ViewRootImpl.java revision 678a1252b4f3cdc18d20b411c05a4320d1d9b719
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.app.SearchManager; 23import android.content.ActivityNotFoundException; 24import android.content.ClipDescription; 25import android.content.ComponentCallbacks; 26import android.content.ComponentCallbacks2; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.ApplicationInfo; 30import android.content.pm.PackageManager; 31import android.content.res.CompatibilityInfo; 32import android.content.res.Configuration; 33import android.content.res.Resources; 34import android.graphics.Canvas; 35import android.graphics.Paint; 36import android.graphics.PixelFormat; 37import android.graphics.Point; 38import android.graphics.PointF; 39import android.graphics.PorterDuff; 40import android.graphics.Rect; 41import android.graphics.Region; 42import android.graphics.drawable.Drawable; 43import android.media.AudioManager; 44import android.os.Binder; 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.PowerManager; 52import android.os.Process; 53import android.os.RemoteException; 54import android.os.SystemClock; 55import android.os.SystemProperties; 56import android.os.Trace; 57import android.os.UserHandle; 58import android.util.AndroidRuntimeException; 59import android.util.DisplayMetrics; 60import android.util.Log; 61import android.util.Slog; 62import android.util.TypedValue; 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.AccessibilityNodeInfo; 69import android.view.accessibility.AccessibilityNodeProvider; 70import android.view.accessibility.IAccessibilityInteractionConnection; 71import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 72import android.view.animation.AccelerateDecelerateInterpolator; 73import android.view.animation.Interpolator; 74import android.view.inputmethod.InputConnection; 75import android.view.inputmethod.InputMethodManager; 76import android.widget.Scroller; 77 78import com.android.internal.R; 79import com.android.internal.os.SomeArgs; 80import com.android.internal.policy.PolicyManager; 81import com.android.internal.view.BaseSurfaceHolder; 82import com.android.internal.view.RootViewSurfaceTaker; 83 84import java.io.IOException; 85import java.io.OutputStream; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.HashSet; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerGlobal}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 private static final boolean DEBUG_INPUT_PROCESSING = false || LOCAL_LOGV; 114 115 private static final boolean USE_RENDER_THREAD = false; 116 117 /** 118 * Set this system property to true to force the view hierarchy to render 119 * at 60 Hz. This can be used to measure the potential framerate. 120 */ 121 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 130 131 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 132 static boolean sFirstDrawComplete = false; 133 134 static final ArrayList<ComponentCallbacks> sConfigCallbacks 135 = new ArrayList<ComponentCallbacks>(); 136 137 private static boolean sUseRenderThread = false; 138 private static boolean sRenderThreadQueried = false; 139 private static final Object[] sRenderThreadQueryLock = new Object[0]; 140 141 final Context mContext; 142 final IWindowSession mWindowSession; 143 final Display mDisplay; 144 final String mBasePackageName; 145 146 final int[] mTmpLocation = new int[2]; 147 148 final TypedValue mTmpValue = new TypedValue(); 149 150 final Thread mThread; 151 152 final WindowLeaked mLocation; 153 154 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 155 156 final W mWindow; 157 158 final int mTargetSdkVersion; 159 160 int mSeq; 161 162 View mView; 163 164 View mAccessibilityFocusedHost; 165 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 166 167 int mViewVisibility; 168 boolean mAppVisible = true; 169 int mOrigWindowType = -1; 170 171 // Set to true if the owner of this window is in the stopped state, 172 // so the window should no longer be active. 173 boolean mStopped = false; 174 175 boolean mLastInCompatMode = false; 176 177 SurfaceHolder.Callback2 mSurfaceHolderCallback; 178 BaseSurfaceHolder mSurfaceHolder; 179 boolean mIsCreating; 180 boolean mDrawingAllowed; 181 182 final Region mTransparentRegion; 183 final Region mPreviousTransparentRegion; 184 185 int mWidth; 186 int mHeight; 187 Rect mDirty; 188 final Rect mCurrentDirty = new Rect(); 189 boolean mIsAnimating; 190 191 CompatibilityInfo.Translator mTranslator; 192 193 final View.AttachInfo mAttachInfo; 194 InputChannel mInputChannel; 195 InputQueue.Callback mInputQueueCallback; 196 InputQueue mInputQueue; 197 FallbackEventHandler mFallbackEventHandler; 198 Choreographer mChoreographer; 199 200 final Rect mTempRect; // used in the transaction to not thrash the heap. 201 final Rect mVisRect; // used to retrieve visible rect of focused view. 202 203 boolean mTraversalScheduled; 204 int mTraversalBarrier; 205 boolean mWillDrawSoon; 206 /** Set to true while in performTraversals for detecting when die(true) is called from internal 207 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 208 boolean mIsInTraversal; 209 boolean mFitSystemWindowsRequested; 210 boolean mLayoutRequested; 211 boolean mFirst; 212 boolean mReportNextDraw; 213 boolean mFullRedrawNeeded; 214 boolean mNewSurfaceNeeded; 215 boolean mHasHadWindowFocus; 216 boolean mLastWasImTarget; 217 boolean mWindowsAnimating; 218 boolean mIsDrawing; 219 int mLastSystemUiVisibility; 220 int mClientWindowLayoutFlags; 221 boolean mLastOverscanRequested; 222 223 // Pool of queued input events. 224 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 225 private QueuedInputEvent mQueuedInputEventPool; 226 private int mQueuedInputEventPoolSize; 227 228 /* Input event queue. 229 * Pending input events are input events waiting to be delivered to the input stages 230 * and handled by the application. 231 */ 232 QueuedInputEvent mPendingInputEventHead; 233 QueuedInputEvent mPendingInputEventTail; 234 int mPendingInputEventCount; 235 boolean mProcessInputEventsScheduled; 236 String mPendingInputEventQueueLengthCounterName = "pq"; 237 238 InputStage mFirstInputStage; 239 InputStage mFirstPostImeInputStage; 240 241 boolean mWindowAttributesChanged = false; 242 int mWindowAttributesChangesFlag = 0; 243 244 // These can be accessed by any thread, must be protected with a lock. 245 // Surface can never be reassigned or cleared (use Surface.clear()). 246 private final Surface mSurface = new Surface(); 247 248 boolean mAdded; 249 boolean mAddedTouchMode; 250 251 final CompatibilityInfoHolder mCompatibilityInfo; 252 253 // These are accessed by multiple threads. 254 final Rect mWinFrame; // frame given by window manager. 255 256 final Rect mPendingOverscanInsets = new Rect(); 257 final Rect mPendingVisibleInsets = new Rect(); 258 final Rect mPendingContentInsets = new Rect(); 259 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 260 = new ViewTreeObserver.InternalInsetsInfo(); 261 262 final Rect mFitSystemWindowsInsets = new Rect(); 263 264 final Configuration mLastConfiguration = new Configuration(); 265 final Configuration mPendingConfiguration = new Configuration(); 266 267 boolean mScrollMayChange; 268 int mSoftInputMode; 269 WeakReference<View> mLastScrolledFocus; 270 int mScrollY; 271 int mCurScrollY; 272 Scroller mScroller; 273 HardwareLayer mResizeBuffer; 274 long mResizeBufferStartTime; 275 int mResizeBufferDuration; 276 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 277 private ArrayList<LayoutTransition> mPendingTransitions; 278 279 final ViewConfiguration mViewConfiguration; 280 281 /* Drag/drop */ 282 ClipDescription mDragDescription; 283 View mCurrentDragView; 284 volatile Object mLocalDragState; 285 final PointF mDragPoint = new PointF(); 286 final PointF mLastTouchPoint = new PointF(); 287 288 private boolean mProfileRendering; 289 private Choreographer.FrameCallback mRenderProfiler; 290 private boolean mRenderProfilingEnabled; 291 292 // Variables to track frames per second, enabled via DEBUG_FPS flag 293 private long mFpsStartTime = -1; 294 private long mFpsPrevTime = -1; 295 private int mFpsNumFrames; 296 297 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 298 299 /** 300 * see {@link #playSoundEffect(int)} 301 */ 302 AudioManager mAudioManager; 303 304 final AccessibilityManager mAccessibilityManager; 305 306 AccessibilityInteractionController mAccessibilityInteractionController; 307 308 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 309 310 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 311 312 HashSet<View> mTempHashSet; 313 314 private final int mDensity; 315 private final int mNoncompatDensity; 316 317 private boolean mInLayout = false; 318 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 319 boolean mHandlingLayoutInLayoutRequest = false; 320 321 private int mViewLayoutDirectionInitial; 322 323 /** 324 * Consistency verifier for debugging purposes. 325 */ 326 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 327 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 328 new InputEventConsistencyVerifier(this, 0) : null; 329 330 static final class SystemUiVisibilityInfo { 331 int seq; 332 int globalVisibility; 333 int localValue; 334 int localChanges; 335 } 336 337 public ViewRootImpl(Context context, Display display) { 338 mContext = context; 339 mWindowSession = WindowManagerGlobal.getWindowSession(); 340 mDisplay = display; 341 mBasePackageName = context.getBasePackageName(); 342 343 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 344 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 345 346 mThread = Thread.currentThread(); 347 mLocation = new WindowLeaked(null); 348 mLocation.fillInStackTrace(); 349 mWidth = -1; 350 mHeight = -1; 351 mDirty = new Rect(); 352 mTempRect = new Rect(); 353 mVisRect = new Rect(); 354 mWinFrame = new Rect(); 355 mWindow = new W(this); 356 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 357 mViewVisibility = View.GONE; 358 mTransparentRegion = new Region(); 359 mPreviousTransparentRegion = new Region(); 360 mFirst = true; // true for the first time the view is added 361 mAdded = false; 362 mAccessibilityManager = AccessibilityManager.getInstance(context); 363 mAccessibilityInteractionConnectionManager = 364 new AccessibilityInteractionConnectionManager(); 365 mAccessibilityManager.addAccessibilityStateChangeListener( 366 mAccessibilityInteractionConnectionManager); 367 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 368 mViewConfiguration = ViewConfiguration.get(context); 369 mDensity = context.getResources().getDisplayMetrics().densityDpi; 370 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 371 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 372 mChoreographer = Choreographer.getInstance(); 373 374 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 375 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 376 loadSystemProperties(); 377 } 378 379 /** 380 * @return True if the application requests the use of a separate render thread, 381 * false otherwise 382 */ 383 private static boolean isRenderThreadRequested(Context context) { 384 if (USE_RENDER_THREAD) { 385 synchronized (sRenderThreadQueryLock) { 386 if (!sRenderThreadQueried) { 387 final PackageManager packageManager = context.getPackageManager(); 388 final String packageName = context.getApplicationInfo().packageName; 389 try { 390 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 391 PackageManager.GET_META_DATA); 392 if (applicationInfo.metaData != null) { 393 sUseRenderThread = applicationInfo.metaData.getBoolean( 394 "android.graphics.renderThread", false); 395 } 396 } catch (PackageManager.NameNotFoundException e) { 397 } finally { 398 sRenderThreadQueried = true; 399 } 400 } 401 return sUseRenderThread; 402 } 403 } else { 404 return false; 405 } 406 } 407 408 public static void addFirstDrawHandler(Runnable callback) { 409 synchronized (sFirstDrawHandlers) { 410 if (!sFirstDrawComplete) { 411 sFirstDrawHandlers.add(callback); 412 } 413 } 414 } 415 416 public static void addConfigCallback(ComponentCallbacks callback) { 417 synchronized (sConfigCallbacks) { 418 sConfigCallbacks.add(callback); 419 } 420 } 421 422 // FIXME for perf testing only 423 private boolean mProfile = false; 424 425 /** 426 * Call this to profile the next traversal call. 427 * FIXME for perf testing only. Remove eventually 428 */ 429 public void profile() { 430 mProfile = true; 431 } 432 433 /** 434 * Indicates whether we are in touch mode. Calling this method triggers an IPC 435 * call and should be avoided whenever possible. 436 * 437 * @return True, if the device is in touch mode, false otherwise. 438 * 439 * @hide 440 */ 441 static boolean isInTouchMode() { 442 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 443 if (windowSession != null) { 444 try { 445 return windowSession.getInTouchMode(); 446 } catch (RemoteException e) { 447 } 448 } 449 return false; 450 } 451 452 /** 453 * We have one child 454 */ 455 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 456 synchronized (this) { 457 if (mView == null) { 458 mView = view; 459 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 460 mFallbackEventHandler.setView(view); 461 mWindowAttributes.copyFrom(attrs); 462 if (mWindowAttributes.packageName == null) { 463 mWindowAttributes.packageName = mBasePackageName; 464 } 465 attrs = mWindowAttributes; 466 // Keep track of the actual window flags supplied by the client. 467 mClientWindowLayoutFlags = attrs.flags; 468 469 setAccessibilityFocus(null, null); 470 471 if (view instanceof RootViewSurfaceTaker) { 472 mSurfaceHolderCallback = 473 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 474 if (mSurfaceHolderCallback != null) { 475 mSurfaceHolder = new TakenSurfaceHolder(); 476 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 477 } 478 } 479 480 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 481 mTranslator = compatibilityInfo.getTranslator(); 482 483 // If the application owns the surface, don't enable hardware acceleration 484 if (mSurfaceHolder == null) { 485 enableHardwareAcceleration(mView.getContext(), attrs); 486 } 487 488 boolean restore = false; 489 if (mTranslator != null) { 490 mSurface.setCompatibilityTranslator(mTranslator); 491 restore = true; 492 attrs.backup(); 493 mTranslator.translateWindowLayout(attrs); 494 } 495 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 496 497 if (!compatibilityInfo.supportsScreen()) { 498 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 499 mLastInCompatMode = true; 500 } 501 502 mSoftInputMode = attrs.softInputMode; 503 mWindowAttributesChanged = true; 504 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 505 mAttachInfo.mRootView = view; 506 mAttachInfo.mScalingRequired = mTranslator != null; 507 mAttachInfo.mApplicationScale = 508 mTranslator == null ? 1.0f : mTranslator.applicationScale; 509 if (panelParentView != null) { 510 mAttachInfo.mPanelParentWindowToken 511 = panelParentView.getApplicationWindowToken(); 512 } 513 mAdded = true; 514 int res; /* = WindowManagerImpl.ADD_OKAY; */ 515 516 // Schedule the first layout -before- adding to the window 517 // manager, to make sure we do the relayout before receiving 518 // any other events from the system. 519 requestLayout(); 520 if ((mWindowAttributes.inputFeatures 521 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 522 mInputChannel = new InputChannel(); 523 } 524 try { 525 mOrigWindowType = mWindowAttributes.type; 526 mAttachInfo.mRecomputeGlobalAttributes = true; 527 collectViewAttributes(); 528 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 529 getHostVisibility(), mDisplay.getDisplayId(), 530 mAttachInfo.mContentInsets, mInputChannel); 531 } catch (RemoteException e) { 532 mAdded = false; 533 mView = null; 534 mAttachInfo.mRootView = null; 535 mInputChannel = null; 536 mFallbackEventHandler.setView(null); 537 unscheduleTraversals(); 538 setAccessibilityFocus(null, null); 539 throw new RuntimeException("Adding window failed", e); 540 } finally { 541 if (restore) { 542 attrs.restore(); 543 } 544 } 545 546 if (mTranslator != null) { 547 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 548 } 549 mPendingOverscanInsets.set(0, 0, 0, 0); 550 mPendingContentInsets.set(mAttachInfo.mContentInsets); 551 mPendingVisibleInsets.set(0, 0, 0, 0); 552 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 553 if (res < WindowManagerGlobal.ADD_OKAY) { 554 mAttachInfo.mRootView = null; 555 mAdded = false; 556 mFallbackEventHandler.setView(null); 557 unscheduleTraversals(); 558 setAccessibilityFocus(null, null); 559 switch (res) { 560 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 561 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 562 throw new WindowManager.BadTokenException( 563 "Unable to add window -- token " + attrs.token 564 + " is not valid; is your activity running?"); 565 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 566 throw new WindowManager.BadTokenException( 567 "Unable to add window -- token " + attrs.token 568 + " is not for an application"); 569 case WindowManagerGlobal.ADD_APP_EXITING: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- app for token " + attrs.token 572 + " is exiting"); 573 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- window " + mWindow 576 + " has already been added"); 577 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 578 // Silently ignore -- we would have just removed it 579 // right away, anyway. 580 return; 581 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 582 throw new WindowManager.BadTokenException( 583 "Unable to add window " + mWindow + 584 " -- another window of this type already exists"); 585 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 586 throw new WindowManager.BadTokenException( 587 "Unable to add window " + mWindow + 588 " -- permission denied for this window type"); 589 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 590 throw new WindowManager.InvalidDisplayException( 591 "Unable to add window " + mWindow + 592 " -- the specified display can not be found"); 593 } 594 throw new RuntimeException( 595 "Unable to add window -- unknown error code " + res); 596 } 597 598 if (view instanceof RootViewSurfaceTaker) { 599 mInputQueueCallback = 600 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 601 } 602 if (mInputChannel != null) { 603 if (mInputQueueCallback != null) { 604 mInputQueue = new InputQueue(mInputChannel); 605 mInputQueueCallback.onInputQueueCreated(mInputQueue); 606 } else { 607 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 608 Looper.myLooper()); 609 } 610 } 611 612 view.assignParent(this); 613 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 614 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 615 616 if (mAccessibilityManager.isEnabled()) { 617 mAccessibilityInteractionConnectionManager.ensureConnection(); 618 } 619 620 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 621 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 622 } 623 624 // Set up the input pipeline. 625 CharSequence counterSuffix = attrs.getTitle(); 626 InputStage syntheticStage = new SyntheticInputStage(); 627 InputStage viewPostImeStage = new ViewPostImeInputStage(syntheticStage); 628 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 629 "aq:native-post-ime:" + counterSuffix); 630 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 631 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 632 "aq:ime:" + counterSuffix); 633 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 634 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 635 "aq:native-pre-ime:" + counterSuffix); 636 637 mFirstInputStage = nativePreImeStage; 638 mFirstPostImeInputStage = earlyPostImeStage; 639 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 640 } 641 } 642 } 643 644 void destroyHardwareResources() { 645 if (mAttachInfo.mHardwareRenderer != null) { 646 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 647 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 648 } 649 mAttachInfo.mHardwareRenderer.destroy(false); 650 } 651 } 652 653 void terminateHardwareResources() { 654 if (mAttachInfo.mHardwareRenderer != null) { 655 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 656 mAttachInfo.mHardwareRenderer.destroy(false); 657 } 658 } 659 660 void destroyHardwareLayers() { 661 if (mThread != Thread.currentThread()) { 662 if (mAttachInfo.mHardwareRenderer != null && 663 mAttachInfo.mHardwareRenderer.isEnabled()) { 664 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 665 } 666 } else { 667 if (mAttachInfo.mHardwareRenderer != null && 668 mAttachInfo.mHardwareRenderer.isEnabled()) { 669 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 670 } 671 } 672 } 673 674 void pushHardwareLayerUpdate(HardwareLayer layer) { 675 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 676 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 677 } 678 } 679 680 public boolean attachFunctor(int functor) { 681 //noinspection SimplifiableIfStatement 682 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 683 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 684 } 685 return false; 686 } 687 688 public void detachFunctor(int functor) { 689 if (mAttachInfo.mHardwareRenderer != null) { 690 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 691 } 692 } 693 694 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 695 mAttachInfo.mHardwareAccelerated = false; 696 mAttachInfo.mHardwareAccelerationRequested = false; 697 698 // Don't enable hardware acceleration when the application is in compatibility mode 699 if (mTranslator != null) return; 700 701 // Try to enable hardware acceleration if requested 702 final boolean hardwareAccelerated = 703 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 704 705 if (hardwareAccelerated) { 706 if (!HardwareRenderer.isAvailable()) { 707 return; 708 } 709 710 // Persistent processes (including the system) should not do 711 // accelerated rendering on low-end devices. In that case, 712 // sRendererDisabled will be set. In addition, the system process 713 // itself should never do accelerated rendering. In that case, both 714 // sRendererDisabled and sSystemRendererDisabled are set. When 715 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 716 // can be used by code on the system process to escape that and enable 717 // HW accelerated drawing. (This is basically for the lock screen.) 718 719 final boolean fakeHwAccelerated = (attrs.privateFlags & 720 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 721 final boolean forceHwAccelerated = (attrs.privateFlags & 722 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 723 724 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 725 && forceHwAccelerated)) { 726 // Don't enable hardware acceleration when we're not on the main thread 727 if (!HardwareRenderer.sSystemRendererDisabled && 728 Looper.getMainLooper() != Looper.myLooper()) { 729 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 730 + "acceleration outside of the main thread, aborting"); 731 return; 732 } 733 734 final boolean renderThread = isRenderThreadRequested(context); 735 if (renderThread) { 736 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 737 } 738 739 if (mAttachInfo.mHardwareRenderer != null) { 740 mAttachInfo.mHardwareRenderer.destroy(true); 741 } 742 743 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 744 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 745 if (mAttachInfo.mHardwareRenderer != null) { 746 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 747 mAttachInfo.mHardwareAccelerated = 748 mAttachInfo.mHardwareAccelerationRequested = true; 749 } 750 } else if (fakeHwAccelerated) { 751 // The window had wanted to use hardware acceleration, but this 752 // is not allowed in its process. By setting this flag, it can 753 // still render as if it was accelerated. This is basically for 754 // the preview windows the window manager shows for launching 755 // applications, so they will look more like the app being launched. 756 mAttachInfo.mHardwareAccelerationRequested = true; 757 } 758 } 759 } 760 761 public View getView() { 762 return mView; 763 } 764 765 final WindowLeaked getLocation() { 766 return mLocation; 767 } 768 769 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 770 synchronized (this) { 771 int oldSoftInputMode = mWindowAttributes.softInputMode; 772 // Keep track of the actual window flags supplied by the client. 773 mClientWindowLayoutFlags = attrs.flags; 774 // preserve compatible window flag if exists. 775 int compatibleWindowFlag = 776 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 777 // transfer over system UI visibility values as they carry current state. 778 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 779 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 780 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 781 if (mWindowAttributes.packageName == null) { 782 mWindowAttributes.packageName = mBasePackageName; 783 } 784 mWindowAttributes.flags |= compatibleWindowFlag; 785 786 applyKeepScreenOnFlag(mWindowAttributes); 787 788 if (newView) { 789 mSoftInputMode = attrs.softInputMode; 790 requestLayout(); 791 } 792 // Don't lose the mode we last auto-computed. 