ViewRootImpl.java revision 41aab00c3e762c6b648483ee7b45b162e4da7f7f
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.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.PixelFormat; 32import android.graphics.Point; 33import android.graphics.PointF; 34import android.graphics.PorterDuff; 35import android.graphics.Rect; 36import android.graphics.Region; 37import android.graphics.drawable.Drawable; 38import android.hardware.display.DisplayManager; 39import android.hardware.display.DisplayManager.DisplayListener; 40import android.hardware.input.InputManager; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Build; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 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.TimeUtils; 60import android.util.TypedValue; 61import android.view.Surface.OutOfResourcesException; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 68import android.view.accessibility.AccessibilityNodeInfo; 69import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; 70import android.view.accessibility.AccessibilityNodeProvider; 71import android.view.accessibility.IAccessibilityInteractionConnection; 72import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 73import android.view.animation.AccelerateDecelerateInterpolator; 74import android.view.animation.Interpolator; 75import android.view.inputmethod.InputConnection; 76import android.view.inputmethod.InputMethodManager; 77import android.view.WindowCallbacks; 78import android.widget.Scroller; 79 80import com.android.internal.R; 81import com.android.internal.os.SomeArgs; 82import com.android.internal.policy.PhoneFallbackEventHandler; 83import com.android.internal.view.BaseSurfaceHolder; 84import com.android.internal.view.RootViewSurfaceTaker; 85 86import java.io.FileDescriptor; 87import java.io.IOException; 88import java.io.OutputStream; 89import java.io.PrintWriter; 90import java.lang.ref.WeakReference; 91import java.util.ArrayList; 92import java.util.concurrent.CountDownLatch; 93import java.util.HashSet; 94 95/** 96 * The top of a view hierarchy, implementing the needed protocol between View 97 * and the WindowManager. This is for the most part an internal implementation 98 * detail of {@link WindowManagerGlobal}. 99 * 100 * {@hide} 101 */ 102@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 103public final class ViewRootImpl implements ViewParent, 104 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 105 private static final String TAG = "ViewRootImpl"; 106 private static final boolean DBG = false; 107 private static final boolean LOCAL_LOGV = false; 108 /** @noinspection PointlessBooleanExpression*/ 109 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 110 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 111 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 112 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 113 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 114 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 115 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 116 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 117 private static final boolean DEBUG_FPS = false; 118 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 119 120 /** 121 * Set to false if we do not want to use the multi threaded renderer. Note that by disabling 122 * this, WindowCallbacks will not fire. 123 */ 124 private static final boolean USE_MT_RENDERER = true; 125 126 /** 127 * Set this system property to true to force the view hierarchy to render 128 * at 60 Hz. This can be used to measure the potential framerate. 129 */ 130 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 131 132 // properties used by emulator to determine display shape 133 public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX = 134 "ro.emu.win_outset_bottom_px"; 135 136 /** 137 * Maximum time we allow the user to roll the trackball enough to generate 138 * a key event, before resetting the counters. 139 */ 140 static final int MAX_TRACKBALL_DELAY = 250; 141 142 static final ThreadLocal<HandlerActionQueue> sRunQueues = new ThreadLocal<HandlerActionQueue>(); 143 144 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList(); 145 static boolean sFirstDrawComplete = false; 146 147 static final ArrayList<ComponentCallbacks> sConfigCallbacks = new ArrayList(); 148 149 final ArrayList<WindowCallbacks> mWindowCallbacks = new ArrayList(); 150 final Context mContext; 151 final IWindowSession mWindowSession; 152 final Display mDisplay; 153 final DisplayManager mDisplayManager; 154 final String mBasePackageName; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final Thread mThread; 161 162 final WindowLeaked mLocation; 163 164 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 165 166 final W mWindow; 167 168 final int mTargetSdkVersion; 169 170 int mSeq; 171 172 View mView; 173 174 View mAccessibilityFocusedHost; 175 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 176 177 int mViewVisibility; 178 boolean mAppVisible = true; 179 int mOrigWindowType = -1; 180 181 /** Whether the window had focus during the most recent traversal. */ 182 boolean mHadWindowFocus; 183 184 /** 185 * Whether the window lost focus during a previous traversal and has not 186 * yet gained it back. Used to determine whether a WINDOW_STATE_CHANGE 187 * accessibility events should be sent during traversal. 188 */ 189 boolean mLostWindowFocus; 190 191 // Set to true if the owner of this window is in the stopped state, 192 // so the window should no longer be active. 193 boolean mStopped = false; 194 195 // Set to true to stop input during an Activity Transition. 196 boolean mPausedForTransition = false; 197 198 boolean mLastInCompatMode = false; 199 200 SurfaceHolder.Callback2 mSurfaceHolderCallback; 201 BaseSurfaceHolder mSurfaceHolder; 202 boolean mIsCreating; 203 boolean mDrawingAllowed; 204 205 final Region mTransparentRegion; 206 final Region mPreviousTransparentRegion; 207 208 int mWidth; 209 int mHeight; 210 Rect mDirty; 211 boolean mIsAnimating; 212 213 private boolean mDragResizing; 214 private int mCanvasOffsetX; 215 private int mCanvasOffsetY; 216 217 CompatibilityInfo.Translator mTranslator; 218 219 final View.AttachInfo mAttachInfo; 220 InputChannel mInputChannel; 221 InputQueue.Callback mInputQueueCallback; 222 InputQueue mInputQueue; 223 FallbackEventHandler mFallbackEventHandler; 224 Choreographer mChoreographer; 225 226 final Rect mTempRect; // used in the transaction to not thrash the heap. 227 final Rect mVisRect; // used to retrieve visible rect of focused view. 228 229 boolean mTraversalScheduled; 230 int mTraversalBarrier; 231 boolean mWillDrawSoon; 232 /** Set to true while in performTraversals for detecting when die(true) is called from internal 233 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 234 boolean mIsInTraversal; 235 boolean mApplyInsetsRequested; 236 boolean mLayoutRequested; 237 boolean mFirst; 238 boolean mReportNextDraw; 239 boolean mFullRedrawNeeded; 240 boolean mNewSurfaceNeeded; 241 boolean mHasHadWindowFocus; 242 boolean mLastWasImTarget; 243 CountDownLatch mWindowDrawCountDown; 244 245 boolean mIsDrawing; 246 int mLastSystemUiVisibility; 247 int mClientWindowLayoutFlags; 248 boolean mLastOverscanRequested; 249 250 // Pool of queued input events. 251 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 252 private QueuedInputEvent mQueuedInputEventPool; 253 private int mQueuedInputEventPoolSize; 254 255 /* Input event queue. 256 * Pending input events are input events waiting to be delivered to the input stages 257 * and handled by the application. 258 */ 259 QueuedInputEvent mPendingInputEventHead; 260 QueuedInputEvent mPendingInputEventTail; 261 int mPendingInputEventCount; 262 boolean mProcessInputEventsScheduled; 263 boolean mUnbufferedInputDispatch; 264 String mPendingInputEventQueueLengthCounterName = "pq"; 265 266 InputStage mFirstInputStage; 267 InputStage mFirstPostImeInputStage; 268 InputStage mSyntheticInputStage; 269 270 boolean mWindowAttributesChanged = false; 271 int mWindowAttributesChangesFlag = 0; 272 273 // These can be accessed by any thread, must be protected with a lock. 274 // Surface can never be reassigned or cleared (use Surface.clear()). 275 final Surface mSurface = new Surface(); 276 277 boolean mAdded; 278 boolean mAddedTouchMode; 279 280 final DisplayAdjustments mDisplayAdjustments; 281 282 // These are accessed by multiple threads. 283 final Rect mWinFrame; // frame given by window manager. 284 285 final Rect mPendingOverscanInsets = new Rect(); 286 final Rect mPendingVisibleInsets = new Rect(); 287 final Rect mPendingStableInsets = new Rect(); 288 final Rect mPendingContentInsets = new Rect(); 289 final Rect mPendingOutsets = new Rect(); 290 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 291 = new ViewTreeObserver.InternalInsetsInfo(); 292 293 final Rect mDispatchContentInsets = new Rect(); 294 final Rect mDispatchStableInsets = new Rect(); 295 296 private WindowInsets mLastWindowInsets; 297 298 final Configuration mLastConfiguration = new Configuration(); 299 final Configuration mPendingConfiguration = new Configuration(); 300 301 boolean mScrollMayChange; 302 int mSoftInputMode; 303 WeakReference<View> mLastScrolledFocus; 304 int mScrollY; 305 int mCurScrollY; 306 Scroller mScroller; 307 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 308 private ArrayList<LayoutTransition> mPendingTransitions; 309 310 final ViewConfiguration mViewConfiguration; 311 312 /* Drag/drop */ 313 ClipDescription mDragDescription; 314 View mCurrentDragView; 315 volatile Object mLocalDragState; 316 final PointF mDragPoint = new PointF(); 317 final PointF mLastTouchPoint = new PointF(); 318 319 private boolean mProfileRendering; 320 private Choreographer.FrameCallback mRenderProfiler; 321 private boolean mRenderProfilingEnabled; 322 323 // Variables to track frames per second, enabled via DEBUG_FPS flag 324 private long mFpsStartTime = -1; 325 private long mFpsPrevTime = -1; 326 private int mFpsNumFrames; 327 328 private int mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 329 330 /** 331 * see {@link #playSoundEffect(int)} 332 */ 333 AudioManager mAudioManager; 334 335 final AccessibilityManager mAccessibilityManager; 336 337 AccessibilityInteractionController mAccessibilityInteractionController; 338 339 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 340 HighContrastTextManager mHighContrastTextManager; 341 342 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 343 344 HashSet<View> mTempHashSet; 345 346 private final int mDensity; 347 private final int mNoncompatDensity; 348 349 private boolean mInLayout = false; 350 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 351 boolean mHandlingLayoutInLayoutRequest = false; 352 353 private int mViewLayoutDirectionInitial; 354 355 /** Set to true once doDie() has been called. */ 356 private boolean mRemoved; 357 358 /** 359 * Consistency verifier for debugging purposes. 360 */ 361 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 362 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 363 new InputEventConsistencyVerifier(this, 0) : null; 364 365 static final class SystemUiVisibilityInfo { 366 int seq; 367 int globalVisibility; 368 int localValue; 369 int localChanges; 370 } 371 372 public ViewRootImpl(Context context, Display display) { 373 mContext = context; 374 mWindowSession = WindowManagerGlobal.getWindowSession(); 375 mDisplay = display; 376 mBasePackageName = context.getBasePackageName(); 377 378 mDisplayAdjustments = display.getDisplayAdjustments(); 379 380 mThread = Thread.currentThread(); 381 mLocation = new WindowLeaked(null); 382 mLocation.fillInStackTrace(); 383 mWidth = -1; 384 mHeight = -1; 385 mDirty = new Rect(); 386 mTempRect = new Rect(); 387 mVisRect = new Rect(); 388 mWinFrame = new Rect(); 389 mWindow = new W(this); 390 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 391 mViewVisibility = View.GONE; 392 mTransparentRegion = new Region(); 393 mPreviousTransparentRegion = new Region(); 394 mFirst = true; // true for the first time the view is added 395 mAdded = false; 396 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 397 mAccessibilityManager = AccessibilityManager.getInstance(context); 398 mAccessibilityInteractionConnectionManager = 399 new AccessibilityInteractionConnectionManager(); 400 mAccessibilityManager.addAccessibilityStateChangeListener( 401 mAccessibilityInteractionConnectionManager); 402 mHighContrastTextManager = new HighContrastTextManager(); 403 mAccessibilityManager.addHighTextContrastStateChangeListener( 404 mHighContrastTextManager); 405 mViewConfiguration = ViewConfiguration.get(context); 406 mDensity = context.getResources().getDisplayMetrics().densityDpi; 407 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 408 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 409 mChoreographer = Choreographer.getInstance(); 410 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 411 loadSystemProperties(); 412 } 413 414 public static void addFirstDrawHandler(Runnable callback) { 415 synchronized (sFirstDrawHandlers) { 416 if (!sFirstDrawComplete) { 417 sFirstDrawHandlers.add(callback); 418 } 419 } 420 } 421 422 public static void addConfigCallback(ComponentCallbacks callback) { 423 synchronized (sConfigCallbacks) { 424 sConfigCallbacks.add(callback); 425 } 426 } 427 428 public void addWindowCallbacks(WindowCallbacks callback) { 429 if (USE_MT_RENDERER) { 430 synchronized (mWindowCallbacks) { 431 mWindowCallbacks.add(callback); 432 } 433 } 434 } 435 436 public void removeWindowCallbacks(WindowCallbacks callback) { 437 if (USE_MT_RENDERER) { 438 synchronized (mWindowCallbacks) { 439 mWindowCallbacks.remove(callback); 440 } 441 } 442 } 443 444 public void reportDrawFinish() { 445 if (mWindowDrawCountDown != null) { 446 mWindowDrawCountDown.countDown(); 447 } 448 } 449 450 // FIXME for perf testing only 451 private boolean mProfile = false; 452 453 /** 454 * Call this to profile the next traversal call. 455 * FIXME for perf testing only. Remove eventually 456 */ 457 public void profile() { 458 mProfile = true; 459 } 460 461 /** 462 * Indicates whether we are in touch mode. Calling this method triggers an IPC 463 * call and should be avoided whenever possible. 464 * 465 * @return True, if the device is in touch mode, false otherwise. 466 * 467 * @hide 468 */ 469 static boolean isInTouchMode() { 470 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 471 if (windowSession != null) { 472 try { 473 return windowSession.getInTouchMode(); 474 } catch (RemoteException e) { 475 } 476 } 477 return false; 478 } 479 480 /** 481 * We have one child 482 */ 483 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 484 synchronized (this) { 485 if (mView == null) { 486 mView = view; 487 488 mAttachInfo.mDisplayState = mDisplay.getState(); 489 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 490 491 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 492 mFallbackEventHandler.setView(view); 493 mWindowAttributes.copyFrom(attrs); 494 if (mWindowAttributes.packageName == null) { 495 mWindowAttributes.packageName = mBasePackageName; 496 } 497 attrs = mWindowAttributes; 498 // Keep track of the actual window flags supplied by the client. 499 mClientWindowLayoutFlags = attrs.flags; 500 501 setAccessibilityFocus(null, null); 502 503 if (view instanceof RootViewSurfaceTaker) { 504 mSurfaceHolderCallback = 505 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 506 if (mSurfaceHolderCallback != null) { 507 mSurfaceHolder = new TakenSurfaceHolder(); 508 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 509 } 510 } 511 512 // Compute surface insets required to draw at specified Z value. 513 // TODO: Use real shadow insets for a constant max Z. 514 if (!attrs.hasManualSurfaceInsets) { 515 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 516 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 517 } 518 519 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 520 mTranslator = compatibilityInfo.getTranslator(); 521 522 // If the application owns the surface, don't enable hardware acceleration 523 if (mSurfaceHolder == null) { 524 enableHardwareAcceleration(attrs); 525 } 526 527 boolean restore = false; 528 if (mTranslator != null) { 529 mSurface.setCompatibilityTranslator(mTranslator); 530 restore = true; 531 attrs.backup(); 532 mTranslator.translateWindowLayout(attrs); 533 } 534 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 535 536 if (!compatibilityInfo.supportsScreen()) { 537 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 538 mLastInCompatMode = true; 539 } 540 541 mSoftInputMode = attrs.softInputMode; 542 mWindowAttributesChanged = true; 543 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 544 mAttachInfo.mRootView = view; 545 mAttachInfo.mScalingRequired = mTranslator != null; 546 mAttachInfo.mApplicationScale = 547 mTranslator == null ? 1.0f : mTranslator.applicationScale; 548 if (panelParentView != null) { 549 mAttachInfo.mPanelParentWindowToken 550 = panelParentView.getApplicationWindowToken(); 551 } 552 mAdded = true; 553 int res; /* = WindowManagerImpl.ADD_OKAY; */ 554 555 // Schedule the first layout -before- adding to the window 556 // manager, to make sure we do the relayout before receiving 557 // any other events from the system. 558 requestLayout(); 559 if ((mWindowAttributes.inputFeatures 560 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 561 mInputChannel = new InputChannel(); 562 } 563 try { 564 mOrigWindowType = mWindowAttributes.type; 565 mAttachInfo.mRecomputeGlobalAttributes = true; 566 collectViewAttributes(); 567 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 568 getHostVisibility(), mDisplay.getDisplayId(), 569 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, 570 mAttachInfo.mOutsets, mInputChannel); 571 } catch (RemoteException e) { 572 mAdded = false; 573 mView = null; 574 mAttachInfo.mRootView = null; 575 mInputChannel = null; 576 mFallbackEventHandler.setView(null); 577 unscheduleTraversals(); 578 setAccessibilityFocus(null, null); 579 throw new RuntimeException("Adding window failed", e); 580 } finally { 581 if (restore) { 582 attrs.restore(); 583 } 584 } 585 586 if (mTranslator != null) { 587 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 588 } 589 mPendingOverscanInsets.set(0, 0, 0, 0); 590 mPendingContentInsets.set(mAttachInfo.mContentInsets); 591 mPendingStableInsets.set(mAttachInfo.mStableInsets); 592 mPendingVisibleInsets.set(0, 0, 0, 0); 593 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 594 if (res < WindowManagerGlobal.ADD_OKAY) { 595 mAttachInfo.mRootView = null; 596 mAdded = false; 597 mFallbackEventHandler.setView(null); 598 unscheduleTraversals(); 599 setAccessibilityFocus(null, null); 600 switch (res) { 601 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 602 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 603 throw new WindowManager.BadTokenException( 604 "Unable to add window -- token " + attrs.token 605 + " is not valid; is your activity running?"); 606 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 607 throw new WindowManager.BadTokenException( 608 "Unable to add window -- token " + attrs.token 609 + " is not for an application"); 610 case WindowManagerGlobal.ADD_APP_EXITING: 611 throw new WindowManager.BadTokenException( 612 "Unable to add window -- app for token " + attrs.token 613 + " is exiting"); 614 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 615 throw new WindowManager.BadTokenException( 616 "Unable to add window -- window " + mWindow 617 + " has already been added"); 618 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 619 // Silently ignore -- we would have just removed it 620 // right away, anyway. 621 return; 622 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 623 throw new WindowManager.BadTokenException("Unable to add window " 624 + mWindow + " -- another window of type " 625 + mWindowAttributes.type + " already exists"); 626 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 627 throw new WindowManager.BadTokenException("Unable to add window " 628 + mWindow + " -- permission denied for window type " 629 + mWindowAttributes.type); 630 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 631 throw new WindowManager.InvalidDisplayException("Unable to add window " 632 + mWindow + " -- the specified display can not be found"); 633 case WindowManagerGlobal.ADD_INVALID_TYPE: 634 throw new WindowManager.InvalidDisplayException("Unable to add window " 635 + mWindow + " -- the specified window type " 636 + mWindowAttributes.type + " is not valid"); 637 } 638 throw new RuntimeException( 639 "Unable to add window -- unknown error code " + res); 640 } 641 642 if (view instanceof RootViewSurfaceTaker) { 643 mInputQueueCallback = 644 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 645 } 646 if (mInputChannel != null) { 647 if (mInputQueueCallback != null) { 648 mInputQueue = new InputQueue(); 649 mInputQueueCallback.onInputQueueCreated(mInputQueue); 650 } 651 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 652 Looper.myLooper()); 653 } 654 655 view.assignParent(this); 656 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 657 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 658 659 if (mAccessibilityManager.isEnabled()) { 660 mAccessibilityInteractionConnectionManager.ensureConnection(); 661 } 662 663 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 664 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 665 } 666 667 // Set up the input pipeline. 668 CharSequence counterSuffix = attrs.getTitle(); 669 mSyntheticInputStage = new SyntheticInputStage(); 670 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 671 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 672 "aq:native-post-ime:" + counterSuffix); 673 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 674 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 675 "aq:ime:" + counterSuffix); 676 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 677 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 678 "aq:native-pre-ime:" + counterSuffix); 679 680 mFirstInputStage = nativePreImeStage; 681 mFirstPostImeInputStage = earlyPostImeStage; 682 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 683 } 684 } 685 } 686 687 /** Whether the window is in local focus mode or not */ 688 private boolean isInLocalFocusMode() { 689 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 690 } 691 692 public int getWindowFlags() { 693 return mWindowAttributes.flags; 694 } 695 696 public int getDisplayId() { 697 return mDisplay.getDisplayId(); 698 } 699 700 public CharSequence getTitle() { 701 return mWindowAttributes.getTitle(); 702 } 703 704 void destroyHardwareResources() { 705 if (mAttachInfo.mHardwareRenderer != null) { 706 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 707 mAttachInfo.mHardwareRenderer.destroy(); 708 } 709 } 710 711 public void detachFunctor(long functor) { 712 if (mAttachInfo.mHardwareRenderer != null) { 713 // Fence so that any pending invokeFunctor() messages will be processed 714 // before we return from detachFunctor. 715 mAttachInfo.mHardwareRenderer.stopDrawing(); 716 } 717 } 718 719 /** 720 * Schedules the functor for execution in either kModeProcess or 721 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 722 * 723 * @param functor The native functor to invoke 724 * @param waitForCompletion If true, this will not return until the functor 725 * has invoked. If false, the functor may be invoked 726 * asynchronously. 727 */ 728 public void invokeFunctor(long functor, boolean waitForCompletion) { 729 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 730 } 731 732 public void registerAnimatingRenderNode(RenderNode animator) { 733 if (mAttachInfo.mHardwareRenderer != null) { 734 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 735 } else { 736 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 737 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 738 } 739 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 740 } 741 } 742 743 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 744 mAttachInfo.mHardwareAccelerated = false; 745 mAttachInfo.mHardwareAccelerationRequested = false; 746 747 // Don't enable hardware acceleration when the application is in compatibility mode 748 if (mTranslator != null) return; 749 750 // Try to enable hardware acceleration if requested 751 final boolean hardwareAccelerated = 752 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 753 754 if (hardwareAccelerated) { 755 if (!HardwareRenderer.isAvailable()) { 756 return; 757 } 758 759 // Persistent processes (including the system) should not do 760 // accelerated rendering on low-end devices. In that case, 761 // sRendererDisabled will be set. In addition, the system process 762 // itself should never do accelerated rendering. In that case, both 763 // sRendererDisabled and sSystemRendererDisabled are set. When 764 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 765 // can be used by code on the system process to escape that and enable 766 // HW accelerated drawing. (This is basically for the lock screen.) 767 768 final boolean fakeHwAccelerated = (attrs.privateFlags & 769 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 770 final boolean forceHwAccelerated = (attrs.privateFlags & 771 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 772 773 if (fakeHwAccelerated) { 774 // This is exclusively for the preview windows the window manager 775 // shows for launching applications, so they will look more like 776 // the app being launched. 777 mAttachInfo.mHardwareAccelerationRequested = true; 778 } else if (!HardwareRenderer.sRendererDisabled 779 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 780 if (mAttachInfo.mHardwareRenderer != null) { 781 mAttachInfo.mHardwareRenderer.destroy(); 782 } 783 784 final Rect insets = attrs.surfaceInsets; 785 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 786 || insets.top != 0 || insets.bottom != 0; 787 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 788 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 789 if (mAttachInfo.mHardwareRenderer != null) { 790 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 791 mAttachInfo.mHardwareAccelerated = 792 mAttachInfo.mHardwareAccelerationRequested = true; 793 } 794 } 795 } 796 } 797 798 public View getView() { 799 return mView; 800 } 801 802 final WindowLeaked getLocation() { 803 return mLocation; 804 } 805 806 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 807 synchronized (this) { 808 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 809 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 810 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 811 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 812 final int oldSoftInputMode = mWindowAttributes.softInputMode; 813 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 814 815 // Keep track of the actual window flags supplied by the client. 816 mClientWindowLayoutFlags = attrs.flags; 817 818 // Preserve compatible window flag if exists. 819 final int compatibleWindowFlag = mWindowAttributes.privateFlags 820 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 821 822 // Transfer over system UI visibility values as they carry current state. 823 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 824 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 825 826 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 827 if ((mWindowAttributesChangesFlag 828 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 829 // Recompute system ui visibility. 830 mAttachInfo.mRecomputeGlobalAttributes = true; 831 } 832 if (mWindowAttributes.packageName == null) { 833 mWindowAttributes.packageName = mBasePackageName; 834 } 835 mWindowAttributes.privateFlags |= compatibleWindowFlag; 836 837 // Restore old surface insets. 838 mWindowAttributes.surfaceInsets.set( 839 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 840 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 841 842 applyKeepScreenOnFlag(mWindowAttributes); 843 844 if (newView) { 845 mSoftInputMode = attrs.softInputMode; 846 requestLayout(); 847 } 848 849 // Don't lose the mode we last auto-computed. 850 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 851 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 852 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 853 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 854 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 855 } 856 857 mWindowAttributesChanged = true; 858 scheduleTraversals(); 859 } 860 } 861 862 void handleAppVisibility(boolean visible) { 863 if (mAppVisible != visible) { 864 mAppVisible = visible; 865 scheduleTraversals(); 866 if (!mAppVisible) { 867 WindowManagerGlobal.trimForeground(); 868 } 869 } 870 } 871 872 void handleGetNewSurface() { 873 mNewSurfaceNeeded = true; 874 mFullRedrawNeeded = true; 875 scheduleTraversals(); 876 } 877 878 private final DisplayListener mDisplayListener = new DisplayListener() { 879 @Override 880 public void onDisplayChanged(int displayId) { 881 if (mView != null && mDisplay.getDisplayId() == displayId) { 882 final int oldDisplayState = mAttachInfo.mDisplayState; 883 final int newDisplayState = mDisplay.getState(); 884 if (oldDisplayState != newDisplayState) { 885 mAttachInfo.mDisplayState = newDisplayState; 886 pokeDrawLockIfNeeded(); 887 if (oldDisplayState != Display.STATE_UNKNOWN) { 888 final int oldScreenState = toViewScreenState(oldDisplayState); 889 final int newScreenState = toViewScreenState(newDisplayState); 890 if (oldScreenState != newScreenState) { 891 mView.dispatchScreenStateChanged(newScreenState); 892 } 893 if (oldDisplayState == Display.STATE_OFF) { 894 // Draw was suppressed so we need to for it to happen here. 895 mFullRedrawNeeded = true; 896 scheduleTraversals(); 897 } 898 } 899 } 900 } 901 } 902 903 @Override 904 public void onDisplayRemoved(int displayId) { 905 } 906 907 @Override 908 public void onDisplayAdded(int displayId) { 909 } 910 911 private int toViewScreenState(int displayState) { 912 return displayState == Display.STATE_OFF ? 