ViewRootImpl.java revision 78cb7cf7d1d82834c4405650a17e387370004570
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.animation.ValueAnimator; 22import android.app.ActivityManagerNative; 23import android.content.ClipDescription; 24import android.content.ComponentCallbacks; 25import android.content.ComponentCallbacks2; 26import android.content.Context; 27import android.content.pm.ApplicationInfo; 28import android.content.pm.PackageManager; 29import android.content.res.CompatibilityInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.graphics.Canvas; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.Region; 40import android.graphics.drawable.Drawable; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.LatencyTimer; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.PowerManager; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemClock; 54import android.os.SystemProperties; 55import android.os.Trace; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.EventLog; 59import android.util.Log; 60import android.util.Slog; 61import android.util.TypedValue; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.policy.PolicyManager; 79import com.android.internal.view.BaseSurfaceHolder; 80import com.android.internal.view.IInputMethodCallback; 81import com.android.internal.view.IInputMethodSession; 82import com.android.internal.view.RootViewSurfaceTaker; 83 84import java.io.IOException; 85import java.io.OutputStream; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.HashSet; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 114 private static final boolean USE_RENDER_THREAD = false; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 121 122 private static final boolean MEASURE_LATENCY = false; 123 private static LatencyTimer lt; 124 125 /** 126 * Maximum time we allow the user to roll the trackball enough to generate 127 * a key event, before resetting the counters. 128 */ 129 static final int MAX_TRACKBALL_DELAY = 250; 130 131 static IWindowSession sWindowSession; 132 133 static final Object mStaticInit = new Object(); 134 static boolean mInitialized = false; 135 136 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 137 138 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 139 static boolean sFirstDrawComplete = false; 140 141 static final ArrayList<ComponentCallbacks> sConfigCallbacks 142 = new ArrayList<ComponentCallbacks>(); 143 144 private static boolean sUseRenderThread = false; 145 private static boolean sRenderThreadQueried = false; 146 private static final Object[] sRenderThreadQueryLock = new Object[0]; 147 148 long mLastTrackballTime = 0; 149 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 150 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 151 152 int mLastJoystickXDirection; 153 int mLastJoystickYDirection; 154 int mLastJoystickXKeyCode; 155 int mLastJoystickYKeyCode; 156 157 final int[] mTmpLocation = new int[2]; 158 159 final TypedValue mTmpValue = new TypedValue(); 160 161 final InputMethodCallback mInputMethodCallback; 162 final Thread mThread; 163 164 final WindowLeaked mLocation; 165 166 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 167 168 final W mWindow; 169 170 final int mTargetSdkVersion; 171 172 int mSeq; 173 174 View mView; 175 View mFocusedView; 176 View mRealFocusedView; // this is not set to null in touch mode 177 View mOldFocusedView; 178 179 View mAccessibilityFocusedHost; 180 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 181 182 int mViewVisibility; 183 boolean mAppVisible = true; 184 int mOrigWindowType = -1; 185 186 // Set to true if the owner of this window is in the stopped state, 187 // so the window should no longer be active. 188 boolean mStopped = false; 189 190 boolean mLastInCompatMode = false; 191 192 SurfaceHolder.Callback2 mSurfaceHolderCallback; 193 BaseSurfaceHolder mSurfaceHolder; 194 boolean mIsCreating; 195 boolean mDrawingAllowed; 196 197 final Region mTransparentRegion; 198 final Region mPreviousTransparentRegion; 199 200 int mWidth; 201 int mHeight; 202 Rect mDirty; 203 final Rect mCurrentDirty = new Rect(); 204 final Rect mPreviousDirty = new Rect(); 205 boolean mIsAnimating; 206 207 CompatibilityInfo.Translator mTranslator; 208 209 final View.AttachInfo mAttachInfo; 210 InputChannel mInputChannel; 211 InputQueue.Callback mInputQueueCallback; 212 InputQueue mInputQueue; 213 FallbackEventHandler mFallbackEventHandler; 214 Choreographer mChoreographer; 215 216 final Rect mTempRect; // used in the transaction to not thrash the heap. 217 final Rect mVisRect; // used to retrieve visible rect of focused view. 218 219 boolean mTraversalScheduled; 220 int mTraversalBarrier; 221 long mLastTraversalFinishedTimeNanos; 222 long mLastDrawFinishedTimeNanos; 223 boolean mWillDrawSoon; 224 boolean mFitSystemWindowsRequested; 225 boolean mLayoutRequested; 226 boolean mFirst; 227 boolean mReportNextDraw; 228 boolean mFullRedrawNeeded; 229 boolean mNewSurfaceNeeded; 230 boolean mHasHadWindowFocus; 231 boolean mLastWasImTarget; 232 boolean mWindowsAnimating; 233 boolean mIsDrawing; 234 int mLastSystemUiVisibility; 235 236 // Pool of queued input events. 237 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 238 private QueuedInputEvent mQueuedInputEventPool; 239 private int mQueuedInputEventPoolSize; 240 241 // Input event queue. 242 QueuedInputEvent mFirstPendingInputEvent; 243 QueuedInputEvent mCurrentInputEvent; 244 boolean mProcessInputEventsScheduled; 245 246 boolean mWindowAttributesChanged = false; 247 int mWindowAttributesChangesFlag = 0; 248 249 // These can be accessed by any thread, must be protected with a lock. 250 // Surface can never be reassigned or cleared (use Surface.clear()). 251 private final Surface mSurface = new Surface(); 252 253 boolean mAdded; 254 boolean mAddedTouchMode; 255 256 CompatibilityInfoHolder mCompatibilityInfo; 257 258 /*package*/ int mAddNesting; 259 260 // These are accessed by multiple threads. 261 final Rect mWinFrame; // frame given by window manager. 262 263 final Rect mPendingVisibleInsets = new Rect(); 264 final Rect mPendingContentInsets = new Rect(); 265 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 266 = new ViewTreeObserver.InternalInsetsInfo(); 267 268 final Rect mFitSystemWindowsInsets = new Rect(); 269 270 final Configuration mLastConfiguration = new Configuration(); 271 final Configuration mPendingConfiguration = new Configuration(); 272 273 class ResizedInfo { 274 Rect contentInsets; 275 Rect visibleInsets; 276 Configuration newConfig; 277 } 278 279 boolean mScrollMayChange; 280 int mSoftInputMode; 281 View mLastScrolledFocus; 282 int mScrollY; 283 int mCurScrollY; 284 Scroller mScroller; 285 HardwareLayer mResizeBuffer; 286 long mResizeBufferStartTime; 287 int mResizeBufferDuration; 288 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 289 private ArrayList<LayoutTransition> mPendingTransitions; 290 291 final ViewConfiguration mViewConfiguration; 292 293 /* Drag/drop */ 294 ClipDescription mDragDescription; 295 View mCurrentDragView; 296 volatile Object mLocalDragState; 297 final PointF mDragPoint = new PointF(); 298 final PointF mLastTouchPoint = new PointF(); 299 300 private boolean mProfileRendering; 301 private Thread mRenderProfiler; 302 private volatile boolean mRenderProfilingEnabled; 303 304 // Variables to track frames per second, enabled via DEBUG_FPS flag 305 private long mFpsStartTime = -1; 306 private long mFpsPrevTime = -1; 307 private int mFpsNumFrames; 308 309 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 310 311 /** 312 * see {@link #playSoundEffect(int)} 313 */ 314 AudioManager mAudioManager; 315 316 final AccessibilityManager mAccessibilityManager; 317 318 AccessibilityInteractionController mAccessibilityInteractionController; 319 320 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 321 322 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 323 324 HashSet<View> mTempHashSet; 325 326 private final int mDensity; 327 328 /** 329 * Consistency verifier for debugging purposes. 330 */ 331 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 332 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 333 new InputEventConsistencyVerifier(this, 0) : null; 334 335 public static IWindowSession getWindowSession(Looper mainLooper) { 336 synchronized (mStaticInit) { 337 if (!mInitialized) { 338 try { 339 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 340 IWindowManager windowManager = Display.getWindowManager(); 341 sWindowSession = windowManager.openSession( 342 imm.getClient(), imm.getInputContext()); 343 float animatorScale = windowManager.getAnimationScale(2); 344 ValueAnimator.setDurationScale(animatorScale); 345 mInitialized = true; 346 } catch (RemoteException e) { 347 } 348 } 349 return sWindowSession; 350 } 351 } 352 353 static final class SystemUiVisibilityInfo { 354 int seq; 355 int globalVisibility; 356 int localValue; 357 int localChanges; 358 } 359 360 public ViewRootImpl(Context context) { 361 super(); 362 363 if (MEASURE_LATENCY) { 364 if (lt == null) { 365 lt = new LatencyTimer(100, 1000); 366 } 367 } 368 369 // Initialize the statics when this class is first instantiated. This is 370 // done here instead of in the static block because Zygote does not 371 // allow the spawning of threads. 372 getWindowSession(context.getMainLooper()); 373 374 mThread = Thread.currentThread(); 375 mLocation = new WindowLeaked(null); 376 mLocation.fillInStackTrace(); 377 mWidth = -1; 378 mHeight = -1; 379 mDirty = new Rect(); 380 mTempRect = new Rect(); 381 mVisRect = new Rect(); 382 mWinFrame = new Rect(); 383 mWindow = new W(this); 384 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 385 mInputMethodCallback = new InputMethodCallback(this); 386 mViewVisibility = View.GONE; 387 mTransparentRegion = new Region(); 388 mPreviousTransparentRegion = new Region(); 389 mFirst = true; // true for the first time the view is added 390 mAdded = false; 391 mAccessibilityManager = AccessibilityManager.getInstance(context); 392 mAccessibilityInteractionConnectionManager = 393 new AccessibilityInteractionConnectionManager(); 394 mAccessibilityManager.addAccessibilityStateChangeListener( 395 mAccessibilityInteractionConnectionManager); 396 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 397 mViewConfiguration = ViewConfiguration.get(context); 398 mDensity = context.getResources().getDisplayMetrics().densityDpi; 399 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 400 mProfileRendering = Boolean.parseBoolean( 401 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 402 mChoreographer = Choreographer.getInstance(); 403 404 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 405 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 406 loadSystemProperties(); 407 } 408 409 /** 410 * @return True if the application requests the use of a separate render thread, 411 * false otherwise 412 */ 413 private static boolean isRenderThreadRequested(Context context) { 414 if (USE_RENDER_THREAD) { 415 synchronized (sRenderThreadQueryLock) { 416 if (!sRenderThreadQueried) { 417 final PackageManager packageManager = context.getPackageManager(); 418 final String packageName = context.getApplicationInfo().packageName; 419 try { 420 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 421 PackageManager.GET_META_DATA); 422 if (applicationInfo.metaData != null) { 423 sUseRenderThread = applicationInfo.metaData.getBoolean( 424 "android.graphics.renderThread", false); 425 } 426 } catch (PackageManager.NameNotFoundException e) { 427 } finally { 428 sRenderThreadQueried = true; 429 } 430 } 431 return sUseRenderThread; 432 } 433 } else { 434 return false; 435 } 436 } 437 438 public static void addFirstDrawHandler(Runnable callback) { 439 synchronized (sFirstDrawHandlers) { 440 if (!sFirstDrawComplete) { 441 sFirstDrawHandlers.add(callback); 442 } 443 } 444 } 445 446 public static void addConfigCallback(ComponentCallbacks callback) { 447 synchronized (sConfigCallbacks) { 448 sConfigCallbacks.add(callback); 449 } 450 } 451 452 // FIXME for perf testing only 453 private boolean mProfile = false; 454 455 /** 456 * Call this to profile the next traversal call. 457 * FIXME for perf testing only. Remove eventually 458 */ 459 public void profile() { 460 mProfile = true; 461 } 462 463 /** 464 * Indicates whether we are in touch mode. Calling this method triggers an IPC 465 * call and should be avoided whenever possible. 466 * 467 * @return True, if the device is in touch mode, false otherwise. 468 * 469 * @hide 470 */ 471 static boolean isInTouchMode() { 472 if (mInitialized) { 473 try { 474 return sWindowSession.getInTouchMode(); 475 } catch (RemoteException e) { 476 } 477 } 478 return false; 479 } 480 481 /** 482 * We have one child 483 */ 484 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 485 synchronized (this) { 486 if (mView == null) { 487 mView = view; 488 mFallbackEventHandler.setView(view); 489 mWindowAttributes.copyFrom(attrs); 490 attrs = mWindowAttributes; 491 492 setAccessibilityFocusedHost(null); 493 494 if (view instanceof RootViewSurfaceTaker) { 495 mSurfaceHolderCallback = 496 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 497 if (mSurfaceHolderCallback != null) { 498 mSurfaceHolder = new TakenSurfaceHolder(); 499 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 500 } 501 } 502 503 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 504 mTranslator = compatibilityInfo.getTranslator(); 505 506 // If the application owns the surface, don't enable hardware acceleration 507 if (mSurfaceHolder == null) { 508 enableHardwareAcceleration(mView.getContext(), attrs); 509 } 510 511 boolean restore = false; 512 if (mTranslator != null) { 513 mSurface.setCompatibilityTranslator(mTranslator); 514 restore = true; 515 attrs.backup(); 516 mTranslator.translateWindowLayout(attrs); 517 } 518 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 519 520 if (!compatibilityInfo.supportsScreen()) { 521 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 522 mLastInCompatMode = true; 523 } 524 525 mSoftInputMode = attrs.softInputMode; 526 mWindowAttributesChanged = true; 527 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 528 mAttachInfo.mRootView = view; 529 mAttachInfo.mScalingRequired = mTranslator != null; 530 mAttachInfo.mApplicationScale = 531 mTranslator == null ? 1.0f : mTranslator.applicationScale; 532 if (panelParentView != null) { 533 mAttachInfo.mPanelParentWindowToken 534 = panelParentView.getApplicationWindowToken(); 535 } 536 mAdded = true; 537 int res; /* = WindowManagerImpl.ADD_OKAY; */ 538 539 // Schedule the first layout -before- adding to the window 540 // manager, to make sure we do the relayout before receiving 541 // any other events from the system. 542 requestLayout(); 543 if ((mWindowAttributes.inputFeatures 544 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 545 mInputChannel = new InputChannel(); 546 } 547 try { 548 mOrigWindowType = mWindowAttributes.type; 549 mAttachInfo.mRecomputeGlobalAttributes = true; 550 collectViewAttributes(); 551 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 552 getHostVisibility(), mAttachInfo.mContentInsets, 553 mInputChannel); 554 } catch (RemoteException e) { 555 mAdded = false; 556 mView = null; 557 mAttachInfo.mRootView = null; 558 mInputChannel = null; 559 mFallbackEventHandler.setView(null); 560 unscheduleTraversals(); 561 setAccessibilityFocusedHost(null); 562 throw new RuntimeException("Adding window failed", e); 563 } finally { 564 if (restore) { 565 attrs.restore(); 566 } 567 } 568 569 if (mTranslator != null) { 570 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 571 } 572 mPendingContentInsets.set(mAttachInfo.mContentInsets); 573 mPendingVisibleInsets.set(0, 0, 0, 0); 574 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 575 if (res < WindowManagerImpl.ADD_OKAY) { 576 mView = null; 577 mAttachInfo.mRootView = null; 578 mAdded = false; 579 mFallbackEventHandler.setView(null); 580 unscheduleTraversals(); 581 setAccessibilityFocusedHost(null); 582 switch (res) { 583 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 584 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 585 throw new WindowManagerImpl.BadTokenException( 586 "Unable to add window -- token " + attrs.token 587 + " is not valid; is your activity running?"); 588 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 589 throw new WindowManagerImpl.BadTokenException( 590 "Unable to add window -- token " + attrs.token 591 + " is not for an application"); 592 case WindowManagerImpl.ADD_APP_EXITING: 593 throw new WindowManagerImpl.BadTokenException( 594 "Unable to add window -- app for token " + attrs.token 595 + " is exiting"); 596 case WindowManagerImpl.ADD_DUPLICATE_ADD: 597 throw new WindowManagerImpl.BadTokenException( 598 "Unable to add window -- window " + mWindow 599 + " has already been added"); 600 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 601 // Silently ignore -- we would have just removed it 602 // right away, anyway. 603 return; 604 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 605 throw new WindowManagerImpl.BadTokenException( 606 "Unable to add window " + mWindow + 607 " -- another window of this type already exists"); 608 case WindowManagerImpl.ADD_PERMISSION_DENIED: 609 throw new WindowManagerImpl.BadTokenException( 610 "Unable to add window " + mWindow + 611 " -- permission denied for this window type"); 612 } 613 throw new RuntimeException( 614 "Unable to add window -- unknown error code " + res); 615 } 616 617 if (view instanceof RootViewSurfaceTaker) { 618 mInputQueueCallback = 619 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 620 } 621 if (mInputChannel != null) { 622 if (mInputQueueCallback != null) { 623 mInputQueue = new InputQueue(mInputChannel); 624 mInputQueueCallback.onInputQueueCreated(mInputQueue); 625 } else { 626 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 627 Looper.myLooper()); 628 } 629 } 630 631 view.assignParent(this); 632 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 633 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 634 635 if (mAccessibilityManager.isEnabled()) { 636 mAccessibilityInteractionConnectionManager.ensureConnection(); 637 } 638 639 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 640 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 641 } 642 } 643 } 644 } 645 646 void destroyHardwareResources() { 647 if (mAttachInfo.mHardwareRenderer != null) { 648 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 649 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 650 } 651 mAttachInfo.mHardwareRenderer.destroy(false); 652 } 653 } 654 655 void terminateHardwareResources() { 656 if (mAttachInfo.mHardwareRenderer != null) { 657 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 658 mAttachInfo.mHardwareRenderer.destroy(false); 659 } 660 } 661 662 void destroyHardwareLayers() { 663 if (mThread != Thread.currentThread()) { 664 if (mAttachInfo.mHardwareRenderer != null && 665 mAttachInfo.mHardwareRenderer.isEnabled()) { 666 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 667 } 668 } else { 669 if (mAttachInfo.mHardwareRenderer != null && 670 mAttachInfo.mHardwareRenderer.isEnabled()) { 671 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 672 } 673 } 674 } 675 676 public void attachFunctor(int functor) { 677 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 678 mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 679 } 680 } 681 682 public void detachFunctor(int functor) { 683 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 684 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 685 } 686 } 687 688 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 689 mAttachInfo.mHardwareAccelerated = false; 690 mAttachInfo.mHardwareAccelerationRequested = false; 691 692 // Don't enable hardware acceleration when the application is in compatibility mode 693 if (mTranslator != null) return; 694 695 // Try to enable hardware acceleration if requested 696 final boolean hardwareAccelerated = 697 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 698 699 if (hardwareAccelerated) { 700 if (!HardwareRenderer.isAvailable()) { 701 return; 702 } 703 704 // Persistent processes (including the system) should not do 705 // accelerated rendering on low-end devices. In that case, 706 // sRendererDisabled will be set. In addition, the system process 707 // itself should never do accelerated rendering. In that case, both 708 // sRendererDisabled and sSystemRendererDisabled are set. When 709 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 710 // can be used by code on the system process to escape that and enable 711 // HW accelerated drawing. (This is basically for the lock screen.) 712 713 final boolean fakeHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 715 final boolean forceHwAccelerated = (attrs.privateFlags & 716 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 717 718 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 719 && forceHwAccelerated)) { 720 // Don't enable hardware acceleration when we're not on the main thread 721 if (!HardwareRenderer.sSystemRendererDisabled && 722 Looper.getMainLooper() != Looper.myLooper()) { 723 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 724 + "acceleration outside of the main thread, aborting"); 725 return; 726 } 727 728 final boolean renderThread = isRenderThreadRequested(context); 729 if (renderThread) { 730 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 731 } 732 733 if (mAttachInfo.mHardwareRenderer != null) { 734 mAttachInfo.mHardwareRenderer.destroy(true); 735 } 736 737 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 738 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 739 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 740 = mAttachInfo.mHardwareRenderer != null; 741 742 } else if (fakeHwAccelerated) { 743 // The window had wanted to use hardware acceleration, but this 744 // is not allowed in its process. By setting this flag, it can 745 // still render as if it was accelerated. This is basically for 746 // the preview windows the window manager shows for launching 747 // applications, so they will look more like the app being launched. 