ViewRootImpl.java revision 63cf0752226383cfc8fa35a3233413301b49fab7
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.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerImpl}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static IWindowSession sWindowSession; 129 130 static final Object mStaticInit = new Object(); 131 static boolean mInitialized = false; 132 133 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 134 135 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 136 static boolean sFirstDrawComplete = false; 137 138 static final ArrayList<ComponentCallbacks> sConfigCallbacks 139 = new ArrayList<ComponentCallbacks>(); 140 141 private static boolean sUseRenderThread = false; 142 private static boolean sRenderThreadQueried = false; 143 private static final Object[] sRenderThreadQueryLock = new Object[0]; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 boolean mFitSystemWindowsRequested; 220 boolean mLayoutRequested; 221 boolean mFirst; 222 boolean mReportNextDraw; 223 boolean mFullRedrawNeeded; 224 boolean mNewSurfaceNeeded; 225 boolean mHasHadWindowFocus; 226 boolean mLastWasImTarget; 227 boolean mWindowsAnimating; 228 boolean mIsDrawing; 229 int mLastSystemUiVisibility; 230 int mClientWindowLayoutFlags; 231 232 // Pool of queued input events. 233 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 234 private QueuedInputEvent mQueuedInputEventPool; 235 private int mQueuedInputEventPoolSize; 236 237 // Input event queue. 238 QueuedInputEvent mFirstPendingInputEvent; 239 QueuedInputEvent mCurrentInputEvent; 240 boolean mProcessInputEventsScheduled; 241 242 boolean mWindowAttributesChanged = false; 243 int mWindowAttributesChangesFlag = 0; 244 245 // These can be accessed by any thread, must be protected with a lock. 246 // Surface can never be reassigned or cleared (use Surface.clear()). 247 private final Surface mSurface = new Surface(); 248 249 boolean mAdded; 250 boolean mAddedTouchMode; 251 252 CompatibilityInfoHolder mCompatibilityInfo; 253 254 // These are accessed by multiple threads. 255 final Rect mWinFrame; // frame given by window manager. 256 257 final Rect mPendingVisibleInsets = new Rect(); 258 final Rect mPendingContentInsets = new Rect(); 259 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 260 = new ViewTreeObserver.InternalInsetsInfo(); 261 262 final Rect mFitSystemWindowsInsets = new Rect(); 263 264 final Configuration mLastConfiguration = new Configuration(); 265 final Configuration mPendingConfiguration = new Configuration(); 266 267 class ResizedInfo { 268 Rect contentInsets; 269 Rect visibleInsets; 270 Configuration newConfig; 271 } 272 273 boolean mScrollMayChange; 274 int mSoftInputMode; 275 View mLastScrolledFocus; 276 int mScrollY; 277 int mCurScrollY; 278 Scroller mScroller; 279 HardwareLayer mResizeBuffer; 280 long mResizeBufferStartTime; 281 int mResizeBufferDuration; 282 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 283 private ArrayList<LayoutTransition> mPendingTransitions; 284 285 final ViewConfiguration mViewConfiguration; 286 287 /* Drag/drop */ 288 ClipDescription mDragDescription; 289 View mCurrentDragView; 290 volatile Object mLocalDragState; 291 final PointF mDragPoint = new PointF(); 292 final PointF mLastTouchPoint = new PointF(); 293 294 private boolean mProfileRendering; 295 private Thread mRenderProfiler; 296 private volatile boolean mRenderProfilingEnabled; 297 298 // Variables to track frames per second, enabled via DEBUG_FPS flag 299 private long mFpsStartTime = -1; 300 private long mFpsPrevTime = -1; 301 private int mFpsNumFrames; 302 303 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 304 305 /** 306 * see {@link #playSoundEffect(int)} 307 */ 308 AudioManager mAudioManager; 309 310 final AccessibilityManager mAccessibilityManager; 311 312 AccessibilityInteractionController mAccessibilityInteractionController; 313 314 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 315 316 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 317 318 HashSet<View> mTempHashSet; 319 320 private final int mDensity; 321 322 /** 323 * Consistency verifier for debugging purposes. 324 */ 325 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 326 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 327 new InputEventConsistencyVerifier(this, 0) : null; 328 329 public static IWindowSession getWindowSession(Looper mainLooper) { 330 synchronized (mStaticInit) { 331 if (!mInitialized) { 332 try { 333 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 334 IWindowManager windowManager = Display.getWindowManager(); 335 sWindowSession = windowManager.openSession( 336 imm.getClient(), imm.getInputContext()); 337 float animatorScale = windowManager.getAnimationScale(2); 338 ValueAnimator.setDurationScale(animatorScale); 339 mInitialized = true; 340 } catch (RemoteException e) { 341 } 342 } 343 return sWindowSession; 344 } 345 } 346 347 static final class SystemUiVisibilityInfo { 348 int seq; 349 int globalVisibility; 350 int localValue; 351 int localChanges; 352 } 353 354 public ViewRootImpl(Context context) { 355 super(); 356 357 if (MEASURE_LATENCY) { 358 if (lt == null) { 359 lt = new LatencyTimer(100, 1000); 360 } 361 } 362 363 // Initialize the statics when this class is first instantiated. This is 364 // done here instead of in the static block because Zygote does not 365 // allow the spawning of threads. 366 getWindowSession(context.getMainLooper()); 367 368 mThread = Thread.currentThread(); 369 mLocation = new WindowLeaked(null); 370 mLocation.fillInStackTrace(); 371 mWidth = -1; 372 mHeight = -1; 373 mDirty = new Rect(); 374 mTempRect = new Rect(); 375 mVisRect = new Rect(); 376 mWinFrame = new Rect(); 377 mWindow = new W(this); 378 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 379 mInputMethodCallback = new InputMethodCallback(this); 380 mViewVisibility = View.GONE; 381 mTransparentRegion = new Region(); 382 mPreviousTransparentRegion = new Region(); 383 mFirst = true; // true for the first time the view is added 384 mAdded = false; 385 mAccessibilityManager = AccessibilityManager.getInstance(context); 386 mAccessibilityInteractionConnectionManager = 387 new AccessibilityInteractionConnectionManager(); 388 mAccessibilityManager.addAccessibilityStateChangeListener( 389 mAccessibilityInteractionConnectionManager); 390 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 391 mViewConfiguration = ViewConfiguration.get(context); 392 mDensity = context.getResources().getDisplayMetrics().densityDpi; 393 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 394 mProfileRendering = Boolean.parseBoolean( 395 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 396 mChoreographer = Choreographer.getInstance(); 397 398 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 399 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 400 loadSystemProperties(); 401 } 402 403 /** 404 * @return True if the application requests the use of a separate render thread, 405 * false otherwise 406 */ 407 private static boolean isRenderThreadRequested(Context context) { 408 if (USE_RENDER_THREAD) { 409 synchronized (sRenderThreadQueryLock) { 410 if (!sRenderThreadQueried) { 411 final PackageManager packageManager = context.getPackageManager(); 412 final String packageName = context.getApplicationInfo().packageName; 413 try { 414 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 415 PackageManager.GET_META_DATA); 416 if (applicationInfo.metaData != null) { 417 sUseRenderThread = applicationInfo.metaData.getBoolean( 418 "android.graphics.renderThread", false); 419 } 420 } catch (PackageManager.NameNotFoundException e) { 421 } finally { 422 sRenderThreadQueried = true; 423 } 424 } 425 return sUseRenderThread; 426 } 427 } else { 428 return false; 429 } 430 } 431 432 public static void addFirstDrawHandler(Runnable callback) { 433 synchronized (sFirstDrawHandlers) { 434 if (!sFirstDrawComplete) { 435 sFirstDrawHandlers.add(callback); 436 } 437 } 438 } 439 440 public static void addConfigCallback(ComponentCallbacks callback) { 441 synchronized (sConfigCallbacks) { 442 sConfigCallbacks.add(callback); 443 } 444 } 445 446 // FIXME for perf testing only 447 private boolean mProfile = false; 448 449 /** 450 * Call this to profile the next traversal call. 451 * FIXME for perf testing only. Remove eventually 452 */ 453 public void profile() { 454 mProfile = true; 455 } 456 457 /** 458 * Indicates whether we are in touch mode. Calling this method triggers an IPC 459 * call and should be avoided whenever possible. 460 * 461 * @return True, if the device is in touch mode, false otherwise. 462 * 463 * @hide 464 */ 465 static boolean isInTouchMode() { 466 if (mInitialized) { 467 try { 468 return sWindowSession.getInTouchMode(); 469 } catch (RemoteException e) { 470 } 471 } 472 return false; 473 } 474 475 /** 476 * We have one child 477 */ 478 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 479 synchronized (this) { 480 if (mView == null) { 481 mView = view; 482 mFallbackEventHandler.setView(view); 483 mWindowAttributes.copyFrom(attrs); 484 attrs = mWindowAttributes; 485 // Keep track of the actual window flags supplied by the client. 486 mClientWindowLayoutFlags = attrs.flags; 487 488 setAccessibilityFocus(null, null); 489 490 if (view instanceof RootViewSurfaceTaker) { 491 mSurfaceHolderCallback = 492 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 493 if (mSurfaceHolderCallback != null) { 494 mSurfaceHolder = new TakenSurfaceHolder(); 495 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 496 } 497 } 498 499 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 500 mTranslator = compatibilityInfo.getTranslator(); 501 502 // If the application owns the surface, don't enable hardware acceleration 503 if (mSurfaceHolder == null) { 504 enableHardwareAcceleration(mView.getContext(), attrs); 505 } 506 507 boolean restore = false; 508 if (mTranslator != null) { 509 mSurface.setCompatibilityTranslator(mTranslator); 510 restore = true; 511 attrs.backup(); 512 mTranslator.translateWindowLayout(attrs); 513 } 514 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 515 516 if (!compatibilityInfo.supportsScreen()) { 517 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 518 mLastInCompatMode = true; 519 } 520 521 mSoftInputMode = attrs.softInputMode; 522 mWindowAttributesChanged = true; 523 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 524 mAttachInfo.mRootView = view; 525 mAttachInfo.mScalingRequired = mTranslator != null; 526 mAttachInfo.mApplicationScale = 527 mTranslator == null ? 1.0f : mTranslator.applicationScale; 528 if (panelParentView != null) { 529 mAttachInfo.mPanelParentWindowToken 530 = panelParentView.getApplicationWindowToken(); 531 } 532 mAdded = true; 533 int res; /* = WindowManagerImpl.ADD_OKAY; */ 534 535 // Schedule the first layout -before- adding to the window 536 // manager, to make sure we do the relayout before receiving 537 // any other events from the system. 538 requestLayout(); 539 if ((mWindowAttributes.inputFeatures 540 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 541 mInputChannel = new InputChannel(); 542 } 543 try { 544 mOrigWindowType = mWindowAttributes.type; 545 mAttachInfo.mRecomputeGlobalAttributes = true; 546 collectViewAttributes(); 547 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 548 getHostVisibility(), mAttachInfo.mContentInsets, 549 mInputChannel); 550 } catch (RemoteException e) { 551 mAdded = false; 552 mView = null; 553 mAttachInfo.mRootView = null; 554 mInputChannel = null; 555 mFallbackEventHandler.setView(null); 556 unscheduleTraversals(); 557 setAccessibilityFocus(null, null); 558 throw new RuntimeException("Adding window failed", e); 559 } finally { 560 if (restore) { 561 attrs.restore(); 562 } 563 } 564 565 if (mTranslator != null) { 566 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 567 } 568 mPendingContentInsets.set(mAttachInfo.mContentInsets); 569 mPendingVisibleInsets.set(0, 0, 0, 0); 570 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 571 if (res < WindowManagerImpl.ADD_OKAY) { 572 mView = null; 573 mAttachInfo.mRootView = null; 574 mAdded = false; 575 mFallbackEventHandler.setView(null); 576 unscheduleTraversals(); 577 setAccessibilityFocus(null, null); 578 switch (res) { 579 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 580 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 581 throw new WindowManagerImpl.BadTokenException( 582 "Unable to add window -- token " + attrs.token 583 + " is not valid; is your activity running?"); 584 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 585 throw new WindowManagerImpl.BadTokenException( 586 "Unable to add window -- token " + attrs.token 587 + " is not for an application"); 588 case WindowManagerImpl.ADD_APP_EXITING: 589 throw new WindowManagerImpl.BadTokenException( 590 "Unable to add window -- app for token " + attrs.token 591 + " is exiting"); 592 case WindowManagerImpl.ADD_DUPLICATE_ADD: 593 throw new WindowManagerImpl.BadTokenException( 594 "Unable to add window -- window " + mWindow 595 + " has already been added"); 596 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 597 // Silently ignore -- we would have just removed it 598 // right away, anyway. 599 return; 600 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 601 throw new WindowManagerImpl.BadTokenException( 602 "Unable to add window " + mWindow + 603 " -- another window of this type already exists"); 604 case WindowManagerImpl.ADD_PERMISSION_DENIED: 605 throw new WindowManagerImpl.BadTokenException( 606 "Unable to add window " + mWindow + 607 " -- permission denied for this window type"); 608 } 609 throw new RuntimeException( 610 "Unable to add window -- unknown error code " + res); 611 } 612 613 if (view instanceof RootViewSurfaceTaker) { 614 mInputQueueCallback = 615 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 616 } 617 if (mInputChannel != null) { 618 if (mInputQueueCallback != null) { 619 mInputQueue = new InputQueue(mInputChannel); 620 mInputQueueCallback.onInputQueueCreated(mInputQueue); 621 } else { 622 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 623 Looper.myLooper()); 624 } 625 } 626 627 view.assignParent(this); 628 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 629 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 630 631 if (mAccessibilityManager.isEnabled()) { 632 mAccessibilityInteractionConnectionManager.ensureConnection(); 633 } 634 635 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 636 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 637 } 638 } 639 } 640 } 641 642 void destroyHardwareResources() { 643 if (mAttachInfo.mHardwareRenderer != null) { 644 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 645 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 646 } 647 mAttachInfo.mHardwareRenderer.destroy(false); 648 } 649 } 650 651 void terminateHardwareResources() { 652 if (mAttachInfo.mHardwareRenderer != null) { 653 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 654 mAttachInfo.mHardwareRenderer.destroy(false); 655 } 656 } 657 658 void destroyHardwareLayers() { 659 if (mThread != Thread.currentThread()) { 660 if (mAttachInfo.mHardwareRenderer != null && 661 mAttachInfo.mHardwareRenderer.isEnabled()) { 662 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 663 } 664 } else { 665 if (mAttachInfo.mHardwareRenderer != null && 666 mAttachInfo.mHardwareRenderer.isEnabled()) { 667 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 668 } 669 } 670 } 671 672 public boolean attachFunctor(int functor) { 673 //noinspection SimplifiableIfStatement 674 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 675 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 676 } 677 return false; 678 } 679 680 public void detachFunctor(int functor) { 681 if (mAttachInfo.mHardwareRenderer != null) { 682 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 683 } 684 } 685 686 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 687 mAttachInfo.mHardwareAccelerated = false; 688 mAttachInfo.mHardwareAccelerationRequested = false; 689 690 // Don't enable hardware acceleration when the application is in compatibility mode 691 if (mTranslator != null) return; 692 693 // Try to enable hardware acceleration if requested 694 final boolean hardwareAccelerated = 695 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 696 697 if (hardwareAccelerated) { 698 if (!HardwareRenderer.isAvailable()) { 699 return; 700 } 701 702 // Persistent processes (including the system) should not do 703 // accelerated rendering on low-end devices. In that case, 704 // sRendererDisabled will be set. In addition, the system process 705 // itself should never do accelerated rendering. In that case, both 706 // sRendererDisabled and sSystemRendererDisabled are set. When 707 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 708 // can be used by code on the system process to escape that and enable 709 // HW accelerated drawing. (This is basically for the lock screen.) 710 711 final boolean fakeHwAccelerated = (attrs.privateFlags & 712 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 713 final boolean forceHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 715 716 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 717 && forceHwAccelerated)) { 718 // Don't enable hardware acceleration when we're not on the main thread 719 if (!HardwareRenderer.sSystemRendererDisabled && 720 Looper.getMainLooper() != Looper.myLooper()) { 721 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 722 + "acceleration outside of the main thread, aborting"); 723 return; 724 } 725 726 final boolean renderThread = isRenderThreadRequested(context); 727 if (renderThread) { 728 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 729 } 730 731 if (mAttachInfo.mHardwareRenderer != null) { 732 mAttachInfo.mHardwareRenderer.destroy(true); 733 } 734 735 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 736 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 737 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 738 = mAttachInfo.mHardwareRenderer != null; 739 740 } else if (fakeHwAccelerated) { 741 // The window had wanted to use hardware acceleration, but this 742 // is not allowed in its process. By setting this flag, it can 743 // still render as if it was accelerated. This is basically for 744 // the preview windows the window manager shows for launching 745 // applications, so they will look more like the app being launched. 746 mAttachInfo.mHardwareAccelerationRequested = true; 747 } 748 } 749 } 750 751 public View getView() { 752 return mView; 753 } 754 755 final WindowLeaked getLocation() { 756 return mLocation; 757 } 758 759 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 760 synchronized (this) { 761 int oldSoftInputMode = mWindowAttributes.softInputMode; 762 // Keep track of the actual window flags supplied by the client. 763 mClientWindowLayoutFlags = attrs.flags; 764 // preserve compatible window flag if exists. 765 int compatibleWindowFlag = 766 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 767 // transfer over system UI visibility values as they carry current state. 768 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 769 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 770 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 771 mWindowAttributes.flags |= compatibleWindowFlag; 772 773 applyKeepScreenOnFlag(mWindowAttributes); 774 775 if (newView) { 776 mSoftInputMode = attrs.softInputMode; 777 requestLayout(); 778 } 779 // Don't lose the mode we last auto-computed. 