ViewRootImpl.java revision cc6dda77501d0e8dd5ea267f51c02fd120476d28
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.Looper; 46import android.os.Message; 47import android.os.ParcelFileDescriptor; 48import android.os.PowerManager; 49import android.os.Process; 50import android.os.RemoteException; 51import android.os.SystemClock; 52import android.os.SystemProperties; 53import android.os.Trace; 54import android.util.AndroidRuntimeException; 55import android.util.DisplayMetrics; 56import android.util.Log; 57import android.util.Slog; 58import android.util.TypedValue; 59import android.view.View.AttachInfo; 60import android.view.View.MeasureSpec; 61import android.view.accessibility.AccessibilityEvent; 62import android.view.accessibility.AccessibilityManager; 63import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 64import android.view.accessibility.AccessibilityNodeInfo; 65import android.view.accessibility.AccessibilityNodeProvider; 66import android.view.accessibility.IAccessibilityInteractionConnection; 67import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 68import android.view.animation.AccelerateDecelerateInterpolator; 69import android.view.animation.Interpolator; 70import android.view.inputmethod.InputConnection; 71import android.view.inputmethod.InputMethodManager; 72import android.widget.Scroller; 73 74import com.android.internal.R; 75import com.android.internal.os.SomeArgs; 76import com.android.internal.policy.PolicyManager; 77import com.android.internal.view.BaseSurfaceHolder; 78import com.android.internal.view.RootViewSurfaceTaker; 79 80import java.io.IOException; 81import java.io.OutputStream; 82import java.lang.ref.WeakReference; 83import java.util.ArrayList; 84import java.util.HashSet; 85 86/** 87 * The top of a view hierarchy, implementing the needed protocol between View 88 * and the WindowManager. This is for the most part an internal implementation 89 * detail of {@link WindowManagerGlobal}. 90 * 91 * {@hide} 92 */ 93@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 94public final class ViewRootImpl implements ViewParent, 95 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 96 private static final String TAG = "ViewRootImpl"; 97 private static final boolean DBG = false; 98 private static final boolean LOCAL_LOGV = false; 99 /** @noinspection PointlessBooleanExpression*/ 100 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 101 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 102 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 103 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 104 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 105 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 106 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 107 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_FPS = false; 109 private static final boolean DEBUG_INPUT_PROCESSING = false || LOCAL_LOGV; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 private static final String PROPERTY_MEDIA_DISABLED = "config.disable_media"; 119 120 /** 121 * Maximum time we allow the user to roll the trackball enough to generate 122 * a key event, before resetting the counters. 123 */ 124 static final int MAX_TRACKBALL_DELAY = 250; 125 126 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 127 128 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 129 static boolean sFirstDrawComplete = false; 130 131 static final ArrayList<ComponentCallbacks> sConfigCallbacks 132 = new ArrayList<ComponentCallbacks>(); 133 134 private static boolean sUseRenderThread = false; 135 private static boolean sRenderThreadQueried = false; 136 private static final Object[] sRenderThreadQueryLock = new Object[0]; 137 138 final Context mContext; 139 final IWindowSession mWindowSession; 140 final Display mDisplay; 141 final String mBasePackageName; 142 143 final int[] mTmpLocation = new int[2]; 144 145 final TypedValue mTmpValue = new TypedValue(); 146 147 final Thread mThread; 148 149 final WindowLeaked mLocation; 150 151 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 152 153 final W mWindow; 154 155 final int mTargetSdkVersion; 156 157 int mSeq; 158 159 View mView; 160 161 View mAccessibilityFocusedHost; 162 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 163 164 int mViewVisibility; 165 boolean mAppVisible = true; 166 int mOrigWindowType = -1; 167 168 // Set to true if the owner of this window is in the stopped state, 169 // so the window should no longer be active. 170 boolean mStopped = false; 171 172 boolean mLastInCompatMode = false; 173 174 SurfaceHolder.Callback2 mSurfaceHolderCallback; 175 BaseSurfaceHolder mSurfaceHolder; 176 boolean mIsCreating; 177 boolean mDrawingAllowed; 178 179 final Region mTransparentRegion; 180 final Region mPreviousTransparentRegion; 181 182 int mWidth; 183 int mHeight; 184 Rect mDirty; 185 final Rect mCurrentDirty = new Rect(); 186 boolean mIsAnimating; 187 188 CompatibilityInfo.Translator mTranslator; 189 190 final View.AttachInfo mAttachInfo; 191 InputChannel mInputChannel; 192 InputQueue.Callback mInputQueueCallback; 193 InputQueue mInputQueue; 194 FallbackEventHandler mFallbackEventHandler; 195 Choreographer mChoreographer; 196 197 final Rect mTempRect; // used in the transaction to not thrash the heap. 198 final Rect mVisRect; // used to retrieve visible rect of focused view. 199 200 boolean mTraversalScheduled; 201 int mTraversalBarrier; 202 boolean mWillDrawSoon; 203 /** Set to true while in performTraversals for detecting when die(true) is called from internal 204 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 205 boolean mIsInTraversal; 206 boolean mFitSystemWindowsRequested; 207 boolean mLayoutRequested; 208 boolean mFirst; 209 boolean mReportNextDraw; 210 boolean mFullRedrawNeeded; 211 boolean mNewSurfaceNeeded; 212 boolean mHasHadWindowFocus; 213 boolean mLastWasImTarget; 214 boolean mWindowsAnimating; 215 boolean mIsDrawing; 216 int mLastSystemUiVisibility; 217 int mClientWindowLayoutFlags; 218 boolean mLastOverscanRequested; 219 220 // Pool of queued input events. 221 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 222 private QueuedInputEvent mQueuedInputEventPool; 223 private int mQueuedInputEventPoolSize; 224 225 /* Input event queue. 226 * Pending input events are input events waiting to be delivered to the input stages 227 * and handled by the application. 228 */ 229 QueuedInputEvent mPendingInputEventHead; 230 QueuedInputEvent mPendingInputEventTail; 231 int mPendingInputEventCount; 232 boolean mProcessInputEventsScheduled; 233 String mPendingInputEventQueueLengthCounterName = "pq"; 234 235 InputStage mFirstInputStage; 236 InputStage mFirstPostImeInputStage; 237 238 boolean mWindowAttributesChanged = false; 239 int mWindowAttributesChangesFlag = 0; 240 241 // These can be accessed by any thread, must be protected with a lock. 242 // Surface can never be reassigned or cleared (use Surface.clear()). 243 private final Surface mSurface = new Surface(); 244 245 boolean mAdded; 246 boolean mAddedTouchMode; 247 248 final CompatibilityInfoHolder mCompatibilityInfo; 249 250 // These are accessed by multiple threads. 251 final Rect mWinFrame; // frame given by window manager. 252 253 final Rect mPendingOverscanInsets = new Rect(); 254 final Rect mPendingVisibleInsets = new Rect(); 255 final Rect mPendingContentInsets = new Rect(); 256 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 257 = new ViewTreeObserver.InternalInsetsInfo(); 258 259 final Rect mFitSystemWindowsInsets = new Rect(); 260 261 final Configuration mLastConfiguration = new Configuration(); 262 final Configuration mPendingConfiguration = new Configuration(); 263 264 boolean mScrollMayChange; 265 int mSoftInputMode; 266 WeakReference<View> mLastScrolledFocus; 267 int mScrollY; 268 int mCurScrollY; 269 Scroller mScroller; 270 HardwareLayer mResizeBuffer; 271 long mResizeBufferStartTime; 272 int mResizeBufferDuration; 273 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 274 private ArrayList<LayoutTransition> mPendingTransitions; 275 276 final ViewConfiguration mViewConfiguration; 277 278 /* Drag/drop */ 279 ClipDescription mDragDescription; 280 View mCurrentDragView; 281 volatile Object mLocalDragState; 282 final PointF mDragPoint = new PointF(); 283 final PointF mLastTouchPoint = new PointF(); 284 285 private boolean mProfileRendering; 286 private Choreographer.FrameCallback mRenderProfiler; 287 private boolean mRenderProfilingEnabled; 288 289 private boolean mMediaDisabled; 290 291 // Variables to track frames per second, enabled via DEBUG_FPS flag 292 private long mFpsStartTime = -1; 293 private long mFpsPrevTime = -1; 294 private int mFpsNumFrames; 295 296 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 297 298 /** 299 * see {@link #playSoundEffect(int)} 300 */ 301 AudioManager mAudioManager; 302 303 final AccessibilityManager mAccessibilityManager; 304 305 AccessibilityInteractionController mAccessibilityInteractionController; 306 307 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 308 309 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 310 311 HashSet<View> mTempHashSet; 312 313 private final int mDensity; 314 private final int mNoncompatDensity; 315 316 private boolean mInLayout = false; 317 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 318 boolean mHandlingLayoutInLayoutRequest = false; 319 320 private int mViewLayoutDirectionInitial; 321 322 /** 323 * Consistency verifier for debugging purposes. 324 */ 325 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 326 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 327 new InputEventConsistencyVerifier(this, 0) : null; 328 329 static final class SystemUiVisibilityInfo { 330 int seq; 331 int globalVisibility; 332 int localValue; 333 int localChanges; 334 } 335 336 public ViewRootImpl(Context context, Display display) { 337 mContext = context; 338 mWindowSession = WindowManagerGlobal.getWindowSession(); 339 mDisplay = display; 340 mBasePackageName = context.getBasePackageName(); 341 342 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 343 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 344 345 mThread = Thread.currentThread(); 346 mLocation = new WindowLeaked(null); 347 mLocation.fillInStackTrace(); 348 mWidth = -1; 349 mHeight = -1; 350 mDirty = new Rect(); 351 mTempRect = new Rect(); 352 mVisRect = new Rect(); 353 mWinFrame = new Rect(); 354 mWindow = new W(this); 355 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 356 mViewVisibility = View.GONE; 357 mTransparentRegion = new Region(); 358 mPreviousTransparentRegion = new Region(); 359 mFirst = true; // true for the first time the view is added 360 mAdded = false; 361 mAccessibilityManager = AccessibilityManager.getInstance(context); 362 mAccessibilityInteractionConnectionManager = 363 new AccessibilityInteractionConnectionManager(); 364 mAccessibilityManager.addAccessibilityStateChangeListener( 365 mAccessibilityInteractionConnectionManager); 366 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 367 mViewConfiguration = ViewConfiguration.get(context); 368 mDensity = context.getResources().getDisplayMetrics().densityDpi; 369 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 370 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 371 mChoreographer = Choreographer.getInstance(); 372 373 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 374 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 375 loadSystemProperties(); 376 } 377 378 /** 379 * @return True if the application requests the use of a separate render thread, 380 * false otherwise 381 */ 382 private static boolean isRenderThreadRequested(Context context) { 383 if (USE_RENDER_THREAD) { 384 synchronized (sRenderThreadQueryLock) { 385 if (!sRenderThreadQueried) { 386 final PackageManager packageManager = context.getPackageManager(); 387 final String packageName = context.getApplicationInfo().packageName; 388 try { 389 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 390 PackageManager.GET_META_DATA); 391 if (applicationInfo.metaData != null) { 392 sUseRenderThread = applicationInfo.metaData.getBoolean( 393 "android.graphics.renderThread", false); 394 } 395 } catch (PackageManager.NameNotFoundException e) { 396 } finally { 397 sRenderThreadQueried = true; 398 } 399 } 400 return sUseRenderThread; 401 } 402 } else { 403 return false; 404 } 405 } 406 407 public static void addFirstDrawHandler(Runnable callback) { 408 synchronized (sFirstDrawHandlers) { 409 if (!sFirstDrawComplete) { 410 sFirstDrawHandlers.add(callback); 411 } 412 } 413 } 414 415 public static void addConfigCallback(ComponentCallbacks callback) { 416 synchronized (sConfigCallbacks) { 417 sConfigCallbacks.add(callback); 418 } 419 } 420 421 // FIXME for perf testing only 422 private boolean mProfile = false; 423 424 /** 425 * Call this to profile the next traversal call. 426 * FIXME for perf testing only. Remove eventually 427 */ 428 public void profile() { 429 mProfile = true; 430 } 431 432 /** 433 * Indicates whether we are in touch mode. Calling this method triggers an IPC 434 * call and should be avoided whenever possible. 435 * 436 * @return True, if the device is in touch mode, false otherwise. 437 * 438 * @hide 439 */ 440 static boolean isInTouchMode() { 441 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 442 if (windowSession != null) { 443 try { 444 return windowSession.getInTouchMode(); 445 } catch (RemoteException e) { 446 } 447 } 448 return false; 449 } 450 451 /** 452 * We have one child 453 */ 454 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 455 synchronized (this) { 456 if (mView == null) { 457 mView = view; 458 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 459 mFallbackEventHandler.setView(view); 460 mWindowAttributes.copyFrom(attrs); 461 if (mWindowAttributes.packageName == null) { 462 mWindowAttributes.packageName = mBasePackageName; 463 } 464 attrs = mWindowAttributes; 465 // Keep track of the actual window flags supplied by the client. 466 mClientWindowLayoutFlags = attrs.flags; 467 468 setAccessibilityFocus(null, null); 469 470 if (view instanceof RootViewSurfaceTaker) { 471 mSurfaceHolderCallback = 472 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 473 if (mSurfaceHolderCallback != null) { 474 mSurfaceHolder = new TakenSurfaceHolder(); 475 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 476 } 477 } 478 479 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 480 mTranslator = compatibilityInfo.getTranslator(); 481 482 // If the application owns the surface, don't enable hardware acceleration 483 if (mSurfaceHolder == null) { 484 enableHardwareAcceleration(mView.getContext(), attrs); 485 } 486 487 boolean restore = false; 488 if (mTranslator != null) { 489 mSurface.setCompatibilityTranslator(mTranslator); 490 restore = true; 491 attrs.backup(); 492 mTranslator.translateWindowLayout(attrs); 493 } 494 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 495 496 if (!compatibilityInfo.supportsScreen()) { 497 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 498 mLastInCompatMode = true; 499 } 500 501 mSoftInputMode = attrs.softInputMode; 502 mWindowAttributesChanged = true; 503 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 504 mAttachInfo.mRootView = view; 505 mAttachInfo.mScalingRequired = mTranslator != null; 506 mAttachInfo.mApplicationScale = 507 mTranslator == null ? 1.0f : mTranslator.applicationScale; 508 if (panelParentView != null) { 509 mAttachInfo.mPanelParentWindowToken 510 = panelParentView.getApplicationWindowToken(); 511 } 512 mAdded = true; 513 int res; /* = WindowManagerImpl.ADD_OKAY; */ 514 515 // Schedule the first layout -before- adding to the window 516 // manager, to make sure we do the relayout before receiving 517 // any other events from the system. 