ViewRootImpl.java revision 072ec96a4900d4616574733646ee46311cb5d2cb
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.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.Process; 50import android.os.RemoteException; 51import android.os.SystemClock; 52import android.os.SystemProperties; 53import android.util.AndroidRuntimeException; 54import android.util.DisplayMetrics; 55import android.util.EventLog; 56import android.util.Log; 57import android.util.LongSparseArray; 58import android.util.Pool; 59import android.util.Poolable; 60import android.util.PoolableManager; 61import android.util.Pools; 62import android.util.Slog; 63import android.util.TypedValue; 64import android.view.View.MeasureSpec; 65import android.view.accessibility.AccessibilityEvent; 66import android.view.accessibility.AccessibilityInteractionClient; 67import android.view.accessibility.AccessibilityManager; 68import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 69import android.view.accessibility.AccessibilityNodeInfo; 70import android.view.accessibility.AccessibilityNodeProvider; 71import android.view.accessibility.IAccessibilityInteractionConnection; 72import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 73import android.view.animation.AccelerateDecelerateInterpolator; 74import android.view.animation.Interpolator; 75import android.view.inputmethod.InputConnection; 76import android.view.inputmethod.InputMethodManager; 77import android.widget.Scroller; 78 79import com.android.internal.policy.PolicyManager; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.IInputMethodCallback; 82import com.android.internal.view.IInputMethodSession; 83import com.android.internal.view.RootViewSurfaceTaker; 84 85import java.io.IOException; 86import java.io.OutputStream; 87import java.lang.ref.WeakReference; 88import java.util.ArrayList; 89import java.util.List; 90 91/** 92 * The top of a view hierarchy, implementing the needed protocol between View 93 * and the WindowManager. This is for the most part an internal implementation 94 * detail of {@link WindowManagerImpl}. 95 * 96 * {@hide} 97 */ 98@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 99public final class ViewRootImpl extends Handler implements ViewParent, 100 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks, 101 Choreographer.OnDrawListener { 102 private static final String TAG = "ViewRootImpl"; 103 private static final boolean DBG = false; 104 private static final boolean LOCAL_LOGV = false; 105 /** @noinspection PointlessBooleanExpression*/ 106 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 107 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 108 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 109 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 110 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 112 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 113 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 114 private static final boolean DEBUG_FPS = 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 int mViewVisibility; 179 boolean mAppVisible = true; 180 int mOrigWindowType = -1; 181 182 // Set to true if the owner of this window is in the stopped state, 183 // so the window should no longer be active. 184 boolean mStopped = false; 185 186 boolean mLastInCompatMode = false; 187 188 SurfaceHolder.Callback2 mSurfaceHolderCallback; 189 BaseSurfaceHolder mSurfaceHolder; 190 boolean mIsCreating; 191 boolean mDrawingAllowed; 192 193 final Region mTransparentRegion; 194 final Region mPreviousTransparentRegion; 195 196 int mWidth; 197 int mHeight; 198 Rect mDirty; 199 final Rect mCurrentDirty = new Rect(); 200 final Rect mPreviousDirty = new Rect(); 201 boolean mIsAnimating; 202 203 CompatibilityInfo.Translator mTranslator; 204 205 final View.AttachInfo mAttachInfo; 206 InputChannel mInputChannel; 207 InputQueue.Callback mInputQueueCallback; 208 InputQueue mInputQueue; 209 FallbackEventHandler mFallbackEventHandler; 210 Choreographer mChoreographer; 211 212 final Rect mTempRect; // used in the transaction to not thrash the heap. 213 final Rect mVisRect; // used to retrieve visible rect of focused view. 214 215 boolean mTraversalScheduled; 216 long mLastTraversalFinishedTimeNanos; 217 long mLastDrawFinishedTimeNanos; 218 boolean mWillDrawSoon; 219 boolean mLayoutRequested; 220 boolean mFirst; 221 boolean mReportNextDraw; 222 boolean mFullRedrawNeeded; 223 boolean mNewSurfaceNeeded; 224 boolean mHasHadWindowFocus; 225 boolean mLastWasImTarget; 226 227 // Pool of queued input events. 228 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 229 private QueuedInputEvent mQueuedInputEventPool; 230 private int mQueuedInputEventPoolSize; 231 232 // Input event queue. 233 QueuedInputEvent mFirstPendingInputEvent; 234 QueuedInputEvent mCurrentInputEvent; 235 boolean mProcessInputEventsScheduled; 236 237 boolean mWindowAttributesChanged = false; 238 int mWindowAttributesChangesFlag = 0; 239 240 // These can be accessed by any thread, must be protected with a lock. 241 // Surface can never be reassigned or cleared (use Surface.clear()). 242 private final Surface mSurface = new Surface(); 243 244 boolean mAdded; 245 boolean mAddedTouchMode; 246 247 CompatibilityInfoHolder mCompatibilityInfo; 248 249 /*package*/ int mAddNesting; 250 251 // These are accessed by multiple threads. 252 final Rect mWinFrame; // frame given by window manager. 253 254 final Rect mPendingVisibleInsets = new Rect(); 255 final Rect mPendingContentInsets = new Rect(); 256 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 257 = new ViewTreeObserver.InternalInsetsInfo(); 258 259 final Configuration mLastConfiguration = new Configuration(); 260 final Configuration mPendingConfiguration = new Configuration(); 261 262 class ResizedInfo { 263 Rect coveredInsets; 264 Rect visibleInsets; 265 Configuration newConfig; 266 } 267 268 boolean mScrollMayChange; 269 int mSoftInputMode; 270 View mLastScrolledFocus; 271 int mScrollY; 272 int mCurScrollY; 273 Scroller mScroller; 274 HardwareLayer mResizeBuffer; 275 long mResizeBufferStartTime; 276 int mResizeBufferDuration; 277 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 278 private ArrayList<LayoutTransition> mPendingTransitions; 279 280 final ViewConfiguration mViewConfiguration; 281 282 /* Drag/drop */ 283 ClipDescription mDragDescription; 284 View mCurrentDragView; 285 volatile Object mLocalDragState; 286 final PointF mDragPoint = new PointF(); 287 final PointF mLastTouchPoint = new PointF(); 288 289 private boolean mProfileRendering; 290 private Thread mRenderProfiler; 291 private volatile boolean mRenderProfilingEnabled; 292 293 // Variables to track frames per second, enabled via DEBUG_FPS flag 294 private long mFpsStartTime = -1; 295 private long mFpsPrevTime = -1; 296 private int mFpsNumFrames; 297 298 /** 299 * see {@link #playSoundEffect(int)} 300 */ 301 AudioManager mAudioManager; 302 303 final AccessibilityManager mAccessibilityManager; 304 305 AccessibilityInteractionController mAccessibilityInteractionController; 306 307 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 308 309 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 310 311 AccessibilityPrefetchStrategy mAccessibilityPrefetchStrategy; 312 313 private final int mDensity; 314 315 /** 316 * Consistency verifier for debugging purposes. 317 */ 318 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 319 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 320 new InputEventConsistencyVerifier(this, 0) : null; 321 322 public static IWindowSession getWindowSession(Looper mainLooper) { 323 synchronized (mStaticInit) { 324 if (!mInitialized) { 325 try { 326 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 327 IWindowManager windowManager = Display.getWindowManager(); 328 sWindowSession = windowManager.openSession( 329 imm.getClient(), imm.getInputContext()); 330 float animatorScale = windowManager.getAnimationScale(2); 331 ValueAnimator.setDurationScale(animatorScale); 332 mInitialized = true; 333 } catch (RemoteException e) { 334 } 335 } 336 return sWindowSession; 337 } 338 } 339 340 static final class SystemUiVisibilityInfo { 341 int seq; 342 int globalVisibility; 343 int localValue; 344 int localChanges; 345 } 346 347 public ViewRootImpl(Context context) { 348 super(); 349 350 if (MEASURE_LATENCY) { 351 if (lt == null) { 352 lt = new LatencyTimer(100, 1000); 353 } 354 } 355 356 // Initialize the statics when this class is first instantiated. This is 357 // done here instead of in the static block because Zygote does not 358 // allow the spawning of threads. 359 getWindowSession(context.getMainLooper()); 360 361 mThread = Thread.currentThread(); 362 mLocation = new WindowLeaked(null); 363 mLocation.fillInStackTrace(); 364 mWidth = -1; 365 mHeight = -1; 366 mDirty = new Rect(); 367 mTempRect = new Rect(); 368 mVisRect = new Rect(); 369 mWinFrame = new Rect(); 370 mWindow = new W(this); 371 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 372 mInputMethodCallback = new InputMethodCallback(this); 373 mViewVisibility = View.GONE; 374 mTransparentRegion = new Region(); 375 mPreviousTransparentRegion = new Region(); 376 mFirst = true; // true for the first time the view is added 377 mAdded = false; 378 mAccessibilityManager = AccessibilityManager.getInstance(context); 379 mAccessibilityInteractionConnectionManager = 380 new AccessibilityInteractionConnectionManager(); 381 mAccessibilityManager.addAccessibilityStateChangeListener( 382 mAccessibilityInteractionConnectionManager); 383 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 384 mViewConfiguration = ViewConfiguration.get(context); 385 mDensity = context.getResources().getDisplayMetrics().densityDpi; 386 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 387 mProfileRendering = Boolean.parseBoolean( 388 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 389 mChoreographer = Choreographer.getInstance(); 390 } 391 392 /** 393 * @return True if the application requests the use of a separate render thread, 394 * false otherwise 395 */ 396 private static boolean isRenderThreadRequested(Context context) { 397 synchronized (sRenderThreadQueryLock) { 398 if (!sRenderThreadQueried) { 399 final PackageManager packageManager = context.getPackageManager(); 400 final String packageName = context.getApplicationInfo().packageName; 401 try { 402 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 403 PackageManager.GET_META_DATA); 404 if (applicationInfo.metaData != null) { 405 sUseRenderThread = applicationInfo.metaData.getBoolean( 406 "android.graphics.renderThread", false); 407 } 408 } catch (PackageManager.NameNotFoundException e) { 409 } finally { 410 sRenderThreadQueried = true; 411 } 412 } 413 return sUseRenderThread; 414 } 415 } 416 417 public static void addFirstDrawHandler(Runnable callback) { 418 synchronized (sFirstDrawHandlers) { 419 if (!sFirstDrawComplete) { 420 sFirstDrawHandlers.add(callback); 421 } 422 } 423 } 424 425 public static void addConfigCallback(ComponentCallbacks callback) { 426 synchronized (sConfigCallbacks) { 427 sConfigCallbacks.add(callback); 428 } 429 } 430 431 // FIXME for perf testing only 432 private boolean mProfile = false; 433 434 /** 435 * Call this to profile the next traversal call. 436 * FIXME for perf testing only. Remove eventually 437 */ 438 public void profile() { 439 mProfile = true; 440 } 441 442 /** 443 * Indicates whether we are in touch mode. Calling this method triggers an IPC 444 * call and should be avoided whenever possible. 445 * 446 * @return True, if the device is in touch mode, false otherwise. 447 * 448 * @hide 449 */ 450 static boolean isInTouchMode() { 451 if (mInitialized) { 452 try { 453 return sWindowSession.getInTouchMode(); 454 } catch (RemoteException e) { 455 } 456 } 457 return false; 458 } 459 460 /** 461 * We have one child 462 */ 463 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 464 synchronized (this) { 465 if (mView == null) { 466 mChoreographer.addOnDrawListener(this); 467 468 mView = view; 469 mFallbackEventHandler.setView(view); 470 mWindowAttributes.copyFrom(attrs); 471 attrs = mWindowAttributes; 472 473 if (view instanceof RootViewSurfaceTaker) { 474 mSurfaceHolderCallback = 475 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 476 if (mSurfaceHolderCallback != null) { 477 mSurfaceHolder = new TakenSurfaceHolder(); 478 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 479 } 480 } 481 482 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 483 mTranslator = compatibilityInfo.getTranslator(); 484 485 // If the application owns the surface, don't enable hardware acceleration 486 if (mSurfaceHolder == null) { 487 enableHardwareAcceleration(mView.getContext(), attrs); 488 } 489 490 boolean restore = false; 491 if (mTranslator != null) { 492 mSurface.setCompatibilityTranslator(mTranslator); 493 restore = true; 494 attrs.backup(); 495 mTranslator.translateWindowLayout(attrs); 496 } 497 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 498 499 if (!compatibilityInfo.supportsScreen()) { 500 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 501 mLastInCompatMode = true; 502 } 503 504 mSoftInputMode = attrs.softInputMode; 505 mWindowAttributesChanged = true; 506 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 507 mAttachInfo.mRootView = view; 508 mAttachInfo.mScalingRequired = mTranslator != null; 509 mAttachInfo.mApplicationScale = 510 mTranslator == null ? 1.0f : mTranslator.applicationScale; 511 if (panelParentView != null) { 512 mAttachInfo.mPanelParentWindowToken 513 = panelParentView.getApplicationWindowToken(); 514 } 515 mAdded = true; 516 int res; /* = WindowManagerImpl.ADD_OKAY; */ 517 518 // Schedule the first layout -before- adding to the window 519 // manager, to make sure we do the relayout before receiving 520 // any other events from the system. 521 requestLayout(); 522 if ((mWindowAttributes.inputFeatures 523 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 524 mInputChannel = new InputChannel(); 525 } 526 try { 527 mOrigWindowType = mWindowAttributes.type; 528 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 529 getHostVisibility(), mAttachInfo.mContentInsets, 530 mInputChannel); 531 } catch (RemoteException e) { 532 mAdded = false; 533 mView = null; 534 mAttachInfo.mRootView = null; 535 mInputChannel = null; 536 mFallbackEventHandler.setView(null); 537 unscheduleTraversals(); 538 throw new RuntimeException("Adding window failed", e); 539 } finally { 540 if (restore) { 541 attrs.restore(); 542 } 543 } 544 545 if (mTranslator != null) { 546 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 547 } 548 mPendingContentInsets.set(mAttachInfo.mContentInsets); 549 mPendingVisibleInsets.set(0, 0, 0, 0); 550 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 551 if (res < WindowManagerImpl.ADD_OKAY) { 552 mView = null; 553 mAttachInfo.mRootView = null; 554 mAdded = false; 555 mFallbackEventHandler.setView(null); 556 unscheduleTraversals(); 557 switch (res) { 558 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 559 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 560 throw new WindowManagerImpl.BadTokenException( 561 "Unable to add window -- token " + attrs.token 562 + " is not valid; is your activity running?"); 563 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 564 throw new WindowManagerImpl.BadTokenException( 565 "Unable to add window -- token " + attrs.token 566 + " is not for an application"); 567 case WindowManagerImpl.ADD_APP_EXITING: 568 throw new WindowManagerImpl.BadTokenException( 569 "Unable to add window -- app for token " + attrs.token 570 + " is exiting"); 571 case WindowManagerImpl.ADD_DUPLICATE_ADD: 572 throw new WindowManagerImpl.BadTokenException( 573 "Unable to add window -- window " + mWindow 574 + " has already been added"); 575 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 576 // Silently ignore -- we would have just removed it 577 // right away, anyway. 578 return; 579 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 580 throw new WindowManagerImpl.BadTokenException( 581 "Unable to add window " + mWindow + 582 " -- another window of this type already exists"); 583 case WindowManagerImpl.ADD_PERMISSION_DENIED: 584 throw new WindowManagerImpl.BadTokenException( 585 "Unable to add window " + mWindow + 586 " -- permission denied for this window type"); 587 } 588 throw new RuntimeException( 589 "Unable to add window -- unknown error code " + res); 590 } 591 592 if (view instanceof RootViewSurfaceTaker) { 593 mInputQueueCallback = 594 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 595 } 596 if (mInputChannel != null) { 597 if (mInputQueueCallback != null) { 598 mInputQueue = new InputQueue(mInputChannel); 599 mInputQueueCallback.onInputQueueCreated(mInputQueue); 600 } else { 601 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 602 Looper.myLooper()); 603 } 604 } 605 606 view.assignParent(this); 607 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 608 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 609 610 if (mAccessibilityManager.isEnabled()) { 611 mAccessibilityInteractionConnectionManager.ensureConnection(); 612 } 613 } 614 } 615 } 616 617 void destroyHardwareResources() { 618 if (mAttachInfo.mHardwareRenderer != null) { 619 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 620 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 621 } 622 mAttachInfo.mHardwareRenderer.destroy(false); 623 } 624 } 625 626 void terminateHardwareResources() { 627 if (mAttachInfo.mHardwareRenderer != null) { 628 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 629 mAttachInfo.mHardwareRenderer.destroy(false); 630 } 631 } 632 633 void destroyHardwareLayers() { 634 if (mThread != Thread.currentThread()) { 635 if (mAttachInfo.mHardwareRenderer != null && 636 mAttachInfo.mHardwareRenderer.isEnabled()) { 637 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 638 } 639 } else { 640 if (mAttachInfo.mHardwareRenderer != null && 641 mAttachInfo.mHardwareRenderer.isEnabled()) { 642 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 643 } 644 } 645 } 646 647 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 648 mAttachInfo.mHardwareAccelerated = false; 649 mAttachInfo.mHardwareAccelerationRequested = false; 650 651 // Don't enable hardware acceleration when the application is in compatibility mode 652 if (mTranslator != null) return; 653 654 // Try to enable hardware acceleration if requested 655 final boolean hardwareAccelerated = 656 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 657 658 if (hardwareAccelerated) { 659 if (!HardwareRenderer.isAvailable()) { 660 return; 661 } 662 663 // Persistent processes (including the system) should not do 664 // accelerated rendering on low-end devices. In that case, 665 // sRendererDisabled will be set. In addition, the system process 666 // itself should never do accelerated rendering. In that case, both 667 // sRendererDisabled and sSystemRendererDisabled are set. When 668 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 669 // can be used by code on the system process to escape that and enable 670 // HW accelerated drawing. (This is basically for the lock screen.) 671 672 final boolean fakeHwAccelerated = (attrs.privateFlags & 673 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 674 final boolean forceHwAccelerated = (attrs.privateFlags & 675 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 676 677 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 678 && forceHwAccelerated)) { 679 // Don't enable hardware acceleration when we're not on the main thread 680 if (!HardwareRenderer.sSystemRendererDisabled && 681 Looper.getMainLooper() != Looper.myLooper()) { 682 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 683 + "acceleration outside of the main thread, aborting"); 684 return; 685 } 686 687 boolean renderThread = isRenderThreadRequested(context); 688 if (renderThread) { 689 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 690 } 691 692 if (mAttachInfo.mHardwareRenderer != null) { 693 mAttachInfo.mHardwareRenderer.destroy(true); 694 } 695 696 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 697 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 698 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 699 = mAttachInfo.mHardwareRenderer != null; 700 701 } else if (fakeHwAccelerated) { 702 // The window had wanted to use hardware acceleration, but this 703 // is not allowed in its process. By setting this flag, it can 704 // still render as if it was accelerated. This is basically for 705 // the preview windows the window manager shows for launching 706 // applications, so they will look more like the app being launched. 