793 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 794 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 795 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 796 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 797 | (oldSoftInputMode 798 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 799 } 800 mWindowAttributesChanged = true; 801 scheduleTraversals(); 802 } 803 } 804 805 void handleAppVisibility(boolean visible) { 806 if (mAppVisible != visible) { 807 mAppVisible = visible; 808 scheduleTraversals(); 809 } 810 } 811 812 void handleGetNewSurface() { 813 mNewSurfaceNeeded = true; 814 mFullRedrawNeeded = true; 815 scheduleTraversals(); 816 } 817 818 void handleScreenStateChange(boolean on) { 819 if (on != mAttachInfo.mScreenOn) { 820 mAttachInfo.mScreenOn = on; 821 if (mView != null) { 822 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 823 } 824 if (on) { 825 mFullRedrawNeeded = true; 826 scheduleTraversals(); 827 } 828 } 829 } 830 831 @Override 832 public void requestFitSystemWindows() { 833 checkThread(); 834 mFitSystemWindowsRequested = true; 835 scheduleTraversals(); 836 } 837 838 @Override 839 public void requestLayout() { 840 if (!mHandlingLayoutInLayoutRequest) { 841 checkThread(); 842 mLayoutRequested = true; 843 scheduleTraversals(); 844 } 845 } 846 847 @Override 848 public boolean isLayoutRequested() { 849 return mLayoutRequested; 850 } 851 852 void invalidate() { 853 mDirty.set(0, 0, mWidth, mHeight); 854 scheduleTraversals(); 855 } 856 857 void invalidateWorld(View view) { 858 view.invalidate(); 859 if (view instanceof ViewGroup) { 860 ViewGroup parent = (ViewGroup) view; 861 for (int i = 0; i < parent.getChildCount(); i++) { 862 invalidateWorld(parent.getChildAt(i)); 863 } 864 } 865 } 866 867 @Override 868 public void invalidateChild(View child, Rect dirty) { 869 invalidateChildInParent(null, dirty); 870 } 871 872 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 873 checkThread(); 874 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 875 876 if (dirty == null) { 877 invalidate(); 878 return null; 879 } else if (dirty.isEmpty() && !mIsAnimating) { 880 return null; 881 } 882 883 if (mCurScrollY != 0 || mTranslator != null) { 884 mTempRect.set(dirty); 885 dirty = mTempRect; 886 if (mCurScrollY != 0) { 887 dirty.offset(0, -mCurScrollY); 888 } 889 if (mTranslator != null) { 890 mTranslator.translateRectInAppWindowToScreen(dirty); 891 } 892 if (mAttachInfo.mScalingRequired) { 893 dirty.inset(-1, -1); 894 } 895 } 896 897 final Rect localDirty = mDirty; 898 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 899 mAttachInfo.mSetIgnoreDirtyState = true; 900 mAttachInfo.mIgnoreDirtyState = true; 901 } 902 903 // Add the new dirty rect to the current one 904 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 905 // Intersect with the bounds of the window to skip 906 // updates that lie outside of the visible region 907 final float appScale = mAttachInfo.mApplicationScale; 908 final boolean intersected = localDirty.intersect(0, 0, 909 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 910 if (!intersected) { 911 localDirty.setEmpty(); 912 } 913 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 914 scheduleTraversals(); 915 } 916 917 return null; 918 } 919 920 void setStopped(boolean stopped) { 921 if (mStopped != stopped) { 922 mStopped = stopped; 923 if (!stopped) { 924 scheduleTraversals(); 925 } 926 } 927 } 928 929 public ViewParent getParent() { 930 return null; 931 } 932 933 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 934 if (child != mView) { 935 throw new RuntimeException("child is not mine, honest!"); 936 } 937 // Note: don't apply scroll offset, because we want to know its 938 // visibility in the virtual canvas being given to the view hierarchy. 939 return r.intersect(0, 0, mWidth, mHeight); 940 } 941 942 public void bringChildToFront(View child) { 943 } 944 945 int getHostVisibility() { 946 return mAppVisible ? mView.getVisibility() : View.GONE; 947 } 948 949 void disposeResizeBuffer() { 950 if (mResizeBuffer != null) { 951 mResizeBuffer.destroy(); 952 mResizeBuffer = null; 953 } 954 } 955 956 /** 957 * Add LayoutTransition to the list of transitions to be started in the next traversal. 958 * This list will be cleared after the transitions on the list are start()'ed. These 959 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 960 * happens during the layout phase of traversal, which we want to complete before any of the 961 * animations are started (because those animations may side-effect properties that layout 962 * depends upon, like the bounding rectangles of the affected views). So we add the transition 963 * to the list and it is started just prior to starting the drawing phase of traversal. 964 * 965 * @param transition The LayoutTransition to be started on the next traversal. 966 * 967 * @hide 968 */ 969 public void requestTransitionStart(LayoutTransition transition) { 970 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 971 if (mPendingTransitions == null) { 972 mPendingTransitions = new ArrayList<LayoutTransition>(); 973 } 974 mPendingTransitions.add(transition); 975 } 976 } 977 978 void scheduleTraversals() { 979 if (!mTraversalScheduled) { 980 mTraversalScheduled = true; 981 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 982 mChoreographer.postCallback( 983 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 984 scheduleConsumeBatchedInput(); 985 } 986 } 987 988 void unscheduleTraversals() { 989 if (mTraversalScheduled) { 990 mTraversalScheduled = false; 991 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 992 mChoreographer.removeCallbacks( 993 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 994 } 995 } 996 997 void doTraversal() { 998 if (mTraversalScheduled) { 999 mTraversalScheduled = false; 1000 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1001 1002 if (mProfile) { 1003 Debug.startMethodTracing("ViewAncestor"); 1004 } 1005 1006 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1007 try { 1008 performTraversals(); 1009 } finally { 1010 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1011 } 1012 1013 if (mProfile) { 1014 Debug.stopMethodTracing(); 1015 mProfile = false; 1016 } 1017 } 1018 } 1019 1020 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1021 // Update window's global keep screen on flag: if a view has requested 1022 // that the screen be kept on, then it is always set; otherwise, it is 1023 // set to whatever the client last requested for the global state. 1024 if (mAttachInfo.mKeepScreenOn) { 1025 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1026 } else { 1027 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1028 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1029 } 1030 } 1031 1032 private boolean collectViewAttributes() { 1033 final View.AttachInfo attachInfo = mAttachInfo; 1034 if (attachInfo.mRecomputeGlobalAttributes) { 1035 //Log.i(TAG, "Computing view hierarchy attributes!"); 1036 attachInfo.mRecomputeGlobalAttributes = false; 1037 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1038 attachInfo.mKeepScreenOn = false; 1039 attachInfo.mSystemUiVisibility = 0; 1040 attachInfo.mHasSystemUiListeners = false; 1041 mView.dispatchCollectViewAttributes(attachInfo, 0); 1042 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1043 WindowManager.LayoutParams params = mWindowAttributes; 1044 if (attachInfo.mKeepScreenOn != oldScreenOn 1045 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1046 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1047 applyKeepScreenOnFlag(params); 1048 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1049 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1050 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1051 return true; 1052 } 1053 } 1054 return false; 1055 } 1056 1057 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1058 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1059 int childWidthMeasureSpec; 1060 int childHeightMeasureSpec; 1061 boolean windowSizeMayChange = false; 1062 1063 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1064 "Measuring " + host + " in display " + desiredWindowWidth 1065 + "x" + desiredWindowHeight + "..."); 1066 1067 boolean goodMeasure = false; 1068 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1069 // On large screens, we don't want to allow dialogs to just 1070 // stretch to fill the entire width of the screen to display 1071 // one line of text. First try doing the layout at a smaller 1072 // size to see if it will fit. 1073 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1074 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1075 int baseSize = 0; 1076 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1077 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1078 } 1079 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1080 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1081 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1082 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1083 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1084 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1085 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1086 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1087 goodMeasure = true; 1088 } else { 1089 // Didn't fit in that size... try expanding a bit. 1090 baseSize = (baseSize+desiredWindowWidth)/2; 1091 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1092 + baseSize); 1093 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1094 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1095 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1096 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1097 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1098 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1099 goodMeasure = true; 1100 } 1101 } 1102 } 1103 } 1104 1105 if (!goodMeasure) { 1106 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1107 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1108 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1109 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1110 windowSizeMayChange = true; 1111 } 1112 } 1113 1114 if (DBG) { 1115 System.out.println("======================================"); 1116 System.out.println("performTraversals -- after measure"); 1117 host.debug(); 1118 } 1119 1120 return windowSizeMayChange; 1121 } 1122 1123 private void performTraversals() { 1124 // cache mView since it is used so much below... 1125 final View host = mView; 1126 1127 if (DBG) { 1128 System.out.println("======================================"); 1129 System.out.println("performTraversals"); 1130 host.debug(); 1131 } 1132 1133 if (host == null || !mAdded) 1134 return; 1135 1136 mIsInTraversal = true; 1137 mWillDrawSoon = true; 1138 boolean windowSizeMayChange = false; 1139 boolean newSurface = false; 1140 boolean surfaceChanged = false; 1141 WindowManager.LayoutParams lp = mWindowAttributes; 1142 1143 int desiredWindowWidth; 1144 int desiredWindowHeight; 1145 1146 final View.AttachInfo attachInfo = mAttachInfo; 1147 1148 final int viewVisibility = getHostVisibility(); 1149 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1150 || mNewSurfaceNeeded; 1151 1152 WindowManager.LayoutParams params = null; 1153 if (mWindowAttributesChanged) { 1154 mWindowAttributesChanged = false; 1155 surfaceChanged = true; 1156 params = lp; 1157 } 1158 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1159 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1160 params = lp; 1161 mFullRedrawNeeded = true; 1162 mLayoutRequested = true; 1163 if (mLastInCompatMode) { 1164 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1165 mLastInCompatMode = false; 1166 } else { 1167 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1168 mLastInCompatMode = true; 1169 } 1170 } 1171 1172 mWindowAttributesChangesFlag = 0; 1173 1174 Rect frame = mWinFrame; 1175 if (mFirst) { 1176 mFullRedrawNeeded = true; 1177 mLayoutRequested = true; 1178 1179 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1180 // NOTE -- system code, won't try to do compat mode. 1181 Point size = new Point(); 1182 mDisplay.getRealSize(size); 1183 desiredWindowWidth = size.x; 1184 desiredWindowHeight = size.y; 1185 } else { 1186 DisplayMetrics packageMetrics = 1187 mView.getContext().getResources().getDisplayMetrics(); 1188 desiredWindowWidth = packageMetrics.widthPixels; 1189 desiredWindowHeight = packageMetrics.heightPixels; 1190 } 1191 1192 // For the very first time, tell the view hierarchy that it 1193 // is attached to the window. Note that at this point the surface 1194 // object is not initialized to its backing store, but soon it 1195 // will be (assuming the window is visible). 1196 attachInfo.mSurface = mSurface; 1197 // We used to use the following condition to choose 32 bits drawing caches: 1198 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1199 // However, windows are now always 32 bits by default, so choose 32 bits 1200 attachInfo.mUse32BitDrawingCache = true; 1201 attachInfo.mHasWindowFocus = false; 1202 attachInfo.mWindowVisibility = viewVisibility; 1203 attachInfo.mRecomputeGlobalAttributes = false; 1204 viewVisibilityChanged = false; 1205 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1206 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1207 // Set the layout direction if it has not been set before (inherit is the default) 1208 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1209 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1210 } 1211 host.dispatchAttachedToWindow(attachInfo, 0); 1212 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1213 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1214 host.fitSystemWindows(mFitSystemWindowsInsets); 1215 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1216 1217 } else { 1218 desiredWindowWidth = frame.width(); 1219 desiredWindowHeight = frame.height(); 1220 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1221 if (DEBUG_ORIENTATION) Log.v(TAG, 1222 "View " + host + " resized to: " + frame); 1223 mFullRedrawNeeded = true; 1224 mLayoutRequested = true; 1225 windowSizeMayChange = true; 1226 } 1227 } 1228 1229 if (viewVisibilityChanged) { 1230 attachInfo.mWindowVisibility = viewVisibility; 1231 host.dispatchWindowVisibilityChanged(viewVisibility); 1232 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1233 destroyHardwareResources(); 1234 } 1235 if (viewVisibility == View.GONE) { 1236 // After making a window gone, we will count it as being 1237 // shown for the first time the next time it gets focus. 1238 mHasHadWindowFocus = false; 1239 } 1240 } 1241 1242 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1243 getRunQueue().executeActions(attachInfo.mHandler); 1244 1245 boolean insetsChanged = false; 1246 1247 boolean layoutRequested = mLayoutRequested && !mStopped; 1248 if (layoutRequested) { 1249 1250 final Resources res = mView.getContext().getResources(); 1251 1252 if (mFirst) { 1253 // make sure touch mode code executes by setting cached value 1254 // to opposite of the added touch mode. 1255 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1256 ensureTouchModeLocally(mAddedTouchMode); 1257 } else { 1258 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1259 insetsChanged = true; 1260 } 1261 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1262 insetsChanged = true; 1263 } 1264 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1265 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1266 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1267 + mAttachInfo.mVisibleInsets); 1268 } 1269 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1270 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1271 windowSizeMayChange = true; 1272 1273 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1274 // NOTE -- system code, won't try to do compat mode. 1275 Point size = new Point(); 1276 mDisplay.getRealSize(size); 1277 desiredWindowWidth = size.x; 1278 desiredWindowHeight = size.y; 1279 } else { 1280 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1281 desiredWindowWidth = packageMetrics.widthPixels; 1282 desiredWindowHeight = packageMetrics.heightPixels; 1283 } 1284 } 1285 } 1286 1287 // Ask host how big it wants to be 1288 windowSizeMayChange |= measureHierarchy(host, lp, res, 1289 desiredWindowWidth, desiredWindowHeight); 1290 } 1291 1292 if (collectViewAttributes()) { 1293 params = lp; 1294 } 1295 if (attachInfo.mForceReportNewAttributes) { 1296 attachInfo.mForceReportNewAttributes = false; 1297 params = lp; 1298 } 1299 1300 if (mFirst || attachInfo.mViewVisibilityChanged) { 1301 attachInfo.mViewVisibilityChanged = false; 1302 int resizeMode = mSoftInputMode & 1303 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1304 // If we are in auto resize mode, then we need to determine 1305 // what mode to use now. 1306 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1307 final int N = attachInfo.mScrollContainers.size(); 1308 for (int i=0; i<N; i++) { 1309 if (attachInfo.mScrollContainers.get(i).isShown()) { 1310 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1311 } 1312 } 1313 if (resizeMode == 0) { 1314 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1315 } 1316 if ((lp.softInputMode & 1317 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1318 lp.softInputMode = (lp.softInputMode & 1319 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1320 resizeMode; 1321 params = lp; 1322 } 1323 } 1324 } 1325 1326 if (params != null) { 1327 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1328 if (!PixelFormat.formatHasAlpha(params.format)) { 1329 params.format = PixelFormat.TRANSLUCENT; 1330 } 1331 } 1332 mAttachInfo.mOverscanRequested = (params.flags 1333 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1334 } 1335 1336 if (mFitSystemWindowsRequested) { 1337 mFitSystemWindowsRequested = false; 1338 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1339 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1340 host.fitSystemWindows(mFitSystemWindowsInsets); 1341 if (mLayoutRequested) { 1342 // Short-circuit catching a new layout request here, so 1343 // we don't need to go through two layout passes when things 1344 // change due to fitting system windows, which can happen a lot. 1345 windowSizeMayChange |= measureHierarchy(host, lp, 1346 mView.getContext().getResources(), 1347 desiredWindowWidth, desiredWindowHeight); 1348 } 1349 } 1350 1351 if (layoutRequested) { 1352 // Clear this now, so that if anything requests a layout in the 1353 // rest of this function we will catch it and re-run a full 1354 // layout pass. 1355 mLayoutRequested = false; 1356 } 1357 1358 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1359 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1360 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1361 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1362 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1363 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1364 1365 final boolean computesInternalInsets = 1366 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1367 1368 boolean insetsPending = false; 1369 int relayoutResult = 0; 1370 1371 if (mFirst || windowShouldResize || insetsChanged || 1372 viewVisibilityChanged || params != null) { 1373 1374 if (viewVisibility == View.VISIBLE) { 1375 // If this window is giving internal insets to the window 1376 // manager, and it is being added or changing its visibility, 1377 // then we want to first give the window manager "fake" 1378 // insets to cause it to effectively ignore the content of 1379 // the window during layout. This avoids it briefly causing 1380 // other windows to resize/move based on the raw frame of the 1381 // window, waiting until we can finish laying out this window 1382 // and get back to the window manager with the ultimately 1383 // computed insets. 1384 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1385 } 1386 1387 if (mSurfaceHolder != null) { 1388 mSurfaceHolder.mSurfaceLock.lock(); 1389 mDrawingAllowed = true; 1390 } 1391 1392 boolean hwInitialized = false; 1393 boolean contentInsetsChanged = false; 1394 boolean hadSurface = mSurface.isValid(); 1395 1396 try { 1397 if (DEBUG_LAYOUT) { 1398 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1399 host.getMeasuredHeight() + ", params=" + params); 1400 } 1401 1402 final int surfaceGenerationId = mSurface.getGenerationId(); 1403 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1404 mWindowsAnimating |= 1405 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0; 1406 1407 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1408 + " overscan=" + mPendingOverscanInsets.toShortString() 1409 + " content=" + mPendingContentInsets.toShortString() 1410 + " visible=" + mPendingVisibleInsets.toShortString() 1411 + " surface=" + mSurface); 1412 1413 if (mPendingConfiguration.seq != 0) { 1414 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1415 + mPendingConfiguration); 1416 updateConfiguration(mPendingConfiguration, !mFirst); 1417 mPendingConfiguration.seq = 0; 1418 } 1419 1420 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1421 mAttachInfo.mOverscanInsets); 1422 contentInsetsChanged = !mPendingContentInsets.equals( 1423 mAttachInfo.mContentInsets); 1424 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1425 mAttachInfo.mVisibleInsets); 1426 if (contentInsetsChanged) { 1427 if (mWidth > 0 && mHeight > 0 && lp != null && 1428 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1429 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1430 mSurface != null && mSurface.isValid() && 1431 !mAttachInfo.mTurnOffWindowResizeAnim && 1432 mAttachInfo.mHardwareRenderer != null && 1433 mAttachInfo.mHardwareRenderer.isEnabled() && 1434 mAttachInfo.mHardwareRenderer.validate() && 1435 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1436 1437 disposeResizeBuffer(); 1438 1439 boolean completed = false; 1440 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1441 HardwareCanvas layerCanvas = null; 1442 try { 1443 if (mResizeBuffer == null) { 1444 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1445 mWidth, mHeight, false); 1446 } else if (mResizeBuffer.getWidth() != mWidth || 1447 mResizeBuffer.getHeight() != mHeight) { 1448 mResizeBuffer.resize(mWidth, mHeight); 1449 } 1450 // TODO: should handle create/resize failure 1451 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1452 final int restoreCount = layerCanvas.save(); 1453 1454 int yoff; 1455 final boolean scrolling = mScroller != null 1456 && mScroller.computeScrollOffset(); 1457 if (scrolling) { 1458 yoff = mScroller.getCurrY(); 1459 mScroller.abortAnimation(); 1460 } else { 1461 yoff = mScrollY; 1462 } 1463 1464 layerCanvas.translate(0, -yoff); 1465 if (mTranslator != null) { 1466 mTranslator.translateCanvas(layerCanvas); 1467 } 1468 1469 DisplayList displayList = mView.mDisplayList; 1470 if (displayList != null) { 1471 layerCanvas.drawDisplayList(displayList, null, 1472 DisplayList.FLAG_CLIP_CHILDREN); 1473 } else { 1474 mView.draw(layerCanvas); 1475 } 1476 1477 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1478 1479 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1480 mResizeBufferDuration = mView.getResources().getInteger( 1481 com.android.internal.R.integer.config_mediumAnimTime); 1482 completed = true; 1483 1484 layerCanvas.restoreToCount(restoreCount); 1485 } catch (OutOfMemoryError e) { 1486 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1487 } finally { 1488 if (mResizeBuffer != null) { 1489 mResizeBuffer.end(hwRendererCanvas); 1490 if (!completed) { 1491 mResizeBuffer.destroy(); 1492 mResizeBuffer = null; 1493 } 1494 } 1495 } 1496 } 1497 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1498 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1499 + mAttachInfo.mContentInsets); 1500 } 1501 if (overscanInsetsChanged) { 1502 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1503 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1504 + mAttachInfo.mOverscanInsets); 1505 // Need to relayout with content insets. 1506 contentInsetsChanged = true; 1507 } 1508 if (contentInsetsChanged || mLastSystemUiVisibility != 1509 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1510 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1511 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1512 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1513 mFitSystemWindowsRequested = false; 1514 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1515 host.fitSystemWindows(mFitSystemWindowsInsets); 1516 } 1517 if (visibleInsetsChanged) { 1518 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1519 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1520 + mAttachInfo.mVisibleInsets); 1521 } 1522 1523 if (!hadSurface) { 1524 if (mSurface.isValid()) { 1525 // If we are creating a new surface, then we need to 1526 // completely redraw it. Also, when we get to the 1527 // point of drawing it we will hold off and schedule 1528 // a new traversal instead. This is so we can tell the 1529 // window manager about all of the windows being displayed 1530 // before actually drawing them, so it can display then 1531 // all at once. 1532 newSurface = true; 1533 mFullRedrawNeeded = true; 1534 mPreviousTransparentRegion.setEmpty(); 1535 1536 if (mAttachInfo.mHardwareRenderer != null) { 1537 try { 1538 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1539 mHolder.getSurface()); 1540 } catch (Surface.OutOfResourcesException e) { 1541 handleOutOfResourcesException(e); 1542 return; 1543 } 1544 } 1545 } 1546 } else if (!mSurface.isValid()) { 1547 // If the surface has been removed, then reset the scroll 1548 // positions. 