ViewRootImpl.java revision cc4f7db698f88b633a286d8ab1105b28a474cd09
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.policy.PolicyManager; 77import com.android.internal.util.Predicate; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean WATCH_POINTER = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 long mLastTrackballTime = 0; 143 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 144 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 145 146 int mLastJoystickXDirection; 147 int mLastJoystickYDirection; 148 int mLastJoystickXKeyCode; 149 int mLastJoystickYKeyCode; 150 151 final int[] mTmpLocation = new int[2]; 152 153 final TypedValue mTmpValue = new TypedValue(); 154 155 final InputMethodCallback mInputMethodCallback; 156 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 157 int mPendingEventSeq = 0; 158 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 View mView; 168 View mFocusedView; 169 View mRealFocusedView; // this is not set to null in touch mode 170 int mViewVisibility; 171 boolean mAppVisible = true; 172 173 // Set to true if the owner of this window is in the stopped state, 174 // so the window should no longer be active. 175 boolean mStopped = false; 176 177 boolean mLastInCompatMode = false; 178 179 SurfaceHolder.Callback2 mSurfaceHolderCallback; 180 BaseSurfaceHolder mSurfaceHolder; 181 boolean mIsCreating; 182 boolean mDrawingAllowed; 183 184 final Region mTransparentRegion; 185 final Region mPreviousTransparentRegion; 186 187 int mWidth; 188 int mHeight; 189 Rect mDirty; 190 final Rect mCurrentDirty = new Rect(); 191 final Rect mPreviousDirty = new Rect(); 192 boolean mIsAnimating; 193 194 CompatibilityInfo.Translator mTranslator; 195 196 final View.AttachInfo mAttachInfo; 197 InputChannel mInputChannel; 198 InputQueue.Callback mInputQueueCallback; 199 InputQueue mInputQueue; 200 FallbackEventHandler mFallbackEventHandler; 201 202 final Rect mTempRect; // used in the transaction to not thrash the heap. 203 final Rect mVisRect; // used to retrieve visible rect of focused view. 204 205 boolean mTraversalScheduled; 206 long mLastTraversalFinishedTimeNanos; 207 long mLastDrawDurationNanos; 208 boolean mWillDrawSoon; 209 boolean mLayoutRequested; 210 boolean mFirst; 211 boolean mReportNextDraw; 212 boolean mFullRedrawNeeded; 213 boolean mNewSurfaceNeeded; 214 boolean mHasHadWindowFocus; 215 boolean mLastWasImTarget; 216 217 boolean mWindowAttributesChanged = false; 218 219 // These can be accessed by any thread, must be protected with a lock. 220 // Surface can never be reassigned or cleared (use Surface.clear()). 221 private final Surface mSurface = new Surface(); 222 223 boolean mAdded; 224 boolean mAddedTouchMode; 225 226 CompatibilityInfoHolder mCompatibilityInfo; 227 228 /*package*/ int mAddNesting; 229 230 // These are accessed by multiple threads. 231 final Rect mWinFrame; // frame given by window manager. 232 233 final Rect mPendingVisibleInsets = new Rect(); 234 final Rect mPendingContentInsets = new Rect(); 235 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 236 = new ViewTreeObserver.InternalInsetsInfo(); 237 238 final Configuration mLastConfiguration = new Configuration(); 239 final Configuration mPendingConfiguration = new Configuration(); 240 241 class ResizedInfo { 242 Rect coveredInsets; 243 Rect visibleInsets; 244 Configuration newConfig; 245 } 246 247 boolean mScrollMayChange; 248 int mSoftInputMode; 249 View mLastScrolledFocus; 250 int mScrollY; 251 int mCurScrollY; 252 Scroller mScroller; 253 HardwareLayer mResizeBuffer; 254 long mResizeBufferStartTime; 255 int mResizeBufferDuration; 256 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 257 private ArrayList<LayoutTransition> mPendingTransitions; 258 259 final ViewConfiguration mViewConfiguration; 260 261 /* Drag/drop */ 262 ClipDescription mDragDescription; 263 View mCurrentDragView; 264 volatile Object mLocalDragState; 265 final PointF mDragPoint = new PointF(); 266 final PointF mLastTouchPoint = new PointF(); 267 268 private boolean mProfileRendering; 269 private Thread mRenderProfiler; 270 private volatile boolean mRenderProfilingEnabled; 271 272 /** 273 * see {@link #playSoundEffect(int)} 274 */ 275 AudioManager mAudioManager; 276 277 final AccessibilityManager mAccessibilityManager; 278 279 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 280 281 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 282 283 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 284 285 private final int mDensity; 286 287 /** 288 * Consistency verifier for debugging purposes. 289 */ 290 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 291 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 292 new InputEventConsistencyVerifier(this, 0) : null; 293 294 public static IWindowSession getWindowSession(Looper mainLooper) { 295 synchronized (mStaticInit) { 296 if (!mInitialized) { 297 try { 298 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 299 sWindowSession = Display.getWindowManager().openSession( 300 imm.getClient(), imm.getInputContext()); 301 mInitialized = true; 302 } catch (RemoteException e) { 303 } 304 } 305 return sWindowSession; 306 } 307 } 308 309 public ViewRootImpl(Context context) { 310 super(); 311 312 if (MEASURE_LATENCY) { 313 if (lt == null) { 314 lt = new LatencyTimer(100, 1000); 315 } 316 } 317 318 // Initialize the statics when this class is first instantiated. This is 319 // done here instead of in the static block because Zygote does not 320 // allow the spawning of threads. 321 getWindowSession(context.getMainLooper()); 322 323 mThread = Thread.currentThread(); 324 mLocation = new WindowLeaked(null); 325 mLocation.fillInStackTrace(); 326 mWidth = -1; 327 mHeight = -1; 328 mDirty = new Rect(); 329 mTempRect = new Rect(); 330 mVisRect = new Rect(); 331 mWinFrame = new Rect(); 332 mWindow = new W(this); 333 mInputMethodCallback = new InputMethodCallback(this); 334 mViewVisibility = View.GONE; 335 mTransparentRegion = new Region(); 336 mPreviousTransparentRegion = new Region(); 337 mFirst = true; // true for the first time the view is added 338 mAdded = false; 339 mAccessibilityManager = AccessibilityManager.getInstance(context); 340 mAccessibilityInteractionConnectionManager = 341 new AccessibilityInteractionConnectionManager(); 342 mAccessibilityManager.addAccessibilityStateChangeListener( 343 mAccessibilityInteractionConnectionManager); 344 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 345 mViewConfiguration = ViewConfiguration.get(context); 346 mDensity = context.getResources().getDisplayMetrics().densityDpi; 347 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 348 mProfileRendering = Boolean.parseBoolean( 349 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 350 } 351 352 public static void addFirstDrawHandler(Runnable callback) { 353 synchronized (sFirstDrawHandlers) { 354 if (!sFirstDrawComplete) { 355 sFirstDrawHandlers.add(callback); 356 } 357 } 358 } 359 360 public static void addConfigCallback(ComponentCallbacks callback) { 361 synchronized (sConfigCallbacks) { 362 sConfigCallbacks.add(callback); 363 } 364 } 365 366 // FIXME for perf testing only 367 private boolean mProfile = false; 368 369 /** 370 * Call this to profile the next traversal call. 371 * FIXME for perf testing only. Remove eventually 372 */ 373 public void profile() { 374 mProfile = true; 375 } 376 377 /** 378 * Indicates whether we are in touch mode. Calling this method triggers an IPC 379 * call and should be avoided whenever possible. 380 * 381 * @return True, if the device is in touch mode, false otherwise. 382 * 383 * @hide 384 */ 385 static boolean isInTouchMode() { 386 if (mInitialized) { 387 try { 388 return sWindowSession.getInTouchMode(); 389 } catch (RemoteException e) { 390 } 391 } 392 return false; 393 } 394 395 /** 396 * We have one child 397 */ 398 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 399 synchronized (this) { 400 if (mView == null) { 401 mView = view; 402 mFallbackEventHandler.setView(view); 403 mWindowAttributes.copyFrom(attrs); 404 attrs = mWindowAttributes; 405 406 if (view instanceof RootViewSurfaceTaker) { 407 mSurfaceHolderCallback = 408 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 409 if (mSurfaceHolderCallback != null) { 410 mSurfaceHolder = new TakenSurfaceHolder(); 411 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 412 } 413 } 414 415 // If the application owns the surface, don't enable hardware acceleration 416 if (mSurfaceHolder == null) { 417 enableHardwareAcceleration(attrs); 418 } 419 420 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 421 mTranslator = compatibilityInfo.getTranslator(); 422 423 if (mTranslator != null) { 424 mSurface.setCompatibilityTranslator(mTranslator); 425 } 426 427 boolean restore = false; 428 if (mTranslator != null) { 429 restore = true; 430 attrs.backup(); 431 mTranslator.translateWindowLayout(attrs); 432 } 433 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 434 435 if (!compatibilityInfo.supportsScreen()) { 436 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 437 mLastInCompatMode = true; 438 } 439 440 mSoftInputMode = attrs.softInputMode; 441 mWindowAttributesChanged = true; 442 mAttachInfo.mRootView = view; 443 mAttachInfo.mScalingRequired = mTranslator != null; 444 mAttachInfo.mApplicationScale = 445 mTranslator == null ? 1.0f : mTranslator.applicationScale; 446 if (panelParentView != null) { 447 mAttachInfo.mPanelParentWindowToken 448 = panelParentView.getApplicationWindowToken(); 449 } 450 mAdded = true; 451 int res; /* = WindowManagerImpl.ADD_OKAY; */ 452 453 // Schedule the first layout -before- adding to the window 454 // manager, to make sure we do the relayout before receiving 455 // any other events from the system. 456 requestLayout(); 457 if ((mWindowAttributes.inputFeatures 458 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 459 mInputChannel = new InputChannel(); 460 } 461 try { 462 res = sWindowSession.add(mWindow, mWindowAttributes, 463 getHostVisibility(), mAttachInfo.mContentInsets, 464 mInputChannel); 465 } catch (RemoteException e) { 466 mAdded = false; 467 mView = null; 468 mAttachInfo.mRootView = null; 469 mInputChannel = null; 470 mFallbackEventHandler.setView(null); 471 unscheduleTraversals(); 472 throw new RuntimeException("Adding window failed", e); 473 } finally { 474 if (restore) { 475 attrs.restore(); 476 } 477 } 478 479 if (mTranslator != null) { 480 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 481 } 482 mPendingContentInsets.set(mAttachInfo.mContentInsets); 483 mPendingVisibleInsets.set(0, 0, 0, 0); 484 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 485 if (res < WindowManagerImpl.ADD_OKAY) { 486 mView = null; 487 mAttachInfo.mRootView = null; 488 mAdded = false; 489 mFallbackEventHandler.setView(null); 490 unscheduleTraversals(); 491 switch (res) { 492 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 493 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 494 throw new WindowManagerImpl.BadTokenException( 495 "Unable to add window -- token " + attrs.token 496 + " is not valid; is your activity running?"); 497 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 498 throw new WindowManagerImpl.BadTokenException( 499 "Unable to add window -- token " + attrs.token 500 + " is not for an application"); 501 case WindowManagerImpl.ADD_APP_EXITING: 502 throw new WindowManagerImpl.BadTokenException( 503 "Unable to add window -- app for token " + attrs.token 504 + " is exiting"); 505 case WindowManagerImpl.ADD_DUPLICATE_ADD: 506 throw new WindowManagerImpl.BadTokenException( 507 "Unable to add window -- window " + mWindow 508 + " has already been added"); 509 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 510 // Silently ignore -- we would have just removed it 511 // right away, anyway. 512 return; 513 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 514 throw new WindowManagerImpl.BadTokenException( 515 "Unable to add window " + mWindow + 516 " -- another window of this type already exists"); 517 case WindowManagerImpl.ADD_PERMISSION_DENIED: 518 throw new WindowManagerImpl.BadTokenException( 519 "Unable to add window " + mWindow + 520 " -- permission denied for this window type"); 521 } 522 throw new RuntimeException( 523 "Unable to add window -- unknown error code " + res); 524 } 525 526 if (view instanceof RootViewSurfaceTaker) { 527 mInputQueueCallback = 528 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 529 } 530 if (mInputChannel != null) { 531 if (mInputQueueCallback != null) { 532 mInputQueue = new InputQueue(mInputChannel); 533 mInputQueueCallback.onInputQueueCreated(mInputQueue); 534 } else { 535 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 536 Looper.myQueue()); 537 } 538 } 539 540 view.assignParent(this); 541 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 542 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 543 544 if (mAccessibilityManager.isEnabled()) { 545 mAccessibilityInteractionConnectionManager.ensureConnection(); 546 } 547 } 548 } 549 } 550 551 private void destroyHardwareResources() { 552 if (mAttachInfo.mHardwareRenderer != null) { 553 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 554 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 555 } 556 mAttachInfo.mHardwareRenderer.destroy(false); 557 } 558 } 559 560 void destroyHardwareLayers() { 561 if (mThread != Thread.currentThread()) { 562 if (mAttachInfo.mHardwareRenderer != null && 563 mAttachInfo.mHardwareRenderer.isEnabled()) { 564 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 565 } 566 } else { 567 if (mAttachInfo.mHardwareRenderer != null && 568 mAttachInfo.mHardwareRenderer.isEnabled()) { 569 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 570 } 571 } 572 } 573 574 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 575 mAttachInfo.mHardwareAccelerated = false; 576 mAttachInfo.mHardwareAccelerationRequested = false; 577 578 // Try to enable hardware acceleration if requested 579 final boolean hardwareAccelerated = 580 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 581 582 if (hardwareAccelerated) { 583 if (!HardwareRenderer.isAvailable()) { 584 return; 585 } 586 587 // Only enable hardware acceleration if we are not in the system process 588 // The window manager creates ViewAncestors to display animated preview windows 589 // of launching apps and we don't want those to be hardware accelerated 590 591 final boolean systemHwAccelerated = 592 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED_SYSTEM) != 0; 593 594 if (!HardwareRenderer.sRendererDisabled || systemHwAccelerated) { 595 // Don't enable hardware acceleration when we're not on the main thread 596 if (!systemHwAccelerated && Looper.getMainLooper() != Looper.myLooper()) { 597 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 598 + "acceleration outside of the main thread, aborting"); 599 return; 600 } 601 602 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 603 if (mAttachInfo.mHardwareRenderer != null) { 604 mAttachInfo.mHardwareRenderer.destroy(true); 605 } 606 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 607 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 608 = mAttachInfo.mHardwareRenderer != null; 609 } else { 610 // We would normally have enabled hardware acceleration, but 611 // haven't because we are in the system process. We still want 612 // what is drawn on the screen to behave as if it is accelerated, 613 // so that our preview starting windows visually match what will 614 // actually be drawn by the app. 615 mAttachInfo.mHardwareAccelerationRequested = true; 616 } 617 } 618 } 619 620 public View getView() { 621 return mView; 622 } 623 624 final WindowLeaked getLocation() { 625 return mLocation; 626 } 627 628 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 629 synchronized (this) { 630 int oldSoftInputMode = mWindowAttributes.softInputMode; 631 // preserve compatible window flag if exists. 632 int compatibleWindowFlag = 633 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 634 mWindowAttributes.copyFrom(attrs); 635 mWindowAttributes.flags |= compatibleWindowFlag; 636 637 if (newView) { 638 mSoftInputMode = attrs.softInputMode; 639 requestLayout(); 640 } 641 // Don't lose the mode we last auto-computed. 642 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 643 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 644 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 645 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 646 | (oldSoftInputMode 647 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 648 } 649 mWindowAttributesChanged = true; 650 scheduleTraversals(); 651 } 652 } 653 654 void handleAppVisibility(boolean visible) { 655 if (mAppVisible != visible) { 656 mAppVisible = visible; 657 scheduleTraversals(); 658 } 659 } 660 661 void handleGetNewSurface() { 662 mNewSurfaceNeeded = true; 663 mFullRedrawNeeded = true; 664 scheduleTraversals(); 665 } 666 667 /** 668 * {@inheritDoc} 669 */ 670 public void requestLayout() { 671 checkThread(); 672 mLayoutRequested = true; 673 scheduleTraversals(); 674 } 675 676 /** 677 * {@inheritDoc} 678 */ 679 public boolean isLayoutRequested() { 680 return mLayoutRequested; 681 } 682 683 public void invalidateChild(View child, Rect dirty) { 684 checkThread(); 685 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 686 if (dirty == null) { 687 // Fast invalidation for GL-enabled applications; GL must redraw everything 688 invalidate(); 689 return; 690 } 691 if (mCurScrollY != 0 || mTranslator != null) { 692 mTempRect.set(dirty); 693 dirty = mTempRect; 694 if (mCurScrollY != 0) { 695 dirty.offset(0, -mCurScrollY); 696 } 697 if (mTranslator != null) { 698 mTranslator.translateRectInAppWindowToScreen(dirty); 699 } 700 if (mAttachInfo.mScalingRequired) { 701 dirty.inset(-1, -1); 702 } 703 } 704 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 705 mAttachInfo.mSetIgnoreDirtyState = true; 706 mAttachInfo.mIgnoreDirtyState = true; 707 } 708 mDirty.union(dirty); 709 if (!mWillDrawSoon) { 710 scheduleTraversals(); 711 } 712 } 713 714 void invalidate() { 715 mDirty.set(0, 0, mWidth, mHeight); 716 scheduleTraversals(); 717 } 718 719 void setStopped(boolean stopped) { 720 if (mStopped != stopped) { 721 mStopped = stopped; 722 if (!stopped) { 723 scheduleTraversals(); 724 } 725 } 726 } 727 728 public ViewParent getParent() { 729 return null; 730 } 731 732 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 733 invalidateChild(null, dirty); 734 return null; 735 } 736 737 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 738 if (child != mView) { 739 throw new RuntimeException("child is not mine, honest!"); 740 } 741 // Note: don't apply scroll offset, because we want to know its 742 // visibility in the virtual canvas being given to the view hierarchy. 