707 mAttachInfo.mHardwareAccelerationRequested = true; 708 } 709 } 710 } 711 712 public View getView() { 713 return mView; 714 } 715 716 final WindowLeaked getLocation() { 717 return mLocation; 718 } 719 720 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 721 synchronized (this) { 722 int oldSoftInputMode = mWindowAttributes.softInputMode; 723 // preserve compatible window flag if exists. 724 int compatibleWindowFlag = 725 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 726 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 727 mWindowAttributes.flags |= compatibleWindowFlag; 728 729 if (newView) { 730 mSoftInputMode = attrs.softInputMode; 731 requestLayout(); 732 } 733 // Don't lose the mode we last auto-computed. 734 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 735 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 736 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 737 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 738 | (oldSoftInputMode 739 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 740 } 741 mWindowAttributesChanged = true; 742 scheduleTraversals(); 743 } 744 } 745 746 void handleAppVisibility(boolean visible) { 747 if (mAppVisible != visible) { 748 mAppVisible = visible; 749 scheduleTraversals(); 750 } 751 } 752 753 void handleGetNewSurface() { 754 mNewSurfaceNeeded = true; 755 mFullRedrawNeeded = true; 756 scheduleTraversals(); 757 } 758 759 /** 760 * {@inheritDoc} 761 */ 762 public void requestLayout() { 763 checkThread(); 764 mLayoutRequested = true; 765 scheduleTraversals(); 766 } 767 768 /** 769 * {@inheritDoc} 770 */ 771 public boolean isLayoutRequested() { 772 return mLayoutRequested; 773 } 774 775 public void invalidateChild(View child, Rect dirty) { 776 checkThread(); 777 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 778 if (dirty == null) { 779 // Fast invalidation for GL-enabled applications; GL must redraw everything 780 invalidate(); 781 return; 782 } 783 if (mCurScrollY != 0 || mTranslator != null) { 784 mTempRect.set(dirty); 785 dirty = mTempRect; 786 if (mCurScrollY != 0) { 787 dirty.offset(0, -mCurScrollY); 788 } 789 if (mTranslator != null) { 790 mTranslator.translateRectInAppWindowToScreen(dirty); 791 } 792 if (mAttachInfo.mScalingRequired) { 793 dirty.inset(-1, -1); 794 } 795 } 796 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 797 mAttachInfo.mSetIgnoreDirtyState = true; 798 mAttachInfo.mIgnoreDirtyState = true; 799 } 800 mDirty.union(dirty); 801 if (!mWillDrawSoon) { 802 scheduleTraversals(); 803 } 804 } 805 806 void invalidate() { 807 mDirty.set(0, 0, mWidth, mHeight); 808 scheduleTraversals(); 809 } 810 811 void setStopped(boolean stopped) { 812 if (mStopped != stopped) { 813 mStopped = stopped; 814 if (!stopped) { 815 scheduleTraversals(); 816 } 817 } 818 } 819 820 public ViewParent getParent() { 821 return null; 822 } 823 824 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 825 invalidateChild(null, dirty); 826 return null; 827 } 828 829 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 830 if (child != mView) { 831 throw new RuntimeException("child is not mine, honest!"); 832 } 833 // Note: don't apply scroll offset, because we want to know its 834 // visibility in the virtual canvas being given to the view hierarchy. 835 return r.intersect(0, 0, mWidth, mHeight); 836 } 837 838 public void bringChildToFront(View child) { 839 } 840 841 public void scheduleTraversals() { 842 if (!mTraversalScheduled) { 843 mTraversalScheduled = true; 844 mChoreographer.scheduleDraw(); 845 } 846 } 847 848 public void unscheduleTraversals() { 849 mTraversalScheduled = false; 850 } 851 852 @Override 853 public void onDraw() { 854 if (mInputEventReceiver != null) { 855 mInputEventReceiver.consumeBatchedInputEvents(); 856 } 857 doProcessInputEvents(); 858 859 if (mTraversalScheduled) { 860 mTraversalScheduled = false; 861 doTraversal(); 862 } 863 } 864 865 int getHostVisibility() { 866 return mAppVisible ? mView.getVisibility() : View.GONE; 867 } 868 869 void disposeResizeBuffer() { 870 if (mResizeBuffer != null) { 871 mResizeBuffer.destroy(); 872 mResizeBuffer = null; 873 } 874 } 875 876 /** 877 * Add LayoutTransition to the list of transitions to be started in the next traversal. 878 * This list will be cleared after the transitions on the list are start()'ed. These 879 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 880 * happens during the layout phase of traversal, which we want to complete before any of the 881 * animations are started (because those animations may side-effect properties that layout 882 * depends upon, like the bounding rectangles of the affected views). So we add the transition 883 * to the list and it is started just prior to starting the drawing phase of traversal. 884 * 885 * @param transition The LayoutTransition to be started on the next traversal. 886 * 887 * @hide 888 */ 889 public void requestTransitionStart(LayoutTransition transition) { 890 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 891 if (mPendingTransitions == null) { 892 mPendingTransitions = new ArrayList<LayoutTransition>(); 893 } 894 mPendingTransitions.add(transition); 895 } 896 } 897 898 private void doTraversal() { 899 if (mProfile) { 900 Debug.startMethodTracing("ViewAncestor"); 901 } 902 903 final long traversalStartTime; 904 if (ViewDebug.DEBUG_LATENCY) { 905 traversalStartTime = System.nanoTime(); 906 if (mLastTraversalFinishedTimeNanos != 0) { 907 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 908 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 909 + "ms since the last traversals finished."); 910 } else { 911 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 912 } 913 } 914 915 performTraversals(); 916 917 if (ViewDebug.DEBUG_LATENCY) { 918 long now = System.nanoTime(); 919 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 920 + ((now - traversalStartTime) * 0.000001f) 921 + "ms."); 922 mLastTraversalFinishedTimeNanos = now; 923 } 924 925 if (mProfile) { 926 Debug.stopMethodTracing(); 927 mProfile = false; 928 } 929 } 930 931 private void performTraversals() { 932 // cache mView since it is used so much below... 933 final View host = mView; 934 935 if (DBG) { 936 System.out.println("======================================"); 937 System.out.println("performTraversals"); 938 host.debug(); 939 } 940 941 if (host == null || !mAdded) 942 return; 943 944 mWillDrawSoon = true; 945 boolean windowSizeMayChange = false; 946 boolean newSurface = false; 947 boolean surfaceChanged = false; 948 WindowManager.LayoutParams lp = mWindowAttributes; 949 950 int desiredWindowWidth; 951 int desiredWindowHeight; 952 int childWidthMeasureSpec; 953 int childHeightMeasureSpec; 954 955 final View.AttachInfo attachInfo = mAttachInfo; 956 957 final int viewVisibility = getHostVisibility(); 958 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 959 || mNewSurfaceNeeded; 960 961 WindowManager.LayoutParams params = null; 962 if (mWindowAttributesChanged) { 963 mWindowAttributesChanged = false; 964 surfaceChanged = true; 965 params = lp; 966 } 967 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 968 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 969 params = lp; 970 mFullRedrawNeeded = true; 971 mLayoutRequested = true; 972 if (mLastInCompatMode) { 973 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 974 mLastInCompatMode = false; 975 } else { 976 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 977 mLastInCompatMode = true; 978 } 979 } 980 981 mWindowAttributesChangesFlag = 0; 982 983 Rect frame = mWinFrame; 984 if (mFirst) { 985 mFullRedrawNeeded = true; 986 mLayoutRequested = true; 987 988 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 989 // NOTE -- system code, won't try to do compat mode. 990 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 991 Point size = new Point(); 992 disp.getRealSize(size); 993 desiredWindowWidth = size.x; 994 desiredWindowHeight = size.y; 995 } else { 996 DisplayMetrics packageMetrics = 997 mView.getContext().getResources().getDisplayMetrics(); 998 desiredWindowWidth = packageMetrics.widthPixels; 999 desiredWindowHeight = packageMetrics.heightPixels; 1000 } 1001 1002 // For the very first time, tell the view hierarchy that it 1003 // is attached to the window. Note that at this point the surface 1004 // object is not initialized to its backing store, but soon it 1005 // will be (assuming the window is visible). 1006 attachInfo.mSurface = mSurface; 1007 // We used to use the following condition to choose 32 bits drawing caches: 1008 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1009 // However, windows are now always 32 bits by default, so choose 32 bits 1010 attachInfo.mUse32BitDrawingCache = true; 1011 attachInfo.mHasWindowFocus = false; 1012 attachInfo.mWindowVisibility = viewVisibility; 1013 attachInfo.mRecomputeGlobalAttributes = false; 1014 attachInfo.mKeepScreenOn = false; 1015 attachInfo.mSystemUiVisibility = 0; 1016 viewVisibilityChanged = false; 1017 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1018 host.dispatchAttachedToWindow(attachInfo, 0); 1019 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1020 1021 host.fitSystemWindows(mAttachInfo.mContentInsets); 1022 1023 } else { 1024 desiredWindowWidth = frame.width(); 1025 desiredWindowHeight = frame.height(); 1026 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1027 if (DEBUG_ORIENTATION) Log.v(TAG, 1028 "View " + host + " resized to: " + frame); 1029 mFullRedrawNeeded = true; 1030 mLayoutRequested = true; 1031 windowSizeMayChange = true; 1032 } 1033 } 1034 1035 if (viewVisibilityChanged) { 1036 attachInfo.mWindowVisibility = viewVisibility; 1037 host.dispatchWindowVisibilityChanged(viewVisibility); 1038 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1039 destroyHardwareResources(); 1040 } 1041 if (viewVisibility == View.GONE) { 1042 // After making a window gone, we will count it as being 1043 // shown for the first time the next time it gets focus. 1044 mHasHadWindowFocus = false; 1045 } 1046 } 1047 1048 boolean insetsChanged = false; 1049 1050 if (mLayoutRequested && !mStopped) { 1051 // Execute enqueued actions on every layout in case a view that was detached 1052 // enqueued an action after being detached 1053 getRunQueue().executeActions(attachInfo.mHandler); 1054 1055 final Resources res = mView.getContext().getResources(); 1056 1057 if (mFirst) { 1058 // make sure touch mode code executes by setting cached value 1059 // to opposite of the added touch mode. 1060 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1061 ensureTouchModeLocally(mAddedTouchMode); 1062 } else { 1063 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1064 insetsChanged = true; 1065 } 1066 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1067 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1068 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1069 + mAttachInfo.mVisibleInsets); 1070 } 1071 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1072 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1073 windowSizeMayChange = true; 1074 1075 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1076 // NOTE -- system code, won't try to do compat mode. 1077 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1078 Point size = new Point(); 1079 disp.getRealSize(size); 1080 desiredWindowWidth = size.x; 1081 desiredWindowHeight = size.y; 1082 } else { 1083 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1084 desiredWindowWidth = packageMetrics.widthPixels; 1085 desiredWindowHeight = packageMetrics.heightPixels; 1086 } 1087 } 1088 } 1089 1090 // Ask host how big it wants to be 1091 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1092 "Measuring " + host + " in display " + desiredWindowWidth 1093 + "x" + desiredWindowHeight + "..."); 1094 1095 boolean goodMeasure = false; 1096 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1097 // On large screens, we don't want to allow dialogs to just 1098 // stretch to fill the entire width of the screen to display 1099 // one line of text. First try doing the layout at a smaller 1100 // size to see if it will fit. 1101 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1102 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1103 int baseSize = 0; 1104 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1105 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1106 } 1107 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1108 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1109 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1110 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1111 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1112 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1113 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1114 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1115 goodMeasure = true; 1116 } else { 1117 // Didn't fit in that size... try expanding a bit. 1118 baseSize = (baseSize+desiredWindowWidth)/2; 1119 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1120 + baseSize); 1121 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1122 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1123 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1124 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1125 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1126 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1127 goodMeasure = true; 1128 } 1129 } 1130 } 1131 } 1132 1133 if (!goodMeasure) { 1134 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1135 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1136 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1137 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1138 windowSizeMayChange = true; 1139 } 1140 } 1141 1142 if (DBG) { 1143 System.out.println("======================================"); 1144 System.out.println("performTraversals -- after measure"); 1145 host.debug(); 1146 } 1147 } 1148 1149 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1150 //Log.i(TAG, "Computing view hierarchy attributes!"); 1151 attachInfo.mRecomputeGlobalAttributes = false; 1152 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1153 int oldVis = attachInfo.mSystemUiVisibility; 1154 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1155 attachInfo.mKeepScreenOn = false; 1156 attachInfo.mSystemUiVisibility = 0; 1157 attachInfo.mHasSystemUiListeners = false; 1158 host.dispatchCollectViewAttributes(0); 1159 if (attachInfo.mKeepScreenOn != oldScreenOn 1160 || attachInfo.mSystemUiVisibility != oldVis 1161 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1162 params = lp; 1163 } 1164 } 1165 if (attachInfo.mForceReportNewAttributes) { 1166 attachInfo.mForceReportNewAttributes = false; 1167 params = lp; 1168 } 1169 1170 if (mFirst || attachInfo.mViewVisibilityChanged) { 1171 attachInfo.mViewVisibilityChanged = false; 1172 int resizeMode = mSoftInputMode & 1173 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1174 // If we are in auto resize mode, then we need to determine 1175 // what mode to use now. 1176 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1177 final int N = attachInfo.mScrollContainers.size(); 1178 for (int i=0; i<N; i++) { 1179 if (attachInfo.mScrollContainers.get(i).isShown()) { 1180 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1181 } 1182 } 1183 if (resizeMode == 0) { 1184 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1185 } 1186 if ((lp.softInputMode & 1187 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1188 lp.softInputMode = (lp.softInputMode & 1189 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1190 resizeMode; 1191 params = lp; 1192 } 1193 } 1194 } 1195 1196 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1197 if (!PixelFormat.formatHasAlpha(params.format)) { 1198 params.format = PixelFormat.TRANSLUCENT; 1199 } 1200 } 1201 1202 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1203 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1204 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1205 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1206 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1207 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1208 1209 final boolean computesInternalInsets = 1210 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1211 1212 boolean insetsPending = false; 1213 int relayoutResult = 0; 1214 1215 if (mFirst || windowShouldResize || insetsChanged || 1216 viewVisibilityChanged || params != null) { 1217 1218 if (viewVisibility == View.VISIBLE) { 1219 // If this window is giving internal insets to the window 1220 // manager, and it is being added or changing its visibility, 1221 // then we want to first give the window manager "fake" 1222 // insets to cause it to effectively ignore the content of 1223 // the window during layout. This avoids it briefly causing 1224 // other windows to resize/move based on the raw frame of the 1225 // window, waiting until we can finish laying out this window 1226 // and get back to the window manager with the ultimately 1227 // computed insets. 1228 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1229 } 1230 1231 if (mSurfaceHolder != null) { 1232 mSurfaceHolder.mSurfaceLock.lock(); 1233 mDrawingAllowed = true; 1234 } 1235 1236 boolean hwInitialized = false; 1237 boolean contentInsetsChanged = false; 1238 boolean visibleInsetsChanged; 1239 boolean hadSurface = mSurface.isValid(); 1240 1241 try { 1242 int fl = 0; 1243 if (params != null) { 1244 fl = params.flags; 1245 if (attachInfo.mKeepScreenOn) { 1246 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1247 } 1248 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1249 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1250 } 1251 if (DEBUG_LAYOUT) { 1252 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1253 host.getMeasuredHeight() + ", params=" + params); 1254 } 1255 1256 final int surfaceGenerationId = mSurface.getGenerationId(); 1257 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1258 1259 if (params != null) { 1260 params.flags = fl; 1261 } 1262 1263 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1264 + " content=" + mPendingContentInsets.toShortString() 1265 + " visible=" + mPendingVisibleInsets.toShortString() 1266 + " surface=" + mSurface); 1267 1268 if (mPendingConfiguration.seq != 0) { 1269 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1270 + mPendingConfiguration); 1271 updateConfiguration(mPendingConfiguration, !mFirst); 1272 mPendingConfiguration.seq = 0; 1273 } 1274 1275 contentInsetsChanged = !mPendingContentInsets.equals( 1276 mAttachInfo.mContentInsets); 1277 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1278 mAttachInfo.mVisibleInsets); 1279 if (contentInsetsChanged) { 1280 if (mWidth > 0 && mHeight > 0 && 1281 mSurface != null && mSurface.isValid() && 1282 !mAttachInfo.mTurnOffWindowResizeAnim && 1283 mAttachInfo.mHardwareRenderer != null && 1284 mAttachInfo.mHardwareRenderer.isEnabled() && 1285 mAttachInfo.mHardwareRenderer.validate() && 1286 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1287 1288 disposeResizeBuffer(); 1289 1290 boolean completed = false; 1291 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1292 HardwareCanvas layerCanvas = null; 1293 try { 1294 if (mResizeBuffer == null) { 1295 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1296 mWidth, mHeight, false); 1297 } else if (mResizeBuffer.getWidth() != mWidth || 1298 mResizeBuffer.getHeight() != mHeight) { 1299 mResizeBuffer.resize(mWidth, mHeight); 1300 } 1301 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1302 layerCanvas.setViewport(mWidth, mHeight); 1303 layerCanvas.onPreDraw(null); 1304 final int restoreCount = layerCanvas.save(); 1305 1306 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1307 1308 int yoff; 1309 final boolean scrolling = mScroller != null 1310 && mScroller.computeScrollOffset(); 1311 if (scrolling) { 1312 yoff = mScroller.getCurrY(); 1313 mScroller.abortAnimation(); 1314 } else { 1315 yoff = mScrollY; 1316 } 1317 1318 layerCanvas.translate(0, -yoff); 1319 if (mTranslator != null) { 1320 mTranslator.translateCanvas(layerCanvas); 1321 } 1322 1323 mView.draw(layerCanvas); 1324 1325 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1326 mResizeBufferDuration = mView.getResources().getInteger( 1327 com.android.internal.R.integer.config_mediumAnimTime); 1328 completed = true; 1329 1330 layerCanvas.restoreToCount(restoreCount); 1331 } catch (OutOfMemoryError e) { 1332 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1333 } finally { 1334 if (layerCanvas != null) { 1335 layerCanvas.onPostDraw(); 1336 } 1337 if (mResizeBuffer != null) { 1338 mResizeBuffer.end(hwRendererCanvas); 1339 if (!completed) { 1340 mResizeBuffer.destroy(); 1341 mResizeBuffer = null; 1342 } 1343 } 1344 } 1345 } 1346 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1347 host.fitSystemWindows(mAttachInfo.mContentInsets); 1348 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1349 + mAttachInfo.mContentInsets); 1350 } 1351 if (visibleInsetsChanged) { 1352 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1353 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1354 + mAttachInfo.mVisibleInsets); 1355 } 1356 1357 if (!hadSurface) { 1358 if (mSurface.isValid()) { 1359 // If we are creating a new surface, then we need to 1360 // completely redraw it. Also, when we get to the 1361 // point of drawing it we will hold off and schedule 1362 // a new traversal instead. This is so we can tell the 1363 // window manager about all of the windows being displayed 1364 // before actually drawing them, so it can display then 1365 // all at once. 1366 newSurface = true; 1367 mFullRedrawNeeded = true; 1368 mPreviousTransparentRegion.setEmpty(); 1369 1370 if (mAttachInfo.mHardwareRenderer != null) { 1371 try { 1372 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1373 } catch (Surface.OutOfResourcesException e) { 1374 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1375 try { 1376 if (!sWindowSession.outOfMemory(mWindow)) { 1377 Slog.w(TAG, "No processes killed for memory; killing self"); 1378 Process.killProcess(Process.myPid()); 1379 } 1380 } catch (RemoteException ex) { 1381 } 1382 mLayoutRequested = true; // ask wm for a new surface next time. 1383 return; 1384 } 1385 } 1386 } 1387 } else if (!mSurface.isValid()) { 1388 // If the surface has been removed, then reset the scroll 1389 // positions. 