913 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 914 } 915 }; 916 917 void pokeDrawLockIfNeeded() { 918 final int displayState = mAttachInfo.mDisplayState; 919 if (mView != null && mAdded && mTraversalScheduled 920 && (displayState == Display.STATE_DOZE 921 || displayState == Display.STATE_DOZE_SUSPEND)) { 922 try { 923 mWindowSession.pokeDrawLock(mWindow); 924 } catch (RemoteException ex) { 925 // System server died, oh well. 926 } 927 } 928 } 929 930 @Override 931 public void requestFitSystemWindows() { 932 checkThread(); 933 mApplyInsetsRequested = true; 934 scheduleTraversals(); 935 } 936 937 @Override 938 public void requestLayout() { 939 if (!mHandlingLayoutInLayoutRequest) { 940 checkThread(); 941 mLayoutRequested = true; 942 scheduleTraversals(); 943 } 944 } 945 946 @Override 947 public boolean isLayoutRequested() { 948 return mLayoutRequested; 949 } 950 951 void invalidate() { 952 mDirty.set(0, 0, mWidth, mHeight); 953 if (!mWillDrawSoon) { 954 scheduleTraversals(); 955 } 956 } 957 958 void invalidateWorld(View view) { 959 view.invalidate(); 960 if (view instanceof ViewGroup) { 961 ViewGroup parent = (ViewGroup) view; 962 for (int i = 0; i < parent.getChildCount(); i++) { 963 invalidateWorld(parent.getChildAt(i)); 964 } 965 } 966 } 967 968 @Override 969 public void invalidateChild(View child, Rect dirty) { 970 invalidateChildInParent(null, dirty); 971 } 972 973 @Override 974 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 975 checkThread(); 976 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 977 978 if (dirty == null) { 979 invalidate(); 980 return null; 981 } else if (dirty.isEmpty() && !mIsAnimating) { 982 return null; 983 } 984 985 if (mCurScrollY != 0 || mTranslator != null) { 986 mTempRect.set(dirty); 987 dirty = mTempRect; 988 if (mCurScrollY != 0) { 989 dirty.offset(0, -mCurScrollY); 990 } 991 if (mTranslator != null) { 992 mTranslator.translateRectInAppWindowToScreen(dirty); 993 } 994 if (mAttachInfo.mScalingRequired) { 995 dirty.inset(-1, -1); 996 } 997 } 998 999 invalidateRectOnScreen(dirty); 1000 1001 return null; 1002 } 1003 1004 private void invalidateRectOnScreen(Rect dirty) { 1005 final Rect localDirty = mDirty; 1006 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 1007 mAttachInfo.mSetIgnoreDirtyState = true; 1008 mAttachInfo.mIgnoreDirtyState = true; 1009 } 1010 1011 // Add the new dirty rect to the current one 1012 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 1013 // Intersect with the bounds of the window to skip 1014 // updates that lie outside of the visible region 1015 final float appScale = mAttachInfo.mApplicationScale; 1016 final boolean intersected = localDirty.intersect(0, 0, 1017 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1018 if (!intersected) { 1019 localDirty.setEmpty(); 1020 } 1021 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 1022 scheduleTraversals(); 1023 } 1024 } 1025 1026 void setWindowStopped(boolean stopped) { 1027 if (mStopped != stopped) { 1028 mStopped = stopped; 1029 if (!mStopped) { 1030 scheduleTraversals(); 1031 } 1032 } 1033 } 1034 1035 /** 1036 * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed 1037 * through to allow quick reversal of the Activity Transition. 1038 * 1039 * @param paused true to pause, false to resume. 1040 */ 1041 public void setPausedForTransition(boolean paused) { 1042 mPausedForTransition = paused; 1043 } 1044 1045 @Override 1046 public ViewParent getParent() { 1047 return null; 1048 } 1049 1050 @Override 1051 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1052 if (child != mView) { 1053 throw new RuntimeException("child is not mine, honest!"); 1054 } 1055 // Note: don't apply scroll offset, because we want to know its 1056 // visibility in the virtual canvas being given to the view hierarchy. 1057 return r.intersect(0, 0, mWidth, mHeight); 1058 } 1059 1060 @Override 1061 public void bringChildToFront(View child) { 1062 } 1063 1064 int getHostVisibility() { 1065 return mAppVisible ? mView.getVisibility() : View.GONE; 1066 } 1067 1068 /** 1069 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1070 * This list will be cleared after the transitions on the list are start()'ed. These 1071 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1072 * happens during the layout phase of traversal, which we want to complete before any of the 1073 * animations are started (because those animations may side-effect properties that layout 1074 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1075 * to the list and it is started just prior to starting the drawing phase of traversal. 1076 * 1077 * @param transition The LayoutTransition to be started on the next traversal. 1078 * 1079 * @hide 1080 */ 1081 public void requestTransitionStart(LayoutTransition transition) { 1082 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1083 if (mPendingTransitions == null) { 1084 mPendingTransitions = new ArrayList<LayoutTransition>(); 1085 } 1086 mPendingTransitions.add(transition); 1087 } 1088 } 1089 1090 /** 1091 * Notifies the HardwareRenderer that a new frame will be coming soon. 1092 * Currently only {@link ThreadedRenderer} cares about this, and uses 1093 * this knowledge to adjust the scheduling of off-thread animations 1094 */ 1095 void notifyRendererOfFramePending() { 1096 if (mAttachInfo.mHardwareRenderer != null) { 1097 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1098 } 1099 } 1100 1101 void scheduleTraversals() { 1102 if (!mTraversalScheduled) { 1103 mTraversalScheduled = true; 1104 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1105 mChoreographer.postCallback( 1106 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1107 if (!mUnbufferedInputDispatch) { 1108 scheduleConsumeBatchedInput(); 1109 } 1110 notifyRendererOfFramePending(); 1111 pokeDrawLockIfNeeded(); 1112 } 1113 } 1114 1115 void unscheduleTraversals() { 1116 if (mTraversalScheduled) { 1117 mTraversalScheduled = false; 1118 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1119 mChoreographer.removeCallbacks( 1120 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1121 } 1122 } 1123 1124 void doTraversal() { 1125 if (mTraversalScheduled) { 1126 mTraversalScheduled = false; 1127 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1128 1129 if (mProfile) { 1130 Debug.startMethodTracing("ViewAncestor"); 1131 } 1132 1133 performTraversals(); 1134 1135 if (mProfile) { 1136 Debug.stopMethodTracing(); 1137 mProfile = false; 1138 } 1139 } 1140 } 1141 1142 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1143 // Update window's global keep screen on flag: if a view has requested 1144 // that the screen be kept on, then it is always set; otherwise, it is 1145 // set to whatever the client last requested for the global state. 1146 if (mAttachInfo.mKeepScreenOn) { 1147 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1148 } else { 1149 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1150 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1151 } 1152 } 1153 1154 private boolean collectViewAttributes() { 1155 if (mAttachInfo.mRecomputeGlobalAttributes) { 1156 //Log.i(TAG, "Computing view hierarchy attributes!"); 1157 mAttachInfo.mRecomputeGlobalAttributes = false; 1158 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1159 mAttachInfo.mKeepScreenOn = false; 1160 mAttachInfo.mSystemUiVisibility = 0; 1161 mAttachInfo.mHasSystemUiListeners = false; 1162 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1163 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1164 WindowManager.LayoutParams params = mWindowAttributes; 1165 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1166 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1167 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1168 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1169 applyKeepScreenOnFlag(params); 1170 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1171 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1172 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1173 return true; 1174 } 1175 } 1176 return false; 1177 } 1178 1179 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1180 int vis = 0; 1181 // Translucent decor window flags imply stable system ui visibility. 1182 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1183 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1184 } 1185 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1186 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1187 } 1188 return vis; 1189 } 1190 1191 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1192 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1193 int childWidthMeasureSpec; 1194 int childHeightMeasureSpec; 1195 boolean windowSizeMayChange = false; 1196 1197 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1198 "Measuring " + host + " in display " + desiredWindowWidth 1199 + "x" + desiredWindowHeight + "..."); 1200 1201 boolean goodMeasure = false; 1202 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1203 // On large screens, we don't want to allow dialogs to just 1204 // stretch to fill the entire width of the screen to display 1205 // one line of text. First try doing the layout at a smaller 1206 // size to see if it will fit. 1207 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1208 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1209 int baseSize = 0; 1210 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1211 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1212 } 1213 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1214 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1215 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1216 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1217 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1218 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1219 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1220 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1221 goodMeasure = true; 1222 } else { 1223 // Didn't fit in that size... try expanding a bit. 1224 baseSize = (baseSize+desiredWindowWidth)/2; 1225 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1226 + baseSize); 1227 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1228 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1229 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1230 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1231 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1232 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1233 goodMeasure = true; 1234 } 1235 } 1236 } 1237 } 1238 1239 if (!goodMeasure) { 1240 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1241 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1242 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1243 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1244 windowSizeMayChange = true; 1245 } 1246 } 1247 1248 if (DBG) { 1249 System.out.println("======================================"); 1250 System.out.println("performTraversals -- after measure"); 1251 host.debug(); 1252 } 1253 1254 return windowSizeMayChange; 1255 } 1256 1257 /** 1258 * Modifies the input matrix such that it maps view-local coordinates to 1259 * on-screen coordinates. 1260 * 1261 * @param m input matrix to modify 1262 */ 1263 void transformMatrixToGlobal(Matrix m) { 1264 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1265 } 1266 1267 /** 1268 * Modifies the input matrix such that it maps on-screen coordinates to 1269 * view-local coordinates. 1270 * 1271 * @param m input matrix to modify 1272 */ 1273 void transformMatrixToLocal(Matrix m) { 1274 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1275 } 1276 1277 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1278 if (mLastWindowInsets == null || forceConstruct) { 1279 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1280 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1281 Rect contentInsets = mDispatchContentInsets; 1282 Rect stableInsets = mDispatchStableInsets; 1283 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1284 // immediately use pending insets. 1285 if (!forceConstruct 1286 && (!mPendingContentInsets.equals(contentInsets) || 1287 !mPendingStableInsets.equals(stableInsets))) { 1288 contentInsets = mPendingContentInsets; 1289 stableInsets = mPendingStableInsets; 1290 } 1291 Rect outsets = mAttachInfo.mOutsets; 1292 if (outsets.left > 0 || outsets.top > 0 || outsets.right > 0 || outsets.bottom > 0) { 1293 contentInsets = new Rect(contentInsets.left + outsets.left, 1294 contentInsets.top + outsets.top, contentInsets.right + outsets.right, 1295 contentInsets.bottom + outsets.bottom); 1296 } 1297 mLastWindowInsets = new WindowInsets(contentInsets, 1298 null /* windowDecorInsets */, stableInsets, 1299 mContext.getResources().getConfiguration().isScreenRound()); 1300 } 1301 return mLastWindowInsets; 1302 } 1303 1304 void dispatchApplyInsets(View host) { 1305 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1306 } 1307 1308 private void performTraversals() { 1309 // cache mView since it is used so much below... 1310 final View host = mView; 1311 1312 if (DBG) { 1313 System.out.println("======================================"); 1314 System.out.println("performTraversals"); 1315 host.debug(); 1316 } 1317 1318 if (host == null || !mAdded) 1319 return; 1320 1321 mIsInTraversal = true; 1322 mWillDrawSoon = true; 1323 boolean windowSizeMayChange = false; 1324 boolean newSurface = false; 1325 boolean surfaceChanged = false; 1326 WindowManager.LayoutParams lp = mWindowAttributes; 1327 1328 int desiredWindowWidth; 1329 int desiredWindowHeight; 1330 1331 final int viewVisibility = getHostVisibility(); 1332 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1333 || mNewSurfaceNeeded; 1334 1335 WindowManager.LayoutParams params = null; 1336 if (mWindowAttributesChanged) { 1337 mWindowAttributesChanged = false; 1338 surfaceChanged = true; 1339 params = lp; 1340 } 1341 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1342 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1343 params = lp; 1344 mFullRedrawNeeded = true; 1345 mLayoutRequested = true; 1346 if (mLastInCompatMode) { 1347 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1348 mLastInCompatMode = false; 1349 } else { 1350 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1351 mLastInCompatMode = true; 1352 } 1353 } 1354 1355 mWindowAttributesChangesFlag = 0; 1356 1357 Rect frame = mWinFrame; 1358 if (mFirst) { 1359 mFullRedrawNeeded = true; 1360 mLayoutRequested = true; 1361 1362 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1363 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1364 // NOTE -- system code, won't try to do compat mode. 1365 Point size = new Point(); 1366 mDisplay.getRealSize(size); 1367 desiredWindowWidth = size.x; 1368 desiredWindowHeight = size.y; 1369 } else { 1370 DisplayMetrics packageMetrics = 1371 mView.getContext().getResources().getDisplayMetrics(); 1372 desiredWindowWidth = packageMetrics.widthPixels; 1373 desiredWindowHeight = packageMetrics.heightPixels; 1374 } 1375 1376 // We used to use the following condition to choose 32 bits drawing caches: 1377 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1378 // However, windows are now always 32 bits by default, so choose 32 bits 1379 mAttachInfo.mUse32BitDrawingCache = true; 1380 mAttachInfo.mHasWindowFocus = false; 1381 mAttachInfo.mWindowVisibility = viewVisibility; 1382 mAttachInfo.mRecomputeGlobalAttributes = false; 1383 viewVisibilityChanged = false; 1384 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1385 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1386 // Set the layout direction if it has not been set before (inherit is the default) 1387 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1388 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1389 } 1390 host.dispatchAttachedToWindow(mAttachInfo, 0); 1391 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1392 dispatchApplyInsets(host); 1393 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1394 1395 } else { 1396 desiredWindowWidth = frame.width(); 1397 desiredWindowHeight = frame.height(); 1398 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1399 if (DEBUG_ORIENTATION) Log.v(TAG, 1400 "View " + host + " resized to: " + frame); 1401 mFullRedrawNeeded = true; 1402 mLayoutRequested = true; 1403 windowSizeMayChange = true; 1404 } 1405 } 1406 1407 if (viewVisibilityChanged) { 1408 mAttachInfo.mWindowVisibility = viewVisibility; 1409 host.dispatchWindowVisibilityChanged(viewVisibility); 1410 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1411 endDragResizing(); 1412 destroyHardwareResources(); 1413 } 1414 if (viewVisibility == View.GONE) { 1415 // After making a window gone, we will count it as being 1416 // shown for the first time the next time it gets focus. 1417 mHasHadWindowFocus = false; 1418 } 1419 } 1420 1421 // Non-visible windows can't hold accessibility focus. 1422 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1423 host.clearAccessibilityFocus(); 1424 } 1425 1426 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1427 getRunQueue().executeActions(mAttachInfo.mHandler); 1428 1429 boolean insetsChanged = false; 1430 1431 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1432 if (layoutRequested) { 1433 1434 final Resources res = mView.getContext().getResources(); 1435 1436 if (mFirst) { 1437 // make sure touch mode code executes by setting cached value 1438 // to opposite of the added touch mode. 1439 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1440 ensureTouchModeLocally(mAddedTouchMode); 1441 } else { 1442 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1443 insetsChanged = true; 1444 } 1445 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1446 insetsChanged = true; 1447 } 1448 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1449 insetsChanged = true; 1450 } 1451 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1452 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1453 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1454 + mAttachInfo.mVisibleInsets); 1455 } 1456 if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) { 1457 insetsChanged = true; 1458 } 1459 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1460 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1461 windowSizeMayChange = true; 1462 1463 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1464 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1465 // NOTE -- system code, won't try to do compat mode. 1466 Point size = new Point(); 1467 mDisplay.getRealSize(size); 1468 desiredWindowWidth = size.x; 1469 desiredWindowHeight = size.y; 1470 } else { 1471 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1472 desiredWindowWidth = packageMetrics.widthPixels; 1473 desiredWindowHeight = packageMetrics.heightPixels; 1474 } 1475 } 1476 } 1477 1478 // Ask host how big it wants to be 1479 windowSizeMayChange |= measureHierarchy(host, lp, res, 1480 desiredWindowWidth, desiredWindowHeight); 1481 } 1482 1483 if (collectViewAttributes()) { 1484 params = lp; 1485 } 1486 if (mAttachInfo.mForceReportNewAttributes) { 1487 mAttachInfo.mForceReportNewAttributes = false; 1488 params = lp; 1489 } 1490 1491 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1492 mAttachInfo.mViewVisibilityChanged = false; 1493 int resizeMode = mSoftInputMode & 1494 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1495 // If we are in auto resize mode, then we need to determine 1496 // what mode to use now. 1497 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1498 final int N = mAttachInfo.mScrollContainers.size(); 1499 for (int i=0; i<N; i++) { 1500 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1501 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1502 } 1503 } 1504 if (resizeMode == 0) { 1505 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1506 } 1507 if ((lp.softInputMode & 1508 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1509 lp.softInputMode = (lp.softInputMode & 1510 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1511 resizeMode; 1512 params = lp; 1513 } 1514 } 1515 } 1516 1517 if (params != null) { 1518 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1519 if (!PixelFormat.formatHasAlpha(params.format)) { 1520 params.format = PixelFormat.TRANSLUCENT; 1521 } 1522 } 1523 mAttachInfo.mOverscanRequested = (params.flags 1524 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1525 } 1526 1527 if (mApplyInsetsRequested) { 1528 mApplyInsetsRequested = false; 1529 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1530 dispatchApplyInsets(host); 1531 if (mLayoutRequested) { 1532 // Short-circuit catching a new layout request here, so 1533 // we don't need to go through two layout passes when things 1534 // change due to fitting system windows, which can happen a lot. 1535 windowSizeMayChange |= measureHierarchy(host, lp, 1536 mView.getContext().getResources(), 1537 desiredWindowWidth, desiredWindowHeight); 1538 } 1539 } 1540 1541 if (layoutRequested) { 1542 // Clear this now, so that if anything requests a layout in the 1543 // rest of this function we will catch it and re-run a full 1544 // layout pass. 1545 mLayoutRequested = false; 1546 } 1547 1548 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1549 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1550 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1551 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1552 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1553 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1554 windowShouldResize |= mDragResizing; 1555 1556 // Determine whether to compute insets. 1557 // If there are no inset listeners remaining then we may still need to compute 1558 // insets in case the old insets were non-empty and must be reset. 1559 final boolean computesInternalInsets = 1560 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1561 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1562 1563 boolean insetsPending = false; 1564 int relayoutResult = 0; 1565 1566 boolean isViewVisible = viewVisibility == View.VISIBLE; 1567 if (mFirst || windowShouldResize || insetsChanged || 1568 viewVisibilityChanged || params != null) { 1569 1570 if (isViewVisible) { 1571 // If this window is giving internal insets to the window 1572 // manager, and it is being added or changing its visibility, 1573 // then we want to first give the window manager "fake" 1574 // insets to cause it to effectively ignore the content of 1575 // the window during layout. This avoids it briefly causing 1576 // other windows to resize/move based on the raw frame of the 1577 // window, waiting until we can finish laying out this window 1578 // and get back to the window manager with the ultimately 1579 // computed insets. 1580 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1581 } 1582 1583 if (mSurfaceHolder != null) { 1584 mSurfaceHolder.mSurfaceLock.lock(); 1585 mDrawingAllowed = true; 1586 } 1587 1588 boolean hwInitialized = false; 1589 boolean contentInsetsChanged = false; 1590 boolean hadSurface = mSurface.isValid(); 1591 1592 try { 1593 if (DEBUG_LAYOUT) { 1594 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1595 host.getMeasuredHeight() + ", params=" + params); 1596 } 1597 1598 if (mAttachInfo.mHardwareRenderer != null) { 1599 // relayoutWindow may decide to destroy mSurface. As that decision 1600 // happens in WindowManager service, we need to be defensive here 1601 // and stop using the surface in case it gets destroyed. 1602 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1603 // Animations were running so we need to push a frame 1604 // to resume them 1605 mDirty.set(0, 0, mWidth, mHeight); 1606 } 1607 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1608 } 1609 final int surfaceGenerationId = mSurface.getGenerationId(); 1610 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1611 1612 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1613 + " overscan=" + mPendingOverscanInsets.toShortString() 1614 + " content=" + mPendingContentInsets.toShortString() 1615 + " visible=" + mPendingVisibleInsets.toShortString() 1616 + " visible=" + mPendingStableInsets.toShortString() 1617 + " outsets=" + mPendingOutsets.toShortString() 1618 + " surface=" + mSurface); 1619 1620 if (mPendingConfiguration.seq != 0) { 1621 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1622 + mPendingConfiguration); 1623 updateConfiguration(mPendingConfiguration, !mFirst); 1624 mPendingConfiguration.seq = 0; 1625 } 1626 1627 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1628 mAttachInfo.mOverscanInsets); 1629 contentInsetsChanged = !mPendingContentInsets.equals( 1630 mAttachInfo.mContentInsets); 1631 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1632 mAttachInfo.mVisibleInsets); 1633 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1634 mAttachInfo.mStableInsets); 1635 final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets); 1636 if (contentInsetsChanged) { 1637 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1638 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1639 + mAttachInfo.mContentInsets); 1640 } 1641 if (overscanInsetsChanged) { 1642 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1643 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1644 + mAttachInfo.mOverscanInsets); 1645 // Need to relayout with content insets. 1646 contentInsetsChanged = true; 1647 } 1648 if (stableInsetsChanged) { 1649 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1650 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1651 + mAttachInfo.mStableInsets); 1652 // Need to relayout with content insets. 1653 contentInsetsChanged = true; 1654 } 1655 if (contentInsetsChanged || mLastSystemUiVisibility != 1656 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1657 || mLastOverscanRequested != mAttachInfo.mOverscanRequested 1658 || outsetsChanged) { 1659 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1660 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1661 mAttachInfo.mOutsets.set(mPendingOutsets); 1662 mApplyInsetsRequested = false; 1663 dispatchApplyInsets(host); 1664 } 1665 if (visibleInsetsChanged) { 1666 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1667 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1668 + mAttachInfo.mVisibleInsets); 1669 } 1670 1671 if (!hadSurface) { 1672 if (mSurface.isValid()) { 1673 // If we are creating a new surface, then we need to 1674 // completely redraw it. Also, when we get to the 1675 // point of drawing it we will hold off and schedule 1676 // a new traversal instead. This is so we can tell the 1677 // window manager about all of the windows being displayed 1678 // before actually drawing them, so it can display then 1679 // all at once. 1680 newSurface = true; 1681 mFullRedrawNeeded = true; 1682 mPreviousTransparentRegion.setEmpty(); 1683 1684 // Only initialize up-front if transparent regions are not 1685 // requested, otherwise defer to see if the entire window 1686 // will be transparent 1687 if (mAttachInfo.mHardwareRenderer != null) { 1688 try { 1689 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1690 mSurface); 1691 if (hwInitialized && (host.mPrivateFlags 1692 & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) { 1693 // Don't pre-allocate if transparent regions 1694 // are requested as they may not be needed 1695 mSurface.allocateBuffers(); 1696 } 1697 } catch (OutOfResourcesException e) { 1698 handleOutOfResourcesException(e); 1699 return; 1700 } 1701 } 1702 } 1703 } else if (!mSurface.isValid()) { 1704 // If the surface has been removed, then reset the scroll 1705 // positions. 1706 if (mLastScrolledFocus != null) { 1707 mLastScrolledFocus.clear(); 1708 } 1709 mScrollY = mCurScrollY = 0; 1710 if (mView instanceof RootViewSurfaceTaker) { 1711 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1712 } 1713 if (mScroller != null) { 1714 mScroller.abortAnimation(); 1715 } 1716 // Our surface is gone 1717 if (mAttachInfo.mHardwareRenderer != null && 1718 mAttachInfo.mHardwareRenderer.isEnabled()) { 1719 mAttachInfo.mHardwareRenderer.destroy(); 1720 } 1721 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1722 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1723 mFullRedrawNeeded = true; 1724 try { 1725 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1726 } catch (OutOfResourcesException e) { 1727 handleOutOfResourcesException(e); 1728 return; 1729 } 1730 } 1731 1732 final boolean dragResizing = (relayoutResult 1733 & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING) != 0; 1734 if (mDragResizing != dragResizing) { 1735 if (dragResizing) { 1736 startDragResizing(frame); 1737 } else { 1738 // We shouldn't come here, but if we come we should end the resize. 