ViewRootImpl.java revision cfef12374c15b11b3c2a1041582be9728152e15d
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.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.Process; 50import android.os.RemoteException; 51import android.os.SystemClock; 52import android.os.SystemProperties; 53import android.util.AndroidRuntimeException; 54import android.util.DisplayMetrics; 55import android.util.EventLog; 56import android.util.Log; 57import android.util.LongSparseArray; 58import android.util.Pool; 59import android.util.Poolable; 60import android.util.PoolableManager; 61import android.util.Pools; 62import android.util.Slog; 63import android.util.TypedValue; 64import android.view.View.AttachInfo; 65import android.view.View.MeasureSpec; 66import android.view.accessibility.AccessibilityEvent; 67import android.view.accessibility.AccessibilityInteractionClient; 68import android.view.accessibility.AccessibilityManager; 69import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 70import android.view.accessibility.AccessibilityNodeInfo; 71import android.view.accessibility.AccessibilityNodeProvider; 72import android.view.accessibility.IAccessibilityInteractionConnection; 73import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 74import android.view.animation.AccelerateDecelerateInterpolator; 75import android.view.animation.Interpolator; 76import android.view.inputmethod.InputConnection; 77import android.view.inputmethod.InputMethodManager; 78import android.widget.Scroller; 79 80import com.android.internal.policy.PolicyManager; 81import com.android.internal.view.BaseSurfaceHolder; 82import com.android.internal.view.IInputMethodCallback; 83import com.android.internal.view.IInputMethodSession; 84import com.android.internal.view.RootViewSurfaceTaker; 85 86import java.io.IOException; 87import java.io.OutputStream; 88import java.lang.ref.WeakReference; 89import java.util.ArrayList; 90import java.util.List; 91 92/** 93 * The top of a view hierarchy, implementing the needed protocol between View 94 * and the WindowManager. This is for the most part an internal implementation 95 * detail of {@link WindowManagerImpl}. 96 * 97 * {@hide} 98 */ 99@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 100public final class ViewRootImpl implements ViewParent, 101 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 102 private static final String TAG = "ViewRootImpl"; 103 private static final boolean DBG = false; 104 private static final boolean LOCAL_LOGV = false; 105 /** @noinspection PointlessBooleanExpression*/ 106 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 107 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 108 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 109 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 110 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 112 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 113 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 114 private static final boolean DEBUG_FPS = false; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 121 122 private static final boolean MEASURE_LATENCY = false; 123 private static LatencyTimer lt; 124 125 /** 126 * Maximum time we allow the user to roll the trackball enough to generate 127 * a key event, before resetting the counters. 128 */ 129 static final int MAX_TRACKBALL_DELAY = 250; 130 131 static IWindowSession sWindowSession; 132 133 static final Object mStaticInit = new Object(); 134 static boolean mInitialized = false; 135 136 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 137 138 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 139 static boolean sFirstDrawComplete = false; 140 141 static final ArrayList<ComponentCallbacks> sConfigCallbacks 142 = new ArrayList<ComponentCallbacks>(); 143 144 private static boolean sUseRenderThread = false; 145 private static boolean sRenderThreadQueried = false; 146 private static final Object[] sRenderThreadQueryLock = new Object[0]; 147 148 long mLastTrackballTime = 0; 149 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 150 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 151 152 int mLastJoystickXDirection; 153 int mLastJoystickYDirection; 154 int mLastJoystickXKeyCode; 155 int mLastJoystickYKeyCode; 156 157 final int[] mTmpLocation = new int[2]; 158 159 final TypedValue mTmpValue = new TypedValue(); 160 161 final InputMethodCallback mInputMethodCallback; 162 final Thread mThread; 163 164 final WindowLeaked mLocation; 165 166 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 167 168 final W mWindow; 169 170 final int mTargetSdkVersion; 171 172 int mSeq; 173 174 View mView; 175 View mFocusedView; 176 View mRealFocusedView; // this is not set to null in touch mode 177 View mOldFocusedView; 178 int mViewVisibility; 179 boolean mAppVisible = true; 180 int mOrigWindowType = -1; 181 182 // Set to true if the owner of this window is in the stopped state, 183 // so the window should no longer be active. 184 boolean mStopped = false; 185 186 boolean mLastInCompatMode = false; 187 188 SurfaceHolder.Callback2 mSurfaceHolderCallback; 189 BaseSurfaceHolder mSurfaceHolder; 190 boolean mIsCreating; 191 boolean mDrawingAllowed; 192 193 final Region mTransparentRegion; 194 final Region mPreviousTransparentRegion; 195 196 int mWidth; 197 int mHeight; 198 Rect mDirty; 199 final Rect mCurrentDirty = new Rect(); 200 final Rect mPreviousDirty = new Rect(); 201 boolean mIsAnimating; 202 203 CompatibilityInfo.Translator mTranslator; 204 205 final View.AttachInfo mAttachInfo; 206 InputChannel mInputChannel; 207 InputQueue.Callback mInputQueueCallback; 208 InputQueue mInputQueue; 209 FallbackEventHandler mFallbackEventHandler; 210 Choreographer mChoreographer; 211 212 final Rect mTempRect; // used in the transaction to not thrash the heap. 213 final Rect mVisRect; // used to retrieve visible rect of focused view. 214 215 boolean mTraversalScheduled; 216 int mTraversalBarrier; 217 long mLastTraversalFinishedTimeNanos; 218 long mLastDrawFinishedTimeNanos; 219 boolean mWillDrawSoon; 220 boolean mLayoutRequested; 221 boolean mFirst; 222 boolean mReportNextDraw; 223 boolean mFullRedrawNeeded; 224 boolean mNewSurfaceNeeded; 225 boolean mHasHadWindowFocus; 226 boolean mLastWasImTarget; 227 228 // Pool of queued input events. 229 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 230 private QueuedInputEvent mQueuedInputEventPool; 231 private int mQueuedInputEventPoolSize; 232 233 // Input event queue. 234 QueuedInputEvent mFirstPendingInputEvent; 235 QueuedInputEvent mCurrentInputEvent; 236 boolean mProcessInputEventsScheduled; 237 238 boolean mWindowAttributesChanged = false; 239 int mWindowAttributesChangesFlag = 0; 240 241 // These can be accessed by any thread, must be protected with a lock. 242 // Surface can never be reassigned or cleared (use Surface.clear()). 243 private final Surface mSurface = new Surface(); 244 245 boolean mAdded; 246 boolean mAddedTouchMode; 247 248 CompatibilityInfoHolder mCompatibilityInfo; 249 250 /*package*/ int mAddNesting; 251 252 // These are accessed by multiple threads. 253 final Rect mWinFrame; // frame given by window manager. 254 255 final Rect mPendingVisibleInsets = new Rect(); 256 final Rect mPendingContentInsets = new Rect(); 257 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 258 = new ViewTreeObserver.InternalInsetsInfo(); 259 260 final Configuration mLastConfiguration = new Configuration(); 261 final Configuration mPendingConfiguration = new Configuration(); 262 263 class ResizedInfo { 264 Rect coveredInsets; 265 Rect visibleInsets; 266 Configuration newConfig; 267 } 268 269 boolean mScrollMayChange; 270 int mSoftInputMode; 271 View mLastScrolledFocus; 272 int mScrollY; 273 int mCurScrollY; 274 Scroller mScroller; 275 HardwareLayer mResizeBuffer; 276 long mResizeBufferStartTime; 277 int mResizeBufferDuration; 278 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 279 private ArrayList<LayoutTransition> mPendingTransitions; 280 281 final ViewConfiguration mViewConfiguration; 282 283 /* Drag/drop */ 284 ClipDescription mDragDescription; 285 View mCurrentDragView; 286 volatile Object mLocalDragState; 287 final PointF mDragPoint = new PointF(); 288 final PointF mLastTouchPoint = new PointF(); 289 290 private boolean mProfileRendering; 291 private Thread mRenderProfiler; 292 private volatile boolean mRenderProfilingEnabled; 293 294 // Variables to track frames per second, enabled via DEBUG_FPS flag 295 private long mFpsStartTime = -1; 296 private long mFpsPrevTime = -1; 297 private int mFpsNumFrames; 298 299 /** 300 * see {@link #playSoundEffect(int)} 301 */ 302 AudioManager mAudioManager; 303 304 final AccessibilityManager mAccessibilityManager; 305 306 AccessibilityInteractionController mAccessibilityInteractionController; 307 308 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 309 310 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 311 312 AccessibilityPrefetchStrategy mAccessibilityPrefetchStrategy; 313 314 private final int mDensity; 315 316 /** 317 * Consistency verifier for debugging purposes. 318 */ 319 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 320 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 321 new InputEventConsistencyVerifier(this, 0) : null; 322 323 public static IWindowSession getWindowSession(Looper mainLooper) { 324 synchronized (mStaticInit) { 325 if (!mInitialized) { 326 try { 327 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 328 IWindowManager windowManager = Display.getWindowManager(); 329 sWindowSession = windowManager.openSession( 330 imm.getClient(), imm.getInputContext()); 331 float animatorScale = windowManager.getAnimationScale(2); 332 ValueAnimator.setDurationScale(animatorScale); 333 mInitialized = true; 334 } catch (RemoteException e) { 335 } 336 } 337 return sWindowSession; 338 } 339 } 340 341 static final class SystemUiVisibilityInfo { 342 int seq; 343 int globalVisibility; 344 int localValue; 345 int localChanges; 346 } 347 348 public ViewRootImpl(Context context) { 349 super(); 350 351 if (MEASURE_LATENCY) { 352 if (lt == null) { 353 lt = new LatencyTimer(100, 1000); 354 } 355 } 356 357 // Initialize the statics when this class is first instantiated. This is 358 // done here instead of in the static block because Zygote does not 359 // allow the spawning of threads. 360 getWindowSession(context.getMainLooper()); 361 362 mThread = Thread.currentThread(); 363 mLocation = new WindowLeaked(null); 364 mLocation.fillInStackTrace(); 365 mWidth = -1; 366 mHeight = -1; 367 mDirty = new Rect(); 368 mTempRect = new Rect(); 369 mVisRect = new Rect(); 370 mWinFrame = new Rect(); 371 mWindow = new W(this); 372 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 373 mInputMethodCallback = new InputMethodCallback(this); 374 mViewVisibility = View.GONE; 375 mTransparentRegion = new Region(); 376 mPreviousTransparentRegion = new Region(); 377 mFirst = true; // true for the first time the view is added 378 mAdded = false; 379 mAccessibilityManager = AccessibilityManager.getInstance(context); 380 mAccessibilityInteractionConnectionManager = 381 new AccessibilityInteractionConnectionManager(); 382 mAccessibilityManager.addAccessibilityStateChangeListener( 383 mAccessibilityInteractionConnectionManager); 384 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 385 mViewConfiguration = ViewConfiguration.get(context); 386 mDensity = context.getResources().getDisplayMetrics().densityDpi; 387 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 388 mProfileRendering = Boolean.parseBoolean( 389 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 390 mChoreographer = Choreographer.getInstance(); 391 } 392 393 /** 394 * @return True if the application requests the use of a separate render thread, 395 * false otherwise 396 */ 397 private static boolean isRenderThreadRequested(Context context) { 398 synchronized (sRenderThreadQueryLock) { 399 if (!sRenderThreadQueried) { 400 final PackageManager packageManager = context.getPackageManager(); 401 final String packageName = context.getApplicationInfo().packageName; 402 try { 403 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 404 PackageManager.GET_META_DATA); 405 if (applicationInfo.metaData != null) { 406 sUseRenderThread = applicationInfo.metaData.getBoolean( 407 "android.graphics.renderThread", false); 408 } 409 } catch (PackageManager.NameNotFoundException e) { 410 } finally { 411 sRenderThreadQueried = true; 412 } 413 } 414 return sUseRenderThread; 415 } 416 } 417 418 public static void addFirstDrawHandler(Runnable callback) { 419 synchronized (sFirstDrawHandlers) { 420 if (!sFirstDrawComplete) { 421 sFirstDrawHandlers.add(callback); 422 } 423 } 424 } 425 426 public static void addConfigCallback(ComponentCallbacks callback) { 427 synchronized (sConfigCallbacks) { 428 sConfigCallbacks.add(callback); 429 } 430 } 431 432 // FIXME for perf testing only 433 private boolean mProfile = false; 434 435 /** 436 * Call this to profile the next traversal call. 437 * FIXME for perf testing only. Remove eventually 438 */ 439 public void profile() { 440 mProfile = true; 441 } 442 443 /** 444 * Indicates whether we are in touch mode. Calling this method triggers an IPC 445 * call and should be avoided whenever possible. 446 * 447 * @return True, if the device is in touch mode, false otherwise. 448 * 449 * @hide 450 */ 451 static boolean isInTouchMode() { 452 if (mInitialized) { 453 try { 454 return sWindowSession.getInTouchMode(); 455 } catch (RemoteException e) { 456 } 457 } 458 return false; 459 } 460 461 /** 462 * We have one child 463 */ 464 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 465 synchronized (this) { 466 if (mView == null) { 467 mView = view; 468 mFallbackEventHandler.setView(view); 469 mWindowAttributes.copyFrom(attrs); 470 attrs = mWindowAttributes; 471 472 if (view instanceof RootViewSurfaceTaker) { 473 mSurfaceHolderCallback = 474 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 475 if (mSurfaceHolderCallback != null) { 476 mSurfaceHolder = new TakenSurfaceHolder(); 477 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 478 } 479 } 480 481 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 482 mTranslator = compatibilityInfo.getTranslator(); 483 484 // If the application owns the surface, don't enable hardware acceleration 485 if (mSurfaceHolder == null) { 486 enableHardwareAcceleration(mView.getContext(), attrs); 487 } 488 489 boolean restore = false; 490 if (mTranslator != null) { 491 mSurface.setCompatibilityTranslator(mTranslator); 492 restore = true; 493 attrs.backup(); 494 mTranslator.translateWindowLayout(attrs); 495 } 496 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 497 498 if (!compatibilityInfo.supportsScreen()) { 499 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 500 mLastInCompatMode = true; 501 } 502 503 mSoftInputMode = attrs.softInputMode; 504 mWindowAttributesChanged = true; 505 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 506 mAttachInfo.mRootView = view; 507 mAttachInfo.mScalingRequired = mTranslator != null; 508 mAttachInfo.mApplicationScale = 509 mTranslator == null ? 1.0f : mTranslator.applicationScale; 510 if (panelParentView != null) { 511 mAttachInfo.mPanelParentWindowToken 512 = panelParentView.getApplicationWindowToken(); 513 } 514 mAdded = true; 515 int res; /* = WindowManagerImpl.ADD_OKAY; */ 516 517 // Schedule the first layout -before- adding to the window 518 // manager, to make sure we do the relayout before receiving 519 // any other events from the system. 520 requestLayout(); 521 if ((mWindowAttributes.inputFeatures 522 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 523 mInputChannel = new InputChannel(); 524 } 525 try { 526 mOrigWindowType = mWindowAttributes.type; 527 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 528 getHostVisibility(), mAttachInfo.mContentInsets, 529 mInputChannel); 530 } catch (RemoteException e) { 531 mAdded = false; 532 mView = null; 533 mAttachInfo.mRootView = null; 534 mInputChannel = null; 535 mFallbackEventHandler.setView(null); 536 unscheduleTraversals(); 537 throw new RuntimeException("Adding window failed", e); 538 } finally { 539 if (restore) { 540 attrs.restore(); 541 } 542 } 543 544 if (mTranslator != null) { 545 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 546 } 547 mPendingContentInsets.set(mAttachInfo.mContentInsets); 548 mPendingVisibleInsets.set(0, 0, 0, 0); 549 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 550 if (res < WindowManagerImpl.ADD_OKAY) { 551 mView = null; 552 mAttachInfo.mRootView = null; 553 mAdded = false; 554 mFallbackEventHandler.setView(null); 555 unscheduleTraversals(); 556 switch (res) { 557 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 558 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 559 throw new WindowManagerImpl.BadTokenException( 560 "Unable to add window -- token " + attrs.token 561 + " is not valid; is your activity running?"); 562 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 563 throw new WindowManagerImpl.BadTokenException( 564 "Unable to add window -- token " + attrs.token 565 + " is not for an application"); 566 case WindowManagerImpl.ADD_APP_EXITING: 567 throw new WindowManagerImpl.BadTokenException( 568 "Unable to add window -- app for token " + attrs.token 569 + " is exiting"); 570 case WindowManagerImpl.ADD_DUPLICATE_ADD: 571 throw new WindowManagerImpl.BadTokenException( 572 "Unable to add window -- window " + mWindow 573 + " has already been added"); 574 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 575 // Silently ignore -- we would have just removed it 576 // right away, anyway. 577 return; 578 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 579 throw new WindowManagerImpl.BadTokenException( 580 "Unable to add window " + mWindow + 581 " -- another window of this type already exists"); 582 case WindowManagerImpl.ADD_PERMISSION_DENIED: 583 throw new WindowManagerImpl.BadTokenException( 584 "Unable to add window " + mWindow + 585 " -- permission denied for this window type"); 586 } 587 throw new RuntimeException( 588 "Unable to add window -- unknown error code " + res); 589 } 590 591 if (view instanceof RootViewSurfaceTaker) { 592 mInputQueueCallback = 593 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 594 } 595 if (mInputChannel != null) { 596 if (mInputQueueCallback != null) { 597 mInputQueue = new InputQueue(mInputChannel); 598 mInputQueueCallback.onInputQueueCreated(mInputQueue); 599 } else { 600 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 601 Looper.myLooper()); 602 } 603 } 604 605 view.assignParent(this); 606 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 607 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 608 609 if (mAccessibilityManager.isEnabled()) { 610 mAccessibilityInteractionConnectionManager.ensureConnection(); 611 } 612 } 613 } 614 } 615 616 void destroyHardwareResources() { 617 if (mAttachInfo.mHardwareRenderer != null) { 618 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 619 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 620 } 621 mAttachInfo.mHardwareRenderer.destroy(false); 622 } 623 } 624 625 void terminateHardwareResources() { 626 if (mAttachInfo.mHardwareRenderer != null) { 627 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 628 mAttachInfo.mHardwareRenderer.destroy(false); 629 } 630 } 631 632 void destroyHardwareLayers() { 633 if (mThread != Thread.currentThread()) { 634 if (mAttachInfo.mHardwareRenderer != null && 635 mAttachInfo.mHardwareRenderer.isEnabled()) { 636 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 637 } 638 } else { 639 if (mAttachInfo.mHardwareRenderer != null && 640 mAttachInfo.mHardwareRenderer.isEnabled()) { 641 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 642 } 643 } 644 } 645 646 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 647 mAttachInfo.mHardwareAccelerated = false; 648 mAttachInfo.mHardwareAccelerationRequested = false; 649 650 // Don't enable hardware acceleration when the application is in compatibility mode 651 if (mTranslator != null) return; 652 653 // Try to enable hardware acceleration if requested 654 final boolean hardwareAccelerated = 655 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 656 657 if (hardwareAccelerated) { 658 if (!HardwareRenderer.isAvailable()) { 659 return; 660 } 661 662 // Persistent processes (including the system) should not do 663 // accelerated rendering on low-end devices. In that case, 664 // sRendererDisabled will be set. In addition, the system process 665 // itself should never do accelerated rendering. In that case, both 666 // sRendererDisabled and sSystemRendererDisabled are set. When 667 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 668 // can be used by code on the system process to escape that and enable 669 // HW accelerated drawing. (This is basically for the lock screen.) 