ViewRootImpl.java revision 04ddf3c0508f3d50e6ab82cecc0adc92f52b7803
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.IInputMethodSession; 80import com.android.internal.view.RootViewSurfaceTaker; 81 82import java.io.IOException; 83import java.io.OutputStream; 84import java.lang.ref.WeakReference; 85import java.util.ArrayList; 86import java.util.HashSet; 87 88/** 89 * The top of a view hierarchy, implementing the needed protocol between View 90 * and the WindowManager. This is for the most part an internal implementation 91 * detail of {@link WindowManagerImpl}. 92 * 93 * {@hide} 94 */ 95@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 96public final class ViewRootImpl implements ViewParent, 97 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 98 private static final String TAG = "ViewRootImpl"; 99 private static final boolean DBG = false; 100 private static final boolean LOCAL_LOGV = false; 101 /** @noinspection PointlessBooleanExpression*/ 102 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 103 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 104 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 105 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 106 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 107 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 108 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 109 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_FPS = false; 111 112 private static final boolean USE_RENDER_THREAD = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 private static boolean sUseRenderThread = false; 143 private static boolean sRenderThreadQueried = false; 144 private static final Object[] sRenderThreadQueryLock = new Object[0]; 145 146 long mLastTrackballTime = 0; 147 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 148 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 149 150 int mLastJoystickXDirection; 151 int mLastJoystickYDirection; 152 int mLastJoystickXKeyCode; 153 int mLastJoystickYKeyCode; 154 155 final int[] mTmpLocation = new int[2]; 156 157 final TypedValue mTmpValue = new TypedValue(); 158 159 final InputMethodCallback mInputMethodCallback; 160 final Thread mThread; 161 162 final WindowLeaked mLocation; 163 164 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 165 166 final W mWindow; 167 168 final int mTargetSdkVersion; 169 170 int mSeq; 171 172 View mView; 173 View mFocusedView; 174 View mRealFocusedView; // this is not set to null in touch mode 175 View mOldFocusedView; 176 177 View mAccessibilityFocusedHost; 178 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 179 180 int mViewVisibility; 181 boolean mAppVisible = true; 182 int mOrigWindowType = -1; 183 184 // Set to true if the owner of this window is in the stopped state, 185 // so the window should no longer be active. 186 boolean mStopped = false; 187 188 boolean mLastInCompatMode = false; 189 190 SurfaceHolder.Callback2 mSurfaceHolderCallback; 191 BaseSurfaceHolder mSurfaceHolder; 192 boolean mIsCreating; 193 boolean mDrawingAllowed; 194 195 final Region mTransparentRegion; 196 final Region mPreviousTransparentRegion; 197 198 int mWidth; 199 int mHeight; 200 Rect mDirty; 201 final Rect mCurrentDirty = new Rect(); 202 final Rect mPreviousDirty = new Rect(); 203 boolean mIsAnimating; 204 205 CompatibilityInfo.Translator mTranslator; 206 207 final View.AttachInfo mAttachInfo; 208 InputChannel mInputChannel; 209 InputQueue.Callback mInputQueueCallback; 210 InputQueue mInputQueue; 211 FallbackEventHandler mFallbackEventHandler; 212 Choreographer mChoreographer; 213 214 final Rect mTempRect; // used in the transaction to not thrash the heap. 215 final Rect mVisRect; // used to retrieve visible rect of focused view. 216 217 boolean mTraversalScheduled; 218 int mTraversalBarrier; 219 boolean mWillDrawSoon; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 233 // Pool of queued input events. 234 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 235 private QueuedInputEvent mQueuedInputEventPool; 236 private int mQueuedInputEventPoolSize; 237 238 // Input event queue. 239 QueuedInputEvent mFirstPendingInputEvent; 240 QueuedInputEvent mCurrentInputEvent; 241 boolean mProcessInputEventsScheduled; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 private final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 CompatibilityInfoHolder mCompatibilityInfo; 254 255 /*package*/ int mAddNesting; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 class ResizedInfo { 271 Rect contentInsets; 272 Rect visibleInsets; 273 Configuration newConfig; 274 } 275 276 boolean mScrollMayChange; 277 int mSoftInputMode; 278 View mLastScrolledFocus; 279 int mScrollY; 280 int mCurScrollY; 281 Scroller mScroller; 282 HardwareLayer mResizeBuffer; 283 long mResizeBufferStartTime; 284 int mResizeBufferDuration; 285 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 286 private ArrayList<LayoutTransition> mPendingTransitions; 287 288 final ViewConfiguration mViewConfiguration; 289 290 /* Drag/drop */ 291 ClipDescription mDragDescription; 292 View mCurrentDragView; 293 volatile Object mLocalDragState; 294 final PointF mDragPoint = new PointF(); 295 final PointF mLastTouchPoint = new PointF(); 296 297 private boolean mProfileRendering; 298 private Thread mRenderProfiler; 299 private volatile boolean mRenderProfilingEnabled; 300 301 // Variables to track frames per second, enabled via DEBUG_FPS flag 302 private long mFpsStartTime = -1; 303 private long mFpsPrevTime = -1; 304 private int mFpsNumFrames; 305 306 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 307 308 /** 309 * see {@link #playSoundEffect(int)} 310 */ 311 AudioManager mAudioManager; 312 313 final AccessibilityManager mAccessibilityManager; 314 315 AccessibilityInteractionController mAccessibilityInteractionController; 316 317 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 318 319 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 320 321 HashSet<View> mTempHashSet; 322 323 private final int mDensity; 324 325 /** 326 * Consistency verifier for debugging purposes. 327 */ 328 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 329 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 330 new InputEventConsistencyVerifier(this, 0) : null; 331 332 public static IWindowSession getWindowSession(Looper mainLooper) { 333 synchronized (mStaticInit) { 334 if (!mInitialized) { 335 try { 336 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 337 IWindowManager windowManager = Display.getWindowManager(); 338 sWindowSession = windowManager.openSession( 339 imm.getClient(), imm.getInputContext()); 340 float animatorScale = windowManager.getAnimationScale(2); 341 ValueAnimator.setDurationScale(animatorScale); 342 mInitialized = true; 343 } catch (RemoteException e) { 344 } 345 } 346 return sWindowSession; 347 } 348 } 349 350 static final class SystemUiVisibilityInfo { 351 int seq; 352 int globalVisibility; 353 int localValue; 354 int localChanges; 355 } 356 357 public ViewRootImpl(Context context) { 358 super(); 359 360 if (MEASURE_LATENCY) { 361 if (lt == null) { 362 lt = new LatencyTimer(100, 1000); 363 } 364 } 365 366 // Initialize the statics when this class is first instantiated. This is 367 // done here instead of in the static block because Zygote does not 368 // allow the spawning of threads. 369 getWindowSession(context.getMainLooper()); 370 371 mThread = Thread.currentThread(); 372 mLocation = new WindowLeaked(null); 373 mLocation.fillInStackTrace(); 374 mWidth = -1; 375 mHeight = -1; 376 mDirty = new Rect(); 377 mTempRect = new Rect(); 378 mVisRect = new Rect(); 379 mWinFrame = new Rect(); 380 mWindow = new W(this); 381 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 382 mInputMethodCallback = new InputMethodCallback(this); 383 mViewVisibility = View.GONE; 384 mTransparentRegion = new Region(); 385 mPreviousTransparentRegion = new Region(); 386 mFirst = true; // true for the first time the view is added 387 mAdded = false; 388 mAccessibilityManager = AccessibilityManager.getInstance(context); 389 mAccessibilityInteractionConnectionManager = 390 new AccessibilityInteractionConnectionManager(); 391 mAccessibilityManager.addAccessibilityStateChangeListener( 392 mAccessibilityInteractionConnectionManager); 393 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 394 mViewConfiguration = ViewConfiguration.get(context); 395 mDensity = context.getResources().getDisplayMetrics().densityDpi; 396 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 397 mProfileRendering = Boolean.parseBoolean( 398 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 399 mChoreographer = Choreographer.getInstance(); 400 401 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 402 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 403 loadSystemProperties(); 404 } 405 406 /** 407 * @return True if the application requests the use of a separate render thread, 408 * false otherwise 409 */ 410 private static boolean isRenderThreadRequested(Context context) { 411 if (USE_RENDER_THREAD) { 412 synchronized (sRenderThreadQueryLock) { 413 if (!sRenderThreadQueried) { 414 final PackageManager packageManager = context.getPackageManager(); 415 final String packageName = context.getApplicationInfo().packageName; 416 try { 417 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 418 PackageManager.GET_META_DATA); 419 if (applicationInfo.metaData != null) { 420 sUseRenderThread = applicationInfo.metaData.getBoolean( 421 "android.graphics.renderThread", false); 422 } 423 } catch (PackageManager.NameNotFoundException e) { 424 } finally { 425 sRenderThreadQueried = true; 426 } 427 } 428 return sUseRenderThread; 429 } 430 } else { 431 return false; 432 } 433 } 434 435 public static void addFirstDrawHandler(Runnable callback) { 436 synchronized (sFirstDrawHandlers) { 437 if (!sFirstDrawComplete) { 438 sFirstDrawHandlers.add(callback); 439 } 440 } 441 } 442 443 public static void addConfigCallback(ComponentCallbacks callback) { 444 synchronized (sConfigCallbacks) { 445 sConfigCallbacks.add(callback); 446 } 447 } 448 449 // FIXME for perf testing only 450 private boolean mProfile = false; 451 452 /** 453 * Call this to profile the next traversal call. 454 * FIXME for perf testing only. Remove eventually 455 */ 456 public void profile() { 457 mProfile = true; 458 } 459 460 /** 461 * Indicates whether we are in touch mode. Calling this method triggers an IPC 462 * call and should be avoided whenever possible. 463 * 464 * @return True, if the device is in touch mode, false otherwise. 465 * 466 * @hide 467 */ 468 static boolean isInTouchMode() { 469 if (mInitialized) { 470 try { 471 return sWindowSession.getInTouchMode(); 472 } catch (RemoteException e) { 473 } 474 } 475 return false; 476 } 477 478 /** 479 * We have one child 480 */ 481 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 482 synchronized (this) { 483 if (mView == null) { 484 mView = view; 485 mFallbackEventHandler.setView(view); 486 mWindowAttributes.copyFrom(attrs); 487 attrs = mWindowAttributes; 488 // Keep track of the actual window flags supplied by the client. 489 mClientWindowLayoutFlags = attrs.flags; 490 491 setAccessibilityFocusedHost(null); 492 493 if (view instanceof RootViewSurfaceTaker) { 494 mSurfaceHolderCallback = 495 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 496 if (mSurfaceHolderCallback != null) { 497 mSurfaceHolder = new TakenSurfaceHolder(); 498 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 499 } 500 } 501 502 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 503 mTranslator = compatibilityInfo.getTranslator(); 504 505 // If the application owns the surface, don't enable hardware acceleration 506 if (mSurfaceHolder == null) { 507 enableHardwareAcceleration(mView.getContext(), attrs); 508 } 509 510 boolean restore = false; 511 if (mTranslator != null) { 512 mSurface.setCompatibilityTranslator(mTranslator); 513 restore = true; 514 attrs.backup(); 515 mTranslator.translateWindowLayout(attrs); 516 } 517 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 518 519 if (!compatibilityInfo.supportsScreen()) { 520 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 521 mLastInCompatMode = true; 522 } 523 524 mSoftInputMode = attrs.softInputMode; 525 mWindowAttributesChanged = true; 526 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 527 mAttachInfo.mRootView = view; 528 mAttachInfo.mScalingRequired = mTranslator != null; 529 mAttachInfo.mApplicationScale = 530 mTranslator == null ? 1.0f : mTranslator.applicationScale; 531 if (panelParentView != null) { 532 mAttachInfo.mPanelParentWindowToken 533 = panelParentView.getApplicationWindowToken(); 534 } 535 mAdded = true; 536 int res; /* = WindowManagerImpl.ADD_OKAY; */ 537 538 // Schedule the first layout -before- adding to the window 539 // manager, to make sure we do the relayout before receiving 540 // any other events from the system. 541 requestLayout(); 542 if ((mWindowAttributes.inputFeatures 543 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 544 mInputChannel = new InputChannel(); 545 } 546 try { 547 mOrigWindowType = mWindowAttributes.type; 548 mAttachInfo.mRecomputeGlobalAttributes = true; 549 collectViewAttributes(); 550 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 551 getHostVisibility(), mAttachInfo.mContentInsets, 552 mInputChannel); 553 } catch (RemoteException e) { 554 mAdded = false; 555 mView = null; 556 mAttachInfo.mRootView = null; 557 mInputChannel = null; 558 mFallbackEventHandler.setView(null); 559 unscheduleTraversals(); 560 setAccessibilityFocusedHost(null); 561 throw new RuntimeException("Adding window failed", e); 562 } finally { 563 if (restore) { 564 attrs.restore(); 565 } 566 } 567 568 if (mTranslator != null) { 569 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 570 } 571 mPendingContentInsets.set(mAttachInfo.mContentInsets); 572 mPendingVisibleInsets.set(0, 0, 0, 0); 573 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 574 if (res < WindowManagerImpl.ADD_OKAY) { 575 mView = null; 576 mAttachInfo.mRootView = null; 577 mAdded = false; 578 mFallbackEventHandler.setView(null); 579 unscheduleTraversals(); 580 setAccessibilityFocusedHost(null); 581 switch (res) { 582 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 583 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 584 throw new WindowManagerImpl.BadTokenException( 585 "Unable to add window -- token " + attrs.token 586 + " is not valid; is your activity running?"); 587 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 588 throw new WindowManagerImpl.BadTokenException( 589 "Unable to add window -- token " + attrs.token 590 + " is not for an application"); 591 case WindowManagerImpl.ADD_APP_EXITING: 592 throw new WindowManagerImpl.BadTokenException( 593 "Unable to add window -- app for token " + attrs.token 594 + " is exiting"); 595 case WindowManagerImpl.ADD_DUPLICATE_ADD: 596 throw new WindowManagerImpl.BadTokenException( 597 "Unable to add window -- window " + mWindow 598 + " has already been added"); 599 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 600 // Silently ignore -- we would have just removed it 601 // right away, anyway. 602 return; 603 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 604 throw new WindowManagerImpl.BadTokenException( 605 "Unable to add window " + mWindow + 606 " -- another window of this type already exists"); 607 case WindowManagerImpl.ADD_PERMISSION_DENIED: 608 throw new WindowManagerImpl.BadTokenException( 609 "Unable to add window " + mWindow + 610 " -- permission denied for this window type"); 611 } 612 throw new RuntimeException( 613 "Unable to add window -- unknown error code " + res); 614 } 615 616 if (view instanceof RootViewSurfaceTaker) { 617 mInputQueueCallback = 618 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 619 } 620 if (mInputChannel != null) { 621 if (mInputQueueCallback != null) { 622 mInputQueue = new InputQueue(mInputChannel); 623 mInputQueueCallback.onInputQueueCreated(mInputQueue); 624 } else { 625 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 626 Looper.myLooper()); 627 } 628 } 629 630 view.assignParent(this); 631 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 632 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 633 634 if (mAccessibilityManager.isEnabled()) { 635 mAccessibilityInteractionConnectionManager.ensureConnection(); 636 } 637 638 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 639 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 640 } 641 } 642 } 643 } 644 645 void destroyHardwareResources() { 646 if (mAttachInfo.mHardwareRenderer != null) { 647 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 648 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 649 } 650 mAttachInfo.mHardwareRenderer.destroy(false); 651 } 652 } 653 654 void terminateHardwareResources() { 655 if (mAttachInfo.mHardwareRenderer != null) { 656 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 657 mAttachInfo.mHardwareRenderer.destroy(false); 658 } 659 } 660 661 void destroyHardwareLayers() { 662 if (mThread != Thread.currentThread()) { 663 if (mAttachInfo.mHardwareRenderer != null && 664 mAttachInfo.mHardwareRenderer.isEnabled()) { 665 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 666 } 667 } else { 668 if (mAttachInfo.mHardwareRenderer != null && 669 mAttachInfo.mHardwareRenderer.isEnabled()) { 670 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 671 } 672 } 673 } 674 675 public boolean attachFunctor(int functor) { 676 //noinspection SimplifiableIfStatement 677 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 678 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 679 } 680 return false; 681 } 682 683 public void detachFunctor(int functor) { 684 if (mAttachInfo.mHardwareRenderer != null) { 685 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 686 } 687 } 688 689 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 690 mAttachInfo.mHardwareAccelerated = false; 691 mAttachInfo.mHardwareAccelerationRequested = false; 692 693 // Don't enable hardware acceleration when the application is in compatibility mode 694 if (mTranslator != null) return; 695 696 // Try to enable hardware acceleration if requested 697 final boolean hardwareAccelerated = 698 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 699 700 if (hardwareAccelerated) { 701 if (!HardwareRenderer.isAvailable()) { 702 return; 703 } 704 705 // Persistent processes (including the system) should not do 706 // accelerated rendering on low-end devices. In that case, 707 // sRendererDisabled will be set. In addition, the system process 708 // itself should never do accelerated rendering. In that case, both 709 // sRendererDisabled and sSystemRendererDisabled are set. When 710 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 711 // can be used by code on the system process to escape that and enable 712 // HW accelerated drawing. (This is basically for the lock screen.) 713 714 final boolean fakeHwAccelerated = (attrs.privateFlags & 715 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 716 final boolean forceHwAccelerated = (attrs.privateFlags & 717 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 718 719 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 720 && forceHwAccelerated)) { 721 // Don't enable hardware acceleration when we're not on the main thread 722 if (!HardwareRenderer.sSystemRendererDisabled && 723 Looper.getMainLooper() != Looper.myLooper()) { 724 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 725 + "acceleration outside of the main thread, aborting"); 726 return; 727 } 728 729 final boolean renderThread = isRenderThreadRequested(context); 730 if (renderThread) { 731 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 732 } 733 734 if (mAttachInfo.mHardwareRenderer != null) { 735 mAttachInfo.mHardwareRenderer.destroy(true); 736 } 737 738 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 739 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 740 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 741 = mAttachInfo.mHardwareRenderer != null; 742 743 } else if (fakeHwAccelerated) { 744 // The window had wanted to use hardware acceleration, but this 745 // is not allowed in its process. By setting this flag, it can 746 // still render as if it was accelerated. This is basically for 747 // the preview windows the window manager shows for launching 748 // applications, so they will look more like the app being launched. 749 mAttachInfo.mHardwareAccelerationRequested = true; 750 } 751 } 752 } 753 754 public View getView() { 755 return mView; 756 } 757 758 final WindowLeaked getLocation() { 759 return mLocation; 760 } 761 762 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 763 synchronized (this) { 764 int oldSoftInputMode = mWindowAttributes.softInputMode; 765 // Keep track of the actual window flags supplied by the client. 766 mClientWindowLayoutFlags = attrs.flags; 767 // preserve compatible window flag if exists. 