518 requestLayout(); 519 if ((mWindowAttributes.inputFeatures 520 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 521 mInputChannel = new InputChannel(); 522 } 523 try { 524 mOrigWindowType = mWindowAttributes.type; 525 mAttachInfo.mRecomputeGlobalAttributes = true; 526 collectViewAttributes(); 527 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 528 getHostVisibility(), mDisplay.getDisplayId(), 529 mAttachInfo.mContentInsets, mInputChannel); 530 } catch (RemoteException e) { 531 mAdded = false; 532 mView = null; 533 mAttachInfo.mRootView = null; 534 mInputChannel = null; 535 mFallbackEventHandler.setView(null); 536 unscheduleTraversals(); 537 setAccessibilityFocus(null, null); 538 throw new RuntimeException("Adding window failed", e); 539 } finally { 540 if (restore) { 541 attrs.restore(); 542 } 543 } 544 545 if (mTranslator != null) { 546 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 547 } 548 mPendingOverscanInsets.set(0, 0, 0, 0); 549 mPendingContentInsets.set(mAttachInfo.mContentInsets); 550 mPendingVisibleInsets.set(0, 0, 0, 0); 551 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 552 if (res < WindowManagerGlobal.ADD_OKAY) { 553 mAttachInfo.mRootView = null; 554 mAdded = false; 555 mFallbackEventHandler.setView(null); 556 unscheduleTraversals(); 557 setAccessibilityFocus(null, null); 558 switch (res) { 559 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 560 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 561 throw new WindowManager.BadTokenException( 562 "Unable to add window -- token " + attrs.token 563 + " is not valid; is your activity running?"); 564 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 565 throw new WindowManager.BadTokenException( 566 "Unable to add window -- token " + attrs.token 567 + " is not for an application"); 568 case WindowManagerGlobal.ADD_APP_EXITING: 569 throw new WindowManager.BadTokenException( 570 "Unable to add window -- app for token " + attrs.token 571 + " is exiting"); 572 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 573 throw new WindowManager.BadTokenException( 574 "Unable to add window -- window " + mWindow 575 + " has already been added"); 576 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 577 // Silently ignore -- we would have just removed it 578 // right away, anyway. 579 return; 580 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 581 throw new WindowManager.BadTokenException( 582 "Unable to add window " + mWindow + 583 " -- another window of this type already exists"); 584 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 585 throw new WindowManager.BadTokenException( 586 "Unable to add window " + mWindow + 587 " -- permission denied for this window type"); 588 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 589 throw new WindowManager.InvalidDisplayException( 590 "Unable to add window " + mWindow + 591 " -- the specified display can not be found"); 592 } 593 throw new RuntimeException( 594 "Unable to add window -- unknown error code " + res); 595 } 596 597 if (view instanceof RootViewSurfaceTaker) { 598 mInputQueueCallback = 599 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 600 } 601 if (mInputChannel != null) { 602 if (mInputQueueCallback != null) { 603 mInputQueue = new InputQueue(mInputChannel); 604 mInputQueueCallback.onInputQueueCreated(mInputQueue); 605 } else { 606 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 607 Looper.myLooper()); 608 } 609 } 610 611 view.assignParent(this); 612 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 613 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 614 615 if (mAccessibilityManager.isEnabled()) { 616 mAccessibilityInteractionConnectionManager.ensureConnection(); 617 } 618 619 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 620 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 621 } 622 623 // Set up the input pipeline. 624 CharSequence counterSuffix = attrs.getTitle(); 625 InputStage syntheticStage = new SyntheticInputStage(); 626 InputStage viewPostImeStage = new ViewPostImeInputStage(syntheticStage); 627 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 628 "aq:native-post-ime:" + counterSuffix); 629 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 630 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 631 "aq:ime:" + counterSuffix); 632 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 633 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 634 "aq:native-pre-ime:" + counterSuffix); 635 636 mFirstInputStage = nativePreImeStage; 637 mFirstPostImeInputStage = earlyPostImeStage; 638 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 639 } 640 } 641 } 642 643 void destroyHardwareResources() { 644 if (mAttachInfo.mHardwareRenderer != null) { 645 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 646 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 647 } 648 mAttachInfo.mHardwareRenderer.destroy(false); 649 } 650 } 651 652 void terminateHardwareResources() { 653 if (mAttachInfo.mHardwareRenderer != null) { 654 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 655 mAttachInfo.mHardwareRenderer.destroy(false); 656 } 657 } 658 659 void destroyHardwareLayers() { 660 if (mThread != Thread.currentThread()) { 661 if (mAttachInfo.mHardwareRenderer != null && 662 mAttachInfo.mHardwareRenderer.isEnabled()) { 663 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 664 } 665 } else { 666 if (mAttachInfo.mHardwareRenderer != null && 667 mAttachInfo.mHardwareRenderer.isEnabled()) { 668 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 669 } 670 } 671 } 672 673 void pushHardwareLayerUpdate(HardwareLayer layer) { 674 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 675 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 676 } 677 } 678 679 public boolean attachFunctor(int functor) { 680 //noinspection SimplifiableIfStatement 681 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 682 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 683 } 684 return false; 685 } 686 687 public void detachFunctor(int functor) { 688 if (mAttachInfo.mHardwareRenderer != null) { 689 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 690 } 691 } 692 693 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 694 mAttachInfo.mHardwareAccelerated = false; 695 mAttachInfo.mHardwareAccelerationRequested = false; 696 697 // Don't enable hardware acceleration when the application is in compatibility mode 698 if (mTranslator != null) return; 699 700 // Try to enable hardware acceleration if requested 701 final boolean hardwareAccelerated = 702 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 703 704 if (hardwareAccelerated) { 705 if (!HardwareRenderer.isAvailable()) { 706 return; 707 } 708 709 // Persistent processes (including the system) should not do 710 // accelerated rendering on low-end devices. In that case, 711 // sRendererDisabled will be set. In addition, the system process 712 // itself should never do accelerated rendering. In that case, both 713 // sRendererDisabled and sSystemRendererDisabled are set. When 714 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 715 // can be used by code on the system process to escape that and enable 716 // HW accelerated drawing. (This is basically for the lock screen.) 717 718 final boolean fakeHwAccelerated = (attrs.privateFlags & 719 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 720 final boolean forceHwAccelerated = (attrs.privateFlags & 721 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 722 723 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 724 && forceHwAccelerated)) { 725 // Don't enable hardware acceleration when we're not on the main thread 726 if (!HardwareRenderer.sSystemRendererDisabled && 727 Looper.getMainLooper() != Looper.myLooper()) { 728 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 729 + "acceleration outside of the main thread, aborting"); 730 return; 731 } 732 733 final boolean renderThread = isRenderThreadRequested(context); 734 if (renderThread) { 735 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 736 } 737 738 if (mAttachInfo.mHardwareRenderer != null) { 739 mAttachInfo.mHardwareRenderer.destroy(true); 740 } 741 742 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 743 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 744 if (mAttachInfo.mHardwareRenderer != null) { 745 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 746 mAttachInfo.mHardwareAccelerated = 747 mAttachInfo.mHardwareAccelerationRequested = true; 748 } 749 } else if (fakeHwAccelerated) { 750 // The window had wanted to use hardware acceleration, but this 751 // is not allowed in its process. By setting this flag, it can 752 // still render as if it was accelerated. This is basically for 753 // the preview windows the window manager shows for launching 754 // applications, so they will look more like the app being launched. 755 mAttachInfo.mHardwareAccelerationRequested = true; 756 } 757 } 758 } 759 760 public View getView() { 761 return mView; 762 } 763 764 final WindowLeaked getLocation() { 765 return mLocation; 766 } 767 768 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 769 synchronized (this) { 770 int oldSoftInputMode = mWindowAttributes.softInputMode; 771 // Keep track of the actual window flags supplied by the client. 772 mClientWindowLayoutFlags = attrs.flags; 773 // preserve compatible window flag if exists. 774 int compatibleWindowFlag = 775 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 776 // transfer over system UI visibility values as they carry current state. 777 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 778 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 779 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 780 if (mWindowAttributes.packageName == null) { 781 mWindowAttributes.packageName = mBasePackageName; 782 } 783 mWindowAttributes.flags |= compatibleWindowFlag; 784 785 applyKeepScreenOnFlag(mWindowAttributes); 786 787 if (newView) { 788 mSoftInputMode = attrs.softInputMode; 789 requestLayout(); 790 } 791 // Don't lose the mode we last auto-computed. 792 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 793 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 794 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 795 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 796 | (oldSoftInputMode 797 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 798 } 799 mWindowAttributesChanged = true; 800 scheduleTraversals(); 801 } 802 } 803 804 void handleAppVisibility(boolean visible) { 805 if (mAppVisible != visible) { 806 mAppVisible = visible; 807 scheduleTraversals(); 808 } 809 } 810 811 void handleGetNewSurface() { 812 mNewSurfaceNeeded = true; 813 mFullRedrawNeeded = true; 814 scheduleTraversals(); 815 } 816 817 void handleScreenStateChange(boolean on) { 818 if (on != mAttachInfo.mScreenOn) { 819 mAttachInfo.mScreenOn = on; 820 if (mView != null) { 821 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 822 } 823 if (on) { 824 mFullRedrawNeeded = true; 825 scheduleTraversals(); 826 } 827 } 828 } 829 830 @Override 831 public void requestFitSystemWindows() { 832 checkThread(); 833 mFitSystemWindowsRequested = true; 834 scheduleTraversals(); 835 } 836 837 @Override 838 public void requestLayout() { 839 if (!mHandlingLayoutInLayoutRequest) { 840 checkThread(); 841 mLayoutRequested = true; 842 scheduleTraversals(); 843 } 844 } 845 846 @Override 847 public boolean isLayoutRequested() { 848 return mLayoutRequested; 849 } 850 851 void invalidate() { 852 mDirty.set(0, 0, mWidth, mHeight); 853 scheduleTraversals(); 854 } 855 856 void invalidateWorld(View view) { 857 view.invalidate(); 858 if (view instanceof ViewGroup) { 859 ViewGroup parent = (ViewGroup) view; 860 for (int i = 0; i < parent.getChildCount(); i++) { 861 invalidateWorld(parent.getChildAt(i)); 862 } 863 } 864 } 865 866 @Override 867 public void invalidateChild(View child, Rect dirty) { 868 invalidateChildInParent(null, dirty); 869 } 870 871 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 872 checkThread(); 873 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 874 875 if (dirty == null) { 876 invalidate(); 877 return null; 878 } else if (dirty.isEmpty() && !mIsAnimating) { 879 return null; 880 } 881 882 if (mCurScrollY != 0 || mTranslator != null) { 883 mTempRect.set(dirty); 884 dirty = mTempRect; 885 if (mCurScrollY != 0) { 886 dirty.offset(0, -mCurScrollY); 887 } 888 if (mTranslator != null) { 889 mTranslator.translateRectInAppWindowToScreen(dirty); 890 } 891 if (mAttachInfo.mScalingRequired) { 892 dirty.inset(-1, -1); 893 } 894 } 895 896 final Rect localDirty = mDirty; 897 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 898 mAttachInfo.mSetIgnoreDirtyState = true; 899 mAttachInfo.mIgnoreDirtyState = true; 900 } 901 902 // Add the new dirty rect to the current one 903 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 904 // Intersect with the bounds of the window to skip 905 // updates that lie outside of the visible region 906 final float appScale = mAttachInfo.mApplicationScale; 907 final boolean intersected = localDirty.intersect(0, 0, 908 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 909 if (!intersected) { 910 localDirty.setEmpty(); 911 } 912 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 913 scheduleTraversals(); 914 } 915 916 return null; 917 } 918 919 void setStopped(boolean stopped) { 920 if (mStopped != stopped) { 921 mStopped = stopped; 922 if (!stopped) { 923 scheduleTraversals(); 924 } 925 } 926 } 927 928 public ViewParent getParent() { 929 return null; 930 } 931 932 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 933 if (child != mView) { 934 throw new RuntimeException("child is not mine, honest!"); 935 } 936 // Note: don't apply scroll offset, because we want to know its 937 // visibility in the virtual canvas being given to the view hierarchy. 938 return r.intersect(0, 0, mWidth, mHeight); 939 } 940 941 public void bringChildToFront(View child) { 942 } 943 944 int getHostVisibility() { 945 return mAppVisible ? mView.getVisibility() : View.GONE; 946 } 947 948 void disposeResizeBuffer() { 949 if (mResizeBuffer != null) { 950 mResizeBuffer.destroy(); 951 mResizeBuffer = null; 952 } 953 } 954 955 /** 956 * Add LayoutTransition to the list of transitions to be started in the next traversal. 957 * This list will be cleared after the transitions on the list are start()'ed. These 958 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 959 * happens during the layout phase of traversal, which we want to complete before any of the 960 * animations are started (because those animations may side-effect properties that layout 961 * depends upon, like the bounding rectangles of the affected views). So we add the transition 962 * to the list and it is started just prior to starting the drawing phase of traversal. 963 * 964 * @param transition The LayoutTransition to be started on the next traversal. 