ViewRootImpl.java revision d3ea6b40bb8f0fbc2a877963db1ab4fa0fc02b2f
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 private static final boolean WATCH_POINTER = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static IWindowSession sWindowSession; 131 132 static final Object mStaticInit = new Object(); 133 static boolean mInitialized = false; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 int mLastJoystickXDirection; 148 int mLastJoystickYDirection; 149 int mLastJoystickXKeyCode; 150 int mLastJoystickYKeyCode; 151 152 final int[] mTmpLocation = new int[2]; 153 154 final TypedValue mTmpValue = new TypedValue(); 155 156 final InputMethodCallback mInputMethodCallback; 157 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 158 int mPendingEventSeq = 0; 159 160 final Thread mThread; 161 162 final WindowLeaked mLocation; 163 164 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 165 166 final W mWindow; 167 168 final int mTargetSdkVersion; 169 170 int mSeq; 171 172 View mView; 173 View mFocusedView; 174 View mRealFocusedView; // this is not set to null in touch mode 175 int mViewVisibility; 176 boolean mAppVisible = true; 177 int mOrigWindowType = -1; 178 179 // Set to true if the owner of this window is in the stopped state, 180 // so the window should no longer be active. 181 boolean mStopped = false; 182 183 boolean mLastInCompatMode = false; 184 185 SurfaceHolder.Callback2 mSurfaceHolderCallback; 186 BaseSurfaceHolder mSurfaceHolder; 187 boolean mIsCreating; 188 boolean mDrawingAllowed; 189 190 final Region mTransparentRegion; 191 final Region mPreviousTransparentRegion; 192 193 int mWidth; 194 int mHeight; 195 Rect mDirty; 196 final Rect mCurrentDirty = new Rect(); 197 final Rect mPreviousDirty = new Rect(); 198 boolean mIsAnimating; 199 200 CompatibilityInfo.Translator mTranslator; 201 202 final View.AttachInfo mAttachInfo; 203 InputChannel mInputChannel; 204 InputQueue.Callback mInputQueueCallback; 205 InputQueue mInputQueue; 206 FallbackEventHandler mFallbackEventHandler; 207 208 final Rect mTempRect; // used in the transaction to not thrash the heap. 209 final Rect mVisRect; // used to retrieve visible rect of focused view. 210 211 boolean mTraversalScheduled; 212 long mLastTraversalFinishedTimeNanos; 213 long mLastDrawDurationNanos; 214 boolean mWillDrawSoon; 215 boolean mLayoutRequested; 216 boolean mFirst; 217 boolean mReportNextDraw; 218 boolean mFullRedrawNeeded; 219 boolean mNewSurfaceNeeded; 220 boolean mHasHadWindowFocus; 221 boolean mLastWasImTarget; 222 InputEventMessage mPendingInputEvents = null; 223 224 boolean mWindowAttributesChanged = false; 225 int mWindowAttributesChangesFlag = 0; 226 227 // These can be accessed by any thread, must be protected with a lock. 228 // Surface can never be reassigned or cleared (use Surface.clear()). 229 private final Surface mSurface = new Surface(); 230 231 boolean mAdded; 232 boolean mAddedTouchMode; 233 234 CompatibilityInfoHolder mCompatibilityInfo; 235 236 /*package*/ int mAddNesting; 237 238 // These are accessed by multiple threads. 239 final Rect mWinFrame; // frame given by window manager. 240 241 final Rect mPendingVisibleInsets = new Rect(); 242 final Rect mPendingContentInsets = new Rect(); 243 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 244 = new ViewTreeObserver.InternalInsetsInfo(); 245 246 final Configuration mLastConfiguration = new Configuration(); 247 final Configuration mPendingConfiguration = new Configuration(); 248 249 class ResizedInfo { 250 Rect coveredInsets; 251 Rect visibleInsets; 252 Configuration newConfig; 253 } 254 255 boolean mScrollMayChange; 256 int mSoftInputMode; 257 View mLastScrolledFocus; 258 int mScrollY; 259 int mCurScrollY; 260 Scroller mScroller; 261 HardwareLayer mResizeBuffer; 262 long mResizeBufferStartTime; 263 int mResizeBufferDuration; 264 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 265 private ArrayList<LayoutTransition> mPendingTransitions; 266 267 final ViewConfiguration mViewConfiguration; 268 269 /* Drag/drop */ 270 ClipDescription mDragDescription; 271 View mCurrentDragView; 272 volatile Object mLocalDragState; 273 final PointF mDragPoint = new PointF(); 274 final PointF mLastTouchPoint = new PointF(); 275 276 private boolean mProfileRendering; 277 private Thread mRenderProfiler; 278 private volatile boolean mRenderProfilingEnabled; 279 280 // Variables to track frames per second, enabled via DEBUG_FPS flag 281 private long mFpsStartTime = -1; 282 private long mFpsPrevTime = -1; 283 private int mFpsNumFrames; 284 285 /** 286 * see {@link #playSoundEffect(int)} 287 */ 288 AudioManager mAudioManager; 289 290 final AccessibilityManager mAccessibilityManager; 291 292 AccessibilityInteractionController mAccessibilityInteractionController; 293 294 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 295 296 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 297 298 private final int mDensity; 299 300 /** 301 * Consistency verifier for debugging purposes. 302 */ 303 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 304 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 305 new InputEventConsistencyVerifier(this, 0) : null; 306 307 public static IWindowSession getWindowSession(Looper mainLooper) { 308 synchronized (mStaticInit) { 309 if (!mInitialized) { 310 try { 311 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 312 sWindowSession = Display.getWindowManager().openSession( 313 imm.getClient(), imm.getInputContext()); 314 mInitialized = true; 315 } catch (RemoteException e) { 316 } 317 } 318 return sWindowSession; 319 } 320 } 321 322 static final class SystemUiVisibilityInfo { 323 int seq; 324 int globalVisibility; 325 int localValue; 326 int localChanges; 327 } 328 329 public ViewRootImpl(Context context) { 330 super(); 331 332 if (MEASURE_LATENCY) { 333 if (lt == null) { 334 lt = new LatencyTimer(100, 1000); 335 } 336 } 337 338 // Initialize the statics when this class is first instantiated. This is 339 // done here instead of in the static block because Zygote does not 340 // allow the spawning of threads. 341 getWindowSession(context.getMainLooper()); 342 343 mThread = Thread.currentThread(); 344 mLocation = new WindowLeaked(null); 345 mLocation.fillInStackTrace(); 346 mWidth = -1; 347 mHeight = -1; 348 mDirty = new Rect(); 349 mTempRect = new Rect(); 350 mVisRect = new Rect(); 351 mWinFrame = new Rect(); 352 mWindow = new W(this); 353 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 354 mInputMethodCallback = new InputMethodCallback(this); 355 mViewVisibility = View.GONE; 356 mTransparentRegion = new Region(); 357 mPreviousTransparentRegion = new Region(); 358 mFirst = true; // true for the first time the view is added 359 mAdded = false; 360 mAccessibilityManager = AccessibilityManager.getInstance(context); 361 mAccessibilityInteractionConnectionManager = 362 new AccessibilityInteractionConnectionManager(); 363 mAccessibilityManager.addAccessibilityStateChangeListener( 364 mAccessibilityInteractionConnectionManager); 365 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 366 mViewConfiguration = ViewConfiguration.get(context); 367 mDensity = context.getResources().getDisplayMetrics().densityDpi; 368 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 369 mProfileRendering = Boolean.parseBoolean( 370 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 371 } 372 373 public static void addFirstDrawHandler(Runnable callback) { 374 synchronized (sFirstDrawHandlers) { 375 if (!sFirstDrawComplete) { 376 sFirstDrawHandlers.add(callback); 377 } 378 } 379 } 380 381 public static void addConfigCallback(ComponentCallbacks callback) { 382 synchronized (sConfigCallbacks) { 383 sConfigCallbacks.add(callback); 384 } 385 } 386 387 // FIXME for perf testing only 388 private boolean mProfile = false; 389 390 /** 391 * Call this to profile the next traversal call. 392 * FIXME for perf testing only. Remove eventually 393 */ 394 public void profile() { 395 mProfile = true; 396 } 397 398 /** 399 * Indicates whether we are in touch mode. Calling this method triggers an IPC 400 * call and should be avoided whenever possible. 401 * 402 * @return True, if the device is in touch mode, false otherwise. 403 * 404 * @hide 405 */ 406 static boolean isInTouchMode() { 407 if (mInitialized) { 408 try { 409 return sWindowSession.getInTouchMode(); 410 } catch (RemoteException e) { 411 } 412 } 413 return false; 414 } 415 416 /** 417 * We have one child 418 */ 419 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 420 synchronized (this) { 421 if (mView == null) { 422 mView = view; 423 mFallbackEventHandler.setView(view); 424 mWindowAttributes.copyFrom(attrs); 425 attrs = mWindowAttributes; 426 427 if (view instanceof RootViewSurfaceTaker) { 428 mSurfaceHolderCallback = 429 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 430 if (mSurfaceHolderCallback != null) { 431 mSurfaceHolder = new TakenSurfaceHolder(); 432 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 433 } 434 } 435 436 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 437 mTranslator = compatibilityInfo.getTranslator(); 438 439 // If the application owns the surface, don't enable hardware acceleration 440 if (mSurfaceHolder == null) { 441 enableHardwareAcceleration(attrs); 442 } 443 444 boolean restore = false; 445 if (mTranslator != null) { 446 mSurface.setCompatibilityTranslator(mTranslator); 447 restore = true; 448 attrs.backup(); 449 mTranslator.translateWindowLayout(attrs); 450 } 451 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 452 453 if (!compatibilityInfo.supportsScreen()) { 454 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 455 mLastInCompatMode = true; 456 } 457 458 mSoftInputMode = attrs.softInputMode; 459 mWindowAttributesChanged = true; 460 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 461 mAttachInfo.mRootView = view; 462 mAttachInfo.mScalingRequired = mTranslator != null; 463 mAttachInfo.mApplicationScale = 464 mTranslator == null ? 1.0f : mTranslator.applicationScale; 465 if (panelParentView != null) { 466 mAttachInfo.mPanelParentWindowToken 467 = panelParentView.getApplicationWindowToken(); 468 } 469 mAdded = true; 470 int res; /* = WindowManagerImpl.ADD_OKAY; */ 471 472 // Schedule the first layout -before- adding to the window 473 // manager, to make sure we do the relayout before receiving 474 // any other events from the system. 475 requestLayout(); 476 if ((mWindowAttributes.inputFeatures 477 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 478 mInputChannel = new InputChannel(); 479 } 480 try { 481 mOrigWindowType = mWindowAttributes.type; 482 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 483 getHostVisibility(), mAttachInfo.mContentInsets, 484 mInputChannel); 485 } catch (RemoteException e) { 486 mAdded = false; 487 mView = null; 488 mAttachInfo.mRootView = null; 489 mInputChannel = null; 490 mFallbackEventHandler.setView(null); 491 unscheduleTraversals(); 492 throw new RuntimeException("Adding window failed", e); 493 } finally { 494 if (restore) { 495 attrs.restore(); 496 } 497 } 498 499 if (mTranslator != null) { 500 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 501 } 502 mPendingContentInsets.set(mAttachInfo.mContentInsets); 503 mPendingVisibleInsets.set(0, 0, 0, 0); 504 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 505 if (res < WindowManagerImpl.ADD_OKAY) { 506 mView = null; 507 mAttachInfo.mRootView = null; 508 mAdded = false; 509 mFallbackEventHandler.setView(null); 510 unscheduleTraversals(); 511 switch (res) { 512 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 513 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 514 throw new WindowManagerImpl.BadTokenException( 515 "Unable to add window -- token " + attrs.token 516 + " is not valid; is your activity running?"); 517 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 518 throw new WindowManagerImpl.BadTokenException( 519 "Unable to add window -- token " + attrs.token 520 + " is not for an application"); 521 case WindowManagerImpl.ADD_APP_EXITING: 522 throw new WindowManagerImpl.BadTokenException( 523 "Unable to add window -- app for token " + attrs.token 524 + " is exiting"); 525 case WindowManagerImpl.ADD_DUPLICATE_ADD: 526 throw new WindowManagerImpl.BadTokenException( 527 "Unable to add window -- window " + mWindow 528 + " has already been added"); 529 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 530 // Silently ignore -- we would have just removed it 531 // right away, anyway. 532 return; 533 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 534 throw new WindowManagerImpl.BadTokenException( 535 "Unable to add window " + mWindow + 536 " -- another window of this type already exists"); 537 case WindowManagerImpl.ADD_PERMISSION_DENIED: 538 throw new WindowManagerImpl.BadTokenException( 539 "Unable to add window " + mWindow + 540 " -- permission denied for this window type"); 541 } 542 throw new RuntimeException( 543 "Unable to add window -- unknown error code " + res); 544 } 545 546 if (view instanceof RootViewSurfaceTaker) { 547 mInputQueueCallback = 548 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 549 } 550 if (mInputChannel != null) { 551 if (mInputQueueCallback != null) { 552 mInputQueue = new InputQueue(mInputChannel); 553 mInputQueueCallback.onInputQueueCreated(mInputQueue); 554 } else { 555 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 556 Looper.myQueue()); 557 } 558 } 559 560 view.assignParent(this); 561 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 562 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 563 564 if (mAccessibilityManager.isEnabled()) { 565 mAccessibilityInteractionConnectionManager.ensureConnection(); 566 } 567 } 568 } 569 } 570 571 void destroyHardwareResources() { 572 if (mAttachInfo.mHardwareRenderer != null) { 573 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 574 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 575 } 576 mAttachInfo.mHardwareRenderer.destroy(false); 577 } 578 } 579 580 void terminateHardwareResources() { 581 if (mAttachInfo.mHardwareRenderer != null) { 582 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 583 mAttachInfo.mHardwareRenderer.destroy(false); 584 } 585 } 586 587 void destroyHardwareLayers() { 588 if (mThread != Thread.currentThread()) { 589 if (mAttachInfo.mHardwareRenderer != null && 590 mAttachInfo.mHardwareRenderer.isEnabled()) { 591 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 592 } 593 } else { 594 if (mAttachInfo.mHardwareRenderer != null && 595 mAttachInfo.mHardwareRenderer.isEnabled()) { 596 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 597 } 598 } 599 } 600 601 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 602 mAttachInfo.mHardwareAccelerated = false; 603 mAttachInfo.mHardwareAccelerationRequested = false; 604 605 // Don't enable hardware acceleration when the application is in compatibility mode 606 if (mTranslator != null) return; 607 608 // Try to enable hardware acceleration if requested 609 final boolean hardwareAccelerated = 610 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 611 612 if (hardwareAccelerated) { 613 if (!HardwareRenderer.isAvailable()) { 614 return; 615 } 616 617 // Persistent processes (including the system) should not do 618 // accelerated rendering on low-end devices. In that case, 619 // sRendererDisabled will be set. In addition, the system process 620 // itself should never do accelerated rendering. In that case, both 621 // sRendererDisabled and sSystemRendererDisabled are set. When 622 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 623 // can be used by code on the system process to escape that and enable 624 // HW accelerated drawing. (This is basically for the lock screen.) 625 626 final boolean fakeHwAccelerated = (attrs.privateFlags & 627 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 628 final boolean forceHwAccelerated = (attrs.privateFlags & 629 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 630 631 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 632 && forceHwAccelerated)) { 633 // Don't enable hardware acceleration when we're not on the main thread 634 if (!HardwareRenderer.sSystemRendererDisabled 635 && Looper.getMainLooper() != Looper.myLooper()) { 636 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 637 + "acceleration outside of the main thread, aborting"); 638 return; 639 } 640 641 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 642 if (mAttachInfo.mHardwareRenderer != null) { 643 mAttachInfo.mHardwareRenderer.destroy(true); 644 } 645 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 646 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 647 = mAttachInfo.mHardwareRenderer != null; 648 } else if (fakeHwAccelerated) { 649 // The window had wanted to use hardware acceleration, but this 650 // is not allowed in its process. By setting this flag, it can 651 // still render as if it was accelerated. This is basically for 652 // the preview windows the window manager shows for launching 653 // applications, so they will look more like the app being launched. 654 mAttachInfo.mHardwareAccelerationRequested = true; 655 } 656 } 657 } 658 659 public View getView() { 660 return mView; 661 } 662 663 final WindowLeaked getLocation() { 664 return mLocation; 665 } 666 667 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 668 synchronized (this) { 669 int oldSoftInputMode = mWindowAttributes.softInputMode; 670 // preserve compatible window flag if exists. 671 int compatibleWindowFlag = 672 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 673 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 674 mWindowAttributes.flags |= compatibleWindowFlag; 675 676 if (newView) { 677 mSoftInputMode = attrs.softInputMode; 678 requestLayout(); 679 } 680 // Don't lose the mode we last auto-computed. 681 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 682 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 683 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 684 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 685 | (oldSoftInputMode 686 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 687 } 688 mWindowAttributesChanged = true; 689 scheduleTraversals(); 690 } 691 } 692 693 void handleAppVisibility(boolean visible) { 694 if (mAppVisible != visible) { 695 mAppVisible = visible; 696 scheduleTraversals(); 697 } 698 } 699 700 void handleGetNewSurface() { 701 mNewSurfaceNeeded = true; 702 mFullRedrawNeeded = true; 703 scheduleTraversals(); 704 } 705 706 /** 707 * {@inheritDoc} 708 */ 709 public void requestLayout() { 710 checkThread(); 711 mLayoutRequested = true; 712 scheduleTraversals(); 713 } 714 715 /** 716 * {@inheritDoc} 717 */ 718 public boolean isLayoutRequested() { 719 return mLayoutRequested; 720 } 721 722 public void invalidateChild(View child, Rect dirty) { 723 checkThread(); 724 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 725 if (dirty == null) { 726 // Fast invalidation for GL-enabled applications; GL must redraw everything 727 invalidate(); 728 return; 729 } 730 if (mCurScrollY != 0 || mTranslator != null) { 731 mTempRect.set(dirty); 732 dirty = mTempRect; 733 if (mCurScrollY != 0) { 734 dirty.offset(0, -mCurScrollY); 735 } 736 if (mTranslator != null) { 737 mTranslator.translateRectInAppWindowToScreen(dirty); 738 } 739 if (mAttachInfo.mScalingRequired) { 740 dirty.inset(-1, -1); 741 } 742 } 743 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 744 mAttachInfo.mSetIgnoreDirtyState = true; 745 mAttachInfo.mIgnoreDirtyState = true; 746 } 747 mDirty.union(dirty); 748 if (!mWillDrawSoon) { 749 scheduleTraversals(); 750 } 751 } 752 753 void invalidate() { 754 mDirty.set(0, 0, mWidth, mHeight); 755 scheduleTraversals(); 756 } 757 758 void setStopped(boolean stopped) { 759 if (mStopped != stopped) { 760 mStopped = stopped; 761 if (!stopped) { 762 scheduleTraversals(); 763 } 764 } 765 } 766 767 public ViewParent getParent() { 768 return null; 769 } 770 771 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 772 invalidateChild(null, dirty); 773 return null; 774 } 775 776 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 777 if (child != mView) { 778 throw new RuntimeException("child is not mine, honest!"); 779 } 780 // Note: don't apply scroll offset, because we want to know its 781 // visibility in the virtual canvas being given to the view hierarchy. 