748 mAttachInfo.mHardwareAccelerationRequested = true; 749 } 750 } 751 } 752 753 public View getView() { 754 return mView; 755 } 756 757 final WindowLeaked getLocation() { 758 return mLocation; 759 } 760 761 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 762 synchronized (this) { 763 int oldSoftInputMode = mWindowAttributes.softInputMode; 764 // preserve compatible window flag if exists. 765 int compatibleWindowFlag = 766 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 767 // transfer over system UI visibility values as they carry current state. 768 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 769 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 770 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 771 mWindowAttributes.flags |= compatibleWindowFlag; 772 773 if (newView) { 774 mSoftInputMode = attrs.softInputMode; 775 requestLayout(); 776 } 777 // Don't lose the mode we last auto-computed. 778 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 779 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 780 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 781 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 782 | (oldSoftInputMode 783 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 784 } 785 mWindowAttributesChanged = true; 786 scheduleTraversals(); 787 } 788 } 789 790 void handleAppVisibility(boolean visible) { 791 if (mAppVisible != visible) { 792 mAppVisible = visible; 793 scheduleTraversals(); 794 } 795 } 796 797 void handleGetNewSurface() { 798 mNewSurfaceNeeded = true; 799 mFullRedrawNeeded = true; 800 scheduleTraversals(); 801 } 802 803 void handleScreenStateChange(boolean on) { 804 if (on != mAttachInfo.mScreenOn) { 805 mAttachInfo.mScreenOn = on; 806 if (mView != null) { 807 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 808 } 809 if (on) { 810 mFullRedrawNeeded = true; 811 scheduleTraversals(); 812 } 813 } 814 } 815 816 /** 817 * {@inheritDoc} 818 */ 819 public void requestFitSystemWindows() { 820 checkThread(); 821 mFitSystemWindowsRequested = true; 822 scheduleTraversals(); 823 } 824 825 /** 826 * {@inheritDoc} 827 */ 828 public void requestLayout() { 829 checkThread(); 830 mLayoutRequested = true; 831 scheduleTraversals(); 832 } 833 834 /** 835 * {@inheritDoc} 836 */ 837 public boolean isLayoutRequested() { 838 return mLayoutRequested; 839 } 840 841 void invalidate() { 842 mDirty.set(0, 0, mWidth, mHeight); 843 scheduleTraversals(); 844 } 845 846 void invalidateWorld(View view) { 847 view.invalidate(); 848 if (view instanceof ViewGroup) { 849 ViewGroup parent = (ViewGroup)view; 850 for (int i=0; i<parent.getChildCount(); i++) { 851 invalidateWorld(parent.getChildAt(i)); 852 } 853 } 854 } 855 856 public void invalidateChild(View child, Rect dirty) { 857 invalidateChildInParent(null, dirty); 858 } 859 860 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 861 checkThread(); 862 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 863 864 if (dirty == null) { 865 invalidate(); 866 return null; 867 } 868 869 if (mCurScrollY != 0 || mTranslator != null) { 870 mTempRect.set(dirty); 871 dirty = mTempRect; 872 if (mCurScrollY != 0) { 873 dirty.offset(0, -mCurScrollY); 874 } 875 if (mTranslator != null) { 876 mTranslator.translateRectInAppWindowToScreen(dirty); 877 } 878 if (mAttachInfo.mScalingRequired) { 879 dirty.inset(-1, -1); 880 } 881 } 882 883 final Rect localDirty = mDirty; 884 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 885 mAttachInfo.mSetIgnoreDirtyState = true; 886 mAttachInfo.mIgnoreDirtyState = true; 887 } 888 889 // Add the new dirty rect to the current one 890 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 891 // Intersect with the bounds of the window to skip 892 // updates that lie outside of the visible region 893 final float appScale = mAttachInfo.mApplicationScale; 894 localDirty.intersect(0, 0, 895 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 896 897 if (!mWillDrawSoon) { 898 scheduleTraversals(); 899 } 900 901 return null; 902 } 903 904 void setStopped(boolean stopped) { 905 if (mStopped != stopped) { 906 mStopped = stopped; 907 if (!stopped) { 908 scheduleTraversals(); 909 } 910 } 911 } 912 913 public ViewParent getParent() { 914 return null; 915 } 916 917 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 918 if (child != mView) { 919 throw new RuntimeException("child is not mine, honest!"); 920 } 921 // Note: don't apply scroll offset, because we want to know its 922 // visibility in the virtual canvas being given to the view hierarchy. 923 return r.intersect(0, 0, mWidth, mHeight); 924 } 925 926 public void bringChildToFront(View child) { 927 } 928 929 int getHostVisibility() { 930 return mAppVisible ? mView.getVisibility() : View.GONE; 931 } 932 933 void disposeResizeBuffer() { 934 if (mResizeBuffer != null) { 935 mResizeBuffer.destroy(); 936 mResizeBuffer = null; 937 } 938 } 939 940 /** 941 * Add LayoutTransition to the list of transitions to be started in the next traversal. 942 * This list will be cleared after the transitions on the list are start()'ed. These 943 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 944 * happens during the layout phase of traversal, which we want to complete before any of the 945 * animations are started (because those animations may side-effect properties that layout 946 * depends upon, like the bounding rectangles of the affected views). So we add the transition 947 * to the list and it is started just prior to starting the drawing phase of traversal. 948 * 949 * @param transition The LayoutTransition to be started on the next traversal. 950 * 951 * @hide 952 */ 953 public void requestTransitionStart(LayoutTransition transition) { 954 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 955 if (mPendingTransitions == null) { 956 mPendingTransitions = new ArrayList<LayoutTransition>(); 957 } 958 mPendingTransitions.add(transition); 959 } 960 } 961 962 void scheduleTraversals() { 963 if (!mTraversalScheduled) { 964 mTraversalScheduled = true; 965 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 966 mChoreographer.postCallback( 967 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 968 scheduleConsumeBatchedInput(); 969 } 970 } 971 972 void unscheduleTraversals() { 973 if (mTraversalScheduled) { 974 mTraversalScheduled = false; 975 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 976 mChoreographer.removeCallbacks( 977 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 978 } 979 } 980 981 void doTraversal() { 982 if (mTraversalScheduled) { 983 mTraversalScheduled = false; 984 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 985 986 if (mProfile) { 987 Debug.startMethodTracing("ViewAncestor"); 988 } 989 990 final long traversalStartTime; 991 if (ViewDebug.DEBUG_LATENCY) { 992 traversalStartTime = System.nanoTime(); 993 if (mLastTraversalFinishedTimeNanos != 0) { 994 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 995 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 996 + "ms since the last traversals finished."); 997 } else { 998 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 999 } 1000 } 1001 1002 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1003 try { 1004 performTraversals(); 1005 } finally { 1006 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1007 } 1008 1009 if (ViewDebug.DEBUG_LATENCY) { 1010 long now = System.nanoTime(); 1011 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 1012 + ((now - traversalStartTime) * 0.000001f) 1013 + "ms."); 1014 mLastTraversalFinishedTimeNanos = now; 1015 } 1016 1017 if (mProfile) { 1018 Debug.stopMethodTracing(); 1019 mProfile = false; 1020 } 1021 } 1022 } 1023 1024 private boolean collectViewAttributes() { 1025 final View.AttachInfo attachInfo = mAttachInfo; 1026 if (attachInfo.mRecomputeGlobalAttributes) { 1027 //Log.i(TAG, "Computing view hierarchy attributes!"); 1028 attachInfo.mRecomputeGlobalAttributes = false; 1029 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1030 int oldVis = attachInfo.mSystemUiVisibility; 1031 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1032 attachInfo.mKeepScreenOn = false; 1033 attachInfo.mSystemUiVisibility = 0; 1034 attachInfo.mHasSystemUiListeners = false; 1035 mView.dispatchCollectViewAttributes(attachInfo, 0); 1036 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1037 if (attachInfo.mKeepScreenOn != oldScreenOn 1038 || attachInfo.mSystemUiVisibility != oldVis 1039 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1040 WindowManager.LayoutParams params = mWindowAttributes; 1041 if (attachInfo.mKeepScreenOn) { 1042 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1043 } 1044 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1045 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1046 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1047 return true; 1048 } 1049 } 1050 return false; 1051 } 1052 1053 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1054 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1055 int childWidthMeasureSpec; 1056 int childHeightMeasureSpec; 1057 boolean windowSizeMayChange = false; 1058 1059 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1060 "Measuring " + host + " in display " + desiredWindowWidth 1061 + "x" + desiredWindowHeight + "..."); 1062 1063 boolean goodMeasure = false; 1064 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1065 // On large screens, we don't want to allow dialogs to just 1066 // stretch to fill the entire width of the screen to display 1067 // one line of text. First try doing the layout at a smaller 1068 // size to see if it will fit. 1069 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1070 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1071 int baseSize = 0; 1072 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1073 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1074 } 1075 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1076 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1077 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1078 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1079 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1080 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1081 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1082 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1083 goodMeasure = true; 1084 } else { 1085 // Didn't fit in that size... try expanding a bit. 1086 baseSize = (baseSize+desiredWindowWidth)/2; 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1088 + baseSize); 1089 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1090 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1091 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1092 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1093 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1094 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1095 goodMeasure = true; 1096 } 1097 } 1098 } 1099 } 1100 1101 if (!goodMeasure) { 1102 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1103 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1104 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1105 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1106 windowSizeMayChange = true; 1107 } 1108 } 1109 1110 if (DBG) { 1111 System.out.println("======================================"); 1112 System.out.println("performTraversals -- after measure"); 1113 host.debug(); 1114 } 1115 1116 return windowSizeMayChange; 1117 } 1118 1119 private void performTraversals() { 1120 // cache mView since it is used so much below... 1121 final View host = mView; 1122 1123 if (DBG) { 1124 System.out.println("======================================"); 1125 System.out.println("performTraversals"); 1126 host.debug(); 1127 } 1128 1129 if (host == null || !mAdded) 1130 return; 1131 1132 mWillDrawSoon = true; 1133 boolean windowSizeMayChange = false; 1134 boolean newSurface = false; 1135 boolean surfaceChanged = false; 1136 WindowManager.LayoutParams lp = mWindowAttributes; 1137 1138 int desiredWindowWidth; 1139 int desiredWindowHeight; 1140 1141 final View.AttachInfo attachInfo = mAttachInfo; 1142 1143 final int viewVisibility = getHostVisibility(); 1144 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1145 || mNewSurfaceNeeded; 1146 1147 WindowManager.LayoutParams params = null; 1148 if (mWindowAttributesChanged) { 1149 mWindowAttributesChanged = false; 1150 surfaceChanged = true; 1151 params = lp; 1152 } 1153 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1154 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1155 params = lp; 1156 mFullRedrawNeeded = true; 1157 mLayoutRequested = true; 1158 if (mLastInCompatMode) { 1159 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1160 mLastInCompatMode = false; 1161 } else { 1162 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1163 mLastInCompatMode = true; 1164 } 1165 } 1166 1167 mWindowAttributesChangesFlag = 0; 1168 1169 Rect frame = mWinFrame; 1170 if (mFirst) { 1171 mFullRedrawNeeded = true; 1172 mLayoutRequested = true; 1173 1174 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1175 // NOTE -- system code, won't try to do compat mode. 1176 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1177 Point size = new Point(); 1178 disp.getRealSize(size); 1179 desiredWindowWidth = size.x; 1180 desiredWindowHeight = size.y; 1181 } else { 1182 DisplayMetrics packageMetrics = 1183 mView.getContext().getResources().getDisplayMetrics(); 1184 desiredWindowWidth = packageMetrics.widthPixels; 1185 desiredWindowHeight = packageMetrics.heightPixels; 1186 } 1187 1188 // For the very first time, tell the view hierarchy that it 1189 // is attached to the window. Note that at this point the surface 1190 // object is not initialized to its backing store, but soon it 1191 // will be (assuming the window is visible). 1192 attachInfo.mSurface = mSurface; 1193 // We used to use the following condition to choose 32 bits drawing caches: 1194 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1195 // However, windows are now always 32 bits by default, so choose 32 bits 1196 attachInfo.mUse32BitDrawingCache = true; 1197 attachInfo.mHasWindowFocus = false; 1198 attachInfo.mWindowVisibility = viewVisibility; 1199 attachInfo.mRecomputeGlobalAttributes = false; 1200 viewVisibilityChanged = false; 1201 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1202 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1203 host.dispatchAttachedToWindow(attachInfo, 0); 1204 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1205 host.fitSystemWindows(mFitSystemWindowsInsets); 1206 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1207 1208 } else { 1209 desiredWindowWidth = frame.width(); 1210 desiredWindowHeight = frame.height(); 1211 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1212 if (DEBUG_ORIENTATION) Log.v(TAG, 1213 "View " + host + " resized to: " + frame); 1214 mFullRedrawNeeded = true; 1215 mLayoutRequested = true; 1216 windowSizeMayChange = true; 1217 } 1218 } 1219 1220 if (viewVisibilityChanged) { 1221 attachInfo.mWindowVisibility = viewVisibility; 1222 host.dispatchWindowVisibilityChanged(viewVisibility); 1223 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1224 destroyHardwareResources(); 1225 } 1226 if (viewVisibility == View.GONE) { 1227 // After making a window gone, we will count it as being 1228 // shown for the first time the next time it gets focus. 1229 mHasHadWindowFocus = false; 1230 } 1231 } 1232 1233 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1234 getRunQueue().executeActions(attachInfo.mHandler); 1235 1236 boolean insetsChanged = false; 1237 1238 boolean layoutRequested = mLayoutRequested && !mStopped; 1239 if (layoutRequested) { 1240 1241 final Resources res = mView.getContext().getResources(); 1242 1243 if (mFirst) { 1244 // make sure touch mode code executes by setting cached value 1245 // to opposite of the added touch mode. 1246 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1247 ensureTouchModeLocally(mAddedTouchMode); 1248 } else { 1249 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1250 insetsChanged = true; 1251 } 1252 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1253 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1254 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1255 + mAttachInfo.mVisibleInsets); 1256 } 1257 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1258 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1259 windowSizeMayChange = true; 1260 1261 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1262 // NOTE -- system code, won't try to do compat mode. 1263 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1264 Point size = new Point(); 1265 disp.getRealSize(size); 1266 desiredWindowWidth = size.x; 1267 desiredWindowHeight = size.y; 1268 } else { 1269 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1270 desiredWindowWidth = packageMetrics.widthPixels; 1271 desiredWindowHeight = packageMetrics.heightPixels; 1272 } 1273 } 1274 } 1275 1276 // Ask host how big it wants to be 1277 windowSizeMayChange |= measureHierarchy(host, lp, res, 1278 desiredWindowWidth, desiredWindowHeight); 1279 } 1280 1281 if (collectViewAttributes()) { 1282 params = lp; 1283 } 1284 if (attachInfo.mForceReportNewAttributes) { 1285 attachInfo.mForceReportNewAttributes = false; 1286 params = lp; 1287 } 1288 1289 if (mFirst || attachInfo.mViewVisibilityChanged) { 1290 attachInfo.mViewVisibilityChanged = false; 1291 int resizeMode = mSoftInputMode & 1292 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1293 // If we are in auto resize mode, then we need to determine 1294 // what mode to use now. 1295 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1296 final int N = attachInfo.mScrollContainers.size(); 1297 for (int i=0; i<N; i++) { 1298 if (attachInfo.mScrollContainers.get(i).isShown()) { 1299 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1300 } 1301 } 1302 if (resizeMode == 0) { 1303 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1304 } 1305 if ((lp.softInputMode & 1306 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1307 lp.softInputMode = (lp.softInputMode & 1308 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1309 resizeMode; 1310 params = lp; 1311 } 1312 } 1313 } 1314 1315 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1316 if (!PixelFormat.formatHasAlpha(params.format)) { 1317 params.format = PixelFormat.TRANSLUCENT; 1318 } 1319 } 1320 1321 if (mFitSystemWindowsRequested) { 1322 mFitSystemWindowsRequested = false; 1323 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1324 host.fitSystemWindows(mFitSystemWindowsInsets); 1325 if (mLayoutRequested) { 1326 // Short-circuit catching a new layout request here, so 1327 // we don't need to go through two layout passes when things 1328 // change due to fitting system windows, which can happen a lot. 1329 windowSizeMayChange |= measureHierarchy(host, lp, 1330 mView.getContext().getResources(), 1331 desiredWindowWidth, desiredWindowHeight); 1332 } 1333 } 1334 1335 if (layoutRequested) { 1336 // Clear this now, so that if anything requests a layout in the 1337 // rest of this function we will catch it and re-run a full 1338 // layout pass. 1339 mLayoutRequested = false; 1340 } 1341 1342 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1343 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1344 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1345 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1346 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1347 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1348 1349 final boolean computesInternalInsets = 1350 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1351 1352 boolean insetsPending = false; 1353 int relayoutResult = 0; 1354 1355 if (mFirst || windowShouldResize || insetsChanged || 1356 viewVisibilityChanged || params != null) { 1357 1358 if (viewVisibility == View.VISIBLE) { 1359 // If this window is giving internal insets to the window 1360 // manager, and it is being added or changing its visibility, 1361 // then we want to first give the window manager "fake" 1362 // insets to cause it to effectively ignore the content of 1363 // the window during layout. This avoids it briefly causing 1364 // other windows to resize/move based on the raw frame of the 1365 // window, waiting until we can finish laying out this window 1366 // and get back to the window manager with the ultimately 1367 // computed insets. 