670 671 final boolean fakeHwAccelerated = (attrs.privateFlags & 672 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 673 final boolean forceHwAccelerated = (attrs.privateFlags & 674 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 675 676 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 677 && forceHwAccelerated)) { 678 // Don't enable hardware acceleration when we're not on the main thread 679 if (!HardwareRenderer.sSystemRendererDisabled && 680 Looper.getMainLooper() != Looper.myLooper()) { 681 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 682 + "acceleration outside of the main thread, aborting"); 683 return; 684 } 685 686 boolean renderThread = isRenderThreadRequested(context); 687 if (renderThread) { 688 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 689 } 690 691 if (mAttachInfo.mHardwareRenderer != null) { 692 mAttachInfo.mHardwareRenderer.destroy(true); 693 } 694 695 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 696 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 697 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 698 = mAttachInfo.mHardwareRenderer != null; 699 700 } else if (fakeHwAccelerated) { 701 // The window had wanted to use hardware acceleration, but this 702 // is not allowed in its process. By setting this flag, it can 703 // still render as if it was accelerated. This is basically for 704 // the preview windows the window manager shows for launching 705 // applications, so they will look more like the app being launched. 706 mAttachInfo.mHardwareAccelerationRequested = true; 707 } 708 } 709 } 710 711 public View getView() { 712 return mView; 713 } 714 715 final WindowLeaked getLocation() { 716 return mLocation; 717 } 718 719 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 720 synchronized (this) { 721 int oldSoftInputMode = mWindowAttributes.softInputMode; 722 // preserve compatible window flag if exists. 723 int compatibleWindowFlag = 724 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 725 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 726 mWindowAttributes.flags |= compatibleWindowFlag; 727 728 if (newView) { 729 mSoftInputMode = attrs.softInputMode; 730 requestLayout(); 731 } 732 // Don't lose the mode we last auto-computed. 733 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 734 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 735 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 736 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 737 | (oldSoftInputMode 738 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 739 } 740 mWindowAttributesChanged = true; 741 scheduleTraversals(); 742 } 743 } 744 745 void handleAppVisibility(boolean visible) { 746 if (mAppVisible != visible) { 747 mAppVisible = visible; 748 scheduleTraversals(); 749 } 750 } 751 752 void handleGetNewSurface() { 753 mNewSurfaceNeeded = true; 754 mFullRedrawNeeded = true; 755 scheduleTraversals(); 756 } 757 758 /** 759 * {@inheritDoc} 760 */ 761 public void requestLayout() { 762 checkThread(); 763 mLayoutRequested = true; 764 scheduleTraversals(); 765 } 766 767 /** 768 * {@inheritDoc} 769 */ 770 public boolean isLayoutRequested() { 771 return mLayoutRequested; 772 } 773 774 void invalidate() { 775 mDirty.set(0, 0, mWidth, mHeight); 776 scheduleTraversals(); 777 } 778 779 public void invalidateChild(View child, Rect dirty) { 780 invalidateChildInParent(null, dirty); 781 } 782 783 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 784 checkThread(); 785 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 786 787 if (dirty == null) { 788 invalidate(); 789 return null; 790 } 791 792 if (mCurScrollY != 0 || mTranslator != null) { 793 mTempRect.set(dirty); 794 dirty = mTempRect; 795 if (mCurScrollY != 0) { 796 dirty.offset(0, -mCurScrollY); 797 } 798 if (mTranslator != null) { 799 mTranslator.translateRectInAppWindowToScreen(dirty); 800 } 801 if (mAttachInfo.mScalingRequired) { 802 dirty.inset(-1, -1); 803 } 804 } 805 806 final Rect localDirty = mDirty; 807 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 808 mAttachInfo.mSetIgnoreDirtyState = true; 809 mAttachInfo.mIgnoreDirtyState = true; 810 } 811 812 // Add the new dirty rect to the current one 813 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 814 // Intersect with the bounds of the window to skip 815 // updates that lie outside of the visible region 816 localDirty.intersect(0, 0, mWidth, mHeight); 817 818 if (!mWillDrawSoon) { 819 scheduleTraversals(); 820 } 821 822 return null; 823 } 824 825 void setStopped(boolean stopped) { 826 if (mStopped != stopped) { 827 mStopped = stopped; 828 if (!stopped) { 829 scheduleTraversals(); 830 } 831 } 832 } 833 834 public ViewParent getParent() { 835 return null; 836 } 837 838 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 839 if (child != mView) { 840 throw new RuntimeException("child is not mine, honest!"); 841 } 842 // Note: don't apply scroll offset, because we want to know its 843 // visibility in the virtual canvas being given to the view hierarchy. 844 return r.intersect(0, 0, mWidth, mHeight); 845 } 846 847 public void bringChildToFront(View child) { 848 } 849 850 public void scheduleTraversals() { 851 if (!mTraversalScheduled) { 852 mTraversalScheduled = true; 853 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 854 scheduleFrame(); 855 } 856 } 857 858 public void unscheduleTraversals() { 859 if (mTraversalScheduled) { 860 mTraversalScheduled = false; 861 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 862 } 863 } 864 865 void scheduleFrame() { 866 if (!mFrameScheduled) { 867 mFrameScheduled = true; 868 mChoreographer.postDrawCallback(mFrameRunnable); 869 } 870 } 871 872 void unscheduleFrame() { 873 unscheduleTraversals(); 874 875 if (mFrameScheduled) { 876 mFrameScheduled = false; 877 mChoreographer.removeDrawCallback(mFrameRunnable); 878 } 879 } 880 881 void doFrame() { 882 if (mInputEventReceiver != null) { 883 mInputEventReceiver.consumeBatchedInputEvents(); 884 } 885 doProcessInputEvents(); 886 887 if (mTraversalScheduled) { 888 mTraversalScheduled = false; 889 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 890 doTraversal(); 891 } 892 } 893 894 int getHostVisibility() { 895 return mAppVisible ? mView.getVisibility() : View.GONE; 896 } 897 898 void disposeResizeBuffer() { 899 if (mResizeBuffer != null) { 900 mResizeBuffer.destroy(); 901 mResizeBuffer = null; 902 } 903 } 904 905 /** 906 * Add LayoutTransition to the list of transitions to be started in the next traversal. 907 * This list will be cleared after the transitions on the list are start()'ed. These 908 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 909 * happens during the layout phase of traversal, which we want to complete before any of the 910 * animations are started (because those animations may side-effect properties that layout 911 * depends upon, like the bounding rectangles of the affected views). So we add the transition 912 * to the list and it is started just prior to starting the drawing phase of traversal. 913 * 914 * @param transition The LayoutTransition to be started on the next traversal. 915 * 916 * @hide 917 */ 918 public void requestTransitionStart(LayoutTransition transition) { 919 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 920 if (mPendingTransitions == null) { 921 mPendingTransitions = new ArrayList<LayoutTransition>(); 922 } 923 mPendingTransitions.add(transition); 924 } 925 } 926 927 private void doTraversal() { 928 if (mProfile) { 929 Debug.startMethodTracing("ViewAncestor"); 930 } 931 932 final long traversalStartTime; 933 if (ViewDebug.DEBUG_LATENCY) { 934 traversalStartTime = System.nanoTime(); 935 if (mLastTraversalFinishedTimeNanos != 0) { 936 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 937 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 938 + "ms since the last traversals finished."); 939 } else { 940 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 941 } 942 } 943 944 performTraversals(); 945 946 if (ViewDebug.DEBUG_LATENCY) { 947 long now = System.nanoTime(); 948 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 949 + ((now - traversalStartTime) * 0.000001f) 950 + "ms."); 951 mLastTraversalFinishedTimeNanos = now; 952 } 953 954 if (mProfile) { 955 Debug.stopMethodTracing(); 956 mProfile = false; 957 } 958 } 959 960 private void performTraversals() { 961 // cache mView since it is used so much below... 962 final View host = mView; 963 964 if (DBG) { 965 System.out.println("======================================"); 966 System.out.println("performTraversals"); 967 host.debug(); 968 } 969 970 if (host == null || !mAdded) 971 return; 972 973 mWillDrawSoon = true; 974 boolean windowSizeMayChange = false; 975 boolean newSurface = false; 976 boolean surfaceChanged = false; 977 WindowManager.LayoutParams lp = mWindowAttributes; 978 979 int desiredWindowWidth; 980 int desiredWindowHeight; 981 int childWidthMeasureSpec; 982 int childHeightMeasureSpec; 983 984 final View.AttachInfo attachInfo = mAttachInfo; 985 986 final int viewVisibility = getHostVisibility(); 987 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 988 || mNewSurfaceNeeded; 989 990 WindowManager.LayoutParams params = null; 991 if (mWindowAttributesChanged) { 992 mWindowAttributesChanged = false; 993 surfaceChanged = true; 994 params = lp; 995 } 996 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 997 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 998 params = lp; 999 mFullRedrawNeeded = true; 1000 mLayoutRequested = true; 1001 if (mLastInCompatMode) { 1002 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1003 mLastInCompatMode = false; 1004 } else { 1005 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1006 mLastInCompatMode = true; 1007 } 1008 } 1009 1010 mWindowAttributesChangesFlag = 0; 1011 1012 Rect frame = mWinFrame; 1013 if (mFirst) { 1014 mFullRedrawNeeded = true; 1015 mLayoutRequested = true; 1016 1017 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1018 // NOTE -- system code, won't try to do compat mode. 1019 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1020 Point size = new Point(); 1021 disp.getRealSize(size); 1022 desiredWindowWidth = size.x; 1023 desiredWindowHeight = size.y; 1024 } else { 1025 DisplayMetrics packageMetrics = 1026 mView.getContext().getResources().getDisplayMetrics(); 1027 desiredWindowWidth = packageMetrics.widthPixels; 1028 desiredWindowHeight = packageMetrics.heightPixels; 1029 } 1030 1031 // For the very first time, tell the view hierarchy that it 1032 // is attached to the window. Note that at this point the surface 1033 // object is not initialized to its backing store, but soon it 1034 // will be (assuming the window is visible). 1035 attachInfo.mSurface = mSurface; 1036 // We used to use the following condition to choose 32 bits drawing caches: 1037 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1038 // However, windows are now always 32 bits by default, so choose 32 bits 1039 attachInfo.mUse32BitDrawingCache = true; 1040 attachInfo.mHasWindowFocus = false; 1041 attachInfo.mWindowVisibility = viewVisibility; 1042 attachInfo.mRecomputeGlobalAttributes = false; 1043 attachInfo.mKeepScreenOn = false; 1044 attachInfo.mSystemUiVisibility = 0; 1045 viewVisibilityChanged = false; 1046 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1047 host.dispatchAttachedToWindow(attachInfo, 0); 1048 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1049 1050 host.fitSystemWindows(mAttachInfo.mContentInsets); 1051 1052 } else { 1053 desiredWindowWidth = frame.width(); 1054 desiredWindowHeight = frame.height(); 1055 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1056 if (DEBUG_ORIENTATION) Log.v(TAG, 1057 "View " + host + " resized to: " + frame); 1058 mFullRedrawNeeded = true; 1059 mLayoutRequested = true; 1060 windowSizeMayChange = true; 1061 } 1062 } 1063 1064 if (viewVisibilityChanged) { 1065 attachInfo.mWindowVisibility = viewVisibility; 1066 host.dispatchWindowVisibilityChanged(viewVisibility); 1067 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1068 destroyHardwareResources(); 1069 } 1070 if (viewVisibility == View.GONE) { 1071 // After making a window gone, we will count it as being 1072 // shown for the first time the next time it gets focus. 1073 mHasHadWindowFocus = false; 1074 } 1075 } 1076 1077 boolean insetsChanged = false; 1078 1079 if (mLayoutRequested && !mStopped) { 1080 // Execute enqueued actions on every layout in case a view that was detached 1081 // enqueued an action after being detached 1082 getRunQueue().executeActions(attachInfo.mHandler); 1083 1084 final Resources res = mView.getContext().getResources(); 1085 1086 if (mFirst) { 1087 // make sure touch mode code executes by setting cached value 1088 // to opposite of the added touch mode. 1089 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1090 ensureTouchModeLocally(mAddedTouchMode); 1091 } else { 1092 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1093 insetsChanged = true; 1094 } 1095 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1096 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1097 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1098 + mAttachInfo.mVisibleInsets); 1099 } 1100 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1101 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1102 windowSizeMayChange = true; 1103 1104 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1105 // NOTE -- system code, won't try to do compat mode. 1106 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1107 Point size = new Point(); 1108 disp.getRealSize(size); 1109 desiredWindowWidth = size.x; 1110 desiredWindowHeight = size.y; 1111 } else { 1112 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1113 desiredWindowWidth = packageMetrics.widthPixels; 1114 desiredWindowHeight = packageMetrics.heightPixels; 1115 } 1116 } 1117 } 1118 1119 // Ask host how big it wants to be 1120 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1121 "Measuring " + host + " in display " + desiredWindowWidth 1122 + "x" + desiredWindowHeight + "..."); 1123 1124 boolean goodMeasure = false; 1125 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1126 // On large screens, we don't want to allow dialogs to just 1127 // stretch to fill the entire width of the screen to display 1128 // one line of text. First try doing the layout at a smaller 1129 // size to see if it will fit. 1130 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1131 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1132 int baseSize = 0; 1133 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1134 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1135 } 1136 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1137 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1138 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1139 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1140 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1141 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1142 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1143 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1144 goodMeasure = true; 1145 } else { 1146 // Didn't fit in that size... try expanding a bit. 1147 baseSize = (baseSize+desiredWindowWidth)/2; 1148 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1149 + baseSize); 1150 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1151 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1152 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1153 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1154 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1155 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1156 goodMeasure = true; 1157 } 1158 } 1159 } 1160 } 1161 1162 if (!goodMeasure) { 1163 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1164 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1165 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1166 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1167 windowSizeMayChange = true; 1168 } 1169 } 1170 1171 if (DBG) { 1172 System.out.println("======================================"); 1173 System.out.println("performTraversals -- after measure"); 1174 host.debug(); 1175 } 1176 } 1177 1178 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1179 //Log.i(TAG, "Computing view hierarchy attributes!"); 1180 attachInfo.mRecomputeGlobalAttributes = false; 1181 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1182 int oldVis = attachInfo.mSystemUiVisibility; 1183 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1184 attachInfo.mKeepScreenOn = false; 1185 attachInfo.mSystemUiVisibility = 0; 1186 attachInfo.mHasSystemUiListeners = false; 1187 host.dispatchCollectViewAttributes(0); 1188 if (attachInfo.mKeepScreenOn != oldScreenOn 1189 || attachInfo.mSystemUiVisibility != oldVis 1190 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1191 params = lp; 1192 } 1193 } 1194 if (attachInfo.mForceReportNewAttributes) { 1195 attachInfo.mForceReportNewAttributes = false; 1196 params = lp; 1197 } 1198 1199 if (mFirst || attachInfo.mViewVisibilityChanged) { 1200 attachInfo.mViewVisibilityChanged = false; 1201 int resizeMode = mSoftInputMode & 1202 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1203 // If we are in auto resize mode, then we need to determine 1204 // what mode to use now. 1205 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1206 final int N = attachInfo.mScrollContainers.size(); 1207 for (int i=0; i<N; i++) { 1208 if (attachInfo.mScrollContainers.get(i).isShown()) { 1209 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1210 } 1211 } 1212 if (resizeMode == 0) { 1213 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1214 } 1215 if ((lp.softInputMode & 1216 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1217 lp.softInputMode = (lp.softInputMode & 1218 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1219 resizeMode; 1220 params = lp; 1221 } 1222 } 1223 } 1224 1225 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1226 if (!PixelFormat.formatHasAlpha(params.format)) { 1227 params.format = PixelFormat.TRANSLUCENT; 1228 } 1229 } 1230 1231 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1232 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1233 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1234 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1235 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1236 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1237 1238 final boolean computesInternalInsets = 1239 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1240 1241 boolean insetsPending = false; 1242 int relayoutResult = 0; 1243 1244 if (mFirst || windowShouldResize || insetsChanged || 1245 viewVisibilityChanged || params != null) { 1246 1247 if (viewVisibility == View.VISIBLE) { 1248 // If this window is giving internal insets to the window 1249 // manager, and it is being added or changing its visibility, 1250 // then we want to first give the window manager "fake" 1251 // insets to cause it to effectively ignore the content of 1252 // the window during layout. This avoids it briefly causing 1253 // other windows to resize/move based on the raw frame of the 1254 // window, waiting until we can finish laying out this window 1255 // and get back to the window manager with the ultimately 1256 // computed insets. 