ViewRootImpl.java revision d4eaef7f4c5a5d281de4fff272cd33e892e26264
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 static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY; 20 21import android.Manifest; 22import android.animation.LayoutTransition; 23import android.app.ActivityManagerNative; 24import android.content.ClipDescription; 25import android.content.ComponentCallbacks; 26import android.content.Context; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Matrix; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.hardware.display.DisplayManager; 41import android.hardware.display.DisplayManager.DisplayListener; 42import android.media.AudioManager; 43import android.os.Binder; 44import android.os.Build; 45import android.os.Bundle; 46import android.os.Debug; 47import android.os.Handler; 48import android.os.Looper; 49import android.os.Message; 50import android.os.ParcelFileDescriptor; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemClock; 54import android.os.SystemProperties; 55import android.os.Trace; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.Log; 59import android.util.Slog; 60import android.util.TimeUtils; 61import android.util.TypedValue; 62import android.view.Surface.OutOfResourcesException; 63import android.view.View.AttachInfo; 64import android.view.View.MeasureSpec; 65import android.view.accessibility.AccessibilityEvent; 66import android.view.accessibility.AccessibilityManager; 67import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 68import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 69import android.view.accessibility.AccessibilityNodeInfo; 70import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; 71import android.view.accessibility.AccessibilityNodeProvider; 72import android.view.accessibility.IAccessibilityInteractionConnection; 73import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 74import android.view.animation.AccelerateDecelerateInterpolator; 75import android.view.animation.Interpolator; 76import android.view.inputmethod.InputConnection; 77import android.view.inputmethod.InputMethodManager; 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, ThreadedRenderer.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 // For recents to freeform transition we need to keep drawing after the app receives information 180 // that it became invisible. This will ignore that information and depend on the decor view 181 // visibility to control drawing. The decor view visibility will get adjusted when the app get 182 // stopped and that's when the app will stop drawing further frames. 183 private boolean mForceDecorViewVisibility = false; 184 int mOrigWindowType = -1; 185 186 /** Whether the window had focus during the most recent traversal. */ 187 boolean mHadWindowFocus; 188 189 /** 190 * Whether the window lost focus during a previous traversal and has not 191 * yet gained it back. Used to determine whether a WINDOW_STATE_CHANGE 192 * accessibility events should be sent during traversal. 193 */ 194 boolean mLostWindowFocus; 195 196 // Set to true if the owner of this window is in the stopped state, 197 // so the window should no longer be active. 198 boolean mStopped = false; 199 200 // Set to true to stop input during an Activity Transition. 201 boolean mPausedForTransition = false; 202 203 boolean mLastInCompatMode = false; 204 205 SurfaceHolder.Callback2 mSurfaceHolderCallback; 206 BaseSurfaceHolder mSurfaceHolder; 207 boolean mIsCreating; 208 boolean mDrawingAllowed; 209 210 final Region mTransparentRegion; 211 final Region mPreviousTransparentRegion; 212 213 int mWidth; 214 int mHeight; 215 Rect mDirty; 216 boolean mIsAnimating; 217 218 private boolean mDragResizing; 219 private int mCanvasOffsetX; 220 private int mCanvasOffsetY; 221 222 CompatibilityInfo.Translator mTranslator; 223 224 final View.AttachInfo mAttachInfo; 225 InputChannel mInputChannel; 226 InputQueue.Callback mInputQueueCallback; 227 InputQueue mInputQueue; 228 FallbackEventHandler mFallbackEventHandler; 229 Choreographer mChoreographer; 230 231 final Rect mTempRect; // used in the transaction to not thrash the heap. 232 final Rect mVisRect; // used to retrieve visible rect of focused view. 233 234 boolean mTraversalScheduled; 235 int mTraversalBarrier; 236 boolean mWillDrawSoon; 237 /** Set to true while in performTraversals for detecting when die(true) is called from internal 238 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 239 boolean mIsInTraversal; 240 boolean mApplyInsetsRequested; 241 boolean mLayoutRequested; 242 boolean mFirst; 243 boolean mReportNextDraw; 244 boolean mFullRedrawNeeded; 245 boolean mNewSurfaceNeeded; 246 boolean mHasHadWindowFocus; 247 boolean mLastWasImTarget; 248 CountDownLatch mWindowDrawCountDown; 249 250 boolean mIsDrawing; 251 int mLastSystemUiVisibility; 252 int mClientWindowLayoutFlags; 253 boolean mLastOverscanRequested; 254 255 // Pool of queued input events. 256 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 257 private QueuedInputEvent mQueuedInputEventPool; 258 private int mQueuedInputEventPoolSize; 259 260 /* Input event queue. 261 * Pending input events are input events waiting to be delivered to the input stages 262 * and handled by the application. 263 */ 264 QueuedInputEvent mPendingInputEventHead; 265 QueuedInputEvent mPendingInputEventTail; 266 int mPendingInputEventCount; 267 boolean mProcessInputEventsScheduled; 268 boolean mUnbufferedInputDispatch; 269 String mPendingInputEventQueueLengthCounterName = "pq"; 270 271 InputStage mFirstInputStage; 272 InputStage mFirstPostImeInputStage; 273 InputStage mSyntheticInputStage; 274 275 boolean mWindowAttributesChanged = false; 276 int mWindowAttributesChangesFlag = 0; 277 278 // These can be accessed by any thread, must be protected with a lock. 279 // Surface can never be reassigned or cleared (use Surface.clear()). 280 final Surface mSurface = new Surface(); 281 282 boolean mAdded; 283 boolean mAddedTouchMode; 284 285 final DisplayAdjustments mDisplayAdjustments; 286 287 // These are accessed by multiple threads. 288 final Rect mWinFrame; // frame given by window manager. 289 290 final Rect mPendingOverscanInsets = new Rect(); 291 final Rect mPendingVisibleInsets = new Rect(); 292 final Rect mPendingStableInsets = new Rect(); 293 final Rect mPendingContentInsets = new Rect(); 294 final Rect mPendingOutsets = new Rect(); 295 final Rect mPendingBackDropFrame = new Rect(); 296 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 297 = new ViewTreeObserver.InternalInsetsInfo(); 298 299 final Rect mDispatchContentInsets = new Rect(); 300 final Rect mDispatchStableInsets = new Rect(); 301 302 private WindowInsets mLastWindowInsets; 303 304 final Configuration mLastConfiguration = new Configuration(); 305 final Configuration mPendingConfiguration = new Configuration(); 306 307 boolean mScrollMayChange; 308 int mSoftInputMode; 309 WeakReference<View> mLastScrolledFocus; 310 int mScrollY; 311 int mCurScrollY; 312 Scroller mScroller; 313 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 314 private ArrayList<LayoutTransition> mPendingTransitions; 315 316 final ViewConfiguration mViewConfiguration; 317 318 /* Drag/drop */ 319 ClipDescription mDragDescription; 320 View mCurrentDragView; 321 volatile Object mLocalDragState; 322 final PointF mDragPoint = new PointF(); 323 final PointF mLastTouchPoint = new PointF(); 324 325 private boolean mProfileRendering; 326 private Choreographer.FrameCallback mRenderProfiler; 327 private boolean mRenderProfilingEnabled; 328 329 // Variables to track frames per second, enabled via DEBUG_FPS flag 330 private long mFpsStartTime = -1; 331 private long mFpsPrevTime = -1; 332 private int mFpsNumFrames; 333 334 private int mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 335 private PointerIcon mCustomPointerIcon = null; 336 337 /** 338 * see {@link #playSoundEffect(int)} 339 */ 340 AudioManager mAudioManager; 341 342 final AccessibilityManager mAccessibilityManager; 343 344 AccessibilityInteractionController mAccessibilityInteractionController; 345 346 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 347 HighContrastTextManager mHighContrastTextManager; 348 349 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 350 351 HashSet<View> mTempHashSet; 352 353 private final int mDensity; 354 private final int mNoncompatDensity; 355 356 private boolean mInLayout = false; 357 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 358 boolean mHandlingLayoutInLayoutRequest = false; 359 360 private int mViewLayoutDirectionInitial; 361 362 /** Set to true once doDie() has been called. */ 363 private boolean mRemoved; 364 365 /** 366 * Consistency verifier for debugging purposes. 367 */ 368 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 369 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 370 new InputEventConsistencyVerifier(this, 0) : null; 371 372 static final class SystemUiVisibilityInfo { 373 int seq; 374 int globalVisibility; 375 int localValue; 376 int localChanges; 377 } 378 379 public ViewRootImpl(Context context, Display display) { 380 mContext = context; 381 mWindowSession = WindowManagerGlobal.getWindowSession(); 382 mDisplay = display; 383 mBasePackageName = context.getBasePackageName(); 384 385 mDisplayAdjustments = display.getDisplayAdjustments(); 386 387 mThread = Thread.currentThread(); 388 mLocation = new WindowLeaked(null); 389 mLocation.fillInStackTrace(); 390 mWidth = -1; 391 mHeight = -1; 392 mDirty = new Rect(); 393 mTempRect = new Rect(); 394 mVisRect = new Rect(); 395 mWinFrame = new Rect(); 396 mWindow = new W(this); 397 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 398 mViewVisibility = View.GONE; 399 mTransparentRegion = new Region(); 400 mPreviousTransparentRegion = new Region(); 401 mFirst = true; // true for the first time the view is added 402 mAdded = false; 403 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 404 mAccessibilityManager = AccessibilityManager.getInstance(context); 405 mAccessibilityInteractionConnectionManager = 406 new AccessibilityInteractionConnectionManager(); 407 mAccessibilityManager.addAccessibilityStateChangeListener( 408 mAccessibilityInteractionConnectionManager); 409 mHighContrastTextManager = new HighContrastTextManager(); 410 mAccessibilityManager.addHighTextContrastStateChangeListener( 411 mHighContrastTextManager); 412 mViewConfiguration = ViewConfiguration.get(context); 413 mDensity = context.getResources().getDisplayMetrics().densityDpi; 414 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 415 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 416 mChoreographer = Choreographer.getInstance(); 417 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 418 loadSystemProperties(); 419 } 420 421 public static void addFirstDrawHandler(Runnable callback) { 422 synchronized (sFirstDrawHandlers) { 423 if (!sFirstDrawComplete) { 424 sFirstDrawHandlers.add(callback); 425 } 426 } 427 } 428 429 public static void addConfigCallback(ComponentCallbacks callback) { 430 synchronized (sConfigCallbacks) { 431 sConfigCallbacks.add(callback); 432 } 433 } 434 435 public void addWindowCallbacks(WindowCallbacks callback) { 436 if (USE_MT_RENDERER) { 437 synchronized (mWindowCallbacks) { 438 mWindowCallbacks.add(callback); 439 } 440 } 441 } 442 443 public void removeWindowCallbacks(WindowCallbacks callback) { 444 if (USE_MT_RENDERER) { 445 synchronized (mWindowCallbacks) { 446 mWindowCallbacks.remove(callback); 447 } 448 } 449 } 450 451 public void reportDrawFinish() { 452 if (mWindowDrawCountDown != null) { 453 mWindowDrawCountDown.countDown(); 454 } 455 } 456 457 // FIXME for perf testing only 458 private boolean mProfile = false; 459 460 /** 461 * Call this to profile the next traversal call. 462 * FIXME for perf testing only. Remove eventually 463 */ 464 public void profile() { 465 mProfile = true; 466 } 467 468 /** 469 * Indicates whether we are in touch mode. Calling this method triggers an IPC 470 * call and should be avoided whenever possible. 471 * 472 * @return True, if the device is in touch mode, false otherwise. 473 * 474 * @hide 475 */ 476 static boolean isInTouchMode() { 477 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 478 if (windowSession != null) { 479 try { 480 return windowSession.getInTouchMode(); 481 } catch (RemoteException e) { 482 } 483 } 484 return false; 485 } 486 487 /** 488 * We have one child 489 */ 490 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 491 synchronized (this) { 492 if (mView == null) { 493 mView = view; 494 495 mAttachInfo.mDisplayState = mDisplay.getState(); 496 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 497 498 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 499 mFallbackEventHandler.setView(view); 500 mWindowAttributes.copyFrom(attrs); 501 if (mWindowAttributes.packageName == null) { 502 mWindowAttributes.packageName = mBasePackageName; 503 } 504 attrs = mWindowAttributes; 505 // Keep track of the actual window flags supplied by the client. 506 mClientWindowLayoutFlags = attrs.flags; 507 508 setAccessibilityFocus(null, null); 509 510 if (view instanceof RootViewSurfaceTaker) { 511 mSurfaceHolderCallback = 512 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 513 if (mSurfaceHolderCallback != null) { 514 mSurfaceHolder = new TakenSurfaceHolder(); 515 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 516 } 517 } 518 519 // Compute surface insets required to draw at specified Z value. 520 // TODO: Use real shadow insets for a constant max Z. 521 if (!attrs.hasManualSurfaceInsets) { 522 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 523 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 524 } 525 526 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 527 mTranslator = compatibilityInfo.getTranslator(); 528 529 // If the application owns the surface, don't enable hardware acceleration 530 if (mSurfaceHolder == null) { 531 enableHardwareAcceleration(attrs); 532 } 533 534 boolean restore = false; 535 if (mTranslator != null) { 536 mSurface.setCompatibilityTranslator(mTranslator); 537 restore = true; 538 attrs.backup(); 539 mTranslator.translateWindowLayout(attrs); 540 } 541 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 542 543 if (!compatibilityInfo.supportsScreen()) { 544 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 545 mLastInCompatMode = true; 546 } 547 548 mSoftInputMode = attrs.softInputMode; 549 mWindowAttributesChanged = true; 550 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 551 mAttachInfo.mRootView = view; 552 mAttachInfo.mScalingRequired = mTranslator != null; 553 mAttachInfo.mApplicationScale = 554 mTranslator == null ? 1.0f : mTranslator.applicationScale; 555 if (panelParentView != null) { 556 mAttachInfo.mPanelParentWindowToken 557 = panelParentView.getApplicationWindowToken(); 558 } 559 mAdded = true; 560 int res; /* = WindowManagerImpl.ADD_OKAY; */ 561 562 // Schedule the first layout -before- adding to the window 563 // manager, to make sure we do the relayout before receiving 564 // any other events from the system. 565 requestLayout(); 566 if ((mWindowAttributes.inputFeatures 567 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 568 mInputChannel = new InputChannel(); 569 } 570 mForceDecorViewVisibility = (mWindowAttributes.privateFlags 571 & PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY) != 0; 572 try { 573 mOrigWindowType = mWindowAttributes.type; 574 mAttachInfo.mRecomputeGlobalAttributes = true; 575 collectViewAttributes(); 576 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 577 getHostVisibility(), mDisplay.getDisplayId(), 578 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, 579 mAttachInfo.mOutsets, mInputChannel); 580 } catch (RemoteException e) { 581 mAdded = false; 582 mView = null; 583 mAttachInfo.mRootView = null; 584 mInputChannel = null; 585 mFallbackEventHandler.setView(null); 586 unscheduleTraversals(); 587 setAccessibilityFocus(null, null); 588 throw new RuntimeException("Adding window failed", e); 589 } finally { 590 if (restore) { 591 attrs.restore(); 592 } 593 } 594 595 if (mTranslator != null) { 596 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 597 } 598 mPendingOverscanInsets.set(0, 0, 0, 0); 599 mPendingContentInsets.set(mAttachInfo.mContentInsets); 600 mPendingStableInsets.set(mAttachInfo.mStableInsets); 601 mPendingVisibleInsets.set(0, 0, 0, 0); 602 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 603 if (res < WindowManagerGlobal.ADD_OKAY) { 604 mAttachInfo.mRootView = null; 605 mAdded = false; 606 mFallbackEventHandler.setView(null); 607 unscheduleTraversals(); 608 setAccessibilityFocus(null, null); 609 switch (res) { 610 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 611 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 612 throw new WindowManager.BadTokenException( 613 "Unable to add window -- token " + attrs.token 614 + " is not valid; is your activity running?"); 615 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 616 throw new WindowManager.BadTokenException( 617 "Unable to add window -- token " + attrs.token 618 + " is not for an application"); 619 case WindowManagerGlobal.ADD_APP_EXITING: 620 throw new WindowManager.BadTokenException( 621 "Unable to add window -- app for token " + attrs.token 622 + " is exiting"); 623 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 624 throw new WindowManager.BadTokenException( 625 "Unable to add window -- window " + mWindow 626 + " has already been added"); 627 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 628 // Silently ignore -- we would have just removed it 629 // right away, anyway. 630 return; 631 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 632 throw new WindowManager.BadTokenException("Unable to add window " 633 + mWindow + " -- another window of type " 634 + mWindowAttributes.type + " already exists"); 635 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 636 throw new WindowManager.BadTokenException("Unable to add window " 637 + mWindow + " -- permission denied for window type " 638 + mWindowAttributes.type); 639 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 640 throw new WindowManager.InvalidDisplayException("Unable to add window " 641 + mWindow + " -- the specified display can not be found"); 642 case WindowManagerGlobal.ADD_INVALID_TYPE: 643 throw new WindowManager.InvalidDisplayException("Unable to add window " 644 + mWindow + " -- the specified window type " 645 + mWindowAttributes.type + " is not valid"); 646 } 647 throw new RuntimeException( 648 "Unable to add window -- unknown error code " + res); 649 } 650 651 if (view instanceof RootViewSurfaceTaker) { 652 mInputQueueCallback = 653 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 654 } 655 if (mInputChannel != null) { 656 if (mInputQueueCallback != null) { 657 mInputQueue = new InputQueue(); 658 mInputQueueCallback.onInputQueueCreated(mInputQueue); 659 } 660 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 661 Looper.myLooper()); 662 } 663 664 view.assignParent(this); 665 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 666 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 667 668 if (mAccessibilityManager.isEnabled()) { 669 mAccessibilityInteractionConnectionManager.ensureConnection(); 670 } 671 672 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 673 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 674 } 675 676 // Set up the input pipeline. 677 CharSequence counterSuffix = attrs.getTitle(); 678 mSyntheticInputStage = new SyntheticInputStage(); 679 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 680 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 681 "aq:native-post-ime:" + counterSuffix); 682 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 683 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 684 "aq:ime:" + counterSuffix); 685 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 686 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 687 "aq:native-pre-ime:" + counterSuffix); 688 689 mFirstInputStage = nativePreImeStage; 690 mFirstPostImeInputStage = earlyPostImeStage; 691 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 692 } 693 } 694 } 695 696 /** Whether the window is in local focus mode or not */ 697 private boolean isInLocalFocusMode() { 698 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 699 } 700 701 public int getWindowFlags() { 702 return mWindowAttributes.flags; 703 } 704 705 public int getDisplayId() { 706 return mDisplay.getDisplayId(); 707 } 708 709 public CharSequence getTitle() { 710 return mWindowAttributes.getTitle(); 711 } 712 713 void destroyHardwareResources() { 714 if (mAttachInfo.mHardwareRenderer != null) { 715 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 716 mAttachInfo.mHardwareRenderer.destroy(); 717 } 718 } 719 720 public void detachFunctor(long functor) { 721 if (mAttachInfo.mHardwareRenderer != null) { 722 // Fence so that any pending invokeFunctor() messages will be processed 723 // before we return from detachFunctor. 724 mAttachInfo.mHardwareRenderer.stopDrawing(); 725 } 726 } 727 728 /** 729 * Schedules the functor for execution in either kModeProcess or 730 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 731 * 732 * @param functor The native functor to invoke 733 * @param waitForCompletion If true, this will not return until the functor 734 * has invoked. If false, the functor may be invoked 735 * asynchronously. 736 */ 737 public void invokeFunctor(long functor, boolean waitForCompletion) { 738 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 739 } 740 741 public void registerAnimatingRenderNode(RenderNode animator) { 742 if (mAttachInfo.mHardwareRenderer != null) { 743 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 744 } else { 745 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 746 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 747 } 748 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 749 } 750 } 751 752 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 753 mAttachInfo.mHardwareAccelerated = false; 754 mAttachInfo.mHardwareAccelerationRequested = false; 755 756 // Don't enable hardware acceleration when the application is in compatibility mode 757 if (mTranslator != null) return; 758 759 // Try to enable hardware acceleration if requested 760 final boolean hardwareAccelerated = 761 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 762 763 if (hardwareAccelerated) { 764 if (!ThreadedRenderer.isAvailable()) { 765 return; 766 } 767 768 // Persistent processes (including the system) should not do 769 // accelerated rendering on low-end devices. In that case, 770 // sRendererDisabled will be set. In addition, the system process 771 // itself should never do accelerated rendering. In that case, both 772 // sRendererDisabled and sSystemRendererDisabled are set. When 773 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 774 // can be used by code on the system process to escape that and enable 775 // HW accelerated drawing. (This is basically for the lock screen.) 776 777 final boolean fakeHwAccelerated = (attrs.privateFlags & 778 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 779 final boolean forceHwAccelerated = (attrs.privateFlags & 780 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 781 782 if (fakeHwAccelerated) { 783 // This is exclusively for the preview windows the window manager 784 // shows for launching applications, so they will look more like 785 // the app being launched. 786 mAttachInfo.mHardwareAccelerationRequested = true; 787 } else if (!ThreadedRenderer.sRendererDisabled 788 || (ThreadedRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 789 if (mAttachInfo.mHardwareRenderer != null) { 790 mAttachInfo.mHardwareRenderer.destroy(); 791 } 792 793 final Rect insets = attrs.surfaceInsets; 794 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 795 || insets.top != 0 || insets.bottom != 0; 796 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 797 mAttachInfo.mHardwareRenderer = ThreadedRenderer.create(mContext, translucent); 798 if (mAttachInfo.mHardwareRenderer != null) { 799 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 800 mAttachInfo.mHardwareAccelerated = 801 mAttachInfo.mHardwareAccelerationRequested = true; 802 } 803 } 804 } 805 } 806 807 public View getView() { 808 return mView; 809 } 810 811 final WindowLeaked getLocation() { 812 return mLocation; 813 } 814 815 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 816 synchronized (this) { 817 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 818 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 819 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 820 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 821 final int oldSoftInputMode = mWindowAttributes.softInputMode; 822 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 823 824 // Keep track of the actual window flags supplied by the client. 825 mClientWindowLayoutFlags = attrs.flags; 826 827 // Preserve compatible window flag if exists. 828 final int compatibleWindowFlag = mWindowAttributes.privateFlags 829 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 830 831 // Transfer over system UI visibility values as they carry current state. 832 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 833 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 834 835 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 836 if ((mWindowAttributesChangesFlag 837 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 838 // Recompute system ui visibility. 839 mAttachInfo.mRecomputeGlobalAttributes = true; 840 } 841 if (mWindowAttributes.packageName == null) { 842 mWindowAttributes.packageName = mBasePackageName; 843 } 844 mWindowAttributes.privateFlags |= compatibleWindowFlag; 845 846 // Restore old surface insets. 847 mWindowAttributes.surfaceInsets.set( 848 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 849 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 850 851 applyKeepScreenOnFlag(mWindowAttributes); 852 853 if (newView) { 854 mSoftInputMode = attrs.softInputMode; 855 requestLayout(); 856 } 857 858 // Don't lose the mode we last auto-computed. 859 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 860 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 861 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 862 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 863 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 864 } 865 866 mWindowAttributesChanged = true; 867 scheduleTraversals(); 868 } 869 } 870 871 void handleAppVisibility(boolean visible) { 872 if (mAppVisible != visible) { 873 mAppVisible = visible; 874 scheduleTraversals(); 875 if (!mAppVisible) { 876 WindowManagerGlobal.trimForeground(); 877 } 878 } 879 } 880 881 void handleGetNewSurface() { 882 mNewSurfaceNeeded = true; 883 mFullRedrawNeeded = true; 884 scheduleTraversals(); 885 } 886 887 private final DisplayListener mDisplayListener = new DisplayListener() { 888 @Override 889 public void onDisplayChanged(int displayId) { 890 if (mView != null && mDisplay.getDisplayId() == displayId) { 891 final int oldDisplayState = mAttachInfo.mDisplayState; 892 final int newDisplayState = mDisplay.getState(); 893 if (oldDisplayState != newDisplayState) { 894 mAttachInfo.mDisplayState = newDisplayState; 895 pokeDrawLockIfNeeded(); 896 if (oldDisplayState != Display.STATE_UNKNOWN) { 897 final int oldScreenState = toViewScreenState(oldDisplayState); 898 final int newScreenState = toViewScreenState(newDisplayState); 899 if (oldScreenState != newScreenState) { 900 mView.dispatchScreenStateChanged(newScreenState); 901 } 902 if (oldDisplayState == Display.STATE_OFF) { 903 // Draw was suppressed so we need to for it to happen here. 904 mFullRedrawNeeded = true; 905 scheduleTraversals(); 906 } 907 } 908 } 909 } 910 } 911 912 @Override 913 public void onDisplayRemoved(int displayId) { 914 } 915 916 @Override 917 public void onDisplayAdded(int displayId) { 918 } 919 920 private int toViewScreenState(int displayState) { 921 return displayState == Display.STATE_OFF ? 