ViewRootImpl.java revision dd29f8c4e3db3338bc055302145c3bc51a27566f
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 int mViewVisibility; 178 boolean mAppVisible = true; 179 int mOrigWindowType = -1; 180 181 // Set to true if the owner of this window is in the stopped state, 182 // so the window should no longer be active. 183 boolean mStopped = false; 184 185 boolean mLastInCompatMode = false; 186 187 SurfaceHolder.Callback2 mSurfaceHolderCallback; 188 BaseSurfaceHolder mSurfaceHolder; 189 boolean mIsCreating; 190 boolean mDrawingAllowed; 191 192 final Region mTransparentRegion; 193 final Region mPreviousTransparentRegion; 194 195 int mWidth; 196 int mHeight; 197 Rect mDirty; 198 final Rect mCurrentDirty = new Rect(); 199 final Rect mPreviousDirty = new Rect(); 200 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 long mLastTraversalFinishedTimeNanos; 216 long mLastDrawFinishedTimeNanos; 217 boolean mWillDrawSoon; 218 boolean mLayoutRequested; 219 boolean mFirst; 220 boolean mReportNextDraw; 221 boolean mFullRedrawNeeded; 222 boolean mNewSurfaceNeeded; 223 boolean mHasHadWindowFocus; 224 boolean mLastWasImTarget; 225 226 // Pool of queued input events. 227 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 228 private QueuedInputEvent mQueuedInputEventPool; 229 private int mQueuedInputEventPoolSize; 230 231 // Input event queue. 232 QueuedInputEvent mFirstPendingInputEvent; 233 QueuedInputEvent mCurrentInputEvent; 234 boolean mProcessInputEventsScheduled; 235 236 boolean mWindowAttributesChanged = false; 237 int mWindowAttributesChangesFlag = 0; 238 239 // These can be accessed by any thread, must be protected with a lock. 240 // Surface can never be reassigned or cleared (use Surface.clear()). 241 private final Surface mSurface = new Surface(); 242 243 boolean mAdded; 244 boolean mAddedTouchMode; 245 246 CompatibilityInfoHolder mCompatibilityInfo; 247 248 /*package*/ int mAddNesting; 249 250 // These are accessed by multiple threads. 251 final Rect mWinFrame; // frame given by window manager. 252 253 final Rect mPendingVisibleInsets = new Rect(); 254 final Rect mPendingContentInsets = new Rect(); 255 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 256 = new ViewTreeObserver.InternalInsetsInfo(); 257 258 final Configuration mLastConfiguration = new Configuration(); 259 final Configuration mPendingConfiguration = new Configuration(); 260 261 class ResizedInfo { 262 Rect coveredInsets; 263 Rect visibleInsets; 264 Configuration newConfig; 265 } 266 267 boolean mScrollMayChange; 268 int mSoftInputMode; 269 View mLastScrolledFocus; 270 int mScrollY; 271 int mCurScrollY; 272 Scroller mScroller; 273 HardwareLayer mResizeBuffer; 274 long mResizeBufferStartTime; 275 int mResizeBufferDuration; 276 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 277 private ArrayList<LayoutTransition> mPendingTransitions; 278 279 final ViewConfiguration mViewConfiguration; 280 281 /* Drag/drop */ 282 ClipDescription mDragDescription; 283 View mCurrentDragView; 284 volatile Object mLocalDragState; 285 final PointF mDragPoint = new PointF(); 286 final PointF mLastTouchPoint = new PointF(); 287 288 private boolean mProfileRendering; 289 private Thread mRenderProfiler; 290 private volatile boolean mRenderProfilingEnabled; 291 292 // Variables to track frames per second, enabled via DEBUG_FPS flag 293 private long mFpsStartTime = -1; 294 private long mFpsPrevTime = -1; 295 private int mFpsNumFrames; 296 297 /** 298 * see {@link #playSoundEffect(int)} 299 */ 300 AudioManager mAudioManager; 301 302 final AccessibilityManager mAccessibilityManager; 303 304 AccessibilityInteractionController mAccessibilityInteractionController; 305 306 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 307 308 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 309 310 AccessibilityPrefetchStrategy mAccessibilityPrefetchStrategy; 311 312 private final int mDensity; 313 314 /** 315 * Consistency verifier for debugging purposes. 316 */ 317 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 318 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 319 new InputEventConsistencyVerifier(this, 0) : null; 320 321 public static IWindowSession getWindowSession(Looper mainLooper) { 322 synchronized (mStaticInit) { 323 if (!mInitialized) { 324 try { 325 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 326 IWindowManager windowManager = Display.getWindowManager(); 327 sWindowSession = windowManager.openSession( 328 imm.getClient(), imm.getInputContext()); 329 float animatorScale = windowManager.getAnimationScale(2); 330 ValueAnimator.setDurationScale(animatorScale); 331 mInitialized = true; 332 } catch (RemoteException e) { 333 } 334 } 335 return sWindowSession; 336 } 337 } 338 339 static final class SystemUiVisibilityInfo { 340 int seq; 341 int globalVisibility; 342 int localValue; 343 int localChanges; 344 } 345 346 public ViewRootImpl(Context context) { 347 super(); 348 349 if (MEASURE_LATENCY) { 350 if (lt == null) { 351 lt = new LatencyTimer(100, 1000); 352 } 353 } 354 355 // Initialize the statics when this class is first instantiated. This is 356 // done here instead of in the static block because Zygote does not 357 // allow the spawning of threads. 358 getWindowSession(context.getMainLooper()); 359 360 mThread = Thread.currentThread(); 361 mLocation = new WindowLeaked(null); 362 mLocation.fillInStackTrace(); 363 mWidth = -1; 364 mHeight = -1; 365 mDirty = new Rect(); 366 mTempRect = new Rect(); 367 mVisRect = new Rect(); 368 mWinFrame = new Rect(); 369 mWindow = new W(this); 370 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 371 mInputMethodCallback = new InputMethodCallback(this); 372 mViewVisibility = View.GONE; 373 mTransparentRegion = new Region(); 374 mPreviousTransparentRegion = new Region(); 375 mFirst = true; // true for the first time the view is added 376 mAdded = false; 377 mAccessibilityManager = AccessibilityManager.getInstance(context); 378 mAccessibilityInteractionConnectionManager = 379 new AccessibilityInteractionConnectionManager(); 380 mAccessibilityManager.addAccessibilityStateChangeListener( 381 mAccessibilityInteractionConnectionManager); 382 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 383 mViewConfiguration = ViewConfiguration.get(context); 384 mDensity = context.getResources().getDisplayMetrics().densityDpi; 385 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 386 mProfileRendering = Boolean.parseBoolean( 387 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 388 mChoreographer = Choreographer.getInstance(); 389 } 390 391 /** 392 * @return True if the application requests the use of a separate render thread, 393 * false otherwise 394 */ 395 private static boolean isRenderThreadRequested(Context context) { 396 synchronized (sRenderThreadQueryLock) { 397 if (!sRenderThreadQueried) { 398 final PackageManager packageManager = context.getPackageManager(); 399 final String packageName = context.getApplicationInfo().packageName; 400 try { 401 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 402 PackageManager.GET_META_DATA); 403 if (applicationInfo.metaData != null) { 404 sUseRenderThread = applicationInfo.metaData.getBoolean( 405 "android.graphics.renderThread", false); 406 } 407 } catch (PackageManager.NameNotFoundException e) { 408 } finally { 409 sRenderThreadQueried = true; 410 } 411 } 412 return sUseRenderThread; 413 } 414 } 415 416 public static void addFirstDrawHandler(Runnable callback) { 417 synchronized (sFirstDrawHandlers) { 418 if (!sFirstDrawComplete) { 419 sFirstDrawHandlers.add(callback); 420 } 421 } 422 } 423 424 public static void addConfigCallback(ComponentCallbacks callback) { 425 synchronized (sConfigCallbacks) { 426 sConfigCallbacks.add(callback); 427 } 428 } 429 430 // FIXME for perf testing only 431 private boolean mProfile = false; 432 433 /** 434 * Call this to profile the next traversal call. 435 * FIXME for perf testing only. Remove eventually 436 */ 437 public void profile() { 438 mProfile = true; 439 } 440 441 /** 442 * Indicates whether we are in touch mode. Calling this method triggers an IPC 443 * call and should be avoided whenever possible. 444 * 445 * @return True, if the device is in touch mode, false otherwise. 446 * 447 * @hide 448 */ 449 static boolean isInTouchMode() { 450 if (mInitialized) { 451 try { 452 return sWindowSession.getInTouchMode(); 453 } catch (RemoteException e) { 454 } 455 } 456 return false; 457 } 458 459 /** 460 * We have one child 461 */ 462 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 463 synchronized (this) { 464 if (mView == null) { 465 mChoreographer.addOnDrawListener(this); 466 467 mView = view; 468 mFallbackEventHandler.setView(view); 469 mWindowAttributes.copyFrom(attrs); 470 attrs = mWindowAttributes; 471 472 if (view instanceof RootViewSurfaceTaker) { 473 mSurfaceHolderCallback = 474 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 475 if (mSurfaceHolderCallback != null) { 476 mSurfaceHolder = new TakenSurfaceHolder(); 477 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 478 } 479 } 480 481 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 482 mTranslator = compatibilityInfo.getTranslator(); 483 484 // If the application owns the surface, don't enable hardware acceleration 485 if (mSurfaceHolder == null) { 486 enableHardwareAcceleration(mView.getContext(), attrs); 487 } 488 489 boolean restore = false; 490 if (mTranslator != null) { 491 mSurface.setCompatibilityTranslator(mTranslator); 492 restore = true; 493 attrs.backup(); 494 mTranslator.translateWindowLayout(attrs); 495 } 496 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 497 498 if (!compatibilityInfo.supportsScreen()) { 499 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 500 mLastInCompatMode = true; 501 } 502 503 mSoftInputMode = attrs.softInputMode; 504 mWindowAttributesChanged = true; 505 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 506 mAttachInfo.mRootView = view; 507 mAttachInfo.mScalingRequired = mTranslator != null; 508 mAttachInfo.mApplicationScale = 509 mTranslator == null ? 1.0f : mTranslator.applicationScale; 510 if (panelParentView != null) { 511 mAttachInfo.mPanelParentWindowToken 512 = panelParentView.getApplicationWindowToken(); 513 } 514 mAdded = true; 515 int res; /* = WindowManagerImpl.ADD_OKAY; */ 516 517 // Schedule the first layout -before- adding to the window 518 // manager, to make sure we do the relayout before receiving 519 // any other events from the system. 520 requestLayout(); 521 if ((mWindowAttributes.inputFeatures 522 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 523 mInputChannel = new InputChannel(); 524 } 525 try { 526 mOrigWindowType = mWindowAttributes.type; 527 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 528 getHostVisibility(), mAttachInfo.mContentInsets, 529 mInputChannel); 530 } catch (RemoteException e) { 531 mAdded = false; 532 mView = null; 533 mAttachInfo.mRootView = null; 534 mInputChannel = null; 535 mFallbackEventHandler.setView(null); 536 unscheduleTraversals(); 537 throw new RuntimeException("Adding window failed", e); 538 } finally { 539 if (restore) { 540 attrs.restore(); 541 } 542 } 543 544 if (mTranslator != null) { 545 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 546 } 547 mPendingContentInsets.set(mAttachInfo.mContentInsets); 548 mPendingVisibleInsets.set(0, 0, 0, 0); 549 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 550 if (res < WindowManagerImpl.ADD_OKAY) { 551 mView = null; 552 mAttachInfo.mRootView = null; 553 mAdded = false; 554 mFallbackEventHandler.setView(null); 555 unscheduleTraversals(); 556 switch (res) { 557 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 558 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 559 throw new WindowManagerImpl.BadTokenException( 560 "Unable to add window -- token " + attrs.token 561 + " is not valid; is your activity running?"); 562 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 563 throw new WindowManagerImpl.BadTokenException( 564 "Unable to add window -- token " + attrs.token 565 + " is not for an application"); 566 case WindowManagerImpl.ADD_APP_EXITING: 567 throw new WindowManagerImpl.BadTokenException( 568 "Unable to add window -- app for token " + attrs.token 569 + " is exiting"); 570 case WindowManagerImpl.ADD_DUPLICATE_ADD: 571 throw new WindowManagerImpl.BadTokenException( 572 "Unable to add window -- window " + mWindow 573 + " has already been added"); 574 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 575 // Silently ignore -- we would have just removed it 576 // right away, anyway. 577 return; 578 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 579 throw new WindowManagerImpl.BadTokenException( 580 "Unable to add window " + mWindow + 581 " -- another window of this type already exists"); 582 case WindowManagerImpl.ADD_PERMISSION_DENIED: 583 throw new WindowManagerImpl.BadTokenException( 584 "Unable to add window " + mWindow + 585 " -- permission denied for this window type"); 586 } 587 throw new RuntimeException( 588 "Unable to add window -- unknown error code " + res); 589 } 590 591 if (view instanceof RootViewSurfaceTaker) { 592 mInputQueueCallback = 593 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 594 } 595 if (mInputChannel != null) { 596 if (mInputQueueCallback != null) { 597 mInputQueue = new InputQueue(mInputChannel); 598 mInputQueueCallback.onInputQueueCreated(mInputQueue); 599 } else { 600 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 601 Looper.myLooper()); 602 } 603 } 604 605 view.assignParent(this); 606 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 607 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 608 609 if (mAccessibilityManager.isEnabled()) { 610 mAccessibilityInteractionConnectionManager.ensureConnection(); 611 } 612 } 613 } 614 } 615 616 void destroyHardwareResources() { 617 if (mAttachInfo.mHardwareRenderer != null) { 618 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 619 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 620 } 621 mAttachInfo.mHardwareRenderer.destroy(false); 622 } 623 } 624 625 void terminateHardwareResources() { 626 if (mAttachInfo.mHardwareRenderer != null) { 627 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 628 mAttachInfo.mHardwareRenderer.destroy(false); 629 } 630 } 631 632 void destroyHardwareLayers() { 633 if (mThread != Thread.currentThread()) { 634 if (mAttachInfo.mHardwareRenderer != null && 635 mAttachInfo.mHardwareRenderer.isEnabled()) { 636 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 637 } 638 } else { 639 if (mAttachInfo.mHardwareRenderer != null && 640 mAttachInfo.mHardwareRenderer.isEnabled()) { 641 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 642 } 643 } 644 } 645 646 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 647 mAttachInfo.mHardwareAccelerated = false; 648 mAttachInfo.mHardwareAccelerationRequested = false; 649 650 // Don't enable hardware acceleration when the application is in compatibility mode 651 if (mTranslator != null) return; 652 653 // Try to enable hardware acceleration if requested 654 final boolean hardwareAccelerated = 655 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 656 657 if (hardwareAccelerated) { 658 if (!HardwareRenderer.isAvailable()) { 659 return; 660 } 661 662 // Persistent processes (including the system) should not do 663 // accelerated rendering on low-end devices. In that case, 664 // sRendererDisabled will be set. In addition, the system process 665 // itself should never do accelerated rendering. In that case, both 666 // sRendererDisabled and sSystemRendererDisabled are set. When 667 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 668 // can be used by code on the system process to escape that and enable 669 // HW accelerated drawing. (This is basically for the lock screen.) 670 671 final boolean fakeHwAccelerated = (attrs.privateFlags & 672 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 673 final boolean forceHwAccelerated = (attrs.privateFlags & 674 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 675 676 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 677 && forceHwAccelerated)) { 678 // Don't enable hardware acceleration when we're not on the main thread 679 if (!HardwareRenderer.sSystemRendererDisabled && 680 Looper.getMainLooper() != Looper.myLooper()) { 681 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 682 + "acceleration outside of the main thread, aborting"); 683 return; 684 } 685 686 boolean renderThread = isRenderThreadRequested(context); 687 if (renderThread) { 688 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 689 } 690 691 if (mAttachInfo.mHardwareRenderer != null) { 692 mAttachInfo.mHardwareRenderer.destroy(true); 693 } 694 695 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 696 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 697 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 698 = mAttachInfo.mHardwareRenderer != null; 699 700 } else if (fakeHwAccelerated) { 701 // The window had wanted to use hardware acceleration, but this 702 // is not allowed in its process. By setting this flag, it can 703 // still render as if it was accelerated. This is basically for 704 // the preview windows the window manager shows for launching 705 // applications, so they will look more like the app being launched. 706 mAttachInfo.mHardwareAccelerationRequested = true; 707 } 708 } 709 } 710 711 public View getView() { 712 return mView; 713 } 714 715 final WindowLeaked getLocation() { 716 return mLocation; 717 } 718 719 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 720 synchronized (this) { 721 int oldSoftInputMode = mWindowAttributes.softInputMode; 722 // preserve compatible window flag if exists. 723 int compatibleWindowFlag = 724 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 725 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 726 mWindowAttributes.flags |= compatibleWindowFlag; 727 728 if (newView) { 729 mSoftInputMode = attrs.softInputMode; 730 requestLayout(); 731 } 732 // Don't lose the mode we last auto-computed. 733 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 734 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 735 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 736 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 737 | (oldSoftInputMode 738 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 739 } 740 mWindowAttributesChanged = true; 741 scheduleTraversals(); 742 } 743 } 744 745 void handleAppVisibility(boolean visible) { 746 if (mAppVisible != visible) { 747 mAppVisible = visible; 748 scheduleTraversals(); 749 } 750 } 751 752 void handleGetNewSurface() { 753 mNewSurfaceNeeded = true; 754 mFullRedrawNeeded = true; 755 scheduleTraversals(); 756 } 757 758 /** 759 * {@inheritDoc} 760 */ 761 public void requestLayout() { 762 checkThread(); 763 mLayoutRequested = true; 764 scheduleTraversals(); 765 } 766 767 /** 768 * {@inheritDoc} 769 */ 770 public boolean isLayoutRequested() { 771 return mLayoutRequested; 772 } 773 774 public void invalidateChild(View child, Rect dirty) { 775 checkThread(); 776 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 777 if (dirty == null) { 778 // Fast invalidation for GL-enabled applications; GL must redraw everything 779 invalidate(); 780 return; 781 } 782 if (mCurScrollY != 0 || mTranslator != null) { 783 mTempRect.set(dirty); 784 dirty = mTempRect; 785 if (mCurScrollY != 0) { 786 dirty.offset(0, -mCurScrollY); 787 } 788 if (mTranslator != null) { 789 mTranslator.translateRectInAppWindowToScreen(dirty); 790 } 791 if (mAttachInfo.mScalingRequired) { 792 dirty.inset(-1, -1); 793 } 794 } 795 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 796 mAttachInfo.mSetIgnoreDirtyState = true; 797 mAttachInfo.mIgnoreDirtyState = true; 798 } 799 mDirty.union(dirty); 800 if (!mWillDrawSoon) { 801 scheduleTraversals(); 802 } 803 } 804 805 void invalidate() { 806 mDirty.set(0, 0, mWidth, mHeight); 807 scheduleTraversals(); 808 } 809 810 void setStopped(boolean stopped) { 811 if (mStopped != stopped) { 812 mStopped = stopped; 813 if (!stopped) { 814 scheduleTraversals(); 815 } 816 } 817 } 818 819 public ViewParent getParent() { 820 return null; 821 } 822 823 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 824 invalidateChild(null, dirty); 825 return null; 826 } 827 828 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 829 if (child != mView) { 830 throw new RuntimeException("child is not mine, honest!"); 831 } 832 // Note: don't apply scroll offset, because we want to know its 833 // visibility in the virtual canvas being given to the view hierarchy. 