ViewRootImpl.java revision faec826bd6051e41e1299cd14d580a4f50f6fe97
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.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 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.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 private static final boolean DEBUG_INPUT_PROCESSING = false || LOCAL_LOGV; 111 112 private static final boolean USE_RENDER_THREAD = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 130 131 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 132 static boolean sFirstDrawComplete = false; 133 134 static final ArrayList<ComponentCallbacks> sConfigCallbacks 135 = new ArrayList<ComponentCallbacks>(); 136 137 private static boolean sUseRenderThread = false; 138 private static boolean sRenderThreadQueried = false; 139 private static final Object[] sRenderThreadQueryLock = new Object[0]; 140 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 final String mBasePackageName; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 final SimulatedDpad mSimulatedDpad; 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 175 View mAccessibilityFocusedHost; 176 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 177 178 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 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 int mTraversalBarrier; 216 boolean mWillDrawSoon; 217 /** Set to true while in performTraversals for detecting when die(true) is called from internal 218 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 219 boolean mIsInTraversal; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 boolean mLastOverscanRequested; 233 234 /** Event was not handled and is finished. 235 * @hide */ 236 public static final int EVENT_NOT_HANDLED = 0; 237 /** Event was handled and is finished. 238 * @hide */ 239 public static final int EVENT_HANDLED = 1; 240 /** Event is waiting on the IME. 241 * @hide */ 242 public static final int EVENT_PENDING_IME = 2; 243 /** Event requires post-IME dispatch. 244 * @hide */ 245 public static final int EVENT_POST_IME = 3; 246 247 // Pool of queued input events. 248 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 249 private QueuedInputEvent mQueuedInputEventPool; 250 private int mQueuedInputEventPoolSize; 251 252 /* Input event queue. 253 * Pending input events are input events waiting to be handled by the application. Current 254 * input events are input events which are being handled but are waiting on some action by the 255 * IME, even if they themselves may not need to be handled by the IME. 256 */ 257 QueuedInputEvent mPendingInputEventHead; 258 QueuedInputEvent mPendingInputEventTail; 259 int mPendingInputEventCount; 260 QueuedInputEvent mActiveInputEventHead; 261 QueuedInputEvent mActiveInputEventTail; 262 int mActiveInputEventCount; 263 boolean mProcessInputEventsScheduled; 264 String mPendingInputEventQueueLengthCounterName = "pq"; 265 String mActiveInputEventQueueLengthCounterName = "aq"; 266 267 boolean mWindowAttributesChanged = false; 268 int mWindowAttributesChangesFlag = 0; 269 270 // These can be accessed by any thread, must be protected with a lock. 271 // Surface can never be reassigned or cleared (use Surface.clear()). 272 private final Surface mSurface = new Surface(); 273 274 boolean mAdded; 275 boolean mAddedTouchMode; 276 277 final CompatibilityInfoHolder mCompatibilityInfo; 278 279 // These are accessed by multiple threads. 280 final Rect mWinFrame; // frame given by window manager. 281 282 final Rect mPendingOverscanInsets = new Rect(); 283 final Rect mPendingVisibleInsets = new Rect(); 284 final Rect mPendingContentInsets = new Rect(); 285 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 286 = new ViewTreeObserver.InternalInsetsInfo(); 287 288 final Rect mFitSystemWindowsInsets = new Rect(); 289 290 final Configuration mLastConfiguration = new Configuration(); 291 final Configuration mPendingConfiguration = new Configuration(); 292 293 boolean mScrollMayChange; 294 int mSoftInputMode; 295 WeakReference<View> mLastScrolledFocus; 296 int mScrollY; 297 int mCurScrollY; 298 Scroller mScroller; 299 HardwareLayer mResizeBuffer; 300 long mResizeBufferStartTime; 301 int mResizeBufferDuration; 302 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 303 private ArrayList<LayoutTransition> mPendingTransitions; 304 305 final ViewConfiguration mViewConfiguration; 306 307 /* Drag/drop */ 308 ClipDescription mDragDescription; 309 View mCurrentDragView; 310 volatile Object mLocalDragState; 311 final PointF mDragPoint = new PointF(); 312 final PointF mLastTouchPoint = new PointF(); 313 314 private boolean mProfileRendering; 315 private Choreographer.FrameCallback mRenderProfiler; 316 private boolean mRenderProfilingEnabled; 317 318 // Variables to track frames per second, enabled via DEBUG_FPS flag 319 private long mFpsStartTime = -1; 320 private long mFpsPrevTime = -1; 321 private int mFpsNumFrames; 322 323 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 324 325 /** 326 * see {@link #playSoundEffect(int)} 327 */ 328 AudioManager mAudioManager; 329 330 final AccessibilityManager mAccessibilityManager; 331 332 AccessibilityInteractionController mAccessibilityInteractionController; 333 334 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 335 336 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 337 338 HashSet<View> mTempHashSet; 339 340 private final int mDensity; 341 private final int mNoncompatDensity; 342 343 private boolean mInLayout = false; 344 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 345 boolean mHandlingLayoutInLayoutRequest = false; 346 347 private int mViewLayoutDirectionInitial; 348 349 /** 350 * Consistency verifier for debugging purposes. 351 */ 352 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 353 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 354 new InputEventConsistencyVerifier(this, 0) : null; 355 356 static final class SystemUiVisibilityInfo { 357 int seq; 358 int globalVisibility; 359 int localValue; 360 int localChanges; 361 } 362 363 public ViewRootImpl(Context context, Display display) { 364 super(); 365 366 if (MEASURE_LATENCY) { 367 if (lt == null) { 368 lt = new LatencyTimer(100, 1000); 369 } 370 } 371 372 // Initialize the statics when this class is first instantiated. This is 373 // done here instead of in the static block because Zygote does not 374 // allow the spawning of threads. 375 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 376 mDisplay = display; 377 mBasePackageName = context.getBasePackageName(); 378 379 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 380 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 381 382 mThread = Thread.currentThread(); 383 mLocation = new WindowLeaked(null); 384 mLocation.fillInStackTrace(); 385 mWidth = -1; 386 mHeight = -1; 387 mDirty = new Rect(); 388 mTempRect = new Rect(); 389 mVisRect = new Rect(); 390 mWinFrame = new Rect(); 391 mWindow = new W(this); 392 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 393 mInputMethodCallback = new InputMethodCallback(this); 394 mViewVisibility = View.GONE; 395 mTransparentRegion = new Region(); 396 mPreviousTransparentRegion = new Region(); 397 mFirst = true; // true for the first time the view is added 398 mAdded = false; 399 mAccessibilityManager = AccessibilityManager.getInstance(context); 400 mAccessibilityInteractionConnectionManager = 401 new AccessibilityInteractionConnectionManager(); 402 mAccessibilityManager.addAccessibilityStateChangeListener( 403 mAccessibilityInteractionConnectionManager); 404 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 405 mViewConfiguration = ViewConfiguration.get(context); 406 mDensity = context.getResources().getDisplayMetrics().densityDpi; 407 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 408 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 409 mChoreographer = Choreographer.getInstance(); 410 411 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 412 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 413 loadSystemProperties(); 414 mSimulatedDpad = new SimulatedDpad(context); 415 } 416 417 /** 418 * @return True if the application requests the use of a separate render thread, 419 * false otherwise 420 */ 421 private static boolean isRenderThreadRequested(Context context) { 422 if (USE_RENDER_THREAD) { 423 synchronized (sRenderThreadQueryLock) { 424 if (!sRenderThreadQueried) { 425 final PackageManager packageManager = context.getPackageManager(); 426 final String packageName = context.getApplicationInfo().packageName; 427 try { 428 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 429 PackageManager.GET_META_DATA); 430 if (applicationInfo.metaData != null) { 431 sUseRenderThread = applicationInfo.metaData.getBoolean( 432 "android.graphics.renderThread", false); 433 } 434 } catch (PackageManager.NameNotFoundException e) { 435 } finally { 436 sRenderThreadQueried = true; 437 } 438 } 439 return sUseRenderThread; 440 } 441 } else { 442 return false; 443 } 444 } 445 446 public static void addFirstDrawHandler(Runnable callback) { 447 synchronized (sFirstDrawHandlers) { 448 if (!sFirstDrawComplete) { 449 sFirstDrawHandlers.add(callback); 450 } 451 } 452 } 453 454 public static void addConfigCallback(ComponentCallbacks callback) { 455 synchronized (sConfigCallbacks) { 456 sConfigCallbacks.add(callback); 457 } 458 } 459 460 // FIXME for perf testing only 461 private boolean mProfile = false; 462 463 /** 464 * Call this to profile the next traversal call. 465 * FIXME for perf testing only. Remove eventually 466 */ 467 public void profile() { 468 mProfile = true; 469 } 470 471 /** 472 * Indicates whether we are in touch mode. Calling this method triggers an IPC 473 * call and should be avoided whenever possible. 474 * 475 * @return True, if the device is in touch mode, false otherwise. 476 * 477 * @hide 478 */ 479 static boolean isInTouchMode() { 480 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 481 if (windowSession != null) { 482 try { 483 return windowSession.getInTouchMode(); 484 } catch (RemoteException e) { 485 } 486 } 487 return false; 488 } 489 490 /** 491 * We have one child 492 */ 493 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 494 synchronized (this) { 495 if (mView == null) { 496 mView = view; 497 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 498 mFallbackEventHandler.setView(view); 499 mWindowAttributes.copyFrom(attrs); 500 if (mWindowAttributes.packageName == null) { 501 mWindowAttributes.packageName = mBasePackageName; 502 } 503 attrs = mWindowAttributes; 504 // Keep track of the actual window flags supplied by the client. 505 mClientWindowLayoutFlags = attrs.flags; 506 507 setAccessibilityFocus(null, null); 508 509 if (view instanceof RootViewSurfaceTaker) { 510 mSurfaceHolderCallback = 511 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 512 if (mSurfaceHolderCallback != null) { 513 mSurfaceHolder = new TakenSurfaceHolder(); 514 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 515 } 516 } 517 518 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 519 mTranslator = compatibilityInfo.getTranslator(); 520 521 // If the application owns the surface, don't enable hardware acceleration 522 if (mSurfaceHolder == null) { 523 enableHardwareAcceleration(mView.getContext(), attrs); 524 } 525 526 boolean restore = false; 527 if (mTranslator != null) { 528 mSurface.setCompatibilityTranslator(mTranslator); 529 restore = true; 530 attrs.backup(); 531 mTranslator.translateWindowLayout(attrs); 532 } 533 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 534 535 if (!compatibilityInfo.supportsScreen()) { 536 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 537 mLastInCompatMode = true; 538 } 539 540 mSoftInputMode = attrs.softInputMode; 541 mWindowAttributesChanged = true; 542 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 543 mAttachInfo.mRootView = view; 544 mAttachInfo.mScalingRequired = mTranslator != null; 545 mAttachInfo.mApplicationScale = 546 mTranslator == null ? 1.0f : mTranslator.applicationScale; 547 if (panelParentView != null) { 548 mAttachInfo.mPanelParentWindowToken 549 = panelParentView.getApplicationWindowToken(); 550 } 551 mAdded = true; 552 int res; /* = WindowManagerImpl.ADD_OKAY; */ 553 554 // Schedule the first layout -before- adding to the window 555 // manager, to make sure we do the relayout before receiving 556 // any other events from the system. 557 requestLayout(); 558 if ((mWindowAttributes.inputFeatures 559 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 560 mInputChannel = new InputChannel(); 561 } 562 try { 563 mOrigWindowType = mWindowAttributes.type; 564 mAttachInfo.mRecomputeGlobalAttributes = true; 565 collectViewAttributes(); 566 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 567 getHostVisibility(), mDisplay.getDisplayId(), 568 mAttachInfo.mContentInsets, mInputChannel); 569 } catch (RemoteException e) { 570 mAdded = false; 571 mView = null; 572 mAttachInfo.mRootView = null; 573 mInputChannel = null; 574 mFallbackEventHandler.setView(null); 575 unscheduleTraversals(); 576 setAccessibilityFocus(null, null); 577 throw new RuntimeException("Adding window failed", e); 578 } finally { 579 if (restore) { 580 attrs.restore(); 581 } 582 } 583 584 if (mTranslator != null) { 585 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 586 } 587 mPendingOverscanInsets.set(0, 0, 0, 0); 588 mPendingContentInsets.set(mAttachInfo.mContentInsets); 589 mPendingVisibleInsets.set(0, 0, 0, 0); 590 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 591 if (res < WindowManagerGlobal.ADD_OKAY) { 592 mAttachInfo.mRootView = null; 593 mAdded = false; 594 mFallbackEventHandler.setView(null); 595 unscheduleTraversals(); 596 setAccessibilityFocus(null, null); 597 switch (res) { 598 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 599 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 600 throw new WindowManager.BadTokenException( 601 "Unable to add window -- token " + attrs.token 602 + " is not valid; is your activity running?"); 603 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 604 throw new WindowManager.BadTokenException( 605 "Unable to add window -- token " + attrs.token 606 + " is not for an application"); 607 case WindowManagerGlobal.ADD_APP_EXITING: 608 throw new WindowManager.BadTokenException( 609 "Unable to add window -- app for token " + attrs.token 610 + " is exiting"); 611 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 612 throw new WindowManager.BadTokenException( 613 "Unable to add window -- window " + mWindow 614 + " has already been added"); 615 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 616 // Silently ignore -- we would have just removed it 617 // right away, anyway. 618 return; 619 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 620 throw new WindowManager.BadTokenException( 621 "Unable to add window " + mWindow + 622 " -- another window of this type already exists"); 623 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 624 throw new WindowManager.BadTokenException( 625 "Unable to add window " + mWindow + 626 " -- permission denied for this window type"); 627 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 628 throw new WindowManager.InvalidDisplayException( 629 "Unable to add window " + mWindow + 630 " -- the specified display can not be found"); 631 } 632 throw new RuntimeException( 633 "Unable to add window -- unknown error code " + res); 634 } 635 636 if (view instanceof RootViewSurfaceTaker) { 637 mInputQueueCallback = 638 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 639 } 640 if (mInputChannel != null) { 641 if (mInputQueueCallback != null) { 642 mInputQueue = new InputQueue(mInputChannel); 643 mInputQueueCallback.onInputQueueCreated(mInputQueue); 644 } else { 645 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 646 Looper.myLooper()); 647 } 648 } 649 650 view.assignParent(this); 651 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 652 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 653 654 if (mAccessibilityManager.isEnabled()) { 655 mAccessibilityInteractionConnectionManager.ensureConnection(); 656 } 657 658 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 659 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 660 } 661 662 mPendingInputEventQueueLengthCounterName = "pq:" + attrs.getTitle(); 663 mActiveInputEventQueueLengthCounterName = "aq:" + attrs.getTitle(); 664 } 665 } 666 } 667 668 void destroyHardwareResources() { 669 if (mAttachInfo.mHardwareRenderer != null) { 670 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 671 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 672 } 673 mAttachInfo.mHardwareRenderer.destroy(false); 674 } 675 } 676 677 void terminateHardwareResources() { 678 if (mAttachInfo.mHardwareRenderer != null) { 679 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 680 mAttachInfo.mHardwareRenderer.destroy(false); 681 } 682 } 683 684 void destroyHardwareLayers() { 685 if (mThread != Thread.currentThread()) { 686 if (mAttachInfo.mHardwareRenderer != null && 687 mAttachInfo.mHardwareRenderer.isEnabled()) { 688 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 689 } 690 } else { 691 if (mAttachInfo.mHardwareRenderer != null && 692 mAttachInfo.mHardwareRenderer.isEnabled()) { 693 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 694 } 695 } 696 } 697 698 void pushHardwareLayerUpdate(HardwareLayer layer) { 699 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 700 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 701 } 702 } 703 704 public boolean attachFunctor(int functor) { 705 //noinspection SimplifiableIfStatement 706 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 707 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 708 } 709 return false; 710 } 711 712 public void detachFunctor(int functor) { 713 if (mAttachInfo.mHardwareRenderer != null) { 714 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 715 } 716 } 717 718 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 719 mAttachInfo.mHardwareAccelerated = false; 720 mAttachInfo.mHardwareAccelerationRequested = false; 721 722 // Don't enable hardware acceleration when the application is in compatibility mode 723 if (mTranslator != null) return; 724 725 // Try to enable hardware acceleration if requested 726 final boolean hardwareAccelerated = 727 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 728 729 if (hardwareAccelerated) { 730 if (!HardwareRenderer.isAvailable()) { 731 return; 732 } 733 734 // Persistent processes (including the system) should not do 735 // accelerated rendering on low-end devices. In that case, 736 // sRendererDisabled will be set. In addition, the system process 737 // itself should never do accelerated rendering. In that case, both 738 // sRendererDisabled and sSystemRendererDisabled are set. When 739 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 740 // can be used by code on the system process to escape that and enable 741 // HW accelerated drawing. (This is basically for the lock screen.) 742 743 final boolean fakeHwAccelerated = (attrs.privateFlags & 744 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 745 final boolean forceHwAccelerated = (attrs.privateFlags & 746 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 747 748 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 749 && forceHwAccelerated)) { 750 // Don't enable hardware acceleration when we're not on the main thread 751 if (!HardwareRenderer.sSystemRendererDisabled && 752 Looper.getMainLooper() != Looper.myLooper()) { 753 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 754 + "acceleration outside of the main thread, aborting"); 755 return; 756 } 757 758 final boolean renderThread = isRenderThreadRequested(context); 759 if (renderThread) { 760 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 761 } 762 763 if (mAttachInfo.mHardwareRenderer != null) { 764 mAttachInfo.mHardwareRenderer.destroy(true); 765 } 766 767 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 768 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 769 if (mAttachInfo.mHardwareRenderer != null) { 770 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 771 mAttachInfo.mHardwareAccelerated = 772 mAttachInfo.mHardwareAccelerationRequested = true; 773 } 774 } else if (fakeHwAccelerated) { 775 // The window had wanted to use hardware acceleration, but this 776 // is not allowed in its process. By setting this flag, it can 777 // still render as if it was accelerated. This is basically for 778 // the preview windows the window manager shows for launching 779 // applications, so they will look more like the app being launched. 780 mAttachInfo.mHardwareAccelerationRequested = true; 781 } 782 } 783 } 784 785 public View getView() { 786 return mView; 787 } 788 789 final WindowLeaked getLocation() { 790 return mLocation; 791 } 792 793 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 794 synchronized (this) { 795 int oldSoftInputMode = mWindowAttributes.softInputMode; 796 // Keep track of the actual window flags supplied by the client. 797 mClientWindowLayoutFlags = attrs.flags; 798 // preserve compatible window flag if exists. 799 int compatibleWindowFlag = 800 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 801 // transfer over system UI visibility values as they carry current state. 802 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 803 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 804 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 805 if (mWindowAttributes.packageName == null) { 806 mWindowAttributes.packageName = mBasePackageName; 807 } 808 mWindowAttributes.flags |= compatibleWindowFlag; 809 810 applyKeepScreenOnFlag(mWindowAttributes); 811 812 if (newView) { 813 mSoftInputMode = attrs.softInputMode; 814 requestLayout(); 815 } 816 // Don't lose the mode we last auto-computed. 