782 return r.intersect(0, 0, mWidth, mHeight); 783 } 784 785 public void bringChildToFront(View child) { 786 } 787 788 public void scheduleTraversals() { 789 if (!mTraversalScheduled) { 790 mTraversalScheduled = true; 791 792 //noinspection ConstantConditions 793 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 794 final long now = System.nanoTime(); 795 Log.d(TAG, "Latency: Scheduled traversal, it has been " 796 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 797 + "ms since the last traversal finished."); 798 } 799 800 sendEmptyMessage(DO_TRAVERSAL); 801 } 802 } 803 804 public void unscheduleTraversals() { 805 if (mTraversalScheduled) { 806 mTraversalScheduled = false; 807 removeMessages(DO_TRAVERSAL); 808 } 809 } 810 811 int getHostVisibility() { 812 return mAppVisible ? mView.getVisibility() : View.GONE; 813 } 814 815 void disposeResizeBuffer() { 816 if (mResizeBuffer != null) { 817 mResizeBuffer.destroy(); 818 mResizeBuffer = null; 819 } 820 } 821 822 /** 823 * Add LayoutTransition to the list of transitions to be started in the next traversal. 824 * This list will be cleared after the transitions on the list are start()'ed. These 825 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 826 * happens during the layout phase of traversal, which we want to complete before any of the 827 * animations are started (because those animations may side-effect properties that layout 828 * depends upon, like the bounding rectangles of the affected views). So we add the transition 829 * to the list and it is started just prior to starting the drawing phase of traversal. 830 * 831 * @param transition The LayoutTransition to be started on the next traversal. 832 * 833 * @hide 834 */ 835 public void requestTransitionStart(LayoutTransition transition) { 836 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 837 if (mPendingTransitions == null) { 838 mPendingTransitions = new ArrayList<LayoutTransition>(); 839 } 840 mPendingTransitions.add(transition); 841 } 842 } 843 844 private void processInputEvents(boolean outOfOrder) { 845 while (mPendingInputEvents != null) { 846 handleMessage(mPendingInputEvents.mMessage); 847 InputEventMessage tmpMessage = mPendingInputEvents; 848 mPendingInputEvents = mPendingInputEvents.mNext; 849 tmpMessage.recycle(); 850 if (outOfOrder) { 851 removeMessages(PROCESS_INPUT_EVENTS); 852 } 853 } 854 } 855 856 private void performTraversals() { 857 // cache mView since it is used so much below... 858 final View host = mView; 859 860 processInputEvents(true); 861 862 if (DBG) { 863 System.out.println("======================================"); 864 System.out.println("performTraversals"); 865 host.debug(); 866 } 867 868 if (host == null || !mAdded) 869 return; 870 871 mTraversalScheduled = false; 872 mWillDrawSoon = true; 873 boolean windowSizeMayChange = false; 874 boolean fullRedrawNeeded = mFullRedrawNeeded; 875 boolean newSurface = false; 876 boolean surfaceChanged = false; 877 WindowManager.LayoutParams lp = mWindowAttributes; 878 879 int desiredWindowWidth; 880 int desiredWindowHeight; 881 int childWidthMeasureSpec; 882 int childHeightMeasureSpec; 883 884 final View.AttachInfo attachInfo = mAttachInfo; 885 886 final int viewVisibility = getHostVisibility(); 887 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 888 || mNewSurfaceNeeded; 889 890 WindowManager.LayoutParams params = null; 891 if (mWindowAttributesChanged) { 892 mWindowAttributesChanged = false; 893 surfaceChanged = true; 894 params = lp; 895 } 896 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 897 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 898 params = lp; 899 fullRedrawNeeded = true; 900 mLayoutRequested = true; 901 if (mLastInCompatMode) { 902 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 903 mLastInCompatMode = false; 904 } else { 905 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 906 mLastInCompatMode = true; 907 } 908 } 909 910 mWindowAttributesChangesFlag = 0; 911 912 Rect frame = mWinFrame; 913 if (mFirst) { 914 fullRedrawNeeded = true; 915 mLayoutRequested = true; 916 917 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 918 // NOTE -- system code, won't try to do compat mode. 919 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 920 Point size = new Point(); 921 disp.getRealSize(size); 922 desiredWindowWidth = size.x; 923 desiredWindowHeight = size.y; 924 } else { 925 DisplayMetrics packageMetrics = 926 mView.getContext().getResources().getDisplayMetrics(); 927 desiredWindowWidth = packageMetrics.widthPixels; 928 desiredWindowHeight = packageMetrics.heightPixels; 929 } 930 931 // For the very first time, tell the view hierarchy that it 932 // is attached to the window. Note that at this point the surface 933 // object is not initialized to its backing store, but soon it 934 // will be (assuming the window is visible). 935 attachInfo.mSurface = mSurface; 936 // We used to use the following condition to choose 32 bits drawing caches: 937 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 938 // However, windows are now always 32 bits by default, so choose 32 bits 939 attachInfo.mUse32BitDrawingCache = true; 940 attachInfo.mHasWindowFocus = false; 941 attachInfo.mWindowVisibility = viewVisibility; 942 attachInfo.mRecomputeGlobalAttributes = false; 943 attachInfo.mKeepScreenOn = false; 944 attachInfo.mSystemUiVisibility = 0; 945 viewVisibilityChanged = false; 946 mLastConfiguration.setTo(host.getResources().getConfiguration()); 947 host.dispatchAttachedToWindow(attachInfo, 0); 948 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 949 950 host.fitSystemWindows(mAttachInfo.mContentInsets); 951 952 } else { 953 desiredWindowWidth = frame.width(); 954 desiredWindowHeight = frame.height(); 955 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 956 if (DEBUG_ORIENTATION) Log.v(TAG, 957 "View " + host + " resized to: " + frame); 958 fullRedrawNeeded = true; 959 mLayoutRequested = true; 960 windowSizeMayChange = true; 961 } 962 } 963 964 if (viewVisibilityChanged) { 965 attachInfo.mWindowVisibility = viewVisibility; 966 host.dispatchWindowVisibilityChanged(viewVisibility); 967 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 968 destroyHardwareResources(); 969 } 970 if (viewVisibility == View.GONE) { 971 // After making a window gone, we will count it as being 972 // shown for the first time the next time it gets focus. 973 mHasHadWindowFocus = false; 974 } 975 } 976 977 boolean insetsChanged = false; 978 979 if (mLayoutRequested && !mStopped) { 980 // Execute enqueued actions on every layout in case a view that was detached 981 // enqueued an action after being detached 982 getRunQueue().executeActions(attachInfo.mHandler); 983 984 final Resources res = mView.getContext().getResources(); 985 986 if (mFirst) { 987 // make sure touch mode code executes by setting cached value 988 // to opposite of the added touch mode. 989 mAttachInfo.mInTouchMode = !mAddedTouchMode; 990 ensureTouchModeLocally(mAddedTouchMode); 991 } else { 992 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 993 insetsChanged = true; 994 } 995 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 996 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 997 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 998 + mAttachInfo.mVisibleInsets); 999 } 1000 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1001 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1002 windowSizeMayChange = true; 1003 1004 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1005 // NOTE -- system code, won't try to do compat mode. 1006 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1007 Point size = new Point(); 1008 disp.getRealSize(size); 1009 desiredWindowWidth = size.x; 1010 desiredWindowHeight = size.y; 1011 } else { 1012 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1013 desiredWindowWidth = packageMetrics.widthPixels; 1014 desiredWindowHeight = packageMetrics.heightPixels; 1015 } 1016 } 1017 } 1018 1019 // Ask host how big it wants to be 1020 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1021 "Measuring " + host + " in display " + desiredWindowWidth 1022 + "x" + desiredWindowHeight + "..."); 1023 1024 boolean goodMeasure = false; 1025 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1026 // On large screens, we don't want to allow dialogs to just 1027 // stretch to fill the entire width of the screen to display 1028 // one line of text. First try doing the layout at a smaller 1029 // size to see if it will fit. 1030 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1031 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1032 int baseSize = 0; 1033 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1034 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1035 } 1036 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1037 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1038 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1039 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1040 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1041 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1042 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1043 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1044 goodMeasure = true; 1045 } else { 1046 // Didn't fit in that size... try expanding a bit. 1047 baseSize = (baseSize+desiredWindowWidth)/2; 1048 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1049 + baseSize); 1050 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1051 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1052 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1053 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1054 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1055 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1056 goodMeasure = true; 1057 } 1058 } 1059 } 1060 } 1061 1062 if (!goodMeasure) { 1063 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1064 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1065 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1066 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1067 windowSizeMayChange = true; 1068 } 1069 } 1070 1071 if (DBG) { 1072 System.out.println("======================================"); 1073 System.out.println("performTraversals -- after measure"); 1074 host.debug(); 1075 } 1076 } 1077 1078 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1079 //Log.i(TAG, "Computing view hierarchy attributes!"); 1080 attachInfo.mRecomputeGlobalAttributes = false; 1081 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1082 int oldVis = attachInfo.mSystemUiVisibility; 1083 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1084 attachInfo.mKeepScreenOn = false; 1085 attachInfo.mSystemUiVisibility = 0; 1086 attachInfo.mHasSystemUiListeners = false; 1087 host.dispatchCollectViewAttributes(0); 1088 if (attachInfo.mKeepScreenOn != oldScreenOn 1089 || attachInfo.mSystemUiVisibility != oldVis 1090 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1091 params = lp; 1092 } 1093 } 1094 if (attachInfo.mForceReportNewAttributes) { 1095 attachInfo.mForceReportNewAttributes = false; 1096 params = lp; 1097 } 1098 1099 if (mFirst || attachInfo.mViewVisibilityChanged) { 1100 attachInfo.mViewVisibilityChanged = false; 1101 int resizeMode = mSoftInputMode & 1102 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1103 // If we are in auto resize mode, then we need to determine 1104 // what mode to use now. 1105 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1106 final int N = attachInfo.mScrollContainers.size(); 1107 for (int i=0; i<N; i++) { 1108 if (attachInfo.mScrollContainers.get(i).isShown()) { 1109 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1110 } 1111 } 1112 if (resizeMode == 0) { 1113 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1114 } 1115 if ((lp.softInputMode & 1116 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1117 lp.softInputMode = (lp.softInputMode & 1118 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1119 resizeMode; 1120 params = lp; 1121 } 1122 } 1123 } 1124 1125 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1126 if (!PixelFormat.formatHasAlpha(params.format)) { 1127 params.format = PixelFormat.TRANSLUCENT; 1128 } 1129 } 1130 1131 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1132 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1133 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1134 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1135 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1136 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1137 1138 final boolean computesInternalInsets = 1139 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1140 1141 boolean insetsPending = false; 1142 int relayoutResult = 0; 1143 1144 if (mFirst || windowShouldResize || insetsChanged || 1145 viewVisibilityChanged || params != null) { 1146 1147 if (viewVisibility == View.VISIBLE) { 1148 // If this window is giving internal insets to the window 1149 // manager, and it is being added or changing its visibility, 1150 // then we want to first give the window manager "fake" 1151 // insets to cause it to effectively ignore the content of 1152 // the window during layout. This avoids it briefly causing 1153 // other windows to resize/move based on the raw frame of the 1154 // window, waiting until we can finish laying out this window 1155 // and get back to the window manager with the ultimately 1156 // computed insets. 1157 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1158 } 1159 1160 if (mSurfaceHolder != null) { 1161 mSurfaceHolder.mSurfaceLock.lock(); 1162 mDrawingAllowed = true; 1163 } 1164 1165 boolean hwInitialized = false; 1166 boolean contentInsetsChanged = false; 1167 boolean visibleInsetsChanged; 1168 boolean hadSurface = mSurface.isValid(); 1169 1170 try { 1171 int fl = 0; 1172 if (params != null) { 1173 fl = params.flags; 1174 if (attachInfo.mKeepScreenOn) { 1175 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1176 } 1177 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1178 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1179 } 1180 if (DEBUG_LAYOUT) { 1181 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1182 host.getMeasuredHeight() + ", params=" + params); 1183 } 1184 1185 final int surfaceGenerationId = mSurface.getGenerationId(); 1186 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1187 1188 if (params != null) { 1189 params.flags = fl; 1190 } 1191 1192 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1193 + " content=" + mPendingContentInsets.toShortString() 1194 + " visible=" + mPendingVisibleInsets.toShortString() 1195 + " surface=" + mSurface); 1196 1197 if (mPendingConfiguration.seq != 0) { 1198 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1199 + mPendingConfiguration); 1200 updateConfiguration(mPendingConfiguration, !mFirst); 1201 mPendingConfiguration.seq = 0; 1202 } 1203 1204 contentInsetsChanged = !mPendingContentInsets.equals( 1205 mAttachInfo.mContentInsets); 1206 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1207 mAttachInfo.mVisibleInsets); 1208 if (contentInsetsChanged) { 1209 if (mWidth > 0 && mHeight > 0 && 1210 mSurface != null && mSurface.isValid() && 1211 !mAttachInfo.mTurnOffWindowResizeAnim && 1212 mAttachInfo.mHardwareRenderer != null && 1213 mAttachInfo.mHardwareRenderer.isEnabled() && 1214 mAttachInfo.mHardwareRenderer.validate() && 1215 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1216 1217 disposeResizeBuffer(); 1218 1219 boolean completed = false; 1220 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1221 HardwareCanvas layerCanvas = null; 1222 try { 1223 if (mResizeBuffer == null) { 1224 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1225 mWidth, mHeight, false); 1226 } else if (mResizeBuffer.getWidth() != mWidth || 1227 mResizeBuffer.getHeight() != mHeight) { 1228 mResizeBuffer.resize(mWidth, mHeight); 1229 } 1230 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1231 layerCanvas.setViewport(mWidth, mHeight); 1232 layerCanvas.onPreDraw(null); 1233 final int restoreCount = layerCanvas.save(); 1234 1235 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1236 1237 int yoff; 1238 final boolean scrolling = mScroller != null 1239 && mScroller.computeScrollOffset(); 1240 if (scrolling) { 1241 yoff = mScroller.getCurrY(); 1242 mScroller.abortAnimation(); 1243 } else { 1244 yoff = mScrollY; 1245 } 1246 1247 layerCanvas.translate(0, -yoff); 1248 if (mTranslator != null) { 1249 mTranslator.translateCanvas(layerCanvas); 1250 } 1251 1252 mView.draw(layerCanvas); 1253 1254 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1255 mResizeBufferDuration = mView.getResources().getInteger( 1256 com.android.internal.R.integer.config_mediumAnimTime); 1257 completed = true; 1258 1259 layerCanvas.restoreToCount(restoreCount); 1260 } catch (OutOfMemoryError e) { 1261 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1262 } finally { 1263 if (layerCanvas != null) { 1264 layerCanvas.onPostDraw(); 1265 } 1266 if (mResizeBuffer != null) { 1267 mResizeBuffer.end(hwRendererCanvas); 1268 if (!completed) { 1269 mResizeBuffer.destroy(); 1270 mResizeBuffer = null; 1271 } 1272 } 1273 } 1274 } 1275 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1276 host.fitSystemWindows(mAttachInfo.mContentInsets); 1277 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1278 + mAttachInfo.mContentInsets); 1279 } 1280 if (visibleInsetsChanged) { 1281 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1282 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1283 + mAttachInfo.mVisibleInsets); 1284 } 1285 1286 if (!hadSurface) { 1287 if (mSurface.isValid()) { 1288 // If we are creating a new surface, then we need to 1289 // completely redraw it. Also, when we get to the 1290 // point of drawing it we will hold off and schedule 1291 // a new traversal instead. This is so we can tell the 1292 // window manager about all of the windows being displayed 1293 // before actually drawing them, so it can display then 1294 // all at once. 1295 newSurface = true; 1296 fullRedrawNeeded = true; 1297 mPreviousTransparentRegion.setEmpty(); 1298 1299 if (mAttachInfo.mHardwareRenderer != null) { 1300 try { 1301 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1302 } catch (Surface.OutOfResourcesException e) { 1303 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1304 try { 1305 if (!sWindowSession.outOfMemory(mWindow)) { 1306 Slog.w(TAG, "No processes killed for memory; killing self"); 1307 Process.killProcess(Process.myPid()); 1308 } 1309 } catch (RemoteException ex) { 1310 } 1311 mLayoutRequested = true; // ask wm for a new surface next time. 1312 return; 1313 } 1314 } 1315 } 1316 } else if (!mSurface.isValid()) { 1317 // If the surface has been removed, then reset the scroll 1318 // positions. 