1368 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1369 } 1370 1371 if (mSurfaceHolder != null) { 1372 mSurfaceHolder.mSurfaceLock.lock(); 1373 mDrawingAllowed = true; 1374 } 1375 1376 boolean hwInitialized = false; 1377 boolean contentInsetsChanged = false; 1378 boolean visibleInsetsChanged; 1379 boolean hadSurface = mSurface.isValid(); 1380 1381 try { 1382 if (DEBUG_LAYOUT) { 1383 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1384 host.getMeasuredHeight() + ", params=" + params); 1385 } 1386 1387 final int surfaceGenerationId = mSurface.getGenerationId(); 1388 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1389 1390 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1391 + " content=" + mPendingContentInsets.toShortString() 1392 + " visible=" + mPendingVisibleInsets.toShortString() 1393 + " surface=" + mSurface); 1394 1395 if (mPendingConfiguration.seq != 0) { 1396 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1397 + mPendingConfiguration); 1398 updateConfiguration(mPendingConfiguration, !mFirst); 1399 mPendingConfiguration.seq = 0; 1400 } 1401 1402 contentInsetsChanged = !mPendingContentInsets.equals( 1403 mAttachInfo.mContentInsets); 1404 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1405 mAttachInfo.mVisibleInsets); 1406 if (contentInsetsChanged) { 1407 if (mWidth > 0 && mHeight > 0 && lp != null && 1408 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1409 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1410 mSurface != null && mSurface.isValid() && 1411 !mAttachInfo.mTurnOffWindowResizeAnim && 1412 mAttachInfo.mHardwareRenderer != null && 1413 mAttachInfo.mHardwareRenderer.isEnabled() && 1414 mAttachInfo.mHardwareRenderer.validate() && 1415 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1416 1417 disposeResizeBuffer(); 1418 1419 boolean completed = false; 1420 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1421 HardwareCanvas layerCanvas = null; 1422 try { 1423 if (mResizeBuffer == null) { 1424 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1425 mWidth, mHeight, false); 1426 } else if (mResizeBuffer.getWidth() != mWidth || 1427 mResizeBuffer.getHeight() != mHeight) { 1428 mResizeBuffer.resize(mWidth, mHeight); 1429 } 1430 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1431 layerCanvas.setViewport(mWidth, mHeight); 1432 layerCanvas.onPreDraw(null); 1433 final int restoreCount = layerCanvas.save(); 1434 1435 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1436 1437 int yoff; 1438 final boolean scrolling = mScroller != null 1439 && mScroller.computeScrollOffset(); 1440 if (scrolling) { 1441 yoff = mScroller.getCurrY(); 1442 mScroller.abortAnimation(); 1443 } else { 1444 yoff = mScrollY; 1445 } 1446 1447 layerCanvas.translate(0, -yoff); 1448 if (mTranslator != null) { 1449 mTranslator.translateCanvas(layerCanvas); 1450 } 1451 1452 mView.draw(layerCanvas); 1453 1454 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1455 1456 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1457 mResizeBufferDuration = mView.getResources().getInteger( 1458 com.android.internal.R.integer.config_mediumAnimTime); 1459 completed = true; 1460 1461 layerCanvas.restoreToCount(restoreCount); 1462 } catch (OutOfMemoryError e) { 1463 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1464 } finally { 1465 if (layerCanvas != null) { 1466 layerCanvas.onPostDraw(); 1467 } 1468 if (mResizeBuffer != null) { 1469 mResizeBuffer.end(hwRendererCanvas); 1470 if (!completed) { 1471 mResizeBuffer.destroy(); 1472 mResizeBuffer = null; 1473 } 1474 } 1475 } 1476 } 1477 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1478 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1479 + mAttachInfo.mContentInsets); 1480 } 1481 if (contentInsetsChanged || mLastSystemUiVisibility != 1482 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1483 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1484 mFitSystemWindowsRequested = false; 1485 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1486 host.fitSystemWindows(mFitSystemWindowsInsets); 1487 } 1488 if (visibleInsetsChanged) { 1489 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1490 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1491 + mAttachInfo.mVisibleInsets); 1492 } 1493 1494 if (!hadSurface) { 1495 if (mSurface.isValid()) { 1496 // If we are creating a new surface, then we need to 1497 // completely redraw it. Also, when we get to the 1498 // point of drawing it we will hold off and schedule 1499 // a new traversal instead. This is so we can tell the 1500 // window manager about all of the windows being displayed 1501 // before actually drawing them, so it can display then 1502 // all at once. 1503 newSurface = true; 1504 mFullRedrawNeeded = true; 1505 mPreviousTransparentRegion.setEmpty(); 1506 1507 if (mAttachInfo.mHardwareRenderer != null) { 1508 try { 1509 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1510 } catch (Surface.OutOfResourcesException e) { 1511 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1512 try { 1513 if (!sWindowSession.outOfMemory(mWindow)) { 1514 Slog.w(TAG, "No processes killed for memory; killing self"); 1515 Process.killProcess(Process.myPid()); 1516 } 1517 } catch (RemoteException ex) { 1518 } 1519 mLayoutRequested = true; // ask wm for a new surface next time. 1520 return; 1521 } 1522 } 1523 } 1524 } else if (!mSurface.isValid()) { 1525 // If the surface has been removed, then reset the scroll 1526 // positions. 1527 mLastScrolledFocus = null; 1528 mScrollY = mCurScrollY = 0; 1529 if (mScroller != null) { 1530 mScroller.abortAnimation(); 1531 } 1532 disposeResizeBuffer(); 1533 // Our surface is gone 1534 if (mAttachInfo.mHardwareRenderer != null && 1535 mAttachInfo.mHardwareRenderer.isEnabled()) { 1536 mAttachInfo.mHardwareRenderer.destroy(true); 1537 } 1538 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1539 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1540 mFullRedrawNeeded = true; 1541 try { 1542 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1543 } catch (Surface.OutOfResourcesException e) { 1544 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1545 try { 1546 if (!sWindowSession.outOfMemory(mWindow)) { 1547 Slog.w(TAG, "No processes killed for memory; killing self"); 1548 Process.killProcess(Process.myPid()); 1549 } 1550 } catch (RemoteException ex) { 1551 } 1552 mLayoutRequested = true; // ask wm for a new surface next time. 1553 return; 1554 } 1555 } 1556 } catch (RemoteException e) { 1557 } 1558 1559 if (DEBUG_ORIENTATION) Log.v( 1560 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1561 1562 attachInfo.mWindowLeft = frame.left; 1563 attachInfo.mWindowTop = frame.top; 1564 1565 // !!FIXME!! This next section handles the case where we did not get the 1566 // window size we asked for. We should avoid this by getting a maximum size from 1567 // the window session beforehand. 1568 if (mWidth != frame.width() || mHeight != frame.height()) { 1569 mWidth = frame.width(); 1570 mHeight = frame.height(); 1571 } 1572 1573 if (mSurfaceHolder != null) { 1574 // The app owns the surface; tell it about what is going on. 1575 if (mSurface.isValid()) { 1576 // XXX .copyFrom() doesn't work! 1577 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1578 mSurfaceHolder.mSurface = mSurface; 1579 } 1580 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1581 mSurfaceHolder.mSurfaceLock.unlock(); 1582 if (mSurface.isValid()) { 1583 if (!hadSurface) { 1584 mSurfaceHolder.ungetCallbacks(); 1585 1586 mIsCreating = true; 1587 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1588 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1589 if (callbacks != null) { 1590 for (SurfaceHolder.Callback c : callbacks) { 1591 c.surfaceCreated(mSurfaceHolder); 1592 } 1593 } 1594 surfaceChanged = true; 1595 } 1596 if (surfaceChanged) { 1597 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1598 lp.format, mWidth, mHeight); 1599 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1600 if (callbacks != null) { 1601 for (SurfaceHolder.Callback c : callbacks) { 1602 c.surfaceChanged(mSurfaceHolder, lp.format, 1603 mWidth, mHeight); 1604 } 1605 } 1606 } 1607 mIsCreating = false; 1608 } else if (hadSurface) { 1609 mSurfaceHolder.ungetCallbacks(); 1610 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1611 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1612 if (callbacks != null) { 1613 for (SurfaceHolder.Callback c : callbacks) { 1614 c.surfaceDestroyed(mSurfaceHolder); 1615 } 1616 } 1617 mSurfaceHolder.mSurfaceLock.lock(); 1618 try { 1619 mSurfaceHolder.mSurface = new Surface(); 1620 } finally { 1621 mSurfaceHolder.mSurfaceLock.unlock(); 1622 } 1623 } 1624 } 1625 1626 if (mAttachInfo.mHardwareRenderer != null && 1627 mAttachInfo.mHardwareRenderer.isEnabled()) { 1628 if (hwInitialized || windowShouldResize || 1629 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1630 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1631 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1632 if (!hwInitialized) { 1633 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1634 } 1635 } 1636 } 1637 1638 if (!mStopped) { 1639 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1640 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1641 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1642 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1643 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1644 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1645 1646 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1647 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1648 + " mHeight=" + mHeight 1649 + " measuredHeight=" + host.getMeasuredHeight() 1650 + " coveredInsetsChanged=" + contentInsetsChanged); 1651 1652 // Ask host how big it wants to be 1653 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1654 1655 // Implementation of weights from WindowManager.LayoutParams 1656 // We just grow the dimensions as needed and re-measure if 1657 // needs be 1658 int width = host.getMeasuredWidth(); 1659 int height = host.getMeasuredHeight(); 1660 boolean measureAgain = false; 1661 1662 if (lp.horizontalWeight > 0.0f) { 1663 width += (int) ((mWidth - width) * lp.horizontalWeight); 1664 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1665 MeasureSpec.EXACTLY); 1666 measureAgain = true; 1667 } 1668 if (lp.verticalWeight > 0.0f) { 1669 height += (int) ((mHeight - height) * lp.verticalWeight); 1670 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1671 MeasureSpec.EXACTLY); 1672 measureAgain = true; 1673 } 1674 1675 if (measureAgain) { 1676 if (DEBUG_LAYOUT) Log.v(TAG, 1677 "And hey let's measure once more: width=" + width 1678 + " height=" + height); 1679 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1680 } 1681 1682 layoutRequested = true; 1683 } 1684 } 1685 } 1686 1687 final boolean didLayout = layoutRequested && !mStopped; 1688 boolean triggerGlobalLayoutListener = didLayout 1689 || attachInfo.mRecomputeGlobalAttributes; 1690 if (didLayout) { 1691 mLayoutRequested = false; 1692 mScrollMayChange = true; 1693 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1694 TAG, "Laying out " + host + " to (" + 1695 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1696 long startTime = 0L; 1697 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1698 startTime = SystemClock.elapsedRealtime(); 1699 } 1700 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1701 1702 if (false && ViewDebug.consistencyCheckEnabled) { 1703 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1704 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1705 + "please refer to the logs with the tag " 1706 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1707 } 1708 } 1709 1710 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1711 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1712 } 1713 1714 // By this point all views have been sized and positionned 1715 // We can compute the transparent area 1716 1717 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1718 // start out transparent 1719 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1720 host.getLocationInWindow(mTmpLocation); 1721 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1722 mTmpLocation[0] + host.mRight - host.mLeft, 1723 mTmpLocation[1] + host.mBottom - host.mTop); 1724 1725 host.gatherTransparentRegion(mTransparentRegion); 1726 if (mTranslator != null) { 1727 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1728 } 1729 1730 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1731 mPreviousTransparentRegion.set(mTransparentRegion); 1732 // reconfigure window manager 1733 try { 1734 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1735 } catch (RemoteException e) { 1736 } 1737 } 1738 } 1739 1740 if (DBG) { 1741 System.out.println("======================================"); 1742 System.out.println("performTraversals -- after setFrame"); 1743 host.debug(); 1744 } 1745 } 1746 1747 if (triggerGlobalLayoutListener) { 1748 attachInfo.mRecomputeGlobalAttributes = false; 1749 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1750 1751 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1752 postSendWindowContentChangedCallback(mView); 1753 } 1754 } 1755 1756 if (computesInternalInsets) { 1757 // Clear the original insets. 1758 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1759 insets.reset(); 1760 1761 // Compute new insets in place. 1762 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1763 1764 // Tell the window manager. 1765 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1766 mLastGivenInsets.set(insets); 1767 1768 // Translate insets to screen coordinates if needed. 1769 final Rect contentInsets; 1770 final Rect visibleInsets; 1771 final Region touchableRegion; 1772 if (mTranslator != null) { 1773 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1774 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1775 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1776 } else { 1777 contentInsets = insets.contentInsets; 1778 visibleInsets = insets.visibleInsets; 1779 touchableRegion = insets.touchableRegion; 1780 } 1781 1782 try { 1783 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1784 contentInsets, visibleInsets, touchableRegion); 1785 } catch (RemoteException e) { 1786 } 1787 } 1788 } 1789 1790 boolean skipDraw = false; 1791 1792 if (mFirst) { 1793 // handle first focus request 1794 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1795 + mView.hasFocus()); 1796 if (mView != null) { 1797 if (!mView.hasFocus()) { 1798 mView.requestFocus(View.FOCUS_FORWARD); 1799 mFocusedView = mRealFocusedView = mView.findFocus(); 1800 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1801 + mFocusedView); 1802 } else { 1803 mRealFocusedView = mView.findFocus(); 1804 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1805 + mRealFocusedView); 1806 } 1807 } 1808 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1809 // The first time we relayout the window, if the system is 1810 // doing window animations, we want to hold of on any future 1811 // draws until the animation is done. 1812 mWindowsAnimating = true; 1813 } 1814 } else if (mWindowsAnimating) { 1815 skipDraw = true; 1816 } 1817 1818 mFirst = false; 1819 mWillDrawSoon = false; 1820 mNewSurfaceNeeded = false; 1821 mViewVisibility = viewVisibility; 1822 1823 if (mAttachInfo.mHasWindowFocus) { 1824 final boolean imTarget = WindowManager.LayoutParams 1825 .mayUseInputMethod(mWindowAttributes.flags); 1826 if (imTarget != mLastWasImTarget) { 1827 mLastWasImTarget = imTarget; 1828 InputMethodManager imm = InputMethodManager.peekInstance(); 1829 if (imm != null && imTarget) { 1830 imm.startGettingWindowFocus(mView); 1831 imm.onWindowFocus(mView, mView.findFocus(), 1832 mWindowAttributes.softInputMode, 1833 !mHasHadWindowFocus, mWindowAttributes.flags); 1834 } 1835 } 1836 } 1837 1838 // Remember if we must report the next draw. 1839 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1840 mReportNextDraw = true; 1841 } 1842 1843 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1844 viewVisibility != View.VISIBLE; 1845 1846 if (!cancelDraw && !newSurface) { 1847 if (!skipDraw || mReportNextDraw) { 1848 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1849 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1850 mPendingTransitions.get(i).startChangingAnimations(); 1851 } 1852 mPendingTransitions.clear(); 1853 } 1854 1855 performDraw(); 1856 } 1857 } else { 1858 if (viewVisibility == View.VISIBLE) { 1859 // Try again 1860 scheduleTraversals(); 1861 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1862 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1863 mPendingTransitions.get(i).endChangingAnimations(); 1864 } 1865 mPendingTransitions.clear(); 1866 } 1867 } 1868 } 1869 1870 public void requestTransparentRegion(View child) { 1871 // the test below should not fail unless someone is messing with us 1872 checkThread(); 1873 if (mView == child) { 1874 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1875 // Need to make sure we re-evaluate the window attributes next 1876 // time around, to ensure the window has the correct format. 1877 mWindowAttributesChanged = true; 1878 mWindowAttributesChangesFlag = 0; 1879 requestLayout(); 1880 } 1881 } 1882 1883 /** 1884 * Figures out the measure spec for the root view in a window based on it's 1885 * layout params. 1886 * 1887 * @param windowSize 1888 * The available width or height of the window 1889 * 1890 * @param rootDimension 1891 * The layout params for one dimension (width or height) of the 1892 * window. 1893 * 1894 * @return The measure spec to use to measure the root view. 1895 */ 1896 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1897 int measureSpec; 1898 switch (rootDimension) { 1899 1900 case ViewGroup.LayoutParams.MATCH_PARENT: 1901 // Window can't resize. Force root view to be windowSize. 1902 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1903 break; 1904 case ViewGroup.LayoutParams.WRAP_CONTENT: 1905 // Window can resize. Set max size for root view. 1906 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1907 break; 1908 default: 1909 // Window wants to be an exact size. Force root view to be that size. 1910 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1911 break; 1912 } 1913 return measureSpec; 1914 } 1915 1916 int mHardwareYOffset; 1917 int mResizeAlpha; 1918 final Paint mResizePaint = new Paint(); 1919 1920 public void onHardwarePreDraw(HardwareCanvas canvas) { 1921 canvas.translate(0, -mHardwareYOffset); 1922 } 1923 1924 public void onHardwarePostDraw(HardwareCanvas canvas) { 1925 if (mResizeBuffer != null) { 1926 mResizePaint.setAlpha(mResizeAlpha); 1927 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1928 } 1929 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1930 } 1931 1932 /** 1933 * @hide 1934 */ 1935 void outputDisplayList(View view) { 1936 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1937 DisplayList displayList = view.getDisplayList(); 1938 if (displayList != null) { 1939 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1940 } 1941 } 1942 } 1943 1944 /** 1945 * @see #PROPERTY_PROFILE_RENDERING 1946 */ 1947 private void profileRendering(boolean enabled) { 1948 if (mProfileRendering) { 1949 mRenderProfilingEnabled = enabled; 1950 if (mRenderProfiler == null) { 1951 mRenderProfiler = new Thread(new Runnable() { 1952 @Override 1953 public void run() { 1954 Log.d(TAG, "Starting profiling thread"); 1955 while (mRenderProfilingEnabled) { 1956 mAttachInfo.mHandler.post(new Runnable() { 1957 @Override 1958 public void run() { 1959 mDirty.set(0, 0, mWidth, mHeight); 1960 scheduleTraversals(); 1961 } 1962 }); 1963 try { 1964 // TODO: This should use vsync when we get an API 1965 Thread.sleep(15); 1966 } catch (InterruptedException e) { 1967 Log.d(TAG, "Exiting profiling thread"); 1968 } 1969 } 1970 } 1971 }, "Rendering Profiler"); 1972 mRenderProfiler.start(); 1973 } else { 1974 mRenderProfiler.interrupt(); 1975 mRenderProfiler = null; 1976 } 1977 } 1978 } 1979 1980 /** 1981 * Called from draw() when DEBUG_FPS is enabled 1982 */ 1983 private void trackFPS() { 1984 // Tracks frames per second drawn. First value in a series of draws may be bogus 1985 // because it down not account for the intervening idle time 1986 long nowTime = System.currentTimeMillis(); 1987 if (mFpsStartTime < 0) { 1988 mFpsStartTime = mFpsPrevTime = nowTime; 1989 mFpsNumFrames = 0; 1990 } else { 1991 ++mFpsNumFrames; 1992 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1993 long frameTime = nowTime - mFpsPrevTime; 1994 long totalTime = nowTime - mFpsStartTime; 1995 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1996 mFpsPrevTime = nowTime; 1997 if (totalTime > 1000) { 1998 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1999 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2000 mFpsStartTime = nowTime; 2001 mFpsNumFrames = 0; 2002 } 2003 } 2004 } 2005 2006 private void performDraw() { 2007 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2008 return; 2009 } 2010 2011 final long drawStartTime; 2012 if (ViewDebug.DEBUG_LATENCY) { 2013 drawStartTime = System.nanoTime(); 2014 if (mLastDrawFinishedTimeNanos != 0) { 2015 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 2016 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 2017 + "ms since the last draw finished."); 2018 } else { 2019 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 2020 } 2021 } 2022 2023 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2024 mFullRedrawNeeded = false; 2025 2026 mIsDrawing = true; 2027 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2028 try { 2029 draw(fullRedrawNeeded); 2030 } finally { 2031 mIsDrawing = false; 2032 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2033 } 2034 2035 if (ViewDebug.DEBUG_LATENCY) { 2036 long now = System.nanoTime(); 2037 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 2038 + ((now - drawStartTime) * 0.000001f) 2039 + "ms."); 2040 mLastDrawFinishedTimeNanos = now; 2041 } 2042 2043 if (mReportNextDraw) { 2044 mReportNextDraw = false; 2045 2046 if (LOCAL_LOGV) { 2047 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2048 } 2049 if (mSurfaceHolder != null && mSurface.isValid()) { 2050 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2051 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2052 if (callbacks != null) { 2053 for (SurfaceHolder.Callback c : callbacks) { 2054 if (c instanceof SurfaceHolder.Callback2) { 2055 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2056 mSurfaceHolder); 2057 } 2058 } 2059 } 2060 } 2061 try { 2062 sWindowSession.finishDrawing(mWindow); 2063 } catch (RemoteException e) { 2064 } 2065 } 2066 } 2067 2068 private void draw(boolean fullRedrawNeeded) { 2069 Surface surface = mSurface; 2070 if (surface == null || !surface.isValid()) { 2071 return; 2072 } 2073 2074 if (DEBUG_FPS) { 2075 trackFPS(); 2076 } 2077 2078 if (!sFirstDrawComplete) { 2079 synchronized (sFirstDrawHandlers) { 2080 sFirstDrawComplete = true; 2081 final int count = sFirstDrawHandlers.size(); 2082 for (int i = 0; i< count; i++) { 2083 mHandler.post(sFirstDrawHandlers.get(i)); 2084 } 2085 } 2086 } 2087 2088 scrollToRectOrFocus(null, false); 2089 2090 final AttachInfo attachInfo = mAttachInfo; 2091 if (attachInfo.mViewScrollChanged) { 2092 attachInfo.mViewScrollChanged = false; 2093 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2094 } 2095 2096 int yoff; 2097 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2098 if (animating) { 2099 yoff = mScroller.getCurrY(); 2100 } else { 2101 yoff = mScrollY; 2102 } 2103 if (mCurScrollY != yoff) { 2104 mCurScrollY = yoff; 2105 fullRedrawNeeded = true; 2106 } 2107 2108 final float appScale = attachInfo.mApplicationScale; 2109 final boolean scalingRequired = attachInfo.mScalingRequired; 2110 2111 int resizeAlpha = 0; 2112 if (mResizeBuffer != null) { 2113 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2114 if (deltaTime < mResizeBufferDuration) { 2115 float amt = deltaTime/(float) mResizeBufferDuration; 2116 amt = mResizeInterpolator.getInterpolation(amt); 2117 animating = true; 2118 resizeAlpha = 255 - (int)(amt*255); 2119 } else { 2120 disposeResizeBuffer(); 2121 } 2122 } 2123 2124 final Rect dirty = mDirty; 2125 if (mSurfaceHolder != null) { 2126 // The app owns the surface, we won't draw. 2127 dirty.setEmpty(); 2128 if (animating) { 2129 if (mScroller != null) { 2130 mScroller.abortAnimation(); 2131 } 2132 disposeResizeBuffer(); 2133 } 2134 return; 2135 } 2136 2137 if (fullRedrawNeeded) { 2138 attachInfo.mIgnoreDirtyState = true; 2139 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2140 } 2141 2142 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2143 Log.v(TAG, "Draw " + mView + "/" 2144 + mWindowAttributes.getTitle() 2145 + ": dirty={" + dirty.left + "," + dirty.top 2146 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2147 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2148 appScale + ", width=" + mWidth + ", height=" + mHeight); 2149 } 2150 2151 attachInfo.mTreeObserver.dispatchOnDraw(); 2152 2153 if (!dirty.isEmpty() || mIsAnimating) { 2154 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2155 // Draw with hardware renderer. 