1739 endDragResizing(); 1740 } 1741 } 1742 if (!USE_MT_RENDERER) { 1743 if (dragResizing) { 1744 mCanvasOffsetX = mWinFrame.left; 1745 mCanvasOffsetY = mWinFrame.top; 1746 } else { 1747 mCanvasOffsetX = mCanvasOffsetY = 0; 1748 } 1749 } 1750 } catch (RemoteException e) { 1751 } 1752 1753 if (DEBUG_ORIENTATION) Log.v( 1754 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1755 1756 mAttachInfo.mWindowLeft = frame.left; 1757 mAttachInfo.mWindowTop = frame.top; 1758 1759 // !!FIXME!! This next section handles the case where we did not get the 1760 // window size we asked for. We should avoid this by getting a maximum size from 1761 // the window session beforehand. 1762 if (mWidth != frame.width() || mHeight != frame.height()) { 1763 mWidth = frame.width(); 1764 mHeight = frame.height(); 1765 } 1766 1767 if (mSurfaceHolder != null) { 1768 // The app owns the surface; tell it about what is going on. 1769 if (mSurface.isValid()) { 1770 // XXX .copyFrom() doesn't work! 1771 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1772 mSurfaceHolder.mSurface = mSurface; 1773 } 1774 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1775 mSurfaceHolder.mSurfaceLock.unlock(); 1776 if (mSurface.isValid()) { 1777 if (!hadSurface) { 1778 mSurfaceHolder.ungetCallbacks(); 1779 1780 mIsCreating = true; 1781 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1782 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1783 if (callbacks != null) { 1784 for (SurfaceHolder.Callback c : callbacks) { 1785 c.surfaceCreated(mSurfaceHolder); 1786 } 1787 } 1788 surfaceChanged = true; 1789 } 1790 if (surfaceChanged) { 1791 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1792 lp.format, mWidth, mHeight); 1793 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1794 if (callbacks != null) { 1795 for (SurfaceHolder.Callback c : callbacks) { 1796 c.surfaceChanged(mSurfaceHolder, lp.format, 1797 mWidth, mHeight); 1798 } 1799 } 1800 } 1801 mIsCreating = false; 1802 } else if (hadSurface) { 1803 mSurfaceHolder.ungetCallbacks(); 1804 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1805 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1806 if (callbacks != null) { 1807 for (SurfaceHolder.Callback c : callbacks) { 1808 c.surfaceDestroyed(mSurfaceHolder); 1809 } 1810 } 1811 mSurfaceHolder.mSurfaceLock.lock(); 1812 try { 1813 mSurfaceHolder.mSurface = new Surface(); 1814 } finally { 1815 mSurfaceHolder.mSurfaceLock.unlock(); 1816 } 1817 } 1818 } 1819 1820 final HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 1821 if (hardwareRenderer != null && hardwareRenderer.isEnabled()) { 1822 if (hwInitialized 1823 || mWidth != hardwareRenderer.getWidth() 1824 || mHeight != hardwareRenderer.getHeight()) { 1825 hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, 1826 mWindowAttributes.surfaceInsets); 1827 } 1828 } 1829 1830 if (!mStopped || mReportNextDraw) { 1831 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1832 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1833 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1834 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1835 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1836 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1837 1838 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1839 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1840 + " mHeight=" + mHeight 1841 + " measuredHeight=" + host.getMeasuredHeight() 1842 + " coveredInsetsChanged=" + contentInsetsChanged); 1843 1844 // Ask host how big it wants to be 1845 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1846 1847 // Implementation of weights from WindowManager.LayoutParams 1848 // We just grow the dimensions as needed and re-measure if 1849 // needs be 1850 int width = host.getMeasuredWidth(); 1851 int height = host.getMeasuredHeight(); 1852 boolean measureAgain = false; 1853 1854 if (lp.horizontalWeight > 0.0f) { 1855 width += (int) ((mWidth - width) * lp.horizontalWeight); 1856 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1857 MeasureSpec.EXACTLY); 1858 measureAgain = true; 1859 } 1860 if (lp.verticalWeight > 0.0f) { 1861 height += (int) ((mHeight - height) * lp.verticalWeight); 1862 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1863 MeasureSpec.EXACTLY); 1864 measureAgain = true; 1865 } 1866 1867 if (measureAgain) { 1868 if (DEBUG_LAYOUT) Log.v(TAG, 1869 "And hey let's measure once more: width=" + width 1870 + " height=" + height); 1871 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1872 } 1873 1874 layoutRequested = true; 1875 } 1876 } 1877 } else { 1878 // Not the first pass and no window/insets/visibility change but the window 1879 // may have moved and we need check that and if so to update the left and right 1880 // in the attach info. We translate only the window frame since on window move 1881 // the window manager tells us only for the new frame but the insets are the 1882 // same and we do not want to translate them more than once. 1883 1884 // TODO: Well, we are checking whether the frame has changed similarly 1885 // to how this is done for the insets. This is however incorrect since 1886 // the insets and the frame are translated. For example, the old frame 1887 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1888 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1889 // true since we are comparing a not translated value to a translated one. 1890 // This scenario is rare but we may want to fix that. 1891 1892 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1893 || mAttachInfo.mWindowTop != frame.top); 1894 if (windowMoved) { 1895 if (mTranslator != null) { 1896 mTranslator.translateRectInScreenToAppWinFrame(frame); 1897 } 1898 mAttachInfo.mWindowLeft = frame.left; 1899 mAttachInfo.mWindowTop = frame.top; 1900 1901 // Update the light position for the new window offsets. 1902 if (mAttachInfo.mHardwareRenderer != null) { 1903 mAttachInfo.mHardwareRenderer.setLightCenter(mAttachInfo); 1904 } 1905 } 1906 } 1907 1908 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1909 boolean triggerGlobalLayoutListener = didLayout 1910 || mAttachInfo.mRecomputeGlobalAttributes; 1911 if (didLayout) { 1912 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1913 1914 // By this point all views have been sized and positioned 1915 // We can compute the transparent area 1916 1917 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1918 // start out transparent 1919 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1920 host.getLocationInWindow(mTmpLocation); 1921 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1922 mTmpLocation[0] + host.mRight - host.mLeft, 1923 mTmpLocation[1] + host.mBottom - host.mTop); 1924 1925 host.gatherTransparentRegion(mTransparentRegion); 1926 if (mTranslator != null) { 1927 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1928 } 1929 1930 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1931 mPreviousTransparentRegion.set(mTransparentRegion); 1932 mFullRedrawNeeded = true; 1933 // reconfigure window manager 1934 try { 1935 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1936 } catch (RemoteException e) { 1937 } 1938 } 1939 } 1940 1941 if (DBG) { 1942 System.out.println("======================================"); 1943 System.out.println("performTraversals -- after setFrame"); 1944 host.debug(); 1945 } 1946 } 1947 1948 if (triggerGlobalLayoutListener) { 1949 mAttachInfo.mRecomputeGlobalAttributes = false; 1950 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1951 } 1952 1953 if (computesInternalInsets) { 1954 // Clear the original insets. 1955 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1956 insets.reset(); 1957 1958 // Compute new insets in place. 1959 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1960 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1961 1962 // Tell the window manager. 1963 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1964 mLastGivenInsets.set(insets); 1965 1966 // Translate insets to screen coordinates if needed. 1967 final Rect contentInsets; 1968 final Rect visibleInsets; 1969 final Region touchableRegion; 1970 if (mTranslator != null) { 1971 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1972 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1973 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1974 } else { 1975 contentInsets = insets.contentInsets; 1976 visibleInsets = insets.visibleInsets; 1977 touchableRegion = insets.touchableRegion; 1978 } 1979 1980 try { 1981 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1982 contentInsets, visibleInsets, touchableRegion); 1983 } catch (RemoteException e) { 1984 } 1985 } 1986 } 1987 1988 if (mFirst) { 1989 // handle first focus request 1990 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1991 + mView.hasFocus()); 1992 if (mView != null) { 1993 if (!mView.hasFocus()) { 1994 mView.requestFocus(View.FOCUS_FORWARD); 1995 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1996 + mView.findFocus()); 1997 } else { 1998 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1999 + mView.findFocus()); 2000 } 2001 } 2002 } 2003 2004 final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible; 2005 final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible; 2006 final boolean regainedFocus = hasWindowFocus && mLostWindowFocus; 2007 if (regainedFocus) { 2008 mLostWindowFocus = false; 2009 } else if (!hasWindowFocus && mHadWindowFocus) { 2010 mLostWindowFocus = true; 2011 } 2012 2013 if (changedVisibility || regainedFocus) { 2014 host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2015 } 2016 2017 mFirst = false; 2018 mWillDrawSoon = false; 2019 mNewSurfaceNeeded = false; 2020 mViewVisibility = viewVisibility; 2021 mHadWindowFocus = hasWindowFocus; 2022 2023 if (hasWindowFocus && !isInLocalFocusMode()) { 2024 final boolean imTarget = WindowManager.LayoutParams 2025 .mayUseInputMethod(mWindowAttributes.flags); 2026 if (imTarget != mLastWasImTarget) { 2027 mLastWasImTarget = imTarget; 2028 InputMethodManager imm = InputMethodManager.peekInstance(); 2029 if (imm != null && imTarget) { 2030 imm.onPreWindowFocus(mView, hasWindowFocus); 2031 imm.onPostWindowFocus(mView, mView.findFocus(), 2032 mWindowAttributes.softInputMode, 2033 !mHasHadWindowFocus, mWindowAttributes.flags); 2034 } 2035 } 2036 } 2037 2038 // Remember if we must report the next draw. 2039 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2040 mReportNextDraw = true; 2041 } 2042 2043 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible; 2044 2045 if (!cancelDraw && !newSurface) { 2046 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2047 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2048 mPendingTransitions.get(i).startChangingAnimations(); 2049 } 2050 mPendingTransitions.clear(); 2051 } 2052 2053 performDraw(); 2054 } else { 2055 if (isViewVisible) { 2056 // Try again 2057 scheduleTraversals(); 2058 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2059 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2060 mPendingTransitions.get(i).endChangingAnimations(); 2061 } 2062 mPendingTransitions.clear(); 2063 } 2064 } 2065 2066 mIsInTraversal = false; 2067 } 2068 2069 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2070 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2071 try { 2072 if (!mWindowSession.outOfMemory(mWindow) && 2073 Process.myUid() != Process.SYSTEM_UID) { 2074 Slog.w(TAG, "No processes killed for memory; killing self"); 2075 Process.killProcess(Process.myPid()); 2076 } 2077 } catch (RemoteException ex) { 2078 } 2079 mLayoutRequested = true; // ask wm for a new surface next time. 2080 } 2081 2082 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2083 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2084 try { 2085 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2086 } finally { 2087 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2088 } 2089 } 2090 2091 /** 2092 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2093 * is currently undergoing a layout pass. 2094 * 2095 * @return whether the view hierarchy is currently undergoing a layout pass 2096 */ 2097 boolean isInLayout() { 2098 return mInLayout; 2099 } 2100 2101 /** 2102 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2103 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2104 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2105 * all children in that container hierarchy are measured and laid out at the end of the layout 2106 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2107 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2108 * we check all of those views to see if any still have pending layout requests, which 2109 * indicates that they were not correctly handled by their container hierarchy. If that is 2110 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2111 * to blank containers, and force a second request/measure/layout pass in this frame. If 2112 * more requestLayout() calls are received during that second layout pass, we post those 2113 * requests to the next frame to avoid possible infinite loops. 2114 * 2115 * <p>The return value from this method indicates whether the request should proceed 2116 * (if it is a request during the first layout pass) or should be skipped and posted to the 2117 * next frame (if it is a request during the second layout pass).</p> 2118 * 2119 * @param view the view that requested the layout. 2120 * 2121 * @return true if request should proceed, false otherwise. 2122 */ 2123 boolean requestLayoutDuringLayout(final View view) { 2124 if (view.mParent == null || view.mAttachInfo == null) { 2125 // Would not normally trigger another layout, so just let it pass through as usual 2126 return true; 2127 } 2128 if (!mLayoutRequesters.contains(view)) { 2129 mLayoutRequesters.add(view); 2130 } 2131 if (!mHandlingLayoutInLayoutRequest) { 2132 // Let the request proceed normally; it will be processed in a second layout pass 2133 // if necessary 2134 return true; 2135 } else { 2136 // Don't let the request proceed during the second layout pass. 2137 // It will post to the next frame instead. 2138 return false; 2139 } 2140 } 2141 2142 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2143 int desiredWindowHeight) { 2144 mLayoutRequested = false; 2145 mScrollMayChange = true; 2146 mInLayout = true; 2147 2148 final View host = mView; 2149 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2150 Log.v(TAG, "Laying out " + host + " to (" + 2151 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2152 } 2153 2154 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2155 try { 2156 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2157 2158 mInLayout = false; 2159 int numViewsRequestingLayout = mLayoutRequesters.size(); 2160 if (numViewsRequestingLayout > 0) { 2161 // requestLayout() was called during layout. 2162 // If no layout-request flags are set on the requesting views, there is no problem. 2163 // If some requests are still pending, then we need to clear those flags and do 2164 // a full request/measure/layout pass to handle this situation. 2165 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2166 false); 2167 if (validLayoutRequesters != null) { 2168 // Set this flag to indicate that any further requests are happening during 2169 // the second pass, which may result in posting those requests to the next 2170 // frame instead 2171 mHandlingLayoutInLayoutRequest = true; 2172 2173 // Process fresh layout requests, then measure and layout 2174 int numValidRequests = validLayoutRequesters.size(); 2175 for (int i = 0; i < numValidRequests; ++i) { 2176 final View view = validLayoutRequesters.get(i); 2177 Log.w("View", "requestLayout() improperly called by " + view + 2178 " during layout: running second layout pass"); 2179 view.requestLayout(); 2180 } 2181 measureHierarchy(host, lp, mView.getContext().getResources(), 2182 desiredWindowWidth, desiredWindowHeight); 2183 mInLayout = true; 2184 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2185 2186 mHandlingLayoutInLayoutRequest = false; 2187 2188 // Check the valid requests again, this time without checking/clearing the 2189 // layout flags, since requests happening during the second pass get noop'd 2190 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2191 if (validLayoutRequesters != null) { 2192 final ArrayList<View> finalRequesters = validLayoutRequesters; 2193 // Post second-pass requests to the next frame 2194 getRunQueue().post(new Runnable() { 2195 @Override 2196 public void run() { 2197 int numValidRequests = finalRequesters.size(); 2198 for (int i = 0; i < numValidRequests; ++i) { 2199 final View view = finalRequesters.get(i); 2200 Log.w("View", "requestLayout() improperly called by " + view + 2201 " during second layout pass: posting in next frame"); 2202 view.requestLayout(); 2203 } 2204 } 2205 }); 2206 } 2207 } 2208 2209 } 2210 } finally { 2211 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2212 } 2213 mInLayout = false; 2214 } 2215 2216 /** 2217 * This method is called during layout when there have been calls to requestLayout() during 2218 * layout. It walks through the list of views that requested layout to determine which ones 2219 * still need it, based on visibility in the hierarchy and whether they have already been 2220 * handled (as is usually the case with ListView children). 2221 * 2222 * @param layoutRequesters The list of views that requested layout during layout 2223 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2224 * If so, the FORCE_LAYOUT flag was not set on requesters. 2225 * @return A list of the actual views that still need to be laid out. 2226 */ 2227 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2228 boolean secondLayoutRequests) { 2229 2230 int numViewsRequestingLayout = layoutRequesters.size(); 2231 ArrayList<View> validLayoutRequesters = null; 2232 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2233 View view = layoutRequesters.get(i); 2234 if (view != null && view.mAttachInfo != null && view.mParent != null && 2235 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2236 View.PFLAG_FORCE_LAYOUT)) { 2237 boolean gone = false; 2238 View parent = view; 2239 // Only trigger new requests for views in a non-GONE hierarchy 2240 while (parent != null) { 2241 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2242 gone = true; 2243 break; 2244 } 2245 if (parent.mParent instanceof View) { 2246 parent = (View) parent.mParent; 2247 } else { 2248 parent = null; 2249 } 2250 } 2251 if (!gone) { 2252 if (validLayoutRequesters == null) { 2253 validLayoutRequesters = new ArrayList<View>(); 2254 } 2255 validLayoutRequesters.add(view); 2256 } 2257 } 2258 } 2259 if (!secondLayoutRequests) { 2260 // If we're checking the layout flags, then we need to clean them up also 2261 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2262 View view = layoutRequesters.get(i); 2263 while (view != null && 2264 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2265 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2266 if (view.mParent instanceof View) { 2267 view = (View) view.mParent; 2268 } else { 2269 view = null; 2270 } 2271 } 2272 } 2273 } 2274 layoutRequesters.clear(); 2275 return validLayoutRequesters; 2276 } 2277 2278 @Override 2279 public void requestTransparentRegion(View child) { 2280 // the test below should not fail unless someone is messing with us 2281 checkThread(); 2282 if (mView == child) { 2283 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2284 // Need to make sure we re-evaluate the window attributes next 2285 // time around, to ensure the window has the correct format. 2286 mWindowAttributesChanged = true; 2287 mWindowAttributesChangesFlag = 0; 2288 requestLayout(); 2289 } 2290 } 2291 2292 /** 2293 * Figures out the measure spec for the root view in a window based on it's 2294 * layout params. 2295 * 2296 * @param windowSize 2297 * The available width or height of the window 2298 * 2299 * @param rootDimension 2300 * The layout params for one dimension (width or height) of the 2301 * window. 2302 * 2303 * @return The measure spec to use to measure the root view. 2304 */ 2305 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2306 int measureSpec; 2307 switch (rootDimension) { 2308 2309 case ViewGroup.LayoutParams.MATCH_PARENT: 2310 // Window can't resize. Force root view to be windowSize. 2311 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2312 break; 2313 case ViewGroup.LayoutParams.WRAP_CONTENT: 2314 // Window can resize. Set max size for root view. 2315 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2316 break; 2317 default: 2318 // Window wants to be an exact size. Force root view to be that size. 2319 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2320 break; 2321 } 2322 return measureSpec; 2323 } 2324 2325 int mHardwareXOffset; 2326 int mHardwareYOffset; 2327 2328 @Override 2329 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2330 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2331 } 2332 2333 @Override 2334 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2335 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2336 } 2337 2338 /** 2339 * @hide 2340 */ 2341 void outputDisplayList(View view) { 2342 view.mRenderNode.output(); 2343 if (mAttachInfo.mHardwareRenderer != null) { 2344 ((ThreadedRenderer)mAttachInfo.mHardwareRenderer).serializeDisplayListTree(); 2345 } 2346 } 2347 2348 /** 2349 * @see #PROPERTY_PROFILE_RENDERING 2350 */ 2351 private void profileRendering(boolean enabled) { 2352 if (mProfileRendering) { 2353 mRenderProfilingEnabled = enabled; 2354 2355 if (mRenderProfiler != null) { 2356 mChoreographer.removeFrameCallback(mRenderProfiler); 2357 } 2358 if (mRenderProfilingEnabled) { 2359 if (mRenderProfiler == null) { 2360 mRenderProfiler = new Choreographer.FrameCallback() { 2361 @Override 2362 public void doFrame(long frameTimeNanos) { 2363 mDirty.set(0, 0, mWidth, mHeight); 2364 scheduleTraversals(); 2365 if (mRenderProfilingEnabled) { 2366 mChoreographer.postFrameCallback(mRenderProfiler); 2367 } 2368 } 2369 }; 2370 } 2371 mChoreographer.postFrameCallback(mRenderProfiler); 2372 } else { 2373 mRenderProfiler = null; 2374 } 2375 } 2376 } 2377 2378 /** 2379 * Called from draw() when DEBUG_FPS is enabled 2380 */ 2381 private void trackFPS() { 2382 // Tracks frames per second drawn. First value in a series of draws may be bogus 2383 // because it down not account for the intervening idle time 2384 long nowTime = System.currentTimeMillis(); 2385 if (mFpsStartTime < 0) { 2386 mFpsStartTime = mFpsPrevTime = nowTime; 2387 mFpsNumFrames = 0; 2388 } else { 2389 ++mFpsNumFrames; 2390 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2391 long frameTime = nowTime - mFpsPrevTime; 2392 long totalTime = nowTime - mFpsStartTime; 2393 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2394 mFpsPrevTime = nowTime; 2395 if (totalTime > 1000) { 2396 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2397 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2398 mFpsStartTime = nowTime; 2399 mFpsNumFrames = 0; 2400 } 2401 } 2402 } 2403 2404 private void performDraw() { 2405 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2406 return; 2407 } 2408 2409 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2410 mFullRedrawNeeded = false; 2411 2412 mIsDrawing = true; 2413 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2414 try { 2415 draw(fullRedrawNeeded); 2416 } finally { 2417 mIsDrawing = false; 2418 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2419 } 2420 2421 // For whatever reason we didn't create a HardwareRenderer, end any 2422 // hardware animations that are now dangling 2423 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2424 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2425 for (int i = 0; i < count; i++) { 2426 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2427 } 2428 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2429 } 2430 2431 if (mReportNextDraw) { 2432 mReportNextDraw = false; 2433 2434 // if we're using multi-thread renderer, wait for the window frame draws 2435 if (mWindowDrawCountDown != null) { 2436 try { 2437 mWindowDrawCountDown.await(); 2438 } catch (InterruptedException e) { 2439 Log.e(TAG, "Window redraw count down interruped!"); 2440 } 2441 mWindowDrawCountDown = null; 2442 } 2443 2444 if (mAttachInfo.mHardwareRenderer != null) { 2445 mAttachInfo.mHardwareRenderer.fence(); 2446 } 2447 2448 if (LOCAL_LOGV) { 2449 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2450 } 2451 if (mSurfaceHolder != null && mSurface.isValid()) { 2452 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2453 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2454 if (callbacks != null) { 2455 for (SurfaceHolder.Callback c : callbacks) { 2456 if (c instanceof SurfaceHolder.Callback2) { 2457 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2458 mSurfaceHolder); 2459 } 2460 } 2461 } 2462 } 2463 try { 2464 mWindowSession.finishDrawing(mWindow); 2465 } catch (RemoteException e) { 2466 } 2467 } 2468 } 2469 2470 private void draw(boolean fullRedrawNeeded) { 2471 Surface surface = mSurface; 2472 if (!surface.isValid()) { 2473 return; 2474 } 2475 2476 if (DEBUG_FPS) { 2477 trackFPS(); 2478 } 2479 2480 if (!sFirstDrawComplete) { 2481 synchronized (sFirstDrawHandlers) { 2482 sFirstDrawComplete = true; 2483 final int count = sFirstDrawHandlers.size(); 2484 for (int i = 0; i< count; i++) { 2485 mHandler.post(sFirstDrawHandlers.get(i)); 2486 } 2487 } 2488 } 2489 2490 scrollToRectOrFocus(null, false); 2491 2492 if (mAttachInfo.mViewScrollChanged) { 2493 mAttachInfo.mViewScrollChanged = false; 2494 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2495 } 2496 2497 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2498 final int curScrollY; 2499 if (animating) { 2500 curScrollY = mScroller.getCurrY(); 2501 } else { 2502 curScrollY = mScrollY; 2503 } 2504 if (mCurScrollY != curScrollY) { 2505 mCurScrollY = curScrollY; 2506 fullRedrawNeeded = true; 2507 if (mView instanceof RootViewSurfaceTaker) { 2508 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2509 } 2510 } 2511 2512 final float appScale = mAttachInfo.mApplicationScale; 2513 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2514 2515 int resizeAlpha = 0; 2516 2517 final Rect dirty = mDirty; 2518 if (mSurfaceHolder != null) { 2519 // The app owns the surface, we won't draw. 2520 dirty.setEmpty(); 2521 if (animating && mScroller != null) { 2522 mScroller.abortAnimation(); 2523 } 2524 return; 2525 } 2526 2527 if (fullRedrawNeeded) { 2528 mAttachInfo.mIgnoreDirtyState = true; 2529 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2530 } 2531 2532 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2533 Log.v(TAG, "Draw " + mView + "/" 2534 + mWindowAttributes.getTitle() 2535 + ": dirty={" + dirty.left + "," + dirty.top 2536 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2537 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2538 appScale + ", width=" + mWidth + ", height=" + mHeight); 2539 } 2540 2541 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2542 2543 int xOffset = -mCanvasOffsetX; 2544 int yOffset = -mCanvasOffsetY + curScrollY; 2545 final WindowManager.LayoutParams params = mWindowAttributes; 2546 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2547 if (surfaceInsets != null) { 2548 xOffset -= surfaceInsets.left; 2549 yOffset -= surfaceInsets.top; 2550 2551 // Offset dirty rect for surface insets. 2552 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2553 } 2554 2555 boolean accessibilityFocusDirty = false; 2556 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2557 if (drawable != null) { 2558 final Rect bounds = mAttachInfo.mTmpInvalRect; 2559 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2560 if (!hasFocus) { 2561 bounds.setEmpty(); 2562 } 2563 if (!bounds.equals(drawable.getBounds())) { 2564 accessibilityFocusDirty = true; 2565 } 2566 } 2567 2568 mAttachInfo.mDrawingTime = 2569 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2570 2571 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2572 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2573 // If accessibility focus moved, always invalidate the root. 2574 boolean invalidateRoot = accessibilityFocusDirty; 2575 2576 // Draw with hardware renderer. 2577 mIsAnimating = false; 2578 2579 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2580 mHardwareYOffset = yOffset; 2581 mHardwareXOffset = xOffset; 2582 invalidateRoot = true; 2583 } 2584 2585 if (invalidateRoot) { 2586 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2587 } 2588 2589 dirty.setEmpty(); 2590 2591 // Stage the content drawn size now. It will be transferred to the renderer 2592 // shortly before the draw commands get send to the renderer. 