ViewRootImpl.java revision 9d0908919a65a4f3158a8fc50aaf320dfed36278
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.Log; 59import android.util.Slog; 60import android.util.TypedValue; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityNodeInfo; 67import android.view.accessibility.AccessibilityNodeProvider; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.R; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.HashSet; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 99 private static final String TAG = "ViewRootImpl"; 100 private static final boolean DBG = false; 101 private static final boolean LOCAL_LOGV = false; 102 /** @noinspection PointlessBooleanExpression*/ 103 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 104 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 105 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 106 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 107 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 109 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 110 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_FPS = false; 112 113 private static final boolean USE_RENDER_THREAD = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static IWindowSession sWindowSession; 131 132 static final Object mStaticInit = new Object(); 133 static boolean mInitialized = false; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 private static boolean sUseRenderThread = false; 144 private static boolean sRenderThreadQueried = false; 145 private static final Object[] sRenderThreadQueryLock = new Object[0]; 146 147 long mLastTrackballTime = 0; 148 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 149 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 View mFocusedView; 175 View mRealFocusedView; // this is not set to null in touch mode 176 View mOldFocusedView; 177 178 View mAccessibilityFocusedHost; 179 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 180 181 int mViewVisibility; 182 boolean mAppVisible = true; 183 int mOrigWindowType = -1; 184 185 // Set to true if the owner of this window is in the stopped state, 186 // so the window should no longer be active. 187 boolean mStopped = false; 188 189 boolean mLastInCompatMode = false; 190 191 SurfaceHolder.Callback2 mSurfaceHolderCallback; 192 BaseSurfaceHolder mSurfaceHolder; 193 boolean mIsCreating; 194 boolean mDrawingAllowed; 195 196 final Region mTransparentRegion; 197 final Region mPreviousTransparentRegion; 198 199 int mWidth; 200 int mHeight; 201 Rect mDirty; 202 final Rect mCurrentDirty = new Rect(); 203 final Rect mPreviousDirty = new Rect(); 204 boolean mIsAnimating; 205 206 CompatibilityInfo.Translator mTranslator; 207 208 final View.AttachInfo mAttachInfo; 209 InputChannel mInputChannel; 210 InputQueue.Callback mInputQueueCallback; 211 InputQueue mInputQueue; 212 FallbackEventHandler mFallbackEventHandler; 213 Choreographer mChoreographer; 214 215 final Rect mTempRect; // used in the transaction to not thrash the heap. 216 final Rect mVisRect; // used to retrieve visible rect of focused view. 217 218 boolean mTraversalScheduled; 219 int mTraversalBarrier; 220 boolean mWillDrawSoon; 221 boolean mFitSystemWindowsRequested; 222 boolean mLayoutRequested; 223 boolean mFirst; 224 boolean mReportNextDraw; 225 boolean mFullRedrawNeeded; 226 boolean mNewSurfaceNeeded; 227 boolean mHasHadWindowFocus; 228 boolean mLastWasImTarget; 229 boolean mWindowsAnimating; 230 boolean mIsDrawing; 231 int mLastSystemUiVisibility; 232 int mClientWindowLayoutFlags; 233 234 // Pool of queued input events. 235 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 236 private QueuedInputEvent mQueuedInputEventPool; 237 private int mQueuedInputEventPoolSize; 238 239 // Input event queue. 240 QueuedInputEvent mFirstPendingInputEvent; 241 QueuedInputEvent mCurrentInputEvent; 242 boolean mProcessInputEventsScheduled; 243 244 boolean mWindowAttributesChanged = false; 245 int mWindowAttributesChangesFlag = 0; 246 247 // These can be accessed by any thread, must be protected with a lock. 248 // Surface can never be reassigned or cleared (use Surface.clear()). 249 private final Surface mSurface = new Surface(); 250 251 boolean mAdded; 252 boolean mAddedTouchMode; 253 254 CompatibilityInfoHolder mCompatibilityInfo; 255 256 /*package*/ int mAddNesting; 257 258 // These are accessed by multiple threads. 259 final Rect mWinFrame; // frame given by window manager. 260 261 final Rect mPendingVisibleInsets = new Rect(); 262 final Rect mPendingContentInsets = new Rect(); 263 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 264 = new ViewTreeObserver.InternalInsetsInfo(); 265 266 final Rect mFitSystemWindowsInsets = new Rect(); 267 268 final Configuration mLastConfiguration = new Configuration(); 269 final Configuration mPendingConfiguration = new Configuration(); 270 271 class ResizedInfo { 272 Rect contentInsets; 273 Rect visibleInsets; 274 Configuration newConfig; 275 } 276 277 boolean mScrollMayChange; 278 int mSoftInputMode; 279 View mLastScrolledFocus; 280 int mScrollY; 281 int mCurScrollY; 282 Scroller mScroller; 283 HardwareLayer mResizeBuffer; 284 long mResizeBufferStartTime; 285 int mResizeBufferDuration; 286 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 287 private ArrayList<LayoutTransition> mPendingTransitions; 288 289 final ViewConfiguration mViewConfiguration; 290 291 /* Drag/drop */ 292 ClipDescription mDragDescription; 293 View mCurrentDragView; 294 volatile Object mLocalDragState; 295 final PointF mDragPoint = new PointF(); 296 final PointF mLastTouchPoint = new PointF(); 297 298 private boolean mProfileRendering; 299 private Thread mRenderProfiler; 300 private volatile boolean mRenderProfilingEnabled; 301 302 // Variables to track frames per second, enabled via DEBUG_FPS flag 303 private long mFpsStartTime = -1; 304 private long mFpsPrevTime = -1; 305 private int mFpsNumFrames; 306 307 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 308 309 /** 310 * see {@link #playSoundEffect(int)} 311 */ 312 AudioManager mAudioManager; 313 314 final AccessibilityManager mAccessibilityManager; 315 316 AccessibilityInteractionController mAccessibilityInteractionController; 317 318 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 319 320 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 321 322 HashSet<View> mTempHashSet; 323 324 private final int mDensity; 325 326 /** 327 * Consistency verifier for debugging purposes. 328 */ 329 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 330 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 331 new InputEventConsistencyVerifier(this, 0) : null; 332 333 public static IWindowSession getWindowSession(Looper mainLooper) { 334 synchronized (mStaticInit) { 335 if (!mInitialized) { 336 try { 337 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 338 IWindowManager windowManager = Display.getWindowManager(); 339 sWindowSession = windowManager.openSession( 340 imm.getClient(), imm.getInputContext()); 341 float animatorScale = windowManager.getAnimationScale(2); 342 ValueAnimator.setDurationScale(animatorScale); 343 mInitialized = true; 344 } catch (RemoteException e) { 345 } 346 } 347 return sWindowSession; 348 } 349 } 350 351 static final class SystemUiVisibilityInfo { 352 int seq; 353 int globalVisibility; 354 int localValue; 355 int localChanges; 356 } 357 358 public ViewRootImpl(Context context) { 359 super(); 360 361 if (MEASURE_LATENCY) { 362 if (lt == null) { 363 lt = new LatencyTimer(100, 1000); 364 } 365 } 366 367 // Initialize the statics when this class is first instantiated. This is 368 // done here instead of in the static block because Zygote does not 369 // allow the spawning of threads. 370 getWindowSession(context.getMainLooper()); 371 372 mThread = Thread.currentThread(); 373 mLocation = new WindowLeaked(null); 374 mLocation.fillInStackTrace(); 375 mWidth = -1; 376 mHeight = -1; 377 mDirty = new Rect(); 378 mTempRect = new Rect(); 379 mVisRect = new Rect(); 380 mWinFrame = new Rect(); 381 mWindow = new W(this); 382 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 383 mInputMethodCallback = new InputMethodCallback(this); 384 mViewVisibility = View.GONE; 385 mTransparentRegion = new Region(); 386 mPreviousTransparentRegion = new Region(); 387 mFirst = true; // true for the first time the view is added 388 mAdded = false; 389 mAccessibilityManager = AccessibilityManager.getInstance(context); 390 mAccessibilityInteractionConnectionManager = 391 new AccessibilityInteractionConnectionManager(); 392 mAccessibilityManager.addAccessibilityStateChangeListener( 393 mAccessibilityInteractionConnectionManager); 394 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 395 mViewConfiguration = ViewConfiguration.get(context); 396 mDensity = context.getResources().getDisplayMetrics().densityDpi; 397 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 398 mProfileRendering = Boolean.parseBoolean( 399 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 400 mChoreographer = Choreographer.getInstance(); 401 402 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 403 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 404 loadSystemProperties(); 405 } 406 407 /** 408 * @return True if the application requests the use of a separate render thread, 409 * false otherwise 410 */ 411 private static boolean isRenderThreadRequested(Context context) { 412 if (USE_RENDER_THREAD) { 413 synchronized (sRenderThreadQueryLock) { 414 if (!sRenderThreadQueried) { 415 final PackageManager packageManager = context.getPackageManager(); 416 final String packageName = context.getApplicationInfo().packageName; 417 try { 418 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 419 PackageManager.GET_META_DATA); 420 if (applicationInfo.metaData != null) { 421 sUseRenderThread = applicationInfo.metaData.getBoolean( 422 "android.graphics.renderThread", false); 423 } 424 } catch (PackageManager.NameNotFoundException e) { 425 } finally { 426 sRenderThreadQueried = true; 427 } 428 } 429 return sUseRenderThread; 430 } 431 } else { 432 return false; 433 } 434 } 435 436 public static void addFirstDrawHandler(Runnable callback) { 437 synchronized (sFirstDrawHandlers) { 438 if (!sFirstDrawComplete) { 439 sFirstDrawHandlers.add(callback); 440 } 441 } 442 } 443 444 public static void addConfigCallback(ComponentCallbacks callback) { 445 synchronized (sConfigCallbacks) { 446 sConfigCallbacks.add(callback); 447 } 448 } 449 450 // FIXME for perf testing only 451 private boolean mProfile = false; 452 453 /** 454 * Call this to profile the next traversal call. 455 * FIXME for perf testing only. Remove eventually 456 */ 457 public void profile() { 458 mProfile = true; 459 } 460 461 /** 462 * Indicates whether we are in touch mode. Calling this method triggers an IPC 463 * call and should be avoided whenever possible. 464 * 465 * @return True, if the device is in touch mode, false otherwise. 466 * 467 * @hide 468 */ 469 static boolean isInTouchMode() { 470 if (mInitialized) { 471 try { 472 return sWindowSession.getInTouchMode(); 473 } catch (RemoteException e) { 474 } 475 } 476 return false; 477 } 478 479 /** 480 * We have one child 481 */ 482 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 483 synchronized (this) { 484 if (mView == null) { 485 mView = view; 486 mFallbackEventHandler.setView(view); 487 mWindowAttributes.copyFrom(attrs); 488 attrs = mWindowAttributes; 489 // Keep track of the actual window flags supplied by the client. 490 mClientWindowLayoutFlags = attrs.flags; 491 492 setAccessibilityFocusedHost(null); 493 494 if (view instanceof RootViewSurfaceTaker) { 495 mSurfaceHolderCallback = 496 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 497 if (mSurfaceHolderCallback != null) { 498 mSurfaceHolder = new TakenSurfaceHolder(); 499 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 500 } 501 } 502 503 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 504 mTranslator = compatibilityInfo.getTranslator(); 505 506 // If the application owns the surface, don't enable hardware acceleration 507 if (mSurfaceHolder == null) { 508 enableHardwareAcceleration(mView.getContext(), attrs); 509 } 510 511 boolean restore = false; 512 if (mTranslator != null) { 513 mSurface.setCompatibilityTranslator(mTranslator); 514 restore = true; 515 attrs.backup(); 516 mTranslator.translateWindowLayout(attrs); 517 } 518 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 519 520 if (!compatibilityInfo.supportsScreen()) { 521 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 522 mLastInCompatMode = true; 523 } 524 525 mSoftInputMode = attrs.softInputMode; 526 mWindowAttributesChanged = true; 527 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 528 mAttachInfo.mRootView = view; 529 mAttachInfo.mScalingRequired = mTranslator != null; 530 mAttachInfo.mApplicationScale = 531 mTranslator == null ? 1.0f : mTranslator.applicationScale; 532 if (panelParentView != null) { 533 mAttachInfo.mPanelParentWindowToken 534 = panelParentView.getApplicationWindowToken(); 535 } 536 mAdded = true; 537 int res; /* = WindowManagerImpl.ADD_OKAY; */ 538 539 // Schedule the first layout -before- adding to the window 540 // manager, to make sure we do the relayout before receiving 541 // any other events from the system. 542 requestLayout(); 543 if ((mWindowAttributes.inputFeatures 544 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 545 mInputChannel = new InputChannel(); 546 } 547 try { 548 mOrigWindowType = mWindowAttributes.type; 549 mAttachInfo.mRecomputeGlobalAttributes = true; 550 collectViewAttributes(); 551 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 552 getHostVisibility(), mAttachInfo.mContentInsets, 553 mInputChannel); 554 } catch (RemoteException e) { 555 mAdded = false; 556 mView = null; 557 mAttachInfo.mRootView = null; 558 mInputChannel = null; 559 mFallbackEventHandler.setView(null); 560 unscheduleTraversals(); 561 setAccessibilityFocusedHost(null); 562 throw new RuntimeException("Adding window failed", e); 563 } finally { 564 if (restore) { 565 attrs.restore(); 566 } 567 } 568 569 if (mTranslator != null) { 570 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 571 } 572 mPendingContentInsets.set(mAttachInfo.mContentInsets); 573 mPendingVisibleInsets.set(0, 0, 0, 0); 574 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 575 if (res < WindowManagerImpl.ADD_OKAY) { 576 mView = null; 577 mAttachInfo.mRootView = null; 578 mAdded = false; 579 mFallbackEventHandler.setView(null); 580 unscheduleTraversals(); 581 setAccessibilityFocusedHost(null); 582 switch (res) { 583 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 584 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 585 throw new WindowManagerImpl.BadTokenException( 586 "Unable to add window -- token " + attrs.token 587 + " is not valid; is your activity running?"); 588 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 589 throw new WindowManagerImpl.BadTokenException( 590 "Unable to add window -- token " + attrs.token 591 + " is not for an application"); 592 case WindowManagerImpl.ADD_APP_EXITING: 593 throw new WindowManagerImpl.BadTokenException( 594 "Unable to add window -- app for token " + attrs.token 595 + " is exiting"); 596 case WindowManagerImpl.ADD_DUPLICATE_ADD: 597 throw new WindowManagerImpl.BadTokenException( 598 "Unable to add window -- window " + mWindow 599 + " has already been added"); 600 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 601 // Silently ignore -- we would have just removed it 602 // right away, anyway. 603 return; 604 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 605 throw new WindowManagerImpl.BadTokenException( 606 "Unable to add window " + mWindow + 607 " -- another window of this type already exists"); 608 case WindowManagerImpl.ADD_PERMISSION_DENIED: 609 throw new WindowManagerImpl.BadTokenException( 610 "Unable to add window " + mWindow + 611 " -- permission denied for this window type"); 612 } 613 throw new RuntimeException( 614 "Unable to add window -- unknown error code " + res); 615 } 616 617 if (view instanceof RootViewSurfaceTaker) { 618 mInputQueueCallback = 619 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 620 } 621 if (mInputChannel != null) { 622 if (mInputQueueCallback != null) { 623 mInputQueue = new InputQueue(mInputChannel); 624 mInputQueueCallback.onInputQueueCreated(mInputQueue); 625 } else { 626 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 627 Looper.myLooper()); 628 } 629 } 630 631 view.assignParent(this); 632 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 633 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 634 635 if (mAccessibilityManager.isEnabled()) { 636 mAccessibilityInteractionConnectionManager.ensureConnection(); 637 } 638 639 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 640 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 641 } 642 } 643 } 644 } 645 646 void destroyHardwareResources() { 647 if (mAttachInfo.mHardwareRenderer != null) { 648 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 649 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 650 } 651 mAttachInfo.mHardwareRenderer.destroy(false); 652 } 653 } 654 655 void terminateHardwareResources() { 656 if (mAttachInfo.mHardwareRenderer != null) { 657 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 658 mAttachInfo.mHardwareRenderer.destroy(false); 659 } 660 } 661 662 void destroyHardwareLayers() { 663 if (mThread != Thread.currentThread()) { 664 if (mAttachInfo.mHardwareRenderer != null && 665 mAttachInfo.mHardwareRenderer.isEnabled()) { 666 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 667 } 668 } else { 669 if (mAttachInfo.mHardwareRenderer != null && 670 mAttachInfo.mHardwareRenderer.isEnabled()) { 671 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 672 } 673 } 674 } 675 676 public boolean attachFunctor(int functor) { 677 //noinspection SimplifiableIfStatement 678 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 679 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 680 } 681 return false; 682 } 683 684 public void detachFunctor(int functor) { 685 if (mAttachInfo.mHardwareRenderer != null) { 686 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 687 } 688 } 689 690 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 691 mAttachInfo.mHardwareAccelerated = false; 692 mAttachInfo.mHardwareAccelerationRequested = false; 693 694 // Don't enable hardware acceleration when the application is in compatibility mode 695 if (mTranslator != null) return; 696 697 // Try to enable hardware acceleration if requested 698 final boolean hardwareAccelerated = 699 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 700 701 if (hardwareAccelerated) { 702 if (!HardwareRenderer.isAvailable()) { 703 return; 704 } 705 706 // Persistent processes (including the system) should not do 707 // accelerated rendering on low-end devices. In that case, 708 // sRendererDisabled will be set. In addition, the system process 709 // itself should never do accelerated rendering. In that case, both 710 // sRendererDisabled and sSystemRendererDisabled are set. When 711 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 712 // can be used by code on the system process to escape that and enable 713 // HW accelerated drawing. (This is basically for the lock screen.) 714 715 final boolean fakeHwAccelerated = (attrs.privateFlags & 716 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 717 final boolean forceHwAccelerated = (attrs.privateFlags & 718 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 719 720 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 721 && forceHwAccelerated)) { 722 // Don't enable hardware acceleration when we're not on the main thread 723 if (!HardwareRenderer.sSystemRendererDisabled && 724 Looper.getMainLooper() != Looper.myLooper()) { 725 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 726 + "acceleration outside of the main thread, aborting"); 727 return; 728 } 729 730 final boolean renderThread = isRenderThreadRequested(context); 731 if (renderThread) { 732 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 733 } 734 735 if (mAttachInfo.mHardwareRenderer != null) { 736 mAttachInfo.mHardwareRenderer.destroy(true); 737 } 738 739 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 740 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 741 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 742 = mAttachInfo.mHardwareRenderer != null; 743 744 } else if (fakeHwAccelerated) { 745 // The window had wanted to use hardware acceleration, but this 746 // is not allowed in its process. By setting this flag, it can 747 // still render as if it was accelerated. This is basically for 748 // the preview windows the window manager shows for launching 749 // applications, so they will look more like the app being launched. 750 mAttachInfo.mHardwareAccelerationRequested = true; 751 } 752 } 753 } 754 755 public View getView() { 756 return mView; 757 } 758 759 final WindowLeaked getLocation() { 760 return mLocation; 761 } 762 763 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 764 synchronized (this) { 765 int oldSoftInputMode = mWindowAttributes.softInputMode; 766 // Keep track of the actual window flags supplied by the client. 