817 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 818 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 819 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 820 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 821 | (oldSoftInputMode 822 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 823 } 824 mWindowAttributesChanged = true; 825 scheduleTraversals(); 826 } 827 } 828 829 void handleAppVisibility(boolean visible) { 830 if (mAppVisible != visible) { 831 mAppVisible = visible; 832 scheduleTraversals(); 833 } 834 } 835 836 void handleGetNewSurface() { 837 mNewSurfaceNeeded = true; 838 mFullRedrawNeeded = true; 839 scheduleTraversals(); 840 } 841 842 void handleScreenStateChange(boolean on) { 843 if (on != mAttachInfo.mScreenOn) { 844 mAttachInfo.mScreenOn = on; 845 if (mView != null) { 846 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 847 } 848 if (on) { 849 mFullRedrawNeeded = true; 850 scheduleTraversals(); 851 } 852 } 853 } 854 855 @Override 856 public void requestFitSystemWindows() { 857 checkThread(); 858 mFitSystemWindowsRequested = true; 859 scheduleTraversals(); 860 } 861 862 @Override 863 public void requestLayout() { 864 if (!mHandlingLayoutInLayoutRequest) { 865 checkThread(); 866 mLayoutRequested = true; 867 scheduleTraversals(); 868 } 869 } 870 871 @Override 872 public boolean isLayoutRequested() { 873 return mLayoutRequested; 874 } 875 876 void invalidate() { 877 mDirty.set(0, 0, mWidth, mHeight); 878 scheduleTraversals(); 879 } 880 881 void invalidateWorld(View view) { 882 view.invalidate(); 883 if (view instanceof ViewGroup) { 884 ViewGroup parent = (ViewGroup) view; 885 for (int i = 0; i < parent.getChildCount(); i++) { 886 invalidateWorld(parent.getChildAt(i)); 887 } 888 } 889 } 890 891 @Override 892 public void invalidateChild(View child, Rect dirty) { 893 invalidateChildInParent(null, dirty); 894 } 895 896 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 897 checkThread(); 898 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 899 900 if (dirty == null) { 901 invalidate(); 902 return null; 903 } else if (dirty.isEmpty() && !mIsAnimating) { 904 return null; 905 } 906 907 if (mCurScrollY != 0 || mTranslator != null) { 908 mTempRect.set(dirty); 909 dirty = mTempRect; 910 if (mCurScrollY != 0) { 911 dirty.offset(0, -mCurScrollY); 912 } 913 if (mTranslator != null) { 914 mTranslator.translateRectInAppWindowToScreen(dirty); 915 } 916 if (mAttachInfo.mScalingRequired) { 917 dirty.inset(-1, -1); 918 } 919 } 920 921 final Rect localDirty = mDirty; 922 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 923 mAttachInfo.mSetIgnoreDirtyState = true; 924 mAttachInfo.mIgnoreDirtyState = true; 925 } 926 927 // Add the new dirty rect to the current one 928 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 929 // Intersect with the bounds of the window to skip 930 // updates that lie outside of the visible region 931 final float appScale = mAttachInfo.mApplicationScale; 932 final boolean intersected = localDirty.intersect(0, 0, 933 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 934 if (!intersected) { 935 localDirty.setEmpty(); 936 } 937 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 938 scheduleTraversals(); 939 } 940 941 return null; 942 } 943 944 void setStopped(boolean stopped) { 945 if (mStopped != stopped) { 946 mStopped = stopped; 947 if (!stopped) { 948 scheduleTraversals(); 949 } 950 } 951 } 952 953 public ViewParent getParent() { 954 return null; 955 } 956 957 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 958 if (child != mView) { 959 throw new RuntimeException("child is not mine, honest!"); 960 } 961 // Note: don't apply scroll offset, because we want to know its 962 // visibility in the virtual canvas being given to the view hierarchy. 963 return r.intersect(0, 0, mWidth, mHeight); 964 } 965 966 public void bringChildToFront(View child) { 967 } 968 969 int getHostVisibility() { 970 return mAppVisible ? mView.getVisibility() : View.GONE; 971 } 972 973 void disposeResizeBuffer() { 974 if (mResizeBuffer != null) { 975 mResizeBuffer.destroy(); 976 mResizeBuffer = null; 977 } 978 } 979 980 /** 981 * Add LayoutTransition to the list of transitions to be started in the next traversal. 982 * This list will be cleared after the transitions on the list are start()'ed. These 983 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 984 * happens during the layout phase of traversal, which we want to complete before any of the 985 * animations are started (because those animations may side-effect properties that layout 986 * depends upon, like the bounding rectangles of the affected views). So we add the transition 987 * to the list and it is started just prior to starting the drawing phase of traversal. 988 * 989 * @param transition The LayoutTransition to be started on the next traversal. 990 * 991 * @hide 992 */ 993 public void requestTransitionStart(LayoutTransition transition) { 994 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 995 if (mPendingTransitions == null) { 996 mPendingTransitions = new ArrayList<LayoutTransition>(); 997 } 998 mPendingTransitions.add(transition); 999 } 1000 } 1001 1002 void scheduleTraversals() { 1003 if (!mTraversalScheduled) { 1004 mTraversalScheduled = true; 1005 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 1006 mChoreographer.postCallback( 1007 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1008 scheduleConsumeBatchedInput(); 1009 } 1010 } 1011 1012 void unscheduleTraversals() { 1013 if (mTraversalScheduled) { 1014 mTraversalScheduled = false; 1015 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1016 mChoreographer.removeCallbacks( 1017 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1018 } 1019 } 1020 1021 void doTraversal() { 1022 if (mTraversalScheduled) { 1023 mTraversalScheduled = false; 1024 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1025 1026 if (mProfile) { 1027 Debug.startMethodTracing("ViewAncestor"); 1028 } 1029 1030 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1031 try { 1032 performTraversals(); 1033 } finally { 1034 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1035 } 1036 1037 if (mProfile) { 1038 Debug.stopMethodTracing(); 1039 mProfile = false; 1040 } 1041 } 1042 } 1043 1044 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1045 // Update window's global keep screen on flag: if a view has requested 1046 // that the screen be kept on, then it is always set; otherwise, it is 1047 // set to whatever the client last requested for the global state. 1048 if (mAttachInfo.mKeepScreenOn) { 1049 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1050 } else { 1051 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1052 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1053 } 1054 } 1055 1056 private boolean collectViewAttributes() { 1057 final View.AttachInfo attachInfo = mAttachInfo; 1058 if (attachInfo.mRecomputeGlobalAttributes) { 1059 //Log.i(TAG, "Computing view hierarchy attributes!"); 1060 attachInfo.mRecomputeGlobalAttributes = false; 1061 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1062 attachInfo.mKeepScreenOn = false; 1063 attachInfo.mSystemUiVisibility = 0; 1064 attachInfo.mHasSystemUiListeners = false; 1065 mView.dispatchCollectViewAttributes(attachInfo, 0); 1066 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1067 WindowManager.LayoutParams params = mWindowAttributes; 1068 if (attachInfo.mKeepScreenOn != oldScreenOn 1069 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1070 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1071 applyKeepScreenOnFlag(params); 1072 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1073 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1074 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1075 return true; 1076 } 1077 } 1078 return false; 1079 } 1080 1081 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1082 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1083 int childWidthMeasureSpec; 1084 int childHeightMeasureSpec; 1085 boolean windowSizeMayChange = false; 1086 1087 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1088 "Measuring " + host + " in display " + desiredWindowWidth 1089 + "x" + desiredWindowHeight + "..."); 1090 1091 boolean goodMeasure = false; 1092 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1093 // On large screens, we don't want to allow dialogs to just 1094 // stretch to fill the entire width of the screen to display 1095 // one line of text. First try doing the layout at a smaller 1096 // size to see if it will fit. 1097 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1098 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1099 int baseSize = 0; 1100 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1101 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1102 } 1103 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1104 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1105 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1106 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1107 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1108 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1109 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1110 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1111 goodMeasure = true; 1112 } else { 1113 // Didn't fit in that size... try expanding a bit. 1114 baseSize = (baseSize+desiredWindowWidth)/2; 1115 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1116 + baseSize); 1117 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1118 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1119 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1120 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1121 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1122 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1123 goodMeasure = true; 1124 } 1125 } 1126 } 1127 } 1128 1129 if (!goodMeasure) { 1130 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1131 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1132 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1133 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1134 windowSizeMayChange = true; 1135 } 1136 } 1137 1138 if (DBG) { 1139 System.out.println("======================================"); 1140 System.out.println("performTraversals -- after measure"); 1141 host.debug(); 1142 } 1143 1144 return windowSizeMayChange; 1145 } 1146 1147 private void performTraversals() { 1148 // cache mView since it is used so much below... 1149 final View host = mView; 1150 1151 if (DBG) { 1152 System.out.println("======================================"); 1153 System.out.println("performTraversals"); 1154 host.debug(); 1155 } 1156 1157 if (host == null || !mAdded) 1158 return; 1159 1160 mIsInTraversal = true; 1161 mWillDrawSoon = true; 1162 boolean windowSizeMayChange = false; 1163 boolean newSurface = false; 1164 boolean surfaceChanged = false; 1165 WindowManager.LayoutParams lp = mWindowAttributes; 1166 1167 int desiredWindowWidth; 1168 int desiredWindowHeight; 1169 1170 final View.AttachInfo attachInfo = mAttachInfo; 1171 1172 final int viewVisibility = getHostVisibility(); 1173 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1174 || mNewSurfaceNeeded; 1175 1176 WindowManager.LayoutParams params = null; 1177 if (mWindowAttributesChanged) { 1178 mWindowAttributesChanged = false; 1179 surfaceChanged = true; 1180 params = lp; 1181 } 1182 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1183 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1184 params = lp; 1185 mFullRedrawNeeded = true; 1186 mLayoutRequested = true; 1187 if (mLastInCompatMode) { 1188 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1189 mLastInCompatMode = false; 1190 } else { 1191 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1192 mLastInCompatMode = true; 1193 } 1194 } 1195 1196 mWindowAttributesChangesFlag = 0; 1197 1198 Rect frame = mWinFrame; 1199 if (mFirst) { 1200 mFullRedrawNeeded = true; 1201 mLayoutRequested = true; 1202 1203 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1204 // NOTE -- system code, won't try to do compat mode. 1205 Point size = new Point(); 1206 mDisplay.getRealSize(size); 1207 desiredWindowWidth = size.x; 1208 desiredWindowHeight = size.y; 1209 } else { 1210 DisplayMetrics packageMetrics = 1211 mView.getContext().getResources().getDisplayMetrics(); 1212 desiredWindowWidth = packageMetrics.widthPixels; 1213 desiredWindowHeight = packageMetrics.heightPixels; 1214 } 1215 1216 // For the very first time, tell the view hierarchy that it 1217 // is attached to the window. Note that at this point the surface 1218 // object is not initialized to its backing store, but soon it 1219 // will be (assuming the window is visible). 1220 attachInfo.mSurface = mSurface; 1221 // We used to use the following condition to choose 32 bits drawing caches: 1222 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1223 // However, windows are now always 32 bits by default, so choose 32 bits 1224 attachInfo.mUse32BitDrawingCache = true; 1225 attachInfo.mHasWindowFocus = false; 1226 attachInfo.mWindowVisibility = viewVisibility; 1227 attachInfo.mRecomputeGlobalAttributes = false; 1228 viewVisibilityChanged = false; 1229 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1230 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1231 // Set the layout direction if it has not been set before (inherit is the default) 1232 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1233 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1234 } 1235 host.dispatchAttachedToWindow(attachInfo, 0); 1236 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1237 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1238 host.fitSystemWindows(mFitSystemWindowsInsets); 1239 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1240 1241 } else { 1242 desiredWindowWidth = frame.width(); 1243 desiredWindowHeight = frame.height(); 1244 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1245 if (DEBUG_ORIENTATION) Log.v(TAG, 1246 "View " + host + " resized to: " + frame); 1247 mFullRedrawNeeded = true; 1248 mLayoutRequested = true; 1249 windowSizeMayChange = true; 1250 } 1251 } 1252 1253 if (viewVisibilityChanged) { 1254 attachInfo.mWindowVisibility = viewVisibility; 1255 host.dispatchWindowVisibilityChanged(viewVisibility); 1256 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1257 destroyHardwareResources(); 1258 } 1259 if (viewVisibility == View.GONE) { 1260 // After making a window gone, we will count it as being 1261 // shown for the first time the next time it gets focus. 1262 mHasHadWindowFocus = false; 1263 } 1264 } 1265 1266 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1267 getRunQueue().executeActions(attachInfo.mHandler); 1268 1269 boolean insetsChanged = false; 1270 1271 boolean layoutRequested = mLayoutRequested && !mStopped; 1272 if (layoutRequested) { 1273 1274 final Resources res = mView.getContext().getResources(); 1275 1276 if (mFirst) { 1277 // make sure touch mode code executes by setting cached value 1278 // to opposite of the added touch mode. 1279 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1280 ensureTouchModeLocally(mAddedTouchMode); 1281 } else { 1282 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1283 insetsChanged = true; 1284 } 1285 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1286 insetsChanged = true; 1287 } 1288 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1289 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1290 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1291 + mAttachInfo.mVisibleInsets); 1292 } 1293 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1294 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1295 windowSizeMayChange = true; 1296 1297 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1298 // NOTE -- system code, won't try to do compat mode. 1299 Point size = new Point(); 1300 mDisplay.getRealSize(size); 1301 desiredWindowWidth = size.x; 1302 desiredWindowHeight = size.y; 1303 } else { 1304 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1305 desiredWindowWidth = packageMetrics.widthPixels; 1306 desiredWindowHeight = packageMetrics.heightPixels; 1307 } 1308 } 1309 } 1310 1311 // Ask host how big it wants to be 1312 windowSizeMayChange |= measureHierarchy(host, lp, res, 1313 desiredWindowWidth, desiredWindowHeight); 1314 } 1315 1316 if (collectViewAttributes()) { 1317 params = lp; 1318 } 1319 if (attachInfo.mForceReportNewAttributes) { 1320 attachInfo.mForceReportNewAttributes = false; 1321 params = lp; 1322 } 1323 1324 if (mFirst || attachInfo.mViewVisibilityChanged) { 1325 attachInfo.mViewVisibilityChanged = false; 1326 int resizeMode = mSoftInputMode & 1327 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1328 // If we are in auto resize mode, then we need to determine 1329 // what mode to use now. 1330 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1331 final int N = attachInfo.mScrollContainers.size(); 1332 for (int i=0; i<N; i++) { 1333 if (attachInfo.mScrollContainers.get(i).isShown()) { 1334 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1335 } 1336 } 1337 if (resizeMode == 0) { 1338 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1339 } 1340 if ((lp.softInputMode & 1341 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1342 lp.softInputMode = (lp.softInputMode & 1343 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1344 resizeMode; 1345 params = lp; 1346 } 1347 } 1348 } 1349 1350 if (params != null) { 1351 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1352 if (!PixelFormat.formatHasAlpha(params.format)) { 1353 params.format = PixelFormat.TRANSLUCENT; 1354 } 1355 } 1356 mAttachInfo.mOverscanRequested = (params.flags 1357 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1358 } 1359 1360 if (mFitSystemWindowsRequested) { 1361 mFitSystemWindowsRequested = false; 1362 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1363 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1364 host.fitSystemWindows(mFitSystemWindowsInsets); 1365 if (mLayoutRequested) { 1366 // Short-circuit catching a new layout request here, so 1367 // we don't need to go through two layout passes when things 1368 // change due to fitting system windows, which can happen a lot. 1369 windowSizeMayChange |= measureHierarchy(host, lp, 1370 mView.getContext().getResources(), 1371 desiredWindowWidth, desiredWindowHeight); 1372 } 1373 } 1374 1375 if (layoutRequested) { 1376 // Clear this now, so that if anything requests a layout in the 1377 // rest of this function we will catch it and re-run a full 1378 // layout pass. 1379 mLayoutRequested = false; 1380 } 1381 1382 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1383 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1384 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1385 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1386 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1387 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1388 1389 final boolean computesInternalInsets = 1390 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1391 1392 boolean insetsPending = false; 1393 int relayoutResult = 0; 1394 1395 if (mFirst || windowShouldResize || insetsChanged || 1396 viewVisibilityChanged || params != null) { 1397 1398 if (viewVisibility == View.VISIBLE) { 1399 // If this window is giving internal insets to the window 1400 // manager, and it is being added or changing its visibility, 1401 // then we want to first give the window manager "fake" 1402 // insets to cause it to effectively ignore the content of 1403 // the window during layout. This avoids it briefly causing 1404 // other windows to resize/move based on the raw frame of the 1405 // window, waiting until we can finish laying out this window 1406 // and get back to the window manager with the ultimately 1407 // computed insets. 1408 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1409 } 1410 1411 if (mSurfaceHolder != null) { 1412 mSurfaceHolder.mSurfaceLock.lock(); 1413 mDrawingAllowed = true; 1414 } 1415 1416 boolean hwInitialized = false; 1417 boolean contentInsetsChanged = false; 1418 boolean hadSurface = mSurface.isValid(); 1419 1420 try { 1421 if (DEBUG_LAYOUT) { 1422 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1423 host.getMeasuredHeight() + ", params=" + params); 1424 } 1425 1426 final int surfaceGenerationId = mSurface.getGenerationId(); 1427 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1428 mWindowsAnimating |= 1429 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0; 1430 1431 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1432 + " overscan=" + mPendingOverscanInsets.toShortString() 1433 + " content=" + mPendingContentInsets.toShortString() 1434 + " visible=" + mPendingVisibleInsets.toShortString() 1435 + " surface=" + mSurface); 1436 1437 if (mPendingConfiguration.seq != 0) { 1438 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1439 + mPendingConfiguration); 1440 updateConfiguration(mPendingConfiguration, !mFirst); 1441 mPendingConfiguration.seq = 0; 1442 } 1443 1444 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1445 mAttachInfo.mOverscanInsets); 1446 contentInsetsChanged = !mPendingContentInsets.equals( 1447 mAttachInfo.mContentInsets); 1448 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1449 mAttachInfo.mVisibleInsets); 1450 if (contentInsetsChanged) { 1451 if (mWidth > 0 && mHeight > 0 && lp != null && 1452 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1453 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1454 mSurface != null && mSurface.isValid() && 1455 !mAttachInfo.mTurnOffWindowResizeAnim && 1456 mAttachInfo.mHardwareRenderer != null && 1457 mAttachInfo.mHardwareRenderer.isEnabled() && 1458 mAttachInfo.mHardwareRenderer.validate() && 1459 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1460 1461 disposeResizeBuffer(); 1462 1463 boolean completed = false; 1464 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1465 HardwareCanvas layerCanvas = null; 1466 try { 1467 if (mResizeBuffer == null) { 1468 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1469 mWidth, mHeight, false); 1470 } else if (mResizeBuffer.getWidth() != mWidth || 1471 mResizeBuffer.getHeight() != mHeight) { 1472 mResizeBuffer.resize(mWidth, mHeight); 1473 } 1474 // TODO: should handle create/resize failure 1475 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1476 final int restoreCount = layerCanvas.save(); 1477 1478 int yoff; 1479 final boolean scrolling = mScroller != null 1480 && mScroller.computeScrollOffset(); 1481 if (scrolling) { 1482 yoff = mScroller.getCurrY(); 1483 mScroller.abortAnimation(); 1484 } else { 1485 yoff = mScrollY; 1486 } 1487 1488 layerCanvas.translate(0, -yoff); 1489 if (mTranslator != null) { 1490 mTranslator.translateCanvas(layerCanvas); 1491 } 1492 1493 DisplayList displayList = mView.mDisplayList; 1494 if (displayList != null) { 1495 layerCanvas.drawDisplayList(displayList, null, 1496 DisplayList.FLAG_CLIP_CHILDREN); 1497 } else { 1498 mView.draw(layerCanvas); 1499 } 1500 1501 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1502 1503 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1504 mResizeBufferDuration = mView.getResources().getInteger( 1505 com.android.internal.R.integer.config_mediumAnimTime); 1506 completed = true; 1507 1508 layerCanvas.restoreToCount(restoreCount); 1509 } catch (OutOfMemoryError e) { 1510 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1511 } finally { 1512 if (mResizeBuffer != null) { 1513 mResizeBuffer.end(hwRendererCanvas); 1514 if (!completed) { 1515 mResizeBuffer.destroy(); 1516 mResizeBuffer = null; 1517 } 1518 } 1519 } 1520 } 1521 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1522 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1523 + mAttachInfo.mContentInsets); 1524 } 1525 if (overscanInsetsChanged) { 1526 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1527 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1528 + mAttachInfo.mOverscanInsets); 1529 // Need to relayout with content insets. 