780 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 781 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 782 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 783 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 784 | (oldSoftInputMode 785 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 786 } 787 mWindowAttributesChanged = true; 788 scheduleTraversals(); 789 } 790 } 791 792 void handleAppVisibility(boolean visible) { 793 if (mAppVisible != visible) { 794 mAppVisible = visible; 795 scheduleTraversals(); 796 } 797 } 798 799 void handleGetNewSurface() { 800 mNewSurfaceNeeded = true; 801 mFullRedrawNeeded = true; 802 scheduleTraversals(); 803 } 804 805 void handleScreenStateChange(boolean on) { 806 if (on != mAttachInfo.mScreenOn) { 807 mAttachInfo.mScreenOn = on; 808 if (mView != null) { 809 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 810 } 811 if (on) { 812 mFullRedrawNeeded = true; 813 scheduleTraversals(); 814 } 815 } 816 } 817 818 /** 819 * {@inheritDoc} 820 */ 821 public void requestFitSystemWindows() { 822 checkThread(); 823 mFitSystemWindowsRequested = true; 824 scheduleTraversals(); 825 } 826 827 /** 828 * {@inheritDoc} 829 */ 830 public void requestLayout() { 831 checkThread(); 832 mLayoutRequested = true; 833 scheduleTraversals(); 834 } 835 836 /** 837 * {@inheritDoc} 838 */ 839 public boolean isLayoutRequested() { 840 return mLayoutRequested; 841 } 842 843 void invalidate() { 844 mDirty.set(0, 0, mWidth, mHeight); 845 scheduleTraversals(); 846 } 847 848 void invalidateWorld(View view) { 849 view.invalidate(); 850 if (view instanceof ViewGroup) { 851 ViewGroup parent = (ViewGroup)view; 852 for (int i=0; i<parent.getChildCount(); i++) { 853 invalidateWorld(parent.getChildAt(i)); 854 } 855 } 856 } 857 858 public void invalidateChild(View child, Rect dirty) { 859 invalidateChildInParent(null, dirty); 860 } 861 862 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 863 checkThread(); 864 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 865 866 if (dirty == null) { 867 invalidate(); 868 return null; 869 } else if (dirty.isEmpty()) { 870 return null; 871 } 872 873 if (mCurScrollY != 0 || mTranslator != null) { 874 mTempRect.set(dirty); 875 dirty = mTempRect; 876 if (mCurScrollY != 0) { 877 dirty.offset(0, -mCurScrollY); 878 } 879 if (mTranslator != null) { 880 mTranslator.translateRectInAppWindowToScreen(dirty); 881 } 882 if (mAttachInfo.mScalingRequired) { 883 dirty.inset(-1, -1); 884 } 885 } 886 887 final Rect localDirty = mDirty; 888 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 889 mAttachInfo.mSetIgnoreDirtyState = true; 890 mAttachInfo.mIgnoreDirtyState = true; 891 } 892 893 // Add the new dirty rect to the current one 894 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 895 // Intersect with the bounds of the window to skip 896 // updates that lie outside of the visible region 897 final float appScale = mAttachInfo.mApplicationScale; 898 localDirty.intersect(0, 0, 899 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 900 901 if (!mWillDrawSoon) { 902 scheduleTraversals(); 903 } 904 905 return null; 906 } 907 908 void setStopped(boolean stopped) { 909 if (mStopped != stopped) { 910 mStopped = stopped; 911 if (!stopped) { 912 scheduleTraversals(); 913 } 914 } 915 } 916 917 public ViewParent getParent() { 918 return null; 919 } 920 921 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 922 if (child != mView) { 923 throw new RuntimeException("child is not mine, honest!"); 924 } 925 // Note: don't apply scroll offset, because we want to know its 926 // visibility in the virtual canvas being given to the view hierarchy. 927 return r.intersect(0, 0, mWidth, mHeight); 928 } 929 930 public void bringChildToFront(View child) { 931 } 932 933 int getHostVisibility() { 934 return mAppVisible ? mView.getVisibility() : View.GONE; 935 } 936 937 void disposeResizeBuffer() { 938 if (mResizeBuffer != null) { 939 mResizeBuffer.destroy(); 940 mResizeBuffer = null; 941 } 942 } 943 944 /** 945 * Add LayoutTransition to the list of transitions to be started in the next traversal. 946 * This list will be cleared after the transitions on the list are start()'ed. These 947 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 948 * happens during the layout phase of traversal, which we want to complete before any of the 949 * animations are started (because those animations may side-effect properties that layout 950 * depends upon, like the bounding rectangles of the affected views). So we add the transition 951 * to the list and it is started just prior to starting the drawing phase of traversal. 952 * 953 * @param transition The LayoutTransition to be started on the next traversal. 954 * 955 * @hide 956 */ 957 public void requestTransitionStart(LayoutTransition transition) { 958 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 959 if (mPendingTransitions == null) { 960 mPendingTransitions = new ArrayList<LayoutTransition>(); 961 } 962 mPendingTransitions.add(transition); 963 } 964 } 965 966 void scheduleTraversals() { 967 if (!mTraversalScheduled) { 968 mTraversalScheduled = true; 969 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 970 mChoreographer.postCallback( 971 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 972 scheduleConsumeBatchedInput(); 973 } 974 } 975 976 void unscheduleTraversals() { 977 if (mTraversalScheduled) { 978 mTraversalScheduled = false; 979 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 980 mChoreographer.removeCallbacks( 981 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 982 } 983 } 984 985 void doTraversal() { 986 if (mTraversalScheduled) { 987 mTraversalScheduled = false; 988 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 989 990 if (mProfile) { 991 Debug.startMethodTracing("ViewAncestor"); 992 } 993 994 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 995 try { 996 performTraversals(); 997 } finally { 998 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 999 } 1000 1001 if (mProfile) { 1002 Debug.stopMethodTracing(); 1003 mProfile = false; 1004 } 1005 } 1006 } 1007 1008 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1009 // Update window's global keep screen on flag: if a view has requested 1010 // that the screen be kept on, then it is always set; otherwise, it is 1011 // set to whatever the client last requested for the global state. 1012 if (mAttachInfo.mKeepScreenOn) { 1013 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1014 } else { 1015 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1016 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1017 } 1018 } 1019 1020 private boolean collectViewAttributes() { 1021 final View.AttachInfo attachInfo = mAttachInfo; 1022 if (attachInfo.mRecomputeGlobalAttributes) { 1023 //Log.i(TAG, "Computing view hierarchy attributes!"); 1024 attachInfo.mRecomputeGlobalAttributes = false; 1025 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1026 int oldVis = attachInfo.mSystemUiVisibility; 1027 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1028 attachInfo.mKeepScreenOn = false; 1029 attachInfo.mSystemUiVisibility = 0; 1030 attachInfo.mHasSystemUiListeners = false; 1031 mView.dispatchCollectViewAttributes(attachInfo, 0); 1032 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1033 if (attachInfo.mKeepScreenOn != oldScreenOn 1034 || attachInfo.mSystemUiVisibility != oldVis 1035 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1036 WindowManager.LayoutParams params = mWindowAttributes; 1037 applyKeepScreenOnFlag(params); 1038 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1039 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1040 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1041 return true; 1042 } 1043 } 1044 return false; 1045 } 1046 1047 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1048 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1049 int childWidthMeasureSpec; 1050 int childHeightMeasureSpec; 1051 boolean windowSizeMayChange = false; 1052 1053 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1054 "Measuring " + host + " in display " + desiredWindowWidth 1055 + "x" + desiredWindowHeight + "..."); 1056 1057 boolean goodMeasure = false; 1058 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1059 // On large screens, we don't want to allow dialogs to just 1060 // stretch to fill the entire width of the screen to display 1061 // one line of text. First try doing the layout at a smaller 1062 // size to see if it will fit. 1063 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1064 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1065 int baseSize = 0; 1066 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1067 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1068 } 1069 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1070 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1071 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1072 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1073 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1074 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1075 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1076 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1077 goodMeasure = true; 1078 } else { 1079 // Didn't fit in that size... try expanding a bit. 1080 baseSize = (baseSize+desiredWindowWidth)/2; 1081 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1082 + baseSize); 1083 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1084 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1085 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1086 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1087 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1088 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1089 goodMeasure = true; 1090 } 1091 } 1092 } 1093 } 1094 1095 if (!goodMeasure) { 1096 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1097 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1098 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1099 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1100 windowSizeMayChange = true; 1101 } 1102 } 1103 1104 if (DBG) { 1105 System.out.println("======================================"); 1106 System.out.println("performTraversals -- after measure"); 1107 host.debug(); 1108 } 1109 1110 return windowSizeMayChange; 1111 } 1112 1113 private void performTraversals() { 1114 // cache mView since it is used so much below... 1115 final View host = mView; 1116 1117 if (DBG) { 1118 System.out.println("======================================"); 1119 System.out.println("performTraversals"); 1120 host.debug(); 1121 } 1122 1123 if (host == null || !mAdded) 1124 return; 1125 1126 mWillDrawSoon = true; 1127 boolean windowSizeMayChange = false; 1128 boolean newSurface = false; 1129 boolean surfaceChanged = false; 1130 WindowManager.LayoutParams lp = mWindowAttributes; 1131 1132 int desiredWindowWidth; 1133 int desiredWindowHeight; 1134 1135 final View.AttachInfo attachInfo = mAttachInfo; 1136 1137 final int viewVisibility = getHostVisibility(); 1138 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1139 || mNewSurfaceNeeded; 1140 1141 WindowManager.LayoutParams params = null; 1142 if (mWindowAttributesChanged) { 1143 mWindowAttributesChanged = false; 1144 surfaceChanged = true; 1145 params = lp; 1146 } 1147 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1148 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1149 params = lp; 1150 mFullRedrawNeeded = true; 1151 mLayoutRequested = true; 1152 if (mLastInCompatMode) { 1153 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1154 mLastInCompatMode = false; 1155 } else { 1156 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1157 mLastInCompatMode = true; 1158 } 1159 } 1160 1161 mWindowAttributesChangesFlag = 0; 1162 1163 Rect frame = mWinFrame; 1164 if (mFirst) { 1165 mFullRedrawNeeded = true; 1166 mLayoutRequested = true; 1167 1168 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1169 // NOTE -- system code, won't try to do compat mode. 1170 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1171 Point size = new Point(); 1172 disp.getRealSize(size); 1173 desiredWindowWidth = size.x; 1174 desiredWindowHeight = size.y; 1175 } else { 1176 DisplayMetrics packageMetrics = 1177 mView.getContext().getResources().getDisplayMetrics(); 1178 desiredWindowWidth = packageMetrics.widthPixels; 1179 desiredWindowHeight = packageMetrics.heightPixels; 1180 } 1181 1182 // For the very first time, tell the view hierarchy that it 1183 // is attached to the window. Note that at this point the surface 1184 // object is not initialized to its backing store, but soon it 1185 // will be (assuming the window is visible). 1186 attachInfo.mSurface = mSurface; 1187 // We used to use the following condition to choose 32 bits drawing caches: 1188 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1189 // However, windows are now always 32 bits by default, so choose 32 bits 1190 attachInfo.mUse32BitDrawingCache = true; 1191 attachInfo.mHasWindowFocus = false; 1192 attachInfo.mWindowVisibility = viewVisibility; 1193 attachInfo.mRecomputeGlobalAttributes = false; 1194 viewVisibilityChanged = false; 1195 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1196 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1197 host.dispatchAttachedToWindow(attachInfo, 0); 1198 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1199 host.fitSystemWindows(mFitSystemWindowsInsets); 1200 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1201 1202 } else { 1203 desiredWindowWidth = frame.width(); 1204 desiredWindowHeight = frame.height(); 1205 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1206 if (DEBUG_ORIENTATION) Log.v(TAG, 1207 "View " + host + " resized to: " + frame); 1208 mFullRedrawNeeded = true; 1209 mLayoutRequested = true; 1210 windowSizeMayChange = true; 1211 } 1212 } 1213 1214 if (viewVisibilityChanged) { 1215 attachInfo.mWindowVisibility = viewVisibility; 1216 host.dispatchWindowVisibilityChanged(viewVisibility); 1217 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1218 destroyHardwareResources(); 1219 } 1220 if (viewVisibility == View.GONE) { 1221 // After making a window gone, we will count it as being 1222 // shown for the first time the next time it gets focus. 1223 mHasHadWindowFocus = false; 1224 } 1225 } 1226 1227 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1228 getRunQueue().executeActions(attachInfo.mHandler); 1229 1230 boolean insetsChanged = false; 1231 1232 boolean layoutRequested = mLayoutRequested && !mStopped; 1233 if (layoutRequested) { 1234 1235 final Resources res = mView.getContext().getResources(); 1236 1237 if (mFirst) { 1238 // make sure touch mode code executes by setting cached value 1239 // to opposite of the added touch mode. 1240 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1241 ensureTouchModeLocally(mAddedTouchMode); 1242 } else { 1243 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1244 insetsChanged = true; 1245 } 1246 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1247 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1248 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1249 + mAttachInfo.mVisibleInsets); 1250 } 1251 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1252 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1253 windowSizeMayChange = true; 1254 1255 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1256 // NOTE -- system code, won't try to do compat mode. 1257 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1258 Point size = new Point(); 1259 disp.getRealSize(size); 1260 desiredWindowWidth = size.x; 1261 desiredWindowHeight = size.y; 1262 } else { 1263 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1264 desiredWindowWidth = packageMetrics.widthPixels; 1265 desiredWindowHeight = packageMetrics.heightPixels; 1266 } 1267 } 1268 } 1269 1270 // Ask host how big it wants to be 1271 windowSizeMayChange |= measureHierarchy(host, lp, res, 1272 desiredWindowWidth, desiredWindowHeight); 1273 } 1274 1275 if (collectViewAttributes()) { 1276 params = lp; 1277 } 1278 if (attachInfo.mForceReportNewAttributes) { 1279 attachInfo.mForceReportNewAttributes = false; 1280 params = lp; 1281 } 1282 1283 if (mFirst || attachInfo.mViewVisibilityChanged) { 1284 attachInfo.mViewVisibilityChanged = false; 1285 int resizeMode = mSoftInputMode & 1286 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1287 // If we are in auto resize mode, then we need to determine 1288 // what mode to use now. 1289 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1290 final int N = attachInfo.mScrollContainers.size(); 1291 for (int i=0; i<N; i++) { 1292 if (attachInfo.mScrollContainers.get(i).isShown()) { 1293 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1294 } 1295 } 1296 if (resizeMode == 0) { 1297 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1298 } 1299 if ((lp.softInputMode & 1300 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1301 lp.softInputMode = (lp.softInputMode & 1302 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1303 resizeMode; 1304 params = lp; 1305 } 1306 } 1307 } 1308 1309 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1310 if (!PixelFormat.formatHasAlpha(params.format)) { 1311 params.format = PixelFormat.TRANSLUCENT; 1312 } 1313 } 1314 1315 if (mFitSystemWindowsRequested) { 1316 mFitSystemWindowsRequested = false; 1317 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1318 host.fitSystemWindows(mFitSystemWindowsInsets); 1319 if (mLayoutRequested) { 1320 // Short-circuit catching a new layout request here, so 1321 // we don't need to go through two layout passes when things 1322 // change due to fitting system windows, which can happen a lot. 1323 windowSizeMayChange |= measureHierarchy(host, lp, 1324 mView.getContext().getResources(), 1325 desiredWindowWidth, desiredWindowHeight); 1326 } 1327 } 1328 1329 if (layoutRequested) { 1330 // Clear this now, so that if anything requests a layout in the 1331 // rest of this function we will catch it and re-run a full 1332 // layout pass. 1333 mLayoutRequested = false; 1334 } 1335 1336 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1337 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1338 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1339 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1340 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1341 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1342 1343 final boolean computesInternalInsets = 1344 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1345 1346 boolean insetsPending = false; 1347 int relayoutResult = 0; 1348 1349 if (mFirst || windowShouldResize || insetsChanged || 1350 viewVisibilityChanged || params != null) { 1351 1352 if (viewVisibility == View.VISIBLE) { 1353 // If this window is giving internal insets to the window 1354 // manager, and it is being added or changing its visibility, 1355 // then we want to first give the window manager "fake" 1356 // insets to cause it to effectively ignore the content of 1357 // the window during layout. This avoids it briefly causing 1358 // other windows to resize/move based on the raw frame of the 1359 // window, waiting until we can finish laying out this window 1360 // and get back to the window manager with the ultimately 1361 // computed insets. 