ViewRootImpl.java revision e55945e219dbf4664683a757c5a9d462c98f2e19
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 private static final boolean DEBUG_INPUT_PROCESSING = false || LOCAL_LOGV; 111 112 private static final boolean USE_RENDER_THREAD = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 130 131 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 132 static boolean sFirstDrawComplete = false; 133 134 static final ArrayList<ComponentCallbacks> sConfigCallbacks 135 = new ArrayList<ComponentCallbacks>(); 136 137 private static boolean sUseRenderThread = false; 138 private static boolean sRenderThreadQueried = false; 139 private static final Object[] sRenderThreadQueryLock = new Object[0]; 140 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 final String mBasePackageName; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 final SimulatedDpad mSimulatedDpad; 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 175 View mAccessibilityFocusedHost; 176 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 177 178 int mViewVisibility; 179 boolean mAppVisible = true; 180 int mOrigWindowType = -1; 181 182 // Set to true if the owner of this window is in the stopped state, 183 // so the window should no longer be active. 184 boolean mStopped = false; 185 186 boolean mLastInCompatMode = false; 187 188 SurfaceHolder.Callback2 mSurfaceHolderCallback; 189 BaseSurfaceHolder mSurfaceHolder; 190 boolean mIsCreating; 191 boolean mDrawingAllowed; 192 193 final Region mTransparentRegion; 194 final Region mPreviousTransparentRegion; 195 196 int mWidth; 197 int mHeight; 198 Rect mDirty; 199 final Rect mCurrentDirty = new Rect(); 200 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 int mTraversalBarrier; 216 boolean mWillDrawSoon; 217 /** Set to true while in performTraversals for detecting when die(true) is called from internal 218 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 219 boolean mIsInTraversal; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 boolean mLastOverscanRequested; 233 234 /** Event was not handled and is finished. 235 * @hide */ 236 public static final int EVENT_NOT_HANDLED = 0; 237 /** Event was handled and is finished. 238 * @hide */ 239 public static final int EVENT_HANDLED = 1; 240 /** Event is waiting on the IME. 241 * @hide */ 242 public static final int EVENT_PENDING_IME = 2; 243 /** Event requires post-IME dispatch. 244 * @hide */ 245 public static final int EVENT_POST_IME = 3; 246 247 // Pool of queued input events. 248 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 249 private QueuedInputEvent mQueuedInputEventPool; 250 private int mQueuedInputEventPoolSize; 251 252 /* Input event queue. 253 * Pending input events are input events waiting to be handled by the application. Current 254 * input events are input events which are being handled but are waiting on some action by the 255 * IME, even if they themselves may not need to be handled by the IME. 256 */ 257 QueuedInputEvent mPendingInputEventHead; 258 QueuedInputEvent mPendingInputEventTail; 259 int mPendingInputEventCount; 260 QueuedInputEvent mCurrentInputEventHead; 261 QueuedInputEvent mCurrentInputEventTail; 262 int mCurrentInputEventCount; 263 boolean mProcessInputEventsScheduled; 264 String mPendingInputEventQueueLengthCounterName = "pq"; 265 String mCurrentInputEventQueueLengthCounterName = "cq"; 266 267 boolean mWindowAttributesChanged = false; 268 int mWindowAttributesChangesFlag = 0; 269 270 // These can be accessed by any thread, must be protected with a lock. 271 // Surface can never be reassigned or cleared (use Surface.clear()). 272 private final Surface mSurface = new Surface(); 273 274 boolean mAdded; 275 boolean mAddedTouchMode; 276 277 final CompatibilityInfoHolder mCompatibilityInfo; 278 279 // These are accessed by multiple threads. 280 final Rect mWinFrame; // frame given by window manager. 281 282 final Rect mPendingOverscanInsets = new Rect(); 283 final Rect mPendingVisibleInsets = new Rect(); 284 final Rect mPendingContentInsets = new Rect(); 285 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 286 = new ViewTreeObserver.InternalInsetsInfo(); 287 288 final Rect mFitSystemWindowsInsets = new Rect(); 289 290 final Configuration mLastConfiguration = new Configuration(); 291 final Configuration mPendingConfiguration = new Configuration(); 292 293 boolean mScrollMayChange; 294 int mSoftInputMode; 295 WeakReference<View> mLastScrolledFocus; 296 int mScrollY; 297 int mCurScrollY; 298 Scroller mScroller; 299 HardwareLayer mResizeBuffer; 300 long mResizeBufferStartTime; 301 int mResizeBufferDuration; 302 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 303 private ArrayList<LayoutTransition> mPendingTransitions; 304 305 final ViewConfiguration mViewConfiguration; 306 307 /* Drag/drop */ 308 ClipDescription mDragDescription; 309 View mCurrentDragView; 310 volatile Object mLocalDragState; 311 final PointF mDragPoint = new PointF(); 312 final PointF mLastTouchPoint = new PointF(); 313 314 private boolean mProfileRendering; 315 private Choreographer.FrameCallback mRenderProfiler; 316 private boolean mRenderProfilingEnabled; 317 318 // Variables to track frames per second, enabled via DEBUG_FPS flag 319 private long mFpsStartTime = -1; 320 private long mFpsPrevTime = -1; 321 private int mFpsNumFrames; 322 323 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 324 325 /** 326 * see {@link #playSoundEffect(int)} 327 */ 328 AudioManager mAudioManager; 329 330 final AccessibilityManager mAccessibilityManager; 331 332 AccessibilityInteractionController mAccessibilityInteractionController; 333 334 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 335 336 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 337 338 HashSet<View> mTempHashSet; 339 340 private final int mDensity; 341 private final int mNoncompatDensity; 342 343 private boolean mInLayout = false; 344 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 345 boolean mHandlingLayoutInLayoutRequest = false; 346 347 private int mViewLayoutDirectionInitial; 348 349 /** 350 * Consistency verifier for debugging purposes. 351 */ 352 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 353 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 354 new InputEventConsistencyVerifier(this, 0) : null; 355 356 static final class SystemUiVisibilityInfo { 357 int seq; 358 int globalVisibility; 359 int localValue; 360 int localChanges; 361 } 362 363 public ViewRootImpl(Context context, Display display) { 364 super(); 365 366 if (MEASURE_LATENCY) { 367 if (lt == null) { 368 lt = new LatencyTimer(100, 1000); 369 } 370 } 371 372 // Initialize the statics when this class is first instantiated. This is 373 // done here instead of in the static block because Zygote does not 374 // allow the spawning of threads. 375 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 376 mDisplay = display; 377 mBasePackageName = context.getBasePackageName(); 378 379 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 380 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 381 382 mThread = Thread.currentThread(); 383 mLocation = new WindowLeaked(null); 384 mLocation.fillInStackTrace(); 385 mWidth = -1; 386 mHeight = -1; 387 mDirty = new Rect(); 388 mTempRect = new Rect(); 389 mVisRect = new Rect(); 390 mWinFrame = new Rect(); 391 mWindow = new W(this); 392 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 393 mInputMethodCallback = new InputMethodCallback(this); 394 mViewVisibility = View.GONE; 395 mTransparentRegion = new Region(); 396 mPreviousTransparentRegion = new Region(); 397 mFirst = true; // true for the first time the view is added 398 mAdded = false; 399 mAccessibilityManager = AccessibilityManager.getInstance(context); 400 mAccessibilityInteractionConnectionManager = 401 new AccessibilityInteractionConnectionManager(); 402 mAccessibilityManager.addAccessibilityStateChangeListener( 403 mAccessibilityInteractionConnectionManager); 404 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 405 mViewConfiguration = ViewConfiguration.get(context); 406 mDensity = context.getResources().getDisplayMetrics().densityDpi; 407 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 408 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 409 mChoreographer = Choreographer.getInstance(); 410 411 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 412 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 413 loadSystemProperties(); 414 mSimulatedDpad = new SimulatedDpad(context); 415 } 416 417 /** 418 * @return True if the application requests the use of a separate render thread, 419 * false otherwise 420 */ 421 private static boolean isRenderThreadRequested(Context context) { 422 if (USE_RENDER_THREAD) { 423 synchronized (sRenderThreadQueryLock) { 424 if (!sRenderThreadQueried) { 425 final PackageManager packageManager = context.getPackageManager(); 426 final String packageName = context.getApplicationInfo().packageName; 427 try { 428 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 429 PackageManager.GET_META_DATA); 430 if (applicationInfo.metaData != null) { 431 sUseRenderThread = applicationInfo.metaData.getBoolean( 432 "android.graphics.renderThread", false); 433 } 434 } catch (PackageManager.NameNotFoundException e) { 435 } finally { 436 sRenderThreadQueried = true; 437 } 438 } 439 return sUseRenderThread; 440 } 441 } else { 442 return false; 443 } 444 } 445 446 public static void addFirstDrawHandler(Runnable callback) { 447 synchronized (sFirstDrawHandlers) { 448 if (!sFirstDrawComplete) { 449 sFirstDrawHandlers.add(callback); 450 } 451 } 452 } 453 454 public static void addConfigCallback(ComponentCallbacks callback) { 455 synchronized (sConfigCallbacks) { 456 sConfigCallbacks.add(callback); 457 } 458 } 459 460 // FIXME for perf testing only 461 private boolean mProfile = false; 462 463 /** 464 * Call this to profile the next traversal call. 465 * FIXME for perf testing only. Remove eventually 466 */ 467 public void profile() { 468 mProfile = true; 469 } 470 471 /** 472 * Indicates whether we are in touch mode. Calling this method triggers an IPC 473 * call and should be avoided whenever possible. 474 * 475 * @return True, if the device is in touch mode, false otherwise. 476 * 477 * @hide 478 */ 479 static boolean isInTouchMode() { 480 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 481 if (windowSession != null) { 482 try { 483 return windowSession.getInTouchMode(); 484 } catch (RemoteException e) { 485 } 486 } 487 return false; 488 } 489 490 /** 491 * We have one child 492 */ 493 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 494 synchronized (this) { 495 if (mView == null) { 496 mView = view; 497 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 498 mFallbackEventHandler.setView(view); 499 mWindowAttributes.copyFrom(attrs); 500 if (mWindowAttributes.packageName == null) { 501 mWindowAttributes.packageName = mBasePackageName; 502 } 503 attrs = mWindowAttributes; 504 // Keep track of the actual window flags supplied by the client. 505 mClientWindowLayoutFlags = attrs.flags; 506 507 setAccessibilityFocus(null, null); 508 509 if (view instanceof RootViewSurfaceTaker) { 510 mSurfaceHolderCallback = 511 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 512 if (mSurfaceHolderCallback != null) { 513 mSurfaceHolder = new TakenSurfaceHolder(); 514 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 515 } 516 } 517 518 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 519 mTranslator = compatibilityInfo.getTranslator(); 520 521 // If the application owns the surface, don't enable hardware acceleration 522 if (mSurfaceHolder == null) { 523 enableHardwareAcceleration(mView.getContext(), attrs); 524 } 525 526 boolean restore = false; 527 if (mTranslator != null) { 528 mSurface.setCompatibilityTranslator(mTranslator); 529 restore = true; 530 attrs.backup(); 531 mTranslator.translateWindowLayout(attrs); 532 } 533 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 534 535 if (!compatibilityInfo.supportsScreen()) { 536 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 537 mLastInCompatMode = true; 538 } 539 540 mSoftInputMode = attrs.softInputMode; 541 mWindowAttributesChanged = true; 542 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 543 mAttachInfo.mRootView = view; 544 mAttachInfo.mScalingRequired = mTranslator != null; 545 mAttachInfo.mApplicationScale = 546 mTranslator == null ? 1.0f : mTranslator.applicationScale; 547 if (panelParentView != null) { 548 mAttachInfo.mPanelParentWindowToken 549 = panelParentView.getApplicationWindowToken(); 550 } 551 mAdded = true; 552 int res; /* = WindowManagerImpl.ADD_OKAY; */ 553 554 // Schedule the first layout -before- adding to the window 555 // manager, to make sure we do the relayout before receiving 556 // any other events from the system. 