743 return r.intersect(0, 0, mWidth, mHeight); 744 } 745 746 public void bringChildToFront(View child) { 747 } 748 749 public void scheduleTraversals() { 750 if (!mTraversalScheduled) { 751 mTraversalScheduled = true; 752 753 //noinspection ConstantConditions 754 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 755 final long now = System.nanoTime(); 756 Log.d(TAG, "Latency: Scheduled traversal, it has been " 757 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 758 + "ms since the last traversal finished."); 759 } 760 761 sendEmptyMessage(DO_TRAVERSAL); 762 } 763 } 764 765 public void unscheduleTraversals() { 766 if (mTraversalScheduled) { 767 mTraversalScheduled = false; 768 removeMessages(DO_TRAVERSAL); 769 } 770 } 771 772 int getHostVisibility() { 773 return mAppVisible ? mView.getVisibility() : View.GONE; 774 } 775 776 void disposeResizeBuffer() { 777 if (mResizeBuffer != null) { 778 mResizeBuffer.destroy(); 779 mResizeBuffer = null; 780 } 781 } 782 783 /** 784 * Add LayoutTransition to the list of transitions to be started in the next traversal. 785 * This list will be cleared after the transitions on the list are start()'ed. These 786 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 787 * happens during the layout phase of traversal, which we want to complete before any of the 788 * animations are started (because those animations may side-effect properties that layout 789 * depends upon, like the bounding rectangles of the affected views). So we add the transition 790 * to the list and it is started just prior to starting the drawing phase of traversal. 791 * 792 * @param transition The LayoutTransition to be started on the next traversal. 793 * 794 * @hide 795 */ 796 public void requestTransitionStart(LayoutTransition transition) { 797 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 798 if (mPendingTransitions == null) { 799 mPendingTransitions = new ArrayList<LayoutTransition>(); 800 } 801 mPendingTransitions.add(transition); 802 } 803 } 804 805 private void performTraversals() { 806 // cache mView since it is used so much below... 807 final View host = mView; 808 809 if (DBG) { 810 System.out.println("======================================"); 811 System.out.println("performTraversals"); 812 host.debug(); 813 } 814 815 if (host == null || !mAdded) 816 return; 817 818 mTraversalScheduled = false; 819 mWillDrawSoon = true; 820 boolean windowSizeMayChange = false; 821 boolean fullRedrawNeeded = mFullRedrawNeeded; 822 boolean newSurface = false; 823 boolean surfaceChanged = false; 824 WindowManager.LayoutParams lp = mWindowAttributes; 825 826 int desiredWindowWidth; 827 int desiredWindowHeight; 828 int childWidthMeasureSpec; 829 int childHeightMeasureSpec; 830 831 final View.AttachInfo attachInfo = mAttachInfo; 832 833 final int viewVisibility = getHostVisibility(); 834 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 835 || mNewSurfaceNeeded; 836 837 WindowManager.LayoutParams params = null; 838 if (mWindowAttributesChanged) { 839 mWindowAttributesChanged = false; 840 surfaceChanged = true; 841 params = lp; 842 } 843 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 844 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 845 params = lp; 846 fullRedrawNeeded = true; 847 mLayoutRequested = true; 848 if (mLastInCompatMode) { 849 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 850 mLastInCompatMode = false; 851 } else { 852 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 853 mLastInCompatMode = true; 854 } 855 } 856 Rect frame = mWinFrame; 857 if (mFirst) { 858 fullRedrawNeeded = true; 859 mLayoutRequested = true; 860 861 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 862 // NOTE -- system code, won't try to do compat mode. 863 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 864 Point size = new Point(); 865 disp.getRealSize(size); 866 desiredWindowWidth = size.x; 867 desiredWindowHeight = size.y; 868 } else { 869 DisplayMetrics packageMetrics = 870 mView.getContext().getResources().getDisplayMetrics(); 871 desiredWindowWidth = packageMetrics.widthPixels; 872 desiredWindowHeight = packageMetrics.heightPixels; 873 } 874 875 // For the very first time, tell the view hierarchy that it 876 // is attached to the window. Note that at this point the surface 877 // object is not initialized to its backing store, but soon it 878 // will be (assuming the window is visible). 879 attachInfo.mSurface = mSurface; 880 // We used to use the following condition to choose 32 bits drawing caches: 881 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 882 // However, windows are now always 32 bits by default, so choose 32 bits 883 attachInfo.mUse32BitDrawingCache = true; 884 attachInfo.mHasWindowFocus = false; 885 attachInfo.mWindowVisibility = viewVisibility; 886 attachInfo.mRecomputeGlobalAttributes = false; 887 attachInfo.mKeepScreenOn = false; 888 attachInfo.mSystemUiVisibility = 0; 889 viewVisibilityChanged = false; 890 mLastConfiguration.setTo(host.getResources().getConfiguration()); 891 host.dispatchAttachedToWindow(attachInfo, 0); 892 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 893 894 host.fitSystemWindows(mAttachInfo.mContentInsets); 895 896 } else { 897 desiredWindowWidth = frame.width(); 898 desiredWindowHeight = frame.height(); 899 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 900 if (DEBUG_ORIENTATION) Log.v(TAG, 901 "View " + host + " resized to: " + frame); 902 fullRedrawNeeded = true; 903 mLayoutRequested = true; 904 windowSizeMayChange = true; 905 } 906 } 907 908 if (viewVisibilityChanged) { 909 attachInfo.mWindowVisibility = viewVisibility; 910 host.dispatchWindowVisibilityChanged(viewVisibility); 911 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 912 destroyHardwareResources(); 913 } 914 if (viewVisibility == View.GONE) { 915 // After making a window gone, we will count it as being 916 // shown for the first time the next time it gets focus. 917 mHasHadWindowFocus = false; 918 } 919 } 920 921 boolean insetsChanged = false; 922 923 if (mLayoutRequested && !mStopped) { 924 // Execute enqueued actions on every layout in case a view that was detached 925 // enqueued an action after being detached 926 getRunQueue().executeActions(attachInfo.mHandler); 927 928 final Resources res = mView.getContext().getResources(); 929 930 if (mFirst) { 931 // make sure touch mode code executes by setting cached value 932 // to opposite of the added touch mode. 933 mAttachInfo.mInTouchMode = !mAddedTouchMode; 934 ensureTouchModeLocally(mAddedTouchMode); 935 } else { 936 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 937 insetsChanged = true; 938 } 939 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 940 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 941 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 942 + mAttachInfo.mVisibleInsets); 943 } 944 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 945 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 946 windowSizeMayChange = true; 947 948 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 949 // NOTE -- system code, won't try to do compat mode. 950 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 951 Point size = new Point(); 952 disp.getRealSize(size); 953 desiredWindowWidth = size.x; 954 desiredWindowHeight = size.y; 955 } else { 956 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 957 desiredWindowWidth = packageMetrics.widthPixels; 958 desiredWindowHeight = packageMetrics.heightPixels; 959 } 960 } 961 } 962 963 // Ask host how big it wants to be 964 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 965 "Measuring " + host + " in display " + desiredWindowWidth 966 + "x" + desiredWindowHeight + "..."); 967 968 boolean goodMeasure = false; 969 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 970 // On large screens, we don't want to allow dialogs to just 971 // stretch to fill the entire width of the screen to display 972 // one line of text. First try doing the layout at a smaller 973 // size to see if it will fit. 974 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 975 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 976 int baseSize = 0; 977 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 978 baseSize = (int)mTmpValue.getDimension(packageMetrics); 979 } 980 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 981 if (baseSize != 0 && desiredWindowWidth > baseSize) { 982 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 983 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 984 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 985 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 986 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 987 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 988 goodMeasure = true; 989 } else { 990 // Didn't fit in that size... try expanding a bit. 991 baseSize = (baseSize+desiredWindowWidth)/2; 992 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 993 + baseSize); 994 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 995 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 996 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 997 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 998 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 999 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1000 goodMeasure = true; 1001 } 1002 } 1003 } 1004 } 1005 1006 if (!goodMeasure) { 1007 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1008 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1009 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1010 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1011 windowSizeMayChange = true; 1012 } 1013 } 1014 1015 if (DBG) { 1016 System.out.println("======================================"); 1017 System.out.println("performTraversals -- after measure"); 1018 host.debug(); 1019 } 1020 } 1021 1022 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1023 //Log.i(TAG, "Computing view hierarchy attributes!"); 1024 attachInfo.mRecomputeGlobalAttributes = false; 1025 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1026 int oldVis = attachInfo.mSystemUiVisibility; 1027 attachInfo.mKeepScreenOn = false; 1028 attachInfo.mSystemUiVisibility = 0; 1029 attachInfo.mHasSystemUiListeners = false; 1030 host.dispatchCollectViewAttributes(0); 1031 if (attachInfo.mKeepScreenOn != oldScreenOn 1032 || attachInfo.mSystemUiVisibility != oldVis 1033 || attachInfo.mHasSystemUiListeners) { 1034 params = lp; 1035 } 1036 } 1037 1038 if (mFirst || attachInfo.mViewVisibilityChanged) { 1039 attachInfo.mViewVisibilityChanged = false; 1040 int resizeMode = mSoftInputMode & 1041 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1042 // If we are in auto resize mode, then we need to determine 1043 // what mode to use now. 1044 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1045 final int N = attachInfo.mScrollContainers.size(); 1046 for (int i=0; i<N; i++) { 1047 if (attachInfo.mScrollContainers.get(i).isShown()) { 1048 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1049 } 1050 } 1051 if (resizeMode == 0) { 1052 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1053 } 1054 if ((lp.softInputMode & 1055 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1056 lp.softInputMode = (lp.softInputMode & 1057 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1058 resizeMode; 1059 params = lp; 1060 } 1061 } 1062 } 1063 1064 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1065 if (!PixelFormat.formatHasAlpha(params.format)) { 1066 params.format = PixelFormat.TRANSLUCENT; 1067 } 1068 } 1069 1070 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1071 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1072 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1073 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1074 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1075 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1076 1077 final boolean computesInternalInsets = 1078 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1079 1080 boolean insetsPending = false; 1081 int relayoutResult = 0; 1082 1083 if (mFirst || windowShouldResize || insetsChanged || 1084 viewVisibilityChanged || params != null) { 1085 1086 if (viewVisibility == View.VISIBLE) { 1087 // If this window is giving internal insets to the window 1088 // manager, and it is being added or changing its visibility, 1089 // then we want to first give the window manager "fake" 1090 // insets to cause it to effectively ignore the content of 1091 // the window during layout. This avoids it briefly causing 1092 // other windows to resize/move based on the raw frame of the 1093 // window, waiting until we can finish laying out this window 1094 // and get back to the window manager with the ultimately 1095 // computed insets. 1096 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1097 } 1098 1099 if (mSurfaceHolder != null) { 1100 mSurfaceHolder.mSurfaceLock.lock(); 1101 mDrawingAllowed = true; 1102 } 1103 1104 boolean hwInitialized = false; 1105 boolean contentInsetsChanged = false; 1106 boolean visibleInsetsChanged; 1107 boolean hadSurface = mSurface.isValid(); 1108 1109 try { 1110 int fl = 0; 1111 if (params != null) { 1112 fl = params.flags; 1113 if (attachInfo.mKeepScreenOn) { 1114 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1115 } 1116 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1117 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1118 || params.subtreeSystemUiVisibility != 0 1119 || params.systemUiVisibility != 0; 1120 } 1121 if (DEBUG_LAYOUT) { 1122 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1123 host.getMeasuredHeight() + ", params=" + params); 1124 } 1125 1126 final int surfaceGenerationId = mSurface.getGenerationId(); 1127 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1128 1129 if (params != null) { 1130 params.flags = fl; 1131 } 1132 1133 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1134 + " content=" + mPendingContentInsets.toShortString() 1135 + " visible=" + mPendingVisibleInsets.toShortString() 1136 + " surface=" + mSurface); 1137 1138 if (mPendingConfiguration.seq != 0) { 1139 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1140 + mPendingConfiguration); 1141 updateConfiguration(mPendingConfiguration, !mFirst); 1142 mPendingConfiguration.seq = 0; 1143 } 1144 1145 contentInsetsChanged = !mPendingContentInsets.equals( 1146 mAttachInfo.mContentInsets); 1147 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1148 mAttachInfo.mVisibleInsets); 1149 if (contentInsetsChanged) { 1150 if (mWidth > 0 && mHeight > 0 && 1151 mSurface != null && mSurface.isValid() && 1152 !mAttachInfo.mTurnOffWindowResizeAnim && 1153 mAttachInfo.mHardwareRenderer != null && 1154 mAttachInfo.mHardwareRenderer.isEnabled() && 1155 mAttachInfo.mHardwareRenderer.validate() && 1156 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1157 1158 disposeResizeBuffer(); 1159 1160 boolean completed = false; 1161 HardwareCanvas canvas = null; 1162 try { 1163 if (mResizeBuffer == null) { 1164 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1165 mWidth, mHeight, false); 1166 } else if (mResizeBuffer.getWidth() != mWidth || 1167 mResizeBuffer.getHeight() != mHeight) { 1168 mResizeBuffer.resize(mWidth, mHeight); 1169 } 1170 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1171 canvas.setViewport(mWidth, mHeight); 1172 canvas.onPreDraw(null); 1173 final int restoreCount = canvas.save(); 1174 1175 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1176 1177 int yoff; 1178 final boolean scrolling = mScroller != null 1179 && mScroller.computeScrollOffset(); 1180 if (scrolling) { 1181 yoff = mScroller.getCurrY(); 1182 mScroller.abortAnimation(); 1183 } else { 1184 yoff = mScrollY; 1185 } 1186 1187 canvas.translate(0, -yoff); 1188 if (mTranslator != null) { 1189 mTranslator.translateCanvas(canvas); 1190 } 1191 1192 mView.draw(canvas); 1193 1194 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1195 mResizeBufferDuration = mView.getResources().getInteger( 1196 com.android.internal.R.integer.config_mediumAnimTime); 1197 completed = true; 1198 1199 canvas.restoreToCount(restoreCount); 1200 } catch (OutOfMemoryError e) { 1201 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1202 } finally { 1203 if (canvas != null) { 1204 canvas.onPostDraw(); 1205 } 1206 if (mResizeBuffer != null) { 1207 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1208 if (!completed) { 1209 mResizeBuffer.destroy(); 1210 mResizeBuffer = null; 1211 } 1212 } 1213 } 1214 } 1215 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1216 host.fitSystemWindows(mAttachInfo.mContentInsets); 1217 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1218 + mAttachInfo.mContentInsets); 1219 } 1220 if (visibleInsetsChanged) { 1221 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1222 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1223 + mAttachInfo.mVisibleInsets); 1224 } 1225 1226 if (!hadSurface) { 1227 if (mSurface.isValid()) { 1228 // If we are creating a new surface, then we need to 1229 // completely redraw it. Also, when we get to the 1230 // point of drawing it we will hold off and schedule 1231 // a new traversal instead. This is so we can tell the 1232 // window manager about all of the windows being displayed 1233 // before actually drawing them, so it can display then 1234 // all at once. 1235 newSurface = true; 1236 fullRedrawNeeded = true; 1237 mPreviousTransparentRegion.setEmpty(); 1238 1239 if (mAttachInfo.mHardwareRenderer != null) { 1240 try { 1241 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1242 } catch (Surface.OutOfResourcesException e) { 1243 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1244 try { 1245 if (!sWindowSession.outOfMemory(mWindow)) { 1246 Slog.w(TAG, "No processes killed for memory; killing self"); 1247 Process.killProcess(Process.myPid()); 1248 } 1249 } catch (RemoteException ex) { 1250 } 1251 mLayoutRequested = true; // ask wm for a new surface next time. 1252 return; 1253 } 1254 } 1255 } 1256 } else if (!mSurface.isValid()) { 1257 // If the surface has been removed, then reset the scroll 1258 // positions. 