1257 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1258 } 1259 1260 if (mSurfaceHolder != null) { 1261 mSurfaceHolder.mSurfaceLock.lock(); 1262 mDrawingAllowed = true; 1263 } 1264 1265 boolean hwInitialized = false; 1266 boolean contentInsetsChanged = false; 1267 boolean visibleInsetsChanged; 1268 boolean hadSurface = mSurface.isValid(); 1269 1270 try { 1271 int fl = 0; 1272 if (params != null) { 1273 fl = params.flags; 1274 if (attachInfo.mKeepScreenOn) { 1275 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1276 } 1277 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1278 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1279 } 1280 if (DEBUG_LAYOUT) { 1281 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1282 host.getMeasuredHeight() + ", params=" + params); 1283 } 1284 1285 final int surfaceGenerationId = mSurface.getGenerationId(); 1286 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1287 1288 if (params != null) { 1289 params.flags = fl; 1290 } 1291 1292 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1293 + " content=" + mPendingContentInsets.toShortString() 1294 + " visible=" + mPendingVisibleInsets.toShortString() 1295 + " surface=" + mSurface); 1296 1297 if (mPendingConfiguration.seq != 0) { 1298 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1299 + mPendingConfiguration); 1300 updateConfiguration(mPendingConfiguration, !mFirst); 1301 mPendingConfiguration.seq = 0; 1302 } 1303 1304 contentInsetsChanged = !mPendingContentInsets.equals( 1305 mAttachInfo.mContentInsets); 1306 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1307 mAttachInfo.mVisibleInsets); 1308 if (contentInsetsChanged) { 1309 if (mWidth > 0 && mHeight > 0 && 1310 mSurface != null && mSurface.isValid() && 1311 !mAttachInfo.mTurnOffWindowResizeAnim && 1312 mAttachInfo.mHardwareRenderer != null && 1313 mAttachInfo.mHardwareRenderer.isEnabled() && 1314 mAttachInfo.mHardwareRenderer.validate() && 1315 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1316 1317 disposeResizeBuffer(); 1318 1319 boolean completed = false; 1320 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1321 HardwareCanvas layerCanvas = null; 1322 try { 1323 if (mResizeBuffer == null) { 1324 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1325 mWidth, mHeight, false); 1326 } else if (mResizeBuffer.getWidth() != mWidth || 1327 mResizeBuffer.getHeight() != mHeight) { 1328 mResizeBuffer.resize(mWidth, mHeight); 1329 } 1330 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1331 layerCanvas.setViewport(mWidth, mHeight); 1332 layerCanvas.onPreDraw(null); 1333 final int restoreCount = layerCanvas.save(); 1334 1335 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1336 1337 int yoff; 1338 final boolean scrolling = mScroller != null 1339 && mScroller.computeScrollOffset(); 1340 if (scrolling) { 1341 yoff = mScroller.getCurrY(); 1342 mScroller.abortAnimation(); 1343 } else { 1344 yoff = mScrollY; 1345 } 1346 1347 layerCanvas.translate(0, -yoff); 1348 if (mTranslator != null) { 1349 mTranslator.translateCanvas(layerCanvas); 1350 } 1351 1352 mView.draw(layerCanvas); 1353 1354 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1355 mResizeBufferDuration = mView.getResources().getInteger( 1356 com.android.internal.R.integer.config_mediumAnimTime); 1357 completed = true; 1358 1359 layerCanvas.restoreToCount(restoreCount); 1360 } catch (OutOfMemoryError e) { 1361 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1362 } finally { 1363 if (layerCanvas != null) { 1364 layerCanvas.onPostDraw(); 1365 } 1366 if (mResizeBuffer != null) { 1367 mResizeBuffer.end(hwRendererCanvas); 1368 if (!completed) { 1369 mResizeBuffer.destroy(); 1370 mResizeBuffer = null; 1371 } 1372 } 1373 } 1374 } 1375 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1376 host.fitSystemWindows(mAttachInfo.mContentInsets); 1377 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1378 + mAttachInfo.mContentInsets); 1379 } 1380 if (visibleInsetsChanged) { 1381 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1382 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1383 + mAttachInfo.mVisibleInsets); 1384 } 1385 1386 if (!hadSurface) { 1387 if (mSurface.isValid()) { 1388 // If we are creating a new surface, then we need to 1389 // completely redraw it. Also, when we get to the 1390 // point of drawing it we will hold off and schedule 1391 // a new traversal instead. This is so we can tell the 1392 // window manager about all of the windows being displayed 1393 // before actually drawing them, so it can display then 1394 // all at once. 1395 newSurface = true; 1396 mFullRedrawNeeded = true; 1397 mPreviousTransparentRegion.setEmpty(); 1398 1399 if (mAttachInfo.mHardwareRenderer != null) { 1400 try { 1401 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1402 } catch (Surface.OutOfResourcesException e) { 1403 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1404 try { 1405 if (!sWindowSession.outOfMemory(mWindow)) { 1406 Slog.w(TAG, "No processes killed for memory; killing self"); 1407 Process.killProcess(Process.myPid()); 1408 } 1409 } catch (RemoteException ex) { 1410 } 1411 mLayoutRequested = true; // ask wm for a new surface next time. 1412 return; 1413 } 1414 } 1415 } 1416 } else if (!mSurface.isValid()) { 1417 // If the surface has been removed, then reset the scroll 1418 // positions. 1419 mLastScrolledFocus = null; 1420 mScrollY = mCurScrollY = 0; 1421 if (mScroller != null) { 1422 mScroller.abortAnimation(); 1423 } 1424 disposeResizeBuffer(); 1425 // Our surface is gone 1426 if (mAttachInfo.mHardwareRenderer != null && 1427 mAttachInfo.mHardwareRenderer.isEnabled()) { 1428 mAttachInfo.mHardwareRenderer.destroy(true); 1429 } 1430 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1431 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1432 mFullRedrawNeeded = true; 1433 try { 1434 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1435 } catch (Surface.OutOfResourcesException e) { 1436 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1437 try { 1438 if (!sWindowSession.outOfMemory(mWindow)) { 1439 Slog.w(TAG, "No processes killed for memory; killing self"); 1440 Process.killProcess(Process.myPid()); 1441 } 1442 } catch (RemoteException ex) { 1443 } 1444 mLayoutRequested = true; // ask wm for a new surface next time. 1445 return; 1446 } 1447 } 1448 } catch (RemoteException e) { 1449 } 1450 1451 if (DEBUG_ORIENTATION) Log.v( 1452 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1453 1454 attachInfo.mWindowLeft = frame.left; 1455 attachInfo.mWindowTop = frame.top; 1456 1457 // !!FIXME!! This next section handles the case where we did not get the 1458 // window size we asked for. We should avoid this by getting a maximum size from 1459 // the window session beforehand. 1460 mWidth = frame.width(); 1461 mHeight = frame.height(); 1462 1463 if (mSurfaceHolder != null) { 1464 // The app owns the surface; tell it about what is going on. 1465 if (mSurface.isValid()) { 1466 // XXX .copyFrom() doesn't work! 1467 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1468 mSurfaceHolder.mSurface = mSurface; 1469 } 1470 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1471 mSurfaceHolder.mSurfaceLock.unlock(); 1472 if (mSurface.isValid()) { 1473 if (!hadSurface) { 1474 mSurfaceHolder.ungetCallbacks(); 1475 1476 mIsCreating = true; 1477 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1478 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1479 if (callbacks != null) { 1480 for (SurfaceHolder.Callback c : callbacks) { 1481 c.surfaceCreated(mSurfaceHolder); 1482 } 1483 } 1484 surfaceChanged = true; 1485 } 1486 if (surfaceChanged) { 1487 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1488 lp.format, mWidth, mHeight); 1489 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1490 if (callbacks != null) { 1491 for (SurfaceHolder.Callback c : callbacks) { 1492 c.surfaceChanged(mSurfaceHolder, lp.format, 1493 mWidth, mHeight); 1494 } 1495 } 1496 } 1497 mIsCreating = false; 1498 } else if (hadSurface) { 1499 mSurfaceHolder.ungetCallbacks(); 1500 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1501 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1502 if (callbacks != null) { 1503 for (SurfaceHolder.Callback c : callbacks) { 1504 c.surfaceDestroyed(mSurfaceHolder); 1505 } 1506 } 1507 mSurfaceHolder.mSurfaceLock.lock(); 1508 try { 1509 mSurfaceHolder.mSurface = new Surface(); 1510 } finally { 1511 mSurfaceHolder.mSurfaceLock.unlock(); 1512 } 1513 } 1514 } 1515 1516 if (mAttachInfo.mHardwareRenderer != null && 1517 mAttachInfo.mHardwareRenderer.isEnabled()) { 1518 if (hwInitialized || windowShouldResize || 1519 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1520 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1521 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1522 if (!hwInitialized) { 1523 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1524 } 1525 } 1526 } 1527 1528 if (!mStopped) { 1529 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1530 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1531 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1532 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1533 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1534 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1535 1536 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1537 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1538 + " mHeight=" + mHeight 1539 + " measuredHeight=" + host.getMeasuredHeight() 1540 + " coveredInsetsChanged=" + contentInsetsChanged); 1541 1542 // Ask host how big it wants to be 1543 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1544 1545 // Implementation of weights from WindowManager.LayoutParams 1546 // We just grow the dimensions as needed and re-measure if 1547 // needs be 1548 int width = host.getMeasuredWidth(); 1549 int height = host.getMeasuredHeight(); 1550 boolean measureAgain = false; 1551 1552 if (lp.horizontalWeight > 0.0f) { 1553 width += (int) ((mWidth - width) * lp.horizontalWeight); 1554 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1555 MeasureSpec.EXACTLY); 1556 measureAgain = true; 1557 } 1558 if (lp.verticalWeight > 0.0f) { 1559 height += (int) ((mHeight - height) * lp.verticalWeight); 1560 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1561 MeasureSpec.EXACTLY); 1562 measureAgain = true; 1563 } 1564 1565 if (measureAgain) { 1566 if (DEBUG_LAYOUT) Log.v(TAG, 1567 "And hey let's measure once more: width=" + width 1568 + " height=" + height); 1569 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1570 } 1571 1572 mLayoutRequested = true; 1573 } 1574 } 1575 } 1576 1577 final boolean didLayout = mLayoutRequested && !mStopped; 1578 boolean triggerGlobalLayoutListener = didLayout 1579 || attachInfo.mRecomputeGlobalAttributes; 1580 if (didLayout) { 1581 mLayoutRequested = false; 1582 mScrollMayChange = true; 1583 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1584 TAG, "Laying out " + host + " to (" + 1585 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1586 long startTime = 0L; 1587 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1588 startTime = SystemClock.elapsedRealtime(); 1589 } 1590 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1591 1592 if (false && ViewDebug.consistencyCheckEnabled) { 1593 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1594 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1595 + "please refer to the logs with the tag " 1596 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1597 } 1598 } 1599 1600 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1601 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1602 } 1603 1604 // By this point all views have been sized and positionned 1605 // We can compute the transparent area 1606 1607 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1608 // start out transparent 1609 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1610 host.getLocationInWindow(mTmpLocation); 1611 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1612 mTmpLocation[0] + host.mRight - host.mLeft, 1613 mTmpLocation[1] + host.mBottom - host.mTop); 1614 1615 host.gatherTransparentRegion(mTransparentRegion); 1616 if (mTranslator != null) { 1617 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1618 } 1619 1620 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1621 mPreviousTransparentRegion.set(mTransparentRegion); 1622 // reconfigure window manager 1623 try { 1624 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1625 } catch (RemoteException e) { 1626 } 1627 } 1628 } 1629 1630 if (DBG) { 1631 System.out.println("======================================"); 1632 System.out.println("performTraversals -- after setFrame"); 1633 host.debug(); 1634 } 1635 } 1636 1637 if (triggerGlobalLayoutListener) { 1638 attachInfo.mRecomputeGlobalAttributes = false; 1639 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1640 1641 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1642 postSendWindowContentChangedCallback(); 1643 } 1644 } 1645 1646 if (computesInternalInsets) { 1647 // Clear the original insets. 1648 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1649 insets.reset(); 1650 1651 // Compute new insets in place. 1652 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1653 1654 // Tell the window manager. 1655 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1656 mLastGivenInsets.set(insets); 1657 1658 // Translate insets to screen coordinates if needed. 1659 final Rect contentInsets; 1660 final Rect visibleInsets; 1661 final Region touchableRegion; 1662 if (mTranslator != null) { 1663 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1664 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1665 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1666 } else { 1667 contentInsets = insets.contentInsets; 1668 visibleInsets = insets.visibleInsets; 1669 touchableRegion = insets.touchableRegion; 1670 } 1671 1672 try { 1673 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1674 contentInsets, visibleInsets, touchableRegion); 1675 } catch (RemoteException e) { 1676 } 1677 } 1678 } 1679 1680 if (mFirst) { 1681 // handle first focus request 1682 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1683 + mView.hasFocus()); 1684 if (mView != null) { 1685 if (!mView.hasFocus()) { 1686 mView.requestFocus(View.FOCUS_FORWARD); 1687 mFocusedView = mRealFocusedView = mView.findFocus(); 1688 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1689 + mFocusedView); 1690 } else { 1691 mRealFocusedView = mView.findFocus(); 1692 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1693 + mRealFocusedView); 1694 } 1695 } 1696 } 1697 1698 mFirst = false; 1699 mWillDrawSoon = false; 1700 mNewSurfaceNeeded = false; 1701 mViewVisibility = viewVisibility; 1702 1703 if (mAttachInfo.mHasWindowFocus) { 1704 final boolean imTarget = WindowManager.LayoutParams 1705 .mayUseInputMethod(mWindowAttributes.flags); 1706 if (imTarget != mLastWasImTarget) { 1707 mLastWasImTarget = imTarget; 1708 InputMethodManager imm = InputMethodManager.peekInstance(); 1709 if (imm != null && imTarget) { 1710 imm.startGettingWindowFocus(mView); 1711 imm.onWindowFocus(mView, mView.findFocus(), 1712 mWindowAttributes.softInputMode, 1713 !mHasHadWindowFocus, mWindowAttributes.flags); 1714 } 1715 } 1716 } 1717 1718 // Remember if we must report the next draw. 1719 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1720 mReportNextDraw = true; 1721 } 1722 1723 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1724 viewVisibility != View.VISIBLE; 1725 1726 if (!cancelDraw && !newSurface) { 1727 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1728 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1729 mPendingTransitions.get(i).startChangingAnimations(); 1730 } 1731 mPendingTransitions.clear(); 1732 } 1733 1734 performDraw(); 1735 } else { 1736 // End any pending transitions on this non-visible window 1737 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1738 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1739 mPendingTransitions.get(i).endChangingAnimations(); 1740 } 1741 mPendingTransitions.clear(); 1742 } 1743 1744 if (viewVisibility == View.VISIBLE) { 1745 // Try again 1746 scheduleTraversals(); 1747 } 1748 } 1749 } 1750 1751 public void requestTransparentRegion(View child) { 1752 // the test below should not fail unless someone is messing with us 1753 checkThread(); 1754 if (mView == child) { 1755 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1756 // Need to make sure we re-evaluate the window attributes next 1757 // time around, to ensure the window has the correct format. 1758 mWindowAttributesChanged = true; 1759 mWindowAttributesChangesFlag = 0; 1760 requestLayout(); 1761 } 1762 } 1763 1764 /** 1765 * Figures out the measure spec for the root view in a window based on it's 1766 * layout params. 1767 * 1768 * @param windowSize 1769 * The available width or height of the window 1770 * 1771 * @param rootDimension 1772 * The layout params for one dimension (width or height) of the 1773 * window. 1774 * 1775 * @return The measure spec to use to measure the root view. 1776 */ 1777 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1778 int measureSpec; 1779 switch (rootDimension) { 1780 1781 case ViewGroup.LayoutParams.MATCH_PARENT: 1782 // Window can't resize. Force root view to be windowSize. 1783 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1784 break; 1785 case ViewGroup.LayoutParams.WRAP_CONTENT: 1786 // Window can resize. Set max size for root view. 1787 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1788 break; 1789 default: 1790 // Window wants to be an exact size. Force root view to be that size. 1791 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1792 break; 1793 } 1794 return measureSpec; 1795 } 1796 1797 int mHardwareYOffset; 1798 int mResizeAlpha; 1799 final Paint mResizePaint = new Paint(); 1800 1801 public void onHardwarePreDraw(HardwareCanvas canvas) { 1802 canvas.translate(0, -mHardwareYOffset); 1803 } 1804 1805 public void onHardwarePostDraw(HardwareCanvas canvas) { 1806 if (mResizeBuffer != null) { 1807 mResizePaint.setAlpha(mResizeAlpha); 1808 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1809 } 1810 } 1811 1812 /** 1813 * @hide 1814 */ 1815 void outputDisplayList(View view) { 1816 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1817 DisplayList displayList = view.getDisplayList(); 1818 if (displayList != null) { 1819 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1820 } 1821 } 1822 } 1823 1824 /** 1825 * @see #PROPERTY_PROFILE_RENDERING 1826 */ 1827 private void profileRendering(boolean enabled) { 1828 if (mProfileRendering) { 1829 mRenderProfilingEnabled = enabled; 1830 if (mRenderProfiler == null) { 1831 mRenderProfiler = new Thread(new Runnable() { 1832 @Override 1833 public void run() { 1834 Log.d(TAG, "Starting profiling thread"); 1835 while (mRenderProfilingEnabled) { 1836 mAttachInfo.mHandler.post(new Runnable() { 1837 @Override 1838 public void run() { 1839 mDirty.set(0, 0, mWidth, mHeight); 1840 scheduleTraversals(); 1841 } 1842 }); 1843 try { 1844 // TODO: This should use vsync when we get an API 1845 Thread.sleep(15); 1846 } catch (InterruptedException e) { 1847 Log.d(TAG, "Exiting profiling thread"); 1848 } 1849 } 1850 } 1851 }, "Rendering Profiler"); 1852 mRenderProfiler.start(); 1853 } else { 1854 mRenderProfiler.interrupt(); 1855 mRenderProfiler = null; 1856 } 1857 } 1858 } 1859 1860 /** 1861 * Called from draw() when DEBUG_FPS is enabled 1862 */ 1863 private void trackFPS() { 1864 // Tracks frames per second drawn. First value in a series of draws may be bogus 1865 // because it down not account for the intervening idle time 1866 long nowTime = System.currentTimeMillis(); 1867 if (mFpsStartTime < 0) { 1868 mFpsStartTime = mFpsPrevTime = nowTime; 1869 mFpsNumFrames = 0; 1870 } else { 1871 ++mFpsNumFrames; 1872 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1873 long frameTime = nowTime - mFpsPrevTime; 1874 long totalTime = nowTime - mFpsStartTime; 1875 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1876 mFpsPrevTime = nowTime; 1877 if (totalTime > 1000) { 1878 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1879 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1880 mFpsStartTime = nowTime; 1881 mFpsNumFrames = 0; 1882 } 1883 } 1884 } 1885 1886 private void performDraw() { 1887 final long drawStartTime; 1888 if (ViewDebug.DEBUG_LATENCY) { 1889 drawStartTime = System.nanoTime(); 1890 if (mLastDrawFinishedTimeNanos != 0) { 1891 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 1892 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 1893 + "ms since the last draw finished."); 1894 } else { 1895 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 1896 } 1897 } 1898 1899 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1900 mFullRedrawNeeded = false; 1901 draw(fullRedrawNeeded); 1902 1903 if (ViewDebug.DEBUG_LATENCY) { 1904 long now = System.nanoTime(); 1905 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 1906 + ((now - drawStartTime) * 0.000001f) 1907 + "ms."); 1908 mLastDrawFinishedTimeNanos = now; 1909 } 1910 1911 if (mReportNextDraw) { 1912 mReportNextDraw = false; 1913 1914 if (LOCAL_LOGV) { 1915 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1916 } 1917 if (mSurfaceHolder != null && mSurface.isValid()) { 1918 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1919 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1920 if (callbacks != null) { 1921 for (SurfaceHolder.Callback c : callbacks) { 1922 if (c instanceof SurfaceHolder.Callback2) { 1923 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1924 mSurfaceHolder); 1925 } 1926 } 1927 } 1928 } 1929 try { 1930 sWindowSession.finishDrawing(mWindow); 1931 } catch (RemoteException e) { 1932 } 1933 } 1934 } 1935 1936 private void draw(boolean fullRedrawNeeded) { 1937 Surface surface = mSurface; 1938 if (surface == null || !surface.isValid()) { 1939 return; 1940 } 1941 1942 if (DEBUG_FPS) { 1943 trackFPS(); 1944 } 1945 1946 if (!sFirstDrawComplete) { 1947 synchronized (sFirstDrawHandlers) { 1948 sFirstDrawComplete = true; 1949 final int count = sFirstDrawHandlers.size(); 1950 for (int i = 0; i< count; i++) { 1951 mHandler.post(sFirstDrawHandlers.get(i)); 1952 } 1953 } 1954 } 1955 1956 scrollToRectOrFocus(null, false); 1957 1958 if (mAttachInfo.mViewScrollChanged) { 1959 mAttachInfo.mViewScrollChanged = false; 1960 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1961 } 1962 1963 int yoff; 1964 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1965 if (animating) { 1966 yoff = mScroller.getCurrY(); 1967 } else { 1968 yoff = mScrollY; 1969 } 1970 if (mCurScrollY != yoff) { 1971 mCurScrollY = yoff; 1972 fullRedrawNeeded = true; 1973 } 1974 1975 final float appScale = mAttachInfo.mApplicationScale; 1976 final boolean scalingRequired = mAttachInfo.mScalingRequired; 1977 1978 int resizeAlpha = 0; 1979 if (mResizeBuffer != null) { 1980 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1981 if (deltaTime < mResizeBufferDuration) { 1982 float amt = deltaTime/(float) mResizeBufferDuration; 1983 amt = mResizeInterpolator.getInterpolation(amt); 1984 animating = true; 1985 resizeAlpha = 255 - (int)(amt*255); 1986 } else { 1987 disposeResizeBuffer(); 1988 } 1989 } 1990 1991 final Rect dirty = mDirty; 1992 if (mSurfaceHolder != null) { 1993 // The app owns the surface, we won't draw. 1994 dirty.setEmpty(); 1995 if (animating) { 1996 if (mScroller != null) { 1997 mScroller.abortAnimation(); 1998 } 1999 disposeResizeBuffer(); 2000 } 2001 return; 2002 } 2003 2004 if (fullRedrawNeeded) { 2005 mAttachInfo.mIgnoreDirtyState = true; 2006 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2007 } 2008 2009 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2010 Log.v(TAG, "Draw " + mView + "/" 2011 + mWindowAttributes.getTitle() 2012 + ": dirty={" + dirty.left + "," + dirty.top 2013 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2014 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2015 appScale + ", width=" + mWidth + ", height=" + mHeight); 2016 } 2017 2018 if (!dirty.isEmpty() || mIsAnimating) { 2019 if (mAttachInfo.mHardwareRenderer != null 2020 && mAttachInfo.mHardwareRenderer.isEnabled()) { 2021 // Draw with hardware renderer. 