ViewRootImpl.java revision c99d3c1fd618c1f64103b4f39dd95330309be5a3
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 final Rect mPreviousDirty = new Rect(); 201 boolean mIsAnimating; 202 203 CompatibilityInfo.Translator mTranslator; 204 205 final View.AttachInfo mAttachInfo; 206 InputChannel mInputChannel; 207 InputQueue.Callback mInputQueueCallback; 208 InputQueue mInputQueue; 209 FallbackEventHandler mFallbackEventHandler; 210 Choreographer mChoreographer; 211 212 final Rect mTempRect; // used in the transaction to not thrash the heap. 213 final Rect mVisRect; // used to retrieve visible rect of focused view. 214 215 boolean mTraversalScheduled; 216 int mTraversalBarrier; 217 boolean mWillDrawSoon; 218 /** Set to true while in performTraversals for detecting when die(true) is called from internal 219 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 220 boolean mIsInTraversal; 221 boolean mFitSystemWindowsRequested; 222 boolean mLayoutRequested; 223 boolean mFirst; 224 boolean mReportNextDraw; 225 boolean mFullRedrawNeeded; 226 boolean mNewSurfaceNeeded; 227 boolean mHasHadWindowFocus; 228 boolean mLastWasImTarget; 229 boolean mWindowsAnimating; 230 boolean mIsDrawing; 231 int mLastSystemUiVisibility; 232 int mClientWindowLayoutFlags; 233 boolean mLastOverscanRequested; 234 235 /** Event was not handled and is finished. 236 * @hide */ 237 public static final int EVENT_NOT_HANDLED = 0; 238 /** Event was handled and is finished. 239 * @hide */ 240 public static final int EVENT_HANDLED = 1; 241 /** Event is waiting on the IME. 242 * @hide */ 243 public static final int EVENT_PENDING_IME = 2; 244 /** Event requires post-IME dispatch. 245 * @hide */ 246 public static final int EVENT_POST_IME = 3; 247 248 // Pool of queued input events. 249 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 250 private QueuedInputEvent mQueuedInputEventPool; 251 private int mQueuedInputEventPoolSize; 252 253 /* Input event queue. 254 * Pending input events are input events waiting to be handled by the application. Current 255 * input events are input events which are being handled but are waiting on some action by the 256 * IME, even if they themselves may not need to be handled by the IME. 257 */ 258 QueuedInputEvent mPendingInputEventHead; 259 QueuedInputEvent mPendingInputEventTail; 260 int mPendingInputEventCount; 261 QueuedInputEvent mActiveInputEventHead; 262 QueuedInputEvent mActiveInputEventTail; 263 int mActiveInputEventCount; 264 boolean mProcessInputEventsScheduled; 265 String mPendingInputEventQueueLengthCounterName = "pq"; 266 String mActiveInputEventQueueLengthCounterName = "aq"; 267 268 boolean mWindowAttributesChanged = false; 269 int mWindowAttributesChangesFlag = 0; 270 271 // These can be accessed by any thread, must be protected with a lock. 272 // Surface can never be reassigned or cleared (use Surface.clear()). 273 private final Surface mSurface = new Surface(); 274 275 boolean mAdded; 276 boolean mAddedTouchMode; 277 278 final CompatibilityInfoHolder mCompatibilityInfo; 279 280 // These are accessed by multiple threads. 281 final Rect mWinFrame; // frame given by window manager. 282 283 final Rect mPendingOverscanInsets = new Rect(); 284 final Rect mPendingVisibleInsets = new Rect(); 285 final Rect mPendingContentInsets = new Rect(); 286 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 287 = new ViewTreeObserver.InternalInsetsInfo(); 288 289 final Rect mFitSystemWindowsInsets = new Rect(); 290 291 final Configuration mLastConfiguration = new Configuration(); 292 final Configuration mPendingConfiguration = new Configuration(); 293 294 boolean mScrollMayChange; 295 int mSoftInputMode; 296 WeakReference<View> mLastScrolledFocus; 297 int mScrollY; 298 int mCurScrollY; 299 Scroller mScroller; 300 HardwareLayer mResizeBuffer; 301 long mResizeBufferStartTime; 302 int mResizeBufferDuration; 303 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 304 private ArrayList<LayoutTransition> mPendingTransitions; 305 306 final ViewConfiguration mViewConfiguration; 307 308 /* Drag/drop */ 309 ClipDescription mDragDescription; 310 View mCurrentDragView; 311 volatile Object mLocalDragState; 312 final PointF mDragPoint = new PointF(); 313 final PointF mLastTouchPoint = new PointF(); 314 315 private boolean mProfileRendering; 316 private Choreographer.FrameCallback mRenderProfiler; 317 private boolean mRenderProfilingEnabled; 318 319 // Variables to track frames per second, enabled via DEBUG_FPS flag 320 private long mFpsStartTime = -1; 321 private long mFpsPrevTime = -1; 322 private int mFpsNumFrames; 323 324 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 325 326 /** 327 * see {@link #playSoundEffect(int)} 328 */ 329 AudioManager mAudioManager; 330 331 final AccessibilityManager mAccessibilityManager; 332 333 AccessibilityInteractionController mAccessibilityInteractionController; 334 335 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 336 337 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 338 339 HashSet<View> mTempHashSet; 340 341 private final int mDensity; 342 private final int mNoncompatDensity; 343 344 private boolean mInLayout = false; 345 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 346 boolean mHandlingLayoutInLayoutRequest = false; 347 348 private int mViewLayoutDirectionInitial; 349 350 /** 351 * Consistency verifier for debugging purposes. 352 */ 353 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 354 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 355 new InputEventConsistencyVerifier(this, 0) : null; 356 357 static final class SystemUiVisibilityInfo { 358 int seq; 359 int globalVisibility; 360 int localValue; 361 int localChanges; 362 } 363 364 public ViewRootImpl(Context context, Display display) { 365 super(); 366 367 if (MEASURE_LATENCY) { 368 if (lt == null) { 369 lt = new LatencyTimer(100, 1000); 370 } 371 } 372 373 // Initialize the statics when this class is first instantiated. This is 374 // done here instead of in the static block because Zygote does not 375 // allow the spawning of threads. 376 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 377 mDisplay = display; 378 mBasePackageName = context.getBasePackageName(); 379 380 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 381 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 382 383 mThread = Thread.currentThread(); 384 mLocation = new WindowLeaked(null); 385 mLocation.fillInStackTrace(); 386 mWidth = -1; 387 mHeight = -1; 388 mDirty = new Rect(); 389 mTempRect = new Rect(); 390 mVisRect = new Rect(); 391 mWinFrame = new Rect(); 392 mWindow = new W(this); 393 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 394 mInputMethodCallback = new InputMethodCallback(this); 395 mViewVisibility = View.GONE; 396 mTransparentRegion = new Region(); 397 mPreviousTransparentRegion = new Region(); 398 mFirst = true; // true for the first time the view is added 399 mAdded = false; 400 mAccessibilityManager = AccessibilityManager.getInstance(context); 401 mAccessibilityInteractionConnectionManager = 402 new AccessibilityInteractionConnectionManager(); 403 mAccessibilityManager.addAccessibilityStateChangeListener( 404 mAccessibilityInteractionConnectionManager); 405 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 406 mViewConfiguration = ViewConfiguration.get(context); 407 mDensity = context.getResources().getDisplayMetrics().densityDpi; 408 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 409 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 410 mChoreographer = Choreographer.getInstance(); 411 412 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 413 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 414 loadSystemProperties(); 415 mSimulatedDpad = new SimulatedDpad(context); 416 } 417 418 /** 419 * @return True if the application requests the use of a separate render thread, 420 * false otherwise 421 */ 422 private static boolean isRenderThreadRequested(Context context) { 423 if (USE_RENDER_THREAD) { 424 synchronized (sRenderThreadQueryLock) { 425 if (!sRenderThreadQueried) { 426 final PackageManager packageManager = context.getPackageManager(); 427 final String packageName = context.getApplicationInfo().packageName; 428 try { 429 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 430 PackageManager.GET_META_DATA); 431 if (applicationInfo.metaData != null) { 432 sUseRenderThread = applicationInfo.metaData.getBoolean( 433 "android.graphics.renderThread", false); 434 } 435 } catch (PackageManager.NameNotFoundException e) { 436 } finally { 437 sRenderThreadQueried = true; 438 } 439 } 440 return sUseRenderThread; 441 } 442 } else { 443 return false; 444 } 445 } 446 447 public static void addFirstDrawHandler(Runnable callback) { 448 synchronized (sFirstDrawHandlers) { 449 if (!sFirstDrawComplete) { 450 sFirstDrawHandlers.add(callback); 451 } 452 } 453 } 454 455 public static void addConfigCallback(ComponentCallbacks callback) { 456 synchronized (sConfigCallbacks) { 457 sConfigCallbacks.add(callback); 458 } 459 } 460 461 // FIXME for perf testing only 462 private boolean mProfile = false; 463 464 /** 465 * Call this to profile the next traversal call. 466 * FIXME for perf testing only. Remove eventually 467 */ 468 public void profile() { 469 mProfile = true; 470 } 471 472 /** 473 * Indicates whether we are in touch mode. Calling this method triggers an IPC 474 * call and should be avoided whenever possible. 475 * 476 * @return True, if the device is in touch mode, false otherwise. 477 * 478 * @hide 479 */ 480 static boolean isInTouchMode() { 481 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 482 if (windowSession != null) { 483 try { 484 return windowSession.getInTouchMode(); 485 } catch (RemoteException e) { 486 } 487 } 488 return false; 489 } 490 491 /** 492 * We have one child 493 */ 494 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 495 synchronized (this) { 496 if (mView == null) { 497 mView = view; 498 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 499 mFallbackEventHandler.setView(view); 500 mWindowAttributes.copyFrom(attrs); 501 if (mWindowAttributes.packageName == null) { 502 mWindowAttributes.packageName = mBasePackageName; 503 } 504 attrs = mWindowAttributes; 505 // Keep track of the actual window flags supplied by the client. 506 mClientWindowLayoutFlags = attrs.flags; 507 508 setAccessibilityFocus(null, null); 509 510 if (view instanceof RootViewSurfaceTaker) { 511 mSurfaceHolderCallback = 512 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 513 if (mSurfaceHolderCallback != null) { 514 mSurfaceHolder = new TakenSurfaceHolder(); 515 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 516 } 517 } 518 519 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 520 mTranslator = compatibilityInfo.getTranslator(); 521 522 // If the application owns the surface, don't enable hardware acceleration 523 if (mSurfaceHolder == null) { 524 enableHardwareAcceleration(mView.getContext(), attrs); 525 } 526 527 boolean restore = false; 528 if (mTranslator != null) { 529 mSurface.setCompatibilityTranslator(mTranslator); 530 restore = true; 531 attrs.backup(); 532 mTranslator.translateWindowLayout(attrs); 533 } 534 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 535 536 if (!compatibilityInfo.supportsScreen()) { 537 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 538 mLastInCompatMode = true; 539 } 540 541 mSoftInputMode = attrs.softInputMode; 542 mWindowAttributesChanged = true; 543 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 544 mAttachInfo.mRootView = view; 545 mAttachInfo.mScalingRequired = mTranslator != null; 546 mAttachInfo.mApplicationScale = 547 mTranslator == null ? 1.0f : mTranslator.applicationScale; 548 if (panelParentView != null) { 549 mAttachInfo.mPanelParentWindowToken 550 = panelParentView.getApplicationWindowToken(); 551 } 552 mAdded = true; 553 int res; /* = WindowManagerImpl.ADD_OKAY; */ 554 555 // Schedule the first layout -before- adding to the window 556 // manager, to make sure we do the relayout before receiving 557 // any other events from the system. 558 requestLayout(); 559 if ((mWindowAttributes.inputFeatures 560 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 561 mInputChannel = new InputChannel(); 562 } 563 try { 564 mOrigWindowType = mWindowAttributes.type; 565 mAttachInfo.mRecomputeGlobalAttributes = true; 566 collectViewAttributes(); 567 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 568 getHostVisibility(), mDisplay.getDisplayId(), 569 mAttachInfo.mContentInsets, mInputChannel); 570 } catch (RemoteException e) { 571 mAdded = false; 572 mView = null; 573 mAttachInfo.mRootView = null; 574 mInputChannel = null; 575 mFallbackEventHandler.setView(null); 576 unscheduleTraversals(); 577 setAccessibilityFocus(null, null); 578 throw new RuntimeException("Adding window failed", e); 579 } finally { 580 if (restore) { 581 attrs.restore(); 582 } 583 } 584 585 if (mTranslator != null) { 586 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 587 } 588 mPendingOverscanInsets.set(0, 0, 0, 0); 589 mPendingContentInsets.set(mAttachInfo.mContentInsets); 590 mPendingVisibleInsets.set(0, 0, 0, 0); 591 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 592 if (res < WindowManagerGlobal.ADD_OKAY) { 593 mAttachInfo.mRootView = null; 594 mAdded = false; 595 mFallbackEventHandler.setView(null); 596 unscheduleTraversals(); 597 setAccessibilityFocus(null, null); 598 switch (res) { 599 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 600 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 601 throw new WindowManager.BadTokenException( 602 "Unable to add window -- token " + attrs.token 603 + " is not valid; is your activity running?"); 604 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 605 throw new WindowManager.BadTokenException( 606 "Unable to add window -- token " + attrs.token 607 + " is not for an application"); 608 case WindowManagerGlobal.ADD_APP_EXITING: 609 throw new WindowManager.BadTokenException( 610 "Unable to add window -- app for token " + attrs.token 611 + " is exiting"); 612 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 613 throw new WindowManager.BadTokenException( 614 "Unable to add window -- window " + mWindow 615 + " has already been added"); 616 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 617 // Silently ignore -- we would have just removed it 618 // right away, anyway. 