2156 mIsAnimating = false; 2157 mHardwareYOffset = yoff; 2158 mResizeAlpha = resizeAlpha; 2159 2160 mCurrentDirty.set(dirty); 2161 mCurrentDirty.union(mPreviousDirty); 2162 mPreviousDirty.set(dirty); 2163 dirty.setEmpty(); 2164 2165 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2166 animating ? null : mCurrentDirty)) { 2167 mPreviousDirty.set(0, 0, mWidth, mHeight); 2168 } 2169 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2170 return; 2171 } 2172 } 2173 2174 if (animating) { 2175 mFullRedrawNeeded = true; 2176 scheduleTraversals(); 2177 } 2178 } 2179 2180 /** 2181 * @return true if drawing was succesfull, false if an error occurred 2182 */ 2183 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2184 boolean scalingRequired, Rect dirty) { 2185 2186 // Draw with software renderer. 2187 Canvas canvas; 2188 try { 2189 int left = dirty.left; 2190 int top = dirty.top; 2191 int right = dirty.right; 2192 int bottom = dirty.bottom; 2193 2194 final long lockCanvasStartTime; 2195 if (ViewDebug.DEBUG_LATENCY) { 2196 lockCanvasStartTime = System.nanoTime(); 2197 } 2198 2199 canvas = mSurface.lockCanvas(dirty); 2200 2201 if (ViewDebug.DEBUG_LATENCY) { 2202 long now = System.nanoTime(); 2203 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2204 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2205 } 2206 2207 if (left != dirty.left || top != dirty.top || right != dirty.right || 2208 bottom != dirty.bottom) { 2209 attachInfo.mIgnoreDirtyState = true; 2210 } 2211 2212 // TODO: Do this in native 2213 canvas.setDensity(mDensity); 2214 } catch (Surface.OutOfResourcesException e) { 2215 Log.e(TAG, "OutOfResourcesException locking surface", e); 2216 try { 2217 if (!sWindowSession.outOfMemory(mWindow)) { 2218 Slog.w(TAG, "No processes killed for memory; killing self"); 2219 Process.killProcess(Process.myPid()); 2220 } 2221 } catch (RemoteException ex) { 2222 } 2223 mLayoutRequested = true; // ask wm for a new surface next time. 2224 return false; 2225 } catch (IllegalArgumentException e) { 2226 Log.e(TAG, "IllegalArgumentException locking surface", e); 2227 // Don't assume this is due to out of memory, it could be 2228 // something else, and if it is something else then we could 2229 // kill stuff (or ourself) for no reason. 2230 mLayoutRequested = true; // ask wm for a new surface next time. 2231 return false; 2232 } 2233 2234 try { 2235 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2236 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2237 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2238 //canvas.drawARGB(255, 255, 0, 0); 2239 } 2240 2241 long startTime = 0L; 2242 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2243 startTime = SystemClock.elapsedRealtime(); 2244 } 2245 2246 // If this bitmap's format includes an alpha channel, we 2247 // need to clear it before drawing so that the child will 2248 // properly re-composite its drawing on a transparent 2249 // background. This automatically respects the clip/dirty region 2250 // or 2251 // If we are applying an offset, we need to clear the area 2252 // where the offset doesn't appear to avoid having garbage 2253 // left in the blank areas. 2254 if (!canvas.isOpaque() || yoff != 0) { 2255 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2256 } 2257 2258 dirty.setEmpty(); 2259 mIsAnimating = false; 2260 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2261 mView.mPrivateFlags |= View.DRAWN; 2262 2263 if (DEBUG_DRAW) { 2264 Context cxt = mView.getContext(); 2265 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2266 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2267 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2268 } 2269 try { 2270 canvas.translate(0, -yoff); 2271 if (mTranslator != null) { 2272 mTranslator.translateCanvas(canvas); 2273 } 2274 canvas.setScreenDensity(scalingRequired 2275 ? DisplayMetrics.DENSITY_DEVICE : 0); 2276 attachInfo.mSetIgnoreDirtyState = false; 2277 2278 final long drawStartTime; 2279 if (ViewDebug.DEBUG_LATENCY) { 2280 drawStartTime = System.nanoTime(); 2281 } 2282 2283 mView.draw(canvas); 2284 2285 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2286 2287 if (ViewDebug.DEBUG_LATENCY) { 2288 long now = System.nanoTime(); 2289 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2290 + ((now - drawStartTime) * 0.000001f) + "ms"); 2291 } 2292 } finally { 2293 if (!attachInfo.mSetIgnoreDirtyState) { 2294 // Only clear the flag if it was not set during the mView.draw() call 2295 attachInfo.mIgnoreDirtyState = false; 2296 } 2297 } 2298 2299 if (false && ViewDebug.consistencyCheckEnabled) { 2300 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2301 } 2302 2303 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2304 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2305 } 2306 } finally { 2307 final long unlockCanvasAndPostStartTime; 2308 if (ViewDebug.DEBUG_LATENCY) { 2309 unlockCanvasAndPostStartTime = System.nanoTime(); 2310 } 2311 2312 surface.unlockCanvasAndPost(canvas); 2313 2314 if (ViewDebug.DEBUG_LATENCY) { 2315 long now = System.nanoTime(); 2316 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2317 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2318 } 2319 2320 if (LOCAL_LOGV) { 2321 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2322 } 2323 } 2324 return true; 2325 } 2326 2327 @Override 2328 public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 2329 if (descendant.includeForAccessibility()) { 2330 return descendant; 2331 } 2332 return null; 2333 } 2334 2335 /** 2336 * We want to draw a highlight around the current accessibility focused. 2337 * Since adding a style for all possible view is not a viable option we 2338 * have this specialized drawing method. 2339 * 2340 * Note: We are doing this here to be able to draw the highlight for 2341 * virtual views in addition to real ones. 2342 * 2343 * @param canvas The canvas on which to draw. 2344 */ 2345 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2346 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2347 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2348 return; 2349 } 2350 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2351 return; 2352 } 2353 Drawable drawable = getAccessibilityFocusedDrawable(); 2354 if (drawable == null) { 2355 return; 2356 } 2357 AccessibilityNodeProvider provider = 2358 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2359 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2360 if (provider == null) { 2361 mAccessibilityFocusedHost.getDrawingRect(bounds); 2362 if (mView instanceof ViewGroup) { 2363 ViewGroup viewGroup = (ViewGroup) mView; 2364 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2365 } 2366 } else { 2367 if (mAccessibilityFocusedVirtualView == null) { 2368 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2369 } 2370 if (mAccessibilityFocusedVirtualView == null) { 2371 return; 2372 } 2373 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2374 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2375 } 2376 drawable.setBounds(bounds); 2377 drawable.draw(canvas); 2378 } 2379 2380 private Drawable getAccessibilityFocusedDrawable() { 2381 if (mAttachInfo != null) { 2382 // Lazily load the accessibility focus drawable. 2383 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2384 TypedValue value = new TypedValue(); 2385 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2386 R.attr.accessibilityFocusedDrawable, value, true); 2387 if (resolved) { 2388 mAttachInfo.mAccessibilityFocusDrawable = 2389 mView.mContext.getResources().getDrawable(value.resourceId); 2390 } 2391 } 2392 return mAttachInfo.mAccessibilityFocusDrawable; 2393 } 2394 return null; 2395 } 2396 2397 void invalidateDisplayLists() { 2398 final ArrayList<DisplayList> displayLists = mDisplayLists; 2399 final int count = displayLists.size(); 2400 2401 for (int i = 0; i < count; i++) { 2402 displayLists.get(i).invalidate(); 2403 } 2404 2405 displayLists.clear(); 2406 } 2407 2408 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2409 final View.AttachInfo attachInfo = mAttachInfo; 2410 final Rect ci = attachInfo.mContentInsets; 2411 final Rect vi = attachInfo.mVisibleInsets; 2412 int scrollY = 0; 2413 boolean handled = false; 2414 2415 if (vi.left > ci.left || vi.top > ci.top 2416 || vi.right > ci.right || vi.bottom > ci.bottom) { 2417 // We'll assume that we aren't going to change the scroll 2418 // offset, since we want to avoid that unless it is actually 2419 // going to make the focus visible... otherwise we scroll 2420 // all over the place. 2421 scrollY = mScrollY; 2422 // We can be called for two different situations: during a draw, 2423 // to update the scroll position if the focus has changed (in which 2424 // case 'rectangle' is null), or in response to a 2425 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2426 // is non-null and we just want to scroll to whatever that 2427 // rectangle is). 2428 View focus = mRealFocusedView; 2429 2430 // When in touch mode, focus points to the previously focused view, 2431 // which may have been removed from the view hierarchy. The following 2432 // line checks whether the view is still in our hierarchy. 2433 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2434 mRealFocusedView = null; 2435 return false; 2436 } 2437 2438 if (focus != mLastScrolledFocus) { 2439 // If the focus has changed, then ignore any requests to scroll 2440 // to a rectangle; first we want to make sure the entire focus 2441 // view is visible. 2442 rectangle = null; 2443 } 2444 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2445 + " rectangle=" + rectangle + " ci=" + ci 2446 + " vi=" + vi); 2447 if (focus == mLastScrolledFocus && !mScrollMayChange 2448 && rectangle == null) { 2449 // Optimization: if the focus hasn't changed since last 2450 // time, and no layout has happened, then just leave things 2451 // as they are. 2452 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2453 + mScrollY + " vi=" + vi.toShortString()); 2454 } else if (focus != null) { 2455 // We need to determine if the currently focused view is 2456 // within the visible part of the window and, if not, apply 2457 // a pan so it can be seen. 2458 mLastScrolledFocus = focus; 2459 mScrollMayChange = false; 2460 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2461 // Try to find the rectangle from the focus view. 2462 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2463 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2464 + mView.getWidth() + " h=" + mView.getHeight() 2465 + " ci=" + ci.toShortString() 2466 + " vi=" + vi.toShortString()); 2467 if (rectangle == null) { 2468 focus.getFocusedRect(mTempRect); 2469 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2470 + ": focusRect=" + mTempRect.toShortString()); 2471 if (mView instanceof ViewGroup) { 2472 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2473 focus, mTempRect); 2474 } 2475 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2476 "Focus in window: focusRect=" 2477 + mTempRect.toShortString() 2478 + " visRect=" + mVisRect.toShortString()); 2479 } else { 2480 mTempRect.set(rectangle); 2481 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2482 "Request scroll to rect: " 2483 + mTempRect.toShortString() 2484 + " visRect=" + mVisRect.toShortString()); 2485 } 2486 if (mTempRect.intersect(mVisRect)) { 2487 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2488 "Focus window visible rect: " 2489 + mTempRect.toShortString()); 2490 if (mTempRect.height() > 2491 (mView.getHeight()-vi.top-vi.bottom)) { 2492 // If the focus simply is not going to fit, then 2493 // best is probably just to leave things as-is. 2494 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2495 "Too tall; leaving scrollY=" + scrollY); 2496 } else if ((mTempRect.top-scrollY) < vi.top) { 2497 scrollY -= vi.top - (mTempRect.top-scrollY); 2498 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2499 "Top covered; scrollY=" + scrollY); 2500 } else if ((mTempRect.bottom-scrollY) 2501 > (mView.getHeight()-vi.bottom)) { 2502 scrollY += (mTempRect.bottom-scrollY) 2503 - (mView.getHeight()-vi.bottom); 2504 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2505 "Bottom covered; scrollY=" + scrollY); 2506 } 2507 handled = true; 2508 } 2509 } 2510 } 2511 } 2512 2513 if (scrollY != mScrollY) { 2514 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2515 + mScrollY + " , new=" + scrollY); 2516 if (!immediate && mResizeBuffer == null) { 2517 if (mScroller == null) { 2518 mScroller = new Scroller(mView.getContext()); 2519 } 2520 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2521 } else if (mScroller != null) { 2522 mScroller.abortAnimation(); 2523 } 2524 mScrollY = scrollY; 2525 } 2526 2527 return handled; 2528 } 2529 2530 /** 2531 * @hide 2532 */ 2533 public View getAccessibilityFocusedHost() { 2534 return mAccessibilityFocusedHost; 2535 } 2536 2537 /** 2538 * @hide 2539 */ 2540 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2541 return mAccessibilityFocusedVirtualView; 2542 } 2543 2544 void setAccessibilityFocusedHost(View host) { 2545 // If we have a virtual view with accessibility focus we need 2546 // to clear the focus and invalidate the virtual view bounds. 2547 if (mAccessibilityFocusedVirtualView != null) { 2548 2549 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2550 View focusHost = mAccessibilityFocusedHost; 2551 focusHost.clearAccessibilityFocusNoCallbacks(); 2552 2553 // Wipe the state of the current accessibility focus since 2554 // the call into the provider to clear accessibility focus 2555 // will fire an accessibility event which will end up calling 2556 // this method and we want to have clean state when this 2557 // invocation happens. 2558 mAccessibilityFocusedHost = null; 2559 mAccessibilityFocusedVirtualView = null; 2560 2561 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2562 if (provider != null) { 2563 // Invalidate the area of the cleared accessibility focus. 2564 focusNode.getBoundsInParent(mTempRect); 2565 focusHost.invalidate(mTempRect); 2566 // Clear accessibility focus in the virtual node. 2567 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2568 focusNode.getSourceNodeId()); 2569 provider.performAction(virtualNodeId, 2570 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2571 } 2572 } 2573 if (mAccessibilityFocusedHost != null) { 2574 // Clear accessibility focus in the view. 2575 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2576 } 2577 2578 // Set the new focus host. 2579 mAccessibilityFocusedHost = host; 2580 2581 // If the host has a provide find the virtual descendant that has focus. 2582 if (mAccessibilityFocusedHost != null) { 2583 AccessibilityNodeProvider provider = 2584 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2585 if (provider != null) { 2586 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2587 return; 2588 } 2589 } 2590 } 2591 2592 public void requestChildFocus(View child, View focused) { 2593 checkThread(); 2594 2595 if (DEBUG_INPUT_RESIZE) { 2596 Log.v(TAG, "Request child focus: focus now " + focused); 2597 } 2598 2599 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2600 scheduleTraversals(); 2601 2602 mFocusedView = mRealFocusedView = focused; 2603 } 2604 2605 public void clearChildFocus(View child) { 2606 checkThread(); 2607 2608 if (DEBUG_INPUT_RESIZE) { 2609 Log.v(TAG, "Clearing child focus"); 2610 } 2611 2612 mOldFocusedView = mFocusedView; 2613 2614 // Invoke the listener only if there is no view to take focus 2615 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2616 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2617 } 2618 2619 mFocusedView = mRealFocusedView = null; 2620 } 2621 2622 @Override 2623 public ViewParent getParentForAccessibility() { 2624 return null; 2625 } 2626 2627 public void focusableViewAvailable(View v) { 2628 checkThread(); 2629 if (mView != null) { 2630 if (!mView.hasFocus()) { 2631 v.requestFocus(); 2632 } else { 2633 // the one case where will transfer focus away from the current one 2634 // is if the current view is a view group that prefers to give focus 2635 // to its children first AND the view is a descendant of it. 2636 mFocusedView = mView.findFocus(); 2637 boolean descendantsHaveDibsOnFocus = 2638 (mFocusedView instanceof ViewGroup) && 2639 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2640 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2641 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2642 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2643 v.requestFocus(); 2644 } 2645 } 2646 } 2647 } 2648 2649 public void recomputeViewAttributes(View child) { 2650 checkThread(); 2651 if (mView == child) { 2652 mAttachInfo.mRecomputeGlobalAttributes = true; 2653 if (!mWillDrawSoon) { 2654 scheduleTraversals(); 2655 } 2656 } 2657 } 2658 2659 void dispatchDetachedFromWindow() { 2660 if (mView != null && mView.mAttachInfo != null) { 2661 if (mAttachInfo.mHardwareRenderer != null && 2662 mAttachInfo.mHardwareRenderer.isEnabled()) { 2663 mAttachInfo.mHardwareRenderer.validate(); 2664 } 2665 mView.dispatchDetachedFromWindow(); 2666 } 2667 2668 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2669 mAccessibilityManager.removeAccessibilityStateChangeListener( 2670 mAccessibilityInteractionConnectionManager); 2671 removeSendWindowContentChangedCallback(); 2672 2673 destroyHardwareRenderer(); 2674 2675 setAccessibilityFocusedHost(null); 2676 2677 mView = null; 2678 mAttachInfo.mRootView = null; 2679 mAttachInfo.mSurface = null; 2680 2681 mSurface.release(); 2682 2683 if (mInputQueueCallback != null && mInputQueue != null) { 2684 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2685 mInputQueueCallback = null; 2686 mInputQueue = null; 2687 } else if (mInputEventReceiver != null) { 2688 mInputEventReceiver.dispose(); 2689 mInputEventReceiver = null; 2690 } 2691 try { 2692 sWindowSession.remove(mWindow); 2693 } catch (RemoteException e) { 2694 } 2695 2696 // Dispose the input channel after removing the window so the Window Manager 2697 // doesn't interpret the input channel being closed as an abnormal termination. 2698 if (mInputChannel != null) { 2699 mInputChannel.dispose(); 2700 mInputChannel = null; 2701 } 2702 2703 unscheduleTraversals(); 2704 } 2705 2706 void updateConfiguration(Configuration config, boolean force) { 2707 if (DEBUG_CONFIGURATION) Log.v(TAG, 2708 "Applying new config to window " 2709 + mWindowAttributes.getTitle() 2710 + ": " + config); 2711 2712 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2713 if (ci != null) { 2714 config = new Configuration(config); 2715 ci.applyToConfiguration(config); 2716 } 2717 2718 synchronized (sConfigCallbacks) { 2719 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2720 sConfigCallbacks.get(i).onConfigurationChanged(config); 2721 } 2722 } 2723 if (mView != null) { 2724 // At this point the resources have been updated to 2725 // have the most recent config, whatever that is. Use 2726 // the on in them which may be newer. 