1390 mLastScrolledFocus = null; 1391 mScrollY = mCurScrollY = 0; 1392 if (mScroller != null) { 1393 mScroller.abortAnimation(); 1394 } 1395 disposeResizeBuffer(); 1396 // Our surface is gone 1397 if (mAttachInfo.mHardwareRenderer != null && 1398 mAttachInfo.mHardwareRenderer.isEnabled()) { 1399 mAttachInfo.mHardwareRenderer.destroy(true); 1400 } 1401 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1402 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1403 mFullRedrawNeeded = true; 1404 try { 1405 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1406 } catch (Surface.OutOfResourcesException e) { 1407 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1408 try { 1409 if (!sWindowSession.outOfMemory(mWindow)) { 1410 Slog.w(TAG, "No processes killed for memory; killing self"); 1411 Process.killProcess(Process.myPid()); 1412 } 1413 } catch (RemoteException ex) { 1414 } 1415 mLayoutRequested = true; // ask wm for a new surface next time. 1416 return; 1417 } 1418 } 1419 } catch (RemoteException e) { 1420 } 1421 1422 if (DEBUG_ORIENTATION) Log.v( 1423 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1424 1425 attachInfo.mWindowLeft = frame.left; 1426 attachInfo.mWindowTop = frame.top; 1427 1428 // !!FIXME!! This next section handles the case where we did not get the 1429 // window size we asked for. We should avoid this by getting a maximum size from 1430 // the window session beforehand. 1431 mWidth = frame.width(); 1432 mHeight = frame.height(); 1433 1434 if (mSurfaceHolder != null) { 1435 // The app owns the surface; tell it about what is going on. 1436 if (mSurface.isValid()) { 1437 // XXX .copyFrom() doesn't work! 1438 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1439 mSurfaceHolder.mSurface = mSurface; 1440 } 1441 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1442 mSurfaceHolder.mSurfaceLock.unlock(); 1443 if (mSurface.isValid()) { 1444 if (!hadSurface) { 1445 mSurfaceHolder.ungetCallbacks(); 1446 1447 mIsCreating = true; 1448 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1449 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1450 if (callbacks != null) { 1451 for (SurfaceHolder.Callback c : callbacks) { 1452 c.surfaceCreated(mSurfaceHolder); 1453 } 1454 } 1455 surfaceChanged = true; 1456 } 1457 if (surfaceChanged) { 1458 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1459 lp.format, mWidth, mHeight); 1460 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1461 if (callbacks != null) { 1462 for (SurfaceHolder.Callback c : callbacks) { 1463 c.surfaceChanged(mSurfaceHolder, lp.format, 1464 mWidth, mHeight); 1465 } 1466 } 1467 } 1468 mIsCreating = false; 1469 } else if (hadSurface) { 1470 mSurfaceHolder.ungetCallbacks(); 1471 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1472 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1473 if (callbacks != null) { 1474 for (SurfaceHolder.Callback c : callbacks) { 1475 c.surfaceDestroyed(mSurfaceHolder); 1476 } 1477 } 1478 mSurfaceHolder.mSurfaceLock.lock(); 1479 try { 1480 mSurfaceHolder.mSurface = new Surface(); 1481 } finally { 1482 mSurfaceHolder.mSurfaceLock.unlock(); 1483 } 1484 } 1485 } 1486 1487 if (mAttachInfo.mHardwareRenderer != null && 1488 mAttachInfo.mHardwareRenderer.isEnabled()) { 1489 if (hwInitialized || windowShouldResize || 1490 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1491 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1492 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1493 if (!hwInitialized) { 1494 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1495 } 1496 } 1497 } 1498 1499 if (!mStopped) { 1500 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1501 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1502 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1503 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1504 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1505 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1506 1507 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1508 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1509 + " mHeight=" + mHeight 1510 + " measuredHeight=" + host.getMeasuredHeight() 1511 + " coveredInsetsChanged=" + contentInsetsChanged); 1512 1513 // Ask host how big it wants to be 1514 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1515 1516 // Implementation of weights from WindowManager.LayoutParams 1517 // We just grow the dimensions as needed and re-measure if 1518 // needs be 1519 int width = host.getMeasuredWidth(); 1520 int height = host.getMeasuredHeight(); 1521 boolean measureAgain = false; 1522 1523 if (lp.horizontalWeight > 0.0f) { 1524 width += (int) ((mWidth - width) * lp.horizontalWeight); 1525 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1526 MeasureSpec.EXACTLY); 1527 measureAgain = true; 1528 } 1529 if (lp.verticalWeight > 0.0f) { 1530 height += (int) ((mHeight - height) * lp.verticalWeight); 1531 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1532 MeasureSpec.EXACTLY); 1533 measureAgain = true; 1534 } 1535 1536 if (measureAgain) { 1537 if (DEBUG_LAYOUT) Log.v(TAG, 1538 "And hey let's measure once more: width=" + width 1539 + " height=" + height); 1540 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1541 } 1542 1543 mLayoutRequested = true; 1544 } 1545 } 1546 } 1547 1548 final boolean didLayout = mLayoutRequested && !mStopped; 1549 boolean triggerGlobalLayoutListener = didLayout 1550 || attachInfo.mRecomputeGlobalAttributes; 1551 if (didLayout) { 1552 mLayoutRequested = false; 1553 mScrollMayChange = true; 1554 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1555 TAG, "Laying out " + host + " to (" + 1556 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1557 long startTime = 0L; 1558 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1559 startTime = SystemClock.elapsedRealtime(); 1560 } 1561 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1562 1563 if (false && ViewDebug.consistencyCheckEnabled) { 1564 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1565 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1566 + "please refer to the logs with the tag " 1567 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1568 } 1569 } 1570 1571 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1572 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1573 } 1574 1575 // By this point all views have been sized and positionned 1576 // We can compute the transparent area 1577 1578 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1579 // start out transparent 1580 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1581 host.getLocationInWindow(mTmpLocation); 1582 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1583 mTmpLocation[0] + host.mRight - host.mLeft, 1584 mTmpLocation[1] + host.mBottom - host.mTop); 1585 1586 host.gatherTransparentRegion(mTransparentRegion); 1587 if (mTranslator != null) { 1588 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1589 } 1590 1591 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1592 mPreviousTransparentRegion.set(mTransparentRegion); 1593 // reconfigure window manager 1594 try { 1595 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1596 } catch (RemoteException e) { 1597 } 1598 } 1599 } 1600 1601 if (DBG) { 1602 System.out.println("======================================"); 1603 System.out.println("performTraversals -- after setFrame"); 1604 host.debug(); 1605 } 1606 } 1607 1608 if (triggerGlobalLayoutListener) { 1609 attachInfo.mRecomputeGlobalAttributes = false; 1610 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1611 1612 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1613 postSendWindowContentChangedCallback(); 1614 } 1615 } 1616 1617 if (computesInternalInsets) { 1618 // Clear the original insets. 1619 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1620 insets.reset(); 1621 1622 // Compute new insets in place. 1623 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1624 1625 // Tell the window manager. 1626 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1627 mLastGivenInsets.set(insets); 1628 1629 // Translate insets to screen coordinates if needed. 1630 final Rect contentInsets; 1631 final Rect visibleInsets; 1632 final Region touchableRegion; 1633 if (mTranslator != null) { 1634 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1635 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1636 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1637 } else { 1638 contentInsets = insets.contentInsets; 1639 visibleInsets = insets.visibleInsets; 1640 touchableRegion = insets.touchableRegion; 1641 } 1642 1643 try { 1644 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1645 contentInsets, visibleInsets, touchableRegion); 1646 } catch (RemoteException e) { 1647 } 1648 } 1649 } 1650 1651 if (mFirst) { 1652 // handle first focus request 1653 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1654 + mView.hasFocus()); 1655 if (mView != null) { 1656 if (!mView.hasFocus()) { 1657 mView.requestFocus(View.FOCUS_FORWARD); 1658 mFocusedView = mRealFocusedView = mView.findFocus(); 1659 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1660 + mFocusedView); 1661 } else { 1662 mRealFocusedView = mView.findFocus(); 1663 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1664 + mRealFocusedView); 1665 } 1666 } 1667 } 1668 1669 mFirst = false; 1670 mWillDrawSoon = false; 1671 mNewSurfaceNeeded = false; 1672 mViewVisibility = viewVisibility; 1673 1674 if (mAttachInfo.mHasWindowFocus) { 1675 final boolean imTarget = WindowManager.LayoutParams 1676 .mayUseInputMethod(mWindowAttributes.flags); 1677 if (imTarget != mLastWasImTarget) { 1678 mLastWasImTarget = imTarget; 1679 InputMethodManager imm = InputMethodManager.peekInstance(); 1680 if (imm != null && imTarget) { 1681 imm.startGettingWindowFocus(mView); 1682 imm.onWindowFocus(mView, mView.findFocus(), 1683 mWindowAttributes.softInputMode, 1684 !mHasHadWindowFocus, mWindowAttributes.flags); 1685 } 1686 } 1687 } 1688 1689 // Remember if we must report the next draw. 1690 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1691 mReportNextDraw = true; 1692 } 1693 1694 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1695 viewVisibility != View.VISIBLE; 1696 1697 if (!cancelDraw && !newSurface) { 1698 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1699 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1700 mPendingTransitions.get(i).startChangingAnimations(); 1701 } 1702 mPendingTransitions.clear(); 1703 } 1704 1705 performDraw(); 1706 } else { 1707 // End any pending transitions on this non-visible window 1708 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1709 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1710 mPendingTransitions.get(i).endChangingAnimations(); 1711 } 1712 mPendingTransitions.clear(); 1713 } 1714 1715 if (viewVisibility == View.VISIBLE) { 1716 // Try again 1717 scheduleTraversals(); 1718 } 1719 } 1720 } 1721 1722 public void requestTransparentRegion(View child) { 1723 // the test below should not fail unless someone is messing with us 1724 checkThread(); 1725 if (mView == child) { 1726 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1727 // Need to make sure we re-evaluate the window attributes next 1728 // time around, to ensure the window has the correct format. 1729 mWindowAttributesChanged = true; 1730 mWindowAttributesChangesFlag = 0; 1731 requestLayout(); 1732 } 1733 } 1734 1735 /** 1736 * Figures out the measure spec for the root view in a window based on it's 1737 * layout params. 1738 * 1739 * @param windowSize 1740 * The available width or height of the window 1741 * 1742 * @param rootDimension 1743 * The layout params for one dimension (width or height) of the 1744 * window. 1745 * 1746 * @return The measure spec to use to measure the root view. 1747 */ 1748 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1749 int measureSpec; 1750 switch (rootDimension) { 1751 1752 case ViewGroup.LayoutParams.MATCH_PARENT: 1753 // Window can't resize. Force root view to be windowSize. 1754 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1755 break; 1756 case ViewGroup.LayoutParams.WRAP_CONTENT: 1757 // Window can resize. Set max size for root view. 1758 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1759 break; 1760 default: 1761 // Window wants to be an exact size. Force root view to be that size. 1762 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1763 break; 1764 } 1765 return measureSpec; 1766 } 1767 1768 int mHardwareYOffset; 1769 int mResizeAlpha; 1770 final Paint mResizePaint = new Paint(); 1771 1772 public void onHardwarePreDraw(HardwareCanvas canvas) { 1773 canvas.translate(0, -mHardwareYOffset); 1774 } 1775 1776 public void onHardwarePostDraw(HardwareCanvas canvas) { 1777 if (mResizeBuffer != null) { 1778 mResizePaint.setAlpha(mResizeAlpha); 1779 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1780 } 1781 } 1782 1783 /** 1784 * @hide 1785 */ 1786 void outputDisplayList(View view) { 1787 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1788 DisplayList displayList = view.getDisplayList(); 1789 if (displayList != null) { 1790 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1791 } 1792 } 1793 } 1794 1795 /** 1796 * @see #PROPERTY_PROFILE_RENDERING 1797 */ 1798 private void profileRendering(boolean enabled) { 1799 if (mProfileRendering) { 1800 mRenderProfilingEnabled = enabled; 1801 if (mRenderProfiler == null) { 1802 mRenderProfiler = new Thread(new Runnable() { 1803 @Override 1804 public void run() { 1805 Log.d(TAG, "Starting profiling thread"); 1806 while (mRenderProfilingEnabled) { 1807 mAttachInfo.mHandler.post(new Runnable() { 1808 @Override 1809 public void run() { 1810 mDirty.set(0, 0, mWidth, mHeight); 1811 scheduleTraversals(); 1812 } 1813 }); 1814 try { 1815 // TODO: This should use vsync when we get an API 1816 Thread.sleep(15); 1817 } catch (InterruptedException e) { 1818 Log.d(TAG, "Exiting profiling thread"); 1819 } 1820 } 1821 } 1822 }, "Rendering Profiler"); 1823 mRenderProfiler.start(); 1824 } else { 1825 mRenderProfiler.interrupt(); 1826 mRenderProfiler = null; 1827 } 1828 } 1829 } 1830 1831 /** 1832 * Called from draw() when DEBUG_FPS is enabled 1833 */ 1834 private void trackFPS() { 1835 // Tracks frames per second drawn. First value in a series of draws may be bogus 1836 // because it down not account for the intervening idle time 1837 long nowTime = System.currentTimeMillis(); 1838 if (mFpsStartTime < 0) { 1839 mFpsStartTime = mFpsPrevTime = nowTime; 1840 mFpsNumFrames = 0; 1841 } else { 1842 ++mFpsNumFrames; 1843 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1844 long frameTime = nowTime - mFpsPrevTime; 1845 long totalTime = nowTime - mFpsStartTime; 1846 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1847 mFpsPrevTime = nowTime; 1848 if (totalTime > 1000) { 1849 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1850 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1851 mFpsStartTime = nowTime; 1852 mFpsNumFrames = 0; 1853 } 1854 } 1855 } 1856 1857 private void performDraw() { 1858 final long drawStartTime; 1859 if (ViewDebug.DEBUG_LATENCY) { 1860 drawStartTime = System.nanoTime(); 1861 if (mLastDrawFinishedTimeNanos != 0) { 1862 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 1863 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 1864 + "ms since the last draw finished."); 1865 } else { 1866 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 1867 } 1868 } 1869 1870 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1871 mFullRedrawNeeded = false; 1872 draw(fullRedrawNeeded); 1873 1874 if (ViewDebug.DEBUG_LATENCY) { 1875 long now = System.nanoTime(); 1876 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 1877 + ((now - drawStartTime) * 0.000001f) 1878 + "ms."); 1879 mLastDrawFinishedTimeNanos = now; 1880 } 1881 1882 if (mReportNextDraw) { 1883 mReportNextDraw = false; 1884 1885 if (LOCAL_LOGV) { 1886 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1887 } 1888 if (mSurfaceHolder != null && mSurface.isValid()) { 1889 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1890 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1891 if (callbacks != null) { 1892 for (SurfaceHolder.Callback c : callbacks) { 1893 if (c instanceof SurfaceHolder.Callback2) { 1894 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1895 mSurfaceHolder); 1896 } 1897 } 1898 } 1899 } 1900 try { 1901 sWindowSession.finishDrawing(mWindow); 1902 } catch (RemoteException e) { 1903 } 1904 } 1905 } 1906 1907 private void draw(boolean fullRedrawNeeded) { 1908 Surface surface = mSurface; 1909 if (surface == null || !surface.isValid()) { 1910 return; 1911 } 1912 1913 if (DEBUG_FPS) { 1914 trackFPS(); 1915 } 1916 1917 if (!sFirstDrawComplete) { 1918 synchronized (sFirstDrawHandlers) { 1919 sFirstDrawComplete = true; 1920 final int count = sFirstDrawHandlers.size(); 1921 for (int i = 0; i< count; i++) { 1922 post(sFirstDrawHandlers.get(i)); 1923 } 1924 } 1925 } 1926 1927 scrollToRectOrFocus(null, false); 1928 1929 if (mAttachInfo.mViewScrollChanged) { 1930 mAttachInfo.mViewScrollChanged = false; 1931 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1932 } 1933 1934 int yoff; 1935 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1936 if (animating) { 1937 yoff = mScroller.getCurrY(); 1938 } else { 1939 yoff = mScrollY; 1940 } 1941 if (mCurScrollY != yoff) { 1942 mCurScrollY = yoff; 1943 fullRedrawNeeded = true; 1944 } 1945 1946 final float appScale = mAttachInfo.mApplicationScale; 1947 final boolean scalingRequired = mAttachInfo.mScalingRequired; 1948 1949 int resizeAlpha = 0; 1950 if (mResizeBuffer != null) { 1951 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1952 if (deltaTime < mResizeBufferDuration) { 1953 float amt = deltaTime/(float) mResizeBufferDuration; 1954 amt = mResizeInterpolator.getInterpolation(amt); 1955 animating = true; 1956 resizeAlpha = 255 - (int)(amt*255); 1957 } else { 1958 disposeResizeBuffer(); 1959 } 1960 } 1961 1962 final Rect dirty = mDirty; 1963 if (mSurfaceHolder != null) { 1964 // The app owns the surface, we won't draw. 1965 dirty.setEmpty(); 1966 if (animating) { 1967 if (mScroller != null) { 1968 mScroller.abortAnimation(); 1969 } 1970 disposeResizeBuffer(); 1971 } 1972 return; 1973 } 1974 1975 if (fullRedrawNeeded) { 1976 mAttachInfo.mIgnoreDirtyState = true; 1977 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1978 } 1979 1980 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1981 Log.v(TAG, "Draw " + mView + "/" 1982 + mWindowAttributes.getTitle() 1983 + ": dirty={" + dirty.left + "," + dirty.top 1984 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1985 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1986 appScale + ", width=" + mWidth + ", height=" + mHeight); 1987 } 1988 1989 if (!dirty.isEmpty() || mIsAnimating) { 1990 if (mAttachInfo.mHardwareRenderer != null 1991 && mAttachInfo.mHardwareRenderer.isEnabled()) { 1992 // Draw with hardware renderer. 