557 requestLayout(); 558 if ((mWindowAttributes.inputFeatures 559 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 560 mInputChannel = new InputChannel(); 561 } 562 try { 563 mOrigWindowType = mWindowAttributes.type; 564 mAttachInfo.mRecomputeGlobalAttributes = true; 565 collectViewAttributes(); 566 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 567 getHostVisibility(), mDisplay.getDisplayId(), 568 mAttachInfo.mContentInsets, mInputChannel); 569 } catch (RemoteException e) { 570 mAdded = false; 571 mView = null; 572 mAttachInfo.mRootView = null; 573 mInputChannel = null; 574 mFallbackEventHandler.setView(null); 575 unscheduleTraversals(); 576 setAccessibilityFocus(null, null); 577 throw new RuntimeException("Adding window failed", e); 578 } finally { 579 if (restore) { 580 attrs.restore(); 581 } 582 } 583 584 if (mTranslator != null) { 585 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 586 } 587 mPendingOverscanInsets.set(0, 0, 0, 0); 588 mPendingContentInsets.set(mAttachInfo.mContentInsets); 589 mPendingVisibleInsets.set(0, 0, 0, 0); 590 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 591 if (res < WindowManagerGlobal.ADD_OKAY) { 592 mAttachInfo.mRootView = null; 593 mAdded = false; 594 mFallbackEventHandler.setView(null); 595 unscheduleTraversals(); 596 setAccessibilityFocus(null, null); 597 switch (res) { 598 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 599 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 600 throw new WindowManager.BadTokenException( 601 "Unable to add window -- token " + attrs.token 602 + " is not valid; is your activity running?"); 603 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 604 throw new WindowManager.BadTokenException( 605 "Unable to add window -- token " + attrs.token 606 + " is not for an application"); 607 case WindowManagerGlobal.ADD_APP_EXITING: 608 throw new WindowManager.BadTokenException( 609 "Unable to add window -- app for token " + attrs.token 610 + " is exiting"); 611 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 612 throw new WindowManager.BadTokenException( 613 "Unable to add window -- window " + mWindow 614 + " has already been added"); 615 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 616 // Silently ignore -- we would have just removed it 617 // right away, anyway. 618 return; 619 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 620 throw new WindowManager.BadTokenException( 621 "Unable to add window " + mWindow + 622 " -- another window of this type already exists"); 623 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 624 throw new WindowManager.BadTokenException( 625 "Unable to add window " + mWindow + 626 " -- permission denied for this window type"); 627 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 628 throw new WindowManager.InvalidDisplayException( 629 "Unable to add window " + mWindow + 630 " -- the specified display can not be found"); 631 } 632 throw new RuntimeException( 633 "Unable to add window -- unknown error code " + res); 634 } 635 636 if (view instanceof RootViewSurfaceTaker) { 637 mInputQueueCallback = 638 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 639 } 640 if (mInputChannel != null) { 641 if (mInputQueueCallback != null) { 642 mInputQueue = new InputQueue(mInputChannel); 643 mInputQueueCallback.onInputQueueCreated(mInputQueue); 644 } else { 645 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 646 Looper.myLooper()); 647 } 648 } 649 650 view.assignParent(this); 651 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 652 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 653 654 if (mAccessibilityManager.isEnabled()) { 655 mAccessibilityInteractionConnectionManager.ensureConnection(); 656 } 657 658 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 659 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 660 } 661 662 mPendingInputEventQueueLengthCounterName = "pq:" + attrs.getTitle(); 663 mCurrentInputEventQueueLengthCounterName = "cq:" + attrs.getTitle(); 664 } 665 } 666 } 667 668 void destroyHardwareResources() { 669 if (mAttachInfo.mHardwareRenderer != null) { 670 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 671 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 672 } 673 mAttachInfo.mHardwareRenderer.destroy(false); 674 } 675 } 676 677 void terminateHardwareResources() { 678 if (mAttachInfo.mHardwareRenderer != null) { 679 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 680 mAttachInfo.mHardwareRenderer.destroy(false); 681 } 682 } 683 684 void destroyHardwareLayers() { 685 if (mThread != Thread.currentThread()) { 686 if (mAttachInfo.mHardwareRenderer != null && 687 mAttachInfo.mHardwareRenderer.isEnabled()) { 688 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 689 } 690 } else { 691 if (mAttachInfo.mHardwareRenderer != null && 692 mAttachInfo.mHardwareRenderer.isEnabled()) { 693 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 694 } 695 } 696 } 697 698 void pushHardwareLayerUpdate(HardwareLayer layer) { 699 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 700 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 701 } 702 } 703 704 public boolean attachFunctor(int functor) { 705 //noinspection SimplifiableIfStatement 706 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 707 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 708 } 709 return false; 710 } 711 712 public void detachFunctor(int functor) { 713 if (mAttachInfo.mHardwareRenderer != null) { 714 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 715 } 716 } 717 718 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 719 mAttachInfo.mHardwareAccelerated = false; 720 mAttachInfo.mHardwareAccelerationRequested = false; 721 722 // Don't enable hardware acceleration when the application is in compatibility mode 723 if (mTranslator != null) return; 724 725 // Try to enable hardware acceleration if requested 726 final boolean hardwareAccelerated = 727 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 728 729 if (hardwareAccelerated) { 730 if (!HardwareRenderer.isAvailable()) { 731 return; 732 } 733 734 // Persistent processes (including the system) should not do 735 // accelerated rendering on low-end devices. In that case, 736 // sRendererDisabled will be set. In addition, the system process 737 // itself should never do accelerated rendering. In that case, both 738 // sRendererDisabled and sSystemRendererDisabled are set. When 739 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 740 // can be used by code on the system process to escape that and enable 741 // HW accelerated drawing. (This is basically for the lock screen.) 742 743 final boolean fakeHwAccelerated = (attrs.privateFlags & 744 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 745 final boolean forceHwAccelerated = (attrs.privateFlags & 746 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 747 748 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 749 && forceHwAccelerated)) { 750 // Don't enable hardware acceleration when we're not on the main thread 751 if (!HardwareRenderer.sSystemRendererDisabled && 752 Looper.getMainLooper() != Looper.myLooper()) { 753 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 754 + "acceleration outside of the main thread, aborting"); 755 return; 756 } 757 758 final boolean renderThread = isRenderThreadRequested(context); 759 if (renderThread) { 760 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 761 } 762 763 if (mAttachInfo.mHardwareRenderer != null) { 764 mAttachInfo.mHardwareRenderer.destroy(true); 765 } 766 767 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 768 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 769 if (mAttachInfo.mHardwareRenderer != null) { 770 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 771 mAttachInfo.mHardwareAccelerated = 772 mAttachInfo.mHardwareAccelerationRequested = true; 773 } 774 } else if (fakeHwAccelerated) { 775 // The window had wanted to use hardware acceleration, but this 776 // is not allowed in its process. By setting this flag, it can 777 // still render as if it was accelerated. This is basically for 778 // the preview windows the window manager shows for launching 779 // applications, so they will look more like the app being launched. 780 mAttachInfo.mHardwareAccelerationRequested = true; 781 } 782 } 783 } 784 785 public View getView() { 786 return mView; 787 } 788 789 final WindowLeaked getLocation() { 790 return mLocation; 791 } 792 793 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 794 synchronized (this) { 795 int oldSoftInputMode = mWindowAttributes.softInputMode; 796 // Keep track of the actual window flags supplied by the client. 797 mClientWindowLayoutFlags = attrs.flags; 798 // preserve compatible window flag if exists. 799 int compatibleWindowFlag = 800 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 801 // transfer over system UI visibility values as they carry current state. 802 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 803 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 804 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 805 if (mWindowAttributes.packageName == null) { 806 mWindowAttributes.packageName = mBasePackageName; 807 } 808 mWindowAttributes.flags |= compatibleWindowFlag; 809 810 applyKeepScreenOnFlag(mWindowAttributes); 811 812 if (newView) { 813 mSoftInputMode = attrs.softInputMode; 814 requestLayout(); 815 } 816 // Don't lose the mode we last auto-computed. 817 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 818 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 819 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 820 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 821 | (oldSoftInputMode 822 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 823 } 824 mWindowAttributesChanged = true; 825 scheduleTraversals(); 826 } 827 } 828 829 void handleAppVisibility(boolean visible) { 830 if (mAppVisible != visible) { 831 mAppVisible = visible; 832 scheduleTraversals(); 833 } 834 } 835 836 void handleGetNewSurface() { 837 mNewSurfaceNeeded = true; 838 mFullRedrawNeeded = true; 839 scheduleTraversals(); 840 } 841 842 void handleScreenStateChange(boolean on) { 843 if (on != mAttachInfo.mScreenOn) { 844 mAttachInfo.mScreenOn = on; 845 if (mView != null) { 846 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 847 } 848 if (on) { 849 mFullRedrawNeeded = true; 850 scheduleTraversals(); 851 } 852 } 853 } 854 855 @Override 856 public void requestFitSystemWindows() { 857 checkThread(); 858 mFitSystemWindowsRequested = true; 859 scheduleTraversals(); 860 } 861 862 @Override 863 public void requestLayout() { 864 if (!mHandlingLayoutInLayoutRequest) { 865 checkThread(); 866 mLayoutRequested = true; 867 scheduleTraversals(); 868 } 869 } 870 871 @Override 872 public boolean isLayoutRequested() { 873 return mLayoutRequested; 874 } 875 876 void invalidate() { 877 mDirty.set(0, 0, mWidth, mHeight); 878 scheduleTraversals(); 879 } 880 881 void invalidateWorld(View view) { 882 view.invalidate(); 883 if (view instanceof ViewGroup) { 884 ViewGroup parent = (ViewGroup) view; 885 for (int i = 0; i < parent.getChildCount(); i++) { 886 invalidateWorld(parent.getChildAt(i)); 887 } 888 } 889 } 890 891 @Override 892 public void invalidateChild(View child, Rect dirty) { 893 invalidateChildInParent(null, dirty); 894 } 895 896 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 897 checkThread(); 898 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 899 900 if (dirty == null) { 901 invalidate(); 902 return null; 903 } else if (dirty.isEmpty() && !mIsAnimating) { 904 return null; 905 } 906 907 if (mCurScrollY != 0 || mTranslator != null) { 908 mTempRect.set(dirty); 909 dirty = mTempRect; 910 if (mCurScrollY != 0) { 911 dirty.offset(0, -mCurScrollY); 912 } 913 if (mTranslator != null) { 914 mTranslator.translateRectInAppWindowToScreen(dirty); 915 } 916 if (mAttachInfo.mScalingRequired) { 917 dirty.inset(-1, -1); 918 } 919 } 920 921 final Rect localDirty = mDirty; 922 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 923 mAttachInfo.mSetIgnoreDirtyState = true; 924 mAttachInfo.mIgnoreDirtyState = true; 925 } 926 927 // Add the new dirty rect to the current one 928 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 929 // Intersect with the bounds of the window to skip 930 // updates that lie outside of the visible region 931 final float appScale = mAttachInfo.mApplicationScale; 932 final boolean intersected = localDirty.intersect(0, 0, 933 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 934 if (!intersected) { 935 localDirty.setEmpty(); 936 } 937 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 938 scheduleTraversals(); 939 } 940 941 return null; 942 } 943 944 void setStopped(boolean stopped) { 945 if (mStopped != stopped) { 946 mStopped = stopped; 947 if (!stopped) { 948 scheduleTraversals(); 949 } 950 } 951 } 952 953 public ViewParent getParent() { 954 return null; 955 } 956 957 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 958 if (child != mView) { 959 throw new RuntimeException("child is not mine, honest!"); 960 } 961 // Note: don't apply scroll offset, because we want to know its 962 // visibility in the virtual canvas being given to the view hierarchy. 963 return r.intersect(0, 0, mWidth, mHeight); 964 } 965 966 public void bringChildToFront(View child) { 967 } 968 969 int getHostVisibility() { 970 return mAppVisible ? mView.getVisibility() : View.GONE; 971 } 972 973 void disposeResizeBuffer() { 974 if (mResizeBuffer != null) { 975 mResizeBuffer.destroy(); 976 mResizeBuffer = null; 977 } 978 } 979 980 /** 981 * Add LayoutTransition to the list of transitions to be started in the next traversal. 