965 * 966 * @hide 967 */ 968 public void requestTransitionStart(LayoutTransition transition) { 969 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 970 if (mPendingTransitions == null) { 971 mPendingTransitions = new ArrayList<LayoutTransition>(); 972 } 973 mPendingTransitions.add(transition); 974 } 975 } 976 977 void scheduleTraversals() { 978 if (!mTraversalScheduled) { 979 mTraversalScheduled = true; 980 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 981 mChoreographer.postCallback( 982 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 983 scheduleConsumeBatchedInput(); 984 } 985 } 986 987 void unscheduleTraversals() { 988 if (mTraversalScheduled) { 989 mTraversalScheduled = false; 990 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 991 mChoreographer.removeCallbacks( 992 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 993 } 994 } 995 996 void doTraversal() { 997 if (mTraversalScheduled) { 998 mTraversalScheduled = false; 999 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1000 1001 if (mProfile) { 1002 Debug.startMethodTracing("ViewAncestor"); 1003 } 1004 1005 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1006 try { 1007 performTraversals(); 1008 } finally { 1009 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1010 } 1011 1012 if (mProfile) { 1013 Debug.stopMethodTracing(); 1014 mProfile = false; 1015 } 1016 } 1017 } 1018 1019 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1020 // Update window's global keep screen on flag: if a view has requested 1021 // that the screen be kept on, then it is always set; otherwise, it is 1022 // set to whatever the client last requested for the global state. 1023 if (mAttachInfo.mKeepScreenOn) { 1024 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1025 } else { 1026 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1027 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1028 } 1029 } 1030 1031 private boolean collectViewAttributes() { 1032 final View.AttachInfo attachInfo = mAttachInfo; 1033 if (attachInfo.mRecomputeGlobalAttributes) { 1034 //Log.i(TAG, "Computing view hierarchy attributes!"); 1035 attachInfo.mRecomputeGlobalAttributes = false; 1036 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1037 attachInfo.mKeepScreenOn = false; 1038 attachInfo.mSystemUiVisibility = 0; 1039 attachInfo.mHasSystemUiListeners = false; 1040 mView.dispatchCollectViewAttributes(attachInfo, 0); 1041 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1042 WindowManager.LayoutParams params = mWindowAttributes; 1043 if (attachInfo.mKeepScreenOn != oldScreenOn 1044 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1045 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1046 applyKeepScreenOnFlag(params); 1047 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1048 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1049 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1050 return true; 1051 } 1052 } 1053 return false; 1054 } 1055 1056 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1057 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1058 int childWidthMeasureSpec; 1059 int childHeightMeasureSpec; 1060 boolean windowSizeMayChange = false; 1061 1062 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1063 "Measuring " + host + " in display " + desiredWindowWidth 1064 + "x" + desiredWindowHeight + "..."); 1065 1066 boolean goodMeasure = false; 1067 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1068 // On large screens, we don't want to allow dialogs to just 1069 // stretch to fill the entire width of the screen to display 1070 // one line of text. First try doing the layout at a smaller 1071 // size to see if it will fit. 1072 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1073 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1074 int baseSize = 0; 1075 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1076 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1077 } 1078 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1079 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1080 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1081 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1082 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1084 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1085 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1086 goodMeasure = true; 1087 } else { 1088 // Didn't fit in that size... try expanding a bit. 1089 baseSize = (baseSize+desiredWindowWidth)/2; 1090 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1091 + baseSize); 1092 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1093 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1094 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1095 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1096 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1097 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1098 goodMeasure = true; 1099 } 1100 } 1101 } 1102 } 1103 1104 if (!goodMeasure) { 1105 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1106 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1107 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1108 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1109 windowSizeMayChange = true; 1110 } 1111 } 1112 1113 if (DBG) { 1114 System.out.println("======================================"); 1115 System.out.println("performTraversals -- after measure"); 1116 host.debug(); 1117 } 1118 1119 return windowSizeMayChange; 1120 } 1121 1122 private void performTraversals() { 1123 // cache mView since it is used so much below... 1124 final View host = mView; 1125 1126 if (DBG) { 1127 System.out.println("======================================"); 1128 System.out.println("performTraversals"); 1129 host.debug(); 1130 } 1131 1132 if (host == null || !mAdded) 1133 return; 1134 1135 mIsInTraversal = true; 1136 mWillDrawSoon = true; 1137 boolean windowSizeMayChange = false; 1138 boolean newSurface = false; 1139 boolean surfaceChanged = false; 1140 WindowManager.LayoutParams lp = mWindowAttributes; 1141 1142 int desiredWindowWidth; 1143 int desiredWindowHeight; 1144 1145 final View.AttachInfo attachInfo = mAttachInfo; 1146 1147 final int viewVisibility = getHostVisibility(); 1148 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1149 || mNewSurfaceNeeded; 1150 1151 WindowManager.LayoutParams params = null; 1152 if (mWindowAttributesChanged) { 1153 mWindowAttributesChanged = false; 1154 surfaceChanged = true; 1155 params = lp; 1156 } 1157 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1158 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1159 params = lp; 1160 mFullRedrawNeeded = true; 1161 mLayoutRequested = true; 1162 if (mLastInCompatMode) { 1163 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1164 mLastInCompatMode = false; 1165 } else { 1166 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1167 mLastInCompatMode = true; 1168 } 1169 } 1170 1171 mWindowAttributesChangesFlag = 0; 1172 1173 Rect frame = mWinFrame; 1174 if (mFirst) { 1175 mFullRedrawNeeded = true; 1176 mLayoutRequested = true; 1177 1178 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1179 // NOTE -- system code, won't try to do compat mode. 1180 Point size = new Point(); 1181 mDisplay.getRealSize(size); 1182 desiredWindowWidth = size.x; 1183 desiredWindowHeight = size.y; 1184 } else { 1185 DisplayMetrics packageMetrics = 1186 mView.getContext().getResources().getDisplayMetrics(); 1187 desiredWindowWidth = packageMetrics.widthPixels; 1188 desiredWindowHeight = packageMetrics.heightPixels; 1189 } 1190 1191 // For the very first time, tell the view hierarchy that it 1192 // is attached to the window. Note that at this point the surface 1193 // object is not initialized to its backing store, but soon it 1194 // will be (assuming the window is visible). 1195 attachInfo.mSurface = mSurface; 1196 // We used to use the following condition to choose 32 bits drawing caches: 1197 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1198 // However, windows are now always 32 bits by default, so choose 32 bits 1199 attachInfo.mUse32BitDrawingCache = true; 1200 attachInfo.mHasWindowFocus = false; 1201 attachInfo.mWindowVisibility = viewVisibility; 1202 attachInfo.mRecomputeGlobalAttributes = false; 1203 viewVisibilityChanged = false; 1204 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1205 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1206 // Set the layout direction if it has not been set before (inherit is the default) 1207 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1208 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1209 } 1210 host.dispatchAttachedToWindow(attachInfo, 0); 1211 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1212 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1213 host.fitSystemWindows(mFitSystemWindowsInsets); 1214 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1215 1216 } else { 1217 desiredWindowWidth = frame.width(); 1218 desiredWindowHeight = frame.height(); 1219 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1220 if (DEBUG_ORIENTATION) Log.v(TAG, 1221 "View " + host + " resized to: " + frame); 1222 mFullRedrawNeeded = true; 1223 mLayoutRequested = true; 1224 windowSizeMayChange = true; 1225 } 1226 } 1227 1228 if (viewVisibilityChanged) { 1229 attachInfo.mWindowVisibility = viewVisibility; 1230 host.dispatchWindowVisibilityChanged(viewVisibility); 1231 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1232 destroyHardwareResources(); 1233 } 1234 if (viewVisibility == View.GONE) { 1235 // After making a window gone, we will count it as being 1236 // shown for the first time the next time it gets focus. 1237 mHasHadWindowFocus = false; 1238 } 1239 } 1240 1241 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1242 getRunQueue().executeActions(attachInfo.mHandler); 1243 1244 boolean insetsChanged = false; 1245 1246 boolean layoutRequested = mLayoutRequested && !mStopped; 1247 if (layoutRequested) { 1248 1249 final Resources res = mView.getContext().getResources(); 1250 1251 if (mFirst) { 1252 // make sure touch mode code executes by setting cached value 1253 // to opposite of the added touch mode. 1254 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1255 ensureTouchModeLocally(mAddedTouchMode); 1256 } else { 1257 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1258 insetsChanged = true; 1259 } 1260 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1261 insetsChanged = true; 1262 } 1263 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1264 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1265 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1266 + mAttachInfo.mVisibleInsets); 1267 } 1268 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1269 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1270 windowSizeMayChange = true; 1271 1272 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1273 // NOTE -- system code, won't try to do compat mode. 1274 Point size = new Point(); 1275 mDisplay.getRealSize(size); 1276 desiredWindowWidth = size.x; 1277 desiredWindowHeight = size.y; 1278 } else { 1279 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1280 desiredWindowWidth = packageMetrics.widthPixels; 1281 desiredWindowHeight = packageMetrics.heightPixels; 1282 } 1283 } 1284 } 1285 1286 // Ask host how big it wants to be 1287 windowSizeMayChange |= measureHierarchy(host, lp, res, 1288 desiredWindowWidth, desiredWindowHeight); 1289 } 1290 1291 if (collectViewAttributes()) { 1292 params = lp; 1293 } 1294 if (attachInfo.mForceReportNewAttributes) { 1295 attachInfo.mForceReportNewAttributes = false; 1296 params = lp; 1297 } 1298 1299 if (mFirst || attachInfo.mViewVisibilityChanged) { 1300 attachInfo.mViewVisibilityChanged = false; 1301 int resizeMode = mSoftInputMode & 1302 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1303 // If we are in auto resize mode, then we need to determine 1304 // what mode to use now. 1305 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1306 final int N = attachInfo.mScrollContainers.size(); 1307 for (int i=0; i<N; i++) { 1308 if (attachInfo.mScrollContainers.get(i).isShown()) { 1309 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1310 } 1311 } 1312 if (resizeMode == 0) { 1313 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1314 } 1315 if ((lp.softInputMode & 1316 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1317 lp.softInputMode = (lp.softInputMode & 1318 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1319 resizeMode; 1320 params = lp; 1321 } 1322 } 1323 } 1324 1325 if (params != null) { 1326 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1327 if (!PixelFormat.formatHasAlpha(params.format)) { 1328 params.format = PixelFormat.TRANSLUCENT; 1329 } 1330 } 1331 mAttachInfo.mOverscanRequested = (params.flags 1332 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1333 } 1334 1335 if (mFitSystemWindowsRequested) { 1336 mFitSystemWindowsRequested = false; 1337 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1338 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1339 host.fitSystemWindows(mFitSystemWindowsInsets); 1340 if (mLayoutRequested) { 1341 // Short-circuit catching a new layout request here, so 1342 // we don't need to go through two layout passes when things 1343 // change due to fitting system windows, which can happen a lot. 1344 windowSizeMayChange |= measureHierarchy(host, lp, 1345 mView.getContext().getResources(), 1346 desiredWindowWidth, desiredWindowHeight); 1347 } 1348 } 1349 1350 if (layoutRequested) { 1351 // Clear this now, so that if anything requests a layout in the 1352 // rest of this function we will catch it and re-run a full 1353 // layout pass. 1354 mLayoutRequested = false; 1355 } 1356 1357 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1358 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1359 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1360 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1361 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1362 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1363 1364 final boolean computesInternalInsets = 1365 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1366 1367 boolean insetsPending = false; 1368 int relayoutResult = 0; 1369 1370 if (mFirst || windowShouldResize || insetsChanged || 1371 viewVisibilityChanged || params != null) { 1372 1373 if (viewVisibility == View.VISIBLE) { 1374 // If this window is giving internal insets to the window 1375 // manager, and it is being added or changing its visibility, 1376 // then we want to first give the window manager "fake" 1377 // insets to cause it to effectively ignore the content of 1378 // the window during layout. This avoids it briefly causing 1379 // other windows to resize/move based on the raw frame of the 1380 // window, waiting until we can finish laying out this window 1381 // and get back to the window manager with the ultimately 1382 // computed insets. 