1993 mIsAnimating = false; 1994 mHardwareYOffset = yoff; 1995 mResizeAlpha = resizeAlpha; 1996 1997 mCurrentDirty.set(dirty); 1998 mCurrentDirty.union(mPreviousDirty); 1999 mPreviousDirty.set(dirty); 2000 dirty.setEmpty(); 2001 2002 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, 2003 animating ? null : mCurrentDirty)) { 2004 mPreviousDirty.set(0, 0, mWidth, mHeight); 2005 } 2006 } else { 2007 // Draw with software renderer. 2008 Canvas canvas; 2009 try { 2010 int left = dirty.left; 2011 int top = dirty.top; 2012 int right = dirty.right; 2013 int bottom = dirty.bottom; 2014 2015 final long lockCanvasStartTime; 2016 if (ViewDebug.DEBUG_LATENCY) { 2017 lockCanvasStartTime = System.nanoTime(); 2018 } 2019 2020 canvas = mSurface.lockCanvas(dirty); 2021 2022 if (ViewDebug.DEBUG_LATENCY) { 2023 long now = System.nanoTime(); 2024 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2025 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2026 } 2027 2028 if (left != dirty.left || top != dirty.top || right != dirty.right || 2029 bottom != dirty.bottom) { 2030 mAttachInfo.mIgnoreDirtyState = true; 2031 } 2032 2033 // TODO: Do this in native 2034 canvas.setDensity(mDensity); 2035 } catch (Surface.OutOfResourcesException e) { 2036 Log.e(TAG, "OutOfResourcesException locking surface", e); 2037 try { 2038 if (!sWindowSession.outOfMemory(mWindow)) { 2039 Slog.w(TAG, "No processes killed for memory; killing self"); 2040 Process.killProcess(Process.myPid()); 2041 } 2042 } catch (RemoteException ex) { 2043 } 2044 mLayoutRequested = true; // ask wm for a new surface next time. 2045 return; 2046 } catch (IllegalArgumentException e) { 2047 Log.e(TAG, "IllegalArgumentException locking surface", e); 2048 // Don't assume this is due to out of memory, it could be 2049 // something else, and if it is something else then we could 2050 // kill stuff (or ourself) for no reason. 2051 mLayoutRequested = true; // ask wm for a new surface next time. 2052 return; 2053 } 2054 2055 try { 2056 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2057 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2058 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2059 //canvas.drawARGB(255, 255, 0, 0); 2060 } 2061 2062 long startTime = 0L; 2063 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2064 startTime = SystemClock.elapsedRealtime(); 2065 } 2066 2067 // If this bitmap's format includes an alpha channel, we 2068 // need to clear it before drawing so that the child will 2069 // properly re-composite its drawing on a transparent 2070 // background. This automatically respects the clip/dirty region 2071 // or 2072 // If we are applying an offset, we need to clear the area 2073 // where the offset doesn't appear to avoid having garbage 2074 // left in the blank areas. 2075 if (!canvas.isOpaque() || yoff != 0) { 2076 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2077 } 2078 2079 dirty.setEmpty(); 2080 mIsAnimating = false; 2081 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2082 mView.mPrivateFlags |= View.DRAWN; 2083 2084 if (DEBUG_DRAW) { 2085 Context cxt = mView.getContext(); 2086 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2087 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2088 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2089 } 2090 try { 2091 canvas.translate(0, -yoff); 2092 if (mTranslator != null) { 2093 mTranslator.translateCanvas(canvas); 2094 } 2095 canvas.setScreenDensity(scalingRequired 2096 ? DisplayMetrics.DENSITY_DEVICE : 0); 2097 mAttachInfo.mSetIgnoreDirtyState = false; 2098 2099 final long drawStartTime; 2100 if (ViewDebug.DEBUG_LATENCY) { 2101 drawStartTime = System.nanoTime(); 2102 } 2103 2104 mView.draw(canvas); 2105 2106 if (ViewDebug.DEBUG_LATENCY) { 2107 long now = System.nanoTime(); 2108 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2109 + ((now - drawStartTime) * 0.000001f) + "ms"); 2110 } 2111 } finally { 2112 if (!mAttachInfo.mSetIgnoreDirtyState) { 2113 // Only clear the flag if it was not set during the mView.draw() call 2114 mAttachInfo.mIgnoreDirtyState = false; 2115 } 2116 } 2117 2118 if (false && ViewDebug.consistencyCheckEnabled) { 2119 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2120 } 2121 2122 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2123 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2124 } 2125 } finally { 2126 final long unlockCanvasAndPostStartTime; 2127 if (ViewDebug.DEBUG_LATENCY) { 2128 unlockCanvasAndPostStartTime = System.nanoTime(); 2129 } 2130 2131 surface.unlockCanvasAndPost(canvas); 2132 2133 if (ViewDebug.DEBUG_LATENCY) { 2134 long now = System.nanoTime(); 2135 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2136 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2137 } 2138 2139 if (LOCAL_LOGV) { 2140 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2141 } 2142 } 2143 } 2144 } 2145 2146 if (animating) { 2147 mFullRedrawNeeded = true; 2148 scheduleTraversals(); 2149 } 2150 } 2151 2152 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2153 final View.AttachInfo attachInfo = mAttachInfo; 2154 final Rect ci = attachInfo.mContentInsets; 2155 final Rect vi = attachInfo.mVisibleInsets; 2156 int scrollY = 0; 2157 boolean handled = false; 2158 2159 if (vi.left > ci.left || vi.top > ci.top 2160 || vi.right > ci.right || vi.bottom > ci.bottom) { 2161 // We'll assume that we aren't going to change the scroll 2162 // offset, since we want to avoid that unless it is actually 2163 // going to make the focus visible... otherwise we scroll 2164 // all over the place. 2165 scrollY = mScrollY; 2166 // We can be called for two different situations: during a draw, 2167 // to update the scroll position if the focus has changed (in which 2168 // case 'rectangle' is null), or in response to a 2169 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2170 // is non-null and we just want to scroll to whatever that 2171 // rectangle is). 2172 View focus = mRealFocusedView; 2173 2174 // When in touch mode, focus points to the previously focused view, 2175 // which may have been removed from the view hierarchy. The following 2176 // line checks whether the view is still in our hierarchy. 2177 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2178 mRealFocusedView = null; 2179 return false; 2180 } 2181 2182 if (focus != mLastScrolledFocus) { 2183 // If the focus has changed, then ignore any requests to scroll 2184 // to a rectangle; first we want to make sure the entire focus 2185 // view is visible. 2186 rectangle = null; 2187 } 2188 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2189 + " rectangle=" + rectangle + " ci=" + ci 2190 + " vi=" + vi); 2191 if (focus == mLastScrolledFocus && !mScrollMayChange 2192 && rectangle == null) { 2193 // Optimization: if the focus hasn't changed since last 2194 // time, and no layout has happened, then just leave things 2195 // as they are. 2196 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2197 + mScrollY + " vi=" + vi.toShortString()); 2198 } else if (focus != null) { 2199 // We need to determine if the currently focused view is 2200 // within the visible part of the window and, if not, apply 2201 // a pan so it can be seen. 2202 mLastScrolledFocus = focus; 2203 mScrollMayChange = false; 2204 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2205 // Try to find the rectangle from the focus view. 2206 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2207 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2208 + mView.getWidth() + " h=" + mView.getHeight() 2209 + " ci=" + ci.toShortString() 2210 + " vi=" + vi.toShortString()); 2211 if (rectangle == null) { 2212 focus.getFocusedRect(mTempRect); 2213 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2214 + ": focusRect=" + mTempRect.toShortString()); 2215 if (mView instanceof ViewGroup) { 2216 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2217 focus, mTempRect); 2218 } 2219 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2220 "Focus in window: focusRect=" 2221 + mTempRect.toShortString() 2222 + " visRect=" + mVisRect.toShortString()); 2223 } else { 2224 mTempRect.set(rectangle); 2225 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2226 "Request scroll to rect: " 2227 + mTempRect.toShortString() 2228 + " visRect=" + mVisRect.toShortString()); 2229 } 2230 if (mTempRect.intersect(mVisRect)) { 2231 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2232 "Focus window visible rect: " 2233 + mTempRect.toShortString()); 2234 if (mTempRect.height() > 2235 (mView.getHeight()-vi.top-vi.bottom)) { 2236 // If the focus simply is not going to fit, then 2237 // best is probably just to leave things as-is. 2238 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2239 "Too tall; leaving scrollY=" + scrollY); 2240 } else if ((mTempRect.top-scrollY) < vi.top) { 2241 scrollY -= vi.top - (mTempRect.top-scrollY); 2242 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2243 "Top covered; scrollY=" + scrollY); 2244 } else if ((mTempRect.bottom-scrollY) 2245 > (mView.getHeight()-vi.bottom)) { 2246 scrollY += (mTempRect.bottom-scrollY) 2247 - (mView.getHeight()-vi.bottom); 2248 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2249 "Bottom covered; scrollY=" + scrollY); 2250 } 2251 handled = true; 2252 } 2253 } 2254 } 2255 } 2256 2257 if (scrollY != mScrollY) { 2258 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2259 + mScrollY + " , new=" + scrollY); 2260 if (!immediate && mResizeBuffer == null) { 2261 if (mScroller == null) { 2262 mScroller = new Scroller(mView.getContext()); 2263 } 2264 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2265 } else if (mScroller != null) { 2266 mScroller.abortAnimation(); 2267 } 2268 mScrollY = scrollY; 2269 } 2270 2271 return handled; 2272 } 2273 2274 public void requestChildFocus(View child, View focused) { 2275 checkThread(); 2276 2277 if (DEBUG_INPUT_RESIZE) { 2278 Log.v(TAG, "Request child focus: focus now " + focused); 2279 } 2280 2281 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2282 scheduleTraversals(); 2283 2284 mFocusedView = mRealFocusedView = focused; 2285 } 2286 2287 public void clearChildFocus(View child) { 2288 checkThread(); 2289 2290 if (DEBUG_INPUT_RESIZE) { 2291 Log.v(TAG, "Clearing child focus"); 2292 } 2293 2294 mOldFocusedView = mFocusedView; 2295 2296 // Invoke the listener only if there is no view to take focus 2297 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2298 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2299 } 2300 2301 mFocusedView = mRealFocusedView = null; 2302 } 2303 2304 public void focusableViewAvailable(View v) { 2305 checkThread(); 2306 2307 if (mView != null) { 2308 if (!mView.hasFocus()) { 2309 v.requestFocus(); 2310 } else { 2311 // the one case where will transfer focus away from the current one 2312 // is if the current view is a view group that prefers to give focus 2313 // to its children first AND the view is a descendant of it. 2314 mFocusedView = mView.findFocus(); 2315 boolean descendantsHaveDibsOnFocus = 2316 (mFocusedView instanceof ViewGroup) && 2317 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2318 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2319 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2320 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2321 v.requestFocus(); 2322 } 2323 } 2324 } 2325 } 2326 2327 public void recomputeViewAttributes(View child) { 2328 checkThread(); 2329 if (mView == child) { 2330 mAttachInfo.mRecomputeGlobalAttributes = true; 2331 if (!mWillDrawSoon) { 2332 scheduleTraversals(); 2333 } 2334 } 2335 } 2336 2337 void dispatchDetachedFromWindow() { 2338 if (mView != null && mView.mAttachInfo != null) { 2339 if (mAttachInfo.mHardwareRenderer != null && 2340 mAttachInfo.mHardwareRenderer.isEnabled()) { 2341 mAttachInfo.mHardwareRenderer.validate(); 2342 } 2343 mView.dispatchDetachedFromWindow(); 2344 } 2345 2346 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2347 mAccessibilityManager.removeAccessibilityStateChangeListener( 2348 mAccessibilityInteractionConnectionManager); 2349 removeSendWindowContentChangedCallback(); 2350 2351 mView = null; 2352 mAttachInfo.mRootView = null; 2353 mAttachInfo.mSurface = null; 2354 2355 destroyHardwareRenderer(); 2356 2357 mSurface.release(); 2358 2359 if (mInputQueueCallback != null && mInputQueue != null) { 2360 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2361 mInputQueueCallback = null; 2362 mInputQueue = null; 2363 } else if (mInputEventReceiver != null) { 2364 mInputEventReceiver.dispose(); 2365 mInputEventReceiver = null; 2366 } 2367 try { 2368 sWindowSession.remove(mWindow); 2369 } catch (RemoteException e) { 2370 } 2371 2372 // Dispose the input channel after removing the window so the Window Manager 2373 // doesn't interpret the input channel being closed as an abnormal termination. 2374 if (mInputChannel != null) { 2375 mInputChannel.dispose(); 2376 mInputChannel = null; 2377 } 2378 2379 mChoreographer.removeOnDrawListener(this); 2380 } 2381 2382 void updateConfiguration(Configuration config, boolean force) { 2383 if (DEBUG_CONFIGURATION) Log.v(TAG, 2384 "Applying new config to window " 2385 + mWindowAttributes.getTitle() 2386 + ": " + config); 2387 2388 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2389 if (ci != null) { 2390 config = new Configuration(config); 2391 ci.applyToConfiguration(config); 2392 } 2393 2394 synchronized (sConfigCallbacks) { 2395 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2396 sConfigCallbacks.get(i).onConfigurationChanged(config); 2397 } 2398 } 2399 if (mView != null) { 2400 // At this point the resources have been updated to 2401 // have the most recent config, whatever that is. Use 2402 // the on in them which may be newer. 2403 config = mView.getResources().getConfiguration(); 2404 if (force || mLastConfiguration.diff(config) != 0) { 2405 mLastConfiguration.setTo(config); 2406 mView.dispatchConfigurationChanged(config); 2407 } 2408 } 2409 } 2410 2411 /** 2412 * Return true if child is an ancestor of parent, (or equal to the parent). 2413 */ 2414 private static boolean isViewDescendantOf(View child, View parent) { 2415 if (child == parent) { 2416 return true; 2417 } 2418 2419 final ViewParent theParent = child.getParent(); 2420 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2421 } 2422 2423 private static void forceLayout(View view) { 2424 view.forceLayout(); 2425 if (view instanceof ViewGroup) { 2426 ViewGroup group = (ViewGroup) view; 2427 final int count = group.getChildCount(); 2428 for (int i = 0; i < count; i++) { 2429 forceLayout(group.getChildAt(i)); 2430 } 2431 } 2432 } 2433 2434 public final static int DIE = 1001; 2435 public final static int RESIZED = 1002; 2436 public final static int RESIZED_REPORT = 1003; 2437 public final static int WINDOW_FOCUS_CHANGED = 1004; 2438 public final static int DISPATCH_KEY = 1005; 2439 public final static int DISPATCH_APP_VISIBILITY = 1008; 2440 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2441 public final static int IME_FINISHED_EVENT = 1010; 2442 public final static int DISPATCH_KEY_FROM_IME = 1011; 2443 public final static int FINISH_INPUT_CONNECTION = 1012; 2444 public final static int CHECK_FOCUS = 1013; 2445 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2446 public final static int DISPATCH_DRAG_EVENT = 1015; 2447 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2448 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2449 public final static int DISPATCH_GENERIC_MOTION = 1018; 2450 public final static int UPDATE_CONFIGURATION = 1019; 2451 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2452 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2453 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2454 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2455 public final static int DO_PROCESS_INPUT_EVENTS = 1024; 2456 2457 @Override 2458 public String getMessageName(Message message) { 2459 switch (message.what) { 2460 case DIE: 2461 return "DIE"; 2462 case RESIZED: 2463 return "RESIZED"; 2464 case RESIZED_REPORT: 2465 return "RESIZED_REPORT"; 2466 case WINDOW_FOCUS_CHANGED: 2467 return "WINDOW_FOCUS_CHANGED"; 2468 case DISPATCH_KEY: 2469 return "DISPATCH_KEY"; 2470 case DISPATCH_APP_VISIBILITY: 2471 return "DISPATCH_APP_VISIBILITY"; 2472 case DISPATCH_GET_NEW_SURFACE: 2473 return "DISPATCH_GET_NEW_SURFACE"; 2474 case IME_FINISHED_EVENT: 2475 return "IME_FINISHED_EVENT"; 2476 case DISPATCH_KEY_FROM_IME: 2477 return "DISPATCH_KEY_FROM_IME"; 2478 case FINISH_INPUT_CONNECTION: 2479 return "FINISH_INPUT_CONNECTION"; 2480 case CHECK_FOCUS: 2481 return "CHECK_FOCUS"; 2482 case CLOSE_SYSTEM_DIALOGS: 2483 return "CLOSE_SYSTEM_DIALOGS"; 2484 case DISPATCH_DRAG_EVENT: 2485 return "DISPATCH_DRAG_EVENT"; 2486 case DISPATCH_DRAG_LOCATION_EVENT: 2487 return "DISPATCH_DRAG_LOCATION_EVENT"; 2488 case DISPATCH_SYSTEM_UI_VISIBILITY: 2489 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2490 case DISPATCH_GENERIC_MOTION: 2491 return "DISPATCH_GENERIC_MOTION"; 2492 case UPDATE_CONFIGURATION: 2493 return "UPDATE_CONFIGURATION"; 2494 case DO_PERFORM_ACCESSIBILITY_ACTION: 2495 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2496 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2497 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2498 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2499 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2500 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2501 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2502 case DO_PROCESS_INPUT_EVENTS: 2503 return "DO_PROCESS_INPUT_EVENTS"; 2504 } 2505 return super.getMessageName(message); 2506 } 2507 2508 @Override 2509 public void handleMessage(Message msg) { 2510 switch (msg.what) { 2511 case View.AttachInfo.INVALIDATE_MSG: 2512 ((View) msg.obj).invalidate(); 2513 break; 2514 case View.AttachInfo.INVALIDATE_RECT_MSG: 2515 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2516 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2517 info.release(); 2518 break; 2519 case IME_FINISHED_EVENT: 2520 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2521 break; 2522 case DO_PROCESS_INPUT_EVENTS: 2523 mProcessInputEventsScheduled = false; 2524 doProcessInputEvents(); 2525 break; 2526 case DISPATCH_APP_VISIBILITY: 2527 handleAppVisibility(msg.arg1 != 0); 2528 break; 2529 case DISPATCH_GET_NEW_SURFACE: 2530 handleGetNewSurface(); 2531 break; 2532 case RESIZED: 2533 ResizedInfo ri = (ResizedInfo)msg.obj; 2534 2535 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2536 && mPendingContentInsets.equals(ri.coveredInsets) 2537 && mPendingVisibleInsets.equals(ri.visibleInsets) 2538 && ((ResizedInfo)msg.obj).newConfig == null) { 2539 break; 2540 } 2541 // fall through... 2542 case RESIZED_REPORT: 2543 if (mAdded) { 2544 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2545 if (config != null) { 2546 updateConfiguration(config, false); 2547 } 2548 mWinFrame.left = 0; 2549 mWinFrame.right = msg.arg1; 2550 mWinFrame.top = 0; 2551 mWinFrame.bottom = msg.arg2; 2552 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2553 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2554 if (msg.what == RESIZED_REPORT) { 2555 mReportNextDraw = true; 2556 } 2557 2558 if (mView != null) { 2559 forceLayout(mView); 2560 } 2561 requestLayout(); 2562 } 2563 break; 2564 case WINDOW_FOCUS_CHANGED: { 2565 if (mAdded) { 2566 boolean hasWindowFocus = msg.arg1 != 0; 2567 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2568 2569 profileRendering(hasWindowFocus); 2570 2571 if (hasWindowFocus) { 2572 boolean inTouchMode = msg.arg2 != 0; 2573 ensureTouchModeLocally(inTouchMode); 2574 2575 if (mAttachInfo.mHardwareRenderer != null && 2576 mSurface != null && mSurface.isValid()) { 2577 mFullRedrawNeeded = true; 2578 try { 2579 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2580 mHolder); 2581 } catch (Surface.OutOfResourcesException e) { 2582 Log.e(TAG, "OutOfResourcesException locking surface", e); 2583 try { 2584 if (!sWindowSession.outOfMemory(mWindow)) { 2585 Slog.w(TAG, "No processes killed for memory; killing self"); 2586 Process.killProcess(Process.myPid()); 2587 } 2588 } catch (RemoteException ex) { 2589 } 2590 // Retry in a bit. 2591 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2592 return; 2593 } 2594 } 2595 } 2596 2597 mLastWasImTarget = WindowManager.LayoutParams 2598 .mayUseInputMethod(mWindowAttributes.flags); 2599 2600 InputMethodManager imm = InputMethodManager.peekInstance(); 2601 if (mView != null) { 2602 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2603 imm.startGettingWindowFocus(mView); 2604 } 2605 mAttachInfo.mKeyDispatchState.reset(); 2606 mView.dispatchWindowFocusChanged(hasWindowFocus); 2607 } 2608 2609 // Note: must be done after the focus change callbacks, 2610 // so all of the view state is set up correctly. 