ViewRootImpl.java revision 2f87014ea2f177e715032b07004d05e2549a63a8
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.animation.ValueAnimator; 22import android.app.ActivityManagerNative; 23import android.content.ClipDescription; 24import android.content.ComponentCallbacks; 25import android.content.ComponentCallbacks2; 26import android.content.Context; 27import android.content.pm.ApplicationInfo; 28import android.content.pm.PackageManager; 29import android.content.res.CompatibilityInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.graphics.Canvas; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.Region; 40import android.graphics.drawable.Drawable; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.LatencyTimer; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.PowerManager; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemClock; 54import android.os.SystemProperties; 55import android.os.Trace; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.EventLog; 59import android.util.Log; 60import android.util.Slog; 61import android.util.TypedValue; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.policy.PolicyManager; 79import com.android.internal.view.BaseSurfaceHolder; 80import com.android.internal.view.IInputMethodCallback; 81import com.android.internal.view.IInputMethodSession; 82import com.android.internal.view.RootViewSurfaceTaker; 83 84import java.io.IOException; 85import java.io.OutputStream; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.HashSet; 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 implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 114 private static final boolean USE_RENDER_THREAD = false; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 121 122 private static final boolean MEASURE_LATENCY = false; 123 private static LatencyTimer lt; 124 125 /** 126 * Maximum time we allow the user to roll the trackball enough to generate 127 * a key event, before resetting the counters. 128 */ 129 static final int MAX_TRACKBALL_DELAY = 250; 130 131 static IWindowSession sWindowSession; 132 133 static final Object mStaticInit = new Object(); 134 static boolean mInitialized = false; 135 136 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 137 138 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 139 static boolean sFirstDrawComplete = false; 140 141 static final ArrayList<ComponentCallbacks> sConfigCallbacks 142 = new ArrayList<ComponentCallbacks>(); 143 144 private static boolean sUseRenderThread = false; 145 private static boolean sRenderThreadQueried = false; 146 private static final Object[] sRenderThreadQueryLock = new Object[0]; 147 148 long mLastTrackballTime = 0; 149 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 150 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 151 152 int mLastJoystickXDirection; 153 int mLastJoystickYDirection; 154 int mLastJoystickXKeyCode; 155 int mLastJoystickYKeyCode; 156 157 final int[] mTmpLocation = new int[2]; 158 159 final TypedValue mTmpValue = new TypedValue(); 160 161 final InputMethodCallback mInputMethodCallback; 162 final Thread mThread; 163 164 final WindowLeaked mLocation; 165 166 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 167 168 final W mWindow; 169 170 final int mTargetSdkVersion; 171 172 int mSeq; 173 174 View mView; 175 View mFocusedView; 176 View mRealFocusedView; // this is not set to null in touch mode 177 View mOldFocusedView; 178 179 View mAccessibilityFocusedHost; 180 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 181 182 int mViewVisibility; 183 boolean mAppVisible = true; 184 int mOrigWindowType = -1; 185 186 // Set to true if the owner of this window is in the stopped state, 187 // so the window should no longer be active. 188 boolean mStopped = false; 189 190 boolean mLastInCompatMode = false; 191 192 SurfaceHolder.Callback2 mSurfaceHolderCallback; 193 BaseSurfaceHolder mSurfaceHolder; 194 boolean mIsCreating; 195 boolean mDrawingAllowed; 196 197 final Region mTransparentRegion; 198 final Region mPreviousTransparentRegion; 199 200 int mWidth; 201 int mHeight; 202 Rect mDirty; 203 final Rect mCurrentDirty = new Rect(); 204 final Rect mPreviousDirty = new Rect(); 205 boolean mIsAnimating; 206 207 CompatibilityInfo.Translator mTranslator; 208 209 final View.AttachInfo mAttachInfo; 210 InputChannel mInputChannel; 211 InputQueue.Callback mInputQueueCallback; 212 InputQueue mInputQueue; 213 FallbackEventHandler mFallbackEventHandler; 214 Choreographer mChoreographer; 215 216 final Rect mTempRect; // used in the transaction to not thrash the heap. 217 final Rect mVisRect; // used to retrieve visible rect of focused view. 218 219 boolean mTraversalScheduled; 220 int mTraversalBarrier; 221 long mLastTraversalFinishedTimeNanos; 222 long mLastDrawFinishedTimeNanos; 223 boolean mWillDrawSoon; 224 boolean mFitSystemWindowsRequested; 225 boolean mLayoutRequested; 226 boolean mFirst; 227 boolean mReportNextDraw; 228 boolean mFullRedrawNeeded; 229 boolean mNewSurfaceNeeded; 230 boolean mHasHadWindowFocus; 231 boolean mLastWasImTarget; 232 boolean mWindowsAnimating; 233 int mLastSystemUiVisibility; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 CompatibilityInfoHolder mCompatibilityInfo; 256 257 /*package*/ int mAddNesting; 258 259 // These are accessed by multiple threads. 260 final Rect mWinFrame; // frame given by window manager. 261 262 final Rect mPendingVisibleInsets = new Rect(); 263 final Rect mPendingContentInsets = new Rect(); 264 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 265 = new ViewTreeObserver.InternalInsetsInfo(); 266 267 final Rect mFitSystemWindowsInsets = new Rect(); 268 269 final Configuration mLastConfiguration = new Configuration(); 270 final Configuration mPendingConfiguration = new Configuration(); 271 272 class ResizedInfo { 273 Rect coveredInsets; 274 Rect visibleInsets; 275 Configuration newConfig; 276 } 277 278 boolean mScrollMayChange; 279 int mSoftInputMode; 280 View mLastScrolledFocus; 281 int mScrollY; 282 int mCurScrollY; 283 Scroller mScroller; 284 HardwareLayer mResizeBuffer; 285 long mResizeBufferStartTime; 286 int mResizeBufferDuration; 287 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 288 private ArrayList<LayoutTransition> mPendingTransitions; 289 290 final ViewConfiguration mViewConfiguration; 291 292 /* Drag/drop */ 293 ClipDescription mDragDescription; 294 View mCurrentDragView; 295 volatile Object mLocalDragState; 296 final PointF mDragPoint = new PointF(); 297 final PointF mLastTouchPoint = new PointF(); 298 299 private boolean mProfileRendering; 300 private Thread mRenderProfiler; 301 private volatile boolean mRenderProfilingEnabled; 302 303 // Variables to track frames per second, enabled via DEBUG_FPS flag 304 private long mFpsStartTime = -1; 305 private long mFpsPrevTime = -1; 306 private int mFpsNumFrames; 307 308 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 309 310 /** 311 * see {@link #playSoundEffect(int)} 312 */ 313 AudioManager mAudioManager; 314 315 final AccessibilityManager mAccessibilityManager; 316 317 AccessibilityInteractionController mAccessibilityInteractionController; 318 319 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 320 321 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 322 323 HashSet<View> mTempHashSet; 324 325 private final int mDensity; 326 327 final KeyCharacterMap.FallbackAction mFallbackAction = new KeyCharacterMap.FallbackAction(); 328 329 /** 330 * Consistency verifier for debugging purposes. 331 */ 332 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 333 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 334 new InputEventConsistencyVerifier(this, 0) : null; 335 336 public static IWindowSession getWindowSession(Looper mainLooper) { 337 synchronized (mStaticInit) { 338 if (!mInitialized) { 339 try { 340 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 341 IWindowManager windowManager = Display.getWindowManager(); 342 sWindowSession = windowManager.openSession( 343 imm.getClient(), imm.getInputContext()); 344 float animatorScale = windowManager.getAnimationScale(2); 345 ValueAnimator.setDurationScale(animatorScale); 346 mInitialized = true; 347 } catch (RemoteException e) { 348 } 349 } 350 return sWindowSession; 351 } 352 } 353 354 static final class SystemUiVisibilityInfo { 355 int seq; 356 int globalVisibility; 357 int localValue; 358 int localChanges; 359 } 360 361 public ViewRootImpl(Context context) { 362 super(); 363 364 if (MEASURE_LATENCY) { 365 if (lt == null) { 366 lt = new LatencyTimer(100, 1000); 367 } 368 } 369 370 // Initialize the statics when this class is first instantiated. This is 371 // done here instead of in the static block because Zygote does not 372 // allow the spawning of threads. 373 getWindowSession(context.getMainLooper()); 374 375 mThread = Thread.currentThread(); 376 mLocation = new WindowLeaked(null); 377 mLocation.fillInStackTrace(); 378 mWidth = -1; 379 mHeight = -1; 380 mDirty = new Rect(); 381 mTempRect = new Rect(); 382 mVisRect = new Rect(); 383 mWinFrame = new Rect(); 384 mWindow = new W(this); 385 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 386 mInputMethodCallback = new InputMethodCallback(this); 387 mViewVisibility = View.GONE; 388 mTransparentRegion = new Region(); 389 mPreviousTransparentRegion = new Region(); 390 mFirst = true; // true for the first time the view is added 391 mAdded = false; 392 mAccessibilityManager = AccessibilityManager.getInstance(context); 393 mAccessibilityInteractionConnectionManager = 394 new AccessibilityInteractionConnectionManager(); 395 mAccessibilityManager.addAccessibilityStateChangeListener( 396 mAccessibilityInteractionConnectionManager); 397 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 398 mViewConfiguration = ViewConfiguration.get(context); 399 mDensity = context.getResources().getDisplayMetrics().densityDpi; 400 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 401 mProfileRendering = Boolean.parseBoolean( 402 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 403 mChoreographer = Choreographer.getInstance(); 404 405 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 406 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 407 } 408 409 /** 410 * @return True if the application requests the use of a separate render thread, 411 * false otherwise 412 */ 413 private static boolean isRenderThreadRequested(Context context) { 414 if (USE_RENDER_THREAD) { 415 synchronized (sRenderThreadQueryLock) { 416 if (!sRenderThreadQueried) { 417 final PackageManager packageManager = context.getPackageManager(); 418 final String packageName = context.getApplicationInfo().packageName; 419 try { 420 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 421 PackageManager.GET_META_DATA); 422 if (applicationInfo.metaData != null) { 423 sUseRenderThread = applicationInfo.metaData.getBoolean( 424 "android.graphics.renderThread", false); 425 } 426 } catch (PackageManager.NameNotFoundException e) { 427 } finally { 428 sRenderThreadQueried = true; 429 } 430 } 431 return sUseRenderThread; 432 } 433 } else { 434 return false; 435 } 436 } 437 438 public static void addFirstDrawHandler(Runnable callback) { 439 synchronized (sFirstDrawHandlers) { 440 if (!sFirstDrawComplete) { 441 sFirstDrawHandlers.add(callback); 442 } 443 } 444 } 445 446 public static void addConfigCallback(ComponentCallbacks callback) { 447 synchronized (sConfigCallbacks) { 448 sConfigCallbacks.add(callback); 449 } 450 } 451 452 // FIXME for perf testing only 453 private boolean mProfile = false; 454 455 /** 456 * Call this to profile the next traversal call. 457 * FIXME for perf testing only. Remove eventually 458 */ 459 public void profile() { 460 mProfile = true; 461 } 462 463 /** 464 * Indicates whether we are in touch mode. Calling this method triggers an IPC 465 * call and should be avoided whenever possible. 466 * 467 * @return True, if the device is in touch mode, false otherwise. 468 * 469 * @hide 470 */ 471 static boolean isInTouchMode() { 472 if (mInitialized) { 473 try { 474 return sWindowSession.getInTouchMode(); 475 } catch (RemoteException e) { 476 } 477 } 478 return false; 479 } 480 481 /** 482 * We have one child 483 */ 484 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 485 synchronized (this) { 486 if (mView == null) { 487 mView = view; 488 mFallbackEventHandler.setView(view); 489 mWindowAttributes.copyFrom(attrs); 490 attrs = mWindowAttributes; 491 492 if (view instanceof RootViewSurfaceTaker) { 493 mSurfaceHolderCallback = 494 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 495 if (mSurfaceHolderCallback != null) { 496 mSurfaceHolder = new TakenSurfaceHolder(); 497 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 498 } 499 } 500 501 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 502 mTranslator = compatibilityInfo.getTranslator(); 503 504 // If the application owns the surface, don't enable hardware acceleration 505 if (mSurfaceHolder == null) { 506 enableHardwareAcceleration(mView.getContext(), attrs); 507 } 508 509 boolean restore = false; 510 if (mTranslator != null) { 511 mSurface.setCompatibilityTranslator(mTranslator); 512 restore = true; 513 attrs.backup(); 514 mTranslator.translateWindowLayout(attrs); 515 } 516 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 517 518 if (!compatibilityInfo.supportsScreen()) { 519 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 520 mLastInCompatMode = true; 521 } 522 523 mSoftInputMode = attrs.softInputMode; 524 mWindowAttributesChanged = true; 525 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 526 mAttachInfo.mRootView = view; 527 mAttachInfo.mScalingRequired = mTranslator != null; 528 mAttachInfo.mApplicationScale = 529 mTranslator == null ? 1.0f : mTranslator.applicationScale; 530 if (panelParentView != null) { 531 mAttachInfo.mPanelParentWindowToken 532 = panelParentView.getApplicationWindowToken(); 533 } 534 mAdded = true; 535 int res; /* = WindowManagerImpl.ADD_OKAY; */ 536 537 // Schedule the first layout -before- adding to the window 538 // manager, to make sure we do the relayout before receiving 539 // any other events from the system. 540 requestLayout(); 541 if ((mWindowAttributes.inputFeatures 542 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 543 mInputChannel = new InputChannel(); 544 } 545 try { 546 mOrigWindowType = mWindowAttributes.type; 547 mAttachInfo.mRecomputeGlobalAttributes = true; 548 collectViewAttributes(); 549 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 550 getHostVisibility(), mAttachInfo.mContentInsets, 551 mInputChannel); 552 } catch (RemoteException e) { 553 mAdded = false; 554 mView = null; 555 mAttachInfo.mRootView = null; 556 mInputChannel = null; 557 mFallbackEventHandler.setView(null); 558 unscheduleTraversals(); 559 throw new RuntimeException("Adding window failed", e); 560 } finally { 561 if (restore) { 562 attrs.restore(); 563 } 564 } 565 566 if (mTranslator != null) { 567 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 568 } 569 mPendingContentInsets.set(mAttachInfo.mContentInsets); 570 mPendingVisibleInsets.set(0, 0, 0, 0); 571 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 572 if (res < WindowManagerImpl.ADD_OKAY) { 573 mView = null; 574 mAttachInfo.mRootView = null; 575 mAdded = false; 576 mFallbackEventHandler.setView(null); 577 unscheduleTraversals(); 578 switch (res) { 579 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 580 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 581 throw new WindowManagerImpl.BadTokenException( 582 "Unable to add window -- token " + attrs.token 583 + " is not valid; is your activity running?"); 584 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 585 throw new WindowManagerImpl.BadTokenException( 586 "Unable to add window -- token " + attrs.token 587 + " is not for an application"); 588 case WindowManagerImpl.ADD_APP_EXITING: 589 throw new WindowManagerImpl.BadTokenException( 590 "Unable to add window -- app for token " + attrs.token 591 + " is exiting"); 592 case WindowManagerImpl.ADD_DUPLICATE_ADD: 593 throw new WindowManagerImpl.BadTokenException( 594 "Unable to add window -- window " + mWindow 595 + " has already been added"); 596 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 597 // Silently ignore -- we would have just removed it 598 // right away, anyway. 599 return; 600 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 601 throw new WindowManagerImpl.BadTokenException( 602 "Unable to add window " + mWindow + 603 " -- another window of this type already exists"); 604 case WindowManagerImpl.ADD_PERMISSION_DENIED: 605 throw new WindowManagerImpl.BadTokenException( 606 "Unable to add window " + mWindow + 607 " -- permission denied for this window type"); 608 } 609 throw new RuntimeException( 610 "Unable to add window -- unknown error code " + res); 611 } 612 613 if (view instanceof RootViewSurfaceTaker) { 614 mInputQueueCallback = 615 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 616 } 617 if (mInputChannel != null) { 618 if (mInputQueueCallback != null) { 619 mInputQueue = new InputQueue(mInputChannel); 620 mInputQueueCallback.onInputQueueCreated(mInputQueue); 621 } else { 622 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 623 Looper.myLooper()); 624 } 625 } 626 627 view.assignParent(this); 628 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 629 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 630 631 if (mAccessibilityManager.isEnabled()) { 632 mAccessibilityInteractionConnectionManager.ensureConnection(); 633 } 634 635 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 636 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 637 } 638 639 setAccessibilityFocusedHost(null); 640 } 641 } 642 } 643 644 void destroyHardwareResources() { 645 if (mAttachInfo.mHardwareRenderer != null) { 646 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 647 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 648 } 649 mAttachInfo.mHardwareRenderer.destroy(false); 650 } 651 } 652 653 void terminateHardwareResources() { 654 if (mAttachInfo.mHardwareRenderer != null) { 655 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 656 mAttachInfo.mHardwareRenderer.destroy(false); 657 } 658 } 659 660 void destroyHardwareLayers() { 661 if (mThread != Thread.currentThread()) { 662 if (mAttachInfo.mHardwareRenderer != null && 663 mAttachInfo.mHardwareRenderer.isEnabled()) { 664 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 665 } 666 } else { 667 if (mAttachInfo.mHardwareRenderer != null && 668 mAttachInfo.mHardwareRenderer.isEnabled()) { 669 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 670 } 671 } 672 } 673 674 public void attachFunctor(int functor) { 675 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 676 mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 677 } 678 } 679 680 public void detachFunctor(int functor) { 681 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 682 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 683 } 684 } 685 686 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 687 mAttachInfo.mHardwareAccelerated = false; 688 mAttachInfo.mHardwareAccelerationRequested = false; 689 690 // Don't enable hardware acceleration when the application is in compatibility mode 691 if (mTranslator != null) return; 692 693 // Try to enable hardware acceleration if requested 694 final boolean hardwareAccelerated = 695 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 696 697 if (hardwareAccelerated) { 698 if (!HardwareRenderer.isAvailable()) { 699 return; 700 } 701 702 // Persistent processes (including the system) should not do 703 // accelerated rendering on low-end devices. In that case, 704 // sRendererDisabled will be set. In addition, the system process 705 // itself should never do accelerated rendering. In that case, both 706 // sRendererDisabled and sSystemRendererDisabled are set. When 707 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 708 // can be used by code on the system process to escape that and enable 709 // HW accelerated drawing. (This is basically for the lock screen.) 710 711 final boolean fakeHwAccelerated = (attrs.privateFlags & 712 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 713 final boolean forceHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 715 716 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 717 && forceHwAccelerated)) { 718 // Don't enable hardware acceleration when we're not on the main thread 719 if (!HardwareRenderer.sSystemRendererDisabled && 720 Looper.getMainLooper() != Looper.myLooper()) { 721 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 722 + "acceleration outside of the main thread, aborting"); 723 return; 724 } 725 726 final boolean renderThread = isRenderThreadRequested(context); 727 if (renderThread) { 728 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 729 } 730 731 if (mAttachInfo.mHardwareRenderer != null) { 732 mAttachInfo.mHardwareRenderer.destroy(true); 733 } 734 735 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 736 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 737 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 738 = mAttachInfo.mHardwareRenderer != null; 739 740 } else if (fakeHwAccelerated) { 741 // The window had wanted to use hardware acceleration, but this 742 // is not allowed in its process. By setting this flag, it can 743 // still render as if it was accelerated. This is basically for 744 // the preview windows the window manager shows for launching 745 // applications, so they will look more like the app being launched. 