619 return; 620 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 621 throw new WindowManager.BadTokenException( 622 "Unable to add window " + mWindow + 623 " -- another window of this type already exists"); 624 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 625 throw new WindowManager.BadTokenException( 626 "Unable to add window " + mWindow + 627 " -- permission denied for this window type"); 628 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 629 throw new WindowManager.InvalidDisplayException( 630 "Unable to add window " + mWindow + 631 " -- the specified display can not be found"); 632 } 633 throw new RuntimeException( 634 "Unable to add window -- unknown error code " + res); 635 } 636 637 if (view instanceof RootViewSurfaceTaker) { 638 mInputQueueCallback = 639 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 640 } 641 if (mInputChannel != null) { 642 if (mInputQueueCallback != null) { 643 mInputQueue = new InputQueue(mInputChannel); 644 mInputQueueCallback.onInputQueueCreated(mInputQueue); 645 } else { 646 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 647 Looper.myLooper()); 648 } 649 } 650 651 view.assignParent(this); 652 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 653 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 654 655 if (mAccessibilityManager.isEnabled()) { 656 mAccessibilityInteractionConnectionManager.ensureConnection(); 657 } 658 659 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 660 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 661 } 662 663 mPendingInputEventQueueLengthCounterName = "pq:" + attrs.getTitle(); 664 mActiveInputEventQueueLengthCounterName = "aq:" + attrs.getTitle(); 665 } 666 } 667 } 668 669 void destroyHardwareResources() { 670 if (mAttachInfo.mHardwareRenderer != null) { 671 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 672 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 673 } 674 mAttachInfo.mHardwareRenderer.destroy(false); 675 } 676 } 677 678 void terminateHardwareResources() { 679 if (mAttachInfo.mHardwareRenderer != null) { 680 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 681 mAttachInfo.mHardwareRenderer.destroy(false); 682 } 683 } 684 685 void destroyHardwareLayers() { 686 if (mThread != Thread.currentThread()) { 687 if (mAttachInfo.mHardwareRenderer != null && 688 mAttachInfo.mHardwareRenderer.isEnabled()) { 689 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 690 } 691 } else { 692 if (mAttachInfo.mHardwareRenderer != null && 693 mAttachInfo.mHardwareRenderer.isEnabled()) { 694 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 695 } 696 } 697 } 698 699 void pushHardwareLayerUpdate(HardwareLayer layer) { 700 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 701 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 702 } 703 } 704 705 public boolean attachFunctor(int functor) { 706 //noinspection SimplifiableIfStatement 707 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 708 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 709 } 710 return false; 711 } 712 713 public void detachFunctor(int functor) { 714 if (mAttachInfo.mHardwareRenderer != null) { 715 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 716 } 717 } 718 719 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 720 mAttachInfo.mHardwareAccelerated = false; 721 mAttachInfo.mHardwareAccelerationRequested = false; 722 723 // Don't enable hardware acceleration when the application is in compatibility mode 724 if (mTranslator != null) return; 725 726 // Try to enable hardware acceleration if requested 727 final boolean hardwareAccelerated = 728 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 729 730 if (hardwareAccelerated) { 731 if (!HardwareRenderer.isAvailable()) { 732 return; 733 } 734 735 // Persistent processes (including the system) should not do 736 // accelerated rendering on low-end devices. In that case, 737 // sRendererDisabled will be set. In addition, the system process 738 // itself should never do accelerated rendering. In that case, both 739 // sRendererDisabled and sSystemRendererDisabled are set. When 740 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 741 // can be used by code on the system process to escape that and enable 742 // HW accelerated drawing. (This is basically for the lock screen.) 743 744 final boolean fakeHwAccelerated = (attrs.privateFlags & 745 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 746 final boolean forceHwAccelerated = (attrs.privateFlags & 747 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 748 749 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 750 && forceHwAccelerated)) { 751 // Don't enable hardware acceleration when we're not on the main thread 752 if (!HardwareRenderer.sSystemRendererDisabled && 753 Looper.getMainLooper() != Looper.myLooper()) { 754 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 755 + "acceleration outside of the main thread, aborting"); 756 return; 757 } 758 759 final boolean renderThread = isRenderThreadRequested(context); 760 if (renderThread) { 761 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 762 } 763 764 if (mAttachInfo.mHardwareRenderer != null) { 765 mAttachInfo.mHardwareRenderer.destroy(true); 766 } 767 768 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 769 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 770 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 771 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 772 = mAttachInfo.mHardwareRenderer != null; 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 mCurrentDirty.union(mPreviousDirty); 2391 mPreviousDirty.set(dirty); 2392 dirty.setEmpty(); 2393 2394 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2395 animating ? null : mCurrentDirty)) { 2396 mPreviousDirty.set(0, 0, mWidth, mHeight); 2397 } 2398 } else { 2399 // If we get here with a disabled & requested hardware renderer, something went 2400 // wrong (an invalidate posted right before we destroyed the hardware surface 2401 // for instance) so we should just bail out. Locking the surface with software 2402 // rendering at this point would lock it forever and prevent hardware renderer 2403 // from doing its job when it comes back. 2404 // Before we request a new frame we must however attempt to reinitiliaze the 2405 // hardware renderer if it's in requested state. This would happen after an 2406 // eglTerminate() for instance. 2407 if (attachInfo.mHardwareRenderer != null && 2408 !attachInfo.mHardwareRenderer.isEnabled() && 2409 attachInfo.mHardwareRenderer.isRequested()) { 2410 2411 try { 2412 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2413 mHolder.getSurface()); 2414 } catch (Surface.OutOfResourcesException e) { 2415 handleOutOfResourcesException(e); 2416 return; 2417 } 2418 2419 mFullRedrawNeeded = true; 2420 scheduleTraversals(); 2421 return; 2422 } 2423 2424 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2425 return; 2426 } 2427 } 2428 } 2429 2430 if (animating) { 2431 mFullRedrawNeeded = true; 2432 scheduleTraversals(); 2433 } 2434 } 2435 2436 /** 2437 * @return true if drawing was succesfull, false if an error occurred 2438 */ 2439 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2440 boolean scalingRequired, Rect dirty) { 2441 2442 // Draw with software renderer. 2443 Canvas canvas; 2444 try { 2445 int left = dirty.left; 2446 int top = dirty.top; 2447 int right = dirty.right; 2448 int bottom = dirty.bottom; 2449 2450 canvas = mSurface.lockCanvas(dirty); 2451 2452 if (left != dirty.left || top != dirty.top || right != dirty.right || 2453 bottom != dirty.bottom) { 2454 attachInfo.mIgnoreDirtyState = true; 2455 } 2456 2457 // TODO: Do this in native 2458 canvas.setDensity(mDensity); 2459 } catch (Surface.OutOfResourcesException e) { 2460 handleOutOfResourcesException(e); 2461 return false; 2462 } catch (IllegalArgumentException e) { 2463 Log.e(TAG, "Could not lock surface", e); 2464 // Don't assume this is due to out of memory, it could be 2465 // something else, and if it is something else then we could 2466 // kill stuff (or ourself) for no reason. 2467 mLayoutRequested = true; // ask wm for a new surface next time. 2468 return false; 2469 } 2470 2471 try { 2472 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2473 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2474 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2475 //canvas.drawARGB(255, 255, 0, 0); 2476 } 2477 2478 // If this bitmap's format includes an alpha channel, we 2479 // need to clear it before drawing so that the child will 2480 // properly re-composite its drawing on a transparent 2481 // background. This automatically respects the clip/dirty region 2482 // or 2483 // If we are applying an offset, we need to clear the area 2484 // where the offset doesn't appear to avoid having garbage 2485 // left in the blank areas. 2486 if (!canvas.isOpaque() || yoff != 0) { 2487 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2488 } 2489 2490 dirty.setEmpty(); 2491 mIsAnimating = false; 2492 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2493 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2494 2495 if (DEBUG_DRAW) { 2496 Context cxt = mView.getContext(); 2497 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2498 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2499 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2500 } 2501 try { 2502 canvas.translate(0, -yoff); 2503 if (mTranslator != null) { 2504 mTranslator.translateCanvas(canvas); 2505 } 2506 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2507 attachInfo.mSetIgnoreDirtyState = false; 2508 2509 mView.draw(canvas); 2510 2511 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2512 } finally { 2513 if (!attachInfo.mSetIgnoreDirtyState) { 2514 // Only clear the flag if it was not set during the mView.draw() call 2515 attachInfo.mIgnoreDirtyState = false; 2516 } 2517 } 2518 } finally { 2519 try { 2520 surface.unlockCanvasAndPost(canvas); 2521 } catch (IllegalArgumentException e) { 2522 Log.e(TAG, "Could not unlock surface", e); 2523 mLayoutRequested = true; // ask wm for a new surface next time. 2524 //noinspection ReturnInsideFinallyBlock 2525 return false; 2526 } 2527 2528 if (LOCAL_LOGV) { 2529 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2530 } 2531 } 2532 return true; 2533 } 2534 2535 /** 2536 * We want to draw a highlight around the current accessibility focused. 2537 * Since adding a style for all possible view is not a viable option we 2538 * have this specialized drawing method. 2539 * 2540 * Note: We are doing this here to be able to draw the highlight for 2541 * virtual views in addition to real ones. 2542 * 2543 * @param canvas The canvas on which to draw. 2544 */ 2545 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2546 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2547 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2548 return; 2549 } 2550 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2551 return; 2552 } 2553 Drawable drawable = getAccessibilityFocusedDrawable(); 2554 if (drawable == null) { 2555 return; 2556 } 2557 AccessibilityNodeProvider provider = 2558 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2559 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2560 if (provider == null) { 2561 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2562 } else { 2563 if (mAccessibilityFocusedVirtualView == null) { 2564 return; 2565 } 2566 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2567 } 2568 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2569 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2570 drawable.setBounds(bounds); 2571 drawable.draw(canvas); 2572 } 2573 2574 private Drawable getAccessibilityFocusedDrawable() { 2575 if (mAttachInfo != null) { 2576 // Lazily load the accessibility focus drawable. 2577 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2578 TypedValue value = new TypedValue(); 2579 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2580 R.attr.accessibilityFocusedDrawable, value, true); 2581 if (resolved) { 2582 mAttachInfo.mAccessibilityFocusDrawable = 2583 mView.mContext.getResources().getDrawable(value.resourceId); 2584 } 2585 } 2586 return mAttachInfo.mAccessibilityFocusDrawable; 2587 } 2588 return null; 2589 } 2590 2591 void invalidateDisplayLists() { 2592 final ArrayList<DisplayList> displayLists = mDisplayLists; 2593 final int count = displayLists.size(); 2594 2595 for (int i = 0; i < count; i++) { 2596 final DisplayList displayList = displayLists.get(i); 2597 if (displayList.isDirty()) { 2598 displayList.clear(); 2599 } 2600 } 2601 2602 displayLists.clear(); 2603 } 2604 2605 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2606 final View.AttachInfo attachInfo = mAttachInfo; 2607 final Rect ci = attachInfo.mContentInsets; 2608 final Rect vi = attachInfo.mVisibleInsets; 2609 int scrollY = 0; 2610 boolean handled = false; 2611 2612 if (vi.left > ci.left || vi.top > ci.top 2613 || vi.right > ci.right || vi.bottom > ci.bottom) { 2614 // We'll assume that we aren't going to change the scroll 2615 // offset, since we want to avoid that unless it is actually 2616 // going to make the focus visible... otherwise we scroll 2617 // all over the place. 2618 scrollY = mScrollY; 2619 // We can be called for two different situations: during a draw, 2620 // to update the scroll position if the focus has changed (in which 2621 // case 'rectangle' is null), or in response to a 2622 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2623 // is non-null and we just want to scroll to whatever that 2624 // rectangle is). 2625 View focus = mView.findFocus(); 2626 if (focus == null) { 2627 return false; 2628 } 2629 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2630 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2631 // If the focus has changed, then ignore any requests to scroll 2632 // to a rectangle; first we want to make sure the entire focus 2633 // view is visible. 2634 rectangle = null; 2635 } 2636 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2637 + " rectangle=" + rectangle + " ci=" + ci 2638 + " vi=" + vi); 2639 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2640 // Optimization: if the focus hasn't changed since last 2641 // time, and no layout has happened, then just leave things 2642 // as they are. 2643 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2644 + mScrollY + " vi=" + vi.toShortString()); 2645 } else if (focus != null) { 2646 // We need to determine if the currently focused view is 2647 // within the visible part of the window and, if not, apply 2648 // a pan so it can be seen. 2649 mLastScrolledFocus = new WeakReference<View>(focus); 2650 mScrollMayChange = false; 2651 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2652 // Try to find the rectangle from the focus view. 2653 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2654 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2655 + mView.getWidth() + " h=" + mView.getHeight() 2656 + " ci=" + ci.toShortString() 2657 + " vi=" + vi.toShortString()); 2658 if (rectangle == null) { 2659 focus.getFocusedRect(mTempRect); 2660 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2661 + ": focusRect=" + mTempRect.toShortString()); 2662 if (mView instanceof ViewGroup) { 2663 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2664 focus, mTempRect); 2665 } 2666 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2667 "Focus in window: focusRect=" 2668 + mTempRect.toShortString() 2669 + " visRect=" + mVisRect.toShortString()); 2670 } else { 2671 mTempRect.set(rectangle); 2672 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2673 "Request scroll to rect: " 2674 + mTempRect.toShortString() 2675 + " visRect=" + mVisRect.toShortString()); 2676 } 2677 if (mTempRect.intersect(mVisRect)) { 2678 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2679 "Focus window visible rect: " 2680 + mTempRect.toShortString()); 2681 if (mTempRect.height() > 2682 (mView.getHeight()-vi.top-vi.bottom)) { 2683 // If the focus simply is not going to fit, then 2684 // best is probably just to leave things as-is. 2685 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2686 "Too tall; leaving scrollY=" + scrollY); 2687 } else if ((mTempRect.top-scrollY) < vi.top) { 2688 scrollY -= vi.top - (mTempRect.top-scrollY); 2689 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2690 "Top covered; scrollY=" + scrollY); 2691 } else if ((mTempRect.bottom-scrollY) 2692 > (mView.getHeight()-vi.bottom)) { 2693 scrollY += (mTempRect.bottom-scrollY) 2694 - (mView.getHeight()-vi.bottom); 2695 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2696 "Bottom covered; scrollY=" + scrollY); 2697 } 2698 handled = true; 2699 } 2700 } 2701 } 2702 } 2703 2704 if (scrollY != mScrollY) { 2705 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2706 + mScrollY + " , new=" + scrollY); 2707 if (!immediate && mResizeBuffer == null) { 2708 if (mScroller == null) { 2709 mScroller = new Scroller(mView.getContext()); 2710 } 2711 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2712 } else if (mScroller != null) { 2713 mScroller.abortAnimation(); 2714 } 2715 mScrollY = scrollY; 2716 } 2717 2718 return handled; 2719 } 2720 2721 /** 2722 * @hide 2723 */ 2724 public View getAccessibilityFocusedHost() { 2725 return mAccessibilityFocusedHost; 2726 } 2727 2728 /** 2729 * @hide 2730 */ 2731 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2732 return mAccessibilityFocusedVirtualView; 2733 } 2734 2735 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2736 // If we have a virtual view with accessibility focus we need 2737 // to clear the focus and invalidate the virtual view bounds. 2738 if (mAccessibilityFocusedVirtualView != null) { 2739 2740 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2741 View focusHost = mAccessibilityFocusedHost; 2742 focusHost.clearAccessibilityFocusNoCallbacks(); 2743 2744 // Wipe the state of the current accessibility focus since 2745 // the call into the provider to clear accessibility focus 2746 // will fire an accessibility event which will end up calling 2747 // this method and we want to have clean state when this 2748 // invocation happens. 2749 mAccessibilityFocusedHost = null; 2750 mAccessibilityFocusedVirtualView = null; 2751 2752 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2753 if (provider != null) { 2754 // Invalidate the area of the cleared accessibility focus. 