2611 if (hasWindowFocus) { 2612 if (imm != null && mLastWasImTarget) { 2613 imm.onWindowFocus(mView, mView.findFocus(), 2614 mWindowAttributes.softInputMode, 2615 !mHasHadWindowFocus, mWindowAttributes.flags); 2616 } 2617 // Clear the forward bit. We can just do this directly, since 2618 // the window manager doesn't care about it. 2619 mWindowAttributes.softInputMode &= 2620 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2621 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2622 .softInputMode &= 2623 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2624 mHasHadWindowFocus = true; 2625 } 2626 2627 if (hasWindowFocus && mView != null) { 2628 sendAccessibilityEvents(); 2629 } 2630 } 2631 } break; 2632 case DIE: 2633 doDie(); 2634 break; 2635 case DISPATCH_KEY: { 2636 KeyEvent event = (KeyEvent)msg.obj; 2637 enqueueInputEvent(event, null, 0, true); 2638 } break; 2639 case DISPATCH_KEY_FROM_IME: { 2640 if (LOCAL_LOGV) Log.v( 2641 TAG, "Dispatching key " 2642 + msg.obj + " from IME to " + mView); 2643 KeyEvent event = (KeyEvent)msg.obj; 2644 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2645 // The IME is trying to say this event is from the 2646 // system! Bad bad bad! 2647 //noinspection UnusedAssignment 2648 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2649 } 2650 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2651 } break; 2652 case FINISH_INPUT_CONNECTION: { 2653 InputMethodManager imm = InputMethodManager.peekInstance(); 2654 if (imm != null) { 2655 imm.reportFinishInputConnection((InputConnection)msg.obj); 2656 } 2657 } break; 2658 case CHECK_FOCUS: { 2659 InputMethodManager imm = InputMethodManager.peekInstance(); 2660 if (imm != null) { 2661 imm.checkFocus(); 2662 } 2663 } break; 2664 case CLOSE_SYSTEM_DIALOGS: { 2665 if (mView != null) { 2666 mView.onCloseSystemDialogs((String)msg.obj); 2667 } 2668 } break; 2669 case DISPATCH_DRAG_EVENT: 2670 case DISPATCH_DRAG_LOCATION_EVENT: { 2671 DragEvent event = (DragEvent)msg.obj; 2672 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2673 handleDragEvent(event); 2674 } break; 2675 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2676 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2677 } break; 2678 case UPDATE_CONFIGURATION: { 2679 Configuration config = (Configuration)msg.obj; 2680 if (config.isOtherSeqNewer(mLastConfiguration)) { 2681 config = mLastConfiguration; 2682 } 2683 updateConfiguration(config, false); 2684 } break; 2685 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2686 if (mView != null) { 2687 getAccessibilityInteractionController() 2688 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2689 } 2690 } break; 2691 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2692 if (mView != null) { 2693 getAccessibilityInteractionController() 2694 .perfromAccessibilityActionUiThread(msg); 2695 } 2696 } break; 2697 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2698 if (mView != null) { 2699 getAccessibilityInteractionController() 2700 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2701 } 2702 } break; 2703 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2704 if (mView != null) { 2705 getAccessibilityInteractionController() 2706 .findAccessibilityNodeInfosByTextUiThread(msg); 2707 } 2708 } break; 2709 } 2710 } 2711 2712 /** 2713 * Something in the current window tells us we need to change the touch mode. For 2714 * example, we are not in touch mode, and the user touches the screen. 2715 * 2716 * If the touch mode has changed, tell the window manager, and handle it locally. 2717 * 2718 * @param inTouchMode Whether we want to be in touch mode. 2719 * @return True if the touch mode changed and focus changed was changed as a result 2720 */ 2721 boolean ensureTouchMode(boolean inTouchMode) { 2722 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2723 + "touch mode is " + mAttachInfo.mInTouchMode); 2724 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2725 2726 // tell the window manager 2727 try { 2728 sWindowSession.setInTouchMode(inTouchMode); 2729 } catch (RemoteException e) { 2730 throw new RuntimeException(e); 2731 } 2732 2733 // handle the change 2734 return ensureTouchModeLocally(inTouchMode); 2735 } 2736 2737 /** 2738 * Ensure that the touch mode for this window is set, and if it is changing, 2739 * take the appropriate action. 2740 * @param inTouchMode Whether we want to be in touch mode. 2741 * @return True if the touch mode changed and focus changed was changed as a result 2742 */ 2743 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2744 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2745 + "touch mode is " + mAttachInfo.mInTouchMode); 2746 2747 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2748 2749 mAttachInfo.mInTouchMode = inTouchMode; 2750 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2751 2752 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2753 } 2754 2755 private boolean enterTouchMode() { 2756 if (mView != null) { 2757 if (mView.hasFocus()) { 2758 // note: not relying on mFocusedView here because this could 2759 // be when the window is first being added, and mFocused isn't 2760 // set yet. 2761 final View focused = mView.findFocus(); 2762 if (focused != null && !focused.isFocusableInTouchMode()) { 2763 2764 final ViewGroup ancestorToTakeFocus = 2765 findAncestorToTakeFocusInTouchMode(focused); 2766 if (ancestorToTakeFocus != null) { 2767 // there is an ancestor that wants focus after its descendants that 2768 // is focusable in touch mode.. give it focus 2769 return ancestorToTakeFocus.requestFocus(); 2770 } else { 2771 // nothing appropriate to have focus in touch mode, clear it out 2772 mView.unFocus(); 2773 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2774 mFocusedView = null; 2775 mOldFocusedView = null; 2776 return true; 2777 } 2778 } 2779 } 2780 } 2781 return false; 2782 } 2783 2784 2785 /** 2786 * Find an ancestor of focused that wants focus after its descendants and is 2787 * focusable in touch mode. 2788 * @param focused The currently focused view. 2789 * @return An appropriate view, or null if no such view exists. 2790 */ 2791 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2792 ViewParent parent = focused.getParent(); 2793 while (parent instanceof ViewGroup) { 2794 final ViewGroup vgParent = (ViewGroup) parent; 2795 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2796 && vgParent.isFocusableInTouchMode()) { 2797 return vgParent; 2798 } 2799 if (vgParent.isRootNamespace()) { 2800 return null; 2801 } else { 2802 parent = vgParent.getParent(); 2803 } 2804 } 2805 return null; 2806 } 2807 2808 private boolean leaveTouchMode() { 2809 if (mView != null) { 2810 if (mView.hasFocus()) { 2811 // i learned the hard way to not trust mFocusedView :) 2812 mFocusedView = mView.findFocus(); 2813 if (!(mFocusedView instanceof ViewGroup)) { 2814 // some view has focus, let it keep it 2815 return false; 2816 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2817 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2818 // some view group has focus, and doesn't prefer its children 2819 // over itself for focus, so let them keep it. 2820 return false; 2821 } 2822 } 2823 2824 // find the best view to give focus to in this brave new non-touch-mode 2825 // world 2826 final View focused = focusSearch(null, View.FOCUS_DOWN); 2827 if (focused != null) { 2828 return focused.requestFocus(View.FOCUS_DOWN); 2829 } 2830 } 2831 return false; 2832 } 2833 2834 private void deliverInputEvent(QueuedInputEvent q) { 2835 if (ViewDebug.DEBUG_LATENCY) { 2836 q.mDeliverTimeNanos = System.nanoTime(); 2837 } 2838 2839 if (q.mEvent instanceof KeyEvent) { 2840 deliverKeyEvent(q); 2841 } else { 2842 final int source = q.mEvent.getSource(); 2843 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2844 deliverPointerEvent(q); 2845 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2846 deliverTrackballEvent(q); 2847 } else { 2848 deliverGenericMotionEvent(q); 2849 } 2850 } 2851 } 2852 2853 private void deliverPointerEvent(QueuedInputEvent q) { 2854 final MotionEvent event = (MotionEvent)q.mEvent; 2855 final boolean isTouchEvent = event.isTouchEvent(); 2856 if (mInputEventConsistencyVerifier != null) { 2857 if (isTouchEvent) { 2858 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2859 } else { 2860 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2861 } 2862 } 2863 2864 // If there is no view, then the event will not be handled. 2865 if (mView == null || !mAdded) { 2866 finishInputEvent(q, false); 2867 return; 2868 } 2869 2870 // Translate the pointer event for compatibility, if needed. 2871 if (mTranslator != null) { 2872 mTranslator.translateEventInScreenToAppWindow(event); 2873 } 2874 2875 // Enter touch mode on down or scroll. 2876 final int action = event.getAction(); 2877 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2878 ensureTouchMode(true); 2879 } 2880 2881 // Offset the scroll position. 2882 if (mCurScrollY != 0) { 2883 event.offsetLocation(0, mCurScrollY); 2884 } 2885 if (MEASURE_LATENCY) { 2886 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2887 } 2888 2889 // Remember the touch position for possible drag-initiation. 2890 if (isTouchEvent) { 2891 mLastTouchPoint.x = event.getRawX(); 2892 mLastTouchPoint.y = event.getRawY(); 2893 } 2894 2895 // Dispatch touch to view hierarchy. 2896 boolean handled = mView.dispatchPointerEvent(event); 2897 if (MEASURE_LATENCY) { 2898 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2899 } 2900 if (handled) { 2901 finishInputEvent(q, true); 2902 return; 2903 } 2904 2905 // Pointer event was unhandled. 2906 finishInputEvent(q, false); 2907 } 2908 2909 private void deliverTrackballEvent(QueuedInputEvent q) { 2910 final MotionEvent event = (MotionEvent)q.mEvent; 2911 if (mInputEventConsistencyVerifier != null) { 2912 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2913 } 2914 2915 // If there is no view, then the event will not be handled. 2916 if (mView == null || !mAdded) { 2917 finishInputEvent(q, false); 2918 return; 2919 } 2920 2921 // Deliver the trackball event to the view. 2922 if (mView.dispatchTrackballEvent(event)) { 2923 // If we reach this, we delivered a trackball event to mView and 2924 // mView consumed it. Because we will not translate the trackball 2925 // event into a key event, touch mode will not exit, so we exit 2926 // touch mode here. 2927 ensureTouchMode(false); 2928 2929 finishInputEvent(q, true); 2930 mLastTrackballTime = Integer.MIN_VALUE; 2931 return; 2932 } 2933 2934 // Translate the trackball event into DPAD keys and try to deliver those. 2935 final TrackballAxis x = mTrackballAxisX; 2936 final TrackballAxis y = mTrackballAxisY; 2937 2938 long curTime = SystemClock.uptimeMillis(); 2939 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2940 // It has been too long since the last movement, 2941 // so restart at the beginning. 2942 x.reset(0); 2943 y.reset(0); 2944 mLastTrackballTime = curTime; 2945 } 2946 2947 final int action = event.getAction(); 2948 final int metaState = event.getMetaState(); 2949 switch (action) { 2950 case MotionEvent.ACTION_DOWN: 2951 x.reset(2); 2952 y.reset(2); 2953 enqueueInputEvent(new KeyEvent(curTime, curTime, 2954 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2955 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2956 InputDevice.SOURCE_KEYBOARD)); 2957 break; 2958 case MotionEvent.ACTION_UP: 2959 x.reset(2); 2960 y.reset(2); 2961 enqueueInputEvent(new KeyEvent(curTime, curTime, 2962 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2963 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2964 InputDevice.SOURCE_KEYBOARD)); 2965 break; 2966 } 2967 2968 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2969 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2970 + " move=" + event.getX() 2971 + " / Y=" + y.position + " step=" 2972 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2973 + " move=" + event.getY()); 2974 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2975 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2976 2977 // Generate DPAD events based on the trackball movement. 2978 // We pick the axis that has moved the most as the direction of 2979 // the DPAD. When we generate DPAD events for one axis, then the 2980 // other axis is reset -- we don't want to perform DPAD jumps due 2981 // to slight movements in the trackball when making major movements 2982 // along the other axis. 2983 int keycode = 0; 2984 int movement = 0; 2985 float accel = 1; 2986 if (xOff > yOff) { 2987 movement = x.generate((2/event.getXPrecision())); 2988 if (movement != 0) { 2989 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2990 : KeyEvent.KEYCODE_DPAD_LEFT; 2991 accel = x.acceleration; 2992 y.reset(2); 2993 } 2994 } else if (yOff > 0) { 2995 movement = y.generate((2/event.getYPrecision())); 2996 if (movement != 0) { 2997 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2998 : KeyEvent.KEYCODE_DPAD_UP; 2999 accel = y.acceleration; 3000 x.reset(2); 3001 } 3002 } 3003 3004 if (keycode != 0) { 3005 if (movement < 0) movement = -movement; 3006 int accelMovement = (int)(movement * accel); 3007 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3008 + " accelMovement=" + accelMovement 3009 + " accel=" + accel); 3010 if (accelMovement > movement) { 3011 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3012 + keycode); 3013 movement--; 3014 int repeatCount = accelMovement - movement; 3015 enqueueInputEvent(new KeyEvent(curTime, curTime, 3016 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3017 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3018 InputDevice.SOURCE_KEYBOARD)); 3019 } 3020 while (movement > 0) { 3021 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3022 + keycode); 3023 movement--; 3024 curTime = SystemClock.uptimeMillis(); 3025 enqueueInputEvent(new KeyEvent(curTime, curTime, 3026 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3027 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3028 InputDevice.SOURCE_KEYBOARD)); 3029 enqueueInputEvent(new KeyEvent(curTime, curTime, 3030 KeyEvent.ACTION_UP, keycode, 0, metaState, 3031 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3032 InputDevice.SOURCE_KEYBOARD)); 3033 } 3034 mLastTrackballTime = curTime; 3035 } 3036 3037 // Unfortunately we can't tell whether the application consumed the keys, so 3038 // we always consider the trackball event handled. 3039 finishInputEvent(q, true); 3040 } 3041 3042 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3043 final MotionEvent event = (MotionEvent)q.mEvent; 3044 if (mInputEventConsistencyVerifier != null) { 3045 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3046 } 3047 3048 final int source = event.getSource(); 3049 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3050 3051 // If there is no view, then the event will not be handled. 3052 if (mView == null || !mAdded) { 3053 if (isJoystick) { 3054 updateJoystickDirection(event, false); 3055 } 3056 finishInputEvent(q, false); 3057 return; 3058 } 3059 3060 // Deliver the event to the view. 3061 if (mView.dispatchGenericMotionEvent(event)) { 3062 if (isJoystick) { 3063 updateJoystickDirection(event, false); 3064 } 3065 finishInputEvent(q, true); 3066 return; 3067 } 3068 3069 if (isJoystick) { 3070 // Translate the joystick event into DPAD keys and try to deliver those. 3071 updateJoystickDirection(event, true); 3072 finishInputEvent(q, true); 3073 } else { 3074 finishInputEvent(q, false); 3075 } 3076 } 3077 3078 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3079 final long time = event.getEventTime(); 3080 final int metaState = event.getMetaState(); 3081 final int deviceId = event.getDeviceId(); 3082 final int source = event.getSource(); 3083 3084 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3085 if (xDirection == 0) { 3086 xDirection = joystickAxisValueToDirection(event.getX()); 3087 } 3088 3089 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3090 if (yDirection == 0) { 3091 yDirection = joystickAxisValueToDirection(event.getY()); 3092 } 3093 3094 if (xDirection != mLastJoystickXDirection) { 3095 if (mLastJoystickXKeyCode != 0) { 3096 enqueueInputEvent(new KeyEvent(time, time, 3097 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3098 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3099 mLastJoystickXKeyCode = 0; 3100 } 3101 3102 mLastJoystickXDirection = xDirection; 3103 3104 if (xDirection != 0 && synthesizeNewKeys) { 3105 mLastJoystickXKeyCode = xDirection > 0 3106 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3107 enqueueInputEvent(new KeyEvent(time, time, 3108 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3109 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3110 } 3111 } 3112 3113 if (yDirection != mLastJoystickYDirection) { 3114 if (mLastJoystickYKeyCode != 0) { 3115 enqueueInputEvent(new KeyEvent(time, time, 3116 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3117 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3118 mLastJoystickYKeyCode = 0; 3119 } 3120 3121 mLastJoystickYDirection = yDirection; 3122 3123 if (yDirection != 0 && synthesizeNewKeys) { 3124 mLastJoystickYKeyCode = yDirection > 0 3125 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3126 enqueueInputEvent(new KeyEvent(time, time, 3127 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3128 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3129 } 3130 } 3131 } 3132 3133 private static int joystickAxisValueToDirection(float value) { 3134 if (value >= 0.5f) { 3135 return 1; 3136 } else if (value <= -0.5f) { 3137 return -1; 3138 } else { 3139 return 0; 3140 } 3141 } 3142 3143 /** 3144 * Returns true if the key is used for keyboard navigation. 3145 * @param keyEvent The key event. 3146 * @return True if the key is used for keyboard navigation. 3147 */ 3148 private static boolean isNavigationKey(KeyEvent keyEvent) { 3149 switch (keyEvent.getKeyCode()) { 3150 case KeyEvent.KEYCODE_DPAD_LEFT: 3151 case KeyEvent.KEYCODE_DPAD_RIGHT: 3152 case KeyEvent.KEYCODE_DPAD_UP: 3153 case KeyEvent.KEYCODE_DPAD_DOWN: 3154 case KeyEvent.KEYCODE_DPAD_CENTER: 3155 case KeyEvent.KEYCODE_PAGE_UP: 3156 case KeyEvent.KEYCODE_PAGE_DOWN: 3157 case KeyEvent.KEYCODE_MOVE_HOME: 3158 case KeyEvent.KEYCODE_MOVE_END: 3159 case KeyEvent.KEYCODE_TAB: 3160 case KeyEvent.KEYCODE_SPACE: 3161 case KeyEvent.KEYCODE_ENTER: 3162 return true; 3163 } 3164 return false; 3165 } 3166 3167 /** 3168 * Returns true if the key is used for typing. 3169 * @param keyEvent The key event. 3170 * @return True if the key is used for typing. 3171 */ 3172 private static boolean isTypingKey(KeyEvent keyEvent) { 3173 return keyEvent.getUnicodeChar() > 0; 3174 } 3175 3176 /** 3177 * See if the key event means we should leave touch mode (and leave touch mode if so). 3178 * @param event The key event. 3179 * @return Whether this key event should be consumed (meaning the act of 3180 * leaving touch mode alone is considered the event). 3181 */ 3182 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3183 // Only relevant in touch mode. 3184 if (!mAttachInfo.mInTouchMode) { 3185 return false; 3186 } 3187 3188 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3189 final int action = event.getAction(); 3190 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3191 return false; 3192 } 3193 3194 // Don't leave touch mode if the IME told us not to. 3195 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3196 return false; 3197 } 3198 3199 // If the key can be used for keyboard navigation then leave touch mode 3200 // and select a focused view if needed (in ensureTouchMode). 3201 // When a new focused view is selected, we consume the navigation key because 3202 // navigation doesn't make much sense unless a view already has focus so 3203 // the key's purpose is to set focus. 3204 if (isNavigationKey(event)) { 3205 return ensureTouchMode(false); 3206 } 3207 3208 // If the key can be used for typing then leave touch mode 3209 // and select a focused view if needed (in ensureTouchMode). 3210 // Always allow the view to process the typing key. 3211 if (isTypingKey(event)) { 3212 ensureTouchMode(false); 3213 return false; 3214 } 3215 3216 return false; 3217 } 3218 3219 private void deliverKeyEvent(QueuedInputEvent q) { 3220 final KeyEvent event = (KeyEvent)q.mEvent; 3221 if (mInputEventConsistencyVerifier != null) { 3222 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3223 } 3224 3225 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3226 // If there is no view, then the event will not be handled. 3227 if (mView == null || !mAdded) { 3228 finishInputEvent(q, false); 3229 return; 3230 } 3231 3232 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3233 3234 // Perform predispatching before the IME. 3235 if (mView.dispatchKeyEventPreIme(event)) { 3236 finishInputEvent(q, true); 3237 return; 3238 } 3239 3240 // Dispatch to the IME before propagating down the view hierarchy. 