1259 mLastScrolledFocus = null; 1260 mScrollY = mCurScrollY = 0; 1261 if (mScroller != null) { 1262 mScroller.abortAnimation(); 1263 } 1264 disposeResizeBuffer(); 1265 // Our surface is gone 1266 if (mAttachInfo.mHardwareRenderer != null && 1267 mAttachInfo.mHardwareRenderer.isEnabled()) { 1268 mAttachInfo.mHardwareRenderer.destroy(true); 1269 } 1270 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1271 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1272 fullRedrawNeeded = true; 1273 try { 1274 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1275 } catch (Surface.OutOfResourcesException e) { 1276 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1277 try { 1278 if (!sWindowSession.outOfMemory(mWindow)) { 1279 Slog.w(TAG, "No processes killed for memory; killing self"); 1280 Process.killProcess(Process.myPid()); 1281 } 1282 } catch (RemoteException ex) { 1283 } 1284 mLayoutRequested = true; // ask wm for a new surface next time. 1285 return; 1286 } 1287 } 1288 } catch (RemoteException e) { 1289 } 1290 1291 if (DEBUG_ORIENTATION) Log.v( 1292 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1293 1294 attachInfo.mWindowLeft = frame.left; 1295 attachInfo.mWindowTop = frame.top; 1296 1297 // !!FIXME!! This next section handles the case where we did not get the 1298 // window size we asked for. We should avoid this by getting a maximum size from 1299 // the window session beforehand. 1300 mWidth = frame.width(); 1301 mHeight = frame.height(); 1302 1303 if (mSurfaceHolder != null) { 1304 // The app owns the surface; tell it about what is going on. 1305 if (mSurface.isValid()) { 1306 // XXX .copyFrom() doesn't work! 1307 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1308 mSurfaceHolder.mSurface = mSurface; 1309 } 1310 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1311 mSurfaceHolder.mSurfaceLock.unlock(); 1312 if (mSurface.isValid()) { 1313 if (!hadSurface) { 1314 mSurfaceHolder.ungetCallbacks(); 1315 1316 mIsCreating = true; 1317 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1318 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1319 if (callbacks != null) { 1320 for (SurfaceHolder.Callback c : callbacks) { 1321 c.surfaceCreated(mSurfaceHolder); 1322 } 1323 } 1324 surfaceChanged = true; 1325 } 1326 if (surfaceChanged) { 1327 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1328 lp.format, mWidth, mHeight); 1329 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1330 if (callbacks != null) { 1331 for (SurfaceHolder.Callback c : callbacks) { 1332 c.surfaceChanged(mSurfaceHolder, lp.format, 1333 mWidth, mHeight); 1334 } 1335 } 1336 } 1337 mIsCreating = false; 1338 } else if (hadSurface) { 1339 mSurfaceHolder.ungetCallbacks(); 1340 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1341 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1342 if (callbacks != null) { 1343 for (SurfaceHolder.Callback c : callbacks) { 1344 c.surfaceDestroyed(mSurfaceHolder); 1345 } 1346 } 1347 mSurfaceHolder.mSurfaceLock.lock(); 1348 try { 1349 mSurfaceHolder.mSurface = new Surface(); 1350 } finally { 1351 mSurfaceHolder.mSurfaceLock.unlock(); 1352 } 1353 } 1354 } 1355 1356 if (hwInitialized || ((windowShouldResize || params != null) && 1357 mAttachInfo.mHardwareRenderer != null && 1358 mAttachInfo.mHardwareRenderer.isEnabled())) { 1359 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1360 if (!hwInitialized && mAttachInfo.mHardwareRenderer.isEnabled()) { 1361 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1362 } 1363 } 1364 1365 if (!mStopped) { 1366 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1367 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1368 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1369 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1370 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1371 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1372 1373 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1374 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1375 + " mHeight=" + mHeight 1376 + " measuredHeight=" + host.getMeasuredHeight() 1377 + " coveredInsetsChanged=" + contentInsetsChanged); 1378 1379 // Ask host how big it wants to be 1380 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1381 1382 // Implementation of weights from WindowManager.LayoutParams 1383 // We just grow the dimensions as needed and re-measure if 1384 // needs be 1385 int width = host.getMeasuredWidth(); 1386 int height = host.getMeasuredHeight(); 1387 boolean measureAgain = false; 1388 1389 if (lp.horizontalWeight > 0.0f) { 1390 width += (int) ((mWidth - width) * lp.horizontalWeight); 1391 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1392 MeasureSpec.EXACTLY); 1393 measureAgain = true; 1394 } 1395 if (lp.verticalWeight > 0.0f) { 1396 height += (int) ((mHeight - height) * lp.verticalWeight); 1397 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1398 MeasureSpec.EXACTLY); 1399 measureAgain = true; 1400 } 1401 1402 if (measureAgain) { 1403 if (DEBUG_LAYOUT) Log.v(TAG, 1404 "And hey let's measure once more: width=" + width 1405 + " height=" + height); 1406 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1407 } 1408 1409 mLayoutRequested = true; 1410 } 1411 } 1412 } 1413 1414 final boolean didLayout = mLayoutRequested && !mStopped; 1415 boolean triggerGlobalLayoutListener = didLayout 1416 || attachInfo.mRecomputeGlobalAttributes; 1417 if (didLayout) { 1418 mLayoutRequested = false; 1419 mScrollMayChange = true; 1420 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1421 TAG, "Laying out " + host + " to (" + 1422 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1423 long startTime = 0L; 1424 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1425 startTime = SystemClock.elapsedRealtime(); 1426 } 1427 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1428 1429 if (false && ViewDebug.consistencyCheckEnabled) { 1430 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1431 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1432 + "please refer to the logs with the tag " 1433 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1434 } 1435 } 1436 1437 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1438 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1439 } 1440 1441 // By this point all views have been sized and positionned 1442 // We can compute the transparent area 1443 1444 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1445 // start out transparent 1446 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1447 host.getLocationInWindow(mTmpLocation); 1448 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1449 mTmpLocation[0] + host.mRight - host.mLeft, 1450 mTmpLocation[1] + host.mBottom - host.mTop); 1451 1452 host.gatherTransparentRegion(mTransparentRegion); 1453 if (mTranslator != null) { 1454 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1455 } 1456 1457 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1458 mPreviousTransparentRegion.set(mTransparentRegion); 1459 // reconfigure window manager 1460 try { 1461 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1462 } catch (RemoteException e) { 1463 } 1464 } 1465 } 1466 1467 if (DBG) { 1468 System.out.println("======================================"); 1469 System.out.println("performTraversals -- after setFrame"); 1470 host.debug(); 1471 } 1472 } 1473 1474 if (triggerGlobalLayoutListener) { 1475 attachInfo.mRecomputeGlobalAttributes = false; 1476 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1477 1478 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1479 postSendWindowContentChangedCallback(); 1480 } 1481 } 1482 1483 if (computesInternalInsets) { 1484 // Clear the original insets. 1485 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1486 insets.reset(); 1487 1488 // Compute new insets in place. 1489 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1490 1491 // Tell the window manager. 1492 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1493 mLastGivenInsets.set(insets); 1494 1495 // Translate insets to screen coordinates if needed. 1496 final Rect contentInsets; 1497 final Rect visibleInsets; 1498 final Region touchableRegion; 1499 if (mTranslator != null) { 1500 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1501 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1502 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1503 } else { 1504 contentInsets = insets.contentInsets; 1505 visibleInsets = insets.visibleInsets; 1506 touchableRegion = insets.touchableRegion; 1507 } 1508 1509 try { 1510 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1511 contentInsets, visibleInsets, touchableRegion); 1512 } catch (RemoteException e) { 1513 } 1514 } 1515 } 1516 1517 if (mFirst) { 1518 // handle first focus request 1519 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1520 + mView.hasFocus()); 1521 if (mView != null) { 1522 if (!mView.hasFocus()) { 1523 mView.requestFocus(View.FOCUS_FORWARD); 1524 mFocusedView = mRealFocusedView = mView.findFocus(); 1525 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1526 + mFocusedView); 1527 } else { 1528 mRealFocusedView = mView.findFocus(); 1529 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1530 + mRealFocusedView); 1531 } 1532 } 1533 } 1534 1535 mFirst = false; 1536 mWillDrawSoon = false; 1537 mNewSurfaceNeeded = false; 1538 mViewVisibility = viewVisibility; 1539 1540 if (mAttachInfo.mHasWindowFocus) { 1541 final boolean imTarget = WindowManager.LayoutParams 1542 .mayUseInputMethod(mWindowAttributes.flags); 1543 if (imTarget != mLastWasImTarget) { 1544 mLastWasImTarget = imTarget; 1545 InputMethodManager imm = InputMethodManager.peekInstance(); 1546 if (imm != null && imTarget) { 1547 imm.startGettingWindowFocus(mView); 1548 imm.onWindowFocus(mView, mView.findFocus(), 1549 mWindowAttributes.softInputMode, 1550 !mHasHadWindowFocus, mWindowAttributes.flags); 1551 } 1552 } 1553 } 1554 1555 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1556 viewVisibility != View.VISIBLE; 1557 1558 if (!cancelDraw && !newSurface) { 1559 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1560 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1561 mPendingTransitions.get(i).startChangingAnimations(); 1562 } 1563 mPendingTransitions.clear(); 1564 } 1565 mFullRedrawNeeded = false; 1566 1567 final long drawStartTime; 1568 if (ViewDebug.DEBUG_LATENCY) { 1569 drawStartTime = System.nanoTime(); 1570 } 1571 1572 draw(fullRedrawNeeded); 1573 1574 if (ViewDebug.DEBUG_LATENCY) { 1575 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1576 } 1577 1578 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1579 || mReportNextDraw) { 1580 if (LOCAL_LOGV) { 1581 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1582 } 1583 mReportNextDraw = false; 1584 if (mSurfaceHolder != null && mSurface.isValid()) { 1585 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1586 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1587 if (callbacks != null) { 1588 for (SurfaceHolder.Callback c : callbacks) { 1589 if (c instanceof SurfaceHolder.Callback2) { 1590 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1591 mSurfaceHolder); 1592 } 1593 } 1594 } 1595 } 1596 try { 1597 sWindowSession.finishDrawing(mWindow); 1598 } catch (RemoteException e) { 1599 } 1600 } 1601 } else { 1602 // We were supposed to report when we are done drawing. Since we canceled the 1603 // draw, remember it here. 1604 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1605 mReportNextDraw = true; 1606 } 1607 if (fullRedrawNeeded) { 1608 mFullRedrawNeeded = true; 1609 } 1610 1611 if (viewVisibility == View.VISIBLE) { 1612 // Try again 1613 scheduleTraversals(); 1614 } 1615 } 1616 } 1617 1618 public void requestTransparentRegion(View child) { 1619 // the test below should not fail unless someone is messing with us 1620 checkThread(); 1621 if (mView == child) { 1622 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1623 // Need to make sure we re-evaluate the window attributes next 1624 // time around, to ensure the window has the correct format. 1625 mWindowAttributesChanged = true; 1626 requestLayout(); 1627 } 1628 } 1629 1630 /** 1631 * Figures out the measure spec for the root view in a window based on it's 1632 * layout params. 1633 * 1634 * @param windowSize 1635 * The available width or height of the window 1636 * 1637 * @param rootDimension 1638 * The layout params for one dimension (width or height) of the 1639 * window. 1640 * 1641 * @return The measure spec to use to measure the root view. 1642 */ 1643 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1644 int measureSpec; 1645 switch (rootDimension) { 1646 1647 case ViewGroup.LayoutParams.MATCH_PARENT: 1648 // Window can't resize. Force root view to be windowSize. 1649 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1650 break; 1651 case ViewGroup.LayoutParams.WRAP_CONTENT: 1652 // Window can resize. Set max size for root view. 1653 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1654 break; 1655 default: 1656 // Window wants to be an exact size. Force root view to be that size. 1657 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1658 break; 1659 } 1660 return measureSpec; 1661 } 1662 1663 int mHardwareYOffset; 1664 int mResizeAlpha; 1665 final Paint mResizePaint = new Paint(); 1666 1667 public void onHardwarePreDraw(HardwareCanvas canvas) { 1668 canvas.translate(0, -mHardwareYOffset); 1669 } 1670 1671 public void onHardwarePostDraw(HardwareCanvas canvas) { 1672 if (mResizeBuffer != null) { 1673 mResizePaint.setAlpha(mResizeAlpha); 1674 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1675 } 1676 } 1677 1678 /** 1679 * @hide 1680 */ 1681 void outputDisplayList(View view) { 1682 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1683 DisplayList displayList = view.getDisplayList(); 1684 if (displayList != null) { 1685 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1686 } 1687 } 1688 } 1689 1690 /** 1691 * @see #PROPERTY_PROFILE_RENDERING 1692 */ 1693 private void profileRendering(boolean enabled) { 1694 if (mProfileRendering) { 1695 mRenderProfilingEnabled = enabled; 1696 if (mRenderProfiler == null) { 1697 mRenderProfiler = new Thread(new Runnable() { 1698 @Override 1699 public void run() { 1700 Log.d(TAG, "Starting profiling thread"); 1701 while (mRenderProfilingEnabled) { 1702 mAttachInfo.mHandler.post(new Runnable() { 1703 @Override 1704 public void run() { 1705 mDirty.set(0, 0, mWidth, mHeight); 1706 scheduleTraversals(); 1707 } 1708 }); 1709 try { 1710 // TODO: This should use vsync when we get an API 1711 Thread.sleep(15); 1712 } catch (InterruptedException e) { 1713 Log.d(TAG, "Exiting profiling thread"); 1714 } 1715 } 1716 } 1717 }, "Rendering Profiler"); 1718 mRenderProfiler.start(); 1719 } else { 1720 mRenderProfiler.interrupt(); 1721 mRenderProfiler = null; 1722 } 1723 } 1724 } 1725 1726 private void draw(boolean fullRedrawNeeded) { 1727 Surface surface = mSurface; 1728 if (surface == null || !surface.isValid()) { 1729 return; 1730 } 1731 1732 if (!sFirstDrawComplete) { 1733 synchronized (sFirstDrawHandlers) { 1734 sFirstDrawComplete = true; 1735 final int count = sFirstDrawHandlers.size(); 1736 for (int i = 0; i< count; i++) { 1737 post(sFirstDrawHandlers.get(i)); 1738 } 1739 } 1740 } 1741 1742 scrollToRectOrFocus(null, false); 1743 1744 if (mAttachInfo.mViewScrollChanged) { 1745 mAttachInfo.mViewScrollChanged = false; 1746 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1747 } 1748 1749 int yoff; 1750 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1751 if (animating) { 1752 yoff = mScroller.getCurrY(); 1753 } else { 1754 yoff = mScrollY; 1755 } 1756 if (mCurScrollY != yoff) { 1757 mCurScrollY = yoff; 1758 fullRedrawNeeded = true; 1759 } 1760 float appScale = mAttachInfo.mApplicationScale; 1761 boolean scalingRequired = mAttachInfo.mScalingRequired; 1762 1763 int resizeAlpha = 0; 1764 if (mResizeBuffer != null) { 1765 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1766 if (deltaTime < mResizeBufferDuration) { 1767 float amt = deltaTime/(float) mResizeBufferDuration; 1768 amt = mResizeInterpolator.getInterpolation(amt); 1769 animating = true; 1770 resizeAlpha = 255 - (int)(amt*255); 1771 } else { 1772 disposeResizeBuffer(); 1773 } 1774 } 1775 1776 Rect dirty = mDirty; 1777 if (mSurfaceHolder != null) { 1778 // The app owns the surface, we won't draw. 1779 dirty.setEmpty(); 1780 if (animating) { 1781 if (mScroller != null) { 1782 mScroller.abortAnimation(); 1783 } 1784 disposeResizeBuffer(); 1785 } 1786 return; 1787 } 1788 1789 if (fullRedrawNeeded) { 1790 mAttachInfo.mIgnoreDirtyState = true; 1791 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1792 } 1793 1794 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1795 if (!dirty.isEmpty() || mIsAnimating) { 1796 mIsAnimating = false; 1797 mHardwareYOffset = yoff; 1798 mResizeAlpha = resizeAlpha; 1799 1800 mCurrentDirty.set(dirty); 1801 mCurrentDirty.union(mPreviousDirty); 1802 mPreviousDirty.set(dirty); 1803 dirty.setEmpty(); 1804 1805 Rect currentDirty = mCurrentDirty; 1806 if (animating) { 1807 currentDirty = null; 1808 } 1809 1810 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1811 mPreviousDirty.set(0, 0, mWidth, mHeight); 1812 } 1813 } 1814 1815 if (animating) { 1816 mFullRedrawNeeded = true; 1817 scheduleTraversals(); 1818 } 1819 1820 return; 1821 } 1822 1823 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1824 Log.v(TAG, "Draw " + mView + "/" 1825 + mWindowAttributes.getTitle() 1826 + ": dirty={" + dirty.left + "," + dirty.top 1827 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1828 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1829 appScale + ", width=" + mWidth + ", height=" + mHeight); 1830 } 1831 1832 if (!dirty.isEmpty() || mIsAnimating) { 1833 Canvas canvas; 1834 try { 1835 int left = dirty.left; 1836 int top = dirty.top; 1837 int right = dirty.right; 1838 int bottom = dirty.bottom; 1839 1840 final long lockCanvasStartTime; 1841 if (ViewDebug.DEBUG_LATENCY) { 1842 lockCanvasStartTime = System.nanoTime(); 1843 } 1844 1845 canvas = surface.lockCanvas(dirty); 1846 1847 if (ViewDebug.DEBUG_LATENCY) { 1848 long now = System.nanoTime(); 1849 Log.d(TAG, "Latency: Spent " 1850 + ((now - lockCanvasStartTime) * 0.000001f) 1851 + "ms waiting for surface.lockCanvas()"); 1852 } 1853 1854 if (left != dirty.left || top != dirty.top || right != dirty.right || 1855 bottom != dirty.bottom) { 1856 mAttachInfo.mIgnoreDirtyState = true; 1857 } 1858 1859 // TODO: Do this in native 1860 canvas.setDensity(mDensity); 1861 } catch (Surface.OutOfResourcesException e) { 1862 Log.e(TAG, "OutOfResourcesException locking surface", e); 1863 try { 1864 if (!sWindowSession.outOfMemory(mWindow)) { 1865 Slog.w(TAG, "No processes killed for memory; killing self"); 1866 Process.killProcess(Process.myPid()); 1867 } 1868 } catch (RemoteException ex) { 1869 } 1870 mLayoutRequested = true; // ask wm for a new surface next time. 1871 return; 1872 } catch (IllegalArgumentException e) { 1873 Log.e(TAG, "IllegalArgumentException locking surface", e); 1874 // Don't assume this is due to out of memory, it could be 1875 // something else, and if it is something else then we could 1876 // kill stuff (or ourself) for no reason. 