1549 if (mLastScrolledFocus != null) { 1550 mLastScrolledFocus.clear(); 1551 } 1552 mScrollY = mCurScrollY = 0; 1553 if (mScroller != null) { 1554 mScroller.abortAnimation(); 1555 } 1556 disposeResizeBuffer(); 1557 // Our surface is gone 1558 if (mAttachInfo.mHardwareRenderer != null && 1559 mAttachInfo.mHardwareRenderer.isEnabled()) { 1560 mAttachInfo.mHardwareRenderer.destroy(true); 1561 } 1562 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1563 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1564 mFullRedrawNeeded = true; 1565 try { 1566 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1567 } catch (Surface.OutOfResourcesException e) { 1568 handleOutOfResourcesException(e); 1569 return; 1570 } 1571 } 1572 } catch (RemoteException e) { 1573 } 1574 1575 if (DEBUG_ORIENTATION) Log.v( 1576 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1577 1578 attachInfo.mWindowLeft = frame.left; 1579 attachInfo.mWindowTop = frame.top; 1580 1581 // !!FIXME!! This next section handles the case where we did not get the 1582 // window size we asked for. We should avoid this by getting a maximum size from 1583 // the window session beforehand. 1584 if (mWidth != frame.width() || mHeight != frame.height()) { 1585 mWidth = frame.width(); 1586 mHeight = frame.height(); 1587 } 1588 1589 if (mSurfaceHolder != null) { 1590 // The app owns the surface; tell it about what is going on. 1591 if (mSurface.isValid()) { 1592 // XXX .copyFrom() doesn't work! 1593 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1594 mSurfaceHolder.mSurface = mSurface; 1595 } 1596 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1597 mSurfaceHolder.mSurfaceLock.unlock(); 1598 if (mSurface.isValid()) { 1599 if (!hadSurface) { 1600 mSurfaceHolder.ungetCallbacks(); 1601 1602 mIsCreating = true; 1603 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1604 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1605 if (callbacks != null) { 1606 for (SurfaceHolder.Callback c : callbacks) { 1607 c.surfaceCreated(mSurfaceHolder); 1608 } 1609 } 1610 surfaceChanged = true; 1611 } 1612 if (surfaceChanged) { 1613 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1614 lp.format, mWidth, mHeight); 1615 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1616 if (callbacks != null) { 1617 for (SurfaceHolder.Callback c : callbacks) { 1618 c.surfaceChanged(mSurfaceHolder, lp.format, 1619 mWidth, mHeight); 1620 } 1621 } 1622 } 1623 mIsCreating = false; 1624 } else if (hadSurface) { 1625 mSurfaceHolder.ungetCallbacks(); 1626 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1627 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1628 if (callbacks != null) { 1629 for (SurfaceHolder.Callback c : callbacks) { 1630 c.surfaceDestroyed(mSurfaceHolder); 1631 } 1632 } 1633 mSurfaceHolder.mSurfaceLock.lock(); 1634 try { 1635 mSurfaceHolder.mSurface = new Surface(); 1636 } finally { 1637 mSurfaceHolder.mSurfaceLock.unlock(); 1638 } 1639 } 1640 } 1641 1642 if (mAttachInfo.mHardwareRenderer != null && 1643 mAttachInfo.mHardwareRenderer.isEnabled()) { 1644 if (hwInitialized || windowShouldResize || 1645 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1646 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1647 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1648 if (!hwInitialized) { 1649 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1650 mFullRedrawNeeded = true; 1651 } 1652 } 1653 } 1654 1655 if (!mStopped) { 1656 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1657 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1658 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1659 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1660 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1661 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1662 1663 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1664 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1665 + " mHeight=" + mHeight 1666 + " measuredHeight=" + host.getMeasuredHeight() 1667 + " coveredInsetsChanged=" + contentInsetsChanged); 1668 1669 // Ask host how big it wants to be 1670 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1671 1672 // Implementation of weights from WindowManager.LayoutParams 1673 // We just grow the dimensions as needed and re-measure if 1674 // needs be 1675 int width = host.getMeasuredWidth(); 1676 int height = host.getMeasuredHeight(); 1677 boolean measureAgain = false; 1678 1679 if (lp.horizontalWeight > 0.0f) { 1680 width += (int) ((mWidth - width) * lp.horizontalWeight); 1681 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1682 MeasureSpec.EXACTLY); 1683 measureAgain = true; 1684 } 1685 if (lp.verticalWeight > 0.0f) { 1686 height += (int) ((mHeight - height) * lp.verticalWeight); 1687 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1688 MeasureSpec.EXACTLY); 1689 measureAgain = true; 1690 } 1691 1692 if (measureAgain) { 1693 if (DEBUG_LAYOUT) Log.v(TAG, 1694 "And hey let's measure once more: width=" + width 1695 + " height=" + height); 1696 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1697 } 1698 1699 layoutRequested = true; 1700 } 1701 } 1702 } else { 1703 // Not the first pass and no window/insets/visibility change but the window 1704 // may have moved and we need check that and if so to update the left and right 1705 // in the attach info. We translate only the window frame since on window move 1706 // the window manager tells us only for the new frame but the insets are the 1707 // same and we do not want to translate them more than once. 1708 1709 // TODO: Well, we are checking whether the frame has changed similarly 1710 // to how this is done for the insets. This is however incorrect since 1711 // the insets and the frame are translated. For example, the old frame 1712 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1713 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1714 // true since we are comparing a not translated value to a translated one. 1715 // This scenario is rare but we may want to fix that. 1716 1717 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1718 || attachInfo.mWindowTop != frame.top); 1719 if (windowMoved) { 1720 if (mTranslator != null) { 1721 mTranslator.translateRectInScreenToAppWinFrame(frame); 1722 } 1723 attachInfo.mWindowLeft = frame.left; 1724 attachInfo.mWindowTop = frame.top; 1725 } 1726 } 1727 1728 final boolean didLayout = layoutRequested && !mStopped; 1729 boolean triggerGlobalLayoutListener = didLayout 1730 || attachInfo.mRecomputeGlobalAttributes; 1731 if (didLayout) { 1732 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1733 1734 // By this point all views have been sized and positionned 1735 // We can compute the transparent area 1736 1737 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1738 // start out transparent 1739 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1740 host.getLocationInWindow(mTmpLocation); 1741 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1742 mTmpLocation[0] + host.mRight - host.mLeft, 1743 mTmpLocation[1] + host.mBottom - host.mTop); 1744 1745 host.gatherTransparentRegion(mTransparentRegion); 1746 if (mTranslator != null) { 1747 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1748 } 1749 1750 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1751 mPreviousTransparentRegion.set(mTransparentRegion); 1752 // reconfigure window manager 1753 try { 1754 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1755 } catch (RemoteException e) { 1756 } 1757 } 1758 } 1759 1760 if (DBG) { 1761 System.out.println("======================================"); 1762 System.out.println("performTraversals -- after setFrame"); 1763 host.debug(); 1764 } 1765 } 1766 1767 if (triggerGlobalLayoutListener) { 1768 attachInfo.mRecomputeGlobalAttributes = false; 1769 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1770 1771 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1772 postSendWindowContentChangedCallback(mView); 1773 } 1774 } 1775 1776 if (computesInternalInsets) { 1777 // Clear the original insets. 1778 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1779 insets.reset(); 1780 1781 // Compute new insets in place. 1782 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1783 1784 // Tell the window manager. 1785 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1786 mLastGivenInsets.set(insets); 1787 1788 // Translate insets to screen coordinates if needed. 1789 final Rect contentInsets; 1790 final Rect visibleInsets; 1791 final Region touchableRegion; 1792 if (mTranslator != null) { 1793 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1794 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1795 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1796 } else { 1797 contentInsets = insets.contentInsets; 1798 visibleInsets = insets.visibleInsets; 1799 touchableRegion = insets.touchableRegion; 1800 } 1801 1802 try { 1803 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1804 contentInsets, visibleInsets, touchableRegion); 1805 } catch (RemoteException e) { 1806 } 1807 } 1808 } 1809 1810 boolean skipDraw = false; 1811 1812 if (mFirst) { 1813 // handle first focus request 1814 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1815 + mView.hasFocus()); 1816 if (mView != null) { 1817 if (!mView.hasFocus()) { 1818 mView.requestFocus(View.FOCUS_FORWARD); 1819 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1820 + mView.findFocus()); 1821 } else { 1822 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1823 + mView.findFocus()); 1824 } 1825 } 1826 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1827 // The first time we relayout the window, if the system is 1828 // doing window animations, we want to hold of on any future 1829 // draws until the animation is done. 1830 mWindowsAnimating = true; 1831 } 1832 } else if (mWindowsAnimating) { 1833 skipDraw = true; 1834 } 1835 1836 mFirst = false; 1837 mWillDrawSoon = false; 1838 mNewSurfaceNeeded = false; 1839 mViewVisibility = viewVisibility; 1840 1841 if (mAttachInfo.mHasWindowFocus) { 1842 final boolean imTarget = WindowManager.LayoutParams 1843 .mayUseInputMethod(mWindowAttributes.flags); 1844 if (imTarget != mLastWasImTarget) { 1845 mLastWasImTarget = imTarget; 1846 InputMethodManager imm = InputMethodManager.peekInstance(); 1847 if (imm != null && imTarget) { 1848 imm.startGettingWindowFocus(mView); 1849 imm.onWindowFocus(mView, mView.findFocus(), 1850 mWindowAttributes.softInputMode, 1851 !mHasHadWindowFocus, mWindowAttributes.flags); 1852 } 1853 } 1854 } 1855 1856 // Remember if we must report the next draw. 1857 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1858 mReportNextDraw = true; 1859 } 1860 1861 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1862 viewVisibility != View.VISIBLE; 1863 1864 if (!cancelDraw && !newSurface) { 1865 if (!skipDraw || mReportNextDraw) { 1866 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1867 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1868 mPendingTransitions.get(i).startChangingAnimations(); 1869 } 1870 mPendingTransitions.clear(); 1871 } 1872 1873 performDraw(); 1874 } 1875 } else { 1876 if (viewVisibility == View.VISIBLE) { 1877 // Try again 1878 scheduleTraversals(); 1879 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1880 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1881 mPendingTransitions.get(i).endChangingAnimations(); 1882 } 1883 mPendingTransitions.clear(); 1884 } 1885 } 1886 1887 mIsInTraversal = false; 1888 } 1889 1890 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1891 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1892 try { 1893 if (!mWindowSession.outOfMemory(mWindow) && 1894 Process.myUid() != Process.SYSTEM_UID) { 1895 Slog.w(TAG, "No processes killed for memory; killing self"); 1896 Process.killProcess(Process.myPid()); 1897 } 1898 } catch (RemoteException ex) { 1899 } 1900 mLayoutRequested = true; // ask wm for a new surface next time. 1901 } 1902 1903 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1904 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1905 try { 1906 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1907 } finally { 1908 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1909 } 1910 } 1911 1912 /** 1913 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1914 * is currently undergoing a layout pass. 1915 * 1916 * @return whether the view hierarchy is currently undergoing a layout pass 1917 */ 1918 boolean isInLayout() { 1919 return mInLayout; 1920 } 1921 1922 /** 1923 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1924 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1925 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1926 * all children in that container hierarchy are measured and laid out at the end of the layout 1927 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1928 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1929 * we check all of those views to see if any still have pending layout requests, which 1930 * indicates that they were not correctly handled by their container hierarchy. If that is 1931 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1932 * to blank containers, and force a second request/measure/layout pass in this frame. If 1933 * more requestLayout() calls are received during that second layout pass, we post those 1934 * requests to the next frame to avoid possible infinite loops. 1935 * 1936 * <p>The return value from this method indicates whether the request should proceed 1937 * (if it is a request during the first layout pass) or should be skipped and posted to the 1938 * next frame (if it is a request during the second layout pass).</p> 1939 * 1940 * @param view the view that requested the layout. 1941 * 1942 * @return true if request should proceed, false otherwise. 1943 */ 1944 boolean requestLayoutDuringLayout(final View view) { 1945 if (view.mParent == null || view.mAttachInfo == null) { 1946 // Would not normally trigger another layout, so just let it pass through as usual 1947 return true; 1948 } 1949 if (!mLayoutRequesters.contains(view)) { 1950 mLayoutRequesters.add(view); 1951 } 1952 if (!mHandlingLayoutInLayoutRequest) { 1953 // Let the request proceed normally; it will be processed in a second layout pass 1954 // if necessary 1955 return true; 1956 } else { 1957 // Don't let the request proceed during the second layout pass. 1958 // It will post to the next frame instead. 1959 return false; 1960 } 1961 } 1962 1963 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1964 int desiredWindowHeight) { 1965 mLayoutRequested = false; 1966 mScrollMayChange = true; 1967 mInLayout = true; 1968 1969 final View host = mView; 1970 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1971 Log.v(TAG, "Laying out " + host + " to (" + 1972 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1973 } 1974 1975 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1976 try { 1977 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1978 1979 mInLayout = false; 1980 int numViewsRequestingLayout = mLayoutRequesters.size(); 1981 if (numViewsRequestingLayout > 0) { 1982 // requestLayout() was called during layout. 1983 // If no layout-request flags are set on the requesting views, there is no problem. 1984 // If some requests are still pending, then we need to clear those flags and do 1985 // a full request/measure/layout pass to handle this situation. 1986 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 1987 false); 1988 if (validLayoutRequesters != null) { 1989 // Set this flag to indicate that any further requests are happening during 1990 // the second pass, which may result in posting those requests to the next 1991 // frame instead 1992 mHandlingLayoutInLayoutRequest = true; 1993 1994 // Process fresh layout requests, then measure and layout 1995 int numValidRequests = validLayoutRequesters.size(); 1996 for (int i = 0; i < numValidRequests; ++i) { 1997 final View view = validLayoutRequesters.get(i); 1998 Log.w("View", "requestLayout() improperly called by " + view + 1999 " during layout: running second layout pass"); 2000 view.requestLayout(); 2001 } 2002 measureHierarchy(host, lp, mView.getContext().getResources(), 2003 desiredWindowWidth, desiredWindowHeight); 2004 mInLayout = true; 2005 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2006 2007 mHandlingLayoutInLayoutRequest = false; 2008 2009 // Check the valid requests again, this time without checking/clearing the 2010 // layout flags, since requests happening during the second pass get noop'd 2011 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2012 if (validLayoutRequesters != null) { 2013 final ArrayList<View> finalRequesters = validLayoutRequesters; 2014 // Post second-pass requests to the next frame 2015 getRunQueue().post(new Runnable() { 2016 @Override 2017 public void run() { 2018 int numValidRequests = finalRequesters.size(); 2019 for (int i = 0; i < numValidRequests; ++i) { 2020 final View view = finalRequesters.get(i); 2021 Log.w("View", "requestLayout() improperly called by " + view + 2022 " during second layout pass: posting in next frame"); 2023 view.requestLayout(); 2024 } 2025 } 2026 }); 2027 } 2028 } 2029 2030 } 2031 } finally { 2032 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2033 } 2034 mInLayout = false; 2035 } 2036 2037 /** 2038 * This method is called during layout when there have been calls to requestLayout() during 2039 * layout. It walks through the list of views that requested layout to determine which ones 2040 * still need it, based on visibility in the hierarchy and whether they have already been 2041 * handled (as is usually the case with ListView children). 2042 * 2043 * @param layoutRequesters The list of views that requested layout during layout 2044 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2045 * If so, the FORCE_LAYOUT flag was not set on requesters. 2046 * @return A list of the actual views that still need to be laid out. 2047 */ 2048 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2049 boolean secondLayoutRequests) { 2050 2051 int numViewsRequestingLayout = layoutRequesters.size(); 2052 ArrayList<View> validLayoutRequesters = null; 2053 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2054 View view = layoutRequesters.get(i); 2055 if (view != null && view.mAttachInfo != null && view.mParent != null && 2056 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2057 View.PFLAG_FORCE_LAYOUT)) { 2058 boolean gone = false; 2059 View parent = view; 2060 // Only trigger new requests for views in a non-GONE hierarchy 2061 while (parent != null) { 2062 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2063 gone = true; 2064 break; 2065 } 2066 if (parent.mParent instanceof View) { 2067 parent = (View) parent.mParent; 2068 } else { 2069 parent = null; 2070 } 2071 } 2072 if (!gone) { 2073 if (validLayoutRequesters == null) { 2074 validLayoutRequesters = new ArrayList<View>(); 2075 } 2076 validLayoutRequesters.add(view); 2077 } 2078 } 2079 } 2080 if (!secondLayoutRequests) { 2081 // If we're checking the layout flags, then we need to clean them up also 2082 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2083 View view = layoutRequesters.get(i); 2084 while (view != null && 2085 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2086 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2087 if (view.mParent instanceof View) { 2088 view = (View) view.mParent; 2089 } else { 2090 view = null; 2091 } 2092 } 2093 } 2094 } 2095 layoutRequesters.clear(); 2096 return validLayoutRequesters; 2097 } 2098 2099 public void requestTransparentRegion(View child) { 2100 // the test below should not fail unless someone is messing with us 2101 checkThread(); 2102 if (mView == child) { 2103 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2104 // Need to make sure we re-evaluate the window attributes next 2105 // time around, to ensure the window has the correct format. 2106 mWindowAttributesChanged = true; 2107 mWindowAttributesChangesFlag = 0; 2108 requestLayout(); 2109 } 2110 } 2111 2112 /** 2113 * Figures out the measure spec for the root view in a window based on it's 2114 * layout params. 2115 * 2116 * @param windowSize 2117 * The available width or height of the window 2118 * 2119 * @param rootDimension 2120 * The layout params for one dimension (width or height) of the 2121 * window. 2122 * 2123 * @return The measure spec to use to measure the root view. 2124 */ 2125 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2126 int measureSpec; 2127 switch (rootDimension) { 2128 2129 case ViewGroup.LayoutParams.MATCH_PARENT: 2130 // Window can't resize. Force root view to be windowSize. 2131 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2132 break; 2133 case ViewGroup.LayoutParams.WRAP_CONTENT: 2134 // Window can resize. Set max size for root view. 2135 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2136 break; 2137 default: 2138 // Window wants to be an exact size. Force root view to be that size. 2139 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2140 break; 2141 } 2142 return measureSpec; 2143 } 2144 2145 int mHardwareYOffset; 2146 int mResizeAlpha; 2147 final Paint mResizePaint = new Paint(); 2148 2149 public void onHardwarePreDraw(HardwareCanvas canvas) { 2150 canvas.translate(0, -mHardwareYOffset); 2151 } 2152 2153 public void onHardwarePostDraw(HardwareCanvas canvas) { 2154 if (mResizeBuffer != null) { 2155 mResizePaint.setAlpha(mResizeAlpha); 2156 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2157 } 2158 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2159 } 2160 2161 /** 2162 * @hide 2163 */ 2164 void outputDisplayList(View view) { 2165 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2166 DisplayList displayList = view.getDisplayList(); 2167 if (displayList != null) { 2168 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2169 } 2170 } 2171 } 2172 2173 /** 2174 * @see #PROPERTY_PROFILE_RENDERING 2175 */ 2176 private void profileRendering(boolean enabled) { 2177 if (mProfileRendering) { 2178 mRenderProfilingEnabled = enabled; 2179 2180 if (mRenderProfiler != null) { 2181 mChoreographer.removeFrameCallback(mRenderProfiler); 2182 } 2183 if (mRenderProfilingEnabled) { 2184 if (mRenderProfiler == null) { 2185 mRenderProfiler = new Choreographer.FrameCallback() { 2186 @Override 2187 public void doFrame(long frameTimeNanos) { 2188 mDirty.set(0, 0, mWidth, mHeight); 2189 scheduleTraversals(); 2190 if (mRenderProfilingEnabled) { 2191 mChoreographer.postFrameCallback(mRenderProfiler); 2192 } 2193 } 2194 }; 2195 } 2196 mChoreographer.postFrameCallback(mRenderProfiler); 2197 } else { 2198 mRenderProfiler = null; 2199 } 2200 } 2201 } 2202 2203 /** 2204 * Called from draw() when DEBUG_FPS is enabled 2205 */ 2206 private void trackFPS() { 2207 // Tracks frames per second drawn. First value in a series of draws may be bogus 2208 // because it down not account for the intervening idle time 2209 long nowTime = System.currentTimeMillis(); 2210 if (mFpsStartTime < 0) { 2211 mFpsStartTime = mFpsPrevTime = nowTime; 2212 mFpsNumFrames = 0; 2213 } else { 2214 ++mFpsNumFrames; 2215 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2216 long frameTime = nowTime - mFpsPrevTime; 2217 long totalTime = nowTime - mFpsStartTime; 2218 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2219 mFpsPrevTime = nowTime; 2220 if (totalTime > 1000) { 2221 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2222 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2223 mFpsStartTime = nowTime; 2224 mFpsNumFrames = 0; 2225 } 2226 } 2227 } 2228 2229 private void performDraw() { 2230 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2231 return; 2232 } 2233 2234 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2235 mFullRedrawNeeded = false; 2236 2237 mIsDrawing = true; 2238 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2239 try { 2240 draw(fullRedrawNeeded); 2241 } finally { 2242 mIsDrawing = false; 2243 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2244 } 2245 2246 if (mReportNextDraw) { 2247 mReportNextDraw = false; 2248 2249 if (LOCAL_LOGV) { 2250 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2251 } 2252 if (mSurfaceHolder != null && mSurface.isValid()) { 2253 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2254 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2255 if (callbacks != null) { 2256 for (SurfaceHolder.Callback c : callbacks) { 2257 if (c instanceof SurfaceHolder.Callback2) { 2258 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2259 mSurfaceHolder); 2260 } 2261 } 2262 } 2263 } 2264 try { 2265 mWindowSession.finishDrawing(mWindow); 2266 } catch (RemoteException e) { 2267 } 2268 } 2269 } 2270 2271 private void draw(boolean fullRedrawNeeded) { 2272 Surface surface = mSurface; 2273 if (!surface.isValid()) { 2274 return; 2275 } 2276 2277 if (DEBUG_FPS) { 2278 trackFPS(); 2279 } 2280 2281 if (!sFirstDrawComplete) { 2282 synchronized (sFirstDrawHandlers) { 2283 sFirstDrawComplete = true; 2284 final int count = sFirstDrawHandlers.size(); 2285 for (int i = 0; i< count; i++) { 2286 mHandler.post(sFirstDrawHandlers.get(i)); 2287 } 2288 } 2289 } 2290 2291 scrollToRectOrFocus(null, false); 2292 2293 final AttachInfo attachInfo = mAttachInfo; 2294 if (attachInfo.mViewScrollChanged) { 2295 attachInfo.mViewScrollChanged = false; 2296 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2297 } 2298 2299 int yoff; 2300 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2301 if (animating) { 2302 yoff = mScroller.getCurrY(); 2303 } else { 2304 yoff = mScrollY; 2305 } 2306 if (mCurScrollY != yoff) { 2307 mCurScrollY = yoff; 2308 fullRedrawNeeded = true; 2309 } 2310 2311 final float appScale = attachInfo.mApplicationScale; 2312 final boolean scalingRequired = attachInfo.mScalingRequired; 2313 2314 int resizeAlpha = 0; 2315 if (mResizeBuffer != null) { 2316 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2317 if (deltaTime < mResizeBufferDuration) { 2318 float amt = deltaTime/(float) mResizeBufferDuration; 2319 amt = mResizeInterpolator.getInterpolation(amt); 2320 animating = true; 2321 resizeAlpha = 255 - (int)(amt*255); 2322 } else { 2323 disposeResizeBuffer(); 2324 } 2325 } 2326 2327 final Rect dirty = mDirty; 2328 if (mSurfaceHolder != null) { 2329 // The app owns the surface, we won't draw. 2330 dirty.setEmpty(); 2331 if (animating) { 2332 if (mScroller != null) { 2333 mScroller.abortAnimation(); 2334 } 2335 disposeResizeBuffer(); 2336 } 2337 return; 2338 } 2339 2340 if (fullRedrawNeeded) { 2341 attachInfo.mIgnoreDirtyState = true; 2342 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2343 } 2344 2345 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2346 Log.v(TAG, "Draw " + mView + "/" 2347 + mWindowAttributes.getTitle() 2348 + ": dirty={" + dirty.left + "," + dirty.top 2349 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2350 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2351 appScale + ", width=" + mWidth + ", height=" + mHeight); 2352 } 2353 2354 invalidateDisplayLists(); 2355 2356 attachInfo.mTreeObserver.dispatchOnDraw(); 2357 2358 if (!dirty.isEmpty() || mIsAnimating) { 2359 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2360 // Draw with hardware renderer. 