2755 focusNode.getBoundsInParent(mTempRect); 2756 focusHost.invalidate(mTempRect); 2757 // Clear accessibility focus in the virtual node. 2758 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2759 focusNode.getSourceNodeId()); 2760 provider.performAction(virtualNodeId, 2761 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2762 } 2763 focusNode.recycle(); 2764 } 2765 if (mAccessibilityFocusedHost != null) { 2766 // Clear accessibility focus in the view. 2767 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2768 } 2769 2770 // Set the new focus host and node. 2771 mAccessibilityFocusedHost = view; 2772 mAccessibilityFocusedVirtualView = node; 2773 } 2774 2775 public void requestChildFocus(View child, View focused) { 2776 if (DEBUG_INPUT_RESIZE) { 2777 Log.v(TAG, "Request child focus: focus now " + focused); 2778 } 2779 checkThread(); 2780 scheduleTraversals(); 2781 } 2782 2783 public void clearChildFocus(View child) { 2784 if (DEBUG_INPUT_RESIZE) { 2785 Log.v(TAG, "Clearing child focus"); 2786 } 2787 checkThread(); 2788 scheduleTraversals(); 2789 } 2790 2791 @Override 2792 public ViewParent getParentForAccessibility() { 2793 return null; 2794 } 2795 2796 public void focusableViewAvailable(View v) { 2797 checkThread(); 2798 if (mView != null) { 2799 if (!mView.hasFocus()) { 2800 v.requestFocus(); 2801 } else { 2802 // the one case where will transfer focus away from the current one 2803 // is if the current view is a view group that prefers to give focus 2804 // to its children first AND the view is a descendant of it. 2805 View focused = mView.findFocus(); 2806 if (focused instanceof ViewGroup) { 2807 ViewGroup group = (ViewGroup) focused; 2808 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2809 && isViewDescendantOf(v, focused)) { 2810 v.requestFocus(); 2811 } 2812 } 2813 } 2814 } 2815 } 2816 2817 public void recomputeViewAttributes(View child) { 2818 checkThread(); 2819 if (mView == child) { 2820 mAttachInfo.mRecomputeGlobalAttributes = true; 2821 if (!mWillDrawSoon) { 2822 scheduleTraversals(); 2823 } 2824 } 2825 } 2826 2827 void dispatchDetachedFromWindow() { 2828 if (mView != null && mView.mAttachInfo != null) { 2829 if (mAttachInfo.mHardwareRenderer != null && 2830 mAttachInfo.mHardwareRenderer.isEnabled()) { 2831 mAttachInfo.mHardwareRenderer.validate(); 2832 } 2833 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2834 mView.dispatchDetachedFromWindow(); 2835 } 2836 2837 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2838 mAccessibilityManager.removeAccessibilityStateChangeListener( 2839 mAccessibilityInteractionConnectionManager); 2840 removeSendWindowContentChangedCallback(); 2841 2842 destroyHardwareRenderer(); 2843 2844 setAccessibilityFocus(null, null); 2845 2846 mView = null; 2847 mAttachInfo.mRootView = null; 2848 mAttachInfo.mSurface = null; 2849 2850 mSurface.release(); 2851 2852 if (mInputQueueCallback != null && mInputQueue != null) { 2853 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2854 mInputQueueCallback = null; 2855 mInputQueue = null; 2856 } else if (mInputEventReceiver != null) { 2857 mInputEventReceiver.dispose(); 2858 mInputEventReceiver = null; 2859 } 2860 try { 2861 mWindowSession.remove(mWindow); 2862 } catch (RemoteException e) { 2863 } 2864 2865 // Dispose the input channel after removing the window so the Window Manager 2866 // doesn't interpret the input channel being closed as an abnormal termination. 2867 if (mInputChannel != null) { 2868 mInputChannel.dispose(); 2869 mInputChannel = null; 2870 } 2871 2872 unscheduleTraversals(); 2873 } 2874 2875 void updateConfiguration(Configuration config, boolean force) { 2876 if (DEBUG_CONFIGURATION) Log.v(TAG, 2877 "Applying new config to window " 2878 + mWindowAttributes.getTitle() 2879 + ": " + config); 2880 2881 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2882 if (ci != null) { 2883 config = new Configuration(config); 2884 ci.applyToConfiguration(mNoncompatDensity, config); 2885 } 2886 2887 synchronized (sConfigCallbacks) { 2888 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2889 sConfigCallbacks.get(i).onConfigurationChanged(config); 2890 } 2891 } 2892 if (mView != null) { 2893 // At this point the resources have been updated to 2894 // have the most recent config, whatever that is. Use 2895 // the one in them which may be newer. 2896 config = mView.getResources().getConfiguration(); 2897 if (force || mLastConfiguration.diff(config) != 0) { 2898 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2899 final int currentLayoutDirection = config.getLayoutDirection(); 2900 mLastConfiguration.setTo(config); 2901 if (lastLayoutDirection != currentLayoutDirection && 2902 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2903 mView.setLayoutDirection(currentLayoutDirection); 2904 } 2905 mView.dispatchConfigurationChanged(config); 2906 } 2907 } 2908 } 2909 2910 /** 2911 * Return true if child is an ancestor of parent, (or equal to the parent). 2912 */ 2913 public static boolean isViewDescendantOf(View child, View parent) { 2914 if (child == parent) { 2915 return true; 2916 } 2917 2918 final ViewParent theParent = child.getParent(); 2919 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2920 } 2921 2922 private static void forceLayout(View view) { 2923 view.forceLayout(); 2924 if (view instanceof ViewGroup) { 2925 ViewGroup group = (ViewGroup) view; 2926 final int count = group.getChildCount(); 2927 for (int i = 0; i < count; i++) { 2928 forceLayout(group.getChildAt(i)); 2929 } 2930 } 2931 } 2932 2933 private final static int MSG_INVALIDATE = 1; 2934 private final static int MSG_INVALIDATE_RECT = 2; 2935 private final static int MSG_DIE = 3; 2936 private final static int MSG_RESIZED = 4; 2937 private final static int MSG_RESIZED_REPORT = 5; 2938 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2939 private final static int MSG_DISPATCH_KEY = 7; 2940 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2941 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2942 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2943 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2944 private final static int MSG_CHECK_FOCUS = 13; 2945 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2946 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2947 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2948 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2949 private final static int MSG_UPDATE_CONFIGURATION = 18; 2950 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2951 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2952 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2953 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2954 private final static int MSG_INVALIDATE_WORLD = 23; 2955 private final static int MSG_WINDOW_MOVED = 24; 2956 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 25; 2957 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 26; 2958 2959 final class ViewRootHandler extends Handler { 2960 @Override 2961 public String getMessageName(Message message) { 2962 switch (message.what) { 2963 case MSG_INVALIDATE: 2964 return "MSG_INVALIDATE"; 2965 case MSG_INVALIDATE_RECT: 2966 return "MSG_INVALIDATE_RECT"; 2967 case MSG_DIE: 2968 return "MSG_DIE"; 2969 case MSG_RESIZED: 2970 return "MSG_RESIZED"; 2971 case MSG_RESIZED_REPORT: 2972 return "MSG_RESIZED_REPORT"; 2973 case MSG_WINDOW_FOCUS_CHANGED: 2974 return "MSG_WINDOW_FOCUS_CHANGED"; 2975 case MSG_DISPATCH_KEY: 2976 return "MSG_DISPATCH_KEY"; 2977 case MSG_DISPATCH_APP_VISIBILITY: 2978 return "MSG_DISPATCH_APP_VISIBILITY"; 2979 case MSG_DISPATCH_GET_NEW_SURFACE: 2980 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2981 case MSG_DISPATCH_KEY_FROM_IME: 2982 return "MSG_DISPATCH_KEY_FROM_IME"; 2983 case MSG_FINISH_INPUT_CONNECTION: 2984 return "MSG_FINISH_INPUT_CONNECTION"; 2985 case MSG_CHECK_FOCUS: 2986 return "MSG_CHECK_FOCUS"; 2987 case MSG_CLOSE_SYSTEM_DIALOGS: 2988 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2989 case MSG_DISPATCH_DRAG_EVENT: 2990 return "MSG_DISPATCH_DRAG_EVENT"; 2991 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2992 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2993 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2994 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2995 case MSG_UPDATE_CONFIGURATION: 2996 return "MSG_UPDATE_CONFIGURATION"; 2997 case MSG_PROCESS_INPUT_EVENTS: 2998 return "MSG_PROCESS_INPUT_EVENTS"; 2999 case MSG_DISPATCH_SCREEN_STATE: 3000 return "MSG_DISPATCH_SCREEN_STATE"; 3001 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3002 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3003 case MSG_DISPATCH_DONE_ANIMATING: 3004 return "MSG_DISPATCH_DONE_ANIMATING"; 3005 case MSG_WINDOW_MOVED: 3006 return "MSG_WINDOW_MOVED"; 3007 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3008 return "MSG_ENQUEUE_X_AXIS_KEY_REPEAT"; 3009 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: 3010 return "MSG_ENQUEUE_Y_AXIS_KEY_REPEAT"; 3011 } 3012 return super.getMessageName(message); 3013 } 3014 3015 @Override 3016 public void handleMessage(Message msg) { 3017 switch (msg.what) { 3018 case MSG_INVALIDATE: 3019 ((View) msg.obj).invalidate(); 3020 break; 3021 case MSG_INVALIDATE_RECT: 3022 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3023 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3024 info.recycle(); 3025 break; 3026 case MSG_PROCESS_INPUT_EVENTS: 3027 mProcessInputEventsScheduled = false; 3028 doProcessInputEvents(); 3029 break; 3030 case MSG_DISPATCH_APP_VISIBILITY: 3031 handleAppVisibility(msg.arg1 != 0); 3032 break; 3033 case MSG_DISPATCH_GET_NEW_SURFACE: 3034 handleGetNewSurface(); 3035 break; 3036 case MSG_RESIZED: { 3037 // Recycled in the fall through... 3038 SomeArgs args = (SomeArgs) msg.obj; 3039 if (mWinFrame.equals(args.arg1) 3040 && mPendingOverscanInsets.equals(args.arg5) 3041 && mPendingContentInsets.equals(args.arg2) 3042 && mPendingVisibleInsets.equals(args.arg3) 3043 && args.arg4 == null) { 3044 break; 3045 } 3046 } // fall through... 3047 case MSG_RESIZED_REPORT: 3048 if (mAdded) { 3049 SomeArgs args = (SomeArgs) msg.obj; 3050 3051 Configuration config = (Configuration) args.arg4; 3052 if (config != null) { 3053 updateConfiguration(config, false); 3054 } 3055 3056 mWinFrame.set((Rect) args.arg1); 3057 mPendingOverscanInsets.set((Rect) args.arg5); 3058 mPendingContentInsets.set((Rect) args.arg2); 3059 mPendingVisibleInsets.set((Rect) args.arg3); 3060 3061 args.recycle(); 3062 3063 if (msg.what == MSG_RESIZED_REPORT) { 3064 mReportNextDraw = true; 3065 } 3066 3067 if (mView != null) { 3068 forceLayout(mView); 3069 } 3070 3071 requestLayout(); 3072 } 3073 break; 3074 case MSG_WINDOW_MOVED: 3075 if (mAdded) { 3076 final int w = mWinFrame.width(); 3077 final int h = mWinFrame.height(); 3078 final int l = msg.arg1; 3079 final int t = msg.arg2; 3080 mWinFrame.left = l; 3081 mWinFrame.right = l + w; 3082 mWinFrame.top = t; 3083 mWinFrame.bottom = t + h; 3084 3085 if (mView != null) { 3086 forceLayout(mView); 3087 } 3088 requestLayout(); 3089 } 3090 break; 3091 case MSG_WINDOW_FOCUS_CHANGED: { 3092 if (mAdded) { 3093 boolean hasWindowFocus = msg.arg1 != 0; 3094 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3095 3096 profileRendering(hasWindowFocus); 3097 3098 if (hasWindowFocus) { 3099 boolean inTouchMode = msg.arg2 != 0; 3100 ensureTouchModeLocally(inTouchMode); 3101 3102 if (mAttachInfo.mHardwareRenderer != null && 3103 mSurface != null && mSurface.isValid()) { 3104 mFullRedrawNeeded = true; 3105 try { 3106 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3107 mWidth, mHeight, mHolder.getSurface()); 3108 } catch (Surface.OutOfResourcesException e) { 3109 Log.e(TAG, "OutOfResourcesException locking surface", e); 3110 try { 3111 if (!mWindowSession.outOfMemory(mWindow)) { 3112 Slog.w(TAG, "No processes killed for memory; killing self"); 3113 Process.killProcess(Process.myPid()); 3114 } 3115 } catch (RemoteException ex) { 3116 } 3117 // Retry in a bit. 3118 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3119 return; 3120 } 3121 } 3122 } 3123 3124 mLastWasImTarget = WindowManager.LayoutParams 3125 .mayUseInputMethod(mWindowAttributes.flags); 3126 3127 InputMethodManager imm = InputMethodManager.peekInstance(); 3128 if (mView != null) { 3129 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3130 imm.startGettingWindowFocus(mView); 3131 } 3132 mAttachInfo.mKeyDispatchState.reset(); 3133 mView.dispatchWindowFocusChanged(hasWindowFocus); 3134 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3135 } 3136 3137 // Note: must be done after the focus change callbacks, 3138 // so all of the view state is set up correctly. 3139 if (hasWindowFocus) { 3140 if (imm != null && mLastWasImTarget) { 3141 imm.onWindowFocus(mView, mView.findFocus(), 3142 mWindowAttributes.softInputMode, 3143 !mHasHadWindowFocus, mWindowAttributes.flags); 3144 } 3145 // Clear the forward bit. We can just do this directly, since 3146 // the window manager doesn't care about it. 3147 mWindowAttributes.softInputMode &= 3148 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3149 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3150 .softInputMode &= 3151 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3152 mHasHadWindowFocus = true; 3153 } 3154 3155 setAccessibilityFocus(null, null); 3156 3157 if (mView != null && mAccessibilityManager.isEnabled()) { 3158 if (hasWindowFocus) { 3159 mView.sendAccessibilityEvent( 3160 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3161 } 3162 } 3163 } 3164 } break; 3165 case MSG_DIE: 3166 doDie(); 3167 break; 3168 case MSG_DISPATCH_KEY: { 3169 KeyEvent event = (KeyEvent)msg.obj; 3170 enqueueInputEvent(event, null, 0, true); 3171 } break; 3172 case MSG_DISPATCH_KEY_FROM_IME: { 3173 if (LOCAL_LOGV) Log.v( 3174 TAG, "Dispatching key " 3175 + msg.obj + " from IME to " + mView); 3176 KeyEvent event = (KeyEvent)msg.obj; 3177 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3178 // The IME is trying to say this event is from the 3179 // system! Bad bad bad! 3180 //noinspection UnusedAssignment 3181 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3182 } 3183 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3184 } break; 3185 case MSG_FINISH_INPUT_CONNECTION: { 3186 InputMethodManager imm = InputMethodManager.peekInstance(); 3187 if (imm != null) { 3188 imm.reportFinishInputConnection((InputConnection)msg.obj); 3189 } 3190 } break; 3191 case MSG_CHECK_FOCUS: { 3192 InputMethodManager imm = InputMethodManager.peekInstance(); 3193 if (imm != null) { 3194 imm.checkFocus(); 3195 } 3196 } break; 3197 case MSG_CLOSE_SYSTEM_DIALOGS: { 3198 if (mView != null) { 3199 mView.onCloseSystemDialogs((String)msg.obj); 3200 } 3201 } break; 3202 case MSG_DISPATCH_DRAG_EVENT: 3203 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3204 DragEvent event = (DragEvent)msg.obj; 3205 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3206 handleDragEvent(event); 3207 } break; 3208 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3209 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3210 } break; 3211 case MSG_UPDATE_CONFIGURATION: { 3212 Configuration config = (Configuration)msg.obj; 3213 if (config.isOtherSeqNewer(mLastConfiguration)) { 3214 config = mLastConfiguration; 3215 } 3216 updateConfiguration(config, false); 3217 } break; 3218 case MSG_DISPATCH_SCREEN_STATE: { 3219 if (mView != null) { 3220 handleScreenStateChange(msg.arg1 == 1); 3221 } 3222 } break; 3223 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3224 setAccessibilityFocus(null, null); 3225 } break; 3226 case MSG_DISPATCH_DONE_ANIMATING: { 3227 handleDispatchDoneAnimating(); 3228 } break; 3229 case MSG_INVALIDATE_WORLD: { 3230 if (mView != null) { 3231 invalidateWorld(mView); 3232 } 3233 } break; 3234 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3235 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 3236 KeyEvent oldEvent = (KeyEvent)msg.obj; 3237 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, SystemClock.uptimeMillis(), 3238 oldEvent.getRepeatCount() + 1); 3239 if (mAttachInfo.mHasWindowFocus) { 3240 enqueueInputEvent(e); 3241 Message m = obtainMessage(msg.what, e); 3242 m.setAsynchronous(true); 3243 sendMessageDelayed(m, mViewConfiguration.getKeyRepeatDelay()); 3244 } 3245 } break; 3246 } 3247 } 3248 } 3249 3250 final ViewRootHandler mHandler = new ViewRootHandler(); 3251 3252 /** 3253 * Something in the current window tells us we need to change the touch mode. For 3254 * example, we are not in touch mode, and the user touches the screen. 