1362 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1363 } 1364 1365 if (mSurfaceHolder != null) { 1366 mSurfaceHolder.mSurfaceLock.lock(); 1367 mDrawingAllowed = true; 1368 } 1369 1370 boolean hwInitialized = false; 1371 boolean contentInsetsChanged = false; 1372 boolean visibleInsetsChanged; 1373 boolean hadSurface = mSurface.isValid(); 1374 1375 try { 1376 if (DEBUG_LAYOUT) { 1377 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1378 host.getMeasuredHeight() + ", params=" + params); 1379 } 1380 1381 final int surfaceGenerationId = mSurface.getGenerationId(); 1382 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1383 1384 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1385 + " content=" + mPendingContentInsets.toShortString() 1386 + " visible=" + mPendingVisibleInsets.toShortString() 1387 + " surface=" + mSurface); 1388 1389 if (mPendingConfiguration.seq != 0) { 1390 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1391 + mPendingConfiguration); 1392 updateConfiguration(mPendingConfiguration, !mFirst); 1393 mPendingConfiguration.seq = 0; 1394 } 1395 1396 contentInsetsChanged = !mPendingContentInsets.equals( 1397 mAttachInfo.mContentInsets); 1398 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1399 mAttachInfo.mVisibleInsets); 1400 if (contentInsetsChanged) { 1401 if (mWidth > 0 && mHeight > 0 && lp != null && 1402 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1403 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1404 mSurface != null && mSurface.isValid() && 1405 !mAttachInfo.mTurnOffWindowResizeAnim && 1406 mAttachInfo.mHardwareRenderer != null && 1407 mAttachInfo.mHardwareRenderer.isEnabled() && 1408 mAttachInfo.mHardwareRenderer.validate() && 1409 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1410 1411 disposeResizeBuffer(); 1412 1413 boolean completed = false; 1414 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1415 HardwareCanvas layerCanvas = null; 1416 try { 1417 if (mResizeBuffer == null) { 1418 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1419 mWidth, mHeight, false); 1420 } else if (mResizeBuffer.getWidth() != mWidth || 1421 mResizeBuffer.getHeight() != mHeight) { 1422 mResizeBuffer.resize(mWidth, mHeight); 1423 } 1424 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1425 layerCanvas.setViewport(mWidth, mHeight); 1426 layerCanvas.onPreDraw(null); 1427 final int restoreCount = layerCanvas.save(); 1428 1429 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1430 1431 int yoff; 1432 final boolean scrolling = mScroller != null 1433 && mScroller.computeScrollOffset(); 1434 if (scrolling) { 1435 yoff = mScroller.getCurrY(); 1436 mScroller.abortAnimation(); 1437 } else { 1438 yoff = mScrollY; 1439 } 1440 1441 layerCanvas.translate(0, -yoff); 1442 if (mTranslator != null) { 1443 mTranslator.translateCanvas(layerCanvas); 1444 } 1445 1446 mView.draw(layerCanvas); 1447 1448 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1449 1450 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1451 mResizeBufferDuration = mView.getResources().getInteger( 1452 com.android.internal.R.integer.config_mediumAnimTime); 1453 completed = true; 1454 1455 layerCanvas.restoreToCount(restoreCount); 1456 } catch (OutOfMemoryError e) { 1457 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1458 } finally { 1459 if (layerCanvas != null) { 1460 layerCanvas.onPostDraw(); 1461 } 1462 if (mResizeBuffer != null) { 1463 mResizeBuffer.end(hwRendererCanvas); 1464 if (!completed) { 1465 mResizeBuffer.destroy(); 1466 mResizeBuffer = null; 1467 } 1468 } 1469 } 1470 } 1471 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1472 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1473 + mAttachInfo.mContentInsets); 1474 } 1475 if (contentInsetsChanged || mLastSystemUiVisibility != 1476 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1477 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1478 mFitSystemWindowsRequested = false; 1479 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1480 host.fitSystemWindows(mFitSystemWindowsInsets); 1481 } 1482 if (visibleInsetsChanged) { 1483 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1484 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1485 + mAttachInfo.mVisibleInsets); 1486 } 1487 1488 if (!hadSurface) { 1489 if (mSurface.isValid()) { 1490 // If we are creating a new surface, then we need to 1491 // completely redraw it. Also, when we get to the 1492 // point of drawing it we will hold off and schedule 1493 // a new traversal instead. This is so we can tell the 1494 // window manager about all of the windows being displayed 1495 // before actually drawing them, so it can display then 1496 // all at once. 1497 newSurface = true; 1498 mFullRedrawNeeded = true; 1499 mPreviousTransparentRegion.setEmpty(); 1500 1501 if (mAttachInfo.mHardwareRenderer != null) { 1502 try { 1503 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1504 mHolder.getSurface()); 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.getSurface()); 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.getSurface()); 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 } else { 1681 // Not the first pass and no window/insets/visibility change but the window 1682 // may have moved and we need check that and if so to update the left and right 1683 // in the attach info. We translate only the window frame since on window move 1684 // the window manager tells us only for the new frame but the insets are the 1685 // same and we do not want to translate them more than once. 1686 1687 // TODO: Well, we are checking whether the frame has changed similarly 1688 // to how this is done for the insets. This is however incorrect since 1689 // the insets and the frame are translated. For example, the old frame 1690 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1691 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1692 // true since we are comparing a not translated value to a translated one. 1693 // This scenario is rare but we may want to fix that. 1694 1695 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1696 || attachInfo.mWindowTop != frame.top); 1697 if (windowMoved) { 1698 if (mTranslator != null) { 1699 mTranslator.translateRectInScreenToAppWinFrame(frame); 1700 } 1701 attachInfo.mWindowLeft = frame.left; 1702 attachInfo.mWindowTop = frame.top; 1703 } 1704 } 1705 1706 final boolean didLayout = layoutRequested && !mStopped; 1707 boolean triggerGlobalLayoutListener = didLayout 1708 || attachInfo.mRecomputeGlobalAttributes; 1709 if (didLayout) { 1710 performLayout(); 1711 1712 // By this point all views have been sized and positionned 1713 // We can compute the transparent area 1714 1715 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1716 // start out transparent 1717 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1718 host.getLocationInWindow(mTmpLocation); 1719 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1720 mTmpLocation[0] + host.mRight - host.mLeft, 1721 mTmpLocation[1] + host.mBottom - host.mTop); 1722 1723 host.gatherTransparentRegion(mTransparentRegion); 1724 if (mTranslator != null) { 1725 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1726 } 1727 1728 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1729 mPreviousTransparentRegion.set(mTransparentRegion); 1730 // reconfigure window manager 1731 try { 1732 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1733 } catch (RemoteException e) { 1734 } 1735 } 1736 } 1737 1738 if (DBG) { 1739 System.out.println("======================================"); 1740 System.out.println("performTraversals -- after setFrame"); 1741 host.debug(); 1742 } 1743 } 1744 1745 if (triggerGlobalLayoutListener) { 1746 attachInfo.mRecomputeGlobalAttributes = false; 1747 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1748 1749 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1750 postSendWindowContentChangedCallback(mView); 1751 } 1752 } 1753 1754 if (computesInternalInsets) { 1755 // Clear the original insets. 1756 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1757 insets.reset(); 1758 1759 // Compute new insets in place. 1760 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1761 1762 // Tell the window manager. 1763 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1764 mLastGivenInsets.set(insets); 1765 1766 // Translate insets to screen coordinates if needed. 1767 final Rect contentInsets; 1768 final Rect visibleInsets; 1769 final Region touchableRegion; 1770 if (mTranslator != null) { 1771 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1772 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1773 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1774 } else { 1775 contentInsets = insets.contentInsets; 1776 visibleInsets = insets.visibleInsets; 1777 touchableRegion = insets.touchableRegion; 1778 } 1779 1780 try { 1781 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1782 contentInsets, visibleInsets, touchableRegion); 1783 } catch (RemoteException e) { 1784 } 1785 } 1786 } 1787 1788 boolean skipDraw = false; 1789 1790 if (mFirst) { 1791 // handle first focus request 1792 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1793 + mView.hasFocus()); 1794 if (mView != null) { 1795 if (!mView.hasFocus()) { 1796 mView.requestFocus(View.FOCUS_FORWARD); 1797 mFocusedView = mRealFocusedView = mView.findFocus(); 1798 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1799 + mFocusedView); 1800 } else { 1801 mRealFocusedView = mView.findFocus(); 1802 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1803 + mRealFocusedView); 1804 } 1805 } 1806 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1807 // The first time we relayout the window, if the system is 1808 // doing window animations, we want to hold of on any future 1809 // draws until the animation is done. 1810 mWindowsAnimating = true; 1811 } 1812 } else if (mWindowsAnimating) { 1813 skipDraw = true; 1814 } 1815 1816 mFirst = false; 1817 mWillDrawSoon = false; 1818 mNewSurfaceNeeded = false; 1819 mViewVisibility = viewVisibility; 1820 1821 if (mAttachInfo.mHasWindowFocus) { 1822 final boolean imTarget = WindowManager.LayoutParams 1823 .mayUseInputMethod(mWindowAttributes.flags); 1824 if (imTarget != mLastWasImTarget) { 1825 mLastWasImTarget = imTarget; 1826 InputMethodManager imm = InputMethodManager.peekInstance(); 1827 if (imm != null && imTarget) { 1828 imm.startGettingWindowFocus(mView); 1829 imm.onWindowFocus(mView, mView.findFocus(), 1830 mWindowAttributes.softInputMode, 1831 !mHasHadWindowFocus, mWindowAttributes.flags); 1832 } 1833 } 1834 } 1835 1836 // Remember if we must report the next draw. 1837 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1838 mReportNextDraw = true; 1839 } 1840 1841 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1842 viewVisibility != View.VISIBLE; 1843 1844 if (!cancelDraw && !newSurface) { 1845 if (!skipDraw || mReportNextDraw) { 1846 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1847 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1848 mPendingTransitions.get(i).startChangingAnimations(); 1849 } 1850 mPendingTransitions.clear(); 1851 } 1852 1853 performDraw(); 1854 } 1855 } else { 1856 if (viewVisibility == View.VISIBLE) { 1857 // Try again 1858 scheduleTraversals(); 1859 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1860 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1861 mPendingTransitions.get(i).endChangingAnimations(); 1862 } 1863 mPendingTransitions.clear(); 1864 } 1865 } 1866 } 1867 1868 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1869 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1870 try { 1871 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1872 } finally { 1873 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1874 } 1875 } 1876 1877 private void performLayout() { 1878 mLayoutRequested = false; 1879 mScrollMayChange = true; 1880 1881 final View host = mView; 1882 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1883 Log.v(TAG, "Laying out " + host + " to (" + 1884 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1885 } 1886 1887 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1888 try { 1889 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1890 } finally { 1891 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1892 } 1893 } 1894 1895 public void requestTransparentRegion(View child) { 1896 // the test below should not fail unless someone is messing with us 1897 checkThread(); 1898 if (mView == child) { 1899 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1900 // Need to make sure we re-evaluate the window attributes next 1901 // time around, to ensure the window has the correct format. 1902 mWindowAttributesChanged = true; 1903 mWindowAttributesChangesFlag = 0; 1904 requestLayout(); 1905 } 1906 } 1907 1908 /** 1909 * Figures out the measure spec for the root view in a window based on it's 1910 * layout params. 1911 * 1912 * @param windowSize 1913 * The available width or height of the window 1914 * 1915 * @param rootDimension 1916 * The layout params for one dimension (width or height) of the 1917 * window. 1918 * 1919 * @return The measure spec to use to measure the root view. 1920 */ 1921 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1922 int measureSpec; 1923 switch (rootDimension) { 1924 1925 case ViewGroup.LayoutParams.MATCH_PARENT: 1926 // Window can't resize. Force root view to be windowSize. 1927 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1928 break; 1929 case ViewGroup.LayoutParams.WRAP_CONTENT: 1930 // Window can resize. Set max size for root view. 1931 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1932 break; 1933 default: 1934 // Window wants to be an exact size. Force root view to be that size. 1935 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1936 break; 1937 } 1938 return measureSpec; 1939 } 1940 1941 int mHardwareYOffset; 1942 int mResizeAlpha; 1943 final Paint mResizePaint = new Paint(); 1944 1945 public void onHardwarePreDraw(HardwareCanvas canvas) { 1946 canvas.translate(0, -mHardwareYOffset); 1947 } 1948 1949 public void onHardwarePostDraw(HardwareCanvas canvas) { 1950 if (mResizeBuffer != null) { 1951 mResizePaint.setAlpha(mResizeAlpha); 1952 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1953 } 1954 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1955 } 1956 1957 /** 1958 * @hide 1959 */ 1960 void outputDisplayList(View view) { 1961 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1962 DisplayList displayList = view.getDisplayList(); 1963 if (displayList != null) { 1964 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1965 } 1966 } 1967 } 1968 1969 /** 1970 * @see #PROPERTY_PROFILE_RENDERING 1971 */ 1972 private void profileRendering(boolean enabled) { 1973 if (mProfileRendering) { 1974 mRenderProfilingEnabled = enabled; 1975 if (mRenderProfiler == null) { 1976 mRenderProfiler = new Thread(new Runnable() { 1977 @Override 1978 public void run() { 1979 Log.d(TAG, "Starting profiling thread"); 1980 while (mRenderProfilingEnabled) { 1981 mAttachInfo.mHandler.post(new Runnable() { 1982 @Override 1983 public void run() { 1984 mDirty.set(0, 0, mWidth, mHeight); 1985 scheduleTraversals(); 1986 } 1987 }); 1988 try { 1989 // TODO: This should use vsync when we get an API 1990 Thread.sleep(15); 1991 } catch (InterruptedException e) { 1992 Log.d(TAG, "Exiting profiling thread"); 1993 } 1994 } 1995 } 1996 }, "Rendering Profiler"); 1997 mRenderProfiler.start(); 1998 } else { 1999 mRenderProfiler.interrupt(); 2000 mRenderProfiler = null; 2001 } 2002 } 2003 } 2004 2005 /** 2006 * Called from draw() when DEBUG_FPS is enabled 2007 */ 2008 private void trackFPS() { 2009 // Tracks frames per second drawn. First value in a series of draws may be bogus 2010 // because it down not account for the intervening idle time 2011 long nowTime = System.currentTimeMillis(); 2012 if (mFpsStartTime < 0) { 2013 mFpsStartTime = mFpsPrevTime = nowTime; 2014 mFpsNumFrames = 0; 2015 } else { 2016 ++mFpsNumFrames; 2017 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2018 long frameTime = nowTime - mFpsPrevTime; 2019 long totalTime = nowTime - mFpsStartTime; 2020 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2021 mFpsPrevTime = nowTime; 2022 if (totalTime > 1000) { 2023 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2024 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2025 mFpsStartTime = nowTime; 2026 mFpsNumFrames = 0; 2027 } 2028 } 2029 } 2030 2031 private void performDraw() { 2032 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2033 return; 2034 } 2035 2036 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2037 mFullRedrawNeeded = false; 2038 2039 mIsDrawing = true; 2040 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2041 try { 2042 draw(fullRedrawNeeded); 2043 } finally { 2044 mIsDrawing = false; 2045 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2046 } 2047 2048 if (mReportNextDraw) { 2049 mReportNextDraw = false; 2050 2051 if (LOCAL_LOGV) { 2052 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2053 } 2054 if (mSurfaceHolder != null && mSurface.isValid()) { 2055 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2056 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2057 if (callbacks != null) { 2058 for (SurfaceHolder.Callback c : callbacks) { 2059 if (c instanceof SurfaceHolder.Callback2) { 2060 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2061 mSurfaceHolder); 2062 } 2063 } 2064 } 2065 } 2066 try { 2067 sWindowSession.finishDrawing(mWindow); 2068 } catch (RemoteException e) { 2069 } 2070 } 2071 } 2072 2073 private void draw(boolean fullRedrawNeeded) { 2074 Surface surface = mSurface; 2075 if (surface == null || !surface.isValid()) { 2076 return; 2077 } 2078 2079 if (DEBUG_FPS) { 2080 trackFPS(); 2081 } 2082 2083 if (!sFirstDrawComplete) { 2084 synchronized (sFirstDrawHandlers) { 2085 sFirstDrawComplete = true; 2086 final int count = sFirstDrawHandlers.size(); 2087 for (int i = 0; i< count; i++) { 2088 mHandler.post(sFirstDrawHandlers.get(i)); 2089 } 2090 } 2091 } 2092 2093 scrollToRectOrFocus(null, false); 2094 2095 final AttachInfo attachInfo = mAttachInfo; 2096 if (attachInfo.mViewScrollChanged) { 2097 attachInfo.mViewScrollChanged = false; 2098 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2099 } 2100 2101 int yoff; 2102 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2103 if (animating) { 2104 yoff = mScroller.getCurrY(); 2105 } else { 2106 yoff = mScrollY; 2107 } 2108 if (mCurScrollY != yoff) { 2109 mCurScrollY = yoff; 2110 fullRedrawNeeded = true; 2111 } 2112 2113 final float appScale = attachInfo.mApplicationScale; 2114 final boolean scalingRequired = attachInfo.mScalingRequired; 2115 2116 int resizeAlpha = 0; 2117 if (mResizeBuffer != null) { 2118 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2119 if (deltaTime < mResizeBufferDuration) { 2120 float amt = deltaTime/(float) mResizeBufferDuration; 2121 amt = mResizeInterpolator.getInterpolation(amt); 2122 animating = true; 2123 resizeAlpha = 255 - (int)(amt*255); 2124 } else { 2125 disposeResizeBuffer(); 2126 } 2127 } 2128 2129 final Rect dirty = mDirty; 2130 if (mSurfaceHolder != null) { 2131 // The app owns the surface, we won't draw. 2132 dirty.setEmpty(); 2133 if (animating) { 2134 if (mScroller != null) { 2135 mScroller.abortAnimation(); 2136 } 2137 disposeResizeBuffer(); 2138 } 2139 return; 2140 } 2141 2142 if (fullRedrawNeeded) { 2143 attachInfo.mIgnoreDirtyState = true; 2144 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2145 } 2146 2147 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2148 Log.v(TAG, "Draw " + mView + "/" 2149 + mWindowAttributes.getTitle() 2150 + ": dirty={" + dirty.left + "," + dirty.top 2151 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2152 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2153 appScale + ", width=" + mWidth + ", height=" + mHeight); 2154 } 2155 2156 attachInfo.mTreeObserver.dispatchOnDraw(); 2157 2158 if (!dirty.isEmpty() || mIsAnimating) { 2159 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2160 // Draw with hardware renderer. 2161 mIsAnimating = false; 2162 mHardwareYOffset = yoff; 2163 mResizeAlpha = resizeAlpha; 2164 2165 mCurrentDirty.set(dirty); 2166 mCurrentDirty.union(mPreviousDirty); 2167 mPreviousDirty.set(dirty); 2168 dirty.setEmpty(); 2169 2170 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2171 animating ? null : mCurrentDirty)) { 2172 mPreviousDirty.set(0, 0, mWidth, mHeight); 2173 } 2174 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2175 return; 2176 } 2177 } 2178 2179 if (animating) { 2180 mFullRedrawNeeded = true; 2181 scheduleTraversals(); 2182 } 2183 } 2184 2185 /** 2186 * @return true if drawing was succesfull, false if an error occurred 2187 */ 2188 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2189 boolean scalingRequired, Rect dirty) { 2190 2191 // If we get here with a disabled & requested hardware renderer, something went 2192 // wrong (an invalidate posted right before we destroyed the hardware surface 2193 // for instance) so we should just bail out. Locking the surface with software 2194 // rendering at this point would lock it forever and prevent hardware renderer 2195 // from doing its job when it comes back. 2196 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2197 attachInfo.mHardwareRenderer.isRequested()) { 2198 mFullRedrawNeeded = true; 2199 scheduleTraversals(); 2200 return false; 2201 } 2202 2203 // Draw with software renderer. 