768 int compatibleWindowFlag = 769 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 770 // transfer over system UI visibility values as they carry current state. 771 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 772 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 773 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 774 mWindowAttributes.flags |= compatibleWindowFlag; 775 776 applyKeepScreenOnFlag(mWindowAttributes); 777 778 if (newView) { 779 mSoftInputMode = attrs.softInputMode; 780 requestLayout(); 781 } 782 // Don't lose the mode we last auto-computed. 783 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 784 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 785 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 786 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 787 | (oldSoftInputMode 788 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 789 } 790 mWindowAttributesChanged = true; 791 scheduleTraversals(); 792 } 793 } 794 795 void handleAppVisibility(boolean visible) { 796 if (mAppVisible != visible) { 797 mAppVisible = visible; 798 scheduleTraversals(); 799 } 800 } 801 802 void handleGetNewSurface() { 803 mNewSurfaceNeeded = true; 804 mFullRedrawNeeded = true; 805 scheduleTraversals(); 806 } 807 808 void handleScreenStateChange(boolean on) { 809 if (on != mAttachInfo.mScreenOn) { 810 mAttachInfo.mScreenOn = on; 811 if (mView != null) { 812 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 813 } 814 if (on) { 815 mFullRedrawNeeded = true; 816 scheduleTraversals(); 817 } 818 } 819 } 820 821 /** 822 * {@inheritDoc} 823 */ 824 public void requestFitSystemWindows() { 825 checkThread(); 826 mFitSystemWindowsRequested = true; 827 scheduleTraversals(); 828 } 829 830 /** 831 * {@inheritDoc} 832 */ 833 public void requestLayout() { 834 checkThread(); 835 mLayoutRequested = true; 836 scheduleTraversals(); 837 } 838 839 /** 840 * {@inheritDoc} 841 */ 842 public boolean isLayoutRequested() { 843 return mLayoutRequested; 844 } 845 846 void invalidate() { 847 mDirty.set(0, 0, mWidth, mHeight); 848 scheduleTraversals(); 849 } 850 851 void invalidateWorld(View view) { 852 view.invalidate(); 853 if (view instanceof ViewGroup) { 854 ViewGroup parent = (ViewGroup)view; 855 for (int i=0; i<parent.getChildCount(); i++) { 856 invalidateWorld(parent.getChildAt(i)); 857 } 858 } 859 } 860 861 public void invalidateChild(View child, Rect dirty) { 862 invalidateChildInParent(null, dirty); 863 } 864 865 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 866 checkThread(); 867 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 868 869 if (dirty == null) { 870 invalidate(); 871 return null; 872 } 873 874 if (mCurScrollY != 0 || mTranslator != null) { 875 mTempRect.set(dirty); 876 dirty = mTempRect; 877 if (mCurScrollY != 0) { 878 dirty.offset(0, -mCurScrollY); 879 } 880 if (mTranslator != null) { 881 mTranslator.translateRectInAppWindowToScreen(dirty); 882 } 883 if (mAttachInfo.mScalingRequired) { 884 dirty.inset(-1, -1); 885 } 886 } 887 888 final Rect localDirty = mDirty; 889 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 890 mAttachInfo.mSetIgnoreDirtyState = true; 891 mAttachInfo.mIgnoreDirtyState = true; 892 } 893 894 // Add the new dirty rect to the current one 895 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 896 // Intersect with the bounds of the window to skip 897 // updates that lie outside of the visible region 898 final float appScale = mAttachInfo.mApplicationScale; 899 localDirty.intersect(0, 0, 900 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 901 902 if (!mWillDrawSoon) { 903 scheduleTraversals(); 904 } 905 906 return null; 907 } 908 909 void setStopped(boolean stopped) { 910 if (mStopped != stopped) { 911 mStopped = stopped; 912 if (!stopped) { 913 scheduleTraversals(); 914 } 915 } 916 } 917 918 public ViewParent getParent() { 919 return null; 920 } 921 922 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 923 if (child != mView) { 924 throw new RuntimeException("child is not mine, honest!"); 925 } 926 // Note: don't apply scroll offset, because we want to know its 927 // visibility in the virtual canvas being given to the view hierarchy. 928 return r.intersect(0, 0, mWidth, mHeight); 929 } 930 931 public void bringChildToFront(View child) { 932 } 933 934 int getHostVisibility() { 935 return mAppVisible ? mView.getVisibility() : View.GONE; 936 } 937 938 void disposeResizeBuffer() { 939 if (mResizeBuffer != null) { 940 mResizeBuffer.destroy(); 941 mResizeBuffer = null; 942 } 943 } 944 945 /** 946 * Add LayoutTransition to the list of transitions to be started in the next traversal. 947 * This list will be cleared after the transitions on the list are start()'ed. These 948 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 949 * happens during the layout phase of traversal, which we want to complete before any of the 950 * animations are started (because those animations may side-effect properties that layout 951 * depends upon, like the bounding rectangles of the affected views). So we add the transition 952 * to the list and it is started just prior to starting the drawing phase of traversal. 953 * 954 * @param transition The LayoutTransition to be started on the next traversal. 955 * 956 * @hide 957 */ 958 public void requestTransitionStart(LayoutTransition transition) { 959 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 960 if (mPendingTransitions == null) { 961 mPendingTransitions = new ArrayList<LayoutTransition>(); 962 } 963 mPendingTransitions.add(transition); 964 } 965 } 966 967 void scheduleTraversals() { 968 if (!mTraversalScheduled) { 969 mTraversalScheduled = true; 970 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 971 mChoreographer.postCallback( 972 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 973 scheduleConsumeBatchedInput(); 974 } 975 } 976 977 void unscheduleTraversals() { 978 if (mTraversalScheduled) { 979 mTraversalScheduled = false; 980 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 981 mChoreographer.removeCallbacks( 982 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 983 } 984 } 985 986 void doTraversal() { 987 if (mTraversalScheduled) { 988 mTraversalScheduled = false; 989 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 990 991 if (mProfile) { 992 Debug.startMethodTracing("ViewAncestor"); 993 } 994 995 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 996 try { 997 performTraversals(); 998 } finally { 999 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1000 } 1001 1002 if (mProfile) { 1003 Debug.stopMethodTracing(); 1004 mProfile = false; 1005 } 1006 } 1007 } 1008 1009 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1010 // Update window's global keep screen on flag: if a view has requested 1011 // that the screen be kept on, then it is always set; otherwise, it is 1012 // set to whatever the client last requested for the global state. 1013 if (mAttachInfo.mKeepScreenOn) { 1014 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1015 } else { 1016 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1017 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1018 } 1019 } 1020 1021 private boolean collectViewAttributes() { 1022 final View.AttachInfo attachInfo = mAttachInfo; 1023 if (attachInfo.mRecomputeGlobalAttributes) { 1024 //Log.i(TAG, "Computing view hierarchy attributes!"); 1025 attachInfo.mRecomputeGlobalAttributes = false; 1026 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1027 int oldVis = attachInfo.mSystemUiVisibility; 1028 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1029 attachInfo.mKeepScreenOn = false; 1030 attachInfo.mSystemUiVisibility = 0; 1031 attachInfo.mHasSystemUiListeners = false; 1032 mView.dispatchCollectViewAttributes(attachInfo, 0); 1033 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1034 if (attachInfo.mKeepScreenOn != oldScreenOn 1035 || attachInfo.mSystemUiVisibility != oldVis 1036 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1037 WindowManager.LayoutParams params = mWindowAttributes; 1038 applyKeepScreenOnFlag(params); 1039 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1040 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1041 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1042 return true; 1043 } 1044 } 1045 return false; 1046 } 1047 1048 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1049 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1050 int childWidthMeasureSpec; 1051 int childHeightMeasureSpec; 1052 boolean windowSizeMayChange = false; 1053 1054 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1055 "Measuring " + host + " in display " + desiredWindowWidth 1056 + "x" + desiredWindowHeight + "..."); 1057 1058 boolean goodMeasure = false; 1059 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1060 // On large screens, we don't want to allow dialogs to just 1061 // stretch to fill the entire width of the screen to display 1062 // one line of text. First try doing the layout at a smaller 1063 // size to see if it will fit. 1064 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1065 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1066 int baseSize = 0; 1067 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1068 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1069 } 1070 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1071 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1072 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1073 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1074 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1075 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1076 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1077 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1078 goodMeasure = true; 1079 } else { 1080 // Didn't fit in that size... try expanding a bit. 1081 baseSize = (baseSize+desiredWindowWidth)/2; 1082 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1083 + baseSize); 1084 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1085 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1086 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1087 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1088 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1089 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1090 goodMeasure = true; 1091 } 1092 } 1093 } 1094 } 1095 1096 if (!goodMeasure) { 1097 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1098 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1099 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1100 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1101 windowSizeMayChange = true; 1102 } 1103 } 1104 1105 if (DBG) { 1106 System.out.println("======================================"); 1107 System.out.println("performTraversals -- after measure"); 1108 host.debug(); 1109 } 1110 1111 return windowSizeMayChange; 1112 } 1113 1114 private void performTraversals() { 1115 // cache mView since it is used so much below... 1116 final View host = mView; 1117 1118 if (DBG) { 1119 System.out.println("======================================"); 1120 System.out.println("performTraversals"); 1121 host.debug(); 1122 } 1123 1124 if (host == null || !mAdded) 1125 return; 1126 1127 mWillDrawSoon = true; 1128 boolean windowSizeMayChange = false; 1129 boolean newSurface = false; 1130 boolean surfaceChanged = false; 1131 WindowManager.LayoutParams lp = mWindowAttributes; 1132 1133 int desiredWindowWidth; 1134 int desiredWindowHeight; 1135 1136 final View.AttachInfo attachInfo = mAttachInfo; 1137 1138 final int viewVisibility = getHostVisibility(); 1139 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1140 || mNewSurfaceNeeded; 1141 1142 WindowManager.LayoutParams params = null; 1143 if (mWindowAttributesChanged) { 1144 mWindowAttributesChanged = false; 1145 surfaceChanged = true; 1146 params = lp; 1147 } 1148 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1149 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1150 params = lp; 1151 mFullRedrawNeeded = true; 1152 mLayoutRequested = true; 1153 if (mLastInCompatMode) { 1154 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1155 mLastInCompatMode = false; 1156 } else { 1157 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1158 mLastInCompatMode = true; 1159 } 1160 } 1161 1162 mWindowAttributesChangesFlag = 0; 1163 1164 Rect frame = mWinFrame; 1165 if (mFirst) { 1166 mFullRedrawNeeded = true; 1167 mLayoutRequested = true; 1168 1169 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1170 // NOTE -- system code, won't try to do compat mode. 1171 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1172 Point size = new Point(); 1173 disp.getRealSize(size); 1174 desiredWindowWidth = size.x; 1175 desiredWindowHeight = size.y; 1176 } else { 1177 DisplayMetrics packageMetrics = 1178 mView.getContext().getResources().getDisplayMetrics(); 1179 desiredWindowWidth = packageMetrics.widthPixels; 1180 desiredWindowHeight = packageMetrics.heightPixels; 1181 } 1182 1183 // For the very first time, tell the view hierarchy that it 1184 // is attached to the window. Note that at this point the surface 1185 // object is not initialized to its backing store, but soon it 1186 // will be (assuming the window is visible). 1187 attachInfo.mSurface = mSurface; 1188 // We used to use the following condition to choose 32 bits drawing caches: 1189 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1190 // However, windows are now always 32 bits by default, so choose 32 bits 1191 attachInfo.mUse32BitDrawingCache = true; 1192 attachInfo.mHasWindowFocus = false; 1193 attachInfo.mWindowVisibility = viewVisibility; 1194 attachInfo.mRecomputeGlobalAttributes = false; 1195 viewVisibilityChanged = false; 1196 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1197 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1198 host.dispatchAttachedToWindow(attachInfo, 0); 1199 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1200 host.fitSystemWindows(mFitSystemWindowsInsets); 1201 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1202 1203 } else { 1204 desiredWindowWidth = frame.width(); 1205 desiredWindowHeight = frame.height(); 1206 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1207 if (DEBUG_ORIENTATION) Log.v(TAG, 1208 "View " + host + " resized to: " + frame); 1209 mFullRedrawNeeded = true; 1210 mLayoutRequested = true; 1211 windowSizeMayChange = true; 1212 } 1213 } 1214 1215 if (viewVisibilityChanged) { 1216 attachInfo.mWindowVisibility = viewVisibility; 1217 host.dispatchWindowVisibilityChanged(viewVisibility); 1218 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1219 destroyHardwareResources(); 1220 } 1221 if (viewVisibility == View.GONE) { 1222 // After making a window gone, we will count it as being 1223 // shown for the first time the next time it gets focus. 1224 mHasHadWindowFocus = false; 1225 } 1226 } 1227 1228 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1229 getRunQueue().executeActions(attachInfo.mHandler); 1230 1231 boolean insetsChanged = false; 1232 1233 boolean layoutRequested = mLayoutRequested && !mStopped; 1234 if (layoutRequested) { 1235 1236 final Resources res = mView.getContext().getResources(); 1237 1238 if (mFirst) { 1239 // make sure touch mode code executes by setting cached value 1240 // to opposite of the added touch mode. 1241 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1242 ensureTouchModeLocally(mAddedTouchMode); 1243 } else { 1244 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1245 insetsChanged = true; 1246 } 1247 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1248 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1249 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1250 + mAttachInfo.mVisibleInsets); 1251 } 1252 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1253 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1254 windowSizeMayChange = true; 1255 1256 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1257 // NOTE -- system code, won't try to do compat mode. 1258 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1259 Point size = new Point(); 1260 disp.getRealSize(size); 1261 desiredWindowWidth = size.x; 1262 desiredWindowHeight = size.y; 1263 } else { 1264 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1265 desiredWindowWidth = packageMetrics.widthPixels; 1266 desiredWindowHeight = packageMetrics.heightPixels; 1267 } 1268 } 1269 } 1270 1271 // Ask host how big it wants to be 1272 windowSizeMayChange |= measureHierarchy(host, lp, res, 1273 desiredWindowWidth, desiredWindowHeight); 1274 } 1275 1276 if (collectViewAttributes()) { 1277 params = lp; 1278 } 1279 if (attachInfo.mForceReportNewAttributes) { 1280 attachInfo.mForceReportNewAttributes = false; 1281 params = lp; 1282 } 1283 1284 if (mFirst || attachInfo.mViewVisibilityChanged) { 1285 attachInfo.mViewVisibilityChanged = false; 1286 int resizeMode = mSoftInputMode & 1287 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1288 // If we are in auto resize mode, then we need to determine 1289 // what mode to use now. 1290 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1291 final int N = attachInfo.mScrollContainers.size(); 1292 for (int i=0; i<N; i++) { 1293 if (attachInfo.mScrollContainers.get(i).isShown()) { 1294 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1295 } 1296 } 1297 if (resizeMode == 0) { 1298 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1299 } 1300 if ((lp.softInputMode & 1301 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1302 lp.softInputMode = (lp.softInputMode & 1303 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1304 resizeMode; 1305 params = lp; 1306 } 1307 } 1308 } 1309 1310 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1311 if (!PixelFormat.formatHasAlpha(params.format)) { 1312 params.format = PixelFormat.TRANSLUCENT; 1313 } 1314 } 1315 1316 if (mFitSystemWindowsRequested) { 1317 mFitSystemWindowsRequested = false; 1318 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1319 host.fitSystemWindows(mFitSystemWindowsInsets); 1320 if (mLayoutRequested) { 1321 // Short-circuit catching a new layout request here, so 1322 // we don't need to go through two layout passes when things 1323 // change due to fitting system windows, which can happen a lot. 1324 windowSizeMayChange |= measureHierarchy(host, lp, 1325 mView.getContext().getResources(), 1326 desiredWindowWidth, desiredWindowHeight); 1327 } 1328 } 1329 1330 if (layoutRequested) { 1331 // Clear this now, so that if anything requests a layout in the 1332 // rest of this function we will catch it and re-run a full 1333 // layout pass. 1334 mLayoutRequested = false; 1335 } 1336 1337 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1338 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1339 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1340 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1341 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1342 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1343 1344 final boolean computesInternalInsets = 1345 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1346 1347 boolean insetsPending = false; 1348 int relayoutResult = 0; 1349 1350 if (mFirst || windowShouldResize || insetsChanged || 1351 viewVisibilityChanged || params != null) { 1352 1353 if (viewVisibility == View.VISIBLE) { 1354 // If this window is giving internal insets to the window 1355 // manager, and it is being added or changing its visibility, 1356 // then we want to first give the window manager "fake" 1357 // insets to cause it to effectively ignore the content of 1358 // the window during layout. This avoids it briefly causing 1359 // other windows to resize/move based on the raw frame of the 1360 // window, waiting until we can finish laying out this window 1361 // and get back to the window manager with the ultimately 1362 // computed insets. 