834 return r.intersect(0, 0, mWidth, mHeight); 835 } 836 837 public void bringChildToFront(View child) { 838 } 839 840 public void scheduleTraversals() { 841 if (!mTraversalScheduled) { 842 mTraversalScheduled = true; 843 mChoreographer.scheduleDraw(); 844 } 845 } 846 847 public void unscheduleTraversals() { 848 mTraversalScheduled = false; 849 } 850 851 @Override 852 public void onDraw() { 853 if (mInputEventReceiver != null) { 854 mInputEventReceiver.consumeBatchedInputEvents(); 855 } 856 doProcessInputEvents(); 857 858 if (mTraversalScheduled) { 859 mTraversalScheduled = false; 860 doTraversal(); 861 } 862 } 863 864 int getHostVisibility() { 865 return mAppVisible ? mView.getVisibility() : View.GONE; 866 } 867 868 void disposeResizeBuffer() { 869 if (mResizeBuffer != null) { 870 mResizeBuffer.destroy(); 871 mResizeBuffer = null; 872 } 873 } 874 875 /** 876 * Add LayoutTransition to the list of transitions to be started in the next traversal. 877 * This list will be cleared after the transitions on the list are start()'ed. These 878 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 879 * happens during the layout phase of traversal, which we want to complete before any of the 880 * animations are started (because those animations may side-effect properties that layout 881 * depends upon, like the bounding rectangles of the affected views). So we add the transition 882 * to the list and it is started just prior to starting the drawing phase of traversal. 883 * 884 * @param transition The LayoutTransition to be started on the next traversal. 885 * 886 * @hide 887 */ 888 public void requestTransitionStart(LayoutTransition transition) { 889 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 890 if (mPendingTransitions == null) { 891 mPendingTransitions = new ArrayList<LayoutTransition>(); 892 } 893 mPendingTransitions.add(transition); 894 } 895 } 896 897 private void doTraversal() { 898 if (mProfile) { 899 Debug.startMethodTracing("ViewAncestor"); 900 } 901 902 final long traversalStartTime; 903 if (ViewDebug.DEBUG_LATENCY) { 904 traversalStartTime = System.nanoTime(); 905 if (mLastTraversalFinishedTimeNanos != 0) { 906 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 907 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 908 + "ms since the last traversals finished."); 909 } else { 910 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 911 } 912 } 913 914 performTraversals(); 915 916 if (ViewDebug.DEBUG_LATENCY) { 917 long now = System.nanoTime(); 918 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 919 + ((now - traversalStartTime) * 0.000001f) 920 + "ms."); 921 mLastTraversalFinishedTimeNanos = now; 922 } 923 924 if (mProfile) { 925 Debug.stopMethodTracing(); 926 mProfile = false; 927 } 928 } 929 930 private void performTraversals() { 931 // cache mView since it is used so much below... 932 final View host = mView; 933 934 if (DBG) { 935 System.out.println("======================================"); 936 System.out.println("performTraversals"); 937 host.debug(); 938 } 939 940 if (host == null || !mAdded) 941 return; 942 943 mWillDrawSoon = true; 944 boolean windowSizeMayChange = false; 945 boolean newSurface = false; 946 boolean surfaceChanged = false; 947 WindowManager.LayoutParams lp = mWindowAttributes; 948 949 int desiredWindowWidth; 950 int desiredWindowHeight; 951 int childWidthMeasureSpec; 952 int childHeightMeasureSpec; 953 954 final View.AttachInfo attachInfo = mAttachInfo; 955 956 final int viewVisibility = getHostVisibility(); 957 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 958 || mNewSurfaceNeeded; 959 960 WindowManager.LayoutParams params = null; 961 if (mWindowAttributesChanged) { 962 mWindowAttributesChanged = false; 963 surfaceChanged = true; 964 params = lp; 965 } 966 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 967 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 968 params = lp; 969 mFullRedrawNeeded = true; 970 mLayoutRequested = true; 971 if (mLastInCompatMode) { 972 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 973 mLastInCompatMode = false; 974 } else { 975 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 976 mLastInCompatMode = true; 977 } 978 } 979 980 mWindowAttributesChangesFlag = 0; 981 982 Rect frame = mWinFrame; 983 if (mFirst) { 984 mFullRedrawNeeded = true; 985 mLayoutRequested = true; 986 987 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 988 // NOTE -- system code, won't try to do compat mode. 989 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 990 Point size = new Point(); 991 disp.getRealSize(size); 992 desiredWindowWidth = size.x; 993 desiredWindowHeight = size.y; 994 } else { 995 DisplayMetrics packageMetrics = 996 mView.getContext().getResources().getDisplayMetrics(); 997 desiredWindowWidth = packageMetrics.widthPixels; 998 desiredWindowHeight = packageMetrics.heightPixels; 999 } 1000 1001 // For the very first time, tell the view hierarchy that it 1002 // is attached to the window. Note that at this point the surface 1003 // object is not initialized to its backing store, but soon it 1004 // will be (assuming the window is visible). 1005 attachInfo.mSurface = mSurface; 1006 // We used to use the following condition to choose 32 bits drawing caches: 1007 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1008 // However, windows are now always 32 bits by default, so choose 32 bits 1009 attachInfo.mUse32BitDrawingCache = true; 1010 attachInfo.mHasWindowFocus = false; 1011 attachInfo.mWindowVisibility = viewVisibility; 1012 attachInfo.mRecomputeGlobalAttributes = false; 1013 attachInfo.mKeepScreenOn = false; 1014 attachInfo.mSystemUiVisibility = 0; 1015 viewVisibilityChanged = false; 1016 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1017 host.dispatchAttachedToWindow(attachInfo, 0); 1018 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1019 1020 host.fitSystemWindows(mAttachInfo.mContentInsets); 1021 1022 } else { 1023 desiredWindowWidth = frame.width(); 1024 desiredWindowHeight = frame.height(); 1025 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1026 if (DEBUG_ORIENTATION) Log.v(TAG, 1027 "View " + host + " resized to: " + frame); 1028 mFullRedrawNeeded = true; 1029 mLayoutRequested = true; 1030 windowSizeMayChange = true; 1031 } 1032 } 1033 1034 if (viewVisibilityChanged) { 1035 attachInfo.mWindowVisibility = viewVisibility; 1036 host.dispatchWindowVisibilityChanged(viewVisibility); 1037 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1038 destroyHardwareResources(); 1039 } 1040 if (viewVisibility == View.GONE) { 1041 // After making a window gone, we will count it as being 1042 // shown for the first time the next time it gets focus. 1043 mHasHadWindowFocus = false; 1044 } 1045 } 1046 1047 boolean insetsChanged = false; 1048 1049 if (mLayoutRequested && !mStopped) { 1050 // Execute enqueued actions on every layout in case a view that was detached 1051 // enqueued an action after being detached 1052 getRunQueue().executeActions(attachInfo.mHandler); 1053 1054 final Resources res = mView.getContext().getResources(); 1055 1056 if (mFirst) { 1057 // make sure touch mode code executes by setting cached value 1058 // to opposite of the added touch mode. 1059 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1060 ensureTouchModeLocally(mAddedTouchMode); 1061 } else { 1062 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1063 insetsChanged = true; 1064 } 1065 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1066 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1067 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1068 + mAttachInfo.mVisibleInsets); 1069 } 1070 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1071 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1072 windowSizeMayChange = true; 1073 1074 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1075 // NOTE -- system code, won't try to do compat mode. 1076 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1077 Point size = new Point(); 1078 disp.getRealSize(size); 1079 desiredWindowWidth = size.x; 1080 desiredWindowHeight = size.y; 1081 } else { 1082 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1083 desiredWindowWidth = packageMetrics.widthPixels; 1084 desiredWindowHeight = packageMetrics.heightPixels; 1085 } 1086 } 1087 } 1088 1089 // Ask host how big it wants to be 1090 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1091 "Measuring " + host + " in display " + desiredWindowWidth 1092 + "x" + desiredWindowHeight + "..."); 1093 1094 boolean goodMeasure = false; 1095 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1096 // On large screens, we don't want to allow dialogs to just 1097 // stretch to fill the entire width of the screen to display 1098 // one line of text. First try doing the layout at a smaller 1099 // size to see if it will fit. 1100 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1101 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1102 int baseSize = 0; 1103 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1104 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1105 } 1106 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1107 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1108 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1109 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1110 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1111 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1112 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1113 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1114 goodMeasure = true; 1115 } else { 1116 // Didn't fit in that size... try expanding a bit. 1117 baseSize = (baseSize+desiredWindowWidth)/2; 1118 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1119 + baseSize); 1120 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1121 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1122 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1123 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1124 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1125 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1126 goodMeasure = true; 1127 } 1128 } 1129 } 1130 } 1131 1132 if (!goodMeasure) { 1133 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1134 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1135 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1136 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1137 windowSizeMayChange = true; 1138 } 1139 } 1140 1141 if (DBG) { 1142 System.out.println("======================================"); 1143 System.out.println("performTraversals -- after measure"); 1144 host.debug(); 1145 } 1146 } 1147 1148 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1149 //Log.i(TAG, "Computing view hierarchy attributes!"); 1150 attachInfo.mRecomputeGlobalAttributes = false; 1151 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1152 int oldVis = attachInfo.mSystemUiVisibility; 1153 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1154 attachInfo.mKeepScreenOn = false; 1155 attachInfo.mSystemUiVisibility = 0; 1156 attachInfo.mHasSystemUiListeners = false; 1157 host.dispatchCollectViewAttributes(0); 1158 if (attachInfo.mKeepScreenOn != oldScreenOn 1159 || attachInfo.mSystemUiVisibility != oldVis 1160 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1161 params = lp; 1162 } 1163 } 1164 if (attachInfo.mForceReportNewAttributes) { 1165 attachInfo.mForceReportNewAttributes = false; 1166 params = lp; 1167 } 1168 1169 if (mFirst || attachInfo.mViewVisibilityChanged) { 1170 attachInfo.mViewVisibilityChanged = false; 1171 int resizeMode = mSoftInputMode & 1172 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1173 // If we are in auto resize mode, then we need to determine 1174 // what mode to use now. 1175 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1176 final int N = attachInfo.mScrollContainers.size(); 1177 for (int i=0; i<N; i++) { 1178 if (attachInfo.mScrollContainers.get(i).isShown()) { 1179 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1180 } 1181 } 1182 if (resizeMode == 0) { 1183 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1184 } 1185 if ((lp.softInputMode & 1186 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1187 lp.softInputMode = (lp.softInputMode & 1188 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1189 resizeMode; 1190 params = lp; 1191 } 1192 } 1193 } 1194 1195 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1196 if (!PixelFormat.formatHasAlpha(params.format)) { 1197 params.format = PixelFormat.TRANSLUCENT; 1198 } 1199 } 1200 1201 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1202 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1203 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1204 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1205 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1206 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1207 1208 final boolean computesInternalInsets = 1209 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1210 1211 boolean insetsPending = false; 1212 int relayoutResult = 0; 1213 1214 if (mFirst || windowShouldResize || insetsChanged || 1215 viewVisibilityChanged || params != null) { 1216 1217 if (viewVisibility == View.VISIBLE) { 1218 // If this window is giving internal insets to the window 1219 // manager, and it is being added or changing its visibility, 1220 // then we want to first give the window manager "fake" 1221 // insets to cause it to effectively ignore the content of 1222 // the window during layout. This avoids it briefly causing 1223 // other windows to resize/move based on the raw frame of the 1224 // window, waiting until we can finish laying out this window 1225 // and get back to the window manager with the ultimately 1226 // computed insets. 1227 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1228 } 1229 1230 if (mSurfaceHolder != null) { 1231 mSurfaceHolder.mSurfaceLock.lock(); 1232 mDrawingAllowed = true; 1233 } 1234 1235 boolean hwInitialized = false; 1236 boolean contentInsetsChanged = false; 1237 boolean visibleInsetsChanged; 1238 boolean hadSurface = mSurface.isValid(); 1239 1240 try { 1241 int fl = 0; 1242 if (params != null) { 1243 fl = params.flags; 1244 if (attachInfo.mKeepScreenOn) { 1245 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1246 } 1247 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1248 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1249 } 1250 if (DEBUG_LAYOUT) { 1251 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1252 host.getMeasuredHeight() + ", params=" + params); 1253 } 1254 1255 final int surfaceGenerationId = mSurface.getGenerationId(); 1256 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1257 1258 if (params != null) { 1259 params.flags = fl; 1260 } 1261 1262 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1263 + " content=" + mPendingContentInsets.toShortString() 1264 + " visible=" + mPendingVisibleInsets.toShortString() 1265 + " surface=" + mSurface); 1266 1267 if (mPendingConfiguration.seq != 0) { 1268 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1269 + mPendingConfiguration); 1270 updateConfiguration(mPendingConfiguration, !mFirst); 1271 mPendingConfiguration.seq = 0; 1272 } 1273 1274 contentInsetsChanged = !mPendingContentInsets.equals( 1275 mAttachInfo.mContentInsets); 1276 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1277 mAttachInfo.mVisibleInsets); 1278 if (contentInsetsChanged) { 1279 if (mWidth > 0 && mHeight > 0 && 1280 mSurface != null && mSurface.isValid() && 1281 !mAttachInfo.mTurnOffWindowResizeAnim && 1282 mAttachInfo.mHardwareRenderer != null && 1283 mAttachInfo.mHardwareRenderer.isEnabled() && 1284 mAttachInfo.mHardwareRenderer.validate() && 1285 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1286 1287 disposeResizeBuffer(); 1288 1289 boolean completed = false; 1290 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1291 HardwareCanvas layerCanvas = null; 1292 try { 1293 if (mResizeBuffer == null) { 1294 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1295 mWidth, mHeight, false); 1296 } else if (mResizeBuffer.getWidth() != mWidth || 1297 mResizeBuffer.getHeight() != mHeight) { 1298 mResizeBuffer.resize(mWidth, mHeight); 1299 } 1300 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1301 layerCanvas.setViewport(mWidth, mHeight); 1302 layerCanvas.onPreDraw(null); 1303 final int restoreCount = layerCanvas.save(); 1304 1305 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1306 1307 int yoff; 1308 final boolean scrolling = mScroller != null 1309 && mScroller.computeScrollOffset(); 1310 if (scrolling) { 1311 yoff = mScroller.getCurrY(); 1312 mScroller.abortAnimation(); 1313 } else { 1314 yoff = mScrollY; 1315 } 1316 1317 layerCanvas.translate(0, -yoff); 1318 if (mTranslator != null) { 1319 mTranslator.translateCanvas(layerCanvas); 1320 } 1321 1322 mView.draw(layerCanvas); 1323 1324 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1325 mResizeBufferDuration = mView.getResources().getInteger( 1326 com.android.internal.R.integer.config_mediumAnimTime); 1327 completed = true; 1328 1329 layerCanvas.restoreToCount(restoreCount); 1330 } catch (OutOfMemoryError e) { 1331 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1332 } finally { 1333 if (layerCanvas != null) { 1334 layerCanvas.onPostDraw(); 1335 } 1336 if (mResizeBuffer != null) { 1337 mResizeBuffer.end(hwRendererCanvas); 1338 if (!completed) { 1339 mResizeBuffer.destroy(); 1340 mResizeBuffer = null; 1341 } 1342 } 1343 } 1344 } 1345 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1346 host.fitSystemWindows(mAttachInfo.mContentInsets); 1347 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1348 + mAttachInfo.mContentInsets); 1349 } 1350 if (visibleInsetsChanged) { 1351 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1352 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1353 + mAttachInfo.mVisibleInsets); 1354 } 1355 1356 if (!hadSurface) { 1357 if (mSurface.isValid()) { 1358 // If we are creating a new surface, then we need to 1359 // completely redraw it. Also, when we get to the 1360 // point of drawing it we will hold off and schedule 1361 // a new traversal instead. This is so we can tell the 1362 // window manager about all of the windows being displayed 1363 // before actually drawing them, so it can display then 1364 // all at once. 1365 newSurface = true; 1366 mFullRedrawNeeded = true; 1367 mPreviousTransparentRegion.setEmpty(); 1368 1369 if (mAttachInfo.mHardwareRenderer != null) { 1370 try { 1371 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1372 } catch (Surface.OutOfResourcesException e) { 1373 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1374 try { 1375 if (!sWindowSession.outOfMemory(mWindow)) { 1376 Slog.w(TAG, "No processes killed for memory; killing self"); 1377 Process.killProcess(Process.myPid()); 1378 } 1379 } catch (RemoteException ex) { 1380 } 1381 mLayoutRequested = true; // ask wm for a new surface next time. 1382 return; 1383 } 1384 } 1385 } 1386 } else if (!mSurface.isValid()) { 1387 // If the surface has been removed, then reset the scroll 1388 // positions. 1389 mLastScrolledFocus = null; 1390 mScrollY = mCurScrollY = 0; 1391 if (mScroller != null) { 1392 mScroller.abortAnimation(); 1393 } 1394 disposeResizeBuffer(); 1395 // Our surface is gone 1396 if (mAttachInfo.mHardwareRenderer != null && 1397 mAttachInfo.mHardwareRenderer.isEnabled()) { 1398 mAttachInfo.mHardwareRenderer.destroy(true); 1399 } 1400 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1401 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1402 mFullRedrawNeeded = true; 1403 try { 1404 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1405 } catch (Surface.OutOfResourcesException e) { 1406 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1407 try { 1408 if (!sWindowSession.outOfMemory(mWindow)) { 1409 Slog.w(TAG, "No processes killed for memory; killing self"); 1410 Process.killProcess(Process.myPid()); 1411 } 1412 } catch (RemoteException ex) { 1413 } 1414 mLayoutRequested = true; // ask wm for a new surface next time. 1415 return; 1416 } 1417 } 1418 } catch (RemoteException e) { 1419 } 1420 1421 if (DEBUG_ORIENTATION) Log.v( 1422 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1423 1424 attachInfo.mWindowLeft = frame.left; 1425 attachInfo.mWindowTop = frame.top; 1426 1427 // !!FIXME!! This next section handles the case where we did not get the 1428 // window size we asked for. We should avoid this by getting a maximum size from 1429 // the window session beforehand. 