3255 * 3256 * If the touch mode has changed, tell the window manager, and handle it locally. 3257 * 3258 * @param inTouchMode Whether we want to be in touch mode. 3259 * @return True if the touch mode changed and focus changed was changed as a result 3260 */ 3261 boolean ensureTouchMode(boolean inTouchMode) { 3262 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3263 + "touch mode is " + mAttachInfo.mInTouchMode); 3264 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3265 3266 // tell the window manager 3267 try { 3268 mWindowSession.setInTouchMode(inTouchMode); 3269 } catch (RemoteException e) { 3270 throw new RuntimeException(e); 3271 } 3272 3273 // handle the change 3274 return ensureTouchModeLocally(inTouchMode); 3275 } 3276 3277 /** 3278 * Ensure that the touch mode for this window is set, and if it is changing, 3279 * take the appropriate action. 3280 * @param inTouchMode Whether we want to be in touch mode. 3281 * @return True if the touch mode changed and focus changed was changed as a result 3282 */ 3283 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3284 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3285 + "touch mode is " + mAttachInfo.mInTouchMode); 3286 3287 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3288 3289 mAttachInfo.mInTouchMode = inTouchMode; 3290 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3291 3292 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3293 } 3294 3295 private boolean enterTouchMode() { 3296 if (mView != null) { 3297 if (mView.hasFocus()) { 3298 // note: not relying on mFocusedView here because this could 3299 // be when the window is first being added, and mFocused isn't 3300 // set yet. 3301 final View focused = mView.findFocus(); 3302 if (focused != null && !focused.isFocusableInTouchMode()) { 3303 final ViewGroup ancestorToTakeFocus = 3304 findAncestorToTakeFocusInTouchMode(focused); 3305 if (ancestorToTakeFocus != null) { 3306 // there is an ancestor that wants focus after its descendants that 3307 // is focusable in touch mode.. give it focus 3308 return ancestorToTakeFocus.requestFocus(); 3309 } else { 3310 // nothing appropriate to have focus in touch mode, clear it out 3311 focused.unFocus(); 3312 return true; 3313 } 3314 } 3315 } 3316 } 3317 return false; 3318 } 3319 3320 /** 3321 * Find an ancestor of focused that wants focus after its descendants and is 3322 * focusable in touch mode. 3323 * @param focused The currently focused view. 3324 * @return An appropriate view, or null if no such view exists. 3325 */ 3326 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3327 ViewParent parent = focused.getParent(); 3328 while (parent instanceof ViewGroup) { 3329 final ViewGroup vgParent = (ViewGroup) parent; 3330 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3331 && vgParent.isFocusableInTouchMode()) { 3332 return vgParent; 3333 } 3334 if (vgParent.isRootNamespace()) { 3335 return null; 3336 } else { 3337 parent = vgParent.getParent(); 3338 } 3339 } 3340 return null; 3341 } 3342 3343 private boolean leaveTouchMode() { 3344 if (mView != null) { 3345 if (mView.hasFocus()) { 3346 View focusedView = mView.findFocus(); 3347 if (!(focusedView instanceof ViewGroup)) { 3348 // some view has focus, let it keep it 3349 return false; 3350 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3351 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3352 // some view group has focus, and doesn't prefer its children 3353 // over itself for focus, so let them keep it. 3354 return false; 3355 } 3356 } 3357 3358 // find the best view to give focus to in this brave new non-touch-mode 3359 // world 3360 final View focused = focusSearch(null, View.FOCUS_DOWN); 3361 if (focused != null) { 3362 return focused.requestFocus(View.FOCUS_DOWN); 3363 } 3364 } 3365 return false; 3366 } 3367 3368 private int deliverInputEvent(QueuedInputEvent q) { 3369 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3370 try { 3371 if (q.mEvent instanceof KeyEvent) { 3372 return deliverKeyEvent(q); 3373 } else { 3374 final int source = q.mEvent.getSource(); 3375 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3376 return deliverPointerEvent(q); 3377 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3378 return deliverTrackballEvent(q); 3379 } else { 3380 return deliverGenericMotionEvent(q); 3381 } 3382 } 3383 } finally { 3384 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3385 } 3386 } 3387 3388 private int deliverInputEventPostIme(QueuedInputEvent q) { 3389 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3390 try { 3391 if (q.mEvent instanceof KeyEvent) { 3392 return deliverKeyEventPostIme(q); 3393 } else { 3394 final int source = q.mEvent.getSource(); 3395 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3396 return deliverTrackballEventPostIme(q); 3397 } else { 3398 return deliverGenericMotionEventPostIme(q); 3399 } 3400 } 3401 } finally { 3402 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3403 } 3404 } 3405 3406 private int deliverPointerEvent(QueuedInputEvent q) { 3407 final MotionEvent event = (MotionEvent)q.mEvent; 3408 final boolean isTouchEvent = event.isTouchEvent(); 3409 if (mInputEventConsistencyVerifier != null) { 3410 if (isTouchEvent) { 3411 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3412 } else { 3413 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3414 } 3415 } 3416 3417 // If there is no view, then the event will not be handled. 3418 if (mView == null || !mAdded) { 3419 return EVENT_NOT_HANDLED; 3420 } 3421 3422 // Translate the pointer event for compatibility, if needed. 3423 if (mTranslator != null) { 3424 mTranslator.translateEventInScreenToAppWindow(event); 3425 } 3426 3427 // Enter touch mode on down or scroll. 3428 final int action = event.getAction(); 3429 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3430 ensureTouchMode(true); 3431 } 3432 3433 // Offset the scroll position. 3434 if (mCurScrollY != 0) { 3435 event.offsetLocation(0, mCurScrollY); 3436 } 3437 if (MEASURE_LATENCY) { 3438 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3439 } 3440 3441 // Remember the touch position for possible drag-initiation. 3442 if (isTouchEvent) { 3443 mLastTouchPoint.x = event.getRawX(); 3444 mLastTouchPoint.y = event.getRawY(); 3445 } 3446 3447 // Dispatch touch to view hierarchy. 3448 boolean handled = mView.dispatchPointerEvent(event); 3449 if (MEASURE_LATENCY) { 3450 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3451 } 3452 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3453 } 3454 3455 private int deliverTrackballEvent(QueuedInputEvent q) { 3456 final MotionEvent event = (MotionEvent)q.mEvent; 3457 if (mInputEventConsistencyVerifier != null) { 3458 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3459 } 3460 3461 int result = EVENT_POST_IME; 3462 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3463 if (LOCAL_LOGV) 3464 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3465 3466 // Dispatch to the IME before propagating down the view hierarchy. 3467 result = dispatchImeInputEvent(q); 3468 } 3469 return result; 3470 } 3471 3472 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3473 final MotionEvent event = (MotionEvent) q.mEvent; 3474 3475 // If there is no view, then the event will not be handled. 3476 if (mView == null || !mAdded) { 3477 return EVENT_NOT_HANDLED; 3478 } 3479 3480 // Deliver the trackball event to the view. 3481 if (mView.dispatchTrackballEvent(event)) { 3482 // If we reach this, we delivered a trackball event to mView and 3483 // mView consumed it. Because we will not translate the trackball 3484 // event into a key event, touch mode will not exit, so we exit 3485 // touch mode here. 3486 ensureTouchMode(false); 3487 mLastTrackballTime = Integer.MIN_VALUE; 3488 return EVENT_HANDLED; 3489 } 3490 3491 // Translate the trackball event into DPAD keys and try to deliver those. 3492 final TrackballAxis x = mTrackballAxisX; 3493 final TrackballAxis y = mTrackballAxisY; 3494 3495 long curTime = SystemClock.uptimeMillis(); 3496 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3497 // It has been too long since the last movement, 3498 // so restart at the beginning. 3499 x.reset(0); 3500 y.reset(0); 3501 mLastTrackballTime = curTime; 3502 } 3503 3504 final int action = event.getAction(); 3505 final int metaState = event.getMetaState(); 3506 switch (action) { 3507 case MotionEvent.ACTION_DOWN: 3508 x.reset(2); 3509 y.reset(2); 3510 enqueueInputEvent(new KeyEvent(curTime, curTime, 3511 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3512 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3513 InputDevice.SOURCE_KEYBOARD)); 3514 break; 3515 case MotionEvent.ACTION_UP: 3516 x.reset(2); 3517 y.reset(2); 3518 enqueueInputEvent(new KeyEvent(curTime, curTime, 3519 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3520 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3521 InputDevice.SOURCE_KEYBOARD)); 3522 break; 3523 } 3524 3525 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3526 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3527 + " move=" + event.getX() 3528 + " / Y=" + y.position + " step=" 3529 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3530 + " move=" + event.getY()); 3531 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3532 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3533 3534 // Generate DPAD events based on the trackball movement. 3535 // We pick the axis that has moved the most as the direction of 3536 // the DPAD. When we generate DPAD events for one axis, then the 3537 // other axis is reset -- we don't want to perform DPAD jumps due 3538 // to slight movements in the trackball when making major movements 3539 // along the other axis. 3540 int keycode = 0; 3541 int movement = 0; 3542 float accel = 1; 3543 if (xOff > yOff) { 3544 movement = x.generate((2/event.getXPrecision())); 3545 if (movement != 0) { 3546 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3547 : KeyEvent.KEYCODE_DPAD_LEFT; 3548 accel = x.acceleration; 3549 y.reset(2); 3550 } 3551 } else if (yOff > 0) { 3552 movement = y.generate((2/event.getYPrecision())); 3553 if (movement != 0) { 3554 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3555 : KeyEvent.KEYCODE_DPAD_UP; 3556 accel = y.acceleration; 3557 x.reset(2); 3558 } 3559 } 3560 3561 if (keycode != 0) { 3562 if (movement < 0) movement = -movement; 3563 int accelMovement = (int)(movement * accel); 3564 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3565 + " accelMovement=" + accelMovement 3566 + " accel=" + accel); 3567 if (accelMovement > movement) { 3568 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3569 + keycode); 3570 movement--; 3571 int repeatCount = accelMovement - movement; 3572 enqueueInputEvent(new KeyEvent(curTime, curTime, 3573 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3574 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3575 InputDevice.SOURCE_KEYBOARD)); 3576 } 3577 while (movement > 0) { 3578 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3579 + keycode); 3580 movement--; 3581 curTime = SystemClock.uptimeMillis(); 3582 enqueueInputEvent(new KeyEvent(curTime, curTime, 3583 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3584 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3585 InputDevice.SOURCE_KEYBOARD)); 3586 enqueueInputEvent(new KeyEvent(curTime, curTime, 3587 KeyEvent.ACTION_UP, keycode, 0, metaState, 3588 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3589 InputDevice.SOURCE_KEYBOARD)); 3590 } 3591 mLastTrackballTime = curTime; 3592 } 3593 3594 // Unfortunately we can't tell whether the application consumed the keys, so 3595 // we always consider the trackball event handled. 3596 return EVENT_HANDLED; 3597 } 3598 3599 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3600 final MotionEvent event = (MotionEvent)q.mEvent; 3601 if (mInputEventConsistencyVerifier != null) { 3602 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3603 } 3604 3605 int result = EVENT_POST_IME; 3606 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3607 if (LOCAL_LOGV) 3608 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3609 3610 // Dispatch to the IME before propagating down the view hierarchy. 3611 result = dispatchImeInputEvent(q); 3612 } 3613 return result; 3614 } 3615 3616 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3617 final MotionEvent event = (MotionEvent) q.mEvent; 3618 final int source = event.getSource(); 3619 final boolean isJoystick = event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK); 3620 final boolean isTouchNavigation = event.isFromSource(InputDevice.SOURCE_TOUCH_NAVIGATION); 3621 3622 // If there is no view, then the event will not be handled. 3623 if (mView == null || !mAdded) { 3624 if (isJoystick) { 3625 updateJoystickDirection(event, false); 3626 } else if (isTouchNavigation) { 3627 mSimulatedDpad.updateTouchNavigation(this, event, false); 3628 } 3629 return EVENT_NOT_HANDLED; 3630 } 3631 3632 // Deliver the event to the view. 3633 if (mView.dispatchGenericMotionEvent(event)) { 3634 if (isJoystick) { 3635 updateJoystickDirection(event, false); 3636 } else if (isTouchNavigation) { 3637 mSimulatedDpad.updateTouchNavigation(this, event, false); 3638 } 3639 return EVENT_HANDLED; 3640 } 3641 3642 if (isJoystick) { 3643 // Translate the joystick event into DPAD keys and try to deliver 3644 // those. 3645 updateJoystickDirection(event, true); 3646 return EVENT_HANDLED; 3647 } 3648 if (isTouchNavigation) { 3649 mSimulatedDpad.updateTouchNavigation(this, event, true); 3650 return EVENT_HANDLED; 3651 } 3652 return EVENT_NOT_HANDLED; 3653 } 3654 3655 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3656 final long time = event.getEventTime(); 3657 final int metaState = event.getMetaState(); 3658 final int deviceId = event.getDeviceId(); 3659 final int source = event.getSource(); 3660 3661 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3662 if (xDirection == 0) { 3663 xDirection = joystickAxisValueToDirection(event.getX()); 3664 } 3665 3666 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3667 if (yDirection == 0) { 3668 yDirection = joystickAxisValueToDirection(event.getY()); 3669 } 3670 3671 if (xDirection != mLastJoystickXDirection) { 3672 if (mLastJoystickXKeyCode != 0) { 3673 mHandler.removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 3674 enqueueInputEvent(new KeyEvent(time, time, 3675 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3676 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3677 mLastJoystickXKeyCode = 0; 3678 } 3679 3680 mLastJoystickXDirection = xDirection; 3681 3682 if (xDirection != 0 && synthesizeNewKeys) { 3683 mLastJoystickXKeyCode = xDirection > 0 3684 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3685 final KeyEvent e = new KeyEvent(time, time, 3686 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3687 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3688 enqueueInputEvent(e); 3689 Message m = mHandler.obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 3690 m.setAsynchronous(true); 3691 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3692 } 3693 } 3694 3695 if (yDirection != mLastJoystickYDirection) { 3696 if (mLastJoystickYKeyCode != 0) { 3697 mHandler.removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 3698 enqueueInputEvent(new KeyEvent(time, time, 3699 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3700 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3701 mLastJoystickYKeyCode = 0; 3702 } 3703 3704 mLastJoystickYDirection = yDirection; 3705 3706 if (yDirection != 0 && synthesizeNewKeys) { 3707 mLastJoystickYKeyCode = yDirection > 0 3708 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3709 final KeyEvent e = new KeyEvent(time, time, 3710 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3711 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3712 enqueueInputEvent(e); 3713 Message m = mHandler.obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 3714 m.setAsynchronous(true); 3715 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3716 } 3717 } 3718 } 3719 3720 private static int joystickAxisValueToDirection(float value) { 3721 if (value >= 0.5f) { 3722 return 1; 3723 } else if (value <= -0.5f) { 3724 return -1; 3725 } else { 3726 return 0; 3727 } 3728 } 3729 3730 /** 3731 * Returns true if the key is used for keyboard navigation. 