2361 mIsAnimating = false; 2362 mHardwareYOffset = yoff; 2363 mResizeAlpha = resizeAlpha; 2364 2365 mCurrentDirty.set(dirty); 2366 dirty.setEmpty(); 2367 2368 attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2369 animating ? null : mCurrentDirty); 2370 } else { 2371 // If we get here with a disabled & requested hardware renderer, something went 2372 // wrong (an invalidate posted right before we destroyed the hardware surface 2373 // for instance) so we should just bail out. Locking the surface with software 2374 // rendering at this point would lock it forever and prevent hardware renderer 2375 // from doing its job when it comes back. 2376 // Before we request a new frame we must however attempt to reinitiliaze the 2377 // hardware renderer if it's in requested state. This would happen after an 2378 // eglTerminate() for instance. 2379 if (attachInfo.mHardwareRenderer != null && 2380 !attachInfo.mHardwareRenderer.isEnabled() && 2381 attachInfo.mHardwareRenderer.isRequested()) { 2382 2383 try { 2384 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2385 mHolder.getSurface()); 2386 } catch (Surface.OutOfResourcesException e) { 2387 handleOutOfResourcesException(e); 2388 return; 2389 } 2390 2391 mFullRedrawNeeded = true; 2392 scheduleTraversals(); 2393 return; 2394 } 2395 2396 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2397 return; 2398 } 2399 } 2400 } 2401 2402 if (animating) { 2403 mFullRedrawNeeded = true; 2404 scheduleTraversals(); 2405 } 2406 } 2407 2408 /** 2409 * @return true if drawing was succesfull, false if an error occurred 2410 */ 2411 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2412 boolean scalingRequired, Rect dirty) { 2413 2414 // Draw with software renderer. 2415 Canvas canvas; 2416 try { 2417 int left = dirty.left; 2418 int top = dirty.top; 2419 int right = dirty.right; 2420 int bottom = dirty.bottom; 2421 2422 canvas = mSurface.lockCanvas(dirty); 2423 2424 // The dirty rectangle can be modified by Surface.lockCanvas() 2425 //noinspection ConstantConditions 2426 if (left != dirty.left || top != dirty.top || right != dirty.right || 2427 bottom != dirty.bottom) { 2428 attachInfo.mIgnoreDirtyState = true; 2429 } 2430 2431 // TODO: Do this in native 2432 canvas.setDensity(mDensity); 2433 } catch (Surface.OutOfResourcesException e) { 2434 handleOutOfResourcesException(e); 2435 return false; 2436 } catch (IllegalArgumentException e) { 2437 Log.e(TAG, "Could not lock surface", e); 2438 // Don't assume this is due to out of memory, it could be 2439 // something else, and if it is something else then we could 2440 // kill stuff (or ourself) for no reason. 2441 mLayoutRequested = true; // ask wm for a new surface next time. 2442 return false; 2443 } 2444 2445 try { 2446 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2447 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2448 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2449 //canvas.drawARGB(255, 255, 0, 0); 2450 } 2451 2452 // If this bitmap's format includes an alpha channel, we 2453 // need to clear it before drawing so that the child will 2454 // properly re-composite its drawing on a transparent 2455 // background. This automatically respects the clip/dirty region 2456 // or 2457 // If we are applying an offset, we need to clear the area 2458 // where the offset doesn't appear to avoid having garbage 2459 // left in the blank areas. 2460 if (!canvas.isOpaque() || yoff != 0) { 2461 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2462 } 2463 2464 dirty.setEmpty(); 2465 mIsAnimating = false; 2466 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2467 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2468 2469 if (DEBUG_DRAW) { 2470 Context cxt = mView.getContext(); 2471 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2472 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2473 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2474 } 2475 try { 2476 canvas.translate(0, -yoff); 2477 if (mTranslator != null) { 2478 mTranslator.translateCanvas(canvas); 2479 } 2480 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2481 attachInfo.mSetIgnoreDirtyState = false; 2482 2483 mView.draw(canvas); 2484 2485 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2486 } finally { 2487 if (!attachInfo.mSetIgnoreDirtyState) { 2488 // Only clear the flag if it was not set during the mView.draw() call 2489 attachInfo.mIgnoreDirtyState = false; 2490 } 2491 } 2492 } finally { 2493 try { 2494 surface.unlockCanvasAndPost(canvas); 2495 } catch (IllegalArgumentException e) { 2496 Log.e(TAG, "Could not unlock surface", e); 2497 mLayoutRequested = true; // ask wm for a new surface next time. 2498 //noinspection ReturnInsideFinallyBlock 2499 return false; 2500 } 2501 2502 if (LOCAL_LOGV) { 2503 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2504 } 2505 } 2506 return true; 2507 } 2508 2509 /** 2510 * We want to draw a highlight around the current accessibility focused. 2511 * Since adding a style for all possible view is not a viable option we 2512 * have this specialized drawing method. 2513 * 2514 * Note: We are doing this here to be able to draw the highlight for 2515 * virtual views in addition to real ones. 2516 * 2517 * @param canvas The canvas on which to draw. 2518 */ 2519 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2520 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2521 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2522 return; 2523 } 2524 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2525 return; 2526 } 2527 Drawable drawable = getAccessibilityFocusedDrawable(); 2528 if (drawable == null) { 2529 return; 2530 } 2531 AccessibilityNodeProvider provider = 2532 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2533 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2534 if (provider == null) { 2535 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2536 } else { 2537 if (mAccessibilityFocusedVirtualView == null) { 2538 return; 2539 } 2540 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2541 } 2542 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2543 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2544 drawable.setBounds(bounds); 2545 drawable.draw(canvas); 2546 } 2547 2548 private Drawable getAccessibilityFocusedDrawable() { 2549 if (mAttachInfo != null) { 2550 // Lazily load the accessibility focus drawable. 2551 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2552 TypedValue value = new TypedValue(); 2553 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2554 R.attr.accessibilityFocusedDrawable, value, true); 2555 if (resolved) { 2556 mAttachInfo.mAccessibilityFocusDrawable = 2557 mView.mContext.getResources().getDrawable(value.resourceId); 2558 } 2559 } 2560 return mAttachInfo.mAccessibilityFocusDrawable; 2561 } 2562 return null; 2563 } 2564 2565 void invalidateDisplayLists() { 2566 final ArrayList<DisplayList> displayLists = mDisplayLists; 2567 final int count = displayLists.size(); 2568 2569 for (int i = 0; i < count; i++) { 2570 final DisplayList displayList = displayLists.get(i); 2571 if (displayList.isDirty()) { 2572 displayList.clear(); 2573 } 2574 } 2575 2576 displayLists.clear(); 2577 } 2578 2579 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2580 final View.AttachInfo attachInfo = mAttachInfo; 2581 final Rect ci = attachInfo.mContentInsets; 2582 final Rect vi = attachInfo.mVisibleInsets; 2583 int scrollY = 0; 2584 boolean handled = false; 2585 2586 if (vi.left > ci.left || vi.top > ci.top 2587 || vi.right > ci.right || vi.bottom > ci.bottom) { 2588 // We'll assume that we aren't going to change the scroll 2589 // offset, since we want to avoid that unless it is actually 2590 // going to make the focus visible... otherwise we scroll 2591 // all over the place. 2592 scrollY = mScrollY; 2593 // We can be called for two different situations: during a draw, 2594 // to update the scroll position if the focus has changed (in which 2595 // case 'rectangle' is null), or in response to a 2596 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2597 // is non-null and we just want to scroll to whatever that 2598 // rectangle is). 2599 View focus = mView.findFocus(); 2600 if (focus == null) { 2601 return false; 2602 } 2603 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2604 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2605 // If the focus has changed, then ignore any requests to scroll 2606 // to a rectangle; first we want to make sure the entire focus 2607 // view is visible. 2608 rectangle = null; 2609 } 2610 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2611 + " rectangle=" + rectangle + " ci=" + ci 2612 + " vi=" + vi); 2613 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2614 // Optimization: if the focus hasn't changed since last 2615 // time, and no layout has happened, then just leave things 2616 // as they are. 2617 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2618 + mScrollY + " vi=" + vi.toShortString()); 2619 } else if (focus != null) { 2620 // We need to determine if the currently focused view is 2621 // within the visible part of the window and, if not, apply 2622 // a pan so it can be seen. 2623 mLastScrolledFocus = new WeakReference<View>(focus); 2624 mScrollMayChange = false; 2625 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2626 // Try to find the rectangle from the focus view. 2627 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2628 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2629 + mView.getWidth() + " h=" + mView.getHeight() 2630 + " ci=" + ci.toShortString() 2631 + " vi=" + vi.toShortString()); 2632 if (rectangle == null) { 2633 focus.getFocusedRect(mTempRect); 2634 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2635 + ": focusRect=" + mTempRect.toShortString()); 2636 if (mView instanceof ViewGroup) { 2637 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2638 focus, mTempRect); 2639 } 2640 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2641 "Focus in window: focusRect=" 2642 + mTempRect.toShortString() 2643 + " visRect=" + mVisRect.toShortString()); 2644 } else { 2645 mTempRect.set(rectangle); 2646 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2647 "Request scroll to rect: " 2648 + mTempRect.toShortString() 2649 + " visRect=" + mVisRect.toShortString()); 2650 } 2651 if (mTempRect.intersect(mVisRect)) { 2652 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2653 "Focus window visible rect: " 2654 + mTempRect.toShortString()); 2655 if (mTempRect.height() > 2656 (mView.getHeight()-vi.top-vi.bottom)) { 2657 // If the focus simply is not going to fit, then 2658 // best is probably just to leave things as-is. 2659 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2660 "Too tall; leaving scrollY=" + scrollY); 2661 } else if ((mTempRect.top-scrollY) < vi.top) { 2662 scrollY -= vi.top - (mTempRect.top-scrollY); 2663 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2664 "Top covered; scrollY=" + scrollY); 2665 } else if ((mTempRect.bottom-scrollY) 2666 > (mView.getHeight()-vi.bottom)) { 2667 scrollY += (mTempRect.bottom-scrollY) 2668 - (mView.getHeight()-vi.bottom); 2669 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2670 "Bottom covered; scrollY=" + scrollY); 2671 } 2672 handled = true; 2673 } 2674 } 2675 } 2676 } 2677 2678 if (scrollY != mScrollY) { 2679 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2680 + mScrollY + " , new=" + scrollY); 2681 if (!immediate && mResizeBuffer == null) { 2682 if (mScroller == null) { 2683 mScroller = new Scroller(mView.getContext()); 2684 } 2685 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2686 } else if (mScroller != null) { 2687 mScroller.abortAnimation(); 2688 } 2689 mScrollY = scrollY; 2690 } 2691 2692 return handled; 2693 } 2694 2695 /** 2696 * @hide 2697 */ 2698 public View getAccessibilityFocusedHost() { 2699 return mAccessibilityFocusedHost; 2700 } 2701 2702 /** 2703 * @hide 2704 */ 2705 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2706 return mAccessibilityFocusedVirtualView; 2707 } 2708 2709 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2710 // If we have a virtual view with accessibility focus we need 2711 // to clear the focus and invalidate the virtual view bounds. 2712 if (mAccessibilityFocusedVirtualView != null) { 2713 2714 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2715 View focusHost = mAccessibilityFocusedHost; 2716 focusHost.clearAccessibilityFocusNoCallbacks(); 2717 2718 // Wipe the state of the current accessibility focus since 2719 // the call into the provider to clear accessibility focus 2720 // will fire an accessibility event which will end up calling 2721 // this method and we want to have clean state when this 2722 // invocation happens. 2723 mAccessibilityFocusedHost = null; 2724 mAccessibilityFocusedVirtualView = null; 2725 2726 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2727 if (provider != null) { 2728 // Invalidate the area of the cleared accessibility focus. 2729 focusNode.getBoundsInParent(mTempRect); 2730 focusHost.invalidate(mTempRect); 2731 // Clear accessibility focus in the virtual node. 2732 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2733 focusNode.getSourceNodeId()); 2734 provider.performAction(virtualNodeId, 2735 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2736 } 2737 focusNode.recycle(); 2738 } 2739 if (mAccessibilityFocusedHost != null) { 2740 // Clear accessibility focus in the view. 2741 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2742 } 2743 2744 // Set the new focus host and node. 2745 mAccessibilityFocusedHost = view; 2746 mAccessibilityFocusedVirtualView = node; 2747 } 2748 2749 public void requestChildFocus(View child, View focused) { 2750 if (DEBUG_INPUT_RESIZE) { 2751 Log.v(TAG, "Request child focus: focus now " + focused); 2752 } 2753 checkThread(); 2754 scheduleTraversals(); 2755 } 2756 2757 public void clearChildFocus(View child) { 2758 if (DEBUG_INPUT_RESIZE) { 2759 Log.v(TAG, "Clearing child focus"); 2760 } 2761 checkThread(); 2762 scheduleTraversals(); 2763 } 2764 2765 @Override 2766 public ViewParent getParentForAccessibility() { 2767 return null; 2768 } 2769 2770 public void focusableViewAvailable(View v) { 2771 checkThread(); 2772 if (mView != null) { 2773 if (!mView.hasFocus()) { 2774 v.requestFocus(); 2775 } else { 2776 // the one case where will transfer focus away from the current one 2777 // is if the current view is a view group that prefers to give focus 2778 // to its children first AND the view is a descendant of it. 2779 View focused = mView.findFocus(); 2780 if (focused instanceof ViewGroup) { 2781 ViewGroup group = (ViewGroup) focused; 2782 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2783 && isViewDescendantOf(v, focused)) { 2784 v.requestFocus(); 2785 } 2786 } 2787 } 2788 } 2789 } 2790 2791 public void recomputeViewAttributes(View child) { 2792 checkThread(); 2793 if (mView == child) { 2794 mAttachInfo.mRecomputeGlobalAttributes = true; 2795 if (!mWillDrawSoon) { 2796 scheduleTraversals(); 2797 } 2798 } 2799 } 2800 2801 void dispatchDetachedFromWindow() { 2802 if (mView != null && mView.mAttachInfo != null) { 2803 if (mAttachInfo.mHardwareRenderer != null && 2804 mAttachInfo.mHardwareRenderer.isEnabled()) { 2805 mAttachInfo.mHardwareRenderer.validate(); 2806 } 2807 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2808 mView.dispatchDetachedFromWindow(); 2809 } 2810 2811 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2812 mAccessibilityManager.removeAccessibilityStateChangeListener( 2813 mAccessibilityInteractionConnectionManager); 2814 removeSendWindowContentChangedCallback(); 2815 2816 destroyHardwareRenderer(); 2817 2818 setAccessibilityFocus(null, null); 2819 2820 mView = null; 2821 mAttachInfo.mRootView = null; 2822 mAttachInfo.mSurface = null; 2823 2824 mSurface.release(); 2825 2826 if (mInputQueueCallback != null && mInputQueue != null) { 2827 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2828 mInputQueueCallback = null; 2829 mInputQueue = null; 2830 } else if (mInputEventReceiver != null) { 2831 mInputEventReceiver.dispose(); 2832 mInputEventReceiver = null; 2833 } 2834 try { 2835 mWindowSession.remove(mWindow); 2836 } catch (RemoteException e) { 2837 } 2838 2839 // Dispose the input channel after removing the window so the Window Manager 2840 // doesn't interpret the input channel being closed as an abnormal termination. 2841 if (mInputChannel != null) { 2842 mInputChannel.dispose(); 2843 mInputChannel = null; 2844 } 2845 2846 unscheduleTraversals(); 2847 } 2848 2849 void updateConfiguration(Configuration config, boolean force) { 2850 if (DEBUG_CONFIGURATION) Log.v(TAG, 2851 "Applying new config to window " 2852 + mWindowAttributes.getTitle() 2853 + ": " + config); 2854 2855 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2856 if (ci != null) { 2857 config = new Configuration(config); 2858 ci.applyToConfiguration(mNoncompatDensity, config); 2859 } 2860 2861 synchronized (sConfigCallbacks) { 2862 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2863 sConfigCallbacks.get(i).onConfigurationChanged(config); 2864 } 2865 } 2866 if (mView != null) { 2867 // At this point the resources have been updated to 2868 // have the most recent config, whatever that is. Use 2869 // the one in them which may be newer. 2870 config = mView.getResources().getConfiguration(); 2871 if (force || mLastConfiguration.diff(config) != 0) { 2872 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2873 final int currentLayoutDirection = config.getLayoutDirection(); 2874 mLastConfiguration.setTo(config); 2875 if (lastLayoutDirection != currentLayoutDirection && 2876 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2877 mView.setLayoutDirection(currentLayoutDirection); 2878 } 2879 mView.dispatchConfigurationChanged(config); 2880 } 2881 } 2882 } 2883 2884 /** 2885 * Return true if child is an ancestor of parent, (or equal to the parent). 2886 */ 2887 public static boolean isViewDescendantOf(View child, View parent) { 2888 if (child == parent) { 2889 return true; 2890 } 2891 2892 final ViewParent theParent = child.getParent(); 2893 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2894 } 2895 2896 private static void forceLayout(View view) { 2897 view.forceLayout(); 2898 if (view instanceof ViewGroup) { 2899 ViewGroup group = (ViewGroup) view; 2900 final int count = group.getChildCount(); 2901 for (int i = 0; i < count; i++) { 2902 forceLayout(group.getChildAt(i)); 2903 } 2904 } 2905 } 2906 2907 private final static int MSG_INVALIDATE = 1; 2908 private final static int MSG_INVALIDATE_RECT = 2; 2909 private final static int MSG_DIE = 3; 2910 private final static int MSG_RESIZED = 4; 2911 private final static int MSG_RESIZED_REPORT = 5; 2912 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2913 private final static int MSG_DISPATCH_KEY = 7; 2914 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2915 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2916 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2917 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2918 private final static int MSG_CHECK_FOCUS = 13; 2919 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2920 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2921 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2922 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2923 private final static int MSG_UPDATE_CONFIGURATION = 18; 2924 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2925 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2926 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2927 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2928 private final static int MSG_INVALIDATE_WORLD = 23; 2929 private final static int MSG_WINDOW_MOVED = 24; 2930 2931 final class ViewRootHandler extends Handler { 2932 @Override 2933 public String getMessageName(Message message) { 2934 switch (message.what) { 2935 case MSG_INVALIDATE: 2936 return "MSG_INVALIDATE"; 2937 case MSG_INVALIDATE_RECT: 2938 return "MSG_INVALIDATE_RECT"; 2939 case MSG_DIE: 2940 return "MSG_DIE"; 2941 case MSG_RESIZED: 2942 return "MSG_RESIZED"; 2943 case MSG_RESIZED_REPORT: 2944 return "MSG_RESIZED_REPORT"; 2945 case MSG_WINDOW_FOCUS_CHANGED: 2946 return "MSG_WINDOW_FOCUS_CHANGED"; 2947 case MSG_DISPATCH_KEY: 2948 return "MSG_DISPATCH_KEY"; 2949 case MSG_DISPATCH_APP_VISIBILITY: 2950 return "MSG_DISPATCH_APP_VISIBILITY"; 2951 case MSG_DISPATCH_GET_NEW_SURFACE: 2952 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2953 case MSG_DISPATCH_KEY_FROM_IME: 2954 return "MSG_DISPATCH_KEY_FROM_IME"; 2955 case MSG_FINISH_INPUT_CONNECTION: 2956 return "MSG_FINISH_INPUT_CONNECTION"; 2957 case MSG_CHECK_FOCUS: 2958 return "MSG_CHECK_FOCUS"; 2959 case MSG_CLOSE_SYSTEM_DIALOGS: 2960 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2961 case MSG_DISPATCH_DRAG_EVENT: 2962 return "MSG_DISPATCH_DRAG_EVENT"; 2963 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2964 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2965 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2966 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2967 case MSG_UPDATE_CONFIGURATION: 2968 return "MSG_UPDATE_CONFIGURATION"; 2969 case MSG_PROCESS_INPUT_EVENTS: 2970 return "MSG_PROCESS_INPUT_EVENTS"; 2971 case MSG_DISPATCH_SCREEN_STATE: 2972 return "MSG_DISPATCH_SCREEN_STATE"; 2973 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2974 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2975 case MSG_DISPATCH_DONE_ANIMATING: 2976 return "MSG_DISPATCH_DONE_ANIMATING"; 2977 case MSG_WINDOW_MOVED: 2978 return "MSG_WINDOW_MOVED"; 2979 } 2980 return super.getMessageName(message); 2981 } 2982 2983 @Override 2984 public void handleMessage(Message msg) { 2985 switch (msg.what) { 2986 case MSG_INVALIDATE: 2987 ((View) msg.obj).invalidate(); 2988 break; 2989 case MSG_INVALIDATE_RECT: 2990 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2991 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2992 info.recycle(); 2993 break; 2994 case MSG_PROCESS_INPUT_EVENTS: 2995 mProcessInputEventsScheduled = false; 2996 doProcessInputEvents(); 2997 break; 2998 case MSG_DISPATCH_APP_VISIBILITY: 2999 handleAppVisibility(msg.arg1 != 0); 3000 break; 3001 case MSG_DISPATCH_GET_NEW_SURFACE: 3002 handleGetNewSurface(); 3003 break; 3004 case MSG_RESIZED: { 3005 // Recycled in the fall through... 3006 SomeArgs args = (SomeArgs) msg.obj; 3007 if (mWinFrame.equals(args.arg1) 3008 && mPendingOverscanInsets.equals(args.arg5) 3009 && mPendingContentInsets.equals(args.arg2) 3010 && mPendingVisibleInsets.equals(args.arg3) 3011 && args.arg4 == null) { 3012 break; 3013 } 3014 } // fall through... 