1319 mLastScrolledFocus = null; 1320 mScrollY = mCurScrollY = 0; 1321 if (mScroller != null) { 1322 mScroller.abortAnimation(); 1323 } 1324 disposeResizeBuffer(); 1325 // Our surface is gone 1326 if (mAttachInfo.mHardwareRenderer != null && 1327 mAttachInfo.mHardwareRenderer.isEnabled()) { 1328 mAttachInfo.mHardwareRenderer.destroy(true); 1329 } 1330 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1331 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1332 fullRedrawNeeded = true; 1333 try { 1334 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1335 } catch (Surface.OutOfResourcesException e) { 1336 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1337 try { 1338 if (!sWindowSession.outOfMemory(mWindow)) { 1339 Slog.w(TAG, "No processes killed for memory; killing self"); 1340 Process.killProcess(Process.myPid()); 1341 } 1342 } catch (RemoteException ex) { 1343 } 1344 mLayoutRequested = true; // ask wm for a new surface next time. 1345 return; 1346 } 1347 } 1348 } catch (RemoteException e) { 1349 } 1350 1351 if (DEBUG_ORIENTATION) Log.v( 1352 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1353 1354 attachInfo.mWindowLeft = frame.left; 1355 attachInfo.mWindowTop = frame.top; 1356 1357 // !!FIXME!! This next section handles the case where we did not get the 1358 // window size we asked for. We should avoid this by getting a maximum size from 1359 // the window session beforehand. 1360 mWidth = frame.width(); 1361 mHeight = frame.height(); 1362 1363 if (mSurfaceHolder != null) { 1364 // The app owns the surface; tell it about what is going on. 1365 if (mSurface.isValid()) { 1366 // XXX .copyFrom() doesn't work! 1367 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1368 mSurfaceHolder.mSurface = mSurface; 1369 } 1370 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1371 mSurfaceHolder.mSurfaceLock.unlock(); 1372 if (mSurface.isValid()) { 1373 if (!hadSurface) { 1374 mSurfaceHolder.ungetCallbacks(); 1375 1376 mIsCreating = true; 1377 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1378 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1379 if (callbacks != null) { 1380 for (SurfaceHolder.Callback c : callbacks) { 1381 c.surfaceCreated(mSurfaceHolder); 1382 } 1383 } 1384 surfaceChanged = true; 1385 } 1386 if (surfaceChanged) { 1387 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1388 lp.format, mWidth, mHeight); 1389 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1390 if (callbacks != null) { 1391 for (SurfaceHolder.Callback c : callbacks) { 1392 c.surfaceChanged(mSurfaceHolder, lp.format, 1393 mWidth, mHeight); 1394 } 1395 } 1396 } 1397 mIsCreating = false; 1398 } else if (hadSurface) { 1399 mSurfaceHolder.ungetCallbacks(); 1400 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1401 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1402 if (callbacks != null) { 1403 for (SurfaceHolder.Callback c : callbacks) { 1404 c.surfaceDestroyed(mSurfaceHolder); 1405 } 1406 } 1407 mSurfaceHolder.mSurfaceLock.lock(); 1408 try { 1409 mSurfaceHolder.mSurface = new Surface(); 1410 } finally { 1411 mSurfaceHolder.mSurfaceLock.unlock(); 1412 } 1413 } 1414 } 1415 1416 if (mAttachInfo.mHardwareRenderer != null && 1417 mAttachInfo.mHardwareRenderer.isEnabled()) { 1418 if (hwInitialized || windowShouldResize || 1419 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1420 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1421 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1422 if (!hwInitialized) { 1423 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1424 } 1425 } 1426 } 1427 1428 if (!mStopped) { 1429 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1430 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1431 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1432 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1433 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1434 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1435 1436 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1437 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1438 + " mHeight=" + mHeight 1439 + " measuredHeight=" + host.getMeasuredHeight() 1440 + " coveredInsetsChanged=" + contentInsetsChanged); 1441 1442 // Ask host how big it wants to be 1443 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1444 1445 // Implementation of weights from WindowManager.LayoutParams 1446 // We just grow the dimensions as needed and re-measure if 1447 // needs be 1448 int width = host.getMeasuredWidth(); 1449 int height = host.getMeasuredHeight(); 1450 boolean measureAgain = false; 1451 1452 if (lp.horizontalWeight > 0.0f) { 1453 width += (int) ((mWidth - width) * lp.horizontalWeight); 1454 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1455 MeasureSpec.EXACTLY); 1456 measureAgain = true; 1457 } 1458 if (lp.verticalWeight > 0.0f) { 1459 height += (int) ((mHeight - height) * lp.verticalWeight); 1460 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1461 MeasureSpec.EXACTLY); 1462 measureAgain = true; 1463 } 1464 1465 if (measureAgain) { 1466 if (DEBUG_LAYOUT) Log.v(TAG, 1467 "And hey let's measure once more: width=" + width 1468 + " height=" + height); 1469 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1470 } 1471 1472 mLayoutRequested = true; 1473 } 1474 } 1475 } 1476 1477 final boolean didLayout = mLayoutRequested && !mStopped; 1478 boolean triggerGlobalLayoutListener = didLayout 1479 || attachInfo.mRecomputeGlobalAttributes; 1480 if (didLayout) { 1481 mLayoutRequested = false; 1482 mScrollMayChange = true; 1483 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1484 TAG, "Laying out " + host + " to (" + 1485 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1486 long startTime = 0L; 1487 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1488 startTime = SystemClock.elapsedRealtime(); 1489 } 1490 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1491 1492 if (false && ViewDebug.consistencyCheckEnabled) { 1493 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1494 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1495 + "please refer to the logs with the tag " 1496 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1497 } 1498 } 1499 1500 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1501 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1502 } 1503 1504 // By this point all views have been sized and positionned 1505 // We can compute the transparent area 1506 1507 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1508 // start out transparent 1509 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1510 host.getLocationInWindow(mTmpLocation); 1511 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1512 mTmpLocation[0] + host.mRight - host.mLeft, 1513 mTmpLocation[1] + host.mBottom - host.mTop); 1514 1515 host.gatherTransparentRegion(mTransparentRegion); 1516 if (mTranslator != null) { 1517 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1518 } 1519 1520 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1521 mPreviousTransparentRegion.set(mTransparentRegion); 1522 // reconfigure window manager 1523 try { 1524 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1525 } catch (RemoteException e) { 1526 } 1527 } 1528 } 1529 1530 if (DBG) { 1531 System.out.println("======================================"); 1532 System.out.println("performTraversals -- after setFrame"); 1533 host.debug(); 1534 } 1535 } 1536 1537 if (triggerGlobalLayoutListener) { 1538 attachInfo.mRecomputeGlobalAttributes = false; 1539 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1540 1541 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1542 postSendWindowContentChangedCallback(); 1543 } 1544 } 1545 1546 if (computesInternalInsets) { 1547 // Clear the original insets. 1548 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1549 insets.reset(); 1550 1551 // Compute new insets in place. 1552 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1553 1554 // Tell the window manager. 1555 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1556 mLastGivenInsets.set(insets); 1557 1558 // Translate insets to screen coordinates if needed. 1559 final Rect contentInsets; 1560 final Rect visibleInsets; 1561 final Region touchableRegion; 1562 if (mTranslator != null) { 1563 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1564 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1565 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1566 } else { 1567 contentInsets = insets.contentInsets; 1568 visibleInsets = insets.visibleInsets; 1569 touchableRegion = insets.touchableRegion; 1570 } 1571 1572 try { 1573 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1574 contentInsets, visibleInsets, touchableRegion); 1575 } catch (RemoteException e) { 1576 } 1577 } 1578 } 1579 1580 if (mFirst) { 1581 // handle first focus request 1582 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1583 + mView.hasFocus()); 1584 if (mView != null) { 1585 if (!mView.hasFocus()) { 1586 mView.requestFocus(View.FOCUS_FORWARD); 1587 mFocusedView = mRealFocusedView = mView.findFocus(); 1588 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1589 + mFocusedView); 1590 } else { 1591 mRealFocusedView = mView.findFocus(); 1592 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1593 + mRealFocusedView); 1594 } 1595 } 1596 } 1597 1598 mFirst = false; 1599 mWillDrawSoon = false; 1600 mNewSurfaceNeeded = false; 1601 mViewVisibility = viewVisibility; 1602 1603 if (mAttachInfo.mHasWindowFocus) { 1604 final boolean imTarget = WindowManager.LayoutParams 1605 .mayUseInputMethod(mWindowAttributes.flags); 1606 if (imTarget != mLastWasImTarget) { 1607 mLastWasImTarget = imTarget; 1608 InputMethodManager imm = InputMethodManager.peekInstance(); 1609 if (imm != null && imTarget) { 1610 imm.startGettingWindowFocus(mView); 1611 imm.onWindowFocus(mView, mView.findFocus(), 1612 mWindowAttributes.softInputMode, 1613 !mHasHadWindowFocus, mWindowAttributes.flags); 1614 } 1615 } 1616 } 1617 1618 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1619 viewVisibility != View.VISIBLE; 1620 1621 if (!cancelDraw && !newSurface) { 1622 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1623 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1624 mPendingTransitions.get(i).startChangingAnimations(); 1625 } 1626 mPendingTransitions.clear(); 1627 } 1628 mFullRedrawNeeded = false; 1629 1630 final long drawStartTime; 1631 if (ViewDebug.DEBUG_LATENCY) { 1632 drawStartTime = System.nanoTime(); 1633 } 1634 1635 draw(fullRedrawNeeded); 1636 1637 if (ViewDebug.DEBUG_LATENCY) { 1638 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1639 } 1640 1641 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1642 || mReportNextDraw) { 1643 if (LOCAL_LOGV) { 1644 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1645 } 1646 mReportNextDraw = false; 1647 if (mSurfaceHolder != null && mSurface.isValid()) { 1648 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1649 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1650 if (callbacks != null) { 1651 for (SurfaceHolder.Callback c : callbacks) { 1652 if (c instanceof SurfaceHolder.Callback2) { 1653 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1654 mSurfaceHolder); 1655 } 1656 } 1657 } 1658 } 1659 try { 1660 sWindowSession.finishDrawing(mWindow); 1661 } catch (RemoteException e) { 1662 } 1663 } 1664 } else { 1665 // End any pending transitions on this non-visible window 1666 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1667 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1668 mPendingTransitions.get(i).endChangingAnimations(); 1669 } 1670 mPendingTransitions.clear(); 1671 } 1672 // We were supposed to report when we are done drawing. Since we canceled the 1673 // draw, remember it here. 1674 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1675 mReportNextDraw = true; 1676 } 1677 if (fullRedrawNeeded) { 1678 mFullRedrawNeeded = true; 1679 } 1680 1681 if (viewVisibility == View.VISIBLE) { 1682 // Try again 1683 scheduleTraversals(); 1684 } 1685 } 1686 } 1687 1688 public void requestTransparentRegion(View child) { 1689 // the test below should not fail unless someone is messing with us 1690 checkThread(); 1691 if (mView == child) { 1692 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1693 // Need to make sure we re-evaluate the window attributes next 1694 // time around, to ensure the window has the correct format. 1695 mWindowAttributesChanged = true; 1696 mWindowAttributesChangesFlag = 0; 1697 requestLayout(); 1698 } 1699 } 1700 1701 /** 1702 * Figures out the measure spec for the root view in a window based on it's 1703 * layout params. 1704 * 1705 * @param windowSize 1706 * The available width or height of the window 1707 * 1708 * @param rootDimension 1709 * The layout params for one dimension (width or height) of the 1710 * window. 1711 * 1712 * @return The measure spec to use to measure the root view. 1713 */ 1714 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1715 int measureSpec; 1716 switch (rootDimension) { 1717 1718 case ViewGroup.LayoutParams.MATCH_PARENT: 1719 // Window can't resize. Force root view to be windowSize. 1720 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1721 break; 1722 case ViewGroup.LayoutParams.WRAP_CONTENT: 1723 // Window can resize. Set max size for root view. 1724 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1725 break; 1726 default: 1727 // Window wants to be an exact size. Force root view to be that size. 1728 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1729 break; 1730 } 1731 return measureSpec; 1732 } 1733 1734 int mHardwareYOffset; 1735 int mResizeAlpha; 1736 final Paint mResizePaint = new Paint(); 1737 1738 public void onHardwarePreDraw(HardwareCanvas canvas) { 1739 canvas.translate(0, -mHardwareYOffset); 1740 } 1741 1742 public void onHardwarePostDraw(HardwareCanvas canvas) { 1743 if (mResizeBuffer != null) { 1744 mResizePaint.setAlpha(mResizeAlpha); 1745 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1746 } 1747 } 1748 1749 /** 1750 * @hide 1751 */ 1752 void outputDisplayList(View view) { 1753 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1754 DisplayList displayList = view.getDisplayList(); 1755 if (displayList != null) { 1756 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1757 } 1758 } 1759 } 1760 1761 /** 1762 * @see #PROPERTY_PROFILE_RENDERING 1763 */ 1764 private void profileRendering(boolean enabled) { 1765 if (mProfileRendering) { 1766 mRenderProfilingEnabled = enabled; 1767 if (mRenderProfiler == null) { 1768 mRenderProfiler = new Thread(new Runnable() { 1769 @Override 1770 public void run() { 1771 Log.d(TAG, "Starting profiling thread"); 1772 while (mRenderProfilingEnabled) { 1773 mAttachInfo.mHandler.post(new Runnable() { 1774 @Override 1775 public void run() { 1776 mDirty.set(0, 0, mWidth, mHeight); 1777 scheduleTraversals(); 1778 } 1779 }); 1780 try { 1781 // TODO: This should use vsync when we get an API 1782 Thread.sleep(15); 1783 } catch (InterruptedException e) { 1784 Log.d(TAG, "Exiting profiling thread"); 1785 } 1786 } 1787 } 1788 }, "Rendering Profiler"); 1789 mRenderProfiler.start(); 1790 } else { 1791 mRenderProfiler.interrupt(); 1792 mRenderProfiler = null; 1793 } 1794 } 1795 } 1796 1797 /** 1798 * Called from draw() when DEBUG_FPS is enabled 1799 */ 1800 private void trackFPS() { 1801 // Tracks frames per second drawn. First value in a series of draws may be bogus 1802 // because it down not account for the intervening idle time 1803 long nowTime = System.currentTimeMillis(); 1804 if (mFpsStartTime < 0) { 1805 mFpsStartTime = mFpsPrevTime = nowTime; 1806 mFpsNumFrames = 0; 1807 } else { 1808 ++mFpsNumFrames; 1809 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1810 long frameTime = nowTime - mFpsPrevTime; 1811 long totalTime = nowTime - mFpsStartTime; 1812 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1813 mFpsPrevTime = nowTime; 1814 if (totalTime > 1000) { 1815 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1816 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1817 mFpsStartTime = nowTime; 1818 mFpsNumFrames = 0; 1819 } 1820 } 1821 } 1822 1823 private void draw(boolean fullRedrawNeeded) { 1824 Surface surface = mSurface; 1825 if (surface == null || !surface.isValid()) { 1826 return; 1827 } 1828 1829 if (DEBUG_FPS) { 1830 trackFPS(); 1831 } 1832 1833 if (!sFirstDrawComplete) { 1834 synchronized (sFirstDrawHandlers) { 1835 sFirstDrawComplete = true; 1836 final int count = sFirstDrawHandlers.size(); 1837 for (int i = 0; i< count; i++) { 1838 post(sFirstDrawHandlers.get(i)); 1839 } 1840 } 1841 } 1842 1843 scrollToRectOrFocus(null, false); 1844 1845 if (mAttachInfo.mViewScrollChanged) { 1846 mAttachInfo.mViewScrollChanged = false; 1847 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1848 } 1849 1850 int yoff; 1851 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1852 if (animating) { 1853 yoff = mScroller.getCurrY(); 1854 } else { 1855 yoff = mScrollY; 1856 } 1857 if (mCurScrollY != yoff) { 1858 mCurScrollY = yoff; 1859 fullRedrawNeeded = true; 1860 } 1861 float appScale = mAttachInfo.mApplicationScale; 1862 boolean scalingRequired = mAttachInfo.mScalingRequired; 1863 1864 int resizeAlpha = 0; 1865 if (mResizeBuffer != null) { 1866 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1867 if (deltaTime < mResizeBufferDuration) { 1868 float amt = deltaTime/(float) mResizeBufferDuration; 1869 amt = mResizeInterpolator.getInterpolation(amt); 1870 animating = true; 1871 resizeAlpha = 255 - (int)(amt*255); 1872 } else { 1873 disposeResizeBuffer(); 1874 } 1875 } 1876 1877 Rect dirty = mDirty; 1878 if (mSurfaceHolder != null) { 1879 // The app owns the surface, we won't draw. 1880 dirty.setEmpty(); 1881 if (animating) { 1882 if (mScroller != null) { 1883 mScroller.abortAnimation(); 1884 } 1885 disposeResizeBuffer(); 1886 } 1887 return; 1888 } 1889 1890 if (fullRedrawNeeded) { 1891 mAttachInfo.mIgnoreDirtyState = true; 1892 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1893 } 1894 1895 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1896 if (!dirty.isEmpty() || mIsAnimating) { 1897 mIsAnimating = false; 1898 mHardwareYOffset = yoff; 1899 mResizeAlpha = resizeAlpha; 1900 1901 mCurrentDirty.set(dirty); 1902 mCurrentDirty.union(mPreviousDirty); 1903 mPreviousDirty.set(dirty); 1904 dirty.setEmpty(); 1905 1906 Rect currentDirty = mCurrentDirty; 1907 if (animating) { 1908 currentDirty = null; 1909 } 1910 1911 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1912 mPreviousDirty.set(0, 0, mWidth, mHeight); 1913 } 1914 } 1915 1916 if (animating) { 1917 mFullRedrawNeeded = true; 1918 scheduleTraversals(); 1919 } 1920 1921 return; 1922 } 1923 1924 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1925 Log.v(TAG, "Draw " + mView + "/" 1926 + mWindowAttributes.getTitle() 1927 + ": dirty={" + dirty.left + "," + dirty.top 1928 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1929 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1930 appScale + ", width=" + mWidth + ", height=" + mHeight); 1931 } 1932 1933 if (!dirty.isEmpty() || mIsAnimating) { 1934 Canvas canvas; 1935 try { 1936 int left = dirty.left; 1937 int top = dirty.top; 1938 int right = dirty.right; 1939 int bottom = dirty.bottom; 1940 1941 final long lockCanvasStartTime; 1942 if (ViewDebug.DEBUG_LATENCY) { 1943 lockCanvasStartTime = System.nanoTime(); 1944 } 1945 1946 canvas = surface.lockCanvas(dirty); 1947 1948 if (ViewDebug.DEBUG_LATENCY) { 1949 long now = System.nanoTime(); 1950 Log.d(TAG, "Latency: Spent " 1951 + ((now - lockCanvasStartTime) * 0.000001f) 1952 + "ms waiting for surface.lockCanvas()"); 1953 } 1954 1955 if (left != dirty.left || top != dirty.top || right != dirty.right || 1956 bottom != dirty.bottom) { 1957 mAttachInfo.mIgnoreDirtyState = true; 1958 } 1959 1960 // TODO: Do this in native 1961 canvas.setDensity(mDensity); 1962 } catch (Surface.OutOfResourcesException e) { 1963 Log.e(TAG, "OutOfResourcesException locking surface", e); 1964 try { 1965 if (!sWindowSession.outOfMemory(mWindow)) { 1966 Slog.w(TAG, "No processes killed for memory; killing self"); 1967 Process.killProcess(Process.myPid()); 1968 } 1969 } catch (RemoteException ex) { 1970 } 1971 mLayoutRequested = true; // ask wm for a new surface next time. 1972 return; 1973 } catch (IllegalArgumentException e) { 1974 Log.e(TAG, "IllegalArgumentException locking surface", e); 1975 // Don't assume this is due to out of memory, it could be 1976 // something else, and if it is something else then we could 1977 // kill stuff (or ourself) for no reason. 