ViewRootImpl.java revision 3fe38c0e73e520c6c38454a41a4cffa16faaf67d
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 Rect mPendingSystemInsets = new Rect(); 265 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 266 = new ViewTreeObserver.InternalInsetsInfo(); 267 268 final Rect mFitSystemWindowsInsets = new Rect(); 269 270 final Configuration mLastConfiguration = new Configuration(); 271 final Configuration mPendingConfiguration = new Configuration(); 272 273 class ResizedInfo { 274 Rect coveredInsets; 275 Rect visibleInsets; 276 Configuration newConfig; 277 } 278 279 boolean mScrollMayChange; 280 int mSoftInputMode; 281 View mLastScrolledFocus; 282 int mScrollY; 283 int mCurScrollY; 284 Scroller mScroller; 285 HardwareLayer mResizeBuffer; 286 long mResizeBufferStartTime; 287 int mResizeBufferDuration; 288 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 289 private ArrayList<LayoutTransition> mPendingTransitions; 290 291 final ViewConfiguration mViewConfiguration; 292 293 /* Drag/drop */ 294 ClipDescription mDragDescription; 295 View mCurrentDragView; 296 volatile Object mLocalDragState; 297 final PointF mDragPoint = new PointF(); 298 final PointF mLastTouchPoint = new PointF(); 299 300 private boolean mProfileRendering; 301 private Thread mRenderProfiler; 302 private volatile boolean mRenderProfilingEnabled; 303 304 // Variables to track frames per second, enabled via DEBUG_FPS flag 305 private long mFpsStartTime = -1; 306 private long mFpsPrevTime = -1; 307 private int mFpsNumFrames; 308 309 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 310 311 /** 312 * see {@link #playSoundEffect(int)} 313 */ 314 AudioManager mAudioManager; 315 316 final AccessibilityManager mAccessibilityManager; 317 318 AccessibilityInteractionController mAccessibilityInteractionController; 319 320 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 321 322 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 323 324 HashSet<View> mTempHashSet; 325 326 private final int mDensity; 327 328 final KeyCharacterMap.FallbackAction mFallbackAction = new KeyCharacterMap.FallbackAction(); 329 330 /** 331 * Consistency verifier for debugging purposes. 332 */ 333 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 334 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 335 new InputEventConsistencyVerifier(this, 0) : null; 336 337 public static IWindowSession getWindowSession(Looper mainLooper) { 338 synchronized (mStaticInit) { 339 if (!mInitialized) { 340 try { 341 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 342 IWindowManager windowManager = Display.getWindowManager(); 343 sWindowSession = windowManager.openSession( 344 imm.getClient(), imm.getInputContext()); 345 float animatorScale = windowManager.getAnimationScale(2); 346 ValueAnimator.setDurationScale(animatorScale); 347 mInitialized = true; 348 } catch (RemoteException e) { 349 } 350 } 351 return sWindowSession; 352 } 353 } 354 355 static final class SystemUiVisibilityInfo { 356 int seq; 357 int globalVisibility; 358 int localValue; 359 int localChanges; 360 } 361 362 public ViewRootImpl(Context context) { 363 super(); 364 365 if (MEASURE_LATENCY) { 366 if (lt == null) { 367 lt = new LatencyTimer(100, 1000); 368 } 369 } 370 371 // Initialize the statics when this class is first instantiated. This is 372 // done here instead of in the static block because Zygote does not 373 // allow the spawning of threads. 374 getWindowSession(context.getMainLooper()); 375 376 mThread = Thread.currentThread(); 377 mLocation = new WindowLeaked(null); 378 mLocation.fillInStackTrace(); 379 mWidth = -1; 380 mHeight = -1; 381 mDirty = new Rect(); 382 mTempRect = new Rect(); 383 mVisRect = new Rect(); 384 mWinFrame = new Rect(); 385 mWindow = new W(this); 386 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 387 mInputMethodCallback = new InputMethodCallback(this); 388 mViewVisibility = View.GONE; 389 mTransparentRegion = new Region(); 390 mPreviousTransparentRegion = new Region(); 391 mFirst = true; // true for the first time the view is added 392 mAdded = false; 393 mAccessibilityManager = AccessibilityManager.getInstance(context); 394 mAccessibilityInteractionConnectionManager = 395 new AccessibilityInteractionConnectionManager(); 396 mAccessibilityManager.addAccessibilityStateChangeListener( 397 mAccessibilityInteractionConnectionManager); 398 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 399 mViewConfiguration = ViewConfiguration.get(context); 400 mDensity = context.getResources().getDisplayMetrics().densityDpi; 401 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 402 mProfileRendering = Boolean.parseBoolean( 403 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 404 mChoreographer = Choreographer.getInstance(); 405 406 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 407 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 408 } 409 410 /** 411 * @return True if the application requests the use of a separate render thread, 412 * false otherwise 413 */ 414 private static boolean isRenderThreadRequested(Context context) { 415 if (USE_RENDER_THREAD) { 416 synchronized (sRenderThreadQueryLock) { 417 if (!sRenderThreadQueried) { 418 final PackageManager packageManager = context.getPackageManager(); 419 final String packageName = context.getApplicationInfo().packageName; 420 try { 421 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 422 PackageManager.GET_META_DATA); 423 if (applicationInfo.metaData != null) { 424 sUseRenderThread = applicationInfo.metaData.getBoolean( 425 "android.graphics.renderThread", false); 426 } 427 } catch (PackageManager.NameNotFoundException e) { 428 } finally { 429 sRenderThreadQueried = true; 430 } 431 } 432 return sUseRenderThread; 433 } 434 } else { 435 return false; 436 } 437 } 438 439 public static void addFirstDrawHandler(Runnable callback) { 440 synchronized (sFirstDrawHandlers) { 441 if (!sFirstDrawComplete) { 442 sFirstDrawHandlers.add(callback); 443 } 444 } 445 } 446 447 public static void addConfigCallback(ComponentCallbacks callback) { 448 synchronized (sConfigCallbacks) { 449 sConfigCallbacks.add(callback); 450 } 451 } 452 453 // FIXME for perf testing only 454 private boolean mProfile = false; 455 456 /** 457 * Call this to profile the next traversal call. 458 * FIXME for perf testing only. Remove eventually 459 */ 460 public void profile() { 461 mProfile = true; 462 } 463 464 /** 465 * Indicates whether we are in touch mode. Calling this method triggers an IPC 466 * call and should be avoided whenever possible. 467 * 468 * @return True, if the device is in touch mode, false otherwise. 469 * 470 * @hide 471 */ 472 static boolean isInTouchMode() { 473 if (mInitialized) { 474 try { 475 return sWindowSession.getInTouchMode(); 476 } catch (RemoteException e) { 477 } 478 } 479 return false; 480 } 481 482 /** 483 * We have one child 484 */ 485 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 486 synchronized (this) { 487 if (mView == null) { 488 mView = view; 489 mFallbackEventHandler.setView(view); 490 mWindowAttributes.copyFrom(attrs); 491 attrs = mWindowAttributes; 492 493 if (view instanceof RootViewSurfaceTaker) { 494 mSurfaceHolderCallback = 495 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 496 if (mSurfaceHolderCallback != null) { 497 mSurfaceHolder = new TakenSurfaceHolder(); 498 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 499 } 500 } 501 502 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 503 mTranslator = compatibilityInfo.getTranslator(); 504 505 // If the application owns the surface, don't enable hardware acceleration 506 if (mSurfaceHolder == null) { 507 enableHardwareAcceleration(mView.getContext(), attrs); 508 } 509 510 boolean restore = false; 511 if (mTranslator != null) { 512 mSurface.setCompatibilityTranslator(mTranslator); 513 restore = true; 514 attrs.backup(); 515 mTranslator.translateWindowLayout(attrs); 516 } 517 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 518 519 if (!compatibilityInfo.supportsScreen()) { 520 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 521 mLastInCompatMode = true; 522 } 523 524 mSoftInputMode = attrs.softInputMode; 525 mWindowAttributesChanged = true; 526 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 527 mAttachInfo.mRootView = view; 528 mAttachInfo.mScalingRequired = mTranslator != null; 529 mAttachInfo.mApplicationScale = 530 mTranslator == null ? 1.0f : mTranslator.applicationScale; 531 if (panelParentView != null) { 532 mAttachInfo.mPanelParentWindowToken 533 = panelParentView.getApplicationWindowToken(); 534 } 535 mAdded = true; 536 int res; /* = WindowManagerImpl.ADD_OKAY; */ 537 538 // Schedule the first layout -before- adding to the window 539 // manager, to make sure we do the relayout before receiving 540 // any other events from the system. 541 requestLayout(); 542 if ((mWindowAttributes.inputFeatures 543 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 544 mInputChannel = new InputChannel(); 545 } 546 try { 547 mOrigWindowType = mWindowAttributes.type; 548 mAttachInfo.mRecomputeGlobalAttributes = true; 549 collectViewAttributes(); 550 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 551 getHostVisibility(), mAttachInfo.mContentInsets, 552 mInputChannel); 553 } catch (RemoteException e) { 554 mAdded = false; 555 mView = null; 556 mAttachInfo.mRootView = null; 557 mInputChannel = null; 558 mFallbackEventHandler.setView(null); 559 unscheduleTraversals(); 560 throw new RuntimeException("Adding window failed", e); 561 } finally { 562 if (restore) { 563 attrs.restore(); 564 } 565 } 566 567 if (mTranslator != null) { 568 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 569 } 570 mPendingContentInsets.set(mAttachInfo.mContentInsets); 571 mPendingVisibleInsets.set(0, 0, 0, 0); 572 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 573 if (res < WindowManagerImpl.ADD_OKAY) { 574 mView = null; 575 mAttachInfo.mRootView = null; 576 mAdded = false; 577 mFallbackEventHandler.setView(null); 578 unscheduleTraversals(); 579 switch (res) { 580 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 581 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 582 throw new WindowManagerImpl.BadTokenException( 583 "Unable to add window -- token " + attrs.token 584 + " is not valid; is your activity running?"); 585 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 586 throw new WindowManagerImpl.BadTokenException( 587 "Unable to add window -- token " + attrs.token 588 + " is not for an application"); 589 case WindowManagerImpl.ADD_APP_EXITING: 590 throw new WindowManagerImpl.BadTokenException( 591 "Unable to add window -- app for token " + attrs.token 592 + " is exiting"); 593 case WindowManagerImpl.ADD_DUPLICATE_ADD: 594 throw new WindowManagerImpl.BadTokenException( 595 "Unable to add window -- window " + mWindow 596 + " has already been added"); 597 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 598 // Silently ignore -- we would have just removed it 599 // right away, anyway. 600 return; 601 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 602 throw new WindowManagerImpl.BadTokenException( 603 "Unable to add window " + mWindow + 604 " -- another window of this type already exists"); 605 case WindowManagerImpl.ADD_PERMISSION_DENIED: 606 throw new WindowManagerImpl.BadTokenException( 607 "Unable to add window " + mWindow + 608 " -- permission denied for this window type"); 609 } 610 throw new RuntimeException( 611 "Unable to add window -- unknown error code " + res); 612 } 613 614 if (view instanceof RootViewSurfaceTaker) { 615 mInputQueueCallback = 616 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 617 } 618 if (mInputChannel != null) { 619 if (mInputQueueCallback != null) { 620 mInputQueue = new InputQueue(mInputChannel); 621 mInputQueueCallback.onInputQueueCreated(mInputQueue); 622 } else { 623 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 624 Looper.myLooper()); 625 } 626 } 627 628 view.assignParent(this); 629 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 630 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 631 632 if (mAccessibilityManager.isEnabled()) { 633 mAccessibilityInteractionConnectionManager.ensureConnection(); 634 } 635 636 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 637 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 638 } 639 640 setAccessibilityFocusedHost(null); 641 } 642 } 643 } 644 645 void destroyHardwareResources() { 646 if (mAttachInfo.mHardwareRenderer != null) { 647 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 648 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 649 } 650 mAttachInfo.mHardwareRenderer.destroy(false); 651 } 652 } 653 654 void terminateHardwareResources() { 655 if (mAttachInfo.mHardwareRenderer != null) { 656 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 657 mAttachInfo.mHardwareRenderer.destroy(false); 658 } 659 } 660 661 void destroyHardwareLayers() { 662 if (mThread != Thread.currentThread()) { 663 if (mAttachInfo.mHardwareRenderer != null && 664 mAttachInfo.mHardwareRenderer.isEnabled()) { 665 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 666 } 667 } else { 668 if (mAttachInfo.mHardwareRenderer != null && 669 mAttachInfo.mHardwareRenderer.isEnabled()) { 670 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 671 } 672 } 673 } 674 675 public void attachFunctor(int functor) { 676 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 677 mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 678 } 679 } 680 681 public void detachFunctor(int functor) { 682 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 683 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 684 } 685 } 686 687 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 688 mAttachInfo.mHardwareAccelerated = false; 689 mAttachInfo.mHardwareAccelerationRequested = false; 690 691 // Don't enable hardware acceleration when the application is in compatibility mode 692 if (mTranslator != null) return; 693 694 // Try to enable hardware acceleration if requested 695 final boolean hardwareAccelerated = 696 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 697 698 if (hardwareAccelerated) { 699 if (!HardwareRenderer.isAvailable()) { 700 return; 701 } 702 703 // Persistent processes (including the system) should not do 704 // accelerated rendering on low-end devices. In that case, 705 // sRendererDisabled will be set. In addition, the system process 706 // itself should never do accelerated rendering. In that case, both 707 // sRendererDisabled and sSystemRendererDisabled are set. When 708 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 709 // can be used by code on the system process to escape that and enable 710 // HW accelerated drawing. (This is basically for the lock screen.) 711 712 final boolean fakeHwAccelerated = (attrs.privateFlags & 713 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 714 final boolean forceHwAccelerated = (attrs.privateFlags & 715 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 716 717 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 718 && forceHwAccelerated)) { 719 // Don't enable hardware acceleration when we're not on the main thread 720 if (!HardwareRenderer.sSystemRendererDisabled && 721 Looper.getMainLooper() != Looper.myLooper()) { 722 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 723 + "acceleration outside of the main thread, aborting"); 724 return; 725 } 726 727 final boolean renderThread = isRenderThreadRequested(context); 728 if (renderThread) { 729 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 730 } 731 732 if (mAttachInfo.mHardwareRenderer != null) { 733 mAttachInfo.mHardwareRenderer.destroy(true); 734 } 735 736 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 737 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 738 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 739 = mAttachInfo.mHardwareRenderer != null; 740 741 } else if (fakeHwAccelerated) { 742 // The window had wanted to use hardware acceleration, but this 743 // is not allowed in its process. By setting this flag, it can 744 // still render as if it was accelerated. This is basically for 745 // the preview windows the window manager shows for launching 746 // applications, so they will look more like the app being launched. 747 mAttachInfo.mHardwareAccelerationRequested = true; 748 } 749 } 750 } 751 752 public View getView() { 753 return mView; 754 } 755 756 final WindowLeaked getLocation() { 757 return mLocation; 758 } 759 760 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 761 synchronized (this) { 762 int oldSoftInputMode = mWindowAttributes.softInputMode; 763 // preserve compatible window flag if exists. 764 int compatibleWindowFlag = 765 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 766 // transfer over system UI visibility values as they carry current state. 767 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 768 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 769 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 770 mWindowAttributes.flags |= compatibleWindowFlag; 771 772 if (newView) { 773 mSoftInputMode = attrs.softInputMode; 774 requestLayout(); 775 } 776 // Don't lose the mode we last auto-computed. 777 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 778 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 779 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 780 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 781 | (oldSoftInputMode 782 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 783 } 784 mWindowAttributesChanged = true; 785 scheduleTraversals(); 786 } 787 } 788 789 void handleAppVisibility(boolean visible) { 790 if (mAppVisible != visible) { 791 mAppVisible = visible; 792 scheduleTraversals(); 793 } 794 } 795 796 void handleGetNewSurface() { 797 mNewSurfaceNeeded = true; 798 mFullRedrawNeeded = true; 799 scheduleTraversals(); 800 } 801 802 void handleScreenStateChange(boolean on) { 803 if (on != mAttachInfo.mScreenOn) { 804 mAttachInfo.mScreenOn = on; 805 if (mView != null) { 806 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 807 } 808 if (on) { 809 mFullRedrawNeeded = true; 810 scheduleTraversals(); 811 } 812 } 813 } 814 815 /** 816 * {@inheritDoc} 817 */ 818 public void requestFitSystemWindows() { 819 checkThread(); 820 mFitSystemWindowsRequested = true; 821 scheduleTraversals(); 822 } 823 824 /** 825 * {@inheritDoc} 826 */ 827 public void requestLayout() { 828 checkThread(); 829 mLayoutRequested = true; 830 scheduleTraversals(); 831 } 832 833 /** 834 * {@inheritDoc} 835 */ 836 public boolean isLayoutRequested() { 837 return mLayoutRequested; 838 } 839 840 void invalidate() { 841 mDirty.set(0, 0, mWidth, mHeight); 842 scheduleTraversals(); 843 } 844 845 public void invalidateChild(View child, Rect dirty) { 846 invalidateChildInParent(null, dirty); 847 } 848 849 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 850 checkThread(); 851 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 852 853 if (dirty == null) { 854 invalidate(); 855 return null; 856 } 857 858 if (mCurScrollY != 0 || mTranslator != null) { 859 mTempRect.set(dirty); 860 dirty = mTempRect; 861 if (mCurScrollY != 0) { 862 dirty.offset(0, -mCurScrollY); 863 } 864 if (mTranslator != null) { 865 mTranslator.translateRectInAppWindowToScreen(dirty); 866 } 867 if (mAttachInfo.mScalingRequired) { 868 dirty.inset(-1, -1); 869 } 870 } 871 872 final Rect localDirty = mDirty; 873 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 874 mAttachInfo.mSetIgnoreDirtyState = true; 875 mAttachInfo.mIgnoreDirtyState = true; 876 } 877 878 // Add the new dirty rect to the current one 879 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 880 // Intersect with the bounds of the window to skip 881 // updates that lie outside of the visible region 882 final float appScale = mAttachInfo.mApplicationScale; 883 localDirty.intersect(0, 0, 884 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 885 886 if (!mWillDrawSoon) { 887 scheduleTraversals(); 888 } 889 890 return null; 891 } 892 893 void setStopped(boolean stopped) { 894 if (mStopped != stopped) { 895 mStopped = stopped; 896 if (!stopped) { 897 scheduleTraversals(); 898 } 899 } 900 } 901 902 public ViewParent getParent() { 903 return null; 904 } 905 906 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 907 if (child != mView) { 908 throw new RuntimeException("child is not mine, honest!"); 909 } 910 // Note: don't apply scroll offset, because we want to know its 911 // visibility in the virtual canvas being given to the view hierarchy. 