1363 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1364 } 1365 1366 if (mSurfaceHolder != null) { 1367 mSurfaceHolder.mSurfaceLock.lock(); 1368 mDrawingAllowed = true; 1369 } 1370 1371 boolean hwInitialized = false; 1372 boolean contentInsetsChanged = false; 1373 boolean visibleInsetsChanged; 1374 boolean hadSurface = mSurface.isValid(); 1375 1376 try { 1377 if (DEBUG_LAYOUT) { 1378 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1379 host.getMeasuredHeight() + ", params=" + params); 1380 } 1381 1382 final int surfaceGenerationId = mSurface.getGenerationId(); 1383 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1384 1385 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1386 + " content=" + mPendingContentInsets.toShortString() 1387 + " visible=" + mPendingVisibleInsets.toShortString() 1388 + " surface=" + mSurface); 1389 1390 if (mPendingConfiguration.seq != 0) { 1391 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1392 + mPendingConfiguration); 1393 updateConfiguration(mPendingConfiguration, !mFirst); 1394 mPendingConfiguration.seq = 0; 1395 } 1396 1397 contentInsetsChanged = !mPendingContentInsets.equals( 1398 mAttachInfo.mContentInsets); 1399 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1400 mAttachInfo.mVisibleInsets); 1401 if (contentInsetsChanged) { 1402 if (mWidth > 0 && mHeight > 0 && lp != null && 1403 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1404 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1405 mSurface != null && mSurface.isValid() && 1406 !mAttachInfo.mTurnOffWindowResizeAnim && 1407 mAttachInfo.mHardwareRenderer != null && 1408 mAttachInfo.mHardwareRenderer.isEnabled() && 1409 mAttachInfo.mHardwareRenderer.validate() && 1410 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1411 1412 disposeResizeBuffer(); 1413 1414 boolean completed = false; 1415 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1416 HardwareCanvas layerCanvas = null; 1417 try { 1418 if (mResizeBuffer == null) { 1419 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1420 mWidth, mHeight, false); 1421 } else if (mResizeBuffer.getWidth() != mWidth || 1422 mResizeBuffer.getHeight() != mHeight) { 1423 mResizeBuffer.resize(mWidth, mHeight); 1424 } 1425 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1426 layerCanvas.setViewport(mWidth, mHeight); 1427 layerCanvas.onPreDraw(null); 1428 final int restoreCount = layerCanvas.save(); 1429 1430 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1431 1432 int yoff; 1433 final boolean scrolling = mScroller != null 1434 && mScroller.computeScrollOffset(); 1435 if (scrolling) { 1436 yoff = mScroller.getCurrY(); 1437 mScroller.abortAnimation(); 1438 } else { 1439 yoff = mScrollY; 1440 } 1441 1442 layerCanvas.translate(0, -yoff); 1443 if (mTranslator != null) { 1444 mTranslator.translateCanvas(layerCanvas); 1445 } 1446 1447 mView.draw(layerCanvas); 1448 1449 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1450 1451 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1452 mResizeBufferDuration = mView.getResources().getInteger( 1453 com.android.internal.R.integer.config_mediumAnimTime); 1454 completed = true; 1455 1456 layerCanvas.restoreToCount(restoreCount); 1457 } catch (OutOfMemoryError e) { 1458 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1459 } finally { 1460 if (layerCanvas != null) { 1461 layerCanvas.onPostDraw(); 1462 } 1463 if (mResizeBuffer != null) { 1464 mResizeBuffer.end(hwRendererCanvas); 1465 if (!completed) { 1466 mResizeBuffer.destroy(); 1467 mResizeBuffer = null; 1468 } 1469 } 1470 } 1471 } 1472 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1473 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1474 + mAttachInfo.mContentInsets); 1475 } 1476 if (contentInsetsChanged || mLastSystemUiVisibility != 1477 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1478 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1479 mFitSystemWindowsRequested = false; 1480 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1481 host.fitSystemWindows(mFitSystemWindowsInsets); 1482 } 1483 if (visibleInsetsChanged) { 1484 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1485 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1486 + mAttachInfo.mVisibleInsets); 1487 } 1488 1489 if (!hadSurface) { 1490 if (mSurface.isValid()) { 1491 // If we are creating a new surface, then we need to 1492 // completely redraw it. Also, when we get to the 1493 // point of drawing it we will hold off and schedule 1494 // a new traversal instead. This is so we can tell the 1495 // window manager about all of the windows being displayed 1496 // before actually drawing them, so it can display then 1497 // all at once. 1498 newSurface = true; 1499 mFullRedrawNeeded = true; 1500 mPreviousTransparentRegion.setEmpty(); 1501 1502 if (mAttachInfo.mHardwareRenderer != null) { 1503 try { 1504 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1505 } catch (Surface.OutOfResourcesException e) { 1506 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1507 try { 1508 if (!sWindowSession.outOfMemory(mWindow)) { 1509 Slog.w(TAG, "No processes killed for memory; killing self"); 1510 Process.killProcess(Process.myPid()); 1511 } 1512 } catch (RemoteException ex) { 1513 } 1514 mLayoutRequested = true; // ask wm for a new surface next time. 1515 return; 1516 } 1517 } 1518 } 1519 } else if (!mSurface.isValid()) { 1520 // If the surface has been removed, then reset the scroll 1521 // positions. 1522 mLastScrolledFocus = null; 1523 mScrollY = mCurScrollY = 0; 1524 if (mScroller != null) { 1525 mScroller.abortAnimation(); 1526 } 1527 disposeResizeBuffer(); 1528 // Our surface is gone 1529 if (mAttachInfo.mHardwareRenderer != null && 1530 mAttachInfo.mHardwareRenderer.isEnabled()) { 1531 mAttachInfo.mHardwareRenderer.destroy(true); 1532 } 1533 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1534 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1535 mFullRedrawNeeded = true; 1536 try { 1537 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1538 } catch (Surface.OutOfResourcesException e) { 1539 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1540 try { 1541 if (!sWindowSession.outOfMemory(mWindow)) { 1542 Slog.w(TAG, "No processes killed for memory; killing self"); 1543 Process.killProcess(Process.myPid()); 1544 } 1545 } catch (RemoteException ex) { 1546 } 1547 mLayoutRequested = true; // ask wm for a new surface next time. 1548 return; 1549 } 1550 } 1551 } catch (RemoteException e) { 1552 } 1553 1554 if (DEBUG_ORIENTATION) Log.v( 1555 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1556 1557 attachInfo.mWindowLeft = frame.left; 1558 attachInfo.mWindowTop = frame.top; 1559 1560 // !!FIXME!! This next section handles the case where we did not get the 1561 // window size we asked for. We should avoid this by getting a maximum size from 1562 // the window session beforehand. 1563 if (mWidth != frame.width() || mHeight != frame.height()) { 1564 mWidth = frame.width(); 1565 mHeight = frame.height(); 1566 } 1567 1568 if (mSurfaceHolder != null) { 1569 // The app owns the surface; tell it about what is going on. 1570 if (mSurface.isValid()) { 1571 // XXX .copyFrom() doesn't work! 1572 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1573 mSurfaceHolder.mSurface = mSurface; 1574 } 1575 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1576 mSurfaceHolder.mSurfaceLock.unlock(); 1577 if (mSurface.isValid()) { 1578 if (!hadSurface) { 1579 mSurfaceHolder.ungetCallbacks(); 1580 1581 mIsCreating = true; 1582 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1583 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1584 if (callbacks != null) { 1585 for (SurfaceHolder.Callback c : callbacks) { 1586 c.surfaceCreated(mSurfaceHolder); 1587 } 1588 } 1589 surfaceChanged = true; 1590 } 1591 if (surfaceChanged) { 1592 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1593 lp.format, mWidth, mHeight); 1594 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1595 if (callbacks != null) { 1596 for (SurfaceHolder.Callback c : callbacks) { 1597 c.surfaceChanged(mSurfaceHolder, lp.format, 1598 mWidth, mHeight); 1599 } 1600 } 1601 } 1602 mIsCreating = false; 1603 } else if (hadSurface) { 1604 mSurfaceHolder.ungetCallbacks(); 1605 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1606 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1607 if (callbacks != null) { 1608 for (SurfaceHolder.Callback c : callbacks) { 1609 c.surfaceDestroyed(mSurfaceHolder); 1610 } 1611 } 1612 mSurfaceHolder.mSurfaceLock.lock(); 1613 try { 1614 mSurfaceHolder.mSurface = new Surface(); 1615 } finally { 1616 mSurfaceHolder.mSurfaceLock.unlock(); 1617 } 1618 } 1619 } 1620 1621 if (mAttachInfo.mHardwareRenderer != null && 1622 mAttachInfo.mHardwareRenderer.isEnabled()) { 1623 if (hwInitialized || windowShouldResize || 1624 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1625 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1626 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1627 if (!hwInitialized) { 1628 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1629 } 1630 } 1631 } 1632 1633 if (!mStopped) { 1634 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1635 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1636 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1637 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1638 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1639 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1640 1641 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1642 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1643 + " mHeight=" + mHeight 1644 + " measuredHeight=" + host.getMeasuredHeight() 1645 + " coveredInsetsChanged=" + contentInsetsChanged); 1646 1647 // Ask host how big it wants to be 1648 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1649 1650 // Implementation of weights from WindowManager.LayoutParams 1651 // We just grow the dimensions as needed and re-measure if 1652 // needs be 1653 int width = host.getMeasuredWidth(); 1654 int height = host.getMeasuredHeight(); 1655 boolean measureAgain = false; 1656 1657 if (lp.horizontalWeight > 0.0f) { 1658 width += (int) ((mWidth - width) * lp.horizontalWeight); 1659 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1660 MeasureSpec.EXACTLY); 1661 measureAgain = true; 1662 } 1663 if (lp.verticalWeight > 0.0f) { 1664 height += (int) ((mHeight - height) * lp.verticalWeight); 1665 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1666 MeasureSpec.EXACTLY); 1667 measureAgain = true; 1668 } 1669 1670 if (measureAgain) { 1671 if (DEBUG_LAYOUT) Log.v(TAG, 1672 "And hey let's measure once more: width=" + width 1673 + " height=" + height); 1674 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1675 } 1676 1677 layoutRequested = true; 1678 } 1679 } 1680 } 1681 1682 final boolean didLayout = layoutRequested && !mStopped; 1683 boolean triggerGlobalLayoutListener = didLayout 1684 || attachInfo.mRecomputeGlobalAttributes; 1685 if (didLayout) { 1686 performLayout(); 1687 1688 // By this point all views have been sized and positionned 1689 // We can compute the transparent area 1690 1691 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1692 // start out transparent 1693 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1694 host.getLocationInWindow(mTmpLocation); 1695 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1696 mTmpLocation[0] + host.mRight - host.mLeft, 1697 mTmpLocation[1] + host.mBottom - host.mTop); 1698 1699 host.gatherTransparentRegion(mTransparentRegion); 1700 if (mTranslator != null) { 1701 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1702 } 1703 1704 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1705 mPreviousTransparentRegion.set(mTransparentRegion); 1706 // reconfigure window manager 1707 try { 1708 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1709 } catch (RemoteException e) { 1710 } 1711 } 1712 } 1713 1714 if (DBG) { 1715 System.out.println("======================================"); 1716 System.out.println("performTraversals -- after setFrame"); 1717 host.debug(); 1718 } 1719 } 1720 1721 if (triggerGlobalLayoutListener) { 1722 attachInfo.mRecomputeGlobalAttributes = false; 1723 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1724 1725 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1726 postSendWindowContentChangedCallback(mView); 1727 } 1728 } 1729 1730 if (computesInternalInsets) { 1731 // Clear the original insets. 1732 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1733 insets.reset(); 1734 1735 // Compute new insets in place. 1736 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1737 1738 // Tell the window manager. 1739 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1740 mLastGivenInsets.set(insets); 1741 1742 // Translate insets to screen coordinates if needed. 1743 final Rect contentInsets; 1744 final Rect visibleInsets; 1745 final Region touchableRegion; 1746 if (mTranslator != null) { 1747 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1748 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1749 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1750 } else { 1751 contentInsets = insets.contentInsets; 1752 visibleInsets = insets.visibleInsets; 1753 touchableRegion = insets.touchableRegion; 1754 } 1755 1756 try { 1757 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1758 contentInsets, visibleInsets, touchableRegion); 1759 } catch (RemoteException e) { 1760 } 1761 } 1762 } 1763 1764 boolean skipDraw = false; 1765 1766 if (mFirst) { 1767 // handle first focus request 1768 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1769 + mView.hasFocus()); 1770 if (mView != null) { 1771 if (!mView.hasFocus()) { 1772 mView.requestFocus(View.FOCUS_FORWARD); 1773 mFocusedView = mRealFocusedView = mView.findFocus(); 1774 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1775 + mFocusedView); 1776 } else { 1777 mRealFocusedView = mView.findFocus(); 1778 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1779 + mRealFocusedView); 1780 } 1781 } 1782 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1783 // The first time we relayout the window, if the system is 1784 // doing window animations, we want to hold of on any future 1785 // draws until the animation is done. 1786 mWindowsAnimating = true; 1787 } 1788 } else if (mWindowsAnimating) { 1789 skipDraw = true; 1790 } 1791 1792 mFirst = false; 1793 mWillDrawSoon = false; 1794 mNewSurfaceNeeded = false; 1795 mViewVisibility = viewVisibility; 1796 1797 if (mAttachInfo.mHasWindowFocus) { 1798 final boolean imTarget = WindowManager.LayoutParams 1799 .mayUseInputMethod(mWindowAttributes.flags); 1800 if (imTarget != mLastWasImTarget) { 1801 mLastWasImTarget = imTarget; 1802 InputMethodManager imm = InputMethodManager.peekInstance(); 1803 if (imm != null && imTarget) { 1804 imm.startGettingWindowFocus(mView); 1805 imm.onWindowFocus(mView, mView.findFocus(), 1806 mWindowAttributes.softInputMode, 1807 !mHasHadWindowFocus, mWindowAttributes.flags); 1808 } 1809 } 1810 } 1811 1812 // Remember if we must report the next draw. 1813 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1814 mReportNextDraw = true; 1815 } 1816 1817 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1818 viewVisibility != View.VISIBLE; 1819 1820 if (!cancelDraw && !newSurface) { 1821 if (!skipDraw || mReportNextDraw) { 1822 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1823 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1824 mPendingTransitions.get(i).startChangingAnimations(); 1825 } 1826 mPendingTransitions.clear(); 1827 } 1828 1829 performDraw(); 1830 } 1831 } else { 1832 if (viewVisibility == View.VISIBLE) { 1833 // Try again 1834 scheduleTraversals(); 1835 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1836 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1837 mPendingTransitions.get(i).endChangingAnimations(); 1838 } 1839 mPendingTransitions.clear(); 1840 } 1841 } 1842 } 1843 1844 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1845 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1846 try { 1847 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1848 } finally { 1849 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1850 } 1851 } 1852 1853 private void performLayout() { 1854 mLayoutRequested = false; 1855 mScrollMayChange = true; 1856 1857 final View host = mView; 1858 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1859 Log.v(TAG, "Laying out " + host + " to (" + 1860 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1861 } 1862 1863 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1864 try { 1865 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1866 } finally { 1867 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1868 } 1869 } 1870 1871 public void requestTransparentRegion(View child) { 1872 // the test below should not fail unless someone is messing with us 1873 checkThread(); 1874 if (mView == child) { 1875 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1876 // Need to make sure we re-evaluate the window attributes next 1877 // time around, to ensure the window has the correct format. 1878 mWindowAttributesChanged = true; 1879 mWindowAttributesChangesFlag = 0; 1880 requestLayout(); 1881 } 1882 } 1883 1884 /** 1885 * Figures out the measure spec for the root view in a window based on it's 1886 * layout params. 1887 * 1888 * @param windowSize 1889 * The available width or height of the window 1890 * 1891 * @param rootDimension 1892 * The layout params for one dimension (width or height) of the 1893 * window. 1894 * 1895 * @return The measure spec to use to measure the root view. 1896 */ 1897 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1898 int measureSpec; 1899 switch (rootDimension) { 1900 1901 case ViewGroup.LayoutParams.MATCH_PARENT: 1902 // Window can't resize. Force root view to be windowSize. 1903 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1904 break; 1905 case ViewGroup.LayoutParams.WRAP_CONTENT: 1906 // Window can resize. Set max size for root view. 1907 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1908 break; 1909 default: 1910 // Window wants to be an exact size. Force root view to be that size. 1911 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1912 break; 1913 } 1914 return measureSpec; 1915 } 1916 1917 int mHardwareYOffset; 1918 int mResizeAlpha; 1919 final Paint mResizePaint = new Paint(); 1920 1921 public void onHardwarePreDraw(HardwareCanvas canvas) { 1922 canvas.translate(0, -mHardwareYOffset); 1923 } 1924 1925 public void onHardwarePostDraw(HardwareCanvas canvas) { 1926 if (mResizeBuffer != null) { 1927 mResizePaint.setAlpha(mResizeAlpha); 1928 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1929 } 1930 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1931 } 1932 1933 /** 1934 * @hide 1935 */ 1936 void outputDisplayList(View view) { 1937 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1938 DisplayList displayList = view.getDisplayList(); 1939 if (displayList != null) { 1940 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1941 } 1942 } 1943 } 1944 1945 /** 1946 * @see #PROPERTY_PROFILE_RENDERING 1947 */ 1948 private void profileRendering(boolean enabled) { 1949 if (mProfileRendering) { 1950 mRenderProfilingEnabled = enabled; 1951 if (mRenderProfiler == null) { 1952 mRenderProfiler = new Thread(new Runnable() { 1953 @Override 1954 public void run() { 1955 Log.d(TAG, "Starting profiling thread"); 1956 while (mRenderProfilingEnabled) { 1957 mAttachInfo.mHandler.post(new Runnable() { 1958 @Override 1959 public void run() { 1960 mDirty.set(0, 0, mWidth, mHeight); 1961 scheduleTraversals(); 1962 } 1963 }); 1964 try { 1965 // TODO: This should use vsync when we get an API 1966 Thread.sleep(15); 1967 } catch (InterruptedException e) { 1968 Log.d(TAG, "Exiting profiling thread"); 1969 } 1970 } 1971 } 1972 }, "Rendering Profiler"); 1973 mRenderProfiler.start(); 1974 } else { 1975 mRenderProfiler.interrupt(); 1976 mRenderProfiler = null; 1977 } 1978 } 1979 } 1980 1981 /** 1982 * Called from draw() when DEBUG_FPS is enabled 1983 */ 1984 private void trackFPS() { 1985 // Tracks frames per second drawn. First value in a series of draws may be bogus 1986 // because it down not account for the intervening idle time 1987 long nowTime = System.currentTimeMillis(); 1988 if (mFpsStartTime < 0) { 1989 mFpsStartTime = mFpsPrevTime = nowTime; 1990 mFpsNumFrames = 0; 1991 } else { 1992 ++mFpsNumFrames; 1993 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1994 long frameTime = nowTime - mFpsPrevTime; 1995 long totalTime = nowTime - mFpsStartTime; 1996 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1997 mFpsPrevTime = nowTime; 1998 if (totalTime > 1000) { 1999 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2000 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2001 mFpsStartTime = nowTime; 2002 mFpsNumFrames = 0; 2003 } 2004 } 2005 } 2006 2007 private void performDraw() { 2008 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2009 return; 2010 } 2011 2012 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2013 mFullRedrawNeeded = false; 2014 2015 mIsDrawing = true; 2016 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2017 try { 2018 draw(fullRedrawNeeded); 2019 } finally { 2020 mIsDrawing = false; 2021 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2022 } 2023 2024 if (mReportNextDraw) { 2025 mReportNextDraw = false; 2026 2027 if (LOCAL_LOGV) { 2028 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2029 } 2030 if (mSurfaceHolder != null && mSurface.isValid()) { 2031 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2032 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2033 if (callbacks != null) { 2034 for (SurfaceHolder.Callback c : callbacks) { 2035 if (c instanceof SurfaceHolder.Callback2) { 2036 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2037 mSurfaceHolder); 2038 } 2039 } 2040 } 2041 } 2042 try { 2043 sWindowSession.finishDrawing(mWindow); 2044 } catch (RemoteException e) { 2045 } 2046 } 2047 } 2048 2049 private void draw(boolean fullRedrawNeeded) { 2050 Surface surface = mSurface; 2051 if (surface == null || !surface.isValid()) { 2052 return; 2053 } 2054 2055 if (DEBUG_FPS) { 2056 trackFPS(); 2057 } 2058 2059 if (!sFirstDrawComplete) { 2060 synchronized (sFirstDrawHandlers) { 2061 sFirstDrawComplete = true; 2062 final int count = sFirstDrawHandlers.size(); 2063 for (int i = 0; i< count; i++) { 2064 mHandler.post(sFirstDrawHandlers.get(i)); 2065 } 2066 } 2067 } 2068 2069 scrollToRectOrFocus(null, false); 2070 2071 final AttachInfo attachInfo = mAttachInfo; 2072 if (attachInfo.mViewScrollChanged) { 2073 attachInfo.mViewScrollChanged = false; 2074 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2075 } 2076 2077 int yoff; 2078 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2079 if (animating) { 2080 yoff = mScroller.getCurrY(); 2081 } else { 2082 yoff = mScrollY; 2083 } 2084 if (mCurScrollY != yoff) { 2085 mCurScrollY = yoff; 2086 fullRedrawNeeded = true; 2087 } 2088 2089 final float appScale = attachInfo.mApplicationScale; 2090 final boolean scalingRequired = attachInfo.mScalingRequired; 2091 2092 int resizeAlpha = 0; 2093 if (mResizeBuffer != null) { 2094 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2095 if (deltaTime < mResizeBufferDuration) { 2096 float amt = deltaTime/(float) mResizeBufferDuration; 2097 amt = mResizeInterpolator.getInterpolation(amt); 2098 animating = true; 2099 resizeAlpha = 255 - (int)(amt*255); 2100 } else { 2101 disposeResizeBuffer(); 2102 } 2103 } 2104 2105 final Rect dirty = mDirty; 2106 if (mSurfaceHolder != null) { 2107 // The app owns the surface, we won't draw. 2108 dirty.setEmpty(); 2109 if (animating) { 2110 if (mScroller != null) { 2111 mScroller.abortAnimation(); 2112 } 2113 disposeResizeBuffer(); 2114 } 2115 return; 2116 } 2117 2118 if (fullRedrawNeeded) { 2119 attachInfo.mIgnoreDirtyState = true; 2120 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2121 } 2122 2123 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2124 Log.v(TAG, "Draw " + mView + "/" 2125 + mWindowAttributes.getTitle() 2126 + ": dirty={" + dirty.left + "," + dirty.top 2127 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2128 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2129 appScale + ", width=" + mWidth + ", height=" + mHeight); 2130 } 2131 2132 attachInfo.mTreeObserver.dispatchOnDraw(); 2133 2134 if (!dirty.isEmpty() || mIsAnimating) { 2135 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2136 // Draw with hardware renderer. 