ViewRootImpl.java revision c4aad01cbbb69c916ef323693e1fd0560b0eccba
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 QueuedInputEvent mCurrentInputEvent; 249 boolean mProcessInputEventsScheduled; 250 251 boolean mWindowAttributesChanged = false; 252 int mWindowAttributesChangesFlag = 0; 253 254 // These can be accessed by any thread, must be protected with a lock. 255 // Surface can never be reassigned or cleared (use Surface.clear()). 256 private final Surface mSurface = new Surface(); 257 258 boolean mAdded; 259 boolean mAddedTouchMode; 260 261 final CompatibilityInfoHolder mCompatibilityInfo; 262 263 // These are accessed by multiple threads. 264 final Rect mWinFrame; // frame given by window manager. 265 266 final Rect mPendingOverscanInsets = new Rect(); 267 final Rect mPendingVisibleInsets = new Rect(); 268 final Rect mPendingContentInsets = new Rect(); 269 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 270 = new ViewTreeObserver.InternalInsetsInfo(); 271 272 final Rect mFitSystemWindowsInsets = new Rect(); 273 274 final Configuration mLastConfiguration = new Configuration(); 275 final Configuration mPendingConfiguration = new Configuration(); 276 277 boolean mScrollMayChange; 278 int mSoftInputMode; 279 WeakReference<View> mLastScrolledFocus; 280 int mScrollY; 281 int mCurScrollY; 282 Scroller mScroller; 283 HardwareLayer mResizeBuffer; 284 long mResizeBufferStartTime; 285 int mResizeBufferDuration; 286 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 287 private ArrayList<LayoutTransition> mPendingTransitions; 288 289 final ViewConfiguration mViewConfiguration; 290 291 /* Drag/drop */ 292 ClipDescription mDragDescription; 293 View mCurrentDragView; 294 volatile Object mLocalDragState; 295 final PointF mDragPoint = new PointF(); 296 final PointF mLastTouchPoint = new PointF(); 297 298 private boolean mProfileRendering; 299 private Choreographer.FrameCallback mRenderProfiler; 300 private boolean mRenderProfilingEnabled; 301 302 // Variables to track frames per second, enabled via DEBUG_FPS flag 303 private long mFpsStartTime = -1; 304 private long mFpsPrevTime = -1; 305 private int mFpsNumFrames; 306 307 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 308 309 /** 310 * see {@link #playSoundEffect(int)} 311 */ 312 AudioManager mAudioManager; 313 314 final AccessibilityManager mAccessibilityManager; 315 316 AccessibilityInteractionController mAccessibilityInteractionController; 317 318 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 319 320 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 321 322 HashSet<View> mTempHashSet; 323 324 private final int mDensity; 325 private final int mNoncompatDensity; 326 327 private boolean mInLayout = false; 328 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 329 boolean mHandlingLayoutInLayoutRequest = false; 330 331 private int mViewLayoutDirectionInitial; 332 333 /** 334 * Consistency verifier for debugging purposes. 335 */ 336 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 337 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 338 new InputEventConsistencyVerifier(this, 0) : null; 339 340 static final class SystemUiVisibilityInfo { 341 int seq; 342 int globalVisibility; 343 int localValue; 344 int localChanges; 345 } 346 347 public ViewRootImpl(Context context, Display display) { 348 super(); 349 350 if (MEASURE_LATENCY) { 351 if (lt == null) { 352 lt = new LatencyTimer(100, 1000); 353 } 354 } 355 356 // Initialize the statics when this class is first instantiated. This is 357 // done here instead of in the static block because Zygote does not 358 // allow the spawning of threads. 359 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 360 mDisplay = display; 361 mBasePackageName = context.getBasePackageName(); 362 363 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 364 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 365 366 mThread = Thread.currentThread(); 367 mLocation = new WindowLeaked(null); 368 mLocation.fillInStackTrace(); 369 mWidth = -1; 370 mHeight = -1; 371 mDirty = new Rect(); 372 mTempRect = new Rect(); 373 mVisRect = new Rect(); 374 mWinFrame = new Rect(); 375 mWindow = new W(this); 376 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 377 mInputMethodCallback = new InputMethodCallback(this); 378 mViewVisibility = View.GONE; 379 mTransparentRegion = new Region(); 380 mPreviousTransparentRegion = new Region(); 381 mFirst = true; // true for the first time the view is added 382 mAdded = false; 383 mAccessibilityManager = AccessibilityManager.getInstance(context); 384 mAccessibilityInteractionConnectionManager = 385 new AccessibilityInteractionConnectionManager(); 386 mAccessibilityManager.addAccessibilityStateChangeListener( 387 mAccessibilityInteractionConnectionManager); 388 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 389 mViewConfiguration = ViewConfiguration.get(context); 390 mDensity = context.getResources().getDisplayMetrics().densityDpi; 391 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 392 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 393 mChoreographer = Choreographer.getInstance(); 394 395 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 396 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 397 loadSystemProperties(); 398 mSimulatedDpad = new SimulatedDpad(context); 399 } 400 401 /** 402 * @return True if the application requests the use of a separate render thread, 403 * false otherwise 404 */ 405 private static boolean isRenderThreadRequested(Context context) { 406 if (USE_RENDER_THREAD) { 407 synchronized (sRenderThreadQueryLock) { 408 if (!sRenderThreadQueried) { 409 final PackageManager packageManager = context.getPackageManager(); 410 final String packageName = context.getApplicationInfo().packageName; 411 try { 412 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 413 PackageManager.GET_META_DATA); 414 if (applicationInfo.metaData != null) { 415 sUseRenderThread = applicationInfo.metaData.getBoolean( 416 "android.graphics.renderThread", false); 417 } 418 } catch (PackageManager.NameNotFoundException e) { 419 } finally { 420 sRenderThreadQueried = true; 421 } 422 } 423 return sUseRenderThread; 424 } 425 } else { 426 return false; 427 } 428 } 429 430 public static void addFirstDrawHandler(Runnable callback) { 431 synchronized (sFirstDrawHandlers) { 432 if (!sFirstDrawComplete) { 433 sFirstDrawHandlers.add(callback); 434 } 435 } 436 } 437 438 public static void addConfigCallback(ComponentCallbacks callback) { 439 synchronized (sConfigCallbacks) { 440 sConfigCallbacks.add(callback); 441 } 442 } 443 444 // FIXME for perf testing only 445 private boolean mProfile = false; 446 447 /** 448 * Call this to profile the next traversal call. 449 * FIXME for perf testing only. Remove eventually 450 */ 451 public void profile() { 452 mProfile = true; 453 } 454 455 /** 456 * Indicates whether we are in touch mode. Calling this method triggers an IPC 457 * call and should be avoided whenever possible. 458 * 459 * @return True, if the device is in touch mode, false otherwise. 460 * 461 * @hide 462 */ 463 static boolean isInTouchMode() { 464 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 465 if (windowSession != null) { 466 try { 467 return windowSession.getInTouchMode(); 468 } catch (RemoteException e) { 469 } 470 } 471 return false; 472 } 473 474 /** 475 * We have one child 476 */ 477 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 478 synchronized (this) { 479 if (mView == null) { 480 mView = view; 481 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 482 mFallbackEventHandler.setView(view); 483 mWindowAttributes.copyFrom(attrs); 484 if (mWindowAttributes.packageName == null) { 485 mWindowAttributes.packageName = mBasePackageName; 486 } 487 attrs = mWindowAttributes; 488 // Keep track of the actual window flags supplied by the client. 489 mClientWindowLayoutFlags = attrs.flags; 490 491 setAccessibilityFocus(null, null); 492 493 if (view instanceof RootViewSurfaceTaker) { 494 mSurfaceHolderCallback = 495 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 496 if (mSurfaceHolderCallback != null) { 497 mSurfaceHolder = new TakenSurfaceHolder(); 498 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 499 } 500 } 501 502 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 503 mTranslator = compatibilityInfo.getTranslator(); 504 505 // If the application owns the surface, don't enable hardware acceleration 506 if (mSurfaceHolder == null) { 507 enableHardwareAcceleration(mView.getContext(), attrs); 508 } 509 510 boolean restore = false; 511 if (mTranslator != null) { 512 mSurface.setCompatibilityTranslator(mTranslator); 513 restore = true; 514 attrs.backup(); 515 mTranslator.translateWindowLayout(attrs); 516 } 517 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 518 519 if (!compatibilityInfo.supportsScreen()) { 520 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 521 mLastInCompatMode = true; 522 } 523 524 mSoftInputMode = attrs.softInputMode; 525 mWindowAttributesChanged = true; 526 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 527 mAttachInfo.mRootView = view; 528 mAttachInfo.mScalingRequired = mTranslator != null; 529 mAttachInfo.mApplicationScale = 530 mTranslator == null ? 1.0f : mTranslator.applicationScale; 531 if (panelParentView != null) { 532 mAttachInfo.mPanelParentWindowToken 533 = panelParentView.getApplicationWindowToken(); 534 } 535 mAdded = true; 536 int res; /* = WindowManagerImpl.ADD_OKAY; */ 537 538 // Schedule the first layout -before- adding to the window 539 // manager, to make sure we do the relayout before receiving 540 // any other events from the system. 541 requestLayout(); 542 if ((mWindowAttributes.inputFeatures 543 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 544 mInputChannel = new InputChannel(); 545 } 546 try { 547 mOrigWindowType = mWindowAttributes.type; 548 mAttachInfo.mRecomputeGlobalAttributes = true; 549 collectViewAttributes(); 550 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 551 getHostVisibility(), mDisplay.getDisplayId(), 552 mAttachInfo.mContentInsets, mInputChannel); 553 } catch (RemoteException e) { 554 mAdded = false; 555 mView = null; 556 mAttachInfo.mRootView = null; 557 mInputChannel = null; 558 mFallbackEventHandler.setView(null); 559 unscheduleTraversals(); 560 setAccessibilityFocus(null, null); 561 throw new RuntimeException("Adding window failed", e); 562 } finally { 563 if (restore) { 564 attrs.restore(); 565 } 566 } 567 568 if (mTranslator != null) { 569 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 570 } 571 mPendingOverscanInsets.set(0, 0, 0, 0); 572 mPendingContentInsets.set(mAttachInfo.mContentInsets); 573 mPendingVisibleInsets.set(0, 0, 0, 0); 574 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 575 if (res < WindowManagerGlobal.ADD_OKAY) { 576 mAttachInfo.mRootView = null; 577 mAdded = false; 578 mFallbackEventHandler.setView(null); 579 unscheduleTraversals(); 580 setAccessibilityFocus(null, null); 581 switch (res) { 582 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 583 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 584 throw new WindowManager.BadTokenException( 585 "Unable to add window -- token " + attrs.token 586 + " is not valid; is your activity running?"); 587 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 588 throw new WindowManager.BadTokenException( 589 "Unable to add window -- token " + attrs.token 590 + " is not for an application"); 591 case WindowManagerGlobal.ADD_APP_EXITING: 592 throw new WindowManager.BadTokenException( 593 "Unable to add window -- app for token " + attrs.token 594 + " is exiting"); 595 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 596 throw new WindowManager.BadTokenException( 597 "Unable to add window -- window " + mWindow 598 + " has already been added"); 599 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 600 // Silently ignore -- we would have just removed it 601 // right away, anyway. 602 return; 603 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 604 throw new WindowManager.BadTokenException( 605 "Unable to add window " + mWindow + 606 " -- another window of this type already exists"); 607 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 608 throw new WindowManager.BadTokenException( 609 "Unable to add window " + mWindow + 610 " -- permission denied for this window type"); 611 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 612 throw new WindowManager.InvalidDisplayException( 613 "Unable to add window " + mWindow + 614 " -- the specified display can not be found"); 615 } 616 throw new RuntimeException( 617 "Unable to add window -- unknown error code " + res); 618 } 619 620 if (view instanceof RootViewSurfaceTaker) { 621 mInputQueueCallback = 622 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 623 } 624 if (mInputChannel != null) { 625 if (mInputQueueCallback != null) { 626 mInputQueue = new InputQueue(mInputChannel); 627 mInputQueueCallback.onInputQueueCreated(mInputQueue); 628 } else { 629 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 630 Looper.myLooper()); 631 } 632 } 633 634 view.assignParent(this); 635 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 636 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 637 638 if (mAccessibilityManager.isEnabled()) { 639 mAccessibilityInteractionConnectionManager.ensureConnection(); 640 } 641 642 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 643 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 644 } 645 } 646 } 647 } 648 649 void destroyHardwareResources() { 650 if (mAttachInfo.mHardwareRenderer != null) { 651 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 652 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 653 } 654 mAttachInfo.mHardwareRenderer.destroy(false); 655 } 656 } 657 658 void terminateHardwareResources() { 659 if (mAttachInfo.mHardwareRenderer != null) { 660 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 661 mAttachInfo.mHardwareRenderer.destroy(false); 662 } 663 } 664 665 void destroyHardwareLayers() { 666 if (mThread != Thread.currentThread()) { 667 if (mAttachInfo.mHardwareRenderer != null && 668 mAttachInfo.mHardwareRenderer.isEnabled()) { 669 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 670 } 671 } else { 672 if (mAttachInfo.mHardwareRenderer != null && 673 mAttachInfo.mHardwareRenderer.isEnabled()) { 674 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 675 } 676 } 677 } 678 679 void pushHardwareLayerUpdate(HardwareLayer layer) { 680 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 681 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 682 } 683 } 684 685 public boolean attachFunctor(int functor) { 686 //noinspection SimplifiableIfStatement 687 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 688 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 689 } 690 return false; 691 } 692 693 public void detachFunctor(int functor) { 694 if (mAttachInfo.mHardwareRenderer != null) { 695 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 696 } 697 } 698 699 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 700 mAttachInfo.mHardwareAccelerated = false; 701 mAttachInfo.mHardwareAccelerationRequested = false; 702 703 // Don't enable hardware acceleration when the application is in compatibility mode 704 if (mTranslator != null) return; 705 706 // Try to enable hardware acceleration if requested 707 final boolean hardwareAccelerated = 708 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 709 710 if (hardwareAccelerated) { 711 if (!HardwareRenderer.isAvailable()) { 712 return; 713 } 714 715 // Persistent processes (including the system) should not do 716 // accelerated rendering on low-end devices. In that case, 717 // sRendererDisabled will be set. In addition, the system process 718 // itself should never do accelerated rendering. In that case, both 719 // sRendererDisabled and sSystemRendererDisabled are set. When 720 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 721 // can be used by code on the system process to escape that and enable 722 // HW accelerated drawing. (This is basically for the lock screen.) 723 724 final boolean fakeHwAccelerated = (attrs.privateFlags & 725 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 726 final boolean forceHwAccelerated = (attrs.privateFlags & 727 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 728 729 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 730 && forceHwAccelerated)) { 731 // Don't enable hardware acceleration when we're not on the main thread 732 if (!HardwareRenderer.sSystemRendererDisabled && 733 Looper.getMainLooper() != Looper.myLooper()) { 734 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 735 + "acceleration outside of the main thread, aborting"); 736 return; 737 } 738 739 final boolean renderThread = isRenderThreadRequested(context); 740 if (renderThread) { 741 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 742 } 743 744 if (mAttachInfo.mHardwareRenderer != null) { 745 mAttachInfo.mHardwareRenderer.destroy(true); 746 } 747 748 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 749 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 750 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 751 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 752 = mAttachInfo.mHardwareRenderer != null; 753 754 } else if (fakeHwAccelerated) { 755 // The window had wanted to use hardware acceleration, but this 756 // is not allowed in its process. By setting this flag, it can 757 // still render as if it was accelerated. This is basically for 758 // the preview windows the window manager shows for launching 759 // applications, so they will look more like the app being launched. 760 mAttachInfo.mHardwareAccelerationRequested = true; 761 } 762 } 763 } 764 765 public View getView() { 766 return mView; 767 } 768 769 final WindowLeaked getLocation() { 770 return mLocation; 771 } 772 773 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 774 synchronized (this) { 775 int oldSoftInputMode = mWindowAttributes.softInputMode; 776 // Keep track of the actual window flags supplied by the client. 777 mClientWindowLayoutFlags = attrs.flags; 778 // preserve compatible window flag if exists. 779 int compatibleWindowFlag = 780 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 781 // transfer over system UI visibility values as they carry current state. 782 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 783 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 784 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 785 if (mWindowAttributes.packageName == null) { 786 mWindowAttributes.packageName = mBasePackageName; 787 } 788 mWindowAttributes.flags |= compatibleWindowFlag; 789 790 applyKeepScreenOnFlag(mWindowAttributes); 791 792 if (newView) { 793 mSoftInputMode = attrs.softInputMode; 794 requestLayout(); 795 } 796 // Don't lose the mode we last auto-computed. 797 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 798 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 799 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 800 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 801 | (oldSoftInputMode 802 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 803 } 804 mWindowAttributesChanged = true; 805 scheduleTraversals(); 806 } 807 } 808 809 void handleAppVisibility(boolean visible) { 810 if (mAppVisible != visible) { 811 mAppVisible = visible; 812 scheduleTraversals(); 813 } 814 } 815 816 void handleGetNewSurface() { 817 mNewSurfaceNeeded = true; 818 mFullRedrawNeeded = true; 819 scheduleTraversals(); 820 } 821 822 void handleScreenStateChange(boolean on) { 823 if (on != mAttachInfo.mScreenOn) { 824 mAttachInfo.mScreenOn = on; 825 if (mView != null) { 826 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 827 } 828 if (on) { 829 mFullRedrawNeeded = true; 830 scheduleTraversals(); 831 } 832 } 833 } 834 835 @Override 836 public void requestFitSystemWindows() { 837 checkThread(); 838 mFitSystemWindowsRequested = true; 839 scheduleTraversals(); 840 } 841 842 @Override 843 public void requestLayout() { 844 if (!mHandlingLayoutInLayoutRequest) { 845 checkThread(); 846 mLayoutRequested = true; 847 scheduleTraversals(); 848 } 849 } 850 851 @Override 852 public boolean isLayoutRequested() { 853 return mLayoutRequested; 854 } 855 856 void invalidate() { 857 mDirty.set(0, 0, mWidth, mHeight); 858 scheduleTraversals(); 859 } 860 861 void invalidateWorld(View view) { 862 view.invalidate(); 863 if (view instanceof ViewGroup) { 864 ViewGroup parent = (ViewGroup) view; 865 for (int i = 0; i < parent.getChildCount(); i++) { 866 invalidateWorld(parent.getChildAt(i)); 867 } 868 } 869 } 870 871 @Override 872 public void invalidateChild(View child, Rect dirty) { 873 invalidateChildInParent(null, dirty); 874 } 875 876 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 877 checkThread(); 878 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 879 880 if (dirty == null) { 881 invalidate(); 882 return null; 883 } else if (dirty.isEmpty() && !mIsAnimating) { 884 return null; 885 } 886 887 if (mCurScrollY != 0 || mTranslator != null) { 888 mTempRect.set(dirty); 889 dirty = mTempRect; 890 if (mCurScrollY != 0) { 891 dirty.offset(0, -mCurScrollY); 892 } 893 if (mTranslator != null) { 894 mTranslator.translateRectInAppWindowToScreen(dirty); 895 } 896 if (mAttachInfo.mScalingRequired) { 897 dirty.inset(-1, -1); 898 } 899 } 900 901 final Rect localDirty = mDirty; 902 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 903 mAttachInfo.mSetIgnoreDirtyState = true; 904 mAttachInfo.mIgnoreDirtyState = true; 905 } 906 907 // Add the new dirty rect to the current one 908 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 909 // Intersect with the bounds of the window to skip 910 // updates that lie outside of the visible region 911 final float appScale = mAttachInfo.mApplicationScale; 912 final boolean intersected = localDirty.intersect(0, 0, 913 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 914 if (!intersected) { 915 localDirty.setEmpty(); 916 } 917 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 918 scheduleTraversals(); 919 } 920 921 return null; 922 } 923 924 void setStopped(boolean stopped) { 925 if (mStopped != stopped) { 926 mStopped = stopped; 927 if (!stopped) { 928 scheduleTraversals(); 929 } 930 } 931 } 932 933 public ViewParent getParent() { 934 return null; 935 } 936 937 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 938 if (child != mView) { 939 throw new RuntimeException("child is not mine, honest!"); 940 } 941 // Note: don't apply scroll offset, because we want to know its 942 // visibility in the virtual canvas being given to the view hierarchy. 