912 return r.intersect(0, 0, mWidth, mHeight); 913 } 914 915 public void bringChildToFront(View child) { 916 } 917 918 int getHostVisibility() { 919 return mAppVisible ? mView.getVisibility() : View.GONE; 920 } 921 922 void disposeResizeBuffer() { 923 if (mResizeBuffer != null) { 924 mResizeBuffer.destroy(); 925 mResizeBuffer = null; 926 } 927 } 928 929 /** 930 * Add LayoutTransition to the list of transitions to be started in the next traversal. 931 * This list will be cleared after the transitions on the list are start()'ed. These 932 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 933 * happens during the layout phase of traversal, which we want to complete before any of the 934 * animations are started (because those animations may side-effect properties that layout 935 * depends upon, like the bounding rectangles of the affected views). So we add the transition 936 * to the list and it is started just prior to starting the drawing phase of traversal. 937 * 938 * @param transition The LayoutTransition to be started on the next traversal. 939 * 940 * @hide 941 */ 942 public void requestTransitionStart(LayoutTransition transition) { 943 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 944 if (mPendingTransitions == null) { 945 mPendingTransitions = new ArrayList<LayoutTransition>(); 946 } 947 mPendingTransitions.add(transition); 948 } 949 } 950 951 void scheduleTraversals() { 952 if (!mTraversalScheduled) { 953 mTraversalScheduled = true; 954 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 955 mChoreographer.postCallback( 956 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 957 scheduleConsumeBatchedInput(); 958 } 959 } 960 961 void unscheduleTraversals() { 962 if (mTraversalScheduled) { 963 mTraversalScheduled = false; 964 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 965 mChoreographer.removeCallbacks( 966 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 967 } 968 } 969 970 void doTraversal() { 971 if (mTraversalScheduled) { 972 mTraversalScheduled = false; 973 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 974 975 if (mProfile) { 976 Debug.startMethodTracing("ViewAncestor"); 977 } 978 979 final long traversalStartTime; 980 if (ViewDebug.DEBUG_LATENCY) { 981 traversalStartTime = System.nanoTime(); 982 if (mLastTraversalFinishedTimeNanos != 0) { 983 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 984 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 985 + "ms since the last traversals finished."); 986 } else { 987 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 988 } 989 } 990 991 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 992 try { 993 performTraversals(); 994 } finally { 995 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 996 } 997 998 if (ViewDebug.DEBUG_LATENCY) { 999 long now = System.nanoTime(); 1000 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 1001 + ((now - traversalStartTime) * 0.000001f) 1002 + "ms."); 1003 mLastTraversalFinishedTimeNanos = now; 1004 } 1005 1006 if (mProfile) { 1007 Debug.stopMethodTracing(); 1008 mProfile = false; 1009 } 1010 } 1011 } 1012 1013 private boolean collectViewAttributes() { 1014 final View.AttachInfo attachInfo = mAttachInfo; 1015 if (attachInfo.mRecomputeGlobalAttributes) { 1016 //Log.i(TAG, "Computing view hierarchy attributes!"); 1017 attachInfo.mRecomputeGlobalAttributes = false; 1018 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1019 int oldVis = attachInfo.mSystemUiVisibility; 1020 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1021 attachInfo.mKeepScreenOn = false; 1022 attachInfo.mSystemUiVisibility = 0; 1023 attachInfo.mHasSystemUiListeners = false; 1024 mView.dispatchCollectViewAttributes(attachInfo, 0); 1025 if (attachInfo.mKeepScreenOn != oldScreenOn 1026 || attachInfo.mSystemUiVisibility != oldVis 1027 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1028 WindowManager.LayoutParams params = mWindowAttributes; 1029 if (attachInfo.mKeepScreenOn) { 1030 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1031 } 1032 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1033 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1034 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1035 return true; 1036 } 1037 } 1038 return false; 1039 } 1040 1041 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1042 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1043 int childWidthMeasureSpec; 1044 int childHeightMeasureSpec; 1045 boolean windowSizeMayChange = false; 1046 1047 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1048 "Measuring " + host + " in display " + desiredWindowWidth 1049 + "x" + desiredWindowHeight + "..."); 1050 1051 boolean goodMeasure = false; 1052 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1053 // On large screens, we don't want to allow dialogs to just 1054 // stretch to fill the entire width of the screen to display 1055 // one line of text. First try doing the layout at a smaller 1056 // size to see if it will fit. 1057 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1058 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1059 int baseSize = 0; 1060 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1061 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1062 } 1063 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1064 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1065 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1066 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1067 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1068 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1069 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1070 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1071 goodMeasure = true; 1072 } else { 1073 // Didn't fit in that size... try expanding a bit. 1074 baseSize = (baseSize+desiredWindowWidth)/2; 1075 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1076 + baseSize); 1077 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1078 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1079 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1080 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1081 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1082 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1083 goodMeasure = true; 1084 } 1085 } 1086 } 1087 } 1088 1089 if (!goodMeasure) { 1090 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1091 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1092 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1093 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1094 windowSizeMayChange = true; 1095 } 1096 } 1097 1098 if (DBG) { 1099 System.out.println("======================================"); 1100 System.out.println("performTraversals -- after measure"); 1101 host.debug(); 1102 } 1103 1104 return windowSizeMayChange; 1105 } 1106 1107 private void performTraversals() { 1108 // cache mView since it is used so much below... 1109 final View host = mView; 1110 1111 if (DBG) { 1112 System.out.println("======================================"); 1113 System.out.println("performTraversals"); 1114 host.debug(); 1115 } 1116 1117 if (host == null || !mAdded) 1118 return; 1119 1120 mWillDrawSoon = true; 1121 boolean windowSizeMayChange = false; 1122 boolean newSurface = false; 1123 boolean surfaceChanged = false; 1124 WindowManager.LayoutParams lp = mWindowAttributes; 1125 1126 int desiredWindowWidth; 1127 int desiredWindowHeight; 1128 1129 final View.AttachInfo attachInfo = mAttachInfo; 1130 1131 final int viewVisibility = getHostVisibility(); 1132 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1133 || mNewSurfaceNeeded; 1134 1135 WindowManager.LayoutParams params = null; 1136 if (mWindowAttributesChanged) { 1137 mWindowAttributesChanged = false; 1138 surfaceChanged = true; 1139 params = lp; 1140 } 1141 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1142 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1143 params = lp; 1144 mFullRedrawNeeded = true; 1145 mLayoutRequested = true; 1146 if (mLastInCompatMode) { 1147 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1148 mLastInCompatMode = false; 1149 } else { 1150 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1151 mLastInCompatMode = true; 1152 } 1153 } 1154 1155 mWindowAttributesChangesFlag = 0; 1156 1157 Rect frame = mWinFrame; 1158 if (mFirst) { 1159 mFullRedrawNeeded = true; 1160 mLayoutRequested = true; 1161 1162 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1163 // NOTE -- system code, won't try to do compat mode. 1164 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1165 Point size = new Point(); 1166 disp.getRealSize(size); 1167 desiredWindowWidth = size.x; 1168 desiredWindowHeight = size.y; 1169 } else { 1170 DisplayMetrics packageMetrics = 1171 mView.getContext().getResources().getDisplayMetrics(); 1172 desiredWindowWidth = packageMetrics.widthPixels; 1173 desiredWindowHeight = packageMetrics.heightPixels; 1174 } 1175 1176 // For the very first time, tell the view hierarchy that it 1177 // is attached to the window. Note that at this point the surface 1178 // object is not initialized to its backing store, but soon it 1179 // will be (assuming the window is visible). 1180 attachInfo.mSurface = mSurface; 1181 // We used to use the following condition to choose 32 bits drawing caches: 1182 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1183 // However, windows are now always 32 bits by default, so choose 32 bits 1184 attachInfo.mUse32BitDrawingCache = true; 1185 attachInfo.mHasWindowFocus = false; 1186 attachInfo.mWindowVisibility = viewVisibility; 1187 attachInfo.mRecomputeGlobalAttributes = false; 1188 viewVisibilityChanged = false; 1189 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1190 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1191 host.dispatchAttachedToWindow(attachInfo, 0); 1192 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1193 host.fitSystemWindows(mFitSystemWindowsInsets); 1194 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1195 1196 } else { 1197 desiredWindowWidth = frame.width(); 1198 desiredWindowHeight = frame.height(); 1199 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1200 if (DEBUG_ORIENTATION) Log.v(TAG, 1201 "View " + host + " resized to: " + frame); 1202 mFullRedrawNeeded = true; 1203 mLayoutRequested = true; 1204 windowSizeMayChange = true; 1205 } 1206 } 1207 1208 if (viewVisibilityChanged) { 1209 attachInfo.mWindowVisibility = viewVisibility; 1210 host.dispatchWindowVisibilityChanged(viewVisibility); 1211 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1212 destroyHardwareResources(); 1213 } 1214 if (viewVisibility == View.GONE) { 1215 // After making a window gone, we will count it as being 1216 // shown for the first time the next time it gets focus. 1217 mHasHadWindowFocus = false; 1218 } 1219 } 1220 1221 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1222 getRunQueue().executeActions(attachInfo.mHandler); 1223 1224 boolean insetsChanged = false; 1225 1226 boolean layoutRequested = mLayoutRequested && !mStopped; 1227 if (layoutRequested) { 1228 1229 final Resources res = mView.getContext().getResources(); 1230 1231 if (mFirst) { 1232 // make sure touch mode code executes by setting cached value 1233 // to opposite of the added touch mode. 1234 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1235 ensureTouchModeLocally(mAddedTouchMode); 1236 } else { 1237 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1238 insetsChanged = true; 1239 } 1240 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1241 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1242 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1243 + mAttachInfo.mVisibleInsets); 1244 } 1245 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1246 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1247 windowSizeMayChange = true; 1248 1249 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1250 // NOTE -- system code, won't try to do compat mode. 1251 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1252 Point size = new Point(); 1253 disp.getRealSize(size); 1254 desiredWindowWidth = size.x; 1255 desiredWindowHeight = size.y; 1256 } else { 1257 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1258 desiredWindowWidth = packageMetrics.widthPixels; 1259 desiredWindowHeight = packageMetrics.heightPixels; 1260 } 1261 } 1262 } 1263 1264 // Ask host how big it wants to be 1265 windowSizeMayChange |= measureHierarchy(host, lp, res, 1266 desiredWindowWidth, desiredWindowHeight); 1267 } 1268 1269 if (collectViewAttributes()) { 1270 params = lp; 1271 } 1272 if (attachInfo.mForceReportNewAttributes) { 1273 attachInfo.mForceReportNewAttributes = false; 1274 params = lp; 1275 } 1276 1277 if (mFirst || attachInfo.mViewVisibilityChanged) { 1278 attachInfo.mViewVisibilityChanged = false; 1279 int resizeMode = mSoftInputMode & 1280 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1281 // If we are in auto resize mode, then we need to determine 1282 // what mode to use now. 1283 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1284 final int N = attachInfo.mScrollContainers.size(); 1285 for (int i=0; i<N; i++) { 1286 if (attachInfo.mScrollContainers.get(i).isShown()) { 1287 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1288 } 1289 } 1290 if (resizeMode == 0) { 1291 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1292 } 1293 if ((lp.softInputMode & 1294 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1295 lp.softInputMode = (lp.softInputMode & 1296 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1297 resizeMode; 1298 params = lp; 1299 } 1300 } 1301 } 1302 1303 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1304 if (!PixelFormat.formatHasAlpha(params.format)) { 1305 params.format = PixelFormat.TRANSLUCENT; 1306 } 1307 } 1308 1309 if (mFitSystemWindowsRequested) { 1310 mFitSystemWindowsRequested = false; 1311 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1312 host.fitSystemWindows(mFitSystemWindowsInsets); 1313 if (mLayoutRequested) { 1314 // Short-circuit catching a new layout request here, so 1315 // we don't need to go through two layout passes when things 1316 // change due to fitting system windows, which can happen a lot. 1317 windowSizeMayChange |= measureHierarchy(host, lp, 1318 mView.getContext().getResources(), 1319 desiredWindowWidth, desiredWindowHeight); 1320 } 1321 } 1322 1323 if (layoutRequested) { 1324 // Clear this now, so that if anything requests a layout in the 1325 // rest of this function we will catch it and re-run a full 1326 // layout pass. 1327 mLayoutRequested = false; 1328 } 1329 1330 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1331 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1332 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1333 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1334 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1335 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1336 1337 final boolean computesInternalInsets = 1338 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1339 1340 boolean insetsPending = false; 1341 int relayoutResult = 0; 1342 1343 if (mFirst || windowShouldResize || insetsChanged || 1344 viewVisibilityChanged || params != null) { 1345 1346 if (viewVisibility == View.VISIBLE) { 1347 // If this window is giving internal insets to the window 1348 // manager, and it is being added or changing its visibility, 1349 // then we want to first give the window manager "fake" 1350 // insets to cause it to effectively ignore the content of 1351 // the window during layout. This avoids it briefly causing 1352 // other windows to resize/move based on the raw frame of the 1353 // window, waiting until we can finish laying out this window 1354 // and get back to the window manager with the ultimately 1355 // computed insets. 1356 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1357 } 1358 1359 if (mSurfaceHolder != null) { 1360 mSurfaceHolder.mSurfaceLock.lock(); 1361 mDrawingAllowed = true; 1362 } 1363 1364 boolean hwInitialized = false; 1365 boolean contentInsetsChanged = false; 1366 boolean visibleInsetsChanged; 1367 boolean hadSurface = mSurface.isValid(); 1368 1369 try { 1370 if (DEBUG_LAYOUT) { 1371 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1372 host.getMeasuredHeight() + ", params=" + params); 1373 } 1374 1375 final int surfaceGenerationId = mSurface.getGenerationId(); 1376 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1377 1378 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1379 + " content=" + mPendingContentInsets.toShortString() 1380 + " visible=" + mPendingVisibleInsets.toShortString() 1381 + " surface=" + mSurface); 1382 1383 if (mPendingConfiguration.seq != 0) { 1384 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1385 + mPendingConfiguration); 1386 updateConfiguration(mPendingConfiguration, !mFirst); 1387 mPendingConfiguration.seq = 0; 1388 } 1389 1390 contentInsetsChanged = !mPendingContentInsets.equals( 1391 mAttachInfo.mContentInsets); 1392 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1393 mAttachInfo.mVisibleInsets); 1394 if (contentInsetsChanged) { 1395 if (mWidth > 0 && mHeight > 0 && lp != null && 1396 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1397 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1398 mSurface != null && mSurface.isValid() && 1399 !mAttachInfo.mTurnOffWindowResizeAnim && 1400 mAttachInfo.mHardwareRenderer != null && 1401 mAttachInfo.mHardwareRenderer.isEnabled() && 1402 mAttachInfo.mHardwareRenderer.validate() && 1403 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1404 1405 disposeResizeBuffer(); 1406 1407 boolean completed = false; 1408 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1409 HardwareCanvas layerCanvas = null; 1410 try { 1411 if (mResizeBuffer == null) { 1412 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1413 mWidth, mHeight, false); 1414 } else if (mResizeBuffer.getWidth() != mWidth || 1415 mResizeBuffer.getHeight() != mHeight) { 1416 mResizeBuffer.resize(mWidth, mHeight); 1417 } 1418 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1419 layerCanvas.setViewport(mWidth, mHeight); 1420 layerCanvas.onPreDraw(null); 1421 final int restoreCount = layerCanvas.save(); 1422 1423 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1424 1425 int yoff; 1426 final boolean scrolling = mScroller != null 1427 && mScroller.computeScrollOffset(); 1428 if (scrolling) { 1429 yoff = mScroller.getCurrY(); 1430 mScroller.abortAnimation(); 1431 } else { 1432 yoff = mScrollY; 1433 } 1434 1435 layerCanvas.translate(0, -yoff); 1436 if (mTranslator != null) { 1437 mTranslator.translateCanvas(layerCanvas); 1438 } 1439 1440 mView.draw(layerCanvas); 1441 1442 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1443 1444 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1445 mResizeBufferDuration = mView.getResources().getInteger( 1446 com.android.internal.R.integer.config_mediumAnimTime); 1447 completed = true; 1448 1449 layerCanvas.restoreToCount(restoreCount); 1450 } catch (OutOfMemoryError e) { 1451 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1452 } finally { 1453 if (layerCanvas != null) { 1454 layerCanvas.onPostDraw(); 1455 } 1456 if (mResizeBuffer != null) { 1457 mResizeBuffer.end(hwRendererCanvas); 1458 if (!completed) { 1459 mResizeBuffer.destroy(); 1460 mResizeBuffer = null; 1461 } 1462 } 1463 } 1464 } 1465 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1466 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1467 + mAttachInfo.mContentInsets); 1468 } 1469 if (contentInsetsChanged || mLastSystemUiVisibility != 1470 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1471 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1472 mFitSystemWindowsRequested = false; 1473 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1474 host.fitSystemWindows(mFitSystemWindowsInsets); 1475 } 1476 if (visibleInsetsChanged) { 1477 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1478 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1479 + mAttachInfo.mVisibleInsets); 1480 } 1481 1482 if (!hadSurface) { 1483 if (mSurface.isValid()) { 1484 // If we are creating a new surface, then we need to 1485 // completely redraw it. Also, when we get to the 1486 // point of drawing it we will hold off and schedule 1487 // a new traversal instead. This is so we can tell the 1488 // window manager about all of the windows being displayed 1489 // before actually drawing them, so it can display then 1490 // all at once. 1491 newSurface = true; 1492 mFullRedrawNeeded = true; 1493 mPreviousTransparentRegion.setEmpty(); 1494 1495 if (mAttachInfo.mHardwareRenderer != null) { 1496 try { 1497 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1498 } catch (Surface.OutOfResourcesException e) { 1499 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1500 try { 1501 if (!sWindowSession.outOfMemory(mWindow)) { 1502 Slog.w(TAG, "No processes killed for memory; killing self"); 1503 Process.killProcess(Process.myPid()); 1504 } 1505 } catch (RemoteException ex) { 1506 } 1507 mLayoutRequested = true; // ask wm for a new surface next time. 1508 return; 1509 } 1510 } 1511 } 1512 } else if (!mSurface.isValid()) { 1513 // If the surface has been removed, then reset the scroll 1514 // positions. 