2137 mIsAnimating = false; 2138 mHardwareYOffset = yoff; 2139 mResizeAlpha = resizeAlpha; 2140 2141 mCurrentDirty.set(dirty); 2142 mCurrentDirty.union(mPreviousDirty); 2143 mPreviousDirty.set(dirty); 2144 dirty.setEmpty(); 2145 2146 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2147 animating ? null : mCurrentDirty)) { 2148 mPreviousDirty.set(0, 0, mWidth, mHeight); 2149 } 2150 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2151 return; 2152 } 2153 } 2154 2155 if (animating) { 2156 mFullRedrawNeeded = true; 2157 scheduleTraversals(); 2158 } 2159 } 2160 2161 /** 2162 * @return true if drawing was succesfull, false if an error occurred 2163 */ 2164 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2165 boolean scalingRequired, Rect dirty) { 2166 2167 // If we get here with a disabled & requested hardware renderer, something went 2168 // wrong (an invalidate posted right before we destroyed the hardware surface 2169 // for instance) so we should just bail out. Locking the surface with software 2170 // rendering at this point would lock it forever and prevent hardware renderer 2171 // from doing its job when it comes back. 2172 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2173 attachInfo.mHardwareRenderer.isRequested()) { 2174 mFullRedrawNeeded = true; 2175 scheduleTraversals(); 2176 return false; 2177 } 2178 2179 // Draw with software renderer. 2180 Canvas canvas; 2181 try { 2182 int left = dirty.left; 2183 int top = dirty.top; 2184 int right = dirty.right; 2185 int bottom = dirty.bottom; 2186 2187 canvas = mSurface.lockCanvas(dirty); 2188 2189 if (left != dirty.left || top != dirty.top || right != dirty.right || 2190 bottom != dirty.bottom) { 2191 attachInfo.mIgnoreDirtyState = true; 2192 } 2193 2194 // TODO: Do this in native 2195 canvas.setDensity(mDensity); 2196 } catch (Surface.OutOfResourcesException e) { 2197 Log.e(TAG, "OutOfResourcesException locking surface", e); 2198 try { 2199 if (!sWindowSession.outOfMemory(mWindow)) { 2200 Slog.w(TAG, "No processes killed for memory; killing self"); 2201 Process.killProcess(Process.myPid()); 2202 } 2203 } catch (RemoteException ex) { 2204 } 2205 mLayoutRequested = true; // ask wm for a new surface next time. 2206 return false; 2207 } catch (IllegalArgumentException e) { 2208 Log.e(TAG, "Could not lock surface", e); 2209 // Don't assume this is due to out of memory, it could be 2210 // something else, and if it is something else then we could 2211 // kill stuff (or ourself) for no reason. 2212 mLayoutRequested = true; // ask wm for a new surface next time. 2213 return false; 2214 } 2215 2216 try { 2217 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2218 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2219 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2220 //canvas.drawARGB(255, 255, 0, 0); 2221 } 2222 2223 // If this bitmap's format includes an alpha channel, we 2224 // need to clear it before drawing so that the child will 2225 // properly re-composite its drawing on a transparent 2226 // background. This automatically respects the clip/dirty region 2227 // or 2228 // If we are applying an offset, we need to clear the area 2229 // where the offset doesn't appear to avoid having garbage 2230 // left in the blank areas. 2231 if (!canvas.isOpaque() || yoff != 0) { 2232 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2233 } 2234 2235 dirty.setEmpty(); 2236 mIsAnimating = false; 2237 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2238 mView.mPrivateFlags |= View.DRAWN; 2239 2240 if (DEBUG_DRAW) { 2241 Context cxt = mView.getContext(); 2242 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2243 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2244 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2245 } 2246 try { 2247 canvas.translate(0, -yoff); 2248 if (mTranslator != null) { 2249 mTranslator.translateCanvas(canvas); 2250 } 2251 canvas.setScreenDensity(scalingRequired 2252 ? DisplayMetrics.DENSITY_DEVICE : 0); 2253 attachInfo.mSetIgnoreDirtyState = false; 2254 2255 mView.draw(canvas); 2256 2257 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2258 } finally { 2259 if (!attachInfo.mSetIgnoreDirtyState) { 2260 // Only clear the flag if it was not set during the mView.draw() call 2261 attachInfo.mIgnoreDirtyState = false; 2262 } 2263 } 2264 } finally { 2265 try { 2266 surface.unlockCanvasAndPost(canvas); 2267 } catch (IllegalArgumentException e) { 2268 Log.e(TAG, "Could not unlock surface", e); 2269 mLayoutRequested = true; // ask wm for a new surface next time. 2270 //noinspection ReturnInsideFinallyBlock 2271 return false; 2272 } 2273 2274 if (LOCAL_LOGV) { 2275 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2276 } 2277 } 2278 return true; 2279 } 2280 2281 @Override 2282 public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 2283 if (descendant.includeForAccessibility()) { 2284 return descendant; 2285 } 2286 return null; 2287 } 2288 2289 /** 2290 * We want to draw a highlight around the current accessibility focused. 2291 * Since adding a style for all possible view is not a viable option we 2292 * have this specialized drawing method. 2293 * 2294 * Note: We are doing this here to be able to draw the highlight for 2295 * virtual views in addition to real ones. 2296 * 2297 * @param canvas The canvas on which to draw. 2298 */ 2299 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2300 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2301 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2302 return; 2303 } 2304 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2305 return; 2306 } 2307 Drawable drawable = getAccessibilityFocusedDrawable(); 2308 if (drawable == null) { 2309 return; 2310 } 2311 AccessibilityNodeProvider provider = 2312 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2313 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2314 if (provider == null) { 2315 mAccessibilityFocusedHost.getDrawingRect(bounds); 2316 if (mView instanceof ViewGroup) { 2317 ViewGroup viewGroup = (ViewGroup) mView; 2318 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2319 } 2320 } else { 2321 if (mAccessibilityFocusedVirtualView == null) { 2322 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2323 } 2324 if (mAccessibilityFocusedVirtualView == null) { 2325 return; 2326 } 2327 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2328 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2329 } 2330 drawable.setBounds(bounds); 2331 drawable.draw(canvas); 2332 } 2333 2334 private Drawable getAccessibilityFocusedDrawable() { 2335 if (mAttachInfo != null) { 2336 // Lazily load the accessibility focus drawable. 2337 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2338 TypedValue value = new TypedValue(); 2339 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2340 R.attr.accessibilityFocusedDrawable, value, true); 2341 if (resolved) { 2342 mAttachInfo.mAccessibilityFocusDrawable = 2343 mView.mContext.getResources().getDrawable(value.resourceId); 2344 } 2345 } 2346 return mAttachInfo.mAccessibilityFocusDrawable; 2347 } 2348 return null; 2349 } 2350 2351 void invalidateDisplayLists() { 2352 final ArrayList<DisplayList> displayLists = mDisplayLists; 2353 final int count = displayLists.size(); 2354 2355 for (int i = 0; i < count; i++) { 2356 final DisplayList displayList = displayLists.get(i); 2357 displayList.invalidate(); 2358 displayList.clear(); 2359 } 2360 2361 displayLists.clear(); 2362 } 2363 2364 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2365 final View.AttachInfo attachInfo = mAttachInfo; 2366 final Rect ci = attachInfo.mContentInsets; 2367 final Rect vi = attachInfo.mVisibleInsets; 2368 int scrollY = 0; 2369 boolean handled = false; 2370 2371 if (vi.left > ci.left || vi.top > ci.top 2372 || vi.right > ci.right || vi.bottom > ci.bottom) { 2373 // We'll assume that we aren't going to change the scroll 2374 // offset, since we want to avoid that unless it is actually 2375 // going to make the focus visible... otherwise we scroll 2376 // all over the place. 2377 scrollY = mScrollY; 2378 // We can be called for two different situations: during a draw, 2379 // to update the scroll position if the focus has changed (in which 2380 // case 'rectangle' is null), or in response to a 2381 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2382 // is non-null and we just want to scroll to whatever that 2383 // rectangle is). 2384 View focus = mRealFocusedView; 2385 2386 // When in touch mode, focus points to the previously focused view, 2387 // which may have been removed from the view hierarchy. The following 2388 // line checks whether the view is still in our hierarchy. 2389 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2390 mRealFocusedView = null; 2391 return false; 2392 } 2393 2394 if (focus != mLastScrolledFocus) { 2395 // If the focus has changed, then ignore any requests to scroll 2396 // to a rectangle; first we want to make sure the entire focus 2397 // view is visible. 2398 rectangle = null; 2399 } 2400 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2401 + " rectangle=" + rectangle + " ci=" + ci 2402 + " vi=" + vi); 2403 if (focus == mLastScrolledFocus && !mScrollMayChange 2404 && rectangle == null) { 2405 // Optimization: if the focus hasn't changed since last 2406 // time, and no layout has happened, then just leave things 2407 // as they are. 2408 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2409 + mScrollY + " vi=" + vi.toShortString()); 2410 } else if (focus != null) { 2411 // We need to determine if the currently focused view is 2412 // within the visible part of the window and, if not, apply 2413 // a pan so it can be seen. 2414 mLastScrolledFocus = focus; 2415 mScrollMayChange = false; 2416 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2417 // Try to find the rectangle from the focus view. 2418 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2419 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2420 + mView.getWidth() + " h=" + mView.getHeight() 2421 + " ci=" + ci.toShortString() 2422 + " vi=" + vi.toShortString()); 2423 if (rectangle == null) { 2424 focus.getFocusedRect(mTempRect); 2425 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2426 + ": focusRect=" + mTempRect.toShortString()); 2427 if (mView instanceof ViewGroup) { 2428 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2429 focus, mTempRect); 2430 } 2431 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2432 "Focus in window: focusRect=" 2433 + mTempRect.toShortString() 2434 + " visRect=" + mVisRect.toShortString()); 2435 } else { 2436 mTempRect.set(rectangle); 2437 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2438 "Request scroll to rect: " 2439 + mTempRect.toShortString() 2440 + " visRect=" + mVisRect.toShortString()); 2441 } 2442 if (mTempRect.intersect(mVisRect)) { 2443 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2444 "Focus window visible rect: " 2445 + mTempRect.toShortString()); 2446 if (mTempRect.height() > 2447 (mView.getHeight()-vi.top-vi.bottom)) { 2448 // If the focus simply is not going to fit, then 2449 // best is probably just to leave things as-is. 2450 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2451 "Too tall; leaving scrollY=" + scrollY); 2452 } else if ((mTempRect.top-scrollY) < vi.top) { 2453 scrollY -= vi.top - (mTempRect.top-scrollY); 2454 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2455 "Top covered; scrollY=" + scrollY); 2456 } else if ((mTempRect.bottom-scrollY) 2457 > (mView.getHeight()-vi.bottom)) { 2458 scrollY += (mTempRect.bottom-scrollY) 2459 - (mView.getHeight()-vi.bottom); 2460 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2461 "Bottom covered; scrollY=" + scrollY); 2462 } 2463 handled = true; 2464 } 2465 } 2466 } 2467 } 2468 2469 if (scrollY != mScrollY) { 2470 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2471 + mScrollY + " , new=" + scrollY); 2472 if (!immediate && mResizeBuffer == null) { 2473 if (mScroller == null) { 2474 mScroller = new Scroller(mView.getContext()); 2475 } 2476 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2477 } else if (mScroller != null) { 2478 mScroller.abortAnimation(); 2479 } 2480 mScrollY = scrollY; 2481 } 2482 2483 return handled; 2484 } 2485 2486 /** 2487 * @hide 2488 */ 2489 public View getAccessibilityFocusedHost() { 2490 return mAccessibilityFocusedHost; 2491 } 2492 2493 /** 2494 * @hide 2495 */ 2496 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2497 return mAccessibilityFocusedVirtualView; 2498 } 2499 2500 void setAccessibilityFocusedHost(View host) { 2501 // If we have a virtual view with accessibility focus we need 2502 // to clear the focus and invalidate the virtual view bounds. 2503 if (mAccessibilityFocusedVirtualView != null) { 2504 2505 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2506 View focusHost = mAccessibilityFocusedHost; 2507 focusHost.clearAccessibilityFocusNoCallbacks(); 2508 2509 // Wipe the state of the current accessibility focus since 2510 // the call into the provider to clear accessibility focus 2511 // will fire an accessibility event which will end up calling 2512 // this method and we want to have clean state when this 2513 // invocation happens. 2514 mAccessibilityFocusedHost = null; 2515 mAccessibilityFocusedVirtualView = null; 2516 2517 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2518 if (provider != null) { 2519 // Invalidate the area of the cleared accessibility focus. 2520 focusNode.getBoundsInParent(mTempRect); 2521 focusHost.invalidate(mTempRect); 2522 // Clear accessibility focus in the virtual node. 2523 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2524 focusNode.getSourceNodeId()); 2525 provider.performAction(virtualNodeId, 2526 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2527 } 2528 } 2529 if (mAccessibilityFocusedHost != null) { 2530 // Clear accessibility focus in the view. 2531 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2532 } 2533 2534 // Set the new focus host. 2535 mAccessibilityFocusedHost = host; 2536 2537 // If the host has a provide find the virtual descendant that has focus. 2538 if (mAccessibilityFocusedHost != null) { 2539 AccessibilityNodeProvider provider = 2540 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2541 if (provider != null) { 2542 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2543 return; 2544 } 2545 } 2546 } 2547 2548 public void requestChildFocus(View child, View focused) { 2549 checkThread(); 2550 2551 if (DEBUG_INPUT_RESIZE) { 2552 Log.v(TAG, "Request child focus: focus now " + focused); 2553 } 2554 2555 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2556 scheduleTraversals(); 2557 2558 mFocusedView = mRealFocusedView = focused; 2559 } 2560 2561 public void clearChildFocus(View child) { 2562 checkThread(); 2563 2564 if (DEBUG_INPUT_RESIZE) { 2565 Log.v(TAG, "Clearing child focus"); 2566 } 2567 2568 mOldFocusedView = mFocusedView; 2569 2570 // Invoke the listener only if there is no view to take focus 2571 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2572 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2573 } 2574 2575 mFocusedView = mRealFocusedView = null; 2576 } 2577 2578 @Override 2579 public ViewParent getParentForAccessibility() { 2580 return null; 2581 } 2582 2583 public void focusableViewAvailable(View v) { 2584 checkThread(); 2585 if (mView != null) { 2586 if (!mView.hasFocus()) { 2587 v.requestFocus(); 2588 } else { 2589 // the one case where will transfer focus away from the current one 2590 // is if the current view is a view group that prefers to give focus 2591 // to its children first AND the view is a descendant of it. 2592 mFocusedView = mView.findFocus(); 2593 boolean descendantsHaveDibsOnFocus = 2594 (mFocusedView instanceof ViewGroup) && 2595 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2596 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2597 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2598 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2599 v.requestFocus(); 2600 } 2601 } 2602 } 2603 } 2604 2605 public void recomputeViewAttributes(View child) { 2606 checkThread(); 2607 if (mView == child) { 2608 mAttachInfo.mRecomputeGlobalAttributes = true; 2609 if (!mWillDrawSoon) { 2610 scheduleTraversals(); 2611 } 2612 } 2613 } 2614 2615 void dispatchDetachedFromWindow() { 2616 if (mView != null && mView.mAttachInfo != null) { 2617 if (mAttachInfo.mHardwareRenderer != null && 2618 mAttachInfo.mHardwareRenderer.isEnabled()) { 2619 mAttachInfo.mHardwareRenderer.validate(); 2620 } 2621 mView.dispatchDetachedFromWindow(); 2622 } 2623 2624 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2625 mAccessibilityManager.removeAccessibilityStateChangeListener( 2626 mAccessibilityInteractionConnectionManager); 2627 removeSendWindowContentChangedCallback(); 2628 2629 destroyHardwareRenderer(); 2630 2631 setAccessibilityFocusedHost(null); 2632 2633 mView = null; 2634 mAttachInfo.mRootView = null; 2635 mAttachInfo.mSurface = null; 2636 2637 mSurface.release(); 2638 2639 if (mInputQueueCallback != null && mInputQueue != null) { 2640 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2641 mInputQueueCallback = null; 2642 mInputQueue = null; 2643 } else if (mInputEventReceiver != null) { 2644 mInputEventReceiver.dispose(); 2645 mInputEventReceiver = null; 2646 } 2647 try { 2648 sWindowSession.remove(mWindow); 2649 } catch (RemoteException e) { 2650 } 2651 2652 // Dispose the input channel after removing the window so the Window Manager 2653 // doesn't interpret the input channel being closed as an abnormal termination. 2654 if (mInputChannel != null) { 2655 mInputChannel.dispose(); 2656 mInputChannel = null; 2657 } 2658 2659 unscheduleTraversals(); 2660 } 2661 2662 void updateConfiguration(Configuration config, boolean force) { 2663 if (DEBUG_CONFIGURATION) Log.v(TAG, 2664 "Applying new config to window " 2665 + mWindowAttributes.getTitle() 2666 + ": " + config); 2667 2668 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2669 if (ci != null) { 2670 config = new Configuration(config); 2671 ci.applyToConfiguration(config); 2672 } 2673 2674 synchronized (sConfigCallbacks) { 2675 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2676 sConfigCallbacks.get(i).onConfigurationChanged(config); 2677 } 2678 } 2679 if (mView != null) { 2680 // At this point the resources have been updated to 2681 // have the most recent config, whatever that is. Use 2682 // the on in them which may be newer. 2683 config = mView.getResources().getConfiguration(); 2684 if (force || mLastConfiguration.diff(config) != 0) { 2685 mLastConfiguration.setTo(config); 2686 mView.dispatchConfigurationChanged(config); 2687 } 2688 } 2689 } 2690 2691 /** 2692 * Return true if child is an ancestor of parent, (or equal to the parent). 