746 mAttachInfo.mHardwareAccelerationRequested = true; 747 } 748 } 749 } 750 751 public View getView() { 752 return mView; 753 } 754 755 final WindowLeaked getLocation() { 756 return mLocation; 757 } 758 759 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 760 synchronized (this) { 761 int oldSoftInputMode = mWindowAttributes.softInputMode; 762 // preserve compatible window flag if exists. 763 int compatibleWindowFlag = 764 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 765 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 766 mWindowAttributes.flags |= compatibleWindowFlag; 767 768 if (newView) { 769 mSoftInputMode = attrs.softInputMode; 770 requestLayout(); 771 } 772 // Don't lose the mode we last auto-computed. 773 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 774 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 775 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 776 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 777 | (oldSoftInputMode 778 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 779 } 780 mWindowAttributesChanged = true; 781 scheduleTraversals(); 782 } 783 } 784 785 void handleAppVisibility(boolean visible) { 786 if (mAppVisible != visible) { 787 mAppVisible = visible; 788 scheduleTraversals(); 789 } 790 } 791 792 void handleGetNewSurface() { 793 mNewSurfaceNeeded = true; 794 mFullRedrawNeeded = true; 795 scheduleTraversals(); 796 } 797 798 void handleScreenStateChange(boolean on) { 799 if (on != mAttachInfo.mScreenOn) { 800 mAttachInfo.mScreenOn = on; 801 if (mView != null) { 802 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 803 } 804 if (on) { 805 mFullRedrawNeeded = true; 806 scheduleTraversals(); 807 } 808 } 809 } 810 811 /** 812 * {@inheritDoc} 813 */ 814 public void requestFitSystemWindows() { 815 checkThread(); 816 mFitSystemWindowsRequested = true; 817 scheduleTraversals(); 818 } 819 820 /** 821 * {@inheritDoc} 822 */ 823 public void requestLayout() { 824 checkThread(); 825 mLayoutRequested = true; 826 scheduleTraversals(); 827 } 828 829 /** 830 * {@inheritDoc} 831 */ 832 public boolean isLayoutRequested() { 833 return mLayoutRequested; 834 } 835 836 void invalidate() { 837 mDirty.set(0, 0, mWidth, mHeight); 838 scheduleTraversals(); 839 } 840 841 public void invalidateChild(View child, Rect dirty) { 842 invalidateChildInParent(null, dirty); 843 } 844 845 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 846 checkThread(); 847 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 848 849 if (dirty == null) { 850 invalidate(); 851 return null; 852 } 853 854 if (mCurScrollY != 0 || mTranslator != null) { 855 mTempRect.set(dirty); 856 dirty = mTempRect; 857 if (mCurScrollY != 0) { 858 dirty.offset(0, -mCurScrollY); 859 } 860 if (mTranslator != null) { 861 mTranslator.translateRectInAppWindowToScreen(dirty); 862 } 863 if (mAttachInfo.mScalingRequired) { 864 dirty.inset(-1, -1); 865 } 866 } 867 868 final Rect localDirty = mDirty; 869 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 870 mAttachInfo.mSetIgnoreDirtyState = true; 871 mAttachInfo.mIgnoreDirtyState = true; 872 } 873 874 // Add the new dirty rect to the current one 875 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 876 // Intersect with the bounds of the window to skip 877 // updates that lie outside of the visible region 878 final float appScale = mAttachInfo.mApplicationScale; 879 localDirty.intersect(0, 0, 880 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 881 882 if (!mWillDrawSoon) { 883 scheduleTraversals(); 884 } 885 886 return null; 887 } 888 889 void setStopped(boolean stopped) { 890 if (mStopped != stopped) { 891 mStopped = stopped; 892 if (!stopped) { 893 scheduleTraversals(); 894 } 895 } 896 } 897 898 public ViewParent getParent() { 899 return null; 900 } 901 902 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 903 if (child != mView) { 904 throw new RuntimeException("child is not mine, honest!"); 905 } 906 // Note: don't apply scroll offset, because we want to know its 907 // visibility in the virtual canvas being given to the view hierarchy. 908 return r.intersect(0, 0, mWidth, mHeight); 909 } 910 911 public void bringChildToFront(View child) { 912 } 913 914 int getHostVisibility() { 915 return mAppVisible ? mView.getVisibility() : View.GONE; 916 } 917 918 void disposeResizeBuffer() { 919 if (mResizeBuffer != null) { 920 mResizeBuffer.destroy(); 921 mResizeBuffer = null; 922 } 923 } 924 925 /** 926 * Add LayoutTransition to the list of transitions to be started in the next traversal. 927 * This list will be cleared after the transitions on the list are start()'ed. These 928 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 929 * happens during the layout phase of traversal, which we want to complete before any of the 930 * animations are started (because those animations may side-effect properties that layout 931 * depends upon, like the bounding rectangles of the affected views). So we add the transition 932 * to the list and it is started just prior to starting the drawing phase of traversal. 933 * 934 * @param transition The LayoutTransition to be started on the next traversal. 935 * 936 * @hide 937 */ 938 public void requestTransitionStart(LayoutTransition transition) { 939 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 940 if (mPendingTransitions == null) { 941 mPendingTransitions = new ArrayList<LayoutTransition>(); 942 } 943 mPendingTransitions.add(transition); 944 } 945 } 946 947 void scheduleTraversals() { 948 if (!mTraversalScheduled) { 949 mTraversalScheduled = true; 950 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 951 mChoreographer.postCallback( 952 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 953 scheduleConsumeBatchedInput(); 954 } 955 } 956 957 void unscheduleTraversals() { 958 if (mTraversalScheduled) { 959 mTraversalScheduled = false; 960 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 961 mChoreographer.removeCallbacks( 962 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 963 } 964 } 965 966 void doTraversal() { 967 if (mTraversalScheduled) { 968 mTraversalScheduled = false; 969 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 970 971 if (mProfile) { 972 Debug.startMethodTracing("ViewAncestor"); 973 } 974 975 final long traversalStartTime; 976 if (ViewDebug.DEBUG_LATENCY) { 977 traversalStartTime = System.nanoTime(); 978 if (mLastTraversalFinishedTimeNanos != 0) { 979 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 980 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 981 + "ms since the last traversals finished."); 982 } else { 983 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 984 } 985 } 986 987 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 988 try { 989 performTraversals(); 990 } finally { 991 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 992 } 993 994 if (ViewDebug.DEBUG_LATENCY) { 995 long now = System.nanoTime(); 996 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 997 + ((now - traversalStartTime) * 0.000001f) 998 + "ms."); 999 mLastTraversalFinishedTimeNanos = now; 1000 } 1001 1002 if (mProfile) { 1003 Debug.stopMethodTracing(); 1004 mProfile = false; 1005 } 1006 } 1007 } 1008 1009 private boolean collectViewAttributes() { 1010 final View.AttachInfo attachInfo = mAttachInfo; 1011 if (attachInfo.mRecomputeGlobalAttributes) { 1012 //Log.i(TAG, "Computing view hierarchy attributes!"); 1013 attachInfo.mRecomputeGlobalAttributes = false; 1014 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1015 int oldVis = attachInfo.mSystemUiVisibility; 1016 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1017 attachInfo.mKeepScreenOn = false; 1018 attachInfo.mSystemUiVisibility = 0; 1019 attachInfo.mHasSystemUiListeners = false; 1020 mView.dispatchCollectViewAttributes(attachInfo, 0); 1021 if (attachInfo.mKeepScreenOn != oldScreenOn 1022 || attachInfo.mSystemUiVisibility != oldVis 1023 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1024 WindowManager.LayoutParams params = mWindowAttributes; 1025 if (attachInfo.mKeepScreenOn) { 1026 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1027 } 1028 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1029 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1030 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1031 return true; 1032 } 1033 } 1034 return false; 1035 } 1036 1037 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1038 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1039 int childWidthMeasureSpec; 1040 int childHeightMeasureSpec; 1041 boolean windowSizeMayChange = false; 1042 1043 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1044 "Measuring " + host + " in display " + desiredWindowWidth 1045 + "x" + desiredWindowHeight + "..."); 1046 1047 boolean goodMeasure = false; 1048 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1049 // On large screens, we don't want to allow dialogs to just 1050 // stretch to fill the entire width of the screen to display 1051 // one line of text. First try doing the layout at a smaller 1052 // size to see if it will fit. 1053 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1054 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1055 int baseSize = 0; 1056 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1057 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1058 } 1059 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1060 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1061 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1062 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1063 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1064 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1065 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1066 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1067 goodMeasure = true; 1068 } else { 1069 // Didn't fit in that size... try expanding a bit. 1070 baseSize = (baseSize+desiredWindowWidth)/2; 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1072 + baseSize); 1073 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1074 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1075 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1076 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1077 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1078 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1079 goodMeasure = true; 1080 } 1081 } 1082 } 1083 } 1084 1085 if (!goodMeasure) { 1086 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1087 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1088 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1089 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1090 windowSizeMayChange = true; 1091 } 1092 } 1093 1094 if (DBG) { 1095 System.out.println("======================================"); 1096 System.out.println("performTraversals -- after measure"); 1097 host.debug(); 1098 } 1099 1100 return windowSizeMayChange; 1101 } 1102 1103 private void performTraversals() { 1104 // cache mView since it is used so much below... 1105 final View host = mView; 1106 1107 if (DBG) { 1108 System.out.println("======================================"); 1109 System.out.println("performTraversals"); 1110 host.debug(); 1111 } 1112 1113 if (host == null || !mAdded) 1114 return; 1115 1116 mWillDrawSoon = true; 1117 boolean windowSizeMayChange = false; 1118 boolean newSurface = false; 1119 boolean surfaceChanged = false; 1120 WindowManager.LayoutParams lp = mWindowAttributes; 1121 1122 int desiredWindowWidth; 1123 int desiredWindowHeight; 1124 1125 final View.AttachInfo attachInfo = mAttachInfo; 1126 1127 final int viewVisibility = getHostVisibility(); 1128 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1129 || mNewSurfaceNeeded; 1130 1131 WindowManager.LayoutParams params = null; 1132 if (mWindowAttributesChanged) { 1133 mWindowAttributesChanged = false; 1134 surfaceChanged = true; 1135 params = lp; 1136 } 1137 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1138 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1139 params = lp; 1140 mFullRedrawNeeded = true; 1141 mLayoutRequested = true; 1142 if (mLastInCompatMode) { 1143 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1144 mLastInCompatMode = false; 1145 } else { 1146 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1147 mLastInCompatMode = true; 1148 } 1149 } 1150 1151 mWindowAttributesChangesFlag = 0; 1152 1153 Rect frame = mWinFrame; 1154 if (mFirst) { 1155 mFullRedrawNeeded = true; 1156 mLayoutRequested = true; 1157 1158 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1159 // NOTE -- system code, won't try to do compat mode. 1160 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1161 Point size = new Point(); 1162 disp.getRealSize(size); 1163 desiredWindowWidth = size.x; 1164 desiredWindowHeight = size.y; 1165 } else { 1166 DisplayMetrics packageMetrics = 1167 mView.getContext().getResources().getDisplayMetrics(); 1168 desiredWindowWidth = packageMetrics.widthPixels; 1169 desiredWindowHeight = packageMetrics.heightPixels; 1170 } 1171 1172 // For the very first time, tell the view hierarchy that it 1173 // is attached to the window. Note that at this point the surface 1174 // object is not initialized to its backing store, but soon it 1175 // will be (assuming the window is visible). 1176 attachInfo.mSurface = mSurface; 1177 // We used to use the following condition to choose 32 bits drawing caches: 1178 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1179 // However, windows are now always 32 bits by default, so choose 32 bits 1180 attachInfo.mUse32BitDrawingCache = true; 1181 attachInfo.mHasWindowFocus = false; 1182 attachInfo.mWindowVisibility = viewVisibility; 1183 attachInfo.mRecomputeGlobalAttributes = false; 1184 viewVisibilityChanged = false; 1185 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1186 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1187 host.dispatchAttachedToWindow(attachInfo, 0); 1188 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1189 host.fitSystemWindows(mFitSystemWindowsInsets); 1190 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1191 1192 } else { 1193 desiredWindowWidth = frame.width(); 1194 desiredWindowHeight = frame.height(); 1195 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1196 if (DEBUG_ORIENTATION) Log.v(TAG, 1197 "View " + host + " resized to: " + frame); 1198 mFullRedrawNeeded = true; 1199 mLayoutRequested = true; 1200 windowSizeMayChange = true; 1201 } 1202 } 1203 1204 if (viewVisibilityChanged) { 1205 attachInfo.mWindowVisibility = viewVisibility; 1206 host.dispatchWindowVisibilityChanged(viewVisibility); 1207 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1208 destroyHardwareResources(); 1209 } 1210 if (viewVisibility == View.GONE) { 1211 // After making a window gone, we will count it as being 1212 // shown for the first time the next time it gets focus. 1213 mHasHadWindowFocus = false; 1214 } 1215 } 1216 1217 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1218 getRunQueue().executeActions(attachInfo.mHandler); 1219 1220 boolean insetsChanged = false; 1221 1222 boolean layoutRequested = mLayoutRequested && !mStopped; 1223 if (layoutRequested) { 1224 1225 final Resources res = mView.getContext().getResources(); 1226 1227 if (mFirst) { 1228 // make sure touch mode code executes by setting cached value 1229 // to opposite of the added touch mode. 1230 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1231 ensureTouchModeLocally(mAddedTouchMode); 1232 } else { 1233 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1234 insetsChanged = true; 1235 } 1236 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1237 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1238 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1239 + mAttachInfo.mVisibleInsets); 1240 } 1241 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1242 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1243 windowSizeMayChange = true; 1244 1245 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1246 // NOTE -- system code, won't try to do compat mode. 1247 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1248 Point size = new Point(); 1249 disp.getRealSize(size); 1250 desiredWindowWidth = size.x; 1251 desiredWindowHeight = size.y; 1252 } else { 1253 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1254 desiredWindowWidth = packageMetrics.widthPixels; 1255 desiredWindowHeight = packageMetrics.heightPixels; 1256 } 1257 } 1258 } 1259 1260 // Ask host how big it wants to be 1261 windowSizeMayChange |= measureHierarchy(host, lp, res, 1262 desiredWindowWidth, desiredWindowHeight); 1263 } 1264 1265 if (collectViewAttributes()) { 1266 params = lp; 1267 } 1268 if (attachInfo.mForceReportNewAttributes) { 1269 attachInfo.mForceReportNewAttributes = false; 1270 params = lp; 1271 } 1272 1273 if (mFirst || attachInfo.mViewVisibilityChanged) { 1274 attachInfo.mViewVisibilityChanged = false; 1275 int resizeMode = mSoftInputMode & 1276 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1277 // If we are in auto resize mode, then we need to determine 1278 // what mode to use now. 1279 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1280 final int N = attachInfo.mScrollContainers.size(); 1281 for (int i=0; i<N; i++) { 1282 if (attachInfo.mScrollContainers.get(i).isShown()) { 1283 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1284 } 1285 } 1286 if (resizeMode == 0) { 1287 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1288 } 1289 if ((lp.softInputMode & 1290 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1291 lp.softInputMode = (lp.softInputMode & 1292 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1293 resizeMode; 1294 params = lp; 1295 } 1296 } 1297 } 1298 1299 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1300 if (!PixelFormat.formatHasAlpha(params.format)) { 1301 params.format = PixelFormat.TRANSLUCENT; 1302 } 1303 } 1304 1305 if (mFitSystemWindowsRequested) { 1306 mFitSystemWindowsRequested = false; 1307 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1308 host.fitSystemWindows(mFitSystemWindowsInsets); 1309 if (mLayoutRequested) { 1310 // Short-circuit catching a new layout request here, so 1311 // we don't need to go through two layout passes when things 1312 // change due to fitting system windows, which can happen a lot. 1313 windowSizeMayChange |= measureHierarchy(host, lp, 1314 mView.getContext().getResources(), 1315 desiredWindowWidth, desiredWindowHeight); 1316 } 1317 } 1318 1319 if (layoutRequested) { 1320 // Clear this now, so that if anything requests a layout in the 1321 // rest of this function we will catch it and re-run a full 1322 // layout pass. 1323 mLayoutRequested = false; 1324 } 1325 1326 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1327 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1328 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1329 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1330 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1331 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1332 1333 final boolean computesInternalInsets = 1334 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1335 1336 boolean insetsPending = false; 1337 int relayoutResult = 0; 1338 1339 if (mFirst || windowShouldResize || insetsChanged || 1340 viewVisibilityChanged || params != null) { 1341 1342 if (viewVisibility == View.VISIBLE) { 1343 // If this window is giving internal insets to the window 1344 // manager, and it is being added or changing its visibility, 1345 // then we want to first give the window manager "fake" 1346 // insets to cause it to effectively ignore the content of 1347 // the window during layout. This avoids it briefly causing 1348 // other windows to resize/move based on the raw frame of the 1349 // window, waiting until we can finish laying out this window 1350 // and get back to the window manager with the ultimately 1351 // computed insets. 