ViewRootImpl.java revision 6dd005b48138708762bfade0081d031a2a4a3822
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.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Paint; 31import android.graphics.PixelFormat; 32import android.graphics.Point; 33import android.graphics.PointF; 34import android.graphics.PorterDuff; 35import android.graphics.Rect; 36import android.graphics.Region; 37import android.media.AudioManager; 38import android.os.Binder; 39import android.os.Bundle; 40import android.os.Debug; 41import android.os.Handler; 42import android.os.LatencyTimer; 43import android.os.Looper; 44import android.os.Message; 45import android.os.ParcelFileDescriptor; 46import android.os.Process; 47import android.os.RemoteException; 48import android.os.SystemClock; 49import android.os.SystemProperties; 50import android.util.AndroidRuntimeException; 51import android.util.DisplayMetrics; 52import android.util.EventLog; 53import android.util.Log; 54import android.util.Pool; 55import android.util.Poolable; 56import android.util.PoolableManager; 57import android.util.Pools; 58import android.util.Slog; 59import android.util.SparseArray; 60import android.util.TypedValue; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.IAccessibilityInteractionConnection; 67import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 68import android.view.animation.AccelerateDecelerateInterpolator; 69import android.view.animation.Interpolator; 70import android.view.inputmethod.InputConnection; 71import android.view.inputmethod.InputMethodManager; 72import android.widget.Scroller; 73 74import com.android.internal.policy.PolicyManager; 75import com.android.internal.util.Predicate; 76import com.android.internal.view.BaseSurfaceHolder; 77import com.android.internal.view.IInputMethodCallback; 78import com.android.internal.view.IInputMethodSession; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.List; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerImpl}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl extends Handler implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewAncestor"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean WATCH_POINTER = false; 110 111 /** 112 * Set this system property to true to force the view hierarchy to render 113 * at 60 Hz. This can be used to measure the potential framerate. 114 */ 115 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 116 117 private static final boolean MEASURE_LATENCY = false; 118 private static LatencyTimer lt; 119 120 /** 121 * Maximum time we allow the user to roll the trackball enough to generate 122 * a key event, before resetting the counters. 123 */ 124 static final int MAX_TRACKBALL_DELAY = 250; 125 126 static IWindowSession sWindowSession; 127 128 static final Object mStaticInit = new Object(); 129 static boolean mInitialized = false; 130 131 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 132 133 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 134 static boolean sFirstDrawComplete = false; 135 136 static final ArrayList<ComponentCallbacks> sConfigCallbacks 137 = new ArrayList<ComponentCallbacks>(); 138 139 long mLastTrackballTime = 0; 140 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 141 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 142 143 int mLastJoystickXDirection; 144 int mLastJoystickYDirection; 145 int mLastJoystickXKeyCode; 146 int mLastJoystickYKeyCode; 147 148 final int[] mTmpLocation = new int[2]; 149 150 final TypedValue mTmpValue = new TypedValue(); 151 152 final InputMethodCallback mInputMethodCallback; 153 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 154 int mPendingEventSeq = 0; 155 156 final Thread mThread; 157 158 final WindowLeaked mLocation; 159 160 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 161 162 final W mWindow; 163 164 View mView; 165 View mFocusedView; 166 View mRealFocusedView; // this is not set to null in touch mode 167 int mViewVisibility; 168 boolean mAppVisible = true; 169 170 // Set to true if the owner of this window is in the stopped state, 171 // so the window should no longer be active. 172 boolean mStopped = false; 173 174 boolean mLastInCompatMode = false; 175 176 SurfaceHolder.Callback2 mSurfaceHolderCallback; 177 BaseSurfaceHolder mSurfaceHolder; 178 boolean mIsCreating; 179 boolean mDrawingAllowed; 180 181 final Region mTransparentRegion; 182 final Region mPreviousTransparentRegion; 183 184 int mWidth; 185 int mHeight; 186 Rect mDirty; 187 final Rect mCurrentDirty = new Rect(); 188 final Rect mPreviousDirty = new Rect(); 189 boolean mIsAnimating; 190 191 CompatibilityInfo.Translator mTranslator; 192 193 final View.AttachInfo mAttachInfo; 194 InputChannel mInputChannel; 195 InputQueue.Callback mInputQueueCallback; 196 InputQueue mInputQueue; 197 FallbackEventHandler mFallbackEventHandler; 198 199 final Rect mTempRect; // used in the transaction to not thrash the heap. 200 final Rect mVisRect; // used to retrieve visible rect of focused view. 201 202 boolean mTraversalScheduled; 203 long mLastTraversalFinishedTimeNanos; 204 long mLastDrawDurationNanos; 205 boolean mWillDrawSoon; 206 boolean mLayoutRequested; 207 boolean mFirst; 208 boolean mReportNextDraw; 209 boolean mFullRedrawNeeded; 210 boolean mNewSurfaceNeeded; 211 boolean mHasHadWindowFocus; 212 boolean mLastWasImTarget; 213 214 boolean mWindowAttributesChanged = false; 215 216 // These can be accessed by any thread, must be protected with a lock. 217 // Surface can never be reassigned or cleared (use Surface.clear()). 218 private final Surface mSurface = new Surface(); 219 220 boolean mAdded; 221 boolean mAddedTouchMode; 222 223 CompatibilityInfoHolder mCompatibilityInfo; 224 225 /*package*/ int mAddNesting; 226 227 // These are accessed by multiple threads. 228 final Rect mWinFrame; // frame given by window manager. 229 230 final Rect mPendingVisibleInsets = new Rect(); 231 final Rect mPendingContentInsets = new Rect(); 232 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 233 = new ViewTreeObserver.InternalInsetsInfo(); 234 235 final Configuration mLastConfiguration = new Configuration(); 236 final Configuration mPendingConfiguration = new Configuration(); 237 238 class ResizedInfo { 239 Rect coveredInsets; 240 Rect visibleInsets; 241 Configuration newConfig; 242 } 243 244 boolean mScrollMayChange; 245 int mSoftInputMode; 246 View mLastScrolledFocus; 247 int mScrollY; 248 int mCurScrollY; 249 Scroller mScroller; 250 HardwareLayer mResizeBuffer; 251 long mResizeBufferStartTime; 252 int mResizeBufferDuration; 253 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 254 private ArrayList<LayoutTransition> mPendingTransitions; 255 256 final ViewConfiguration mViewConfiguration; 257 258 /* Drag/drop */ 259 ClipDescription mDragDescription; 260 View mCurrentDragView; 261 volatile Object mLocalDragState; 262 final PointF mDragPoint = new PointF(); 263 final PointF mLastTouchPoint = new PointF(); 264 265 private boolean mProfileRendering; 266 private Thread mRenderProfiler; 267 private volatile boolean mRenderProfilingEnabled; 268 269 /** 270 * see {@link #playSoundEffect(int)} 271 */ 272 AudioManager mAudioManager; 273 274 final AccessibilityManager mAccessibilityManager; 275 276 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 277 278 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 279 280 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 281 282 private final int mDensity; 283 284 /** 285 * Consistency verifier for debugging purposes. 286 */ 287 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 288 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 289 new InputEventConsistencyVerifier(this, 0) : null; 290 291 public static IWindowSession getWindowSession(Looper mainLooper) { 292 synchronized (mStaticInit) { 293 if (!mInitialized) { 294 try { 295 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 296 sWindowSession = Display.getWindowManager().openSession( 297 imm.getClient(), imm.getInputContext()); 298 mInitialized = true; 299 } catch (RemoteException e) { 300 } 301 } 302 return sWindowSession; 303 } 304 } 305 306 public ViewRootImpl(Context context) { 307 super(); 308 309 if (MEASURE_LATENCY) { 310 if (lt == null) { 311 lt = new LatencyTimer(100, 1000); 312 } 313 } 314 315 // Initialize the statics when this class is first instantiated. This is 316 // done here instead of in the static block because Zygote does not 317 // allow the spawning of threads. 318 getWindowSession(context.getMainLooper()); 319 320 mThread = Thread.currentThread(); 321 mLocation = new WindowLeaked(null); 322 mLocation.fillInStackTrace(); 323 mWidth = -1; 324 mHeight = -1; 325 mDirty = new Rect(); 326 mTempRect = new Rect(); 327 mVisRect = new Rect(); 328 mWinFrame = new Rect(); 329 mWindow = new W(this); 330 mInputMethodCallback = new InputMethodCallback(this); 331 mViewVisibility = View.GONE; 332 mTransparentRegion = new Region(); 333 mPreviousTransparentRegion = new Region(); 334 mFirst = true; // true for the first time the view is added 335 mAdded = false; 336 mAccessibilityManager = AccessibilityManager.getInstance(context); 337 mAccessibilityInteractionConnectionManager = 338 new AccessibilityInteractionConnectionManager(); 339 mAccessibilityManager.addAccessibilityStateChangeListener( 340 mAccessibilityInteractionConnectionManager); 341 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 342 mViewConfiguration = ViewConfiguration.get(context); 343 mDensity = context.getResources().getDisplayMetrics().densityDpi; 344 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 345 mProfileRendering = Boolean.parseBoolean( 346 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 347 } 348 349 public static void addFirstDrawHandler(Runnable callback) { 350 synchronized (sFirstDrawHandlers) { 351 if (!sFirstDrawComplete) { 352 sFirstDrawHandlers.add(callback); 353 } 354 } 355 } 356 357 public static void addConfigCallback(ComponentCallbacks callback) { 358 synchronized (sConfigCallbacks) { 359 sConfigCallbacks.add(callback); 360 } 361 } 362 363 // FIXME for perf testing only 364 private boolean mProfile = false; 365 366 /** 367 * Call this to profile the next traversal call. 368 * FIXME for perf testing only. Remove eventually 369 */ 370 public void profile() { 371 mProfile = true; 372 } 373 374 /** 375 * Indicates whether we are in touch mode. Calling this method triggers an IPC 376 * call and should be avoided whenever possible. 377 * 378 * @return True, if the device is in touch mode, false otherwise. 379 * 380 * @hide 381 */ 382 static boolean isInTouchMode() { 383 if (mInitialized) { 384 try { 385 return sWindowSession.getInTouchMode(); 386 } catch (RemoteException e) { 387 } 388 } 389 return false; 390 } 391 392 /** 393 * We have one child 394 */ 395 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 396 synchronized (this) { 397 if (mView == null) { 398 mView = view; 399 mFallbackEventHandler.setView(view); 400 mWindowAttributes.copyFrom(attrs); 401 attrs = mWindowAttributes; 402 403 if (view instanceof RootViewSurfaceTaker) { 404 mSurfaceHolderCallback = 405 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 406 if (mSurfaceHolderCallback != null) { 407 mSurfaceHolder = new TakenSurfaceHolder(); 408 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 409 } 410 } 411 412 // If the application owns the surface, don't enable hardware acceleration 413 if (mSurfaceHolder == null) { 414 enableHardwareAcceleration(attrs); 415 } 416 417 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 418 mTranslator = compatibilityInfo.getTranslator(); 419 420 if (mTranslator != null) { 421 mSurface.setCompatibilityTranslator(mTranslator); 422 } 423 424 boolean restore = false; 425 if (mTranslator != null) { 426 restore = true; 427 attrs.backup(); 428 mTranslator.translateWindowLayout(attrs); 429 } 430 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 431 432 if (!compatibilityInfo.supportsScreen()) { 433 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 434 mLastInCompatMode = true; 435 } 436 437 mSoftInputMode = attrs.softInputMode; 438 mWindowAttributesChanged = true; 439 mAttachInfo.mRootView = view; 440 mAttachInfo.mScalingRequired = mTranslator != null; 441 mAttachInfo.mApplicationScale = 442 mTranslator == null ? 1.0f : mTranslator.applicationScale; 443 if (panelParentView != null) { 444 mAttachInfo.mPanelParentWindowToken 445 = panelParentView.getApplicationWindowToken(); 446 } 447 mAdded = true; 448 int res; /* = WindowManagerImpl.ADD_OKAY; */ 449 450 // Schedule the first layout -before- adding to the window 451 // manager, to make sure we do the relayout before receiving 452 // any other events from the system. 453 requestLayout(); 454 mInputChannel = new InputChannel(); 455 try { 456 res = sWindowSession.add(mWindow, mWindowAttributes, 457 getHostVisibility(), mAttachInfo.mContentInsets, 458 mInputChannel); 459 } catch (RemoteException e) { 460 mAdded = false; 461 mView = null; 462 mAttachInfo.mRootView = null; 463 mInputChannel = null; 464 mFallbackEventHandler.setView(null); 465 unscheduleTraversals(); 466 throw new RuntimeException("Adding window failed", e); 467 } finally { 468 if (restore) { 469 attrs.restore(); 470 } 471 } 472 473 if (mTranslator != null) { 474 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 475 } 476 mPendingContentInsets.set(mAttachInfo.mContentInsets); 477 mPendingVisibleInsets.set(0, 0, 0, 0); 478 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 479 if (res < WindowManagerImpl.ADD_OKAY) { 480 mView = null; 481 mAttachInfo.mRootView = null; 482 mAdded = false; 483 mFallbackEventHandler.setView(null); 484 unscheduleTraversals(); 485 switch (res) { 486 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 487 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 488 throw new WindowManagerImpl.BadTokenException( 489 "Unable to add window -- token " + attrs.token 490 + " is not valid; is your activity running?"); 491 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 492 throw new WindowManagerImpl.BadTokenException( 493 "Unable to add window -- token " + attrs.token 494 + " is not for an application"); 495 case WindowManagerImpl.ADD_APP_EXITING: 496 throw new WindowManagerImpl.BadTokenException( 497 "Unable to add window -- app for token " + attrs.token 498 + " is exiting"); 499 case WindowManagerImpl.ADD_DUPLICATE_ADD: 500 throw new WindowManagerImpl.BadTokenException( 501 "Unable to add window -- window " + mWindow 502 + " has already been added"); 503 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 504 // Silently ignore -- we would have just removed it 505 // right away, anyway. 506 return; 507 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 508 throw new WindowManagerImpl.BadTokenException( 509 "Unable to add window " + mWindow + 510 " -- another window of this type already exists"); 511 case WindowManagerImpl.ADD_PERMISSION_DENIED: 512 throw new WindowManagerImpl.BadTokenException( 513 "Unable to add window " + mWindow + 514 " -- permission denied for this window type"); 515 } 516 throw new RuntimeException( 517 "Unable to add window -- unknown error code " + res); 518 } 519 520 if (view instanceof RootViewSurfaceTaker) { 521 mInputQueueCallback = 522 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 523 } 524 if (mInputQueueCallback != null) { 525 mInputQueue = new InputQueue(mInputChannel); 526 mInputQueueCallback.onInputQueueCreated(mInputQueue); 527 } else { 528 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 529 Looper.myQueue()); 530 } 531 532 view.assignParent(this); 533 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 534 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 535 536 if (mAccessibilityManager.isEnabled()) { 537 mAccessibilityInteractionConnectionManager.ensureConnection(); 538 } 539 } 540 } 541 } 542 543 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 544 mAttachInfo.mHardwareAccelerated = false; 545 mAttachInfo.mHardwareAccelerationRequested = false; 546 547 // Try to enable hardware acceleration if requested 548 final boolean hardwareAccelerated = 549 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 550 551 if (hardwareAccelerated) { 552 if (!HardwareRenderer.isAvailable()) { 553 mAttachInfo.mHardwareAccelerationRequested = true; 554 return; 555 } 556 557 // Only enable hardware acceleration if we are not in the system process 558 // The window manager creates ViewAncestors to display animated preview windows 559 // of launching apps and we don't want those to be hardware accelerated 560 561 final boolean systemHwAccelerated = 562 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED_SYSTEM) != 0; 563 564 if (!HardwareRenderer.sRendererDisabled || systemHwAccelerated) { 565 // Don't enable hardware acceleration when we're not on the main thread 566 if (!systemHwAccelerated && Looper.getMainLooper() != Looper.myLooper()) { 567 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 568 + "acceleration outside of the main thread, aborting"); 569 return; 570 } 571 572 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 573 if (mAttachInfo.mHardwareRenderer != null) { 574 mAttachInfo.mHardwareRenderer.destroy(true); 575 } 576 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 577 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 578 = mAttachInfo.mHardwareRenderer != null; 579 } 580 } 581 } 582 583 public View getView() { 584 return mView; 585 } 586 587 final WindowLeaked getLocation() { 588 return mLocation; 589 } 590 591 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 592 synchronized (this) { 593 int oldSoftInputMode = mWindowAttributes.softInputMode; 594 // preserve compatible window flag if exists. 595 int compatibleWindowFlag = 596 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 597 mWindowAttributes.copyFrom(attrs); 598 mWindowAttributes.flags |= compatibleWindowFlag; 599 600 if (newView) { 601 mSoftInputMode = attrs.softInputMode; 602 requestLayout(); 603 } 604 // Don't lose the mode we last auto-computed. 