2204 Canvas canvas; 2205 try { 2206 int left = dirty.left; 2207 int top = dirty.top; 2208 int right = dirty.right; 2209 int bottom = dirty.bottom; 2210 2211 canvas = mSurface.lockCanvas(dirty); 2212 2213 if (left != dirty.left || top != dirty.top || right != dirty.right || 2214 bottom != dirty.bottom) { 2215 attachInfo.mIgnoreDirtyState = true; 2216 } 2217 2218 // TODO: Do this in native 2219 canvas.setDensity(mDensity); 2220 } catch (Surface.OutOfResourcesException e) { 2221 Log.e(TAG, "OutOfResourcesException locking surface", e); 2222 try { 2223 if (!sWindowSession.outOfMemory(mWindow)) { 2224 Slog.w(TAG, "No processes killed for memory; killing self"); 2225 Process.killProcess(Process.myPid()); 2226 } 2227 } catch (RemoteException ex) { 2228 } 2229 mLayoutRequested = true; // ask wm for a new surface next time. 2230 return false; 2231 } catch (IllegalArgumentException e) { 2232 Log.e(TAG, "Could not lock surface", e); 2233 // Don't assume this is due to out of memory, it could be 2234 // something else, and if it is something else then we could 2235 // kill stuff (or ourself) for no reason. 2236 mLayoutRequested = true; // ask wm for a new surface next time. 2237 return false; 2238 } 2239 2240 try { 2241 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2242 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2243 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2244 //canvas.drawARGB(255, 255, 0, 0); 2245 } 2246 2247 // If this bitmap's format includes an alpha channel, we 2248 // need to clear it before drawing so that the child will 2249 // properly re-composite its drawing on a transparent 2250 // background. This automatically respects the clip/dirty region 2251 // or 2252 // If we are applying an offset, we need to clear the area 2253 // where the offset doesn't appear to avoid having garbage 2254 // left in the blank areas. 2255 if (!canvas.isOpaque() || yoff != 0) { 2256 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2257 } 2258 2259 dirty.setEmpty(); 2260 mIsAnimating = false; 2261 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2262 mView.mPrivateFlags |= View.DRAWN; 2263 2264 if (DEBUG_DRAW) { 2265 Context cxt = mView.getContext(); 2266 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2267 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2268 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2269 } 2270 try { 2271 canvas.translate(0, -yoff); 2272 if (mTranslator != null) { 2273 mTranslator.translateCanvas(canvas); 2274 } 2275 canvas.setScreenDensity(scalingRequired 2276 ? DisplayMetrics.DENSITY_DEVICE : 0); 2277 attachInfo.mSetIgnoreDirtyState = false; 2278 2279 mView.draw(canvas); 2280 2281 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2282 } finally { 2283 if (!attachInfo.mSetIgnoreDirtyState) { 2284 // Only clear the flag if it was not set during the mView.draw() call 2285 attachInfo.mIgnoreDirtyState = false; 2286 } 2287 } 2288 } finally { 2289 try { 2290 surface.unlockCanvasAndPost(canvas); 2291 } catch (IllegalArgumentException e) { 2292 Log.e(TAG, "Could not unlock surface", e); 2293 mLayoutRequested = true; // ask wm for a new surface next time. 2294 //noinspection ReturnInsideFinallyBlock 2295 return false; 2296 } 2297 2298 if (LOCAL_LOGV) { 2299 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2300 } 2301 } 2302 return true; 2303 } 2304 2305 /** 2306 * We want to draw a highlight around the current accessibility focused. 2307 * Since adding a style for all possible view is not a viable option we 2308 * have this specialized drawing method. 2309 * 2310 * Note: We are doing this here to be able to draw the highlight for 2311 * virtual views in addition to real ones. 2312 * 2313 * @param canvas The canvas on which to draw. 2314 */ 2315 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2316 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2317 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2318 return; 2319 } 2320 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2321 return; 2322 } 2323 Drawable drawable = getAccessibilityFocusedDrawable(); 2324 if (drawable == null) { 2325 return; 2326 } 2327 AccessibilityNodeProvider provider = 2328 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2329 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2330 if (provider == null) { 2331 mAccessibilityFocusedHost.getDrawingRect(bounds); 2332 if (mView instanceof ViewGroup) { 2333 ViewGroup viewGroup = (ViewGroup) mView; 2334 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2335 } 2336 } else { 2337 if (mAccessibilityFocusedVirtualView == null) { 2338 return; 2339 } 2340 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2341 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2342 } 2343 drawable.setBounds(bounds); 2344 drawable.draw(canvas); 2345 } 2346 2347 private Drawable getAccessibilityFocusedDrawable() { 2348 if (mAttachInfo != null) { 2349 // Lazily load the accessibility focus drawable. 2350 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2351 TypedValue value = new TypedValue(); 2352 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2353 R.attr.accessibilityFocusedDrawable, value, true); 2354 if (resolved) { 2355 mAttachInfo.mAccessibilityFocusDrawable = 2356 mView.mContext.getResources().getDrawable(value.resourceId); 2357 } 2358 } 2359 return mAttachInfo.mAccessibilityFocusDrawable; 2360 } 2361 return null; 2362 } 2363 2364 void invalidateDisplayLists() { 2365 final ArrayList<DisplayList> displayLists = mDisplayLists; 2366 final int count = displayLists.size(); 2367 2368 for (int i = 0; i < count; i++) { 2369 final DisplayList displayList = displayLists.get(i); 2370 displayList.invalidate(); 2371 displayList.clear(); 2372 } 2373 2374 displayLists.clear(); 2375 } 2376 2377 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2378 final View.AttachInfo attachInfo = mAttachInfo; 2379 final Rect ci = attachInfo.mContentInsets; 2380 final Rect vi = attachInfo.mVisibleInsets; 2381 int scrollY = 0; 2382 boolean handled = false; 2383 2384 if (vi.left > ci.left || vi.top > ci.top 2385 || vi.right > ci.right || vi.bottom > ci.bottom) { 2386 // We'll assume that we aren't going to change the scroll 2387 // offset, since we want to avoid that unless it is actually 2388 // going to make the focus visible... otherwise we scroll 2389 // all over the place. 2390 scrollY = mScrollY; 2391 // We can be called for two different situations: during a draw, 2392 // to update the scroll position if the focus has changed (in which 2393 // case 'rectangle' is null), or in response to a 2394 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2395 // is non-null and we just want to scroll to whatever that 2396 // rectangle is). 2397 View focus = mRealFocusedView; 2398 2399 // When in touch mode, focus points to the previously focused view, 2400 // which may have been removed from the view hierarchy. The following 2401 // line checks whether the view is still in our hierarchy. 2402 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2403 mRealFocusedView = null; 2404 return false; 2405 } 2406 2407 if (focus != mLastScrolledFocus) { 2408 // If the focus has changed, then ignore any requests to scroll 2409 // to a rectangle; first we want to make sure the entire focus 2410 // view is visible. 2411 rectangle = null; 2412 } 2413 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2414 + " rectangle=" + rectangle + " ci=" + ci 2415 + " vi=" + vi); 2416 if (focus == mLastScrolledFocus && !mScrollMayChange 2417 && rectangle == null) { 2418 // Optimization: if the focus hasn't changed since last 2419 // time, and no layout has happened, then just leave things 2420 // as they are. 2421 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2422 + mScrollY + " vi=" + vi.toShortString()); 2423 } else if (focus != null) { 2424 // We need to determine if the currently focused view is 2425 // within the visible part of the window and, if not, apply 2426 // a pan so it can be seen. 2427 mLastScrolledFocus = focus; 2428 mScrollMayChange = false; 2429 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2430 // Try to find the rectangle from the focus view. 2431 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2432 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2433 + mView.getWidth() + " h=" + mView.getHeight() 2434 + " ci=" + ci.toShortString() 2435 + " vi=" + vi.toShortString()); 2436 if (rectangle == null) { 2437 focus.getFocusedRect(mTempRect); 2438 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2439 + ": focusRect=" + mTempRect.toShortString()); 2440 if (mView instanceof ViewGroup) { 2441 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2442 focus, mTempRect); 2443 } 2444 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2445 "Focus in window: focusRect=" 2446 + mTempRect.toShortString() 2447 + " visRect=" + mVisRect.toShortString()); 2448 } else { 2449 mTempRect.set(rectangle); 2450 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2451 "Request scroll to rect: " 2452 + mTempRect.toShortString() 2453 + " visRect=" + mVisRect.toShortString()); 2454 } 2455 if (mTempRect.intersect(mVisRect)) { 2456 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2457 "Focus window visible rect: " 2458 + mTempRect.toShortString()); 2459 if (mTempRect.height() > 2460 (mView.getHeight()-vi.top-vi.bottom)) { 2461 // If the focus simply is not going to fit, then 2462 // best is probably just to leave things as-is. 2463 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2464 "Too tall; leaving scrollY=" + scrollY); 2465 } else if ((mTempRect.top-scrollY) < vi.top) { 2466 scrollY -= vi.top - (mTempRect.top-scrollY); 2467 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2468 "Top covered; scrollY=" + scrollY); 2469 } else if ((mTempRect.bottom-scrollY) 2470 > (mView.getHeight()-vi.bottom)) { 2471 scrollY += (mTempRect.bottom-scrollY) 2472 - (mView.getHeight()-vi.bottom); 2473 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2474 "Bottom covered; scrollY=" + scrollY); 2475 } 2476 handled = true; 2477 } 2478 } 2479 } 2480 } 2481 2482 if (scrollY != mScrollY) { 2483 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2484 + mScrollY + " , new=" + scrollY); 2485 if (!immediate && mResizeBuffer == null) { 2486 if (mScroller == null) { 2487 mScroller = new Scroller(mView.getContext()); 2488 } 2489 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2490 } else if (mScroller != null) { 2491 mScroller.abortAnimation(); 2492 } 2493 mScrollY = scrollY; 2494 } 2495 2496 return handled; 2497 } 2498 2499 /** 2500 * @hide 2501 */ 2502 public View getAccessibilityFocusedHost() { 2503 return mAccessibilityFocusedHost; 2504 } 2505 2506 /** 2507 * @hide 2508 */ 2509 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2510 return mAccessibilityFocusedVirtualView; 2511 } 2512 2513 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2514 // If we have a virtual view with accessibility focus we need 2515 // to clear the focus and invalidate the virtual view bounds. 2516 if (mAccessibilityFocusedVirtualView != null) { 2517 2518 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2519 View focusHost = mAccessibilityFocusedHost; 2520 focusHost.clearAccessibilityFocusNoCallbacks(); 2521 2522 // Wipe the state of the current accessibility focus since 2523 // the call into the provider to clear accessibility focus 2524 // will fire an accessibility event which will end up calling 2525 // this method and we want to have clean state when this 2526 // invocation happens. 2527 mAccessibilityFocusedHost = null; 2528 mAccessibilityFocusedVirtualView = null; 2529 2530 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2531 if (provider != null) { 2532 // Invalidate the area of the cleared accessibility focus. 2533 focusNode.getBoundsInParent(mTempRect); 2534 focusHost.invalidate(mTempRect); 2535 // Clear accessibility focus in the virtual node. 2536 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2537 focusNode.getSourceNodeId()); 2538 provider.performAction(virtualNodeId, 2539 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2540 } 2541 focusNode.recycle(); 2542 } 2543 if (mAccessibilityFocusedHost != null) { 2544 // Clear accessibility focus in the view. 2545 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2546 } 2547 2548 // Set the new focus host and node. 2549 mAccessibilityFocusedHost = view; 2550 mAccessibilityFocusedVirtualView = node; 2551 } 2552 2553 public void requestChildFocus(View child, View focused) { 2554 checkThread(); 2555 2556 if (DEBUG_INPUT_RESIZE) { 2557 Log.v(TAG, "Request child focus: focus now " + focused); 2558 } 2559 2560 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2561 scheduleTraversals(); 2562 2563 mFocusedView = mRealFocusedView = focused; 2564 } 2565 2566 public void clearChildFocus(View child) { 2567 checkThread(); 2568 2569 if (DEBUG_INPUT_RESIZE) { 2570 Log.v(TAG, "Clearing child focus"); 2571 } 2572 2573 mOldFocusedView = mFocusedView; 2574 2575 // Invoke the listener only if there is no view to take focus 2576 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2577 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2578 } 2579 2580 mFocusedView = mRealFocusedView = null; 2581 } 2582 2583 @Override 2584 public ViewParent getParentForAccessibility() { 2585 return null; 2586 } 2587 2588 public void focusableViewAvailable(View v) { 2589 checkThread(); 2590 if (mView != null) { 2591 if (!mView.hasFocus()) { 2592 v.requestFocus(); 2593 } else { 2594 // the one case where will transfer focus away from the current one 2595 // is if the current view is a view group that prefers to give focus 2596 // to its children first AND the view is a descendant of it. 2597 mFocusedView = mView.findFocus(); 2598 boolean descendantsHaveDibsOnFocus = 2599 (mFocusedView instanceof ViewGroup) && 2600 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2601 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2602 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2603 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2604 v.requestFocus(); 2605 } 2606 } 2607 } 2608 } 2609 2610 public void recomputeViewAttributes(View child) { 2611 checkThread(); 2612 if (mView == child) { 2613 mAttachInfo.mRecomputeGlobalAttributes = true; 2614 if (!mWillDrawSoon) { 2615 scheduleTraversals(); 2616 } 2617 } 2618 } 2619 2620 void dispatchDetachedFromWindow() { 2621 if (mView != null && mView.mAttachInfo != null) { 2622 if (mAttachInfo.mHardwareRenderer != null && 2623 mAttachInfo.mHardwareRenderer.isEnabled()) { 2624 mAttachInfo.mHardwareRenderer.validate(); 2625 } 2626 mView.dispatchDetachedFromWindow(); 2627 } 2628 2629 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2630 mAccessibilityManager.removeAccessibilityStateChangeListener( 2631 mAccessibilityInteractionConnectionManager); 2632 removeSendWindowContentChangedCallback(); 2633 2634 destroyHardwareRenderer(); 2635 2636 setAccessibilityFocus(null, null); 2637 2638 mView = null; 2639 mAttachInfo.mRootView = null; 2640 mAttachInfo.mSurface = null; 2641 2642 mSurface.release(); 2643 2644 if (mInputQueueCallback != null && mInputQueue != null) { 2645 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2646 mInputQueueCallback = null; 2647 mInputQueue = null; 2648 } else if (mInputEventReceiver != null) { 2649 mInputEventReceiver.dispose(); 2650 mInputEventReceiver = null; 2651 } 2652 try { 2653 sWindowSession.remove(mWindow); 2654 } catch (RemoteException e) { 2655 } 2656 2657 // Dispose the input channel after removing the window so the Window Manager 2658 // doesn't interpret the input channel being closed as an abnormal termination. 2659 if (mInputChannel != null) { 2660 mInputChannel.dispose(); 2661 mInputChannel = null; 2662 } 2663 2664 unscheduleTraversals(); 2665 } 2666 2667 void updateConfiguration(Configuration config, boolean force) { 2668 if (DEBUG_CONFIGURATION) Log.v(TAG, 2669 "Applying new config to window " 2670 + mWindowAttributes.getTitle() 2671 + ": " + config); 2672 2673 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2674 if (ci != null) { 2675 config = new Configuration(config); 2676 ci.applyToConfiguration(config); 2677 } 2678 2679 synchronized (sConfigCallbacks) { 2680 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2681 sConfigCallbacks.get(i).onConfigurationChanged(config); 2682 } 2683 } 2684 if (mView != null) { 2685 // At this point the resources have been updated to 2686 // have the most recent config, whatever that is. Use 2687 // the on in them which may be newer. 2688 config = mView.getResources().getConfiguration(); 2689 if (force || mLastConfiguration.diff(config) != 0) { 2690 mLastConfiguration.setTo(config); 2691 mView.dispatchConfigurationChanged(config); 2692 } 2693 } 2694 } 2695 2696 /** 2697 * Return true if child is an ancestor of parent, (or equal to the parent). 2698 */ 2699 public static boolean isViewDescendantOf(View child, View parent) { 2700 if (child == parent) { 2701 return true; 2702 } 2703 2704 final ViewParent theParent = child.getParent(); 2705 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2706 } 2707 2708 private static void forceLayout(View view) { 2709 view.forceLayout(); 2710 if (view instanceof ViewGroup) { 2711 ViewGroup group = (ViewGroup) view; 2712 final int count = group.getChildCount(); 2713 for (int i = 0; i < count; i++) { 2714 forceLayout(group.getChildAt(i)); 2715 } 2716 } 2717 } 2718 2719 private final static int MSG_INVALIDATE = 1; 2720 private final static int MSG_INVALIDATE_RECT = 2; 2721 private final static int MSG_DIE = 3; 2722 private final static int MSG_RESIZED = 4; 2723 private final static int MSG_RESIZED_REPORT = 5; 2724 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2725 private final static int MSG_DISPATCH_KEY = 7; 2726 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2727 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2728 private final static int MSG_IME_FINISHED_EVENT = 10; 2729 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2730 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2731 private final static int MSG_CHECK_FOCUS = 13; 2732 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2733 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2734 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2735 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2736 private final static int MSG_UPDATE_CONFIGURATION = 18; 2737 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2738 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2739 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2740 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2741 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2742 private final static int MSG_INVALIDATE_WORLD = 24; 2743 private final static int MSG_WINDOW_MOVED = 25; 2744 2745 final class ViewRootHandler extends Handler { 2746 @Override 2747 public String getMessageName(Message message) { 2748 switch (message.what) { 2749 case MSG_INVALIDATE: 2750 return "MSG_INVALIDATE"; 2751 case MSG_INVALIDATE_RECT: 2752 return "MSG_INVALIDATE_RECT"; 2753 case MSG_DIE: 2754 return "MSG_DIE"; 2755 case MSG_RESIZED: 2756 return "MSG_RESIZED"; 2757 case MSG_RESIZED_REPORT: 2758 return "MSG_RESIZED_REPORT"; 2759 case MSG_WINDOW_FOCUS_CHANGED: 2760 return "MSG_WINDOW_FOCUS_CHANGED"; 2761 case MSG_DISPATCH_KEY: 2762 return "MSG_DISPATCH_KEY"; 2763 case MSG_DISPATCH_APP_VISIBILITY: 2764 return "MSG_DISPATCH_APP_VISIBILITY"; 2765 case MSG_DISPATCH_GET_NEW_SURFACE: 2766 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2767 case MSG_IME_FINISHED_EVENT: 2768 return "MSG_IME_FINISHED_EVENT"; 2769 case MSG_DISPATCH_KEY_FROM_IME: 2770 return "MSG_DISPATCH_KEY_FROM_IME"; 2771 case MSG_FINISH_INPUT_CONNECTION: 2772 return "MSG_FINISH_INPUT_CONNECTION"; 2773 case MSG_CHECK_FOCUS: 2774 return "MSG_CHECK_FOCUS"; 2775 case MSG_CLOSE_SYSTEM_DIALOGS: 2776 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2777 case MSG_DISPATCH_DRAG_EVENT: 2778 return "MSG_DISPATCH_DRAG_EVENT"; 2779 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2780 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2781 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2782 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2783 case MSG_UPDATE_CONFIGURATION: 2784 return "MSG_UPDATE_CONFIGURATION"; 2785 case MSG_PROCESS_INPUT_EVENTS: 2786 return "MSG_PROCESS_INPUT_EVENTS"; 2787 case MSG_DISPATCH_SCREEN_STATE: 2788 return "MSG_DISPATCH_SCREEN_STATE"; 2789 case MSG_INVALIDATE_DISPLAY_LIST: 2790 return "MSG_INVALIDATE_DISPLAY_LIST"; 2791 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2792 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2793 case MSG_DISPATCH_DONE_ANIMATING: 2794 return "MSG_DISPATCH_DONE_ANIMATING"; 2795 case MSG_WINDOW_MOVED: 2796 return "MSG_WINDOW_MOVED"; 2797 } 2798 return super.getMessageName(message); 2799 } 2800 2801 @Override 2802 public void handleMessage(Message msg) { 2803 switch (msg.what) { 2804 case MSG_INVALIDATE: 2805 ((View) msg.obj).invalidate(); 2806 break; 2807 case MSG_INVALIDATE_RECT: 2808 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2809 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2810 info.release(); 2811 break; 2812 case MSG_IME_FINISHED_EVENT: 2813 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2814 break; 2815 case MSG_PROCESS_INPUT_EVENTS: 2816 mProcessInputEventsScheduled = false; 2817 doProcessInputEvents(); 2818 break; 2819 case MSG_DISPATCH_APP_VISIBILITY: 2820 handleAppVisibility(msg.arg1 != 0); 2821 break; 2822 case MSG_DISPATCH_GET_NEW_SURFACE: 2823 handleGetNewSurface(); 2824 break; 2825 case MSG_RESIZED: 2826 ResizedInfo ri = (ResizedInfo)msg.obj; 2827 2828 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2829 && mPendingContentInsets.equals(ri.contentInsets) 2830 && mPendingVisibleInsets.equals(ri.visibleInsets) 2831 && ((ResizedInfo)msg.obj).newConfig == null) { 2832 break; 2833 } 2834 // fall through... 