1383 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1384 } 1385 1386 if (mSurfaceHolder != null) { 1387 mSurfaceHolder.mSurfaceLock.lock(); 1388 mDrawingAllowed = true; 1389 } 1390 1391 boolean hwInitialized = false; 1392 boolean contentInsetsChanged = false; 1393 boolean hadSurface = mSurface.isValid(); 1394 1395 try { 1396 if (DEBUG_LAYOUT) { 1397 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1398 host.getMeasuredHeight() + ", params=" + params); 1399 } 1400 1401 final int surfaceGenerationId = mSurface.getGenerationId(); 1402 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1403 mWindowsAnimating |= 1404 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0; 1405 1406 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1407 + " overscan=" + mPendingOverscanInsets.toShortString() 1408 + " content=" + mPendingContentInsets.toShortString() 1409 + " visible=" + mPendingVisibleInsets.toShortString() 1410 + " surface=" + mSurface); 1411 1412 if (mPendingConfiguration.seq != 0) { 1413 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1414 + mPendingConfiguration); 1415 updateConfiguration(mPendingConfiguration, !mFirst); 1416 mPendingConfiguration.seq = 0; 1417 } 1418 1419 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1420 mAttachInfo.mOverscanInsets); 1421 contentInsetsChanged = !mPendingContentInsets.equals( 1422 mAttachInfo.mContentInsets); 1423 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1424 mAttachInfo.mVisibleInsets); 1425 if (contentInsetsChanged) { 1426 if (mWidth > 0 && mHeight > 0 && lp != null && 1427 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1428 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1429 mSurface != null && mSurface.isValid() && 1430 !mAttachInfo.mTurnOffWindowResizeAnim && 1431 mAttachInfo.mHardwareRenderer != null && 1432 mAttachInfo.mHardwareRenderer.isEnabled() && 1433 mAttachInfo.mHardwareRenderer.validate() && 1434 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1435 1436 disposeResizeBuffer(); 1437 1438 boolean completed = false; 1439 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1440 HardwareCanvas layerCanvas = null; 1441 try { 1442 if (mResizeBuffer == null) { 1443 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1444 mWidth, mHeight, false); 1445 } else if (mResizeBuffer.getWidth() != mWidth || 1446 mResizeBuffer.getHeight() != mHeight) { 1447 mResizeBuffer.resize(mWidth, mHeight); 1448 } 1449 // TODO: should handle create/resize failure 1450 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1451 final int restoreCount = layerCanvas.save(); 1452 1453 int yoff; 1454 final boolean scrolling = mScroller != null 1455 && mScroller.computeScrollOffset(); 1456 if (scrolling) { 1457 yoff = mScroller.getCurrY(); 1458 mScroller.abortAnimation(); 1459 } else { 1460 yoff = mScrollY; 1461 } 1462 1463 layerCanvas.translate(0, -yoff); 1464 if (mTranslator != null) { 1465 mTranslator.translateCanvas(layerCanvas); 1466 } 1467 1468 DisplayList displayList = mView.mDisplayList; 1469 if (displayList != null) { 1470 layerCanvas.drawDisplayList(displayList, null, 1471 DisplayList.FLAG_CLIP_CHILDREN); 1472 } else { 1473 mView.draw(layerCanvas); 1474 } 1475 1476 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1477 1478 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1479 mResizeBufferDuration = mView.getResources().getInteger( 1480 com.android.internal.R.integer.config_mediumAnimTime); 1481 completed = true; 1482 1483 layerCanvas.restoreToCount(restoreCount); 1484 } catch (OutOfMemoryError e) { 1485 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1486 } finally { 1487 if (mResizeBuffer != null) { 1488 mResizeBuffer.end(hwRendererCanvas); 1489 if (!completed) { 1490 mResizeBuffer.destroy(); 1491 mResizeBuffer = null; 1492 } 1493 } 1494 } 1495 } 1496 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1497 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1498 + mAttachInfo.mContentInsets); 1499 } 1500 if (overscanInsetsChanged) { 1501 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1502 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1503 + mAttachInfo.mOverscanInsets); 1504 // Need to relayout with content insets. 1505 contentInsetsChanged = true; 1506 } 1507 if (contentInsetsChanged || mLastSystemUiVisibility != 1508 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1509 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1510 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1511 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1512 mFitSystemWindowsRequested = false; 1513 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1514 host.fitSystemWindows(mFitSystemWindowsInsets); 1515 } 1516 if (visibleInsetsChanged) { 1517 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1518 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1519 + mAttachInfo.mVisibleInsets); 1520 } 1521 1522 if (!hadSurface) { 1523 if (mSurface.isValid()) { 1524 // If we are creating a new surface, then we need to 1525 // completely redraw it. Also, when we get to the 1526 // point of drawing it we will hold off and schedule 1527 // a new traversal instead. This is so we can tell the 1528 // window manager about all of the windows being displayed 1529 // before actually drawing them, so it can display then 1530 // all at once. 1531 newSurface = true; 1532 mFullRedrawNeeded = true; 1533 mPreviousTransparentRegion.setEmpty(); 1534 1535 if (mAttachInfo.mHardwareRenderer != null) { 1536 try { 1537 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1538 mHolder.getSurface()); 1539 } catch (Surface.OutOfResourcesException e) { 1540 handleOutOfResourcesException(e); 1541 return; 1542 } 1543 } 1544 } 1545 } else if (!mSurface.isValid()) { 1546 // If the surface has been removed, then reset the scroll 1547 // positions. 1548 if (mLastScrolledFocus != null) { 1549 mLastScrolledFocus.clear(); 1550 } 1551 mScrollY = mCurScrollY = 0; 1552 if (mScroller != null) { 1553 mScroller.abortAnimation(); 1554 } 1555 disposeResizeBuffer(); 1556 // Our surface is gone 1557 if (mAttachInfo.mHardwareRenderer != null && 1558 mAttachInfo.mHardwareRenderer.isEnabled()) { 1559 mAttachInfo.mHardwareRenderer.destroy(true); 1560 } 1561 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1562 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1563 mFullRedrawNeeded = true; 1564 try { 1565 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1566 } catch (Surface.OutOfResourcesException e) { 1567 handleOutOfResourcesException(e); 1568 return; 1569 } 1570 } 1571 } catch (RemoteException e) { 1572 } 1573 1574 if (DEBUG_ORIENTATION) Log.v( 1575 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1576 1577 attachInfo.mWindowLeft = frame.left; 1578 attachInfo.mWindowTop = frame.top; 1579 1580 // !!FIXME!! This next section handles the case where we did not get the 1581 // window size we asked for. We should avoid this by getting a maximum size from 1582 // the window session beforehand. 1583 if (mWidth != frame.width() || mHeight != frame.height()) { 1584 mWidth = frame.width(); 1585 mHeight = frame.height(); 1586 } 1587 1588 if (mSurfaceHolder != null) { 1589 // The app owns the surface; tell it about what is going on. 1590 if (mSurface.isValid()) { 1591 // XXX .copyFrom() doesn't work! 1592 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1593 mSurfaceHolder.mSurface = mSurface; 1594 } 1595 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1596 mSurfaceHolder.mSurfaceLock.unlock(); 1597 if (mSurface.isValid()) { 1598 if (!hadSurface) { 1599 mSurfaceHolder.ungetCallbacks(); 1600 1601 mIsCreating = true; 1602 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1603 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1604 if (callbacks != null) { 1605 for (SurfaceHolder.Callback c : callbacks) { 1606 c.surfaceCreated(mSurfaceHolder); 1607 } 1608 } 1609 surfaceChanged = true; 1610 } 1611 if (surfaceChanged) { 1612 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1613 lp.format, mWidth, mHeight); 1614 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1615 if (callbacks != null) { 1616 for (SurfaceHolder.Callback c : callbacks) { 1617 c.surfaceChanged(mSurfaceHolder, lp.format, 1618 mWidth, mHeight); 1619 } 1620 } 1621 } 1622 mIsCreating = false; 1623 } else if (hadSurface) { 1624 mSurfaceHolder.ungetCallbacks(); 1625 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1626 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1627 if (callbacks != null) { 1628 for (SurfaceHolder.Callback c : callbacks) { 1629 c.surfaceDestroyed(mSurfaceHolder); 1630 } 1631 } 1632 mSurfaceHolder.mSurfaceLock.lock(); 1633 try { 1634 mSurfaceHolder.mSurface = new Surface(); 1635 } finally { 1636 mSurfaceHolder.mSurfaceLock.unlock(); 1637 } 1638 } 1639 } 1640 1641 if (mAttachInfo.mHardwareRenderer != null && 1642 mAttachInfo.mHardwareRenderer.isEnabled()) { 1643 if (hwInitialized || windowShouldResize || 1644 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1645 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1646 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1647 if (!hwInitialized) { 1648 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1649 mFullRedrawNeeded = true; 1650 } 1651 } 1652 } 1653 1654 if (!mStopped) { 1655 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1656 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1657 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1658 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1659 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1660 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1661 1662 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1663 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1664 + " mHeight=" + mHeight 1665 + " measuredHeight=" + host.getMeasuredHeight() 1666 + " coveredInsetsChanged=" + contentInsetsChanged); 1667 1668 // Ask host how big it wants to be 1669 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1670 1671 // Implementation of weights from WindowManager.LayoutParams 1672 // We just grow the dimensions as needed and re-measure if 1673 // needs be 1674 int width = host.getMeasuredWidth(); 1675 int height = host.getMeasuredHeight(); 1676 boolean measureAgain = false; 1677 1678 if (lp.horizontalWeight > 0.0f) { 1679 width += (int) ((mWidth - width) * lp.horizontalWeight); 1680 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1681 MeasureSpec.EXACTLY); 1682 measureAgain = true; 1683 } 1684 if (lp.verticalWeight > 0.0f) { 1685 height += (int) ((mHeight - height) * lp.verticalWeight); 1686 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1687 MeasureSpec.EXACTLY); 1688 measureAgain = true; 1689 } 1690 1691 if (measureAgain) { 1692 if (DEBUG_LAYOUT) Log.v(TAG, 1693 "And hey let's measure once more: width=" + width 1694 + " height=" + height); 1695 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1696 } 1697 1698 layoutRequested = true; 1699 } 1700 } 1701 } else { 1702 // Not the first pass and no window/insets/visibility change but the window 1703 // may have moved and we need check that and if so to update the left and right 1704 // in the attach info. We translate only the window frame since on window move 1705 // the window manager tells us only for the new frame but the insets are the 1706 // same and we do not want to translate them more than once. 1707 1708 // TODO: Well, we are checking whether the frame has changed similarly 1709 // to how this is done for the insets. This is however incorrect since 1710 // the insets and the frame are translated. For example, the old frame 1711 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1712 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1713 // true since we are comparing a not translated value to a translated one. 1714 // This scenario is rare but we may want to fix that. 1715 1716 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1717 || attachInfo.mWindowTop != frame.top); 1718 if (windowMoved) { 1719 if (mTranslator != null) { 1720 mTranslator.translateRectInScreenToAppWinFrame(frame); 1721 } 1722 attachInfo.mWindowLeft = frame.left; 1723 attachInfo.mWindowTop = frame.top; 1724 } 1725 } 1726 1727 final boolean didLayout = layoutRequested && !mStopped; 1728 boolean triggerGlobalLayoutListener = didLayout 1729 || attachInfo.mRecomputeGlobalAttributes; 1730 if (didLayout) { 1731 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1732 1733 // By this point all views have been sized and positioned 1734 // We can compute the transparent area 1735 1736 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1737 // start out transparent 1738 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1739 host.getLocationInWindow(mTmpLocation); 1740 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1741 mTmpLocation[0] + host.mRight - host.mLeft, 1742 mTmpLocation[1] + host.mBottom - host.mTop); 1743 1744 host.gatherTransparentRegion(mTransparentRegion); 1745 if (mTranslator != null) { 1746 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1747 } 1748 1749 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1750 mPreviousTransparentRegion.set(mTransparentRegion); 1751 mFullRedrawNeeded = true; 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 final View focus = mView.findFocus(); 2600 if (focus == null) { 2601 return false; 2602 } 2603 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2604 if (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 { 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 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 String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4336 private static final boolean LOCAL_DEBUG = false; 4337 4338 // Assumed nominal width and height in millimeters of a touch navigation pad, 4339 // if no resolution information is available from the input system. 4340 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4341 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4342 4343 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4344 4345 // Tap timeout in milliseconds. 4346 private static final int TAP_TIMEOUT = 250; 4347 4348 // The maximum distance traveled for a gesture to be considered a tap in millimeters. 4349 private static final int TAP_SLOP_MILLIMETERS = 5; 4350 4351 // The nominal distance traveled to move by one unit. 4352 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4353 4354 // Minimum and maximum fling velocity in ticks per second. 4355 // The minimum velocity should be set such that we perform enough ticks per 4356 // second that the fling appears to be fluid. For example, if we set the minimum 4357 // to 2 ticks per second, then there may be up to half a second delay between the next 4358 // to last and last ticks which is noticeably discrete and jerky. This value should 4359 // probably not be set to anything less than about 4. 4360 // If fling accuracy is a problem then consider tuning the tick distance instead. 4361 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4362 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4363 4364 // Fling velocity decay factor applied after each new key is emitted. 4365 // This parameter controls the deceleration and overall duration of the fling. 4366 // The fling stops automatically when its velocity drops below the minimum 4367 // fling velocity defined above. 4368 private static final float FLING_TICK_DECAY = 0.8f; 4369 4370 /* The input device that we are tracking. */ 4371 4372 private int mCurrentDeviceId = -1; 4373 private int mCurrentSource; 4374 private boolean mCurrentDeviceSupported; 4375 4376 /* Configuration for the current input device. */ 4377 4378 // The tap timeout and scaled slop. 4379 private int mConfigTapTimeout; 4380 private float mConfigTapSlop; 4381 4382 // The scaled tick distance. A movement of this amount should generally translate 4383 // into a single dpad event in a given direction. 4384 private float mConfigTickDistance; 4385 4386 // The minimum and maximum scaled fling velocity. 4387 private float mConfigMinFlingVelocity; 4388 private float mConfigMaxFlingVelocity; 4389 4390 /* Tracking state. */ 4391 4392 // The velocity tracker for detecting flings. 4393 private VelocityTracker mVelocityTracker; 4394 4395 // The active pointer id, or -1 if none. 4396 private int mActivePointerId = -1; 4397 4398 // Time and location where tracking started. 4399 private long mStartTime; 4400 private float mStartX; 4401 private float mStartY; 4402 4403 // Most recently observed position. 4404 private float mLastX; 4405 private float mLastY; 4406 4407 // Accumulated movement delta since the last direction key was sent. 4408 private float mAccumulatedX; 4409 private float mAccumulatedY; 4410 4411 // Set to true if any movement was delivered to the app. 4412 // Implies that tap slop was exceeded. 