982 * This list will be cleared after the transitions on the list are start()'ed. These 983 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 984 * happens during the layout phase of traversal, which we want to complete before any of the 985 * animations are started (because those animations may side-effect properties that layout 986 * depends upon, like the bounding rectangles of the affected views). So we add the transition 987 * to the list and it is started just prior to starting the drawing phase of traversal. 988 * 989 * @param transition The LayoutTransition to be started on the next traversal. 990 * 991 * @hide 992 */ 993 public void requestTransitionStart(LayoutTransition transition) { 994 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 995 if (mPendingTransitions == null) { 996 mPendingTransitions = new ArrayList<LayoutTransition>(); 997 } 998 mPendingTransitions.add(transition); 999 } 1000 } 1001 1002 void scheduleTraversals() { 1003 if (!mTraversalScheduled) { 1004 mTraversalScheduled = true; 1005 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 1006 mChoreographer.postCallback( 1007 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1008 scheduleConsumeBatchedInput(); 1009 } 1010 } 1011 1012 void unscheduleTraversals() { 1013 if (mTraversalScheduled) { 1014 mTraversalScheduled = false; 1015 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1016 mChoreographer.removeCallbacks( 1017 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1018 } 1019 } 1020 1021 void doTraversal() { 1022 if (mTraversalScheduled) { 1023 mTraversalScheduled = false; 1024 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1025 1026 if (mProfile) { 1027 Debug.startMethodTracing("ViewAncestor"); 1028 } 1029 1030 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1031 try { 1032 performTraversals(); 1033 } finally { 1034 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1035 } 1036 1037 if (mProfile) { 1038 Debug.stopMethodTracing(); 1039 mProfile = false; 1040 } 1041 } 1042 } 1043 1044 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1045 // Update window's global keep screen on flag: if a view has requested 1046 // that the screen be kept on, then it is always set; otherwise, it is 1047 // set to whatever the client last requested for the global state. 1048 if (mAttachInfo.mKeepScreenOn) { 1049 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1050 } else { 1051 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1052 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1053 } 1054 } 1055 1056 private boolean collectViewAttributes() { 1057 final View.AttachInfo attachInfo = mAttachInfo; 1058 if (attachInfo.mRecomputeGlobalAttributes) { 1059 //Log.i(TAG, "Computing view hierarchy attributes!"); 1060 attachInfo.mRecomputeGlobalAttributes = false; 1061 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1062 attachInfo.mKeepScreenOn = false; 1063 attachInfo.mSystemUiVisibility = 0; 1064 attachInfo.mHasSystemUiListeners = false; 1065 mView.dispatchCollectViewAttributes(attachInfo, 0); 1066 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1067 WindowManager.LayoutParams params = mWindowAttributes; 1068 if (attachInfo.mKeepScreenOn != oldScreenOn 1069 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1070 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1071 applyKeepScreenOnFlag(params); 1072 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1073 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1074 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1075 return true; 1076 } 1077 } 1078 return false; 1079 } 1080 1081 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1082 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1083 int childWidthMeasureSpec; 1084 int childHeightMeasureSpec; 1085 boolean windowSizeMayChange = false; 1086 1087 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1088 "Measuring " + host + " in display " + desiredWindowWidth 1089 + "x" + desiredWindowHeight + "..."); 1090 1091 boolean goodMeasure = false; 1092 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1093 // On large screens, we don't want to allow dialogs to just 1094 // stretch to fill the entire width of the screen to display 1095 // one line of text. First try doing the layout at a smaller 1096 // size to see if it will fit. 1097 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1098 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1099 int baseSize = 0; 1100 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1101 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1102 } 1103 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1104 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1105 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1106 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1107 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1108 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1109 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1110 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1111 goodMeasure = true; 1112 } else { 1113 // Didn't fit in that size... try expanding a bit. 1114 baseSize = (baseSize+desiredWindowWidth)/2; 1115 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1116 + baseSize); 1117 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1118 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1119 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1120 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1121 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1122 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1123 goodMeasure = true; 1124 } 1125 } 1126 } 1127 } 1128 1129 if (!goodMeasure) { 1130 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1131 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1132 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1133 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1134 windowSizeMayChange = true; 1135 } 1136 } 1137 1138 if (DBG) { 1139 System.out.println("======================================"); 1140 System.out.println("performTraversals -- after measure"); 1141 host.debug(); 1142 } 1143 1144 return windowSizeMayChange; 1145 } 1146 1147 private void performTraversals() { 1148 // cache mView since it is used so much below... 1149 final View host = mView; 1150 1151 if (DBG) { 1152 System.out.println("======================================"); 1153 System.out.println("performTraversals"); 1154 host.debug(); 1155 } 1156 1157 if (host == null || !mAdded) 1158 return; 1159 1160 mIsInTraversal = true; 1161 mWillDrawSoon = true; 1162 boolean windowSizeMayChange = false; 1163 boolean newSurface = false; 1164 boolean surfaceChanged = false; 1165 WindowManager.LayoutParams lp = mWindowAttributes; 1166 1167 int desiredWindowWidth; 1168 int desiredWindowHeight; 1169 1170 final View.AttachInfo attachInfo = mAttachInfo; 1171 1172 final int viewVisibility = getHostVisibility(); 1173 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1174 || mNewSurfaceNeeded; 1175 1176 WindowManager.LayoutParams params = null; 1177 if (mWindowAttributesChanged) { 1178 mWindowAttributesChanged = false; 1179 surfaceChanged = true; 1180 params = lp; 1181 } 1182 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1183 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1184 params = lp; 1185 mFullRedrawNeeded = true; 1186 mLayoutRequested = true; 1187 if (mLastInCompatMode) { 1188 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1189 mLastInCompatMode = false; 1190 } else { 1191 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1192 mLastInCompatMode = true; 1193 } 1194 } 1195 1196 mWindowAttributesChangesFlag = 0; 1197 1198 Rect frame = mWinFrame; 1199 if (mFirst) { 1200 mFullRedrawNeeded = true; 1201 mLayoutRequested = true; 1202 1203 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1204 // NOTE -- system code, won't try to do compat mode. 1205 Point size = new Point(); 1206 mDisplay.getRealSize(size); 1207 desiredWindowWidth = size.x; 1208 desiredWindowHeight = size.y; 1209 } else { 1210 DisplayMetrics packageMetrics = 1211 mView.getContext().getResources().getDisplayMetrics(); 1212 desiredWindowWidth = packageMetrics.widthPixels; 1213 desiredWindowHeight = packageMetrics.heightPixels; 1214 } 1215 1216 // For the very first time, tell the view hierarchy that it 1217 // is attached to the window. Note that at this point the surface 1218 // object is not initialized to its backing store, but soon it 1219 // will be (assuming the window is visible). 1220 attachInfo.mSurface = mSurface; 1221 // We used to use the following condition to choose 32 bits drawing caches: 1222 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1223 // However, windows are now always 32 bits by default, so choose 32 bits 1224 attachInfo.mUse32BitDrawingCache = true; 1225 attachInfo.mHasWindowFocus = false; 1226 attachInfo.mWindowVisibility = viewVisibility; 1227 attachInfo.mRecomputeGlobalAttributes = false; 1228 viewVisibilityChanged = false; 1229 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1230 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1231 // Set the layout direction if it has not been set before (inherit is the default) 1232 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1233 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1234 } 1235 host.dispatchAttachedToWindow(attachInfo, 0); 1236 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1237 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1238 host.fitSystemWindows(mFitSystemWindowsInsets); 1239 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1240 1241 } else { 1242 desiredWindowWidth = frame.width(); 1243 desiredWindowHeight = frame.height(); 1244 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1245 if (DEBUG_ORIENTATION) Log.v(TAG, 1246 "View " + host + " resized to: " + frame); 1247 mFullRedrawNeeded = true; 1248 mLayoutRequested = true; 1249 windowSizeMayChange = true; 1250 } 1251 } 1252 1253 if (viewVisibilityChanged) { 1254 attachInfo.mWindowVisibility = viewVisibility; 1255 host.dispatchWindowVisibilityChanged(viewVisibility); 1256 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1257 destroyHardwareResources(); 1258 } 1259 if (viewVisibility == View.GONE) { 1260 // After making a window gone, we will count it as being 1261 // shown for the first time the next time it gets focus. 1262 mHasHadWindowFocus = false; 1263 } 1264 } 1265 1266 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1267 getRunQueue().executeActions(attachInfo.mHandler); 1268 1269 boolean insetsChanged = false; 1270 1271 boolean layoutRequested = mLayoutRequested && !mStopped; 1272 if (layoutRequested) { 1273 1274 final Resources res = mView.getContext().getResources(); 1275 1276 if (mFirst) { 1277 // make sure touch mode code executes by setting cached value 1278 // to opposite of the added touch mode. 1279 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1280 ensureTouchModeLocally(mAddedTouchMode); 1281 } else { 1282 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1283 insetsChanged = true; 1284 } 1285 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1286 insetsChanged = true; 1287 } 1288 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1289 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1290 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1291 + mAttachInfo.mVisibleInsets); 1292 } 1293 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1294 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1295 windowSizeMayChange = true; 1296 1297 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1298 // NOTE -- system code, won't try to do compat mode. 1299 Point size = new Point(); 1300 mDisplay.getRealSize(size); 1301 desiredWindowWidth = size.x; 1302 desiredWindowHeight = size.y; 1303 } else { 1304 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1305 desiredWindowWidth = packageMetrics.widthPixels; 1306 desiredWindowHeight = packageMetrics.heightPixels; 1307 } 1308 } 1309 } 1310 1311 // Ask host how big it wants to be 1312 windowSizeMayChange |= measureHierarchy(host, lp, res, 1313 desiredWindowWidth, desiredWindowHeight); 1314 } 1315 1316 if (collectViewAttributes()) { 1317 params = lp; 1318 } 1319 if (attachInfo.mForceReportNewAttributes) { 1320 attachInfo.mForceReportNewAttributes = false; 1321 params = lp; 1322 } 1323 1324 if (mFirst || attachInfo.mViewVisibilityChanged) { 1325 attachInfo.mViewVisibilityChanged = false; 1326 int resizeMode = mSoftInputMode & 1327 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1328 // If we are in auto resize mode, then we need to determine 1329 // what mode to use now. 1330 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1331 final int N = attachInfo.mScrollContainers.size(); 1332 for (int i=0; i<N; i++) { 1333 if (attachInfo.mScrollContainers.get(i).isShown()) { 1334 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1335 } 1336 } 1337 if (resizeMode == 0) { 1338 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1339 } 1340 if ((lp.softInputMode & 1341 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1342 