2835 case MSG_RESIZED_REPORT: 2836 if (mAdded) { 2837 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2838 if (config != null) { 2839 updateConfiguration(config, false); 2840 } 2841 // TODO: Should left/top stay unchanged and only change the right/bottom? 2842 mWinFrame.left = 0; 2843 mWinFrame.right = msg.arg1; 2844 mWinFrame.top = 0; 2845 mWinFrame.bottom = msg.arg2; 2846 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2847 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2848 if (msg.what == MSG_RESIZED_REPORT) { 2849 mReportNextDraw = true; 2850 } 2851 2852 if (mView != null) { 2853 forceLayout(mView); 2854 } 2855 requestLayout(); 2856 } 2857 break; 2858 case MSG_WINDOW_MOVED: 2859 if (mAdded) { 2860 final int w = mWinFrame.width(); 2861 final int h = mWinFrame.height(); 2862 final int l = msg.arg1; 2863 final int t = msg.arg2; 2864 mWinFrame.left = l; 2865 mWinFrame.right = l + w; 2866 mWinFrame.top = t; 2867 mWinFrame.bottom = t + h; 2868 2869 if (mView != null) { 2870 forceLayout(mView); 2871 } 2872 requestLayout(); 2873 } 2874 break; 2875 case MSG_WINDOW_FOCUS_CHANGED: { 2876 if (mAdded) { 2877 boolean hasWindowFocus = msg.arg1 != 0; 2878 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2879 2880 profileRendering(hasWindowFocus); 2881 2882 if (hasWindowFocus) { 2883 boolean inTouchMode = msg.arg2 != 0; 2884 ensureTouchModeLocally(inTouchMode); 2885 2886 if (mAttachInfo.mHardwareRenderer != null && 2887 mSurface != null && mSurface.isValid()) { 2888 mFullRedrawNeeded = true; 2889 try { 2890 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2891 mHolder.getSurface()); 2892 } catch (Surface.OutOfResourcesException e) { 2893 Log.e(TAG, "OutOfResourcesException locking surface", e); 2894 try { 2895 if (!sWindowSession.outOfMemory(mWindow)) { 2896 Slog.w(TAG, "No processes killed for memory; killing self"); 2897 Process.killProcess(Process.myPid()); 2898 } 2899 } catch (RemoteException ex) { 2900 } 2901 // Retry in a bit. 2902 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2903 return; 2904 } 2905 } 2906 } 2907 2908 mLastWasImTarget = WindowManager.LayoutParams 2909 .mayUseInputMethod(mWindowAttributes.flags); 2910 2911 InputMethodManager imm = InputMethodManager.peekInstance(); 2912 if (mView != null) { 2913 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2914 imm.startGettingWindowFocus(mView); 2915 } 2916 mAttachInfo.mKeyDispatchState.reset(); 2917 mView.dispatchWindowFocusChanged(hasWindowFocus); 2918 } 2919 2920 // Note: must be done after the focus change callbacks, 2921 // so all of the view state is set up correctly. 2922 if (hasWindowFocus) { 2923 if (imm != null && mLastWasImTarget) { 2924 imm.onWindowFocus(mView, mView.findFocus(), 2925 mWindowAttributes.softInputMode, 2926 !mHasHadWindowFocus, mWindowAttributes.flags); 2927 } 2928 // Clear the forward bit. We can just do this directly, since 2929 // the window manager doesn't care about it. 2930 mWindowAttributes.softInputMode &= 2931 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2932 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2933 .softInputMode &= 2934 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2935 mHasHadWindowFocus = true; 2936 } 2937 2938 setAccessibilityFocus(null, null); 2939 2940 if (mView != null && mAccessibilityManager.isEnabled()) { 2941 if (hasWindowFocus) { 2942 mView.sendAccessibilityEvent( 2943 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2944 } 2945 } 2946 } 2947 } break; 2948 case MSG_DIE: 2949 doDie(); 2950 break; 2951 case MSG_DISPATCH_KEY: { 2952 KeyEvent event = (KeyEvent)msg.obj; 2953 enqueueInputEvent(event, null, 0, true); 2954 } break; 2955 case MSG_DISPATCH_KEY_FROM_IME: { 2956 if (LOCAL_LOGV) Log.v( 2957 TAG, "Dispatching key " 2958 + msg.obj + " from IME to " + mView); 2959 KeyEvent event = (KeyEvent)msg.obj; 2960 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2961 // The IME is trying to say this event is from the 2962 // system! Bad bad bad! 2963 //noinspection UnusedAssignment 2964 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2965 } 2966 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2967 } break; 2968 case MSG_FINISH_INPUT_CONNECTION: { 2969 InputMethodManager imm = InputMethodManager.peekInstance(); 2970 if (imm != null) { 2971 imm.reportFinishInputConnection((InputConnection)msg.obj); 2972 } 2973 } break; 2974 case MSG_CHECK_FOCUS: { 2975 InputMethodManager imm = InputMethodManager.peekInstance(); 2976 if (imm != null) { 2977 imm.checkFocus(); 2978 } 2979 } break; 2980 case MSG_CLOSE_SYSTEM_DIALOGS: { 2981 if (mView != null) { 2982 mView.onCloseSystemDialogs((String)msg.obj); 2983 } 2984 } break; 2985 case MSG_DISPATCH_DRAG_EVENT: 2986 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2987 DragEvent event = (DragEvent)msg.obj; 2988 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2989 handleDragEvent(event); 2990 } break; 2991 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2992 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2993 } break; 2994 case MSG_UPDATE_CONFIGURATION: { 2995 Configuration config = (Configuration)msg.obj; 2996 if (config.isOtherSeqNewer(mLastConfiguration)) { 2997 config = mLastConfiguration; 2998 } 2999 updateConfiguration(config, false); 3000 } break; 3001 case MSG_DISPATCH_SCREEN_STATE: { 3002 if (mView != null) { 3003 handleScreenStateChange(msg.arg1 == 1); 3004 } 3005 } break; 3006 case MSG_INVALIDATE_DISPLAY_LIST: { 3007 invalidateDisplayLists(); 3008 } break; 3009 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3010 setAccessibilityFocus(null, null); 3011 } break; 3012 case MSG_DISPATCH_DONE_ANIMATING: { 3013 handleDispatchDoneAnimating(); 3014 } break; 3015 case MSG_INVALIDATE_WORLD: { 3016 invalidateWorld(mView); 3017 } break; 3018 } 3019 } 3020 } 3021 3022 final ViewRootHandler mHandler = new ViewRootHandler(); 3023 3024 /** 3025 * Something in the current window tells us we need to change the touch mode. For 3026 * example, we are not in touch mode, and the user touches the screen. 3027 * 3028 * If the touch mode has changed, tell the window manager, and handle it locally. 3029 * 3030 * @param inTouchMode Whether we want to be in touch mode. 3031 * @return True if the touch mode changed and focus changed was changed as a result 3032 */ 3033 boolean ensureTouchMode(boolean inTouchMode) { 3034 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3035 + "touch mode is " + mAttachInfo.mInTouchMode); 3036 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3037 3038 // tell the window manager 3039 try { 3040 sWindowSession.setInTouchMode(inTouchMode); 3041 } catch (RemoteException e) { 3042 throw new RuntimeException(e); 3043 } 3044 3045 // handle the change 3046 return ensureTouchModeLocally(inTouchMode); 3047 } 3048 3049 /** 3050 * Ensure that the touch mode for this window is set, and if it is changing, 3051 * take the appropriate action. 3052 * @param inTouchMode Whether we want to be in touch mode. 3053 * @return True if the touch mode changed and focus changed was changed as a result 3054 */ 3055 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3056 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3057 + "touch mode is " + mAttachInfo.mInTouchMode); 3058 3059 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3060 3061 mAttachInfo.mInTouchMode = inTouchMode; 3062 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3063 3064 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3065 } 3066 3067 private boolean enterTouchMode() { 3068 if (mView != null) { 3069 if (mView.hasFocus()) { 3070 // note: not relying on mFocusedView here because this could 3071 // be when the window is first being added, and mFocused isn't 3072 // set yet. 3073 final View focused = mView.findFocus(); 3074 if (focused != null && !focused.isFocusableInTouchMode()) { 3075 3076 final ViewGroup ancestorToTakeFocus = 3077 findAncestorToTakeFocusInTouchMode(focused); 3078 if (ancestorToTakeFocus != null) { 3079 // there is an ancestor that wants focus after its descendants that 3080 // is focusable in touch mode.. give it focus 3081 return ancestorToTakeFocus.requestFocus(); 3082 } else { 3083 // nothing appropriate to have focus in touch mode, clear it out 3084 mView.unFocus(); 3085 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3086 mFocusedView = null; 3087 mOldFocusedView = null; 3088 return true; 3089 } 3090 } 3091 } 3092 } 3093 return false; 3094 } 3095 3096 /** 3097 * Find an ancestor of focused that wants focus after its descendants and is 3098 * focusable in touch mode. 3099 * @param focused The currently focused view. 3100 * @return An appropriate view, or null if no such view exists. 3101 */ 3102 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3103 ViewParent parent = focused.getParent(); 3104 while (parent instanceof ViewGroup) { 3105 final ViewGroup vgParent = (ViewGroup) parent; 3106 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3107 && vgParent.isFocusableInTouchMode()) { 3108 return vgParent; 3109 } 3110 if (vgParent.isRootNamespace()) { 3111 return null; 3112 } else { 3113 parent = vgParent.getParent(); 3114 } 3115 } 3116 return null; 3117 } 3118 3119 private boolean leaveTouchMode() { 3120 if (mView != null) { 3121 if (mView.hasFocus()) { 3122 // i learned the hard way to not trust mFocusedView :) 3123 mFocusedView = mView.findFocus(); 3124 if (!(mFocusedView instanceof ViewGroup)) { 3125 // some view has focus, let it keep it 3126 return false; 3127 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3128 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3129 // some view group has focus, and doesn't prefer its children 3130 // over itself for focus, so let them keep it. 3131 return false; 3132 } 3133 } 3134 3135 // find the best view to give focus to in this brave new non-touch-mode 3136 // world 3137 final View focused = focusSearch(null, View.FOCUS_DOWN); 3138 if (focused != null) { 3139 return focused.requestFocus(View.FOCUS_DOWN); 3140 } 3141 } 3142 return false; 3143 } 3144 3145 private void deliverInputEvent(QueuedInputEvent q) { 3146 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3147 try { 3148 if (q.mEvent instanceof KeyEvent) { 3149 deliverKeyEvent(q); 3150 } else { 3151 final int source = q.mEvent.getSource(); 3152 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3153 deliverPointerEvent(q); 3154 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3155 deliverTrackballEvent(q); 3156 } else { 3157 deliverGenericMotionEvent(q); 3158 } 3159 } 3160 } finally { 3161 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3162 } 3163 } 3164 3165 private void deliverPointerEvent(QueuedInputEvent q) { 3166 final MotionEvent event = (MotionEvent)q.mEvent; 3167 final boolean isTouchEvent = event.isTouchEvent(); 3168 if (mInputEventConsistencyVerifier != null) { 3169 if (isTouchEvent) { 3170 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3171 } else { 3172 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3173 } 3174 } 3175 3176 // If there is no view, then the event will not be handled. 3177 if (mView == null || !mAdded) { 3178 finishInputEvent(q, false); 3179 return; 3180 } 3181 3182 // Translate the pointer event for compatibility, if needed. 3183 if (mTranslator != null) { 3184 mTranslator.translateEventInScreenToAppWindow(event); 3185 } 3186 3187 // Enter touch mode on down or scroll. 3188 final int action = event.getAction(); 3189 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3190 ensureTouchMode(true); 3191 } 3192 3193 // Offset the scroll position. 3194 if (mCurScrollY != 0) { 3195 event.offsetLocation(0, mCurScrollY); 3196 } 3197 if (MEASURE_LATENCY) { 3198 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3199 } 3200 3201 // Remember the touch position for possible drag-initiation. 3202 if (isTouchEvent) { 3203 mLastTouchPoint.x = event.getRawX(); 3204 mLastTouchPoint.y = event.getRawY(); 3205 } 3206 3207 // Dispatch touch to view hierarchy. 3208 boolean handled = mView.dispatchPointerEvent(event); 3209 if (MEASURE_LATENCY) { 3210 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3211 } 3212 if (handled) { 3213 finishInputEvent(q, true); 3214 return; 3215 } 3216 3217 // Pointer event was unhandled. 3218 finishInputEvent(q, false); 3219 } 3220 3221 private void deliverTrackballEvent(QueuedInputEvent q) { 3222 final MotionEvent event = (MotionEvent)q.mEvent; 3223 if (mInputEventConsistencyVerifier != null) { 3224 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3225 } 3226 3227 // If there is no view, then the event will not be handled. 3228 if (mView == null || !mAdded) { 3229 finishInputEvent(q, false); 3230 return; 3231 } 3232 3233 // Deliver the trackball event to the view. 3234 if (mView.dispatchTrackballEvent(event)) { 3235 // If we reach this, we delivered a trackball event to mView and 3236 // mView consumed it. Because we will not translate the trackball 3237 // event into a key event, touch mode will not exit, so we exit 3238 // touch mode here. 3239 ensureTouchMode(false); 3240 3241 finishInputEvent(q, true); 3242 mLastTrackballTime = Integer.MIN_VALUE; 3243 return; 3244 } 3245 3246 // Translate the trackball event into DPAD keys and try to deliver those. 3247 final TrackballAxis x = mTrackballAxisX; 3248 final TrackballAxis y = mTrackballAxisY; 3249 3250 long curTime = SystemClock.uptimeMillis(); 3251 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3252 // It has been too long since the last movement, 3253 // so restart at the beginning. 3254 x.reset(0); 3255 y.reset(0); 3256 mLastTrackballTime = curTime; 3257 } 3258 3259 final int action = event.getAction(); 3260 final int metaState = event.getMetaState(); 3261 switch (action) { 3262 case MotionEvent.ACTION_DOWN: 3263 x.reset(2); 3264 y.reset(2); 3265 enqueueInputEvent(new KeyEvent(curTime, curTime, 3266 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3267 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3268 InputDevice.SOURCE_KEYBOARD)); 3269 break; 3270 case MotionEvent.ACTION_UP: 3271 x.reset(2); 3272 y.reset(2); 3273 enqueueInputEvent(new KeyEvent(curTime, curTime, 3274 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3275 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3276 InputDevice.SOURCE_KEYBOARD)); 3277 break; 3278 } 3279 3280 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3281 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3282 + " move=" + event.getX() 3283 + " / Y=" + y.position + " step=" 3284 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3285 + " move=" + event.getY()); 3286 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3287 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3288 3289 // Generate DPAD events based on the trackball movement. 3290 // We pick the axis that has moved the most as the direction of 3291 // the DPAD. When we generate DPAD events for one axis, then the 3292 // other axis is reset -- we don't want to perform DPAD jumps due 3293 // to slight movements in the trackball when making major movements 3294 // along the other axis. 3295 int keycode = 0; 3296 int movement = 0; 3297 float accel = 1; 3298 if (xOff > yOff) { 3299 movement = x.generate((2/event.getXPrecision())); 3300 if (movement != 0) { 3301 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3302 : KeyEvent.KEYCODE_DPAD_LEFT; 3303 accel = x.acceleration; 3304 y.reset(2); 3305 } 3306 } else if (yOff > 0) { 3307 movement = y.generate((2/event.getYPrecision())); 3308 if (movement != 0) { 3309 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3310 : KeyEvent.KEYCODE_DPAD_UP; 3311 accel = y.acceleration; 3312 x.reset(2); 3313 } 3314 } 3315 3316 if (keycode != 0) { 3317 if (movement < 0) movement = -movement; 3318 int accelMovement = (int)(movement * accel); 3319 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3320 + " accelMovement=" + accelMovement 3321 + " accel=" + accel); 3322 if (accelMovement > movement) { 3323 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3324 + keycode); 3325 movement--; 3326 int repeatCount = accelMovement - movement; 3327 enqueueInputEvent(new KeyEvent(curTime, curTime, 3328 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3329 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3330 InputDevice.SOURCE_KEYBOARD)); 3331 } 3332 while (movement > 0) { 3333 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3334 + keycode); 3335 movement--; 3336 curTime = SystemClock.uptimeMillis(); 3337 enqueueInputEvent(new KeyEvent(curTime, curTime, 3338 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3339 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3340 InputDevice.SOURCE_KEYBOARD)); 3341 enqueueInputEvent(new KeyEvent(curTime, curTime, 3342 KeyEvent.ACTION_UP, keycode, 0, metaState, 3343 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3344 InputDevice.SOURCE_KEYBOARD)); 3345 } 3346 mLastTrackballTime = curTime; 3347 } 3348 3349 // Unfortunately we can't tell whether the application consumed the keys, so 3350 // we always consider the trackball event handled. 3351 finishInputEvent(q, true); 3352 } 3353 3354 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3355 final MotionEvent event = (MotionEvent)q.mEvent; 3356 if (mInputEventConsistencyVerifier != null) { 3357 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3358 } 3359 3360 final int source = event.getSource(); 3361 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3362 3363 // If there is no view, then the event will not be handled. 3364 if (mView == null || !mAdded) { 3365 if (isJoystick) { 3366 updateJoystickDirection(event, false); 3367 } 3368 finishInputEvent(q, false); 3369 return; 3370 } 3371 3372 // Deliver the event to the view. 3373 if (mView.dispatchGenericMotionEvent(event)) { 3374 if (isJoystick) { 3375 updateJoystickDirection(event, false); 3376 } 3377 finishInputEvent(q, true); 3378 return; 3379 } 3380 3381 if (isJoystick) { 3382 // Translate the joystick event into DPAD keys and try to deliver those. 