767 mClientWindowLayoutFlags = attrs.flags; 768 // preserve compatible window flag if exists. 769 int compatibleWindowFlag = 770 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 771 // transfer over system UI visibility values as they carry current state. 772 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 773 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 774 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 775 mWindowAttributes.flags |= compatibleWindowFlag; 776 777 applyKeepScreenOnFlag(mWindowAttributes); 778 779 if (newView) { 780 mSoftInputMode = attrs.softInputMode; 781 requestLayout(); 782 } 783 // Don't lose the mode we last auto-computed. 784 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 785 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 786 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 787 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 788 | (oldSoftInputMode 789 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 790 } 791 mWindowAttributesChanged = true; 792 scheduleTraversals(); 793 } 794 } 795 796 void handleAppVisibility(boolean visible) { 797 if (mAppVisible != visible) { 798 mAppVisible = visible; 799 scheduleTraversals(); 800 } 801 } 802 803 void handleGetNewSurface() { 804 mNewSurfaceNeeded = true; 805 mFullRedrawNeeded = true; 806 scheduleTraversals(); 807 } 808 809 void handleScreenStateChange(boolean on) { 810 if (on != mAttachInfo.mScreenOn) { 811 mAttachInfo.mScreenOn = on; 812 if (mView != null) { 813 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 814 } 815 if (on) { 816 mFullRedrawNeeded = true; 817 scheduleTraversals(); 818 } 819 } 820 } 821 822 /** 823 * {@inheritDoc} 824 */ 825 public void requestFitSystemWindows() { 826 checkThread(); 827 mFitSystemWindowsRequested = true; 828 scheduleTraversals(); 829 } 830 831 /** 832 * {@inheritDoc} 833 */ 834 public void requestLayout() { 835 checkThread(); 836 mLayoutRequested = true; 837 scheduleTraversals(); 838 } 839 840 /** 841 * {@inheritDoc} 842 */ 843 public boolean isLayoutRequested() { 844 return mLayoutRequested; 845 } 846 847 void invalidate() { 848 mDirty.set(0, 0, mWidth, mHeight); 849 scheduleTraversals(); 850 } 851 852 void invalidateWorld(View view) { 853 view.invalidate(); 854 if (view instanceof ViewGroup) { 855 ViewGroup parent = (ViewGroup)view; 856 for (int i=0; i<parent.getChildCount(); i++) { 857 invalidateWorld(parent.getChildAt(i)); 858 } 859 } 860 } 861 862 public void invalidateChild(View child, Rect dirty) { 863 invalidateChildInParent(null, dirty); 864 } 865 866 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 867 checkThread(); 868 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 869 870 if (dirty == null) { 871 invalidate(); 872 return null; 873 } 874 875 if (mCurScrollY != 0 || mTranslator != null) { 876 mTempRect.set(dirty); 877 dirty = mTempRect; 878 if (mCurScrollY != 0) { 879 dirty.offset(0, -mCurScrollY); 880 } 881 if (mTranslator != null) { 882 mTranslator.translateRectInAppWindowToScreen(dirty); 883 } 884 if (mAttachInfo.mScalingRequired) { 885 dirty.inset(-1, -1); 886 } 887 } 888 889 final Rect localDirty = mDirty; 890 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 891 mAttachInfo.mSetIgnoreDirtyState = true; 892 mAttachInfo.mIgnoreDirtyState = true; 893 } 894 895 // Add the new dirty rect to the current one 896 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 897 // Intersect with the bounds of the window to skip 898 // updates that lie outside of the visible region 899 final float appScale = mAttachInfo.mApplicationScale; 900 localDirty.intersect(0, 0, 901 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 902 903 if (!mWillDrawSoon) { 904 scheduleTraversals(); 905 } 906 907 return null; 908 } 909 910 void setStopped(boolean stopped) { 911 if (mStopped != stopped) { 912 mStopped = stopped; 913 if (!stopped) { 914 scheduleTraversals(); 915 } 916 } 917 } 918 919 public ViewParent getParent() { 920 return null; 921 } 922 923 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 924 if (child != mView) { 925 throw new RuntimeException("child is not mine, honest!"); 926 } 927 // Note: don't apply scroll offset, because we want to know its 928 // visibility in the virtual canvas being given to the view hierarchy. 929 return r.intersect(0, 0, mWidth, mHeight); 930 } 931 932 public void bringChildToFront(View child) { 933 } 934 935 int getHostVisibility() { 936 return mAppVisible ? mView.getVisibility() : View.GONE; 937 } 938 939 void disposeResizeBuffer() { 940 if (mResizeBuffer != null) { 941 mResizeBuffer.destroy(); 942 mResizeBuffer = null; 943 } 944 } 945 946 /** 947 * Add LayoutTransition to the list of transitions to be started in the next traversal. 948 * This list will be cleared after the transitions on the list are start()'ed. These 949 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 950 * happens during the layout phase of traversal, which we want to complete before any of the 951 * animations are started (because those animations may side-effect properties that layout 952 * depends upon, like the bounding rectangles of the affected views). So we add the transition 953 * to the list and it is started just prior to starting the drawing phase of traversal. 954 * 955 * @param transition The LayoutTransition to be started on the next traversal. 956 * 957 * @hide 958 */ 959 public void requestTransitionStart(LayoutTransition transition) { 960 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 961 if (mPendingTransitions == null) { 962 mPendingTransitions = new ArrayList<LayoutTransition>(); 963 } 964 mPendingTransitions.add(transition); 965 } 966 } 967 968 void scheduleTraversals() { 969 if (!mTraversalScheduled) { 970 mTraversalScheduled = true; 971 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 972 mChoreographer.postCallback( 973 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 974 scheduleConsumeBatchedInput(); 975 } 976 } 977 978 void unscheduleTraversals() { 979 if (mTraversalScheduled) { 980 mTraversalScheduled = false; 981 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 982 mChoreographer.removeCallbacks( 983 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 984 } 985 } 986 987 void doTraversal() { 988 if (mTraversalScheduled) { 989 mTraversalScheduled = false; 990 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 991 992 if (mProfile) { 993 Debug.startMethodTracing("ViewAncestor"); 994 } 995 996 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 997 try { 998 performTraversals(); 999 } finally { 1000 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1001 } 1002 1003 if (mProfile) { 1004 Debug.stopMethodTracing(); 1005 mProfile = false; 1006 } 1007 } 1008 } 1009 1010 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1011 // Update window's global keep screen on flag: if a view has requested 1012 // that the screen be kept on, then it is always set; otherwise, it is 1013 // set to whatever the client last requested for the global state. 1014 if (mAttachInfo.mKeepScreenOn) { 1015 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1016 } else { 1017 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1018 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1019 } 1020 } 1021 1022 private boolean collectViewAttributes() { 1023 final View.AttachInfo attachInfo = mAttachInfo; 1024 if (attachInfo.mRecomputeGlobalAttributes) { 1025 //Log.i(TAG, "Computing view hierarchy attributes!"); 1026 attachInfo.mRecomputeGlobalAttributes = false; 1027 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1028 int oldVis = attachInfo.mSystemUiVisibility; 1029 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1030 attachInfo.mKeepScreenOn = false; 1031 attachInfo.mSystemUiVisibility = 0; 1032 attachInfo.mHasSystemUiListeners = false; 1033 mView.dispatchCollectViewAttributes(attachInfo, 0); 1034 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1035 if (attachInfo.mKeepScreenOn != oldScreenOn 1036 || attachInfo.mSystemUiVisibility != oldVis 1037 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1038 WindowManager.LayoutParams params = mWindowAttributes; 1039 applyKeepScreenOnFlag(params); 1040 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1041 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1042 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1043 return true; 1044 } 1045 } 1046 return false; 1047 } 1048 1049 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1050 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1051 int childWidthMeasureSpec; 1052 int childHeightMeasureSpec; 1053 boolean windowSizeMayChange = false; 1054 1055 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1056 "Measuring " + host + " in display " + desiredWindowWidth 1057 + "x" + desiredWindowHeight + "..."); 1058 1059 boolean goodMeasure = false; 1060 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1061 // On large screens, we don't want to allow dialogs to just 1062 // stretch to fill the entire width of the screen to display 1063 // one line of text. First try doing the layout at a smaller 1064 // size to see if it will fit. 1065 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1066 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1067 int baseSize = 0; 1068 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1069 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1070 } 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1072 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1073 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1074 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 goodMeasure = true; 1080 } else { 1081 // Didn't fit in that size... try expanding a bit. 1082 baseSize = (baseSize+desiredWindowWidth)/2; 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1084 + baseSize); 1085 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1086 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1088 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1089 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1090 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1091 goodMeasure = true; 1092 } 1093 } 1094 } 1095 } 1096 1097 if (!goodMeasure) { 1098 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1099 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1100 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1101 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1102 windowSizeMayChange = true; 1103 } 1104 } 1105 1106 if (DBG) { 1107 System.out.println("======================================"); 1108 System.out.println("performTraversals -- after measure"); 1109 host.debug(); 1110 } 1111 1112 return windowSizeMayChange; 1113 } 1114 1115 private void performTraversals() { 1116 // cache mView since it is used so much below... 1117 final View host = mView; 1118 1119 if (DBG) { 1120 System.out.println("======================================"); 1121 System.out.println("performTraversals"); 1122 host.debug(); 1123 } 1124 1125 if (host == null || !mAdded) 1126 return; 1127 1128 mWillDrawSoon = true; 1129 boolean windowSizeMayChange = false; 1130 boolean newSurface = false; 1131 boolean surfaceChanged = false; 1132 WindowManager.LayoutParams lp = mWindowAttributes; 1133 1134 int desiredWindowWidth; 1135 int desiredWindowHeight; 1136 1137 final View.AttachInfo attachInfo = mAttachInfo; 1138 1139 final int viewVisibility = getHostVisibility(); 1140 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1141 || mNewSurfaceNeeded; 1142 1143 WindowManager.LayoutParams params = null; 1144 if (mWindowAttributesChanged) { 1145 mWindowAttributesChanged = false; 1146 surfaceChanged = true; 1147 params = lp; 1148 } 1149 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1150 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1151 params = lp; 1152 mFullRedrawNeeded = true; 1153 mLayoutRequested = true; 1154 if (mLastInCompatMode) { 1155 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1156 mLastInCompatMode = false; 1157 } else { 1158 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1159 mLastInCompatMode = true; 1160 } 1161 } 1162 1163 mWindowAttributesChangesFlag = 0; 1164 1165 Rect frame = mWinFrame; 1166 if (mFirst) { 1167 mFullRedrawNeeded = true; 1168 mLayoutRequested = true; 1169 1170 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1171 // NOTE -- system code, won't try to do compat mode. 1172 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1173 Point size = new Point(); 1174 disp.getRealSize(size); 1175 desiredWindowWidth = size.x; 1176 desiredWindowHeight = size.y; 1177 } else { 1178 DisplayMetrics packageMetrics = 1179 mView.getContext().getResources().getDisplayMetrics(); 1180 desiredWindowWidth = packageMetrics.widthPixels; 1181 desiredWindowHeight = packageMetrics.heightPixels; 1182 } 1183 1184 // For the very first time, tell the view hierarchy that it 1185 // is attached to the window. Note that at this point the surface 1186 // object is not initialized to its backing store, but soon it 1187 // will be (assuming the window is visible). 1188 attachInfo.mSurface = mSurface; 1189 // We used to use the following condition to choose 32 bits drawing caches: 1190 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1191 // However, windows are now always 32 bits by default, so choose 32 bits 1192 attachInfo.mUse32BitDrawingCache = true; 1193 attachInfo.mHasWindowFocus = false; 1194 attachInfo.mWindowVisibility = viewVisibility; 1195 attachInfo.mRecomputeGlobalAttributes = false; 1196 viewVisibilityChanged = false; 1197 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1198 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1199 host.dispatchAttachedToWindow(attachInfo, 0); 1200 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1201 host.fitSystemWindows(mFitSystemWindowsInsets); 1202 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1203 1204 } else { 1205 desiredWindowWidth = frame.width(); 1206 desiredWindowHeight = frame.height(); 1207 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1208 if (DEBUG_ORIENTATION) Log.v(TAG, 1209 "View " + host + " resized to: " + frame); 1210 mFullRedrawNeeded = true; 1211 mLayoutRequested = true; 1212 windowSizeMayChange = true; 1213 } 1214 } 1215 1216 if (viewVisibilityChanged) { 1217 attachInfo.mWindowVisibility = viewVisibility; 1218 host.dispatchWindowVisibilityChanged(viewVisibility); 1219 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1220 destroyHardwareResources(); 1221 } 1222 if (viewVisibility == View.GONE) { 1223 // After making a window gone, we will count it as being 1224 // shown for the first time the next time it gets focus. 1225 mHasHadWindowFocus = false; 1226 } 1227 } 1228 1229 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1230 getRunQueue().executeActions(attachInfo.mHandler); 1231 1232 boolean insetsChanged = false; 1233 1234 boolean layoutRequested = mLayoutRequested && !mStopped; 1235 if (layoutRequested) { 1236 1237 final Resources res = mView.getContext().getResources(); 1238 1239 if (mFirst) { 1240 // make sure touch mode code executes by setting cached value 1241 // to opposite of the added touch mode. 1242 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1243 ensureTouchModeLocally(mAddedTouchMode); 1244 } else { 1245 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1246 insetsChanged = true; 1247 } 1248 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1249 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1250 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1251 + mAttachInfo.mVisibleInsets); 1252 } 1253 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1254 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1255 windowSizeMayChange = true; 1256 1257 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1258 // NOTE -- system code, won't try to do compat mode. 1259 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1260 Point size = new Point(); 1261 disp.getRealSize(size); 1262 desiredWindowWidth = size.x; 1263 desiredWindowHeight = size.y; 1264 } else { 1265 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1266 desiredWindowWidth = packageMetrics.widthPixels; 1267 desiredWindowHeight = packageMetrics.heightPixels; 1268 } 1269 } 1270 } 1271 1272 // Ask host how big it wants to be 1273 windowSizeMayChange |= measureHierarchy(host, lp, res, 1274 desiredWindowWidth, desiredWindowHeight); 1275 } 1276 1277 if (collectViewAttributes()) { 1278 params = lp; 1279 } 1280 if (attachInfo.mForceReportNewAttributes) { 1281 attachInfo.mForceReportNewAttributes = false; 1282 params = lp; 1283 } 1284 1285 if (mFirst || attachInfo.mViewVisibilityChanged) { 1286 attachInfo.mViewVisibilityChanged = false; 1287 int resizeMode = mSoftInputMode & 1288 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1289 // If we are in auto resize mode, then we need to determine 1290 // what mode to use now. 1291 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1292 final int N = attachInfo.mScrollContainers.size(); 1293 for (int i=0; i<N; i++) { 1294 if (attachInfo.mScrollContainers.get(i).isShown()) { 1295 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1296 } 1297 } 1298 if (resizeMode == 0) { 1299 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1300 } 1301 if ((lp.softInputMode & 1302 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1303 lp.softInputMode = (lp.softInputMode & 1304 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1305 resizeMode; 1306 params = lp; 1307 } 1308 } 1309 } 1310 1311 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1312 if (!PixelFormat.formatHasAlpha(params.format)) { 1313 params.format = PixelFormat.TRANSLUCENT; 1314 } 1315 } 1316 1317 if (mFitSystemWindowsRequested) { 1318 mFitSystemWindowsRequested = false; 1319 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1320 host.fitSystemWindows(mFitSystemWindowsInsets); 1321 if (mLayoutRequested) { 1322 // Short-circuit catching a new layout request here, so 1323 // we don't need to go through two layout passes when things 1324 // change due to fitting system windows, which can happen a lot. 1325 windowSizeMayChange |= measureHierarchy(host, lp, 1326 mView.getContext().getResources(), 1327 desiredWindowWidth, desiredWindowHeight); 1328 } 1329 } 1330 1331 if (layoutRequested) { 1332 // Clear this now, so that if anything requests a layout in the 1333 // rest of this function we will catch it and re-run a full 1334 // layout pass. 1335 mLayoutRequested = false; 1336 } 1337 1338 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1339 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1340 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1341 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1342 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1343 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1344 1345 final boolean computesInternalInsets = 1346 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1347 1348 boolean insetsPending = false; 1349 int relayoutResult = 0; 1350 1351 if (mFirst || windowShouldResize || insetsChanged || 1352 viewVisibilityChanged || params != null) { 1353 1354 if (viewVisibility == View.VISIBLE) { 1355 // If this window is giving internal insets to the window 1356 // manager, and it is being added or changing its visibility, 1357 // then we want to first give the window manager "fake" 1358 // insets to cause it to effectively ignore the content of 1359 // the window during layout. This avoids it briefly causing 1360 // other windows to resize/move based on the raw frame of the 1361 // window, waiting until we can finish laying out this window 1362 // and get back to the window manager with the ultimately 1363 // computed insets. 