1978 mLayoutRequested = true; // ask wm for a new surface next time. 1979 return; 1980 } 1981 1982 try { 1983 if (!dirty.isEmpty() || mIsAnimating) { 1984 long startTime = 0L; 1985 1986 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1987 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1988 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1989 //canvas.drawARGB(255, 255, 0, 0); 1990 } 1991 1992 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1993 startTime = SystemClock.elapsedRealtime(); 1994 } 1995 1996 // If this bitmap's format includes an alpha channel, we 1997 // need to clear it before drawing so that the child will 1998 // properly re-composite its drawing on a transparent 1999 // background. This automatically respects the clip/dirty region 2000 // or 2001 // If we are applying an offset, we need to clear the area 2002 // where the offset doesn't appear to avoid having garbage 2003 // left in the blank areas. 2004 if (!canvas.isOpaque() || yoff != 0) { 2005 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2006 } 2007 2008 dirty.setEmpty(); 2009 mIsAnimating = false; 2010 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2011 mView.mPrivateFlags |= View.DRAWN; 2012 2013 if (DEBUG_DRAW) { 2014 Context cxt = mView.getContext(); 2015 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2016 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2017 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2018 } 2019 try { 2020 canvas.translate(0, -yoff); 2021 if (mTranslator != null) { 2022 mTranslator.translateCanvas(canvas); 2023 } 2024 canvas.setScreenDensity(scalingRequired 2025 ? DisplayMetrics.DENSITY_DEVICE : 0); 2026 mAttachInfo.mSetIgnoreDirtyState = false; 2027 mView.draw(canvas); 2028 } finally { 2029 if (!mAttachInfo.mSetIgnoreDirtyState) { 2030 // Only clear the flag if it was not set during the mView.draw() call 2031 mAttachInfo.mIgnoreDirtyState = false; 2032 } 2033 } 2034 2035 if (false && ViewDebug.consistencyCheckEnabled) { 2036 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2037 } 2038 2039 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2040 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2041 } 2042 } 2043 2044 } finally { 2045 surface.unlockCanvasAndPost(canvas); 2046 } 2047 } 2048 2049 if (LOCAL_LOGV) { 2050 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2051 } 2052 2053 if (animating) { 2054 mFullRedrawNeeded = true; 2055 scheduleTraversals(); 2056 } 2057 } 2058 2059 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2060 final View.AttachInfo attachInfo = mAttachInfo; 2061 final Rect ci = attachInfo.mContentInsets; 2062 final Rect vi = attachInfo.mVisibleInsets; 2063 int scrollY = 0; 2064 boolean handled = false; 2065 2066 if (vi.left > ci.left || vi.top > ci.top 2067 || vi.right > ci.right || vi.bottom > ci.bottom) { 2068 // We'll assume that we aren't going to change the scroll 2069 // offset, since we want to avoid that unless it is actually 2070 // going to make the focus visible... otherwise we scroll 2071 // all over the place. 2072 scrollY = mScrollY; 2073 // We can be called for two different situations: during a draw, 2074 // to update the scroll position if the focus has changed (in which 2075 // case 'rectangle' is null), or in response to a 2076 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2077 // is non-null and we just want to scroll to whatever that 2078 // rectangle is). 2079 View focus = mRealFocusedView; 2080 2081 // When in touch mode, focus points to the previously focused view, 2082 // which may have been removed from the view hierarchy. The following 2083 // line checks whether the view is still in our hierarchy. 2084 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2085 mRealFocusedView = null; 2086 return false; 2087 } 2088 2089 if (focus != mLastScrolledFocus) { 2090 // If the focus has changed, then ignore any requests to scroll 2091 // to a rectangle; first we want to make sure the entire focus 2092 // view is visible. 2093 rectangle = null; 2094 } 2095 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2096 + " rectangle=" + rectangle + " ci=" + ci 2097 + " vi=" + vi); 2098 if (focus == mLastScrolledFocus && !mScrollMayChange 2099 && rectangle == null) { 2100 // Optimization: if the focus hasn't changed since last 2101 // time, and no layout has happened, then just leave things 2102 // as they are. 2103 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2104 + mScrollY + " vi=" + vi.toShortString()); 2105 } else if (focus != null) { 2106 // We need to determine if the currently focused view is 2107 // within the visible part of the window and, if not, apply 2108 // a pan so it can be seen. 2109 mLastScrolledFocus = focus; 2110 mScrollMayChange = false; 2111 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2112 // Try to find the rectangle from the focus view. 2113 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2114 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2115 + mView.getWidth() + " h=" + mView.getHeight() 2116 + " ci=" + ci.toShortString() 2117 + " vi=" + vi.toShortString()); 2118 if (rectangle == null) { 2119 focus.getFocusedRect(mTempRect); 2120 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2121 + ": focusRect=" + mTempRect.toShortString()); 2122 if (mView instanceof ViewGroup) { 2123 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2124 focus, mTempRect); 2125 } 2126 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2127 "Focus in window: focusRect=" 2128 + mTempRect.toShortString() 2129 + " visRect=" + mVisRect.toShortString()); 2130 } else { 2131 mTempRect.set(rectangle); 2132 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2133 "Request scroll to rect: " 2134 + mTempRect.toShortString() 2135 + " visRect=" + mVisRect.toShortString()); 2136 } 2137 if (mTempRect.intersect(mVisRect)) { 2138 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2139 "Focus window visible rect: " 2140 + mTempRect.toShortString()); 2141 if (mTempRect.height() > 2142 (mView.getHeight()-vi.top-vi.bottom)) { 2143 // If the focus simply is not going to fit, then 2144 // best is probably just to leave things as-is. 2145 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2146 "Too tall; leaving scrollY=" + scrollY); 2147 } else if ((mTempRect.top-scrollY) < vi.top) { 2148 scrollY -= vi.top - (mTempRect.top-scrollY); 2149 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2150 "Top covered; scrollY=" + scrollY); 2151 } else if ((mTempRect.bottom-scrollY) 2152 > (mView.getHeight()-vi.bottom)) { 2153 scrollY += (mTempRect.bottom-scrollY) 2154 - (mView.getHeight()-vi.bottom); 2155 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2156 "Bottom covered; scrollY=" + scrollY); 2157 } 2158 handled = true; 2159 } 2160 } 2161 } 2162 } 2163 2164 if (scrollY != mScrollY) { 2165 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2166 + mScrollY + " , new=" + scrollY); 2167 if (!immediate && mResizeBuffer == null) { 2168 if (mScroller == null) { 2169 mScroller = new Scroller(mView.getContext()); 2170 } 2171 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2172 } else if (mScroller != null) { 2173 mScroller.abortAnimation(); 2174 } 2175 mScrollY = scrollY; 2176 } 2177 2178 return handled; 2179 } 2180 2181 public void requestChildFocus(View child, View focused) { 2182 checkThread(); 2183 if (mFocusedView != focused) { 2184 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2185 scheduleTraversals(); 2186 } 2187 mFocusedView = mRealFocusedView = focused; 2188 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2189 + mFocusedView); 2190 } 2191 2192 public void clearChildFocus(View child) { 2193 checkThread(); 2194 2195 View oldFocus = mFocusedView; 2196 2197 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2198 mFocusedView = mRealFocusedView = null; 2199 if (mView != null && !mView.hasFocus()) { 2200 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2201 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2202 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2203 } 2204 } else if (oldFocus != null) { 2205 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2206 } 2207 } 2208 2209 2210 public void focusableViewAvailable(View v) { 2211 checkThread(); 2212 2213 if (mView != null) { 2214 if (!mView.hasFocus()) { 2215 v.requestFocus(); 2216 } else { 2217 // the one case where will transfer focus away from the current one 2218 // is if the current view is a view group that prefers to give focus 2219 // to its children first AND the view is a descendant of it. 2220 mFocusedView = mView.findFocus(); 2221 boolean descendantsHaveDibsOnFocus = 2222 (mFocusedView instanceof ViewGroup) && 2223 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2224 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2225 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2226 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2227 v.requestFocus(); 2228 } 2229 } 2230 } 2231 } 2232 2233 public void recomputeViewAttributes(View child) { 2234 checkThread(); 2235 if (mView == child) { 2236 mAttachInfo.mRecomputeGlobalAttributes = true; 2237 if (!mWillDrawSoon) { 2238 scheduleTraversals(); 2239 } 2240 } 2241 } 2242 2243 void dispatchDetachedFromWindow() { 2244 if (mView != null && mView.mAttachInfo != null) { 2245 if (mAttachInfo.mHardwareRenderer != null && 2246 mAttachInfo.mHardwareRenderer.isEnabled()) { 2247 mAttachInfo.mHardwareRenderer.validate(); 2248 } 2249 mView.dispatchDetachedFromWindow(); 2250 } 2251 2252 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2253 mAccessibilityManager.removeAccessibilityStateChangeListener( 2254 mAccessibilityInteractionConnectionManager); 2255 removeSendWindowContentChangedCallback(); 2256 2257 mView = null; 2258 mAttachInfo.mRootView = null; 2259 mAttachInfo.mSurface = null; 2260 2261 destroyHardwareRenderer(); 2262 2263 mSurface.release(); 2264 2265 if (mInputQueueCallback != null && mInputQueue != null) { 2266 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2267 mInputQueueCallback = null; 2268 mInputQueue = null; 2269 } else if (mInputChannel != null) { 2270 InputQueue.unregisterInputChannel(mInputChannel); 2271 } 2272 try { 2273 sWindowSession.remove(mWindow); 2274 } catch (RemoteException e) { 2275 } 2276 2277 // Dispose the input channel after removing the window so the Window Manager 2278 // doesn't interpret the input channel being closed as an abnormal termination. 2279 if (mInputChannel != null) { 2280 mInputChannel.dispose(); 2281 mInputChannel = null; 2282 } 2283 } 2284 2285 void updateConfiguration(Configuration config, boolean force) { 2286 if (DEBUG_CONFIGURATION) Log.v(TAG, 2287 "Applying new config to window " 2288 + mWindowAttributes.getTitle() 2289 + ": " + config); 2290 2291 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2292 if (ci != null) { 2293 config = new Configuration(config); 2294 ci.applyToConfiguration(config); 2295 } 2296 2297 synchronized (sConfigCallbacks) { 2298 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2299 sConfigCallbacks.get(i).onConfigurationChanged(config); 2300 } 2301 } 2302 if (mView != null) { 2303 // At this point the resources have been updated to 2304 // have the most recent config, whatever that is. Use 2305 // the on in them which may be newer. 2306 config = mView.getResources().getConfiguration(); 2307 if (force || mLastConfiguration.diff(config) != 0) { 2308 mLastConfiguration.setTo(config); 2309 mView.dispatchConfigurationChanged(config); 2310 } 2311 } 2312 } 2313 2314 /** 2315 * Return true if child is an ancestor of parent, (or equal to the parent). 2316 */ 2317 private static boolean isViewDescendantOf(View child, View parent) { 2318 if (child == parent) { 2319 return true; 2320 } 2321 2322 final ViewParent theParent = child.getParent(); 2323 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2324 } 2325 2326 private static void forceLayout(View view) { 2327 view.forceLayout(); 2328 if (view instanceof ViewGroup) { 2329 ViewGroup group = (ViewGroup) view; 2330 final int count = group.getChildCount(); 2331 for (int i = 0; i < count; i++) { 2332 forceLayout(group.getChildAt(i)); 2333 } 2334 } 2335 } 2336 2337 public final static int DO_TRAVERSAL = 1000; 2338 public final static int DIE = 1001; 2339 public final static int RESIZED = 1002; 2340 public final static int RESIZED_REPORT = 1003; 2341 public final static int WINDOW_FOCUS_CHANGED = 1004; 2342 public final static int DISPATCH_KEY = 1005; 2343 public final static int DISPATCH_POINTER = 1006; 2344 public final static int DISPATCH_TRACKBALL = 1007; 2345 public final static int DISPATCH_APP_VISIBILITY = 1008; 2346 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2347 public final static int FINISHED_EVENT = 1010; 2348 public final static int DISPATCH_KEY_FROM_IME = 1011; 2349 public final static int FINISH_INPUT_CONNECTION = 1012; 2350 public final static int CHECK_FOCUS = 1013; 2351 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2352 public final static int DISPATCH_DRAG_EVENT = 1015; 2353 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2354 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2355 public final static int DISPATCH_GENERIC_MOTION = 1018; 2356 public final static int UPDATE_CONFIGURATION = 1019; 2357 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2358 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2359 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2360 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2361 public final static int PROCESS_INPUT_EVENTS = 1024; 2362 2363 @Override 2364 public String getMessageName(Message message) { 2365 switch (message.what) { 2366 case DO_TRAVERSAL: 2367 return "DO_TRAVERSAL"; 2368 case DIE: 2369 return "DIE"; 2370 case RESIZED: 2371 return "RESIZED"; 2372 case RESIZED_REPORT: 2373 return "RESIZED_REPORT"; 2374 case WINDOW_FOCUS_CHANGED: 2375 return "WINDOW_FOCUS_CHANGED"; 2376 case DISPATCH_KEY: 2377 return "DISPATCH_KEY"; 2378 case DISPATCH_POINTER: 2379 return "DISPATCH_POINTER"; 2380 case DISPATCH_TRACKBALL: 2381 return "DISPATCH_TRACKBALL"; 2382 case DISPATCH_APP_VISIBILITY: 2383 return "DISPATCH_APP_VISIBILITY"; 2384 case DISPATCH_GET_NEW_SURFACE: 2385 return "DISPATCH_GET_NEW_SURFACE"; 2386 case FINISHED_EVENT: 2387 return "FINISHED_EVENT"; 2388 case DISPATCH_KEY_FROM_IME: 2389 return "DISPATCH_KEY_FROM_IME"; 2390 case FINISH_INPUT_CONNECTION: 2391 return "FINISH_INPUT_CONNECTION"; 2392 case CHECK_FOCUS: 2393 return "CHECK_FOCUS"; 2394 case CLOSE_SYSTEM_DIALOGS: 2395 return "CLOSE_SYSTEM_DIALOGS"; 2396 case DISPATCH_DRAG_EVENT: 2397 return "DISPATCH_DRAG_EVENT"; 2398 case DISPATCH_DRAG_LOCATION_EVENT: 2399 return "DISPATCH_DRAG_LOCATION_EVENT"; 2400 case DISPATCH_SYSTEM_UI_VISIBILITY: 2401 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2402 case DISPATCH_GENERIC_MOTION: 2403 return "DISPATCH_GENERIC_MOTION"; 2404 case UPDATE_CONFIGURATION: 2405 return "UPDATE_CONFIGURATION"; 2406 case DO_PERFORM_ACCESSIBILITY_ACTION: 2407 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2408 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2409 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2410 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2411 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2412 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2413 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2414 case PROCESS_INPUT_EVENTS: 2415 return "PROCESS_INPUT_EVENTS"; 2416 } 2417 return super.getMessageName(message); 2418 } 2419 2420 @Override 2421 public void handleMessage(Message msg) { 2422 switch (msg.what) { 2423 case View.AttachInfo.INVALIDATE_MSG: 2424 ((View) msg.obj).invalidate(); 2425 break; 2426 case View.AttachInfo.INVALIDATE_RECT_MSG: 2427 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2428 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2429 info.release(); 2430 break; 2431 case DO_TRAVERSAL: 2432 if (mProfile) { 2433 Debug.startMethodTracing("ViewAncestor"); 2434 } 2435 2436 final long traversalStartTime; 2437 if (ViewDebug.DEBUG_LATENCY) { 2438 traversalStartTime = System.nanoTime(); 2439 mLastDrawDurationNanos = 0; 2440 } 2441 2442 performTraversals(); 2443 2444 if (ViewDebug.DEBUG_LATENCY) { 2445 long now = System.nanoTime(); 2446 Log.d(TAG, "Latency: Spent " 2447 + ((now - traversalStartTime) * 0.000001f) 2448 + "ms in performTraversals(), with " 2449 + (mLastDrawDurationNanos * 0.000001f) 2450 + "ms of that time in draw()"); 2451 mLastTraversalFinishedTimeNanos = now; 2452 } 2453 2454 if (mProfile) { 2455 Debug.stopMethodTracing(); 2456 mProfile = false; 2457 } 2458 break; 2459 case FINISHED_EVENT: 2460 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2461 break; 2462 case DISPATCH_KEY: 2463 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2464 break; 2465 case DISPATCH_POINTER: 2466 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2467 break; 2468 case DISPATCH_TRACKBALL: 2469 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2470 break; 2471 case DISPATCH_GENERIC_MOTION: 2472 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2473 break; 2474 case PROCESS_INPUT_EVENTS: 2475 processInputEvents(false); 2476 break; 2477 case DISPATCH_APP_VISIBILITY: 2478 handleAppVisibility(msg.arg1 != 0); 2479 break; 2480 case DISPATCH_GET_NEW_SURFACE: 2481 handleGetNewSurface(); 2482 break; 2483 case RESIZED: 2484 ResizedInfo ri = (ResizedInfo)msg.obj; 2485 2486 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2487 && mPendingContentInsets.equals(ri.coveredInsets) 2488 && mPendingVisibleInsets.equals(ri.visibleInsets) 2489 && ((ResizedInfo)msg.obj).newConfig == null) { 2490 break; 2491 } 2492 // fall through... 2493 case RESIZED_REPORT: 2494 if (mAdded) { 2495 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2496 if (config != null) { 2497 updateConfiguration(config, false); 2498 } 2499 mWinFrame.left = 0; 2500 mWinFrame.right = msg.arg1; 2501 mWinFrame.top = 0; 2502 mWinFrame.bottom = msg.arg2; 2503 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2504 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2505 if (msg.what == RESIZED_REPORT) { 2506 mReportNextDraw = true; 2507 } 2508 2509 if (mView != null) { 2510 forceLayout(mView); 2511 } 2512 requestLayout(); 2513 } 2514 break; 2515 case WINDOW_FOCUS_CHANGED: { 2516 if (mAdded) { 2517 boolean hasWindowFocus = msg.arg1 != 0; 2518 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2519 2520 profileRendering(hasWindowFocus); 2521 2522 if (hasWindowFocus) { 2523 boolean inTouchMode = msg.arg2 != 0; 2524 ensureTouchModeLocally(inTouchMode); 2525 2526 if (mAttachInfo.mHardwareRenderer != null && 2527 mSurface != null && mSurface.isValid()) { 2528 mFullRedrawNeeded = true; 2529 try { 2530 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2531 mAttachInfo, mHolder); 2532 } catch (Surface.OutOfResourcesException e) { 2533 Log.e(TAG, "OutOfResourcesException locking surface", e); 2534 try { 2535 if (!sWindowSession.outOfMemory(mWindow)) { 2536 Slog.w(TAG, "No processes killed for memory; killing self"); 2537 Process.killProcess(Process.myPid()); 2538 } 2539 } catch (RemoteException ex) { 2540 } 2541 // Retry in a bit. 2542 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2543 return; 2544 } 2545 } 2546 } 2547 2548 mLastWasImTarget = WindowManager.LayoutParams 2549 .mayUseInputMethod(mWindowAttributes.flags); 2550 2551 InputMethodManager imm = InputMethodManager.peekInstance(); 2552 if (mView != null) { 2553 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2554 imm.startGettingWindowFocus(mView); 2555 } 2556 mAttachInfo.mKeyDispatchState.reset(); 2557 mView.dispatchWindowFocusChanged(hasWindowFocus); 2558 } 2559 2560 // Note: must be done after the focus change callbacks, 2561 // so all of the view state is set up correctly. 