943 return r.intersect(0, 0, mWidth, mHeight); 944 } 945 946 public void bringChildToFront(View child) { 947 } 948 949 int getHostVisibility() { 950 return mAppVisible ? mView.getVisibility() : View.GONE; 951 } 952 953 void disposeResizeBuffer() { 954 if (mResizeBuffer != null) { 955 mResizeBuffer.destroy(); 956 mResizeBuffer = null; 957 } 958 } 959 960 /** 961 * Add LayoutTransition to the list of transitions to be started in the next traversal. 962 * This list will be cleared after the transitions on the list are start()'ed. These 963 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 964 * happens during the layout phase of traversal, which we want to complete before any of the 965 * animations are started (because those animations may side-effect properties that layout 966 * depends upon, like the bounding rectangles of the affected views). So we add the transition 967 * to the list and it is started just prior to starting the drawing phase of traversal. 968 * 969 * @param transition The LayoutTransition to be started on the next traversal. 970 * 971 * @hide 972 */ 973 public void requestTransitionStart(LayoutTransition transition) { 974 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 975 if (mPendingTransitions == null) { 976 mPendingTransitions = new ArrayList<LayoutTransition>(); 977 } 978 mPendingTransitions.add(transition); 979 } 980 } 981 982 void scheduleTraversals() { 983 if (!mTraversalScheduled) { 984 mTraversalScheduled = true; 985 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 986 mChoreographer.postCallback( 987 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 988 scheduleConsumeBatchedInput(); 989 } 990 } 991 992 void unscheduleTraversals() { 993 if (mTraversalScheduled) { 994 mTraversalScheduled = false; 995 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 996 mChoreographer.removeCallbacks( 997 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 998 } 999 } 1000 1001 void doTraversal() { 1002 if (mTraversalScheduled) { 1003 mTraversalScheduled = false; 1004 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1005 1006 if (mProfile) { 1007 Debug.startMethodTracing("ViewAncestor"); 1008 } 1009 1010 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1011 try { 1012 performTraversals(); 1013 } finally { 1014 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1015 } 1016 1017 if (mProfile) { 1018 Debug.stopMethodTracing(); 1019 mProfile = false; 1020 } 1021 } 1022 } 1023 1024 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1025 // Update window's global keep screen on flag: if a view has requested 1026 // that the screen be kept on, then it is always set; otherwise, it is 1027 // set to whatever the client last requested for the global state. 1028 if (mAttachInfo.mKeepScreenOn) { 1029 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1030 } else { 1031 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1032 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1033 } 1034 } 1035 1036 private boolean collectViewAttributes() { 1037 final View.AttachInfo attachInfo = mAttachInfo; 1038 if (attachInfo.mRecomputeGlobalAttributes) { 1039 //Log.i(TAG, "Computing view hierarchy attributes!"); 1040 attachInfo.mRecomputeGlobalAttributes = false; 1041 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1042 attachInfo.mKeepScreenOn = false; 1043 attachInfo.mSystemUiVisibility = 0; 1044 attachInfo.mHasSystemUiListeners = false; 1045 mView.dispatchCollectViewAttributes(attachInfo, 0); 1046 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1047 WindowManager.LayoutParams params = mWindowAttributes; 1048 if (attachInfo.mKeepScreenOn != oldScreenOn 1049 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1050 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1051 applyKeepScreenOnFlag(params); 1052 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1053 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1054 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1055 return true; 1056 } 1057 } 1058 return false; 1059 } 1060 1061 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1062 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1063 int childWidthMeasureSpec; 1064 int childHeightMeasureSpec; 1065 boolean windowSizeMayChange = false; 1066 1067 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1068 "Measuring " + host + " in display " + desiredWindowWidth 1069 + "x" + desiredWindowHeight + "..."); 1070 1071 boolean goodMeasure = false; 1072 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1073 // On large screens, we don't want to allow dialogs to just 1074 // stretch to fill the entire width of the screen to display 1075 // one line of text. First try doing the layout at a smaller 1076 // size to see if it will fit. 1077 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1078 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1079 int baseSize = 0; 1080 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1081 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1082 } 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1084 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1085 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1086 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1087 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1088 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1089 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1090 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1091 goodMeasure = true; 1092 } else { 1093 // Didn't fit in that size... try expanding a bit. 1094 baseSize = (baseSize+desiredWindowWidth)/2; 1095 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1096 + baseSize); 1097 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1098 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1099 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1100 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1101 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1102 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1103 goodMeasure = true; 1104 } 1105 } 1106 } 1107 } 1108 1109 if (!goodMeasure) { 1110 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1111 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1112 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1113 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1114 windowSizeMayChange = true; 1115 } 1116 } 1117 1118 if (DBG) { 1119 System.out.println("======================================"); 1120 System.out.println("performTraversals -- after measure"); 1121 host.debug(); 1122 } 1123 1124 return windowSizeMayChange; 1125 } 1126 1127 private void performTraversals() { 1128 // cache mView since it is used so much below... 1129 final View host = mView; 1130 1131 if (DBG) { 1132 System.out.println("======================================"); 1133 System.out.println("performTraversals"); 1134 host.debug(); 1135 } 1136 1137 if (host == null || !mAdded) 1138 return; 1139 1140 mIsInTraversal = true; 1141 mWillDrawSoon = true; 1142 boolean windowSizeMayChange = false; 1143 boolean newSurface = false; 1144 boolean surfaceChanged = false; 1145 WindowManager.LayoutParams lp = mWindowAttributes; 1146 1147 int desiredWindowWidth; 1148 int desiredWindowHeight; 1149 1150 final View.AttachInfo attachInfo = mAttachInfo; 1151 1152 final int viewVisibility = getHostVisibility(); 1153 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1154 || mNewSurfaceNeeded; 1155 1156 WindowManager.LayoutParams params = null; 1157 if (mWindowAttributesChanged) { 1158 mWindowAttributesChanged = false; 1159 surfaceChanged = true; 1160 params = lp; 1161 } 1162 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1163 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1164 params = lp; 1165 mFullRedrawNeeded = true; 1166 mLayoutRequested = true; 1167 if (mLastInCompatMode) { 1168 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1169 mLastInCompatMode = false; 1170 } else { 1171 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1172 mLastInCompatMode = true; 1173 } 1174 } 1175 1176 mWindowAttributesChangesFlag = 0; 1177 1178 Rect frame = mWinFrame; 1179 if (mFirst) { 1180 mFullRedrawNeeded = true; 1181 mLayoutRequested = true; 1182 1183 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1184 // NOTE -- system code, won't try to do compat mode. 1185 Point size = new Point(); 1186 mDisplay.getRealSize(size); 1187 desiredWindowWidth = size.x; 1188 desiredWindowHeight = size.y; 1189 } else { 1190 DisplayMetrics packageMetrics = 1191 mView.getContext().getResources().getDisplayMetrics(); 1192 desiredWindowWidth = packageMetrics.widthPixels; 1193 desiredWindowHeight = packageMetrics.heightPixels; 1194 } 1195 1196 // For the very first time, tell the view hierarchy that it 1197 // is attached to the window. Note that at this point the surface 1198 // object is not initialized to its backing store, but soon it 1199 // will be (assuming the window is visible). 1200 attachInfo.mSurface = mSurface; 1201 // We used to use the following condition to choose 32 bits drawing caches: 1202 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1203 // However, windows are now always 32 bits by default, so choose 32 bits 1204 attachInfo.mUse32BitDrawingCache = true; 1205 attachInfo.mHasWindowFocus = false; 1206 attachInfo.mWindowVisibility = viewVisibility; 1207 attachInfo.mRecomputeGlobalAttributes = false; 1208 viewVisibilityChanged = false; 1209 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1210 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1211 // Set the layout direction if it has not been set before (inherit is the default) 1212 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1213 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1214 } 1215 host.dispatchAttachedToWindow(attachInfo, 0); 1216 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1217 host.fitSystemWindows(mFitSystemWindowsInsets); 1218 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1219 1220 } else { 1221 desiredWindowWidth = frame.width(); 1222 desiredWindowHeight = frame.height(); 1223 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1224 if (DEBUG_ORIENTATION) Log.v(TAG, 1225 "View " + host + " resized to: " + frame); 1226 mFullRedrawNeeded = true; 1227 mLayoutRequested = true; 1228 windowSizeMayChange = true; 1229 } 1230 } 1231 1232 if (viewVisibilityChanged) { 1233 attachInfo.mWindowVisibility = viewVisibility; 1234 host.dispatchWindowVisibilityChanged(viewVisibility); 1235 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1236 destroyHardwareResources(); 1237 } 1238 if (viewVisibility == View.GONE) { 1239 // After making a window gone, we will count it as being 1240 // shown for the first time the next time it gets focus. 1241 mHasHadWindowFocus = false; 1242 } 1243 } 1244 1245 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1246 getRunQueue().executeActions(attachInfo.mHandler); 1247 1248 boolean insetsChanged = false; 1249 1250 boolean layoutRequested = mLayoutRequested && !mStopped; 1251 if (layoutRequested) { 1252 1253 final Resources res = mView.getContext().getResources(); 1254 1255 if (mFirst) { 1256 // make sure touch mode code executes by setting cached value 1257 // to opposite of the added touch mode. 1258 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1259 ensureTouchModeLocally(mAddedTouchMode); 1260 } else { 1261 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1262 insetsChanged = true; 1263 } 1264 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1265 insetsChanged = true; 1266 } 1267 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1268 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1269 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1270 + mAttachInfo.mVisibleInsets); 1271 } 1272 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1273 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1274 windowSizeMayChange = true; 1275 1276 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1277 // NOTE -- system code, won't try to do compat mode. 1278 Point size = new Point(); 1279 mDisplay.getRealSize(size); 1280 desiredWindowWidth = size.x; 1281 desiredWindowHeight = size.y; 1282 } else { 1283 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1284 desiredWindowWidth = packageMetrics.widthPixels; 1285 desiredWindowHeight = packageMetrics.heightPixels; 1286 } 1287 } 1288 } 1289 1290 // Ask host how big it wants to be 1291 windowSizeMayChange |= measureHierarchy(host, lp, res, 1292 desiredWindowWidth, desiredWindowHeight); 1293 } 1294 1295 if (collectViewAttributes()) { 1296 params = lp; 1297 } 1298 if (attachInfo.mForceReportNewAttributes) { 1299 attachInfo.mForceReportNewAttributes = false; 1300 params = lp; 1301 } 1302 1303 if (mFirst || attachInfo.mViewVisibilityChanged) { 1304 attachInfo.mViewVisibilityChanged = false; 1305 int resizeMode = mSoftInputMode & 1306 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1307 // If we are in auto resize mode, then we need to determine 1308 // what mode to use now. 1309 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1310 final int N = attachInfo.mScrollContainers.size(); 1311 for (int i=0; i<N; i++) { 1312 if (attachInfo.mScrollContainers.get(i).isShown()) { 1313 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1314 } 1315 } 1316 if (resizeMode == 0) { 1317 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1318 } 1319 if ((lp.softInputMode & 1320 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1321 lp.softInputMode = (lp.softInputMode & 1322 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1323 resizeMode; 1324 params = lp; 1325 } 1326 } 1327 } 1328 1329 if (params != null) { 1330 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1331 if (!PixelFormat.formatHasAlpha(params.format)) { 1332 params.format = PixelFormat.TRANSLUCENT; 1333 } 1334 } 1335 mAttachInfo.mOverscanRequested = (params.flags 1336 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1337 } 1338 1339 if (mFitSystemWindowsRequested) { 1340 mFitSystemWindowsRequested = false; 1341 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1342 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1343 host.fitSystemWindows(mFitSystemWindowsInsets); 1344 if (mLayoutRequested) { 1345 // Short-circuit catching a new layout request here, so 1346 // we don't need to go through two layout passes when things 1347 // change due to fitting system windows, which can happen a lot. 1348 windowSizeMayChange |= measureHierarchy(host, lp, 1349 mView.getContext().getResources(), 1350 desiredWindowWidth, desiredWindowHeight); 1351 } 1352 } 1353 1354 if (layoutRequested) { 1355 // Clear this now, so that if anything requests a layout in the 1356 // rest of this function we will catch it and re-run a full 1357 // layout pass. 1358 mLayoutRequested = false; 1359 } 1360 1361 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1362 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1363 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1364 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1365 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1366 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1367 1368 final boolean computesInternalInsets = 1369 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1370 1371 boolean insetsPending = false; 1372 int relayoutResult = 0; 1373 1374 if (mFirst || windowShouldResize || insetsChanged || 1375 viewVisibilityChanged || params != null) { 1376 1377 if (viewVisibility == View.VISIBLE) { 1378 // If this window is giving internal insets to the window 1379 // manager, and it is being added or changing its visibility, 1380 // then we want to first give the window manager "fake" 1381 // insets to cause it to effectively ignore the content of 1382 // the window during layout. This avoids it briefly causing 1383 // other windows to resize/move based on the raw frame of the 1384 // window, waiting until we can finish laying out this window 1385 // and get back to the window manager with the ultimately 1386 // computed insets. 1387 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1388 } 1389 1390 if (mSurfaceHolder != null) { 1391 mSurfaceHolder.mSurfaceLock.lock(); 1392 mDrawingAllowed = true; 1393 } 1394 1395 boolean hwInitialized = false; 1396 boolean contentInsetsChanged = false; 1397 boolean hadSurface = mSurface.isValid(); 1398 1399 try { 1400 if (DEBUG_LAYOUT) { 1401 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1402 host.getMeasuredHeight() + ", params=" + params); 1403 } 1404 1405 final int surfaceGenerationId = mSurface.getGenerationId(); 1406 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1407 1408 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1409 + " overscan=" + mPendingOverscanInsets.toShortString() 1410 + " content=" + mPendingContentInsets.toShortString() 1411 + " visible=" + mPendingVisibleInsets.toShortString() 1412 + " surface=" + mSurface); 1413 1414 if (mPendingConfiguration.seq != 0) { 1415 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1416 + mPendingConfiguration); 1417 updateConfiguration(mPendingConfiguration, !mFirst); 1418 mPendingConfiguration.seq = 0; 1419 } 1420 1421 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1422 mAttachInfo.mOverscanInsets); 1423 contentInsetsChanged = !mPendingContentInsets.equals( 1424 mAttachInfo.mContentInsets); 1425 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1426 mAttachInfo.mVisibleInsets); 1427 if (contentInsetsChanged) { 1428 if (mWidth > 0 && mHeight > 0 && lp != null && 1429 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1430 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1431 mSurface != null && mSurface.isValid() && 1432 !mAttachInfo.mTurnOffWindowResizeAnim && 1433 mAttachInfo.mHardwareRenderer != null && 1434 mAttachInfo.mHardwareRenderer.isEnabled() && 1435 mAttachInfo.mHardwareRenderer.validate() && 1436 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1437 1438 disposeResizeBuffer(); 1439 1440 boolean completed = false; 1441 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1442 HardwareCanvas layerCanvas = null; 1443 try { 1444 if (mResizeBuffer == null) { 1445 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1446 mWidth, mHeight, false); 1447 } else if (mResizeBuffer.getWidth() != mWidth || 1448 mResizeBuffer.getHeight() != mHeight) { 1449 mResizeBuffer.resize(mWidth, mHeight); 1450 } 1451 // TODO: should handle create/resize failure 1452 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1453 final int restoreCount = layerCanvas.save(); 1454 1455 int yoff; 1456 final boolean scrolling = mScroller != null 1457 && mScroller.computeScrollOffset(); 1458 if (scrolling) { 1459 yoff = mScroller.getCurrY(); 1460 mScroller.abortAnimation(); 1461 } else { 1462 yoff = mScrollY; 1463 } 1464 1465 layerCanvas.translate(0, -yoff); 1466 if (mTranslator != null) { 1467 mTranslator.translateCanvas(layerCanvas); 1468 } 1469 1470 DisplayList displayList = mView.mDisplayList; 1471 if (displayList != null) { 1472 layerCanvas.drawDisplayList(displayList, null, 1473 DisplayList.FLAG_CLIP_CHILDREN); 1474 } else { 1475 mView.draw(layerCanvas); 1476 } 1477 1478 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1479 1480 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1481 mResizeBufferDuration = mView.getResources().getInteger( 1482 com.android.internal.R.integer.config_mediumAnimTime); 1483 completed = true; 1484 1485 layerCanvas.restoreToCount(restoreCount); 1486 } catch (OutOfMemoryError e) { 1487 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1488 } finally { 1489 if (mResizeBuffer != null) { 1490 mResizeBuffer.end(hwRendererCanvas); 1491 if (!completed) { 1492 mResizeBuffer.destroy(); 1493 mResizeBuffer = null; 1494 } 1495 } 1496 } 1497 } 1498 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1499 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1500 + mAttachInfo.mContentInsets); 1501 } 1502 if (overscanInsetsChanged) { 1503 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1504 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1505 + mAttachInfo.mOverscanInsets); 1506 // Need to relayout with content insets. 1507 contentInsetsChanged = true; 1508 } 1509 if (contentInsetsChanged || mLastSystemUiVisibility != 1510 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1511 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1512 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1513 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1514 mFitSystemWindowsRequested = false; 1515 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1516 host.fitSystemWindows(mFitSystemWindowsInsets); 1517 } 1518 if (visibleInsetsChanged) { 1519 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1520 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1521 + mAttachInfo.mVisibleInsets); 1522 } 1523 1524 if (!hadSurface) { 1525 if (mSurface.isValid()) { 1526 // If we are creating a new surface, then we need to 1527 // completely redraw it. Also, when we get to the 1528 // point of drawing it we will hold off and schedule 1529 // a new traversal instead. This is so we can tell the 1530 // window manager about all of the windows being displayed 1531 // before actually drawing them, so it can display then 1532 // all at once. 1533 newSurface = true; 1534 mFullRedrawNeeded = true; 1535 mPreviousTransparentRegion.setEmpty(); 1536 1537 if (mAttachInfo.mHardwareRenderer != null) { 1538 try { 1539 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1540 mHolder.getSurface()); 1541 } catch (Surface.OutOfResourcesException e) { 1542 handleOutOfResourcesException(e); 1543 return; 1544 } 1545 } 1546 } 1547 } else if (!mSurface.isValid()) { 1548 // If the surface has been removed, then reset the scroll 1549 // positions. 