2727 config = mView.getResources().getConfiguration(); 2728 if (force || mLastConfiguration.diff(config) != 0) { 2729 mLastConfiguration.setTo(config); 2730 mView.dispatchConfigurationChanged(config); 2731 } 2732 } 2733 } 2734 2735 /** 2736 * Return true if child is an ancestor of parent, (or equal to the parent). 2737 */ 2738 public static boolean isViewDescendantOf(View child, View parent) { 2739 if (child == parent) { 2740 return true; 2741 } 2742 2743 final ViewParent theParent = child.getParent(); 2744 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2745 } 2746 2747 private static void forceLayout(View view) { 2748 view.forceLayout(); 2749 if (view instanceof ViewGroup) { 2750 ViewGroup group = (ViewGroup) view; 2751 final int count = group.getChildCount(); 2752 for (int i = 0; i < count; i++) { 2753 forceLayout(group.getChildAt(i)); 2754 } 2755 } 2756 } 2757 2758 private final static int MSG_INVALIDATE = 1; 2759 private final static int MSG_INVALIDATE_RECT = 2; 2760 private final static int MSG_DIE = 3; 2761 private final static int MSG_RESIZED = 4; 2762 private final static int MSG_RESIZED_REPORT = 5; 2763 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2764 private final static int MSG_DISPATCH_KEY = 7; 2765 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2766 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2767 private final static int MSG_IME_FINISHED_EVENT = 10; 2768 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2769 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2770 private final static int MSG_CHECK_FOCUS = 13; 2771 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2772 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2773 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2774 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2775 private final static int MSG_UPDATE_CONFIGURATION = 18; 2776 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2777 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2778 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2779 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2780 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2781 private final static int MSG_INVALIDATE_WORLD = 24; 2782 2783 final class ViewRootHandler extends Handler { 2784 @Override 2785 public String getMessageName(Message message) { 2786 switch (message.what) { 2787 case MSG_INVALIDATE: 2788 return "MSG_INVALIDATE"; 2789 case MSG_INVALIDATE_RECT: 2790 return "MSG_INVALIDATE_RECT"; 2791 case MSG_DIE: 2792 return "MSG_DIE"; 2793 case MSG_RESIZED: 2794 return "MSG_RESIZED"; 2795 case MSG_RESIZED_REPORT: 2796 return "MSG_RESIZED_REPORT"; 2797 case MSG_WINDOW_FOCUS_CHANGED: 2798 return "MSG_WINDOW_FOCUS_CHANGED"; 2799 case MSG_DISPATCH_KEY: 2800 return "MSG_DISPATCH_KEY"; 2801 case MSG_DISPATCH_APP_VISIBILITY: 2802 return "MSG_DISPATCH_APP_VISIBILITY"; 2803 case MSG_DISPATCH_GET_NEW_SURFACE: 2804 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2805 case MSG_IME_FINISHED_EVENT: 2806 return "MSG_IME_FINISHED_EVENT"; 2807 case MSG_DISPATCH_KEY_FROM_IME: 2808 return "MSG_DISPATCH_KEY_FROM_IME"; 2809 case MSG_FINISH_INPUT_CONNECTION: 2810 return "MSG_FINISH_INPUT_CONNECTION"; 2811 case MSG_CHECK_FOCUS: 2812 return "MSG_CHECK_FOCUS"; 2813 case MSG_CLOSE_SYSTEM_DIALOGS: 2814 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2815 case MSG_DISPATCH_DRAG_EVENT: 2816 return "MSG_DISPATCH_DRAG_EVENT"; 2817 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2818 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2819 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2820 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2821 case MSG_UPDATE_CONFIGURATION: 2822 return "MSG_UPDATE_CONFIGURATION"; 2823 case MSG_PROCESS_INPUT_EVENTS: 2824 return "MSG_PROCESS_INPUT_EVENTS"; 2825 case MSG_DISPATCH_SCREEN_STATE: 2826 return "MSG_DISPATCH_SCREEN_STATE"; 2827 case MSG_INVALIDATE_DISPLAY_LIST: 2828 return "MSG_INVALIDATE_DISPLAY_LIST"; 2829 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2830 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2831 case MSG_DISPATCH_DONE_ANIMATING: 2832 return "MSG_DISPATCH_DONE_ANIMATING"; 2833 } 2834 return super.getMessageName(message); 2835 } 2836 2837 @Override 2838 public void handleMessage(Message msg) { 2839 switch (msg.what) { 2840 case MSG_INVALIDATE: 2841 ((View) msg.obj).invalidate(); 2842 break; 2843 case MSG_INVALIDATE_RECT: 2844 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2845 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2846 info.release(); 2847 break; 2848 case MSG_IME_FINISHED_EVENT: 2849 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2850 break; 2851 case MSG_PROCESS_INPUT_EVENTS: 2852 mProcessInputEventsScheduled = false; 2853 doProcessInputEvents(); 2854 break; 2855 case MSG_DISPATCH_APP_VISIBILITY: 2856 handleAppVisibility(msg.arg1 != 0); 2857 break; 2858 case MSG_DISPATCH_GET_NEW_SURFACE: 2859 handleGetNewSurface(); 2860 break; 2861 case MSG_RESIZED: 2862 ResizedInfo ri = (ResizedInfo)msg.obj; 2863 2864 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2865 && mPendingContentInsets.equals(ri.contentInsets) 2866 && mPendingVisibleInsets.equals(ri.visibleInsets) 2867 && ((ResizedInfo)msg.obj).newConfig == null) { 2868 break; 2869 } 2870 // fall through... 2871 case MSG_RESIZED_REPORT: 2872 if (mAdded) { 2873 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2874 if (config != null) { 2875 updateConfiguration(config, false); 2876 } 2877 mWinFrame.left = 0; 2878 mWinFrame.right = msg.arg1; 2879 mWinFrame.top = 0; 2880 mWinFrame.bottom = msg.arg2; 2881 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2882 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2883 if (msg.what == MSG_RESIZED_REPORT) { 2884 mReportNextDraw = true; 2885 } 2886 2887 if (mView != null) { 2888 forceLayout(mView); 2889 } 2890 requestLayout(); 2891 } 2892 break; 2893 case MSG_WINDOW_FOCUS_CHANGED: { 2894 if (mAdded) { 2895 boolean hasWindowFocus = msg.arg1 != 0; 2896 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2897 2898 profileRendering(hasWindowFocus); 2899 2900 if (hasWindowFocus) { 2901 boolean inTouchMode = msg.arg2 != 0; 2902 ensureTouchModeLocally(inTouchMode); 2903 2904 if (mAttachInfo.mHardwareRenderer != null && 2905 mSurface != null && mSurface.isValid()) { 2906 mFullRedrawNeeded = true; 2907 try { 2908 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2909 mHolder); 2910 } catch (Surface.OutOfResourcesException e) { 2911 Log.e(TAG, "OutOfResourcesException locking surface", e); 2912 try { 2913 if (!sWindowSession.outOfMemory(mWindow)) { 2914 Slog.w(TAG, "No processes killed for memory; killing self"); 2915 Process.killProcess(Process.myPid()); 2916 } 2917 } catch (RemoteException ex) { 2918 } 2919 // Retry in a bit. 2920 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2921 return; 2922 } 2923 } 2924 } 2925 2926 mLastWasImTarget = WindowManager.LayoutParams 2927 .mayUseInputMethod(mWindowAttributes.flags); 2928 2929 InputMethodManager imm = InputMethodManager.peekInstance(); 2930 if (mView != null) { 2931 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2932 imm.startGettingWindowFocus(mView); 2933 } 2934 mAttachInfo.mKeyDispatchState.reset(); 2935 mView.dispatchWindowFocusChanged(hasWindowFocus); 2936 } 2937 2938 // Note: must be done after the focus change callbacks, 2939 // so all of the view state is set up correctly. 2940 if (hasWindowFocus) { 2941 if (imm != null && mLastWasImTarget) { 2942 imm.onWindowFocus(mView, mView.findFocus(), 2943 mWindowAttributes.softInputMode, 2944 !mHasHadWindowFocus, mWindowAttributes.flags); 2945 } 2946 // Clear the forward bit. We can just do this directly, since 2947 // the window manager doesn't care about it. 2948 mWindowAttributes.softInputMode &= 2949 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2950 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2951 .softInputMode &= 2952 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2953 mHasHadWindowFocus = true; 2954 } 2955 2956 setAccessibilityFocusedHost(null); 2957 2958 if (mView != null && mAccessibilityManager.isEnabled()) { 2959 if (hasWindowFocus) { 2960 mView.sendAccessibilityEvent( 2961 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2962 // Give accessibility focus to the view that has input 2963 // focus if such, otherwise to the first one. 2964 if (mView instanceof ViewGroup) { 2965 ViewGroup viewGroup = (ViewGroup) mView; 2966 View focused = viewGroup.findFocus(); 2967 if (focused != null) { 2968 focused.requestAccessibilityFocus(); 2969 } 2970 } 2971 // There is no accessibility focus, despite our effort 2972 // above, now just give it to the first view. 2973 if (mAccessibilityFocusedHost == null) { 2974 mView.requestAccessibilityFocus(); 2975 } 2976 } 2977 } 2978 } 2979 } break; 2980 case MSG_DIE: 2981 doDie(); 2982 break; 2983 case MSG_DISPATCH_KEY: { 2984 KeyEvent event = (KeyEvent)msg.obj; 2985 enqueueInputEvent(event, null, 0, true); 2986 } break; 2987 case MSG_DISPATCH_KEY_FROM_IME: { 2988 if (LOCAL_LOGV) Log.v( 2989 TAG, "Dispatching key " 2990 + msg.obj + " from IME to " + mView); 2991 KeyEvent event = (KeyEvent)msg.obj; 2992 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2993 // The IME is trying to say this event is from the 2994 // system! Bad bad bad! 2995 //noinspection UnusedAssignment 2996 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2997 } 2998 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2999 } break; 3000 case MSG_FINISH_INPUT_CONNECTION: { 3001 InputMethodManager imm = InputMethodManager.peekInstance(); 3002 if (imm != null) { 3003 imm.reportFinishInputConnection((InputConnection)msg.obj); 3004 } 3005 } break; 3006 case MSG_CHECK_FOCUS: { 3007 InputMethodManager imm = InputMethodManager.peekInstance(); 3008 if (imm != null) { 3009 imm.checkFocus(); 3010 } 3011 } break; 3012 case MSG_CLOSE_SYSTEM_DIALOGS: { 3013 if (mView != null) { 3014 mView.onCloseSystemDialogs((String)msg.obj); 3015 } 3016 } break; 3017 case MSG_DISPATCH_DRAG_EVENT: 3018 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3019 DragEvent event = (DragEvent)msg.obj; 3020 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3021 handleDragEvent(event); 3022 } break; 3023 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3024 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3025 } break; 3026 case MSG_UPDATE_CONFIGURATION: { 3027 Configuration config = (Configuration)msg.obj; 3028 if (config.isOtherSeqNewer(mLastConfiguration)) { 3029 config = mLastConfiguration; 3030 } 3031 updateConfiguration(config, false); 3032 } break; 3033 case MSG_DISPATCH_SCREEN_STATE: { 3034 if (mView != null) { 3035 handleScreenStateChange(msg.arg1 == 1); 3036 } 3037 } break; 3038 case MSG_INVALIDATE_DISPLAY_LIST: { 3039 invalidateDisplayLists(); 3040 } break; 3041 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3042 setAccessibilityFocusedHost(null); 3043 } break; 3044 case MSG_DISPATCH_DONE_ANIMATING: { 3045 handleDispatchDoneAnimating(); 3046 } break; 3047 case MSG_INVALIDATE_WORLD: { 3048 invalidateWorld(mView); 3049 } break; 3050 } 3051 } 3052 } 3053 3054 final ViewRootHandler mHandler = new ViewRootHandler(); 3055 3056 /** 3057 * Something in the current window tells us we need to change the touch mode. For 3058 * example, we are not in touch mode, and the user touches the screen. 3059 * 3060 * If the touch mode has changed, tell the window manager, and handle it locally. 3061 * 3062 * @param inTouchMode Whether we want to be in touch mode. 3063 * @return True if the touch mode changed and focus changed was changed as a result 3064 */ 3065 boolean ensureTouchMode(boolean inTouchMode) { 3066 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3067 + "touch mode is " + mAttachInfo.mInTouchMode); 3068 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3069 3070 // tell the window manager 3071 try { 3072 sWindowSession.setInTouchMode(inTouchMode); 3073 } catch (RemoteException e) { 3074 throw new RuntimeException(e); 3075 } 3076 3077 // handle the change 3078 return ensureTouchModeLocally(inTouchMode); 3079 } 3080 3081 /** 3082 * Ensure that the touch mode for this window is set, and if it is changing, 3083 * take the appropriate action. 3084 * @param inTouchMode Whether we want to be in touch mode. 3085 * @return True if the touch mode changed and focus changed was changed as a result 3086 */ 3087 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3088 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3089 + "touch mode is " + mAttachInfo.mInTouchMode); 3090 3091 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3092 3093 mAttachInfo.mInTouchMode = inTouchMode; 3094 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3095 3096 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3097 } 3098 3099 private boolean enterTouchMode() { 3100 if (mView != null) { 3101 if (mView.hasFocus()) { 3102 // note: not relying on mFocusedView here because this could 3103 // be when the window is first being added, and mFocused isn't 3104 // set yet. 3105 final View focused = mView.findFocus(); 3106 if (focused != null && !focused.isFocusableInTouchMode()) { 3107 3108 final ViewGroup ancestorToTakeFocus = 3109 findAncestorToTakeFocusInTouchMode(focused); 3110 if (ancestorToTakeFocus != null) { 3111 // there is an ancestor that wants focus after its descendants that 3112 // is focusable in touch mode.. give it focus 3113 return ancestorToTakeFocus.requestFocus(); 3114 } else { 3115 // nothing appropriate to have focus in touch mode, clear it out 3116 mView.unFocus(); 3117 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3118 mFocusedView = null; 3119 mOldFocusedView = null; 3120 return true; 3121 } 3122 } 3123 } 3124 } 3125 return false; 3126 } 3127 3128 /** 3129 * Find an ancestor of focused that wants focus after its descendants and is 3130 * focusable in touch mode. 3131 * @param focused The currently focused view. 3132 * @return An appropriate view, or null if no such view exists. 3133 */ 3134 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3135 ViewParent parent = focused.getParent(); 3136 while (parent instanceof ViewGroup) { 3137 final ViewGroup vgParent = (ViewGroup) parent; 3138 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3139 && vgParent.isFocusableInTouchMode()) { 3140 return vgParent; 3141 } 3142 if (vgParent.isRootNamespace()) { 3143 return null; 3144 } else { 3145 parent = vgParent.getParent(); 3146 } 3147 } 3148 return null; 3149 } 3150 3151 private boolean leaveTouchMode() { 3152 if (mView != null) { 3153 if (mView.hasFocus()) { 3154 // i learned the hard way to not trust mFocusedView :) 3155 mFocusedView = mView.findFocus(); 3156 if (!(mFocusedView instanceof ViewGroup)) { 3157 // some view has focus, let it keep it 3158 return false; 3159 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3160 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3161 // some view group has focus, and doesn't prefer its children 3162 // over itself for focus, so let them keep it. 3163 return false; 3164 } 3165 } 3166 3167 // find the best view to give focus to in this brave new non-touch-mode 3168 // world 3169 final View focused = focusSearch(null, View.FOCUS_DOWN); 3170 if (focused != null) { 3171 return focused.requestFocus(View.FOCUS_DOWN); 3172 } 3173 } 3174 return false; 3175 } 3176 3177 private void deliverInputEvent(QueuedInputEvent q) { 3178 if (ViewDebug.DEBUG_LATENCY) { 3179 q.mDeliverTimeNanos = System.nanoTime(); 3180 } 3181 3182 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3183 try { 3184 if (q.mEvent instanceof KeyEvent) { 3185 deliverKeyEvent(q); 3186 } else { 3187 final int source = q.mEvent.getSource(); 3188 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3189 deliverPointerEvent(q); 3190 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3191 deliverTrackballEvent(q); 3192 } else { 3193 deliverGenericMotionEvent(q); 3194 } 3195 } 3196 } finally { 3197 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3198 } 3199 } 3200 3201 private void deliverPointerEvent(QueuedInputEvent q) { 3202 final MotionEvent event = (MotionEvent)q.mEvent; 3203 final boolean isTouchEvent = event.isTouchEvent(); 3204 if (mInputEventConsistencyVerifier != null) { 3205 if (isTouchEvent) { 3206 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3207 } else { 3208 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3209 } 3210 } 3211 3212 // If there is no view, then the event will not be handled. 3213 if (mView == null || !mAdded) { 3214 finishInputEvent(q, false); 3215 return; 3216 } 3217 3218 // Translate the pointer event for compatibility, if needed. 3219 if (mTranslator != null) { 3220 mTranslator.translateEventInScreenToAppWindow(event); 3221 } 3222 3223 // Enter touch mode on down or scroll. 3224 final int action = event.getAction(); 3225 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3226 ensureTouchMode(true); 3227 } 3228 3229 // Offset the scroll position. 3230 if (mCurScrollY != 0) { 3231 event.offsetLocation(0, mCurScrollY); 3232 } 3233 if (MEASURE_LATENCY) { 3234 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3235 } 3236 3237 // Remember the touch position for possible drag-initiation. 3238 if (isTouchEvent) { 3239 mLastTouchPoint.x = event.getRawX(); 3240 mLastTouchPoint.y = event.getRawY(); 3241 } 3242 3243 // Dispatch touch to view hierarchy. 3244 boolean handled = mView.dispatchPointerEvent(event); 3245 if (MEASURE_LATENCY) { 3246 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3247 } 3248 if (handled) { 3249 finishInputEvent(q, true); 3250 return; 3251 } 3252 3253 // Pointer event was unhandled. 3254 finishInputEvent(q, false); 3255 } 3256 3257 private void deliverTrackballEvent(QueuedInputEvent q) { 3258 final MotionEvent event = (MotionEvent)q.mEvent; 3259 if (mInputEventConsistencyVerifier != null) { 3260 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3261 } 3262 3263 // If there is no view, then the event will not be handled. 3264 if (mView == null || !mAdded) { 3265 finishInputEvent(q, false); 3266 return; 3267 } 3268 3269 // Deliver the trackball event to the view. 3270 if (mView.dispatchTrackballEvent(event)) { 3271 // If we reach this, we delivered a trackball event to mView and 3272 // mView consumed it. Because we will not translate the trackball 3273 // event into a key event, touch mode will not exit, so we exit 3274 // touch mode here. 3275 ensureTouchMode(false); 3276 3277 finishInputEvent(q, true); 3278 mLastTrackballTime = Integer.MIN_VALUE; 3279 return; 3280 } 3281 3282 // Translate the trackball event into DPAD keys and try to deliver those. 3283 final TrackballAxis x = mTrackballAxisX; 3284 final TrackballAxis y = mTrackballAxisY; 3285 3286 long curTime = SystemClock.uptimeMillis(); 3287 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3288 // It has been too long since the last movement, 3289 // so restart at the beginning. 3290 x.reset(0); 3291 y.reset(0); 3292 mLastTrackballTime = curTime; 3293 } 3294 3295 final int action = event.getAction(); 3296 final int metaState = event.getMetaState(); 3297 switch (action) { 3298 case MotionEvent.ACTION_DOWN: 3299 x.reset(2); 3300 y.reset(2); 3301 enqueueInputEvent(new KeyEvent(curTime, curTime, 3302 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3303 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3304 InputDevice.SOURCE_KEYBOARD)); 3305 break; 3306 case MotionEvent.ACTION_UP: 3307 x.reset(2); 3308 y.reset(2); 3309 enqueueInputEvent(new KeyEvent(curTime, curTime, 3310 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3311 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3312 InputDevice.SOURCE_KEYBOARD)); 3313 break; 3314 } 3315 3316 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3317 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3318 + " move=" + event.getX() 3319 + " / Y=" + y.position + " step=" 3320 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3321 + " move=" + event.getY()); 3322 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3323 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3324 3325 // Generate DPAD events based on the trackball movement. 3326 // We pick the axis that has moved the most as the direction of 3327 // the DPAD. When we generate DPAD events for one axis, then the 3328 // other axis is reset -- we don't want to perform DPAD jumps due 3329 // to slight movements in the trackball when making major movements 3330 // along the other axis. 3331 int keycode = 0; 3332 int movement = 0; 3333 float accel = 1; 3334 if (xOff > yOff) { 3335 movement = x.generate((2/event.getXPrecision())); 3336 if (movement != 0) { 3337 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3338 : KeyEvent.KEYCODE_DPAD_LEFT; 3339 accel = x.acceleration; 3340 y.reset(2); 3341 } 3342 } else if (yOff > 0) { 3343 movement = y.generate((2/event.getYPrecision())); 3344 if (movement != 0) { 3345 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3346 : KeyEvent.KEYCODE_DPAD_UP; 3347 accel = y.acceleration; 3348 x.reset(2); 3349 } 3350 } 3351 3352 if (keycode != 0) { 3353 if (movement < 0) movement = -movement; 3354 int accelMovement = (int)(movement * accel); 3355 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3356 + " accelMovement=" + accelMovement 3357 + " accel=" + accel); 3358 if (accelMovement > movement) { 3359 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3360 + keycode); 3361 movement--; 3362 int repeatCount = accelMovement - movement; 3363 enqueueInputEvent(new KeyEvent(curTime, curTime, 3364 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3365 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3366 InputDevice.SOURCE_KEYBOARD)); 3367 } 3368 while (movement > 0) { 3369 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3370 + keycode); 3371 movement--; 3372 curTime = SystemClock.uptimeMillis(); 3373 enqueueInputEvent(new KeyEvent(curTime, curTime, 3374 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3375 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3376 InputDevice.SOURCE_KEYBOARD)); 3377 enqueueInputEvent(new KeyEvent(curTime, curTime, 3378 KeyEvent.ACTION_UP, keycode, 0, metaState, 3379 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3380 InputDevice.SOURCE_KEYBOARD)); 3381 } 3382 mLastTrackballTime = curTime; 3383 } 3384 3385 // Unfortunately we can't tell whether the application consumed the keys, so 3386 // we always consider the trackball event handled. 