4413 private boolean mConsumedMovement; 4414 4415 // The most recently sent key down event. 4416 // The keycode remains set until the direction changes or a fling ends 4417 // so that repeated key events may be generated as required. 4418 private long mPendingKeyDownTime; 4419 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4420 private int mPendingKeyRepeatCount; 4421 private int mPendingKeyMetaState; 4422 4423 // The current fling velocity while a fling is in progress. 4424 private boolean mFlinging; 4425 private float mFlingVelocity; 4426 4427 public SyntheticTouchNavigationHandler() { 4428 super(true); 4429 } 4430 4431 public void process(MotionEvent event) { 4432 // Update the current device information. 4433 final long time = event.getEventTime(); 4434 final int deviceId = event.getDeviceId(); 4435 final int source = event.getSource(); 4436 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4437 finishKeys(time); 4438 finishTracking(time); 4439 mCurrentDeviceId = deviceId; 4440 mCurrentSource = source; 4441 mCurrentDeviceSupported = false; 4442 InputDevice device = event.getDevice(); 4443 if (device != null) { 4444 // In order to support an input device, we must know certain 4445 // characteristics about it, such as its size and resolution. 4446 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4447 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4448 if (xRange != null && yRange != null) { 4449 mCurrentDeviceSupported = true; 4450 4451 // Infer the resolution if it not actually known. 4452 float xRes = xRange.getResolution(); 4453 if (xRes <= 0) { 4454 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4455 } 4456 float yRes = yRange.getResolution(); 4457 if (yRes <= 0) { 4458 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4459 } 4460 float nominalRes = (xRes + yRes) * 0.5f; 4461 4462 // Precompute all of the configuration thresholds we will need. 4463 mConfigTapTimeout = TAP_TIMEOUT; 4464 mConfigTapSlop = TAP_SLOP_MILLIMETERS * nominalRes; 4465 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4466 mConfigMinFlingVelocity = 4467 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4468 mConfigMaxFlingVelocity = 4469 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4470 4471 if (LOCAL_DEBUG) { 4472 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4473 + " (" + Integer.toHexString(mCurrentSource) + "): " 4474 + "mConfigTapTimeout=" + mConfigTapTimeout 4475 + ", mConfigTapSlop=" + mConfigTapSlop 4476 + ", mConfigTickDistance=" + mConfigTickDistance 4477 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4478 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4479 } 4480 } 4481 } 4482 } 4483 if (!mCurrentDeviceSupported) { 4484 return; 4485 } 4486 4487 // Handle the event. 4488 final int action = event.getActionMasked(); 4489 switch (action) { 4490 case MotionEvent.ACTION_DOWN: { 4491 boolean caughtFling = mFlinging; 4492 finishKeys(time); 4493 finishTracking(time); 4494 mActivePointerId = event.getPointerId(0); 4495 mVelocityTracker = VelocityTracker.obtain(); 4496 mVelocityTracker.addMovement(event); 4497 mStartTime = time; 4498 mStartX = event.getX(); 4499 mStartY = event.getY(); 4500 mLastX = mStartX; 4501 mLastY = mStartY; 4502 mAccumulatedX = 0; 4503 mAccumulatedY = 0; 4504 4505 // If we caught a fling, then pretend that the tap slop has already 4506 // been exceeded to suppress taps whose only purpose is to stop the fling. 4507 mConsumedMovement = caughtFling; 4508 break; 4509 } 4510 4511 case MotionEvent.ACTION_MOVE: 4512 case MotionEvent.ACTION_UP: { 4513 if (mActivePointerId < 0) { 4514 break; 4515 } 4516 final int index = event.findPointerIndex(mActivePointerId); 4517 if (index < 0) { 4518 finishKeys(time); 4519 finishTracking(time); 4520 break; 4521 } 4522 4523 mVelocityTracker.addMovement(event); 4524 final float x = event.getX(index); 4525 final float y = event.getY(index); 4526 mAccumulatedX += x - mLastX; 4527 mAccumulatedY += y - mLastY; 4528 mLastX = x; 4529 mLastY = y; 4530 4531 // Consume any accumulated movement so far. 4532 final int metaState = event.getMetaState(); 4533 consumeAccumulatedMovement(time, metaState); 4534 4535 // Detect taps and flings. 4536 if (action == MotionEvent.ACTION_UP) { 4537 if (!mConsumedMovement 4538 && Math.hypot(mLastX - mStartX, mLastY - mStartY) < mConfigTapSlop 4539 && time <= mStartTime + mConfigTapTimeout) { 4540 // It's a tap! 4541 finishKeys(time); 4542 sendKeyDownOrRepeat(time, KeyEvent.KEYCODE_DPAD_CENTER, metaState); 4543 sendKeyUp(time); 4544 } else if (mConsumedMovement 4545 && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4546 // It might be a fling. 4547 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4548 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4549 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4550 if (!startFling(time, vx, vy)) { 4551 finishKeys(time); 4552 } 4553 } 4554 finishTracking(time); 4555 } 4556 break; 4557 } 4558 4559 case MotionEvent.ACTION_CANCEL: { 4560 finishKeys(time); 4561 finishTracking(time); 4562 break; 4563 } 4564 } 4565 } 4566 4567 public void cancel(MotionEvent event) { 4568 if (mCurrentDeviceId == event.getDeviceId() 4569 && mCurrentSource == event.getSource()) { 4570 final long time = event.getEventTime(); 4571 finishKeys(time); 4572 finishTracking(time); 4573 } 4574 } 4575 4576 private void finishKeys(long time) { 4577 cancelFling(); 4578 sendKeyUp(time); 4579 } 4580 4581 private void finishTracking(long time) { 4582 if (mActivePointerId >= 0) { 4583 mActivePointerId = -1; 4584 mVelocityTracker.recycle(); 4585 mVelocityTracker = null; 4586 } 4587 } 4588 4589 private void consumeAccumulatedMovement(long time, int metaState) { 4590 final float absX = Math.abs(mAccumulatedX); 4591 final float absY = Math.abs(mAccumulatedY); 4592 if (absX >= absY) { 4593 if (absX >= mConfigTickDistance) { 4594 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4595 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4596 mAccumulatedY = 0; 4597 mConsumedMovement = true; 4598 } 4599 } else { 4600 if (absY >= mConfigTickDistance) { 4601 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4602 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4603 mAccumulatedX = 0; 4604 mConsumedMovement = true; 4605 } 4606 } 4607 } 4608 4609 private float consumeAccumulatedMovement(long time, int metaState, 4610 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4611 while (accumulator <= -mConfigTickDistance) { 4612 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4613 accumulator += mConfigTickDistance; 4614 } 4615 while (accumulator >= mConfigTickDistance) { 4616 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4617 accumulator -= mConfigTickDistance; 4618 } 4619 return accumulator; 4620 } 4621 4622 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4623 if (mPendingKeyCode != keyCode) { 4624 sendKeyUp(time); 4625 mPendingKeyDownTime = time; 4626 mPendingKeyCode = keyCode; 4627 mPendingKeyRepeatCount = 0; 4628 } else { 4629 mPendingKeyRepeatCount += 1; 4630 } 4631 mPendingKeyMetaState = metaState; 4632 4633 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4634 // but it doesn't quite make sense when simulating the events in this way. 4635 if (LOCAL_DEBUG) { 4636 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4637 + ", repeatCount=" + mPendingKeyRepeatCount 4638 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4639 } 4640 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4641 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4642 mPendingKeyMetaState, mCurrentDeviceId, 4643 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4644 } 4645 4646 private void sendKeyUp(long time) { 4647 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4648 if (LOCAL_DEBUG) { 4649 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4650 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4651 } 4652 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4653 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4654 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4655 mCurrentSource)); 4656 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4657 } 4658 } 4659 4660 private boolean startFling(long time, float vx, float vy) { 4661 if (LOCAL_DEBUG) { 4662 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4663 + ", min=" + mConfigMinFlingVelocity); 4664 } 4665 4666 // Flings must be oriented in the same direction as the preceding movements. 4667 switch (mPendingKeyCode) { 4668 case KeyEvent.KEYCODE_DPAD_LEFT: 4669 if (-vx >= mConfigMinFlingVelocity 4670 && Math.abs(vy) < mConfigMinFlingVelocity) { 4671 mFlingVelocity = -vx; 4672 break; 4673 } 4674 return false; 4675 4676 case KeyEvent.KEYCODE_DPAD_RIGHT: 4677 if (vx >= mConfigMinFlingVelocity 4678 && Math.abs(vy) < mConfigMinFlingVelocity) { 4679 mFlingVelocity = vx; 4680 break; 4681 } 4682 return false; 4683 4684 case KeyEvent.KEYCODE_DPAD_UP: 4685 if (-vy >= mConfigMinFlingVelocity 4686 && Math.abs(vx) < mConfigMinFlingVelocity) { 4687 mFlingVelocity = -vy; 4688 break; 4689 } 4690 return false; 4691 4692 case KeyEvent.KEYCODE_DPAD_DOWN: 4693 if (vy >= mConfigMinFlingVelocity 4694 && Math.abs(vx) < mConfigMinFlingVelocity) { 4695 mFlingVelocity = vy; 4696 break; 4697 } 4698 return false; 4699 } 4700 4701 // Post the first fling event. 4702 mFlinging = postFling(time); 4703 return mFlinging; 4704 } 4705 4706 private boolean postFling(long time) { 4707 // The idea here is to estimate the time when the pointer would have 4708 // traveled one tick distance unit given the current fling velocity. 4709 // This effect creates continuity of motion. 4710 if (mFlingVelocity >= mConfigMinFlingVelocity) { 4711 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 4712 postAtTime(mFlingRunnable, time + delay); 4713 if (LOCAL_DEBUG) { 4714 Log.d(LOCAL_TAG, "Posted fling: velocity=" 4715 + mFlingVelocity + ", delay=" + delay 4716 + ", keyCode=" + mPendingKeyCode); 4717 } 4718 return true; 4719 } 4720 return false; 4721 } 4722 4723 private void cancelFling() { 4724 if (mFlinging) { 4725 removeCallbacks(mFlingRunnable); 4726 mFlinging = false; 4727 } 4728 } 4729 4730 private final Runnable mFlingRunnable = new Runnable() { 4731 @Override 4732 public void run() { 4733 final long time = SystemClock.uptimeMillis(); 4734 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 4735 mFlingVelocity *= FLING_TICK_DECAY; 4736 if (!postFling(time)) { 4737 mFlinging = false; 4738 finishKeys(time); 4739 } 4740 } 4741 }; 4742 } 4743 4744 /** 4745 * Returns true if the key is used for keyboard navigation. 4746 * @param keyEvent The key event. 4747 * @return True if the key is used for keyboard navigation. 4748 */ 4749 private static boolean isNavigationKey(KeyEvent keyEvent) { 4750 switch (keyEvent.getKeyCode()) { 4751 case KeyEvent.KEYCODE_DPAD_LEFT: 4752 case KeyEvent.KEYCODE_DPAD_RIGHT: 4753 case KeyEvent.KEYCODE_DPAD_UP: 4754 case KeyEvent.KEYCODE_DPAD_DOWN: 4755 case KeyEvent.KEYCODE_DPAD_CENTER: 4756 case KeyEvent.KEYCODE_PAGE_UP: 4757 case KeyEvent.KEYCODE_PAGE_DOWN: 4758 case KeyEvent.KEYCODE_MOVE_HOME: 4759 case KeyEvent.KEYCODE_MOVE_END: 4760 case KeyEvent.KEYCODE_TAB: 4761 case KeyEvent.KEYCODE_SPACE: 4762 case KeyEvent.KEYCODE_ENTER: 4763 return true; 4764 } 4765 return false; 4766 } 4767 4768 /** 4769 * Returns true if the key is used for typing. 4770 * @param keyEvent The key event. 4771 * @return True if the key is used for typing. 4772 */ 4773 private static boolean isTypingKey(KeyEvent keyEvent) { 4774 return keyEvent.getUnicodeChar() > 0; 4775 } 4776 4777 /** 4778 * See if the key event means we should leave touch mode (and leave touch mode if so). 4779 * @param event The key event. 4780 * @return Whether this key event should be consumed (meaning the act of 4781 * leaving touch mode alone is considered the event). 4782 */ 4783 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 4784 // Only relevant in touch mode. 4785 if (!mAttachInfo.mInTouchMode) { 4786 return false; 4787 } 4788 4789 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 4790 final int action = event.getAction(); 4791 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 4792 return false; 4793 } 4794 4795 // Don't leave touch mode if the IME told us not to. 4796 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 4797 return false; 4798 } 4799 4800 // If the key can be used for keyboard navigation then leave touch mode 4801 // and select a focused view if needed (in ensureTouchMode). 4802 // When a new focused view is selected, we consume the navigation key because 4803 // navigation doesn't make much sense unless a view already has focus so 4804 // the key's purpose is to set focus. 4805 if (isNavigationKey(event)) { 4806 return ensureTouchMode(false); 4807 } 4808 4809 // If the key can be used for typing then leave touch mode 4810 // and select a focused view if needed (in ensureTouchMode). 4811 // Always allow the view to process the typing key. 4812 if (isTypingKey(event)) { 4813 ensureTouchMode(false); 4814 return false; 4815 } 4816 4817 return false; 4818 } 4819 4820 /* drag/drop */ 4821 void setLocalDragState(Object obj) { 4822 mLocalDragState = obj; 4823 } 4824 4825 private void handleDragEvent(DragEvent event) { 4826 // From the root, only drag start/end/location are dispatched. entered/exited 4827 // are determined and dispatched by the viewgroup hierarchy, who then report 4828 // that back here for ultimate reporting back to the framework. 