2593 final boolean updated = updateContentDrawBounds(); 2594 2595 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2596 2597 if (updated) { 2598 requestDrawWindow(); 2599 } 2600 } else { 2601 // If we get here with a disabled & requested hardware renderer, something went 2602 // wrong (an invalidate posted right before we destroyed the hardware surface 2603 // for instance) so we should just bail out. Locking the surface with software 2604 // rendering at this point would lock it forever and prevent hardware renderer 2605 // from doing its job when it comes back. 2606 // Before we request a new frame we must however attempt to reinitiliaze the 2607 // hardware renderer if it's in requested state. This would happen after an 2608 // eglTerminate() for instance. 2609 if (mAttachInfo.mHardwareRenderer != null && 2610 !mAttachInfo.mHardwareRenderer.isEnabled() && 2611 mAttachInfo.mHardwareRenderer.isRequested()) { 2612 2613 try { 2614 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2615 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 2616 } catch (OutOfResourcesException e) { 2617 handleOutOfResourcesException(e); 2618 return; 2619 } 2620 2621 mFullRedrawNeeded = true; 2622 scheduleTraversals(); 2623 return; 2624 } 2625 2626 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2627 return; 2628 } 2629 } 2630 } 2631 2632 if (animating) { 2633 mFullRedrawNeeded = true; 2634 scheduleTraversals(); 2635 } 2636 } 2637 2638 /** 2639 * @return true if drawing was successful, false if an error occurred 2640 */ 2641 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2642 boolean scalingRequired, Rect dirty) { 2643 2644 // Draw with software renderer. 2645 final Canvas canvas; 2646 try { 2647 final int left = dirty.left; 2648 final int top = dirty.top; 2649 final int right = dirty.right; 2650 final int bottom = dirty.bottom; 2651 2652 canvas = mSurface.lockCanvas(dirty); 2653 2654 // The dirty rectangle can be modified by Surface.lockCanvas() 2655 //noinspection ConstantConditions 2656 if (left != dirty.left || top != dirty.top || right != dirty.right 2657 || bottom != dirty.bottom) { 2658 attachInfo.mIgnoreDirtyState = true; 2659 } 2660 2661 // TODO: Do this in native 2662 canvas.setDensity(mDensity); 2663 } catch (Surface.OutOfResourcesException e) { 2664 handleOutOfResourcesException(e); 2665 return false; 2666 } catch (IllegalArgumentException e) { 2667 Log.e(TAG, "Could not lock surface", e); 2668 // Don't assume this is due to out of memory, it could be 2669 // something else, and if it is something else then we could 2670 // kill stuff (or ourself) for no reason. 2671 mLayoutRequested = true; // ask wm for a new surface next time. 2672 return false; 2673 } 2674 2675 try { 2676 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2677 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2678 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2679 //canvas.drawARGB(255, 255, 0, 0); 2680 } 2681 2682 // If this bitmap's format includes an alpha channel, we 2683 // need to clear it before drawing so that the child will 2684 // properly re-composite its drawing on a transparent 2685 // background. This automatically respects the clip/dirty region 2686 // or 2687 // If we are applying an offset, we need to clear the area 2688 // where the offset doesn't appear to avoid having garbage 2689 // left in the blank areas. 2690 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2691 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2692 } 2693 2694 dirty.setEmpty(); 2695 mIsAnimating = false; 2696 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2697 2698 if (DEBUG_DRAW) { 2699 Context cxt = mView.getContext(); 2700 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2701 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2702 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2703 } 2704 try { 2705 canvas.translate(-xoff, -yoff); 2706 if (mTranslator != null) { 2707 mTranslator.translateCanvas(canvas); 2708 } 2709 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2710 attachInfo.mSetIgnoreDirtyState = false; 2711 2712 mView.draw(canvas); 2713 2714 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2715 } finally { 2716 if (!attachInfo.mSetIgnoreDirtyState) { 2717 // Only clear the flag if it was not set during the mView.draw() call 2718 attachInfo.mIgnoreDirtyState = false; 2719 } 2720 } 2721 } finally { 2722 try { 2723 surface.unlockCanvasAndPost(canvas); 2724 } catch (IllegalArgumentException e) { 2725 Log.e(TAG, "Could not unlock surface", e); 2726 mLayoutRequested = true; // ask wm for a new surface next time. 2727 //noinspection ReturnInsideFinallyBlock 2728 return false; 2729 } 2730 2731 if (LOCAL_LOGV) { 2732 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2733 } 2734 } 2735 return true; 2736 } 2737 2738 /** 2739 * We want to draw a highlight around the current accessibility focused. 2740 * Since adding a style for all possible view is not a viable option we 2741 * have this specialized drawing method. 2742 * 2743 * Note: We are doing this here to be able to draw the highlight for 2744 * virtual views in addition to real ones. 2745 * 2746 * @param canvas The canvas on which to draw. 2747 */ 2748 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2749 final Rect bounds = mAttachInfo.mTmpInvalRect; 2750 if (getAccessibilityFocusedRect(bounds)) { 2751 final Drawable drawable = getAccessibilityFocusedDrawable(); 2752 if (drawable != null) { 2753 drawable.setBounds(bounds); 2754 drawable.draw(canvas); 2755 } 2756 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2757 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2758 } 2759 } 2760 2761 private boolean getAccessibilityFocusedRect(Rect bounds) { 2762 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2763 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2764 return false; 2765 } 2766 2767 final View host = mAccessibilityFocusedHost; 2768 if (host == null || host.mAttachInfo == null) { 2769 return false; 2770 } 2771 2772 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2773 if (provider == null) { 2774 host.getBoundsOnScreen(bounds, true); 2775 } else if (mAccessibilityFocusedVirtualView != null) { 2776 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2777 } else { 2778 return false; 2779 } 2780 2781 // Transform the rect into window-relative coordinates. 2782 final AttachInfo attachInfo = mAttachInfo; 2783 bounds.offset(0, attachInfo.mViewRootImpl.mScrollY); 2784 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2785 if (!bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, 2786 attachInfo.mViewRootImpl.mHeight)) { 2787 // If no intersection, set bounds to empty. 2788 bounds.setEmpty(); 2789 } 2790 return !bounds.isEmpty(); 2791 } 2792 2793 private Drawable getAccessibilityFocusedDrawable() { 2794 // Lazily load the accessibility focus drawable. 2795 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2796 final TypedValue value = new TypedValue(); 2797 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2798 R.attr.accessibilityFocusedDrawable, value, true); 2799 if (resolved) { 2800 mAttachInfo.mAccessibilityFocusDrawable = 2801 mView.mContext.getDrawable(value.resourceId); 2802 } 2803 } 2804 return mAttachInfo.mAccessibilityFocusDrawable; 2805 } 2806 2807 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2808 final Rect ci = mAttachInfo.mContentInsets; 2809 final Rect vi = mAttachInfo.mVisibleInsets; 2810 int scrollY = 0; 2811 boolean handled = false; 2812 2813 if (vi.left > ci.left || vi.top > ci.top 2814 || vi.right > ci.right || vi.bottom > ci.bottom) { 2815 // We'll assume that we aren't going to change the scroll 2816 // offset, since we want to avoid that unless it is actually 2817 // going to make the focus visible... otherwise we scroll 2818 // all over the place. 2819 scrollY = mScrollY; 2820 // We can be called for two different situations: during a draw, 2821 // to update the scroll position if the focus has changed (in which 2822 // case 'rectangle' is null), or in response to a 2823 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2824 // is non-null and we just want to scroll to whatever that 2825 // rectangle is). 2826 final View focus = mView.findFocus(); 2827 if (focus == null) { 2828 return false; 2829 } 2830 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2831 if (focus != lastScrolledFocus) { 2832 // If the focus has changed, then ignore any requests to scroll 2833 // to a rectangle; first we want to make sure the entire focus 2834 // view is visible. 2835 rectangle = null; 2836 } 2837 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2838 + " rectangle=" + rectangle + " ci=" + ci 2839 + " vi=" + vi); 2840 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2841 // Optimization: if the focus hasn't changed since last 2842 // time, and no layout has happened, then just leave things 2843 // as they are. 2844 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2845 + mScrollY + " vi=" + vi.toShortString()); 2846 } else { 2847 // We need to determine if the currently focused view is 2848 // within the visible part of the window and, if not, apply 2849 // a pan so it can be seen. 2850 mLastScrolledFocus = new WeakReference<View>(focus); 2851 mScrollMayChange = false; 2852 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2853 // Try to find the rectangle from the focus view. 2854 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2855 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2856 + mView.getWidth() + " h=" + mView.getHeight() 2857 + " ci=" + ci.toShortString() 2858 + " vi=" + vi.toShortString()); 2859 if (rectangle == null) { 2860 focus.getFocusedRect(mTempRect); 2861 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2862 + ": focusRect=" + mTempRect.toShortString()); 2863 if (mView instanceof ViewGroup) { 2864 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2865 focus, mTempRect); 2866 } 2867 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2868 "Focus in window: focusRect=" 2869 + mTempRect.toShortString() 2870 + " visRect=" + mVisRect.toShortString()); 2871 } else { 2872 mTempRect.set(rectangle); 2873 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2874 "Request scroll to rect: " 2875 + mTempRect.toShortString() 2876 + " visRect=" + mVisRect.toShortString()); 2877 } 2878 if (mTempRect.intersect(mVisRect)) { 2879 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2880 "Focus window visible rect: " 2881 + mTempRect.toShortString()); 2882 if (mTempRect.height() > 2883 (mView.getHeight()-vi.top-vi.bottom)) { 2884 // If the focus simply is not going to fit, then 2885 // best is probably just to leave things as-is. 2886 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2887 "Too tall; leaving scrollY=" + scrollY); 2888 } else if ((mTempRect.top-scrollY) < vi.top) { 2889 scrollY -= vi.top - (mTempRect.top-scrollY); 2890 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2891 "Top covered; scrollY=" + scrollY); 2892 } else if ((mTempRect.bottom-scrollY) 2893 > (mView.getHeight()-vi.bottom)) { 2894 scrollY += (mTempRect.bottom-scrollY) 2895 - (mView.getHeight()-vi.bottom); 2896 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2897 "Bottom covered; scrollY=" + scrollY); 2898 } 2899 handled = true; 2900 } 2901 } 2902 } 2903 } 2904 2905 if (scrollY != mScrollY) { 2906 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2907 + mScrollY + " , new=" + scrollY); 2908 if (!immediate) { 2909 if (mScroller == null) { 2910 mScroller = new Scroller(mView.getContext()); 2911 } 2912 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2913 } else if (mScroller != null) { 2914 mScroller.abortAnimation(); 2915 } 2916 mScrollY = scrollY; 2917 } 2918 2919 return handled; 2920 } 2921 2922 /** 2923 * @hide 2924 */ 2925 public View getAccessibilityFocusedHost() { 2926 return mAccessibilityFocusedHost; 2927 } 2928 2929 /** 2930 * @hide 2931 */ 2932 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2933 return mAccessibilityFocusedVirtualView; 2934 } 2935 2936 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2937 // If we have a virtual view with accessibility focus we need 2938 // to clear the focus and invalidate the virtual view bounds. 2939 if (mAccessibilityFocusedVirtualView != null) { 2940 2941 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2942 View focusHost = mAccessibilityFocusedHost; 2943 2944 // Wipe the state of the current accessibility focus since 2945 // the call into the provider to clear accessibility focus 2946 // will fire an accessibility event which will end up calling 2947 // this method and we want to have clean state when this 2948 // invocation happens. 2949 mAccessibilityFocusedHost = null; 2950 mAccessibilityFocusedVirtualView = null; 2951 2952 // Clear accessibility focus on the host after clearing state since 2953 // this method may be reentrant. 2954 focusHost.clearAccessibilityFocusNoCallbacks(); 2955 2956 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2957 if (provider != null) { 2958 // Invalidate the area of the cleared accessibility focus. 2959 focusNode.getBoundsInParent(mTempRect); 2960 focusHost.invalidate(mTempRect); 2961 // Clear accessibility focus in the virtual node. 2962 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2963 focusNode.getSourceNodeId()); 2964 provider.performAction(virtualNodeId, 2965 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2966 } 2967 focusNode.recycle(); 2968 } 2969 if (mAccessibilityFocusedHost != null) { 2970 // Clear accessibility focus in the view. 2971 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2972 } 2973 2974 // Set the new focus host and node. 2975 mAccessibilityFocusedHost = view; 2976 mAccessibilityFocusedVirtualView = node; 2977 2978 if (mAttachInfo.mHardwareRenderer != null) { 2979 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2980 } 2981 } 2982 2983 @Override 2984 public void requestChildFocus(View child, View focused) { 2985 if (DEBUG_INPUT_RESIZE) { 2986 Log.v(TAG, "Request child focus: focus now " + focused); 2987 } 2988 checkThread(); 2989 scheduleTraversals(); 2990 } 2991 2992 @Override 2993 public void clearChildFocus(View child) { 2994 if (DEBUG_INPUT_RESIZE) { 2995 Log.v(TAG, "Clearing child focus"); 2996 } 2997 checkThread(); 2998 scheduleTraversals(); 2999 } 3000 3001 @Override 3002 public ViewParent getParentForAccessibility() { 3003 return null; 3004 } 3005 3006 @Override 3007 public void focusableViewAvailable(View v) { 3008 checkThread(); 3009 if (mView != null) { 3010 if (!mView.hasFocus()) { 3011 v.requestFocus(); 3012 } else { 3013 // the one case where will transfer focus away from the current one 3014 // is if the current view is a view group that prefers to give focus 3015 // to its children first AND the view is a descendant of it. 3016 View focused = mView.findFocus(); 3017 if (focused instanceof ViewGroup) { 3018 ViewGroup group = (ViewGroup) focused; 3019 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3020 && isViewDescendantOf(v, focused)) { 3021 v.requestFocus(); 3022 } 3023 } 3024 } 3025 } 3026 } 3027 3028 @Override 3029 public void recomputeViewAttributes(View child) { 3030 checkThread(); 3031 if (mView == child) { 3032 mAttachInfo.mRecomputeGlobalAttributes = true; 3033 if (!mWillDrawSoon) { 3034 scheduleTraversals(); 3035 } 3036 } 3037 } 3038 3039 void dispatchDetachedFromWindow() { 3040 if (mView != null && mView.mAttachInfo != null) { 3041 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3042 mView.dispatchDetachedFromWindow(); 3043 } 3044 3045 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3046 mAccessibilityManager.removeAccessibilityStateChangeListener( 3047 mAccessibilityInteractionConnectionManager); 3048 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3049 mHighContrastTextManager); 3050 removeSendWindowContentChangedCallback(); 3051 3052 destroyHardwareRenderer(); 3053 3054 setAccessibilityFocus(null, null); 3055 3056 mView.assignParent(null); 3057 mView = null; 3058 mAttachInfo.mRootView = null; 3059 3060 mSurface.release(); 3061 3062 if (mInputQueueCallback != null && mInputQueue != null) { 3063 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3064 mInputQueue.dispose(); 3065 mInputQueueCallback = null; 3066 mInputQueue = null; 3067 } 3068 if (mInputEventReceiver != null) { 3069 mInputEventReceiver.dispose(); 3070 mInputEventReceiver = null; 3071 } 3072 try { 3073 mWindowSession.remove(mWindow); 3074 } catch (RemoteException e) { 3075 } 3076 3077 // Dispose the input channel after removing the window so the Window Manager 3078 // doesn't interpret the input channel being closed as an abnormal termination. 3079 if (mInputChannel != null) { 3080 mInputChannel.dispose(); 3081 mInputChannel = null; 3082 } 3083 3084 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3085 3086 unscheduleTraversals(); 3087 } 3088 3089 void updateConfiguration(Configuration config, boolean force) { 3090 if (DEBUG_CONFIGURATION) Log.v(TAG, 3091 "Applying new config to window " 3092 + mWindowAttributes.getTitle() 3093 + ": " + config); 3094 3095 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3096 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3097 config = new Configuration(config); 3098 ci.applyToConfiguration(mNoncompatDensity, config); 3099 } 3100 3101 synchronized (sConfigCallbacks) { 3102 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3103 sConfigCallbacks.get(i).onConfigurationChanged(config); 3104 } 3105 } 3106 if (mView != null) { 3107 // At this point the resources have been updated to 3108 // have the most recent config, whatever that is. Use 3109 // the one in them which may be newer. 3110 config = mView.getResources().getConfiguration(); 3111 if (force || mLastConfiguration.diff(config) != 0) { 3112 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3113 final int currentLayoutDirection = config.getLayoutDirection(); 3114 mLastConfiguration.setTo(config); 3115 if (lastLayoutDirection != currentLayoutDirection && 3116 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3117 mView.setLayoutDirection(currentLayoutDirection); 3118 } 3119 mView.dispatchConfigurationChanged(config); 3120 } 3121 } 3122 } 3123 3124 /** 3125 * Return true if child is an ancestor of parent, (or equal to the parent). 3126 */ 3127 public static boolean isViewDescendantOf(View child, View parent) { 3128 if (child == parent) { 3129 return true; 3130 } 3131 3132 final ViewParent theParent = child.getParent(); 3133 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3134 } 3135 3136 private static void forceLayout(View view) { 3137 view.forceLayout(); 3138 if (view instanceof ViewGroup) { 3139 ViewGroup group = (ViewGroup) view; 3140 final int count = group.getChildCount(); 3141 for (int i = 0; i < count; i++) { 3142 forceLayout(group.getChildAt(i)); 3143 } 3144 } 3145 } 3146 3147 private final static int MSG_INVALIDATE = 1; 3148 private final static int MSG_INVALIDATE_RECT = 2; 3149 private final static int MSG_DIE = 3; 3150 private final static int MSG_RESIZED = 4; 3151 private final static int MSG_RESIZED_REPORT = 5; 3152 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3153 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3154 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3155 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3156 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3157 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3158 private final static int MSG_CHECK_FOCUS = 13; 3159 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3160 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3161 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3162 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3163 private final static int MSG_UPDATE_CONFIGURATION = 18; 3164 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3165 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3166 private final static int MSG_INVALIDATE_WORLD = 22; 3167 private final static int MSG_WINDOW_MOVED = 23; 3168 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24; 3169 private final static int MSG_DISPATCH_WINDOW_SHOWN = 25; 3170 3171 final class ViewRootHandler extends Handler { 3172 @Override 3173 public String getMessageName(Message message) { 3174 switch (message.what) { 3175 case MSG_INVALIDATE: 3176 return "MSG_INVALIDATE"; 3177 case MSG_INVALIDATE_RECT: 3178 return "MSG_INVALIDATE_RECT"; 3179 case MSG_DIE: 3180 return "MSG_DIE"; 3181 case MSG_RESIZED: 3182 return "MSG_RESIZED"; 3183 case MSG_RESIZED_REPORT: 3184 return "MSG_RESIZED_REPORT"; 3185 case MSG_WINDOW_FOCUS_CHANGED: 3186 return "MSG_WINDOW_FOCUS_CHANGED"; 3187 case MSG_DISPATCH_INPUT_EVENT: 3188 return "MSG_DISPATCH_INPUT_EVENT"; 3189 case MSG_DISPATCH_APP_VISIBILITY: 3190 return "MSG_DISPATCH_APP_VISIBILITY"; 3191 case MSG_DISPATCH_GET_NEW_SURFACE: 3192 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3193 case MSG_DISPATCH_KEY_FROM_IME: 3194 return "MSG_DISPATCH_KEY_FROM_IME"; 3195 case MSG_FINISH_INPUT_CONNECTION: 3196 return "MSG_FINISH_INPUT_CONNECTION"; 3197 case MSG_CHECK_FOCUS: 3198 return "MSG_CHECK_FOCUS"; 3199 case MSG_CLOSE_SYSTEM_DIALOGS: 3200 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3201 case MSG_DISPATCH_DRAG_EVENT: 3202 return "MSG_DISPATCH_DRAG_EVENT"; 3203 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3204 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3205 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3206 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3207 case MSG_UPDATE_CONFIGURATION: 3208 return "MSG_UPDATE_CONFIGURATION"; 3209 case MSG_PROCESS_INPUT_EVENTS: 3210 return "MSG_PROCESS_INPUT_EVENTS"; 3211 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3212 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3213 case MSG_WINDOW_MOVED: 3214 return "MSG_WINDOW_MOVED"; 3215 case MSG_SYNTHESIZE_INPUT_EVENT: 3216 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3217 case MSG_DISPATCH_WINDOW_SHOWN: 3218 return "MSG_DISPATCH_WINDOW_SHOWN"; 3219 } 3220 return super.getMessageName(message); 3221 } 3222 3223 @Override 3224 public void handleMessage(Message msg) { 3225 switch (msg.what) { 3226 case MSG_INVALIDATE: 3227 ((View) msg.obj).invalidate(); 3228 break; 3229 case MSG_INVALIDATE_RECT: 3230 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3231 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3232 info.recycle(); 3233 break; 3234 case MSG_PROCESS_INPUT_EVENTS: 3235 mProcessInputEventsScheduled = false; 3236 doProcessInputEvents(); 3237 break; 3238 case MSG_DISPATCH_APP_VISIBILITY: 3239 handleAppVisibility(msg.arg1 != 0); 3240 break; 3241 case MSG_DISPATCH_GET_NEW_SURFACE: 3242 handleGetNewSurface(); 3243 break; 3244 case MSG_RESIZED: { 3245 // Recycled in the fall through... 3246 SomeArgs args = (SomeArgs) msg.obj; 3247 if (mWinFrame.equals(args.arg1) 3248 && mPendingOverscanInsets.equals(args.arg5) 3249 && mPendingContentInsets.equals(args.arg2) 3250 && mPendingStableInsets.equals(args.arg6) 3251 && mPendingVisibleInsets.equals(args.arg3) 3252 && mPendingOutsets.equals(args.arg7) 3253 && args.arg4 == null) { 3254 break; 3255 } 3256 } // fall through... 3257 case MSG_RESIZED_REPORT: 3258 if (mAdded) { 3259 SomeArgs args = (SomeArgs) msg.obj; 3260 3261 Configuration config = (Configuration) args.arg4; 3262 if (config != null) { 3263 updateConfiguration(config, false); 3264 } 3265 3266 mWinFrame.set((Rect) args.arg1); 3267 mPendingOverscanInsets.set((Rect) args.arg5); 3268 mPendingContentInsets.set((Rect) args.arg2); 3269 mPendingStableInsets.set((Rect) args.arg6); 3270 mPendingVisibleInsets.set((Rect) args.arg3); 3271 mPendingOutsets.set((Rect) args.arg7); 3272 3273 args.recycle(); 3274 3275 if (msg.what == MSG_RESIZED_REPORT) { 3276 mReportNextDraw = true; 3277 } 3278 3279 if (mView != null) { 3280 forceLayout(mView); 3281 } 3282 3283 requestLayout(); 3284 } 3285 break; 3286 case MSG_WINDOW_MOVED: 3287 if (mAdded) { 3288 final int w = mWinFrame.width(); 3289 final int h = mWinFrame.height(); 3290 final int l = msg.arg1; 3291 final int t = msg.arg2; 3292 mWinFrame.left = l; 3293 mWinFrame.right = l + w; 3294 mWinFrame.top = t; 3295 mWinFrame.bottom = t + h; 3296 3297 if (mView != null) { 3298 forceLayout(mView); 3299 } 3300 requestLayout(); 3301 } 3302 break; 3303 case MSG_WINDOW_FOCUS_CHANGED: { 3304 if (mAdded) { 3305 boolean hasWindowFocus = msg.arg1 != 0; 3306 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3307 3308 profileRendering(hasWindowFocus); 3309 3310 if (hasWindowFocus) { 3311 boolean inTouchMode = msg.arg2 != 0; 3312 ensureTouchModeLocally(inTouchMode); 3313 3314 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3315 mFullRedrawNeeded = true; 3316 try { 3317 final WindowManager.LayoutParams lp = mWindowAttributes; 3318 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3319 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3320 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 3321 } catch (OutOfResourcesException e) { 3322 Log.e(TAG, "OutOfResourcesException locking surface", e); 3323 try { 3324 if (!mWindowSession.outOfMemory(mWindow)) { 3325 Slog.w(TAG, "No processes killed for memory; killing self"); 3326 Process.killProcess(Process.myPid()); 3327 } 3328 } catch (RemoteException ex) { 3329 } 3330 // Retry in a bit. 3331 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3332 return; 3333 } 3334 } 3335 } 3336 3337 mLastWasImTarget = WindowManager.LayoutParams 3338 .mayUseInputMethod(mWindowAttributes.flags); 3339 3340 InputMethodManager imm = InputMethodManager.peekInstance(); 3341 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3342 imm.onPreWindowFocus(mView, hasWindowFocus); 3343 } 3344 if (mView != null) { 3345 mAttachInfo.mKeyDispatchState.reset(); 3346 mView.dispatchWindowFocusChanged(hasWindowFocus); 3347 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3348 } 3349 3350 // Note: must be done after the focus change callbacks, 3351 // so all of the view state is set up correctly. 3352 if (hasWindowFocus) { 3353 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3354 imm.onPostWindowFocus(mView, mView.findFocus(), 3355 mWindowAttributes.softInputMode, 3356 !mHasHadWindowFocus, mWindowAttributes.flags); 3357 } 3358 // Clear the forward bit. We can just do this directly, since 3359 // the window manager doesn't care about it. 3360 mWindowAttributes.softInputMode &= 3361 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3362 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3363 .softInputMode &= 3364 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3365 mHasHadWindowFocus = true; 3366 } 3367 } 3368 } break; 3369 case MSG_DIE: 3370 doDie(); 3371 break; 3372 case MSG_DISPATCH_INPUT_EVENT: { 3373 SomeArgs args = (SomeArgs)msg.obj; 3374 InputEvent event = (InputEvent)args.arg1; 3375 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3376 enqueueInputEvent(event, receiver, 0, true); 3377 args.recycle(); 3378 } break; 3379 case MSG_SYNTHESIZE_INPUT_EVENT: { 3380 InputEvent event = (InputEvent)msg.obj; 3381 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3382 } break; 3383 case MSG_DISPATCH_KEY_FROM_IME: { 3384 if (LOCAL_LOGV) Log.v( 3385 TAG, "Dispatching key " 3386 + msg.obj + " from IME to " + mView); 3387 KeyEvent event = (KeyEvent)msg.obj; 3388 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3389 // The IME is trying to say this event is from the 3390 // system! Bad bad bad! 3391 //noinspection UnusedAssignment 3392 event = KeyEvent.changeFlags(event, event.getFlags() & 3393 ~KeyEvent.FLAG_FROM_SYSTEM); 3394 } 3395 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3396 } break; 3397 case MSG_FINISH_INPUT_CONNECTION: { 3398 InputMethodManager imm = InputMethodManager.peekInstance(); 3399 if (imm != null) { 3400 imm.reportFinishInputConnection((InputConnection)msg.obj); 3401 } 3402 } break; 3403 case MSG_CHECK_FOCUS: { 3404 InputMethodManager imm = InputMethodManager.peekInstance(); 3405 if (imm != null) { 3406 imm.checkFocus(); 3407 } 3408 } break; 3409 case MSG_CLOSE_SYSTEM_DIALOGS: { 3410 if (mView != null) { 3411 mView.onCloseSystemDialogs((String)msg.obj); 3412 } 3413 } break; 3414 case MSG_DISPATCH_DRAG_EVENT: 3415 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3416 DragEvent event = (DragEvent)msg.obj; 3417 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3418 handleDragEvent(event); 3419 } break; 3420 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3421 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3422 } break; 3423 case MSG_UPDATE_CONFIGURATION: { 3424 Configuration config = (Configuration)msg.obj; 3425 if (config.isOtherSeqNewer(mLastConfiguration)) { 3426 config = mLastConfiguration; 3427 } 3428 updateConfiguration(config, false); 3429 } break; 3430 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3431 setAccessibilityFocus(null, null); 3432 } break; 3433 case MSG_INVALIDATE_WORLD: { 3434 if (mView != null) { 3435 invalidateWorld(mView); 3436 } 3437 } break; 3438 case MSG_DISPATCH_WINDOW_SHOWN: { 3439 handleDispatchWindowShown(); 3440 } 3441 } 3442 } 3443 } 3444 3445 final ViewRootHandler mHandler = new ViewRootHandler(); 3446 3447 /** 3448 * Something in the current window tells us we need to change the touch mode. For 3449 * example, we are not in touch mode, and the user touches the screen. 