lp.softInputMode = (lp.softInputMode & 1343 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1344 resizeMode; 1345 params = lp; 1346 } 1347 } 1348 } 1349 1350 if (params != null) { 1351 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1352 if (!PixelFormat.formatHasAlpha(params.format)) { 1353 params.format = PixelFormat.TRANSLUCENT; 1354 } 1355 } 1356 mAttachInfo.mOverscanRequested = (params.flags 1357 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1358 } 1359 1360 if (mFitSystemWindowsRequested) { 1361 mFitSystemWindowsRequested = false; 1362 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1363 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1364 host.fitSystemWindows(mFitSystemWindowsInsets); 1365 if (mLayoutRequested) { 1366 // Short-circuit catching a new layout request here, so 1367 // we don't need to go through two layout passes when things 1368 // change due to fitting system windows, which can happen a lot. 1369 windowSizeMayChange |= measureHierarchy(host, lp, 1370 mView.getContext().getResources(), 1371 desiredWindowWidth, desiredWindowHeight); 1372 } 1373 } 1374 1375 if (layoutRequested) { 1376 // Clear this now, so that if anything requests a layout in the 1377 // rest of this function we will catch it and re-run a full 1378 // layout pass. 1379 mLayoutRequested = false; 1380 } 1381 1382 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1383 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1384 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1385 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1386 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1387 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1388 1389 final boolean computesInternalInsets = 1390 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1391 1392 boolean insetsPending = false; 1393 int relayoutResult = 0; 1394 1395 if (mFirst || windowShouldResize || insetsChanged || 1396 viewVisibilityChanged || params != null) { 1397 1398 if (viewVisibility == View.VISIBLE) { 1399 // If this window is giving internal insets to the window 1400 // manager, and it is being added or changing its visibility, 1401 // then we want to first give the window manager "fake" 1402 // insets to cause it to effectively ignore the content of 1403 // the window during layout. This avoids it briefly causing 1404 // other windows to resize/move based on the raw frame of the 1405 // window, waiting until we can finish laying out this window 1406 // and get back to the window manager with the ultimately 1407 // computed insets. 1408 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1409 } 1410 1411 if (mSurfaceHolder != null) { 1412 mSurfaceHolder.mSurfaceLock.lock(); 1413 mDrawingAllowed = true; 1414 } 1415 1416 boolean hwInitialized = false; 1417 boolean contentInsetsChanged = false; 1418 boolean hadSurface = mSurface.isValid(); 1419 1420 try { 1421 if (DEBUG_LAYOUT) { 1422 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1423 host.getMeasuredHeight() + ", params=" + params); 1424 } 1425 1426 final int surfaceGenerationId = mSurface.getGenerationId(); 1427 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1428 1429 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1430 + " overscan=" + mPendingOverscanInsets.toShortString() 1431 + " content=" + mPendingContentInsets.toShortString() 1432 + " visible=" + mPendingVisibleInsets.toShortString() 1433 + " surface=" + mSurface); 1434 1435 if (mPendingConfiguration.seq != 0) { 1436 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1437 + mPendingConfiguration); 1438 updateConfiguration(mPendingConfiguration, !mFirst); 1439 mPendingConfiguration.seq = 0; 1440 } 1441 1442 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1443 mAttachInfo.mOverscanInsets); 1444 contentInsetsChanged = !mPendingContentInsets.equals( 1445 mAttachInfo.mContentInsets); 1446 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1447 mAttachInfo.mVisibleInsets); 1448 if (contentInsetsChanged) { 1449 if (mWidth > 0 && mHeight > 0 && lp != null && 1450 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1451 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1452 mSurface != null && mSurface.isValid() && 1453 !mAttachInfo.mTurnOffWindowResizeAnim && 1454 mAttachInfo.mHardwareRenderer != null && 1455 mAttachInfo.mHardwareRenderer.isEnabled() && 1456 mAttachInfo.mHardwareRenderer.validate() && 1457 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1458 1459 disposeResizeBuffer(); 1460 1461 boolean completed = false; 1462 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1463 HardwareCanvas layerCanvas = null; 1464 try { 1465 if (mResizeBuffer == null) { 1466 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1467 mWidth, mHeight, false); 1468 } else if (mResizeBuffer.getWidth() != mWidth || 1469 mResizeBuffer.getHeight() != mHeight) { 1470 mResizeBuffer.resize(mWidth, mHeight); 1471 } 1472 // TODO: should handle create/resize failure 1473 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1474 final int restoreCount = layerCanvas.save(); 1475 1476 int yoff; 1477 final boolean scrolling = mScroller != null 1478 && mScroller.computeScrollOffset(); 1479 if (scrolling) { 1480 yoff = mScroller.getCurrY(); 1481 mScroller.abortAnimation(); 1482 } else { 1483 yoff = mScrollY; 1484 } 1485 1486 layerCanvas.translate(0, -yoff); 1487 if (mTranslator != null) { 1488 mTranslator.translateCanvas(layerCanvas); 1489 } 1490 1491 DisplayList displayList = mView.mDisplayList; 1492 if (displayList != null) { 1493 layerCanvas.drawDisplayList(displayList, null, 1494 DisplayList.FLAG_CLIP_CHILDREN); 1495 } else { 1496 mView.draw(layerCanvas); 1497 } 1498 1499 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1500 1501 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1502 mResizeBufferDuration = mView.getResources().getInteger( 1503 com.android.internal.R.integer.config_mediumAnimTime); 1504 completed = true; 1505 1506 layerCanvas.restoreToCount(restoreCount); 1507 } catch (OutOfMemoryError e) { 1508 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1509 } finally { 1510 if (mResizeBuffer != null) { 1511 mResizeBuffer.end(hwRendererCanvas); 1512 if (!completed) { 1513 mResizeBuffer.destroy(); 1514 mResizeBuffer = null; 1515 } 1516 } 1517 } 1518 } 1519 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1520 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1521 + mAttachInfo.mContentInsets); 1522 } 1523 if (overscanInsetsChanged) { 1524 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1525 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1526 + mAttachInfo.mOverscanInsets); 1527 // Need to relayout with content insets. 1528 contentInsetsChanged = true; 1529 } 1530 if (contentInsetsChanged || mLastSystemUiVisibility != 1531 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1532 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1533 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1534 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1535 mFitSystemWindowsRequested = false; 1536 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1537 host.fitSystemWindows(mFitSystemWindowsInsets); 1538 } 1539 if (visibleInsetsChanged) { 1540 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1541 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1542 + mAttachInfo.mVisibleInsets); 1543 } 1544 1545 if (!hadSurface) { 1546 if (mSurface.isValid()) { 1547 // If we are creating a new surface, then we need to 1548 // completely redraw it. Also, when we get to the 1549 // point of drawing it we will hold off and schedule 1550 // a new traversal instead. This is so we can tell the 1551 // window manager about all of the windows being displayed 1552 // before actually drawing them, so it can display then 1553 // all at once. 1554 newSurface = true; 1555 mFullRedrawNeeded = true; 1556 mPreviousTransparentRegion.setEmpty(); 1557 1558 if (mAttachInfo.mHardwareRenderer != null) { 1559 try { 1560 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1561 mHolder.getSurface()); 1562 } catch (Surface.OutOfResourcesException e) { 1563 handleOutOfResourcesException(e); 1564 return; 1565 } 1566 } 1567 } 1568 } else if (!mSurface.isValid()) { 1569 // If the surface has been removed, then reset the scroll 1570 // positions. 1571 if (mLastScrolledFocus != null) { 1572 mLastScrolledFocus.clear(); 1573 } 1574 mScrollY = mCurScrollY = 0; 1575 if (mScroller != null) { 1576 mScroller.abortAnimation(); 1577 } 1578 disposeResizeBuffer(); 1579 // Our surface is gone 1580 if (mAttachInfo.mHardwareRenderer != null && 1581 mAttachInfo.mHardwareRenderer.isEnabled()) { 1582 mAttachInfo.mHardwareRenderer.destroy(true); 1583 } 1584 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1585 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1586 mFullRedrawNeeded = true; 1587 try { 1588 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1589 } catch (Surface.OutOfResourcesException e) { 1590 handleOutOfResourcesException(e); 1591 return; 1592 } 1593 } 1594 } catch (RemoteException e) { 1595 } 1596 1597 if (DEBUG_ORIENTATION) Log.v( 1598 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1599 1600 attachInfo.mWindowLeft = frame.left; 1601 attachInfo.mWindowTop = frame.top; 1602 1603 // !!FIXME!! This next section handles the case where we did not get the 1604 // window size we asked for. We should avoid this by getting a maximum size from 1605 // the window session beforehand. 1606 if (mWidth != frame.width() || mHeight != frame.height()) { 1607 mWidth = frame.width(); 1608 mHeight = frame.height(); 1609 } 1610 1611 if (mSurfaceHolder != null) { 1612 // The app owns the surface; tell it about what is going on. 1613 if (mSurface.isValid()) { 1614 // XXX .copyFrom() doesn't work! 1615 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1616 mSurfaceHolder.mSurface = mSurface; 1617 } 1618 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1619 mSurfaceHolder.mSurfaceLock.unlock(); 1620 if (mSurface.isValid()) { 1621 if (!hadSurface) { 1622 mSurfaceHolder.ungetCallbacks(); 1623 1624 mIsCreating = true; 1625 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1626 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1627 if (callbacks != null) { 1628 for (SurfaceHolder.Callback c : callbacks) { 1629 c.surfaceCreated(mSurfaceHolder); 1630 } 1631 } 1632 surfaceChanged = true; 1633 } 1634 if (surfaceChanged) { 1635 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1636 lp.format, mWidth, mHeight); 1637 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1638 if (callbacks != null) { 1639 for (SurfaceHolder.Callback c : callbacks) { 1640 c.surfaceChanged(mSurfaceHolder, lp.format, 1641 mWidth, mHeight); 1642 } 1643 } 1644 } 1645 mIsCreating = false; 1646 } else if (hadSurface) { 1647 mSurfaceHolder.ungetCallbacks(); 1648 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1649 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1650 if (callbacks != null) { 1651 for (SurfaceHolder.Callback c : callbacks) { 1652 c.surfaceDestroyed(mSurfaceHolder); 1653 } 1654 } 1655 mSurfaceHolder.mSurfaceLock.lock(); 1656 try { 1657 mSurfaceHolder.mSurface = new Surface(); 1658 } finally { 1659 mSurfaceHolder.mSurfaceLock.unlock(); 1660 } 1661 } 1662 } 1663 1664 if (mAttachInfo.mHardwareRenderer != null && 1665 mAttachInfo.mHardwareRenderer.isEnabled()) { 1666 if (hwInitialized || windowShouldResize || 1667 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1668 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1669 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1670 if (!hwInitialized) { 1671 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1672 mFullRedrawNeeded = true; 1673 } 1674 } 1675 } 1676 1677 if (!mStopped) { 1678 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1679 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1680 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1681 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1682 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1683 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1684 1685 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1686 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1687 + " mHeight=" + mHeight 1688 + " measuredHeight=" + host.getMeasuredHeight() 1689 + " coveredInsetsChanged=" + contentInsetsChanged); 1690 1691 // Ask host how big it wants to be 1692 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1693 1694 // Implementation of weights from WindowManager.LayoutParams 1695 // We just grow the dimensions as needed and re-measure if 1696 // needs be 1697 int width = host.getMeasuredWidth(); 1698 int height = host.getMeasuredHeight(); 1699 boolean measureAgain = false; 1700 1701 if (lp.horizontalWeight > 0.0f) { 1702 width += (int) ((mWidth - width) * lp.horizontalWeight); 1703 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1704 MeasureSpec.EXACTLY); 1705 measureAgain = true; 1706 } 1707 if (lp.verticalWeight > 0.0f) { 1708 height += (int) ((mHeight - height) * lp.verticalWeight); 1709 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1710 MeasureSpec.EXACTLY); 1711 measureAgain = true; 1712 } 1713 1714 if (measureAgain) { 