3732 * @param keyEvent The key event. 3733 * @return True if the key is used for keyboard navigation. 3734 */ 3735 private static boolean isNavigationKey(KeyEvent keyEvent) { 3736 switch (keyEvent.getKeyCode()) { 3737 case KeyEvent.KEYCODE_DPAD_LEFT: 3738 case KeyEvent.KEYCODE_DPAD_RIGHT: 3739 case KeyEvent.KEYCODE_DPAD_UP: 3740 case KeyEvent.KEYCODE_DPAD_DOWN: 3741 case KeyEvent.KEYCODE_DPAD_CENTER: 3742 case KeyEvent.KEYCODE_PAGE_UP: 3743 case KeyEvent.KEYCODE_PAGE_DOWN: 3744 case KeyEvent.KEYCODE_MOVE_HOME: 3745 case KeyEvent.KEYCODE_MOVE_END: 3746 case KeyEvent.KEYCODE_TAB: 3747 case KeyEvent.KEYCODE_SPACE: 3748 case KeyEvent.KEYCODE_ENTER: 3749 return true; 3750 } 3751 return false; 3752 } 3753 3754 /** 3755 * Returns true if the key is used for typing. 3756 * @param keyEvent The key event. 3757 * @return True if the key is used for typing. 3758 */ 3759 private static boolean isTypingKey(KeyEvent keyEvent) { 3760 return keyEvent.getUnicodeChar() > 0; 3761 } 3762 3763 /** 3764 * See if the key event means we should leave touch mode (and leave touch mode if so). 3765 * @param event The key event. 3766 * @return Whether this key event should be consumed (meaning the act of 3767 * leaving touch mode alone is considered the event). 3768 */ 3769 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3770 // Only relevant in touch mode. 3771 if (!mAttachInfo.mInTouchMode) { 3772 return false; 3773 } 3774 3775 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3776 final int action = event.getAction(); 3777 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3778 return false; 3779 } 3780 3781 // Don't leave touch mode if the IME told us not to. 3782 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3783 return false; 3784 } 3785 3786 // If the key can be used for keyboard navigation then leave touch mode 3787 // and select a focused view if needed (in ensureTouchMode). 3788 // When a new focused view is selected, we consume the navigation key because 3789 // navigation doesn't make much sense unless a view already has focus so 3790 // the key's purpose is to set focus. 3791 if (isNavigationKey(event)) { 3792 return ensureTouchMode(false); 3793 } 3794 3795 // If the key can be used for typing then leave touch mode 3796 // and select a focused view if needed (in ensureTouchMode). 3797 // Always allow the view to process the typing key. 3798 if (isTypingKey(event)) { 3799 ensureTouchMode(false); 3800 return false; 3801 } 3802 3803 return false; 3804 } 3805 3806 private int deliverKeyEvent(QueuedInputEvent q) { 3807 final KeyEvent event = (KeyEvent)q.mEvent; 3808 if (mInputEventConsistencyVerifier != null) { 3809 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3810 } 3811 3812 int result = EVENT_POST_IME; 3813 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3814 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3815 3816 // Perform predispatching before the IME. 3817 if (mView.dispatchKeyEventPreIme(event)) { 3818 return EVENT_HANDLED; 3819 } 3820 3821 // Dispatch to the IME before propagating down the view hierarchy. 3822 result = dispatchImeInputEvent(q); 3823 } 3824 return result; 3825 } 3826 3827 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3828 final KeyEvent event = (KeyEvent)q.mEvent; 3829 3830 // If the view went away, then the event will not be handled. 3831 if (mView == null || !mAdded) { 3832 return EVENT_NOT_HANDLED; 3833 } 3834 3835 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3836 if (checkForLeavingTouchModeAndConsume(event)) { 3837 return EVENT_HANDLED; 3838 } 3839 3840 // Make sure the fallback event policy sees all keys that will be delivered to the 3841 // view hierarchy. 3842 mFallbackEventHandler.preDispatchKeyEvent(event); 3843 3844 // Deliver the key to the view hierarchy. 3845 if (mView.dispatchKeyEvent(event)) { 3846 return EVENT_HANDLED; 3847 } 3848 3849 // If the Control modifier is held, try to interpret the key as a shortcut. 3850 if (event.getAction() == KeyEvent.ACTION_DOWN 3851 && event.isCtrlPressed() 3852 && event.getRepeatCount() == 0 3853 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3854 if (mView.dispatchKeyShortcutEvent(event)) { 3855 return EVENT_HANDLED; 3856 } 3857 } 3858 3859 // Apply the fallback event policy. 3860 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3861 return EVENT_HANDLED; 3862 } 3863 3864 // Handle automatic focus changes. 3865 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3866 int direction = 0; 3867 switch (event.getKeyCode()) { 3868 case KeyEvent.KEYCODE_DPAD_LEFT: 3869 if (event.hasNoModifiers()) { 3870 direction = View.FOCUS_LEFT; 3871 } 3872 break; 3873 case KeyEvent.KEYCODE_DPAD_RIGHT: 3874 if (event.hasNoModifiers()) { 3875 direction = View.FOCUS_RIGHT; 3876 } 3877 break; 3878 case KeyEvent.KEYCODE_DPAD_UP: 3879 if (event.hasNoModifiers()) { 3880 direction = View.FOCUS_UP; 3881 } 3882 break; 3883 case KeyEvent.KEYCODE_DPAD_DOWN: 3884 if (event.hasNoModifiers()) { 3885 direction = View.FOCUS_DOWN; 3886 } 3887 break; 3888 case KeyEvent.KEYCODE_TAB: 3889 if (event.hasNoModifiers()) { 3890 direction = View.FOCUS_FORWARD; 3891 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3892 direction = View.FOCUS_BACKWARD; 3893 } 3894 break; 3895 } 3896 if (direction != 0) { 3897 View focused = mView.findFocus(); 3898 if (focused != null) { 3899 View v = focused.focusSearch(direction); 3900 if (v != null && v != focused) { 3901 // do the math the get the interesting rect 3902 // of previous focused into the coord system of 3903 // newly focused view 3904 focused.getFocusedRect(mTempRect); 3905 if (mView instanceof ViewGroup) { 3906 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3907 focused, mTempRect); 3908 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3909 v, mTempRect); 3910 } 3911 if (v.requestFocus(direction, mTempRect)) { 3912 playSoundEffect(SoundEffectConstants 3913 .getContantForFocusDirection(direction)); 3914 return EVENT_HANDLED; 3915 } 3916 } 3917 3918 // Give the focused view a last chance to handle the dpad key. 3919 if (mView.dispatchUnhandledMove(focused, direction)) { 3920 return EVENT_HANDLED; 3921 } 3922 } else { 3923 // find the best view to give focus to in this non-touch-mode with no-focus 3924 View v = focusSearch(null, direction); 3925 if (v != null && v.requestFocus(direction)) { 3926 return EVENT_HANDLED; 3927 } 3928 } 3929 } 3930 } 3931 3932 // Key was unhandled. 3933 return EVENT_NOT_HANDLED; 3934 } 3935 3936 /* drag/drop */ 3937 void setLocalDragState(Object obj) { 3938 mLocalDragState = obj; 3939 } 3940 3941 private void handleDragEvent(DragEvent event) { 3942 // From the root, only drag start/end/location are dispatched. entered/exited 3943 // are determined and dispatched by the viewgroup hierarchy, who then report 3944 // that back here for ultimate reporting back to the framework. 3945 if (mView != null && mAdded) { 3946 final int what = event.mAction; 3947 3948 if (what == DragEvent.ACTION_DRAG_EXITED) { 3949 // A direct EXITED event means that the window manager knows we've just crossed 3950 // a window boundary, so the current drag target within this one must have 3951 // just been exited. Send it the usual notifications and then we're done 3952 // for now. 3953 mView.dispatchDragEvent(event); 3954 } else { 3955 // Cache the drag description when the operation starts, then fill it in 3956 // on subsequent calls as a convenience 3957 if (what == DragEvent.ACTION_DRAG_STARTED) { 3958 mCurrentDragView = null; // Start the current-recipient tracking 3959 mDragDescription = event.mClipDescription; 3960 } else { 3961 event.mClipDescription = mDragDescription; 3962 } 3963 3964 // For events with a [screen] location, translate into window coordinates 3965 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3966 mDragPoint.set(event.mX, event.mY); 3967 if (mTranslator != null) { 3968 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3969 } 3970 3971 if (mCurScrollY != 0) { 3972 mDragPoint.offset(0, mCurScrollY); 3973 } 3974 3975 event.mX = mDragPoint.x; 3976 event.mY = mDragPoint.y; 3977 } 3978 3979 // Remember who the current drag target is pre-dispatch 3980 final View prevDragView = mCurrentDragView; 3981 3982 // Now dispatch the drag/drop event 3983 boolean result = mView.dispatchDragEvent(event); 3984 3985 // If we changed apparent drag target, tell the OS about it 3986 if (prevDragView != mCurrentDragView) { 3987 try { 3988 if (prevDragView != null) { 3989 mWindowSession.dragRecipientExited(mWindow); 3990 } 3991 if (mCurrentDragView != null) { 3992 mWindowSession.dragRecipientEntered(mWindow); 3993 } 3994 } catch (RemoteException e) { 3995 Slog.e(TAG, "Unable to note drag target change"); 3996 } 3997 } 3998 3999 // Report the drop result when we're done 4000 if (what == DragEvent.ACTION_DROP) { 4001 mDragDescription = null; 4002 try { 4003 Log.i(TAG, "Reporting drop result: " + result); 4004 mWindowSession.reportDropResult(mWindow, result); 4005 } catch (RemoteException e) { 4006 Log.e(TAG, "Unable to report drop result"); 4007 } 4008 } 4009 4010 // When the drag operation ends, release any local state object 4011 // that may have been in use 4012 if (what == DragEvent.ACTION_DRAG_ENDED) { 4013 setLocalDragState(null); 4014 } 4015 } 4016 } 4017 event.recycle(); 4018 } 4019 4020 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4021 if (mSeq != args.seq) { 4022 // The sequence has changed, so we need to update our value and make 4023 // sure to do a traversal afterward so the window manager is given our 4024 // most recent data. 4025 mSeq = args.seq; 4026 mAttachInfo.mForceReportNewAttributes = true; 4027 scheduleTraversals(); 4028 } 4029 if (mView == null) return; 4030 if (args.localChanges != 0) { 4031 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4032 } 4033 if (mAttachInfo != null) { 4034 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4035 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4036 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4037 mView.dispatchSystemUiVisibilityChanged(visibility); 4038 } 4039 } 4040 } 4041 4042 public void handleDispatchDoneAnimating() { 4043 if (mWindowsAnimating) { 4044 mWindowsAnimating = false; 4045 if (!mDirty.isEmpty() || mIsAnimating) { 4046 scheduleTraversals(); 4047 } 4048 } 4049 } 4050 4051 public void getLastTouchPoint(Point outLocation) { 4052 outLocation.x = (int) mLastTouchPoint.x; 4053 outLocation.y = (int) mLastTouchPoint.y; 4054 } 4055 4056 public void setDragFocus(View newDragTarget) { 4057 if (mCurrentDragView != newDragTarget) { 4058 mCurrentDragView = newDragTarget; 4059 } 4060 } 4061 4062 private AudioManager getAudioManager() { 4063 if (mView == null) { 4064 throw new IllegalStateException("getAudioManager called when there is no mView"); 4065 } 4066 if (mAudioManager == null) { 4067 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4068 } 4069 return mAudioManager; 4070 } 4071 4072 public AccessibilityInteractionController getAccessibilityInteractionController() { 4073 if (mView == null) { 4074 throw new IllegalStateException("getAccessibilityInteractionController" 4075 + " called when there is no mView"); 4076 } 4077 if (mAccessibilityInteractionController == null) { 4078 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4079 } 4080 return mAccessibilityInteractionController; 4081 } 4082 4083 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4084 boolean insetsPending) throws RemoteException { 4085 4086 float appScale = mAttachInfo.mApplicationScale; 4087 boolean restore = false; 4088 if (params != null && mTranslator != null) { 4089 restore = true; 4090 params.backup(); 4091 mTranslator.translateWindowLayout(params); 4092 } 4093 if (params != null) { 4094 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4095 } 4096 mPendingConfiguration.seq = 0; 4097 //Log.d(TAG, ">>>>>> CALLING relayout"); 4098 if (params != null && mOrigWindowType != params.type) { 4099 // For compatibility with old apps, don't crash here. 4100 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4101 Slog.w(TAG, "Window type can not be changed after " 4102 + "the window is added; ignoring change of " + mView); 4103 params.type = mOrigWindowType; 4104 } 4105 } 4106 int relayoutResult = mWindowSession.relayout( 4107 mWindow, mSeq, params, 4108 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4109 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4110 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4111 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4112 mPendingConfiguration, mSurface); 4113 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4114 if (restore) { 4115 params.restore(); 4116 } 4117 4118 if (mTranslator != null) { 4119 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4120 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4121 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4122 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4123 } 4124 return relayoutResult; 4125 } 4126 4127 /** 4128 * {@inheritDoc} 4129 */ 4130 public void playSoundEffect(int effectId) { 4131 checkThread(); 4132 4133 try { 4134 final AudioManager audioManager = getAudioManager(); 4135 4136 switch (effectId) { 4137 case SoundEffectConstants.CLICK: 4138 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4139 return; 4140 case SoundEffectConstants.NAVIGATION_DOWN: 4141 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4142 return; 4143 case SoundEffectConstants.NAVIGATION_LEFT: 4144 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4145 return; 4146 case SoundEffectConstants.NAVIGATION_RIGHT: 4147 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4148 return; 4149 case SoundEffectConstants.NAVIGATION_UP: 4150 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4151 return; 4152 default: 4153 throw new IllegalArgumentException("unknown effect id " + effectId + 4154 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4155 } 4156 } catch (IllegalStateException e) { 4157 // Exception thrown by getAudioManager() when mView is null 4158 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4159 e.printStackTrace(); 4160 } 4161 } 4162 4163 /** 4164 * {@inheritDoc} 4165 */ 4166 public boolean performHapticFeedback(int effectId, boolean always) { 4167 try { 4168 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4169 } catch (RemoteException e) { 4170 return false; 4171 } 4172 } 4173 4174 /** 4175 * {@inheritDoc} 4176 */ 4177 public View focusSearch(View focused, int direction) { 4178 checkThread(); 4179 if (!(mView instanceof ViewGroup)) { 4180 return null; 4181 } 4182 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4183 } 4184 4185 public void debug() { 4186 mView.debug(); 4187 } 4188 4189 public void dumpGfxInfo(int[] info) { 4190 info[0] = info[1] = 0; 4191 if (mView != null) { 4192 getGfxInfo(mView, info); 4193 } 4194 } 4195 4196 private static void getGfxInfo(View view, int[] info) { 4197 DisplayList displayList = view.mDisplayList; 4198 info[0]++; 4199 if (displayList != null) { 4200 info[1] += displayList.getSize(); 4201 } 4202 4203 if (view instanceof ViewGroup) { 4204 ViewGroup group = (ViewGroup) view; 4205 4206 int count = group.getChildCount(); 4207 for (int i = 0; i < count; i++) { 4208 getGfxInfo(group.getChildAt(i), info); 4209 } 4210 } 4211 } 4212 4213 public void die(boolean immediate) { 4214 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4215 // done by dispatchDetachedFromWindow will cause havoc on return. 