3450 * 3451 * If the touch mode has changed, tell the window manager, and handle it locally. 3452 * 3453 * @param inTouchMode Whether we want to be in touch mode. 3454 * @return True if the touch mode changed and focus changed was changed as a result 3455 */ 3456 boolean ensureTouchMode(boolean inTouchMode) { 3457 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3458 + "touch mode is " + mAttachInfo.mInTouchMode); 3459 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3460 3461 // tell the window manager 3462 try { 3463 if (!isInLocalFocusMode()) { 3464 mWindowSession.setInTouchMode(inTouchMode); 3465 } 3466 } catch (RemoteException e) { 3467 throw new RuntimeException(e); 3468 } 3469 3470 // handle the change 3471 return ensureTouchModeLocally(inTouchMode); 3472 } 3473 3474 /** 3475 * Ensure that the touch mode for this window is set, and if it is changing, 3476 * take the appropriate action. 3477 * @param inTouchMode Whether we want to be in touch mode. 3478 * @return True if the touch mode changed and focus changed was changed as a result 3479 */ 3480 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3481 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3482 + "touch mode is " + mAttachInfo.mInTouchMode); 3483 3484 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3485 3486 mAttachInfo.mInTouchMode = inTouchMode; 3487 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3488 3489 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3490 } 3491 3492 private boolean enterTouchMode() { 3493 if (mView != null && mView.hasFocus()) { 3494 // note: not relying on mFocusedView here because this could 3495 // be when the window is first being added, and mFocused isn't 3496 // set yet. 3497 final View focused = mView.findFocus(); 3498 if (focused != null && !focused.isFocusableInTouchMode()) { 3499 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3500 if (ancestorToTakeFocus != null) { 3501 // there is an ancestor that wants focus after its 3502 // descendants that is focusable in touch mode.. give it 3503 // focus 3504 return ancestorToTakeFocus.requestFocus(); 3505 } else { 3506 // There's nothing to focus. Clear and propagate through the 3507 // hierarchy, but don't attempt to place new focus. 3508 focused.clearFocusInternal(null, true, false); 3509 return true; 3510 } 3511 } 3512 } 3513 return false; 3514 } 3515 3516 /** 3517 * Find an ancestor of focused that wants focus after its descendants and is 3518 * focusable in touch mode. 3519 * @param focused The currently focused view. 3520 * @return An appropriate view, or null if no such view exists. 3521 */ 3522 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3523 ViewParent parent = focused.getParent(); 3524 while (parent instanceof ViewGroup) { 3525 final ViewGroup vgParent = (ViewGroup) parent; 3526 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3527 && vgParent.isFocusableInTouchMode()) { 3528 return vgParent; 3529 } 3530 if (vgParent.isRootNamespace()) { 3531 return null; 3532 } else { 3533 parent = vgParent.getParent(); 3534 } 3535 } 3536 return null; 3537 } 3538 3539 private boolean leaveTouchMode() { 3540 if (mView != null) { 3541 if (mView.hasFocus()) { 3542 View focusedView = mView.findFocus(); 3543 if (!(focusedView instanceof ViewGroup)) { 3544 // some view has focus, let it keep it 3545 return false; 3546 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3547 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3548 // some view group has focus, and doesn't prefer its children 3549 // over itself for focus, so let them keep it. 3550 return false; 3551 } 3552 } 3553 3554 // find the best view to give focus to in this brave new non-touch-mode 3555 // world 3556 final View focused = focusSearch(null, View.FOCUS_DOWN); 3557 if (focused != null) { 3558 return focused.requestFocus(View.FOCUS_DOWN); 3559 } 3560 } 3561 return false; 3562 } 3563 3564 /** 3565 * Base class for implementing a stage in the chain of responsibility 3566 * for processing input events. 3567 * <p> 3568 * Events are delivered to the stage by the {@link #deliver} method. The stage 3569 * then has the choice of finishing the event or forwarding it to the next stage. 3570 * </p> 3571 */ 3572 abstract class InputStage { 3573 private final InputStage mNext; 3574 3575 protected static final int FORWARD = 0; 3576 protected static final int FINISH_HANDLED = 1; 3577 protected static final int FINISH_NOT_HANDLED = 2; 3578 3579 /** 3580 * Creates an input stage. 3581 * @param next The next stage to which events should be forwarded. 3582 */ 3583 public InputStage(InputStage next) { 3584 mNext = next; 3585 } 3586 3587 /** 3588 * Delivers an event to be processed. 3589 */ 3590 public final void deliver(QueuedInputEvent q) { 3591 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3592 forward(q); 3593 } else if (shouldDropInputEvent(q)) { 3594 finish(q, false); 3595 } else { 3596 apply(q, onProcess(q)); 3597 } 3598 } 3599 3600 /** 3601 * Marks the the input event as finished then forwards it to the next stage. 3602 */ 3603 protected void finish(QueuedInputEvent q, boolean handled) { 3604 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3605 if (handled) { 3606 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3607 } 3608 forward(q); 3609 } 3610 3611 /** 3612 * Forwards the event to the next stage. 3613 */ 3614 protected void forward(QueuedInputEvent q) { 3615 onDeliverToNext(q); 3616 } 3617 3618 /** 3619 * Applies a result code from {@link #onProcess} to the specified event. 3620 */ 3621 protected void apply(QueuedInputEvent q, int result) { 3622 if (result == FORWARD) { 3623 forward(q); 3624 } else if (result == FINISH_HANDLED) { 3625 finish(q, true); 3626 } else if (result == FINISH_NOT_HANDLED) { 3627 finish(q, false); 3628 } else { 3629 throw new IllegalArgumentException("Invalid result: " + result); 3630 } 3631 } 3632 3633 /** 3634 * Called when an event is ready to be processed. 3635 * @return A result code indicating how the event was handled. 3636 */ 3637 protected int onProcess(QueuedInputEvent q) { 3638 return FORWARD; 3639 } 3640 3641 /** 3642 * Called when an event is being delivered to the next stage. 3643 */ 3644 protected void onDeliverToNext(QueuedInputEvent q) { 3645 if (DEBUG_INPUT_STAGES) { 3646 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3647 } 3648 if (mNext != null) { 3649 mNext.deliver(q); 3650 } else { 3651 finishInputEvent(q); 3652 } 3653 } 3654 3655 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3656 if (mView == null || !mAdded) { 3657 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3658 return true; 3659 } else if ((!mAttachInfo.mHasWindowFocus 3660 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped 3661 || (mPausedForTransition && !isBack(q.mEvent))) { 3662 // This is a focus event and the window doesn't currently have input focus or 3663 // has stopped. This could be an event that came back from the previous stage 3664 // but the window has lost focus or stopped in the meantime. 3665 if (isTerminalInputEvent(q.mEvent)) { 3666 // Don't drop terminal input events, however mark them as canceled. 3667 q.mEvent.cancel(); 3668 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3669 return false; 3670 } 3671 3672 // Drop non-terminal input events. 3673 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3674 return true; 3675 } 3676 return false; 3677 } 3678 3679 void dump(String prefix, PrintWriter writer) { 3680 if (mNext != null) { 3681 mNext.dump(prefix, writer); 3682 } 3683 } 3684 3685 private boolean isBack(InputEvent event) { 3686 if (event instanceof KeyEvent) { 3687 return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK; 3688 } else { 3689 return false; 3690 } 3691 } 3692 } 3693 3694 /** 3695 * Base class for implementing an input pipeline stage that supports 3696 * asynchronous and out-of-order processing of input events. 3697 * <p> 3698 * In addition to what a normal input stage can do, an asynchronous 3699 * input stage may also defer an input event that has been delivered to it 3700 * and finish or forward it later. 3701 * </p> 3702 */ 3703 abstract class AsyncInputStage extends InputStage { 3704 private final String mTraceCounter; 3705 3706 private QueuedInputEvent mQueueHead; 3707 private QueuedInputEvent mQueueTail; 3708 private int mQueueLength; 3709 3710 protected static final int DEFER = 3; 3711 3712 /** 3713 * Creates an asynchronous input stage. 3714 * @param next The next stage to which events should be forwarded. 3715 * @param traceCounter The name of a counter to record the size of 3716 * the queue of pending events. 3717 */ 3718 public AsyncInputStage(InputStage next, String traceCounter) { 3719 super(next); 3720 mTraceCounter = traceCounter; 3721 } 3722 3723 /** 3724 * Marks the event as deferred, which is to say that it will be handled 3725 * asynchronously. The caller is responsible for calling {@link #forward} 3726 * or {@link #finish} later when it is done handling the event. 3727 */ 3728 protected void defer(QueuedInputEvent q) { 3729 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3730 enqueue(q); 3731 } 3732 3733 @Override 3734 protected void forward(QueuedInputEvent q) { 3735 // Clear the deferred flag. 3736 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3737 3738 // Fast path if the queue is empty. 3739 QueuedInputEvent curr = mQueueHead; 3740 if (curr == null) { 3741 super.forward(q); 3742 return; 3743 } 3744 3745 // Determine whether the event must be serialized behind any others 3746 // before it can be delivered to the next stage. This is done because 3747 // deferred events might be handled out of order by the stage. 3748 final int deviceId = q.mEvent.getDeviceId(); 3749 QueuedInputEvent prev = null; 3750 boolean blocked = false; 3751 while (curr != null && curr != q) { 3752 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3753 blocked = true; 3754 } 3755 prev = curr; 3756 curr = curr.mNext; 3757 } 3758 3759 // If the event is blocked, then leave it in the queue to be delivered later. 3760 // Note that the event might not yet be in the queue if it was not previously 3761 // deferred so we will enqueue it if needed. 3762 if (blocked) { 3763 if (curr == null) { 3764 enqueue(q); 3765 } 3766 return; 3767 } 3768 3769 // The event is not blocked. Deliver it immediately. 3770 if (curr != null) { 3771 curr = curr.mNext; 3772 dequeue(q, prev); 3773 } 3774 super.forward(q); 3775 3776 // Dequeuing this event may have unblocked successors. Deliver them. 3777 while (curr != null) { 3778 if (deviceId == curr.mEvent.getDeviceId()) { 3779 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3780 break; 3781 } 3782 QueuedInputEvent next = curr.mNext; 3783 dequeue(curr, prev); 3784 super.forward(curr); 3785 curr = next; 3786 } else { 3787 prev = curr; 3788 curr = curr.mNext; 3789 } 3790 } 3791 } 3792 3793 @Override 3794 protected void apply(QueuedInputEvent q, int result) { 3795 if (result == DEFER) { 3796 defer(q); 3797 } else { 3798 super.apply(q, result); 3799 } 3800 } 3801 3802 private void enqueue(QueuedInputEvent q) { 3803 if (mQueueTail == null) { 3804 mQueueHead = q; 3805 mQueueTail = q; 3806 } else { 3807 mQueueTail.mNext = q; 3808 mQueueTail = q; 3809 } 3810 3811 mQueueLength += 1; 3812 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3813 } 3814 3815 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3816 if (prev == null) { 3817 mQueueHead = q.mNext; 3818 } else { 3819 prev.mNext = q.mNext; 3820 } 3821 if (mQueueTail == q) { 3822 mQueueTail = prev; 3823 } 3824 q.mNext = null; 3825 3826 mQueueLength -= 1; 3827 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3828 } 3829 3830 @Override 3831 void dump(String prefix, PrintWriter writer) { 3832 writer.print(prefix); 3833 writer.print(getClass().getName()); 3834 writer.print(": mQueueLength="); 3835 writer.println(mQueueLength); 3836 3837 super.dump(prefix, writer); 3838 } 3839 } 3840 3841 /** 3842 * Delivers pre-ime input events to a native activity. 3843 * Does not support pointer events. 3844 */ 3845 final class NativePreImeInputStage extends AsyncInputStage 3846 implements InputQueue.FinishedInputEventCallback { 3847 public NativePreImeInputStage(InputStage next, String traceCounter) { 3848 super(next, traceCounter); 3849 } 3850 3851 @Override 3852 protected int onProcess(QueuedInputEvent q) { 3853 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3854 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3855 return DEFER; 3856 } 3857 return FORWARD; 3858 } 3859 3860 @Override 3861 public void onFinishedInputEvent(Object token, boolean handled) { 3862 QueuedInputEvent q = (QueuedInputEvent)token; 3863 if (handled) { 3864 finish(q, true); 3865 return; 3866 } 3867 forward(q); 3868 } 3869 } 3870 3871 /** 3872 * Delivers pre-ime input events to the view hierarchy. 3873 * Does not support pointer events. 3874 */ 3875 final class ViewPreImeInputStage extends InputStage { 3876 public ViewPreImeInputStage(InputStage next) { 3877 super(next); 3878 } 3879 3880 @Override 3881 protected int onProcess(QueuedInputEvent q) { 3882 if (q.mEvent instanceof KeyEvent) { 3883 return processKeyEvent(q); 3884 } 3885 return FORWARD; 3886 } 3887 3888 private int processKeyEvent(QueuedInputEvent q) { 3889 final KeyEvent event = (KeyEvent)q.mEvent; 3890 if (mView.dispatchKeyEventPreIme(event)) { 3891 return FINISH_HANDLED; 3892 } 3893 return FORWARD; 3894 } 3895 } 3896 3897 /** 3898 * Delivers input events to the ime. 3899 * Does not support pointer events. 3900 */ 3901 final class ImeInputStage extends AsyncInputStage 3902 implements InputMethodManager.FinishedInputEventCallback { 3903 public ImeInputStage(InputStage next, String traceCounter) { 3904 super(next, traceCounter); 3905 } 3906 3907 @Override 3908 protected int onProcess(QueuedInputEvent q) { 3909 if (mLastWasImTarget && !isInLocalFocusMode()) { 3910 InputMethodManager imm = InputMethodManager.peekInstance(); 3911 if (imm != null) { 3912 final InputEvent event = q.mEvent; 3913 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3914 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3915 if (result == InputMethodManager.DISPATCH_HANDLED) { 3916 return FINISH_HANDLED; 3917 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3918 // The IME could not handle it, so skip along to the next InputStage 3919 return FORWARD; 3920 } else { 3921 return DEFER; // callback will be invoked later 3922 } 3923 } 3924 } 3925 return FORWARD; 3926 } 3927 3928 @Override 3929 public void onFinishedInputEvent(Object token, boolean handled) { 3930 QueuedInputEvent q = (QueuedInputEvent)token; 3931 if (handled) { 3932 finish(q, true); 3933 return; 3934 } 3935 forward(q); 3936 } 3937 } 3938 3939 /** 3940 * Performs early processing of post-ime input events. 3941 */ 3942 final class EarlyPostImeInputStage extends InputStage { 3943 public EarlyPostImeInputStage(InputStage next) { 3944 super(next); 3945 } 3946 3947 @Override 3948 protected int onProcess(QueuedInputEvent q) { 3949 if (q.mEvent instanceof KeyEvent) { 3950 return processKeyEvent(q); 3951 } else { 3952 final int source = q.mEvent.getSource(); 3953 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3954 return processPointerEvent(q); 3955 } 3956 } 3957 return FORWARD; 3958 } 3959 3960 private int processKeyEvent(QueuedInputEvent q) { 3961 final KeyEvent event = (KeyEvent)q.mEvent; 3962 3963 // If the key's purpose is to exit touch mode then we consume it 3964 // and consider it handled. 3965 if (checkForLeavingTouchModeAndConsume(event)) { 3966 return FINISH_HANDLED; 3967 } 3968 3969 // Make sure the fallback event policy sees all keys that will be 3970 // delivered to the view hierarchy. 3971 mFallbackEventHandler.preDispatchKeyEvent(event); 3972 return FORWARD; 3973 } 3974 3975 private int processPointerEvent(QueuedInputEvent q) { 3976 final MotionEvent event = (MotionEvent)q.mEvent; 3977 3978 // Translate the pointer event for compatibility, if needed. 3979 if (mTranslator != null) { 3980 mTranslator.translateEventInScreenToAppWindow(event); 3981 } 3982 3983 // Enter touch mode on down or scroll. 3984 final int action = event.getAction(); 3985 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3986 ensureTouchMode(true); 3987 } 3988 3989 // Offset the scroll position. 3990 if (mCurScrollY != 0) { 3991 event.offsetLocation(0, mCurScrollY); 3992 } 3993 3994 // Remember the touch position for possible drag-initiation. 3995 if (event.isTouchEvent()) { 3996 mLastTouchPoint.x = event.getRawX(); 3997 mLastTouchPoint.y = event.getRawY(); 3998 } 3999 return FORWARD; 4000 } 4001 } 4002 4003 /** 4004 * Delivers post-ime input events to a native activity. 4005 */ 4006 final class NativePostImeInputStage extends AsyncInputStage 4007 implements InputQueue.FinishedInputEventCallback { 4008 public NativePostImeInputStage(InputStage next, String traceCounter) { 4009 super(next, traceCounter); 4010 } 4011 4012 @Override 4013 protected int onProcess(QueuedInputEvent q) { 4014 if (mInputQueue != null) { 4015 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 4016 return DEFER; 4017 } 4018 return FORWARD; 4019 } 4020 4021 @Override 4022 public void onFinishedInputEvent(Object token, boolean handled) { 4023 QueuedInputEvent q = (QueuedInputEvent)token; 4024 if (handled) { 4025 finish(q, true); 4026 return; 4027 } 4028 forward(q); 4029 } 4030 } 4031 4032 /** 4033 * Delivers post-ime input events to the view hierarchy. 4034 */ 4035 final class ViewPostImeInputStage extends InputStage { 4036 public ViewPostImeInputStage(InputStage next) { 4037 super(next); 4038 } 4039 4040 @Override 4041 protected int onProcess(QueuedInputEvent q) { 4042 if (q.mEvent instanceof KeyEvent) { 4043 return processKeyEvent(q); 4044 } else { 4045 final int source = q.mEvent.getSource(); 4046 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4047 return processPointerEvent(q); 4048 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4049 return processTrackballEvent(q); 4050 } else { 4051 return processGenericMotionEvent(q); 4052 } 4053 } 4054 } 4055 4056 @Override 4057 protected void onDeliverToNext(QueuedInputEvent q) { 4058 if (mUnbufferedInputDispatch 4059 && q.mEvent instanceof MotionEvent 4060 && ((MotionEvent)q.mEvent).isTouchEvent() 4061 && isTerminalInputEvent(q.mEvent)) { 4062 mUnbufferedInputDispatch = false; 4063 scheduleConsumeBatchedInput(); 4064 } 4065 super.onDeliverToNext(q); 4066 } 4067 4068 private int processKeyEvent(QueuedInputEvent q) { 4069 final KeyEvent event = (KeyEvent)q.mEvent; 4070 4071 // Deliver the key to the view hierarchy. 4072 if (mView.dispatchKeyEvent(event)) { 4073 return FINISH_HANDLED; 4074 } 4075 4076 if (shouldDropInputEvent(q)) { 4077 return FINISH_NOT_HANDLED; 4078 } 4079 4080 // If the Control modifier is held, try to interpret the key as a shortcut. 4081 if (event.getAction() == KeyEvent.ACTION_DOWN 4082 && event.isCtrlPressed() 4083 && event.getRepeatCount() == 0 4084 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4085 if (mView.dispatchKeyShortcutEvent(event)) { 4086 return FINISH_HANDLED; 4087 } 4088 if (shouldDropInputEvent(q)) { 4089 return FINISH_NOT_HANDLED; 4090 } 4091 } 4092 4093 // Apply the fallback event policy. 4094 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4095 return FINISH_HANDLED; 4096 } 4097 if (shouldDropInputEvent(q)) { 4098 return FINISH_NOT_HANDLED; 4099 } 4100 4101 // Handle automatic focus changes. 4102 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4103 int direction = 0; 4104 switch (event.getKeyCode()) { 4105 case KeyEvent.KEYCODE_DPAD_LEFT: 4106 if (event.hasNoModifiers()) { 4107 direction = View.FOCUS_LEFT; 4108 } 4109 break; 4110 case KeyEvent.KEYCODE_DPAD_RIGHT: 4111 if (event.hasNoModifiers()) { 4112 direction = View.FOCUS_RIGHT; 4113 } 4114 break; 4115 case KeyEvent.KEYCODE_DPAD_UP: 4116 if (event.hasNoModifiers()) { 4117 direction = View.FOCUS_UP; 4118 } 4119 break; 4120 case KeyEvent.KEYCODE_DPAD_DOWN: 4121 if (event.hasNoModifiers()) { 4122 direction = View.FOCUS_DOWN; 4123 } 4124 break; 4125 case KeyEvent.KEYCODE_TAB: 4126 if (event.hasNoModifiers()) { 4127 direction = View.FOCUS_FORWARD; 4128 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4129 direction = View.FOCUS_BACKWARD; 4130 } 4131 break; 4132 } 4133 if (direction != 0) { 4134 View focused = mView.findFocus(); 4135 if (focused != null) { 4136 View v = focused.focusSearch(direction); 4137 if (v != null && v != focused) { 4138 // do the math the get the interesting rect 4139 // of previous focused into the coord system of 4140 // newly focused view 4141 focused.getFocusedRect(mTempRect); 4142 if (mView instanceof ViewGroup) { 4143 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4144 focused, mTempRect); 4145 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4146 v, mTempRect); 4147 } 4148 if (v.requestFocus(direction, mTempRect)) { 4149 playSoundEffect(SoundEffectConstants 4150 .getContantForFocusDirection(direction)); 4151 return FINISH_HANDLED; 4152 } 4153 } 4154 4155 // Give the focused view a last chance to handle the dpad key. 4156 if (mView.dispatchUnhandledMove(focused, direction)) { 4157 return FINISH_HANDLED; 4158 } 4159 } else { 4160 // find the best view to give focus to in this non-touch-mode with no-focus 4161 View v = focusSearch(null, direction); 4162 if (v != null && v.requestFocus(direction)) { 4163 return FINISH_HANDLED; 4164 } 4165 } 4166 } 4167 } 4168 return FORWARD; 4169 } 4170 4171 private int processPointerEvent(QueuedInputEvent q) { 4172 final MotionEvent event = (MotionEvent)q.mEvent; 4173 4174 if (event.getPointerCount() == 1 4175 && event.isFromSource(InputDevice.SOURCE_MOUSE)) { 4176 if (event.getActionMasked() == MotionEvent.ACTION_HOVER_ENTER 4177 || event.getActionMasked() == MotionEvent.ACTION_HOVER_EXIT) { 4178 // Other apps or the window manager may change the icon shape outside of 4179 // this app, therefore the icon shape has to be reset on enter/exit event. 4180 mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 4181 } 4182 4183 final float x = event.getX(); 4184 final float y = event.getY(); 4185 if (x >= 0 && x < mView.getWidth() && y >= 0 && y < mView.getHeight()) { 4186 int pointerShape = mView.getPointerShape(event, x, y); 4187 if (pointerShape == PointerIcon.STYLE_NOT_SPECIFIED) { 4188 pointerShape = PointerIcon.STYLE_DEFAULT; 4189 } 4190 4191 if (mPointerIconShape != pointerShape) { 4192 mPointerIconShape = pointerShape; 4193 event.getDevice().setPointerShape(pointerShape); 4194 } 4195 } else if (event.getActionMasked() == MotionEvent.ACTION_HOVER_MOVE) { 4196 mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 4197 } 4198 } 4199 4200 mAttachInfo.mUnbufferedDispatchRequested = false; 4201 boolean handled = mView.dispatchPointerEvent(event); 4202 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4203 mUnbufferedInputDispatch = true; 4204 if (mConsumeBatchedInputScheduled) { 4205 scheduleConsumeBatchedInputImmediately(); 4206 } 4207 } 4208 return handled ? FINISH_HANDLED : FORWARD; 4209 } 4210 4211 private int processTrackballEvent(QueuedInputEvent q) { 4212 final MotionEvent event = (MotionEvent)q.mEvent; 4213 4214 if (mView.dispatchTrackballEvent(event)) { 4215 return FINISH_HANDLED; 4216 } 4217 return FORWARD; 4218 } 4219 4220 private int processGenericMotionEvent(QueuedInputEvent q) { 4221 final MotionEvent event = (MotionEvent)q.mEvent; 4222 4223 // Deliver the event to the view. 4224 if (mView.dispatchGenericMotionEvent(event)) { 4225 return FINISH_HANDLED; 4226 } 4227 return FORWARD; 4228 } 4229 } 4230 4231 /** 4232 * Performs synthesis of new input events from unhandled input events. 4233 */ 4234 final class SyntheticInputStage extends InputStage { 4235 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4236 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4237 private final SyntheticTouchNavigationHandler mTouchNavigation = 4238 new SyntheticTouchNavigationHandler(); 4239 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4240 4241 public SyntheticInputStage() { 4242 super(null); 4243 } 4244 4245 @Override 4246 protected int onProcess(QueuedInputEvent q) { 4247 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4248 if (q.mEvent instanceof MotionEvent) { 4249 final MotionEvent event = (MotionEvent)q.mEvent; 4250 final int source = event.getSource(); 4251 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4252 mTrackball.process(event); 4253 return FINISH_HANDLED; 4254 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4255 mJoystick.process(event); 4256 return FINISH_HANDLED; 4257 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4258 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4259 mTouchNavigation.process(event); 4260 return FINISH_HANDLED; 4261 } 4262 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4263 mKeyboard.process((KeyEvent)q.mEvent); 4264 return FINISH_HANDLED; 4265 } 4266 4267 return FORWARD; 4268 } 4269 4270 @Override 4271 protected void onDeliverToNext(QueuedInputEvent q) { 4272 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4273 // Cancel related synthetic events if any prior stage has handled the event. 4274 if (q.mEvent instanceof MotionEvent) { 4275 final MotionEvent event = (MotionEvent)q.mEvent; 4276 final int source = event.getSource(); 4277 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4278 mTrackball.cancel(event); 4279 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4280 mJoystick.cancel(event); 4281 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4282 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4283 mTouchNavigation.cancel(event); 4284 } 4285 } 4286 } 4287 super.onDeliverToNext(q); 4288 } 4289 } 4290 4291 /** 4292 * Creates dpad events from unhandled trackball movements. 4293 */ 4294 final class SyntheticTrackballHandler { 4295 private final TrackballAxis mX = new TrackballAxis(); 4296 private final TrackballAxis mY = new TrackballAxis(); 4297 private long mLastTime; 4298 4299 public void process(MotionEvent event) { 4300 // Translate the trackball event into DPAD keys and try to deliver those. 4301 long curTime = SystemClock.uptimeMillis(); 4302 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4303 // It has been too long since the last movement, 4304 // so restart at the beginning. 4305 mX.reset(0); 4306 mY.reset(0); 4307 mLastTime = curTime; 4308 } 4309 4310 final int action = event.getAction(); 4311 final int metaState = event.getMetaState(); 4312 switch (action) { 4313 case MotionEvent.ACTION_DOWN: 4314 mX.reset(2); 4315 mY.reset(2); 4316 enqueueInputEvent(new KeyEvent(curTime, curTime, 4317 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4318 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4319 InputDevice.SOURCE_KEYBOARD)); 4320 break; 4321 case MotionEvent.ACTION_UP: 4322 mX.reset(2); 4323 mY.reset(2); 4324 enqueueInputEvent(new KeyEvent(curTime, curTime, 4325 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4326 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4327 InputDevice.SOURCE_KEYBOARD)); 4328 break; 4329 } 4330 4331 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4332 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4333 + " move=" + event.getX() 4334 + " / Y=" + mY.position + " step=" 4335 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4336 + " move=" + event.getY()); 4337 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4338 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4339 4340 // Generate DPAD events based on the trackball movement. 4341 // We pick the axis that has moved the most as the direction of 4342 // the DPAD. When we generate DPAD events for one axis, then the 4343 // other axis is reset -- we don't want to perform DPAD jumps due 4344 // to slight movements in the trackball when making major movements 4345 // along the other axis. 4346 int keycode = 0; 4347 int movement = 0; 4348 float accel = 1; 4349 if (xOff > yOff) { 4350 movement = mX.generate(); 4351 if (movement != 0) { 4352 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4353 : KeyEvent.KEYCODE_DPAD_LEFT; 4354 accel = mX.acceleration; 4355 mY.reset(2); 4356 } 4357 } else if (yOff > 0) { 4358 movement = mY.generate(); 4359 if (movement != 0) { 4360 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4361 : KeyEvent.KEYCODE_DPAD_UP; 4362 accel = mY.acceleration; 4363 mX.reset(2); 4364 } 4365 } 4366 4367 if (keycode != 0) { 4368 if (movement < 0) movement = -movement; 4369 int accelMovement = (int)(movement * accel); 4370 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4371 + " accelMovement=" + accelMovement 4372 + " accel=" + accel); 4373 if (accelMovement > movement) { 4374 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4375 + keycode); 4376 movement--; 4377 int repeatCount = accelMovement - movement; 4378 enqueueInputEvent(new KeyEvent(curTime, curTime, 4379 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4380 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4381 InputDevice.SOURCE_KEYBOARD)); 4382 } 4383 while (movement > 0) { 4384 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4385 + keycode); 4386 movement--; 4387 curTime = SystemClock.uptimeMillis(); 4388 enqueueInputEvent(new KeyEvent(curTime, curTime, 4389 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4390 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4391 InputDevice.SOURCE_KEYBOARD)); 4392 enqueueInputEvent(new KeyEvent(curTime, curTime, 4393 KeyEvent.ACTION_UP, keycode, 0, metaState, 4394 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4395 InputDevice.SOURCE_KEYBOARD)); 4396 } 4397 mLastTime = curTime; 4398 } 4399 } 4400 4401 public void cancel(MotionEvent event) { 4402 mLastTime = Integer.MIN_VALUE; 4403 4404 // If we reach this, we consumed a trackball event. 