3015 case MSG_RESIZED_REPORT: 3016 if (mAdded) { 3017 SomeArgs args = (SomeArgs) msg.obj; 3018 3019 Configuration config = (Configuration) args.arg4; 3020 if (config != null) { 3021 updateConfiguration(config, false); 3022 } 3023 3024 mWinFrame.set((Rect) args.arg1); 3025 mPendingOverscanInsets.set((Rect) args.arg5); 3026 mPendingContentInsets.set((Rect) args.arg2); 3027 mPendingVisibleInsets.set((Rect) args.arg3); 3028 3029 args.recycle(); 3030 3031 if (msg.what == MSG_RESIZED_REPORT) { 3032 mReportNextDraw = true; 3033 } 3034 3035 if (mView != null) { 3036 forceLayout(mView); 3037 } 3038 3039 requestLayout(); 3040 } 3041 break; 3042 case MSG_WINDOW_MOVED: 3043 if (mAdded) { 3044 final int w = mWinFrame.width(); 3045 final int h = mWinFrame.height(); 3046 final int l = msg.arg1; 3047 final int t = msg.arg2; 3048 mWinFrame.left = l; 3049 mWinFrame.right = l + w; 3050 mWinFrame.top = t; 3051 mWinFrame.bottom = t + h; 3052 3053 if (mView != null) { 3054 forceLayout(mView); 3055 } 3056 requestLayout(); 3057 } 3058 break; 3059 case MSG_WINDOW_FOCUS_CHANGED: { 3060 if (mAdded) { 3061 boolean hasWindowFocus = msg.arg1 != 0; 3062 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3063 3064 profileRendering(hasWindowFocus); 3065 3066 if (hasWindowFocus) { 3067 boolean inTouchMode = msg.arg2 != 0; 3068 ensureTouchModeLocally(inTouchMode); 3069 3070 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3071 mFullRedrawNeeded = true; 3072 try { 3073 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3074 mWidth, mHeight, mHolder.getSurface()); 3075 } catch (Surface.OutOfResourcesException e) { 3076 Log.e(TAG, "OutOfResourcesException locking surface", e); 3077 try { 3078 if (!mWindowSession.outOfMemory(mWindow)) { 3079 Slog.w(TAG, "No processes killed for memory; killing self"); 3080 Process.killProcess(Process.myPid()); 3081 } 3082 } catch (RemoteException ex) { 3083 } 3084 // Retry in a bit. 3085 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3086 return; 3087 } 3088 } 3089 } 3090 3091 mLastWasImTarget = WindowManager.LayoutParams 3092 .mayUseInputMethod(mWindowAttributes.flags); 3093 3094 InputMethodManager imm = InputMethodManager.peekInstance(); 3095 if (mView != null) { 3096 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3097 imm.startGettingWindowFocus(mView); 3098 } 3099 mAttachInfo.mKeyDispatchState.reset(); 3100 mView.dispatchWindowFocusChanged(hasWindowFocus); 3101 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3102 } 3103 3104 // Note: must be done after the focus change callbacks, 3105 // so all of the view state is set up correctly. 3106 if (hasWindowFocus) { 3107 if (imm != null && mLastWasImTarget) { 3108 imm.onWindowFocus(mView, mView.findFocus(), 3109 mWindowAttributes.softInputMode, 3110 !mHasHadWindowFocus, mWindowAttributes.flags); 3111 } 3112 // Clear the forward bit. We can just do this directly, since 3113 // the window manager doesn't care about it. 3114 mWindowAttributes.softInputMode &= 3115 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3116 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3117 .softInputMode &= 3118 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3119 mHasHadWindowFocus = true; 3120 } 3121 3122 setAccessibilityFocus(null, null); 3123 3124 if (mView != null && mAccessibilityManager.isEnabled()) { 3125 if (hasWindowFocus) { 3126 mView.sendAccessibilityEvent( 3127 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3128 } 3129 } 3130 } 3131 } break; 3132 case MSG_DIE: 3133 doDie(); 3134 break; 3135 case MSG_DISPATCH_KEY: { 3136 KeyEvent event = (KeyEvent)msg.obj; 3137 enqueueInputEvent(event, null, 0, true); 3138 } break; 3139 case MSG_DISPATCH_KEY_FROM_IME: { 3140 if (LOCAL_LOGV) Log.v( 3141 TAG, "Dispatching key " 3142 + msg.obj + " from IME to " + mView); 3143 KeyEvent event = (KeyEvent)msg.obj; 3144 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3145 // The IME is trying to say this event is from the 3146 // system! Bad bad bad! 3147 //noinspection UnusedAssignment 3148 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3149 } 3150 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3151 } break; 3152 case MSG_FINISH_INPUT_CONNECTION: { 3153 InputMethodManager imm = InputMethodManager.peekInstance(); 3154 if (imm != null) { 3155 imm.reportFinishInputConnection((InputConnection)msg.obj); 3156 } 3157 } break; 3158 case MSG_CHECK_FOCUS: { 3159 InputMethodManager imm = InputMethodManager.peekInstance(); 3160 if (imm != null) { 3161 imm.checkFocus(); 3162 } 3163 } break; 3164 case MSG_CLOSE_SYSTEM_DIALOGS: { 3165 if (mView != null) { 3166 mView.onCloseSystemDialogs((String)msg.obj); 3167 } 3168 } break; 3169 case MSG_DISPATCH_DRAG_EVENT: 3170 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3171 DragEvent event = (DragEvent)msg.obj; 3172 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3173 handleDragEvent(event); 3174 } break; 3175 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3176 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3177 } break; 3178 case MSG_UPDATE_CONFIGURATION: { 3179 Configuration config = (Configuration)msg.obj; 3180 if (config.isOtherSeqNewer(mLastConfiguration)) { 3181 config = mLastConfiguration; 3182 } 3183 updateConfiguration(config, false); 3184 } break; 3185 case MSG_DISPATCH_SCREEN_STATE: { 3186 if (mView != null) { 3187 handleScreenStateChange(msg.arg1 == 1); 3188 } 3189 } break; 3190 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3191 setAccessibilityFocus(null, null); 3192 } break; 3193 case MSG_DISPATCH_DONE_ANIMATING: { 3194 handleDispatchDoneAnimating(); 3195 } break; 3196 case MSG_INVALIDATE_WORLD: { 3197 if (mView != null) { 3198 invalidateWorld(mView); 3199 } 3200 } break; 3201 } 3202 } 3203 } 3204 3205 final ViewRootHandler mHandler = new ViewRootHandler(); 3206 3207 /** 3208 * Something in the current window tells us we need to change the touch mode. For 3209 * example, we are not in touch mode, and the user touches the screen. 3210 * 3211 * If the touch mode has changed, tell the window manager, and handle it locally. 3212 * 3213 * @param inTouchMode Whether we want to be in touch mode. 3214 * @return True if the touch mode changed and focus changed was changed as a result 3215 */ 3216 boolean ensureTouchMode(boolean inTouchMode) { 3217 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3218 + "touch mode is " + mAttachInfo.mInTouchMode); 3219 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3220 3221 // tell the window manager 3222 try { 3223 mWindowSession.setInTouchMode(inTouchMode); 3224 } catch (RemoteException e) { 3225 throw new RuntimeException(e); 3226 } 3227 3228 // handle the change 3229 return ensureTouchModeLocally(inTouchMode); 3230 } 3231 3232 /** 3233 * Ensure that the touch mode for this window is set, and if it is changing, 3234 * take the appropriate action. 3235 * @param inTouchMode Whether we want to be in touch mode. 3236 * @return True if the touch mode changed and focus changed was changed as a result 3237 */ 3238 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3239 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3240 + "touch mode is " + mAttachInfo.mInTouchMode); 3241 3242 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3243 3244 mAttachInfo.mInTouchMode = inTouchMode; 3245 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3246 3247 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3248 } 3249 3250 private boolean enterTouchMode() { 3251 if (mView != null) { 3252 if (mView.hasFocus()) { 3253 // note: not relying on mFocusedView here because this could 3254 // be when the window is first being added, and mFocused isn't 3255 // set yet. 3256 final View focused = mView.findFocus(); 3257 if (focused != null && !focused.isFocusableInTouchMode()) { 3258 final ViewGroup ancestorToTakeFocus = 3259 findAncestorToTakeFocusInTouchMode(focused); 3260 if (ancestorToTakeFocus != null) { 3261 // there is an ancestor that wants focus after its descendants that 3262 // is focusable in touch mode.. give it focus 3263 return ancestorToTakeFocus.requestFocus(); 3264 } else { 3265 // nothing appropriate to have focus in touch mode, clear it out 3266 focused.unFocus(); 3267 return true; 3268 } 3269 } 3270 } 3271 } 3272 return false; 3273 } 3274 3275 /** 3276 * Find an ancestor of focused that wants focus after its descendants and is 3277 * focusable in touch mode. 3278 * @param focused The currently focused view. 3279 * @return An appropriate view, or null if no such view exists. 3280 */ 3281 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3282 ViewParent parent = focused.getParent(); 3283 while (parent instanceof ViewGroup) { 3284 final ViewGroup vgParent = (ViewGroup) parent; 3285 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3286 && vgParent.isFocusableInTouchMode()) { 3287 return vgParent; 3288 } 3289 if (vgParent.isRootNamespace()) { 3290 return null; 3291 } else { 3292 parent = vgParent.getParent(); 3293 } 3294 } 3295 return null; 3296 } 3297 3298 private boolean leaveTouchMode() { 3299 if (mView != null) { 3300 if (mView.hasFocus()) { 3301 View focusedView = mView.findFocus(); 3302 if (!(focusedView instanceof ViewGroup)) { 3303 // some view has focus, let it keep it 3304 return false; 3305 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3306 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3307 // some view group has focus, and doesn't prefer its children 3308 // over itself for focus, so let them keep it. 3309 return false; 3310 } 3311 } 3312 3313 // find the best view to give focus to in this brave new non-touch-mode 3314 // world 3315 final View focused = focusSearch(null, View.FOCUS_DOWN); 3316 if (focused != null) { 3317 return focused.requestFocus(View.FOCUS_DOWN); 3318 } 3319 } 3320 return false; 3321 } 3322 3323 /** 3324 * Base class for implementing a stage in the chain of responsibility 3325 * for processing input events. 3326 * <p> 3327 * Events are delivered to the stage by the {@link #deliver} method. The stage 3328 * then has the choice of finishing the event or forwarding it to the next stage. 3329 * </p> 3330 */ 3331 abstract class InputStage { 3332 private final InputStage mNext; 3333 3334 protected static final int FORWARD = 0; 3335 protected static final int FINISH_HANDLED = 1; 3336 protected static final int FINISH_NOT_HANDLED = 2; 3337 3338 /** 3339 * Creates an input stage. 3340 * @param next The next stage to which events should be forwarded. 3341 */ 3342 public InputStage(InputStage next) { 3343 mNext = next; 3344 } 3345 3346 /** 3347 * Delivers an event to be processed. 3348 */ 3349 public final void deliver(QueuedInputEvent q) { 3350 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3351 forward(q); 3352 } else if (mView == null || !mAdded) { 3353 finish(q, false); 3354 } else { 3355 apply(q, onProcess(q)); 3356 } 3357 } 3358 3359 /** 3360 * Marks the the input event as finished then forwards it to the next stage. 3361 */ 3362 protected void finish(QueuedInputEvent q, boolean handled) { 3363 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3364 if (handled) { 3365 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3366 } 3367 forward(q); 3368 } 3369 3370 /** 3371 * Forwards the event to the next stage. 3372 */ 3373 protected void forward(QueuedInputEvent q) { 3374 onDeliverToNext(q); 3375 } 3376 3377 /** 3378 * Applies a result code from {@link #onProcess} to the specified event. 3379 */ 3380 protected void apply(QueuedInputEvent q, int result) { 3381 if (result == FORWARD) { 3382 forward(q); 3383 } else if (result == FINISH_HANDLED) { 3384 finish(q, true); 3385 } else if (result == FINISH_NOT_HANDLED) { 3386 finish(q, false); 3387 } else { 3388 throw new IllegalArgumentException("Invalid result: " + result); 3389 } 3390 } 3391 3392 /** 3393 * Called when an event is ready to be processed. 3394 * @return A result code indicating how the event was handled. 3395 */ 3396 protected int onProcess(QueuedInputEvent q) { 3397 return FORWARD; 3398 } 3399 3400 /** 3401 * Called when an event is being delivered to the next stage. 3402 */ 3403 protected void onDeliverToNext(QueuedInputEvent q) { 3404 if (mNext != null) { 3405 mNext.deliver(q); 3406 } else { 3407 finishInputEvent(q); 3408 } 3409 } 3410 } 3411 3412 /** 3413 * Base class for implementing an input pipeline stage that supports 3414 * asynchronous and out-of-order processing of input events. 3415 * <p> 3416 * In addition to what a normal input stage can do, an asynchronous 3417 * input stage may also defer an input event that has been delivered to it 3418 * and finish or forward it later. 3419 * </p> 3420 */ 3421 abstract class AsyncInputStage extends InputStage { 3422 private final String mTraceCounter; 3423 3424 private QueuedInputEvent mQueueHead; 3425 private QueuedInputEvent mQueueTail; 3426 private int mQueueLength; 3427 3428 protected static final int DEFER = 3; 3429 3430 /** 3431 * Creates an asynchronous input stage. 3432 * @param next The next stage to which events should be forwarded. 3433 * @param traceCounter The name of a counter to record the size of 3434 * the queue of pending events. 3435 */ 3436 public AsyncInputStage(InputStage next, String traceCounter) { 3437 super(next); 3438 mTraceCounter = traceCounter; 3439 } 3440 3441 /** 3442 * Marks the event as deferred, which is to say that it will be handled 3443 * asynchronously. The caller is responsible for calling {@link #forward} 3444 * or {@link #finish} later when it is done handling the event. 3445 */ 3446 protected void defer(QueuedInputEvent q) { 3447 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3448 enqueue(q); 3449 } 3450 3451 @Override 3452 protected void forward(QueuedInputEvent q) { 3453 // Clear the deferred flag. 3454 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3455 3456 // Fast path if the queue is empty. 3457 QueuedInputEvent curr = mQueueHead; 3458 if (curr == null) { 3459 super.forward(q); 3460 return; 3461 } 3462 3463 // Determine whether the event must be serialized behind any others 3464 // before it can be delivered to the next stage. This is done because 3465 // deferred events might be handled out of order by the stage. 3466 final int deviceId = q.mEvent.getDeviceId(); 3467 QueuedInputEvent prev = null; 3468 boolean blocked = false; 3469 while (curr != null && curr != q) { 3470 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3471 blocked = true; 3472 } 3473 prev = curr; 3474 curr = curr.mNext; 3475 } 3476 3477 // If the event is blocked, then leave it in the queue to be delivered later. 3478 // Note that the event might not yet be in the queue if it was not previously 3479 // deferred so we will enqueue it if needed. 3480 if (blocked) { 3481 if (curr == null) { 3482 enqueue(q); 3483 } 3484 return; 3485 } 3486 3487 // The event is not blocked. Deliver it immediately. 3488 if (curr != null) { 3489 curr = curr.mNext; 3490 dequeue(q, prev); 3491 } 3492 super.forward(q); 3493 3494 // Dequeuing this event may have unblocked successors. Deliver them. 3495 while (curr != null) { 3496 if (deviceId == curr.mEvent.getDeviceId()) { 3497 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3498 break; 3499 } 3500 QueuedInputEvent next = curr.mNext; 3501 dequeue(curr, prev); 3502 super.forward(curr); 3503 curr = next; 3504 } else { 3505 prev = curr; 3506 curr = curr.mNext; 3507 } 3508 } 3509 } 3510 3511 @Override 3512 protected void apply(QueuedInputEvent q, int result) { 3513 if (result == DEFER) { 3514 defer(q); 3515 } else { 3516 super.apply(q, result); 3517 } 3518 } 3519 3520 private void enqueue(QueuedInputEvent q) { 3521 if (mQueueTail == null) { 3522 mQueueHead = q; 3523 mQueueTail = q; 3524 } else { 3525 mQueueTail.mNext = q; 3526 mQueueTail = q; 3527 } 3528 3529 mQueueLength += 1; 3530 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3531 } 3532 3533 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3534 if (prev == null) { 3535 mQueueHead = q.mNext; 3536 } else { 3537 prev.mNext = q.mNext; 3538 } 3539 if (mQueueTail == q) { 3540 mQueueTail = prev; 3541 } 3542 q.mNext = null; 3543 3544 mQueueLength -= 1; 3545 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3546 } 3547 } 3548 3549 /** 3550 * Delivers pre-ime input events to a native activity. 3551 * Does not support pointer events. 3552 */ 3553 final class NativePreImeInputStage extends AsyncInputStage { 3554 public NativePreImeInputStage(InputStage next, String traceCounter) { 3555 super(next, traceCounter); 3556 } 3557 3558 @Override 3559 protected int onProcess(QueuedInputEvent q) { 3560 return FORWARD; 3561 } 3562 } 3563 3564 /** 3565 * Delivers pre-ime input events to the view hierarchy. 3566 * Does not support pointer events. 3567 */ 3568 final class ViewPreImeInputStage extends InputStage { 3569 public ViewPreImeInputStage(InputStage next) { 3570 super(next); 3571 } 3572 3573 @Override 3574 protected int onProcess(QueuedInputEvent q) { 3575 if (q.mEvent instanceof KeyEvent) { 3576 return processKeyEvent(q); 3577 } 3578 return FORWARD; 3579 } 3580 3581 private int processKeyEvent(QueuedInputEvent q) { 3582 final KeyEvent event = (KeyEvent)q.mEvent; 3583 if (mView.dispatchKeyEventPreIme(event)) { 3584 return FINISH_HANDLED; 3585 } 3586 return FORWARD; 3587 } 3588 } 3589 3590 /** 3591 * Delivers input events to the ime. 3592 * Does not support pointer events. 3593 */ 3594 final class ImeInputStage extends AsyncInputStage 3595 implements InputMethodManager.FinishedInputEventCallback { 3596 public ImeInputStage(InputStage next, String traceCounter) { 3597 super(next, traceCounter); 3598 } 3599 3600 @Override 3601 protected int onProcess(QueuedInputEvent q) { 3602 if (mLastWasImTarget) { 3603 InputMethodManager imm = InputMethodManager.peekInstance(); 3604 if (imm != null) { 3605 final InputEvent event = q.mEvent; 3606 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3607 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3608 if (result == InputMethodManager.DISPATCH_HANDLED) { 3609 return FINISH_HANDLED; 3610 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3611 return FINISH_NOT_HANDLED; 3612 } else { 3613 return DEFER; // callback will be invoked later 3614 } 3615 } 3616 } 3617 return FORWARD; 3618 } 3619 3620 @Override 3621 public void onFinishedInputEvent(Object token, boolean handled) { 3622 QueuedInputEvent q = (QueuedInputEvent)token; 3623 if (handled) { 3624 finish(q, true); 3625 return; 3626 } 3627 3628 // If the window doesn't currently have input focus, then drop 3629 // this event. This could be an event that came back from the 3630 // IME dispatch but the window has lost focus in the meantime. 3631 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 3632 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3633 finish(q, false); 3634 return; 3635 } 3636 3637 forward(q); 3638 } 3639 } 3640 3641 /** 3642 * Performs early processing of post-ime input events. 3643 */ 3644 final class EarlyPostImeInputStage extends InputStage { 3645 public EarlyPostImeInputStage(InputStage next) { 3646 super(next); 3647 } 3648 3649 @Override 3650 protected int onProcess(QueuedInputEvent q) { 3651 if (q.mEvent instanceof KeyEvent) { 3652 return processKeyEvent(q); 3653 } else { 3654 final int source = q.mEvent.getSource(); 3655 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3656 return processPointerEvent(q); 3657 } 3658 } 3659 return FORWARD; 3660 } 3661 3662 private int processKeyEvent(QueuedInputEvent q) { 3663 final KeyEvent event = (KeyEvent)q.mEvent; 3664 3665 // If the key's purpose is to exit touch mode then we consume it 3666 // and consider it handled. 3667 if (checkForLeavingTouchModeAndConsume(event)) { 3668 return FINISH_HANDLED; 3669 } 3670 3671 // Make sure the fallback event policy sees all keys that will be 3672 // delivered to the view hierarchy. 3673 mFallbackEventHandler.preDispatchKeyEvent(event); 3674 return FORWARD; 3675 } 3676 3677 private int processPointerEvent(QueuedInputEvent q) { 3678 final MotionEvent event = (MotionEvent)q.mEvent; 3679 3680 // Translate the pointer event for compatibility, if needed. 3681 if (mTranslator != null) { 3682 mTranslator.translateEventInScreenToAppWindow(event); 3683 } 3684 3685 // Enter touch mode on down or scroll. 3686 final int action = event.getAction(); 3687 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3688 ensureTouchMode(true); 3689 } 3690 3691 // Offset the scroll position. 3692 if (mCurScrollY != 0) { 3693 event.offsetLocation(0, mCurScrollY); 3694 } 3695 3696 // Remember the touch position for possible drag-initiation. 3697 if (event.isTouchEvent()) { 3698 mLastTouchPoint.x = event.getRawX(); 3699 mLastTouchPoint.y = event.getRawY(); 3700 } 3701 return FORWARD; 3702 } 3703 } 3704 3705 /** 3706 * Delivers post-ime input events to a native activity. 3707 */ 3708 final class NativePostImeInputStage extends AsyncInputStage { 3709 public NativePostImeInputStage(InputStage next, String traceCounter) { 3710 super(next, traceCounter); 3711 } 3712 3713 @Override 3714 protected int onProcess(QueuedInputEvent q) { 3715 return FORWARD; 3716 } 3717 } 3718 3719 /** 3720 * Delivers post-ime input events to the view hierarchy. 3721 */ 3722 final class ViewPostImeInputStage extends InputStage { 3723 public ViewPostImeInputStage(InputStage next) { 3724 super(next); 3725 } 3726 3727 @Override 3728 protected int onProcess(QueuedInputEvent q) { 3729 if (q.mEvent instanceof KeyEvent) { 3730 return processKeyEvent(q); 3731 } else { 3732 final int source = q.mEvent.getSource(); 3733 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3734 return processPointerEvent(q); 3735 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3736 return processTrackballEvent(q); 3737 } else { 3738 return processGenericMotionEvent(q); 3739 } 3740 } 3741 } 3742 3743 private int processKeyEvent(QueuedInputEvent q) { 3744 final KeyEvent event = (KeyEvent)q.mEvent; 3745 3746 // Deliver the key to the view hierarchy. 3747 if (mView.dispatchKeyEvent(event)) { 3748 return FINISH_HANDLED; 3749 } 3750 3751 // If the Control modifier is held, try to interpret the key as a shortcut. 3752 if (event.getAction() == KeyEvent.ACTION_DOWN 3753 && event.isCtrlPressed() 3754 && event.getRepeatCount() == 0 3755 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3756 if (mView.dispatchKeyShortcutEvent(event)) { 3757 return FINISH_HANDLED; 3758 } 3759 } 3760 3761 // Apply the fallback event policy. 3762 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3763 return FINISH_HANDLED; 3764 } 3765 3766 // Handle automatic focus changes. 3767 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3768 int direction = 0; 3769 switch (event.getKeyCode()) { 3770 case KeyEvent.KEYCODE_DPAD_LEFT: 3771 if (event.hasNoModifiers()) { 3772 direction = View.FOCUS_LEFT; 3773 } 3774 break; 3775 case KeyEvent.KEYCODE_DPAD_RIGHT: 3776 if (event.hasNoModifiers()) { 3777 direction = View.FOCUS_RIGHT; 3778 } 3779 break; 3780 case KeyEvent.KEYCODE_DPAD_UP: 3781 if (event.hasNoModifiers()) { 3782 direction = View.FOCUS_UP; 3783 } 3784 break; 3785 case KeyEvent.KEYCODE_DPAD_DOWN: 3786 if (event.hasNoModifiers()) { 3787 direction = View.FOCUS_DOWN; 3788 } 3789 break; 3790 case KeyEvent.KEYCODE_TAB: 3791 if (event.hasNoModifiers()) { 3792 direction = View.FOCUS_FORWARD; 3793 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3794 direction = View.FOCUS_BACKWARD; 3795 } 3796 break; 3797 } 3798 if (direction != 0) { 3799 View focused = mView.findFocus(); 3800 if (focused != null) { 3801 View v = focused.focusSearch(direction); 3802 if (v != null && v != focused) { 3803 // do the math the get the interesting rect 3804 // of previous focused into the coord system of 3805 // newly focused view 3806 focused.getFocusedRect(mTempRect); 3807 if (mView instanceof ViewGroup) { 3808 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3809 focused, mTempRect); 3810 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3811 v, mTempRect); 3812 } 3813 if (v.requestFocus(direction, mTempRect)) { 3814 playSoundEffect(SoundEffectConstants 3815 .getContantForFocusDirection(direction)); 3816 return FINISH_HANDLED; 3817 } 3818 } 3819 3820 // Give the focused view a last chance to handle the dpad key. 3821 if (mView.dispatchUnhandledMove(focused, direction)) { 3822 return FINISH_HANDLED; 3823 } 3824 } else { 3825 // find the best view to give focus to in this non-touch-mode with no-focus 3826 View v = focusSearch(null, direction); 3827 if (v != null && v.requestFocus(direction)) { 3828 return FINISH_HANDLED; 3829 } 3830 } 3831 } 3832 } 3833 return FORWARD; 3834 } 3835 3836 private int processPointerEvent(QueuedInputEvent q) { 3837 final MotionEvent event = (MotionEvent)q.mEvent; 3838 3839 if (mView.dispatchPointerEvent(event)) { 3840 return FINISH_HANDLED; 3841 } 3842 return FORWARD; 3843 } 3844 3845 private int processTrackballEvent(QueuedInputEvent q) { 3846 final MotionEvent event = (MotionEvent)q.mEvent; 3847 3848 if (mView.dispatchTrackballEvent(event)) { 3849 return FINISH_HANDLED; 3850 } 3851 return FORWARD; 3852 } 3853 3854 private int processGenericMotionEvent(QueuedInputEvent q) { 3855 final MotionEvent event = (MotionEvent)q.mEvent; 3856 3857 // Deliver the event to the view. 3858 if (mView.dispatchGenericMotionEvent(event)) { 3859 return FINISH_HANDLED; 3860 } 3861 return FORWARD; 3862 } 3863 } 3864 3865 /** 3866 * Performs synthesis of new input events from unhandled input events. 3867 */ 3868 final class SyntheticInputStage extends InputStage { 3869 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 3870 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 3871 private final SyntheticTouchNavigationHandler mTouchNavigation = 3872 new SyntheticTouchNavigationHandler(); 3873 3874 public SyntheticInputStage() { 3875 super(null); 3876 } 3877 3878 @Override 3879 protected int onProcess(QueuedInputEvent q) { 3880 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 3881 if (q.mEvent instanceof MotionEvent) { 3882 final MotionEvent event = (MotionEvent)q.mEvent; 3883 final int source = event.getSource(); 3884 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3885 mTrackball.process(event); 3886 return FINISH_HANDLED; 3887 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 3888 mJoystick.process(event); 3889 return FINISH_HANDLED; 3890 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 3891 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 3892 mTouchNavigation.process(event); 3893 return FINISH_HANDLED; 3894 } 3895 } 3896 return FORWARD; 3897 } 3898 3899 @Override 3900 protected void onDeliverToNext(QueuedInputEvent q) { 3901 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 3902 // Cancel related synthetic events if any prior stage has handled the event. 