4829 if (mView != null && mAdded) { 4830 final int what = event.mAction; 4831 4832 if (what == DragEvent.ACTION_DRAG_EXITED) { 4833 // A direct EXITED event means that the window manager knows we've just crossed 4834 // a window boundary, so the current drag target within this one must have 4835 // just been exited. Send it the usual notifications and then we're done 4836 // for now. 4837 mView.dispatchDragEvent(event); 4838 } else { 4839 // Cache the drag description when the operation starts, then fill it in 4840 // on subsequent calls as a convenience 4841 if (what == DragEvent.ACTION_DRAG_STARTED) { 4842 mCurrentDragView = null; // Start the current-recipient tracking 4843 mDragDescription = event.mClipDescription; 4844 } else { 4845 event.mClipDescription = mDragDescription; 4846 } 4847 4848 // For events with a [screen] location, translate into window coordinates 4849 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 4850 mDragPoint.set(event.mX, event.mY); 4851 if (mTranslator != null) { 4852 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 4853 } 4854 4855 if (mCurScrollY != 0) { 4856 mDragPoint.offset(0, mCurScrollY); 4857 } 4858 4859 event.mX = mDragPoint.x; 4860 event.mY = mDragPoint.y; 4861 } 4862 4863 // Remember who the current drag target is pre-dispatch 4864 final View prevDragView = mCurrentDragView; 4865 4866 // Now dispatch the drag/drop event 4867 boolean result = mView.dispatchDragEvent(event); 4868 4869 // If we changed apparent drag target, tell the OS about it 4870 if (prevDragView != mCurrentDragView) { 4871 try { 4872 if (prevDragView != null) { 4873 mWindowSession.dragRecipientExited(mWindow); 4874 } 4875 if (mCurrentDragView != null) { 4876 mWindowSession.dragRecipientEntered(mWindow); 4877 } 4878 } catch (RemoteException e) { 4879 Slog.e(TAG, "Unable to note drag target change"); 4880 } 4881 } 4882 4883 // Report the drop result when we're done 4884 if (what == DragEvent.ACTION_DROP) { 4885 mDragDescription = null; 4886 try { 4887 Log.i(TAG, "Reporting drop result: " + result); 4888 mWindowSession.reportDropResult(mWindow, result); 4889 } catch (RemoteException e) { 4890 Log.e(TAG, "Unable to report drop result"); 4891 } 4892 } 4893 4894 // When the drag operation ends, release any local state object 4895 // that may have been in use 4896 if (what == DragEvent.ACTION_DRAG_ENDED) { 4897 setLocalDragState(null); 4898 } 4899 } 4900 } 4901 event.recycle(); 4902 } 4903 4904 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4905 if (mSeq != args.seq) { 4906 // The sequence has changed, so we need to update our value and make 4907 // sure to do a traversal afterward so the window manager is given our 4908 // most recent data. 4909 mSeq = args.seq; 4910 mAttachInfo.mForceReportNewAttributes = true; 4911 scheduleTraversals(); 4912 } 4913 if (mView == null) return; 4914 if (args.localChanges != 0) { 4915 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4916 } 4917 if (mAttachInfo != null) { 4918 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4919 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4920 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4921 mView.dispatchSystemUiVisibilityChanged(visibility); 4922 } 4923 } 4924 } 4925 4926 public void handleDispatchDoneAnimating() { 4927 if (mWindowsAnimating) { 4928 mWindowsAnimating = false; 4929 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 4930 scheduleTraversals(); 4931 } 4932 } 4933 } 4934 4935 public void getLastTouchPoint(Point outLocation) { 4936 outLocation.x = (int) mLastTouchPoint.x; 4937 outLocation.y = (int) mLastTouchPoint.y; 4938 } 4939 4940 public void setDragFocus(View newDragTarget) { 4941 if (mCurrentDragView != newDragTarget) { 4942 mCurrentDragView = newDragTarget; 4943 } 4944 } 4945 4946 private AudioManager getAudioManager() { 4947 if (mView == null) { 4948 throw new IllegalStateException("getAudioManager called when there is no mView"); 4949 } 4950 if (mAudioManager == null) { 4951 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4952 } 4953 return mAudioManager; 4954 } 4955 4956 public AccessibilityInteractionController getAccessibilityInteractionController() { 4957 if (mView == null) { 4958 throw new IllegalStateException("getAccessibilityInteractionController" 4959 + " called when there is no mView"); 4960 } 4961 if (mAccessibilityInteractionController == null) { 4962 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4963 } 4964 return mAccessibilityInteractionController; 4965 } 4966 4967 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4968 boolean insetsPending) throws RemoteException { 4969 4970 float appScale = mAttachInfo.mApplicationScale; 4971 boolean restore = false; 4972 if (params != null && mTranslator != null) { 4973 restore = true; 4974 params.backup(); 4975 mTranslator.translateWindowLayout(params); 4976 } 4977 if (params != null) { 4978 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4979 } 4980 mPendingConfiguration.seq = 0; 4981 //Log.d(TAG, ">>>>>> CALLING relayout"); 4982 if (params != null && mOrigWindowType != params.type) { 4983 // For compatibility with old apps, don't crash here. 4984 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4985 Slog.w(TAG, "Window type can not be changed after " 4986 + "the window is added; ignoring change of " + mView); 4987 params.type = mOrigWindowType; 4988 } 4989 } 4990 int relayoutResult = mWindowSession.relayout( 4991 mWindow, mSeq, params, 4992 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4993 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4994 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4995 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4996 mPendingConfiguration, mSurface); 4997 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4998 if (restore) { 4999 params.restore(); 5000 } 5001 5002 if (mTranslator != null) { 5003 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5004 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5005 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5006 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5007 } 5008 return relayoutResult; 5009 } 5010 5011 /** 5012 * {@inheritDoc} 5013 */ 5014 public void playSoundEffect(int effectId) { 5015 checkThread(); 5016 5017 if (mMediaDisabled) { 5018 return; 5019 } 5020 5021 try { 5022 final AudioManager audioManager = getAudioManager(); 5023 5024 switch (effectId) { 5025 case SoundEffectConstants.CLICK: 5026 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5027 return; 5028 case SoundEffectConstants.NAVIGATION_DOWN: 5029 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5030 return; 5031 case SoundEffectConstants.NAVIGATION_LEFT: 5032 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5033 return; 5034 case SoundEffectConstants.NAVIGATION_RIGHT: 5035 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5036 return; 5037 case SoundEffectConstants.NAVIGATION_UP: 5038 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5039 return; 5040 default: 5041 throw new IllegalArgumentException("unknown effect id " + effectId + 5042 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5043 } 5044 } catch (IllegalStateException e) { 5045 // Exception thrown by getAudioManager() when mView is null 5046 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5047 e.printStackTrace(); 5048 } 5049 } 5050 5051 /** 5052 * {@inheritDoc} 5053 */ 5054 public boolean performHapticFeedback(int effectId, boolean always) { 5055 try { 5056 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5057 } catch (RemoteException e) { 5058 return false; 5059 } 5060 } 5061 5062 /** 5063 * {@inheritDoc} 5064 */ 5065 public View focusSearch(View focused, int direction) { 5066 checkThread(); 5067 if (!(mView instanceof ViewGroup)) { 5068 return null; 5069 } 5070 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5071 } 5072 5073 public void debug() { 5074 mView.debug(); 5075 } 5076 5077 public void dumpGfxInfo(int[] info) { 5078 info[0] = info[1] = 0; 5079 if (mView != null) { 5080 getGfxInfo(mView, info); 5081 } 5082 } 5083 5084 private static void getGfxInfo(View view, int[] info) { 5085 DisplayList displayList = view.mDisplayList; 5086 info[0]++; 5087 if (displayList != null) { 5088 info[1] += displayList.getSize(); 5089 } 5090 5091 if (view instanceof ViewGroup) { 5092 ViewGroup group = (ViewGroup) view; 5093 5094 int count = group.getChildCount(); 5095 for (int i = 0; i < count; i++) { 5096 getGfxInfo(group.getChildAt(i), info); 5097 } 5098 } 5099 } 5100 5101 public void die(boolean immediate) { 5102 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5103 // done by dispatchDetachedFromWindow will cause havoc on return. 5104 if (immediate && !mIsInTraversal) { 5105 doDie(); 5106 } else { 5107 if (!mIsDrawing) { 5108 destroyHardwareRenderer(); 5109 } else { 5110 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5111 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5112 } 5113 mHandler.sendEmptyMessage(MSG_DIE); 5114 } 5115 } 5116 5117 void doDie() { 5118 checkThread(); 5119 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5120 synchronized (this) { 5121 if (mAdded) { 5122 dispatchDetachedFromWindow(); 5123 } 5124 5125 if (mAdded && !mFirst) { 5126 invalidateDisplayLists(); 5127 destroyHardwareRenderer(); 5128 5129 if (mView != null) { 5130 int viewVisibility = mView.getVisibility(); 5131 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5132 if (mWindowAttributesChanged || viewVisibilityChanged) { 5133 // If layout params have been changed, first give them 5134 // to the window manager to make sure it has the correct 5135 // animation info. 5136 try { 5137 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5138 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5139 mWindowSession.finishDrawing(mWindow); 5140 } 5141 } catch (RemoteException e) { 5142 } 5143 } 5144 5145 mSurface.release(); 5146 } 5147 } 5148 5149 mAdded = false; 5150 } 5151 } 5152 5153 public void requestUpdateConfiguration(Configuration config) { 5154 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5155 mHandler.sendMessage(msg); 5156 } 5157 5158 public void loadSystemProperties() { 5159 mHandler.post(new Runnable() { 5160 @Override 5161 public void run() { 5162 // Profiling 5163 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5164 profileRendering(mAttachInfo.mHasWindowFocus); 5165 5166 // Media (used by sound effects) 5167 mMediaDisabled = SystemProperties.getBoolean(PROPERTY_MEDIA_DISABLED, false); 5168 5169 // Hardware rendering 5170 if (mAttachInfo.mHardwareRenderer != null) { 5171 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 5172 invalidate(); 5173 } 5174 } 5175 5176 // Layout debugging 5177 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5178 if (layout != mAttachInfo.mDebugLayout) { 5179 mAttachInfo.mDebugLayout = layout; 5180 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5181 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5182 } 5183 } 5184 } 5185 }); 5186 } 5187 5188 private void destroyHardwareRenderer() { 5189 AttachInfo attachInfo = mAttachInfo; 5190 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 5191 5192 if (hardwareRenderer != null) { 5193 if (mView != null) { 5194 hardwareRenderer.destroyHardwareResources(mView); 5195 } 5196 hardwareRenderer.destroy(true); 5197 hardwareRenderer.setRequested(false); 5198 5199 attachInfo.mHardwareRenderer = null; 5200 attachInfo.mHardwareAccelerated = false; 5201 } 5202 } 5203 5204 public void dispatchFinishInputConnection(InputConnection connection) { 5205 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5206 mHandler.sendMessage(msg); 5207 } 5208 5209 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5210 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5211 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5212 + " contentInsets=" + contentInsets.toShortString() 5213 + " visibleInsets=" + visibleInsets.toShortString() 5214 + " reportDraw=" + reportDraw); 5215 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5216 if (mTranslator != null) { 5217 mTranslator.translateRectInScreenToAppWindow(frame); 5218 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5219 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5220 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5221 } 5222 SomeArgs args = SomeArgs.obtain(); 5223 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5224 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5225 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5226 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5227 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5228 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5229 msg.obj = args; 5230 mHandler.sendMessage(msg); 5231 } 5232 5233 public void dispatchMoved(int newX, int newY) { 5234 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5235 if (mTranslator != null) { 5236 PointF point = new PointF(newX, newY); 5237 mTranslator.translatePointInScreenToAppWindow(point); 5238 newX = (int) (point.x + 0.5); 5239 newY = (int) (point.y + 0.5); 5240 } 5241 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5242 mHandler.sendMessage(msg); 5243 } 5244 5245 /** 5246 * Represents a pending input event that is waiting in a queue. 5247 * 5248 * Input events are processed in serial order by the timestamp specified by 5249 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5250 * one input event to the application at a time and waits for the application 5251 * to finish handling it before delivering the next one. 5252 * 5253 * However, because the application or IME can synthesize and inject multiple 5254 * key events at a time without going through the input dispatcher, we end up 5255 * needing a queue on the application's side. 5256 */ 5257 private static final class QueuedInputEvent { 5258 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5259 public static final int FLAG_DEFERRED = 1 << 1; 5260 public static final int FLAG_FINISHED = 1 << 2; 5261 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5262 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5263 5264 public QueuedInputEvent mNext; 5265 5266 public InputEvent mEvent; 5267 public InputEventReceiver mReceiver; 5268 public int mFlags; 5269 5270 public boolean shouldSkipIme() { 5271 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5272 return true; 5273 } 5274 return mEvent instanceof MotionEvent 5275 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5276 } 5277 } 5278 5279 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5280 InputEventReceiver receiver, int flags) { 5281 QueuedInputEvent q = mQueuedInputEventPool; 5282 if (q != null) { 5283 mQueuedInputEventPoolSize -= 1; 5284 mQueuedInputEventPool = q.mNext; 5285 q.mNext = null; 5286 } else { 5287 q = new QueuedInputEvent(); 5288 } 5289 5290 q.mEvent = event; 5291 q.mReceiver = receiver; 5292 q.mFlags = flags; 5293 return q; 5294 } 5295 5296 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5297 q.mEvent = null; 5298 q.mReceiver = null; 5299 5300 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5301 mQueuedInputEventPoolSize += 1; 5302 q.mNext = mQueuedInputEventPool; 5303 mQueuedInputEventPool = q; 5304 } 5305 } 5306 5307 void enqueueInputEvent(InputEvent event) { 5308 enqueueInputEvent(event, null, 0, false); 5309 } 5310 5311 void enqueueInputEvent(InputEvent event, 5312 InputEventReceiver receiver, int flags, boolean processImmediately) { 5313 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5314 5315 // Always enqueue the input event in order, regardless of its time stamp. 5316 // We do this because the application or the IME may inject key events 5317 // in response to touch events and we want to ensure that the injected keys 5318 // are processed in the order they were received and we cannot trust that 5319 // the time stamp of injected events are monotonic. 5320 QueuedInputEvent last = mPendingInputEventTail; 5321 if (last == null) { 5322 mPendingInputEventHead = q; 5323 mPendingInputEventTail = q; 5324 } else { 5325 last.mNext = q; 5326 mPendingInputEventTail = q; 5327 } 5328 mPendingInputEventCount += 1; 5329 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5330 mPendingInputEventCount); 5331 5332 if (processImmediately) { 5333 doProcessInputEvents(); 5334 } else { 5335 scheduleProcessInputEvents(); 5336 } 5337 } 5338 5339 private void scheduleProcessInputEvents() { 5340 if (!mProcessInputEventsScheduled) { 5341 mProcessInputEventsScheduled = true; 5342 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5343 msg.setAsynchronous(true); 5344 mHandler.sendMessage(msg); 5345 } 5346 } 5347 5348 void doProcessInputEvents() { 5349 // Deliver all pending input events in the queue. 5350 while (mPendingInputEventHead != null) { 5351 QueuedInputEvent q = mPendingInputEventHead; 5352 mPendingInputEventHead = q.mNext; 5353 if (mPendingInputEventHead == null) { 5354 mPendingInputEventTail = null; 5355 } 5356 q.mNext = null; 5357 5358 mPendingInputEventCount -= 1; 5359 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5360 mPendingInputEventCount); 5361 5362 deliverInputEvent(q); 5363 } 5364 5365 // We are done processing all input events that we can process right now 5366 // so we can clear the pending flag immediately. 