1877 mLayoutRequested = true; // ask wm for a new surface next time. 1878 return; 1879 } 1880 1881 try { 1882 if (!dirty.isEmpty() || mIsAnimating) { 1883 long startTime = 0L; 1884 1885 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1886 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1887 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1888 //canvas.drawARGB(255, 255, 0, 0); 1889 } 1890 1891 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1892 startTime = SystemClock.elapsedRealtime(); 1893 } 1894 1895 // If this bitmap's format includes an alpha channel, we 1896 // need to clear it before drawing so that the child will 1897 // properly re-composite its drawing on a transparent 1898 // background. This automatically respects the clip/dirty region 1899 // or 1900 // If we are applying an offset, we need to clear the area 1901 // where the offset doesn't appear to avoid having garbage 1902 // left in the blank areas. 1903 if (!canvas.isOpaque() || yoff != 0) { 1904 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1905 } 1906 1907 dirty.setEmpty(); 1908 mIsAnimating = false; 1909 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1910 mView.mPrivateFlags |= View.DRAWN; 1911 1912 if (DEBUG_DRAW) { 1913 Context cxt = mView.getContext(); 1914 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1915 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1916 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1917 } 1918 try { 1919 canvas.translate(0, -yoff); 1920 if (mTranslator != null) { 1921 mTranslator.translateCanvas(canvas); 1922 } 1923 canvas.setScreenDensity(scalingRequired 1924 ? DisplayMetrics.DENSITY_DEVICE : 0); 1925 mAttachInfo.mSetIgnoreDirtyState = false; 1926 mView.draw(canvas); 1927 } finally { 1928 if (!mAttachInfo.mSetIgnoreDirtyState) { 1929 // Only clear the flag if it was not set during the mView.draw() call 1930 mAttachInfo.mIgnoreDirtyState = false; 1931 } 1932 } 1933 1934 if (false && ViewDebug.consistencyCheckEnabled) { 1935 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1936 } 1937 1938 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1939 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1940 } 1941 } 1942 1943 } finally { 1944 surface.unlockCanvasAndPost(canvas); 1945 } 1946 } 1947 1948 if (LOCAL_LOGV) { 1949 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1950 } 1951 1952 if (animating) { 1953 mFullRedrawNeeded = true; 1954 scheduleTraversals(); 1955 } 1956 } 1957 1958 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1959 final View.AttachInfo attachInfo = mAttachInfo; 1960 final Rect ci = attachInfo.mContentInsets; 1961 final Rect vi = attachInfo.mVisibleInsets; 1962 int scrollY = 0; 1963 boolean handled = false; 1964 1965 if (vi.left > ci.left || vi.top > ci.top 1966 || vi.right > ci.right || vi.bottom > ci.bottom) { 1967 // We'll assume that we aren't going to change the scroll 1968 // offset, since we want to avoid that unless it is actually 1969 // going to make the focus visible... otherwise we scroll 1970 // all over the place. 1971 scrollY = mScrollY; 1972 // We can be called for two different situations: during a draw, 1973 // to update the scroll position if the focus has changed (in which 1974 // case 'rectangle' is null), or in response to a 1975 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1976 // is non-null and we just want to scroll to whatever that 1977 // rectangle is). 1978 View focus = mRealFocusedView; 1979 1980 // When in touch mode, focus points to the previously focused view, 1981 // which may have been removed from the view hierarchy. The following 1982 // line checks whether the view is still in our hierarchy. 1983 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1984 mRealFocusedView = null; 1985 return false; 1986 } 1987 1988 if (focus != mLastScrolledFocus) { 1989 // If the focus has changed, then ignore any requests to scroll 1990 // to a rectangle; first we want to make sure the entire focus 1991 // view is visible. 1992 rectangle = null; 1993 } 1994 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 1995 + " rectangle=" + rectangle + " ci=" + ci 1996 + " vi=" + vi); 1997 if (focus == mLastScrolledFocus && !mScrollMayChange 1998 && rectangle == null) { 1999 // Optimization: if the focus hasn't changed since last 2000 // time, and no layout has happened, then just leave things 2001 // as they are. 2002 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2003 + mScrollY + " vi=" + vi.toShortString()); 2004 } else if (focus != null) { 2005 // We need to determine if the currently focused view is 2006 // within the visible part of the window and, if not, apply 2007 // a pan so it can be seen. 2008 mLastScrolledFocus = focus; 2009 mScrollMayChange = false; 2010 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2011 // Try to find the rectangle from the focus view. 2012 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2013 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2014 + mView.getWidth() + " h=" + mView.getHeight() 2015 + " ci=" + ci.toShortString() 2016 + " vi=" + vi.toShortString()); 2017 if (rectangle == null) { 2018 focus.getFocusedRect(mTempRect); 2019 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2020 + ": focusRect=" + mTempRect.toShortString()); 2021 if (mView instanceof ViewGroup) { 2022 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2023 focus, mTempRect); 2024 } 2025 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2026 "Focus in window: focusRect=" 2027 + mTempRect.toShortString() 2028 + " visRect=" + mVisRect.toShortString()); 2029 } else { 2030 mTempRect.set(rectangle); 2031 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2032 "Request scroll to rect: " 2033 + mTempRect.toShortString() 2034 + " visRect=" + mVisRect.toShortString()); 2035 } 2036 if (mTempRect.intersect(mVisRect)) { 2037 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2038 "Focus window visible rect: " 2039 + mTempRect.toShortString()); 2040 if (mTempRect.height() > 2041 (mView.getHeight()-vi.top-vi.bottom)) { 2042 // If the focus simply is not going to fit, then 2043 // best is probably just to leave things as-is. 2044 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2045 "Too tall; leaving scrollY=" + scrollY); 2046 } else if ((mTempRect.top-scrollY) < vi.top) { 2047 scrollY -= vi.top - (mTempRect.top-scrollY); 2048 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2049 "Top covered; scrollY=" + scrollY); 2050 } else if ((mTempRect.bottom-scrollY) 2051 > (mView.getHeight()-vi.bottom)) { 2052 scrollY += (mTempRect.bottom-scrollY) 2053 - (mView.getHeight()-vi.bottom); 2054 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2055 "Bottom covered; scrollY=" + scrollY); 2056 } 2057 handled = true; 2058 } 2059 } 2060 } 2061 } 2062 2063 if (scrollY != mScrollY) { 2064 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2065 + mScrollY + " , new=" + scrollY); 2066 if (!immediate && mResizeBuffer == null) { 2067 if (mScroller == null) { 2068 mScroller = new Scroller(mView.getContext()); 2069 } 2070 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2071 } else if (mScroller != null) { 2072 mScroller.abortAnimation(); 2073 } 2074 mScrollY = scrollY; 2075 } 2076 2077 return handled; 2078 } 2079 2080 public void requestChildFocus(View child, View focused) { 2081 checkThread(); 2082 if (mFocusedView != focused) { 2083 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2084 scheduleTraversals(); 2085 } 2086 mFocusedView = mRealFocusedView = focused; 2087 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2088 + mFocusedView); 2089 } 2090 2091 public void clearChildFocus(View child) { 2092 checkThread(); 2093 2094 View oldFocus = mFocusedView; 2095 2096 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2097 mFocusedView = mRealFocusedView = null; 2098 if (mView != null && !mView.hasFocus()) { 2099 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2100 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2101 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2102 } 2103 } else if (oldFocus != null) { 2104 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2105 } 2106 } 2107 2108 2109 public void focusableViewAvailable(View v) { 2110 checkThread(); 2111 2112 if (mView != null) { 2113 if (!mView.hasFocus()) { 2114 v.requestFocus(); 2115 } else { 2116 // the one case where will transfer focus away from the current one 2117 // is if the current view is a view group that prefers to give focus 2118 // to its children first AND the view is a descendant of it. 2119 mFocusedView = mView.findFocus(); 2120 boolean descendantsHaveDibsOnFocus = 2121 (mFocusedView instanceof ViewGroup) && 2122 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2123 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2124 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2125 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2126 v.requestFocus(); 2127 } 2128 } 2129 } 2130 } 2131 2132 public void recomputeViewAttributes(View child) { 2133 checkThread(); 2134 if (mView == child) { 2135 mAttachInfo.mRecomputeGlobalAttributes = true; 2136 if (!mWillDrawSoon) { 2137 scheduleTraversals(); 2138 } 2139 } 2140 } 2141 2142 void dispatchDetachedFromWindow() { 2143 if (mView != null && mView.mAttachInfo != null) { 2144 mView.dispatchDetachedFromWindow(); 2145 } 2146 2147 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2148 mAccessibilityManager.removeAccessibilityStateChangeListener( 2149 mAccessibilityInteractionConnectionManager); 2150 removeSendWindowContentChangedCallback(); 2151 2152 mView = null; 2153 mAttachInfo.mRootView = null; 2154 mAttachInfo.mSurface = null; 2155 2156 destroyHardwareRenderer(); 2157 2158 mSurface.release(); 2159 2160 if (mInputQueueCallback != null && mInputQueue != null) { 2161 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2162 mInputQueueCallback = null; 2163 mInputQueue = null; 2164 } else if (mInputChannel != null) { 2165 InputQueue.unregisterInputChannel(mInputChannel); 2166 } 2167 try { 2168 sWindowSession.remove(mWindow); 2169 } catch (RemoteException e) { 2170 } 2171 2172 // Dispose the input channel after removing the window so the Window Manager 2173 // doesn't interpret the input channel being closed as an abnormal termination. 2174 if (mInputChannel != null) { 2175 mInputChannel.dispose(); 2176 mInputChannel = null; 2177 } 2178 } 2179 2180 void updateConfiguration(Configuration config, boolean force) { 2181 if (DEBUG_CONFIGURATION) Log.v(TAG, 2182 "Applying new config to window " 2183 + mWindowAttributes.getTitle() 2184 + ": " + config); 2185 2186 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2187 if (ci != null) { 2188 config = new Configuration(config); 2189 ci.applyToConfiguration(config); 2190 } 2191 2192 synchronized (sConfigCallbacks) { 2193 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2194 sConfigCallbacks.get(i).onConfigurationChanged(config); 2195 } 2196 } 2197 if (mView != null) { 2198 // At this point the resources have been updated to 2199 // have the most recent config, whatever that is. Use 2200 // the on in them which may be newer. 2201 config = mView.getResources().getConfiguration(); 2202 if (force || mLastConfiguration.diff(config) != 0) { 2203 mLastConfiguration.setTo(config); 2204 mView.dispatchConfigurationChanged(config); 2205 } 2206 } 2207 } 2208 2209 /** 2210 * Return true if child is an ancestor of parent, (or equal to the parent). 2211 */ 2212 private static boolean isViewDescendantOf(View child, View parent) { 2213 if (child == parent) { 2214 return true; 2215 } 2216 2217 final ViewParent theParent = child.getParent(); 2218 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2219 } 2220 2221 private static void forceLayout(View view) { 2222 view.forceLayout(); 2223 if (view instanceof ViewGroup) { 2224 ViewGroup group = (ViewGroup) view; 2225 final int count = group.getChildCount(); 2226 for (int i = 0; i < count; i++) { 2227 forceLayout(group.getChildAt(i)); 2228 } 2229 } 2230 } 2231 2232 public final static int DO_TRAVERSAL = 1000; 2233 public final static int DIE = 1001; 2234 public final static int RESIZED = 1002; 2235 public final static int RESIZED_REPORT = 1003; 2236 public final static int WINDOW_FOCUS_CHANGED = 1004; 2237 public final static int DISPATCH_KEY = 1005; 2238 public final static int DISPATCH_POINTER = 1006; 2239 public final static int DISPATCH_TRACKBALL = 1007; 2240 public final static int DISPATCH_APP_VISIBILITY = 1008; 2241 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2242 public final static int FINISHED_EVENT = 1010; 2243 public final static int DISPATCH_KEY_FROM_IME = 1011; 2244 public final static int FINISH_INPUT_CONNECTION = 1012; 2245 public final static int CHECK_FOCUS = 1013; 2246 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2247 public final static int DISPATCH_DRAG_EVENT = 1015; 2248 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2249 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2250 public final static int DISPATCH_GENERIC_MOTION = 1018; 2251 public final static int UPDATE_CONFIGURATION = 1019; 2252 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2253 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2254 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2255 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2256 2257 @Override 2258 public String getMessageName(Message message) { 2259 switch (message.what) { 2260 case DO_TRAVERSAL: 2261 return "DO_TRAVERSAL"; 2262 case DIE: 2263 return "DIE"; 2264 case RESIZED: 2265 return "RESIZED"; 2266 case RESIZED_REPORT: 2267 return "RESIZED_REPORT"; 2268 case WINDOW_FOCUS_CHANGED: 2269 return "WINDOW_FOCUS_CHANGED"; 2270 case DISPATCH_KEY: 2271 return "DISPATCH_KEY"; 2272 case DISPATCH_POINTER: 2273 return "DISPATCH_POINTER"; 2274 case DISPATCH_TRACKBALL: 2275 return "DISPATCH_TRACKBALL"; 2276 case DISPATCH_APP_VISIBILITY: 2277 return "DISPATCH_APP_VISIBILITY"; 2278 case DISPATCH_GET_NEW_SURFACE: 2279 return "DISPATCH_GET_NEW_SURFACE"; 2280 case FINISHED_EVENT: 2281 return "FINISHED_EVENT"; 2282 case DISPATCH_KEY_FROM_IME: 2283 return "DISPATCH_KEY_FROM_IME"; 2284 case FINISH_INPUT_CONNECTION: 2285 return "FINISH_INPUT_CONNECTION"; 2286 case CHECK_FOCUS: 2287 return "CHECK_FOCUS"; 2288 case CLOSE_SYSTEM_DIALOGS: 2289 return "CLOSE_SYSTEM_DIALOGS"; 2290 case DISPATCH_DRAG_EVENT: 2291 return "DISPATCH_DRAG_EVENT"; 2292 case DISPATCH_DRAG_LOCATION_EVENT: 2293 return "DISPATCH_DRAG_LOCATION_EVENT"; 2294 case DISPATCH_SYSTEM_UI_VISIBILITY: 2295 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2296 case DISPATCH_GENERIC_MOTION: 2297 return "DISPATCH_GENERIC_MOTION"; 2298 case UPDATE_CONFIGURATION: 2299 return "UPDATE_CONFIGURATION"; 2300 case DO_PERFORM_ACCESSIBILITY_ACTION: 2301 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2302 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2303 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2304 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2305 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2306 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2307 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2308 2309 } 2310 return super.getMessageName(message); 2311 } 2312 2313 @Override 2314 public void handleMessage(Message msg) { 2315 switch (msg.what) { 2316 case View.AttachInfo.INVALIDATE_MSG: 2317 ((View) msg.obj).invalidate(); 2318 break; 2319 case View.AttachInfo.INVALIDATE_RECT_MSG: 2320 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2321 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2322 info.release(); 2323 break; 2324 case DO_TRAVERSAL: 2325 if (mProfile) { 2326 Debug.startMethodTracing("ViewAncestor"); 2327 } 2328 2329 final long traversalStartTime; 2330 if (ViewDebug.DEBUG_LATENCY) { 2331 traversalStartTime = System.nanoTime(); 2332 mLastDrawDurationNanos = 0; 2333 } 2334 2335 performTraversals(); 2336 2337 if (ViewDebug.DEBUG_LATENCY) { 2338 long now = System.nanoTime(); 2339 Log.d(TAG, "Latency: Spent " 2340 + ((now - traversalStartTime) * 0.000001f) 2341 + "ms in performTraversals(), with " 2342 + (mLastDrawDurationNanos * 0.000001f) 2343 + "ms of that time in draw()"); 2344 mLastTraversalFinishedTimeNanos = now; 2345 } 2346 2347 if (mProfile) { 2348 Debug.stopMethodTracing(); 2349 mProfile = false; 2350 } 2351 break; 2352 case FINISHED_EVENT: 2353 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2354 break; 2355 case DISPATCH_KEY: 2356 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2357 break; 2358 case DISPATCH_POINTER: 2359 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2360 break; 2361 case DISPATCH_TRACKBALL: 2362 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2363 break; 2364 case DISPATCH_GENERIC_MOTION: 2365 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2366 break; 2367 case DISPATCH_APP_VISIBILITY: 2368 handleAppVisibility(msg.arg1 != 0); 2369 break; 2370 case DISPATCH_GET_NEW_SURFACE: 2371 handleGetNewSurface(); 2372 break; 2373 case RESIZED: 2374 ResizedInfo ri = (ResizedInfo)msg.obj; 2375 2376 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2377 && mPendingContentInsets.equals(ri.coveredInsets) 2378 && mPendingVisibleInsets.equals(ri.visibleInsets) 2379 && ((ResizedInfo)msg.obj).newConfig == null) { 2380 break; 2381 } 2382 // fall through... 2383 case RESIZED_REPORT: 2384 if (mAdded) { 2385 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2386 if (config != null) { 2387 updateConfiguration(config, false); 2388 } 2389 mWinFrame.left = 0; 2390 mWinFrame.right = msg.arg1; 2391 mWinFrame.top = 0; 2392 mWinFrame.bottom = msg.arg2; 2393 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2394 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2395 if (msg.what == RESIZED_REPORT) { 2396 mReportNextDraw = true; 2397 } 2398 2399 if (mView != null) { 2400 forceLayout(mView); 2401 } 2402 requestLayout(); 2403 } 2404 break; 2405 case WINDOW_FOCUS_CHANGED: { 2406 if (mAdded) { 2407 boolean hasWindowFocus = msg.arg1 != 0; 2408 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2409 2410 profileRendering(hasWindowFocus); 2411 2412 if (hasWindowFocus) { 2413 boolean inTouchMode = msg.arg2 != 0; 2414 ensureTouchModeLocally(inTouchMode); 2415 2416 if (mAttachInfo.mHardwareRenderer != null && 2417 mSurface != null && mSurface.isValid()) { 2418 mFullRedrawNeeded = true; 2419 try { 2420 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2421 mAttachInfo, mHolder); 2422 } catch (Surface.OutOfResourcesException e) { 2423 Log.e(TAG, "OutOfResourcesException locking surface", e); 2424 try { 2425 if (!sWindowSession.outOfMemory(mWindow)) { 2426 Slog.w(TAG, "No processes killed for memory; killing self"); 2427 Process.killProcess(Process.myPid()); 2428 } 2429 } catch (RemoteException ex) { 2430 } 2431 // Retry in a bit. 2432 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2433 return; 2434 } 2435 } 2436 } 2437 2438 mLastWasImTarget = WindowManager.LayoutParams 2439 .mayUseInputMethod(mWindowAttributes.flags); 2440 2441 InputMethodManager imm = InputMethodManager.peekInstance(); 2442 if (mView != null) { 2443 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2444 imm.startGettingWindowFocus(mView); 2445 } 2446 mAttachInfo.mKeyDispatchState.reset(); 2447 mView.dispatchWindowFocusChanged(hasWindowFocus); 2448 } 2449 2450 // Note: must be done after the focus change callbacks, 2451 // so all of the view state is set up correctly. 