922 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 923 } 924 }; 925 926 void pokeDrawLockIfNeeded() { 927 final int displayState = mAttachInfo.mDisplayState; 928 if (mView != null && mAdded && mTraversalScheduled 929 && (displayState == Display.STATE_DOZE 930 || displayState == Display.STATE_DOZE_SUSPEND)) { 931 try { 932 mWindowSession.pokeDrawLock(mWindow); 933 } catch (RemoteException ex) { 934 // System server died, oh well. 935 } 936 } 937 } 938 939 @Override 940 public void requestFitSystemWindows() { 941 checkThread(); 942 mApplyInsetsRequested = true; 943 scheduleTraversals(); 944 } 945 946 @Override 947 public void requestLayout() { 948 if (!mHandlingLayoutInLayoutRequest) { 949 checkThread(); 950 mLayoutRequested = true; 951 scheduleTraversals(); 952 } 953 } 954 955 @Override 956 public boolean isLayoutRequested() { 957 return mLayoutRequested; 958 } 959 960 void invalidate() { 961 mDirty.set(0, 0, mWidth, mHeight); 962 if (!mWillDrawSoon) { 963 scheduleTraversals(); 964 } 965 } 966 967 void invalidateWorld(View view) { 968 view.invalidate(); 969 if (view instanceof ViewGroup) { 970 ViewGroup parent = (ViewGroup) view; 971 for (int i = 0; i < parent.getChildCount(); i++) { 972 invalidateWorld(parent.getChildAt(i)); 973 } 974 } 975 } 976 977 @Override 978 public void invalidateChild(View child, Rect dirty) { 979 invalidateChildInParent(null, dirty); 980 } 981 982 @Override 983 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 984 checkThread(); 985 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 986 987 if (dirty == null) { 988 invalidate(); 989 return null; 990 } else if (dirty.isEmpty() && !mIsAnimating) { 991 return null; 992 } 993 994 if (mCurScrollY != 0 || mTranslator != null) { 995 mTempRect.set(dirty); 996 dirty = mTempRect; 997 if (mCurScrollY != 0) { 998 dirty.offset(0, -mCurScrollY); 999 } 1000 if (mTranslator != null) { 1001 mTranslator.translateRectInAppWindowToScreen(dirty); 1002 } 1003 if (mAttachInfo.mScalingRequired) { 1004 dirty.inset(-1, -1); 1005 } 1006 } 1007 1008 invalidateRectOnScreen(dirty); 1009 1010 return null; 1011 } 1012 1013 private void invalidateRectOnScreen(Rect dirty) { 1014 final Rect localDirty = mDirty; 1015 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 1016 mAttachInfo.mSetIgnoreDirtyState = true; 1017 mAttachInfo.mIgnoreDirtyState = true; 1018 } 1019 1020 // Add the new dirty rect to the current one 1021 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 1022 // Intersect with the bounds of the window to skip 1023 // updates that lie outside of the visible region 1024 final float appScale = mAttachInfo.mApplicationScale; 1025 final boolean intersected = localDirty.intersect(0, 0, 1026 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1027 if (!intersected) { 1028 localDirty.setEmpty(); 1029 } 1030 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 1031 scheduleTraversals(); 1032 } 1033 } 1034 1035 void setWindowStopped(boolean stopped) { 1036 if (mStopped != stopped) { 1037 mStopped = stopped; 1038 if (!mStopped) { 1039 scheduleTraversals(); 1040 } 1041 } 1042 } 1043 1044 /** 1045 * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed 1046 * through to allow quick reversal of the Activity Transition. 1047 * 1048 * @param paused true to pause, false to resume. 1049 */ 1050 public void setPausedForTransition(boolean paused) { 1051 mPausedForTransition = paused; 1052 } 1053 1054 @Override 1055 public ViewParent getParent() { 1056 return null; 1057 } 1058 1059 @Override 1060 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1061 if (child != mView) { 1062 throw new RuntimeException("child is not mine, honest!"); 1063 } 1064 // Note: don't apply scroll offset, because we want to know its 1065 // visibility in the virtual canvas being given to the view hierarchy. 1066 return r.intersect(0, 0, mWidth, mHeight); 1067 } 1068 1069 @Override 1070 public void bringChildToFront(View child) { 1071 } 1072 1073 int getHostVisibility() { 1074 return (mAppVisible || mForceDecorViewVisibility) ? mView.getVisibility() : View.GONE; 1075 } 1076 1077 /** 1078 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1079 * This list will be cleared after the transitions on the list are start()'ed. These 1080 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1081 * happens during the layout phase of traversal, which we want to complete before any of the 1082 * animations are started (because those animations may side-effect properties that layout 1083 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1084 * to the list and it is started just prior to starting the drawing phase of traversal. 1085 * 1086 * @param transition The LayoutTransition to be started on the next traversal. 1087 * 1088 * @hide 1089 */ 1090 public void requestTransitionStart(LayoutTransition transition) { 1091 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1092 if (mPendingTransitions == null) { 1093 mPendingTransitions = new ArrayList<LayoutTransition>(); 1094 } 1095 mPendingTransitions.add(transition); 1096 } 1097 } 1098 1099 /** 1100 * Notifies the HardwareRenderer that a new frame will be coming soon. 1101 * Currently only {@link ThreadedRenderer} cares about this, and uses 1102 * this knowledge to adjust the scheduling of off-thread animations 1103 */ 1104 void notifyRendererOfFramePending() { 1105 if (mAttachInfo.mHardwareRenderer != null) { 1106 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1107 } 1108 } 1109 1110 void scheduleTraversals() { 1111 if (!mTraversalScheduled) { 1112 mTraversalScheduled = true; 1113 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1114 mChoreographer.postCallback( 1115 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1116 if (!mUnbufferedInputDispatch) { 1117 scheduleConsumeBatchedInput(); 1118 } 1119 notifyRendererOfFramePending(); 1120 pokeDrawLockIfNeeded(); 1121 } 1122 } 1123 1124 void unscheduleTraversals() { 1125 if (mTraversalScheduled) { 1126 mTraversalScheduled = false; 1127 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1128 mChoreographer.removeCallbacks( 1129 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1130 } 1131 } 1132 1133 void doTraversal() { 1134 if (mTraversalScheduled) { 1135 mTraversalScheduled = false; 1136 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1137 1138 if (mProfile) { 1139 Debug.startMethodTracing("ViewAncestor"); 1140 } 1141 1142 performTraversals(); 1143 1144 if (mProfile) { 1145 Debug.stopMethodTracing(); 1146 mProfile = false; 1147 } 1148 } 1149 } 1150 1151 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1152 // Update window's global keep screen on flag: if a view has requested 1153 // that the screen be kept on, then it is always set; otherwise, it is 1154 // set to whatever the client last requested for the global state. 1155 if (mAttachInfo.mKeepScreenOn) { 1156 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1157 } else { 1158 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1159 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1160 } 1161 } 1162 1163 private boolean collectViewAttributes() { 1164 if (mAttachInfo.mRecomputeGlobalAttributes) { 1165 //Log.i(TAG, "Computing view hierarchy attributes!"); 1166 mAttachInfo.mRecomputeGlobalAttributes = false; 1167 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1168 mAttachInfo.mKeepScreenOn = false; 1169 mAttachInfo.mSystemUiVisibility = 0; 1170 mAttachInfo.mHasSystemUiListeners = false; 1171 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1172 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1173 WindowManager.LayoutParams params = mWindowAttributes; 1174 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1175 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1176 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1177 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1178 applyKeepScreenOnFlag(params); 1179 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1180 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1181 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1182 return true; 1183 } 1184 } 1185 return false; 1186 } 1187 1188 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1189 int vis = 0; 1190 // Translucent decor window flags imply stable system ui visibility. 1191 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1192 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1193 } 1194 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1195 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1196 } 1197 return vis; 1198 } 1199 1200 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1201 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1202 int childWidthMeasureSpec; 1203 int childHeightMeasureSpec; 1204 boolean windowSizeMayChange = false; 1205 1206 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1207 "Measuring " + host + " in display " + desiredWindowWidth 1208 + "x" + desiredWindowHeight + "..."); 1209 1210 boolean goodMeasure = false; 1211 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1212 // On large screens, we don't want to allow dialogs to just 1213 // stretch to fill the entire width of the screen to display 1214 // one line of text. First try doing the layout at a smaller 1215 // size to see if it will fit. 1216 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1217 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1218 int baseSize = 0; 1219 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1220 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1221 } 1222 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1223 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1224 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1225 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1226 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1227 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1228 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1229 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1230 goodMeasure = true; 1231 } else { 1232 // Didn't fit in that size... try expanding a bit. 1233 baseSize = (baseSize+desiredWindowWidth)/2; 1234 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1235 + baseSize); 1236 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1237 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1238 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1239 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1240 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1241 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1242 goodMeasure = true; 1243 } 1244 } 1245 } 1246 } 1247 1248 if (!goodMeasure) { 1249 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1250 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1251 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1252 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1253 windowSizeMayChange = true; 1254 } 1255 } 1256 1257 if (DBG) { 1258 System.out.println("======================================"); 1259 System.out.println("performTraversals -- after measure"); 1260 host.debug(); 1261 } 1262 1263 return windowSizeMayChange; 1264 } 1265 1266 /** 1267 * Modifies the input matrix such that it maps view-local coordinates to 1268 * on-screen coordinates. 1269 * 1270 * @param m input matrix to modify 1271 */ 1272 void transformMatrixToGlobal(Matrix m) { 1273 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1274 } 1275 1276 /** 1277 * Modifies the input matrix such that it maps on-screen coordinates to 1278 * view-local coordinates. 1279 * 1280 * @param m input matrix to modify 1281 */ 1282 void transformMatrixToLocal(Matrix m) { 1283 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1284 } 1285 1286 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1287 if (mLastWindowInsets == null || forceConstruct) { 1288 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1289 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1290 Rect contentInsets = mDispatchContentInsets; 1291 Rect stableInsets = mDispatchStableInsets; 1292 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1293 // immediately use pending insets. 1294 if (!forceConstruct 1295 && (!mPendingContentInsets.equals(contentInsets) || 1296 !mPendingStableInsets.equals(stableInsets))) { 1297 contentInsets = mPendingContentInsets; 1298 stableInsets = mPendingStableInsets; 1299 } 1300 Rect outsets = mAttachInfo.mOutsets; 1301 if (outsets.left > 0 || outsets.top > 0 || outsets.right > 0 || outsets.bottom > 0) { 1302 contentInsets = new Rect(contentInsets.left + outsets.left, 1303 contentInsets.top + outsets.top, contentInsets.right + outsets.right, 1304 contentInsets.bottom + outsets.bottom); 1305 } 1306 mLastWindowInsets = new WindowInsets(contentInsets, 1307 null /* windowDecorInsets */, stableInsets, 1308 mContext.getResources().getConfiguration().isScreenRound()); 1309 } 1310 return mLastWindowInsets; 1311 } 1312 1313 void dispatchApplyInsets(View host) { 1314 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1315 } 1316 1317 private void performTraversals() { 1318 // cache mView since it is used so much below... 1319 final View host = mView; 1320 1321 if (DBG) { 1322 System.out.println("======================================"); 1323 System.out.println("performTraversals"); 1324 host.debug(); 1325 } 1326 1327 if (host == null || !mAdded) 1328 return; 1329 1330 mIsInTraversal = true; 1331 mWillDrawSoon = true; 1332 boolean windowSizeMayChange = false; 1333 boolean newSurface = false; 1334 boolean surfaceChanged = false; 1335 WindowManager.LayoutParams lp = mWindowAttributes; 1336 1337 int desiredWindowWidth; 1338 int desiredWindowHeight; 1339 1340 final int viewVisibility = getHostVisibility(); 1341 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1342 || mNewSurfaceNeeded; 1343 1344 WindowManager.LayoutParams params = null; 1345 if (mWindowAttributesChanged) { 1346 mWindowAttributesChanged = false; 1347 surfaceChanged = true; 1348 params = lp; 1349 } 1350 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1351 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1352 params = lp; 1353 mFullRedrawNeeded = true; 1354 mLayoutRequested = true; 1355 if (mLastInCompatMode) { 1356 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1357 mLastInCompatMode = false; 1358 } else { 1359 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1360 mLastInCompatMode = true; 1361 } 1362 } 1363 1364 mWindowAttributesChangesFlag = 0; 1365 1366 Rect frame = mWinFrame; 1367 if (mFirst) { 1368 mFullRedrawNeeded = true; 1369 mLayoutRequested = true; 1370 1371 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1372 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1373 // NOTE -- system code, won't try to do compat mode. 1374 Point size = new Point(); 1375 mDisplay.getRealSize(size); 1376 desiredWindowWidth = size.x; 1377 desiredWindowHeight = size.y; 1378 } else { 1379 DisplayMetrics packageMetrics = 1380 mView.getContext().getResources().getDisplayMetrics(); 1381 desiredWindowWidth = packageMetrics.widthPixels; 1382 desiredWindowHeight = packageMetrics.heightPixels; 1383 } 1384 1385 // We used to use the following condition to choose 32 bits drawing caches: 1386 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1387 // However, windows are now always 32 bits by default, so choose 32 bits 1388 mAttachInfo.mUse32BitDrawingCache = true; 1389 mAttachInfo.mHasWindowFocus = false; 1390 mAttachInfo.mWindowVisibility = viewVisibility; 1391 mAttachInfo.mRecomputeGlobalAttributes = false; 1392 viewVisibilityChanged = false; 1393 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1394 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1395 // Set the layout direction if it has not been set before (inherit is the default) 1396 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1397 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1398 } 1399 host.dispatchAttachedToWindow(mAttachInfo, 0); 1400 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1401 dispatchApplyInsets(host); 1402 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1403 1404 } else { 1405 desiredWindowWidth = frame.width(); 1406 desiredWindowHeight = frame.height(); 1407 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1408 if (DEBUG_ORIENTATION) Log.v(TAG, 1409 "View " + host + " resized to: " + frame); 1410 mFullRedrawNeeded = true; 1411 mLayoutRequested = true; 1412 windowSizeMayChange = true; 1413 } 1414 } 1415 1416 if (viewVisibilityChanged) { 1417 mAttachInfo.mWindowVisibility = viewVisibility; 1418 host.dispatchWindowVisibilityChanged(viewVisibility); 1419 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1420 endDragResizing(); 1421 destroyHardwareResources(); 1422 } 1423 if (viewVisibility == View.GONE) { 1424 // After making a window gone, we will count it as being 1425 // shown for the first time the next time it gets focus. 1426 mHasHadWindowFocus = false; 1427 } 1428 } 1429 1430 // Non-visible windows can't hold accessibility focus. 1431 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1432 host.clearAccessibilityFocus(); 1433 } 1434 1435 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1436 getRunQueue().executeActions(mAttachInfo.mHandler); 1437 1438 boolean insetsChanged = false; 1439 1440 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1441 if (layoutRequested) { 1442 1443 final Resources res = mView.getContext().getResources(); 1444 1445 if (mFirst) { 1446 // make sure touch mode code executes by setting cached value 1447 // to opposite of the added touch mode. 1448 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1449 ensureTouchModeLocally(mAddedTouchMode); 1450 } else { 1451 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1452 insetsChanged = true; 1453 } 1454 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1455 insetsChanged = true; 1456 } 1457 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1458 insetsChanged = true; 1459 } 1460 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1461 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1462 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1463 + mAttachInfo.mVisibleInsets); 1464 } 1465 if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) { 1466 insetsChanged = true; 1467 } 1468 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1469 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1470 windowSizeMayChange = true; 1471 1472 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1473 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1474 // NOTE -- system code, won't try to do compat mode. 1475 Point size = new Point(); 1476 mDisplay.getRealSize(size); 1477 desiredWindowWidth = size.x; 1478 desiredWindowHeight = size.y; 1479 } else { 1480 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1481 desiredWindowWidth = packageMetrics.widthPixels; 1482 desiredWindowHeight = packageMetrics.heightPixels; 1483 } 1484 } 1485 } 1486 1487 // Ask host how big it wants to be 1488 windowSizeMayChange |= measureHierarchy(host, lp, res, 1489 desiredWindowWidth, desiredWindowHeight); 1490 } 1491 1492 if (collectViewAttributes()) { 1493 params = lp; 1494 } 1495 if (mAttachInfo.mForceReportNewAttributes) { 1496 mAttachInfo.mForceReportNewAttributes = false; 1497 params = lp; 1498 } 1499 1500 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1501 mAttachInfo.mViewVisibilityChanged = false; 1502 int resizeMode = mSoftInputMode & 1503 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1504 // If we are in auto resize mode, then we need to determine 1505 // what mode to use now. 1506 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1507 final int N = mAttachInfo.mScrollContainers.size(); 1508 for (int i=0; i<N; i++) { 1509 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1510 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1511 } 1512 } 1513 if (resizeMode == 0) { 1514 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1515 } 1516 if ((lp.softInputMode & 1517 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1518 lp.softInputMode = (lp.softInputMode & 1519 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1520 resizeMode; 1521 params = lp; 1522 } 1523 } 1524 } 1525 1526 if (params != null) { 1527 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1528 if (!PixelFormat.formatHasAlpha(params.format)) { 1529 params.format = PixelFormat.TRANSLUCENT; 1530 } 1531 } 1532 mAttachInfo.mOverscanRequested = (params.flags 1533 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1534 } 1535 1536 if (mApplyInsetsRequested) { 1537 mApplyInsetsRequested = false; 1538 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1539 dispatchApplyInsets(host); 1540 if (mLayoutRequested) { 1541 // Short-circuit catching a new layout request here, so 1542 // we don't need to go through two layout passes when things 1543 // change due to fitting system windows, which can happen a lot. 1544 windowSizeMayChange |= measureHierarchy(host, lp, 1545 mView.getContext().getResources(), 1546 desiredWindowWidth, desiredWindowHeight); 1547 } 1548 } 1549 1550 if (layoutRequested) { 1551 // Clear this now, so that if anything requests a layout in the 1552 // rest of this function we will catch it and re-run a full 1553 // layout pass. 1554 mLayoutRequested = false; 1555 } 1556 1557 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1558 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1559 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1560 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1561 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1562 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1563 windowShouldResize |= mDragResizing; 1564 1565 // If the backdrop frame doesn't equal to a frame, we are starting a resize operation, so 1566 // force it to be resized. 1567 windowShouldResize |= !mPendingBackDropFrame.equals(mWinFrame); 1568 1569 // Determine whether to compute insets. 1570 // If there are no inset listeners remaining then we may still need to compute 1571 // insets in case the old insets were non-empty and must be reset. 1572 final boolean computesInternalInsets = 1573 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1574 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1575 1576 boolean insetsPending = false; 1577 int relayoutResult = 0; 1578 1579 final boolean isViewVisible = viewVisibility == View.VISIBLE; 1580 if (mFirst || windowShouldResize || insetsChanged || 1581 viewVisibilityChanged || params != null) { 1582 1583 if (isViewVisible) { 1584 // If this window is giving internal insets to the window 1585 // manager, and it is being added or changing its visibility, 1586 // then we want to first give the window manager "fake" 1587 // insets to cause it to effectively ignore the content of 1588 // the window during layout. This avoids it briefly causing 1589 // other windows to resize/move based on the raw frame of the 1590 // window, waiting until we can finish laying out this window 1591 // and get back to the window manager with the ultimately 1592 // computed insets. 1593 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1594 } 1595 1596 if (mSurfaceHolder != null) { 1597 mSurfaceHolder.mSurfaceLock.lock(); 1598 mDrawingAllowed = true; 1599 } 1600 1601 boolean hwInitialized = false; 1602 boolean contentInsetsChanged = false; 1603 boolean hadSurface = mSurface.isValid(); 1604 1605 try { 1606 if (DEBUG_LAYOUT) { 1607 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1608 host.getMeasuredHeight() + ", params=" + params); 1609 } 1610 1611 if (mAttachInfo.mHardwareRenderer != null) { 1612 // relayoutWindow may decide to destroy mSurface. As that decision 1613 // happens in WindowManager service, we need to be defensive here 1614 // and stop using the surface in case it gets destroyed. 1615 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1616 // Animations were running so we need to push a frame 1617 // to resume them 1618 mDirty.set(0, 0, mWidth, mHeight); 1619 } 1620 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1621 } 1622 final int surfaceGenerationId = mSurface.getGenerationId(); 1623 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1624 1625 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1626 + " overscan=" + mPendingOverscanInsets.toShortString() 1627 + " content=" + mPendingContentInsets.toShortString() 1628 + " visible=" + mPendingVisibleInsets.toShortString() 1629 + " visible=" + mPendingStableInsets.toShortString() 1630 + " outsets=" + mPendingOutsets.toShortString() 1631 + " surface=" + mSurface); 1632 1633 if (mPendingConfiguration.seq != 0) { 1634 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1635 + mPendingConfiguration); 1636 updateConfiguration(new Configuration(mPendingConfiguration), !mFirst); 1637 mPendingConfiguration.seq = 0; 1638 } 1639 1640 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1641 mAttachInfo.mOverscanInsets); 1642 contentInsetsChanged = !mPendingContentInsets.equals( 1643 mAttachInfo.mContentInsets); 1644 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1645 mAttachInfo.mVisibleInsets); 1646 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1647 mAttachInfo.mStableInsets); 1648 final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets); 1649 final boolean surfaceSizeChanged = (relayoutResult 1650 & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0; 1651 if (contentInsetsChanged) { 1652 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1653 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1654 + mAttachInfo.mContentInsets); 1655 } 1656 if (overscanInsetsChanged) { 1657 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1658 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1659 + mAttachInfo.mOverscanInsets); 1660 // Need to relayout with content insets. 1661 contentInsetsChanged = true; 1662 } 1663 if (stableInsetsChanged) { 1664 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1665 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1666 + mAttachInfo.mStableInsets); 1667 // Need to relayout with content insets. 1668 contentInsetsChanged = true; 1669 } 1670 if (contentInsetsChanged || mLastSystemUiVisibility != 1671 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1672 || mLastOverscanRequested != mAttachInfo.mOverscanRequested 1673 || outsetsChanged) { 1674 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1675 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1676 mAttachInfo.mOutsets.set(mPendingOutsets); 1677 mApplyInsetsRequested = false; 1678 dispatchApplyInsets(host); 1679 } 1680 if (visibleInsetsChanged) { 1681 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1682 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1683 + mAttachInfo.mVisibleInsets); 1684 } 1685 1686 if (!hadSurface) { 1687 if (mSurface.isValid()) { 1688 // If we are creating a new surface, then we need to 1689 // completely redraw it. Also, when we get to the 1690 // point of drawing it we will hold off and schedule 1691 // a new traversal instead. This is so we can tell the 1692 // window manager about all of the windows being displayed 1693 // before actually drawing them, so it can display then 1694 // all at once. 1695 newSurface = true; 1696 mFullRedrawNeeded = true; 1697 mPreviousTransparentRegion.setEmpty(); 1698 1699 // Only initialize up-front if transparent regions are not 1700 // requested, otherwise defer to see if the entire window 1701 // will be transparent 1702 if (mAttachInfo.mHardwareRenderer != null) { 1703 try { 1704 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1705 mSurface); 1706 if (hwInitialized && (host.mPrivateFlags 1707 & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) { 1708 // Don't pre-allocate if transparent regions 1709 // are requested as they may not be needed 1710 mSurface.allocateBuffers(); 1711 } 1712 } catch (OutOfResourcesException e) { 1713 handleOutOfResourcesException(e); 1714 return; 1715 } 1716 } 1717 } 1718 } else if (!mSurface.isValid()) { 1719 // If the surface has been removed, then reset the scroll 1720 // positions. 1721 if (mLastScrolledFocus != null) { 1722 mLastScrolledFocus.clear(); 1723 } 1724 mScrollY = mCurScrollY = 0; 1725 if (mView instanceof RootViewSurfaceTaker) { 1726 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1727 } 1728 if (mScroller != null) { 1729 mScroller.abortAnimation(); 1730 } 1731 // Our surface is gone 1732 if (mAttachInfo.mHardwareRenderer != null && 1733 mAttachInfo.mHardwareRenderer.isEnabled()) { 1734 mAttachInfo.mHardwareRenderer.destroy(); 1735 } 1736 } else if ((surfaceGenerationId != mSurface.getGenerationId() 1737 || surfaceSizeChanged) 1738 && mSurfaceHolder == null 1739 && mAttachInfo.mHardwareRenderer != null) { 1740 mFullRedrawNeeded = true; 1741 try { 1742 // Need to do updateSurface (which leads to CanvasContext::setSurface and 1743 // re-create the EGLSurface) if either the Surface changed (as indicated by 1744 // generation id), or WindowManager changed the surface size. The latter is 1745 // because on some chips, changing the consumer side's BufferQueue size may 1746 // not take effect immediately unless we create a new EGLSurface. 1747 // Note that frame size change doesn't always imply surface size change (eg. 1748 // drag resizing uses fullscreen surface), need to check surfaceSizeChanged 1749 // flag from WindowManager. 1750 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1751 } catch (OutOfResourcesException e) { 1752 handleOutOfResourcesException(e); 1753 return; 1754 } 1755 } 1756 1757 final boolean dragResizing = (relayoutResult 1758 & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING) != 0; 1759 if (mDragResizing != dragResizing) { 1760 if (dragResizing) { 1761 startDragResizing(mPendingBackDropFrame); 1762 } else { 1763 // We shouldn't come here, but if we come we should end the resize. 1764 endDragResizing(); 1765 } 1766 } 1767 if (!USE_MT_RENDERER) { 1768 if (dragResizing) { 1769 mCanvasOffsetX = mWinFrame.left; 1770 mCanvasOffsetY = mWinFrame.top; 1771 } else { 1772 mCanvasOffsetX = mCanvasOffsetY = 0; 1773 } 1774 } 1775 } catch (RemoteException e) { 1776 } 1777 1778 if (DEBUG_ORIENTATION) Log.v( 1779 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1780 1781 mAttachInfo.mWindowLeft = frame.left; 1782 mAttachInfo.mWindowTop = frame.top; 1783 1784 // !!FIXME!! This next section handles the case where we did not get the 1785 // window size we asked for. We should avoid this by getting a maximum size from 1786 // the window session beforehand. 