1430 mWidth = frame.width(); 1431 mHeight = frame.height(); 1432 1433 if (mSurfaceHolder != null) { 1434 // The app owns the surface; tell it about what is going on. 1435 if (mSurface.isValid()) { 1436 // XXX .copyFrom() doesn't work! 1437 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1438 mSurfaceHolder.mSurface = mSurface; 1439 } 1440 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1441 mSurfaceHolder.mSurfaceLock.unlock(); 1442 if (mSurface.isValid()) { 1443 if (!hadSurface) { 1444 mSurfaceHolder.ungetCallbacks(); 1445 1446 mIsCreating = true; 1447 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1448 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1449 if (callbacks != null) { 1450 for (SurfaceHolder.Callback c : callbacks) { 1451 c.surfaceCreated(mSurfaceHolder); 1452 } 1453 } 1454 surfaceChanged = true; 1455 } 1456 if (surfaceChanged) { 1457 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1458 lp.format, mWidth, mHeight); 1459 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1460 if (callbacks != null) { 1461 for (SurfaceHolder.Callback c : callbacks) { 1462 c.surfaceChanged(mSurfaceHolder, lp.format, 1463 mWidth, mHeight); 1464 } 1465 } 1466 } 1467 mIsCreating = false; 1468 } else if (hadSurface) { 1469 mSurfaceHolder.ungetCallbacks(); 1470 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1471 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1472 if (callbacks != null) { 1473 for (SurfaceHolder.Callback c : callbacks) { 1474 c.surfaceDestroyed(mSurfaceHolder); 1475 } 1476 } 1477 mSurfaceHolder.mSurfaceLock.lock(); 1478 try { 1479 mSurfaceHolder.mSurface = new Surface(); 1480 } finally { 1481 mSurfaceHolder.mSurfaceLock.unlock(); 1482 } 1483 } 1484 } 1485 1486 if (mAttachInfo.mHardwareRenderer != null && 1487 mAttachInfo.mHardwareRenderer.isEnabled()) { 1488 if (hwInitialized || windowShouldResize || 1489 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1490 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1491 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1492 if (!hwInitialized) { 1493 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1494 } 1495 } 1496 } 1497 1498 if (!mStopped) { 1499 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1500 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1501 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1502 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1503 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1504 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1505 1506 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1507 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1508 + " mHeight=" + mHeight 1509 + " measuredHeight=" + host.getMeasuredHeight() 1510 + " coveredInsetsChanged=" + contentInsetsChanged); 1511 1512 // Ask host how big it wants to be 1513 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1514 1515 // Implementation of weights from WindowManager.LayoutParams 1516 // We just grow the dimensions as needed and re-measure if 1517 // needs be 1518 int width = host.getMeasuredWidth(); 1519 int height = host.getMeasuredHeight(); 1520 boolean measureAgain = false; 1521 1522 if (lp.horizontalWeight > 0.0f) { 1523 width += (int) ((mWidth - width) * lp.horizontalWeight); 1524 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1525 MeasureSpec.EXACTLY); 1526 measureAgain = true; 1527 } 1528 if (lp.verticalWeight > 0.0f) { 1529 height += (int) ((mHeight - height) * lp.verticalWeight); 1530 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1531 MeasureSpec.EXACTLY); 1532 measureAgain = true; 1533 } 1534 1535 if (measureAgain) { 1536 if (DEBUG_LAYOUT) Log.v(TAG, 1537 "And hey let's measure once more: width=" + width 1538 + " height=" + height); 1539 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1540 } 1541 1542 mLayoutRequested = true; 1543 } 1544 } 1545 } 1546 1547 final boolean didLayout = mLayoutRequested && !mStopped; 1548 boolean triggerGlobalLayoutListener = didLayout 1549 || attachInfo.mRecomputeGlobalAttributes; 1550 if (didLayout) { 1551 mLayoutRequested = false; 1552 mScrollMayChange = true; 1553 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1554 TAG, "Laying out " + host + " to (" + 1555 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1556 long startTime = 0L; 1557 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1558 startTime = SystemClock.elapsedRealtime(); 1559 } 1560 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1561 1562 if (false && ViewDebug.consistencyCheckEnabled) { 1563 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1564 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1565 + "please refer to the logs with the tag " 1566 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1567 } 1568 } 1569 1570 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1571 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1572 } 1573 1574 // By this point all views have been sized and positionned 1575 // We can compute the transparent area 1576 1577 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1578 // start out transparent 1579 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1580 host.getLocationInWindow(mTmpLocation); 1581 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1582 mTmpLocation[0] + host.mRight - host.mLeft, 1583 mTmpLocation[1] + host.mBottom - host.mTop); 1584 1585 host.gatherTransparentRegion(mTransparentRegion); 1586 if (mTranslator != null) { 1587 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1588 } 1589 1590 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1591 mPreviousTransparentRegion.set(mTransparentRegion); 1592 // reconfigure window manager 1593 try { 1594 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1595 } catch (RemoteException e) { 1596 } 1597 } 1598 } 1599 1600 if (DBG) { 1601 System.out.println("======================================"); 1602 System.out.println("performTraversals -- after setFrame"); 1603 host.debug(); 1604 } 1605 } 1606 1607 if (triggerGlobalLayoutListener) { 1608 attachInfo.mRecomputeGlobalAttributes = false; 1609 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1610 1611 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1612 postSendWindowContentChangedCallback(); 1613 } 1614 } 1615 1616 if (computesInternalInsets) { 1617 // Clear the original insets. 1618 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1619 insets.reset(); 1620 1621 // Compute new insets in place. 1622 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1623 1624 // Tell the window manager. 1625 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1626 mLastGivenInsets.set(insets); 1627 1628 // Translate insets to screen coordinates if needed. 1629 final Rect contentInsets; 1630 final Rect visibleInsets; 1631 final Region touchableRegion; 1632 if (mTranslator != null) { 1633 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1634 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1635 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1636 } else { 1637 contentInsets = insets.contentInsets; 1638 visibleInsets = insets.visibleInsets; 1639 touchableRegion = insets.touchableRegion; 1640 } 1641 1642 try { 1643 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1644 contentInsets, visibleInsets, touchableRegion); 1645 } catch (RemoteException e) { 1646 } 1647 } 1648 } 1649 1650 if (mFirst) { 1651 // handle first focus request 1652 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1653 + mView.hasFocus()); 1654 if (mView != null) { 1655 if (!mView.hasFocus()) { 1656 mView.requestFocus(View.FOCUS_FORWARD); 1657 mFocusedView = mRealFocusedView = mView.findFocus(); 1658 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1659 + mFocusedView); 1660 } else { 1661 mRealFocusedView = mView.findFocus(); 1662 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1663 + mRealFocusedView); 1664 } 1665 } 1666 } 1667 1668 mFirst = false; 1669 mWillDrawSoon = false; 1670 mNewSurfaceNeeded = false; 1671 mViewVisibility = viewVisibility; 1672 1673 if (mAttachInfo.mHasWindowFocus) { 1674 final boolean imTarget = WindowManager.LayoutParams 1675 .mayUseInputMethod(mWindowAttributes.flags); 1676 if (imTarget != mLastWasImTarget) { 1677 mLastWasImTarget = imTarget; 1678 InputMethodManager imm = InputMethodManager.peekInstance(); 1679 if (imm != null && imTarget) { 1680 imm.startGettingWindowFocus(mView); 1681 imm.onWindowFocus(mView, mView.findFocus(), 1682 mWindowAttributes.softInputMode, 1683 !mHasHadWindowFocus, mWindowAttributes.flags); 1684 } 1685 } 1686 } 1687 1688 // Remember if we must report the next draw. 1689 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1690 mReportNextDraw = true; 1691 } 1692 1693 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1694 viewVisibility != View.VISIBLE; 1695 1696 if (!cancelDraw && !newSurface) { 1697 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1698 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1699 mPendingTransitions.get(i).startChangingAnimations(); 1700 } 1701 mPendingTransitions.clear(); 1702 } 1703 1704 performDraw(); 1705 } else { 1706 // End any pending transitions on this non-visible window 1707 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1708 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1709 mPendingTransitions.get(i).endChangingAnimations(); 1710 } 1711 mPendingTransitions.clear(); 1712 } 1713 1714 if (viewVisibility == View.VISIBLE) { 1715 // Try again 1716 scheduleTraversals(); 1717 } 1718 } 1719 } 1720 1721 public void requestTransparentRegion(View child) { 1722 // the test below should not fail unless someone is messing with us 1723 checkThread(); 1724 if (mView == child) { 1725 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1726 // Need to make sure we re-evaluate the window attributes next 1727 // time around, to ensure the window has the correct format. 1728 mWindowAttributesChanged = true; 1729 mWindowAttributesChangesFlag = 0; 1730 requestLayout(); 1731 } 1732 } 1733 1734 /** 1735 * Figures out the measure spec for the root view in a window based on it's 1736 * layout params. 1737 * 1738 * @param windowSize 1739 * The available width or height of the window 1740 * 1741 * @param rootDimension 1742 * The layout params for one dimension (width or height) of the 1743 * window. 1744 * 1745 * @return The measure spec to use to measure the root view. 1746 */ 1747 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1748 int measureSpec; 1749 switch (rootDimension) { 1750 1751 case ViewGroup.LayoutParams.MATCH_PARENT: 1752 // Window can't resize. Force root view to be windowSize. 1753 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1754 break; 1755 case ViewGroup.LayoutParams.WRAP_CONTENT: 1756 // Window can resize. Set max size for root view. 1757 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1758 break; 1759 default: 1760 // Window wants to be an exact size. Force root view to be that size. 1761 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1762 break; 1763 } 1764 return measureSpec; 1765 } 1766 1767 int mHardwareYOffset; 1768 int mResizeAlpha; 1769 final Paint mResizePaint = new Paint(); 1770 1771 public void onHardwarePreDraw(HardwareCanvas canvas) { 1772 canvas.translate(0, -mHardwareYOffset); 1773 } 1774 1775 public void onHardwarePostDraw(HardwareCanvas canvas) { 1776 if (mResizeBuffer != null) { 1777 mResizePaint.setAlpha(mResizeAlpha); 1778 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1779 } 1780 } 1781 1782 /** 1783 * @hide 1784 */ 1785 void outputDisplayList(View view) { 1786 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1787 DisplayList displayList = view.getDisplayList(); 1788 if (displayList != null) { 1789 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1790 } 1791 } 1792 } 1793 1794 /** 1795 * @see #PROPERTY_PROFILE_RENDERING 1796 */ 1797 private void profileRendering(boolean enabled) { 1798 if (mProfileRendering) { 1799 mRenderProfilingEnabled = enabled; 1800 if (mRenderProfiler == null) { 1801 mRenderProfiler = new Thread(new Runnable() { 1802 @Override 1803 public void run() { 1804 Log.d(TAG, "Starting profiling thread"); 1805 while (mRenderProfilingEnabled) { 1806 mAttachInfo.mHandler.post(new Runnable() { 1807 @Override 1808 public void run() { 1809 mDirty.set(0, 0, mWidth, mHeight); 1810 scheduleTraversals(); 1811 } 1812 }); 1813 try { 1814 // TODO: This should use vsync when we get an API 1815 Thread.sleep(15); 1816 } catch (InterruptedException e) { 1817 Log.d(TAG, "Exiting profiling thread"); 1818 } 1819 } 1820 } 1821 }, "Rendering Profiler"); 1822 mRenderProfiler.start(); 1823 } else { 1824 mRenderProfiler.interrupt(); 1825 mRenderProfiler = null; 1826 } 1827 } 1828 } 1829 1830 /** 1831 * Called from draw() when DEBUG_FPS is enabled 1832 */ 1833 private void trackFPS() { 1834 // Tracks frames per second drawn. First value in a series of draws may be bogus 1835 // because it down not account for the intervening idle time 1836 long nowTime = System.currentTimeMillis(); 1837 if (mFpsStartTime < 0) { 1838 mFpsStartTime = mFpsPrevTime = nowTime; 1839 mFpsNumFrames = 0; 1840 } else { 1841 ++mFpsNumFrames; 1842 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1843 long frameTime = nowTime - mFpsPrevTime; 1844 long totalTime = nowTime - mFpsStartTime; 1845 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1846 mFpsPrevTime = nowTime; 1847 if (totalTime > 1000) { 1848 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1849 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1850 mFpsStartTime = nowTime; 1851 mFpsNumFrames = 0; 1852 } 1853 } 1854 } 1855 1856 private void performDraw() { 1857 final long drawStartTime; 1858 if (ViewDebug.DEBUG_LATENCY) { 1859 drawStartTime = System.nanoTime(); 1860 if (mLastDrawFinishedTimeNanos != 0) { 1861 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 1862 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 1863 + "ms since the last draw finished."); 1864 } else { 1865 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 1866 } 1867 } 1868 1869 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1870 mFullRedrawNeeded = false; 1871 draw(fullRedrawNeeded); 1872 1873 if (ViewDebug.DEBUG_LATENCY) { 1874 long now = System.nanoTime(); 1875 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 1876 + ((now - drawStartTime) * 0.000001f) 1877 + "ms."); 1878 mLastDrawFinishedTimeNanos = now; 1879 } 1880 1881 if (mReportNextDraw) { 1882 mReportNextDraw = false; 1883 1884 if (LOCAL_LOGV) { 1885 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1886 } 1887 if (mSurfaceHolder != null && mSurface.isValid()) { 1888 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1889 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1890 if (callbacks != null) { 1891 for (SurfaceHolder.Callback c : callbacks) { 1892 if (c instanceof SurfaceHolder.Callback2) { 1893 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1894 mSurfaceHolder); 1895 } 1896 } 1897 } 1898 } 1899 try { 1900 sWindowSession.finishDrawing(mWindow); 1901 } catch (RemoteException e) { 1902 } 1903 } 1904 } 1905 1906 private void draw(boolean fullRedrawNeeded) { 1907 Surface surface = mSurface; 1908 if (surface == null || !surface.isValid()) { 1909 return; 1910 } 1911 1912 if (DEBUG_FPS) { 1913 trackFPS(); 1914 } 1915 1916 if (!sFirstDrawComplete) { 1917 synchronized (sFirstDrawHandlers) { 1918 sFirstDrawComplete = true; 1919 final int count = sFirstDrawHandlers.size(); 1920 for (int i = 0; i< count; i++) { 1921 post(sFirstDrawHandlers.get(i)); 1922 } 1923 } 1924 } 1925 1926 scrollToRectOrFocus(null, false); 1927 1928 if (mAttachInfo.mViewScrollChanged) { 1929 mAttachInfo.mViewScrollChanged = false; 1930 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1931 } 1932 1933 int yoff; 1934 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1935 if (animating) { 1936 yoff = mScroller.getCurrY(); 1937 } else { 1938 yoff = mScrollY; 1939 } 1940 if (mCurScrollY != yoff) { 1941 mCurScrollY = yoff; 1942 fullRedrawNeeded = true; 1943 } 1944 1945 final float appScale = mAttachInfo.mApplicationScale; 1946 final boolean scalingRequired = mAttachInfo.mScalingRequired; 1947 1948 int resizeAlpha = 0; 1949 if (mResizeBuffer != null) { 1950 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1951 if (deltaTime < mResizeBufferDuration) { 1952 float amt = deltaTime/(float) mResizeBufferDuration; 1953 amt = mResizeInterpolator.getInterpolation(amt); 1954 animating = true; 1955 resizeAlpha = 255 - (int)(amt*255); 1956 } else { 1957 disposeResizeBuffer(); 1958 } 1959 } 1960 1961 final Rect dirty = mDirty; 1962 if (mSurfaceHolder != null) { 1963 // The app owns the surface, we won't draw. 1964 dirty.setEmpty(); 1965 if (animating) { 1966 if (mScroller != null) { 1967 mScroller.abortAnimation(); 1968 } 1969 disposeResizeBuffer(); 1970 } 1971 return; 1972 } 1973 1974 if (fullRedrawNeeded) { 1975 mAttachInfo.mIgnoreDirtyState = true; 1976 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1977 } 1978 1979 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1980 Log.v(TAG, "Draw " + mView + "/" 1981 + mWindowAttributes.getTitle() 1982 + ": dirty={" + dirty.left + "," + dirty.top 1983 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1984 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1985 appScale + ", width=" + mWidth + ", height=" + mHeight); 1986 } 1987 1988 if (!dirty.isEmpty() || mIsAnimating) { 1989 if (mAttachInfo.mHardwareRenderer != null 1990 && mAttachInfo.mHardwareRenderer.isEnabled()) { 1991 // Draw with hardware renderer. 1992 mIsAnimating = false; 1993 mHardwareYOffset = yoff; 1994 mResizeAlpha = resizeAlpha; 1995 1996 mCurrentDirty.set(dirty); 1997 mCurrentDirty.union(mPreviousDirty); 1998 mPreviousDirty.set(dirty); 1999 dirty.setEmpty(); 2000 2001 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, 2002 animating ? null : mCurrentDirty)) { 2003 mPreviousDirty.set(0, 0, mWidth, mHeight); 2004 } 2005 } else { 2006 // Draw with software renderer. 2007 Canvas canvas; 2008 try { 2009 int left = dirty.left; 2010 int top = dirty.top; 2011 int right = dirty.right; 2012 int bottom = dirty.bottom; 2013 2014 final long lockCanvasStartTime; 2015 if (ViewDebug.DEBUG_LATENCY) { 2016 lockCanvasStartTime = System.nanoTime(); 2017 } 2018 2019 canvas = mSurface.lockCanvas(dirty); 2020 2021 if (ViewDebug.DEBUG_LATENCY) { 2022 long now = System.nanoTime(); 2023 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2024 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2025 } 2026 2027 if (left != dirty.left || top != dirty.top || right != dirty.right || 2028 bottom != dirty.bottom) { 2029 mAttachInfo.mIgnoreDirtyState = true; 2030 } 2031 2032 // TODO: Do this in native 2033 canvas.setDensity(mDensity); 2034 } catch (Surface.OutOfResourcesException e) { 2035 Log.e(TAG, "OutOfResourcesException locking surface", e); 2036 try { 2037 if (!sWindowSession.outOfMemory(mWindow)) { 2038 Slog.w(TAG, "No processes killed for memory; killing self"); 2039 Process.killProcess(Process.myPid()); 2040 } 2041 } catch (RemoteException ex) { 2042 } 2043 mLayoutRequested = true; // ask wm for a new surface next time. 2044 return; 2045 } catch (IllegalArgumentException e) { 2046 Log.e(TAG, "IllegalArgumentException locking surface", e); 2047 // Don't assume this is due to out of memory, it could be 2048 // something else, and if it is something else then we could 2049 // kill stuff (or ourself) for no reason. 