3903 if (q.mEvent instanceof MotionEvent) { 3904 final MotionEvent event = (MotionEvent)q.mEvent; 3905 final int source = event.getSource(); 3906 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3907 mTrackball.cancel(event); 3908 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 3909 mJoystick.cancel(event); 3910 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 3911 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 3912 mTouchNavigation.cancel(event); 3913 } 3914 } 3915 } 3916 super.onDeliverToNext(q); 3917 } 3918 } 3919 3920 /** 3921 * Creates dpad events from unhandled trackball movements. 3922 */ 3923 final class SyntheticTrackballHandler { 3924 private final TrackballAxis mX = new TrackballAxis(); 3925 private final TrackballAxis mY = new TrackballAxis(); 3926 private long mLastTime; 3927 3928 public void process(MotionEvent event) { 3929 // Translate the trackball event into DPAD keys and try to deliver those. 3930 long curTime = SystemClock.uptimeMillis(); 3931 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 3932 // It has been too long since the last movement, 3933 // so restart at the beginning. 3934 mX.reset(0); 3935 mY.reset(0); 3936 mLastTime = curTime; 3937 } 3938 3939 final int action = event.getAction(); 3940 final int metaState = event.getMetaState(); 3941 switch (action) { 3942 case MotionEvent.ACTION_DOWN: 3943 mX.reset(2); 3944 mY.reset(2); 3945 enqueueInputEvent(new KeyEvent(curTime, curTime, 3946 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3947 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3948 InputDevice.SOURCE_KEYBOARD)); 3949 break; 3950 case MotionEvent.ACTION_UP: 3951 mX.reset(2); 3952 mY.reset(2); 3953 enqueueInputEvent(new KeyEvent(curTime, curTime, 3954 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3955 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3956 InputDevice.SOURCE_KEYBOARD)); 3957 break; 3958 } 3959 3960 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 3961 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 3962 + " move=" + event.getX() 3963 + " / Y=" + mY.position + " step=" 3964 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 3965 + " move=" + event.getY()); 3966 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 3967 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 3968 3969 // Generate DPAD events based on the trackball movement. 3970 // We pick the axis that has moved the most as the direction of 3971 // the DPAD. When we generate DPAD events for one axis, then the 3972 // other axis is reset -- we don't want to perform DPAD jumps due 3973 // to slight movements in the trackball when making major movements 3974 // along the other axis. 3975 int keycode = 0; 3976 int movement = 0; 3977 float accel = 1; 3978 if (xOff > yOff) { 3979 movement = mX.generate(); 3980 if (movement != 0) { 3981 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3982 : KeyEvent.KEYCODE_DPAD_LEFT; 3983 accel = mX.acceleration; 3984 mY.reset(2); 3985 } 3986 } else if (yOff > 0) { 3987 movement = mY.generate(); 3988 if (movement != 0) { 3989 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3990 : KeyEvent.KEYCODE_DPAD_UP; 3991 accel = mY.acceleration; 3992 mX.reset(2); 3993 } 3994 } 3995 3996 if (keycode != 0) { 3997 if (movement < 0) movement = -movement; 3998 int accelMovement = (int)(movement * accel); 3999 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4000 + " accelMovement=" + accelMovement 4001 + " accel=" + accel); 4002 if (accelMovement > movement) { 4003 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4004 + keycode); 4005 movement--; 4006 int repeatCount = accelMovement - movement; 4007 enqueueInputEvent(new KeyEvent(curTime, curTime, 4008 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4009 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4010 InputDevice.SOURCE_KEYBOARD)); 4011 } 4012 while (movement > 0) { 4013 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4014 + keycode); 4015 movement--; 4016 curTime = SystemClock.uptimeMillis(); 4017 enqueueInputEvent(new KeyEvent(curTime, curTime, 4018 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4019 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4020 InputDevice.SOURCE_KEYBOARD)); 4021 enqueueInputEvent(new KeyEvent(curTime, curTime, 4022 KeyEvent.ACTION_UP, keycode, 0, metaState, 4023 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4024 InputDevice.SOURCE_KEYBOARD)); 4025 } 4026 mLastTime = curTime; 4027 } 4028 } 4029 4030 public void cancel(MotionEvent event) { 4031 mLastTime = Integer.MIN_VALUE; 4032 4033 // If we reach this, we consumed a trackball event. 4034 // Because we will not translate the trackball event into a key event, 4035 // touch mode will not exit, so we exit touch mode here. 4036 if (mView != null && mAdded) { 4037 ensureTouchMode(false); 4038 } 4039 } 4040 } 4041 4042 /** 4043 * Maintains state information for a single trackball axis, generating 4044 * discrete (DPAD) movements based on raw trackball motion. 4045 */ 4046 static final class TrackballAxis { 4047 /** 4048 * The maximum amount of acceleration we will apply. 4049 */ 4050 static final float MAX_ACCELERATION = 20; 4051 4052 /** 4053 * The maximum amount of time (in milliseconds) between events in order 4054 * for us to consider the user to be doing fast trackball movements, 4055 * and thus apply an acceleration. 4056 */ 4057 static final long FAST_MOVE_TIME = 150; 4058 4059 /** 4060 * Scaling factor to the time (in milliseconds) between events to how 4061 * much to multiple/divide the current acceleration. When movement 4062 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4063 * FAST_MOVE_TIME it divides it. 4064 */ 4065 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4066 4067 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4068 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4069 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4070 4071 float position; 4072 float acceleration = 1; 4073 long lastMoveTime = 0; 4074 int step; 4075 int dir; 4076 int nonAccelMovement; 4077 4078 void reset(int _step) { 4079 position = 0; 4080 acceleration = 1; 4081 lastMoveTime = 0; 4082 step = _step; 4083 dir = 0; 4084 } 4085 4086 /** 4087 * Add trackball movement into the state. If the direction of movement 4088 * has been reversed, the state is reset before adding the 4089 * movement (so that you don't have to compensate for any previously 4090 * collected movement before see the result of the movement in the 4091 * new direction). 4092 * 4093 * @return Returns the absolute value of the amount of movement 4094 * collected so far. 4095 */ 4096 float collect(float off, long time, String axis) { 4097 long normTime; 4098 if (off > 0) { 4099 normTime = (long)(off * FAST_MOVE_TIME); 4100 if (dir < 0) { 4101 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4102 position = 0; 4103 step = 0; 4104 acceleration = 1; 4105 lastMoveTime = 0; 4106 } 4107 dir = 1; 4108 } else if (off < 0) { 4109 normTime = (long)((-off) * FAST_MOVE_TIME); 4110 if (dir > 0) { 4111 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4112 position = 0; 4113 step = 0; 4114 acceleration = 1; 4115 lastMoveTime = 0; 4116 } 4117 dir = -1; 4118 } else { 4119 normTime = 0; 4120 } 4121 4122 // The number of milliseconds between each movement that is 4123 // considered "normal" and will not result in any acceleration 4124 // or deceleration, scaled by the offset we have here. 4125 if (normTime > 0) { 4126 long delta = time - lastMoveTime; 4127 lastMoveTime = time; 4128 float acc = acceleration; 4129 if (delta < normTime) { 4130 // The user is scrolling rapidly, so increase acceleration. 4131 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4132 if (scale > 1) acc *= scale; 4133 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4134 + off + " normTime=" + normTime + " delta=" + delta 4135 + " scale=" + scale + " acc=" + acc); 4136 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4137 } else { 4138 // The user is scrolling slowly, so decrease acceleration. 4139 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4140 if (scale > 1) acc /= scale; 4141 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4142 + off + " normTime=" + normTime + " delta=" + delta 4143 + " scale=" + scale + " acc=" + acc); 4144 acceleration = acc > 1 ? acc : 1; 4145 } 4146 } 4147 position += off; 4148 return Math.abs(position); 4149 } 4150 4151 /** 4152 * Generate the number of discrete movement events appropriate for 4153 * the currently collected trackball movement. 4154 * 4155 * @return Returns the number of discrete movements, either positive 4156 * or negative, or 0 if there is not enough trackball movement yet 4157 * for a discrete movement. 4158 */ 4159 int generate() { 4160 int movement = 0; 4161 nonAccelMovement = 0; 4162 do { 4163 final int dir = position >= 0 ? 1 : -1; 4164 switch (step) { 4165 // If we are going to execute the first step, then we want 4166 // to do this as soon as possible instead of waiting for 4167 // a full movement, in order to make things look responsive. 4168 case 0: 4169 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4170 return movement; 4171 } 4172 movement += dir; 4173 nonAccelMovement += dir; 4174 step = 1; 4175 break; 4176 // If we have generated the first movement, then we need 4177 // to wait for the second complete trackball motion before 4178 // generating the second discrete movement. 4179 case 1: 4180 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4181 return movement; 4182 } 4183 movement += dir; 4184 nonAccelMovement += dir; 4185 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4186 step = 2; 4187 break; 4188 // After the first two, we generate discrete movements 4189 // consistently with the trackball, applying an acceleration 4190 // if the trackball is moving quickly. This is a simple 4191 // acceleration on top of what we already compute based 4192 // on how quickly the wheel is being turned, to apply 4193 // a longer increasing acceleration to continuous movement 4194 // in one direction. 4195 default: 4196 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4197 return movement; 4198 } 4199 movement += dir; 4200 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4201 float acc = acceleration; 4202 acc *= 1.1f; 4203 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4204 break; 4205 } 4206 } while (true); 4207 } 4208 } 4209 4210 /** 4211 * Creates dpad events from unhandled joystick movements. 4212 */ 4213 final class SyntheticJoystickHandler extends Handler { 4214 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4215 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4216 4217 private int mLastXDirection; 4218 private int mLastYDirection; 4219 private int mLastXKeyCode; 4220 private int mLastYKeyCode; 4221 4222 public SyntheticJoystickHandler() { 4223 super(true); 4224 } 4225 4226 @Override 4227 public void handleMessage(Message msg) { 4228 switch (msg.what) { 4229 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4230 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4231 KeyEvent oldEvent = (KeyEvent)msg.obj; 4232 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4233 SystemClock.uptimeMillis(), 4234 oldEvent.getRepeatCount() + 1); 4235 if (mAttachInfo.mHasWindowFocus) { 4236 enqueueInputEvent(e); 4237 Message m = obtainMessage(msg.what, e); 4238 m.setAsynchronous(true); 4239 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4240 } 4241 } break; 4242 } 4243 } 4244 4245 public void process(MotionEvent event) { 4246 update(event, true); 4247 } 4248 4249 public void cancel(MotionEvent event) { 4250 update(event, false); 4251 } 4252 4253 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4254 final long time = event.getEventTime(); 4255 final int metaState = event.getMetaState(); 4256 final int deviceId = event.getDeviceId(); 4257 final int source = event.getSource(); 4258 4259 int xDirection = joystickAxisValueToDirection( 4260 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4261 if (xDirection == 0) { 4262 xDirection = joystickAxisValueToDirection(event.getX()); 4263 } 4264 4265 int yDirection = joystickAxisValueToDirection( 4266 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4267 if (yDirection == 0) { 4268 yDirection = joystickAxisValueToDirection(event.getY()); 4269 } 4270 4271 if (xDirection != mLastXDirection) { 4272 if (mLastXKeyCode != 0) { 4273 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4274 enqueueInputEvent(new KeyEvent(time, time, 4275 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4276 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4277 mLastXKeyCode = 0; 4278 } 4279 4280 mLastXDirection = xDirection; 4281 4282 if (xDirection != 0 && synthesizeNewKeys) { 4283 mLastXKeyCode = xDirection > 0 4284 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4285 final KeyEvent e = new KeyEvent(time, time, 4286 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4287 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4288 enqueueInputEvent(e); 4289 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4290 m.setAsynchronous(true); 4291 mHandler.sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4292 } 4293 } 4294 4295 if (yDirection != mLastYDirection) { 4296 if (mLastYKeyCode != 0) { 4297 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4298 enqueueInputEvent(new KeyEvent(time, time, 4299 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4300 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4301 mLastYKeyCode = 0; 4302 } 4303 4304 mLastYDirection = yDirection; 4305 4306 if (yDirection != 0 && synthesizeNewKeys) { 4307 mLastYKeyCode = yDirection > 0 4308 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4309 final KeyEvent e = new KeyEvent(time, time, 4310 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4311 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4312 enqueueInputEvent(e); 4313 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4314 m.setAsynchronous(true); 4315 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4316 } 4317 } 4318 } 4319 4320 private int joystickAxisValueToDirection(float value) { 4321 if (value >= 0.5f) { 4322 return 1; 4323 } else if (value <= -0.5f) { 4324 return -1; 4325 } else { 4326 return 0; 4327 } 4328 } 4329 } 4330 4331 /** 4332 * Creates dpad events from unhandled touch navigation movements. 4333 */ 4334 final class SyntheticTouchNavigationHandler extends Handler { 4335 private static final int MSG_FLICK = 1; 4336 4337 // Maximum difference in milliseconds between the down and up of a touch 4338 // event for it to be considered a tap 4339 // TODO:Read this value from a configuration file 4340 private static final int MAX_TAP_TIME = 250; 4341 4342 // Where the cutoff is for determining an edge swipe 4343 private static final float EDGE_SWIPE_THRESHOLD = 0.9f; 4344 4345 // TODO: Pass touch slop from the input device 4346 private static final int TOUCH_SLOP = 30; 4347 4348 // The position of the previous TouchNavigation event 4349 private float mLastTouchNavigationXPosition; 4350 private float mLastTouchNavigationYPosition; 4351 // Where the Touch Navigation was initially pressed 4352 private float mTouchNavigationEnterXPosition; 4353 private float mTouchNavigationEnterYPosition; 4354 // When the most recent ACTION_HOVER_ENTER occurred 4355 private long mLastTouchNavigationStartTimeMs = 0; 4356 // When the most recent direction key was sent 4357 private long mLastTouchNavigationKeySendTimeMs = 0; 4358 // When the most recent touch event of any type occurred 4359 private long mLastTouchNavigationEventTimeMs = 0; 4360 // Did the swipe begin in a valid region 4361 private boolean mEdgeSwipePossible; 4362 4363 // How quickly keys were sent 4364 private int mKeySendRateMs = 0; 4365 private int mLastKeySent; 4366 // Last movement in device screen pixels 4367 private float mLastMoveX = 0; 4368 private float mLastMoveY = 0; 4369 // Offset from the initial touch. Gets reset as direction keys are sent. 4370 private float mAccumulatedX; 4371 private float mAccumulatedY; 4372 4373 // Change in position allowed during tap events 4374 private float mTouchSlop; 4375 private float mTouchSlopSquared; 4376 // Has the TouchSlop constraint been invalidated 4377 private boolean mAlwaysInTapRegion = true; 4378 4379 // Information from the most recent event. 4380 // Used to determine what device sent the event during a fling. 4381 private int mLastSource; 4382 private int mLastMetaState; 4383 private int mLastDeviceId; 4384 4385 // TODO: Currently using screen dimensions tuned to a Galaxy Nexus, need to 4386 // read this from a config file instead 4387 private int mDistancePerTick; 4388 private int mDistancePerTickSquared; 4389 // Highest rate that the flinged events can occur at before dying out 4390 private int mMaxRepeatDelay; 4391 // The square of the minimum distance needed for a flick to register 4392 private int mMinFlickDistanceSquared; 4393 // How quickly the repeated events die off 4394 private float mFlickDecay; 4395 4396 public SyntheticTouchNavigationHandler() { 4397 super(true); 4398 mDistancePerTick = SystemProperties.getInt("persist.vr_dist_tick", 64); 4399 mDistancePerTickSquared = mDistancePerTick * mDistancePerTick; 4400 mMaxRepeatDelay = SystemProperties.getInt("persist.vr_repeat_delay", 300); 4401 mMinFlickDistanceSquared = SystemProperties.getInt("persist.vr_min_flick", 20); 4402 mMinFlickDistanceSquared *= mMinFlickDistanceSquared; 4403 mFlickDecay = Float.parseFloat(SystemProperties.get( 4404 "persist.sys.vr_flick_decay", "1.3")); 4405 mTouchSlop = TOUCH_SLOP; 4406 mTouchSlopSquared = mTouchSlop * mTouchSlop; 4407 } 4408 4409 @Override 4410 public void handleMessage(Message msg) { 4411 switch (msg.what) { 4412 case MSG_FLICK: { 4413 final long time = SystemClock.uptimeMillis(); 4414 final int keyCode = msg.arg2; 4415 4416 // Send the key 4417 enqueueInputEvent(new KeyEvent(time, time, 4418 KeyEvent.ACTION_DOWN, keyCode, 0, mLastMetaState, 4419 mLastDeviceId, 0, KeyEvent.FLAG_FALLBACK, mLastSource)); 4420 enqueueInputEvent(new KeyEvent(time, time, 4421 KeyEvent.ACTION_UP, keyCode, 0, mLastMetaState, 4422 mLastDeviceId, 0, KeyEvent.FLAG_FALLBACK, mLastSource)); 4423 4424 // Increase the delay by the decay factor and resend 4425 final int delay = (int) Math.ceil(mFlickDecay * msg.arg1); 4426 if (delay <= mMaxRepeatDelay) { 4427 Message next = obtainMessage(MSG_FLICK, delay, keyCode); 4428 next.setAsynchronous(true); 4429 sendMessageDelayed(next, delay); 4430 } 4431 break; 4432 } 4433 } 4434 } 4435 4436 public void process(MotionEvent event) { 4437 update(event, true); 4438 } 4439 4440 public void cancel(MotionEvent event) { 4441 update(event, false); 4442 } 4443 4444 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4445 if (!synthesizeNewKeys) { 4446 removeMessages(MSG_FLICK); 4447 } 4448 4449 InputDevice device = event.getDevice(); 4450 if (device == null) { 4451 return; 4452 } 4453 4454 // Store what time the TouchNavigation event occurred 4455 final long time = SystemClock.uptimeMillis(); 4456 switch (event.getAction()) { 4457 case MotionEvent.ACTION_DOWN: { 4458 mLastTouchNavigationStartTimeMs = time; 4459 mAlwaysInTapRegion = true; 4460 mTouchNavigationEnterXPosition = event.getX(); 4461 mTouchNavigationEnterYPosition = event.getY(); 4462 mAccumulatedX = 0; 4463 mAccumulatedY = 0; 4464 mLastMoveX = 0; 4465 mLastMoveY = 0; 4466 if (device.getMotionRange(MotionEvent.AXIS_Y).getMax() 4467 * EDGE_SWIPE_THRESHOLD < event.getY()) { 4468 // Did the swipe begin in a valid region 4469 mEdgeSwipePossible = true; 4470 } 4471 // Clear any flings 4472 if (synthesizeNewKeys) { 4473 removeMessages(MSG_FLICK); 4474 } 4475 break; 4476 } 4477 4478 case MotionEvent.ACTION_MOVE: { 4479 // Determine whether the move is slop or an intentional move 4480 float deltaX = event.getX() - mTouchNavigationEnterXPosition; 4481 float deltaY = event.getY() - mTouchNavigationEnterYPosition; 4482 if (mTouchSlopSquared < deltaX * deltaX + deltaY * deltaY) { 4483 mAlwaysInTapRegion = false; 4484 } 4485 4486 // Checks if the swipe has crossed the midpoint 4487 // and if our swipe gesture is complete 4488 if (event.getY() < (device.getMotionRange(MotionEvent.AXIS_Y).getMax() 4489 * .5) && mEdgeSwipePossible) { 4490 mEdgeSwipePossible = false; 4491 4492 Intent intent = 4493 ((SearchManager)mContext.getSystemService(Context.SEARCH_SERVICE)) 4494 .getAssistIntent(mContext, false, UserHandle.USER_CURRENT_OR_SELF); 4495 if (intent != null) { 4496 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 4497 try { 4498 mContext.startActivity(intent); 4499 } catch (ActivityNotFoundException e){ 4500 Log.e(TAG, "Could not start search activity"); 4501 } 4502 } else { 4503 Log.e(TAG, "Could not find a search activity"); 4504 } 4505 } 4506 4507 // Find the difference in position between the two most recent 4508 // TouchNavigation events 4509 mLastMoveX = event.getX() - mLastTouchNavigationXPosition; 4510 mLastMoveY = event.getY() - mLastTouchNavigationYPosition; 4511 mAccumulatedX += mLastMoveX; 4512 mAccumulatedY += mLastMoveY; 4513 float accumulatedXSquared = mAccumulatedX * mAccumulatedX; 4514 float accumulatedYSquared = mAccumulatedY * mAccumulatedY; 4515 4516 // Determine if we've moved far enough to send a key press 4517 if (accumulatedXSquared > mDistancePerTickSquared 4518 || accumulatedYSquared > mDistancePerTickSquared) { 4519 float dominantAxis; 4520 float sign; 4521 boolean isXAxis; 4522 int key; 4523 int repeatCount = 0; 4524 // Determine dominant axis 4525 if (accumulatedXSquared > accumulatedYSquared) { 4526 dominantAxis = mAccumulatedX; 4527 isXAxis = true; 4528 } else { 4529 dominantAxis = mAccumulatedY; 4530 isXAxis = false; 4531 } 4532 // Determine sign of axis 4533 sign = (dominantAxis > 0) ? 1 : -1; 4534 // Determine key to send 4535 if (isXAxis) { 4536 key = (sign == 1) ? KeyEvent.KEYCODE_DPAD_RIGHT : 4537 KeyEvent.KEYCODE_DPAD_LEFT; 4538 } else { 4539 key = (sign == 1) ? KeyEvent.KEYCODE_DPAD_DOWN : 4540 KeyEvent.KEYCODE_DPAD_UP; 4541 } 4542 // Send key until maximum distance constraint is satisfied 4543 while (dominantAxis * dominantAxis > mDistancePerTickSquared) { 4544 repeatCount++; 4545 dominantAxis -= sign * mDistancePerTick; 4546 if (synthesizeNewKeys) { 4547 enqueueInputEvent(new KeyEvent(time, time, 4548 KeyEvent.ACTION_DOWN, key, 0, event.getMetaState(), 4549 event.getDeviceId(), 0, KeyEvent.FLAG_FALLBACK, 4550 event.getSource())); 4551 enqueueInputEvent(new KeyEvent(time, time, 4552 KeyEvent.ACTION_UP, key, 0, event.getMetaState(), 4553 event.getDeviceId(), 0, KeyEvent.FLAG_FALLBACK, 4554 event.getSource())); 4555 } 4556 } 4557 // Save new axis values 4558 mAccumulatedX = isXAxis ? dominantAxis : 0; 4559 mAccumulatedY = isXAxis ? 0 : dominantAxis; 4560 4561 mLastKeySent = key; 4562 mKeySendRateMs = (int) (time - mLastTouchNavigationKeySendTimeMs) / 4563 repeatCount; 4564 mLastTouchNavigationKeySendTimeMs = time; 4565 } 4566 break; 4567 } 4568 4569 case MotionEvent.ACTION_UP: { 4570 if (time - mLastTouchNavigationStartTimeMs < MAX_TAP_TIME 4571 && mAlwaysInTapRegion) { 4572 if (synthesizeNewKeys) { 4573 enqueueInputEvent(new KeyEvent(mLastTouchNavigationStartTimeMs, 4574 time, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, 4575 event.getMetaState(), event.getDeviceId(), 0, 4576 KeyEvent.FLAG_FALLBACK, event.getSource())); 4577 enqueueInputEvent(new KeyEvent(mLastTouchNavigationStartTimeMs, 4578 time, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, 4579 event.getMetaState(), event.getDeviceId(), 0, 4580 KeyEvent.FLAG_FALLBACK, event.getSource())); 4581 } 4582 } else { 4583 float xMoveSquared = mLastMoveX * mLastMoveX; 4584 float yMoveSquared = mLastMoveY * mLastMoveY; 4585 // Determine whether the last gesture was a fling. 4586 if (mMinFlickDistanceSquared <= xMoveSquared + yMoveSquared 4587 && time - mLastTouchNavigationEventTimeMs <= MAX_TAP_TIME 4588 && mKeySendRateMs <= mMaxRepeatDelay 4589 && mKeySendRateMs > 0) { 4590 mLastDeviceId = event.getDeviceId(); 4591 mLastSource = event.getSource(); 4592 mLastMetaState = event.getMetaState(); 4593 4594 if (synthesizeNewKeys) { 4595 Message message = obtainMessage( 4596 MSG_FLICK, mKeySendRateMs, mLastKeySent); 4597 message.setAsynchronous(true); 4598 sendMessageDelayed(message, mKeySendRateMs); 4599 } 4600 } 4601 } 4602 mEdgeSwipePossible = false; 4603 break; 4604 } 4605 } 4606 4607 // Store touch event position and time 4608 mLastTouchNavigationEventTimeMs = time; 4609 mLastTouchNavigationXPosition = event.getX(); 4610 mLastTouchNavigationYPosition = event.getY(); 4611 } 4612 } 4613 4614 /** 4615 * Returns true if the key is used for keyboard navigation. 4616 * @param keyEvent The key event. 4617 * @return True if the key is used for keyboard navigation. 4618 */ 4619 private static boolean isNavigationKey(KeyEvent keyEvent) { 4620 switch (keyEvent.getKeyCode()) { 4621 case KeyEvent.KEYCODE_DPAD_LEFT: 4622 case KeyEvent.KEYCODE_DPAD_RIGHT: 4623 case KeyEvent.KEYCODE_DPAD_UP: 4624 case KeyEvent.KEYCODE_DPAD_DOWN: 4625 case KeyEvent.KEYCODE_DPAD_CENTER: 4626 case KeyEvent.KEYCODE_PAGE_UP: 4627 case KeyEvent.KEYCODE_PAGE_DOWN: 4628 case KeyEvent.KEYCODE_MOVE_HOME: 4629 case KeyEvent.KEYCODE_MOVE_END: 4630 case KeyEvent.KEYCODE_TAB: 4631 case KeyEvent.KEYCODE_SPACE: 4632 case KeyEvent.KEYCODE_ENTER: 4633 return true; 4634 } 4635 return false; 4636 } 4637 4638 /** 4639 * Returns true if the key is used for typing. 