2562 if (hasWindowFocus) { 2563 if (imm != null && mLastWasImTarget) { 2564 imm.onWindowFocus(mView, mView.findFocus(), 2565 mWindowAttributes.softInputMode, 2566 !mHasHadWindowFocus, mWindowAttributes.flags); 2567 } 2568 // Clear the forward bit. We can just do this directly, since 2569 // the window manager doesn't care about it. 2570 mWindowAttributes.softInputMode &= 2571 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2572 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2573 .softInputMode &= 2574 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2575 mHasHadWindowFocus = true; 2576 } 2577 2578 if (hasWindowFocus && mView != null) { 2579 sendAccessibilityEvents(); 2580 } 2581 } 2582 } break; 2583 case DIE: 2584 doDie(); 2585 break; 2586 case DISPATCH_KEY_FROM_IME: { 2587 if (LOCAL_LOGV) Log.v( 2588 TAG, "Dispatching key " 2589 + msg.obj + " from IME to " + mView); 2590 KeyEvent event = (KeyEvent)msg.obj; 2591 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2592 // The IME is trying to say this event is from the 2593 // system! Bad bad bad! 2594 //noinspection UnusedAssignment 2595 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2596 } 2597 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2598 } break; 2599 case FINISH_INPUT_CONNECTION: { 2600 InputMethodManager imm = InputMethodManager.peekInstance(); 2601 if (imm != null) { 2602 imm.reportFinishInputConnection((InputConnection)msg.obj); 2603 } 2604 } break; 2605 case CHECK_FOCUS: { 2606 InputMethodManager imm = InputMethodManager.peekInstance(); 2607 if (imm != null) { 2608 imm.checkFocus(); 2609 } 2610 } break; 2611 case CLOSE_SYSTEM_DIALOGS: { 2612 if (mView != null) { 2613 mView.onCloseSystemDialogs((String)msg.obj); 2614 } 2615 } break; 2616 case DISPATCH_DRAG_EVENT: 2617 case DISPATCH_DRAG_LOCATION_EVENT: { 2618 DragEvent event = (DragEvent)msg.obj; 2619 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2620 handleDragEvent(event); 2621 } break; 2622 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2623 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2624 } break; 2625 case UPDATE_CONFIGURATION: { 2626 Configuration config = (Configuration)msg.obj; 2627 if (config.isOtherSeqNewer(mLastConfiguration)) { 2628 config = mLastConfiguration; 2629 } 2630 updateConfiguration(config, false); 2631 } break; 2632 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2633 if (mView != null) { 2634 getAccessibilityInteractionController() 2635 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2636 } 2637 } break; 2638 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2639 if (mView != null) { 2640 getAccessibilityInteractionController() 2641 .perfromAccessibilityActionUiThread(msg); 2642 } 2643 } break; 2644 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2645 if (mView != null) { 2646 getAccessibilityInteractionController() 2647 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2648 } 2649 } break; 2650 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2651 if (mView != null) { 2652 getAccessibilityInteractionController() 2653 .findAccessibilityNodeInfosByTextUiThread(msg); 2654 } 2655 } break; 2656 } 2657 } 2658 2659 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2660 if (mFinishedCallback != null) { 2661 Slog.w(TAG, "Received a new input event from the input queue but there is " 2662 + "already an unfinished input event in progress."); 2663 } 2664 2665 if (ViewDebug.DEBUG_LATENCY) { 2666 mInputEventReceiveTimeNanos = System.nanoTime(); 2667 mInputEventDeliverTimeNanos = 0; 2668 mInputEventDeliverPostImeTimeNanos = 0; 2669 } 2670 2671 mFinishedCallback = finishedCallback; 2672 } 2673 2674 private void finishInputEvent(InputEvent event, boolean handled) { 2675 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2676 2677 if (mFinishedCallback == null) { 2678 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2679 + "is finished but there is no input event actually in progress."); 2680 return; 2681 } 2682 2683 if (ViewDebug.DEBUG_LATENCY) { 2684 final long now = System.nanoTime(); 2685 final long eventTime = event.getEventTimeNano(); 2686 final StringBuilder msg = new StringBuilder(); 2687 msg.append("Latency: Spent "); 2688 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2689 msg.append("ms processing "); 2690 if (event instanceof KeyEvent) { 2691 final KeyEvent keyEvent = (KeyEvent)event; 2692 msg.append("key event, action="); 2693 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2694 } else { 2695 final MotionEvent motionEvent = (MotionEvent)event; 2696 msg.append("motion event, action="); 2697 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2698 msg.append(", historySize="); 2699 msg.append(motionEvent.getHistorySize()); 2700 } 2701 msg.append(", handled="); 2702 msg.append(handled); 2703 msg.append(", received at +"); 2704 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2705 if (mInputEventDeliverTimeNanos != 0) { 2706 msg.append("ms, delivered at +"); 2707 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2708 } 2709 if (mInputEventDeliverPostImeTimeNanos != 0) { 2710 msg.append("ms, delivered post IME at +"); 2711 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2712 } 2713 msg.append("ms, finished at +"); 2714 msg.append((now - eventTime) * 0.000001f); 2715 msg.append("ms."); 2716 Log.d(TAG, msg.toString()); 2717 } 2718 2719 mFinishedCallback.finished(handled); 2720 mFinishedCallback = null; 2721 } 2722 2723 /** 2724 * Something in the current window tells us we need to change the touch mode. For 2725 * example, we are not in touch mode, and the user touches the screen. 2726 * 2727 * If the touch mode has changed, tell the window manager, and handle it locally. 2728 * 2729 * @param inTouchMode Whether we want to be in touch mode. 2730 * @return True if the touch mode changed and focus changed was changed as a result 2731 */ 2732 boolean ensureTouchMode(boolean inTouchMode) { 2733 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2734 + "touch mode is " + mAttachInfo.mInTouchMode); 2735 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2736 2737 // tell the window manager 2738 try { 2739 sWindowSession.setInTouchMode(inTouchMode); 2740 } catch (RemoteException e) { 2741 throw new RuntimeException(e); 2742 } 2743 2744 // handle the change 2745 return ensureTouchModeLocally(inTouchMode); 2746 } 2747 2748 /** 2749 * Ensure that the touch mode for this window is set, and if it is changing, 2750 * take the appropriate action. 2751 * @param inTouchMode Whether we want to be in touch mode. 2752 * @return True if the touch mode changed and focus changed was changed as a result 2753 */ 2754 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2755 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2756 + "touch mode is " + mAttachInfo.mInTouchMode); 2757 2758 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2759 2760 mAttachInfo.mInTouchMode = inTouchMode; 2761 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2762 2763 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2764 } 2765 2766 private boolean enterTouchMode() { 2767 if (mView != null) { 2768 if (mView.hasFocus()) { 2769 // note: not relying on mFocusedView here because this could 2770 // be when the window is first being added, and mFocused isn't 2771 // set yet. 2772 final View focused = mView.findFocus(); 2773 if (focused != null && !focused.isFocusableInTouchMode()) { 2774 2775 final ViewGroup ancestorToTakeFocus = 2776 findAncestorToTakeFocusInTouchMode(focused); 2777 if (ancestorToTakeFocus != null) { 2778 // there is an ancestor that wants focus after its descendants that 2779 // is focusable in touch mode.. give it focus 2780 return ancestorToTakeFocus.requestFocus(); 2781 } else { 2782 // nothing appropriate to have focus in touch mode, clear it out 2783 mView.unFocus(); 2784 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2785 mFocusedView = null; 2786 return true; 2787 } 2788 } 2789 } 2790 } 2791 return false; 2792 } 2793 2794 2795 /** 2796 * Find an ancestor of focused that wants focus after its descendants and is 2797 * focusable in touch mode. 2798 * @param focused The currently focused view. 2799 * @return An appropriate view, or null if no such view exists. 2800 */ 2801 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2802 ViewParent parent = focused.getParent(); 2803 while (parent instanceof ViewGroup) { 2804 final ViewGroup vgParent = (ViewGroup) parent; 2805 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2806 && vgParent.isFocusableInTouchMode()) { 2807 return vgParent; 2808 } 2809 if (vgParent.isRootNamespace()) { 2810 return null; 2811 } else { 2812 parent = vgParent.getParent(); 2813 } 2814 } 2815 return null; 2816 } 2817 2818 private boolean leaveTouchMode() { 2819 if (mView != null) { 2820 if (mView.hasFocus()) { 2821 // i learned the hard way to not trust mFocusedView :) 2822 mFocusedView = mView.findFocus(); 2823 if (!(mFocusedView instanceof ViewGroup)) { 2824 // some view has focus, let it keep it 2825 return false; 2826 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2827 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2828 // some view group has focus, and doesn't prefer its children 2829 // over itself for focus, so let them keep it. 2830 return false; 2831 } 2832 } 2833 2834 // find the best view to give focus to in this brave new non-touch-mode 2835 // world 2836 final View focused = focusSearch(null, View.FOCUS_DOWN); 2837 if (focused != null) { 2838 return focused.requestFocus(View.FOCUS_DOWN); 2839 } 2840 } 2841 return false; 2842 } 2843 2844 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2845 if (ViewDebug.DEBUG_LATENCY) { 2846 mInputEventDeliverTimeNanos = System.nanoTime(); 2847 } 2848 2849 final boolean isTouchEvent = event.isTouchEvent(); 2850 if (mInputEventConsistencyVerifier != null) { 2851 if (isTouchEvent) { 2852 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2853 } else { 2854 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2855 } 2856 } 2857 2858 // If there is no view, then the event will not be handled. 2859 if (mView == null || !mAdded) { 2860 finishMotionEvent(event, sendDone, false); 2861 return; 2862 } 2863 2864 // Translate the pointer event for compatibility, if needed. 2865 if (mTranslator != null) { 2866 mTranslator.translateEventInScreenToAppWindow(event); 2867 } 2868 2869 // Enter touch mode on down or scroll. 2870 final int action = event.getAction(); 2871 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2872 ensureTouchMode(true); 2873 } 2874 2875 // Offset the scroll position. 2876 if (mCurScrollY != 0) { 2877 event.offsetLocation(0, mCurScrollY); 2878 } 2879 if (MEASURE_LATENCY) { 2880 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2881 } 2882 2883 // Remember the touch position for possible drag-initiation. 2884 if (isTouchEvent) { 2885 mLastTouchPoint.x = event.getRawX(); 2886 mLastTouchPoint.y = event.getRawY(); 2887 } 2888 2889 // Dispatch touch to view hierarchy. 2890 boolean handled = mView.dispatchPointerEvent(event); 2891 if (MEASURE_LATENCY) { 2892 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2893 } 2894 if (handled) { 2895 finishMotionEvent(event, sendDone, true); 2896 return; 2897 } 2898 2899 // Pointer event was unhandled. 2900 finishMotionEvent(event, sendDone, false); 2901 } 2902 2903 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2904 event.recycle(); 2905 if (sendDone) { 2906 finishInputEvent(event, handled); 2907 } 2908 //noinspection ConstantConditions 2909 if (LOCAL_LOGV || WATCH_POINTER) { 2910 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2911 Log.i(TAG, "Done dispatching!"); 2912 } 2913 } 2914 } 2915 2916 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2917 if (ViewDebug.DEBUG_LATENCY) { 2918 mInputEventDeliverTimeNanos = System.nanoTime(); 2919 } 2920 2921 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2922 2923 if (mInputEventConsistencyVerifier != null) { 2924 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2925 } 2926 2927 // If there is no view, then the event will not be handled. 2928 if (mView == null || !mAdded) { 2929 finishMotionEvent(event, sendDone, false); 2930 return; 2931 } 2932 2933 // Deliver the trackball event to the view. 2934 if (mView.dispatchTrackballEvent(event)) { 2935 // If we reach this, we delivered a trackball event to mView and 2936 // mView consumed it. Because we will not translate the trackball 2937 // event into a key event, touch mode will not exit, so we exit 2938 // touch mode here. 2939 ensureTouchMode(false); 2940 2941 finishMotionEvent(event, sendDone, true); 2942 mLastTrackballTime = Integer.MIN_VALUE; 2943 return; 2944 } 2945 2946 // Translate the trackball event into DPAD keys and try to deliver those. 2947 final TrackballAxis x = mTrackballAxisX; 2948 final TrackballAxis y = mTrackballAxisY; 2949 2950 long curTime = SystemClock.uptimeMillis(); 2951 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2952 // It has been too long since the last movement, 2953 // so restart at the beginning. 2954 x.reset(0); 2955 y.reset(0); 2956 mLastTrackballTime = curTime; 2957 } 2958 2959 final int action = event.getAction(); 2960 final int metaState = event.getMetaState(); 2961 switch (action) { 2962 case MotionEvent.ACTION_DOWN: 2963 x.reset(2); 2964 y.reset(2); 2965 deliverKeyEvent(new KeyEvent(curTime, curTime, 2966 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2967 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2968 InputDevice.SOURCE_KEYBOARD), false); 2969 break; 2970 case MotionEvent.ACTION_UP: 2971 x.reset(2); 2972 y.reset(2); 2973 deliverKeyEvent(new KeyEvent(curTime, curTime, 2974 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2975 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2976 InputDevice.SOURCE_KEYBOARD), false); 2977 break; 2978 } 2979 2980 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2981 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2982 + " move=" + event.getX() 2983 + " / Y=" + y.position + " step=" 2984 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2985 + " move=" + event.getY()); 2986 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2987 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2988 2989 // Generate DPAD events based on the trackball movement. 2990 // We pick the axis that has moved the most as the direction of 2991 // the DPAD. When we generate DPAD events for one axis, then the 2992 // other axis is reset -- we don't want to perform DPAD jumps due 2993 // to slight movements in the trackball when making major movements 2994 // along the other axis. 2995 int keycode = 0; 2996 int movement = 0; 2997 float accel = 1; 2998 if (xOff > yOff) { 2999 movement = x.generate((2/event.getXPrecision())); 3000 if (movement != 0) { 3001 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3002 : KeyEvent.KEYCODE_DPAD_LEFT; 3003 accel = x.acceleration; 3004 y.reset(2); 3005 } 3006 } else if (yOff > 0) { 3007 movement = y.generate((2/event.getYPrecision())); 3008 if (movement != 0) { 3009 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3010 : KeyEvent.KEYCODE_DPAD_UP; 3011 accel = y.acceleration; 3012 x.reset(2); 3013 } 3014 } 3015 3016 if (keycode != 0) { 3017 if (movement < 0) movement = -movement; 3018 int accelMovement = (int)(movement * accel); 3019 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3020 + " accelMovement=" + accelMovement 3021 + " accel=" + accel); 3022 if (accelMovement > movement) { 3023 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3024 + keycode); 3025 movement--; 3026 int repeatCount = accelMovement - movement; 3027 deliverKeyEvent(new KeyEvent(curTime, curTime, 3028 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3029 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3030 InputDevice.SOURCE_KEYBOARD), false); 3031 } 3032 while (movement > 0) { 3033 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3034 + keycode); 3035 movement--; 3036 curTime = SystemClock.uptimeMillis(); 3037 deliverKeyEvent(new KeyEvent(curTime, curTime, 3038 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3039 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3040 InputDevice.SOURCE_KEYBOARD), false); 3041 deliverKeyEvent(new KeyEvent(curTime, curTime, 3042 KeyEvent.ACTION_UP, keycode, 0, metaState, 3043 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3044 InputDevice.SOURCE_KEYBOARD), false); 3045 } 3046 mLastTrackballTime = curTime; 3047 } 3048 3049 // Unfortunately we can't tell whether the application consumed the keys, so 3050 // we always consider the trackball event handled. 3051 finishMotionEvent(event, sendDone, true); 3052 } 3053 3054 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 3055 if (ViewDebug.DEBUG_LATENCY) { 3056 mInputEventDeliverTimeNanos = System.nanoTime(); 3057 } 3058 3059 if (mInputEventConsistencyVerifier != null) { 3060 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3061 } 3062 3063 final int source = event.getSource(); 3064 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3065 3066 // If there is no view, then the event will not be handled. 3067 if (mView == null || !mAdded) { 3068 if (isJoystick) { 3069 updateJoystickDirection(event, false); 3070 } 3071 finishMotionEvent(event, sendDone, false); 3072 return; 3073 } 3074 3075 // Deliver the event to the view. 3076 if (mView.dispatchGenericMotionEvent(event)) { 3077 if (isJoystick) { 3078 updateJoystickDirection(event, false); 3079 } 3080 finishMotionEvent(event, sendDone, true); 3081 return; 3082 } 3083 3084 if (isJoystick) { 3085 // Translate the joystick event into DPAD keys and try to deliver those. 3086 updateJoystickDirection(event, true); 3087 finishMotionEvent(event, sendDone, true); 3088 } else { 3089 finishMotionEvent(event, sendDone, false); 3090 } 3091 } 3092 3093 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3094 final long time = event.getEventTime(); 3095 final int metaState = event.getMetaState(); 3096 final int deviceId = event.getDeviceId(); 3097 final int source = event.getSource(); 3098 3099 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3100 if (xDirection == 0) { 3101 xDirection = joystickAxisValueToDirection(event.getX()); 3102 } 3103 3104 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3105 if (yDirection == 0) { 3106 yDirection = joystickAxisValueToDirection(event.getY()); 3107 } 3108 3109 if (xDirection != mLastJoystickXDirection) { 3110 if (mLastJoystickXKeyCode != 0) { 3111 deliverKeyEvent(new KeyEvent(time, time, 3112 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3113 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3114 mLastJoystickXKeyCode = 0; 3115 } 3116 3117 mLastJoystickXDirection = xDirection; 3118 3119 if (xDirection != 0 && synthesizeNewKeys) { 3120 mLastJoystickXKeyCode = xDirection > 0 3121 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3122 deliverKeyEvent(new KeyEvent(time, time, 3123 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3124 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3125 } 3126 } 3127 3128 if (yDirection != mLastJoystickYDirection) { 3129 if (mLastJoystickYKeyCode != 0) { 3130 deliverKeyEvent(new KeyEvent(time, time, 3131 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3132 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3133 mLastJoystickYKeyCode = 0; 3134 } 3135 3136 mLastJoystickYDirection = yDirection; 3137 3138 if (yDirection != 0 && synthesizeNewKeys) { 3139 mLastJoystickYKeyCode = yDirection > 0 3140 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3141 deliverKeyEvent(new KeyEvent(time, time, 3142 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3143 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3144 } 3145 } 3146 } 3147 3148 private static int joystickAxisValueToDirection(float value) { 3149 if (value >= 0.5f) { 3150 return 1; 3151 } else if (value <= -0.5f) { 3152 return -1; 3153 } else { 3154 return 0; 3155 } 3156 } 3157 3158 /** 3159 * Returns true if the key is used for keyboard navigation. 