2050 mLayoutRequested = true; // ask wm for a new surface next time. 2051 return; 2052 } 2053 2054 try { 2055 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2056 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2057 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2058 //canvas.drawARGB(255, 255, 0, 0); 2059 } 2060 2061 long startTime = 0L; 2062 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2063 startTime = SystemClock.elapsedRealtime(); 2064 } 2065 2066 // If this bitmap's format includes an alpha channel, we 2067 // need to clear it before drawing so that the child will 2068 // properly re-composite its drawing on a transparent 2069 // background. This automatically respects the clip/dirty region 2070 // or 2071 // If we are applying an offset, we need to clear the area 2072 // where the offset doesn't appear to avoid having garbage 2073 // left in the blank areas. 2074 if (!canvas.isOpaque() || yoff != 0) { 2075 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2076 } 2077 2078 dirty.setEmpty(); 2079 mIsAnimating = false; 2080 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2081 mView.mPrivateFlags |= View.DRAWN; 2082 2083 if (DEBUG_DRAW) { 2084 Context cxt = mView.getContext(); 2085 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2086 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2087 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2088 } 2089 try { 2090 canvas.translate(0, -yoff); 2091 if (mTranslator != null) { 2092 mTranslator.translateCanvas(canvas); 2093 } 2094 canvas.setScreenDensity(scalingRequired 2095 ? DisplayMetrics.DENSITY_DEVICE : 0); 2096 mAttachInfo.mSetIgnoreDirtyState = false; 2097 2098 final long drawStartTime; 2099 if (ViewDebug.DEBUG_LATENCY) { 2100 drawStartTime = System.nanoTime(); 2101 } 2102 2103 mView.draw(canvas); 2104 2105 if (ViewDebug.DEBUG_LATENCY) { 2106 long now = System.nanoTime(); 2107 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2108 + ((now - drawStartTime) * 0.000001f) + "ms"); 2109 } 2110 } finally { 2111 if (!mAttachInfo.mSetIgnoreDirtyState) { 2112 // Only clear the flag if it was not set during the mView.draw() call 2113 mAttachInfo.mIgnoreDirtyState = false; 2114 } 2115 } 2116 2117 if (false && ViewDebug.consistencyCheckEnabled) { 2118 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2119 } 2120 2121 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2122 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2123 } 2124 } finally { 2125 final long unlockCanvasAndPostStartTime; 2126 if (ViewDebug.DEBUG_LATENCY) { 2127 unlockCanvasAndPostStartTime = System.nanoTime(); 2128 } 2129 2130 surface.unlockCanvasAndPost(canvas); 2131 2132 if (ViewDebug.DEBUG_LATENCY) { 2133 long now = System.nanoTime(); 2134 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2135 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2136 } 2137 2138 if (LOCAL_LOGV) { 2139 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2140 } 2141 } 2142 } 2143 } 2144 2145 if (animating) { 2146 mFullRedrawNeeded = true; 2147 scheduleTraversals(); 2148 } 2149 } 2150 2151 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2152 final View.AttachInfo attachInfo = mAttachInfo; 2153 final Rect ci = attachInfo.mContentInsets; 2154 final Rect vi = attachInfo.mVisibleInsets; 2155 int scrollY = 0; 2156 boolean handled = false; 2157 2158 if (vi.left > ci.left || vi.top > ci.top 2159 || vi.right > ci.right || vi.bottom > ci.bottom) { 2160 // We'll assume that we aren't going to change the scroll 2161 // offset, since we want to avoid that unless it is actually 2162 // going to make the focus visible... otherwise we scroll 2163 // all over the place. 2164 scrollY = mScrollY; 2165 // We can be called for two different situations: during a draw, 2166 // to update the scroll position if the focus has changed (in which 2167 // case 'rectangle' is null), or in response to a 2168 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2169 // is non-null and we just want to scroll to whatever that 2170 // rectangle is). 2171 View focus = mRealFocusedView; 2172 2173 // When in touch mode, focus points to the previously focused view, 2174 // which may have been removed from the view hierarchy. The following 2175 // line checks whether the view is still in our hierarchy. 2176 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2177 mRealFocusedView = null; 2178 return false; 2179 } 2180 2181 if (focus != mLastScrolledFocus) { 2182 // If the focus has changed, then ignore any requests to scroll 2183 // to a rectangle; first we want to make sure the entire focus 2184 // view is visible. 2185 rectangle = null; 2186 } 2187 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2188 + " rectangle=" + rectangle + " ci=" + ci 2189 + " vi=" + vi); 2190 if (focus == mLastScrolledFocus && !mScrollMayChange 2191 && rectangle == null) { 2192 // Optimization: if the focus hasn't changed since last 2193 // time, and no layout has happened, then just leave things 2194 // as they are. 2195 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2196 + mScrollY + " vi=" + vi.toShortString()); 2197 } else if (focus != null) { 2198 // We need to determine if the currently focused view is 2199 // within the visible part of the window and, if not, apply 2200 // a pan so it can be seen. 2201 mLastScrolledFocus = focus; 2202 mScrollMayChange = false; 2203 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2204 // Try to find the rectangle from the focus view. 2205 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2206 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2207 + mView.getWidth() + " h=" + mView.getHeight() 2208 + " ci=" + ci.toShortString() 2209 + " vi=" + vi.toShortString()); 2210 if (rectangle == null) { 2211 focus.getFocusedRect(mTempRect); 2212 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2213 + ": focusRect=" + mTempRect.toShortString()); 2214 if (mView instanceof ViewGroup) { 2215 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2216 focus, mTempRect); 2217 } 2218 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2219 "Focus in window: focusRect=" 2220 + mTempRect.toShortString() 2221 + " visRect=" + mVisRect.toShortString()); 2222 } else { 2223 mTempRect.set(rectangle); 2224 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2225 "Request scroll to rect: " 2226 + mTempRect.toShortString() 2227 + " visRect=" + mVisRect.toShortString()); 2228 } 2229 if (mTempRect.intersect(mVisRect)) { 2230 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2231 "Focus window visible rect: " 2232 + mTempRect.toShortString()); 2233 if (mTempRect.height() > 2234 (mView.getHeight()-vi.top-vi.bottom)) { 2235 // If the focus simply is not going to fit, then 2236 // best is probably just to leave things as-is. 2237 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2238 "Too tall; leaving scrollY=" + scrollY); 2239 } else if ((mTempRect.top-scrollY) < vi.top) { 2240 scrollY -= vi.top - (mTempRect.top-scrollY); 2241 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2242 "Top covered; scrollY=" + scrollY); 2243 } else if ((mTempRect.bottom-scrollY) 2244 > (mView.getHeight()-vi.bottom)) { 2245 scrollY += (mTempRect.bottom-scrollY) 2246 - (mView.getHeight()-vi.bottom); 2247 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2248 "Bottom covered; scrollY=" + scrollY); 2249 } 2250 handled = true; 2251 } 2252 } 2253 } 2254 } 2255 2256 if (scrollY != mScrollY) { 2257 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2258 + mScrollY + " , new=" + scrollY); 2259 if (!immediate && mResizeBuffer == null) { 2260 if (mScroller == null) { 2261 mScroller = new Scroller(mView.getContext()); 2262 } 2263 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2264 } else if (mScroller != null) { 2265 mScroller.abortAnimation(); 2266 } 2267 mScrollY = scrollY; 2268 } 2269 2270 return handled; 2271 } 2272 2273 public void requestChildFocus(View child, View focused) { 2274 checkThread(); 2275 if (mFocusedView != focused) { 2276 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2277 scheduleTraversals(); 2278 } 2279 mFocusedView = mRealFocusedView = focused; 2280 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2281 + mFocusedView); 2282 } 2283 2284 public void clearChildFocus(View child) { 2285 checkThread(); 2286 2287 View oldFocus = mFocusedView; 2288 2289 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2290 mFocusedView = mRealFocusedView = null; 2291 if (mView != null && !mView.hasFocus()) { 2292 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2293 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2294 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2295 } 2296 } else if (oldFocus != null) { 2297 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2298 } 2299 } 2300 2301 2302 public void focusableViewAvailable(View v) { 2303 checkThread(); 2304 2305 if (mView != null) { 2306 if (!mView.hasFocus()) { 2307 v.requestFocus(); 2308 } else { 2309 // the one case where will transfer focus away from the current one 2310 // is if the current view is a view group that prefers to give focus 2311 // to its children first AND the view is a descendant of it. 2312 mFocusedView = mView.findFocus(); 2313 boolean descendantsHaveDibsOnFocus = 2314 (mFocusedView instanceof ViewGroup) && 2315 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2316 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2317 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2318 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2319 v.requestFocus(); 2320 } 2321 } 2322 } 2323 } 2324 2325 public void recomputeViewAttributes(View child) { 2326 checkThread(); 2327 if (mView == child) { 2328 mAttachInfo.mRecomputeGlobalAttributes = true; 2329 if (!mWillDrawSoon) { 2330 scheduleTraversals(); 2331 } 2332 } 2333 } 2334 2335 void dispatchDetachedFromWindow() { 2336 if (mView != null && mView.mAttachInfo != null) { 2337 if (mAttachInfo.mHardwareRenderer != null && 2338 mAttachInfo.mHardwareRenderer.isEnabled()) { 2339 mAttachInfo.mHardwareRenderer.validate(); 2340 } 2341 mView.dispatchDetachedFromWindow(); 2342 } 2343 2344 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2345 mAccessibilityManager.removeAccessibilityStateChangeListener( 2346 mAccessibilityInteractionConnectionManager); 2347 removeSendWindowContentChangedCallback(); 2348 2349 mView = null; 2350 mAttachInfo.mRootView = null; 2351 mAttachInfo.mSurface = null; 2352 2353 destroyHardwareRenderer(); 2354 2355 mSurface.release(); 2356 2357 if (mInputQueueCallback != null && mInputQueue != null) { 2358 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2359 mInputQueueCallback = null; 2360 mInputQueue = null; 2361 } else if (mInputEventReceiver != null) { 2362 mInputEventReceiver.dispose(); 2363 mInputEventReceiver = null; 2364 } 2365 try { 2366 sWindowSession.remove(mWindow); 2367 } catch (RemoteException e) { 2368 } 2369 2370 // Dispose the input channel after removing the window so the Window Manager 2371 // doesn't interpret the input channel being closed as an abnormal termination. 2372 if (mInputChannel != null) { 2373 mInputChannel.dispose(); 2374 mInputChannel = null; 2375 } 2376 2377 mChoreographer.removeOnDrawListener(this); 2378 } 2379 2380 void updateConfiguration(Configuration config, boolean force) { 2381 if (DEBUG_CONFIGURATION) Log.v(TAG, 2382 "Applying new config to window " 2383 + mWindowAttributes.getTitle() 2384 + ": " + config); 2385 2386 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2387 if (ci != null) { 2388 config = new Configuration(config); 2389 ci.applyToConfiguration(config); 2390 } 2391 2392 synchronized (sConfigCallbacks) { 2393 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2394 sConfigCallbacks.get(i).onConfigurationChanged(config); 2395 } 2396 } 2397 if (mView != null) { 2398 // At this point the resources have been updated to 2399 // have the most recent config, whatever that is. Use 2400 // the on in them which may be newer. 2401 config = mView.getResources().getConfiguration(); 2402 if (force || mLastConfiguration.diff(config) != 0) { 2403 mLastConfiguration.setTo(config); 2404 mView.dispatchConfigurationChanged(config); 2405 } 2406 } 2407 } 2408 2409 /** 2410 * Return true if child is an ancestor of parent, (or equal to the parent). 2411 */ 2412 private static boolean isViewDescendantOf(View child, View parent) { 2413 if (child == parent) { 2414 return true; 2415 } 2416 2417 final ViewParent theParent = child.getParent(); 2418 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2419 } 2420 2421 private static void forceLayout(View view) { 2422 view.forceLayout(); 2423 if (view instanceof ViewGroup) { 2424 ViewGroup group = (ViewGroup) view; 2425 final int count = group.getChildCount(); 2426 for (int i = 0; i < count; i++) { 2427 forceLayout(group.getChildAt(i)); 2428 } 2429 } 2430 } 2431 2432 public final static int DIE = 1001; 2433 public final static int RESIZED = 1002; 2434 public final static int RESIZED_REPORT = 1003; 2435 public final static int WINDOW_FOCUS_CHANGED = 1004; 2436 public final static int DISPATCH_KEY = 1005; 2437 public final static int DISPATCH_APP_VISIBILITY = 1008; 2438 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2439 public final static int IME_FINISHED_EVENT = 1010; 2440 public final static int DISPATCH_KEY_FROM_IME = 1011; 2441 public final static int FINISH_INPUT_CONNECTION = 1012; 2442 public final static int CHECK_FOCUS = 1013; 2443 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2444 public final static int DISPATCH_DRAG_EVENT = 1015; 2445 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2446 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2447 public final static int DISPATCH_GENERIC_MOTION = 1018; 2448 public final static int UPDATE_CONFIGURATION = 1019; 2449 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2450 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2451 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2452 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2453 public final static int DO_PROCESS_INPUT_EVENTS = 1024; 2454 2455 @Override 2456 public String getMessageName(Message message) { 2457 switch (message.what) { 2458 case DIE: 2459 return "DIE"; 2460 case RESIZED: 2461 return "RESIZED"; 2462 case RESIZED_REPORT: 2463 return "RESIZED_REPORT"; 2464 case WINDOW_FOCUS_CHANGED: 2465 return "WINDOW_FOCUS_CHANGED"; 2466 case DISPATCH_KEY: 2467 return "DISPATCH_KEY"; 2468 case DISPATCH_APP_VISIBILITY: 2469 return "DISPATCH_APP_VISIBILITY"; 2470 case DISPATCH_GET_NEW_SURFACE: 2471 return "DISPATCH_GET_NEW_SURFACE"; 2472 case IME_FINISHED_EVENT: 2473 return "IME_FINISHED_EVENT"; 2474 case DISPATCH_KEY_FROM_IME: 2475 return "DISPATCH_KEY_FROM_IME"; 2476 case FINISH_INPUT_CONNECTION: 2477 return "FINISH_INPUT_CONNECTION"; 2478 case CHECK_FOCUS: 2479 return "CHECK_FOCUS"; 2480 case CLOSE_SYSTEM_DIALOGS: 2481 return "CLOSE_SYSTEM_DIALOGS"; 2482 case DISPATCH_DRAG_EVENT: 2483 return "DISPATCH_DRAG_EVENT"; 2484 case DISPATCH_DRAG_LOCATION_EVENT: 2485 return "DISPATCH_DRAG_LOCATION_EVENT"; 2486 case DISPATCH_SYSTEM_UI_VISIBILITY: 2487 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2488 case DISPATCH_GENERIC_MOTION: 2489 return "DISPATCH_GENERIC_MOTION"; 2490 case UPDATE_CONFIGURATION: 2491 return "UPDATE_CONFIGURATION"; 2492 case DO_PERFORM_ACCESSIBILITY_ACTION: 2493 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2494 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2495 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2496 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2497 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2498 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2499 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2500 case DO_PROCESS_INPUT_EVENTS: 2501 return "DO_PROCESS_INPUT_EVENTS"; 2502 } 2503 return super.getMessageName(message); 2504 } 2505 2506 @Override 2507 public void handleMessage(Message msg) { 2508 switch (msg.what) { 2509 case View.AttachInfo.INVALIDATE_MSG: 2510 ((View) msg.obj).invalidate(); 2511 break; 2512 case View.AttachInfo.INVALIDATE_RECT_MSG: 2513 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2514 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2515 info.release(); 2516 break; 2517 case IME_FINISHED_EVENT: 2518 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2519 break; 2520 case DO_PROCESS_INPUT_EVENTS: 2521 mProcessInputEventsScheduled = false; 2522 doProcessInputEvents(); 2523 break; 2524 case DISPATCH_APP_VISIBILITY: 2525 handleAppVisibility(msg.arg1 != 0); 2526 break; 2527 case DISPATCH_GET_NEW_SURFACE: 2528 handleGetNewSurface(); 2529 break; 2530 case RESIZED: 2531 ResizedInfo ri = (ResizedInfo)msg.obj; 2532 2533 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2534 && mPendingContentInsets.equals(ri.coveredInsets) 2535 && mPendingVisibleInsets.equals(ri.visibleInsets) 2536 && ((ResizedInfo)msg.obj).newConfig == null) { 2537 break; 2538 } 2539 // fall through... 2540 case RESIZED_REPORT: 2541 if (mAdded) { 2542 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2543 if (config != null) { 2544 updateConfiguration(config, false); 2545 } 2546 mWinFrame.left = 0; 2547 mWinFrame.right = msg.arg1; 2548 mWinFrame.top = 0; 2549 mWinFrame.bottom = msg.arg2; 2550 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2551 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2552 if (msg.what == RESIZED_REPORT) { 2553 mReportNextDraw = true; 2554 } 2555 2556 if (mView != null) { 2557 forceLayout(mView); 2558 } 2559 requestLayout(); 2560 } 2561 break; 2562 case WINDOW_FOCUS_CHANGED: { 2563 if (mAdded) { 2564 boolean hasWindowFocus = msg.arg1 != 0; 2565 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2566 2567 profileRendering(hasWindowFocus); 2568 2569 if (hasWindowFocus) { 2570 boolean inTouchMode = msg.arg2 != 0; 2571 ensureTouchModeLocally(inTouchMode); 2572 2573 if (mAttachInfo.mHardwareRenderer != null && 2574 mSurface != null && mSurface.isValid()) { 2575 mFullRedrawNeeded = true; 2576 try { 2577 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2578 mHolder); 2579 } catch (Surface.OutOfResourcesException e) { 2580 Log.e(TAG, "OutOfResourcesException locking surface", e); 2581 try { 2582 if (!sWindowSession.outOfMemory(mWindow)) { 2583 Slog.w(TAG, "No processes killed for memory; killing self"); 2584 Process.killProcess(Process.myPid()); 2585 } 2586 } catch (RemoteException ex) { 2587 } 2588 // Retry in a bit. 2589 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2590 return; 2591 } 2592 } 2593 } 2594 2595 mLastWasImTarget = WindowManager.LayoutParams 2596 .mayUseInputMethod(mWindowAttributes.flags); 2597 2598 InputMethodManager imm = InputMethodManager.peekInstance(); 2599 if (mView != null) { 2600 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2601 imm.startGettingWindowFocus(mView); 2602 } 2603 mAttachInfo.mKeyDispatchState.reset(); 2604 mView.dispatchWindowFocusChanged(hasWindowFocus); 2605 } 2606 2607 // Note: must be done after the focus change callbacks, 2608 // so all of the view state is set up correctly. 