1515 mLastScrolledFocus = null; 1516 mScrollY = mCurScrollY = 0; 1517 if (mScroller != null) { 1518 mScroller.abortAnimation(); 1519 } 1520 disposeResizeBuffer(); 1521 // Our surface is gone 1522 if (mAttachInfo.mHardwareRenderer != null && 1523 mAttachInfo.mHardwareRenderer.isEnabled()) { 1524 mAttachInfo.mHardwareRenderer.destroy(true); 1525 } 1526 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1527 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1528 mFullRedrawNeeded = true; 1529 try { 1530 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1531 } catch (Surface.OutOfResourcesException e) { 1532 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1533 try { 1534 if (!sWindowSession.outOfMemory(mWindow)) { 1535 Slog.w(TAG, "No processes killed for memory; killing self"); 1536 Process.killProcess(Process.myPid()); 1537 } 1538 } catch (RemoteException ex) { 1539 } 1540 mLayoutRequested = true; // ask wm for a new surface next time. 1541 return; 1542 } 1543 } 1544 } catch (RemoteException e) { 1545 } 1546 1547 if (DEBUG_ORIENTATION) Log.v( 1548 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1549 1550 attachInfo.mWindowLeft = frame.left; 1551 attachInfo.mWindowTop = frame.top; 1552 1553 // !!FIXME!! This next section handles the case where we did not get the 1554 // window size we asked for. We should avoid this by getting a maximum size from 1555 // the window session beforehand. 1556 mWidth = frame.width(); 1557 mHeight = frame.height(); 1558 1559 if (mSurfaceHolder != null) { 1560 // The app owns the surface; tell it about what is going on. 1561 if (mSurface.isValid()) { 1562 // XXX .copyFrom() doesn't work! 1563 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1564 mSurfaceHolder.mSurface = mSurface; 1565 } 1566 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1567 mSurfaceHolder.mSurfaceLock.unlock(); 1568 if (mSurface.isValid()) { 1569 if (!hadSurface) { 1570 mSurfaceHolder.ungetCallbacks(); 1571 1572 mIsCreating = true; 1573 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1574 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1575 if (callbacks != null) { 1576 for (SurfaceHolder.Callback c : callbacks) { 1577 c.surfaceCreated(mSurfaceHolder); 1578 } 1579 } 1580 surfaceChanged = true; 1581 } 1582 if (surfaceChanged) { 1583 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1584 lp.format, mWidth, mHeight); 1585 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1586 if (callbacks != null) { 1587 for (SurfaceHolder.Callback c : callbacks) { 1588 c.surfaceChanged(mSurfaceHolder, lp.format, 1589 mWidth, mHeight); 1590 } 1591 } 1592 } 1593 mIsCreating = false; 1594 } else if (hadSurface) { 1595 mSurfaceHolder.ungetCallbacks(); 1596 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1597 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1598 if (callbacks != null) { 1599 for (SurfaceHolder.Callback c : callbacks) { 1600 c.surfaceDestroyed(mSurfaceHolder); 1601 } 1602 } 1603 mSurfaceHolder.mSurfaceLock.lock(); 1604 try { 1605 mSurfaceHolder.mSurface = new Surface(); 1606 } finally { 1607 mSurfaceHolder.mSurfaceLock.unlock(); 1608 } 1609 } 1610 } 1611 1612 if (mAttachInfo.mHardwareRenderer != null && 1613 mAttachInfo.mHardwareRenderer.isEnabled()) { 1614 if (hwInitialized || windowShouldResize || 1615 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1616 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1617 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1618 if (!hwInitialized) { 1619 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1620 } 1621 } 1622 } 1623 1624 if (!mStopped) { 1625 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1626 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1627 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1628 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1629 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1630 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1631 1632 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1633 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1634 + " mHeight=" + mHeight 1635 + " measuredHeight=" + host.getMeasuredHeight() 1636 + " coveredInsetsChanged=" + contentInsetsChanged); 1637 1638 // Ask host how big it wants to be 1639 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1640 1641 // Implementation of weights from WindowManager.LayoutParams 1642 // We just grow the dimensions as needed and re-measure if 1643 // needs be 1644 int width = host.getMeasuredWidth(); 1645 int height = host.getMeasuredHeight(); 1646 boolean measureAgain = false; 1647 1648 if (lp.horizontalWeight > 0.0f) { 1649 width += (int) ((mWidth - width) * lp.horizontalWeight); 1650 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1651 MeasureSpec.EXACTLY); 1652 measureAgain = true; 1653 } 1654 if (lp.verticalWeight > 0.0f) { 1655 height += (int) ((mHeight - height) * lp.verticalWeight); 1656 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1657 MeasureSpec.EXACTLY); 1658 measureAgain = true; 1659 } 1660 1661 if (measureAgain) { 1662 if (DEBUG_LAYOUT) Log.v(TAG, 1663 "And hey let's measure once more: width=" + width 1664 + " height=" + height); 1665 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1666 } 1667 1668 layoutRequested = true; 1669 } 1670 } 1671 } 1672 1673 final boolean didLayout = layoutRequested && !mStopped; 1674 boolean triggerGlobalLayoutListener = didLayout 1675 || attachInfo.mRecomputeGlobalAttributes; 1676 if (didLayout) { 1677 mLayoutRequested = false; 1678 mScrollMayChange = true; 1679 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1680 TAG, "Laying out " + host + " to (" + 1681 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1682 long startTime = 0L; 1683 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1684 startTime = SystemClock.elapsedRealtime(); 1685 } 1686 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1687 1688 if (false && ViewDebug.consistencyCheckEnabled) { 1689 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1690 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1691 + "please refer to the logs with the tag " 1692 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1693 } 1694 } 1695 1696 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1697 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1698 } 1699 1700 // By this point all views have been sized and positionned 1701 // We can compute the transparent area 1702 1703 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1704 // start out transparent 1705 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1706 host.getLocationInWindow(mTmpLocation); 1707 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1708 mTmpLocation[0] + host.mRight - host.mLeft, 1709 mTmpLocation[1] + host.mBottom - host.mTop); 1710 1711 host.gatherTransparentRegion(mTransparentRegion); 1712 if (mTranslator != null) { 1713 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1714 } 1715 1716 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1717 mPreviousTransparentRegion.set(mTransparentRegion); 1718 // reconfigure window manager 1719 try { 1720 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1721 } catch (RemoteException e) { 1722 } 1723 } 1724 } 1725 1726 if (DBG) { 1727 System.out.println("======================================"); 1728 System.out.println("performTraversals -- after setFrame"); 1729 host.debug(); 1730 } 1731 } 1732 1733 if (triggerGlobalLayoutListener) { 1734 attachInfo.mRecomputeGlobalAttributes = false; 1735 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1736 1737 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1738 postSendWindowContentChangedCallback(mView); 1739 } 1740 } 1741 1742 if (computesInternalInsets) { 1743 // Clear the original insets. 1744 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1745 insets.reset(); 1746 1747 // Compute new insets in place. 1748 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1749 1750 // Tell the window manager. 1751 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1752 mLastGivenInsets.set(insets); 1753 1754 // Translate insets to screen coordinates if needed. 1755 final Rect contentInsets; 1756 final Rect visibleInsets; 1757 final Region touchableRegion; 1758 if (mTranslator != null) { 1759 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1760 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1761 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1762 } else { 1763 contentInsets = insets.contentInsets; 1764 visibleInsets = insets.visibleInsets; 1765 touchableRegion = insets.touchableRegion; 1766 } 1767 1768 try { 1769 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1770 contentInsets, visibleInsets, touchableRegion); 1771 } catch (RemoteException e) { 1772 } 1773 } 1774 } 1775 1776 boolean skipDraw = false; 1777 1778 if (mFirst) { 1779 // handle first focus request 1780 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1781 + mView.hasFocus()); 1782 if (mView != null) { 1783 if (!mView.hasFocus()) { 1784 mView.requestFocus(View.FOCUS_FORWARD); 1785 mFocusedView = mRealFocusedView = mView.findFocus(); 1786 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1787 + mFocusedView); 1788 } else { 1789 mRealFocusedView = mView.findFocus(); 1790 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1791 + mRealFocusedView); 1792 } 1793 } 1794 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1795 // The first time we relayout the window, if the system is 1796 // doing window animations, we want to hold of on any future 1797 // draws until the animation is done. 1798 mWindowsAnimating = true; 1799 } 1800 } else if (mWindowsAnimating) { 1801 skipDraw = true; 1802 } 1803 1804 mFirst = false; 1805 mWillDrawSoon = false; 1806 mNewSurfaceNeeded = false; 1807 mViewVisibility = viewVisibility; 1808 1809 if (mAttachInfo.mHasWindowFocus) { 1810 final boolean imTarget = WindowManager.LayoutParams 1811 .mayUseInputMethod(mWindowAttributes.flags); 1812 if (imTarget != mLastWasImTarget) { 1813 mLastWasImTarget = imTarget; 1814 InputMethodManager imm = InputMethodManager.peekInstance(); 1815 if (imm != null && imTarget) { 1816 imm.startGettingWindowFocus(mView); 1817 imm.onWindowFocus(mView, mView.findFocus(), 1818 mWindowAttributes.softInputMode, 1819 !mHasHadWindowFocus, mWindowAttributes.flags); 1820 } 1821 } 1822 } 1823 1824 // Remember if we must report the next draw. 1825 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1826 mReportNextDraw = true; 1827 } 1828 1829 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1830 viewVisibility != View.VISIBLE; 1831 1832 if (!cancelDraw && !newSurface) { 1833 if (!skipDraw || mReportNextDraw) { 1834 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1835 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1836 mPendingTransitions.get(i).startChangingAnimations(); 1837 } 1838 mPendingTransitions.clear(); 1839 } 1840 1841 performDraw(); 1842 } 1843 } else { 1844 // End any pending transitions on this non-visible window 1845 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1846 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1847 mPendingTransitions.get(i).endChangingAnimations(); 1848 } 1849 mPendingTransitions.clear(); 1850 } 1851 1852 if (viewVisibility == View.VISIBLE) { 1853 // Try again 1854 scheduleTraversals(); 1855 } 1856 } 1857 } 1858 1859 public void requestTransparentRegion(View child) { 1860 // the test below should not fail unless someone is messing with us 1861 checkThread(); 1862 if (mView == child) { 1863 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1864 // Need to make sure we re-evaluate the window attributes next 1865 // time around, to ensure the window has the correct format. 1866 mWindowAttributesChanged = true; 1867 mWindowAttributesChangesFlag = 0; 1868 requestLayout(); 1869 } 1870 } 1871 1872 /** 1873 * Figures out the measure spec for the root view in a window based on it's 1874 * layout params. 1875 * 1876 * @param windowSize 1877 * The available width or height of the window 1878 * 1879 * @param rootDimension 1880 * The layout params for one dimension (width or height) of the 1881 * window. 1882 * 1883 * @return The measure spec to use to measure the root view. 1884 */ 1885 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1886 int measureSpec; 1887 switch (rootDimension) { 1888 1889 case ViewGroup.LayoutParams.MATCH_PARENT: 1890 // Window can't resize. Force root view to be windowSize. 1891 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1892 break; 1893 case ViewGroup.LayoutParams.WRAP_CONTENT: 1894 // Window can resize. Set max size for root view. 1895 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1896 break; 1897 default: 1898 // Window wants to be an exact size. Force root view to be that size. 1899 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1900 break; 1901 } 1902 return measureSpec; 1903 } 1904 1905 int mHardwareYOffset; 1906 int mResizeAlpha; 1907 final Paint mResizePaint = new Paint(); 1908 1909 public void onHardwarePreDraw(HardwareCanvas canvas) { 1910 canvas.translate(0, -mHardwareYOffset); 1911 } 1912 1913 public void onHardwarePostDraw(HardwareCanvas canvas) { 1914 if (mResizeBuffer != null) { 1915 mResizePaint.setAlpha(mResizeAlpha); 1916 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1917 } 1918 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1919 } 1920 1921 /** 1922 * @hide 1923 */ 1924 void outputDisplayList(View view) { 1925 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1926 DisplayList displayList = view.getDisplayList(); 1927 if (displayList != null) { 1928 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1929 } 1930 } 1931 } 1932 1933 /** 1934 * @see #PROPERTY_PROFILE_RENDERING 1935 */ 1936 private void profileRendering(boolean enabled) { 1937 if (mProfileRendering) { 1938 mRenderProfilingEnabled = enabled; 1939 if (mRenderProfiler == null) { 1940 mRenderProfiler = new Thread(new Runnable() { 1941 @Override 1942 public void run() { 1943 Log.d(TAG, "Starting profiling thread"); 1944 while (mRenderProfilingEnabled) { 1945 mAttachInfo.mHandler.post(new Runnable() { 1946 @Override 1947 public void run() { 1948 mDirty.set(0, 0, mWidth, mHeight); 1949 scheduleTraversals(); 1950 } 1951 }); 1952 try { 1953 // TODO: This should use vsync when we get an API 1954 Thread.sleep(15); 1955 } catch (InterruptedException e) { 1956 Log.d(TAG, "Exiting profiling thread"); 1957 } 1958 } 1959 } 1960 }, "Rendering Profiler"); 1961 mRenderProfiler.start(); 1962 } else { 1963 mRenderProfiler.interrupt(); 1964 mRenderProfiler = null; 1965 } 1966 } 1967 } 1968 1969 /** 1970 * Called from draw() when DEBUG_FPS is enabled 1971 */ 1972 private void trackFPS() { 1973 // Tracks frames per second drawn. First value in a series of draws may be bogus 1974 // because it down not account for the intervening idle time 1975 long nowTime = System.currentTimeMillis(); 1976 if (mFpsStartTime < 0) { 1977 mFpsStartTime = mFpsPrevTime = nowTime; 1978 mFpsNumFrames = 0; 1979 } else { 1980 ++mFpsNumFrames; 1981 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1982 long frameTime = nowTime - mFpsPrevTime; 1983 long totalTime = nowTime - mFpsStartTime; 1984 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1985 mFpsPrevTime = nowTime; 1986 if (totalTime > 1000) { 1987 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1988 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1989 mFpsStartTime = nowTime; 1990 mFpsNumFrames = 0; 1991 } 1992 } 1993 } 1994 1995 private void performDraw() { 1996 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 1997 return; 1998 } 1999 2000 final long drawStartTime; 2001 if (ViewDebug.DEBUG_LATENCY) { 2002 drawStartTime = System.nanoTime(); 2003 if (mLastDrawFinishedTimeNanos != 0) { 2004 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 2005 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 2006 + "ms since the last draw finished."); 2007 } else { 2008 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 2009 } 2010 } 2011 2012 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2013 mFullRedrawNeeded = false; 2014 2015 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2016 try { 2017 draw(fullRedrawNeeded); 2018 } finally { 2019 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2020 } 2021 2022 if (ViewDebug.DEBUG_LATENCY) { 2023 long now = System.nanoTime(); 2024 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 2025 + ((now - drawStartTime) * 0.000001f) 2026 + "ms."); 2027 mLastDrawFinishedTimeNanos = now; 2028 } 2029 2030 if (mReportNextDraw) { 2031 mReportNextDraw = false; 2032 2033 if (LOCAL_LOGV) { 2034 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2035 } 2036 if (mSurfaceHolder != null && mSurface.isValid()) { 2037 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2038 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2039 if (callbacks != null) { 2040 for (SurfaceHolder.Callback c : callbacks) { 2041 if (c instanceof SurfaceHolder.Callback2) { 2042 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2043 mSurfaceHolder); 2044 } 2045 } 2046 } 2047 } 2048 try { 2049 sWindowSession.finishDrawing(mWindow); 2050 } catch (RemoteException e) { 2051 } 2052 } 2053 } 2054 2055 private void draw(boolean fullRedrawNeeded) { 2056 Surface surface = mSurface; 2057 if (surface == null || !surface.isValid()) { 2058 return; 2059 } 2060 2061 if (DEBUG_FPS) { 2062 trackFPS(); 2063 } 2064 2065 if (!sFirstDrawComplete) { 2066 synchronized (sFirstDrawHandlers) { 2067 sFirstDrawComplete = true; 2068 final int count = sFirstDrawHandlers.size(); 2069 for (int i = 0; i< count; i++) { 2070 mHandler.post(sFirstDrawHandlers.get(i)); 2071 } 2072 } 2073 } 2074 2075 scrollToRectOrFocus(null, false); 2076 2077 final AttachInfo attachInfo = mAttachInfo; 2078 if (attachInfo.mViewScrollChanged) { 2079 attachInfo.mViewScrollChanged = false; 2080 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2081 } 2082 2083 int yoff; 2084 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2085 if (animating) { 2086 yoff = mScroller.getCurrY(); 2087 } else { 2088 yoff = mScrollY; 2089 } 2090 if (mCurScrollY != yoff) { 2091 mCurScrollY = yoff; 2092 fullRedrawNeeded = true; 2093 } 2094 2095 final float appScale = attachInfo.mApplicationScale; 2096 final boolean scalingRequired = attachInfo.mScalingRequired; 2097 2098 int resizeAlpha = 0; 2099 if (mResizeBuffer != null) { 2100 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2101 if (deltaTime < mResizeBufferDuration) { 2102 float amt = deltaTime/(float) mResizeBufferDuration; 2103 amt = mResizeInterpolator.getInterpolation(amt); 2104 animating = true; 2105 resizeAlpha = 255 - (int)(amt*255); 2106 } else { 2107 disposeResizeBuffer(); 2108 } 2109 } 2110 2111 final Rect dirty = mDirty; 2112 if (mSurfaceHolder != null) { 2113 // The app owns the surface, we won't draw. 2114 dirty.setEmpty(); 2115 if (animating) { 2116 if (mScroller != null) { 2117 mScroller.abortAnimation(); 2118 } 2119 disposeResizeBuffer(); 2120 } 2121 return; 2122 } 2123 2124 if (fullRedrawNeeded) { 2125 attachInfo.mIgnoreDirtyState = true; 2126 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2127 } 2128 2129 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2130 Log.v(TAG, "Draw " + mView + "/" 2131 + mWindowAttributes.getTitle() 2132 + ": dirty={" + dirty.left + "," + dirty.top 2133 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2134 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2135 appScale + ", width=" + mWidth + ", height=" + mHeight); 2136 } 2137 2138 attachInfo.mTreeObserver.dispatchOnDraw(); 2139 2140 if (!dirty.isEmpty() || mIsAnimating) { 2141 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2142 // Draw with hardware renderer. 