1787 if (mWidth != frame.width() || mHeight != frame.height()) { 1788 mWidth = frame.width(); 1789 mHeight = frame.height(); 1790 } 1791 1792 if (mSurfaceHolder != null) { 1793 // The app owns the surface; tell it about what is going on. 1794 if (mSurface.isValid()) { 1795 // XXX .copyFrom() doesn't work! 1796 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1797 mSurfaceHolder.mSurface = mSurface; 1798 } 1799 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1800 mSurfaceHolder.mSurfaceLock.unlock(); 1801 if (mSurface.isValid()) { 1802 if (!hadSurface) { 1803 mSurfaceHolder.ungetCallbacks(); 1804 1805 mIsCreating = true; 1806 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1807 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1808 if (callbacks != null) { 1809 for (SurfaceHolder.Callback c : callbacks) { 1810 c.surfaceCreated(mSurfaceHolder); 1811 } 1812 } 1813 surfaceChanged = true; 1814 } 1815 if (surfaceChanged) { 1816 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1817 lp.format, mWidth, mHeight); 1818 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1819 if (callbacks != null) { 1820 for (SurfaceHolder.Callback c : callbacks) { 1821 c.surfaceChanged(mSurfaceHolder, lp.format, 1822 mWidth, mHeight); 1823 } 1824 } 1825 } 1826 mIsCreating = false; 1827 } else if (hadSurface) { 1828 mSurfaceHolder.ungetCallbacks(); 1829 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1830 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1831 if (callbacks != null) { 1832 for (SurfaceHolder.Callback c : callbacks) { 1833 c.surfaceDestroyed(mSurfaceHolder); 1834 } 1835 } 1836 mSurfaceHolder.mSurfaceLock.lock(); 1837 try { 1838 mSurfaceHolder.mSurface = new Surface(); 1839 } finally { 1840 mSurfaceHolder.mSurfaceLock.unlock(); 1841 } 1842 } 1843 } 1844 1845 final ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 1846 if (hardwareRenderer != null && hardwareRenderer.isEnabled()) { 1847 if (hwInitialized 1848 || mWidth != hardwareRenderer.getWidth() 1849 || mHeight != hardwareRenderer.getHeight()) { 1850 hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, 1851 mWindowAttributes.surfaceInsets); 1852 } 1853 } 1854 1855 if (!mStopped || mReportNextDraw) { 1856 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1857 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1858 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1859 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1860 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1861 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1862 1863 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1864 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1865 + " mHeight=" + mHeight 1866 + " measuredHeight=" + host.getMeasuredHeight() 1867 + " coveredInsetsChanged=" + contentInsetsChanged); 1868 1869 // Ask host how big it wants to be 1870 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1871 1872 // Implementation of weights from WindowManager.LayoutParams 1873 // We just grow the dimensions as needed and re-measure if 1874 // needs be 1875 int width = host.getMeasuredWidth(); 1876 int height = host.getMeasuredHeight(); 1877 boolean measureAgain = false; 1878 1879 if (lp.horizontalWeight > 0.0f) { 1880 width += (int) ((mWidth - width) * lp.horizontalWeight); 1881 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1882 MeasureSpec.EXACTLY); 1883 measureAgain = true; 1884 } 1885 if (lp.verticalWeight > 0.0f) { 1886 height += (int) ((mHeight - height) * lp.verticalWeight); 1887 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1888 MeasureSpec.EXACTLY); 1889 measureAgain = true; 1890 } 1891 1892 if (measureAgain) { 1893 if (DEBUG_LAYOUT) Log.v(TAG, 1894 "And hey let's measure once more: width=" + width 1895 + " height=" + height); 1896 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1897 } 1898 1899 layoutRequested = true; 1900 } 1901 } 1902 } else { 1903 // Not the first pass and no window/insets/visibility change but the window 1904 // may have moved and we need check that and if so to update the left and right 1905 // in the attach info. We translate only the window frame since on window move 1906 // the window manager tells us only for the new frame but the insets are the 1907 // same and we do not want to translate them more than once. 1908 1909 // TODO: Well, we are checking whether the frame has changed similarly 1910 // to how this is done for the insets. This is however incorrect since 1911 // the insets and the frame are translated. For example, the old frame 1912 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1913 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1914 // true since we are comparing a not translated value to a translated one. 1915 // This scenario is rare but we may want to fix that. 1916 1917 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1918 || mAttachInfo.mWindowTop != frame.top); 1919 if (windowMoved) { 1920 if (mTranslator != null) { 1921 mTranslator.translateRectInScreenToAppWinFrame(frame); 1922 } 1923 mAttachInfo.mWindowLeft = frame.left; 1924 mAttachInfo.mWindowTop = frame.top; 1925 1926 // Update the light position for the new window offsets. 1927 if (mAttachInfo.mHardwareRenderer != null) { 1928 mAttachInfo.mHardwareRenderer.setLightCenter(mAttachInfo); 1929 } 1930 } 1931 } 1932 1933 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1934 boolean triggerGlobalLayoutListener = didLayout 1935 || mAttachInfo.mRecomputeGlobalAttributes; 1936 if (didLayout) { 1937 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1938 1939 // By this point all views have been sized and positioned 1940 // We can compute the transparent area 1941 1942 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1943 // start out transparent 1944 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1945 host.getLocationInWindow(mTmpLocation); 1946 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1947 mTmpLocation[0] + host.mRight - host.mLeft, 1948 mTmpLocation[1] + host.mBottom - host.mTop); 1949 1950 host.gatherTransparentRegion(mTransparentRegion); 1951 if (mTranslator != null) { 1952 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1953 } 1954 1955 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1956 mPreviousTransparentRegion.set(mTransparentRegion); 1957 mFullRedrawNeeded = true; 1958 // reconfigure window manager 1959 try { 1960 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1961 } catch (RemoteException e) { 1962 } 1963 } 1964 } 1965 1966 if (DBG) { 1967 System.out.println("======================================"); 1968 System.out.println("performTraversals -- after setFrame"); 1969 host.debug(); 1970 } 1971 } 1972 1973 if (triggerGlobalLayoutListener) { 1974 mAttachInfo.mRecomputeGlobalAttributes = false; 1975 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1976 } 1977 1978 if (computesInternalInsets) { 1979 // Clear the original insets. 1980 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1981 insets.reset(); 1982 1983 // Compute new insets in place. 1984 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1985 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1986 1987 // Tell the window manager. 1988 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1989 mLastGivenInsets.set(insets); 1990 1991 // Translate insets to screen coordinates if needed. 1992 final Rect contentInsets; 1993 final Rect visibleInsets; 1994 final Region touchableRegion; 1995 if (mTranslator != null) { 1996 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1997 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1998 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1999 } else { 2000 contentInsets = insets.contentInsets; 2001 visibleInsets = insets.visibleInsets; 2002 touchableRegion = insets.touchableRegion; 2003 } 2004 2005 try { 2006 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 2007 contentInsets, visibleInsets, touchableRegion); 2008 } catch (RemoteException e) { 2009 } 2010 } 2011 } 2012 2013 if (mFirst) { 2014 // handle first focus request 2015 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 2016 + mView.hasFocus()); 2017 if (mView != null) { 2018 if (!mView.hasFocus()) { 2019 mView.requestFocus(View.FOCUS_FORWARD); 2020 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 2021 + mView.findFocus()); 2022 } else { 2023 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 2024 + mView.findFocus()); 2025 } 2026 } 2027 } 2028 2029 final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible; 2030 final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible; 2031 final boolean regainedFocus = hasWindowFocus && mLostWindowFocus; 2032 if (regainedFocus) { 2033 mLostWindowFocus = false; 2034 } else if (!hasWindowFocus && mHadWindowFocus) { 2035 mLostWindowFocus = true; 2036 } 2037 2038 if (changedVisibility || regainedFocus) { 2039 host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2040 } 2041 2042 mFirst = false; 2043 mWillDrawSoon = false; 2044 mNewSurfaceNeeded = false; 2045 mViewVisibility = viewVisibility; 2046 mHadWindowFocus = hasWindowFocus; 2047 2048 if (hasWindowFocus && !isInLocalFocusMode()) { 2049 final boolean imTarget = WindowManager.LayoutParams 2050 .mayUseInputMethod(mWindowAttributes.flags); 2051 if (imTarget != mLastWasImTarget) { 2052 mLastWasImTarget = imTarget; 2053 InputMethodManager imm = InputMethodManager.peekInstance(); 2054 if (imm != null && imTarget) { 2055 imm.onPreWindowFocus(mView, hasWindowFocus); 2056 imm.onPostWindowFocus(mView, mView.findFocus(), 2057 mWindowAttributes.softInputMode, 2058 !mHasHadWindowFocus, mWindowAttributes.flags); 2059 } 2060 } 2061 } 2062 2063 // Remember if we must report the next draw. 2064 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2065 mReportNextDraw = true; 2066 } 2067 2068 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible; 2069 2070 if (!cancelDraw && !newSurface) { 2071 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2072 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2073 mPendingTransitions.get(i).startChangingAnimations(); 2074 } 2075 mPendingTransitions.clear(); 2076 } 2077 2078 performDraw(); 2079 } else { 2080 if (isViewVisible) { 2081 // Try again 2082 scheduleTraversals(); 2083 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2084 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2085 mPendingTransitions.get(i).endChangingAnimations(); 2086 } 2087 mPendingTransitions.clear(); 2088 } 2089 } 2090 2091 mIsInTraversal = false; 2092 } 2093 2094 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2095 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2096 try { 2097 if (!mWindowSession.outOfMemory(mWindow) && 2098 Process.myUid() != Process.SYSTEM_UID) { 2099 Slog.w(TAG, "No processes killed for memory; killing self"); 2100 Process.killProcess(Process.myPid()); 2101 } 2102 } catch (RemoteException ex) { 2103 } 2104 mLayoutRequested = true; // ask wm for a new surface next time. 2105 } 2106 2107 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2108 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2109 try { 2110 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2111 } finally { 2112 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2113 } 2114 } 2115 2116 /** 2117 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2118 * is currently undergoing a layout pass. 2119 * 2120 * @return whether the view hierarchy is currently undergoing a layout pass 2121 */ 2122 boolean isInLayout() { 2123 return mInLayout; 2124 } 2125 2126 /** 2127 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2128 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2129 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2130 * all children in that container hierarchy are measured and laid out at the end of the layout 2131 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2132 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2133 * we check all of those views to see if any still have pending layout requests, which 2134 * indicates that they were not correctly handled by their container hierarchy. If that is 2135 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2136 * to blank containers, and force a second request/measure/layout pass in this frame. If 2137 * more requestLayout() calls are received during that second layout pass, we post those 2138 * requests to the next frame to avoid possible infinite loops. 2139 * 2140 * <p>The return value from this method indicates whether the request should proceed 2141 * (if it is a request during the first layout pass) or should be skipped and posted to the 2142 * next frame (if it is a request during the second layout pass).</p> 2143 * 2144 * @param view the view that requested the layout. 2145 * 2146 * @return true if request should proceed, false otherwise. 2147 */ 2148 boolean requestLayoutDuringLayout(final View view) { 2149 if (view.mParent == null || view.mAttachInfo == null) { 2150 // Would not normally trigger another layout, so just let it pass through as usual 2151 return true; 2152 } 2153 if (!mLayoutRequesters.contains(view)) { 2154 mLayoutRequesters.add(view); 2155 } 2156 if (!mHandlingLayoutInLayoutRequest) { 2157 // Let the request proceed normally; it will be processed in a second layout pass 2158 // if necessary 2159 return true; 2160 } else { 2161 // Don't let the request proceed during the second layout pass. 2162 // It will post to the next frame instead. 2163 return false; 2164 } 2165 } 2166 2167 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2168 int desiredWindowHeight) { 2169 mLayoutRequested = false; 2170 mScrollMayChange = true; 2171 mInLayout = true; 2172 2173 final View host = mView; 2174 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2175 Log.v(TAG, "Laying out " + host + " to (" + 2176 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2177 } 2178 2179 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2180 try { 2181 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2182 2183 mInLayout = false; 2184 int numViewsRequestingLayout = mLayoutRequesters.size(); 2185 if (numViewsRequestingLayout > 0) { 2186 // requestLayout() was called during layout. 2187 // If no layout-request flags are set on the requesting views, there is no problem. 2188 // If some requests are still pending, then we need to clear those flags and do 2189 // a full request/measure/layout pass to handle this situation. 2190 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2191 false); 2192 if (validLayoutRequesters != null) { 2193 // Set this flag to indicate that any further requests are happening during 2194 // the second pass, which may result in posting those requests to the next 2195 // frame instead 2196 mHandlingLayoutInLayoutRequest = true; 2197 2198 // Process fresh layout requests, then measure and layout 2199 int numValidRequests = validLayoutRequesters.size(); 2200 for (int i = 0; i < numValidRequests; ++i) { 2201 final View view = validLayoutRequesters.get(i); 2202 Log.w("View", "requestLayout() improperly called by " + view + 2203 " during layout: running second layout pass"); 2204 view.requestLayout(); 2205 } 2206 measureHierarchy(host, lp, mView.getContext().getResources(), 2207 desiredWindowWidth, desiredWindowHeight); 2208 mInLayout = true; 2209 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2210 2211 mHandlingLayoutInLayoutRequest = false; 2212 2213 // Check the valid requests again, this time without checking/clearing the 2214 // layout flags, since requests happening during the second pass get noop'd 2215 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2216 if (validLayoutRequesters != null) { 2217 final ArrayList<View> finalRequesters = validLayoutRequesters; 2218 // Post second-pass requests to the next frame 2219 getRunQueue().post(new Runnable() { 2220 @Override 2221 public void run() { 2222 int numValidRequests = finalRequesters.size(); 2223 for (int i = 0; i < numValidRequests; ++i) { 2224 final View view = finalRequesters.get(i); 2225 Log.w("View", "requestLayout() improperly called by " + view + 2226 " during second layout pass: posting in next frame"); 2227 view.requestLayout(); 2228 } 2229 } 2230 }); 2231 } 2232 } 2233 2234 } 2235 } finally { 2236 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2237 } 2238 mInLayout = false; 2239 } 2240 2241 /** 2242 * This method is called during layout when there have been calls to requestLayout() during 2243 * layout. It walks through the list of views that requested layout to determine which ones 2244 * still need it, based on visibility in the hierarchy and whether they have already been 2245 * handled (as is usually the case with ListView children). 2246 * 2247 * @param layoutRequesters The list of views that requested layout during layout 2248 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2249 * If so, the FORCE_LAYOUT flag was not set on requesters. 2250 * @return A list of the actual views that still need to be laid out. 2251 */ 2252 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2253 boolean secondLayoutRequests) { 2254 2255 int numViewsRequestingLayout = layoutRequesters.size(); 2256 ArrayList<View> validLayoutRequesters = null; 2257 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2258 View view = layoutRequesters.get(i); 2259 if (view != null && view.mAttachInfo != null && view.mParent != null && 2260 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2261 View.PFLAG_FORCE_LAYOUT)) { 2262 boolean gone = false; 2263 View parent = view; 2264 // Only trigger new requests for views in a non-GONE hierarchy 2265 while (parent != null) { 2266 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2267 gone = true; 2268 break; 2269 } 2270 if (parent.mParent instanceof View) { 2271 parent = (View) parent.mParent; 2272 } else { 2273 parent = null; 2274 } 2275 } 2276 if (!gone) { 2277 if (validLayoutRequesters == null) { 2278 validLayoutRequesters = new ArrayList<View>(); 2279 } 2280 validLayoutRequesters.add(view); 2281 } 2282 } 2283 } 2284 if (!secondLayoutRequests) { 2285 // If we're checking the layout flags, then we need to clean them up also 2286 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2287 View view = layoutRequesters.get(i); 2288 while (view != null && 2289 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2290 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2291 if (view.mParent instanceof View) { 2292 view = (View) view.mParent; 2293 } else { 2294 view = null; 2295 } 2296 } 2297 } 2298 } 2299 layoutRequesters.clear(); 2300 return validLayoutRequesters; 2301 } 2302 2303 @Override 2304 public void requestTransparentRegion(View child) { 2305 // the test below should not fail unless someone is messing with us 2306 checkThread(); 2307 if (mView == child) { 2308 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2309 // Need to make sure we re-evaluate the window attributes next 2310 // time around, to ensure the window has the correct format. 2311 mWindowAttributesChanged = true; 2312 mWindowAttributesChangesFlag = 0; 2313 requestLayout(); 2314 } 2315 } 2316 2317 /** 2318 * Figures out the measure spec for the root view in a window based on it's 2319 * layout params. 2320 * 2321 * @param windowSize 2322 * The available width or height of the window 2323 * 2324 * @param rootDimension 2325 * The layout params for one dimension (width or height) of the 2326 * window. 2327 * 2328 * @return The measure spec to use to measure the root view. 2329 */ 2330 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2331 int measureSpec; 2332 switch (rootDimension) { 2333 2334 case ViewGroup.LayoutParams.MATCH_PARENT: 2335 // Window can't resize. Force root view to be windowSize. 2336 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2337 break; 2338 case ViewGroup.LayoutParams.WRAP_CONTENT: 2339 // Window can resize. Set max size for root view. 2340 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2341 break; 2342 default: 2343 // Window wants to be an exact size. Force root view to be that size. 2344 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2345 break; 2346 } 2347 return measureSpec; 2348 } 2349 2350 int mHardwareXOffset; 2351 int mHardwareYOffset; 2352 2353 @Override 2354 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2355 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2356 } 2357 2358 @Override 2359 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2360 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2361 } 2362 2363 /** 2364 * @hide 2365 */ 2366 void outputDisplayList(View view) { 2367 view.mRenderNode.output(); 2368 if (mAttachInfo.mHardwareRenderer != null) { 2369 ((ThreadedRenderer)mAttachInfo.mHardwareRenderer).serializeDisplayListTree(); 2370 } 2371 } 2372 2373 /** 2374 * @see #PROPERTY_PROFILE_RENDERING 2375 */ 2376 private void profileRendering(boolean enabled) { 2377 if (mProfileRendering) { 2378 mRenderProfilingEnabled = enabled; 2379 2380 if (mRenderProfiler != null) { 2381 mChoreographer.removeFrameCallback(mRenderProfiler); 2382 } 2383 if (mRenderProfilingEnabled) { 2384 if (mRenderProfiler == null) { 2385 mRenderProfiler = new Choreographer.FrameCallback() { 2386 @Override 2387 public void doFrame(long frameTimeNanos) { 2388 mDirty.set(0, 0, mWidth, mHeight); 2389 scheduleTraversals(); 2390 if (mRenderProfilingEnabled) { 2391 mChoreographer.postFrameCallback(mRenderProfiler); 2392 } 2393 } 2394 }; 2395 } 2396 mChoreographer.postFrameCallback(mRenderProfiler); 2397 } else { 2398 mRenderProfiler = null; 2399 } 2400 } 2401 } 2402 2403 /** 2404 * Called from draw() when DEBUG_FPS is enabled 2405 */ 2406 private void trackFPS() { 2407 // Tracks frames per second drawn. First value in a series of draws may be bogus 2408 // because it down not account for the intervening idle time 2409 long nowTime = System.currentTimeMillis(); 2410 if (mFpsStartTime < 0) { 2411 mFpsStartTime = mFpsPrevTime = nowTime; 2412 mFpsNumFrames = 0; 2413 } else { 2414 ++mFpsNumFrames; 2415 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2416 long frameTime = nowTime - mFpsPrevTime; 2417 long totalTime = nowTime - mFpsStartTime; 2418 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2419 mFpsPrevTime = nowTime; 2420 if (totalTime > 1000) { 2421 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2422 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2423 mFpsStartTime = nowTime; 2424 mFpsNumFrames = 0; 2425 } 2426 } 2427 } 2428 2429 private void performDraw() { 2430 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2431 return; 2432 } 2433 2434 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2435 mFullRedrawNeeded = false; 2436 2437 mIsDrawing = true; 2438 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2439 try { 2440 draw(fullRedrawNeeded); 2441 } finally { 2442 mIsDrawing = false; 2443 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2444 } 2445 2446 // For whatever reason we didn't create a HardwareRenderer, end any 2447 // hardware animations that are now dangling 2448 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2449 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2450 for (int i = 0; i < count; i++) { 2451 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2452 } 2453 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2454 } 2455 2456 if (mReportNextDraw) { 2457 mReportNextDraw = false; 2458 2459 // if we're using multi-thread renderer, wait for the window frame draws 2460 if (mWindowDrawCountDown != null) { 2461 try { 2462 mWindowDrawCountDown.await(); 2463 } catch (InterruptedException e) { 2464 Log.e(TAG, "Window redraw count down interruped!"); 2465 } 2466 mWindowDrawCountDown = null; 2467 } 2468 2469 if (mAttachInfo.mHardwareRenderer != null) { 2470 mAttachInfo.mHardwareRenderer.fence(); 2471 } 2472 2473 if (LOCAL_LOGV) { 2474 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2475 } 2476 if (mSurfaceHolder != null && mSurface.isValid()) { 2477 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2478 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2479 if (callbacks != null) { 2480 for (SurfaceHolder.Callback c : callbacks) { 2481 if (c instanceof SurfaceHolder.Callback2) { 2482 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded(mSurfaceHolder); 2483 } 2484 } 2485 } 2486 } 2487 try { 2488 mWindowSession.finishDrawing(mWindow); 2489 } catch (RemoteException e) { 2490 } 2491 } 2492 } 2493 2494 private void draw(boolean fullRedrawNeeded) { 2495 Surface surface = mSurface; 2496 if (!surface.isValid()) { 2497 return; 2498 } 2499 2500 if (DEBUG_FPS) { 2501 trackFPS(); 2502 } 2503 2504 if (!sFirstDrawComplete) { 2505 synchronized (sFirstDrawHandlers) { 2506 sFirstDrawComplete = true; 2507 final int count = sFirstDrawHandlers.size(); 2508 for (int i = 0; i< count; i++) { 2509 mHandler.post(sFirstDrawHandlers.get(i)); 2510 } 2511 } 2512 } 2513 2514 scrollToRectOrFocus(null, false); 2515 2516 if (mAttachInfo.mViewScrollChanged) { 2517 mAttachInfo.mViewScrollChanged = false; 2518 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2519 } 2520 2521 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2522 final int curScrollY; 2523 if (animating) { 2524 curScrollY = mScroller.getCurrY(); 2525 } else { 2526 curScrollY = mScrollY; 2527 } 2528 if (mCurScrollY != curScrollY) { 2529 mCurScrollY = curScrollY; 2530 fullRedrawNeeded = true; 2531 if (mView instanceof RootViewSurfaceTaker) { 2532 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2533 } 2534 } 2535 2536 final float appScale = mAttachInfo.mApplicationScale; 2537 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2538 2539 int resizeAlpha = 0; 2540 2541 final Rect dirty = mDirty; 2542 if (mSurfaceHolder != null) { 2543 // The app owns the surface, we won't draw. 2544 dirty.setEmpty(); 2545 if (animating && mScroller != null) { 2546 mScroller.abortAnimation(); 2547 } 2548 return; 2549 } 2550 2551 if (fullRedrawNeeded) { 2552 mAttachInfo.mIgnoreDirtyState = true; 2553 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2554 } 2555 2556 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2557 Log.v(TAG, "Draw " + mView + "/" 2558 + mWindowAttributes.getTitle() 2559 + ": dirty={" + dirty.left + "," + dirty.top 2560 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2561 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2562 appScale + ", width=" + mWidth + ", height=" + mHeight); 2563 } 2564 2565 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2566 2567 int xOffset = -mCanvasOffsetX; 2568 int yOffset = -mCanvasOffsetY + curScrollY; 2569 final WindowManager.LayoutParams params = mWindowAttributes; 2570 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2571 if (surfaceInsets != null) { 2572 xOffset -= surfaceInsets.left; 2573 yOffset -= surfaceInsets.top; 2574 2575 // Offset dirty rect for surface insets. 2576 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2577 } 2578 2579 boolean accessibilityFocusDirty = false; 2580 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2581 if (drawable != null) { 2582 final Rect bounds = mAttachInfo.mTmpInvalRect; 2583 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2584 if (!hasFocus) { 2585 bounds.setEmpty(); 2586 } 2587 if (!bounds.equals(drawable.getBounds())) { 2588 accessibilityFocusDirty = true; 2589 } 2590 } 2591 2592 mAttachInfo.mDrawingTime = 2593 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2594 2595 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2596 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2597 // If accessibility focus moved, always invalidate the root. 2598 boolean invalidateRoot = accessibilityFocusDirty; 2599 2600 // Draw with hardware renderer. 2601 mIsAnimating = false; 2602 2603 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2604 mHardwareYOffset = yOffset; 2605 mHardwareXOffset = xOffset; 2606 invalidateRoot = true; 2607 } 2608 2609 if (invalidateRoot) { 2610 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2611 } 2612 2613 dirty.setEmpty(); 2614 2615 // Stage the content drawn size now. It will be transferred to the renderer 2616 // shortly before the draw commands get send to the renderer. 2617 final boolean updated = updateContentDrawBounds(); 2618 2619 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2620 2621 if (updated) { 2622 requestDrawWindow(); 2623 } 2624 } else { 2625 // If we get here with a disabled & requested hardware renderer, something went 2626 // wrong (an invalidate posted right before we destroyed the hardware surface 2627 // for instance) so we should just bail out. Locking the surface with software 2628 // rendering at this point would lock it forever and prevent hardware renderer 2629 // from doing its job when it comes back. 2630 // Before we request a new frame we must however attempt to reinitiliaze the 2631 // hardware renderer if it's in requested state. This would happen after an 2632 // eglTerminate() for instance. 