ViewRootImpl.java revision 3c4ce72c4d66d9ee041924259f20381b658c1529
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 // If we're not drawing, then we don't need to draw the transitions, either 1603 if (mPendingTransitions != null) { 1604 mPendingTransitions.clear(); 1605 } 1606 1607 // We were supposed to report when we are done drawing. Since we canceled the 1608 // draw, remember it here. 1609 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1610 mReportNextDraw = true; 1611 } 1612 if (fullRedrawNeeded) { 1613 mFullRedrawNeeded = true; 1614 } 1615 1616 if (viewVisibility == View.VISIBLE) { 1617 // Try again 1618 scheduleTraversals(); 1619 } 1620 } 1621 } 1622 1623 public void requestTransparentRegion(View child) { 1624 // the test below should not fail unless someone is messing with us 1625 checkThread(); 1626 if (mView == child) { 1627 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1628 // Need to make sure we re-evaluate the window attributes next 1629 // time around, to ensure the window has the correct format. 1630 mWindowAttributesChanged = true; 1631 requestLayout(); 1632 } 1633 } 1634 1635 /** 1636 * Figures out the measure spec for the root view in a window based on it's 1637 * layout params. 1638 * 1639 * @param windowSize 1640 * The available width or height of the window 1641 * 1642 * @param rootDimension 1643 * The layout params for one dimension (width or height) of the 1644 * window. 1645 * 1646 * @return The measure spec to use to measure the root view. 1647 */ 1648 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1649 int measureSpec; 1650 switch (rootDimension) { 1651 1652 case ViewGroup.LayoutParams.MATCH_PARENT: 1653 // Window can't resize. Force root view to be windowSize. 1654 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1655 break; 1656 case ViewGroup.LayoutParams.WRAP_CONTENT: 1657 // Window can resize. Set max size for root view. 1658 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1659 break; 1660 default: 1661 // Window wants to be an exact size. Force root view to be that size. 1662 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1663 break; 1664 } 1665 return measureSpec; 1666 } 1667 1668 int mHardwareYOffset; 1669 int mResizeAlpha; 1670 final Paint mResizePaint = new Paint(); 1671 1672 public void onHardwarePreDraw(HardwareCanvas canvas) { 1673 canvas.translate(0, -mHardwareYOffset); 1674 } 1675 1676 public void onHardwarePostDraw(HardwareCanvas canvas) { 1677 if (mResizeBuffer != null) { 1678 mResizePaint.setAlpha(mResizeAlpha); 1679 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1680 } 1681 } 1682 1683 /** 1684 * @hide 1685 */ 1686 void outputDisplayList(View view) { 1687 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1688 DisplayList displayList = view.getDisplayList(); 1689 if (displayList != null) { 1690 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1691 } 1692 } 1693 } 1694 1695 /** 1696 * @see #PROPERTY_PROFILE_RENDERING 1697 */ 1698 private void profileRendering(boolean enabled) { 1699 if (mProfileRendering) { 1700 mRenderProfilingEnabled = enabled; 1701 if (mRenderProfiler == null) { 1702 mRenderProfiler = new Thread(new Runnable() { 1703 @Override 1704 public void run() { 1705 Log.d(TAG, "Starting profiling thread"); 1706 while (mRenderProfilingEnabled) { 1707 mAttachInfo.mHandler.post(new Runnable() { 1708 @Override 1709 public void run() { 1710 mDirty.set(0, 0, mWidth, mHeight); 1711 scheduleTraversals(); 1712 } 1713 }); 1714 try { 1715 // TODO: This should use vsync when we get an API 1716 Thread.sleep(15); 1717 } catch (InterruptedException e) { 1718 Log.d(TAG, "Exiting profiling thread"); 1719 } 1720 } 1721 } 1722 }, "Rendering Profiler"); 1723 mRenderProfiler.start(); 1724 } else { 1725 mRenderProfiler.interrupt(); 1726 mRenderProfiler = null; 1727 } 1728 } 1729 } 1730 1731 private void draw(boolean fullRedrawNeeded) { 1732 Surface surface = mSurface; 1733 if (surface == null || !surface.isValid()) { 1734 return; 1735 } 1736 1737 if (!sFirstDrawComplete) { 1738 synchronized (sFirstDrawHandlers) { 1739 sFirstDrawComplete = true; 1740 final int count = sFirstDrawHandlers.size(); 1741 for (int i = 0; i< count; i++) { 1742 post(sFirstDrawHandlers.get(i)); 1743 } 1744 } 1745 } 1746 1747 scrollToRectOrFocus(null, false); 1748 1749 if (mAttachInfo.mViewScrollChanged) { 1750 mAttachInfo.mViewScrollChanged = false; 1751 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1752 } 1753 1754 int yoff; 1755 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1756 if (animating) { 1757 yoff = mScroller.getCurrY(); 1758 } else { 1759 yoff = mScrollY; 1760 } 1761 if (mCurScrollY != yoff) { 1762 mCurScrollY = yoff; 1763 fullRedrawNeeded = true; 1764 } 1765 float appScale = mAttachInfo.mApplicationScale; 1766 boolean scalingRequired = mAttachInfo.mScalingRequired; 1767 1768 int resizeAlpha = 0; 1769 if (mResizeBuffer != null) { 1770 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1771 if (deltaTime < mResizeBufferDuration) { 1772 float amt = deltaTime/(float) mResizeBufferDuration; 1773 amt = mResizeInterpolator.getInterpolation(amt); 1774 animating = true; 1775 resizeAlpha = 255 - (int)(amt*255); 1776 } else { 1777 disposeResizeBuffer(); 1778 } 1779 } 1780 1781 Rect dirty = mDirty; 1782 if (mSurfaceHolder != null) { 1783 // The app owns the surface, we won't draw. 1784 dirty.setEmpty(); 1785 if (animating) { 1786 if (mScroller != null) { 1787 mScroller.abortAnimation(); 1788 } 1789 disposeResizeBuffer(); 1790 } 1791 return; 1792 } 1793 1794 if (fullRedrawNeeded) { 1795 mAttachInfo.mIgnoreDirtyState = true; 1796 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1797 } 1798 1799 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1800 if (!dirty.isEmpty() || mIsAnimating) { 1801 mIsAnimating = false; 1802 mHardwareYOffset = yoff; 1803 mResizeAlpha = resizeAlpha; 1804 1805 mCurrentDirty.set(dirty); 1806 mCurrentDirty.union(mPreviousDirty); 1807 mPreviousDirty.set(dirty); 1808 dirty.setEmpty(); 1809 1810 Rect currentDirty = mCurrentDirty; 1811 if (animating) { 1812 currentDirty = null; 1813 } 1814 1815 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1816 mPreviousDirty.set(0, 0, mWidth, mHeight); 1817 } 1818 } 1819 1820 if (animating) { 1821 mFullRedrawNeeded = true; 1822 scheduleTraversals(); 1823 } 1824 1825 return; 1826 } 1827 1828 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1829 Log.v(TAG, "Draw " + mView + "/" 1830 + mWindowAttributes.getTitle() 1831 + ": dirty={" + dirty.left + "," + dirty.top 1832 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1833 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1834 appScale + ", width=" + mWidth + ", height=" + mHeight); 1835 } 1836 1837 if (!dirty.isEmpty() || mIsAnimating) { 1838 Canvas canvas; 1839 try { 1840 int left = dirty.left; 1841 int top = dirty.top; 1842 int right = dirty.right; 1843 int bottom = dirty.bottom; 1844 1845 final long lockCanvasStartTime; 1846 if (ViewDebug.DEBUG_LATENCY) { 1847 lockCanvasStartTime = System.nanoTime(); 1848 } 1849 1850 canvas = surface.lockCanvas(dirty); 1851 1852 if (ViewDebug.DEBUG_LATENCY) { 1853 long now = System.nanoTime(); 1854 Log.d(TAG, "Latency: Spent " 1855 + ((now - lockCanvasStartTime) * 0.000001f) 1856 + "ms waiting for surface.lockCanvas()"); 1857 } 1858 1859 if (left != dirty.left || top != dirty.top || right != dirty.right || 1860 bottom != dirty.bottom) { 1861 mAttachInfo.mIgnoreDirtyState = true; 1862 } 1863 1864 // TODO: Do this in native 1865 canvas.setDensity(mDensity); 1866 } catch (Surface.OutOfResourcesException e) { 1867 Log.e(TAG, "OutOfResourcesException locking surface", e); 1868 try { 1869 if (!sWindowSession.outOfMemory(mWindow)) { 1870 Slog.w(TAG, "No processes killed for memory; killing self"); 1871 Process.killProcess(Process.myPid()); 1872 } 1873 } catch (RemoteException ex) { 1874 } 1875 mLayoutRequested = true; // ask wm for a new surface next time. 1876 return; 1877 } catch (IllegalArgumentException e) { 1878 Log.e(TAG, "IllegalArgumentException locking surface", e); 1879 // Don't assume this is due to out of memory, it could be 1880 // something else, and if it is something else then we could 1881 // kill stuff (or ourself) for no reason. 1882 mLayoutRequested = true; // ask wm for a new surface next time. 1883 return; 1884 } 1885 1886 try { 1887 if (!dirty.isEmpty() || mIsAnimating) { 1888 long startTime = 0L; 1889 1890 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1891 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1892 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1893 //canvas.drawARGB(255, 255, 0, 0); 1894 } 1895 1896 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1897 startTime = SystemClock.elapsedRealtime(); 1898 } 1899 1900 // If this bitmap's format includes an alpha channel, we 1901 // need to clear it before drawing so that the child will 1902 // properly re-composite its drawing on a transparent 1903 // background. This automatically respects the clip/dirty region 1904 // or 1905 // If we are applying an offset, we need to clear the area 1906 // where the offset doesn't appear to avoid having garbage 1907 // left in the blank areas. 1908 if (!canvas.isOpaque() || yoff != 0) { 1909 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1910 } 1911 1912 dirty.setEmpty(); 1913 mIsAnimating = false; 1914 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1915 mView.mPrivateFlags |= View.DRAWN; 1916 1917 if (DEBUG_DRAW) { 1918 Context cxt = mView.getContext(); 1919 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1920 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1921 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1922 } 1923 try { 1924 canvas.translate(0, -yoff); 1925 if (mTranslator != null) { 1926 mTranslator.translateCanvas(canvas); 1927 } 1928 canvas.setScreenDensity(scalingRequired 1929 ? DisplayMetrics.DENSITY_DEVICE : 0); 1930 mAttachInfo.mSetIgnoreDirtyState = false; 1931 mView.draw(canvas); 1932 } finally { 1933 if (!mAttachInfo.mSetIgnoreDirtyState) { 1934 // Only clear the flag if it was not set during the mView.draw() call 1935 mAttachInfo.mIgnoreDirtyState = false; 1936 } 1937 } 1938 1939 if (false && ViewDebug.consistencyCheckEnabled) { 1940 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1941 } 1942 1943 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1944 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1945 } 1946 } 1947 1948 } finally { 1949 surface.unlockCanvasAndPost(canvas); 1950 } 1951 } 1952 1953 if (LOCAL_LOGV) { 1954 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1955 } 1956 1957 if (animating) { 1958 mFullRedrawNeeded = true; 1959 scheduleTraversals(); 1960 } 1961 } 1962 1963 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1964 final View.AttachInfo attachInfo = mAttachInfo; 1965 final Rect ci = attachInfo.mContentInsets; 1966 final Rect vi = attachInfo.mVisibleInsets; 1967 int scrollY = 0; 1968 boolean handled = false; 1969 1970 if (vi.left > ci.left || vi.top > ci.top 1971 || vi.right > ci.right || vi.bottom > ci.bottom) { 1972 // We'll assume that we aren't going to change the scroll 1973 // offset, since we want to avoid that unless it is actually 1974 // going to make the focus visible... otherwise we scroll 1975 // all over the place. 1976 scrollY = mScrollY; 1977 // We can be called for two different situations: during a draw, 1978 // to update the scroll position if the focus has changed (in which 1979 // case 'rectangle' is null), or in response to a 1980 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1981 // is non-null and we just want to scroll to whatever that 1982 // rectangle is). 1983 View focus = mRealFocusedView; 1984 1985 // When in touch mode, focus points to the previously focused view, 1986 // which may have been removed from the view hierarchy. The following 1987 // line checks whether the view is still in our hierarchy. 1988 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1989 mRealFocusedView = null; 1990 return false; 1991 } 1992 1993 if (focus != mLastScrolledFocus) { 1994 // If the focus has changed, then ignore any requests to scroll 1995 // to a rectangle; first we want to make sure the entire focus 1996 // view is visible. 