1352 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1353 } 1354 1355 if (mSurfaceHolder != null) { 1356 mSurfaceHolder.mSurfaceLock.lock(); 1357 mDrawingAllowed = true; 1358 } 1359 1360 boolean hwInitialized = false; 1361 boolean contentInsetsChanged = false; 1362 boolean visibleInsetsChanged; 1363 boolean hadSurface = mSurface.isValid(); 1364 1365 try { 1366 if (DEBUG_LAYOUT) { 1367 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1368 host.getMeasuredHeight() + ", params=" + params); 1369 } 1370 1371 final int surfaceGenerationId = mSurface.getGenerationId(); 1372 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1373 1374 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1375 + " content=" + mPendingContentInsets.toShortString() 1376 + " visible=" + mPendingVisibleInsets.toShortString() 1377 + " surface=" + mSurface); 1378 1379 if (mPendingConfiguration.seq != 0) { 1380 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1381 + mPendingConfiguration); 1382 updateConfiguration(mPendingConfiguration, !mFirst); 1383 mPendingConfiguration.seq = 0; 1384 } 1385 1386 contentInsetsChanged = !mPendingContentInsets.equals( 1387 mAttachInfo.mContentInsets); 1388 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1389 mAttachInfo.mVisibleInsets); 1390 if (contentInsetsChanged) { 1391 if (mWidth > 0 && mHeight > 0 && lp != null && 1392 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1393 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1394 mSurface != null && mSurface.isValid() && 1395 !mAttachInfo.mTurnOffWindowResizeAnim && 1396 mAttachInfo.mHardwareRenderer != null && 1397 mAttachInfo.mHardwareRenderer.isEnabled() && 1398 mAttachInfo.mHardwareRenderer.validate() && 1399 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1400 1401 disposeResizeBuffer(); 1402 1403 boolean completed = false; 1404 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1405 HardwareCanvas layerCanvas = null; 1406 try { 1407 if (mResizeBuffer == null) { 1408 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1409 mWidth, mHeight, false); 1410 } else if (mResizeBuffer.getWidth() != mWidth || 1411 mResizeBuffer.getHeight() != mHeight) { 1412 mResizeBuffer.resize(mWidth, mHeight); 1413 } 1414 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1415 layerCanvas.setViewport(mWidth, mHeight); 1416 layerCanvas.onPreDraw(null); 1417 final int restoreCount = layerCanvas.save(); 1418 1419 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1420 1421 int yoff; 1422 final boolean scrolling = mScroller != null 1423 && mScroller.computeScrollOffset(); 1424 if (scrolling) { 1425 yoff = mScroller.getCurrY(); 1426 mScroller.abortAnimation(); 1427 } else { 1428 yoff = mScrollY; 1429 } 1430 1431 layerCanvas.translate(0, -yoff); 1432 if (mTranslator != null) { 1433 mTranslator.translateCanvas(layerCanvas); 1434 } 1435 1436 mView.draw(layerCanvas); 1437 1438 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1439 1440 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1441 mResizeBufferDuration = mView.getResources().getInteger( 1442 com.android.internal.R.integer.config_mediumAnimTime); 1443 completed = true; 1444 1445 layerCanvas.restoreToCount(restoreCount); 1446 } catch (OutOfMemoryError e) { 1447 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1448 } finally { 1449 if (layerCanvas != null) { 1450 layerCanvas.onPostDraw(); 1451 } 1452 if (mResizeBuffer != null) { 1453 mResizeBuffer.end(hwRendererCanvas); 1454 if (!completed) { 1455 mResizeBuffer.destroy(); 1456 mResizeBuffer = null; 1457 } 1458 } 1459 } 1460 } 1461 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1462 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1463 + mAttachInfo.mContentInsets); 1464 } 1465 if (contentInsetsChanged || mLastSystemUiVisibility != 1466 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1467 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1468 mFitSystemWindowsRequested = false; 1469 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1470 host.fitSystemWindows(mFitSystemWindowsInsets); 1471 } 1472 if (visibleInsetsChanged) { 1473 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1474 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1475 + mAttachInfo.mVisibleInsets); 1476 } 1477 1478 if (!hadSurface) { 1479 if (mSurface.isValid()) { 1480 // If we are creating a new surface, then we need to 1481 // completely redraw it. Also, when we get to the 1482 // point of drawing it we will hold off and schedule 1483 // a new traversal instead. This is so we can tell the 1484 // window manager about all of the windows being displayed 1485 // before actually drawing them, so it can display then 1486 // all at once. 1487 newSurface = true; 1488 mFullRedrawNeeded = true; 1489 mPreviousTransparentRegion.setEmpty(); 1490 1491 if (mAttachInfo.mHardwareRenderer != null) { 1492 try { 1493 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1494 } catch (Surface.OutOfResourcesException e) { 1495 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1496 try { 1497 if (!sWindowSession.outOfMemory(mWindow)) { 1498 Slog.w(TAG, "No processes killed for memory; killing self"); 1499 Process.killProcess(Process.myPid()); 1500 } 1501 } catch (RemoteException ex) { 1502 } 1503 mLayoutRequested = true; // ask wm for a new surface next time. 1504 return; 1505 } 1506 } 1507 } 1508 } else if (!mSurface.isValid()) { 1509 // If the surface has been removed, then reset the scroll 1510 // positions. 1511 mLastScrolledFocus = null; 1512 mScrollY = mCurScrollY = 0; 1513 if (mScroller != null) { 1514 mScroller.abortAnimation(); 1515 } 1516 disposeResizeBuffer(); 1517 // Our surface is gone 1518 if (mAttachInfo.mHardwareRenderer != null && 1519 mAttachInfo.mHardwareRenderer.isEnabled()) { 1520 mAttachInfo.mHardwareRenderer.destroy(true); 1521 } 1522 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1523 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1524 mFullRedrawNeeded = true; 1525 try { 1526 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1527 } catch (Surface.OutOfResourcesException e) { 1528 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1529 try { 1530 if (!sWindowSession.outOfMemory(mWindow)) { 1531 Slog.w(TAG, "No processes killed for memory; killing self"); 1532 Process.killProcess(Process.myPid()); 1533 } 1534 } catch (RemoteException ex) { 1535 } 1536 mLayoutRequested = true; // ask wm for a new surface next time. 1537 return; 1538 } 1539 } 1540 } catch (RemoteException e) { 1541 } 1542 1543 if (DEBUG_ORIENTATION) Log.v( 1544 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1545 1546 attachInfo.mWindowLeft = frame.left; 1547 attachInfo.mWindowTop = frame.top; 1548 1549 // !!FIXME!! This next section handles the case where we did not get the 1550 // window size we asked for. We should avoid this by getting a maximum size from 1551 // the window session beforehand. 1552 mWidth = frame.width(); 1553 mHeight = frame.height(); 1554 1555 if (mSurfaceHolder != null) { 1556 // The app owns the surface; tell it about what is going on. 1557 if (mSurface.isValid()) { 1558 // XXX .copyFrom() doesn't work! 1559 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1560 mSurfaceHolder.mSurface = mSurface; 1561 } 1562 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1563 mSurfaceHolder.mSurfaceLock.unlock(); 1564 if (mSurface.isValid()) { 1565 if (!hadSurface) { 1566 mSurfaceHolder.ungetCallbacks(); 1567 1568 mIsCreating = true; 1569 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1570 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1571 if (callbacks != null) { 1572 for (SurfaceHolder.Callback c : callbacks) { 1573 c.surfaceCreated(mSurfaceHolder); 1574 } 1575 } 1576 surfaceChanged = true; 1577 } 1578 if (surfaceChanged) { 1579 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1580 lp.format, mWidth, mHeight); 1581 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1582 if (callbacks != null) { 1583 for (SurfaceHolder.Callback c : callbacks) { 1584 c.surfaceChanged(mSurfaceHolder, lp.format, 1585 mWidth, mHeight); 1586 } 1587 } 1588 } 1589 mIsCreating = false; 1590 } else if (hadSurface) { 1591 mSurfaceHolder.ungetCallbacks(); 1592 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1593 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1594 if (callbacks != null) { 1595 for (SurfaceHolder.Callback c : callbacks) { 1596 c.surfaceDestroyed(mSurfaceHolder); 1597 } 1598 } 1599 mSurfaceHolder.mSurfaceLock.lock(); 1600 try { 1601 mSurfaceHolder.mSurface = new Surface(); 1602 } finally { 1603 mSurfaceHolder.mSurfaceLock.unlock(); 1604 } 1605 } 1606 } 1607 1608 if (mAttachInfo.mHardwareRenderer != null && 1609 mAttachInfo.mHardwareRenderer.isEnabled()) { 1610 if (hwInitialized || windowShouldResize || 1611 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1612 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1613 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1614 if (!hwInitialized) { 1615 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1616 } 1617 } 1618 } 1619 1620 if (!mStopped) { 1621 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1622 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1623 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1624 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1625 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1626 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1627 1628 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1629 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1630 + " mHeight=" + mHeight 1631 + " measuredHeight=" + host.getMeasuredHeight() 1632 + " coveredInsetsChanged=" + contentInsetsChanged); 1633 1634 // Ask host how big it wants to be 1635 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1636 1637 // Implementation of weights from WindowManager.LayoutParams 1638 // We just grow the dimensions as needed and re-measure if 1639 // needs be 1640 int width = host.getMeasuredWidth(); 1641 int height = host.getMeasuredHeight(); 1642 boolean measureAgain = false; 1643 1644 if (lp.horizontalWeight > 0.0f) { 1645 width += (int) ((mWidth - width) * lp.horizontalWeight); 1646 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1647 MeasureSpec.EXACTLY); 1648 measureAgain = true; 1649 } 1650 if (lp.verticalWeight > 0.0f) { 1651 height += (int) ((mHeight - height) * lp.verticalWeight); 1652 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1653 MeasureSpec.EXACTLY); 1654 measureAgain = true; 1655 } 1656 1657 if (measureAgain) { 1658 if (DEBUG_LAYOUT) Log.v(TAG, 1659 "And hey let's measure once more: width=" + width 1660 + " height=" + height); 1661 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1662 } 1663 1664 layoutRequested = true; 1665 } 1666 } 1667 } 1668 1669 final boolean didLayout = layoutRequested && !mStopped; 1670 boolean triggerGlobalLayoutListener = didLayout 1671 || attachInfo.mRecomputeGlobalAttributes; 1672 if (didLayout) { 1673 mLayoutRequested = false; 1674 mScrollMayChange = true; 1675 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1676 TAG, "Laying out " + host + " to (" + 1677 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1678 long startTime = 0L; 1679 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1680 startTime = SystemClock.elapsedRealtime(); 1681 } 1682 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1683 1684 if (false && ViewDebug.consistencyCheckEnabled) { 1685 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1686 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1687 + "please refer to the logs with the tag " 1688 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1689 } 1690 } 1691 1692 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1693 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1694 } 1695 1696 // By this point all views have been sized and positionned 1697 // We can compute the transparent area 1698 1699 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1700 // start out transparent 1701 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1702 host.getLocationInWindow(mTmpLocation); 1703 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1704 mTmpLocation[0] + host.mRight - host.mLeft, 1705 mTmpLocation[1] + host.mBottom - host.mTop); 1706 1707 host.gatherTransparentRegion(mTransparentRegion); 1708 if (mTranslator != null) { 1709 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1710 } 1711 1712 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1713 mPreviousTransparentRegion.set(mTransparentRegion); 1714 // reconfigure window manager 1715 try { 1716 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1717 } catch (RemoteException e) { 1718 } 1719 } 1720 } 1721 1722 if (DBG) { 1723 System.out.println("======================================"); 1724 System.out.println("performTraversals -- after setFrame"); 1725 host.debug(); 1726 } 1727 } 1728 1729 if (triggerGlobalLayoutListener) { 1730 attachInfo.mRecomputeGlobalAttributes = false; 1731 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1732 1733 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1734 postSendWindowContentChangedCallback(mView); 1735 } 1736 } 1737 1738 if (computesInternalInsets) { 1739 // Clear the original insets. 1740 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1741 insets.reset(); 1742 1743 // Compute new insets in place. 1744 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1745 1746 // Tell the window manager. 1747 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1748 mLastGivenInsets.set(insets); 1749 1750 // Translate insets to screen coordinates if needed. 1751 final Rect contentInsets; 1752 final Rect visibleInsets; 1753 final Region touchableRegion; 1754 if (mTranslator != null) { 1755 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1756 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1757 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1758 } else { 1759 contentInsets = insets.contentInsets; 1760 visibleInsets = insets.visibleInsets; 1761 touchableRegion = insets.touchableRegion; 1762 } 1763 1764 try { 1765 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1766 contentInsets, visibleInsets, touchableRegion); 1767 } catch (RemoteException e) { 1768 } 1769 } 1770 } 1771 1772 boolean skipDraw = false; 1773 1774 if (mFirst) { 1775 // handle first focus request 1776 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1777 + mView.hasFocus()); 1778 if (mView != null) { 1779 if (!mView.hasFocus()) { 1780 mView.requestFocus(View.FOCUS_FORWARD); 1781 mFocusedView = mRealFocusedView = mView.findFocus(); 1782 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1783 + mFocusedView); 1784 } else { 1785 mRealFocusedView = mView.findFocus(); 1786 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1787 + mRealFocusedView); 1788 } 1789 } 1790 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1791 // The first time we relayout the window, if the system is 1792 // doing window animations, we want to hold of on any future 1793 // draws until the animation is done. 1794 mWindowsAnimating = true; 1795 } 1796 } else if (mWindowsAnimating) { 1797 skipDraw = true; 1798 } 1799 1800 mFirst = false; 1801 mWillDrawSoon = false; 1802 mNewSurfaceNeeded = false; 1803 mViewVisibility = viewVisibility; 1804 1805 if (mAttachInfo.mHasWindowFocus) { 1806 final boolean imTarget = WindowManager.LayoutParams 1807 .mayUseInputMethod(mWindowAttributes.flags); 1808 if (imTarget != mLastWasImTarget) { 1809 mLastWasImTarget = imTarget; 1810 InputMethodManager imm = InputMethodManager.peekInstance(); 1811 if (imm != null && imTarget) { 1812 imm.startGettingWindowFocus(mView); 1813 imm.onWindowFocus(mView, mView.findFocus(), 1814 mWindowAttributes.softInputMode, 1815 !mHasHadWindowFocus, mWindowAttributes.flags); 1816 } 1817 } 1818 } 1819 1820 // Remember if we must report the next draw. 1821 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1822 mReportNextDraw = true; 1823 } 1824 1825 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1826 viewVisibility != View.VISIBLE; 1827 1828 if (!cancelDraw && !newSurface) { 1829 if (!skipDraw || mReportNextDraw) { 1830 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1831 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1832 mPendingTransitions.get(i).startChangingAnimations(); 1833 } 1834 mPendingTransitions.clear(); 1835 } 1836 1837 performDraw(); 1838 } 1839 } else { 1840 // End any pending transitions on this non-visible window 1841 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1842 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1843 mPendingTransitions.get(i).endChangingAnimations(); 1844 } 1845 mPendingTransitions.clear(); 1846 } 1847 1848 if (viewVisibility == View.VISIBLE) { 1849 // Try again 1850 scheduleTraversals(); 1851 } 1852 } 1853 } 1854 1855 public void requestTransparentRegion(View child) { 1856 // the test below should not fail unless someone is messing with us 1857 checkThread(); 1858 if (mView == child) { 1859 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1860 // Need to make sure we re-evaluate the window attributes next 1861 // time around, to ensure the window has the correct format. 1862 mWindowAttributesChanged = true; 1863 mWindowAttributesChangesFlag = 0; 1864 requestLayout(); 1865 } 1866 } 1867 1868 /** 1869 * Figures out the measure spec for the root view in a window based on it's 1870 * layout params. 1871 * 1872 * @param windowSize 1873 * The available width or height of the window 1874 * 1875 * @param rootDimension 1876 * The layout params for one dimension (width or height) of the 1877 * window. 1878 * 1879 * @return The measure spec to use to measure the root view. 1880 */ 1881 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1882 int measureSpec; 1883 switch (rootDimension) { 1884 1885 case ViewGroup.LayoutParams.MATCH_PARENT: 1886 // Window can't resize. Force root view to be windowSize. 1887 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1888 break; 1889 case ViewGroup.LayoutParams.WRAP_CONTENT: 1890 // Window can resize. Set max size for root view. 1891 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1892 break; 1893 default: 1894 // Window wants to be an exact size. Force root view to be that size. 1895 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1896 break; 1897 } 1898 return measureSpec; 1899 } 1900 1901 int mHardwareYOffset; 1902 int mResizeAlpha; 1903 final Paint mResizePaint = new Paint(); 1904 1905 public void onHardwarePreDraw(HardwareCanvas canvas) { 1906 canvas.translate(0, -mHardwareYOffset); 1907 } 1908 1909 public void onHardwarePostDraw(HardwareCanvas canvas) { 1910 if (mResizeBuffer != null) { 1911 mResizePaint.setAlpha(mResizeAlpha); 1912 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1913 } 1914 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1915 } 1916 1917 /** 1918 * @hide 1919 */ 1920 void outputDisplayList(View view) { 1921 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1922 DisplayList displayList = view.getDisplayList(); 1923 if (displayList != null) { 1924 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1925 } 1926 } 1927 } 1928 1929 /** 1930 * @see #PROPERTY_PROFILE_RENDERING 1931 */ 1932 private void profileRendering(boolean enabled) { 1933 if (mProfileRendering) { 1934 mRenderProfilingEnabled = enabled; 1935 if (mRenderProfiler == null) { 1936 mRenderProfiler = new Thread(new Runnable() { 1937 @Override 1938 public void run() { 1939 Log.d(TAG, "Starting profiling thread"); 1940 while (mRenderProfilingEnabled) { 1941 mAttachInfo.mHandler.post(new Runnable() { 1942 @Override 1943 public void run() { 1944 mDirty.set(0, 0, mWidth, mHeight); 1945 scheduleTraversals(); 1946 } 1947 }); 1948 try { 1949 // TODO: This should use vsync when we get an API 1950 Thread.sleep(15); 1951 } catch (InterruptedException e) { 1952 Log.d(TAG, "Exiting profiling thread"); 1953 } 1954 } 1955 } 1956 }, "Rendering Profiler"); 1957 mRenderProfiler.start(); 1958 } else { 1959 mRenderProfiler.interrupt(); 1960 mRenderProfiler = null; 1961 } 1962 } 1963 } 1964 1965 /** 1966 * Called from draw() when DEBUG_FPS is enabled 1967 */ 1968 private void trackFPS() { 1969 // Tracks frames per second drawn. First value in a series of draws may be bogus 1970 // because it down not account for the intervening idle time 1971 long nowTime = System.currentTimeMillis(); 1972 if (mFpsStartTime < 0) { 1973 mFpsStartTime = mFpsPrevTime = nowTime; 1974 mFpsNumFrames = 0; 1975 } else { 1976 ++mFpsNumFrames; 1977 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1978 long frameTime = nowTime - mFpsPrevTime; 1979 long totalTime = nowTime - mFpsStartTime; 1980 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1981 mFpsPrevTime = nowTime; 1982 if (totalTime > 1000) { 1983 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1984 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1985 mFpsStartTime = nowTime; 1986 mFpsNumFrames = 0; 1987 } 1988 } 1989 } 1990 1991 private void performDraw() { 1992 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 1993 return; 1994 } 1995 1996 final long drawStartTime; 1997 if (ViewDebug.DEBUG_LATENCY) { 1998 drawStartTime = System.nanoTime(); 1999 if (mLastDrawFinishedTimeNanos != 0) { 2000 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 2001 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 2002 + "ms since the last draw finished."); 2003 } else { 2004 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 2005 } 2006 } 2007 2008 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2009 mFullRedrawNeeded = false; 2010 2011 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2012 try { 2013 draw(fullRedrawNeeded); 2014 } finally { 2015 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2016 } 2017 2018 if (ViewDebug.DEBUG_LATENCY) { 