3160 * @param keyEvent The key event. 3161 * @return True if the key is used for keyboard navigation. 3162 */ 3163 private static boolean isNavigationKey(KeyEvent keyEvent) { 3164 switch (keyEvent.getKeyCode()) { 3165 case KeyEvent.KEYCODE_DPAD_LEFT: 3166 case KeyEvent.KEYCODE_DPAD_RIGHT: 3167 case KeyEvent.KEYCODE_DPAD_UP: 3168 case KeyEvent.KEYCODE_DPAD_DOWN: 3169 case KeyEvent.KEYCODE_DPAD_CENTER: 3170 case KeyEvent.KEYCODE_PAGE_UP: 3171 case KeyEvent.KEYCODE_PAGE_DOWN: 3172 case KeyEvent.KEYCODE_MOVE_HOME: 3173 case KeyEvent.KEYCODE_MOVE_END: 3174 case KeyEvent.KEYCODE_TAB: 3175 case KeyEvent.KEYCODE_SPACE: 3176 case KeyEvent.KEYCODE_ENTER: 3177 return true; 3178 } 3179 return false; 3180 } 3181 3182 /** 3183 * Returns true if the key is used for typing. 3184 * @param keyEvent The key event. 3185 * @return True if the key is used for typing. 3186 */ 3187 private static boolean isTypingKey(KeyEvent keyEvent) { 3188 return keyEvent.getUnicodeChar() > 0; 3189 } 3190 3191 /** 3192 * See if the key event means we should leave touch mode (and leave touch mode if so). 3193 * @param event The key event. 3194 * @return Whether this key event should be consumed (meaning the act of 3195 * leaving touch mode alone is considered the event). 3196 */ 3197 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3198 // Only relevant in touch mode. 3199 if (!mAttachInfo.mInTouchMode) { 3200 return false; 3201 } 3202 3203 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3204 final int action = event.getAction(); 3205 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3206 return false; 3207 } 3208 3209 // Don't leave touch mode if the IME told us not to. 3210 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3211 return false; 3212 } 3213 3214 // If the key can be used for keyboard navigation then leave touch mode 3215 // and select a focused view if needed (in ensureTouchMode). 3216 // When a new focused view is selected, we consume the navigation key because 3217 // navigation doesn't make much sense unless a view already has focus so 3218 // the key's purpose is to set focus. 3219 if (isNavigationKey(event)) { 3220 return ensureTouchMode(false); 3221 } 3222 3223 // If the key can be used for typing then leave touch mode 3224 // and select a focused view if needed (in ensureTouchMode). 3225 // Always allow the view to process the typing key. 3226 if (isTypingKey(event)) { 3227 ensureTouchMode(false); 3228 return false; 3229 } 3230 3231 return false; 3232 } 3233 3234 int enqueuePendingEvent(Object event, boolean sendDone) { 3235 int seq = mPendingEventSeq+1; 3236 if (seq < 0) seq = 0; 3237 mPendingEventSeq = seq; 3238 mPendingEvents.put(seq, event); 3239 return sendDone ? seq : -seq; 3240 } 3241 3242 Object retrievePendingEvent(int seq) { 3243 if (seq < 0) seq = -seq; 3244 Object event = mPendingEvents.get(seq); 3245 if (event != null) { 3246 mPendingEvents.remove(seq); 3247 } 3248 return event; 3249 } 3250 3251 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3252 if (ViewDebug.DEBUG_LATENCY) { 3253 mInputEventDeliverTimeNanos = System.nanoTime(); 3254 } 3255 3256 if (mInputEventConsistencyVerifier != null) { 3257 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3258 } 3259 3260 // If there is no view, then the event will not be handled. 3261 if (mView == null || !mAdded) { 3262 finishKeyEvent(event, sendDone, false); 3263 return; 3264 } 3265 3266 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3267 3268 // Perform predispatching before the IME. 3269 if (mView.dispatchKeyEventPreIme(event)) { 3270 finishKeyEvent(event, sendDone, true); 3271 return; 3272 } 3273 3274 // Dispatch to the IME before propagating down the view hierarchy. 3275 // The IME will eventually call back into handleFinishedEvent. 3276 if (mLastWasImTarget) { 3277 InputMethodManager imm = InputMethodManager.peekInstance(); 3278 if (imm != null) { 3279 int seq = enqueuePendingEvent(event, sendDone); 3280 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3281 + seq + " event=" + event); 3282 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3283 return; 3284 } 3285 } 3286 3287 // Not dispatching to IME, continue with post IME actions. 3288 deliverKeyEventPostIme(event, sendDone); 3289 } 3290 3291 private void handleFinishedEvent(int seq, boolean handled) { 3292 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3293 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3294 + " handled=" + handled + " event=" + event); 3295 if (event != null) { 3296 final boolean sendDone = seq >= 0; 3297 if (handled) { 3298 finishKeyEvent(event, sendDone, true); 3299 } else { 3300 deliverKeyEventPostIme(event, sendDone); 3301 } 3302 } 3303 } 3304 3305 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3306 if (ViewDebug.DEBUG_LATENCY) { 3307 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3308 } 3309 3310 // If the view went away, then the event will not be handled. 3311 if (mView == null || !mAdded) { 3312 finishKeyEvent(event, sendDone, false); 3313 return; 3314 } 3315 3316 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3317 if (checkForLeavingTouchModeAndConsume(event)) { 3318 finishKeyEvent(event, sendDone, true); 3319 return; 3320 } 3321 3322 // Make sure the fallback event policy sees all keys that will be delivered to the 3323 // view hierarchy. 3324 mFallbackEventHandler.preDispatchKeyEvent(event); 3325 3326 // Deliver the key to the view hierarchy. 3327 if (mView.dispatchKeyEvent(event)) { 3328 finishKeyEvent(event, sendDone, true); 3329 return; 3330 } 3331 3332 // If the Control modifier is held, try to interpret the key as a shortcut. 3333 if (event.getAction() == KeyEvent.ACTION_UP 3334 && event.isCtrlPressed() 3335 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3336 if (mView.dispatchKeyShortcutEvent(event)) { 3337 finishKeyEvent(event, sendDone, true); 3338 return; 3339 } 3340 } 3341 3342 // Apply the fallback event policy. 3343 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3344 finishKeyEvent(event, sendDone, true); 3345 return; 3346 } 3347 3348 // Handle automatic focus changes. 3349 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3350 int direction = 0; 3351 switch (event.getKeyCode()) { 3352 case KeyEvent.KEYCODE_DPAD_LEFT: 3353 if (event.hasNoModifiers()) { 3354 direction = View.FOCUS_LEFT; 3355 } 3356 break; 3357 case KeyEvent.KEYCODE_DPAD_RIGHT: 3358 if (event.hasNoModifiers()) { 3359 direction = View.FOCUS_RIGHT; 3360 } 3361 break; 3362 case KeyEvent.KEYCODE_DPAD_UP: 3363 if (event.hasNoModifiers()) { 3364 direction = View.FOCUS_UP; 3365 } 3366 break; 3367 case KeyEvent.KEYCODE_DPAD_DOWN: 3368 if (event.hasNoModifiers()) { 3369 direction = View.FOCUS_DOWN; 3370 } 3371 break; 3372 case KeyEvent.KEYCODE_TAB: 3373 if (event.hasNoModifiers()) { 3374 direction = View.FOCUS_FORWARD; 3375 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3376 direction = View.FOCUS_BACKWARD; 3377 } 3378 break; 3379 } 3380 3381 if (direction != 0) { 3382 View focused = mView != null ? mView.findFocus() : null; 3383 if (focused != null) { 3384 View v = focused.focusSearch(direction); 3385 if (v != null && v != focused) { 3386 // do the math the get the interesting rect 3387 // of previous focused into the coord system of 3388 // newly focused view 3389 focused.getFocusedRect(mTempRect); 3390 if (mView instanceof ViewGroup) { 3391 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3392 focused, mTempRect); 3393 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3394 v, mTempRect); 3395 } 3396 if (v.requestFocus(direction, mTempRect)) { 3397 playSoundEffect( 3398 SoundEffectConstants.getContantForFocusDirection(direction)); 3399 finishKeyEvent(event, sendDone, true); 3400 return; 3401 } 3402 } 3403 3404 // Give the focused view a last chance to handle the dpad key. 3405 if (mView.dispatchUnhandledMove(focused, direction)) { 3406 finishKeyEvent(event, sendDone, true); 3407 return; 3408 } 3409 } 3410 } 3411 } 3412 3413 // Key was unhandled. 3414 finishKeyEvent(event, sendDone, false); 3415 } 3416 3417 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3418 if (sendDone) { 3419 finishInputEvent(event, handled); 3420 } 3421 } 3422 3423 /* drag/drop */ 3424 void setLocalDragState(Object obj) { 3425 mLocalDragState = obj; 3426 } 3427 3428 private void handleDragEvent(DragEvent event) { 3429 // From the root, only drag start/end/location are dispatched. entered/exited 3430 // are determined and dispatched by the viewgroup hierarchy, who then report 3431 // that back here for ultimate reporting back to the framework. 3432 if (mView != null && mAdded) { 3433 final int what = event.mAction; 3434 3435 if (what == DragEvent.ACTION_DRAG_EXITED) { 3436 // A direct EXITED event means that the window manager knows we've just crossed 3437 // a window boundary, so the current drag target within this one must have 3438 // just been exited. Send it the usual notifications and then we're done 3439 // for now. 3440 mView.dispatchDragEvent(event); 3441 } else { 3442 // Cache the drag description when the operation starts, then fill it in 3443 // on subsequent calls as a convenience 3444 if (what == DragEvent.ACTION_DRAG_STARTED) { 3445 mCurrentDragView = null; // Start the current-recipient tracking 3446 mDragDescription = event.mClipDescription; 3447 } else { 3448 event.mClipDescription = mDragDescription; 3449 } 3450 3451 // For events with a [screen] location, translate into window coordinates 3452 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3453 mDragPoint.set(event.mX, event.mY); 3454 if (mTranslator != null) { 3455 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3456 } 3457 3458 if (mCurScrollY != 0) { 3459 mDragPoint.offset(0, mCurScrollY); 3460 } 3461 3462 event.mX = mDragPoint.x; 3463 event.mY = mDragPoint.y; 3464 } 3465 3466 // Remember who the current drag target is pre-dispatch 3467 final View prevDragView = mCurrentDragView; 3468 3469 // Now dispatch the drag/drop event 3470 boolean result = mView.dispatchDragEvent(event); 3471 3472 // If we changed apparent drag target, tell the OS about it 3473 if (prevDragView != mCurrentDragView) { 3474 try { 3475 if (prevDragView != null) { 3476 sWindowSession.dragRecipientExited(mWindow); 3477 } 3478 if (mCurrentDragView != null) { 3479 sWindowSession.dragRecipientEntered(mWindow); 3480 } 3481 } catch (RemoteException e) { 3482 Slog.e(TAG, "Unable to note drag target change"); 3483 } 3484 } 3485 3486 // Report the drop result when we're done 3487 if (what == DragEvent.ACTION_DROP) { 3488 mDragDescription = null; 3489 try { 3490 Log.i(TAG, "Reporting drop result: " + result); 3491 sWindowSession.reportDropResult(mWindow, result); 3492 } catch (RemoteException e) { 3493 Log.e(TAG, "Unable to report drop result"); 3494 } 3495 } 3496 3497 // When the drag operation ends, release any local state object 3498 // that may have been in use 3499 if (what == DragEvent.ACTION_DRAG_ENDED) { 3500 setLocalDragState(null); 3501 } 3502 } 3503 } 3504 event.recycle(); 3505 } 3506 3507 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3508 if (mSeq != args.seq) { 3509 // The sequence has changed, so we need to update our value and make 3510 // sure to do a traversal afterward so the window manager is given our 3511 // most recent data. 3512 mSeq = args.seq; 3513 mAttachInfo.mForceReportNewAttributes = true; 3514 scheduleTraversals(); 3515 } 3516 if (mView == null) return; 3517 if (args.localChanges != 0) { 3518 if (mAttachInfo != null) { 3519 mAttachInfo.mSystemUiVisibility = 3520 (mAttachInfo.mSystemUiVisibility&~args.localChanges) 3521 | (args.localValue&args.localChanges); 3522 } 3523 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3524 mAttachInfo.mRecomputeGlobalAttributes = true; 3525 scheduleTraversals(); 3526 } 3527 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3528 } 3529 3530 public void getLastTouchPoint(Point outLocation) { 3531 outLocation.x = (int) mLastTouchPoint.x; 3532 outLocation.y = (int) mLastTouchPoint.y; 3533 } 3534 3535 public void setDragFocus(View newDragTarget) { 3536 if (mCurrentDragView != newDragTarget) { 3537 mCurrentDragView = newDragTarget; 3538 } 3539 } 3540 3541 private AudioManager getAudioManager() { 3542 if (mView == null) { 3543 throw new IllegalStateException("getAudioManager called when there is no mView"); 3544 } 3545 if (mAudioManager == null) { 3546 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3547 } 3548 return mAudioManager; 3549 } 3550 3551 public AccessibilityInteractionController getAccessibilityInteractionController() { 3552 if (mView == null) { 3553 throw new IllegalStateException("getAccessibilityInteractionController" 3554 + " called when there is no mView"); 3555 } 3556 if (mAccessibilityInteractionController == null) { 3557 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3558 } 3559 return mAccessibilityInteractionController; 3560 } 3561 3562 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3563 boolean insetsPending) throws RemoteException { 3564 3565 float appScale = mAttachInfo.mApplicationScale; 3566 boolean restore = false; 3567 if (params != null && mTranslator != null) { 3568 restore = true; 3569 params.backup(); 3570 mTranslator.translateWindowLayout(params); 3571 } 3572 if (params != null) { 3573 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3574 } 3575 mPendingConfiguration.seq = 0; 3576 //Log.d(TAG, ">>>>>> CALLING relayout"); 3577 if (params != null && mOrigWindowType != params.type) { 3578 // For compatibility with old apps, don't crash here. 3579 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3580 Slog.w(TAG, "Window type can not be changed after " 3581 + "the window is added; ignoring change of " + mView); 3582 params.type = mOrigWindowType; 3583 } 3584 } 3585 int relayoutResult = sWindowSession.relayout( 3586 mWindow, mSeq, params, 3587 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3588 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3589 viewVisibility, insetsPending, mWinFrame, 3590 mPendingContentInsets, mPendingVisibleInsets, 3591 mPendingConfiguration, mSurface); 3592 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3593 if (restore) { 3594 params.restore(); 3595 } 3596 3597 if (mTranslator != null) { 3598 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3599 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3600 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3601 } 3602 return relayoutResult; 3603 } 3604 3605 /** 3606 * {@inheritDoc} 3607 */ 3608 public void playSoundEffect(int effectId) { 3609 checkThread(); 3610 3611 try { 3612 final AudioManager audioManager = getAudioManager(); 3613 3614 switch (effectId) { 3615 case SoundEffectConstants.CLICK: 3616 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3617 return; 3618 case SoundEffectConstants.NAVIGATION_DOWN: 3619 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3620 return; 3621 case SoundEffectConstants.NAVIGATION_LEFT: 3622 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3623 return; 3624 case SoundEffectConstants.NAVIGATION_RIGHT: 3625 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3626 return; 3627 case SoundEffectConstants.NAVIGATION_UP: 3628 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3629 return; 3630 default: 3631 throw new IllegalArgumentException("unknown effect id " + effectId + 3632 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3633 } 3634 } catch (IllegalStateException e) { 3635 // Exception thrown by getAudioManager() when mView is null 3636 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3637 e.printStackTrace(); 3638 } 3639 } 3640 3641 /** 3642 * {@inheritDoc} 3643 */ 3644 public boolean performHapticFeedback(int effectId, boolean always) { 3645 try { 3646 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3647 } catch (RemoteException e) { 3648 return false; 3649 } 3650 } 3651 3652 /** 3653 * {@inheritDoc} 3654 */ 3655 public View focusSearch(View focused, int direction) { 3656 checkThread(); 3657 if (!(mView instanceof ViewGroup)) { 3658 return null; 3659 } 3660 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3661 } 3662 3663 public void debug() { 3664 mView.debug(); 3665 } 3666 3667 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3668 if (mView != null) { 3669 getGfxInfo(mView, info); 3670 } else { 3671 info[0] = info[1] = 0; 3672 } 3673 } 3674 3675 private void getGfxInfo(View view, int[] info) { 3676 DisplayList displayList = view.mDisplayList; 3677 info[0]++; 3678 if (displayList != null) { 3679 info[1] += displayList.getSize(); 3680 } 3681 3682 if (view instanceof ViewGroup) { 3683 ViewGroup group = (ViewGroup) view; 3684 3685 int count = group.getChildCount(); 3686 for (int i = 0; i < count; i++) { 3687 getGfxInfo(group.getChildAt(i), info); 3688 } 3689 } 3690 } 3691 3692 public void die(boolean immediate) { 3693 if (immediate) { 3694 doDie(); 3695 } else { 3696 sendEmptyMessage(DIE); 3697 } 3698 } 3699 3700 void doDie() { 3701 checkThread(); 3702 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3703 synchronized (this) { 3704 if (mAdded) { 3705 mAdded = false; 3706 dispatchDetachedFromWindow(); 3707 } 3708 3709 if (mAdded && !mFirst) { 3710 destroyHardwareRenderer(); 3711 3712 int viewVisibility = mView.getVisibility(); 3713 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3714 if (mWindowAttributesChanged || viewVisibilityChanged) { 3715 // If layout params have been changed, first give them 3716 // to the window manager to make sure it has the correct 3717 // animation info. 3718 try { 3719 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3720 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3721 sWindowSession.finishDrawing(mWindow); 3722 } 3723 } catch (RemoteException e) { 3724 } 3725 } 3726 3727 mSurface.release(); 3728 } 3729 } 3730 } 3731 3732 public void requestUpdateConfiguration(Configuration config) { 3733 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3734 sendMessage(msg); 3735 } 3736 3737 private void destroyHardwareRenderer() { 3738 if (mAttachInfo.mHardwareRenderer != null) { 3739 mAttachInfo.mHardwareRenderer.destroy(true); 3740 mAttachInfo.mHardwareRenderer = null; 3741 mAttachInfo.mHardwareAccelerated = false; 3742 } 3743 } 3744 3745 public void dispatchFinishedEvent(int seq, boolean handled) { 3746 Message msg = obtainMessage(FINISHED_EVENT); 3747 msg.arg1 = seq; 3748 msg.arg2 = handled ? 