1997 rectangle = null; 1998 } 1999 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2000 + " rectangle=" + rectangle + " ci=" + ci 2001 + " vi=" + vi); 2002 if (focus == mLastScrolledFocus && !mScrollMayChange 2003 && rectangle == null) { 2004 // Optimization: if the focus hasn't changed since last 2005 // time, and no layout has happened, then just leave things 2006 // as they are. 2007 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2008 + mScrollY + " vi=" + vi.toShortString()); 2009 } else if (focus != null) { 2010 // We need to determine if the currently focused view is 2011 // within the visible part of the window and, if not, apply 2012 // a pan so it can be seen. 2013 mLastScrolledFocus = focus; 2014 mScrollMayChange = false; 2015 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2016 // Try to find the rectangle from the focus view. 2017 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2018 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2019 + mView.getWidth() + " h=" + mView.getHeight() 2020 + " ci=" + ci.toShortString() 2021 + " vi=" + vi.toShortString()); 2022 if (rectangle == null) { 2023 focus.getFocusedRect(mTempRect); 2024 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2025 + ": focusRect=" + mTempRect.toShortString()); 2026 if (mView instanceof ViewGroup) { 2027 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2028 focus, mTempRect); 2029 } 2030 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2031 "Focus in window: focusRect=" 2032 + mTempRect.toShortString() 2033 + " visRect=" + mVisRect.toShortString()); 2034 } else { 2035 mTempRect.set(rectangle); 2036 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2037 "Request scroll to rect: " 2038 + mTempRect.toShortString() 2039 + " visRect=" + mVisRect.toShortString()); 2040 } 2041 if (mTempRect.intersect(mVisRect)) { 2042 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2043 "Focus window visible rect: " 2044 + mTempRect.toShortString()); 2045 if (mTempRect.height() > 2046 (mView.getHeight()-vi.top-vi.bottom)) { 2047 // If the focus simply is not going to fit, then 2048 // best is probably just to leave things as-is. 2049 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2050 "Too tall; leaving scrollY=" + scrollY); 2051 } else if ((mTempRect.top-scrollY) < vi.top) { 2052 scrollY -= vi.top - (mTempRect.top-scrollY); 2053 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2054 "Top covered; scrollY=" + scrollY); 2055 } else if ((mTempRect.bottom-scrollY) 2056 > (mView.getHeight()-vi.bottom)) { 2057 scrollY += (mTempRect.bottom-scrollY) 2058 - (mView.getHeight()-vi.bottom); 2059 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2060 "Bottom covered; scrollY=" + scrollY); 2061 } 2062 handled = true; 2063 } 2064 } 2065 } 2066 } 2067 2068 if (scrollY != mScrollY) { 2069 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2070 + mScrollY + " , new=" + scrollY); 2071 if (!immediate && mResizeBuffer == null) { 2072 if (mScroller == null) { 2073 mScroller = new Scroller(mView.getContext()); 2074 } 2075 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2076 } else if (mScroller != null) { 2077 mScroller.abortAnimation(); 2078 } 2079 mScrollY = scrollY; 2080 } 2081 2082 return handled; 2083 } 2084 2085 public void requestChildFocus(View child, View focused) { 2086 checkThread(); 2087 if (mFocusedView != focused) { 2088 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2089 scheduleTraversals(); 2090 } 2091 mFocusedView = mRealFocusedView = focused; 2092 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2093 + mFocusedView); 2094 } 2095 2096 public void clearChildFocus(View child) { 2097 checkThread(); 2098 2099 View oldFocus = mFocusedView; 2100 2101 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2102 mFocusedView = mRealFocusedView = null; 2103 if (mView != null && !mView.hasFocus()) { 2104 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2105 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2106 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2107 } 2108 } else if (oldFocus != null) { 2109 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2110 } 2111 } 2112 2113 2114 public void focusableViewAvailable(View v) { 2115 checkThread(); 2116 2117 if (mView != null) { 2118 if (!mView.hasFocus()) { 2119 v.requestFocus(); 2120 } else { 2121 // the one case where will transfer focus away from the current one 2122 // is if the current view is a view group that prefers to give focus 2123 // to its children first AND the view is a descendant of it. 2124 mFocusedView = mView.findFocus(); 2125 boolean descendantsHaveDibsOnFocus = 2126 (mFocusedView instanceof ViewGroup) && 2127 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2128 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2129 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2130 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2131 v.requestFocus(); 2132 } 2133 } 2134 } 2135 } 2136 2137 public void recomputeViewAttributes(View child) { 2138 checkThread(); 2139 if (mView == child) { 2140 mAttachInfo.mRecomputeGlobalAttributes = true; 2141 if (!mWillDrawSoon) { 2142 scheduleTraversals(); 2143 } 2144 } 2145 } 2146 2147 void dispatchDetachedFromWindow() { 2148 if (mView != null && mView.mAttachInfo != null) { 2149 if (mAttachInfo.mHardwareRenderer != null && 2150 mAttachInfo.mHardwareRenderer.isEnabled()) { 2151 mAttachInfo.mHardwareRenderer.validate(); 2152 } 2153 mView.dispatchDetachedFromWindow(); 2154 } 2155 2156 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2157 mAccessibilityManager.removeAccessibilityStateChangeListener( 2158 mAccessibilityInteractionConnectionManager); 2159 removeSendWindowContentChangedCallback(); 2160 2161 mView = null; 2162 mAttachInfo.mRootView = null; 2163 mAttachInfo.mSurface = null; 2164 2165 destroyHardwareRenderer(); 2166 2167 mSurface.release(); 2168 2169 if (mInputQueueCallback != null && mInputQueue != null) { 2170 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2171 mInputQueueCallback = null; 2172 mInputQueue = null; 2173 } else if (mInputChannel != null) { 2174 InputQueue.unregisterInputChannel(mInputChannel); 2175 } 2176 try { 2177 sWindowSession.remove(mWindow); 2178 } catch (RemoteException e) { 2179 } 2180 2181 // Dispose the input channel after removing the window so the Window Manager 2182 // doesn't interpret the input channel being closed as an abnormal termination. 2183 if (mInputChannel != null) { 2184 mInputChannel.dispose(); 2185 mInputChannel = null; 2186 } 2187 } 2188 2189 void updateConfiguration(Configuration config, boolean force) { 2190 if (DEBUG_CONFIGURATION) Log.v(TAG, 2191 "Applying new config to window " 2192 + mWindowAttributes.getTitle() 2193 + ": " + config); 2194 2195 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2196 if (ci != null) { 2197 config = new Configuration(config); 2198 ci.applyToConfiguration(config); 2199 } 2200 2201 synchronized (sConfigCallbacks) { 2202 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2203 sConfigCallbacks.get(i).onConfigurationChanged(config); 2204 } 2205 } 2206 if (mView != null) { 2207 // At this point the resources have been updated to 2208 // have the most recent config, whatever that is. Use 2209 // the on in them which may be newer. 2210 config = mView.getResources().getConfiguration(); 2211 if (force || mLastConfiguration.diff(config) != 0) { 2212 mLastConfiguration.setTo(config); 2213 mView.dispatchConfigurationChanged(config); 2214 } 2215 } 2216 } 2217 2218 /** 2219 * Return true if child is an ancestor of parent, (or equal to the parent). 2220 */ 2221 private static boolean isViewDescendantOf(View child, View parent) { 2222 if (child == parent) { 2223 return true; 2224 } 2225 2226 final ViewParent theParent = child.getParent(); 2227 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2228 } 2229 2230 private static void forceLayout(View view) { 2231 view.forceLayout(); 2232 if (view instanceof ViewGroup) { 2233 ViewGroup group = (ViewGroup) view; 2234 final int count = group.getChildCount(); 2235 for (int i = 0; i < count; i++) { 2236 forceLayout(group.getChildAt(i)); 2237 } 2238 } 2239 } 2240 2241 public final static int DO_TRAVERSAL = 1000; 2242 public final static int DIE = 1001; 2243 public final static int RESIZED = 1002; 2244 public final static int RESIZED_REPORT = 1003; 2245 public final static int WINDOW_FOCUS_CHANGED = 1004; 2246 public final static int DISPATCH_KEY = 1005; 2247 public final static int DISPATCH_POINTER = 1006; 2248 public final static int DISPATCH_TRACKBALL = 1007; 2249 public final static int DISPATCH_APP_VISIBILITY = 1008; 2250 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2251 public final static int FINISHED_EVENT = 1010; 2252 public final static int DISPATCH_KEY_FROM_IME = 1011; 2253 public final static int FINISH_INPUT_CONNECTION = 1012; 2254 public final static int CHECK_FOCUS = 1013; 2255 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2256 public final static int DISPATCH_DRAG_EVENT = 1015; 2257 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2258 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2259 public final static int DISPATCH_GENERIC_MOTION = 1018; 2260 public final static int UPDATE_CONFIGURATION = 1019; 2261 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2262 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2263 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2264 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2265 2266 @Override 2267 public String getMessageName(Message message) { 2268 switch (message.what) { 2269 case DO_TRAVERSAL: 2270 return "DO_TRAVERSAL"; 2271 case DIE: 2272 return "DIE"; 2273 case RESIZED: 2274 return "RESIZED"; 2275 case RESIZED_REPORT: 2276 return "RESIZED_REPORT"; 2277 case WINDOW_FOCUS_CHANGED: 2278 return "WINDOW_FOCUS_CHANGED"; 2279 case DISPATCH_KEY: 2280 return "DISPATCH_KEY"; 2281 case DISPATCH_POINTER: 2282 return "DISPATCH_POINTER"; 2283 case DISPATCH_TRACKBALL: 2284 return "DISPATCH_TRACKBALL"; 2285 case DISPATCH_APP_VISIBILITY: 2286 return "DISPATCH_APP_VISIBILITY"; 2287 case DISPATCH_GET_NEW_SURFACE: 2288 return "DISPATCH_GET_NEW_SURFACE"; 2289 case FINISHED_EVENT: 2290 return "FINISHED_EVENT"; 2291 case DISPATCH_KEY_FROM_IME: 2292 return "DISPATCH_KEY_FROM_IME"; 2293 case FINISH_INPUT_CONNECTION: 2294 return "FINISH_INPUT_CONNECTION"; 2295 case CHECK_FOCUS: 2296 return "CHECK_FOCUS"; 2297 case CLOSE_SYSTEM_DIALOGS: 2298 return "CLOSE_SYSTEM_DIALOGS"; 2299 case DISPATCH_DRAG_EVENT: 2300 return "DISPATCH_DRAG_EVENT"; 2301 case DISPATCH_DRAG_LOCATION_EVENT: 2302 return "DISPATCH_DRAG_LOCATION_EVENT"; 2303 case DISPATCH_SYSTEM_UI_VISIBILITY: 2304 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2305 case DISPATCH_GENERIC_MOTION: 2306 return "DISPATCH_GENERIC_MOTION"; 2307 case UPDATE_CONFIGURATION: 2308 return "UPDATE_CONFIGURATION"; 2309 case DO_PERFORM_ACCESSIBILITY_ACTION: 2310 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2311 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2312 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2313 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2314 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2315 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2316 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2317 2318 } 2319 return super.getMessageName(message); 2320 } 2321 2322 @Override 2323 public void handleMessage(Message msg) { 2324 switch (msg.what) { 2325 case View.AttachInfo.INVALIDATE_MSG: 2326 ((View) msg.obj).invalidate(); 2327 break; 2328 case View.AttachInfo.INVALIDATE_RECT_MSG: 2329 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2330 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2331 info.release(); 2332 break; 2333 case DO_TRAVERSAL: 2334 if (mProfile) { 2335 Debug.startMethodTracing("ViewAncestor"); 2336 } 2337 2338 final long traversalStartTime; 2339 if (ViewDebug.DEBUG_LATENCY) { 2340 traversalStartTime = System.nanoTime(); 2341 mLastDrawDurationNanos = 0; 2342 } 2343 2344 performTraversals(); 2345 2346 if (ViewDebug.DEBUG_LATENCY) { 2347 long now = System.nanoTime(); 2348 Log.d(TAG, "Latency: Spent " 2349 + ((now - traversalStartTime) * 0.000001f) 2350 + "ms in performTraversals(), with " 2351 + (mLastDrawDurationNanos * 0.000001f) 2352 + "ms of that time in draw()"); 2353 mLastTraversalFinishedTimeNanos = now; 2354 } 2355 2356 if (mProfile) { 2357 Debug.stopMethodTracing(); 2358 mProfile = false; 2359 } 2360 break; 2361 case FINISHED_EVENT: 2362 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2363 break; 2364 case DISPATCH_KEY: 2365 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2366 break; 2367 case DISPATCH_POINTER: 2368 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2369 break; 2370 case DISPATCH_TRACKBALL: 2371 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2372 break; 2373 case DISPATCH_GENERIC_MOTION: 2374 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2375 break; 2376 case DISPATCH_APP_VISIBILITY: 2377 handleAppVisibility(msg.arg1 != 0); 2378 break; 2379 case DISPATCH_GET_NEW_SURFACE: 2380 handleGetNewSurface(); 2381 break; 2382 case RESIZED: 2383 ResizedInfo ri = (ResizedInfo)msg.obj; 2384 2385 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2386 && mPendingContentInsets.equals(ri.coveredInsets) 2387 && mPendingVisibleInsets.equals(ri.visibleInsets) 2388 && ((ResizedInfo)msg.obj).newConfig == null) { 2389 break; 2390 } 2391 // fall through... 