2019 long now = System.nanoTime(); 2020 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 2021 + ((now - drawStartTime) * 0.000001f) 2022 + "ms."); 2023 mLastDrawFinishedTimeNanos = now; 2024 } 2025 2026 if (mReportNextDraw) { 2027 mReportNextDraw = false; 2028 2029 if (LOCAL_LOGV) { 2030 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2031 } 2032 if (mSurfaceHolder != null && mSurface.isValid()) { 2033 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2034 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2035 if (callbacks != null) { 2036 for (SurfaceHolder.Callback c : callbacks) { 2037 if (c instanceof SurfaceHolder.Callback2) { 2038 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2039 mSurfaceHolder); 2040 } 2041 } 2042 } 2043 } 2044 try { 2045 sWindowSession.finishDrawing(mWindow); 2046 } catch (RemoteException e) { 2047 } 2048 } 2049 } 2050 2051 private void draw(boolean fullRedrawNeeded) { 2052 Surface surface = mSurface; 2053 if (surface == null || !surface.isValid()) { 2054 return; 2055 } 2056 2057 if (DEBUG_FPS) { 2058 trackFPS(); 2059 } 2060 2061 if (!sFirstDrawComplete) { 2062 synchronized (sFirstDrawHandlers) { 2063 sFirstDrawComplete = true; 2064 final int count = sFirstDrawHandlers.size(); 2065 for (int i = 0; i< count; i++) { 2066 mHandler.post(sFirstDrawHandlers.get(i)); 2067 } 2068 } 2069 } 2070 2071 scrollToRectOrFocus(null, false); 2072 2073 final AttachInfo attachInfo = mAttachInfo; 2074 if (attachInfo.mViewScrollChanged) { 2075 attachInfo.mViewScrollChanged = false; 2076 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2077 } 2078 2079 int yoff; 2080 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2081 if (animating) { 2082 yoff = mScroller.getCurrY(); 2083 } else { 2084 yoff = mScrollY; 2085 } 2086 if (mCurScrollY != yoff) { 2087 mCurScrollY = yoff; 2088 fullRedrawNeeded = true; 2089 } 2090 2091 final float appScale = attachInfo.mApplicationScale; 2092 final boolean scalingRequired = attachInfo.mScalingRequired; 2093 2094 int resizeAlpha = 0; 2095 if (mResizeBuffer != null) { 2096 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2097 if (deltaTime < mResizeBufferDuration) { 2098 float amt = deltaTime/(float) mResizeBufferDuration; 2099 amt = mResizeInterpolator.getInterpolation(amt); 2100 animating = true; 2101 resizeAlpha = 255 - (int)(amt*255); 2102 } else { 2103 disposeResizeBuffer(); 2104 } 2105 } 2106 2107 final Rect dirty = mDirty; 2108 if (mSurfaceHolder != null) { 2109 // The app owns the surface, we won't draw. 2110 dirty.setEmpty(); 2111 if (animating) { 2112 if (mScroller != null) { 2113 mScroller.abortAnimation(); 2114 } 2115 disposeResizeBuffer(); 2116 } 2117 return; 2118 } 2119 2120 if (fullRedrawNeeded) { 2121 attachInfo.mIgnoreDirtyState = true; 2122 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2123 } 2124 2125 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2126 Log.v(TAG, "Draw " + mView + "/" 2127 + mWindowAttributes.getTitle() 2128 + ": dirty={" + dirty.left + "," + dirty.top 2129 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2130 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2131 appScale + ", width=" + mWidth + ", height=" + mHeight); 2132 } 2133 2134 attachInfo.mTreeObserver.dispatchOnDraw(); 2135 2136 if (!dirty.isEmpty() || mIsAnimating) { 2137 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2138 // Draw with hardware renderer. 2139 mIsAnimating = false; 2140 mHardwareYOffset = yoff; 2141 mResizeAlpha = resizeAlpha; 2142 2143 mCurrentDirty.set(dirty); 2144 mCurrentDirty.union(mPreviousDirty); 2145 mPreviousDirty.set(dirty); 2146 dirty.setEmpty(); 2147 2148 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2149 animating ? null : mCurrentDirty)) { 2150 mPreviousDirty.set(0, 0, mWidth, mHeight); 2151 } 2152 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2153 return; 2154 } 2155 } 2156 2157 if (animating) { 2158 mFullRedrawNeeded = true; 2159 scheduleTraversals(); 2160 } 2161 } 2162 2163 /** 2164 * @return true if drawing was succesfull, false if an error occurred 2165 */ 2166 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2167 boolean scalingRequired, Rect dirty) { 2168 2169 // Draw with software renderer. 2170 Canvas canvas; 2171 try { 2172 int left = dirty.left; 2173 int top = dirty.top; 2174 int right = dirty.right; 2175 int bottom = dirty.bottom; 2176 2177 final long lockCanvasStartTime; 2178 if (ViewDebug.DEBUG_LATENCY) { 2179 lockCanvasStartTime = System.nanoTime(); 2180 } 2181 2182 canvas = mSurface.lockCanvas(dirty); 2183 2184 if (ViewDebug.DEBUG_LATENCY) { 2185 long now = System.nanoTime(); 2186 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2187 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2188 } 2189 2190 if (left != dirty.left || top != dirty.top || right != dirty.right || 2191 bottom != dirty.bottom) { 2192 attachInfo.mIgnoreDirtyState = true; 2193 } 2194 2195 // TODO: Do this in native 2196 canvas.setDensity(mDensity); 2197 } catch (Surface.OutOfResourcesException e) { 2198 Log.e(TAG, "OutOfResourcesException locking surface", e); 2199 try { 2200 if (!sWindowSession.outOfMemory(mWindow)) { 2201 Slog.w(TAG, "No processes killed for memory; killing self"); 2202 Process.killProcess(Process.myPid()); 2203 } 2204 } catch (RemoteException ex) { 2205 } 2206 mLayoutRequested = true; // ask wm for a new surface next time. 2207 return false; 2208 } catch (IllegalArgumentException e) { 2209 Log.e(TAG, "IllegalArgumentException locking surface", e); 2210 // Don't assume this is due to out of memory, it could be 2211 // something else, and if it is something else then we could 2212 // kill stuff (or ourself) for no reason. 2213 mLayoutRequested = true; // ask wm for a new surface next time. 2214 return false; 2215 } 2216 2217 try { 2218 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2219 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2220 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2221 //canvas.drawARGB(255, 255, 0, 0); 2222 } 2223 2224 long startTime = 0L; 2225 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2226 startTime = SystemClock.elapsedRealtime(); 2227 } 2228 2229 // If this bitmap's format includes an alpha channel, we 2230 // need to clear it before drawing so that the child will 2231 // properly re-composite its drawing on a transparent 2232 // background. This automatically respects the clip/dirty region 2233 // or 2234 // If we are applying an offset, we need to clear the area 2235 // where the offset doesn't appear to avoid having garbage 2236 // left in the blank areas. 2237 if (!canvas.isOpaque() || yoff != 0) { 2238 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2239 } 2240 2241 dirty.setEmpty(); 2242 mIsAnimating = false; 2243 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2244 mView.mPrivateFlags |= View.DRAWN; 2245 2246 if (DEBUG_DRAW) { 2247 Context cxt = mView.getContext(); 2248 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2249 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2250 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2251 } 2252 try { 2253 canvas.translate(0, -yoff); 2254 if (mTranslator != null) { 2255 mTranslator.translateCanvas(canvas); 2256 } 2257 canvas.setScreenDensity(scalingRequired 2258 ? DisplayMetrics.DENSITY_DEVICE : 0); 2259 attachInfo.mSetIgnoreDirtyState = false; 2260 2261 final long drawStartTime; 2262 if (ViewDebug.DEBUG_LATENCY) { 2263 drawStartTime = System.nanoTime(); 2264 } 2265 2266 mView.draw(canvas); 2267 2268 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2269 2270 if (ViewDebug.DEBUG_LATENCY) { 2271 long now = System.nanoTime(); 2272 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2273 + ((now - drawStartTime) * 0.000001f) + "ms"); 2274 } 2275 } finally { 2276 if (!attachInfo.mSetIgnoreDirtyState) { 2277 // Only clear the flag if it was not set during the mView.draw() call 2278 attachInfo.mIgnoreDirtyState = false; 2279 } 2280 } 2281 2282 if (false && ViewDebug.consistencyCheckEnabled) { 2283 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2284 } 2285 2286 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2287 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2288 } 2289 } finally { 2290 final long unlockCanvasAndPostStartTime; 2291 if (ViewDebug.DEBUG_LATENCY) { 2292 unlockCanvasAndPostStartTime = System.nanoTime(); 2293 } 2294 2295 surface.unlockCanvasAndPost(canvas); 2296 2297 if (ViewDebug.DEBUG_LATENCY) { 2298 long now = System.nanoTime(); 2299 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2300 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2301 } 2302 2303 if (LOCAL_LOGV) { 2304 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2305 } 2306 } 2307 return true; 2308 } 2309 2310 /** 2311 * We want to draw a highlight around the current accessibility focused. 2312 * Since adding a style for all possible view is not a viable option we 2313 * have this specialized drawing method. 2314 * 2315 * Note: We are doing this here to be able to draw the highlight for 2316 * virtual views in addition to real ones. 2317 * 2318 * @param canvas The canvas on which to draw. 2319 */ 2320 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2321 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2322 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2323 return; 2324 } 2325 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2326 return; 2327 } 2328 Drawable drawable = getAccessibilityFocusedDrawable(); 2329 if (drawable == null) { 2330 return; 2331 } 2332 AccessibilityNodeProvider provider = 2333 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2334 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2335 if (provider == null) { 2336 mAccessibilityFocusedHost.getDrawingRect(bounds); 2337 if (mView instanceof ViewGroup) { 2338 ViewGroup viewGroup = (ViewGroup) mView; 2339 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2340 } 2341 } else { 2342 if (mAccessibilityFocusedVirtualView == null) { 2343 mAccessibilityFocusedVirtualView = provider.findAccessibilitiyFocus(View.NO_ID); 2344 } 2345 if (mAccessibilityFocusedVirtualView == null) { 2346 return; 2347 } 2348 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2349 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2350 } 2351 drawable.setBounds(bounds); 2352 drawable.draw(canvas); 2353 } 2354 2355 private Drawable getAccessibilityFocusedDrawable() { 2356 if (mAttachInfo != null) { 2357 // Lazily load the accessibility focus drawable. 2358 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2359 TypedValue value = new TypedValue(); 2360 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2361 R.attr.accessibilityFocusedDrawable, value, true); 2362 if (resolved) { 2363 mAttachInfo.mAccessibilityFocusDrawable = 2364 mView.mContext.getResources().getDrawable(value.resourceId); 2365 } 2366 } 2367 return mAttachInfo.mAccessibilityFocusDrawable; 2368 } 2369 return null; 2370 } 2371 2372 void invalidateDisplayLists() { 2373 final ArrayList<DisplayList> displayLists = mDisplayLists; 2374 final int count = displayLists.size(); 2375 2376 for (int i = 0; i < count; i++) { 2377 displayLists.get(i).invalidate(); 2378 } 2379 2380 displayLists.clear(); 2381 } 2382 2383 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2384 final View.AttachInfo attachInfo = mAttachInfo; 2385 final Rect ci = attachInfo.mContentInsets; 2386 final Rect vi = attachInfo.mVisibleInsets; 2387 int scrollY = 0; 2388 boolean handled = false; 2389 2390 if (vi.left > ci.left || vi.top > ci.top 2391 || vi.right > ci.right || vi.bottom > ci.bottom) { 2392 // We'll assume that we aren't going to change the scroll 2393 // offset, since we want to avoid that unless it is actually 2394 // going to make the focus visible... otherwise we scroll 2395 // all over the place. 2396 scrollY = mScrollY; 2397 // We can be called for two different situations: during a draw, 2398 // to update the scroll position if the focus has changed (in which 2399 // case 'rectangle' is null), or in response to a 2400 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2401 // is non-null and we just want to scroll to whatever that 2402 // rectangle is). 2403 View focus = mRealFocusedView; 2404 2405 // When in touch mode, focus points to the previously focused view, 2406 // which may have been removed from the view hierarchy. The following 2407 // line checks whether the view is still in our hierarchy. 2408 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2409 mRealFocusedView = null; 2410 return false; 2411 } 2412 2413 if (focus != mLastScrolledFocus) { 2414 // If the focus has changed, then ignore any requests to scroll 2415 // to a rectangle; first we want to make sure the entire focus 2416 // view is visible. 2417 rectangle = null; 2418 } 2419 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2420 + " rectangle=" + rectangle + " ci=" + ci 2421 + " vi=" + vi); 2422 if (focus == mLastScrolledFocus && !mScrollMayChange 2423 && rectangle == null) { 2424 // Optimization: if the focus hasn't changed since last 2425 // time, and no layout has happened, then just leave things 2426 // as they are. 2427 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2428 + mScrollY + " vi=" + vi.toShortString()); 2429 } else if (focus != null) { 2430 // We need to determine if the currently focused view is 2431 // within the visible part of the window and, if not, apply 2432 // a pan so it can be seen. 2433 mLastScrolledFocus = focus; 2434 mScrollMayChange = false; 2435 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2436 // Try to find the rectangle from the focus view. 2437 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2438 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2439 + mView.getWidth() + " h=" + mView.getHeight() 2440 + " ci=" + ci.toShortString() 2441 + " vi=" + vi.toShortString()); 2442 if (rectangle == null) { 2443 focus.getFocusedRect(mTempRect); 2444 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2445 + ": focusRect=" + mTempRect.toShortString()); 2446 if (mView instanceof ViewGroup) { 2447 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2448 focus, mTempRect); 2449 } 2450 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2451 "Focus in window: focusRect=" 2452 + mTempRect.toShortString() 2453 + " visRect=" + mVisRect.toShortString()); 2454 } else { 2455 mTempRect.set(rectangle); 2456 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2457 "Request scroll to rect: " 2458 + mTempRect.toShortString() 2459 + " visRect=" + mVisRect.toShortString()); 2460 } 2461 if (mTempRect.intersect(mVisRect)) { 2462 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2463 "Focus window visible rect: " 2464 + mTempRect.toShortString()); 2465 if (mTempRect.height() > 2466 (mView.getHeight()-vi.top-vi.bottom)) { 2467 // If the focus simply is not going to fit, then 2468 // best is probably just to leave things as-is. 2469 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2470 "Too tall; leaving scrollY=" + scrollY); 2471 } else if ((mTempRect.top-scrollY) < vi.top) { 2472 scrollY -= vi.top - (mTempRect.top-scrollY); 2473 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2474 "Top covered; scrollY=" + scrollY); 2475 } else if ((mTempRect.bottom-scrollY) 2476 > (mView.getHeight()-vi.bottom)) { 2477 scrollY += (mTempRect.bottom-scrollY) 2478 - (mView.getHeight()-vi.bottom); 2479 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2480 "Bottom covered; scrollY=" + scrollY); 2481 } 2482 handled = true; 2483 } 2484 } 2485 } 2486 } 2487 2488 if (scrollY != mScrollY) { 2489 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2490 + mScrollY + " , new=" + scrollY); 2491 if (!immediate && mResizeBuffer == null) { 2492 if (mScroller == null) { 2493 mScroller = new Scroller(mView.getContext()); 2494 } 2495 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2496 } else if (mScroller != null) { 2497 mScroller.abortAnimation(); 2498 } 2499 mScrollY = scrollY; 2500 } 2501 2502 return handled; 2503 } 2504 2505 void setAccessibilityFocusedHost(View host) { 2506 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView == null) { 2507 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2508 } 2509 mAccessibilityFocusedHost = host; 2510 mAccessibilityFocusedVirtualView = null; 2511 } 2512 2513 public void requestChildFocus(View child, View focused) { 2514 checkThread(); 2515 2516 if (DEBUG_INPUT_RESIZE) { 2517 Log.v(TAG, "Request child focus: focus now " + focused); 2518 } 2519 2520 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2521 scheduleTraversals(); 2522 2523 mFocusedView = mRealFocusedView = focused; 2524 } 2525 2526 public void clearChildFocus(View child) { 2527 checkThread(); 2528 2529 if (DEBUG_INPUT_RESIZE) { 2530 Log.v(TAG, "Clearing child focus"); 2531 } 2532 2533 mOldFocusedView = mFocusedView; 2534 2535 // Invoke the listener only if there is no view to take focus 2536 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2537 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2538 } 2539 2540 mFocusedView = mRealFocusedView = null; 2541 } 2542 2543 @Override 2544 public ViewParent getParentForAccessibility() { 2545 return null; 2546 } 2547 2548 public void focusableViewAvailable(View v) { 2549 checkThread(); 2550 if (mView != null) { 2551 if (!mView.hasFocus()) { 2552 v.requestFocus(); 2553 } else { 2554 // the one case where will transfer focus away from the current one 2555 // is if the current view is a view group that prefers to give focus 2556 // to its children first AND the view is a descendant of it. 2557 mFocusedView = mView.findFocus(); 2558 boolean descendantsHaveDibsOnFocus = 2559 (mFocusedView instanceof ViewGroup) && 2560 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2561 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2562 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2563 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2564 v.requestFocus(); 2565 } 2566 } 2567 } 2568 } 2569 2570 public void recomputeViewAttributes(View child) { 2571 checkThread(); 2572 if (mView == child) { 2573 mAttachInfo.mRecomputeGlobalAttributes = true; 2574 if (!mWillDrawSoon) { 2575 scheduleTraversals(); 2576 } 2577 } 2578 } 2579 2580 void dispatchDetachedFromWindow() { 2581 if (mView != null && mView.mAttachInfo != null) { 2582 if (mAttachInfo.mHardwareRenderer != null && 2583 mAttachInfo.mHardwareRenderer.isEnabled()) { 2584 mAttachInfo.mHardwareRenderer.validate(); 2585 } 2586 mView.dispatchDetachedFromWindow(); 2587 } 2588 2589 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2590 mAccessibilityManager.removeAccessibilityStateChangeListener( 2591 mAccessibilityInteractionConnectionManager); 2592 removeSendWindowContentChangedCallback(); 2593 2594 destroyHardwareRenderer(); 2595 2596 mView = null; 2597 mAttachInfo.mRootView = null; 2598 mAttachInfo.mSurface = null; 2599 2600 mSurface.release(); 2601 2602 if (mInputQueueCallback != null && mInputQueue != null) { 2603 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2604 mInputQueueCallback = null; 2605 mInputQueue = null; 2606 } else if (mInputEventReceiver != null) { 2607 mInputEventReceiver.dispose(); 2608 mInputEventReceiver = null; 2609 } 2610 try { 2611 sWindowSession.remove(mWindow); 2612 } catch (RemoteException e) { 2613 } 2614 2615 // Dispose the input channel after removing the window so the Window Manager 2616 // doesn't interpret the input channel being closed as an abnormal termination. 2617 if (mInputChannel != null) { 2618 mInputChannel.dispose(); 2619 mInputChannel = null; 2620 } 2621 2622 unscheduleTraversals(); 2623 } 2624 2625 void updateConfiguration(Configuration config, boolean force) { 2626 if (DEBUG_CONFIGURATION) Log.v(TAG, 2627 "Applying new config to window " 2628 + mWindowAttributes.getTitle() 2629 + ": " + config); 2630 2631 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2632 if (ci != null) { 2633 config = new Configuration(config); 2634 ci.applyToConfiguration(config); 2635 } 2636 2637 synchronized (sConfigCallbacks) { 2638 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2639 sConfigCallbacks.get(i).onConfigurationChanged(config); 2640 } 2641 } 2642 if (mView != null) { 2643 // At this point the resources have been updated to 2644 // have the most recent config, whatever that is. Use 2645 // the on in them which may be newer. 2646 config = mView.getResources().getConfiguration(); 2647 if (force || mLastConfiguration.diff(config) != 0) { 2648 mLastConfiguration.setTo(config); 2649 mView.dispatchConfigurationChanged(config); 2650 } 2651 } 2652 } 2653 2654 /** 2655 * Return true if child is an ancestor of parent, (or equal to the parent). 