1550 if (mLastScrolledFocus != null) { 1551 mLastScrolledFocus.clear(); 1552 } 1553 mScrollY = mCurScrollY = 0; 1554 if (mScroller != null) { 1555 mScroller.abortAnimation(); 1556 } 1557 disposeResizeBuffer(); 1558 // Our surface is gone 1559 if (mAttachInfo.mHardwareRenderer != null && 1560 mAttachInfo.mHardwareRenderer.isEnabled()) { 1561 mAttachInfo.mHardwareRenderer.destroy(true); 1562 } 1563 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1564 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1565 mFullRedrawNeeded = true; 1566 try { 1567 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1568 } catch (Surface.OutOfResourcesException e) { 1569 handleOutOfResourcesException(e); 1570 return; 1571 } 1572 } 1573 } catch (RemoteException e) { 1574 } 1575 1576 if (DEBUG_ORIENTATION) Log.v( 1577 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1578 1579 attachInfo.mWindowLeft = frame.left; 1580 attachInfo.mWindowTop = frame.top; 1581 1582 // !!FIXME!! This next section handles the case where we did not get the 1583 // window size we asked for. We should avoid this by getting a maximum size from 1584 // the window session beforehand. 1585 if (mWidth != frame.width() || mHeight != frame.height()) { 1586 mWidth = frame.width(); 1587 mHeight = frame.height(); 1588 } 1589 1590 if (mSurfaceHolder != null) { 1591 // The app owns the surface; tell it about what is going on. 1592 if (mSurface.isValid()) { 1593 // XXX .copyFrom() doesn't work! 1594 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1595 mSurfaceHolder.mSurface = mSurface; 1596 } 1597 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1598 mSurfaceHolder.mSurfaceLock.unlock(); 1599 if (mSurface.isValid()) { 1600 if (!hadSurface) { 1601 mSurfaceHolder.ungetCallbacks(); 1602 1603 mIsCreating = true; 1604 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1605 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1606 if (callbacks != null) { 1607 for (SurfaceHolder.Callback c : callbacks) { 1608 c.surfaceCreated(mSurfaceHolder); 1609 } 1610 } 1611 surfaceChanged = true; 1612 } 1613 if (surfaceChanged) { 1614 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1615 lp.format, mWidth, mHeight); 1616 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1617 if (callbacks != null) { 1618 for (SurfaceHolder.Callback c : callbacks) { 1619 c.surfaceChanged(mSurfaceHolder, lp.format, 1620 mWidth, mHeight); 1621 } 1622 } 1623 } 1624 mIsCreating = false; 1625 } else if (hadSurface) { 1626 mSurfaceHolder.ungetCallbacks(); 1627 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1628 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1629 if (callbacks != null) { 1630 for (SurfaceHolder.Callback c : callbacks) { 1631 c.surfaceDestroyed(mSurfaceHolder); 1632 } 1633 } 1634 mSurfaceHolder.mSurfaceLock.lock(); 1635 try { 1636 mSurfaceHolder.mSurface = new Surface(); 1637 } finally { 1638 mSurfaceHolder.mSurfaceLock.unlock(); 1639 } 1640 } 1641 } 1642 1643 if (mAttachInfo.mHardwareRenderer != null && 1644 mAttachInfo.mHardwareRenderer.isEnabled()) { 1645 if (hwInitialized || windowShouldResize || 1646 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1647 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1648 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1649 if (!hwInitialized) { 1650 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1651 mFullRedrawNeeded = true; 1652 } 1653 } 1654 } 1655 1656 if (!mStopped) { 1657 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1658 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1659 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1660 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1661 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1662 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1663 1664 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1665 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1666 + " mHeight=" + mHeight 1667 + " measuredHeight=" + host.getMeasuredHeight() 1668 + " coveredInsetsChanged=" + contentInsetsChanged); 1669 1670 // Ask host how big it wants to be 1671 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1672 1673 // Implementation of weights from WindowManager.LayoutParams 1674 // We just grow the dimensions as needed and re-measure if 1675 // needs be 1676 int width = host.getMeasuredWidth(); 1677 int height = host.getMeasuredHeight(); 1678 boolean measureAgain = false; 1679 1680 if (lp.horizontalWeight > 0.0f) { 1681 width += (int) ((mWidth - width) * lp.horizontalWeight); 1682 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1683 MeasureSpec.EXACTLY); 1684 measureAgain = true; 1685 } 1686 if (lp.verticalWeight > 0.0f) { 1687 height += (int) ((mHeight - height) * lp.verticalWeight); 1688 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1689 MeasureSpec.EXACTLY); 1690 measureAgain = true; 1691 } 1692 1693 if (measureAgain) { 1694 if (DEBUG_LAYOUT) Log.v(TAG, 1695 "And hey let's measure once more: width=" + width 1696 + " height=" + height); 1697 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1698 } 1699 1700 layoutRequested = true; 1701 } 1702 } 1703 } else { 1704 // Not the first pass and no window/insets/visibility change but the window 1705 // may have moved and we need check that and if so to update the left and right 1706 // in the attach info. We translate only the window frame since on window move 1707 // the window manager tells us only for the new frame but the insets are the 1708 // same and we do not want to translate them more than once. 1709 1710 // TODO: Well, we are checking whether the frame has changed similarly 1711 // to how this is done for the insets. This is however incorrect since 1712 // the insets and the frame are translated. For example, the old frame 1713 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1714 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1715 // true since we are comparing a not translated value to a translated one. 1716 // This scenario is rare but we may want to fix that. 1717 1718 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1719 || attachInfo.mWindowTop != frame.top); 1720 if (windowMoved) { 1721 if (mTranslator != null) { 1722 mTranslator.translateRectInScreenToAppWinFrame(frame); 1723 } 1724 attachInfo.mWindowLeft = frame.left; 1725 attachInfo.mWindowTop = frame.top; 1726 } 1727 } 1728 1729 final boolean didLayout = layoutRequested && !mStopped; 1730 boolean triggerGlobalLayoutListener = didLayout 1731 || attachInfo.mRecomputeGlobalAttributes; 1732 if (didLayout) { 1733 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1734 1735 // By this point all views have been sized and positionned 1736 // We can compute the transparent area 1737 1738 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1739 // start out transparent 1740 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1741 host.getLocationInWindow(mTmpLocation); 1742 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1743 mTmpLocation[0] + host.mRight - host.mLeft, 1744 mTmpLocation[1] + host.mBottom - host.mTop); 1745 1746 host.gatherTransparentRegion(mTransparentRegion); 1747 if (mTranslator != null) { 1748 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1749 } 1750 1751 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1752 mPreviousTransparentRegion.set(mTransparentRegion); 1753 // reconfigure window manager 1754 try { 1755 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1756 } catch (RemoteException e) { 1757 } 1758 } 1759 } 1760 1761 if (DBG) { 1762 System.out.println("======================================"); 1763 System.out.println("performTraversals -- after setFrame"); 1764 host.debug(); 1765 } 1766 } 1767 1768 if (triggerGlobalLayoutListener) { 1769 attachInfo.mRecomputeGlobalAttributes = false; 1770 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1771 1772 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1773 postSendWindowContentChangedCallback(mView); 1774 } 1775 } 1776 1777 if (computesInternalInsets) { 1778 // Clear the original insets. 1779 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1780 insets.reset(); 1781 1782 // Compute new insets in place. 1783 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1784 1785 // Tell the window manager. 1786 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1787 mLastGivenInsets.set(insets); 1788 1789 // Translate insets to screen coordinates if needed. 1790 final Rect contentInsets; 1791 final Rect visibleInsets; 1792 final Region touchableRegion; 1793 if (mTranslator != null) { 1794 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1795 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1796 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1797 } else { 1798 contentInsets = insets.contentInsets; 1799 visibleInsets = insets.visibleInsets; 1800 touchableRegion = insets.touchableRegion; 1801 } 1802 1803 try { 1804 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1805 contentInsets, visibleInsets, touchableRegion); 1806 } catch (RemoteException e) { 1807 } 1808 } 1809 } 1810 1811 boolean skipDraw = false; 1812 1813 if (mFirst) { 1814 // handle first focus request 1815 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1816 + mView.hasFocus()); 1817 if (mView != null) { 1818 if (!mView.hasFocus()) { 1819 mView.requestFocus(View.FOCUS_FORWARD); 1820 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1821 + mView.findFocus()); 1822 } else { 1823 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1824 + mView.findFocus()); 1825 } 1826 } 1827 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1828 // The first time we relayout the window, if the system is 1829 // doing window animations, we want to hold of on any future 1830 // draws until the animation is done. 1831 mWindowsAnimating = true; 1832 } 1833 } else if (mWindowsAnimating) { 1834 skipDraw = true; 1835 } 1836 1837 mFirst = false; 1838 mWillDrawSoon = false; 1839 mNewSurfaceNeeded = false; 1840 mViewVisibility = viewVisibility; 1841 1842 if (mAttachInfo.mHasWindowFocus) { 1843 final boolean imTarget = WindowManager.LayoutParams 1844 .mayUseInputMethod(mWindowAttributes.flags); 1845 if (imTarget != mLastWasImTarget) { 1846 mLastWasImTarget = imTarget; 1847 InputMethodManager imm = InputMethodManager.peekInstance(); 1848 if (imm != null && imTarget) { 1849 imm.startGettingWindowFocus(mView); 1850 imm.onWindowFocus(mView, mView.findFocus(), 1851 mWindowAttributes.softInputMode, 1852 !mHasHadWindowFocus, mWindowAttributes.flags); 1853 } 1854 } 1855 } 1856 1857 // Remember if we must report the next draw. 1858 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1859 mReportNextDraw = true; 1860 } 1861 1862 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1863 viewVisibility != View.VISIBLE; 1864 1865 if (!cancelDraw && !newSurface) { 1866 if (!skipDraw || mReportNextDraw) { 1867 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1868 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1869 mPendingTransitions.get(i).startChangingAnimations(); 1870 } 1871 mPendingTransitions.clear(); 1872 } 1873 1874 performDraw(); 1875 } 1876 } else { 1877 if (viewVisibility == View.VISIBLE) { 1878 // Try again 1879 scheduleTraversals(); 1880 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1881 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1882 mPendingTransitions.get(i).endChangingAnimations(); 1883 } 1884 mPendingTransitions.clear(); 1885 } 1886 } 1887 1888 mIsInTraversal = false; 1889 } 1890 1891 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1892 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1893 try { 1894 if (!mWindowSession.outOfMemory(mWindow) && 1895 Process.myUid() != Process.SYSTEM_UID) { 1896 Slog.w(TAG, "No processes killed for memory; killing self"); 1897 Process.killProcess(Process.myPid()); 1898 } 1899 } catch (RemoteException ex) { 1900 } 1901 mLayoutRequested = true; // ask wm for a new surface next time. 1902 } 1903 1904 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1905 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1906 try { 1907 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1908 } finally { 1909 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1910 } 1911 } 1912 1913 /** 1914 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1915 * is currently undergoing a layout pass. 1916 * 1917 * @return whether the view hierarchy is currently undergoing a layout pass 1918 */ 1919 boolean isInLayout() { 1920 return mInLayout; 1921 } 1922 1923 /** 1924 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1925 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1926 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1927 * all children in that container hierarchy are measured and laid out at the end of the layout 1928 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1929 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1930 * we check all of those views to see if any still have pending layout requests, which 1931 * indicates that they were not correctly handled by their container hierarchy. If that is 1932 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1933 * to blank containers, and force a second request/measure/layout pass in this frame. If 1934 * more requestLayout() calls are received during that second layout pass, we post those 1935 * requests to the next frame to avoid possible infinite loops. 1936 * 1937 * <p>The return value from this method indicates whether the request should proceed 1938 * (if it is a request during the first layout pass) or should be skipped and posted to the 1939 * next frame (if it is a request during the second layout pass).</p> 1940 * 1941 * @param view the view that requested the layout. 1942 * 1943 * @return true if request should proceed, false otherwise. 1944 */ 1945 boolean requestLayoutDuringLayout(final View view) { 1946 if (view.mParent == null || view.mAttachInfo == null) { 1947 // Would not normally trigger another layout, so just let it pass through as usual 1948 return true; 1949 } 1950 if (!mHandlingLayoutInLayoutRequest) { 1951 if (!mLayoutRequesters.contains(view)) { 1952 mLayoutRequesters.add(view); 1953 } 1954 return true; 1955 } else { 1956 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1957 "posting to next frame"); 1958 view.post(new Runnable() { 1959 @Override 1960 public void run() { 1961 view.requestLayout(); 1962 } 1963 }); 1964 return false; 1965 } 1966 } 1967 1968 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1969 int desiredWindowHeight) { 1970 mLayoutRequested = false; 1971 mScrollMayChange = true; 1972 mInLayout = true; 1973 1974 final View host = mView; 1975 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1976 Log.v(TAG, "Laying out " + host + " to (" + 1977 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1978 } 1979 1980 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1981 try { 1982 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1983 1984 mInLayout = false; 1985 int numViewsRequestingLayout = mLayoutRequesters.size(); 1986 if (numViewsRequestingLayout > 0) { 1987 // requestLayout() was called during layout. 1988 // If no layout-request flags are set on the requesting views, there is no problem. 1989 // If some requests are still pending, then we need to clear those flags and do 1990 // a full request/measure/layout pass to handle this situation. 1991 1992 // Check state of layout flags for all requesters 1993 ArrayList<View> mValidLayoutRequesters = null; 1994 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1995 View view = mLayoutRequesters.get(i); 1996 if ((view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == View.PFLAG_FORCE_LAYOUT) { 1997 while (view != null && view.mAttachInfo != null && view.mParent != null && 1998 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1999 if ((view.mViewFlags & View.VISIBILITY_MASK) != View.GONE) { 2000 // Only trigger new requests for non-GONE views 2001 Log.w(TAG, "requestLayout() improperly called during " + 2002 "layout: running second layout pass for " + view); 2003 if (mValidLayoutRequesters == null) { 2004 mValidLayoutRequesters = new ArrayList<View>(); 2005 } 2006 mValidLayoutRequesters.add(view); 2007 break; 2008 } 2009 if (view.mParent instanceof View) { 2010 view = (View) view.mParent; 2011 } else { 2012 view = null; 2013 } 2014 } 2015 } 2016 } 2017 if (mValidLayoutRequesters != null) { 2018 // Clear flags throughout hierarchy, walking up from each flagged requester 2019 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2020 View view = mLayoutRequesters.get(i); 2021 while (view != null && 2022 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2023 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2024 if (view.mParent instanceof View) { 2025 view = (View) view.mParent; 2026 } else { 2027 view = null; 2028 } 2029 } 2030 } 2031 // Process fresh layout requests, then measure and layout 2032 mHandlingLayoutInLayoutRequest = true; 2033 int numValidRequests = mValidLayoutRequesters.size(); 2034 for (int i = 0; i < numValidRequests; ++i) { 2035 mValidLayoutRequesters.get(i).requestLayout(); 2036 } 2037 measureHierarchy(host, lp, mView.getContext().getResources(), 2038 desiredWindowWidth, desiredWindowHeight); 2039 mInLayout = true; 2040 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2041 mHandlingLayoutInLayoutRequest = false; 2042 } 2043 mLayoutRequesters.clear(); 2044 } 2045 } finally { 2046 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2047 } 2048 mInLayout = false; 2049 } 2050 2051 public void requestTransparentRegion(View child) { 2052 // the test below should not fail unless someone is messing with us 2053 checkThread(); 2054 if (mView == child) { 2055 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2056 // Need to make sure we re-evaluate the window attributes next 2057 // time around, to ensure the window has the correct format. 2058 mWindowAttributesChanged = true; 2059 mWindowAttributesChangesFlag = 0; 2060 requestLayout(); 2061 } 2062 } 2063 2064 /** 2065 * Figures out the measure spec for the root view in a window based on it's 2066 * layout params. 2067 * 2068 * @param windowSize 2069 * The available width or height of the window 2070 * 2071 * @param rootDimension 2072 * The layout params for one dimension (width or height) of the 2073 * window. 2074 * 2075 * @return The measure spec to use to measure the root view. 2076 */ 2077 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2078 int measureSpec; 2079 switch (rootDimension) { 2080 2081 case ViewGroup.LayoutParams.MATCH_PARENT: 2082 // Window can't resize. Force root view to be windowSize. 2083 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2084 break; 2085 case ViewGroup.LayoutParams.WRAP_CONTENT: 2086 // Window can resize. Set max size for root view. 2087 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2088 break; 2089 default: 2090 // Window wants to be an exact size. Force root view to be that size. 2091 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2092 break; 2093 } 2094 return measureSpec; 2095 } 2096 2097 int mHardwareYOffset; 2098 int mResizeAlpha; 2099 final Paint mResizePaint = new Paint(); 2100 2101 public void onHardwarePreDraw(HardwareCanvas canvas) { 2102 canvas.translate(0, -mHardwareYOffset); 2103 } 2104 2105 public void onHardwarePostDraw(HardwareCanvas canvas) { 2106 if (mResizeBuffer != null) { 2107 mResizePaint.setAlpha(mResizeAlpha); 2108 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2109 } 2110 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2111 } 2112 2113 /** 2114 * @hide 2115 */ 2116 void outputDisplayList(View view) { 2117 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2118 DisplayList displayList = view.getDisplayList(); 2119 if (displayList != null) { 2120 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2121 } 2122 } 2123 } 2124 2125 /** 2126 * @see #PROPERTY_PROFILE_RENDERING 2127 */ 2128 private void profileRendering(boolean enabled) { 2129 if (mProfileRendering) { 2130 mRenderProfilingEnabled = enabled; 2131 2132 if (mRenderProfiler != null) { 2133 mChoreographer.removeFrameCallback(mRenderProfiler); 2134 } 2135 if (mRenderProfilingEnabled) { 2136 if (mRenderProfiler == null) { 2137 mRenderProfiler = new Choreographer.FrameCallback() { 2138 @Override 2139 public void doFrame(long frameTimeNanos) { 2140 mDirty.set(0, 0, mWidth, mHeight); 2141 scheduleTraversals(); 2142 if (mRenderProfilingEnabled) { 2143 mChoreographer.postFrameCallback(mRenderProfiler); 2144 } 2145 } 2146 }; 2147 } 2148 mChoreographer.postFrameCallback(mRenderProfiler); 2149 } else { 2150 mRenderProfiler = null; 2151 } 2152 } 2153 } 2154 2155 /** 2156 * Called from draw() when DEBUG_FPS is enabled 2157 */ 2158 private void trackFPS() { 2159 // Tracks frames per second drawn. First value in a series of draws may be bogus 2160 // because it down not account for the intervening idle time 2161 long nowTime = System.currentTimeMillis(); 2162 if (mFpsStartTime < 0) { 2163 mFpsStartTime = mFpsPrevTime = nowTime; 2164 mFpsNumFrames = 0; 2165 } else { 2166 ++mFpsNumFrames; 2167 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2168 long frameTime = nowTime - mFpsPrevTime; 2169 long totalTime = nowTime - mFpsStartTime; 2170 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2171 mFpsPrevTime = nowTime; 2172 if (totalTime > 1000) { 2173 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2174 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2175 mFpsStartTime = nowTime; 2176 mFpsNumFrames = 0; 2177 } 2178 } 2179 } 2180 2181 private void performDraw() { 2182 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2183 return; 2184 } 2185 2186 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2187 mFullRedrawNeeded = false; 2188 2189 mIsDrawing = true; 2190 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2191 try { 2192 draw(fullRedrawNeeded); 2193 } finally { 2194 mIsDrawing = false; 2195 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2196 } 2197 2198 if (mReportNextDraw) { 2199 mReportNextDraw = false; 2200 2201 if (LOCAL_LOGV) { 2202 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2203 } 2204 if (mSurfaceHolder != null && mSurface.isValid()) { 2205 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2206 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2207 if (callbacks != null) { 2208 for (SurfaceHolder.Callback c : callbacks) { 2209 if (c instanceof SurfaceHolder.Callback2) { 2210 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2211 mSurfaceHolder); 2212 } 2213 } 2214 } 2215 } 2216 try { 2217 mWindowSession.finishDrawing(mWindow); 2218 } catch (RemoteException e) { 2219 } 2220 } 2221 } 2222 2223 private void draw(boolean fullRedrawNeeded) { 2224 Surface surface = mSurface; 2225 if (!surface.isValid()) { 2226 return; 2227 } 2228 2229 if (DEBUG_FPS) { 2230 trackFPS(); 2231 } 2232 2233 if (!sFirstDrawComplete) { 2234 synchronized (sFirstDrawHandlers) { 2235 sFirstDrawComplete = true; 2236 final int count = sFirstDrawHandlers.size(); 2237 for (int i = 0; i< count; i++) { 2238 mHandler.post(sFirstDrawHandlers.get(i)); 2239 } 2240 } 2241 } 2242 2243 scrollToRectOrFocus(null, false); 2244 2245 final AttachInfo attachInfo = mAttachInfo; 2246 if (attachInfo.mViewScrollChanged) { 2247 attachInfo.mViewScrollChanged = false; 2248 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2249 } 2250 2251 int yoff; 2252 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2253 if (animating) { 2254 yoff = mScroller.getCurrY(); 2255 } else { 2256 yoff = mScrollY; 2257 } 2258 if (mCurScrollY != yoff) { 2259 mCurScrollY = yoff; 2260 fullRedrawNeeded = true; 2261 } 2262 2263 final float appScale = attachInfo.mApplicationScale; 2264 final boolean scalingRequired = attachInfo.mScalingRequired; 2265 2266 int resizeAlpha = 0; 2267 if (mResizeBuffer != null) { 2268 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2269 if (deltaTime < mResizeBufferDuration) { 2270 float amt = deltaTime/(float) mResizeBufferDuration; 2271 amt = mResizeInterpolator.getInterpolation(amt); 2272 animating = true; 2273 resizeAlpha = 255 - (int)(amt*255); 2274 } else { 2275 disposeResizeBuffer(); 2276 } 2277 } 2278 2279 final Rect dirty = mDirty; 2280 if (mSurfaceHolder != null) { 2281 // The app owns the surface, we won't draw. 2282 dirty.setEmpty(); 2283 if (animating) { 2284 if (mScroller != null) { 2285 mScroller.abortAnimation(); 2286 } 2287 disposeResizeBuffer(); 2288 } 2289 return; 2290 } 2291 2292 if (fullRedrawNeeded) { 2293 attachInfo.mIgnoreDirtyState = true; 2294 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2295 } 2296 2297 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2298 Log.v(TAG, "Draw " + mView + "/" 2299 + mWindowAttributes.getTitle() 2300 + ": dirty={" + dirty.left + "," + dirty.top 2301 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2302 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2303 appScale + ", width=" + mWidth + ", height=" + mHeight); 2304 } 2305 2306 invalidateDisplayLists(); 2307 2308 attachInfo.mTreeObserver.dispatchOnDraw(); 2309 2310 if (!dirty.isEmpty() || mIsAnimating) { 2311 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2312 // Draw with hardware renderer. 