2022 mIsAnimating = false; 2023 mHardwareYOffset = yoff; 2024 mResizeAlpha = resizeAlpha; 2025 2026 mCurrentDirty.set(dirty); 2027 mCurrentDirty.union(mPreviousDirty); 2028 mPreviousDirty.set(dirty); 2029 dirty.setEmpty(); 2030 2031 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, 2032 animating ? null : mCurrentDirty)) { 2033 mPreviousDirty.set(0, 0, mWidth, mHeight); 2034 } 2035 } else { 2036 // Draw with software renderer. 2037 Canvas canvas; 2038 try { 2039 int left = dirty.left; 2040 int top = dirty.top; 2041 int right = dirty.right; 2042 int bottom = dirty.bottom; 2043 2044 final long lockCanvasStartTime; 2045 if (ViewDebug.DEBUG_LATENCY) { 2046 lockCanvasStartTime = System.nanoTime(); 2047 } 2048 2049 canvas = mSurface.lockCanvas(dirty); 2050 2051 if (ViewDebug.DEBUG_LATENCY) { 2052 long now = System.nanoTime(); 2053 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2054 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2055 } 2056 2057 if (left != dirty.left || top != dirty.top || right != dirty.right || 2058 bottom != dirty.bottom) { 2059 mAttachInfo.mIgnoreDirtyState = true; 2060 } 2061 2062 // TODO: Do this in native 2063 canvas.setDensity(mDensity); 2064 } catch (Surface.OutOfResourcesException e) { 2065 Log.e(TAG, "OutOfResourcesException locking surface", e); 2066 try { 2067 if (!sWindowSession.outOfMemory(mWindow)) { 2068 Slog.w(TAG, "No processes killed for memory; killing self"); 2069 Process.killProcess(Process.myPid()); 2070 } 2071 } catch (RemoteException ex) { 2072 } 2073 mLayoutRequested = true; // ask wm for a new surface next time. 2074 return; 2075 } catch (IllegalArgumentException e) { 2076 Log.e(TAG, "IllegalArgumentException locking surface", e); 2077 // Don't assume this is due to out of memory, it could be 2078 // something else, and if it is something else then we could 2079 // kill stuff (or ourself) for no reason. 2080 mLayoutRequested = true; // ask wm for a new surface next time. 2081 return; 2082 } 2083 2084 try { 2085 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2086 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2087 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2088 //canvas.drawARGB(255, 255, 0, 0); 2089 } 2090 2091 long startTime = 0L; 2092 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2093 startTime = SystemClock.elapsedRealtime(); 2094 } 2095 2096 // If this bitmap's format includes an alpha channel, we 2097 // need to clear it before drawing so that the child will 2098 // properly re-composite its drawing on a transparent 2099 // background. This automatically respects the clip/dirty region 2100 // or 2101 // If we are applying an offset, we need to clear the area 2102 // where the offset doesn't appear to avoid having garbage 2103 // left in the blank areas. 2104 if (!canvas.isOpaque() || yoff != 0) { 2105 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2106 } 2107 2108 dirty.setEmpty(); 2109 mIsAnimating = false; 2110 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2111 mView.mPrivateFlags |= View.DRAWN; 2112 2113 if (DEBUG_DRAW) { 2114 Context cxt = mView.getContext(); 2115 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2116 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2117 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2118 } 2119 try { 2120 canvas.translate(0, -yoff); 2121 if (mTranslator != null) { 2122 mTranslator.translateCanvas(canvas); 2123 } 2124 canvas.setScreenDensity(scalingRequired 2125 ? DisplayMetrics.DENSITY_DEVICE : 0); 2126 mAttachInfo.mSetIgnoreDirtyState = false; 2127 2128 final long drawStartTime; 2129 if (ViewDebug.DEBUG_LATENCY) { 2130 drawStartTime = System.nanoTime(); 2131 } 2132 2133 mView.draw(canvas); 2134 2135 if (ViewDebug.DEBUG_LATENCY) { 2136 long now = System.nanoTime(); 2137 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2138 + ((now - drawStartTime) * 0.000001f) + "ms"); 2139 } 2140 } finally { 2141 if (!mAttachInfo.mSetIgnoreDirtyState) { 2142 // Only clear the flag if it was not set during the mView.draw() call 2143 mAttachInfo.mIgnoreDirtyState = false; 2144 } 2145 } 2146 2147 if (false && ViewDebug.consistencyCheckEnabled) { 2148 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2149 } 2150 2151 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2152 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2153 } 2154 } finally { 2155 final long unlockCanvasAndPostStartTime; 2156 if (ViewDebug.DEBUG_LATENCY) { 2157 unlockCanvasAndPostStartTime = System.nanoTime(); 2158 } 2159 2160 surface.unlockCanvasAndPost(canvas); 2161 2162 if (ViewDebug.DEBUG_LATENCY) { 2163 long now = System.nanoTime(); 2164 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2165 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2166 } 2167 2168 if (LOCAL_LOGV) { 2169 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2170 } 2171 } 2172 } 2173 } 2174 2175 if (animating) { 2176 mFullRedrawNeeded = true; 2177 scheduleTraversals(); 2178 } 2179 } 2180 2181 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2182 final View.AttachInfo attachInfo = mAttachInfo; 2183 final Rect ci = attachInfo.mContentInsets; 2184 final Rect vi = attachInfo.mVisibleInsets; 2185 int scrollY = 0; 2186 boolean handled = false; 2187 2188 if (vi.left > ci.left || vi.top > ci.top 2189 || vi.right > ci.right || vi.bottom > ci.bottom) { 2190 // We'll assume that we aren't going to change the scroll 2191 // offset, since we want to avoid that unless it is actually 2192 // going to make the focus visible... otherwise we scroll 2193 // all over the place. 2194 scrollY = mScrollY; 2195 // We can be called for two different situations: during a draw, 2196 // to update the scroll position if the focus has changed (in which 2197 // case 'rectangle' is null), or in response to a 2198 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2199 // is non-null and we just want to scroll to whatever that 2200 // rectangle is). 2201 View focus = mRealFocusedView; 2202 2203 // When in touch mode, focus points to the previously focused view, 2204 // which may have been removed from the view hierarchy. The following 2205 // line checks whether the view is still in our hierarchy. 2206 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2207 mRealFocusedView = null; 2208 return false; 2209 } 2210 2211 if (focus != mLastScrolledFocus) { 2212 // If the focus has changed, then ignore any requests to scroll 2213 // to a rectangle; first we want to make sure the entire focus 2214 // view is visible. 2215 rectangle = null; 2216 } 2217 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2218 + " rectangle=" + rectangle + " ci=" + ci 2219 + " vi=" + vi); 2220 if (focus == mLastScrolledFocus && !mScrollMayChange 2221 && rectangle == null) { 2222 // Optimization: if the focus hasn't changed since last 2223 // time, and no layout has happened, then just leave things 2224 // as they are. 2225 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2226 + mScrollY + " vi=" + vi.toShortString()); 2227 } else if (focus != null) { 2228 // We need to determine if the currently focused view is 2229 // within the visible part of the window and, if not, apply 2230 // a pan so it can be seen. 2231 mLastScrolledFocus = focus; 2232 mScrollMayChange = false; 2233 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2234 // Try to find the rectangle from the focus view. 2235 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2236 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2237 + mView.getWidth() + " h=" + mView.getHeight() 2238 + " ci=" + ci.toShortString() 2239 + " vi=" + vi.toShortString()); 2240 if (rectangle == null) { 2241 focus.getFocusedRect(mTempRect); 2242 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2243 + ": focusRect=" + mTempRect.toShortString()); 2244 if (mView instanceof ViewGroup) { 2245 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2246 focus, mTempRect); 2247 } 2248 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2249 "Focus in window: focusRect=" 2250 + mTempRect.toShortString() 2251 + " visRect=" + mVisRect.toShortString()); 2252 } else { 2253 mTempRect.set(rectangle); 2254 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2255 "Request scroll to rect: " 2256 + mTempRect.toShortString() 2257 + " visRect=" + mVisRect.toShortString()); 2258 } 2259 if (mTempRect.intersect(mVisRect)) { 2260 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2261 "Focus window visible rect: " 2262 + mTempRect.toShortString()); 2263 if (mTempRect.height() > 2264 (mView.getHeight()-vi.top-vi.bottom)) { 2265 // If the focus simply is not going to fit, then 2266 // best is probably just to leave things as-is. 2267 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2268 "Too tall; leaving scrollY=" + scrollY); 2269 } else if ((mTempRect.top-scrollY) < vi.top) { 2270 scrollY -= vi.top - (mTempRect.top-scrollY); 2271 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2272 "Top covered; scrollY=" + scrollY); 2273 } else if ((mTempRect.bottom-scrollY) 2274 > (mView.getHeight()-vi.bottom)) { 2275 scrollY += (mTempRect.bottom-scrollY) 2276 - (mView.getHeight()-vi.bottom); 2277 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2278 "Bottom covered; scrollY=" + scrollY); 2279 } 2280 handled = true; 2281 } 2282 } 2283 } 2284 } 2285 2286 if (scrollY != mScrollY) { 2287 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2288 + mScrollY + " , new=" + scrollY); 2289 if (!immediate && mResizeBuffer == null) { 2290 if (mScroller == null) { 2291 mScroller = new Scroller(mView.getContext()); 2292 } 2293 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2294 } else if (mScroller != null) { 2295 mScroller.abortAnimation(); 2296 } 2297 mScrollY = scrollY; 2298 } 2299 2300 return handled; 2301 } 2302 2303 public void requestChildFocus(View child, View focused) { 2304 checkThread(); 2305 2306 if (DEBUG_INPUT_RESIZE) { 2307 Log.v(TAG, "Request child focus: focus now " + focused); 2308 } 2309 2310 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2311 scheduleTraversals(); 2312 2313 mFocusedView = mRealFocusedView = focused; 2314 } 2315 2316 public void clearChildFocus(View child) { 2317 checkThread(); 2318 2319 if (DEBUG_INPUT_RESIZE) { 2320 Log.v(TAG, "Clearing child focus"); 2321 } 2322 2323 mOldFocusedView = mFocusedView; 2324 2325 // Invoke the listener only if there is no view to take focus 2326 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2327 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2328 } 2329 2330 mFocusedView = mRealFocusedView = null; 2331 } 2332 2333 public void focusableViewAvailable(View v) { 2334 checkThread(); 2335 2336 if (mView != null) { 2337 if (!mView.hasFocus()) { 2338 v.requestFocus(); 2339 } else { 2340 // the one case where will transfer focus away from the current one 2341 // is if the current view is a view group that prefers to give focus 2342 // to its children first AND the view is a descendant of it. 2343 mFocusedView = mView.findFocus(); 2344 boolean descendantsHaveDibsOnFocus = 2345 (mFocusedView instanceof ViewGroup) && 2346 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2347 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2348 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2349 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2350 v.requestFocus(); 2351 } 2352 } 2353 } 2354 } 2355 2356 public void recomputeViewAttributes(View child) { 2357 checkThread(); 2358 if (mView == child) { 2359 mAttachInfo.mRecomputeGlobalAttributes = true; 2360 if (!mWillDrawSoon) { 2361 scheduleTraversals(); 2362 } 2363 } 2364 } 2365 2366 void dispatchDetachedFromWindow() { 2367 if (mView != null && mView.mAttachInfo != null) { 2368 if (mAttachInfo.mHardwareRenderer != null && 2369 mAttachInfo.mHardwareRenderer.isEnabled()) { 2370 mAttachInfo.mHardwareRenderer.validate(); 2371 } 2372 mView.dispatchDetachedFromWindow(); 2373 } 2374 2375 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2376 mAccessibilityManager.removeAccessibilityStateChangeListener( 2377 mAccessibilityInteractionConnectionManager); 2378 removeSendWindowContentChangedCallback(); 2379 2380 mView = null; 2381 mAttachInfo.mRootView = null; 2382 mAttachInfo.mSurface = null; 2383 2384 destroyHardwareRenderer(); 2385 2386 mSurface.release(); 2387 2388 if (mInputQueueCallback != null && mInputQueue != null) { 2389 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2390 mInputQueueCallback = null; 2391 mInputQueue = null; 2392 } else if (mInputEventReceiver != null) { 2393 mInputEventReceiver.dispose(); 2394 mInputEventReceiver = null; 2395 } 2396 try { 2397 sWindowSession.remove(mWindow); 2398 } catch (RemoteException e) { 2399 } 2400 2401 // Dispose the input channel after removing the window so the Window Manager 2402 // doesn't interpret the input channel being closed as an abnormal termination. 2403 if (mInputChannel != null) { 2404 mInputChannel.dispose(); 2405 mInputChannel = null; 2406 } 2407 2408 unscheduleFrame(); 2409 } 2410 2411 void updateConfiguration(Configuration config, boolean force) { 2412 if (DEBUG_CONFIGURATION) Log.v(TAG, 2413 "Applying new config to window " 2414 + mWindowAttributes.getTitle() 2415 + ": " + config); 2416 2417 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2418 if (ci != null) { 2419 config = new Configuration(config); 2420 ci.applyToConfiguration(config); 2421 } 2422 2423 synchronized (sConfigCallbacks) { 2424 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2425 sConfigCallbacks.get(i).onConfigurationChanged(config); 2426 } 2427 } 2428 if (mView != null) { 2429 // At this point the resources have been updated to 2430 // have the most recent config, whatever that is. Use 2431 // the on in them which may be newer. 2432 config = mView.getResources().getConfiguration(); 2433 if (force || mLastConfiguration.diff(config) != 0) { 2434 mLastConfiguration.setTo(config); 2435 mView.dispatchConfigurationChanged(config); 2436 } 2437 } 2438 } 2439 2440 /** 2441 * Return true if child is an ancestor of parent, (or equal to the parent). 2442 */ 2443 private static boolean isViewDescendantOf(View child, View parent) { 2444 if (child == parent) { 2445 return true; 2446 } 2447 2448 final ViewParent theParent = child.getParent(); 2449 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2450 } 2451 2452 private static void forceLayout(View view) { 2453 view.forceLayout(); 2454 if (view instanceof ViewGroup) { 2455 ViewGroup group = (ViewGroup) view; 2456 final int count = group.getChildCount(); 2457 for (int i = 0; i < count; i++) { 2458 forceLayout(group.getChildAt(i)); 2459 } 2460 } 2461 } 2462 2463 private final static int MSG_INVALIDATE = 1; 2464 private final static int MSG_INVALIDATE_RECT = 2; 2465 private final static int MSG_DIE = 3; 2466 private final static int MSG_RESIZED = 4; 2467 private final static int MSG_RESIZED_REPORT = 5; 2468 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2469 private final static int MSG_DISPATCH_KEY = 7; 2470 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2471 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2472 private final static int MSG_IME_FINISHED_EVENT = 10; 2473 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2474 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2475 private final static int MSG_CHECK_FOCUS = 13; 2476 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2477 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2478 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2479 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2480 private final static int MSG_UPDATE_CONFIGURATION = 18; 2481 private final static int MSG_PERFORM_ACCESSIBILITY_ACTION = 19; 2482 private final static int MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 20; 2483 private final static int MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 21; 2484 private final static int MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 22; 2485 private final static int MSG_PROCESS_INPUT_EVENTS = 23; 2486 2487 final class ViewRootHandler extends Handler { 2488 @Override 2489 public String getMessageName(Message message) { 2490 switch (message.what) { 2491 case MSG_INVALIDATE: 2492 return "MSG_INVALIDATE"; 2493 case MSG_INVALIDATE_RECT: 2494 return "MSG_INVALIDATE_RECT"; 2495 case MSG_DIE: 2496 return "MSG_DIE"; 2497 case MSG_RESIZED: 2498 return "MSG_RESIZED"; 2499 case MSG_RESIZED_REPORT: 2500 return "MSG_RESIZED_REPORT"; 2501 case MSG_WINDOW_FOCUS_CHANGED: 2502 return "MSG_WINDOW_FOCUS_CHANGED"; 2503 case MSG_DISPATCH_KEY: 2504 return "MSG_DISPATCH_KEY"; 2505 case MSG_DISPATCH_APP_VISIBILITY: 2506 return "MSG_DISPATCH_APP_VISIBILITY"; 2507 case MSG_DISPATCH_GET_NEW_SURFACE: 2508 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2509 case MSG_IME_FINISHED_EVENT: 2510 return "MSG_IME_FINISHED_EVENT"; 2511 case MSG_DISPATCH_KEY_FROM_IME: 2512 return "MSG_DISPATCH_KEY_FROM_IME"; 2513 case MSG_FINISH_INPUT_CONNECTION: 2514 return "MSG_FINISH_INPUT_CONNECTION"; 2515 case MSG_CHECK_FOCUS: 2516 return "MSG_CHECK_FOCUS"; 2517 case MSG_CLOSE_SYSTEM_DIALOGS: 2518 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2519 case MSG_DISPATCH_DRAG_EVENT: 2520 return "MSG_DISPATCH_DRAG_EVENT"; 2521 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2522 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2523 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2524 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2525 case MSG_UPDATE_CONFIGURATION: 2526 return "MSG_UPDATE_CONFIGURATION"; 2527 case MSG_PERFORM_ACCESSIBILITY_ACTION: 2528 return "MSG_PERFORM_ACCESSIBILITY_ACTION"; 2529 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2530 return "MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2531 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2532 return "MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2533 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2534 return "MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2535 case MSG_PROCESS_INPUT_EVENTS: 2536 return "MSG_PROCESS_INPUT_EVENTS"; 2537 } 2538 return super.getMessageName(message); 2539 } 2540 2541 @Override 2542 public void handleMessage(Message msg) { 2543 switch (msg.what) { 2544 case MSG_INVALIDATE: 2545 ((View) msg.obj).invalidate(); 2546 break; 2547 case MSG_INVALIDATE_RECT: 2548 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2549 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2550 info.release(); 2551 break; 2552 case MSG_IME_FINISHED_EVENT: 2553 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2554 break; 2555 case MSG_PROCESS_INPUT_EVENTS: 2556 mProcessInputEventsScheduled = false; 2557 doProcessInputEvents(); 2558 break; 2559 case MSG_DISPATCH_APP_VISIBILITY: 2560 handleAppVisibility(msg.arg1 != 0); 2561 break; 2562 case MSG_DISPATCH_GET_NEW_SURFACE: 2563 handleGetNewSurface(); 2564 break; 2565 case MSG_RESIZED: 2566 ResizedInfo ri = (ResizedInfo)msg.obj; 2567 2568 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2569 && mPendingContentInsets.equals(ri.coveredInsets) 2570 && mPendingVisibleInsets.equals(ri.visibleInsets) 2571 && ((ResizedInfo)msg.obj).newConfig == null) { 2572 break; 2573 } 2574 // fall through... 2575 case MSG_RESIZED_REPORT: 2576 if (mAdded) { 2577 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2578 if (config != null) { 2579 updateConfiguration(config, false); 2580 } 2581 mWinFrame.left = 0; 2582 mWinFrame.right = msg.arg1; 2583 mWinFrame.top = 0; 2584 mWinFrame.bottom = msg.arg2; 2585 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2586 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2587 if (msg.what == MSG_RESIZED_REPORT) { 2588 mReportNextDraw = true; 2589 } 2590 2591 if (mView != null) { 2592 forceLayout(mView); 2593 } 2594 requestLayout(); 2595 } 2596 break; 2597 case MSG_WINDOW_FOCUS_CHANGED: { 2598 if (mAdded) { 2599 boolean hasWindowFocus = msg.arg1 != 0; 2600 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2601 2602 profileRendering(hasWindowFocus); 2603 2604 if (hasWindowFocus) { 2605 boolean inTouchMode = msg.arg2 != 0; 2606 ensureTouchModeLocally(inTouchMode); 2607 2608 if (mAttachInfo.mHardwareRenderer != null && 2609 mSurface != null && mSurface.isValid()) { 2610 mFullRedrawNeeded = true; 2611 try { 2612 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2613 mHolder); 2614 } catch (Surface.OutOfResourcesException e) { 2615 Log.e(TAG, "OutOfResourcesException locking surface", e); 2616 try { 2617 if (!sWindowSession.outOfMemory(mWindow)) { 2618 Slog.w(TAG, "No processes killed for memory; killing self"); 2619 Process.killProcess(Process.myPid()); 2620 } 2621 } catch (RemoteException ex) { 2622 } 2623 // Retry in a bit. 2624 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2625 return; 2626 } 2627 } 2628 } 2629 2630 mLastWasImTarget = WindowManager.LayoutParams 2631 .mayUseInputMethod(mWindowAttributes.flags); 2632 2633 InputMethodManager imm = InputMethodManager.peekInstance(); 2634 if (mView != null) { 2635 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2636 imm.startGettingWindowFocus(mView); 2637 } 2638 mAttachInfo.mKeyDispatchState.reset(); 2639 mView.dispatchWindowFocusChanged(hasWindowFocus); 2640 } 2641 2642 // Note: must be done after the focus change callbacks, 2643 // so all of the view state is set up correctly. 