2656 */ 2657 static boolean isViewDescendantOf(View child, View parent) { 2658 if (child == parent) { 2659 return true; 2660 } 2661 2662 final ViewParent theParent = child.getParent(); 2663 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2664 } 2665 2666 private static void forceLayout(View view) { 2667 view.forceLayout(); 2668 if (view instanceof ViewGroup) { 2669 ViewGroup group = (ViewGroup) view; 2670 final int count = group.getChildCount(); 2671 for (int i = 0; i < count; i++) { 2672 forceLayout(group.getChildAt(i)); 2673 } 2674 } 2675 } 2676 2677 private final static int MSG_INVALIDATE = 1; 2678 private final static int MSG_INVALIDATE_RECT = 2; 2679 private final static int MSG_DIE = 3; 2680 private final static int MSG_RESIZED = 4; 2681 private final static int MSG_RESIZED_REPORT = 5; 2682 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2683 private final static int MSG_DISPATCH_KEY = 7; 2684 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2685 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2686 private final static int MSG_IME_FINISHED_EVENT = 10; 2687 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2688 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2689 private final static int MSG_CHECK_FOCUS = 13; 2690 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2691 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2692 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2693 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2694 private final static int MSG_UPDATE_CONFIGURATION = 18; 2695 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2696 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2697 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2698 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2699 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2700 2701 final class ViewRootHandler extends Handler { 2702 @Override 2703 public String getMessageName(Message message) { 2704 switch (message.what) { 2705 case MSG_INVALIDATE: 2706 return "MSG_INVALIDATE"; 2707 case MSG_INVALIDATE_RECT: 2708 return "MSG_INVALIDATE_RECT"; 2709 case MSG_DIE: 2710 return "MSG_DIE"; 2711 case MSG_RESIZED: 2712 return "MSG_RESIZED"; 2713 case MSG_RESIZED_REPORT: 2714 return "MSG_RESIZED_REPORT"; 2715 case MSG_WINDOW_FOCUS_CHANGED: 2716 return "MSG_WINDOW_FOCUS_CHANGED"; 2717 case MSG_DISPATCH_KEY: 2718 return "MSG_DISPATCH_KEY"; 2719 case MSG_DISPATCH_APP_VISIBILITY: 2720 return "MSG_DISPATCH_APP_VISIBILITY"; 2721 case MSG_DISPATCH_GET_NEW_SURFACE: 2722 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2723 case MSG_IME_FINISHED_EVENT: 2724 return "MSG_IME_FINISHED_EVENT"; 2725 case MSG_DISPATCH_KEY_FROM_IME: 2726 return "MSG_DISPATCH_KEY_FROM_IME"; 2727 case MSG_FINISH_INPUT_CONNECTION: 2728 return "MSG_FINISH_INPUT_CONNECTION"; 2729 case MSG_CHECK_FOCUS: 2730 return "MSG_CHECK_FOCUS"; 2731 case MSG_CLOSE_SYSTEM_DIALOGS: 2732 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2733 case MSG_DISPATCH_DRAG_EVENT: 2734 return "MSG_DISPATCH_DRAG_EVENT"; 2735 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2736 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2737 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2738 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2739 case MSG_UPDATE_CONFIGURATION: 2740 return "MSG_UPDATE_CONFIGURATION"; 2741 case MSG_PROCESS_INPUT_EVENTS: 2742 return "MSG_PROCESS_INPUT_EVENTS"; 2743 case MSG_DISPATCH_SCREEN_STATE: 2744 return "MSG_DISPATCH_SCREEN_STATE"; 2745 case MSG_INVALIDATE_DISPLAY_LIST: 2746 return "MSG_INVALIDATE_DISPLAY_LIST"; 2747 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2748 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2749 case MSG_DISPATCH_DONE_ANIMATING: 2750 return "MSG_DISPATCH_DONE_ANIMATING"; 2751 } 2752 return super.getMessageName(message); 2753 } 2754 2755 @Override 2756 public void handleMessage(Message msg) { 2757 switch (msg.what) { 2758 case MSG_INVALIDATE: 2759 ((View) msg.obj).invalidate(); 2760 break; 2761 case MSG_INVALIDATE_RECT: 2762 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2763 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2764 info.release(); 2765 break; 2766 case MSG_IME_FINISHED_EVENT: 2767 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2768 break; 2769 case MSG_PROCESS_INPUT_EVENTS: 2770 mProcessInputEventsScheduled = false; 2771 doProcessInputEvents(); 2772 break; 2773 case MSG_DISPATCH_APP_VISIBILITY: 2774 handleAppVisibility(msg.arg1 != 0); 2775 break; 2776 case MSG_DISPATCH_GET_NEW_SURFACE: 2777 handleGetNewSurface(); 2778 break; 2779 case MSG_RESIZED: 2780 ResizedInfo ri = (ResizedInfo)msg.obj; 2781 2782 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2783 && mPendingContentInsets.equals(ri.coveredInsets) 2784 && mPendingVisibleInsets.equals(ri.visibleInsets) 2785 && ((ResizedInfo)msg.obj).newConfig == null) { 2786 break; 2787 } 2788 // fall through... 2789 case MSG_RESIZED_REPORT: 2790 if (mAdded) { 2791 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2792 if (config != null) { 2793 updateConfiguration(config, false); 2794 } 2795 mWinFrame.left = 0; 2796 mWinFrame.right = msg.arg1; 2797 mWinFrame.top = 0; 2798 mWinFrame.bottom = msg.arg2; 2799 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2800 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2801 if (msg.what == MSG_RESIZED_REPORT) { 2802 mReportNextDraw = true; 2803 } 2804 2805 if (mView != null) { 2806 forceLayout(mView); 2807 } 2808 requestLayout(); 2809 } 2810 break; 2811 case MSG_WINDOW_FOCUS_CHANGED: { 2812 if (mAdded) { 2813 boolean hasWindowFocus = msg.arg1 != 0; 2814 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2815 2816 profileRendering(hasWindowFocus); 2817 2818 if (hasWindowFocus) { 2819 boolean inTouchMode = msg.arg2 != 0; 2820 ensureTouchModeLocally(inTouchMode); 2821 2822 if (mAttachInfo.mHardwareRenderer != null && 2823 mSurface != null && mSurface.isValid()) { 2824 mFullRedrawNeeded = true; 2825 try { 2826 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2827 mHolder); 2828 } catch (Surface.OutOfResourcesException e) { 2829 Log.e(TAG, "OutOfResourcesException locking surface", e); 2830 try { 2831 if (!sWindowSession.outOfMemory(mWindow)) { 2832 Slog.w(TAG, "No processes killed for memory; killing self"); 2833 Process.killProcess(Process.myPid()); 2834 } 2835 } catch (RemoteException ex) { 2836 } 2837 // Retry in a bit. 2838 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2839 return; 2840 } 2841 } 2842 } 2843 2844 mLastWasImTarget = WindowManager.LayoutParams 2845 .mayUseInputMethod(mWindowAttributes.flags); 2846 2847 InputMethodManager imm = InputMethodManager.peekInstance(); 2848 if (mView != null) { 2849 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2850 imm.startGettingWindowFocus(mView); 2851 } 2852 mAttachInfo.mKeyDispatchState.reset(); 2853 mView.dispatchWindowFocusChanged(hasWindowFocus); 2854 } 2855 2856 // Note: must be done after the focus change callbacks, 2857 // so all of the view state is set up correctly. 2858 if (hasWindowFocus) { 2859 if (imm != null && mLastWasImTarget) { 2860 imm.onWindowFocus(mView, mView.findFocus(), 2861 mWindowAttributes.softInputMode, 2862 !mHasHadWindowFocus, mWindowAttributes.flags); 2863 } 2864 // Clear the forward bit. We can just do this directly, since 2865 // the window manager doesn't care about it. 2866 mWindowAttributes.softInputMode &= 2867 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2868 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2869 .softInputMode &= 2870 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2871 mHasHadWindowFocus = true; 2872 } 2873 2874 setAccessibilityFocusedHost(null); 2875 2876 if (mView != null && mAccessibilityManager.isEnabled()) { 2877 if (hasWindowFocus) { 2878 mView.sendAccessibilityEvent( 2879 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2880 // Give accessibility focus to the view that has input 2881 // focus if such, otherwise to the first one. 2882 if (mView instanceof ViewGroup) { 2883 ViewGroup viewGroup = (ViewGroup) mView; 2884 View focused = viewGroup.findFocus(); 2885 if (focused != null) { 2886 focused.requestAccessibilityFocus(); 2887 } 2888 } 2889 // There is no accessibility focus, despite our effort 2890 // above, now just give it to the first view. 2891 if (mAccessibilityFocusedHost == null) { 2892 mView.requestAccessibilityFocus(); 2893 } 2894 } 2895 } 2896 } 2897 } break; 2898 case MSG_DIE: 2899 doDie(); 2900 break; 2901 case MSG_DISPATCH_KEY: { 2902 KeyEvent event = (KeyEvent)msg.obj; 2903 enqueueInputEvent(event, null, 0, true); 2904 } break; 2905 case MSG_DISPATCH_KEY_FROM_IME: { 2906 if (LOCAL_LOGV) Log.v( 2907 TAG, "Dispatching key " 2908 + msg.obj + " from IME to " + mView); 2909 KeyEvent event = (KeyEvent)msg.obj; 2910 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2911 // The IME is trying to say this event is from the 2912 // system! Bad bad bad! 2913 //noinspection UnusedAssignment 2914 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2915 } 2916 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2917 } break; 2918 case MSG_FINISH_INPUT_CONNECTION: { 2919 InputMethodManager imm = InputMethodManager.peekInstance(); 2920 if (imm != null) { 2921 imm.reportFinishInputConnection((InputConnection)msg.obj); 2922 } 2923 } break; 2924 case MSG_CHECK_FOCUS: { 2925 InputMethodManager imm = InputMethodManager.peekInstance(); 2926 if (imm != null) { 2927 imm.checkFocus(); 2928 } 2929 } break; 2930 case MSG_CLOSE_SYSTEM_DIALOGS: { 2931 if (mView != null) { 2932 mView.onCloseSystemDialogs((String)msg.obj); 2933 } 2934 } break; 2935 case MSG_DISPATCH_DRAG_EVENT: 2936 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2937 DragEvent event = (DragEvent)msg.obj; 2938 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2939 handleDragEvent(event); 2940 } break; 2941 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2942 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2943 } break; 2944 case MSG_UPDATE_CONFIGURATION: { 2945 Configuration config = (Configuration)msg.obj; 2946 if (config.isOtherSeqNewer(mLastConfiguration)) { 2947 config = mLastConfiguration; 2948 } 2949 updateConfiguration(config, false); 2950 } break; 2951 case MSG_DISPATCH_SCREEN_STATE: { 2952 if (mView != null) { 2953 handleScreenStateChange(msg.arg1 == 1); 2954 } 2955 } break; 2956 case MSG_INVALIDATE_DISPLAY_LIST: { 2957 invalidateDisplayLists(); 2958 } break; 2959 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2960 setAccessibilityFocusedHost(null); 2961 } break; 2962 case MSG_DISPATCH_DONE_ANIMATING: { 2963 handleDispatchDoneAnimating(); 2964 } break; 2965 } 2966 } 2967 } 2968 2969 final ViewRootHandler mHandler = new ViewRootHandler(); 2970 2971 /** 2972 * Something in the current window tells us we need to change the touch mode. For 2973 * example, we are not in touch mode, and the user touches the screen. 2974 * 2975 * If the touch mode has changed, tell the window manager, and handle it locally. 2976 * 2977 * @param inTouchMode Whether we want to be in touch mode. 2978 * @return True if the touch mode changed and focus changed was changed as a result 2979 */ 2980 boolean ensureTouchMode(boolean inTouchMode) { 2981 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2982 + "touch mode is " + mAttachInfo.mInTouchMode); 2983 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2984 2985 // tell the window manager 2986 try { 2987 sWindowSession.setInTouchMode(inTouchMode); 2988 } catch (RemoteException e) { 2989 throw new RuntimeException(e); 2990 } 2991 2992 // handle the change 2993 return ensureTouchModeLocally(inTouchMode); 2994 } 2995 2996 /** 2997 * Ensure that the touch mode for this window is set, and if it is changing, 2998 * take the appropriate action. 2999 * @param inTouchMode Whether we want to be in touch mode. 3000 * @return True if the touch mode changed and focus changed was changed as a result 3001 */ 3002 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3003 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3004 + "touch mode is " + mAttachInfo.mInTouchMode); 3005 3006 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3007 3008 mAttachInfo.mInTouchMode = inTouchMode; 3009 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3010 3011 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3012 } 3013 3014 private boolean enterTouchMode() { 3015 if (mView != null) { 3016 if (mView.hasFocus()) { 3017 // note: not relying on mFocusedView here because this could 3018 // be when the window is first being added, and mFocused isn't 3019 // set yet. 3020 final View focused = mView.findFocus(); 3021 if (focused != null) { 3022 if (focused.isFocusableInTouchMode()) { 3023 return true; 3024 } 3025 final ViewGroup ancestorToTakeFocus = 3026 findAncestorToTakeFocusInTouchMode(focused); 3027 if (ancestorToTakeFocus != null) { 3028 // there is an ancestor that wants focus after its descendants that 3029 // is focusable in touch mode.. give it focus 3030 return ancestorToTakeFocus.requestFocus(); 3031 } 3032 } 3033 // nothing appropriate to have focus in touch mode, clear it out 3034 mView.unFocus(); 3035 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3036 mFocusedView = null; 3037 mOldFocusedView = null; 3038 return true; 3039 } 3040 } 3041 return false; 3042 } 3043 3044 /** 3045 * Find an ancestor of focused that wants focus after its descendants and is 3046 * focusable in touch mode. 3047 * @param focused The currently focused view. 3048 * @return An appropriate view, or null if no such view exists. 3049 */ 3050 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3051 ViewParent parent = focused.getParent(); 3052 while (parent instanceof ViewGroup) { 3053 final ViewGroup vgParent = (ViewGroup) parent; 3054 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3055 && vgParent.isFocusableInTouchMode()) { 3056 return vgParent; 3057 } 3058 if (vgParent.isRootNamespace()) { 3059 return null; 3060 } else { 3061 parent = vgParent.getParent(); 3062 } 3063 } 3064 return null; 3065 } 3066 3067 private boolean leaveTouchMode() { 3068 if (mView != null) { 3069 boolean inputFocusValid = false; 3070 if (mView.hasFocus()) { 3071 // i learned the hard way to not trust mFocusedView :) 3072 mFocusedView = mView.findFocus(); 3073 if (!(mFocusedView instanceof ViewGroup)) { 3074 // some view has focus, let it keep it 3075 inputFocusValid = true; 3076 } else if (((ViewGroup) mFocusedView).getDescendantFocusability() != 3077 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3078 // some view group has focus, and doesn't prefer its children 3079 // over itself for focus, so let them keep it. 3080 inputFocusValid = true; 3081 } 3082 } 3083 // In accessibility mode we always have a view that has the 3084 // accessibility focus and input focus follows it, i.e. we 3085 // try to give input focus to the accessibility focused view. 3086 if (!AccessibilityManager.getInstance(mView.mContext).isEnabled()) { 3087 // If the current input focus is not valid, find the best view to give 3088 // focus to in this brave new non-touch-mode world. 3089 if (!inputFocusValid) { 3090 final View focused = focusSearch(null, View.FOCUS_DOWN); 3091 if (focused != null) { 3092 return focused.requestFocus(View.FOCUS_DOWN); 3093 } 3094 } 3095 } else { 3096 // If the current input focus is not valid clear it but do not 3097 // give it to another view since the accessibility focus is 3098 // leading now and the input one follows. 3099 if (!inputFocusValid) { 3100 if (mFocusedView != null) { 3101 mView.unFocus(); 3102 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, null); 3103 mFocusedView = null; 3104 mOldFocusedView = null; 3105 return true; 3106 } 3107 } 3108 } 3109 } 3110 return false; 3111 } 3112 3113 private void deliverInputEvent(QueuedInputEvent q) { 3114 if (ViewDebug.DEBUG_LATENCY) { 3115 q.mDeliverTimeNanos = System.nanoTime(); 3116 } 3117 3118 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3119 try { 3120 if (q.mEvent instanceof KeyEvent) { 3121 deliverKeyEvent(q); 3122 } else { 3123 final int source = q.mEvent.getSource(); 3124 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3125 deliverPointerEvent(q); 3126 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3127 deliverTrackballEvent(q); 3128 } else { 3129 deliverGenericMotionEvent(q); 3130 } 3131 } 3132 } finally { 3133 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3134 } 3135 } 3136 3137 private void deliverPointerEvent(QueuedInputEvent q) { 3138 final MotionEvent event = (MotionEvent)q.mEvent; 3139 final boolean isTouchEvent = event.isTouchEvent(); 3140 if (mInputEventConsistencyVerifier != null) { 3141 if (isTouchEvent) { 3142 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3143 } else { 3144 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3145 } 3146 } 3147 3148 // If there is no view, then the event will not be handled. 3149 if (mView == null || !mAdded) { 3150 finishInputEvent(q, false); 3151 return; 3152 } 3153 3154 // Translate the pointer event for compatibility, if needed. 3155 if (mTranslator != null) { 3156 mTranslator.translateEventInScreenToAppWindow(event); 3157 } 3158 3159 // Enter touch mode on down or scroll. 3160 final int action = event.getAction(); 3161 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3162 ensureTouchMode(true); 3163 } 3164 3165 // Offset the scroll position. 3166 if (mCurScrollY != 0) { 3167 event.offsetLocation(0, mCurScrollY); 3168 } 3169 if (MEASURE_LATENCY) { 3170 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3171 } 3172 3173 // Remember the touch position for possible drag-initiation. 3174 if (isTouchEvent) { 3175 mLastTouchPoint.x = event.getRawX(); 3176 mLastTouchPoint.y = event.getRawY(); 3177 } 3178 3179 // Dispatch touch to view hierarchy. 3180 boolean handled = mView.dispatchPointerEvent(event); 3181 if (MEASURE_LATENCY) { 3182 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3183 } 3184 if (handled) { 3185 finishInputEvent(q, true); 3186 return; 3187 } 3188 3189 // Pointer event was unhandled. 3190 finishInputEvent(q, false); 3191 } 3192 3193 private void deliverTrackballEvent(QueuedInputEvent q) { 3194 final MotionEvent event = (MotionEvent)q.mEvent; 3195 if (mInputEventConsistencyVerifier != null) { 3196 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3197 } 3198 3199 // If there is no view, then the event will not be handled. 3200 if (mView == null || !mAdded) { 3201 finishInputEvent(q, false); 3202 return; 3203 } 3204 3205 // Deliver the trackball event to the view. 3206 if (mView.dispatchTrackballEvent(event)) { 3207 // If we reach this, we delivered a trackball event to mView and 3208 // mView consumed it. Because we will not translate the trackball 3209 // event into a key event, touch mode will not exit, so we exit 3210 // touch mode here. 3211 ensureTouchMode(false); 3212 3213 finishInputEvent(q, true); 3214 mLastTrackballTime = Integer.MIN_VALUE; 3215 return; 3216 } 3217 3218 // Translate the trackball event into DPAD keys and try to deliver those. 3219 final TrackballAxis x = mTrackballAxisX; 3220 final TrackballAxis y = mTrackballAxisY; 3221 3222 long curTime = SystemClock.uptimeMillis(); 3223 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3224 // It has been too long since the last movement, 3225 // so restart at the beginning. 3226 x.reset(0); 3227 y.reset(0); 3228 mLastTrackballTime = curTime; 3229 } 3230 3231 final int action = event.getAction(); 3232 final int metaState = event.getMetaState(); 3233 switch (action) { 3234 case MotionEvent.ACTION_DOWN: 3235 x.reset(2); 3236 y.reset(2); 3237 enqueueInputEvent(new KeyEvent(curTime, curTime, 3238 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3239 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3240 InputDevice.SOURCE_KEYBOARD)); 3241 break; 3242 case MotionEvent.ACTION_UP: 3243 x.reset(2); 3244 y.reset(2); 3245 enqueueInputEvent(new KeyEvent(curTime, curTime, 3246 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3247 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3248 InputDevice.SOURCE_KEYBOARD)); 3249 break; 3250 } 3251 3252 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3253 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3254 + " move=" + event.getX() 3255 + " / Y=" + y.position + " step=" 3256 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3257 + " move=" + event.getY()); 3258 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3259 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3260 3261 // Generate DPAD events based on the trackball movement. 