5367 if (mProcessInputEventsScheduled) { 5368 mProcessInputEventsScheduled = false; 5369 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5370 } 5371 } 5372 5373 private void deliverInputEvent(QueuedInputEvent q) { 5374 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 5375 try { 5376 if (mInputEventConsistencyVerifier != null) { 5377 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5378 } 5379 5380 InputStage stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5381 if (stage != null) { 5382 stage.deliver(q); 5383 } else { 5384 finishInputEvent(q); 5385 } 5386 } finally { 5387 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 5388 } 5389 } 5390 5391 private void finishInputEvent(QueuedInputEvent q) { 5392 if (q.mReceiver != null) { 5393 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5394 q.mReceiver.finishInputEvent(q.mEvent, handled); 5395 } else { 5396 q.mEvent.recycleIfNeededAfterDispatch(); 5397 } 5398 5399 recycleQueuedInputEvent(q); 5400 } 5401 5402 static boolean isTerminalInputEvent(InputEvent event) { 5403 if (event instanceof KeyEvent) { 5404 final KeyEvent keyEvent = (KeyEvent)event; 5405 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5406 } else { 5407 final MotionEvent motionEvent = (MotionEvent)event; 5408 final int action = motionEvent.getAction(); 5409 return action == MotionEvent.ACTION_UP 5410 || action == MotionEvent.ACTION_CANCEL 5411 || action == MotionEvent.ACTION_HOVER_EXIT; 5412 } 5413 } 5414 5415 void scheduleConsumeBatchedInput() { 5416 if (!mConsumeBatchedInputScheduled) { 5417 mConsumeBatchedInputScheduled = true; 5418 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5419 mConsumedBatchedInputRunnable, null); 5420 } 5421 } 5422 5423 void unscheduleConsumeBatchedInput() { 5424 if (mConsumeBatchedInputScheduled) { 5425 mConsumeBatchedInputScheduled = false; 5426 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5427 mConsumedBatchedInputRunnable, null); 5428 } 5429 } 5430 5431 void doConsumeBatchedInput(long frameTimeNanos) { 5432 if (mConsumeBatchedInputScheduled) { 5433 mConsumeBatchedInputScheduled = false; 5434 if (mInputEventReceiver != null) { 5435 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 5436 } 5437 doProcessInputEvents(); 5438 } 5439 } 5440 5441 final class TraversalRunnable implements Runnable { 5442 @Override 5443 public void run() { 5444 doTraversal(); 5445 } 5446 } 5447 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5448 5449 final class WindowInputEventReceiver extends InputEventReceiver { 5450 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5451 super(inputChannel, looper); 5452 } 5453 5454 @Override 5455 public void onInputEvent(InputEvent event) { 5456 enqueueInputEvent(event, this, 0, true); 5457 } 5458 5459 @Override 5460 public void onBatchedInputEventPending() { 5461 scheduleConsumeBatchedInput(); 5462 } 5463 5464 @Override 5465 public void dispose() { 5466 unscheduleConsumeBatchedInput(); 5467 super.dispose(); 5468 } 5469 } 5470 WindowInputEventReceiver mInputEventReceiver; 5471 5472 final class ConsumeBatchedInputRunnable implements Runnable { 5473 @Override 5474 public void run() { 5475 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5476 } 5477 } 5478 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5479 new ConsumeBatchedInputRunnable(); 5480 boolean mConsumeBatchedInputScheduled; 5481 5482 final class InvalidateOnAnimationRunnable implements Runnable { 5483 private boolean mPosted; 5484 private ArrayList<View> mViews = new ArrayList<View>(); 5485 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5486 new ArrayList<AttachInfo.InvalidateInfo>(); 5487 private View[] mTempViews; 5488 private AttachInfo.InvalidateInfo[] mTempViewRects; 5489 5490 public void addView(View view) { 5491 synchronized (this) { 5492 mViews.add(view); 5493 postIfNeededLocked(); 5494 } 5495 } 5496 5497 public void addViewRect(AttachInfo.InvalidateInfo info) { 5498 synchronized (this) { 5499 mViewRects.add(info); 5500 postIfNeededLocked(); 5501 } 5502 } 5503 5504 public void removeView(View view) { 5505 synchronized (this) { 5506 mViews.remove(view); 5507 5508 for (int i = mViewRects.size(); i-- > 0; ) { 5509 AttachInfo.InvalidateInfo info = mViewRects.get(i); 5510 if (info.target == view) { 5511 mViewRects.remove(i); 5512 info.recycle(); 5513 } 5514 } 5515 5516 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 5517 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 5518 mPosted = false; 5519 } 5520 } 5521 } 5522 5523 @Override 5524 public void run() { 5525 final int viewCount; 5526 final int viewRectCount; 5527 synchronized (this) { 5528 mPosted = false; 5529 5530 viewCount = mViews.size(); 5531 if (viewCount != 0) { 5532 mTempViews = mViews.toArray(mTempViews != null 5533 ? mTempViews : new View[viewCount]); 5534 mViews.clear(); 5535 } 5536 5537 viewRectCount = mViewRects.size(); 5538 if (viewRectCount != 0) { 5539 mTempViewRects = mViewRects.toArray(mTempViewRects != null 5540 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 5541 mViewRects.clear(); 5542 } 5543 } 5544 5545 for (int i = 0; i < viewCount; i++) { 5546 mTempViews[i].invalidate(); 5547 mTempViews[i] = null; 5548 } 5549 5550 for (int i = 0; i < viewRectCount; i++) { 5551 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 5552 info.target.invalidate(info.left, info.top, info.right, info.bottom); 5553 info.recycle(); 5554 } 5555 } 5556 5557 private void postIfNeededLocked() { 5558 if (!mPosted) { 5559 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 5560 mPosted = true; 5561 } 5562 } 5563 } 5564 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 5565 new InvalidateOnAnimationRunnable(); 5566 5567 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 5568 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 5569 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5570 } 5571 5572 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 5573 long delayMilliseconds) { 5574 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 5575 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5576 } 5577 5578 public void dispatchInvalidateOnAnimation(View view) { 5579 mInvalidateOnAnimationRunnable.addView(view); 5580 } 5581 5582 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 5583 mInvalidateOnAnimationRunnable.addViewRect(info); 5584 } 5585 5586 public void enqueueDisplayList(DisplayList displayList) { 5587 mDisplayLists.add(displayList); 5588 } 5589 5590 public void cancelInvalidate(View view) { 5591 mHandler.removeMessages(MSG_INVALIDATE, view); 5592 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 5593 // them to the pool 5594 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 5595 mInvalidateOnAnimationRunnable.removeView(view); 5596 } 5597 5598 public void dispatchKey(KeyEvent event) { 5599 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 5600 msg.setAsynchronous(true); 5601 mHandler.sendMessage(msg); 5602 } 5603 5604 public void dispatchKeyFromIme(KeyEvent event) { 5605 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 5606 msg.setAsynchronous(true); 5607 mHandler.sendMessage(msg); 5608 } 5609 5610 public void dispatchUnhandledKey(KeyEvent event) { 5611 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 5612 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5613 final int keyCode = event.getKeyCode(); 5614 final int metaState = event.getMetaState(); 5615 5616 // Check for fallback actions specified by the key character map. 5617 KeyCharacterMap.FallbackAction fallbackAction = 5618 kcm.getFallbackAction(keyCode, metaState); 5619 if (fallbackAction != null) { 5620 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5621 KeyEvent fallbackEvent = KeyEvent.obtain( 5622 event.getDownTime(), event.getEventTime(), 5623 event.getAction(), fallbackAction.keyCode, 5624 event.getRepeatCount(), fallbackAction.metaState, 5625 event.getDeviceId(), event.getScanCode(), 5626 flags, event.getSource(), null); 5627 fallbackAction.recycle(); 5628 5629 dispatchKey(fallbackEvent); 5630 } 5631 } 5632 } 5633 5634 public void dispatchAppVisibility(boolean visible) { 5635 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 5636 msg.arg1 = visible ? 1 : 0; 5637 mHandler.sendMessage(msg); 5638 } 5639 5640 public void dispatchScreenStateChange(boolean on) { 5641 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 5642 msg.arg1 = on ? 1 : 0; 5643 mHandler.sendMessage(msg); 5644 } 5645 5646 public void dispatchGetNewSurface() { 5647 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 5648 mHandler.sendMessage(msg); 5649 } 5650 5651 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5652 Message msg = Message.obtain(); 5653 msg.what = MSG_WINDOW_FOCUS_CHANGED; 5654 msg.arg1 = hasFocus ? 1 : 0; 5655 msg.arg2 = inTouchMode ? 1 : 0; 5656 mHandler.sendMessage(msg); 5657 } 5658 5659 public void dispatchCloseSystemDialogs(String reason) { 5660 Message msg = Message.obtain(); 5661 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 5662 msg.obj = reason; 5663 mHandler.sendMessage(msg); 5664 } 5665 5666 public void dispatchDragEvent(DragEvent event) { 5667 final int what; 5668 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 5669 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 5670 mHandler.removeMessages(what); 5671 } else { 5672 what = MSG_DISPATCH_DRAG_EVENT; 5673 } 5674 Message msg = mHandler.obtainMessage(what, event); 5675 mHandler.sendMessage(msg); 5676 } 5677 5678 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5679 int localValue, int localChanges) { 5680 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 5681 args.seq = seq; 5682 args.globalVisibility = globalVisibility; 5683 args.localValue = localValue; 5684 args.localChanges = localChanges; 5685 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 5686 } 5687 5688 public void dispatchDoneAnimating() { 5689 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 5690 } 5691 5692 public void dispatchCheckFocus() { 5693 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 5694 // This will result in a call to checkFocus() below. 5695 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 5696 } 5697 } 5698 5699 /** 5700 * Post a callback to send a 5701 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 5702 * This event is send at most once every 5703 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 5704 */ 5705 private void postSendWindowContentChangedCallback(View source) { 5706 if (mSendWindowContentChangedAccessibilityEvent == null) { 5707 mSendWindowContentChangedAccessibilityEvent = 5708 new SendWindowContentChangedAccessibilityEvent(); 5709 } 5710 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 5711 if (oldSource == null) { 5712 mSendWindowContentChangedAccessibilityEvent.mSource = source; 5713 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 5714 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 5715 } else { 5716 mSendWindowContentChangedAccessibilityEvent.mSource = 5717 getCommonPredecessor(oldSource, source); 5718 } 5719 } 5720 5721 /** 5722 * Remove a posted callback to send a 5723 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 5724 */ 5725 private void removeSendWindowContentChangedCallback() { 5726 if (mSendWindowContentChangedAccessibilityEvent != null) { 5727 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 5728 } 5729 } 5730 5731 public boolean showContextMenuForChild(View originalView) { 5732 return false; 5733 } 5734 5735 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 5736 return null; 5737 } 5738 5739 public void createContextMenu(ContextMenu menu) { 5740 } 5741 5742 public void childDrawableStateChanged(View child) { 5743 } 5744 5745 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 5746 if (mView == null) { 5747 return false; 5748 } 5749 // Intercept accessibility focus events fired by virtual nodes to keep 5750 // track of accessibility focus position in such nodes. 5751 final int eventType = event.getEventType(); 5752 switch (eventType) { 5753 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 5754 final long sourceNodeId = event.getSourceNodeId(); 5755 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 5756 sourceNodeId); 5757 View source = mView.findViewByAccessibilityId(accessibilityViewId); 5758 if (source != null) { 5759 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 5760 if (provider != null) { 5761 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 5762 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 5763 setAccessibilityFocus(source, node); 5764 } 5765 } 5766 } break; 5767 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 5768 final long sourceNodeId = event.getSourceNodeId(); 5769 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 5770 sourceNodeId); 5771 View source = mView.findViewByAccessibilityId(accessibilityViewId); 5772 if (source != null) { 5773 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 5774 if (provider != null) { 5775 setAccessibilityFocus(null, null); 5776 } 5777 } 5778 } break; 5779 } 5780 mAccessibilityManager.sendAccessibilityEvent(event); 5781 return true; 5782 } 5783 5784 @Override 5785 public void childAccessibilityStateChanged(View child) { 5786 postSendWindowContentChangedCallback(child); 5787 } 5788 5789 @Override 5790 public boolean canResolveLayoutDirection() { 5791 return true; 5792 } 5793 5794 @Override 5795 public boolean isLayoutDirectionResolved() { 5796 return true; 5797 } 5798 5799 @Override 5800 public int getLayoutDirection() { 5801 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 5802 } 5803 5804 @Override 5805 public boolean canResolveTextDirection() { 5806 return true; 5807 } 5808 5809 @Override 5810 public boolean isTextDirectionResolved() { 5811 return true; 5812 } 5813 5814 @Override 5815 public int getTextDirection() { 5816 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 5817 } 5818 5819 @Override 5820 public boolean canResolveTextAlignment() { 5821 return true; 5822 } 5823 5824 @Override 5825 public boolean isTextAlignmentResolved() { 5826 return true; 5827 } 5828 5829 @Override 5830 public int getTextAlignment() { 5831 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5832 } 5833 5834 private View getCommonPredecessor(View first, View second) { 5835 if (mAttachInfo != null) { 5836 if (mTempHashSet == null) { 5837 mTempHashSet = new HashSet<View>(); 5838 } 5839 HashSet<View> seen = mTempHashSet; 5840 seen.clear(); 5841 View firstCurrent = first; 5842 while (firstCurrent != null) { 5843 seen.add(firstCurrent); 5844 ViewParent firstCurrentParent = firstCurrent.mParent; 5845 if (firstCurrentParent instanceof View) { 5846 firstCurrent = (View) firstCurrentParent; 5847 } else { 5848 firstCurrent = null; 5849 } 5850 } 5851 View secondCurrent = second; 5852 while (secondCurrent != null) { 5853 if (seen.contains(secondCurrent)) { 5854 seen.clear(); 5855 return secondCurrent; 5856 } 5857 ViewParent secondCurrentParent = secondCurrent.mParent; 5858 if (secondCurrentParent instanceof View) { 5859 secondCurrent = (View) secondCurrentParent; 5860 } else { 5861 secondCurrent = null; 5862 } 5863 } 5864 seen.clear(); 5865 } 5866 return null; 5867 } 5868 5869 void checkThread() { 5870 if (mThread != Thread.currentThread()) { 5871 throw new CalledFromWrongThreadException( 5872 "Only the original thread that created a view hierarchy can touch its views."); 5873 } 5874 } 5875 5876 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5877 // ViewAncestor never intercepts touch event, so this can be a no-op 5878 } 5879 5880 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5881 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5882 if (rectangle != null) { 5883 mTempRect.set(rectangle); 5884 mTempRect.offset(0, -mCurScrollY); 5885 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5886 try { 5887 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5888 } catch (RemoteException re) { 5889 /* ignore */ 5890 } 5891 } 5892 return scrolled; 5893 } 5894 5895 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5896 // Do nothing. 