3387 finishInputEvent(q, true); 3388 } 3389 3390 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3391 final MotionEvent event = (MotionEvent)q.mEvent; 3392 if (mInputEventConsistencyVerifier != null) { 3393 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3394 } 3395 3396 final int source = event.getSource(); 3397 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3398 3399 // If there is no view, then the event will not be handled. 3400 if (mView == null || !mAdded) { 3401 if (isJoystick) { 3402 updateJoystickDirection(event, false); 3403 } 3404 finishInputEvent(q, false); 3405 return; 3406 } 3407 3408 // Deliver the event to the view. 3409 if (mView.dispatchGenericMotionEvent(event)) { 3410 if (isJoystick) { 3411 updateJoystickDirection(event, false); 3412 } 3413 finishInputEvent(q, true); 3414 return; 3415 } 3416 3417 if (isJoystick) { 3418 // Translate the joystick event into DPAD keys and try to deliver those. 3419 updateJoystickDirection(event, true); 3420 finishInputEvent(q, true); 3421 } else { 3422 finishInputEvent(q, false); 3423 } 3424 } 3425 3426 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3427 final long time = event.getEventTime(); 3428 final int metaState = event.getMetaState(); 3429 final int deviceId = event.getDeviceId(); 3430 final int source = event.getSource(); 3431 3432 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3433 if (xDirection == 0) { 3434 xDirection = joystickAxisValueToDirection(event.getX()); 3435 } 3436 3437 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3438 if (yDirection == 0) { 3439 yDirection = joystickAxisValueToDirection(event.getY()); 3440 } 3441 3442 if (xDirection != mLastJoystickXDirection) { 3443 if (mLastJoystickXKeyCode != 0) { 3444 enqueueInputEvent(new KeyEvent(time, time, 3445 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3446 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3447 mLastJoystickXKeyCode = 0; 3448 } 3449 3450 mLastJoystickXDirection = xDirection; 3451 3452 if (xDirection != 0 && synthesizeNewKeys) { 3453 mLastJoystickXKeyCode = xDirection > 0 3454 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3455 enqueueInputEvent(new KeyEvent(time, time, 3456 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3457 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3458 } 3459 } 3460 3461 if (yDirection != mLastJoystickYDirection) { 3462 if (mLastJoystickYKeyCode != 0) { 3463 enqueueInputEvent(new KeyEvent(time, time, 3464 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3465 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3466 mLastJoystickYKeyCode = 0; 3467 } 3468 3469 mLastJoystickYDirection = yDirection; 3470 3471 if (yDirection != 0 && synthesizeNewKeys) { 3472 mLastJoystickYKeyCode = yDirection > 0 3473 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3474 enqueueInputEvent(new KeyEvent(time, time, 3475 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3476 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3477 } 3478 } 3479 } 3480 3481 private static int joystickAxisValueToDirection(float value) { 3482 if (value >= 0.5f) { 3483 return 1; 3484 } else if (value <= -0.5f) { 3485 return -1; 3486 } else { 3487 return 0; 3488 } 3489 } 3490 3491 /** 3492 * Returns true if the key is used for keyboard navigation. 3493 * @param keyEvent The key event. 3494 * @return True if the key is used for keyboard navigation. 3495 */ 3496 private static boolean isNavigationKey(KeyEvent keyEvent) { 3497 switch (keyEvent.getKeyCode()) { 3498 case KeyEvent.KEYCODE_DPAD_LEFT: 3499 case KeyEvent.KEYCODE_DPAD_RIGHT: 3500 case KeyEvent.KEYCODE_DPAD_UP: 3501 case KeyEvent.KEYCODE_DPAD_DOWN: 3502 case KeyEvent.KEYCODE_DPAD_CENTER: 3503 case KeyEvent.KEYCODE_PAGE_UP: 3504 case KeyEvent.KEYCODE_PAGE_DOWN: 3505 case KeyEvent.KEYCODE_MOVE_HOME: 3506 case KeyEvent.KEYCODE_MOVE_END: 3507 case KeyEvent.KEYCODE_TAB: 3508 case KeyEvent.KEYCODE_SPACE: 3509 case KeyEvent.KEYCODE_ENTER: 3510 return true; 3511 } 3512 return false; 3513 } 3514 3515 /** 3516 * Returns true if the key is used for typing. 3517 * @param keyEvent The key event. 3518 * @return True if the key is used for typing. 3519 */ 3520 private static boolean isTypingKey(KeyEvent keyEvent) { 3521 return keyEvent.getUnicodeChar() > 0; 3522 } 3523 3524 /** 3525 * See if the key event means we should leave touch mode (and leave touch mode if so). 3526 * @param event The key event. 3527 * @return Whether this key event should be consumed (meaning the act of 3528 * leaving touch mode alone is considered the event). 3529 */ 3530 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3531 // Only relevant in touch mode. 3532 if (!mAttachInfo.mInTouchMode) { 3533 return false; 3534 } 3535 3536 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3537 final int action = event.getAction(); 3538 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3539 return false; 3540 } 3541 3542 // Don't leave touch mode if the IME told us not to. 3543 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3544 return false; 3545 } 3546 3547 // If the key can be used for keyboard navigation then leave touch mode 3548 // and select a focused view if needed (in ensureTouchMode). 3549 // When a new focused view is selected, we consume the navigation key because 3550 // navigation doesn't make much sense unless a view already has focus so 3551 // the key's purpose is to set focus. 3552 if (isNavigationKey(event)) { 3553 return ensureTouchMode(false); 3554 } 3555 3556 // If the key can be used for typing then leave touch mode 3557 // and select a focused view if needed (in ensureTouchMode). 3558 // Always allow the view to process the typing key. 3559 if (isTypingKey(event)) { 3560 ensureTouchMode(false); 3561 return false; 3562 } 3563 3564 return false; 3565 } 3566 3567 private void deliverKeyEvent(QueuedInputEvent q) { 3568 final KeyEvent event = (KeyEvent)q.mEvent; 3569 if (mInputEventConsistencyVerifier != null) { 3570 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3571 } 3572 3573 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3574 // If there is no view, then the event will not be handled. 3575 if (mView == null || !mAdded) { 3576 finishInputEvent(q, false); 3577 return; 3578 } 3579 3580 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3581 3582 // Perform predispatching before the IME. 3583 if (mView.dispatchKeyEventPreIme(event)) { 3584 finishInputEvent(q, true); 3585 return; 3586 } 3587 3588 // Dispatch to the IME before propagating down the view hierarchy. 3589 // The IME will eventually call back into handleImeFinishedEvent. 3590 if (mLastWasImTarget) { 3591 InputMethodManager imm = InputMethodManager.peekInstance(); 3592 if (imm != null) { 3593 final int seq = event.getSequenceNumber(); 3594 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3595 + seq + " event=" + event); 3596 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3597 return; 3598 } 3599 } 3600 } 3601 3602 // Not dispatching to IME, continue with post IME actions. 3603 deliverKeyEventPostIme(q); 3604 } 3605 3606 void handleImeFinishedEvent(int seq, boolean handled) { 3607 final QueuedInputEvent q = mCurrentInputEvent; 3608 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3609 final KeyEvent event = (KeyEvent)q.mEvent; 3610 if (DEBUG_IMF) { 3611 Log.v(TAG, "IME finished event: seq=" + seq 3612 + " handled=" + handled + " event=" + event); 3613 } 3614 if (handled) { 3615 finishInputEvent(q, true); 3616 } else { 3617 deliverKeyEventPostIme(q); 3618 } 3619 } else { 3620 if (DEBUG_IMF) { 3621 Log.v(TAG, "IME finished event: seq=" + seq 3622 + " handled=" + handled + ", event not found!"); 3623 } 3624 } 3625 } 3626 3627 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3628 final KeyEvent event = (KeyEvent)q.mEvent; 3629 if (ViewDebug.DEBUG_LATENCY) { 3630 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3631 } 3632 3633 // If the view went away, then the event will not be handled. 3634 if (mView == null || !mAdded) { 3635 finishInputEvent(q, false); 3636 return; 3637 } 3638 3639 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3640 if (checkForLeavingTouchModeAndConsume(event)) { 3641 finishInputEvent(q, true); 3642 return; 3643 } 3644 3645 // Make sure the fallback event policy sees all keys that will be delivered to the 3646 // view hierarchy. 3647 mFallbackEventHandler.preDispatchKeyEvent(event); 3648 3649 // Deliver the key to the view hierarchy. 3650 if (mView.dispatchKeyEvent(event)) { 3651 finishInputEvent(q, true); 3652 return; 3653 } 3654 3655 // If the Control modifier is held, try to interpret the key as a shortcut. 3656 if (event.getAction() == KeyEvent.ACTION_DOWN 3657 && event.isCtrlPressed() 3658 && event.getRepeatCount() == 0 3659 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3660 if (mView.dispatchKeyShortcutEvent(event)) { 3661 finishInputEvent(q, true); 3662 return; 3663 } 3664 } 3665 3666 // Apply the fallback event policy. 3667 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3668 finishInputEvent(q, true); 3669 return; 3670 } 3671 3672 // Handle automatic focus changes. 3673 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3674 int direction = 0; 3675 switch (event.getKeyCode()) { 3676 case KeyEvent.KEYCODE_DPAD_LEFT: 3677 if (event.hasNoModifiers()) { 3678 direction = View.FOCUS_LEFT; 3679 } 3680 break; 3681 case KeyEvent.KEYCODE_DPAD_RIGHT: 3682 if (event.hasNoModifiers()) { 3683 direction = View.FOCUS_RIGHT; 3684 } 3685 break; 3686 case KeyEvent.KEYCODE_DPAD_UP: 3687 if (event.hasNoModifiers()) { 3688 direction = View.FOCUS_UP; 3689 } 3690 break; 3691 case KeyEvent.KEYCODE_DPAD_DOWN: 3692 if (event.hasNoModifiers()) { 3693 direction = View.FOCUS_DOWN; 3694 } 3695 break; 3696 case KeyEvent.KEYCODE_TAB: 3697 if (event.hasNoModifiers()) { 3698 direction = View.FOCUS_FORWARD; 3699 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3700 direction = View.FOCUS_BACKWARD; 3701 } 3702 break; 3703 } 3704 if (direction != 0) { 3705 View focused = mView.findFocus(); 3706 if (focused != null) { 3707 View v = focused.focusSearch(direction); 3708 if (v != null && v != focused) { 3709 // do the math the get the interesting rect 3710 // of previous focused into the coord system of 3711 // newly focused view 3712 focused.getFocusedRect(mTempRect); 3713 if (mView instanceof ViewGroup) { 3714 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3715 focused, mTempRect); 3716 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3717 v, mTempRect); 3718 } 3719 if (v.requestFocus(direction, mTempRect)) { 3720 playSoundEffect(SoundEffectConstants 3721 .getContantForFocusDirection(direction)); 3722 finishInputEvent(q, true); 3723 return; 3724 } 3725 } 3726 3727 // Give the focused view a last chance to handle the dpad key. 3728 if (mView.dispatchUnhandledMove(focused, direction)) { 3729 finishInputEvent(q, true); 3730 return; 3731 } 3732 } 3733 } 3734 } 3735 3736 // Key was unhandled. 3737 finishInputEvent(q, false); 3738 } 3739 3740 /* drag/drop */ 3741 void setLocalDragState(Object obj) { 3742 mLocalDragState = obj; 3743 } 3744 3745 private void handleDragEvent(DragEvent event) { 3746 // From the root, only drag start/end/location are dispatched. entered/exited 3747 // are determined and dispatched by the viewgroup hierarchy, who then report 3748 // that back here for ultimate reporting back to the framework. 3749 if (mView != null && mAdded) { 3750 final int what = event.mAction; 3751 3752 if (what == DragEvent.ACTION_DRAG_EXITED) { 3753 // A direct EXITED event means that the window manager knows we've just crossed 3754 // a window boundary, so the current drag target within this one must have 3755 // just been exited. Send it the usual notifications and then we're done 3756 // for now. 3757 mView.dispatchDragEvent(event); 3758 } else { 3759 // Cache the drag description when the operation starts, then fill it in 3760 // on subsequent calls as a convenience 3761 if (what == DragEvent.ACTION_DRAG_STARTED) { 3762 mCurrentDragView = null; // Start the current-recipient tracking 3763 mDragDescription = event.mClipDescription; 3764 } else { 3765 event.mClipDescription = mDragDescription; 3766 } 3767 3768 // For events with a [screen] location, translate into window coordinates 3769 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3770 mDragPoint.set(event.mX, event.mY); 3771 if (mTranslator != null) { 3772 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3773 } 3774 3775 if (mCurScrollY != 0) { 3776 mDragPoint.offset(0, mCurScrollY); 3777 } 3778 3779 event.mX = mDragPoint.x; 3780 event.mY = mDragPoint.y; 3781 } 3782 3783 // Remember who the current drag target is pre-dispatch 3784 final View prevDragView = mCurrentDragView; 3785 3786 // Now dispatch the drag/drop event 3787 boolean result = mView.dispatchDragEvent(event); 3788 3789 // If we changed apparent drag target, tell the OS about it 3790 if (prevDragView != mCurrentDragView) { 3791 try { 3792 if (prevDragView != null) { 3793 sWindowSession.dragRecipientExited(mWindow); 3794 } 3795 if (mCurrentDragView != null) { 3796 sWindowSession.dragRecipientEntered(mWindow); 3797 } 3798 } catch (RemoteException e) { 3799 Slog.e(TAG, "Unable to note drag target change"); 3800 } 3801 } 3802 3803 // Report the drop result when we're done 3804 if (what == DragEvent.ACTION_DROP) { 3805 mDragDescription = null; 3806 try { 3807 Log.i(TAG, "Reporting drop result: " + result); 3808 sWindowSession.reportDropResult(mWindow, result); 3809 } catch (RemoteException e) { 3810 Log.e(TAG, "Unable to report drop result"); 3811 } 3812 } 3813 3814 // When the drag operation ends, release any local state object 3815 // that may have been in use 3816 if (what == DragEvent.ACTION_DRAG_ENDED) { 3817 setLocalDragState(null); 3818 } 3819 } 3820 } 3821 event.recycle(); 3822 } 3823 3824 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3825 if (mSeq != args.seq) { 3826 // The sequence has changed, so we need to update our value and make 3827 // sure to do a traversal afterward so the window manager is given our 3828 // most recent data. 3829 mSeq = args.seq; 3830 mAttachInfo.mForceReportNewAttributes = true; 3831 scheduleTraversals(); 3832 } 3833 if (mView == null) return; 3834 if (args.localChanges != 0) { 3835 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3836 } 3837 if (mAttachInfo != null) { 3838 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3839 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3840 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3841 mView.dispatchSystemUiVisibilityChanged(visibility); 3842 } 3843 } 3844 } 3845 3846 public void handleDispatchDoneAnimating() { 3847 if (mWindowsAnimating) { 3848 mWindowsAnimating = false; 3849 if (!mDirty.isEmpty() || mIsAnimating) { 3850 scheduleTraversals(); 3851 } 3852 } 3853 } 3854 3855 public void getLastTouchPoint(Point outLocation) { 3856 outLocation.x = (int) mLastTouchPoint.x; 3857 outLocation.y = (int) mLastTouchPoint.y; 3858 } 3859 3860 public void setDragFocus(View newDragTarget) { 3861 if (mCurrentDragView != newDragTarget) { 3862 mCurrentDragView = newDragTarget; 3863 } 3864 } 3865 3866 private AudioManager getAudioManager() { 3867 if (mView == null) { 3868 throw new IllegalStateException("getAudioManager called when there is no mView"); 3869 } 3870 if (mAudioManager == null) { 3871 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3872 } 3873 return mAudioManager; 3874 } 3875 3876 public AccessibilityInteractionController getAccessibilityInteractionController() { 3877 if (mView == null) { 3878 throw new IllegalStateException("getAccessibilityInteractionController" 3879 + " called when there is no mView"); 3880 } 3881 if (mAccessibilityInteractionController == null) { 3882 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3883 } 3884 return mAccessibilityInteractionController; 3885 } 3886 3887 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3888 boolean insetsPending) throws RemoteException { 3889 3890 float appScale = mAttachInfo.mApplicationScale; 3891 boolean restore = false; 3892 if (params != null && mTranslator != null) { 3893 restore = true; 3894 params.backup(); 3895 mTranslator.translateWindowLayout(params); 3896 } 3897 if (params != null) { 3898 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3899 } 3900 mPendingConfiguration.seq = 0; 3901 //Log.d(TAG, ">>>>>> CALLING relayout"); 3902 if (params != null && mOrigWindowType != params.type) { 3903 // For compatibility with old apps, don't crash here. 3904 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3905 Slog.w(TAG, "Window type can not be changed after " 3906 + "the window is added; ignoring change of " + mView); 3907 params.type = mOrigWindowType; 3908 } 3909 } 3910 int relayoutResult = sWindowSession.relayout( 3911 mWindow, mSeq, params, 3912 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3913 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3914 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3915 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3916 mPendingConfiguration, mSurface); 3917 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3918 if (restore) { 3919 params.restore(); 3920 } 3921 3922 if (mTranslator != null) { 3923 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3924 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3925 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3926 } 3927 return relayoutResult; 3928 } 3929 3930 /** 3931 * {@inheritDoc} 3932 */ 3933 public void playSoundEffect(int effectId) { 3934 checkThread(); 3935 3936 try { 3937 final AudioManager audioManager = getAudioManager(); 3938 3939 switch (effectId) { 3940 case SoundEffectConstants.CLICK: 3941 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3942 return; 3943 case SoundEffectConstants.NAVIGATION_DOWN: 3944 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3945 return; 3946 case SoundEffectConstants.NAVIGATION_LEFT: 3947 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3948 return; 3949 case SoundEffectConstants.NAVIGATION_RIGHT: 3950 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3951 return; 3952 case SoundEffectConstants.NAVIGATION_UP: 3953 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3954 return; 3955 default: 3956 throw new IllegalArgumentException("unknown effect id " + effectId + 3957 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3958 } 3959 } catch (IllegalStateException e) { 3960 // Exception thrown by getAudioManager() when mView is null 3961 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3962 e.printStackTrace(); 3963 } 3964 } 3965 3966 /** 3967 * {@inheritDoc} 3968 */ 3969 public boolean performHapticFeedback(int effectId, boolean always) { 3970 try { 3971 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3972 } catch (RemoteException e) { 3973 return false; 3974 } 3975 } 3976 3977 /** 3978 * {@inheritDoc} 3979 */ 3980 public View focusSearch(View focused, int direction) { 3981 checkThread(); 3982 if (!(mView instanceof ViewGroup)) { 3983 return null; 3984 } 3985 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3986 } 3987 3988 public void debug() { 3989 mView.debug(); 3990 } 3991 3992 public void dumpGfxInfo(int[] info) { 3993 if (mView != null) { 3994 getGfxInfo(mView, info); 3995 } else { 3996 info[0] = info[1] = 0; 3997 } 3998 } 3999 4000 private static void getGfxInfo(View view, int[] info) { 4001 DisplayList displayList = view.mDisplayList; 4002 info[0]++; 4003 if (displayList != null) { 4004 info[1] += displayList.getSize(); 4005 } 4006 4007 if (view instanceof ViewGroup) { 4008 ViewGroup group = (ViewGroup) view; 4009 4010 int count = group.getChildCount(); 4011 for (int i = 0; i < count; i++) { 4012 getGfxInfo(group.getChildAt(i), info); 4013 } 4014 } 4015 } 4016 4017 public void die(boolean immediate) { 4018 if (immediate) { 4019 doDie(); 4020 } else { 4021 if (!mIsDrawing) { 4022 destroyHardwareRenderer(); 4023 } else { 4024 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4025 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4026 } 4027 mHandler.sendEmptyMessage(MSG_DIE); 4028 } 4029 } 4030 4031 void doDie() { 4032 checkThread(); 4033 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4034 synchronized (this) { 4035 if (mAdded) { 4036 dispatchDetachedFromWindow(); 4037 } 4038 4039 if (mAdded && !mFirst) { 4040 destroyHardwareRenderer(); 4041 4042 if (mView != null) { 4043 int viewVisibility = mView.getVisibility(); 4044 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4045 if (mWindowAttributesChanged || viewVisibilityChanged) { 4046 // If layout params have been changed, first give them 4047 // to the window manager to make sure it has the correct 4048 // animation info. 4049 try { 4050 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4051 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 4052 sWindowSession.finishDrawing(mWindow); 4053 } 4054 } catch (RemoteException e) { 4055 } 4056 } 4057 4058 mSurface.release(); 4059 } 4060 } 4061 4062 mAdded = false; 4063 } 4064 } 4065 4066 public void requestUpdateConfiguration(Configuration config) { 4067 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4068 mHandler.sendMessage(msg); 4069 } 4070 4071 public void loadSystemProperties() { 4072 boolean layout = SystemProperties.getBoolean( 4073 View.DEBUG_LAYOUT_PROPERTY, false); 4074 if (layout != mAttachInfo.mDebugLayout) { 4075 mAttachInfo.mDebugLayout = layout; 4076 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4077 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4078 } 4079 } 4080 } 4081 4082 private void destroyHardwareRenderer() { 4083 AttachInfo attachInfo = mAttachInfo; 4084 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4085 4086 if (hardwareRenderer != null) { 4087 if (mView != null) { 4088 hardwareRenderer.destroyHardwareResources(mView); 4089 } 4090 hardwareRenderer.destroy(true); 4091 hardwareRenderer.setRequested(false); 4092 4093 attachInfo.mHardwareRenderer = null; 4094 attachInfo.mHardwareAccelerated = false; 4095 } 4096 } 4097 4098 void dispatchImeFinishedEvent(int seq, boolean handled) { 4099 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4100 msg.arg1 = seq; 4101 msg.arg2 = handled ? 