1364 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1365 } 1366 1367 if (mSurfaceHolder != null) { 1368 mSurfaceHolder.mSurfaceLock.lock(); 1369 mDrawingAllowed = true; 1370 } 1371 1372 boolean hwInitialized = false; 1373 boolean contentInsetsChanged = false; 1374 boolean visibleInsetsChanged; 1375 boolean hadSurface = mSurface.isValid(); 1376 1377 try { 1378 if (DEBUG_LAYOUT) { 1379 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1380 host.getMeasuredHeight() + ", params=" + params); 1381 } 1382 1383 final int surfaceGenerationId = mSurface.getGenerationId(); 1384 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1385 1386 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1387 + " content=" + mPendingContentInsets.toShortString() 1388 + " visible=" + mPendingVisibleInsets.toShortString() 1389 + " surface=" + mSurface); 1390 1391 if (mPendingConfiguration.seq != 0) { 1392 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1393 + mPendingConfiguration); 1394 updateConfiguration(mPendingConfiguration, !mFirst); 1395 mPendingConfiguration.seq = 0; 1396 } 1397 1398 contentInsetsChanged = !mPendingContentInsets.equals( 1399 mAttachInfo.mContentInsets); 1400 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1401 mAttachInfo.mVisibleInsets); 1402 if (contentInsetsChanged) { 1403 if (mWidth > 0 && mHeight > 0 && lp != null && 1404 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1405 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1406 mSurface != null && mSurface.isValid() && 1407 !mAttachInfo.mTurnOffWindowResizeAnim && 1408 mAttachInfo.mHardwareRenderer != null && 1409 mAttachInfo.mHardwareRenderer.isEnabled() && 1410 mAttachInfo.mHardwareRenderer.validate() && 1411 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1412 1413 disposeResizeBuffer(); 1414 1415 boolean completed = false; 1416 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1417 HardwareCanvas layerCanvas = null; 1418 try { 1419 if (mResizeBuffer == null) { 1420 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1421 mWidth, mHeight, false); 1422 } else if (mResizeBuffer.getWidth() != mWidth || 1423 mResizeBuffer.getHeight() != mHeight) { 1424 mResizeBuffer.resize(mWidth, mHeight); 1425 } 1426 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1427 layerCanvas.setViewport(mWidth, mHeight); 1428 layerCanvas.onPreDraw(null); 1429 final int restoreCount = layerCanvas.save(); 1430 1431 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1432 1433 int yoff; 1434 final boolean scrolling = mScroller != null 1435 && mScroller.computeScrollOffset(); 1436 if (scrolling) { 1437 yoff = mScroller.getCurrY(); 1438 mScroller.abortAnimation(); 1439 } else { 1440 yoff = mScrollY; 1441 } 1442 1443 layerCanvas.translate(0, -yoff); 1444 if (mTranslator != null) { 1445 mTranslator.translateCanvas(layerCanvas); 1446 } 1447 1448 mView.draw(layerCanvas); 1449 1450 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1451 1452 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1453 mResizeBufferDuration = mView.getResources().getInteger( 1454 com.android.internal.R.integer.config_mediumAnimTime); 1455 completed = true; 1456 1457 layerCanvas.restoreToCount(restoreCount); 1458 } catch (OutOfMemoryError e) { 1459 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1460 } finally { 1461 if (layerCanvas != null) { 1462 layerCanvas.onPostDraw(); 1463 } 1464 if (mResizeBuffer != null) { 1465 mResizeBuffer.end(hwRendererCanvas); 1466 if (!completed) { 1467 mResizeBuffer.destroy(); 1468 mResizeBuffer = null; 1469 } 1470 } 1471 } 1472 } 1473 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1474 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1475 + mAttachInfo.mContentInsets); 1476 } 1477 if (contentInsetsChanged || mLastSystemUiVisibility != 1478 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1479 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1480 mFitSystemWindowsRequested = false; 1481 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1482 host.fitSystemWindows(mFitSystemWindowsInsets); 1483 } 1484 if (visibleInsetsChanged) { 1485 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1486 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1487 + mAttachInfo.mVisibleInsets); 1488 } 1489 1490 if (!hadSurface) { 1491 if (mSurface.isValid()) { 1492 // If we are creating a new surface, then we need to 1493 // completely redraw it. Also, when we get to the 1494 // point of drawing it we will hold off and schedule 1495 // a new traversal instead. This is so we can tell the 1496 // window manager about all of the windows being displayed 1497 // before actually drawing them, so it can display then 1498 // all at once. 1499 newSurface = true; 1500 mFullRedrawNeeded = true; 1501 mPreviousTransparentRegion.setEmpty(); 1502 1503 if (mAttachInfo.mHardwareRenderer != null) { 1504 try { 1505 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1506 } catch (Surface.OutOfResourcesException e) { 1507 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1508 try { 1509 if (!sWindowSession.outOfMemory(mWindow)) { 1510 Slog.w(TAG, "No processes killed for memory; killing self"); 1511 Process.killProcess(Process.myPid()); 1512 } 1513 } catch (RemoteException ex) { 1514 } 1515 mLayoutRequested = true; // ask wm for a new surface next time. 1516 return; 1517 } 1518 } 1519 } 1520 } else if (!mSurface.isValid()) { 1521 // If the surface has been removed, then reset the scroll 1522 // positions. 1523 mLastScrolledFocus = null; 1524 mScrollY = mCurScrollY = 0; 1525 if (mScroller != null) { 1526 mScroller.abortAnimation(); 1527 } 1528 disposeResizeBuffer(); 1529 // Our surface is gone 1530 if (mAttachInfo.mHardwareRenderer != null && 1531 mAttachInfo.mHardwareRenderer.isEnabled()) { 1532 mAttachInfo.mHardwareRenderer.destroy(true); 1533 } 1534 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1535 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1536 mFullRedrawNeeded = true; 1537 try { 1538 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1539 } catch (Surface.OutOfResourcesException e) { 1540 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1541 try { 1542 if (!sWindowSession.outOfMemory(mWindow)) { 1543 Slog.w(TAG, "No processes killed for memory; killing self"); 1544 Process.killProcess(Process.myPid()); 1545 } 1546 } catch (RemoteException ex) { 1547 } 1548 mLayoutRequested = true; // ask wm for a new surface next time. 1549 return; 1550 } 1551 } 1552 } catch (RemoteException e) { 1553 } 1554 1555 if (DEBUG_ORIENTATION) Log.v( 1556 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1557 1558 attachInfo.mWindowLeft = frame.left; 1559 attachInfo.mWindowTop = frame.top; 1560 1561 // !!FIXME!! This next section handles the case where we did not get the 1562 // window size we asked for. We should avoid this by getting a maximum size from 1563 // the window session beforehand. 1564 if (mWidth != frame.width() || mHeight != frame.height()) { 1565 mWidth = frame.width(); 1566 mHeight = frame.height(); 1567 } 1568 1569 if (mSurfaceHolder != null) { 1570 // The app owns the surface; tell it about what is going on. 1571 if (mSurface.isValid()) { 1572 // XXX .copyFrom() doesn't work! 1573 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1574 mSurfaceHolder.mSurface = mSurface; 1575 } 1576 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1577 mSurfaceHolder.mSurfaceLock.unlock(); 1578 if (mSurface.isValid()) { 1579 if (!hadSurface) { 1580 mSurfaceHolder.ungetCallbacks(); 1581 1582 mIsCreating = true; 1583 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1584 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1585 if (callbacks != null) { 1586 for (SurfaceHolder.Callback c : callbacks) { 1587 c.surfaceCreated(mSurfaceHolder); 1588 } 1589 } 1590 surfaceChanged = true; 1591 } 1592 if (surfaceChanged) { 1593 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1594 lp.format, mWidth, mHeight); 1595 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1596 if (callbacks != null) { 1597 for (SurfaceHolder.Callback c : callbacks) { 1598 c.surfaceChanged(mSurfaceHolder, lp.format, 1599 mWidth, mHeight); 1600 } 1601 } 1602 } 1603 mIsCreating = false; 1604 } else if (hadSurface) { 1605 mSurfaceHolder.ungetCallbacks(); 1606 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1607 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1608 if (callbacks != null) { 1609 for (SurfaceHolder.Callback c : callbacks) { 1610 c.surfaceDestroyed(mSurfaceHolder); 1611 } 1612 } 1613 mSurfaceHolder.mSurfaceLock.lock(); 1614 try { 1615 mSurfaceHolder.mSurface = new Surface(); 1616 } finally { 1617 mSurfaceHolder.mSurfaceLock.unlock(); 1618 } 1619 } 1620 } 1621 1622 if (mAttachInfo.mHardwareRenderer != null && 1623 mAttachInfo.mHardwareRenderer.isEnabled()) { 1624 if (hwInitialized || windowShouldResize || 1625 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1626 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1627 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1628 if (!hwInitialized) { 1629 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1630 } 1631 } 1632 } 1633 1634 if (!mStopped) { 1635 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1636 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1637 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1638 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1639 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1640 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1641 1642 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1643 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1644 + " mHeight=" + mHeight 1645 + " measuredHeight=" + host.getMeasuredHeight() 1646 + " coveredInsetsChanged=" + contentInsetsChanged); 1647 1648 // Ask host how big it wants to be 1649 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1650 1651 // Implementation of weights from WindowManager.LayoutParams 1652 // We just grow the dimensions as needed and re-measure if 1653 // needs be 1654 int width = host.getMeasuredWidth(); 1655 int height = host.getMeasuredHeight(); 1656 boolean measureAgain = false; 1657 1658 if (lp.horizontalWeight > 0.0f) { 1659 width += (int) ((mWidth - width) * lp.horizontalWeight); 1660 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1661 MeasureSpec.EXACTLY); 1662 measureAgain = true; 1663 } 1664 if (lp.verticalWeight > 0.0f) { 1665 height += (int) ((mHeight - height) * lp.verticalWeight); 1666 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1667 MeasureSpec.EXACTLY); 1668 measureAgain = true; 1669 } 1670 1671 if (measureAgain) { 1672 if (DEBUG_LAYOUT) Log.v(TAG, 1673 "And hey let's measure once more: width=" + width 1674 + " height=" + height); 1675 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1676 } 1677 1678 layoutRequested = true; 1679 } 1680 } 1681 } 1682 1683 final boolean didLayout = layoutRequested && !mStopped; 1684 boolean triggerGlobalLayoutListener = didLayout 1685 || attachInfo.mRecomputeGlobalAttributes; 1686 if (didLayout) { 1687 performLayout(); 1688 1689 // By this point all views have been sized and positionned 1690 // We can compute the transparent area 1691 1692 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1693 // start out transparent 1694 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1695 host.getLocationInWindow(mTmpLocation); 1696 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1697 mTmpLocation[0] + host.mRight - host.mLeft, 1698 mTmpLocation[1] + host.mBottom - host.mTop); 1699 1700 host.gatherTransparentRegion(mTransparentRegion); 1701 if (mTranslator != null) { 1702 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1703 } 1704 1705 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1706 mPreviousTransparentRegion.set(mTransparentRegion); 1707 // reconfigure window manager 1708 try { 1709 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1710 } catch (RemoteException e) { 1711 } 1712 } 1713 } 1714 1715 if (DBG) { 1716 System.out.println("======================================"); 1717 System.out.println("performTraversals -- after setFrame"); 1718 host.debug(); 1719 } 1720 } 1721 1722 if (triggerGlobalLayoutListener) { 1723 attachInfo.mRecomputeGlobalAttributes = false; 1724 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1725 1726 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1727 postSendWindowContentChangedCallback(mView); 1728 } 1729 } 1730 1731 if (computesInternalInsets) { 1732 // Clear the original insets. 1733 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1734 insets.reset(); 1735 1736 // Compute new insets in place. 1737 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1738 1739 // Tell the window manager. 1740 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1741 mLastGivenInsets.set(insets); 1742 1743 // Translate insets to screen coordinates if needed. 1744 final Rect contentInsets; 1745 final Rect visibleInsets; 1746 final Region touchableRegion; 1747 if (mTranslator != null) { 1748 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1749 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1750 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1751 } else { 1752 contentInsets = insets.contentInsets; 1753 visibleInsets = insets.visibleInsets; 1754 touchableRegion = insets.touchableRegion; 1755 } 1756 1757 try { 1758 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1759 contentInsets, visibleInsets, touchableRegion); 1760 } catch (RemoteException e) { 1761 } 1762 } 1763 } 1764 1765 boolean skipDraw = false; 1766 1767 if (mFirst) { 1768 // handle first focus request 1769 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1770 + mView.hasFocus()); 1771 if (mView != null) { 1772 if (!mView.hasFocus()) { 1773 mView.requestFocus(View.FOCUS_FORWARD); 1774 mFocusedView = mRealFocusedView = mView.findFocus(); 1775 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1776 + mFocusedView); 1777 } else { 1778 mRealFocusedView = mView.findFocus(); 1779 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1780 + mRealFocusedView); 1781 } 1782 } 1783 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1784 // The first time we relayout the window, if the system is 1785 // doing window animations, we want to hold of on any future 1786 // draws until the animation is done. 1787 mWindowsAnimating = true; 1788 } 1789 } else if (mWindowsAnimating) { 1790 skipDraw = true; 1791 } 1792 1793 mFirst = false; 1794 mWillDrawSoon = false; 1795 mNewSurfaceNeeded = false; 1796 mViewVisibility = viewVisibility; 1797 1798 if (mAttachInfo.mHasWindowFocus) { 1799 final boolean imTarget = WindowManager.LayoutParams 1800 .mayUseInputMethod(mWindowAttributes.flags); 1801 if (imTarget != mLastWasImTarget) { 1802 mLastWasImTarget = imTarget; 1803 InputMethodManager imm = InputMethodManager.peekInstance(); 1804 if (imm != null && imTarget) { 1805 imm.startGettingWindowFocus(mView); 1806 imm.onWindowFocus(mView, mView.findFocus(), 1807 mWindowAttributes.softInputMode, 1808 !mHasHadWindowFocus, mWindowAttributes.flags); 1809 } 1810 } 1811 } 1812 1813 // Remember if we must report the next draw. 1814 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1815 mReportNextDraw = true; 1816 } 1817 1818 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1819 viewVisibility != View.VISIBLE; 1820 1821 if (!cancelDraw && !newSurface) { 1822 if (!skipDraw || mReportNextDraw) { 1823 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1824 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1825 mPendingTransitions.get(i).startChangingAnimations(); 1826 } 1827 mPendingTransitions.clear(); 1828 } 1829 1830 performDraw(); 1831 } 1832 } else { 1833 if (viewVisibility == View.VISIBLE) { 1834 // Try again 1835 scheduleTraversals(); 1836 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1837 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1838 mPendingTransitions.get(i).endChangingAnimations(); 1839 } 1840 mPendingTransitions.clear(); 1841 } 1842 } 1843 } 1844 1845 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1846 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1847 try { 1848 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1849 } finally { 1850 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1851 } 1852 } 1853 1854 private void performLayout() { 1855 mLayoutRequested = false; 1856 mScrollMayChange = true; 1857 1858 final View host = mView; 1859 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1860 Log.v(TAG, "Laying out " + host + " to (" + 1861 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1862 } 1863 1864 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1865 try { 1866 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1867 } finally { 1868 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1869 } 1870 } 1871 1872 public void requestTransparentRegion(View child) { 1873 // the test below should not fail unless someone is messing with us 1874 checkThread(); 1875 if (mView == child) { 1876 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1877 // Need to make sure we re-evaluate the window attributes next 1878 // time around, to ensure the window has the correct format. 1879 mWindowAttributesChanged = true; 1880 mWindowAttributesChangesFlag = 0; 1881 requestLayout(); 1882 } 1883 } 1884 1885 /** 1886 * Figures out the measure spec for the root view in a window based on it's 1887 * layout params. 1888 * 1889 * @param windowSize 1890 * The available width or height of the window 1891 * 1892 * @param rootDimension 1893 * The layout params for one dimension (width or height) of the 1894 * window. 1895 * 1896 * @return The measure spec to use to measure the root view. 1897 */ 1898 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1899 int measureSpec; 1900 switch (rootDimension) { 1901 1902 case ViewGroup.LayoutParams.MATCH_PARENT: 1903 // Window can't resize. Force root view to be windowSize. 1904 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1905 break; 1906 case ViewGroup.LayoutParams.WRAP_CONTENT: 1907 // Window can resize. Set max size for root view. 1908 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1909 break; 1910 default: 1911 // Window wants to be an exact size. Force root view to be that size. 1912 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1913 break; 1914 } 1915 return measureSpec; 1916 } 1917 1918 int mHardwareYOffset; 1919 int mResizeAlpha; 1920 final Paint mResizePaint = new Paint(); 1921 1922 public void onHardwarePreDraw(HardwareCanvas canvas) { 1923 canvas.translate(0, -mHardwareYOffset); 1924 } 1925 1926 public void onHardwarePostDraw(HardwareCanvas canvas) { 1927 if (mResizeBuffer != null) { 1928 mResizePaint.setAlpha(mResizeAlpha); 1929 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1930 } 1931 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1932 } 1933 1934 /** 1935 * @hide 1936 */ 1937 void outputDisplayList(View view) { 1938 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1939 DisplayList displayList = view.getDisplayList(); 1940 if (displayList != null) { 1941 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1942 } 1943 } 1944 } 1945 1946 /** 1947 * @see #PROPERTY_PROFILE_RENDERING 1948 */ 1949 private void profileRendering(boolean enabled) { 1950 if (mProfileRendering) { 1951 mRenderProfilingEnabled = enabled; 1952 if (mRenderProfiler == null) { 1953 mRenderProfiler = new Thread(new Runnable() { 1954 @Override 1955 public void run() { 1956 Log.d(TAG, "Starting profiling thread"); 1957 while (mRenderProfilingEnabled) { 1958 mAttachInfo.mHandler.post(new Runnable() { 1959 @Override 1960 public void run() { 1961 mDirty.set(0, 0, mWidth, mHeight); 1962 scheduleTraversals(); 1963 } 1964 }); 1965 try { 1966 // TODO: This should use vsync when we get an API 1967 Thread.sleep(15); 1968 } catch (InterruptedException e) { 1969 Log.d(TAG, "Exiting profiling thread"); 1970 } 1971 } 1972 } 1973 }, "Rendering Profiler"); 1974 mRenderProfiler.start(); 1975 } else { 1976 mRenderProfiler.interrupt(); 1977 mRenderProfiler = null; 1978 } 1979 } 1980 } 1981 1982 /** 1983 * Called from draw() when DEBUG_FPS is enabled 1984 */ 1985 private void trackFPS() { 1986 // Tracks frames per second drawn. First value in a series of draws may be bogus 1987 // because it down not account for the intervening idle time 1988 long nowTime = System.currentTimeMillis(); 1989 if (mFpsStartTime < 0) { 1990 mFpsStartTime = mFpsPrevTime = nowTime; 1991 mFpsNumFrames = 0; 1992 } else { 1993 ++mFpsNumFrames; 1994 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1995 long frameTime = nowTime - mFpsPrevTime; 1996 long totalTime = nowTime - mFpsStartTime; 1997 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1998 mFpsPrevTime = nowTime; 1999 if (totalTime > 1000) { 2000 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2001 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2002 mFpsStartTime = nowTime; 2003 mFpsNumFrames = 0; 2004 } 2005 } 2006 } 2007 2008 private void performDraw() { 2009 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2010 return; 2011 } 2012 2013 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2014 mFullRedrawNeeded = false; 2015 2016 mIsDrawing = true; 2017 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2018 try { 2019 draw(fullRedrawNeeded); 2020 } finally { 2021 mIsDrawing = false; 2022 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2023 } 2024 2025 if (mReportNextDraw) { 2026 mReportNextDraw = false; 2027 2028 if (LOCAL_LOGV) { 2029 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2030 } 2031 if (mSurfaceHolder != null && mSurface.isValid()) { 2032 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2033 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2034 if (callbacks != null) { 2035 for (SurfaceHolder.Callback c : callbacks) { 2036 if (c instanceof SurfaceHolder.Callback2) { 2037 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2038 mSurfaceHolder); 2039 } 2040 } 2041 } 2042 } 2043 try { 2044 sWindowSession.finishDrawing(mWindow); 2045 } catch (RemoteException e) { 2046 } 2047 } 2048 } 2049 2050 private void draw(boolean fullRedrawNeeded) { 2051 Surface surface = mSurface; 2052 if (surface == null || !surface.isValid()) { 2053 return; 2054 } 2055 2056 if (DEBUG_FPS) { 2057 trackFPS(); 2058 } 2059 2060 if (!sFirstDrawComplete) { 2061 synchronized (sFirstDrawHandlers) { 2062 sFirstDrawComplete = true; 2063 final int count = sFirstDrawHandlers.size(); 2064 for (int i = 0; i< count; i++) { 2065 mHandler.post(sFirstDrawHandlers.get(i)); 2066 } 2067 } 2068 } 2069 2070 scrollToRectOrFocus(null, false); 2071 2072 final AttachInfo attachInfo = mAttachInfo; 2073 if (attachInfo.mViewScrollChanged) { 2074 attachInfo.mViewScrollChanged = false; 2075 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2076 } 2077 2078 int yoff; 2079 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2080 if (animating) { 2081 yoff = mScroller.getCurrY(); 2082 } else { 2083 yoff = mScrollY; 2084 } 2085 if (mCurScrollY != yoff) { 2086 mCurScrollY = yoff; 2087 fullRedrawNeeded = true; 2088 } 2089 2090 final float appScale = attachInfo.mApplicationScale; 2091 final boolean scalingRequired = attachInfo.mScalingRequired; 2092 2093 int resizeAlpha = 0; 2094 if (mResizeBuffer != null) { 2095 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2096 if (deltaTime < mResizeBufferDuration) { 2097 float amt = deltaTime/(float) mResizeBufferDuration; 2098 amt = mResizeInterpolator.getInterpolation(amt); 2099 animating = true; 2100 resizeAlpha = 255 - (int)(amt*255); 2101 } else { 2102 disposeResizeBuffer(); 2103 } 2104 } 2105 2106 final Rect dirty = mDirty; 2107 if (mSurfaceHolder != null) { 2108 // The app owns the surface, we won't draw. 2109 dirty.setEmpty(); 2110 if (animating) { 2111 if (mScroller != null) { 2112 mScroller.abortAnimation(); 2113 } 2114 disposeResizeBuffer(); 2115 } 2116 return; 2117 } 2118 2119 if (fullRedrawNeeded) { 2120 attachInfo.mIgnoreDirtyState = true; 2121 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2122 } 2123 2124 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2125 Log.v(TAG, "Draw " + mView + "/" 2126 + mWindowAttributes.getTitle() 2127 + ": dirty={" + dirty.left + "," + dirty.top 2128 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2129 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2130 appScale + ", width=" + mWidth + ", height=" + mHeight); 2131 } 2132 2133 attachInfo.mTreeObserver.dispatchOnDraw(); 2134 2135 if (!dirty.isEmpty() || mIsAnimating) { 2136 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2137 // Draw with hardware renderer. 