4216 if (immediate && !mIsInTraversal) { 4217 doDie(); 4218 } else { 4219 if (!mIsDrawing) { 4220 destroyHardwareRenderer(); 4221 } else { 4222 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4223 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4224 } 4225 mHandler.sendEmptyMessage(MSG_DIE); 4226 } 4227 } 4228 4229 void doDie() { 4230 checkThread(); 4231 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4232 synchronized (this) { 4233 if (mAdded) { 4234 dispatchDetachedFromWindow(); 4235 } 4236 4237 if (mAdded && !mFirst) { 4238 invalidateDisplayLists(); 4239 destroyHardwareRenderer(); 4240 4241 if (mView != null) { 4242 int viewVisibility = mView.getVisibility(); 4243 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4244 if (mWindowAttributesChanged || viewVisibilityChanged) { 4245 // If layout params have been changed, first give them 4246 // to the window manager to make sure it has the correct 4247 // animation info. 4248 try { 4249 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4250 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4251 mWindowSession.finishDrawing(mWindow); 4252 } 4253 } catch (RemoteException e) { 4254 } 4255 } 4256 4257 mSurface.release(); 4258 } 4259 } 4260 4261 mAdded = false; 4262 } 4263 } 4264 4265 public void requestUpdateConfiguration(Configuration config) { 4266 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4267 mHandler.sendMessage(msg); 4268 } 4269 4270 public void loadSystemProperties() { 4271 mHandler.post(new Runnable() { 4272 @Override 4273 public void run() { 4274 // Profiling 4275 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4276 profileRendering(mAttachInfo.mHasWindowFocus); 4277 4278 // Hardware rendering 4279 if (mAttachInfo.mHardwareRenderer != null) { 4280 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4281 invalidate(); 4282 } 4283 } 4284 4285 // Layout debugging 4286 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4287 if (layout != mAttachInfo.mDebugLayout) { 4288 mAttachInfo.mDebugLayout = layout; 4289 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4290 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4291 } 4292 } 4293 } 4294 }); 4295 } 4296 4297 private void destroyHardwareRenderer() { 4298 AttachInfo attachInfo = mAttachInfo; 4299 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4300 4301 if (hardwareRenderer != null) { 4302 if (mView != null) { 4303 hardwareRenderer.destroyHardwareResources(mView); 4304 } 4305 hardwareRenderer.destroy(true); 4306 hardwareRenderer.setRequested(false); 4307 4308 attachInfo.mHardwareRenderer = null; 4309 attachInfo.mHardwareAccelerated = false; 4310 } 4311 } 4312 4313 public void dispatchFinishInputConnection(InputConnection connection) { 4314 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4315 mHandler.sendMessage(msg); 4316 } 4317 4318 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4319 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4320 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4321 + " contentInsets=" + contentInsets.toShortString() 4322 + " visibleInsets=" + visibleInsets.toShortString() 4323 + " reportDraw=" + reportDraw); 4324 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4325 if (mTranslator != null) { 4326 mTranslator.translateRectInScreenToAppWindow(frame); 4327 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4328 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4329 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4330 } 4331 SomeArgs args = SomeArgs.obtain(); 4332 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4333 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4334 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4335 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4336 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4337 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4338 msg.obj = args; 4339 mHandler.sendMessage(msg); 4340 } 4341 4342 public void dispatchMoved(int newX, int newY) { 4343 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4344 if (mTranslator != null) { 4345 PointF point = new PointF(newX, newY); 4346 mTranslator.translatePointInScreenToAppWindow(point); 4347 newX = (int) (point.x + 0.5); 4348 newY = (int) (point.y + 0.5); 4349 } 4350 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4351 mHandler.sendMessage(msg); 4352 } 4353 4354 /** 4355 * Represents a pending input event that is waiting in a queue. 4356 * 4357 * Input events are processed in serial order by the timestamp specified by 4358 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4359 * one input event to the application at a time and waits for the application 4360 * to finish handling it before delivering the next one. 4361 * 4362 * However, because the application or IME can synthesize and inject multiple 4363 * key events at a time without going through the input dispatcher, we end up 4364 * needing a queue on the application's side. 4365 */ 4366 private static final class QueuedInputEvent { 4367 public static final int FLAG_DELIVER_POST_IME = 1; 4368 4369 public QueuedInputEvent mNext; 4370 4371 public InputEvent mEvent; 4372 public InputEventReceiver mReceiver; 4373 public int mFlags; 4374 } 4375 4376 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4377 InputEventReceiver receiver, int flags) { 4378 QueuedInputEvent q = mQueuedInputEventPool; 4379 if (q != null) { 4380 mQueuedInputEventPoolSize -= 1; 4381 mQueuedInputEventPool = q.mNext; 4382 q.mNext = null; 4383 } else { 4384 q = new QueuedInputEvent(); 4385 } 4386 4387 q.mEvent = event; 4388 q.mReceiver = receiver; 4389 q.mFlags = flags; 4390 return q; 4391 } 4392 4393 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4394 q.mEvent = null; 4395 q.mReceiver = null; 4396 4397 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4398 mQueuedInputEventPoolSize += 1; 4399 q.mNext = mQueuedInputEventPool; 4400 mQueuedInputEventPool = q; 4401 } 4402 } 4403 4404 void enqueueInputEvent(InputEvent event) { 4405 enqueueInputEvent(event, null, 0, false); 4406 } 4407 4408 void enqueueInputEvent(InputEvent event, 4409 InputEventReceiver receiver, int flags, boolean processImmediately) { 4410 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4411 4412 // Always enqueue the input event in order, regardless of its time stamp. 4413 // We do this because the application or the IME may inject key events 4414 // in response to touch events and we want to ensure that the injected keys 4415 // are processed in the order they were received and we cannot trust that 4416 // the time stamp of injected events are monotonic. 4417 QueuedInputEvent last = mPendingInputEventTail; 4418 if (last == null) { 4419 mPendingInputEventHead = q; 4420 mPendingInputEventTail = q; 4421 } else { 4422 last.mNext = q; 4423 mPendingInputEventTail = q; 4424 } 4425 mPendingInputEventCount += 1; 4426 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4427 mPendingInputEventCount); 4428 4429 if (processImmediately) { 4430 doProcessInputEvents(); 4431 } else { 4432 scheduleProcessInputEvents(); 4433 } 4434 } 4435 4436 private void scheduleProcessInputEvents() { 4437 if (!mProcessInputEventsScheduled) { 4438 mProcessInputEventsScheduled = true; 4439 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4440 msg.setAsynchronous(true); 4441 mHandler.sendMessage(msg); 4442 } 4443 } 4444 4445 void doProcessInputEvents() { 4446 // Handle all of the available pending input events. Currently this will immediately 4447 // process all of the events it can until it encounters one that must go through the IME. 4448 // After that it will continue adding events to the active input queue but will wait for a 4449 // response from the IME, regardless of whether that particular event needs it or not, in 4450 // order to guarantee ordering consistency. This could be slightly improved by only 4451 // queueing events whose source has previously encountered something that needs to be 4452 // handled by the IME, and otherwise handling them immediately since we only need to 4453 // guarantee ordering within a given source. 4454 while (mPendingInputEventHead != null) { 4455 QueuedInputEvent q = mPendingInputEventHead; 4456 mPendingInputEventHead = q.mNext; 4457 if (mPendingInputEventHead == null) { 4458 mPendingInputEventTail = null; 4459 } 4460 q.mNext = null; 4461 4462 mPendingInputEventCount -= 1; 4463 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4464 mPendingInputEventCount); 4465 4466 int result = deliverInputEvent(q); 4467 4468 if (result == EVENT_HANDLED || result == EVENT_NOT_HANDLED) { 4469 finishInputEvent(q, result == EVENT_HANDLED); 4470 } else if (result == EVENT_PENDING_IME) { 4471 enqueueActiveInputEvent(q); 4472 } else { 4473 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4474 // If the IME decided not to handle this event, and we have no events already being 4475 // handled by the IME, go ahead and handle this one and then continue to the next 4476 // input event. Otherwise, queue it up and handle it after whatever in front of it 4477 // in the queue has been handled. 4478 if (mActiveInputEventHead == null) { 4479 result = deliverInputEventPostIme(q); 4480 finishInputEvent(q, result == EVENT_HANDLED); 4481 } else { 4482 enqueueActiveInputEvent(q); 4483 } 4484 } 4485 } 4486 4487 // We are done processing all input events that we can process right now 4488 // so we can clear the pending flag immediately. 4489 if (mProcessInputEventsScheduled) { 4490 mProcessInputEventsScheduled = false; 4491 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4492 } 4493 } 4494 4495 private void enqueueActiveInputEvent(QueuedInputEvent q) { 4496 if (mActiveInputEventHead == null) { 4497 mActiveInputEventHead = q; 4498 mActiveInputEventTail = q; 4499 } else { 4500 mActiveInputEventTail.mNext = q; 4501 mActiveInputEventTail = q; 4502 } 4503 mActiveInputEventCount += 1; 4504 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mActiveInputEventQueueLengthCounterName, 4505 mActiveInputEventCount); 4506 } 4507 4508 private QueuedInputEvent dequeueActiveInputEvent() { 4509 return dequeueActiveInputEvent(mActiveInputEventHead); 4510 } 4511 4512 4513 private QueuedInputEvent dequeueActiveInputEvent(QueuedInputEvent q) { 4514 QueuedInputEvent curr = mActiveInputEventHead; 4515 QueuedInputEvent prev = null; 4516 while (curr != null && curr != q) { 4517 prev = curr; 4518 curr = curr.mNext; 4519 } 4520 if (curr != null) { 4521 if (mActiveInputEventHead == curr) { 4522 mActiveInputEventHead = curr.mNext; 4523 } else { 4524 prev.mNext = curr.mNext; 4525 } 4526 if (mActiveInputEventTail == curr) { 4527 mActiveInputEventTail = prev; 4528 } 4529 curr.mNext = null; 4530 4531 mActiveInputEventCount -= 1; 4532 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mActiveInputEventQueueLengthCounterName, 4533 mActiveInputEventCount); 4534 } 4535 return curr; 4536 } 4537 4538 private QueuedInputEvent findActiveInputEvent(int seq) { 4539 QueuedInputEvent q = mActiveInputEventHead; 4540 while (q != null && q.mEvent.getSequenceNumber() != seq) { 4541 q = q.mNext; 4542 } 4543 return q; 4544 } 4545 4546 int dispatchImeInputEvent(QueuedInputEvent q) { 4547 if (mLastWasImTarget) { 4548 InputMethodManager imm = InputMethodManager.peekInstance(); 4549 if (imm != null) { 4550 final InputEvent event = q.mEvent; 4551 final int seq = event.getSequenceNumber(); 4552 if (DEBUG_IMF) 4553 Log.v(TAG, "Sending input event to IME: seq=" + seq + " event=" + event); 4554 return imm.dispatchInputEvent(mView.getContext(), seq, event, 4555 mInputMethodCallback); 4556 } 4557 } 4558 return EVENT_POST_IME; 4559 } 4560 4561 void handleImeFinishedEvent(int seq, boolean handled) { 4562 QueuedInputEvent q = findActiveInputEvent(seq); 4563 if (q != null) { 4564 if (DEBUG_IMF) { 4565 Log.v(TAG, "IME finished event: seq=" + seq 4566 + " handled=" + handled + " event=" + q); 4567 } 4568 4569 if (handled) { 4570 dequeueActiveInputEvent(q); 4571 finishInputEvent(q, true); 4572 } else { 4573 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4574 } 4575 4576 4577 // Flush all of the input events that are no longer waiting on the IME 4578 while (mActiveInputEventHead != null && (mActiveInputEventHead.mFlags & 4579 QueuedInputEvent.FLAG_DELIVER_POST_IME) != 0) { 4580 q = dequeueActiveInputEvent(); 4581 // If the window doesn't currently have input focus, then drop 4582 // this event. This could be an event that came back from the 4583 // IME dispatch but the window has lost focus in the meantime. 4584 handled = false; 4585 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4586 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4587 } else { 4588 handled = (deliverInputEventPostIme(q) == EVENT_HANDLED); 4589 } 4590 finishInputEvent(q, handled); 4591 } 4592 } else { 4593 if (DEBUG_IMF) { 4594 Log.v(TAG, "IME finished event: seq=" + seq 4595 + " handled=" + handled + ", event not found!"); 4596 } 4597 } 4598 4599 } 4600 4601 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4602 if (q.mReceiver != null) { 4603 q.mReceiver.finishInputEvent(q.mEvent, handled); 4604 } else { 4605 q.mEvent.recycleIfNeededAfterDispatch(); 4606 } 4607 4608 recycleQueuedInputEvent(q); 4609 } 4610 4611 private static boolean isTerminalInputEvent(InputEvent event) { 4612 if (event instanceof KeyEvent) { 4613 final KeyEvent keyEvent = (KeyEvent)event; 4614 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4615 } else { 4616 final MotionEvent motionEvent = (MotionEvent)event; 4617 final int action = motionEvent.getAction(); 4618 return action == MotionEvent.ACTION_UP 4619 || action == MotionEvent.ACTION_CANCEL 4620 || action == MotionEvent.ACTION_HOVER_EXIT; 4621 } 4622 } 4623 4624 void scheduleConsumeBatchedInput() { 4625 if (!mConsumeBatchedInputScheduled) { 4626 mConsumeBatchedInputScheduled = true; 4627 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4628 mConsumedBatchedInputRunnable, null); 4629 } 4630 } 4631 4632 void unscheduleConsumeBatchedInput() { 4633 if (mConsumeBatchedInputScheduled) { 4634 mConsumeBatchedInputScheduled = false; 4635 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4636 mConsumedBatchedInputRunnable, null); 4637 } 4638 } 4639 4640 void doConsumeBatchedInput(long frameTimeNanos) { 4641 if (mConsumeBatchedInputScheduled) { 4642 mConsumeBatchedInputScheduled = false; 4643 if (mInputEventReceiver != null) { 4644 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4645 } 4646 doProcessInputEvents(); 4647 } 4648 } 4649 4650 final class TraversalRunnable implements Runnable { 4651 @Override 4652 public void run() { 4653 doTraversal(); 4654 } 4655 } 4656 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4657 4658 final class WindowInputEventReceiver extends InputEventReceiver { 4659 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4660 super(inputChannel, looper); 4661 } 4662 4663 @Override 4664 public void onInputEvent(InputEvent event) { 4665 enqueueInputEvent(event, this, 0, true); 4666 } 4667 4668 @Override 4669 public void onBatchedInputEventPending() { 4670 scheduleConsumeBatchedInput(); 4671 } 4672 4673 @Override 4674 public void dispose() { 4675 unscheduleConsumeBatchedInput(); 4676 super.dispose(); 4677 } 4678 } 4679 WindowInputEventReceiver mInputEventReceiver; 4680 4681 final class ConsumeBatchedInputRunnable implements Runnable { 4682 @Override 4683 public void run() { 4684 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4685 } 4686 } 4687 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4688 new ConsumeBatchedInputRunnable(); 4689 boolean mConsumeBatchedInputScheduled; 4690 4691 final class InvalidateOnAnimationRunnable implements Runnable { 4692 private boolean mPosted; 4693 private ArrayList<View> mViews = new ArrayList<View>(); 4694 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4695 new ArrayList<AttachInfo.InvalidateInfo>(); 4696 private View[] mTempViews; 4697 private AttachInfo.InvalidateInfo[] mTempViewRects; 4698 4699 public void addView(View view) { 4700 synchronized (this) { 4701 mViews.add(view); 4702 postIfNeededLocked(); 4703 } 4704 } 4705 4706 public void addViewRect(AttachInfo.InvalidateInfo info) { 4707 synchronized (this) { 4708 mViewRects.add(info); 4709 postIfNeededLocked(); 4710 } 4711 } 4712 4713 public void removeView(View view) { 4714 synchronized (this) { 4715 mViews.remove(view); 4716 4717 for (int i = mViewRects.size(); i-- > 0; ) { 4718 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4719 if (info.target == view) { 4720 mViewRects.remove(i); 4721 info.recycle(); 4722 } 4723 } 4724 4725 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4726 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4727 mPosted = false; 4728 } 4729 } 4730 } 4731 4732 @Override 4733 public void run() { 4734 final int viewCount; 4735 final int viewRectCount; 4736 synchronized (this) { 4737 mPosted = false; 4738 4739 viewCount = mViews.size(); 4740 if (viewCount != 0) { 4741 mTempViews = mViews.toArray(mTempViews != null 4742 ? mTempViews : new View[viewCount]); 4743 mViews.clear(); 4744 } 4745 4746 viewRectCount = mViewRects.size(); 4747 if (viewRectCount != 0) { 4748 