2313 mIsAnimating = false; 2314 mHardwareYOffset = yoff; 2315 mResizeAlpha = resizeAlpha; 2316 2317 mCurrentDirty.set(dirty); 2318 mCurrentDirty.union(mPreviousDirty); 2319 mPreviousDirty.set(dirty); 2320 dirty.setEmpty(); 2321 2322 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2323 animating ? null : mCurrentDirty)) { 2324 mPreviousDirty.set(0, 0, mWidth, mHeight); 2325 } 2326 } else { 2327 // If we get here with a disabled & requested hardware renderer, something went 2328 // wrong (an invalidate posted right before we destroyed the hardware surface 2329 // for instance) so we should just bail out. Locking the surface with software 2330 // rendering at this point would lock it forever and prevent hardware renderer 2331 // from doing its job when it comes back. 2332 // Before we request a new frame we must however attempt to reinitiliaze the 2333 // hardware renderer if it's in requested state. This would happen after an 2334 // eglTerminate() for instance. 2335 if (attachInfo.mHardwareRenderer != null && 2336 !attachInfo.mHardwareRenderer.isEnabled() && 2337 attachInfo.mHardwareRenderer.isRequested()) { 2338 2339 try { 2340 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2341 mHolder.getSurface()); 2342 } catch (Surface.OutOfResourcesException e) { 2343 handleOutOfResourcesException(e); 2344 return; 2345 } 2346 2347 mFullRedrawNeeded = true; 2348 scheduleTraversals(); 2349 return; 2350 } 2351 2352 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2353 return; 2354 } 2355 } 2356 } 2357 2358 if (animating) { 2359 mFullRedrawNeeded = true; 2360 scheduleTraversals(); 2361 } 2362 } 2363 2364 /** 2365 * @return true if drawing was succesfull, false if an error occurred 2366 */ 2367 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2368 boolean scalingRequired, Rect dirty) { 2369 2370 // Draw with software renderer. 2371 Canvas canvas; 2372 try { 2373 int left = dirty.left; 2374 int top = dirty.top; 2375 int right = dirty.right; 2376 int bottom = dirty.bottom; 2377 2378 canvas = mSurface.lockCanvas(dirty); 2379 2380 if (left != dirty.left || top != dirty.top || right != dirty.right || 2381 bottom != dirty.bottom) { 2382 attachInfo.mIgnoreDirtyState = true; 2383 } 2384 2385 // TODO: Do this in native 2386 canvas.setDensity(mDensity); 2387 } catch (Surface.OutOfResourcesException e) { 2388 handleOutOfResourcesException(e); 2389 return false; 2390 } catch (IllegalArgumentException e) { 2391 Log.e(TAG, "Could not lock surface", e); 2392 // Don't assume this is due to out of memory, it could be 2393 // something else, and if it is something else then we could 2394 // kill stuff (or ourself) for no reason. 2395 mLayoutRequested = true; // ask wm for a new surface next time. 2396 return false; 2397 } 2398 2399 try { 2400 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2401 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2402 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2403 //canvas.drawARGB(255, 255, 0, 0); 2404 } 2405 2406 // If this bitmap's format includes an alpha channel, we 2407 // need to clear it before drawing so that the child will 2408 // properly re-composite its drawing on a transparent 2409 // background. This automatically respects the clip/dirty region 2410 // or 2411 // If we are applying an offset, we need to clear the area 2412 // where the offset doesn't appear to avoid having garbage 2413 // left in the blank areas. 2414 if (!canvas.isOpaque() || yoff != 0) { 2415 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2416 } 2417 2418 dirty.setEmpty(); 2419 mIsAnimating = false; 2420 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2421 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2422 2423 if (DEBUG_DRAW) { 2424 Context cxt = mView.getContext(); 2425 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2426 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2427 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2428 } 2429 try { 2430 canvas.translate(0, -yoff); 2431 if (mTranslator != null) { 2432 mTranslator.translateCanvas(canvas); 2433 } 2434 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2435 attachInfo.mSetIgnoreDirtyState = false; 2436 2437 mView.draw(canvas); 2438 2439 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2440 } finally { 2441 if (!attachInfo.mSetIgnoreDirtyState) { 2442 // Only clear the flag if it was not set during the mView.draw() call 2443 attachInfo.mIgnoreDirtyState = false; 2444 } 2445 } 2446 } finally { 2447 try { 2448 surface.unlockCanvasAndPost(canvas); 2449 } catch (IllegalArgumentException e) { 2450 Log.e(TAG, "Could not unlock surface", e); 2451 mLayoutRequested = true; // ask wm for a new surface next time. 2452 //noinspection ReturnInsideFinallyBlock 2453 return false; 2454 } 2455 2456 if (LOCAL_LOGV) { 2457 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2458 } 2459 } 2460 return true; 2461 } 2462 2463 /** 2464 * We want to draw a highlight around the current accessibility focused. 2465 * Since adding a style for all possible view is not a viable option we 2466 * have this specialized drawing method. 2467 * 2468 * Note: We are doing this here to be able to draw the highlight for 2469 * virtual views in addition to real ones. 2470 * 2471 * @param canvas The canvas on which to draw. 2472 */ 2473 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2474 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2475 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2476 return; 2477 } 2478 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2479 return; 2480 } 2481 Drawable drawable = getAccessibilityFocusedDrawable(); 2482 if (drawable == null) { 2483 return; 2484 } 2485 AccessibilityNodeProvider provider = 2486 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2487 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2488 if (provider == null) { 2489 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2490 } else { 2491 if (mAccessibilityFocusedVirtualView == null) { 2492 return; 2493 } 2494 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2495 } 2496 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2497 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2498 drawable.setBounds(bounds); 2499 drawable.draw(canvas); 2500 } 2501 2502 private Drawable getAccessibilityFocusedDrawable() { 2503 if (mAttachInfo != null) { 2504 // Lazily load the accessibility focus drawable. 2505 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2506 TypedValue value = new TypedValue(); 2507 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2508 R.attr.accessibilityFocusedDrawable, value, true); 2509 if (resolved) { 2510 mAttachInfo.mAccessibilityFocusDrawable = 2511 mView.mContext.getResources().getDrawable(value.resourceId); 2512 } 2513 } 2514 return mAttachInfo.mAccessibilityFocusDrawable; 2515 } 2516 return null; 2517 } 2518 2519 void invalidateDisplayLists() { 2520 final ArrayList<DisplayList> displayLists = mDisplayLists; 2521 final int count = displayLists.size(); 2522 2523 for (int i = 0; i < count; i++) { 2524 final DisplayList displayList = displayLists.get(i); 2525 if (displayList.isDirty()) { 2526 displayList.clear(); 2527 } 2528 } 2529 2530 displayLists.clear(); 2531 } 2532 2533 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2534 final View.AttachInfo attachInfo = mAttachInfo; 2535 final Rect ci = attachInfo.mContentInsets; 2536 final Rect vi = attachInfo.mVisibleInsets; 2537 int scrollY = 0; 2538 boolean handled = false; 2539 2540 if (vi.left > ci.left || vi.top > ci.top 2541 || vi.right > ci.right || vi.bottom > ci.bottom) { 2542 // We'll assume that we aren't going to change the scroll 2543 // offset, since we want to avoid that unless it is actually 2544 // going to make the focus visible... otherwise we scroll 2545 // all over the place. 2546 scrollY = mScrollY; 2547 // We can be called for two different situations: during a draw, 2548 // to update the scroll position if the focus has changed (in which 2549 // case 'rectangle' is null), or in response to a 2550 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2551 // is non-null and we just want to scroll to whatever that 2552 // rectangle is). 2553 View focus = mView.findFocus(); 2554 if (focus == null) { 2555 return false; 2556 } 2557 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2558 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2559 // If the focus has changed, then ignore any requests to scroll 2560 // to a rectangle; first we want to make sure the entire focus 2561 // view is visible. 2562 rectangle = null; 2563 } 2564 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2565 + " rectangle=" + rectangle + " ci=" + ci 2566 + " vi=" + vi); 2567 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2568 // Optimization: if the focus hasn't changed since last 2569 // time, and no layout has happened, then just leave things 2570 // as they are. 2571 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2572 + mScrollY + " vi=" + vi.toShortString()); 2573 } else if (focus != null) { 2574 // We need to determine if the currently focused view is 2575 // within the visible part of the window and, if not, apply 2576 // a pan so it can be seen. 2577 mLastScrolledFocus = new WeakReference<View>(focus); 2578 mScrollMayChange = false; 2579 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2580 // Try to find the rectangle from the focus view. 2581 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2582 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2583 + mView.getWidth() + " h=" + mView.getHeight() 2584 + " ci=" + ci.toShortString() 2585 + " vi=" + vi.toShortString()); 2586 if (rectangle == null) { 2587 focus.getFocusedRect(mTempRect); 2588 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2589 + ": focusRect=" + mTempRect.toShortString()); 2590 if (mView instanceof ViewGroup) { 2591 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2592 focus, mTempRect); 2593 } 2594 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2595 "Focus in window: focusRect=" 2596 + mTempRect.toShortString() 2597 + " visRect=" + mVisRect.toShortString()); 2598 } else { 2599 mTempRect.set(rectangle); 2600 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2601 "Request scroll to rect: " 2602 + mTempRect.toShortString() 2603 + " visRect=" + mVisRect.toShortString()); 2604 } 2605 if (mTempRect.intersect(mVisRect)) { 2606 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2607 "Focus window visible rect: " 2608 + mTempRect.toShortString()); 2609 if (mTempRect.height() > 2610 (mView.getHeight()-vi.top-vi.bottom)) { 2611 // If the focus simply is not going to fit, then 2612 // best is probably just to leave things as-is. 2613 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2614 "Too tall; leaving scrollY=" + scrollY); 2615 } else if ((mTempRect.top-scrollY) < vi.top) { 2616 scrollY -= vi.top - (mTempRect.top-scrollY); 2617 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2618 "Top covered; scrollY=" + scrollY); 2619 } else if ((mTempRect.bottom-scrollY) 2620 > (mView.getHeight()-vi.bottom)) { 2621 scrollY += (mTempRect.bottom-scrollY) 2622 - (mView.getHeight()-vi.bottom); 2623 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2624 "Bottom covered; scrollY=" + scrollY); 2625 } 2626 handled = true; 2627 } 2628 } 2629 } 2630 } 2631 2632 if (scrollY != mScrollY) { 2633 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2634 + mScrollY + " , new=" + scrollY); 2635 if (!immediate && mResizeBuffer == null) { 2636 if (mScroller == null) { 2637 mScroller = new Scroller(mView.getContext()); 2638 } 2639 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2640 } else if (mScroller != null) { 2641 mScroller.abortAnimation(); 2642 } 2643 mScrollY = scrollY; 2644 } 2645 2646 return handled; 2647 } 2648 2649 /** 2650 * @hide 2651 */ 2652 public View getAccessibilityFocusedHost() { 2653 return mAccessibilityFocusedHost; 2654 } 2655 2656 /** 2657 * @hide 2658 */ 2659 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2660 return mAccessibilityFocusedVirtualView; 2661 } 2662 2663 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2664 // If we have a virtual view with accessibility focus we need 2665 // to clear the focus and invalidate the virtual view bounds. 2666 if (mAccessibilityFocusedVirtualView != null) { 2667 2668 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2669 View focusHost = mAccessibilityFocusedHost; 2670 focusHost.clearAccessibilityFocusNoCallbacks(); 2671 2672 // Wipe the state of the current accessibility focus since 2673 // the call into the provider to clear accessibility focus 2674 // will fire an accessibility event which will end up calling 2675 // this method and we want to have clean state when this 2676 // invocation happens. 2677 mAccessibilityFocusedHost = null; 2678 mAccessibilityFocusedVirtualView = null; 2679 2680 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2681 if (provider != null) { 2682 // Invalidate the area of the cleared accessibility focus. 2683 focusNode.getBoundsInParent(mTempRect); 2684 focusHost.invalidate(mTempRect); 2685 // Clear accessibility focus in the virtual node. 2686 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2687 focusNode.getSourceNodeId()); 2688 provider.performAction(virtualNodeId, 2689 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2690 } 2691 focusNode.recycle(); 2692 } 2693 if (mAccessibilityFocusedHost != null) { 2694 // Clear accessibility focus in the view. 2695 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2696 } 2697 2698 // Set the new focus host and node. 2699 mAccessibilityFocusedHost = view; 2700 mAccessibilityFocusedVirtualView = node; 2701 } 2702 2703 public void requestChildFocus(View child, View focused) { 2704 if (DEBUG_INPUT_RESIZE) { 2705 Log.v(TAG, "Request child focus: focus now " + focused); 2706 } 2707 checkThread(); 2708 scheduleTraversals(); 2709 } 2710 2711 public void clearChildFocus(View child) { 2712 if (DEBUG_INPUT_RESIZE) { 2713 Log.v(TAG, "Clearing child focus"); 2714 } 2715 checkThread(); 2716 scheduleTraversals(); 2717 } 2718 2719 @Override 2720 public ViewParent getParentForAccessibility() { 2721 return null; 2722 } 2723 2724 public void focusableViewAvailable(View v) { 2725 checkThread(); 2726 if (mView != null) { 2727 if (!mView.hasFocus()) { 2728 v.requestFocus(); 2729 } else { 2730 // the one case where will transfer focus away from the current one 2731 // is if the current view is a view group that prefers to give focus 2732 // to its children first AND the view is a descendant of it. 2733 View focused = mView.findFocus(); 2734 if (focused instanceof ViewGroup) { 2735 ViewGroup group = (ViewGroup) focused; 2736 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2737 && isViewDescendantOf(v, focused)) { 2738 v.requestFocus(); 2739 } 2740 } 2741 } 2742 } 2743 } 2744 2745 public void recomputeViewAttributes(View child) { 2746 checkThread(); 2747 if (mView == child) { 2748 mAttachInfo.mRecomputeGlobalAttributes = true; 2749 if (!mWillDrawSoon) { 2750 scheduleTraversals(); 2751 } 2752 } 2753 } 2754 2755 void dispatchDetachedFromWindow() { 2756 if (mView != null && mView.mAttachInfo != null) { 2757 if (mAttachInfo.mHardwareRenderer != null && 2758 mAttachInfo.mHardwareRenderer.isEnabled()) { 2759 mAttachInfo.mHardwareRenderer.validate(); 2760 } 2761 mView.dispatchDetachedFromWindow(); 2762 } 2763 2764 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2765 mAccessibilityManager.removeAccessibilityStateChangeListener( 2766 mAccessibilityInteractionConnectionManager); 2767 removeSendWindowContentChangedCallback(); 2768 2769 destroyHardwareRenderer(); 2770 2771 setAccessibilityFocus(null, null); 2772 2773 mView = null; 2774 mAttachInfo.mRootView = null; 2775 mAttachInfo.mSurface = null; 2776 2777 mSurface.release(); 2778 2779 if (mInputQueueCallback != null && mInputQueue != null) { 2780 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2781 mInputQueueCallback = null; 2782 mInputQueue = null; 2783 } else if (mInputEventReceiver != null) { 2784 mInputEventReceiver.dispose(); 2785 mInputEventReceiver = null; 2786 } 2787 try { 2788 mWindowSession.remove(mWindow); 2789 } catch (RemoteException e) { 2790 } 2791 2792 // Dispose the input channel after removing the window so the Window Manager 2793 // doesn't interpret the input channel being closed as an abnormal termination. 2794 if (mInputChannel != null) { 2795 mInputChannel.dispose(); 2796 mInputChannel = null; 2797 } 2798 2799 unscheduleTraversals(); 2800 } 2801 2802 void updateConfiguration(Configuration config, boolean force) { 2803 if (DEBUG_CONFIGURATION) Log.v(TAG, 2804 "Applying new config to window " 2805 + mWindowAttributes.getTitle() 2806 + ": " + config); 2807 2808 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2809 if (ci != null) { 2810 config = new Configuration(config); 2811 ci.applyToConfiguration(mNoncompatDensity, config); 2812 } 2813 2814 synchronized (sConfigCallbacks) { 2815 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2816 sConfigCallbacks.get(i).onConfigurationChanged(config); 2817 } 2818 } 2819 if (mView != null) { 2820 // At this point the resources have been updated to 2821 // have the most recent config, whatever that is. Use 2822 // the one in them which may be newer. 2823 config = mView.getResources().getConfiguration(); 2824 if (force || mLastConfiguration.diff(config) != 0) { 2825 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2826 final int currentLayoutDirection = config.getLayoutDirection(); 2827 mLastConfiguration.setTo(config); 2828 if (lastLayoutDirection != currentLayoutDirection && 2829 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2830 mView.setLayoutDirection(currentLayoutDirection); 2831 } 2832 mView.dispatchConfigurationChanged(config); 2833 } 2834 } 2835 } 2836 2837 /** 2838 * Return true if child is an ancestor of parent, (or equal to the parent). 