605 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 606 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 607 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 608 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 609 | (oldSoftInputMode 610 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 611 } 612 mWindowAttributesChanged = true; 613 scheduleTraversals(); 614 } 615 } 616 617 void handleAppVisibility(boolean visible) { 618 if (mAppVisible != visible) { 619 mAppVisible = visible; 620 scheduleTraversals(); 621 } 622 } 623 624 void handleGetNewSurface() { 625 mNewSurfaceNeeded = true; 626 mFullRedrawNeeded = true; 627 scheduleTraversals(); 628 } 629 630 /** 631 * {@inheritDoc} 632 */ 633 public void requestLayout() { 634 checkThread(); 635 mLayoutRequested = true; 636 scheduleTraversals(); 637 } 638 639 /** 640 * {@inheritDoc} 641 */ 642 public boolean isLayoutRequested() { 643 return mLayoutRequested; 644 } 645 646 public void invalidateChild(View child, Rect dirty) { 647 checkThread(); 648 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 649 if (dirty == null) { 650 // Fast invalidation for GL-enabled applications; GL must redraw everything 651 invalidate(); 652 return; 653 } 654 if (mCurScrollY != 0 || mTranslator != null) { 655 mTempRect.set(dirty); 656 dirty = mTempRect; 657 if (mCurScrollY != 0) { 658 dirty.offset(0, -mCurScrollY); 659 } 660 if (mTranslator != null) { 661 mTranslator.translateRectInAppWindowToScreen(dirty); 662 } 663 if (mAttachInfo.mScalingRequired) { 664 dirty.inset(-1, -1); 665 } 666 } 667 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 668 mAttachInfo.mSetIgnoreDirtyState = true; 669 mAttachInfo.mIgnoreDirtyState = true; 670 } 671 mDirty.union(dirty); 672 if (!mWillDrawSoon) { 673 scheduleTraversals(); 674 } 675 } 676 677 void invalidate() { 678 mDirty.set(0, 0, mWidth, mHeight); 679 scheduleTraversals(); 680 } 681 682 void setStopped(boolean stopped) { 683 if (mStopped != stopped) { 684 mStopped = stopped; 685 if (!stopped) { 686 scheduleTraversals(); 687 } 688 } 689 } 690 691 public ViewParent getParent() { 692 return null; 693 } 694 695 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 696 invalidateChild(null, dirty); 697 return null; 698 } 699 700 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 701 if (child != mView) { 702 throw new RuntimeException("child is not mine, honest!"); 703 } 704 // Note: don't apply scroll offset, because we want to know its 705 // visibility in the virtual canvas being given to the view hierarchy. 706 return r.intersect(0, 0, mWidth, mHeight); 707 } 708 709 public void bringChildToFront(View child) { 710 } 711 712 public void scheduleTraversals() { 713 if (!mTraversalScheduled) { 714 mTraversalScheduled = true; 715 716 //noinspection ConstantConditions 717 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 718 final long now = System.nanoTime(); 719 Log.d(TAG, "Latency: Scheduled traversal, it has been " 720 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 721 + "ms since the last traversal finished."); 722 } 723 724 sendEmptyMessage(DO_TRAVERSAL); 725 } 726 } 727 728 public void unscheduleTraversals() { 729 if (mTraversalScheduled) { 730 mTraversalScheduled = false; 731 removeMessages(DO_TRAVERSAL); 732 } 733 } 734 735 int getHostVisibility() { 736 return mAppVisible ? mView.getVisibility() : View.GONE; 737 } 738 739 void disposeResizeBuffer() { 740 if (mResizeBuffer != null) { 741 mResizeBuffer.destroy(); 742 mResizeBuffer = null; 743 } 744 } 745 746 /** 747 * Add LayoutTransition to the list of transitions to be started in the next traversal. 748 * This list will be cleared after the transitions on the list are start()'ed. These 749 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 750 * happens during the layout phase of traversal, which we want to complete before any of the 751 * animations are started (because those animations may side-effect properties that layout 752 * depends upon, like the bounding rectangles of the affected views). So we add the transition 753 * to the list and it is started just prior to starting the drawing phase of traversal. 754 * 755 * @param transition The LayoutTransition to be started on the next traversal. 756 * 757 * @hide 758 */ 759 public void requestTransitionStart(LayoutTransition transition) { 760 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 761 if (mPendingTransitions == null) { 762 mPendingTransitions = new ArrayList<LayoutTransition>(); 763 } 764 mPendingTransitions.add(transition); 765 } 766 } 767 768 private void performTraversals() { 769 // cache mView since it is used so much below... 770 final View host = mView; 771 772 if (DBG) { 773 System.out.println("======================================"); 774 System.out.println("performTraversals"); 775 host.debug(); 776 } 777 778 if (host == null || !mAdded) 779 return; 780 781 mTraversalScheduled = false; 782 mWillDrawSoon = true; 783 boolean windowSizeMayChange = false; 784 boolean fullRedrawNeeded = mFullRedrawNeeded; 785 boolean newSurface = false; 786 boolean surfaceChanged = false; 787 WindowManager.LayoutParams lp = mWindowAttributes; 788 789 int desiredWindowWidth; 790 int desiredWindowHeight; 791 int childWidthMeasureSpec; 792 int childHeightMeasureSpec; 793 794 final View.AttachInfo attachInfo = mAttachInfo; 795 796 final int viewVisibility = getHostVisibility(); 797 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 798 || mNewSurfaceNeeded; 799 800 WindowManager.LayoutParams params = null; 801 if (mWindowAttributesChanged) { 802 mWindowAttributesChanged = false; 803 surfaceChanged = true; 804 params = lp; 805 } 806 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 807 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 808 params = lp; 809 fullRedrawNeeded = true; 810 mLayoutRequested = true; 811 if (mLastInCompatMode) { 812 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 813 mLastInCompatMode = false; 814 } else { 815 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 816 mLastInCompatMode = true; 817 } 818 } 819 Rect frame = mWinFrame; 820 if (mFirst) { 821 fullRedrawNeeded = true; 822 mLayoutRequested = true; 823 824 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 825 // NOTE -- system code, won't try to do compat mode. 826 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 827 desiredWindowWidth = disp.getRealWidth(); 828 desiredWindowHeight = disp.getRealHeight(); 829 } else { 830 DisplayMetrics packageMetrics = 831 mView.getContext().getResources().getDisplayMetrics(); 832 desiredWindowWidth = packageMetrics.widthPixels; 833 desiredWindowHeight = packageMetrics.heightPixels; 834 } 835 836 // For the very first time, tell the view hierarchy that it 837 // is attached to the window. Note that at this point the surface 838 // object is not initialized to its backing store, but soon it 839 // will be (assuming the window is visible). 840 attachInfo.mSurface = mSurface; 841 // We used to use the following condition to choose 32 bits drawing caches: 842 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 843 // However, windows are now always 32 bits by default, so choose 32 bits 844 attachInfo.mUse32BitDrawingCache = true; 845 attachInfo.mHasWindowFocus = false; 846 attachInfo.mWindowVisibility = viewVisibility; 847 attachInfo.mRecomputeGlobalAttributes = false; 848 attachInfo.mKeepScreenOn = false; 849 attachInfo.mSystemUiVisibility = 0; 850 viewVisibilityChanged = false; 851 mLastConfiguration.setTo(host.getResources().getConfiguration()); 852 host.dispatchAttachedToWindow(attachInfo, 0); 853 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 854 855 } else { 856 desiredWindowWidth = frame.width(); 857 desiredWindowHeight = frame.height(); 858 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 859 if (DEBUG_ORIENTATION) Log.v(TAG, 860 "View " + host + " resized to: " + frame); 861 fullRedrawNeeded = true; 862 mLayoutRequested = true; 863 windowSizeMayChange = true; 864 } 865 } 866 867 if (viewVisibilityChanged) { 868 attachInfo.mWindowVisibility = viewVisibility; 869 host.dispatchWindowVisibilityChanged(viewVisibility); 870 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 871 if (mAttachInfo.mHardwareRenderer != null) { 872 mAttachInfo.mHardwareRenderer.destroy(false); 873 } 874 } 875 if (viewVisibility == View.GONE) { 876 // After making a window gone, we will count it as being 877 // shown for the first time the next time it gets focus. 878 mHasHadWindowFocus = false; 879 } 880 } 881 882 boolean insetsChanged = false; 883 884 if (mLayoutRequested && !mStopped) { 885 // Execute enqueued actions on every layout in case a view that was detached 886 // enqueued an action after being detached 887 getRunQueue().executeActions(attachInfo.mHandler); 888 889 final Resources res = mView.getContext().getResources(); 890 891 if (mFirst) { 892 host.fitSystemWindows(mAttachInfo.mContentInsets); 893 // make sure touch mode code executes by setting cached value 894 // to opposite of the added touch mode. 895 mAttachInfo.mInTouchMode = !mAddedTouchMode; 896 ensureTouchModeLocally(mAddedTouchMode); 897 } else { 898 if (!mAttachInfo.mContentInsets.equals(mPendingContentInsets)) { 899 if (mWidth > 0 && mHeight > 0 && 900 mSurface != null && mSurface.isValid() && 901 !mAttachInfo.mTurnOffWindowResizeAnim && 902 mAttachInfo.mHardwareRenderer != null && 903 mAttachInfo.mHardwareRenderer.isEnabled() && 904 mAttachInfo.mHardwareRenderer.validate() && 905 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 906 907 disposeResizeBuffer(); 908 909 boolean completed = false; 910 HardwareCanvas canvas = null; 911 try { 912 if (mResizeBuffer == null) { 913 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 914 mWidth, mHeight, false); 915 } else if (mResizeBuffer.getWidth() != mWidth || 916 mResizeBuffer.getHeight() != mHeight) { 917 mResizeBuffer.resize(mWidth, mHeight); 918 } 919 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 920 canvas.setViewport(mWidth, mHeight); 921 canvas.onPreDraw(null); 922 final int restoreCount = canvas.save(); 923 924 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 925 926 int yoff; 927 final boolean scrolling = mScroller != null 928 && mScroller.computeScrollOffset(); 929 if (scrolling) { 930 yoff = mScroller.getCurrY(); 931 mScroller.abortAnimation(); 932 } else { 933 yoff = mScrollY; 934 } 935 936 canvas.translate(0, -yoff); 937 if (mTranslator != null) { 938 mTranslator.translateCanvas(canvas); 939 } 940 941 mView.draw(canvas); 942 943 mResizeBufferStartTime = SystemClock.uptimeMillis(); 944 mResizeBufferDuration = mView.getResources().getInteger( 945 com.android.internal.R.integer.config_mediumAnimTime); 946 completed = true; 947 948 canvas.restoreToCount(restoreCount); 949 } catch (OutOfMemoryError e) { 950 Log.w(TAG, "Not enough memory for content change anim buffer", e); 951 } finally { 952 if (canvas != null) { 953 canvas.onPostDraw(); 954 } 955 if (mResizeBuffer != null) { 956 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 957 if (!completed) { 958 mResizeBuffer.destroy(); 959 mResizeBuffer = null; 960 } 961 } 962 } 963 } 964 mAttachInfo.mContentInsets.set(mPendingContentInsets); 965 host.fitSystemWindows(mAttachInfo.mContentInsets); 966 insetsChanged = true; 967 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 968 + mAttachInfo.mContentInsets); 969 } 970 if (!mAttachInfo.mVisibleInsets.equals(mPendingVisibleInsets)) { 971 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 972 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 973 + mAttachInfo.mVisibleInsets); 974 } 975 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 976 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 977 windowSizeMayChange = true; 978 979 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 980 // NOTE -- system code, won't try to do compat mode. 981 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 982 desiredWindowWidth = disp.getRealWidth(); 983 desiredWindowHeight = disp.getRealHeight(); 984 } else { 985 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 986 desiredWindowWidth = packageMetrics.widthPixels; 987 desiredWindowHeight = packageMetrics.heightPixels; 988 } 989 } 990 } 991 992 // Ask host how big it wants to be 993 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 994 "Measuring " + host + " in display " + desiredWindowWidth 995 + "x" + desiredWindowHeight + "..."); 996 997 boolean goodMeasure = false; 998 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 999 // On large screens, we don't want to allow dialogs to just 1000 // stretch to fill the entire width of the screen to display 1001 // one line of text. First try doing the layout at a smaller 1002 // size to see if it will fit. 1003 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1004 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1005 int baseSize = 0; 1006 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1007 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1008 } 1009 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1010 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1011 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1012 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1013 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1014 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1015 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1016 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1017 goodMeasure = true; 1018 } else { 1019 // Didn't fit in that size... try expanding a bit. 1020 baseSize = (baseSize+desiredWindowWidth)/2; 1021 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1022 + baseSize); 1023 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1024 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1025 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1026 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1027 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1028 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1029 goodMeasure = true; 1030 } 1031 } 1032 } 1033 } 1034 1035 if (!goodMeasure) { 1036 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1037 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1038 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1039 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1040 windowSizeMayChange = true; 1041 } 1042 } 1043 1044 if (DBG) { 1045 System.out.println("======================================"); 1046 System.out.println("performTraversals -- after measure"); 1047 host.debug(); 1048 } 1049 } 1050 1051 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1052 //Log.i(TAG, "Computing view hierarchy attributes!"); 1053 attachInfo.mRecomputeGlobalAttributes = false; 1054 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1055 int oldVis = attachInfo.mSystemUiVisibility; 1056 attachInfo.mKeepScreenOn = false; 1057 attachInfo.mSystemUiVisibility = 0; 1058 attachInfo.mHasSystemUiListeners = false; 1059 host.dispatchCollectViewAttributes(0); 1060 if (attachInfo.mKeepScreenOn != oldScreenOn 1061 || attachInfo.mSystemUiVisibility != oldVis 1062 || attachInfo.mHasSystemUiListeners) { 1063 params = lp; 1064 } 1065 } 1066 1067 if (mFirst || attachInfo.mViewVisibilityChanged) { 1068 attachInfo.mViewVisibilityChanged = false; 1069 int resizeMode = mSoftInputMode & 1070 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1071 // If we are in auto resize mode, then we need to determine 1072 // what mode to use now. 1073 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1074 final int N = attachInfo.mScrollContainers.size(); 1075 for (int i=0; i<N; i++) { 1076 if (attachInfo.mScrollContainers.get(i).isShown()) { 1077 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1078 } 1079 } 1080 if (resizeMode == 0) { 1081 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1082 } 1083 if ((lp.softInputMode & 1084 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1085 lp.softInputMode = (lp.softInputMode & 1086 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1087 resizeMode; 1088 params = lp; 1089 } 1090 } 1091 } 1092 1093 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1094 if (!PixelFormat.formatHasAlpha(params.format)) { 1095 params.format = PixelFormat.TRANSLUCENT; 1096 } 1097 } 1098 1099 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1100 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1101 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1102 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1103 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1104 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1105 1106 final boolean computesInternalInsets = 1107 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1108 1109 boolean insetsPending = false; 1110 int relayoutResult = 0; 1111 1112 if (mFirst || windowShouldResize || insetsChanged || 1113 viewVisibilityChanged || params != null) { 1114 1115 if (viewVisibility == View.VISIBLE) { 1116 // If this window is giving internal insets to the window 1117 // manager, and it is being added or changing its visibility, 1118 // then we want to first give the window manager "fake" 1119 // insets to cause it to effectively ignore the content of 1120 // the window during layout. This avoids it briefly causing 1121 // other windows to resize/move based on the raw frame of the 1122 // window, waiting until we can finish laying out this window 1123 // and get back to the window manager with the ultimately 1124 // computed insets. 