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4749 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4750 mViewRects.clear(); 4751 } 4752 } 4753 4754 for (int i = 0; i < viewCount; i++) { 4755 mTempViews[i].invalidate(); 4756 mTempViews[i] = null; 4757 } 4758 4759 for (int i = 0; i < viewRectCount; i++) { 4760 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4761 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4762 info.recycle(); 4763 } 4764 } 4765 4766 private void postIfNeededLocked() { 4767 if (!mPosted) { 4768 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4769 mPosted = true; 4770 } 4771 } 4772 } 4773 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4774 new InvalidateOnAnimationRunnable(); 4775 4776 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4777 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4778 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4779 } 4780 4781 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4782 long delayMilliseconds) { 4783 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4784 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4785 } 4786 4787 public void dispatchInvalidateOnAnimation(View view) { 4788 mInvalidateOnAnimationRunnable.addView(view); 4789 } 4790 4791 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4792 mInvalidateOnAnimationRunnable.addViewRect(info); 4793 } 4794 4795 public void enqueueDisplayList(DisplayList displayList) { 4796 mDisplayLists.add(displayList); 4797 } 4798 4799 public void cancelInvalidate(View view) { 4800 mHandler.removeMessages(MSG_INVALIDATE, view); 4801 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4802 // them to the pool 4803 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4804 mInvalidateOnAnimationRunnable.removeView(view); 4805 } 4806 4807 public void dispatchKey(KeyEvent event) { 4808 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4809 msg.setAsynchronous(true); 4810 mHandler.sendMessage(msg); 4811 } 4812 4813 public void dispatchKeyFromIme(KeyEvent event) { 4814 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4815 msg.setAsynchronous(true); 4816 mHandler.sendMessage(msg); 4817 } 4818 4819 public void dispatchUnhandledKey(KeyEvent event) { 4820 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4821 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4822 final int keyCode = event.getKeyCode(); 4823 final int metaState = event.getMetaState(); 4824 4825 // Check for fallback actions specified by the key character map. 4826 KeyCharacterMap.FallbackAction fallbackAction = 4827 kcm.getFallbackAction(keyCode, metaState); 4828 if (fallbackAction != null) { 4829 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4830 KeyEvent fallbackEvent = KeyEvent.obtain( 4831 event.getDownTime(), event.getEventTime(), 4832 event.getAction(), fallbackAction.keyCode, 4833 event.getRepeatCount(), fallbackAction.metaState, 4834 event.getDeviceId(), event.getScanCode(), 4835 flags, event.getSource(), null); 4836 fallbackAction.recycle(); 4837 4838 dispatchKey(fallbackEvent); 4839 } 4840 } 4841 } 4842 4843 public void dispatchAppVisibility(boolean visible) { 4844 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4845 msg.arg1 = visible ? 1 : 0; 4846 mHandler.sendMessage(msg); 4847 } 4848 4849 public void dispatchScreenStateChange(boolean on) { 4850 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4851 msg.arg1 = on ? 1 : 0; 4852 mHandler.sendMessage(msg); 4853 } 4854 4855 public void dispatchGetNewSurface() { 4856 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4857 mHandler.sendMessage(msg); 4858 } 4859 4860 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4861 Message msg = Message.obtain(); 4862 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4863 msg.arg1 = hasFocus ? 1 : 0; 4864 msg.arg2 = inTouchMode ? 1 : 0; 4865 mHandler.sendMessage(msg); 4866 } 4867 4868 public void dispatchCloseSystemDialogs(String reason) { 4869 Message msg = Message.obtain(); 4870 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4871 msg.obj = reason; 4872 mHandler.sendMessage(msg); 4873 } 4874 4875 public void dispatchDragEvent(DragEvent event) { 4876 final int what; 4877 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4878 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4879 mHandler.removeMessages(what); 4880 } else { 4881 what = MSG_DISPATCH_DRAG_EVENT; 4882 } 4883 Message msg = mHandler.obtainMessage(what, event); 4884 mHandler.sendMessage(msg); 4885 } 4886 4887 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4888 int localValue, int localChanges) { 4889 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4890 args.seq = seq; 4891 args.globalVisibility = globalVisibility; 4892 args.localValue = localValue; 4893 args.localChanges = localChanges; 4894 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4895 } 4896 4897 public void dispatchDoneAnimating() { 4898 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4899 } 4900 4901 public void dispatchCheckFocus() { 4902 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4903 // This will result in a call to checkFocus() below. 4904 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4905 } 4906 } 4907 4908 /** 4909 * Post a callback to send a 4910 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4911 * This event is send at most once every 4912 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4913 */ 4914 private void postSendWindowContentChangedCallback(View source) { 4915 if (mSendWindowContentChangedAccessibilityEvent == null) { 4916 mSendWindowContentChangedAccessibilityEvent = 4917 new SendWindowContentChangedAccessibilityEvent(); 4918 } 4919 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4920 if (oldSource == null) { 4921 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4922 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4923 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4924 } else { 4925 mSendWindowContentChangedAccessibilityEvent.mSource = 4926 getCommonPredecessor(oldSource, source); 4927 } 4928 } 4929 4930 /** 4931 * Remove a posted callback to send a 4932 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4933 */ 4934 private void removeSendWindowContentChangedCallback() { 4935 if (mSendWindowContentChangedAccessibilityEvent != null) { 4936 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4937 } 4938 } 4939 4940 public boolean showContextMenuForChild(View originalView) { 4941 return false; 4942 } 4943 4944 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4945 return null; 4946 } 4947 4948 public void createContextMenu(ContextMenu menu) { 4949 } 4950 4951 public void childDrawableStateChanged(View child) { 4952 } 4953 4954 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4955 if (mView == null) { 4956 return false; 4957 } 4958 // Intercept accessibility focus events fired by virtual nodes to keep 4959 // track of accessibility focus position in such nodes. 4960 final int eventType = event.getEventType(); 4961 switch (eventType) { 4962 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4963 final long sourceNodeId = event.getSourceNodeId(); 4964 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4965 sourceNodeId); 4966 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4967 if (source != null) { 4968 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4969 if (provider != null) { 4970 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4971 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4972 setAccessibilityFocus(source, node); 4973 } 4974 } 4975 } break; 4976 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4977 final long sourceNodeId = event.getSourceNodeId(); 4978 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4979 sourceNodeId); 4980 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4981 if (source != null) { 4982 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4983 if (provider != null) { 4984 setAccessibilityFocus(null, null); 4985 } 4986 } 4987 } break; 4988 } 4989 mAccessibilityManager.sendAccessibilityEvent(event); 4990 return true; 4991 } 4992 4993 @Override 4994 public void childAccessibilityStateChanged(View child) { 4995 postSendWindowContentChangedCallback(child); 4996 } 4997 4998 @Override 4999 public boolean canResolveLayoutDirection() { 5000 return true; 5001 } 5002 5003 @Override 5004 public boolean isLayoutDirectionResolved() { 5005 return true; 5006 } 5007 5008 @Override 5009 public int getLayoutDirection() { 5010 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 5011 } 5012 5013 @Override 5014 public boolean canResolveTextDirection() { 5015 return true; 5016 } 5017 5018 @Override 5019 public boolean isTextDirectionResolved() { 5020 return true; 5021 } 5022 5023 @Override 5024 public int getTextDirection() { 5025 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 5026 } 5027 5028 @Override 5029 public boolean canResolveTextAlignment() { 5030 return true; 5031 } 5032 5033 @Override 5034 public boolean isTextAlignmentResolved() { 5035 return true; 5036 } 5037 5038 @Override 5039 public int getTextAlignment() { 5040 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5041 } 5042 5043 private View getCommonPredecessor(View first, View second) { 5044 if (mAttachInfo != null) { 5045 if (mTempHashSet == null) { 5046 mTempHashSet = new HashSet<View>(); 5047 } 5048 HashSet<View> seen = mTempHashSet; 5049 seen.clear(); 5050 View firstCurrent = first; 5051 while (firstCurrent != null) { 5052 seen.add(firstCurrent); 5053 ViewParent firstCurrentParent = firstCurrent.mParent; 5054 if (firstCurrentParent instanceof View) { 5055 firstCurrent = (View) firstCurrentParent; 5056 } else { 5057 firstCurrent = null; 5058 } 5059 } 5060 View secondCurrent = second; 5061 while (secondCurrent != null) { 5062 if (seen.contains(secondCurrent)) { 5063 seen.clear(); 5064 return secondCurrent; 5065 } 5066 ViewParent secondCurrentParent = secondCurrent.mParent; 5067 if (secondCurrentParent instanceof View) { 5068 secondCurrent = (View) secondCurrentParent; 5069 } else { 5070 secondCurrent = null; 5071 } 5072 } 5073 seen.clear(); 5074 } 5075 return null; 5076 } 5077 5078 void checkThread() { 5079 if (mThread != Thread.currentThread()) { 5080 throw new CalledFromWrongThreadException( 5081 "Only the original thread that created a view hierarchy can touch its views."); 5082 } 5083 } 5084 5085 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5086 // ViewAncestor never intercepts touch event, so this can be a no-op 5087 } 5088 5089 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5090 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5091 if (rectangle != null) { 5092 mTempRect.set(rectangle); 5093 mTempRect.offset(0, -mCurScrollY); 5094 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5095 try { 5096 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5097 } catch (RemoteException re) { 5098 /* ignore */ 5099 } 5100 } 5101 return scrolled; 5102 } 5103 5104 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5105 // Do nothing. 5106 } 5107 5108 class TakenSurfaceHolder extends BaseSurfaceHolder { 5109 @Override 5110 public boolean onAllowLockCanvas() { 5111 return mDrawingAllowed; 5112 } 5113 5114 @Override 5115 public void onRelayoutContainer() { 5116 // Not currently interesting -- from changing between fixed and layout size. 5117 } 5118 5119 public void setFormat(int format) { 5120 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5121 } 5122 5123 public void setType(int type) { 5124 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5125 } 5126 5127 @Override 5128 public void onUpdateSurface() { 5129 // We take care of format and type changes on our own. 5130 throw new IllegalStateException("Shouldn't be here"); 5131 } 5132 5133 public boolean isCreating() { 5134 return mIsCreating; 5135 } 5136 5137 @Override 5138 public void setFixedSize(int width, int height) { 5139 throw new UnsupportedOperationException( 5140 "Currently only support sizing from layout"); 5141 } 5142 5143 public void setKeepScreenOn(boolean screenOn) { 5144 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5145 } 5146 } 5147 5148 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5149 private WeakReference<ViewRootImpl> mViewAncestor; 5150 5151 public InputMethodCallback(ViewRootImpl viewAncestor) { 5152 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5153 } 5154 5155 @Override 5156 public void finishedEvent(int seq, boolean handled) { 5157 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5158 if (viewAncestor != null) { 5159 viewAncestor.handleImeFinishedEvent(seq, handled); 5160 } 5161 } 5162 } 5163 5164 static class W extends IWindow.Stub { 5165 private final WeakReference<ViewRootImpl> mViewAncestor; 5166 private final IWindowSession mWindowSession; 5167 5168 W(ViewRootImpl viewAncestor) { 5169 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5170 mWindowSession = viewAncestor.mWindowSession; 5171 } 5172 5173 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5174 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5175 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5176 if (viewAncestor != null) { 5177 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5178 visibleInsets, reportDraw, newConfig); 5179 } 5180 } 5181 5182 @Override 5183 public void moved(int newX, int newY) { 5184 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5185 if (viewAncestor != null) { 5186 viewAncestor.dispatchMoved(newX, newY); 5187 } 5188 } 5189 5190 public void dispatchAppVisibility(boolean visible) { 5191 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5192 if (viewAncestor != null) { 5193 viewAncestor.dispatchAppVisibility(visible); 5194 } 5195 } 5196 5197 public void dispatchScreenState(boolean on) { 5198 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5199 if (viewAncestor != null) { 5200 viewAncestor.dispatchScreenStateChange(on); 5201 } 5202 } 5203 5204 public void dispatchGetNewSurface() { 5205 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5206 if (viewAncestor != null) { 5207 viewAncestor.dispatchGetNewSurface(); 5208 } 5209 } 5210 5211 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5212 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5213 if (viewAncestor != null) { 5214 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5215 } 5216 } 5217 5218 private static int checkCallingPermission(String permission) { 5219 try { 5220 return ActivityManagerNative.getDefault().checkPermission( 5221 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5222 } catch (RemoteException e) { 5223 return PackageManager.PERMISSION_DENIED; 5224 } 5225 } 5226 5227 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5228 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5229 if (viewAncestor != null) { 5230 final View view = viewAncestor.mView; 5231 if (view != null) { 5232 if (checkCallingPermission(Manifest.permission.DUMP) != 5233 PackageManager.PERMISSION_GRANTED) { 5234 throw new SecurityException("Insufficient permissions to invoke" 5235 + " executeCommand() from pid=" + Binder.getCallingPid() 5236 + ", uid=" + Binder.getCallingUid()); 5237 } 5238 5239 OutputStream clientStream = null; 5240 try { 5241 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5242 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5243 } catch (IOException e) { 5244 e.printStackTrace(); 5245 } finally { 5246 if (clientStream != null) { 5247 try { 5248 clientStream.close(); 5249 } catch (IOException e) { 5250 e.printStackTrace(); 5251 } 5252 } 5253 } 5254 } 5255 } 5256 } 5257 5258 public void closeSystemDialogs(String reason) { 5259 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5260 if (viewAncestor != null) { 5261 viewAncestor.dispatchCloseSystemDialogs(reason); 5262 } 5263 } 5264 5265 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5266 boolean sync) { 5267 if (sync) { 5268 try { 5269 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5270 } catch (RemoteException e) { 5271 } 5272 } 5273 } 5274 5275 public void dispatchWallpaperCommand(String action, int x, int y, 5276 int z, Bundle extras, boolean sync) { 5277 if (sync) { 5278 try { 5279 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5280 } catch (RemoteException e) { 5281 } 5282 } 5283 } 5284 5285 /* Drag/drop */ 5286 public void dispatchDragEvent(DragEvent event) { 5287 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5288 if (viewAncestor != null) { 5289 viewAncestor.dispatchDragEvent(event); 5290 } 5291 } 5292 5293 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5294 int localValue, int localChanges) { 5295 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5296 if (viewAncestor != null) { 5297 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5298 localValue, localChanges); 5299 } 5300 } 5301 5302 public void doneAnimating() { 5303 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5304 if (viewAncestor != null) { 5305 viewAncestor.dispatchDoneAnimating(); 5306 } 5307 } 5308 } 5309 5310 /** 5311 * Maintains state information for a single trackball axis, generating 5312 * discrete (DPAD) movements based on raw trackball motion. 