2693 */ 2694 public static boolean isViewDescendantOf(View child, View parent) { 2695 if (child == parent) { 2696 return true; 2697 } 2698 2699 final ViewParent theParent = child.getParent(); 2700 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2701 } 2702 2703 private static void forceLayout(View view) { 2704 view.forceLayout(); 2705 if (view instanceof ViewGroup) { 2706 ViewGroup group = (ViewGroup) view; 2707 final int count = group.getChildCount(); 2708 for (int i = 0; i < count; i++) { 2709 forceLayout(group.getChildAt(i)); 2710 } 2711 } 2712 } 2713 2714 private final static int MSG_INVALIDATE = 1; 2715 private final static int MSG_INVALIDATE_RECT = 2; 2716 private final static int MSG_DIE = 3; 2717 private final static int MSG_RESIZED = 4; 2718 private final static int MSG_RESIZED_REPORT = 5; 2719 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2720 private final static int MSG_DISPATCH_KEY = 7; 2721 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2722 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2723 private final static int MSG_IME_FINISHED_EVENT = 10; 2724 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2725 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2726 private final static int MSG_CHECK_FOCUS = 13; 2727 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2728 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2729 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2730 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2731 private final static int MSG_UPDATE_CONFIGURATION = 18; 2732 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2733 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2734 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2735 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2736 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2737 private final static int MSG_INVALIDATE_WORLD = 24; 2738 2739 final class ViewRootHandler extends Handler { 2740 @Override 2741 public String getMessageName(Message message) { 2742 switch (message.what) { 2743 case MSG_INVALIDATE: 2744 return "MSG_INVALIDATE"; 2745 case MSG_INVALIDATE_RECT: 2746 return "MSG_INVALIDATE_RECT"; 2747 case MSG_DIE: 2748 return "MSG_DIE"; 2749 case MSG_RESIZED: 2750 return "MSG_RESIZED"; 2751 case MSG_RESIZED_REPORT: 2752 return "MSG_RESIZED_REPORT"; 2753 case MSG_WINDOW_FOCUS_CHANGED: 2754 return "MSG_WINDOW_FOCUS_CHANGED"; 2755 case MSG_DISPATCH_KEY: 2756 return "MSG_DISPATCH_KEY"; 2757 case MSG_DISPATCH_APP_VISIBILITY: 2758 return "MSG_DISPATCH_APP_VISIBILITY"; 2759 case MSG_DISPATCH_GET_NEW_SURFACE: 2760 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2761 case MSG_IME_FINISHED_EVENT: 2762 return "MSG_IME_FINISHED_EVENT"; 2763 case MSG_DISPATCH_KEY_FROM_IME: 2764 return "MSG_DISPATCH_KEY_FROM_IME"; 2765 case MSG_FINISH_INPUT_CONNECTION: 2766 return "MSG_FINISH_INPUT_CONNECTION"; 2767 case MSG_CHECK_FOCUS: 2768 return "MSG_CHECK_FOCUS"; 2769 case MSG_CLOSE_SYSTEM_DIALOGS: 2770 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2771 case MSG_DISPATCH_DRAG_EVENT: 2772 return "MSG_DISPATCH_DRAG_EVENT"; 2773 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2774 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2775 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2776 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2777 case MSG_UPDATE_CONFIGURATION: 2778 return "MSG_UPDATE_CONFIGURATION"; 2779 case MSG_PROCESS_INPUT_EVENTS: 2780 return "MSG_PROCESS_INPUT_EVENTS"; 2781 case MSG_DISPATCH_SCREEN_STATE: 2782 return "MSG_DISPATCH_SCREEN_STATE"; 2783 case MSG_INVALIDATE_DISPLAY_LIST: 2784 return "MSG_INVALIDATE_DISPLAY_LIST"; 2785 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2786 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2787 case MSG_DISPATCH_DONE_ANIMATING: 2788 return "MSG_DISPATCH_DONE_ANIMATING"; 2789 } 2790 return super.getMessageName(message); 2791 } 2792 2793 @Override 2794 public void handleMessage(Message msg) { 2795 switch (msg.what) { 2796 case MSG_INVALIDATE: 2797 ((View) msg.obj).invalidate(); 2798 break; 2799 case MSG_INVALIDATE_RECT: 2800 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2801 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2802 info.release(); 2803 break; 2804 case MSG_IME_FINISHED_EVENT: 2805 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2806 break; 2807 case MSG_PROCESS_INPUT_EVENTS: 2808 mProcessInputEventsScheduled = false; 2809 doProcessInputEvents(); 2810 break; 2811 case MSG_DISPATCH_APP_VISIBILITY: 2812 handleAppVisibility(msg.arg1 != 0); 2813 break; 2814 case MSG_DISPATCH_GET_NEW_SURFACE: 2815 handleGetNewSurface(); 2816 break; 2817 case MSG_RESIZED: 2818 ResizedInfo ri = (ResizedInfo)msg.obj; 2819 2820 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2821 && mPendingContentInsets.equals(ri.contentInsets) 2822 && mPendingVisibleInsets.equals(ri.visibleInsets) 2823 && ((ResizedInfo)msg.obj).newConfig == null) { 2824 break; 2825 } 2826 // fall through... 2827 case MSG_RESIZED_REPORT: 2828 if (mAdded) { 2829 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2830 if (config != null) { 2831 updateConfiguration(config, false); 2832 } 2833 mWinFrame.left = 0; 2834 mWinFrame.right = msg.arg1; 2835 mWinFrame.top = 0; 2836 mWinFrame.bottom = msg.arg2; 2837 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2838 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2839 if (msg.what == MSG_RESIZED_REPORT) { 2840 mReportNextDraw = true; 2841 } 2842 2843 if (mView != null) { 2844 forceLayout(mView); 2845 } 2846 requestLayout(); 2847 } 2848 break; 2849 case MSG_WINDOW_FOCUS_CHANGED: { 2850 if (mAdded) { 2851 boolean hasWindowFocus = msg.arg1 != 0; 2852 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2853 2854 profileRendering(hasWindowFocus); 2855 2856 if (hasWindowFocus) { 2857 boolean inTouchMode = msg.arg2 != 0; 2858 ensureTouchModeLocally(inTouchMode); 2859 2860 if (mAttachInfo.mHardwareRenderer != null && 2861 mSurface != null && mSurface.isValid()) { 2862 mFullRedrawNeeded = true; 2863 try { 2864 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2865 mHolder); 2866 } catch (Surface.OutOfResourcesException e) { 2867 Log.e(TAG, "OutOfResourcesException locking surface", e); 2868 try { 2869 if (!sWindowSession.outOfMemory(mWindow)) { 2870 Slog.w(TAG, "No processes killed for memory; killing self"); 2871 Process.killProcess(Process.myPid()); 2872 } 2873 } catch (RemoteException ex) { 2874 } 2875 // Retry in a bit. 2876 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2877 return; 2878 } 2879 } 2880 } 2881 2882 mLastWasImTarget = WindowManager.LayoutParams 2883 .mayUseInputMethod(mWindowAttributes.flags); 2884 2885 InputMethodManager imm = InputMethodManager.peekInstance(); 2886 if (mView != null) { 2887 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2888 imm.startGettingWindowFocus(mView); 2889 } 2890 mAttachInfo.mKeyDispatchState.reset(); 2891 mView.dispatchWindowFocusChanged(hasWindowFocus); 2892 } 2893 2894 // Note: must be done after the focus change callbacks, 2895 // so all of the view state is set up correctly. 2896 if (hasWindowFocus) { 2897 if (imm != null && mLastWasImTarget) { 2898 imm.onWindowFocus(mView, mView.findFocus(), 2899 mWindowAttributes.softInputMode, 2900 !mHasHadWindowFocus, mWindowAttributes.flags); 2901 } 2902 // Clear the forward bit. We can just do this directly, since 2903 // the window manager doesn't care about it. 2904 mWindowAttributes.softInputMode &= 2905 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2906 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2907 .softInputMode &= 2908 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2909 mHasHadWindowFocus = true; 2910 } 2911 2912 setAccessibilityFocusedHost(null); 2913 2914 if (mView != null && mAccessibilityManager.isEnabled()) { 2915 if (hasWindowFocus) { 2916 mView.sendAccessibilityEvent( 2917 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2918 } 2919 } 2920 } 2921 } break; 2922 case MSG_DIE: 2923 doDie(); 2924 break; 2925 case MSG_DISPATCH_KEY: { 2926 KeyEvent event = (KeyEvent)msg.obj; 2927 enqueueInputEvent(event, null, 0, true); 2928 } break; 2929 case MSG_DISPATCH_KEY_FROM_IME: { 2930 if (LOCAL_LOGV) Log.v( 2931 TAG, "Dispatching key " 2932 + msg.obj + " from IME to " + mView); 2933 KeyEvent event = (KeyEvent)msg.obj; 2934 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2935 // The IME is trying to say this event is from the 2936 // system! Bad bad bad! 2937 //noinspection UnusedAssignment 2938 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2939 } 2940 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2941 } break; 2942 case MSG_FINISH_INPUT_CONNECTION: { 2943 InputMethodManager imm = InputMethodManager.peekInstance(); 2944 if (imm != null) { 2945 imm.reportFinishInputConnection((InputConnection)msg.obj); 2946 } 2947 } break; 2948 case MSG_CHECK_FOCUS: { 2949 InputMethodManager imm = InputMethodManager.peekInstance(); 2950 if (imm != null) { 2951 imm.checkFocus(); 2952 } 2953 } break; 2954 case MSG_CLOSE_SYSTEM_DIALOGS: { 2955 if (mView != null) { 2956 mView.onCloseSystemDialogs((String)msg.obj); 2957 } 2958 } break; 2959 case MSG_DISPATCH_DRAG_EVENT: 2960 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2961 DragEvent event = (DragEvent)msg.obj; 2962 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2963 handleDragEvent(event); 2964 } break; 2965 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2966 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2967 } break; 2968 case MSG_UPDATE_CONFIGURATION: { 2969 Configuration config = (Configuration)msg.obj; 2970 if (config.isOtherSeqNewer(mLastConfiguration)) { 2971 config = mLastConfiguration; 2972 } 2973 updateConfiguration(config, false); 2974 } break; 2975 case MSG_DISPATCH_SCREEN_STATE: { 2976 if (mView != null) { 2977 handleScreenStateChange(msg.arg1 == 1); 2978 } 2979 } break; 2980 case MSG_INVALIDATE_DISPLAY_LIST: { 2981 invalidateDisplayLists(); 2982 } break; 2983 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2984 setAccessibilityFocusedHost(null); 2985 } break; 2986 case MSG_DISPATCH_DONE_ANIMATING: { 2987 handleDispatchDoneAnimating(); 2988 } break; 2989 case MSG_INVALIDATE_WORLD: { 2990 invalidateWorld(mView); 2991 } break; 2992 } 2993 } 2994 } 2995 2996 final ViewRootHandler mHandler = new ViewRootHandler(); 2997 2998 /** 2999 * Something in the current window tells us we need to change the touch mode. For 3000 * example, we are not in touch mode, and the user touches the screen. 3001 * 3002 * If the touch mode has changed, tell the window manager, and handle it locally. 3003 * 3004 * @param inTouchMode Whether we want to be in touch mode. 3005 * @return True if the touch mode changed and focus changed was changed as a result 3006 */ 3007 boolean ensureTouchMode(boolean inTouchMode) { 3008 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3009 + "touch mode is " + mAttachInfo.mInTouchMode); 3010 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3011 3012 // tell the window manager 3013 try { 3014 sWindowSession.setInTouchMode(inTouchMode); 3015 } catch (RemoteException e) { 3016 throw new RuntimeException(e); 3017 } 3018 3019 // handle the change 3020 return ensureTouchModeLocally(inTouchMode); 3021 } 3022 3023 /** 3024 * Ensure that the touch mode for this window is set, and if it is changing, 3025 * take the appropriate action. 3026 * @param inTouchMode Whether we want to be in touch mode. 3027 * @return True if the touch mode changed and focus changed was changed as a result 3028 */ 3029 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3030 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3031 + "touch mode is " + mAttachInfo.mInTouchMode); 3032 3033 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3034 3035 mAttachInfo.mInTouchMode = inTouchMode; 3036 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3037 3038 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3039 } 3040 3041 private boolean enterTouchMode() { 3042 if (mView != null) { 3043 if (mView.hasFocus()) { 3044 // note: not relying on mFocusedView here because this could 3045 // be when the window is first being added, and mFocused isn't 3046 // set yet. 3047 final View focused = mView.findFocus(); 3048 if (focused != null && !focused.isFocusableInTouchMode()) { 3049 3050 final ViewGroup ancestorToTakeFocus = 3051 findAncestorToTakeFocusInTouchMode(focused); 3052 if (ancestorToTakeFocus != null) { 3053 // there is an ancestor that wants focus after its descendants that 3054 // is focusable in touch mode.. give it focus 3055 return ancestorToTakeFocus.requestFocus(); 3056 } else { 3057 // nothing appropriate to have focus in touch mode, clear it out 3058 mView.unFocus(); 3059 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3060 mFocusedView = null; 3061 mOldFocusedView = null; 3062 return true; 3063 } 3064 } 3065 } 3066 } 3067 return false; 3068 } 3069 3070 /** 3071 * Find an ancestor of focused that wants focus after its descendants and is 3072 * focusable in touch mode. 3073 * @param focused The currently focused view. 3074 * @return An appropriate view, or null if no such view exists. 3075 */ 3076 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3077 ViewParent parent = focused.getParent(); 3078 while (parent instanceof ViewGroup) { 3079 final ViewGroup vgParent = (ViewGroup) parent; 3080 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3081 && vgParent.isFocusableInTouchMode()) { 3082 return vgParent; 3083 } 3084 if (vgParent.isRootNamespace()) { 3085 return null; 3086 } else { 3087 parent = vgParent.getParent(); 3088 } 3089 } 3090 return null; 3091 } 3092 3093 private boolean leaveTouchMode() { 3094 if (mView != null) { 3095 if (mView.hasFocus()) { 3096 // i learned the hard way to not trust mFocusedView :) 3097 mFocusedView = mView.findFocus(); 3098 if (!(mFocusedView instanceof ViewGroup)) { 3099 // some view has focus, let it keep it 3100 return false; 3101 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3102 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3103 // some view group has focus, and doesn't prefer its children 3104 // over itself for focus, so let them keep it. 3105 return false; 3106 } 3107 } 3108 3109 // find the best view to give focus to in this brave new non-touch-mode 3110 // world 3111 final View focused = focusSearch(null, View.FOCUS_DOWN); 3112 if (focused != null) { 3113 return focused.requestFocus(View.FOCUS_DOWN); 3114 } 3115 } 3116 return false; 3117 } 3118 3119 private void deliverInputEvent(QueuedInputEvent q) { 3120 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3121 try { 3122 if (q.mEvent instanceof KeyEvent) { 3123 deliverKeyEvent(q); 3124 } else { 3125 final int source = q.mEvent.getSource(); 3126 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3127 deliverPointerEvent(q); 3128 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3129 deliverTrackballEvent(q); 3130 } else { 3131 deliverGenericMotionEvent(q); 3132 } 3133 } 3134 } finally { 3135 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3136 } 3137 } 3138 3139 private void deliverPointerEvent(QueuedInputEvent q) { 3140 final MotionEvent event = (MotionEvent)q.mEvent; 3141 final boolean isTouchEvent = event.isTouchEvent(); 3142 if (mInputEventConsistencyVerifier != null) { 3143 if (isTouchEvent) { 3144 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3145 } else { 3146 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3147 } 3148 } 3149 3150 // If there is no view, then the event will not be handled. 3151 if (mView == null || !mAdded) { 3152 finishInputEvent(q, false); 3153 return; 3154 } 3155 3156 // Translate the pointer event for compatibility, if needed. 3157 if (mTranslator != null) { 3158 mTranslator.translateEventInScreenToAppWindow(event); 3159 } 3160 3161 // Enter touch mode on down or scroll. 3162 final int action = event.getAction(); 3163 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3164 ensureTouchMode(true); 3165 } 3166 3167 // Offset the scroll position. 3168 if (mCurScrollY != 0) { 3169 event.offsetLocation(0, mCurScrollY); 3170 } 3171 if (MEASURE_LATENCY) { 3172 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3173 } 3174 3175 // Remember the touch position for possible drag-initiation. 3176 if (isTouchEvent) { 3177 mLastTouchPoint.x = event.getRawX(); 3178 mLastTouchPoint.y = event.getRawY(); 3179 } 3180 3181 // Dispatch touch to view hierarchy. 3182 boolean handled = mView.dispatchPointerEvent(event); 3183 if (MEASURE_LATENCY) { 3184 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3185 } 3186 if (handled) { 3187 finishInputEvent(q, true); 3188 return; 3189 } 3190 3191 // Pointer event was unhandled. 3192 finishInputEvent(q, false); 3193 } 3194 3195 private void deliverTrackballEvent(QueuedInputEvent q) { 3196 final MotionEvent event = (MotionEvent)q.mEvent; 3197 if (mInputEventConsistencyVerifier != null) { 3198 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3199 } 3200 3201 // If there is no view, then the event will not be handled. 3202 if (mView == null || !mAdded) { 3203 finishInputEvent(q, false); 3204 return; 3205 } 3206 3207 // Deliver the trackball event to the view. 3208 if (mView.dispatchTrackballEvent(event)) { 3209 // If we reach this, we delivered a trackball event to mView and 3210 // mView consumed it. Because we will not translate the trackball 3211 // event into a key event, touch mode will not exit, so we exit 3212 // touch mode here. 3213 ensureTouchMode(false); 3214 3215 finishInputEvent(q, true); 3216 mLastTrackballTime = Integer.MIN_VALUE; 3217 return; 3218 } 3219 3220 // Translate the trackball event into DPAD keys and try to deliver those. 3221 final TrackballAxis x = mTrackballAxisX; 3222 final TrackballAxis y = mTrackballAxisY; 3223 3224 long curTime = SystemClock.uptimeMillis(); 3225 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3226 // It has been too long since the last movement, 3227 // so restart at the beginning. 3228 x.reset(0); 3229 y.reset(0); 3230 mLastTrackballTime = curTime; 3231 } 3232 3233 final int action = event.getAction(); 3234 final int metaState = event.getMetaState(); 3235 switch (action) { 3236 case MotionEvent.ACTION_DOWN: 3237 x.reset(2); 3238 y.reset(2); 3239 enqueueInputEvent(new KeyEvent(curTime, curTime, 3240 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3241 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3242 InputDevice.SOURCE_KEYBOARD)); 3243 break; 3244 case MotionEvent.ACTION_UP: 3245 x.reset(2); 3246 y.reset(2); 3247 enqueueInputEvent(new KeyEvent(curTime, curTime, 3248 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3249 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3250 InputDevice.SOURCE_KEYBOARD)); 3251 break; 3252 } 3253 3254 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3255 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3256 + " move=" + event.getX() 3257 + " / Y=" + y.position + " step=" 3258 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3259 + " move=" + event.getY()); 3260 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3261 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3262 3263 // Generate DPAD events based on the trackball movement. 3264 // We pick the axis that has moved the most as the direction of 3265 // the DPAD. When we generate DPAD events for one axis, then the 3266 // other axis is reset -- we don't want to perform DPAD jumps due 3267 // to slight movements in the trackball when making major movements 3268 // along the other axis. 3269 int keycode = 0; 3270 int movement = 0; 3271 float accel = 1; 3272 if (xOff > yOff) { 3273 movement = x.generate((2/event.getXPrecision())); 3274 if (movement != 0) { 3275 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3276 : KeyEvent.KEYCODE_DPAD_LEFT; 3277 accel = x.acceleration; 3278 y.reset(2); 3279 } 3280 } else if (yOff > 0) { 3281 movement = y.generate((2/event.getYPrecision())); 3282 if (movement != 0) { 3283 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3284 : KeyEvent.KEYCODE_DPAD_UP; 3285 accel = y.acceleration; 3286 x.reset(2); 3287 } 3288 } 3289 3290 if (keycode != 0) { 3291 if (movement < 0) movement = -movement; 3292 int accelMovement = (int)(movement * accel); 3293 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3294 + " accelMovement=" + accelMovement 3295 + " accel=" + accel); 3296 if (accelMovement > movement) { 3297 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3298 + keycode); 3299 movement--; 3300 int repeatCount = accelMovement - movement; 3301 enqueueInputEvent(new KeyEvent(curTime, curTime, 3302 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3303 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3304 InputDevice.SOURCE_KEYBOARD)); 3305 } 3306 while (movement > 0) { 3307 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3308 + keycode); 3309 movement--; 3310 curTime = SystemClock.uptimeMillis(); 3311 enqueueInputEvent(new KeyEvent(curTime, curTime, 3312 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3313 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3314 InputDevice.SOURCE_KEYBOARD)); 3315 enqueueInputEvent(new KeyEvent(curTime, curTime, 3316 KeyEvent.ACTION_UP, keycode, 0, metaState, 3317 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3318 InputDevice.SOURCE_KEYBOARD)); 3319 } 3320 mLastTrackballTime = curTime; 3321 } 3322 3323 // Unfortunately we can't tell whether the application consumed the keys, so 3324 // we always consider the trackball event handled. 