1125 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1126 } 1127 1128 if (mSurfaceHolder != null) { 1129 mSurfaceHolder.mSurfaceLock.lock(); 1130 mDrawingAllowed = true; 1131 } 1132 1133 boolean hwInitialized = false; 1134 boolean contentInsetsChanged = false; 1135 boolean visibleInsetsChanged; 1136 boolean hadSurface = mSurface.isValid(); 1137 1138 try { 1139 int fl = 0; 1140 if (params != null) { 1141 fl = params.flags; 1142 if (attachInfo.mKeepScreenOn) { 1143 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1144 } 1145 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1146 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1147 || params.subtreeSystemUiVisibility != 0 1148 || params.systemUiVisibility != 0; 1149 } 1150 if (DEBUG_LAYOUT) { 1151 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1152 host.getMeasuredHeight() + ", params=" + params); 1153 } 1154 1155 final int surfaceGenerationId = mSurface.getGenerationId(); 1156 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1157 1158 if (params != null) { 1159 params.flags = fl; 1160 } 1161 1162 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1163 + " content=" + mPendingContentInsets.toShortString() 1164 + " visible=" + mPendingVisibleInsets.toShortString() 1165 + " surface=" + mSurface); 1166 1167 if (mPendingConfiguration.seq != 0) { 1168 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1169 + mPendingConfiguration); 1170 updateConfiguration(mPendingConfiguration, !mFirst); 1171 mPendingConfiguration.seq = 0; 1172 } 1173 1174 contentInsetsChanged = !mPendingContentInsets.equals( 1175 mAttachInfo.mContentInsets); 1176 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1177 mAttachInfo.mVisibleInsets); 1178 if (contentInsetsChanged) { 1179 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1180 host.fitSystemWindows(mAttachInfo.mContentInsets); 1181 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1182 + mAttachInfo.mContentInsets); 1183 } 1184 if (visibleInsetsChanged) { 1185 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1186 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1187 + mAttachInfo.mVisibleInsets); 1188 } 1189 1190 if (!hadSurface) { 1191 if (mSurface.isValid()) { 1192 // If we are creating a new surface, then we need to 1193 // completely redraw it. Also, when we get to the 1194 // point of drawing it we will hold off and schedule 1195 // a new traversal instead. This is so we can tell the 1196 // window manager about all of the windows being displayed 1197 // before actually drawing them, so it can display then 1198 // all at once. 1199 newSurface = true; 1200 fullRedrawNeeded = true; 1201 mPreviousTransparentRegion.setEmpty(); 1202 1203 if (mAttachInfo.mHardwareRenderer != null) { 1204 try { 1205 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1206 } catch (Surface.OutOfResourcesException e) { 1207 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1208 try { 1209 if (!sWindowSession.outOfMemory(mWindow)) { 1210 Slog.w(TAG, "No processes killed for memory; killing self"); 1211 Process.killProcess(Process.myPid()); 1212 } 1213 } catch (RemoteException ex) { 1214 } 1215 mLayoutRequested = true; // ask wm for a new surface next time. 1216 return; 1217 } 1218 } 1219 } 1220 } else if (!mSurface.isValid()) { 1221 // If the surface has been removed, then reset the scroll 1222 // positions. 1223 mLastScrolledFocus = null; 1224 mScrollY = mCurScrollY = 0; 1225 if (mScroller != null) { 1226 mScroller.abortAnimation(); 1227 } 1228 disposeResizeBuffer(); 1229 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1230 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1231 fullRedrawNeeded = true; 1232 try { 1233 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1234 } catch (Surface.OutOfResourcesException e) { 1235 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1236 try { 1237 if (!sWindowSession.outOfMemory(mWindow)) { 1238 Slog.w(TAG, "No processes killed for memory; killing self"); 1239 Process.killProcess(Process.myPid()); 1240 } 1241 } catch (RemoteException ex) { 1242 } 1243 mLayoutRequested = true; // ask wm for a new surface next time. 1244 return; 1245 } 1246 } 1247 } catch (RemoteException e) { 1248 } 1249 1250 if (DEBUG_ORIENTATION) Log.v( 1251 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1252 1253 attachInfo.mWindowLeft = frame.left; 1254 attachInfo.mWindowTop = frame.top; 1255 1256 // !!FIXME!! This next section handles the case where we did not get the 1257 // window size we asked for. We should avoid this by getting a maximum size from 1258 // the window session beforehand. 1259 mWidth = frame.width(); 1260 mHeight = frame.height(); 1261 1262 if (mSurfaceHolder != null) { 1263 // The app owns the surface; tell it about what is going on. 1264 if (mSurface.isValid()) { 1265 // XXX .copyFrom() doesn't work! 1266 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1267 mSurfaceHolder.mSurface = mSurface; 1268 } 1269 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1270 mSurfaceHolder.mSurfaceLock.unlock(); 1271 if (mSurface.isValid()) { 1272 if (!hadSurface) { 1273 mSurfaceHolder.ungetCallbacks(); 1274 1275 mIsCreating = true; 1276 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1277 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1278 if (callbacks != null) { 1279 for (SurfaceHolder.Callback c : callbacks) { 1280 c.surfaceCreated(mSurfaceHolder); 1281 } 1282 } 1283 surfaceChanged = true; 1284 } 1285 if (surfaceChanged) { 1286 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1287 lp.format, mWidth, mHeight); 1288 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1289 if (callbacks != null) { 1290 for (SurfaceHolder.Callback c : callbacks) { 1291 c.surfaceChanged(mSurfaceHolder, lp.format, 1292 mWidth, mHeight); 1293 } 1294 } 1295 } 1296 mIsCreating = false; 1297 } else if (hadSurface) { 1298 mSurfaceHolder.ungetCallbacks(); 1299 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1300 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1301 if (callbacks != null) { 1302 for (SurfaceHolder.Callback c : callbacks) { 1303 c.surfaceDestroyed(mSurfaceHolder); 1304 } 1305 } 1306 mSurfaceHolder.mSurfaceLock.lock(); 1307 try { 1308 mSurfaceHolder.mSurface = new Surface(); 1309 } finally { 1310 mSurfaceHolder.mSurfaceLock.unlock(); 1311 } 1312 } 1313 } 1314 1315 if (hwInitialized || ((windowShouldResize || params != null) && 1316 mAttachInfo.mHardwareRenderer != null && 1317 mAttachInfo.mHardwareRenderer.isEnabled())) { 1318 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1319 if (!hwInitialized) { 1320 mAttachInfo.mHardwareRenderer.invalidate(); 1321 } 1322 } 1323 1324 if (!mStopped) { 1325 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1326 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1327 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1328 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1329 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1330 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1331 1332 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1333 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1334 + " mHeight=" + mHeight 1335 + " measuredHeight=" + host.getMeasuredHeight() 1336 + " coveredInsetsChanged=" + contentInsetsChanged); 1337 1338 // Ask host how big it wants to be 1339 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1340 1341 // Implementation of weights from WindowManager.LayoutParams 1342 // We just grow the dimensions as needed and re-measure if 1343 // needs be 1344 int width = host.getMeasuredWidth(); 1345 int height = host.getMeasuredHeight(); 1346 boolean measureAgain = false; 1347 1348 if (lp.horizontalWeight > 0.0f) { 1349 width += (int) ((mWidth - width) * lp.horizontalWeight); 1350 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1351 MeasureSpec.EXACTLY); 1352 measureAgain = true; 1353 } 1354 if (lp.verticalWeight > 0.0f) { 1355 height += (int) ((mHeight - height) * lp.verticalWeight); 1356 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1357 MeasureSpec.EXACTLY); 1358 measureAgain = true; 1359 } 1360 1361 if (measureAgain) { 1362 if (DEBUG_LAYOUT) Log.v(TAG, 1363 "And hey let's measure once more: width=" + width 1364 + " height=" + height); 1365 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1366 } 1367 1368 mLayoutRequested = true; 1369 } 1370 } 1371 } 1372 1373 final boolean didLayout = mLayoutRequested && !mStopped; 1374 boolean triggerGlobalLayoutListener = didLayout 1375 || attachInfo.mRecomputeGlobalAttributes; 1376 if (didLayout) { 1377 mLayoutRequested = false; 1378 mScrollMayChange = true; 1379 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1380 TAG, "Laying out " + host + " to (" + 1381 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1382 long startTime = 0L; 1383 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1384 startTime = SystemClock.elapsedRealtime(); 1385 } 1386 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1387 1388 if (false && ViewDebug.consistencyCheckEnabled) { 1389 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1390 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1391 + "please refer to the logs with the tag " 1392 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1393 } 1394 } 1395 1396 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1397 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1398 } 1399 1400 // By this point all views have been sized and positionned 1401 // We can compute the transparent area 1402 1403 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1404 // start out transparent 1405 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1406 host.getLocationInWindow(mTmpLocation); 1407 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1408 mTmpLocation[0] + host.mRight - host.mLeft, 1409 mTmpLocation[1] + host.mBottom - host.mTop); 1410 1411 host.gatherTransparentRegion(mTransparentRegion); 1412 if (mTranslator != null) { 1413 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1414 } 1415 1416 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1417 mPreviousTransparentRegion.set(mTransparentRegion); 1418 // reconfigure window manager 1419 try { 1420 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1421 } catch (RemoteException e) { 1422 } 1423 } 1424 } 1425 1426 if (DBG) { 1427 System.out.println("======================================"); 1428 System.out.println("performTraversals -- after setFrame"); 1429 host.debug(); 1430 } 1431 } 1432 1433 if (triggerGlobalLayoutListener) { 1434 attachInfo.mRecomputeGlobalAttributes = false; 1435 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1436 1437 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1438 postSendWindowContentChangedCallback(); 1439 } 1440 } 1441 1442 if (computesInternalInsets) { 1443 // Clear the original insets. 1444 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1445 insets.reset(); 1446 1447 // Compute new insets in place. 1448 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1449 1450 // Tell the window manager. 1451 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1452 mLastGivenInsets.set(insets); 1453 1454 // Translate insets to screen coordinates if needed. 1455 final Rect contentInsets; 1456 final Rect visibleInsets; 1457 final Region touchableRegion; 1458 if (mTranslator != null) { 1459 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1460 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1461 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1462 } else { 1463 contentInsets = insets.contentInsets; 1464 visibleInsets = insets.visibleInsets; 1465 touchableRegion = insets.touchableRegion; 1466 } 1467 1468 try { 1469 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1470 contentInsets, visibleInsets, touchableRegion); 1471 } catch (RemoteException e) { 1472 } 1473 } 1474 } 1475 1476 if (mFirst) { 1477 // handle first focus request 1478 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1479 + mView.hasFocus()); 1480 if (mView != null) { 1481 if (!mView.hasFocus()) { 1482 mView.requestFocus(View.FOCUS_FORWARD); 1483 mFocusedView = mRealFocusedView = mView.findFocus(); 1484 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1485 + mFocusedView); 1486 } else { 1487 mRealFocusedView = mView.findFocus(); 1488 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1489 + mRealFocusedView); 1490 } 1491 } 1492 } 1493 1494 mFirst = false; 1495 mWillDrawSoon = false; 1496 mNewSurfaceNeeded = false; 1497 mViewVisibility = viewVisibility; 1498 1499 if (mAttachInfo.mHasWindowFocus) { 1500 final boolean imTarget = WindowManager.LayoutParams 1501 .mayUseInputMethod(mWindowAttributes.flags); 1502 if (imTarget != mLastWasImTarget) { 1503 mLastWasImTarget = imTarget; 1504 InputMethodManager imm = InputMethodManager.peekInstance(); 1505 if (imm != null && imTarget) { 1506 imm.startGettingWindowFocus(mView); 1507 imm.onWindowFocus(mView, mView.findFocus(), 1508 mWindowAttributes.softInputMode, 1509 !mHasHadWindowFocus, mWindowAttributes.flags); 1510 } 1511 } 1512 } 1513 1514 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw(); 1515 1516 if (!cancelDraw && !newSurface) { 1517 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1518 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1519 mPendingTransitions.get(i).startChangingAnimations(); 1520 } 1521 mPendingTransitions.clear(); 1522 } 1523 mFullRedrawNeeded = false; 1524 1525 final long drawStartTime; 1526 if (ViewDebug.DEBUG_LATENCY) { 1527 drawStartTime = System.nanoTime(); 1528 } 1529 1530 draw(fullRedrawNeeded); 1531 1532 if (ViewDebug.DEBUG_LATENCY) { 1533 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1534 } 1535 1536 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1537 || mReportNextDraw) { 1538 if (LOCAL_LOGV) { 1539 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1540 } 1541 mReportNextDraw = false; 1542 if (mSurfaceHolder != null && mSurface.isValid()) { 1543 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1544 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1545 if (callbacks != null) { 1546 for (SurfaceHolder.Callback c : callbacks) { 1547 if (c instanceof SurfaceHolder.Callback2) { 1548 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1549 mSurfaceHolder); 1550 } 1551 } 1552 } 1553 } 1554 try { 1555 sWindowSession.finishDrawing(mWindow); 1556 } catch (RemoteException e) { 1557 } 1558 } 1559 } else { 1560 // We were supposed to report when we are done drawing. Since we canceled the 1561 // draw, remember it here. 1562 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1563 mReportNextDraw = true; 1564 } 1565 if (fullRedrawNeeded) { 1566 mFullRedrawNeeded = true; 1567 } 1568 // Try again 1569 scheduleTraversals(); 1570 } 1571 } 1572 1573 public void requestTransparentRegion(View child) { 1574 // the test below should not fail unless someone is messing with us 1575 checkThread(); 1576 if (mView == child) { 1577 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1578 // Need to make sure we re-evaluate the window attributes next 1579 // time around, to ensure the window has the correct format. 1580 mWindowAttributesChanged = true; 1581 requestLayout(); 1582 } 1583 } 1584 1585 /** 1586 * Figures out the measure spec for the root view in a window based on it's 1587 * layout params. 1588 * 1589 * @param windowSize 1590 * The available width or height of the window 1591 * 1592 * @param rootDimension 1593 * The layout params for one dimension (width or height) of the 1594 * window. 1595 * 1596 * @return The measure spec to use to measure the root view. 1597 */ 1598 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1599 int measureSpec; 1600 switch (rootDimension) { 1601 1602 case ViewGroup.LayoutParams.MATCH_PARENT: 1603 // Window can't resize. Force root view to be windowSize. 1604 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1605 break; 1606 case ViewGroup.LayoutParams.WRAP_CONTENT: 1607 // Window can resize. Set max size for root view. 1608 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1609 break; 1610 default: 1611 // Window wants to be an exact size. Force root view to be that size. 1612 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1613 break; 1614 } 1615 return measureSpec; 1616 } 1617 1618 int mHardwareYOffset; 1619 int mResizeAlpha; 1620 final Paint mResizePaint = new Paint(); 1621 1622 public void onHardwarePreDraw(HardwareCanvas canvas) { 1623 canvas.translate(0, -mHardwareYOffset); 1624 } 1625 1626 public void onHardwarePostDraw(HardwareCanvas canvas) { 1627 if (mResizeBuffer != null) { 1628 mResizePaint.setAlpha(mResizeAlpha); 1629 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1630 } 1631 } 1632 1633 /** 1634 * @hide 1635 */ 1636 void outputDisplayList(View view) { 1637 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1638 DisplayList displayList = view.getDisplayList(); 1639 if (displayList != null) { 1640 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1641 } 1642 } 1643 } 1644 1645 /** 1646 * @see #PROPERTY_PROFILE_RENDERING 1647 */ 1648 private void profileRendering(boolean enabled) { 1649 if (mProfileRendering) { 1650 mRenderProfilingEnabled = enabled; 1651 if (mRenderProfiler == null) { 1652 mRenderProfiler = new Thread(new Runnable() { 1653 @Override 1654 public void run() { 1655 Log.d(TAG, "Starting profiling thread"); 1656 while (mRenderProfilingEnabled) { 1657 mAttachInfo.mHandler.post(new Runnable() { 1658 @Override 1659 public void run() { 1660 mDirty.set(0, 0, mWidth, mHeight); 1661 scheduleTraversals(); 1662 } 1663 }); 1664 try { 1665 // TODO: This should use vsync when we get an API 1666 Thread.sleep(15); 1667 } catch (InterruptedException e) { 1668 Log.d(TAG, "Exiting profiling thread"); 1669 } 1670 } 1671 } 1672 }, "Rendering Profiler"); 1673 mRenderProfiler.start(); 1674 } else { 1675 mRenderProfiler.interrupt(); 1676 mRenderProfiler = null; 1677 } 1678 } 1679 } 1680 1681 private void draw(boolean fullRedrawNeeded) { 1682 Surface surface = mSurface; 1683 if (surface == null || !surface.isValid()) { 1684 return; 1685 } 1686 1687 if (!sFirstDrawComplete) { 1688 synchronized (sFirstDrawHandlers) { 1689 sFirstDrawComplete = true; 1690 final int count = sFirstDrawHandlers.size(); 1691 for (int i = 0; i< count; i++) { 1692 post(sFirstDrawHandlers.get(i)); 1693 } 1694 } 1695 } 1696 1697 scrollToRectOrFocus(null, false); 1698 1699 if (mAttachInfo.mViewScrollChanged) { 1700 mAttachInfo.mViewScrollChanged = false; 1701 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1702 } 1703 1704 int yoff; 1705 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1706 if (animating) { 1707 yoff = mScroller.getCurrY(); 1708 } else { 1709 yoff = mScrollY; 1710 } 1711 if (mCurScrollY != yoff) { 1712 mCurScrollY = yoff; 1713 fullRedrawNeeded = true; 1714 } 1715 float appScale = mAttachInfo.mApplicationScale; 1716 boolean scalingRequired = mAttachInfo.mScalingRequired; 1717 1718 int resizeAlpha = 0; 1719 if (mResizeBuffer != null) { 1720 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1721 if (deltaTime < mResizeBufferDuration) { 1722 float amt = deltaTime/(float) mResizeBufferDuration; 1723 amt = mResizeInterpolator.getInterpolation(amt); 1724 animating = true; 1725 resizeAlpha = 255 - (int)(amt*255); 1726 } else { 1727 disposeResizeBuffer(); 1728 } 1729 } 1730 1731 Rect dirty = mDirty; 1732 if (mSurfaceHolder != null) { 1733 // The app owns the surface, we won't draw. 1734 dirty.setEmpty(); 1735 if (animating) { 1736 if (mScroller != null) { 1737 mScroller.abortAnimation(); 1738 } 1739 disposeResizeBuffer(); 1740 } 1741 return; 1742 } 1743 1744 if (fullRedrawNeeded) { 1745 mAttachInfo.mIgnoreDirtyState = true; 1746 dirty.union(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1747 } 1748 1749 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1750 if (!dirty.isEmpty() || mIsAnimating) { 1751 mIsAnimating = false; 1752 mHardwareYOffset = yoff; 1753 mResizeAlpha = resizeAlpha; 1754 1755 mCurrentDirty.set(dirty); 1756 mCurrentDirty.union(mPreviousDirty); 1757 mPreviousDirty.set(dirty); 1758 dirty.setEmpty(); 1759 1760 Rect currentDirty = mCurrentDirty; 1761 if (animating) { 1762 currentDirty = null; 1763 } 1764 1765 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty); 1766 } 1767 1768 if (animating) { 1769 mFullRedrawNeeded = true; 1770 scheduleTraversals(); 1771 } 1772 1773 return; 1774 } 1775 1776 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1777 Log.v(TAG, "Draw " + mView + "/" 1778 + mWindowAttributes.getTitle() 1779 + ": dirty={" + dirty.left + "," + dirty.top 1780 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1781 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1782 appScale + ", width=" + mWidth + ", height=" + mHeight); 1783 } 1784 1785 if (!dirty.isEmpty() || mIsAnimating) { 1786 Canvas canvas; 1787 try { 1788 int left = dirty.left; 1789 int top = dirty.top; 1790 int right = dirty.right; 1791 int bottom = dirty.bottom; 1792 1793 final long lockCanvasStartTime; 1794 if (ViewDebug.DEBUG_LATENCY) { 1795 lockCanvasStartTime = System.nanoTime(); 1796 } 1797 1798 canvas = surface.lockCanvas(dirty); 1799 1800 if (ViewDebug.DEBUG_LATENCY) { 1801 long now = System.nanoTime(); 1802 Log.d(TAG, "Latency: Spent " 1803 + ((now - lockCanvasStartTime) * 0.000001f) 1804 + "ms waiting for surface.lockCanvas()"); 1805 } 1806 1807 if (left != dirty.left || top != dirty.top || right != dirty.right || 1808 bottom != dirty.bottom) { 1809 mAttachInfo.mIgnoreDirtyState = true; 1810 } 1811 1812 // TODO: Do this in native 1813 canvas.setDensity(mDensity); 1814 } catch (Surface.OutOfResourcesException e) { 1815 Log.e(TAG, "OutOfResourcesException locking surface", e); 1816 try { 1817 if (!sWindowSession.outOfMemory(mWindow)) { 1818 Slog.w(TAG, "No processes killed for memory; killing self"); 1819 Process.killProcess(Process.myPid()); 1820 } 1821 } catch (RemoteException ex) { 1822 } 1823 mLayoutRequested = true; // ask wm for a new surface next time. 1824 return; 1825 } catch (IllegalArgumentException e) { 1826 Log.e(TAG, "IllegalArgumentException locking surface", e); 1827 // Don't assume this is due to out of memory, it could be 1828 // something else, and if it is something else then we could 1829 // kill stuff (or ourself) for no reason. 