2609 if (hasWindowFocus) { 2610 if (imm != null && mLastWasImTarget) { 2611 imm.onWindowFocus(mView, mView.findFocus(), 2612 mWindowAttributes.softInputMode, 2613 !mHasHadWindowFocus, mWindowAttributes.flags); 2614 } 2615 // Clear the forward bit. We can just do this directly, since 2616 // the window manager doesn't care about it. 2617 mWindowAttributes.softInputMode &= 2618 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2619 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2620 .softInputMode &= 2621 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2622 mHasHadWindowFocus = true; 2623 } 2624 2625 if (hasWindowFocus && mView != null) { 2626 sendAccessibilityEvents(); 2627 } 2628 } 2629 } break; 2630 case DIE: 2631 doDie(); 2632 break; 2633 case DISPATCH_KEY: { 2634 KeyEvent event = (KeyEvent)msg.obj; 2635 enqueueInputEvent(event, null, 0, true); 2636 } break; 2637 case DISPATCH_KEY_FROM_IME: { 2638 if (LOCAL_LOGV) Log.v( 2639 TAG, "Dispatching key " 2640 + msg.obj + " from IME to " + mView); 2641 KeyEvent event = (KeyEvent)msg.obj; 2642 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2643 // The IME is trying to say this event is from the 2644 // system! Bad bad bad! 2645 //noinspection UnusedAssignment 2646 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2647 } 2648 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2649 } break; 2650 case FINISH_INPUT_CONNECTION: { 2651 InputMethodManager imm = InputMethodManager.peekInstance(); 2652 if (imm != null) { 2653 imm.reportFinishInputConnection((InputConnection)msg.obj); 2654 } 2655 } break; 2656 case CHECK_FOCUS: { 2657 InputMethodManager imm = InputMethodManager.peekInstance(); 2658 if (imm != null) { 2659 imm.checkFocus(); 2660 } 2661 } break; 2662 case CLOSE_SYSTEM_DIALOGS: { 2663 if (mView != null) { 2664 mView.onCloseSystemDialogs((String)msg.obj); 2665 } 2666 } break; 2667 case DISPATCH_DRAG_EVENT: 2668 case DISPATCH_DRAG_LOCATION_EVENT: { 2669 DragEvent event = (DragEvent)msg.obj; 2670 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2671 handleDragEvent(event); 2672 } break; 2673 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2674 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2675 } break; 2676 case UPDATE_CONFIGURATION: { 2677 Configuration config = (Configuration)msg.obj; 2678 if (config.isOtherSeqNewer(mLastConfiguration)) { 2679 config = mLastConfiguration; 2680 } 2681 updateConfiguration(config, false); 2682 } break; 2683 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2684 if (mView != null) { 2685 getAccessibilityInteractionController() 2686 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2687 } 2688 } break; 2689 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2690 if (mView != null) { 2691 getAccessibilityInteractionController() 2692 .perfromAccessibilityActionUiThread(msg); 2693 } 2694 } break; 2695 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2696 if (mView != null) { 2697 getAccessibilityInteractionController() 2698 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2699 } 2700 } break; 2701 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2702 if (mView != null) { 2703 getAccessibilityInteractionController() 2704 .findAccessibilityNodeInfosByTextUiThread(msg); 2705 } 2706 } break; 2707 } 2708 } 2709 2710 /** 2711 * Something in the current window tells us we need to change the touch mode. For 2712 * example, we are not in touch mode, and the user touches the screen. 2713 * 2714 * If the touch mode has changed, tell the window manager, and handle it locally. 2715 * 2716 * @param inTouchMode Whether we want to be in touch mode. 2717 * @return True if the touch mode changed and focus changed was changed as a result 2718 */ 2719 boolean ensureTouchMode(boolean inTouchMode) { 2720 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2721 + "touch mode is " + mAttachInfo.mInTouchMode); 2722 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2723 2724 // tell the window manager 2725 try { 2726 sWindowSession.setInTouchMode(inTouchMode); 2727 } catch (RemoteException e) { 2728 throw new RuntimeException(e); 2729 } 2730 2731 // handle the change 2732 return ensureTouchModeLocally(inTouchMode); 2733 } 2734 2735 /** 2736 * Ensure that the touch mode for this window is set, and if it is changing, 2737 * take the appropriate action. 2738 * @param inTouchMode Whether we want to be in touch mode. 2739 * @return True if the touch mode changed and focus changed was changed as a result 2740 */ 2741 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2742 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2743 + "touch mode is " + mAttachInfo.mInTouchMode); 2744 2745 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2746 2747 mAttachInfo.mInTouchMode = inTouchMode; 2748 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2749 2750 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2751 } 2752 2753 private boolean enterTouchMode() { 2754 if (mView != null) { 2755 if (mView.hasFocus()) { 2756 // note: not relying on mFocusedView here because this could 2757 // be when the window is first being added, and mFocused isn't 2758 // set yet. 2759 final View focused = mView.findFocus(); 2760 if (focused != null && !focused.isFocusableInTouchMode()) { 2761 2762 final ViewGroup ancestorToTakeFocus = 2763 findAncestorToTakeFocusInTouchMode(focused); 2764 if (ancestorToTakeFocus != null) { 2765 // there is an ancestor that wants focus after its descendants that 2766 // is focusable in touch mode.. give it focus 2767 return ancestorToTakeFocus.requestFocus(); 2768 } else { 2769 // nothing appropriate to have focus in touch mode, clear it out 2770 mView.unFocus(); 2771 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2772 mFocusedView = null; 2773 return true; 2774 } 2775 } 2776 } 2777 } 2778 return false; 2779 } 2780 2781 2782 /** 2783 * Find an ancestor of focused that wants focus after its descendants and is 2784 * focusable in touch mode. 2785 * @param focused The currently focused view. 2786 * @return An appropriate view, or null if no such view exists. 2787 */ 2788 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2789 ViewParent parent = focused.getParent(); 2790 while (parent instanceof ViewGroup) { 2791 final ViewGroup vgParent = (ViewGroup) parent; 2792 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2793 && vgParent.isFocusableInTouchMode()) { 2794 return vgParent; 2795 } 2796 if (vgParent.isRootNamespace()) { 2797 return null; 2798 } else { 2799 parent = vgParent.getParent(); 2800 } 2801 } 2802 return null; 2803 } 2804 2805 private boolean leaveTouchMode() { 2806 if (mView != null) { 2807 if (mView.hasFocus()) { 2808 // i learned the hard way to not trust mFocusedView :) 2809 mFocusedView = mView.findFocus(); 2810 if (!(mFocusedView instanceof ViewGroup)) { 2811 // some view has focus, let it keep it 2812 return false; 2813 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2814 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2815 // some view group has focus, and doesn't prefer its children 2816 // over itself for focus, so let them keep it. 2817 return false; 2818 } 2819 } 2820 2821 // find the best view to give focus to in this brave new non-touch-mode 2822 // world 2823 final View focused = focusSearch(null, View.FOCUS_DOWN); 2824 if (focused != null) { 2825 return focused.requestFocus(View.FOCUS_DOWN); 2826 } 2827 } 2828 return false; 2829 } 2830 2831 private void deliverInputEvent(QueuedInputEvent q) { 2832 if (ViewDebug.DEBUG_LATENCY) { 2833 q.mDeliverTimeNanos = System.nanoTime(); 2834 } 2835 2836 if (q.mEvent instanceof KeyEvent) { 2837 deliverKeyEvent(q); 2838 } else { 2839 final int source = q.mEvent.getSource(); 2840 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2841 deliverPointerEvent(q); 2842 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2843 deliverTrackballEvent(q); 2844 } else { 2845 deliverGenericMotionEvent(q); 2846 } 2847 } 2848 } 2849 2850 private void deliverPointerEvent(QueuedInputEvent q) { 2851 final MotionEvent event = (MotionEvent)q.mEvent; 2852 final boolean isTouchEvent = event.isTouchEvent(); 2853 if (mInputEventConsistencyVerifier != null) { 2854 if (isTouchEvent) { 2855 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2856 } else { 2857 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2858 } 2859 } 2860 2861 // If there is no view, then the event will not be handled. 2862 if (mView == null || !mAdded) { 2863 finishInputEvent(q, false); 2864 return; 2865 } 2866 2867 // Translate the pointer event for compatibility, if needed. 2868 if (mTranslator != null) { 2869 mTranslator.translateEventInScreenToAppWindow(event); 2870 } 2871 2872 // Enter touch mode on down or scroll. 2873 final int action = event.getAction(); 2874 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2875 ensureTouchMode(true); 2876 } 2877 2878 // Offset the scroll position. 2879 if (mCurScrollY != 0) { 2880 event.offsetLocation(0, mCurScrollY); 2881 } 2882 if (MEASURE_LATENCY) { 2883 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2884 } 2885 2886 // Remember the touch position for possible drag-initiation. 2887 if (isTouchEvent) { 2888 mLastTouchPoint.x = event.getRawX(); 2889 mLastTouchPoint.y = event.getRawY(); 2890 } 2891 2892 // Dispatch touch to view hierarchy. 2893 boolean handled = mView.dispatchPointerEvent(event); 2894 if (MEASURE_LATENCY) { 2895 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2896 } 2897 if (handled) { 2898 finishInputEvent(q, true); 2899 return; 2900 } 2901 2902 // Pointer event was unhandled. 2903 finishInputEvent(q, false); 2904 } 2905 2906 private void deliverTrackballEvent(QueuedInputEvent q) { 2907 final MotionEvent event = (MotionEvent)q.mEvent; 2908 if (mInputEventConsistencyVerifier != null) { 2909 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2910 } 2911 2912 // If there is no view, then the event will not be handled. 2913 if (mView == null || !mAdded) { 2914 finishInputEvent(q, false); 2915 return; 2916 } 2917 2918 // Deliver the trackball event to the view. 2919 if (mView.dispatchTrackballEvent(event)) { 2920 // If we reach this, we delivered a trackball event to mView and 2921 // mView consumed it. Because we will not translate the trackball 2922 // event into a key event, touch mode will not exit, so we exit 2923 // touch mode here. 2924 ensureTouchMode(false); 2925 2926 finishInputEvent(q, true); 2927 mLastTrackballTime = Integer.MIN_VALUE; 2928 return; 2929 } 2930 2931 // Translate the trackball event into DPAD keys and try to deliver those. 2932 final TrackballAxis x = mTrackballAxisX; 2933 final TrackballAxis y = mTrackballAxisY; 2934 2935 long curTime = SystemClock.uptimeMillis(); 2936 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2937 // It has been too long since the last movement, 2938 // so restart at the beginning. 2939 x.reset(0); 2940 y.reset(0); 2941 mLastTrackballTime = curTime; 2942 } 2943 2944 final int action = event.getAction(); 2945 final int metaState = event.getMetaState(); 2946 switch (action) { 2947 case MotionEvent.ACTION_DOWN: 2948 x.reset(2); 2949 y.reset(2); 2950 enqueueInputEvent(new KeyEvent(curTime, curTime, 2951 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2952 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2953 InputDevice.SOURCE_KEYBOARD)); 2954 break; 2955 case MotionEvent.ACTION_UP: 2956 x.reset(2); 2957 y.reset(2); 2958 enqueueInputEvent(new KeyEvent(curTime, curTime, 2959 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2960 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2961 InputDevice.SOURCE_KEYBOARD)); 2962 break; 2963 } 2964 2965 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2966 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2967 + " move=" + event.getX() 2968 + " / Y=" + y.position + " step=" 2969 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2970 + " move=" + event.getY()); 2971 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2972 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2973 2974 // Generate DPAD events based on the trackball movement. 2975 // We pick the axis that has moved the most as the direction of 2976 // the DPAD. When we generate DPAD events for one axis, then the 2977 // other axis is reset -- we don't want to perform DPAD jumps due 2978 // to slight movements in the trackball when making major movements 2979 // along the other axis. 2980 int keycode = 0; 2981 int movement = 0; 2982 float accel = 1; 2983 if (xOff > yOff) { 2984 movement = x.generate((2/event.getXPrecision())); 2985 if (movement != 0) { 2986 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2987 : KeyEvent.KEYCODE_DPAD_LEFT; 2988 accel = x.acceleration; 2989 y.reset(2); 2990 } 2991 } else if (yOff > 0) { 2992 movement = y.generate((2/event.getYPrecision())); 2993 if (movement != 0) { 2994 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2995 : KeyEvent.KEYCODE_DPAD_UP; 2996 accel = y.acceleration; 2997 x.reset(2); 2998 } 2999 } 3000 3001 if (keycode != 0) { 3002 if (movement < 0) movement = -movement; 3003 int accelMovement = (int)(movement * accel); 3004 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3005 + " accelMovement=" + accelMovement 3006 + " accel=" + accel); 3007 if (accelMovement > movement) { 3008 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3009 + keycode); 3010 movement--; 3011 int repeatCount = accelMovement - movement; 3012 enqueueInputEvent(new KeyEvent(curTime, curTime, 3013 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3014 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3015 InputDevice.SOURCE_KEYBOARD)); 3016 } 3017 while (movement > 0) { 3018 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3019 + keycode); 3020 movement--; 3021 curTime = SystemClock.uptimeMillis(); 3022 enqueueInputEvent(new KeyEvent(curTime, curTime, 3023 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3024 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3025 InputDevice.SOURCE_KEYBOARD)); 3026 enqueueInputEvent(new KeyEvent(curTime, curTime, 3027 KeyEvent.ACTION_UP, keycode, 0, metaState, 3028 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3029 InputDevice.SOURCE_KEYBOARD)); 3030 } 3031 mLastTrackballTime = curTime; 3032 } 3033 3034 // Unfortunately we can't tell whether the application consumed the keys, so 3035 // we always consider the trackball event handled. 3036 finishInputEvent(q, true); 3037 } 3038 3039 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3040 final MotionEvent event = (MotionEvent)q.mEvent; 3041 if (mInputEventConsistencyVerifier != null) { 3042 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3043 } 3044 3045 final int source = event.getSource(); 3046 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3047 3048 // If there is no view, then the event will not be handled. 3049 if (mView == null || !mAdded) { 3050 if (isJoystick) { 3051 updateJoystickDirection(event, false); 3052 } 3053 finishInputEvent(q, false); 3054 return; 3055 } 3056 3057 // Deliver the event to the view. 3058 if (mView.dispatchGenericMotionEvent(event)) { 3059 if (isJoystick) { 3060 updateJoystickDirection(event, false); 3061 } 3062 finishInputEvent(q, true); 3063 return; 3064 } 3065 3066 if (isJoystick) { 3067 // Translate the joystick event into DPAD keys and try to deliver those. 3068 updateJoystickDirection(event, true); 3069 finishInputEvent(q, true); 3070 } else { 3071 finishInputEvent(q, false); 3072 } 3073 } 3074 3075 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3076 final long time = event.getEventTime(); 3077 final int metaState = event.getMetaState(); 3078 final int deviceId = event.getDeviceId(); 3079 final int source = event.getSource(); 3080 3081 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3082 if (xDirection == 0) { 3083 xDirection = joystickAxisValueToDirection(event.getX()); 3084 } 3085 3086 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3087 if (yDirection == 0) { 3088 yDirection = joystickAxisValueToDirection(event.getY()); 3089 } 3090 3091 if (xDirection != mLastJoystickXDirection) { 3092 if (mLastJoystickXKeyCode != 0) { 3093 enqueueInputEvent(new KeyEvent(time, time, 3094 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3095 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3096 mLastJoystickXKeyCode = 0; 3097 } 3098 3099 mLastJoystickXDirection = xDirection; 3100 3101 if (xDirection != 0 && synthesizeNewKeys) { 3102 mLastJoystickXKeyCode = xDirection > 0 3103 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3104 enqueueInputEvent(new KeyEvent(time, time, 3105 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3106 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3107 } 3108 } 3109 3110 if (yDirection != mLastJoystickYDirection) { 3111 if (mLastJoystickYKeyCode != 0) { 3112 enqueueInputEvent(new KeyEvent(time, time, 3113 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3114 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3115 mLastJoystickYKeyCode = 0; 3116 } 3117 3118 mLastJoystickYDirection = yDirection; 3119 3120 if (yDirection != 0 && synthesizeNewKeys) { 3121 mLastJoystickYKeyCode = yDirection > 0 3122 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3123 enqueueInputEvent(new KeyEvent(time, time, 3124 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3125 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3126 } 3127 } 3128 } 3129 3130 private static int joystickAxisValueToDirection(float value) { 3131 if (value >= 0.5f) { 3132 return 1; 3133 } else if (value <= -0.5f) { 3134 return -1; 3135 } else { 3136 return 0; 3137 } 3138 } 3139 3140 /** 3141 * Returns true if the key is used for keyboard navigation. 3142 * @param keyEvent The key event. 3143 * @return True if the key is used for keyboard navigation. 3144 */ 3145 private static boolean isNavigationKey(KeyEvent keyEvent) { 3146 switch (keyEvent.getKeyCode()) { 3147 case KeyEvent.KEYCODE_DPAD_LEFT: 3148 case KeyEvent.KEYCODE_DPAD_RIGHT: 3149 case KeyEvent.KEYCODE_DPAD_UP: 3150 case KeyEvent.KEYCODE_DPAD_DOWN: 3151 case KeyEvent.KEYCODE_DPAD_CENTER: 3152 case KeyEvent.KEYCODE_PAGE_UP: 3153 case KeyEvent.KEYCODE_PAGE_DOWN: 3154 case KeyEvent.KEYCODE_MOVE_HOME: 3155 case KeyEvent.KEYCODE_MOVE_END: 3156 case KeyEvent.KEYCODE_TAB: 3157 case KeyEvent.KEYCODE_SPACE: 3158 case KeyEvent.KEYCODE_ENTER: 3159 return true; 3160 } 3161 return false; 3162 } 3163 3164 /** 3165 * Returns true if the key is used for typing. 3166 * @param keyEvent The key event. 3167 * @return True if the key is used for typing. 3168 */ 3169 private static boolean isTypingKey(KeyEvent keyEvent) { 3170 return keyEvent.getUnicodeChar() > 0; 3171 } 3172 3173 /** 3174 * See if the key event means we should leave touch mode (and leave touch mode if so). 3175 * @param event The key event. 3176 * @return Whether this key event should be consumed (meaning the act of 3177 * leaving touch mode alone is considered the event). 3178 */ 3179 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3180 // Only relevant in touch mode. 3181 if (!mAttachInfo.mInTouchMode) { 3182 return false; 3183 } 3184 3185 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3186 final int action = event.getAction(); 3187 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3188 return false; 3189 } 3190 3191 // Don't leave touch mode if the IME told us not to. 3192 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3193 return false; 3194 } 3195 3196 // If the key can be used for keyboard navigation then leave touch mode 3197 // and select a focused view if needed (in ensureTouchMode). 3198 // When a new focused view is selected, we consume the navigation key because 3199 // navigation doesn't make much sense unless a view already has focus so 3200 // the key's purpose is to set focus. 3201 if (isNavigationKey(event)) { 3202 return ensureTouchMode(false); 3203 } 3204 3205 // If the key can be used for typing then leave touch mode 3206 // and select a focused view if needed (in ensureTouchMode). 3207 // Always allow the view to process the typing key. 3208 if (isTypingKey(event)) { 3209 ensureTouchMode(false); 3210 return false; 3211 } 3212 3213 return false; 3214 } 3215 3216 private void deliverKeyEvent(QueuedInputEvent q) { 3217 final KeyEvent event = (KeyEvent)q.mEvent; 3218 if (mInputEventConsistencyVerifier != null) { 3219 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3220 } 3221 3222 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3223 // If there is no view, then the event will not be handled. 3224 if (mView == null || !mAdded) { 3225 finishInputEvent(q, false); 3226 return; 3227 } 3228 3229 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3230 3231 // Perform predispatching before the IME. 3232 if (mView.dispatchKeyEventPreIme(event)) { 3233 finishInputEvent(q, true); 3234 return; 3235 } 3236 3237 // Dispatch to the IME before propagating down the view hierarchy. 3238 // The IME will eventually call back into handleImeFinishedEvent. 3239 if (mLastWasImTarget) { 3240 InputMethodManager imm = InputMethodManager.peekInstance(); 3241 if (imm != null) { 3242 final int seq = event.getSequenceNumber(); 3243 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3244 + seq + " event=" + event); 3245 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3246 return; 3247 } 3248 } 3249 } 3250 3251 // Not dispatching to IME, continue with post IME actions. 3252 deliverKeyEventPostIme(q); 3253 } 3254 3255 void handleImeFinishedEvent(int seq, boolean handled) { 3256 final QueuedInputEvent q = mCurrentInputEvent; 3257 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3258 final KeyEvent event = (KeyEvent)q.mEvent; 3259 if (DEBUG_IMF) { 3260 Log.v(TAG, "IME finished event: seq=" + seq 3261 + " handled=" + handled + " event=" + event); 3262 } 3263 if (handled) { 3264 finishInputEvent(q, true); 3265 } else { 3266 deliverKeyEventPostIme(q); 3267 } 3268 } else { 3269 if (DEBUG_IMF) { 3270 Log.v(TAG, "IME finished event: seq=" + seq 3271 + " handled=" + handled + ", event not found!"); 3272 } 3273 } 3274 } 3275 3276 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3277 final KeyEvent event = (KeyEvent)q.mEvent; 3278 if (ViewDebug.DEBUG_LATENCY) { 3279 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3280 } 3281 3282 // If the view went away, then the event will not be handled. 