2839 */ 2840 public static boolean isViewDescendantOf(View child, View parent) { 2841 if (child == parent) { 2842 return true; 2843 } 2844 2845 final ViewParent theParent = child.getParent(); 2846 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2847 } 2848 2849 private static void forceLayout(View view) { 2850 view.forceLayout(); 2851 if (view instanceof ViewGroup) { 2852 ViewGroup group = (ViewGroup) view; 2853 final int count = group.getChildCount(); 2854 for (int i = 0; i < count; i++) { 2855 forceLayout(group.getChildAt(i)); 2856 } 2857 } 2858 } 2859 2860 private final static int MSG_INVALIDATE = 1; 2861 private final static int MSG_INVALIDATE_RECT = 2; 2862 private final static int MSG_DIE = 3; 2863 private final static int MSG_RESIZED = 4; 2864 private final static int MSG_RESIZED_REPORT = 5; 2865 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2866 private final static int MSG_DISPATCH_KEY = 7; 2867 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2868 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2869 private final static int MSG_IME_FINISHED_EVENT = 10; 2870 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2871 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2872 private final static int MSG_CHECK_FOCUS = 13; 2873 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2874 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2875 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2876 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2877 private final static int MSG_UPDATE_CONFIGURATION = 18; 2878 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2879 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2880 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2881 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2882 private final static int MSG_INVALIDATE_WORLD = 23; 2883 private final static int MSG_WINDOW_MOVED = 24; 2884 2885 final class ViewRootHandler extends Handler { 2886 @Override 2887 public String getMessageName(Message message) { 2888 switch (message.what) { 2889 case MSG_INVALIDATE: 2890 return "MSG_INVALIDATE"; 2891 case MSG_INVALIDATE_RECT: 2892 return "MSG_INVALIDATE_RECT"; 2893 case MSG_DIE: 2894 return "MSG_DIE"; 2895 case MSG_RESIZED: 2896 return "MSG_RESIZED"; 2897 case MSG_RESIZED_REPORT: 2898 return "MSG_RESIZED_REPORT"; 2899 case MSG_WINDOW_FOCUS_CHANGED: 2900 return "MSG_WINDOW_FOCUS_CHANGED"; 2901 case MSG_DISPATCH_KEY: 2902 return "MSG_DISPATCH_KEY"; 2903 case MSG_DISPATCH_APP_VISIBILITY: 2904 return "MSG_DISPATCH_APP_VISIBILITY"; 2905 case MSG_DISPATCH_GET_NEW_SURFACE: 2906 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2907 case MSG_IME_FINISHED_EVENT: 2908 return "MSG_IME_FINISHED_EVENT"; 2909 case MSG_DISPATCH_KEY_FROM_IME: 2910 return "MSG_DISPATCH_KEY_FROM_IME"; 2911 case MSG_FINISH_INPUT_CONNECTION: 2912 return "MSG_FINISH_INPUT_CONNECTION"; 2913 case MSG_CHECK_FOCUS: 2914 return "MSG_CHECK_FOCUS"; 2915 case MSG_CLOSE_SYSTEM_DIALOGS: 2916 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2917 case MSG_DISPATCH_DRAG_EVENT: 2918 return "MSG_DISPATCH_DRAG_EVENT"; 2919 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2920 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2921 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2922 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2923 case MSG_UPDATE_CONFIGURATION: 2924 return "MSG_UPDATE_CONFIGURATION"; 2925 case MSG_PROCESS_INPUT_EVENTS: 2926 return "MSG_PROCESS_INPUT_EVENTS"; 2927 case MSG_DISPATCH_SCREEN_STATE: 2928 return "MSG_DISPATCH_SCREEN_STATE"; 2929 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2930 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2931 case MSG_DISPATCH_DONE_ANIMATING: 2932 return "MSG_DISPATCH_DONE_ANIMATING"; 2933 case MSG_WINDOW_MOVED: 2934 return "MSG_WINDOW_MOVED"; 2935 } 2936 return super.getMessageName(message); 2937 } 2938 2939 @Override 2940 public void handleMessage(Message msg) { 2941 switch (msg.what) { 2942 case MSG_INVALIDATE: 2943 ((View) msg.obj).invalidate(); 2944 break; 2945 case MSG_INVALIDATE_RECT: 2946 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2947 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2948 info.recycle(); 2949 break; 2950 case MSG_IME_FINISHED_EVENT: 2951 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2952 break; 2953 case MSG_PROCESS_INPUT_EVENTS: 2954 mProcessInputEventsScheduled = false; 2955 doProcessInputEvents(); 2956 break; 2957 case MSG_DISPATCH_APP_VISIBILITY: 2958 handleAppVisibility(msg.arg1 != 0); 2959 break; 2960 case MSG_DISPATCH_GET_NEW_SURFACE: 2961 handleGetNewSurface(); 2962 break; 2963 case MSG_RESIZED: { 2964 // Recycled in the fall through... 2965 SomeArgs args = (SomeArgs) msg.obj; 2966 if (mWinFrame.equals(args.arg1) 2967 && mPendingOverscanInsets.equals(args.arg5) 2968 && mPendingContentInsets.equals(args.arg2) 2969 && mPendingVisibleInsets.equals(args.arg3) 2970 && args.arg4 == null) { 2971 break; 2972 } 2973 } // fall through... 2974 case MSG_RESIZED_REPORT: 2975 if (mAdded) { 2976 SomeArgs args = (SomeArgs) msg.obj; 2977 2978 Configuration config = (Configuration) args.arg4; 2979 if (config != null) { 2980 updateConfiguration(config, false); 2981 } 2982 2983 mWinFrame.set((Rect) args.arg1); 2984 mPendingOverscanInsets.set((Rect) args.arg5); 2985 mPendingContentInsets.set((Rect) args.arg2); 2986 mPendingVisibleInsets.set((Rect) args.arg3); 2987 2988 args.recycle(); 2989 2990 if (msg.what == MSG_RESIZED_REPORT) { 2991 mReportNextDraw = true; 2992 } 2993 2994 if (mView != null) { 2995 forceLayout(mView); 2996 } 2997 2998 requestLayout(); 2999 } 3000 break; 3001 case MSG_WINDOW_MOVED: 3002 if (mAdded) { 3003 final int w = mWinFrame.width(); 3004 final int h = mWinFrame.height(); 3005 final int l = msg.arg1; 3006 final int t = msg.arg2; 3007 mWinFrame.left = l; 3008 mWinFrame.right = l + w; 3009 mWinFrame.top = t; 3010 mWinFrame.bottom = t + h; 3011 3012 if (mView != null) { 3013 forceLayout(mView); 3014 } 3015 requestLayout(); 3016 } 3017 break; 3018 case MSG_WINDOW_FOCUS_CHANGED: { 3019 if (mAdded) { 3020 boolean hasWindowFocus = msg.arg1 != 0; 3021 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3022 3023 profileRendering(hasWindowFocus); 3024 3025 if (hasWindowFocus) { 3026 boolean inTouchMode = msg.arg2 != 0; 3027 ensureTouchModeLocally(inTouchMode); 3028 3029 if (mAttachInfo.mHardwareRenderer != null && 3030 mSurface != null && mSurface.isValid()) { 3031 mFullRedrawNeeded = true; 3032 try { 3033 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3034 mWidth, mHeight, mHolder.getSurface()); 3035 } catch (Surface.OutOfResourcesException e) { 3036 Log.e(TAG, "OutOfResourcesException locking surface", e); 3037 try { 3038 if (!mWindowSession.outOfMemory(mWindow)) { 3039 Slog.w(TAG, "No processes killed for memory; killing self"); 3040 Process.killProcess(Process.myPid()); 3041 } 3042 } catch (RemoteException ex) { 3043 } 3044 // Retry in a bit. 3045 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3046 return; 3047 } 3048 } 3049 } 3050 3051 mLastWasImTarget = WindowManager.LayoutParams 3052 .mayUseInputMethod(mWindowAttributes.flags); 3053 3054 InputMethodManager imm = InputMethodManager.peekInstance(); 3055 if (mView != null) { 3056 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3057 imm.startGettingWindowFocus(mView); 3058 } 3059 mAttachInfo.mKeyDispatchState.reset(); 3060 mView.dispatchWindowFocusChanged(hasWindowFocus); 3061 } 3062 3063 // Note: must be done after the focus change callbacks, 3064 // so all of the view state is set up correctly. 3065 if (hasWindowFocus) { 3066 if (imm != null && mLastWasImTarget) { 3067 imm.onWindowFocus(mView, mView.findFocus(), 3068 mWindowAttributes.softInputMode, 3069 !mHasHadWindowFocus, mWindowAttributes.flags); 3070 } 3071 // Clear the forward bit. We can just do this directly, since 3072 // the window manager doesn't care about it. 3073 mWindowAttributes.softInputMode &= 3074 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3075 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3076 .softInputMode &= 3077 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3078 mHasHadWindowFocus = true; 3079 } 3080 3081 setAccessibilityFocus(null, null); 3082 3083 if (mView != null && mAccessibilityManager.isEnabled()) { 3084 if (hasWindowFocus) { 3085 mView.sendAccessibilityEvent( 3086 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3087 } 3088 } 3089 } 3090 } break; 3091 case MSG_DIE: 3092 doDie(); 3093 break; 3094 case MSG_DISPATCH_KEY: { 3095 KeyEvent event = (KeyEvent)msg.obj; 3096 enqueueInputEvent(event, null, 0, true); 3097 } break; 3098 case MSG_DISPATCH_KEY_FROM_IME: { 3099 if (LOCAL_LOGV) Log.v( 3100 TAG, "Dispatching key " 3101 + msg.obj + " from IME to " + mView); 3102 KeyEvent event = (KeyEvent)msg.obj; 3103 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3104 // The IME is trying to say this event is from the 3105 // system! Bad bad bad! 3106 //noinspection UnusedAssignment 3107 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3108 } 3109 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3110 } break; 3111 case MSG_FINISH_INPUT_CONNECTION: { 3112 InputMethodManager imm = InputMethodManager.peekInstance(); 3113 if (imm != null) { 3114 imm.reportFinishInputConnection((InputConnection)msg.obj); 3115 } 3116 } break; 3117 case MSG_CHECK_FOCUS: { 3118 InputMethodManager imm = InputMethodManager.peekInstance(); 3119 if (imm != null) { 3120 imm.checkFocus(); 3121 } 3122 } break; 3123 case MSG_CLOSE_SYSTEM_DIALOGS: { 3124 if (mView != null) { 3125 mView.onCloseSystemDialogs((String)msg.obj); 3126 } 3127 } break; 3128 case MSG_DISPATCH_DRAG_EVENT: 3129 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3130 DragEvent event = (DragEvent)msg.obj; 3131 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3132 handleDragEvent(event); 3133 } break; 3134 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3135 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3136 } break; 3137 case MSG_UPDATE_CONFIGURATION: { 3138 Configuration config = (Configuration)msg.obj; 3139 if (config.isOtherSeqNewer(mLastConfiguration)) { 3140 config = mLastConfiguration; 3141 } 3142 updateConfiguration(config, false); 3143 } break; 3144 case MSG_DISPATCH_SCREEN_STATE: { 3145 if (mView != null) { 3146 handleScreenStateChange(msg.arg1 == 1); 3147 } 3148 } break; 3149 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3150 setAccessibilityFocus(null, null); 3151 } break; 3152 case MSG_DISPATCH_DONE_ANIMATING: { 3153 handleDispatchDoneAnimating(); 3154 } break; 3155 case MSG_INVALIDATE_WORLD: { 3156 if (mView != null) { 3157 invalidateWorld(mView); 3158 } 3159 } break; 3160 } 3161 } 3162 } 3163 3164 final ViewRootHandler mHandler = new ViewRootHandler(); 3165 3166 /** 3167 * Something in the current window tells us we need to change the touch mode. For 3168 * example, we are not in touch mode, and the user touches the screen. 3169 * 3170 * If the touch mode has changed, tell the window manager, and handle it locally. 3171 * 3172 * @param inTouchMode Whether we want to be in touch mode. 3173 * @return True if the touch mode changed and focus changed was changed as a result 3174 */ 3175 boolean ensureTouchMode(boolean inTouchMode) { 3176 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3177 + "touch mode is " + mAttachInfo.mInTouchMode); 3178 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3179 3180 // tell the window manager 3181 try { 3182 mWindowSession.setInTouchMode(inTouchMode); 3183 } catch (RemoteException e) { 3184 throw new RuntimeException(e); 3185 } 3186 3187 // handle the change 3188 return ensureTouchModeLocally(inTouchMode); 3189 } 3190 3191 /** 3192 * Ensure that the touch mode for this window is set, and if it is changing, 3193 * take the appropriate action. 3194 * @param inTouchMode Whether we want to be in touch mode. 3195 * @return True if the touch mode changed and focus changed was changed as a result 3196 */ 3197 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3198 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3199 + "touch mode is " + mAttachInfo.mInTouchMode); 3200 3201 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3202 3203 mAttachInfo.mInTouchMode = inTouchMode; 3204 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3205 3206 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3207 } 3208 3209 private boolean enterTouchMode() { 3210 if (mView != null) { 3211 if (mView.hasFocus()) { 3212 // note: not relying on mFocusedView here because this could 3213 // be when the window is first being added, and mFocused isn't 3214 // set yet. 3215 final View focused = mView.findFocus(); 3216 if (focused != null && !focused.isFocusableInTouchMode()) { 3217 final ViewGroup ancestorToTakeFocus = 3218 findAncestorToTakeFocusInTouchMode(focused); 3219 if (ancestorToTakeFocus != null) { 3220 // there is an ancestor that wants focus after its descendants that 3221 // is focusable in touch mode.. give it focus 3222 return ancestorToTakeFocus.requestFocus(); 3223 } else { 3224 // nothing appropriate to have focus in touch mode, clear it out 3225 focused.unFocus(); 3226 return true; 3227 } 3228 } 3229 } 3230 } 3231 return false; 3232 } 3233 3234 /** 3235 * Find an ancestor of focused that wants focus after its descendants and is 3236 * focusable in touch mode. 3237 * @param focused The currently focused view. 3238 * @return An appropriate view, or null if no such view exists. 3239 */ 3240 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3241 ViewParent parent = focused.getParent(); 3242 while (parent instanceof ViewGroup) { 3243 final ViewGroup vgParent = (ViewGroup) parent; 3244 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3245 && vgParent.isFocusableInTouchMode()) { 3246 return vgParent; 3247 } 3248 if (vgParent.isRootNamespace()) { 3249 return null; 3250 } else { 3251 parent = vgParent.getParent(); 3252 } 3253 } 3254 return null; 3255 } 3256 3257 private boolean leaveTouchMode() { 3258 if (mView != null) { 3259 if (mView.hasFocus()) { 3260 View focusedView = mView.findFocus(); 3261 if (!(focusedView instanceof ViewGroup)) { 3262 // some view has focus, let it keep it 3263 return false; 3264 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3265 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3266 // some view group has focus, and doesn't prefer its children 3267 // over itself for focus, so let them keep it. 3268 return false; 3269 } 3270 } 3271 3272 // find the best view to give focus to in this brave new non-touch-mode 3273 // world 3274 final View focused = focusSearch(null, View.FOCUS_DOWN); 3275 if (focused != null) { 3276 return focused.requestFocus(View.FOCUS_DOWN); 3277 } 3278 } 3279 return false; 3280 } 3281 3282 private int deliverInputEvent(QueuedInputEvent q) { 3283 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3284 try { 3285 if (q.mEvent instanceof KeyEvent) { 3286 return deliverKeyEvent(q); 3287 } else { 3288 final int source = q.mEvent.getSource(); 3289 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3290 return deliverPointerEvent(q); 3291 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3292 return deliverTrackballEvent(q); 3293 } else { 3294 return deliverGenericMotionEvent(q); 3295 } 3296 } 3297 } finally { 3298 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3299 } 3300 } 3301 3302 private int deliverInputEventPostIme(QueuedInputEvent q) { 3303 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3304 try { 3305 if (q.mEvent instanceof KeyEvent) { 3306 return deliverKeyEventPostIme(q); 3307 } else { 3308 final int source = q.mEvent.getSource(); 3309 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3310 return deliverTrackballEventPostIme(q); 3311 } else { 3312 return deliverGenericMotionEventPostIme(q); 3313 } 3314 } 3315 } finally { 3316 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3317 } 3318 } 3319 3320 private int deliverPointerEvent(QueuedInputEvent q) { 3321 final MotionEvent event = (MotionEvent)q.mEvent; 3322 final boolean isTouchEvent = event.isTouchEvent(); 3323 if (mInputEventConsistencyVerifier != null) { 3324 if (isTouchEvent) { 3325 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3326 } else { 3327 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3328 } 3329 } 3330 3331 // If there is no view, then the event will not be handled. 3332 if (mView == null || !mAdded) { 3333 return EVENT_NOT_HANDLED; 3334 } 3335 3336 // Translate the pointer event for compatibility, if needed. 3337 if (mTranslator != null) { 3338 mTranslator.translateEventInScreenToAppWindow(event); 3339 } 3340 3341 // Enter touch mode on down or scroll. 3342 final int action = event.getAction(); 3343 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3344 ensureTouchMode(true); 3345 } 3346 3347 // Offset the scroll position. 3348 if (mCurScrollY != 0) { 3349 event.offsetLocation(0, mCurScrollY); 3350 } 3351 if (MEASURE_LATENCY) { 3352 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3353 } 3354 3355 // Remember the touch position for possible drag-initiation. 3356 if (isTouchEvent) { 3357 mLastTouchPoint.x = event.getRawX(); 3358 mLastTouchPoint.y = event.getRawY(); 3359 } 3360 3361 // Dispatch touch to view hierarchy. 3362 boolean handled = mView.dispatchPointerEvent(event); 3363 if (MEASURE_LATENCY) { 3364 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3365 } 3366 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3367 } 3368 3369 private int deliverTrackballEvent(QueuedInputEvent q) { 3370 final MotionEvent event = (MotionEvent)q.mEvent; 3371 if (mInputEventConsistencyVerifier != null) { 3372 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3373 } 3374 3375 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3376 if (LOCAL_LOGV) 3377 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3378 3379 // Dispatch to the IME before propagating down the view hierarchy. 3380 // The IME will eventually call back into handleImeFinishedEvent. 3381 if (mLastWasImTarget) { 3382 InputMethodManager imm = InputMethodManager.peekInstance(); 3383 if (imm != null) { 3384 final int seq = event.getSequenceNumber(); 3385 if (DEBUG_IMF) 3386 Log.v(TAG, "Sending trackball event to IME: seq=" 3387 + seq + " event=" + event); 3388 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3389 mInputMethodCallback); 3390 if (result != EVENT_NOT_HANDLED) { 3391 return result; 3392 } 3393 } 3394 } 3395 } 3396 3397 // Not dispatching to IME, continue with post IME actions. 3398 return deliverTrackballEventPostIme(q); 3399 } 3400 3401 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3402 final MotionEvent event = (MotionEvent) q.mEvent; 3403 3404 // If there is no view, then the event will not be handled. 3405 if (mView == null || !mAdded) { 3406 return EVENT_NOT_HANDLED; 3407 } 3408 3409 // Deliver the trackball event to the view. 3410 if (mView.dispatchTrackballEvent(event)) { 3411 // If we reach this, we delivered a trackball event to mView and 3412 // mView consumed it. Because we will not translate the trackball 3413 // event into a key event, touch mode will not exit, so we exit 3414 // touch mode here. 3415 ensureTouchMode(false); 3416 mLastTrackballTime = Integer.MIN_VALUE; 3417 return EVENT_HANDLED; 3418 } 3419 3420 // Translate the trackball event into DPAD keys and try to deliver those. 3421 final TrackballAxis x = mTrackballAxisX; 3422 final TrackballAxis y = mTrackballAxisY; 3423 3424 long curTime = SystemClock.uptimeMillis(); 3425 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3426 // It has been too long since the last movement, 3427 // so restart at the beginning. 3428 x.reset(0); 3429 y.reset(0); 3430 mLastTrackballTime = curTime; 3431 } 3432 3433 final int action = event.getAction(); 3434 final int metaState = event.getMetaState(); 3435 switch (action) { 3436 case MotionEvent.ACTION_DOWN: 3437 x.reset(2); 3438 y.reset(2); 3439 enqueueInputEvent(new KeyEvent(curTime, curTime, 3440 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3441 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3442 InputDevice.SOURCE_KEYBOARD)); 3443 break; 3444 case MotionEvent.ACTION_UP: 3445 x.reset(2); 3446 y.reset(2); 3447 enqueueInputEvent(new KeyEvent(curTime, curTime, 3448 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3449 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3450 InputDevice.SOURCE_KEYBOARD)); 3451 break; 3452 } 3453 3454 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3455 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3456 + " move=" + event.getX() 3457 + " / Y=" + y.position + " step=" 3458 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3459 + " move=" + event.getY()); 3460 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3461 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3462 3463 // Generate DPAD events based on the trackball movement. 3464 // We pick the axis that has moved the most as the direction of 3465 // the DPAD. When we generate DPAD events for one axis, then the 3466 // other axis is reset -- we don't want to perform DPAD jumps due 3467 // to slight movements in the trackball when making major movements 3468 // along the other axis. 3469 int keycode = 0; 3470 int movement = 0; 3471 float accel = 1; 3472 if (xOff > yOff) { 3473 movement = x.generate((2/event.getXPrecision())); 3474 if (movement != 0) { 3475 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3476 : KeyEvent.KEYCODE_DPAD_LEFT; 3477 accel = x.acceleration; 3478 y.reset(2); 3479 } 3480 } else if (yOff > 0) { 3481 movement = y.generate((2/event.getYPrecision())); 3482 if (movement != 0) { 3483 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3484 : KeyEvent.KEYCODE_DPAD_UP; 3485 accel = y.acceleration; 3486 x.reset(2); 3487 } 3488 } 3489 3490 if (keycode != 0) { 3491 if (movement < 0) movement = -movement; 3492 int accelMovement = (int)(movement * accel); 3493 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3494 + " accelMovement=" + accelMovement 3495 + " accel=" + accel); 3496 if (accelMovement > movement) { 3497 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3498 + keycode); 3499 movement--; 3500 int repeatCount = accelMovement - movement; 3501 enqueueInputEvent(new KeyEvent(curTime, curTime, 3502 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3503 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3504 InputDevice.SOURCE_KEYBOARD)); 3505 } 3506 while (movement > 0) { 3507 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3508 + keycode); 3509 movement--; 3510 curTime = SystemClock.uptimeMillis(); 3511 enqueueInputEvent(new KeyEvent(curTime, curTime, 3512 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3513 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3514 InputDevice.SOURCE_KEYBOARD)); 3515 enqueueInputEvent(new KeyEvent(curTime, curTime, 3516 KeyEvent.ACTION_UP, keycode, 0, metaState, 3517 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3518 InputDevice.SOURCE_KEYBOARD)); 3519 } 3520 mLastTrackballTime = curTime; 3521 } 3522 3523 // Unfortunately we can't tell whether the application consumed the keys, so 3524 // we always consider the trackball event handled. 