2138 mIsAnimating = false; 2139 mHardwareYOffset = yoff; 2140 mResizeAlpha = resizeAlpha; 2141 2142 mCurrentDirty.set(dirty); 2143 mCurrentDirty.union(mPreviousDirty); 2144 mPreviousDirty.set(dirty); 2145 dirty.setEmpty(); 2146 2147 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2148 animating ? null : mCurrentDirty)) { 2149 mPreviousDirty.set(0, 0, mWidth, mHeight); 2150 } 2151 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2152 return; 2153 } 2154 } 2155 2156 if (animating) { 2157 mFullRedrawNeeded = true; 2158 scheduleTraversals(); 2159 } 2160 } 2161 2162 /** 2163 * @return true if drawing was succesfull, false if an error occurred 2164 */ 2165 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2166 boolean scalingRequired, Rect dirty) { 2167 2168 // If we get here with a disabled & requested hardware renderer, something went 2169 // wrong (an invalidate posted right before we destroyed the hardware surface 2170 // for instance) so we should just bail out. Locking the surface with software 2171 // rendering at this point would lock it forever and prevent hardware renderer 2172 // from doing its job when it comes back. 2173 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2174 attachInfo.mHardwareRenderer.isRequested()) { 2175 mFullRedrawNeeded = true; 2176 scheduleTraversals(); 2177 return false; 2178 } 2179 2180 // Draw with software renderer. 2181 Canvas canvas; 2182 try { 2183 int left = dirty.left; 2184 int top = dirty.top; 2185 int right = dirty.right; 2186 int bottom = dirty.bottom; 2187 2188 canvas = mSurface.lockCanvas(dirty); 2189 2190 if (left != dirty.left || top != dirty.top || right != dirty.right || 2191 bottom != dirty.bottom) { 2192 attachInfo.mIgnoreDirtyState = true; 2193 } 2194 2195 // TODO: Do this in native 2196 canvas.setDensity(mDensity); 2197 } catch (Surface.OutOfResourcesException e) { 2198 Log.e(TAG, "OutOfResourcesException locking surface", e); 2199 try { 2200 if (!sWindowSession.outOfMemory(mWindow)) { 2201 Slog.w(TAG, "No processes killed for memory; killing self"); 2202 Process.killProcess(Process.myPid()); 2203 } 2204 } catch (RemoteException ex) { 2205 } 2206 mLayoutRequested = true; // ask wm for a new surface next time. 2207 return false; 2208 } catch (IllegalArgumentException e) { 2209 Log.e(TAG, "Could not lock surface", e); 2210 // Don't assume this is due to out of memory, it could be 2211 // something else, and if it is something else then we could 2212 // kill stuff (or ourself) for no reason. 2213 mLayoutRequested = true; // ask wm for a new surface next time. 2214 return false; 2215 } 2216 2217 try { 2218 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2219 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2220 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2221 //canvas.drawARGB(255, 255, 0, 0); 2222 } 2223 2224 // If this bitmap's format includes an alpha channel, we 2225 // need to clear it before drawing so that the child will 2226 // properly re-composite its drawing on a transparent 2227 // background. This automatically respects the clip/dirty region 2228 // or 2229 // If we are applying an offset, we need to clear the area 2230 // where the offset doesn't appear to avoid having garbage 2231 // left in the blank areas. 2232 if (!canvas.isOpaque() || yoff != 0) { 2233 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2234 } 2235 2236 dirty.setEmpty(); 2237 mIsAnimating = false; 2238 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2239 mView.mPrivateFlags |= View.DRAWN; 2240 2241 if (DEBUG_DRAW) { 2242 Context cxt = mView.getContext(); 2243 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2244 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2245 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2246 } 2247 try { 2248 canvas.translate(0, -yoff); 2249 if (mTranslator != null) { 2250 mTranslator.translateCanvas(canvas); 2251 } 2252 canvas.setScreenDensity(scalingRequired 2253 ? DisplayMetrics.DENSITY_DEVICE : 0); 2254 attachInfo.mSetIgnoreDirtyState = false; 2255 2256 mView.draw(canvas); 2257 2258 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2259 } finally { 2260 if (!attachInfo.mSetIgnoreDirtyState) { 2261 // Only clear the flag if it was not set during the mView.draw() call 2262 attachInfo.mIgnoreDirtyState = false; 2263 } 2264 } 2265 } finally { 2266 try { 2267 surface.unlockCanvasAndPost(canvas); 2268 } catch (IllegalArgumentException e) { 2269 Log.e(TAG, "Could not unlock surface", e); 2270 mLayoutRequested = true; // ask wm for a new surface next time. 2271 //noinspection ReturnInsideFinallyBlock 2272 return false; 2273 } 2274 2275 if (LOCAL_LOGV) { 2276 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2277 } 2278 } 2279 return true; 2280 } 2281 2282 @Override 2283 public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 2284 if (descendant.includeForAccessibility()) { 2285 return descendant; 2286 } 2287 return null; 2288 } 2289 2290 /** 2291 * We want to draw a highlight around the current accessibility focused. 2292 * Since adding a style for all possible view is not a viable option we 2293 * have this specialized drawing method. 2294 * 2295 * Note: We are doing this here to be able to draw the highlight for 2296 * virtual views in addition to real ones. 2297 * 2298 * @param canvas The canvas on which to draw. 2299 */ 2300 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2301 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2302 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2303 return; 2304 } 2305 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2306 return; 2307 } 2308 Drawable drawable = getAccessibilityFocusedDrawable(); 2309 if (drawable == null) { 2310 return; 2311 } 2312 AccessibilityNodeProvider provider = 2313 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2314 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2315 if (provider == null) { 2316 mAccessibilityFocusedHost.getDrawingRect(bounds); 2317 if (mView instanceof ViewGroup) { 2318 ViewGroup viewGroup = (ViewGroup) mView; 2319 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2320 } 2321 } else { 2322 if (mAccessibilityFocusedVirtualView == null) { 2323 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2324 } 2325 if (mAccessibilityFocusedVirtualView == null) { 2326 return; 2327 } 2328 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2329 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2330 } 2331 drawable.setBounds(bounds); 2332 drawable.draw(canvas); 2333 } 2334 2335 private Drawable getAccessibilityFocusedDrawable() { 2336 if (mAttachInfo != null) { 2337 // Lazily load the accessibility focus drawable. 2338 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2339 TypedValue value = new TypedValue(); 2340 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2341 R.attr.accessibilityFocusedDrawable, value, true); 2342 if (resolved) { 2343 mAttachInfo.mAccessibilityFocusDrawable = 2344 mView.mContext.getResources().getDrawable(value.resourceId); 2345 } 2346 } 2347 return mAttachInfo.mAccessibilityFocusDrawable; 2348 } 2349 return null; 2350 } 2351 2352 void invalidateDisplayLists() { 2353 final ArrayList<DisplayList> displayLists = mDisplayLists; 2354 final int count = displayLists.size(); 2355 2356 for (int i = 0; i < count; i++) { 2357 final DisplayList displayList = displayLists.get(i); 2358 displayList.invalidate(); 2359 displayList.clear(); 2360 } 2361 2362 displayLists.clear(); 2363 } 2364 2365 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2366 final View.AttachInfo attachInfo = mAttachInfo; 2367 final Rect ci = attachInfo.mContentInsets; 2368 final Rect vi = attachInfo.mVisibleInsets; 2369 int scrollY = 0; 2370 boolean handled = false; 2371 2372 if (vi.left > ci.left || vi.top > ci.top 2373 || vi.right > ci.right || vi.bottom > ci.bottom) { 2374 // We'll assume that we aren't going to change the scroll 2375 // offset, since we want to avoid that unless it is actually 2376 // going to make the focus visible... otherwise we scroll 2377 // all over the place. 2378 scrollY = mScrollY; 2379 // We can be called for two different situations: during a draw, 2380 // to update the scroll position if the focus has changed (in which 2381 // case 'rectangle' is null), or in response to a 2382 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2383 // is non-null and we just want to scroll to whatever that 2384 // rectangle is). 2385 View focus = mRealFocusedView; 2386 2387 // When in touch mode, focus points to the previously focused view, 2388 // which may have been removed from the view hierarchy. The following 2389 // line checks whether the view is still in our hierarchy. 2390 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2391 mRealFocusedView = null; 2392 return false; 2393 } 2394 2395 if (focus != mLastScrolledFocus) { 2396 // If the focus has changed, then ignore any requests to scroll 2397 // to a rectangle; first we want to make sure the entire focus 2398 // view is visible. 2399 rectangle = null; 2400 } 2401 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2402 + " rectangle=" + rectangle + " ci=" + ci 2403 + " vi=" + vi); 2404 if (focus == mLastScrolledFocus && !mScrollMayChange 2405 && rectangle == null) { 2406 // Optimization: if the focus hasn't changed since last 2407 // time, and no layout has happened, then just leave things 2408 // as they are. 2409 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2410 + mScrollY + " vi=" + vi.toShortString()); 2411 } else if (focus != null) { 2412 // We need to determine if the currently focused view is 2413 // within the visible part of the window and, if not, apply 2414 // a pan so it can be seen. 2415 mLastScrolledFocus = focus; 2416 mScrollMayChange = false; 2417 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2418 // Try to find the rectangle from the focus view. 2419 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2420 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2421 + mView.getWidth() + " h=" + mView.getHeight() 2422 + " ci=" + ci.toShortString() 2423 + " vi=" + vi.toShortString()); 2424 if (rectangle == null) { 2425 focus.getFocusedRect(mTempRect); 2426 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2427 + ": focusRect=" + mTempRect.toShortString()); 2428 if (mView instanceof ViewGroup) { 2429 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2430 focus, mTempRect); 2431 } 2432 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2433 "Focus in window: focusRect=" 2434 + mTempRect.toShortString() 2435 + " visRect=" + mVisRect.toShortString()); 2436 } else { 2437 mTempRect.set(rectangle); 2438 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2439 "Request scroll to rect: " 2440 + mTempRect.toShortString() 2441 + " visRect=" + mVisRect.toShortString()); 2442 } 2443 if (mTempRect.intersect(mVisRect)) { 2444 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2445 "Focus window visible rect: " 2446 + mTempRect.toShortString()); 2447 if (mTempRect.height() > 2448 (mView.getHeight()-vi.top-vi.bottom)) { 2449 // If the focus simply is not going to fit, then 2450 // best is probably just to leave things as-is. 2451 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2452 "Too tall; leaving scrollY=" + scrollY); 2453 } else if ((mTempRect.top-scrollY) < vi.top) { 2454 scrollY -= vi.top - (mTempRect.top-scrollY); 2455 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2456 "Top covered; scrollY=" + scrollY); 2457 } else if ((mTempRect.bottom-scrollY) 2458 > (mView.getHeight()-vi.bottom)) { 2459 scrollY += (mTempRect.bottom-scrollY) 2460 - (mView.getHeight()-vi.bottom); 2461 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2462 "Bottom covered; scrollY=" + scrollY); 2463 } 2464 handled = true; 2465 } 2466 } 2467 } 2468 } 2469 2470 if (scrollY != mScrollY) { 2471 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2472 + mScrollY + " , new=" + scrollY); 2473 if (!immediate && mResizeBuffer == null) { 2474 if (mScroller == null) { 2475 mScroller = new Scroller(mView.getContext()); 2476 } 2477 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2478 } else if (mScroller != null) { 2479 mScroller.abortAnimation(); 2480 } 2481 mScrollY = scrollY; 2482 } 2483 2484 return handled; 2485 } 2486 2487 /** 2488 * @hide 2489 */ 2490 public View getAccessibilityFocusedHost() { 2491 return mAccessibilityFocusedHost; 2492 } 2493 2494 /** 2495 * @hide 2496 */ 2497 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2498 return mAccessibilityFocusedVirtualView; 2499 } 2500 2501 void setAccessibilityFocusedHost(View host) { 2502 // If we have a virtual view with accessibility focus we need 2503 // to clear the focus and invalidate the virtual view bounds. 2504 if (mAccessibilityFocusedVirtualView != null) { 2505 2506 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2507 View focusHost = mAccessibilityFocusedHost; 2508 focusHost.clearAccessibilityFocusNoCallbacks(); 2509 2510 // Wipe the state of the current accessibility focus since 2511 // the call into the provider to clear accessibility focus 2512 // will fire an accessibility event which will end up calling 2513 // this method and we want to have clean state when this 2514 // invocation happens. 2515 mAccessibilityFocusedHost = null; 2516 mAccessibilityFocusedVirtualView = null; 2517 2518 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2519 if (provider != null) { 2520 // Invalidate the area of the cleared accessibility focus. 2521 focusNode.getBoundsInParent(mTempRect); 2522 focusHost.invalidate(mTempRect); 2523 // Clear accessibility focus in the virtual node. 2524 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2525 focusNode.getSourceNodeId()); 2526 provider.performAction(virtualNodeId, 2527 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2528 } 2529 } 2530 if (mAccessibilityFocusedHost != null) { 2531 // Clear accessibility focus in the view. 2532 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2533 } 2534 2535 // Set the new focus host. 2536 mAccessibilityFocusedHost = host; 2537 2538 // If the host has a provide find the virtual descendant that has focus. 2539 if (mAccessibilityFocusedHost != null) { 2540 AccessibilityNodeProvider provider = 2541 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2542 if (provider != null) { 2543 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2544 return; 2545 } 2546 } 2547 } 2548 2549 public void requestChildFocus(View child, View focused) { 2550 checkThread(); 2551 2552 if (DEBUG_INPUT_RESIZE) { 2553 Log.v(TAG, "Request child focus: focus now " + focused); 2554 } 2555 2556 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2557 scheduleTraversals(); 2558 2559 mFocusedView = mRealFocusedView = focused; 2560 } 2561 2562 public void clearChildFocus(View child) { 2563 checkThread(); 2564 2565 if (DEBUG_INPUT_RESIZE) { 2566 Log.v(TAG, "Clearing child focus"); 2567 } 2568 2569 mOldFocusedView = mFocusedView; 2570 2571 // Invoke the listener only if there is no view to take focus 2572 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2573 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2574 } 2575 2576 mFocusedView = mRealFocusedView = null; 2577 } 2578 2579 @Override 2580 public ViewParent getParentForAccessibility() { 2581 return null; 2582 } 2583 2584 public void focusableViewAvailable(View v) { 2585 checkThread(); 2586 if (mView != null) { 2587 if (!mView.hasFocus()) { 2588 v.requestFocus(); 2589 } else { 2590 // the one case where will transfer focus away from the current one 2591 // is if the current view is a view group that prefers to give focus 2592 // to its children first AND the view is a descendant of it. 2593 mFocusedView = mView.findFocus(); 2594 boolean descendantsHaveDibsOnFocus = 2595 (mFocusedView instanceof ViewGroup) && 2596 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2597 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2598 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2599 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2600 v.requestFocus(); 2601 } 2602 } 2603 } 2604 } 2605 2606 public void recomputeViewAttributes(View child) { 2607 checkThread(); 2608 if (mView == child) { 2609 mAttachInfo.mRecomputeGlobalAttributes = true; 2610 if (!mWillDrawSoon) { 2611 scheduleTraversals(); 2612 } 2613 } 2614 } 2615 2616 void dispatchDetachedFromWindow() { 2617 if (mView != null && mView.mAttachInfo != null) { 2618 if (mAttachInfo.mHardwareRenderer != null && 2619 mAttachInfo.mHardwareRenderer.isEnabled()) { 2620 mAttachInfo.mHardwareRenderer.validate(); 2621 } 2622 mView.dispatchDetachedFromWindow(); 2623 } 2624 2625 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2626 mAccessibilityManager.removeAccessibilityStateChangeListener( 2627 mAccessibilityInteractionConnectionManager); 2628 removeSendWindowContentChangedCallback(); 2629 2630 destroyHardwareRenderer(); 2631 2632 setAccessibilityFocusedHost(null); 2633 2634 mView = null; 2635 mAttachInfo.mRootView = null; 2636 mAttachInfo.mSurface = null; 2637 2638 mSurface.release(); 2639 2640 if (mInputQueueCallback != null && mInputQueue != null) { 2641 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2642 mInputQueueCallback = null; 2643 mInputQueue = null; 2644 } else if (mInputEventReceiver != null) { 2645 mInputEventReceiver.dispose(); 2646 mInputEventReceiver = null; 2647 } 2648 try { 2649 sWindowSession.remove(mWindow); 2650 } catch (RemoteException e) { 2651 } 2652 2653 // Dispose the input channel after removing the window so the Window Manager 2654 // doesn't interpret the input channel being closed as an abnormal termination. 2655 if (mInputChannel != null) { 2656 mInputChannel.dispose(); 2657 mInputChannel = null; 2658 } 2659 2660 unscheduleTraversals(); 2661 } 2662 2663 void updateConfiguration(Configuration config, boolean force) { 2664 if (DEBUG_CONFIGURATION) Log.v(TAG, 2665 "Applying new config to window " 2666 + mWindowAttributes.getTitle() 2667 + ": " + config); 2668 2669 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2670 if (ci != null) { 2671 config = new Configuration(config); 2672 ci.applyToConfiguration(config); 2673 } 2674 2675 synchronized (sConfigCallbacks) { 2676 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2677 sConfigCallbacks.get(i).onConfigurationChanged(config); 2678 } 2679 } 2680 if (mView != null) { 2681 // At this point the resources have been updated to 2682 // have the most recent config, whatever that is. Use 2683 // the on in them which may be newer. 2684 config = mView.getResources().getConfiguration(); 2685 if (force || mLastConfiguration.diff(config) != 0) { 2686 mLastConfiguration.setTo(config); 2687 mView.dispatchConfigurationChanged(config); 2688 } 2689 } 2690 } 2691 2692 /** 2693 * Return true if child is an ancestor of parent, (or equal to the parent). 