1830 mLayoutRequested = true; // ask wm for a new surface next time. 1831 return; 1832 } 1833 1834 try { 1835 if (!dirty.isEmpty() || mIsAnimating) { 1836 long startTime = 0L; 1837 1838 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1839 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1840 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1841 //canvas.drawARGB(255, 255, 0, 0); 1842 } 1843 1844 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1845 startTime = SystemClock.elapsedRealtime(); 1846 } 1847 1848 // If this bitmap's format includes an alpha channel, we 1849 // need to clear it before drawing so that the child will 1850 // properly re-composite its drawing on a transparent 1851 // background. This automatically respects the clip/dirty region 1852 // or 1853 // If we are applying an offset, we need to clear the area 1854 // where the offset doesn't appear to avoid having garbage 1855 // left in the blank areas. 1856 if (!canvas.isOpaque() || yoff != 0) { 1857 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1858 } 1859 1860 dirty.setEmpty(); 1861 mIsAnimating = false; 1862 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1863 mView.mPrivateFlags |= View.DRAWN; 1864 1865 if (DEBUG_DRAW) { 1866 Context cxt = mView.getContext(); 1867 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1868 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1869 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1870 } 1871 try { 1872 canvas.translate(0, -yoff); 1873 if (mTranslator != null) { 1874 mTranslator.translateCanvas(canvas); 1875 } 1876 canvas.setScreenDensity(scalingRequired 1877 ? DisplayMetrics.DENSITY_DEVICE : 0); 1878 mAttachInfo.mSetIgnoreDirtyState = false; 1879 mView.draw(canvas); 1880 } finally { 1881 if (!mAttachInfo.mSetIgnoreDirtyState) { 1882 // Only clear the flag if it was not set during the mView.draw() call 1883 mAttachInfo.mIgnoreDirtyState = false; 1884 } 1885 } 1886 1887 if (false && ViewDebug.consistencyCheckEnabled) { 1888 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1889 } 1890 1891 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1892 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1893 } 1894 } 1895 1896 } finally { 1897 surface.unlockCanvasAndPost(canvas); 1898 } 1899 } 1900 1901 if (LOCAL_LOGV) { 1902 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1903 } 1904 1905 if (animating) { 1906 mFullRedrawNeeded = true; 1907 scheduleTraversals(); 1908 } 1909 } 1910 1911 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1912 final View.AttachInfo attachInfo = mAttachInfo; 1913 final Rect ci = attachInfo.mContentInsets; 1914 final Rect vi = attachInfo.mVisibleInsets; 1915 int scrollY = 0; 1916 boolean handled = false; 1917 1918 if (vi.left > ci.left || vi.top > ci.top 1919 || vi.right > ci.right || vi.bottom > ci.bottom) { 1920 // We'll assume that we aren't going to change the scroll 1921 // offset, since we want to avoid that unless it is actually 1922 // going to make the focus visible... otherwise we scroll 1923 // all over the place. 1924 scrollY = mScrollY; 1925 // We can be called for two different situations: during a draw, 1926 // to update the scroll position if the focus has changed (in which 1927 // case 'rectangle' is null), or in response to a 1928 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1929 // is non-null and we just want to scroll to whatever that 1930 // rectangle is). 1931 View focus = mRealFocusedView; 1932 1933 // When in touch mode, focus points to the previously focused view, 1934 // which may have been removed from the view hierarchy. The following 1935 // line checks whether the view is still in our hierarchy. 1936 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1937 mRealFocusedView = null; 1938 return false; 1939 } 1940 1941 if (focus != mLastScrolledFocus) { 1942 // If the focus has changed, then ignore any requests to scroll 1943 // to a rectangle; first we want to make sure the entire focus 1944 // view is visible. 1945 rectangle = null; 1946 } 1947 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 1948 + " rectangle=" + rectangle + " ci=" + ci 1949 + " vi=" + vi); 1950 if (focus == mLastScrolledFocus && !mScrollMayChange 1951 && rectangle == null) { 1952 // Optimization: if the focus hasn't changed since last 1953 // time, and no layout has happened, then just leave things 1954 // as they are. 1955 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 1956 + mScrollY + " vi=" + vi.toShortString()); 1957 } else if (focus != null) { 1958 // We need to determine if the currently focused view is 1959 // within the visible part of the window and, if not, apply 1960 // a pan so it can be seen. 1961 mLastScrolledFocus = focus; 1962 mScrollMayChange = false; 1963 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 1964 // Try to find the rectangle from the focus view. 1965 if (focus.getGlobalVisibleRect(mVisRect, null)) { 1966 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 1967 + mView.getWidth() + " h=" + mView.getHeight() 1968 + " ci=" + ci.toShortString() 1969 + " vi=" + vi.toShortString()); 1970 if (rectangle == null) { 1971 focus.getFocusedRect(mTempRect); 1972 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 1973 + ": focusRect=" + mTempRect.toShortString()); 1974 if (mView instanceof ViewGroup) { 1975 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 1976 focus, mTempRect); 1977 } 1978 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 1979 "Focus in window: focusRect=" 1980 + mTempRect.toShortString() 1981 + " visRect=" + mVisRect.toShortString()); 1982 } else { 1983 mTempRect.set(rectangle); 1984 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 1985 "Request scroll to rect: " 1986 + mTempRect.toShortString() 1987 + " visRect=" + mVisRect.toShortString()); 1988 } 1989 if (mTempRect.intersect(mVisRect)) { 1990 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 1991 "Focus window visible rect: " 1992 + mTempRect.toShortString()); 1993 if (mTempRect.height() > 1994 (mView.getHeight()-vi.top-vi.bottom)) { 1995 // If the focus simply is not going to fit, then 1996 // best is probably just to leave things as-is. 1997 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 1998 "Too tall; leaving scrollY=" + scrollY); 1999 } else if ((mTempRect.top-scrollY) < vi.top) { 2000 scrollY -= vi.top - (mTempRect.top-scrollY); 2001 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2002 "Top covered; scrollY=" + scrollY); 2003 } else if ((mTempRect.bottom-scrollY) 2004 > (mView.getHeight()-vi.bottom)) { 2005 scrollY += (mTempRect.bottom-scrollY) 2006 - (mView.getHeight()-vi.bottom); 2007 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2008 "Bottom covered; scrollY=" + scrollY); 2009 } 2010 handled = true; 2011 } 2012 } 2013 } 2014 } 2015 2016 if (scrollY != mScrollY) { 2017 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2018 + mScrollY + " , new=" + scrollY); 2019 if (!immediate && mResizeBuffer == null) { 2020 if (mScroller == null) { 2021 mScroller = new Scroller(mView.getContext()); 2022 } 2023 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2024 } else if (mScroller != null) { 2025 mScroller.abortAnimation(); 2026 } 2027 mScrollY = scrollY; 2028 } 2029 2030 return handled; 2031 } 2032 2033 public void requestChildFocus(View child, View focused) { 2034 checkThread(); 2035 if (mFocusedView != focused) { 2036 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2037 scheduleTraversals(); 2038 } 2039 mFocusedView = mRealFocusedView = focused; 2040 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2041 + mFocusedView); 2042 } 2043 2044 public void clearChildFocus(View child) { 2045 checkThread(); 2046 2047 View oldFocus = mFocusedView; 2048 2049 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2050 mFocusedView = mRealFocusedView = null; 2051 if (mView != null && !mView.hasFocus()) { 2052 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2053 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2054 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2055 } 2056 } else if (oldFocus != null) { 2057 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2058 } 2059 } 2060 2061 2062 public void focusableViewAvailable(View v) { 2063 checkThread(); 2064 2065 if (mView != null) { 2066 if (!mView.hasFocus()) { 2067 v.requestFocus(); 2068 } else { 2069 // the one case where will transfer focus away from the current one 2070 // is if the current view is a view group that prefers to give focus 2071 // to its children first AND the view is a descendant of it. 2072 mFocusedView = mView.findFocus(); 2073 boolean descendantsHaveDibsOnFocus = 2074 (mFocusedView instanceof ViewGroup) && 2075 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2076 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2077 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2078 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2079 v.requestFocus(); 2080 } 2081 } 2082 } 2083 } 2084 2085 public void recomputeViewAttributes(View child) { 2086 checkThread(); 2087 if (mView == child) { 2088 mAttachInfo.mRecomputeGlobalAttributes = true; 2089 if (!mWillDrawSoon) { 2090 scheduleTraversals(); 2091 } 2092 } 2093 } 2094 2095 void dispatchDetachedFromWindow() { 2096 if (mView != null && mView.mAttachInfo != null) { 2097 mView.dispatchDetachedFromWindow(); 2098 } 2099 2100 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2101 mAccessibilityManager.removeAccessibilityStateChangeListener( 2102 mAccessibilityInteractionConnectionManager); 2103 removeSendWindowContentChangedCallback(); 2104 2105 mView = null; 2106 mAttachInfo.mRootView = null; 2107 mAttachInfo.mSurface = null; 2108 2109 destroyHardwareRenderer(); 2110 2111 mSurface.release(); 2112 2113 if (mInputChannel != null) { 2114 if (mInputQueueCallback != null) { 2115 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2116 mInputQueueCallback = null; 2117 } else { 2118 InputQueue.unregisterInputChannel(mInputChannel); 2119 } 2120 } 2121 try { 2122 sWindowSession.remove(mWindow); 2123 } catch (RemoteException e) { 2124 } 2125 2126 // Dispose the input channel after removing the window so the Window Manager 2127 // doesn't interpret the input channel being closed as an abnormal termination. 2128 if (mInputChannel != null) { 2129 mInputChannel.dispose(); 2130 mInputChannel = null; 2131 } 2132 } 2133 2134 void updateConfiguration(Configuration config, boolean force) { 2135 if (DEBUG_CONFIGURATION) Log.v(TAG, 2136 "Applying new config to window " 2137 + mWindowAttributes.getTitle() 2138 + ": " + config); 2139 2140 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2141 if (ci != null) { 2142 config = new Configuration(config); 2143 ci.applyToConfiguration(config); 2144 } 2145 2146 synchronized (sConfigCallbacks) { 2147 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2148 sConfigCallbacks.get(i).onConfigurationChanged(config); 2149 } 2150 } 2151 if (mView != null) { 2152 // At this point the resources have been updated to 2153 // have the most recent config, whatever that is. Use 2154 // the on in them which may be newer. 2155 config = mView.getResources().getConfiguration(); 2156 if (force || mLastConfiguration.diff(config) != 0) { 2157 mLastConfiguration.setTo(config); 2158 mView.dispatchConfigurationChanged(config); 2159 } 2160 } 2161 } 2162 2163 /** 2164 * Return true if child is an ancestor of parent, (or equal to the parent). 2165 */ 2166 private static boolean isViewDescendantOf(View child, View parent) { 2167 if (child == parent) { 2168 return true; 2169 } 2170 2171 final ViewParent theParent = child.getParent(); 2172 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2173 } 2174 2175 private static void forceLayout(View view) { 2176 view.forceLayout(); 2177 if (view instanceof ViewGroup) { 2178 ViewGroup group = (ViewGroup) view; 2179 final int count = group.getChildCount(); 2180 for (int i = 0; i < count; i++) { 2181 forceLayout(group.getChildAt(i)); 2182 } 2183 } 2184 } 2185 2186 public final static int DO_TRAVERSAL = 1000; 2187 public final static int DIE = 1001; 2188 public final static int RESIZED = 1002; 2189 public final static int RESIZED_REPORT = 1003; 2190 public final static int WINDOW_FOCUS_CHANGED = 1004; 2191 public final static int DISPATCH_KEY = 1005; 2192 public final static int DISPATCH_POINTER = 1006; 2193 public final static int DISPATCH_TRACKBALL = 1007; 2194 public final static int DISPATCH_APP_VISIBILITY = 1008; 2195 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2196 public final static int FINISHED_EVENT = 1010; 2197 public final static int DISPATCH_KEY_FROM_IME = 1011; 2198 public final static int FINISH_INPUT_CONNECTION = 1012; 2199 public final static int CHECK_FOCUS = 1013; 2200 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2201 public final static int DISPATCH_DRAG_EVENT = 1015; 2202 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2203 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2204 public final static int DISPATCH_GENERIC_MOTION = 1018; 2205 public final static int UPDATE_CONFIGURATION = 1019; 2206 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2207 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2208 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2209 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2210 2211 @Override 2212 public String getMessageName(Message message) { 2213 switch (message.what) { 2214 case DO_TRAVERSAL: 2215 return "DO_TRAVERSAL"; 2216 case DIE: 2217 return "DIE"; 2218 case RESIZED: 2219 return "RESIZED"; 2220 case RESIZED_REPORT: 2221 return "RESIZED_REPORT"; 2222 case WINDOW_FOCUS_CHANGED: 2223 return "WINDOW_FOCUS_CHANGED"; 2224 case DISPATCH_KEY: 2225 return "DISPATCH_KEY"; 2226 case DISPATCH_POINTER: 2227 return "DISPATCH_POINTER"; 2228 case DISPATCH_TRACKBALL: 2229 return "DISPATCH_TRACKBALL"; 2230 case DISPATCH_APP_VISIBILITY: 2231 return "DISPATCH_APP_VISIBILITY"; 2232 case DISPATCH_GET_NEW_SURFACE: 2233 return "DISPATCH_GET_NEW_SURFACE"; 2234 case FINISHED_EVENT: 2235 return "FINISHED_EVENT"; 2236 case DISPATCH_KEY_FROM_IME: 2237 return "DISPATCH_KEY_FROM_IME"; 2238 case FINISH_INPUT_CONNECTION: 2239 return "FINISH_INPUT_CONNECTION"; 2240 case CHECK_FOCUS: 2241 return "CHECK_FOCUS"; 2242 case CLOSE_SYSTEM_DIALOGS: 2243 return "CLOSE_SYSTEM_DIALOGS"; 2244 case DISPATCH_DRAG_EVENT: 2245 return "DISPATCH_DRAG_EVENT"; 2246 case DISPATCH_DRAG_LOCATION_EVENT: 2247 return "DISPATCH_DRAG_LOCATION_EVENT"; 2248 case DISPATCH_SYSTEM_UI_VISIBILITY: 2249 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2250 case DISPATCH_GENERIC_MOTION: 2251 return "DISPATCH_GENERIC_MOTION"; 2252 case UPDATE_CONFIGURATION: 2253 return "UPDATE_CONFIGURATION"; 2254 case DO_PERFORM_ACCESSIBILITY_ACTION: 2255 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2256 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2257 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2258 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2259 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2260 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2261 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2262 2263 } 2264 return super.getMessageName(message); 2265 } 2266 2267 @Override 2268 public void handleMessage(Message msg) { 2269 switch (msg.what) { 2270 case View.AttachInfo.INVALIDATE_MSG: 2271 ((View) msg.obj).invalidate(); 2272 break; 2273 case View.AttachInfo.INVALIDATE_RECT_MSG: 2274 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2275 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2276 info.release(); 2277 break; 2278 case DO_TRAVERSAL: 2279 if (mProfile) { 2280 Debug.startMethodTracing("ViewAncestor"); 2281 } 2282 2283 final long traversalStartTime; 2284 if (ViewDebug.DEBUG_LATENCY) { 2285 traversalStartTime = System.nanoTime(); 2286 mLastDrawDurationNanos = 0; 2287 } 2288 2289 performTraversals(); 2290 2291 if (ViewDebug.DEBUG_LATENCY) { 2292 long now = System.nanoTime(); 2293 Log.d(TAG, "Latency: Spent " 2294 + ((now - traversalStartTime) * 0.000001f) 2295 + "ms in performTraversals(), with " 2296 + (mLastDrawDurationNanos * 0.000001f) 2297 + "ms of that time in draw()"); 2298 mLastTraversalFinishedTimeNanos = now; 2299 } 2300 2301 if (mProfile) { 2302 Debug.stopMethodTracing(); 2303 mProfile = false; 2304 } 2305 break; 2306 case FINISHED_EVENT: 2307 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2308 break; 2309 case DISPATCH_KEY: 2310 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2311 break; 2312 case DISPATCH_POINTER: 2313 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2314 break; 2315 case DISPATCH_TRACKBALL: 2316 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2317 break; 2318 case DISPATCH_GENERIC_MOTION: 2319 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2320 break; 2321 case DISPATCH_APP_VISIBILITY: 2322 handleAppVisibility(msg.arg1 != 0); 2323 break; 2324 case DISPATCH_GET_NEW_SURFACE: 2325 handleGetNewSurface(); 2326 break; 2327 case RESIZED: 2328 ResizedInfo ri = (ResizedInfo)msg.obj; 2329 2330 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2331 && mPendingContentInsets.equals(ri.coveredInsets) 2332 && mPendingVisibleInsets.equals(ri.visibleInsets) 2333 && ((ResizedInfo)msg.obj).newConfig == null) { 2334 break; 2335 } 2336 // fall through... 