2452 if (hasWindowFocus) { 2453 if (imm != null && mLastWasImTarget) { 2454 imm.onWindowFocus(mView, mView.findFocus(), 2455 mWindowAttributes.softInputMode, 2456 !mHasHadWindowFocus, mWindowAttributes.flags); 2457 } 2458 // Clear the forward bit. We can just do this directly, since 2459 // the window manager doesn't care about it. 2460 mWindowAttributes.softInputMode &= 2461 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2462 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2463 .softInputMode &= 2464 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2465 mHasHadWindowFocus = true; 2466 } 2467 2468 if (hasWindowFocus && mView != null) { 2469 sendAccessibilityEvents(); 2470 } 2471 } 2472 } break; 2473 case DIE: 2474 doDie(); 2475 break; 2476 case DISPATCH_KEY_FROM_IME: { 2477 if (LOCAL_LOGV) Log.v( 2478 TAG, "Dispatching key " 2479 + msg.obj + " from IME to " + mView); 2480 KeyEvent event = (KeyEvent)msg.obj; 2481 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2482 // The IME is trying to say this event is from the 2483 // system! Bad bad bad! 2484 //noinspection UnusedAssignment 2485 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2486 } 2487 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2488 } break; 2489 case FINISH_INPUT_CONNECTION: { 2490 InputMethodManager imm = InputMethodManager.peekInstance(); 2491 if (imm != null) { 2492 imm.reportFinishInputConnection((InputConnection)msg.obj); 2493 } 2494 } break; 2495 case CHECK_FOCUS: { 2496 InputMethodManager imm = InputMethodManager.peekInstance(); 2497 if (imm != null) { 2498 imm.checkFocus(); 2499 } 2500 } break; 2501 case CLOSE_SYSTEM_DIALOGS: { 2502 if (mView != null) { 2503 mView.onCloseSystemDialogs((String)msg.obj); 2504 } 2505 } break; 2506 case DISPATCH_DRAG_EVENT: 2507 case DISPATCH_DRAG_LOCATION_EVENT: { 2508 DragEvent event = (DragEvent)msg.obj; 2509 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2510 handleDragEvent(event); 2511 } break; 2512 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2513 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2514 } break; 2515 case UPDATE_CONFIGURATION: { 2516 Configuration config = (Configuration)msg.obj; 2517 if (config.isOtherSeqNewer(mLastConfiguration)) { 2518 config = mLastConfiguration; 2519 } 2520 updateConfiguration(config, false); 2521 } break; 2522 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2523 if (mView != null) { 2524 getAccessibilityInteractionController() 2525 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2526 } 2527 } break; 2528 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2529 if (mView != null) { 2530 getAccessibilityInteractionController() 2531 .perfromAccessibilityActionUiThread(msg); 2532 } 2533 } break; 2534 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2535 if (mView != null) { 2536 getAccessibilityInteractionController() 2537 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2538 } 2539 } break; 2540 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2541 if (mView != null) { 2542 getAccessibilityInteractionController() 2543 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2544 } 2545 } break; 2546 } 2547 } 2548 2549 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2550 if (mFinishedCallback != null) { 2551 Slog.w(TAG, "Received a new input event from the input queue but there is " 2552 + "already an unfinished input event in progress."); 2553 } 2554 2555 if (ViewDebug.DEBUG_LATENCY) { 2556 mInputEventReceiveTimeNanos = System.nanoTime(); 2557 mInputEventDeliverTimeNanos = 0; 2558 mInputEventDeliverPostImeTimeNanos = 0; 2559 } 2560 2561 mFinishedCallback = finishedCallback; 2562 } 2563 2564 private void finishInputEvent(InputEvent event, boolean handled) { 2565 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2566 2567 if (mFinishedCallback == null) { 2568 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2569 + "is finished but there is no input event actually in progress."); 2570 return; 2571 } 2572 2573 if (ViewDebug.DEBUG_LATENCY) { 2574 final long now = System.nanoTime(); 2575 final long eventTime = event.getEventTimeNano(); 2576 final StringBuilder msg = new StringBuilder(); 2577 msg.append("Latency: Spent "); 2578 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2579 msg.append("ms processing "); 2580 if (event instanceof KeyEvent) { 2581 final KeyEvent keyEvent = (KeyEvent)event; 2582 msg.append("key event, action="); 2583 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2584 } else { 2585 final MotionEvent motionEvent = (MotionEvent)event; 2586 msg.append("motion event, action="); 2587 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2588 msg.append(", historySize="); 2589 msg.append(motionEvent.getHistorySize()); 2590 } 2591 msg.append(", handled="); 2592 msg.append(handled); 2593 msg.append(", received at +"); 2594 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2595 if (mInputEventDeliverTimeNanos != 0) { 2596 msg.append("ms, delivered at +"); 2597 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2598 } 2599 if (mInputEventDeliverPostImeTimeNanos != 0) { 2600 msg.append("ms, delivered post IME at +"); 2601 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2602 } 2603 msg.append("ms, finished at +"); 2604 msg.append((now - eventTime) * 0.000001f); 2605 msg.append("ms."); 2606 Log.d(TAG, msg.toString()); 2607 } 2608 2609 mFinishedCallback.finished(handled); 2610 mFinishedCallback = null; 2611 } 2612 2613 /** 2614 * Something in the current window tells us we need to change the touch mode. For 2615 * example, we are not in touch mode, and the user touches the screen. 2616 * 2617 * If the touch mode has changed, tell the window manager, and handle it locally. 2618 * 2619 * @param inTouchMode Whether we want to be in touch mode. 2620 * @return True if the touch mode changed and focus changed was changed as a result 2621 */ 2622 boolean ensureTouchMode(boolean inTouchMode) { 2623 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2624 + "touch mode is " + mAttachInfo.mInTouchMode); 2625 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2626 2627 // tell the window manager 2628 try { 2629 sWindowSession.setInTouchMode(inTouchMode); 2630 } catch (RemoteException e) { 2631 throw new RuntimeException(e); 2632 } 2633 2634 // handle the change 2635 return ensureTouchModeLocally(inTouchMode); 2636 } 2637 2638 /** 2639 * Ensure that the touch mode for this window is set, and if it is changing, 2640 * take the appropriate action. 2641 * @param inTouchMode Whether we want to be in touch mode. 2642 * @return True if the touch mode changed and focus changed was changed as a result 2643 */ 2644 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2645 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2646 + "touch mode is " + mAttachInfo.mInTouchMode); 2647 2648 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2649 2650 mAttachInfo.mInTouchMode = inTouchMode; 2651 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2652 2653 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2654 } 2655 2656 private boolean enterTouchMode() { 2657 if (mView != null) { 2658 if (mView.hasFocus()) { 2659 // note: not relying on mFocusedView here because this could 2660 // be when the window is first being added, and mFocused isn't 2661 // set yet. 2662 final View focused = mView.findFocus(); 2663 if (focused != null && !focused.isFocusableInTouchMode()) { 2664 2665 final ViewGroup ancestorToTakeFocus = 2666 findAncestorToTakeFocusInTouchMode(focused); 2667 if (ancestorToTakeFocus != null) { 2668 // there is an ancestor that wants focus after its descendants that 2669 // is focusable in touch mode.. give it focus 2670 return ancestorToTakeFocus.requestFocus(); 2671 } else { 2672 // nothing appropriate to have focus in touch mode, clear it out 2673 mView.unFocus(); 2674 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2675 mFocusedView = null; 2676 return true; 2677 } 2678 } 2679 } 2680 } 2681 return false; 2682 } 2683 2684 2685 /** 2686 * Find an ancestor of focused that wants focus after its descendants and is 2687 * focusable in touch mode. 2688 * @param focused The currently focused view. 2689 * @return An appropriate view, or null if no such view exists. 2690 */ 2691 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2692 ViewParent parent = focused.getParent(); 2693 while (parent instanceof ViewGroup) { 2694 final ViewGroup vgParent = (ViewGroup) parent; 2695 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2696 && vgParent.isFocusableInTouchMode()) { 2697 return vgParent; 2698 } 2699 if (vgParent.isRootNamespace()) { 2700 return null; 2701 } else { 2702 parent = vgParent.getParent(); 2703 } 2704 } 2705 return null; 2706 } 2707 2708 private boolean leaveTouchMode() { 2709 if (mView != null) { 2710 if (mView.hasFocus()) { 2711 // i learned the hard way to not trust mFocusedView :) 2712 mFocusedView = mView.findFocus(); 2713 if (!(mFocusedView instanceof ViewGroup)) { 2714 // some view has focus, let it keep it 2715 return false; 2716 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2717 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2718 // some view group has focus, and doesn't prefer its children 2719 // over itself for focus, so let them keep it. 2720 return false; 2721 } 2722 } 2723 2724 // find the best view to give focus to in this brave new non-touch-mode 2725 // world 2726 final View focused = focusSearch(null, View.FOCUS_DOWN); 2727 if (focused != null) { 2728 return focused.requestFocus(View.FOCUS_DOWN); 2729 } 2730 } 2731 return false; 2732 } 2733 2734 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2735 if (ViewDebug.DEBUG_LATENCY) { 2736 mInputEventDeliverTimeNanos = System.nanoTime(); 2737 } 2738 2739 final boolean isTouchEvent = event.isTouchEvent(); 2740 if (mInputEventConsistencyVerifier != null) { 2741 if (isTouchEvent) { 2742 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2743 } else { 2744 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2745 } 2746 } 2747 2748 // If there is no view, then the event will not be handled. 2749 if (mView == null || !mAdded) { 2750 finishMotionEvent(event, sendDone, false); 2751 return; 2752 } 2753 2754 // Translate the pointer event for compatibility, if needed. 2755 if (mTranslator != null) { 2756 mTranslator.translateEventInScreenToAppWindow(event); 2757 } 2758 2759 // Enter touch mode on down or scroll. 2760 final int action = event.getAction(); 2761 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2762 ensureTouchMode(true); 2763 } 2764 2765 // Offset the scroll position. 2766 if (mCurScrollY != 0) { 2767 event.offsetLocation(0, mCurScrollY); 2768 } 2769 if (MEASURE_LATENCY) { 2770 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2771 } 2772 2773 // Remember the touch position for possible drag-initiation. 2774 if (isTouchEvent) { 2775 mLastTouchPoint.x = event.getRawX(); 2776 mLastTouchPoint.y = event.getRawY(); 2777 } 2778 2779 // Dispatch touch to view hierarchy. 2780 boolean handled = mView.dispatchPointerEvent(event); 2781 if (MEASURE_LATENCY) { 2782 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2783 } 2784 if (handled) { 2785 finishMotionEvent(event, sendDone, true); 2786 return; 2787 } 2788 2789 // Pointer event was unhandled. 2790 finishMotionEvent(event, sendDone, false); 2791 } 2792 2793 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2794 event.recycle(); 2795 if (sendDone) { 2796 finishInputEvent(event, handled); 2797 } 2798 //noinspection ConstantConditions 2799 if (LOCAL_LOGV || WATCH_POINTER) { 2800 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2801 Log.i(TAG, "Done dispatching!"); 2802 } 2803 } 2804 } 2805 2806 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2807 if (ViewDebug.DEBUG_LATENCY) { 2808 mInputEventDeliverTimeNanos = System.nanoTime(); 2809 } 2810 2811 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2812 2813 if (mInputEventConsistencyVerifier != null) { 2814 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2815 } 2816 2817 // If there is no view, then the event will not be handled. 2818 if (mView == null || !mAdded) { 2819 finishMotionEvent(event, sendDone, false); 2820 return; 2821 } 2822 2823 // Deliver the trackball event to the view. 2824 if (mView.dispatchTrackballEvent(event)) { 2825 // If we reach this, we delivered a trackball event to mView and 2826 // mView consumed it. Because we will not translate the trackball 2827 // event into a key event, touch mode will not exit, so we exit 2828 // touch mode here. 2829 ensureTouchMode(false); 2830 2831 finishMotionEvent(event, sendDone, true); 2832 mLastTrackballTime = Integer.MIN_VALUE; 2833 return; 2834 } 2835 2836 // Translate the trackball event into DPAD keys and try to deliver those. 2837 final TrackballAxis x = mTrackballAxisX; 2838 final TrackballAxis y = mTrackballAxisY; 2839 2840 long curTime = SystemClock.uptimeMillis(); 2841 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2842 // It has been too long since the last movement, 2843 // so restart at the beginning. 2844 x.reset(0); 2845 y.reset(0); 2846 mLastTrackballTime = curTime; 2847 } 2848 2849 final int action = event.getAction(); 2850 final int metaState = event.getMetaState(); 2851 switch (action) { 2852 case MotionEvent.ACTION_DOWN: 2853 x.reset(2); 2854 y.reset(2); 2855 deliverKeyEvent(new KeyEvent(curTime, curTime, 2856 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2857 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2858 InputDevice.SOURCE_KEYBOARD), false); 2859 break; 2860 case MotionEvent.ACTION_UP: 2861 x.reset(2); 2862 y.reset(2); 2863 deliverKeyEvent(new KeyEvent(curTime, curTime, 2864 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2865 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2866 InputDevice.SOURCE_KEYBOARD), false); 2867 break; 2868 } 2869 2870 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2871 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2872 + " move=" + event.getX() 2873 + " / Y=" + y.position + " step=" 2874 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2875 + " move=" + event.getY()); 2876 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2877 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2878 2879 // Generate DPAD events based on the trackball movement. 2880 // We pick the axis that has moved the most as the direction of 2881 // the DPAD. When we generate DPAD events for one axis, then the 2882 // other axis is reset -- we don't want to perform DPAD jumps due 2883 // to slight movements in the trackball when making major movements 2884 // along the other axis. 2885 int keycode = 0; 2886 int movement = 0; 2887 float accel = 1; 2888 if (xOff > yOff) { 2889 movement = x.generate((2/event.getXPrecision())); 2890 if (movement != 0) { 2891 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2892 : KeyEvent.KEYCODE_DPAD_LEFT; 2893 accel = x.acceleration; 2894 y.reset(2); 2895 } 2896 } else if (yOff > 0) { 2897 movement = y.generate((2/event.getYPrecision())); 2898 if (movement != 0) { 2899 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2900 : KeyEvent.KEYCODE_DPAD_UP; 2901 accel = y.acceleration; 2902 x.reset(2); 2903 } 2904 } 2905 2906 if (keycode != 0) { 2907 if (movement < 0) movement = -movement; 2908 int accelMovement = (int)(movement * accel); 2909 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2910 + " accelMovement=" + accelMovement 2911 + " accel=" + accel); 2912 if (accelMovement > movement) { 2913 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2914 + keycode); 2915 movement--; 2916 int repeatCount = accelMovement - movement; 2917 deliverKeyEvent(new KeyEvent(curTime, curTime, 2918 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2919 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2920 InputDevice.SOURCE_KEYBOARD), false); 2921 } 2922 while (movement > 0) { 2923 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2924 + keycode); 2925 movement--; 2926 curTime = SystemClock.uptimeMillis(); 2927 deliverKeyEvent(new KeyEvent(curTime, curTime, 2928 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2929 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2930 InputDevice.SOURCE_KEYBOARD), false); 2931 deliverKeyEvent(new KeyEvent(curTime, curTime, 2932 KeyEvent.ACTION_UP, keycode, 0, metaState, 2933 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2934 InputDevice.SOURCE_KEYBOARD), false); 2935 } 2936 mLastTrackballTime = curTime; 2937 } 2938 2939 // Unfortunately we can't tell whether the application consumed the keys, so 2940 // we always consider the trackball event handled. 2941 finishMotionEvent(event, sendDone, true); 2942 } 2943 2944 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2945 if (ViewDebug.DEBUG_LATENCY) { 2946 mInputEventDeliverTimeNanos = System.nanoTime(); 2947 } 2948 2949 if (mInputEventConsistencyVerifier != null) { 2950 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2951 } 2952 2953 final int source = event.getSource(); 2954 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2955 2956 // If there is no view, then the event will not be handled. 2957 if (mView == null || !mAdded) { 2958 if (isJoystick) { 2959 updateJoystickDirection(event, false); 2960 } 2961 finishMotionEvent(event, sendDone, false); 2962 return; 2963 } 2964 2965 // Deliver the event to the view. 2966 if (mView.dispatchGenericMotionEvent(event)) { 2967 if (isJoystick) { 2968 updateJoystickDirection(event, false); 2969 } 2970 finishMotionEvent(event, sendDone, true); 2971 return; 2972 } 2973 2974 if (isJoystick) { 2975 // Translate the joystick event into DPAD keys and try to deliver those. 