3525 return EVENT_HANDLED; 3526 } 3527 3528 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3529 final MotionEvent event = (MotionEvent)q.mEvent; 3530 if (mInputEventConsistencyVerifier != null) { 3531 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3532 } 3533 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3534 if (LOCAL_LOGV) 3535 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3536 3537 // Dispatch to the IME before propagating down the view hierarchy. 3538 // The IME will eventually call back into handleImeFinishedEvent. 3539 if (mLastWasImTarget) { 3540 InputMethodManager imm = InputMethodManager.peekInstance(); 3541 if (imm != null) { 3542 final int seq = event.getSequenceNumber(); 3543 if (DEBUG_IMF) 3544 Log.v(TAG, "Sending generic motion event to IME: seq=" 3545 + seq + " event=" + event); 3546 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3547 mInputMethodCallback); 3548 if (result != EVENT_NOT_HANDLED) { 3549 return result; 3550 } 3551 } 3552 } 3553 } 3554 3555 // Not dispatching to IME, continue with post IME actions. 3556 return deliverGenericMotionEventPostIme(q); 3557 } 3558 3559 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3560 final MotionEvent event = (MotionEvent) q.mEvent; 3561 final int source = event.getSource(); 3562 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3563 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3564 3565 // If there is no view, then the event will not be handled. 3566 if (mView == null || !mAdded) { 3567 if (isJoystick) { 3568 updateJoystickDirection(event, false); 3569 } else if (isTouchPad) { 3570 mSimulatedDpad.updateTouchPad(this, event, false); 3571 } 3572 return EVENT_NOT_HANDLED; 3573 } 3574 3575 // Deliver the event to the view. 3576 if (mView.dispatchGenericMotionEvent(event)) { 3577 if (isJoystick) { 3578 updateJoystickDirection(event, false); 3579 } else if (isTouchPad) { 3580 mSimulatedDpad.updateTouchPad(this, event, false); 3581 } 3582 return EVENT_HANDLED; 3583 } 3584 3585 if (isJoystick) { 3586 // Translate the joystick event into DPAD keys and try to deliver 3587 // those. 3588 updateJoystickDirection(event, true); 3589 return EVENT_HANDLED; 3590 } 3591 if (isTouchPad) { 3592 mSimulatedDpad.updateTouchPad(this, event, true); 3593 return EVENT_HANDLED; 3594 } 3595 return EVENT_NOT_HANDLED; 3596 } 3597 3598 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3599 final long time = event.getEventTime(); 3600 final int metaState = event.getMetaState(); 3601 final int deviceId = event.getDeviceId(); 3602 final int source = event.getSource(); 3603 3604 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3605 if (xDirection == 0) { 3606 xDirection = joystickAxisValueToDirection(event.getX()); 3607 } 3608 3609 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3610 if (yDirection == 0) { 3611 yDirection = joystickAxisValueToDirection(event.getY()); 3612 } 3613 3614 if (xDirection != mLastJoystickXDirection) { 3615 if (mLastJoystickXKeyCode != 0) { 3616 enqueueInputEvent(new KeyEvent(time, time, 3617 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3618 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3619 mLastJoystickXKeyCode = 0; 3620 } 3621 3622 mLastJoystickXDirection = xDirection; 3623 3624 if (xDirection != 0 && synthesizeNewKeys) { 3625 mLastJoystickXKeyCode = xDirection > 0 3626 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3627 enqueueInputEvent(new KeyEvent(time, time, 3628 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3629 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3630 } 3631 } 3632 3633 if (yDirection != mLastJoystickYDirection) { 3634 if (mLastJoystickYKeyCode != 0) { 3635 enqueueInputEvent(new KeyEvent(time, time, 3636 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3637 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3638 mLastJoystickYKeyCode = 0; 3639 } 3640 3641 mLastJoystickYDirection = yDirection; 3642 3643 if (yDirection != 0 && synthesizeNewKeys) { 3644 mLastJoystickYKeyCode = yDirection > 0 3645 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3646 enqueueInputEvent(new KeyEvent(time, time, 3647 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3648 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3649 } 3650 } 3651 } 3652 3653 private static int joystickAxisValueToDirection(float value) { 3654 if (value >= 0.5f) { 3655 return 1; 3656 } else if (value <= -0.5f) { 3657 return -1; 3658 } else { 3659 return 0; 3660 } 3661 } 3662 3663 /** 3664 * Returns true if the key is used for keyboard navigation. 3665 * @param keyEvent The key event. 3666 * @return True if the key is used for keyboard navigation. 3667 */ 3668 private static boolean isNavigationKey(KeyEvent keyEvent) { 3669 switch (keyEvent.getKeyCode()) { 3670 case KeyEvent.KEYCODE_DPAD_LEFT: 3671 case KeyEvent.KEYCODE_DPAD_RIGHT: 3672 case KeyEvent.KEYCODE_DPAD_UP: 3673 case KeyEvent.KEYCODE_DPAD_DOWN: 3674 case KeyEvent.KEYCODE_DPAD_CENTER: 3675 case KeyEvent.KEYCODE_PAGE_UP: 3676 case KeyEvent.KEYCODE_PAGE_DOWN: 3677 case KeyEvent.KEYCODE_MOVE_HOME: 3678 case KeyEvent.KEYCODE_MOVE_END: 3679 case KeyEvent.KEYCODE_TAB: 3680 case KeyEvent.KEYCODE_SPACE: 3681 case KeyEvent.KEYCODE_ENTER: 3682 return true; 3683 } 3684 return false; 3685 } 3686 3687 /** 3688 * Returns true if the key is used for typing. 3689 * @param keyEvent The key event. 3690 * @return True if the key is used for typing. 3691 */ 3692 private static boolean isTypingKey(KeyEvent keyEvent) { 3693 return keyEvent.getUnicodeChar() > 0; 3694 } 3695 3696 /** 3697 * See if the key event means we should leave touch mode (and leave touch mode if so). 3698 * @param event The key event. 3699 * @return Whether this key event should be consumed (meaning the act of 3700 * leaving touch mode alone is considered the event). 3701 */ 3702 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3703 // Only relevant in touch mode. 3704 if (!mAttachInfo.mInTouchMode) { 3705 return false; 3706 } 3707 3708 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3709 final int action = event.getAction(); 3710 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3711 return false; 3712 } 3713 3714 // Don't leave touch mode if the IME told us not to. 3715 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3716 return false; 3717 } 3718 3719 // If the key can be used for keyboard navigation then leave touch mode 3720 // and select a focused view if needed (in ensureTouchMode). 3721 // When a new focused view is selected, we consume the navigation key because 3722 // navigation doesn't make much sense unless a view already has focus so 3723 // the key's purpose is to set focus. 3724 if (isNavigationKey(event)) { 3725 return ensureTouchMode(false); 3726 } 3727 3728 // If the key can be used for typing then leave touch mode 3729 // and select a focused view if needed (in ensureTouchMode). 3730 // Always allow the view to process the typing key. 3731 if (isTypingKey(event)) { 3732 ensureTouchMode(false); 3733 return false; 3734 } 3735 3736 return false; 3737 } 3738 3739 private int deliverKeyEvent(QueuedInputEvent q) { 3740 final KeyEvent event = (KeyEvent)q.mEvent; 3741 if (mInputEventConsistencyVerifier != null) { 3742 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3743 } 3744 3745 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3746 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3747 3748 // Perform predispatching before the IME. 3749 if (mView.dispatchKeyEventPreIme(event)) { 3750 return EVENT_HANDLED; 3751 } 3752 3753 // Dispatch to the IME before propagating down the view hierarchy. 3754 // The IME will eventually call back into handleImeFinishedEvent. 3755 if (mLastWasImTarget) { 3756 InputMethodManager imm = InputMethodManager.peekInstance(); 3757 if (imm != null) { 3758 final int seq = event.getSequenceNumber(); 3759 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3760 + seq + " event=" + event); 3761 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3762 mInputMethodCallback); 3763 if (result != EVENT_NOT_HANDLED) { 3764 return result; 3765 } 3766 } 3767 } 3768 } 3769 3770 // Not dispatching to IME, continue with post IME actions. 3771 return deliverKeyEventPostIme(q); 3772 } 3773 3774 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3775 final KeyEvent event = (KeyEvent)q.mEvent; 3776 3777 // If the view went away, then the event will not be handled. 3778 if (mView == null || !mAdded) { 3779 return EVENT_NOT_HANDLED; 3780 } 3781 3782 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3783 if (checkForLeavingTouchModeAndConsume(event)) { 3784 return EVENT_HANDLED; 3785 } 3786 3787 // Make sure the fallback event policy sees all keys that will be delivered to the 3788 // view hierarchy. 3789 mFallbackEventHandler.preDispatchKeyEvent(event); 3790 3791 // Deliver the key to the view hierarchy. 3792 if (mView.dispatchKeyEvent(event)) { 3793 return EVENT_HANDLED; 3794 } 3795 3796 // If the Control modifier is held, try to interpret the key as a shortcut. 3797 if (event.getAction() == KeyEvent.ACTION_DOWN 3798 && event.isCtrlPressed() 3799 && event.getRepeatCount() == 0 3800 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3801 if (mView.dispatchKeyShortcutEvent(event)) { 3802 return EVENT_HANDLED; 3803 } 3804 } 3805 3806 // Apply the fallback event policy. 3807 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3808 return EVENT_HANDLED; 3809 } 3810 3811 // Handle automatic focus changes. 3812 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3813 int direction = 0; 3814 switch (event.getKeyCode()) { 3815 case KeyEvent.KEYCODE_DPAD_LEFT: 3816 if (event.hasNoModifiers()) { 3817 direction = View.FOCUS_LEFT; 3818 } 3819 break; 3820 case KeyEvent.KEYCODE_DPAD_RIGHT: 3821 if (event.hasNoModifiers()) { 3822 direction = View.FOCUS_RIGHT; 3823 } 3824 break; 3825 case KeyEvent.KEYCODE_DPAD_UP: 3826 if (event.hasNoModifiers()) { 3827 direction = View.FOCUS_UP; 3828 } 3829 break; 3830 case KeyEvent.KEYCODE_DPAD_DOWN: 3831 if (event.hasNoModifiers()) { 3832 direction = View.FOCUS_DOWN; 3833 } 3834 break; 3835 case KeyEvent.KEYCODE_TAB: 3836 if (event.hasNoModifiers()) { 3837 direction = View.FOCUS_FORWARD; 3838 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3839 direction = View.FOCUS_BACKWARD; 3840 } 3841 break; 3842 } 3843 if (direction != 0) { 3844 View focused = mView.findFocus(); 3845 if (focused != null) { 3846 View v = focused.focusSearch(direction); 3847 if (v != null && v != focused) { 3848 // do the math the get the interesting rect 3849 // of previous focused into the coord system of 3850 // newly focused view 3851 focused.getFocusedRect(mTempRect); 3852 if (mView instanceof ViewGroup) { 3853 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3854 focused, mTempRect); 3855 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3856 v, mTempRect); 3857 } 3858 if (v.requestFocus(direction, mTempRect)) { 3859 playSoundEffect(SoundEffectConstants 3860 .getContantForFocusDirection(direction)); 3861 return EVENT_HANDLED; 3862 } 3863 } 3864 3865 // Give the focused view a last chance to handle the dpad key. 3866 if (mView.dispatchUnhandledMove(focused, direction)) { 3867 return EVENT_HANDLED; 3868 } 3869 } else { 3870 // find the best view to give focus to in this non-touch-mode with no-focus 3871 View v = focusSearch(null, direction); 3872 if (v != null && v.requestFocus(direction)) { 3873 return EVENT_HANDLED; 3874 } 3875 } 3876 } 3877 } 3878 3879 // Key was unhandled. 3880 return EVENT_NOT_HANDLED; 3881 } 3882 3883 /* drag/drop */ 3884 void setLocalDragState(Object obj) { 3885 mLocalDragState = obj; 3886 } 3887 3888 private void handleDragEvent(DragEvent event) { 3889 // From the root, only drag start/end/location are dispatched. entered/exited 3890 // are determined and dispatched by the viewgroup hierarchy, who then report 3891 // that back here for ultimate reporting back to the framework. 3892 if (mView != null && mAdded) { 3893 final int what = event.mAction; 3894 3895 if (what == DragEvent.ACTION_DRAG_EXITED) { 3896 // A direct EXITED event means that the window manager knows we've just crossed 3897 // a window boundary, so the current drag target within this one must have 3898 // just been exited. Send it the usual notifications and then we're done 3899 // for now. 3900 mView.dispatchDragEvent(event); 3901 } else { 3902 // Cache the drag description when the operation starts, then fill it in 3903 // on subsequent calls as a convenience 3904 if (what == DragEvent.ACTION_DRAG_STARTED) { 3905 mCurrentDragView = null; // Start the current-recipient tracking 3906 mDragDescription = event.mClipDescription; 3907 } else { 3908 event.mClipDescription = mDragDescription; 3909 } 3910 3911 // For events with a [screen] location, translate into window coordinates 3912 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3913 mDragPoint.set(event.mX, event.mY); 3914 if (mTranslator != null) { 3915 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3916 } 3917 3918 if (mCurScrollY != 0) { 3919 mDragPoint.offset(0, mCurScrollY); 3920 } 3921 3922 event.mX = mDragPoint.x; 3923 event.mY = mDragPoint.y; 3924 } 3925 3926 // Remember who the current drag target is pre-dispatch 3927 final View prevDragView = mCurrentDragView; 3928 3929 // Now dispatch the drag/drop event 3930 boolean result = mView.dispatchDragEvent(event); 3931 3932 // If we changed apparent drag target, tell the OS about it 3933 if (prevDragView != mCurrentDragView) { 3934 try { 3935 if (prevDragView != null) { 3936 mWindowSession.dragRecipientExited(mWindow); 3937 } 3938 if (mCurrentDragView != null) { 3939 mWindowSession.dragRecipientEntered(mWindow); 3940 } 3941 } catch (RemoteException e) { 3942 Slog.e(TAG, "Unable to note drag target change"); 3943 } 3944 } 3945 3946 // Report the drop result when we're done 3947 if (what == DragEvent.ACTION_DROP) { 3948 mDragDescription = null; 3949 try { 3950 Log.i(TAG, "Reporting drop result: " + result); 3951 mWindowSession.reportDropResult(mWindow, result); 3952 } catch (RemoteException e) { 3953 Log.e(TAG, "Unable to report drop result"); 3954 } 3955 } 3956 3957 // When the drag operation ends, release any local state object 3958 // that may have been in use 3959 if (what == DragEvent.ACTION_DRAG_ENDED) { 3960 setLocalDragState(null); 3961 } 3962 } 3963 } 3964 event.recycle(); 3965 } 3966 3967 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3968 if (mSeq != args.seq) { 3969 // The sequence has changed, so we need to update our value and make 3970 // sure to do a traversal afterward so the window manager is given our 3971 // most recent data. 3972 mSeq = args.seq; 3973 mAttachInfo.mForceReportNewAttributes = true; 3974 scheduleTraversals(); 3975 } 3976 if (mView == null) return; 3977 if (args.localChanges != 0) { 3978 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3979 } 3980 if (mAttachInfo != null) { 3981 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3982 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3983 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3984 mView.dispatchSystemUiVisibilityChanged(visibility); 3985 } 3986 } 3987 } 3988 3989 public void handleDispatchDoneAnimating() { 3990 if (mWindowsAnimating) { 3991 mWindowsAnimating = false; 3992 if (!mDirty.isEmpty() || mIsAnimating) { 3993 scheduleTraversals(); 3994 } 3995 } 3996 } 3997 3998 public void getLastTouchPoint(Point outLocation) { 3999 outLocation.x = (int) mLastTouchPoint.x; 4000 outLocation.y = (int) mLastTouchPoint.y; 4001 } 4002 4003 public void setDragFocus(View newDragTarget) { 4004 if (mCurrentDragView != newDragTarget) { 4005 mCurrentDragView = newDragTarget; 4006 } 4007 } 4008 4009 private AudioManager getAudioManager() { 4010 if (mView == null) { 4011 throw new IllegalStateException("getAudioManager called when there is no mView"); 4012 } 4013 if (mAudioManager == null) { 4014 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4015 } 4016 return mAudioManager; 4017 } 4018 4019 public AccessibilityInteractionController getAccessibilityInteractionController() { 4020 if (mView == null) { 4021 throw new IllegalStateException("getAccessibilityInteractionController" 4022 + " called when there is no mView"); 4023 } 4024 if (mAccessibilityInteractionController == null) { 4025 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4026 } 4027 return mAccessibilityInteractionController; 4028 } 4029 4030 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4031 boolean insetsPending) throws RemoteException { 4032 4033 float appScale = mAttachInfo.mApplicationScale; 4034 boolean restore = false; 4035 if (params != null && mTranslator != null) { 4036 restore = true; 4037 params.backup(); 4038 mTranslator.translateWindowLayout(params); 4039 } 4040 if (params != null) { 4041 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4042 } 4043 mPendingConfiguration.seq = 0; 4044 //Log.d(TAG, ">>>>>> CALLING relayout"); 4045 if (params != null && mOrigWindowType != params.type) { 4046 // For compatibility with old apps, don't crash here. 4047 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4048 Slog.w(TAG, "Window type can not be changed after " 4049 + "the window is added; ignoring change of " + mView); 4050 params.type = mOrigWindowType; 4051 } 4052 } 4053 int relayoutResult = mWindowSession.relayout( 4054 mWindow, mSeq, params, 4055 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4056 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4057 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4058 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4059 mPendingConfiguration, mSurface); 4060 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4061 if (restore) { 4062 params.restore(); 4063 } 4064 4065 if (mTranslator != null) { 4066 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4067 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4068 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4069 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4070 } 4071 return relayoutResult; 4072 } 4073 4074 /** 4075 * {@inheritDoc} 4076 */ 4077 public void playSoundEffect(int effectId) { 4078 checkThread(); 4079 4080 try { 4081 final AudioManager audioManager = getAudioManager(); 4082 4083 switch (effectId) { 4084 case SoundEffectConstants.CLICK: 4085 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4086 return; 4087 case SoundEffectConstants.NAVIGATION_DOWN: 4088 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4089 return; 4090 case SoundEffectConstants.NAVIGATION_LEFT: 4091 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4092 return; 4093 case SoundEffectConstants.NAVIGATION_RIGHT: 4094 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4095 return; 4096 case SoundEffectConstants.NAVIGATION_UP: 4097 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4098 return; 4099 default: 4100 throw new IllegalArgumentException("unknown effect id " + effectId + 4101 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4102 } 4103 } catch (IllegalStateException e) { 4104 // Exception thrown by getAudioManager() when mView is null 4105 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4106 e.printStackTrace(); 4107 } 4108 } 4109 4110 /** 4111 * {@inheritDoc} 4112 */ 4113 public boolean performHapticFeedback(int effectId, boolean always) { 4114 try { 4115 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4116 } catch (RemoteException e) { 4117 return false; 4118 } 4119 } 4120 4121 /** 4122 * {@inheritDoc} 4123 */ 4124 public View focusSearch(View focused, int direction) { 4125 checkThread(); 4126 if (!(mView instanceof ViewGroup)) { 4127 return null; 4128 } 4129 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4130 } 4131 4132 public void debug() { 4133 mView.debug(); 4134 } 4135 4136 public void dumpGfxInfo(int[] info) { 4137 info[0] = info[1] = 0; 4138 if (mView != null) { 4139 getGfxInfo(mView, info); 4140 } 4141 } 4142 4143 private static void getGfxInfo(View view, int[] info) { 4144 DisplayList displayList = view.mDisplayList; 4145 info[0]++; 4146 if (displayList != null) { 4147 info[1] += displayList.getSize(); 4148 } 4149 4150 if (view instanceof ViewGroup) { 4151 ViewGroup group = (ViewGroup) view; 4152 4153 int count = group.getChildCount(); 4154 for (int i = 0; i < count; i++) { 4155 getGfxInfo(group.getChildAt(i), info); 4156 } 4157 } 4158 } 4159 4160 public void die(boolean immediate) { 4161 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4162 // done by dispatchDetachedFromWindow will cause havoc on return. 4163 if (immediate && !mIsInTraversal) { 4164 doDie(); 4165 } else { 4166 if (!mIsDrawing) { 4167 destroyHardwareRenderer(); 4168 } else { 4169 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4170 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4171 } 4172 mHandler.sendEmptyMessage(MSG_DIE); 4173 } 4174 } 4175 4176 void doDie() { 4177 checkThread(); 4178 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4179 synchronized (this) { 4180 if (mAdded) { 4181 dispatchDetachedFromWindow(); 4182 } 4183 4184 if (mAdded && !mFirst) { 4185 invalidateDisplayLists(); 4186 destroyHardwareRenderer(); 4187 4188 if (mView != null) { 4189 int viewVisibility = mView.getVisibility(); 4190 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4191 if (mWindowAttributesChanged || viewVisibilityChanged) { 4192 // If layout params have been changed, first give them 4193 // to the window manager to make sure it has the correct 4194 // animation info. 4195 try { 4196 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4197 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4198 mWindowSession.finishDrawing(mWindow); 4199 } 4200 } catch (RemoteException e) { 4201 } 4202 } 4203 4204 mSurface.release(); 4205 } 4206 } 4207 4208 mAdded = false; 4209 } 4210 } 4211 4212 public void requestUpdateConfiguration(Configuration config) { 4213 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4214 mHandler.sendMessage(msg); 4215 } 4216 4217 public void loadSystemProperties() { 4218 mHandler.post(new Runnable() { 4219 @Override 4220 public void run() { 4221 // Profiling 4222 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4223 profileRendering(mAttachInfo.mHasWindowFocus); 4224 4225 // Hardware rendering 4226 if (mAttachInfo.mHardwareRenderer != null) { 4227 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4228 invalidate(); 4229 } 4230 } 4231 4232 // Layout debugging 4233 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4234 if (layout != mAttachInfo.mDebugLayout) { 4235 mAttachInfo.mDebugLayout = layout; 4236 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4237 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4238 } 4239 } 4240 } 4241 }); 4242 } 4243 4244 private void destroyHardwareRenderer() { 4245 AttachInfo attachInfo = mAttachInfo; 4246 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4247 4248 if (hardwareRenderer != null) { 4249 if (mView != null) { 4250 hardwareRenderer.destroyHardwareResources(mView); 4251 } 4252 hardwareRenderer.destroy(true); 4253 hardwareRenderer.setRequested(false); 4254 4255 attachInfo.mHardwareRenderer = null; 4256 attachInfo.mHardwareAccelerated = false; 4257 } 4258 } 4259 4260 void dispatchImeFinishedEvent(int seq, boolean handled) { 4261 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4262 msg.arg1 = seq; 4263 msg.arg2 = handled ? 