1715 if (DEBUG_LAYOUT) Log.v(TAG, 1716 "And hey let's measure once more: width=" + width 1717 + " height=" + height); 1718 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1719 } 1720 1721 layoutRequested = true; 1722 } 1723 } 1724 } else { 1725 // Not the first pass and no window/insets/visibility change but the window 1726 // may have moved and we need check that and if so to update the left and right 1727 // in the attach info. We translate only the window frame since on window move 1728 // the window manager tells us only for the new frame but the insets are the 1729 // same and we do not want to translate them more than once. 1730 1731 // TODO: Well, we are checking whether the frame has changed similarly 1732 // to how this is done for the insets. This is however incorrect since 1733 // the insets and the frame are translated. For example, the old frame 1734 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1735 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1736 // true since we are comparing a not translated value to a translated one. 1737 // This scenario is rare but we may want to fix that. 1738 1739 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1740 || attachInfo.mWindowTop != frame.top); 1741 if (windowMoved) { 1742 if (mTranslator != null) { 1743 mTranslator.translateRectInScreenToAppWinFrame(frame); 1744 } 1745 attachInfo.mWindowLeft = frame.left; 1746 attachInfo.mWindowTop = frame.top; 1747 } 1748 } 1749 1750 final boolean didLayout = layoutRequested && !mStopped; 1751 boolean triggerGlobalLayoutListener = didLayout 1752 || attachInfo.mRecomputeGlobalAttributes; 1753 if (didLayout) { 1754 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1755 1756 // By this point all views have been sized and positionned 1757 // We can compute the transparent area 1758 1759 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1760 // start out transparent 1761 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1762 host.getLocationInWindow(mTmpLocation); 1763 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1764 mTmpLocation[0] + host.mRight - host.mLeft, 1765 mTmpLocation[1] + host.mBottom - host.mTop); 1766 1767 host.gatherTransparentRegion(mTransparentRegion); 1768 if (mTranslator != null) { 1769 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1770 } 1771 1772 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1773 mPreviousTransparentRegion.set(mTransparentRegion); 1774 // reconfigure window manager 1775 try { 1776 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1777 } catch (RemoteException e) { 1778 } 1779 } 1780 } 1781 1782 if (DBG) { 1783 System.out.println("======================================"); 1784 System.out.println("performTraversals -- after setFrame"); 1785 host.debug(); 1786 } 1787 } 1788 1789 if (triggerGlobalLayoutListener) { 1790 attachInfo.mRecomputeGlobalAttributes = false; 1791 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1792 1793 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1794 postSendWindowContentChangedCallback(mView); 1795 } 1796 } 1797 1798 if (computesInternalInsets) { 1799 // Clear the original insets. 1800 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1801 insets.reset(); 1802 1803 // Compute new insets in place. 1804 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1805 1806 // Tell the window manager. 1807 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1808 mLastGivenInsets.set(insets); 1809 1810 // Translate insets to screen coordinates if needed. 1811 final Rect contentInsets; 1812 final Rect visibleInsets; 1813 final Region touchableRegion; 1814 if (mTranslator != null) { 1815 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1816 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1817 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1818 } else { 1819 contentInsets = insets.contentInsets; 1820 visibleInsets = insets.visibleInsets; 1821 touchableRegion = insets.touchableRegion; 1822 } 1823 1824 try { 1825 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1826 contentInsets, visibleInsets, touchableRegion); 1827 } catch (RemoteException e) { 1828 } 1829 } 1830 } 1831 1832 boolean skipDraw = false; 1833 1834 if (mFirst) { 1835 // handle first focus request 1836 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1837 + mView.hasFocus()); 1838 if (mView != null) { 1839 if (!mView.hasFocus()) { 1840 mView.requestFocus(View.FOCUS_FORWARD); 1841 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1842 + mView.findFocus()); 1843 } else { 1844 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1845 + mView.findFocus()); 1846 } 1847 } 1848 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1849 // The first time we relayout the window, if the system is 1850 // doing window animations, we want to hold of on any future 1851 // draws until the animation is done. 1852 mWindowsAnimating = true; 1853 } 1854 } else if (mWindowsAnimating) { 1855 skipDraw = true; 1856 } 1857 1858 mFirst = false; 1859 mWillDrawSoon = false; 1860 mNewSurfaceNeeded = false; 1861 mViewVisibility = viewVisibility; 1862 1863 if (mAttachInfo.mHasWindowFocus) { 1864 final boolean imTarget = WindowManager.LayoutParams 1865 .mayUseInputMethod(mWindowAttributes.flags); 1866 if (imTarget != mLastWasImTarget) { 1867 mLastWasImTarget = imTarget; 1868 InputMethodManager imm = InputMethodManager.peekInstance(); 1869 if (imm != null && imTarget) { 1870 imm.startGettingWindowFocus(mView); 1871 imm.onWindowFocus(mView, mView.findFocus(), 1872 mWindowAttributes.softInputMode, 1873 !mHasHadWindowFocus, mWindowAttributes.flags); 1874 } 1875 } 1876 } 1877 1878 // Remember if we must report the next draw. 1879 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1880 mReportNextDraw = true; 1881 } 1882 1883 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1884 viewVisibility != View.VISIBLE; 1885 1886 if (!cancelDraw && !newSurface) { 1887 if (!skipDraw || mReportNextDraw) { 1888 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1889 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1890 mPendingTransitions.get(i).startChangingAnimations(); 1891 } 1892 mPendingTransitions.clear(); 1893 } 1894 1895 performDraw(); 1896 } 1897 } else { 1898 if (viewVisibility == View.VISIBLE) { 1899 // Try again 1900 scheduleTraversals(); 1901 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1902 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1903 mPendingTransitions.get(i).endChangingAnimations(); 1904 } 1905 mPendingTransitions.clear(); 1906 } 1907 } 1908 1909 mIsInTraversal = false; 1910 } 1911 1912 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1913 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1914 try { 1915 if (!mWindowSession.outOfMemory(mWindow) && 1916 Process.myUid() != Process.SYSTEM_UID) { 1917 Slog.w(TAG, "No processes killed for memory; killing self"); 1918 Process.killProcess(Process.myPid()); 1919 } 1920 } catch (RemoteException ex) { 1921 } 1922 mLayoutRequested = true; // ask wm for a new surface next time. 1923 } 1924 1925 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1926 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1927 try { 1928 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1929 } finally { 1930 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1931 } 1932 } 1933 1934 /** 1935 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1936 * is currently undergoing a layout pass. 1937 * 1938 * @return whether the view hierarchy is currently undergoing a layout pass 1939 */ 1940 boolean isInLayout() { 1941 return mInLayout; 1942 } 1943 1944 /** 1945 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1946 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1947 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1948 * all children in that container hierarchy are measured and laid out at the end of the layout 1949 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1950 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1951 * we check all of those views to see if any still have pending layout requests, which 1952 * indicates that they were not correctly handled by their container hierarchy. If that is 1953 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1954 * to blank containers, and force a second request/measure/layout pass in this frame. If 1955 * more requestLayout() calls are received during that second layout pass, we post those 1956 * requests to the next frame to avoid possible infinite loops. 1957 * 1958 * <p>The return value from this method indicates whether the request should proceed 1959 * (if it is a request during the first layout pass) or should be skipped and posted to the 1960 * next frame (if it is a request during the second layout pass).</p> 1961 * 1962 * @param view the view that requested the layout. 1963 * 1964 * @return true if request should proceed, false otherwise. 1965 */ 1966 boolean requestLayoutDuringLayout(final View view) { 1967 if (view.mParent == null || view.mAttachInfo == null) { 1968 // Would not normally trigger another layout, so just let it pass through as usual 1969 return true; 1970 } 1971 if (!mLayoutRequesters.contains(view)) { 1972 mLayoutRequesters.add(view); 1973 } 1974 if (!mHandlingLayoutInLayoutRequest) { 1975 // Let the request proceed normally; it will be processed in a second layout pass 1976 // if necessary 1977 return true; 1978 } else { 1979 // Don't let the request proceed during the second layout pass. 1980 // It will post to the next frame instead. 1981 return false; 1982 } 1983 } 1984 1985 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1986 int desiredWindowHeight) { 1987 mLayoutRequested = false; 1988 mScrollMayChange = true; 1989 mInLayout = true; 1990 1991 final View host = mView; 1992 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1993 Log.v(TAG, "Laying out " + host + " to (" + 1994 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1995 } 1996 1997 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1998 try { 1999 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2000 2001 mInLayout = false; 2002 int numViewsRequestingLayout = mLayoutRequesters.size(); 2003 if (numViewsRequestingLayout > 0) { 2004 // requestLayout() was called during layout. 2005 // If no layout-request flags are set on the requesting views, there is no problem. 2006 // If some requests are still pending, then we need to clear those flags and do 2007 // a full request/measure/layout pass to handle this situation. 2008 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2009 false); 2010 if (validLayoutRequesters != null) { 2011 // Set this flag to indicate that any further requests are happening during 2012 // the second pass, which may result in posting those requests to the next 2013 // frame instead 2014 mHandlingLayoutInLayoutRequest = true; 2015 2016 // Process fresh layout requests, then measure and layout 2017 int numValidRequests = validLayoutRequesters.size(); 2018 for (int i = 0; i < numValidRequests; ++i) { 2019 final View view = validLayoutRequesters.get(i); 2020 Log.w("View", "requestLayout() improperly called by " + view + 2021 " during layout: running second layout pass"); 2022 view.requestLayout(); 2023 } 2024 measureHierarchy(host, lp, mView.getContext().getResources(), 2025 desiredWindowWidth, desiredWindowHeight); 2026 mInLayout = true; 2027 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2028 2029 mHandlingLayoutInLayoutRequest = false; 2030 2031 // Check the valid requests again, this time without checking/clearing the 2032 // layout flags, since requests happening during the second pass get noop'd 2033 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2034 if (validLayoutRequesters != null) { 2035 final ArrayList<View> finalRequesters = validLayoutRequesters; 2036 // Post second-pass requests to the next frame 2037 getRunQueue().post(new Runnable() { 2038 @Override 2039 public void run() { 2040 int numValidRequests = finalRequesters.size(); 2041 for (int i = 0; i < numValidRequests; ++i) { 2042 final View view = finalRequesters.get(i); 2043 Log.w("View", "requestLayout() improperly called by " + view + 2044 " during second layout pass: posting in next frame"); 2045 view.requestLayout(); 2046 } 2047 } 2048 }); 2049 } 2050 } 2051 2052 } 2053 } finally { 2054 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2055 } 2056 mInLayout = false; 2057 } 2058 2059 /** 2060 * This method is called during layout when there have been calls to requestLayout() during 2061 * layout. It walks through the list of views that requested layout to determine which ones 2062 * still need it, based on visibility in the hierarchy and whether they have already been 2063 * handled (as is usually the case with ListView children). 2064 * 2065 * @param layoutRequesters The list of views that requested layout during layout 2066 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2067 * If so, the FORCE_LAYOUT flag was not set on requesters. 