2644 if (hasWindowFocus) { 2645 if (imm != null && mLastWasImTarget) { 2646 imm.onWindowFocus(mView, mView.findFocus(), 2647 mWindowAttributes.softInputMode, 2648 !mHasHadWindowFocus, mWindowAttributes.flags); 2649 } 2650 // Clear the forward bit. We can just do this directly, since 2651 // the window manager doesn't care about it. 2652 mWindowAttributes.softInputMode &= 2653 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2654 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2655 .softInputMode &= 2656 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2657 mHasHadWindowFocus = true; 2658 } 2659 2660 if (hasWindowFocus && mView != null && mAccessibilityManager.isEnabled()) { 2661 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2662 } 2663 } 2664 } break; 2665 case MSG_DIE: 2666 doDie(); 2667 break; 2668 case MSG_DISPATCH_KEY: { 2669 KeyEvent event = (KeyEvent)msg.obj; 2670 enqueueInputEvent(event, null, 0, true); 2671 } break; 2672 case MSG_DISPATCH_KEY_FROM_IME: { 2673 if (LOCAL_LOGV) Log.v( 2674 TAG, "Dispatching key " 2675 + msg.obj + " from IME to " + mView); 2676 KeyEvent event = (KeyEvent)msg.obj; 2677 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2678 // The IME is trying to say this event is from the 2679 // system! Bad bad bad! 2680 //noinspection UnusedAssignment 2681 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2682 } 2683 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2684 } break; 2685 case MSG_FINISH_INPUT_CONNECTION: { 2686 InputMethodManager imm = InputMethodManager.peekInstance(); 2687 if (imm != null) { 2688 imm.reportFinishInputConnection((InputConnection)msg.obj); 2689 } 2690 } break; 2691 case MSG_CHECK_FOCUS: { 2692 InputMethodManager imm = InputMethodManager.peekInstance(); 2693 if (imm != null) { 2694 imm.checkFocus(); 2695 } 2696 } break; 2697 case MSG_CLOSE_SYSTEM_DIALOGS: { 2698 if (mView != null) { 2699 mView.onCloseSystemDialogs((String)msg.obj); 2700 } 2701 } break; 2702 case MSG_DISPATCH_DRAG_EVENT: 2703 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2704 DragEvent event = (DragEvent)msg.obj; 2705 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2706 handleDragEvent(event); 2707 } break; 2708 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2709 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2710 } break; 2711 case MSG_UPDATE_CONFIGURATION: { 2712 Configuration config = (Configuration)msg.obj; 2713 if (config.isOtherSeqNewer(mLastConfiguration)) { 2714 config = mLastConfiguration; 2715 } 2716 updateConfiguration(config, false); 2717 } break; 2718 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2719 if (mView != null) { 2720 getAccessibilityInteractionController() 2721 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2722 } 2723 } break; 2724 case MSG_PERFORM_ACCESSIBILITY_ACTION: { 2725 if (mView != null) { 2726 getAccessibilityInteractionController() 2727 .perfromAccessibilityActionUiThread(msg); 2728 } 2729 } break; 2730 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2731 if (mView != null) { 2732 getAccessibilityInteractionController() 2733 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2734 } 2735 } break; 2736 case MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2737 if (mView != null) { 2738 getAccessibilityInteractionController() 2739 .findAccessibilityNodeInfosByTextUiThread(msg); 2740 } 2741 } break; 2742 } 2743 } 2744 } 2745 final ViewRootHandler mHandler = new ViewRootHandler(); 2746 2747 /** 2748 * Something in the current window tells us we need to change the touch mode. For 2749 * example, we are not in touch mode, and the user touches the screen. 2750 * 2751 * If the touch mode has changed, tell the window manager, and handle it locally. 2752 * 2753 * @param inTouchMode Whether we want to be in touch mode. 2754 * @return True if the touch mode changed and focus changed was changed as a result 2755 */ 2756 boolean ensureTouchMode(boolean inTouchMode) { 2757 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2758 + "touch mode is " + mAttachInfo.mInTouchMode); 2759 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2760 2761 // tell the window manager 2762 try { 2763 sWindowSession.setInTouchMode(inTouchMode); 2764 } catch (RemoteException e) { 2765 throw new RuntimeException(e); 2766 } 2767 2768 // handle the change 2769 return ensureTouchModeLocally(inTouchMode); 2770 } 2771 2772 /** 2773 * Ensure that the touch mode for this window is set, and if it is changing, 2774 * take the appropriate action. 2775 * @param inTouchMode Whether we want to be in touch mode. 2776 * @return True if the touch mode changed and focus changed was changed as a result 2777 */ 2778 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2779 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2780 + "touch mode is " + mAttachInfo.mInTouchMode); 2781 2782 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2783 2784 mAttachInfo.mInTouchMode = inTouchMode; 2785 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2786 2787 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2788 } 2789 2790 private boolean enterTouchMode() { 2791 if (mView != null) { 2792 if (mView.hasFocus()) { 2793 // note: not relying on mFocusedView here because this could 2794 // be when the window is first being added, and mFocused isn't 2795 // set yet. 2796 final View focused = mView.findFocus(); 2797 if (focused != null && !focused.isFocusableInTouchMode()) { 2798 2799 final ViewGroup ancestorToTakeFocus = 2800 findAncestorToTakeFocusInTouchMode(focused); 2801 if (ancestorToTakeFocus != null) { 2802 // there is an ancestor that wants focus after its descendants that 2803 // is focusable in touch mode.. give it focus 2804 return ancestorToTakeFocus.requestFocus(); 2805 } else { 2806 // nothing appropriate to have focus in touch mode, clear it out 2807 mView.unFocus(); 2808 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2809 mFocusedView = null; 2810 mOldFocusedView = null; 2811 return true; 2812 } 2813 } 2814 } 2815 } 2816 return false; 2817 } 2818 2819 2820 /** 2821 * Find an ancestor of focused that wants focus after its descendants and is 2822 * focusable in touch mode. 2823 * @param focused The currently focused view. 2824 * @return An appropriate view, or null if no such view exists. 2825 */ 2826 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2827 ViewParent parent = focused.getParent(); 2828 while (parent instanceof ViewGroup) { 2829 final ViewGroup vgParent = (ViewGroup) parent; 2830 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2831 && vgParent.isFocusableInTouchMode()) { 2832 return vgParent; 2833 } 2834 if (vgParent.isRootNamespace()) { 2835 return null; 2836 } else { 2837 parent = vgParent.getParent(); 2838 } 2839 } 2840 return null; 2841 } 2842 2843 private boolean leaveTouchMode() { 2844 if (mView != null) { 2845 if (mView.hasFocus()) { 2846 // i learned the hard way to not trust mFocusedView :) 2847 mFocusedView = mView.findFocus(); 2848 if (!(mFocusedView instanceof ViewGroup)) { 2849 // some view has focus, let it keep it 2850 return false; 2851 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2852 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2853 // some view group has focus, and doesn't prefer its children 2854 // over itself for focus, so let them keep it. 2855 return false; 2856 } 2857 } 2858 2859 // find the best view to give focus to in this brave new non-touch-mode 2860 // world 2861 final View focused = focusSearch(null, View.FOCUS_DOWN); 2862 if (focused != null) { 2863 return focused.requestFocus(View.FOCUS_DOWN); 2864 } 2865 } 2866 return false; 2867 } 2868 2869 private void deliverInputEvent(QueuedInputEvent q) { 2870 if (ViewDebug.DEBUG_LATENCY) { 2871 q.mDeliverTimeNanos = System.nanoTime(); 2872 } 2873 2874 if (q.mEvent instanceof KeyEvent) { 2875 deliverKeyEvent(q); 2876 } else { 2877 final int source = q.mEvent.getSource(); 2878 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2879 deliverPointerEvent(q); 2880 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2881 deliverTrackballEvent(q); 2882 } else { 2883 deliverGenericMotionEvent(q); 2884 } 2885 } 2886 } 2887 2888 private void deliverPointerEvent(QueuedInputEvent q) { 2889 final MotionEvent event = (MotionEvent)q.mEvent; 2890 final boolean isTouchEvent = event.isTouchEvent(); 2891 if (mInputEventConsistencyVerifier != null) { 2892 if (isTouchEvent) { 2893 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2894 } else { 2895 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2896 } 2897 } 2898 2899 // If there is no view, then the event will not be handled. 2900 if (mView == null || !mAdded) { 2901 finishInputEvent(q, false); 2902 return; 2903 } 2904 2905 // Translate the pointer event for compatibility, if needed. 2906 if (mTranslator != null) { 2907 mTranslator.translateEventInScreenToAppWindow(event); 2908 } 2909 2910 // Enter touch mode on down or scroll. 2911 final int action = event.getAction(); 2912 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2913 ensureTouchMode(true); 2914 } 2915 2916 // Offset the scroll position. 2917 if (mCurScrollY != 0) { 2918 event.offsetLocation(0, mCurScrollY); 2919 } 2920 if (MEASURE_LATENCY) { 2921 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2922 } 2923 2924 // Remember the touch position for possible drag-initiation. 2925 if (isTouchEvent) { 2926 mLastTouchPoint.x = event.getRawX(); 2927 mLastTouchPoint.y = event.getRawY(); 2928 } 2929 2930 // Dispatch touch to view hierarchy. 2931 boolean handled = mView.dispatchPointerEvent(event); 2932 if (MEASURE_LATENCY) { 2933 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2934 } 2935 if (handled) { 2936 finishInputEvent(q, true); 2937 return; 2938 } 2939 2940 // Pointer event was unhandled. 2941 finishInputEvent(q, false); 2942 } 2943 2944 private void deliverTrackballEvent(QueuedInputEvent q) { 2945 final MotionEvent event = (MotionEvent)q.mEvent; 2946 if (mInputEventConsistencyVerifier != null) { 2947 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2948 } 2949 2950 // If there is no view, then the event will not be handled. 2951 if (mView == null || !mAdded) { 2952 finishInputEvent(q, false); 2953 return; 2954 } 2955 2956 // Deliver the trackball event to the view. 2957 if (mView.dispatchTrackballEvent(event)) { 2958 // If we reach this, we delivered a trackball event to mView and 2959 // mView consumed it. Because we will not translate the trackball 2960 // event into a key event, touch mode will not exit, so we exit 2961 // touch mode here. 2962 ensureTouchMode(false); 2963 2964 finishInputEvent(q, true); 2965 mLastTrackballTime = Integer.MIN_VALUE; 2966 return; 2967 } 2968 2969 // Translate the trackball event into DPAD keys and try to deliver those. 2970 final TrackballAxis x = mTrackballAxisX; 2971 final TrackballAxis y = mTrackballAxisY; 2972 2973 long curTime = SystemClock.uptimeMillis(); 2974 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2975 // It has been too long since the last movement, 2976 // so restart at the beginning. 2977 x.reset(0); 2978 y.reset(0); 2979 mLastTrackballTime = curTime; 2980 } 2981 2982 final int action = event.getAction(); 2983 final int metaState = event.getMetaState(); 2984 switch (action) { 2985 case MotionEvent.ACTION_DOWN: 2986 x.reset(2); 2987 y.reset(2); 2988 enqueueInputEvent(new KeyEvent(curTime, curTime, 2989 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2990 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2991 InputDevice.SOURCE_KEYBOARD)); 2992 break; 2993 case MotionEvent.ACTION_UP: 2994 x.reset(2); 2995 y.reset(2); 2996 enqueueInputEvent(new KeyEvent(curTime, curTime, 2997 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2998 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2999 InputDevice.SOURCE_KEYBOARD)); 3000 break; 3001 } 3002 3003 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3004 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3005 + " move=" + event.getX() 3006 + " / Y=" + y.position + " step=" 3007 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3008 + " move=" + event.getY()); 3009 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3010 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3011 3012 // Generate DPAD events based on the trackball movement. 3013 // We pick the axis that has moved the most as the direction of 3014 // the DPAD. When we generate DPAD events for one axis, then the 3015 // other axis is reset -- we don't want to perform DPAD jumps due 3016 // to slight movements in the trackball when making major movements 3017 // along the other axis. 3018 int keycode = 0; 3019 int movement = 0; 3020 float accel = 1; 3021 if (xOff > yOff) { 3022 movement = x.generate((2/event.getXPrecision())); 3023 if (movement != 0) { 3024 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3025 : KeyEvent.KEYCODE_DPAD_LEFT; 3026 accel = x.acceleration; 3027 y.reset(2); 3028 } 3029 } else if (yOff > 0) { 3030 movement = y.generate((2/event.getYPrecision())); 3031 if (movement != 0) { 3032 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3033 : KeyEvent.KEYCODE_DPAD_UP; 3034 accel = y.acceleration; 3035 x.reset(2); 3036 } 3037 } 3038 3039 if (keycode != 0) { 3040 if (movement < 0) movement = -movement; 3041 int accelMovement = (int)(movement * accel); 3042 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3043 + " accelMovement=" + accelMovement 3044 + " accel=" + accel); 3045 if (accelMovement > movement) { 3046 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3047 + keycode); 3048 movement--; 3049 int repeatCount = accelMovement - movement; 3050 enqueueInputEvent(new KeyEvent(curTime, curTime, 3051 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3052 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3053 InputDevice.SOURCE_KEYBOARD)); 3054 } 3055 while (movement > 0) { 3056 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3057 + keycode); 3058 movement--; 3059 curTime = SystemClock.uptimeMillis(); 3060 enqueueInputEvent(new KeyEvent(curTime, curTime, 3061 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3062 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3063 InputDevice.SOURCE_KEYBOARD)); 3064 enqueueInputEvent(new KeyEvent(curTime, curTime, 3065 KeyEvent.ACTION_UP, keycode, 0, metaState, 3066 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3067 InputDevice.SOURCE_KEYBOARD)); 3068 } 3069 mLastTrackballTime = curTime; 3070 } 3071 3072 // Unfortunately we can't tell whether the application consumed the keys, so 3073 // we always consider the trackball event handled. 3074 finishInputEvent(q, true); 3075 } 3076 3077 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3078 final MotionEvent event = (MotionEvent)q.mEvent; 3079 if (mInputEventConsistencyVerifier != null) { 3080 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3081 } 3082 3083 final int source = event.getSource(); 3084 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3085 3086 // If there is no view, then the event will not be handled. 3087 if (mView == null || !mAdded) { 3088 if (isJoystick) { 3089 updateJoystickDirection(event, false); 3090 } 3091 finishInputEvent(q, false); 3092 return; 3093 } 3094 3095 // Deliver the event to the view. 3096 if (mView.dispatchGenericMotionEvent(event)) { 3097 if (isJoystick) { 3098 updateJoystickDirection(event, false); 3099 } 3100 finishInputEvent(q, true); 3101 return; 3102 } 3103 3104 if (isJoystick) { 3105 // Translate the joystick event into DPAD keys and try to deliver those. 3106 updateJoystickDirection(event, true); 3107 finishInputEvent(q, true); 3108 } else { 3109 finishInputEvent(q, false); 3110 } 3111 } 3112 3113 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3114 final long time = event.getEventTime(); 3115 final int metaState = event.getMetaState(); 3116 final int deviceId = event.getDeviceId(); 3117 final int source = event.getSource(); 3118 3119 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3120 if (xDirection == 0) { 3121 xDirection = joystickAxisValueToDirection(event.getX()); 3122 } 3123 3124 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3125 if (yDirection == 0) { 3126 yDirection = joystickAxisValueToDirection(event.getY()); 3127 } 3128 3129 if (xDirection != mLastJoystickXDirection) { 3130 if (mLastJoystickXKeyCode != 0) { 3131 enqueueInputEvent(new KeyEvent(time, time, 3132 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3133 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3134 mLastJoystickXKeyCode = 0; 3135 } 3136 3137 mLastJoystickXDirection = xDirection; 3138 3139 if (xDirection != 0 && synthesizeNewKeys) { 3140 mLastJoystickXKeyCode = xDirection > 0 3141 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3142 enqueueInputEvent(new KeyEvent(time, time, 3143 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3144 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3145 } 3146 } 3147 3148 if (yDirection != mLastJoystickYDirection) { 3149 if (mLastJoystickYKeyCode != 0) { 3150 enqueueInputEvent(new KeyEvent(time, time, 3151 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3152 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3153 mLastJoystickYKeyCode = 0; 3154 } 3155 3156 mLastJoystickYDirection = yDirection; 3157 3158 if (yDirection != 0 && synthesizeNewKeys) { 3159 mLastJoystickYKeyCode = yDirection > 0 3160 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3161 enqueueInputEvent(new KeyEvent(time, time, 3162 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3163 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3164 } 3165 } 3166 } 3167 3168 private static int joystickAxisValueToDirection(float value) { 3169 if (value >= 0.5f) { 3170 return 1; 3171 } else if (value <= -0.5f) { 3172 return -1; 3173 } else { 3174 return 0; 3175 } 3176 } 3177 3178 /** 3179 * Returns true if the key is used for keyboard navigation. 3180 * @param keyEvent The key event. 3181 * @return True if the key is used for keyboard navigation. 3182 */ 3183 private static boolean isNavigationKey(KeyEvent keyEvent) { 3184 switch (keyEvent.getKeyCode()) { 3185 case KeyEvent.KEYCODE_DPAD_LEFT: 3186 case KeyEvent.KEYCODE_DPAD_RIGHT: 3187 case KeyEvent.KEYCODE_DPAD_UP: 3188 case KeyEvent.KEYCODE_DPAD_DOWN: 3189 case KeyEvent.KEYCODE_DPAD_CENTER: 3190 case KeyEvent.KEYCODE_PAGE_UP: 3191 case KeyEvent.KEYCODE_PAGE_DOWN: 3192 case KeyEvent.KEYCODE_MOVE_HOME: 3193 case KeyEvent.KEYCODE_MOVE_END: 3194 case KeyEvent.KEYCODE_TAB: 3195 case KeyEvent.KEYCODE_SPACE: 3196 case KeyEvent.KEYCODE_ENTER: 3197 return true; 3198 } 3199 return false; 3200 } 3201 3202 /** 3203 * Returns true if the key is used for typing. 3204 * @param keyEvent The key event. 3205 * @return True if the key is used for typing. 3206 */ 3207 private static boolean isTypingKey(KeyEvent keyEvent) { 3208 return keyEvent.getUnicodeChar() > 0; 3209 } 3210 3211 /** 3212 * See if the key event means we should leave touch mode (and leave touch mode if so). 3213 * @param event The key event. 3214 * @return Whether this key event should be consumed (meaning the act of 3215 * leaving touch mode alone is considered the event). 3216 */ 3217 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3218 // Only relevant in touch mode. 3219 if (!mAttachInfo.mInTouchMode) { 3220 return false; 3221 } 3222 3223 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3224 final int action = event.getAction(); 3225 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3226 return false; 3227 } 3228 3229 // Don't leave touch mode if the IME told us not to. 3230 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3231 return false; 3232 } 3233 3234 // If the key can be used for keyboard navigation then leave touch mode 3235 // and select a focused view if needed (in ensureTouchMode). 3236 // When a new focused view is selected, we consume the navigation key because 3237 // navigation doesn't make much sense unless a view already has focus so 3238 // the key's purpose is to set focus. 3239 if (isNavigationKey(event)) { 3240 return ensureTouchMode(false); 3241 } 3242 3243 // If the key can be used for typing then leave touch mode 3244 // and select a focused view if needed (in ensureTouchMode). 3245 // Always allow the view to process the typing key. 3246 if (isTypingKey(event)) { 3247 ensureTouchMode(false); 3248 return false; 3249 } 3250 3251 return false; 3252 } 3253 3254 private void deliverKeyEvent(QueuedInputEvent q) { 3255 final KeyEvent event = (KeyEvent)q.mEvent; 3256 if (mInputEventConsistencyVerifier != null) { 3257 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3258 } 3259 3260 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3261 // If there is no view, then the event will not be handled. 3262 if (mView == null || !mAdded) { 3263 finishInputEvent(q, false); 3264 return; 3265 } 3266 3267 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3268 3269 // Perform predispatching before the IME. 3270 if (mView.dispatchKeyEventPreIme(event)) { 3271 finishInputEvent(q, true); 3272 return; 3273 } 3274 3275 // Dispatch to the IME before propagating down the view hierarchy. 