3241 // The IME will eventually call back into handleImeFinishedEvent. 3242 if (mLastWasImTarget) { 3243 InputMethodManager imm = InputMethodManager.peekInstance(); 3244 if (imm != null) { 3245 final int seq = event.getSequenceNumber(); 3246 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3247 + seq + " event=" + event); 3248 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3249 return; 3250 } 3251 } 3252 } 3253 3254 // Not dispatching to IME, continue with post IME actions. 3255 deliverKeyEventPostIme(q); 3256 } 3257 3258 void handleImeFinishedEvent(int seq, boolean handled) { 3259 final QueuedInputEvent q = mCurrentInputEvent; 3260 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3261 final KeyEvent event = (KeyEvent)q.mEvent; 3262 if (DEBUG_IMF) { 3263 Log.v(TAG, "IME finished event: seq=" + seq 3264 + " handled=" + handled + " event=" + event); 3265 } 3266 if (handled) { 3267 finishInputEvent(q, true); 3268 } else { 3269 deliverKeyEventPostIme(q); 3270 } 3271 } else { 3272 if (DEBUG_IMF) { 3273 Log.v(TAG, "IME finished event: seq=" + seq 3274 + " handled=" + handled + ", event not found!"); 3275 } 3276 } 3277 } 3278 3279 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3280 final KeyEvent event = (KeyEvent)q.mEvent; 3281 if (ViewDebug.DEBUG_LATENCY) { 3282 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3283 } 3284 3285 // If the view went away, then the event will not be handled. 3286 if (mView == null || !mAdded) { 3287 finishInputEvent(q, false); 3288 return; 3289 } 3290 3291 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3292 if (checkForLeavingTouchModeAndConsume(event)) { 3293 finishInputEvent(q, true); 3294 return; 3295 } 3296 3297 // Make sure the fallback event policy sees all keys that will be delivered to the 3298 // view hierarchy. 3299 mFallbackEventHandler.preDispatchKeyEvent(event); 3300 3301 // Deliver the key to the view hierarchy. 3302 if (mView.dispatchKeyEvent(event)) { 3303 finishInputEvent(q, true); 3304 return; 3305 } 3306 3307 // If the Control modifier is held, try to interpret the key as a shortcut. 3308 if (event.getAction() == KeyEvent.ACTION_DOWN 3309 && event.isCtrlPressed() 3310 && event.getRepeatCount() == 0 3311 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3312 if (mView.dispatchKeyShortcutEvent(event)) { 3313 finishInputEvent(q, true); 3314 return; 3315 } 3316 } 3317 3318 // Apply the fallback event policy. 3319 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3320 finishInputEvent(q, true); 3321 return; 3322 } 3323 3324 // Handle automatic focus changes. 3325 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3326 int direction = 0; 3327 switch (event.getKeyCode()) { 3328 case KeyEvent.KEYCODE_DPAD_LEFT: 3329 if (event.hasNoModifiers()) { 3330 direction = View.FOCUS_LEFT; 3331 } 3332 break; 3333 case KeyEvent.KEYCODE_DPAD_RIGHT: 3334 if (event.hasNoModifiers()) { 3335 direction = View.FOCUS_RIGHT; 3336 } 3337 break; 3338 case KeyEvent.KEYCODE_DPAD_UP: 3339 if (event.hasNoModifiers()) { 3340 direction = View.FOCUS_UP; 3341 } 3342 break; 3343 case KeyEvent.KEYCODE_DPAD_DOWN: 3344 if (event.hasNoModifiers()) { 3345 direction = View.FOCUS_DOWN; 3346 } 3347 break; 3348 case KeyEvent.KEYCODE_TAB: 3349 if (event.hasNoModifiers()) { 3350 direction = View.FOCUS_FORWARD; 3351 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3352 direction = View.FOCUS_BACKWARD; 3353 } 3354 break; 3355 } 3356 3357 if (direction != 0) { 3358 View focused = mView != null ? mView.findFocus() : null; 3359 if (focused != null) { 3360 View v = focused.focusSearch(direction); 3361 if (v != null && v != focused) { 3362 // do the math the get the interesting rect 3363 // of previous focused into the coord system of 3364 // newly focused view 3365 focused.getFocusedRect(mTempRect); 3366 if (mView instanceof ViewGroup) { 3367 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3368 focused, mTempRect); 3369 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3370 v, mTempRect); 3371 } 3372 if (v.requestFocus(direction, mTempRect)) { 3373 playSoundEffect( 3374 SoundEffectConstants.getContantForFocusDirection(direction)); 3375 finishInputEvent(q, true); 3376 return; 3377 } 3378 } 3379 3380 // Give the focused view a last chance to handle the dpad key. 3381 if (mView.dispatchUnhandledMove(focused, direction)) { 3382 finishInputEvent(q, true); 3383 return; 3384 } 3385 } 3386 } 3387 } 3388 3389 // Key was unhandled. 3390 finishInputEvent(q, false); 3391 } 3392 3393 /* drag/drop */ 3394 void setLocalDragState(Object obj) { 3395 mLocalDragState = obj; 3396 } 3397 3398 private void handleDragEvent(DragEvent event) { 3399 // From the root, only drag start/end/location are dispatched. entered/exited 3400 // are determined and dispatched by the viewgroup hierarchy, who then report 3401 // that back here for ultimate reporting back to the framework. 3402 if (mView != null && mAdded) { 3403 final int what = event.mAction; 3404 3405 if (what == DragEvent.ACTION_DRAG_EXITED) { 3406 // A direct EXITED event means that the window manager knows we've just crossed 3407 // a window boundary, so the current drag target within this one must have 3408 // just been exited. Send it the usual notifications and then we're done 3409 // for now. 3410 mView.dispatchDragEvent(event); 3411 } else { 3412 // Cache the drag description when the operation starts, then fill it in 3413 // on subsequent calls as a convenience 3414 if (what == DragEvent.ACTION_DRAG_STARTED) { 3415 mCurrentDragView = null; // Start the current-recipient tracking 3416 mDragDescription = event.mClipDescription; 3417 } else { 3418 event.mClipDescription = mDragDescription; 3419 } 3420 3421 // For events with a [screen] location, translate into window coordinates 3422 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3423 mDragPoint.set(event.mX, event.mY); 3424 if (mTranslator != null) { 3425 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3426 } 3427 3428 if (mCurScrollY != 0) { 3429 mDragPoint.offset(0, mCurScrollY); 3430 } 3431 3432 event.mX = mDragPoint.x; 3433 event.mY = mDragPoint.y; 3434 } 3435 3436 // Remember who the current drag target is pre-dispatch 3437 final View prevDragView = mCurrentDragView; 3438 3439 // Now dispatch the drag/drop event 3440 boolean result = mView.dispatchDragEvent(event); 3441 3442 // If we changed apparent drag target, tell the OS about it 3443 if (prevDragView != mCurrentDragView) { 3444 try { 3445 if (prevDragView != null) { 3446 sWindowSession.dragRecipientExited(mWindow); 3447 } 3448 if (mCurrentDragView != null) { 3449 sWindowSession.dragRecipientEntered(mWindow); 3450 } 3451 } catch (RemoteException e) { 3452 Slog.e(TAG, "Unable to note drag target change"); 3453 } 3454 } 3455 3456 // Report the drop result when we're done 3457 if (what == DragEvent.ACTION_DROP) { 3458 mDragDescription = null; 3459 try { 3460 Log.i(TAG, "Reporting drop result: " + result); 3461 sWindowSession.reportDropResult(mWindow, result); 3462 } catch (RemoteException e) { 3463 Log.e(TAG, "Unable to report drop result"); 3464 } 3465 } 3466 3467 // When the drag operation ends, release any local state object 3468 // that may have been in use 3469 if (what == DragEvent.ACTION_DRAG_ENDED) { 3470 setLocalDragState(null); 3471 } 3472 } 3473 } 3474 event.recycle(); 3475 } 3476 3477 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3478 if (mSeq != args.seq) { 3479 // The sequence has changed, so we need to update our value and make 3480 // sure to do a traversal afterward so the window manager is given our 3481 // most recent data. 3482 mSeq = args.seq; 3483 mAttachInfo.mForceReportNewAttributes = true; 3484 scheduleTraversals(); 3485 } 3486 if (mView == null) return; 3487 if (args.localChanges != 0) { 3488 if (mAttachInfo != null) { 3489 mAttachInfo.mSystemUiVisibility = 3490 (mAttachInfo.mSystemUiVisibility & ~args.localChanges) | 3491 (args.localValue & args.localChanges); 3492 mAttachInfo.mRecomputeGlobalAttributes = true; 3493 } 3494 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3495 scheduleTraversals(); 3496 } 3497 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3498 } 3499 3500 public void getLastTouchPoint(Point outLocation) { 3501 outLocation.x = (int) mLastTouchPoint.x; 3502 outLocation.y = (int) mLastTouchPoint.y; 3503 } 3504 3505 public void setDragFocus(View newDragTarget) { 3506 if (mCurrentDragView != newDragTarget) { 3507 mCurrentDragView = newDragTarget; 3508 } 3509 } 3510 3511 private AudioManager getAudioManager() { 3512 if (mView == null) { 3513 throw new IllegalStateException("getAudioManager called when there is no mView"); 3514 } 3515 if (mAudioManager == null) { 3516 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3517 } 3518 return mAudioManager; 3519 } 3520 3521 public AccessibilityInteractionController getAccessibilityInteractionController() { 3522 if (mView == null) { 3523 throw new IllegalStateException("getAccessibilityInteractionController" 3524 + " called when there is no mView"); 3525 } 3526 if (mAccessibilityInteractionController == null) { 3527 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3528 } 3529 return mAccessibilityInteractionController; 3530 } 3531 3532 public AccessibilityPrefetchStrategy getAccessibilityPrefetchStrategy() { 3533 if (mView == null) { 3534 throw new IllegalStateException("getAccessibilityPrefetchStrategy" 3535 + " called when there is no mView"); 3536 } 3537 if (mAccessibilityPrefetchStrategy == null) { 3538 mAccessibilityPrefetchStrategy = new AccessibilityPrefetchStrategy(); 3539 } 3540 return mAccessibilityPrefetchStrategy; 3541 } 3542 3543 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3544 boolean insetsPending) throws RemoteException { 3545 3546 float appScale = mAttachInfo.mApplicationScale; 3547 boolean restore = false; 3548 if (params != null && mTranslator != null) { 3549 restore = true; 3550 params.backup(); 3551 mTranslator.translateWindowLayout(params); 3552 } 3553 if (params != null) { 3554 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3555 } 3556 mPendingConfiguration.seq = 0; 3557 //Log.d(TAG, ">>>>>> CALLING relayout"); 3558 if (params != null && mOrigWindowType != params.type) { 3559 // For compatibility with old apps, don't crash here. 3560 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3561 Slog.w(TAG, "Window type can not be changed after " 3562 + "the window is added; ignoring change of " + mView); 3563 params.type = mOrigWindowType; 3564 } 3565 } 3566 int relayoutResult = sWindowSession.relayout( 3567 mWindow, mSeq, params, 3568 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3569 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3570 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3571 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3572 mPendingConfiguration, mSurface); 3573 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3574 if (restore) { 3575 params.restore(); 3576 } 3577 3578 if (mTranslator != null) { 3579 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3580 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3581 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3582 } 3583 return relayoutResult; 3584 } 3585 3586 /** 3587 * {@inheritDoc} 3588 */ 3589 public void playSoundEffect(int effectId) { 3590 checkThread(); 3591 3592 try { 3593 final AudioManager audioManager = getAudioManager(); 3594 3595 switch (effectId) { 3596 case SoundEffectConstants.CLICK: 3597 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3598 return; 3599 case SoundEffectConstants.NAVIGATION_DOWN: 3600 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3601 return; 3602 case SoundEffectConstants.NAVIGATION_LEFT: 3603 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3604 return; 3605 case SoundEffectConstants.NAVIGATION_RIGHT: 3606 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3607 return; 3608 case SoundEffectConstants.NAVIGATION_UP: 3609 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3610 return; 3611 default: 3612 throw new IllegalArgumentException("unknown effect id " + effectId + 3613 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3614 } 3615 } catch (IllegalStateException e) { 3616 // Exception thrown by getAudioManager() when mView is null 3617 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3618 e.printStackTrace(); 3619 } 3620 } 3621 3622 /** 3623 * {@inheritDoc} 3624 */ 3625 public boolean performHapticFeedback(int effectId, boolean always) { 3626 try { 3627 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3628 } catch (RemoteException e) { 3629 return false; 3630 } 3631 } 3632 3633 /** 3634 * {@inheritDoc} 3635 */ 3636 public View focusSearch(View focused, int direction) { 3637 checkThread(); 3638 if (!(mView instanceof ViewGroup)) { 3639 return null; 3640 } 3641 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3642 } 3643 3644 public void debug() { 3645 mView.debug(); 3646 } 3647 3648 public void dumpGfxInfo(int[] info) { 3649 if (mView != null) { 3650 getGfxInfo(mView, info); 3651 } else { 3652 info[0] = info[1] = 0; 3653 } 3654 } 3655 3656 private void getGfxInfo(View view, int[] info) { 3657 DisplayList displayList = view.mDisplayList; 3658 info[0]++; 3659 if (displayList != null) { 3660 info[1] += displayList.getSize(); 3661 } 3662 3663 if (view instanceof ViewGroup) { 3664 ViewGroup group = (ViewGroup) view; 3665 3666 int count = group.getChildCount(); 3667 for (int i = 0; i < count; i++) { 3668 getGfxInfo(group.getChildAt(i), info); 3669 } 3670 } 3671 } 3672 3673 public void die(boolean immediate) { 3674 if (immediate) { 3675 doDie(); 3676 } else { 3677 sendEmptyMessage(DIE); 3678 } 3679 } 3680 3681 void doDie() { 3682 checkThread(); 3683 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3684 synchronized (this) { 3685 if (mAdded) { 3686 mAdded = false; 3687 dispatchDetachedFromWindow(); 3688 } 3689 3690 if (mAdded && !mFirst) { 3691 destroyHardwareRenderer(); 3692 3693 int viewVisibility = mView.getVisibility(); 3694 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3695 if (mWindowAttributesChanged || viewVisibilityChanged) { 3696 // If layout params have been changed, first give them 3697 // to the window manager to make sure it has the correct 3698 // animation info. 3699 try { 3700 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3701 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3702 sWindowSession.finishDrawing(mWindow); 3703 } 3704 } catch (RemoteException e) { 3705 } 3706 } 3707 3708 mSurface.release(); 3709 } 3710 } 3711 } 3712 3713 public void requestUpdateConfiguration(Configuration config) { 3714 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3715 sendMessage(msg); 3716 } 3717 3718 private void destroyHardwareRenderer() { 3719 if (mAttachInfo.mHardwareRenderer != null) { 3720 mAttachInfo.mHardwareRenderer.destroy(true); 3721 mAttachInfo.mHardwareRenderer = null; 3722 mAttachInfo.mHardwareAccelerated = false; 3723 } 3724 } 3725 3726 void dispatchImeFinishedEvent(int seq, boolean handled) { 3727 Message msg = obtainMessage(IME_FINISHED_EVENT); 3728 msg.arg1 = seq; 3729 msg.arg2 = handled ? 1 : 0; 3730 sendMessage(msg); 3731 } 3732 3733 public void dispatchResized(int w, int h, Rect coveredInsets, 3734 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3735 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3736 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3737 + " visibleInsets=" + visibleInsets.toShortString() 3738 + " reportDraw=" + reportDraw); 3739 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3740 if (mTranslator != null) { 3741 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3742 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3743 w *= mTranslator.applicationInvertedScale; 3744 h *= mTranslator.applicationInvertedScale; 3745 } 3746 msg.arg1 = w; 3747 msg.arg2 = h; 3748 ResizedInfo ri = new ResizedInfo(); 3749 ri.coveredInsets = new Rect(coveredInsets); 3750 ri.visibleInsets = new Rect(visibleInsets); 3751 ri.newConfig = newConfig; 3752 msg.obj = ri; 3753 sendMessage(msg); 3754 } 3755 3756 /** 3757 * Represents a pending input event that is waiting in a queue. 3758 * 3759 * Input events are processed in serial order by the timestamp specified by 3760 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 3761 * one input event to the application at a time and waits for the application 3762 * to finish handling it before delivering the next one. 3763 * 3764 * However, because the application or IME can synthesize and inject multiple 3765 * key events at a time without going through the input dispatcher, we end up 3766 * needing a queue on the application's side. 3767 */ 3768 private static final class QueuedInputEvent { 3769 public static final int FLAG_DELIVER_POST_IME = 1; 3770 3771 public QueuedInputEvent mNext; 3772 3773 public InputEvent mEvent; 3774 public InputEventReceiver mReceiver; 3775 public int mFlags; 3776 3777 // Used for latency calculations. 3778 public long mReceiveTimeNanos; 3779 public long mDeliverTimeNanos; 3780 public long mDeliverPostImeTimeNanos; 3781 } 3782 3783 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3784 InputEventReceiver receiver, int flags) { 3785 QueuedInputEvent q = mQueuedInputEventPool; 3786 if (q != null) { 3787 mQueuedInputEventPoolSize -= 1; 3788 mQueuedInputEventPool = q.mNext; 3789 q.mNext = null; 3790 } else { 3791 q = new QueuedInputEvent(); 3792 } 3793 3794 q.mEvent = event; 3795 q.mReceiver = receiver; 3796 q.mFlags = flags; 3797 return q; 3798 } 3799 3800 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3801 q.mEvent = null; 3802 q.mReceiver = null; 3803 3804 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3805 mQueuedInputEventPoolSize += 1; 3806 q.mNext = mQueuedInputEventPool; 3807 mQueuedInputEventPool = q; 3808 } 3809 } 3810 3811 void enqueueInputEvent(InputEvent event) { 3812 enqueueInputEvent(event, null, 0, false); 3813 } 3814 3815 void enqueueInputEvent(InputEvent event, 3816 InputEventReceiver receiver, int flags, boolean processImmediately) { 3817 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3818 3819 if (ViewDebug.DEBUG_LATENCY) { 3820 q.mReceiveTimeNanos = System.nanoTime(); 3821 q.mDeliverTimeNanos = 0; 3822 q.mDeliverPostImeTimeNanos = 0; 3823 } 3824 3825 // Always enqueue the input event in order, regardless of its time stamp. 3826 // We do this because the application or the IME may inject key events 3827 // in response to touch events and we want to ensure that the injected keys 3828 // are processed in the order they were received and we cannot trust that 3829 // the time stamp of injected events are monotonic. 3830 QueuedInputEvent last = mFirstPendingInputEvent; 3831 if (last == null) { 3832 mFirstPendingInputEvent = q; 3833 } else { 3834 while (last.mNext != null) { 3835 last = last.mNext; 3836 } 3837 last.mNext = q; 3838 } 3839 3840 if (processImmediately) { 3841 doProcessInputEvents(); 3842 } else { 3843 scheduleProcessInputEvents(); 3844 } 3845 } 3846 3847 private void scheduleProcessInputEvents() { 3848 if (!mProcessInputEventsScheduled) { 3849 mProcessInputEventsScheduled = true; 3850 sendEmptyMessage(DO_PROCESS_INPUT_EVENTS); 3851 } 3852 } 3853 3854 private void doProcessInputEvents() { 3855 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3856 QueuedInputEvent q = mFirstPendingInputEvent; 3857 mFirstPendingInputEvent = q.mNext; 3858 q.mNext = null; 3859 mCurrentInputEvent = q; 3860 deliverInputEvent(q); 3861 } 3862 3863 // We are done processing all input events that we can process right now 3864 // so we can clear the pending flag immediately. 