2633 if (mAttachInfo.mHardwareRenderer != null && 2634 !mAttachInfo.mHardwareRenderer.isEnabled() && 2635 mAttachInfo.mHardwareRenderer.isRequested()) { 2636 2637 try { 2638 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2639 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 2640 } catch (OutOfResourcesException e) { 2641 handleOutOfResourcesException(e); 2642 return; 2643 } 2644 2645 mFullRedrawNeeded = true; 2646 scheduleTraversals(); 2647 return; 2648 } 2649 2650 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2651 return; 2652 } 2653 } 2654 } 2655 2656 if (animating) { 2657 mFullRedrawNeeded = true; 2658 scheduleTraversals(); 2659 } 2660 } 2661 2662 /** 2663 * @return true if drawing was successful, false if an error occurred 2664 */ 2665 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2666 boolean scalingRequired, Rect dirty) { 2667 2668 // Draw with software renderer. 2669 final Canvas canvas; 2670 try { 2671 final int left = dirty.left; 2672 final int top = dirty.top; 2673 final int right = dirty.right; 2674 final int bottom = dirty.bottom; 2675 2676 canvas = mSurface.lockCanvas(dirty); 2677 2678 // The dirty rectangle can be modified by Surface.lockCanvas() 2679 //noinspection ConstantConditions 2680 if (left != dirty.left || top != dirty.top || right != dirty.right 2681 || bottom != dirty.bottom) { 2682 attachInfo.mIgnoreDirtyState = true; 2683 } 2684 2685 // TODO: Do this in native 2686 canvas.setDensity(mDensity); 2687 } catch (Surface.OutOfResourcesException e) { 2688 handleOutOfResourcesException(e); 2689 return false; 2690 } catch (IllegalArgumentException e) { 2691 Log.e(TAG, "Could not lock surface", e); 2692 // Don't assume this is due to out of memory, it could be 2693 // something else, and if it is something else then we could 2694 // kill stuff (or ourself) for no reason. 2695 mLayoutRequested = true; // ask wm for a new surface next time. 2696 return false; 2697 } 2698 2699 try { 2700 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2701 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2702 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2703 //canvas.drawARGB(255, 255, 0, 0); 2704 } 2705 2706 // If this bitmap's format includes an alpha channel, we 2707 // need to clear it before drawing so that the child will 2708 // properly re-composite its drawing on a transparent 2709 // background. This automatically respects the clip/dirty region 2710 // or 2711 // If we are applying an offset, we need to clear the area 2712 // where the offset doesn't appear to avoid having garbage 2713 // left in the blank areas. 2714 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2715 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2716 } 2717 2718 dirty.setEmpty(); 2719 mIsAnimating = false; 2720 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2721 2722 if (DEBUG_DRAW) { 2723 Context cxt = mView.getContext(); 2724 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2725 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2726 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2727 } 2728 try { 2729 canvas.translate(-xoff, -yoff); 2730 if (mTranslator != null) { 2731 mTranslator.translateCanvas(canvas); 2732 } 2733 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2734 attachInfo.mSetIgnoreDirtyState = false; 2735 2736 mView.draw(canvas); 2737 2738 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2739 } finally { 2740 if (!attachInfo.mSetIgnoreDirtyState) { 2741 // Only clear the flag if it was not set during the mView.draw() call 2742 attachInfo.mIgnoreDirtyState = false; 2743 } 2744 } 2745 } finally { 2746 try { 2747 surface.unlockCanvasAndPost(canvas); 2748 } catch (IllegalArgumentException e) { 2749 Log.e(TAG, "Could not unlock surface", e); 2750 mLayoutRequested = true; // ask wm for a new surface next time. 2751 //noinspection ReturnInsideFinallyBlock 2752 return false; 2753 } 2754 2755 if (LOCAL_LOGV) { 2756 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2757 } 2758 } 2759 return true; 2760 } 2761 2762 /** 2763 * We want to draw a highlight around the current accessibility focused. 2764 * Since adding a style for all possible view is not a viable option we 2765 * have this specialized drawing method. 2766 * 2767 * Note: We are doing this here to be able to draw the highlight for 2768 * virtual views in addition to real ones. 2769 * 2770 * @param canvas The canvas on which to draw. 2771 */ 2772 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2773 final Rect bounds = mAttachInfo.mTmpInvalRect; 2774 if (getAccessibilityFocusedRect(bounds)) { 2775 final Drawable drawable = getAccessibilityFocusedDrawable(); 2776 if (drawable != null) { 2777 drawable.setBounds(bounds); 2778 drawable.draw(canvas); 2779 } 2780 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2781 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2782 } 2783 } 2784 2785 private boolean getAccessibilityFocusedRect(Rect bounds) { 2786 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2787 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2788 return false; 2789 } 2790 2791 final View host = mAccessibilityFocusedHost; 2792 if (host == null || host.mAttachInfo == null) { 2793 return false; 2794 } 2795 2796 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2797 if (provider == null) { 2798 host.getBoundsOnScreen(bounds, true); 2799 } else if (mAccessibilityFocusedVirtualView != null) { 2800 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2801 } else { 2802 return false; 2803 } 2804 2805 // Transform the rect into window-relative coordinates. 2806 final AttachInfo attachInfo = mAttachInfo; 2807 bounds.offset(0, attachInfo.mViewRootImpl.mScrollY); 2808 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2809 if (!bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, 2810 attachInfo.mViewRootImpl.mHeight)) { 2811 // If no intersection, set bounds to empty. 2812 bounds.setEmpty(); 2813 } 2814 return !bounds.isEmpty(); 2815 } 2816 2817 private Drawable getAccessibilityFocusedDrawable() { 2818 // Lazily load the accessibility focus drawable. 2819 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2820 final TypedValue value = new TypedValue(); 2821 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2822 R.attr.accessibilityFocusedDrawable, value, true); 2823 if (resolved) { 2824 mAttachInfo.mAccessibilityFocusDrawable = 2825 mView.mContext.getDrawable(value.resourceId); 2826 } 2827 } 2828 return mAttachInfo.mAccessibilityFocusDrawable; 2829 } 2830 2831 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2832 final Rect ci = mAttachInfo.mContentInsets; 2833 final Rect vi = mAttachInfo.mVisibleInsets; 2834 int scrollY = 0; 2835 boolean handled = false; 2836 2837 if (vi.left > ci.left || vi.top > ci.top 2838 || vi.right > ci.right || vi.bottom > ci.bottom) { 2839 // We'll assume that we aren't going to change the scroll 2840 // offset, since we want to avoid that unless it is actually 2841 // going to make the focus visible... otherwise we scroll 2842 // all over the place. 2843 scrollY = mScrollY; 2844 // We can be called for two different situations: during a draw, 2845 // to update the scroll position if the focus has changed (in which 2846 // case 'rectangle' is null), or in response to a 2847 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2848 // is non-null and we just want to scroll to whatever that 2849 // rectangle is). 2850 final View focus = mView.findFocus(); 2851 if (focus == null) { 2852 return false; 2853 } 2854 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2855 if (focus != lastScrolledFocus) { 2856 // If the focus has changed, then ignore any requests to scroll 2857 // to a rectangle; first we want to make sure the entire focus 2858 // view is visible. 2859 rectangle = null; 2860 } 2861 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2862 + " rectangle=" + rectangle + " ci=" + ci 2863 + " vi=" + vi); 2864 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2865 // Optimization: if the focus hasn't changed since last 2866 // time, and no layout has happened, then just leave things 2867 // as they are. 2868 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2869 + mScrollY + " vi=" + vi.toShortString()); 2870 } else { 2871 // We need to determine if the currently focused view is 2872 // within the visible part of the window and, if not, apply 2873 // a pan so it can be seen. 2874 mLastScrolledFocus = new WeakReference<View>(focus); 2875 mScrollMayChange = false; 2876 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2877 // Try to find the rectangle from the focus view. 2878 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2879 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2880 + mView.getWidth() + " h=" + mView.getHeight() 2881 + " ci=" + ci.toShortString() 2882 + " vi=" + vi.toShortString()); 2883 if (rectangle == null) { 2884 focus.getFocusedRect(mTempRect); 2885 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2886 + ": focusRect=" + mTempRect.toShortString()); 2887 if (mView instanceof ViewGroup) { 2888 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2889 focus, mTempRect); 2890 } 2891 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2892 "Focus in window: focusRect=" 2893 + mTempRect.toShortString() 2894 + " visRect=" + mVisRect.toShortString()); 2895 } else { 2896 mTempRect.set(rectangle); 2897 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2898 "Request scroll to rect: " 2899 + mTempRect.toShortString() 2900 + " visRect=" + mVisRect.toShortString()); 2901 } 2902 if (mTempRect.intersect(mVisRect)) { 2903 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2904 "Focus window visible rect: " 2905 + mTempRect.toShortString()); 2906 if (mTempRect.height() > 2907 (mView.getHeight()-vi.top-vi.bottom)) { 2908 // If the focus simply is not going to fit, then 2909 // best is probably just to leave things as-is. 2910 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2911 "Too tall; leaving scrollY=" + scrollY); 2912 } else if ((mTempRect.top-scrollY) < vi.top) { 2913 scrollY -= vi.top - (mTempRect.top-scrollY); 2914 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2915 "Top covered; scrollY=" + scrollY); 2916 } else if ((mTempRect.bottom-scrollY) 2917 > (mView.getHeight()-vi.bottom)) { 2918 scrollY += (mTempRect.bottom-scrollY) 2919 - (mView.getHeight()-vi.bottom); 2920 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2921 "Bottom covered; scrollY=" + scrollY); 2922 } 2923 handled = true; 2924 } 2925 } 2926 } 2927 } 2928 2929 if (scrollY != mScrollY) { 2930 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2931 + mScrollY + " , new=" + scrollY); 2932 if (!immediate) { 2933 if (mScroller == null) { 2934 mScroller = new Scroller(mView.getContext()); 2935 } 2936 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2937 } else if (mScroller != null) { 2938 mScroller.abortAnimation(); 2939 } 2940 mScrollY = scrollY; 2941 } 2942 2943 return handled; 2944 } 2945 2946 /** 2947 * @hide 2948 */ 2949 public View getAccessibilityFocusedHost() { 2950 return mAccessibilityFocusedHost; 2951 } 2952 2953 /** 2954 * @hide 2955 */ 2956 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2957 return mAccessibilityFocusedVirtualView; 2958 } 2959 2960 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2961 // If we have a virtual view with accessibility focus we need 2962 // to clear the focus and invalidate the virtual view bounds. 2963 if (mAccessibilityFocusedVirtualView != null) { 2964 2965 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2966 View focusHost = mAccessibilityFocusedHost; 2967 2968 // Wipe the state of the current accessibility focus since 2969 // the call into the provider to clear accessibility focus 2970 // will fire an accessibility event which will end up calling 2971 // this method and we want to have clean state when this 2972 // invocation happens. 2973 mAccessibilityFocusedHost = null; 2974 mAccessibilityFocusedVirtualView = null; 2975 2976 // Clear accessibility focus on the host after clearing state since 2977 // this method may be reentrant. 2978 focusHost.clearAccessibilityFocusNoCallbacks(); 2979 2980 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2981 if (provider != null) { 2982 // Invalidate the area of the cleared accessibility focus. 2983 focusNode.getBoundsInParent(mTempRect); 2984 focusHost.invalidate(mTempRect); 2985 // Clear accessibility focus in the virtual node. 2986 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2987 focusNode.getSourceNodeId()); 2988 provider.performAction(virtualNodeId, 2989 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2990 } 2991 focusNode.recycle(); 2992 } 2993 if (mAccessibilityFocusedHost != null) { 2994 // Clear accessibility focus in the view. 2995 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2996 } 2997 2998 // Set the new focus host and node. 2999 mAccessibilityFocusedHost = view; 3000 mAccessibilityFocusedVirtualView = node; 3001 3002 if (mAttachInfo.mHardwareRenderer != null) { 3003 mAttachInfo.mHardwareRenderer.invalidateRoot(); 3004 } 3005 } 3006 3007 @Override 3008 public void requestChildFocus(View child, View focused) { 3009 if (DEBUG_INPUT_RESIZE) { 3010 Log.v(TAG, "Request child focus: focus now " + focused); 3011 } 3012 checkThread(); 3013 scheduleTraversals(); 3014 } 3015 3016 @Override 3017 public void clearChildFocus(View child) { 3018 if (DEBUG_INPUT_RESIZE) { 3019 Log.v(TAG, "Clearing child focus"); 3020 } 3021 checkThread(); 3022 scheduleTraversals(); 3023 } 3024 3025 @Override 3026 public ViewParent getParentForAccessibility() { 3027 return null; 3028 } 3029 3030 @Override 3031 public void focusableViewAvailable(View v) { 3032 checkThread(); 3033 if (mView != null) { 3034 if (!mView.hasFocus()) { 3035 v.requestFocus(); 3036 } else { 3037 // the one case where will transfer focus away from the current one 3038 // is if the current view is a view group that prefers to give focus 3039 // to its children first AND the view is a descendant of it. 3040 View focused = mView.findFocus(); 3041 if (focused instanceof ViewGroup) { 3042 ViewGroup group = (ViewGroup) focused; 3043 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3044 && isViewDescendantOf(v, focused)) { 3045 v.requestFocus(); 3046 } 3047 } 3048 } 3049 } 3050 } 3051 3052 @Override 3053 public void recomputeViewAttributes(View child) { 3054 checkThread(); 3055 if (mView == child) { 3056 mAttachInfo.mRecomputeGlobalAttributes = true; 3057 if (!mWillDrawSoon) { 3058 scheduleTraversals(); 3059 } 3060 } 3061 } 3062 3063 void dispatchDetachedFromWindow() { 3064 if (mView != null && mView.mAttachInfo != null) { 3065 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3066 mView.dispatchDetachedFromWindow(); 3067 } 3068 3069 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3070 mAccessibilityManager.removeAccessibilityStateChangeListener( 3071 mAccessibilityInteractionConnectionManager); 3072 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3073 mHighContrastTextManager); 3074 removeSendWindowContentChangedCallback(); 3075 3076 destroyHardwareRenderer(); 3077 3078 setAccessibilityFocus(null, null); 3079 3080 mView.assignParent(null); 3081 mView = null; 3082 mAttachInfo.mRootView = null; 3083 3084 mSurface.release(); 3085 3086 if (mInputQueueCallback != null && mInputQueue != null) { 3087 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3088 mInputQueue.dispose(); 3089 mInputQueueCallback = null; 3090 mInputQueue = null; 3091 } 3092 if (mInputEventReceiver != null) { 3093 mInputEventReceiver.dispose(); 3094 mInputEventReceiver = null; 3095 } 3096 try { 3097 mWindowSession.remove(mWindow); 3098 } catch (RemoteException e) { 3099 } 3100 3101 // Dispose the input channel after removing the window so the Window Manager 3102 // doesn't interpret the input channel being closed as an abnormal termination. 3103 if (mInputChannel != null) { 3104 mInputChannel.dispose(); 3105 mInputChannel = null; 3106 } 3107 3108 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3109 3110 unscheduleTraversals(); 3111 } 3112 3113 void updateConfiguration(Configuration config, boolean force) { 3114 if (DEBUG_CONFIGURATION) Log.v(TAG, 3115 "Applying new config to window " 3116 + mWindowAttributes.getTitle() 3117 + ": " + config); 3118 3119 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3120 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3121 config = new Configuration(config); 3122 ci.applyToConfiguration(mNoncompatDensity, config); 3123 } 3124 3125 synchronized (sConfigCallbacks) { 3126 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3127 sConfigCallbacks.get(i).onConfigurationChanged(config); 3128 } 3129 } 3130 if (mView != null) { 3131 // At this point the resources have been updated to 3132 // have the most recent config, whatever that is. Use 3133 // the one in them which may be newer. 3134 config = mView.getResources().getConfiguration(); 3135 if (force || mLastConfiguration.diff(config) != 0) { 3136 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3137 final int currentLayoutDirection = config.getLayoutDirection(); 3138 mLastConfiguration.setTo(config); 3139 if (lastLayoutDirection != currentLayoutDirection && 3140 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3141 mView.setLayoutDirection(currentLayoutDirection); 3142 } 3143 mView.dispatchConfigurationChanged(config); 3144 } 3145 } 3146 } 3147 3148 /** 3149 * Return true if child is an ancestor of parent, (or equal to the parent). 3150 */ 3151 public static boolean isViewDescendantOf(View child, View parent) { 3152 if (child == parent) { 3153 return true; 3154 } 3155 3156 final ViewParent theParent = child.getParent(); 3157 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3158 } 3159 3160 private static void forceLayout(View view) { 3161 view.forceLayout(); 3162 if (view instanceof ViewGroup) { 3163 ViewGroup group = (ViewGroup) view; 3164 final int count = group.getChildCount(); 3165 for (int i = 0; i < count; i++) { 3166 forceLayout(group.getChildAt(i)); 3167 } 3168 } 3169 } 3170 3171 private final static int MSG_INVALIDATE = 1; 3172 private final static int MSG_INVALIDATE_RECT = 2; 3173 private final static int MSG_DIE = 3; 3174 private final static int MSG_RESIZED = 4; 3175 private final static int MSG_RESIZED_REPORT = 5; 3176 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3177 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3178 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3179 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3180 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3181 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3182 private final static int MSG_CHECK_FOCUS = 13; 3183 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3184 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3185 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3186 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3187 private final static int MSG_UPDATE_CONFIGURATION = 18; 3188 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3189 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3190 private final static int MSG_INVALIDATE_WORLD = 22; 3191 private final static int MSG_WINDOW_MOVED = 23; 3192 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24; 3193 private final static int MSG_DISPATCH_WINDOW_SHOWN = 25; 3194 3195 final class ViewRootHandler extends Handler { 3196 @Override 3197 public String getMessageName(Message message) { 3198 switch (message.what) { 3199 case MSG_INVALIDATE: 3200 return "MSG_INVALIDATE"; 3201 case MSG_INVALIDATE_RECT: 3202 return "MSG_INVALIDATE_RECT"; 3203 case MSG_DIE: 3204 return "MSG_DIE"; 3205 case MSG_RESIZED: 3206 return "MSG_RESIZED"; 3207 case MSG_RESIZED_REPORT: 3208 return "MSG_RESIZED_REPORT"; 3209 case MSG_WINDOW_FOCUS_CHANGED: 3210 return "MSG_WINDOW_FOCUS_CHANGED"; 3211 case MSG_DISPATCH_INPUT_EVENT: 3212 return "MSG_DISPATCH_INPUT_EVENT"; 3213 case MSG_DISPATCH_APP_VISIBILITY: 3214 return "MSG_DISPATCH_APP_VISIBILITY"; 3215 case MSG_DISPATCH_GET_NEW_SURFACE: 3216 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3217 case MSG_DISPATCH_KEY_FROM_IME: 3218 return "MSG_DISPATCH_KEY_FROM_IME"; 3219 case MSG_FINISH_INPUT_CONNECTION: 3220 return "MSG_FINISH_INPUT_CONNECTION"; 3221 case MSG_CHECK_FOCUS: 3222 return "MSG_CHECK_FOCUS"; 3223 case MSG_CLOSE_SYSTEM_DIALOGS: 3224 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3225 case MSG_DISPATCH_DRAG_EVENT: 3226 return "MSG_DISPATCH_DRAG_EVENT"; 3227 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3228 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3229 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3230 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3231 case MSG_UPDATE_CONFIGURATION: 3232 return "MSG_UPDATE_CONFIGURATION"; 3233 case MSG_PROCESS_INPUT_EVENTS: 3234 return "MSG_PROCESS_INPUT_EVENTS"; 3235 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3236 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3237 case MSG_WINDOW_MOVED: 3238 return "MSG_WINDOW_MOVED"; 3239 case MSG_SYNTHESIZE_INPUT_EVENT: 3240 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3241 case MSG_DISPATCH_WINDOW_SHOWN: 3242 return "MSG_DISPATCH_WINDOW_SHOWN"; 3243 } 3244 return super.getMessageName(message); 3245 } 3246 3247 @Override 3248 public void handleMessage(Message msg) { 3249 switch (msg.what) { 3250 case MSG_INVALIDATE: 3251 ((View) msg.obj).invalidate(); 3252 break; 3253 case MSG_INVALIDATE_RECT: 3254 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3255 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3256 info.recycle(); 3257 break; 3258 case MSG_PROCESS_INPUT_EVENTS: 3259 mProcessInputEventsScheduled = false; 3260 doProcessInputEvents(); 3261 break; 3262 case MSG_DISPATCH_APP_VISIBILITY: 3263 handleAppVisibility(msg.arg1 != 0); 3264 break; 3265 case MSG_DISPATCH_GET_NEW_SURFACE: 3266 handleGetNewSurface(); 3267 break; 3268 case MSG_RESIZED: { 3269 // Recycled in the fall through... 3270 SomeArgs args = (SomeArgs) msg.obj; 3271 if (mWinFrame.equals(args.arg1) 3272 && mPendingOverscanInsets.equals(args.arg5) 3273 && mPendingContentInsets.equals(args.arg2) 3274 && mPendingStableInsets.equals(args.arg6) 3275 && mPendingVisibleInsets.equals(args.arg3) 3276 && mPendingOutsets.equals(args.arg7) 3277 && args.arg4 == null) { 3278 break; 3279 } 3280 } // fall through... 3281 case MSG_RESIZED_REPORT: 3282 if (mAdded) { 3283 SomeArgs args = (SomeArgs) msg.obj; 3284 3285 Configuration config = (Configuration) args.arg4; 3286 if (config != null) { 3287 updateConfiguration(config, false); 3288 } 3289 3290 mWinFrame.set((Rect) args.arg1); 3291 mPendingOverscanInsets.set((Rect) args.arg5); 3292 mPendingContentInsets.set((Rect) args.arg2); 3293 mPendingStableInsets.set((Rect) args.arg6); 3294 mPendingVisibleInsets.set((Rect) args.arg3); 3295 mPendingOutsets.set((Rect) args.arg7); 3296 mPendingBackDropFrame.set((Rect) args.arg8); 3297 3298 args.recycle(); 3299 3300 if (msg.what == MSG_RESIZED_REPORT) { 3301 mReportNextDraw = true; 3302 } 3303 3304 if (mView != null) { 3305 forceLayout(mView); 3306 } 3307 3308 requestLayout(); 3309 } 3310 break; 3311 case MSG_WINDOW_MOVED: 3312 if (mAdded) { 3313 final int w = mWinFrame.width(); 3314 final int h = mWinFrame.height(); 3315 final int l = msg.arg1; 3316 final int t = msg.arg2; 3317 mWinFrame.left = l; 3318 mWinFrame.right = l + w; 3319 mWinFrame.top = t; 3320 mWinFrame.bottom = t + h; 3321 3322 mPendingBackDropFrame.set(mWinFrame); 3323 3324 if (mView != null) { 3325 forceLayout(mView); 3326 } 3327 requestLayout(); 3328 } 3329 break; 3330 case MSG_WINDOW_FOCUS_CHANGED: { 3331 if (mAdded) { 3332 boolean hasWindowFocus = msg.arg1 != 0; 3333 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3334 3335 profileRendering(hasWindowFocus); 3336 3337 if (hasWindowFocus) { 3338 boolean inTouchMode = msg.arg2 != 0; 3339 ensureTouchModeLocally(inTouchMode); 3340 3341 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3342 mFullRedrawNeeded = true; 3343 try { 3344 final WindowManager.LayoutParams lp = mWindowAttributes; 3345 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3346 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3347 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 3348 } catch (OutOfResourcesException e) { 3349 Log.e(TAG, "OutOfResourcesException locking surface", e); 3350 try { 3351 if (!mWindowSession.outOfMemory(mWindow)) { 3352 Slog.w(TAG, "No processes killed for memory; killing self"); 3353 Process.killProcess(Process.myPid()); 3354 } 3355 } catch (RemoteException ex) { 3356 } 3357 // Retry in a bit. 3358 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3359 return; 3360 } 3361 } 3362 } 3363 3364 mLastWasImTarget = WindowManager.LayoutParams 3365 .mayUseInputMethod(mWindowAttributes.flags); 3366 3367 InputMethodManager imm = InputMethodManager.peekInstance(); 3368 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3369 imm.onPreWindowFocus(mView, hasWindowFocus); 3370 } 3371 if (mView != null) { 3372 mAttachInfo.mKeyDispatchState.reset(); 3373 mView.dispatchWindowFocusChanged(hasWindowFocus); 3374 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3375 } 3376 3377 // Note: must be done after the focus change callbacks, 3378 // so all of the view state is set up correctly. 3379 if (hasWindowFocus) { 3380 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3381 imm.onPostWindowFocus(mView, mView.findFocus(), 3382 mWindowAttributes.softInputMode, 3383 !mHasHadWindowFocus, mWindowAttributes.flags); 3384 } 3385 // Clear the forward bit. We can just do this directly, since 3386 // the window manager doesn't care about it. 3387 mWindowAttributes.softInputMode &= 3388 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3389 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3390 .softInputMode &= 3391 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3392 mHasHadWindowFocus = true; 3393 } 3394 } 3395 } break; 3396 case MSG_DIE: 3397 doDie(); 3398 break; 3399 case MSG_DISPATCH_INPUT_EVENT: { 3400 SomeArgs args = (SomeArgs)msg.obj; 3401 InputEvent event = (InputEvent)args.arg1; 3402 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3403 enqueueInputEvent(event, receiver, 0, true); 3404 args.recycle(); 3405 } break; 3406 case MSG_SYNTHESIZE_INPUT_EVENT: { 3407 InputEvent event = (InputEvent)msg.obj; 3408 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3409 } break; 3410 case MSG_DISPATCH_KEY_FROM_IME: { 3411 if (LOCAL_LOGV) Log.v( 3412 TAG, "Dispatching key " 3413 + msg.obj + " from IME to " + mView); 3414 KeyEvent event = (KeyEvent)msg.obj; 3415 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3416 // The IME is trying to say this event is from the 3417 // system! Bad bad bad! 3418 //noinspection UnusedAssignment 3419 event = KeyEvent.changeFlags(event, event.getFlags() & 3420 ~KeyEvent.FLAG_FROM_SYSTEM); 3421 } 3422 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3423 } break; 3424 case MSG_FINISH_INPUT_CONNECTION: { 3425 InputMethodManager imm = InputMethodManager.peekInstance(); 3426 if (imm != null) { 3427 imm.reportFinishInputConnection((InputConnection)msg.obj); 3428 } 3429 } break; 3430 case MSG_CHECK_FOCUS: { 3431 InputMethodManager imm = InputMethodManager.peekInstance(); 3432 if (imm != null) { 3433 imm.checkFocus(); 3434 } 3435 } break; 3436 case MSG_CLOSE_SYSTEM_DIALOGS: { 3437 if (mView != null) { 3438 mView.onCloseSystemDialogs((String)msg.obj); 3439 } 3440 } break; 3441 case MSG_DISPATCH_DRAG_EVENT: 3442 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3443 DragEvent event = (DragEvent)msg.obj; 3444 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3445 handleDragEvent(event); 3446 } break; 3447 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3448 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3449 } break; 3450 case MSG_UPDATE_CONFIGURATION: { 3451 Configuration config = (Configuration)msg.obj; 3452 if (config.isOtherSeqNewer(mLastConfiguration)) { 3453 config = mLastConfiguration; 3454 } 3455 updateConfiguration(config, false); 3456 } break; 3457 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3458 setAccessibilityFocus(null, null); 3459 } break; 3460 case MSG_INVALIDATE_WORLD: { 3461 if (mView != null) { 3462 invalidateWorld(mView); 3463 } 3464 } break; 3465 case MSG_DISPATCH_WINDOW_SHOWN: { 3466 handleDispatchWindowShown(); 3467 } 3468 } 3469 } 3470 } 3471 3472 final ViewRootHandler mHandler = new ViewRootHandler(); 3473 3474 /** 3475 * Something in the current window tells us we need to change the touch mode. For 3476 * example, we are not in touch mode, and the user touches the screen. 3477 * 3478 * If the touch mode has changed, tell the window manager, and handle it locally. 3479 * 3480 * @param inTouchMode Whether we want to be in touch mode. 3481 * @return True if the touch mode changed and focus changed was changed as a result 3482 */ 3483 boolean ensureTouchMode(boolean inTouchMode) { 3484 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3485 + "touch mode is " + mAttachInfo.mInTouchMode); 3486 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3487 3488 // tell the window manager 3489 try { 3490 if (!isInLocalFocusMode()) { 3491 mWindowSession.setInTouchMode(inTouchMode); 3492 } 3493 } catch (RemoteException e) { 3494 throw new RuntimeException(e); 3495 } 3496 3497 // handle the change 3498 return ensureTouchModeLocally(inTouchMode); 3499 } 3500 3501 /** 3502 * Ensure that the touch mode for this window is set, and if it is changing, 3503 * take the appropriate action. 