5313 */ 5314 static final class TrackballAxis { 5315 /** 5316 * The maximum amount of acceleration we will apply. 5317 */ 5318 static final float MAX_ACCELERATION = 20; 5319 5320 /** 5321 * The maximum amount of time (in milliseconds) between events in order 5322 * for us to consider the user to be doing fast trackball movements, 5323 * and thus apply an acceleration. 5324 */ 5325 static final long FAST_MOVE_TIME = 150; 5326 5327 /** 5328 * Scaling factor to the time (in milliseconds) between events to how 5329 * much to multiple/divide the current acceleration. When movement 5330 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5331 * FAST_MOVE_TIME it divides it. 5332 */ 5333 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5334 5335 float position; 5336 float absPosition; 5337 float acceleration = 1; 5338 long lastMoveTime = 0; 5339 int step; 5340 int dir; 5341 int nonAccelMovement; 5342 5343 void reset(int _step) { 5344 position = 0; 5345 acceleration = 1; 5346 lastMoveTime = 0; 5347 step = _step; 5348 dir = 0; 5349 } 5350 5351 /** 5352 * Add trackball movement into the state. If the direction of movement 5353 * has been reversed, the state is reset before adding the 5354 * movement (so that you don't have to compensate for any previously 5355 * collected movement before see the result of the movement in the 5356 * new direction). 5357 * 5358 * @return Returns the absolute value of the amount of movement 5359 * collected so far. 5360 */ 5361 float collect(float off, long time, String axis) { 5362 long normTime; 5363 if (off > 0) { 5364 normTime = (long)(off * FAST_MOVE_TIME); 5365 if (dir < 0) { 5366 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5367 position = 0; 5368 step = 0; 5369 acceleration = 1; 5370 lastMoveTime = 0; 5371 } 5372 dir = 1; 5373 } else if (off < 0) { 5374 normTime = (long)((-off) * FAST_MOVE_TIME); 5375 if (dir > 0) { 5376 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5377 position = 0; 5378 step = 0; 5379 acceleration = 1; 5380 lastMoveTime = 0; 5381 } 5382 dir = -1; 5383 } else { 5384 normTime = 0; 5385 } 5386 5387 // The number of milliseconds between each movement that is 5388 // considered "normal" and will not result in any acceleration 5389 // or deceleration, scaled by the offset we have here. 5390 if (normTime > 0) { 5391 long delta = time - lastMoveTime; 5392 lastMoveTime = time; 5393 float acc = acceleration; 5394 if (delta < normTime) { 5395 // The user is scrolling rapidly, so increase acceleration. 5396 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5397 if (scale > 1) acc *= scale; 5398 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5399 + off + " normTime=" + normTime + " delta=" + delta 5400 + " scale=" + scale + " acc=" + acc); 5401 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5402 } else { 5403 // The user is scrolling slowly, so decrease acceleration. 5404 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5405 if (scale > 1) acc /= scale; 5406 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5407 + off + " normTime=" + normTime + " delta=" + delta 5408 + " scale=" + scale + " acc=" + acc); 5409 acceleration = acc > 1 ? acc : 1; 5410 } 5411 } 5412 position += off; 5413 return (absPosition = Math.abs(position)); 5414 } 5415 5416 /** 5417 * Generate the number of discrete movement events appropriate for 5418 * the currently collected trackball movement. 5419 * 5420 * @param precision The minimum movement required to generate the 5421 * first discrete movement. 5422 * 5423 * @return Returns the number of discrete movements, either positive 5424 * or negative, or 0 if there is not enough trackball movement yet 5425 * for a discrete movement. 5426 */ 5427 int generate(float precision) { 5428 int movement = 0; 5429 nonAccelMovement = 0; 5430 do { 5431 final int dir = position >= 0 ? 1 : -1; 5432 switch (step) { 5433 // If we are going to execute the first step, then we want 5434 // to do this as soon as possible instead of waiting for 5435 // a full movement, in order to make things look responsive. 5436 case 0: 5437 if (absPosition < precision) { 5438 return movement; 5439 } 5440 movement += dir; 5441 nonAccelMovement += dir; 5442 step = 1; 5443 break; 5444 // If we have generated the first movement, then we need 5445 // to wait for the second complete trackball motion before 5446 // generating the second discrete movement. 5447 case 1: 5448 if (absPosition < 2) { 5449 return movement; 5450 } 5451 movement += dir; 5452 nonAccelMovement += dir; 5453 position += dir > 0 ? -2 : 2; 5454 absPosition = Math.abs(position); 5455 step = 2; 5456 break; 5457 // After the first two, we generate discrete movements 5458 // consistently with the trackball, applying an acceleration 5459 // if the trackball is moving quickly. This is a simple 5460 // acceleration on top of what we already compute based 5461 // on how quickly the wheel is being turned, to apply 5462 // a longer increasing acceleration to continuous movement 5463 // in one direction. 5464 default: 5465 if (absPosition < 1) { 5466 return movement; 5467 } 5468 movement += dir; 5469 position += dir >= 0 ? -1 : 1; 5470 absPosition = Math.abs(position); 5471 float acc = acceleration; 5472 acc *= 1.1f; 5473 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5474 break; 5475 } 5476 } while (true); 5477 } 5478 } 5479 5480 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5481 public CalledFromWrongThreadException(String msg) { 5482 super(msg); 5483 } 5484 } 5485 5486 private SurfaceHolder mHolder = new SurfaceHolder() { 5487 // we only need a SurfaceHolder for opengl. it would be nice 5488 // to implement everything else though, especially the callback 5489 // support (opengl doesn't make use of it right now, but eventually 5490 // will). 5491 public Surface getSurface() { 5492 return mSurface; 5493 } 5494 5495 public boolean isCreating() { 5496 return false; 5497 } 5498 5499 public void addCallback(Callback callback) { 5500 } 5501 5502 public void removeCallback(Callback callback) { 5503 } 5504 5505 public void setFixedSize(int width, int height) { 5506 } 5507 5508 public void setSizeFromLayout() { 5509 } 5510 5511 public void setFormat(int format) { 5512 } 5513 5514 public void setType(int type) { 5515 } 5516 5517 public void setKeepScreenOn(boolean screenOn) { 5518 } 5519 5520 public Canvas lockCanvas() { 5521 return null; 5522 } 5523 5524 public Canvas lockCanvas(Rect dirty) { 5525 return null; 5526 } 5527 5528 public void unlockCanvasAndPost(Canvas canvas) { 5529 } 5530 public Rect getSurfaceFrame() { 5531 return null; 5532 } 5533 }; 5534 5535 static RunQueue getRunQueue() { 5536 RunQueue rq = sRunQueues.get(); 5537 if (rq != null) { 5538 return rq; 5539 } 5540 rq = new RunQueue(); 5541 sRunQueues.set(rq); 5542 return rq; 5543 } 5544 5545 /** 5546 * The run queue is used to enqueue pending work from Views when no Handler is 5547 * attached. The work is executed during the next call to performTraversals on 5548 * the thread. 5549 * @hide 5550 */ 5551 static final class RunQueue { 5552 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5553 5554 void post(Runnable action) { 5555 postDelayed(action, 0); 5556 } 5557 5558 void postDelayed(Runnable action, long delayMillis) { 5559 HandlerAction handlerAction = new HandlerAction(); 5560 handlerAction.action = action; 5561 handlerAction.delay = delayMillis; 5562 5563 synchronized (mActions) { 5564 mActions.add(handlerAction); 5565 } 5566 } 5567 5568 void removeCallbacks(Runnable action) { 5569 final HandlerAction handlerAction = new HandlerAction(); 5570 handlerAction.action = action; 5571 5572 synchronized (mActions) { 5573 final ArrayList<HandlerAction> actions = mActions; 5574 5575 while (actions.remove(handlerAction)) { 5576 // Keep going 5577 } 5578 } 5579 } 5580 5581 void executeActions(Handler handler) { 5582 synchronized (mActions) { 5583 final ArrayList<HandlerAction> actions = mActions; 5584 final int count = actions.size(); 5585 5586 for (int i = 0; i < count; i++) { 5587 final HandlerAction handlerAction = actions.get(i); 5588 handler.postDelayed(handlerAction.action, handlerAction.delay); 5589 } 5590 5591 actions.clear(); 5592 } 5593 } 5594 5595 private static class HandlerAction { 5596 Runnable action; 5597 long delay; 5598 5599 @Override 5600 public boolean equals(Object o) { 5601 if (this == o) return true; 5602 if (o == null || getClass() != o.getClass()) return false; 5603 5604 HandlerAction that = (HandlerAction) o; 5605 return !(action != null ? !action.equals(that.action) : that.action != null); 5606 5607 } 5608 5609 @Override 5610 public int hashCode() { 5611 int result = action != null ? action.hashCode() : 0; 5612 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5613 return result; 5614 } 5615 } 5616 } 5617 5618 /** 5619 * Class for managing the accessibility interaction connection 5620 * based on the global accessibility state. 5621 */ 5622 final class AccessibilityInteractionConnectionManager 5623 implements AccessibilityStateChangeListener { 5624 public void onAccessibilityStateChanged(boolean enabled) { 5625 if (enabled) { 5626 ensureConnection(); 5627 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5628 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5629 View focusedView = mView.findFocus(); 5630 if (focusedView != null && focusedView != mView) { 5631 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5632 } 5633 } 5634 } else { 5635 ensureNoConnection(); 5636 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5637 } 5638 } 5639 5640 public void ensureConnection() { 5641 if (mAttachInfo != null) { 5642 final boolean registered = 5643 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5644 if (!registered) { 5645 mAttachInfo.mAccessibilityWindowId = 5646 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5647 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5648 } 5649 } 5650 } 5651 5652 public void ensureNoConnection() { 5653 final boolean registered = 5654 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5655 if (registered) { 5656 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5657 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5658 } 5659 } 5660 } 5661 5662 /** 5663 * This class is an interface this ViewAncestor provides to the 5664 * AccessibilityManagerService to the latter can interact with 5665 * the view hierarchy in this ViewAncestor. 5666 */ 5667 static final class AccessibilityInteractionConnection 5668 extends IAccessibilityInteractionConnection.Stub { 5669 private final WeakReference<ViewRootImpl> mViewRootImpl; 5670 5671 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5672 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5673 } 5674 5675 @Override 5676 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5677 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5678 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5679 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5680 if (viewRootImpl != null && viewRootImpl.mView != null) { 5681 viewRootImpl.getAccessibilityInteractionController() 5682 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5683 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5684 spec); 5685 } else { 5686 // We cannot make the call and notify the caller so it does not wait. 5687 try { 5688 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5689 } catch (RemoteException re) { 5690 /* best effort - ignore */ 5691 } 5692 } 5693 } 5694 5695 @Override 5696 public void performAccessibilityAction(long accessibilityNodeId, int action, 5697 Bundle arguments, int interactionId, 5698 IAccessibilityInteractionConnectionCallback callback, int flags, 5699 int interogatingPid, long interrogatingTid) { 5700 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5701 if (viewRootImpl != null && viewRootImpl.mView != null) { 5702 viewRootImpl.getAccessibilityInteractionController() 5703 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5704 interactionId, callback, flags, interogatingPid, interrogatingTid); 5705 } else { 5706 // We cannot make the call and notify the caller so it does not wait. 5707 try { 5708 callback.setPerformAccessibilityActionResult(false, interactionId); 5709 } catch (RemoteException re) { 5710 /* best effort - ignore */ 5711 } 5712 } 5713 } 5714 5715 @Override 5716 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5717 String viewId, int interactionId, 5718 IAccessibilityInteractionConnectionCallback callback, int flags, 5719 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5720 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5721 if (viewRootImpl != null && viewRootImpl.mView != null) { 5722 viewRootImpl.getAccessibilityInteractionController() 5723 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5724 viewId, interactionId, callback, flags, interrogatingPid, 5725 interrogatingTid, spec); 5726 } else { 5727 // We cannot make the call and notify the caller so it does not wait. 5728 try { 5729 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5730 } catch (RemoteException re) { 5731 /* best effort - ignore */ 5732 } 5733 } 5734 } 5735 5736 @Override 5737 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5738 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5739 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5740 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5741 if (viewRootImpl != null && viewRootImpl.mView != null) { 5742 viewRootImpl.getAccessibilityInteractionController() 5743 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5744 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5745 spec); 5746 } else { 5747 // We cannot make the call and notify the caller so it does not wait. 5748 try { 5749 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5750 } catch (RemoteException re) { 5751 /* best effort - ignore */ 5752 } 5753 } 5754 } 5755 5756 @Override 5757 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5758 IAccessibilityInteractionConnectionCallback callback, int flags, 5759 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5760 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5761 if (viewRootImpl != null && viewRootImpl.mView != null) { 5762 viewRootImpl.getAccessibilityInteractionController() 5763 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5764 flags, interrogatingPid, interrogatingTid, spec); 5765 } else { 5766 // We cannot make the call and notify the caller so it does not wait. 5767 try { 5768 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5769 } catch (RemoteException re) { 5770 /* best effort - ignore */ 5771 } 5772 } 5773 } 5774 5775 @Override 5776 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5777 IAccessibilityInteractionConnectionCallback callback, int flags, 5778 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5779 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5780 if (viewRootImpl != null && viewRootImpl.mView != null) { 5781 viewRootImpl.getAccessibilityInteractionController() 5782 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5783 callback, flags, interrogatingPid, interrogatingTid, spec); 5784 } else { 5785 // We cannot make the call and notify the caller so it does not wait. 5786 try { 5787 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5788 } catch (RemoteException re) { 5789 /* best effort - ignore */ 5790 } 5791 } 5792 } 5793 } 5794 5795 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5796 public View mSource; 5797 5798 public void run() { 5799 if (mSource != null) { 5800 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5801 mSource.resetAccessibilityStateChanged(); 5802 mSource = null; 5803 } 5804 } 5805 } 5806} 5807