3283 if (mView == null || !mAdded) { 3284 finishInputEvent(q, false); 3285 return; 3286 } 3287 3288 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3289 if (checkForLeavingTouchModeAndConsume(event)) { 3290 finishInputEvent(q, true); 3291 return; 3292 } 3293 3294 // Make sure the fallback event policy sees all keys that will be delivered to the 3295 // view hierarchy. 3296 mFallbackEventHandler.preDispatchKeyEvent(event); 3297 3298 // Deliver the key to the view hierarchy. 3299 if (mView.dispatchKeyEvent(event)) { 3300 finishInputEvent(q, true); 3301 return; 3302 } 3303 3304 // If the Control modifier is held, try to interpret the key as a shortcut. 3305 if (event.getAction() == KeyEvent.ACTION_DOWN 3306 && event.isCtrlPressed() 3307 && event.getRepeatCount() == 0 3308 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3309 if (mView.dispatchKeyShortcutEvent(event)) { 3310 finishInputEvent(q, true); 3311 return; 3312 } 3313 } 3314 3315 // Apply the fallback event policy. 3316 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3317 finishInputEvent(q, true); 3318 return; 3319 } 3320 3321 // Handle automatic focus changes. 3322 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3323 int direction = 0; 3324 switch (event.getKeyCode()) { 3325 case KeyEvent.KEYCODE_DPAD_LEFT: 3326 if (event.hasNoModifiers()) { 3327 direction = View.FOCUS_LEFT; 3328 } 3329 break; 3330 case KeyEvent.KEYCODE_DPAD_RIGHT: 3331 if (event.hasNoModifiers()) { 3332 direction = View.FOCUS_RIGHT; 3333 } 3334 break; 3335 case KeyEvent.KEYCODE_DPAD_UP: 3336 if (event.hasNoModifiers()) { 3337 direction = View.FOCUS_UP; 3338 } 3339 break; 3340 case KeyEvent.KEYCODE_DPAD_DOWN: 3341 if (event.hasNoModifiers()) { 3342 direction = View.FOCUS_DOWN; 3343 } 3344 break; 3345 case KeyEvent.KEYCODE_TAB: 3346 if (event.hasNoModifiers()) { 3347 direction = View.FOCUS_FORWARD; 3348 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3349 direction = View.FOCUS_BACKWARD; 3350 } 3351 break; 3352 } 3353 3354 if (direction != 0) { 3355 View focused = mView != null ? mView.findFocus() : null; 3356 if (focused != null) { 3357 View v = focused.focusSearch(direction); 3358 if (v != null && v != focused) { 3359 // do the math the get the interesting rect 3360 // of previous focused into the coord system of 3361 // newly focused view 3362 focused.getFocusedRect(mTempRect); 3363 if (mView instanceof ViewGroup) { 3364 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3365 focused, mTempRect); 3366 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3367 v, mTempRect); 3368 } 3369 if (v.requestFocus(direction, mTempRect)) { 3370 playSoundEffect( 3371 SoundEffectConstants.getContantForFocusDirection(direction)); 3372 finishInputEvent(q, true); 3373 return; 3374 } 3375 } 3376 3377 // Give the focused view a last chance to handle the dpad key. 3378 if (mView.dispatchUnhandledMove(focused, direction)) { 3379 finishInputEvent(q, true); 3380 return; 3381 } 3382 } 3383 } 3384 } 3385 3386 // Key was unhandled. 3387 finishInputEvent(q, false); 3388 } 3389 3390 /* drag/drop */ 3391 void setLocalDragState(Object obj) { 3392 mLocalDragState = obj; 3393 } 3394 3395 private void handleDragEvent(DragEvent event) { 3396 // From the root, only drag start/end/location are dispatched. entered/exited 3397 // are determined and dispatched by the viewgroup hierarchy, who then report 3398 // that back here for ultimate reporting back to the framework. 3399 if (mView != null && mAdded) { 3400 final int what = event.mAction; 3401 3402 if (what == DragEvent.ACTION_DRAG_EXITED) { 3403 // A direct EXITED event means that the window manager knows we've just crossed 3404 // a window boundary, so the current drag target within this one must have 3405 // just been exited. Send it the usual notifications and then we're done 3406 // for now. 3407 mView.dispatchDragEvent(event); 3408 } else { 3409 // Cache the drag description when the operation starts, then fill it in 3410 // on subsequent calls as a convenience 3411 if (what == DragEvent.ACTION_DRAG_STARTED) { 3412 mCurrentDragView = null; // Start the current-recipient tracking 3413 mDragDescription = event.mClipDescription; 3414 } else { 3415 event.mClipDescription = mDragDescription; 3416 } 3417 3418 // For events with a [screen] location, translate into window coordinates 3419 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3420 mDragPoint.set(event.mX, event.mY); 3421 if (mTranslator != null) { 3422 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3423 } 3424 3425 if (mCurScrollY != 0) { 3426 mDragPoint.offset(0, mCurScrollY); 3427 } 3428 3429 event.mX = mDragPoint.x; 3430 event.mY = mDragPoint.y; 3431 } 3432 3433 // Remember who the current drag target is pre-dispatch 3434 final View prevDragView = mCurrentDragView; 3435 3436 // Now dispatch the drag/drop event 3437 boolean result = mView.dispatchDragEvent(event); 3438 3439 // If we changed apparent drag target, tell the OS about it 3440 if (prevDragView != mCurrentDragView) { 3441 try { 3442 if (prevDragView != null) { 3443 sWindowSession.dragRecipientExited(mWindow); 3444 } 3445 if (mCurrentDragView != null) { 3446 sWindowSession.dragRecipientEntered(mWindow); 3447 } 3448 } catch (RemoteException e) { 3449 Slog.e(TAG, "Unable to note drag target change"); 3450 } 3451 } 3452 3453 // Report the drop result when we're done 3454 if (what == DragEvent.ACTION_DROP) { 3455 mDragDescription = null; 3456 try { 3457 Log.i(TAG, "Reporting drop result: " + result); 3458 sWindowSession.reportDropResult(mWindow, result); 3459 } catch (RemoteException e) { 3460 Log.e(TAG, "Unable to report drop result"); 3461 } 3462 } 3463 3464 // When the drag operation ends, release any local state object 3465 // that may have been in use 3466 if (what == DragEvent.ACTION_DRAG_ENDED) { 3467 setLocalDragState(null); 3468 } 3469 } 3470 } 3471 event.recycle(); 3472 } 3473 3474 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3475 if (mSeq != args.seq) { 3476 // The sequence has changed, so we need to update our value and make 3477 // sure to do a traversal afterward so the window manager is given our 3478 // most recent data. 3479 mSeq = args.seq; 3480 mAttachInfo.mForceReportNewAttributes = true; 3481 scheduleTraversals(); 3482 } 3483 if (mView == null) return; 3484 if (args.localChanges != 0) { 3485 if (mAttachInfo != null) { 3486 mAttachInfo.mSystemUiVisibility = 3487 (mAttachInfo.mSystemUiVisibility & ~args.localChanges) | 3488 (args.localValue & args.localChanges); 3489 mAttachInfo.mRecomputeGlobalAttributes = true; 3490 } 3491 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3492 scheduleTraversals(); 3493 } 3494 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3495 } 3496 3497 public void getLastTouchPoint(Point outLocation) { 3498 outLocation.x = (int) mLastTouchPoint.x; 3499 outLocation.y = (int) mLastTouchPoint.y; 3500 } 3501 3502 public void setDragFocus(View newDragTarget) { 3503 if (mCurrentDragView != newDragTarget) { 3504 mCurrentDragView = newDragTarget; 3505 } 3506 } 3507 3508 private AudioManager getAudioManager() { 3509 if (mView == null) { 3510 throw new IllegalStateException("getAudioManager called when there is no mView"); 3511 } 3512 if (mAudioManager == null) { 3513 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3514 } 3515 return mAudioManager; 3516 } 3517 3518 public AccessibilityInteractionController getAccessibilityInteractionController() { 3519 if (mView == null) { 3520 throw new IllegalStateException("getAccessibilityInteractionController" 3521 + " called when there is no mView"); 3522 } 3523 if (mAccessibilityInteractionController == null) { 3524 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3525 } 3526 return mAccessibilityInteractionController; 3527 } 3528 3529 public AccessibilityPrefetchStrategy getAccessibilityPrefetchStrategy() { 3530 if (mView == null) { 3531 throw new IllegalStateException("getAccessibilityPrefetchStrategy" 3532 + " called when there is no mView"); 3533 } 3534 if (mAccessibilityPrefetchStrategy == null) { 3535 mAccessibilityPrefetchStrategy = new AccessibilityPrefetchStrategy(); 3536 } 3537 return mAccessibilityPrefetchStrategy; 3538 } 3539 3540 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3541 boolean insetsPending) throws RemoteException { 3542 3543 float appScale = mAttachInfo.mApplicationScale; 3544 boolean restore = false; 3545 if (params != null && mTranslator != null) { 3546 restore = true; 3547 params.backup(); 3548 mTranslator.translateWindowLayout(params); 3549 } 3550 if (params != null) { 3551 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3552 } 3553 mPendingConfiguration.seq = 0; 3554 //Log.d(TAG, ">>>>>> CALLING relayout"); 3555 if (params != null && mOrigWindowType != params.type) { 3556 // For compatibility with old apps, don't crash here. 3557 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3558 Slog.w(TAG, "Window type can not be changed after " 3559 + "the window is added; ignoring change of " + mView); 3560 params.type = mOrigWindowType; 3561 } 3562 } 3563 int relayoutResult = sWindowSession.relayout( 3564 mWindow, mSeq, params, 3565 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3566 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3567 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3568 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3569 mPendingConfiguration, mSurface); 3570 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3571 if (restore) { 3572 params.restore(); 3573 } 3574 3575 if (mTranslator != null) { 3576 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3577 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3578 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3579 } 3580 return relayoutResult; 3581 } 3582 3583 /** 3584 * {@inheritDoc} 3585 */ 3586 public void playSoundEffect(int effectId) { 3587 checkThread(); 3588 3589 try { 3590 final AudioManager audioManager = getAudioManager(); 3591 3592 switch (effectId) { 3593 case SoundEffectConstants.CLICK: 3594 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3595 return; 3596 case SoundEffectConstants.NAVIGATION_DOWN: 3597 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3598 return; 3599 case SoundEffectConstants.NAVIGATION_LEFT: 3600 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3601 return; 3602 case SoundEffectConstants.NAVIGATION_RIGHT: 3603 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3604 return; 3605 case SoundEffectConstants.NAVIGATION_UP: 3606 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3607 return; 3608 default: 3609 throw new IllegalArgumentException("unknown effect id " + effectId + 3610 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3611 } 3612 } catch (IllegalStateException e) { 3613 // Exception thrown by getAudioManager() when mView is null 3614 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3615 e.printStackTrace(); 3616 } 3617 } 3618 3619 /** 3620 * {@inheritDoc} 3621 */ 3622 public boolean performHapticFeedback(int effectId, boolean always) { 3623 try { 3624 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3625 } catch (RemoteException e) { 3626 return false; 3627 } 3628 } 3629 3630 /** 3631 * {@inheritDoc} 3632 */ 3633 public View focusSearch(View focused, int direction) { 3634 checkThread(); 3635 if (!(mView instanceof ViewGroup)) { 3636 return null; 3637 } 3638 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3639 } 3640 3641 public void debug() { 3642 mView.debug(); 3643 } 3644 3645 public void dumpGfxInfo(int[] info) { 3646 if (mView != null) { 3647 getGfxInfo(mView, info); 3648 } else { 3649 info[0] = info[1] = 0; 3650 } 3651 } 3652 3653 private void getGfxInfo(View view, int[] info) { 3654 DisplayList displayList = view.mDisplayList; 3655 info[0]++; 3656 if (displayList != null) { 3657 info[1] += displayList.getSize(); 3658 } 3659 3660 if (view instanceof ViewGroup) { 3661 ViewGroup group = (ViewGroup) view; 3662 3663 int count = group.getChildCount(); 3664 for (int i = 0; i < count; i++) { 3665 getGfxInfo(group.getChildAt(i), info); 3666 } 3667 } 3668 } 3669 3670 public void die(boolean immediate) { 3671 if (immediate) { 3672 doDie(); 3673 } else { 3674 sendEmptyMessage(DIE); 3675 } 3676 } 3677 3678 void doDie() { 3679 checkThread(); 3680 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3681 synchronized (this) { 3682 if (mAdded) { 3683 mAdded = false; 3684 dispatchDetachedFromWindow(); 3685 } 3686 3687 if (mAdded && !mFirst) { 3688 destroyHardwareRenderer(); 3689 3690 int viewVisibility = mView.getVisibility(); 3691 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3692 if (mWindowAttributesChanged || viewVisibilityChanged) { 3693 // If layout params have been changed, first give them 3694 // to the window manager to make sure it has the correct 3695 // animation info. 3696 try { 3697 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3698 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3699 sWindowSession.finishDrawing(mWindow); 3700 } 3701 } catch (RemoteException e) { 3702 } 3703 } 3704 3705 mSurface.release(); 3706 } 3707 } 3708 } 3709 3710 public void requestUpdateConfiguration(Configuration config) { 3711 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3712 sendMessage(msg); 3713 } 3714 3715 private void destroyHardwareRenderer() { 3716 if (mAttachInfo.mHardwareRenderer != null) { 3717 mAttachInfo.mHardwareRenderer.destroy(true); 3718 mAttachInfo.mHardwareRenderer = null; 3719 mAttachInfo.mHardwareAccelerated = false; 3720 } 3721 } 3722 3723 void dispatchImeFinishedEvent(int seq, boolean handled) { 3724 Message msg = obtainMessage(IME_FINISHED_EVENT); 3725 msg.arg1 = seq; 3726 msg.arg2 = handled ? 1 : 0; 3727 sendMessage(msg); 3728 } 3729 3730 public void dispatchResized(int w, int h, Rect coveredInsets, 3731 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3732 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3733 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3734 + " visibleInsets=" + visibleInsets.toShortString() 3735 + " reportDraw=" + reportDraw); 3736 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3737 if (mTranslator != null) { 3738 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3739 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3740 w *= mTranslator.applicationInvertedScale; 3741 h *= mTranslator.applicationInvertedScale; 3742 } 3743 msg.arg1 = w; 3744 msg.arg2 = h; 3745 ResizedInfo ri = new ResizedInfo(); 3746 ri.coveredInsets = new Rect(coveredInsets); 3747 ri.visibleInsets = new Rect(visibleInsets); 3748 ri.newConfig = newConfig; 3749 msg.obj = ri; 3750 sendMessage(msg); 3751 } 3752 3753 /** 3754 * Represents a pending input event that is waiting in a queue. 3755 * 3756 * Input events are processed in serial order by the timestamp specified by 3757 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 3758 * one input event to the application at a time and waits for the application 3759 * to finish handling it before delivering the next one. 3760 * 3761 * However, because the application or IME can synthesize and inject multiple 3762 * key events at a time without going through the input dispatcher, we end up 3763 * needing a queue on the application's side. 3764 */ 3765 private static final class QueuedInputEvent { 3766 public static final int FLAG_DELIVER_POST_IME = 1; 3767 3768 public QueuedInputEvent mNext; 3769 3770 public InputEvent mEvent; 3771 public InputEventReceiver mReceiver; 3772 public int mFlags; 3773 3774 // Used for latency calculations. 3775 public long mReceiveTimeNanos; 3776 public long mDeliverTimeNanos; 3777 public long mDeliverPostImeTimeNanos; 3778 } 3779 3780 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3781 InputEventReceiver receiver, int flags) { 3782 QueuedInputEvent q = mQueuedInputEventPool; 3783 if (q != null) { 3784 mQueuedInputEventPoolSize -= 1; 3785 mQueuedInputEventPool = q.mNext; 3786 q.mNext = null; 3787 } else { 3788 q = new QueuedInputEvent(); 3789 } 3790 3791 q.mEvent = event; 3792 q.mReceiver = receiver; 3793 q.mFlags = flags; 3794 return q; 3795 } 3796 3797 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3798 q.mEvent = null; 3799 q.mReceiver = null; 3800 3801 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3802 mQueuedInputEventPoolSize += 1; 3803 q.mNext = mQueuedInputEventPool; 3804 mQueuedInputEventPool = q; 3805 } 3806 } 3807 3808 void enqueueInputEvent(InputEvent event) { 3809 enqueueInputEvent(event, null, 0, false); 3810 } 3811 3812 void enqueueInputEvent(InputEvent event, 3813 InputEventReceiver receiver, int flags, boolean processImmediately) { 3814 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3815 3816 if (ViewDebug.DEBUG_LATENCY) { 3817 q.mReceiveTimeNanos = System.nanoTime(); 3818 q.mDeliverTimeNanos = 0; 3819 q.mDeliverPostImeTimeNanos = 0; 3820 } 3821 3822 // Always enqueue the input event in order, regardless of its time stamp. 3823 // We do this because the application or the IME may inject key events 3824 // in response to touch events and we want to ensure that the injected keys 3825 // are processed in the order they were received and we cannot trust that 3826 // the time stamp of injected events are monotonic. 3827 QueuedInputEvent last = mFirstPendingInputEvent; 3828 if (last == null) { 3829 mFirstPendingInputEvent = q; 3830 } else { 3831 while (last.mNext != null) { 3832 last = last.mNext; 3833 } 3834 last.mNext = q; 3835 } 3836 3837 if (processImmediately) { 3838 doProcessInputEvents(); 3839 } else { 3840 scheduleProcessInputEvents(); 3841 } 3842 } 3843 3844 private void scheduleProcessInputEvents() { 3845 if (!mProcessInputEventsScheduled) { 3846 mProcessInputEventsScheduled = true; 3847 sendEmptyMessage(DO_PROCESS_INPUT_EVENTS); 3848 } 3849 } 3850 3851 private void doProcessInputEvents() { 3852 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3853 QueuedInputEvent q = mFirstPendingInputEvent; 3854 mFirstPendingInputEvent = q.mNext; 3855 q.mNext = null; 3856 mCurrentInputEvent = q; 3857 deliverInputEvent(q); 3858 } 3859 3860 // We are done processing all input events that we can process right now 3861 // so we can clear the pending flag immediately. 3862 if (mProcessInputEventsScheduled) { 3863 mProcessInputEventsScheduled = false; 3864 removeMessages(DO_PROCESS_INPUT_EVENTS); 3865 } 3866 } 3867 3868 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3869 if (q != mCurrentInputEvent) { 3870 throw new IllegalStateException("finished input event out of order"); 3871 } 3872 3873 if (ViewDebug.DEBUG_LATENCY) { 3874 final long now = System.nanoTime(); 3875 final long eventTime = q.mEvent.getEventTimeNano(); 3876 final StringBuilder msg = new StringBuilder(); 3877 msg.append("Spent "); 3878 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3879 msg.append("ms processing "); 3880 if (q.mEvent instanceof KeyEvent) { 3881 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3882 msg.append("key event, action="); 3883 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3884 } else { 3885 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3886 msg.append("motion event, action="); 3887 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3888 msg.append(", historySize="); 3889 msg.append(motionEvent.getHistorySize()); 3890 } 3891 msg.append(", handled="); 3892 msg.append(handled); 3893 msg.append(", received at +"); 3894 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3895 if (q.mDeliverTimeNanos != 0) { 3896 msg.append("ms, delivered at +"); 3897 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3898 } 3899 if (q.mDeliverPostImeTimeNanos != 0) { 3900 msg.append("ms, delivered post IME at +"); 3901 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3902 } 3903 msg.append("ms, finished at +"); 3904 msg.append((now - eventTime) * 0.000001f); 3905 msg.append("ms."); 3906 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3907 } 3908 3909 if (q.mReceiver != null) { 3910 q.mReceiver.finishInputEvent(q.mEvent, handled); 3911 } else { 3912 q.mEvent.recycleIfNeededAfterDispatch(); 3913 } 3914 3915 recycleQueuedInputEvent(q); 3916 3917 mCurrentInputEvent = null; 3918 if (mFirstPendingInputEvent != null) { 3919 scheduleProcessInputEvents(); 3920 } 3921 } 3922 3923 final class WindowInputEventReceiver extends InputEventReceiver { 3924 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3925 super(inputChannel, looper); 3926 } 3927 3928 @Override 3929 public void onInputEvent(InputEvent event) { 3930 enqueueInputEvent(event, this, 0, true); 3931 } 3932 3933 @Override 3934 public void onBatchedInputEventPending() { 3935 mChoreographer.scheduleDraw(); 3936 } 3937 } 3938 WindowInputEventReceiver mInputEventReceiver; 3939 3940 public void dispatchKey(KeyEvent event) { 3941 Message msg = obtainMessage(DISPATCH_KEY, event); 3942 sendMessage(msg); 3943 } 3944 3945 public void dispatchAppVisibility(boolean visible) { 3946 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3947 msg.arg1 = visible ? 