4405 // Because we will not translate the trackball event into a key event, 4406 // touch mode will not exit, so we exit touch mode here. 4407 if (mView != null && mAdded) { 4408 ensureTouchMode(false); 4409 } 4410 } 4411 } 4412 4413 /** 4414 * Maintains state information for a single trackball axis, generating 4415 * discrete (DPAD) movements based on raw trackball motion. 4416 */ 4417 static final class TrackballAxis { 4418 /** 4419 * The maximum amount of acceleration we will apply. 4420 */ 4421 static final float MAX_ACCELERATION = 20; 4422 4423 /** 4424 * The maximum amount of time (in milliseconds) between events in order 4425 * for us to consider the user to be doing fast trackball movements, 4426 * and thus apply an acceleration. 4427 */ 4428 static final long FAST_MOVE_TIME = 150; 4429 4430 /** 4431 * Scaling factor to the time (in milliseconds) between events to how 4432 * much to multiple/divide the current acceleration. When movement 4433 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4434 * FAST_MOVE_TIME it divides it. 4435 */ 4436 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4437 4438 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4439 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4440 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4441 4442 float position; 4443 float acceleration = 1; 4444 long lastMoveTime = 0; 4445 int step; 4446 int dir; 4447 int nonAccelMovement; 4448 4449 void reset(int _step) { 4450 position = 0; 4451 acceleration = 1; 4452 lastMoveTime = 0; 4453 step = _step; 4454 dir = 0; 4455 } 4456 4457 /** 4458 * Add trackball movement into the state. If the direction of movement 4459 * has been reversed, the state is reset before adding the 4460 * movement (so that you don't have to compensate for any previously 4461 * collected movement before see the result of the movement in the 4462 * new direction). 4463 * 4464 * @return Returns the absolute value of the amount of movement 4465 * collected so far. 4466 */ 4467 float collect(float off, long time, String axis) { 4468 long normTime; 4469 if (off > 0) { 4470 normTime = (long)(off * FAST_MOVE_TIME); 4471 if (dir < 0) { 4472 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4473 position = 0; 4474 step = 0; 4475 acceleration = 1; 4476 lastMoveTime = 0; 4477 } 4478 dir = 1; 4479 } else if (off < 0) { 4480 normTime = (long)((-off) * FAST_MOVE_TIME); 4481 if (dir > 0) { 4482 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4483 position = 0; 4484 step = 0; 4485 acceleration = 1; 4486 lastMoveTime = 0; 4487 } 4488 dir = -1; 4489 } else { 4490 normTime = 0; 4491 } 4492 4493 // The number of milliseconds between each movement that is 4494 // considered "normal" and will not result in any acceleration 4495 // or deceleration, scaled by the offset we have here. 4496 if (normTime > 0) { 4497 long delta = time - lastMoveTime; 4498 lastMoveTime = time; 4499 float acc = acceleration; 4500 if (delta < normTime) { 4501 // The user is scrolling rapidly, so increase acceleration. 4502 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4503 if (scale > 1) acc *= scale; 4504 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4505 + off + " normTime=" + normTime + " delta=" + delta 4506 + " scale=" + scale + " acc=" + acc); 4507 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4508 } else { 4509 // The user is scrolling slowly, so decrease acceleration. 4510 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4511 if (scale > 1) acc /= scale; 4512 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4513 + off + " normTime=" + normTime + " delta=" + delta 4514 + " scale=" + scale + " acc=" + acc); 4515 acceleration = acc > 1 ? acc : 1; 4516 } 4517 } 4518 position += off; 4519 return Math.abs(position); 4520 } 4521 4522 /** 4523 * Generate the number of discrete movement events appropriate for 4524 * the currently collected trackball movement. 4525 * 4526 * @return Returns the number of discrete movements, either positive 4527 * or negative, or 0 if there is not enough trackball movement yet 4528 * for a discrete movement. 4529 */ 4530 int generate() { 4531 int movement = 0; 4532 nonAccelMovement = 0; 4533 do { 4534 final int dir = position >= 0 ? 1 : -1; 4535 switch (step) { 4536 // If we are going to execute the first step, then we want 4537 // to do this as soon as possible instead of waiting for 4538 // a full movement, in order to make things look responsive. 4539 case 0: 4540 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4541 return movement; 4542 } 4543 movement += dir; 4544 nonAccelMovement += dir; 4545 step = 1; 4546 break; 4547 // If we have generated the first movement, then we need 4548 // to wait for the second complete trackball motion before 4549 // generating the second discrete movement. 4550 case 1: 4551 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4552 return movement; 4553 } 4554 movement += dir; 4555 nonAccelMovement += dir; 4556 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4557 step = 2; 4558 break; 4559 // After the first two, we generate discrete movements 4560 // consistently with the trackball, applying an acceleration 4561 // if the trackball is moving quickly. This is a simple 4562 // acceleration on top of what we already compute based 4563 // on how quickly the wheel is being turned, to apply 4564 // a longer increasing acceleration to continuous movement 4565 // in one direction. 4566 default: 4567 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4568 return movement; 4569 } 4570 movement += dir; 4571 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4572 float acc = acceleration; 4573 acc *= 1.1f; 4574 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4575 break; 4576 } 4577 } while (true); 4578 } 4579 } 4580 4581 /** 4582 * Creates dpad events from unhandled joystick movements. 4583 */ 4584 final class SyntheticJoystickHandler extends Handler { 4585 private final static String TAG = "SyntheticJoystickHandler"; 4586 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4587 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4588 4589 private int mLastXDirection; 4590 private int mLastYDirection; 4591 private int mLastXKeyCode; 4592 private int mLastYKeyCode; 4593 4594 public SyntheticJoystickHandler() { 4595 super(true); 4596 } 4597 4598 @Override 4599 public void handleMessage(Message msg) { 4600 switch (msg.what) { 4601 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4602 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4603 KeyEvent oldEvent = (KeyEvent)msg.obj; 4604 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4605 SystemClock.uptimeMillis(), 4606 oldEvent.getRepeatCount() + 1); 4607 if (mAttachInfo.mHasWindowFocus) { 4608 enqueueInputEvent(e); 4609 Message m = obtainMessage(msg.what, e); 4610 m.setAsynchronous(true); 4611 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4612 } 4613 } break; 4614 } 4615 } 4616 4617 public void process(MotionEvent event) { 4618 switch(event.getActionMasked()) { 4619 case MotionEvent.ACTION_CANCEL: 4620 cancel(event); 4621 break; 4622 case MotionEvent.ACTION_MOVE: 4623 update(event, true); 4624 break; 4625 default: 4626 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4627 } 4628 } 4629 4630 private void cancel(MotionEvent event) { 4631 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4632 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4633 update(event, false); 4634 } 4635 4636 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4637 final long time = event.getEventTime(); 4638 final int metaState = event.getMetaState(); 4639 final int deviceId = event.getDeviceId(); 4640 final int source = event.getSource(); 4641 4642 int xDirection = joystickAxisValueToDirection( 4643 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4644 if (xDirection == 0) { 4645 xDirection = joystickAxisValueToDirection(event.getX()); 4646 } 4647 4648 int yDirection = joystickAxisValueToDirection( 4649 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4650 if (yDirection == 0) { 4651 yDirection = joystickAxisValueToDirection(event.getY()); 4652 } 4653 4654 if (xDirection != mLastXDirection) { 4655 if (mLastXKeyCode != 0) { 4656 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4657 enqueueInputEvent(new KeyEvent(time, time, 4658 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4659 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4660 mLastXKeyCode = 0; 4661 } 4662 4663 mLastXDirection = xDirection; 4664 4665 if (xDirection != 0 && synthesizeNewKeys) { 4666 mLastXKeyCode = xDirection > 0 4667 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4668 final KeyEvent e = new KeyEvent(time, time, 4669 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4670 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4671 enqueueInputEvent(e); 4672 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4673 m.setAsynchronous(true); 4674 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4675 } 4676 } 4677 4678 if (yDirection != mLastYDirection) { 4679 if (mLastYKeyCode != 0) { 4680 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4681 enqueueInputEvent(new KeyEvent(time, time, 4682 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4683 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4684 mLastYKeyCode = 0; 4685 } 4686 4687 mLastYDirection = yDirection; 4688 4689 if (yDirection != 0 && synthesizeNewKeys) { 4690 mLastYKeyCode = yDirection > 0 4691 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4692 final KeyEvent e = new KeyEvent(time, time, 4693 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4694 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4695 enqueueInputEvent(e); 4696 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4697 m.setAsynchronous(true); 4698 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4699 } 4700 } 4701 } 4702 4703 private int joystickAxisValueToDirection(float value) { 4704 if (value >= 0.5f) { 4705 return 1; 4706 } else if (value <= -0.5f) { 4707 return -1; 4708 } else { 4709 return 0; 4710 } 4711 } 4712 } 4713 4714 /** 4715 * Creates dpad events from unhandled touch navigation movements. 4716 */ 4717 final class SyntheticTouchNavigationHandler extends Handler { 4718 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4719 private static final boolean LOCAL_DEBUG = false; 4720 4721 // Assumed nominal width and height in millimeters of a touch navigation pad, 4722 // if no resolution information is available from the input system. 4723 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4724 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4725 4726 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4727 4728 // The nominal distance traveled to move by one unit. 4729 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4730 4731 // Minimum and maximum fling velocity in ticks per second. 4732 // The minimum velocity should be set such that we perform enough ticks per 4733 // second that the fling appears to be fluid. For example, if we set the minimum 4734 // to 2 ticks per second, then there may be up to half a second delay between the next 4735 // to last and last ticks which is noticeably discrete and jerky. This value should 4736 // probably not be set to anything less than about 4. 4737 // If fling accuracy is a problem then consider tuning the tick distance instead. 4738 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4739 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4740 4741 // Fling velocity decay factor applied after each new key is emitted. 4742 // This parameter controls the deceleration and overall duration of the fling. 4743 // The fling stops automatically when its velocity drops below the minimum 4744 // fling velocity defined above. 4745 private static final float FLING_TICK_DECAY = 0.8f; 4746 4747 /* The input device that we are tracking. */ 4748 4749 private int mCurrentDeviceId = -1; 4750 private int mCurrentSource; 4751 private boolean mCurrentDeviceSupported; 4752 4753 /* Configuration for the current input device. */ 4754 4755 // The scaled tick distance. A movement of this amount should generally translate 4756 // into a single dpad event in a given direction. 4757 private float mConfigTickDistance; 4758 4759 // The minimum and maximum scaled fling velocity. 4760 private float mConfigMinFlingVelocity; 4761 private float mConfigMaxFlingVelocity; 4762 4763 /* Tracking state. */ 4764 4765 // The velocity tracker for detecting flings. 4766 private VelocityTracker mVelocityTracker; 4767 4768 // The active pointer id, or -1 if none. 4769 private int mActivePointerId = -1; 4770 4771 // Location where tracking started. 4772 private float mStartX; 4773 private float mStartY; 4774 4775 // Most recently observed position. 4776 private float mLastX; 4777 private float mLastY; 4778 4779 // Accumulated movement delta since the last direction key was sent. 4780 private float mAccumulatedX; 4781 private float mAccumulatedY; 4782 4783 // Set to true if any movement was delivered to the app. 4784 // Implies that tap slop was exceeded. 4785 private boolean mConsumedMovement; 4786 4787 // The most recently sent key down event. 4788 // The keycode remains set until the direction changes or a fling ends 4789 // so that repeated key events may be generated as required. 4790 private long mPendingKeyDownTime; 4791 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4792 private int mPendingKeyRepeatCount; 4793 private int mPendingKeyMetaState; 4794 4795 // The current fling velocity while a fling is in progress. 4796 private boolean mFlinging; 4797 private float mFlingVelocity; 4798 4799 public SyntheticTouchNavigationHandler() { 4800 super(true); 4801 } 4802 4803 public void process(MotionEvent event) { 4804 // Update the current device information. 4805 final long time = event.getEventTime(); 4806 final int deviceId = event.getDeviceId(); 4807 final int source = event.getSource(); 4808 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4809 finishKeys(time); 4810 finishTracking(time); 4811 mCurrentDeviceId = deviceId; 4812 mCurrentSource = source; 4813 mCurrentDeviceSupported = false; 4814 InputDevice device = event.getDevice(); 4815 if (device != null) { 4816 // In order to support an input device, we must know certain 4817 // characteristics about it, such as its size and resolution. 4818 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4819 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4820 if (xRange != null && yRange != null) { 4821 mCurrentDeviceSupported = true; 4822 4823 // Infer the resolution if it not actually known. 4824 float xRes = xRange.getResolution(); 4825 if (xRes <= 0) { 4826 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4827 } 4828 float yRes = yRange.getResolution(); 4829 if (yRes <= 0) { 4830 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4831 } 4832 float nominalRes = (xRes + yRes) * 0.5f; 4833 4834 // Precompute all of the configuration thresholds we will need. 4835 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4836 mConfigMinFlingVelocity = 4837 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4838 mConfigMaxFlingVelocity = 4839 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4840 4841 if (LOCAL_DEBUG) { 4842 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4843 + " (" + Integer.toHexString(mCurrentSource) + "): " 4844 + ", mConfigTickDistance=" + mConfigTickDistance 4845 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4846 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4847 } 4848 } 4849 } 4850 } 4851 if (!mCurrentDeviceSupported) { 4852 return; 4853 } 4854 4855 // Handle the event. 4856 final int action = event.getActionMasked(); 4857 switch (action) { 4858 case MotionEvent.ACTION_DOWN: { 4859 boolean caughtFling = mFlinging; 4860 finishKeys(time); 4861 finishTracking(time); 4862 mActivePointerId = event.getPointerId(0); 4863 mVelocityTracker = VelocityTracker.obtain(); 4864 mVelocityTracker.addMovement(event); 4865 mStartX = event.getX(); 4866 mStartY = event.getY(); 4867 mLastX = mStartX; 4868 mLastY = mStartY; 4869 mAccumulatedX = 0; 4870 mAccumulatedY = 0; 4871 4872 // If we caught a fling, then pretend that the tap slop has already 4873 // been exceeded to suppress taps whose only purpose is to stop the fling. 4874 mConsumedMovement = caughtFling; 4875 break; 4876 } 4877 4878 case MotionEvent.ACTION_MOVE: 4879 case MotionEvent.ACTION_UP: { 4880 if (mActivePointerId < 0) { 4881 break; 4882 } 4883 final int index = event.findPointerIndex(mActivePointerId); 4884 if (index < 0) { 4885 finishKeys(time); 4886 finishTracking(time); 4887 break; 4888 } 4889 4890 mVelocityTracker.addMovement(event); 4891 final float x = event.getX(index); 4892 final float y = event.getY(index); 4893 mAccumulatedX += x - mLastX; 4894 mAccumulatedY += y - mLastY; 4895 mLastX = x; 4896 mLastY = y; 4897 4898 // Consume any accumulated movement so far. 4899 final int metaState = event.getMetaState(); 4900 consumeAccumulatedMovement(time, metaState); 4901 4902 // Detect taps and flings. 4903 if (action == MotionEvent.ACTION_UP) { 4904 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4905 // It might be a fling. 4906 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4907 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4908 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4909 if (!startFling(time, vx, vy)) { 4910 finishKeys(time); 4911 } 4912 } 4913 finishTracking(time); 4914 } 4915 break; 4916 } 4917 4918 case MotionEvent.ACTION_CANCEL: { 4919 finishKeys(time); 4920 finishTracking(time); 4921 break; 4922 } 4923 } 4924 } 4925 4926 public void cancel(MotionEvent event) { 4927 if (mCurrentDeviceId == event.getDeviceId() 4928 && mCurrentSource == event.getSource()) { 4929 final long time = event.getEventTime(); 4930 finishKeys(time); 4931 finishTracking(time); 4932 } 4933 } 4934 4935 private void finishKeys(long time) { 4936 cancelFling(); 4937 sendKeyUp(time); 4938 } 4939 4940 private void finishTracking(long time) { 4941 if (mActivePointerId >= 0) { 4942 mActivePointerId = -1; 4943 mVelocityTracker.recycle(); 4944 mVelocityTracker = null; 4945 } 4946 } 4947 4948 private void consumeAccumulatedMovement(long time, int metaState) { 4949 final float absX = Math.abs(mAccumulatedX); 4950 final float absY = Math.abs(mAccumulatedY); 4951 if (absX >= absY) { 4952 if (absX >= mConfigTickDistance) { 4953 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4954 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4955 mAccumulatedY = 0; 4956 mConsumedMovement = true; 4957 } 4958 } else { 4959 if (absY >= mConfigTickDistance) { 4960 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4961 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4962 mAccumulatedX = 0; 4963 mConsumedMovement = true; 4964 } 4965 } 4966 } 4967 4968 private float consumeAccumulatedMovement(long time, int metaState, 4969 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4970 while (accumulator <= -mConfigTickDistance) { 4971 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4972 accumulator += mConfigTickDistance; 4973 } 4974 while (accumulator >= mConfigTickDistance) { 4975 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4976 accumulator -= mConfigTickDistance; 4977 } 4978 return accumulator; 4979 } 4980 4981 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4982 if (mPendingKeyCode != keyCode) { 4983 sendKeyUp(time); 4984 mPendingKeyDownTime = time; 4985 mPendingKeyCode = keyCode; 4986 mPendingKeyRepeatCount = 0; 4987 } else { 4988 mPendingKeyRepeatCount += 1; 4989 } 4990 mPendingKeyMetaState = metaState; 4991 4992 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4993 // but it doesn't quite make sense when simulating the events in this way. 4994 if (LOCAL_DEBUG) { 4995 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4996 + ", repeatCount=" + mPendingKeyRepeatCount 4997 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4998 } 4999 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5000 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 5001 mPendingKeyMetaState, mCurrentDeviceId, 5002 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 5003 } 5004 5005 private void sendKeyUp(long time) { 5006 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 5007 if (LOCAL_DEBUG) { 5008 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 5009 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 5010 } 5011 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5012 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 5013 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 5014 mCurrentSource)); 5015 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 5016 } 5017 } 5018 5019 private boolean startFling(long time, float vx, float vy) { 5020 if (LOCAL_DEBUG) { 5021 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 5022 + ", min=" + mConfigMinFlingVelocity); 5023 } 5024 5025 // Flings must be oriented in the same direction as the preceding movements. 5026 switch (mPendingKeyCode) { 5027 case KeyEvent.KEYCODE_DPAD_LEFT: 5028 if (-vx >= mConfigMinFlingVelocity 5029 && Math.abs(vy) < mConfigMinFlingVelocity) { 5030 mFlingVelocity = -vx; 5031 break; 5032 } 5033 return false; 5034 5035 case KeyEvent.KEYCODE_DPAD_RIGHT: 5036 if (vx >= mConfigMinFlingVelocity 5037 && Math.abs(vy) < mConfigMinFlingVelocity) { 5038 mFlingVelocity = vx; 5039 break; 5040 } 5041 return false; 5042 5043 case KeyEvent.KEYCODE_DPAD_UP: 5044 if (-vy >= mConfigMinFlingVelocity 5045 && Math.abs(vx) < mConfigMinFlingVelocity) { 5046 mFlingVelocity = -vy; 5047 break; 5048 } 5049 return false; 5050 5051 case KeyEvent.KEYCODE_DPAD_DOWN: 5052 if (vy >= mConfigMinFlingVelocity 5053 && Math.abs(vx) < mConfigMinFlingVelocity) { 5054 mFlingVelocity = vy; 5055 break; 5056 } 5057 return false; 5058 } 5059 5060 // Post the first fling event. 5061 mFlinging = postFling(time); 5062 return mFlinging; 5063 } 5064 5065 private boolean postFling(long time) { 5066 // The idea here is to estimate the time when the pointer would have 5067 // traveled one tick distance unit given the current fling velocity. 5068 // This effect creates continuity of motion. 5069 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5070 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5071 postAtTime(mFlingRunnable, time + delay); 5072 if (LOCAL_DEBUG) { 5073 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5074 + mFlingVelocity + ", delay=" + delay 5075 + ", keyCode=" + mPendingKeyCode); 5076 } 5077 return true; 5078 } 5079 return false; 5080 } 5081 5082 private void cancelFling() { 5083 if (mFlinging) { 5084 removeCallbacks(mFlingRunnable); 5085 mFlinging = false; 5086 } 5087 } 5088 5089 private final Runnable mFlingRunnable = new Runnable() { 5090 @Override 5091 public void run() { 5092 final long time = SystemClock.uptimeMillis(); 5093 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5094 mFlingVelocity *= FLING_TICK_DECAY; 5095 if (!postFling(time)) { 5096 mFlinging = false; 5097 finishKeys(time); 5098 } 5099 } 5100 }; 5101 } 5102 5103 final class SyntheticKeyboardHandler { 5104 public void process(KeyEvent event) { 5105 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5106 return; 5107 } 5108 5109 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5110 final int keyCode = event.getKeyCode(); 5111 final int metaState = event.getMetaState(); 5112 5113 // Check for fallback actions specified by the key character map. 5114 KeyCharacterMap.FallbackAction fallbackAction = 5115 kcm.getFallbackAction(keyCode, metaState); 5116 if (fallbackAction != null) { 5117 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5118 KeyEvent fallbackEvent = KeyEvent.obtain( 5119 event.getDownTime(), event.getEventTime(), 5120 event.getAction(), fallbackAction.keyCode, 5121 event.getRepeatCount(), fallbackAction.metaState, 5122 event.getDeviceId(), event.getScanCode(), 5123 flags, event.getSource(), null); 5124 fallbackAction.recycle(); 5125 enqueueInputEvent(fallbackEvent); 5126 } 5127 } 5128 } 5129 5130 /** 5131 * Returns true if the key is used for keyboard navigation. 5132 * @param keyEvent The key event. 5133 * @return True if the key is used for keyboard navigation. 5134 */ 5135 private static boolean isNavigationKey(KeyEvent keyEvent) { 5136 switch (keyEvent.getKeyCode()) { 5137 case KeyEvent.KEYCODE_DPAD_LEFT: 5138 case KeyEvent.KEYCODE_DPAD_RIGHT: 5139 case KeyEvent.KEYCODE_DPAD_UP: 5140 case KeyEvent.KEYCODE_DPAD_DOWN: 5141 case KeyEvent.KEYCODE_DPAD_CENTER: 5142 case KeyEvent.KEYCODE_PAGE_UP: 5143 case KeyEvent.KEYCODE_PAGE_DOWN: 5144 case KeyEvent.KEYCODE_MOVE_HOME: 5145 case KeyEvent.KEYCODE_MOVE_END: 5146 case KeyEvent.KEYCODE_TAB: 5147 case KeyEvent.KEYCODE_SPACE: 5148 case KeyEvent.KEYCODE_ENTER: 5149 return true; 5150 } 5151 return false; 5152 } 5153 5154 /** 5155 * Returns true if the key is used for typing. 5156 * @param keyEvent The key event. 5157 * @return True if the key is used for typing. 5158 */ 5159 private static boolean isTypingKey(KeyEvent keyEvent) { 5160 return keyEvent.getUnicodeChar() > 0; 5161 } 5162 5163 /** 5164 * See if the key event means we should leave touch mode (and leave touch mode if so). 5165 * @param event The key event. 5166 * @return Whether this key event should be consumed (meaning the act of 5167 * leaving touch mode alone is considered the event). 5168 */ 5169 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5170 // Only relevant in touch mode. 5171 if (!mAttachInfo.mInTouchMode) { 5172 return false; 5173 } 5174 5175 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5176 final int action = event.getAction(); 5177 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5178 return false; 5179 } 5180 5181 // Don't leave touch mode if the IME told us not to. 5182 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5183 return false; 5184 } 5185 5186 // If the key can be used for keyboard navigation then leave touch mode 5187 // and select a focused view if needed (in ensureTouchMode). 5188 // When a new focused view is selected, we consume the navigation key because 5189 // navigation doesn't make much sense unless a view already has focus so 5190 // the key's purpose is to set focus. 5191 if (isNavigationKey(event)) { 5192 return ensureTouchMode(false); 5193 } 5194 5195 // If the key can be used for typing then leave touch mode 5196 // and select a focused view if needed (in ensureTouchMode). 5197 // Always allow the view to process the typing key. 5198 if (isTypingKey(event)) { 5199 ensureTouchMode(false); 5200 return false; 5201 } 5202 5203 return false; 5204 } 5205 5206 /* drag/drop */ 5207 void setLocalDragState(Object obj) { 5208 mLocalDragState = obj; 5209 } 5210 5211 private void handleDragEvent(DragEvent event) { 5212 // From the root, only drag start/end/location are dispatched. entered/exited 5213 // are determined and dispatched by the viewgroup hierarchy, who then report 5214 // that back here for ultimate reporting back to the framework. 