2337 case RESIZED_REPORT: 2338 if (mAdded) { 2339 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2340 if (config != null) { 2341 updateConfiguration(config, false); 2342 } 2343 mWinFrame.left = 0; 2344 mWinFrame.right = msg.arg1; 2345 mWinFrame.top = 0; 2346 mWinFrame.bottom = msg.arg2; 2347 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2348 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2349 if (msg.what == RESIZED_REPORT) { 2350 mReportNextDraw = true; 2351 } 2352 2353 if (mView != null) { 2354 forceLayout(mView); 2355 } 2356 requestLayout(); 2357 } 2358 break; 2359 case WINDOW_FOCUS_CHANGED: { 2360 if (mAdded) { 2361 boolean hasWindowFocus = msg.arg1 != 0; 2362 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2363 2364 profileRendering(hasWindowFocus); 2365 2366 if (hasWindowFocus) { 2367 boolean inTouchMode = msg.arg2 != 0; 2368 ensureTouchModeLocally(inTouchMode); 2369 2370 if (mAttachInfo.mHardwareRenderer != null && 2371 mSurface != null && mSurface.isValid()) { 2372 mFullRedrawNeeded = true; 2373 try { 2374 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2375 mAttachInfo, mHolder); 2376 } catch (Surface.OutOfResourcesException e) { 2377 Log.e(TAG, "OutOfResourcesException locking surface", e); 2378 try { 2379 if (!sWindowSession.outOfMemory(mWindow)) { 2380 Slog.w(TAG, "No processes killed for memory; killing self"); 2381 Process.killProcess(Process.myPid()); 2382 } 2383 } catch (RemoteException ex) { 2384 } 2385 // Retry in a bit. 2386 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2387 return; 2388 } 2389 } 2390 } 2391 2392 mLastWasImTarget = WindowManager.LayoutParams 2393 .mayUseInputMethod(mWindowAttributes.flags); 2394 2395 InputMethodManager imm = InputMethodManager.peekInstance(); 2396 if (mView != null) { 2397 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2398 imm.startGettingWindowFocus(mView); 2399 } 2400 mAttachInfo.mKeyDispatchState.reset(); 2401 mView.dispatchWindowFocusChanged(hasWindowFocus); 2402 } 2403 2404 // Note: must be done after the focus change callbacks, 2405 // so all of the view state is set up correctly. 2406 if (hasWindowFocus) { 2407 if (imm != null && mLastWasImTarget) { 2408 imm.onWindowFocus(mView, mView.findFocus(), 2409 mWindowAttributes.softInputMode, 2410 !mHasHadWindowFocus, mWindowAttributes.flags); 2411 } 2412 // Clear the forward bit. We can just do this directly, since 2413 // the window manager doesn't care about it. 2414 mWindowAttributes.softInputMode &= 2415 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2416 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2417 .softInputMode &= 2418 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2419 mHasHadWindowFocus = true; 2420 } 2421 2422 if (hasWindowFocus && mView != null) { 2423 sendAccessibilityEvents(); 2424 } 2425 } 2426 } break; 2427 case DIE: 2428 doDie(); 2429 break; 2430 case DISPATCH_KEY_FROM_IME: { 2431 if (LOCAL_LOGV) Log.v( 2432 TAG, "Dispatching key " 2433 + msg.obj + " from IME to " + mView); 2434 KeyEvent event = (KeyEvent)msg.obj; 2435 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2436 // The IME is trying to say this event is from the 2437 // system! Bad bad bad! 2438 //noinspection UnusedAssignment 2439 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2440 } 2441 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2442 } break; 2443 case FINISH_INPUT_CONNECTION: { 2444 InputMethodManager imm = InputMethodManager.peekInstance(); 2445 if (imm != null) { 2446 imm.reportFinishInputConnection((InputConnection)msg.obj); 2447 } 2448 } break; 2449 case CHECK_FOCUS: { 2450 InputMethodManager imm = InputMethodManager.peekInstance(); 2451 if (imm != null) { 2452 imm.checkFocus(); 2453 } 2454 } break; 2455 case CLOSE_SYSTEM_DIALOGS: { 2456 if (mView != null) { 2457 mView.onCloseSystemDialogs((String)msg.obj); 2458 } 2459 } break; 2460 case DISPATCH_DRAG_EVENT: 2461 case DISPATCH_DRAG_LOCATION_EVENT: { 2462 DragEvent event = (DragEvent)msg.obj; 2463 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2464 handleDragEvent(event); 2465 } break; 2466 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2467 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2468 } break; 2469 case UPDATE_CONFIGURATION: { 2470 Configuration config = (Configuration)msg.obj; 2471 if (config.isOtherSeqNewer(mLastConfiguration)) { 2472 config = mLastConfiguration; 2473 } 2474 updateConfiguration(config, false); 2475 } break; 2476 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2477 if (mView != null) { 2478 getAccessibilityInteractionController() 2479 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2480 } 2481 } break; 2482 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2483 if (mView != null) { 2484 getAccessibilityInteractionController() 2485 .perfromAccessibilityActionUiThread(msg); 2486 } 2487 } break; 2488 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2489 if (mView != null) { 2490 getAccessibilityInteractionController() 2491 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2492 } 2493 } break; 2494 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2495 if (mView != null) { 2496 getAccessibilityInteractionController() 2497 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2498 } 2499 } break; 2500 } 2501 } 2502 2503 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2504 if (mFinishedCallback != null) { 2505 Slog.w(TAG, "Received a new input event from the input queue but there is " 2506 + "already an unfinished input event in progress."); 2507 } 2508 2509 if (ViewDebug.DEBUG_LATENCY) { 2510 mInputEventReceiveTimeNanos = System.nanoTime(); 2511 mInputEventDeliverTimeNanos = 0; 2512 mInputEventDeliverPostImeTimeNanos = 0; 2513 } 2514 2515 mFinishedCallback = finishedCallback; 2516 } 2517 2518 private void finishInputEvent(InputEvent event, boolean handled) { 2519 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2520 2521 if (mFinishedCallback == null) { 2522 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2523 + "is finished but there is no input event actually in progress."); 2524 return; 2525 } 2526 2527 if (ViewDebug.DEBUG_LATENCY) { 2528 final long now = System.nanoTime(); 2529 final long eventTime = event.getEventTimeNano(); 2530 final StringBuilder msg = new StringBuilder(); 2531 msg.append("Latency: Spent "); 2532 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2533 msg.append("ms processing "); 2534 if (event instanceof KeyEvent) { 2535 final KeyEvent keyEvent = (KeyEvent)event; 2536 msg.append("key event, action="); 2537 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2538 } else { 2539 final MotionEvent motionEvent = (MotionEvent)event; 2540 msg.append("motion event, action="); 2541 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2542 msg.append(", historySize="); 2543 msg.append(motionEvent.getHistorySize()); 2544 } 2545 msg.append(", handled="); 2546 msg.append(handled); 2547 msg.append(", received at +"); 2548 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2549 if (mInputEventDeliverTimeNanos != 0) { 2550 msg.append("ms, delivered at +"); 2551 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2552 } 2553 if (mInputEventDeliverPostImeTimeNanos != 0) { 2554 msg.append("ms, delivered post IME at +"); 2555 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2556 } 2557 msg.append("ms, finished at +"); 2558 msg.append((now - eventTime) * 0.000001f); 2559 msg.append("ms."); 2560 Log.d(TAG, msg.toString()); 2561 } 2562 2563 mFinishedCallback.finished(handled); 2564 mFinishedCallback = null; 2565 } 2566 2567 /** 2568 * Something in the current window tells us we need to change the touch mode. For 2569 * example, we are not in touch mode, and the user touches the screen. 2570 * 2571 * If the touch mode has changed, tell the window manager, and handle it locally. 2572 * 2573 * @param inTouchMode Whether we want to be in touch mode. 2574 * @return True if the touch mode changed and focus changed was changed as a result 2575 */ 2576 boolean ensureTouchMode(boolean inTouchMode) { 2577 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2578 + "touch mode is " + mAttachInfo.mInTouchMode); 2579 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2580 2581 // tell the window manager 2582 try { 2583 sWindowSession.setInTouchMode(inTouchMode); 2584 } catch (RemoteException e) { 2585 throw new RuntimeException(e); 2586 } 2587 2588 // handle the change 2589 return ensureTouchModeLocally(inTouchMode); 2590 } 2591 2592 /** 2593 * Ensure that the touch mode for this window is set, and if it is changing, 2594 * take the appropriate action. 2595 * @param inTouchMode Whether we want to be in touch mode. 2596 * @return True if the touch mode changed and focus changed was changed as a result 2597 */ 2598 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2599 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2600 + "touch mode is " + mAttachInfo.mInTouchMode); 2601 2602 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2603 2604 mAttachInfo.mInTouchMode = inTouchMode; 2605 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2606 2607 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2608 } 2609 2610 private boolean enterTouchMode() { 2611 if (mView != null) { 2612 if (mView.hasFocus()) { 2613 // note: not relying on mFocusedView here because this could 2614 // be when the window is first being added, and mFocused isn't 2615 // set yet. 2616 final View focused = mView.findFocus(); 2617 if (focused != null && !focused.isFocusableInTouchMode()) { 2618 2619 final ViewGroup ancestorToTakeFocus = 2620 findAncestorToTakeFocusInTouchMode(focused); 2621 if (ancestorToTakeFocus != null) { 2622 // there is an ancestor that wants focus after its descendants that 2623 // is focusable in touch mode.. give it focus 2624 return ancestorToTakeFocus.requestFocus(); 2625 } else { 2626 // nothing appropriate to have focus in touch mode, clear it out 2627 mView.unFocus(); 2628 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2629 mFocusedView = null; 2630 return true; 2631 } 2632 } 2633 } 2634 } 2635 return false; 2636 } 2637 2638 2639 /** 2640 * Find an ancestor of focused that wants focus after its descendants and is 2641 * focusable in touch mode. 2642 * @param focused The currently focused view. 2643 * @return An appropriate view, or null if no such view exists. 2644 */ 2645 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2646 ViewParent parent = focused.getParent(); 2647 while (parent instanceof ViewGroup) { 2648 final ViewGroup vgParent = (ViewGroup) parent; 2649 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2650 && vgParent.isFocusableInTouchMode()) { 2651 return vgParent; 2652 } 2653 if (vgParent.isRootNamespace()) { 2654 return null; 2655 } else { 2656 parent = vgParent.getParent(); 2657 } 2658 } 2659 return null; 2660 } 2661 2662 private boolean leaveTouchMode() { 2663 if (mView != null) { 2664 if (mView.hasFocus()) { 2665 // i learned the hard way to not trust mFocusedView :) 2666 mFocusedView = mView.findFocus(); 2667 if (!(mFocusedView instanceof ViewGroup)) { 2668 // some view has focus, let it keep it 2669 return false; 2670 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2671 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2672 // some view group has focus, and doesn't prefer its children 2673 // over itself for focus, so let them keep it. 2674 return false; 2675 } 2676 } 2677 2678 // find the best view to give focus to in this brave new non-touch-mode 2679 // world 2680 final View focused = focusSearch(null, View.FOCUS_DOWN); 2681 if (focused != null) { 2682 return focused.requestFocus(View.FOCUS_DOWN); 2683 } 2684 } 2685 return false; 2686 } 2687 2688 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2689 if (ViewDebug.DEBUG_LATENCY) { 2690 mInputEventDeliverTimeNanos = System.nanoTime(); 2691 } 2692 2693 final boolean isTouchEvent = event.isTouchEvent(); 2694 if (mInputEventConsistencyVerifier != null) { 2695 if (isTouchEvent) { 2696 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2697 } else { 2698 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2699 } 2700 } 2701 2702 // If there is no view, then the event will not be handled. 2703 if (mView == null || !mAdded) { 2704 finishMotionEvent(event, sendDone, false); 2705 return; 2706 } 2707 2708 // Translate the pointer event for compatibility, if needed. 2709 if (mTranslator != null) { 2710 mTranslator.translateEventInScreenToAppWindow(event); 2711 } 2712 2713 // Enter touch mode on down or scroll. 2714 final int action = event.getAction(); 2715 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2716 ensureTouchMode(true); 2717 } 2718 2719 // Offset the scroll position. 2720 if (mCurScrollY != 0) { 2721 event.offsetLocation(0, mCurScrollY); 2722 } 2723 if (MEASURE_LATENCY) { 2724 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2725 } 2726 2727 // Remember the touch position for possible drag-initiation. 2728 if (isTouchEvent) { 2729 mLastTouchPoint.x = event.getRawX(); 2730 mLastTouchPoint.y = event.getRawY(); 2731 } 2732 2733 // Dispatch touch to view hierarchy. 2734 boolean handled = mView.dispatchPointerEvent(event); 2735 if (MEASURE_LATENCY) { 2736 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2737 } 2738 if (handled) { 2739 finishMotionEvent(event, sendDone, true); 2740 return; 2741 } 2742 2743 // Pointer event was unhandled. 2744 finishMotionEvent(event, sendDone, false); 2745 } 2746 2747 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2748 event.recycle(); 2749 if (sendDone) { 2750 finishInputEvent(event, handled); 2751 } 2752 //noinspection ConstantConditions 2753 if (LOCAL_LOGV || WATCH_POINTER) { 2754 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2755 Log.i(TAG, "Done dispatching!"); 2756 } 2757 } 2758 } 2759 2760 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2761 if (ViewDebug.DEBUG_LATENCY) { 2762 mInputEventDeliverTimeNanos = System.nanoTime(); 2763 } 2764 2765 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2766 2767 if (mInputEventConsistencyVerifier != null) { 2768 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2769 } 2770 2771 // If there is no view, then the event will not be handled. 2772 if (mView == null || !mAdded) { 2773 finishMotionEvent(event, sendDone, false); 2774 return; 2775 } 2776 2777 // Deliver the trackball event to the view. 2778 if (mView.dispatchTrackballEvent(event)) { 2779 // If we reach this, we delivered a trackball event to mView and 2780 // mView consumed it. Because we will not translate the trackball 2781 // event into a key event, touch mode will not exit, so we exit 2782 // touch mode here. 2783 ensureTouchMode(false); 2784 2785 finishMotionEvent(event, sendDone, true); 2786 mLastTrackballTime = Integer.MIN_VALUE; 2787 return; 2788 } 2789 2790 // Translate the trackball event into DPAD keys and try to deliver those. 2791 final TrackballAxis x = mTrackballAxisX; 2792 final TrackballAxis y = mTrackballAxisY; 2793 2794 long curTime = SystemClock.uptimeMillis(); 2795 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2796 // It has been too long since the last movement, 2797 // so restart at the beginning. 2798 x.reset(0); 2799 y.reset(0); 2800 mLastTrackballTime = curTime; 2801 } 2802 2803 final int action = event.getAction(); 2804 final int metaState = event.getMetaState(); 2805 switch (action) { 2806 case MotionEvent.ACTION_DOWN: 2807 x.reset(2); 2808 y.reset(2); 2809 deliverKeyEvent(new KeyEvent(curTime, curTime, 2810 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2811 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2812 InputDevice.SOURCE_KEYBOARD), false); 2813 break; 2814 case MotionEvent.ACTION_UP: 2815 x.reset(2); 2816 y.reset(2); 2817 deliverKeyEvent(new KeyEvent(curTime, curTime, 2818 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2819 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2820 InputDevice.SOURCE_KEYBOARD), false); 2821 break; 2822 } 2823 2824 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2825 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2826 + " move=" + event.getX() 2827 + " / Y=" + y.position + " step=" 2828 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2829 + " move=" + event.getY()); 2830 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2831 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2832 2833 // Generate DPAD events based on the trackball movement. 2834 // We pick the axis that has moved the most as the direction of 2835 // the DPAD. When we generate DPAD events for one axis, then the 2836 // other axis is reset -- we don't want to perform DPAD jumps due 2837 // to slight movements in the trackball when making major movements 2838 // along the other axis. 2839 int keycode = 0; 2840 int movement = 0; 2841 float accel = 1; 2842 if (xOff > yOff) { 2843 movement = x.generate((2/event.getXPrecision())); 2844 if (movement != 0) { 2845 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2846 : KeyEvent.KEYCODE_DPAD_LEFT; 2847 accel = x.acceleration; 2848 y.reset(2); 2849 } 2850 } else if (yOff > 0) { 2851 movement = y.generate((2/event.getYPrecision())); 2852 if (movement != 0) { 2853 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2854 : KeyEvent.KEYCODE_DPAD_UP; 2855 accel = y.acceleration; 2856 x.reset(2); 2857 } 2858 } 2859 2860 if (keycode != 0) { 2861 if (movement < 0) movement = -movement; 2862 int accelMovement = (int)(movement * accel); 2863 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2864 + " accelMovement=" + accelMovement 2865 + " accel=" + accel); 2866 if (accelMovement > movement) { 2867 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2868 + keycode); 2869 movement--; 2870 int repeatCount = accelMovement - movement; 2871 deliverKeyEvent(new KeyEvent(curTime, curTime, 2872 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2873 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2874 InputDevice.SOURCE_KEYBOARD), false); 2875 } 2876 while (movement > 0) { 2877 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2878 + keycode); 2879 movement--; 2880 curTime = SystemClock.uptimeMillis(); 2881 deliverKeyEvent(new KeyEvent(curTime, curTime, 2882 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2883 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2884 InputDevice.SOURCE_KEYBOARD), false); 2885 deliverKeyEvent(new KeyEvent(curTime, curTime, 2886 KeyEvent.ACTION_UP, keycode, 0, metaState, 2887 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2888 InputDevice.SOURCE_KEYBOARD), false); 2889 } 2890 mLastTrackballTime = curTime; 2891 } 2892 2893 // Unfortunately we can't tell whether the application consumed the keys, so 2894 // we always consider the trackball event handled. 