3504 * @param inTouchMode Whether we want to be in touch mode. 3505 * @return True if the touch mode changed and focus changed was changed as a result 3506 */ 3507 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3508 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3509 + "touch mode is " + mAttachInfo.mInTouchMode); 3510 3511 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3512 3513 mAttachInfo.mInTouchMode = inTouchMode; 3514 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3515 3516 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3517 } 3518 3519 private boolean enterTouchMode() { 3520 if (mView != null && mView.hasFocus()) { 3521 // note: not relying on mFocusedView here because this could 3522 // be when the window is first being added, and mFocused isn't 3523 // set yet. 3524 final View focused = mView.findFocus(); 3525 if (focused != null && !focused.isFocusableInTouchMode()) { 3526 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3527 if (ancestorToTakeFocus != null) { 3528 // there is an ancestor that wants focus after its 3529 // descendants that is focusable in touch mode.. give it 3530 // focus 3531 return ancestorToTakeFocus.requestFocus(); 3532 } else { 3533 // There's nothing to focus. Clear and propagate through the 3534 // hierarchy, but don't attempt to place new focus. 3535 focused.clearFocusInternal(null, true, false); 3536 return true; 3537 } 3538 } 3539 } 3540 return false; 3541 } 3542 3543 /** 3544 * Find an ancestor of focused that wants focus after its descendants and is 3545 * focusable in touch mode. 3546 * @param focused The currently focused view. 3547 * @return An appropriate view, or null if no such view exists. 3548 */ 3549 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3550 ViewParent parent = focused.getParent(); 3551 while (parent instanceof ViewGroup) { 3552 final ViewGroup vgParent = (ViewGroup) parent; 3553 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3554 && vgParent.isFocusableInTouchMode()) { 3555 return vgParent; 3556 } 3557 if (vgParent.isRootNamespace()) { 3558 return null; 3559 } else { 3560 parent = vgParent.getParent(); 3561 } 3562 } 3563 return null; 3564 } 3565 3566 private boolean leaveTouchMode() { 3567 if (mView != null) { 3568 if (mView.hasFocus()) { 3569 View focusedView = mView.findFocus(); 3570 if (!(focusedView instanceof ViewGroup)) { 3571 // some view has focus, let it keep it 3572 return false; 3573 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3574 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3575 // some view group has focus, and doesn't prefer its children 3576 // over itself for focus, so let them keep it. 3577 return false; 3578 } 3579 } 3580 3581 // find the best view to give focus to in this brave new non-touch-mode 3582 // world 3583 final View focused = focusSearch(null, View.FOCUS_DOWN); 3584 if (focused != null) { 3585 return focused.requestFocus(View.FOCUS_DOWN); 3586 } 3587 } 3588 return false; 3589 } 3590 3591 /** 3592 * Base class for implementing a stage in the chain of responsibility 3593 * for processing input events. 3594 * <p> 3595 * Events are delivered to the stage by the {@link #deliver} method. The stage 3596 * then has the choice of finishing the event or forwarding it to the next stage. 3597 * </p> 3598 */ 3599 abstract class InputStage { 3600 private final InputStage mNext; 3601 3602 protected static final int FORWARD = 0; 3603 protected static final int FINISH_HANDLED = 1; 3604 protected static final int FINISH_NOT_HANDLED = 2; 3605 3606 /** 3607 * Creates an input stage. 3608 * @param next The next stage to which events should be forwarded. 3609 */ 3610 public InputStage(InputStage next) { 3611 mNext = next; 3612 } 3613 3614 /** 3615 * Delivers an event to be processed. 3616 */ 3617 public final void deliver(QueuedInputEvent q) { 3618 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3619 forward(q); 3620 } else if (shouldDropInputEvent(q)) { 3621 finish(q, false); 3622 } else { 3623 apply(q, onProcess(q)); 3624 } 3625 } 3626 3627 /** 3628 * Marks the the input event as finished then forwards it to the next stage. 3629 */ 3630 protected void finish(QueuedInputEvent q, boolean handled) { 3631 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3632 if (handled) { 3633 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3634 } 3635 forward(q); 3636 } 3637 3638 /** 3639 * Forwards the event to the next stage. 3640 */ 3641 protected void forward(QueuedInputEvent q) { 3642 onDeliverToNext(q); 3643 } 3644 3645 /** 3646 * Applies a result code from {@link #onProcess} to the specified event. 3647 */ 3648 protected void apply(QueuedInputEvent q, int result) { 3649 if (result == FORWARD) { 3650 forward(q); 3651 } else if (result == FINISH_HANDLED) { 3652 finish(q, true); 3653 } else if (result == FINISH_NOT_HANDLED) { 3654 finish(q, false); 3655 } else { 3656 throw new IllegalArgumentException("Invalid result: " + result); 3657 } 3658 } 3659 3660 /** 3661 * Called when an event is ready to be processed. 3662 * @return A result code indicating how the event was handled. 3663 */ 3664 protected int onProcess(QueuedInputEvent q) { 3665 return FORWARD; 3666 } 3667 3668 /** 3669 * Called when an event is being delivered to the next stage. 3670 */ 3671 protected void onDeliverToNext(QueuedInputEvent q) { 3672 if (DEBUG_INPUT_STAGES) { 3673 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3674 } 3675 if (mNext != null) { 3676 mNext.deliver(q); 3677 } else { 3678 finishInputEvent(q); 3679 } 3680 } 3681 3682 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3683 if (mView == null || !mAdded) { 3684 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3685 return true; 3686 } else if ((!mAttachInfo.mHasWindowFocus 3687 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped 3688 || (mPausedForTransition && !isBack(q.mEvent))) { 3689 // This is a focus event and the window doesn't currently have input focus or 3690 // has stopped. This could be an event that came back from the previous stage 3691 // but the window has lost focus or stopped in the meantime. 3692 if (isTerminalInputEvent(q.mEvent)) { 3693 // Don't drop terminal input events, however mark them as canceled. 3694 q.mEvent.cancel(); 3695 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3696 return false; 3697 } 3698 3699 // Drop non-terminal input events. 3700 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3701 return true; 3702 } 3703 return false; 3704 } 3705 3706 void dump(String prefix, PrintWriter writer) { 3707 if (mNext != null) { 3708 mNext.dump(prefix, writer); 3709 } 3710 } 3711 3712 private boolean isBack(InputEvent event) { 3713 if (event instanceof KeyEvent) { 3714 return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK; 3715 } else { 3716 return false; 3717 } 3718 } 3719 } 3720 3721 /** 3722 * Base class for implementing an input pipeline stage that supports 3723 * asynchronous and out-of-order processing of input events. 3724 * <p> 3725 * In addition to what a normal input stage can do, an asynchronous 3726 * input stage may also defer an input event that has been delivered to it 3727 * and finish or forward it later. 3728 * </p> 3729 */ 3730 abstract class AsyncInputStage extends InputStage { 3731 private final String mTraceCounter; 3732 3733 private QueuedInputEvent mQueueHead; 3734 private QueuedInputEvent mQueueTail; 3735 private int mQueueLength; 3736 3737 protected static final int DEFER = 3; 3738 3739 /** 3740 * Creates an asynchronous input stage. 3741 * @param next The next stage to which events should be forwarded. 3742 * @param traceCounter The name of a counter to record the size of 3743 * the queue of pending events. 3744 */ 3745 public AsyncInputStage(InputStage next, String traceCounter) { 3746 super(next); 3747 mTraceCounter = traceCounter; 3748 } 3749 3750 /** 3751 * Marks the event as deferred, which is to say that it will be handled 3752 * asynchronously. The caller is responsible for calling {@link #forward} 3753 * or {@link #finish} later when it is done handling the event. 3754 */ 3755 protected void defer(QueuedInputEvent q) { 3756 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3757 enqueue(q); 3758 } 3759 3760 @Override 3761 protected void forward(QueuedInputEvent q) { 3762 // Clear the deferred flag. 3763 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3764 3765 // Fast path if the queue is empty. 3766 QueuedInputEvent curr = mQueueHead; 3767 if (curr == null) { 3768 super.forward(q); 3769 return; 3770 } 3771 3772 // Determine whether the event must be serialized behind any others 3773 // before it can be delivered to the next stage. This is done because 3774 // deferred events might be handled out of order by the stage. 3775 final int deviceId = q.mEvent.getDeviceId(); 3776 QueuedInputEvent prev = null; 3777 boolean blocked = false; 3778 while (curr != null && curr != q) { 3779 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3780 blocked = true; 3781 } 3782 prev = curr; 3783 curr = curr.mNext; 3784 } 3785 3786 // If the event is blocked, then leave it in the queue to be delivered later. 3787 // Note that the event might not yet be in the queue if it was not previously 3788 // deferred so we will enqueue it if needed. 3789 if (blocked) { 3790 if (curr == null) { 3791 enqueue(q); 3792 } 3793 return; 3794 } 3795 3796 // The event is not blocked. Deliver it immediately. 3797 if (curr != null) { 3798 curr = curr.mNext; 3799 dequeue(q, prev); 3800 } 3801 super.forward(q); 3802 3803 // Dequeuing this event may have unblocked successors. Deliver them. 3804 while (curr != null) { 3805 if (deviceId == curr.mEvent.getDeviceId()) { 3806 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3807 break; 3808 } 3809 QueuedInputEvent next = curr.mNext; 3810 dequeue(curr, prev); 3811 super.forward(curr); 3812 curr = next; 3813 } else { 3814 prev = curr; 3815 curr = curr.mNext; 3816 } 3817 } 3818 } 3819 3820 @Override 3821 protected void apply(QueuedInputEvent q, int result) { 3822 if (result == DEFER) { 3823 defer(q); 3824 } else { 3825 super.apply(q, result); 3826 } 3827 } 3828 3829 private void enqueue(QueuedInputEvent q) { 3830 if (mQueueTail == null) { 3831 mQueueHead = q; 3832 mQueueTail = q; 3833 } else { 3834 mQueueTail.mNext = q; 3835 mQueueTail = q; 3836 } 3837 3838 mQueueLength += 1; 3839 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3840 } 3841 3842 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3843 if (prev == null) { 3844 mQueueHead = q.mNext; 3845 } else { 3846 prev.mNext = q.mNext; 3847 } 3848 if (mQueueTail == q) { 3849 mQueueTail = prev; 3850 } 3851 q.mNext = null; 3852 3853 mQueueLength -= 1; 3854 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3855 } 3856 3857 @Override 3858 void dump(String prefix, PrintWriter writer) { 3859 writer.print(prefix); 3860 writer.print(getClass().getName()); 3861 writer.print(": mQueueLength="); 3862 writer.println(mQueueLength); 3863 3864 super.dump(prefix, writer); 3865 } 3866 } 3867 3868 /** 3869 * Delivers pre-ime input events to a native activity. 3870 * Does not support pointer events. 3871 */ 3872 final class NativePreImeInputStage extends AsyncInputStage 3873 implements InputQueue.FinishedInputEventCallback { 3874 public NativePreImeInputStage(InputStage next, String traceCounter) { 3875 super(next, traceCounter); 3876 } 3877 3878 @Override 3879 protected int onProcess(QueuedInputEvent q) { 3880 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3881 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3882 return DEFER; 3883 } 3884 return FORWARD; 3885 } 3886 3887 @Override 3888 public void onFinishedInputEvent(Object token, boolean handled) { 3889 QueuedInputEvent q = (QueuedInputEvent)token; 3890 if (handled) { 3891 finish(q, true); 3892 return; 3893 } 3894 forward(q); 3895 } 3896 } 3897 3898 /** 3899 * Delivers pre-ime input events to the view hierarchy. 3900 * Does not support pointer events. 3901 */ 3902 final class ViewPreImeInputStage extends InputStage { 3903 public ViewPreImeInputStage(InputStage next) { 3904 super(next); 3905 } 3906 3907 @Override 3908 protected int onProcess(QueuedInputEvent q) { 3909 if (q.mEvent instanceof KeyEvent) { 3910 return processKeyEvent(q); 3911 } 3912 return FORWARD; 3913 } 3914 3915 private int processKeyEvent(QueuedInputEvent q) { 3916 final KeyEvent event = (KeyEvent)q.mEvent; 3917 if (mView.dispatchKeyEventPreIme(event)) { 3918 return FINISH_HANDLED; 3919 } 3920 return FORWARD; 3921 } 3922 } 3923 3924 /** 3925 * Delivers input events to the ime. 3926 * Does not support pointer events. 3927 */ 3928 final class ImeInputStage extends AsyncInputStage 3929 implements InputMethodManager.FinishedInputEventCallback { 3930 public ImeInputStage(InputStage next, String traceCounter) { 3931 super(next, traceCounter); 3932 } 3933 3934 @Override 3935 protected int onProcess(QueuedInputEvent q) { 3936 if (mLastWasImTarget && !isInLocalFocusMode()) { 3937 InputMethodManager imm = InputMethodManager.peekInstance(); 3938 if (imm != null) { 3939 final InputEvent event = q.mEvent; 3940 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3941 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3942 if (result == InputMethodManager.DISPATCH_HANDLED) { 3943 return FINISH_HANDLED; 3944 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3945 // The IME could not handle it, so skip along to the next InputStage 3946 return FORWARD; 3947 } else { 3948 return DEFER; // callback will be invoked later 3949 } 3950 } 3951 } 3952 return FORWARD; 3953 } 3954 3955 @Override 3956 public void onFinishedInputEvent(Object token, boolean handled) { 3957 QueuedInputEvent q = (QueuedInputEvent)token; 3958 if (handled) { 3959 finish(q, true); 3960 return; 3961 } 3962 forward(q); 3963 } 3964 } 3965 3966 /** 3967 * Performs early processing of post-ime input events. 3968 */ 3969 final class EarlyPostImeInputStage extends InputStage { 3970 public EarlyPostImeInputStage(InputStage next) { 3971 super(next); 3972 } 3973 3974 @Override 3975 protected int onProcess(QueuedInputEvent q) { 3976 if (q.mEvent instanceof KeyEvent) { 3977 return processKeyEvent(q); 3978 } else { 3979 final int source = q.mEvent.getSource(); 3980 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3981 return processPointerEvent(q); 3982 } 3983 } 3984 return FORWARD; 3985 } 3986 3987 private int processKeyEvent(QueuedInputEvent q) { 3988 final KeyEvent event = (KeyEvent)q.mEvent; 3989 3990 // If the key's purpose is to exit touch mode then we consume it 3991 // and consider it handled. 3992 if (checkForLeavingTouchModeAndConsume(event)) { 3993 return FINISH_HANDLED; 3994 } 3995 3996 // Make sure the fallback event policy sees all keys that will be 3997 // delivered to the view hierarchy. 3998 mFallbackEventHandler.preDispatchKeyEvent(event); 3999 return FORWARD; 4000 } 4001 4002 private int processPointerEvent(QueuedInputEvent q) { 4003 final MotionEvent event = (MotionEvent)q.mEvent; 4004 4005 // Translate the pointer event for compatibility, if needed. 4006 if (mTranslator != null) { 4007 mTranslator.translateEventInScreenToAppWindow(event); 4008 } 4009 4010 // Enter touch mode on down or scroll. 4011 final int action = event.getAction(); 4012 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 4013 ensureTouchMode(true); 4014 } 4015 4016 // Offset the scroll position. 4017 if (mCurScrollY != 0) { 4018 event.offsetLocation(0, mCurScrollY); 4019 } 4020 4021 // Remember the touch position for possible drag-initiation. 4022 if (event.isTouchEvent()) { 4023 mLastTouchPoint.x = event.getRawX(); 4024 mLastTouchPoint.y = event.getRawY(); 4025 } 4026 return FORWARD; 4027 } 4028 } 4029 4030 /** 4031 * Delivers post-ime input events to a native activity. 4032 */ 4033 final class NativePostImeInputStage extends AsyncInputStage 4034 implements InputQueue.FinishedInputEventCallback { 4035 public NativePostImeInputStage(InputStage next, String traceCounter) { 4036 super(next, traceCounter); 4037 } 4038 4039 @Override 4040 protected int onProcess(QueuedInputEvent q) { 4041 if (mInputQueue != null) { 4042 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 4043 return DEFER; 4044 } 4045 return FORWARD; 4046 } 4047 4048 @Override 4049 public void onFinishedInputEvent(Object token, boolean handled) { 4050 QueuedInputEvent q = (QueuedInputEvent)token; 4051 if (handled) { 4052 finish(q, true); 4053 return; 4054 } 4055 forward(q); 4056 } 4057 } 4058 4059 /** 4060 * Delivers post-ime input events to the view hierarchy. 4061 */ 4062 final class ViewPostImeInputStage extends InputStage { 4063 public ViewPostImeInputStage(InputStage next) { 4064 super(next); 4065 } 4066 4067 @Override 4068 protected int onProcess(QueuedInputEvent q) { 4069 if (q.mEvent instanceof KeyEvent) { 4070 return processKeyEvent(q); 4071 } else { 4072 final int source = q.mEvent.getSource(); 4073 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4074 return processPointerEvent(q); 4075 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4076 return processTrackballEvent(q); 4077 } else { 4078 return processGenericMotionEvent(q); 4079 } 4080 } 4081 } 4082 4083 @Override 4084 protected void onDeliverToNext(QueuedInputEvent q) { 4085 if (mUnbufferedInputDispatch 4086 && q.mEvent instanceof MotionEvent 4087 && ((MotionEvent)q.mEvent).isTouchEvent() 4088 && isTerminalInputEvent(q.mEvent)) { 4089 mUnbufferedInputDispatch = false; 4090 scheduleConsumeBatchedInput(); 4091 } 4092 super.onDeliverToNext(q); 4093 } 4094 4095 private int processKeyEvent(QueuedInputEvent q) { 4096 final KeyEvent event = (KeyEvent)q.mEvent; 4097 4098 // Deliver the key to the view hierarchy. 4099 if (mView.dispatchKeyEvent(event)) { 4100 return FINISH_HANDLED; 4101 } 4102 4103 if (shouldDropInputEvent(q)) { 4104 return FINISH_NOT_HANDLED; 4105 } 4106 4107 // If the Control modifier is held, try to interpret the key as a shortcut. 4108 if (event.getAction() == KeyEvent.ACTION_DOWN 4109 && event.isCtrlPressed() 4110 && event.getRepeatCount() == 0 4111 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4112 if (mView.dispatchKeyShortcutEvent(event)) { 4113 return FINISH_HANDLED; 4114 } 4115 if (shouldDropInputEvent(q)) { 4116 return FINISH_NOT_HANDLED; 4117 } 4118 } 4119 4120 // Apply the fallback event policy. 4121 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4122 return FINISH_HANDLED; 4123 } 4124 if (shouldDropInputEvent(q)) { 4125 return FINISH_NOT_HANDLED; 4126 } 4127 4128 // Handle automatic focus changes. 4129 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4130 int direction = 0; 4131 switch (event.getKeyCode()) { 4132 case KeyEvent.KEYCODE_DPAD_LEFT: 4133 if (event.hasNoModifiers()) { 4134 direction = View.FOCUS_LEFT; 4135 } 4136 break; 4137 case KeyEvent.KEYCODE_DPAD_RIGHT: 4138 if (event.hasNoModifiers()) { 4139 direction = View.FOCUS_RIGHT; 4140 } 4141 break; 4142 case KeyEvent.KEYCODE_DPAD_UP: 4143 if (event.hasNoModifiers()) { 4144 direction = View.FOCUS_UP; 4145 } 4146 break; 4147 case KeyEvent.KEYCODE_DPAD_DOWN: 4148 if (event.hasNoModifiers()) { 4149 direction = View.FOCUS_DOWN; 4150 } 4151 break; 4152 case KeyEvent.KEYCODE_TAB: 4153 if (event.hasNoModifiers()) { 4154 direction = View.FOCUS_FORWARD; 4155 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4156 direction = View.FOCUS_BACKWARD; 4157 } 4158 break; 4159 } 4160 if (direction != 0) { 4161 View focused = mView.findFocus(); 4162 if (focused != null) { 4163 View v = focused.focusSearch(direction); 4164 if (v != null && v != focused) { 4165 // do the math the get the interesting rect 4166 // of previous focused into the coord system of 4167 // newly focused view 4168 focused.getFocusedRect(mTempRect); 4169 if (mView instanceof ViewGroup) { 4170 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4171 focused, mTempRect); 4172 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4173 v, mTempRect); 4174 } 4175 if (v.requestFocus(direction, mTempRect)) { 4176 playSoundEffect(SoundEffectConstants 4177 .getContantForFocusDirection(direction)); 4178 return FINISH_HANDLED; 4179 } 4180 } 4181 4182 // Give the focused view a last chance to handle the dpad key. 4183 if (mView.dispatchUnhandledMove(focused, direction)) { 4184 return FINISH_HANDLED; 4185 } 4186 } else { 4187 // find the best view to give focus to in this non-touch-mode with no-focus 4188 View v = focusSearch(null, direction); 4189 if (v != null && v.requestFocus(direction)) { 4190 return FINISH_HANDLED; 4191 } 4192 } 4193 } 4194 } 4195 return FORWARD; 4196 } 4197 4198 private int processPointerEvent(QueuedInputEvent q) { 4199 final MotionEvent event = (MotionEvent)q.mEvent; 4200 4201 if (event.getPointerCount() == 1 4202 && event.isFromSource(InputDevice.SOURCE_MOUSE)) { 4203 if (event.getActionMasked() == MotionEvent.ACTION_HOVER_ENTER 4204 || event.getActionMasked() == MotionEvent.ACTION_HOVER_EXIT) { 4205 // Other apps or the window manager may change the icon shape outside of 4206 // this app, therefore the icon shape has to be reset on enter/exit event. 4207 mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 4208 } 4209 4210 final float x = event.getX(); 4211 final float y = event.getY(); 4212 if (event.getActionMasked() != MotionEvent.ACTION_HOVER_EXIT 4213 && x >= 0 && x < mView.getWidth() && y >= 0 && y < mView.getHeight()) { 4214 PointerIcon pointerIcon = mView.getPointerIcon(event, x, y); 4215 int pointerShape = (pointerIcon != null) ? 4216 pointerIcon.getStyle() : PointerIcon.STYLE_DEFAULT; 4217 4218 final InputDevice inputDevice = event.getDevice(); 4219 if (inputDevice != null) { 4220 if (mPointerIconShape != pointerShape) { 4221 mPointerIconShape = pointerShape; 4222 if (mPointerIconShape != PointerIcon.STYLE_CUSTOM) { 4223 mCustomPointerIcon = null; 4224 inputDevice.setPointerShape(pointerShape); 4225 } 4226 } 4227 if (mPointerIconShape == PointerIcon.STYLE_CUSTOM && 4228 !pointerIcon.equals(mCustomPointerIcon)) { 4229 mCustomPointerIcon = pointerIcon; 4230 inputDevice.setCustomPointerIcon(mCustomPointerIcon); 4231 } 4232 } 4233 } else if (event.getActionMasked() == MotionEvent.ACTION_HOVER_MOVE) { 4234 mPointerIconShape = PointerIcon.STYLE_NOT_SPECIFIED; 4235 } 4236 } 4237 4238 mAttachInfo.mUnbufferedDispatchRequested = false; 4239 boolean handled = mView.dispatchPointerEvent(event); 4240 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4241 mUnbufferedInputDispatch = true; 4242 if (mConsumeBatchedInputScheduled) { 4243 scheduleConsumeBatchedInputImmediately(); 4244 } 4245 } 4246 return handled ? FINISH_HANDLED : FORWARD; 4247 } 4248 4249 private int processTrackballEvent(QueuedInputEvent q) { 4250 final MotionEvent event = (MotionEvent)q.mEvent; 4251 4252 if (mView.dispatchTrackballEvent(event)) { 4253 return FINISH_HANDLED; 4254 } 4255 return FORWARD; 4256 } 4257 4258 private int processGenericMotionEvent(QueuedInputEvent q) { 4259 final MotionEvent event = (MotionEvent)q.mEvent; 4260 4261 // Deliver the event to the view. 4262 if (mView.dispatchGenericMotionEvent(event)) { 4263 return FINISH_HANDLED; 4264 } 4265 return FORWARD; 4266 } 4267 } 4268 4269 /** 4270 * Performs synthesis of new input events from unhandled input events. 4271 */ 4272 final class SyntheticInputStage extends InputStage { 4273 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4274 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4275 private final SyntheticTouchNavigationHandler mTouchNavigation = 4276 new SyntheticTouchNavigationHandler(); 4277 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4278 4279 public SyntheticInputStage() { 4280 super(null); 4281 } 4282 4283 @Override 4284 protected int onProcess(QueuedInputEvent q) { 4285 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4286 if (q.mEvent instanceof MotionEvent) { 4287 final MotionEvent event = (MotionEvent)q.mEvent; 4288 final int source = event.getSource(); 4289 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4290 mTrackball.process(event); 4291 return FINISH_HANDLED; 4292 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4293 mJoystick.process(event); 4294 return FINISH_HANDLED; 4295 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4296 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4297 mTouchNavigation.process(event); 4298 return FINISH_HANDLED; 4299 } 4300 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4301 mKeyboard.process((KeyEvent)q.mEvent); 4302 return FINISH_HANDLED; 4303 } 4304 4305 return FORWARD; 4306 } 4307 4308 @Override 4309 protected void onDeliverToNext(QueuedInputEvent q) { 4310 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4311 // Cancel related synthetic events if any prior stage has handled the event. 4312 if (q.mEvent instanceof MotionEvent) { 4313 final MotionEvent event = (MotionEvent)q.mEvent; 4314 final int source = event.getSource(); 4315 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4316 mTrackball.cancel(event); 4317 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4318 mJoystick.cancel(event); 4319 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4320 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4321 mTouchNavigation.cancel(event); 4322 } 4323 } 4324 } 4325 super.onDeliverToNext(q); 4326 } 4327 } 4328 4329 /** 4330 * Creates dpad events from unhandled trackball movements. 4331 */ 4332 final class SyntheticTrackballHandler { 4333 private final TrackballAxis mX = new TrackballAxis(); 4334 private final TrackballAxis mY = new TrackballAxis(); 4335 private long mLastTime; 4336 4337 public void process(MotionEvent event) { 4338 // Translate the trackball event into DPAD keys and try to deliver those. 4339 long curTime = SystemClock.uptimeMillis(); 4340 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4341 // It has been too long since the last movement, 4342 // so restart at the beginning. 4343 mX.reset(0); 4344 mY.reset(0); 4345 mLastTime = curTime; 4346 } 4347 4348 final int action = event.getAction(); 4349 final int metaState = event.getMetaState(); 4350 switch (action) { 4351 case MotionEvent.ACTION_DOWN: 4352 mX.reset(2); 4353 mY.reset(2); 4354 enqueueInputEvent(new KeyEvent(curTime, curTime, 4355 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4356 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4357 InputDevice.SOURCE_KEYBOARD)); 4358 break; 4359 case MotionEvent.ACTION_UP: 4360 mX.reset(2); 4361 mY.reset(2); 4362 enqueueInputEvent(new KeyEvent(curTime, curTime, 4363 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4364 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4365 InputDevice.SOURCE_KEYBOARD)); 4366 break; 4367 } 4368 4369 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4370 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4371 + " move=" + event.getX() 4372 + " / Y=" + mY.position + " step=" 4373 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4374 + " move=" + event.getY()); 4375 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4376 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4377 4378 // Generate DPAD events based on the trackball movement. 4379 // We pick the axis that has moved the most as the direction of 4380 // the DPAD. When we generate DPAD events for one axis, then the 4381 // other axis is reset -- we don't want to perform DPAD jumps due 4382 // to slight movements in the trackball when making major movements 4383 // along the other axis. 4384 int keycode = 0; 4385 int movement = 0; 4386 float accel = 1; 4387 if (xOff > yOff) { 4388 movement = mX.generate(); 4389 if (movement != 0) { 4390 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4391 : KeyEvent.KEYCODE_DPAD_LEFT; 4392 accel = mX.acceleration; 4393 mY.reset(2); 4394 } 4395 } else if (yOff > 0) { 4396 movement = mY.generate(); 4397 if (movement != 0) { 4398 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4399 : KeyEvent.KEYCODE_DPAD_UP; 4400 accel = mY.acceleration; 4401 mX.reset(2); 4402 } 4403 } 4404 4405 if (keycode != 0) { 4406 if (movement < 0) movement = -movement; 4407 int accelMovement = (int)(movement * accel); 4408 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4409 + " accelMovement=" + accelMovement 4410 + " accel=" + accel); 4411 if (accelMovement > movement) { 4412 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4413 + keycode); 4414 movement--; 4415 int repeatCount = accelMovement - movement; 4416 enqueueInputEvent(new KeyEvent(curTime, curTime, 4417 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4418 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4419 InputDevice.SOURCE_KEYBOARD)); 4420 } 4421 while (movement > 0) { 4422 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4423 + keycode); 4424 movement--; 4425 curTime = SystemClock.uptimeMillis(); 4426 enqueueInputEvent(new KeyEvent(curTime, curTime, 4427 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4428 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4429 InputDevice.SOURCE_KEYBOARD)); 4430 enqueueInputEvent(new KeyEvent(curTime, curTime, 4431 KeyEvent.ACTION_UP, keycode, 0, metaState, 4432 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4433 InputDevice.SOURCE_KEYBOARD)); 4434 } 4435 mLastTime = curTime; 4436 } 4437 } 4438 4439 public void cancel(MotionEvent event) { 4440 mLastTime = Integer.MIN_VALUE; 4441 4442 // If we reach this, we consumed a trackball event. 