5215 if (mView != null && mAdded) { 5216 final int what = event.mAction; 5217 5218 if (what == DragEvent.ACTION_DRAG_EXITED) { 5219 // A direct EXITED event means that the window manager knows we've just crossed 5220 // a window boundary, so the current drag target within this one must have 5221 // just been exited. Send it the usual notifications and then we're done 5222 // for now. 5223 mView.dispatchDragEvent(event); 5224 } else { 5225 // Cache the drag description when the operation starts, then fill it in 5226 // on subsequent calls as a convenience 5227 if (what == DragEvent.ACTION_DRAG_STARTED) { 5228 mCurrentDragView = null; // Start the current-recipient tracking 5229 mDragDescription = event.mClipDescription; 5230 } else { 5231 event.mClipDescription = mDragDescription; 5232 } 5233 5234 // For events with a [screen] location, translate into window coordinates 5235 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5236 mDragPoint.set(event.mX, event.mY); 5237 if (mTranslator != null) { 5238 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5239 } 5240 5241 if (mCurScrollY != 0) { 5242 mDragPoint.offset(0, mCurScrollY); 5243 } 5244 5245 event.mX = mDragPoint.x; 5246 event.mY = mDragPoint.y; 5247 } 5248 5249 // Remember who the current drag target is pre-dispatch 5250 final View prevDragView = mCurrentDragView; 5251 5252 // Now dispatch the drag/drop event 5253 boolean result = mView.dispatchDragEvent(event); 5254 5255 // If we changed apparent drag target, tell the OS about it 5256 if (prevDragView != mCurrentDragView) { 5257 try { 5258 if (prevDragView != null) { 5259 mWindowSession.dragRecipientExited(mWindow); 5260 } 5261 if (mCurrentDragView != null) { 5262 mWindowSession.dragRecipientEntered(mWindow); 5263 } 5264 } catch (RemoteException e) { 5265 Slog.e(TAG, "Unable to note drag target change"); 5266 } 5267 } 5268 5269 // Report the drop result when we're done 5270 if (what == DragEvent.ACTION_DROP) { 5271 mDragDescription = null; 5272 try { 5273 Log.i(TAG, "Reporting drop result: " + result); 5274 mWindowSession.reportDropResult(mWindow, result); 5275 } catch (RemoteException e) { 5276 Log.e(TAG, "Unable to report drop result"); 5277 } 5278 } 5279 5280 // When the drag operation ends, release any local state object 5281 // that may have been in use 5282 if (what == DragEvent.ACTION_DRAG_ENDED) { 5283 setLocalDragState(null); 5284 } 5285 } 5286 } 5287 event.recycle(); 5288 } 5289 5290 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5291 if (mSeq != args.seq) { 5292 // The sequence has changed, so we need to update our value and make 5293 // sure to do a traversal afterward so the window manager is given our 5294 // most recent data. 5295 mSeq = args.seq; 5296 mAttachInfo.mForceReportNewAttributes = true; 5297 scheduleTraversals(); 5298 } 5299 if (mView == null) return; 5300 if (args.localChanges != 0) { 5301 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5302 } 5303 5304 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5305 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5306 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5307 mView.dispatchSystemUiVisibilityChanged(visibility); 5308 } 5309 } 5310 5311 public void handleDispatchWindowShown() { 5312 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5313 } 5314 5315 public void getLastTouchPoint(Point outLocation) { 5316 outLocation.x = (int) mLastTouchPoint.x; 5317 outLocation.y = (int) mLastTouchPoint.y; 5318 } 5319 5320 public void setDragFocus(View newDragTarget) { 5321 if (mCurrentDragView != newDragTarget) { 5322 mCurrentDragView = newDragTarget; 5323 } 5324 } 5325 5326 private AudioManager getAudioManager() { 5327 if (mView == null) { 5328 throw new IllegalStateException("getAudioManager called when there is no mView"); 5329 } 5330 if (mAudioManager == null) { 5331 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5332 } 5333 return mAudioManager; 5334 } 5335 5336 public AccessibilityInteractionController getAccessibilityInteractionController() { 5337 if (mView == null) { 5338 throw new IllegalStateException("getAccessibilityInteractionController" 5339 + " called when there is no mView"); 5340 } 5341 if (mAccessibilityInteractionController == null) { 5342 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5343 } 5344 return mAccessibilityInteractionController; 5345 } 5346 5347 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5348 boolean insetsPending) throws RemoteException { 5349 5350 float appScale = mAttachInfo.mApplicationScale; 5351 boolean restore = false; 5352 if (params != null && mTranslator != null) { 5353 restore = true; 5354 params.backup(); 5355 mTranslator.translateWindowLayout(params); 5356 } 5357 if (params != null) { 5358 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5359 } 5360 mPendingConfiguration.seq = 0; 5361 //Log.d(TAG, ">>>>>> CALLING relayout"); 5362 if (params != null && mOrigWindowType != params.type) { 5363 // For compatibility with old apps, don't crash here. 5364 if (mTargetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5365 Slog.w(TAG, "Window type can not be changed after " 5366 + "the window is added; ignoring change of " + mView); 5367 params.type = mOrigWindowType; 5368 } 5369 } 5370 int relayoutResult = mWindowSession.relayout( 5371 mWindow, mSeq, params, 5372 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5373 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5374 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5375 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5376 mPendingStableInsets, mPendingOutsets, mPendingConfiguration, mSurface); 5377 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5378 if (restore) { 5379 params.restore(); 5380 } 5381 5382 if (mTranslator != null) { 5383 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5384 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5385 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5386 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5387 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5388 } 5389 return relayoutResult; 5390 } 5391 5392 /** 5393 * {@inheritDoc} 5394 */ 5395 @Override 5396 public void playSoundEffect(int effectId) { 5397 checkThread(); 5398 5399 try { 5400 final AudioManager audioManager = getAudioManager(); 5401 5402 switch (effectId) { 5403 case SoundEffectConstants.CLICK: 5404 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5405 return; 5406 case SoundEffectConstants.NAVIGATION_DOWN: 5407 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5408 return; 5409 case SoundEffectConstants.NAVIGATION_LEFT: 5410 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5411 return; 5412 case SoundEffectConstants.NAVIGATION_RIGHT: 5413 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5414 return; 5415 case SoundEffectConstants.NAVIGATION_UP: 5416 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5417 return; 5418 default: 5419 throw new IllegalArgumentException("unknown effect id " + effectId + 5420 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5421 } 5422 } catch (IllegalStateException e) { 5423 // Exception thrown by getAudioManager() when mView is null 5424 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5425 e.printStackTrace(); 5426 } 5427 } 5428 5429 /** 5430 * {@inheritDoc} 5431 */ 5432 @Override 5433 public boolean performHapticFeedback(int effectId, boolean always) { 5434 try { 5435 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5436 } catch (RemoteException e) { 5437 return false; 5438 } 5439 } 5440 5441 /** 5442 * {@inheritDoc} 5443 */ 5444 @Override 5445 public View focusSearch(View focused, int direction) { 5446 checkThread(); 5447 if (!(mView instanceof ViewGroup)) { 5448 return null; 5449 } 5450 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5451 } 5452 5453 public void debug() { 5454 mView.debug(); 5455 } 5456 5457 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5458 String innerPrefix = prefix + " "; 5459 writer.print(prefix); writer.println("ViewRoot:"); 5460 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5461 writer.print(" mRemoved="); writer.println(mRemoved); 5462 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5463 writer.println(mConsumeBatchedInputScheduled); 5464 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5465 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5466 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5467 writer.println(mPendingInputEventCount); 5468 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5469 writer.println(mProcessInputEventsScheduled); 5470 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5471 writer.print(mTraversalScheduled); 5472 if (mTraversalScheduled) { 5473 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5474 } else { 5475 writer.println(); 5476 } 5477 mFirstInputStage.dump(innerPrefix, writer); 5478 5479 mChoreographer.dump(prefix, writer); 5480 5481 writer.print(prefix); writer.println("View Hierarchy:"); 5482 dumpViewHierarchy(innerPrefix, writer, mView); 5483 } 5484 5485 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5486 writer.print(prefix); 5487 if (view == null) { 5488 writer.println("null"); 5489 return; 5490 } 5491 writer.println(view.toString()); 5492 if (!(view instanceof ViewGroup)) { 5493 return; 5494 } 5495 ViewGroup grp = (ViewGroup)view; 5496 final int N = grp.getChildCount(); 5497 if (N <= 0) { 5498 return; 5499 } 5500 prefix = prefix + " "; 5501 for (int i=0; i<N; i++) { 5502 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5503 } 5504 } 5505 5506 public void dumpGfxInfo(int[] info) { 5507 info[0] = info[1] = 0; 5508 if (mView != null) { 5509 getGfxInfo(mView, info); 5510 } 5511 } 5512 5513 private static void getGfxInfo(View view, int[] info) { 5514 RenderNode renderNode = view.mRenderNode; 5515 info[0]++; 5516 if (renderNode != null) { 5517 info[1] += renderNode.getDebugSize(); 5518 } 5519 5520 if (view instanceof ViewGroup) { 5521 ViewGroup group = (ViewGroup) view; 5522 5523 int count = group.getChildCount(); 5524 for (int i = 0; i < count; i++) { 5525 getGfxInfo(group.getChildAt(i), info); 5526 } 5527 } 5528 } 5529 5530 /** 5531 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5532 * @return True, request has been queued. False, request has been completed. 5533 */ 5534 boolean die(boolean immediate) { 5535 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5536 // done by dispatchDetachedFromWindow will cause havoc on return. 5537 if (immediate && !mIsInTraversal) { 5538 doDie(); 5539 return false; 5540 } 5541 5542 if (!mIsDrawing) { 5543 destroyHardwareRenderer(); 5544 } else { 5545 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5546 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5547 } 5548 mHandler.sendEmptyMessage(MSG_DIE); 5549 return true; 5550 } 5551 5552 void doDie() { 5553 checkThread(); 5554 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5555 synchronized (this) { 5556 if (mRemoved) { 5557 return; 5558 } 5559 mRemoved = true; 5560 if (mAdded) { 5561 dispatchDetachedFromWindow(); 5562 } 5563 5564 if (mAdded && !mFirst) { 5565 destroyHardwareRenderer(); 5566 5567 if (mView != null) { 5568 int viewVisibility = mView.getVisibility(); 5569 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5570 if (mWindowAttributesChanged || viewVisibilityChanged) { 5571 // If layout params have been changed, first give them 5572 // to the window manager to make sure it has the correct 5573 // animation info. 5574 try { 5575 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5576 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5577 mWindowSession.finishDrawing(mWindow); 5578 } 5579 } catch (RemoteException e) { 5580 } 5581 } 5582 5583 mSurface.release(); 5584 } 5585 } 5586 5587 mAdded = false; 5588 } 5589 WindowManagerGlobal.getInstance().doRemoveView(this); 5590 } 5591 5592 public void requestUpdateConfiguration(Configuration config) { 5593 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5594 mHandler.sendMessage(msg); 5595 } 5596 5597 public void loadSystemProperties() { 5598 mHandler.post(new Runnable() { 5599 @Override 5600 public void run() { 5601 // Profiling 5602 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5603 profileRendering(mAttachInfo.mHasWindowFocus); 5604 5605 // Hardware rendering 5606 if (mAttachInfo.mHardwareRenderer != null) { 5607 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5608 invalidate(); 5609 } 5610 } 5611 5612 // Layout debugging 5613 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5614 if (layout != mAttachInfo.mDebugLayout) { 5615 mAttachInfo.mDebugLayout = layout; 5616 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5617 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5618 } 5619 } 5620 } 5621 }); 5622 } 5623 5624 private void destroyHardwareRenderer() { 5625 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5626 5627 if (hardwareRenderer != null) { 5628 if (mView != null) { 5629 hardwareRenderer.destroyHardwareResources(mView); 5630 } 5631 hardwareRenderer.destroy(); 5632 hardwareRenderer.setRequested(false); 5633 5634 mAttachInfo.mHardwareRenderer = null; 5635 mAttachInfo.mHardwareAccelerated = false; 5636 } 5637 } 5638 5639 public void dispatchFinishInputConnection(InputConnection connection) { 5640 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5641 mHandler.sendMessage(msg); 5642 } 5643 5644 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5645 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 5646 Configuration newConfig) { 5647 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5648 + " contentInsets=" + contentInsets.toShortString() 5649 + " visibleInsets=" + visibleInsets.toShortString() 5650 + " reportDraw=" + reportDraw); 5651 5652 // Tell all listeners that we are resizing the window so that the chrome can get 5653 // updated as fast as possible on a separate thread, 5654 if (mDragResizing) { 5655 synchronized (mWindowCallbacks) { 5656 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 5657 mWindowCallbacks.get(i).onWindowSizeIsChanging(frame); 5658 } 5659 } 5660 } 5661 5662 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5663 if (mTranslator != null) { 5664 mTranslator.translateRectInScreenToAppWindow(frame); 5665 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5666 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5667 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5668 } 5669 SomeArgs args = SomeArgs.obtain(); 5670 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5671 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5672 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5673 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5674 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5675 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5676 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5677 args.arg7 = sameProcessCall ? new Rect(outsets) : outsets; 5678 msg.obj = args; 5679 mHandler.sendMessage(msg); 5680 } 5681 5682 public void dispatchMoved(int newX, int newY) { 5683 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5684 if (mTranslator != null) { 5685 PointF point = new PointF(newX, newY); 5686 mTranslator.translatePointInScreenToAppWindow(point); 5687 newX = (int) (point.x + 0.5); 5688 newY = (int) (point.y + 0.5); 5689 } 5690 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5691 mHandler.sendMessage(msg); 5692 } 5693 5694 /** 5695 * Represents a pending input event that is waiting in a queue. 5696 * 5697 * Input events are processed in serial order by the timestamp specified by 5698 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5699 * one input event to the application at a time and waits for the application 5700 * to finish handling it before delivering the next one. 5701 * 5702 * However, because the application or IME can synthesize and inject multiple 5703 * key events at a time without going through the input dispatcher, we end up 5704 * needing a queue on the application's side. 5705 */ 5706 private static final class QueuedInputEvent { 5707 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5708 public static final int FLAG_DEFERRED = 1 << 1; 5709 public static final int FLAG_FINISHED = 1 << 2; 5710 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5711 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5712 public static final int FLAG_UNHANDLED = 1 << 5; 5713 5714 public QueuedInputEvent mNext; 5715 5716 public InputEvent mEvent; 5717 public InputEventReceiver mReceiver; 5718 public int mFlags; 5719 5720 public boolean shouldSkipIme() { 5721 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5722 return true; 5723 } 5724 return mEvent instanceof MotionEvent 5725 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5726 } 5727 5728 public boolean shouldSendToSynthesizer() { 5729 if ((mFlags & FLAG_UNHANDLED) != 0) { 5730 return true; 5731 } 5732 5733 return false; 5734 } 5735 5736 @Override 5737 public String toString() { 5738 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5739 boolean hasPrevious = false; 5740 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5741 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5742 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5743 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5744 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5745 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5746 if (!hasPrevious) { 5747 sb.append("0"); 5748 } 5749 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5750 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5751 sb.append(", mEvent=" + mEvent + "}"); 5752 return sb.toString(); 5753 } 5754 5755 private boolean flagToString(String name, int flag, 5756 boolean hasPrevious, StringBuilder sb) { 5757 if ((mFlags & flag) != 0) { 5758 if (hasPrevious) { 5759 sb.append("|"); 5760 } 5761 sb.append(name); 5762 return true; 5763 } 5764 return hasPrevious; 5765 } 5766 } 5767 5768 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5769 InputEventReceiver receiver, int flags) { 5770 QueuedInputEvent q = mQueuedInputEventPool; 5771 if (q != null) { 5772 mQueuedInputEventPoolSize -= 1; 5773 mQueuedInputEventPool = q.mNext; 5774 q.mNext = null; 5775 } else { 5776 q = new QueuedInputEvent(); 5777 } 5778 5779 q.mEvent = event; 5780 q.mReceiver = receiver; 5781 q.mFlags = flags; 5782 return q; 5783 } 5784 5785 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5786 q.mEvent = null; 5787 q.mReceiver = null; 5788 5789 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5790 mQueuedInputEventPoolSize += 1; 5791 q.mNext = mQueuedInputEventPool; 5792 mQueuedInputEventPool = q; 5793 } 5794 } 5795 5796 void enqueueInputEvent(InputEvent event) { 5797 enqueueInputEvent(event, null, 0, false); 5798 } 5799 5800 void enqueueInputEvent(InputEvent event, 5801 InputEventReceiver receiver, int flags, boolean processImmediately) { 5802 adjustInputEventForCompatibility(event); 5803 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5804 5805 // Always enqueue the input event in order, regardless of its time stamp. 5806 // We do this because the application or the IME may inject key events 5807 // in response to touch events and we want to ensure that the injected keys 5808 // are processed in the order they were received and we cannot trust that 5809 // the time stamp of injected events are monotonic. 5810 QueuedInputEvent last = mPendingInputEventTail; 5811 if (last == null) { 5812 mPendingInputEventHead = q; 5813 mPendingInputEventTail = q; 5814 } else { 5815 last.mNext = q; 5816 mPendingInputEventTail = q; 5817 } 5818 mPendingInputEventCount += 1; 5819 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5820 mPendingInputEventCount); 5821 5822 if (processImmediately) { 5823 doProcessInputEvents(); 5824 } else { 5825 scheduleProcessInputEvents(); 5826 } 5827 } 5828 5829 private void scheduleProcessInputEvents() { 5830 if (!mProcessInputEventsScheduled) { 5831 mProcessInputEventsScheduled = true; 5832 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5833 msg.setAsynchronous(true); 5834 mHandler.sendMessage(msg); 5835 } 5836 } 5837 5838 void doProcessInputEvents() { 5839 // Deliver all pending input events in the queue. 5840 while (mPendingInputEventHead != null) { 5841 QueuedInputEvent q = mPendingInputEventHead; 5842 mPendingInputEventHead = q.mNext; 5843 if (mPendingInputEventHead == null) { 5844 mPendingInputEventTail = null; 5845 } 5846 q.mNext = null; 5847 5848 mPendingInputEventCount -= 1; 5849 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5850 mPendingInputEventCount); 5851 5852 long eventTime = q.mEvent.getEventTimeNano(); 5853 long oldestEventTime = eventTime; 5854 if (q.mEvent instanceof MotionEvent) { 5855 MotionEvent me = (MotionEvent)q.mEvent; 5856 if (me.getHistorySize() > 0) { 5857 oldestEventTime = me.getHistoricalEventTimeNano(0); 5858 } 5859 } 5860 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5861 5862 deliverInputEvent(q); 5863 } 5864 5865 // We are done processing all input events that we can process right now 5866 // so we can clear the pending flag immediately. 5867 if (mProcessInputEventsScheduled) { 5868 mProcessInputEventsScheduled = false; 5869 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5870 } 5871 } 5872 5873 private void deliverInputEvent(QueuedInputEvent q) { 5874 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5875 q.mEvent.getSequenceNumber()); 5876 if (mInputEventConsistencyVerifier != null) { 5877 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5878 } 5879 5880 InputStage stage; 5881 if (q.shouldSendToSynthesizer()) { 5882 stage = mSyntheticInputStage; 5883 } else { 5884 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5885 } 5886 5887 if (stage != null) { 5888 stage.deliver(q); 5889 } else { 5890 finishInputEvent(q); 5891 } 5892 } 5893 5894 private void finishInputEvent(QueuedInputEvent q) { 5895 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5896 q.mEvent.getSequenceNumber()); 5897 5898 if (q.mReceiver != null) { 5899 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5900 q.mReceiver.finishInputEvent(q.mEvent, handled); 5901 } else { 5902 q.mEvent.recycleIfNeededAfterDispatch(); 5903 } 5904 5905 recycleQueuedInputEvent(q); 5906 } 5907 5908 private void adjustInputEventForCompatibility(InputEvent e) { 5909 if (mTargetSdkVersion < Build.VERSION_CODES.M && e instanceof MotionEvent) { 5910 MotionEvent motion = (MotionEvent) e; 5911 final int mask = 5912 MotionEvent.BUTTON_STYLUS_PRIMARY | MotionEvent.BUTTON_STYLUS_SECONDARY; 5913 final int buttonState = motion.getButtonState(); 5914 final int compatButtonState = (buttonState & mask) >> 4; 5915 if (compatButtonState != 0) { 5916 motion.setButtonState(buttonState | compatButtonState); 5917 } 5918 } 5919 } 5920 5921 static boolean isTerminalInputEvent(InputEvent event) { 5922 if (event instanceof KeyEvent) { 5923 final KeyEvent keyEvent = (KeyEvent)event; 5924 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5925 } else { 5926 final MotionEvent motionEvent = (MotionEvent)event; 5927 final int action = motionEvent.getAction(); 5928 return action == MotionEvent.ACTION_UP 5929 || action == MotionEvent.ACTION_CANCEL 5930 || action == MotionEvent.ACTION_HOVER_EXIT; 5931 } 5932 } 5933 5934 void scheduleConsumeBatchedInput() { 5935 if (!mConsumeBatchedInputScheduled) { 5936 mConsumeBatchedInputScheduled = true; 5937 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5938 mConsumedBatchedInputRunnable, null); 5939 } 5940 } 5941 5942 void unscheduleConsumeBatchedInput() { 5943 if (mConsumeBatchedInputScheduled) { 5944 mConsumeBatchedInputScheduled = false; 5945 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5946 mConsumedBatchedInputRunnable, null); 5947 } 5948 } 5949 5950 void scheduleConsumeBatchedInputImmediately() { 5951 if (!mConsumeBatchedInputImmediatelyScheduled) { 5952 unscheduleConsumeBatchedInput(); 5953 mConsumeBatchedInputImmediatelyScheduled = true; 5954 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5955 } 5956 } 5957 5958 void doConsumeBatchedInput(long frameTimeNanos) { 5959 if (mConsumeBatchedInputScheduled) { 5960 mConsumeBatchedInputScheduled = false; 5961 if (mInputEventReceiver != null) { 5962 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5963 && frameTimeNanos != -1) { 5964 // If we consumed a batch here, we want to go ahead and schedule the 5965 // consumption of batched input events on the next frame. Otherwise, we would 5966 // wait until we have more input events pending and might get starved by other 5967 // things occurring in the process. If the frame time is -1, however, then 5968 // we're in a non-batching mode, so there's no need to schedule this. 5969 scheduleConsumeBatchedInput(); 5970 } 5971 } 5972 doProcessInputEvents(); 5973 } 5974 } 5975 5976 final class TraversalRunnable implements Runnable { 5977 @Override 5978 public void run() { 5979 doTraversal(); 5980 } 5981 } 5982 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5983 5984 final class WindowInputEventReceiver extends InputEventReceiver { 5985 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5986 super(inputChannel, looper); 5987 } 5988 5989 @Override 5990 public void onInputEvent(InputEvent event) { 5991 enqueueInputEvent(event, this, 0, true); 5992 } 5993 5994 @Override 5995 public void onBatchedInputEventPending() { 5996 if (mUnbufferedInputDispatch) { 5997 super.onBatchedInputEventPending(); 5998 } else { 5999 scheduleConsumeBatchedInput(); 6000 } 6001 } 6002 6003 @Override 6004 public void dispose() { 6005 unscheduleConsumeBatchedInput(); 6006 super.dispose(); 6007 } 6008 } 6009 WindowInputEventReceiver mInputEventReceiver; 6010 6011 final class ConsumeBatchedInputRunnable implements Runnable { 6012 @Override 6013 public void run() { 6014 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 6015 } 6016 } 6017 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 6018 new ConsumeBatchedInputRunnable(); 6019 boolean mConsumeBatchedInputScheduled; 6020 6021 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 6022 @Override 6023 public void run() { 6024 doConsumeBatchedInput(-1); 6025 } 6026 } 6027 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 6028 new ConsumeBatchedInputImmediatelyRunnable(); 6029 boolean mConsumeBatchedInputImmediatelyScheduled; 6030 6031 final class InvalidateOnAnimationRunnable implements Runnable { 6032 private boolean mPosted; 6033 private final ArrayList<View> mViews = new ArrayList<View>(); 6034 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 6035 new ArrayList<AttachInfo.InvalidateInfo>(); 6036 private View[] mTempViews; 6037 private AttachInfo.InvalidateInfo[] mTempViewRects; 6038 6039 public void addView(View view) { 6040 synchronized (this) { 6041 mViews.add(view); 6042 postIfNeededLocked(); 6043 } 6044 } 6045 6046 public void addViewRect(AttachInfo.InvalidateInfo info) { 6047 synchronized (this) { 6048 mViewRects.add(info); 6049 postIfNeededLocked(); 6050 } 6051 } 6052 6053 public void removeView(View view) { 6054 synchronized (this) { 6055 mViews.remove(view); 6056 6057 for (int i = mViewRects.size(); i-- > 0; ) { 6058 AttachInfo.InvalidateInfo info = mViewRects.get(i); 6059 if (info.target == view) { 6060 mViewRects.remove(i); 6061 info.recycle(); 6062 } 6063 } 6064 6065 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6066 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6067 mPosted = false; 6068 } 6069 } 6070 } 6071 6072 @Override 6073 public void run() { 6074 final int viewCount; 6075 final int viewRectCount; 6076 synchronized (this) { 6077 mPosted = false; 6078 6079 viewCount = mViews.size(); 6080 if (viewCount != 0) { 6081 mTempViews = mViews.toArray(mTempViews != null 6082 ? mTempViews : new View[viewCount]); 6083 mViews.clear(); 6084 } 6085 6086 viewRectCount = mViewRects.size(); 6087 if (viewRectCount != 0) { 6088 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6089 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6090 mViewRects.clear(); 6091 } 6092 } 6093 6094 for (int i = 0; i < viewCount; i++) { 6095 mTempViews[i].invalidate(); 6096 mTempViews[i] = null; 6097 } 6098 6099 for (int i = 0; i < viewRectCount; i++) { 6100 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6101 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6102 info.recycle(); 6103 } 6104 } 6105 6106 private void postIfNeededLocked() { 6107 if (!mPosted) { 6108 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6109 mPosted = true; 6110 } 6111 } 6112 } 6113 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6114 new InvalidateOnAnimationRunnable(); 6115 6116 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6117 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6118 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6119 } 6120 6121 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6122 long delayMilliseconds) { 6123 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6124 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6125 } 6126 6127 public void dispatchInvalidateOnAnimation(View view) { 6128 mInvalidateOnAnimationRunnable.addView(view); 6129 } 6130 6131 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6132 mInvalidateOnAnimationRunnable.addViewRect(info); 6133 } 6134 6135 public void cancelInvalidate(View view) { 6136 mHandler.removeMessages(MSG_INVALIDATE, view); 6137 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6138 // them to the pool 6139 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6140 mInvalidateOnAnimationRunnable.removeView(view); 6141 } 6142 6143 public void dispatchInputEvent(InputEvent event) { 6144 dispatchInputEvent(event, null); 6145 } 6146 6147 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6148 SomeArgs args = SomeArgs.obtain(); 6149 args.arg1 = event; 6150 args.arg2 = receiver; 6151 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6152 msg.setAsynchronous(true); 6153 mHandler.sendMessage(msg); 6154 } 6155 6156 public void synthesizeInputEvent(InputEvent event) { 6157 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6158 msg.setAsynchronous(true); 6159 mHandler.sendMessage(msg); 6160 } 6161 6162 public void dispatchKeyFromIme(KeyEvent event) { 6163 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6164 msg.setAsynchronous(true); 6165 mHandler.sendMessage(msg); 6166 } 6167 6168 /** 6169 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6170 * 6171 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6172 * passes in. 6173 */ 6174 public void dispatchUnhandledInputEvent(InputEvent event) { 6175 if (event instanceof MotionEvent) { 6176 event = MotionEvent.obtain((MotionEvent) event); 6177 } 6178 synthesizeInputEvent(event); 6179 } 6180 6181 public void dispatchAppVisibility(boolean visible) { 6182 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6183 msg.arg1 = visible ? 