1 : 0; 3749 sendMessage(msg); 3750 } 3751 3752 public void dispatchResized(int w, int h, Rect coveredInsets, 3753 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3754 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3755 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3756 + " visibleInsets=" + visibleInsets.toShortString() 3757 + " reportDraw=" + reportDraw); 3758 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3759 if (mTranslator != null) { 3760 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3761 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3762 w *= mTranslator.applicationInvertedScale; 3763 h *= mTranslator.applicationInvertedScale; 3764 } 3765 msg.arg1 = w; 3766 msg.arg2 = h; 3767 ResizedInfo ri = new ResizedInfo(); 3768 ri.coveredInsets = new Rect(coveredInsets); 3769 ri.visibleInsets = new Rect(visibleInsets); 3770 ri.newConfig = newConfig; 3771 msg.obj = ri; 3772 sendMessage(msg); 3773 } 3774 3775 private long mInputEventReceiveTimeNanos; 3776 private long mInputEventDeliverTimeNanos; 3777 private long mInputEventDeliverPostImeTimeNanos; 3778 private InputQueue.FinishedCallback mFinishedCallback; 3779 3780 private final InputHandler mInputHandler = new InputHandler() { 3781 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3782 startInputEvent(finishedCallback); 3783 dispatchKey(event, true); 3784 } 3785 3786 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3787 startInputEvent(finishedCallback); 3788 dispatchMotion(event, true); 3789 } 3790 }; 3791 3792 /** 3793 * Utility class used to queue up input events which are then handled during 3794 * performTraversals(). Doing it this way allows us to ensure that we are up to date with 3795 * all input events just prior to drawing, instead of placing those events on the regular 3796 * handler queue, potentially behind a drawing event. 3797 */ 3798 static class InputEventMessage { 3799 Message mMessage; 3800 InputEventMessage mNext; 3801 3802 private static final Object sPoolSync = new Object(); 3803 private static InputEventMessage sPool; 3804 private static int sPoolSize = 0; 3805 3806 private static final int MAX_POOL_SIZE = 10; 3807 3808 private InputEventMessage(Message m) { 3809 mMessage = m; 3810 mNext = null; 3811 } 3812 3813 /** 3814 * Return a new Message instance from the global pool. Allows us to 3815 * avoid allocating new objects in many cases. 3816 */ 3817 public static InputEventMessage obtain(Message msg) { 3818 synchronized (sPoolSync) { 3819 if (sPool != null) { 3820 InputEventMessage m = sPool; 3821 sPool = m.mNext; 3822 m.mNext = null; 3823 sPoolSize--; 3824 m.mMessage = msg; 3825 return m; 3826 } 3827 } 3828 return new InputEventMessage(msg); 3829 } 3830 3831 /** 3832 * Return the message to the pool. 3833 */ 3834 public void recycle() { 3835 mMessage.recycle(); 3836 synchronized (sPoolSync) { 3837 if (sPoolSize < MAX_POOL_SIZE) { 3838 mNext = sPool; 3839 sPool = this; 3840 sPoolSize++; 3841 } 3842 } 3843 3844 } 3845 } 3846 3847 /** 3848 * Place the input event message at the end of the current pending list 3849 */ 3850 private void enqueueInputEvent(Message msg, long when) { 3851 InputEventMessage inputMessage = InputEventMessage.obtain(msg); 3852 if (mPendingInputEvents == null) { 3853 mPendingInputEvents = inputMessage; 3854 } else { 3855 InputEventMessage currMessage = mPendingInputEvents; 3856 while (currMessage.mNext != null) { 3857 currMessage = currMessage.mNext; 3858 } 3859 currMessage.mNext = inputMessage; 3860 } 3861 sendEmptyMessageAtTime(PROCESS_INPUT_EVENTS, when); 3862 } 3863 3864 public void dispatchKey(KeyEvent event) { 3865 dispatchKey(event, false); 3866 } 3867 3868 private void dispatchKey(KeyEvent event, boolean sendDone) { 3869 //noinspection ConstantConditions 3870 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3871 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3872 if (DBG) Log.d("keydisp", "==================================================="); 3873 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3874 3875 debug(); 3876 3877 if (DBG) Log.d("keydisp", "==================================================="); 3878 } 3879 } 3880 3881 Message msg = obtainMessage(DISPATCH_KEY); 3882 msg.obj = event; 3883 msg.arg1 = sendDone ? 1 : 0; 3884 3885 if (LOCAL_LOGV) Log.v( 3886 TAG, "sending key " + event + " to " + mView); 3887 3888 enqueueInputEvent(msg, event.getEventTime()); 3889 } 3890 3891 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3892 int source = event.getSource(); 3893 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3894 dispatchPointer(event, sendDone); 3895 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3896 dispatchTrackball(event, sendDone); 3897 } else { 3898 dispatchGenericMotion(event, sendDone); 3899 } 3900 } 3901 3902 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3903 Message msg = obtainMessage(DISPATCH_POINTER); 3904 msg.obj = event; 3905 msg.arg1 = sendDone ? 1 : 0; 3906 enqueueInputEvent(msg, event.getEventTime()); 3907 } 3908 3909 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3910 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3911 msg.obj = event; 3912 msg.arg1 = sendDone ? 1 : 0; 3913 enqueueInputEvent(msg, event.getEventTime()); 3914 } 3915 3916 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3917 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3918 msg.obj = event; 3919 msg.arg1 = sendDone ? 1 : 0; 3920 enqueueInputEvent(msg, event.getEventTime()); 3921 } 3922 3923 public void dispatchAppVisibility(boolean visible) { 3924 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3925 msg.arg1 = visible ? 1 : 0; 3926 sendMessage(msg); 3927 } 3928 3929 public void dispatchGetNewSurface() { 3930 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3931 sendMessage(msg); 3932 } 3933 3934 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3935 Message msg = Message.obtain(); 3936 msg.what = WINDOW_FOCUS_CHANGED; 3937 msg.arg1 = hasFocus ? 1 : 0; 3938 msg.arg2 = inTouchMode ? 1 : 0; 3939 sendMessage(msg); 3940 } 3941 3942 public void dispatchCloseSystemDialogs(String reason) { 3943 Message msg = Message.obtain(); 3944 msg.what = CLOSE_SYSTEM_DIALOGS; 3945 msg.obj = reason; 3946 sendMessage(msg); 3947 } 3948 3949 public void dispatchDragEvent(DragEvent event) { 3950 final int what; 3951 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3952 what = DISPATCH_DRAG_LOCATION_EVENT; 3953 removeMessages(what); 3954 } else { 3955 what = DISPATCH_DRAG_EVENT; 3956 } 3957 Message msg = obtainMessage(what, event); 3958 sendMessage(msg); 3959 } 3960 3961 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3962 int localValue, int localChanges) { 3963 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3964 args.seq = seq; 3965 args.globalVisibility = globalVisibility; 3966 args.localValue = localValue; 3967 args.localChanges = localChanges; 3968 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3969 } 3970 3971 /** 3972 * The window is getting focus so if there is anything focused/selected 3973 * send an {@link AccessibilityEvent} to announce that. 3974 */ 3975 private void sendAccessibilityEvents() { 3976 if (!mAccessibilityManager.isEnabled()) { 3977 return; 3978 } 3979 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3980 View focusedView = mView.findFocus(); 3981 if (focusedView != null && focusedView != mView) { 3982 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3983 } 3984 } 3985 3986 /** 3987 * Post a callback to send a 3988 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3989 * This event is send at most once every 3990 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3991 */ 3992 private void postSendWindowContentChangedCallback() { 3993 if (mSendWindowContentChangedAccessibilityEvent == null) { 3994 mSendWindowContentChangedAccessibilityEvent = 3995 new SendWindowContentChangedAccessibilityEvent(); 3996 } 3997 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3998 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3999 postDelayed(mSendWindowContentChangedAccessibilityEvent, 4000 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4001 } 4002 } 4003 4004 /** 4005 * Remove a posted callback to send a 4006 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4007 */ 4008 private void removeSendWindowContentChangedCallback() { 4009 if (mSendWindowContentChangedAccessibilityEvent != null) { 4010 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4011 } 4012 } 4013 4014 public boolean showContextMenuForChild(View originalView) { 4015 return false; 4016 } 4017 4018 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4019 return null; 4020 } 4021 4022 public void createContextMenu(ContextMenu menu) { 4023 } 4024 4025 public void childDrawableStateChanged(View child) { 4026 } 4027 4028 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4029 if (mView == null) { 4030 return false; 4031 } 4032 mAccessibilityManager.sendAccessibilityEvent(event); 4033 return true; 4034 } 4035 4036 void checkThread() { 4037 if (mThread != Thread.currentThread()) { 4038 throw new CalledFromWrongThreadException( 4039 "Only the original thread that created a view hierarchy can touch its views."); 4040 } 4041 } 4042 4043 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4044 // ViewAncestor never intercepts touch event, so this can be a no-op 4045 } 4046 4047 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4048 boolean immediate) { 4049 return scrollToRectOrFocus(rectangle, immediate); 4050 } 4051 4052 class TakenSurfaceHolder extends BaseSurfaceHolder { 4053 @Override 4054 public boolean onAllowLockCanvas() { 4055 return mDrawingAllowed; 4056 } 4057 4058 @Override 4059 public void onRelayoutContainer() { 4060 // Not currently interesting -- from changing between fixed and layout size. 4061 } 4062 4063 public void setFormat(int format) { 4064 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4065 } 4066 4067 public void setType(int type) { 4068 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4069 } 4070 4071 @Override 4072 public void onUpdateSurface() { 4073 // We take care of format and type changes on our own. 4074 throw new IllegalStateException("Shouldn't be here"); 4075 } 4076 4077 public boolean isCreating() { 4078 return mIsCreating; 4079 } 4080 4081 @Override 4082 public void setFixedSize(int width, int height) { 4083 throw new UnsupportedOperationException( 4084 "Currently only support sizing from layout"); 4085 } 4086 4087 public void setKeepScreenOn(boolean screenOn) { 4088 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4089 } 4090 } 4091 4092 static class InputMethodCallback extends IInputMethodCallback.Stub { 4093 private WeakReference<ViewRootImpl> mViewAncestor; 4094 4095 public InputMethodCallback(ViewRootImpl viewAncestor) { 4096 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4097 } 4098 4099 public void finishedEvent(int seq, boolean handled) { 4100 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4101 if (viewAncestor != null) { 4102 viewAncestor.dispatchFinishedEvent(seq, handled); 4103 } 4104 } 4105 4106 public void sessionCreated(IInputMethodSession session) { 4107 // Stub -- not for use in the client. 4108 } 4109 } 4110 4111 static class W extends IWindow.Stub { 4112 private final WeakReference<ViewRootImpl> mViewAncestor; 4113 4114 W(ViewRootImpl viewAncestor) { 4115 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4116 } 4117 4118 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4119 boolean reportDraw, Configuration newConfig) { 4120 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4121 if (viewAncestor != null) { 4122 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4123 newConfig); 4124 } 4125 } 4126 4127 public void dispatchAppVisibility(boolean visible) { 4128 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4129 if (viewAncestor != null) { 4130 viewAncestor.dispatchAppVisibility(visible); 4131 } 4132 } 4133 4134 public void dispatchGetNewSurface() { 4135 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4136 if (viewAncestor != null) { 4137 viewAncestor.dispatchGetNewSurface(); 4138 } 4139 } 4140 4141 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4142 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4143 if (viewAncestor != null) { 4144 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4145 } 4146 } 4147 4148 private static int checkCallingPermission(String permission) { 4149 try { 4150 return ActivityManagerNative.getDefault().checkPermission( 4151 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4152 } catch (RemoteException e) { 4153 return PackageManager.PERMISSION_DENIED; 4154 } 4155 } 4156 4157 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4158 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4159 if (viewAncestor != null) { 4160 final View view = viewAncestor.mView; 4161 if (view != null) { 4162 if (checkCallingPermission(Manifest.permission.DUMP) != 4163 PackageManager.PERMISSION_GRANTED) { 4164 throw new SecurityException("Insufficient permissions to invoke" 4165 + " executeCommand() from pid=" + Binder.getCallingPid() 4166 + ", uid=" + Binder.getCallingUid()); 4167 } 4168 4169 OutputStream clientStream = null; 4170 try { 4171 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4172 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4173 } catch (IOException e) { 4174 e.printStackTrace(); 4175 } finally { 4176 if (clientStream != null) { 4177 try { 4178 clientStream.close(); 4179 } catch (IOException e) { 4180 e.printStackTrace(); 4181 } 4182 } 4183 } 4184 } 4185 } 4186 } 4187 4188 public void closeSystemDialogs(String reason) { 4189 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4190 if (viewAncestor != null) { 4191 viewAncestor.dispatchCloseSystemDialogs(reason); 4192 } 4193 } 4194 4195 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4196 boolean sync) { 4197 if (sync) { 4198 try { 4199 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4200 } catch (RemoteException e) { 4201 } 4202 } 4203 } 4204 4205 public void dispatchWallpaperCommand(String action, int x, int y, 4206 int z, Bundle extras, boolean sync) { 4207 if (sync) { 4208 try { 4209 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4210 } catch (RemoteException e) { 4211 } 4212 } 4213 } 4214 4215 /* Drag/drop */ 4216 public void dispatchDragEvent(DragEvent event) { 4217 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4218 if (viewAncestor != null) { 4219 viewAncestor.dispatchDragEvent(event); 4220 } 4221 } 4222 4223 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4224 int localValue, int localChanges) { 4225 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4226 if (viewAncestor != null) { 4227 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4228 localValue, localChanges); 4229 } 4230 } 4231 } 4232 4233 /** 4234 * Maintains state information for a single trackball axis, generating 4235 * discrete (DPAD) movements based on raw trackball motion. 4236 */ 4237 static final class TrackballAxis { 4238 /** 4239 * The maximum amount of acceleration we will apply. 4240 */ 4241 static final float MAX_ACCELERATION = 20; 4242 4243 /** 4244 * The maximum amount of time (in milliseconds) between events in order 4245 * for us to consider the user to be doing fast trackball movements, 4246 * and thus apply an acceleration. 4247 */ 4248 static final long FAST_MOVE_TIME = 150; 4249 4250 /** 4251 * Scaling factor to the time (in milliseconds) between events to how 4252 * much to multiple/divide the current acceleration. When movement 4253 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4254 * FAST_MOVE_TIME it divides it. 4255 */ 4256 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4257 4258 float position; 4259 float absPosition; 4260 float acceleration = 1; 4261 long lastMoveTime = 0; 4262 int step; 4263 int dir; 4264 int nonAccelMovement; 4265 4266 void reset(int _step) { 4267 position = 0; 4268 acceleration = 1; 4269 lastMoveTime = 0; 4270 step = _step; 4271 dir = 0; 4272 } 4273 4274 /** 4275 * Add trackball movement into the state. If the direction of movement 4276 * has been reversed, the state is reset before adding the 4277 * movement (so that you don't have to compensate for any previously 4278 * collected movement before see the result of the movement in the 4279 * new direction). 4280 * 4281 * @return Returns the absolute value of the amount of movement 4282 * collected so far. 4283 */ 4284 float collect(float off, long time, String axis) { 4285 long normTime; 4286 if (off > 0) { 4287 normTime = (long)(off * FAST_MOVE_TIME); 4288 if (dir < 0) { 4289 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4290 position = 0; 4291 step = 0; 4292 acceleration = 1; 4293 lastMoveTime = 0; 4294 } 4295 dir = 1; 4296 } else if (off < 0) { 4297 normTime = (long)((-off) * FAST_MOVE_TIME); 4298 if (dir > 0) { 4299 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4300 position = 0; 4301 step = 0; 4302 acceleration = 1; 4303 lastMoveTime = 0; 4304 } 4305 dir = -1; 4306 } else { 4307 normTime = 0; 4308 } 4309 4310 // The number of milliseconds between each movement that is 4311 // considered "normal" and will not result in any acceleration 4312 // or deceleration, scaled by the offset we have here. 4313 if (normTime > 0) { 4314 long delta = time - lastMoveTime; 4315 lastMoveTime = time; 4316 float acc = acceleration; 4317 if (delta < normTime) { 4318 // The user is scrolling rapidly, so increase acceleration. 4319 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4320 if (scale > 1) acc *= scale; 4321 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4322 + off + " normTime=" + normTime + " delta=" + delta 4323 + " scale=" + scale + " acc=" + acc); 4324 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4325 } else { 4326 // The user is scrolling slowly, so decrease acceleration. 4327 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4328 if (scale > 1) acc /= scale; 4329 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4330 + off + " normTime=" + normTime + " delta=" + delta 4331 + " scale=" + scale + " acc=" + acc); 4332 acceleration = acc > 1 ? acc : 1; 4333 } 4334 } 4335 position += off; 4336 return (absPosition = Math.abs(position)); 4337 } 4338 4339 /** 4340 * Generate the number of discrete movement events appropriate for 4341 * the currently collected trackball movement. 4342 * 4343 * @param precision The minimum movement required to generate the 4344 * first discrete movement. 4345 * 4346 * @return Returns the number of discrete movements, either positive 4347 * or negative, or 0 if there is not enough trackball movement yet 4348 * for a discrete movement. 4349 */ 4350 int generate(float precision) { 4351 int movement = 0; 4352 nonAccelMovement = 0; 4353 do { 4354 final int dir = position >= 0 ? 1 : -1; 4355 switch (step) { 4356 // If we are going to execute the first step, then we want 4357 // to do this as soon as possible instead of waiting for 4358 // a full movement, in order to make things look responsive. 4359 case 0: 4360 if (absPosition < precision) { 4361 return movement; 4362 } 4363 movement += dir; 4364 nonAccelMovement += dir; 4365 step = 1; 4366 break; 4367 // If we have generated the first movement, then we need 4368 // to wait for the second complete trackball motion before 4369 // generating the second discrete movement. 4370 case 1: 4371 if (absPosition < 2) { 4372 return movement; 4373 } 4374 movement += dir; 4375 nonAccelMovement += dir; 4376 position += dir > 0 ? -2 : 2; 4377 absPosition = Math.abs(position); 4378 step = 2; 4379 break; 4380 // After the first two, we generate discrete movements 4381 // consistently with the trackball, applying an acceleration 4382 // if the trackball is moving quickly. This is a simple 4383 // acceleration on top of what we already compute based 4384 // on how quickly the wheel is being turned, to apply 4385 // a longer increasing acceleration to continuous movement 4386 // in one direction. 