2895 finishMotionEvent(event, sendDone, true); 2896 } 2897 2898 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2899 if (ViewDebug.DEBUG_LATENCY) { 2900 mInputEventDeliverTimeNanos = System.nanoTime(); 2901 } 2902 2903 if (mInputEventConsistencyVerifier != null) { 2904 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2905 } 2906 2907 final int source = event.getSource(); 2908 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2909 2910 // If there is no view, then the event will not be handled. 2911 if (mView == null || !mAdded) { 2912 if (isJoystick) { 2913 updateJoystickDirection(event, false); 2914 } 2915 finishMotionEvent(event, sendDone, false); 2916 return; 2917 } 2918 2919 // Deliver the event to the view. 2920 if (mView.dispatchGenericMotionEvent(event)) { 2921 if (isJoystick) { 2922 updateJoystickDirection(event, false); 2923 } 2924 finishMotionEvent(event, sendDone, true); 2925 return; 2926 } 2927 2928 if (isJoystick) { 2929 // Translate the joystick event into DPAD keys and try to deliver those. 2930 updateJoystickDirection(event, true); 2931 finishMotionEvent(event, sendDone, true); 2932 } else { 2933 finishMotionEvent(event, sendDone, false); 2934 } 2935 } 2936 2937 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 2938 final long time = event.getEventTime(); 2939 final int metaState = event.getMetaState(); 2940 final int deviceId = event.getDeviceId(); 2941 final int source = event.getSource(); 2942 2943 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 2944 if (xDirection == 0) { 2945 xDirection = joystickAxisValueToDirection(event.getX()); 2946 } 2947 2948 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 2949 if (yDirection == 0) { 2950 yDirection = joystickAxisValueToDirection(event.getY()); 2951 } 2952 2953 if (xDirection != mLastJoystickXDirection) { 2954 if (mLastJoystickXKeyCode != 0) { 2955 deliverKeyEvent(new KeyEvent(time, time, 2956 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 2957 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 2958 mLastJoystickXKeyCode = 0; 2959 } 2960 2961 mLastJoystickXDirection = xDirection; 2962 2963 if (xDirection != 0 && synthesizeNewKeys) { 2964 mLastJoystickXKeyCode = xDirection > 0 2965 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 2966 deliverKeyEvent(new KeyEvent(time, time, 2967 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 2968 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 2969 } 2970 } 2971 2972 if (yDirection != mLastJoystickYDirection) { 2973 if (mLastJoystickYKeyCode != 0) { 2974 deliverKeyEvent(new KeyEvent(time, time, 2975 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 2976 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 2977 mLastJoystickYKeyCode = 0; 2978 } 2979 2980 mLastJoystickYDirection = yDirection; 2981 2982 if (yDirection != 0 && synthesizeNewKeys) { 2983 mLastJoystickYKeyCode = yDirection > 0 2984 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 2985 deliverKeyEvent(new KeyEvent(time, time, 2986 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 2987 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 2988 } 2989 } 2990 } 2991 2992 private static int joystickAxisValueToDirection(float value) { 2993 if (value >= 0.5f) { 2994 return 1; 2995 } else if (value <= -0.5f) { 2996 return -1; 2997 } else { 2998 return 0; 2999 } 3000 } 3001 3002 /** 3003 * Returns true if the key is used for keyboard navigation. 3004 * @param keyEvent The key event. 3005 * @return True if the key is used for keyboard navigation. 3006 */ 3007 private static boolean isNavigationKey(KeyEvent keyEvent) { 3008 switch (keyEvent.getKeyCode()) { 3009 case KeyEvent.KEYCODE_DPAD_LEFT: 3010 case KeyEvent.KEYCODE_DPAD_RIGHT: 3011 case KeyEvent.KEYCODE_DPAD_UP: 3012 case KeyEvent.KEYCODE_DPAD_DOWN: 3013 case KeyEvent.KEYCODE_DPAD_CENTER: 3014 case KeyEvent.KEYCODE_PAGE_UP: 3015 case KeyEvent.KEYCODE_PAGE_DOWN: 3016 case KeyEvent.KEYCODE_MOVE_HOME: 3017 case KeyEvent.KEYCODE_MOVE_END: 3018 case KeyEvent.KEYCODE_TAB: 3019 case KeyEvent.KEYCODE_SPACE: 3020 case KeyEvent.KEYCODE_ENTER: 3021 return true; 3022 } 3023 return false; 3024 } 3025 3026 /** 3027 * Returns true if the key is used for typing. 3028 * @param keyEvent The key event. 3029 * @return True if the key is used for typing. 3030 */ 3031 private static boolean isTypingKey(KeyEvent keyEvent) { 3032 return keyEvent.getUnicodeChar() > 0; 3033 } 3034 3035 /** 3036 * See if the key event means we should leave touch mode (and leave touch mode if so). 3037 * @param event The key event. 3038 * @return Whether this key event should be consumed (meaning the act of 3039 * leaving touch mode alone is considered the event). 3040 */ 3041 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3042 // Only relevant in touch mode. 3043 if (!mAttachInfo.mInTouchMode) { 3044 return false; 3045 } 3046 3047 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3048 final int action = event.getAction(); 3049 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3050 return false; 3051 } 3052 3053 // Don't leave touch mode if the IME told us not to. 3054 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3055 return false; 3056 } 3057 3058 // If the key can be used for keyboard navigation then leave touch mode 3059 // and select a focused view if needed (in ensureTouchMode). 3060 // When a new focused view is selected, we consume the navigation key because 3061 // navigation doesn't make much sense unless a view already has focus so 3062 // the key's purpose is to set focus. 3063 if (isNavigationKey(event)) { 3064 return ensureTouchMode(false); 3065 } 3066 3067 // If the key can be used for typing then leave touch mode 3068 // and select a focused view if needed (in ensureTouchMode). 3069 // Always allow the view to process the typing key. 3070 if (isTypingKey(event)) { 3071 ensureTouchMode(false); 3072 return false; 3073 } 3074 3075 return false; 3076 } 3077 3078 int enqueuePendingEvent(Object event, boolean sendDone) { 3079 int seq = mPendingEventSeq+1; 3080 if (seq < 0) seq = 0; 3081 mPendingEventSeq = seq; 3082 mPendingEvents.put(seq, event); 3083 return sendDone ? seq : -seq; 3084 } 3085 3086 Object retrievePendingEvent(int seq) { 3087 if (seq < 0) seq = -seq; 3088 Object event = mPendingEvents.get(seq); 3089 if (event != null) { 3090 mPendingEvents.remove(seq); 3091 } 3092 return event; 3093 } 3094 3095 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3096 if (ViewDebug.DEBUG_LATENCY) { 3097 mInputEventDeliverTimeNanos = System.nanoTime(); 3098 } 3099 3100 if (mInputEventConsistencyVerifier != null) { 3101 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3102 } 3103 3104 // If there is no view, then the event will not be handled. 3105 if (mView == null || !mAdded) { 3106 finishKeyEvent(event, sendDone, false); 3107 return; 3108 } 3109 3110 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3111 3112 // Perform predispatching before the IME. 3113 if (mView.dispatchKeyEventPreIme(event)) { 3114 finishKeyEvent(event, sendDone, true); 3115 return; 3116 } 3117 3118 // Dispatch to the IME before propagating down the view hierarchy. 3119 // The IME will eventually call back into handleFinishedEvent. 3120 if (mLastWasImTarget) { 3121 InputMethodManager imm = InputMethodManager.peekInstance(); 3122 if (imm != null) { 3123 int seq = enqueuePendingEvent(event, sendDone); 3124 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3125 + seq + " event=" + event); 3126 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3127 return; 3128 } 3129 } 3130 3131 // Not dispatching to IME, continue with post IME actions. 3132 deliverKeyEventPostIme(event, sendDone); 3133 } 3134 3135 private void handleFinishedEvent(int seq, boolean handled) { 3136 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3137 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3138 + " handled=" + handled + " event=" + event); 3139 if (event != null) { 3140 final boolean sendDone = seq >= 0; 3141 if (handled) { 3142 finishKeyEvent(event, sendDone, true); 3143 } else { 3144 deliverKeyEventPostIme(event, sendDone); 3145 } 3146 } 3147 } 3148 3149 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3150 if (ViewDebug.DEBUG_LATENCY) { 3151 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3152 } 3153 3154 // If the view went away, then the event will not be handled. 3155 if (mView == null || !mAdded) { 3156 finishKeyEvent(event, sendDone, false); 3157 return; 3158 } 3159 3160 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3161 if (checkForLeavingTouchModeAndConsume(event)) { 3162 finishKeyEvent(event, sendDone, true); 3163 return; 3164 } 3165 3166 // Make sure the fallback event policy sees all keys that will be delivered to the 3167 // view hierarchy. 3168 mFallbackEventHandler.preDispatchKeyEvent(event); 3169 3170 // Deliver the key to the view hierarchy. 3171 if (mView.dispatchKeyEvent(event)) { 3172 finishKeyEvent(event, sendDone, true); 3173 return; 3174 } 3175 3176 // If the Control modifier is held, try to interpret the key as a shortcut. 3177 if (event.getAction() == KeyEvent.ACTION_UP 3178 && event.isCtrlPressed() 3179 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3180 if (mView.dispatchKeyShortcutEvent(event)) { 3181 finishKeyEvent(event, sendDone, true); 3182 return; 3183 } 3184 } 3185 3186 // Apply the fallback event policy. 3187 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3188 finishKeyEvent(event, sendDone, true); 3189 return; 3190 } 3191 3192 // Handle automatic focus changes. 3193 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3194 int direction = 0; 3195 switch (event.getKeyCode()) { 3196 case KeyEvent.KEYCODE_DPAD_LEFT: 3197 if (event.hasNoModifiers()) { 3198 direction = View.FOCUS_LEFT; 3199 } 3200 break; 3201 case KeyEvent.KEYCODE_DPAD_RIGHT: 3202 if (event.hasNoModifiers()) { 3203 direction = View.FOCUS_RIGHT; 3204 } 3205 break; 3206 case KeyEvent.KEYCODE_DPAD_UP: 3207 if (event.hasNoModifiers()) { 3208 direction = View.FOCUS_UP; 3209 } 3210 break; 3211 case KeyEvent.KEYCODE_DPAD_DOWN: 3212 if (event.hasNoModifiers()) { 3213 direction = View.FOCUS_DOWN; 3214 } 3215 break; 3216 case KeyEvent.KEYCODE_TAB: 3217 if (event.hasNoModifiers()) { 3218 direction = View.FOCUS_FORWARD; 3219 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3220 direction = View.FOCUS_BACKWARD; 3221 } 3222 break; 3223 } 3224 3225 if (direction != 0) { 3226 View focused = mView != null ? mView.findFocus() : null; 3227 if (focused != null) { 3228 View v = focused.focusSearch(direction); 3229 if (v != null && v != focused) { 3230 // do the math the get the interesting rect 3231 // of previous focused into the coord system of 3232 // newly focused view 3233 focused.getFocusedRect(mTempRect); 3234 if (mView instanceof ViewGroup) { 3235 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3236 focused, mTempRect); 3237 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3238 v, mTempRect); 3239 } 3240 if (v.requestFocus(direction, mTempRect)) { 3241 playSoundEffect( 3242 SoundEffectConstants.getContantForFocusDirection(direction)); 3243 finishKeyEvent(event, sendDone, true); 3244 return; 3245 } 3246 } 3247 3248 // Give the focused view a last chance to handle the dpad key. 3249 if (mView.dispatchUnhandledMove(focused, direction)) { 3250 finishKeyEvent(event, sendDone, true); 3251 return; 3252 } 3253 } 3254 } 3255 } 3256 3257 // Key was unhandled. 3258 finishKeyEvent(event, sendDone, false); 3259 } 3260 3261 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3262 if (sendDone) { 3263 finishInputEvent(event, handled); 3264 } 3265 } 3266 3267 /* drag/drop */ 3268 void setLocalDragState(Object obj) { 3269 mLocalDragState = obj; 3270 } 3271 3272 private void handleDragEvent(DragEvent event) { 3273 // From the root, only drag start/end/location are dispatched. entered/exited 3274 // are determined and dispatched by the viewgroup hierarchy, who then report 3275 // that back here for ultimate reporting back to the framework. 3276 if (mView != null && mAdded) { 3277 final int what = event.mAction; 3278 3279 if (what == DragEvent.ACTION_DRAG_EXITED) { 3280 // A direct EXITED event means that the window manager knows we've just crossed 3281 // a window boundary, so the current drag target within this one must have 3282 // just been exited. Send it the usual notifications and then we're done 3283 // for now. 3284 mView.dispatchDragEvent(event); 3285 } else { 3286 // Cache the drag description when the operation starts, then fill it in 3287 // on subsequent calls as a convenience 3288 if (what == DragEvent.ACTION_DRAG_STARTED) { 3289 mCurrentDragView = null; // Start the current-recipient tracking 3290 mDragDescription = event.mClipDescription; 3291 } else { 3292 event.mClipDescription = mDragDescription; 3293 } 3294 3295 // For events with a [screen] location, translate into window coordinates 3296 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3297 mDragPoint.set(event.mX, event.mY); 3298 if (mTranslator != null) { 3299 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3300 } 3301 3302 if (mCurScrollY != 0) { 3303 mDragPoint.offset(0, mCurScrollY); 3304 } 3305 3306 event.mX = mDragPoint.x; 3307 event.mY = mDragPoint.y; 3308 } 3309 3310 // Remember who the current drag target is pre-dispatch 3311 final View prevDragView = mCurrentDragView; 3312 3313 // Now dispatch the drag/drop event 3314 boolean result = mView.dispatchDragEvent(event); 3315 3316 // If we changed apparent drag target, tell the OS about it 3317 if (prevDragView != mCurrentDragView) { 3318 try { 3319 if (prevDragView != null) { 3320 sWindowSession.dragRecipientExited(mWindow); 3321 } 3322 if (mCurrentDragView != null) { 3323 sWindowSession.dragRecipientEntered(mWindow); 3324 } 3325 } catch (RemoteException e) { 3326 Slog.e(TAG, "Unable to note drag target change"); 3327 } 3328 } 3329 3330 // Report the drop result when we're done 3331 if (what == DragEvent.ACTION_DROP) { 3332 mDragDescription = null; 3333 try { 3334 Log.i(TAG, "Reporting drop result: " + result); 3335 sWindowSession.reportDropResult(mWindow, result); 3336 } catch (RemoteException e) { 3337 Log.e(TAG, "Unable to report drop result"); 3338 } 3339 } 3340 3341 // When the drag operation ends, release any local state object 3342 // that may have been in use 3343 if (what == DragEvent.ACTION_DRAG_ENDED) { 3344 setLocalDragState(null); 3345 } 3346 } 3347 } 3348 event.recycle(); 3349 } 3350 3351 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3352 if (mView == null) return; 3353 if (mAttachInfo != null) { 3354 mAttachInfo.mSystemUiVisibility = visibility; 3355 } 3356 mView.dispatchSystemUiVisibilityChanged(visibility); 3357 } 3358 3359 public void getLastTouchPoint(Point outLocation) { 3360 outLocation.x = (int) mLastTouchPoint.x; 3361 outLocation.y = (int) mLastTouchPoint.y; 3362 } 3363 3364 public void setDragFocus(View newDragTarget) { 3365 if (mCurrentDragView != newDragTarget) { 3366 mCurrentDragView = newDragTarget; 3367 } 3368 } 3369 3370 private AudioManager getAudioManager() { 3371 if (mView == null) { 3372 throw new IllegalStateException("getAudioManager called when there is no mView"); 3373 } 3374 if (mAudioManager == null) { 3375 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3376 } 3377 return mAudioManager; 3378 } 3379 3380 public AccessibilityInteractionController getAccessibilityInteractionController() { 3381 if (mView == null) { 3382 throw new IllegalStateException("getAccessibilityInteractionController" 3383 + " called when there is no mView"); 3384 } 3385 if (mAccessibilityInteractionContrtoller == null) { 3386 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3387 } 3388 return mAccessibilityInteractionContrtoller; 3389 } 3390 3391 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3392 boolean insetsPending) throws RemoteException { 3393 3394 float appScale = mAttachInfo.mApplicationScale; 3395 boolean restore = false; 3396 if (params != null && mTranslator != null) { 3397 restore = true; 3398 params.backup(); 3399 mTranslator.translateWindowLayout(params); 3400 } 3401 if (params != null) { 3402 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3403 } 3404 mPendingConfiguration.seq = 0; 3405 //Log.d(TAG, ">>>>>> CALLING relayout"); 3406 int relayoutResult = sWindowSession.relayout( 3407 mWindow, params, 3408 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3409 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3410 viewVisibility, insetsPending, mWinFrame, 3411 mPendingContentInsets, mPendingVisibleInsets, 3412 mPendingConfiguration, mSurface); 3413 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3414 if (restore) { 3415 params.restore(); 3416 } 3417 3418 if (mTranslator != null) { 3419 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3420 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3421 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3422 } 3423 return relayoutResult; 3424 } 3425 3426 /** 3427 * {@inheritDoc} 3428 */ 3429 public void playSoundEffect(int effectId) { 3430 checkThread(); 3431 3432 try { 3433 final AudioManager audioManager = getAudioManager(); 3434 3435 switch (effectId) { 3436 case SoundEffectConstants.CLICK: 3437 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3438 return; 3439 case SoundEffectConstants.NAVIGATION_DOWN: 3440 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3441 return; 3442 case SoundEffectConstants.NAVIGATION_LEFT: 3443 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3444 return; 3445 case SoundEffectConstants.NAVIGATION_RIGHT: 3446 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3447 return; 3448 case SoundEffectConstants.NAVIGATION_UP: 3449 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3450 return; 3451 default: 3452 throw new IllegalArgumentException("unknown effect id " + effectId + 3453 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3454 } 3455 } catch (IllegalStateException e) { 3456 // Exception thrown by getAudioManager() when mView is null 3457 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3458 e.printStackTrace(); 3459 } 3460 } 3461 3462 /** 3463 * {@inheritDoc} 3464 */ 3465 public boolean performHapticFeedback(int effectId, boolean always) { 3466 try { 3467 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3468 } catch (RemoteException e) { 3469 return false; 3470 } 3471 } 3472 3473 /** 3474 * {@inheritDoc} 3475 */ 3476 public View focusSearch(View focused, int direction) { 3477 checkThread(); 3478 if (!