4640 * @param keyEvent The key event. 4641 * @return True if the key is used for typing. 4642 */ 4643 private static boolean isTypingKey(KeyEvent keyEvent) { 4644 return keyEvent.getUnicodeChar() > 0; 4645 } 4646 4647 /** 4648 * See if the key event means we should leave touch mode (and leave touch mode if so). 4649 * @param event The key event. 4650 * @return Whether this key event should be consumed (meaning the act of 4651 * leaving touch mode alone is considered the event). 4652 */ 4653 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 4654 // Only relevant in touch mode. 4655 if (!mAttachInfo.mInTouchMode) { 4656 return false; 4657 } 4658 4659 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 4660 final int action = event.getAction(); 4661 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 4662 return false; 4663 } 4664 4665 // Don't leave touch mode if the IME told us not to. 4666 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 4667 return false; 4668 } 4669 4670 // If the key can be used for keyboard navigation then leave touch mode 4671 // and select a focused view if needed (in ensureTouchMode). 4672 // When a new focused view is selected, we consume the navigation key because 4673 // navigation doesn't make much sense unless a view already has focus so 4674 // the key's purpose is to set focus. 4675 if (isNavigationKey(event)) { 4676 return ensureTouchMode(false); 4677 } 4678 4679 // If the key can be used for typing then leave touch mode 4680 // and select a focused view if needed (in ensureTouchMode). 4681 // Always allow the view to process the typing key. 4682 if (isTypingKey(event)) { 4683 ensureTouchMode(false); 4684 return false; 4685 } 4686 4687 return false; 4688 } 4689 4690 /* drag/drop */ 4691 void setLocalDragState(Object obj) { 4692 mLocalDragState = obj; 4693 } 4694 4695 private void handleDragEvent(DragEvent event) { 4696 // From the root, only drag start/end/location are dispatched. entered/exited 4697 // are determined and dispatched by the viewgroup hierarchy, who then report 4698 // that back here for ultimate reporting back to the framework. 4699 if (mView != null && mAdded) { 4700 final int what = event.mAction; 4701 4702 if (what == DragEvent.ACTION_DRAG_EXITED) { 4703 // A direct EXITED event means that the window manager knows we've just crossed 4704 // a window boundary, so the current drag target within this one must have 4705 // just been exited. Send it the usual notifications and then we're done 4706 // for now. 4707 mView.dispatchDragEvent(event); 4708 } else { 4709 // Cache the drag description when the operation starts, then fill it in 4710 // on subsequent calls as a convenience 4711 if (what == DragEvent.ACTION_DRAG_STARTED) { 4712 mCurrentDragView = null; // Start the current-recipient tracking 4713 mDragDescription = event.mClipDescription; 4714 } else { 4715 event.mClipDescription = mDragDescription; 4716 } 4717 4718 // For events with a [screen] location, translate into window coordinates 4719 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 4720 mDragPoint.set(event.mX, event.mY); 4721 if (mTranslator != null) { 4722 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 4723 } 4724 4725 if (mCurScrollY != 0) { 4726 mDragPoint.offset(0, mCurScrollY); 4727 } 4728 4729 event.mX = mDragPoint.x; 4730 event.mY = mDragPoint.y; 4731 } 4732 4733 // Remember who the current drag target is pre-dispatch 4734 final View prevDragView = mCurrentDragView; 4735 4736 // Now dispatch the drag/drop event 4737 boolean result = mView.dispatchDragEvent(event); 4738 4739 // If we changed apparent drag target, tell the OS about it 4740 if (prevDragView != mCurrentDragView) { 4741 try { 4742 if (prevDragView != null) { 4743 mWindowSession.dragRecipientExited(mWindow); 4744 } 4745 if (mCurrentDragView != null) { 4746 mWindowSession.dragRecipientEntered(mWindow); 4747 } 4748 } catch (RemoteException e) { 4749 Slog.e(TAG, "Unable to note drag target change"); 4750 } 4751 } 4752 4753 // Report the drop result when we're done 4754 if (what == DragEvent.ACTION_DROP) { 4755 mDragDescription = null; 4756 try { 4757 Log.i(TAG, "Reporting drop result: " + result); 4758 mWindowSession.reportDropResult(mWindow, result); 4759 } catch (RemoteException e) { 4760 Log.e(TAG, "Unable to report drop result"); 4761 } 4762 } 4763 4764 // When the drag operation ends, release any local state object 4765 // that may have been in use 4766 if (what == DragEvent.ACTION_DRAG_ENDED) { 4767 setLocalDragState(null); 4768 } 4769 } 4770 } 4771 event.recycle(); 4772 } 4773 4774 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4775 if (mSeq != args.seq) { 4776 // The sequence has changed, so we need to update our value and make 4777 // sure to do a traversal afterward so the window manager is given our 4778 // most recent data. 4779 mSeq = args.seq; 4780 mAttachInfo.mForceReportNewAttributes = true; 4781 scheduleTraversals(); 4782 } 4783 if (mView == null) return; 4784 if (args.localChanges != 0) { 4785 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4786 } 4787 if (mAttachInfo != null) { 4788 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4789 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4790 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4791 mView.dispatchSystemUiVisibilityChanged(visibility); 4792 } 4793 } 4794 } 4795 4796 public void handleDispatchDoneAnimating() { 4797 if (mWindowsAnimating) { 4798 mWindowsAnimating = false; 4799 if (!mDirty.isEmpty() || mIsAnimating) { 4800 scheduleTraversals(); 4801 } 4802 } 4803 } 4804 4805 public void getLastTouchPoint(Point outLocation) { 4806 outLocation.x = (int) mLastTouchPoint.x; 4807 outLocation.y = (int) mLastTouchPoint.y; 4808 } 4809 4810 public void setDragFocus(View newDragTarget) { 4811 if (mCurrentDragView != newDragTarget) { 4812 mCurrentDragView = newDragTarget; 4813 } 4814 } 4815 4816 private AudioManager getAudioManager() { 4817 if (mView == null) { 4818 throw new IllegalStateException("getAudioManager called when there is no mView"); 4819 } 4820 if (mAudioManager == null) { 4821 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4822 } 4823 return mAudioManager; 4824 } 4825 4826 public AccessibilityInteractionController getAccessibilityInteractionController() { 4827 if (mView == null) { 4828 throw new IllegalStateException("getAccessibilityInteractionController" 4829 + " called when there is no mView"); 4830 } 4831 if (mAccessibilityInteractionController == null) { 4832 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4833 } 4834 return mAccessibilityInteractionController; 4835 } 4836 4837 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4838 boolean insetsPending) throws RemoteException { 4839 4840 float appScale = mAttachInfo.mApplicationScale; 4841 boolean restore = false; 4842 if (params != null && mTranslator != null) { 4843 restore = true; 4844 params.backup(); 4845 mTranslator.translateWindowLayout(params); 4846 } 4847 if (params != null) { 4848 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4849 } 4850 mPendingConfiguration.seq = 0; 4851 //Log.d(TAG, ">>>>>> CALLING relayout"); 4852 if (params != null && mOrigWindowType != params.type) { 4853 // For compatibility with old apps, don't crash here. 4854 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4855 Slog.w(TAG, "Window type can not be changed after " 4856 + "the window is added; ignoring change of " + mView); 4857 params.type = mOrigWindowType; 4858 } 4859 } 4860 int relayoutResult = mWindowSession.relayout( 4861 mWindow, mSeq, params, 4862 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4863 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4864 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4865 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4866 mPendingConfiguration, mSurface); 4867 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4868 if (restore) { 4869 params.restore(); 4870 } 4871 4872 if (mTranslator != null) { 4873 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4874 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4875 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4876 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4877 } 4878 return relayoutResult; 4879 } 4880 4881 /** 4882 * {@inheritDoc} 4883 */ 4884 public void playSoundEffect(int effectId) { 4885 checkThread(); 4886 4887 try { 4888 final AudioManager audioManager = getAudioManager(); 4889 4890 switch (effectId) { 4891 case SoundEffectConstants.CLICK: 4892 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4893 return; 4894 case SoundEffectConstants.NAVIGATION_DOWN: 4895 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4896 return; 4897 case SoundEffectConstants.NAVIGATION_LEFT: 4898 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4899 return; 4900 case SoundEffectConstants.NAVIGATION_RIGHT: 4901 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4902 return; 4903 case SoundEffectConstants.NAVIGATION_UP: 4904 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4905 return; 4906 default: 4907 throw new IllegalArgumentException("unknown effect id " + effectId + 4908 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4909 } 4910 } catch (IllegalStateException e) { 4911 // Exception thrown by getAudioManager() when mView is null 4912 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4913 e.printStackTrace(); 4914 } 4915 } 4916 4917 /** 4918 * {@inheritDoc} 4919 */ 4920 public boolean performHapticFeedback(int effectId, boolean always) { 4921 try { 4922 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4923 } catch (RemoteException e) { 4924 return false; 4925 } 4926 } 4927 4928 /** 4929 * {@inheritDoc} 4930 */ 4931 public View focusSearch(View focused, int direction) { 4932 checkThread(); 4933 if (!(mView instanceof ViewGroup)) { 4934 return null; 4935 } 4936 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4937 } 4938 4939 public void debug() { 4940 mView.debug(); 4941 } 4942 4943 public void dumpGfxInfo(int[] info) { 4944 info[0] = info[1] = 0; 4945 if (mView != null) { 4946 getGfxInfo(mView, info); 4947 } 4948 } 4949 4950 private static void getGfxInfo(View view, int[] info) { 4951 DisplayList displayList = view.mDisplayList; 4952 info[0]++; 4953 if (displayList != null) { 4954 info[1] += displayList.getSize(); 4955 } 4956 4957 if (view instanceof ViewGroup) { 4958 ViewGroup group = (ViewGroup) view; 4959 4960 int count = group.getChildCount(); 4961 for (int i = 0; i < count; i++) { 4962 getGfxInfo(group.getChildAt(i), info); 4963 } 4964 } 4965 } 4966 4967 public void die(boolean immediate) { 4968 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4969 // done by dispatchDetachedFromWindow will cause havoc on return. 4970 if (immediate && !mIsInTraversal) { 4971 doDie(); 4972 } else { 4973 if (!mIsDrawing) { 4974 destroyHardwareRenderer(); 4975 } else { 4976 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4977 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4978 } 4979 mHandler.sendEmptyMessage(MSG_DIE); 4980 } 4981 } 4982 4983 void doDie() { 4984 checkThread(); 4985 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4986 synchronized (this) { 4987 if (mAdded) { 4988 dispatchDetachedFromWindow(); 4989 } 4990 4991 if (mAdded && !mFirst) { 4992 invalidateDisplayLists(); 4993 destroyHardwareRenderer(); 4994 4995 if (mView != null) { 4996 int viewVisibility = mView.getVisibility(); 4997 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4998 if (mWindowAttributesChanged || viewVisibilityChanged) { 4999 // If layout params have been changed, first give them 5000 // to the window manager to make sure it has the correct 5001 // animation info. 5002 try { 5003 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5004 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5005 mWindowSession.finishDrawing(mWindow); 5006 } 5007 } catch (RemoteException e) { 5008 } 5009 } 5010 5011 mSurface.release(); 5012 } 5013 } 5014 5015 mAdded = false; 5016 } 5017 } 5018 5019 public void requestUpdateConfiguration(Configuration config) { 5020 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5021 mHandler.sendMessage(msg); 5022 } 5023 5024 public void loadSystemProperties() { 5025 mHandler.post(new Runnable() { 5026 @Override 5027 public void run() { 5028 // Profiling 5029 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5030 profileRendering(mAttachInfo.mHasWindowFocus); 5031 5032 // Hardware rendering 5033 if (mAttachInfo.mHardwareRenderer != null) { 5034 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 5035 invalidate(); 5036 } 5037 } 5038 5039 // Layout debugging 5040 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5041 if (layout != mAttachInfo.mDebugLayout) { 5042 mAttachInfo.mDebugLayout = layout; 5043 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5044 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5045 } 5046 } 5047 } 5048 }); 5049 } 5050 5051 private void destroyHardwareRenderer() { 5052 AttachInfo attachInfo = mAttachInfo; 5053 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 5054 5055 if (hardwareRenderer != null) { 5056 if (mView != null) { 5057 hardwareRenderer.destroyHardwareResources(mView); 5058 } 5059 hardwareRenderer.destroy(true); 5060 hardwareRenderer.setRequested(false); 5061 5062 attachInfo.mHardwareRenderer = null; 5063 attachInfo.mHardwareAccelerated = false; 5064 } 5065 } 5066 5067 public void dispatchFinishInputConnection(InputConnection connection) { 5068 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5069 mHandler.sendMessage(msg); 5070 } 5071 5072 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5073 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5074 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5075 + " contentInsets=" + contentInsets.toShortString() 5076 + " visibleInsets=" + visibleInsets.toShortString() 5077 + " reportDraw=" + reportDraw); 5078 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5079 if (mTranslator != null) { 5080 mTranslator.translateRectInScreenToAppWindow(frame); 5081 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5082 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5083 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5084 } 5085 SomeArgs args = SomeArgs.obtain(); 5086 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5087 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5088 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5089 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5090 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5091 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5092 msg.obj = args; 5093 mHandler.sendMessage(msg); 5094 } 5095 5096 public void dispatchMoved(int newX, int newY) { 5097 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5098 if (mTranslator != null) { 5099 PointF point = new PointF(newX, newY); 5100 mTranslator.translatePointInScreenToAppWindow(point); 5101 newX = (int) (point.x + 0.5); 5102 newY = (int) (point.y + 0.5); 5103 } 5104 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5105 mHandler.sendMessage(msg); 5106 } 5107 5108 /** 5109 * Represents a pending input event that is waiting in a queue. 5110 * 5111 * Input events are processed in serial order by the timestamp specified by 5112 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5113 * one input event to the application at a time and waits for the application 5114 * to finish handling it before delivering the next one. 5115 * 5116 * However, because the application or IME can synthesize and inject multiple 5117 * key events at a time without going through the input dispatcher, we end up 5118 * needing a queue on the application's side. 5119 */ 5120 private static final class QueuedInputEvent { 5121 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5122 public static final int FLAG_DEFERRED = 1 << 1; 5123 public static final int FLAG_FINISHED = 1 << 2; 5124 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5125 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5126 5127 public QueuedInputEvent mNext; 5128 5129 public InputEvent mEvent; 5130 public InputEventReceiver mReceiver; 5131 public int mFlags; 5132 5133 public boolean shouldSkipIme() { 5134 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5135 return true; 5136 } 5137 return mEvent instanceof MotionEvent 5138 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5139 } 5140 } 5141 5142 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5143 InputEventReceiver receiver, int flags) { 5144 QueuedInputEvent q = mQueuedInputEventPool; 5145 if (q != null) { 5146 mQueuedInputEventPoolSize -= 1; 5147 mQueuedInputEventPool = q.mNext; 5148 q.mNext = null; 5149 } else { 5150 q = new QueuedInputEvent(); 5151 } 5152 5153 q.mEvent = event; 5154 q.mReceiver = receiver; 5155 q.mFlags = flags; 5156 return q; 5157 } 5158 5159 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5160 q.mEvent = null; 5161 q.mReceiver = null; 5162 5163 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5164 mQueuedInputEventPoolSize += 1; 5165 q.mNext = mQueuedInputEventPool; 5166 mQueuedInputEventPool = q; 5167 } 5168 } 5169 5170 void enqueueInputEvent(InputEvent event) { 5171 enqueueInputEvent(event, null, 0, false); 5172 } 5173 5174 void enqueueInputEvent(InputEvent event, 5175 InputEventReceiver receiver, int flags, boolean processImmediately) { 5176 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5177 5178 // Always enqueue the input event in order, regardless of its time stamp. 5179 // We do this because the application or the IME may inject key events 5180 // in response to touch events and we want to ensure that the injected keys 5181 // are processed in the order they were received and we cannot trust that 5182 // the time stamp of injected events are monotonic. 5183 QueuedInputEvent last = mPendingInputEventTail; 5184 if (last == null) { 5185 mPendingInputEventHead = q; 5186 mPendingInputEventTail = q; 5187 } else { 5188 last.mNext = q; 5189 mPendingInputEventTail = q; 5190 } 5191 mPendingInputEventCount += 1; 5192 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5193 mPendingInputEventCount); 5194 5195 if (processImmediately) { 5196 doProcessInputEvents(); 5197 } else { 5198 scheduleProcessInputEvents(); 5199 } 5200 } 5201 5202 private void scheduleProcessInputEvents() { 5203 if (!mProcessInputEventsScheduled) { 5204 mProcessInputEventsScheduled = true; 5205 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5206 msg.setAsynchronous(true); 5207 mHandler.sendMessage(msg); 5208 } 5209 } 5210 5211 void doProcessInputEvents() { 5212 // Deliver all pending input events in the queue. 5213 while (mPendingInputEventHead != null) { 5214 QueuedInputEvent q = mPendingInputEventHead; 5215 mPendingInputEventHead = q.mNext; 5216 if (mPendingInputEventHead == null) { 5217 mPendingInputEventTail = null; 5218 } 5219 q.mNext = null; 5220 5221 mPendingInputEventCount -= 1; 5222 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5223 mPendingInputEventCount); 5224 5225 deliverInputEvent(q); 5226 } 5227 5228 // We are done processing all input events that we can process right now 5229 // so we can clear the pending flag immediately. 5230 if (mProcessInputEventsScheduled) { 5231 mProcessInputEventsScheduled = false; 5232 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5233 } 5234 } 5235 5236 private void deliverInputEvent(QueuedInputEvent q) { 5237 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 5238 try { 5239 if (mInputEventConsistencyVerifier != null) { 5240 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5241 } 5242 5243 InputStage stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5244 if (stage != null) { 5245 stage.deliver(q); 5246 } else { 5247 finishInputEvent(q); 5248 } 5249 } finally { 5250 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 5251 } 5252 } 5253 5254 private void finishInputEvent(QueuedInputEvent q) { 5255 if (q.mReceiver != null) { 5256 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5257 q.mReceiver.finishInputEvent(q.mEvent, handled); 5258 } else { 5259 q.mEvent.recycleIfNeededAfterDispatch(); 5260 } 5261 5262 recycleQueuedInputEvent(q); 5263 } 5264 5265 static boolean isTerminalInputEvent(InputEvent event) { 5266 if (event instanceof KeyEvent) { 5267 final KeyEvent keyEvent = (KeyEvent)event; 5268 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5269 } else { 5270 final MotionEvent motionEvent = (MotionEvent)event; 5271 final int action = motionEvent.getAction(); 5272 return action == MotionEvent.ACTION_UP 5273 || action == MotionEvent.ACTION_CANCEL 5274 || action == MotionEvent.ACTION_HOVER_EXIT; 5275 } 5276 } 5277 5278 void scheduleConsumeBatchedInput() { 5279 if (!mConsumeBatchedInputScheduled) { 5280 mConsumeBatchedInputScheduled = true; 5281 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5282 mConsumedBatchedInputRunnable, null); 5283 } 5284 } 5285 5286 void unscheduleConsumeBatchedInput() { 5287 if (mConsumeBatchedInputScheduled) { 5288 mConsumeBatchedInputScheduled = false; 5289 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5290 mConsumedBatchedInputRunnable, null); 5291 } 5292 } 5293 5294 void doConsumeBatchedInput(long frameTimeNanos) { 5295 if (mConsumeBatchedInputScheduled) { 5296 mConsumeBatchedInputScheduled = false; 5297 if (mInputEventReceiver != null) { 5298 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 5299 } 5300 doProcessInputEvents(); 5301 } 5302 } 5303 5304 final class TraversalRunnable implements Runnable { 5305 @Override 5306 public void run() { 5307 doTraversal(); 5308 } 5309 } 5310 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5311 5312 final class WindowInputEventReceiver extends InputEventReceiver { 5313 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5314 super(inputChannel, looper); 5315 } 5316 5317 @Override 5318 public void onInputEvent(InputEvent event) { 5319 enqueueInputEvent(event, this, 0, true); 5320 } 5321 5322 @Override 5323 public void onBatchedInputEventPending() { 5324 scheduleConsumeBatchedInput(); 5325 } 5326 5327 @Override 5328 public void dispose() { 5329 unscheduleConsumeBatchedInput(); 5330 super.dispose(); 5331 } 5332 } 5333 WindowInputEventReceiver mInputEventReceiver; 5334 5335 final class ConsumeBatchedInputRunnable implements Runnable { 5336 @Override 5337 public void run() { 5338 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5339 } 5340 } 5341 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5342 new ConsumeBatchedInputRunnable(); 5343 boolean mConsumeBatchedInputScheduled; 5344 5345 final class InvalidateOnAnimationRunnable implements Runnable { 5346 private boolean mPosted; 5347 private ArrayList<View> mViews = new ArrayList<View>(); 5348 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5349 new ArrayList<AttachInfo.InvalidateInfo>(); 5350 private View[] mTempViews; 5351 private AttachInfo.InvalidateInfo[] mTempViewRects; 5352 5353 public void addView(View view) { 5354 synchronized (this) { 5355 mViews.add(view); 5356 postIfNeededLocked(); 5357 } 5358 } 5359 5360 public void addViewRect(AttachInfo.InvalidateInfo info) { 5361 synchronized (this) { 5362 mViewRects.add(info); 5363 postIfNeededLocked(); 5364 } 5365 } 5366 5367 public void removeView(View view) { 5368 synchronized (this) { 5369 mViews.remove(view); 5370 5371 for (int i = mViewRects.size(); i-- > 0; ) { 5372 AttachInfo.InvalidateInfo info = mViewRects.get(i); 5373 if (info.target == view) { 5374 mViewRects.remove(i); 5375 info.recycle(); 5376 } 5377 } 5378 5379 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 5380 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 5381 mPosted = false; 5382 } 5383 } 5384 } 5385 5386 @Override 5387 public void run() { 5388 final int viewCount; 5389 final int viewRectCount; 5390 synchronized (this) { 5391 mPosted = false; 5392 5393 viewCount = mViews.size(); 5394 if (viewCount != 0) { 5395 mTempViews = mViews.toArray(mTempViews != null 5396 ? mTempViews : new View[viewCount]); 5397 mViews.clear(); 5398 } 5399 5400 viewRectCount = mViewRects.size(); 5401 if (viewRectCount != 0) { 5402 mTempViewRects = mViewRects.toArray(mTempViewRects != null 5403 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 5404 mViewRects.clear(); 5405 } 5406 } 5407 5408 for (int i = 0; i < viewCount; i++) { 5409 mTempViews[i].invalidate(); 5410 mTempViews[i] = null; 5411 } 5412 5413 for (int i = 0; i < viewRectCount; i++) { 5414 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 5415 info.target.invalidate(info.left, info.top, info.right, info.bottom); 5416 info.recycle(); 5417 } 5418 } 5419 5420 private void postIfNeededLocked() { 5421 if (!mPosted) { 5422 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 5423 mPosted = true; 5424 } 5425 } 5426 } 5427 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 5428 new InvalidateOnAnimationRunnable(); 5429 5430 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 5431 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 5432 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5433 } 5434 5435 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 5436 long delayMilliseconds) { 5437 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 5438 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5439 } 5440 5441 public void dispatchInvalidateOnAnimation(View view) { 5442 mInvalidateOnAnimationRunnable.addView(view); 5443 } 5444 5445 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 5446 mInvalidateOnAnimationRunnable.addViewRect(info); 5447 } 5448 5449 public void enqueueDisplayList(DisplayList displayList) { 5450 mDisplayLists.add(displayList); 5451 } 5452 5453 public void cancelInvalidate(View view) { 5454 mHandler.removeMessages(MSG_INVALIDATE, view); 5455 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 5456 // them to the pool 5457 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 5458 mInvalidateOnAnimationRunnable.removeView(view); 5459 } 5460 5461 public void dispatchKey(KeyEvent event) { 5462 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 5463 msg.setAsynchronous(true); 5464 mHandler.sendMessage(msg); 5465 } 5466 5467 public void dispatchKeyFromIme(KeyEvent event) { 5468 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 5469 msg.setAsynchronous(true); 5470 mHandler.sendMessage(msg); 5471 } 5472 5473 public void dispatchUnhandledKey(KeyEvent event) { 5474 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 5475 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5476 final int keyCode = event.getKeyCode(); 5477 final int metaState = event.getMetaState(); 5478 5479 // Check for fallback actions specified by the key character map. 5480 KeyCharacterMap.FallbackAction fallbackAction = 5481 kcm.getFallbackAction(keyCode, metaState); 5482 if (fallbackAction != null) { 5483 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5484 KeyEvent fallbackEvent = KeyEvent.obtain( 5485 event.getDownTime(), event.getEventTime(), 5486 event.getAction(), fallbackAction.keyCode, 5487 event.getRepeatCount(), fallbackAction.metaState, 5488 event.getDeviceId(), event.getScanCode(), 5489 flags, event.getSource(), null); 5490 fallbackAction.recycle(); 5491 5492 dispatchKey(fallbackEvent); 5493 } 5494 } 5495 } 5496 5497 public void dispatchAppVisibility(boolean visible) { 5498 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 5499 msg.arg1 = visible ? 