2143 mIsAnimating = false; 2144 mHardwareYOffset = yoff; 2145 mResizeAlpha = resizeAlpha; 2146 2147 mCurrentDirty.set(dirty); 2148 mCurrentDirty.union(mPreviousDirty); 2149 mPreviousDirty.set(dirty); 2150 dirty.setEmpty(); 2151 2152 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2153 animating ? null : mCurrentDirty)) { 2154 mPreviousDirty.set(0, 0, mWidth, mHeight); 2155 } 2156 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2157 return; 2158 } 2159 } 2160 2161 if (animating) { 2162 mFullRedrawNeeded = true; 2163 scheduleTraversals(); 2164 } 2165 } 2166 2167 /** 2168 * @return true if drawing was succesfull, false if an error occurred 2169 */ 2170 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2171 boolean scalingRequired, Rect dirty) { 2172 2173 // Draw with software renderer. 2174 Canvas canvas; 2175 try { 2176 int left = dirty.left; 2177 int top = dirty.top; 2178 int right = dirty.right; 2179 int bottom = dirty.bottom; 2180 2181 final long lockCanvasStartTime; 2182 if (ViewDebug.DEBUG_LATENCY) { 2183 lockCanvasStartTime = System.nanoTime(); 2184 } 2185 2186 canvas = mSurface.lockCanvas(dirty); 2187 2188 if (ViewDebug.DEBUG_LATENCY) { 2189 long now = System.nanoTime(); 2190 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2191 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2192 } 2193 2194 if (left != dirty.left || top != dirty.top || right != dirty.right || 2195 bottom != dirty.bottom) { 2196 attachInfo.mIgnoreDirtyState = true; 2197 } 2198 2199 // TODO: Do this in native 2200 canvas.setDensity(mDensity); 2201 } catch (Surface.OutOfResourcesException e) { 2202 Log.e(TAG, "OutOfResourcesException locking surface", e); 2203 try { 2204 if (!sWindowSession.outOfMemory(mWindow)) { 2205 Slog.w(TAG, "No processes killed for memory; killing self"); 2206 Process.killProcess(Process.myPid()); 2207 } 2208 } catch (RemoteException ex) { 2209 } 2210 mLayoutRequested = true; // ask wm for a new surface next time. 2211 return false; 2212 } catch (IllegalArgumentException e) { 2213 Log.e(TAG, "IllegalArgumentException locking surface", e); 2214 // Don't assume this is due to out of memory, it could be 2215 // something else, and if it is something else then we could 2216 // kill stuff (or ourself) for no reason. 2217 mLayoutRequested = true; // ask wm for a new surface next time. 2218 return false; 2219 } 2220 2221 try { 2222 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2223 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2224 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2225 //canvas.drawARGB(255, 255, 0, 0); 2226 } 2227 2228 long startTime = 0L; 2229 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2230 startTime = SystemClock.elapsedRealtime(); 2231 } 2232 2233 // If this bitmap's format includes an alpha channel, we 2234 // need to clear it before drawing so that the child will 2235 // properly re-composite its drawing on a transparent 2236 // background. This automatically respects the clip/dirty region 2237 // or 2238 // If we are applying an offset, we need to clear the area 2239 // where the offset doesn't appear to avoid having garbage 2240 // left in the blank areas. 2241 if (!canvas.isOpaque() || yoff != 0) { 2242 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2243 } 2244 2245 dirty.setEmpty(); 2246 mIsAnimating = false; 2247 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2248 mView.mPrivateFlags |= View.DRAWN; 2249 2250 if (DEBUG_DRAW) { 2251 Context cxt = mView.getContext(); 2252 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2253 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2254 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2255 } 2256 try { 2257 canvas.translate(0, -yoff); 2258 if (mTranslator != null) { 2259 mTranslator.translateCanvas(canvas); 2260 } 2261 canvas.setScreenDensity(scalingRequired 2262 ? DisplayMetrics.DENSITY_DEVICE : 0); 2263 attachInfo.mSetIgnoreDirtyState = false; 2264 2265 final long drawStartTime; 2266 if (ViewDebug.DEBUG_LATENCY) { 2267 drawStartTime = System.nanoTime(); 2268 } 2269 2270 mView.draw(canvas); 2271 2272 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2273 2274 if (ViewDebug.DEBUG_LATENCY) { 2275 long now = System.nanoTime(); 2276 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2277 + ((now - drawStartTime) * 0.000001f) + "ms"); 2278 } 2279 } finally { 2280 if (!attachInfo.mSetIgnoreDirtyState) { 2281 // Only clear the flag if it was not set during the mView.draw() call 2282 attachInfo.mIgnoreDirtyState = false; 2283 } 2284 } 2285 2286 if (false && ViewDebug.consistencyCheckEnabled) { 2287 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2288 } 2289 2290 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2291 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2292 } 2293 } finally { 2294 final long unlockCanvasAndPostStartTime; 2295 if (ViewDebug.DEBUG_LATENCY) { 2296 unlockCanvasAndPostStartTime = System.nanoTime(); 2297 } 2298 2299 surface.unlockCanvasAndPost(canvas); 2300 2301 if (ViewDebug.DEBUG_LATENCY) { 2302 long now = System.nanoTime(); 2303 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2304 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2305 } 2306 2307 if (LOCAL_LOGV) { 2308 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2309 } 2310 } 2311 return true; 2312 } 2313 2314 /** 2315 * We want to draw a highlight around the current accessibility focused. 2316 * Since adding a style for all possible view is not a viable option we 2317 * have this specialized drawing method. 2318 * 2319 * Note: We are doing this here to be able to draw the highlight for 2320 * virtual views in addition to real ones. 2321 * 2322 * @param canvas The canvas on which to draw. 2323 */ 2324 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2325 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2326 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2327 return; 2328 } 2329 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2330 return; 2331 } 2332 Drawable drawable = getAccessibilityFocusedDrawable(); 2333 if (drawable == null) { 2334 return; 2335 } 2336 AccessibilityNodeProvider provider = 2337 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2338 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2339 if (provider == null) { 2340 mAccessibilityFocusedHost.getDrawingRect(bounds); 2341 if (mView instanceof ViewGroup) { 2342 ViewGroup viewGroup = (ViewGroup) mView; 2343 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2344 } 2345 } else { 2346 if (mAccessibilityFocusedVirtualView == null) { 2347 mAccessibilityFocusedVirtualView = provider.findAccessibilitiyFocus(View.NO_ID); 2348 } 2349 if (mAccessibilityFocusedVirtualView == null) { 2350 return; 2351 } 2352 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2353 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2354 } 2355 drawable.setBounds(bounds); 2356 drawable.draw(canvas); 2357 } 2358 2359 private Drawable getAccessibilityFocusedDrawable() { 2360 if (mAttachInfo != null) { 2361 // Lazily load the accessibility focus drawable. 2362 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2363 TypedValue value = new TypedValue(); 2364 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2365 R.attr.accessibilityFocusedDrawable, value, true); 2366 if (resolved) { 2367 mAttachInfo.mAccessibilityFocusDrawable = 2368 mView.mContext.getResources().getDrawable(value.resourceId); 2369 } 2370 } 2371 return mAttachInfo.mAccessibilityFocusDrawable; 2372 } 2373 return null; 2374 } 2375 2376 void invalidateDisplayLists() { 2377 final ArrayList<DisplayList> displayLists = mDisplayLists; 2378 final int count = displayLists.size(); 2379 2380 for (int i = 0; i < count; i++) { 2381 displayLists.get(i).invalidate(); 2382 } 2383 2384 displayLists.clear(); 2385 } 2386 2387 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2388 final View.AttachInfo attachInfo = mAttachInfo; 2389 final Rect ci = attachInfo.mContentInsets; 2390 final Rect vi = attachInfo.mVisibleInsets; 2391 int scrollY = 0; 2392 boolean handled = false; 2393 2394 if (vi.left > ci.left || vi.top > ci.top 2395 || vi.right > ci.right || vi.bottom > ci.bottom) { 2396 // We'll assume that we aren't going to change the scroll 2397 // offset, since we want to avoid that unless it is actually 2398 // going to make the focus visible... otherwise we scroll 2399 // all over the place. 2400 scrollY = mScrollY; 2401 // We can be called for two different situations: during a draw, 2402 // to update the scroll position if the focus has changed (in which 2403 // case 'rectangle' is null), or in response to a 2404 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2405 // is non-null and we just want to scroll to whatever that 2406 // rectangle is). 2407 View focus = mRealFocusedView; 2408 2409 // When in touch mode, focus points to the previously focused view, 2410 // which may have been removed from the view hierarchy. The following 2411 // line checks whether the view is still in our hierarchy. 2412 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2413 mRealFocusedView = null; 2414 return false; 2415 } 2416 2417 if (focus != mLastScrolledFocus) { 2418 // If the focus has changed, then ignore any requests to scroll 2419 // to a rectangle; first we want to make sure the entire focus 2420 // view is visible. 2421 rectangle = null; 2422 } 2423 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2424 + " rectangle=" + rectangle + " ci=" + ci 2425 + " vi=" + vi); 2426 if (focus == mLastScrolledFocus && !mScrollMayChange 2427 && rectangle == null) { 2428 // Optimization: if the focus hasn't changed since last 2429 // time, and no layout has happened, then just leave things 2430 // as they are. 2431 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2432 + mScrollY + " vi=" + vi.toShortString()); 2433 } else if (focus != null) { 2434 // We need to determine if the currently focused view is 2435 // within the visible part of the window and, if not, apply 2436 // a pan so it can be seen. 2437 mLastScrolledFocus = focus; 2438 mScrollMayChange = false; 2439 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2440 // Try to find the rectangle from the focus view. 2441 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2442 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2443 + mView.getWidth() + " h=" + mView.getHeight() 2444 + " ci=" + ci.toShortString() 2445 + " vi=" + vi.toShortString()); 2446 if (rectangle == null) { 2447 focus.getFocusedRect(mTempRect); 2448 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2449 + ": focusRect=" + mTempRect.toShortString()); 2450 if (mView instanceof ViewGroup) { 2451 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2452 focus, mTempRect); 2453 } 2454 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2455 "Focus in window: focusRect=" 2456 + mTempRect.toShortString() 2457 + " visRect=" + mVisRect.toShortString()); 2458 } else { 2459 mTempRect.set(rectangle); 2460 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2461 "Request scroll to rect: " 2462 + mTempRect.toShortString() 2463 + " visRect=" + mVisRect.toShortString()); 2464 } 2465 if (mTempRect.intersect(mVisRect)) { 2466 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2467 "Focus window visible rect: " 2468 + mTempRect.toShortString()); 2469 if (mTempRect.height() > 2470 (mView.getHeight()-vi.top-vi.bottom)) { 2471 // If the focus simply is not going to fit, then 2472 // best is probably just to leave things as-is. 2473 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2474 "Too tall; leaving scrollY=" + scrollY); 2475 } else if ((mTempRect.top-scrollY) < vi.top) { 2476 scrollY -= vi.top - (mTempRect.top-scrollY); 2477 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2478 "Top covered; scrollY=" + scrollY); 2479 } else if ((mTempRect.bottom-scrollY) 2480 > (mView.getHeight()-vi.bottom)) { 2481 scrollY += (mTempRect.bottom-scrollY) 2482 - (mView.getHeight()-vi.bottom); 2483 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2484 "Bottom covered; scrollY=" + scrollY); 2485 } 2486 handled = true; 2487 } 2488 } 2489 } 2490 } 2491 2492 if (scrollY != mScrollY) { 2493 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2494 + mScrollY + " , new=" + scrollY); 2495 if (!immediate && mResizeBuffer == null) { 2496 if (mScroller == null) { 2497 mScroller = new Scroller(mView.getContext()); 2498 } 2499 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2500 } else if (mScroller != null) { 2501 mScroller.abortAnimation(); 2502 } 2503 mScrollY = scrollY; 2504 } 2505 2506 return handled; 2507 } 2508 2509 void setAccessibilityFocusedHost(View host) { 2510 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView == null) { 2511 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2512 } 2513 mAccessibilityFocusedHost = host; 2514 mAccessibilityFocusedVirtualView = null; 2515 } 2516 2517 public void requestChildFocus(View child, View focused) { 2518 checkThread(); 2519 2520 if (DEBUG_INPUT_RESIZE) { 2521 Log.v(TAG, "Request child focus: focus now " + focused); 2522 } 2523 2524 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2525 scheduleTraversals(); 2526 2527 mFocusedView = mRealFocusedView = focused; 2528 } 2529 2530 public void clearChildFocus(View child) { 2531 checkThread(); 2532 2533 if (DEBUG_INPUT_RESIZE) { 2534 Log.v(TAG, "Clearing child focus"); 2535 } 2536 2537 mOldFocusedView = mFocusedView; 2538 2539 // Invoke the listener only if there is no view to take focus 2540 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2541 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2542 } 2543 2544 mFocusedView = mRealFocusedView = null; 2545 } 2546 2547 @Override 2548 public ViewParent getParentForAccessibility() { 2549 return null; 2550 } 2551 2552 public void focusableViewAvailable(View v) { 2553 checkThread(); 2554 if (mView != null) { 2555 if (!mView.hasFocus()) { 2556 v.requestFocus(); 2557 } else { 2558 // the one case where will transfer focus away from the current one 2559 // is if the current view is a view group that prefers to give focus 2560 // to its children first AND the view is a descendant of it. 2561 mFocusedView = mView.findFocus(); 2562 boolean descendantsHaveDibsOnFocus = 2563 (mFocusedView instanceof ViewGroup) && 2564 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2565 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2566 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2567 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2568 v.requestFocus(); 2569 } 2570 } 2571 } 2572 } 2573 2574 public void recomputeViewAttributes(View child) { 2575 checkThread(); 2576 if (mView == child) { 2577 mAttachInfo.mRecomputeGlobalAttributes = true; 2578 if (!mWillDrawSoon) { 2579 scheduleTraversals(); 2580 } 2581 } 2582 } 2583 2584 void dispatchDetachedFromWindow() { 2585 if (mView != null && mView.mAttachInfo != null) { 2586 if (mAttachInfo.mHardwareRenderer != null && 2587 mAttachInfo.mHardwareRenderer.isEnabled()) { 2588 mAttachInfo.mHardwareRenderer.validate(); 2589 } 2590 mView.dispatchDetachedFromWindow(); 2591 } 2592 2593 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2594 mAccessibilityManager.removeAccessibilityStateChangeListener( 2595 mAccessibilityInteractionConnectionManager); 2596 removeSendWindowContentChangedCallback(); 2597 2598 destroyHardwareRenderer(); 2599 2600 mView = null; 2601 mAttachInfo.mRootView = null; 2602 mAttachInfo.mSurface = null; 2603 2604 mSurface.release(); 2605 2606 if (mInputQueueCallback != null && mInputQueue != null) { 2607 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2608 mInputQueueCallback = null; 2609 mInputQueue = null; 2610 } else if (mInputEventReceiver != null) { 2611 mInputEventReceiver.dispose(); 2612 mInputEventReceiver = null; 2613 } 2614 try { 2615 sWindowSession.remove(mWindow); 2616 } catch (RemoteException e) { 2617 } 2618 2619 // Dispose the input channel after removing the window so the Window Manager 2620 // doesn't interpret the input channel being closed as an abnormal termination. 2621 if (mInputChannel != null) { 2622 mInputChannel.dispose(); 2623 mInputChannel = null; 2624 } 2625 2626 unscheduleTraversals(); 2627 } 2628 2629 void updateConfiguration(Configuration config, boolean force) { 2630 if (DEBUG_CONFIGURATION) Log.v(TAG, 2631 "Applying new config to window " 2632 + mWindowAttributes.getTitle() 2633 + ": " + config); 2634 2635 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2636 if (ci != null) { 2637 config = new Configuration(config); 2638 ci.applyToConfiguration(config); 2639 } 2640 2641 synchronized (sConfigCallbacks) { 2642 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2643 sConfigCallbacks.get(i).onConfigurationChanged(config); 2644 } 2645 } 2646 if (mView != null) { 2647 // At this point the resources have been updated to 2648 // have the most recent config, whatever that is. Use 2649 // the on in them which may be newer. 2650 config = mView.getResources().getConfiguration(); 2651 if (force || mLastConfiguration.diff(config) != 0) { 2652 mLastConfiguration.setTo(config); 2653 mView.dispatchConfigurationChanged(config); 2654 } 2655 } 2656 } 2657 2658 /** 2659 * Return true if child is an ancestor of parent, (or equal to the parent). 2660 */ 2661 static boolean isViewDescendantOf(View child, View parent) { 2662 if (child == parent) { 2663 return true; 2664 } 2665 2666 final ViewParent theParent = child.getParent(); 2667 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2668 } 2669 2670 private static void forceLayout(View view) { 2671 view.forceLayout(); 2672 if (view instanceof ViewGroup) { 2673 ViewGroup group = (ViewGroup) view; 2674 final int count = group.getChildCount(); 2675 for (int i = 0; i < count; i++) { 2676 forceLayout(group.getChildAt(i)); 2677 } 2678 } 2679 } 2680 2681 private final static int MSG_INVALIDATE = 1; 2682 private final static int MSG_INVALIDATE_RECT = 2; 2683 private final static int MSG_DIE = 3; 2684 private final static int MSG_RESIZED = 4; 2685 private final static int MSG_RESIZED_REPORT = 5; 2686 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2687 private final static int MSG_DISPATCH_KEY = 7; 2688 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2689 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2690 private final static int MSG_IME_FINISHED_EVENT = 10; 2691 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2692 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2693 private final static int MSG_CHECK_FOCUS = 13; 2694 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2695 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2696 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2697 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2698 private final static int MSG_UPDATE_CONFIGURATION = 18; 2699 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2700 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2701 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2702 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2703 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2704 2705 final class ViewRootHandler extends Handler { 2706 @Override 2707 public String getMessageName(Message message) { 2708 switch (message.what) { 2709 case MSG_INVALIDATE: 2710 return "MSG_INVALIDATE"; 2711 case MSG_INVALIDATE_RECT: 2712 return "MSG_INVALIDATE_RECT"; 2713 case MSG_DIE: 2714 return "MSG_DIE"; 2715 case MSG_RESIZED: 2716 return "MSG_RESIZED"; 2717 case MSG_RESIZED_REPORT: 2718 return "MSG_RESIZED_REPORT"; 2719 case MSG_WINDOW_FOCUS_CHANGED: 2720 return "MSG_WINDOW_FOCUS_CHANGED"; 2721 case MSG_DISPATCH_KEY: 2722 return "MSG_DISPATCH_KEY"; 2723 case MSG_DISPATCH_APP_VISIBILITY: 2724 return "MSG_DISPATCH_APP_VISIBILITY"; 2725 case MSG_DISPATCH_GET_NEW_SURFACE: 2726 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2727 case MSG_IME_FINISHED_EVENT: 2728 return "MSG_IME_FINISHED_EVENT"; 2729 case MSG_DISPATCH_KEY_FROM_IME: 2730 return "MSG_DISPATCH_KEY_FROM_IME"; 2731 case MSG_FINISH_INPUT_CONNECTION: 2732 return "MSG_FINISH_INPUT_CONNECTION"; 2733 case MSG_CHECK_FOCUS: 2734 return "MSG_CHECK_FOCUS"; 2735 case MSG_CLOSE_SYSTEM_DIALOGS: 2736 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2737 case MSG_DISPATCH_DRAG_EVENT: 2738 return "MSG_DISPATCH_DRAG_EVENT"; 2739 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2740 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2741 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2742 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2743 case MSG_UPDATE_CONFIGURATION: 2744 return "MSG_UPDATE_CONFIGURATION"; 2745 case MSG_PROCESS_INPUT_EVENTS: 2746 return "MSG_PROCESS_INPUT_EVENTS"; 2747 case MSG_DISPATCH_SCREEN_STATE: 2748 return "MSG_DISPATCH_SCREEN_STATE"; 2749 case MSG_INVALIDATE_DISPLAY_LIST: 2750 return "MSG_INVALIDATE_DISPLAY_LIST"; 2751 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2752 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2753 case MSG_DISPATCH_DONE_ANIMATING: 2754 return "MSG_DISPATCH_DONE_ANIMATING"; 2755 } 2756 return super.getMessageName(message); 2757 } 2758 2759 @Override 2760 public void handleMessage(Message msg) { 2761 switch (msg.what) { 2762 case MSG_INVALIDATE: 2763 ((View) msg.obj).invalidate(); 2764 break; 2765 case MSG_INVALIDATE_RECT: 2766 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2767 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2768 info.release(); 2769 break; 2770 case MSG_IME_FINISHED_EVENT: 2771 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2772 break; 2773 case MSG_PROCESS_INPUT_EVENTS: 2774 mProcessInputEventsScheduled = false; 2775 doProcessInputEvents(); 2776 break; 2777 case MSG_DISPATCH_APP_VISIBILITY: 2778 handleAppVisibility(msg.arg1 != 0); 2779 break; 2780 case MSG_DISPATCH_GET_NEW_SURFACE: 2781 handleGetNewSurface(); 2782 break; 2783 case MSG_RESIZED: 2784 ResizedInfo ri = (ResizedInfo)msg.obj; 2785 2786 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2787 && mPendingContentInsets.equals(ri.coveredInsets) 2788 && mPendingVisibleInsets.equals(ri.visibleInsets) 2789 && ((ResizedInfo)msg.obj).newConfig == null) { 2790 break; 2791 } 2792 // fall through... 