1 : 0; 4264 msg.setAsynchronous(true); 4265 mHandler.sendMessage(msg); 4266 } 4267 4268 public void dispatchFinishInputConnection(InputConnection connection) { 4269 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4270 mHandler.sendMessage(msg); 4271 } 4272 4273 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4274 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4275 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4276 + " contentInsets=" + contentInsets.toShortString() 4277 + " visibleInsets=" + visibleInsets.toShortString() 4278 + " reportDraw=" + reportDraw); 4279 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4280 if (mTranslator != null) { 4281 mTranslator.translateRectInScreenToAppWindow(frame); 4282 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4283 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4284 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4285 } 4286 SomeArgs args = SomeArgs.obtain(); 4287 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4288 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4289 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4290 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4291 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4292 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4293 msg.obj = args; 4294 mHandler.sendMessage(msg); 4295 } 4296 4297 public void dispatchMoved(int newX, int newY) { 4298 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4299 if (mTranslator != null) { 4300 PointF point = new PointF(newX, newY); 4301 mTranslator.translatePointInScreenToAppWindow(point); 4302 newX = (int) (point.x + 0.5); 4303 newY = (int) (point.y + 0.5); 4304 } 4305 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4306 mHandler.sendMessage(msg); 4307 } 4308 4309 /** 4310 * Represents a pending input event that is waiting in a queue. 4311 * 4312 * Input events are processed in serial order by the timestamp specified by 4313 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4314 * one input event to the application at a time and waits for the application 4315 * to finish handling it before delivering the next one. 4316 * 4317 * However, because the application or IME can synthesize and inject multiple 4318 * key events at a time without going through the input dispatcher, we end up 4319 * needing a queue on the application's side. 4320 */ 4321 private static final class QueuedInputEvent { 4322 public static final int FLAG_DELIVER_POST_IME = 1; 4323 4324 public QueuedInputEvent mNext; 4325 4326 public InputEvent mEvent; 4327 public InputEventReceiver mReceiver; 4328 public int mFlags; 4329 } 4330 4331 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4332 InputEventReceiver receiver, int flags) { 4333 QueuedInputEvent q = mQueuedInputEventPool; 4334 if (q != null) { 4335 mQueuedInputEventPoolSize -= 1; 4336 mQueuedInputEventPool = q.mNext; 4337 q.mNext = null; 4338 } else { 4339 q = new QueuedInputEvent(); 4340 } 4341 4342 q.mEvent = event; 4343 q.mReceiver = receiver; 4344 q.mFlags = flags; 4345 return q; 4346 } 4347 4348 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4349 q.mEvent = null; 4350 q.mReceiver = null; 4351 4352 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4353 mQueuedInputEventPoolSize += 1; 4354 q.mNext = mQueuedInputEventPool; 4355 mQueuedInputEventPool = q; 4356 } 4357 } 4358 4359 void enqueueInputEvent(InputEvent event) { 4360 enqueueInputEvent(event, null, 0, false); 4361 } 4362 4363 void enqueueInputEvent(InputEvent event, 4364 InputEventReceiver receiver, int flags, boolean processImmediately) { 4365 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4366 4367 // Always enqueue the input event in order, regardless of its time stamp. 4368 // We do this because the application or the IME may inject key events 4369 // in response to touch events and we want to ensure that the injected keys 4370 // are processed in the order they were received and we cannot trust that 4371 // the time stamp of injected events are monotonic. 4372 QueuedInputEvent last = mFirstPendingInputEvent; 4373 if (last == null) { 4374 mFirstPendingInputEvent = q; 4375 } else { 4376 while (last.mNext != null) { 4377 last = last.mNext; 4378 } 4379 last.mNext = q; 4380 } 4381 4382 if (processImmediately) { 4383 doProcessInputEvents(); 4384 } else { 4385 scheduleProcessInputEvents(); 4386 } 4387 } 4388 4389 private void scheduleProcessInputEvents() { 4390 if (!mProcessInputEventsScheduled) { 4391 mProcessInputEventsScheduled = true; 4392 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4393 msg.setAsynchronous(true); 4394 mHandler.sendMessage(msg); 4395 } 4396 } 4397 4398 void doProcessInputEvents() { 4399 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4400 QueuedInputEvent q = mFirstPendingInputEvent; 4401 mFirstPendingInputEvent = q.mNext; 4402 q.mNext = null; 4403 mCurrentInputEvent = q; 4404 4405 final int result = deliverInputEvent(q); 4406 if (result != EVENT_IN_PROGRESS) { 4407 finishCurrentInputEvent(result == EVENT_HANDLED); 4408 } 4409 } 4410 4411 // We are done processing all input events that we can process right now 4412 // so we can clear the pending flag immediately. 4413 if (mProcessInputEventsScheduled) { 4414 mProcessInputEventsScheduled = false; 4415 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4416 } 4417 } 4418 4419 void handleImeFinishedEvent(int seq, boolean handled) { 4420 final QueuedInputEvent q = mCurrentInputEvent; 4421 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4422 if (DEBUG_IMF) { 4423 Log.v(TAG, "IME finished event: seq=" + seq 4424 + " handled=" + handled + " event=" + q); 4425 } 4426 4427 if (!handled) { 4428 // If the window doesn't currently have input focus, then drop 4429 // this event. This could be an event that came back from the 4430 // IME dispatch but the window has lost focus in the meantime. 4431 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4432 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4433 } else { 4434 final int result = deliverInputEventPostIme(q); 4435 if (result == EVENT_HANDLED) { 4436 handled = true; 4437 } 4438 } 4439 } 4440 finishCurrentInputEvent(handled); 4441 4442 // Immediately start processing the next input event. 4443 doProcessInputEvents(); 4444 } else { 4445 if (DEBUG_IMF) { 4446 Log.v(TAG, "IME finished event: seq=" + seq 4447 + " handled=" + handled + ", event not found!"); 4448 } 4449 } 4450 } 4451 4452 private void finishCurrentInputEvent(boolean handled) { 4453 final QueuedInputEvent q = mCurrentInputEvent; 4454 mCurrentInputEvent = null; 4455 4456 if (q.mReceiver != null) { 4457 q.mReceiver.finishInputEvent(q.mEvent, handled); 4458 } else { 4459 q.mEvent.recycleIfNeededAfterDispatch(); 4460 } 4461 4462 recycleQueuedInputEvent(q); 4463 } 4464 4465 private static boolean isTerminalInputEvent(InputEvent event) { 4466 if (event instanceof KeyEvent) { 4467 final KeyEvent keyEvent = (KeyEvent)event; 4468 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4469 } else { 4470 final MotionEvent motionEvent = (MotionEvent)event; 4471 final int action = motionEvent.getAction(); 4472 return action == MotionEvent.ACTION_UP 4473 || action == MotionEvent.ACTION_CANCEL 4474 || action == MotionEvent.ACTION_HOVER_EXIT; 4475 } 4476 } 4477 4478 void scheduleConsumeBatchedInput() { 4479 if (!mConsumeBatchedInputScheduled) { 4480 mConsumeBatchedInputScheduled = true; 4481 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4482 mConsumedBatchedInputRunnable, null); 4483 } 4484 } 4485 4486 void unscheduleConsumeBatchedInput() { 4487 if (mConsumeBatchedInputScheduled) { 4488 mConsumeBatchedInputScheduled = false; 4489 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4490 mConsumedBatchedInputRunnable, null); 4491 } 4492 } 4493 4494 void doConsumeBatchedInput(long frameTimeNanos) { 4495 if (mConsumeBatchedInputScheduled) { 4496 mConsumeBatchedInputScheduled = false; 4497 if (mInputEventReceiver != null) { 4498 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4499 } 4500 doProcessInputEvents(); 4501 } 4502 } 4503 4504 final class TraversalRunnable implements Runnable { 4505 @Override 4506 public void run() { 4507 doTraversal(); 4508 } 4509 } 4510 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4511 4512 final class WindowInputEventReceiver extends InputEventReceiver { 4513 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4514 super(inputChannel, looper); 4515 } 4516 4517 @Override 4518 public void onInputEvent(InputEvent event) { 4519 enqueueInputEvent(event, this, 0, true); 4520 } 4521 4522 @Override 4523 public void onBatchedInputEventPending() { 4524 scheduleConsumeBatchedInput(); 4525 } 4526 4527 @Override 4528 public void dispose() { 4529 unscheduleConsumeBatchedInput(); 4530 super.dispose(); 4531 } 4532 } 4533 WindowInputEventReceiver mInputEventReceiver; 4534 4535 final class ConsumeBatchedInputRunnable implements Runnable { 4536 @Override 4537 public void run() { 4538 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4539 } 4540 } 4541 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4542 new ConsumeBatchedInputRunnable(); 4543 boolean mConsumeBatchedInputScheduled; 4544 4545 final class InvalidateOnAnimationRunnable implements Runnable { 4546 private boolean mPosted; 4547 private ArrayList<View> mViews = new ArrayList<View>(); 4548 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4549 new ArrayList<AttachInfo.InvalidateInfo>(); 4550 private View[] mTempViews; 4551 private AttachInfo.InvalidateInfo[] mTempViewRects; 4552 4553 public void addView(View view) { 4554 synchronized (this) { 4555 mViews.add(view); 4556 postIfNeededLocked(); 4557 } 4558 } 4559 4560 public void addViewRect(AttachInfo.InvalidateInfo info) { 4561 synchronized (this) { 4562 mViewRects.add(info); 4563 postIfNeededLocked(); 4564 } 4565 } 4566 4567 public void removeView(View view) { 4568 synchronized (this) { 4569 mViews.remove(view); 4570 4571 for (int i = mViewRects.size(); i-- > 0; ) { 4572 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4573 if (info.target == view) { 4574 mViewRects.remove(i); 4575 info.recycle(); 4576 } 4577 } 4578 4579 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4580 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4581 mPosted = false; 4582 } 4583 } 4584 } 4585 4586 @Override 4587 public void run() { 4588 final int viewCount; 4589 final int viewRectCount; 4590 synchronized (this) { 4591 mPosted = false; 4592 4593 viewCount = mViews.size(); 4594 if (viewCount != 0) { 4595 mTempViews = mViews.toArray(mTempViews != null 4596 ? mTempViews : new View[viewCount]); 4597 mViews.clear(); 4598 } 4599 4600 viewRectCount = mViewRects.size(); 4601 if (viewRectCount != 0) { 4602 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4603 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4604 mViewRects.clear(); 4605 } 4606 } 4607 4608 for (int i = 0; i < viewCount; i++) { 4609 mTempViews[i].invalidate(); 4610 mTempViews[i] = null; 4611 } 4612 4613 for (int i = 0; i < viewRectCount; i++) { 4614 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4615 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4616 info.recycle(); 4617 } 4618 } 4619 4620 private void postIfNeededLocked() { 4621 if (!mPosted) { 4622 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4623 mPosted = true; 4624 } 4625 } 4626 } 4627 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4628 new InvalidateOnAnimationRunnable(); 4629 4630 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4631 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4632 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4633 } 4634 4635 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4636 long delayMilliseconds) { 4637 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4638 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4639 } 4640 4641 public void dispatchInvalidateOnAnimation(View view) { 4642 mInvalidateOnAnimationRunnable.addView(view); 4643 } 4644 4645 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4646 mInvalidateOnAnimationRunnable.addViewRect(info); 4647 } 4648 4649 public void enqueueDisplayList(DisplayList displayList) { 4650 mDisplayLists.add(displayList); 4651 } 4652 4653 public void cancelInvalidate(View view) { 4654 mHandler.removeMessages(MSG_INVALIDATE, view); 4655 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4656 // them to the pool 4657 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4658 mInvalidateOnAnimationRunnable.removeView(view); 4659 } 4660 4661 public void dispatchKey(KeyEvent event) { 4662 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4663 msg.setAsynchronous(true); 4664 mHandler.sendMessage(msg); 4665 } 4666 4667 public void dispatchKeyFromIme(KeyEvent event) { 4668 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4669 msg.setAsynchronous(true); 4670 mHandler.sendMessage(msg); 4671 } 4672 4673 public void dispatchUnhandledKey(KeyEvent event) { 4674 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4675 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4676 final int keyCode = event.getKeyCode(); 4677 final int metaState = event.getMetaState(); 4678 4679 // Check for fallback actions specified by the key character map. 4680 KeyCharacterMap.FallbackAction fallbackAction = 4681 kcm.getFallbackAction(keyCode, metaState); 4682 if (fallbackAction != null) { 4683 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4684 KeyEvent fallbackEvent = KeyEvent.obtain( 4685 event.getDownTime(), event.getEventTime(), 4686 event.getAction(), fallbackAction.keyCode, 4687 event.getRepeatCount(), fallbackAction.metaState, 4688 event.getDeviceId(), event.getScanCode(), 4689 flags, event.getSource(), null); 4690 fallbackAction.recycle(); 4691 4692 dispatchKey(fallbackEvent); 4693 } 4694 } 4695 } 4696 4697 public void dispatchAppVisibility(boolean visible) { 4698 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4699 msg.arg1 = visible ? 1 : 0; 4700 mHandler.sendMessage(msg); 4701 } 4702 4703 public void dispatchScreenStateChange(boolean on) { 4704 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4705 msg.arg1 = on ? 1 : 0; 4706 mHandler.sendMessage(msg); 4707 } 4708 4709 public void dispatchGetNewSurface() { 4710 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4711 mHandler.sendMessage(msg); 4712 } 4713 4714 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4715 Message msg = Message.obtain(); 4716 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4717 msg.arg1 = hasFocus ? 1 : 0; 4718 msg.arg2 = inTouchMode ? 1 : 0; 4719 mHandler.sendMessage(msg); 4720 } 4721 4722 public void dispatchCloseSystemDialogs(String reason) { 4723 Message msg = Message.obtain(); 4724 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4725 msg.obj = reason; 4726 mHandler.sendMessage(msg); 4727 } 4728 4729 public void dispatchDragEvent(DragEvent event) { 4730 final int what; 4731 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4732 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4733 mHandler.removeMessages(what); 4734 } else { 4735 what = MSG_DISPATCH_DRAG_EVENT; 4736 } 4737 Message msg = mHandler.obtainMessage(what, event); 4738 mHandler.sendMessage(msg); 4739 } 4740 4741 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4742 int localValue, int localChanges) { 4743 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4744 args.seq = seq; 4745 args.globalVisibility = globalVisibility; 4746 args.localValue = localValue; 4747 args.localChanges = localChanges; 4748 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4749 } 4750 4751 public void dispatchDoneAnimating() { 4752 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4753 } 4754 4755 public void dispatchCheckFocus() { 4756 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4757 // This will result in a call to checkFocus() below. 4758 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4759 } 4760 } 4761 4762 /** 4763 * Post a callback to send a 4764 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4765 * This event is send at most once every 4766 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4767 */ 4768 private void postSendWindowContentChangedCallback(View source) { 4769 if (mSendWindowContentChangedAccessibilityEvent == null) { 4770 mSendWindowContentChangedAccessibilityEvent = 4771 new SendWindowContentChangedAccessibilityEvent(); 4772 } 4773 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4774 if (oldSource == null) { 4775 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4776 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4777 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4778 } else { 4779 mSendWindowContentChangedAccessibilityEvent.mSource = 4780 getCommonPredecessor(oldSource, source); 4781 } 4782 } 4783 4784 /** 4785 * Remove a posted callback to send a 4786 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4787 */ 4788 private void removeSendWindowContentChangedCallback() { 4789 if (mSendWindowContentChangedAccessibilityEvent != null) { 4790 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4791 } 4792 } 4793 4794 public boolean showContextMenuForChild(View originalView) { 4795 return false; 4796 } 4797 4798 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4799 return null; 4800 } 4801 4802 public void createContextMenu(ContextMenu menu) { 4803 } 4804 4805 public void childDrawableStateChanged(View child) { 4806 } 4807 4808 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4809 if (mView == null) { 4810 return false; 4811 } 4812 // Intercept accessibility focus events fired by virtual nodes to keep 4813 // track of accessibility focus position in such nodes. 4814 final int eventType = event.getEventType(); 4815 switch (eventType) { 4816 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4817 final long sourceNodeId = event.getSourceNodeId(); 4818 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4819 sourceNodeId); 4820 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4821 if (source != null) { 4822 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4823 if (provider != null) { 4824 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4825 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4826 setAccessibilityFocus(source, node); 4827 } 4828 } 4829 } break; 4830 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4831 final long sourceNodeId = event.getSourceNodeId(); 4832 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4833 sourceNodeId); 4834 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4835 if (source != null) { 4836 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4837 if (provider != null) { 4838 setAccessibilityFocus(null, null); 4839 } 4840 } 4841 } break; 4842 } 4843 mAccessibilityManager.sendAccessibilityEvent(event); 4844 return true; 4845 } 4846 4847 @Override 4848 public void childAccessibilityStateChanged(View child) { 4849 postSendWindowContentChangedCallback(child); 4850 } 4851 4852 @Override 4853 public boolean canResolveLayoutDirection() { 4854 return true; 4855 } 4856 4857 @Override 4858 public boolean isLayoutDirectionResolved() { 4859 return true; 4860 } 4861 4862 @Override 4863 public int getLayoutDirection() { 4864 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 4865 } 4866 4867 @Override 4868 public boolean canResolveTextDirection() { 4869 return true; 4870 } 4871 4872 @Override 4873 public boolean isTextDirectionResolved() { 4874 return true; 4875 } 4876 4877 @Override 4878 public int getTextDirection() { 4879 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 4880 } 4881 4882 @Override 4883 public boolean canResolveTextAlignment() { 4884 return true; 4885 } 4886 4887 @Override 4888 public boolean isTextAlignmentResolved() { 4889 return true; 4890 } 4891 4892 @Override 4893 public int getTextAlignment() { 4894 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 4895 } 4896 4897 private View getCommonPredecessor(View first, View second) { 4898 if (mAttachInfo != null) { 4899 if (mTempHashSet == null) { 4900 mTempHashSet = new HashSet<View>(); 4901 } 4902 HashSet<View> seen = mTempHashSet; 4903 seen.clear(); 4904 View firstCurrent = first; 4905 while (firstCurrent != null) { 4906 seen.add(firstCurrent); 4907 ViewParent firstCurrentParent = firstCurrent.mParent; 4908 if (firstCurrentParent instanceof View) { 4909 firstCurrent = (View) firstCurrentParent; 4910 } else { 4911 firstCurrent = null; 4912 } 4913 } 4914 View secondCurrent = second; 4915 while (secondCurrent != null) { 4916 if (seen.contains(secondCurrent)) { 4917 seen.clear(); 4918 return secondCurrent; 4919 } 4920 ViewParent secondCurrentParent = secondCurrent.mParent; 4921 if (secondCurrentParent instanceof View) { 4922 secondCurrent = (View) secondCurrentParent; 4923 } else { 4924 secondCurrent = null; 4925 } 4926 } 4927 seen.clear(); 4928 } 4929 return null; 4930 } 4931 4932 void checkThread() { 4933 if (mThread != Thread.currentThread()) { 4934 throw new CalledFromWrongThreadException( 4935 "Only the original thread that created a view hierarchy can touch its views."); 4936 } 4937 } 4938 4939 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4940 // ViewAncestor never intercepts touch event, so this can be a no-op 4941 } 4942 4943 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4944 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4945 if (rectangle != null) { 4946 mTempRect.set(rectangle); 4947 mTempRect.offset(0, -mCurScrollY); 4948 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4949 try { 4950 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4951 } catch (RemoteException re) { 4952 /* ignore */ 4953 } 4954 } 4955 return scrolled; 4956 } 4957 4958 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4959 // Do nothing. 