(mView instanceof ViewGroup)) { 3479 return null; 3480 } 3481 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3482 } 3483 3484 public void debug() { 3485 mView.debug(); 3486 } 3487 3488 public void die(boolean immediate) { 3489 if (immediate) { 3490 doDie(); 3491 } else { 3492 sendEmptyMessage(DIE); 3493 } 3494 } 3495 3496 void doDie() { 3497 checkThread(); 3498 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3499 synchronized (this) { 3500 if (mAdded && !mFirst) { 3501 destroyHardwareRenderer(); 3502 3503 int viewVisibility = mView.getVisibility(); 3504 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3505 if (mWindowAttributesChanged || viewVisibilityChanged) { 3506 // If layout params have been changed, first give them 3507 // to the window manager to make sure it has the correct 3508 // animation info. 3509 try { 3510 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3511 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3512 sWindowSession.finishDrawing(mWindow); 3513 } 3514 } catch (RemoteException e) { 3515 } 3516 } 3517 3518 mSurface.release(); 3519 } 3520 if (mAdded) { 3521 mAdded = false; 3522 dispatchDetachedFromWindow(); 3523 } 3524 } 3525 } 3526 3527 public void requestUpdateConfiguration(Configuration config) { 3528 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3529 sendMessage(msg); 3530 } 3531 3532 private void destroyHardwareRenderer() { 3533 if (mAttachInfo.mHardwareRenderer != null) { 3534 mAttachInfo.mHardwareRenderer.destroy(true); 3535 mAttachInfo.mHardwareRenderer = null; 3536 mAttachInfo.mHardwareAccelerated = false; 3537 } 3538 } 3539 3540 public void dispatchFinishedEvent(int seq, boolean handled) { 3541 Message msg = obtainMessage(FINISHED_EVENT); 3542 msg.arg1 = seq; 3543 msg.arg2 = handled ? 1 : 0; 3544 sendMessage(msg); 3545 } 3546 3547 public void dispatchResized(int w, int h, Rect coveredInsets, 3548 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3549 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3550 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3551 + " visibleInsets=" + visibleInsets.toShortString() 3552 + " reportDraw=" + reportDraw); 3553 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3554 if (mTranslator != null) { 3555 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3556 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3557 w *= mTranslator.applicationInvertedScale; 3558 h *= mTranslator.applicationInvertedScale; 3559 } 3560 msg.arg1 = w; 3561 msg.arg2 = h; 3562 ResizedInfo ri = new ResizedInfo(); 3563 ri.coveredInsets = new Rect(coveredInsets); 3564 ri.visibleInsets = new Rect(visibleInsets); 3565 ri.newConfig = newConfig; 3566 msg.obj = ri; 3567 sendMessage(msg); 3568 } 3569 3570 private long mInputEventReceiveTimeNanos; 3571 private long mInputEventDeliverTimeNanos; 3572 private long mInputEventDeliverPostImeTimeNanos; 3573 private InputQueue.FinishedCallback mFinishedCallback; 3574 3575 private final InputHandler mInputHandler = new InputHandler() { 3576 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3577 startInputEvent(finishedCallback); 3578 dispatchKey(event, true); 3579 } 3580 3581 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3582 startInputEvent(finishedCallback); 3583 dispatchMotion(event, true); 3584 } 3585 }; 3586 3587 public void dispatchKey(KeyEvent event) { 3588 dispatchKey(event, false); 3589 } 3590 3591 private void dispatchKey(KeyEvent event, boolean sendDone) { 3592 //noinspection ConstantConditions 3593 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3594 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3595 if (DBG) Log.d("keydisp", "==================================================="); 3596 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3597 3598 debug(); 3599 3600 if (DBG) Log.d("keydisp", "==================================================="); 3601 } 3602 } 3603 3604 Message msg = obtainMessage(DISPATCH_KEY); 3605 msg.obj = event; 3606 msg.arg1 = sendDone ? 1 : 0; 3607 3608 if (LOCAL_LOGV) Log.v( 3609 TAG, "sending key " + event + " to " + mView); 3610 3611 sendMessageAtTime(msg, event.getEventTime()); 3612 } 3613 3614 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3615 int source = event.getSource(); 3616 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3617 dispatchPointer(event, sendDone); 3618 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3619 dispatchTrackball(event, sendDone); 3620 } else { 3621 dispatchGenericMotion(event, sendDone); 3622 } 3623 } 3624 3625 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3626 Message msg = obtainMessage(DISPATCH_POINTER); 3627 msg.obj = event; 3628 msg.arg1 = sendDone ? 1 : 0; 3629 sendMessageAtTime(msg, event.getEventTime()); 3630 } 3631 3632 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3633 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3634 msg.obj = event; 3635 msg.arg1 = sendDone ? 1 : 0; 3636 sendMessageAtTime(msg, event.getEventTime()); 3637 } 3638 3639 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3640 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3641 msg.obj = event; 3642 msg.arg1 = sendDone ? 1 : 0; 3643 sendMessageAtTime(msg, event.getEventTime()); 3644 } 3645 3646 public void dispatchAppVisibility(boolean visible) { 3647 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3648 msg.arg1 = visible ? 1 : 0; 3649 sendMessage(msg); 3650 } 3651 3652 public void dispatchGetNewSurface() { 3653 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3654 sendMessage(msg); 3655 } 3656 3657 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3658 Message msg = Message.obtain(); 3659 msg.what = WINDOW_FOCUS_CHANGED; 3660 msg.arg1 = hasFocus ? 1 : 0; 3661 msg.arg2 = inTouchMode ? 1 : 0; 3662 sendMessage(msg); 3663 } 3664 3665 public void dispatchCloseSystemDialogs(String reason) { 3666 Message msg = Message.obtain(); 3667 msg.what = CLOSE_SYSTEM_DIALOGS; 3668 msg.obj = reason; 3669 sendMessage(msg); 3670 } 3671 3672 public void dispatchDragEvent(DragEvent event) { 3673 final int what; 3674 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3675 what = DISPATCH_DRAG_LOCATION_EVENT; 3676 removeMessages(what); 3677 } else { 3678 what = DISPATCH_DRAG_EVENT; 3679 } 3680 Message msg = obtainMessage(what, event); 3681 sendMessage(msg); 3682 } 3683 3684 public void dispatchSystemUiVisibilityChanged(int visibility) { 3685 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3686 } 3687 3688 /** 3689 * The window is getting focus so if there is anything focused/selected 3690 * send an {@link AccessibilityEvent} to announce that. 3691 */ 3692 private void sendAccessibilityEvents() { 3693 if (!mAccessibilityManager.isEnabled()) { 3694 return; 3695 } 3696 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3697 View focusedView = mView.findFocus(); 3698 if (focusedView != null && focusedView != mView) { 3699 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3700 } 3701 } 3702 3703 /** 3704 * Post a callback to send a 3705 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3706 * This event is send at most once every 3707 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3708 */ 3709 private void postSendWindowContentChangedCallback() { 3710 if (mSendWindowContentChangedAccessibilityEvent == null) { 3711 mSendWindowContentChangedAccessibilityEvent = 3712 new SendWindowContentChangedAccessibilityEvent(); 3713 } 3714 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3715 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3716 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3717 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3718 } 3719 } 3720 3721 /** 3722 * Remove a posted callback to send a 3723 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3724 */ 3725 private void removeSendWindowContentChangedCallback() { 3726 if (mSendWindowContentChangedAccessibilityEvent != null) { 3727 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3728 } 3729 } 3730 3731 public boolean showContextMenuForChild(View originalView) { 3732 return false; 3733 } 3734 3735 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3736 return null; 3737 } 3738 3739 public void createContextMenu(ContextMenu menu) { 3740 } 3741 3742 public void childDrawableStateChanged(View child) { 3743 } 3744 3745 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3746 if (mView == null) { 3747 return false; 3748 } 3749 mAccessibilityManager.sendAccessibilityEvent(event); 3750 return true; 3751 } 3752 3753 void checkThread() { 3754 if (mThread != Thread.currentThread()) { 3755 throw new CalledFromWrongThreadException( 3756 "Only the original thread that created a view hierarchy can touch its views."); 3757 } 3758 } 3759 3760 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3761 // ViewAncestor never intercepts touch event, so this can be a no-op 3762 } 3763 3764 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3765 boolean immediate) { 3766 return scrollToRectOrFocus(rectangle, immediate); 3767 } 3768 3769 class TakenSurfaceHolder extends BaseSurfaceHolder { 3770 @Override 3771 public boolean onAllowLockCanvas() { 3772 return mDrawingAllowed; 3773 } 3774 3775 @Override 3776 public void onRelayoutContainer() { 3777 // Not currently interesting -- from changing between fixed and layout size. 3778 } 3779 3780 public void setFormat(int format) { 3781 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3782 } 3783 3784 public void setType(int type) { 3785 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3786 } 3787 3788 @Override 3789 public void onUpdateSurface() { 3790 // We take care of format and type changes on our own. 3791 throw new IllegalStateException("Shouldn't be here"); 3792 } 3793 3794 public boolean isCreating() { 3795 return mIsCreating; 3796 } 3797 3798 @Override 3799 public void setFixedSize(int width, int height) { 3800 throw new UnsupportedOperationException( 3801 "Currently only support sizing from layout"); 3802 } 3803 3804 public void setKeepScreenOn(boolean screenOn) { 3805 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3806 } 3807 } 3808 3809 static class InputMethodCallback extends IInputMethodCallback.Stub { 3810 private WeakReference<ViewRootImpl> mViewAncestor; 3811 3812 public InputMethodCallback(ViewRootImpl viewAncestor) { 3813 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3814 } 3815 3816 public void finishedEvent(int seq, boolean handled) { 3817 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3818 if (viewAncestor != null) { 3819 viewAncestor.dispatchFinishedEvent(seq, handled); 3820 } 3821 } 3822 3823 public void sessionCreated(IInputMethodSession session) { 3824 // Stub -- not for use in the client. 3825 } 3826 } 3827 3828 static class W extends IWindow.Stub { 3829 private final WeakReference<ViewRootImpl> mViewAncestor; 3830 3831 W(ViewRootImpl viewAncestor) { 3832 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3833 } 3834 3835 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3836 boolean reportDraw, Configuration newConfig) { 3837 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3838 if (viewAncestor != null) { 3839 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3840 newConfig); 3841 } 3842 } 3843 3844 public void dispatchAppVisibility(boolean visible) { 3845 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3846 if (viewAncestor != null) { 3847 viewAncestor.dispatchAppVisibility(visible); 3848 } 3849 } 3850 3851 public void dispatchGetNewSurface() { 3852 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3853 if (viewAncestor != null) { 3854 viewAncestor.dispatchGetNewSurface(); 3855 } 3856 } 3857 3858 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3859 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3860 if (viewAncestor != null) { 3861 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3862 } 3863 } 3864 3865 private static int checkCallingPermission(String permission) { 3866 try { 3867 return ActivityManagerNative.getDefault().checkPermission( 3868 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3869 } catch (RemoteException e) { 3870 return PackageManager.PERMISSION_DENIED; 3871 } 3872 } 3873 3874 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3875 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3876 if (viewAncestor != null) { 3877 final View view = viewAncestor.mView; 3878 if (view != null) { 3879 if (checkCallingPermission(Manifest.permission.DUMP) != 3880 PackageManager.PERMISSION_GRANTED) { 3881 throw new SecurityException("Insufficient permissions to invoke" 3882 + " executeCommand() from pid=" + Binder.getCallingPid() 3883 + ", uid=" + Binder.getCallingUid()); 3884 } 3885 3886 OutputStream clientStream = null; 3887 try { 3888 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3889 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3890 } catch (IOException e) { 3891 e.printStackTrace(); 3892 } finally { 3893 if (clientStream != null) { 3894 try { 3895 clientStream.close(); 3896 } catch (IOException e) { 3897 e.printStackTrace(); 3898 } 3899 } 3900 } 3901 } 3902 } 3903 } 3904 3905 public void closeSystemDialogs(String reason) { 3906 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3907 if (viewAncestor != null) { 3908 viewAncestor.dispatchCloseSystemDialogs(reason); 3909 } 3910 } 3911 3912 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 3913 boolean sync) { 3914 if (sync) { 3915 try { 3916 sWindowSession.wallpaperOffsetsComplete(asBinder()); 3917 } catch (RemoteException e) { 3918 } 3919 } 3920 } 3921 3922 public void dispatchWallpaperCommand(String action, int x, int y, 3923 int z, Bundle extras, boolean sync) { 3924 if (sync) { 3925 try { 3926 sWindowSession.wallpaperCommandComplete(asBinder(), null); 3927 } catch (RemoteException e) { 3928 } 3929 } 3930 } 3931 3932 /* Drag/drop */ 3933 public void dispatchDragEvent(DragEvent event) { 3934 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3935 if (viewAncestor != null) { 3936 viewAncestor.dispatchDragEvent(event); 3937 } 3938 } 3939 3940 public void dispatchSystemUiVisibilityChanged(int visibility) { 3941 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3942 if (viewAncestor != null) { 3943 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 3944 } 3945 } 3946 } 3947 3948 /** 3949 * Maintains state information for a single trackball axis, generating 3950 * discrete (DPAD) movements based on raw trackball motion. 3951 */ 3952 static final class TrackballAxis { 3953 /** 3954 * The maximum amount of acceleration we will apply. 3955 */ 3956 static final float MAX_ACCELERATION = 20; 3957 3958 /** 3959 * The maximum amount of time (in milliseconds) between events in order 3960 * for us to consider the user to be doing fast trackball movements, 3961 * and thus apply an acceleration. 3962 */ 3963 static final long FAST_MOVE_TIME = 150; 3964 3965 /** 3966 * Scaling factor to the time (in milliseconds) between events to how 3967 * much to multiple/divide the current acceleration. When movement 3968 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 3969 * FAST_MOVE_TIME it divides it. 3970 */ 3971 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 3972 3973 float position; 3974 float absPosition; 3975 float acceleration = 1; 3976 long lastMoveTime = 0; 3977 int step; 3978 int dir; 3979 int nonAccelMovement; 3980 3981 void reset(int _step) { 3982 position = 0; 3983 acceleration = 1; 3984 lastMoveTime = 0; 3985 step = _step; 3986 dir = 0; 3987 } 3988 3989 /** 3990 * Add trackball movement into the state. If the direction of movement 3991 * has been reversed, the state is reset before adding the 3992 * movement (so that you don't have to compensate for any previously 3993 * collected movement before see the result of the movement in the 3994 * new direction). 3995 * 3996 * @return Returns the absolute value of the amount of movement 3997 * collected so far. 3998 */ 3999 float collect(float off, long time, String axis) { 4000 long normTime; 4001 if (off > 0) { 4002 normTime = (long)(off * FAST_MOVE_TIME); 4003 if (dir < 0) { 4004 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4005 position = 0; 4006 step = 0; 4007 acceleration = 1; 4008 lastMoveTime = 0; 4009 } 4010 dir = 1; 4011 } else if (off < 0) { 4012 normTime = (long)((-off) * FAST_MOVE_TIME); 4013 if (dir > 0) { 4014 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4015 position = 0; 4016 step = 0; 4017 acceleration = 1; 4018 lastMoveTime = 0; 4019 } 4020 dir = -1; 4021 } else { 4022 normTime = 0; 4023 } 4024 4025 // The number of milliseconds between each movement that is 4026 // considered "normal" and will not result in any acceleration 4027 // or deceleration, scaled by the offset we have here. 4028 if (normTime > 0) { 4029 long delta = time - lastMoveTime; 4030 lastMoveTime = time; 4031 float acc = acceleration; 4032 if (delta < normTime) { 4033 // The user is scrolling rapidly, so increase acceleration. 4034 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4035 if (scale > 1) acc *= scale; 4036 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4037 + off + " normTime=" + normTime + " delta=" + delta 4038 + " scale=" + scale + " acc=" + acc); 4039 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4040 } else { 4041 // The user is scrolling slowly, so decrease acceleration. 4042 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4043 if (scale > 1) acc /= scale; 4044 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4045 + off + " normTime=" + normTime + " delta=" + delta 4046 + " scale=" + scale + " acc=" + acc); 4047 acceleration = acc > 1 ? acc : 1; 4048 } 4049 } 4050 position += off; 4051 return (absPosition = Math.abs(position)); 4052 } 4053 4054 /** 4055 * Generate the number of discrete movement events appropriate for 4056 * the currently collected trackball movement. 