2392 case RESIZED_REPORT: 2393 if (mAdded) { 2394 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2395 if (config != null) { 2396 updateConfiguration(config, false); 2397 } 2398 mWinFrame.left = 0; 2399 mWinFrame.right = msg.arg1; 2400 mWinFrame.top = 0; 2401 mWinFrame.bottom = msg.arg2; 2402 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2403 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2404 if (msg.what == RESIZED_REPORT) { 2405 mReportNextDraw = true; 2406 } 2407 2408 if (mView != null) { 2409 forceLayout(mView); 2410 } 2411 requestLayout(); 2412 } 2413 break; 2414 case WINDOW_FOCUS_CHANGED: { 2415 if (mAdded) { 2416 boolean hasWindowFocus = msg.arg1 != 0; 2417 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2418 2419 profileRendering(hasWindowFocus); 2420 2421 if (hasWindowFocus) { 2422 boolean inTouchMode = msg.arg2 != 0; 2423 ensureTouchModeLocally(inTouchMode); 2424 2425 if (mAttachInfo.mHardwareRenderer != null && 2426 mSurface != null && mSurface.isValid()) { 2427 mFullRedrawNeeded = true; 2428 try { 2429 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2430 mAttachInfo, mHolder); 2431 } catch (Surface.OutOfResourcesException e) { 2432 Log.e(TAG, "OutOfResourcesException locking surface", e); 2433 try { 2434 if (!sWindowSession.outOfMemory(mWindow)) { 2435 Slog.w(TAG, "No processes killed for memory; killing self"); 2436 Process.killProcess(Process.myPid()); 2437 } 2438 } catch (RemoteException ex) { 2439 } 2440 // Retry in a bit. 2441 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2442 return; 2443 } 2444 } 2445 } 2446 2447 mLastWasImTarget = WindowManager.LayoutParams 2448 .mayUseInputMethod(mWindowAttributes.flags); 2449 2450 InputMethodManager imm = InputMethodManager.peekInstance(); 2451 if (mView != null) { 2452 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2453 imm.startGettingWindowFocus(mView); 2454 } 2455 mAttachInfo.mKeyDispatchState.reset(); 2456 mView.dispatchWindowFocusChanged(hasWindowFocus); 2457 } 2458 2459 // Note: must be done after the focus change callbacks, 2460 // so all of the view state is set up correctly. 2461 if (hasWindowFocus) { 2462 if (imm != null && mLastWasImTarget) { 2463 imm.onWindowFocus(mView, mView.findFocus(), 2464 mWindowAttributes.softInputMode, 2465 !mHasHadWindowFocus, mWindowAttributes.flags); 2466 } 2467 // Clear the forward bit. We can just do this directly, since 2468 // the window manager doesn't care about it. 2469 mWindowAttributes.softInputMode &= 2470 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2471 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2472 .softInputMode &= 2473 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2474 mHasHadWindowFocus = true; 2475 } 2476 2477 if (hasWindowFocus && mView != null) { 2478 sendAccessibilityEvents(); 2479 } 2480 } 2481 } break; 2482 case DIE: 2483 doDie(); 2484 break; 2485 case DISPATCH_KEY_FROM_IME: { 2486 if (LOCAL_LOGV) Log.v( 2487 TAG, "Dispatching key " 2488 + msg.obj + " from IME to " + mView); 2489 KeyEvent event = (KeyEvent)msg.obj; 2490 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2491 // The IME is trying to say this event is from the 2492 // system! Bad bad bad! 2493 //noinspection UnusedAssignment 2494 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2495 } 2496 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2497 } break; 2498 case FINISH_INPUT_CONNECTION: { 2499 InputMethodManager imm = InputMethodManager.peekInstance(); 2500 if (imm != null) { 2501 imm.reportFinishInputConnection((InputConnection)msg.obj); 2502 } 2503 } break; 2504 case CHECK_FOCUS: { 2505 InputMethodManager imm = InputMethodManager.peekInstance(); 2506 if (imm != null) { 2507 imm.checkFocus(); 2508 } 2509 } break; 2510 case CLOSE_SYSTEM_DIALOGS: { 2511 if (mView != null) { 2512 mView.onCloseSystemDialogs((String)msg.obj); 2513 } 2514 } break; 2515 case DISPATCH_DRAG_EVENT: 2516 case DISPATCH_DRAG_LOCATION_EVENT: { 2517 DragEvent event = (DragEvent)msg.obj; 2518 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2519 handleDragEvent(event); 2520 } break; 2521 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2522 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2523 } break; 2524 case UPDATE_CONFIGURATION: { 2525 Configuration config = (Configuration)msg.obj; 2526 if (config.isOtherSeqNewer(mLastConfiguration)) { 2527 config = mLastConfiguration; 2528 } 2529 updateConfiguration(config, false); 2530 } break; 2531 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2532 if (mView != null) { 2533 getAccessibilityInteractionController() 2534 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2535 } 2536 } break; 2537 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2538 if (mView != null) { 2539 getAccessibilityInteractionController() 2540 .perfromAccessibilityActionUiThread(msg); 2541 } 2542 } break; 2543 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2544 if (mView != null) { 2545 getAccessibilityInteractionController() 2546 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2547 } 2548 } break; 2549 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2550 if (mView != null) { 2551 getAccessibilityInteractionController() 2552 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2553 } 2554 } break; 2555 } 2556 } 2557 2558 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2559 if (mFinishedCallback != null) { 2560 Slog.w(TAG, "Received a new input event from the input queue but there is " 2561 + "already an unfinished input event in progress."); 2562 } 2563 2564 if (ViewDebug.DEBUG_LATENCY) { 2565 mInputEventReceiveTimeNanos = System.nanoTime(); 2566 mInputEventDeliverTimeNanos = 0; 2567 mInputEventDeliverPostImeTimeNanos = 0; 2568 } 2569 2570 mFinishedCallback = finishedCallback; 2571 } 2572 2573 private void finishInputEvent(InputEvent event, boolean handled) { 2574 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2575 2576 if (mFinishedCallback == null) { 2577 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2578 + "is finished but there is no input event actually in progress."); 2579 return; 2580 } 2581 2582 if (ViewDebug.DEBUG_LATENCY) { 2583 final long now = System.nanoTime(); 2584 final long eventTime = event.getEventTimeNano(); 2585 final StringBuilder msg = new StringBuilder(); 2586 msg.append("Latency: Spent "); 2587 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2588 msg.append("ms processing "); 2589 if (event instanceof KeyEvent) { 2590 final KeyEvent keyEvent = (KeyEvent)event; 2591 msg.append("key event, action="); 2592 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2593 } else { 2594 final MotionEvent motionEvent = (MotionEvent)event; 2595 msg.append("motion event, action="); 2596 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2597 msg.append(", historySize="); 2598 msg.append(motionEvent.getHistorySize()); 2599 } 2600 msg.append(", handled="); 2601 msg.append(handled); 2602 msg.append(", received at +"); 2603 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2604 if (mInputEventDeliverTimeNanos != 0) { 2605 msg.append("ms, delivered at +"); 2606 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2607 } 2608 if (mInputEventDeliverPostImeTimeNanos != 0) { 2609 msg.append("ms, delivered post IME at +"); 2610 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2611 } 2612 msg.append("ms, finished at +"); 2613 msg.append((now - eventTime) * 0.000001f); 2614 msg.append("ms."); 2615 Log.d(TAG, msg.toString()); 2616 } 2617 2618 mFinishedCallback.finished(handled); 2619 mFinishedCallback = null; 2620 } 2621 2622 /** 2623 * Something in the current window tells us we need to change the touch mode. For 2624 * example, we are not in touch mode, and the user touches the screen. 2625 * 2626 * If the touch mode has changed, tell the window manager, and handle it locally. 2627 * 2628 * @param inTouchMode Whether we want to be in touch mode. 2629 * @return True if the touch mode changed and focus changed was changed as a result 2630 */ 2631 boolean ensureTouchMode(boolean inTouchMode) { 2632 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2633 + "touch mode is " + mAttachInfo.mInTouchMode); 2634 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2635 2636 // tell the window manager 2637 try { 2638 sWindowSession.setInTouchMode(inTouchMode); 2639 } catch (RemoteException e) { 2640 throw new RuntimeException(e); 2641 } 2642 2643 // handle the change 2644 return ensureTouchModeLocally(inTouchMode); 2645 } 2646 2647 /** 2648 * Ensure that the touch mode for this window is set, and if it is changing, 2649 * take the appropriate action. 2650 * @param inTouchMode Whether we want to be in touch mode. 2651 * @return True if the touch mode changed and focus changed was changed as a result 2652 */ 2653 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2654 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2655 + "touch mode is " + mAttachInfo.mInTouchMode); 2656 2657 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2658 2659 mAttachInfo.mInTouchMode = inTouchMode; 2660 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2661 2662 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2663 } 2664 2665 private boolean enterTouchMode() { 2666 if (mView != null) { 2667 if (mView.hasFocus()) { 2668 // note: not relying on mFocusedView here because this could 2669 // be when the window is first being added, and mFocused isn't 2670 // set yet. 2671 final View focused = mView.findFocus(); 2672 if (focused != null && !focused.isFocusableInTouchMode()) { 2673 2674 final ViewGroup ancestorToTakeFocus = 2675 findAncestorToTakeFocusInTouchMode(focused); 2676 if (ancestorToTakeFocus != null) { 2677 // there is an ancestor that wants focus after its descendants that 2678 // is focusable in touch mode.. give it focus 2679 return ancestorToTakeFocus.requestFocus(); 2680 } else { 2681 // nothing appropriate to have focus in touch mode, clear it out 2682 mView.unFocus(); 2683 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2684 mFocusedView = null; 2685 return true; 2686 } 2687 } 2688 } 2689 } 2690 return false; 2691 } 2692 2693 2694 /** 2695 * Find an ancestor of focused that wants focus after its descendants and is 2696 * focusable in touch mode. 2697 * @param focused The currently focused view. 2698 * @return An appropriate view, or null if no such view exists. 2699 */ 2700 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2701 ViewParent parent = focused.getParent(); 2702 while (parent instanceof ViewGroup) { 2703 final ViewGroup vgParent = (ViewGroup) parent; 2704 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2705 && vgParent.isFocusableInTouchMode()) { 2706 return vgParent; 2707 } 2708 if (vgParent.isRootNamespace()) { 2709 return null; 2710 } else { 2711 parent = vgParent.getParent(); 2712 } 2713 } 2714 return null; 2715 } 2716 2717 private boolean leaveTouchMode() { 2718 if (mView != null) { 2719 if (mView.hasFocus()) { 2720 // i learned the hard way to not trust mFocusedView :) 2721 mFocusedView = mView.findFocus(); 2722 if (!(mFocusedView instanceof ViewGroup)) { 2723 // some view has focus, let it keep it 2724 return false; 2725 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2726 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2727 // some view group has focus, and doesn't prefer its children 2728 // over itself for focus, so let them keep it. 2729 return false; 2730 } 2731 } 2732 2733 // find the best view to give focus to in this brave new non-touch-mode 2734 // world 2735 final View focused = focusSearch(null, View.FOCUS_DOWN); 2736 if (focused != null) { 2737 return focused.requestFocus(View.FOCUS_DOWN); 2738 } 2739 } 2740 return false; 2741 } 2742 2743 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2744 if (ViewDebug.DEBUG_LATENCY) { 2745 mInputEventDeliverTimeNanos = System.nanoTime(); 2746 } 2747 2748 final boolean isTouchEvent = event.isTouchEvent(); 2749 if (mInputEventConsistencyVerifier != null) { 2750 if (isTouchEvent) { 2751 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2752 } else { 2753 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2754 } 2755 } 2756 2757 // If there is no view, then the event will not be handled. 2758 if (mView == null || !mAdded) { 2759 finishMotionEvent(event, sendDone, false); 2760 return; 2761 } 2762 2763 // Translate the pointer event for compatibility, if needed. 2764 if (mTranslator != null) { 2765 mTranslator.translateEventInScreenToAppWindow(event); 2766 } 2767 2768 // Enter touch mode on down or scroll. 2769 final int action = event.getAction(); 2770 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2771 ensureTouchMode(true); 2772 } 2773 2774 // Offset the scroll position. 