3865 if (mProcessInputEventsScheduled) { 3866 mProcessInputEventsScheduled = false; 3867 removeMessages(DO_PROCESS_INPUT_EVENTS); 3868 } 3869 } 3870 3871 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3872 if (q != mCurrentInputEvent) { 3873 throw new IllegalStateException("finished input event out of order"); 3874 } 3875 3876 if (ViewDebug.DEBUG_LATENCY) { 3877 final long now = System.nanoTime(); 3878 final long eventTime = q.mEvent.getEventTimeNano(); 3879 final StringBuilder msg = new StringBuilder(); 3880 msg.append("Spent "); 3881 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3882 msg.append("ms processing "); 3883 if (q.mEvent instanceof KeyEvent) { 3884 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3885 msg.append("key event, action="); 3886 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3887 } else { 3888 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3889 msg.append("motion event, action="); 3890 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3891 msg.append(", historySize="); 3892 msg.append(motionEvent.getHistorySize()); 3893 } 3894 msg.append(", handled="); 3895 msg.append(handled); 3896 msg.append(", received at +"); 3897 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3898 if (q.mDeliverTimeNanos != 0) { 3899 msg.append("ms, delivered at +"); 3900 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3901 } 3902 if (q.mDeliverPostImeTimeNanos != 0) { 3903 msg.append("ms, delivered post IME at +"); 3904 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3905 } 3906 msg.append("ms, finished at +"); 3907 msg.append((now - eventTime) * 0.000001f); 3908 msg.append("ms."); 3909 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3910 } 3911 3912 if (q.mReceiver != null) { 3913 q.mReceiver.finishInputEvent(q.mEvent, handled); 3914 } else { 3915 q.mEvent.recycleIfNeededAfterDispatch(); 3916 } 3917 3918 recycleQueuedInputEvent(q); 3919 3920 mCurrentInputEvent = null; 3921 if (mFirstPendingInputEvent != null) { 3922 scheduleProcessInputEvents(); 3923 } 3924 } 3925 3926 final class WindowInputEventReceiver extends InputEventReceiver { 3927 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3928 super(inputChannel, looper); 3929 } 3930 3931 @Override 3932 public void onInputEvent(InputEvent event) { 3933 enqueueInputEvent(event, this, 0, true); 3934 } 3935 3936 @Override 3937 public void onBatchedInputEventPending() { 3938 mChoreographer.scheduleDraw(); 3939 } 3940 } 3941 WindowInputEventReceiver mInputEventReceiver; 3942 3943 public void dispatchKey(KeyEvent event) { 3944 Message msg = obtainMessage(DISPATCH_KEY, event); 3945 sendMessage(msg); 3946 } 3947 3948 public void dispatchAppVisibility(boolean visible) { 3949 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3950 msg.arg1 = visible ? 1 : 0; 3951 sendMessage(msg); 3952 } 3953 3954 public void dispatchGetNewSurface() { 3955 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3956 sendMessage(msg); 3957 } 3958 3959 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3960 Message msg = Message.obtain(); 3961 msg.what = WINDOW_FOCUS_CHANGED; 3962 msg.arg1 = hasFocus ? 1 : 0; 3963 msg.arg2 = inTouchMode ? 1 : 0; 3964 sendMessage(msg); 3965 } 3966 3967 public void dispatchCloseSystemDialogs(String reason) { 3968 Message msg = Message.obtain(); 3969 msg.what = CLOSE_SYSTEM_DIALOGS; 3970 msg.obj = reason; 3971 sendMessage(msg); 3972 } 3973 3974 public void dispatchDragEvent(DragEvent event) { 3975 final int what; 3976 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3977 what = DISPATCH_DRAG_LOCATION_EVENT; 3978 removeMessages(what); 3979 } else { 3980 what = DISPATCH_DRAG_EVENT; 3981 } 3982 Message msg = obtainMessage(what, event); 3983 sendMessage(msg); 3984 } 3985 3986 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3987 int localValue, int localChanges) { 3988 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3989 args.seq = seq; 3990 args.globalVisibility = globalVisibility; 3991 args.localValue = localValue; 3992 args.localChanges = localChanges; 3993 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3994 } 3995 3996 /** 3997 * The window is getting focus so if there is anything focused/selected 3998 * send an {@link AccessibilityEvent} to announce that. 3999 */ 4000 private void sendAccessibilityEvents() { 4001 if (!mAccessibilityManager.isEnabled()) { 4002 return; 4003 } 4004 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 4005 View focusedView = mView.findFocus(); 4006 if (focusedView != null && focusedView != mView) { 4007 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 4008 } 4009 } 4010 4011 /** 4012 * Post a callback to send a 4013 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4014 * This event is send at most once every 4015 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4016 */ 4017 private void postSendWindowContentChangedCallback() { 4018 if (mSendWindowContentChangedAccessibilityEvent == null) { 4019 mSendWindowContentChangedAccessibilityEvent = 4020 new SendWindowContentChangedAccessibilityEvent(); 4021 } 4022 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 4023 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 4024 postDelayed(mSendWindowContentChangedAccessibilityEvent, 4025 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4026 } 4027 } 4028 4029 /** 4030 * Remove a posted callback to send a 4031 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4032 */ 4033 private void removeSendWindowContentChangedCallback() { 4034 if (mSendWindowContentChangedAccessibilityEvent != null) { 4035 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4036 } 4037 } 4038 4039 public boolean showContextMenuForChild(View originalView) { 4040 return false; 4041 } 4042 4043 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4044 return null; 4045 } 4046 4047 public void createContextMenu(ContextMenu menu) { 4048 } 4049 4050 public void childDrawableStateChanged(View child) { 4051 } 4052 4053 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4054 if (mView == null) { 4055 return false; 4056 } 4057 getAccessibilityPrefetchStrategy().onAccessibilityEvent(event); 4058 mAccessibilityManager.sendAccessibilityEvent(event); 4059 return true; 4060 } 4061 4062 void checkThread() { 4063 if (mThread != Thread.currentThread()) { 4064 throw new CalledFromWrongThreadException( 4065 "Only the original thread that created a view hierarchy can touch its views."); 4066 } 4067 } 4068 4069 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4070 // ViewAncestor never intercepts touch event, so this can be a no-op 4071 } 4072 4073 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4074 boolean immediate) { 4075 return scrollToRectOrFocus(rectangle, immediate); 4076 } 4077 4078 class TakenSurfaceHolder extends BaseSurfaceHolder { 4079 @Override 4080 public boolean onAllowLockCanvas() { 4081 return mDrawingAllowed; 4082 } 4083 4084 @Override 4085 public void onRelayoutContainer() { 4086 // Not currently interesting -- from changing between fixed and layout size. 4087 } 4088 4089 public void setFormat(int format) { 4090 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4091 } 4092 4093 public void setType(int type) { 4094 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4095 } 4096 4097 @Override 4098 public void onUpdateSurface() { 4099 // We take care of format and type changes on our own. 4100 throw new IllegalStateException("Shouldn't be here"); 4101 } 4102 4103 public boolean isCreating() { 4104 return mIsCreating; 4105 } 4106 4107 @Override 4108 public void setFixedSize(int width, int height) { 4109 throw new UnsupportedOperationException( 4110 "Currently only support sizing from layout"); 4111 } 4112 4113 public void setKeepScreenOn(boolean screenOn) { 4114 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4115 } 4116 } 4117 4118 static class InputMethodCallback extends IInputMethodCallback.Stub { 4119 private WeakReference<ViewRootImpl> mViewAncestor; 4120 4121 public InputMethodCallback(ViewRootImpl viewAncestor) { 4122 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4123 } 4124 4125 public void finishedEvent(int seq, boolean handled) { 4126 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4127 if (viewAncestor != null) { 4128 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4129 } 4130 } 4131 4132 public void sessionCreated(IInputMethodSession session) { 4133 // Stub -- not for use in the client. 4134 } 4135 } 4136 4137 static class W extends IWindow.Stub { 4138 private final WeakReference<ViewRootImpl> mViewAncestor; 4139 4140 W(ViewRootImpl viewAncestor) { 4141 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4142 } 4143 4144 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4145 boolean reportDraw, Configuration newConfig) { 4146 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4147 if (viewAncestor != null) { 4148 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4149 newConfig); 4150 } 4151 } 4152 4153 public void dispatchAppVisibility(boolean visible) { 4154 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4155 if (viewAncestor != null) { 4156 viewAncestor.dispatchAppVisibility(visible); 4157 } 4158 } 4159 4160 public void dispatchGetNewSurface() { 4161 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4162 if (viewAncestor != null) { 4163 viewAncestor.dispatchGetNewSurface(); 4164 } 4165 } 4166 4167 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4168 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4169 if (viewAncestor != null) { 4170 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4171 } 4172 } 4173 4174 private static int checkCallingPermission(String permission) { 4175 try { 4176 return ActivityManagerNative.getDefault().checkPermission( 4177 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4178 } catch (RemoteException e) { 4179 return PackageManager.PERMISSION_DENIED; 4180 } 4181 } 4182 4183 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4184 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4185 if (viewAncestor != null) { 4186 final View view = viewAncestor.mView; 4187 if (view != null) { 4188 if (checkCallingPermission(Manifest.permission.DUMP) != 4189 PackageManager.PERMISSION_GRANTED) { 4190 throw new SecurityException("Insufficient permissions to invoke" 4191 + " executeCommand() from pid=" + Binder.getCallingPid() 4192 + ", uid=" + Binder.getCallingUid()); 4193 } 4194 4195 OutputStream clientStream = null; 4196 try { 4197 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4198 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4199 } catch (IOException e) { 4200 e.printStackTrace(); 4201 } finally { 4202 if (clientStream != null) { 4203 try { 4204 clientStream.close(); 4205 } catch (IOException e) { 4206 e.printStackTrace(); 4207 } 4208 } 4209 } 4210 } 4211 } 4212 } 4213 4214 public void closeSystemDialogs(String reason) { 4215 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4216 if (viewAncestor != null) { 4217 viewAncestor.dispatchCloseSystemDialogs(reason); 4218 } 4219 } 4220 4221 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4222 boolean sync) { 4223 if (sync) { 4224 try { 4225 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4226 } catch (RemoteException e) { 4227 } 4228 } 4229 } 4230 4231 public void dispatchWallpaperCommand(String action, int x, int y, 4232 int z, Bundle extras, boolean sync) { 4233 if (sync) { 4234 try { 4235 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4236 } catch (RemoteException e) { 4237 } 4238 } 4239 } 4240 4241 /* Drag/drop */ 4242 public void dispatchDragEvent(DragEvent event) { 4243 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4244 if (viewAncestor != null) { 4245 viewAncestor.dispatchDragEvent(event); 4246 } 4247 } 4248 4249 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4250 int localValue, int localChanges) { 4251 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4252 if (viewAncestor != null) { 4253 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4254 localValue, localChanges); 4255 } 4256 } 4257 } 4258 4259 /** 4260 * Maintains state information for a single trackball axis, generating 4261 * discrete (DPAD) movements based on raw trackball motion. 4262 */ 4263 static final class TrackballAxis { 4264 /** 4265 * The maximum amount of acceleration we will apply. 4266 */ 4267 static final float MAX_ACCELERATION = 20; 4268 4269 /** 4270 * The maximum amount of time (in milliseconds) between events in order 4271 * for us to consider the user to be doing fast trackball movements, 4272 * and thus apply an acceleration. 4273 */ 4274 static final long FAST_MOVE_TIME = 150; 4275 4276 /** 4277 * Scaling factor to the time (in milliseconds) between events to how 4278 * much to multiple/divide the current acceleration. When movement 4279 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4280 * FAST_MOVE_TIME it divides it. 4281 */ 4282 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4283 4284 float position; 4285 float absPosition; 4286 float acceleration = 1; 4287 long lastMoveTime = 0; 4288 int step; 4289 int dir; 4290 int nonAccelMovement; 4291 4292 void reset(int _step) { 4293 position = 0; 4294 acceleration = 1; 4295 lastMoveTime = 0; 4296 step = _step; 4297 dir = 0; 4298 } 4299 4300 /** 4301 * Add trackball movement into the state. If the direction of movement 4302 * has been reversed, the state is reset before adding the 4303 * movement (so that you don't have to compensate for any previously 4304 * collected movement before see the result of the movement in the 4305 * new direction). 4306 * 4307 * @return Returns the absolute value of the amount of movement 4308 * collected so far. 4309 */ 4310 float collect(float off, long time, String axis) { 4311 long normTime; 4312 if (off > 0) { 4313 normTime = (long)(off * FAST_MOVE_TIME); 4314 if (dir < 0) { 4315 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4316 position = 0; 4317 step = 0; 4318 acceleration = 1; 4319 lastMoveTime = 0; 4320 } 4321 dir = 1; 4322 } else if (off < 0) { 4323 normTime = (long)((-off) * FAST_MOVE_TIME); 4324 if (dir > 0) { 4325 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4326 position = 0; 4327 step = 0; 4328 acceleration = 1; 4329 lastMoveTime = 0; 4330 } 4331 dir = -1; 4332 } else { 4333 normTime = 0; 4334 } 4335 4336 // The number of milliseconds between each movement that is 4337 // considered "normal" and will not result in any acceleration 4338 // or deceleration, scaled by the offset we have here. 4339 if (normTime > 0) { 4340 long delta = time - lastMoveTime; 4341 lastMoveTime = time; 4342 float acc = acceleration; 4343 if (delta < normTime) { 4344 // The user is scrolling rapidly, so increase acceleration. 4345 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4346 if (scale > 1) acc *= scale; 4347 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4348 + off + " normTime=" + normTime + " delta=" + delta 4349 + " scale=" + scale + " acc=" + acc); 4350 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4351 } else { 4352 // The user is scrolling slowly, so decrease acceleration. 4353 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4354 if (scale > 1) acc /= scale; 4355 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4356 + off + " normTime=" + normTime + " delta=" + delta 4357 + " scale=" + scale + " acc=" + acc); 4358 acceleration = acc > 1 ? acc : 1; 4359 } 4360 } 4361 position += off; 4362 return (absPosition = Math.abs(position)); 4363 } 4364 4365 /** 4366 * Generate the number of discrete movement events appropriate for 4367 * the currently collected trackball movement. 4368 * 4369 * @param precision The minimum movement required to generate the 4370 * first discrete movement. 4371 * 4372 * @return Returns the number of discrete movements, either positive 4373 * or negative, or 0 if there is not enough trackball movement yet 4374 * for a discrete movement. 4375 */ 4376 int generate(float precision) { 4377 int movement = 0; 4378 nonAccelMovement = 0; 4379 do { 4380 final int dir = position >= 0 ? 1 : -1; 4381 switch (step) { 4382 // If we are going to execute the first step, then we want 4383 // to do this as soon as possible instead of waiting for 4384 // a full movement, in order to make things look responsive. 4385 case 0: 4386 if (absPosition < precision) { 4387 return movement; 4388 } 4389 movement += dir; 4390 nonAccelMovement += dir; 4391 step = 1; 4392 break; 4393 // If we have generated the first movement, then we need 4394 // to wait for the second complete trackball motion before 4395 // generating the second discrete movement. 4396 case 1: 4397 if (absPosition < 2) { 4398 return movement; 4399 } 4400 movement += dir; 4401 nonAccelMovement += dir; 4402 position += dir > 0 ? -2 : 2; 4403 absPosition = Math.abs(position); 4404 step = 2; 4405 break; 4406 // After the first two, we generate discrete movements 4407 // consistently with the trackball, applying an acceleration 4408 // if the trackball is moving quickly. This is a simple 4409 // acceleration on top of what we already compute based 4410 // on how quickly the wheel is being turned, to apply 4411 // a longer increasing acceleration to continuous movement 4412 // in one direction. 4413 default: 4414 if (absPosition < 1) { 4415 return movement; 4416 } 4417 movement += dir; 4418 position += dir >= 0 ? -1 : 1; 4419 absPosition = Math.abs(position); 4420 float acc = acceleration; 4421 acc *= 1.1f; 4422 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4423 break; 4424 } 4425 } while (true); 4426 } 4427 } 4428 4429 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4430 public CalledFromWrongThreadException(String msg) { 4431 super(msg); 4432 } 4433 } 4434 4435 private SurfaceHolder mHolder = new SurfaceHolder() { 4436 // we only need a SurfaceHolder for opengl. it would be nice 4437 // to implement everything else though, especially the callback 4438 // support (opengl doesn't make use of it right now, but eventually 4439 // will). 4440 public Surface getSurface() { 4441 return mSurface; 4442 } 4443 4444 public boolean isCreating() { 4445 return false; 4446 } 4447 4448 public void addCallback(Callback callback) { 4449 } 4450 4451 public void removeCallback(Callback callback) { 4452 } 4453 4454 public void setFixedSize(int width, int height) { 4455 } 4456 4457 public void setSizeFromLayout() { 4458 } 4459 4460 public void setFormat(int format) { 4461 } 4462 4463 public void setType(int type) { 4464 } 4465 4466 public void setKeepScreenOn(boolean screenOn) { 4467 } 4468 4469 public Canvas lockCanvas() { 4470 return null; 4471 } 4472 4473 public Canvas lockCanvas(Rect dirty) { 4474 return null; 4475 } 4476 4477 public void unlockCanvasAndPost(Canvas canvas) { 4478 } 4479 public Rect getSurfaceFrame() { 4480 return null; 4481 } 4482 }; 4483 4484 static RunQueue getRunQueue() { 4485 RunQueue rq = sRunQueues.get(); 4486 if (rq != null) { 4487 return rq; 4488 } 4489 rq = new RunQueue(); 4490 sRunQueues.set(rq); 4491 return rq; 4492 } 4493 4494 /** 4495 * @hide 4496 */ 4497 static final class RunQueue { 4498 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4499 4500 void post(Runnable action) { 4501 postDelayed(action, 0); 4502 } 4503 4504 void postDelayed(Runnable action, long delayMillis) { 4505 HandlerAction handlerAction = new HandlerAction(); 4506 handlerAction.action = action; 4507 handlerAction.delay = delayMillis; 4508 4509 synchronized (mActions) { 4510 mActions.add(handlerAction); 4511 } 4512 } 4513 4514 void removeCallbacks(Runnable action) { 4515 final HandlerAction handlerAction = new HandlerAction(); 4516 handlerAction.action = action; 4517 4518 synchronized (mActions) { 4519 final ArrayList<HandlerAction> actions = mActions; 4520 4521 while (actions.remove(handlerAction)) { 4522 // Keep going 4523 } 4524 } 4525 } 4526 4527 void executeActions(Handler handler) { 4528 synchronized (mActions) { 4529 final ArrayList<HandlerAction> actions = mActions; 4530 final int count = actions.size(); 4531 4532 for (int i = 0; i < count; i++) { 4533 final HandlerAction handlerAction = actions.get(i); 4534 handler.postDelayed(handlerAction.action, handlerAction.delay); 4535 } 4536 4537 actions.clear(); 4538 } 4539 } 4540 4541 private static class HandlerAction { 4542 Runnable action; 4543 long delay; 4544 4545 @Override 4546 public boolean equals(Object o) { 4547 if (this == o) return true; 4548 if (o == null || getClass() != o.getClass()) return false; 4549 4550 HandlerAction that = (HandlerAction) o; 4551 return !(action != null ? !action.equals(that.action) : that.action != null); 4552 4553 } 4554 4555 @Override 4556 public int hashCode() { 4557 int result = action != null ? action.hashCode() : 0; 4558 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4559 return result; 4560 } 4561 } 4562 } 4563 4564 /** 4565 * Class for managing the accessibility interaction connection 4566 * based on the global accessibility state. 4567 */ 4568 final class AccessibilityInteractionConnectionManager 4569 implements AccessibilityStateChangeListener { 4570 public void onAccessibilityStateChanged(boolean enabled) { 4571 if (enabled) { 4572 ensureConnection(); 4573 } else { 4574 ensureNoConnection(); 4575 } 4576 } 4577 4578 public void ensureConnection() { 4579 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4580 if (!registered) { 4581 mAttachInfo.mAccessibilityWindowId = 4582 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4583 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4584 } 4585 } 4586 4587 public void ensureNoConnection() { 4588 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4589 if (registered) { 4590 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4591 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4592 } 4593 } 4594 } 4595 4596 /** 4597 * This class is an interface this ViewAncestor provides to the 4598 * AccessibilityManagerService to the latter can interact with 4599 * the view hierarchy in this ViewAncestor. 