1530 contentInsetsChanged = true; 1531 } 1532 if (contentInsetsChanged || mLastSystemUiVisibility != 1533 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1534 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1535 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1536 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1537 mFitSystemWindowsRequested = false; 1538 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1539 host.fitSystemWindows(mFitSystemWindowsInsets); 1540 } 1541 if (visibleInsetsChanged) { 1542 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1543 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1544 + mAttachInfo.mVisibleInsets); 1545 } 1546 1547 if (!hadSurface) { 1548 if (mSurface.isValid()) { 1549 // If we are creating a new surface, then we need to 1550 // completely redraw it. Also, when we get to the 1551 // point of drawing it we will hold off and schedule 1552 // a new traversal instead. This is so we can tell the 1553 // window manager about all of the windows being displayed 1554 // before actually drawing them, so it can display then 1555 // all at once. 1556 newSurface = true; 1557 mFullRedrawNeeded = true; 1558 mPreviousTransparentRegion.setEmpty(); 1559 1560 if (mAttachInfo.mHardwareRenderer != null) { 1561 try { 1562 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1563 mHolder.getSurface()); 1564 } catch (Surface.OutOfResourcesException e) { 1565 handleOutOfResourcesException(e); 1566 return; 1567 } 1568 } 1569 } 1570 } else if (!mSurface.isValid()) { 1571 // If the surface has been removed, then reset the scroll 1572 // positions. 1573 if (mLastScrolledFocus != null) { 1574 mLastScrolledFocus.clear(); 1575 } 1576 mScrollY = mCurScrollY = 0; 1577 if (mScroller != null) { 1578 mScroller.abortAnimation(); 1579 } 1580 disposeResizeBuffer(); 1581 // Our surface is gone 1582 if (mAttachInfo.mHardwareRenderer != null && 1583 mAttachInfo.mHardwareRenderer.isEnabled()) { 1584 mAttachInfo.mHardwareRenderer.destroy(true); 1585 } 1586 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1587 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1588 mFullRedrawNeeded = true; 1589 try { 1590 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1591 } catch (Surface.OutOfResourcesException e) { 1592 handleOutOfResourcesException(e); 1593 return; 1594 } 1595 } 1596 } catch (RemoteException e) { 1597 } 1598 1599 if (DEBUG_ORIENTATION) Log.v( 1600 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1601 1602 attachInfo.mWindowLeft = frame.left; 1603 attachInfo.mWindowTop = frame.top; 1604 1605 // !!FIXME!! This next section handles the case where we did not get the 1606 // window size we asked for. We should avoid this by getting a maximum size from 1607 // the window session beforehand. 1608 if (mWidth != frame.width() || mHeight != frame.height()) { 1609 mWidth = frame.width(); 1610 mHeight = frame.height(); 1611 } 1612 1613 if (mSurfaceHolder != null) { 1614 // The app owns the surface; tell it about what is going on. 1615 if (mSurface.isValid()) { 1616 // XXX .copyFrom() doesn't work! 1617 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1618 mSurfaceHolder.mSurface = mSurface; 1619 } 1620 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1621 mSurfaceHolder.mSurfaceLock.unlock(); 1622 if (mSurface.isValid()) { 1623 if (!hadSurface) { 1624 mSurfaceHolder.ungetCallbacks(); 1625 1626 mIsCreating = true; 1627 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1628 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1629 if (callbacks != null) { 1630 for (SurfaceHolder.Callback c : callbacks) { 1631 c.surfaceCreated(mSurfaceHolder); 1632 } 1633 } 1634 surfaceChanged = true; 1635 } 1636 if (surfaceChanged) { 1637 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1638 lp.format, mWidth, mHeight); 1639 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1640 if (callbacks != null) { 1641 for (SurfaceHolder.Callback c : callbacks) { 1642 c.surfaceChanged(mSurfaceHolder, lp.format, 1643 mWidth, mHeight); 1644 } 1645 } 1646 } 1647 mIsCreating = false; 1648 } else if (hadSurface) { 1649 mSurfaceHolder.ungetCallbacks(); 1650 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1651 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1652 if (callbacks != null) { 1653 for (SurfaceHolder.Callback c : callbacks) { 1654 c.surfaceDestroyed(mSurfaceHolder); 1655 } 1656 } 1657 mSurfaceHolder.mSurfaceLock.lock(); 1658 try { 1659 mSurfaceHolder.mSurface = new Surface(); 1660 } finally { 1661 mSurfaceHolder.mSurfaceLock.unlock(); 1662 } 1663 } 1664 } 1665 1666 if (mAttachInfo.mHardwareRenderer != null && 1667 mAttachInfo.mHardwareRenderer.isEnabled()) { 1668 if (hwInitialized || windowShouldResize || 1669 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1670 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1671 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1672 if (!hwInitialized) { 1673 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1674 mFullRedrawNeeded = true; 1675 } 1676 } 1677 } 1678 1679 if (!mStopped) { 1680 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1681 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1682 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1683 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1684 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1685 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1686 1687 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1688 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1689 + " mHeight=" + mHeight 1690 + " measuredHeight=" + host.getMeasuredHeight() 1691 + " coveredInsetsChanged=" + contentInsetsChanged); 1692 1693 // Ask host how big it wants to be 1694 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1695 1696 // Implementation of weights from WindowManager.LayoutParams 1697 // We just grow the dimensions as needed and re-measure if 1698 // needs be 1699 int width = host.getMeasuredWidth(); 1700 int height = host.getMeasuredHeight(); 1701 boolean measureAgain = false; 1702 1703 if (lp.horizontalWeight > 0.0f) { 1704 width += (int) ((mWidth - width) * lp.horizontalWeight); 1705 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1706 MeasureSpec.EXACTLY); 1707 measureAgain = true; 1708 } 1709 if (lp.verticalWeight > 0.0f) { 1710 height += (int) ((mHeight - height) * lp.verticalWeight); 1711 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1712 MeasureSpec.EXACTLY); 1713 measureAgain = true; 1714 } 1715 1716 if (measureAgain) { 1717 if (DEBUG_LAYOUT) Log.v(TAG, 1718 "And hey let's measure once more: width=" + width 1719 + " height=" + height); 1720 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1721 } 1722 1723 layoutRequested = true; 1724 } 1725 } 1726 } else { 1727 // Not the first pass and no window/insets/visibility change but the window 1728 // may have moved and we need check that and if so to update the left and right 1729 // in the attach info. We translate only the window frame since on window move 1730 // the window manager tells us only for the new frame but the insets are the 1731 // same and we do not want to translate them more than once. 1732 1733 // TODO: Well, we are checking whether the frame has changed similarly 1734 // to how this is done for the insets. This is however incorrect since 1735 // the insets and the frame are translated. For example, the old frame 1736 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1737 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1738 // true since we are comparing a not translated value to a translated one. 1739 // This scenario is rare but we may want to fix that. 1740 1741 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1742 || attachInfo.mWindowTop != frame.top); 1743 if (windowMoved) { 1744 if (mTranslator != null) { 1745 mTranslator.translateRectInScreenToAppWinFrame(frame); 1746 } 1747 attachInfo.mWindowLeft = frame.left; 1748 attachInfo.mWindowTop = frame.top; 1749 } 1750 } 1751 1752 final boolean didLayout = layoutRequested && !mStopped; 1753 boolean triggerGlobalLayoutListener = didLayout 1754 || attachInfo.mRecomputeGlobalAttributes; 1755 if (didLayout) { 1756 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1757 1758 // By this point all views have been sized and positionned 1759 // We can compute the transparent area 1760 1761 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1762 // start out transparent 1763 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1764 host.getLocationInWindow(mTmpLocation); 1765 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1766 mTmpLocation[0] + host.mRight - host.mLeft, 1767 mTmpLocation[1] + host.mBottom - host.mTop); 1768 1769 host.gatherTransparentRegion(mTransparentRegion); 1770 if (mTranslator != null) { 1771 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1772 } 1773 1774 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1775 mPreviousTransparentRegion.set(mTransparentRegion); 1776 // reconfigure window manager 1777 try { 1778 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1779 } catch (RemoteException e) { 1780 } 1781 } 1782 } 1783 1784 if (DBG) { 1785 System.out.println("======================================"); 1786 System.out.println("performTraversals -- after setFrame"); 1787 host.debug(); 1788 } 1789 } 1790 1791 if (triggerGlobalLayoutListener) { 1792 attachInfo.mRecomputeGlobalAttributes = false; 1793 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1794 1795 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1796 postSendWindowContentChangedCallback(mView); 1797 } 1798 } 1799 1800 if (computesInternalInsets) { 1801 // Clear the original insets. 1802 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1803 insets.reset(); 1804 1805 // Compute new insets in place. 1806 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1807 1808 // Tell the window manager. 1809 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1810 mLastGivenInsets.set(insets); 1811 1812 // Translate insets to screen coordinates if needed. 1813 final Rect contentInsets; 1814 final Rect visibleInsets; 1815 final Region touchableRegion; 1816 if (mTranslator != null) { 1817 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1818 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1819 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1820 } else { 1821 contentInsets = insets.contentInsets; 1822 visibleInsets = insets.visibleInsets; 1823 touchableRegion = insets.touchableRegion; 1824 } 1825 1826 try { 1827 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1828 contentInsets, visibleInsets, touchableRegion); 1829 } catch (RemoteException e) { 1830 } 1831 } 1832 } 1833 1834 boolean skipDraw = false; 1835 1836 if (mFirst) { 1837 // handle first focus request 1838 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1839 + mView.hasFocus()); 1840 if (mView != null) { 1841 if (!mView.hasFocus()) { 1842 mView.requestFocus(View.FOCUS_FORWARD); 1843 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1844 + mView.findFocus()); 1845 } else { 1846 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1847 + mView.findFocus()); 1848 } 1849 } 1850 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1851 // The first time we relayout the window, if the system is 1852 // doing window animations, we want to hold of on any future 1853 // draws until the animation is done. 1854 mWindowsAnimating = true; 1855 } 1856 } else if (mWindowsAnimating) { 1857 skipDraw = true; 1858 } 1859 1860 mFirst = false; 1861 mWillDrawSoon = false; 1862 mNewSurfaceNeeded = false; 1863 mViewVisibility = viewVisibility; 1864 1865 if (mAttachInfo.mHasWindowFocus) { 1866 final boolean imTarget = WindowManager.LayoutParams 1867 .mayUseInputMethod(mWindowAttributes.flags); 1868 if (imTarget != mLastWasImTarget) { 1869 mLastWasImTarget = imTarget; 1870 InputMethodManager imm = InputMethodManager.peekInstance(); 1871 if (imm != null && imTarget) { 1872 imm.startGettingWindowFocus(mView); 1873 imm.onWindowFocus(mView, mView.findFocus(), 1874 mWindowAttributes.softInputMode, 1875 !mHasHadWindowFocus, mWindowAttributes.flags); 1876 } 1877 } 1878 } 1879 1880 // Remember if we must report the next draw. 1881 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1882 mReportNextDraw = true; 1883 } 1884 1885 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1886 viewVisibility != View.VISIBLE; 1887 1888 if (!cancelDraw && !newSurface) { 1889 if (!skipDraw || mReportNextDraw) { 1890 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1891 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1892 mPendingTransitions.get(i).startChangingAnimations(); 1893 } 1894 mPendingTransitions.clear(); 1895 } 1896 1897 performDraw(); 1898 } 1899 } else { 1900 if (viewVisibility == View.VISIBLE) { 1901 // Try again 1902 scheduleTraversals(); 1903 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1904 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1905 mPendingTransitions.get(i).endChangingAnimations(); 1906 } 1907 mPendingTransitions.clear(); 1908 } 1909 } 1910 1911 mIsInTraversal = false; 1912 } 1913 1914 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1915 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1916 try { 1917 if (!mWindowSession.outOfMemory(mWindow) && 1918 Process.myUid() != Process.SYSTEM_UID) { 1919 Slog.w(TAG, "No processes killed for memory; killing self"); 1920 Process.killProcess(Process.myPid()); 1921 } 1922 } catch (RemoteException ex) { 1923 } 1924 mLayoutRequested = true; // ask wm for a new surface next time. 1925 } 1926 1927 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1928 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1929 try { 1930 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1931 } finally { 1932 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1933 } 1934 } 1935 1936 /** 1937 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1938 * is currently undergoing a layout pass. 1939 * 1940 * @return whether the view hierarchy is currently undergoing a layout pass 1941 */ 1942 boolean isInLayout() { 1943 return mInLayout; 1944 } 1945 1946 /** 1947 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1948 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1949 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1950 * all children in that container hierarchy are measured and laid out at the end of the layout 1951 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1952 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1953 * we check all of those views to see if any still have pending layout requests, which 1954 * indicates that they were not correctly handled by their container hierarchy. If that is 1955 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1956 * to blank containers, and force a second request/measure/layout pass in this frame. If 1957 * more requestLayout() calls are received during that second layout pass, we post those 1958 * requests to the next frame to avoid possible infinite loops. 1959 * 1960 * <p>The return value from this method indicates whether the request should proceed 1961 * (if it is a request during the first layout pass) or should be skipped and posted to the 1962 * next frame (if it is a request during the second layout pass).</p> 1963 * 1964 * @param view the view that requested the layout. 1965 * 1966 * @return true if request should proceed, false otherwise. 1967 */ 1968 boolean requestLayoutDuringLayout(final View view) { 1969 if (view.mParent == null || view.mAttachInfo == null) { 1970 // Would not normally trigger another layout, so just let it pass through as usual 1971 return true; 1972 } 1973 if (!mLayoutRequesters.contains(view)) { 1974 mLayoutRequesters.add(view); 1975 } 1976 if (!mHandlingLayoutInLayoutRequest) { 1977 // Let the request proceed normally; it will be processed in a second layout pass 1978 // if necessary 1979 return true; 1980 } else { 1981 // Don't let the request proceed during the second layout pass. 1982 // It will post to the next frame instead. 1983 return false; 1984 } 1985 } 1986 1987 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1988 int desiredWindowHeight) { 1989 mLayoutRequested = false; 1990 mScrollMayChange = true; 1991 mInLayout = true; 1992 1993 final View host = mView; 1994 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1995 Log.v(TAG, "Laying out " + host + " to (" + 1996 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1997 } 1998 1999 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2000 try { 2001 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2002 2003 mInLayout = false; 2004 int numViewsRequestingLayout = mLayoutRequesters.size(); 2005 if (numViewsRequestingLayout > 0) { 2006 // requestLayout() was called during layout. 2007 // If no layout-request flags are set on the requesting views, there is no problem. 2008 // If some requests are still pending, then we need to clear those flags and do 2009 // a full request/measure/layout pass to handle this situation. 2010 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2011 false); 2012 if (validLayoutRequesters != null) { 2013 // Set this flag to indicate that any further requests are happening during 2014 // the second pass, which may result in posting those requests to the next 2015 // frame instead 2016 mHandlingLayoutInLayoutRequest = true; 2017 2018 // Process fresh layout requests, then measure and layout 2019 int numValidRequests = validLayoutRequesters.size(); 2020 for (int i = 0; i < numValidRequests; ++i) { 2021 final View view = validLayoutRequesters.get(i); 2022 Log.w("View", "requestLayout() improperly called by " + view + 2023 " during layout: running second layout pass"); 2024 view.requestLayout(); 2025 } 2026 measureHierarchy(host, lp, mView.getContext().getResources(), 2027 desiredWindowWidth, desiredWindowHeight); 2028 mInLayout = true; 2029 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2030 2031 mHandlingLayoutInLayoutRequest = false; 2032 2033 // Check the valid requests again, this time without checking/clearing the 2034 // layout flags, since requests happening during the second pass get noop'd 2035 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2036 if (validLayoutRequesters != null) { 2037 final ArrayList<View> finalRequesters = validLayoutRequesters; 2038 // Post second-pass requests to the next frame 2039 getRunQueue().post(new Runnable() { 2040 @Override 2041 public void run() { 2042 int numValidRequests = finalRequesters.size(); 2043 for (int i = 0; i < numValidRequests; ++i) { 2044 final View view = finalRequesters.get(i); 2045 Log.w("View", "requestLayout() improperly called by " + view + 2046 " during second layout pass: posting in next frame"); 2047 view.requestLayout(); 2048 } 2049 } 2050 }); 2051 } 2052 } 2053 2054 } 2055 } finally { 2056 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2057 } 2058 mInLayout = false; 2059 } 2060 2061 /** 2062 * This method is called during layout when there have been calls to requestLayout() during 2063 * layout. It walks through the list of views that requested layout to determine which ones 2064 * still need it, based on visibility in the hierarchy and whether they have already been 2065 * handled (as is usually the case with ListView children). 2066 * 2067 * @param layoutRequesters The list of views that requested layout during layout 2068 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2069 * If so, the FORCE_LAYOUT flag was not set on requesters. 2070 * @return A list of the actual views that still need to be laid out. 2071 */ 2072 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2073 boolean secondLayoutRequests) { 2074 2075 int numViewsRequestingLayout = layoutRequesters.size(); 2076 ArrayList<View> validLayoutRequesters = null; 2077 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2078 View view = layoutRequesters.get(i); 2079 if (view != null && view.mAttachInfo != null && view.mParent != null && 2080 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2081 View.PFLAG_FORCE_LAYOUT)) { 2082 boolean gone = false; 2083 View parent = view; 2084 // Only trigger new requests for views in a non-GONE hierarchy 2085 while (parent != null) { 2086 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2087 gone = true; 2088 break; 2089 } 2090 if (parent.mParent instanceof View) { 2091 parent = (View) parent.mParent; 2092 } else { 2093 parent = null; 2094 } 2095 } 2096 if (!gone) { 2097 if (validLayoutRequesters == null) { 2098 validLayoutRequesters = new ArrayList<View>(); 2099 } 2100 validLayoutRequesters.add(view); 2101 } 2102 } 2103 } 2104 if (!secondLayoutRequests) { 2105 // If we're checking the layout flags, then we need to clean them up also 2106 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2107 View view = layoutRequesters.get(i); 2108 while (view != null && 2109 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2110 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2111 if (view.mParent instanceof View) { 2112 view = (View) view.mParent; 2113 } else { 2114 view = null; 2115 } 2116 } 2117 } 2118 } 2119 layoutRequesters.clear(); 2120 return validLayoutRequesters; 2121 } 2122 2123 public void requestTransparentRegion(View child) { 2124 // the test below should not fail unless someone is messing with us 2125 checkThread(); 2126 if (mView == child) { 2127 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2128 // Need to make sure we re-evaluate the window attributes next 2129 // time around, to ensure the window has the correct format. 2130 mWindowAttributesChanged = true; 2131 mWindowAttributesChangesFlag = 0; 2132 requestLayout(); 2133 } 2134 } 2135 2136 /** 2137 * Figures out the measure spec for the root view in a window based on it's 2138 * layout params. 2139 * 2140 * @param windowSize 2141 * The available width or height of the window 2142 * 2143 * @param rootDimension 2144 * The layout params for one dimension (width or height) of the 2145 * window. 2146 * 2147 * @return The measure spec to use to measure the root view. 2148 */ 2149 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2150 int measureSpec; 2151 switch (rootDimension) { 2152 2153 case ViewGroup.LayoutParams.MATCH_PARENT: 2154 // Window can't resize. Force root view to be windowSize. 