5897 } 5898 5899 class TakenSurfaceHolder extends BaseSurfaceHolder { 5900 @Override 5901 public boolean onAllowLockCanvas() { 5902 return mDrawingAllowed; 5903 } 5904 5905 @Override 5906 public void onRelayoutContainer() { 5907 // Not currently interesting -- from changing between fixed and layout size. 5908 } 5909 5910 public void setFormat(int format) { 5911 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5912 } 5913 5914 public void setType(int type) { 5915 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5916 } 5917 5918 @Override 5919 public void onUpdateSurface() { 5920 // We take care of format and type changes on our own. 5921 throw new IllegalStateException("Shouldn't be here"); 5922 } 5923 5924 public boolean isCreating() { 5925 return mIsCreating; 5926 } 5927 5928 @Override 5929 public void setFixedSize(int width, int height) { 5930 throw new UnsupportedOperationException( 5931 "Currently only support sizing from layout"); 5932 } 5933 5934 public void setKeepScreenOn(boolean screenOn) { 5935 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5936 } 5937 } 5938 5939 static class W extends IWindow.Stub { 5940 private final WeakReference<ViewRootImpl> mViewAncestor; 5941 private final IWindowSession mWindowSession; 5942 5943 W(ViewRootImpl viewAncestor) { 5944 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5945 mWindowSession = viewAncestor.mWindowSession; 5946 } 5947 5948 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5949 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5950 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5951 if (viewAncestor != null) { 5952 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5953 visibleInsets, reportDraw, newConfig); 5954 } 5955 } 5956 5957 @Override 5958 public void moved(int newX, int newY) { 5959 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5960 if (viewAncestor != null) { 5961 viewAncestor.dispatchMoved(newX, newY); 5962 } 5963 } 5964 5965 public void dispatchAppVisibility(boolean visible) { 5966 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5967 if (viewAncestor != null) { 5968 viewAncestor.dispatchAppVisibility(visible); 5969 } 5970 } 5971 5972 public void dispatchScreenState(boolean on) { 5973 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5974 if (viewAncestor != null) { 5975 viewAncestor.dispatchScreenStateChange(on); 5976 } 5977 } 5978 5979 public void dispatchGetNewSurface() { 5980 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5981 if (viewAncestor != null) { 5982 viewAncestor.dispatchGetNewSurface(); 5983 } 5984 } 5985 5986 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5987 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5988 if (viewAncestor != null) { 5989 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5990 } 5991 } 5992 5993 private static int checkCallingPermission(String permission) { 5994 try { 5995 return ActivityManagerNative.getDefault().checkPermission( 5996 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5997 } catch (RemoteException e) { 5998 return PackageManager.PERMISSION_DENIED; 5999 } 6000 } 6001 6002 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6003 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6004 if (viewAncestor != null) { 6005 final View view = viewAncestor.mView; 6006 if (view != null) { 6007 if (checkCallingPermission(Manifest.permission.DUMP) != 6008 PackageManager.PERMISSION_GRANTED) { 6009 throw new SecurityException("Insufficient permissions to invoke" 6010 + " executeCommand() from pid=" + Binder.getCallingPid() 6011 + ", uid=" + Binder.getCallingUid()); 6012 } 6013 6014 OutputStream clientStream = null; 6015 try { 6016 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6017 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6018 } catch (IOException e) { 6019 e.printStackTrace(); 6020 } finally { 6021 if (clientStream != null) { 6022 try { 6023 clientStream.close(); 6024 } catch (IOException e) { 6025 e.printStackTrace(); 6026 } 6027 } 6028 } 6029 } 6030 } 6031 } 6032 6033 public void closeSystemDialogs(String reason) { 6034 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6035 if (viewAncestor != null) { 6036 viewAncestor.dispatchCloseSystemDialogs(reason); 6037 } 6038 } 6039 6040 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6041 boolean sync) { 6042 if (sync) { 6043 try { 6044 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6045 } catch (RemoteException e) { 6046 } 6047 } 6048 } 6049 6050 public void dispatchWallpaperCommand(String action, int x, int y, 6051 int z, Bundle extras, boolean sync) { 6052 if (sync) { 6053 try { 6054 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6055 } catch (RemoteException e) { 6056 } 6057 } 6058 } 6059 6060 /* Drag/drop */ 6061 public void dispatchDragEvent(DragEvent event) { 6062 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6063 if (viewAncestor != null) { 6064 viewAncestor.dispatchDragEvent(event); 6065 } 6066 } 6067 6068 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6069 int localValue, int localChanges) { 6070 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6071 if (viewAncestor != null) { 6072 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6073 localValue, localChanges); 6074 } 6075 } 6076 6077 public void doneAnimating() { 6078 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6079 if (viewAncestor != null) { 6080 viewAncestor.dispatchDoneAnimating(); 6081 } 6082 } 6083 } 6084 6085 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6086 public CalledFromWrongThreadException(String msg) { 6087 super(msg); 6088 } 6089 } 6090 6091 private SurfaceHolder mHolder = new SurfaceHolder() { 6092 // we only need a SurfaceHolder for opengl. it would be nice 6093 // to implement everything else though, especially the callback 6094 // support (opengl doesn't make use of it right now, but eventually 6095 // will). 6096 public Surface getSurface() { 6097 return mSurface; 6098 } 6099 6100 public boolean isCreating() { 6101 return false; 6102 } 6103 6104 public void addCallback(Callback callback) { 6105 } 6106 6107 public void removeCallback(Callback callback) { 6108 } 6109 6110 public void setFixedSize(int width, int height) { 6111 } 6112 6113 public void setSizeFromLayout() { 6114 } 6115 6116 public void setFormat(int format) { 6117 } 6118 6119 public void setType(int type) { 6120 } 6121 6122 public void setKeepScreenOn(boolean screenOn) { 6123 } 6124 6125 public Canvas lockCanvas() { 6126 return null; 6127 } 6128 6129 public Canvas lockCanvas(Rect dirty) { 6130 return null; 6131 } 6132 6133 public void unlockCanvasAndPost(Canvas canvas) { 6134 } 6135 public Rect getSurfaceFrame() { 6136 return null; 6137 } 6138 }; 6139 6140 static RunQueue getRunQueue() { 6141 RunQueue rq = sRunQueues.get(); 6142 if (rq != null) { 6143 return rq; 6144 } 6145 rq = new RunQueue(); 6146 sRunQueues.set(rq); 6147 return rq; 6148 } 6149 6150 /** 6151 * The run queue is used to enqueue pending work from Views when no Handler is 6152 * attached. The work is executed during the next call to performTraversals on 6153 * the thread. 6154 * @hide 6155 */ 6156 static final class RunQueue { 6157 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6158 6159 void post(Runnable action) { 6160 postDelayed(action, 0); 6161 } 6162 6163 void postDelayed(Runnable action, long delayMillis) { 6164 HandlerAction handlerAction = new HandlerAction(); 6165 handlerAction.action = action; 6166 handlerAction.delay = delayMillis; 6167 6168 synchronized (mActions) { 6169 mActions.add(handlerAction); 6170 } 6171 } 6172 6173 void removeCallbacks(Runnable action) { 6174 final HandlerAction handlerAction = new HandlerAction(); 6175 handlerAction.action = action; 6176 6177 synchronized (mActions) { 6178 final ArrayList<HandlerAction> actions = mActions; 6179 6180 while (actions.remove(handlerAction)) { 6181 // Keep going 6182 } 6183 } 6184 } 6185 6186 void executeActions(Handler handler) { 6187 synchronized (mActions) { 6188 final ArrayList<HandlerAction> actions = mActions; 6189 final int count = actions.size(); 6190 6191 for (int i = 0; i < count; i++) { 6192 final HandlerAction handlerAction = actions.get(i); 6193 handler.postDelayed(handlerAction.action, handlerAction.delay); 6194 } 6195 6196 actions.clear(); 6197 } 6198 } 6199 6200 private static class HandlerAction { 6201 Runnable action; 6202 long delay; 6203 6204 @Override 6205 public boolean equals(Object o) { 6206 if (this == o) return true; 6207 if (o == null || getClass() != o.getClass()) return false; 6208 6209 HandlerAction that = (HandlerAction) o; 6210 return !(action != null ? !action.equals(that.action) : that.action != null); 6211 6212 } 6213 6214 @Override 6215 public int hashCode() { 6216 int result = action != null ? action.hashCode() : 0; 6217 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6218 return result; 6219 } 6220 } 6221 } 6222 6223 /** 6224 * Class for managing the accessibility interaction connection 6225 * based on the global accessibility state. 6226 */ 6227 final class AccessibilityInteractionConnectionManager 6228 implements AccessibilityStateChangeListener { 6229 public void onAccessibilityStateChanged(boolean enabled) { 6230 if (enabled) { 6231 ensureConnection(); 6232 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 6233 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6234 View focusedView = mView.findFocus(); 6235 if (focusedView != null && focusedView != mView) { 6236 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6237 } 6238 } 6239 } else { 6240 ensureNoConnection(); 6241 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6242 } 6243 } 6244 6245 public void ensureConnection() { 6246 if (mAttachInfo != null) { 6247 final boolean registered = 6248 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 6249 if (!registered) { 6250 mAttachInfo.mAccessibilityWindowId = 6251 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6252 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6253 } 6254 } 6255 } 6256 6257 public void ensureNoConnection() { 6258 final boolean registered = 6259 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 6260 if (registered) { 6261 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 6262 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6263 } 6264 } 6265 } 6266 6267 /** 6268 * This class is an interface this ViewAncestor provides to the 6269 * AccessibilityManagerService to the latter can interact with 6270 * the view hierarchy in this ViewAncestor. 6271 */ 6272 static final class AccessibilityInteractionConnection 6273 extends IAccessibilityInteractionConnection.Stub { 6274 private final WeakReference<ViewRootImpl> mViewRootImpl; 6275 6276 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6277 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6278 } 6279 6280 @Override 6281 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6282 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6283 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6284 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6285 if (viewRootImpl != null && viewRootImpl.mView != null) { 6286 viewRootImpl.getAccessibilityInteractionController() 6287 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6288 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6289 spec); 6290 } else { 6291 // We cannot make the call and notify the caller so it does not wait. 6292 try { 6293 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6294 } catch (RemoteException re) { 6295 /* best effort - ignore */ 6296 } 6297 } 6298 } 6299 6300 @Override 6301 public void performAccessibilityAction(long accessibilityNodeId, int action, 6302 Bundle arguments, int interactionId, 6303 IAccessibilityInteractionConnectionCallback callback, int flags, 6304 int interogatingPid, long interrogatingTid) { 6305 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6306 if (viewRootImpl != null && viewRootImpl.mView != null) { 6307 viewRootImpl.getAccessibilityInteractionController() 6308 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6309 interactionId, callback, flags, interogatingPid, interrogatingTid); 6310 } else { 6311 // We cannot make the call and notify the caller so it does not wait. 6312 try { 6313 callback.setPerformAccessibilityActionResult(false, interactionId); 6314 } catch (RemoteException re) { 6315 /* best effort - ignore */ 6316 } 6317 } 6318 } 6319 6320 @Override 6321 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6322 String viewId, int interactionId, 6323 IAccessibilityInteractionConnectionCallback callback, int flags, 6324 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6325 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6326 if (viewRootImpl != null && viewRootImpl.mView != null) { 6327 viewRootImpl.getAccessibilityInteractionController() 6328 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6329 viewId, interactionId, callback, flags, interrogatingPid, 6330 interrogatingTid, spec); 6331 } else { 6332 // We cannot make the call and notify the caller so it does not wait. 6333 try { 6334 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6335 } catch (RemoteException re) { 6336 /* best effort - ignore */ 6337 } 6338 } 6339 } 6340 6341 @Override 6342 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6343 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6344 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6345 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6346 if (viewRootImpl != null && viewRootImpl.mView != null) { 6347 viewRootImpl.getAccessibilityInteractionController() 6348 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6349 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6350 spec); 6351 } else { 6352 // We cannot make the call and notify the caller so it does not wait. 6353 try { 6354 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6355 } catch (RemoteException re) { 6356 /* best effort - ignore */ 6357 } 6358 } 6359 } 6360 6361 @Override 6362 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 6363 IAccessibilityInteractionConnectionCallback callback, int flags, 6364 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6365 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6366 if (viewRootImpl != null && viewRootImpl.mView != null) { 6367 viewRootImpl.getAccessibilityInteractionController() 6368 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 6369 flags, interrogatingPid, interrogatingTid, spec); 6370 } else { 6371 // We cannot make the call and notify the caller so it does not wait. 6372 try { 6373 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6374 } catch (RemoteException re) { 6375 /* best effort - ignore */ 6376 } 6377 } 6378 } 6379 6380 @Override 6381 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 6382 IAccessibilityInteractionConnectionCallback callback, int flags, 6383 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6384 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6385 if (viewRootImpl != null && viewRootImpl.mView != null) { 6386 viewRootImpl.getAccessibilityInteractionController() 6387 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 6388 callback, flags, interrogatingPid, interrogatingTid, spec); 6389 } else { 6390 // We cannot make the call and notify the caller so it does not wait. 6391 try { 6392 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6393 } catch (RemoteException re) { 6394 /* best effort - ignore */ 6395 } 6396 } 6397 } 6398 } 6399 6400 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 6401 public View mSource; 6402 6403 public void run() { 6404 if (mSource != null) { 6405 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 6406 mSource.resetAccessibilityStateChanged(); 6407 mSource = null; 6408 } 6409 } 6410 } 6411} 6412