3325 finishInputEvent(q, true); 3326 } 3327 3328 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3329 final MotionEvent event = (MotionEvent)q.mEvent; 3330 if (mInputEventConsistencyVerifier != null) { 3331 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3332 } 3333 3334 final int source = event.getSource(); 3335 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3336 3337 // If there is no view, then the event will not be handled. 3338 if (mView == null || !mAdded) { 3339 if (isJoystick) { 3340 updateJoystickDirection(event, false); 3341 } 3342 finishInputEvent(q, false); 3343 return; 3344 } 3345 3346 // Deliver the event to the view. 3347 if (mView.dispatchGenericMotionEvent(event)) { 3348 if (isJoystick) { 3349 updateJoystickDirection(event, false); 3350 } 3351 finishInputEvent(q, true); 3352 return; 3353 } 3354 3355 if (isJoystick) { 3356 // Translate the joystick event into DPAD keys and try to deliver those. 3357 updateJoystickDirection(event, true); 3358 finishInputEvent(q, true); 3359 } else { 3360 finishInputEvent(q, false); 3361 } 3362 } 3363 3364 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3365 final long time = event.getEventTime(); 3366 final int metaState = event.getMetaState(); 3367 final int deviceId = event.getDeviceId(); 3368 final int source = event.getSource(); 3369 3370 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3371 if (xDirection == 0) { 3372 xDirection = joystickAxisValueToDirection(event.getX()); 3373 } 3374 3375 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3376 if (yDirection == 0) { 3377 yDirection = joystickAxisValueToDirection(event.getY()); 3378 } 3379 3380 if (xDirection != mLastJoystickXDirection) { 3381 if (mLastJoystickXKeyCode != 0) { 3382 enqueueInputEvent(new KeyEvent(time, time, 3383 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3384 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3385 mLastJoystickXKeyCode = 0; 3386 } 3387 3388 mLastJoystickXDirection = xDirection; 3389 3390 if (xDirection != 0 && synthesizeNewKeys) { 3391 mLastJoystickXKeyCode = xDirection > 0 3392 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3393 enqueueInputEvent(new KeyEvent(time, time, 3394 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3395 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3396 } 3397 } 3398 3399 if (yDirection != mLastJoystickYDirection) { 3400 if (mLastJoystickYKeyCode != 0) { 3401 enqueueInputEvent(new KeyEvent(time, time, 3402 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3403 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3404 mLastJoystickYKeyCode = 0; 3405 } 3406 3407 mLastJoystickYDirection = yDirection; 3408 3409 if (yDirection != 0 && synthesizeNewKeys) { 3410 mLastJoystickYKeyCode = yDirection > 0 3411 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3412 enqueueInputEvent(new KeyEvent(time, time, 3413 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3414 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3415 } 3416 } 3417 } 3418 3419 private static int joystickAxisValueToDirection(float value) { 3420 if (value >= 0.5f) { 3421 return 1; 3422 } else if (value <= -0.5f) { 3423 return -1; 3424 } else { 3425 return 0; 3426 } 3427 } 3428 3429 /** 3430 * Returns true if the key is used for keyboard navigation. 3431 * @param keyEvent The key event. 3432 * @return True if the key is used for keyboard navigation. 3433 */ 3434 private static boolean isNavigationKey(KeyEvent keyEvent) { 3435 switch (keyEvent.getKeyCode()) { 3436 case KeyEvent.KEYCODE_DPAD_LEFT: 3437 case KeyEvent.KEYCODE_DPAD_RIGHT: 3438 case KeyEvent.KEYCODE_DPAD_UP: 3439 case KeyEvent.KEYCODE_DPAD_DOWN: 3440 case KeyEvent.KEYCODE_DPAD_CENTER: 3441 case KeyEvent.KEYCODE_PAGE_UP: 3442 case KeyEvent.KEYCODE_PAGE_DOWN: 3443 case KeyEvent.KEYCODE_MOVE_HOME: 3444 case KeyEvent.KEYCODE_MOVE_END: 3445 case KeyEvent.KEYCODE_TAB: 3446 case KeyEvent.KEYCODE_SPACE: 3447 case KeyEvent.KEYCODE_ENTER: 3448 return true; 3449 } 3450 return false; 3451 } 3452 3453 /** 3454 * Returns true if the key is used for typing. 3455 * @param keyEvent The key event. 3456 * @return True if the key is used for typing. 3457 */ 3458 private static boolean isTypingKey(KeyEvent keyEvent) { 3459 return keyEvent.getUnicodeChar() > 0; 3460 } 3461 3462 /** 3463 * See if the key event means we should leave touch mode (and leave touch mode if so). 3464 * @param event The key event. 3465 * @return Whether this key event should be consumed (meaning the act of 3466 * leaving touch mode alone is considered the event). 3467 */ 3468 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3469 // Only relevant in touch mode. 3470 if (!mAttachInfo.mInTouchMode) { 3471 return false; 3472 } 3473 3474 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3475 final int action = event.getAction(); 3476 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3477 return false; 3478 } 3479 3480 // Don't leave touch mode if the IME told us not to. 3481 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3482 return false; 3483 } 3484 3485 // If the key can be used for keyboard navigation then leave touch mode 3486 // and select a focused view if needed (in ensureTouchMode). 3487 // When a new focused view is selected, we consume the navigation key because 3488 // navigation doesn't make much sense unless a view already has focus so 3489 // the key's purpose is to set focus. 3490 if (isNavigationKey(event)) { 3491 return ensureTouchMode(false); 3492 } 3493 3494 // If the key can be used for typing then leave touch mode 3495 // and select a focused view if needed (in ensureTouchMode). 3496 // Always allow the view to process the typing key. 3497 if (isTypingKey(event)) { 3498 ensureTouchMode(false); 3499 return false; 3500 } 3501 3502 return false; 3503 } 3504 3505 private void deliverKeyEvent(QueuedInputEvent q) { 3506 final KeyEvent event = (KeyEvent)q.mEvent; 3507 if (mInputEventConsistencyVerifier != null) { 3508 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3509 } 3510 3511 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3512 // If there is no view, then the event will not be handled. 3513 if (mView == null || !mAdded) { 3514 finishInputEvent(q, false); 3515 return; 3516 } 3517 3518 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3519 3520 // Perform predispatching before the IME. 3521 if (mView.dispatchKeyEventPreIme(event)) { 3522 finishInputEvent(q, true); 3523 return; 3524 } 3525 3526 // Dispatch to the IME before propagating down the view hierarchy. 3527 // The IME will eventually call back into handleImeFinishedEvent. 3528 if (mLastWasImTarget) { 3529 InputMethodManager imm = InputMethodManager.peekInstance(); 3530 if (imm != null) { 3531 final int seq = event.getSequenceNumber(); 3532 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3533 + seq + " event=" + event); 3534 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3535 return; 3536 } 3537 } 3538 } 3539 3540 // Not dispatching to IME, continue with post IME actions. 3541 deliverKeyEventPostIme(q); 3542 } 3543 3544 void handleImeFinishedEvent(int seq, boolean handled) { 3545 final QueuedInputEvent q = mCurrentInputEvent; 3546 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3547 final KeyEvent event = (KeyEvent)q.mEvent; 3548 if (DEBUG_IMF) { 3549 Log.v(TAG, "IME finished event: seq=" + seq 3550 + " handled=" + handled + " event=" + event); 3551 } 3552 if (handled) { 3553 finishInputEvent(q, true); 3554 } else { 3555 deliverKeyEventPostIme(q); 3556 } 3557 } else { 3558 if (DEBUG_IMF) { 3559 Log.v(TAG, "IME finished event: seq=" + seq 3560 + " handled=" + handled + ", event not found!"); 3561 } 3562 } 3563 } 3564 3565 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3566 final KeyEvent event = (KeyEvent)q.mEvent; 3567 3568 // If the view went away, then the event will not be handled. 3569 if (mView == null || !mAdded) { 3570 finishInputEvent(q, false); 3571 return; 3572 } 3573 3574 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3575 if (checkForLeavingTouchModeAndConsume(event)) { 3576 finishInputEvent(q, true); 3577 return; 3578 } 3579 3580 // Make sure the fallback event policy sees all keys that will be delivered to the 3581 // view hierarchy. 3582 mFallbackEventHandler.preDispatchKeyEvent(event); 3583 3584 // Deliver the key to the view hierarchy. 3585 if (mView.dispatchKeyEvent(event)) { 3586 finishInputEvent(q, true); 3587 return; 3588 } 3589 3590 // If the Control modifier is held, try to interpret the key as a shortcut. 3591 if (event.getAction() == KeyEvent.ACTION_DOWN 3592 && event.isCtrlPressed() 3593 && event.getRepeatCount() == 0 3594 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3595 if (mView.dispatchKeyShortcutEvent(event)) { 3596 finishInputEvent(q, true); 3597 return; 3598 } 3599 } 3600 3601 // Apply the fallback event policy. 3602 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3603 finishInputEvent(q, true); 3604 return; 3605 } 3606 3607 // Handle automatic focus changes. 3608 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3609 int direction = 0; 3610 switch (event.getKeyCode()) { 3611 case KeyEvent.KEYCODE_DPAD_LEFT: 3612 if (event.hasNoModifiers()) { 3613 direction = View.FOCUS_LEFT; 3614 } 3615 break; 3616 case KeyEvent.KEYCODE_DPAD_RIGHT: 3617 if (event.hasNoModifiers()) { 3618 direction = View.FOCUS_RIGHT; 3619 } 3620 break; 3621 case KeyEvent.KEYCODE_DPAD_UP: 3622 if (event.hasNoModifiers()) { 3623 direction = View.FOCUS_UP; 3624 } 3625 break; 3626 case KeyEvent.KEYCODE_DPAD_DOWN: 3627 if (event.hasNoModifiers()) { 3628 direction = View.FOCUS_DOWN; 3629 } 3630 break; 3631 case KeyEvent.KEYCODE_TAB: 3632 if (event.hasNoModifiers()) { 3633 direction = View.FOCUS_FORWARD; 3634 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3635 direction = View.FOCUS_BACKWARD; 3636 } 3637 break; 3638 } 3639 if (direction != 0) { 3640 View focused = mView.findFocus(); 3641 if (focused != null) { 3642 View v = focused.focusSearch(direction); 3643 if (v != null && v != focused) { 3644 // do the math the get the interesting rect 3645 // of previous focused into the coord system of 3646 // newly focused view 3647 focused.getFocusedRect(mTempRect); 3648 if (mView instanceof ViewGroup) { 3649 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3650 focused, mTempRect); 3651 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3652 v, mTempRect); 3653 } 3654 if (v.requestFocus(direction, mTempRect)) { 3655 playSoundEffect(SoundEffectConstants 3656 .getContantForFocusDirection(direction)); 3657 finishInputEvent(q, true); 3658 return; 3659 } 3660 } 3661 3662 // Give the focused view a last chance to handle the dpad key. 3663 if (mView.dispatchUnhandledMove(focused, direction)) { 3664 finishInputEvent(q, true); 3665 return; 3666 } 3667 } 3668 } 3669 } 3670 3671 // Key was unhandled. 3672 finishInputEvent(q, false); 3673 } 3674 3675 /* drag/drop */ 3676 void setLocalDragState(Object obj) { 3677 mLocalDragState = obj; 3678 } 3679 3680 private void handleDragEvent(DragEvent event) { 3681 // From the root, only drag start/end/location are dispatched. entered/exited 3682 // are determined and dispatched by the viewgroup hierarchy, who then report 3683 // that back here for ultimate reporting back to the framework. 3684 if (mView != null && mAdded) { 3685 final int what = event.mAction; 3686 3687 if (what == DragEvent.ACTION_DRAG_EXITED) { 3688 // A direct EXITED event means that the window manager knows we've just crossed 3689 // a window boundary, so the current drag target within this one must have 3690 // just been exited. Send it the usual notifications and then we're done 3691 // for now. 3692 mView.dispatchDragEvent(event); 3693 } else { 3694 // Cache the drag description when the operation starts, then fill it in 3695 // on subsequent calls as a convenience 3696 if (what == DragEvent.ACTION_DRAG_STARTED) { 3697 mCurrentDragView = null; // Start the current-recipient tracking 3698 mDragDescription = event.mClipDescription; 3699 } else { 3700 event.mClipDescription = mDragDescription; 3701 } 3702 3703 // For events with a [screen] location, translate into window coordinates 3704 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3705 mDragPoint.set(event.mX, event.mY); 3706 if (mTranslator != null) { 3707 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3708 } 3709 3710 if (mCurScrollY != 0) { 3711 mDragPoint.offset(0, mCurScrollY); 3712 } 3713 3714 event.mX = mDragPoint.x; 3715 event.mY = mDragPoint.y; 3716 } 3717 3718 // Remember who the current drag target is pre-dispatch 3719 final View prevDragView = mCurrentDragView; 3720 3721 // Now dispatch the drag/drop event 3722 boolean result = mView.dispatchDragEvent(event); 3723 3724 // If we changed apparent drag target, tell the OS about it 3725 if (prevDragView != mCurrentDragView) { 3726 try { 3727 if (prevDragView != null) { 3728 sWindowSession.dragRecipientExited(mWindow); 3729 } 3730 if (mCurrentDragView != null) { 3731 sWindowSession.dragRecipientEntered(mWindow); 3732 } 3733 } catch (RemoteException e) { 3734 Slog.e(TAG, "Unable to note drag target change"); 3735 } 3736 } 3737 3738 // Report the drop result when we're done 3739 if (what == DragEvent.ACTION_DROP) { 3740 mDragDescription = null; 3741 try { 3742 Log.i(TAG, "Reporting drop result: " + result); 3743 sWindowSession.reportDropResult(mWindow, result); 3744 } catch (RemoteException e) { 3745 Log.e(TAG, "Unable to report drop result"); 3746 } 3747 } 3748 3749 // When the drag operation ends, release any local state object 3750 // that may have been in use 3751 if (what == DragEvent.ACTION_DRAG_ENDED) { 3752 setLocalDragState(null); 3753 } 3754 } 3755 } 3756 event.recycle(); 3757 } 3758 3759 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3760 if (mSeq != args.seq) { 3761 // The sequence has changed, so we need to update our value and make 3762 // sure to do a traversal afterward so the window manager is given our 3763 // most recent data. 3764 mSeq = args.seq; 3765 mAttachInfo.mForceReportNewAttributes = true; 3766 scheduleTraversals(); 3767 } 3768 if (mView == null) return; 3769 if (args.localChanges != 0) { 3770 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3771 } 3772 if (mAttachInfo != null) { 3773 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3774 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3775 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3776 mView.dispatchSystemUiVisibilityChanged(visibility); 3777 } 3778 } 3779 } 3780 3781 public void handleDispatchDoneAnimating() { 3782 if (mWindowsAnimating) { 3783 mWindowsAnimating = false; 3784 if (!mDirty.isEmpty() || mIsAnimating) { 3785 scheduleTraversals(); 3786 } 3787 } 3788 } 3789 3790 public void getLastTouchPoint(Point outLocation) { 3791 outLocation.x = (int) mLastTouchPoint.x; 3792 outLocation.y = (int) mLastTouchPoint.y; 3793 } 3794 3795 public void setDragFocus(View newDragTarget) { 3796 if (mCurrentDragView != newDragTarget) { 3797 mCurrentDragView = newDragTarget; 3798 } 3799 } 3800 3801 private AudioManager getAudioManager() { 3802 if (mView == null) { 3803 throw new IllegalStateException("getAudioManager called when there is no mView"); 3804 } 3805 if (mAudioManager == null) { 3806 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3807 } 3808 return mAudioManager; 3809 } 3810 3811 public AccessibilityInteractionController getAccessibilityInteractionController() { 3812 if (mView == null) { 3813 throw new IllegalStateException("getAccessibilityInteractionController" 3814 + " called when there is no mView"); 3815 } 3816 if (mAccessibilityInteractionController == null) { 3817 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3818 } 3819 return mAccessibilityInteractionController; 3820 } 3821 3822 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3823 boolean insetsPending) throws RemoteException { 3824 3825 float appScale = mAttachInfo.mApplicationScale; 3826 boolean restore = false; 3827 if (params != null && mTranslator != null) { 3828 restore = true; 3829 params.backup(); 3830 mTranslator.translateWindowLayout(params); 3831 } 3832 if (params != null) { 3833 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3834 } 3835 mPendingConfiguration.seq = 0; 3836 //Log.d(TAG, ">>>>>> CALLING relayout"); 3837 if (params != null && mOrigWindowType != params.type) { 3838 // For compatibility with old apps, don't crash here. 3839 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3840 Slog.w(TAG, "Window type can not be changed after " 3841 + "the window is added; ignoring change of " + mView); 3842 params.type = mOrigWindowType; 3843 } 3844 } 3845 int relayoutResult = sWindowSession.relayout( 3846 mWindow, mSeq, params, 3847 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3848 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3849 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3850 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3851 mPendingConfiguration, mSurface); 3852 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3853 if (restore) { 3854 params.restore(); 3855 } 3856 3857 if (mTranslator != null) { 3858 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3859 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3860 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3861 } 3862 return relayoutResult; 3863 } 3864 3865 /** 3866 * {@inheritDoc} 3867 */ 3868 public void playSoundEffect(int effectId) { 3869 checkThread(); 3870 3871 try { 3872 final AudioManager audioManager = getAudioManager(); 3873 3874 switch (effectId) { 3875 case SoundEffectConstants.CLICK: 3876 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3877 return; 3878 case SoundEffectConstants.NAVIGATION_DOWN: 3879 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3880 return; 3881 case SoundEffectConstants.NAVIGATION_LEFT: 3882 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3883 return; 3884 case SoundEffectConstants.NAVIGATION_RIGHT: 3885 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3886 return; 3887 case SoundEffectConstants.NAVIGATION_UP: 3888 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3889 return; 3890 default: 3891 throw new IllegalArgumentException("unknown effect id " + effectId + 3892 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3893 } 3894 } catch (IllegalStateException e) { 3895 // Exception thrown by getAudioManager() when mView is null 3896 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3897 e.printStackTrace(); 3898 } 3899 } 3900 3901 /** 3902 * {@inheritDoc} 3903 */ 3904 public boolean performHapticFeedback(int effectId, boolean always) { 3905 try { 3906 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3907 } catch (RemoteException e) { 3908 return false; 3909 } 3910 } 3911 3912 /** 3913 * {@inheritDoc} 3914 */ 3915 public View focusSearch(View focused, int direction) { 3916 checkThread(); 3917 if (!