1 : 0; 6184 mHandler.sendMessage(msg); 6185 } 6186 6187 public void dispatchGetNewSurface() { 6188 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6189 mHandler.sendMessage(msg); 6190 } 6191 6192 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6193 Message msg = Message.obtain(); 6194 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6195 msg.arg1 = hasFocus ? 1 : 0; 6196 msg.arg2 = inTouchMode ? 1 : 0; 6197 mHandler.sendMessage(msg); 6198 } 6199 6200 public void dispatchWindowShown() { 6201 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6202 } 6203 6204 public void dispatchCloseSystemDialogs(String reason) { 6205 Message msg = Message.obtain(); 6206 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6207 msg.obj = reason; 6208 mHandler.sendMessage(msg); 6209 } 6210 6211 public void dispatchDragEvent(DragEvent event) { 6212 final int what; 6213 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6214 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6215 mHandler.removeMessages(what); 6216 } else { 6217 what = MSG_DISPATCH_DRAG_EVENT; 6218 } 6219 Message msg = mHandler.obtainMessage(what, event); 6220 mHandler.sendMessage(msg); 6221 } 6222 6223 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6224 int localValue, int localChanges) { 6225 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6226 args.seq = seq; 6227 args.globalVisibility = globalVisibility; 6228 args.localValue = localValue; 6229 args.localChanges = localChanges; 6230 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6231 } 6232 6233 public void dispatchCheckFocus() { 6234 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6235 // This will result in a call to checkFocus() below. 6236 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6237 } 6238 } 6239 6240 /** 6241 * Post a callback to send a 6242 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6243 * This event is send at most once every 6244 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6245 */ 6246 private void postSendWindowContentChangedCallback(View source, int changeType) { 6247 if (mSendWindowContentChangedAccessibilityEvent == null) { 6248 mSendWindowContentChangedAccessibilityEvent = 6249 new SendWindowContentChangedAccessibilityEvent(); 6250 } 6251 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6252 } 6253 6254 /** 6255 * Remove a posted callback to send a 6256 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6257 */ 6258 private void removeSendWindowContentChangedCallback() { 6259 if (mSendWindowContentChangedAccessibilityEvent != null) { 6260 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6261 } 6262 } 6263 6264 @Override 6265 public boolean showContextMenuForChild(View originalView) { 6266 return false; 6267 } 6268 6269 @Override 6270 public boolean showContextMenuForChild(View originalView, float x, float y) { 6271 return false; 6272 } 6273 6274 @Override 6275 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6276 return null; 6277 } 6278 6279 @Override 6280 public ActionMode startActionModeForChild( 6281 View originalView, ActionMode.Callback callback, int type) { 6282 return null; 6283 } 6284 6285 @Override 6286 public void createContextMenu(ContextMenu menu) { 6287 } 6288 6289 @Override 6290 public void childDrawableStateChanged(View child) { 6291 } 6292 6293 @Override 6294 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6295 if (mView == null || mStopped || mPausedForTransition) { 6296 return false; 6297 } 6298 // Intercept accessibility focus events fired by virtual nodes to keep 6299 // track of accessibility focus position in such nodes. 6300 final int eventType = event.getEventType(); 6301 switch (eventType) { 6302 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6303 final long sourceNodeId = event.getSourceNodeId(); 6304 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6305 sourceNodeId); 6306 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6307 if (source != null) { 6308 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6309 if (provider != null) { 6310 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6311 sourceNodeId); 6312 final AccessibilityNodeInfo node; 6313 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6314 node = provider.createAccessibilityNodeInfo( 6315 AccessibilityNodeProvider.HOST_VIEW_ID); 6316 } else { 6317 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6318 } 6319 setAccessibilityFocus(source, node); 6320 } 6321 } 6322 } break; 6323 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6324 final long sourceNodeId = event.getSourceNodeId(); 6325 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6326 sourceNodeId); 6327 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6328 if (source != null) { 6329 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6330 if (provider != null) { 6331 setAccessibilityFocus(null, null); 6332 } 6333 } 6334 } break; 6335 6336 6337 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6338 handleWindowContentChangedEvent(event); 6339 } break; 6340 } 6341 mAccessibilityManager.sendAccessibilityEvent(event); 6342 return true; 6343 } 6344 6345 /** 6346 * Updates the focused virtual view, when necessary, in response to a 6347 * content changed event. 6348 * <p> 6349 * This is necessary to get updated bounds after a position change. 6350 * 6351 * @param event an accessibility event of type 6352 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6353 */ 6354 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6355 final View focusedHost = mAccessibilityFocusedHost; 6356 if (focusedHost == null || mAccessibilityFocusedVirtualView == null) { 6357 // No virtual view focused, nothing to do here. 6358 return; 6359 } 6360 6361 final AccessibilityNodeProvider provider = focusedHost.getAccessibilityNodeProvider(); 6362 if (provider == null) { 6363 // Error state: virtual view with no provider. Clear focus. 6364 mAccessibilityFocusedHost = null; 6365 mAccessibilityFocusedVirtualView = null; 6366 focusedHost.clearAccessibilityFocusNoCallbacks(); 6367 return; 6368 } 6369 6370 // We only care about change types that may affect the bounds of the 6371 // focused virtual view. 6372 final int changes = event.getContentChangeTypes(); 6373 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6374 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6375 return; 6376 } 6377 6378 final long eventSourceNodeId = event.getSourceNodeId(); 6379 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6380 6381 // Search up the tree for subtree containment. 6382 boolean hostInSubtree = false; 6383 View root = mAccessibilityFocusedHost; 6384 while (root != null && !hostInSubtree) { 6385 if (changedViewId == root.getAccessibilityViewId()) { 6386 hostInSubtree = true; 6387 } else { 6388 final ViewParent parent = root.getParent(); 6389 if (parent instanceof View) { 6390 root = (View) parent; 6391 } else { 6392 root = null; 6393 } 6394 } 6395 } 6396 6397 // We care only about changes in subtrees containing the host view. 6398 if (!hostInSubtree) { 6399 return; 6400 } 6401 6402 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6403 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6404 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6405 // TODO: Should we clear the focused virtual view? 6406 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6407 } 6408 6409 // Refresh the node for the focused virtual view. 6410 final Rect oldBounds = mTempRect; 6411 mAccessibilityFocusedVirtualView.getBoundsInScreen(oldBounds); 6412 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6413 if (mAccessibilityFocusedVirtualView == null) { 6414 // Error state: The node no longer exists. Clear focus. 6415 mAccessibilityFocusedHost = null; 6416 focusedHost.clearAccessibilityFocusNoCallbacks(); 6417 6418 // This will probably fail, but try to keep the provider's internal 6419 // state consistent by clearing focus. 6420 provider.performAction(focusedChildId, 6421 AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS.getId(), null); 6422 invalidateRectOnScreen(oldBounds); 6423 } else { 6424 // The node was refreshed, invalidate bounds if necessary. 6425 final Rect newBounds = mAccessibilityFocusedVirtualView.getBoundsInScreen(); 6426 if (!oldBounds.equals(newBounds)) { 6427 oldBounds.union(newBounds); 6428 invalidateRectOnScreen(oldBounds); 6429 } 6430 } 6431 } 6432 6433 @Override 6434 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6435 postSendWindowContentChangedCallback(source, changeType); 6436 } 6437 6438 @Override 6439 public boolean canResolveLayoutDirection() { 6440 return true; 6441 } 6442 6443 @Override 6444 public boolean isLayoutDirectionResolved() { 6445 return true; 6446 } 6447 6448 @Override 6449 public int getLayoutDirection() { 6450 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6451 } 6452 6453 @Override 6454 public boolean canResolveTextDirection() { 6455 return true; 6456 } 6457 6458 @Override 6459 public boolean isTextDirectionResolved() { 6460 return true; 6461 } 6462 6463 @Override 6464 public int getTextDirection() { 6465 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6466 } 6467 6468 @Override 6469 public boolean canResolveTextAlignment() { 6470 return true; 6471 } 6472 6473 @Override 6474 public boolean isTextAlignmentResolved() { 6475 return true; 6476 } 6477 6478 @Override 6479 public int getTextAlignment() { 6480 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6481 } 6482 6483 private View getCommonPredecessor(View first, View second) { 6484 if (mTempHashSet == null) { 6485 mTempHashSet = new HashSet<View>(); 6486 } 6487 HashSet<View> seen = mTempHashSet; 6488 seen.clear(); 6489 View firstCurrent = first; 6490 while (firstCurrent != null) { 6491 seen.add(firstCurrent); 6492 ViewParent firstCurrentParent = firstCurrent.mParent; 6493 if (firstCurrentParent instanceof View) { 6494 firstCurrent = (View) firstCurrentParent; 6495 } else { 6496 firstCurrent = null; 6497 } 6498 } 6499 View secondCurrent = second; 6500 while (secondCurrent != null) { 6501 if (seen.contains(secondCurrent)) { 6502 seen.clear(); 6503 return secondCurrent; 6504 } 6505 ViewParent secondCurrentParent = secondCurrent.mParent; 6506 if (secondCurrentParent instanceof View) { 6507 secondCurrent = (View) secondCurrentParent; 6508 } else { 6509 secondCurrent = null; 6510 } 6511 } 6512 seen.clear(); 6513 return null; 6514 } 6515 6516 void checkThread() { 6517 if (mThread != Thread.currentThread()) { 6518 throw new CalledFromWrongThreadException( 6519 "Only the original thread that created a view hierarchy can touch its views."); 6520 } 6521 } 6522 6523 @Override 6524 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6525 // ViewAncestor never intercepts touch event, so this can be a no-op 6526 } 6527 6528 @Override 6529 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6530 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6531 if (rectangle != null) { 6532 mTempRect.set(rectangle); 6533 mTempRect.offset(0, -mCurScrollY); 6534 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6535 try { 6536 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6537 } catch (RemoteException re) { 6538 /* ignore */ 6539 } 6540 } 6541 return scrolled; 6542 } 6543 6544 @Override 6545 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6546 // Do nothing. 6547 } 6548 6549 @Override 6550 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6551 return false; 6552 } 6553 6554 @Override 6555 public void onStopNestedScroll(View target) { 6556 } 6557 6558 @Override 6559 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6560 } 6561 6562 @Override 6563 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6564 int dxUnconsumed, int dyUnconsumed) { 6565 } 6566 6567 @Override 6568 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6569 } 6570 6571 @Override 6572 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6573 return false; 6574 } 6575 6576 @Override 6577 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6578 return false; 6579 } 6580 6581 @Override 6582 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6583 return false; 6584 } 6585 6586 /** 6587 * Force the window to report its next draw. 6588 * <p> 6589 * This method is only supposed to be used to speed up the interaction from SystemUI and window 6590 * manager when waiting for the first frame to be drawn when turning on the screen. DO NOT USE 6591 * unless you fully understand this interaction. 6592 * @hide 6593 */ 6594 public void setReportNextDraw() { 6595 mReportNextDraw = true; 6596 invalidate(); 6597 } 6598 6599 void changeCanvasOpacity(boolean opaque) { 6600 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6601 if (mAttachInfo.mHardwareRenderer != null) { 6602 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6603 } 6604 } 6605 6606 class TakenSurfaceHolder extends BaseSurfaceHolder { 6607 @Override 6608 public boolean onAllowLockCanvas() { 6609 return mDrawingAllowed; 6610 } 6611 6612 @Override 6613 public void onRelayoutContainer() { 6614 // Not currently interesting -- from changing between fixed and layout size. 6615 } 6616 6617 @Override 6618 public void setFormat(int format) { 6619 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6620 } 6621 6622 @Override 6623 public void setType(int type) { 6624 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6625 } 6626 6627 @Override 6628 public void onUpdateSurface() { 6629 // We take care of format and type changes on our own. 6630 throw new IllegalStateException("Shouldn't be here"); 6631 } 6632 6633 @Override 6634 public boolean isCreating() { 6635 return mIsCreating; 6636 } 6637 6638 @Override 6639 public void setFixedSize(int width, int height) { 6640 throw new UnsupportedOperationException( 6641 "Currently only support sizing from layout"); 6642 } 6643 6644 @Override 6645 public void setKeepScreenOn(boolean screenOn) { 6646 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6647 } 6648 } 6649 6650 static class W extends IWindow.Stub { 6651 private final WeakReference<ViewRootImpl> mViewAncestor; 6652 private final IWindowSession mWindowSession; 6653 6654 W(ViewRootImpl viewAncestor) { 6655 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6656 mWindowSession = viewAncestor.mWindowSession; 6657 } 6658 6659 @Override 6660 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6661 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 6662 Configuration newConfig) { 6663 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6664 if (viewAncestor != null) { 6665 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6666 visibleInsets, stableInsets, outsets, reportDraw, newConfig); 6667 } 6668 } 6669 6670 @Override 6671 public void moved(int newX, int newY) { 6672 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6673 if (viewAncestor != null) { 6674 viewAncestor.dispatchMoved(newX, newY); 6675 } 6676 } 6677 6678 @Override 6679 public void dispatchAppVisibility(boolean visible) { 6680 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6681 if (viewAncestor != null) { 6682 viewAncestor.dispatchAppVisibility(visible); 6683 } 6684 } 6685 6686 @Override 6687 public void dispatchGetNewSurface() { 6688 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6689 if (viewAncestor != null) { 6690 viewAncestor.dispatchGetNewSurface(); 6691 } 6692 } 6693 6694 @Override 6695 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6696 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6697 if (viewAncestor != null) { 6698 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6699 } 6700 } 6701 6702 private static int checkCallingPermission(String permission) { 6703 try { 6704 return ActivityManagerNative.getDefault().checkPermission( 6705 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6706 } catch (RemoteException e) { 6707 return PackageManager.PERMISSION_DENIED; 6708 } 6709 } 6710 6711 @Override 6712 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6713 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6714 if (viewAncestor != null) { 6715 final View view = viewAncestor.mView; 6716 if (view != null) { 6717 if (checkCallingPermission(Manifest.permission.DUMP) != 6718 PackageManager.PERMISSION_GRANTED) { 6719 throw new SecurityException("Insufficient permissions to invoke" 6720 + " executeCommand() from pid=" + Binder.getCallingPid() 6721 + ", uid=" + Binder.getCallingUid()); 6722 } 6723 6724 OutputStream clientStream = null; 6725 try { 6726 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6727 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6728 } catch (IOException e) { 6729 e.printStackTrace(); 6730 } finally { 6731 if (clientStream != null) { 6732 try { 6733 clientStream.close(); 6734 } catch (IOException e) { 6735 e.printStackTrace(); 6736 } 6737 } 6738 } 6739 } 6740 } 6741 } 6742 6743 @Override 6744 public void closeSystemDialogs(String reason) { 6745 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6746 if (viewAncestor != null) { 6747 viewAncestor.dispatchCloseSystemDialogs(reason); 6748 } 6749 } 6750 6751 @Override 6752 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6753 boolean sync) { 6754 if (sync) { 6755 try { 6756 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6757 } catch (RemoteException e) { 6758 } 6759 } 6760 } 6761 6762 @Override 6763 public void dispatchWallpaperCommand(String action, int x, int y, 6764 int z, Bundle extras, boolean sync) { 6765 if (sync) { 6766 try { 6767 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6768 } catch (RemoteException e) { 6769 } 6770 } 6771 } 6772 6773 /* Drag/drop */ 6774 @Override 6775 public void dispatchDragEvent(DragEvent event) { 6776 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6777 if (viewAncestor != null) { 6778 viewAncestor.dispatchDragEvent(event); 6779 } 6780 } 6781 6782 @Override 6783 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6784 int localValue, int localChanges) { 6785 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6786 if (viewAncestor != null) { 6787 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6788 localValue, localChanges); 6789 } 6790 } 6791 6792 @Override 6793 public void dispatchWindowShown() { 6794 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6795 if (viewAncestor != null) { 6796 viewAncestor.dispatchWindowShown(); 6797 } 6798 } 6799 } 6800 6801 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6802 public CalledFromWrongThreadException(String msg) { 6803 super(msg); 6804 } 6805 } 6806 6807 static HandlerActionQueue getRunQueue() { 6808 HandlerActionQueue rq = sRunQueues.get(); 6809 if (rq != null) { 6810 return rq; 6811 } 6812 rq = new HandlerActionQueue(); 6813 sRunQueues.set(rq); 6814 return rq; 6815 } 6816 6817 /** 6818 * Start a drag resizing which will inform all listeners that a window resize is taking place. 6819 */ 6820 private void startDragResizing(Rect initialBounds) { 6821 if (!mDragResizing) { 6822 mDragResizing = true; 6823 synchronized (mWindowCallbacks) { 6824 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6825 mWindowCallbacks.get(i).onWindowDragResizeStart(initialBounds); 6826 } 6827 } 6828 mFullRedrawNeeded = true; 6829 } 6830 } 6831 6832 /** 6833 * End a drag resize which will inform all listeners that a window resize has ended. 6834 */ 6835 private void endDragResizing() { 6836 if (mDragResizing) { 6837 mDragResizing = false; 6838 synchronized (mWindowCallbacks) { 6839 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6840 mWindowCallbacks.get(i).onWindowDragResizeEnd(); 6841 } 6842 } 6843 mFullRedrawNeeded = true; 6844 } 6845 } 6846 6847 private boolean updateContentDrawBounds() { 6848 boolean updated = false; 6849 synchronized (mWindowCallbacks) { 6850 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6851 updated |= mWindowCallbacks.get(i).onContentDrawn( 6852 mWindowAttributes.surfaceInsets.left, 6853 mWindowAttributes.surfaceInsets.top, 6854 mWidth, mHeight); 6855 } 6856 } 6857 return updated | (mDragResizing && mReportNextDraw); 6858 } 6859 6860 private void requestDrawWindow() { 6861 if (mReportNextDraw) { 6862 mWindowDrawCountDown = new CountDownLatch(mWindowCallbacks.size()); 6863 } 6864 synchronized (mWindowCallbacks) { 6865 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6866 mWindowCallbacks.get(i).onRequestDraw(mReportNextDraw); 6867 } 6868 } 6869 } 6870 6871 /** 6872 * Class for managing the accessibility interaction connection 6873 * based on the global accessibility state. 6874 */ 6875 final class AccessibilityInteractionConnectionManager 6876 implements AccessibilityStateChangeListener { 6877 @Override 6878 public void onAccessibilityStateChanged(boolean enabled) { 6879 if (enabled) { 6880 ensureConnection(); 6881 if (mAttachInfo.mHasWindowFocus) { 6882 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6883 View focusedView = mView.findFocus(); 6884 if (focusedView != null && focusedView != mView) { 6885 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6886 } 6887 } 6888 } else { 6889 ensureNoConnection(); 6890 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6891 } 6892 } 6893 6894 public void ensureConnection() { 6895 final boolean registered = 6896 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6897 if (!registered) { 6898 mAttachInfo.mAccessibilityWindowId = 6899 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6900 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6901 } 6902 } 6903 6904 public void ensureNoConnection() { 6905 final boolean registered = 6906 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6907 if (registered) { 6908 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6909 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6910 } 6911 } 6912 } 6913 6914 final class HighContrastTextManager implements HighTextContrastChangeListener { 6915 HighContrastTextManager() { 6916 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6917 } 6918 @Override 6919 public void onHighTextContrastStateChanged(boolean enabled) { 6920 mAttachInfo.mHighContrastText = enabled; 6921 6922 // Destroy Displaylists so they can be recreated with high contrast recordings 6923 destroyHardwareResources(); 6924 6925 // Schedule redraw, which will rerecord + redraw all text 6926 invalidate(); 6927 } 6928 } 6929 6930 /** 6931 * This class is an interface this ViewAncestor provides to the 6932 * AccessibilityManagerService to the latter can interact with 6933 * the view hierarchy in this ViewAncestor. 6934 */ 6935 static final class AccessibilityInteractionConnection 6936 extends IAccessibilityInteractionConnection.Stub { 6937 private final WeakReference<ViewRootImpl> mViewRootImpl; 6938 6939 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6940 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6941 } 6942 6943 @Override 6944 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6945 Region interactiveRegion, int interactionId, 6946 IAccessibilityInteractionConnectionCallback callback, int flags, 6947 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6948 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6949 if (viewRootImpl != null && viewRootImpl.mView != null) { 6950 viewRootImpl.getAccessibilityInteractionController() 6951 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6952 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6953 interrogatingTid, spec); 6954 } else { 6955 // We cannot make the call and notify the caller so it does not wait. 6956 try { 6957 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6958 } catch (RemoteException re) { 6959 /* best effort - ignore */ 6960 } 6961 } 6962 } 6963 6964 @Override 6965 public void performAccessibilityAction(long accessibilityNodeId, int action, 6966 Bundle arguments, int interactionId, 6967 IAccessibilityInteractionConnectionCallback callback, int flags, 6968 int interrogatingPid, long interrogatingTid) { 6969 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6970 if (viewRootImpl != null && viewRootImpl.mView != null) { 6971 viewRootImpl.getAccessibilityInteractionController() 6972 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6973 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6974 } else { 6975 // We cannot make the call and notify the caller so it does not wait. 6976 try { 6977 callback.setPerformAccessibilityActionResult(false, interactionId); 6978 } catch (RemoteException re) { 6979 /* best effort - ignore */ 6980 } 6981 } 6982 } 6983 6984 @Override 6985 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6986 String viewId, Region interactiveRegion, int interactionId, 6987 IAccessibilityInteractionConnectionCallback callback, int flags, 6988 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6989 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6990 if (viewRootImpl != null && viewRootImpl.mView != null) { 6991 viewRootImpl.getAccessibilityInteractionController() 6992 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6993 viewId, interactiveRegion, interactionId, callback, flags, 6994 interrogatingPid, interrogatingTid, spec); 6995 } else { 6996 // We cannot make the call and notify the caller so it does not wait. 6997 try { 6998 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6999 } catch (RemoteException re) { 7000 /* best effort - ignore */ 7001 } 7002 } 7003 } 7004 7005 @Override 7006 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 7007 Region interactiveRegion, int interactionId, 7008 IAccessibilityInteractionConnectionCallback callback, int flags, 7009 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7010 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7011 if (viewRootImpl != null && viewRootImpl.mView != null) { 7012 viewRootImpl.getAccessibilityInteractionController() 7013 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 7014 interactiveRegion, interactionId, callback, flags, interrogatingPid, 7015 interrogatingTid, spec); 7016 } else { 7017 // We cannot make the call and notify the caller so it does not wait. 7018 try { 7019 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 7020 } catch (RemoteException re) { 7021 /* best effort - ignore */ 7022 } 7023 } 7024 } 7025 7026 @Override 7027 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 7028 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7029 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7030 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7031 if (viewRootImpl != null && viewRootImpl.mView != null) { 7032 viewRootImpl.getAccessibilityInteractionController() 7033 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 7034 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7035 spec); 7036 } else { 7037 // We cannot make the call and notify the caller so it does not wait. 7038 try { 7039 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7040 } catch (RemoteException re) { 7041 /* best effort - ignore */ 7042 } 7043 } 7044 } 7045 7046 @Override 7047 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 7048 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7049 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7050 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7051 if (viewRootImpl != null && viewRootImpl.mView != null) { 7052 viewRootImpl.getAccessibilityInteractionController() 7053 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 7054 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7055 spec); 7056 } else { 7057 // We cannot make the call and notify the caller so it does not wait. 7058 try { 7059 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7060 } catch (RemoteException re) { 7061 /* best effort - ignore */ 7062 } 7063 } 7064 } 7065 } 7066 7067 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 7068 private int mChangeTypes = 0; 7069 7070 public View mSource; 7071 public long mLastEventTimeMillis; 7072 7073 @Override 7074 public void run() { 7075 // The accessibility may be turned off while we were waiting so check again. 7076 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7077 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7078 AccessibilityEvent event = AccessibilityEvent.obtain(); 7079 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7080 event.setContentChangeTypes(mChangeTypes); 7081 mSource.sendAccessibilityEventUnchecked(event); 7082 } else { 7083 mLastEventTimeMillis = 0; 7084 } 7085 // In any case reset to initial state. 7086 mSource.resetSubtreeAccessibilityStateChanged(); 7087 mSource = null; 7088 mChangeTypes = 0; 7089 } 7090 7091 public void runOrPost(View source, int changeType) { 7092 if (mSource != null) { 7093 // If there is no common predecessor, then mSource points to 7094 // a removed view, hence in this case always prefer the source. 7095 View predecessor = getCommonPredecessor(mSource, source); 7096 mSource = (predecessor != null) ? predecessor : source; 7097 mChangeTypes |= changeType; 7098 return; 7099 } 7100 mSource = source; 7101 mChangeTypes = changeType; 7102 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7103 final long minEventIntevalMillis = 7104 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7105 if (timeSinceLastMillis >= minEventIntevalMillis) { 7106 mSource.removeCallbacks(this); 7107 run(); 7108 } else { 7109 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7110 } 7111 } 7112 } 7113} 7114