1 : 0; 5500 mHandler.sendMessage(msg); 5501 } 5502 5503 public void dispatchScreenStateChange(boolean on) { 5504 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 5505 msg.arg1 = on ? 1 : 0; 5506 mHandler.sendMessage(msg); 5507 } 5508 5509 public void dispatchGetNewSurface() { 5510 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 5511 mHandler.sendMessage(msg); 5512 } 5513 5514 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5515 Message msg = Message.obtain(); 5516 msg.what = MSG_WINDOW_FOCUS_CHANGED; 5517 msg.arg1 = hasFocus ? 1 : 0; 5518 msg.arg2 = inTouchMode ? 1 : 0; 5519 mHandler.sendMessage(msg); 5520 } 5521 5522 public void dispatchCloseSystemDialogs(String reason) { 5523 Message msg = Message.obtain(); 5524 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 5525 msg.obj = reason; 5526 mHandler.sendMessage(msg); 5527 } 5528 5529 public void dispatchDragEvent(DragEvent event) { 5530 final int what; 5531 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 5532 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 5533 mHandler.removeMessages(what); 5534 } else { 5535 what = MSG_DISPATCH_DRAG_EVENT; 5536 } 5537 Message msg = mHandler.obtainMessage(what, event); 5538 mHandler.sendMessage(msg); 5539 } 5540 5541 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5542 int localValue, int localChanges) { 5543 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 5544 args.seq = seq; 5545 args.globalVisibility = globalVisibility; 5546 args.localValue = localValue; 5547 args.localChanges = localChanges; 5548 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 5549 } 5550 5551 public void dispatchDoneAnimating() { 5552 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 5553 } 5554 5555 public void dispatchCheckFocus() { 5556 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 5557 // This will result in a call to checkFocus() below. 5558 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 5559 } 5560 } 5561 5562 /** 5563 * Post a callback to send a 5564 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 5565 * This event is send at most once every 5566 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 5567 */ 5568 private void postSendWindowContentChangedCallback(View source) { 5569 if (mSendWindowContentChangedAccessibilityEvent == null) { 5570 mSendWindowContentChangedAccessibilityEvent = 5571 new SendWindowContentChangedAccessibilityEvent(); 5572 } 5573 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 5574 if (oldSource == null) { 5575 mSendWindowContentChangedAccessibilityEvent.mSource = source; 5576 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 5577 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 5578 } else { 5579 mSendWindowContentChangedAccessibilityEvent.mSource = 5580 getCommonPredecessor(oldSource, source); 5581 } 5582 } 5583 5584 /** 5585 * Remove a posted callback to send a 5586 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 5587 */ 5588 private void removeSendWindowContentChangedCallback() { 5589 if (mSendWindowContentChangedAccessibilityEvent != null) { 5590 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 5591 } 5592 } 5593 5594 public boolean showContextMenuForChild(View originalView) { 5595 return false; 5596 } 5597 5598 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 5599 return null; 5600 } 5601 5602 public void createContextMenu(ContextMenu menu) { 5603 } 5604 5605 public void childDrawableStateChanged(View child) { 5606 } 5607 5608 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 5609 if (mView == null) { 5610 return false; 5611 } 5612 // Intercept accessibility focus events fired by virtual nodes to keep 5613 // track of accessibility focus position in such nodes. 5614 final int eventType = event.getEventType(); 5615 switch (eventType) { 5616 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 5617 final long sourceNodeId = event.getSourceNodeId(); 5618 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 5619 sourceNodeId); 5620 View source = mView.findViewByAccessibilityId(accessibilityViewId); 5621 if (source != null) { 5622 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 5623 if (provider != null) { 5624 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 5625 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 5626 setAccessibilityFocus(source, node); 5627 } 5628 } 5629 } break; 5630 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 5631 final long sourceNodeId = event.getSourceNodeId(); 5632 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 5633 sourceNodeId); 5634 View source = mView.findViewByAccessibilityId(accessibilityViewId); 5635 if (source != null) { 5636 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 5637 if (provider != null) { 5638 setAccessibilityFocus(null, null); 5639 } 5640 } 5641 } break; 5642 } 5643 mAccessibilityManager.sendAccessibilityEvent(event); 5644 return true; 5645 } 5646 5647 @Override 5648 public void childAccessibilityStateChanged(View child) { 5649 postSendWindowContentChangedCallback(child); 5650 } 5651 5652 @Override 5653 public boolean canResolveLayoutDirection() { 5654 return true; 5655 } 5656 5657 @Override 5658 public boolean isLayoutDirectionResolved() { 5659 return true; 5660 } 5661 5662 @Override 5663 public int getLayoutDirection() { 5664 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 5665 } 5666 5667 @Override 5668 public boolean canResolveTextDirection() { 5669 return true; 5670 } 5671 5672 @Override 5673 public boolean isTextDirectionResolved() { 5674 return true; 5675 } 5676 5677 @Override 5678 public int getTextDirection() { 5679 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 5680 } 5681 5682 @Override 5683 public boolean canResolveTextAlignment() { 5684 return true; 5685 } 5686 5687 @Override 5688 public boolean isTextAlignmentResolved() { 5689 return true; 5690 } 5691 5692 @Override 5693 public int getTextAlignment() { 5694 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5695 } 5696 5697 private View getCommonPredecessor(View first, View second) { 5698 if (mAttachInfo != null) { 5699 if (mTempHashSet == null) { 5700 mTempHashSet = new HashSet<View>(); 5701 } 5702 HashSet<View> seen = mTempHashSet; 5703 seen.clear(); 5704 View firstCurrent = first; 5705 while (firstCurrent != null) { 5706 seen.add(firstCurrent); 5707 ViewParent firstCurrentParent = firstCurrent.mParent; 5708 if (firstCurrentParent instanceof View) { 5709 firstCurrent = (View) firstCurrentParent; 5710 } else { 5711 firstCurrent = null; 5712 } 5713 } 5714 View secondCurrent = second; 5715 while (secondCurrent != null) { 5716 if (seen.contains(secondCurrent)) { 5717 seen.clear(); 5718 return secondCurrent; 5719 } 5720 ViewParent secondCurrentParent = secondCurrent.mParent; 5721 if (secondCurrentParent instanceof View) { 5722 secondCurrent = (View) secondCurrentParent; 5723 } else { 5724 secondCurrent = null; 5725 } 5726 } 5727 seen.clear(); 5728 } 5729 return null; 5730 } 5731 5732 void checkThread() { 5733 if (mThread != Thread.currentThread()) { 5734 throw new CalledFromWrongThreadException( 5735 "Only the original thread that created a view hierarchy can touch its views."); 5736 } 5737 } 5738 5739 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5740 // ViewAncestor never intercepts touch event, so this can be a no-op 5741 } 5742 5743 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5744 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5745 if (rectangle != null) { 5746 mTempRect.set(rectangle); 5747 mTempRect.offset(0, -mCurScrollY); 5748 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5749 try { 5750 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5751 } catch (RemoteException re) { 5752 /* ignore */ 5753 } 5754 } 5755 return scrolled; 5756 } 5757 5758 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5759 // Do nothing. 5760 } 5761 5762 class TakenSurfaceHolder extends BaseSurfaceHolder { 5763 @Override 5764 public boolean onAllowLockCanvas() { 5765 return mDrawingAllowed; 5766 } 5767 5768 @Override 5769 public void onRelayoutContainer() { 5770 // Not currently interesting -- from changing between fixed and layout size. 5771 } 5772 5773 public void setFormat(int format) { 5774 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5775 } 5776 5777 public void setType(int type) { 5778 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5779 } 5780 5781 @Override 5782 public void onUpdateSurface() { 5783 // We take care of format and type changes on our own. 5784 throw new IllegalStateException("Shouldn't be here"); 5785 } 5786 5787 public boolean isCreating() { 5788 return mIsCreating; 5789 } 5790 5791 @Override 5792 public void setFixedSize(int width, int height) { 5793 throw new UnsupportedOperationException( 5794 "Currently only support sizing from layout"); 5795 } 5796 5797 public void setKeepScreenOn(boolean screenOn) { 5798 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5799 } 5800 } 5801 5802 static class W extends IWindow.Stub { 5803 private final WeakReference<ViewRootImpl> mViewAncestor; 5804 private final IWindowSession mWindowSession; 5805 5806 W(ViewRootImpl viewAncestor) { 5807 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5808 mWindowSession = viewAncestor.mWindowSession; 5809 } 5810 5811 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5812 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5813 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5814 if (viewAncestor != null) { 5815 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5816 visibleInsets, reportDraw, newConfig); 5817 } 5818 } 5819 5820 @Override 5821 public void moved(int newX, int newY) { 5822 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5823 if (viewAncestor != null) { 5824 viewAncestor.dispatchMoved(newX, newY); 5825 } 5826 } 5827 5828 public void dispatchAppVisibility(boolean visible) { 5829 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5830 if (viewAncestor != null) { 5831 viewAncestor.dispatchAppVisibility(visible); 5832 } 5833 } 5834 5835 public void dispatchScreenState(boolean on) { 5836 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5837 if (viewAncestor != null) { 5838 viewAncestor.dispatchScreenStateChange(on); 5839 } 5840 } 5841 5842 public void dispatchGetNewSurface() { 5843 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5844 if (viewAncestor != null) { 5845 viewAncestor.dispatchGetNewSurface(); 5846 } 5847 } 5848 5849 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5850 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5851 if (viewAncestor != null) { 5852 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5853 } 5854 } 5855 5856 private static int checkCallingPermission(String permission) { 5857 try { 5858 return ActivityManagerNative.getDefault().checkPermission( 5859 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5860 } catch (RemoteException e) { 5861 return PackageManager.PERMISSION_DENIED; 5862 } 5863 } 5864 5865 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5866 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5867 if (viewAncestor != null) { 5868 final View view = viewAncestor.mView; 5869 if (view != null) { 5870 if (checkCallingPermission(Manifest.permission.DUMP) != 5871 PackageManager.PERMISSION_GRANTED) { 5872 throw new SecurityException("Insufficient permissions to invoke" 5873 + " executeCommand() from pid=" + Binder.getCallingPid() 5874 + ", uid=" + Binder.getCallingUid()); 5875 } 5876 5877 OutputStream clientStream = null; 5878 try { 5879 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5880 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5881 } catch (IOException e) { 5882 e.printStackTrace(); 5883 } finally { 5884 if (clientStream != null) { 5885 try { 5886 clientStream.close(); 5887 } catch (IOException e) { 5888 e.printStackTrace(); 5889 } 5890 } 5891 } 5892 } 5893 } 5894 } 5895 5896 public void closeSystemDialogs(String reason) { 5897 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5898 if (viewAncestor != null) { 5899 viewAncestor.dispatchCloseSystemDialogs(reason); 5900 } 5901 } 5902 5903 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5904 boolean sync) { 5905 if (sync) { 5906 try { 5907 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5908 } catch (RemoteException e) { 5909 } 5910 } 5911 } 5912 5913 public void dispatchWallpaperCommand(String action, int x, int y, 5914 int z, Bundle extras, boolean sync) { 5915 if (sync) { 5916 try { 5917 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5918 } catch (RemoteException e) { 5919 } 5920 } 5921 } 5922 5923 /* Drag/drop */ 5924 public void dispatchDragEvent(DragEvent event) { 5925 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5926 if (viewAncestor != null) { 5927 viewAncestor.dispatchDragEvent(event); 5928 } 5929 } 5930 5931 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5932 int localValue, int localChanges) { 5933 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5934 if (viewAncestor != null) { 5935 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5936 localValue, localChanges); 5937 } 5938 } 5939 5940 public void doneAnimating() { 5941 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5942 if (viewAncestor != null) { 5943 viewAncestor.dispatchDoneAnimating(); 5944 } 5945 } 5946 } 5947 5948 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5949 public CalledFromWrongThreadException(String msg) { 5950 super(msg); 5951 } 5952 } 5953 5954 private SurfaceHolder mHolder = new SurfaceHolder() { 5955 // we only need a SurfaceHolder for opengl. it would be nice 5956 // to implement everything else though, especially the callback 5957 // support (opengl doesn't make use of it right now, but eventually 5958 // will). 5959 public Surface getSurface() { 5960 return mSurface; 5961 } 5962 5963 public boolean isCreating() { 5964 return false; 5965 } 5966 5967 public void addCallback(Callback callback) { 5968 } 5969 5970 public void removeCallback(Callback callback) { 5971 } 5972 5973 public void setFixedSize(int width, int height) { 5974 } 5975 5976 public void setSizeFromLayout() { 5977 } 5978 5979 public void setFormat(int format) { 5980 } 5981 5982 public void setType(int type) { 5983 } 5984 5985 public void setKeepScreenOn(boolean screenOn) { 5986 } 5987 5988 public Canvas lockCanvas() { 5989 return null; 5990 } 5991 5992 public Canvas lockCanvas(Rect dirty) { 5993 return null; 5994 } 5995 5996 public void unlockCanvasAndPost(Canvas canvas) { 5997 } 5998 public Rect getSurfaceFrame() { 5999 return null; 6000 } 6001 }; 6002 6003 static RunQueue getRunQueue() { 6004 RunQueue rq = sRunQueues.get(); 6005 if (rq != null) { 6006 return rq; 6007 } 6008 rq = new RunQueue(); 6009 sRunQueues.set(rq); 6010 return rq; 6011 } 6012 6013 /** 6014 * The run queue is used to enqueue pending work from Views when no Handler is 6015 * attached. The work is executed during the next call to performTraversals on 6016 * the thread. 6017 * @hide 6018 */ 6019 static final class RunQueue { 6020 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6021 6022 void post(Runnable action) { 6023 postDelayed(action, 0); 6024 } 6025 6026 void postDelayed(Runnable action, long delayMillis) { 6027 HandlerAction handlerAction = new HandlerAction(); 6028 handlerAction.action = action; 6029 handlerAction.delay = delayMillis; 6030 6031 synchronized (mActions) { 6032 mActions.add(handlerAction); 6033 } 6034 } 6035 6036 void removeCallbacks(Runnable action) { 6037 final HandlerAction handlerAction = new HandlerAction(); 6038 handlerAction.action = action; 6039 6040 synchronized (mActions) { 6041 final ArrayList<HandlerAction> actions = mActions; 6042 6043 while (actions.remove(handlerAction)) { 6044 // Keep going 6045 } 6046 } 6047 } 6048 6049 void executeActions(Handler handler) { 6050 synchronized (mActions) { 6051 final ArrayList<HandlerAction> actions = mActions; 6052 final int count = actions.size(); 6053 6054 for (int i = 0; i < count; i++) { 6055 final HandlerAction handlerAction = actions.get(i); 6056 handler.postDelayed(handlerAction.action, handlerAction.delay); 6057 } 6058 6059 actions.clear(); 6060 } 6061 } 6062 6063 private static class HandlerAction { 6064 Runnable action; 6065 long delay; 6066 6067 @Override 6068 public boolean equals(Object o) { 6069 if (this == o) return true; 6070 if (o == null || getClass() != o.getClass()) return false; 6071 6072 HandlerAction that = (HandlerAction) o; 6073 return !(action != null ? !action.equals(that.action) : that.action != null); 6074 6075 } 6076 6077 @Override 6078 public int hashCode() { 6079 int result = action != null ? action.hashCode() : 0; 6080 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6081 return result; 6082 } 6083 } 6084 } 6085 6086 /** 6087 * Class for managing the accessibility interaction connection 6088 * based on the global accessibility state. 6089 */ 6090 final class AccessibilityInteractionConnectionManager 6091 implements AccessibilityStateChangeListener { 6092 public void onAccessibilityStateChanged(boolean enabled) { 6093 if (enabled) { 6094 ensureConnection(); 6095 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 6096 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6097 View focusedView = mView.findFocus(); 6098 if (focusedView != null && focusedView != mView) { 6099 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6100 } 6101 } 6102 } else { 6103 ensureNoConnection(); 6104 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6105 } 6106 } 6107 6108 public void ensureConnection() { 6109 if (mAttachInfo != null) { 6110 final boolean registered = 6111 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 6112 if (!registered) { 6113 mAttachInfo.mAccessibilityWindowId = 6114 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6115 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6116 } 6117 } 6118 } 6119 6120 public void ensureNoConnection() { 6121 final boolean registered = 6122 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 6123 if (registered) { 6124 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 6125 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6126 } 6127 } 6128 } 6129 6130 /** 6131 * This class is an interface this ViewAncestor provides to the 6132 * AccessibilityManagerService to the latter can interact with 6133 * the view hierarchy in this ViewAncestor. 6134 */ 6135 static final class AccessibilityInteractionConnection 6136 extends IAccessibilityInteractionConnection.Stub { 6137 private final WeakReference<ViewRootImpl> mViewRootImpl; 6138 6139 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6140 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6141 } 6142 6143 @Override 6144 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6145 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6146 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6147 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6148 if (viewRootImpl != null && viewRootImpl.mView != null) { 6149 viewRootImpl.getAccessibilityInteractionController() 6150 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6151 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6152 spec); 6153 } else { 6154 // We cannot make the call and notify the caller so it does not wait. 6155 try { 6156 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6157 } catch (RemoteException re) { 6158 /* best effort - ignore */ 6159 } 6160 } 6161 } 6162 6163 @Override 6164 public void performAccessibilityAction(long accessibilityNodeId, int action, 6165 Bundle arguments, int interactionId, 6166 IAccessibilityInteractionConnectionCallback callback, int flags, 6167 int interogatingPid, long interrogatingTid) { 6168 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6169 if (viewRootImpl != null && viewRootImpl.mView != null) { 6170 viewRootImpl.getAccessibilityInteractionController() 6171 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6172 interactionId, callback, flags, interogatingPid, interrogatingTid); 6173 } else { 6174 // We cannot make the call and notify the caller so it does not wait. 6175 try { 6176 callback.setPerformAccessibilityActionResult(false, interactionId); 6177 } catch (RemoteException re) { 6178 /* best effort - ignore */ 6179 } 6180 } 6181 } 6182 6183 @Override 6184 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6185 String viewId, int interactionId, 6186 IAccessibilityInteractionConnectionCallback callback, int flags, 6187 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6188 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6189 if (viewRootImpl != null && viewRootImpl.mView != null) { 6190 viewRootImpl.getAccessibilityInteractionController() 6191 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6192 viewId, interactionId, callback, flags, interrogatingPid, 6193 interrogatingTid, spec); 6194 } else { 6195 // We cannot make the call and notify the caller so it does not wait. 6196 try { 6197 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6198 } catch (RemoteException re) { 6199 /* best effort - ignore */ 6200 } 6201 } 6202 } 6203 6204 @Override 6205 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6206 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6207 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6208 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6209 if (viewRootImpl != null && viewRootImpl.mView != null) { 6210 viewRootImpl.getAccessibilityInteractionController() 6211 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6212 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6213 spec); 6214 } else { 6215 // We cannot make the call and notify the caller so it does not wait. 6216 try { 6217 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6218 } catch (RemoteException re) { 6219 /* best effort - ignore */ 6220 } 6221 } 6222 } 6223 6224 @Override 6225 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 6226 IAccessibilityInteractionConnectionCallback callback, int flags, 6227 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6228 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6229 if (viewRootImpl != null && viewRootImpl.mView != null) { 6230 viewRootImpl.getAccessibilityInteractionController() 6231 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 6232 flags, interrogatingPid, interrogatingTid, spec); 6233 } else { 6234 // We cannot make the call and notify the caller so it does not wait. 6235 try { 6236 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6237 } catch (RemoteException re) { 6238 /* best effort - ignore */ 6239 } 6240 } 6241 } 6242 6243 @Override 6244 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 6245 IAccessibilityInteractionConnectionCallback callback, int flags, 6246 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6247 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6248 if (viewRootImpl != null && viewRootImpl.mView != null) { 6249 viewRootImpl.getAccessibilityInteractionController() 6250 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 6251 callback, flags, interrogatingPid, interrogatingTid, spec); 6252 } else { 6253 // We cannot make the call and notify the caller so it does not wait. 6254 try { 6255 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6256 } catch (RemoteException re) { 6257 /* best effort - ignore */ 6258 } 6259 } 6260 } 6261 } 6262 6263 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 6264 public View mSource; 6265 6266 public void run() { 6267 if (mSource != null) { 6268 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 6269 mSource.resetAccessibilityStateChanged(); 6270 mSource = null; 6271 } 6272 } 6273 } 6274} 6275