2694 */ 2695 public static boolean isViewDescendantOf(View child, View parent) { 2696 if (child == parent) { 2697 return true; 2698 } 2699 2700 final ViewParent theParent = child.getParent(); 2701 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2702 } 2703 2704 private static void forceLayout(View view) { 2705 view.forceLayout(); 2706 if (view instanceof ViewGroup) { 2707 ViewGroup group = (ViewGroup) view; 2708 final int count = group.getChildCount(); 2709 for (int i = 0; i < count; i++) { 2710 forceLayout(group.getChildAt(i)); 2711 } 2712 } 2713 } 2714 2715 private final static int MSG_INVALIDATE = 1; 2716 private final static int MSG_INVALIDATE_RECT = 2; 2717 private final static int MSG_DIE = 3; 2718 private final static int MSG_RESIZED = 4; 2719 private final static int MSG_RESIZED_REPORT = 5; 2720 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2721 private final static int MSG_DISPATCH_KEY = 7; 2722 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2723 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2724 private final static int MSG_IME_FINISHED_EVENT = 10; 2725 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2726 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2727 private final static int MSG_CHECK_FOCUS = 13; 2728 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2729 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2730 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2731 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2732 private final static int MSG_UPDATE_CONFIGURATION = 18; 2733 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2734 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2735 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2736 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2737 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2738 private final static int MSG_INVALIDATE_WORLD = 24; 2739 2740 final class ViewRootHandler extends Handler { 2741 @Override 2742 public String getMessageName(Message message) { 2743 switch (message.what) { 2744 case MSG_INVALIDATE: 2745 return "MSG_INVALIDATE"; 2746 case MSG_INVALIDATE_RECT: 2747 return "MSG_INVALIDATE_RECT"; 2748 case MSG_DIE: 2749 return "MSG_DIE"; 2750 case MSG_RESIZED: 2751 return "MSG_RESIZED"; 2752 case MSG_RESIZED_REPORT: 2753 return "MSG_RESIZED_REPORT"; 2754 case MSG_WINDOW_FOCUS_CHANGED: 2755 return "MSG_WINDOW_FOCUS_CHANGED"; 2756 case MSG_DISPATCH_KEY: 2757 return "MSG_DISPATCH_KEY"; 2758 case MSG_DISPATCH_APP_VISIBILITY: 2759 return "MSG_DISPATCH_APP_VISIBILITY"; 2760 case MSG_DISPATCH_GET_NEW_SURFACE: 2761 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2762 case MSG_IME_FINISHED_EVENT: 2763 return "MSG_IME_FINISHED_EVENT"; 2764 case MSG_DISPATCH_KEY_FROM_IME: 2765 return "MSG_DISPATCH_KEY_FROM_IME"; 2766 case MSG_FINISH_INPUT_CONNECTION: 2767 return "MSG_FINISH_INPUT_CONNECTION"; 2768 case MSG_CHECK_FOCUS: 2769 return "MSG_CHECK_FOCUS"; 2770 case MSG_CLOSE_SYSTEM_DIALOGS: 2771 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2772 case MSG_DISPATCH_DRAG_EVENT: 2773 return "MSG_DISPATCH_DRAG_EVENT"; 2774 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2775 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2776 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2777 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2778 case MSG_UPDATE_CONFIGURATION: 2779 return "MSG_UPDATE_CONFIGURATION"; 2780 case MSG_PROCESS_INPUT_EVENTS: 2781 return "MSG_PROCESS_INPUT_EVENTS"; 2782 case MSG_DISPATCH_SCREEN_STATE: 2783 return "MSG_DISPATCH_SCREEN_STATE"; 2784 case MSG_INVALIDATE_DISPLAY_LIST: 2785 return "MSG_INVALIDATE_DISPLAY_LIST"; 2786 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2787 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2788 case MSG_DISPATCH_DONE_ANIMATING: 2789 return "MSG_DISPATCH_DONE_ANIMATING"; 2790 } 2791 return super.getMessageName(message); 2792 } 2793 2794 @Override 2795 public void handleMessage(Message msg) { 2796 switch (msg.what) { 2797 case MSG_INVALIDATE: 2798 ((View) msg.obj).invalidate(); 2799 break; 2800 case MSG_INVALIDATE_RECT: 2801 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2802 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2803 info.release(); 2804 break; 2805 case MSG_IME_FINISHED_EVENT: 2806 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2807 break; 2808 case MSG_PROCESS_INPUT_EVENTS: 2809 mProcessInputEventsScheduled = false; 2810 doProcessInputEvents(); 2811 break; 2812 case MSG_DISPATCH_APP_VISIBILITY: 2813 handleAppVisibility(msg.arg1 != 0); 2814 break; 2815 case MSG_DISPATCH_GET_NEW_SURFACE: 2816 handleGetNewSurface(); 2817 break; 2818 case MSG_RESIZED: 2819 ResizedInfo ri = (ResizedInfo)msg.obj; 2820 2821 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2822 && mPendingContentInsets.equals(ri.contentInsets) 2823 && mPendingVisibleInsets.equals(ri.visibleInsets) 2824 && ((ResizedInfo)msg.obj).newConfig == null) { 2825 break; 2826 } 2827 // fall through... 2828 case MSG_RESIZED_REPORT: 2829 if (mAdded) { 2830 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2831 if (config != null) { 2832 updateConfiguration(config, false); 2833 } 2834 mWinFrame.left = 0; 2835 mWinFrame.right = msg.arg1; 2836 mWinFrame.top = 0; 2837 mWinFrame.bottom = msg.arg2; 2838 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2839 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2840 if (msg.what == MSG_RESIZED_REPORT) { 2841 mReportNextDraw = true; 2842 } 2843 2844 if (mView != null) { 2845 forceLayout(mView); 2846 } 2847 requestLayout(); 2848 } 2849 break; 2850 case MSG_WINDOW_FOCUS_CHANGED: { 2851 if (mAdded) { 2852 boolean hasWindowFocus = msg.arg1 != 0; 2853 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2854 2855 profileRendering(hasWindowFocus); 2856 2857 if (hasWindowFocus) { 2858 boolean inTouchMode = msg.arg2 != 0; 2859 ensureTouchModeLocally(inTouchMode); 2860 2861 if (mAttachInfo.mHardwareRenderer != null && 2862 mSurface != null && mSurface.isValid()) { 2863 mFullRedrawNeeded = true; 2864 try { 2865 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2866 mHolder); 2867 } catch (Surface.OutOfResourcesException e) { 2868 Log.e(TAG, "OutOfResourcesException locking surface", e); 2869 try { 2870 if (!sWindowSession.outOfMemory(mWindow)) { 2871 Slog.w(TAG, "No processes killed for memory; killing self"); 2872 Process.killProcess(Process.myPid()); 2873 } 2874 } catch (RemoteException ex) { 2875 } 2876 // Retry in a bit. 2877 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2878 return; 2879 } 2880 } 2881 } 2882 2883 mLastWasImTarget = WindowManager.LayoutParams 2884 .mayUseInputMethod(mWindowAttributes.flags); 2885 2886 InputMethodManager imm = InputMethodManager.peekInstance(); 2887 if (mView != null) { 2888 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2889 imm.startGettingWindowFocus(mView); 2890 } 2891 mAttachInfo.mKeyDispatchState.reset(); 2892 mView.dispatchWindowFocusChanged(hasWindowFocus); 2893 } 2894 2895 // Note: must be done after the focus change callbacks, 2896 // so all of the view state is set up correctly. 2897 if (hasWindowFocus) { 2898 if (imm != null && mLastWasImTarget) { 2899 imm.onWindowFocus(mView, mView.findFocus(), 2900 mWindowAttributes.softInputMode, 2901 !mHasHadWindowFocus, mWindowAttributes.flags); 2902 } 2903 // Clear the forward bit. We can just do this directly, since 2904 // the window manager doesn't care about it. 2905 mWindowAttributes.softInputMode &= 2906 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2907 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2908 .softInputMode &= 2909 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2910 mHasHadWindowFocus = true; 2911 } 2912 2913 setAccessibilityFocusedHost(null); 2914 2915 if (mView != null && mAccessibilityManager.isEnabled()) { 2916 if (hasWindowFocus) { 2917 mView.sendAccessibilityEvent( 2918 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2919 } 2920 } 2921 } 2922 } break; 2923 case MSG_DIE: 2924 doDie(); 2925 break; 2926 case MSG_DISPATCH_KEY: { 2927 KeyEvent event = (KeyEvent)msg.obj; 2928 enqueueInputEvent(event, null, 0, true); 2929 } break; 2930 case MSG_DISPATCH_KEY_FROM_IME: { 2931 if (LOCAL_LOGV) Log.v( 2932 TAG, "Dispatching key " 2933 + msg.obj + " from IME to " + mView); 2934 KeyEvent event = (KeyEvent)msg.obj; 2935 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2936 // The IME is trying to say this event is from the 2937 // system! Bad bad bad! 2938 //noinspection UnusedAssignment 2939 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2940 } 2941 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2942 } break; 2943 case MSG_FINISH_INPUT_CONNECTION: { 2944 InputMethodManager imm = InputMethodManager.peekInstance(); 2945 if (imm != null) { 2946 imm.reportFinishInputConnection((InputConnection)msg.obj); 2947 } 2948 } break; 2949 case MSG_CHECK_FOCUS: { 2950 InputMethodManager imm = InputMethodManager.peekInstance(); 2951 if (imm != null) { 2952 imm.checkFocus(); 2953 } 2954 } break; 2955 case MSG_CLOSE_SYSTEM_DIALOGS: { 2956 if (mView != null) { 2957 mView.onCloseSystemDialogs((String)msg.obj); 2958 } 2959 } break; 2960 case MSG_DISPATCH_DRAG_EVENT: 2961 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2962 DragEvent event = (DragEvent)msg.obj; 2963 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2964 handleDragEvent(event); 2965 } break; 2966 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2967 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2968 } break; 2969 case MSG_UPDATE_CONFIGURATION: { 2970 Configuration config = (Configuration)msg.obj; 2971 if (config.isOtherSeqNewer(mLastConfiguration)) { 2972 config = mLastConfiguration; 2973 } 2974 updateConfiguration(config, false); 2975 } break; 2976 case MSG_DISPATCH_SCREEN_STATE: { 2977 if (mView != null) { 2978 handleScreenStateChange(msg.arg1 == 1); 2979 } 2980 } break; 2981 case MSG_INVALIDATE_DISPLAY_LIST: { 2982 invalidateDisplayLists(); 2983 } break; 2984 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2985 setAccessibilityFocusedHost(null); 2986 } break; 2987 case MSG_DISPATCH_DONE_ANIMATING: { 2988 handleDispatchDoneAnimating(); 2989 } break; 2990 case MSG_INVALIDATE_WORLD: { 2991 invalidateWorld(mView); 2992 } break; 2993 } 2994 } 2995 } 2996 2997 final ViewRootHandler mHandler = new ViewRootHandler(); 2998 2999 /** 3000 * Something in the current window tells us we need to change the touch mode. For 3001 * example, we are not in touch mode, and the user touches the screen. 3002 * 3003 * If the touch mode has changed, tell the window manager, and handle it locally. 3004 * 3005 * @param inTouchMode Whether we want to be in touch mode. 3006 * @return True if the touch mode changed and focus changed was changed as a result 3007 */ 3008 boolean ensureTouchMode(boolean inTouchMode) { 3009 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3010 + "touch mode is " + mAttachInfo.mInTouchMode); 3011 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3012 3013 // tell the window manager 3014 try { 3015 sWindowSession.setInTouchMode(inTouchMode); 3016 } catch (RemoteException e) { 3017 throw new RuntimeException(e); 3018 } 3019 3020 // handle the change 3021 return ensureTouchModeLocally(inTouchMode); 3022 } 3023 3024 /** 3025 * Ensure that the touch mode for this window is set, and if it is changing, 3026 * take the appropriate action. 3027 * @param inTouchMode Whether we want to be in touch mode. 3028 * @return True if the touch mode changed and focus changed was changed as a result 3029 */ 3030 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3031 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3032 + "touch mode is " + mAttachInfo.mInTouchMode); 3033 3034 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3035 3036 mAttachInfo.mInTouchMode = inTouchMode; 3037 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3038 3039 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3040 } 3041 3042 private boolean enterTouchMode() { 3043 if (mView != null) { 3044 if (mView.hasFocus()) { 3045 // note: not relying on mFocusedView here because this could 3046 // be when the window is first being added, and mFocused isn't 3047 // set yet. 3048 final View focused = mView.findFocus(); 3049 if (focused != null && !focused.isFocusableInTouchMode()) { 3050 3051 final ViewGroup ancestorToTakeFocus = 3052 findAncestorToTakeFocusInTouchMode(focused); 3053 if (ancestorToTakeFocus != null) { 3054 // there is an ancestor that wants focus after its descendants that 3055 // is focusable in touch mode.. give it focus 3056 return ancestorToTakeFocus.requestFocus(); 3057 } else { 3058 // nothing appropriate to have focus in touch mode, clear it out 3059 mView.unFocus(); 3060 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3061 mFocusedView = null; 3062 mOldFocusedView = null; 3063 return true; 3064 } 3065 } 3066 } 3067 } 3068 return false; 3069 } 3070 3071 /** 3072 * Find an ancestor of focused that wants focus after its descendants and is 3073 * focusable in touch mode. 3074 * @param focused The currently focused view. 3075 * @return An appropriate view, or null if no such view exists. 3076 */ 3077 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3078 ViewParent parent = focused.getParent(); 3079 while (parent instanceof ViewGroup) { 3080 final ViewGroup vgParent = (ViewGroup) parent; 3081 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3082 && vgParent.isFocusableInTouchMode()) { 3083 return vgParent; 3084 } 3085 if (vgParent.isRootNamespace()) { 3086 return null; 3087 } else { 3088 parent = vgParent.getParent(); 3089 } 3090 } 3091 return null; 3092 } 3093 3094 private boolean leaveTouchMode() { 3095 if (mView != null) { 3096 if (mView.hasFocus()) { 3097 // i learned the hard way to not trust mFocusedView :) 3098 mFocusedView = mView.findFocus(); 3099 if (!(mFocusedView instanceof ViewGroup)) { 3100 // some view has focus, let it keep it 3101 return false; 3102 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3103 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3104 // some view group has focus, and doesn't prefer its children 3105 // over itself for focus, so let them keep it. 3106 return false; 3107 } 3108 } 3109 3110 // find the best view to give focus to in this brave new non-touch-mode 3111 // world 3112 final View focused = focusSearch(null, View.FOCUS_DOWN); 3113 if (focused != null) { 3114 return focused.requestFocus(View.FOCUS_DOWN); 3115 } 3116 } 3117 return false; 3118 } 3119 3120 private void deliverInputEvent(QueuedInputEvent q) { 3121 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3122 try { 3123 if (q.mEvent instanceof KeyEvent) { 3124 deliverKeyEvent(q); 3125 } else { 3126 final int source = q.mEvent.getSource(); 3127 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3128 deliverPointerEvent(q); 3129 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3130 deliverTrackballEvent(q); 3131 } else { 3132 deliverGenericMotionEvent(q); 3133 } 3134 } 3135 } finally { 3136 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3137 } 3138 } 3139 3140 private void deliverPointerEvent(QueuedInputEvent q) { 3141 final MotionEvent event = (MotionEvent)q.mEvent; 3142 final boolean isTouchEvent = event.isTouchEvent(); 3143 if (mInputEventConsistencyVerifier != null) { 3144 if (isTouchEvent) { 3145 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3146 } else { 3147 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3148 } 3149 } 3150 3151 // If there is no view, then the event will not be handled. 3152 if (mView == null || !mAdded) { 3153 finishInputEvent(q, false); 3154 return; 3155 } 3156 3157 // Translate the pointer event for compatibility, if needed. 3158 if (mTranslator != null) { 3159 mTranslator.translateEventInScreenToAppWindow(event); 3160 } 3161 3162 // Enter touch mode on down or scroll. 3163 final int action = event.getAction(); 3164 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3165 ensureTouchMode(true); 3166 } 3167 3168 // Offset the scroll position. 3169 if (mCurScrollY != 0) { 3170 event.offsetLocation(0, mCurScrollY); 3171 } 3172 if (MEASURE_LATENCY) { 3173 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3174 } 3175 3176 // Remember the touch position for possible drag-initiation. 3177 if (isTouchEvent) { 3178 mLastTouchPoint.x = event.getRawX(); 3179 mLastTouchPoint.y = event.getRawY(); 3180 } 3181 3182 // Dispatch touch to view hierarchy. 3183 boolean handled = mView.dispatchPointerEvent(event); 3184 if (MEASURE_LATENCY) { 3185 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3186 } 3187 if (handled) { 3188 finishInputEvent(q, true); 3189 return; 3190 } 3191 3192 // Pointer event was unhandled. 3193 finishInputEvent(q, false); 3194 } 3195 3196 private void deliverTrackballEvent(QueuedInputEvent q) { 3197 final MotionEvent event = (MotionEvent)q.mEvent; 3198 if (mInputEventConsistencyVerifier != null) { 3199 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3200 } 3201 3202 // If there is no view, then the event will not be handled. 3203 if (mView == null || !mAdded) { 3204 finishInputEvent(q, false); 3205 return; 3206 } 3207 3208 // Deliver the trackball event to the view. 3209 if (mView.dispatchTrackballEvent(event)) { 3210 // If we reach this, we delivered a trackball event to mView and 3211 // mView consumed it. Because we will not translate the trackball 3212 // event into a key event, touch mode will not exit, so we exit 3213 // touch mode here. 3214 ensureTouchMode(false); 3215 3216 finishInputEvent(q, true); 3217 mLastTrackballTime = Integer.MIN_VALUE; 3218 return; 3219 } 3220 3221 // Translate the trackball event into DPAD keys and try to deliver those. 3222 final TrackballAxis x = mTrackballAxisX; 3223 final TrackballAxis y = mTrackballAxisY; 3224 3225 long curTime = SystemClock.uptimeMillis(); 3226 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3227 // It has been too long since the last movement, 3228 // so restart at the beginning. 3229 x.reset(0); 3230 y.reset(0); 3231 mLastTrackballTime = curTime; 3232 } 3233 3234 final int action = event.getAction(); 3235 final int metaState = event.getMetaState(); 3236 switch (action) { 3237 case MotionEvent.ACTION_DOWN: 3238 x.reset(2); 3239 y.reset(2); 3240 enqueueInputEvent(new KeyEvent(curTime, curTime, 3241 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3242 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3243 InputDevice.SOURCE_KEYBOARD)); 3244 break; 3245 case MotionEvent.ACTION_UP: 3246 x.reset(2); 3247 y.reset(2); 3248 enqueueInputEvent(new KeyEvent(curTime, curTime, 3249 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3250 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3251 InputDevice.SOURCE_KEYBOARD)); 3252 break; 3253 } 3254 3255 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3256 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3257 + " move=" + event.getX() 3258 + " / Y=" + y.position + " step=" 3259 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3260 + " move=" + event.getY()); 3261 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3262 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3263 3264 // Generate DPAD events based on the trackball movement. 3265 // We pick the axis that has moved the most as the direction of 3266 // the DPAD. When we generate DPAD events for one axis, then the 3267 // other axis is reset -- we don't want to perform DPAD jumps due 3268 // to slight movements in the trackball when making major movements 3269 // along the other axis. 3270 int keycode = 0; 3271 int movement = 0; 3272 float accel = 1; 3273 if (xOff > yOff) { 3274 movement = x.generate((2/event.getXPrecision())); 3275 if (movement != 0) { 3276 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3277 : KeyEvent.KEYCODE_DPAD_LEFT; 3278 accel = x.acceleration; 3279 y.reset(2); 3280 } 3281 } else if (yOff > 0) { 3282 movement = y.generate((2/event.getYPrecision())); 3283 if (movement != 0) { 3284 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3285 : KeyEvent.KEYCODE_DPAD_UP; 3286 accel = y.acceleration; 3287 x.reset(2); 3288 } 3289 } 3290 3291 if (keycode != 0) { 3292 if (movement < 0) movement = -movement; 3293 int accelMovement = (int)(movement * accel); 3294 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3295 + " accelMovement=" + accelMovement 3296 + " accel=" + accel); 3297 if (accelMovement > movement) { 3298 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3299 + keycode); 3300 movement--; 3301 int repeatCount = accelMovement - movement; 3302 enqueueInputEvent(new KeyEvent(curTime, curTime, 3303 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3304 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3305 InputDevice.SOURCE_KEYBOARD)); 3306 } 3307 while (movement > 0) { 3308 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3309 + keycode); 3310 movement--; 3311 curTime = SystemClock.uptimeMillis(); 3312 enqueueInputEvent(new KeyEvent(curTime, curTime, 3313 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3314 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3315 InputDevice.SOURCE_KEYBOARD)); 3316 enqueueInputEvent(new KeyEvent(curTime, curTime, 3317 KeyEvent.ACTION_UP, keycode, 0, metaState, 3318 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3319 InputDevice.SOURCE_KEYBOARD)); 3320 } 3321 mLastTrackballTime = curTime; 3322 } 3323 3324 // Unfortunately we can't tell whether the application consumed the keys, so 3325 // we always consider the trackball event handled. 