2775 if (mCurScrollY != 0) { 2776 event.offsetLocation(0, mCurScrollY); 2777 } 2778 if (MEASURE_LATENCY) { 2779 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2780 } 2781 2782 // Remember the touch position for possible drag-initiation. 2783 if (isTouchEvent) { 2784 mLastTouchPoint.x = event.getRawX(); 2785 mLastTouchPoint.y = event.getRawY(); 2786 } 2787 2788 // Dispatch touch to view hierarchy. 2789 boolean handled = mView.dispatchPointerEvent(event); 2790 if (MEASURE_LATENCY) { 2791 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2792 } 2793 if (handled) { 2794 finishMotionEvent(event, sendDone, true); 2795 return; 2796 } 2797 2798 // Pointer event was unhandled. 2799 finishMotionEvent(event, sendDone, false); 2800 } 2801 2802 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2803 event.recycle(); 2804 if (sendDone) { 2805 finishInputEvent(event, handled); 2806 } 2807 //noinspection ConstantConditions 2808 if (LOCAL_LOGV || WATCH_POINTER) { 2809 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2810 Log.i(TAG, "Done dispatching!"); 2811 } 2812 } 2813 } 2814 2815 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2816 if (ViewDebug.DEBUG_LATENCY) { 2817 mInputEventDeliverTimeNanos = System.nanoTime(); 2818 } 2819 2820 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2821 2822 if (mInputEventConsistencyVerifier != null) { 2823 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2824 } 2825 2826 // If there is no view, then the event will not be handled. 2827 if (mView == null || !mAdded) { 2828 finishMotionEvent(event, sendDone, false); 2829 return; 2830 } 2831 2832 // Deliver the trackball event to the view. 2833 if (mView.dispatchTrackballEvent(event)) { 2834 // If we reach this, we delivered a trackball event to mView and 2835 // mView consumed it. Because we will not translate the trackball 2836 // event into a key event, touch mode will not exit, so we exit 2837 // touch mode here. 2838 ensureTouchMode(false); 2839 2840 finishMotionEvent(event, sendDone, true); 2841 mLastTrackballTime = Integer.MIN_VALUE; 2842 return; 2843 } 2844 2845 // Translate the trackball event into DPAD keys and try to deliver those. 2846 final TrackballAxis x = mTrackballAxisX; 2847 final TrackballAxis y = mTrackballAxisY; 2848 2849 long curTime = SystemClock.uptimeMillis(); 2850 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2851 // It has been too long since the last movement, 2852 // so restart at the beginning. 2853 x.reset(0); 2854 y.reset(0); 2855 mLastTrackballTime = curTime; 2856 } 2857 2858 final int action = event.getAction(); 2859 final int metaState = event.getMetaState(); 2860 switch (action) { 2861 case MotionEvent.ACTION_DOWN: 2862 x.reset(2); 2863 y.reset(2); 2864 deliverKeyEvent(new KeyEvent(curTime, curTime, 2865 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2866 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2867 InputDevice.SOURCE_KEYBOARD), false); 2868 break; 2869 case MotionEvent.ACTION_UP: 2870 x.reset(2); 2871 y.reset(2); 2872 deliverKeyEvent(new KeyEvent(curTime, curTime, 2873 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2874 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2875 InputDevice.SOURCE_KEYBOARD), false); 2876 break; 2877 } 2878 2879 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2880 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2881 + " move=" + event.getX() 2882 + " / Y=" + y.position + " step=" 2883 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2884 + " move=" + event.getY()); 2885 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2886 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2887 2888 // Generate DPAD events based on the trackball movement. 2889 // We pick the axis that has moved the most as the direction of 2890 // the DPAD. When we generate DPAD events for one axis, then the 2891 // other axis is reset -- we don't want to perform DPAD jumps due 2892 // to slight movements in the trackball when making major movements 2893 // along the other axis. 2894 int keycode = 0; 2895 int movement = 0; 2896 float accel = 1; 2897 if (xOff > yOff) { 2898 movement = x.generate((2/event.getXPrecision())); 2899 if (movement != 0) { 2900 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2901 : KeyEvent.KEYCODE_DPAD_LEFT; 2902 accel = x.acceleration; 2903 y.reset(2); 2904 } 2905 } else if (yOff > 0) { 2906 movement = y.generate((2/event.getYPrecision())); 2907 if (movement != 0) { 2908 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2909 : KeyEvent.KEYCODE_DPAD_UP; 2910 accel = y.acceleration; 2911 x.reset(2); 2912 } 2913 } 2914 2915 if (keycode != 0) { 2916 if (movement < 0) movement = -movement; 2917 int accelMovement = (int)(movement * accel); 2918 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2919 + " accelMovement=" + accelMovement 2920 + " accel=" + accel); 2921 if (accelMovement > movement) { 2922 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2923 + keycode); 2924 movement--; 2925 int repeatCount = accelMovement - movement; 2926 deliverKeyEvent(new KeyEvent(curTime, curTime, 2927 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2928 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2929 InputDevice.SOURCE_KEYBOARD), false); 2930 } 2931 while (movement > 0) { 2932 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2933 + keycode); 2934 movement--; 2935 curTime = SystemClock.uptimeMillis(); 2936 deliverKeyEvent(new KeyEvent(curTime, curTime, 2937 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2938 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2939 InputDevice.SOURCE_KEYBOARD), false); 2940 deliverKeyEvent(new KeyEvent(curTime, curTime, 2941 KeyEvent.ACTION_UP, keycode, 0, metaState, 2942 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2943 InputDevice.SOURCE_KEYBOARD), false); 2944 } 2945 mLastTrackballTime = curTime; 2946 } 2947 2948 // Unfortunately we can't tell whether the application consumed the keys, so 2949 // we always consider the trackball event handled. 2950 finishMotionEvent(event, sendDone, true); 2951 } 2952 2953 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2954 if (ViewDebug.DEBUG_LATENCY) { 2955 mInputEventDeliverTimeNanos = System.nanoTime(); 2956 } 2957 2958 if (mInputEventConsistencyVerifier != null) { 2959 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2960 } 2961 2962 final int source = event.getSource(); 2963 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2964 2965 // If there is no view, then the event will not be handled. 2966 if (mView == null || !mAdded) { 2967 if (isJoystick) { 2968 updateJoystickDirection(event, false); 2969 } 2970 finishMotionEvent(event, sendDone, false); 2971 return; 2972 } 2973 2974 // Deliver the event to the view. 2975 if (mView.dispatchGenericMotionEvent(event)) { 2976 if (isJoystick) { 2977 updateJoystickDirection(event, false); 2978 } 2979 finishMotionEvent(event, sendDone, true); 2980 return; 2981 } 2982 2983 if (isJoystick) { 2984 // Translate the joystick event into DPAD keys and try to deliver those. 2985 updateJoystickDirection(event, true); 2986 finishMotionEvent(event, sendDone, true); 2987 } else { 2988 finishMotionEvent(event, sendDone, false); 2989 } 2990 } 2991 2992 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 2993 final long time = event.getEventTime(); 2994 final int metaState = event.getMetaState(); 2995 final int deviceId = event.getDeviceId(); 2996 final int source = event.getSource(); 2997 2998 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 2999 if (xDirection == 0) { 3000 xDirection = joystickAxisValueToDirection(event.getX()); 3001 } 3002 3003 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3004 if (yDirection == 0) { 3005 yDirection = joystickAxisValueToDirection(event.getY()); 3006 } 3007 3008 if (xDirection != mLastJoystickXDirection) { 3009 if (mLastJoystickXKeyCode != 0) { 3010 deliverKeyEvent(new KeyEvent(time, time, 3011 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3012 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3013 mLastJoystickXKeyCode = 0; 3014 } 3015 3016 mLastJoystickXDirection = xDirection; 3017 3018 if (xDirection != 0 && synthesizeNewKeys) { 3019 mLastJoystickXKeyCode = xDirection > 0 3020 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3021 deliverKeyEvent(new KeyEvent(time, time, 3022 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3023 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3024 } 3025 } 3026 3027 if (yDirection != mLastJoystickYDirection) { 3028 if (mLastJoystickYKeyCode != 0) { 3029 deliverKeyEvent(new KeyEvent(time, time, 3030 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3031 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3032 mLastJoystickYKeyCode = 0; 3033 } 3034 3035 mLastJoystickYDirection = yDirection; 3036 3037 if (yDirection != 0 && synthesizeNewKeys) { 3038 mLastJoystickYKeyCode = yDirection > 0 3039 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3040 deliverKeyEvent(new KeyEvent(time, time, 3041 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3042 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3043 } 3044 } 3045 } 3046 3047 private static int joystickAxisValueToDirection(float value) { 3048 if (value >= 0.5f) { 3049 return 1; 3050 } else if (value <= -0.5f) { 3051 return -1; 3052 } else { 3053 return 0; 3054 } 3055 } 3056 3057 /** 3058 * Returns true if the key is used for keyboard navigation. 3059 * @param keyEvent The key event. 3060 * @return True if the key is used for keyboard navigation. 3061 */ 3062 private static boolean isNavigationKey(KeyEvent keyEvent) { 3063 switch (keyEvent.getKeyCode()) { 3064 case KeyEvent.KEYCODE_DPAD_LEFT: 3065 case KeyEvent.KEYCODE_DPAD_RIGHT: 3066 case KeyEvent.KEYCODE_DPAD_UP: 3067 case KeyEvent.KEYCODE_DPAD_DOWN: 3068 case KeyEvent.KEYCODE_DPAD_CENTER: 3069 case KeyEvent.KEYCODE_PAGE_UP: 3070 case KeyEvent.KEYCODE_PAGE_DOWN: 3071 case KeyEvent.KEYCODE_MOVE_HOME: 3072 case KeyEvent.KEYCODE_MOVE_END: 3073 case KeyEvent.KEYCODE_TAB: 3074 case KeyEvent.KEYCODE_SPACE: 3075 case KeyEvent.KEYCODE_ENTER: 3076 return true; 3077 } 3078 return false; 3079 } 3080 3081 /** 3082 * Returns true if the key is used for typing. 3083 * @param keyEvent The key event. 3084 * @return True if the key is used for typing. 3085 */ 3086 private static boolean isTypingKey(KeyEvent keyEvent) { 3087 return keyEvent.getUnicodeChar() > 0; 3088 } 3089 3090 /** 3091 * See if the key event means we should leave touch mode (and leave touch mode if so). 3092 * @param event The key event. 3093 * @return Whether this key event should be consumed (meaning the act of 3094 * leaving touch mode alone is considered the event). 3095 */ 3096 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3097 // Only relevant in touch mode. 3098 if (!mAttachInfo.mInTouchMode) { 3099 return false; 3100 } 3101 3102 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3103 final int action = event.getAction(); 3104 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3105 return false; 3106 } 3107 3108 // Don't leave touch mode if the IME told us not to. 3109 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3110 return false; 3111 } 3112 3113 // If the key can be used for keyboard navigation then leave touch mode 3114 // and select a focused view if needed (in ensureTouchMode). 3115 // When a new focused view is selected, we consume the navigation key because 3116 // navigation doesn't make much sense unless a view already has focus so 3117 // the key's purpose is to set focus. 3118 if (isNavigationKey(event)) { 3119 return ensureTouchMode(false); 3120 } 3121 3122 // If the key can be used for typing then leave touch mode 3123 // and select a focused view if needed (in ensureTouchMode). 3124 // Always allow the view to process the typing key. 3125 if (isTypingKey(event)) { 3126 ensureTouchMode(false); 3127 return false; 3128 } 3129 3130 return false; 3131 } 3132 3133 int enqueuePendingEvent(Object event, boolean sendDone) { 3134 int seq = mPendingEventSeq+1; 3135 if (seq < 0) seq = 0; 3136 mPendingEventSeq = seq; 3137 mPendingEvents.put(seq, event); 3138 return sendDone ? seq : -seq; 3139 } 3140 3141 Object retrievePendingEvent(int seq) { 3142 if (seq < 0) seq = -seq; 3143 Object event = mPendingEvents.get(seq); 3144 if (event != null) { 3145 mPendingEvents.remove(seq); 3146 } 3147 return event; 3148 } 3149 3150 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3151 if (ViewDebug.DEBUG_LATENCY) { 3152 mInputEventDeliverTimeNanos = System.nanoTime(); 3153 } 3154 3155 if (mInputEventConsistencyVerifier != null) { 3156 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3157 } 3158 3159 // If there is no view, then the event will not be handled. 