3276 // The IME will eventually call back into handleImeFinishedEvent. 3277 if (mLastWasImTarget) { 3278 InputMethodManager imm = InputMethodManager.peekInstance(); 3279 if (imm != null) { 3280 final int seq = event.getSequenceNumber(); 3281 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3282 + seq + " event=" + event); 3283 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3284 return; 3285 } 3286 } 3287 } 3288 3289 // Not dispatching to IME, continue with post IME actions. 3290 deliverKeyEventPostIme(q); 3291 } 3292 3293 void handleImeFinishedEvent(int seq, boolean handled) { 3294 final QueuedInputEvent q = mCurrentInputEvent; 3295 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3296 final KeyEvent event = (KeyEvent)q.mEvent; 3297 if (DEBUG_IMF) { 3298 Log.v(TAG, "IME finished event: seq=" + seq 3299 + " handled=" + handled + " event=" + event); 3300 } 3301 if (handled) { 3302 finishInputEvent(q, true); 3303 } else { 3304 deliverKeyEventPostIme(q); 3305 } 3306 } else { 3307 if (DEBUG_IMF) { 3308 Log.v(TAG, "IME finished event: seq=" + seq 3309 + " handled=" + handled + ", event not found!"); 3310 } 3311 } 3312 } 3313 3314 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3315 final KeyEvent event = (KeyEvent)q.mEvent; 3316 if (ViewDebug.DEBUG_LATENCY) { 3317 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3318 } 3319 3320 // If the view went away, then the event will not be handled. 3321 if (mView == null || !mAdded) { 3322 finishInputEvent(q, false); 3323 return; 3324 } 3325 3326 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3327 if (checkForLeavingTouchModeAndConsume(event)) { 3328 finishInputEvent(q, true); 3329 return; 3330 } 3331 3332 // Make sure the fallback event policy sees all keys that will be delivered to the 3333 // view hierarchy. 3334 mFallbackEventHandler.preDispatchKeyEvent(event); 3335 3336 // Deliver the key to the view hierarchy. 3337 if (mView.dispatchKeyEvent(event)) { 3338 finishInputEvent(q, true); 3339 return; 3340 } 3341 3342 // If the Control modifier is held, try to interpret the key as a shortcut. 3343 if (event.getAction() == KeyEvent.ACTION_DOWN 3344 && event.isCtrlPressed() 3345 && event.getRepeatCount() == 0 3346 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3347 if (mView.dispatchKeyShortcutEvent(event)) { 3348 finishInputEvent(q, true); 3349 return; 3350 } 3351 } 3352 3353 // Apply the fallback event policy. 3354 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3355 finishInputEvent(q, true); 3356 return; 3357 } 3358 3359 // Handle automatic focus changes. 3360 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3361 int direction = 0; 3362 switch (event.getKeyCode()) { 3363 case KeyEvent.KEYCODE_DPAD_LEFT: 3364 if (event.hasNoModifiers()) { 3365 direction = View.FOCUS_LEFT; 3366 } 3367 break; 3368 case KeyEvent.KEYCODE_DPAD_RIGHT: 3369 if (event.hasNoModifiers()) { 3370 direction = View.FOCUS_RIGHT; 3371 } 3372 break; 3373 case KeyEvent.KEYCODE_DPAD_UP: 3374 if (event.hasNoModifiers()) { 3375 direction = View.FOCUS_UP; 3376 } 3377 break; 3378 case KeyEvent.KEYCODE_DPAD_DOWN: 3379 if (event.hasNoModifiers()) { 3380 direction = View.FOCUS_DOWN; 3381 } 3382 break; 3383 case KeyEvent.KEYCODE_TAB: 3384 if (event.hasNoModifiers()) { 3385 direction = View.FOCUS_FORWARD; 3386 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3387 direction = View.FOCUS_BACKWARD; 3388 } 3389 break; 3390 } 3391 3392 if (direction != 0) { 3393 View focused = mView != null ? mView.findFocus() : null; 3394 if (focused != null) { 3395 View v = focused.focusSearch(direction); 3396 if (v != null && v != focused) { 3397 // do the math the get the interesting rect 3398 // of previous focused into the coord system of 3399 // newly focused view 3400 focused.getFocusedRect(mTempRect); 3401 if (mView instanceof ViewGroup) { 3402 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3403 focused, mTempRect); 3404 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3405 v, mTempRect); 3406 } 3407 if (v.requestFocus(direction, mTempRect)) { 3408 playSoundEffect( 3409 SoundEffectConstants.getContantForFocusDirection(direction)); 3410 finishInputEvent(q, true); 3411 return; 3412 } 3413 } 3414 3415 // Give the focused view a last chance to handle the dpad key. 3416 if (mView.dispatchUnhandledMove(focused, direction)) { 3417 finishInputEvent(q, true); 3418 return; 3419 } 3420 } 3421 } 3422 } 3423 3424 // Key was unhandled. 3425 finishInputEvent(q, false); 3426 } 3427 3428 /* drag/drop */ 3429 void setLocalDragState(Object obj) { 3430 mLocalDragState = obj; 3431 } 3432 3433 private void handleDragEvent(DragEvent event) { 3434 // From the root, only drag start/end/location are dispatched. entered/exited 3435 // are determined and dispatched by the viewgroup hierarchy, who then report 3436 // that back here for ultimate reporting back to the framework. 3437 if (mView != null && mAdded) { 3438 final int what = event.mAction; 3439 3440 if (what == DragEvent.ACTION_DRAG_EXITED) { 3441 // A direct EXITED event means that the window manager knows we've just crossed 3442 // a window boundary, so the current drag target within this one must have 3443 // just been exited. Send it the usual notifications and then we're done 3444 // for now. 3445 mView.dispatchDragEvent(event); 3446 } else { 3447 // Cache the drag description when the operation starts, then fill it in 3448 // on subsequent calls as a convenience 3449 if (what == DragEvent.ACTION_DRAG_STARTED) { 3450 mCurrentDragView = null; // Start the current-recipient tracking 3451 mDragDescription = event.mClipDescription; 3452 } else { 3453 event.mClipDescription = mDragDescription; 3454 } 3455 3456 // For events with a [screen] location, translate into window coordinates 3457 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3458 mDragPoint.set(event.mX, event.mY); 3459 if (mTranslator != null) { 3460 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3461 } 3462 3463 if (mCurScrollY != 0) { 3464 mDragPoint.offset(0, mCurScrollY); 3465 } 3466 3467 event.mX = mDragPoint.x; 3468 event.mY = mDragPoint.y; 3469 } 3470 3471 // Remember who the current drag target is pre-dispatch 3472 final View prevDragView = mCurrentDragView; 3473 3474 // Now dispatch the drag/drop event 3475 boolean result = mView.dispatchDragEvent(event); 3476 3477 // If we changed apparent drag target, tell the OS about it 3478 if (prevDragView != mCurrentDragView) { 3479 try { 3480 if (prevDragView != null) { 3481 sWindowSession.dragRecipientExited(mWindow); 3482 } 3483 if (mCurrentDragView != null) { 3484 sWindowSession.dragRecipientEntered(mWindow); 3485 } 3486 } catch (RemoteException e) { 3487 Slog.e(TAG, "Unable to note drag target change"); 3488 } 3489 } 3490 3491 // Report the drop result when we're done 3492 if (what == DragEvent.ACTION_DROP) { 3493 mDragDescription = null; 3494 try { 3495 Log.i(TAG, "Reporting drop result: " + result); 3496 sWindowSession.reportDropResult(mWindow, result); 3497 } catch (RemoteException e) { 3498 Log.e(TAG, "Unable to report drop result"); 3499 } 3500 } 3501 3502 // When the drag operation ends, release any local state object 3503 // that may have been in use 3504 if (what == DragEvent.ACTION_DRAG_ENDED) { 3505 setLocalDragState(null); 3506 } 3507 } 3508 } 3509 event.recycle(); 3510 } 3511 3512 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3513 if (mSeq != args.seq) { 3514 // The sequence has changed, so we need to update our value and make 3515 // sure to do a traversal afterward so the window manager is given our 3516 // most recent data. 3517 mSeq = args.seq; 3518 mAttachInfo.mForceReportNewAttributes = true; 3519 scheduleTraversals(); 3520 } 3521 if (mView == null) return; 3522 if (args.localChanges != 0) { 3523 if (mAttachInfo != null) { 3524 mAttachInfo.mSystemUiVisibility = 3525 (mAttachInfo.mSystemUiVisibility & ~args.localChanges) | 3526 (args.localValue & args.localChanges); 3527 mAttachInfo.mRecomputeGlobalAttributes = true; 3528 } 3529 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3530 scheduleTraversals(); 3531 } 3532 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3533 } 3534 3535 public void getLastTouchPoint(Point outLocation) { 3536 outLocation.x = (int) mLastTouchPoint.x; 3537 outLocation.y = (int) mLastTouchPoint.y; 3538 } 3539 3540 public void setDragFocus(View newDragTarget) { 3541 if (mCurrentDragView != newDragTarget) { 3542 mCurrentDragView = newDragTarget; 3543 } 3544 } 3545 3546 private AudioManager getAudioManager() { 3547 if (mView == null) { 3548 throw new IllegalStateException("getAudioManager called when there is no mView"); 3549 } 3550 if (mAudioManager == null) { 3551 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3552 } 3553 return mAudioManager; 3554 } 3555 3556 public AccessibilityInteractionController getAccessibilityInteractionController() { 3557 if (mView == null) { 3558 throw new IllegalStateException("getAccessibilityInteractionController" 3559 + " called when there is no mView"); 3560 } 3561 if (mAccessibilityInteractionController == null) { 3562 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3563 } 3564 return mAccessibilityInteractionController; 3565 } 3566 3567 public AccessibilityPrefetchStrategy getAccessibilityPrefetchStrategy() { 3568 if (mView == null) { 3569 throw new IllegalStateException("getAccessibilityPrefetchStrategy" 3570 + " called when there is no mView"); 3571 } 3572 if (mAccessibilityPrefetchStrategy == null) { 3573 mAccessibilityPrefetchStrategy = new AccessibilityPrefetchStrategy(); 3574 } 3575 return mAccessibilityPrefetchStrategy; 3576 } 3577 3578 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3579 boolean insetsPending) throws RemoteException { 3580 3581 float appScale = mAttachInfo.mApplicationScale; 3582 boolean restore = false; 3583 if (params != null && mTranslator != null) { 3584 restore = true; 3585 params.backup(); 3586 mTranslator.translateWindowLayout(params); 3587 } 3588 if (params != null) { 3589 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3590 } 3591 mPendingConfiguration.seq = 0; 3592 //Log.d(TAG, ">>>>>> CALLING relayout"); 3593 if (params != null && mOrigWindowType != params.type) { 3594 // For compatibility with old apps, don't crash here. 3595 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3596 Slog.w(TAG, "Window type can not be changed after " 3597 + "the window is added; ignoring change of " + mView); 3598 params.type = mOrigWindowType; 3599 } 3600 } 3601 int relayoutResult = sWindowSession.relayout( 3602 mWindow, mSeq, params, 3603 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3604 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3605 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3606 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3607 mPendingConfiguration, mSurface); 3608 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3609 if (restore) { 3610 params.restore(); 3611 } 3612 3613 if (mTranslator != null) { 3614 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3615 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3616 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3617 } 3618 return relayoutResult; 3619 } 3620 3621 /** 3622 * {@inheritDoc} 3623 */ 3624 public void playSoundEffect(int effectId) { 3625 checkThread(); 3626 3627 try { 3628 final AudioManager audioManager = getAudioManager(); 3629 3630 switch (effectId) { 3631 case SoundEffectConstants.CLICK: 3632 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3633 return; 3634 case SoundEffectConstants.NAVIGATION_DOWN: 3635 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3636 return; 3637 case SoundEffectConstants.NAVIGATION_LEFT: 3638 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3639 return; 3640 case SoundEffectConstants.NAVIGATION_RIGHT: 3641 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3642 return; 3643 case SoundEffectConstants.NAVIGATION_UP: 3644 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3645 return; 3646 default: 3647 throw new IllegalArgumentException("unknown effect id " + effectId + 3648 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3649 } 3650 } catch (IllegalStateException e) { 3651 // Exception thrown by getAudioManager() when mView is null 3652 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3653 e.printStackTrace(); 3654 } 3655 } 3656 3657 /** 3658 * {@inheritDoc} 3659 */ 3660 public boolean performHapticFeedback(int effectId, boolean always) { 3661 try { 3662 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3663 } catch (RemoteException e) { 3664 return false; 3665 } 3666 } 3667 3668 /** 3669 * {@inheritDoc} 3670 */ 3671 public View focusSearch(View focused, int direction) { 3672 checkThread(); 3673 if (!(mView instanceof ViewGroup)) { 3674 return null; 3675 } 3676 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3677 } 3678 3679 public void debug() { 3680 mView.debug(); 3681 } 3682 3683 public void dumpGfxInfo(int[] info) { 3684 if (mView != null) { 3685 getGfxInfo(mView, info); 3686 } else { 3687 info[0] = info[1] = 0; 3688 } 3689 } 3690 3691 private void getGfxInfo(View view, int[] info) { 3692 DisplayList displayList = view.mDisplayList; 3693 info[0]++; 3694 if (displayList != null) { 3695 info[1] += displayList.getSize(); 3696 } 3697 3698 if (view instanceof ViewGroup) { 3699 ViewGroup group = (ViewGroup) view; 3700 3701 int count = group.getChildCount(); 3702 for (int i = 0; i < count; i++) { 3703 getGfxInfo(group.getChildAt(i), info); 3704 } 3705 } 3706 } 3707 3708 public void die(boolean immediate) { 3709 if (immediate) { 3710 doDie(); 3711 } else { 3712 mHandler.sendEmptyMessage(MSG_DIE); 3713 } 3714 } 3715 3716 void doDie() { 3717 checkThread(); 3718 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3719 synchronized (this) { 3720 if (mAdded) { 3721 mAdded = false; 3722 dispatchDetachedFromWindow(); 3723 } 3724 3725 if (mAdded && !mFirst) { 3726 destroyHardwareRenderer(); 3727 3728 int viewVisibility = mView.getVisibility(); 3729 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3730 if (mWindowAttributesChanged || viewVisibilityChanged) { 3731 // If layout params have been changed, first give them 3732 // to the window manager to make sure it has the correct 3733 // animation info. 3734 try { 3735 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3736 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3737 sWindowSession.finishDrawing(mWindow); 3738 } 3739 } catch (RemoteException e) { 3740 } 3741 } 3742 3743 mSurface.release(); 3744 } 3745 } 3746 } 3747 3748 public void requestUpdateConfiguration(Configuration config) { 3749 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 3750 mHandler.sendMessage(msg); 3751 } 3752 3753 private void destroyHardwareRenderer() { 3754 if (mAttachInfo.mHardwareRenderer != null) { 3755 mAttachInfo.mHardwareRenderer.destroy(true); 3756 mAttachInfo.mHardwareRenderer = null; 3757 mAttachInfo.mHardwareAccelerated = false; 3758 } 3759 } 3760 3761 void dispatchImeFinishedEvent(int seq, boolean handled) { 3762 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 3763 msg.arg1 = seq; 3764 msg.arg2 = handled ? 1 : 0; 3765 mHandler.sendMessage(msg); 3766 } 3767 3768 public void dispatchFinishInputConnection(InputConnection connection) { 3769 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 3770 mHandler.sendMessage(msg); 3771 } 3772 3773 public void dispatchResized(int w, int h, Rect coveredInsets, 3774 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3775 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3776 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3777 + " visibleInsets=" + visibleInsets.toShortString() 3778 + " reportDraw=" + reportDraw); 3779 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 3780 if (mTranslator != null) { 3781 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3782 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3783 w *= mTranslator.applicationInvertedScale; 3784 h *= mTranslator.applicationInvertedScale; 3785 } 3786 msg.arg1 = w; 3787 msg.arg2 = h; 3788 ResizedInfo ri = new ResizedInfo(); 3789 ri.coveredInsets = new Rect(coveredInsets); 3790 ri.visibleInsets = new Rect(visibleInsets); 3791 ri.newConfig = newConfig; 3792 msg.obj = ri; 3793 mHandler.sendMessage(msg); 3794 } 3795 3796 /** 3797 * Represents a pending input event that is waiting in a queue. 3798 * 3799 * Input events are processed in serial order by the timestamp specified by 3800 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 3801 * one input event to the application at a time and waits for the application 3802 * to finish handling it before delivering the next one. 3803 * 3804 * However, because the application or IME can synthesize and inject multiple 3805 * key events at a time without going through the input dispatcher, we end up 3806 * needing a queue on the application's side. 3807 */ 3808 private static final class QueuedInputEvent { 3809 public static final int FLAG_DELIVER_POST_IME = 1; 3810 3811 public QueuedInputEvent mNext; 3812 3813 public InputEvent mEvent; 3814 public InputEventReceiver mReceiver; 3815 public int mFlags; 3816 3817 // Used for latency calculations. 3818 public long mReceiveTimeNanos; 3819 public long mDeliverTimeNanos; 3820 public long mDeliverPostImeTimeNanos; 3821 } 3822 3823 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3824 InputEventReceiver receiver, int flags) { 3825 QueuedInputEvent q = mQueuedInputEventPool; 3826 if (q != null) { 3827 mQueuedInputEventPoolSize -= 1; 3828 mQueuedInputEventPool = q.mNext; 3829 q.mNext = null; 3830 } else { 3831 q = new QueuedInputEvent(); 3832 } 3833 3834 q.mEvent = event; 3835 q.mReceiver = receiver; 3836 q.mFlags = flags; 3837 return q; 3838 } 3839 3840 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3841 q.mEvent = null; 3842 q.mReceiver = null; 3843 3844 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3845 mQueuedInputEventPoolSize += 1; 3846 q.mNext = mQueuedInputEventPool; 3847 mQueuedInputEventPool = q; 3848 } 3849 } 3850 3851 void enqueueInputEvent(InputEvent event) { 3852 enqueueInputEvent(event, null, 0, false); 3853 } 3854 3855 void enqueueInputEvent(InputEvent event, 3856 InputEventReceiver receiver, int flags, boolean processImmediately) { 3857 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3858 3859 if (ViewDebug.DEBUG_LATENCY) { 3860 q.mReceiveTimeNanos = System.nanoTime(); 3861 q.mDeliverTimeNanos = 0; 3862 q.mDeliverPostImeTimeNanos = 0; 3863 } 3864 3865 // Always enqueue the input event in order, regardless of its time stamp. 3866 // We do this because the application or the IME may inject key events 3867 // in response to touch events and we want to ensure that the injected keys 3868 // are processed in the order they were received and we cannot trust that 3869 // the time stamp of injected events are monotonic. 3870 QueuedInputEvent last = mFirstPendingInputEvent; 3871 if (last == null) { 3872 mFirstPendingInputEvent = q; 3873 } else { 3874 while (last.mNext != null) { 3875 last = last.mNext; 3876 } 3877 last.mNext = q; 3878 } 3879 3880 if (processImmediately) { 3881 doProcessInputEvents(); 3882 } else { 3883 scheduleProcessInputEvents(); 3884 } 3885 } 3886 3887 private void scheduleProcessInputEvents() { 3888 if (!mProcessInputEventsScheduled) { 3889 mProcessInputEventsScheduled = true; 3890 mHandler.sendEmptyMessage(MSG_PROCESS_INPUT_EVENTS); 3891 } 3892 } 3893 3894 private void doProcessInputEvents() { 3895 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3896 QueuedInputEvent q = mFirstPendingInputEvent; 3897 mFirstPendingInputEvent = q.mNext; 3898 q.mNext = null; 3899 mCurrentInputEvent = q; 3900 deliverInputEvent(q); 3901 } 3902 3903 // We are done processing all input events that we can process right now 3904 // so we can clear the pending flag immediately. 