2068 * @return A list of the actual views that still need to be laid out. 2069 */ 2070 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2071 boolean secondLayoutRequests) { 2072 2073 int numViewsRequestingLayout = layoutRequesters.size(); 2074 ArrayList<View> validLayoutRequesters = null; 2075 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2076 View view = layoutRequesters.get(i); 2077 if (view != null && view.mAttachInfo != null && view.mParent != null && 2078 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2079 View.PFLAG_FORCE_LAYOUT)) { 2080 boolean gone = false; 2081 View parent = view; 2082 // Only trigger new requests for views in a non-GONE hierarchy 2083 while (parent != null) { 2084 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2085 gone = true; 2086 break; 2087 } 2088 if (parent.mParent instanceof View) { 2089 parent = (View) parent.mParent; 2090 } else { 2091 parent = null; 2092 } 2093 } 2094 if (!gone) { 2095 if (validLayoutRequesters == null) { 2096 validLayoutRequesters = new ArrayList<View>(); 2097 } 2098 validLayoutRequesters.add(view); 2099 } 2100 } 2101 } 2102 if (!secondLayoutRequests) { 2103 // If we're checking the layout flags, then we need to clean them up also 2104 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2105 View view = layoutRequesters.get(i); 2106 while (view != null && 2107 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2108 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2109 if (view.mParent instanceof View) { 2110 view = (View) view.mParent; 2111 } else { 2112 view = null; 2113 } 2114 } 2115 } 2116 } 2117 layoutRequesters.clear(); 2118 return validLayoutRequesters; 2119 } 2120 2121 public void requestTransparentRegion(View child) { 2122 // the test below should not fail unless someone is messing with us 2123 checkThread(); 2124 if (mView == child) { 2125 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2126 // Need to make sure we re-evaluate the window attributes next 2127 // time around, to ensure the window has the correct format. 2128 mWindowAttributesChanged = true; 2129 mWindowAttributesChangesFlag = 0; 2130 requestLayout(); 2131 } 2132 } 2133 2134 /** 2135 * Figures out the measure spec for the root view in a window based on it's 2136 * layout params. 2137 * 2138 * @param windowSize 2139 * The available width or height of the window 2140 * 2141 * @param rootDimension 2142 * The layout params for one dimension (width or height) of the 2143 * window. 2144 * 2145 * @return The measure spec to use to measure the root view. 2146 */ 2147 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2148 int measureSpec; 2149 switch (rootDimension) { 2150 2151 case ViewGroup.LayoutParams.MATCH_PARENT: 2152 // Window can't resize. Force root view to be windowSize. 2153 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2154 break; 2155 case ViewGroup.LayoutParams.WRAP_CONTENT: 2156 // Window can resize. Set max size for root view. 2157 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2158 break; 2159 default: 2160 // Window wants to be an exact size. Force root view to be that size. 2161 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2162 break; 2163 } 2164 return measureSpec; 2165 } 2166 2167 int mHardwareYOffset; 2168 int mResizeAlpha; 2169 final Paint mResizePaint = new Paint(); 2170 2171 public void onHardwarePreDraw(HardwareCanvas canvas) { 2172 canvas.translate(0, -mHardwareYOffset); 2173 } 2174 2175 public void onHardwarePostDraw(HardwareCanvas canvas) { 2176 if (mResizeBuffer != null) { 2177 mResizePaint.setAlpha(mResizeAlpha); 2178 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2179 } 2180 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2181 } 2182 2183 /** 2184 * @hide 2185 */ 2186 void outputDisplayList(View view) { 2187 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2188 DisplayList displayList = view.getDisplayList(); 2189 if (displayList != null) { 2190 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2191 } 2192 } 2193 } 2194 2195 /** 2196 * @see #PROPERTY_PROFILE_RENDERING 2197 */ 2198 private void profileRendering(boolean enabled) { 2199 if (mProfileRendering) { 2200 mRenderProfilingEnabled = enabled; 2201 2202 if (mRenderProfiler != null) { 2203 mChoreographer.removeFrameCallback(mRenderProfiler); 2204 } 2205 if (mRenderProfilingEnabled) { 2206 if (mRenderProfiler == null) { 2207 mRenderProfiler = new Choreographer.FrameCallback() { 2208 @Override 2209 public void doFrame(long frameTimeNanos) { 2210 mDirty.set(0, 0, mWidth, mHeight); 2211 scheduleTraversals(); 2212 if (mRenderProfilingEnabled) { 2213 mChoreographer.postFrameCallback(mRenderProfiler); 2214 } 2215 } 2216 }; 2217 } 2218 mChoreographer.postFrameCallback(mRenderProfiler); 2219 } else { 2220 mRenderProfiler = null; 2221 } 2222 } 2223 } 2224 2225 /** 2226 * Called from draw() when DEBUG_FPS is enabled 2227 */ 2228 private void trackFPS() { 2229 // Tracks frames per second drawn. First value in a series of draws may be bogus 2230 // because it down not account for the intervening idle time 2231 long nowTime = System.currentTimeMillis(); 2232 if (mFpsStartTime < 0) { 2233 mFpsStartTime = mFpsPrevTime = nowTime; 2234 mFpsNumFrames = 0; 2235 } else { 2236 ++mFpsNumFrames; 2237 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2238 long frameTime = nowTime - mFpsPrevTime; 2239 long totalTime = nowTime - mFpsStartTime; 2240 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2241 mFpsPrevTime = nowTime; 2242 if (totalTime > 1000) { 2243 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2244 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2245 mFpsStartTime = nowTime; 2246 mFpsNumFrames = 0; 2247 } 2248 } 2249 } 2250 2251 private void performDraw() { 2252 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2253 return; 2254 } 2255 2256 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2257 mFullRedrawNeeded = false; 2258 2259 mIsDrawing = true; 2260 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2261 try { 2262 draw(fullRedrawNeeded); 2263 } finally { 2264 mIsDrawing = false; 2265 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2266 } 2267 2268 if (mReportNextDraw) { 2269 mReportNextDraw = false; 2270 2271 if (LOCAL_LOGV) { 2272 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2273 } 2274 if (mSurfaceHolder != null && mSurface.isValid()) { 2275 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2276 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2277 if (callbacks != null) { 2278 for (SurfaceHolder.Callback c : callbacks) { 2279 if (c instanceof SurfaceHolder.Callback2) { 2280 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2281 mSurfaceHolder); 2282 } 2283 } 2284 } 2285 } 2286 try { 2287 mWindowSession.finishDrawing(mWindow); 2288 } catch (RemoteException e) { 2289 } 2290 } 2291 } 2292 2293 private void draw(boolean fullRedrawNeeded) { 2294 Surface surface = mSurface; 2295 if (!surface.isValid()) { 2296 return; 2297 } 2298 2299 if (DEBUG_FPS) { 2300 trackFPS(); 2301 } 2302 2303 if (!sFirstDrawComplete) { 2304 synchronized (sFirstDrawHandlers) { 2305 sFirstDrawComplete = true; 2306 final int count = sFirstDrawHandlers.size(); 2307 for (int i = 0; i< count; i++) { 2308 mHandler.post(sFirstDrawHandlers.get(i)); 2309 } 2310 } 2311 } 2312 2313 scrollToRectOrFocus(null, false); 2314 2315 final AttachInfo attachInfo = mAttachInfo; 2316 if (attachInfo.mViewScrollChanged) { 2317 attachInfo.mViewScrollChanged = false; 2318 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2319 } 2320 2321 int yoff; 2322 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2323 if (animating) { 2324 yoff = mScroller.getCurrY(); 2325 } else { 2326 yoff = mScrollY; 2327 } 2328 if (mCurScrollY != yoff) { 2329 mCurScrollY = yoff; 2330 fullRedrawNeeded = true; 2331 } 2332 2333 final float appScale = attachInfo.mApplicationScale; 2334 final boolean scalingRequired = attachInfo.mScalingRequired; 2335 2336 int resizeAlpha = 0; 2337 if (mResizeBuffer != null) { 2338 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2339 if (deltaTime < mResizeBufferDuration) { 2340 float amt = deltaTime/(float) mResizeBufferDuration; 2341 amt = mResizeInterpolator.getInterpolation(amt); 2342 animating = true; 2343 resizeAlpha = 255 - (int)(amt*255); 2344 } else { 2345 disposeResizeBuffer(); 2346 } 2347 } 2348 2349 final Rect dirty = mDirty; 2350 if (mSurfaceHolder != null) { 2351 // The app owns the surface, we won't draw. 2352 dirty.setEmpty(); 2353 if (animating) { 2354 if (mScroller != null) { 2355 mScroller.abortAnimation(); 2356 } 2357 disposeResizeBuffer(); 2358 } 2359 return; 2360 } 2361 2362 if (fullRedrawNeeded) { 2363 attachInfo.mIgnoreDirtyState = true; 2364 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2365 } 2366 2367 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2368 Log.v(TAG, "Draw " + mView + "/" 2369 + mWindowAttributes.getTitle() 2370 + ": dirty={" + dirty.left + "," + dirty.top 2371 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2372 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2373 appScale + ", width=" + mWidth + ", height=" + mHeight); 2374 } 2375 2376 invalidateDisplayLists(); 2377 2378 attachInfo.mTreeObserver.dispatchOnDraw(); 2379 2380 if (!dirty.isEmpty() || mIsAnimating) { 2381 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2382 // Draw with hardware renderer. 2383 mIsAnimating = false; 2384 mHardwareYOffset = yoff; 2385 mResizeAlpha = resizeAlpha; 2386 2387 mCurrentDirty.set(dirty); 2388 dirty.setEmpty(); 2389 2390 attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2391 animating ? null : mCurrentDirty); 2392 } else { 2393 // If we get here with a disabled & requested hardware renderer, something went 2394 // wrong (an invalidate posted right before we destroyed the hardware surface 2395 // for instance) so we should just bail out. Locking the surface with software 2396 // rendering at this point would lock it forever and prevent hardware renderer 2397 // from doing its job when it comes back. 2398 // Before we request a new frame we must however attempt to reinitiliaze the 2399 // hardware renderer if it's in requested state. This would happen after an 2400 // eglTerminate() for instance. 2401 if (attachInfo.mHardwareRenderer != null && 2402 !attachInfo.mHardwareRenderer.isEnabled() && 2403 attachInfo.mHardwareRenderer.isRequested()) { 2404 2405 try { 2406 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2407 mHolder.getSurface()); 2408 } catch (Surface.OutOfResourcesException e) { 2409 handleOutOfResourcesException(e); 2410 return; 2411 } 2412 2413 mFullRedrawNeeded = true; 2414 scheduleTraversals(); 2415 return; 2416 } 2417 2418 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2419 return; 2420 } 2421 } 2422 } 2423 2424 if (animating) { 2425 mFullRedrawNeeded = true; 2426 scheduleTraversals(); 2427 } 2428 } 2429 2430 /** 2431 * @return true if drawing was succesfull, false if an error occurred 2432 */ 2433 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2434 boolean scalingRequired, Rect dirty) { 2435 2436 // Draw with software renderer. 2437 Canvas canvas; 2438 try { 2439 int left = dirty.left; 2440 int top = dirty.top; 2441 int right = dirty.right; 2442 int bottom = dirty.bottom; 2443 2444 canvas = mSurface.lockCanvas(dirty); 2445 2446 // The dirty rectangle can be modified by Surface.lockCanvas() 2447 //noinspection ConstantConditions 2448 if (left != dirty.left || top != dirty.top || right != dirty.right || 2449 bottom != dirty.bottom) { 2450 attachInfo.mIgnoreDirtyState = true; 2451 } 2452 2453 // TODO: Do this in native 2454 canvas.setDensity(mDensity); 2455 } catch (Surface.OutOfResourcesException e) { 2456 handleOutOfResourcesException(e); 2457 return false; 2458 } catch (IllegalArgumentException e) { 2459 Log.e(TAG, "Could not lock surface", e); 2460 // Don't assume this is due to out of memory, it could be 2461 // something else, and if it is something else then we could 2462 // kill stuff (or ourself) for no reason. 2463 mLayoutRequested = true; // ask wm for a new surface next time. 2464 return false; 2465 } 2466 2467 try { 2468 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2469 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2470 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2471 //canvas.drawARGB(255, 255, 0, 0); 2472 } 2473 2474 // If this bitmap's format includes an alpha channel, we 2475 // need to clear it before drawing so that the child will 2476 // properly re-composite its drawing on a transparent 2477 // background. This automatically respects the clip/dirty region 2478 // or 2479 // If we are applying an offset, we need to clear the area 2480 // where the offset doesn't appear to avoid having garbage 2481 // left in the blank areas. 