1 : 0; 3948 sendMessage(msg); 3949 } 3950 3951 public void dispatchGetNewSurface() { 3952 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3953 sendMessage(msg); 3954 } 3955 3956 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3957 Message msg = Message.obtain(); 3958 msg.what = WINDOW_FOCUS_CHANGED; 3959 msg.arg1 = hasFocus ? 1 : 0; 3960 msg.arg2 = inTouchMode ? 1 : 0; 3961 sendMessage(msg); 3962 } 3963 3964 public void dispatchCloseSystemDialogs(String reason) { 3965 Message msg = Message.obtain(); 3966 msg.what = CLOSE_SYSTEM_DIALOGS; 3967 msg.obj = reason; 3968 sendMessage(msg); 3969 } 3970 3971 public void dispatchDragEvent(DragEvent event) { 3972 final int what; 3973 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3974 what = DISPATCH_DRAG_LOCATION_EVENT; 3975 removeMessages(what); 3976 } else { 3977 what = DISPATCH_DRAG_EVENT; 3978 } 3979 Message msg = obtainMessage(what, event); 3980 sendMessage(msg); 3981 } 3982 3983 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3984 int localValue, int localChanges) { 3985 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3986 args.seq = seq; 3987 args.globalVisibility = globalVisibility; 3988 args.localValue = localValue; 3989 args.localChanges = localChanges; 3990 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3991 } 3992 3993 /** 3994 * The window is getting focus so if there is anything focused/selected 3995 * send an {@link AccessibilityEvent} to announce that. 3996 */ 3997 private void sendAccessibilityEvents() { 3998 if (!mAccessibilityManager.isEnabled()) { 3999 return; 4000 } 4001 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 4002 View focusedView = mView.findFocus(); 4003 if (focusedView != null && focusedView != mView) { 4004 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 4005 } 4006 } 4007 4008 /** 4009 * Post a callback to send a 4010 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4011 * This event is send at most once every 4012 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4013 */ 4014 private void postSendWindowContentChangedCallback() { 4015 if (mSendWindowContentChangedAccessibilityEvent == null) { 4016 mSendWindowContentChangedAccessibilityEvent = 4017 new SendWindowContentChangedAccessibilityEvent(); 4018 } 4019 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 4020 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 4021 postDelayed(mSendWindowContentChangedAccessibilityEvent, 4022 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4023 } 4024 } 4025 4026 /** 4027 * Remove a posted callback to send a 4028 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4029 */ 4030 private void removeSendWindowContentChangedCallback() { 4031 if (mSendWindowContentChangedAccessibilityEvent != null) { 4032 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4033 } 4034 } 4035 4036 public boolean showContextMenuForChild(View originalView) { 4037 return false; 4038 } 4039 4040 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4041 return null; 4042 } 4043 4044 public void createContextMenu(ContextMenu menu) { 4045 } 4046 4047 public void childDrawableStateChanged(View child) { 4048 } 4049 4050 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4051 if (mView == null) { 4052 return false; 4053 } 4054 getAccessibilityPrefetchStrategy().onAccessibilityEvent(event); 4055 mAccessibilityManager.sendAccessibilityEvent(event); 4056 return true; 4057 } 4058 4059 void checkThread() { 4060 if (mThread != Thread.currentThread()) { 4061 throw new CalledFromWrongThreadException( 4062 "Only the original thread that created a view hierarchy can touch its views."); 4063 } 4064 } 4065 4066 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4067 // ViewAncestor never intercepts touch event, so this can be a no-op 4068 } 4069 4070 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4071 boolean immediate) { 4072 return scrollToRectOrFocus(rectangle, immediate); 4073 } 4074 4075 class TakenSurfaceHolder extends BaseSurfaceHolder { 4076 @Override 4077 public boolean onAllowLockCanvas() { 4078 return mDrawingAllowed; 4079 } 4080 4081 @Override 4082 public void onRelayoutContainer() { 4083 // Not currently interesting -- from changing between fixed and layout size. 4084 } 4085 4086 public void setFormat(int format) { 4087 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4088 } 4089 4090 public void setType(int type) { 4091 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4092 } 4093 4094 @Override 4095 public void onUpdateSurface() { 4096 // We take care of format and type changes on our own. 4097 throw new IllegalStateException("Shouldn't be here"); 4098 } 4099 4100 public boolean isCreating() { 4101 return mIsCreating; 4102 } 4103 4104 @Override 4105 public void setFixedSize(int width, int height) { 4106 throw new UnsupportedOperationException( 4107 "Currently only support sizing from layout"); 4108 } 4109 4110 public void setKeepScreenOn(boolean screenOn) { 4111 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4112 } 4113 } 4114 4115 static class InputMethodCallback extends IInputMethodCallback.Stub { 4116 private WeakReference<ViewRootImpl> mViewAncestor; 4117 4118 public InputMethodCallback(ViewRootImpl viewAncestor) { 4119 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4120 } 4121 4122 public void finishedEvent(int seq, boolean handled) { 4123 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4124 if (viewAncestor != null) { 4125 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4126 } 4127 } 4128 4129 public void sessionCreated(IInputMethodSession session) { 4130 // Stub -- not for use in the client. 4131 } 4132 } 4133 4134 static class W extends IWindow.Stub { 4135 private final WeakReference<ViewRootImpl> mViewAncestor; 4136 4137 W(ViewRootImpl viewAncestor) { 4138 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4139 } 4140 4141 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4142 boolean reportDraw, Configuration newConfig) { 4143 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4144 if (viewAncestor != null) { 4145 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4146 newConfig); 4147 } 4148 } 4149 4150 public void dispatchAppVisibility(boolean visible) { 4151 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4152 if (viewAncestor != null) { 4153 viewAncestor.dispatchAppVisibility(visible); 4154 } 4155 } 4156 4157 public void dispatchGetNewSurface() { 4158 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4159 if (viewAncestor != null) { 4160 viewAncestor.dispatchGetNewSurface(); 4161 } 4162 } 4163 4164 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4165 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4166 if (viewAncestor != null) { 4167 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4168 } 4169 } 4170 4171 private static int checkCallingPermission(String permission) { 4172 try { 4173 return ActivityManagerNative.getDefault().checkPermission( 4174 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4175 } catch (RemoteException e) { 4176 return PackageManager.PERMISSION_DENIED; 4177 } 4178 } 4179 4180 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4181 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4182 if (viewAncestor != null) { 4183 final View view = viewAncestor.mView; 4184 if (view != null) { 4185 if (checkCallingPermission(Manifest.permission.DUMP) != 4186 PackageManager.PERMISSION_GRANTED) { 4187 throw new SecurityException("Insufficient permissions to invoke" 4188 + " executeCommand() from pid=" + Binder.getCallingPid() 4189 + ", uid=" + Binder.getCallingUid()); 4190 } 4191 4192 OutputStream clientStream = null; 4193 try { 4194 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4195 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4196 } catch (IOException e) { 4197 e.printStackTrace(); 4198 } finally { 4199 if (clientStream != null) { 4200 try { 4201 clientStream.close(); 4202 } catch (IOException e) { 4203 e.printStackTrace(); 4204 } 4205 } 4206 } 4207 } 4208 } 4209 } 4210 4211 public void closeSystemDialogs(String reason) { 4212 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4213 if (viewAncestor != null) { 4214 viewAncestor.dispatchCloseSystemDialogs(reason); 4215 } 4216 } 4217 4218 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4219 boolean sync) { 4220 if (sync) { 4221 try { 4222 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4223 } catch (RemoteException e) { 4224 } 4225 } 4226 } 4227 4228 public void dispatchWallpaperCommand(String action, int x, int y, 4229 int z, Bundle extras, boolean sync) { 4230 if (sync) { 4231 try { 4232 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4233 } catch (RemoteException e) { 4234 } 4235 } 4236 } 4237 4238 /* Drag/drop */ 4239 public void dispatchDragEvent(DragEvent event) { 4240 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4241 if (viewAncestor != null) { 4242 viewAncestor.dispatchDragEvent(event); 4243 } 4244 } 4245 4246 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4247 int localValue, int localChanges) { 4248 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4249 if (viewAncestor != null) { 4250 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4251 localValue, localChanges); 4252 } 4253 } 4254 } 4255 4256 /** 4257 * Maintains state information for a single trackball axis, generating 4258 * discrete (DPAD) movements based on raw trackball motion. 4259 */ 4260 static final class TrackballAxis { 4261 /** 4262 * The maximum amount of acceleration we will apply. 4263 */ 4264 static final float MAX_ACCELERATION = 20; 4265 4266 /** 4267 * The maximum amount of time (in milliseconds) between events in order 4268 * for us to consider the user to be doing fast trackball movements, 4269 * and thus apply an acceleration. 4270 */ 4271 static final long FAST_MOVE_TIME = 150; 4272 4273 /** 4274 * Scaling factor to the time (in milliseconds) between events to how 4275 * much to multiple/divide the current acceleration. When movement 4276 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4277 * FAST_MOVE_TIME it divides it. 4278 */ 4279 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4280 4281 float position; 4282 float absPosition; 4283 float acceleration = 1; 4284 long lastMoveTime = 0; 4285 int step; 4286 int dir; 4287 int nonAccelMovement; 4288 4289 void reset(int _step) { 4290 position = 0; 4291 acceleration = 1; 4292 lastMoveTime = 0; 4293 step = _step; 4294 dir = 0; 4295 } 4296 4297 /** 4298 * Add trackball movement into the state. If the direction of movement 4299 * has been reversed, the state is reset before adding the 4300 * movement (so that you don't have to compensate for any previously 4301 * collected movement before see the result of the movement in the 4302 * new direction). 4303 * 4304 * @return Returns the absolute value of the amount of movement 4305 * collected so far. 4306 */ 4307 float collect(float off, long time, String axis) { 4308 long normTime; 4309 if (off > 0) { 4310 normTime = (long)(off * FAST_MOVE_TIME); 4311 if (dir < 0) { 4312 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4313 position = 0; 4314 step = 0; 4315 acceleration = 1; 4316 lastMoveTime = 0; 4317 } 4318 dir = 1; 4319 } else if (off < 0) { 4320 normTime = (long)((-off) * FAST_MOVE_TIME); 4321 if (dir > 0) { 4322 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4323 position = 0; 4324 step = 0; 4325 acceleration = 1; 4326 lastMoveTime = 0; 4327 } 4328 dir = -1; 4329 } else { 4330 normTime = 0; 4331 } 4332 4333 // The number of milliseconds between each movement that is 4334 // considered "normal" and will not result in any acceleration 4335 // or deceleration, scaled by the offset we have here. 4336 if (normTime > 0) { 4337 long delta = time - lastMoveTime; 4338 lastMoveTime = time; 4339 float acc = acceleration; 4340 if (delta < normTime) { 4341 // The user is scrolling rapidly, so increase acceleration. 4342 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4343 if (scale > 1) acc *= scale; 4344 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4345 + off + " normTime=" + normTime + " delta=" + delta 4346 + " scale=" + scale + " acc=" + acc); 4347 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4348 } else { 4349 // The user is scrolling slowly, so decrease acceleration. 4350 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4351 if (scale > 1) acc /= scale; 4352 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4353 + off + " normTime=" + normTime + " delta=" + delta 4354 + " scale=" + scale + " acc=" + acc); 4355 acceleration = acc > 1 ? acc : 1; 4356 } 4357 } 4358 position += off; 4359 return (absPosition = Math.abs(position)); 4360 } 4361 4362 /** 4363 * Generate the number of discrete movement events appropriate for 4364 * the currently collected trackball movement. 4365 * 4366 * @param precision The minimum movement required to generate the 4367 * first discrete movement. 4368 * 4369 * @return Returns the number of discrete movements, either positive 4370 * or negative, or 0 if there is not enough trackball movement yet 4371 * for a discrete movement. 4372 */ 4373 int generate(float precision) { 4374 int movement = 0; 4375 nonAccelMovement = 0; 4376 do { 4377 final int dir = position >= 0 ? 1 : -1; 4378 switch (step) { 4379 // If we are going to execute the first step, then we want 4380 // to do this as soon as possible instead of waiting for 4381 // a full movement, in order to make things look responsive. 4382 case 0: 4383 if (absPosition < precision) { 4384 return movement; 4385 } 4386 movement += dir; 4387 nonAccelMovement += dir; 4388 step = 1; 4389 break; 4390 // If we have generated the first movement, then we need 4391 // to wait for the second complete trackball motion before 4392 // generating the second discrete movement. 4393 case 1: 4394 if (absPosition < 2) { 4395 return movement; 4396 } 4397 movement += dir; 4398 nonAccelMovement += dir; 4399 position += dir > 0 ? -2 : 2; 4400 absPosition = Math.abs(position); 4401 step = 2; 4402 break; 4403 // After the first two, we generate discrete movements 4404 // consistently with the trackball, applying an acceleration 4405 // if the trackball is moving quickly. This is a simple 4406 // acceleration on top of what we already compute based 4407 // on how quickly the wheel is being turned, to apply 4408 // a longer increasing acceleration to continuous movement 4409 // in one direction. 4410 default: 4411 if (absPosition < 1) { 4412 return movement; 4413 } 4414 movement += dir; 4415 position += dir >= 0 ? -1 : 1; 4416 absPosition = Math.abs(position); 4417 float acc = acceleration; 4418 acc *= 1.1f; 4419 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4420 break; 4421 } 4422 } while (true); 4423 } 4424 } 4425 4426 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4427 public CalledFromWrongThreadException(String msg) { 4428 super(msg); 4429 } 4430 } 4431 4432 private SurfaceHolder mHolder = new SurfaceHolder() { 4433 // we only need a SurfaceHolder for opengl. it would be nice 4434 // to implement everything else though, especially the callback 4435 // support (opengl doesn't make use of it right now, but eventually 4436 // will). 4437 public Surface getSurface() { 4438 return mSurface; 4439 } 4440 4441 public boolean isCreating() { 4442 return false; 4443 } 4444 4445 public void addCallback(Callback callback) { 4446 } 4447 4448 public void removeCallback(Callback callback) { 4449 } 4450 4451 public void setFixedSize(int width, int height) { 4452 } 4453 4454 public void setSizeFromLayout() { 4455 } 4456 4457 public void setFormat(int format) { 4458 } 4459 4460 public void setType(int type) { 4461 } 4462 4463 public void setKeepScreenOn(boolean screenOn) { 4464 } 4465 4466 public Canvas lockCanvas() { 4467 return null; 4468 } 4469 4470 public Canvas lockCanvas(Rect dirty) { 4471 return null; 4472 } 4473 4474 public void unlockCanvasAndPost(Canvas canvas) { 4475 } 4476 public Rect getSurfaceFrame() { 4477 return null; 4478 } 4479 }; 4480 4481 static RunQueue getRunQueue() { 4482 RunQueue rq = sRunQueues.get(); 4483 if (rq != null) { 4484 return rq; 4485 } 4486 rq = new RunQueue(); 4487 sRunQueues.set(rq); 4488 return rq; 4489 } 4490 4491 /** 4492 * @hide 4493 */ 4494 static final class RunQueue { 4495 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4496 4497 void post(Runnable action) { 4498 postDelayed(action, 0); 4499 } 4500 4501 void postDelayed(Runnable action, long delayMillis) { 4502 HandlerAction handlerAction = new HandlerAction(); 4503 handlerAction.action = action; 4504 handlerAction.delay = delayMillis; 4505 4506 synchronized (mActions) { 4507 mActions.add(handlerAction); 4508 } 4509 } 4510 4511 void removeCallbacks(Runnable action) { 4512 final HandlerAction handlerAction = new HandlerAction(); 4513 handlerAction.action = action; 4514 4515 synchronized (mActions) { 4516 final ArrayList<HandlerAction> actions = mActions; 4517 4518 while (actions.remove(handlerAction)) { 4519 // Keep going 4520 } 4521 } 4522 } 4523 4524 void executeActions(Handler handler) { 4525 synchronized (mActions) { 4526 final ArrayList<HandlerAction> actions = mActions; 4527 final int count = actions.size(); 4528 4529 for (int i = 0; i < count; i++) { 4530 final HandlerAction handlerAction = actions.get(i); 4531 handler.postDelayed(handlerAction.action, handlerAction.delay); 4532 } 4533 4534 actions.clear(); 4535 } 4536 } 4537 4538 private static class HandlerAction { 4539 Runnable action; 4540 long delay; 4541 4542 @Override 4543 public boolean equals(Object o) { 4544 if (this == o) return true; 4545 if (o == null || getClass() != o.getClass()) return false; 4546 4547 HandlerAction that = (HandlerAction) o; 4548 return !(action != null ? !action.equals(that.action) : that.action != null); 4549 4550 } 4551 4552 @Override 4553 public int hashCode() { 4554 int result = action != null ? action.hashCode() : 0; 4555 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4556 return result; 4557 } 4558 } 4559 } 4560 4561 /** 4562 * Class for managing the accessibility interaction connection 4563 * based on the global accessibility state. 4564 */ 4565 final class AccessibilityInteractionConnectionManager 4566 implements AccessibilityStateChangeListener { 4567 public void onAccessibilityStateChanged(boolean enabled) { 4568 if (enabled) { 4569 ensureConnection(); 4570 } else { 4571 ensureNoConnection(); 4572 } 4573 } 4574 4575 public void ensureConnection() { 4576 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4577 if (!registered) { 4578 mAttachInfo.mAccessibilityWindowId = 4579 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4580 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4581 } 4582 } 4583 4584 public void ensureNoConnection() { 4585 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4586 if (registered) { 4587 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4588 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4589 } 4590 } 4591 } 4592 4593 /** 4594 * This class is an interface this ViewAncestor provides to the 4595 * AccessibilityManagerService to the latter can interact with 4596 * the view hierarchy in this ViewAncestor. 