3160 if (mView == null || !mAdded) { 3161 finishKeyEvent(event, sendDone, false); 3162 return; 3163 } 3164 3165 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3166 3167 // Perform predispatching before the IME. 3168 if (mView.dispatchKeyEventPreIme(event)) { 3169 finishKeyEvent(event, sendDone, true); 3170 return; 3171 } 3172 3173 // Dispatch to the IME before propagating down the view hierarchy. 3174 // The IME will eventually call back into handleFinishedEvent. 3175 if (mLastWasImTarget) { 3176 InputMethodManager imm = InputMethodManager.peekInstance(); 3177 if (imm != null) { 3178 int seq = enqueuePendingEvent(event, sendDone); 3179 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3180 + seq + " event=" + event); 3181 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3182 return; 3183 } 3184 } 3185 3186 // Not dispatching to IME, continue with post IME actions. 3187 deliverKeyEventPostIme(event, sendDone); 3188 } 3189 3190 private void handleFinishedEvent(int seq, boolean handled) { 3191 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3192 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3193 + " handled=" + handled + " event=" + event); 3194 if (event != null) { 3195 final boolean sendDone = seq >= 0; 3196 if (handled) { 3197 finishKeyEvent(event, sendDone, true); 3198 } else { 3199 deliverKeyEventPostIme(event, sendDone); 3200 } 3201 } 3202 } 3203 3204 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3205 if (ViewDebug.DEBUG_LATENCY) { 3206 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3207 } 3208 3209 // If the view went away, then the event will not be handled. 3210 if (mView == null || !mAdded) { 3211 finishKeyEvent(event, sendDone, false); 3212 return; 3213 } 3214 3215 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3216 if (checkForLeavingTouchModeAndConsume(event)) { 3217 finishKeyEvent(event, sendDone, true); 3218 return; 3219 } 3220 3221 // Make sure the fallback event policy sees all keys that will be delivered to the 3222 // view hierarchy. 3223 mFallbackEventHandler.preDispatchKeyEvent(event); 3224 3225 // Deliver the key to the view hierarchy. 3226 if (mView.dispatchKeyEvent(event)) { 3227 finishKeyEvent(event, sendDone, true); 3228 return; 3229 } 3230 3231 // If the Control modifier is held, try to interpret the key as a shortcut. 3232 if (event.getAction() == KeyEvent.ACTION_UP 3233 && event.isCtrlPressed() 3234 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3235 if (mView.dispatchKeyShortcutEvent(event)) { 3236 finishKeyEvent(event, sendDone, true); 3237 return; 3238 } 3239 } 3240 3241 // Apply the fallback event policy. 3242 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3243 finishKeyEvent(event, sendDone, true); 3244 return; 3245 } 3246 3247 // Handle automatic focus changes. 3248 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3249 int direction = 0; 3250 switch (event.getKeyCode()) { 3251 case KeyEvent.KEYCODE_DPAD_LEFT: 3252 if (event.hasNoModifiers()) { 3253 direction = View.FOCUS_LEFT; 3254 } 3255 break; 3256 case KeyEvent.KEYCODE_DPAD_RIGHT: 3257 if (event.hasNoModifiers()) { 3258 direction = View.FOCUS_RIGHT; 3259 } 3260 break; 3261 case KeyEvent.KEYCODE_DPAD_UP: 3262 if (event.hasNoModifiers()) { 3263 direction = View.FOCUS_UP; 3264 } 3265 break; 3266 case KeyEvent.KEYCODE_DPAD_DOWN: 3267 if (event.hasNoModifiers()) { 3268 direction = View.FOCUS_DOWN; 3269 } 3270 break; 3271 case KeyEvent.KEYCODE_TAB: 3272 if (event.hasNoModifiers()) { 3273 direction = View.FOCUS_FORWARD; 3274 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3275 direction = View.FOCUS_BACKWARD; 3276 } 3277 break; 3278 } 3279 3280 if (direction != 0) { 3281 View focused = mView != null ? mView.findFocus() : null; 3282 if (focused != null) { 3283 View v = focused.focusSearch(direction); 3284 if (v != null && v != focused) { 3285 // do the math the get the interesting rect 3286 // of previous focused into the coord system of 3287 // newly focused view 3288 focused.getFocusedRect(mTempRect); 3289 if (mView instanceof ViewGroup) { 3290 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3291 focused, mTempRect); 3292 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3293 v, mTempRect); 3294 } 3295 if (v.requestFocus(direction, mTempRect)) { 3296 playSoundEffect( 3297 SoundEffectConstants.getContantForFocusDirection(direction)); 3298 finishKeyEvent(event, sendDone, true); 3299 return; 3300 } 3301 } 3302 3303 // Give the focused view a last chance to handle the dpad key. 3304 if (mView.dispatchUnhandledMove(focused, direction)) { 3305 finishKeyEvent(event, sendDone, true); 3306 return; 3307 } 3308 } 3309 } 3310 } 3311 3312 // Key was unhandled. 3313 finishKeyEvent(event, sendDone, false); 3314 } 3315 3316 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3317 if (sendDone) { 3318 finishInputEvent(event, handled); 3319 } 3320 } 3321 3322 /* drag/drop */ 3323 void setLocalDragState(Object obj) { 3324 mLocalDragState = obj; 3325 } 3326 3327 private void handleDragEvent(DragEvent event) { 3328 // From the root, only drag start/end/location are dispatched. entered/exited 3329 // are determined and dispatched by the viewgroup hierarchy, who then report 3330 // that back here for ultimate reporting back to the framework. 3331 if (mView != null && mAdded) { 3332 final int what = event.mAction; 3333 3334 if (what == DragEvent.ACTION_DRAG_EXITED) { 3335 // A direct EXITED event means that the window manager knows we've just crossed 3336 // a window boundary, so the current drag target within this one must have 3337 // just been exited. Send it the usual notifications and then we're done 3338 // for now. 3339 mView.dispatchDragEvent(event); 3340 } else { 3341 // Cache the drag description when the operation starts, then fill it in 3342 // on subsequent calls as a convenience 3343 if (what == DragEvent.ACTION_DRAG_STARTED) { 3344 mCurrentDragView = null; // Start the current-recipient tracking 3345 mDragDescription = event.mClipDescription; 3346 } else { 3347 event.mClipDescription = mDragDescription; 3348 } 3349 3350 // For events with a [screen] location, translate into window coordinates 3351 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3352 mDragPoint.set(event.mX, event.mY); 3353 if (mTranslator != null) { 3354 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3355 } 3356 3357 if (mCurScrollY != 0) { 3358 mDragPoint.offset(0, mCurScrollY); 3359 } 3360 3361 event.mX = mDragPoint.x; 3362 event.mY = mDragPoint.y; 3363 } 3364 3365 // Remember who the current drag target is pre-dispatch 3366 final View prevDragView = mCurrentDragView; 3367 3368 // Now dispatch the drag/drop event 3369 boolean result = mView.dispatchDragEvent(event); 3370 3371 // If we changed apparent drag target, tell the OS about it 3372 if (prevDragView != mCurrentDragView) { 3373 try { 3374 if (prevDragView != null) { 3375 sWindowSession.dragRecipientExited(mWindow); 3376 } 3377 if (mCurrentDragView != null) { 3378 sWindowSession.dragRecipientEntered(mWindow); 3379 } 3380 } catch (RemoteException e) { 3381 Slog.e(TAG, "Unable to note drag target change"); 3382 } 3383 } 3384 3385 // Report the drop result when we're done 3386 if (what == DragEvent.ACTION_DROP) { 3387 mDragDescription = null; 3388 try { 3389 Log.i(TAG, "Reporting drop result: " + result); 3390 sWindowSession.reportDropResult(mWindow, result); 3391 } catch (RemoteException e) { 3392 Log.e(TAG, "Unable to report drop result"); 3393 } 3394 } 3395 3396 // When the drag operation ends, release any local state object 3397 // that may have been in use 3398 if (what == DragEvent.ACTION_DRAG_ENDED) { 3399 setLocalDragState(null); 3400 } 3401 } 3402 } 3403 event.recycle(); 3404 } 3405 3406 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3407 if (mView == null) return; 3408 if (mAttachInfo != null) { 3409 mAttachInfo.mSystemUiVisibility = visibility; 3410 } 3411 mView.dispatchSystemUiVisibilityChanged(visibility); 3412 } 3413 3414 public void getLastTouchPoint(Point outLocation) { 3415 outLocation.x = (int) mLastTouchPoint.x; 3416 outLocation.y = (int) mLastTouchPoint.y; 3417 } 3418 3419 public void setDragFocus(View newDragTarget) { 3420 if (mCurrentDragView != newDragTarget) { 3421 mCurrentDragView = newDragTarget; 3422 } 3423 } 3424 3425 private AudioManager getAudioManager() { 3426 if (mView == null) { 3427 throw new IllegalStateException("getAudioManager called when there is no mView"); 3428 } 3429 if (mAudioManager == null) { 3430 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3431 } 3432 return mAudioManager; 3433 } 3434 3435 public AccessibilityInteractionController getAccessibilityInteractionController() { 3436 if (mView == null) { 3437 throw new IllegalStateException("getAccessibilityInteractionController" 3438 + " called when there is no mView"); 3439 } 3440 if (mAccessibilityInteractionContrtoller == null) { 3441 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3442 } 3443 return mAccessibilityInteractionContrtoller; 3444 } 3445 3446 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3447 boolean insetsPending) throws RemoteException { 3448 3449 float appScale = mAttachInfo.mApplicationScale; 3450 boolean restore = false; 3451 if (params != null && mTranslator != null) { 3452 restore = true; 3453 params.backup(); 3454 mTranslator.translateWindowLayout(params); 3455 } 3456 if (params != null) { 3457 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3458 } 3459 mPendingConfiguration.seq = 0; 3460 //Log.d(TAG, ">>>>>> CALLING relayout"); 3461 int relayoutResult = sWindowSession.relayout( 3462 mWindow, params, 3463 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3464 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3465 viewVisibility, insetsPending, mWinFrame, 3466 mPendingContentInsets, mPendingVisibleInsets, 3467 mPendingConfiguration, mSurface); 3468 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3469 if (restore) { 3470 params.restore(); 3471 } 3472 3473 if (mTranslator != null) { 3474 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3475 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3476 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3477 } 3478 return relayoutResult; 3479 } 3480 3481 /** 3482 * {@inheritDoc} 3483 */ 3484 public void playSoundEffect(int effectId) { 3485 checkThread(); 3486 3487 try { 3488 final AudioManager audioManager = getAudioManager(); 3489 3490 switch (effectId) { 3491 case SoundEffectConstants.CLICK: 3492 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3493 return; 3494 case SoundEffectConstants.NAVIGATION_DOWN: 3495 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3496 return; 3497 case SoundEffectConstants.NAVIGATION_LEFT: 3498 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3499 return; 3500 case SoundEffectConstants.NAVIGATION_RIGHT: 3501 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3502 return; 3503 case SoundEffectConstants.NAVIGATION_UP: 3504 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3505 return; 3506 default: 3507 throw new IllegalArgumentException("unknown effect id " + effectId + 3508 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3509 } 3510 } catch (IllegalStateException e) { 3511 // Exception thrown by getAudioManager() when mView is null 3512 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3513 e.printStackTrace(); 3514 } 3515 } 3516 3517 /** 3518 * {@inheritDoc} 3519 */ 3520 public boolean performHapticFeedback(int effectId, boolean always) { 3521 try { 3522 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3523 } catch (RemoteException e) { 3524 return false; 3525 } 3526 } 3527 3528 /** 3529 * {@inheritDoc} 3530 */ 3531 public View focusSearch(View focused, int direction) { 3532 checkThread(); 3533 if (!