3326 finishInputEvent(q, true); 3327 } 3328 3329 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3330 final MotionEvent event = (MotionEvent)q.mEvent; 3331 if (mInputEventConsistencyVerifier != null) { 3332 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3333 } 3334 3335 final int source = event.getSource(); 3336 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3337 3338 // If there is no view, then the event will not be handled. 3339 if (mView == null || !mAdded) { 3340 if (isJoystick) { 3341 updateJoystickDirection(event, false); 3342 } 3343 finishInputEvent(q, false); 3344 return; 3345 } 3346 3347 // Deliver the event to the view. 3348 if (mView.dispatchGenericMotionEvent(event)) { 3349 if (isJoystick) { 3350 updateJoystickDirection(event, false); 3351 } 3352 finishInputEvent(q, true); 3353 return; 3354 } 3355 3356 if (isJoystick) { 3357 // Translate the joystick event into DPAD keys and try to deliver those. 3358 updateJoystickDirection(event, true); 3359 finishInputEvent(q, true); 3360 } else { 3361 finishInputEvent(q, false); 3362 } 3363 } 3364 3365 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3366 final long time = event.getEventTime(); 3367 final int metaState = event.getMetaState(); 3368 final int deviceId = event.getDeviceId(); 3369 final int source = event.getSource(); 3370 3371 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3372 if (xDirection == 0) { 3373 xDirection = joystickAxisValueToDirection(event.getX()); 3374 } 3375 3376 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3377 if (yDirection == 0) { 3378 yDirection = joystickAxisValueToDirection(event.getY()); 3379 } 3380 3381 if (xDirection != mLastJoystickXDirection) { 3382 if (mLastJoystickXKeyCode != 0) { 3383 enqueueInputEvent(new KeyEvent(time, time, 3384 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3385 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3386 mLastJoystickXKeyCode = 0; 3387 } 3388 3389 mLastJoystickXDirection = xDirection; 3390 3391 if (xDirection != 0 && synthesizeNewKeys) { 3392 mLastJoystickXKeyCode = xDirection > 0 3393 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3394 enqueueInputEvent(new KeyEvent(time, time, 3395 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3396 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3397 } 3398 } 3399 3400 if (yDirection != mLastJoystickYDirection) { 3401 if (mLastJoystickYKeyCode != 0) { 3402 enqueueInputEvent(new KeyEvent(time, time, 3403 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3404 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3405 mLastJoystickYKeyCode = 0; 3406 } 3407 3408 mLastJoystickYDirection = yDirection; 3409 3410 if (yDirection != 0 && synthesizeNewKeys) { 3411 mLastJoystickYKeyCode = yDirection > 0 3412 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3413 enqueueInputEvent(new KeyEvent(time, time, 3414 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3415 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3416 } 3417 } 3418 } 3419 3420 private static int joystickAxisValueToDirection(float value) { 3421 if (value >= 0.5f) { 3422 return 1; 3423 } else if (value <= -0.5f) { 3424 return -1; 3425 } else { 3426 return 0; 3427 } 3428 } 3429 3430 /** 3431 * Returns true if the key is used for keyboard navigation. 3432 * @param keyEvent The key event. 3433 * @return True if the key is used for keyboard navigation. 3434 */ 3435 private static boolean isNavigationKey(KeyEvent keyEvent) { 3436 switch (keyEvent.getKeyCode()) { 3437 case KeyEvent.KEYCODE_DPAD_LEFT: 3438 case KeyEvent.KEYCODE_DPAD_RIGHT: 3439 case KeyEvent.KEYCODE_DPAD_UP: 3440 case KeyEvent.KEYCODE_DPAD_DOWN: 3441 case KeyEvent.KEYCODE_DPAD_CENTER: 3442 case KeyEvent.KEYCODE_PAGE_UP: 3443 case KeyEvent.KEYCODE_PAGE_DOWN: 3444 case KeyEvent.KEYCODE_MOVE_HOME: 3445 case KeyEvent.KEYCODE_MOVE_END: 3446 case KeyEvent.KEYCODE_TAB: 3447 case KeyEvent.KEYCODE_SPACE: 3448 case KeyEvent.KEYCODE_ENTER: 3449 return true; 3450 } 3451 return false; 3452 } 3453 3454 /** 3455 * Returns true if the key is used for typing. 3456 * @param keyEvent The key event. 3457 * @return True if the key is used for typing. 3458 */ 3459 private static boolean isTypingKey(KeyEvent keyEvent) { 3460 return keyEvent.getUnicodeChar() > 0; 3461 } 3462 3463 /** 3464 * See if the key event means we should leave touch mode (and leave touch mode if so). 3465 * @param event The key event. 3466 * @return Whether this key event should be consumed (meaning the act of 3467 * leaving touch mode alone is considered the event). 3468 */ 3469 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3470 // Only relevant in touch mode. 3471 if (!mAttachInfo.mInTouchMode) { 3472 return false; 3473 } 3474 3475 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3476 final int action = event.getAction(); 3477 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3478 return false; 3479 } 3480 3481 // Don't leave touch mode if the IME told us not to. 3482 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3483 return false; 3484 } 3485 3486 // If the key can be used for keyboard navigation then leave touch mode 3487 // and select a focused view if needed (in ensureTouchMode). 3488 // When a new focused view is selected, we consume the navigation key because 3489 // navigation doesn't make much sense unless a view already has focus so 3490 // the key's purpose is to set focus. 3491 if (isNavigationKey(event)) { 3492 return ensureTouchMode(false); 3493 } 3494 3495 // If the key can be used for typing then leave touch mode 3496 // and select a focused view if needed (in ensureTouchMode). 3497 // Always allow the view to process the typing key. 3498 if (isTypingKey(event)) { 3499 ensureTouchMode(false); 3500 return false; 3501 } 3502 3503 return false; 3504 } 3505 3506 private void deliverKeyEvent(QueuedInputEvent q) { 3507 final KeyEvent event = (KeyEvent)q.mEvent; 3508 if (mInputEventConsistencyVerifier != null) { 3509 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3510 } 3511 3512 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3513 // If there is no view, then the event will not be handled. 3514 if (mView == null || !mAdded) { 3515 finishInputEvent(q, false); 3516 return; 3517 } 3518 3519 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3520 3521 // Perform predispatching before the IME. 3522 if (mView.dispatchKeyEventPreIme(event)) { 3523 finishInputEvent(q, true); 3524 return; 3525 } 3526 3527 // Dispatch to the IME before propagating down the view hierarchy. 3528 // The IME will eventually call back into handleImeFinishedEvent. 3529 if (mLastWasImTarget) { 3530 InputMethodManager imm = InputMethodManager.peekInstance(); 3531 if (imm != null) { 3532 final int seq = event.getSequenceNumber(); 3533 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3534 + seq + " event=" + event); 3535 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3536 return; 3537 } 3538 } 3539 } 3540 3541 // Not dispatching to IME, continue with post IME actions. 3542 deliverKeyEventPostIme(q); 3543 } 3544 3545 void handleImeFinishedEvent(int seq, boolean handled) { 3546 final QueuedInputEvent q = mCurrentInputEvent; 3547 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3548 final KeyEvent event = (KeyEvent)q.mEvent; 3549 if (DEBUG_IMF) { 3550 Log.v(TAG, "IME finished event: seq=" + seq 3551 + " handled=" + handled + " event=" + event); 3552 } 3553 if (handled) { 3554 finishInputEvent(q, true); 3555 } else { 3556 deliverKeyEventPostIme(q); 3557 } 3558 } else { 3559 if (DEBUG_IMF) { 3560 Log.v(TAG, "IME finished event: seq=" + seq 3561 + " handled=" + handled + ", event not found!"); 3562 } 3563 } 3564 } 3565 3566 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3567 final KeyEvent event = (KeyEvent)q.mEvent; 3568 3569 // If the view went away, then the event will not be handled. 3570 if (mView == null || !mAdded) { 3571 finishInputEvent(q, false); 3572 return; 3573 } 3574 3575 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3576 if (checkForLeavingTouchModeAndConsume(event)) { 3577 finishInputEvent(q, true); 3578 return; 3579 } 3580 3581 // Make sure the fallback event policy sees all keys that will be delivered to the 3582 // view hierarchy. 3583 mFallbackEventHandler.preDispatchKeyEvent(event); 3584 3585 // Deliver the key to the view hierarchy. 3586 if (mView.dispatchKeyEvent(event)) { 3587 finishInputEvent(q, true); 3588 return; 3589 } 3590 3591 // If the Control modifier is held, try to interpret the key as a shortcut. 3592 if (event.getAction() == KeyEvent.ACTION_DOWN 3593 && event.isCtrlPressed() 3594 && event.getRepeatCount() == 0 3595 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3596 if (mView.dispatchKeyShortcutEvent(event)) { 3597 finishInputEvent(q, true); 3598 return; 3599 } 3600 } 3601 3602 // Apply the fallback event policy. 3603 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3604 finishInputEvent(q, true); 3605 return; 3606 } 3607 3608 // Handle automatic focus changes. 3609 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3610 int direction = 0; 3611 switch (event.getKeyCode()) { 3612 case KeyEvent.KEYCODE_DPAD_LEFT: 3613 if (event.hasNoModifiers()) { 3614 direction = View.FOCUS_LEFT; 3615 } 3616 break; 3617 case KeyEvent.KEYCODE_DPAD_RIGHT: 3618 if (event.hasNoModifiers()) { 3619 direction = View.FOCUS_RIGHT; 3620 } 3621 break; 3622 case KeyEvent.KEYCODE_DPAD_UP: 3623 if (event.hasNoModifiers()) { 3624 direction = View.FOCUS_UP; 3625 } 3626 break; 3627 case KeyEvent.KEYCODE_DPAD_DOWN: 3628 if (event.hasNoModifiers()) { 3629 direction = View.FOCUS_DOWN; 3630 } 3631 break; 3632 case KeyEvent.KEYCODE_TAB: 3633 if (event.hasNoModifiers()) { 3634 direction = View.FOCUS_FORWARD; 3635 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3636 direction = View.FOCUS_BACKWARD; 3637 } 3638 break; 3639 } 3640 if (direction != 0) { 3641 View focused = mView.findFocus(); 3642 if (focused != null) { 3643 View v = focused.focusSearch(direction); 3644 if (v != null && v != focused) { 3645 // do the math the get the interesting rect 3646 // of previous focused into the coord system of 3647 // newly focused view 3648 focused.getFocusedRect(mTempRect); 3649 if (mView instanceof ViewGroup) { 3650 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3651 focused, mTempRect); 3652 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3653 v, mTempRect); 3654 } 3655 if (v.requestFocus(direction, mTempRect)) { 3656 playSoundEffect(SoundEffectConstants 3657 .getContantForFocusDirection(direction)); 3658 finishInputEvent(q, true); 3659 return; 3660 } 3661 } 3662 3663 // Give the focused view a last chance to handle the dpad key. 3664 if (mView.dispatchUnhandledMove(focused, direction)) { 3665 finishInputEvent(q, true); 3666 return; 3667 } 3668 } 3669 } 3670 } 3671 3672 // Key was unhandled. 3673 finishInputEvent(q, false); 3674 } 3675 3676 /* drag/drop */ 3677 void setLocalDragState(Object obj) { 3678 mLocalDragState = obj; 3679 } 3680 3681 private void handleDragEvent(DragEvent event) { 3682 // From the root, only drag start/end/location are dispatched. entered/exited 3683 // are determined and dispatched by the viewgroup hierarchy, who then report 3684 // that back here for ultimate reporting back to the framework. 3685 if (mView != null && mAdded) { 3686 final int what = event.mAction; 3687 3688 if (what == DragEvent.ACTION_DRAG_EXITED) { 3689 // A direct EXITED event means that the window manager knows we've just crossed 3690 // a window boundary, so the current drag target within this one must have 3691 // just been exited. Send it the usual notifications and then we're done 3692 // for now. 3693 mView.dispatchDragEvent(event); 3694 } else { 3695 // Cache the drag description when the operation starts, then fill it in 3696 // on subsequent calls as a convenience 3697 if (what == DragEvent.ACTION_DRAG_STARTED) { 3698 mCurrentDragView = null; // Start the current-recipient tracking 3699 mDragDescription = event.mClipDescription; 3700 } else { 3701 event.mClipDescription = mDragDescription; 3702 } 3703 3704 // For events with a [screen] location, translate into window coordinates 3705 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3706 mDragPoint.set(event.mX, event.mY); 3707 if (mTranslator != null) { 3708 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3709 } 3710 3711 if (mCurScrollY != 0) { 3712 mDragPoint.offset(0, mCurScrollY); 3713 } 3714 3715 event.mX = mDragPoint.x; 3716 event.mY = mDragPoint.y; 3717 } 3718 3719 // Remember who the current drag target is pre-dispatch 3720 final View prevDragView = mCurrentDragView; 3721 3722 // Now dispatch the drag/drop event 3723 boolean result = mView.dispatchDragEvent(event); 3724 3725 // If we changed apparent drag target, tell the OS about it 3726 if (prevDragView != mCurrentDragView) { 3727 try { 3728 if (prevDragView != null) { 3729 sWindowSession.dragRecipientExited(mWindow); 3730 } 3731 if (mCurrentDragView != null) { 3732 sWindowSession.dragRecipientEntered(mWindow); 3733 } 3734 } catch (RemoteException e) { 3735 Slog.e(TAG, "Unable to note drag target change"); 3736 } 3737 } 3738 3739 // Report the drop result when we're done 3740 if (what == DragEvent.ACTION_DROP) { 3741 mDragDescription = null; 3742 try { 3743 Log.i(TAG, "Reporting drop result: " + result); 3744 sWindowSession.reportDropResult(mWindow, result); 3745 } catch (RemoteException e) { 3746 Log.e(TAG, "Unable to report drop result"); 3747 } 3748 } 3749 3750 // When the drag operation ends, release any local state object 3751 // that may have been in use 3752 if (what == DragEvent.ACTION_DRAG_ENDED) { 3753 setLocalDragState(null); 3754 } 3755 } 3756 } 3757 event.recycle(); 3758 } 3759 3760 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3761 if (mSeq != args.seq) { 3762 // The sequence has changed, so we need to update our value and make 3763 // sure to do a traversal afterward so the window manager is given our 3764 // most recent data. 3765 mSeq = args.seq; 3766 mAttachInfo.mForceReportNewAttributes = true; 3767 scheduleTraversals(); 3768 } 3769 if (mView == null) return; 3770 if (args.localChanges != 0) { 3771 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3772 } 3773 if (mAttachInfo != null) { 3774 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3775 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3776 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3777 mView.dispatchSystemUiVisibilityChanged(visibility); 3778 } 3779 } 3780 } 3781 3782 public void handleDispatchDoneAnimating() { 3783 if (mWindowsAnimating) { 3784 mWindowsAnimating = false; 3785 if (!mDirty.isEmpty() || mIsAnimating) { 3786 scheduleTraversals(); 3787 } 3788 } 3789 } 3790 3791 public void getLastTouchPoint(Point outLocation) { 3792 outLocation.x = (int) mLastTouchPoint.x; 3793 outLocation.y = (int) mLastTouchPoint.y; 3794 } 3795 3796 public void setDragFocus(View newDragTarget) { 3797 if (mCurrentDragView != newDragTarget) { 3798 mCurrentDragView = newDragTarget; 3799 } 3800 } 3801 3802 private AudioManager getAudioManager() { 3803 if (mView == null) { 3804 throw new IllegalStateException("getAudioManager called when there is no mView"); 3805 } 3806 if (mAudioManager == null) { 3807 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3808 } 3809 return mAudioManager; 3810 } 3811 3812 public AccessibilityInteractionController getAccessibilityInteractionController() { 3813 if (mView == null) { 3814 throw new IllegalStateException("getAccessibilityInteractionController" 3815 + " called when there is no mView"); 3816 } 3817 if (mAccessibilityInteractionController == null) { 3818 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3819 } 3820 return mAccessibilityInteractionController; 3821 } 3822 3823 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3824 boolean insetsPending) throws RemoteException { 3825 3826 float appScale = mAttachInfo.mApplicationScale; 3827 boolean restore = false; 3828 if (params != null && mTranslator != null) { 3829 restore = true; 3830 params.backup(); 3831 mTranslator.translateWindowLayout(params); 3832 } 3833 if (params != null) { 3834 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3835 } 3836 mPendingConfiguration.seq = 0; 3837 //Log.d(TAG, ">>>>>> CALLING relayout"); 3838 if (params != null && mOrigWindowType != params.type) { 3839 // For compatibility with old apps, don't crash here. 3840 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3841 Slog.w(TAG, "Window type can not be changed after " 3842 + "the window is added; ignoring change of " + mView); 3843 params.type = mOrigWindowType; 3844 } 3845 } 3846 int relayoutResult = sWindowSession.relayout( 3847 mWindow, mSeq, params, 3848 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3849 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3850 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3851 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3852 mPendingConfiguration, mSurface); 3853 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3854 if (restore) { 3855 params.restore(); 3856 } 3857 3858 if (mTranslator != null) { 3859 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3860 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3861 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3862 } 3863 return relayoutResult; 3864 } 3865 3866 /** 3867 * {@inheritDoc} 3868 */ 3869 public void playSoundEffect(int effectId) { 3870 checkThread(); 3871 3872 try { 3873 final AudioManager audioManager = getAudioManager(); 3874 3875 switch (effectId) { 3876 case SoundEffectConstants.CLICK: 3877 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3878 return; 3879 case SoundEffectConstants.NAVIGATION_DOWN: 3880 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3881 return; 3882 case SoundEffectConstants.NAVIGATION_LEFT: 3883 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3884 return; 3885 case SoundEffectConstants.NAVIGATION_RIGHT: 3886 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3887 return; 3888 case SoundEffectConstants.NAVIGATION_UP: 3889 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3890 return; 3891 default: 3892 throw new IllegalArgumentException("unknown effect id " + effectId + 3893 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3894 } 3895 } catch (IllegalStateException e) { 3896 // Exception thrown by getAudioManager() when mView is null 3897 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3898 e.printStackTrace(); 3899 } 3900 } 3901 3902 /** 3903 * {@inheritDoc} 3904 */ 3905 public boolean performHapticFeedback(int effectId, boolean always) { 3906 try { 3907 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3908 } catch (RemoteException e) { 3909 return false; 3910 } 3911 } 3912 3913 /** 3914 * {@inheritDoc} 3915 */ 3916 public View focusSearch(View focused, int direction) { 3917 checkThread(); 3918 if (!(mView instanceof ViewGroup)) { 3919 return null; 3920 } 3921 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3922 } 3923 3924 public void debug() { 3925 mView.debug(); 3926 } 3927 3928 public void dumpGfxInfo(int[] info) { 3929 if (mView != null) { 3930 getGfxInfo(mView, info); 3931 } else { 3932 info[0] = info[1] = 0; 3933 } 3934 } 3935 3936 private static void getGfxInfo(View view, int[] info) { 3937 DisplayList displayList = view.mDisplayList; 3938 info[0]++; 3939 if (displayList != null) { 3940 info[1] += displayList.getSize(); 3941 } 3942 3943 if (view instanceof ViewGroup) { 3944 ViewGroup group = (ViewGroup) view; 3945 3946 int count = group.getChildCount(); 3947 for (int i = 0; i < count; i++) { 3948 getGfxInfo(group.getChildAt(i), info); 3949 } 3950 } 3951 } 3952 3953 public void die(boolean immediate) { 3954 if (immediate) { 3955 doDie(); 3956 } else { 3957 if (!mIsDrawing) { 3958 destroyHardwareRenderer(); 3959 } else { 3960 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3961 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3962 } 3963 mHandler.sendEmptyMessage(MSG_DIE); 3964 } 3965 } 3966 3967 void doDie() { 3968 checkThread(); 3969 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3970 synchronized (this) { 3971 if (mAdded) { 3972 dispatchDetachedFromWindow(); 3973 } 3974 3975 if (mAdded && !mFirst) { 3976 destroyHardwareRenderer(); 3977 3978 if (mView != null) { 3979 int viewVisibility = mView.getVisibility(); 3980 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3981 if (mWindowAttributesChanged || viewVisibilityChanged) { 3982 // If layout params have been changed, first give them 3983 // to the window manager to make sure it has the correct 3984 // animation info. 3985 try { 3986 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3987 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3988 sWindowSession.finishDrawing(mWindow); 3989 } 3990 } catch (RemoteException e) { 3991 } 3992 } 3993 3994 mSurface.release(); 3995 } 3996 } 3997 3998 mAdded = false; 3999 } 4000 } 4001 4002 public void requestUpdateConfiguration(Configuration config) { 4003 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4004 mHandler.sendMessage(msg); 4005 } 4006 4007 public void loadSystemProperties() { 4008 boolean layout = SystemProperties.getBoolean( 4009 View.DEBUG_LAYOUT_PROPERTY, false); 4010 if (layout != mAttachInfo.mDebugLayout) { 4011 mAttachInfo.mDebugLayout = layout; 4012 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4013 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4014 } 4015 } 4016 } 4017 4018 private void destroyHardwareRenderer() { 4019 AttachInfo attachInfo = mAttachInfo; 4020 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4021 4022 if (hardwareRenderer != null) { 4023 if (mView != null) { 4024 hardwareRenderer.destroyHardwareResources(mView); 4025 } 4026 hardwareRenderer.destroy(true); 4027 hardwareRenderer.setRequested(false); 4028 4029 attachInfo.mHardwareRenderer = null; 4030 attachInfo.mHardwareAccelerated = false; 4031 } 4032 } 4033 4034 void dispatchImeFinishedEvent(int seq, boolean handled) { 4035 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4036 msg.arg1 = seq; 4037 msg.arg2 = handled ? 