2155 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2156 break; 2157 case ViewGroup.LayoutParams.WRAP_CONTENT: 2158 // Window can resize. Set max size for root view. 2159 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2160 break; 2161 default: 2162 // Window wants to be an exact size. Force root view to be that size. 2163 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2164 break; 2165 } 2166 return measureSpec; 2167 } 2168 2169 int mHardwareYOffset; 2170 int mResizeAlpha; 2171 final Paint mResizePaint = new Paint(); 2172 2173 public void onHardwarePreDraw(HardwareCanvas canvas) { 2174 canvas.translate(0, -mHardwareYOffset); 2175 } 2176 2177 public void onHardwarePostDraw(HardwareCanvas canvas) { 2178 if (mResizeBuffer != null) { 2179 mResizePaint.setAlpha(mResizeAlpha); 2180 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2181 } 2182 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2183 } 2184 2185 /** 2186 * @hide 2187 */ 2188 void outputDisplayList(View view) { 2189 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2190 DisplayList displayList = view.getDisplayList(); 2191 if (displayList != null) { 2192 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2193 } 2194 } 2195 } 2196 2197 /** 2198 * @see #PROPERTY_PROFILE_RENDERING 2199 */ 2200 private void profileRendering(boolean enabled) { 2201 if (mProfileRendering) { 2202 mRenderProfilingEnabled = enabled; 2203 2204 if (mRenderProfiler != null) { 2205 mChoreographer.removeFrameCallback(mRenderProfiler); 2206 } 2207 if (mRenderProfilingEnabled) { 2208 if (mRenderProfiler == null) { 2209 mRenderProfiler = new Choreographer.FrameCallback() { 2210 @Override 2211 public void doFrame(long frameTimeNanos) { 2212 mDirty.set(0, 0, mWidth, mHeight); 2213 scheduleTraversals(); 2214 if (mRenderProfilingEnabled) { 2215 mChoreographer.postFrameCallback(mRenderProfiler); 2216 } 2217 } 2218 }; 2219 } 2220 mChoreographer.postFrameCallback(mRenderProfiler); 2221 } else { 2222 mRenderProfiler = null; 2223 } 2224 } 2225 } 2226 2227 /** 2228 * Called from draw() when DEBUG_FPS is enabled 2229 */ 2230 private void trackFPS() { 2231 // Tracks frames per second drawn. First value in a series of draws may be bogus 2232 // because it down not account for the intervening idle time 2233 long nowTime = System.currentTimeMillis(); 2234 if (mFpsStartTime < 0) { 2235 mFpsStartTime = mFpsPrevTime = nowTime; 2236 mFpsNumFrames = 0; 2237 } else { 2238 ++mFpsNumFrames; 2239 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2240 long frameTime = nowTime - mFpsPrevTime; 2241 long totalTime = nowTime - mFpsStartTime; 2242 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2243 mFpsPrevTime = nowTime; 2244 if (totalTime > 1000) { 2245 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2246 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2247 mFpsStartTime = nowTime; 2248 mFpsNumFrames = 0; 2249 } 2250 } 2251 } 2252 2253 private void performDraw() { 2254 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2255 return; 2256 } 2257 2258 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2259 mFullRedrawNeeded = false; 2260 2261 mIsDrawing = true; 2262 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2263 try { 2264 draw(fullRedrawNeeded); 2265 } finally { 2266 mIsDrawing = false; 2267 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2268 } 2269 2270 if (mReportNextDraw) { 2271 mReportNextDraw = false; 2272 2273 if (LOCAL_LOGV) { 2274 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2275 } 2276 if (mSurfaceHolder != null && mSurface.isValid()) { 2277 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2278 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2279 if (callbacks != null) { 2280 for (SurfaceHolder.Callback c : callbacks) { 2281 if (c instanceof SurfaceHolder.Callback2) { 2282 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2283 mSurfaceHolder); 2284 } 2285 } 2286 } 2287 } 2288 try { 2289 mWindowSession.finishDrawing(mWindow); 2290 } catch (RemoteException e) { 2291 } 2292 } 2293 } 2294 2295 private void draw(boolean fullRedrawNeeded) { 2296 Surface surface = mSurface; 2297 if (!surface.isValid()) { 2298 return; 2299 } 2300 2301 if (DEBUG_FPS) { 2302 trackFPS(); 2303 } 2304 2305 if (!sFirstDrawComplete) { 2306 synchronized (sFirstDrawHandlers) { 2307 sFirstDrawComplete = true; 2308 final int count = sFirstDrawHandlers.size(); 2309 for (int i = 0; i< count; i++) { 2310 mHandler.post(sFirstDrawHandlers.get(i)); 2311 } 2312 } 2313 } 2314 2315 scrollToRectOrFocus(null, false); 2316 2317 final AttachInfo attachInfo = mAttachInfo; 2318 if (attachInfo.mViewScrollChanged) { 2319 attachInfo.mViewScrollChanged = false; 2320 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2321 } 2322 2323 int yoff; 2324 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2325 if (animating) { 2326 yoff = mScroller.getCurrY(); 2327 } else { 2328 yoff = mScrollY; 2329 } 2330 if (mCurScrollY != yoff) { 2331 mCurScrollY = yoff; 2332 fullRedrawNeeded = true; 2333 } 2334 2335 final float appScale = attachInfo.mApplicationScale; 2336 final boolean scalingRequired = attachInfo.mScalingRequired; 2337 2338 int resizeAlpha = 0; 2339 if (mResizeBuffer != null) { 2340 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2341 if (deltaTime < mResizeBufferDuration) { 2342 float amt = deltaTime/(float) mResizeBufferDuration; 2343 amt = mResizeInterpolator.getInterpolation(amt); 2344 animating = true; 2345 resizeAlpha = 255 - (int)(amt*255); 2346 } else { 2347 disposeResizeBuffer(); 2348 } 2349 } 2350 2351 final Rect dirty = mDirty; 2352 if (mSurfaceHolder != null) { 2353 // The app owns the surface, we won't draw. 2354 dirty.setEmpty(); 2355 if (animating) { 2356 if (mScroller != null) { 2357 mScroller.abortAnimation(); 2358 } 2359 disposeResizeBuffer(); 2360 } 2361 return; 2362 } 2363 2364 if (fullRedrawNeeded) { 2365 attachInfo.mIgnoreDirtyState = true; 2366 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2367 } 2368 2369 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2370 Log.v(TAG, "Draw " + mView + "/" 2371 + mWindowAttributes.getTitle() 2372 + ": dirty={" + dirty.left + "," + dirty.top 2373 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2374 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2375 appScale + ", width=" + mWidth + ", height=" + mHeight); 2376 } 2377 2378 invalidateDisplayLists(); 2379 2380 attachInfo.mTreeObserver.dispatchOnDraw(); 2381 2382 if (!dirty.isEmpty() || mIsAnimating) { 2383 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2384 // Draw with hardware renderer. 2385 mIsAnimating = false; 2386 mHardwareYOffset = yoff; 2387 mResizeAlpha = resizeAlpha; 2388 2389 mCurrentDirty.set(dirty); 2390 dirty.setEmpty(); 2391 2392 attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2393 animating ? null : mCurrentDirty); 2394 } else { 2395 // If we get here with a disabled & requested hardware renderer, something went 2396 // wrong (an invalidate posted right before we destroyed the hardware surface 2397 // for instance) so we should just bail out. Locking the surface with software 2398 // rendering at this point would lock it forever and prevent hardware renderer 2399 // from doing its job when it comes back. 2400 // Before we request a new frame we must however attempt to reinitiliaze the 2401 // hardware renderer if it's in requested state. This would happen after an 2402 // eglTerminate() for instance. 2403 if (attachInfo.mHardwareRenderer != null && 2404 !attachInfo.mHardwareRenderer.isEnabled() && 2405 attachInfo.mHardwareRenderer.isRequested()) { 2406 2407 try { 2408 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2409 mHolder.getSurface()); 2410 } catch (Surface.OutOfResourcesException e) { 2411 handleOutOfResourcesException(e); 2412 return; 2413 } 2414 2415 mFullRedrawNeeded = true; 2416 scheduleTraversals(); 2417 return; 2418 } 2419 2420 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2421 return; 2422 } 2423 } 2424 } 2425 2426 if (animating) { 2427 mFullRedrawNeeded = true; 2428 scheduleTraversals(); 2429 } 2430 } 2431 2432 /** 2433 * @return true if drawing was succesfull, false if an error occurred 2434 */ 2435 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2436 boolean scalingRequired, Rect dirty) { 2437 2438 // Draw with software renderer. 2439 Canvas canvas; 2440 try { 2441 int left = dirty.left; 2442 int top = dirty.top; 2443 int right = dirty.right; 2444 int bottom = dirty.bottom; 2445 2446 canvas = mSurface.lockCanvas(dirty); 2447 2448 // The dirty rectangle can be modified by Surface.lockCanvas() 2449 //noinspection ConstantConditions 2450 if (left != dirty.left || top != dirty.top || right != dirty.right || 2451 bottom != dirty.bottom) { 2452 attachInfo.mIgnoreDirtyState = true; 2453 } 2454 2455 // TODO: Do this in native 2456 canvas.setDensity(mDensity); 2457 } catch (Surface.OutOfResourcesException e) { 2458 handleOutOfResourcesException(e); 2459 return false; 2460 } catch (IllegalArgumentException e) { 2461 Log.e(TAG, "Could not lock surface", e); 2462 // Don't assume this is due to out of memory, it could be 2463 // something else, and if it is something else then we could 2464 // kill stuff (or ourself) for no reason. 2465 mLayoutRequested = true; // ask wm for a new surface next time. 2466 return false; 2467 } 2468 2469 try { 2470 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2471 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2472 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2473 //canvas.drawARGB(255, 255, 0, 0); 2474 } 2475 2476 // If this bitmap's format includes an alpha channel, we 2477 // need to clear it before drawing so that the child will 2478 // properly re-composite its drawing on a transparent 2479 // background. This automatically respects the clip/dirty region 2480 // or 2481 // If we are applying an offset, we need to clear the area 2482 // where the offset doesn't appear to avoid having garbage 2483 // left in the blank areas. 2484 if (!canvas.isOpaque() || yoff != 0) { 2485 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2486 } 2487 2488 dirty.setEmpty(); 2489 mIsAnimating = false; 2490 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2491 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2492 2493 if (DEBUG_DRAW) { 2494 Context cxt = mView.getContext(); 2495 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2496 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2497 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2498 } 2499 try { 2500 canvas.translate(0, -yoff); 2501 if (mTranslator != null) { 2502 mTranslator.translateCanvas(canvas); 2503 } 2504 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2505 attachInfo.mSetIgnoreDirtyState = false; 2506 2507 mView.draw(canvas); 2508 2509 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2510 } finally { 2511 if (!attachInfo.mSetIgnoreDirtyState) { 2512 // Only clear the flag if it was not set during the mView.draw() call 2513 attachInfo.mIgnoreDirtyState = false; 2514 } 2515 } 2516 } finally { 2517 try { 2518 surface.unlockCanvasAndPost(canvas); 2519 } catch (IllegalArgumentException e) { 2520 Log.e(TAG, "Could not unlock surface", e); 2521 mLayoutRequested = true; // ask wm for a new surface next time. 2522 //noinspection ReturnInsideFinallyBlock 2523 return false; 2524 } 2525 2526 if (LOCAL_LOGV) { 2527 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2528 } 2529 } 2530 return true; 2531 } 2532 2533 /** 2534 * We want to draw a highlight around the current accessibility focused. 2535 * Since adding a style for all possible view is not a viable option we 2536 * have this specialized drawing method. 2537 * 2538 * Note: We are doing this here to be able to draw the highlight for 2539 * virtual views in addition to real ones. 2540 * 2541 * @param canvas The canvas on which to draw. 2542 */ 2543 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2544 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2545 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2546 return; 2547 } 2548 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2549 return; 2550 } 2551 Drawable drawable = getAccessibilityFocusedDrawable(); 2552 if (drawable == null) { 2553 return; 2554 } 2555 AccessibilityNodeProvider provider = 2556 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2557 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2558 if (provider == null) { 2559 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2560 } else { 2561 if (mAccessibilityFocusedVirtualView == null) { 2562 return; 2563 } 2564 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2565 } 2566 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2567 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2568 drawable.setBounds(bounds); 2569 drawable.draw(canvas); 2570 } 2571 2572 private Drawable getAccessibilityFocusedDrawable() { 2573 if (mAttachInfo != null) { 2574 // Lazily load the accessibility focus drawable. 2575 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2576 TypedValue value = new TypedValue(); 2577 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2578 R.attr.accessibilityFocusedDrawable, value, true); 2579 if (resolved) { 2580 mAttachInfo.mAccessibilityFocusDrawable = 2581 mView.mContext.getResources().getDrawable(value.resourceId); 2582 } 2583 } 2584 return mAttachInfo.mAccessibilityFocusDrawable; 2585 } 2586 return null; 2587 } 2588 2589 void invalidateDisplayLists() { 2590 final ArrayList<DisplayList> displayLists = mDisplayLists; 2591 final int count = displayLists.size(); 2592 2593 for (int i = 0; i < count; i++) { 2594 final DisplayList displayList = displayLists.get(i); 2595 if (displayList.isDirty()) { 2596 displayList.clear(); 2597 } 2598 } 2599 2600 displayLists.clear(); 2601 } 2602 2603 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2604 final View.AttachInfo attachInfo = mAttachInfo; 2605 final Rect ci = attachInfo.mContentInsets; 2606 final Rect vi = attachInfo.mVisibleInsets; 2607 int scrollY = 0; 2608 boolean handled = false; 2609 2610 if (vi.left > ci.left || vi.top > ci.top 2611 || vi.right > ci.right || vi.bottom > ci.bottom) { 2612 // We'll assume that we aren't going to change the scroll 2613 // offset, since we want to avoid that unless it is actually 2614 // going to make the focus visible... otherwise we scroll 2615 // all over the place. 2616 scrollY = mScrollY; 2617 // We can be called for two different situations: during a draw, 2618 // to update the scroll position if the focus has changed (in which 2619 // case 'rectangle' is null), or in response to a 2620 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2621 // is non-null and we just want to scroll to whatever that 2622 // rectangle is). 2623 View focus = mView.findFocus(); 2624 if (focus == null) { 2625 return false; 2626 } 2627 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2628 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2629 // If the focus has changed, then ignore any requests to scroll 2630 // to a rectangle; first we want to make sure the entire focus 2631 // view is visible. 2632 rectangle = null; 2633 } 2634 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2635 + " rectangle=" + rectangle + " ci=" + ci 2636 + " vi=" + vi); 2637 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2638 // Optimization: if the focus hasn't changed since last 2639 // time, and no layout has happened, then just leave things 2640 // as they are. 2641 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2642 + mScrollY + " vi=" + vi.toShortString()); 2643 } else if (focus != null) { 2644 // We need to determine if the currently focused view is 2645 // within the visible part of the window and, if not, apply 2646 // a pan so it can be seen. 2647 mLastScrolledFocus = new WeakReference<View>(focus); 2648 mScrollMayChange = false; 2649 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2650 // Try to find the rectangle from the focus view. 2651 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2652 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2653 + mView.getWidth() + " h=" + mView.getHeight() 2654 + " ci=" + ci.toShortString() 2655 + " vi=" + vi.toShortString()); 2656 if (rectangle == null) { 2657 focus.getFocusedRect(mTempRect); 2658 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2659 + ": focusRect=" + mTempRect.toShortString()); 2660 if (mView instanceof ViewGroup) { 2661 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2662 focus, mTempRect); 2663 } 2664 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2665 "Focus in window: focusRect=" 2666 + mTempRect.toShortString() 2667 + " visRect=" + mVisRect.toShortString()); 2668 } else { 2669 mTempRect.set(rectangle); 2670 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2671 "Request scroll to rect: " 2672 + mTempRect.toShortString() 2673 + " visRect=" + mVisRect.toShortString()); 2674 } 2675 if (mTempRect.intersect(mVisRect)) { 2676 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2677 "Focus window visible rect: " 2678 + mTempRect.toShortString()); 2679 if (mTempRect.height() > 2680 (mView.getHeight()-vi.top-vi.bottom)) { 2681 // If the focus simply is not going to fit, then 2682 // best is probably just to leave things as-is. 2683 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2684 "Too tall; leaving scrollY=" + scrollY); 2685 } else if ((mTempRect.top-scrollY) < vi.top) { 2686 scrollY -= vi.top - (mTempRect.top-scrollY); 2687 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2688 "Top covered; scrollY=" + scrollY); 2689 } else if ((mTempRect.bottom-scrollY) 2690 > (mView.getHeight()-vi.bottom)) { 2691 scrollY += (mTempRect.bottom-scrollY) 2692 - (mView.getHeight()-vi.bottom); 2693 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2694 "Bottom covered; scrollY=" + scrollY); 2695 } 2696 handled = true; 2697 } 2698 } 2699 } 2700 } 2701 2702 if (scrollY != mScrollY) { 2703 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2704 + mScrollY + " , new=" + scrollY); 2705 if (!immediate && mResizeBuffer == null) { 2706 if (mScroller == null) { 2707 mScroller = new Scroller(mView.getContext()); 2708 } 2709 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2710 } else if (mScroller != null) { 2711 mScroller.abortAnimation(); 2712 } 2713 mScrollY = scrollY; 2714 } 2715 2716 return handled; 2717 } 2718 2719 /** 2720 * @hide 2721 */ 2722 public View getAccessibilityFocusedHost() { 2723 return mAccessibilityFocusedHost; 2724 } 2725 2726 /** 2727 * @hide 2728 */ 2729 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2730 return mAccessibilityFocusedVirtualView; 2731 } 2732 2733 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2734 // If we have a virtual view with accessibility focus we need 2735 // to clear the focus and invalidate the virtual view bounds. 2736 if (mAccessibilityFocusedVirtualView != null) { 2737 2738 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2739 View focusHost = mAccessibilityFocusedHost; 2740 focusHost.clearAccessibilityFocusNoCallbacks(); 2741 2742 // Wipe the state of the current accessibility focus since 2743 // the call into the provider to clear accessibility focus 2744 // will fire an accessibility event which will end up calling 2745 // this method and we want to have clean state when this 2746 // invocation happens. 2747 mAccessibilityFocusedHost = null; 2748 mAccessibilityFocusedVirtualView = null; 2749 2750 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2751 if (provider != null) { 2752 // Invalidate the area of the cleared accessibility focus. 2753 focusNode.getBoundsInParent(mTempRect); 2754 focusHost.invalidate(mTempRect); 2755 // Clear accessibility focus in the virtual node. 2756 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2757 focusNode.getSourceNodeId()); 2758 provider.performAction(virtualNodeId, 2759 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2760 } 2761 focusNode.recycle(); 2762 } 2763 if (mAccessibilityFocusedHost != null) { 2764 // Clear accessibility focus in the view. 2765 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2766 } 2767 2768 // Set the new focus host and node. 2769 mAccessibilityFocusedHost = view; 2770 mAccessibilityFocusedVirtualView = node; 2771 } 2772 2773 public void requestChildFocus(View child, View focused) { 2774 if (DEBUG_INPUT_RESIZE) { 2775 Log.v(TAG, "Request child focus: focus now " + focused); 2776 } 2777 checkThread(); 2778 scheduleTraversals(); 2779 } 2780 2781 public void clearChildFocus(View child) { 2782 if (DEBUG_INPUT_RESIZE) { 2783 Log.v(TAG, "Clearing child focus"); 2784 } 2785 checkThread(); 2786 scheduleTraversals(); 2787 } 2788 2789 @Override 2790 public ViewParent getParentForAccessibility() { 2791 return null; 2792 } 2793 2794 public void focusableViewAvailable(View v) { 2795 checkThread(); 2796 if (mView != null) { 2797 if (!mView.hasFocus()) { 2798 v.requestFocus(); 2799 } else { 2800 // the one case where will transfer focus away from the current one 2801 // is if the current view is a view group that prefers to give focus 2802 // to its children first AND the view is a descendant of it. 2803 View focused = mView.findFocus(); 2804 if (focused instanceof ViewGroup) { 2805 ViewGroup group = (ViewGroup) focused; 2806 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2807 && isViewDescendantOf(v, focused)) { 2808 v.requestFocus(); 2809 } 2810 } 2811 } 2812 } 2813 } 2814 2815 public void recomputeViewAttributes(View child) { 2816 checkThread(); 2817 if (mView == child) { 2818 mAttachInfo.mRecomputeGlobalAttributes = true; 2819 if (!mWillDrawSoon) { 2820 scheduleTraversals(); 2821 } 2822 } 2823 } 2824 2825 void dispatchDetachedFromWindow() { 2826 if (mView != null && mView.mAttachInfo != null) { 2827 if (mAttachInfo.mHardwareRenderer != null && 2828 mAttachInfo.mHardwareRenderer.isEnabled()) { 2829 mAttachInfo.mHardwareRenderer.validate(); 2830 } 2831 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2832 mView.dispatchDetachedFromWindow(); 2833 } 2834 2835 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2836 mAccessibilityManager.removeAccessibilityStateChangeListener( 2837 mAccessibilityInteractionConnectionManager); 2838 removeSendWindowContentChangedCallback(); 2839 2840 destroyHardwareRenderer(); 2841 2842 setAccessibilityFocus(null, null); 2843 2844 mView = null; 2845 mAttachInfo.mRootView = null; 2846 mAttachInfo.mSurface = null; 2847 2848 mSurface.release(); 2849 2850 if (mInputQueueCallback != null && mInputQueue != null) { 2851 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2852 mInputQueueCallback = null; 2853 mInputQueue = null; 2854 } else if (mInputEventReceiver != null) { 2855 mInputEventReceiver.dispose(); 2856 mInputEventReceiver = null; 2857 } 2858 try { 2859 mWindowSession.remove(mWindow); 2860 } catch (RemoteException e) { 2861 } 2862 2863 // Dispose the input channel after removing the window so the Window Manager 2864 // doesn't interpret the input channel being closed as an abnormal termination. 2865 if (mInputChannel != null) { 2866 mInputChannel.dispose(); 2867 mInputChannel = null; 2868 } 2869 2870 unscheduleTraversals(); 2871 } 2872 2873 void updateConfiguration(Configuration config, boolean force) { 2874 if (DEBUG_CONFIGURATION) Log.v(TAG, 2875 "Applying new config to window " 2876 + mWindowAttributes.getTitle() 2877 + ": " + config); 2878 2879 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2880 if (ci != null) { 2881 config = new Configuration(config); 2882 ci.applyToConfiguration(mNoncompatDensity, config); 2883 } 2884 2885 synchronized (sConfigCallbacks) { 2886 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2887 sConfigCallbacks.get(i).onConfigurationChanged(config); 2888 } 2889 } 2890 if (mView != null) { 2891 // At this point the resources have been updated to 2892 // have the most recent config, whatever that is. Use 2893 // the one in them which may be newer. 2894 config = mView.getResources().getConfiguration(); 2895 if (force || mLastConfiguration.diff(config) != 0) { 2896 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2897 final int currentLayoutDirection = config.getLayoutDirection(); 2898 mLastConfiguration.setTo(config); 2899 if (lastLayoutDirection != currentLayoutDirection && 2900 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2901 mView.setLayoutDirection(currentLayoutDirection); 2902 } 2903 mView.dispatchConfigurationChanged(config); 2904 } 2905 } 2906 } 2907 2908 /** 2909 * Return true if child is an ancestor of parent, (or equal to the parent). 