(mView instanceof ViewGroup)) { 3534 return null; 3535 } 3536 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3537 } 3538 3539 public void debug() { 3540 mView.debug(); 3541 } 3542 3543 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3544 if (mView != null) { 3545 getGfxInfo(mView, info); 3546 } else { 3547 info[0] = info[1] = 0; 3548 } 3549 } 3550 3551 private void getGfxInfo(View view, int[] info) { 3552 DisplayList displayList = view.mDisplayList; 3553 info[0]++; 3554 if (displayList != null) { 3555 info[1] += displayList.getSize(); 3556 } 3557 3558 if (view instanceof ViewGroup) { 3559 ViewGroup group = (ViewGroup) view; 3560 3561 int count = group.getChildCount(); 3562 for (int i = 0; i < count; i++) { 3563 getGfxInfo(group.getChildAt(i), info); 3564 } 3565 } 3566 } 3567 3568 public void die(boolean immediate) { 3569 if (immediate) { 3570 doDie(); 3571 } else { 3572 sendEmptyMessage(DIE); 3573 } 3574 } 3575 3576 void doDie() { 3577 checkThread(); 3578 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3579 synchronized (this) { 3580 if (mAdded) { 3581 mAdded = false; 3582 dispatchDetachedFromWindow(); 3583 } 3584 3585 if (mAdded && !mFirst) { 3586 destroyHardwareRenderer(); 3587 3588 int viewVisibility = mView.getVisibility(); 3589 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3590 if (mWindowAttributesChanged || viewVisibilityChanged) { 3591 // If layout params have been changed, first give them 3592 // to the window manager to make sure it has the correct 3593 // animation info. 3594 try { 3595 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3596 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3597 sWindowSession.finishDrawing(mWindow); 3598 } 3599 } catch (RemoteException e) { 3600 } 3601 } 3602 3603 mSurface.release(); 3604 } 3605 } 3606 } 3607 3608 public void requestUpdateConfiguration(Configuration config) { 3609 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3610 sendMessage(msg); 3611 } 3612 3613 private void destroyHardwareRenderer() { 3614 if (mAttachInfo.mHardwareRenderer != null) { 3615 mAttachInfo.mHardwareRenderer.destroy(true); 3616 mAttachInfo.mHardwareRenderer = null; 3617 mAttachInfo.mHardwareAccelerated = false; 3618 } 3619 } 3620 3621 public void dispatchFinishedEvent(int seq, boolean handled) { 3622 Message msg = obtainMessage(FINISHED_EVENT); 3623 msg.arg1 = seq; 3624 msg.arg2 = handled ? 1 : 0; 3625 sendMessage(msg); 3626 } 3627 3628 public void dispatchResized(int w, int h, Rect coveredInsets, 3629 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3630 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3631 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3632 + " visibleInsets=" + visibleInsets.toShortString() 3633 + " reportDraw=" + reportDraw); 3634 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3635 if (mTranslator != null) { 3636 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3637 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3638 w *= mTranslator.applicationInvertedScale; 3639 h *= mTranslator.applicationInvertedScale; 3640 } 3641 msg.arg1 = w; 3642 msg.arg2 = h; 3643 ResizedInfo ri = new ResizedInfo(); 3644 ri.coveredInsets = new Rect(coveredInsets); 3645 ri.visibleInsets = new Rect(visibleInsets); 3646 ri.newConfig = newConfig; 3647 msg.obj = ri; 3648 sendMessage(msg); 3649 } 3650 3651 private long mInputEventReceiveTimeNanos; 3652 private long mInputEventDeliverTimeNanos; 3653 private long mInputEventDeliverPostImeTimeNanos; 3654 private InputQueue.FinishedCallback mFinishedCallback; 3655 3656 private final InputHandler mInputHandler = new InputHandler() { 3657 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3658 startInputEvent(finishedCallback); 3659 dispatchKey(event, true); 3660 } 3661 3662 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3663 startInputEvent(finishedCallback); 3664 dispatchMotion(event, true); 3665 } 3666 }; 3667 3668 public void dispatchKey(KeyEvent event) { 3669 dispatchKey(event, false); 3670 } 3671 3672 private void dispatchKey(KeyEvent event, boolean sendDone) { 3673 //noinspection ConstantConditions 3674 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3675 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3676 if (DBG) Log.d("keydisp", "==================================================="); 3677 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3678 3679 debug(); 3680 3681 if (DBG) Log.d("keydisp", "==================================================="); 3682 } 3683 } 3684 3685 Message msg = obtainMessage(DISPATCH_KEY); 3686 msg.obj = event; 3687 msg.arg1 = sendDone ? 1 : 0; 3688 3689 if (LOCAL_LOGV) Log.v( 3690 TAG, "sending key " + event + " to " + mView); 3691 3692 sendMessageAtTime(msg, event.getEventTime()); 3693 } 3694 3695 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3696 int source = event.getSource(); 3697 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3698 dispatchPointer(event, sendDone); 3699 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3700 dispatchTrackball(event, sendDone); 3701 } else { 3702 dispatchGenericMotion(event, sendDone); 3703 } 3704 } 3705 3706 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3707 Message msg = obtainMessage(DISPATCH_POINTER); 3708 msg.obj = event; 3709 msg.arg1 = sendDone ? 1 : 0; 3710 sendMessageAtTime(msg, event.getEventTime()); 3711 } 3712 3713 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3714 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3715 msg.obj = event; 3716 msg.arg1 = sendDone ? 1 : 0; 3717 sendMessageAtTime(msg, event.getEventTime()); 3718 } 3719 3720 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3721 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3722 msg.obj = event; 3723 msg.arg1 = sendDone ? 1 : 0; 3724 sendMessageAtTime(msg, event.getEventTime()); 3725 } 3726 3727 public void dispatchAppVisibility(boolean visible) { 3728 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3729 msg.arg1 = visible ? 1 : 0; 3730 sendMessage(msg); 3731 } 3732 3733 public void dispatchGetNewSurface() { 3734 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3735 sendMessage(msg); 3736 } 3737 3738 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3739 Message msg = Message.obtain(); 3740 msg.what = WINDOW_FOCUS_CHANGED; 3741 msg.arg1 = hasFocus ? 1 : 0; 3742 msg.arg2 = inTouchMode ? 1 : 0; 3743 sendMessage(msg); 3744 } 3745 3746 public void dispatchCloseSystemDialogs(String reason) { 3747 Message msg = Message.obtain(); 3748 msg.what = CLOSE_SYSTEM_DIALOGS; 3749 msg.obj = reason; 3750 sendMessage(msg); 3751 } 3752 3753 public void dispatchDragEvent(DragEvent event) { 3754 final int what; 3755 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3756 what = DISPATCH_DRAG_LOCATION_EVENT; 3757 removeMessages(what); 3758 } else { 3759 what = DISPATCH_DRAG_EVENT; 3760 } 3761 Message msg = obtainMessage(what, event); 3762 sendMessage(msg); 3763 } 3764 3765 public void dispatchSystemUiVisibilityChanged(int visibility) { 3766 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3767 } 3768 3769 /** 3770 * The window is getting focus so if there is anything focused/selected 3771 * send an {@link AccessibilityEvent} to announce that. 3772 */ 3773 private void sendAccessibilityEvents() { 3774 if (!mAccessibilityManager.isEnabled()) { 3775 return; 3776 } 3777 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3778 View focusedView = mView.findFocus(); 3779 if (focusedView != null && focusedView != mView) { 3780 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3781 } 3782 } 3783 3784 /** 3785 * Post a callback to send a 3786 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3787 * This event is send at most once every 3788 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3789 */ 3790 private void postSendWindowContentChangedCallback() { 3791 if (mSendWindowContentChangedAccessibilityEvent == null) { 3792 mSendWindowContentChangedAccessibilityEvent = 3793 new SendWindowContentChangedAccessibilityEvent(); 3794 } 3795 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3796 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3797 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3798 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3799 } 3800 } 3801 3802 /** 3803 * Remove a posted callback to send a 3804 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3805 */ 3806 private void removeSendWindowContentChangedCallback() { 3807 if (mSendWindowContentChangedAccessibilityEvent != null) { 3808 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3809 } 3810 } 3811 3812 public boolean showContextMenuForChild(View originalView) { 3813 return false; 3814 } 3815 3816 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3817 return null; 3818 } 3819 3820 public void createContextMenu(ContextMenu menu) { 3821 } 3822 3823 public void childDrawableStateChanged(View child) { 3824 } 3825 3826 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3827 if (mView == null) { 3828 return false; 3829 } 3830 mAccessibilityManager.sendAccessibilityEvent(event); 3831 return true; 3832 } 3833 3834 void checkThread() { 3835 if (mThread != Thread.currentThread()) { 3836 throw new CalledFromWrongThreadException( 3837 "Only the original thread that created a view hierarchy can touch its views."); 3838 } 3839 } 3840 3841 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3842 // ViewAncestor never intercepts touch event, so this can be a no-op 3843 } 3844 3845 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3846 boolean immediate) { 3847 return scrollToRectOrFocus(rectangle, immediate); 3848 } 3849 3850 class TakenSurfaceHolder extends BaseSurfaceHolder { 3851 @Override 3852 public boolean onAllowLockCanvas() { 3853 return mDrawingAllowed; 3854 } 3855 3856 @Override 3857 public void onRelayoutContainer() { 3858 // Not currently interesting -- from changing between fixed and layout size. 3859 } 3860 3861 public void setFormat(int format) { 3862 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3863 } 3864 3865 public void setType(int type) { 3866 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3867 } 3868 3869 @Override 3870 public void onUpdateSurface() { 3871 // We take care of format and type changes on our own. 3872 throw new IllegalStateException("Shouldn't be here"); 3873 } 3874 3875 public boolean isCreating() { 3876 return mIsCreating; 3877 } 3878 3879 @Override 3880 public void setFixedSize(int width, int height) { 3881 throw new UnsupportedOperationException( 3882 "Currently only support sizing from layout"); 3883 } 3884 3885 public void setKeepScreenOn(boolean screenOn) { 3886 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3887 } 3888 } 3889 3890 static class InputMethodCallback extends IInputMethodCallback.Stub { 3891 private WeakReference<ViewRootImpl> mViewAncestor; 3892 3893 public InputMethodCallback(ViewRootImpl viewAncestor) { 3894 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3895 } 3896 3897 public void finishedEvent(int seq, boolean handled) { 3898 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3899 if (viewAncestor != null) { 3900 viewAncestor.dispatchFinishedEvent(seq, handled); 3901 } 3902 } 3903 3904 public void sessionCreated(IInputMethodSession session) { 3905 // Stub -- not for use in the client. 3906 } 3907 } 3908 3909 static class W extends IWindow.Stub { 3910 private final WeakReference<ViewRootImpl> mViewAncestor; 3911 3912 W(ViewRootImpl viewAncestor) { 3913 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3914 } 3915 3916 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3917 boolean reportDraw, Configuration newConfig) { 3918 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3919 if (viewAncestor != null) { 3920 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3921 newConfig); 3922 } 3923 } 3924 3925 public void dispatchAppVisibility(boolean visible) { 3926 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3927 if (viewAncestor != null) { 3928 viewAncestor.dispatchAppVisibility(visible); 3929 } 3930 } 3931 3932 public void dispatchGetNewSurface() { 3933 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3934 if (viewAncestor != null) { 3935 viewAncestor.dispatchGetNewSurface(); 3936 } 3937 } 3938 3939 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3940 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3941 if (viewAncestor != null) { 3942 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3943 } 3944 } 3945 3946 private static int checkCallingPermission(String permission) { 3947 try { 3948 return ActivityManagerNative.getDefault().checkPermission( 3949 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3950 } catch (RemoteException e) { 3951 return PackageManager.PERMISSION_DENIED; 3952 } 3953 } 3954 3955 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3956 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3957 if (viewAncestor != null) { 3958 final View view = viewAncestor.mView; 3959 if (view != null) { 3960 if (checkCallingPermission(Manifest.permission.DUMP) != 3961 PackageManager.PERMISSION_GRANTED) { 3962 throw new SecurityException("Insufficient permissions to invoke" 3963 + " executeCommand() from pid=" + Binder.getCallingPid() 3964 + ", uid=" + Binder.getCallingUid()); 3965 } 3966 3967 OutputStream clientStream = null; 3968 try { 3969 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3970 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3971 } catch (IOException e) { 3972 e.printStackTrace(); 3973 } finally { 3974 if (clientStream != null) { 3975 try { 3976 clientStream.close(); 3977 } catch (IOException e) { 3978 e.printStackTrace(); 3979 } 3980 } 3981 } 3982 } 3983 } 3984 } 3985 3986 public void closeSystemDialogs(String reason) { 3987 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3988 if (viewAncestor != null) { 3989 viewAncestor.dispatchCloseSystemDialogs(reason); 3990 } 3991 } 3992 3993 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 3994 boolean sync) { 3995 if (sync) { 3996 try { 3997 sWindowSession.wallpaperOffsetsComplete(asBinder()); 3998 } catch (RemoteException e) { 3999 } 4000 } 4001 } 4002 4003 public void dispatchWallpaperCommand(String action, int x, int y, 4004 int z, Bundle extras, boolean sync) { 4005 if (sync) { 4006 try { 4007 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4008 } catch (RemoteException e) { 4009 } 4010 } 4011 } 4012 4013 /* Drag/drop */ 4014 public void dispatchDragEvent(DragEvent event) { 4015 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4016 if (viewAncestor != null) { 4017 viewAncestor.dispatchDragEvent(event); 4018 } 4019 } 4020 4021 public void dispatchSystemUiVisibilityChanged(int visibility) { 4022 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4023 if (viewAncestor != null) { 4024 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4025 } 4026 } 4027 } 4028 4029 /** 4030 * Maintains state information for a single trackball axis, generating 4031 * discrete (DPAD) movements based on raw trackball motion. 