2793 case MSG_RESIZED_REPORT: 2794 if (mAdded) { 2795 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2796 if (config != null) { 2797 updateConfiguration(config, false); 2798 } 2799 mWinFrame.left = 0; 2800 mWinFrame.right = msg.arg1; 2801 mWinFrame.top = 0; 2802 mWinFrame.bottom = msg.arg2; 2803 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2804 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2805 if (msg.what == MSG_RESIZED_REPORT) { 2806 mReportNextDraw = true; 2807 } 2808 2809 if (mView != null) { 2810 forceLayout(mView); 2811 } 2812 requestLayout(); 2813 } 2814 break; 2815 case MSG_WINDOW_FOCUS_CHANGED: { 2816 if (mAdded) { 2817 boolean hasWindowFocus = msg.arg1 != 0; 2818 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2819 2820 profileRendering(hasWindowFocus); 2821 2822 if (hasWindowFocus) { 2823 boolean inTouchMode = msg.arg2 != 0; 2824 ensureTouchModeLocally(inTouchMode); 2825 2826 if (mAttachInfo.mHardwareRenderer != null && 2827 mSurface != null && mSurface.isValid()) { 2828 mFullRedrawNeeded = true; 2829 try { 2830 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2831 mHolder); 2832 } catch (Surface.OutOfResourcesException e) { 2833 Log.e(TAG, "OutOfResourcesException locking surface", e); 2834 try { 2835 if (!sWindowSession.outOfMemory(mWindow)) { 2836 Slog.w(TAG, "No processes killed for memory; killing self"); 2837 Process.killProcess(Process.myPid()); 2838 } 2839 } catch (RemoteException ex) { 2840 } 2841 // Retry in a bit. 2842 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2843 return; 2844 } 2845 } 2846 } 2847 2848 mLastWasImTarget = WindowManager.LayoutParams 2849 .mayUseInputMethod(mWindowAttributes.flags); 2850 2851 InputMethodManager imm = InputMethodManager.peekInstance(); 2852 if (mView != null) { 2853 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2854 imm.startGettingWindowFocus(mView); 2855 } 2856 mAttachInfo.mKeyDispatchState.reset(); 2857 mView.dispatchWindowFocusChanged(hasWindowFocus); 2858 } 2859 2860 // Note: must be done after the focus change callbacks, 2861 // so all of the view state is set up correctly. 2862 if (hasWindowFocus) { 2863 if (imm != null && mLastWasImTarget) { 2864 imm.onWindowFocus(mView, mView.findFocus(), 2865 mWindowAttributes.softInputMode, 2866 !mHasHadWindowFocus, mWindowAttributes.flags); 2867 } 2868 // Clear the forward bit. We can just do this directly, since 2869 // the window manager doesn't care about it. 2870 mWindowAttributes.softInputMode &= 2871 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2872 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2873 .softInputMode &= 2874 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2875 mHasHadWindowFocus = true; 2876 } 2877 2878 setAccessibilityFocusedHost(null); 2879 2880 if (mView != null && mAccessibilityManager.isEnabled()) { 2881 if (hasWindowFocus) { 2882 mView.sendAccessibilityEvent( 2883 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2884 // Give accessibility focus to the view that has input 2885 // focus if such, otherwise to the first one. 2886 if (mView instanceof ViewGroup) { 2887 ViewGroup viewGroup = (ViewGroup) mView; 2888 View focused = viewGroup.findFocus(); 2889 if (focused != null) { 2890 focused.requestAccessibilityFocus(); 2891 } 2892 } 2893 // There is no accessibility focus, despite our effort 2894 // above, now just give it to the first view. 2895 if (mAccessibilityFocusedHost == null) { 2896 mView.requestAccessibilityFocus(); 2897 } 2898 } 2899 } 2900 } 2901 } break; 2902 case MSG_DIE: 2903 doDie(); 2904 break; 2905 case MSG_DISPATCH_KEY: { 2906 KeyEvent event = (KeyEvent)msg.obj; 2907 enqueueInputEvent(event, null, 0, true); 2908 } break; 2909 case MSG_DISPATCH_KEY_FROM_IME: { 2910 if (LOCAL_LOGV) Log.v( 2911 TAG, "Dispatching key " 2912 + msg.obj + " from IME to " + mView); 2913 KeyEvent event = (KeyEvent)msg.obj; 2914 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2915 // The IME is trying to say this event is from the 2916 // system! Bad bad bad! 2917 //noinspection UnusedAssignment 2918 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2919 } 2920 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2921 } break; 2922 case MSG_FINISH_INPUT_CONNECTION: { 2923 InputMethodManager imm = InputMethodManager.peekInstance(); 2924 if (imm != null) { 2925 imm.reportFinishInputConnection((InputConnection)msg.obj); 2926 } 2927 } break; 2928 case MSG_CHECK_FOCUS: { 2929 InputMethodManager imm = InputMethodManager.peekInstance(); 2930 if (imm != null) { 2931 imm.checkFocus(); 2932 } 2933 } break; 2934 case MSG_CLOSE_SYSTEM_DIALOGS: { 2935 if (mView != null) { 2936 mView.onCloseSystemDialogs((String)msg.obj); 2937 } 2938 } break; 2939 case MSG_DISPATCH_DRAG_EVENT: 2940 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2941 DragEvent event = (DragEvent)msg.obj; 2942 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2943 handleDragEvent(event); 2944 } break; 2945 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2946 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2947 } break; 2948 case MSG_UPDATE_CONFIGURATION: { 2949 Configuration config = (Configuration)msg.obj; 2950 if (config.isOtherSeqNewer(mLastConfiguration)) { 2951 config = mLastConfiguration; 2952 } 2953 updateConfiguration(config, false); 2954 } break; 2955 case MSG_DISPATCH_SCREEN_STATE: { 2956 if (mView != null) { 2957 handleScreenStateChange(msg.arg1 == 1); 2958 } 2959 } break; 2960 case MSG_INVALIDATE_DISPLAY_LIST: { 2961 invalidateDisplayLists(); 2962 } break; 2963 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2964 setAccessibilityFocusedHost(null); 2965 } break; 2966 case MSG_DISPATCH_DONE_ANIMATING: { 2967 handleDispatchDoneAnimating(); 2968 } break; 2969 } 2970 } 2971 } 2972 2973 final ViewRootHandler mHandler = new ViewRootHandler(); 2974 2975 /** 2976 * Something in the current window tells us we need to change the touch mode. For 2977 * example, we are not in touch mode, and the user touches the screen. 2978 * 2979 * If the touch mode has changed, tell the window manager, and handle it locally. 2980 * 2981 * @param inTouchMode Whether we want to be in touch mode. 2982 * @return True if the touch mode changed and focus changed was changed as a result 2983 */ 2984 boolean ensureTouchMode(boolean inTouchMode) { 2985 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2986 + "touch mode is " + mAttachInfo.mInTouchMode); 2987 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2988 2989 // tell the window manager 2990 try { 2991 sWindowSession.setInTouchMode(inTouchMode); 2992 } catch (RemoteException e) { 2993 throw new RuntimeException(e); 2994 } 2995 2996 // handle the change 2997 return ensureTouchModeLocally(inTouchMode); 2998 } 2999 3000 /** 3001 * Ensure that the touch mode for this window is set, and if it is changing, 3002 * take the appropriate action. 3003 * @param inTouchMode Whether we want to be in touch mode. 3004 * @return True if the touch mode changed and focus changed was changed as a result 3005 */ 3006 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3007 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3008 + "touch mode is " + mAttachInfo.mInTouchMode); 3009 3010 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3011 3012 mAttachInfo.mInTouchMode = inTouchMode; 3013 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3014 3015 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3016 } 3017 3018 private boolean enterTouchMode() { 3019 if (mView != null) { 3020 if (mView.hasFocus()) { 3021 // note: not relying on mFocusedView here because this could 3022 // be when the window is first being added, and mFocused isn't 3023 // set yet. 3024 final View focused = mView.findFocus(); 3025 if (focused != null && !focused.isFocusableInTouchMode()) { 3026 3027 final ViewGroup ancestorToTakeFocus = 3028 findAncestorToTakeFocusInTouchMode(focused); 3029 if (ancestorToTakeFocus != null) { 3030 // there is an ancestor that wants focus after its descendants that 3031 // is focusable in touch mode.. give it focus 3032 return ancestorToTakeFocus.requestFocus(); 3033 } else { 3034 // nothing appropriate to have focus in touch mode, clear it out 3035 mView.unFocus(); 3036 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3037 mFocusedView = null; 3038 mOldFocusedView = null; 3039 return true; 3040 } 3041 } 3042 } 3043 } 3044 return false; 3045 } 3046 3047 /** 3048 * Find an ancestor of focused that wants focus after its descendants and is 3049 * focusable in touch mode. 3050 * @param focused The currently focused view. 3051 * @return An appropriate view, or null if no such view exists. 3052 */ 3053 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3054 ViewParent parent = focused.getParent(); 3055 while (parent instanceof ViewGroup) { 3056 final ViewGroup vgParent = (ViewGroup) parent; 3057 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3058 && vgParent.isFocusableInTouchMode()) { 3059 return vgParent; 3060 } 3061 if (vgParent.isRootNamespace()) { 3062 return null; 3063 } else { 3064 parent = vgParent.getParent(); 3065 } 3066 } 3067 return null; 3068 } 3069 3070 private boolean leaveTouchMode() { 3071 if (mView != null) { 3072 if (mView.hasFocus()) { 3073 // i learned the hard way to not trust mFocusedView :) 3074 mFocusedView = mView.findFocus(); 3075 if (!(mFocusedView instanceof ViewGroup)) { 3076 // some view has focus, let it keep it 3077 return false; 3078 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3079 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3080 // some view group has focus, and doesn't prefer its children 3081 // over itself for focus, so let them keep it. 3082 return false; 3083 } 3084 } 3085 3086 // find the best view to give focus to in this brave new non-touch-mode 3087 // world 3088 final View focused = focusSearch(null, View.FOCUS_DOWN); 3089 if (focused != null) { 3090 return focused.requestFocus(View.FOCUS_DOWN); 3091 } 3092 } 3093 return false; 3094 } 3095 3096 private void deliverInputEvent(QueuedInputEvent q) { 3097 if (ViewDebug.DEBUG_LATENCY) { 3098 q.mDeliverTimeNanos = System.nanoTime(); 3099 } 3100 3101 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3102 try { 3103 if (q.mEvent instanceof KeyEvent) { 3104 deliverKeyEvent(q); 3105 } else { 3106 final int source = q.mEvent.getSource(); 3107 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3108 deliverPointerEvent(q); 3109 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3110 deliverTrackballEvent(q); 3111 } else { 3112 deliverGenericMotionEvent(q); 3113 } 3114 } 3115 } finally { 3116 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3117 } 3118 } 3119 3120 private void deliverPointerEvent(QueuedInputEvent q) { 3121 final MotionEvent event = (MotionEvent)q.mEvent; 3122 final boolean isTouchEvent = event.isTouchEvent(); 3123 if (mInputEventConsistencyVerifier != null) { 3124 if (isTouchEvent) { 3125 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3126 } else { 3127 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3128 } 3129 } 3130 3131 // If there is no view, then the event will not be handled. 3132 if (mView == null || !mAdded) { 3133 finishInputEvent(q, false); 3134 return; 3135 } 3136 3137 // Translate the pointer event for compatibility, if needed. 3138 if (mTranslator != null) { 3139 mTranslator.translateEventInScreenToAppWindow(event); 3140 } 3141 3142 // Enter touch mode on down or scroll. 3143 final int action = event.getAction(); 3144 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3145 ensureTouchMode(true); 3146 } 3147 3148 // Offset the scroll position. 3149 if (mCurScrollY != 0) { 3150 event.offsetLocation(0, mCurScrollY); 3151 } 3152 if (MEASURE_LATENCY) { 3153 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3154 } 3155 3156 // Remember the touch position for possible drag-initiation. 3157 if (isTouchEvent) { 3158 mLastTouchPoint.x = event.getRawX(); 3159 mLastTouchPoint.y = event.getRawY(); 3160 } 3161 3162 // Dispatch touch to view hierarchy. 3163 boolean handled = mView.dispatchPointerEvent(event); 3164 if (MEASURE_LATENCY) { 3165 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3166 } 3167 if (handled) { 3168 finishInputEvent(q, true); 3169 return; 3170 } 3171 3172 // Pointer event was unhandled. 3173 finishInputEvent(q, false); 3174 } 3175 3176 private void deliverTrackballEvent(QueuedInputEvent q) { 3177 final MotionEvent event = (MotionEvent)q.mEvent; 3178 if (mInputEventConsistencyVerifier != null) { 3179 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3180 } 3181 3182 // If there is no view, then the event will not be handled. 3183 if (mView == null || !mAdded) { 3184 finishInputEvent(q, false); 3185 return; 3186 } 3187 3188 // Deliver the trackball event to the view. 3189 if (mView.dispatchTrackballEvent(event)) { 3190 // If we reach this, we delivered a trackball event to mView and 3191 // mView consumed it. Because we will not translate the trackball 3192 // event into a key event, touch mode will not exit, so we exit 3193 // touch mode here. 3194 ensureTouchMode(false); 3195 3196 finishInputEvent(q, true); 3197 mLastTrackballTime = Integer.MIN_VALUE; 3198 return; 3199 } 3200 3201 // Translate the trackball event into DPAD keys and try to deliver those. 3202 final TrackballAxis x = mTrackballAxisX; 3203 final TrackballAxis y = mTrackballAxisY; 3204 3205 long curTime = SystemClock.uptimeMillis(); 3206 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3207 // It has been too long since the last movement, 3208 // so restart at the beginning. 3209 x.reset(0); 3210 y.reset(0); 3211 mLastTrackballTime = curTime; 3212 } 3213 3214 final int action = event.getAction(); 3215 final int metaState = event.getMetaState(); 3216 switch (action) { 3217 case MotionEvent.ACTION_DOWN: 3218 x.reset(2); 3219 y.reset(2); 3220 enqueueInputEvent(new KeyEvent(curTime, curTime, 3221 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3222 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3223 InputDevice.SOURCE_KEYBOARD)); 3224 break; 3225 case MotionEvent.ACTION_UP: 3226 x.reset(2); 3227 y.reset(2); 3228 enqueueInputEvent(new KeyEvent(curTime, curTime, 3229 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3230 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3231 InputDevice.SOURCE_KEYBOARD)); 3232 break; 3233 } 3234 3235 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3236 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3237 + " move=" + event.getX() 3238 + " / Y=" + y.position + " step=" 3239 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3240 + " move=" + event.getY()); 3241 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3242 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3243 3244 // Generate DPAD events based on the trackball movement. 3245 // We pick the axis that has moved the most as the direction of 3246 // the DPAD. When we generate DPAD events for one axis, then the 3247 // other axis is reset -- we don't want to perform DPAD jumps due 3248 // to slight movements in the trackball when making major movements 3249 // along the other axis. 3250 int keycode = 0; 3251 int movement = 0; 3252 float accel = 1; 3253 if (xOff > yOff) { 3254 movement = x.generate((2/event.getXPrecision())); 3255 if (movement != 0) { 3256 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3257 : KeyEvent.KEYCODE_DPAD_LEFT; 3258 accel = x.acceleration; 3259 y.reset(2); 3260 } 3261 } else if (yOff > 0) { 3262 movement = y.generate((2/event.getYPrecision())); 3263 if (movement != 0) { 3264 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3265 : KeyEvent.KEYCODE_DPAD_UP; 3266 accel = y.acceleration; 3267 x.reset(2); 3268 } 3269 } 3270 3271 if (keycode != 0) { 3272 if (movement < 0) movement = -movement; 3273 int accelMovement = (int)(movement * accel); 3274 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3275 + " accelMovement=" + accelMovement 3276 + " accel=" + accel); 3277 if (accelMovement > movement) { 3278 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3279 + keycode); 3280 movement--; 3281 int repeatCount = accelMovement - movement; 3282 enqueueInputEvent(new KeyEvent(curTime, curTime, 3283 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3284 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3285 InputDevice.SOURCE_KEYBOARD)); 3286 } 3287 while (movement > 0) { 3288 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3289 + keycode); 3290 movement--; 3291 curTime = SystemClock.uptimeMillis(); 3292 enqueueInputEvent(new KeyEvent(curTime, curTime, 3293 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3294 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3295 InputDevice.SOURCE_KEYBOARD)); 3296 enqueueInputEvent(new KeyEvent(curTime, curTime, 3297 KeyEvent.ACTION_UP, keycode, 0, metaState, 3298 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3299 InputDevice.SOURCE_KEYBOARD)); 3300 } 3301 mLastTrackballTime = curTime; 3302 } 3303 3304 // Unfortunately we can't tell whether the application consumed the keys, so 3305 // we always consider the trackball event handled. 3306 finishInputEvent(q, true); 3307 } 3308 3309 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3310 final MotionEvent event = (MotionEvent)q.mEvent; 3311 if (mInputEventConsistencyVerifier != null) { 3312 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3313 } 3314 3315 final int source = event.getSource(); 3316 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3317 3318 // If there is no view, then the event will not be handled. 3319 if (mView == null || !mAdded) { 3320 if (isJoystick) { 3321 updateJoystickDirection(event, false); 3322 } 3323 finishInputEvent(q, false); 3324 return; 3325 } 3326 3327 // Deliver the event to the view. 3328 if (mView.dispatchGenericMotionEvent(event)) { 3329 if (isJoystick) { 3330 updateJoystickDirection(event, false); 3331 } 3332 finishInputEvent(q, true); 3333 return; 3334 } 3335 3336 if (isJoystick) { 3337 // Translate the joystick event into DPAD keys and try to deliver those. 