3383 updateJoystickDirection(event, true); 3384 finishInputEvent(q, true); 3385 } else { 3386 finishInputEvent(q, false); 3387 } 3388 } 3389 3390 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3391 final long time = event.getEventTime(); 3392 final int metaState = event.getMetaState(); 3393 final int deviceId = event.getDeviceId(); 3394 final int source = event.getSource(); 3395 3396 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3397 if (xDirection == 0) { 3398 xDirection = joystickAxisValueToDirection(event.getX()); 3399 } 3400 3401 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3402 if (yDirection == 0) { 3403 yDirection = joystickAxisValueToDirection(event.getY()); 3404 } 3405 3406 if (xDirection != mLastJoystickXDirection) { 3407 if (mLastJoystickXKeyCode != 0) { 3408 enqueueInputEvent(new KeyEvent(time, time, 3409 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3410 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3411 mLastJoystickXKeyCode = 0; 3412 } 3413 3414 mLastJoystickXDirection = xDirection; 3415 3416 if (xDirection != 0 && synthesizeNewKeys) { 3417 mLastJoystickXKeyCode = xDirection > 0 3418 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3419 enqueueInputEvent(new KeyEvent(time, time, 3420 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3421 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3422 } 3423 } 3424 3425 if (yDirection != mLastJoystickYDirection) { 3426 if (mLastJoystickYKeyCode != 0) { 3427 enqueueInputEvent(new KeyEvent(time, time, 3428 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3429 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3430 mLastJoystickYKeyCode = 0; 3431 } 3432 3433 mLastJoystickYDirection = yDirection; 3434 3435 if (yDirection != 0 && synthesizeNewKeys) { 3436 mLastJoystickYKeyCode = yDirection > 0 3437 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3438 enqueueInputEvent(new KeyEvent(time, time, 3439 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3440 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3441 } 3442 } 3443 } 3444 3445 private static int joystickAxisValueToDirection(float value) { 3446 if (value >= 0.5f) { 3447 return 1; 3448 } else if (value <= -0.5f) { 3449 return -1; 3450 } else { 3451 return 0; 3452 } 3453 } 3454 3455 /** 3456 * Returns true if the key is used for keyboard navigation. 3457 * @param keyEvent The key event. 3458 * @return True if the key is used for keyboard navigation. 3459 */ 3460 private static boolean isNavigationKey(KeyEvent keyEvent) { 3461 switch (keyEvent.getKeyCode()) { 3462 case KeyEvent.KEYCODE_DPAD_LEFT: 3463 case KeyEvent.KEYCODE_DPAD_RIGHT: 3464 case KeyEvent.KEYCODE_DPAD_UP: 3465 case KeyEvent.KEYCODE_DPAD_DOWN: 3466 case KeyEvent.KEYCODE_DPAD_CENTER: 3467 case KeyEvent.KEYCODE_PAGE_UP: 3468 case KeyEvent.KEYCODE_PAGE_DOWN: 3469 case KeyEvent.KEYCODE_MOVE_HOME: 3470 case KeyEvent.KEYCODE_MOVE_END: 3471 case KeyEvent.KEYCODE_TAB: 3472 case KeyEvent.KEYCODE_SPACE: 3473 case KeyEvent.KEYCODE_ENTER: 3474 return true; 3475 } 3476 return false; 3477 } 3478 3479 /** 3480 * Returns true if the key is used for typing. 3481 * @param keyEvent The key event. 3482 * @return True if the key is used for typing. 3483 */ 3484 private static boolean isTypingKey(KeyEvent keyEvent) { 3485 return keyEvent.getUnicodeChar() > 0; 3486 } 3487 3488 /** 3489 * See if the key event means we should leave touch mode (and leave touch mode if so). 3490 * @param event The key event. 3491 * @return Whether this key event should be consumed (meaning the act of 3492 * leaving touch mode alone is considered the event). 3493 */ 3494 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3495 // Only relevant in touch mode. 3496 if (!mAttachInfo.mInTouchMode) { 3497 return false; 3498 } 3499 3500 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3501 final int action = event.getAction(); 3502 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3503 return false; 3504 } 3505 3506 // Don't leave touch mode if the IME told us not to. 3507 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3508 return false; 3509 } 3510 3511 // If the key can be used for keyboard navigation then leave touch mode 3512 // and select a focused view if needed (in ensureTouchMode). 3513 // When a new focused view is selected, we consume the navigation key because 3514 // navigation doesn't make much sense unless a view already has focus so 3515 // the key's purpose is to set focus. 3516 if (isNavigationKey(event)) { 3517 return ensureTouchMode(false); 3518 } 3519 3520 // If the key can be used for typing then leave touch mode 3521 // and select a focused view if needed (in ensureTouchMode). 3522 // Always allow the view to process the typing key. 3523 if (isTypingKey(event)) { 3524 ensureTouchMode(false); 3525 return false; 3526 } 3527 3528 return false; 3529 } 3530 3531 private void deliverKeyEvent(QueuedInputEvent q) { 3532 final KeyEvent event = (KeyEvent)q.mEvent; 3533 if (mInputEventConsistencyVerifier != null) { 3534 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3535 } 3536 3537 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3538 // If there is no view, then the event will not be handled. 3539 if (mView == null || !mAdded) { 3540 finishInputEvent(q, false); 3541 return; 3542 } 3543 3544 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3545 3546 // Perform predispatching before the IME. 3547 if (mView.dispatchKeyEventPreIme(event)) { 3548 finishInputEvent(q, true); 3549 return; 3550 } 3551 3552 // Dispatch to the IME before propagating down the view hierarchy. 3553 // The IME will eventually call back into handleImeFinishedEvent. 3554 if (mLastWasImTarget) { 3555 InputMethodManager imm = InputMethodManager.peekInstance(); 3556 if (imm != null) { 3557 final int seq = event.getSequenceNumber(); 3558 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3559 + seq + " event=" + event); 3560 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3561 return; 3562 } 3563 } 3564 } 3565 3566 // Not dispatching to IME, continue with post IME actions. 3567 deliverKeyEventPostIme(q); 3568 } 3569 3570 void handleImeFinishedEvent(int seq, boolean handled) { 3571 final QueuedInputEvent q = mCurrentInputEvent; 3572 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3573 final KeyEvent event = (KeyEvent)q.mEvent; 3574 if (DEBUG_IMF) { 3575 Log.v(TAG, "IME finished event: seq=" + seq 3576 + " handled=" + handled + " event=" + event); 3577 } 3578 if (handled) { 3579 finishInputEvent(q, true); 3580 } else { 3581 deliverKeyEventPostIme(q); 3582 } 3583 } else { 3584 if (DEBUG_IMF) { 3585 Log.v(TAG, "IME finished event: seq=" + seq 3586 + " handled=" + handled + ", event not found!"); 3587 } 3588 } 3589 } 3590 3591 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3592 final KeyEvent event = (KeyEvent)q.mEvent; 3593 3594 // If the view went away, then the event will not be handled. 3595 if (mView == null || !mAdded) { 3596 finishInputEvent(q, false); 3597 return; 3598 } 3599 3600 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3601 if (checkForLeavingTouchModeAndConsume(event)) { 3602 finishInputEvent(q, true); 3603 return; 3604 } 3605 3606 // Make sure the fallback event policy sees all keys that will be delivered to the 3607 // view hierarchy. 3608 mFallbackEventHandler.preDispatchKeyEvent(event); 3609 3610 // Deliver the key to the view hierarchy. 3611 if (mView.dispatchKeyEvent(event)) { 3612 finishInputEvent(q, true); 3613 return; 3614 } 3615 3616 // If the Control modifier is held, try to interpret the key as a shortcut. 3617 if (event.getAction() == KeyEvent.ACTION_DOWN 3618 && event.isCtrlPressed() 3619 && event.getRepeatCount() == 0 3620 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3621 if (mView.dispatchKeyShortcutEvent(event)) { 3622 finishInputEvent(q, true); 3623 return; 3624 } 3625 } 3626 3627 // Apply the fallback event policy. 3628 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3629 finishInputEvent(q, true); 3630 return; 3631 } 3632 3633 // Handle automatic focus changes. 3634 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3635 int direction = 0; 3636 switch (event.getKeyCode()) { 3637 case KeyEvent.KEYCODE_DPAD_LEFT: 3638 if (event.hasNoModifiers()) { 3639 direction = View.FOCUS_LEFT; 3640 } 3641 break; 3642 case KeyEvent.KEYCODE_DPAD_RIGHT: 3643 if (event.hasNoModifiers()) { 3644 direction = View.FOCUS_RIGHT; 3645 } 3646 break; 3647 case KeyEvent.KEYCODE_DPAD_UP: 3648 if (event.hasNoModifiers()) { 3649 direction = View.FOCUS_UP; 3650 } 3651 break; 3652 case KeyEvent.KEYCODE_DPAD_DOWN: 3653 if (event.hasNoModifiers()) { 3654 direction = View.FOCUS_DOWN; 3655 } 3656 break; 3657 case KeyEvent.KEYCODE_TAB: 3658 if (event.hasNoModifiers()) { 3659 direction = View.FOCUS_FORWARD; 3660 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3661 direction = View.FOCUS_BACKWARD; 3662 } 3663 break; 3664 } 3665 if (direction != 0) { 3666 View focused = mView.findFocus(); 3667 if (focused != null) { 3668 View v = focused.focusSearch(direction); 3669 if (v != null && v != focused) { 3670 // do the math the get the interesting rect 3671 // of previous focused into the coord system of 3672 // newly focused view 3673 focused.getFocusedRect(mTempRect); 3674 if (mView instanceof ViewGroup) { 3675 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3676 focused, mTempRect); 3677 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3678 v, mTempRect); 3679 } 3680 if (v.requestFocus(direction, mTempRect)) { 3681 playSoundEffect(SoundEffectConstants 3682 .getContantForFocusDirection(direction)); 3683 finishInputEvent(q, true); 3684 return; 3685 } 3686 } 3687 3688 // Give the focused view a last chance to handle the dpad key. 3689 if (mView.dispatchUnhandledMove(focused, direction)) { 3690 finishInputEvent(q, true); 3691 return; 3692 } 3693 } 3694 } 3695 } 3696 3697 // Key was unhandled. 3698 finishInputEvent(q, false); 3699 } 3700 3701 /* drag/drop */ 3702 void setLocalDragState(Object obj) { 3703 mLocalDragState = obj; 3704 } 3705 3706 private void handleDragEvent(DragEvent event) { 3707 // From the root, only drag start/end/location are dispatched. entered/exited 3708 // are determined and dispatched by the viewgroup hierarchy, who then report 3709 // that back here for ultimate reporting back to the framework. 3710 if (mView != null && mAdded) { 3711 final int what = event.mAction; 3712 3713 if (what == DragEvent.ACTION_DRAG_EXITED) { 3714 // A direct EXITED event means that the window manager knows we've just crossed 3715 // a window boundary, so the current drag target within this one must have 3716 // just been exited. Send it the usual notifications and then we're done 3717 // for now. 3718 mView.dispatchDragEvent(event); 3719 } else { 3720 // Cache the drag description when the operation starts, then fill it in 3721 // on subsequent calls as a convenience 3722 if (what == DragEvent.ACTION_DRAG_STARTED) { 3723 mCurrentDragView = null; // Start the current-recipient tracking 3724 mDragDescription = event.mClipDescription; 3725 } else { 3726 event.mClipDescription = mDragDescription; 3727 } 3728 3729 // For events with a [screen] location, translate into window coordinates 3730 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3731 mDragPoint.set(event.mX, event.mY); 3732 if (mTranslator != null) { 3733 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3734 } 3735 3736 if (mCurScrollY != 0) { 3737 mDragPoint.offset(0, mCurScrollY); 3738 } 3739 3740 event.mX = mDragPoint.x; 3741 event.mY = mDragPoint.y; 3742 } 3743 3744 // Remember who the current drag target is pre-dispatch 3745 final View prevDragView = mCurrentDragView; 3746 3747 // Now dispatch the drag/drop event 3748 boolean result = mView.dispatchDragEvent(event); 3749 3750 // If we changed apparent drag target, tell the OS about it 3751 if (prevDragView != mCurrentDragView) { 3752 try { 3753 if (prevDragView != null) { 3754 sWindowSession.dragRecipientExited(mWindow); 3755 } 3756 if (mCurrentDragView != null) { 3757 sWindowSession.dragRecipientEntered(mWindow); 3758 } 3759 } catch (RemoteException e) { 3760 Slog.e(TAG, "Unable to note drag target change"); 3761 } 3762 } 3763 3764 // Report the drop result when we're done 3765 if (what == DragEvent.ACTION_DROP) { 3766 mDragDescription = null; 3767 try { 3768 Log.i(TAG, "Reporting drop result: " + result); 3769 sWindowSession.reportDropResult(mWindow, result); 3770 } catch (RemoteException e) { 3771 Log.e(TAG, "Unable to report drop result"); 3772 } 3773 } 3774 3775 // When the drag operation ends, release any local state object 3776 // that may have been in use 3777 if (what == DragEvent.ACTION_DRAG_ENDED) { 3778 setLocalDragState(null); 3779 } 3780 } 3781 } 3782 event.recycle(); 3783 } 3784 3785 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3786 if (mSeq != args.seq) { 3787 // The sequence has changed, so we need to update our value and make 3788 // sure to do a traversal afterward so the window manager is given our 3789 // most recent data. 3790 mSeq = args.seq; 3791 mAttachInfo.mForceReportNewAttributes = true; 3792 scheduleTraversals(); 3793 } 3794 if (mView == null) return; 3795 if (args.localChanges != 0) { 3796 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3797 } 3798 if (mAttachInfo != null) { 3799 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3800 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3801 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3802 mView.dispatchSystemUiVisibilityChanged(visibility); 3803 } 3804 } 3805 } 3806 3807 public void handleDispatchDoneAnimating() { 3808 if (mWindowsAnimating) { 3809 mWindowsAnimating = false; 3810 if (!mDirty.isEmpty() || mIsAnimating) { 3811 scheduleTraversals(); 3812 } 3813 } 3814 } 3815 3816 public void getLastTouchPoint(Point outLocation) { 3817 outLocation.x = (int) mLastTouchPoint.x; 3818 outLocation.y = (int) mLastTouchPoint.y; 3819 } 3820 3821 public void setDragFocus(View newDragTarget) { 3822 if (mCurrentDragView != newDragTarget) { 3823 mCurrentDragView = newDragTarget; 3824 } 3825 } 3826 3827 private AudioManager getAudioManager() { 3828 if (mView == null) { 3829 throw new IllegalStateException("getAudioManager called when there is no mView"); 3830 } 3831 if (mAudioManager == null) { 3832 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3833 } 3834 return mAudioManager; 3835 } 3836 3837 public AccessibilityInteractionController getAccessibilityInteractionController() { 3838 if (mView == null) { 3839 throw new IllegalStateException("getAccessibilityInteractionController" 3840 + " called when there is no mView"); 3841 } 3842 if (mAccessibilityInteractionController == null) { 3843 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3844 } 3845 return mAccessibilityInteractionController; 3846 } 3847 3848 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3849 boolean insetsPending) throws RemoteException { 3850 3851 float appScale = mAttachInfo.mApplicationScale; 3852 boolean restore = false; 3853 if (params != null && mTranslator != null) { 3854 restore = true; 3855 params.backup(); 3856 mTranslator.translateWindowLayout(params); 3857 } 3858 if (params != null) { 3859 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3860 } 3861 mPendingConfiguration.seq = 0; 3862 //Log.d(TAG, ">>>>>> CALLING relayout"); 3863 if (params != null && mOrigWindowType != params.type) { 3864 // For compatibility with old apps, don't crash here. 3865 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3866 Slog.w(TAG, "Window type can not be changed after " 3867 + "the window is added; ignoring change of " + mView); 3868 params.type = mOrigWindowType; 3869 } 3870 } 3871 int relayoutResult = sWindowSession.relayout( 3872 mWindow, mSeq, params, 3873 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3874 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3875 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3876 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3877 mPendingConfiguration, mSurface); 3878 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3879 if (restore) { 3880 params.restore(); 3881 } 3882 3883 if (mTranslator != null) { 3884 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3885 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3886 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3887 } 3888 return relayoutResult; 3889 } 3890 3891 /** 3892 * {@inheritDoc} 3893 */ 3894 public void playSoundEffect(int effectId) { 3895 checkThread(); 3896 3897 try { 3898 final AudioManager audioManager = getAudioManager(); 3899 3900 switch (effectId) { 3901 case SoundEffectConstants.CLICK: 3902 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3903 return; 3904 case SoundEffectConstants.NAVIGATION_DOWN: 3905 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3906 return; 3907 case SoundEffectConstants.NAVIGATION_LEFT: 3908 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3909 return; 3910 case SoundEffectConstants.NAVIGATION_RIGHT: 3911 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3912 return; 3913 case SoundEffectConstants.NAVIGATION_UP: 3914 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3915 return; 3916 default: 3917 throw new IllegalArgumentException("unknown effect id " + effectId + 3918 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3919 } 3920 } catch (IllegalStateException e) { 3921 // Exception thrown by getAudioManager() when mView is null 3922 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3923 e.printStackTrace(); 3924 } 3925 } 3926 3927 /** 3928 * {@inheritDoc} 3929 */ 3930 public boolean performHapticFeedback(int effectId, boolean always) { 3931 try { 3932 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3933 } catch (RemoteException e) { 3934 return false; 3935 } 3936 } 3937 3938 /** 3939 * {@inheritDoc} 3940 */ 3941 public View focusSearch(View focused, int direction) { 3942 checkThread(); 3943 if (!(mView instanceof ViewGroup)) { 3944 return null; 3945 } 3946 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3947 } 3948 3949 public void debug() { 3950 mView.debug(); 3951 } 3952 3953 public void dumpGfxInfo(int[] info) { 3954 info[0] = info[1] = 0; 3955 if (mView != null) { 3956 getGfxInfo(mView, info); 3957 } 3958 } 3959 3960 private static void getGfxInfo(View view, int[] info) { 3961 DisplayList displayList = view.mDisplayList; 3962 info[0]++; 3963 if (displayList != null) { 3964 info[1] += displayList.getSize(); 3965 } 3966 3967 if (view instanceof ViewGroup) { 3968 ViewGroup group = (ViewGroup) view; 3969 3970 int count = group.getChildCount(); 3971 for (int i = 0; i < count; i++) { 3972 getGfxInfo(group.getChildAt(i), info); 3973 } 3974 } 3975 } 3976 3977 public void die(boolean immediate) { 3978 if (immediate) { 3979 doDie(); 3980 } else { 3981 if (!mIsDrawing) { 3982 destroyHardwareRenderer(); 3983 } else { 3984 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3985 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3986 } 3987 mHandler.sendEmptyMessage(MSG_DIE); 3988 } 3989 } 3990 3991 void doDie() { 3992 checkThread(); 3993 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3994 synchronized (this) { 3995 if (mAdded) { 3996 dispatchDetachedFromWindow(); 3997 } 3998 3999 if (mAdded && !mFirst) { 4000 destroyHardwareRenderer(); 4001 4002 if (mView != null) { 4003 int viewVisibility = mView.getVisibility(); 4004 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4005 if (mWindowAttributesChanged || viewVisibilityChanged) { 4006 // If layout params have been changed, first give them 4007 // to the window manager to make sure it has the correct 4008 // animation info. 4009 try { 4010 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4011 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 4012 sWindowSession.finishDrawing(mWindow); 4013 } 4014 } catch (RemoteException e) { 4015 } 4016 } 4017 4018 mSurface.release(); 4019 } 4020 } 4021 4022 mAdded = false; 4023 } 4024 } 4025 4026 public void requestUpdateConfiguration(Configuration config) { 4027 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4028 mHandler.sendMessage(msg); 4029 } 4030 4031 public void loadSystemProperties() { 4032 boolean layout = SystemProperties.getBoolean( 4033 View.DEBUG_LAYOUT_PROPERTY, false); 4034 if (layout != mAttachInfo.mDebugLayout) { 4035 mAttachInfo.mDebugLayout = layout; 4036 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4037 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4038 } 4039 } 4040 } 4041 4042 private void destroyHardwareRenderer() { 4043 AttachInfo attachInfo = mAttachInfo; 4044 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4045 4046 if (hardwareRenderer != null) { 4047 if (mView != null) { 4048 hardwareRenderer.destroyHardwareResources(mView); 4049 } 4050 hardwareRenderer.destroy(true); 4051 hardwareRenderer.setRequested(false); 4052 4053 attachInfo.mHardwareRenderer = null; 4054 attachInfo.mHardwareAccelerated = false; 4055 } 4056 } 4057 4058 void dispatchImeFinishedEvent(int seq, boolean handled) { 4059 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4060 msg.arg1 = seq; 4061 msg.arg2 = handled ? 