2910 */ 2911 public static boolean isViewDescendantOf(View child, View parent) { 2912 if (child == parent) { 2913 return true; 2914 } 2915 2916 final ViewParent theParent = child.getParent(); 2917 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2918 } 2919 2920 private static void forceLayout(View view) { 2921 view.forceLayout(); 2922 if (view instanceof ViewGroup) { 2923 ViewGroup group = (ViewGroup) view; 2924 final int count = group.getChildCount(); 2925 for (int i = 0; i < count; i++) { 2926 forceLayout(group.getChildAt(i)); 2927 } 2928 } 2929 } 2930 2931 private final static int MSG_INVALIDATE = 1; 2932 private final static int MSG_INVALIDATE_RECT = 2; 2933 private final static int MSG_DIE = 3; 2934 private final static int MSG_RESIZED = 4; 2935 private final static int MSG_RESIZED_REPORT = 5; 2936 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2937 private final static int MSG_DISPATCH_KEY = 7; 2938 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2939 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2940 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2941 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2942 private final static int MSG_CHECK_FOCUS = 13; 2943 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2944 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2945 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2946 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2947 private final static int MSG_UPDATE_CONFIGURATION = 18; 2948 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2949 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2950 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2951 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2952 private final static int MSG_INVALIDATE_WORLD = 23; 2953 private final static int MSG_WINDOW_MOVED = 24; 2954 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 25; 2955 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 26; 2956 2957 final class ViewRootHandler extends Handler { 2958 @Override 2959 public String getMessageName(Message message) { 2960 switch (message.what) { 2961 case MSG_INVALIDATE: 2962 return "MSG_INVALIDATE"; 2963 case MSG_INVALIDATE_RECT: 2964 return "MSG_INVALIDATE_RECT"; 2965 case MSG_DIE: 2966 return "MSG_DIE"; 2967 case MSG_RESIZED: 2968 return "MSG_RESIZED"; 2969 case MSG_RESIZED_REPORT: 2970 return "MSG_RESIZED_REPORT"; 2971 case MSG_WINDOW_FOCUS_CHANGED: 2972 return "MSG_WINDOW_FOCUS_CHANGED"; 2973 case MSG_DISPATCH_KEY: 2974 return "MSG_DISPATCH_KEY"; 2975 case MSG_DISPATCH_APP_VISIBILITY: 2976 return "MSG_DISPATCH_APP_VISIBILITY"; 2977 case MSG_DISPATCH_GET_NEW_SURFACE: 2978 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2979 case MSG_DISPATCH_KEY_FROM_IME: 2980 return "MSG_DISPATCH_KEY_FROM_IME"; 2981 case MSG_FINISH_INPUT_CONNECTION: 2982 return "MSG_FINISH_INPUT_CONNECTION"; 2983 case MSG_CHECK_FOCUS: 2984 return "MSG_CHECK_FOCUS"; 2985 case MSG_CLOSE_SYSTEM_DIALOGS: 2986 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2987 case MSG_DISPATCH_DRAG_EVENT: 2988 return "MSG_DISPATCH_DRAG_EVENT"; 2989 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2990 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2991 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2992 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2993 case MSG_UPDATE_CONFIGURATION: 2994 return "MSG_UPDATE_CONFIGURATION"; 2995 case MSG_PROCESS_INPUT_EVENTS: 2996 return "MSG_PROCESS_INPUT_EVENTS"; 2997 case MSG_DISPATCH_SCREEN_STATE: 2998 return "MSG_DISPATCH_SCREEN_STATE"; 2999 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3000 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3001 case MSG_DISPATCH_DONE_ANIMATING: 3002 return "MSG_DISPATCH_DONE_ANIMATING"; 3003 case MSG_WINDOW_MOVED: 3004 return "MSG_WINDOW_MOVED"; 3005 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3006 return "MSG_ENQUEUE_X_AXIS_KEY_REPEAT"; 3007 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: 3008 return "MSG_ENQUEUE_Y_AXIS_KEY_REPEAT"; 3009 } 3010 return super.getMessageName(message); 3011 } 3012 3013 @Override 3014 public void handleMessage(Message msg) { 3015 switch (msg.what) { 3016 case MSG_INVALIDATE: 3017 ((View) msg.obj).invalidate(); 3018 break; 3019 case MSG_INVALIDATE_RECT: 3020 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3021 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3022 info.recycle(); 3023 break; 3024 case MSG_PROCESS_INPUT_EVENTS: 3025 mProcessInputEventsScheduled = false; 3026 doProcessInputEvents(); 3027 break; 3028 case MSG_DISPATCH_APP_VISIBILITY: 3029 handleAppVisibility(msg.arg1 != 0); 3030 break; 3031 case MSG_DISPATCH_GET_NEW_SURFACE: 3032 handleGetNewSurface(); 3033 break; 3034 case MSG_RESIZED: { 3035 // Recycled in the fall through... 3036 SomeArgs args = (SomeArgs) msg.obj; 3037 if (mWinFrame.equals(args.arg1) 3038 && mPendingOverscanInsets.equals(args.arg5) 3039 && mPendingContentInsets.equals(args.arg2) 3040 && mPendingVisibleInsets.equals(args.arg3) 3041 && args.arg4 == null) { 3042 break; 3043 } 3044 } // fall through... 3045 case MSG_RESIZED_REPORT: 3046 if (mAdded) { 3047 SomeArgs args = (SomeArgs) msg.obj; 3048 3049 Configuration config = (Configuration) args.arg4; 3050 if (config != null) { 3051 updateConfiguration(config, false); 3052 } 3053 3054 mWinFrame.set((Rect) args.arg1); 3055 mPendingOverscanInsets.set((Rect) args.arg5); 3056 mPendingContentInsets.set((Rect) args.arg2); 3057 mPendingVisibleInsets.set((Rect) args.arg3); 3058 3059 args.recycle(); 3060 3061 if (msg.what == MSG_RESIZED_REPORT) { 3062 mReportNextDraw = true; 3063 } 3064 3065 if (mView != null) { 3066 forceLayout(mView); 3067 } 3068 3069 requestLayout(); 3070 } 3071 break; 3072 case MSG_WINDOW_MOVED: 3073 if (mAdded) { 3074 final int w = mWinFrame.width(); 3075 final int h = mWinFrame.height(); 3076 final int l = msg.arg1; 3077 final int t = msg.arg2; 3078 mWinFrame.left = l; 3079 mWinFrame.right = l + w; 3080 mWinFrame.top = t; 3081 mWinFrame.bottom = t + h; 3082 3083 if (mView != null) { 3084 forceLayout(mView); 3085 } 3086 requestLayout(); 3087 } 3088 break; 3089 case MSG_WINDOW_FOCUS_CHANGED: { 3090 if (mAdded) { 3091 boolean hasWindowFocus = msg.arg1 != 0; 3092 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3093 3094 profileRendering(hasWindowFocus); 3095 3096 if (hasWindowFocus) { 3097 boolean inTouchMode = msg.arg2 != 0; 3098 ensureTouchModeLocally(inTouchMode); 3099 3100 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3101 mFullRedrawNeeded = true; 3102 try { 3103 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3104 mWidth, mHeight, mHolder.getSurface()); 3105 } catch (Surface.OutOfResourcesException e) { 3106 Log.e(TAG, "OutOfResourcesException locking surface", e); 3107 try { 3108 if (!mWindowSession.outOfMemory(mWindow)) { 3109 Slog.w(TAG, "No processes killed for memory; killing self"); 3110 Process.killProcess(Process.myPid()); 3111 } 3112 } catch (RemoteException ex) { 3113 } 3114 // Retry in a bit. 3115 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3116 return; 3117 } 3118 } 3119 } 3120 3121 mLastWasImTarget = WindowManager.LayoutParams 3122 .mayUseInputMethod(mWindowAttributes.flags); 3123 3124 InputMethodManager imm = InputMethodManager.peekInstance(); 3125 if (mView != null) { 3126 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3127 imm.startGettingWindowFocus(mView); 3128 } 3129 mAttachInfo.mKeyDispatchState.reset(); 3130 mView.dispatchWindowFocusChanged(hasWindowFocus); 3131 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3132 } 3133 3134 // Note: must be done after the focus change callbacks, 3135 // so all of the view state is set up correctly. 3136 if (hasWindowFocus) { 3137 if (imm != null && mLastWasImTarget) { 3138 imm.onWindowFocus(mView, mView.findFocus(), 3139 mWindowAttributes.softInputMode, 3140 !mHasHadWindowFocus, mWindowAttributes.flags); 3141 } 3142 // Clear the forward bit. We can just do this directly, since 3143 // the window manager doesn't care about it. 3144 mWindowAttributes.softInputMode &= 3145 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3146 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3147 .softInputMode &= 3148 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3149 mHasHadWindowFocus = true; 3150 } 3151 3152 setAccessibilityFocus(null, null); 3153 3154 if (mView != null && mAccessibilityManager.isEnabled()) { 3155 if (hasWindowFocus) { 3156 mView.sendAccessibilityEvent( 3157 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3158 } 3159 } 3160 } 3161 } break; 3162 case MSG_DIE: 3163 doDie(); 3164 break; 3165 case MSG_DISPATCH_KEY: { 3166 KeyEvent event = (KeyEvent)msg.obj; 3167 enqueueInputEvent(event, null, 0, true); 3168 } break; 3169 case MSG_DISPATCH_KEY_FROM_IME: { 3170 if (LOCAL_LOGV) Log.v( 3171 TAG, "Dispatching key " 3172 + msg.obj + " from IME to " + mView); 3173 KeyEvent event = (KeyEvent)msg.obj; 3174 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3175 // The IME is trying to say this event is from the 3176 // system! Bad bad bad! 3177 //noinspection UnusedAssignment 3178 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3179 } 3180 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3181 } break; 3182 case MSG_FINISH_INPUT_CONNECTION: { 3183 InputMethodManager imm = InputMethodManager.peekInstance(); 3184 if (imm != null) { 3185 imm.reportFinishInputConnection((InputConnection)msg.obj); 3186 } 3187 } break; 3188 case MSG_CHECK_FOCUS: { 3189 InputMethodManager imm = InputMethodManager.peekInstance(); 3190 if (imm != null) { 3191 imm.checkFocus(); 3192 } 3193 } break; 3194 case MSG_CLOSE_SYSTEM_DIALOGS: { 3195 if (mView != null) { 3196 mView.onCloseSystemDialogs((String)msg.obj); 3197 } 3198 } break; 3199 case MSG_DISPATCH_DRAG_EVENT: 3200 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3201 DragEvent event = (DragEvent)msg.obj; 3202 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3203 handleDragEvent(event); 3204 } break; 3205 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3206 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3207 } break; 3208 case MSG_UPDATE_CONFIGURATION: { 3209 Configuration config = (Configuration)msg.obj; 3210 if (config.isOtherSeqNewer(mLastConfiguration)) { 3211 config = mLastConfiguration; 3212 } 3213 updateConfiguration(config, false); 3214 } break; 3215 case MSG_DISPATCH_SCREEN_STATE: { 3216 if (mView != null) { 3217 handleScreenStateChange(msg.arg1 == 1); 3218 } 3219 } break; 3220 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3221 setAccessibilityFocus(null, null); 3222 } break; 3223 case MSG_DISPATCH_DONE_ANIMATING: { 3224 handleDispatchDoneAnimating(); 3225 } break; 3226 case MSG_INVALIDATE_WORLD: { 3227 if (mView != null) { 3228 invalidateWorld(mView); 3229 } 3230 } break; 3231 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3232 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 3233 KeyEvent oldEvent = (KeyEvent)msg.obj; 3234 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, SystemClock.uptimeMillis(), 3235 oldEvent.getRepeatCount() + 1); 3236 if (mAttachInfo.mHasWindowFocus) { 3237 enqueueInputEvent(e); 3238 Message m = obtainMessage(msg.what, e); 3239 m.setAsynchronous(true); 3240 sendMessageDelayed(m, mViewConfiguration.getKeyRepeatDelay()); 3241 } 3242 } break; 3243 } 3244 } 3245 } 3246 3247 final ViewRootHandler mHandler = new ViewRootHandler(); 3248 3249 /** 3250 * Something in the current window tells us we need to change the touch mode. For 3251 * example, we are not in touch mode, and the user touches the screen. 3252 * 3253 * If the touch mode has changed, tell the window manager, and handle it locally. 3254 * 3255 * @param inTouchMode Whether we want to be in touch mode. 3256 * @return True if the touch mode changed and focus changed was changed as a result 3257 */ 3258 boolean ensureTouchMode(boolean inTouchMode) { 3259 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3260 + "touch mode is " + mAttachInfo.mInTouchMode); 3261 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3262 3263 // tell the window manager 3264 try { 3265 mWindowSession.setInTouchMode(inTouchMode); 3266 } catch (RemoteException e) { 3267 throw new RuntimeException(e); 3268 } 3269 3270 // handle the change 3271 return ensureTouchModeLocally(inTouchMode); 3272 } 3273 3274 /** 3275 * Ensure that the touch mode for this window is set, and if it is changing, 3276 * take the appropriate action. 3277 * @param inTouchMode Whether we want to be in touch mode. 3278 * @return True if the touch mode changed and focus changed was changed as a result 3279 */ 3280 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3281 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3282 + "touch mode is " + mAttachInfo.mInTouchMode); 3283 3284 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3285 3286 mAttachInfo.mInTouchMode = inTouchMode; 3287 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3288 3289 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3290 } 3291 3292 private boolean enterTouchMode() { 3293 if (mView != null) { 3294 if (mView.hasFocus()) { 3295 // note: not relying on mFocusedView here because this could 3296 // be when the window is first being added, and mFocused isn't 3297 // set yet. 3298 final View focused = mView.findFocus(); 3299 if (focused != null && !focused.isFocusableInTouchMode()) { 3300 final ViewGroup ancestorToTakeFocus = 3301 findAncestorToTakeFocusInTouchMode(focused); 3302 if (ancestorToTakeFocus != null) { 3303 // there is an ancestor that wants focus after its descendants that 3304 // is focusable in touch mode.. give it focus 3305 return ancestorToTakeFocus.requestFocus(); 3306 } else { 3307 // nothing appropriate to have focus in touch mode, clear it out 3308 focused.unFocus(); 3309 return true; 3310 } 3311 } 3312 } 3313 } 3314 return false; 3315 } 3316 3317 /** 3318 * Find an ancestor of focused that wants focus after its descendants and is 3319 * focusable in touch mode. 3320 * @param focused The currently focused view. 3321 * @return An appropriate view, or null if no such view exists. 3322 */ 3323 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3324 ViewParent parent = focused.getParent(); 3325 while (parent instanceof ViewGroup) { 3326 final ViewGroup vgParent = (ViewGroup) parent; 3327 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3328 && vgParent.isFocusableInTouchMode()) { 3329 return vgParent; 3330 } 3331 if (vgParent.isRootNamespace()) { 3332 return null; 3333 } else { 3334 parent = vgParent.getParent(); 3335 } 3336 } 3337 return null; 3338 } 3339 3340 private boolean leaveTouchMode() { 3341 if (mView != null) { 3342 if (mView.hasFocus()) { 3343 View focusedView = mView.findFocus(); 3344 if (!(focusedView instanceof ViewGroup)) { 3345 // some view has focus, let it keep it 3346 return false; 3347 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3348 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3349 // some view group has focus, and doesn't prefer its children 3350 // over itself for focus, so let them keep it. 3351 return false; 3352 } 3353 } 3354 3355 // find the best view to give focus to in this brave new non-touch-mode 3356 // world 3357 final View focused = focusSearch(null, View.FOCUS_DOWN); 3358 if (focused != null) { 3359 return focused.requestFocus(View.FOCUS_DOWN); 3360 } 3361 } 3362 return false; 3363 } 3364 3365 private int deliverInputEvent(QueuedInputEvent q) { 3366 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3367 try { 3368 if (q.mEvent instanceof KeyEvent) { 3369 return deliverKeyEvent(q); 3370 } else { 3371 final int source = q.mEvent.getSource(); 3372 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3373 return deliverPointerEvent(q); 3374 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3375 return deliverTrackballEvent(q); 3376 } else { 3377 return deliverGenericMotionEvent(q); 3378 } 3379 } 3380 } finally { 3381 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3382 } 3383 } 3384 3385 private int deliverInputEventPostIme(QueuedInputEvent q) { 3386 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3387 try { 3388 if (q.mEvent instanceof KeyEvent) { 3389 return deliverKeyEventPostIme(q); 3390 } else { 3391 final int source = q.mEvent.getSource(); 3392 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3393 return deliverTrackballEventPostIme(q); 3394 } else { 3395 return deliverGenericMotionEventPostIme(q); 3396 } 3397 } 3398 } finally { 3399 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3400 } 3401 } 3402 3403 private int deliverPointerEvent(QueuedInputEvent q) { 3404 final MotionEvent event = (MotionEvent)q.mEvent; 3405 final boolean isTouchEvent = event.isTouchEvent(); 3406 if (mInputEventConsistencyVerifier != null) { 3407 if (isTouchEvent) { 3408 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3409 } else { 3410 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3411 } 3412 } 3413 3414 // If there is no view, then the event will not be handled. 3415 if (mView == null || !mAdded) { 3416 return EVENT_NOT_HANDLED; 3417 } 3418 3419 // Translate the pointer event for compatibility, if needed. 3420 if (mTranslator != null) { 3421 mTranslator.translateEventInScreenToAppWindow(event); 3422 } 3423 3424 // Enter touch mode on down or scroll. 3425 final int action = event.getAction(); 3426 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3427 ensureTouchMode(true); 3428 } 3429 3430 // Offset the scroll position. 3431 if (mCurScrollY != 0) { 3432 event.offsetLocation(0, mCurScrollY); 3433 } 3434 if (MEASURE_LATENCY) { 3435 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3436 } 3437 3438 // Remember the touch position for possible drag-initiation. 3439 if (isTouchEvent) { 3440 mLastTouchPoint.x = event.getRawX(); 3441 mLastTouchPoint.y = event.getRawY(); 3442 } 3443 3444 // Dispatch touch to view hierarchy. 3445 boolean handled = mView.dispatchPointerEvent(event); 3446 if (MEASURE_LATENCY) { 3447 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3448 } 3449 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3450 } 3451 3452 private int deliverTrackballEvent(QueuedInputEvent q) { 3453 final MotionEvent event = (MotionEvent)q.mEvent; 3454 if (mInputEventConsistencyVerifier != null) { 3455 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3456 } 3457 3458 int result = EVENT_POST_IME; 3459 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3460 if (LOCAL_LOGV) 3461 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3462 3463 // Dispatch to the IME before propagating down the view hierarchy. 3464 result = dispatchImeInputEvent(q); 3465 } 3466 return result; 3467 } 3468 3469 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3470 final MotionEvent event = (MotionEvent) q.mEvent; 3471 3472 // If there is no view, then the event will not be handled. 3473 if (mView == null || !mAdded) { 3474 return EVENT_NOT_HANDLED; 3475 } 3476 3477 // Deliver the trackball event to the view. 3478 if (mView.dispatchTrackballEvent(event)) { 3479 // If we reach this, we delivered a trackball event to mView and 3480 // mView consumed it. Because we will not translate the trackball 3481 // event into a key event, touch mode will not exit, so we exit 3482 // touch mode here. 3483 ensureTouchMode(false); 3484 mLastTrackballTime = Integer.MIN_VALUE; 3485 return EVENT_HANDLED; 3486 } 3487 3488 // Translate the trackball event into DPAD keys and try to deliver those. 3489 final TrackballAxis x = mTrackballAxisX; 3490 final TrackballAxis y = mTrackballAxisY; 3491 3492 long curTime = SystemClock.uptimeMillis(); 3493 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3494 // It has been too long since the last movement, 3495 // so restart at the beginning. 3496 x.reset(0); 3497 y.reset(0); 3498 mLastTrackballTime = curTime; 3499 } 3500 3501 final int action = event.getAction(); 3502 final int metaState = event.getMetaState(); 3503 switch (action) { 3504 case MotionEvent.ACTION_DOWN: 3505 x.reset(2); 3506 y.reset(2); 3507 enqueueInputEvent(new KeyEvent(curTime, curTime, 3508 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3509 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3510 InputDevice.SOURCE_KEYBOARD)); 3511 break; 3512 case MotionEvent.ACTION_UP: 3513 x.reset(2); 3514 y.reset(2); 3515 enqueueInputEvent(new KeyEvent(curTime, curTime, 3516 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3517 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3518 InputDevice.SOURCE_KEYBOARD)); 3519 break; 3520 } 3521 3522 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3523 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3524 + " move=" + event.getX() 3525 + " / Y=" + y.position + " step=" 3526 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3527 + " move=" + event.getY()); 3528 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3529 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3530 3531 // Generate DPAD events based on the trackball movement. 3532 // We pick the axis that has moved the most as the direction of 3533 // the DPAD. When we generate DPAD events for one axis, then the 3534 // other axis is reset -- we don't want to perform DPAD jumps due 3535 // to slight movements in the trackball when making major movements 3536 // along the other axis. 3537 int keycode = 0; 3538 int movement = 0; 3539 float accel = 1; 3540 if (xOff > yOff) { 3541 movement = x.generate((2/event.getXPrecision())); 3542 if (movement != 0) { 3543 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3544 : KeyEvent.KEYCODE_DPAD_LEFT; 3545 accel = x.acceleration; 3546 y.reset(2); 3547 } 3548 } else if (yOff > 0) { 3549 movement = y.generate((2/event.getYPrecision())); 3550 if (movement != 0) { 3551 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3552 : KeyEvent.KEYCODE_DPAD_UP; 3553 accel = y.acceleration; 3554 x.reset(2); 3555 } 3556 } 3557 3558 if (keycode != 0) { 3559 if (movement < 0) movement = -movement; 3560 int accelMovement = (int)(movement * accel); 3561 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3562 + " accelMovement=" + accelMovement 3563 + " accel=" + accel); 3564 if (accelMovement > movement) { 3565 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3566 + keycode); 3567 movement--; 3568 int repeatCount = accelMovement - movement; 3569 enqueueInputEvent(new KeyEvent(curTime, curTime, 3570 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3571 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3572 InputDevice.SOURCE_KEYBOARD)); 3573 } 3574 while (movement > 0) { 3575 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3576 + keycode); 3577 movement--; 3578 curTime = SystemClock.uptimeMillis(); 3579 enqueueInputEvent(new KeyEvent(curTime, curTime, 3580 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3581 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3582 InputDevice.SOURCE_KEYBOARD)); 3583 enqueueInputEvent(new KeyEvent(curTime, curTime, 3584 KeyEvent.ACTION_UP, keycode, 0, metaState, 3585 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3586 InputDevice.SOURCE_KEYBOARD)); 3587 } 3588 mLastTrackballTime = curTime; 3589 } 3590 3591 // Unfortunately we can't tell whether the application consumed the keys, so 3592 // we always consider the trackball event handled. 