3338 updateJoystickDirection(event, true); 3339 finishInputEvent(q, true); 3340 } else { 3341 finishInputEvent(q, false); 3342 } 3343 } 3344 3345 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3346 final long time = event.getEventTime(); 3347 final int metaState = event.getMetaState(); 3348 final int deviceId = event.getDeviceId(); 3349 final int source = event.getSource(); 3350 3351 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3352 if (xDirection == 0) { 3353 xDirection = joystickAxisValueToDirection(event.getX()); 3354 } 3355 3356 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3357 if (yDirection == 0) { 3358 yDirection = joystickAxisValueToDirection(event.getY()); 3359 } 3360 3361 if (xDirection != mLastJoystickXDirection) { 3362 if (mLastJoystickXKeyCode != 0) { 3363 enqueueInputEvent(new KeyEvent(time, time, 3364 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3365 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3366 mLastJoystickXKeyCode = 0; 3367 } 3368 3369 mLastJoystickXDirection = xDirection; 3370 3371 if (xDirection != 0 && synthesizeNewKeys) { 3372 mLastJoystickXKeyCode = xDirection > 0 3373 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3374 enqueueInputEvent(new KeyEvent(time, time, 3375 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3376 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3377 } 3378 } 3379 3380 if (yDirection != mLastJoystickYDirection) { 3381 if (mLastJoystickYKeyCode != 0) { 3382 enqueueInputEvent(new KeyEvent(time, time, 3383 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3384 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3385 mLastJoystickYKeyCode = 0; 3386 } 3387 3388 mLastJoystickYDirection = yDirection; 3389 3390 if (yDirection != 0 && synthesizeNewKeys) { 3391 mLastJoystickYKeyCode = yDirection > 0 3392 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3393 enqueueInputEvent(new KeyEvent(time, time, 3394 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3395 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3396 } 3397 } 3398 } 3399 3400 private static int joystickAxisValueToDirection(float value) { 3401 if (value >= 0.5f) { 3402 return 1; 3403 } else if (value <= -0.5f) { 3404 return -1; 3405 } else { 3406 return 0; 3407 } 3408 } 3409 3410 /** 3411 * Returns true if the key is used for keyboard navigation. 3412 * @param keyEvent The key event. 3413 * @return True if the key is used for keyboard navigation. 3414 */ 3415 private static boolean isNavigationKey(KeyEvent keyEvent) { 3416 switch (keyEvent.getKeyCode()) { 3417 case KeyEvent.KEYCODE_DPAD_LEFT: 3418 case KeyEvent.KEYCODE_DPAD_RIGHT: 3419 case KeyEvent.KEYCODE_DPAD_UP: 3420 case KeyEvent.KEYCODE_DPAD_DOWN: 3421 case KeyEvent.KEYCODE_DPAD_CENTER: 3422 case KeyEvent.KEYCODE_PAGE_UP: 3423 case KeyEvent.KEYCODE_PAGE_DOWN: 3424 case KeyEvent.KEYCODE_MOVE_HOME: 3425 case KeyEvent.KEYCODE_MOVE_END: 3426 case KeyEvent.KEYCODE_TAB: 3427 case KeyEvent.KEYCODE_SPACE: 3428 case KeyEvent.KEYCODE_ENTER: 3429 return true; 3430 } 3431 return false; 3432 } 3433 3434 /** 3435 * Returns true if the key is used for typing. 3436 * @param keyEvent The key event. 3437 * @return True if the key is used for typing. 3438 */ 3439 private static boolean isTypingKey(KeyEvent keyEvent) { 3440 return keyEvent.getUnicodeChar() > 0; 3441 } 3442 3443 /** 3444 * See if the key event means we should leave touch mode (and leave touch mode if so). 3445 * @param event The key event. 3446 * @return Whether this key event should be consumed (meaning the act of 3447 * leaving touch mode alone is considered the event). 3448 */ 3449 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3450 // Only relevant in touch mode. 3451 if (!mAttachInfo.mInTouchMode) { 3452 return false; 3453 } 3454 3455 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3456 final int action = event.getAction(); 3457 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3458 return false; 3459 } 3460 3461 // Don't leave touch mode if the IME told us not to. 3462 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3463 return false; 3464 } 3465 3466 // If the key can be used for keyboard navigation then leave touch mode 3467 // and select a focused view if needed (in ensureTouchMode). 3468 // When a new focused view is selected, we consume the navigation key because 3469 // navigation doesn't make much sense unless a view already has focus so 3470 // the key's purpose is to set focus. 3471 if (isNavigationKey(event)) { 3472 return ensureTouchMode(false); 3473 } 3474 3475 // If the key can be used for typing then leave touch mode 3476 // and select a focused view if needed (in ensureTouchMode). 3477 // Always allow the view to process the typing key. 3478 if (isTypingKey(event)) { 3479 ensureTouchMode(false); 3480 return false; 3481 } 3482 3483 return false; 3484 } 3485 3486 private void deliverKeyEvent(QueuedInputEvent q) { 3487 final KeyEvent event = (KeyEvent)q.mEvent; 3488 if (mInputEventConsistencyVerifier != null) { 3489 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3490 } 3491 3492 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3493 // If there is no view, then the event will not be handled. 3494 if (mView == null || !mAdded) { 3495 finishInputEvent(q, false); 3496 return; 3497 } 3498 3499 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3500 3501 // Perform predispatching before the IME. 3502 if (mView.dispatchKeyEventPreIme(event)) { 3503 finishInputEvent(q, true); 3504 return; 3505 } 3506 3507 // Dispatch to the IME before propagating down the view hierarchy. 3508 // The IME will eventually call back into handleImeFinishedEvent. 3509 if (mLastWasImTarget) { 3510 InputMethodManager imm = InputMethodManager.peekInstance(); 3511 if (imm != null) { 3512 final int seq = event.getSequenceNumber(); 3513 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3514 + seq + " event=" + event); 3515 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3516 return; 3517 } 3518 } 3519 } 3520 3521 // Not dispatching to IME, continue with post IME actions. 3522 deliverKeyEventPostIme(q); 3523 } 3524 3525 void handleImeFinishedEvent(int seq, boolean handled) { 3526 final QueuedInputEvent q = mCurrentInputEvent; 3527 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3528 final KeyEvent event = (KeyEvent)q.mEvent; 3529 if (DEBUG_IMF) { 3530 Log.v(TAG, "IME finished event: seq=" + seq 3531 + " handled=" + handled + " event=" + event); 3532 } 3533 if (handled) { 3534 finishInputEvent(q, true); 3535 } else { 3536 deliverKeyEventPostIme(q); 3537 } 3538 } else { 3539 if (DEBUG_IMF) { 3540 Log.v(TAG, "IME finished event: seq=" + seq 3541 + " handled=" + handled + ", event not found!"); 3542 } 3543 } 3544 } 3545 3546 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3547 final KeyEvent event = (KeyEvent)q.mEvent; 3548 if (ViewDebug.DEBUG_LATENCY) { 3549 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3550 } 3551 3552 // If the view went away, then the event will not be handled. 3553 if (mView == null || !mAdded) { 3554 finishInputEvent(q, false); 3555 return; 3556 } 3557 3558 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3559 if (checkForLeavingTouchModeAndConsume(event)) { 3560 finishInputEvent(q, true); 3561 return; 3562 } 3563 3564 // Make sure the fallback event policy sees all keys that will be delivered to the 3565 // view hierarchy. 3566 mFallbackEventHandler.preDispatchKeyEvent(event); 3567 3568 // Deliver the key to the view hierarchy. 3569 if (mView.dispatchKeyEvent(event)) { 3570 finishInputEvent(q, true); 3571 return; 3572 } 3573 3574 // If the Control modifier is held, try to interpret the key as a shortcut. 3575 if (event.getAction() == KeyEvent.ACTION_DOWN 3576 && event.isCtrlPressed() 3577 && event.getRepeatCount() == 0 3578 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3579 if (mView.dispatchKeyShortcutEvent(event)) { 3580 finishInputEvent(q, true); 3581 return; 3582 } 3583 } 3584 3585 // Apply the fallback event policy. 3586 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3587 finishInputEvent(q, true); 3588 return; 3589 } 3590 3591 // Handle automatic focus changes. 3592 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3593 int direction = 0; 3594 switch (event.getKeyCode()) { 3595 case KeyEvent.KEYCODE_DPAD_LEFT: 3596 if (event.hasNoModifiers()) { 3597 direction = View.FOCUS_LEFT; 3598 } 3599 break; 3600 case KeyEvent.KEYCODE_DPAD_RIGHT: 3601 if (event.hasNoModifiers()) { 3602 direction = View.FOCUS_RIGHT; 3603 } 3604 break; 3605 case KeyEvent.KEYCODE_DPAD_UP: 3606 if (event.hasNoModifiers()) { 3607 direction = View.FOCUS_UP; 3608 } 3609 break; 3610 case KeyEvent.KEYCODE_DPAD_DOWN: 3611 if (event.hasNoModifiers()) { 3612 direction = View.FOCUS_DOWN; 3613 } 3614 break; 3615 case KeyEvent.KEYCODE_TAB: 3616 if (event.hasNoModifiers()) { 3617 direction = View.FOCUS_FORWARD; 3618 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3619 direction = View.FOCUS_BACKWARD; 3620 } 3621 break; 3622 } 3623 if (direction != 0) { 3624 View focused = mView.findFocus(); 3625 if (focused != null) { 3626 View v = focused.focusSearch(direction); 3627 if (v != null && v != focused) { 3628 // do the math the get the interesting rect 3629 // of previous focused into the coord system of 3630 // newly focused view 3631 focused.getFocusedRect(mTempRect); 3632 if (mView instanceof ViewGroup) { 3633 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3634 focused, mTempRect); 3635 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3636 v, mTempRect); 3637 } 3638 if (v.requestFocus(direction, mTempRect)) { 3639 playSoundEffect(SoundEffectConstants 3640 .getContantForFocusDirection(direction)); 3641 finishInputEvent(q, true); 3642 return; 3643 } 3644 } 3645 3646 // Give the focused view a last chance to handle the dpad key. 3647 if (mView.dispatchUnhandledMove(focused, direction)) { 3648 finishInputEvent(q, true); 3649 return; 3650 } 3651 } 3652 } 3653 } 3654 3655 // Key was unhandled. 3656 finishInputEvent(q, false); 3657 } 3658 3659 /* drag/drop */ 3660 void setLocalDragState(Object obj) { 3661 mLocalDragState = obj; 3662 } 3663 3664 private void handleDragEvent(DragEvent event) { 3665 // From the root, only drag start/end/location are dispatched. entered/exited 3666 // are determined and dispatched by the viewgroup hierarchy, who then report 3667 // that back here for ultimate reporting back to the framework. 3668 if (mView != null && mAdded) { 3669 final int what = event.mAction; 3670 3671 if (what == DragEvent.ACTION_DRAG_EXITED) { 3672 // A direct EXITED event means that the window manager knows we've just crossed 3673 // a window boundary, so the current drag target within this one must have 3674 // just been exited. Send it the usual notifications and then we're done 3675 // for now. 3676 mView.dispatchDragEvent(event); 3677 } else { 3678 // Cache the drag description when the operation starts, then fill it in 3679 // on subsequent calls as a convenience 3680 if (what == DragEvent.ACTION_DRAG_STARTED) { 3681 mCurrentDragView = null; // Start the current-recipient tracking 3682 mDragDescription = event.mClipDescription; 3683 } else { 3684 event.mClipDescription = mDragDescription; 3685 } 3686 3687 // For events with a [screen] location, translate into window coordinates 3688 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3689 mDragPoint.set(event.mX, event.mY); 3690 if (mTranslator != null) { 3691 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3692 } 3693 3694 if (mCurScrollY != 0) { 3695 mDragPoint.offset(0, mCurScrollY); 3696 } 3697 3698 event.mX = mDragPoint.x; 3699 event.mY = mDragPoint.y; 3700 } 3701 3702 // Remember who the current drag target is pre-dispatch 3703 final View prevDragView = mCurrentDragView; 3704 3705 // Now dispatch the drag/drop event 3706 boolean result = mView.dispatchDragEvent(event); 3707 3708 // If we changed apparent drag target, tell the OS about it 3709 if (prevDragView != mCurrentDragView) { 3710 try { 3711 if (prevDragView != null) { 3712 sWindowSession.dragRecipientExited(mWindow); 3713 } 3714 if (mCurrentDragView != null) { 3715 sWindowSession.dragRecipientEntered(mWindow); 3716 } 3717 } catch (RemoteException e) { 3718 Slog.e(TAG, "Unable to note drag target change"); 3719 } 3720 } 3721 3722 // Report the drop result when we're done 3723 if (what == DragEvent.ACTION_DROP) { 3724 mDragDescription = null; 3725 try { 3726 Log.i(TAG, "Reporting drop result: " + result); 3727 sWindowSession.reportDropResult(mWindow, result); 3728 } catch (RemoteException e) { 3729 Log.e(TAG, "Unable to report drop result"); 3730 } 3731 } 3732 3733 // When the drag operation ends, release any local state object 3734 // that may have been in use 3735 if (what == DragEvent.ACTION_DRAG_ENDED) { 3736 setLocalDragState(null); 3737 } 3738 } 3739 } 3740 event.recycle(); 3741 } 3742 3743 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3744 if (mSeq != args.seq) { 3745 // The sequence has changed, so we need to update our value and make 3746 // sure to do a traversal afterward so the window manager is given our 3747 // most recent data. 3748 mSeq = args.seq; 3749 mAttachInfo.mForceReportNewAttributes = true; 3750 scheduleTraversals(); 3751 } 3752 if (mView == null) return; 3753 if (args.localChanges != 0) { 3754 if (mAttachInfo != null) { 3755 mAttachInfo.mRecomputeGlobalAttributes = true; 3756 } 3757 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3758 scheduleTraversals(); 3759 } 3760 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3761 } 3762 3763 public void handleDispatchDoneAnimating() { 3764 if (mWindowsAnimating) { 3765 mWindowsAnimating = false; 3766 if (!mDirty.isEmpty() || mIsAnimating) { 3767 scheduleTraversals(); 3768 } 3769 } 3770 } 3771 3772 public void getLastTouchPoint(Point outLocation) { 3773 outLocation.x = (int) mLastTouchPoint.x; 3774 outLocation.y = (int) mLastTouchPoint.y; 3775 } 3776 3777 public void setDragFocus(View newDragTarget) { 3778 if (mCurrentDragView != newDragTarget) { 3779 mCurrentDragView = newDragTarget; 3780 } 3781 } 3782 3783 private AudioManager getAudioManager() { 3784 if (mView == null) { 3785 throw new IllegalStateException("getAudioManager called when there is no mView"); 3786 } 3787 if (mAudioManager == null) { 3788 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3789 } 3790 return mAudioManager; 3791 } 3792 3793 public AccessibilityInteractionController getAccessibilityInteractionController() { 3794 if (mView == null) { 3795 throw new IllegalStateException("getAccessibilityInteractionController" 3796 + " called when there is no mView"); 3797 } 3798 if (mAccessibilityInteractionController == null) { 3799 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3800 } 3801 return mAccessibilityInteractionController; 3802 } 3803 3804 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3805 boolean insetsPending) throws RemoteException { 3806 3807 float appScale = mAttachInfo.mApplicationScale; 3808 boolean restore = false; 3809 if (params != null && mTranslator != null) { 3810 restore = true; 3811 params.backup(); 3812 mTranslator.translateWindowLayout(params); 3813 } 3814 if (params != null) { 3815 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3816 } 3817 mPendingConfiguration.seq = 0; 3818 //Log.d(TAG, ">>>>>> CALLING relayout"); 3819 if (params != null && mOrigWindowType != params.type) { 3820 // For compatibility with old apps, don't crash here. 3821 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3822 Slog.w(TAG, "Window type can not be changed after " 3823 + "the window is added; ignoring change of " + mView); 3824 params.type = mOrigWindowType; 3825 } 3826 } 3827 int relayoutResult = sWindowSession.relayout( 3828 mWindow, mSeq, params, 3829 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3830 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3831 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3832 mWinFrame, mPendingSystemInsets, mPendingContentInsets, mPendingVisibleInsets, 3833 mPendingConfiguration, mSurface); 3834 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3835 if (restore) { 3836 params.restore(); 3837 } 3838 3839 if (mTranslator != null) { 3840 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3841 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3842 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3843 } 3844 return relayoutResult; 3845 } 3846 3847 /** 3848 * {@inheritDoc} 3849 */ 3850 public void playSoundEffect(int effectId) { 3851 checkThread(); 3852 3853 try { 3854 final AudioManager audioManager = getAudioManager(); 3855 3856 switch (effectId) { 3857 case SoundEffectConstants.CLICK: 3858 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3859 return; 3860 case SoundEffectConstants.NAVIGATION_DOWN: 3861 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3862 return; 3863 case SoundEffectConstants.NAVIGATION_LEFT: 3864 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3865 return; 3866 case SoundEffectConstants.NAVIGATION_RIGHT: 3867 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3868 return; 3869 case SoundEffectConstants.NAVIGATION_UP: 3870 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3871 return; 3872 default: 3873 throw new IllegalArgumentException("unknown effect id " + effectId + 3874 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3875 } 3876 } catch (IllegalStateException e) { 3877 // Exception thrown by getAudioManager() when mView is null 3878 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3879 e.printStackTrace(); 3880 } 3881 } 3882 3883 /** 3884 * {@inheritDoc} 3885 */ 3886 public boolean performHapticFeedback(int effectId, boolean always) { 3887 try { 3888 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3889 } catch (RemoteException e) { 3890 return false; 3891 } 3892 } 3893 3894 /** 3895 * {@inheritDoc} 3896 */ 3897 public View focusSearch(View focused, int direction) { 3898 checkThread(); 3899 if (!(mView instanceof ViewGroup)) { 3900 return null; 3901 } 3902 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3903 } 3904 3905 public void debug() { 3906 mView.debug(); 3907 } 3908 3909 public void dumpGfxInfo(int[] info) { 3910 if (mView != null) { 3911 getGfxInfo(mView, info); 3912 } else { 3913 info[0] = info[1] = 0; 3914 } 3915 } 3916 3917 private static void getGfxInfo(View view, int[] info) { 3918 DisplayList displayList = view.mDisplayList; 3919 info[0]++; 3920 if (displayList != null) { 3921 info[1] += displayList.getSize(); 3922 } 3923 3924 if (view instanceof ViewGroup) { 3925 ViewGroup group = (ViewGroup) view; 3926 3927 int count = group.getChildCount(); 3928 for (int i = 0; i < count; i++) { 3929 getGfxInfo(group.getChildAt(i), info); 3930 } 3931 } 3932 } 3933 3934 public void die(boolean immediate) { 3935 if (immediate) { 3936 doDie(); 3937 } else { 3938 destroyHardwareRenderer(); 3939 mHandler.sendEmptyMessage(MSG_DIE); 3940 } 3941 } 3942 3943 void doDie() { 3944 checkThread(); 3945 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3946 synchronized (this) { 3947 if (mAdded) { 3948 dispatchDetachedFromWindow(); 3949 } 3950 3951 if (mAdded && !mFirst) { 3952 destroyHardwareRenderer(); 3953 3954 if (mView != null) { 3955 int viewVisibility = mView.getVisibility(); 3956 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3957 if (mWindowAttributesChanged || viewVisibilityChanged) { 3958 // If layout params have been changed, first give them 3959 // to the window manager to make sure it has the correct 3960 // animation info. 3961 try { 3962 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3963 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3964 sWindowSession.finishDrawing(mWindow); 3965 } 3966 } catch (RemoteException e) { 3967 } 3968 } 3969 3970 mSurface.release(); 3971 } 3972 } 3973 3974 mAdded = false; 3975 } 3976 } 3977 3978 public void requestUpdateConfiguration(Configuration config) { 3979 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 3980 mHandler.sendMessage(msg); 3981 } 3982 3983 private void destroyHardwareRenderer() { 3984 AttachInfo attachInfo = mAttachInfo; 3985 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 3986 3987 if (hardwareRenderer != null) { 3988 if (mView != null) { 3989 hardwareRenderer.destroyHardwareResources(mView); 3990 } 3991 hardwareRenderer.destroy(true); 3992 hardwareRenderer.setRequested(false); 3993 3994 attachInfo.mHardwareRenderer = null; 3995 attachInfo.mHardwareAccelerated = false; 3996 } 3997 } 3998 3999 void dispatchImeFinishedEvent(int seq, boolean handled) { 4000 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4001 msg.arg1 = seq; 4002 msg.arg2 = handled ? 