1 : 0; 4038 msg.setAsynchronous(true); 4039 mHandler.sendMessage(msg); 4040 } 4041 4042 public void dispatchFinishInputConnection(InputConnection connection) { 4043 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4044 mHandler.sendMessage(msg); 4045 } 4046 4047 public void dispatchResized(int w, int h, Rect contentInsets, 4048 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4049 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4050 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4051 + " visibleInsets=" + visibleInsets.toShortString() 4052 + " reportDraw=" + reportDraw); 4053 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4054 if (mTranslator != null) { 4055 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4056 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4057 w *= mTranslator.applicationInvertedScale; 4058 h *= mTranslator.applicationInvertedScale; 4059 } 4060 msg.arg1 = w; 4061 msg.arg2 = h; 4062 ResizedInfo ri = new ResizedInfo(); 4063 ri.contentInsets = new Rect(contentInsets); 4064 ri.visibleInsets = new Rect(visibleInsets); 4065 ri.newConfig = newConfig; 4066 msg.obj = ri; 4067 mHandler.sendMessage(msg); 4068 } 4069 4070 /** 4071 * Represents a pending input event that is waiting in a queue. 4072 * 4073 * Input events are processed in serial order by the timestamp specified by 4074 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4075 * one input event to the application at a time and waits for the application 4076 * to finish handling it before delivering the next one. 4077 * 4078 * However, because the application or IME can synthesize and inject multiple 4079 * key events at a time without going through the input dispatcher, we end up 4080 * needing a queue on the application's side. 4081 */ 4082 private static final class QueuedInputEvent { 4083 public static final int FLAG_DELIVER_POST_IME = 1; 4084 4085 public QueuedInputEvent mNext; 4086 4087 public InputEvent mEvent; 4088 public InputEventReceiver mReceiver; 4089 public int mFlags; 4090 } 4091 4092 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4093 InputEventReceiver receiver, int flags) { 4094 QueuedInputEvent q = mQueuedInputEventPool; 4095 if (q != null) { 4096 mQueuedInputEventPoolSize -= 1; 4097 mQueuedInputEventPool = q.mNext; 4098 q.mNext = null; 4099 } else { 4100 q = new QueuedInputEvent(); 4101 } 4102 4103 q.mEvent = event; 4104 q.mReceiver = receiver; 4105 q.mFlags = flags; 4106 return q; 4107 } 4108 4109 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4110 q.mEvent = null; 4111 q.mReceiver = null; 4112 4113 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4114 mQueuedInputEventPoolSize += 1; 4115 q.mNext = mQueuedInputEventPool; 4116 mQueuedInputEventPool = q; 4117 } 4118 } 4119 4120 void enqueueInputEvent(InputEvent event) { 4121 enqueueInputEvent(event, null, 0, false); 4122 } 4123 4124 void enqueueInputEvent(InputEvent event, 4125 InputEventReceiver receiver, int flags, boolean processImmediately) { 4126 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4127 4128 // Always enqueue the input event in order, regardless of its time stamp. 4129 // We do this because the application or the IME may inject key events 4130 // in response to touch events and we want to ensure that the injected keys 4131 // are processed in the order they were received and we cannot trust that 4132 // the time stamp of injected events are monotonic. 4133 QueuedInputEvent last = mFirstPendingInputEvent; 4134 if (last == null) { 4135 mFirstPendingInputEvent = q; 4136 } else { 4137 while (last.mNext != null) { 4138 last = last.mNext; 4139 } 4140 last.mNext = q; 4141 } 4142 4143 if (processImmediately) { 4144 doProcessInputEvents(); 4145 } else { 4146 scheduleProcessInputEvents(); 4147 } 4148 } 4149 4150 private void scheduleProcessInputEvents() { 4151 if (!mProcessInputEventsScheduled) { 4152 mProcessInputEventsScheduled = true; 4153 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4154 msg.setAsynchronous(true); 4155 mHandler.sendMessage(msg); 4156 } 4157 } 4158 4159 void doProcessInputEvents() { 4160 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4161 QueuedInputEvent q = mFirstPendingInputEvent; 4162 mFirstPendingInputEvent = q.mNext; 4163 q.mNext = null; 4164 mCurrentInputEvent = q; 4165 deliverInputEvent(q); 4166 } 4167 4168 // We are done processing all input events that we can process right now 4169 // so we can clear the pending flag immediately. 4170 if (mProcessInputEventsScheduled) { 4171 mProcessInputEventsScheduled = false; 4172 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4173 } 4174 } 4175 4176 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4177 if (q != mCurrentInputEvent) { 4178 throw new IllegalStateException("finished input event out of order"); 4179 } 4180 4181 if (q.mReceiver != null) { 4182 q.mReceiver.finishInputEvent(q.mEvent, handled); 4183 } else { 4184 q.mEvent.recycleIfNeededAfterDispatch(); 4185 } 4186 4187 recycleQueuedInputEvent(q); 4188 4189 mCurrentInputEvent = null; 4190 if (mFirstPendingInputEvent != null) { 4191 scheduleProcessInputEvents(); 4192 } 4193 } 4194 4195 void scheduleConsumeBatchedInput() { 4196 if (!mConsumeBatchedInputScheduled) { 4197 mConsumeBatchedInputScheduled = true; 4198 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4199 mConsumedBatchedInputRunnable, null); 4200 } 4201 } 4202 4203 void unscheduleConsumeBatchedInput() { 4204 if (mConsumeBatchedInputScheduled) { 4205 mConsumeBatchedInputScheduled = false; 4206 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4207 mConsumedBatchedInputRunnable, null); 4208 } 4209 } 4210 4211 void doConsumeBatchedInput(long frameTimeNanos) { 4212 if (mConsumeBatchedInputScheduled) { 4213 mConsumeBatchedInputScheduled = false; 4214 if (mInputEventReceiver != null) { 4215 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4216 } 4217 doProcessInputEvents(); 4218 } 4219 } 4220 4221 final class TraversalRunnable implements Runnable { 4222 @Override 4223 public void run() { 4224 doTraversal(); 4225 } 4226 } 4227 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4228 4229 final class WindowInputEventReceiver extends InputEventReceiver { 4230 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4231 super(inputChannel, looper); 4232 } 4233 4234 @Override 4235 public void onInputEvent(InputEvent event) { 4236 enqueueInputEvent(event, this, 0, true); 4237 } 4238 4239 @Override 4240 public void onBatchedInputEventPending() { 4241 scheduleConsumeBatchedInput(); 4242 } 4243 4244 @Override 4245 public void dispose() { 4246 unscheduleConsumeBatchedInput(); 4247 super.dispose(); 4248 } 4249 } 4250 WindowInputEventReceiver mInputEventReceiver; 4251 4252 final class ConsumeBatchedInputRunnable implements Runnable { 4253 @Override 4254 public void run() { 4255 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4256 } 4257 } 4258 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4259 new ConsumeBatchedInputRunnable(); 4260 boolean mConsumeBatchedInputScheduled; 4261 4262 final class InvalidateOnAnimationRunnable implements Runnable { 4263 private boolean mPosted; 4264 private ArrayList<View> mViews = new ArrayList<View>(); 4265 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4266 new ArrayList<AttachInfo.InvalidateInfo>(); 4267 private View[] mTempViews; 4268 private AttachInfo.InvalidateInfo[] mTempViewRects; 4269 4270 public void addView(View view) { 4271 synchronized (this) { 4272 mViews.add(view); 4273 postIfNeededLocked(); 4274 } 4275 } 4276 4277 public void addViewRect(AttachInfo.InvalidateInfo info) { 4278 synchronized (this) { 4279 mViewRects.add(info); 4280 postIfNeededLocked(); 4281 } 4282 } 4283 4284 public void removeView(View view) { 4285 synchronized (this) { 4286 mViews.remove(view); 4287 4288 for (int i = mViewRects.size(); i-- > 0; ) { 4289 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4290 if (info.target == view) { 4291 mViewRects.remove(i); 4292 info.release(); 4293 } 4294 } 4295 4296 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4297 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4298 mPosted = false; 4299 } 4300 } 4301 } 4302 4303 @Override 4304 public void run() { 4305 final int viewCount; 4306 final int viewRectCount; 4307 synchronized (this) { 4308 mPosted = false; 4309 4310 viewCount = mViews.size(); 4311 if (viewCount != 0) { 4312 mTempViews = mViews.toArray(mTempViews != null 4313 ? mTempViews : new View[viewCount]); 4314 mViews.clear(); 4315 } 4316 4317 viewRectCount = mViewRects.size(); 4318 if (viewRectCount != 0) { 4319 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4320 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4321 mViewRects.clear(); 4322 } 4323 } 4324 4325 for (int i = 0; i < viewCount; i++) { 4326 mTempViews[i].invalidate(); 4327 mTempViews[i] = null; 4328 } 4329 4330 for (int i = 0; i < viewRectCount; i++) { 4331 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4332 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4333 info.release(); 4334 } 4335 } 4336 4337 private void postIfNeededLocked() { 4338 if (!mPosted) { 4339 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4340 mPosted = true; 4341 } 4342 } 4343 } 4344 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4345 new InvalidateOnAnimationRunnable(); 4346 4347 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4348 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4349 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4350 } 4351 4352 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4353 long delayMilliseconds) { 4354 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4355 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4356 } 4357 4358 public void dispatchInvalidateOnAnimation(View view) { 4359 mInvalidateOnAnimationRunnable.addView(view); 4360 } 4361 4362 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4363 mInvalidateOnAnimationRunnable.addViewRect(info); 4364 } 4365 4366 public void enqueueDisplayList(DisplayList displayList) { 4367 mDisplayLists.add(displayList); 4368 4369 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4370 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4371 mHandler.sendMessage(msg); 4372 } 4373 4374 public void dequeueDisplayList(DisplayList displayList) { 4375 if (mDisplayLists.remove(displayList)) { 4376 displayList.invalidate(); 4377 if (mDisplayLists.size() == 0) { 4378 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4379 } 4380 } 4381 } 4382 4383 public void cancelInvalidate(View view) { 4384 mHandler.removeMessages(MSG_INVALIDATE, view); 4385 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4386 // them to the pool 4387 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4388 mInvalidateOnAnimationRunnable.removeView(view); 4389 } 4390 4391 public void dispatchKey(KeyEvent event) { 4392 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4393 msg.setAsynchronous(true); 4394 mHandler.sendMessage(msg); 4395 } 4396 4397 public void dispatchKeyFromIme(KeyEvent event) { 4398 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4399 msg.setAsynchronous(true); 4400 mHandler.sendMessage(msg); 4401 } 4402 4403 public void dispatchUnhandledKey(KeyEvent event) { 4404 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4405 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4406 final int keyCode = event.getKeyCode(); 4407 final int metaState = event.getMetaState(); 4408 4409 // Check for fallback actions specified by the key character map. 4410 KeyCharacterMap.FallbackAction fallbackAction = 4411 kcm.getFallbackAction(keyCode, metaState); 4412 if (fallbackAction != null) { 4413 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4414 KeyEvent fallbackEvent = KeyEvent.obtain( 4415 event.getDownTime(), event.getEventTime(), 4416 event.getAction(), fallbackAction.keyCode, 4417 event.getRepeatCount(), fallbackAction.metaState, 4418 event.getDeviceId(), event.getScanCode(), 4419 flags, event.getSource(), null); 4420 fallbackAction.recycle(); 4421 4422 dispatchKey(fallbackEvent); 4423 } 4424 } 4425 } 4426 4427 public void dispatchAppVisibility(boolean visible) { 4428 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4429 msg.arg1 = visible ? 1 : 0; 4430 mHandler.sendMessage(msg); 4431 } 4432 4433 public void dispatchScreenStateChange(boolean on) { 4434 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4435 msg.arg1 = on ? 1 : 0; 4436 mHandler.sendMessage(msg); 4437 } 4438 4439 public void dispatchGetNewSurface() { 4440 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4441 mHandler.sendMessage(msg); 4442 } 4443 4444 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4445 Message msg = Message.obtain(); 4446 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4447 msg.arg1 = hasFocus ? 1 : 0; 4448 msg.arg2 = inTouchMode ? 1 : 0; 4449 mHandler.sendMessage(msg); 4450 } 4451 4452 public void dispatchCloseSystemDialogs(String reason) { 4453 Message msg = Message.obtain(); 4454 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4455 msg.obj = reason; 4456 mHandler.sendMessage(msg); 4457 } 4458 4459 public void dispatchDragEvent(DragEvent event) { 4460 final int what; 4461 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4462 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4463 mHandler.removeMessages(what); 4464 } else { 4465 what = MSG_DISPATCH_DRAG_EVENT; 4466 } 4467 Message msg = mHandler.obtainMessage(what, event); 4468 mHandler.sendMessage(msg); 4469 } 4470 4471 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4472 int localValue, int localChanges) { 4473 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4474 args.seq = seq; 4475 args.globalVisibility = globalVisibility; 4476 args.localValue = localValue; 4477 args.localChanges = localChanges; 4478 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4479 } 4480 4481 public void dispatchDoneAnimating() { 4482 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4483 } 4484 4485 public void dispatchCheckFocus() { 4486 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4487 // This will result in a call to checkFocus() below. 4488 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4489 } 4490 } 4491 4492 /** 4493 * Post a callback to send a 4494 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4495 * This event is send at most once every 4496 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4497 */ 4498 private void postSendWindowContentChangedCallback(View source) { 4499 if (mSendWindowContentChangedAccessibilityEvent == null) { 4500 mSendWindowContentChangedAccessibilityEvent = 4501 new SendWindowContentChangedAccessibilityEvent(); 4502 } 4503 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4504 if (oldSource == null) { 4505 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4506 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4507 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4508 } else { 4509 mSendWindowContentChangedAccessibilityEvent.mSource = 4510 getCommonPredecessor(oldSource, source); 4511 } 4512 } 4513 4514 /** 4515 * Remove a posted callback to send a 4516 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4517 */ 4518 private void removeSendWindowContentChangedCallback() { 4519 if (mSendWindowContentChangedAccessibilityEvent != null) { 4520 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4521 } 4522 } 4523 4524 public boolean showContextMenuForChild(View originalView) { 4525 return false; 4526 } 4527 4528 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4529 return null; 4530 } 4531 4532 public void createContextMenu(ContextMenu menu) { 4533 } 4534 4535 public void childDrawableStateChanged(View child) { 4536 } 4537 4538 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4539 if (mView == null) { 4540 return false; 4541 } 4542 // Watch for accessibility focus change events from virtual nodes 4543 // to keep track of accessibility focus being on a virtual node. 4544 final int eventType = event.getEventType(); 4545 switch (eventType) { 4546 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4547 final long sourceId = event.getSourceNodeId(); 4548 // If the event is not from a virtual node we are not interested. 4549 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4550 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4551 break; 4552 } 4553 final int realViewId = AccessibilityNodeInfo.getAccessibilityViewId(sourceId); 4554 View focusHost = mView.findViewByAccessibilityId(realViewId); 4555 setAccessibilityFocusedHost(focusHost); 4556 } break; 4557 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4558 final long sourceId = event.getSourceNodeId(); 4559 // If the event is not from a virtual node we are not interested. 4560 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4561 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4562 break; 4563 } 4564 setAccessibilityFocusedHost(null); 4565 } break; 4566 } 4567 mAccessibilityManager.sendAccessibilityEvent(event); 4568 return true; 4569 } 4570 4571 @Override 4572 public void childAccessibilityStateChanged(View child) { 4573 postSendWindowContentChangedCallback(child); 4574 } 4575 4576 private View getCommonPredecessor(View first, View second) { 4577 if (mAttachInfo != null) { 4578 if (mTempHashSet == null) { 4579 mTempHashSet = new HashSet<View>(); 4580 } 4581 HashSet<View> seen = mTempHashSet; 4582 seen.clear(); 4583 View firstCurrent = first; 4584 while (firstCurrent != null) { 4585 seen.add(firstCurrent); 4586 ViewParent firstCurrentParent = firstCurrent.mParent; 4587 if (firstCurrentParent instanceof View) { 4588 firstCurrent = (View) firstCurrentParent; 4589 } else { 4590 firstCurrent = null; 4591 } 4592 } 4593 View secondCurrent = second; 4594 while (secondCurrent != null) { 4595 if (seen.contains(secondCurrent)) { 4596 seen.clear(); 4597 return secondCurrent; 4598 } 4599 ViewParent secondCurrentParent = secondCurrent.mParent; 4600 if (secondCurrentParent instanceof View) { 4601 secondCurrent = (View) secondCurrentParent; 4602 } else { 4603 secondCurrent = null; 4604 } 4605 } 4606 seen.clear(); 4607 } 4608 return null; 4609 } 4610 4611 void checkThread() { 4612 if (mThread != Thread.currentThread()) { 4613 throw new CalledFromWrongThreadException( 4614 "Only the original thread that created a view hierarchy can touch its views."); 4615 } 4616 } 4617 4618 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4619 // ViewAncestor never intercepts touch event, so this can be a no-op 4620 } 4621 4622 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4623 boolean immediate) { 4624 return scrollToRectOrFocus(rectangle, immediate); 4625 } 4626 4627 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4628 // Do nothing. 