2976 updateJoystickDirection(event, true); 2977 finishMotionEvent(event, sendDone, true); 2978 } else { 2979 finishMotionEvent(event, sendDone, false); 2980 } 2981 } 2982 2983 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 2984 final long time = event.getEventTime(); 2985 final int metaState = event.getMetaState(); 2986 final int deviceId = event.getDeviceId(); 2987 final int source = event.getSource(); 2988 2989 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 2990 if (xDirection == 0) { 2991 xDirection = joystickAxisValueToDirection(event.getX()); 2992 } 2993 2994 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 2995 if (yDirection == 0) { 2996 yDirection = joystickAxisValueToDirection(event.getY()); 2997 } 2998 2999 if (xDirection != mLastJoystickXDirection) { 3000 if (mLastJoystickXKeyCode != 0) { 3001 deliverKeyEvent(new KeyEvent(time, time, 3002 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3003 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3004 mLastJoystickXKeyCode = 0; 3005 } 3006 3007 mLastJoystickXDirection = xDirection; 3008 3009 if (xDirection != 0 && synthesizeNewKeys) { 3010 mLastJoystickXKeyCode = xDirection > 0 3011 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3012 deliverKeyEvent(new KeyEvent(time, time, 3013 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3014 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3015 } 3016 } 3017 3018 if (yDirection != mLastJoystickYDirection) { 3019 if (mLastJoystickYKeyCode != 0) { 3020 deliverKeyEvent(new KeyEvent(time, time, 3021 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3022 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3023 mLastJoystickYKeyCode = 0; 3024 } 3025 3026 mLastJoystickYDirection = yDirection; 3027 3028 if (yDirection != 0 && synthesizeNewKeys) { 3029 mLastJoystickYKeyCode = yDirection > 0 3030 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3031 deliverKeyEvent(new KeyEvent(time, time, 3032 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3033 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3034 } 3035 } 3036 } 3037 3038 private static int joystickAxisValueToDirection(float value) { 3039 if (value >= 0.5f) { 3040 return 1; 3041 } else if (value <= -0.5f) { 3042 return -1; 3043 } else { 3044 return 0; 3045 } 3046 } 3047 3048 /** 3049 * Returns true if the key is used for keyboard navigation. 3050 * @param keyEvent The key event. 3051 * @return True if the key is used for keyboard navigation. 3052 */ 3053 private static boolean isNavigationKey(KeyEvent keyEvent) { 3054 switch (keyEvent.getKeyCode()) { 3055 case KeyEvent.KEYCODE_DPAD_LEFT: 3056 case KeyEvent.KEYCODE_DPAD_RIGHT: 3057 case KeyEvent.KEYCODE_DPAD_UP: 3058 case KeyEvent.KEYCODE_DPAD_DOWN: 3059 case KeyEvent.KEYCODE_DPAD_CENTER: 3060 case KeyEvent.KEYCODE_PAGE_UP: 3061 case KeyEvent.KEYCODE_PAGE_DOWN: 3062 case KeyEvent.KEYCODE_MOVE_HOME: 3063 case KeyEvent.KEYCODE_MOVE_END: 3064 case KeyEvent.KEYCODE_TAB: 3065 case KeyEvent.KEYCODE_SPACE: 3066 case KeyEvent.KEYCODE_ENTER: 3067 return true; 3068 } 3069 return false; 3070 } 3071 3072 /** 3073 * Returns true if the key is used for typing. 3074 * @param keyEvent The key event. 3075 * @return True if the key is used for typing. 3076 */ 3077 private static boolean isTypingKey(KeyEvent keyEvent) { 3078 return keyEvent.getUnicodeChar() > 0; 3079 } 3080 3081 /** 3082 * See if the key event means we should leave touch mode (and leave touch mode if so). 3083 * @param event The key event. 3084 * @return Whether this key event should be consumed (meaning the act of 3085 * leaving touch mode alone is considered the event). 3086 */ 3087 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3088 // Only relevant in touch mode. 3089 if (!mAttachInfo.mInTouchMode) { 3090 return false; 3091 } 3092 3093 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3094 final int action = event.getAction(); 3095 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3096 return false; 3097 } 3098 3099 // Don't leave touch mode if the IME told us not to. 3100 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3101 return false; 3102 } 3103 3104 // If the key can be used for keyboard navigation then leave touch mode 3105 // and select a focused view if needed (in ensureTouchMode). 3106 // When a new focused view is selected, we consume the navigation key because 3107 // navigation doesn't make much sense unless a view already has focus so 3108 // the key's purpose is to set focus. 3109 if (isNavigationKey(event)) { 3110 return ensureTouchMode(false); 3111 } 3112 3113 // If the key can be used for typing then leave touch mode 3114 // and select a focused view if needed (in ensureTouchMode). 3115 // Always allow the view to process the typing key. 3116 if (isTypingKey(event)) { 3117 ensureTouchMode(false); 3118 return false; 3119 } 3120 3121 return false; 3122 } 3123 3124 int enqueuePendingEvent(Object event, boolean sendDone) { 3125 int seq = mPendingEventSeq+1; 3126 if (seq < 0) seq = 0; 3127 mPendingEventSeq = seq; 3128 mPendingEvents.put(seq, event); 3129 return sendDone ? seq : -seq; 3130 } 3131 3132 Object retrievePendingEvent(int seq) { 3133 if (seq < 0) seq = -seq; 3134 Object event = mPendingEvents.get(seq); 3135 if (event != null) { 3136 mPendingEvents.remove(seq); 3137 } 3138 return event; 3139 } 3140 3141 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3142 if (ViewDebug.DEBUG_LATENCY) { 3143 mInputEventDeliverTimeNanos = System.nanoTime(); 3144 } 3145 3146 if (mInputEventConsistencyVerifier != null) { 3147 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3148 } 3149 3150 // If there is no view, then the event will not be handled. 3151 if (mView == null || !mAdded) { 3152 finishKeyEvent(event, sendDone, false); 3153 return; 3154 } 3155 3156 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3157 3158 // Perform predispatching before the IME. 3159 if (mView.dispatchKeyEventPreIme(event)) { 3160 finishKeyEvent(event, sendDone, true); 3161 return; 3162 } 3163 3164 // Dispatch to the IME before propagating down the view hierarchy. 3165 // The IME will eventually call back into handleFinishedEvent. 3166 if (mLastWasImTarget) { 3167 InputMethodManager imm = InputMethodManager.peekInstance(); 3168 if (imm != null) { 3169 int seq = enqueuePendingEvent(event, sendDone); 3170 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3171 + seq + " event=" + event); 3172 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3173 return; 3174 } 3175 } 3176 3177 // Not dispatching to IME, continue with post IME actions. 3178 deliverKeyEventPostIme(event, sendDone); 3179 } 3180 3181 private void handleFinishedEvent(int seq, boolean handled) { 3182 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3183 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3184 + " handled=" + handled + " event=" + event); 3185 if (event != null) { 3186 final boolean sendDone = seq >= 0; 3187 if (handled) { 3188 finishKeyEvent(event, sendDone, true); 3189 } else { 3190 deliverKeyEventPostIme(event, sendDone); 3191 } 3192 } 3193 } 3194 3195 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3196 if (ViewDebug.DEBUG_LATENCY) { 3197 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3198 } 3199 3200 // If the view went away, then the event will not be handled. 3201 if (mView == null || !mAdded) { 3202 finishKeyEvent(event, sendDone, false); 3203 return; 3204 } 3205 3206 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3207 if (checkForLeavingTouchModeAndConsume(event)) { 3208 finishKeyEvent(event, sendDone, true); 3209 return; 3210 } 3211 3212 // Make sure the fallback event policy sees all keys that will be delivered to the 3213 // view hierarchy. 3214 mFallbackEventHandler.preDispatchKeyEvent(event); 3215 3216 // Deliver the key to the view hierarchy. 3217 if (mView.dispatchKeyEvent(event)) { 3218 finishKeyEvent(event, sendDone, true); 3219 return; 3220 } 3221 3222 // If the Control modifier is held, try to interpret the key as a shortcut. 3223 if (event.getAction() == KeyEvent.ACTION_UP 3224 && event.isCtrlPressed() 3225 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3226 if (mView.dispatchKeyShortcutEvent(event)) { 3227 finishKeyEvent(event, sendDone, true); 3228 return; 3229 } 3230 } 3231 3232 // Apply the fallback event policy. 3233 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3234 finishKeyEvent(event, sendDone, true); 3235 return; 3236 } 3237 3238 // Handle automatic focus changes. 3239 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3240 int direction = 0; 3241 switch (event.getKeyCode()) { 3242 case KeyEvent.KEYCODE_DPAD_LEFT: 3243 if (event.hasNoModifiers()) { 3244 direction = View.FOCUS_LEFT; 3245 } 3246 break; 3247 case KeyEvent.KEYCODE_DPAD_RIGHT: 3248 if (event.hasNoModifiers()) { 3249 direction = View.FOCUS_RIGHT; 3250 } 3251 break; 3252 case KeyEvent.KEYCODE_DPAD_UP: 3253 if (event.hasNoModifiers()) { 3254 direction = View.FOCUS_UP; 3255 } 3256 break; 3257 case KeyEvent.KEYCODE_DPAD_DOWN: 3258 if (event.hasNoModifiers()) { 3259 direction = View.FOCUS_DOWN; 3260 } 3261 break; 3262 case KeyEvent.KEYCODE_TAB: 3263 if (event.hasNoModifiers()) { 3264 direction = View.FOCUS_FORWARD; 3265 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3266 direction = View.FOCUS_BACKWARD; 3267 } 3268 break; 3269 } 3270 3271 if (direction != 0) { 3272 View focused = mView != null ? mView.findFocus() : null; 3273 if (focused != null) { 3274 View v = focused.focusSearch(direction); 3275 if (v != null && v != focused) { 3276 // do the math the get the interesting rect 3277 // of previous focused into the coord system of 3278 // newly focused view 3279 focused.getFocusedRect(mTempRect); 3280 if (mView instanceof ViewGroup) { 3281 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3282 focused, mTempRect); 3283 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3284 v, mTempRect); 3285 } 3286 if (v.requestFocus(direction, mTempRect)) { 3287 playSoundEffect( 3288 SoundEffectConstants.getContantForFocusDirection(direction)); 3289 finishKeyEvent(event, sendDone, true); 3290 return; 3291 } 3292 } 3293 3294 // Give the focused view a last chance to handle the dpad key. 3295 if (mView.dispatchUnhandledMove(focused, direction)) { 3296 finishKeyEvent(event, sendDone, true); 3297 return; 3298 } 3299 } 3300 } 3301 } 3302 3303 // Key was unhandled. 3304 finishKeyEvent(event, sendDone, false); 3305 } 3306 3307 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3308 if (sendDone) { 3309 finishInputEvent(event, handled); 3310 } 3311 } 3312 3313 /* drag/drop */ 3314 void setLocalDragState(Object obj) { 3315 mLocalDragState = obj; 3316 } 3317 3318 private void handleDragEvent(DragEvent event) { 3319 // From the root, only drag start/end/location are dispatched. entered/exited 3320 // are determined and dispatched by the viewgroup hierarchy, who then report 3321 // that back here for ultimate reporting back to the framework. 3322 if (mView != null && mAdded) { 3323 final int what = event.mAction; 3324 3325 if (what == DragEvent.ACTION_DRAG_EXITED) { 3326 // A direct EXITED event means that the window manager knows we've just crossed 3327 // a window boundary, so the current drag target within this one must have 3328 // just been exited. Send it the usual notifications and then we're done 3329 // for now. 3330 mView.dispatchDragEvent(event); 3331 } else { 3332 // Cache the drag description when the operation starts, then fill it in 3333 // on subsequent calls as a convenience 3334 if (what == DragEvent.ACTION_DRAG_STARTED) { 3335 mCurrentDragView = null; // Start the current-recipient tracking 3336 mDragDescription = event.mClipDescription; 3337 } else { 3338 event.mClipDescription = mDragDescription; 3339 } 3340 3341 // For events with a [screen] location, translate into window coordinates 3342 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3343 mDragPoint.set(event.mX, event.mY); 3344 if (mTranslator != null) { 3345 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3346 } 3347 3348 if (mCurScrollY != 0) { 3349 mDragPoint.offset(0, mCurScrollY); 3350 } 3351 3352 event.mX = mDragPoint.x; 3353 event.mY = mDragPoint.y; 3354 } 3355 3356 // Remember who the current drag target is pre-dispatch 3357 final View prevDragView = mCurrentDragView; 3358 3359 // Now dispatch the drag/drop event 3360 boolean result = mView.dispatchDragEvent(event); 3361 3362 // If we changed apparent drag target, tell the OS about it 3363 if (prevDragView != mCurrentDragView) { 3364 try { 3365 if (prevDragView != null) { 3366 sWindowSession.dragRecipientExited(mWindow); 3367 } 3368 if (mCurrentDragView != null) { 3369 sWindowSession.dragRecipientEntered(mWindow); 3370 } 3371 } catch (RemoteException e) { 3372 Slog.e(TAG, "Unable to note drag target change"); 3373 } 3374 } 3375 3376 // Report the drop result when we're done 3377 if (what == DragEvent.ACTION_DROP) { 3378 mDragDescription = null; 3379 try { 3380 Log.i(TAG, "Reporting drop result: " + result); 3381 sWindowSession.reportDropResult(mWindow, result); 3382 } catch (RemoteException e) { 3383 Log.e(TAG, "Unable to report drop result"); 3384 } 3385 } 3386 3387 // When the drag operation ends, release any local state object 3388 // that may have been in use 3389 if (what == DragEvent.ACTION_DRAG_ENDED) { 3390 setLocalDragState(null); 3391 } 3392 } 3393 } 3394 event.recycle(); 3395 } 3396 3397 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3398 if (mView == null) return; 3399 if (mAttachInfo != null) { 3400 mAttachInfo.mSystemUiVisibility = visibility; 3401 } 3402 mView.dispatchSystemUiVisibilityChanged(visibility); 3403 } 3404 3405 public void getLastTouchPoint(Point outLocation) { 3406 outLocation.x = (int) mLastTouchPoint.x; 3407 outLocation.y = (int) mLastTouchPoint.y; 3408 } 3409 3410 public void setDragFocus(View newDragTarget) { 3411 if (mCurrentDragView != newDragTarget) { 3412 mCurrentDragView = newDragTarget; 3413 } 3414 } 3415 3416 private AudioManager getAudioManager() { 3417 if (mView == null) { 3418 throw new IllegalStateException("getAudioManager called when there is no mView"); 3419 } 3420 if (mAudioManager == null) { 3421 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3422 } 3423 return mAudioManager; 3424 } 3425 3426 public AccessibilityInteractionController getAccessibilityInteractionController() { 3427 if (mView == null) { 3428 throw new IllegalStateException("getAccessibilityInteractionController" 3429 + " called when there is no mView"); 3430 } 3431 if (mAccessibilityInteractionContrtoller == null) { 3432 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3433 } 3434 return mAccessibilityInteractionContrtoller; 3435 } 3436 3437 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3438 boolean insetsPending) throws RemoteException { 3439 3440 float appScale = mAttachInfo.mApplicationScale; 3441 boolean restore = false; 3442 if (params != null && mTranslator != null) { 3443 restore = true; 3444 params.backup(); 3445 mTranslator.translateWindowLayout(params); 3446 } 3447 if (params != null) { 3448 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3449 } 3450 mPendingConfiguration.seq = 0; 3451 //Log.d(TAG, ">>>>>> CALLING relayout"); 3452 int relayoutResult = sWindowSession.relayout( 3453 mWindow, params, 3454 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3455 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3456 viewVisibility, insetsPending, mWinFrame, 3457 mPendingContentInsets, mPendingVisibleInsets, 3458 mPendingConfiguration, mSurface); 3459 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3460 if (restore) { 3461 params.restore(); 3462 } 3463 3464 if (mTranslator != null) { 3465 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3466 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3467 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3468 } 3469 return relayoutResult; 3470 } 3471 3472 /** 3473 * {@inheritDoc} 3474 */ 3475 public void playSoundEffect(int effectId) { 3476 checkThread(); 3477 3478 try { 3479 final AudioManager audioManager = getAudioManager(); 3480 3481 switch (effectId) { 3482 case SoundEffectConstants.CLICK: 3483 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3484 return; 3485 case SoundEffectConstants.NAVIGATION_DOWN: 3486 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3487 return; 3488 case SoundEffectConstants.NAVIGATION_LEFT: 3489 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3490 return; 3491 case SoundEffectConstants.NAVIGATION_RIGHT: 3492 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3493 return; 3494 case SoundEffectConstants.NAVIGATION_UP: 3495 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3496 return; 3497 default: 3498 throw new IllegalArgumentException("unknown effect id " + effectId + 3499 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3500 } 3501 } catch (IllegalStateException e) { 3502 // Exception thrown by getAudioManager() when mView is null 3503 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3504 e.printStackTrace(); 3505 } 3506 } 3507 3508 /** 3509 * {@inheritDoc} 3510 */ 3511 public boolean performHapticFeedback(int effectId, boolean always) { 3512 try { 3513 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3514 } catch (RemoteException e) { 3515 return false; 3516 } 3517 } 3518 3519 /** 3520 * {@inheritDoc} 3521 */ 3522 public View focusSearch(View focused, int direction) { 3523 checkThread(); 3524 if (!(mView instanceof ViewGroup)) { 3525 return null; 3526 } 3527 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3528 } 3529 3530 public void debug() { 3531 mView.debug(); 3532 } 3533 3534 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3535 if (mView != null) { 3536 getGfxInfo(mView, info); 3537 } else { 3538 info[0] = info[1] = 0; 3539 } 3540 } 3541 3542 private void getGfxInfo(View view, int[] info) { 3543 DisplayList displayList = view.mDisplayList; 3544 info[0]++; 3545 if (displayList != null) { 3546 info[1] += displayList.getSize(); 3547 } 3548 3549 if (view instanceof ViewGroup) { 3550 ViewGroup group = (ViewGroup) view; 3551 3552 int count = group.getChildCount(); 3553 for (int i = 0; i < count; i++) { 3554 getGfxInfo(group.getChildAt(i), info); 3555 } 3556 } 3557 } 3558 3559 public void die(boolean immediate) { 3560 if (immediate) { 3561 doDie(); 3562 } else { 3563 sendEmptyMessage(DIE); 3564 } 3565 } 3566 3567 void doDie() { 3568 checkThread(); 3569 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3570 synchronized (this) { 3571 if (mAdded && !mFirst) { 3572 destroyHardwareRenderer(); 3573 3574 int viewVisibility = mView.getVisibility(); 3575 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3576 if (mWindowAttributesChanged || viewVisibilityChanged) { 3577 // If layout params have been changed, first give them 3578 // to the window manager to make sure it has the correct 3579 // animation info. 3580 try { 3581 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3582 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3583 sWindowSession.finishDrawing(mWindow); 3584 } 3585 } catch (RemoteException e) { 3586 } 3587 } 3588 3589 mSurface.release(); 3590 } 3591 if (mAdded) { 3592 mAdded = false; 3593 dispatchDetachedFromWindow(); 3594 } 3595 } 3596 } 3597 3598 public void requestUpdateConfiguration(Configuration config) { 3599 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3600 sendMessage(msg); 3601 } 3602 3603 private void destroyHardwareRenderer() { 3604 if (mAttachInfo.mHardwareRenderer != null) { 3605 mAttachInfo.mHardwareRenderer.destroy(true); 3606 mAttachInfo.mHardwareRenderer = null; 3607 mAttachInfo.mHardwareAccelerated = false; 3608 } 3609 } 3610 3611 public void dispatchFinishedEvent(int seq, boolean handled) { 3612 Message msg = obtainMessage(FINISHED_EVENT); 3613 msg.arg1 = seq; 3614 msg.arg2 = handled ? 