1 : 0; 4102 msg.setAsynchronous(true); 4103 mHandler.sendMessage(msg); 4104 } 4105 4106 public void dispatchFinishInputConnection(InputConnection connection) { 4107 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4108 mHandler.sendMessage(msg); 4109 } 4110 4111 public void dispatchResized(int w, int h, Rect contentInsets, 4112 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4113 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4114 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4115 + " visibleInsets=" + visibleInsets.toShortString() 4116 + " reportDraw=" + reportDraw); 4117 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4118 if (mTranslator != null) { 4119 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4120 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4121 w *= mTranslator.applicationInvertedScale; 4122 h *= mTranslator.applicationInvertedScale; 4123 } 4124 msg.arg1 = w; 4125 msg.arg2 = h; 4126 ResizedInfo ri = new ResizedInfo(); 4127 ri.contentInsets = new Rect(contentInsets); 4128 ri.visibleInsets = new Rect(visibleInsets); 4129 ri.newConfig = newConfig; 4130 msg.obj = ri; 4131 mHandler.sendMessage(msg); 4132 } 4133 4134 /** 4135 * Represents a pending input event that is waiting in a queue. 4136 * 4137 * Input events are processed in serial order by the timestamp specified by 4138 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4139 * one input event to the application at a time and waits for the application 4140 * to finish handling it before delivering the next one. 4141 * 4142 * However, because the application or IME can synthesize and inject multiple 4143 * key events at a time without going through the input dispatcher, we end up 4144 * needing a queue on the application's side. 4145 */ 4146 private static final class QueuedInputEvent { 4147 public static final int FLAG_DELIVER_POST_IME = 1; 4148 4149 public QueuedInputEvent mNext; 4150 4151 public InputEvent mEvent; 4152 public InputEventReceiver mReceiver; 4153 public int mFlags; 4154 4155 // Used for latency calculations. 4156 public long mReceiveTimeNanos; 4157 public long mDeliverTimeNanos; 4158 public long mDeliverPostImeTimeNanos; 4159 } 4160 4161 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4162 InputEventReceiver receiver, int flags) { 4163 QueuedInputEvent q = mQueuedInputEventPool; 4164 if (q != null) { 4165 mQueuedInputEventPoolSize -= 1; 4166 mQueuedInputEventPool = q.mNext; 4167 q.mNext = null; 4168 } else { 4169 q = new QueuedInputEvent(); 4170 } 4171 4172 q.mEvent = event; 4173 q.mReceiver = receiver; 4174 q.mFlags = flags; 4175 return q; 4176 } 4177 4178 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4179 q.mEvent = null; 4180 q.mReceiver = null; 4181 4182 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4183 mQueuedInputEventPoolSize += 1; 4184 q.mNext = mQueuedInputEventPool; 4185 mQueuedInputEventPool = q; 4186 } 4187 } 4188 4189 void enqueueInputEvent(InputEvent event) { 4190 enqueueInputEvent(event, null, 0, false); 4191 } 4192 4193 void enqueueInputEvent(InputEvent event, 4194 InputEventReceiver receiver, int flags, boolean processImmediately) { 4195 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4196 4197 if (ViewDebug.DEBUG_LATENCY) { 4198 q.mReceiveTimeNanos = System.nanoTime(); 4199 q.mDeliverTimeNanos = 0; 4200 q.mDeliverPostImeTimeNanos = 0; 4201 } 4202 4203 // Always enqueue the input event in order, regardless of its time stamp. 4204 // We do this because the application or the IME may inject key events 4205 // in response to touch events and we want to ensure that the injected keys 4206 // are processed in the order they were received and we cannot trust that 4207 // the time stamp of injected events are monotonic. 4208 QueuedInputEvent last = mFirstPendingInputEvent; 4209 if (last == null) { 4210 mFirstPendingInputEvent = q; 4211 } else { 4212 while (last.mNext != null) { 4213 last = last.mNext; 4214 } 4215 last.mNext = q; 4216 } 4217 4218 if (processImmediately) { 4219 doProcessInputEvents(); 4220 } else { 4221 scheduleProcessInputEvents(); 4222 } 4223 } 4224 4225 private void scheduleProcessInputEvents() { 4226 if (!mProcessInputEventsScheduled) { 4227 mProcessInputEventsScheduled = true; 4228 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4229 msg.setAsynchronous(true); 4230 mHandler.sendMessage(msg); 4231 } 4232 } 4233 4234 void doProcessInputEvents() { 4235 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4236 QueuedInputEvent q = mFirstPendingInputEvent; 4237 mFirstPendingInputEvent = q.mNext; 4238 q.mNext = null; 4239 mCurrentInputEvent = q; 4240 deliverInputEvent(q); 4241 } 4242 4243 // We are done processing all input events that we can process right now 4244 // so we can clear the pending flag immediately. 4245 if (mProcessInputEventsScheduled) { 4246 mProcessInputEventsScheduled = false; 4247 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4248 } 4249 } 4250 4251 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4252 if (q != mCurrentInputEvent) { 4253 throw new IllegalStateException("finished input event out of order"); 4254 } 4255 4256 if (ViewDebug.DEBUG_LATENCY) { 4257 final long now = System.nanoTime(); 4258 final long eventTime = q.mEvent.getEventTimeNano(); 4259 final StringBuilder msg = new StringBuilder(); 4260 msg.append("Spent "); 4261 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 4262 msg.append("ms processing "); 4263 if (q.mEvent instanceof KeyEvent) { 4264 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 4265 msg.append("key event, action="); 4266 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 4267 } else { 4268 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 4269 msg.append("motion event, action="); 4270 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 4271 msg.append(", historySize="); 4272 msg.append(motionEvent.getHistorySize()); 4273 } 4274 msg.append(", handled="); 4275 msg.append(handled); 4276 msg.append(", received at +"); 4277 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 4278 if (q.mDeliverTimeNanos != 0) { 4279 msg.append("ms, delivered at +"); 4280 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 4281 } 4282 if (q.mDeliverPostImeTimeNanos != 0) { 4283 msg.append("ms, delivered post IME at +"); 4284 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 4285 } 4286 msg.append("ms, finished at +"); 4287 msg.append((now - eventTime) * 0.000001f); 4288 msg.append("ms."); 4289 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 4290 } 4291 4292 if (q.mReceiver != null) { 4293 q.mReceiver.finishInputEvent(q.mEvent, handled); 4294 } else { 4295 q.mEvent.recycleIfNeededAfterDispatch(); 4296 } 4297 4298 recycleQueuedInputEvent(q); 4299 4300 mCurrentInputEvent = null; 4301 if (mFirstPendingInputEvent != null) { 4302 scheduleProcessInputEvents(); 4303 } 4304 } 4305 4306 void scheduleConsumeBatchedInput() { 4307 if (!mConsumeBatchedInputScheduled) { 4308 mConsumeBatchedInputScheduled = true; 4309 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4310 mConsumedBatchedInputRunnable, null); 4311 } 4312 } 4313 4314 void unscheduleConsumeBatchedInput() { 4315 if (mConsumeBatchedInputScheduled) { 4316 mConsumeBatchedInputScheduled = false; 4317 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4318 mConsumedBatchedInputRunnable, null); 4319 } 4320 } 4321 4322 void doConsumeBatchedInput(long frameTimeNanos) { 4323 if (mConsumeBatchedInputScheduled) { 4324 mConsumeBatchedInputScheduled = false; 4325 if (mInputEventReceiver != null) { 4326 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4327 } 4328 doProcessInputEvents(); 4329 } 4330 } 4331 4332 final class TraversalRunnable implements Runnable { 4333 @Override 4334 public void run() { 4335 doTraversal(); 4336 } 4337 } 4338 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4339 4340 final class WindowInputEventReceiver extends InputEventReceiver { 4341 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4342 super(inputChannel, looper); 4343 } 4344 4345 @Override 4346 public void onInputEvent(InputEvent event) { 4347 enqueueInputEvent(event, this, 0, true); 4348 } 4349 4350 @Override 4351 public void onBatchedInputEventPending() { 4352 scheduleConsumeBatchedInput(); 4353 } 4354 4355 @Override 4356 public void dispose() { 4357 unscheduleConsumeBatchedInput(); 4358 super.dispose(); 4359 } 4360 } 4361 WindowInputEventReceiver mInputEventReceiver; 4362 4363 final class ConsumeBatchedInputRunnable implements Runnable { 4364 @Override 4365 public void run() { 4366 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4367 } 4368 } 4369 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4370 new ConsumeBatchedInputRunnable(); 4371 boolean mConsumeBatchedInputScheduled; 4372 4373 final class InvalidateOnAnimationRunnable implements Runnable { 4374 private boolean mPosted; 4375 private ArrayList<View> mViews = new ArrayList<View>(); 4376 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4377 new ArrayList<AttachInfo.InvalidateInfo>(); 4378 private View[] mTempViews; 4379 private AttachInfo.InvalidateInfo[] mTempViewRects; 4380 4381 public void addView(View view) { 4382 synchronized (this) { 4383 mViews.add(view); 4384 postIfNeededLocked(); 4385 } 4386 } 4387 4388 public void addViewRect(AttachInfo.InvalidateInfo info) { 4389 synchronized (this) { 4390 mViewRects.add(info); 4391 postIfNeededLocked(); 4392 } 4393 } 4394 4395 public void removeView(View view) { 4396 synchronized (this) { 4397 mViews.remove(view); 4398 4399 for (int i = mViewRects.size(); i-- > 0; ) { 4400 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4401 if (info.target == view) { 4402 mViewRects.remove(i); 4403 info.release(); 4404 } 4405 } 4406 4407 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4408 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4409 mPosted = false; 4410 } 4411 } 4412 } 4413 4414 @Override 4415 public void run() { 4416 final int viewCount; 4417 final int viewRectCount; 4418 synchronized (this) { 4419 mPosted = false; 4420 4421 viewCount = mViews.size(); 4422 if (viewCount != 0) { 4423 mTempViews = mViews.toArray(mTempViews != null 4424 ? mTempViews : new View[viewCount]); 4425 mViews.clear(); 4426 } 4427 4428 viewRectCount = mViewRects.size(); 4429 if (viewRectCount != 0) { 4430 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4431 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4432 mViewRects.clear(); 4433 } 4434 } 4435 4436 for (int i = 0; i < viewCount; i++) { 4437 mTempViews[i].invalidate(); 4438 } 4439 4440 for (int i = 0; i < viewRectCount; i++) { 4441 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4442 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4443 info.release(); 4444 } 4445 } 4446 4447 private void postIfNeededLocked() { 4448 if (!mPosted) { 4449 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4450 mPosted = true; 4451 } 4452 } 4453 } 4454 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4455 new InvalidateOnAnimationRunnable(); 4456 4457 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4458 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4459 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4460 } 4461 4462 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4463 long delayMilliseconds) { 4464 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4465 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4466 } 4467 4468 public void dispatchInvalidateOnAnimation(View view) { 4469 mInvalidateOnAnimationRunnable.addView(view); 4470 } 4471 4472 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4473 mInvalidateOnAnimationRunnable.addViewRect(info); 4474 } 4475 4476 public void enqueueDisplayList(DisplayList displayList) { 4477 mDisplayLists.add(displayList); 4478 4479 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4480 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4481 mHandler.sendMessage(msg); 4482 } 4483 4484 public void dequeueDisplayList(DisplayList displayList) { 4485 if (mDisplayLists.remove(displayList)) { 4486 displayList.invalidate(); 4487 if (mDisplayLists.size() == 0) { 4488 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4489 } 4490 } 4491 } 4492 4493 public void cancelInvalidate(View view) { 4494 mHandler.removeMessages(MSG_INVALIDATE, view); 4495 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4496 // them to the pool 4497 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4498 mInvalidateOnAnimationRunnable.removeView(view); 4499 } 4500 4501 public void dispatchKey(KeyEvent event) { 4502 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4503 msg.setAsynchronous(true); 4504 mHandler.sendMessage(msg); 4505 } 4506 4507 public void dispatchKeyFromIme(KeyEvent event) { 4508 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4509 msg.setAsynchronous(true); 4510 mHandler.sendMessage(msg); 4511 } 4512 4513 public void dispatchUnhandledKey(KeyEvent event) { 4514 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4515 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4516 final int keyCode = event.getKeyCode(); 4517 final int metaState = event.getMetaState(); 4518 4519 // Check for fallback actions specified by the key character map. 4520 KeyCharacterMap.FallbackAction fallbackAction = 4521 kcm.getFallbackAction(keyCode, metaState); 4522 if (fallbackAction != null) { 4523 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4524 KeyEvent fallbackEvent = KeyEvent.obtain( 4525 event.getDownTime(), event.getEventTime(), 4526 event.getAction(), fallbackAction.keyCode, 4527 event.getRepeatCount(), fallbackAction.metaState, 4528 event.getDeviceId(), event.getScanCode(), 4529 flags, event.getSource(), null); 4530 fallbackAction.recycle(); 4531 4532 dispatchKey(fallbackEvent); 4533 } 4534 } 4535 } 4536 4537 public void dispatchAppVisibility(boolean visible) { 4538 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4539 msg.arg1 = visible ? 1 : 0; 4540 mHandler.sendMessage(msg); 4541 } 4542 4543 public void dispatchScreenStateChange(boolean on) { 4544 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4545 msg.arg1 = on ? 1 : 0; 4546 mHandler.sendMessage(msg); 4547 } 4548 4549 public void dispatchGetNewSurface() { 4550 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4551 mHandler.sendMessage(msg); 4552 } 4553 4554 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4555 Message msg = Message.obtain(); 4556 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4557 msg.arg1 = hasFocus ? 1 : 0; 4558 msg.arg2 = inTouchMode ? 1 : 0; 4559 mHandler.sendMessage(msg); 4560 } 4561 4562 public void dispatchCloseSystemDialogs(String reason) { 4563 Message msg = Message.obtain(); 4564 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4565 msg.obj = reason; 4566 mHandler.sendMessage(msg); 4567 } 4568 4569 public void dispatchDragEvent(DragEvent event) { 4570 final int what; 4571 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4572 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4573 mHandler.removeMessages(what); 4574 } else { 4575 what = MSG_DISPATCH_DRAG_EVENT; 4576 } 4577 Message msg = mHandler.obtainMessage(what, event); 4578 mHandler.sendMessage(msg); 4579 } 4580 4581 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4582 int localValue, int localChanges) { 4583 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4584 args.seq = seq; 4585 args.globalVisibility = globalVisibility; 4586 args.localValue = localValue; 4587 args.localChanges = localChanges; 4588 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4589 } 4590 4591 public void dispatchDoneAnimating() { 4592 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4593 } 4594 4595 public void dispatchCheckFocus() { 4596 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4597 // This will result in a call to checkFocus() below. 4598 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4599 } 4600 } 4601 4602 /** 4603 * Post a callback to send a 4604 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4605 * This event is send at most once every 4606 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4607 */ 4608 private void postSendWindowContentChangedCallback(View source) { 4609 if (mSendWindowContentChangedAccessibilityEvent == null) { 4610 mSendWindowContentChangedAccessibilityEvent = 4611 new SendWindowContentChangedAccessibilityEvent(); 4612 } 4613 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4614 if (oldSource == null) { 4615 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4616 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4617 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4618 } else { 4619 mSendWindowContentChangedAccessibilityEvent.mSource = 4620 getCommonPredecessor(oldSource, source); 4621 } 4622 } 4623 4624 /** 4625 * Remove a posted callback to send a 4626 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4627 */ 4628 private void removeSendWindowContentChangedCallback() { 4629 if (mSendWindowContentChangedAccessibilityEvent != null) { 4630 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4631 } 4632 } 4633 4634 public boolean showContextMenuForChild(View originalView) { 4635 return false; 4636 } 4637 4638 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4639 return null; 4640 } 4641 4642 public void createContextMenu(ContextMenu menu) { 4643 } 4644 4645 public void childDrawableStateChanged(View child) { 4646 } 4647 4648 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4649 if (mView == null) { 4650 return false; 4651 } 4652 // Watch for accessibility focus change events from virtual nodes 4653 // to keep track of accessibility focus being on a virtual node. 4654 final int eventType = event.getEventType(); 4655 switch (eventType) { 4656 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4657 final long sourceId = event.getSourceNodeId(); 4658 // If the event is not from a virtual node we are not interested. 4659 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4660 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4661 break; 4662 } 4663 final int realViewId = AccessibilityNodeInfo.getAccessibilityViewId(sourceId); 4664 View focusHost = mView.findViewByAccessibilityId(realViewId); 4665 setAccessibilityFocusedHost(focusHost); 4666 } break; 4667 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4668 final long sourceId = event.getSourceNodeId(); 4669 // If the event is not from a virtual node we are not interested. 4670 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4671 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4672 break; 4673 } 4674 setAccessibilityFocusedHost(null); 4675 } break; 4676 } 4677 mAccessibilityManager.sendAccessibilityEvent(event); 4678 return true; 4679 } 4680 4681 @Override 4682 public void childAccessibilityStateChanged(View child) { 4683 postSendWindowContentChangedCallback(child); 4684 } 4685 4686 private View getCommonPredecessor(View first, View second) { 4687 if (mAttachInfo != null) { 4688 if (mTempHashSet == null) { 4689 mTempHashSet = new HashSet<View>(); 4690 } 4691 HashSet<View> seen = mTempHashSet; 4692 seen.clear(); 4693 View firstCurrent = first; 4694 while (firstCurrent != null) { 4695 seen.add(firstCurrent); 4696 ViewParent firstCurrentParent = firstCurrent.mParent; 4697 if (firstCurrentParent instanceof View) { 4698 firstCurrent = (View) firstCurrentParent; 4699 } else { 4700 firstCurrent = null; 4701 } 4702 } 4703 View secondCurrent = second; 4704 while (secondCurrent != null) { 4705 if (seen.contains(secondCurrent)) { 4706 seen.clear(); 4707 return secondCurrent; 4708 } 4709 ViewParent secondCurrentParent = secondCurrent.mParent; 4710 if (secondCurrentParent instanceof View) { 4711 secondCurrent = (View) secondCurrentParent; 4712 } else { 4713 secondCurrent = null; 4714 } 4715 } 4716 seen.clear(); 4717 } 4718 return null; 4719 } 4720 4721 void checkThread() { 4722 if (mThread != Thread.currentThread()) { 4723 throw new CalledFromWrongThreadException( 4724 "Only the original thread that created a view hierarchy can touch its views."); 4725 } 4726 } 4727 4728 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4729 // ViewAncestor never intercepts touch event, so this can be a no-op 4730 } 4731 4732 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4733 boolean immediate) { 4734 return scrollToRectOrFocus(rectangle, immediate); 4735 } 4736 4737 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4738 // Do nothing. 