4600 */ 4601 static final class AccessibilityInteractionConnection 4602 extends IAccessibilityInteractionConnection.Stub { 4603 private final WeakReference<ViewRootImpl> mViewRootImpl; 4604 4605 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4606 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4607 } 4608 4609 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4610 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4611 int interrogatingPid, long interrogatingTid) { 4612 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4613 if (viewRootImpl != null && viewRootImpl.mView != null) { 4614 viewRootImpl.getAccessibilityInteractionController() 4615 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4616 interactionId, callback, interrogatingPid, interrogatingTid); 4617 } else { 4618 // We cannot make the call and notify the caller so it does not wait. 4619 try { 4620 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4621 } catch (RemoteException re) { 4622 /* best effort - ignore */ 4623 } 4624 } 4625 } 4626 4627 public void performAccessibilityAction(long accessibilityNodeId, int action, 4628 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4629 int interogatingPid, long interrogatingTid) { 4630 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4631 if (viewRootImpl != null && viewRootImpl.mView != null) { 4632 viewRootImpl.getAccessibilityInteractionController() 4633 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4634 interactionId, callback, interogatingPid, interrogatingTid); 4635 } else { 4636 // We cannot make the call and notify the caller so it does not 4637 try { 4638 callback.setPerformAccessibilityActionResult(false, interactionId); 4639 } catch (RemoteException re) { 4640 /* best effort - ignore */ 4641 } 4642 } 4643 } 4644 4645 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 4646 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4647 int interrogatingPid, long interrogatingTid) { 4648 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4649 if (viewRootImpl != null && viewRootImpl.mView != null) { 4650 viewRootImpl.getAccessibilityInteractionController() 4651 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 4652 interactionId, callback, interrogatingPid, interrogatingTid); 4653 } else { 4654 // We cannot make the call and notify the caller so it does not 4655 try { 4656 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 4657 } catch (RemoteException re) { 4658 /* best effort - ignore */ 4659 } 4660 } 4661 } 4662 4663 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 4664 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4665 int interrogatingPid, long interrogatingTid) { 4666 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4667 if (viewRootImpl != null && viewRootImpl.mView != null) { 4668 viewRootImpl.getAccessibilityInteractionController() 4669 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 4670 interactionId, callback, interrogatingPid, interrogatingTid); 4671 } else { 4672 // We cannot make the call and notify the caller so it does not 4673 try { 4674 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4675 } catch (RemoteException re) { 4676 /* best effort - ignore */ 4677 } 4678 } 4679 } 4680 } 4681 4682 /** 4683 * Class for managing accessibility interactions initiated from the system 4684 * and targeting the view hierarchy. A *ClientThread method is to be 4685 * called from the interaction connection this ViewAncestor gives the 4686 * system to talk to it and a corresponding *UiThread method that is executed 4687 * on the UI thread. 4688 */ 4689 final class AccessibilityInteractionController { 4690 private static final int POOL_SIZE = 5; 4691 4692 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4693 new ArrayList<AccessibilityNodeInfo>(); 4694 4695 // Reusable poolable arguments for interacting with the view hierarchy 4696 // to fit more arguments than Message and to avoid sharing objects between 4697 // two messages since several threads can send messages concurrently. 4698 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4699 new PoolableManager<SomeArgs>() { 4700 public SomeArgs newInstance() { 4701 return new SomeArgs(); 4702 } 4703 4704 public void onAcquired(SomeArgs info) { 4705 /* do nothing */ 4706 } 4707 4708 public void onReleased(SomeArgs info) { 4709 info.clear(); 4710 } 4711 }, POOL_SIZE) 4712 ); 4713 4714 public class SomeArgs implements Poolable<SomeArgs> { 4715 private SomeArgs mNext; 4716 private boolean mIsPooled; 4717 4718 public Object arg1; 4719 public Object arg2; 4720 public int argi1; 4721 public int argi2; 4722 public int argi3; 4723 4724 public SomeArgs getNextPoolable() { 4725 return mNext; 4726 } 4727 4728 public boolean isPooled() { 4729 return mIsPooled; 4730 } 4731 4732 public void setNextPoolable(SomeArgs args) { 4733 mNext = args; 4734 } 4735 4736 public void setPooled(boolean isPooled) { 4737 mIsPooled = isPooled; 4738 } 4739 4740 private void clear() { 4741 arg1 = null; 4742 arg2 = null; 4743 argi1 = 0; 4744 argi2 = 0; 4745 argi3 = 0; 4746 } 4747 } 4748 4749 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4750 long accessibilityNodeId, int interactionId, 4751 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4752 long interrogatingTid) { 4753 Message message = Message.obtain(); 4754 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4755 message.arg1 = interrogatingPid; 4756 SomeArgs args = mPool.acquire(); 4757 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4758 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4759 args.argi3 = interactionId; 4760 args.arg1 = callback; 4761 message.obj = args; 4762 // If the interrogation is performed by the same thread as the main UI 4763 // thread in this process, set the message as a static reference so 4764 // after this call completes the same thread but in the interrogating 4765 // client can handle the message to generate the result. 4766 if (interrogatingPid == Process.myPid() 4767 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4768 message.setTarget(ViewRootImpl.this); 4769 AccessibilityInteractionClient.getInstanceForThread( 4770 interrogatingTid).setSameThreadMessage(message); 4771 } else { 4772 sendMessage(message); 4773 } 4774 } 4775 4776 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4777 SomeArgs args = (SomeArgs) message.obj; 4778 final int interrogatingPid = message.arg1; 4779 final int accessibilityViewId = args.argi1; 4780 final int virtualDescendantId = args.argi2; 4781 final int interactionId = args.argi3; 4782 final IAccessibilityInteractionConnectionCallback callback = 4783 (IAccessibilityInteractionConnectionCallback) args.arg1; 4784 mPool.release(args); 4785 List<AccessibilityNodeInfo> infos = mTempAccessibilityNodeInfoList; 4786 infos.clear(); 4787 try { 4788 View target = findViewByAccessibilityId(accessibilityViewId); 4789 if (target != null && target.getVisibility() == View.VISIBLE) { 4790 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4791 if (provider != null) { 4792 infos.add(provider.createAccessibilityNodeInfo(virtualDescendantId)); 4793 } else if (virtualDescendantId == View.NO_ID) { 4794 getAccessibilityPrefetchStrategy().prefetchAccessibilityNodeInfos( 4795 interrogatingPid, target, infos); 4796 } 4797 } 4798 } finally { 4799 try { 4800 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4801 infos.clear(); 4802 } catch (RemoteException re) { 4803 /* ignore - the other side will time out */ 4804 } 4805 } 4806 } 4807 4808 public void findAccessibilityNodeInfoByViewIdClientThread(long accessibilityNodeId, 4809 int viewId, int interactionId, IAccessibilityInteractionConnectionCallback callback, 4810 int interrogatingPid, long interrogatingTid) { 4811 Message message = Message.obtain(); 4812 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4813 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4814 SomeArgs args = mPool.acquire(); 4815 args.argi1 = viewId; 4816 args.argi2 = interactionId; 4817 args.arg1 = callback; 4818 message.obj = args; 4819 // If the interrogation is performed by the same thread as the main UI 4820 // thread in this process, set the message as a static reference so 4821 // after this call completes the same thread but in the interrogating 4822 // client can handle the message to generate the result. 4823 if (interrogatingPid == Process.myPid() 4824 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4825 message.setTarget(ViewRootImpl.this); 4826 AccessibilityInteractionClient.getInstanceForThread( 4827 interrogatingTid).setSameThreadMessage(message); 4828 } else { 4829 sendMessage(message); 4830 } 4831 } 4832 4833 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4834 final int accessibilityViewId = message.arg1; 4835 SomeArgs args = (SomeArgs) message.obj; 4836 final int viewId = args.argi1; 4837 final int interactionId = args.argi2; 4838 final IAccessibilityInteractionConnectionCallback callback = 4839 (IAccessibilityInteractionConnectionCallback) args.arg1; 4840 mPool.release(args); 4841 AccessibilityNodeInfo info = null; 4842 try { 4843 View root = null; 4844 if (accessibilityViewId != View.NO_ID) { 4845 root = findViewByAccessibilityId(accessibilityViewId); 4846 } else { 4847 root = ViewRootImpl.this.mView; 4848 } 4849 if (root != null) { 4850 View target = root.findViewById(viewId); 4851 if (target != null && target.getVisibility() == View.VISIBLE) { 4852 info = target.createAccessibilityNodeInfo(); 4853 } 4854 } 4855 } finally { 4856 try { 4857 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4858 } catch (RemoteException re) { 4859 /* ignore - the other side will time out */ 4860 } 4861 } 4862 } 4863 4864 public void findAccessibilityNodeInfosByTextClientThread(long accessibilityNodeId, 4865 String text, int interactionId, 4866 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4867 long interrogatingTid) { 4868 Message message = Message.obtain(); 4869 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4870 SomeArgs args = mPool.acquire(); 4871 args.arg1 = text; 4872 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4873 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4874 args.argi3 = interactionId; 4875 args.arg2 = callback; 4876 message.obj = args; 4877 // If the interrogation is performed by the same thread as the main UI 4878 // thread in this process, set the message as a static reference so 4879 // after this call completes the same thread but in the interrogating 4880 // client can handle the message to generate the result. 4881 if (interrogatingPid == Process.myPid() 4882 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4883 message.setTarget(ViewRootImpl.this); 4884 AccessibilityInteractionClient.getInstanceForThread( 4885 interrogatingTid).setSameThreadMessage(message); 4886 } else { 4887 sendMessage(message); 4888 } 4889 } 4890 4891 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4892 SomeArgs args = (SomeArgs) message.obj; 4893 final String text = (String) args.arg1; 4894 final int accessibilityViewId = args.argi1; 4895 final int virtualDescendantId = args.argi2; 4896 final int interactionId = args.argi3; 4897 final IAccessibilityInteractionConnectionCallback callback = 4898 (IAccessibilityInteractionConnectionCallback) args.arg2; 4899 mPool.release(args); 4900 List<AccessibilityNodeInfo> infos = null; 4901 try { 4902 View target; 4903 if (accessibilityViewId != View.NO_ID) { 4904 target = findViewByAccessibilityId(accessibilityViewId); 4905 } else { 4906 target = ViewRootImpl.this.mView; 4907 } 4908 if (target != null && target.getVisibility() == View.VISIBLE) { 4909 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4910 if (provider != null) { 4911 infos = provider.findAccessibilityNodeInfosByText(text, 4912 virtualDescendantId); 4913 } else if (virtualDescendantId == View.NO_ID) { 4914 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4915 foundViews.clear(); 4916 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4917 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4918 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4919 if (!foundViews.isEmpty()) { 4920 infos = mTempAccessibilityNodeInfoList; 4921 infos.clear(); 4922 final int viewCount = foundViews.size(); 4923 for (int i = 0; i < viewCount; i++) { 4924 View foundView = foundViews.get(i); 4925 if (foundView.getVisibility() == View.VISIBLE) { 4926 provider = foundView.getAccessibilityNodeProvider(); 4927 if (provider != null) { 4928 List<AccessibilityNodeInfo> infosFromProvider = 4929 provider.findAccessibilityNodeInfosByText(text, 4930 virtualDescendantId); 4931 if (infosFromProvider != null) { 4932 infos.addAll(infosFromProvider); 4933 } 4934 } else { 4935 infos.add(foundView.createAccessibilityNodeInfo()); 4936 } 4937 } 4938 } 4939 } 4940 } 4941 } 4942 } finally { 4943 try { 4944 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4945 } catch (RemoteException re) { 4946 /* ignore - the other side will time out */ 4947 } 4948 } 4949 } 4950 4951 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4952 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4953 int interogatingPid, long interrogatingTid) { 4954 Message message = Message.obtain(); 4955 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4956 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4957 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4958 SomeArgs args = mPool.acquire(); 4959 args.argi1 = action; 4960 args.argi2 = interactionId; 4961 args.arg1 = callback; 4962 message.obj = args; 4963 // If the interrogation is performed by the same thread as the main UI 4964 // thread in this process, set the message as a static reference so 4965 // after this call completes the same thread but in the interrogating 4966 // client can handle the message to generate the result. 4967 if (interogatingPid == Process.myPid() 4968 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4969 message.setTarget(ViewRootImpl.this); 4970 AccessibilityInteractionClient.getInstanceForThread( 4971 interrogatingTid).setSameThreadMessage(message); 4972 } else { 4973 sendMessage(message); 4974 } 4975 } 4976 4977 public void perfromAccessibilityActionUiThread(Message message) { 4978 final int accessibilityViewId = message.arg1; 4979 final int virtualDescendantId = message.arg2; 4980 SomeArgs args = (SomeArgs) message.obj; 4981 final int action = args.argi1; 4982 final int interactionId = args.argi2; 4983 final IAccessibilityInteractionConnectionCallback callback = 4984 (IAccessibilityInteractionConnectionCallback) args.arg1; 4985 mPool.release(args); 4986 boolean succeeded = false; 4987 try { 4988 View target = findViewByAccessibilityId(accessibilityViewId); 4989 if (target != null && target.getVisibility() == View.VISIBLE) { 4990 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4991 if (provider != null) { 4992 succeeded = provider.performAccessibilityAction(action, 4993 virtualDescendantId); 4994 } else if (virtualDescendantId == View.NO_ID) { 4995 switch (action) { 4996 case AccessibilityNodeInfo.ACTION_FOCUS: { 4997 if (!target.hasFocus()) { 4998 // Get out of touch mode since accessibility 4999 // wants to move focus around. 5000 ensureTouchMode(false); 5001 succeeded = target.requestFocus(); 5002 } 5003 } break; 5004 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 5005 if (target.hasFocus()) { 5006 target.clearFocus(); 5007 succeeded = !target.isFocused(); 5008 } 5009 } break; 5010 case AccessibilityNodeInfo.ACTION_SELECT: { 5011 if (!target.isSelected()) { 5012 target.setSelected(true); 5013 succeeded = target.isSelected(); 5014 } 5015 } break; 5016 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 5017 if (target.isSelected()) { 5018 target.setSelected(false); 5019 succeeded = !target.isSelected(); 5020 } 5021 } break; 5022 } 5023 } 5024 } 5025 } finally { 5026 try { 5027 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 5028 } catch (RemoteException re) { 5029 /* ignore - the other side will time out */ 5030 } 5031 } 5032 } 5033 5034 private View findViewByAccessibilityId(int accessibilityId) { 5035 View root = ViewRootImpl.this.mView; 5036 if (root == null) { 5037 return null; 5038 } 5039 View foundView = root.findViewByAccessibilityId(accessibilityId); 5040 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 5041 return null; 5042 } 5043 return foundView; 5044 } 5045 } 5046 5047 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5048 public volatile boolean mIsPending; 5049 5050 public void run() { 5051 if (mView != null) { 5052 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5053 mIsPending = false; 5054 } 5055 } 5056 } 5057 5058 /** 5059 * This class encapsulates a prefetching strategy for the accessibility APIs for 5060 * querying window content.It is responsible to prefetch a batch of 5061 * AccessibilityNodeInfos in addition to the one for a requested node. It caches 5062 * the ids of the prefeteched nodes such that they are fetched only once. 5063 */ 5064 class AccessibilityPrefetchStrategy { 5065 private static final int MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE = 100; 5066 5067 // We need to keep track of what we have sent for each interrogating 5068 // process. Usually there will be only one such process but we 5069 // should support the general case. Note that the accessibility event 5070 // stream will take care of clearing caches of querying processes that 5071 // are not longer alive, so we do not waste memory. 5072 private final LongSparseArray<AccessibilityNodeInfoCache> mAccessibilityNodeInfoCaches = 5073 new LongSparseArray<AccessibilityNodeInfoCache>(); 5074 5075 private AccessibilityNodeInfoCache getCacheForInterrogatingPid(long interrogatingPid) { 5076 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.get(interrogatingPid); 5077 if (cache == null) { 5078 cache = AccessibilityNodeInfoCache.newAccessibilityNodeInfoCache(); 5079 mAccessibilityNodeInfoCaches.put(interrogatingPid, cache); 5080 } 5081 return cache; 5082 } 5083 5084 public void onAccessibilityEvent(AccessibilityEvent event) { 5085 final int cacheCount = mAccessibilityNodeInfoCaches.size(); 5086 for (int i = 0; i < cacheCount; i++) { 5087 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.valueAt(i); 5088 cache.onAccessibilityEvent(event); 5089 } 5090 } 5091 5092 public void prefetchAccessibilityNodeInfos(long interrogatingPid, View root, 5093 List<AccessibilityNodeInfo> outInfos) { 5094 addAndCacheNotCachedNodeInfo(interrogatingPid, root, outInfos); 5095 addAndCacheNotCachedPredecessorInfos(interrogatingPid, root, outInfos); 5096 addAndCacheNotCachedDescendantInfos(interrogatingPid, root, outInfos); 5097 } 5098 5099 private void addAndCacheNotCachedNodeInfo(long interrogatingPid, 5100 View view, List<AccessibilityNodeInfo> outInfos) { 5101 final long accessibilityNodeId = AccessibilityNodeInfo.makeNodeId( 5102 view.getAccessibilityViewId(), View.NO_ID); 5103 AccessibilityNodeInfoCache cache = getCacheForInterrogatingPid(interrogatingPid); 5104 if (!cache.containsKey(accessibilityNodeId)) { 5105 // Account for the ids of the fetched infos. The infos will be 5106 // cached in the window querying process. We just need to know 5107 // which infos are cached to avoid fetching a cached one again. 5108 cache.put(accessibilityNodeId, null); 5109 outInfos.add(view.createAccessibilityNodeInfo()); 5110 } 5111 } 5112 5113 private void addAndCacheNotCachedPredecessorInfos(long interrogatingPid, View view, 5114 List<AccessibilityNodeInfo> outInfos) { 5115 ViewParent predecessor = view.getParent(); 5116 while (predecessor instanceof View 5117 && outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) { 5118 View predecessorView = (View) predecessor; 5119 addAndCacheNotCachedNodeInfo(interrogatingPid, predecessorView, outInfos); 5120 predecessor = predecessor.getParent(); 5121 } 5122 } 5123 5124 private void addAndCacheNotCachedDescendantInfos(long interrogatingPid, View view, 5125 List<AccessibilityNodeInfo> outInfos) { 5126 if (outInfos.size() > MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE 5127 || view.getAccessibilityNodeProvider() != null) { 5128 return; 5129 } 5130 addAndCacheNotCachedNodeInfo(interrogatingPid, view, outInfos); 5131 if (view instanceof ViewGroup) { 5132 ViewGroup rootGroup = (ViewGroup) view; 5133 final int childCount = rootGroup.getChildCount(); 5134 for (int i = 0; i < childCount; i++) { 5135 View child = rootGroup.getChildAt(i); 5136 addAndCacheNotCachedDescendantInfos(interrogatingPid, child, outInfos); 5137 } 5138 } 5139 } 5140 } 5141} 5142