1 : 0; 4062 msg.setAsynchronous(true); 4063 mHandler.sendMessage(msg); 4064 } 4065 4066 public void dispatchFinishInputConnection(InputConnection connection) { 4067 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4068 mHandler.sendMessage(msg); 4069 } 4070 4071 public void dispatchResized(int w, int h, Rect contentInsets, 4072 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4073 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4074 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4075 + " visibleInsets=" + visibleInsets.toShortString() 4076 + " reportDraw=" + reportDraw); 4077 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4078 if (mTranslator != null) { 4079 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4080 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4081 w *= mTranslator.applicationInvertedScale; 4082 h *= mTranslator.applicationInvertedScale; 4083 } 4084 msg.arg1 = w; 4085 msg.arg2 = h; 4086 ResizedInfo ri = new ResizedInfo(); 4087 ri.contentInsets = new Rect(contentInsets); 4088 ri.visibleInsets = new Rect(visibleInsets); 4089 ri.newConfig = newConfig; 4090 msg.obj = ri; 4091 mHandler.sendMessage(msg); 4092 } 4093 4094 public void dispatchMoved(int newX, int newY) { 4095 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4096 if (mTranslator != null) { 4097 PointF point = new PointF(newX, newY); 4098 mTranslator.translatePointInScreenToAppWindow(point); 4099 newX = (int) (point.x + 0.5); 4100 newY = (int) (point.y + 0.5); 4101 } 4102 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4103 mHandler.sendMessage(msg); 4104 } 4105 4106 /** 4107 * Represents a pending input event that is waiting in a queue. 4108 * 4109 * Input events are processed in serial order by the timestamp specified by 4110 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4111 * one input event to the application at a time and waits for the application 4112 * to finish handling it before delivering the next one. 4113 * 4114 * However, because the application or IME can synthesize and inject multiple 4115 * key events at a time without going through the input dispatcher, we end up 4116 * needing a queue on the application's side. 4117 */ 4118 private static final class QueuedInputEvent { 4119 public static final int FLAG_DELIVER_POST_IME = 1; 4120 4121 public QueuedInputEvent mNext; 4122 4123 public InputEvent mEvent; 4124 public InputEventReceiver mReceiver; 4125 public int mFlags; 4126 } 4127 4128 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4129 InputEventReceiver receiver, int flags) { 4130 QueuedInputEvent q = mQueuedInputEventPool; 4131 if (q != null) { 4132 mQueuedInputEventPoolSize -= 1; 4133 mQueuedInputEventPool = q.mNext; 4134 q.mNext = null; 4135 } else { 4136 q = new QueuedInputEvent(); 4137 } 4138 4139 q.mEvent = event; 4140 q.mReceiver = receiver; 4141 q.mFlags = flags; 4142 return q; 4143 } 4144 4145 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4146 q.mEvent = null; 4147 q.mReceiver = null; 4148 4149 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4150 mQueuedInputEventPoolSize += 1; 4151 q.mNext = mQueuedInputEventPool; 4152 mQueuedInputEventPool = q; 4153 } 4154 } 4155 4156 void enqueueInputEvent(InputEvent event) { 4157 enqueueInputEvent(event, null, 0, false); 4158 } 4159 4160 void enqueueInputEvent(InputEvent event, 4161 InputEventReceiver receiver, int flags, boolean processImmediately) { 4162 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4163 4164 // Always enqueue the input event in order, regardless of its time stamp. 4165 // We do this because the application or the IME may inject key events 4166 // in response to touch events and we want to ensure that the injected keys 4167 // are processed in the order they were received and we cannot trust that 4168 // the time stamp of injected events are monotonic. 4169 QueuedInputEvent last = mFirstPendingInputEvent; 4170 if (last == null) { 4171 mFirstPendingInputEvent = q; 4172 } else { 4173 while (last.mNext != null) { 4174 last = last.mNext; 4175 } 4176 last.mNext = q; 4177 } 4178 4179 if (processImmediately) { 4180 doProcessInputEvents(); 4181 } else { 4182 scheduleProcessInputEvents(); 4183 } 4184 } 4185 4186 private void scheduleProcessInputEvents() { 4187 if (!mProcessInputEventsScheduled) { 4188 mProcessInputEventsScheduled = true; 4189 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4190 msg.setAsynchronous(true); 4191 mHandler.sendMessage(msg); 4192 } 4193 } 4194 4195 void doProcessInputEvents() { 4196 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4197 QueuedInputEvent q = mFirstPendingInputEvent; 4198 mFirstPendingInputEvent = q.mNext; 4199 q.mNext = null; 4200 mCurrentInputEvent = q; 4201 deliverInputEvent(q); 4202 } 4203 4204 // We are done processing all input events that we can process right now 4205 // so we can clear the pending flag immediately. 4206 if (mProcessInputEventsScheduled) { 4207 mProcessInputEventsScheduled = false; 4208 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4209 } 4210 } 4211 4212 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4213 if (q != mCurrentInputEvent) { 4214 throw new IllegalStateException("finished input event out of order"); 4215 } 4216 4217 if (q.mReceiver != null) { 4218 q.mReceiver.finishInputEvent(q.mEvent, handled); 4219 } else { 4220 q.mEvent.recycleIfNeededAfterDispatch(); 4221 } 4222 4223 recycleQueuedInputEvent(q); 4224 4225 mCurrentInputEvent = null; 4226 if (mFirstPendingInputEvent != null) { 4227 scheduleProcessInputEvents(); 4228 } 4229 } 4230 4231 void scheduleConsumeBatchedInput() { 4232 if (!mConsumeBatchedInputScheduled) { 4233 mConsumeBatchedInputScheduled = true; 4234 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4235 mConsumedBatchedInputRunnable, null); 4236 } 4237 } 4238 4239 void unscheduleConsumeBatchedInput() { 4240 if (mConsumeBatchedInputScheduled) { 4241 mConsumeBatchedInputScheduled = false; 4242 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4243 mConsumedBatchedInputRunnable, null); 4244 } 4245 } 4246 4247 void doConsumeBatchedInput(long frameTimeNanos) { 4248 if (mConsumeBatchedInputScheduled) { 4249 mConsumeBatchedInputScheduled = false; 4250 if (mInputEventReceiver != null) { 4251 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4252 } 4253 doProcessInputEvents(); 4254 } 4255 } 4256 4257 final class TraversalRunnable implements Runnable { 4258 @Override 4259 public void run() { 4260 doTraversal(); 4261 } 4262 } 4263 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4264 4265 final class WindowInputEventReceiver extends InputEventReceiver { 4266 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4267 super(inputChannel, looper); 4268 } 4269 4270 @Override 4271 public void onInputEvent(InputEvent event) { 4272 enqueueInputEvent(event, this, 0, true); 4273 } 4274 4275 @Override 4276 public void onBatchedInputEventPending() { 4277 scheduleConsumeBatchedInput(); 4278 } 4279 4280 @Override 4281 public void dispose() { 4282 unscheduleConsumeBatchedInput(); 4283 super.dispose(); 4284 } 4285 } 4286 WindowInputEventReceiver mInputEventReceiver; 4287 4288 final class ConsumeBatchedInputRunnable implements Runnable { 4289 @Override 4290 public void run() { 4291 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4292 } 4293 } 4294 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4295 new ConsumeBatchedInputRunnable(); 4296 boolean mConsumeBatchedInputScheduled; 4297 4298 final class InvalidateOnAnimationRunnable implements Runnable { 4299 private boolean mPosted; 4300 private ArrayList<View> mViews = new ArrayList<View>(); 4301 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4302 new ArrayList<AttachInfo.InvalidateInfo>(); 4303 private View[] mTempViews; 4304 private AttachInfo.InvalidateInfo[] mTempViewRects; 4305 4306 public void addView(View view) { 4307 synchronized (this) { 4308 mViews.add(view); 4309 postIfNeededLocked(); 4310 } 4311 } 4312 4313 public void addViewRect(AttachInfo.InvalidateInfo info) { 4314 synchronized (this) { 4315 mViewRects.add(info); 4316 postIfNeededLocked(); 4317 } 4318 } 4319 4320 public void removeView(View view) { 4321 synchronized (this) { 4322 mViews.remove(view); 4323 4324 for (int i = mViewRects.size(); i-- > 0; ) { 4325 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4326 if (info.target == view) { 4327 mViewRects.remove(i); 4328 info.release(); 4329 } 4330 } 4331 4332 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4333 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4334 mPosted = false; 4335 } 4336 } 4337 } 4338 4339 @Override 4340 public void run() { 4341 final int viewCount; 4342 final int viewRectCount; 4343 synchronized (this) { 4344 mPosted = false; 4345 4346 viewCount = mViews.size(); 4347 if (viewCount != 0) { 4348 mTempViews = mViews.toArray(mTempViews != null 4349 ? mTempViews : new View[viewCount]); 4350 mViews.clear(); 4351 } 4352 4353 viewRectCount = mViewRects.size(); 4354 if (viewRectCount != 0) { 4355 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4356 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4357 mViewRects.clear(); 4358 } 4359 } 4360 4361 for (int i = 0; i < viewCount; i++) { 4362 mTempViews[i].invalidate(); 4363 mTempViews[i] = null; 4364 } 4365 4366 for (int i = 0; i < viewRectCount; i++) { 4367 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4368 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4369 info.release(); 4370 } 4371 } 4372 4373 private void postIfNeededLocked() { 4374 if (!mPosted) { 4375 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4376 mPosted = true; 4377 } 4378 } 4379 } 4380 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4381 new InvalidateOnAnimationRunnable(); 4382 4383 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4384 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4385 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4386 } 4387 4388 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4389 long delayMilliseconds) { 4390 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4391 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4392 } 4393 4394 public void dispatchInvalidateOnAnimation(View view) { 4395 mInvalidateOnAnimationRunnable.addView(view); 4396 } 4397 4398 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4399 mInvalidateOnAnimationRunnable.addViewRect(info); 4400 } 4401 4402 public void enqueueDisplayList(DisplayList displayList) { 4403 mDisplayLists.add(displayList); 4404 4405 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4406 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4407 mHandler.sendMessage(msg); 4408 } 4409 4410 public void dequeueDisplayList(DisplayList displayList) { 4411 if (mDisplayLists.remove(displayList)) { 4412 displayList.invalidate(); 4413 if (mDisplayLists.size() == 0) { 4414 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4415 } 4416 } 4417 } 4418 4419 public void cancelInvalidate(View view) { 4420 mHandler.removeMessages(MSG_INVALIDATE, view); 4421 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4422 // them to the pool 4423 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4424 mInvalidateOnAnimationRunnable.removeView(view); 4425 } 4426 4427 public void dispatchKey(KeyEvent event) { 4428 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4429 msg.setAsynchronous(true); 4430 mHandler.sendMessage(msg); 4431 } 4432 4433 public void dispatchKeyFromIme(KeyEvent event) { 4434 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4435 msg.setAsynchronous(true); 4436 mHandler.sendMessage(msg); 4437 } 4438 4439 public void dispatchUnhandledKey(KeyEvent event) { 4440 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4441 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4442 final int keyCode = event.getKeyCode(); 4443 final int metaState = event.getMetaState(); 4444 4445 // Check for fallback actions specified by the key character map. 4446 KeyCharacterMap.FallbackAction fallbackAction = 4447 kcm.getFallbackAction(keyCode, metaState); 4448 if (fallbackAction != null) { 4449 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4450 KeyEvent fallbackEvent = KeyEvent.obtain( 4451 event.getDownTime(), event.getEventTime(), 4452 event.getAction(), fallbackAction.keyCode, 4453 event.getRepeatCount(), fallbackAction.metaState, 4454 event.getDeviceId(), event.getScanCode(), 4455 flags, event.getSource(), null); 4456 fallbackAction.recycle(); 4457 4458 dispatchKey(fallbackEvent); 4459 } 4460 } 4461 } 4462 4463 public void dispatchAppVisibility(boolean visible) { 4464 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4465 msg.arg1 = visible ? 1 : 0; 4466 mHandler.sendMessage(msg); 4467 } 4468 4469 public void dispatchScreenStateChange(boolean on) { 4470 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4471 msg.arg1 = on ? 1 : 0; 4472 mHandler.sendMessage(msg); 4473 } 4474 4475 public void dispatchGetNewSurface() { 4476 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4477 mHandler.sendMessage(msg); 4478 } 4479 4480 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4481 Message msg = Message.obtain(); 4482 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4483 msg.arg1 = hasFocus ? 1 : 0; 4484 msg.arg2 = inTouchMode ? 1 : 0; 4485 mHandler.sendMessage(msg); 4486 } 4487 4488 public void dispatchCloseSystemDialogs(String reason) { 4489 Message msg = Message.obtain(); 4490 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4491 msg.obj = reason; 4492 mHandler.sendMessage(msg); 4493 } 4494 4495 public void dispatchDragEvent(DragEvent event) { 4496 final int what; 4497 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4498 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4499 mHandler.removeMessages(what); 4500 } else { 4501 what = MSG_DISPATCH_DRAG_EVENT; 4502 } 4503 Message msg = mHandler.obtainMessage(what, event); 4504 mHandler.sendMessage(msg); 4505 } 4506 4507 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4508 int localValue, int localChanges) { 4509 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4510 args.seq = seq; 4511 args.globalVisibility = globalVisibility; 4512 args.localValue = localValue; 4513 args.localChanges = localChanges; 4514 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4515 } 4516 4517 public void dispatchDoneAnimating() { 4518 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4519 } 4520 4521 public void dispatchCheckFocus() { 4522 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4523 // This will result in a call to checkFocus() below. 4524 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4525 } 4526 } 4527 4528 /** 4529 * Post a callback to send a 4530 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4531 * This event is send at most once every 4532 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4533 */ 4534 private void postSendWindowContentChangedCallback(View source) { 4535 if (mSendWindowContentChangedAccessibilityEvent == null) { 4536 mSendWindowContentChangedAccessibilityEvent = 4537 new SendWindowContentChangedAccessibilityEvent(); 4538 } 4539 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4540 if (oldSource == null) { 4541 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4542 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4543 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4544 } else { 4545 mSendWindowContentChangedAccessibilityEvent.mSource = 4546 getCommonPredecessor(oldSource, source); 4547 } 4548 } 4549 4550 /** 4551 * Remove a posted callback to send a 4552 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4553 */ 4554 private void removeSendWindowContentChangedCallback() { 4555 if (mSendWindowContentChangedAccessibilityEvent != null) { 4556 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4557 } 4558 } 4559 4560 public boolean showContextMenuForChild(View originalView) { 4561 return false; 4562 } 4563 4564 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4565 return null; 4566 } 4567 4568 public void createContextMenu(ContextMenu menu) { 4569 } 4570 4571 public void childDrawableStateChanged(View child) { 4572 } 4573 4574 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4575 if (mView == null) { 4576 return false; 4577 } 4578 // Intercept accessibility focus events fired by virtual nodes to keep 4579 // track of accessibility focus position in such nodes. 4580 final int eventType = event.getEventType(); 4581 switch (eventType) { 4582 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4583 final long sourceNodeId = event.getSourceNodeId(); 4584 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4585 sourceNodeId); 4586 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4587 if (source != null) { 4588 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4589 if (provider != null) { 4590 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4591 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4592 setAccessibilityFocus(source, node); 4593 } 4594 } 4595 } break; 4596 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4597 final long sourceNodeId = event.getSourceNodeId(); 4598 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4599 sourceNodeId); 4600 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4601 if (source != null) { 4602 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4603 if (provider != null) { 4604 setAccessibilityFocus(null, null); 4605 } 4606 } 4607 } break; 4608 } 4609 mAccessibilityManager.sendAccessibilityEvent(event); 4610 return true; 4611 } 4612 4613 @Override 4614 public void childAccessibilityStateChanged(View child) { 4615 postSendWindowContentChangedCallback(child); 4616 } 4617 4618 private View getCommonPredecessor(View first, View second) { 4619 if (mAttachInfo != null) { 4620 if (mTempHashSet == null) { 4621 mTempHashSet = new HashSet<View>(); 4622 } 4623 HashSet<View> seen = mTempHashSet; 4624 seen.clear(); 4625 View firstCurrent = first; 4626 while (firstCurrent != null) { 4627 seen.add(firstCurrent); 4628 ViewParent firstCurrentParent = firstCurrent.mParent; 4629 if (firstCurrentParent instanceof View) { 4630 firstCurrent = (View) firstCurrentParent; 4631 } else { 4632 firstCurrent = null; 4633 } 4634 } 4635 View secondCurrent = second; 4636 while (secondCurrent != null) { 4637 if (seen.contains(secondCurrent)) { 4638 seen.clear(); 4639 return secondCurrent; 4640 } 4641 ViewParent secondCurrentParent = secondCurrent.mParent; 4642 if (secondCurrentParent instanceof View) { 4643 secondCurrent = (View) secondCurrentParent; 4644 } else { 4645 secondCurrent = null; 4646 } 4647 } 4648 seen.clear(); 4649 } 4650 return null; 4651 } 4652 4653 void checkThread() { 4654 if (mThread != Thread.currentThread()) { 4655 throw new CalledFromWrongThreadException( 4656 "Only the original thread that created a view hierarchy can touch its views."); 4657 } 4658 } 4659 4660 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4661 // ViewAncestor never intercepts touch event, so this can be a no-op 4662 } 4663 4664 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4665 boolean immediate) { 4666 return scrollToRectOrFocus(rectangle, immediate); 4667 } 4668 4669 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4670 // Do nothing. 