4597 */ 4598 static final class AccessibilityInteractionConnection 4599 extends IAccessibilityInteractionConnection.Stub { 4600 private final WeakReference<ViewRootImpl> mViewRootImpl; 4601 4602 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4603 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4604 } 4605 4606 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4607 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4608 int interrogatingPid, long interrogatingTid) { 4609 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4610 if (viewRootImpl != null && viewRootImpl.mView != null) { 4611 viewRootImpl.getAccessibilityInteractionController() 4612 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4613 interactionId, callback, interrogatingPid, interrogatingTid); 4614 } else { 4615 // We cannot make the call and notify the caller so it does not wait. 4616 try { 4617 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4618 } catch (RemoteException re) { 4619 /* best effort - ignore */ 4620 } 4621 } 4622 } 4623 4624 public void performAccessibilityAction(long accessibilityNodeId, int action, 4625 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4626 int interogatingPid, long interrogatingTid) { 4627 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4628 if (viewRootImpl != null && viewRootImpl.mView != null) { 4629 viewRootImpl.getAccessibilityInteractionController() 4630 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4631 interactionId, callback, interogatingPid, interrogatingTid); 4632 } else { 4633 // We cannot make the call and notify the caller so it does not 4634 try { 4635 callback.setPerformAccessibilityActionResult(false, interactionId); 4636 } catch (RemoteException re) { 4637 /* best effort - ignore */ 4638 } 4639 } 4640 } 4641 4642 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 4643 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4644 int interrogatingPid, long interrogatingTid) { 4645 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4646 if (viewRootImpl != null && viewRootImpl.mView != null) { 4647 viewRootImpl.getAccessibilityInteractionController() 4648 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 4649 interactionId, callback, interrogatingPid, interrogatingTid); 4650 } else { 4651 // We cannot make the call and notify the caller so it does not 4652 try { 4653 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 4654 } catch (RemoteException re) { 4655 /* best effort - ignore */ 4656 } 4657 } 4658 } 4659 4660 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 4661 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4662 int interrogatingPid, long interrogatingTid) { 4663 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4664 if (viewRootImpl != null && viewRootImpl.mView != null) { 4665 viewRootImpl.getAccessibilityInteractionController() 4666 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 4667 interactionId, callback, interrogatingPid, interrogatingTid); 4668 } else { 4669 // We cannot make the call and notify the caller so it does not 4670 try { 4671 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4672 } catch (RemoteException re) { 4673 /* best effort - ignore */ 4674 } 4675 } 4676 } 4677 } 4678 4679 /** 4680 * Class for managing accessibility interactions initiated from the system 4681 * and targeting the view hierarchy. A *ClientThread method is to be 4682 * called from the interaction connection this ViewAncestor gives the 4683 * system to talk to it and a corresponding *UiThread method that is executed 4684 * on the UI thread. 4685 */ 4686 final class AccessibilityInteractionController { 4687 private static final int POOL_SIZE = 5; 4688 4689 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4690 new ArrayList<AccessibilityNodeInfo>(); 4691 4692 // Reusable poolable arguments for interacting with the view hierarchy 4693 // to fit more arguments than Message and to avoid sharing objects between 4694 // two messages since several threads can send messages concurrently. 4695 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4696 new PoolableManager<SomeArgs>() { 4697 public SomeArgs newInstance() { 4698 return new SomeArgs(); 4699 } 4700 4701 public void onAcquired(SomeArgs info) { 4702 /* do nothing */ 4703 } 4704 4705 public void onReleased(SomeArgs info) { 4706 info.clear(); 4707 } 4708 }, POOL_SIZE) 4709 ); 4710 4711 public class SomeArgs implements Poolable<SomeArgs> { 4712 private SomeArgs mNext; 4713 private boolean mIsPooled; 4714 4715 public Object arg1; 4716 public Object arg2; 4717 public int argi1; 4718 public int argi2; 4719 public int argi3; 4720 4721 public SomeArgs getNextPoolable() { 4722 return mNext; 4723 } 4724 4725 public boolean isPooled() { 4726 return mIsPooled; 4727 } 4728 4729 public void setNextPoolable(SomeArgs args) { 4730 mNext = args; 4731 } 4732 4733 public void setPooled(boolean isPooled) { 4734 mIsPooled = isPooled; 4735 } 4736 4737 private void clear() { 4738 arg1 = null; 4739 arg2 = null; 4740 argi1 = 0; 4741 argi2 = 0; 4742 argi3 = 0; 4743 } 4744 } 4745 4746 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4747 long accessibilityNodeId, int interactionId, 4748 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4749 long interrogatingTid) { 4750 Message message = Message.obtain(); 4751 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4752 message.arg1 = interrogatingPid; 4753 SomeArgs args = mPool.acquire(); 4754 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4755 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4756 args.argi3 = interactionId; 4757 args.arg1 = callback; 4758 message.obj = args; 4759 // If the interrogation is performed by the same thread as the main UI 4760 // thread in this process, set the message as a static reference so 4761 // after this call completes the same thread but in the interrogating 4762 // client can handle the message to generate the result. 4763 if (interrogatingPid == Process.myPid() 4764 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4765 message.setTarget(ViewRootImpl.this); 4766 AccessibilityInteractionClient.getInstanceForThread( 4767 interrogatingTid).setSameThreadMessage(message); 4768 } else { 4769 sendMessage(message); 4770 } 4771 } 4772 4773 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4774 SomeArgs args = (SomeArgs) message.obj; 4775 final int interrogatingPid = message.arg1; 4776 final int accessibilityViewId = args.argi1; 4777 final int virtualDescendantId = args.argi2; 4778 final int interactionId = args.argi3; 4779 final IAccessibilityInteractionConnectionCallback callback = 4780 (IAccessibilityInteractionConnectionCallback) args.arg1; 4781 mPool.release(args); 4782 List<AccessibilityNodeInfo> infos = mTempAccessibilityNodeInfoList; 4783 infos.clear(); 4784 try { 4785 View target = findViewByAccessibilityId(accessibilityViewId); 4786 if (target != null && target.getVisibility() == View.VISIBLE) { 4787 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4788 if (provider != null) { 4789 infos.add(provider.createAccessibilityNodeInfo(virtualDescendantId)); 4790 } else if (virtualDescendantId == View.NO_ID) { 4791 getAccessibilityPrefetchStrategy().prefetchAccessibilityNodeInfos( 4792 interrogatingPid, target, infos); 4793 } 4794 } 4795 } finally { 4796 try { 4797 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4798 infos.clear(); 4799 } catch (RemoteException re) { 4800 /* ignore - the other side will time out */ 4801 } 4802 } 4803 } 4804 4805 public void findAccessibilityNodeInfoByViewIdClientThread(long accessibilityNodeId, 4806 int viewId, int interactionId, IAccessibilityInteractionConnectionCallback callback, 4807 int interrogatingPid, long interrogatingTid) { 4808 Message message = Message.obtain(); 4809 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4810 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4811 SomeArgs args = mPool.acquire(); 4812 args.argi1 = viewId; 4813 args.argi2 = interactionId; 4814 args.arg1 = callback; 4815 message.obj = args; 4816 // If the interrogation is performed by the same thread as the main UI 4817 // thread in this process, set the message as a static reference so 4818 // after this call completes the same thread but in the interrogating 4819 // client can handle the message to generate the result. 4820 if (interrogatingPid == Process.myPid() 4821 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4822 message.setTarget(ViewRootImpl.this); 4823 AccessibilityInteractionClient.getInstanceForThread( 4824 interrogatingTid).setSameThreadMessage(message); 4825 } else { 4826 sendMessage(message); 4827 } 4828 } 4829 4830 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4831 final int accessibilityViewId = message.arg1; 4832 SomeArgs args = (SomeArgs) message.obj; 4833 final int viewId = args.argi1; 4834 final int interactionId = args.argi2; 4835 final IAccessibilityInteractionConnectionCallback callback = 4836 (IAccessibilityInteractionConnectionCallback) args.arg1; 4837 mPool.release(args); 4838 AccessibilityNodeInfo info = null; 4839 try { 4840 View root = null; 4841 if (accessibilityViewId != View.NO_ID) { 4842 root = findViewByAccessibilityId(accessibilityViewId); 4843 } else { 4844 root = ViewRootImpl.this.mView; 4845 } 4846 if (root != null) { 4847 View target = root.findViewById(viewId); 4848 if (target != null && target.getVisibility() == View.VISIBLE) { 4849 info = target.createAccessibilityNodeInfo(); 4850 } 4851 } 4852 } finally { 4853 try { 4854 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4855 } catch (RemoteException re) { 4856 /* ignore - the other side will time out */ 4857 } 4858 } 4859 } 4860 4861 public void findAccessibilityNodeInfosByTextClientThread(long accessibilityNodeId, 4862 String text, int interactionId, 4863 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4864 long interrogatingTid) { 4865 Message message = Message.obtain(); 4866 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4867 SomeArgs args = mPool.acquire(); 4868 args.arg1 = text; 4869 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4870 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4871 args.argi3 = interactionId; 4872 args.arg2 = callback; 4873 message.obj = args; 4874 // If the interrogation is performed by the same thread as the main UI 4875 // thread in this process, set the message as a static reference so 4876 // after this call completes the same thread but in the interrogating 4877 // client can handle the message to generate the result. 4878 if (interrogatingPid == Process.myPid() 4879 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4880 message.setTarget(ViewRootImpl.this); 4881 AccessibilityInteractionClient.getInstanceForThread( 4882 interrogatingTid).setSameThreadMessage(message); 4883 } else { 4884 sendMessage(message); 4885 } 4886 } 4887 4888 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4889 SomeArgs args = (SomeArgs) message.obj; 4890 final String text = (String) args.arg1; 4891 final int accessibilityViewId = args.argi1; 4892 final int virtualDescendantId = args.argi2; 4893 final int interactionId = args.argi3; 4894 final IAccessibilityInteractionConnectionCallback callback = 4895 (IAccessibilityInteractionConnectionCallback) args.arg2; 4896 mPool.release(args); 4897 List<AccessibilityNodeInfo> infos = null; 4898 try { 4899 View target; 4900 if (accessibilityViewId != View.NO_ID) { 4901 target = findViewByAccessibilityId(accessibilityViewId); 4902 } else { 4903 target = ViewRootImpl.this.mView; 4904 } 4905 if (target != null && target.getVisibility() == View.VISIBLE) { 4906 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4907 if (provider != null) { 4908 infos = provider.findAccessibilityNodeInfosByText(text, 4909 virtualDescendantId); 4910 } else if (virtualDescendantId == View.NO_ID) { 4911 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4912 foundViews.clear(); 4913 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4914 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4915 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4916 if (!foundViews.isEmpty()) { 4917 infos = mTempAccessibilityNodeInfoList; 4918 infos.clear(); 4919 final int viewCount = foundViews.size(); 4920 for (int i = 0; i < viewCount; i++) { 4921 View foundView = foundViews.get(i); 4922 if (foundView.getVisibility() == View.VISIBLE) { 4923 provider = foundView.getAccessibilityNodeProvider(); 4924 if (provider != null) { 4925 List<AccessibilityNodeInfo> infosFromProvider = 4926 provider.findAccessibilityNodeInfosByText(text, 4927 virtualDescendantId); 4928 if (infosFromProvider != null) { 4929 infos.addAll(infosFromProvider); 4930 } 4931 } else { 4932 infos.add(foundView.createAccessibilityNodeInfo()); 4933 } 4934 } 4935 } 4936 } 4937 } 4938 } 4939 } finally { 4940 try { 4941 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4942 } catch (RemoteException re) { 4943 /* ignore - the other side will time out */ 4944 } 4945 } 4946 } 4947 4948 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4949 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4950 int interogatingPid, long interrogatingTid) { 4951 Message message = Message.obtain(); 4952 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4953 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4954 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4955 SomeArgs args = mPool.acquire(); 4956 args.argi1 = action; 4957 args.argi2 = interactionId; 4958 args.arg1 = callback; 4959 message.obj = args; 4960 // If the interrogation is performed by the same thread as the main UI 4961 // thread in this process, set the message as a static reference so 4962 // after this call completes the same thread but in the interrogating 4963 // client can handle the message to generate the result. 4964 if (interogatingPid == Process.myPid() 4965 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4966 message.setTarget(ViewRootImpl.this); 4967 AccessibilityInteractionClient.getInstanceForThread( 4968 interrogatingTid).setSameThreadMessage(message); 4969 } else { 4970 sendMessage(message); 4971 } 4972 } 4973 4974 public void perfromAccessibilityActionUiThread(Message message) { 4975 final int accessibilityViewId = message.arg1; 4976 final int virtualDescendantId = message.arg2; 4977 SomeArgs args = (SomeArgs) message.obj; 4978 final int action = args.argi1; 4979 final int interactionId = args.argi2; 4980 final IAccessibilityInteractionConnectionCallback callback = 4981 (IAccessibilityInteractionConnectionCallback) args.arg1; 4982 mPool.release(args); 4983 boolean succeeded = false; 4984 try { 4985 View target = findViewByAccessibilityId(accessibilityViewId); 4986 if (target != null && target.getVisibility() == View.VISIBLE) { 4987 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4988 if (provider != null) { 4989 succeeded = provider.performAccessibilityAction(action, 4990 virtualDescendantId); 4991 } else if (virtualDescendantId == View.NO_ID) { 4992 switch (action) { 4993 case AccessibilityNodeInfo.ACTION_FOCUS: { 4994 if (!target.hasFocus()) { 4995 // Get out of touch mode since accessibility 4996 // wants to move focus around. 4997 ensureTouchMode(false); 4998 succeeded = target.requestFocus(); 4999 } 5000 } break; 5001 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 5002 if (target.hasFocus()) { 5003 target.clearFocus(); 5004 succeeded = !target.isFocused(); 5005 } 5006 } break; 5007 case AccessibilityNodeInfo.ACTION_SELECT: { 5008 if (!target.isSelected()) { 5009 target.setSelected(true); 5010 succeeded = target.isSelected(); 5011 } 5012 } break; 5013 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 5014 if (target.isSelected()) { 5015 target.setSelected(false); 5016 succeeded = !target.isSelected(); 5017 } 5018 } break; 5019 } 5020 } 5021 } 5022 } finally { 5023 try { 5024 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 5025 } catch (RemoteException re) { 5026 /* ignore - the other side will time out */ 5027 } 5028 } 5029 } 5030 5031 private View findViewByAccessibilityId(int accessibilityId) { 5032 View root = ViewRootImpl.this.mView; 5033 if (root == null) { 5034 return null; 5035 } 5036 View foundView = root.findViewByAccessibilityId(accessibilityId); 5037 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 5038 return null; 5039 } 5040 return foundView; 5041 } 5042 } 5043 5044 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5045 public volatile boolean mIsPending; 5046 5047 public void run() { 5048 if (mView != null) { 5049 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5050 mIsPending = false; 5051 } 5052 } 5053 } 5054 5055 /** 5056 * This class encapsulates a prefetching strategy for the accessibility APIs for 5057 * querying window content.It is responsible to prefetch a batch of 5058 * AccessibilityNodeInfos in addition to the one for a requested node. It caches 5059 * the ids of the prefeteched nodes such that they are fetched only once. 5060 */ 5061 class AccessibilityPrefetchStrategy { 5062 private static final int MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE = 100; 5063 5064 // We need to keep track of what we have sent for each interrogating 5065 // process. Usually there will be only one such process but we 5066 // should support the general case. Note that the accessibility event 5067 // stream will take care of clearing caches of querying processes that 5068 // are not longer alive, so we do not waste memory. 5069 private final LongSparseArray<AccessibilityNodeInfoCache> mAccessibilityNodeInfoCaches = 5070 new LongSparseArray<AccessibilityNodeInfoCache>(); 5071 5072 private AccessibilityNodeInfoCache getCacheForInterrogatingPid(long interrogatingPid) { 5073 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.get(interrogatingPid); 5074 if (cache == null) { 5075 cache = AccessibilityNodeInfoCache.newAccessibilityNodeInfoCache(); 5076 mAccessibilityNodeInfoCaches.put(interrogatingPid, cache); 5077 } 5078 return cache; 5079 } 5080 5081 public void onAccessibilityEvent(AccessibilityEvent event) { 5082 final int cacheCount = mAccessibilityNodeInfoCaches.size(); 5083 for (int i = 0; i < cacheCount; i++) { 5084 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.valueAt(i); 5085 cache.onAccessibilityEvent(event); 5086 } 5087 } 5088 5089 public void prefetchAccessibilityNodeInfos(long interrogatingPid, View root, 5090 List<AccessibilityNodeInfo> outInfos) { 5091 addAndCacheNotCachedNodeInfo(interrogatingPid, root, outInfos); 5092 addAndCacheNotCachedPredecessorInfos(interrogatingPid, root, outInfos); 5093 addAndCacheNotCachedDescendantInfos(interrogatingPid, root, outInfos); 5094 } 5095 5096 private void addAndCacheNotCachedNodeInfo(long interrogatingPid, 5097 View view, List<AccessibilityNodeInfo> outInfos) { 5098 final long accessibilityNodeId = AccessibilityNodeInfo.makeNodeId( 5099 view.getAccessibilityViewId(), View.NO_ID); 5100 AccessibilityNodeInfoCache cache = getCacheForInterrogatingPid(interrogatingPid); 5101 if (!cache.containsKey(accessibilityNodeId)) { 5102 // Account for the ids of the fetched infos. The infos will be 5103 // cached in the window querying process. We just need to know 5104 // which infos are cached to avoid fetching a cached one again. 5105 cache.put(accessibilityNodeId, null); 5106 outInfos.add(view.createAccessibilityNodeInfo()); 5107 } 5108 } 5109 5110 private void addAndCacheNotCachedPredecessorInfos(long interrogatingPid, View view, 5111 List<AccessibilityNodeInfo> outInfos) { 5112 ViewParent predecessor = view.getParent(); 5113 while (predecessor instanceof View 5114 && outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) { 5115 View predecessorView = (View) predecessor; 5116 addAndCacheNotCachedNodeInfo(interrogatingPid, predecessorView, outInfos); 5117 predecessor = predecessor.getParent(); 5118 } 5119 } 5120 5121 private void addAndCacheNotCachedDescendantInfos(long interrogatingPid, View view, 5122 List<AccessibilityNodeInfo> outInfos) { 5123 if (outInfos.size() > MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE 5124 || view.getAccessibilityNodeProvider() != null) { 5125 return; 5126 } 5127 addAndCacheNotCachedNodeInfo(interrogatingPid, view, outInfos); 5128 if (view instanceof ViewGroup) { 5129 ViewGroup rootGroup = (ViewGroup) view; 5130 final int childCount = rootGroup.getChildCount(); 5131 for (int i = 0; i < childCount; i++) { 5132 View child = rootGroup.getChildAt(i); 5133 addAndCacheNotCachedDescendantInfos(interrogatingPid, child, outInfos); 5134 } 5135 } 5136 } 5137 } 5138} 5139