4443 // Because we will not translate the trackball event into a key event, 4444 // touch mode will not exit, so we exit touch mode here. 4445 if (mView != null && mAdded) { 4446 ensureTouchMode(false); 4447 } 4448 } 4449 } 4450 4451 /** 4452 * Maintains state information for a single trackball axis, generating 4453 * discrete (DPAD) movements based on raw trackball motion. 4454 */ 4455 static final class TrackballAxis { 4456 /** 4457 * The maximum amount of acceleration we will apply. 4458 */ 4459 static final float MAX_ACCELERATION = 20; 4460 4461 /** 4462 * The maximum amount of time (in milliseconds) between events in order 4463 * for us to consider the user to be doing fast trackball movements, 4464 * and thus apply an acceleration. 4465 */ 4466 static final long FAST_MOVE_TIME = 150; 4467 4468 /** 4469 * Scaling factor to the time (in milliseconds) between events to how 4470 * much to multiple/divide the current acceleration. When movement 4471 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4472 * FAST_MOVE_TIME it divides it. 4473 */ 4474 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4475 4476 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4477 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4478 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4479 4480 float position; 4481 float acceleration = 1; 4482 long lastMoveTime = 0; 4483 int step; 4484 int dir; 4485 int nonAccelMovement; 4486 4487 void reset(int _step) { 4488 position = 0; 4489 acceleration = 1; 4490 lastMoveTime = 0; 4491 step = _step; 4492 dir = 0; 4493 } 4494 4495 /** 4496 * Add trackball movement into the state. If the direction of movement 4497 * has been reversed, the state is reset before adding the 4498 * movement (so that you don't have to compensate for any previously 4499 * collected movement before see the result of the movement in the 4500 * new direction). 4501 * 4502 * @return Returns the absolute value of the amount of movement 4503 * collected so far. 4504 */ 4505 float collect(float off, long time, String axis) { 4506 long normTime; 4507 if (off > 0) { 4508 normTime = (long)(off * FAST_MOVE_TIME); 4509 if (dir < 0) { 4510 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4511 position = 0; 4512 step = 0; 4513 acceleration = 1; 4514 lastMoveTime = 0; 4515 } 4516 dir = 1; 4517 } else if (off < 0) { 4518 normTime = (long)((-off) * FAST_MOVE_TIME); 4519 if (dir > 0) { 4520 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4521 position = 0; 4522 step = 0; 4523 acceleration = 1; 4524 lastMoveTime = 0; 4525 } 4526 dir = -1; 4527 } else { 4528 normTime = 0; 4529 } 4530 4531 // The number of milliseconds between each movement that is 4532 // considered "normal" and will not result in any acceleration 4533 // or deceleration, scaled by the offset we have here. 4534 if (normTime > 0) { 4535 long delta = time - lastMoveTime; 4536 lastMoveTime = time; 4537 float acc = acceleration; 4538 if (delta < normTime) { 4539 // The user is scrolling rapidly, so increase acceleration. 4540 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4541 if (scale > 1) acc *= scale; 4542 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4543 + off + " normTime=" + normTime + " delta=" + delta 4544 + " scale=" + scale + " acc=" + acc); 4545 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4546 } else { 4547 // The user is scrolling slowly, so decrease acceleration. 4548 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4549 if (scale > 1) acc /= scale; 4550 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4551 + off + " normTime=" + normTime + " delta=" + delta 4552 + " scale=" + scale + " acc=" + acc); 4553 acceleration = acc > 1 ? acc : 1; 4554 } 4555 } 4556 position += off; 4557 return Math.abs(position); 4558 } 4559 4560 /** 4561 * Generate the number of discrete movement events appropriate for 4562 * the currently collected trackball movement. 4563 * 4564 * @return Returns the number of discrete movements, either positive 4565 * or negative, or 0 if there is not enough trackball movement yet 4566 * for a discrete movement. 4567 */ 4568 int generate() { 4569 int movement = 0; 4570 nonAccelMovement = 0; 4571 do { 4572 final int dir = position >= 0 ? 1 : -1; 4573 switch (step) { 4574 // If we are going to execute the first step, then we want 4575 // to do this as soon as possible instead of waiting for 4576 // a full movement, in order to make things look responsive. 4577 case 0: 4578 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4579 return movement; 4580 } 4581 movement += dir; 4582 nonAccelMovement += dir; 4583 step = 1; 4584 break; 4585 // If we have generated the first movement, then we need 4586 // to wait for the second complete trackball motion before 4587 // generating the second discrete movement. 4588 case 1: 4589 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4590 return movement; 4591 } 4592 movement += dir; 4593 nonAccelMovement += dir; 4594 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4595 step = 2; 4596 break; 4597 // After the first two, we generate discrete movements 4598 // consistently with the trackball, applying an acceleration 4599 // if the trackball is moving quickly. This is a simple 4600 // acceleration on top of what we already compute based 4601 // on how quickly the wheel is being turned, to apply 4602 // a longer increasing acceleration to continuous movement 4603 // in one direction. 4604 default: 4605 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4606 return movement; 4607 } 4608 movement += dir; 4609 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4610 float acc = acceleration; 4611 acc *= 1.1f; 4612 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4613 break; 4614 } 4615 } while (true); 4616 } 4617 } 4618 4619 /** 4620 * Creates dpad events from unhandled joystick movements. 4621 */ 4622 final class SyntheticJoystickHandler extends Handler { 4623 private final static String TAG = "SyntheticJoystickHandler"; 4624 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4625 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4626 4627 private int mLastXDirection; 4628 private int mLastYDirection; 4629 private int mLastXKeyCode; 4630 private int mLastYKeyCode; 4631 4632 public SyntheticJoystickHandler() { 4633 super(true); 4634 } 4635 4636 @Override 4637 public void handleMessage(Message msg) { 4638 switch (msg.what) { 4639 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4640 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4641 KeyEvent oldEvent = (KeyEvent)msg.obj; 4642 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4643 SystemClock.uptimeMillis(), 4644 oldEvent.getRepeatCount() + 1); 4645 if (mAttachInfo.mHasWindowFocus) { 4646 enqueueInputEvent(e); 4647 Message m = obtainMessage(msg.what, e); 4648 m.setAsynchronous(true); 4649 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4650 } 4651 } break; 4652 } 4653 } 4654 4655 public void process(MotionEvent event) { 4656 switch(event.getActionMasked()) { 4657 case MotionEvent.ACTION_CANCEL: 4658 cancel(event); 4659 break; 4660 case MotionEvent.ACTION_MOVE: 4661 update(event, true); 4662 break; 4663 default: 4664 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4665 } 4666 } 4667 4668 private void cancel(MotionEvent event) { 4669 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4670 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4671 update(event, false); 4672 } 4673 4674 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4675 final long time = event.getEventTime(); 4676 final int metaState = event.getMetaState(); 4677 final int deviceId = event.getDeviceId(); 4678 final int source = event.getSource(); 4679 4680 int xDirection = joystickAxisValueToDirection( 4681 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4682 if (xDirection == 0) { 4683 xDirection = joystickAxisValueToDirection(event.getX()); 4684 } 4685 4686 int yDirection = joystickAxisValueToDirection( 4687 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4688 if (yDirection == 0) { 4689 yDirection = joystickAxisValueToDirection(event.getY()); 4690 } 4691 4692 if (xDirection != mLastXDirection) { 4693 if (mLastXKeyCode != 0) { 4694 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4695 enqueueInputEvent(new KeyEvent(time, time, 4696 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4697 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4698 mLastXKeyCode = 0; 4699 } 4700 4701 mLastXDirection = xDirection; 4702 4703 if (xDirection != 0 && synthesizeNewKeys) { 4704 mLastXKeyCode = xDirection > 0 4705 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4706 final KeyEvent e = new KeyEvent(time, time, 4707 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4708 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4709 enqueueInputEvent(e); 4710 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4711 m.setAsynchronous(true); 4712 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4713 } 4714 } 4715 4716 if (yDirection != mLastYDirection) { 4717 if (mLastYKeyCode != 0) { 4718 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4719 enqueueInputEvent(new KeyEvent(time, time, 4720 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4721 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4722 mLastYKeyCode = 0; 4723 } 4724 4725 mLastYDirection = yDirection; 4726 4727 if (yDirection != 0 && synthesizeNewKeys) { 4728 mLastYKeyCode = yDirection > 0 4729 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4730 final KeyEvent e = new KeyEvent(time, time, 4731 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4732 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4733 enqueueInputEvent(e); 4734 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4735 m.setAsynchronous(true); 4736 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4737 } 4738 } 4739 } 4740 4741 private int joystickAxisValueToDirection(float value) { 4742 if (value >= 0.5f) { 4743 return 1; 4744 } else if (value <= -0.5f) { 4745 return -1; 4746 } else { 4747 return 0; 4748 } 4749 } 4750 } 4751 4752 /** 4753 * Creates dpad events from unhandled touch navigation movements. 4754 */ 4755 final class SyntheticTouchNavigationHandler extends Handler { 4756 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4757 private static final boolean LOCAL_DEBUG = false; 4758 4759 // Assumed nominal width and height in millimeters of a touch navigation pad, 4760 // if no resolution information is available from the input system. 4761 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4762 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4763 4764 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4765 4766 // The nominal distance traveled to move by one unit. 4767 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4768 4769 // Minimum and maximum fling velocity in ticks per second. 4770 // The minimum velocity should be set such that we perform enough ticks per 4771 // second that the fling appears to be fluid. For example, if we set the minimum 4772 // to 2 ticks per second, then there may be up to half a second delay between the next 4773 // to last and last ticks which is noticeably discrete and jerky. This value should 4774 // probably not be set to anything less than about 4. 4775 // If fling accuracy is a problem then consider tuning the tick distance instead. 4776 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4777 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4778 4779 // Fling velocity decay factor applied after each new key is emitted. 4780 // This parameter controls the deceleration and overall duration of the fling. 4781 // The fling stops automatically when its velocity drops below the minimum 4782 // fling velocity defined above. 4783 private static final float FLING_TICK_DECAY = 0.8f; 4784 4785 /* The input device that we are tracking. */ 4786 4787 private int mCurrentDeviceId = -1; 4788 private int mCurrentSource; 4789 private boolean mCurrentDeviceSupported; 4790 4791 /* Configuration for the current input device. */ 4792 4793 // The scaled tick distance. A movement of this amount should generally translate 4794 // into a single dpad event in a given direction. 4795 private float mConfigTickDistance; 4796 4797 // The minimum and maximum scaled fling velocity. 4798 private float mConfigMinFlingVelocity; 4799 private float mConfigMaxFlingVelocity; 4800 4801 /* Tracking state. */ 4802 4803 // The velocity tracker for detecting flings. 4804 private VelocityTracker mVelocityTracker; 4805 4806 // The active pointer id, or -1 if none. 4807 private int mActivePointerId = -1; 4808 4809 // Location where tracking started. 4810 private float mStartX; 4811 private float mStartY; 4812 4813 // Most recently observed position. 4814 private float mLastX; 4815 private float mLastY; 4816 4817 // Accumulated movement delta since the last direction key was sent. 4818 private float mAccumulatedX; 4819 private float mAccumulatedY; 4820 4821 // Set to true if any movement was delivered to the app. 4822 // Implies that tap slop was exceeded. 4823 private boolean mConsumedMovement; 4824 4825 // The most recently sent key down event. 4826 // The keycode remains set until the direction changes or a fling ends 4827 // so that repeated key events may be generated as required. 4828 private long mPendingKeyDownTime; 4829 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4830 private int mPendingKeyRepeatCount; 4831 private int mPendingKeyMetaState; 4832 4833 // The current fling velocity while a fling is in progress. 4834 private boolean mFlinging; 4835 private float mFlingVelocity; 4836 4837 public SyntheticTouchNavigationHandler() { 4838 super(true); 4839 } 4840 4841 public void process(MotionEvent event) { 4842 // Update the current device information. 4843 final long time = event.getEventTime(); 4844 final int deviceId = event.getDeviceId(); 4845 final int source = event.getSource(); 4846 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4847 finishKeys(time); 4848 finishTracking(time); 4849 mCurrentDeviceId = deviceId; 4850 mCurrentSource = source; 4851 mCurrentDeviceSupported = false; 4852 InputDevice device = event.getDevice(); 4853 if (device != null) { 4854 // In order to support an input device, we must know certain 4855 // characteristics about it, such as its size and resolution. 4856 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4857 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4858 if (xRange != null && yRange != null) { 4859 mCurrentDeviceSupported = true; 4860 4861 // Infer the resolution if it not actually known. 4862 float xRes = xRange.getResolution(); 4863 if (xRes <= 0) { 4864 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4865 } 4866 float yRes = yRange.getResolution(); 4867 if (yRes <= 0) { 4868 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4869 } 4870 float nominalRes = (xRes + yRes) * 0.5f; 4871 4872 // Precompute all of the configuration thresholds we will need. 4873 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4874 mConfigMinFlingVelocity = 4875 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4876 mConfigMaxFlingVelocity = 4877 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4878 4879 if (LOCAL_DEBUG) { 4880 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4881 + " (" + Integer.toHexString(mCurrentSource) + "): " 4882 + ", mConfigTickDistance=" + mConfigTickDistance 4883 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4884 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4885 } 4886 } 4887 } 4888 } 4889 if (!mCurrentDeviceSupported) { 4890 return; 4891 } 4892 4893 // Handle the event. 4894 final int action = event.getActionMasked(); 4895 switch (action) { 4896 case MotionEvent.ACTION_DOWN: { 4897 boolean caughtFling = mFlinging; 4898 finishKeys(time); 4899 finishTracking(time); 4900 mActivePointerId = event.getPointerId(0); 4901 mVelocityTracker = VelocityTracker.obtain(); 4902 mVelocityTracker.addMovement(event); 4903 mStartX = event.getX(); 4904 mStartY = event.getY(); 4905 mLastX = mStartX; 4906 mLastY = mStartY; 4907 mAccumulatedX = 0; 4908 mAccumulatedY = 0; 4909 4910 // If we caught a fling, then pretend that the tap slop has already 4911 // been exceeded to suppress taps whose only purpose is to stop the fling. 4912 mConsumedMovement = caughtFling; 4913 break; 4914 } 4915 4916 case MotionEvent.ACTION_MOVE: 4917 case MotionEvent.ACTION_UP: { 4918 if (mActivePointerId < 0) { 4919 break; 4920 } 4921 final int index = event.findPointerIndex(mActivePointerId); 4922 if (index < 0) { 4923 finishKeys(time); 4924 finishTracking(time); 4925 break; 4926 } 4927 4928 mVelocityTracker.addMovement(event); 4929 final float x = event.getX(index); 4930 final float y = event.getY(index); 4931 mAccumulatedX += x - mLastX; 4932 mAccumulatedY += y - mLastY; 4933 mLastX = x; 4934 mLastY = y; 4935 4936 // Consume any accumulated movement so far. 4937 final int metaState = event.getMetaState(); 4938 consumeAccumulatedMovement(time, metaState); 4939 4940 // Detect taps and flings. 4941 if (action == MotionEvent.ACTION_UP) { 4942 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4943 // It might be a fling. 4944 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4945 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4946 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4947 if (!startFling(time, vx, vy)) { 4948 finishKeys(time); 4949 } 4950 } 4951 finishTracking(time); 4952 } 4953 break; 4954 } 4955 4956 case MotionEvent.ACTION_CANCEL: { 4957 finishKeys(time); 4958 finishTracking(time); 4959 break; 4960 } 4961 } 4962 } 4963 4964 public void cancel(MotionEvent event) { 4965 if (mCurrentDeviceId == event.getDeviceId() 4966 && mCurrentSource == event.getSource()) { 4967 final long time = event.getEventTime(); 4968 finishKeys(time); 4969 finishTracking(time); 4970 } 4971 } 4972 4973 private void finishKeys(long time) { 4974 cancelFling(); 4975 sendKeyUp(time); 4976 } 4977 4978 private void finishTracking(long time) { 4979 if (mActivePointerId >= 0) { 4980 mActivePointerId = -1; 4981 mVelocityTracker.recycle(); 4982 mVelocityTracker = null; 4983 } 4984 } 4985 4986 private void consumeAccumulatedMovement(long time, int metaState) { 4987 final float absX = Math.abs(mAccumulatedX); 4988 final float absY = Math.abs(mAccumulatedY); 4989 if (absX >= absY) { 4990 if (absX >= mConfigTickDistance) { 4991 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4992 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4993 mAccumulatedY = 0; 4994 mConsumedMovement = true; 4995 } 4996 } else { 4997 if (absY >= mConfigTickDistance) { 4998 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4999 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 5000 mAccumulatedX = 0; 5001 mConsumedMovement = true; 5002 } 5003 } 5004 } 5005 5006 private float consumeAccumulatedMovement(long time, int metaState, 5007 float accumulator, int negativeKeyCode, int positiveKeyCode) { 5008 while (accumulator <= -mConfigTickDistance) { 5009 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 5010 accumulator += mConfigTickDistance; 5011 } 5012 while (accumulator >= mConfigTickDistance) { 5013 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 5014 accumulator -= mConfigTickDistance; 5015 } 5016 return accumulator; 5017 } 5018 5019 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 5020 if (mPendingKeyCode != keyCode) { 5021 sendKeyUp(time); 5022 mPendingKeyDownTime = time; 5023 mPendingKeyCode = keyCode; 5024 mPendingKeyRepeatCount = 0; 5025 } else { 5026 mPendingKeyRepeatCount += 1; 5027 } 5028 mPendingKeyMetaState = metaState; 5029 5030 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 5031 // but it doesn't quite make sense when simulating the events in this way. 5032 if (LOCAL_DEBUG) { 5033 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 5034 + ", repeatCount=" + mPendingKeyRepeatCount 5035 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 5036 } 5037 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5038 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 5039 mPendingKeyMetaState, mCurrentDeviceId, 5040 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 5041 } 5042 5043 private void sendKeyUp(long time) { 5044 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 5045 if (LOCAL_DEBUG) { 5046 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 5047 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 5048 } 5049 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5050 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 5051 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 5052 mCurrentSource)); 5053 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 5054 } 5055 } 5056 5057 private boolean startFling(long time, float vx, float vy) { 5058 if (LOCAL_DEBUG) { 5059 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 5060 + ", min=" + mConfigMinFlingVelocity); 5061 } 5062 5063 // Flings must be oriented in the same direction as the preceding movements. 5064 switch (mPendingKeyCode) { 5065 case KeyEvent.KEYCODE_DPAD_LEFT: 5066 if (-vx >= mConfigMinFlingVelocity 5067 && Math.abs(vy) < mConfigMinFlingVelocity) { 5068 mFlingVelocity = -vx; 5069 break; 5070 } 5071 return false; 5072 5073 case KeyEvent.KEYCODE_DPAD_RIGHT: 5074 if (vx >= mConfigMinFlingVelocity 5075 && Math.abs(vy) < mConfigMinFlingVelocity) { 5076 mFlingVelocity = vx; 5077 break; 5078 } 5079 return false; 5080 5081 case KeyEvent.KEYCODE_DPAD_UP: 5082 if (-vy >= mConfigMinFlingVelocity 5083 && Math.abs(vx) < mConfigMinFlingVelocity) { 5084 mFlingVelocity = -vy; 5085 break; 5086 } 5087 return false; 5088 5089 case KeyEvent.KEYCODE_DPAD_DOWN: 5090 if (vy >= mConfigMinFlingVelocity 5091 && Math.abs(vx) < mConfigMinFlingVelocity) { 5092 mFlingVelocity = vy; 5093 break; 5094 } 5095 return false; 5096 } 5097 5098 // Post the first fling event. 5099 mFlinging = postFling(time); 5100 return mFlinging; 5101 } 5102 5103 private boolean postFling(long time) { 5104 // The idea here is to estimate the time when the pointer would have 5105 // traveled one tick distance unit given the current fling velocity. 5106 // This effect creates continuity of motion. 5107 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5108 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5109 postAtTime(mFlingRunnable, time + delay); 5110 if (LOCAL_DEBUG) { 5111 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5112 + mFlingVelocity + ", delay=" + delay 5113 + ", keyCode=" + mPendingKeyCode); 5114 } 5115 return true; 5116 } 5117 return false; 5118 } 5119 5120 private void cancelFling() { 5121 if (mFlinging) { 5122 removeCallbacks(mFlingRunnable); 5123 mFlinging = false; 5124 } 5125 } 5126 5127 private final Runnable mFlingRunnable = new Runnable() { 5128 @Override 5129 public void run() { 5130 final long time = SystemClock.uptimeMillis(); 5131 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5132 mFlingVelocity *= FLING_TICK_DECAY; 5133 if (!postFling(time)) { 5134 mFlinging = false; 5135 finishKeys(time); 5136 } 5137 } 5138 }; 5139 } 5140 5141 final class SyntheticKeyboardHandler { 5142 public void process(KeyEvent event) { 5143 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5144 return; 5145 } 5146 5147 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5148 final int keyCode = event.getKeyCode(); 5149 final int metaState = event.getMetaState(); 5150 5151 // Check for fallback actions specified by the key character map. 5152 KeyCharacterMap.FallbackAction fallbackAction = 5153 kcm.getFallbackAction(keyCode, metaState); 5154 if (fallbackAction != null) { 5155 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5156 KeyEvent fallbackEvent = KeyEvent.obtain( 5157 event.getDownTime(), event.getEventTime(), 5158 event.getAction(), fallbackAction.keyCode, 5159 event.getRepeatCount(), fallbackAction.metaState, 5160 event.getDeviceId(), event.getScanCode(), 5161 flags, event.getSource(), null); 5162 fallbackAction.recycle(); 5163 enqueueInputEvent(fallbackEvent); 5164 } 5165 } 5166 } 5167 5168 /** 5169 * Returns true if the key is used for keyboard navigation. 5170 * @param keyEvent The key event. 5171 * @return True if the key is used for keyboard navigation. 5172 */ 5173 private static boolean isNavigationKey(KeyEvent keyEvent) { 5174 switch (keyEvent.getKeyCode()) { 5175 case KeyEvent.KEYCODE_DPAD_LEFT: 5176 case KeyEvent.KEYCODE_DPAD_RIGHT: 5177 case KeyEvent.KEYCODE_DPAD_UP: 5178 case KeyEvent.KEYCODE_DPAD_DOWN: 5179 case KeyEvent.KEYCODE_DPAD_CENTER: 5180 case KeyEvent.KEYCODE_PAGE_UP: 5181 case KeyEvent.KEYCODE_PAGE_DOWN: 5182 case KeyEvent.KEYCODE_MOVE_HOME: 5183 case KeyEvent.KEYCODE_MOVE_END: 5184 case KeyEvent.KEYCODE_TAB: 5185 case KeyEvent.KEYCODE_SPACE: 5186 case KeyEvent.KEYCODE_ENTER: 5187 return true; 5188 } 5189 return false; 5190 } 5191 5192 /** 5193 * Returns true if the key is used for typing. 5194 * @param keyEvent The key event. 5195 * @return True if the key is used for typing. 5196 */ 5197 private static boolean isTypingKey(KeyEvent keyEvent) { 5198 return keyEvent.getUnicodeChar() > 0; 5199 } 5200 5201 /** 5202 * See if the key event means we should leave touch mode (and leave touch mode if so). 5203 * @param event The key event. 5204 * @return Whether this key event should be consumed (meaning the act of 5205 * leaving touch mode alone is considered the event). 5206 */ 5207 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5208 // Only relevant in touch mode. 5209 if (!mAttachInfo.mInTouchMode) { 5210 return false; 5211 } 5212 5213 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5214 final int action = event.getAction(); 5215 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5216 return false; 5217 } 5218 5219 // Don't leave touch mode if the IME told us not to. 5220 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5221 return false; 5222 } 5223 5224 // If the key can be used for keyboard navigation then leave touch mode 5225 // and select a focused view if needed (in ensureTouchMode). 5226 // When a new focused view is selected, we consume the navigation key because 5227 // navigation doesn't make much sense unless a view already has focus so 5228 // the key's purpose is to set focus. 5229 if (isNavigationKey(event)) { 5230 return ensureTouchMode(false); 5231 } 5232 5233 // If the key can be used for typing then leave touch mode 5234 // and select a focused view if needed (in ensureTouchMode). 5235 // Always allow the view to process the typing key. 5236 if (isTypingKey(event)) { 5237 ensureTouchMode(false); 5238 return false; 5239 } 5240 5241 return false; 5242 } 5243 5244 /* drag/drop */ 5245 void setLocalDragState(Object obj) { 5246 mLocalDragState = obj; 5247 } 5248 5249 private void handleDragEvent(DragEvent event) { 5250 // From the root, only drag start/end/location are dispatched. entered/exited 5251 // are determined and dispatched by the viewgroup hierarchy, who then report 5252 // that back here for ultimate reporting back to the framework. 