3262 // We pick the axis that has moved the most as the direction of 3263 // the DPAD. When we generate DPAD events for one axis, then the 3264 // other axis is reset -- we don't want to perform DPAD jumps due 3265 // to slight movements in the trackball when making major movements 3266 // along the other axis. 3267 int keycode = 0; 3268 int movement = 0; 3269 float accel = 1; 3270 if (xOff > yOff) { 3271 movement = x.generate((2/event.getXPrecision())); 3272 if (movement != 0) { 3273 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3274 : KeyEvent.KEYCODE_DPAD_LEFT; 3275 accel = x.acceleration; 3276 y.reset(2); 3277 } 3278 } else if (yOff > 0) { 3279 movement = y.generate((2/event.getYPrecision())); 3280 if (movement != 0) { 3281 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3282 : KeyEvent.KEYCODE_DPAD_UP; 3283 accel = y.acceleration; 3284 x.reset(2); 3285 } 3286 } 3287 3288 if (keycode != 0) { 3289 if (movement < 0) movement = -movement; 3290 int accelMovement = (int)(movement * accel); 3291 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3292 + " accelMovement=" + accelMovement 3293 + " accel=" + accel); 3294 if (accelMovement > movement) { 3295 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3296 + keycode); 3297 movement--; 3298 int repeatCount = accelMovement - movement; 3299 enqueueInputEvent(new KeyEvent(curTime, curTime, 3300 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3301 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3302 InputDevice.SOURCE_KEYBOARD)); 3303 } 3304 while (movement > 0) { 3305 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3306 + keycode); 3307 movement--; 3308 curTime = SystemClock.uptimeMillis(); 3309 enqueueInputEvent(new KeyEvent(curTime, curTime, 3310 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3311 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3312 InputDevice.SOURCE_KEYBOARD)); 3313 enqueueInputEvent(new KeyEvent(curTime, curTime, 3314 KeyEvent.ACTION_UP, keycode, 0, metaState, 3315 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3316 InputDevice.SOURCE_KEYBOARD)); 3317 } 3318 mLastTrackballTime = curTime; 3319 } 3320 3321 // Unfortunately we can't tell whether the application consumed the keys, so 3322 // we always consider the trackball event handled. 3323 finishInputEvent(q, true); 3324 } 3325 3326 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3327 final MotionEvent event = (MotionEvent)q.mEvent; 3328 if (mInputEventConsistencyVerifier != null) { 3329 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3330 } 3331 3332 final int source = event.getSource(); 3333 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3334 3335 // If there is no view, then the event will not be handled. 3336 if (mView == null || !mAdded) { 3337 if (isJoystick) { 3338 updateJoystickDirection(event, false); 3339 } 3340 finishInputEvent(q, false); 3341 return; 3342 } 3343 3344 // Deliver the event to the view. 3345 if (mView.dispatchGenericMotionEvent(event)) { 3346 if (isJoystick) { 3347 updateJoystickDirection(event, false); 3348 } 3349 finishInputEvent(q, true); 3350 return; 3351 } 3352 3353 if (isJoystick) { 3354 // Translate the joystick event into DPAD keys and try to deliver those. 3355 updateJoystickDirection(event, true); 3356 finishInputEvent(q, true); 3357 } else { 3358 finishInputEvent(q, false); 3359 } 3360 } 3361 3362 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3363 final long time = event.getEventTime(); 3364 final int metaState = event.getMetaState(); 3365 final int deviceId = event.getDeviceId(); 3366 final int source = event.getSource(); 3367 3368 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3369 if (xDirection == 0) { 3370 xDirection = joystickAxisValueToDirection(event.getX()); 3371 } 3372 3373 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3374 if (yDirection == 0) { 3375 yDirection = joystickAxisValueToDirection(event.getY()); 3376 } 3377 3378 if (xDirection != mLastJoystickXDirection) { 3379 if (mLastJoystickXKeyCode != 0) { 3380 enqueueInputEvent(new KeyEvent(time, time, 3381 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3382 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3383 mLastJoystickXKeyCode = 0; 3384 } 3385 3386 mLastJoystickXDirection = xDirection; 3387 3388 if (xDirection != 0 && synthesizeNewKeys) { 3389 mLastJoystickXKeyCode = xDirection > 0 3390 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3391 enqueueInputEvent(new KeyEvent(time, time, 3392 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3393 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3394 } 3395 } 3396 3397 if (yDirection != mLastJoystickYDirection) { 3398 if (mLastJoystickYKeyCode != 0) { 3399 enqueueInputEvent(new KeyEvent(time, time, 3400 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3401 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3402 mLastJoystickYKeyCode = 0; 3403 } 3404 3405 mLastJoystickYDirection = yDirection; 3406 3407 if (yDirection != 0 && synthesizeNewKeys) { 3408 mLastJoystickYKeyCode = yDirection > 0 3409 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3410 enqueueInputEvent(new KeyEvent(time, time, 3411 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3412 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3413 } 3414 } 3415 } 3416 3417 private static int joystickAxisValueToDirection(float value) { 3418 if (value >= 0.5f) { 3419 return 1; 3420 } else if (value <= -0.5f) { 3421 return -1; 3422 } else { 3423 return 0; 3424 } 3425 } 3426 3427 /** 3428 * Returns true if the key is used for keyboard navigation. 3429 * @param keyEvent The key event. 3430 * @return True if the key is used for keyboard navigation. 3431 */ 3432 private static boolean isNavigationKey(KeyEvent keyEvent) { 3433 switch (keyEvent.getKeyCode()) { 3434 case KeyEvent.KEYCODE_DPAD_LEFT: 3435 case KeyEvent.KEYCODE_DPAD_RIGHT: 3436 case KeyEvent.KEYCODE_DPAD_UP: 3437 case KeyEvent.KEYCODE_DPAD_DOWN: 3438 case KeyEvent.KEYCODE_DPAD_CENTER: 3439 case KeyEvent.KEYCODE_PAGE_UP: 3440 case KeyEvent.KEYCODE_PAGE_DOWN: 3441 case KeyEvent.KEYCODE_MOVE_HOME: 3442 case KeyEvent.KEYCODE_MOVE_END: 3443 case KeyEvent.KEYCODE_TAB: 3444 case KeyEvent.KEYCODE_SPACE: 3445 case KeyEvent.KEYCODE_ENTER: 3446 return true; 3447 } 3448 return false; 3449 } 3450 3451 /** 3452 * Returns true if the key is used for typing. 3453 * @param keyEvent The key event. 3454 * @return True if the key is used for typing. 3455 */ 3456 private static boolean isTypingKey(KeyEvent keyEvent) { 3457 return keyEvent.getUnicodeChar() > 0; 3458 } 3459 3460 /** 3461 * See if the key event means we should leave touch mode (and leave touch mode if so). 3462 * @param event The key event. 3463 * @return Whether this key event should be consumed (meaning the act of 3464 * leaving touch mode alone is considered the event). 3465 */ 3466 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3467 // Only relevant in touch mode. 3468 if (!mAttachInfo.mInTouchMode) { 3469 return false; 3470 } 3471 3472 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3473 final int action = event.getAction(); 3474 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3475 return false; 3476 } 3477 3478 // Don't leave touch mode if the IME told us not to. 3479 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3480 return false; 3481 } 3482 3483 // If the key can be used for keyboard navigation then leave touch mode 3484 // and select a focused view if needed (in ensureTouchMode). 3485 // When a new focused view is selected, we consume the navigation key because 3486 // navigation doesn't make much sense unless a view already has focus so 3487 // the key's purpose is to set focus. 3488 if (isNavigationKey(event)) { 3489 return ensureTouchMode(false); 3490 } 3491 3492 // If the key can be used for typing then leave touch mode 3493 // and select a focused view if needed (in ensureTouchMode). 3494 // Always allow the view to process the typing key. 3495 if (isTypingKey(event)) { 3496 ensureTouchMode(false); 3497 return false; 3498 } 3499 3500 return false; 3501 } 3502 3503 private void deliverKeyEvent(QueuedInputEvent q) { 3504 final KeyEvent event = (KeyEvent)q.mEvent; 3505 if (mInputEventConsistencyVerifier != null) { 3506 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3507 } 3508 3509 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3510 // If there is no view, then the event will not be handled. 3511 if (mView == null || !mAdded) { 3512 finishInputEvent(q, false); 3513 return; 3514 } 3515 3516 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3517 3518 // Perform predispatching before the IME. 3519 if (mView.dispatchKeyEventPreIme(event)) { 3520 finishInputEvent(q, true); 3521 return; 3522 } 3523 3524 // Dispatch to the IME before propagating down the view hierarchy. 3525 // The IME will eventually call back into handleImeFinishedEvent. 3526 if (mLastWasImTarget) { 3527 InputMethodManager imm = InputMethodManager.peekInstance(); 3528 if (imm != null) { 3529 final int seq = event.getSequenceNumber(); 3530 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3531 + seq + " event=" + event); 3532 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3533 return; 3534 } 3535 } 3536 } 3537 3538 // Not dispatching to IME, continue with post IME actions. 3539 deliverKeyEventPostIme(q); 3540 } 3541 3542 void handleImeFinishedEvent(int seq, boolean handled) { 3543 final QueuedInputEvent q = mCurrentInputEvent; 3544 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3545 final KeyEvent event = (KeyEvent)q.mEvent; 3546 if (DEBUG_IMF) { 3547 Log.v(TAG, "IME finished event: seq=" + seq 3548 + " handled=" + handled + " event=" + event); 3549 } 3550 if (handled) { 3551 finishInputEvent(q, true); 3552 } else { 3553 deliverKeyEventPostIme(q); 3554 } 3555 } else { 3556 if (DEBUG_IMF) { 3557 Log.v(TAG, "IME finished event: seq=" + seq 3558 + " handled=" + handled + ", event not found!"); 3559 } 3560 } 3561 } 3562 3563 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3564 final KeyEvent event = (KeyEvent)q.mEvent; 3565 if (ViewDebug.DEBUG_LATENCY) { 3566 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3567 } 3568 3569 // If the view went away, then the event will not be handled. 3570 if (mView == null || !mAdded) { 3571 finishInputEvent(q, false); 3572 return; 3573 } 3574 3575 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3576 if (checkForLeavingTouchModeAndConsume(event)) { 3577 finishInputEvent(q, true); 3578 return; 3579 } 3580 3581 // Make sure the fallback event policy sees all keys that will be delivered to the 3582 // view hierarchy. 3583 mFallbackEventHandler.preDispatchKeyEvent(event); 3584 3585 // Deliver the key to the view hierarchy. 3586 if (mView.dispatchKeyEvent(event)) { 3587 finishInputEvent(q, true); 3588 return; 3589 } 3590 3591 // If the Control modifier is held, try to interpret the key as a shortcut. 3592 if (event.getAction() == KeyEvent.ACTION_DOWN 3593 && event.isCtrlPressed() 3594 && event.getRepeatCount() == 0 3595 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3596 if (mView.dispatchKeyShortcutEvent(event)) { 3597 finishInputEvent(q, true); 3598 return; 3599 } 3600 } 3601 3602 // Apply the fallback event policy. 3603 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3604 finishInputEvent(q, true); 3605 return; 3606 } 3607 3608 // Handle automatic focus changes. 3609 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3610 int direction = 0; 3611 switch (event.getKeyCode()) { 3612 case KeyEvent.KEYCODE_DPAD_LEFT: 3613 if (event.hasNoModifiers()) { 3614 direction = View.FOCUS_LEFT; 3615 } 3616 break; 3617 case KeyEvent.KEYCODE_DPAD_RIGHT: 3618 if (event.hasNoModifiers()) { 3619 direction = View.FOCUS_RIGHT; 3620 } 3621 break; 3622 case KeyEvent.KEYCODE_DPAD_UP: 3623 if (event.hasNoModifiers()) { 3624 direction = View.FOCUS_UP; 3625 } 3626 break; 3627 case KeyEvent.KEYCODE_DPAD_DOWN: 3628 if (event.hasNoModifiers()) { 3629 direction = View.FOCUS_DOWN; 3630 } 3631 break; 3632 case KeyEvent.KEYCODE_TAB: 3633 if (event.hasNoModifiers()) { 3634 direction = View.FOCUS_FORWARD; 3635 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3636 direction = View.FOCUS_BACKWARD; 3637 } 3638 break; 3639 } 3640 if (direction != 0) { 3641 View focused = mView.findFocus(); 3642 if (focused != null) { 3643 View v = focused.focusSearch(direction); 3644 if (v != null && v != focused) { 3645 // do the math the get the interesting rect 3646 // of previous focused into the coord system of 3647 // newly focused view 3648 focused.getFocusedRect(mTempRect); 3649 if (mView instanceof ViewGroup) { 3650 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3651 focused, mTempRect); 3652 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3653 v, mTempRect); 3654 } 3655 if (v.requestFocus(direction, mTempRect)) { 3656 playSoundEffect(SoundEffectConstants 3657 .getContantForFocusDirection(direction)); 3658 finishInputEvent(q, true); 3659 return; 3660 } 3661 } 3662 3663 // Give the focused view a last chance to handle the dpad key. 3664 if (mView.dispatchUnhandledMove(focused, direction)) { 3665 finishInputEvent(q, true); 3666 return; 3667 } 3668 } 3669 } 3670 } 3671 3672 // Key was unhandled. 3673 finishInputEvent(q, false); 3674 } 3675 3676 /* drag/drop */ 3677 void setLocalDragState(Object obj) { 3678 mLocalDragState = obj; 3679 } 3680 3681 private void handleDragEvent(DragEvent event) { 3682 // From the root, only drag start/end/location are dispatched. entered/exited 3683 // are determined and dispatched by the viewgroup hierarchy, who then report 3684 // that back here for ultimate reporting back to the framework. 3685 if (mView != null && mAdded) { 3686 final int what = event.mAction; 3687 3688 if (what == DragEvent.ACTION_DRAG_EXITED) { 3689 // A direct EXITED event means that the window manager knows we've just crossed 3690 // a window boundary, so the current drag target within this one must have 3691 // just been exited. Send it the usual notifications and then we're done 3692 // for now. 3693 mView.dispatchDragEvent(event); 3694 } else { 3695 // Cache the drag description when the operation starts, then fill it in 3696 // on subsequent calls as a convenience 3697 if (what == DragEvent.ACTION_DRAG_STARTED) { 3698 mCurrentDragView = null; // Start the current-recipient tracking 3699 mDragDescription = event.mClipDescription; 3700 } else { 3701 event.mClipDescription = mDragDescription; 3702 } 3703 3704 // For events with a [screen] location, translate into window coordinates 3705 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3706 mDragPoint.set(event.mX, event.mY); 3707 if (mTranslator != null) { 3708 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3709 } 3710 3711 if (mCurScrollY != 0) { 3712 mDragPoint.offset(0, mCurScrollY); 3713 } 3714 3715 event.mX = mDragPoint.x; 3716 event.mY = mDragPoint.y; 3717 } 3718 3719 // Remember who the current drag target is pre-dispatch 3720 final View prevDragView = mCurrentDragView; 3721 3722 // Now dispatch the drag/drop event 3723 boolean result = mView.dispatchDragEvent(event); 3724 3725 // If we changed apparent drag target, tell the OS about it 3726 if (prevDragView != mCurrentDragView) { 3727 try { 3728 if (prevDragView != null) { 3729 sWindowSession.dragRecipientExited(mWindow); 3730 } 3731 if (mCurrentDragView != null) { 3732 sWindowSession.dragRecipientEntered(mWindow); 3733 } 3734 } catch (RemoteException e) { 3735 Slog.e(TAG, "Unable to note drag target change"); 3736 } 3737 } 3738 3739 // Report the drop result when we're done 3740 if (what == DragEvent.ACTION_DROP) { 3741 mDragDescription = null; 3742 try { 3743 Log.i(TAG, "Reporting drop result: " + result); 3744 sWindowSession.reportDropResult(mWindow, result); 3745 } catch (RemoteException e) { 3746 Log.e(TAG, "Unable to report drop result"); 3747 } 3748 } 3749 3750 // When the drag operation ends, release any local state object 3751 // that may have been in use 3752 if (what == DragEvent.ACTION_DRAG_ENDED) { 3753 setLocalDragState(null); 3754 } 3755 } 3756 } 3757 event.recycle(); 3758 } 3759 3760 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3761 if (mSeq != args.seq) { 3762 // The sequence has changed, so we need to update our value and make 3763 // sure to do a traversal afterward so the window manager is given our 3764 // most recent data. 3765 mSeq = args.seq; 3766 mAttachInfo.mForceReportNewAttributes = true; 3767 scheduleTraversals(); 3768 } 3769 if (mView == null) return; 3770 if (args.localChanges != 0) { 3771 if (mAttachInfo != null) { 3772 mAttachInfo.mRecomputeGlobalAttributes = true; 3773 } 3774 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3775 scheduleTraversals(); 3776 } 3777 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3778 } 3779 3780 public void handleDispatchDoneAnimating() { 3781 if (mWindowsAnimating) { 3782 mWindowsAnimating = false; 3783 if (!mDirty.isEmpty() || mIsAnimating) { 3784 scheduleTraversals(); 3785 } 3786 } 3787 } 3788 3789 public void getLastTouchPoint(Point outLocation) { 3790 outLocation.x = (int) mLastTouchPoint.x; 3791 outLocation.y = (int) mLastTouchPoint.y; 3792 } 3793 3794 public void setDragFocus(View newDragTarget) { 3795 if (mCurrentDragView != newDragTarget) { 3796 mCurrentDragView = newDragTarget; 3797 } 3798 } 3799 3800 private AudioManager getAudioManager() { 3801 if (mView == null) { 3802 throw new IllegalStateException("getAudioManager called when there is no mView"); 3803 } 3804 if (mAudioManager == null) { 3805 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3806 } 3807 return mAudioManager; 3808 } 3809 3810 public AccessibilityInteractionController getAccessibilityInteractionController() { 3811 if (mView == null) { 3812 throw new IllegalStateException("getAccessibilityInteractionController" 3813 + " called when there is no mView"); 3814 } 3815 if (mAccessibilityInteractionController == null) { 3816 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3817 } 3818 return mAccessibilityInteractionController; 3819 } 3820 3821 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3822 boolean insetsPending) throws RemoteException { 3823 3824 float appScale = mAttachInfo.mApplicationScale; 3825 boolean restore = false; 3826 if (params != null && mTranslator != null) { 3827 restore = true; 3828 params.backup(); 3829 mTranslator.translateWindowLayout(params); 3830 } 3831 if (params != null) { 3832 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3833 } 3834 mPendingConfiguration.seq = 0; 3835 //Log.d(TAG, ">>>>>> CALLING relayout"); 3836 if (params != null && mOrigWindowType != params.type) { 3837 // For compatibility with old apps, don't crash here. 3838 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3839 Slog.w(TAG, "Window type can not be changed after " 3840 + "the window is added; ignoring change of " + mView); 3841 params.type = mOrigWindowType; 3842 } 3843 } 3844 int relayoutResult = sWindowSession.relayout( 3845 mWindow, mSeq, params, 3846 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3847 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3848 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3849 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3850 mPendingConfiguration, mSurface); 3851 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3852 if (restore) { 3853 params.restore(); 3854 } 3855 3856 if (mTranslator != null) { 3857 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3858 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3859 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3860 } 3861 return relayoutResult; 3862 } 3863 3864 /** 3865 * {@inheritDoc} 3866 */ 3867 public void playSoundEffect(int effectId) { 3868 checkThread(); 3869 3870 try { 3871 final AudioManager audioManager = getAudioManager(); 3872 3873 switch (effectId) { 3874 case SoundEffectConstants.CLICK: 3875 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3876 return; 3877 case SoundEffectConstants.NAVIGATION_DOWN: 3878 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3879 return; 3880 case SoundEffectConstants.NAVIGATION_LEFT: 3881 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3882 return; 3883 case SoundEffectConstants.NAVIGATION_RIGHT: 3884 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3885 return; 3886 case SoundEffectConstants.NAVIGATION_UP: 3887 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3888 return; 3889 default: 3890 throw new IllegalArgumentException("unknown effect id " + effectId + 3891 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3892 } 3893 } catch (IllegalStateException e) { 3894 // Exception thrown by getAudioManager() when mView is null 3895 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3896 e.printStackTrace(); 3897 } 3898 } 3899 3900 /** 3901 * {@inheritDoc} 3902 */ 3903 public boolean performHapticFeedback(int effectId, boolean always) { 3904 try { 3905 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3906 } catch (RemoteException e) { 3907 return false; 3908 } 3909 } 3910 3911 /** 3912 * {@inheritDoc} 3913 */ 3914 public View focusSearch(View focused, int direction) { 3915 checkThread(); 3916 if (!