2482 if (!canvas.isOpaque() || yoff != 0) { 2483 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2484 } 2485 2486 dirty.setEmpty(); 2487 mIsAnimating = false; 2488 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2489 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2490 2491 if (DEBUG_DRAW) { 2492 Context cxt = mView.getContext(); 2493 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2494 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2495 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2496 } 2497 try { 2498 canvas.translate(0, -yoff); 2499 if (mTranslator != null) { 2500 mTranslator.translateCanvas(canvas); 2501 } 2502 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2503 attachInfo.mSetIgnoreDirtyState = false; 2504 2505 mView.draw(canvas); 2506 2507 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2508 } finally { 2509 if (!attachInfo.mSetIgnoreDirtyState) { 2510 // Only clear the flag if it was not set during the mView.draw() call 2511 attachInfo.mIgnoreDirtyState = false; 2512 } 2513 } 2514 } finally { 2515 try { 2516 surface.unlockCanvasAndPost(canvas); 2517 } catch (IllegalArgumentException e) { 2518 Log.e(TAG, "Could not unlock surface", e); 2519 mLayoutRequested = true; // ask wm for a new surface next time. 2520 //noinspection ReturnInsideFinallyBlock 2521 return false; 2522 } 2523 2524 if (LOCAL_LOGV) { 2525 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2526 } 2527 } 2528 return true; 2529 } 2530 2531 /** 2532 * We want to draw a highlight around the current accessibility focused. 2533 * Since adding a style for all possible view is not a viable option we 2534 * have this specialized drawing method. 2535 * 2536 * Note: We are doing this here to be able to draw the highlight for 2537 * virtual views in addition to real ones. 2538 * 2539 * @param canvas The canvas on which to draw. 2540 */ 2541 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2542 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2543 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2544 return; 2545 } 2546 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2547 return; 2548 } 2549 Drawable drawable = getAccessibilityFocusedDrawable(); 2550 if (drawable == null) { 2551 return; 2552 } 2553 AccessibilityNodeProvider provider = 2554 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2555 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2556 if (provider == null) { 2557 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2558 } else { 2559 if (mAccessibilityFocusedVirtualView == null) { 2560 return; 2561 } 2562 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2563 } 2564 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2565 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2566 drawable.setBounds(bounds); 2567 drawable.draw(canvas); 2568 } 2569 2570 private Drawable getAccessibilityFocusedDrawable() { 2571 if (mAttachInfo != null) { 2572 // Lazily load the accessibility focus drawable. 2573 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2574 TypedValue value = new TypedValue(); 2575 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2576 R.attr.accessibilityFocusedDrawable, value, true); 2577 if (resolved) { 2578 mAttachInfo.mAccessibilityFocusDrawable = 2579 mView.mContext.getResources().getDrawable(value.resourceId); 2580 } 2581 } 2582 return mAttachInfo.mAccessibilityFocusDrawable; 2583 } 2584 return null; 2585 } 2586 2587 void invalidateDisplayLists() { 2588 final ArrayList<DisplayList> displayLists = mDisplayLists; 2589 final int count = displayLists.size(); 2590 2591 for (int i = 0; i < count; i++) { 2592 final DisplayList displayList = displayLists.get(i); 2593 if (displayList.isDirty()) { 2594 displayList.clear(); 2595 } 2596 } 2597 2598 displayLists.clear(); 2599 } 2600 2601 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2602 final View.AttachInfo attachInfo = mAttachInfo; 2603 final Rect ci = attachInfo.mContentInsets; 2604 final Rect vi = attachInfo.mVisibleInsets; 2605 int scrollY = 0; 2606 boolean handled = false; 2607 2608 if (vi.left > ci.left || vi.top > ci.top 2609 || vi.right > ci.right || vi.bottom > ci.bottom) { 2610 // We'll assume that we aren't going to change the scroll 2611 // offset, since we want to avoid that unless it is actually 2612 // going to make the focus visible... otherwise we scroll 2613 // all over the place. 2614 scrollY = mScrollY; 2615 // We can be called for two different situations: during a draw, 2616 // to update the scroll position if the focus has changed (in which 2617 // case 'rectangle' is null), or in response to a 2618 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2619 // is non-null and we just want to scroll to whatever that 2620 // rectangle is). 2621 View focus = mView.findFocus(); 2622 if (focus == null) { 2623 return false; 2624 } 2625 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2626 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2627 // If the focus has changed, then ignore any requests to scroll 2628 // to a rectangle; first we want to make sure the entire focus 2629 // view is visible. 2630 rectangle = null; 2631 } 2632 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2633 + " rectangle=" + rectangle + " ci=" + ci 2634 + " vi=" + vi); 2635 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2636 // Optimization: if the focus hasn't changed since last 2637 // time, and no layout has happened, then just leave things 2638 // as they are. 2639 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2640 + mScrollY + " vi=" + vi.toShortString()); 2641 } else if (focus != null) { 2642 // We need to determine if the currently focused view is 2643 // within the visible part of the window and, if not, apply 2644 // a pan so it can be seen. 2645 mLastScrolledFocus = new WeakReference<View>(focus); 2646 mScrollMayChange = false; 2647 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2648 // Try to find the rectangle from the focus view. 2649 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2650 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2651 + mView.getWidth() + " h=" + mView.getHeight() 2652 + " ci=" + ci.toShortString() 2653 + " vi=" + vi.toShortString()); 2654 if (rectangle == null) { 2655 focus.getFocusedRect(mTempRect); 2656 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2657 + ": focusRect=" + mTempRect.toShortString()); 2658 if (mView instanceof ViewGroup) { 2659 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2660 focus, mTempRect); 2661 } 2662 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2663 "Focus in window: focusRect=" 2664 + mTempRect.toShortString() 2665 + " visRect=" + mVisRect.toShortString()); 2666 } else { 2667 mTempRect.set(rectangle); 2668 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2669 "Request scroll to rect: " 2670 + mTempRect.toShortString() 2671 + " visRect=" + mVisRect.toShortString()); 2672 } 2673 if (mTempRect.intersect(mVisRect)) { 2674 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2675 "Focus window visible rect: " 2676 + mTempRect.toShortString()); 2677 if (mTempRect.height() > 2678 (mView.getHeight()-vi.top-vi.bottom)) { 2679 // If the focus simply is not going to fit, then 2680 // best is probably just to leave things as-is. 2681 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2682 "Too tall; leaving scrollY=" + scrollY); 2683 } else if ((mTempRect.top-scrollY) < vi.top) { 2684 scrollY -= vi.top - (mTempRect.top-scrollY); 2685 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2686 "Top covered; scrollY=" + scrollY); 2687 } else if ((mTempRect.bottom-scrollY) 2688 > (mView.getHeight()-vi.bottom)) { 2689 scrollY += (mTempRect.bottom-scrollY) 2690 - (mView.getHeight()-vi.bottom); 2691 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2692 "Bottom covered; scrollY=" + scrollY); 2693 } 2694 handled = true; 2695 } 2696 } 2697 } 2698 } 2699 2700 if (scrollY != mScrollY) { 2701 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2702 + mScrollY + " , new=" + scrollY); 2703 if (!immediate && mResizeBuffer == null) { 2704 if (mScroller == null) { 2705 mScroller = new Scroller(mView.getContext()); 2706 } 2707 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2708 } else if (mScroller != null) { 2709 mScroller.abortAnimation(); 2710 } 2711 mScrollY = scrollY; 2712 } 2713 2714 return handled; 2715 } 2716 2717 /** 2718 * @hide 2719 */ 2720 public View getAccessibilityFocusedHost() { 2721 return mAccessibilityFocusedHost; 2722 } 2723 2724 /** 2725 * @hide 2726 */ 2727 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2728 return mAccessibilityFocusedVirtualView; 2729 } 2730 2731 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2732 // If we have a virtual view with accessibility focus we need 2733 // to clear the focus and invalidate the virtual view bounds. 2734 if (mAccessibilityFocusedVirtualView != null) { 2735 2736 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2737 View focusHost = mAccessibilityFocusedHost; 2738 focusHost.clearAccessibilityFocusNoCallbacks(); 2739 2740 // Wipe the state of the current accessibility focus since 2741 // the call into the provider to clear accessibility focus 2742 // will fire an accessibility event which will end up calling 2743 // this method and we want to have clean state when this 2744 // invocation happens. 2745 mAccessibilityFocusedHost = null; 2746 mAccessibilityFocusedVirtualView = null; 2747 2748 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2749 if (provider != null) { 2750 // Invalidate the area of the cleared accessibility focus. 2751 focusNode.getBoundsInParent(mTempRect); 2752 focusHost.invalidate(mTempRect); 2753 // Clear accessibility focus in the virtual node. 2754 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2755 focusNode.getSourceNodeId()); 2756 provider.performAction(virtualNodeId, 2757 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2758 } 2759 focusNode.recycle(); 2760 } 2761 if (mAccessibilityFocusedHost != null) { 2762 // Clear accessibility focus in the view. 2763 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2764 } 2765 2766 // Set the new focus host and node. 2767 mAccessibilityFocusedHost = view; 2768 mAccessibilityFocusedVirtualView = node; 2769 } 2770 2771 public void requestChildFocus(View child, View focused) { 2772 if (DEBUG_INPUT_RESIZE) { 2773 Log.v(TAG, "Request child focus: focus now " + focused); 2774 } 2775 checkThread(); 2776 scheduleTraversals(); 2777 } 2778 2779 public void clearChildFocus(View child) { 2780 if (DEBUG_INPUT_RESIZE) { 2781 Log.v(TAG, "Clearing child focus"); 2782 } 2783 checkThread(); 2784 scheduleTraversals(); 2785 } 2786 2787 @Override 2788 public ViewParent getParentForAccessibility() { 2789 return null; 2790 } 2791 2792 public void focusableViewAvailable(View v) { 2793 checkThread(); 2794 if (mView != null) { 2795 if (!mView.hasFocus()) { 2796 v.requestFocus(); 2797 } else { 2798 // the one case where will transfer focus away from the current one 2799 // is if the current view is a view group that prefers to give focus 2800 // to its children first AND the view is a descendant of it. 2801 View focused = mView.findFocus(); 2802 if (focused instanceof ViewGroup) { 2803 ViewGroup group = (ViewGroup) focused; 2804 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2805 && isViewDescendantOf(v, focused)) { 2806 v.requestFocus(); 2807 } 2808 } 2809 } 2810 } 2811 } 2812 2813 public void recomputeViewAttributes(View child) { 2814 checkThread(); 2815 if (mView == child) { 2816 mAttachInfo.mRecomputeGlobalAttributes = true; 2817 if (!mWillDrawSoon) { 2818 scheduleTraversals(); 2819 } 2820 } 2821 } 2822 2823 void dispatchDetachedFromWindow() { 2824 if (mView != null && mView.mAttachInfo != null) { 2825 if (mAttachInfo.mHardwareRenderer != null && 2826 mAttachInfo.mHardwareRenderer.isEnabled()) { 2827 mAttachInfo.mHardwareRenderer.validate(); 2828 } 2829 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2830 mView.dispatchDetachedFromWindow(); 2831 } 2832 2833 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2834 mAccessibilityManager.removeAccessibilityStateChangeListener( 2835 mAccessibilityInteractionConnectionManager); 2836 removeSendWindowContentChangedCallback(); 2837 2838 destroyHardwareRenderer(); 2839 2840 setAccessibilityFocus(null, null); 2841 2842 mView = null; 2843 mAttachInfo.mRootView = null; 2844 mAttachInfo.mSurface = null; 2845 2846 mSurface.release(); 2847 2848 if (mInputQueueCallback != null && mInputQueue != null) { 2849 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2850 mInputQueueCallback = null; 2851 mInputQueue = null; 2852 } else if (mInputEventReceiver != null) { 2853 mInputEventReceiver.dispose(); 2854 mInputEventReceiver = null; 2855 } 2856 try { 2857 mWindowSession.remove(mWindow); 2858 } catch (RemoteException e) { 2859 } 2860 2861 // Dispose the input channel after removing the window so the Window Manager 2862 // doesn't interpret the input channel being closed as an abnormal termination. 2863 if (mInputChannel != null) { 2864 mInputChannel.dispose(); 2865 mInputChannel = null; 2866 } 2867 2868 unscheduleTraversals(); 2869 } 2870 2871 void updateConfiguration(Configuration config, boolean force) { 2872 if (DEBUG_CONFIGURATION) Log.v(TAG, 2873 "Applying new config to window " 2874 + mWindowAttributes.getTitle() 2875 + ": " + config); 2876 2877 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2878 if (ci != null) { 2879 config = new Configuration(config); 2880 ci.applyToConfiguration(mNoncompatDensity, config); 2881 } 2882 2883 synchronized (sConfigCallbacks) { 2884 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2885 sConfigCallbacks.get(i).onConfigurationChanged(config); 2886 } 2887 } 2888 if (mView != null) { 2889 // At this point the resources have been updated to 2890 // have the most recent config, whatever that is. Use 2891 // the one in them which may be newer. 