3593 return EVENT_HANDLED; 3594 } 3595 3596 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3597 final MotionEvent event = (MotionEvent)q.mEvent; 3598 if (mInputEventConsistencyVerifier != null) { 3599 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3600 } 3601 3602 int result = EVENT_POST_IME; 3603 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3604 if (LOCAL_LOGV) 3605 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3606 3607 // Dispatch to the IME before propagating down the view hierarchy. 3608 result = dispatchImeInputEvent(q); 3609 } 3610 return result; 3611 } 3612 3613 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3614 final MotionEvent event = (MotionEvent) q.mEvent; 3615 final int source = event.getSource(); 3616 final boolean isJoystick = event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK); 3617 final boolean isTouchNavigation = event.isFromSource(InputDevice.SOURCE_TOUCH_NAVIGATION); 3618 3619 // If there is no view, then the event will not be handled. 3620 if (mView == null || !mAdded) { 3621 if (isJoystick) { 3622 updateJoystickDirection(event, false); 3623 } else if (isTouchNavigation) { 3624 mSimulatedDpad.updateTouchNavigation(this, event, false); 3625 } 3626 return EVENT_NOT_HANDLED; 3627 } 3628 3629 // Deliver the event to the view. 3630 if (mView.dispatchGenericMotionEvent(event)) { 3631 if (isJoystick) { 3632 updateJoystickDirection(event, false); 3633 } else if (isTouchNavigation) { 3634 mSimulatedDpad.updateTouchNavigation(this, event, false); 3635 } 3636 return EVENT_HANDLED; 3637 } 3638 3639 if (isJoystick) { 3640 // Translate the joystick event into DPAD keys and try to deliver 3641 // those. 3642 updateJoystickDirection(event, true); 3643 return EVENT_HANDLED; 3644 } 3645 if (isTouchNavigation) { 3646 mSimulatedDpad.updateTouchNavigation(this, event, true); 3647 return EVENT_HANDLED; 3648 } 3649 return EVENT_NOT_HANDLED; 3650 } 3651 3652 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3653 final long time = event.getEventTime(); 3654 final int metaState = event.getMetaState(); 3655 final int deviceId = event.getDeviceId(); 3656 final int source = event.getSource(); 3657 3658 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3659 if (xDirection == 0) { 3660 xDirection = joystickAxisValueToDirection(event.getX()); 3661 } 3662 3663 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3664 if (yDirection == 0) { 3665 yDirection = joystickAxisValueToDirection(event.getY()); 3666 } 3667 3668 if (xDirection != mLastJoystickXDirection) { 3669 if (mLastJoystickXKeyCode != 0) { 3670 mHandler.removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 3671 enqueueInputEvent(new KeyEvent(time, time, 3672 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3673 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3674 mLastJoystickXKeyCode = 0; 3675 } 3676 3677 mLastJoystickXDirection = xDirection; 3678 3679 if (xDirection != 0 && synthesizeNewKeys) { 3680 mLastJoystickXKeyCode = xDirection > 0 3681 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3682 final KeyEvent e = new KeyEvent(time, time, 3683 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3684 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3685 enqueueInputEvent(e); 3686 Message m = mHandler.obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 3687 m.setAsynchronous(true); 3688 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3689 } 3690 } 3691 3692 if (yDirection != mLastJoystickYDirection) { 3693 if (mLastJoystickYKeyCode != 0) { 3694 mHandler.removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 3695 enqueueInputEvent(new KeyEvent(time, time, 3696 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3697 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3698 mLastJoystickYKeyCode = 0; 3699 } 3700 3701 mLastJoystickYDirection = yDirection; 3702 3703 if (yDirection != 0 && synthesizeNewKeys) { 3704 mLastJoystickYKeyCode = yDirection > 0 3705 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3706 final KeyEvent e = new KeyEvent(time, time, 3707 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3708 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3709 enqueueInputEvent(e); 3710 Message m = mHandler.obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 3711 m.setAsynchronous(true); 3712 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3713 } 3714 } 3715 } 3716 3717 private static int joystickAxisValueToDirection(float value) { 3718 if (value >= 0.5f) { 3719 return 1; 3720 } else if (value <= -0.5f) { 3721 return -1; 3722 } else { 3723 return 0; 3724 } 3725 } 3726 3727 /** 3728 * Returns true if the key is used for keyboard navigation. 3729 * @param keyEvent The key event. 3730 * @return True if the key is used for keyboard navigation. 3731 */ 3732 private static boolean isNavigationKey(KeyEvent keyEvent) { 3733 switch (keyEvent.getKeyCode()) { 3734 case KeyEvent.KEYCODE_DPAD_LEFT: 3735 case KeyEvent.KEYCODE_DPAD_RIGHT: 3736 case KeyEvent.KEYCODE_DPAD_UP: 3737 case KeyEvent.KEYCODE_DPAD_DOWN: 3738 case KeyEvent.KEYCODE_DPAD_CENTER: 3739 case KeyEvent.KEYCODE_PAGE_UP: 3740 case KeyEvent.KEYCODE_PAGE_DOWN: 3741 case KeyEvent.KEYCODE_MOVE_HOME: 3742 case KeyEvent.KEYCODE_MOVE_END: 3743 case KeyEvent.KEYCODE_TAB: 3744 case KeyEvent.KEYCODE_SPACE: 3745 case KeyEvent.KEYCODE_ENTER: 3746 return true; 3747 } 3748 return false; 3749 } 3750 3751 /** 3752 * Returns true if the key is used for typing. 3753 * @param keyEvent The key event. 3754 * @return True if the key is used for typing. 3755 */ 3756 private static boolean isTypingKey(KeyEvent keyEvent) { 3757 return keyEvent.getUnicodeChar() > 0; 3758 } 3759 3760 /** 3761 * See if the key event means we should leave touch mode (and leave touch mode if so). 3762 * @param event The key event. 3763 * @return Whether this key event should be consumed (meaning the act of 3764 * leaving touch mode alone is considered the event). 3765 */ 3766 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3767 // Only relevant in touch mode. 3768 if (!mAttachInfo.mInTouchMode) { 3769 return false; 3770 } 3771 3772 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3773 final int action = event.getAction(); 3774 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3775 return false; 3776 } 3777 3778 // Don't leave touch mode if the IME told us not to. 3779 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3780 return false; 3781 } 3782 3783 // If the key can be used for keyboard navigation then leave touch mode 3784 // and select a focused view if needed (in ensureTouchMode). 3785 // When a new focused view is selected, we consume the navigation key because 3786 // navigation doesn't make much sense unless a view already has focus so 3787 // the key's purpose is to set focus. 3788 if (isNavigationKey(event)) { 3789 return ensureTouchMode(false); 3790 } 3791 3792 // If the key can be used for typing then leave touch mode 3793 // and select a focused view if needed (in ensureTouchMode). 3794 // Always allow the view to process the typing key. 3795 if (isTypingKey(event)) { 3796 ensureTouchMode(false); 3797 return false; 3798 } 3799 3800 return false; 3801 } 3802 3803 private int deliverKeyEvent(QueuedInputEvent q) { 3804 final KeyEvent event = (KeyEvent)q.mEvent; 3805 if (mInputEventConsistencyVerifier != null) { 3806 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3807 } 3808 3809 int result = EVENT_POST_IME; 3810 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3811 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3812 3813 // Perform predispatching before the IME. 3814 if (mView.dispatchKeyEventPreIme(event)) { 3815 return EVENT_HANDLED; 3816 } 3817 3818 // Dispatch to the IME before propagating down the view hierarchy. 3819 result = dispatchImeInputEvent(q); 3820 } 3821 return result; 3822 } 3823 3824 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3825 final KeyEvent event = (KeyEvent)q.mEvent; 3826 3827 // If the view went away, then the event will not be handled. 3828 if (mView == null || !mAdded) { 3829 return EVENT_NOT_HANDLED; 3830 } 3831 3832 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3833 if (checkForLeavingTouchModeAndConsume(event)) { 3834 return EVENT_HANDLED; 3835 } 3836 3837 // Make sure the fallback event policy sees all keys that will be delivered to the 3838 // view hierarchy. 3839 mFallbackEventHandler.preDispatchKeyEvent(event); 3840 3841 // Deliver the key to the view hierarchy. 3842 if (mView.dispatchKeyEvent(event)) { 3843 return EVENT_HANDLED; 3844 } 3845 3846 // If the Control modifier is held, try to interpret the key as a shortcut. 3847 if (event.getAction() == KeyEvent.ACTION_DOWN 3848 && event.isCtrlPressed() 3849 && event.getRepeatCount() == 0 3850 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3851 if (mView.dispatchKeyShortcutEvent(event)) { 3852 return EVENT_HANDLED; 3853 } 3854 } 3855 3856 // Apply the fallback event policy. 3857 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3858 return EVENT_HANDLED; 3859 } 3860 3861 // Handle automatic focus changes. 3862 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3863 int direction = 0; 3864 switch (event.getKeyCode()) { 3865 case KeyEvent.KEYCODE_DPAD_LEFT: 3866 if (event.hasNoModifiers()) { 3867 direction = View.FOCUS_LEFT; 3868 } 3869 break; 3870 case KeyEvent.KEYCODE_DPAD_RIGHT: 3871 if (event.hasNoModifiers()) { 3872 direction = View.FOCUS_RIGHT; 3873 } 3874 break; 3875 case KeyEvent.KEYCODE_DPAD_UP: 3876 if (event.hasNoModifiers()) { 3877 direction = View.FOCUS_UP; 3878 } 3879 break; 3880 case KeyEvent.KEYCODE_DPAD_DOWN: 3881 if (event.hasNoModifiers()) { 3882 direction = View.FOCUS_DOWN; 3883 } 3884 break; 3885 case KeyEvent.KEYCODE_TAB: 3886 if (event.hasNoModifiers()) { 3887 direction = View.FOCUS_FORWARD; 3888 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3889 direction = View.FOCUS_BACKWARD; 3890 } 3891 break; 3892 } 3893 if (direction != 0) { 3894 View focused = mView.findFocus(); 3895 if (focused != null) { 3896 View v = focused.focusSearch(direction); 3897 if (v != null && v != focused) { 3898 // do the math the get the interesting rect 3899 // of previous focused into the coord system of 3900 // newly focused view 3901 focused.getFocusedRect(mTempRect); 3902 if (mView instanceof ViewGroup) { 3903 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3904 focused, mTempRect); 3905 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3906 v, mTempRect); 3907 } 3908 if (v.requestFocus(direction, mTempRect)) { 3909 playSoundEffect(SoundEffectConstants 3910 .getContantForFocusDirection(direction)); 3911 return EVENT_HANDLED; 3912 } 3913 } 3914 3915 // Give the focused view a last chance to handle the dpad key. 3916 if (mView.dispatchUnhandledMove(focused, direction)) { 3917 return EVENT_HANDLED; 3918 } 3919 } else { 3920 // find the best view to give focus to in this non-touch-mode with no-focus 3921 View v = focusSearch(null, direction); 3922 if (v != null && v.requestFocus(direction)) { 3923 return EVENT_HANDLED; 3924 } 3925 } 3926 } 3927 } 3928 3929 // Key was unhandled. 3930 return EVENT_NOT_HANDLED; 3931 } 3932 3933 /* drag/drop */ 3934 void setLocalDragState(Object obj) { 3935 mLocalDragState = obj; 3936 } 3937 3938 private void handleDragEvent(DragEvent event) { 3939 // From the root, only drag start/end/location are dispatched. entered/exited 3940 // are determined and dispatched by the viewgroup hierarchy, who then report 3941 // that back here for ultimate reporting back to the framework. 3942 if (mView != null && mAdded) { 3943 final int what = event.mAction; 3944 3945 if (what == DragEvent.ACTION_DRAG_EXITED) { 3946 // A direct EXITED event means that the window manager knows we've just crossed 3947 // a window boundary, so the current drag target within this one must have 3948 // just been exited. Send it the usual notifications and then we're done 3949 // for now. 3950 mView.dispatchDragEvent(event); 3951 } else { 3952 // Cache the drag description when the operation starts, then fill it in 3953 // on subsequent calls as a convenience 3954 if (what == DragEvent.ACTION_DRAG_STARTED) { 3955 mCurrentDragView = null; // Start the current-recipient tracking 3956 mDragDescription = event.mClipDescription; 3957 } else { 3958 event.mClipDescription = mDragDescription; 3959 } 3960 3961 // For events with a [screen] location, translate into window coordinates 3962 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3963 mDragPoint.set(event.mX, event.mY); 3964 if (mTranslator != null) { 3965 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3966 } 3967 3968 if (mCurScrollY != 0) { 3969 mDragPoint.offset(0, mCurScrollY); 3970 } 3971 3972 event.mX = mDragPoint.x; 3973 event.mY = mDragPoint.y; 3974 } 3975 3976 // Remember who the current drag target is pre-dispatch 3977 final View prevDragView = mCurrentDragView; 3978 3979 // Now dispatch the drag/drop event 3980 boolean result = mView.dispatchDragEvent(event); 3981 3982 // If we changed apparent drag target, tell the OS about it 3983 if (prevDragView != mCurrentDragView) { 3984 try { 3985 if (prevDragView != null) { 3986 mWindowSession.dragRecipientExited(mWindow); 3987 } 3988 if (mCurrentDragView != null) { 3989 mWindowSession.dragRecipientEntered(mWindow); 3990 } 3991 } catch (RemoteException e) { 3992 Slog.e(TAG, "Unable to note drag target change"); 3993 } 3994 } 3995 3996 // Report the drop result when we're done 3997 if (what == DragEvent.ACTION_DROP) { 3998 mDragDescription = null; 3999 try { 4000 Log.i(TAG, "Reporting drop result: " + result); 4001 mWindowSession.reportDropResult(mWindow, result); 4002 } catch (RemoteException e) { 4003 Log.e(TAG, "Unable to report drop result"); 4004 } 4005 } 4006 4007 // When the drag operation ends, release any local state object 4008 // that may have been in use 4009 if (what == DragEvent.ACTION_DRAG_ENDED) { 4010 setLocalDragState(null); 4011 } 4012 } 4013 } 4014 event.recycle(); 4015 } 4016 4017 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4018 if (mSeq != args.seq) { 4019 // The sequence has changed, so we need to update our value and make 4020 // sure to do a traversal afterward so the window manager is given our 4021 // most recent data. 4022 mSeq = args.seq; 4023 mAttachInfo.mForceReportNewAttributes = true; 4024 scheduleTraversals(); 4025 } 4026 if (mView == null) return; 4027 if (args.localChanges != 0) { 4028 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4029 } 4030 if (mAttachInfo != null) { 4031 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4032 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4033 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4034 mView.dispatchSystemUiVisibilityChanged(visibility); 4035 } 4036 } 4037 } 4038 4039 public void handleDispatchDoneAnimating() { 4040 if (mWindowsAnimating) { 4041 mWindowsAnimating = false; 4042 if (!mDirty.isEmpty() || mIsAnimating) { 4043 scheduleTraversals(); 4044 } 4045 } 4046 } 4047 4048 public void getLastTouchPoint(Point outLocation) { 4049 outLocation.x = (int) mLastTouchPoint.x; 4050 outLocation.y = (int) mLastTouchPoint.y; 4051 } 4052 4053 public void setDragFocus(View newDragTarget) { 4054 if (mCurrentDragView != newDragTarget) { 4055 mCurrentDragView = newDragTarget; 4056 } 4057 } 4058 4059 private AudioManager getAudioManager() { 4060 if (mView == null) { 4061 throw new IllegalStateException("getAudioManager called when there is no mView"); 4062 } 4063 if (mAudioManager == null) { 4064 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4065 } 4066 return mAudioManager; 4067 } 4068 4069 public AccessibilityInteractionController getAccessibilityInteractionController() { 4070 if (mView == null) { 4071 throw new IllegalStateException("getAccessibilityInteractionController" 4072 + " called when there is no mView"); 4073 } 4074 if (mAccessibilityInteractionController == null) { 4075 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4076 } 4077 return mAccessibilityInteractionController; 4078 } 4079 4080 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4081 boolean insetsPending) throws RemoteException { 4082 4083 float appScale = mAttachInfo.mApplicationScale; 4084 boolean restore = false; 4085 if (params != null && mTranslator != null) { 4086 restore = true; 4087 params.backup(); 4088 mTranslator.translateWindowLayout(params); 4089 } 4090 if (params != null) { 4091 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4092 } 4093 mPendingConfiguration.seq = 0; 4094 //Log.d(TAG, ">>>>>> CALLING relayout"); 4095 if (params != null && mOrigWindowType != params.type) { 4096 // For compatibility with old apps, don't crash here. 4097 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4098 Slog.w(TAG, "Window type can not be changed after " 4099 + "the window is added; ignoring change of " + mView); 4100 params.type = mOrigWindowType; 4101 } 4102 } 4103 int relayoutResult = mWindowSession.relayout( 4104 mWindow, mSeq, params, 4105 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4106 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4107 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4108 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4109 mPendingConfiguration, mSurface); 4110 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4111 if (restore) { 4112 params.restore(); 4113 } 4114 4115 if (mTranslator != null) { 4116 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4117 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4118 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4119 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4120 } 4121 return relayoutResult; 4122 } 4123 4124 /** 4125 * {@inheritDoc} 4126 */ 4127 public void playSoundEffect(int effectId) { 4128 checkThread(); 4129 4130 try { 4131 final AudioManager audioManager = getAudioManager(); 4132 4133 switch (effectId) { 4134 case SoundEffectConstants.CLICK: 4135 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4136 return; 4137 case SoundEffectConstants.NAVIGATION_DOWN: 4138 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4139 return; 4140 case SoundEffectConstants.NAVIGATION_LEFT: 4141 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4142 return; 4143 case SoundEffectConstants.NAVIGATION_RIGHT: 4144 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4145 return; 4146 case SoundEffectConstants.NAVIGATION_UP: 4147 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4148 return; 4149 default: 4150 throw new IllegalArgumentException("unknown effect id " + effectId + 4151 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4152 } 4153 } catch (IllegalStateException e) { 4154 // Exception thrown by getAudioManager() when mView is null 4155 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4156 e.printStackTrace(); 4157 } 4158 } 4159 4160 /** 4161 * {@inheritDoc} 4162 */ 4163 public boolean performHapticFeedback(int effectId, boolean always) { 4164 try { 4165 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4166 } catch (RemoteException e) { 4167 return false; 4168 } 4169 } 4170 4171 /** 4172 * {@inheritDoc} 4173 */ 4174 public View focusSearch(View focused, int direction) { 4175 checkThread(); 4176 if (!(mView instanceof ViewGroup)) { 4177 return null; 4178 } 4179 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4180 } 4181 4182 public void debug() { 4183 mView.debug(); 4184 } 4185 4186 public void dumpGfxInfo(int[] info) { 4187 info[0] = info[1] = 0; 4188 if (mView != null) { 4189 getGfxInfo(mView, info); 4190 } 4191 } 4192 4193 private static void getGfxInfo(View view, int[] info) { 4194 DisplayList displayList = view.mDisplayList; 4195 info[0]++; 4196 if (displayList != null) { 4197 info[1] += displayList.getSize(); 4198 } 4199 4200 if (view instanceof ViewGroup) { 4201 ViewGroup group = (ViewGroup) view; 4202 4203 int count = group.getChildCount(); 4204 for (int i = 0; i < count; i++) { 4205 getGfxInfo(group.getChildAt(i), info); 4206 } 4207 } 4208 } 4209 4210 public void die(boolean immediate) { 4211 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4212 // done by dispatchDetachedFromWindow will cause havoc on return. 4213 if (immediate && !mIsInTraversal) { 4214 doDie(); 4215 } else { 4216 if (!mIsDrawing) { 4217 destroyHardwareRenderer(); 4218 } else { 4219 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4220 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4221 } 4222 mHandler.sendEmptyMessage(MSG_DIE); 4223 } 4224 } 4225 4226 void doDie() { 4227 checkThread(); 4228 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4229 synchronized (this) { 4230 if (mAdded) { 4231 dispatchDetachedFromWindow(); 4232 } 4233 4234 if (mAdded && !mFirst) { 4235 invalidateDisplayLists(); 4236 destroyHardwareRenderer(); 4237 4238 if (mView != null) { 4239 int viewVisibility = mView.getVisibility(); 4240 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4241 if (mWindowAttributesChanged || viewVisibilityChanged) { 4242 // If layout params have been changed, first give them 4243 // to the window manager to make sure it has the correct 4244 // animation info. 4245 try { 4246 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4247 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4248 mWindowSession.finishDrawing(mWindow); 4249 } 4250 } catch (RemoteException e) { 4251 } 4252 } 4253 4254 mSurface.release(); 4255 } 4256 } 4257 4258 mAdded = false; 4259 } 4260 } 4261 4262 public void requestUpdateConfiguration(Configuration config) { 4263 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4264 mHandler.sendMessage(msg); 4265 } 4266 4267 public void loadSystemProperties() { 4268 mHandler.post(new Runnable() { 4269 @Override 4270 public void run() { 4271 // Profiling 4272 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4273 profileRendering(mAttachInfo.mHasWindowFocus); 4274 4275 // Hardware rendering 4276 if (mAttachInfo.mHardwareRenderer != null) { 4277 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4278 invalidate(); 4279 } 4280 } 4281 4282 // Layout debugging 4283 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4284 if (layout != mAttachInfo.mDebugLayout) { 4285 mAttachInfo.mDebugLayout = layout; 4286 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4287 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4288 } 4289 } 4290 } 4291 }); 4292 } 4293 4294 private void destroyHardwareRenderer() { 4295 AttachInfo attachInfo = mAttachInfo; 4296 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4297 4298 if (hardwareRenderer != null) { 4299 if (mView != null) { 4300 hardwareRenderer.destroyHardwareResources(mView); 4301 } 4302 hardwareRenderer.destroy(true); 4303 hardwareRenderer.setRequested(false); 4304 4305 attachInfo.mHardwareRenderer = null; 4306 attachInfo.mHardwareAccelerated = false; 4307 } 4308 } 4309 4310 public void dispatchFinishInputConnection(InputConnection connection) { 4311 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4312 mHandler.sendMessage(msg); 4313 } 4314 4315 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4316 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4317 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4318 + " contentInsets=" + contentInsets.toShortString() 4319 + " visibleInsets=" + visibleInsets.toShortString() 4320 + " reportDraw=" + reportDraw); 4321 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4322 if (mTranslator != null) { 4323 mTranslator.translateRectInScreenToAppWindow(frame); 4324 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4325 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4326 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4327 } 4328 SomeArgs args = SomeArgs.obtain(); 4329 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4330 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4331 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4332 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4333 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4334 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4335 msg.obj = args; 4336 mHandler.sendMessage(msg); 4337 } 4338 4339 public void dispatchMoved(int newX, int newY) { 4340 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4341 if (mTranslator != null) { 4342 PointF point = new PointF(newX, newY); 4343 mTranslator.translatePointInScreenToAppWindow(point); 4344 newX = (int) (point.x + 0.5); 4345 newY = (int) (point.y + 0.5); 4346 } 4347 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4348 mHandler.sendMessage(msg); 4349 } 4350 4351 /** 4352 * Represents a pending input event that is waiting in a queue. 