5253 if (mView != null && mAdded) { 5254 final int what = event.mAction; 5255 5256 if (what == DragEvent.ACTION_DRAG_EXITED) { 5257 // A direct EXITED event means that the window manager knows we've just crossed 5258 // a window boundary, so the current drag target within this one must have 5259 // just been exited. Send it the usual notifications and then we're done 5260 // for now. 5261 mView.dispatchDragEvent(event); 5262 } else { 5263 // Cache the drag description when the operation starts, then fill it in 5264 // on subsequent calls as a convenience 5265 if (what == DragEvent.ACTION_DRAG_STARTED) { 5266 mCurrentDragView = null; // Start the current-recipient tracking 5267 mDragDescription = event.mClipDescription; 5268 } else { 5269 event.mClipDescription = mDragDescription; 5270 } 5271 5272 // For events with a [screen] location, translate into window coordinates 5273 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5274 mDragPoint.set(event.mX, event.mY); 5275 if (mTranslator != null) { 5276 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5277 } 5278 5279 if (mCurScrollY != 0) { 5280 mDragPoint.offset(0, mCurScrollY); 5281 } 5282 5283 event.mX = mDragPoint.x; 5284 event.mY = mDragPoint.y; 5285 } 5286 5287 // Remember who the current drag target is pre-dispatch 5288 final View prevDragView = mCurrentDragView; 5289 5290 // Now dispatch the drag/drop event 5291 boolean result = mView.dispatchDragEvent(event); 5292 5293 // If we changed apparent drag target, tell the OS about it 5294 if (prevDragView != mCurrentDragView) { 5295 try { 5296 if (prevDragView != null) { 5297 mWindowSession.dragRecipientExited(mWindow); 5298 } 5299 if (mCurrentDragView != null) { 5300 mWindowSession.dragRecipientEntered(mWindow); 5301 } 5302 } catch (RemoteException e) { 5303 Slog.e(TAG, "Unable to note drag target change"); 5304 } 5305 } 5306 5307 // Report the drop result when we're done 5308 if (what == DragEvent.ACTION_DROP) { 5309 mDragDescription = null; 5310 try { 5311 Log.i(TAG, "Reporting drop result: " + result); 5312 mWindowSession.reportDropResult(mWindow, result); 5313 } catch (RemoteException e) { 5314 Log.e(TAG, "Unable to report drop result"); 5315 } 5316 } 5317 5318 // When the drag operation ends, reset drag-related state 5319 if (what == DragEvent.ACTION_DRAG_ENDED) { 5320 setLocalDragState(null); 5321 mAttachInfo.mDragToken = null; 5322 if (mAttachInfo.mDragSurface != null) { 5323 mAttachInfo.mDragSurface.release(); 5324 mAttachInfo.mDragSurface = null; 5325 } 5326 } 5327 } 5328 } 5329 event.recycle(); 5330 } 5331 5332 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5333 if (mSeq != args.seq) { 5334 // The sequence has changed, so we need to update our value and make 5335 // sure to do a traversal afterward so the window manager is given our 5336 // most recent data. 5337 mSeq = args.seq; 5338 mAttachInfo.mForceReportNewAttributes = true; 5339 scheduleTraversals(); 5340 } 5341 if (mView == null) return; 5342 if (args.localChanges != 0) { 5343 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5344 } 5345 5346 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5347 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5348 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5349 mView.dispatchSystemUiVisibilityChanged(visibility); 5350 } 5351 } 5352 5353 public void handleDispatchWindowShown() { 5354 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5355 } 5356 5357 public void getLastTouchPoint(Point outLocation) { 5358 outLocation.x = (int) mLastTouchPoint.x; 5359 outLocation.y = (int) mLastTouchPoint.y; 5360 } 5361 5362 public void setDragFocus(View newDragTarget) { 5363 if (mCurrentDragView != newDragTarget) { 5364 mCurrentDragView = newDragTarget; 5365 } 5366 } 5367 5368 private AudioManager getAudioManager() { 5369 if (mView == null) { 5370 throw new IllegalStateException("getAudioManager called when there is no mView"); 5371 } 5372 if (mAudioManager == null) { 5373 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5374 } 5375 return mAudioManager; 5376 } 5377 5378 public AccessibilityInteractionController getAccessibilityInteractionController() { 5379 if (mView == null) { 5380 throw new IllegalStateException("getAccessibilityInteractionController" 5381 + " called when there is no mView"); 5382 } 5383 if (mAccessibilityInteractionController == null) { 5384 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5385 } 5386 return mAccessibilityInteractionController; 5387 } 5388 5389 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5390 boolean insetsPending) throws RemoteException { 5391 5392 float appScale = mAttachInfo.mApplicationScale; 5393 boolean restore = false; 5394 if (params != null && mTranslator != null) { 5395 restore = true; 5396 params.backup(); 5397 mTranslator.translateWindowLayout(params); 5398 } 5399 if (params != null) { 5400 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5401 } 5402 mPendingConfiguration.seq = 0; 5403 //Log.d(TAG, ">>>>>> CALLING relayout"); 5404 if (params != null && mOrigWindowType != params.type) { 5405 // For compatibility with old apps, don't crash here. 5406 if (mTargetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5407 Slog.w(TAG, "Window type can not be changed after " 5408 + "the window is added; ignoring change of " + mView); 5409 params.type = mOrigWindowType; 5410 } 5411 } 5412 int relayoutResult = mWindowSession.relayout( 5413 mWindow, mSeq, params, 5414 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5415 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5416 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5417 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5418 mPendingStableInsets, mPendingOutsets, mPendingConfiguration, mSurface); 5419 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5420 if (restore) { 5421 params.restore(); 5422 } 5423 5424 if (mTranslator != null) { 5425 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5426 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5427 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5428 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5429 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5430 } 5431 return relayoutResult; 5432 } 5433 5434 /** 5435 * {@inheritDoc} 5436 */ 5437 @Override 5438 public void playSoundEffect(int effectId) { 5439 checkThread(); 5440 5441 try { 5442 final AudioManager audioManager = getAudioManager(); 5443 5444 switch (effectId) { 5445 case SoundEffectConstants.CLICK: 5446 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5447 return; 5448 case SoundEffectConstants.NAVIGATION_DOWN: 5449 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5450 return; 5451 case SoundEffectConstants.NAVIGATION_LEFT: 5452 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5453 return; 5454 case SoundEffectConstants.NAVIGATION_RIGHT: 5455 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5456 return; 5457 case SoundEffectConstants.NAVIGATION_UP: 5458 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5459 return; 5460 default: 5461 throw new IllegalArgumentException("unknown effect id " + effectId + 5462 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5463 } 5464 } catch (IllegalStateException e) { 5465 // Exception thrown by getAudioManager() when mView is null 5466 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5467 e.printStackTrace(); 5468 } 5469 } 5470 5471 /** 5472 * {@inheritDoc} 5473 */ 5474 @Override 5475 public boolean performHapticFeedback(int effectId, boolean always) { 5476 try { 5477 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5478 } catch (RemoteException e) { 5479 return false; 5480 } 5481 } 5482 5483 /** 5484 * {@inheritDoc} 5485 */ 5486 @Override 5487 public View focusSearch(View focused, int direction) { 5488 checkThread(); 5489 if (!(mView instanceof ViewGroup)) { 5490 return null; 5491 } 5492 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5493 } 5494 5495 public void debug() { 5496 mView.debug(); 5497 } 5498 5499 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5500 String innerPrefix = prefix + " "; 5501 writer.print(prefix); writer.println("ViewRoot:"); 5502 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5503 writer.print(" mRemoved="); writer.println(mRemoved); 5504 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5505 writer.println(mConsumeBatchedInputScheduled); 5506 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5507 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5508 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5509 writer.println(mPendingInputEventCount); 5510 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5511 writer.println(mProcessInputEventsScheduled); 5512 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5513 writer.print(mTraversalScheduled); 5514 if (mTraversalScheduled) { 5515 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5516 } else { 5517 writer.println(); 5518 } 5519 mFirstInputStage.dump(innerPrefix, writer); 5520 5521 mChoreographer.dump(prefix, writer); 5522 5523 writer.print(prefix); writer.println("View Hierarchy:"); 5524 dumpViewHierarchy(innerPrefix, writer, mView); 5525 } 5526 5527 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5528 writer.print(prefix); 5529 if (view == null) { 5530 writer.println("null"); 5531 return; 5532 } 5533 writer.println(view.toString()); 5534 if (!(view instanceof ViewGroup)) { 5535 return; 5536 } 5537 ViewGroup grp = (ViewGroup)view; 5538 final int N = grp.getChildCount(); 5539 if (N <= 0) { 5540 return; 5541 } 5542 prefix = prefix + " "; 5543 for (int i=0; i<N; i++) { 5544 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5545 } 5546 } 5547 5548 public void dumpGfxInfo(int[] info) { 5549 info[0] = info[1] = 0; 5550 if (mView != null) { 5551 getGfxInfo(mView, info); 5552 } 5553 } 5554 5555 private static void getGfxInfo(View view, int[] info) { 5556 RenderNode renderNode = view.mRenderNode; 5557 info[0]++; 5558 if (renderNode != null) { 5559 info[1] += renderNode.getDebugSize(); 5560 } 5561 5562 if (view instanceof ViewGroup) { 5563 ViewGroup group = (ViewGroup) view; 5564 5565 int count = group.getChildCount(); 5566 for (int i = 0; i < count; i++) { 5567 getGfxInfo(group.getChildAt(i), info); 5568 } 5569 } 5570 } 5571 5572 /** 5573 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5574 * @return True, request has been queued. False, request has been completed. 5575 */ 5576 boolean die(boolean immediate) { 5577 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5578 // done by dispatchDetachedFromWindow will cause havoc on return. 5579 if (immediate && !mIsInTraversal) { 5580 doDie(); 5581 return false; 5582 } 5583 5584 if (!mIsDrawing) { 5585 destroyHardwareRenderer(); 5586 } else { 5587 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5588 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5589 } 5590 mHandler.sendEmptyMessage(MSG_DIE); 5591 return true; 5592 } 5593 5594 void doDie() { 5595 checkThread(); 5596 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5597 synchronized (this) { 5598 if (mRemoved) { 5599 return; 5600 } 5601 mRemoved = true; 5602 if (mAdded) { 5603 dispatchDetachedFromWindow(); 5604 } 5605 5606 if (mAdded && !mFirst) { 5607 destroyHardwareRenderer(); 5608 5609 if (mView != null) { 5610 int viewVisibility = mView.getVisibility(); 5611 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5612 if (mWindowAttributesChanged || viewVisibilityChanged) { 5613 // If layout params have been changed, first give them 5614 // to the window manager to make sure it has the correct 5615 // animation info. 5616 try { 5617 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5618 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5619 mWindowSession.finishDrawing(mWindow); 5620 } 5621 } catch (RemoteException e) { 5622 } 5623 } 5624 5625 mSurface.release(); 5626 } 5627 } 5628 5629 mAdded = false; 5630 } 5631 WindowManagerGlobal.getInstance().doRemoveView(this); 5632 } 5633 5634 public void requestUpdateConfiguration(Configuration config) { 5635 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5636 mHandler.sendMessage(msg); 5637 } 5638 5639 public void loadSystemProperties() { 5640 mHandler.post(new Runnable() { 5641 @Override 5642 public void run() { 5643 // Profiling 5644 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5645 profileRendering(mAttachInfo.mHasWindowFocus); 5646 5647 // Hardware rendering 5648 if (mAttachInfo.mHardwareRenderer != null) { 5649 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5650 invalidate(); 5651 } 5652 } 5653 5654 // Layout debugging 5655 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5656 if (layout != mAttachInfo.mDebugLayout) { 5657 mAttachInfo.mDebugLayout = layout; 5658 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5659 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5660 } 5661 } 5662 } 5663 }); 5664 } 5665 5666 private void destroyHardwareRenderer() { 5667 ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5668 5669 if (hardwareRenderer != null) { 5670 if (mView != null) { 5671 hardwareRenderer.destroyHardwareResources(mView); 5672 } 5673 hardwareRenderer.destroy(); 5674 hardwareRenderer.setRequested(false); 5675 5676 mAttachInfo.mHardwareRenderer = null; 5677 mAttachInfo.mHardwareAccelerated = false; 5678 } 5679 } 5680 5681 public void dispatchFinishInputConnection(InputConnection connection) { 5682 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5683 mHandler.sendMessage(msg); 5684 } 5685 5686 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5687 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 5688 Configuration newConfig, Rect backDropFrame) { 5689 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5690 + " contentInsets=" + contentInsets.toShortString() 5691 + " visibleInsets=" + visibleInsets.toShortString() 5692 + " reportDraw=" + reportDraw 5693 + " backDropFrame=" + backDropFrame); 5694 5695 // Tell all listeners that we are resizing the window so that the chrome can get 5696 // updated as fast as possible on a separate thread, 5697 if (mDragResizing) { 5698 synchronized (mWindowCallbacks) { 5699 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 5700 mWindowCallbacks.get(i).onWindowSizeIsChanging(backDropFrame); 5701 } 5702 } 5703 } 5704 5705 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5706 if (mTranslator != null) { 5707 mTranslator.translateRectInScreenToAppWindow(frame); 5708 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5709 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5710 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5711 } 5712 SomeArgs args = SomeArgs.obtain(); 5713 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5714 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5715 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5716 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5717 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5718 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5719 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5720 args.arg7 = sameProcessCall ? new Rect(outsets) : outsets; 5721 args.arg8 = sameProcessCall ? new Rect(backDropFrame) : backDropFrame; 5722 msg.obj = args; 5723 mHandler.sendMessage(msg); 5724 } 5725 5726 public void dispatchMoved(int newX, int newY) { 5727 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5728 if (mTranslator != null) { 5729 PointF point = new PointF(newX, newY); 5730 mTranslator.translatePointInScreenToAppWindow(point); 5731 newX = (int) (point.x + 0.5); 5732 newY = (int) (point.y + 0.5); 5733 } 5734 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5735 mHandler.sendMessage(msg); 5736 } 5737 5738 /** 5739 * Represents a pending input event that is waiting in a queue. 5740 * 5741 * Input events are processed in serial order by the timestamp specified by 5742 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5743 * one input event to the application at a time and waits for the application 5744 * to finish handling it before delivering the next one. 5745 * 5746 * However, because the application or IME can synthesize and inject multiple 5747 * key events at a time without going through the input dispatcher, we end up 5748 * needing a queue on the application's side. 5749 */ 5750 private static final class QueuedInputEvent { 5751 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5752 public static final int FLAG_DEFERRED = 1 << 1; 5753 public static final int FLAG_FINISHED = 1 << 2; 5754 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5755 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5756 public static final int FLAG_UNHANDLED = 1 << 5; 5757 5758 public QueuedInputEvent mNext; 5759 5760 public InputEvent mEvent; 5761 public InputEventReceiver mReceiver; 5762 public int mFlags; 5763 5764 public boolean shouldSkipIme() { 5765 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5766 return true; 5767 } 5768 return mEvent instanceof MotionEvent 5769 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5770 } 5771 5772 public boolean shouldSendToSynthesizer() { 5773 if ((mFlags & FLAG_UNHANDLED) != 0) { 5774 return true; 5775 } 5776 5777 return false; 5778 } 5779 5780 @Override 5781 public String toString() { 5782 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5783 boolean hasPrevious = false; 5784 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5785 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5786 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5787 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5788 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5789 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5790 if (!hasPrevious) { 5791 sb.append("0"); 5792 } 5793 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5794 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5795 sb.append(", mEvent=" + mEvent + "}"); 5796 return sb.toString(); 5797 } 5798 5799 private boolean flagToString(String name, int flag, 5800 boolean hasPrevious, StringBuilder sb) { 5801 if ((mFlags & flag) != 0) { 5802 if (hasPrevious) { 5803 sb.append("|"); 5804 } 5805 sb.append(name); 5806 return true; 5807 } 5808 return hasPrevious; 5809 } 5810 } 5811 5812 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5813 InputEventReceiver receiver, int flags) { 5814 QueuedInputEvent q = mQueuedInputEventPool; 5815 if (q != null) { 5816 mQueuedInputEventPoolSize -= 1; 5817 mQueuedInputEventPool = q.mNext; 5818 q.mNext = null; 5819 } else { 5820 q = new QueuedInputEvent(); 5821 } 5822 5823 q.mEvent = event; 5824 q.mReceiver = receiver; 5825 q.mFlags = flags; 5826 return q; 5827 } 5828 5829 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5830 q.mEvent = null; 5831 q.mReceiver = null; 5832 5833 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5834 mQueuedInputEventPoolSize += 1; 5835 q.mNext = mQueuedInputEventPool; 5836 mQueuedInputEventPool = q; 5837 } 5838 } 5839 5840 void enqueueInputEvent(InputEvent event) { 5841 enqueueInputEvent(event, null, 0, false); 5842 } 5843 5844 void enqueueInputEvent(InputEvent event, 5845 InputEventReceiver receiver, int flags, boolean processImmediately) { 5846 adjustInputEventForCompatibility(event); 5847 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5848 5849 // Always enqueue the input event in order, regardless of its time stamp. 5850 // We do this because the application or the IME may inject key events 5851 // in response to touch events and we want to ensure that the injected keys 5852 // are processed in the order they were received and we cannot trust that 5853 // the time stamp of injected events are monotonic. 5854 QueuedInputEvent last = mPendingInputEventTail; 5855 if (last == null) { 5856 mPendingInputEventHead = q; 5857 mPendingInputEventTail = q; 5858 } else { 5859 last.mNext = q; 5860 mPendingInputEventTail = q; 5861 } 5862 mPendingInputEventCount += 1; 5863 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5864 mPendingInputEventCount); 5865 5866 if (processImmediately) { 5867 doProcessInputEvents(); 5868 } else { 5869 scheduleProcessInputEvents(); 5870 } 5871 } 5872 5873 private void scheduleProcessInputEvents() { 5874 if (!mProcessInputEventsScheduled) { 5875 mProcessInputEventsScheduled = true; 5876 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5877 msg.setAsynchronous(true); 5878 mHandler.sendMessage(msg); 5879 } 5880 } 5881 5882 void doProcessInputEvents() { 5883 // Deliver all pending input events in the queue. 5884 while (mPendingInputEventHead != null) { 5885 QueuedInputEvent q = mPendingInputEventHead; 5886 mPendingInputEventHead = q.mNext; 5887 if (mPendingInputEventHead == null) { 5888 mPendingInputEventTail = null; 5889 } 5890 q.mNext = null; 5891 5892 mPendingInputEventCount -= 1; 5893 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5894 mPendingInputEventCount); 5895 5896 long eventTime = q.mEvent.getEventTimeNano(); 5897 long oldestEventTime = eventTime; 5898 if (q.mEvent instanceof MotionEvent) { 5899 MotionEvent me = (MotionEvent)q.mEvent; 5900 if (me.getHistorySize() > 0) { 5901 oldestEventTime = me.getHistoricalEventTimeNano(0); 5902 } 5903 } 5904 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5905 5906 deliverInputEvent(q); 5907 } 5908 5909 // We are done processing all input events that we can process right now 5910 // so we can clear the pending flag immediately. 5911 if (mProcessInputEventsScheduled) { 5912 mProcessInputEventsScheduled = false; 5913 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5914 } 5915 } 5916 5917 private void deliverInputEvent(QueuedInputEvent q) { 5918 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5919 q.mEvent.getSequenceNumber()); 5920 if (mInputEventConsistencyVerifier != null) { 5921 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5922 } 5923 5924 InputStage stage; 5925 if (q.shouldSendToSynthesizer()) { 5926 stage = mSyntheticInputStage; 5927 } else { 5928 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5929 } 5930 5931 if (stage != null) { 5932 stage.deliver(q); 5933 } else { 5934 finishInputEvent(q); 5935 } 5936 } 5937 5938 private void finishInputEvent(QueuedInputEvent q) { 5939 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5940 q.mEvent.getSequenceNumber()); 5941 5942 if (q.mReceiver != null) { 5943 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5944 q.mReceiver.finishInputEvent(q.mEvent, handled); 5945 } else { 5946 q.mEvent.recycleIfNeededAfterDispatch(); 5947 } 5948 5949 recycleQueuedInputEvent(q); 5950 } 5951 5952 private void adjustInputEventForCompatibility(InputEvent e) { 5953 if (mTargetSdkVersion < Build.VERSION_CODES.M && e instanceof MotionEvent) { 5954 MotionEvent motion = (MotionEvent) e; 5955 final int mask = 5956 MotionEvent.BUTTON_STYLUS_PRIMARY | MotionEvent.BUTTON_STYLUS_SECONDARY; 5957 final int buttonState = motion.getButtonState(); 5958 final int compatButtonState = (buttonState & mask) >> 4; 5959 if (compatButtonState != 0) { 5960 motion.setButtonState(buttonState | compatButtonState); 5961 } 5962 } 5963 } 5964 5965 static boolean isTerminalInputEvent(InputEvent event) { 5966 if (event instanceof KeyEvent) { 5967 final KeyEvent keyEvent = (KeyEvent)event; 5968 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5969 } else { 5970 final MotionEvent motionEvent = (MotionEvent)event; 5971 final int action = motionEvent.getAction(); 5972 return action == MotionEvent.ACTION_UP 5973 || action == MotionEvent.ACTION_CANCEL 5974 || action == MotionEvent.ACTION_HOVER_EXIT; 5975 } 5976 } 5977 5978 void scheduleConsumeBatchedInput() { 5979 if (!mConsumeBatchedInputScheduled) { 5980 mConsumeBatchedInputScheduled = true; 5981 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5982 mConsumedBatchedInputRunnable, null); 5983 } 5984 } 5985 5986 void unscheduleConsumeBatchedInput() { 5987 if (mConsumeBatchedInputScheduled) { 5988 mConsumeBatchedInputScheduled = false; 5989 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5990 mConsumedBatchedInputRunnable, null); 5991 } 5992 } 5993 5994 void scheduleConsumeBatchedInputImmediately() { 5995 if (!mConsumeBatchedInputImmediatelyScheduled) { 5996 unscheduleConsumeBatchedInput(); 5997 mConsumeBatchedInputImmediatelyScheduled = true; 5998 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5999 } 6000 } 6001 6002 void doConsumeBatchedInput(long frameTimeNanos) { 6003 if (mConsumeBatchedInputScheduled) { 6004 mConsumeBatchedInputScheduled = false; 6005 if (mInputEventReceiver != null) { 6006 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 6007 && frameTimeNanos != -1) { 6008 // If we consumed a batch here, we want to go ahead and schedule the 6009 // consumption of batched input events on the next frame. Otherwise, we would 6010 // wait until we have more input events pending and might get starved by other 6011 // things occurring in the process. If the frame time is -1, however, then 6012 // we're in a non-batching mode, so there's no need to schedule this. 6013 scheduleConsumeBatchedInput(); 6014 } 6015 } 6016 doProcessInputEvents(); 6017 } 6018 } 6019 6020 final class TraversalRunnable implements Runnable { 6021 @Override 6022 public void run() { 6023 doTraversal(); 6024 } 6025 } 6026 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 6027 6028 final class WindowInputEventReceiver extends InputEventReceiver { 6029 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 6030 super(inputChannel, looper); 6031 } 6032 6033 @Override 6034 public void onInputEvent(InputEvent event) { 6035 enqueueInputEvent(event, this, 0, true); 6036 } 6037 6038 @Override 6039 public void onBatchedInputEventPending() { 6040 if (mUnbufferedInputDispatch) { 6041 super.onBatchedInputEventPending(); 6042 } else { 6043 scheduleConsumeBatchedInput(); 6044 } 6045 } 6046 6047 @Override 6048 public void dispose() { 6049 unscheduleConsumeBatchedInput(); 6050 super.dispose(); 6051 } 6052 } 6053 WindowInputEventReceiver mInputEventReceiver; 6054 6055 final class ConsumeBatchedInputRunnable implements Runnable { 6056 @Override 6057 public void run() { 6058 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 6059 } 6060 } 6061 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 6062 new ConsumeBatchedInputRunnable(); 6063 boolean mConsumeBatchedInputScheduled; 6064 6065 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 6066 @Override 6067 public void run() { 6068 doConsumeBatchedInput(-1); 6069 } 6070 } 6071 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 6072 new ConsumeBatchedInputImmediatelyRunnable(); 6073 boolean mConsumeBatchedInputImmediatelyScheduled; 6074 6075 final class InvalidateOnAnimationRunnable implements Runnable { 6076 private boolean mPosted; 6077 private final ArrayList<View> mViews = new ArrayList<View>(); 6078 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 6079 new ArrayList<AttachInfo.InvalidateInfo>(); 6080 private View[] mTempViews; 6081 private AttachInfo.InvalidateInfo[] mTempViewRects; 6082 6083 public void addView(View view) { 6084 synchronized (this) { 6085 mViews.add(view); 6086 postIfNeededLocked(); 6087 } 6088 } 6089 6090 public void addViewRect(AttachInfo.InvalidateInfo info) { 6091 synchronized (this) { 6092 mViewRects.add(info); 6093 postIfNeededLocked(); 6094 } 6095 } 6096 6097 public void removeView(View view) { 6098 synchronized (this) { 6099 mViews.remove(view); 6100 6101 for (int i = mViewRects.size(); i-- > 0; ) { 6102 AttachInfo.InvalidateInfo info = mViewRects.get(i); 6103 if (info.target == view) { 6104 mViewRects.remove(i); 6105 info.recycle(); 6106 } 6107 } 6108 6109 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6110 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6111 mPosted = false; 6112 } 6113 } 6114 } 6115 6116 @Override 6117 public void run() { 6118 final int viewCount; 6119 final int viewRectCount; 6120 synchronized (this) { 6121 mPosted = false; 6122 6123 viewCount = mViews.size(); 6124 if (viewCount != 0) { 6125 mTempViews = mViews.toArray(mTempViews != null 6126 ? mTempViews : new View[viewCount]); 6127 mViews.clear(); 6128 } 6129 6130 viewRectCount = mViewRects.size(); 6131 if (viewRectCount != 0) { 6132 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6133 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6134 mViewRects.clear(); 6135 } 6136 } 6137 6138 for (int i = 0; i < viewCount; i++) { 6139 mTempViews[i].invalidate(); 6140 mTempViews[i] = null; 6141 } 6142 6143 for (int i = 0; i < viewRectCount; i++) { 6144 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6145 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6146 info.recycle(); 6147 } 6148 } 6149 6150 private void postIfNeededLocked() { 6151 if (!mPosted) { 6152 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6153 mPosted = true; 6154 } 6155 } 6156 } 6157 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6158 new InvalidateOnAnimationRunnable(); 6159 6160 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6161 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6162 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6163 } 6164 6165 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6166 long delayMilliseconds) { 6167 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6168 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6169 } 6170 6171 public void dispatchInvalidateOnAnimation(View view) { 6172 mInvalidateOnAnimationRunnable.addView(view); 6173 } 6174 6175 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6176 mInvalidateOnAnimationRunnable.addViewRect(info); 6177 } 6178 6179 public void cancelInvalidate(View view) { 6180 mHandler.removeMessages(MSG_INVALIDATE, view); 6181 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6182 // them to the pool 6183 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6184 mInvalidateOnAnimationRunnable.removeView(view); 6185 } 6186 6187 public void dispatchInputEvent(InputEvent event) { 6188 dispatchInputEvent(event, null); 6189 } 6190 6191 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6192 SomeArgs args = SomeArgs.obtain(); 6193 args.arg1 = event; 6194 args.arg2 = receiver; 6195 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6196 msg.setAsynchronous(true); 6197 mHandler.sendMessage(msg); 6198 } 6199 6200 public void synthesizeInputEvent(InputEvent event) { 6201 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6202 msg.setAsynchronous(true); 6203 mHandler.sendMessage(msg); 6204 } 6205 6206 public void dispatchKeyFromIme(KeyEvent event) { 6207 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6208 msg.setAsynchronous(true); 6209 mHandler.sendMessage(msg); 6210 } 6211 6212 /** 6213 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6214 * 6215 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6216 * passes in. 6217 */ 6218 public void dispatchUnhandledInputEvent(InputEvent event) { 6219 if (event instanceof MotionEvent) { 6220 event = MotionEvent.obtain((MotionEvent) event); 6221 } 6222 synthesizeInputEvent(event); 6223 } 6224 6225 public void dispatchAppVisibility(boolean visible) { 6226 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6227 msg.arg1 = visible ? 1 : 0; 6228 mHandler.sendMessage(msg); 6229 } 6230 6231 public void dispatchGetNewSurface() { 6232 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6233 mHandler.sendMessage(msg); 6234 } 6235 6236 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6237 Message msg = Message.obtain(); 6238 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6239 msg.arg1 = hasFocus ? 1 : 0; 6240 msg.arg2 = inTouchMode ? 