4032 */ 4033 static final class TrackballAxis { 4034 /** 4035 * The maximum amount of acceleration we will apply. 4036 */ 4037 static final float MAX_ACCELERATION = 20; 4038 4039 /** 4040 * The maximum amount of time (in milliseconds) between events in order 4041 * for us to consider the user to be doing fast trackball movements, 4042 * and thus apply an acceleration. 4043 */ 4044 static final long FAST_MOVE_TIME = 150; 4045 4046 /** 4047 * Scaling factor to the time (in milliseconds) between events to how 4048 * much to multiple/divide the current acceleration. When movement 4049 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4050 * FAST_MOVE_TIME it divides it. 4051 */ 4052 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4053 4054 float position; 4055 float absPosition; 4056 float acceleration = 1; 4057 long lastMoveTime = 0; 4058 int step; 4059 int dir; 4060 int nonAccelMovement; 4061 4062 void reset(int _step) { 4063 position = 0; 4064 acceleration = 1; 4065 lastMoveTime = 0; 4066 step = _step; 4067 dir = 0; 4068 } 4069 4070 /** 4071 * Add trackball movement into the state. If the direction of movement 4072 * has been reversed, the state is reset before adding the 4073 * movement (so that you don't have to compensate for any previously 4074 * collected movement before see the result of the movement in the 4075 * new direction). 4076 * 4077 * @return Returns the absolute value of the amount of movement 4078 * collected so far. 4079 */ 4080 float collect(float off, long time, String axis) { 4081 long normTime; 4082 if (off > 0) { 4083 normTime = (long)(off * FAST_MOVE_TIME); 4084 if (dir < 0) { 4085 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4086 position = 0; 4087 step = 0; 4088 acceleration = 1; 4089 lastMoveTime = 0; 4090 } 4091 dir = 1; 4092 } else if (off < 0) { 4093 normTime = (long)((-off) * FAST_MOVE_TIME); 4094 if (dir > 0) { 4095 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4096 position = 0; 4097 step = 0; 4098 acceleration = 1; 4099 lastMoveTime = 0; 4100 } 4101 dir = -1; 4102 } else { 4103 normTime = 0; 4104 } 4105 4106 // The number of milliseconds between each movement that is 4107 // considered "normal" and will not result in any acceleration 4108 // or deceleration, scaled by the offset we have here. 4109 if (normTime > 0) { 4110 long delta = time - lastMoveTime; 4111 lastMoveTime = time; 4112 float acc = acceleration; 4113 if (delta < normTime) { 4114 // The user is scrolling rapidly, so increase acceleration. 4115 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4116 if (scale > 1) acc *= scale; 4117 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4118 + off + " normTime=" + normTime + " delta=" + delta 4119 + " scale=" + scale + " acc=" + acc); 4120 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4121 } else { 4122 // The user is scrolling slowly, so decrease acceleration. 4123 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4124 if (scale > 1) acc /= scale; 4125 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4126 + off + " normTime=" + normTime + " delta=" + delta 4127 + " scale=" + scale + " acc=" + acc); 4128 acceleration = acc > 1 ? acc : 1; 4129 } 4130 } 4131 position += off; 4132 return (absPosition = Math.abs(position)); 4133 } 4134 4135 /** 4136 * Generate the number of discrete movement events appropriate for 4137 * the currently collected trackball movement. 4138 * 4139 * @param precision The minimum movement required to generate the 4140 * first discrete movement. 4141 * 4142 * @return Returns the number of discrete movements, either positive 4143 * or negative, or 0 if there is not enough trackball movement yet 4144 * for a discrete movement. 4145 */ 4146 int generate(float precision) { 4147 int movement = 0; 4148 nonAccelMovement = 0; 4149 do { 4150 final int dir = position >= 0 ? 1 : -1; 4151 switch (step) { 4152 // If we are going to execute the first step, then we want 4153 // to do this as soon as possible instead of waiting for 4154 // a full movement, in order to make things look responsive. 4155 case 0: 4156 if (absPosition < precision) { 4157 return movement; 4158 } 4159 movement += dir; 4160 nonAccelMovement += dir; 4161 step = 1; 4162 break; 4163 // If we have generated the first movement, then we need 4164 // to wait for the second complete trackball motion before 4165 // generating the second discrete movement. 4166 case 1: 4167 if (absPosition < 2) { 4168 return movement; 4169 } 4170 movement += dir; 4171 nonAccelMovement += dir; 4172 position += dir > 0 ? -2 : 2; 4173 absPosition = Math.abs(position); 4174 step = 2; 4175 break; 4176 // After the first two, we generate discrete movements 4177 // consistently with the trackball, applying an acceleration 4178 // if the trackball is moving quickly. This is a simple 4179 // acceleration on top of what we already compute based 4180 // on how quickly the wheel is being turned, to apply 4181 // a longer increasing acceleration to continuous movement 4182 // in one direction. 4183 default: 4184 if (absPosition < 1) { 4185 return movement; 4186 } 4187 movement += dir; 4188 position += dir >= 0 ? -1 : 1; 4189 absPosition = Math.abs(position); 4190 float acc = acceleration; 4191 acc *= 1.1f; 4192 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4193 break; 4194 } 4195 } while (true); 4196 } 4197 } 4198 4199 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4200 public CalledFromWrongThreadException(String msg) { 4201 super(msg); 4202 } 4203 } 4204 4205 private SurfaceHolder mHolder = new SurfaceHolder() { 4206 // we only need a SurfaceHolder for opengl. it would be nice 4207 // to implement everything else though, especially the callback 4208 // support (opengl doesn't make use of it right now, but eventually 4209 // will). 4210 public Surface getSurface() { 4211 return mSurface; 4212 } 4213 4214 public boolean isCreating() { 4215 return false; 4216 } 4217 4218 public void addCallback(Callback callback) { 4219 } 4220 4221 public void removeCallback(Callback callback) { 4222 } 4223 4224 public void setFixedSize(int width, int height) { 4225 } 4226 4227 public void setSizeFromLayout() { 4228 } 4229 4230 public void setFormat(int format) { 4231 } 4232 4233 public void setType(int type) { 4234 } 4235 4236 public void setKeepScreenOn(boolean screenOn) { 4237 } 4238 4239 public Canvas lockCanvas() { 4240 return null; 4241 } 4242 4243 public Canvas lockCanvas(Rect dirty) { 4244 return null; 4245 } 4246 4247 public void unlockCanvasAndPost(Canvas canvas) { 4248 } 4249 public Rect getSurfaceFrame() { 4250 return null; 4251 } 4252 }; 4253 4254 static RunQueue getRunQueue() { 4255 RunQueue rq = sRunQueues.get(); 4256 if (rq != null) { 4257 return rq; 4258 } 4259 rq = new RunQueue(); 4260 sRunQueues.set(rq); 4261 return rq; 4262 } 4263 4264 /** 4265 * @hide 4266 */ 4267 static final class RunQueue { 4268 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4269 4270 void post(Runnable action) { 4271 postDelayed(action, 0); 4272 } 4273 4274 void postDelayed(Runnable action, long delayMillis) { 4275 HandlerAction handlerAction = new HandlerAction(); 4276 handlerAction.action = action; 4277 handlerAction.delay = delayMillis; 4278 4279 synchronized (mActions) { 4280 mActions.add(handlerAction); 4281 } 4282 } 4283 4284 void removeCallbacks(Runnable action) { 4285 final HandlerAction handlerAction = new HandlerAction(); 4286 handlerAction.action = action; 4287 4288 synchronized (mActions) { 4289 final ArrayList<HandlerAction> actions = mActions; 4290 4291 while (actions.remove(handlerAction)) { 4292 // Keep going 4293 } 4294 } 4295 } 4296 4297 void executeActions(Handler handler) { 4298 synchronized (mActions) { 4299 final ArrayList<HandlerAction> actions = mActions; 4300 final int count = actions.size(); 4301 4302 for (int i = 0; i < count; i++) { 4303 final HandlerAction handlerAction = actions.get(i); 4304 handler.postDelayed(handlerAction.action, handlerAction.delay); 4305 } 4306 4307 actions.clear(); 4308 } 4309 } 4310 4311 private static class HandlerAction { 4312 Runnable action; 4313 long delay; 4314 4315 @Override 4316 public boolean equals(Object o) { 4317 if (this == o) return true; 4318 if (o == null || getClass() != o.getClass()) return false; 4319 4320 HandlerAction that = (HandlerAction) o; 4321 return !(action != null ? !action.equals(that.action) : that.action != null); 4322 4323 } 4324 4325 @Override 4326 public int hashCode() { 4327 int result = action != null ? action.hashCode() : 0; 4328 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4329 return result; 4330 } 4331 } 4332 } 4333 4334 /** 4335 * Class for managing the accessibility interaction connection 4336 * based on the global accessibility state. 4337 */ 4338 final class AccessibilityInteractionConnectionManager 4339 implements AccessibilityStateChangeListener { 4340 public void onAccessibilityStateChanged(boolean enabled) { 4341 if (enabled) { 4342 ensureConnection(); 4343 } else { 4344 ensureNoConnection(); 4345 } 4346 } 4347 4348 public void ensureConnection() { 4349 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4350 if (!registered) { 4351 mAttachInfo.mAccessibilityWindowId = 4352 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4353 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4354 } 4355 } 4356 4357 public void ensureNoConnection() { 4358 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4359 if (registered) { 4360 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4361 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4362 } 4363 } 4364 } 4365 4366 /** 4367 * This class is an interface this ViewAncestor provides to the 4368 * AccessibilityManagerService to the latter can interact with 4369 * the view hierarchy in this ViewAncestor. 4370 */ 4371 final class AccessibilityInteractionConnection 4372 extends IAccessibilityInteractionConnection.Stub { 4373 private final WeakReference<ViewRootImpl> mViewAncestor; 4374 4375 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4376 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4377 } 4378 4379 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4380 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4381 int interrogatingPid, long interrogatingTid) { 4382 if (mViewAncestor.get() != null) { 4383 getAccessibilityInteractionController() 4384 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4385 interactionId, callback, interrogatingPid, interrogatingTid); 4386 } 4387 } 4388 4389 public void performAccessibilityAction(int accessibilityId, int action, 4390 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4391 int interogatingPid, long interrogatingTid) { 4392 if (mViewAncestor.get() != null) { 4393 getAccessibilityInteractionController() 4394 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4395 callback, interogatingPid, interrogatingTid); 4396 } 4397 } 4398 4399 public void findAccessibilityNodeInfoByViewId(int viewId, 4400 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4401 int interrogatingPid, long interrogatingTid) { 4402 if (mViewAncestor.get() != null) { 4403 getAccessibilityInteractionController() 4404 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4405 interrogatingPid, interrogatingTid); 4406 } 4407 } 4408 4409 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4410 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4411 int interrogatingPid, long interrogatingTid) { 4412 if (mViewAncestor.get() != null) { 4413 getAccessibilityInteractionController() 4414 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4415 interactionId, callback, interrogatingPid, interrogatingTid); 4416 } 4417 } 4418 } 4419 4420 /** 4421 * Class for managing accessibility interactions initiated from the system 4422 * and targeting the view hierarchy. A *ClientThread method is to be 4423 * called from the interaction connection this ViewAncestor gives the 4424 * system to talk to it and a corresponding *UiThread method that is executed 4425 * on the UI thread. 