4671 } 4672 4673 class TakenSurfaceHolder extends BaseSurfaceHolder { 4674 @Override 4675 public boolean onAllowLockCanvas() { 4676 return mDrawingAllowed; 4677 } 4678 4679 @Override 4680 public void onRelayoutContainer() { 4681 // Not currently interesting -- from changing between fixed and layout size. 4682 } 4683 4684 public void setFormat(int format) { 4685 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4686 } 4687 4688 public void setType(int type) { 4689 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4690 } 4691 4692 @Override 4693 public void onUpdateSurface() { 4694 // We take care of format and type changes on our own. 4695 throw new IllegalStateException("Shouldn't be here"); 4696 } 4697 4698 public boolean isCreating() { 4699 return mIsCreating; 4700 } 4701 4702 @Override 4703 public void setFixedSize(int width, int height) { 4704 throw new UnsupportedOperationException( 4705 "Currently only support sizing from layout"); 4706 } 4707 4708 public void setKeepScreenOn(boolean screenOn) { 4709 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4710 } 4711 } 4712 4713 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4714 private WeakReference<ViewRootImpl> mViewAncestor; 4715 4716 public InputMethodCallback(ViewRootImpl viewAncestor) { 4717 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4718 } 4719 4720 @Override 4721 public void finishedEvent(int seq, boolean handled) { 4722 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4723 if (viewAncestor != null) { 4724 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4725 } 4726 } 4727 } 4728 4729 static class W extends IWindow.Stub { 4730 private final WeakReference<ViewRootImpl> mViewAncestor; 4731 4732 W(ViewRootImpl viewAncestor) { 4733 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4734 } 4735 4736 public void resized(int w, int h, Rect contentInsets, 4737 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4738 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4739 if (viewAncestor != null) { 4740 viewAncestor.dispatchResized(w, h, contentInsets, 4741 visibleInsets, reportDraw, newConfig); 4742 } 4743 } 4744 4745 @Override 4746 public void moved(int newX, int newY) { 4747 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4748 if (viewAncestor != null) { 4749 viewAncestor.dispatchMoved(newX, newY); 4750 } 4751 } 4752 4753 public void dispatchAppVisibility(boolean visible) { 4754 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4755 if (viewAncestor != null) { 4756 viewAncestor.dispatchAppVisibility(visible); 4757 } 4758 } 4759 4760 public void dispatchScreenState(boolean on) { 4761 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4762 if (viewAncestor != null) { 4763 viewAncestor.dispatchScreenStateChange(on); 4764 } 4765 } 4766 4767 public void dispatchGetNewSurface() { 4768 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4769 if (viewAncestor != null) { 4770 viewAncestor.dispatchGetNewSurface(); 4771 } 4772 } 4773 4774 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4775 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4776 if (viewAncestor != null) { 4777 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4778 } 4779 } 4780 4781 private static int checkCallingPermission(String permission) { 4782 try { 4783 return ActivityManagerNative.getDefault().checkPermission( 4784 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4785 } catch (RemoteException e) { 4786 return PackageManager.PERMISSION_DENIED; 4787 } 4788 } 4789 4790 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4791 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4792 if (viewAncestor != null) { 4793 final View view = viewAncestor.mView; 4794 if (view != null) { 4795 if (checkCallingPermission(Manifest.permission.DUMP) != 4796 PackageManager.PERMISSION_GRANTED) { 4797 throw new SecurityException("Insufficient permissions to invoke" 4798 + " executeCommand() from pid=" + Binder.getCallingPid() 4799 + ", uid=" + Binder.getCallingUid()); 4800 } 4801 4802 OutputStream clientStream = null; 4803 try { 4804 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4805 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4806 } catch (IOException e) { 4807 e.printStackTrace(); 4808 } finally { 4809 if (clientStream != null) { 4810 try { 4811 clientStream.close(); 4812 } catch (IOException e) { 4813 e.printStackTrace(); 4814 } 4815 } 4816 } 4817 } 4818 } 4819 } 4820 4821 public void closeSystemDialogs(String reason) { 4822 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4823 if (viewAncestor != null) { 4824 viewAncestor.dispatchCloseSystemDialogs(reason); 4825 } 4826 } 4827 4828 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4829 boolean sync) { 4830 if (sync) { 4831 try { 4832 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4833 } catch (RemoteException e) { 4834 } 4835 } 4836 } 4837 4838 public void dispatchWallpaperCommand(String action, int x, int y, 4839 int z, Bundle extras, boolean sync) { 4840 if (sync) { 4841 try { 4842 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4843 } catch (RemoteException e) { 4844 } 4845 } 4846 } 4847 4848 /* Drag/drop */ 4849 public void dispatchDragEvent(DragEvent event) { 4850 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4851 if (viewAncestor != null) { 4852 viewAncestor.dispatchDragEvent(event); 4853 } 4854 } 4855 4856 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4857 int localValue, int localChanges) { 4858 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4859 if (viewAncestor != null) { 4860 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4861 localValue, localChanges); 4862 } 4863 } 4864 4865 public void doneAnimating() { 4866 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4867 if (viewAncestor != null) { 4868 viewAncestor.dispatchDoneAnimating(); 4869 } 4870 } 4871 } 4872 4873 /** 4874 * Maintains state information for a single trackball axis, generating 4875 * discrete (DPAD) movements based on raw trackball motion. 4876 */ 4877 static final class TrackballAxis { 4878 /** 4879 * The maximum amount of acceleration we will apply. 4880 */ 4881 static final float MAX_ACCELERATION = 20; 4882 4883 /** 4884 * The maximum amount of time (in milliseconds) between events in order 4885 * for us to consider the user to be doing fast trackball movements, 4886 * and thus apply an acceleration. 4887 */ 4888 static final long FAST_MOVE_TIME = 150; 4889 4890 /** 4891 * Scaling factor to the time (in milliseconds) between events to how 4892 * much to multiple/divide the current acceleration. When movement 4893 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4894 * FAST_MOVE_TIME it divides it. 4895 */ 4896 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4897 4898 float position; 4899 float absPosition; 4900 float acceleration = 1; 4901 long lastMoveTime = 0; 4902 int step; 4903 int dir; 4904 int nonAccelMovement; 4905 4906 void reset(int _step) { 4907 position = 0; 4908 acceleration = 1; 4909 lastMoveTime = 0; 4910 step = _step; 4911 dir = 0; 4912 } 4913 4914 /** 4915 * Add trackball movement into the state. If the direction of movement 4916 * has been reversed, the state is reset before adding the 4917 * movement (so that you don't have to compensate for any previously 4918 * collected movement before see the result of the movement in the 4919 * new direction). 4920 * 4921 * @return Returns the absolute value of the amount of movement 4922 * collected so far. 4923 */ 4924 float collect(float off, long time, String axis) { 4925 long normTime; 4926 if (off > 0) { 4927 normTime = (long)(off * FAST_MOVE_TIME); 4928 if (dir < 0) { 4929 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4930 position = 0; 4931 step = 0; 4932 acceleration = 1; 4933 lastMoveTime = 0; 4934 } 4935 dir = 1; 4936 } else if (off < 0) { 4937 normTime = (long)((-off) * FAST_MOVE_TIME); 4938 if (dir > 0) { 4939 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4940 position = 0; 4941 step = 0; 4942 acceleration = 1; 4943 lastMoveTime = 0; 4944 } 4945 dir = -1; 4946 } else { 4947 normTime = 0; 4948 } 4949 4950 // The number of milliseconds between each movement that is 4951 // considered "normal" and will not result in any acceleration 4952 // or deceleration, scaled by the offset we have here. 4953 if (normTime > 0) { 4954 long delta = time - lastMoveTime; 4955 lastMoveTime = time; 4956 float acc = acceleration; 4957 if (delta < normTime) { 4958 // The user is scrolling rapidly, so increase acceleration. 4959 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4960 if (scale > 1) acc *= scale; 4961 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4962 + off + " normTime=" + normTime + " delta=" + delta 4963 + " scale=" + scale + " acc=" + acc); 4964 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4965 } else { 4966 // The user is scrolling slowly, so decrease acceleration. 4967 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4968 if (scale > 1) acc /= scale; 4969 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4970 + off + " normTime=" + normTime + " delta=" + delta 4971 + " scale=" + scale + " acc=" + acc); 4972 acceleration = acc > 1 ? acc : 1; 4973 } 4974 } 4975 position += off; 4976 return (absPosition = Math.abs(position)); 4977 } 4978 4979 /** 4980 * Generate the number of discrete movement events appropriate for 4981 * the currently collected trackball movement. 4982 * 4983 * @param precision The minimum movement required to generate the 4984 * first discrete movement. 4985 * 4986 * @return Returns the number of discrete movements, either positive 4987 * or negative, or 0 if there is not enough trackball movement yet 4988 * for a discrete movement. 4989 */ 4990 int generate(float precision) { 4991 int movement = 0; 4992 nonAccelMovement = 0; 4993 do { 4994 final int dir = position >= 0 ? 1 : -1; 4995 switch (step) { 4996 // If we are going to execute the first step, then we want 4997 // to do this as soon as possible instead of waiting for 4998 // a full movement, in order to make things look responsive. 4999 case 0: 5000 if (absPosition < precision) { 5001 return movement; 5002 } 5003 movement += dir; 5004 nonAccelMovement += dir; 5005 step = 1; 5006 break; 5007 // If we have generated the first movement, then we need 5008 // to wait for the second complete trackball motion before 5009 // generating the second discrete movement. 5010 case 1: 5011 if (absPosition < 2) { 5012 return movement; 5013 } 5014 movement += dir; 5015 nonAccelMovement += dir; 5016 position += dir > 0 ? -2 : 2; 5017 absPosition = Math.abs(position); 5018 step = 2; 5019 break; 5020 // After the first two, we generate discrete movements 5021 // consistently with the trackball, applying an acceleration 5022 // if the trackball is moving quickly. This is a simple 5023 // acceleration on top of what we already compute based 5024 // on how quickly the wheel is being turned, to apply 5025 // a longer increasing acceleration to continuous movement 5026 // in one direction. 5027 default: 5028 if (absPosition < 1) { 5029 return movement; 5030 } 5031 movement += dir; 5032 position += dir >= 0 ? -1 : 1; 5033 absPosition = Math.abs(position); 5034 float acc = acceleration; 5035 acc *= 1.1f; 5036 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5037 break; 5038 } 5039 } while (true); 5040 } 5041 } 5042 5043 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5044 public CalledFromWrongThreadException(String msg) { 5045 super(msg); 5046 } 5047 } 5048 5049 private SurfaceHolder mHolder = new SurfaceHolder() { 5050 // we only need a SurfaceHolder for opengl. it would be nice 5051 // to implement everything else though, especially the callback 5052 // support (opengl doesn't make use of it right now, but eventually 5053 // will). 5054 public Surface getSurface() { 5055 return mSurface; 5056 } 5057 5058 public boolean isCreating() { 5059 return false; 5060 } 5061 5062 public void addCallback(Callback callback) { 5063 } 5064 5065 public void removeCallback(Callback callback) { 5066 } 5067 5068 public void setFixedSize(int width, int height) { 5069 } 5070 5071 public void setSizeFromLayout() { 5072 } 5073 5074 public void setFormat(int format) { 5075 } 5076 5077 public void setType(int type) { 5078 } 5079 5080 public void setKeepScreenOn(boolean screenOn) { 5081 } 5082 5083 public Canvas lockCanvas() { 5084 return null; 5085 } 5086 5087 public Canvas lockCanvas(Rect dirty) { 5088 return null; 5089 } 5090 5091 public void unlockCanvasAndPost(Canvas canvas) { 5092 } 5093 public Rect getSurfaceFrame() { 5094 return null; 5095 } 5096 }; 5097 5098 static RunQueue getRunQueue() { 5099 RunQueue rq = sRunQueues.get(); 5100 if (rq != null) { 5101 return rq; 5102 } 5103 rq = new RunQueue(); 5104 sRunQueues.set(rq); 5105 return rq; 5106 } 5107 5108 /** 5109 * The run queue is used to enqueue pending work from Views when no Handler is 5110 * attached. The work is executed during the next call to performTraversals on 5111 * the thread. 5112 * @hide 5113 */ 5114 static final class RunQueue { 5115 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5116 5117 void post(Runnable action) { 5118 postDelayed(action, 0); 5119 } 5120 5121 void postDelayed(Runnable action, long delayMillis) { 5122 HandlerAction handlerAction = new HandlerAction(); 5123 handlerAction.action = action; 5124 handlerAction.delay = delayMillis; 5125 5126 synchronized (mActions) { 5127 mActions.add(handlerAction); 5128 } 5129 } 5130 5131 void removeCallbacks(Runnable action) { 5132 final HandlerAction handlerAction = new HandlerAction(); 5133 handlerAction.action = action; 5134 5135 synchronized (mActions) { 5136 final ArrayList<HandlerAction> actions = mActions; 5137 5138 while (actions.remove(handlerAction)) { 5139 // Keep going 5140 } 5141 } 5142 } 5143 5144 void executeActions(Handler handler) { 5145 synchronized (mActions) { 5146 final ArrayList<HandlerAction> actions = mActions; 5147 final int count = actions.size(); 5148 5149 for (int i = 0; i < count; i++) { 5150 final HandlerAction handlerAction = actions.get(i); 5151 handler.postDelayed(handlerAction.action, handlerAction.delay); 5152 } 5153 5154 actions.clear(); 5155 } 5156 } 5157 5158 private static class HandlerAction { 5159 Runnable action; 5160 long delay; 5161 5162 @Override 5163 public boolean equals(Object o) { 5164 if (this == o) return true; 5165 if (o == null || getClass() != o.getClass()) return false; 5166 5167 HandlerAction that = (HandlerAction) o; 5168 return !(action != null ? !action.equals(that.action) : that.action != null); 5169 5170 } 5171 5172 @Override 5173 public int hashCode() { 5174 int result = action != null ? action.hashCode() : 0; 5175 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5176 return result; 5177 } 5178 } 5179 } 5180 5181 /** 5182 * Class for managing the accessibility interaction connection 5183 * based on the global accessibility state. 5184 */ 5185 final class AccessibilityInteractionConnectionManager 5186 implements AccessibilityStateChangeListener { 5187 public void onAccessibilityStateChanged(boolean enabled) { 5188 if (enabled) { 5189 ensureConnection(); 5190 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5191 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5192 View focusedView = mView.findFocus(); 5193 if (focusedView != null && focusedView != mView) { 5194 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5195 } 5196 } 5197 } else { 5198 ensureNoConnection(); 5199 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5200 } 5201 } 5202 5203 public void ensureConnection() { 5204 if (mAttachInfo != null) { 5205 final boolean registered = 5206 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5207 if (!registered) { 5208 mAttachInfo.mAccessibilityWindowId = 5209 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5210 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5211 } 5212 } 5213 } 5214 5215 public void ensureNoConnection() { 5216 final boolean registered = 5217 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5218 if (registered) { 5219 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5220 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5221 } 5222 } 5223 } 5224 5225 /** 5226 * This class is an interface this ViewAncestor provides to the 5227 * AccessibilityManagerService to the latter can interact with 5228 * the view hierarchy in this ViewAncestor. 5229 */ 5230 static final class AccessibilityInteractionConnection 5231 extends IAccessibilityInteractionConnection.Stub { 5232 private final WeakReference<ViewRootImpl> mViewRootImpl; 5233 5234 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5235 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5236 } 5237 5238 @Override 5239 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5240 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5241 int interrogatingPid, long interrogatingTid) { 5242 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5243 if (viewRootImpl != null && viewRootImpl.mView != null) { 5244 viewRootImpl.getAccessibilityInteractionController() 5245 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5246 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5247 } else { 5248 // We cannot make the call and notify the caller so it does not wait. 5249 try { 5250 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5251 } catch (RemoteException re) { 5252 /* best effort - ignore */ 5253 } 5254 } 5255 } 5256 5257 @Override 5258 public void performAccessibilityAction(long accessibilityNodeId, int action, 5259 Bundle arguments, int interactionId, 5260 IAccessibilityInteractionConnectionCallback callback, int flags, 5261 int interogatingPid, long interrogatingTid) { 5262 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5263 if (viewRootImpl != null && viewRootImpl.mView != null) { 5264 viewRootImpl.getAccessibilityInteractionController() 5265 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5266 interactionId, callback, flags, interogatingPid, interrogatingTid); 5267 } else { 5268 // We cannot make the call and notify the caller so it does not wait. 5269 try { 5270 callback.setPerformAccessibilityActionResult(false, interactionId); 5271 } catch (RemoteException re) { 5272 /* best effort - ignore */ 5273 } 5274 } 5275 } 5276 5277 @Override 5278 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5279 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5280 int interrogatingPid, long interrogatingTid) { 5281 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5282 if (viewRootImpl != null && viewRootImpl.mView != null) { 5283 viewRootImpl.getAccessibilityInteractionController() 5284 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5285 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5286 } else { 5287 // We cannot make the call and notify the caller so it does not wait. 5288 try { 5289 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5290 } catch (RemoteException re) { 5291 /* best effort - ignore */ 5292 } 5293 } 5294 } 5295 5296 @Override 5297 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5298 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5299 int interrogatingPid, long interrogatingTid) { 5300 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5301 if (viewRootImpl != null && viewRootImpl.mView != null) { 5302 viewRootImpl.getAccessibilityInteractionController() 5303 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5304 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5305 } else { 5306 // We cannot make the call and notify the caller so it does not wait. 5307 try { 5308 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5309 } catch (RemoteException re) { 5310 /* best effort - ignore */ 5311 } 5312 } 5313 } 5314 5315 @Override 5316 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5317 IAccessibilityInteractionConnectionCallback callback, int flags, 5318 int interrogatingPid, long interrogatingTid) { 5319 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5320 if (viewRootImpl != null && viewRootImpl.mView != null) { 5321 viewRootImpl.getAccessibilityInteractionController() 5322 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5323 flags, interrogatingPid, interrogatingTid); 5324 } else { 5325 // We cannot make the call and notify the caller so it does not wait. 5326 try { 5327 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5328 } catch (RemoteException re) { 5329 /* best effort - ignore */ 5330 } 5331 } 5332 } 5333 5334 @Override 5335 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5336 IAccessibilityInteractionConnectionCallback callback, int flags, 5337 int interrogatingPid, long interrogatingTid) { 5338 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5339 if (viewRootImpl != null && viewRootImpl.mView != null) { 5340 viewRootImpl.getAccessibilityInteractionController() 5341 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5342 callback, flags, interrogatingPid, interrogatingTid); 5343 } else { 5344 // We cannot make the call and notify the caller so it does not wait. 5345 try { 5346 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5347 } catch (RemoteException re) { 5348 /* best effort - ignore */ 5349 } 5350 } 5351 } 5352 } 5353 5354 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5355 public View mSource; 5356 5357 public void run() { 5358 if (mSource != null) { 5359 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5360 mSource.resetAccessibilityStateChanged(); 5361 mSource = null; 5362 } 5363 } 5364 } 5365} 5366