4353 * 4354 * Input events are processed in serial order by the timestamp specified by 4355 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4356 * one input event to the application at a time and waits for the application 4357 * to finish handling it before delivering the next one. 4358 * 4359 * However, because the application or IME can synthesize and inject multiple 4360 * key events at a time without going through the input dispatcher, we end up 4361 * needing a queue on the application's side. 4362 */ 4363 private static final class QueuedInputEvent { 4364 public static final int FLAG_DELIVER_POST_IME = 1; 4365 4366 public QueuedInputEvent mNext; 4367 4368 public InputEvent mEvent; 4369 public InputEventReceiver mReceiver; 4370 public int mFlags; 4371 } 4372 4373 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4374 InputEventReceiver receiver, int flags) { 4375 QueuedInputEvent q = mQueuedInputEventPool; 4376 if (q != null) { 4377 mQueuedInputEventPoolSize -= 1; 4378 mQueuedInputEventPool = q.mNext; 4379 q.mNext = null; 4380 } else { 4381 q = new QueuedInputEvent(); 4382 } 4383 4384 q.mEvent = event; 4385 q.mReceiver = receiver; 4386 q.mFlags = flags; 4387 return q; 4388 } 4389 4390 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4391 q.mEvent = null; 4392 q.mReceiver = null; 4393 4394 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4395 mQueuedInputEventPoolSize += 1; 4396 q.mNext = mQueuedInputEventPool; 4397 mQueuedInputEventPool = q; 4398 } 4399 } 4400 4401 void enqueueInputEvent(InputEvent event) { 4402 enqueueInputEvent(event, null, 0, false); 4403 } 4404 4405 void enqueueInputEvent(InputEvent event, 4406 InputEventReceiver receiver, int flags, boolean processImmediately) { 4407 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4408 4409 // Always enqueue the input event in order, regardless of its time stamp. 4410 // We do this because the application or the IME may inject key events 4411 // in response to touch events and we want to ensure that the injected keys 4412 // are processed in the order they were received and we cannot trust that 4413 // the time stamp of injected events are monotonic. 4414 QueuedInputEvent last = mPendingInputEventTail; 4415 if (last == null) { 4416 mPendingInputEventHead = q; 4417 mPendingInputEventTail = q; 4418 } else { 4419 last.mNext = q; 4420 mPendingInputEventTail = q; 4421 } 4422 mPendingInputEventCount += 1; 4423 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4424 mPendingInputEventCount); 4425 4426 if (processImmediately) { 4427 doProcessInputEvents(); 4428 } else { 4429 scheduleProcessInputEvents(); 4430 } 4431 } 4432 4433 private void scheduleProcessInputEvents() { 4434 if (!mProcessInputEventsScheduled) { 4435 mProcessInputEventsScheduled = true; 4436 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4437 msg.setAsynchronous(true); 4438 mHandler.sendMessage(msg); 4439 } 4440 } 4441 4442 void doProcessInputEvents() { 4443 // Handle all of the available pending input events. Currently this will immediately 4444 // process all of the events it can until it encounters one that must go through the IME. 4445 // After that it will continue adding events to the active input queue but will wait for a 4446 // response from the IME, regardless of whether that particular event needs it or not, in 4447 // order to guarantee ordering consistency. This could be slightly improved by only 4448 // queueing events whose source has previously encountered something that needs to be 4449 // handled by the IME, and otherwise handling them immediately since we only need to 4450 // guarantee ordering within a given source. 4451 while (mPendingInputEventHead != null) { 4452 QueuedInputEvent q = mPendingInputEventHead; 4453 mPendingInputEventHead = q.mNext; 4454 if (mPendingInputEventHead == null) { 4455 mPendingInputEventTail = null; 4456 } 4457 q.mNext = null; 4458 4459 mPendingInputEventCount -= 1; 4460 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4461 mPendingInputEventCount); 4462 4463 int result = deliverInputEvent(q); 4464 4465 if (result == EVENT_HANDLED || result == EVENT_NOT_HANDLED) { 4466 finishInputEvent(q, result == EVENT_HANDLED); 4467 } else if (result == EVENT_PENDING_IME) { 4468 enqueueActiveInputEvent(q); 4469 } else { 4470 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4471 // If the IME decided not to handle this event, and we have no events already being 4472 // handled by the IME, go ahead and handle this one and then continue to the next 4473 // input event. Otherwise, queue it up and handle it after whatever in front of it 4474 // in the queue has been handled. 4475 if (mActiveInputEventHead == null) { 4476 result = deliverInputEventPostIme(q); 4477 finishInputEvent(q, result == EVENT_HANDLED); 4478 } else { 4479 enqueueActiveInputEvent(q); 4480 } 4481 } 4482 } 4483 4484 // We are done processing all input events that we can process right now 4485 // so we can clear the pending flag immediately. 4486 if (mProcessInputEventsScheduled) { 4487 mProcessInputEventsScheduled = false; 4488 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4489 } 4490 } 4491 4492 private void enqueueActiveInputEvent(QueuedInputEvent q) { 4493 if (mActiveInputEventHead == null) { 4494 mActiveInputEventHead = q; 4495 mActiveInputEventTail = q; 4496 } else { 4497 mActiveInputEventTail.mNext = q; 4498 mActiveInputEventTail = q; 4499 } 4500 mActiveInputEventCount += 1; 4501 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mActiveInputEventQueueLengthCounterName, 4502 mActiveInputEventCount); 4503 } 4504 4505 private QueuedInputEvent dequeueActiveInputEvent() { 4506 return dequeueActiveInputEvent(mActiveInputEventHead); 4507 } 4508 4509 4510 private QueuedInputEvent dequeueActiveInputEvent(QueuedInputEvent q) { 4511 QueuedInputEvent curr = mActiveInputEventHead; 4512 QueuedInputEvent prev = null; 4513 while (curr != null && curr != q) { 4514 prev = curr; 4515 curr = curr.mNext; 4516 } 4517 if (curr != null) { 4518 if (mActiveInputEventHead == curr) { 4519 mActiveInputEventHead = curr.mNext; 4520 } else { 4521 prev.mNext = curr.mNext; 4522 } 4523 if (mActiveInputEventTail == curr) { 4524 mActiveInputEventTail = prev; 4525 } 4526 curr.mNext = null; 4527 4528 mActiveInputEventCount -= 1; 4529 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mActiveInputEventQueueLengthCounterName, 4530 mActiveInputEventCount); 4531 } 4532 return curr; 4533 } 4534 4535 private QueuedInputEvent findActiveInputEvent(int seq) { 4536 QueuedInputEvent q = mActiveInputEventHead; 4537 while (q != null && q.mEvent.getSequenceNumber() != seq) { 4538 q = q.mNext; 4539 } 4540 return q; 4541 } 4542 4543 int dispatchImeInputEvent(QueuedInputEvent q) { 4544 if (mLastWasImTarget) { 4545 InputMethodManager imm = InputMethodManager.peekInstance(); 4546 if (imm != null) { 4547 final InputEvent event = q.mEvent; 4548 final int seq = event.getSequenceNumber(); 4549 if (DEBUG_IMF) 4550 Log.v(TAG, "Sending input event to IME: seq=" + seq + " event=" + event); 4551 return imm.dispatchInputEvent(mView.getContext(), seq, event, 4552 mInputMethodCallback); 4553 } 4554 } 4555 return EVENT_POST_IME; 4556 } 4557 4558 void handleImeFinishedEvent(int seq, boolean handled) { 4559 QueuedInputEvent q = findActiveInputEvent(seq); 4560 if (q != null) { 4561 if (DEBUG_IMF) { 4562 Log.v(TAG, "IME finished event: seq=" + seq 4563 + " handled=" + handled + " event=" + q); 4564 } 4565 4566 if (handled) { 4567 dequeueActiveInputEvent(q); 4568 finishInputEvent(q, true); 4569 } else { 4570 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4571 } 4572 4573 4574 // Flush all of the input events that are no longer waiting on the IME 4575 while (mActiveInputEventHead != null && (mActiveInputEventHead.mFlags & 4576 QueuedInputEvent.FLAG_DELIVER_POST_IME) != 0) { 4577 q = dequeueActiveInputEvent(); 4578 // If the window doesn't currently have input focus, then drop 4579 // this event. This could be an event that came back from the 4580 // IME dispatch but the window has lost focus in the meantime. 4581 handled = false; 4582 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4583 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4584 } else { 4585 handled = (deliverInputEventPostIme(q) == EVENT_HANDLED); 4586 } 4587 finishInputEvent(q, handled); 4588 } 4589 } else { 4590 if (DEBUG_IMF) { 4591 Log.v(TAG, "IME finished event: seq=" + seq 4592 + " handled=" + handled + ", event not found!"); 4593 } 4594 } 4595 4596 } 4597 4598 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4599 if (q.mReceiver != null) { 4600 q.mReceiver.finishInputEvent(q.mEvent, handled); 4601 } else { 4602 q.mEvent.recycleIfNeededAfterDispatch(); 4603 } 4604 4605 recycleQueuedInputEvent(q); 4606 } 4607 4608 private static boolean isTerminalInputEvent(InputEvent event) { 4609 if (event instanceof KeyEvent) { 4610 final KeyEvent keyEvent = (KeyEvent)event; 4611 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4612 } else { 4613 final MotionEvent motionEvent = (MotionEvent)event; 4614 final int action = motionEvent.getAction(); 4615 return action == MotionEvent.ACTION_UP 4616 || action == MotionEvent.ACTION_CANCEL 4617 || action == MotionEvent.ACTION_HOVER_EXIT; 4618 } 4619 } 4620 4621 void scheduleConsumeBatchedInput() { 4622 if (!mConsumeBatchedInputScheduled) { 4623 mConsumeBatchedInputScheduled = true; 4624 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4625 mConsumedBatchedInputRunnable, null); 4626 } 4627 } 4628 4629 void unscheduleConsumeBatchedInput() { 4630 if (mConsumeBatchedInputScheduled) { 4631 mConsumeBatchedInputScheduled = false; 4632 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4633 mConsumedBatchedInputRunnable, null); 4634 } 4635 } 4636 4637 void doConsumeBatchedInput(long frameTimeNanos) { 4638 if (mConsumeBatchedInputScheduled) { 4639 mConsumeBatchedInputScheduled = false; 4640 if (mInputEventReceiver != null) { 4641 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4642 } 4643 doProcessInputEvents(); 4644 } 4645 } 4646 4647 final class TraversalRunnable implements Runnable { 4648 @Override 4649 public void run() { 4650 doTraversal(); 4651 } 4652 } 4653 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4654 4655 final class WindowInputEventReceiver extends InputEventReceiver { 4656 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4657 super(inputChannel, looper); 4658 } 4659 4660 @Override 4661 public void onInputEvent(InputEvent event) { 4662 enqueueInputEvent(event, this, 0, true); 4663 } 4664 4665 @Override 4666 public void onBatchedInputEventPending() { 4667 scheduleConsumeBatchedInput(); 4668 } 4669 4670 @Override 4671 public void dispose() { 4672 unscheduleConsumeBatchedInput(); 4673 super.dispose(); 4674 } 4675 } 4676 WindowInputEventReceiver mInputEventReceiver; 4677 4678 final class ConsumeBatchedInputRunnable implements Runnable { 4679 @Override 4680 public void run() { 4681 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4682 } 4683 } 4684 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4685 new ConsumeBatchedInputRunnable(); 4686 boolean mConsumeBatchedInputScheduled; 4687 4688 final class InvalidateOnAnimationRunnable implements Runnable { 4689 private boolean mPosted; 4690 private ArrayList<View> mViews = new ArrayList<View>(); 4691 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4692 new ArrayList<AttachInfo.InvalidateInfo>(); 4693 private View[] mTempViews; 4694 private AttachInfo.InvalidateInfo[] mTempViewRects; 4695 4696 public void addView(View view) { 4697 synchronized (this) { 4698 mViews.add(view); 4699 postIfNeededLocked(); 4700 } 4701 } 4702 4703 public void addViewRect(AttachInfo.InvalidateInfo info) { 4704 synchronized (this) { 4705 mViewRects.add(info); 4706 postIfNeededLocked(); 4707 } 4708 } 4709 4710 public void removeView(View view) { 4711 synchronized (this) { 4712 mViews.remove(view); 4713 4714 for (int i = mViewRects.size(); i-- > 0; ) { 4715 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4716 if (info.target == view) { 4717 mViewRects.remove(i); 4718 info.recycle(); 4719 } 4720 } 4721 4722 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4723 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4724 mPosted = false; 4725 } 4726 } 4727 } 4728 4729 @Override 4730 public void run() { 4731 final int viewCount; 4732 final int viewRectCount; 4733 synchronized (this) { 4734 mPosted = false; 4735 4736 viewCount = mViews.size(); 4737 if (viewCount != 0) { 4738 mTempViews = mViews.toArray(mTempViews != null 4739 ? mTempViews : new View[viewCount]); 4740 mViews.clear(); 4741 } 4742 4743 viewRectCount = mViewRects.size(); 4744 if (viewRectCount != 0) { 4745 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4746 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4747 mViewRects.clear(); 4748 } 4749 } 4750 4751 for (int i = 0; i < viewCount; i++) { 4752 mTempViews[i].invalidate(); 4753 mTempViews[i] = null; 4754 } 4755 4756 for (int i = 0; i < viewRectCount; i++) { 4757 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4758 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4759 info.recycle(); 4760 } 4761 } 4762 4763 private void postIfNeededLocked() { 4764 if (!mPosted) { 4765 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4766 mPosted = true; 4767 } 4768 } 4769 } 4770 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4771 new InvalidateOnAnimationRunnable(); 4772 4773 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4774 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4775 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4776 } 4777 4778 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4779 long delayMilliseconds) { 4780 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4781 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4782 } 4783 4784 public void dispatchInvalidateOnAnimation(View view) { 4785 mInvalidateOnAnimationRunnable.addView(view); 4786 } 4787 4788 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4789 mInvalidateOnAnimationRunnable.addViewRect(info); 4790 } 4791 4792 public void enqueueDisplayList(DisplayList displayList) { 4793 mDisplayLists.add(displayList); 4794 } 4795 4796 public void cancelInvalidate(View view) { 4797 mHandler.removeMessages(MSG_INVALIDATE, view); 4798 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4799 // them to the pool 4800 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4801 mInvalidateOnAnimationRunnable.removeView(view); 4802 } 4803 4804 public void dispatchKey(KeyEvent event) { 4805 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4806 msg.setAsynchronous(true); 4807 mHandler.sendMessage(msg); 4808 } 4809 4810 public void dispatchKeyFromIme(KeyEvent event) { 4811 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4812 msg.setAsynchronous(true); 4813 mHandler.sendMessage(msg); 4814 } 4815 4816 public void dispatchUnhandledKey(KeyEvent event) { 4817 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4818 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4819 final int keyCode = event.getKeyCode(); 4820 final int metaState = event.getMetaState(); 4821 4822 // Check for fallback actions specified by the key character map. 4823 KeyCharacterMap.FallbackAction fallbackAction = 4824 kcm.getFallbackAction(keyCode, metaState); 4825 if (fallbackAction != null) { 4826 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4827 KeyEvent fallbackEvent = KeyEvent.obtain( 4828 event.getDownTime(), event.getEventTime(), 4829 event.getAction(), fallbackAction.keyCode, 4830 event.getRepeatCount(), fallbackAction.metaState, 4831 event.getDeviceId(), event.getScanCode(), 4832 flags, event.getSource(), null); 4833 fallbackAction.recycle(); 4834 4835 dispatchKey(fallbackEvent); 4836 } 4837 } 4838 } 4839 4840 public void dispatchAppVisibility(boolean visible) { 4841 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4842 msg.arg1 = visible ? 1 : 0; 4843 mHandler.sendMessage(msg); 4844 } 4845 4846 public void dispatchScreenStateChange(boolean on) { 4847 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4848 msg.arg1 = on ? 1 : 0; 4849 mHandler.sendMessage(msg); 4850 } 4851 4852 public void dispatchGetNewSurface() { 4853 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4854 mHandler.sendMessage(msg); 4855 } 4856 4857 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4858 Message msg = Message.obtain(); 4859 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4860 msg.arg1 = hasFocus ? 1 : 0; 4861 msg.arg2 = inTouchMode ? 1 : 0; 4862 mHandler.sendMessage(msg); 4863 } 4864 4865 public void dispatchCloseSystemDialogs(String reason) { 4866 Message msg = Message.obtain(); 4867 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4868 msg.obj = reason; 4869 mHandler.sendMessage(msg); 4870 } 4871 4872 public void dispatchDragEvent(DragEvent event) { 4873 final int what; 4874 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4875 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4876 mHandler.removeMessages(what); 4877 } else { 4878 what = MSG_DISPATCH_DRAG_EVENT; 4879 } 4880 Message msg = mHandler.obtainMessage(what, event); 4881 mHandler.sendMessage(msg); 4882 } 4883 4884 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4885 int localValue, int localChanges) { 4886 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4887 args.seq = seq; 4888 args.globalVisibility = globalVisibility; 4889 args.localValue = localValue; 4890 args.localChanges = localChanges; 4891 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4892 } 4893 4894 public void dispatchDoneAnimating() { 4895 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4896 } 4897 4898 public void dispatchCheckFocus() { 4899 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4900 // This will result in a call to checkFocus() below. 4901 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4902 } 4903 } 4904 4905 /** 4906 * Post a callback to send a 4907 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4908 * This event is send at most once every 4909 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4910 */ 4911 private void postSendWindowContentChangedCallback(View source) { 4912 if (mSendWindowContentChangedAccessibilityEvent == null) { 4913 mSendWindowContentChangedAccessibilityEvent = 4914 new SendWindowContentChangedAccessibilityEvent(); 4915 } 4916 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4917 if (oldSource == null) { 4918 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4919 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4920 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4921 } else { 4922 mSendWindowContentChangedAccessibilityEvent.mSource = 4923 getCommonPredecessor(oldSource, source); 4924 } 4925 } 4926 4927 /** 4928 * Remove a posted callback to send a 4929 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4930 */ 4931 private void removeSendWindowContentChangedCallback() { 4932 if (mSendWindowContentChangedAccessibilityEvent != null) { 4933 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4934 } 4935 } 4936 4937 public boolean showContextMenuForChild(View originalView) { 4938 return false; 4939 } 4940 4941 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4942 return null; 4943 } 4944 4945 public void createContextMenu(ContextMenu menu) { 4946 } 4947 4948 public void childDrawableStateChanged(View child) { 4949 } 4950 4951 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4952 if (mView == null) { 4953 return false; 4954 } 4955 // Intercept accessibility focus events fired by virtual nodes to keep 4956 // track of accessibility focus position in such nodes. 4957 final int eventType = event.getEventType(); 4958 switch (eventType) { 4959 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4960 final long sourceNodeId = event.getSourceNodeId(); 4961 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4962 sourceNodeId); 4963 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4964 if (source != null) { 4965 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4966 if (provider != null) { 4967 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4968 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4969 setAccessibilityFocus(source, node); 4970 } 4971 } 4972 } break; 4973 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4974 final long sourceNodeId = event.getSourceNodeId(); 4975 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4976 sourceNodeId); 4977 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4978 if (source != null) { 4979 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4980 if (provider != null) { 4981 setAccessibilityFocus(null, null); 4982 } 4983 } 4984 } break; 4985 } 4986 mAccessibilityManager.sendAccessibilityEvent(event); 4987 return true; 4988 } 4989 4990 @Override 4991 public void childAccessibilityStateChanged(View child) { 4992 postSendWindowContentChangedCallback(child); 4993 } 4994 4995 @Override 4996 public boolean canResolveLayoutDirection() { 4997 return true; 4998 } 4999 5000 @Override 5001 public boolean isLayoutDirectionResolved() { 5002 return true; 5003 } 5004 5005 @Override 5006 public int getLayoutDirection() { 5007 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 5008 } 5009 5010 @Override 5011 public boolean canResolveTextDirection() { 5012 return true; 5013 } 5014 5015 @Override 5016 public boolean isTextDirectionResolved() { 5017 return true; 5018 } 5019 5020 @Override 5021 public int getTextDirection() { 5022 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 5023 } 5024 5025 @Override 5026 public boolean canResolveTextAlignment() { 5027 return true; 5028 } 5029 5030 @Override 5031 public boolean isTextAlignmentResolved() { 5032 return true; 5033 } 5034 5035 @Override 5036 public int getTextAlignment() { 5037 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5038 } 5039 5040 private View getCommonPredecessor(View first, View second) { 5041 if (mAttachInfo != null) { 5042 if (mTempHashSet == null) { 5043 mTempHashSet = new HashSet<View>(); 5044 } 5045 HashSet<View> seen = mTempHashSet; 5046 seen.clear(); 5047 View firstCurrent = first; 5048 while (firstCurrent != null) { 5049 seen.add(firstCurrent); 5050 ViewParent firstCurrentParent = firstCurrent.mParent; 5051 if (firstCurrentParent instanceof View) { 5052 firstCurrent = (View) firstCurrentParent; 5053 } else { 5054 firstCurrent = null; 5055 } 5056 } 5057 View secondCurrent = second; 5058 while (secondCurrent != null) { 5059 if (seen.contains(secondCurrent)) { 5060 seen.clear(); 5061 return secondCurrent; 5062 } 5063 ViewParent secondCurrentParent = secondCurrent.mParent; 5064 if (secondCurrentParent instanceof View) { 5065 secondCurrent = (View) secondCurrentParent; 5066 } else { 5067 secondCurrent = null; 5068 } 5069 } 5070 seen.clear(); 5071 } 5072 return null; 5073 } 5074 5075 void checkThread() { 5076 if (mThread != Thread.currentThread()) { 5077 throw new CalledFromWrongThreadException( 5078 "Only the original thread that created a view hierarchy can touch its views."); 5079 } 5080 } 5081 5082 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5083 // ViewAncestor never intercepts touch event, so this can be a no-op 5084 } 5085 5086 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5087 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5088 if (rectangle != null) { 5089 mTempRect.set(rectangle); 5090 mTempRect.offset(0, -mCurScrollY); 5091 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5092 try { 5093 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5094 } catch (RemoteException re) { 5095 /* ignore */ 5096 } 5097 } 5098 return scrolled; 5099 } 5100 5101 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5102 // Do nothing. 