4629 } 4630 4631 class TakenSurfaceHolder extends BaseSurfaceHolder { 4632 @Override 4633 public boolean onAllowLockCanvas() { 4634 return mDrawingAllowed; 4635 } 4636 4637 @Override 4638 public void onRelayoutContainer() { 4639 // Not currently interesting -- from changing between fixed and layout size. 4640 } 4641 4642 public void setFormat(int format) { 4643 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4644 } 4645 4646 public void setType(int type) { 4647 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4648 } 4649 4650 @Override 4651 public void onUpdateSurface() { 4652 // We take care of format and type changes on our own. 4653 throw new IllegalStateException("Shouldn't be here"); 4654 } 4655 4656 public boolean isCreating() { 4657 return mIsCreating; 4658 } 4659 4660 @Override 4661 public void setFixedSize(int width, int height) { 4662 throw new UnsupportedOperationException( 4663 "Currently only support sizing from layout"); 4664 } 4665 4666 public void setKeepScreenOn(boolean screenOn) { 4667 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4668 } 4669 } 4670 4671 static class InputMethodCallback extends IInputMethodCallback.Stub { 4672 private WeakReference<ViewRootImpl> mViewAncestor; 4673 4674 public InputMethodCallback(ViewRootImpl viewAncestor) { 4675 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4676 } 4677 4678 public void finishedEvent(int seq, boolean handled) { 4679 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4680 if (viewAncestor != null) { 4681 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4682 } 4683 } 4684 4685 public void sessionCreated(IInputMethodSession session) { 4686 // Stub -- not for use in the client. 4687 } 4688 } 4689 4690 static class W extends IWindow.Stub { 4691 private final WeakReference<ViewRootImpl> mViewAncestor; 4692 4693 W(ViewRootImpl viewAncestor) { 4694 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4695 } 4696 4697 public void resized(int w, int h, Rect contentInsets, 4698 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4699 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4700 if (viewAncestor != null) { 4701 viewAncestor.dispatchResized(w, h, contentInsets, 4702 visibleInsets, reportDraw, newConfig); 4703 } 4704 } 4705 4706 public void dispatchAppVisibility(boolean visible) { 4707 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4708 if (viewAncestor != null) { 4709 viewAncestor.dispatchAppVisibility(visible); 4710 } 4711 } 4712 4713 public void dispatchScreenState(boolean on) { 4714 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4715 if (viewAncestor != null) { 4716 viewAncestor.dispatchScreenStateChange(on); 4717 } 4718 } 4719 4720 public void dispatchGetNewSurface() { 4721 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4722 if (viewAncestor != null) { 4723 viewAncestor.dispatchGetNewSurface(); 4724 } 4725 } 4726 4727 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4728 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4729 if (viewAncestor != null) { 4730 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4731 } 4732 } 4733 4734 private static int checkCallingPermission(String permission) { 4735 try { 4736 return ActivityManagerNative.getDefault().checkPermission( 4737 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4738 } catch (RemoteException e) { 4739 return PackageManager.PERMISSION_DENIED; 4740 } 4741 } 4742 4743 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4744 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4745 if (viewAncestor != null) { 4746 final View view = viewAncestor.mView; 4747 if (view != null) { 4748 if (checkCallingPermission(Manifest.permission.DUMP) != 4749 PackageManager.PERMISSION_GRANTED) { 4750 throw new SecurityException("Insufficient permissions to invoke" 4751 + " executeCommand() from pid=" + Binder.getCallingPid() 4752 + ", uid=" + Binder.getCallingUid()); 4753 } 4754 4755 OutputStream clientStream = null; 4756 try { 4757 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4758 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4759 } catch (IOException e) { 4760 e.printStackTrace(); 4761 } finally { 4762 if (clientStream != null) { 4763 try { 4764 clientStream.close(); 4765 } catch (IOException e) { 4766 e.printStackTrace(); 4767 } 4768 } 4769 } 4770 } 4771 } 4772 } 4773 4774 public void closeSystemDialogs(String reason) { 4775 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4776 if (viewAncestor != null) { 4777 viewAncestor.dispatchCloseSystemDialogs(reason); 4778 } 4779 } 4780 4781 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4782 boolean sync) { 4783 if (sync) { 4784 try { 4785 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4786 } catch (RemoteException e) { 4787 } 4788 } 4789 } 4790 4791 public void dispatchWallpaperCommand(String action, int x, int y, 4792 int z, Bundle extras, boolean sync) { 4793 if (sync) { 4794 try { 4795 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4796 } catch (RemoteException e) { 4797 } 4798 } 4799 } 4800 4801 /* Drag/drop */ 4802 public void dispatchDragEvent(DragEvent event) { 4803 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4804 if (viewAncestor != null) { 4805 viewAncestor.dispatchDragEvent(event); 4806 } 4807 } 4808 4809 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4810 int localValue, int localChanges) { 4811 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4812 if (viewAncestor != null) { 4813 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4814 localValue, localChanges); 4815 } 4816 } 4817 4818 public void doneAnimating() { 4819 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4820 if (viewAncestor != null) { 4821 viewAncestor.dispatchDoneAnimating(); 4822 } 4823 } 4824 } 4825 4826 /** 4827 * Maintains state information for a single trackball axis, generating 4828 * discrete (DPAD) movements based on raw trackball motion. 4829 */ 4830 static final class TrackballAxis { 4831 /** 4832 * The maximum amount of acceleration we will apply. 4833 */ 4834 static final float MAX_ACCELERATION = 20; 4835 4836 /** 4837 * The maximum amount of time (in milliseconds) between events in order 4838 * for us to consider the user to be doing fast trackball movements, 4839 * and thus apply an acceleration. 4840 */ 4841 static final long FAST_MOVE_TIME = 150; 4842 4843 /** 4844 * Scaling factor to the time (in milliseconds) between events to how 4845 * much to multiple/divide the current acceleration. When movement 4846 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4847 * FAST_MOVE_TIME it divides it. 4848 */ 4849 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4850 4851 float position; 4852 float absPosition; 4853 float acceleration = 1; 4854 long lastMoveTime = 0; 4855 int step; 4856 int dir; 4857 int nonAccelMovement; 4858 4859 void reset(int _step) { 4860 position = 0; 4861 acceleration = 1; 4862 lastMoveTime = 0; 4863 step = _step; 4864 dir = 0; 4865 } 4866 4867 /** 4868 * Add trackball movement into the state. If the direction of movement 4869 * has been reversed, the state is reset before adding the 4870 * movement (so that you don't have to compensate for any previously 4871 * collected movement before see the result of the movement in the 4872 * new direction). 4873 * 4874 * @return Returns the absolute value of the amount of movement 4875 * collected so far. 4876 */ 4877 float collect(float off, long time, String axis) { 4878 long normTime; 4879 if (off > 0) { 4880 normTime = (long)(off * FAST_MOVE_TIME); 4881 if (dir < 0) { 4882 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4883 position = 0; 4884 step = 0; 4885 acceleration = 1; 4886 lastMoveTime = 0; 4887 } 4888 dir = 1; 4889 } else if (off < 0) { 4890 normTime = (long)((-off) * FAST_MOVE_TIME); 4891 if (dir > 0) { 4892 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4893 position = 0; 4894 step = 0; 4895 acceleration = 1; 4896 lastMoveTime = 0; 4897 } 4898 dir = -1; 4899 } else { 4900 normTime = 0; 4901 } 4902 4903 // The number of milliseconds between each movement that is 4904 // considered "normal" and will not result in any acceleration 4905 // or deceleration, scaled by the offset we have here. 4906 if (normTime > 0) { 4907 long delta = time - lastMoveTime; 4908 lastMoveTime = time; 4909 float acc = acceleration; 4910 if (delta < normTime) { 4911 // The user is scrolling rapidly, so increase acceleration. 4912 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4913 if (scale > 1) acc *= scale; 4914 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4915 + off + " normTime=" + normTime + " delta=" + delta 4916 + " scale=" + scale + " acc=" + acc); 4917 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4918 } else { 4919 // The user is scrolling slowly, so decrease acceleration. 4920 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4921 if (scale > 1) acc /= scale; 4922 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4923 + off + " normTime=" + normTime + " delta=" + delta 4924 + " scale=" + scale + " acc=" + acc); 4925 acceleration = acc > 1 ? acc : 1; 4926 } 4927 } 4928 position += off; 4929 return (absPosition = Math.abs(position)); 4930 } 4931 4932 /** 4933 * Generate the number of discrete movement events appropriate for 4934 * the currently collected trackball movement. 4935 * 4936 * @param precision The minimum movement required to generate the 4937 * first discrete movement. 4938 * 4939 * @return Returns the number of discrete movements, either positive 4940 * or negative, or 0 if there is not enough trackball movement yet 4941 * for a discrete movement. 4942 */ 4943 int generate(float precision) { 4944 int movement = 0; 4945 nonAccelMovement = 0; 4946 do { 4947 final int dir = position >= 0 ? 1 : -1; 4948 switch (step) { 4949 // If we are going to execute the first step, then we want 4950 // to do this as soon as possible instead of waiting for 4951 // a full movement, in order to make things look responsive. 4952 case 0: 4953 if (absPosition < precision) { 4954 return movement; 4955 } 4956 movement += dir; 4957 nonAccelMovement += dir; 4958 step = 1; 4959 break; 4960 // If we have generated the first movement, then we need 4961 // to wait for the second complete trackball motion before 4962 // generating the second discrete movement. 4963 case 1: 4964 if (absPosition < 2) { 4965 return movement; 4966 } 4967 movement += dir; 4968 nonAccelMovement += dir; 4969 position += dir > 0 ? -2 : 2; 4970 absPosition = Math.abs(position); 4971 step = 2; 4972 break; 4973 // After the first two, we generate discrete movements 4974 // consistently with the trackball, applying an acceleration 4975 // if the trackball is moving quickly. This is a simple 4976 // acceleration on top of what we already compute based 4977 // on how quickly the wheel is being turned, to apply 4978 // a longer increasing acceleration to continuous movement 4979 // in one direction. 4980 default: 4981 if (absPosition < 1) { 4982 return movement; 4983 } 4984 movement += dir; 4985 position += dir >= 0 ? -1 : 1; 4986 absPosition = Math.abs(position); 4987 float acc = acceleration; 4988 acc *= 1.1f; 4989 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4990 break; 4991 } 4992 } while (true); 4993 } 4994 } 4995 4996 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4997 public CalledFromWrongThreadException(String msg) { 4998 super(msg); 4999 } 5000 } 5001 5002 private SurfaceHolder mHolder = new SurfaceHolder() { 5003 // we only need a SurfaceHolder for opengl. it would be nice 5004 // to implement everything else though, especially the callback 5005 // support (opengl doesn't make use of it right now, but eventually 5006 // will). 5007 public Surface getSurface() { 5008 return mSurface; 5009 } 5010 5011 public boolean isCreating() { 5012 return false; 5013 } 5014 5015 public void addCallback(Callback callback) { 5016 } 5017 5018 public void removeCallback(Callback callback) { 5019 } 5020 5021 public void setFixedSize(int width, int height) { 5022 } 5023 5024 public void setSizeFromLayout() { 5025 } 5026 5027 public void setFormat(int format) { 5028 } 5029 5030 public void setType(int type) { 5031 } 5032 5033 public void setKeepScreenOn(boolean screenOn) { 5034 } 5035 5036 public Canvas lockCanvas() { 5037 return null; 5038 } 5039 5040 public Canvas lockCanvas(Rect dirty) { 5041 return null; 5042 } 5043 5044 public void unlockCanvasAndPost(Canvas canvas) { 5045 } 5046 public Rect getSurfaceFrame() { 5047 return null; 5048 } 5049 }; 5050 5051 static RunQueue getRunQueue() { 5052 RunQueue rq = sRunQueues.get(); 5053 if (rq != null) { 5054 return rq; 5055 } 5056 rq = new RunQueue(); 5057 sRunQueues.set(rq); 5058 return rq; 5059 } 5060 5061 /** 5062 * The run queue is used to enqueue pending work from Views when no Handler is 5063 * attached. The work is executed during the next call to performTraversals on 5064 * the thread. 5065 * @hide 5066 */ 5067 static final class RunQueue { 5068 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5069 5070 void post(Runnable action) { 5071 postDelayed(action, 0); 5072 } 5073 5074 void postDelayed(Runnable action, long delayMillis) { 5075 HandlerAction handlerAction = new HandlerAction(); 5076 handlerAction.action = action; 5077 handlerAction.delay = delayMillis; 5078 5079 synchronized (mActions) { 5080 mActions.add(handlerAction); 5081 } 5082 } 5083 5084 void removeCallbacks(Runnable action) { 5085 final HandlerAction handlerAction = new HandlerAction(); 5086 handlerAction.action = action; 5087 5088 synchronized (mActions) { 5089 final ArrayList<HandlerAction> actions = mActions; 5090 5091 while (actions.remove(handlerAction)) { 5092 // Keep going 5093 } 5094 } 5095 } 5096 5097 void executeActions(Handler handler) { 5098 synchronized (mActions) { 5099 final ArrayList<HandlerAction> actions = mActions; 5100 final int count = actions.size(); 5101 5102 for (int i = 0; i < count; i++) { 5103 final HandlerAction handlerAction = actions.get(i); 5104 handler.postDelayed(handlerAction.action, handlerAction.delay); 5105 } 5106 5107 actions.clear(); 5108 } 5109 } 5110 5111 private static class HandlerAction { 5112 Runnable action; 5113 long delay; 5114 5115 @Override 5116 public boolean equals(Object o) { 5117 if (this == o) return true; 5118 if (o == null || getClass() != o.getClass()) return false; 5119 5120 HandlerAction that = (HandlerAction) o; 5121 return !(action != null ? !action.equals(that.action) : that.action != null); 5122 5123 } 5124 5125 @Override 5126 public int hashCode() { 5127 int result = action != null ? action.hashCode() : 0; 5128 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5129 return result; 5130 } 5131 } 5132 } 5133 5134 /** 5135 * Class for managing the accessibility interaction connection 5136 * based on the global accessibility state. 5137 */ 5138 final class AccessibilityInteractionConnectionManager 5139 implements AccessibilityStateChangeListener { 5140 public void onAccessibilityStateChanged(boolean enabled) { 5141 if (enabled) { 5142 ensureConnection(); 5143 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5144 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5145 View focusedView = mView.findFocus(); 5146 if (focusedView != null && focusedView != mView) { 5147 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5148 } 5149 } 5150 } else { 5151 ensureNoConnection(); 5152 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5153 } 5154 } 5155 5156 public void ensureConnection() { 5157 if (mAttachInfo != null) { 5158 final boolean registered = 5159 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5160 if (!registered) { 5161 mAttachInfo.mAccessibilityWindowId = 5162 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5163 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5164 } 5165 } 5166 } 5167 5168 public void ensureNoConnection() { 5169 final boolean registered = 5170 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5171 if (registered) { 5172 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5173 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5174 } 5175 } 5176 } 5177 5178 /** 5179 * This class is an interface this ViewAncestor provides to the 5180 * AccessibilityManagerService to the latter can interact with 5181 * the view hierarchy in this ViewAncestor. 5182 */ 5183 static final class AccessibilityInteractionConnection 5184 extends IAccessibilityInteractionConnection.Stub { 5185 private final WeakReference<ViewRootImpl> mViewRootImpl; 5186 5187 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5188 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5189 } 5190 5191 @Override 5192 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5193 int windowLeft, int windowTop, int interactionId, 5194 IAccessibilityInteractionConnectionCallback callback, int flags, 5195 int interrogatingPid, long interrogatingTid) { 5196 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5197 if (viewRootImpl != null && viewRootImpl.mView != null) { 5198 viewRootImpl.getAccessibilityInteractionController() 5199 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5200 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5201 interrogatingTid); 5202 } else { 5203 // We cannot make the call and notify the caller so it does not wait. 5204 try { 5205 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5206 } catch (RemoteException re) { 5207 /* best effort - ignore */ 5208 } 5209 } 5210 } 5211 5212 @Override 5213 public void performAccessibilityAction(long accessibilityNodeId, int action, 5214 Bundle arguments, int interactionId, 5215 IAccessibilityInteractionConnectionCallback callback, int flags, 5216 int interogatingPid, long interrogatingTid) { 5217 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5218 if (viewRootImpl != null && viewRootImpl.mView != null) { 5219 viewRootImpl.getAccessibilityInteractionController() 5220 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5221 interactionId, callback, flags, interogatingPid, interrogatingTid); 5222 } else { 5223 // We cannot make the call and notify the caller so it does not wait. 5224 try { 5225 callback.setPerformAccessibilityActionResult(false, interactionId); 5226 } catch (RemoteException re) { 5227 /* best effort - ignore */ 5228 } 5229 } 5230 } 5231 5232 @Override 5233 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5234 int windowLeft, int windowTop, int interactionId, 5235 IAccessibilityInteractionConnectionCallback callback, int flags, 5236 int interrogatingPid, long interrogatingTid) { 5237 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5238 if (viewRootImpl != null && viewRootImpl.mView != null) { 5239 viewRootImpl.getAccessibilityInteractionController() 5240 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5241 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5242 interrogatingTid); 5243 } else { 5244 // We cannot make the call and notify the caller so it does not wait. 5245 try { 5246 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5247 } catch (RemoteException re) { 5248 /* best effort - ignore */ 5249 } 5250 } 5251 } 5252 5253 @Override 5254 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5255 int windowLeft, int windowTop, int interactionId, 5256 IAccessibilityInteractionConnectionCallback callback, int flags, 5257 int interrogatingPid, long interrogatingTid) { 5258 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5259 if (viewRootImpl != null && viewRootImpl.mView != null) { 5260 viewRootImpl.getAccessibilityInteractionController() 5261 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5262 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5263 interrogatingTid); 5264 } else { 5265 // We cannot make the call and notify the caller so it does not wait. 5266 try { 5267 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5268 } catch (RemoteException re) { 5269 /* best effort - ignore */ 5270 } 5271 } 5272 } 5273 5274 @Override 5275 public void findFocus(long accessibilityNodeId, int focusType, int windowLeft, 5276 int windowTop, int interactionId, 5277 IAccessibilityInteractionConnectionCallback callback, int flags, 5278 int interrogatingPid, long interrogatingTid) { 5279 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5280 if (viewRootImpl != null && viewRootImpl.mView != null) { 5281 viewRootImpl.getAccessibilityInteractionController() 5282 .findFocusClientThread(accessibilityNodeId, focusType, windowLeft, windowTop, 5283 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5284 } else { 5285 // We cannot make the call and notify the caller so it does not wait. 5286 try { 5287 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5288 } catch (RemoteException re) { 5289 /* best effort - ignore */ 5290 } 5291 } 5292 } 5293 5294 @Override 5295 public void focusSearch(long accessibilityNodeId, int direction, int windowLeft, 5296 int windowTop, int interactionId, 5297 IAccessibilityInteractionConnectionCallback callback, int flags, 5298 int interrogatingPid, long interrogatingTid) { 5299 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5300 if (viewRootImpl != null && viewRootImpl.mView != null) { 5301 viewRootImpl.getAccessibilityInteractionController() 5302 .focusSearchClientThread(accessibilityNodeId, direction, windowLeft, windowTop, 5303 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5304 } else { 5305 // We cannot make the call and notify the caller so it does not wait. 5306 try { 5307 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5308 } catch (RemoteException re) { 5309 /* best effort - ignore */ 5310 } 5311 } 5312 } 5313 } 5314 5315 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5316 public View mSource; 5317 5318 public void run() { 5319 if (mSource != null) { 5320 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5321 mSource.resetAccessibilityStateChanged(); 5322 mSource = null; 5323 } 5324 } 5325 } 5326} 5327