(mView instanceof ViewGroup)) { 3917 return null; 3918 } 3919 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3920 } 3921 3922 public void debug() { 3923 mView.debug(); 3924 } 3925 3926 public void dumpGfxInfo(int[] info) { 3927 if (mView != null) { 3928 getGfxInfo(mView, info); 3929 } else { 3930 info[0] = info[1] = 0; 3931 } 3932 } 3933 3934 private static void getGfxInfo(View view, int[] info) { 3935 DisplayList displayList = view.mDisplayList; 3936 info[0]++; 3937 if (displayList != null) { 3938 info[1] += displayList.getSize(); 3939 } 3940 3941 if (view instanceof ViewGroup) { 3942 ViewGroup group = (ViewGroup) view; 3943 3944 int count = group.getChildCount(); 3945 for (int i = 0; i < count; i++) { 3946 getGfxInfo(group.getChildAt(i), info); 3947 } 3948 } 3949 } 3950 3951 public void die(boolean immediate) { 3952 if (immediate) { 3953 doDie(); 3954 } else { 3955 destroyHardwareRenderer(); 3956 mHandler.sendEmptyMessage(MSG_DIE); 3957 } 3958 } 3959 3960 void doDie() { 3961 checkThread(); 3962 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3963 synchronized (this) { 3964 if (mAdded) { 3965 dispatchDetachedFromWindow(); 3966 } 3967 3968 if (mAdded && !mFirst) { 3969 destroyHardwareRenderer(); 3970 3971 if (mView != null) { 3972 int viewVisibility = mView.getVisibility(); 3973 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3974 if (mWindowAttributesChanged || viewVisibilityChanged) { 3975 // If layout params have been changed, first give them 3976 // to the window manager to make sure it has the correct 3977 // animation info. 3978 try { 3979 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3980 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3981 sWindowSession.finishDrawing(mWindow); 3982 } 3983 } catch (RemoteException e) { 3984 } 3985 } 3986 3987 mSurface.release(); 3988 } 3989 } 3990 3991 mAdded = false; 3992 } 3993 } 3994 3995 public void requestUpdateConfiguration(Configuration config) { 3996 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 3997 mHandler.sendMessage(msg); 3998 } 3999 4000 private void destroyHardwareRenderer() { 4001 AttachInfo attachInfo = mAttachInfo; 4002 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4003 4004 if (hardwareRenderer != null) { 4005 if (mView != null) { 4006 hardwareRenderer.destroyHardwareResources(mView); 4007 } 4008 hardwareRenderer.destroy(true); 4009 hardwareRenderer.setRequested(false); 4010 4011 attachInfo.mHardwareRenderer = null; 4012 attachInfo.mHardwareAccelerated = false; 4013 } 4014 } 4015 4016 void dispatchImeFinishedEvent(int seq, boolean handled) { 4017 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4018 msg.arg1 = seq; 4019 msg.arg2 = handled ? 1 : 0; 4020 msg.setAsynchronous(true); 4021 mHandler.sendMessage(msg); 4022 } 4023 4024 public void dispatchFinishInputConnection(InputConnection connection) { 4025 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4026 mHandler.sendMessage(msg); 4027 } 4028 4029 public void dispatchResized(int w, int h, Rect coveredInsets, 4030 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4031 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4032 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 4033 + " visibleInsets=" + visibleInsets.toShortString() 4034 + " reportDraw=" + reportDraw); 4035 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4036 if (mTranslator != null) { 4037 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 4038 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4039 w *= mTranslator.applicationInvertedScale; 4040 h *= mTranslator.applicationInvertedScale; 4041 } 4042 msg.arg1 = w; 4043 msg.arg2 = h; 4044 ResizedInfo ri = new ResizedInfo(); 4045 ri.coveredInsets = new Rect(coveredInsets); 4046 ri.visibleInsets = new Rect(visibleInsets); 4047 ri.newConfig = newConfig; 4048 msg.obj = ri; 4049 mHandler.sendMessage(msg); 4050 } 4051 4052 /** 4053 * Represents a pending input event that is waiting in a queue. 4054 * 4055 * Input events are processed in serial order by the timestamp specified by 4056 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4057 * one input event to the application at a time and waits for the application 4058 * to finish handling it before delivering the next one. 4059 * 4060 * However, because the application or IME can synthesize and inject multiple 4061 * key events at a time without going through the input dispatcher, we end up 4062 * needing a queue on the application's side. 4063 */ 4064 private static final class QueuedInputEvent { 4065 public static final int FLAG_DELIVER_POST_IME = 1; 4066 4067 public QueuedInputEvent mNext; 4068 4069 public InputEvent mEvent; 4070 public InputEventReceiver mReceiver; 4071 public int mFlags; 4072 4073 // Used for latency calculations. 4074 public long mReceiveTimeNanos; 4075 public long mDeliverTimeNanos; 4076 public long mDeliverPostImeTimeNanos; 4077 } 4078 4079 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4080 InputEventReceiver receiver, int flags) { 4081 QueuedInputEvent q = mQueuedInputEventPool; 4082 if (q != null) { 4083 mQueuedInputEventPoolSize -= 1; 4084 mQueuedInputEventPool = q.mNext; 4085 q.mNext = null; 4086 } else { 4087 q = new QueuedInputEvent(); 4088 } 4089 4090 q.mEvent = event; 4091 q.mReceiver = receiver; 4092 q.mFlags = flags; 4093 return q; 4094 } 4095 4096 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4097 q.mEvent = null; 4098 q.mReceiver = null; 4099 4100 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4101 mQueuedInputEventPoolSize += 1; 4102 q.mNext = mQueuedInputEventPool; 4103 mQueuedInputEventPool = q; 4104 } 4105 } 4106 4107 void enqueueInputEvent(InputEvent event) { 4108 enqueueInputEvent(event, null, 0, false); 4109 } 4110 4111 void enqueueInputEvent(InputEvent event, 4112 InputEventReceiver receiver, int flags, boolean processImmediately) { 4113 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4114 4115 if (ViewDebug.DEBUG_LATENCY) { 4116 q.mReceiveTimeNanos = System.nanoTime(); 4117 q.mDeliverTimeNanos = 0; 4118 q.mDeliverPostImeTimeNanos = 0; 4119 } 4120 4121 // Always enqueue the input event in order, regardless of its time stamp. 4122 // We do this because the application or the IME may inject key events 4123 // in response to touch events and we want to ensure that the injected keys 4124 // are processed in the order they were received and we cannot trust that 4125 // the time stamp of injected events are monotonic. 4126 QueuedInputEvent last = mFirstPendingInputEvent; 4127 if (last == null) { 4128 mFirstPendingInputEvent = q; 4129 } else { 4130 while (last.mNext != null) { 4131 last = last.mNext; 4132 } 4133 last.mNext = q; 4134 } 4135 4136 if (processImmediately) { 4137 doProcessInputEvents(); 4138 } else { 4139 scheduleProcessInputEvents(); 4140 } 4141 } 4142 4143 private void scheduleProcessInputEvents() { 4144 if (!mProcessInputEventsScheduled) { 4145 mProcessInputEventsScheduled = true; 4146 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4147 msg.setAsynchronous(true); 4148 mHandler.sendMessage(msg); 4149 } 4150 } 4151 4152 void doProcessInputEvents() { 4153 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4154 QueuedInputEvent q = mFirstPendingInputEvent; 4155 mFirstPendingInputEvent = q.mNext; 4156 q.mNext = null; 4157 mCurrentInputEvent = q; 4158 deliverInputEvent(q); 4159 } 4160 4161 // We are done processing all input events that we can process right now 4162 // so we can clear the pending flag immediately. 4163 if (mProcessInputEventsScheduled) { 4164 mProcessInputEventsScheduled = false; 4165 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4166 } 4167 } 4168 4169 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4170 if (q != mCurrentInputEvent) { 4171 throw new IllegalStateException("finished input event out of order"); 4172 } 4173 4174 if (ViewDebug.DEBUG_LATENCY) { 4175 final long now = System.nanoTime(); 4176 final long eventTime = q.mEvent.getEventTimeNano(); 4177 final StringBuilder msg = new StringBuilder(); 4178 msg.append("Spent "); 4179 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 4180 msg.append("ms processing "); 4181 if (q.mEvent instanceof KeyEvent) { 4182 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 4183 msg.append("key event, action="); 4184 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 4185 } else { 4186 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 4187 msg.append("motion event, action="); 4188 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 4189 msg.append(", historySize="); 4190 msg.append(motionEvent.getHistorySize()); 4191 } 4192 msg.append(", handled="); 4193 msg.append(handled); 4194 msg.append(", received at +"); 4195 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 4196 if (q.mDeliverTimeNanos != 0) { 4197 msg.append("ms, delivered at +"); 4198 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 4199 } 4200 if (q.mDeliverPostImeTimeNanos != 0) { 4201 msg.append("ms, delivered post IME at +"); 4202 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 4203 } 4204 msg.append("ms, finished at +"); 4205 msg.append((now - eventTime) * 0.000001f); 4206 msg.append("ms."); 4207 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 4208 } 4209 4210 if (q.mReceiver != null) { 4211 q.mReceiver.finishInputEvent(q.mEvent, handled); 4212 } else { 4213 q.mEvent.recycleIfNeededAfterDispatch(); 4214 } 4215 4216 recycleQueuedInputEvent(q); 4217 4218 mCurrentInputEvent = null; 4219 if (mFirstPendingInputEvent != null) { 4220 scheduleProcessInputEvents(); 4221 } 4222 } 4223 4224 void scheduleConsumeBatchedInput() { 4225 if (!mConsumeBatchedInputScheduled) { 4226 mConsumeBatchedInputScheduled = true; 4227 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4228 mConsumedBatchedInputRunnable, null); 4229 } 4230 } 4231 4232 void unscheduleConsumeBatchedInput() { 4233 if (mConsumeBatchedInputScheduled) { 4234 mConsumeBatchedInputScheduled = false; 4235 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4236 mConsumedBatchedInputRunnable, null); 4237 } 4238 } 4239 4240 void doConsumeBatchedInput(long frameTimeNanos) { 4241 if (mConsumeBatchedInputScheduled) { 4242 mConsumeBatchedInputScheduled = false; 4243 if (mInputEventReceiver != null) { 4244 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4245 } 4246 doProcessInputEvents(); 4247 } 4248 } 4249 4250 final class TraversalRunnable implements Runnable { 4251 @Override 4252 public void run() { 4253 doTraversal(); 4254 } 4255 } 4256 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4257 4258 final class WindowInputEventReceiver extends InputEventReceiver { 4259 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4260 super(inputChannel, looper); 4261 } 4262 4263 @Override 4264 public void onInputEvent(InputEvent event) { 4265 enqueueInputEvent(event, this, 0, true); 4266 } 4267 4268 @Override 4269 public void onBatchedInputEventPending() { 4270 scheduleConsumeBatchedInput(); 4271 } 4272 4273 @Override 4274 public void dispose() { 4275 unscheduleConsumeBatchedInput(); 4276 super.dispose(); 4277 } 4278 } 4279 WindowInputEventReceiver mInputEventReceiver; 4280 4281 final class ConsumeBatchedInputRunnable implements Runnable { 4282 @Override 4283 public void run() { 4284 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4285 } 4286 } 4287 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4288 new ConsumeBatchedInputRunnable(); 4289 boolean mConsumeBatchedInputScheduled; 4290 4291 final class InvalidateOnAnimationRunnable implements Runnable { 4292 private boolean mPosted; 4293 private ArrayList<View> mViews = new ArrayList<View>(); 4294 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4295 new ArrayList<AttachInfo.InvalidateInfo>(); 4296 private View[] mTempViews; 4297 private AttachInfo.InvalidateInfo[] mTempViewRects; 4298 4299 public void addView(View view) { 4300 synchronized (this) { 4301 mViews.add(view); 4302 postIfNeededLocked(); 4303 } 4304 } 4305 4306 public void addViewRect(AttachInfo.InvalidateInfo info) { 4307 synchronized (this) { 4308 mViewRects.add(info); 4309 postIfNeededLocked(); 4310 } 4311 } 4312 4313 public void removeView(View view) { 4314 synchronized (this) { 4315 mViews.remove(view); 4316 4317 for (int i = mViewRects.size(); i-- > 0; ) { 4318 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4319 if (info.target == view) { 4320 mViewRects.remove(i); 4321 info.release(); 4322 } 4323 } 4324 4325 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4326 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4327 mPosted = false; 4328 } 4329 } 4330 } 4331 4332 @Override 4333 public void run() { 4334 final int viewCount; 4335 final int viewRectCount; 4336 synchronized (this) { 4337 mPosted = false; 4338 4339 viewCount = mViews.size(); 4340 if (viewCount != 0) { 4341 mTempViews = mViews.toArray(mTempViews != null 4342 ? mTempViews : new View[viewCount]); 4343 mViews.clear(); 4344 } 4345 4346 viewRectCount = mViewRects.size(); 4347 if (viewRectCount != 0) { 4348 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4349 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4350 mViewRects.clear(); 4351 } 4352 } 4353 4354 for (int i = 0; i < viewCount; i++) { 4355 mTempViews[i].invalidate(); 4356 } 4357 4358 for (int i = 0; i < viewRectCount; i++) { 4359 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4360 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4361 info.release(); 4362 } 4363 } 4364 4365 private void postIfNeededLocked() { 4366 if (!mPosted) { 4367 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4368 mPosted = true; 4369 } 4370 } 4371 } 4372 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4373 new InvalidateOnAnimationRunnable(); 4374 4375 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4376 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4377 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4378 } 4379 4380 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4381 long delayMilliseconds) { 4382 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4383 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4384 } 4385 4386 public void dispatchInvalidateOnAnimation(View view) { 4387 mInvalidateOnAnimationRunnable.addView(view); 4388 } 4389 4390 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4391 mInvalidateOnAnimationRunnable.addViewRect(info); 4392 } 4393 4394 public void invalidateDisplayList(DisplayList displayList) { 4395 mDisplayLists.add(displayList); 4396 4397 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4398 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4399 mHandler.sendMessage(msg); 4400 } 4401 4402 public void cancelInvalidate(View view) { 4403 mHandler.removeMessages(MSG_INVALIDATE, view); 4404 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4405 // them to the pool 4406 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4407 mInvalidateOnAnimationRunnable.removeView(view); 4408 } 4409 4410 public void dispatchKey(KeyEvent event) { 4411 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4412 msg.setAsynchronous(true); 4413 mHandler.sendMessage(msg); 4414 } 4415 4416 public void dispatchKeyFromIme(KeyEvent event) { 4417 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4418 msg.setAsynchronous(true); 4419 mHandler.sendMessage(msg); 4420 } 4421 4422 public void dispatchUnhandledKey(KeyEvent event) { 4423 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4424 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4425 final int keyCode = event.getKeyCode(); 4426 final int metaState = event.getMetaState(); 4427 4428 KeyEvent fallbackEvent = null; 4429 synchronized (mFallbackAction) { 4430 // Check for fallback actions specified by the key character map. 4431 if (kcm.getFallbackAction(keyCode, metaState, mFallbackAction)) { 4432 int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4433 fallbackEvent = KeyEvent.obtain( 4434 event.getDownTime(), event.getEventTime(), 4435 event.getAction(), mFallbackAction.keyCode, 4436 event.getRepeatCount(), mFallbackAction.metaState, 4437 event.getDeviceId(), event.getScanCode(), 4438 flags, event.getSource(), null); 4439 } 4440 } 4441 if (fallbackEvent != null) { 4442 dispatchKey(fallbackEvent); 4443 } 4444 } 4445 } 4446 4447 public void dispatchAppVisibility(boolean visible) { 4448 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4449 msg.arg1 = visible ? 1 : 0; 4450 mHandler.sendMessage(msg); 4451 } 4452 4453 public void dispatchScreenStateChange(boolean on) { 4454 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4455 msg.arg1 = on ? 1 : 0; 4456 mHandler.sendMessage(msg); 4457 } 4458 4459 public void dispatchGetNewSurface() { 4460 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4461 mHandler.sendMessage(msg); 4462 } 4463 4464 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4465 Message msg = Message.obtain(); 4466 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4467 msg.arg1 = hasFocus ? 1 : 0; 4468 msg.arg2 = inTouchMode ? 1 : 0; 4469 mHandler.sendMessage(msg); 4470 } 4471 4472 public void dispatchCloseSystemDialogs(String reason) { 4473 Message msg = Message.obtain(); 4474 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4475 msg.obj = reason; 4476 mHandler.sendMessage(msg); 4477 } 4478 4479 public void dispatchDragEvent(DragEvent event) { 4480 final int what; 4481 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4482 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4483 mHandler.removeMessages(what); 4484 } else { 4485 what = MSG_DISPATCH_DRAG_EVENT; 4486 } 4487 Message msg = mHandler.obtainMessage(what, event); 4488 mHandler.sendMessage(msg); 4489 } 4490 4491 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4492 int localValue, int localChanges) { 4493 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4494 args.seq = seq; 4495 args.globalVisibility = globalVisibility; 4496 args.localValue = localValue; 4497 args.localChanges = localChanges; 4498 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4499 } 4500 4501 public void dispatchDoneAnimating() { 4502 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4503 } 4504 4505 public void dispatchCheckFocus() { 4506 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4507 // This will result in a call to checkFocus() below. 4508 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4509 } 4510 } 4511 4512 /** 4513 * Post a callback to send a 4514 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4515 * This event is send at most once every 4516 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4517 */ 4518 private void postSendWindowContentChangedCallback(View source) { 4519 if (mSendWindowContentChangedAccessibilityEvent == null) { 4520 mSendWindowContentChangedAccessibilityEvent = 4521 new SendWindowContentChangedAccessibilityEvent(); 4522 } 4523 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4524 if (oldSource == null) { 4525 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4526 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4527 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4528 } else { 4529 mSendWindowContentChangedAccessibilityEvent.mSource = 4530 getCommonPredecessor(oldSource, source); 4531 } 4532 } 4533 4534 /** 4535 * Remove a posted callback to send a 4536 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4537 */ 4538 private void removeSendWindowContentChangedCallback() { 4539 if (mSendWindowContentChangedAccessibilityEvent != null) { 4540 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4541 } 4542 } 4543 4544 public boolean showContextMenuForChild(View originalView) { 4545 return false; 4546 } 4547 4548 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4549 return null; 4550 } 4551 4552 public void createContextMenu(ContextMenu menu) { 4553 } 4554 4555 public void childDrawableStateChanged(View child) { 4556 } 4557 4558 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4559 if (mView == null) { 4560 return false; 4561 } 4562 mAccessibilityManager.sendAccessibilityEvent(event); 4563 return true; 4564 } 4565 4566 @Override 4567 public void childAccessibilityStateChanged(View child) { 4568 postSendWindowContentChangedCallback(child); 4569 } 4570 4571 private View getCommonPredecessor(View first, View second) { 4572 if (mAttachInfo != null) { 4573 if (mTempHashSet == null) { 4574 mTempHashSet = new HashSet<View>(); 4575 } 4576 HashSet<View> seen = mTempHashSet; 4577 seen.clear(); 4578 View firstCurrent = first; 4579 while (firstCurrent != null) { 4580 seen.add(firstCurrent); 4581 ViewParent firstCurrentParent = firstCurrent.mParent; 4582 if (firstCurrentParent instanceof View) { 4583 firstCurrent = (View) firstCurrentParent; 4584 } else { 4585 firstCurrent = null; 4586 } 4587 } 4588 View secondCurrent = second; 4589 while (secondCurrent != null) { 4590 if (seen.contains(secondCurrent)) { 4591 seen.clear(); 4592 return secondCurrent; 4593 } 4594 ViewParent secondCurrentParent = secondCurrent.mParent; 4595 if (secondCurrentParent instanceof View) { 4596 secondCurrent = (View) secondCurrentParent; 4597 } else { 4598 secondCurrent = null; 4599 } 4600 } 4601 seen.clear(); 4602 } 4603 return null; 4604 } 4605 4606 void checkThread() { 4607 if (mThread != Thread.currentThread()) { 4608 throw new CalledFromWrongThreadException( 4609 "Only the original thread that created a view hierarchy can touch its views."); 4610 } 4611 } 4612 4613 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4614 // ViewAncestor never intercepts touch event, so this can be a no-op 4615 } 4616 4617 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4618 boolean immediate) { 4619 return scrollToRectOrFocus(rectangle, immediate); 4620 } 4621 4622 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4623 // Do nothing. 