1 : 0; 6241 mHandler.sendMessage(msg); 6242 } 6243 6244 public void dispatchWindowShown() { 6245 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6246 } 6247 6248 public void dispatchCloseSystemDialogs(String reason) { 6249 Message msg = Message.obtain(); 6250 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6251 msg.obj = reason; 6252 mHandler.sendMessage(msg); 6253 } 6254 6255 public void dispatchDragEvent(DragEvent event) { 6256 final int what; 6257 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6258 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6259 mHandler.removeMessages(what); 6260 } else { 6261 what = MSG_DISPATCH_DRAG_EVENT; 6262 } 6263 Message msg = mHandler.obtainMessage(what, event); 6264 mHandler.sendMessage(msg); 6265 } 6266 6267 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6268 int localValue, int localChanges) { 6269 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6270 args.seq = seq; 6271 args.globalVisibility = globalVisibility; 6272 args.localValue = localValue; 6273 args.localChanges = localChanges; 6274 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6275 } 6276 6277 public void dispatchCheckFocus() { 6278 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6279 // This will result in a call to checkFocus() below. 6280 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6281 } 6282 } 6283 6284 /** 6285 * Post a callback to send a 6286 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6287 * This event is send at most once every 6288 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6289 */ 6290 private void postSendWindowContentChangedCallback(View source, int changeType) { 6291 if (mSendWindowContentChangedAccessibilityEvent == null) { 6292 mSendWindowContentChangedAccessibilityEvent = 6293 new SendWindowContentChangedAccessibilityEvent(); 6294 } 6295 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6296 } 6297 6298 /** 6299 * Remove a posted callback to send a 6300 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6301 */ 6302 private void removeSendWindowContentChangedCallback() { 6303 if (mSendWindowContentChangedAccessibilityEvent != null) { 6304 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6305 } 6306 } 6307 6308 @Override 6309 public boolean showContextMenuForChild(View originalView) { 6310 return false; 6311 } 6312 6313 @Override 6314 public boolean showContextMenuForChild(View originalView, float x, float y) { 6315 return false; 6316 } 6317 6318 @Override 6319 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6320 return null; 6321 } 6322 6323 @Override 6324 public ActionMode startActionModeForChild( 6325 View originalView, ActionMode.Callback callback, int type) { 6326 return null; 6327 } 6328 6329 @Override 6330 public void createContextMenu(ContextMenu menu) { 6331 } 6332 6333 @Override 6334 public void childDrawableStateChanged(View child) { 6335 } 6336 6337 @Override 6338 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6339 if (mView == null || mStopped || mPausedForTransition) { 6340 return false; 6341 } 6342 // Intercept accessibility focus events fired by virtual nodes to keep 6343 // track of accessibility focus position in such nodes. 6344 final int eventType = event.getEventType(); 6345 switch (eventType) { 6346 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6347 final long sourceNodeId = event.getSourceNodeId(); 6348 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6349 sourceNodeId); 6350 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6351 if (source != null) { 6352 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6353 if (provider != null) { 6354 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6355 sourceNodeId); 6356 final AccessibilityNodeInfo node; 6357 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6358 node = provider.createAccessibilityNodeInfo( 6359 AccessibilityNodeProvider.HOST_VIEW_ID); 6360 } else { 6361 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6362 } 6363 setAccessibilityFocus(source, node); 6364 } 6365 } 6366 } break; 6367 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6368 final long sourceNodeId = event.getSourceNodeId(); 6369 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6370 sourceNodeId); 6371 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6372 if (source != null) { 6373 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6374 if (provider != null) { 6375 setAccessibilityFocus(null, null); 6376 } 6377 } 6378 } break; 6379 6380 6381 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6382 handleWindowContentChangedEvent(event); 6383 } break; 6384 } 6385 mAccessibilityManager.sendAccessibilityEvent(event); 6386 return true; 6387 } 6388 6389 /** 6390 * Updates the focused virtual view, when necessary, in response to a 6391 * content changed event. 6392 * <p> 6393 * This is necessary to get updated bounds after a position change. 6394 * 6395 * @param event an accessibility event of type 6396 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6397 */ 6398 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6399 final View focusedHost = mAccessibilityFocusedHost; 6400 if (focusedHost == null || mAccessibilityFocusedVirtualView == null) { 6401 // No virtual view focused, nothing to do here. 6402 return; 6403 } 6404 6405 final AccessibilityNodeProvider provider = focusedHost.getAccessibilityNodeProvider(); 6406 if (provider == null) { 6407 // Error state: virtual view with no provider. Clear focus. 6408 mAccessibilityFocusedHost = null; 6409 mAccessibilityFocusedVirtualView = null; 6410 focusedHost.clearAccessibilityFocusNoCallbacks(); 6411 return; 6412 } 6413 6414 // We only care about change types that may affect the bounds of the 6415 // focused virtual view. 6416 final int changes = event.getContentChangeTypes(); 6417 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6418 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6419 return; 6420 } 6421 6422 final long eventSourceNodeId = event.getSourceNodeId(); 6423 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6424 6425 // Search up the tree for subtree containment. 6426 boolean hostInSubtree = false; 6427 View root = mAccessibilityFocusedHost; 6428 while (root != null && !hostInSubtree) { 6429 if (changedViewId == root.getAccessibilityViewId()) { 6430 hostInSubtree = true; 6431 } else { 6432 final ViewParent parent = root.getParent(); 6433 if (parent instanceof View) { 6434 root = (View) parent; 6435 } else { 6436 root = null; 6437 } 6438 } 6439 } 6440 6441 // We care only about changes in subtrees containing the host view. 6442 if (!hostInSubtree) { 6443 return; 6444 } 6445 6446 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6447 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6448 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6449 // TODO: Should we clear the focused virtual view? 6450 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6451 } 6452 6453 // Refresh the node for the focused virtual view. 6454 final Rect oldBounds = mTempRect; 6455 mAccessibilityFocusedVirtualView.getBoundsInScreen(oldBounds); 6456 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6457 if (mAccessibilityFocusedVirtualView == null) { 6458 // Error state: The node no longer exists. Clear focus. 6459 mAccessibilityFocusedHost = null; 6460 focusedHost.clearAccessibilityFocusNoCallbacks(); 6461 6462 // This will probably fail, but try to keep the provider's internal 6463 // state consistent by clearing focus. 6464 provider.performAction(focusedChildId, 6465 AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS.getId(), null); 6466 invalidateRectOnScreen(oldBounds); 6467 } else { 6468 // The node was refreshed, invalidate bounds if necessary. 6469 final Rect newBounds = mAccessibilityFocusedVirtualView.getBoundsInScreen(); 6470 if (!oldBounds.equals(newBounds)) { 6471 oldBounds.union(newBounds); 6472 invalidateRectOnScreen(oldBounds); 6473 } 6474 } 6475 } 6476 6477 @Override 6478 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6479 postSendWindowContentChangedCallback(source, changeType); 6480 } 6481 6482 @Override 6483 public boolean canResolveLayoutDirection() { 6484 return true; 6485 } 6486 6487 @Override 6488 public boolean isLayoutDirectionResolved() { 6489 return true; 6490 } 6491 6492 @Override 6493 public int getLayoutDirection() { 6494 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6495 } 6496 6497 @Override 6498 public boolean canResolveTextDirection() { 6499 return true; 6500 } 6501 6502 @Override 6503 public boolean isTextDirectionResolved() { 6504 return true; 6505 } 6506 6507 @Override 6508 public int getTextDirection() { 6509 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6510 } 6511 6512 @Override 6513 public boolean canResolveTextAlignment() { 6514 return true; 6515 } 6516 6517 @Override 6518 public boolean isTextAlignmentResolved() { 6519 return true; 6520 } 6521 6522 @Override 6523 public int getTextAlignment() { 6524 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6525 } 6526 6527 private View getCommonPredecessor(View first, View second) { 6528 if (mTempHashSet == null) { 6529 mTempHashSet = new HashSet<View>(); 6530 } 6531 HashSet<View> seen = mTempHashSet; 6532 seen.clear(); 6533 View firstCurrent = first; 6534 while (firstCurrent != null) { 6535 seen.add(firstCurrent); 6536 ViewParent firstCurrentParent = firstCurrent.mParent; 6537 if (firstCurrentParent instanceof View) { 6538 firstCurrent = (View) firstCurrentParent; 6539 } else { 6540 firstCurrent = null; 6541 } 6542 } 6543 View secondCurrent = second; 6544 while (secondCurrent != null) { 6545 if (seen.contains(secondCurrent)) { 6546 seen.clear(); 6547 return secondCurrent; 6548 } 6549 ViewParent secondCurrentParent = secondCurrent.mParent; 6550 if (secondCurrentParent instanceof View) { 6551 secondCurrent = (View) secondCurrentParent; 6552 } else { 6553 secondCurrent = null; 6554 } 6555 } 6556 seen.clear(); 6557 return null; 6558 } 6559 6560 void checkThread() { 6561 if (mThread != Thread.currentThread()) { 6562 throw new CalledFromWrongThreadException( 6563 "Only the original thread that created a view hierarchy can touch its views."); 6564 } 6565 } 6566 6567 @Override 6568 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6569 // ViewAncestor never intercepts touch event, so this can be a no-op 6570 } 6571 6572 @Override 6573 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6574 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6575 if (rectangle != null) { 6576 mTempRect.set(rectangle); 6577 mTempRect.offset(0, -mCurScrollY); 6578 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6579 try { 6580 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6581 } catch (RemoteException re) { 6582 /* ignore */ 6583 } 6584 } 6585 return scrolled; 6586 } 6587 6588 @Override 6589 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6590 // Do nothing. 6591 } 6592 6593 @Override 6594 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6595 return false; 6596 } 6597 6598 @Override 6599 public void onStopNestedScroll(View target) { 6600 } 6601 6602 @Override 6603 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6604 } 6605 6606 @Override 6607 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6608 int dxUnconsumed, int dyUnconsumed) { 6609 } 6610 6611 @Override 6612 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6613 } 6614 6615 @Override 6616 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6617 return false; 6618 } 6619 6620 @Override 6621 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6622 return false; 6623 } 6624 6625 @Override 6626 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6627 return false; 6628 } 6629 6630 /** 6631 * Force the window to report its next draw. 6632 * <p> 6633 * This method is only supposed to be used to speed up the interaction from SystemUI and window 6634 * manager when waiting for the first frame to be drawn when turning on the screen. DO NOT USE 6635 * unless you fully understand this interaction. 6636 * @hide 6637 */ 6638 public void setReportNextDraw() { 6639 mReportNextDraw = true; 6640 invalidate(); 6641 } 6642 6643 void changeCanvasOpacity(boolean opaque) { 6644 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6645 if (mAttachInfo.mHardwareRenderer != null) { 6646 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6647 } 6648 } 6649 6650 long getNextFrameNumber() { 6651 long frameNumber = -1; 6652 if (mSurfaceHolder != null) { 6653 mSurfaceHolder.mSurfaceLock.lock(); 6654 } 6655 if (mSurface.isValid()) { 6656 frameNumber = mSurface.getNextFrameNumber(); 6657 } 6658 if (mSurfaceHolder != null) { 6659 mSurfaceHolder.mSurfaceLock.unlock(); 6660 } 6661 return frameNumber; 6662 } 6663 6664 class TakenSurfaceHolder extends BaseSurfaceHolder { 6665 @Override 6666 public boolean onAllowLockCanvas() { 6667 return mDrawingAllowed; 6668 } 6669 6670 @Override 6671 public void onRelayoutContainer() { 6672 // Not currently interesting -- from changing between fixed and layout size. 6673 } 6674 6675 @Override 6676 public void setFormat(int format) { 6677 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6678 } 6679 6680 @Override 6681 public void setType(int type) { 6682 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6683 } 6684 6685 @Override 6686 public void onUpdateSurface() { 6687 // We take care of format and type changes on our own. 6688 throw new IllegalStateException("Shouldn't be here"); 6689 } 6690 6691 @Override 6692 public boolean isCreating() { 6693 return mIsCreating; 6694 } 6695 6696 @Override 6697 public void setFixedSize(int width, int height) { 6698 throw new UnsupportedOperationException( 6699 "Currently only support sizing from layout"); 6700 } 6701 6702 @Override 6703 public void setKeepScreenOn(boolean screenOn) { 6704 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6705 } 6706 } 6707 6708 static class W extends IWindow.Stub { 6709 private final WeakReference<ViewRootImpl> mViewAncestor; 6710 private final IWindowSession mWindowSession; 6711 6712 W(ViewRootImpl viewAncestor) { 6713 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6714 mWindowSession = viewAncestor.mWindowSession; 6715 } 6716 6717 @Override 6718 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6719 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 6720 Configuration newConfig, Rect backDropFrame) { 6721 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6722 if (viewAncestor != null) { 6723 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6724 visibleInsets, stableInsets, outsets, reportDraw, newConfig, backDropFrame); 6725 } 6726 } 6727 6728 @Override 6729 public void moved(int newX, int newY) { 6730 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6731 if (viewAncestor != null) { 6732 viewAncestor.dispatchMoved(newX, newY); 6733 } 6734 } 6735 6736 @Override 6737 public void dispatchAppVisibility(boolean visible) { 6738 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6739 if (viewAncestor != null) { 6740 viewAncestor.dispatchAppVisibility(visible); 6741 } 6742 } 6743 6744 @Override 6745 public void dispatchGetNewSurface() { 6746 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6747 if (viewAncestor != null) { 6748 viewAncestor.dispatchGetNewSurface(); 6749 } 6750 } 6751 6752 @Override 6753 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6754 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6755 if (viewAncestor != null) { 6756 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6757 } 6758 } 6759 6760 private static int checkCallingPermission(String permission) { 6761 try { 6762 return ActivityManagerNative.getDefault().checkPermission( 6763 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6764 } catch (RemoteException e) { 6765 return PackageManager.PERMISSION_DENIED; 6766 } 6767 } 6768 6769 @Override 6770 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6771 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6772 if (viewAncestor != null) { 6773 final View view = viewAncestor.mView; 6774 if (view != null) { 6775 if (checkCallingPermission(Manifest.permission.DUMP) != 6776 PackageManager.PERMISSION_GRANTED) { 6777 throw new SecurityException("Insufficient permissions to invoke" 6778 + " executeCommand() from pid=" + Binder.getCallingPid() 6779 + ", uid=" + Binder.getCallingUid()); 6780 } 6781 6782 OutputStream clientStream = null; 6783 try { 6784 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6785 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6786 } catch (IOException e) { 6787 e.printStackTrace(); 6788 } finally { 6789 if (clientStream != null) { 6790 try { 6791 clientStream.close(); 6792 } catch (IOException e) { 6793 e.printStackTrace(); 6794 } 6795 } 6796 } 6797 } 6798 } 6799 } 6800 6801 @Override 6802 public void closeSystemDialogs(String reason) { 6803 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6804 if (viewAncestor != null) { 6805 viewAncestor.dispatchCloseSystemDialogs(reason); 6806 } 6807 } 6808 6809 @Override 6810 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6811 boolean sync) { 6812 if (sync) { 6813 try { 6814 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6815 } catch (RemoteException e) { 6816 } 6817 } 6818 } 6819 6820 @Override 6821 public void dispatchWallpaperCommand(String action, int x, int y, 6822 int z, Bundle extras, boolean sync) { 6823 if (sync) { 6824 try { 6825 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6826 } catch (RemoteException e) { 6827 } 6828 } 6829 } 6830 6831 /* Drag/drop */ 6832 @Override 6833 public void dispatchDragEvent(DragEvent event) { 6834 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6835 if (viewAncestor != null) { 6836 viewAncestor.dispatchDragEvent(event); 6837 } 6838 } 6839 6840 @Override 6841 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6842 int localValue, int localChanges) { 6843 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6844 if (viewAncestor != null) { 6845 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6846 localValue, localChanges); 6847 } 6848 } 6849 6850 @Override 6851 public void dispatchWindowShown() { 6852 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6853 if (viewAncestor != null) { 6854 viewAncestor.dispatchWindowShown(); 6855 } 6856 } 6857 } 6858 6859 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6860 public CalledFromWrongThreadException(String msg) { 6861 super(msg); 6862 } 6863 } 6864 6865 static HandlerActionQueue getRunQueue() { 6866 HandlerActionQueue rq = sRunQueues.get(); 6867 if (rq != null) { 6868 return rq; 6869 } 6870 rq = new HandlerActionQueue(); 6871 sRunQueues.set(rq); 6872 return rq; 6873 } 6874 6875 /** 6876 * Start a drag resizing which will inform all listeners that a window resize is taking place. 6877 */ 6878 private void startDragResizing(Rect initialBounds) { 6879 if (!mDragResizing) { 6880 mDragResizing = true; 6881 synchronized (mWindowCallbacks) { 6882 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6883 mWindowCallbacks.get(i).onWindowDragResizeStart(initialBounds); 6884 } 6885 } 6886 mFullRedrawNeeded = true; 6887 } 6888 } 6889 6890 /** 6891 * End a drag resize which will inform all listeners that a window resize has ended. 6892 */ 6893 private void endDragResizing() { 6894 if (mDragResizing) { 6895 mDragResizing = false; 6896 synchronized (mWindowCallbacks) { 6897 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6898 mWindowCallbacks.get(i).onWindowDragResizeEnd(); 6899 } 6900 } 6901 mFullRedrawNeeded = true; 6902 } 6903 } 6904 6905 private boolean updateContentDrawBounds() { 6906 boolean updated = false; 6907 synchronized (mWindowCallbacks) { 6908 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6909 updated |= mWindowCallbacks.get(i).onContentDrawn( 6910 mWindowAttributes.surfaceInsets.left, 6911 mWindowAttributes.surfaceInsets.top, 6912 mWidth, mHeight); 6913 } 6914 } 6915 return updated | (mDragResizing && mReportNextDraw); 6916 } 6917 6918 private void requestDrawWindow() { 6919 if (mReportNextDraw) { 6920 mWindowDrawCountDown = new CountDownLatch(mWindowCallbacks.size()); 6921 } 6922 synchronized (mWindowCallbacks) { 6923 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6924 mWindowCallbacks.get(i).onRequestDraw(mReportNextDraw); 6925 } 6926 } 6927 } 6928 6929 /** 6930 * Class for managing the accessibility interaction connection 6931 * based on the global accessibility state. 6932 */ 6933 final class AccessibilityInteractionConnectionManager 6934 implements AccessibilityStateChangeListener { 6935 @Override 6936 public void onAccessibilityStateChanged(boolean enabled) { 6937 if (enabled) { 6938 ensureConnection(); 6939 if (mAttachInfo.mHasWindowFocus) { 6940 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6941 View focusedView = mView.findFocus(); 6942 if (focusedView != null && focusedView != mView) { 6943 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6944 } 6945 } 6946 } else { 6947 ensureNoConnection(); 6948 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6949 } 6950 } 6951 6952 public void ensureConnection() { 6953 final boolean registered = 6954 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6955 if (!registered) { 6956 mAttachInfo.mAccessibilityWindowId = 6957 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6958 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6959 } 6960 } 6961 6962 public void ensureNoConnection() { 6963 final boolean registered = 6964 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6965 if (registered) { 6966 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6967 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6968 } 6969 } 6970 } 6971 6972 final class HighContrastTextManager implements HighTextContrastChangeListener { 6973 HighContrastTextManager() { 6974 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6975 } 6976 @Override 6977 public void onHighTextContrastStateChanged(boolean enabled) { 6978 mAttachInfo.mHighContrastText = enabled; 6979 6980 // Destroy Displaylists so they can be recreated with high contrast recordings 6981 destroyHardwareResources(); 6982 6983 // Schedule redraw, which will rerecord + redraw all text 6984 invalidate(); 6985 } 6986 } 6987 6988 /** 6989 * This class is an interface this ViewAncestor provides to the 6990 * AccessibilityManagerService to the latter can interact with 6991 * the view hierarchy in this ViewAncestor. 6992 */ 6993 static final class AccessibilityInteractionConnection 6994 extends IAccessibilityInteractionConnection.Stub { 6995 private final WeakReference<ViewRootImpl> mViewRootImpl; 6996 6997 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6998 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6999 } 7000 7001 @Override 7002 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 7003 Region interactiveRegion, int interactionId, 7004 IAccessibilityInteractionConnectionCallback callback, int flags, 7005 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7006 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7007 if (viewRootImpl != null && viewRootImpl.mView != null) { 7008 viewRootImpl.getAccessibilityInteractionController() 7009 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 7010 interactiveRegion, interactionId, callback, flags, interrogatingPid, 7011 interrogatingTid, spec); 7012 } else { 7013 // We cannot make the call and notify the caller so it does not wait. 7014 try { 7015 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 7016 } catch (RemoteException re) { 7017 /* best effort - ignore */ 7018 } 7019 } 7020 } 7021 7022 @Override 7023 public void performAccessibilityAction(long accessibilityNodeId, int action, 7024 Bundle arguments, int interactionId, 7025 IAccessibilityInteractionConnectionCallback callback, int flags, 7026 int interrogatingPid, long interrogatingTid) { 7027 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7028 if (viewRootImpl != null && viewRootImpl.mView != null) { 7029 viewRootImpl.getAccessibilityInteractionController() 7030 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 7031 interactionId, callback, flags, interrogatingPid, interrogatingTid); 7032 } else { 7033 // We cannot make the call and notify the caller so it does not wait. 7034 try { 7035 callback.setPerformAccessibilityActionResult(false, interactionId); 7036 } catch (RemoteException re) { 7037 /* best effort - ignore */ 7038 } 7039 } 7040 } 7041 7042 @Override 7043 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 7044 String viewId, Region interactiveRegion, int interactionId, 7045 IAccessibilityInteractionConnectionCallback callback, int flags, 7046 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7047 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7048 if (viewRootImpl != null && viewRootImpl.mView != null) { 7049 viewRootImpl.getAccessibilityInteractionController() 7050 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 7051 viewId, interactiveRegion, interactionId, callback, flags, 7052 interrogatingPid, interrogatingTid, spec); 7053 } else { 7054 // We cannot make the call and notify the caller so it does not wait. 7055 try { 7056 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7057 } catch (RemoteException re) { 7058 /* best effort - ignore */ 7059 } 7060 } 7061 } 7062 7063 @Override 7064 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 7065 Region interactiveRegion, int interactionId, 7066 IAccessibilityInteractionConnectionCallback callback, int flags, 7067 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7068 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7069 if (viewRootImpl != null && viewRootImpl.mView != null) { 7070 viewRootImpl.getAccessibilityInteractionController() 7071 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 7072 interactiveRegion, interactionId, callback, flags, interrogatingPid, 7073 interrogatingTid, spec); 7074 } else { 7075 // We cannot make the call and notify the caller so it does not wait. 7076 try { 7077 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 7078 } catch (RemoteException re) { 7079 /* best effort - ignore */ 7080 } 7081 } 7082 } 7083 7084 @Override 7085 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 7086 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7087 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7088 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7089 if (viewRootImpl != null && viewRootImpl.mView != null) { 7090 viewRootImpl.getAccessibilityInteractionController() 7091 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 7092 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7093 spec); 7094 } else { 7095 // We cannot make the call and notify the caller so it does not wait. 7096 try { 7097 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7098 } catch (RemoteException re) { 7099 /* best effort - ignore */ 7100 } 7101 } 7102 } 7103 7104 @Override 7105 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 7106 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7107 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7108 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7109 if (viewRootImpl != null && viewRootImpl.mView != null) { 7110 viewRootImpl.getAccessibilityInteractionController() 7111 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 7112 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7113 spec); 7114 } else { 7115 // We cannot make the call and notify the caller so it does not wait. 7116 try { 7117 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7118 } catch (RemoteException re) { 7119 /* best effort - ignore */ 7120 } 7121 } 7122 } 7123 } 7124 7125 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 7126 private int mChangeTypes = 0; 7127 7128 public View mSource; 7129 public long mLastEventTimeMillis; 7130 7131 @Override 7132 public void run() { 7133 // The accessibility may be turned off while we were waiting so check again. 7134 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7135 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7136 AccessibilityEvent event = AccessibilityEvent.obtain(); 7137 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7138 event.setContentChangeTypes(mChangeTypes); 7139 mSource.sendAccessibilityEventUnchecked(event); 7140 } else { 7141 mLastEventTimeMillis = 0; 7142 } 7143 // In any case reset to initial state. 7144 mSource.resetSubtreeAccessibilityStateChanged(); 7145 mSource = null; 7146 mChangeTypes = 0; 7147 } 7148 7149 public void runOrPost(View source, int changeType) { 7150 if (mSource != null) { 7151 // If there is no common predecessor, then mSource points to 7152 // a removed view, hence in this case always prefer the source. 7153 View predecessor = getCommonPredecessor(mSource, source); 7154 mSource = (predecessor != null) ? predecessor : source; 7155 mChangeTypes |= changeType; 7156 return; 7157 } 7158 mSource = source; 7159 mChangeTypes = changeType; 7160 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7161 final long minEventIntevalMillis = 7162 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7163 if (timeSinceLastMillis >= minEventIntevalMillis) { 7164 mSource.removeCallbacks(this); 7165 run(); 7166 } else { 7167 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7168 } 7169 } 7170 } 7171} 7172