1 : 0; 3615 sendMessage(msg); 3616 } 3617 3618 public void dispatchResized(int w, int h, Rect coveredInsets, 3619 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3620 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3621 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3622 + " visibleInsets=" + visibleInsets.toShortString() 3623 + " reportDraw=" + reportDraw); 3624 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3625 if (mTranslator != null) { 3626 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3627 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3628 w *= mTranslator.applicationInvertedScale; 3629 h *= mTranslator.applicationInvertedScale; 3630 } 3631 msg.arg1 = w; 3632 msg.arg2 = h; 3633 ResizedInfo ri = new ResizedInfo(); 3634 ri.coveredInsets = new Rect(coveredInsets); 3635 ri.visibleInsets = new Rect(visibleInsets); 3636 ri.newConfig = newConfig; 3637 msg.obj = ri; 3638 sendMessage(msg); 3639 } 3640 3641 private long mInputEventReceiveTimeNanos; 3642 private long mInputEventDeliverTimeNanos; 3643 private long mInputEventDeliverPostImeTimeNanos; 3644 private InputQueue.FinishedCallback mFinishedCallback; 3645 3646 private final InputHandler mInputHandler = new InputHandler() { 3647 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3648 startInputEvent(finishedCallback); 3649 dispatchKey(event, true); 3650 } 3651 3652 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3653 startInputEvent(finishedCallback); 3654 dispatchMotion(event, true); 3655 } 3656 }; 3657 3658 public void dispatchKey(KeyEvent event) { 3659 dispatchKey(event, false); 3660 } 3661 3662 private void dispatchKey(KeyEvent event, boolean sendDone) { 3663 //noinspection ConstantConditions 3664 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3665 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3666 if (DBG) Log.d("keydisp", "==================================================="); 3667 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3668 3669 debug(); 3670 3671 if (DBG) Log.d("keydisp", "==================================================="); 3672 } 3673 } 3674 3675 Message msg = obtainMessage(DISPATCH_KEY); 3676 msg.obj = event; 3677 msg.arg1 = sendDone ? 1 : 0; 3678 3679 if (LOCAL_LOGV) Log.v( 3680 TAG, "sending key " + event + " to " + mView); 3681 3682 sendMessageAtTime(msg, event.getEventTime()); 3683 } 3684 3685 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3686 int source = event.getSource(); 3687 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3688 dispatchPointer(event, sendDone); 3689 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3690 dispatchTrackball(event, sendDone); 3691 } else { 3692 dispatchGenericMotion(event, sendDone); 3693 } 3694 } 3695 3696 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3697 Message msg = obtainMessage(DISPATCH_POINTER); 3698 msg.obj = event; 3699 msg.arg1 = sendDone ? 1 : 0; 3700 sendMessageAtTime(msg, event.getEventTime()); 3701 } 3702 3703 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3704 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3705 msg.obj = event; 3706 msg.arg1 = sendDone ? 1 : 0; 3707 sendMessageAtTime(msg, event.getEventTime()); 3708 } 3709 3710 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3711 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3712 msg.obj = event; 3713 msg.arg1 = sendDone ? 1 : 0; 3714 sendMessageAtTime(msg, event.getEventTime()); 3715 } 3716 3717 public void dispatchAppVisibility(boolean visible) { 3718 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3719 msg.arg1 = visible ? 1 : 0; 3720 sendMessage(msg); 3721 } 3722 3723 public void dispatchGetNewSurface() { 3724 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3725 sendMessage(msg); 3726 } 3727 3728 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3729 Message msg = Message.obtain(); 3730 msg.what = WINDOW_FOCUS_CHANGED; 3731 msg.arg1 = hasFocus ? 1 : 0; 3732 msg.arg2 = inTouchMode ? 1 : 0; 3733 sendMessage(msg); 3734 } 3735 3736 public void dispatchCloseSystemDialogs(String reason) { 3737 Message msg = Message.obtain(); 3738 msg.what = CLOSE_SYSTEM_DIALOGS; 3739 msg.obj = reason; 3740 sendMessage(msg); 3741 } 3742 3743 public void dispatchDragEvent(DragEvent event) { 3744 final int what; 3745 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3746 what = DISPATCH_DRAG_LOCATION_EVENT; 3747 removeMessages(what); 3748 } else { 3749 what = DISPATCH_DRAG_EVENT; 3750 } 3751 Message msg = obtainMessage(what, event); 3752 sendMessage(msg); 3753 } 3754 3755 public void dispatchSystemUiVisibilityChanged(int visibility) { 3756 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3757 } 3758 3759 /** 3760 * The window is getting focus so if there is anything focused/selected 3761 * send an {@link AccessibilityEvent} to announce that. 3762 */ 3763 private void sendAccessibilityEvents() { 3764 if (!mAccessibilityManager.isEnabled()) { 3765 return; 3766 } 3767 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3768 View focusedView = mView.findFocus(); 3769 if (focusedView != null && focusedView != mView) { 3770 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3771 } 3772 } 3773 3774 /** 3775 * Post a callback to send a 3776 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3777 * This event is send at most once every 3778 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3779 */ 3780 private void postSendWindowContentChangedCallback() { 3781 if (mSendWindowContentChangedAccessibilityEvent == null) { 3782 mSendWindowContentChangedAccessibilityEvent = 3783 new SendWindowContentChangedAccessibilityEvent(); 3784 } 3785 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3786 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3787 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3788 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3789 } 3790 } 3791 3792 /** 3793 * Remove a posted callback to send a 3794 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3795 */ 3796 private void removeSendWindowContentChangedCallback() { 3797 if (mSendWindowContentChangedAccessibilityEvent != null) { 3798 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3799 } 3800 } 3801 3802 public boolean showContextMenuForChild(View originalView) { 3803 return false; 3804 } 3805 3806 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3807 return null; 3808 } 3809 3810 public void createContextMenu(ContextMenu menu) { 3811 } 3812 3813 public void childDrawableStateChanged(View child) { 3814 } 3815 3816 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3817 if (mView == null) { 3818 return false; 3819 } 3820 mAccessibilityManager.sendAccessibilityEvent(event); 3821 return true; 3822 } 3823 3824 void checkThread() { 3825 if (mThread != Thread.currentThread()) { 3826 throw new CalledFromWrongThreadException( 3827 "Only the original thread that created a view hierarchy can touch its views."); 3828 } 3829 } 3830 3831 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3832 // ViewAncestor never intercepts touch event, so this can be a no-op 3833 } 3834 3835 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3836 boolean immediate) { 3837 return scrollToRectOrFocus(rectangle, immediate); 3838 } 3839 3840 class TakenSurfaceHolder extends BaseSurfaceHolder { 3841 @Override 3842 public boolean onAllowLockCanvas() { 3843 return mDrawingAllowed; 3844 } 3845 3846 @Override 3847 public void onRelayoutContainer() { 3848 // Not currently interesting -- from changing between fixed and layout size. 3849 } 3850 3851 public void setFormat(int format) { 3852 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3853 } 3854 3855 public void setType(int type) { 3856 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3857 } 3858 3859 @Override 3860 public void onUpdateSurface() { 3861 // We take care of format and type changes on our own. 3862 throw new IllegalStateException("Shouldn't be here"); 3863 } 3864 3865 public boolean isCreating() { 3866 return mIsCreating; 3867 } 3868 3869 @Override 3870 public void setFixedSize(int width, int height) { 3871 throw new UnsupportedOperationException( 3872 "Currently only support sizing from layout"); 3873 } 3874 3875 public void setKeepScreenOn(boolean screenOn) { 3876 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3877 } 3878 } 3879 3880 static class InputMethodCallback extends IInputMethodCallback.Stub { 3881 private WeakReference<ViewRootImpl> mViewAncestor; 3882 3883 public InputMethodCallback(ViewRootImpl viewAncestor) { 3884 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3885 } 3886 3887 public void finishedEvent(int seq, boolean handled) { 3888 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3889 if (viewAncestor != null) { 3890 viewAncestor.dispatchFinishedEvent(seq, handled); 3891 } 3892 } 3893 3894 public void sessionCreated(IInputMethodSession session) { 3895 // Stub -- not for use in the client. 3896 } 3897 } 3898 3899 static class W extends IWindow.Stub { 3900 private final WeakReference<ViewRootImpl> mViewAncestor; 3901 3902 W(ViewRootImpl viewAncestor) { 3903 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3904 } 3905 3906 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3907 boolean reportDraw, Configuration newConfig) { 3908 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3909 if (viewAncestor != null) { 3910 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3911 newConfig); 3912 } 3913 } 3914 3915 public void dispatchAppVisibility(boolean visible) { 3916 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3917 if (viewAncestor != null) { 3918 viewAncestor.dispatchAppVisibility(visible); 3919 } 3920 } 3921 3922 public void dispatchGetNewSurface() { 3923 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3924 if (viewAncestor != null) { 3925 viewAncestor.dispatchGetNewSurface(); 3926 } 3927 } 3928 3929 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3930 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3931 if (viewAncestor != null) { 3932 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3933 } 3934 } 3935 3936 private static int checkCallingPermission(String permission) { 3937 try { 3938 return ActivityManagerNative.getDefault().checkPermission( 3939 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3940 } catch (RemoteException e) { 3941 return PackageManager.PERMISSION_DENIED; 3942 } 3943 } 3944 3945 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3946 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3947 if (viewAncestor != null) { 3948 final View view = viewAncestor.mView; 3949 if (view != null) { 3950 if (checkCallingPermission(Manifest.permission.DUMP) != 3951 PackageManager.PERMISSION_GRANTED) { 3952 throw new SecurityException("Insufficient permissions to invoke" 3953 + " executeCommand() from pid=" + Binder.getCallingPid() 3954 + ", uid=" + Binder.getCallingUid()); 3955 } 3956 3957 OutputStream clientStream = null; 3958 try { 3959 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3960 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3961 } catch (IOException e) { 3962 e.printStackTrace(); 3963 } finally { 3964 if (clientStream != null) { 3965 try { 3966 clientStream.close(); 3967 } catch (IOException e) { 3968 e.printStackTrace(); 3969 } 3970 } 3971 } 3972 } 3973 } 3974 } 3975 3976 public void closeSystemDialogs(String reason) { 3977 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3978 if (viewAncestor != null) { 3979 viewAncestor.dispatchCloseSystemDialogs(reason); 3980 } 3981 } 3982 3983 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 3984 boolean sync) { 3985 if (sync) { 3986 try { 3987 sWindowSession.wallpaperOffsetsComplete(asBinder()); 3988 } catch (RemoteException e) { 3989 } 3990 } 3991 } 3992 3993 public void dispatchWallpaperCommand(String action, int x, int y, 3994 int z, Bundle extras, boolean sync) { 3995 if (sync) { 3996 try { 3997 sWindowSession.wallpaperCommandComplete(asBinder(), null); 3998 } catch (RemoteException e) { 3999 } 4000 } 4001 } 4002 4003 /* Drag/drop */ 4004 public void dispatchDragEvent(DragEvent event) { 4005 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4006 if (viewAncestor != null) { 4007 viewAncestor.dispatchDragEvent(event); 4008 } 4009 } 4010 4011 public void dispatchSystemUiVisibilityChanged(int visibility) { 4012 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4013 if (viewAncestor != null) { 4014 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4015 } 4016 } 4017 } 4018 4019 /** 4020 * Maintains state information for a single trackball axis, generating 4021 * discrete (DPAD) movements based on raw trackball motion. 4022 */ 4023 static final class TrackballAxis { 4024 /** 4025 * The maximum amount of acceleration we will apply. 4026 */ 4027 static final float MAX_ACCELERATION = 20; 4028 4029 /** 4030 * The maximum amount of time (in milliseconds) between events in order 4031 * for us to consider the user to be doing fast trackball movements, 4032 * and thus apply an acceleration. 4033 */ 4034 static final long FAST_MOVE_TIME = 150; 4035 4036 /** 4037 * Scaling factor to the time (in milliseconds) between events to how 4038 * much to multiple/divide the current acceleration. When movement 4039 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4040 * FAST_MOVE_TIME it divides it. 4041 */ 4042 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4043 4044 float position; 4045 float absPosition; 4046 float acceleration = 1; 4047 long lastMoveTime = 0; 4048 int step; 4049 int dir; 4050 int nonAccelMovement; 4051 4052 void reset(int _step) { 4053 position = 0; 4054 acceleration = 1; 4055 lastMoveTime = 0; 4056 step = _step; 4057 dir = 0; 4058 } 4059 4060 /** 4061 * Add trackball movement into the state. If the direction of movement 4062 * has been reversed, the state is reset before adding the 4063 * movement (so that you don't have to compensate for any previously 4064 * collected movement before see the result of the movement in the 4065 * new direction). 4066 * 4067 * @return Returns the absolute value of the amount of movement 4068 * collected so far. 4069 */ 4070 float collect(float off, long time, String axis) { 4071 long normTime; 4072 if (off > 0) { 4073 normTime = (long)(off * FAST_MOVE_TIME); 4074 if (dir < 0) { 4075 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4076 position = 0; 4077 step = 0; 4078 acceleration = 1; 4079 lastMoveTime = 0; 4080 } 4081 dir = 1; 4082 } else if (off < 0) { 4083 normTime = (long)((-off) * FAST_MOVE_TIME); 4084 if (dir > 0) { 4085 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4086 position = 0; 4087 step = 0; 4088 acceleration = 1; 4089 lastMoveTime = 0; 4090 } 4091 dir = -1; 4092 } else { 4093 normTime = 0; 4094 } 4095 4096 // The number of milliseconds between each movement that is 4097 // considered "normal" and will not result in any acceleration 4098 // or deceleration, scaled by the offset we have here. 4099 if (normTime > 0) { 4100 long delta = time - lastMoveTime; 4101 lastMoveTime = time; 4102 float acc = acceleration; 4103 if (delta < normTime) { 4104 // The user is scrolling rapidly, so increase acceleration. 4105 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4106 if (scale > 1) acc *= scale; 4107 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4108 + off + " normTime=" + normTime + " delta=" + delta 4109 + " scale=" + scale + " acc=" + acc); 4110 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4111 } else { 4112 // The user is scrolling slowly, so decrease acceleration. 4113 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4114 if (scale > 1) acc /= scale; 4115 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4116 + off + " normTime=" + normTime + " delta=" + delta 4117 + " scale=" + scale + " acc=" + acc); 4118 acceleration = acc > 1 ? acc : 1; 4119 } 4120 } 4121 position += off; 4122 return (absPosition = Math.abs(position)); 4123 } 4124 4125 /** 4126 * Generate the number of discrete movement events appropriate for 4127 * the currently collected trackball movement. 4128 * 4129 * @param precision The minimum movement required to generate the 4130 * first discrete movement. 4131 * 4132 * @return Returns the number of discrete movements, either positive 4133 * or negative, or 0 if there is not enough trackball movement yet 4134 * for a discrete movement. 4135 */ 4136 int generate(float precision) { 4137 int movement = 0; 4138 nonAccelMovement = 0; 4139 do { 4140 final int dir = position >= 0 ? 1 : -1; 4141 switch (step) { 4142 // If we are going to execute the first step, then we want 4143 // to do this as soon as possible instead of waiting for 4144 // a full movement, in order to make things look responsive. 4145 case 0: 4146 if (absPosition < precision) { 4147 return movement; 4148 } 4149 movement += dir; 4150 nonAccelMovement += dir; 4151 step = 1; 4152 break; 4153 // If we have generated the first movement, then we need 4154 // to wait for the second complete trackball motion before 4155 // generating the second discrete movement. 4156 case 1: 4157 if (absPosition < 2) { 4158 return movement; 4159 } 4160 movement += dir; 4161 nonAccelMovement += dir; 4162 position += dir > 0 ? -2 : 2; 4163 absPosition = Math.abs(position); 4164 step = 2; 4165 break; 4166 // After the first two, we generate discrete movements 4167 // consistently with the trackball, applying an acceleration 4168 // if the trackball is moving quickly. This is a simple 4169 // acceleration on top of what we already compute based 4170 // on how quickly the wheel is being turned, to apply 4171 // a longer increasing acceleration to continuous movement 4172 // in one direction. 4173 default: 4174 if (absPosition < 1) { 4175 return movement; 4176 } 4177 movement += dir; 4178 position += dir >= 0 ? -1 : 1; 4179 absPosition = Math.abs(position); 4180 float acc = acceleration; 4181 acc *= 1.1f; 4182 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4183 break; 4184 } 4185 } while (true); 4186 } 4187 } 4188 4189 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4190 public CalledFromWrongThreadException(String msg) { 4191 super(msg); 4192 } 4193 } 4194 4195 private SurfaceHolder mHolder = new SurfaceHolder() { 4196 // we only need a SurfaceHolder for opengl. it would be nice 4197 // to implement everything else though, especially the callback 4198 // support (opengl doesn't make use of it right now, but eventually 4199 // will). 