4624 } 4625 4626 class TakenSurfaceHolder extends BaseSurfaceHolder { 4627 @Override 4628 public boolean onAllowLockCanvas() { 4629 return mDrawingAllowed; 4630 } 4631 4632 @Override 4633 public void onRelayoutContainer() { 4634 // Not currently interesting -- from changing between fixed and layout size. 4635 } 4636 4637 public void setFormat(int format) { 4638 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4639 } 4640 4641 public void setType(int type) { 4642 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4643 } 4644 4645 @Override 4646 public void onUpdateSurface() { 4647 // We take care of format and type changes on our own. 4648 throw new IllegalStateException("Shouldn't be here"); 4649 } 4650 4651 public boolean isCreating() { 4652 return mIsCreating; 4653 } 4654 4655 @Override 4656 public void setFixedSize(int width, int height) { 4657 throw new UnsupportedOperationException( 4658 "Currently only support sizing from layout"); 4659 } 4660 4661 public void setKeepScreenOn(boolean screenOn) { 4662 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4663 } 4664 } 4665 4666 static class InputMethodCallback extends IInputMethodCallback.Stub { 4667 private WeakReference<ViewRootImpl> mViewAncestor; 4668 4669 public InputMethodCallback(ViewRootImpl viewAncestor) { 4670 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4671 } 4672 4673 public void finishedEvent(int seq, boolean handled) { 4674 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4675 if (viewAncestor != null) { 4676 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4677 } 4678 } 4679 4680 public void sessionCreated(IInputMethodSession session) { 4681 // Stub -- not for use in the client. 4682 } 4683 } 4684 4685 static class W extends IWindow.Stub { 4686 private final WeakReference<ViewRootImpl> mViewAncestor; 4687 4688 W(ViewRootImpl viewAncestor) { 4689 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4690 } 4691 4692 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4693 boolean reportDraw, Configuration newConfig) { 4694 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4695 if (viewAncestor != null) { 4696 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4697 newConfig); 4698 } 4699 } 4700 4701 public void dispatchAppVisibility(boolean visible) { 4702 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4703 if (viewAncestor != null) { 4704 viewAncestor.dispatchAppVisibility(visible); 4705 } 4706 } 4707 4708 public void dispatchScreenState(boolean on) { 4709 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4710 if (viewAncestor != null) { 4711 viewAncestor.dispatchScreenStateChange(on); 4712 } 4713 } 4714 4715 public void dispatchGetNewSurface() { 4716 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4717 if (viewAncestor != null) { 4718 viewAncestor.dispatchGetNewSurface(); 4719 } 4720 } 4721 4722 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4723 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4724 if (viewAncestor != null) { 4725 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4726 } 4727 } 4728 4729 private static int checkCallingPermission(String permission) { 4730 try { 4731 return ActivityManagerNative.getDefault().checkPermission( 4732 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4733 } catch (RemoteException e) { 4734 return PackageManager.PERMISSION_DENIED; 4735 } 4736 } 4737 4738 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4739 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4740 if (viewAncestor != null) { 4741 final View view = viewAncestor.mView; 4742 if (view != null) { 4743 if (checkCallingPermission(Manifest.permission.DUMP) != 4744 PackageManager.PERMISSION_GRANTED) { 4745 throw new SecurityException("Insufficient permissions to invoke" 4746 + " executeCommand() from pid=" + Binder.getCallingPid() 4747 + ", uid=" + Binder.getCallingUid()); 4748 } 4749 4750 OutputStream clientStream = null; 4751 try { 4752 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4753 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4754 } catch (IOException e) { 4755 e.printStackTrace(); 4756 } finally { 4757 if (clientStream != null) { 4758 try { 4759 clientStream.close(); 4760 } catch (IOException e) { 4761 e.printStackTrace(); 4762 } 4763 } 4764 } 4765 } 4766 } 4767 } 4768 4769 public void closeSystemDialogs(String reason) { 4770 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4771 if (viewAncestor != null) { 4772 viewAncestor.dispatchCloseSystemDialogs(reason); 4773 } 4774 } 4775 4776 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4777 boolean sync) { 4778 if (sync) { 4779 try { 4780 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4781 } catch (RemoteException e) { 4782 } 4783 } 4784 } 4785 4786 public void dispatchWallpaperCommand(String action, int x, int y, 4787 int z, Bundle extras, boolean sync) { 4788 if (sync) { 4789 try { 4790 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4791 } catch (RemoteException e) { 4792 } 4793 } 4794 } 4795 4796 /* Drag/drop */ 4797 public void dispatchDragEvent(DragEvent event) { 4798 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4799 if (viewAncestor != null) { 4800 viewAncestor.dispatchDragEvent(event); 4801 } 4802 } 4803 4804 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4805 int localValue, int localChanges) { 4806 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4807 if (viewAncestor != null) { 4808 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4809 localValue, localChanges); 4810 } 4811 } 4812 4813 public void doneAnimating() { 4814 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4815 if (viewAncestor != null) { 4816 viewAncestor.dispatchDoneAnimating(); 4817 } 4818 } 4819 } 4820 4821 /** 4822 * Maintains state information for a single trackball axis, generating 4823 * discrete (DPAD) movements based on raw trackball motion. 4824 */ 4825 static final class TrackballAxis { 4826 /** 4827 * The maximum amount of acceleration we will apply. 4828 */ 4829 static final float MAX_ACCELERATION = 20; 4830 4831 /** 4832 * The maximum amount of time (in milliseconds) between events in order 4833 * for us to consider the user to be doing fast trackball movements, 4834 * and thus apply an acceleration. 4835 */ 4836 static final long FAST_MOVE_TIME = 150; 4837 4838 /** 4839 * Scaling factor to the time (in milliseconds) between events to how 4840 * much to multiple/divide the current acceleration. When movement 4841 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4842 * FAST_MOVE_TIME it divides it. 4843 */ 4844 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4845 4846 float position; 4847 float absPosition; 4848 float acceleration = 1; 4849 long lastMoveTime = 0; 4850 int step; 4851 int dir; 4852 int nonAccelMovement; 4853 4854 void reset(int _step) { 4855 position = 0; 4856 acceleration = 1; 4857 lastMoveTime = 0; 4858 step = _step; 4859 dir = 0; 4860 } 4861 4862 /** 4863 * Add trackball movement into the state. If the direction of movement 4864 * has been reversed, the state is reset before adding the 4865 * movement (so that you don't have to compensate for any previously 4866 * collected movement before see the result of the movement in the 4867 * new direction). 4868 * 4869 * @return Returns the absolute value of the amount of movement 4870 * collected so far. 4871 */ 4872 float collect(float off, long time, String axis) { 4873 long normTime; 4874 if (off > 0) { 4875 normTime = (long)(off * FAST_MOVE_TIME); 4876 if (dir < 0) { 4877 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4878 position = 0; 4879 step = 0; 4880 acceleration = 1; 4881 lastMoveTime = 0; 4882 } 4883 dir = 1; 4884 } else if (off < 0) { 4885 normTime = (long)((-off) * FAST_MOVE_TIME); 4886 if (dir > 0) { 4887 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4888 position = 0; 4889 step = 0; 4890 acceleration = 1; 4891 lastMoveTime = 0; 4892 } 4893 dir = -1; 4894 } else { 4895 normTime = 0; 4896 } 4897 4898 // The number of milliseconds between each movement that is 4899 // considered "normal" and will not result in any acceleration 4900 // or deceleration, scaled by the offset we have here. 4901 if (normTime > 0) { 4902 long delta = time - lastMoveTime; 4903 lastMoveTime = time; 4904 float acc = acceleration; 4905 if (delta < normTime) { 4906 // The user is scrolling rapidly, so increase acceleration. 4907 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4908 if (scale > 1) acc *= scale; 4909 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4910 + off + " normTime=" + normTime + " delta=" + delta 4911 + " scale=" + scale + " acc=" + acc); 4912 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4913 } else { 4914 // The user is scrolling slowly, so decrease acceleration. 4915 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4916 if (scale > 1) acc /= scale; 4917 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4918 + off + " normTime=" + normTime + " delta=" + delta 4919 + " scale=" + scale + " acc=" + acc); 4920 acceleration = acc > 1 ? acc : 1; 4921 } 4922 } 4923 position += off; 4924 return (absPosition = Math.abs(position)); 4925 } 4926 4927 /** 4928 * Generate the number of discrete movement events appropriate for 4929 * the currently collected trackball movement. 4930 * 4931 * @param precision The minimum movement required to generate the 4932 * first discrete movement. 4933 * 4934 * @return Returns the number of discrete movements, either positive 4935 * or negative, or 0 if there is not enough trackball movement yet 4936 * for a discrete movement. 4937 */ 4938 int generate(float precision) { 4939 int movement = 0; 4940 nonAccelMovement = 0; 4941 do { 4942 final int dir = position >= 0 ? 1 : -1; 4943 switch (step) { 4944 // If we are going to execute the first step, then we want 4945 // to do this as soon as possible instead of waiting for 4946 // a full movement, in order to make things look responsive. 4947 case 0: 4948 if (absPosition < precision) { 4949 return movement; 4950 } 4951 movement += dir; 4952 nonAccelMovement += dir; 4953 step = 1; 4954 break; 4955 // If we have generated the first movement, then we need 4956 // to wait for the second complete trackball motion before 4957 // generating the second discrete movement. 4958 case 1: 4959 if (absPosition < 2) { 4960 return movement; 4961 } 4962 movement += dir; 4963 nonAccelMovement += dir; 4964 position += dir > 0 ? -2 : 2; 4965 absPosition = Math.abs(position); 4966 step = 2; 4967 break; 4968 // After the first two, we generate discrete movements 4969 // consistently with the trackball, applying an acceleration 4970 // if the trackball is moving quickly. This is a simple 4971 // acceleration on top of what we already compute based 4972 // on how quickly the wheel is being turned, to apply 4973 // a longer increasing acceleration to continuous movement 4974 // in one direction. 4975 default: 4976 if (absPosition < 1) { 4977 return movement; 4978 } 4979 movement += dir; 4980 position += dir >= 0 ? -1 : 1; 4981 absPosition = Math.abs(position); 4982 float acc = acceleration; 4983 acc *= 1.1f; 4984 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4985 break; 4986 } 4987 } while (true); 4988 } 4989 } 4990 4991 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4992 public CalledFromWrongThreadException(String msg) { 4993 super(msg); 4994 } 4995 } 4996 4997 private SurfaceHolder mHolder = new SurfaceHolder() { 4998 // we only need a SurfaceHolder for opengl. it would be nice 4999 // to implement everything else though, especially the callback 5000 // support (opengl doesn't make use of it right now, but eventually 5001 // will). 5002 public Surface getSurface() { 5003 return mSurface; 5004 } 5005 5006 public boolean isCreating() { 5007 return false; 5008 } 5009 5010 public void addCallback(Callback callback) { 5011 } 5012 5013 public void removeCallback(Callback callback) { 5014 } 5015 5016 public void setFixedSize(int width, int height) { 5017 } 5018 5019 public void setSizeFromLayout() { 5020 } 5021 5022 public void setFormat(int format) { 5023 } 5024 5025 public void setType(int type) { 5026 } 5027 5028 public void setKeepScreenOn(boolean screenOn) { 5029 } 5030 5031 public Canvas lockCanvas() { 5032 return null; 5033 } 5034 5035 public Canvas lockCanvas(Rect dirty) { 5036 return null; 5037 } 5038 5039 public void unlockCanvasAndPost(Canvas canvas) { 5040 } 5041 public Rect getSurfaceFrame() { 5042 return null; 5043 } 5044 }; 5045 5046 static RunQueue getRunQueue() { 5047 RunQueue rq = sRunQueues.get(); 5048 if (rq != null) { 5049 return rq; 5050 } 5051 rq = new RunQueue(); 5052 sRunQueues.set(rq); 5053 return rq; 5054 } 5055 5056 /** 5057 * The run queue is used to enqueue pending work from Views when no Handler is 5058 * attached. The work is executed during the next call to performTraversals on 5059 * the thread. 5060 * @hide 5061 */ 5062 static final class RunQueue { 5063 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5064 5065 void post(Runnable action) { 5066 postDelayed(action, 0); 5067 } 5068 5069 void postDelayed(Runnable action, long delayMillis) { 5070 HandlerAction handlerAction = new HandlerAction(); 5071 handlerAction.action = action; 5072 handlerAction.delay = delayMillis; 5073 5074 synchronized (mActions) { 5075 mActions.add(handlerAction); 5076 } 5077 } 5078 5079 void removeCallbacks(Runnable action) { 5080 final HandlerAction handlerAction = new HandlerAction(); 5081 handlerAction.action = action; 5082 5083 synchronized (mActions) { 5084 final ArrayList<HandlerAction> actions = mActions; 5085 5086 while (actions.remove(handlerAction)) { 5087 // Keep going 5088 } 5089 } 5090 } 5091 5092 void executeActions(Handler handler) { 5093 synchronized (mActions) { 5094 final ArrayList<HandlerAction> actions = mActions; 5095 final int count = actions.size(); 5096 5097 for (int i = 0; i < count; i++) { 5098 final HandlerAction handlerAction = actions.get(i); 5099 handler.postDelayed(handlerAction.action, handlerAction.delay); 5100 } 5101 5102 actions.clear(); 5103 } 5104 } 5105 5106 private static class HandlerAction { 5107 Runnable action; 5108 long delay; 5109 5110 @Override 5111 public boolean equals(Object o) { 5112 if (this == o) return true; 5113 if (o == null || getClass() != o.getClass()) return false; 5114 5115 HandlerAction that = (HandlerAction) o; 5116 return !(action != null ? !action.equals(that.action) : that.action != null); 5117 5118 } 5119 5120 @Override 5121 public int hashCode() { 5122 int result = action != null ? action.hashCode() : 0; 5123 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5124 return result; 5125 } 5126 } 5127 } 5128 5129 /** 5130 * Class for managing the accessibility interaction connection 5131 * based on the global accessibility state. 5132 */ 5133 final class AccessibilityInteractionConnectionManager 5134 implements AccessibilityStateChangeListener { 5135 public void onAccessibilityStateChanged(boolean enabled) { 5136 if (enabled) { 5137 ensureConnection(); 5138 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5139 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5140 View focusedView = mView.findFocus(); 5141 if (focusedView != null && focusedView != mView) { 5142 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5143 } 5144 } 5145 } else { 5146 ensureNoConnection(); 5147 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5148 } 5149 } 5150 5151 public void ensureConnection() { 5152 if (mAttachInfo != null) { 5153 final boolean registered = 5154 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5155 if (!registered) { 5156 mAttachInfo.mAccessibilityWindowId = 5157 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5158 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5159 } 5160 } 5161 } 5162 5163 public void ensureNoConnection() { 5164 final boolean registered = 5165 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5166 if (registered) { 5167 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5168 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5169 } 5170 } 5171 } 5172 5173 /** 5174 * This class is an interface this ViewAncestor provides to the 5175 * AccessibilityManagerService to the latter can interact with 5176 * the view hierarchy in this ViewAncestor. 5177 */ 5178 static final class AccessibilityInteractionConnection 5179 extends IAccessibilityInteractionConnection.Stub { 5180 private final WeakReference<ViewRootImpl> mViewRootImpl; 5181 5182 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5183 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5184 } 5185 5186 @Override 5187 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5188 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5189 int flags, int interrogatingPid, long interrogatingTid) { 5190 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5191 if (viewRootImpl != null && viewRootImpl.mView != null) { 5192 viewRootImpl.getAccessibilityInteractionController() 5193 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5194 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5195 } else { 5196 // We cannot make the call and notify the caller so it does not wait. 5197 try { 5198 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5199 } catch (RemoteException re) { 5200 /* best effort - ignore */ 5201 } 5202 } 5203 } 5204 5205 @Override 5206 public void performAccessibilityAction(long accessibilityNodeId, int action, 5207 Bundle arguments, int interactionId, 5208 IAccessibilityInteractionConnectionCallback callback, int flags, 5209 int interogatingPid, long interrogatingTid) { 5210 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5211 if (viewRootImpl != null && viewRootImpl.mView != null) { 5212 viewRootImpl.getAccessibilityInteractionController() 5213 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5214 interactionId, callback, flags, interogatingPid, interrogatingTid); 5215 } else { 5216 // We cannot make the call and notify the caller so it does not wait. 5217 try { 5218 callback.setPerformAccessibilityActionResult(false, interactionId); 5219 } catch (RemoteException re) { 5220 /* best effort - ignore */ 5221 } 5222 } 5223 } 5224 5225 @Override 5226 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5227 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5228 int flags, int interrogatingPid, long interrogatingTid) { 5229 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5230 if (viewRootImpl != null && viewRootImpl.mView != null) { 5231 viewRootImpl.getAccessibilityInteractionController() 5232 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5233 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5234 } else { 5235 // We cannot make the call and notify the caller so it does not wait. 5236 try { 5237 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5238 } catch (RemoteException re) { 5239 /* best effort - ignore */ 5240 } 5241 } 5242 } 5243 5244 @Override 5245 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5246 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5247 int flags, int interrogatingPid, long interrogatingTid) { 5248 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5249 if (viewRootImpl != null && viewRootImpl.mView != null) { 5250 viewRootImpl.getAccessibilityInteractionController() 5251 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5252 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5253 } else { 5254 // We cannot make the call and notify the caller so it does not wait. 5255 try { 5256 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5257 } catch (RemoteException re) { 5258 /* best effort - ignore */ 5259 } 5260 } 5261 } 5262 5263 @Override 5264 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5265 IAccessibilityInteractionConnectionCallback callback, int flags, 5266 int interrogatingPid, long interrogatingTid) { 5267 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5268 if (viewRootImpl != null && viewRootImpl.mView != null) { 5269 viewRootImpl.getAccessibilityInteractionController() 5270 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5271 callback, flags, interrogatingPid, interrogatingTid); 5272 } else { 5273 // We cannot make the call and notify the caller so it does not wait. 5274 try { 5275 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5276 } catch (RemoteException re) { 5277 /* best effort - ignore */ 5278 } 5279 } 5280 } 5281 5282 @Override 5283 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5284 IAccessibilityInteractionConnectionCallback callback, int flags, 5285 int interrogatingPid, long interrogatingTid) { 5286 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5287 if (viewRootImpl != null && viewRootImpl.mView != null) { 5288 viewRootImpl.getAccessibilityInteractionController() 5289 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5290 callback, flags, interrogatingPid, interrogatingTid); 5291 } else { 5292 // We cannot make the call and notify the caller so it does not wait. 5293 try { 5294 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5295 } catch (RemoteException re) { 5296 /* best effort - ignore */ 5297 } 5298 } 5299 } 5300 } 5301 5302 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5303 public View mSource; 5304 5305 public void run() { 5306 if (mSource != null) { 5307 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5308 mSource.resetAccessibilityStateChanged(); 5309 mSource = null; 5310 } 5311 } 5312 } 5313} 5314