(mView instanceof ViewGroup)) { 3918 return null; 3919 } 3920 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3921 } 3922 3923 public void debug() { 3924 mView.debug(); 3925 } 3926 3927 public void dumpGfxInfo(int[] info) { 3928 info[0] = info[1] = 0; 3929 if (mView != null) { 3930 getGfxInfo(mView, info); 3931 } 3932 } 3933 3934 private static void getGfxInfo(View view, int[] info) { 3935 DisplayList displayList = view.mDisplayList; 3936 info[0]++; 3937 if (displayList != null) { 3938 info[1] += displayList.getSize(); 3939 } 3940 3941 if (view instanceof ViewGroup) { 3942 ViewGroup group = (ViewGroup) view; 3943 3944 int count = group.getChildCount(); 3945 for (int i = 0; i < count; i++) { 3946 getGfxInfo(group.getChildAt(i), info); 3947 } 3948 } 3949 } 3950 3951 public void die(boolean immediate) { 3952 if (immediate) { 3953 doDie(); 3954 } else { 3955 if (!mIsDrawing) { 3956 destroyHardwareRenderer(); 3957 } else { 3958 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3959 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3960 } 3961 mHandler.sendEmptyMessage(MSG_DIE); 3962 } 3963 } 3964 3965 void doDie() { 3966 checkThread(); 3967 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3968 synchronized (this) { 3969 if (mAdded) { 3970 dispatchDetachedFromWindow(); 3971 } 3972 3973 if (mAdded && !mFirst) { 3974 destroyHardwareRenderer(); 3975 3976 if (mView != null) { 3977 int viewVisibility = mView.getVisibility(); 3978 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3979 if (mWindowAttributesChanged || viewVisibilityChanged) { 3980 // If layout params have been changed, first give them 3981 // to the window manager to make sure it has the correct 3982 // animation info. 3983 try { 3984 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3985 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3986 sWindowSession.finishDrawing(mWindow); 3987 } 3988 } catch (RemoteException e) { 3989 } 3990 } 3991 3992 mSurface.release(); 3993 } 3994 } 3995 3996 mAdded = false; 3997 } 3998 } 3999 4000 public void requestUpdateConfiguration(Configuration config) { 4001 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4002 mHandler.sendMessage(msg); 4003 } 4004 4005 public void loadSystemProperties() { 4006 boolean layout = SystemProperties.getBoolean( 4007 View.DEBUG_LAYOUT_PROPERTY, false); 4008 if (layout != mAttachInfo.mDebugLayout) { 4009 mAttachInfo.mDebugLayout = layout; 4010 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4011 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4012 } 4013 } 4014 } 4015 4016 private void destroyHardwareRenderer() { 4017 AttachInfo attachInfo = mAttachInfo; 4018 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4019 4020 if (hardwareRenderer != null) { 4021 if (mView != null) { 4022 hardwareRenderer.destroyHardwareResources(mView); 4023 } 4024 hardwareRenderer.destroy(true); 4025 hardwareRenderer.setRequested(false); 4026 4027 attachInfo.mHardwareRenderer = null; 4028 attachInfo.mHardwareAccelerated = false; 4029 } 4030 } 4031 4032 void dispatchImeFinishedEvent(int seq, boolean handled) { 4033 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4034 msg.arg1 = seq; 4035 msg.arg2 = handled ? 1 : 0; 4036 msg.setAsynchronous(true); 4037 mHandler.sendMessage(msg); 4038 } 4039 4040 public void dispatchFinishInputConnection(InputConnection connection) { 4041 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4042 mHandler.sendMessage(msg); 4043 } 4044 4045 public void dispatchResized(int w, int h, Rect contentInsets, 4046 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4047 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4048 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4049 + " visibleInsets=" + visibleInsets.toShortString() 4050 + " reportDraw=" + reportDraw); 4051 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4052 if (mTranslator != null) { 4053 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4054 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4055 w *= mTranslator.applicationInvertedScale; 4056 h *= mTranslator.applicationInvertedScale; 4057 } 4058 msg.arg1 = w; 4059 msg.arg2 = h; 4060 ResizedInfo ri = new ResizedInfo(); 4061 ri.contentInsets = new Rect(contentInsets); 4062 ri.visibleInsets = new Rect(visibleInsets); 4063 ri.newConfig = newConfig; 4064 msg.obj = ri; 4065 mHandler.sendMessage(msg); 4066 } 4067 4068 /** 4069 * Represents a pending input event that is waiting in a queue. 4070 * 4071 * Input events are processed in serial order by the timestamp specified by 4072 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4073 * one input event to the application at a time and waits for the application 4074 * to finish handling it before delivering the next one. 4075 * 4076 * However, because the application or IME can synthesize and inject multiple 4077 * key events at a time without going through the input dispatcher, we end up 4078 * needing a queue on the application's side. 4079 */ 4080 private static final class QueuedInputEvent { 4081 public static final int FLAG_DELIVER_POST_IME = 1; 4082 4083 public QueuedInputEvent mNext; 4084 4085 public InputEvent mEvent; 4086 public InputEventReceiver mReceiver; 4087 public int mFlags; 4088 } 4089 4090 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4091 InputEventReceiver receiver, int flags) { 4092 QueuedInputEvent q = mQueuedInputEventPool; 4093 if (q != null) { 4094 mQueuedInputEventPoolSize -= 1; 4095 mQueuedInputEventPool = q.mNext; 4096 q.mNext = null; 4097 } else { 4098 q = new QueuedInputEvent(); 4099 } 4100 4101 q.mEvent = event; 4102 q.mReceiver = receiver; 4103 q.mFlags = flags; 4104 return q; 4105 } 4106 4107 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4108 q.mEvent = null; 4109 q.mReceiver = null; 4110 4111 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4112 mQueuedInputEventPoolSize += 1; 4113 q.mNext = mQueuedInputEventPool; 4114 mQueuedInputEventPool = q; 4115 } 4116 } 4117 4118 void enqueueInputEvent(InputEvent event) { 4119 enqueueInputEvent(event, null, 0, false); 4120 } 4121 4122 void enqueueInputEvent(InputEvent event, 4123 InputEventReceiver receiver, int flags, boolean processImmediately) { 4124 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4125 4126 // Always enqueue the input event in order, regardless of its time stamp. 4127 // We do this because the application or the IME may inject key events 4128 // in response to touch events and we want to ensure that the injected keys 4129 // are processed in the order they were received and we cannot trust that 4130 // the time stamp of injected events are monotonic. 4131 QueuedInputEvent last = mFirstPendingInputEvent; 4132 if (last == null) { 4133 mFirstPendingInputEvent = q; 4134 } else { 4135 while (last.mNext != null) { 4136 last = last.mNext; 4137 } 4138 last.mNext = q; 4139 } 4140 4141 if (processImmediately) { 4142 doProcessInputEvents(); 4143 } else { 4144 scheduleProcessInputEvents(); 4145 } 4146 } 4147 4148 private void scheduleProcessInputEvents() { 4149 if (!mProcessInputEventsScheduled) { 4150 mProcessInputEventsScheduled = true; 4151 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4152 msg.setAsynchronous(true); 4153 mHandler.sendMessage(msg); 4154 } 4155 } 4156 4157 void doProcessInputEvents() { 4158 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4159 QueuedInputEvent q = mFirstPendingInputEvent; 4160 mFirstPendingInputEvent = q.mNext; 4161 q.mNext = null; 4162 mCurrentInputEvent = q; 4163 deliverInputEvent(q); 4164 } 4165 4166 // We are done processing all input events that we can process right now 4167 // so we can clear the pending flag immediately. 4168 if (mProcessInputEventsScheduled) { 4169 mProcessInputEventsScheduled = false; 4170 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4171 } 4172 } 4173 4174 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4175 if (q != mCurrentInputEvent) { 4176 throw new IllegalStateException("finished input event out of order"); 4177 } 4178 4179 if (q.mReceiver != null) { 4180 q.mReceiver.finishInputEvent(q.mEvent, handled); 4181 } else { 4182 q.mEvent.recycleIfNeededAfterDispatch(); 4183 } 4184 4185 recycleQueuedInputEvent(q); 4186 4187 mCurrentInputEvent = null; 4188 if (mFirstPendingInputEvent != null) { 4189 scheduleProcessInputEvents(); 4190 } 4191 } 4192 4193 void scheduleConsumeBatchedInput() { 4194 if (!mConsumeBatchedInputScheduled) { 4195 mConsumeBatchedInputScheduled = true; 4196 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4197 mConsumedBatchedInputRunnable, null); 4198 } 4199 } 4200 4201 void unscheduleConsumeBatchedInput() { 4202 if (mConsumeBatchedInputScheduled) { 4203 mConsumeBatchedInputScheduled = false; 4204 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4205 mConsumedBatchedInputRunnable, null); 4206 } 4207 } 4208 4209 void doConsumeBatchedInput(long frameTimeNanos) { 4210 if (mConsumeBatchedInputScheduled) { 4211 mConsumeBatchedInputScheduled = false; 4212 if (mInputEventReceiver != null) { 4213 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4214 } 4215 doProcessInputEvents(); 4216 } 4217 } 4218 4219 final class TraversalRunnable implements Runnable { 4220 @Override 4221 public void run() { 4222 doTraversal(); 4223 } 4224 } 4225 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4226 4227 final class WindowInputEventReceiver extends InputEventReceiver { 4228 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4229 super(inputChannel, looper); 4230 } 4231 4232 @Override 4233 public void onInputEvent(InputEvent event) { 4234 enqueueInputEvent(event, this, 0, true); 4235 } 4236 4237 @Override 4238 public void onBatchedInputEventPending() { 4239 scheduleConsumeBatchedInput(); 4240 } 4241 4242 @Override 4243 public void dispose() { 4244 unscheduleConsumeBatchedInput(); 4245 super.dispose(); 4246 } 4247 } 4248 WindowInputEventReceiver mInputEventReceiver; 4249 4250 final class ConsumeBatchedInputRunnable implements Runnable { 4251 @Override 4252 public void run() { 4253 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4254 } 4255 } 4256 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4257 new ConsumeBatchedInputRunnable(); 4258 boolean mConsumeBatchedInputScheduled; 4259 4260 final class InvalidateOnAnimationRunnable implements Runnable { 4261 private boolean mPosted; 4262 private ArrayList<View> mViews = new ArrayList<View>(); 4263 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4264 new ArrayList<AttachInfo.InvalidateInfo>(); 4265 private View[] mTempViews; 4266 private AttachInfo.InvalidateInfo[] mTempViewRects; 4267 4268 public void addView(View view) { 4269 synchronized (this) { 4270 mViews.add(view); 4271 postIfNeededLocked(); 4272 } 4273 } 4274 4275 public void addViewRect(AttachInfo.InvalidateInfo info) { 4276 synchronized (this) { 4277 mViewRects.add(info); 4278 postIfNeededLocked(); 4279 } 4280 } 4281 4282 public void removeView(View view) { 4283 synchronized (this) { 4284 mViews.remove(view); 4285 4286 for (int i = mViewRects.size(); i-- > 0; ) { 4287 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4288 if (info.target == view) { 4289 mViewRects.remove(i); 4290 info.release(); 4291 } 4292 } 4293 4294 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4295 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4296 mPosted = false; 4297 } 4298 } 4299 } 4300 4301 @Override 4302 public void run() { 4303 final int viewCount; 4304 final int viewRectCount; 4305 synchronized (this) { 4306 mPosted = false; 4307 4308 viewCount = mViews.size(); 4309 if (viewCount != 0) { 4310 mTempViews = mViews.toArray(mTempViews != null 4311 ? mTempViews : new View[viewCount]); 4312 mViews.clear(); 4313 } 4314 4315 viewRectCount = mViewRects.size(); 4316 if (viewRectCount != 0) { 4317 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4318 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4319 mViewRects.clear(); 4320 } 4321 } 4322 4323 for (int i = 0; i < viewCount; i++) { 4324 mTempViews[i].invalidate(); 4325 mTempViews[i] = null; 4326 } 4327 4328 for (int i = 0; i < viewRectCount; i++) { 4329 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4330 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4331 info.release(); 4332 } 4333 } 4334 4335 private void postIfNeededLocked() { 4336 if (!mPosted) { 4337 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4338 mPosted = true; 4339 } 4340 } 4341 } 4342 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4343 new InvalidateOnAnimationRunnable(); 4344 4345 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4346 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4347 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4348 } 4349 4350 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4351 long delayMilliseconds) { 4352 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4353 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4354 } 4355 4356 public void dispatchInvalidateOnAnimation(View view) { 4357 mInvalidateOnAnimationRunnable.addView(view); 4358 } 4359 4360 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4361 mInvalidateOnAnimationRunnable.addViewRect(info); 4362 } 4363 4364 public void enqueueDisplayList(DisplayList displayList) { 4365 mDisplayLists.add(displayList); 4366 4367 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4368 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4369 mHandler.sendMessage(msg); 4370 } 4371 4372 public void dequeueDisplayList(DisplayList displayList) { 4373 if (mDisplayLists.remove(displayList)) { 4374 displayList.invalidate(); 4375 if (mDisplayLists.size() == 0) { 4376 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4377 } 4378 } 4379 } 4380 4381 public void cancelInvalidate(View view) { 4382 mHandler.removeMessages(MSG_INVALIDATE, view); 4383 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4384 // them to the pool 4385 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4386 mInvalidateOnAnimationRunnable.removeView(view); 4387 } 4388 4389 public void dispatchKey(KeyEvent event) { 4390 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4391 msg.setAsynchronous(true); 4392 mHandler.sendMessage(msg); 4393 } 4394 4395 public void dispatchKeyFromIme(KeyEvent event) { 4396 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4397 msg.setAsynchronous(true); 4398 mHandler.sendMessage(msg); 4399 } 4400 4401 public void dispatchUnhandledKey(KeyEvent event) { 4402 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4403 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4404 final int keyCode = event.getKeyCode(); 4405 final int metaState = event.getMetaState(); 4406 4407 // Check for fallback actions specified by the key character map. 4408 KeyCharacterMap.FallbackAction fallbackAction = 4409 kcm.getFallbackAction(keyCode, metaState); 4410 if (fallbackAction != null) { 4411 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4412 KeyEvent fallbackEvent = KeyEvent.obtain( 4413 event.getDownTime(), event.getEventTime(), 4414 event.getAction(), fallbackAction.keyCode, 4415 event.getRepeatCount(), fallbackAction.metaState, 4416 event.getDeviceId(), event.getScanCode(), 4417 flags, event.getSource(), null); 4418 fallbackAction.recycle(); 4419 4420 dispatchKey(fallbackEvent); 4421 } 4422 } 4423 } 4424 4425 public void dispatchAppVisibility(boolean visible) { 4426 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4427 msg.arg1 = visible ? 1 : 0; 4428 mHandler.sendMessage(msg); 4429 } 4430 4431 public void dispatchScreenStateChange(boolean on) { 4432 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4433 msg.arg1 = on ? 1 : 0; 4434 mHandler.sendMessage(msg); 4435 } 4436 4437 public void dispatchGetNewSurface() { 4438 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4439 mHandler.sendMessage(msg); 4440 } 4441 4442 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4443 Message msg = Message.obtain(); 4444 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4445 msg.arg1 = hasFocus ? 1 : 0; 4446 msg.arg2 = inTouchMode ? 1 : 0; 4447 mHandler.sendMessage(msg); 4448 } 4449 4450 public void dispatchCloseSystemDialogs(String reason) { 4451 Message msg = Message.obtain(); 4452 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4453 msg.obj = reason; 4454 mHandler.sendMessage(msg); 4455 } 4456 4457 public void dispatchDragEvent(DragEvent event) { 4458 final int what; 4459 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4460 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4461 mHandler.removeMessages(what); 4462 } else { 4463 what = MSG_DISPATCH_DRAG_EVENT; 4464 } 4465 Message msg = mHandler.obtainMessage(what, event); 4466 mHandler.sendMessage(msg); 4467 } 4468 4469 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4470 int localValue, int localChanges) { 4471 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4472 args.seq = seq; 4473 args.globalVisibility = globalVisibility; 4474 args.localValue = localValue; 4475 args.localChanges = localChanges; 4476 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4477 } 4478 4479 public void dispatchDoneAnimating() { 4480 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4481 } 4482 4483 public void dispatchCheckFocus() { 4484 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4485 // This will result in a call to checkFocus() below. 4486 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4487 } 4488 } 4489 4490 /** 4491 * Post a callback to send a 4492 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4493 * This event is send at most once every 4494 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4495 */ 4496 private void postSendWindowContentChangedCallback(View source) { 4497 if (mSendWindowContentChangedAccessibilityEvent == null) { 4498 mSendWindowContentChangedAccessibilityEvent = 4499 new SendWindowContentChangedAccessibilityEvent(); 4500 } 4501 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4502 if (oldSource == null) { 4503 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4504 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4505 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4506 } else { 4507 mSendWindowContentChangedAccessibilityEvent.mSource = 4508 getCommonPredecessor(oldSource, source); 4509 } 4510 } 4511 4512 /** 4513 * Remove a posted callback to send a 4514 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4515 */ 4516 private void removeSendWindowContentChangedCallback() { 4517 if (mSendWindowContentChangedAccessibilityEvent != null) { 4518 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4519 } 4520 } 4521 4522 public boolean showContextMenuForChild(View originalView) { 4523 return false; 4524 } 4525 4526 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4527 return null; 4528 } 4529 4530 public void createContextMenu(ContextMenu menu) { 4531 } 4532 4533 public void childDrawableStateChanged(View child) { 4534 } 4535 4536 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4537 if (mView == null) { 4538 return false; 4539 } 4540 // Watch for accessibility focus change events from virtual nodes 4541 // to keep track of accessibility focus being on a virtual node. 4542 final int eventType = event.getEventType(); 4543 switch (eventType) { 4544 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4545 final long sourceId = event.getSourceNodeId(); 4546 // If the event is not from a virtual node we are not interested. 4547 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4548 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4549 break; 4550 } 4551 final int realViewId = AccessibilityNodeInfo.getAccessibilityViewId(sourceId); 4552 View focusHost = mView.findViewByAccessibilityId(realViewId); 4553 setAccessibilityFocusedHost(focusHost); 4554 } break; 4555 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4556 final long sourceId = event.getSourceNodeId(); 4557 // If the event is not from a virtual node we are not interested. 4558 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4559 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4560 break; 4561 } 4562 setAccessibilityFocusedHost(null); 4563 } break; 4564 } 4565 mAccessibilityManager.sendAccessibilityEvent(event); 4566 return true; 4567 } 4568 4569 @Override 4570 public void childAccessibilityStateChanged(View child) { 4571 postSendWindowContentChangedCallback(child); 4572 } 4573 4574 private View getCommonPredecessor(View first, View second) { 4575 if (mAttachInfo != null) { 4576 if (mTempHashSet == null) { 4577 mTempHashSet = new HashSet<View>(); 4578 } 4579 HashSet<View> seen = mTempHashSet; 4580 seen.clear(); 4581 View firstCurrent = first; 4582 while (firstCurrent != null) { 4583 seen.add(firstCurrent); 4584 ViewParent firstCurrentParent = firstCurrent.mParent; 4585 if (firstCurrentParent instanceof View) { 4586 firstCurrent = (View) firstCurrentParent; 4587 } else { 4588 firstCurrent = null; 4589 } 4590 } 4591 View secondCurrent = second; 4592 while (secondCurrent != null) { 4593 if (seen.contains(secondCurrent)) { 4594 seen.clear(); 4595 return secondCurrent; 4596 } 4597 ViewParent secondCurrentParent = secondCurrent.mParent; 4598 if (secondCurrentParent instanceof View) { 4599 secondCurrent = (View) secondCurrentParent; 4600 } else { 4601 secondCurrent = null; 4602 } 4603 } 4604 seen.clear(); 4605 } 4606 return null; 4607 } 4608 4609 void checkThread() { 4610 if (mThread != Thread.currentThread()) { 4611 throw new CalledFromWrongThreadException( 4612 "Only the original thread that created a view hierarchy can touch its views."); 4613 } 4614 } 4615 4616 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4617 // ViewAncestor never intercepts touch event, so this can be a no-op 4618 } 4619 4620 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4621 boolean immediate) { 4622 return scrollToRectOrFocus(rectangle, immediate); 4623 } 4624 4625 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4626 // Do nothing. 