4426 */ 4427 final class AccessibilityInteractionController { 4428 private static final int POOL_SIZE = 5; 4429 4430 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4431 new FindByAccessibilitytIdPredicate(); 4432 4433 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4434 new ArrayList<AccessibilityNodeInfo>(); 4435 4436 // Reusable poolable arguments for interacting with the view hierarchy 4437 // to fit more arguments than Message and to avoid sharing objects between 4438 // two messages since several threads can send messages concurrently. 4439 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4440 new PoolableManager<SomeArgs>() { 4441 public SomeArgs newInstance() { 4442 return new SomeArgs(); 4443 } 4444 4445 public void onAcquired(SomeArgs info) { 4446 /* do nothing */ 4447 } 4448 4449 public void onReleased(SomeArgs info) { 4450 info.clear(); 4451 } 4452 }, POOL_SIZE) 4453 ); 4454 4455 public class SomeArgs implements Poolable<SomeArgs> { 4456 private SomeArgs mNext; 4457 private boolean mIsPooled; 4458 4459 public Object arg1; 4460 public Object arg2; 4461 public int argi1; 4462 public int argi2; 4463 public int argi3; 4464 4465 public SomeArgs getNextPoolable() { 4466 return mNext; 4467 } 4468 4469 public boolean isPooled() { 4470 return mIsPooled; 4471 } 4472 4473 public void setNextPoolable(SomeArgs args) { 4474 mNext = args; 4475 } 4476 4477 public void setPooled(boolean isPooled) { 4478 mIsPooled = isPooled; 4479 } 4480 4481 private void clear() { 4482 arg1 = null; 4483 arg2 = null; 4484 argi1 = 0; 4485 argi2 = 0; 4486 argi3 = 0; 4487 } 4488 } 4489 4490 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4491 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4492 int interrogatingPid, long interrogatingTid) { 4493 Message message = Message.obtain(); 4494 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4495 message.arg1 = accessibilityId; 4496 message.arg2 = interactionId; 4497 message.obj = callback; 4498 // If the interrogation is performed by the same thread as the main UI 4499 // thread in this process, set the message as a static reference so 4500 // after this call completes the same thread but in the interrogating 4501 // client can handle the message to generate the result. 4502 if (interrogatingPid == Process.myPid() 4503 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4504 message.setTarget(ViewRootImpl.this); 4505 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4506 } else { 4507 sendMessage(message); 4508 } 4509 } 4510 4511 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4512 final int accessibilityId = message.arg1; 4513 final int interactionId = message.arg2; 4514 final IAccessibilityInteractionConnectionCallback callback = 4515 (IAccessibilityInteractionConnectionCallback) message.obj; 4516 4517 AccessibilityNodeInfo info = null; 4518 try { 4519 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4520 predicate.init(accessibilityId); 4521 View root = ViewRootImpl.this.mView; 4522 View target = root.findViewByPredicate(predicate); 4523 if (target != null && target.isShown()) { 4524 info = target.createAccessibilityNodeInfo(); 4525 } 4526 } finally { 4527 try { 4528 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4529 } catch (RemoteException re) { 4530 /* ignore - the other side will time out */ 4531 } 4532 } 4533 } 4534 4535 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4536 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4537 long interrogatingTid) { 4538 Message message = Message.obtain(); 4539 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4540 message.arg1 = viewId; 4541 message.arg2 = interactionId; 4542 message.obj = callback; 4543 // If the interrogation is performed by the same thread as the main UI 4544 // thread in this process, set the message as a static reference so 4545 // after this call completes the same thread but in the interrogating 4546 // client can handle the message to generate the result. 4547 if (interrogatingPid == Process.myPid() 4548 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4549 message.setTarget(ViewRootImpl.this); 4550 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4551 } else { 4552 sendMessage(message); 4553 } 4554 } 4555 4556 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4557 final int viewId = message.arg1; 4558 final int interactionId = message.arg2; 4559 final IAccessibilityInteractionConnectionCallback callback = 4560 (IAccessibilityInteractionConnectionCallback) message.obj; 4561 4562 AccessibilityNodeInfo info = null; 4563 try { 4564 View root = ViewRootImpl.this.mView; 4565 View target = root.findViewById(viewId); 4566 if (target != null && target.isShown()) { 4567 info = target.createAccessibilityNodeInfo(); 4568 } 4569 } finally { 4570 try { 4571 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4572 } catch (RemoteException re) { 4573 /* ignore - the other side will time out */ 4574 } 4575 } 4576 } 4577 4578 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4579 int accessibilityViewId, int interactionId, 4580 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4581 long interrogatingTid) { 4582 Message message = Message.obtain(); 4583 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4584 SomeArgs args = mPool.acquire(); 4585 args.arg1 = text; 4586 args.argi1 = accessibilityViewId; 4587 args.argi2 = interactionId; 4588 args.arg2 = callback; 4589 message.obj = args; 4590 // If the interrogation is performed by the same thread as the main UI 4591 // thread in this process, set the message as a static reference so 4592 // after this call completes the same thread but in the interrogating 4593 // client can handle the message to generate the result. 4594 if (interrogatingPid == Process.myPid() 4595 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4596 message.setTarget(ViewRootImpl.this); 4597 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4598 } else { 4599 sendMessage(message); 4600 } 4601 } 4602 4603 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4604 SomeArgs args = (SomeArgs) message.obj; 4605 final String text = (String) args.arg1; 4606 final int accessibilityViewId = args.argi1; 4607 final int interactionId = args.argi2; 4608 final IAccessibilityInteractionConnectionCallback callback = 4609 (IAccessibilityInteractionConnectionCallback) args.arg2; 4610 mPool.release(args); 4611 4612 List<AccessibilityNodeInfo> infos = null; 4613 try { 4614 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4615 foundViews.clear(); 4616 4617 View root; 4618 if (accessibilityViewId != View.NO_ID) { 4619 root = findViewByAccessibilityId(accessibilityViewId); 4620 } else { 4621 root = ViewRootImpl.this.mView; 4622 } 4623 4624 if (root == null || !root.isShown()) { 4625 return; 4626 } 4627 4628 root.findViewsWithText(foundViews, text); 4629 if (foundViews.isEmpty()) { 4630 return; 4631 } 4632 4633 infos = mTempAccessibilityNodeInfoList; 4634 infos.clear(); 4635 4636 final int viewCount = foundViews.size(); 4637 for (int i = 0; i < viewCount; i++) { 4638 View foundView = foundViews.get(i); 4639 if (foundView.isShown()) { 4640 infos.add(foundView.createAccessibilityNodeInfo()); 4641 } 4642 } 4643 } finally { 4644 try { 4645 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4646 } catch (RemoteException re) { 4647 /* ignore - the other side will time out */ 4648 } 4649 } 4650 } 4651 4652 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4653 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4654 int interogatingPid, long interrogatingTid) { 4655 Message message = Message.obtain(); 4656 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4657 SomeArgs args = mPool.acquire(); 4658 args.argi1 = accessibilityId; 4659 args.argi2 = action; 4660 args.argi3 = interactionId; 4661 args.arg1 = callback; 4662 message.obj = args; 4663 // If the interrogation is performed by the same thread as the main UI 4664 // thread in this process, set the message as a static reference so 4665 // after this call completes the same thread but in the interrogating 4666 // client can handle the message to generate the result. 4667 if (interogatingPid == Process.myPid() 4668 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4669 message.setTarget(ViewRootImpl.this); 4670 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4671 } else { 4672 sendMessage(message); 4673 } 4674 } 4675 4676 public void perfromAccessibilityActionUiThread(Message message) { 4677 SomeArgs args = (SomeArgs) message.obj; 4678 final int accessibilityId = args.argi1; 4679 final int action = args.argi2; 4680 final int interactionId = args.argi3; 4681 final IAccessibilityInteractionConnectionCallback callback = 4682 (IAccessibilityInteractionConnectionCallback) args.arg1; 4683 mPool.release(args); 4684 4685 boolean succeeded = false; 4686 try { 4687 switch (action) { 4688 case AccessibilityNodeInfo.ACTION_FOCUS: { 4689 succeeded = performActionFocus(accessibilityId); 4690 } break; 4691 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4692 succeeded = performActionClearFocus(accessibilityId); 4693 } break; 4694 case AccessibilityNodeInfo.ACTION_SELECT: { 4695 succeeded = performActionSelect(accessibilityId); 4696 } break; 4697 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4698 succeeded = performActionClearSelection(accessibilityId); 4699 } break; 4700 } 4701 } finally { 4702 try { 4703 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4704 } catch (RemoteException re) { 4705 /* ignore - the other side will time out */ 4706 } 4707 } 4708 } 4709 4710 private boolean performActionFocus(int accessibilityId) { 4711 View target = findViewByAccessibilityId(accessibilityId); 4712 if (target == null) { 4713 return false; 4714 } 4715 // Get out of touch mode since accessibility wants to move focus around. 4716 ensureTouchMode(false); 4717 return target.requestFocus(); 4718 } 4719 4720 private boolean performActionClearFocus(int accessibilityId) { 4721 View target = findViewByAccessibilityId(accessibilityId); 4722 if (target == null) { 4723 return false; 4724 } 4725 if (!target.isFocused()) { 4726 return false; 4727 } 4728 target.clearFocus(); 4729 return !target.isFocused(); 4730 } 4731 4732 private boolean performActionSelect(int accessibilityId) { 4733 View target = findViewByAccessibilityId(accessibilityId); 4734 if (target == null) { 4735 return false; 4736 } 4737 if (target.isSelected()) { 4738 return false; 4739 } 4740 target.setSelected(true); 4741 return target.isSelected(); 4742 } 4743 4744 private boolean performActionClearSelection(int accessibilityId) { 4745 View target = findViewByAccessibilityId(accessibilityId); 4746 if (target == null) { 4747 return false; 4748 } 4749 if (!target.isSelected()) { 4750 return false; 4751 } 4752 target.setSelected(false); 4753 return !target.isSelected(); 4754 } 4755 4756 private View findViewByAccessibilityId(int accessibilityId) { 4757 View root = ViewRootImpl.this.mView; 4758 if (root == null) { 4759 return null; 4760 } 4761 mFindByAccessibilityIdPredicate.init(accessibilityId); 4762 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4763 return (foundView != null && foundView.isShown()) ? foundView : null; 4764 } 4765 4766 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4767 public int mSerchedId; 4768 4769 public void init(int searchedId) { 4770 mSerchedId = searchedId; 4771 } 4772 4773 public boolean apply(View view) { 4774 return (view.getAccessibilityViewId() == mSerchedId); 4775 } 4776 } 4777 } 4778 4779 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4780 public volatile boolean mIsPending; 4781 4782 public void run() { 4783 if (mView != null) { 4784 // Check again for accessibility state since this is executed delayed. 4785 AccessibilityManager accessibilityManager = 4786 AccessibilityManager.getInstance(mView.mContext); 4787 if (accessibilityManager.isEnabled()) { 4788 // Send the event directly since we do not want to append the 4789 // source text because this is the text for the entire window 4790 // and we just want to notify that the content has changed. 4791 AccessibilityEvent event = AccessibilityEvent.obtain( 4792 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4793 mView.onInitializeAccessibilityEvent(event); 4794 accessibilityManager.sendAccessibilityEvent(event); 4795 } 4796 mIsPending = false; 4797 } 4798 } 4799 } 4800} 4801