5103 } 5104 5105 class TakenSurfaceHolder extends BaseSurfaceHolder { 5106 @Override 5107 public boolean onAllowLockCanvas() { 5108 return mDrawingAllowed; 5109 } 5110 5111 @Override 5112 public void onRelayoutContainer() { 5113 // Not currently interesting -- from changing between fixed and layout size. 5114 } 5115 5116 public void setFormat(int format) { 5117 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5118 } 5119 5120 public void setType(int type) { 5121 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5122 } 5123 5124 @Override 5125 public void onUpdateSurface() { 5126 // We take care of format and type changes on our own. 5127 throw new IllegalStateException("Shouldn't be here"); 5128 } 5129 5130 public boolean isCreating() { 5131 return mIsCreating; 5132 } 5133 5134 @Override 5135 public void setFixedSize(int width, int height) { 5136 throw new UnsupportedOperationException( 5137 "Currently only support sizing from layout"); 5138 } 5139 5140 public void setKeepScreenOn(boolean screenOn) { 5141 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5142 } 5143 } 5144 5145 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5146 private WeakReference<ViewRootImpl> mViewAncestor; 5147 5148 public InputMethodCallback(ViewRootImpl viewAncestor) { 5149 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5150 } 5151 5152 @Override 5153 public void finishedEvent(int seq, boolean handled) { 5154 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5155 if (viewAncestor != null) { 5156 viewAncestor.handleImeFinishedEvent(seq, handled); 5157 } 5158 } 5159 } 5160 5161 static class W extends IWindow.Stub { 5162 private final WeakReference<ViewRootImpl> mViewAncestor; 5163 private final IWindowSession mWindowSession; 5164 5165 W(ViewRootImpl viewAncestor) { 5166 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5167 mWindowSession = viewAncestor.mWindowSession; 5168 } 5169 5170 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5171 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5172 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5173 if (viewAncestor != null) { 5174 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5175 visibleInsets, reportDraw, newConfig); 5176 } 5177 } 5178 5179 @Override 5180 public void moved(int newX, int newY) { 5181 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5182 if (viewAncestor != null) { 5183 viewAncestor.dispatchMoved(newX, newY); 5184 } 5185 } 5186 5187 public void dispatchAppVisibility(boolean visible) { 5188 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5189 if (viewAncestor != null) { 5190 viewAncestor.dispatchAppVisibility(visible); 5191 } 5192 } 5193 5194 public void dispatchScreenState(boolean on) { 5195 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5196 if (viewAncestor != null) { 5197 viewAncestor.dispatchScreenStateChange(on); 5198 } 5199 } 5200 5201 public void dispatchGetNewSurface() { 5202 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5203 if (viewAncestor != null) { 5204 viewAncestor.dispatchGetNewSurface(); 5205 } 5206 } 5207 5208 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5209 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5210 if (viewAncestor != null) { 5211 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5212 } 5213 } 5214 5215 private static int checkCallingPermission(String permission) { 5216 try { 5217 return ActivityManagerNative.getDefault().checkPermission( 5218 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5219 } catch (RemoteException e) { 5220 return PackageManager.PERMISSION_DENIED; 5221 } 5222 } 5223 5224 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5225 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5226 if (viewAncestor != null) { 5227 final View view = viewAncestor.mView; 5228 if (view != null) { 5229 if (checkCallingPermission(Manifest.permission.DUMP) != 5230 PackageManager.PERMISSION_GRANTED) { 5231 throw new SecurityException("Insufficient permissions to invoke" 5232 + " executeCommand() from pid=" + Binder.getCallingPid() 5233 + ", uid=" + Binder.getCallingUid()); 5234 } 5235 5236 OutputStream clientStream = null; 5237 try { 5238 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5239 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5240 } catch (IOException e) { 5241 e.printStackTrace(); 5242 } finally { 5243 if (clientStream != null) { 5244 try { 5245 clientStream.close(); 5246 } catch (IOException e) { 5247 e.printStackTrace(); 5248 } 5249 } 5250 } 5251 } 5252 } 5253 } 5254 5255 public void closeSystemDialogs(String reason) { 5256 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5257 if (viewAncestor != null) { 5258 viewAncestor.dispatchCloseSystemDialogs(reason); 5259 } 5260 } 5261 5262 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5263 boolean sync) { 5264 if (sync) { 5265 try { 5266 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5267 } catch (RemoteException e) { 5268 } 5269 } 5270 } 5271 5272 public void dispatchWallpaperCommand(String action, int x, int y, 5273 int z, Bundle extras, boolean sync) { 5274 if (sync) { 5275 try { 5276 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5277 } catch (RemoteException e) { 5278 } 5279 } 5280 } 5281 5282 /* Drag/drop */ 5283 public void dispatchDragEvent(DragEvent event) { 5284 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5285 if (viewAncestor != null) { 5286 viewAncestor.dispatchDragEvent(event); 5287 } 5288 } 5289 5290 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5291 int localValue, int localChanges) { 5292 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5293 if (viewAncestor != null) { 5294 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5295 localValue, localChanges); 5296 } 5297 } 5298 5299 public void doneAnimating() { 5300 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5301 if (viewAncestor != null) { 5302 viewAncestor.dispatchDoneAnimating(); 5303 } 5304 } 5305 } 5306 5307 /** 5308 * Maintains state information for a single trackball axis, generating 5309 * discrete (DPAD) movements based on raw trackball motion. 5310 */ 5311 static final class TrackballAxis { 5312 /** 5313 * The maximum amount of acceleration we will apply. 5314 */ 5315 static final float MAX_ACCELERATION = 20; 5316 5317 /** 5318 * The maximum amount of time (in milliseconds) between events in order 5319 * for us to consider the user to be doing fast trackball movements, 5320 * and thus apply an acceleration. 5321 */ 5322 static final long FAST_MOVE_TIME = 150; 5323 5324 /** 5325 * Scaling factor to the time (in milliseconds) between events to how 5326 * much to multiple/divide the current acceleration. When movement 5327 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5328 * FAST_MOVE_TIME it divides it. 5329 */ 5330 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5331 5332 float position; 5333 float absPosition; 5334 float acceleration = 1; 5335 long lastMoveTime = 0; 5336 int step; 5337 int dir; 5338 int nonAccelMovement; 5339 5340 void reset(int _step) { 5341 position = 0; 5342 acceleration = 1; 5343 lastMoveTime = 0; 5344 step = _step; 5345 dir = 0; 5346 } 5347 5348 /** 5349 * Add trackball movement into the state. If the direction of movement 5350 * has been reversed, the state is reset before adding the 5351 * movement (so that you don't have to compensate for any previously 5352 * collected movement before see the result of the movement in the 5353 * new direction). 5354 * 5355 * @return Returns the absolute value of the amount of movement 5356 * collected so far. 5357 */ 5358 float collect(float off, long time, String axis) { 5359 long normTime; 5360 if (off > 0) { 5361 normTime = (long)(off * FAST_MOVE_TIME); 5362 if (dir < 0) { 5363 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5364 position = 0; 5365 step = 0; 5366 acceleration = 1; 5367 lastMoveTime = 0; 5368 } 5369 dir = 1; 5370 } else if (off < 0) { 5371 normTime = (long)((-off) * FAST_MOVE_TIME); 5372 if (dir > 0) { 5373 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5374 position = 0; 5375 step = 0; 5376 acceleration = 1; 5377 lastMoveTime = 0; 5378 } 5379 dir = -1; 5380 } else { 5381 normTime = 0; 5382 } 5383 5384 // The number of milliseconds between each movement that is 5385 // considered "normal" and will not result in any acceleration 5386 // or deceleration, scaled by the offset we have here. 5387 if (normTime > 0) { 5388 long delta = time - lastMoveTime; 5389 lastMoveTime = time; 5390 float acc = acceleration; 5391 if (delta < normTime) { 5392 // The user is scrolling rapidly, so increase acceleration. 5393 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5394 if (scale > 1) acc *= scale; 5395 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5396 + off + " normTime=" + normTime + " delta=" + delta 5397 + " scale=" + scale + " acc=" + acc); 5398 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5399 } else { 5400 // The user is scrolling slowly, so decrease acceleration. 5401 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5402 if (scale > 1) acc /= scale; 5403 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5404 + off + " normTime=" + normTime + " delta=" + delta 5405 + " scale=" + scale + " acc=" + acc); 5406 acceleration = acc > 1 ? acc : 1; 5407 } 5408 } 5409 position += off; 5410 return (absPosition = Math.abs(position)); 5411 } 5412 5413 /** 5414 * Generate the number of discrete movement events appropriate for 5415 * the currently collected trackball movement. 5416 * 5417 * @param precision The minimum movement required to generate the 5418 * first discrete movement. 5419 * 5420 * @return Returns the number of discrete movements, either positive 5421 * or negative, or 0 if there is not enough trackball movement yet 5422 * for a discrete movement. 5423 */ 5424 int generate(float precision) { 5425 int movement = 0; 5426 nonAccelMovement = 0; 5427 do { 5428 final int dir = position >= 0 ? 1 : -1; 5429 switch (step) { 5430 // If we are going to execute the first step, then we want 5431 // to do this as soon as possible instead of waiting for 5432 // a full movement, in order to make things look responsive. 5433 case 0: 5434 if (absPosition < precision) { 5435 return movement; 5436 } 5437 movement += dir; 5438 nonAccelMovement += dir; 5439 step = 1; 5440 break; 5441 // If we have generated the first movement, then we need 5442 // to wait for the second complete trackball motion before 5443 // generating the second discrete movement. 5444 case 1: 5445 if (absPosition < 2) { 5446 return movement; 5447 } 5448 movement += dir; 5449 nonAccelMovement += dir; 5450 position += dir > 0 ? -2 : 2; 5451 absPosition = Math.abs(position); 5452 step = 2; 5453 break; 5454 // After the first two, we generate discrete movements 5455 // consistently with the trackball, applying an acceleration 5456 // if the trackball is moving quickly. This is a simple 5457 // acceleration on top of what we already compute based 5458 // on how quickly the wheel is being turned, to apply 5459 // a longer increasing acceleration to continuous movement 5460 // in one direction. 5461 default: 5462 if (absPosition < 1) { 5463 return movement; 5464 } 5465 movement += dir; 5466 position += dir >= 0 ? -1 : 1; 5467 absPosition = Math.abs(position); 5468 float acc = acceleration; 5469 acc *= 1.1f; 5470 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5471 break; 5472 } 5473 } while (true); 5474 } 5475 } 5476 5477 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5478 public CalledFromWrongThreadException(String msg) { 5479 super(msg); 5480 } 5481 } 5482 5483 private SurfaceHolder mHolder = new SurfaceHolder() { 5484 // we only need a SurfaceHolder for opengl. it would be nice 5485 // to implement everything else though, especially the callback 5486 // support (opengl doesn't make use of it right now, but eventually 5487 // will). 5488 public Surface getSurface() { 5489 return mSurface; 5490 } 5491 5492 public boolean isCreating() { 5493 return false; 5494 } 5495 5496 public void addCallback(Callback callback) { 5497 } 5498 5499 public void removeCallback(Callback callback) { 5500 } 5501 5502 public void setFixedSize(int width, int height) { 5503 } 5504 5505 public void setSizeFromLayout() { 5506 } 5507 5508 public void setFormat(int format) { 5509 } 5510 5511 public void setType(int type) { 5512 } 5513 5514 public void setKeepScreenOn(boolean screenOn) { 5515 } 5516 5517 public Canvas lockCanvas() { 5518 return null; 5519 } 5520 5521 public Canvas lockCanvas(Rect dirty) { 5522 return null; 5523 } 5524 5525 public void unlockCanvasAndPost(Canvas canvas) { 5526 } 5527 public Rect getSurfaceFrame() { 5528 return null; 5529 } 5530 }; 5531 5532 static RunQueue getRunQueue() { 5533 RunQueue rq = sRunQueues.get(); 5534 if (rq != null) { 5535 return rq; 5536 } 5537 rq = new RunQueue(); 5538 sRunQueues.set(rq); 5539 return rq; 5540 } 5541 5542 /** 5543 * The run queue is used to enqueue pending work from Views when no Handler is 5544 * attached. The work is executed during the next call to performTraversals on 5545 * the thread. 5546 * @hide 5547 */ 5548 static final class RunQueue { 5549 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5550 5551 void post(Runnable action) { 5552 postDelayed(action, 0); 5553 } 5554 5555 void postDelayed(Runnable action, long delayMillis) { 5556 HandlerAction handlerAction = new HandlerAction(); 5557 handlerAction.action = action; 5558 handlerAction.delay = delayMillis; 5559 5560 synchronized (mActions) { 5561 mActions.add(handlerAction); 5562 } 5563 } 5564 5565 void removeCallbacks(Runnable action) { 5566 final HandlerAction handlerAction = new HandlerAction(); 5567 handlerAction.action = action; 5568 5569 synchronized (mActions) { 5570 final ArrayList<HandlerAction> actions = mActions; 5571 5572 while (actions.remove(handlerAction)) { 5573 // Keep going 5574 } 5575 } 5576 } 5577 5578 void executeActions(Handler handler) { 5579 synchronized (mActions) { 5580 final ArrayList<HandlerAction> actions = mActions; 5581 final int count = actions.size(); 5582 5583 for (int i = 0; i < count; i++) { 5584 final HandlerAction handlerAction = actions.get(i); 5585 handler.postDelayed(handlerAction.action, handlerAction.delay); 5586 } 5587 5588 actions.clear(); 5589 } 5590 } 5591 5592 private static class HandlerAction { 5593 Runnable action; 5594 long delay; 5595 5596 @Override 5597 public boolean equals(Object o) { 5598 if (this == o) return true; 5599 if (o == null || getClass() != o.getClass()) return false; 5600 5601 HandlerAction that = (HandlerAction) o; 5602 return !(action != null ? !action.equals(that.action) : that.action != null); 5603 5604 } 5605 5606 @Override 5607 public int hashCode() { 5608 int result = action != null ? action.hashCode() : 0; 5609 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5610 return result; 5611 } 5612 } 5613 } 5614 5615 /** 5616 * Class for managing the accessibility interaction connection 5617 * based on the global accessibility state. 5618 */ 5619 final class AccessibilityInteractionConnectionManager 5620 implements AccessibilityStateChangeListener { 5621 public void onAccessibilityStateChanged(boolean enabled) { 5622 if (enabled) { 5623 ensureConnection(); 5624 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5625 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5626 View focusedView = mView.findFocus(); 5627 if (focusedView != null && focusedView != mView) { 5628 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5629 } 5630 } 5631 } else { 5632 ensureNoConnection(); 5633 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5634 } 5635 } 5636 5637 public void ensureConnection() { 5638 if (mAttachInfo != null) { 5639 final boolean registered = 5640 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5641 if (!registered) { 5642 mAttachInfo.mAccessibilityWindowId = 5643 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5644 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5645 } 5646 } 5647 } 5648 5649 public void ensureNoConnection() { 5650 final boolean registered = 5651 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5652 if (registered) { 5653 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5654 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5655 } 5656 } 5657 } 5658 5659 /** 5660 * This class is an interface this ViewAncestor provides to the 5661 * AccessibilityManagerService to the latter can interact with 5662 * the view hierarchy in this ViewAncestor. 5663 */ 5664 static final class AccessibilityInteractionConnection 5665 extends IAccessibilityInteractionConnection.Stub { 5666 private final WeakReference<ViewRootImpl> mViewRootImpl; 5667 5668 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5669 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5670 } 5671 5672 @Override 5673 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5674 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5675 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5676 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5677 if (viewRootImpl != null && viewRootImpl.mView != null) { 5678 viewRootImpl.getAccessibilityInteractionController() 5679 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5680 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5681 spec); 5682 } else { 5683 // We cannot make the call and notify the caller so it does not wait. 5684 try { 5685 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5686 } catch (RemoteException re) { 5687 /* best effort - ignore */ 5688 } 5689 } 5690 } 5691 5692 @Override 5693 public void performAccessibilityAction(long accessibilityNodeId, int action, 5694 Bundle arguments, int interactionId, 5695 IAccessibilityInteractionConnectionCallback callback, int flags, 5696 int interogatingPid, long interrogatingTid) { 5697 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5698 if (viewRootImpl != null && viewRootImpl.mView != null) { 5699 viewRootImpl.getAccessibilityInteractionController() 5700 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5701 interactionId, callback, flags, interogatingPid, interrogatingTid); 5702 } else { 5703 // We cannot make the call and notify the caller so it does not wait. 5704 try { 5705 callback.setPerformAccessibilityActionResult(false, interactionId); 5706 } catch (RemoteException re) { 5707 /* best effort - ignore */ 5708 } 5709 } 5710 } 5711 5712 @Override 5713 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5714 String viewId, int interactionId, 5715 IAccessibilityInteractionConnectionCallback callback, int flags, 5716 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5717 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5718 if (viewRootImpl != null && viewRootImpl.mView != null) { 5719 viewRootImpl.getAccessibilityInteractionController() 5720 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5721 viewId, interactionId, callback, flags, interrogatingPid, 5722 interrogatingTid, spec); 5723 } else { 5724 // We cannot make the call and notify the caller so it does not wait. 5725 try { 5726 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5727 } catch (RemoteException re) { 5728 /* best effort - ignore */ 5729 } 5730 } 5731 } 5732 5733 @Override 5734 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5735 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5736 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5737 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5738 if (viewRootImpl != null && viewRootImpl.mView != null) { 5739 viewRootImpl.getAccessibilityInteractionController() 5740 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5741 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5742 spec); 5743 } else { 5744 // We cannot make the call and notify the caller so it does not wait. 5745 try { 5746 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5747 } catch (RemoteException re) { 5748 /* best effort - ignore */ 5749 } 5750 } 5751 } 5752 5753 @Override 5754 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5755 IAccessibilityInteractionConnectionCallback callback, int flags, 5756 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5757 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5758 if (viewRootImpl != null && viewRootImpl.mView != null) { 5759 viewRootImpl.getAccessibilityInteractionController() 5760 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5761 flags, interrogatingPid, interrogatingTid, spec); 5762 } else { 5763 // We cannot make the call and notify the caller so it does not wait. 5764 try { 5765 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5766 } catch (RemoteException re) { 5767 /* best effort - ignore */ 5768 } 5769 } 5770 } 5771 5772 @Override 5773 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5774 IAccessibilityInteractionConnectionCallback callback, int flags, 5775 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5776 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5777 if (viewRootImpl != null && viewRootImpl.mView != null) { 5778 viewRootImpl.getAccessibilityInteractionController() 5779 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5780 callback, flags, interrogatingPid, interrogatingTid, spec); 5781 } else { 5782 // We cannot make the call and notify the caller so it does not wait. 5783 try { 5784 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5785 } catch (RemoteException re) { 5786 /* best effort - ignore */ 5787 } 5788 } 5789 } 5790 } 5791 5792 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5793 public View mSource; 5794 5795 public void run() { 5796 if (mSource != null) { 5797 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5798 mSource.resetAccessibilityStateChanged(); 5799 mSource = null; 5800 } 5801 } 5802 } 5803} 5804