4627 } 4628 4629 class TakenSurfaceHolder extends BaseSurfaceHolder { 4630 @Override 4631 public boolean onAllowLockCanvas() { 4632 return mDrawingAllowed; 4633 } 4634 4635 @Override 4636 public void onRelayoutContainer() { 4637 // Not currently interesting -- from changing between fixed and layout size. 4638 } 4639 4640 public void setFormat(int format) { 4641 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4642 } 4643 4644 public void setType(int type) { 4645 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4646 } 4647 4648 @Override 4649 public void onUpdateSurface() { 4650 // We take care of format and type changes on our own. 4651 throw new IllegalStateException("Shouldn't be here"); 4652 } 4653 4654 public boolean isCreating() { 4655 return mIsCreating; 4656 } 4657 4658 @Override 4659 public void setFixedSize(int width, int height) { 4660 throw new UnsupportedOperationException( 4661 "Currently only support sizing from layout"); 4662 } 4663 4664 public void setKeepScreenOn(boolean screenOn) { 4665 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4666 } 4667 } 4668 4669 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4670 private WeakReference<ViewRootImpl> mViewAncestor; 4671 4672 public InputMethodCallback(ViewRootImpl viewAncestor) { 4673 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4674 } 4675 4676 @Override 4677 public void finishedEvent(int seq, boolean handled) { 4678 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4679 if (viewAncestor != null) { 4680 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4681 } 4682 } 4683 } 4684 4685 static class W extends IWindow.Stub { 4686 private final WeakReference<ViewRootImpl> mViewAncestor; 4687 4688 W(ViewRootImpl viewAncestor) { 4689 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4690 } 4691 4692 public void resized(int w, int h, Rect contentInsets, 4693 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4694 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4695 if (viewAncestor != null) { 4696 viewAncestor.dispatchResized(w, h, contentInsets, 4697 visibleInsets, reportDraw, newConfig); 4698 } 4699 } 4700 4701 public void dispatchAppVisibility(boolean visible) { 4702 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4703 if (viewAncestor != null) { 4704 viewAncestor.dispatchAppVisibility(visible); 4705 } 4706 } 4707 4708 public void dispatchScreenState(boolean on) { 4709 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4710 if (viewAncestor != null) { 4711 viewAncestor.dispatchScreenStateChange(on); 4712 } 4713 } 4714 4715 public void dispatchGetNewSurface() { 4716 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4717 if (viewAncestor != null) { 4718 viewAncestor.dispatchGetNewSurface(); 4719 } 4720 } 4721 4722 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4723 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4724 if (viewAncestor != null) { 4725 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4726 } 4727 } 4728 4729 private static int checkCallingPermission(String permission) { 4730 try { 4731 return ActivityManagerNative.getDefault().checkPermission( 4732 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4733 } catch (RemoteException e) { 4734 return PackageManager.PERMISSION_DENIED; 4735 } 4736 } 4737 4738 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4739 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4740 if (viewAncestor != null) { 4741 final View view = viewAncestor.mView; 4742 if (view != null) { 4743 if (checkCallingPermission(Manifest.permission.DUMP) != 4744 PackageManager.PERMISSION_GRANTED) { 4745 throw new SecurityException("Insufficient permissions to invoke" 4746 + " executeCommand() from pid=" + Binder.getCallingPid() 4747 + ", uid=" + Binder.getCallingUid()); 4748 } 4749 4750 OutputStream clientStream = null; 4751 try { 4752 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4753 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4754 } catch (IOException e) { 4755 e.printStackTrace(); 4756 } finally { 4757 if (clientStream != null) { 4758 try { 4759 clientStream.close(); 4760 } catch (IOException e) { 4761 e.printStackTrace(); 4762 } 4763 } 4764 } 4765 } 4766 } 4767 } 4768 4769 public void closeSystemDialogs(String reason) { 4770 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4771 if (viewAncestor != null) { 4772 viewAncestor.dispatchCloseSystemDialogs(reason); 4773 } 4774 } 4775 4776 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4777 boolean sync) { 4778 if (sync) { 4779 try { 4780 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4781 } catch (RemoteException e) { 4782 } 4783 } 4784 } 4785 4786 public void dispatchWallpaperCommand(String action, int x, int y, 4787 int z, Bundle extras, boolean sync) { 4788 if (sync) { 4789 try { 4790 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4791 } catch (RemoteException e) { 4792 } 4793 } 4794 } 4795 4796 /* Drag/drop */ 4797 public void dispatchDragEvent(DragEvent event) { 4798 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4799 if (viewAncestor != null) { 4800 viewAncestor.dispatchDragEvent(event); 4801 } 4802 } 4803 4804 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4805 int localValue, int localChanges) { 4806 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4807 if (viewAncestor != null) { 4808 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4809 localValue, localChanges); 4810 } 4811 } 4812 4813 public void doneAnimating() { 4814 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4815 if (viewAncestor != null) { 4816 viewAncestor.dispatchDoneAnimating(); 4817 } 4818 } 4819 } 4820 4821 /** 4822 * Maintains state information for a single trackball axis, generating 4823 * discrete (DPAD) movements based on raw trackball motion. 4824 */ 4825 static final class TrackballAxis { 4826 /** 4827 * The maximum amount of acceleration we will apply. 4828 */ 4829 static final float MAX_ACCELERATION = 20; 4830 4831 /** 4832 * The maximum amount of time (in milliseconds) between events in order 4833 * for us to consider the user to be doing fast trackball movements, 4834 * and thus apply an acceleration. 4835 */ 4836 static final long FAST_MOVE_TIME = 150; 4837 4838 /** 4839 * Scaling factor to the time (in milliseconds) between events to how 4840 * much to multiple/divide the current acceleration. When movement 4841 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4842 * FAST_MOVE_TIME it divides it. 4843 */ 4844 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4845 4846 float position; 4847 float absPosition; 4848 float acceleration = 1; 4849 long lastMoveTime = 0; 4850 int step; 4851 int dir; 4852 int nonAccelMovement; 4853 4854 void reset(int _step) { 4855 position = 0; 4856 acceleration = 1; 4857 lastMoveTime = 0; 4858 step = _step; 4859 dir = 0; 4860 } 4861 4862 /** 4863 * Add trackball movement into the state. If the direction of movement 4864 * has been reversed, the state is reset before adding the 4865 * movement (so that you don't have to compensate for any previously 4866 * collected movement before see the result of the movement in the 4867 * new direction). 4868 * 4869 * @return Returns the absolute value of the amount of movement 4870 * collected so far. 4871 */ 4872 float collect(float off, long time, String axis) { 4873 long normTime; 4874 if (off > 0) { 4875 normTime = (long)(off * FAST_MOVE_TIME); 4876 if (dir < 0) { 4877 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4878 position = 0; 4879 step = 0; 4880 acceleration = 1; 4881 lastMoveTime = 0; 4882 } 4883 dir = 1; 4884 } else if (off < 0) { 4885 normTime = (long)((-off) * FAST_MOVE_TIME); 4886 if (dir > 0) { 4887 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4888 position = 0; 4889 step = 0; 4890 acceleration = 1; 4891 lastMoveTime = 0; 4892 } 4893 dir = -1; 4894 } else { 4895 normTime = 0; 4896 } 4897 4898 // The number of milliseconds between each movement that is 4899 // considered "normal" and will not result in any acceleration 4900 // or deceleration, scaled by the offset we have here. 4901 if (normTime > 0) { 4902 long delta = time - lastMoveTime; 4903 lastMoveTime = time; 4904 float acc = acceleration; 4905 if (delta < normTime) { 4906 // The user is scrolling rapidly, so increase acceleration. 4907 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4908 if (scale > 1) acc *= scale; 4909 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4910 + off + " normTime=" + normTime + " delta=" + delta 4911 + " scale=" + scale + " acc=" + acc); 4912 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4913 } else { 4914 // The user is scrolling slowly, so decrease acceleration. 4915 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4916 if (scale > 1) acc /= scale; 4917 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4918 + off + " normTime=" + normTime + " delta=" + delta 4919 + " scale=" + scale + " acc=" + acc); 4920 acceleration = acc > 1 ? acc : 1; 4921 } 4922 } 4923 position += off; 4924 return (absPosition = Math.abs(position)); 4925 } 4926 4927 /** 4928 * Generate the number of discrete movement events appropriate for 4929 * the currently collected trackball movement. 4930 * 4931 * @param precision The minimum movement required to generate the 4932 * first discrete movement. 4933 * 4934 * @return Returns the number of discrete movements, either positive 4935 * or negative, or 0 if there is not enough trackball movement yet 4936 * for a discrete movement. 4937 */ 4938 int generate(float precision) { 4939 int movement = 0; 4940 nonAccelMovement = 0; 4941 do { 4942 final int dir = position >= 0 ? 1 : -1; 4943 switch (step) { 4944 // If we are going to execute the first step, then we want 4945 // to do this as soon as possible instead of waiting for 4946 // a full movement, in order to make things look responsive. 4947 case 0: 4948 if (absPosition < precision) { 4949 return movement; 4950 } 4951 movement += dir; 4952 nonAccelMovement += dir; 4953 step = 1; 4954 break; 4955 // If we have generated the first movement, then we need 4956 // to wait for the second complete trackball motion before 4957 // generating the second discrete movement. 4958 case 1: 4959 if (absPosition < 2) { 4960 return movement; 4961 } 4962 movement += dir; 4963 nonAccelMovement += dir; 4964 position += dir > 0 ? -2 : 2; 4965 absPosition = Math.abs(position); 4966 step = 2; 4967 break; 4968 // After the first two, we generate discrete movements 4969 // consistently with the trackball, applying an acceleration 4970 // if the trackball is moving quickly. This is a simple 4971 // acceleration on top of what we already compute based 4972 // on how quickly the wheel is being turned, to apply 4973 // a longer increasing acceleration to continuous movement 4974 // in one direction. 4975 default: 4976 if (absPosition < 1) { 4977 return movement; 4978 } 4979 movement += dir; 4980 position += dir >= 0 ? -1 : 1; 4981 absPosition = Math.abs(position); 4982 float acc = acceleration; 4983 acc *= 1.1f; 4984 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4985 break; 4986 } 4987 } while (true); 4988 } 4989 } 4990 4991 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4992 public CalledFromWrongThreadException(String msg) { 4993 super(msg); 4994 } 4995 } 4996 4997 private SurfaceHolder mHolder = new SurfaceHolder() { 4998 // we only need a SurfaceHolder for opengl. it would be nice 4999 // to implement everything else though, especially the callback 5000 // support (opengl doesn't make use of it right now, but eventually 5001 // will). 5002 public Surface getSurface() { 5003 return mSurface; 5004 } 5005 5006 public boolean isCreating() { 5007 return false; 5008 } 5009 5010 public void addCallback(Callback callback) { 5011 } 5012 5013 public void removeCallback(Callback callback) { 5014 } 5015 5016 public void setFixedSize(int width, int height) { 5017 } 5018 5019 public void setSizeFromLayout() { 5020 } 5021 5022 public void setFormat(int format) { 5023 } 5024 5025 public void setType(int type) { 5026 } 5027 5028 public void setKeepScreenOn(boolean screenOn) { 5029 } 5030 5031 public Canvas lockCanvas() { 5032 return null; 5033 } 5034 5035 public Canvas lockCanvas(Rect dirty) { 5036 return null; 5037 } 5038 5039 public void unlockCanvasAndPost(Canvas canvas) { 5040 } 5041 public Rect getSurfaceFrame() { 5042 return null; 5043 } 5044 }; 5045 5046 static RunQueue getRunQueue() { 5047 RunQueue rq = sRunQueues.get(); 5048 if (rq != null) { 5049 return rq; 5050 } 5051 rq = new RunQueue(); 5052 sRunQueues.set(rq); 5053 return rq; 5054 } 5055 5056 /** 5057 * The run queue is used to enqueue pending work from Views when no Handler is 5058 * attached. The work is executed during the next call to performTraversals on 5059 * the thread. 5060 * @hide 5061 */ 5062 static final class RunQueue { 5063 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5064 5065 void post(Runnable action) { 5066 postDelayed(action, 0); 5067 } 5068 5069 void postDelayed(Runnable action, long delayMillis) { 5070 HandlerAction handlerAction = new HandlerAction(); 5071 handlerAction.action = action; 5072 handlerAction.delay = delayMillis; 5073 5074 synchronized (mActions) { 5075 mActions.add(handlerAction); 5076 } 5077 } 5078 5079 void removeCallbacks(Runnable action) { 5080 final HandlerAction handlerAction = new HandlerAction(); 5081 handlerAction.action = action; 5082 5083 synchronized (mActions) { 5084 final ArrayList<HandlerAction> actions = mActions; 5085 5086 while (actions.remove(handlerAction)) { 5087 // Keep going 5088 } 5089 } 5090 } 5091 5092 void executeActions(Handler handler) { 5093 synchronized (mActions) { 5094 final ArrayList<HandlerAction> actions = mActions; 5095 final int count = actions.size(); 5096 5097 for (int i = 0; i < count; i++) { 5098 final HandlerAction handlerAction = actions.get(i); 5099 handler.postDelayed(handlerAction.action, handlerAction.delay); 5100 } 5101 5102 actions.clear(); 5103 } 5104 } 5105 5106 private static class HandlerAction { 5107 Runnable action; 5108 long delay; 5109 5110 @Override 5111 public boolean equals(Object o) { 5112 if (this == o) return true; 5113 if (o == null || getClass() != o.getClass()) return false; 5114 5115 HandlerAction that = (HandlerAction) o; 5116 return !(action != null ? !action.equals(that.action) : that.action != null); 5117 5118 } 5119 5120 @Override 5121 public int hashCode() { 5122 int result = action != null ? action.hashCode() : 0; 5123 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5124 return result; 5125 } 5126 } 5127 } 5128 5129 /** 5130 * Class for managing the accessibility interaction connection 5131 * based on the global accessibility state. 5132 */ 5133 final class AccessibilityInteractionConnectionManager 5134 implements AccessibilityStateChangeListener { 5135 public void onAccessibilityStateChanged(boolean enabled) { 5136 if (enabled) { 5137 ensureConnection(); 5138 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5139 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5140 View focusedView = mView.findFocus(); 5141 if (focusedView != null && focusedView != mView) { 5142 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5143 } 5144 } 5145 } else { 5146 ensureNoConnection(); 5147 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5148 } 5149 } 5150 5151 public void ensureConnection() { 5152 if (mAttachInfo != null) { 5153 final boolean registered = 5154 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5155 if (!registered) { 5156 mAttachInfo.mAccessibilityWindowId = 5157 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5158 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5159 } 5160 } 5161 } 5162 5163 public void ensureNoConnection() { 5164 final boolean registered = 5165 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5166 if (registered) { 5167 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5168 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5169 } 5170 } 5171 } 5172 5173 /** 5174 * This class is an interface this ViewAncestor provides to the 5175 * AccessibilityManagerService to the latter can interact with 5176 * the view hierarchy in this ViewAncestor. 5177 */ 5178 static final class AccessibilityInteractionConnection 5179 extends IAccessibilityInteractionConnection.Stub { 5180 private final WeakReference<ViewRootImpl> mViewRootImpl; 5181 5182 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5183 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5184 } 5185 5186 @Override 5187 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5188 int windowLeft, int windowTop, int interactionId, 5189 IAccessibilityInteractionConnectionCallback callback, int flags, 5190 int interrogatingPid, long interrogatingTid) { 5191 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5192 if (viewRootImpl != null && viewRootImpl.mView != null) { 5193 viewRootImpl.getAccessibilityInteractionController() 5194 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5195 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5196 interrogatingTid); 5197 } else { 5198 // We cannot make the call and notify the caller so it does not wait. 5199 try { 5200 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5201 } catch (RemoteException re) { 5202 /* best effort - ignore */ 5203 } 5204 } 5205 } 5206 5207 @Override 5208 public void performAccessibilityAction(long accessibilityNodeId, int action, 5209 Bundle arguments, int interactionId, 5210 IAccessibilityInteractionConnectionCallback callback, int flags, 5211 int interogatingPid, long interrogatingTid) { 5212 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5213 if (viewRootImpl != null && viewRootImpl.mView != null) { 5214 viewRootImpl.getAccessibilityInteractionController() 5215 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5216 interactionId, callback, flags, interogatingPid, interrogatingTid); 5217 } else { 5218 // We cannot make the call and notify the caller so it does not wait. 5219 try { 5220 callback.setPerformAccessibilityActionResult(false, interactionId); 5221 } catch (RemoteException re) { 5222 /* best effort - ignore */ 5223 } 5224 } 5225 } 5226 5227 @Override 5228 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5229 int windowLeft, int windowTop, int interactionId, 5230 IAccessibilityInteractionConnectionCallback callback, int flags, 5231 int interrogatingPid, long interrogatingTid) { 5232 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5233 if (viewRootImpl != null && viewRootImpl.mView != null) { 5234 viewRootImpl.getAccessibilityInteractionController() 5235 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5236 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5237 interrogatingTid); 5238 } else { 5239 // We cannot make the call and notify the caller so it does not wait. 5240 try { 5241 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5242 } catch (RemoteException re) { 5243 /* best effort - ignore */ 5244 } 5245 } 5246 } 5247 5248 @Override 5249 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5250 int windowLeft, int windowTop, int interactionId, 5251 IAccessibilityInteractionConnectionCallback callback, int flags, 5252 int interrogatingPid, long interrogatingTid) { 5253 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5254 if (viewRootImpl != null && viewRootImpl.mView != null) { 5255 viewRootImpl.getAccessibilityInteractionController() 5256 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5257 windowLeft, windowTop, interactionId, callback, flags, interrogatingPid, 5258 interrogatingTid); 5259 } else { 5260 // We cannot make the call and notify the caller so it does not wait. 5261 try { 5262 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5263 } catch (RemoteException re) { 5264 /* best effort - ignore */ 5265 } 5266 } 5267 } 5268 5269 @Override 5270 public void findFocus(long accessibilityNodeId, int focusType, int windowLeft, 5271 int windowTop, int interactionId, 5272 IAccessibilityInteractionConnectionCallback callback, int flags, 5273 int interrogatingPid, long interrogatingTid) { 5274 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5275 if (viewRootImpl != null && viewRootImpl.mView != null) { 5276 viewRootImpl.getAccessibilityInteractionController() 5277 .findFocusClientThread(accessibilityNodeId, focusType, windowLeft, windowTop, 5278 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5279 } else { 5280 // We cannot make the call and notify the caller so it does not wait. 5281 try { 5282 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5283 } catch (RemoteException re) { 5284 /* best effort - ignore */ 5285 } 5286 } 5287 } 5288 5289 @Override 5290 public void focusSearch(long accessibilityNodeId, int direction, int windowLeft, 5291 int windowTop, int interactionId, 5292 IAccessibilityInteractionConnectionCallback callback, int flags, 5293 int interrogatingPid, long interrogatingTid) { 5294 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5295 if (viewRootImpl != null && viewRootImpl.mView != null) { 5296 viewRootImpl.getAccessibilityInteractionController() 5297 .focusSearchClientThread(accessibilityNodeId, direction, windowLeft, windowTop, 5298 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5299 } else { 5300 // We cannot make the call and notify the caller so it does not wait. 5301 try { 5302 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5303 } catch (RemoteException re) { 5304 /* best effort - ignore */ 5305 } 5306 } 5307 } 5308 } 5309 5310 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5311 public View mSource; 5312 5313 public void run() { 5314 if (mSource != null) { 5315 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5316 mSource.resetAccessibilityStateChanged(); 5317 mSource = null; 5318 } 5319 } 5320 } 5321} 5322