4739 } 4740 4741 class TakenSurfaceHolder extends BaseSurfaceHolder { 4742 @Override 4743 public boolean onAllowLockCanvas() { 4744 return mDrawingAllowed; 4745 } 4746 4747 @Override 4748 public void onRelayoutContainer() { 4749 // Not currently interesting -- from changing between fixed and layout size. 4750 } 4751 4752 public void setFormat(int format) { 4753 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4754 } 4755 4756 public void setType(int type) { 4757 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4758 } 4759 4760 @Override 4761 public void onUpdateSurface() { 4762 // We take care of format and type changes on our own. 4763 throw new IllegalStateException("Shouldn't be here"); 4764 } 4765 4766 public boolean isCreating() { 4767 return mIsCreating; 4768 } 4769 4770 @Override 4771 public void setFixedSize(int width, int height) { 4772 throw new UnsupportedOperationException( 4773 "Currently only support sizing from layout"); 4774 } 4775 4776 public void setKeepScreenOn(boolean screenOn) { 4777 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4778 } 4779 } 4780 4781 static class InputMethodCallback extends IInputMethodCallback.Stub { 4782 private WeakReference<ViewRootImpl> mViewAncestor; 4783 4784 public InputMethodCallback(ViewRootImpl viewAncestor) { 4785 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4786 } 4787 4788 public void finishedEvent(int seq, boolean handled) { 4789 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4790 if (viewAncestor != null) { 4791 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4792 } 4793 } 4794 4795 public void sessionCreated(IInputMethodSession session) { 4796 // Stub -- not for use in the client. 4797 } 4798 } 4799 4800 static class W extends IWindow.Stub { 4801 private final WeakReference<ViewRootImpl> mViewAncestor; 4802 4803 W(ViewRootImpl viewAncestor) { 4804 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4805 } 4806 4807 public void resized(int w, int h, Rect contentInsets, 4808 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4809 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4810 if (viewAncestor != null) { 4811 viewAncestor.dispatchResized(w, h, contentInsets, 4812 visibleInsets, reportDraw, newConfig); 4813 } 4814 } 4815 4816 public void dispatchAppVisibility(boolean visible) { 4817 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4818 if (viewAncestor != null) { 4819 viewAncestor.dispatchAppVisibility(visible); 4820 } 4821 } 4822 4823 public void dispatchScreenState(boolean on) { 4824 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4825 if (viewAncestor != null) { 4826 viewAncestor.dispatchScreenStateChange(on); 4827 } 4828 } 4829 4830 public void dispatchGetNewSurface() { 4831 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4832 if (viewAncestor != null) { 4833 viewAncestor.dispatchGetNewSurface(); 4834 } 4835 } 4836 4837 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4838 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4839 if (viewAncestor != null) { 4840 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4841 } 4842 } 4843 4844 private static int checkCallingPermission(String permission) { 4845 try { 4846 return ActivityManagerNative.getDefault().checkPermission( 4847 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4848 } catch (RemoteException e) { 4849 return PackageManager.PERMISSION_DENIED; 4850 } 4851 } 4852 4853 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4854 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4855 if (viewAncestor != null) { 4856 final View view = viewAncestor.mView; 4857 if (view != null) { 4858 if (checkCallingPermission(Manifest.permission.DUMP) != 4859 PackageManager.PERMISSION_GRANTED) { 4860 throw new SecurityException("Insufficient permissions to invoke" 4861 + " executeCommand() from pid=" + Binder.getCallingPid() 4862 + ", uid=" + Binder.getCallingUid()); 4863 } 4864 4865 OutputStream clientStream = null; 4866 try { 4867 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4868 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4869 } catch (IOException e) { 4870 e.printStackTrace(); 4871 } finally { 4872 if (clientStream != null) { 4873 try { 4874 clientStream.close(); 4875 } catch (IOException e) { 4876 e.printStackTrace(); 4877 } 4878 } 4879 } 4880 } 4881 } 4882 } 4883 4884 public void closeSystemDialogs(String reason) { 4885 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4886 if (viewAncestor != null) { 4887 viewAncestor.dispatchCloseSystemDialogs(reason); 4888 } 4889 } 4890 4891 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4892 boolean sync) { 4893 if (sync) { 4894 try { 4895 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4896 } catch (RemoteException e) { 4897 } 4898 } 4899 } 4900 4901 public void dispatchWallpaperCommand(String action, int x, int y, 4902 int z, Bundle extras, boolean sync) { 4903 if (sync) { 4904 try { 4905 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4906 } catch (RemoteException e) { 4907 } 4908 } 4909 } 4910 4911 /* Drag/drop */ 4912 public void dispatchDragEvent(DragEvent event) { 4913 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4914 if (viewAncestor != null) { 4915 viewAncestor.dispatchDragEvent(event); 4916 } 4917 } 4918 4919 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4920 int localValue, int localChanges) { 4921 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4922 if (viewAncestor != null) { 4923 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4924 localValue, localChanges); 4925 } 4926 } 4927 4928 public void doneAnimating() { 4929 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4930 if (viewAncestor != null) { 4931 viewAncestor.dispatchDoneAnimating(); 4932 } 4933 } 4934 } 4935 4936 /** 4937 * Maintains state information for a single trackball axis, generating 4938 * discrete (DPAD) movements based on raw trackball motion. 4939 */ 4940 static final class TrackballAxis { 4941 /** 4942 * The maximum amount of acceleration we will apply. 4943 */ 4944 static final float MAX_ACCELERATION = 20; 4945 4946 /** 4947 * The maximum amount of time (in milliseconds) between events in order 4948 * for us to consider the user to be doing fast trackball movements, 4949 * and thus apply an acceleration. 4950 */ 4951 static final long FAST_MOVE_TIME = 150; 4952 4953 /** 4954 * Scaling factor to the time (in milliseconds) between events to how 4955 * much to multiple/divide the current acceleration. When movement 4956 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4957 * FAST_MOVE_TIME it divides it. 4958 */ 4959 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4960 4961 float position; 4962 float absPosition; 4963 float acceleration = 1; 4964 long lastMoveTime = 0; 4965 int step; 4966 int dir; 4967 int nonAccelMovement; 4968 4969 void reset(int _step) { 4970 position = 0; 4971 acceleration = 1; 4972 lastMoveTime = 0; 4973 step = _step; 4974 dir = 0; 4975 } 4976 4977 /** 4978 * Add trackball movement into the state. If the direction of movement 4979 * has been reversed, the state is reset before adding the 4980 * movement (so that you don't have to compensate for any previously 4981 * collected movement before see the result of the movement in the 4982 * new direction). 4983 * 4984 * @return Returns the absolute value of the amount of movement 4985 * collected so far. 4986 */ 4987 float collect(float off, long time, String axis) { 4988 long normTime; 4989 if (off > 0) { 4990 normTime = (long)(off * FAST_MOVE_TIME); 4991 if (dir < 0) { 4992 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4993 position = 0; 4994 step = 0; 4995 acceleration = 1; 4996 lastMoveTime = 0; 4997 } 4998 dir = 1; 4999 } else if (off < 0) { 5000 normTime = (long)((-off) * FAST_MOVE_TIME); 5001 if (dir > 0) { 5002 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5003 position = 0; 5004 step = 0; 5005 acceleration = 1; 5006 lastMoveTime = 0; 5007 } 5008 dir = -1; 5009 } else { 5010 normTime = 0; 5011 } 5012 5013 // The number of milliseconds between each movement that is 5014 // considered "normal" and will not result in any acceleration 5015 // or deceleration, scaled by the offset we have here. 5016 if (normTime > 0) { 5017 long delta = time - lastMoveTime; 5018 lastMoveTime = time; 5019 float acc = acceleration; 5020 if (delta < normTime) { 5021 // The user is scrolling rapidly, so increase acceleration. 5022 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5023 if (scale > 1) acc *= scale; 5024 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5025 + off + " normTime=" + normTime + " delta=" + delta 5026 + " scale=" + scale + " acc=" + acc); 5027 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5028 } else { 5029 // The user is scrolling slowly, so decrease acceleration. 5030 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5031 if (scale > 1) acc /= scale; 5032 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5033 + off + " normTime=" + normTime + " delta=" + delta 5034 + " scale=" + scale + " acc=" + acc); 5035 acceleration = acc > 1 ? acc : 1; 5036 } 5037 } 5038 position += off; 5039 return (absPosition = Math.abs(position)); 5040 } 5041 5042 /** 5043 * Generate the number of discrete movement events appropriate for 5044 * the currently collected trackball movement. 5045 * 5046 * @param precision The minimum movement required to generate the 5047 * first discrete movement. 5048 * 5049 * @return Returns the number of discrete movements, either positive 5050 * or negative, or 0 if there is not enough trackball movement yet 5051 * for a discrete movement. 5052 */ 5053 int generate(float precision) { 5054 int movement = 0; 5055 nonAccelMovement = 0; 5056 do { 5057 final int dir = position >= 0 ? 1 : -1; 5058 switch (step) { 5059 // If we are going to execute the first step, then we want 5060 // to do this as soon as possible instead of waiting for 5061 // a full movement, in order to make things look responsive. 5062 case 0: 5063 if (absPosition < precision) { 5064 return movement; 5065 } 5066 movement += dir; 5067 nonAccelMovement += dir; 5068 step = 1; 5069 break; 5070 // If we have generated the first movement, then we need 5071 // to wait for the second complete trackball motion before 5072 // generating the second discrete movement. 5073 case 1: 5074 if (absPosition < 2) { 5075 return movement; 5076 } 5077 movement += dir; 5078 nonAccelMovement += dir; 5079 position += dir > 0 ? -2 : 2; 5080 absPosition = Math.abs(position); 5081 step = 2; 5082 break; 5083 // After the first two, we generate discrete movements 5084 // consistently with the trackball, applying an acceleration 5085 // if the trackball is moving quickly. This is a simple 5086 // acceleration on top of what we already compute based 5087 // on how quickly the wheel is being turned, to apply 5088 // a longer increasing acceleration to continuous movement 5089 // in one direction. 5090 default: 5091 if (absPosition < 1) { 5092 return movement; 5093 } 5094 movement += dir; 5095 position += dir >= 0 ? -1 : 1; 5096 absPosition = Math.abs(position); 5097 float acc = acceleration; 5098 acc *= 1.1f; 5099 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5100 break; 5101 } 5102 } while (true); 5103 } 5104 } 5105 5106 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5107 public CalledFromWrongThreadException(String msg) { 5108 super(msg); 5109 } 5110 } 5111 5112 private SurfaceHolder mHolder = new SurfaceHolder() { 5113 // we only need a SurfaceHolder for opengl. it would be nice 5114 // to implement everything else though, especially the callback 5115 // support (opengl doesn't make use of it right now, but eventually 5116 // will). 5117 public Surface getSurface() { 5118 return mSurface; 5119 } 5120 5121 public boolean isCreating() { 5122 return false; 5123 } 5124 5125 public void addCallback(Callback callback) { 5126 } 5127 5128 public void removeCallback(Callback callback) { 5129 } 5130 5131 public void setFixedSize(int width, int height) { 5132 } 5133 5134 public void setSizeFromLayout() { 5135 } 5136 5137 public void setFormat(int format) { 5138 } 5139 5140 public void setType(int type) { 5141 } 5142 5143 public void setKeepScreenOn(boolean screenOn) { 5144 } 5145 5146 public Canvas lockCanvas() { 5147 return null; 5148 } 5149 5150 public Canvas lockCanvas(Rect dirty) { 5151 return null; 5152 } 5153 5154 public void unlockCanvasAndPost(Canvas canvas) { 5155 } 5156 public Rect getSurfaceFrame() { 5157 return null; 5158 } 5159 }; 5160 5161 static RunQueue getRunQueue() { 5162 RunQueue rq = sRunQueues.get(); 5163 if (rq != null) { 5164 return rq; 5165 } 5166 rq = new RunQueue(); 5167 sRunQueues.set(rq); 5168 return rq; 5169 } 5170 5171 /** 5172 * The run queue is used to enqueue pending work from Views when no Handler is 5173 * attached. The work is executed during the next call to performTraversals on 5174 * the thread. 5175 * @hide 5176 */ 5177 static final class RunQueue { 5178 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5179 5180 void post(Runnable action) { 5181 postDelayed(action, 0); 5182 } 5183 5184 void postDelayed(Runnable action, long delayMillis) { 5185 HandlerAction handlerAction = new HandlerAction(); 5186 handlerAction.action = action; 5187 handlerAction.delay = delayMillis; 5188 5189 synchronized (mActions) { 5190 mActions.add(handlerAction); 5191 } 5192 } 5193 5194 void removeCallbacks(Runnable action) { 5195 final HandlerAction handlerAction = new HandlerAction(); 5196 handlerAction.action = action; 5197 5198 synchronized (mActions) { 5199 final ArrayList<HandlerAction> actions = mActions; 5200 5201 while (actions.remove(handlerAction)) { 5202 // Keep going 5203 } 5204 } 5205 } 5206 5207 void executeActions(Handler handler) { 5208 synchronized (mActions) { 5209 final ArrayList<HandlerAction> actions = mActions; 5210 final int count = actions.size(); 5211 5212 for (int i = 0; i < count; i++) { 5213 final HandlerAction handlerAction = actions.get(i); 5214 handler.postDelayed(handlerAction.action, handlerAction.delay); 5215 } 5216 5217 actions.clear(); 5218 } 5219 } 5220 5221 private static class HandlerAction { 5222 Runnable action; 5223 long delay; 5224 5225 @Override 5226 public boolean equals(Object o) { 5227 if (this == o) return true; 5228 if (o == null || getClass() != o.getClass()) return false; 5229 5230 HandlerAction that = (HandlerAction) o; 5231 return !(action != null ? !action.equals(that.action) : that.action != null); 5232 5233 } 5234 5235 @Override 5236 public int hashCode() { 5237 int result = action != null ? action.hashCode() : 0; 5238 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5239 return result; 5240 } 5241 } 5242 } 5243 5244 /** 5245 * Class for managing the accessibility interaction connection 5246 * based on the global accessibility state. 5247 */ 5248 final class AccessibilityInteractionConnectionManager 5249 implements AccessibilityStateChangeListener { 5250 public void onAccessibilityStateChanged(boolean enabled) { 5251 if (enabled) { 5252 ensureConnection(); 5253 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5254 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5255 View focusedView = mView.findFocus(); 5256 if (focusedView != null && focusedView != mView) { 5257 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5258 } 5259 } 5260 } else { 5261 ensureNoConnection(); 5262 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5263 } 5264 } 5265 5266 public void ensureConnection() { 5267 if (mAttachInfo != null) { 5268 final boolean registered = 5269 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5270 if (!registered) { 5271 mAttachInfo.mAccessibilityWindowId = 5272 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5273 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5274 } 5275 } 5276 } 5277 5278 public void ensureNoConnection() { 5279 final boolean registered = 5280 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5281 if (registered) { 5282 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5283 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5284 } 5285 } 5286 } 5287 5288 /** 5289 * This class is an interface this ViewAncestor provides to the 5290 * AccessibilityManagerService to the latter can interact with 5291 * the view hierarchy in this ViewAncestor. 5292 */ 5293 static final class AccessibilityInteractionConnection 5294 extends IAccessibilityInteractionConnection.Stub { 5295 private final WeakReference<ViewRootImpl> mViewRootImpl; 5296 5297 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5298 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5299 } 5300 5301 @Override 5302 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5303 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5304 int flags, int interrogatingPid, long interrogatingTid) { 5305 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5306 if (viewRootImpl != null && viewRootImpl.mView != null) { 5307 viewRootImpl.getAccessibilityInteractionController() 5308 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5309 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5310 } else { 5311 // We cannot make the call and notify the caller so it does not wait. 5312 try { 5313 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5314 } catch (RemoteException re) { 5315 /* best effort - ignore */ 5316 } 5317 } 5318 } 5319 5320 @Override 5321 public void performAccessibilityAction(long accessibilityNodeId, int action, 5322 Bundle arguments, int interactionId, 5323 IAccessibilityInteractionConnectionCallback callback, int flags, 5324 int interogatingPid, long interrogatingTid) { 5325 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5326 if (viewRootImpl != null && viewRootImpl.mView != null) { 5327 viewRootImpl.getAccessibilityInteractionController() 5328 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5329 interactionId, callback, flags, interogatingPid, interrogatingTid); 5330 } else { 5331 // We cannot make the call and notify the caller so it does not wait. 5332 try { 5333 callback.setPerformAccessibilityActionResult(false, interactionId); 5334 } catch (RemoteException re) { 5335 /* best effort - ignore */ 5336 } 5337 } 5338 } 5339 5340 @Override 5341 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5342 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5343 int flags, int interrogatingPid, long interrogatingTid) { 5344 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5345 if (viewRootImpl != null && viewRootImpl.mView != null) { 5346 viewRootImpl.getAccessibilityInteractionController() 5347 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5348 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5349 } else { 5350 // We cannot make the call and notify the caller so it does not wait. 5351 try { 5352 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5353 } catch (RemoteException re) { 5354 /* best effort - ignore */ 5355 } 5356 } 5357 } 5358 5359 @Override 5360 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5361 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5362 int flags, int interrogatingPid, long interrogatingTid) { 5363 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5364 if (viewRootImpl != null && viewRootImpl.mView != null) { 5365 viewRootImpl.getAccessibilityInteractionController() 5366 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5367 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5368 } else { 5369 // We cannot make the call and notify the caller so it does not wait. 5370 try { 5371 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5372 } catch (RemoteException re) { 5373 /* best effort - ignore */ 5374 } 5375 } 5376 } 5377 5378 @Override 5379 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5380 IAccessibilityInteractionConnectionCallback callback, int flags, 5381 int interrogatingPid, long interrogatingTid) { 5382 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5383 if (viewRootImpl != null && viewRootImpl.mView != null) { 5384 viewRootImpl.getAccessibilityInteractionController() 5385 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5386 callback, flags, interrogatingPid, interrogatingTid); 5387 } else { 5388 // We cannot make the call and notify the caller so it does not wait. 5389 try { 5390 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5391 } catch (RemoteException re) { 5392 /* best effort - ignore */ 5393 } 5394 } 5395 } 5396 5397 @Override 5398 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5399 IAccessibilityInteractionConnectionCallback callback, int flags, 5400 int interrogatingPid, long interrogatingTid) { 5401 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5402 if (viewRootImpl != null && viewRootImpl.mView != null) { 5403 viewRootImpl.getAccessibilityInteractionController() 5404 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5405 callback, flags, interrogatingPid, interrogatingTid); 5406 } else { 5407 // We cannot make the call and notify the caller so it does not wait. 5408 try { 5409 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5410 } catch (RemoteException re) { 5411 /* best effort - ignore */ 5412 } 5413 } 5414 } 5415 } 5416 5417 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5418 public View mSource; 5419 5420 public void run() { 5421 if (mSource != null) { 5422 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5423 mSource.resetAccessibilityStateChanged(); 5424 mSource = null; 5425 } 5426 } 5427 } 5428} 5429