3905 if (mProcessInputEventsScheduled) { 3906 mProcessInputEventsScheduled = false; 3907 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 3908 } 3909 } 3910 3911 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3912 if (q != mCurrentInputEvent) { 3913 throw new IllegalStateException("finished input event out of order"); 3914 } 3915 3916 if (ViewDebug.DEBUG_LATENCY) { 3917 final long now = System.nanoTime(); 3918 final long eventTime = q.mEvent.getEventTimeNano(); 3919 final StringBuilder msg = new StringBuilder(); 3920 msg.append("Spent "); 3921 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3922 msg.append("ms processing "); 3923 if (q.mEvent instanceof KeyEvent) { 3924 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3925 msg.append("key event, action="); 3926 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3927 } else { 3928 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3929 msg.append("motion event, action="); 3930 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3931 msg.append(", historySize="); 3932 msg.append(motionEvent.getHistorySize()); 3933 } 3934 msg.append(", handled="); 3935 msg.append(handled); 3936 msg.append(", received at +"); 3937 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3938 if (q.mDeliverTimeNanos != 0) { 3939 msg.append("ms, delivered at +"); 3940 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3941 } 3942 if (q.mDeliverPostImeTimeNanos != 0) { 3943 msg.append("ms, delivered post IME at +"); 3944 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3945 } 3946 msg.append("ms, finished at +"); 3947 msg.append((now - eventTime) * 0.000001f); 3948 msg.append("ms."); 3949 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3950 } 3951 3952 if (q.mReceiver != null) { 3953 q.mReceiver.finishInputEvent(q.mEvent, handled); 3954 } else { 3955 q.mEvent.recycleIfNeededAfterDispatch(); 3956 } 3957 3958 recycleQueuedInputEvent(q); 3959 3960 mCurrentInputEvent = null; 3961 if (mFirstPendingInputEvent != null) { 3962 scheduleProcessInputEvents(); 3963 } 3964 } 3965 3966 final class FrameRunnable implements Runnable { 3967 @Override 3968 public void run() { 3969 mFrameScheduled = false; 3970 doFrame(); 3971 } 3972 } 3973 final FrameRunnable mFrameRunnable = new FrameRunnable(); 3974 boolean mFrameScheduled; 3975 3976 final class WindowInputEventReceiver extends InputEventReceiver { 3977 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3978 super(inputChannel, looper); 3979 } 3980 3981 @Override 3982 public void onInputEvent(InputEvent event) { 3983 enqueueInputEvent(event, this, 0, true); 3984 } 3985 3986 @Override 3987 public void onBatchedInputEventPending() { 3988 scheduleFrame(); 3989 } 3990 } 3991 WindowInputEventReceiver mInputEventReceiver; 3992 3993 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 3994 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 3995 mHandler.sendMessageDelayed(msg, delayMilliseconds); 3996 } 3997 3998 public void cancelInvalidate(View view) { 3999 mHandler.removeMessages(MSG_INVALIDATE, view); 4000 } 4001 4002 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4003 long delayMilliseconds) { 4004 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4005 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4006 } 4007 4008 public void dispatchKey(KeyEvent event) { 4009 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4010 msg.setAsynchronous(true); 4011 mHandler.sendMessage(msg); 4012 } 4013 4014 public void dispatchKeyFromIme(KeyEvent event) { 4015 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4016 msg.setAsynchronous(true); 4017 mHandler.sendMessage(msg); 4018 } 4019 4020 public void dispatchAppVisibility(boolean visible) { 4021 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4022 msg.arg1 = visible ? 1 : 0; 4023 mHandler.sendMessage(msg); 4024 } 4025 4026 public void dispatchGetNewSurface() { 4027 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4028 mHandler.sendMessage(msg); 4029 } 4030 4031 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4032 Message msg = Message.obtain(); 4033 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4034 msg.arg1 = hasFocus ? 1 : 0; 4035 msg.arg2 = inTouchMode ? 1 : 0; 4036 mHandler.sendMessage(msg); 4037 } 4038 4039 public void dispatchCloseSystemDialogs(String reason) { 4040 Message msg = Message.obtain(); 4041 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4042 msg.obj = reason; 4043 mHandler.sendMessage(msg); 4044 } 4045 4046 public void dispatchDragEvent(DragEvent event) { 4047 final int what; 4048 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4049 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4050 mHandler.removeMessages(what); 4051 } else { 4052 what = MSG_DISPATCH_DRAG_EVENT; 4053 } 4054 Message msg = mHandler.obtainMessage(what, event); 4055 mHandler.sendMessage(msg); 4056 } 4057 4058 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4059 int localValue, int localChanges) { 4060 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4061 args.seq = seq; 4062 args.globalVisibility = globalVisibility; 4063 args.localValue = localValue; 4064 args.localChanges = localChanges; 4065 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4066 } 4067 4068 public void dispatchCheckFocus() { 4069 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4070 // This will result in a call to checkFocus() below. 4071 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4072 } 4073 } 4074 4075 /** 4076 * Post a callback to send a 4077 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4078 * This event is send at most once every 4079 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4080 */ 4081 private void postSendWindowContentChangedCallback() { 4082 if (mSendWindowContentChangedAccessibilityEvent == null) { 4083 mSendWindowContentChangedAccessibilityEvent = 4084 new SendWindowContentChangedAccessibilityEvent(); 4085 } 4086 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 4087 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 4088 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4089 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4090 } 4091 } 4092 4093 /** 4094 * Remove a posted callback to send a 4095 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4096 */ 4097 private void removeSendWindowContentChangedCallback() { 4098 if (mSendWindowContentChangedAccessibilityEvent != null) { 4099 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4100 } 4101 } 4102 4103 public boolean showContextMenuForChild(View originalView) { 4104 return false; 4105 } 4106 4107 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4108 return null; 4109 } 4110 4111 public void createContextMenu(ContextMenu menu) { 4112 } 4113 4114 public void childDrawableStateChanged(View child) { 4115 } 4116 4117 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4118 if (mView == null) { 4119 return false; 4120 } 4121 getAccessibilityPrefetchStrategy().onAccessibilityEvent(event); 4122 mAccessibilityManager.sendAccessibilityEvent(event); 4123 return true; 4124 } 4125 4126 void checkThread() { 4127 if (mThread != Thread.currentThread()) { 4128 throw new CalledFromWrongThreadException( 4129 "Only the original thread that created a view hierarchy can touch its views."); 4130 } 4131 } 4132 4133 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4134 // ViewAncestor never intercepts touch event, so this can be a no-op 4135 } 4136 4137 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4138 boolean immediate) { 4139 return scrollToRectOrFocus(rectangle, immediate); 4140 } 4141 4142 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4143 // Do nothing. 4144 } 4145 4146 class TakenSurfaceHolder extends BaseSurfaceHolder { 4147 @Override 4148 public boolean onAllowLockCanvas() { 4149 return mDrawingAllowed; 4150 } 4151 4152 @Override 4153 public void onRelayoutContainer() { 4154 // Not currently interesting -- from changing between fixed and layout size. 4155 } 4156 4157 public void setFormat(int format) { 4158 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4159 } 4160 4161 public void setType(int type) { 4162 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4163 } 4164 4165 @Override 4166 public void onUpdateSurface() { 4167 // We take care of format and type changes on our own. 4168 throw new IllegalStateException("Shouldn't be here"); 4169 } 4170 4171 public boolean isCreating() { 4172 return mIsCreating; 4173 } 4174 4175 @Override 4176 public void setFixedSize(int width, int height) { 4177 throw new UnsupportedOperationException( 4178 "Currently only support sizing from layout"); 4179 } 4180 4181 public void setKeepScreenOn(boolean screenOn) { 4182 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4183 } 4184 } 4185 4186 static class InputMethodCallback extends IInputMethodCallback.Stub { 4187 private WeakReference<ViewRootImpl> mViewAncestor; 4188 4189 public InputMethodCallback(ViewRootImpl viewAncestor) { 4190 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4191 } 4192 4193 public void finishedEvent(int seq, boolean handled) { 4194 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4195 if (viewAncestor != null) { 4196 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4197 } 4198 } 4199 4200 public void sessionCreated(IInputMethodSession session) { 4201 // Stub -- not for use in the client. 4202 } 4203 } 4204 4205 static class W extends IWindow.Stub { 4206 private final WeakReference<ViewRootImpl> mViewAncestor; 4207 4208 W(ViewRootImpl viewAncestor) { 4209 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4210 } 4211 4212 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4213 boolean reportDraw, Configuration newConfig) { 4214 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4215 if (viewAncestor != null) { 4216 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4217 newConfig); 4218 } 4219 } 4220 4221 public void dispatchAppVisibility(boolean visible) { 4222 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4223 if (viewAncestor != null) { 4224 viewAncestor.dispatchAppVisibility(visible); 4225 } 4226 } 4227 4228 public void dispatchGetNewSurface() { 4229 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4230 if (viewAncestor != null) { 4231 viewAncestor.dispatchGetNewSurface(); 4232 } 4233 } 4234 4235 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4236 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4237 if (viewAncestor != null) { 4238 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4239 } 4240 } 4241 4242 private static int checkCallingPermission(String permission) { 4243 try { 4244 return ActivityManagerNative.getDefault().checkPermission( 4245 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4246 } catch (RemoteException e) { 4247 return PackageManager.PERMISSION_DENIED; 4248 } 4249 } 4250 4251 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4252 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4253 if (viewAncestor != null) { 4254 final View view = viewAncestor.mView; 4255 if (view != null) { 4256 if (checkCallingPermission(Manifest.permission.DUMP) != 4257 PackageManager.PERMISSION_GRANTED) { 4258 throw new SecurityException("Insufficient permissions to invoke" 4259 + " executeCommand() from pid=" + Binder.getCallingPid() 4260 + ", uid=" + Binder.getCallingUid()); 4261 } 4262 4263 OutputStream clientStream = null; 4264 try { 4265 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4266 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4267 } catch (IOException e) { 4268 e.printStackTrace(); 4269 } finally { 4270 if (clientStream != null) { 4271 try { 4272 clientStream.close(); 4273 } catch (IOException e) { 4274 e.printStackTrace(); 4275 } 4276 } 4277 } 4278 } 4279 } 4280 } 4281 4282 public void closeSystemDialogs(String reason) { 4283 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4284 if (viewAncestor != null) { 4285 viewAncestor.dispatchCloseSystemDialogs(reason); 4286 } 4287 } 4288 4289 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4290 boolean sync) { 4291 if (sync) { 4292 try { 4293 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4294 } catch (RemoteException e) { 4295 } 4296 } 4297 } 4298 4299 public void dispatchWallpaperCommand(String action, int x, int y, 4300 int z, Bundle extras, boolean sync) { 4301 if (sync) { 4302 try { 4303 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4304 } catch (RemoteException e) { 4305 } 4306 } 4307 } 4308 4309 /* Drag/drop */ 4310 public void dispatchDragEvent(DragEvent event) { 4311 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4312 if (viewAncestor != null) { 4313 viewAncestor.dispatchDragEvent(event); 4314 } 4315 } 4316 4317 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4318 int localValue, int localChanges) { 4319 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4320 if (viewAncestor != null) { 4321 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4322 localValue, localChanges); 4323 } 4324 } 4325 } 4326 4327 /** 4328 * Maintains state information for a single trackball axis, generating 4329 * discrete (DPAD) movements based on raw trackball motion. 4330 */ 4331 static final class TrackballAxis { 4332 /** 4333 * The maximum amount of acceleration we will apply. 4334 */ 4335 static final float MAX_ACCELERATION = 20; 4336 4337 /** 4338 * The maximum amount of time (in milliseconds) between events in order 4339 * for us to consider the user to be doing fast trackball movements, 4340 * and thus apply an acceleration. 4341 */ 4342 static final long FAST_MOVE_TIME = 150; 4343 4344 /** 4345 * Scaling factor to the time (in milliseconds) between events to how 4346 * much to multiple/divide the current acceleration. When movement 4347 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4348 * FAST_MOVE_TIME it divides it. 4349 */ 4350 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4351 4352 float position; 4353 float absPosition; 4354 float acceleration = 1; 4355 long lastMoveTime = 0; 4356 int step; 4357 int dir; 4358 int nonAccelMovement; 4359 4360 void reset(int _step) { 4361 position = 0; 4362 acceleration = 1; 4363 lastMoveTime = 0; 4364 step = _step; 4365 dir = 0; 4366 } 4367 4368 /** 4369 * Add trackball movement into the state. If the direction of movement 4370 * has been reversed, the state is reset before adding the 4371 * movement (so that you don't have to compensate for any previously 4372 * collected movement before see the result of the movement in the 4373 * new direction). 4374 * 4375 * @return Returns the absolute value of the amount of movement 4376 * collected so far. 4377 */ 4378 float collect(float off, long time, String axis) { 4379 long normTime; 4380 if (off > 0) { 4381 normTime = (long)(off * FAST_MOVE_TIME); 4382 if (dir < 0) { 4383 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4384 position = 0; 4385 step = 0; 4386 acceleration = 1; 4387 lastMoveTime = 0; 4388 } 4389 dir = 1; 4390 } else if (off < 0) { 4391 normTime = (long)((-off) * FAST_MOVE_TIME); 4392 if (dir > 0) { 4393 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4394 position = 0; 4395 step = 0; 4396 acceleration = 1; 4397 lastMoveTime = 0; 4398 } 4399 dir = -1; 4400 } else { 4401 normTime = 0; 4402 } 4403 4404 // The number of milliseconds between each movement that is 4405 // considered "normal" and will not result in any acceleration 4406 // or deceleration, scaled by the offset we have here. 4407 if (normTime > 0) { 4408 long delta = time - lastMoveTime; 4409 lastMoveTime = time; 4410 float acc = acceleration; 4411 if (delta < normTime) { 4412 // The user is scrolling rapidly, so increase acceleration. 4413 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4414 if (scale > 1) acc *= scale; 4415 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4416 + off + " normTime=" + normTime + " delta=" + delta 4417 + " scale=" + scale + " acc=" + acc); 4418 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4419 } else { 4420 // The user is scrolling slowly, so decrease acceleration. 4421 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4422 if (scale > 1) acc /= scale; 4423 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4424 + off + " normTime=" + normTime + " delta=" + delta 4425 + " scale=" + scale + " acc=" + acc); 4426 acceleration = acc > 1 ? acc : 1; 4427 } 4428 } 4429 position += off; 4430 return (absPosition = Math.abs(position)); 4431 } 4432 4433 /** 4434 * Generate the number of discrete movement events appropriate for 4435 * the currently collected trackball movement. 4436 * 4437 * @param precision The minimum movement required to generate the 4438 * first discrete movement. 4439 * 4440 * @return Returns the number of discrete movements, either positive 4441 * or negative, or 0 if there is not enough trackball movement yet 4442 * for a discrete movement. 4443 */ 4444 int generate(float precision) { 4445 int movement = 0; 4446 nonAccelMovement = 0; 4447 do { 4448 final int dir = position >= 0 ? 1 : -1; 4449 switch (step) { 4450 // If we are going to execute the first step, then we want 4451 // to do this as soon as possible instead of waiting for 4452 // a full movement, in order to make things look responsive. 4453 case 0: 4454 if (absPosition < precision) { 4455 return movement; 4456 } 4457 movement += dir; 4458 nonAccelMovement += dir; 4459 step = 1; 4460 break; 4461 // If we have generated the first movement, then we need 4462 // to wait for the second complete trackball motion before 4463 // generating the second discrete movement. 4464 case 1: 4465 if (absPosition < 2) { 4466 return movement; 4467 } 4468 movement += dir; 4469 nonAccelMovement += dir; 4470 position += dir > 0 ? -2 : 2; 4471 absPosition = Math.abs(position); 4472 step = 2; 4473 break; 4474 // After the first two, we generate discrete movements 4475 // consistently with the trackball, applying an acceleration 4476 // if the trackball is moving quickly. This is a simple 4477 // acceleration on top of what we already compute based 4478 // on how quickly the wheel is being turned, to apply 4479 // a longer increasing acceleration to continuous movement 4480 // in one direction. 4481 default: 4482 if (absPosition < 1) { 4483 return movement; 4484 } 4485 movement += dir; 4486 position += dir >= 0 ? -1 : 1; 4487 absPosition = Math.abs(position); 4488 float acc = acceleration; 4489 acc *= 1.1f; 4490 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4491 break; 4492 } 4493 } while (true); 4494 } 4495 } 4496 4497 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4498 public CalledFromWrongThreadException(String msg) { 4499 super(msg); 4500 } 4501 } 4502 4503 private SurfaceHolder mHolder = new SurfaceHolder() { 4504 // we only need a SurfaceHolder for opengl. it would be nice 4505 // to implement everything else though, especially the callback 4506 // support (opengl doesn't make use of it right now, but eventually 4507 // will). 4508 public Surface getSurface() { 4509 return mSurface; 4510 } 4511 4512 public boolean isCreating() { 4513 return false; 4514 } 4515 4516 public void addCallback(Callback callback) { 4517 } 4518 4519 public void removeCallback(Callback callback) { 4520 } 4521 4522 public void setFixedSize(int width, int height) { 4523 } 4524 4525 public void setSizeFromLayout() { 4526 } 4527 4528 public void setFormat(int format) { 4529 } 4530 4531 public void setType(int type) { 4532 } 4533 4534 public void setKeepScreenOn(boolean screenOn) { 4535 } 4536 4537 public Canvas lockCanvas() { 4538 return null; 4539 } 4540 4541 public Canvas lockCanvas(Rect dirty) { 4542 return null; 4543 } 4544 4545 public void unlockCanvasAndPost(Canvas canvas) { 4546 } 4547 public Rect getSurfaceFrame() { 4548 return null; 4549 } 4550 }; 4551 4552 static RunQueue getRunQueue() { 4553 RunQueue rq = sRunQueues.get(); 4554 if (rq != null) { 4555 return rq; 4556 } 4557 rq = new RunQueue(); 4558 sRunQueues.set(rq); 4559 return rq; 4560 } 4561 4562 /** 4563 * The run queue is used to enqueue pending work from Views when no Handler is 4564 * attached. The work is executed during the next call to performTraversals on 4565 * the thread. 4566 * @hide 4567 */ 4568 static final class RunQueue { 4569 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4570 4571 void post(Runnable action) { 4572 postDelayed(action, 0); 4573 } 4574 4575 void postDelayed(Runnable action, long delayMillis) { 4576 HandlerAction handlerAction = new HandlerAction(); 4577 handlerAction.action = action; 4578 handlerAction.delay = delayMillis; 4579 4580 synchronized (mActions) { 4581 mActions.add(handlerAction); 4582 } 4583 } 4584 4585 void removeCallbacks(Runnable action) { 4586 final HandlerAction handlerAction = new HandlerAction(); 4587 handlerAction.action = action; 4588 4589 synchronized (mActions) { 4590 final ArrayList<HandlerAction> actions = mActions; 4591 4592 while (actions.remove(handlerAction)) { 4593 // Keep going 4594 } 4595 } 4596 } 4597 4598 void executeActions(Handler handler) { 4599 synchronized (mActions) { 4600 final ArrayList<HandlerAction> actions = mActions; 4601 final int count = actions.size(); 4602 4603 for (int i = 0; i < count; i++) { 4604 final HandlerAction handlerAction = actions.get(i); 4605 handler.postDelayed(handlerAction.action, handlerAction.delay); 4606 } 4607 4608 actions.clear(); 4609 } 4610 } 4611 4612 private static class HandlerAction { 4613 Runnable action; 4614 long delay; 4615 4616 @Override 4617 public boolean equals(Object o) { 4618 if (this == o) return true; 4619 if (o == null || getClass() != o.getClass()) return false; 4620 4621 HandlerAction that = (HandlerAction) o; 4622 return !(action != null ? !action.equals(that.action) : that.action != null); 4623 4624 } 4625 4626 @Override 4627 public int hashCode() { 4628 int result = action != null ? action.hashCode() : 0; 4629 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4630 return result; 4631 } 4632 } 4633 } 4634 4635 /** 4636 * Class for managing the accessibility interaction connection 4637 * based on the global accessibility state. 4638 */ 4639 final class AccessibilityInteractionConnectionManager 4640 implements AccessibilityStateChangeListener { 4641 public void onAccessibilityStateChanged(boolean enabled) { 4642 if (enabled) { 4643 ensureConnection(); 4644 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 4645 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 4646 View focusedView = mView.findFocus(); 4647 if (focusedView != null && focusedView != mView) { 4648 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 4649 } 4650 } 4651 } else { 4652 ensureNoConnection(); 4653 } 4654 } 4655 4656 public void ensureConnection() { 4657 if (mAttachInfo != null) { 4658 final boolean registered = 4659 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 4660 if (!registered) { 4661 mAttachInfo.mAccessibilityWindowId = 4662 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4663 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4664 } 4665 } 4666 } 4667 4668 public void ensureNoConnection() { 4669 final boolean registered = 4670 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 4671 if (registered) { 4672 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 4673 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4674 } 4675 } 4676 } 4677 4678 /** 4679 * This class is an interface this ViewAncestor provides to the 4680 * AccessibilityManagerService to the latter can interact with 4681 * the view hierarchy in this ViewAncestor. 