4960 } 4961 4962 class TakenSurfaceHolder extends BaseSurfaceHolder { 4963 @Override 4964 public boolean onAllowLockCanvas() { 4965 return mDrawingAllowed; 4966 } 4967 4968 @Override 4969 public void onRelayoutContainer() { 4970 // Not currently interesting -- from changing between fixed and layout size. 4971 } 4972 4973 public void setFormat(int format) { 4974 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4975 } 4976 4977 public void setType(int type) { 4978 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4979 } 4980 4981 @Override 4982 public void onUpdateSurface() { 4983 // We take care of format and type changes on our own. 4984 throw new IllegalStateException("Shouldn't be here"); 4985 } 4986 4987 public boolean isCreating() { 4988 return mIsCreating; 4989 } 4990 4991 @Override 4992 public void setFixedSize(int width, int height) { 4993 throw new UnsupportedOperationException( 4994 "Currently only support sizing from layout"); 4995 } 4996 4997 public void setKeepScreenOn(boolean screenOn) { 4998 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4999 } 5000 } 5001 5002 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5003 private WeakReference<ViewRootImpl> mViewAncestor; 5004 5005 public InputMethodCallback(ViewRootImpl viewAncestor) { 5006 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5007 } 5008 5009 @Override 5010 public void finishedEvent(int seq, boolean handled) { 5011 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5012 if (viewAncestor != null) { 5013 viewAncestor.dispatchImeFinishedEvent(seq, handled); 5014 } 5015 } 5016 } 5017 5018 static class W extends IWindow.Stub { 5019 private final WeakReference<ViewRootImpl> mViewAncestor; 5020 private final IWindowSession mWindowSession; 5021 5022 W(ViewRootImpl viewAncestor) { 5023 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5024 mWindowSession = viewAncestor.mWindowSession; 5025 } 5026 5027 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5028 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5029 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5030 if (viewAncestor != null) { 5031 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5032 visibleInsets, reportDraw, newConfig); 5033 } 5034 } 5035 5036 @Override 5037 public void moved(int newX, int newY) { 5038 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5039 if (viewAncestor != null) { 5040 viewAncestor.dispatchMoved(newX, newY); 5041 } 5042 } 5043 5044 public void dispatchAppVisibility(boolean visible) { 5045 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5046 if (viewAncestor != null) { 5047 viewAncestor.dispatchAppVisibility(visible); 5048 } 5049 } 5050 5051 public void dispatchScreenState(boolean on) { 5052 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5053 if (viewAncestor != null) { 5054 viewAncestor.dispatchScreenStateChange(on); 5055 } 5056 } 5057 5058 public void dispatchGetNewSurface() { 5059 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5060 if (viewAncestor != null) { 5061 viewAncestor.dispatchGetNewSurface(); 5062 } 5063 } 5064 5065 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5066 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5067 if (viewAncestor != null) { 5068 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5069 } 5070 } 5071 5072 private static int checkCallingPermission(String permission) { 5073 try { 5074 return ActivityManagerNative.getDefault().checkPermission( 5075 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5076 } catch (RemoteException e) { 5077 return PackageManager.PERMISSION_DENIED; 5078 } 5079 } 5080 5081 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5082 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5083 if (viewAncestor != null) { 5084 final View view = viewAncestor.mView; 5085 if (view != null) { 5086 if (checkCallingPermission(Manifest.permission.DUMP) != 5087 PackageManager.PERMISSION_GRANTED) { 5088 throw new SecurityException("Insufficient permissions to invoke" 5089 + " executeCommand() from pid=" + Binder.getCallingPid() 5090 + ", uid=" + Binder.getCallingUid()); 5091 } 5092 5093 OutputStream clientStream = null; 5094 try { 5095 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5096 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5097 } catch (IOException e) { 5098 e.printStackTrace(); 5099 } finally { 5100 if (clientStream != null) { 5101 try { 5102 clientStream.close(); 5103 } catch (IOException e) { 5104 e.printStackTrace(); 5105 } 5106 } 5107 } 5108 } 5109 } 5110 } 5111 5112 public void closeSystemDialogs(String reason) { 5113 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5114 if (viewAncestor != null) { 5115 viewAncestor.dispatchCloseSystemDialogs(reason); 5116 } 5117 } 5118 5119 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5120 boolean sync) { 5121 if (sync) { 5122 try { 5123 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5124 } catch (RemoteException e) { 5125 } 5126 } 5127 } 5128 5129 public void dispatchWallpaperCommand(String action, int x, int y, 5130 int z, Bundle extras, boolean sync) { 5131 if (sync) { 5132 try { 5133 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5134 } catch (RemoteException e) { 5135 } 5136 } 5137 } 5138 5139 /* Drag/drop */ 5140 public void dispatchDragEvent(DragEvent event) { 5141 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5142 if (viewAncestor != null) { 5143 viewAncestor.dispatchDragEvent(event); 5144 } 5145 } 5146 5147 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5148 int localValue, int localChanges) { 5149 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5150 if (viewAncestor != null) { 5151 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5152 localValue, localChanges); 5153 } 5154 } 5155 5156 public void doneAnimating() { 5157 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5158 if (viewAncestor != null) { 5159 viewAncestor.dispatchDoneAnimating(); 5160 } 5161 } 5162 } 5163 5164 /** 5165 * Maintains state information for a single trackball axis, generating 5166 * discrete (DPAD) movements based on raw trackball motion. 5167 */ 5168 static final class TrackballAxis { 5169 /** 5170 * The maximum amount of acceleration we will apply. 5171 */ 5172 static final float MAX_ACCELERATION = 20; 5173 5174 /** 5175 * The maximum amount of time (in milliseconds) between events in order 5176 * for us to consider the user to be doing fast trackball movements, 5177 * and thus apply an acceleration. 5178 */ 5179 static final long FAST_MOVE_TIME = 150; 5180 5181 /** 5182 * Scaling factor to the time (in milliseconds) between events to how 5183 * much to multiple/divide the current acceleration. When movement 5184 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5185 * FAST_MOVE_TIME it divides it. 5186 */ 5187 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5188 5189 float position; 5190 float absPosition; 5191 float acceleration = 1; 5192 long lastMoveTime = 0; 5193 int step; 5194 int dir; 5195 int nonAccelMovement; 5196 5197 void reset(int _step) { 5198 position = 0; 5199 acceleration = 1; 5200 lastMoveTime = 0; 5201 step = _step; 5202 dir = 0; 5203 } 5204 5205 /** 5206 * Add trackball movement into the state. If the direction of movement 5207 * has been reversed, the state is reset before adding the 5208 * movement (so that you don't have to compensate for any previously 5209 * collected movement before see the result of the movement in the 5210 * new direction). 5211 * 5212 * @return Returns the absolute value of the amount of movement 5213 * collected so far. 5214 */ 5215 float collect(float off, long time, String axis) { 5216 long normTime; 5217 if (off > 0) { 5218 normTime = (long)(off * FAST_MOVE_TIME); 5219 if (dir < 0) { 5220 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5221 position = 0; 5222 step = 0; 5223 acceleration = 1; 5224 lastMoveTime = 0; 5225 } 5226 dir = 1; 5227 } else if (off < 0) { 5228 normTime = (long)((-off) * FAST_MOVE_TIME); 5229 if (dir > 0) { 5230 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5231 position = 0; 5232 step = 0; 5233 acceleration = 1; 5234 lastMoveTime = 0; 5235 } 5236 dir = -1; 5237 } else { 5238 normTime = 0; 5239 } 5240 5241 // The number of milliseconds between each movement that is 5242 // considered "normal" and will not result in any acceleration 5243 // or deceleration, scaled by the offset we have here. 5244 if (normTime > 0) { 5245 long delta = time - lastMoveTime; 5246 lastMoveTime = time; 5247 float acc = acceleration; 5248 if (delta < normTime) { 5249 // The user is scrolling rapidly, so increase acceleration. 5250 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5251 if (scale > 1) acc *= scale; 5252 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5253 + off + " normTime=" + normTime + " delta=" + delta 5254 + " scale=" + scale + " acc=" + acc); 5255 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5256 } else { 5257 // The user is scrolling slowly, so decrease acceleration. 5258 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5259 if (scale > 1) acc /= scale; 5260 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5261 + off + " normTime=" + normTime + " delta=" + delta 5262 + " scale=" + scale + " acc=" + acc); 5263 acceleration = acc > 1 ? acc : 1; 5264 } 5265 } 5266 position += off; 5267 return (absPosition = Math.abs(position)); 5268 } 5269 5270 /** 5271 * Generate the number of discrete movement events appropriate for 5272 * the currently collected trackball movement. 5273 * 5274 * @param precision The minimum movement required to generate the 5275 * first discrete movement. 5276 * 5277 * @return Returns the number of discrete movements, either positive 5278 * or negative, or 0 if there is not enough trackball movement yet 5279 * for a discrete movement. 5280 */ 5281 int generate(float precision) { 5282 int movement = 0; 5283 nonAccelMovement = 0; 5284 do { 5285 final int dir = position >= 0 ? 1 : -1; 5286 switch (step) { 5287 // If we are going to execute the first step, then we want 5288 // to do this as soon as possible instead of waiting for 5289 // a full movement, in order to make things look responsive. 5290 case 0: 5291 if (absPosition < precision) { 5292 return movement; 5293 } 5294 movement += dir; 5295 nonAccelMovement += dir; 5296 step = 1; 5297 break; 5298 // If we have generated the first movement, then we need 5299 // to wait for the second complete trackball motion before 5300 // generating the second discrete movement. 5301 case 1: 5302 if (absPosition < 2) { 5303 return movement; 5304 } 5305 movement += dir; 5306 nonAccelMovement += dir; 5307 position += dir > 0 ? -2 : 2; 5308 absPosition = Math.abs(position); 5309 step = 2; 5310 break; 5311 // After the first two, we generate discrete movements 5312 // consistently with the trackball, applying an acceleration 5313 // if the trackball is moving quickly. This is a simple 5314 // acceleration on top of what we already compute based 5315 // on how quickly the wheel is being turned, to apply 5316 // a longer increasing acceleration to continuous movement 5317 // in one direction. 5318 default: 5319 if (absPosition < 1) { 5320 return movement; 5321 } 5322 movement += dir; 5323 position += dir >= 0 ? -1 : 1; 5324 absPosition = Math.abs(position); 5325 float acc = acceleration; 5326 acc *= 1.1f; 5327 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5328 break; 5329 } 5330 } while (true); 5331 } 5332 } 5333 5334 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5335 public CalledFromWrongThreadException(String msg) { 5336 super(msg); 5337 } 5338 } 5339 5340 private SurfaceHolder mHolder = new SurfaceHolder() { 5341 // we only need a SurfaceHolder for opengl. it would be nice 5342 // to implement everything else though, especially the callback 5343 // support (opengl doesn't make use of it right now, but eventually 5344 // will). 5345 public Surface getSurface() { 5346 return mSurface; 5347 } 5348 5349 public boolean isCreating() { 5350 return false; 5351 } 5352 5353 public void addCallback(Callback callback) { 5354 } 5355 5356 public void removeCallback(Callback callback) { 5357 } 5358 5359 public void setFixedSize(int width, int height) { 5360 } 5361 5362 public void setSizeFromLayout() { 5363 } 5364 5365 public void setFormat(int format) { 5366 } 5367 5368 public void setType(int type) { 5369 } 5370 5371 public void setKeepScreenOn(boolean screenOn) { 5372 } 5373 5374 public Canvas lockCanvas() { 5375 return null; 5376 } 5377 5378 public Canvas lockCanvas(Rect dirty) { 5379 return null; 5380 } 5381 5382 public void unlockCanvasAndPost(Canvas canvas) { 5383 } 5384 public Rect getSurfaceFrame() { 5385 return null; 5386 } 5387 }; 5388 5389 static RunQueue getRunQueue() { 5390 RunQueue rq = sRunQueues.get(); 5391 if (rq != null) { 5392 return rq; 5393 } 5394 rq = new RunQueue(); 5395 sRunQueues.set(rq); 5396 return rq; 5397 } 5398 5399 /** 5400 * The run queue is used to enqueue pending work from Views when no Handler is 5401 * attached. The work is executed during the next call to performTraversals on 5402 * the thread. 5403 * @hide 5404 */ 5405 static final class RunQueue { 5406 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5407 5408 void post(Runnable action) { 5409 postDelayed(action, 0); 5410 } 5411 5412 void postDelayed(Runnable action, long delayMillis) { 5413 HandlerAction handlerAction = new HandlerAction(); 5414 handlerAction.action = action; 5415 handlerAction.delay = delayMillis; 5416 5417 synchronized (mActions) { 5418 mActions.add(handlerAction); 5419 } 5420 } 5421 5422 void removeCallbacks(Runnable action) { 5423 final HandlerAction handlerAction = new HandlerAction(); 5424 handlerAction.action = action; 5425 5426 synchronized (mActions) { 5427 final ArrayList<HandlerAction> actions = mActions; 5428 5429 while (actions.remove(handlerAction)) { 5430 // Keep going 5431 } 5432 } 5433 } 5434 5435 void executeActions(Handler handler) { 5436 synchronized (mActions) { 5437 final ArrayList<HandlerAction> actions = mActions; 5438 final int count = actions.size(); 5439 5440 for (int i = 0; i < count; i++) { 5441 final HandlerAction handlerAction = actions.get(i); 5442 handler.postDelayed(handlerAction.action, handlerAction.delay); 5443 } 5444 5445 actions.clear(); 5446 } 5447 } 5448 5449 private static class HandlerAction { 5450 Runnable action; 5451 long delay; 5452 5453 @Override 5454 public boolean equals(Object o) { 5455 if (this == o) return true; 5456 if (o == null || getClass() != o.getClass()) return false; 5457 5458 HandlerAction that = (HandlerAction) o; 5459 return !(action != null ? !action.equals(that.action) : that.action != null); 5460 5461 } 5462 5463 @Override 5464 public int hashCode() { 5465 int result = action != null ? action.hashCode() : 0; 5466 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5467 return result; 5468 } 5469 } 5470 } 5471 5472 /** 5473 * Class for managing the accessibility interaction connection 5474 * based on the global accessibility state. 5475 */ 5476 final class AccessibilityInteractionConnectionManager 5477 implements AccessibilityStateChangeListener { 5478 public void onAccessibilityStateChanged(boolean enabled) { 5479 if (enabled) { 5480 ensureConnection(); 5481 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5482 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5483 View focusedView = mView.findFocus(); 5484 if (focusedView != null && focusedView != mView) { 5485 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5486 } 5487 } 5488 } else { 5489 ensureNoConnection(); 5490 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5491 } 5492 } 5493 5494 public void ensureConnection() { 5495 if (mAttachInfo != null) { 5496 final boolean registered = 5497 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5498 if (!registered) { 5499 mAttachInfo.mAccessibilityWindowId = 5500 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5501 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5502 } 5503 } 5504 } 5505 5506 public void ensureNoConnection() { 5507 final boolean registered = 5508 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5509 if (registered) { 5510 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5511 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5512 } 5513 } 5514 } 5515 5516 /** 5517 * This class is an interface this ViewAncestor provides to the 5518 * AccessibilityManagerService to the latter can interact with 5519 * the view hierarchy in this ViewAncestor. 5520 */ 5521 static final class AccessibilityInteractionConnection 5522 extends IAccessibilityInteractionConnection.Stub { 5523 private final WeakReference<ViewRootImpl> mViewRootImpl; 5524 5525 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5526 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5527 } 5528 5529 @Override 5530 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5531 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5532 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5533 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5534 if (viewRootImpl != null && viewRootImpl.mView != null) { 5535 viewRootImpl.getAccessibilityInteractionController() 5536 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5537 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5538 spec); 5539 } else { 5540 // We cannot make the call and notify the caller so it does not wait. 5541 try { 5542 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5543 } catch (RemoteException re) { 5544 /* best effort - ignore */ 5545 } 5546 } 5547 } 5548 5549 @Override 5550 public void performAccessibilityAction(long accessibilityNodeId, int action, 5551 Bundle arguments, int interactionId, 5552 IAccessibilityInteractionConnectionCallback callback, int flags, 5553 int interogatingPid, long interrogatingTid) { 5554 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5555 if (viewRootImpl != null && viewRootImpl.mView != null) { 5556 viewRootImpl.getAccessibilityInteractionController() 5557 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5558 interactionId, callback, flags, interogatingPid, interrogatingTid); 5559 } else { 5560 // We cannot make the call and notify the caller so it does not wait. 5561 try { 5562 callback.setPerformAccessibilityActionResult(false, interactionId); 5563 } catch (RemoteException re) { 5564 /* best effort - ignore */ 5565 } 5566 } 5567 } 5568 5569 @Override 5570 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5571 String viewId, int interactionId, 5572 IAccessibilityInteractionConnectionCallback callback, int flags, 5573 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5574 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5575 if (viewRootImpl != null && viewRootImpl.mView != null) { 5576 viewRootImpl.getAccessibilityInteractionController() 5577 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5578 viewId, interactionId, callback, flags, interrogatingPid, 5579 interrogatingTid, spec); 5580 } else { 5581 // We cannot make the call and notify the caller so it does not wait. 5582 try { 5583 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5584 } catch (RemoteException re) { 5585 /* best effort - ignore */ 5586 } 5587 } 5588 } 5589 5590 @Override 5591 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5592 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5593 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5594 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5595 if (viewRootImpl != null && viewRootImpl.mView != null) { 5596 viewRootImpl.getAccessibilityInteractionController() 5597 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5598 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5599 spec); 5600 } else { 5601 // We cannot make the call and notify the caller so it does not wait. 5602 try { 5603 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5604 } catch (RemoteException re) { 5605 /* best effort - ignore */ 5606 } 5607 } 5608 } 5609 5610 @Override 5611 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5612 IAccessibilityInteractionConnectionCallback callback, int flags, 5613 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5614 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5615 if (viewRootImpl != null && viewRootImpl.mView != null) { 5616 viewRootImpl.getAccessibilityInteractionController() 5617 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5618 flags, interrogatingPid, interrogatingTid, spec); 5619 } else { 5620 // We cannot make the call and notify the caller so it does not wait. 5621 try { 5622 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5623 } catch (RemoteException re) { 5624 /* best effort - ignore */ 5625 } 5626 } 5627 } 5628 5629 @Override 5630 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5631 IAccessibilityInteractionConnectionCallback callback, int flags, 5632 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5633 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5634 if (viewRootImpl != null && viewRootImpl.mView != null) { 5635 viewRootImpl.getAccessibilityInteractionController() 5636 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5637 callback, flags, interrogatingPid, interrogatingTid, spec); 5638 } else { 5639 // We cannot make the call and notify the caller so it does not wait. 5640 try { 5641 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5642 } catch (RemoteException re) { 5643 /* best effort - ignore */ 5644 } 5645 } 5646 } 5647 } 5648 5649 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5650 public View mSource; 5651 5652 public void run() { 5653 if (mSource != null) { 5654 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5655 mSource.resetAccessibilityStateChanged(); 5656 mSource = null; 5657 } 5658 } 5659 } 5660} 5661