4387 default: 4388 if (absPosition < 1) { 4389 return movement; 4390 } 4391 movement += dir; 4392 position += dir >= 0 ? -1 : 1; 4393 absPosition = Math.abs(position); 4394 float acc = acceleration; 4395 acc *= 1.1f; 4396 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4397 break; 4398 } 4399 } while (true); 4400 } 4401 } 4402 4403 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4404 public CalledFromWrongThreadException(String msg) { 4405 super(msg); 4406 } 4407 } 4408 4409 private SurfaceHolder mHolder = new SurfaceHolder() { 4410 // we only need a SurfaceHolder for opengl. it would be nice 4411 // to implement everything else though, especially the callback 4412 // support (opengl doesn't make use of it right now, but eventually 4413 // will). 4414 public Surface getSurface() { 4415 return mSurface; 4416 } 4417 4418 public boolean isCreating() { 4419 return false; 4420 } 4421 4422 public void addCallback(Callback callback) { 4423 } 4424 4425 public void removeCallback(Callback callback) { 4426 } 4427 4428 public void setFixedSize(int width, int height) { 4429 } 4430 4431 public void setSizeFromLayout() { 4432 } 4433 4434 public void setFormat(int format) { 4435 } 4436 4437 public void setType(int type) { 4438 } 4439 4440 public void setKeepScreenOn(boolean screenOn) { 4441 } 4442 4443 public Canvas lockCanvas() { 4444 return null; 4445 } 4446 4447 public Canvas lockCanvas(Rect dirty) { 4448 return null; 4449 } 4450 4451 public void unlockCanvasAndPost(Canvas canvas) { 4452 } 4453 public Rect getSurfaceFrame() { 4454 return null; 4455 } 4456 }; 4457 4458 static RunQueue getRunQueue() { 4459 RunQueue rq = sRunQueues.get(); 4460 if (rq != null) { 4461 return rq; 4462 } 4463 rq = new RunQueue(); 4464 sRunQueues.set(rq); 4465 return rq; 4466 } 4467 4468 /** 4469 * @hide 4470 */ 4471 static final class RunQueue { 4472 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4473 4474 void post(Runnable action) { 4475 postDelayed(action, 0); 4476 } 4477 4478 void postDelayed(Runnable action, long delayMillis) { 4479 HandlerAction handlerAction = new HandlerAction(); 4480 handlerAction.action = action; 4481 handlerAction.delay = delayMillis; 4482 4483 synchronized (mActions) { 4484 mActions.add(handlerAction); 4485 } 4486 } 4487 4488 void removeCallbacks(Runnable action) { 4489 final HandlerAction handlerAction = new HandlerAction(); 4490 handlerAction.action = action; 4491 4492 synchronized (mActions) { 4493 final ArrayList<HandlerAction> actions = mActions; 4494 4495 while (actions.remove(handlerAction)) { 4496 // Keep going 4497 } 4498 } 4499 } 4500 4501 void executeActions(Handler handler) { 4502 synchronized (mActions) { 4503 final ArrayList<HandlerAction> actions = mActions; 4504 final int count = actions.size(); 4505 4506 for (int i = 0; i < count; i++) { 4507 final HandlerAction handlerAction = actions.get(i); 4508 handler.postDelayed(handlerAction.action, handlerAction.delay); 4509 } 4510 4511 actions.clear(); 4512 } 4513 } 4514 4515 private static class HandlerAction { 4516 Runnable action; 4517 long delay; 4518 4519 @Override 4520 public boolean equals(Object o) { 4521 if (this == o) return true; 4522 if (o == null || getClass() != o.getClass()) return false; 4523 4524 HandlerAction that = (HandlerAction) o; 4525 return !(action != null ? !action.equals(that.action) : that.action != null); 4526 4527 } 4528 4529 @Override 4530 public int hashCode() { 4531 int result = action != null ? action.hashCode() : 0; 4532 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4533 return result; 4534 } 4535 } 4536 } 4537 4538 /** 4539 * Class for managing the accessibility interaction connection 4540 * based on the global accessibility state. 4541 */ 4542 final class AccessibilityInteractionConnectionManager 4543 implements AccessibilityStateChangeListener { 4544 public void onAccessibilityStateChanged(boolean enabled) { 4545 if (enabled) { 4546 ensureConnection(); 4547 } else { 4548 ensureNoConnection(); 4549 } 4550 } 4551 4552 public void ensureConnection() { 4553 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4554 if (!registered) { 4555 mAttachInfo.mAccessibilityWindowId = 4556 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4557 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4558 } 4559 } 4560 4561 public void ensureNoConnection() { 4562 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4563 if (registered) { 4564 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4565 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4566 } 4567 } 4568 } 4569 4570 /** 4571 * This class is an interface this ViewAncestor provides to the 4572 * AccessibilityManagerService to the latter can interact with 4573 * the view hierarchy in this ViewAncestor. 4574 */ 4575 static final class AccessibilityInteractionConnection 4576 extends IAccessibilityInteractionConnection.Stub { 4577 private final WeakReference<ViewRootImpl> mViewRootImpl; 4578 4579 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4580 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4581 } 4582 4583 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4584 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4585 int interrogatingPid, long interrogatingTid) { 4586 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4587 if (viewRootImpl != null && viewRootImpl.mView != null) { 4588 viewRootImpl.getAccessibilityInteractionController() 4589 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4590 interactionId, callback, interrogatingPid, interrogatingTid); 4591 } 4592 } 4593 4594 public void performAccessibilityAction(long accessibilityNodeId, int action, 4595 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4596 int interogatingPid, long interrogatingTid) { 4597 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4598 if (viewRootImpl != null && viewRootImpl.mView != null) { 4599 viewRootImpl.getAccessibilityInteractionController() 4600 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4601 interactionId, callback, interogatingPid, interrogatingTid); 4602 } 4603 } 4604 4605 public void findAccessibilityNodeInfoByViewId(int viewId, 4606 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4607 int interrogatingPid, long interrogatingTid) { 4608 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4609 if (viewRootImpl != null && viewRootImpl.mView != null) { 4610 viewRootImpl.getAccessibilityInteractionController() 4611 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4612 interrogatingPid, interrogatingTid); 4613 } 4614 } 4615 4616 public void findAccessibilityNodeInfosByText(String text, long accessibilityNodeId, 4617 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4618 int interrogatingPid, long interrogatingTid) { 4619 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4620 if (viewRootImpl != null && viewRootImpl.mView != null) { 4621 viewRootImpl.getAccessibilityInteractionController() 4622 .findAccessibilityNodeInfosByTextClientThread(text, accessibilityNodeId, 4623 interactionId, callback, interrogatingPid, interrogatingTid); 4624 } 4625 } 4626 } 4627 4628 /** 4629 * Class for managing accessibility interactions initiated from the system 4630 * and targeting the view hierarchy. A *ClientThread method is to be 4631 * called from the interaction connection this ViewAncestor gives the 4632 * system to talk to it and a corresponding *UiThread method that is executed 4633 * on the UI thread. 4634 */ 4635 final class AccessibilityInteractionController { 4636 private static final int POOL_SIZE = 5; 4637 4638 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4639 new ArrayList<AccessibilityNodeInfo>(); 4640 4641 // Reusable poolable arguments for interacting with the view hierarchy 4642 // to fit more arguments than Message and to avoid sharing objects between 4643 // two messages since several threads can send messages concurrently. 4644 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4645 new PoolableManager<SomeArgs>() { 4646 public SomeArgs newInstance() { 4647 return new SomeArgs(); 4648 } 4649 4650 public void onAcquired(SomeArgs info) { 4651 /* do nothing */ 4652 } 4653 4654 public void onReleased(SomeArgs info) { 4655 info.clear(); 4656 } 4657 }, POOL_SIZE) 4658 ); 4659 4660 public class SomeArgs implements Poolable<SomeArgs> { 4661 private SomeArgs mNext; 4662 private boolean mIsPooled; 4663 4664 public Object arg1; 4665 public Object arg2; 4666 public int argi1; 4667 public int argi2; 4668 public int argi3; 4669 4670 public SomeArgs getNextPoolable() { 4671 return mNext; 4672 } 4673 4674 public boolean isPooled() { 4675 return mIsPooled; 4676 } 4677 4678 public void setNextPoolable(SomeArgs args) { 4679 mNext = args; 4680 } 4681 4682 public void setPooled(boolean isPooled) { 4683 mIsPooled = isPooled; 4684 } 4685 4686 private void clear() { 4687 arg1 = null; 4688 arg2 = null; 4689 argi1 = 0; 4690 argi2 = 0; 4691 argi3 = 0; 4692 } 4693 } 4694 4695 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4696 long accessibilityNodeId, int interactionId, 4697 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4698 long interrogatingTid) { 4699 Message message = Message.obtain(); 4700 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4701 SomeArgs args = mPool.acquire(); 4702 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4703 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4704 args.argi3 = interactionId; 4705 args.arg1 = callback; 4706 message.obj = args; 4707 // If the interrogation is performed by the same thread as the main UI 4708 // thread in this process, set the message as a static reference so 4709 // after this call completes the same thread but in the interrogating 4710 // client can handle the message to generate the result. 4711 if (interrogatingPid == Process.myPid() 4712 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4713 message.setTarget(ViewRootImpl.this); 4714 AccessibilityInteractionClient.getInstanceForThread( 4715 interrogatingTid).setSameThreadMessage(message); 4716 } else { 4717 sendMessage(message); 4718 } 4719 } 4720 4721 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4722 SomeArgs args = (SomeArgs) message.obj; 4723 final int accessibilityViewId = args.argi1; 4724 final int virtualDescendantId = args.argi2; 4725 final int interactionId = args.argi3; 4726 final IAccessibilityInteractionConnectionCallback callback = 4727 (IAccessibilityInteractionConnectionCallback) args.arg1; 4728 mPool.release(args); 4729 AccessibilityNodeInfo info = null; 4730 try { 4731 View target = findViewByAccessibilityId(accessibilityViewId); 4732 if (target != null && target.getVisibility() == View.VISIBLE) { 4733 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4734 if (provider != null) { 4735 info = provider.createAccessibilityNodeInfo(virtualDescendantId); 4736 } else if (virtualDescendantId == View.NO_ID) { 4737 info = target.createAccessibilityNodeInfo(); 4738 } 4739 } 4740 } finally { 4741 try { 4742 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4743 } catch (RemoteException re) { 4744 /* ignore - the other side will time out */ 4745 } 4746 } 4747 } 4748 4749 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4750 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4751 long interrogatingTid) { 4752 Message message = Message.obtain(); 4753 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4754 message.arg1 = viewId; 4755 message.arg2 = interactionId; 4756 message.obj = callback; 4757 // If the interrogation is performed by the same thread as the main UI 4758 // thread in this process, set the message as a static reference so 4759 // after this call completes the same thread but in the interrogating 4760 // client can handle the message to generate the result. 4761 if (interrogatingPid == Process.myPid() 4762 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4763 message.setTarget(ViewRootImpl.this); 4764 AccessibilityInteractionClient.getInstanceForThread( 4765 interrogatingTid).setSameThreadMessage(message); 4766 } else { 4767 sendMessage(message); 4768 } 4769 } 4770 4771 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4772 final int viewId = message.arg1; 4773 final int interactionId = message.arg2; 4774 final IAccessibilityInteractionConnectionCallback callback = 4775 (IAccessibilityInteractionConnectionCallback) message.obj; 4776 4777 AccessibilityNodeInfo info = null; 4778 try { 4779 View root = ViewRootImpl.this.mView; 4780 View target = root.findViewById(viewId); 4781 if (target != null && target.getVisibility() == View.VISIBLE) { 4782 info = target.createAccessibilityNodeInfo(); 4783 } 4784 } finally { 4785 try { 4786 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4787 } catch (RemoteException re) { 4788 /* ignore - the other side will time out */ 4789 } 4790 } 4791 } 4792 4793 public void findAccessibilityNodeInfosByTextClientThread(String text, 4794 long accessibilityNodeId, int interactionId, 4795 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4796 long interrogatingTid) { 4797 Message message = Message.obtain(); 4798 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4799 SomeArgs args = mPool.acquire(); 4800 args.arg1 = text; 4801 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4802 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4803 args.argi3 = interactionId; 4804 args.arg2 = callback; 4805 message.obj = args; 4806 // If the interrogation is performed by the same thread as the main UI 4807 // thread in this process, set the message as a static reference so 4808 // after this call completes the same thread but in the interrogating 4809 // client can handle the message to generate the result. 4810 if (interrogatingPid == Process.myPid() 4811 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4812 message.setTarget(ViewRootImpl.this); 4813 AccessibilityInteractionClient.getInstanceForThread( 4814 interrogatingTid).setSameThreadMessage(message); 4815 } else { 4816 sendMessage(message); 4817 } 4818 } 4819 4820 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4821 SomeArgs args = (SomeArgs) message.obj; 4822 final String text = (String) args.arg1; 4823 final int accessibilityViewId = args.argi1; 4824 final int virtualDescendantId = args.argi2; 4825 final int interactionId = args.argi3; 4826 final IAccessibilityInteractionConnectionCallback callback = 4827 (IAccessibilityInteractionConnectionCallback) args.arg2; 4828 mPool.release(args); 4829 List<AccessibilityNodeInfo> infos = null; 4830 try { 4831 View target = null; 4832 if (accessibilityViewId != View.NO_ID) { 4833 target = findViewByAccessibilityId(accessibilityViewId); 4834 } else { 4835 target = ViewRootImpl.this.mView; 4836 } 4837 if (target != null && target.getVisibility() == View.VISIBLE) { 4838 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4839 if (provider != null) { 4840 infos = provider.findAccessibilityNodeInfosByText(text, 4841 virtualDescendantId); 4842 } else if (virtualDescendantId == View.NO_ID) { 4843 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4844 foundViews.clear(); 4845 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4846 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4847 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4848 if (!foundViews.isEmpty()) { 4849 infos = mTempAccessibilityNodeInfoList; 4850 infos.clear(); 4851 final int viewCount = foundViews.size(); 4852 for (int i = 0; i < viewCount; i++) { 4853 View foundView = foundViews.get(i); 4854 if (foundView.getVisibility() == View.VISIBLE) { 4855 provider = foundView.getAccessibilityNodeProvider(); 4856 if (provider != null) { 4857 List<AccessibilityNodeInfo> infosFromProvider = 4858 provider.findAccessibilityNodeInfosByText(text, 4859 virtualDescendantId); 4860 if (infosFromProvider != null) { 4861 infos.addAll(infosFromProvider); 4862 } 4863 } else { 4864 infos.add(foundView.createAccessibilityNodeInfo()); 4865 } 4866 } 4867 } 4868 } 4869 } 4870 } 4871 } finally { 4872 try { 4873 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4874 } catch (RemoteException re) { 4875 /* ignore - the other side will time out */ 4876 } 4877 } 4878 } 4879 4880 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4881 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4882 int interogatingPid, long interrogatingTid) { 4883 Message message = Message.obtain(); 4884 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4885 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4886 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4887 SomeArgs args = mPool.acquire(); 4888 args.argi1 = action; 4889 args.argi2 = interactionId; 4890 args.arg1 = callback; 4891 message.obj = args; 4892 // If the interrogation is performed by the same thread as the main UI 4893 // thread in this process, set the message as a static reference so 4894 // after this call completes the same thread but in the interrogating 4895 // client can handle the message to generate the result. 4896 if (interogatingPid == Process.myPid() 4897 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4898 message.setTarget(ViewRootImpl.this); 4899 AccessibilityInteractionClient.getInstanceForThread( 4900 interrogatingTid).setSameThreadMessage(message); 4901 } else { 4902 sendMessage(message); 4903 } 4904 } 4905 4906 public void perfromAccessibilityActionUiThread(Message message) { 4907 final int accessibilityViewId = message.arg1; 4908 final int virtualDescendantId = message.arg2; 4909 SomeArgs args = (SomeArgs) message.obj; 4910 final int action = args.argi1; 4911 final int interactionId = args.argi2; 4912 final IAccessibilityInteractionConnectionCallback callback = 4913 (IAccessibilityInteractionConnectionCallback) args.arg1; 4914 mPool.release(args); 4915 boolean succeeded = false; 4916 try { 4917 View target = findViewByAccessibilityId(accessibilityViewId); 4918 if (target != null && target.getVisibility() == View.VISIBLE) { 4919 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4920 if (provider != null) { 4921 succeeded = provider.performAccessibilityAction(action, 4922 virtualDescendantId); 4923 } else if (virtualDescendantId == View.NO_ID) { 4924 switch (action) { 4925 case AccessibilityNodeInfo.ACTION_FOCUS: { 4926 if (!target.hasFocus()) { 4927 // Get out of touch mode since accessibility 4928 // wants to move focus around. 4929 ensureTouchMode(false); 4930 succeeded = target.requestFocus(); 4931 } 4932 } break; 4933 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4934 if (target.hasFocus()) { 4935 target.clearFocus(); 4936 succeeded = !target.isFocused(); 4937 } 4938 } break; 4939 case AccessibilityNodeInfo.ACTION_SELECT: { 4940 if (!target.isSelected()) { 4941 target.setSelected(true); 4942 succeeded = target.isSelected(); 4943 } 4944 } break; 4945 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4946 if (target.isSelected()) { 4947 target.setSelected(false); 4948 succeeded = !target.isSelected(); 4949 } 4950 } break; 4951 } 4952 } 4953 } 4954 } finally { 4955 try { 4956 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4957 } catch (RemoteException re) { 4958 /* ignore - the other side will time out */ 4959 } 4960 } 4961 } 4962 4963 private View findViewByAccessibilityId(int accessibilityId) { 4964 View root = ViewRootImpl.this.mView; 4965 if (root == null) { 4966 return null; 4967 } 4968 View foundView = root.findViewByAccessibilityId(accessibilityId); 4969 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4970 return null; 4971 } 4972 return foundView; 4973 } 4974 } 4975 4976 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4977 public volatile boolean mIsPending; 4978 4979 public void run() { 4980 if (mView != null) { 4981 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4982 mIsPending = false; 4983 } 4984 } 4985 } 4986} 4987