4682 */ 4683 static final class AccessibilityInteractionConnection 4684 extends IAccessibilityInteractionConnection.Stub { 4685 private final WeakReference<ViewRootImpl> mViewRootImpl; 4686 4687 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4688 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4689 } 4690 4691 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4692 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4693 int interrogatingPid, long interrogatingTid) { 4694 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4695 if (viewRootImpl != null && viewRootImpl.mView != null) { 4696 viewRootImpl.getAccessibilityInteractionController() 4697 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4698 interactionId, callback, interrogatingPid, interrogatingTid); 4699 } else { 4700 // We cannot make the call and notify the caller so it does not wait. 4701 try { 4702 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4703 } catch (RemoteException re) { 4704 /* best effort - ignore */ 4705 } 4706 } 4707 } 4708 4709 public void performAccessibilityAction(long accessibilityNodeId, int action, 4710 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4711 int interogatingPid, long interrogatingTid) { 4712 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4713 if (viewRootImpl != null && viewRootImpl.mView != null) { 4714 viewRootImpl.getAccessibilityInteractionController() 4715 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4716 interactionId, callback, interogatingPid, interrogatingTid); 4717 } else { 4718 // We cannot make the call and notify the caller so it does not 4719 try { 4720 callback.setPerformAccessibilityActionResult(false, interactionId); 4721 } catch (RemoteException re) { 4722 /* best effort - ignore */ 4723 } 4724 } 4725 } 4726 4727 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 4728 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4729 int interrogatingPid, long interrogatingTid) { 4730 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4731 if (viewRootImpl != null && viewRootImpl.mView != null) { 4732 viewRootImpl.getAccessibilityInteractionController() 4733 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 4734 interactionId, callback, interrogatingPid, interrogatingTid); 4735 } else { 4736 // We cannot make the call and notify the caller so it does not 4737 try { 4738 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 4739 } catch (RemoteException re) { 4740 /* best effort - ignore */ 4741 } 4742 } 4743 } 4744 4745 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 4746 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4747 int interrogatingPid, long interrogatingTid) { 4748 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4749 if (viewRootImpl != null && viewRootImpl.mView != null) { 4750 viewRootImpl.getAccessibilityInteractionController() 4751 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 4752 interactionId, callback, interrogatingPid, interrogatingTid); 4753 } else { 4754 // We cannot make the call and notify the caller so it does not 4755 try { 4756 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 4757 } catch (RemoteException re) { 4758 /* best effort - ignore */ 4759 } 4760 } 4761 } 4762 } 4763 4764 /** 4765 * Class for managing accessibility interactions initiated from the system 4766 * and targeting the view hierarchy. A *ClientThread method is to be 4767 * called from the interaction connection this ViewAncestor gives the 4768 * system to talk to it and a corresponding *UiThread method that is executed 4769 * on the UI thread. 4770 */ 4771 final class AccessibilityInteractionController { 4772 private static final int POOL_SIZE = 5; 4773 4774 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4775 new ArrayList<AccessibilityNodeInfo>(); 4776 4777 // Reusable poolable arguments for interacting with the view hierarchy 4778 // to fit more arguments than Message and to avoid sharing objects between 4779 // two messages since several threads can send messages concurrently. 4780 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4781 new PoolableManager<SomeArgs>() { 4782 public SomeArgs newInstance() { 4783 return new SomeArgs(); 4784 } 4785 4786 public void onAcquired(SomeArgs info) { 4787 /* do nothing */ 4788 } 4789 4790 public void onReleased(SomeArgs info) { 4791 info.clear(); 4792 } 4793 }, POOL_SIZE) 4794 ); 4795 4796 public class SomeArgs implements Poolable<SomeArgs> { 4797 private SomeArgs mNext; 4798 private boolean mIsPooled; 4799 4800 public Object arg1; 4801 public Object arg2; 4802 public int argi1; 4803 public int argi2; 4804 public int argi3; 4805 4806 public SomeArgs getNextPoolable() { 4807 return mNext; 4808 } 4809 4810 public boolean isPooled() { 4811 return mIsPooled; 4812 } 4813 4814 public void setNextPoolable(SomeArgs args) { 4815 mNext = args; 4816 } 4817 4818 public void setPooled(boolean isPooled) { 4819 mIsPooled = isPooled; 4820 } 4821 4822 private void clear() { 4823 arg1 = null; 4824 arg2 = null; 4825 argi1 = 0; 4826 argi2 = 0; 4827 argi3 = 0; 4828 } 4829 } 4830 4831 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4832 long accessibilityNodeId, int interactionId, 4833 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4834 long interrogatingTid) { 4835 Message message = mHandler.obtainMessage(); 4836 message.what = MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4837 message.arg1 = interrogatingPid; 4838 SomeArgs args = mPool.acquire(); 4839 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4840 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4841 args.argi3 = interactionId; 4842 args.arg1 = callback; 4843 message.obj = args; 4844 // If the interrogation is performed by the same thread as the main UI 4845 // thread in this process, set the message as a static reference so 4846 // after this call completes the same thread but in the interrogating 4847 // client can handle the message to generate the result. 4848 if (interrogatingPid == Process.myPid() 4849 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4850 AccessibilityInteractionClient.getInstanceForThread( 4851 interrogatingTid).setSameThreadMessage(message); 4852 } else { 4853 mHandler.sendMessage(message); 4854 } 4855 } 4856 4857 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4858 SomeArgs args = (SomeArgs) message.obj; 4859 final int interrogatingPid = message.arg1; 4860 final int accessibilityViewId = args.argi1; 4861 final int virtualDescendantId = args.argi2; 4862 final int interactionId = args.argi3; 4863 final IAccessibilityInteractionConnectionCallback callback = 4864 (IAccessibilityInteractionConnectionCallback) args.arg1; 4865 mPool.release(args); 4866 List<AccessibilityNodeInfo> infos = mTempAccessibilityNodeInfoList; 4867 infos.clear(); 4868 try { 4869 if (accessibilityViewId == AccessibilityNodeInfo.UNDEFINED) { 4870 View target = ViewRootImpl.this.mView; 4871 if (target != null && target.getVisibility() == View.VISIBLE) { 4872 infos.add(target.createAccessibilityNodeInfo()); 4873 } 4874 } else { 4875 View target = findViewByAccessibilityId(accessibilityViewId); 4876 if (target != null && target.getVisibility() == View.VISIBLE) { 4877 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4878 if (provider != null) { 4879 infos.add(provider.createAccessibilityNodeInfo(virtualDescendantId)); 4880 } else if (virtualDescendantId == AccessibilityNodeInfo.UNDEFINED) { 4881 getAccessibilityPrefetchStrategy().prefetchAccessibilityNodeInfos( 4882 interrogatingPid, target, infos); 4883 } 4884 } 4885 } 4886 } finally { 4887 try { 4888 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4889 infos.clear(); 4890 } catch (RemoteException re) { 4891 /* ignore - the other side will time out */ 4892 } 4893 } 4894 } 4895 4896 public void findAccessibilityNodeInfoByViewIdClientThread(long accessibilityNodeId, 4897 int viewId, int interactionId, IAccessibilityInteractionConnectionCallback callback, 4898 int interrogatingPid, long interrogatingTid) { 4899 Message message = mHandler.obtainMessage(); 4900 message.what = MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4901 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4902 SomeArgs args = mPool.acquire(); 4903 args.argi1 = viewId; 4904 args.argi2 = interactionId; 4905 args.arg1 = callback; 4906 message.obj = args; 4907 // If the interrogation is performed by the same thread as the main UI 4908 // thread in this process, set the message as a static reference so 4909 // after this call completes the same thread but in the interrogating 4910 // client can handle the message to generate the result. 4911 if (interrogatingPid == Process.myPid() 4912 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4913 AccessibilityInteractionClient.getInstanceForThread( 4914 interrogatingTid).setSameThreadMessage(message); 4915 } else { 4916 mHandler.sendMessage(message); 4917 } 4918 } 4919 4920 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4921 final int accessibilityViewId = message.arg1; 4922 SomeArgs args = (SomeArgs) message.obj; 4923 final int viewId = args.argi1; 4924 final int interactionId = args.argi2; 4925 final IAccessibilityInteractionConnectionCallback callback = 4926 (IAccessibilityInteractionConnectionCallback) args.arg1; 4927 mPool.release(args); 4928 AccessibilityNodeInfo info = null; 4929 try { 4930 View root = null; 4931 if (accessibilityViewId != AccessibilityNodeInfo.UNDEFINED) { 4932 root = findViewByAccessibilityId(accessibilityViewId); 4933 } else { 4934 root = ViewRootImpl.this.mView; 4935 } 4936 if (root != null) { 4937 View target = root.findViewById(viewId); 4938 if (target != null && target.getVisibility() == View.VISIBLE) { 4939 info = target.createAccessibilityNodeInfo(); 4940 } 4941 } 4942 } finally { 4943 try { 4944 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4945 } catch (RemoteException re) { 4946 /* ignore - the other side will time out */ 4947 } 4948 } 4949 } 4950 4951 public void findAccessibilityNodeInfosByTextClientThread(long accessibilityNodeId, 4952 String text, int interactionId, 4953 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4954 long interrogatingTid) { 4955 Message message = mHandler.obtainMessage(); 4956 message.what = MSG_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4957 SomeArgs args = mPool.acquire(); 4958 args.arg1 = text; 4959 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4960 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4961 args.argi3 = interactionId; 4962 args.arg2 = callback; 4963 message.obj = args; 4964 // If the interrogation is performed by the same thread as the main UI 4965 // thread in this process, set the message as a static reference so 4966 // after this call completes the same thread but in the interrogating 4967 // client can handle the message to generate the result. 4968 if (interrogatingPid == Process.myPid() 4969 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4970 AccessibilityInteractionClient.getInstanceForThread( 4971 interrogatingTid).setSameThreadMessage(message); 4972 } else { 4973 mHandler.sendMessage(message); 4974 } 4975 } 4976 4977 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4978 SomeArgs args = (SomeArgs) message.obj; 4979 final String text = (String) args.arg1; 4980 final int accessibilityViewId = args.argi1; 4981 final int virtualDescendantId = args.argi2; 4982 final int interactionId = args.argi3; 4983 final IAccessibilityInteractionConnectionCallback callback = 4984 (IAccessibilityInteractionConnectionCallback) args.arg2; 4985 mPool.release(args); 4986 List<AccessibilityNodeInfo> infos = null; 4987 try { 4988 View target; 4989 if (accessibilityViewId != AccessibilityNodeInfo.UNDEFINED) { 4990 target = findViewByAccessibilityId(accessibilityViewId); 4991 } else { 4992 target = ViewRootImpl.this.mView; 4993 } 4994 if (target != null && target.getVisibility() == View.VISIBLE) { 4995 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4996 if (provider != null) { 4997 infos = provider.findAccessibilityNodeInfosByText(text, 4998 virtualDescendantId); 4999 } else if (virtualDescendantId == AccessibilityNodeInfo.UNDEFINED) { 5000 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 5001 foundViews.clear(); 5002 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 5003 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 5004 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 5005 if (!foundViews.isEmpty()) { 5006 infos = mTempAccessibilityNodeInfoList; 5007 infos.clear(); 5008 final int viewCount = foundViews.size(); 5009 for (int i = 0; i < viewCount; i++) { 5010 View foundView = foundViews.get(i); 5011 if (foundView.getVisibility() == View.VISIBLE) { 5012 provider = foundView.getAccessibilityNodeProvider(); 5013 if (provider != null) { 5014 List<AccessibilityNodeInfo> infosFromProvider = 5015 provider.findAccessibilityNodeInfosByText(text, 5016 virtualDescendantId); 5017 if (infosFromProvider != null) { 5018 infos.addAll(infosFromProvider); 5019 } 5020 } else { 5021 infos.add(foundView.createAccessibilityNodeInfo()); 5022 } 5023 } 5024 } 5025 } 5026 } 5027 } 5028 } finally { 5029 try { 5030 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 5031 } catch (RemoteException re) { 5032 /* ignore - the other side will time out */ 5033 } 5034 } 5035 } 5036 5037 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 5038 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5039 int interogatingPid, long interrogatingTid) { 5040 Message message = mHandler.obtainMessage(); 5041 message.what = MSG_PERFORM_ACCESSIBILITY_ACTION; 5042 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 5043 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 5044 SomeArgs args = mPool.acquire(); 5045 args.argi1 = action; 5046 args.argi2 = interactionId; 5047 args.arg1 = callback; 5048 message.obj = args; 5049 // If the interrogation is performed by the same thread as the main UI 5050 // thread in this process, set the message as a static reference so 5051 // after this call completes the same thread but in the interrogating 5052 // client can handle the message to generate the result. 5053 if (interogatingPid == Process.myPid() 5054 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 5055 AccessibilityInteractionClient.getInstanceForThread( 5056 interrogatingTid).setSameThreadMessage(message); 5057 } else { 5058 mHandler.sendMessage(message); 5059 } 5060 } 5061 5062 public void perfromAccessibilityActionUiThread(Message message) { 5063 final int accessibilityViewId = message.arg1; 5064 final int virtualDescendantId = message.arg2; 5065 SomeArgs args = (SomeArgs) message.obj; 5066 final int action = args.argi1; 5067 final int interactionId = args.argi2; 5068 final IAccessibilityInteractionConnectionCallback callback = 5069 (IAccessibilityInteractionConnectionCallback) args.arg1; 5070 mPool.release(args); 5071 boolean succeeded = false; 5072 try { 5073 View target = findViewByAccessibilityId(accessibilityViewId); 5074 if (target != null && target.getVisibility() == View.VISIBLE) { 5075 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 5076 if (provider != null) { 5077 succeeded = provider.performAccessibilityAction(action, 5078 virtualDescendantId); 5079 } else if (virtualDescendantId == AccessibilityNodeInfo.UNDEFINED) { 5080 switch (action) { 5081 case AccessibilityNodeInfo.ACTION_FOCUS: { 5082 if (!target.hasFocus()) { 5083 // Get out of touch mode since accessibility 5084 // wants to move focus around. 5085 ensureTouchMode(false); 5086 succeeded = target.requestFocus(); 5087 } 5088 } break; 5089 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 5090 if (target.hasFocus()) { 5091 target.clearFocus(); 5092 succeeded = !target.isFocused(); 5093 } 5094 } break; 5095 case AccessibilityNodeInfo.ACTION_SELECT: { 5096 if (!target.isSelected()) { 5097 target.setSelected(true); 5098 succeeded = target.isSelected(); 5099 } 5100 } break; 5101 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 5102 if (target.isSelected()) { 5103 target.setSelected(false); 5104 succeeded = !target.isSelected(); 5105 } 5106 } break; 5107 } 5108 } 5109 } 5110 } finally { 5111 try { 5112 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 5113 } catch (RemoteException re) { 5114 /* ignore - the other side will time out */ 5115 } 5116 } 5117 } 5118 5119 private View findViewByAccessibilityId(int accessibilityId) { 5120 View root = ViewRootImpl.this.mView; 5121 if (root == null) { 5122 return null; 5123 } 5124 View foundView = root.findViewByAccessibilityId(accessibilityId); 5125 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 5126 return null; 5127 } 5128 return foundView; 5129 } 5130 } 5131 5132 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5133 public volatile boolean mIsPending; 5134 5135 public void run() { 5136 if (mView != null) { 5137 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5138 mIsPending = false; 5139 } 5140 } 5141 } 5142 5143 /** 5144 * This class encapsulates a prefetching strategy for the accessibility APIs for 5145 * querying window content.It is responsible to prefetch a batch of 5146 * AccessibilityNodeInfos in addition to the one for a requested node. It caches 5147 * the ids of the prefeteched nodes such that they are fetched only once. 5148 */ 5149 class AccessibilityPrefetchStrategy { 5150 private static final int MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE = 100; 5151 5152 // We need to keep track of what we have sent for each interrogating 5153 // process. Usually there will be only one such process but we 5154 // should support the general case. Note that the accessibility event 5155 // stream will take care of clearing caches of querying processes that 5156 // are not longer alive, so we do not waste memory. 5157 private final LongSparseArray<AccessibilityNodeInfoCache> mAccessibilityNodeInfoCaches = 5158 new LongSparseArray<AccessibilityNodeInfoCache>(); 5159 5160 private AccessibilityNodeInfoCache getCacheForInterrogatingPid(long interrogatingPid) { 5161 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.get(interrogatingPid); 5162 if (cache == null) { 5163 cache = AccessibilityNodeInfoCache.newAccessibilityNodeInfoCache(); 5164 mAccessibilityNodeInfoCaches.put(interrogatingPid, cache); 5165 } 5166 return cache; 5167 } 5168 5169 public void onAccessibilityEvent(AccessibilityEvent event) { 5170 final int cacheCount = mAccessibilityNodeInfoCaches.size(); 5171 for (int i = 0; i < cacheCount; i++) { 5172 AccessibilityNodeInfoCache cache = mAccessibilityNodeInfoCaches.valueAt(i); 5173 cache.onAccessibilityEvent(event); 5174 } 5175 } 5176 5177 public void prefetchAccessibilityNodeInfos(long interrogatingPid, View root, 5178 List<AccessibilityNodeInfo> outInfos) { 5179 addAndCacheNotCachedNodeInfo(interrogatingPid, root, outInfos); 5180 addAndCacheNotCachedPredecessorInfos(interrogatingPid, root, outInfos); 5181 addAndCacheNotCachedDescendantInfos(interrogatingPid, root, outInfos); 5182 } 5183 5184 private void addAndCacheNotCachedNodeInfo(long interrogatingPid, 5185 View view, List<AccessibilityNodeInfo> outInfos) { 5186 final long accessibilityNodeId = AccessibilityNodeInfo.makeNodeId( 5187 view.getAccessibilityViewId(), AccessibilityNodeInfo.UNDEFINED); 5188 AccessibilityNodeInfoCache cache = getCacheForInterrogatingPid(interrogatingPid); 5189 if (!cache.containsKey(accessibilityNodeId)) { 5190 // Account for the ids of the fetched infos. The infos will be 5191 // cached in the window querying process. We just need to know 5192 // which infos are cached to avoid fetching a cached one again. 5193 cache.put(accessibilityNodeId, null); 5194 outInfos.add(view.createAccessibilityNodeInfo()); 5195 } 5196 } 5197 5198 private void addAndCacheNotCachedPredecessorInfos(long interrogatingPid, View view, 5199 List<AccessibilityNodeInfo> outInfos) { 5200 ViewParent predecessor = view.getParent(); 5201 while (predecessor instanceof View 5202 && outInfos.size() < MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE) { 5203 View predecessorView = (View) predecessor; 5204 addAndCacheNotCachedNodeInfo(interrogatingPid, predecessorView, outInfos); 5205 predecessor = predecessor.getParent(); 5206 } 5207 } 5208 5209 private void addAndCacheNotCachedDescendantInfos(long interrogatingPid, View view, 5210 List<AccessibilityNodeInfo> outInfos) { 5211 if (outInfos.size() > MAX_ACCESSIBILITY_NODE_INFO_BATCH_SIZE 5212 || view.getAccessibilityNodeProvider() != null) { 5213 return; 5214 } 5215 addAndCacheNotCachedNodeInfo(interrogatingPid, view, outInfos); 5216 if (view instanceof ViewGroup) { 5217 ViewGroup rootGroup = (ViewGroup) view; 5218 final int childCount = rootGroup.getChildCount(); 5219 for (int i = 0; i < childCount; i++) { 5220 View child = rootGroup.getChildAt(i); 5221 addAndCacheNotCachedDescendantInfos(interrogatingPid, child, outInfos); 5222 } 5223 } 5224 } 5225 } 5226} 5227