4200 public Surface getSurface() { 4201 return mSurface; 4202 } 4203 4204 public boolean isCreating() { 4205 return false; 4206 } 4207 4208 public void addCallback(Callback callback) { 4209 } 4210 4211 public void removeCallback(Callback callback) { 4212 } 4213 4214 public void setFixedSize(int width, int height) { 4215 } 4216 4217 public void setSizeFromLayout() { 4218 } 4219 4220 public void setFormat(int format) { 4221 } 4222 4223 public void setType(int type) { 4224 } 4225 4226 public void setKeepScreenOn(boolean screenOn) { 4227 } 4228 4229 public Canvas lockCanvas() { 4230 return null; 4231 } 4232 4233 public Canvas lockCanvas(Rect dirty) { 4234 return null; 4235 } 4236 4237 public void unlockCanvasAndPost(Canvas canvas) { 4238 } 4239 public Rect getSurfaceFrame() { 4240 return null; 4241 } 4242 }; 4243 4244 static RunQueue getRunQueue() { 4245 RunQueue rq = sRunQueues.get(); 4246 if (rq != null) { 4247 return rq; 4248 } 4249 rq = new RunQueue(); 4250 sRunQueues.set(rq); 4251 return rq; 4252 } 4253 4254 /** 4255 * @hide 4256 */ 4257 static final class RunQueue { 4258 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4259 4260 void post(Runnable action) { 4261 postDelayed(action, 0); 4262 } 4263 4264 void postDelayed(Runnable action, long delayMillis) { 4265 HandlerAction handlerAction = new HandlerAction(); 4266 handlerAction.action = action; 4267 handlerAction.delay = delayMillis; 4268 4269 synchronized (mActions) { 4270 mActions.add(handlerAction); 4271 } 4272 } 4273 4274 void removeCallbacks(Runnable action) { 4275 final HandlerAction handlerAction = new HandlerAction(); 4276 handlerAction.action = action; 4277 4278 synchronized (mActions) { 4279 final ArrayList<HandlerAction> actions = mActions; 4280 4281 while (actions.remove(handlerAction)) { 4282 // Keep going 4283 } 4284 } 4285 } 4286 4287 void executeActions(Handler handler) { 4288 synchronized (mActions) { 4289 final ArrayList<HandlerAction> actions = mActions; 4290 final int count = actions.size(); 4291 4292 for (int i = 0; i < count; i++) { 4293 final HandlerAction handlerAction = actions.get(i); 4294 handler.postDelayed(handlerAction.action, handlerAction.delay); 4295 } 4296 4297 actions.clear(); 4298 } 4299 } 4300 4301 private static class HandlerAction { 4302 Runnable action; 4303 long delay; 4304 4305 @Override 4306 public boolean equals(Object o) { 4307 if (this == o) return true; 4308 if (o == null || getClass() != o.getClass()) return false; 4309 4310 HandlerAction that = (HandlerAction) o; 4311 return !(action != null ? !action.equals(that.action) : that.action != null); 4312 4313 } 4314 4315 @Override 4316 public int hashCode() { 4317 int result = action != null ? action.hashCode() : 0; 4318 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4319 return result; 4320 } 4321 } 4322 } 4323 4324 /** 4325 * Class for managing the accessibility interaction connection 4326 * based on the global accessibility state. 4327 */ 4328 final class AccessibilityInteractionConnectionManager 4329 implements AccessibilityStateChangeListener { 4330 public void onAccessibilityStateChanged(boolean enabled) { 4331 if (enabled) { 4332 ensureConnection(); 4333 } else { 4334 ensureNoConnection(); 4335 } 4336 } 4337 4338 public void ensureConnection() { 4339 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4340 if (!registered) { 4341 mAttachInfo.mAccessibilityWindowId = 4342 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4343 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4344 } 4345 } 4346 4347 public void ensureNoConnection() { 4348 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4349 if (registered) { 4350 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4351 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4352 } 4353 } 4354 } 4355 4356 /** 4357 * This class is an interface this ViewAncestor provides to the 4358 * AccessibilityManagerService to the latter can interact with 4359 * the view hierarchy in this ViewAncestor. 4360 */ 4361 final class AccessibilityInteractionConnection 4362 extends IAccessibilityInteractionConnection.Stub { 4363 private final WeakReference<ViewRootImpl> mViewAncestor; 4364 4365 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4366 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4367 } 4368 4369 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4370 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4371 int interrogatingPid, long interrogatingTid) { 4372 if (mViewAncestor.get() != null) { 4373 getAccessibilityInteractionController() 4374 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4375 interactionId, callback, interrogatingPid, interrogatingTid); 4376 } 4377 } 4378 4379 public void performAccessibilityAction(int accessibilityId, int action, 4380 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4381 int interogatingPid, long interrogatingTid) { 4382 if (mViewAncestor.get() != null) { 4383 getAccessibilityInteractionController() 4384 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4385 callback, interogatingPid, interrogatingTid); 4386 } 4387 } 4388 4389 public void findAccessibilityNodeInfoByViewId(int viewId, 4390 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4391 int interrogatingPid, long interrogatingTid) { 4392 if (mViewAncestor.get() != null) { 4393 getAccessibilityInteractionController() 4394 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4395 interrogatingPid, interrogatingTid); 4396 } 4397 } 4398 4399 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4400 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4401 int interrogatingPid, long interrogatingTid) { 4402 if (mViewAncestor.get() != null) { 4403 getAccessibilityInteractionController() 4404 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4405 interactionId, callback, interrogatingPid, interrogatingTid); 4406 } 4407 } 4408 } 4409 4410 /** 4411 * Class for managing accessibility interactions initiated from the system 4412 * and targeting the view hierarchy. A *ClientThread method is to be 4413 * called from the interaction connection this ViewAncestor gives the 4414 * system to talk to it and a corresponding *UiThread method that is executed 4415 * on the UI thread. 4416 */ 4417 final class AccessibilityInteractionController { 4418 private static final int POOL_SIZE = 5; 4419 4420 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4421 new FindByAccessibilitytIdPredicate(); 4422 4423 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4424 new ArrayList<AccessibilityNodeInfo>(); 4425 4426 // Reusable poolable arguments for interacting with the view hierarchy 4427 // to fit more arguments than Message and to avoid sharing objects between 4428 // two messages since several threads can send messages concurrently. 4429 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4430 new PoolableManager<SomeArgs>() { 4431 public SomeArgs newInstance() { 4432 return new SomeArgs(); 4433 } 4434 4435 public void onAcquired(SomeArgs info) { 4436 /* do nothing */ 4437 } 4438 4439 public void onReleased(SomeArgs info) { 4440 info.clear(); 4441 } 4442 }, POOL_SIZE) 4443 ); 4444 4445 public class SomeArgs implements Poolable<SomeArgs> { 4446 private SomeArgs mNext; 4447 private boolean mIsPooled; 4448 4449 public Object arg1; 4450 public Object arg2; 4451 public int argi1; 4452 public int argi2; 4453 public int argi3; 4454 4455 public SomeArgs getNextPoolable() { 4456 return mNext; 4457 } 4458 4459 public boolean isPooled() { 4460 return mIsPooled; 4461 } 4462 4463 public void setNextPoolable(SomeArgs args) { 4464 mNext = args; 4465 } 4466 4467 public void setPooled(boolean isPooled) { 4468 mIsPooled = isPooled; 4469 } 4470 4471 private void clear() { 4472 arg1 = null; 4473 arg2 = null; 4474 argi1 = 0; 4475 argi2 = 0; 4476 argi3 = 0; 4477 } 4478 } 4479 4480 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4481 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4482 int interrogatingPid, long interrogatingTid) { 4483 Message message = Message.obtain(); 4484 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4485 message.arg1 = accessibilityId; 4486 message.arg2 = interactionId; 4487 message.obj = callback; 4488 // If the interrogation is performed by the same thread as the main UI 4489 // thread in this process, set the message as a static reference so 4490 // after this call completes the same thread but in the interrogating 4491 // client can handle the message to generate the result. 4492 if (interrogatingPid == Process.myPid() 4493 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4494 message.setTarget(ViewRootImpl.this); 4495 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4496 } else { 4497 sendMessage(message); 4498 } 4499 } 4500 4501 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4502 final int accessibilityId = message.arg1; 4503 final int interactionId = message.arg2; 4504 final IAccessibilityInteractionConnectionCallback callback = 4505 (IAccessibilityInteractionConnectionCallback) message.obj; 4506 4507 AccessibilityNodeInfo info = null; 4508 try { 4509 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4510 predicate.init(accessibilityId); 4511 View root = ViewRootImpl.this.mView; 4512 View target = root.findViewByPredicate(predicate); 4513 if (target != null && target.isShown()) { 4514 info = target.createAccessibilityNodeInfo(); 4515 } 4516 } finally { 4517 try { 4518 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4519 } catch (RemoteException re) { 4520 /* ignore - the other side will time out */ 4521 } 4522 } 4523 } 4524 4525 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4526 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4527 long interrogatingTid) { 4528 Message message = Message.obtain(); 4529 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4530 message.arg1 = viewId; 4531 message.arg2 = interactionId; 4532 message.obj = callback; 4533 // If the interrogation is performed by the same thread as the main UI 4534 // thread in this process, set the message as a static reference so 4535 // after this call completes the same thread but in the interrogating 4536 // client can handle the message to generate the result. 4537 if (interrogatingPid == Process.myPid() 4538 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4539 message.setTarget(ViewRootImpl.this); 4540 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4541 } else { 4542 sendMessage(message); 4543 } 4544 } 4545 4546 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4547 final int viewId = message.arg1; 4548 final int interactionId = message.arg2; 4549 final IAccessibilityInteractionConnectionCallback callback = 4550 (IAccessibilityInteractionConnectionCallback) message.obj; 4551 4552 AccessibilityNodeInfo info = null; 4553 try { 4554 View root = ViewRootImpl.this.mView; 4555 View target = root.findViewById(viewId); 4556 if (target != null && target.isShown()) { 4557 info = target.createAccessibilityNodeInfo(); 4558 } 4559 } finally { 4560 try { 4561 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4562 } catch (RemoteException re) { 4563 /* ignore - the other side will time out */ 4564 } 4565 } 4566 } 4567 4568 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4569 int accessibilityViewId, int interactionId, 4570 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4571 long interrogatingTid) { 4572 Message message = Message.obtain(); 4573 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4574 SomeArgs args = mPool.acquire(); 4575 args.arg1 = text; 4576 args.argi1 = accessibilityViewId; 4577 args.argi2 = interactionId; 4578 args.arg2 = callback; 4579 message.obj = args; 4580 // If the interrogation is performed by the same thread as the main UI 4581 // thread in this process, set the message as a static reference so 4582 // after this call completes the same thread but in the interrogating 4583 // client can handle the message to generate the result. 4584 if (interrogatingPid == Process.myPid() 4585 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4586 message.setTarget(ViewRootImpl.this); 4587 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4588 } else { 4589 sendMessage(message); 4590 } 4591 } 4592 4593 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4594 SomeArgs args = (SomeArgs) message.obj; 4595 final String text = (String) args.arg1; 4596 final int accessibilityViewId = args.argi1; 4597 final int interactionId = args.argi2; 4598 final IAccessibilityInteractionConnectionCallback callback = 4599 (IAccessibilityInteractionConnectionCallback) args.arg2; 4600 mPool.release(args); 4601 4602 List<AccessibilityNodeInfo> infos = null; 4603 try { 4604 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4605 foundViews.clear(); 4606 4607 View root; 4608 if (accessibilityViewId != View.NO_ID) { 4609 root = findViewByAccessibilityId(accessibilityViewId); 4610 } else { 4611 root = ViewRootImpl.this.mView; 4612 } 4613 4614 if (root == null || !root.isShown()) { 4615 return; 4616 } 4617 4618 root.findViewsWithText(foundViews, text); 4619 if (foundViews.isEmpty()) { 4620 return; 4621 } 4622 4623 infos = mTempAccessibilityNodeInfoList; 4624 infos.clear(); 4625 4626 final int viewCount = foundViews.size(); 4627 for (int i = 0; i < viewCount; i++) { 4628 View foundView = foundViews.get(i); 4629 if (foundView.isShown()) { 4630 infos.add(foundView.createAccessibilityNodeInfo()); 4631 } 4632 } 4633 } finally { 4634 try { 4635 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4636 } catch (RemoteException re) { 4637 /* ignore - the other side will time out */ 4638 } 4639 } 4640 } 4641 4642 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4643 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4644 int interogatingPid, long interrogatingTid) { 4645 Message message = Message.obtain(); 4646 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4647 SomeArgs args = mPool.acquire(); 4648 args.argi1 = accessibilityId; 4649 args.argi2 = action; 4650 args.argi3 = interactionId; 4651 args.arg1 = callback; 4652 message.obj = args; 4653 // If the interrogation is performed by the same thread as the main UI 4654 // thread in this process, set the message as a static reference so 4655 // after this call completes the same thread but in the interrogating 4656 // client can handle the message to generate the result. 4657 if (interogatingPid == Process.myPid() 4658 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4659 message.setTarget(ViewRootImpl.this); 4660 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4661 } else { 4662 sendMessage(message); 4663 } 4664 } 4665 4666 public void perfromAccessibilityActionUiThread(Message message) { 4667 SomeArgs args = (SomeArgs) message.obj; 4668 final int accessibilityId = args.argi1; 4669 final int action = args.argi2; 4670 final int interactionId = args.argi3; 4671 final IAccessibilityInteractionConnectionCallback callback = 4672 (IAccessibilityInteractionConnectionCallback) args.arg1; 4673 mPool.release(args); 4674 4675 boolean succeeded = false; 4676 try { 4677 switch (action) { 4678 case AccessibilityNodeInfo.ACTION_FOCUS: { 4679 succeeded = performActionFocus(accessibilityId); 4680 } break; 4681 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4682 succeeded = performActionClearFocus(accessibilityId); 4683 } break; 4684 case AccessibilityNodeInfo.ACTION_SELECT: { 4685 succeeded = performActionSelect(accessibilityId); 4686 } break; 4687 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4688 succeeded = performActionClearSelection(accessibilityId); 4689 } break; 4690 } 4691 } finally { 4692 try { 4693 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4694 } catch (RemoteException re) { 4695 /* ignore - the other side will time out */ 4696 } 4697 } 4698 } 4699 4700 private boolean performActionFocus(int accessibilityId) { 4701 View target = findViewByAccessibilityId(accessibilityId); 4702 if (target == null) { 4703 return false; 4704 } 4705 // Get out of touch mode since accessibility wants to move focus around. 4706 ensureTouchMode(false); 4707 return target.requestFocus(); 4708 } 4709 4710 private boolean performActionClearFocus(int accessibilityId) { 4711 View target = findViewByAccessibilityId(accessibilityId); 4712 if (target == null) { 4713 return false; 4714 } 4715 if (!target.isFocused()) { 4716 return false; 4717 } 4718 target.clearFocus(); 4719 return !target.isFocused(); 4720 } 4721 4722 private boolean performActionSelect(int accessibilityId) { 4723 View target = findViewByAccessibilityId(accessibilityId); 4724 if (target == null) { 4725 return false; 4726 } 4727 if (target.isSelected()) { 4728 return false; 4729 } 4730 target.setSelected(true); 4731 return target.isSelected(); 4732 } 4733 4734 private boolean performActionClearSelection(int accessibilityId) { 4735 View target = findViewByAccessibilityId(accessibilityId); 4736 if (target == null) { 4737 return false; 4738 } 4739 if (!target.isSelected()) { 4740 return false; 4741 } 4742 target.setSelected(false); 4743 return !target.isSelected(); 4744 } 4745 4746 private View findViewByAccessibilityId(int accessibilityId) { 4747 View root = ViewRootImpl.this.mView; 4748 if (root == null) { 4749 return null; 4750 } 4751 mFindByAccessibilityIdPredicate.init(accessibilityId); 4752 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4753 return (foundView != null && foundView.isShown()) ? foundView : null; 4754 } 4755 4756 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4757 public int mSerchedId; 4758 4759 public void init(int searchedId) { 4760 mSerchedId = searchedId; 4761 } 4762 4763 public boolean apply(View view) { 4764 return (view.getAccessibilityViewId() == mSerchedId); 4765 } 4766 } 4767 } 4768 4769 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4770 public volatile boolean mIsPending; 4771 4772 public void run() { 4773 if (mView != null) { 4774 // Check again for accessibility state since this is executed delayed. 4775 AccessibilityManager accessibilityManager = 4776 AccessibilityManager.getInstance(mView.mContext); 4777 if (accessibilityManager.isEnabled()) { 4778 // Send the event directly since we do not want to append the 4779 // source text because this is the text for the entire window 4780 // and we just want to notify that the content has changed. 4781 AccessibilityEvent event = AccessibilityEvent.obtain( 4782 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4783 mView.onInitializeAccessibilityEvent(event); 4784 accessibilityManager.sendAccessibilityEvent(event); 4785 } 4786 mIsPending = false; 4787 } 4788 } 4789 } 4790} 4791