1 : 0; 4003 msg.setAsynchronous(true); 4004 mHandler.sendMessage(msg); 4005 } 4006 4007 public void dispatchFinishInputConnection(InputConnection connection) { 4008 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4009 mHandler.sendMessage(msg); 4010 } 4011 4012 public void dispatchResized(int w, int h, Rect coveredInsets, 4013 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4014 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4015 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 4016 + " visibleInsets=" + visibleInsets.toShortString() 4017 + " reportDraw=" + reportDraw); 4018 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4019 if (mTranslator != null) { 4020 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 4021 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4022 w *= mTranslator.applicationInvertedScale; 4023 h *= mTranslator.applicationInvertedScale; 4024 } 4025 msg.arg1 = w; 4026 msg.arg2 = h; 4027 ResizedInfo ri = new ResizedInfo(); 4028 ri.coveredInsets = new Rect(coveredInsets); 4029 ri.visibleInsets = new Rect(visibleInsets); 4030 ri.newConfig = newConfig; 4031 msg.obj = ri; 4032 mHandler.sendMessage(msg); 4033 } 4034 4035 /** 4036 * Represents a pending input event that is waiting in a queue. 4037 * 4038 * Input events are processed in serial order by the timestamp specified by 4039 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4040 * one input event to the application at a time and waits for the application 4041 * to finish handling it before delivering the next one. 4042 * 4043 * However, because the application or IME can synthesize and inject multiple 4044 * key events at a time without going through the input dispatcher, we end up 4045 * needing a queue on the application's side. 4046 */ 4047 private static final class QueuedInputEvent { 4048 public static final int FLAG_DELIVER_POST_IME = 1; 4049 4050 public QueuedInputEvent mNext; 4051 4052 public InputEvent mEvent; 4053 public InputEventReceiver mReceiver; 4054 public int mFlags; 4055 4056 // Used for latency calculations. 4057 public long mReceiveTimeNanos; 4058 public long mDeliverTimeNanos; 4059 public long mDeliverPostImeTimeNanos; 4060 } 4061 4062 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4063 InputEventReceiver receiver, int flags) { 4064 QueuedInputEvent q = mQueuedInputEventPool; 4065 if (q != null) { 4066 mQueuedInputEventPoolSize -= 1; 4067 mQueuedInputEventPool = q.mNext; 4068 q.mNext = null; 4069 } else { 4070 q = new QueuedInputEvent(); 4071 } 4072 4073 q.mEvent = event; 4074 q.mReceiver = receiver; 4075 q.mFlags = flags; 4076 return q; 4077 } 4078 4079 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4080 q.mEvent = null; 4081 q.mReceiver = null; 4082 4083 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4084 mQueuedInputEventPoolSize += 1; 4085 q.mNext = mQueuedInputEventPool; 4086 mQueuedInputEventPool = q; 4087 } 4088 } 4089 4090 void enqueueInputEvent(InputEvent event) { 4091 enqueueInputEvent(event, null, 0, false); 4092 } 4093 4094 void enqueueInputEvent(InputEvent event, 4095 InputEventReceiver receiver, int flags, boolean processImmediately) { 4096 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4097 4098 if (ViewDebug.DEBUG_LATENCY) { 4099 q.mReceiveTimeNanos = System.nanoTime(); 4100 q.mDeliverTimeNanos = 0; 4101 q.mDeliverPostImeTimeNanos = 0; 4102 } 4103 4104 // Always enqueue the input event in order, regardless of its time stamp. 4105 // We do this because the application or the IME may inject key events 4106 // in response to touch events and we want to ensure that the injected keys 4107 // are processed in the order they were received and we cannot trust that 4108 // the time stamp of injected events are monotonic. 4109 QueuedInputEvent last = mFirstPendingInputEvent; 4110 if (last == null) { 4111 mFirstPendingInputEvent = q; 4112 } else { 4113 while (last.mNext != null) { 4114 last = last.mNext; 4115 } 4116 last.mNext = q; 4117 } 4118 4119 if (processImmediately) { 4120 doProcessInputEvents(); 4121 } else { 4122 scheduleProcessInputEvents(); 4123 } 4124 } 4125 4126 private void scheduleProcessInputEvents() { 4127 if (!mProcessInputEventsScheduled) { 4128 mProcessInputEventsScheduled = true; 4129 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4130 msg.setAsynchronous(true); 4131 mHandler.sendMessage(msg); 4132 } 4133 } 4134 4135 void doProcessInputEvents() { 4136 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4137 QueuedInputEvent q = mFirstPendingInputEvent; 4138 mFirstPendingInputEvent = q.mNext; 4139 q.mNext = null; 4140 mCurrentInputEvent = q; 4141 deliverInputEvent(q); 4142 } 4143 4144 // We are done processing all input events that we can process right now 4145 // so we can clear the pending flag immediately. 4146 if (mProcessInputEventsScheduled) { 4147 mProcessInputEventsScheduled = false; 4148 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4149 } 4150 } 4151 4152 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4153 if (q != mCurrentInputEvent) { 4154 throw new IllegalStateException("finished input event out of order"); 4155 } 4156 4157 if (ViewDebug.DEBUG_LATENCY) { 4158 final long now = System.nanoTime(); 4159 final long eventTime = q.mEvent.getEventTimeNano(); 4160 final StringBuilder msg = new StringBuilder(); 4161 msg.append("Spent "); 4162 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 4163 msg.append("ms processing "); 4164 if (q.mEvent instanceof KeyEvent) { 4165 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 4166 msg.append("key event, action="); 4167 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 4168 } else { 4169 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 4170 msg.append("motion event, action="); 4171 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 4172 msg.append(", historySize="); 4173 msg.append(motionEvent.getHistorySize()); 4174 } 4175 msg.append(", handled="); 4176 msg.append(handled); 4177 msg.append(", received at +"); 4178 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 4179 if (q.mDeliverTimeNanos != 0) { 4180 msg.append("ms, delivered at +"); 4181 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 4182 } 4183 if (q.mDeliverPostImeTimeNanos != 0) { 4184 msg.append("ms, delivered post IME at +"); 4185 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 4186 } 4187 msg.append("ms, finished at +"); 4188 msg.append((now - eventTime) * 0.000001f); 4189 msg.append("ms."); 4190 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 4191 } 4192 4193 if (q.mReceiver != null) { 4194 q.mReceiver.finishInputEvent(q.mEvent, handled); 4195 } else { 4196 q.mEvent.recycleIfNeededAfterDispatch(); 4197 } 4198 4199 recycleQueuedInputEvent(q); 4200 4201 mCurrentInputEvent = null; 4202 if (mFirstPendingInputEvent != null) { 4203 scheduleProcessInputEvents(); 4204 } 4205 } 4206 4207 void scheduleConsumeBatchedInput() { 4208 if (!mConsumeBatchedInputScheduled) { 4209 mConsumeBatchedInputScheduled = true; 4210 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4211 mConsumedBatchedInputRunnable, null); 4212 } 4213 } 4214 4215 void unscheduleConsumeBatchedInput() { 4216 if (mConsumeBatchedInputScheduled) { 4217 mConsumeBatchedInputScheduled = false; 4218 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4219 mConsumedBatchedInputRunnable, null); 4220 } 4221 } 4222 4223 void doConsumeBatchedInput(long frameTimeNanos) { 4224 if (mConsumeBatchedInputScheduled) { 4225 mConsumeBatchedInputScheduled = false; 4226 if (mInputEventReceiver != null) { 4227 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4228 } 4229 doProcessInputEvents(); 4230 } 4231 } 4232 4233 final class TraversalRunnable implements Runnable { 4234 @Override 4235 public void run() { 4236 doTraversal(); 4237 } 4238 } 4239 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4240 4241 final class WindowInputEventReceiver extends InputEventReceiver { 4242 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4243 super(inputChannel, looper); 4244 } 4245 4246 @Override 4247 public void onInputEvent(InputEvent event) { 4248 enqueueInputEvent(event, this, 0, true); 4249 } 4250 4251 @Override 4252 public void onBatchedInputEventPending() { 4253 scheduleConsumeBatchedInput(); 4254 } 4255 4256 @Override 4257 public void dispose() { 4258 unscheduleConsumeBatchedInput(); 4259 super.dispose(); 4260 } 4261 } 4262 WindowInputEventReceiver mInputEventReceiver; 4263 4264 final class ConsumeBatchedInputRunnable implements Runnable { 4265 @Override 4266 public void run() { 4267 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4268 } 4269 } 4270 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4271 new ConsumeBatchedInputRunnable(); 4272 boolean mConsumeBatchedInputScheduled; 4273 4274 final class InvalidateOnAnimationRunnable implements Runnable { 4275 private boolean mPosted; 4276 private ArrayList<View> mViews = new ArrayList<View>(); 4277 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4278 new ArrayList<AttachInfo.InvalidateInfo>(); 4279 private View[] mTempViews; 4280 private AttachInfo.InvalidateInfo[] mTempViewRects; 4281 4282 public void addView(View view) { 4283 synchronized (this) { 4284 mViews.add(view); 4285 postIfNeededLocked(); 4286 } 4287 } 4288 4289 public void addViewRect(AttachInfo.InvalidateInfo info) { 4290 synchronized (this) { 4291 mViewRects.add(info); 4292 postIfNeededLocked(); 4293 } 4294 } 4295 4296 public void removeView(View view) { 4297 synchronized (this) { 4298 mViews.remove(view); 4299 4300 for (int i = mViewRects.size(); i-- > 0; ) { 4301 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4302 if (info.target == view) { 4303 mViewRects.remove(i); 4304 info.release(); 4305 } 4306 } 4307 4308 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4309 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4310 mPosted = false; 4311 } 4312 } 4313 } 4314 4315 @Override 4316 public void run() { 4317 final int viewCount; 4318 final int viewRectCount; 4319 synchronized (this) { 4320 mPosted = false; 4321 4322 viewCount = mViews.size(); 4323 if (viewCount != 0) { 4324 mTempViews = mViews.toArray(mTempViews != null 4325 ? mTempViews : new View[viewCount]); 4326 mViews.clear(); 4327 } 4328 4329 viewRectCount = mViewRects.size(); 4330 if (viewRectCount != 0) { 4331 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4332 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4333 mViewRects.clear(); 4334 } 4335 } 4336 4337 for (int i = 0; i < viewCount; i++) { 4338 mTempViews[i].invalidate(); 4339 } 4340 4341 for (int i = 0; i < viewRectCount; i++) { 4342 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4343 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4344 info.release(); 4345 } 4346 } 4347 4348 private void postIfNeededLocked() { 4349 if (!mPosted) { 4350 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4351 mPosted = true; 4352 } 4353 } 4354 } 4355 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4356 new InvalidateOnAnimationRunnable(); 4357 4358 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4359 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4360 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4361 } 4362 4363 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4364 long delayMilliseconds) { 4365 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4366 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4367 } 4368 4369 public void dispatchInvalidateOnAnimation(View view) { 4370 mInvalidateOnAnimationRunnable.addView(view); 4371 } 4372 4373 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4374 mInvalidateOnAnimationRunnable.addViewRect(info); 4375 } 4376 4377 public void invalidateDisplayList(DisplayList displayList) { 4378 mDisplayLists.add(displayList); 4379 4380 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4381 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4382 mHandler.sendMessage(msg); 4383 } 4384 4385 public void cancelInvalidate(View view) { 4386 mHandler.removeMessages(MSG_INVALIDATE, view); 4387 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4388 // them to the pool 4389 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4390 mInvalidateOnAnimationRunnable.removeView(view); 4391 } 4392 4393 public void dispatchKey(KeyEvent event) { 4394 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4395 msg.setAsynchronous(true); 4396 mHandler.sendMessage(msg); 4397 } 4398 4399 public void dispatchKeyFromIme(KeyEvent event) { 4400 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4401 msg.setAsynchronous(true); 4402 mHandler.sendMessage(msg); 4403 } 4404 4405 public void dispatchUnhandledKey(KeyEvent event) { 4406 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4407 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4408 final int keyCode = event.getKeyCode(); 4409 final int metaState = event.getMetaState(); 4410 4411 KeyEvent fallbackEvent = null; 4412 synchronized (mFallbackAction) { 4413 // Check for fallback actions specified by the key character map. 4414 if (kcm.getFallbackAction(keyCode, metaState, mFallbackAction)) { 4415 int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4416 fallbackEvent = KeyEvent.obtain( 4417 event.getDownTime(), event.getEventTime(), 4418 event.getAction(), mFallbackAction.keyCode, 4419 event.getRepeatCount(), mFallbackAction.metaState, 4420 event.getDeviceId(), event.getScanCode(), 4421 flags, event.getSource(), null); 4422 } 4423 } 4424 if (fallbackEvent != null) { 4425 dispatchKey(fallbackEvent); 4426 } 4427 } 4428 } 4429 4430 public void dispatchAppVisibility(boolean visible) { 4431 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4432 msg.arg1 = visible ? 1 : 0; 4433 mHandler.sendMessage(msg); 4434 } 4435 4436 public void dispatchScreenStateChange(boolean on) { 4437 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4438 msg.arg1 = on ? 1 : 0; 4439 mHandler.sendMessage(msg); 4440 } 4441 4442 public void dispatchGetNewSurface() { 4443 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4444 mHandler.sendMessage(msg); 4445 } 4446 4447 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4448 Message msg = Message.obtain(); 4449 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4450 msg.arg1 = hasFocus ? 1 : 0; 4451 msg.arg2 = inTouchMode ? 1 : 0; 4452 mHandler.sendMessage(msg); 4453 } 4454 4455 public void dispatchCloseSystemDialogs(String reason) { 4456 Message msg = Message.obtain(); 4457 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4458 msg.obj = reason; 4459 mHandler.sendMessage(msg); 4460 } 4461 4462 public void dispatchDragEvent(DragEvent event) { 4463 final int what; 4464 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4465 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4466 mHandler.removeMessages(what); 4467 } else { 4468 what = MSG_DISPATCH_DRAG_EVENT; 4469 } 4470 Message msg = mHandler.obtainMessage(what, event); 4471 mHandler.sendMessage(msg); 4472 } 4473 4474 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4475 int localValue, int localChanges) { 4476 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4477 args.seq = seq; 4478 args.globalVisibility = globalVisibility; 4479 args.localValue = localValue; 4480 args.localChanges = localChanges; 4481 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4482 } 4483 4484 public void dispatchDoneAnimating() { 4485 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4486 } 4487 4488 public void dispatchCheckFocus() { 4489 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4490 // This will result in a call to checkFocus() below. 4491 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4492 } 4493 } 4494 4495 /** 4496 * Post a callback to send a 4497 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4498 * This event is send at most once every 4499 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4500 */ 4501 private void postSendWindowContentChangedCallback(View source) { 4502 if (mSendWindowContentChangedAccessibilityEvent == null) { 4503 mSendWindowContentChangedAccessibilityEvent = 4504 new SendWindowContentChangedAccessibilityEvent(); 4505 } 4506 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4507 if (oldSource == null) { 4508 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4509 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4510 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4511 } else { 4512 mSendWindowContentChangedAccessibilityEvent.mSource = 4513 getCommonPredecessor(oldSource, source); 4514 } 4515 } 4516 4517 /** 4518 * Remove a posted callback to send a 4519 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4520 */ 4521 private void removeSendWindowContentChangedCallback() { 4522 if (mSendWindowContentChangedAccessibilityEvent != null) { 4523 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4524 } 4525 } 4526 4527 public boolean showContextMenuForChild(View originalView) { 4528 return false; 4529 } 4530 4531 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4532 return null; 4533 } 4534 4535 public void createContextMenu(ContextMenu menu) { 4536 } 4537 4538 public void childDrawableStateChanged(View child) { 4539 } 4540 4541 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4542 if (mView == null) { 4543 return false; 4544 } 4545 mAccessibilityManager.sendAccessibilityEvent(event); 4546 return true; 4547 } 4548 4549 @Override 4550 public void childAccessibilityStateChanged(View child) { 4551 postSendWindowContentChangedCallback(child); 4552 } 4553 4554 private View getCommonPredecessor(View first, View second) { 4555 if (mAttachInfo != null) { 4556 if (mTempHashSet == null) { 4557 mTempHashSet = new HashSet<View>(); 4558 } 4559 HashSet<View> seen = mTempHashSet; 4560 seen.clear(); 4561 View firstCurrent = first; 4562 while (firstCurrent != null) { 4563 seen.add(firstCurrent); 4564 ViewParent firstCurrentParent = firstCurrent.mParent; 4565 if (firstCurrentParent instanceof View) { 4566 firstCurrent = (View) firstCurrentParent; 4567 } else { 4568 firstCurrent = null; 4569 } 4570 } 4571 View secondCurrent = second; 4572 while (secondCurrent != null) { 4573 if (seen.contains(secondCurrent)) { 4574 seen.clear(); 4575 return secondCurrent; 4576 } 4577 ViewParent secondCurrentParent = secondCurrent.mParent; 4578 if (secondCurrentParent instanceof View) { 4579 secondCurrent = (View) secondCurrentParent; 4580 } else { 4581 secondCurrent = null; 4582 } 4583 } 4584 seen.clear(); 4585 } 4586 return null; 4587 } 4588 4589 void checkThread() { 4590 if (mThread != Thread.currentThread()) { 4591 throw new CalledFromWrongThreadException( 4592 "Only the original thread that created a view hierarchy can touch its views."); 4593 } 4594 } 4595 4596 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4597 // ViewAncestor never intercepts touch event, so this can be a no-op 4598 } 4599 4600 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4601 boolean immediate) { 4602 return scrollToRectOrFocus(rectangle, immediate); 4603 } 4604 4605 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4606 // Do nothing. 4607 } 4608 4609 class TakenSurfaceHolder extends BaseSurfaceHolder { 4610 @Override 4611 public boolean onAllowLockCanvas() { 4612 return mDrawingAllowed; 4613 } 4614 4615 @Override 4616 public void onRelayoutContainer() { 4617 // Not currently interesting -- from changing between fixed and layout size. 4618 } 4619 4620 public void setFormat(int format) { 4621 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4622 } 4623 4624 public void setType(int type) { 4625 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4626 } 4627 4628 @Override 4629 public void onUpdateSurface() { 4630 // We take care of format and type changes on our own. 4631 throw new IllegalStateException("Shouldn't be here"); 4632 } 4633 4634 public boolean isCreating() { 4635 return mIsCreating; 4636 } 4637 4638 @Override 4639 public void setFixedSize(int width, int height) { 4640 throw new UnsupportedOperationException( 4641 "Currently only support sizing from layout"); 4642 } 4643 4644 public void setKeepScreenOn(boolean screenOn) { 4645 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4646 } 4647 } 4648 4649 static class InputMethodCallback extends IInputMethodCallback.Stub { 4650 private WeakReference<ViewRootImpl> mViewAncestor; 4651 4652 public InputMethodCallback(ViewRootImpl viewAncestor) { 4653 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4654 } 4655 4656 public void finishedEvent(int seq, boolean handled) { 4657 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4658 if (viewAncestor != null) { 4659 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4660 } 4661 } 4662 4663 public void sessionCreated(IInputMethodSession session) { 4664 // Stub -- not for use in the client. 