4057 * 4058 * @param precision The minimum movement required to generate the 4059 * first discrete movement. 4060 * 4061 * @return Returns the number of discrete movements, either positive 4062 * or negative, or 0 if there is not enough trackball movement yet 4063 * for a discrete movement. 4064 */ 4065 int generate(float precision) { 4066 int movement = 0; 4067 nonAccelMovement = 0; 4068 do { 4069 final int dir = position >= 0 ? 1 : -1; 4070 switch (step) { 4071 // If we are going to execute the first step, then we want 4072 // to do this as soon as possible instead of waiting for 4073 // a full movement, in order to make things look responsive. 4074 case 0: 4075 if (absPosition < precision) { 4076 return movement; 4077 } 4078 movement += dir; 4079 nonAccelMovement += dir; 4080 step = 1; 4081 break; 4082 // If we have generated the first movement, then we need 4083 // to wait for the second complete trackball motion before 4084 // generating the second discrete movement. 4085 case 1: 4086 if (absPosition < 2) { 4087 return movement; 4088 } 4089 movement += dir; 4090 nonAccelMovement += dir; 4091 position += dir > 0 ? -2 : 2; 4092 absPosition = Math.abs(position); 4093 step = 2; 4094 break; 4095 // After the first two, we generate discrete movements 4096 // consistently with the trackball, applying an acceleration 4097 // if the trackball is moving quickly. This is a simple 4098 // acceleration on top of what we already compute based 4099 // on how quickly the wheel is being turned, to apply 4100 // a longer increasing acceleration to continuous movement 4101 // in one direction. 4102 default: 4103 if (absPosition < 1) { 4104 return movement; 4105 } 4106 movement += dir; 4107 position += dir >= 0 ? -1 : 1; 4108 absPosition = Math.abs(position); 4109 float acc = acceleration; 4110 acc *= 1.1f; 4111 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4112 break; 4113 } 4114 } while (true); 4115 } 4116 } 4117 4118 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4119 public CalledFromWrongThreadException(String msg) { 4120 super(msg); 4121 } 4122 } 4123 4124 private SurfaceHolder mHolder = new SurfaceHolder() { 4125 // we only need a SurfaceHolder for opengl. it would be nice 4126 // to implement everything else though, especially the callback 4127 // support (opengl doesn't make use of it right now, but eventually 4128 // will). 4129 public Surface getSurface() { 4130 return mSurface; 4131 } 4132 4133 public boolean isCreating() { 4134 return false; 4135 } 4136 4137 public void addCallback(Callback callback) { 4138 } 4139 4140 public void removeCallback(Callback callback) { 4141 } 4142 4143 public void setFixedSize(int width, int height) { 4144 } 4145 4146 public void setSizeFromLayout() { 4147 } 4148 4149 public void setFormat(int format) { 4150 } 4151 4152 public void setType(int type) { 4153 } 4154 4155 public void setKeepScreenOn(boolean screenOn) { 4156 } 4157 4158 public Canvas lockCanvas() { 4159 return null; 4160 } 4161 4162 public Canvas lockCanvas(Rect dirty) { 4163 return null; 4164 } 4165 4166 public void unlockCanvasAndPost(Canvas canvas) { 4167 } 4168 public Rect getSurfaceFrame() { 4169 return null; 4170 } 4171 }; 4172 4173 static RunQueue getRunQueue() { 4174 RunQueue rq = sRunQueues.get(); 4175 if (rq != null) { 4176 return rq; 4177 } 4178 rq = new RunQueue(); 4179 sRunQueues.set(rq); 4180 return rq; 4181 } 4182 4183 /** 4184 * @hide 4185 */ 4186 static final class RunQueue { 4187 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4188 4189 void post(Runnable action) { 4190 postDelayed(action, 0); 4191 } 4192 4193 void postDelayed(Runnable action, long delayMillis) { 4194 HandlerAction handlerAction = new HandlerAction(); 4195 handlerAction.action = action; 4196 handlerAction.delay = delayMillis; 4197 4198 synchronized (mActions) { 4199 mActions.add(handlerAction); 4200 } 4201 } 4202 4203 void removeCallbacks(Runnable action) { 4204 final HandlerAction handlerAction = new HandlerAction(); 4205 handlerAction.action = action; 4206 4207 synchronized (mActions) { 4208 final ArrayList<HandlerAction> actions = mActions; 4209 4210 while (actions.remove(handlerAction)) { 4211 // Keep going 4212 } 4213 } 4214 } 4215 4216 void executeActions(Handler handler) { 4217 synchronized (mActions) { 4218 final ArrayList<HandlerAction> actions = mActions; 4219 final int count = actions.size(); 4220 4221 for (int i = 0; i < count; i++) { 4222 final HandlerAction handlerAction = actions.get(i); 4223 handler.postDelayed(handlerAction.action, handlerAction.delay); 4224 } 4225 4226 actions.clear(); 4227 } 4228 } 4229 4230 private static class HandlerAction { 4231 Runnable action; 4232 long delay; 4233 4234 @Override 4235 public boolean equals(Object o) { 4236 if (this == o) return true; 4237 if (o == null || getClass() != o.getClass()) return false; 4238 4239 HandlerAction that = (HandlerAction) o; 4240 return !(action != null ? !action.equals(that.action) : that.action != null); 4241 4242 } 4243 4244 @Override 4245 public int hashCode() { 4246 int result = action != null ? action.hashCode() : 0; 4247 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4248 return result; 4249 } 4250 } 4251 } 4252 4253 /** 4254 * Class for managing the accessibility interaction connection 4255 * based on the global accessibility state. 4256 */ 4257 final class AccessibilityInteractionConnectionManager 4258 implements AccessibilityStateChangeListener { 4259 public void onAccessibilityStateChanged(boolean enabled) { 4260 if (enabled) { 4261 ensureConnection(); 4262 } else { 4263 ensureNoConnection(); 4264 } 4265 } 4266 4267 public void ensureConnection() { 4268 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4269 if (!registered) { 4270 mAttachInfo.mAccessibilityWindowId = 4271 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4272 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4273 } 4274 } 4275 4276 public void ensureNoConnection() { 4277 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4278 if (registered) { 4279 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4280 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4281 } 4282 } 4283 } 4284 4285 /** 4286 * This class is an interface this ViewAncestor provides to the 4287 * AccessibilityManagerService to the latter can interact with 4288 * the view hierarchy in this ViewAncestor. 4289 */ 4290 final class AccessibilityInteractionConnection 4291 extends IAccessibilityInteractionConnection.Stub { 4292 private final WeakReference<ViewRootImpl> mViewAncestor; 4293 4294 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4295 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4296 } 4297 4298 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4299 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4300 if (mViewAncestor.get() != null) { 4301 getAccessibilityInteractionController() 4302 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4303 interactionId, callback); 4304 } 4305 } 4306 4307 public void performAccessibilityAction(int accessibilityId, int action, 4308 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4309 if (mViewAncestor.get() != null) { 4310 getAccessibilityInteractionController() 4311 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4312 callback); 4313 } 4314 } 4315 4316 public void findAccessibilityNodeInfoByViewId(int viewId, 4317 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4318 if (mViewAncestor.get() != null) { 4319 getAccessibilityInteractionController() 4320 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback); 4321 } 4322 } 4323 4324 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4325 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4326 if (mViewAncestor.get() != null) { 4327 getAccessibilityInteractionController() 4328 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4329 interactionId, callback); 4330 } 4331 } 4332 } 4333 4334 /** 4335 * Class for managing accessibility interactions initiated from the system 4336 * and targeting the view hierarchy. A *ClientThread method is to be 4337 * called from the interaction connection this ViewAncestor gives the 4338 * system to talk to it and a corresponding *UiThread method that is executed 4339 * on the UI thread. 4340 */ 4341 final class AccessibilityInteractionController { 4342 private static final int POOL_SIZE = 5; 4343 4344 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4345 new FindByAccessibilitytIdPredicate(); 4346 4347 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4348 new ArrayList<AccessibilityNodeInfo>(); 4349 4350 // Reusable poolable arguments for interacting with the view hierarchy 4351 // to fit more arguments than Message and to avoid sharing objects between 4352 // two messages since several threads can send messages concurrently. 4353 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4354 new PoolableManager<SomeArgs>() { 4355 public SomeArgs newInstance() { 4356 return new SomeArgs(); 4357 } 4358 4359 public void onAcquired(SomeArgs info) { 4360 /* do nothing */ 4361 } 4362 4363 public void onReleased(SomeArgs info) { 4364 info.clear(); 4365 } 4366 }, POOL_SIZE) 4367 ); 4368 4369 public class SomeArgs implements Poolable<SomeArgs> { 4370 private SomeArgs mNext; 4371 private boolean mIsPooled; 4372 4373 public Object arg1; 4374 public Object arg2; 4375 public int argi1; 4376 public int argi2; 4377 public int argi3; 4378 4379 public SomeArgs getNextPoolable() { 4380 return mNext; 4381 } 4382 4383 public boolean isPooled() { 4384 return mIsPooled; 4385 } 4386 4387 public void setNextPoolable(SomeArgs args) { 4388 mNext = args; 4389 } 4390 4391 public void setPooled(boolean isPooled) { 4392 mIsPooled = isPooled; 4393 } 4394 4395 private void clear() { 4396 arg1 = null; 4397 arg2 = null; 4398 argi1 = 0; 4399 argi2 = 0; 4400 argi3 = 0; 4401 } 4402 } 4403 4404 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4405 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4406 Message message = Message.obtain(); 4407 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4408 message.arg1 = accessibilityId; 4409 message.arg2 = interactionId; 4410 message.obj = callback; 4411 sendMessage(message); 4412 } 4413 4414 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4415 final int accessibilityId = message.arg1; 4416 final int interactionId = message.arg2; 4417 final IAccessibilityInteractionConnectionCallback callback = 4418 (IAccessibilityInteractionConnectionCallback) message.obj; 4419 4420 AccessibilityNodeInfo info = null; 4421 try { 4422 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4423 predicate.init(accessibilityId); 4424 View root = ViewRootImpl.this.mView; 4425 View target = root.findViewByPredicate(predicate); 4426 if (target != null && target.isShown()) { 4427 info = target.createAccessibilityNodeInfo(); 4428 } 4429 } finally { 4430 try { 4431 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4432 } catch (RemoteException re) { 4433 /* ignore - the other side will time out */ 4434 } 4435 } 4436 } 4437 4438 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4439 IAccessibilityInteractionConnectionCallback callback) { 4440 Message message = Message.obtain(); 4441 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4442 message.arg1 = viewId; 4443 message.arg2 = interactionId; 4444 message.obj = callback; 4445 sendMessage(message); 4446 } 4447 4448 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4449 final int viewId = message.arg1; 4450 final int interactionId = message.arg2; 4451 final IAccessibilityInteractionConnectionCallback callback = 4452 (IAccessibilityInteractionConnectionCallback) message.obj; 4453 4454 AccessibilityNodeInfo info = null; 4455 try { 4456 View root = ViewRootImpl.this.mView; 4457 View target = root.findViewById(viewId); 4458 if (target != null && target.isShown()) { 4459 info = target.createAccessibilityNodeInfo(); 4460 } 4461 } finally { 4462 try { 4463 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4464 } catch (RemoteException re) { 4465 /* ignore - the other side will time out */ 4466 } 4467 } 4468 } 4469 4470 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4471 int accessibilityViewId, int interactionId, 4472 IAccessibilityInteractionConnectionCallback callback) { 4473 Message message = Message.obtain(); 4474 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4475 SomeArgs args = mPool.acquire(); 4476 args.arg1 = text; 4477 args.argi1 = accessibilityViewId; 4478 args.argi2 = interactionId; 4479 args.arg2 = callback; 4480 message.obj = args; 4481 sendMessage(message); 4482 } 4483 4484 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4485 SomeArgs args = (SomeArgs) message.obj; 4486 final String text = (String) args.arg1; 4487 final int accessibilityViewId = args.argi1; 4488 final int interactionId = args.argi2; 4489 final IAccessibilityInteractionConnectionCallback callback = 4490 (IAccessibilityInteractionConnectionCallback) args.arg2; 4491 mPool.release(args); 4492 4493 List<AccessibilityNodeInfo> infos = null; 4494 try { 4495 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4496 foundViews.clear(); 4497 4498 View root; 4499 if (accessibilityViewId != View.NO_ID) { 4500 root = findViewByAccessibilityId(accessibilityViewId); 4501 } else { 4502 root = ViewRootImpl.this.mView; 4503 } 4504 4505 if (root == null || !root.isShown()) { 4506 return; 4507 } 4508 4509 root.findViewsWithText(foundViews, text); 4510 if (foundViews.isEmpty()) { 4511 return; 4512 } 4513 4514 infos = mTempAccessibilityNodeInfoList; 4515 infos.clear(); 4516 4517 final int viewCount = foundViews.size(); 4518 for (int i = 0; i < viewCount; i++) { 4519 View foundView = foundViews.get(i); 4520 if (foundView.isShown()) { 4521 infos.add(foundView.createAccessibilityNodeInfo()); 4522 } 4523 } 4524 } finally { 4525 try { 4526 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4527 } catch (RemoteException re) { 4528 /* ignore - the other side will time out */ 4529 } 4530 } 4531 } 4532 4533 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4534 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4535 Message message = Message.obtain(); 4536 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4537 SomeArgs args = mPool.acquire(); 4538 args.argi1 = accessibilityId; 4539 args.argi2 = action; 4540 args.argi3 = interactionId; 4541 args.arg1 = callback; 4542 message.obj = args; 4543 sendMessage(message); 4544 } 4545 4546 public void perfromAccessibilityActionUiThread(Message message) { 4547 SomeArgs args = (SomeArgs) message.obj; 4548 final int accessibilityId = args.argi1; 4549 final int action = args.argi2; 4550 final int interactionId = args.argi3; 4551 final IAccessibilityInteractionConnectionCallback callback = 4552 (IAccessibilityInteractionConnectionCallback) args.arg1; 4553 mPool.release(args); 4554 4555 boolean succeeded = false; 4556 try { 4557 switch (action) { 4558 case AccessibilityNodeInfo.ACTION_FOCUS: { 4559 succeeded = performActionFocus(accessibilityId); 4560 } break; 4561 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4562 succeeded = performActionClearFocus(accessibilityId); 4563 } break; 4564 case AccessibilityNodeInfo.ACTION_SELECT: { 4565 succeeded = performActionSelect(accessibilityId); 4566 } break; 4567 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4568 succeeded = performActionClearSelection(accessibilityId); 4569 } break; 4570 } 4571 } finally { 4572 try { 4573 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4574 } catch (RemoteException re) { 4575 /* ignore - the other side will time out */ 4576 } 4577 } 4578 } 4579 4580 private boolean performActionFocus(int accessibilityId) { 4581 View target = findViewByAccessibilityId(accessibilityId); 4582 if (target == null) { 4583 return false; 4584 } 4585 // Get out of touch mode since accessibility wants to move focus around. 4586 ensureTouchMode(false); 4587 return target.requestFocus(); 4588 } 4589 4590 private boolean performActionClearFocus(int accessibilityId) { 4591 View target = findViewByAccessibilityId(accessibilityId); 4592 if (target == null) { 4593 return false; 4594 } 4595 if (!target.isFocused()) { 4596 return false; 4597 } 4598 target.clearFocus(); 4599 return !target.isFocused(); 4600 } 4601 4602 private boolean performActionSelect(int accessibilityId) { 4603 View target = findViewByAccessibilityId(accessibilityId); 4604 if (target == null) { 4605 return false; 4606 } 4607 if (target.isSelected()) { 4608 return false; 4609 } 4610 target.setSelected(true); 4611 return target.isSelected(); 4612 } 4613 4614 private boolean performActionClearSelection(int accessibilityId) { 4615 View target = findViewByAccessibilityId(accessibilityId); 4616 if (target == null) { 4617 return false; 4618 } 4619 if (!target.isSelected()) { 4620 return false; 4621 } 4622 target.setSelected(false); 4623 return !target.isSelected(); 4624 } 4625 4626 private View findViewByAccessibilityId(int accessibilityId) { 4627 View root = ViewRootImpl.this.mView; 4628 if (root == null) { 4629 return null; 4630 } 4631 mFindByAccessibilityIdPredicate.init(accessibilityId); 4632 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4633 return (foundView != null && foundView.isShown()) ? foundView : null; 4634 } 4635 4636 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4637 public int mSerchedId; 4638 4639 public void init(int searchedId) { 4640 mSerchedId = searchedId; 4641 } 4642 4643 public boolean apply(View view) { 4644 return (view.getAccessibilityViewId() == mSerchedId); 4645 } 4646 } 4647 } 4648 4649 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4650 public volatile boolean mIsPending; 4651 4652 public void run() { 4653 if (mView != null) { 4654 // Check again for accessibility state since this is executed delayed. 4655 AccessibilityManager accessibilityManager = 4656 AccessibilityManager.getInstance(mView.mContext); 4657 if (accessibilityManager.isEnabled()) { 4658 // Send the event directly since we do not want to append the 4659 // source text because this is the text for the entire window 4660 // and we just want to notify that the content has changed. 4661 AccessibilityEvent event = AccessibilityEvent.obtain( 4662 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4663 mView.onInitializeAccessibilityEvent(event); 4664 accessibilityManager.sendAccessibilityEvent(event); 4665 } 4666 mIsPending = false; 4667 } 4668 } 4669 } 4670} 4671