4665 } 4666 } 4667 4668 static class W extends IWindow.Stub { 4669 private final WeakReference<ViewRootImpl> mViewAncestor; 4670 4671 W(ViewRootImpl viewAncestor) { 4672 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4673 } 4674 4675 public void resized(int w, int h, Rect systemInsets, Rect contentInsets, 4676 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4677 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4678 if (viewAncestor != null) { 4679 viewAncestor.dispatchResized(w, h, contentInsets, visibleInsets, reportDraw, 4680 newConfig); 4681 } 4682 } 4683 4684 public void dispatchAppVisibility(boolean visible) { 4685 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4686 if (viewAncestor != null) { 4687 viewAncestor.dispatchAppVisibility(visible); 4688 } 4689 } 4690 4691 public void dispatchScreenState(boolean on) { 4692 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4693 if (viewAncestor != null) { 4694 viewAncestor.dispatchScreenStateChange(on); 4695 } 4696 } 4697 4698 public void dispatchGetNewSurface() { 4699 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4700 if (viewAncestor != null) { 4701 viewAncestor.dispatchGetNewSurface(); 4702 } 4703 } 4704 4705 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4706 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4707 if (viewAncestor != null) { 4708 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4709 } 4710 } 4711 4712 private static int checkCallingPermission(String permission) { 4713 try { 4714 return ActivityManagerNative.getDefault().checkPermission( 4715 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4716 } catch (RemoteException e) { 4717 return PackageManager.PERMISSION_DENIED; 4718 } 4719 } 4720 4721 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4722 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4723 if (viewAncestor != null) { 4724 final View view = viewAncestor.mView; 4725 if (view != null) { 4726 if (checkCallingPermission(Manifest.permission.DUMP) != 4727 PackageManager.PERMISSION_GRANTED) { 4728 throw new SecurityException("Insufficient permissions to invoke" 4729 + " executeCommand() from pid=" + Binder.getCallingPid() 4730 + ", uid=" + Binder.getCallingUid()); 4731 } 4732 4733 OutputStream clientStream = null; 4734 try { 4735 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4736 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4737 } catch (IOException e) { 4738 e.printStackTrace(); 4739 } finally { 4740 if (clientStream != null) { 4741 try { 4742 clientStream.close(); 4743 } catch (IOException e) { 4744 e.printStackTrace(); 4745 } 4746 } 4747 } 4748 } 4749 } 4750 } 4751 4752 public void closeSystemDialogs(String reason) { 4753 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4754 if (viewAncestor != null) { 4755 viewAncestor.dispatchCloseSystemDialogs(reason); 4756 } 4757 } 4758 4759 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4760 boolean sync) { 4761 if (sync) { 4762 try { 4763 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4764 } catch (RemoteException e) { 4765 } 4766 } 4767 } 4768 4769 public void dispatchWallpaperCommand(String action, int x, int y, 4770 int z, Bundle extras, boolean sync) { 4771 if (sync) { 4772 try { 4773 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4774 } catch (RemoteException e) { 4775 } 4776 } 4777 } 4778 4779 /* Drag/drop */ 4780 public void dispatchDragEvent(DragEvent event) { 4781 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4782 if (viewAncestor != null) { 4783 viewAncestor.dispatchDragEvent(event); 4784 } 4785 } 4786 4787 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4788 int localValue, int localChanges) { 4789 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4790 if (viewAncestor != null) { 4791 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4792 localValue, localChanges); 4793 } 4794 } 4795 4796 public void doneAnimating() { 4797 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4798 if (viewAncestor != null) { 4799 viewAncestor.dispatchDoneAnimating(); 4800 } 4801 } 4802 } 4803 4804 /** 4805 * Maintains state information for a single trackball axis, generating 4806 * discrete (DPAD) movements based on raw trackball motion. 4807 */ 4808 static final class TrackballAxis { 4809 /** 4810 * The maximum amount of acceleration we will apply. 4811 */ 4812 static final float MAX_ACCELERATION = 20; 4813 4814 /** 4815 * The maximum amount of time (in milliseconds) between events in order 4816 * for us to consider the user to be doing fast trackball movements, 4817 * and thus apply an acceleration. 4818 */ 4819 static final long FAST_MOVE_TIME = 150; 4820 4821 /** 4822 * Scaling factor to the time (in milliseconds) between events to how 4823 * much to multiple/divide the current acceleration. When movement 4824 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4825 * FAST_MOVE_TIME it divides it. 4826 */ 4827 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4828 4829 float position; 4830 float absPosition; 4831 float acceleration = 1; 4832 long lastMoveTime = 0; 4833 int step; 4834 int dir; 4835 int nonAccelMovement; 4836 4837 void reset(int _step) { 4838 position = 0; 4839 acceleration = 1; 4840 lastMoveTime = 0; 4841 step = _step; 4842 dir = 0; 4843 } 4844 4845 /** 4846 * Add trackball movement into the state. If the direction of movement 4847 * has been reversed, the state is reset before adding the 4848 * movement (so that you don't have to compensate for any previously 4849 * collected movement before see the result of the movement in the 4850 * new direction). 4851 * 4852 * @return Returns the absolute value of the amount of movement 4853 * collected so far. 4854 */ 4855 float collect(float off, long time, String axis) { 4856 long normTime; 4857 if (off > 0) { 4858 normTime = (long)(off * FAST_MOVE_TIME); 4859 if (dir < 0) { 4860 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4861 position = 0; 4862 step = 0; 4863 acceleration = 1; 4864 lastMoveTime = 0; 4865 } 4866 dir = 1; 4867 } else if (off < 0) { 4868 normTime = (long)((-off) * FAST_MOVE_TIME); 4869 if (dir > 0) { 4870 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4871 position = 0; 4872 step = 0; 4873 acceleration = 1; 4874 lastMoveTime = 0; 4875 } 4876 dir = -1; 4877 } else { 4878 normTime = 0; 4879 } 4880 4881 // The number of milliseconds between each movement that is 4882 // considered "normal" and will not result in any acceleration 4883 // or deceleration, scaled by the offset we have here. 4884 if (normTime > 0) { 4885 long delta = time - lastMoveTime; 4886 lastMoveTime = time; 4887 float acc = acceleration; 4888 if (delta < normTime) { 4889 // The user is scrolling rapidly, so increase acceleration. 4890 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4891 if (scale > 1) acc *= scale; 4892 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4893 + off + " normTime=" + normTime + " delta=" + delta 4894 + " scale=" + scale + " acc=" + acc); 4895 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4896 } else { 4897 // The user is scrolling slowly, so decrease acceleration. 4898 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4899 if (scale > 1) acc /= scale; 4900 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4901 + off + " normTime=" + normTime + " delta=" + delta 4902 + " scale=" + scale + " acc=" + acc); 4903 acceleration = acc > 1 ? acc : 1; 4904 } 4905 } 4906 position += off; 4907 return (absPosition = Math.abs(position)); 4908 } 4909 4910 /** 4911 * Generate the number of discrete movement events appropriate for 4912 * the currently collected trackball movement. 4913 * 4914 * @param precision The minimum movement required to generate the 4915 * first discrete movement. 4916 * 4917 * @return Returns the number of discrete movements, either positive 4918 * or negative, or 0 if there is not enough trackball movement yet 4919 * for a discrete movement. 4920 */ 4921 int generate(float precision) { 4922 int movement = 0; 4923 nonAccelMovement = 0; 4924 do { 4925 final int dir = position >= 0 ? 1 : -1; 4926 switch (step) { 4927 // If we are going to execute the first step, then we want 4928 // to do this as soon as possible instead of waiting for 4929 // a full movement, in order to make things look responsive. 4930 case 0: 4931 if (absPosition < precision) { 4932 return movement; 4933 } 4934 movement += dir; 4935 nonAccelMovement += dir; 4936 step = 1; 4937 break; 4938 // If we have generated the first movement, then we need 4939 // to wait for the second complete trackball motion before 4940 // generating the second discrete movement. 4941 case 1: 4942 if (absPosition < 2) { 4943 return movement; 4944 } 4945 movement += dir; 4946 nonAccelMovement += dir; 4947 position += dir > 0 ? -2 : 2; 4948 absPosition = Math.abs(position); 4949 step = 2; 4950 break; 4951 // After the first two, we generate discrete movements 4952 // consistently with the trackball, applying an acceleration 4953 // if the trackball is moving quickly. This is a simple 4954 // acceleration on top of what we already compute based 4955 // on how quickly the wheel is being turned, to apply 4956 // a longer increasing acceleration to continuous movement 4957 // in one direction. 4958 default: 4959 if (absPosition < 1) { 4960 return movement; 4961 } 4962 movement += dir; 4963 position += dir >= 0 ? -1 : 1; 4964 absPosition = Math.abs(position); 4965 float acc = acceleration; 4966 acc *= 1.1f; 4967 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4968 break; 4969 } 4970 } while (true); 4971 } 4972 } 4973 4974 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4975 public CalledFromWrongThreadException(String msg) { 4976 super(msg); 4977 } 4978 } 4979 4980 private SurfaceHolder mHolder = new SurfaceHolder() { 4981 // we only need a SurfaceHolder for opengl. it would be nice 4982 // to implement everything else though, especially the callback 4983 // support (opengl doesn't make use of it right now, but eventually 4984 // will). 4985 public Surface getSurface() { 4986 return mSurface; 4987 } 4988 4989 public boolean isCreating() { 4990 return false; 4991 } 4992 4993 public void addCallback(Callback callback) { 4994 } 4995 4996 public void removeCallback(Callback callback) { 4997 } 4998 4999 public void setFixedSize(int width, int height) { 5000 } 5001 5002 public void setSizeFromLayout() { 5003 } 5004 5005 public void setFormat(int format) { 5006 } 5007 5008 public void setType(int type) { 5009 } 5010 5011 public void setKeepScreenOn(boolean screenOn) { 5012 } 5013 5014 public Canvas lockCanvas() { 5015 return null; 5016 } 5017 5018 public Canvas lockCanvas(Rect dirty) { 5019 return null; 5020 } 5021 5022 public void unlockCanvasAndPost(Canvas canvas) { 5023 } 5024 public Rect getSurfaceFrame() { 5025 return null; 5026 } 5027 }; 5028 5029 static RunQueue getRunQueue() { 5030 RunQueue rq = sRunQueues.get(); 5031 if (rq != null) { 5032 return rq; 5033 } 5034 rq = new RunQueue(); 5035 sRunQueues.set(rq); 5036 return rq; 5037 } 5038 5039 /** 5040 * The run queue is used to enqueue pending work from Views when no Handler is 5041 * attached. The work is executed during the next call to performTraversals on 5042 * the thread. 5043 * @hide 5044 */ 5045 static final class RunQueue { 5046 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5047 5048 void post(Runnable action) { 5049 postDelayed(action, 0); 5050 } 5051 5052 void postDelayed(Runnable action, long delayMillis) { 5053 HandlerAction handlerAction = new HandlerAction(); 5054 handlerAction.action = action; 5055 handlerAction.delay = delayMillis; 5056 5057 synchronized (mActions) { 5058 mActions.add(handlerAction); 5059 } 5060 } 5061 5062 void removeCallbacks(Runnable action) { 5063 final HandlerAction handlerAction = new HandlerAction(); 5064 handlerAction.action = action; 5065 5066 synchronized (mActions) { 5067 final ArrayList<HandlerAction> actions = mActions; 5068 5069 while (actions.remove(handlerAction)) { 5070 // Keep going 5071 } 5072 } 5073 } 5074 5075 void executeActions(Handler handler) { 5076 synchronized (mActions) { 5077 final ArrayList<HandlerAction> actions = mActions; 5078 final int count = actions.size(); 5079 5080 for (int i = 0; i < count; i++) { 5081 final HandlerAction handlerAction = actions.get(i); 5082 handler.postDelayed(handlerAction.action, handlerAction.delay); 5083 } 5084 5085 actions.clear(); 5086 } 5087 } 5088 5089 private static class HandlerAction { 5090 Runnable action; 5091 long delay; 5092 5093 @Override 5094 public boolean equals(Object o) { 5095 if (this == o) return true; 5096 if (o == null || getClass() != o.getClass()) return false; 5097 5098 HandlerAction that = (HandlerAction) o; 5099 return !(action != null ? !action.equals(that.action) : that.action != null); 5100 5101 } 5102 5103 @Override 5104 public int hashCode() { 5105 int result = action != null ? action.hashCode() : 0; 5106 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5107 return result; 5108 } 5109 } 5110 } 5111 5112 /** 5113 * Class for managing the accessibility interaction connection 5114 * based on the global accessibility state. 5115 */ 5116 final class AccessibilityInteractionConnectionManager 5117 implements AccessibilityStateChangeListener { 5118 public void onAccessibilityStateChanged(boolean enabled) { 5119 if (enabled) { 5120 ensureConnection(); 5121 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5122 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5123 View focusedView = mView.findFocus(); 5124 if (focusedView != null && focusedView != mView) { 5125 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5126 } 5127 } 5128 } else { 5129 ensureNoConnection(); 5130 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5131 } 5132 } 5133 5134 public void ensureConnection() { 5135 if (mAttachInfo != null) { 5136 final boolean registered = 5137 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5138 if (!registered) { 5139 mAttachInfo.mAccessibilityWindowId = 5140 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5141 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5142 } 5143 } 5144 } 5145 5146 public void ensureNoConnection() { 5147 final boolean registered = 5148 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5149 if (registered) { 5150 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5151 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5152 } 5153 } 5154 } 5155 5156 /** 5157 * This class is an interface this ViewAncestor provides to the 5158 * AccessibilityManagerService to the latter can interact with 5159 * the view hierarchy in this ViewAncestor. 5160 */ 5161 static final class AccessibilityInteractionConnection 5162 extends IAccessibilityInteractionConnection.Stub { 5163 private final WeakReference<ViewRootImpl> mViewRootImpl; 5164 5165 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5166 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5167 } 5168 5169 @Override 5170 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5171 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5172 int flags, int interrogatingPid, long interrogatingTid) { 5173 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5174 if (viewRootImpl != null && viewRootImpl.mView != null) { 5175 viewRootImpl.getAccessibilityInteractionController() 5176 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5177 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5178 } else { 5179 // We cannot make the call and notify the caller so it does not wait. 5180 try { 5181 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5182 } catch (RemoteException re) { 5183 /* best effort - ignore */ 5184 } 5185 } 5186 } 5187 5188 @Override 5189 public void performAccessibilityAction(long accessibilityNodeId, int action, 5190 Bundle arguments, int interactionId, 5191 IAccessibilityInteractionConnectionCallback callback, int flags, 5192 int interogatingPid, long interrogatingTid) { 5193 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5194 if (viewRootImpl != null && viewRootImpl.mView != null) { 5195 viewRootImpl.getAccessibilityInteractionController() 5196 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5197 interactionId, callback, flags, interogatingPid, interrogatingTid); 5198 } else { 5199 // We cannot make the call and notify the caller so it does not wait. 5200 try { 5201 callback.setPerformAccessibilityActionResult(false, interactionId); 5202 } catch (RemoteException re) { 5203 /* best effort - ignore */ 5204 } 5205 } 5206 } 5207 5208 @Override 5209 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5210 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5211 int flags, int interrogatingPid, long interrogatingTid) { 5212 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5213 if (viewRootImpl != null && viewRootImpl.mView != null) { 5214 viewRootImpl.getAccessibilityInteractionController() 5215 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5216 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5217 } else { 5218 // We cannot make the call and notify the caller so it does not wait. 5219 try { 5220 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5221 } catch (RemoteException re) { 5222 /* best effort - ignore */ 5223 } 5224 } 5225 } 5226 5227 @Override 5228 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5229 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5230 int flags, int interrogatingPid, long interrogatingTid) { 5231 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5232 if (viewRootImpl != null && viewRootImpl.mView != null) { 5233 viewRootImpl.getAccessibilityInteractionController() 5234 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5235 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5236 } else { 5237 // We cannot make the call and notify the caller so it does not wait. 5238 try { 5239 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5240 } catch (RemoteException re) { 5241 /* best effort - ignore */ 5242 } 5243 } 5244 } 5245 5246 @Override 5247 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5248 IAccessibilityInteractionConnectionCallback callback, int flags, 5249 int interrogatingPid, long interrogatingTid) { 5250 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5251 if (viewRootImpl != null && viewRootImpl.mView != null) { 5252 viewRootImpl.getAccessibilityInteractionController() 5253 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5254 callback, flags, interrogatingPid, interrogatingTid); 5255 } else { 5256 // We cannot make the call and notify the caller so it does not wait. 5257 try { 5258 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5259 } catch (RemoteException re) { 5260 /* best effort - ignore */ 5261 } 5262 } 5263 } 5264 5265 @Override 5266 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5267 IAccessibilityInteractionConnectionCallback callback, int flags, 5268 int interrogatingPid, long interrogatingTid) { 5269 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5270 if (viewRootImpl != null && viewRootImpl.mView != null) { 5271 viewRootImpl.getAccessibilityInteractionController() 5272 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5273 callback, flags, interrogatingPid, interrogatingTid); 5274 } else { 5275 // We cannot make the call and notify the caller so it does not wait. 5276 try { 5277 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5278 } catch (RemoteException re) { 5279 /* best effort - ignore */ 5280 } 5281 } 5282 } 5283 } 5284 5285 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5286 public View mSource; 5287 5288 public void run() { 5289 if (mSource != null) { 5290 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5291 mSource.resetAccessibilityStateChanged(); 5292 mSource = null; 5293 } 5294 } 5295 } 5296} 5297