2892 config = mView.getResources().getConfiguration(); 2893 if (force || mLastConfiguration.diff(config) != 0) { 2894 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2895 final int currentLayoutDirection = config.getLayoutDirection(); 2896 mLastConfiguration.setTo(config); 2897 if (lastLayoutDirection != currentLayoutDirection && 2898 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2899 mView.setLayoutDirection(currentLayoutDirection); 2900 } 2901 mView.dispatchConfigurationChanged(config); 2902 } 2903 } 2904 } 2905 2906 /** 2907 * Return true if child is an ancestor of parent, (or equal to the parent). 2908 */ 2909 public static boolean isViewDescendantOf(View child, View parent) { 2910 if (child == parent) { 2911 return true; 2912 } 2913 2914 final ViewParent theParent = child.getParent(); 2915 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2916 } 2917 2918 private static void forceLayout(View view) { 2919 view.forceLayout(); 2920 if (view instanceof ViewGroup) { 2921 ViewGroup group = (ViewGroup) view; 2922 final int count = group.getChildCount(); 2923 for (int i = 0; i < count; i++) { 2924 forceLayout(group.getChildAt(i)); 2925 } 2926 } 2927 } 2928 2929 private final static int MSG_INVALIDATE = 1; 2930 private final static int MSG_INVALIDATE_RECT = 2; 2931 private final static int MSG_DIE = 3; 2932 private final static int MSG_RESIZED = 4; 2933 private final static int MSG_RESIZED_REPORT = 5; 2934 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2935 private final static int MSG_DISPATCH_KEY = 7; 2936 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2937 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2938 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2939 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2940 private final static int MSG_CHECK_FOCUS = 13; 2941 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2942 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2943 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2944 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2945 private final static int MSG_UPDATE_CONFIGURATION = 18; 2946 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2947 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2948 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2949 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2950 private final static int MSG_INVALIDATE_WORLD = 23; 2951 private final static int MSG_WINDOW_MOVED = 24; 2952 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 25; 2953 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 26; 2954 2955 final class ViewRootHandler extends Handler { 2956 @Override 2957 public String getMessageName(Message message) { 2958 switch (message.what) { 2959 case MSG_INVALIDATE: 2960 return "MSG_INVALIDATE"; 2961 case MSG_INVALIDATE_RECT: 2962 return "MSG_INVALIDATE_RECT"; 2963 case MSG_DIE: 2964 return "MSG_DIE"; 2965 case MSG_RESIZED: 2966 return "MSG_RESIZED"; 2967 case MSG_RESIZED_REPORT: 2968 return "MSG_RESIZED_REPORT"; 2969 case MSG_WINDOW_FOCUS_CHANGED: 2970 return "MSG_WINDOW_FOCUS_CHANGED"; 2971 case MSG_DISPATCH_KEY: 2972 return "MSG_DISPATCH_KEY"; 2973 case MSG_DISPATCH_APP_VISIBILITY: 2974 return "MSG_DISPATCH_APP_VISIBILITY"; 2975 case MSG_DISPATCH_GET_NEW_SURFACE: 2976 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2977 case MSG_DISPATCH_KEY_FROM_IME: 2978 return "MSG_DISPATCH_KEY_FROM_IME"; 2979 case MSG_FINISH_INPUT_CONNECTION: 2980 return "MSG_FINISH_INPUT_CONNECTION"; 2981 case MSG_CHECK_FOCUS: 2982 return "MSG_CHECK_FOCUS"; 2983 case MSG_CLOSE_SYSTEM_DIALOGS: 2984 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2985 case MSG_DISPATCH_DRAG_EVENT: 2986 return "MSG_DISPATCH_DRAG_EVENT"; 2987 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2988 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2989 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2990 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2991 case MSG_UPDATE_CONFIGURATION: 2992 return "MSG_UPDATE_CONFIGURATION"; 2993 case MSG_PROCESS_INPUT_EVENTS: 2994 return "MSG_PROCESS_INPUT_EVENTS"; 2995 case MSG_DISPATCH_SCREEN_STATE: 2996 return "MSG_DISPATCH_SCREEN_STATE"; 2997 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2998 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2999 case MSG_DISPATCH_DONE_ANIMATING: 3000 return "MSG_DISPATCH_DONE_ANIMATING"; 3001 case MSG_WINDOW_MOVED: 3002 return "MSG_WINDOW_MOVED"; 3003 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3004 return "MSG_ENQUEUE_X_AXIS_KEY_REPEAT"; 3005 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: 3006 return "MSG_ENQUEUE_Y_AXIS_KEY_REPEAT"; 3007 } 3008 return super.getMessageName(message); 3009 } 3010 3011 @Override 3012 public void handleMessage(Message msg) { 3013 switch (msg.what) { 3014 case MSG_INVALIDATE: 3015 ((View) msg.obj).invalidate(); 3016 break; 3017 case MSG_INVALIDATE_RECT: 3018 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3019 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3020 info.recycle(); 3021 break; 3022 case MSG_PROCESS_INPUT_EVENTS: 3023 mProcessInputEventsScheduled = false; 3024 doProcessInputEvents(); 3025 break; 3026 case MSG_DISPATCH_APP_VISIBILITY: 3027 handleAppVisibility(msg.arg1 != 0); 3028 break; 3029 case MSG_DISPATCH_GET_NEW_SURFACE: 3030 handleGetNewSurface(); 3031 break; 3032 case MSG_RESIZED: { 3033 // Recycled in the fall through... 3034 SomeArgs args = (SomeArgs) msg.obj; 3035 if (mWinFrame.equals(args.arg1) 3036 && mPendingOverscanInsets.equals(args.arg5) 3037 && mPendingContentInsets.equals(args.arg2) 3038 && mPendingVisibleInsets.equals(args.arg3) 3039 && args.arg4 == null) { 3040 break; 3041 } 3042 } // fall through... 3043 case MSG_RESIZED_REPORT: 3044 if (mAdded) { 3045 SomeArgs args = (SomeArgs) msg.obj; 3046 3047 Configuration config = (Configuration) args.arg4; 3048 if (config != null) { 3049 updateConfiguration(config, false); 3050 } 3051 3052 mWinFrame.set((Rect) args.arg1); 3053 mPendingOverscanInsets.set((Rect) args.arg5); 3054 mPendingContentInsets.set((Rect) args.arg2); 3055 mPendingVisibleInsets.set((Rect) args.arg3); 3056 3057 args.recycle(); 3058 3059 if (msg.what == MSG_RESIZED_REPORT) { 3060 mReportNextDraw = true; 3061 } 3062 3063 if (mView != null) { 3064 forceLayout(mView); 3065 } 3066 3067 requestLayout(); 3068 } 3069 break; 3070 case MSG_WINDOW_MOVED: 3071 if (mAdded) { 3072 final int w = mWinFrame.width(); 3073 final int h = mWinFrame.height(); 3074 final int l = msg.arg1; 3075 final int t = msg.arg2; 3076 mWinFrame.left = l; 3077 mWinFrame.right = l + w; 3078 mWinFrame.top = t; 3079 mWinFrame.bottom = t + h; 3080 3081 if (mView != null) { 3082 forceLayout(mView); 3083 } 3084 requestLayout(); 3085 } 3086 break; 3087 case MSG_WINDOW_FOCUS_CHANGED: { 3088 if (mAdded) { 3089 boolean hasWindowFocus = msg.arg1 != 0; 3090 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3091 3092 profileRendering(hasWindowFocus); 3093 3094 if (hasWindowFocus) { 3095 boolean inTouchMode = msg.arg2 != 0; 3096 ensureTouchModeLocally(inTouchMode); 3097 3098 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3099 mFullRedrawNeeded = true; 3100 try { 3101 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3102 mWidth, mHeight, mHolder.getSurface()); 3103 } catch (Surface.OutOfResourcesException e) { 3104 Log.e(TAG, "OutOfResourcesException locking surface", e); 3105 try { 3106 if (!mWindowSession.outOfMemory(mWindow)) { 3107 Slog.w(TAG, "No processes killed for memory; killing self"); 3108 Process.killProcess(Process.myPid()); 3109 } 3110 } catch (RemoteException ex) { 3111 } 3112 // Retry in a bit. 3113 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3114 return; 3115 } 3116 } 3117 } 3118 3119 mLastWasImTarget = WindowManager.LayoutParams 3120 .mayUseInputMethod(mWindowAttributes.flags); 3121 3122 InputMethodManager imm = InputMethodManager.peekInstance(); 3123 if (mView != null) { 3124 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3125 imm.startGettingWindowFocus(mView); 3126 } 3127 mAttachInfo.mKeyDispatchState.reset(); 3128 mView.dispatchWindowFocusChanged(hasWindowFocus); 3129 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3130 } 3131 3132 // Note: must be done after the focus change callbacks, 3133 // so all of the view state is set up correctly. 3134 if (hasWindowFocus) { 3135 if (imm != null && mLastWasImTarget) { 3136 imm.onWindowFocus(mView, mView.findFocus(), 3137 mWindowAttributes.softInputMode, 3138 !mHasHadWindowFocus, mWindowAttributes.flags); 3139 } 3140 // Clear the forward bit. We can just do this directly, since 3141 // the window manager doesn't care about it. 3142 mWindowAttributes.softInputMode &= 3143 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3144 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3145 .softInputMode &= 3146 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3147 mHasHadWindowFocus = true; 3148 } 3149 3150 setAccessibilityFocus(null, null); 3151 3152 if (mView != null && mAccessibilityManager.isEnabled()) { 3153 if (hasWindowFocus) { 3154 mView.sendAccessibilityEvent( 3155 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3156 } 3157 } 3158 } 3159 } break; 3160 case MSG_DIE: 3161 doDie(); 3162 break; 3163 case MSG_DISPATCH_KEY: { 3164 KeyEvent event = (KeyEvent)msg.obj; 3165 enqueueInputEvent(event, null, 0, true); 3166 } break; 3167 case MSG_DISPATCH_KEY_FROM_IME: { 3168 if (LOCAL_LOGV) Log.v( 3169 TAG, "Dispatching key " 3170 + msg.obj + " from IME to " + mView); 3171 KeyEvent event = (KeyEvent)msg.obj; 3172 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3173 // The IME is trying to say this event is from the 3174 // system! Bad bad bad! 3175 //noinspection UnusedAssignment 3176 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3177 } 3178 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3179 } break; 3180 case MSG_FINISH_INPUT_CONNECTION: { 3181 InputMethodManager imm = InputMethodManager.peekInstance(); 3182 if (imm != null) { 3183 imm.reportFinishInputConnection((InputConnection)msg.obj); 3184 } 3185 } break; 3186 case MSG_CHECK_FOCUS: { 3187 InputMethodManager imm = InputMethodManager.peekInstance(); 3188 if (imm != null) { 3189 imm.checkFocus(); 3190 } 3191 } break; 3192 case MSG_CLOSE_SYSTEM_DIALOGS: { 3193 if (mView != null) { 3194 mView.onCloseSystemDialogs((String)msg.obj); 3195 } 3196 } break; 3197 case MSG_DISPATCH_DRAG_EVENT: 3198 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3199 DragEvent event = (DragEvent)msg.obj; 3200 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3201 handleDragEvent(event); 3202 } break; 3203 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3204 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3205 } break; 3206 case MSG_UPDATE_CONFIGURATION: { 3207 Configuration config = (Configuration)msg.obj; 3208 if (config.isOtherSeqNewer(mLastConfiguration)) { 3209 config = mLastConfiguration; 3210 } 3211 updateConfiguration(config, false); 3212 } break; 3213 case MSG_DISPATCH_SCREEN_STATE: { 3214 if (mView != null) { 3215 handleScreenStateChange(msg.arg1 == 1); 3216 } 3217 } break; 3218 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3219 setAccessibilityFocus(null, null); 3220 } break; 3221 case MSG_DISPATCH_DONE_ANIMATING: { 3222 handleDispatchDoneAnimating(); 3223 } break; 3224 case MSG_INVALIDATE_WORLD: { 3225 if (mView != null) { 3226 invalidateWorld(mView); 3227 } 3228 } break; 3229 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3230 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 3231 KeyEvent oldEvent = (KeyEvent)msg.obj; 3232 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, SystemClock.uptimeMillis(), 3233 oldEvent.getRepeatCount() + 1); 3234 if (mAttachInfo.mHasWindowFocus) { 3235 enqueueInputEvent(e); 3236 Message m = obtainMessage(msg.what, e); 3237 m.setAsynchronous(true); 3238 sendMessageDelayed(m, mViewConfiguration.getKeyRepeatDelay()); 3239 } 3240 } break; 3241 } 3242 } 3243 } 3244 3245 final ViewRootHandler mHandler = new ViewRootHandler(); 3246 3247 /** 3248 * Something in the current window tells us we need to change the touch mode. For 3249 * example, we are not in touch mode, and the user touches the screen. 3250 * 3251 * If the touch mode has changed, tell the window manager, and handle it locally. 3252 * 3253 * @param inTouchMode Whether we want to be in touch mode. 3254 * @return True if the touch mode changed and focus changed was changed as a result 3255 */ 3256 boolean ensureTouchMode(boolean inTouchMode) { 3257 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3258 + "touch mode is " + mAttachInfo.mInTouchMode); 3259 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3260 3261 // tell the window manager 3262 try { 3263 mWindowSession.setInTouchMode(inTouchMode); 3264 } catch (RemoteException e) { 3265 throw new RuntimeException(e); 3266 } 3267 3268 // handle the change 3269 return ensureTouchModeLocally(inTouchMode); 3270 } 3271 3272 /** 3273 * Ensure that the touch mode for this window is set, and if it is changing, 3274 * take the appropriate action. 3275 * @param inTouchMode Whether we want to be in touch mode. 3276 * @return True if the touch mode changed and focus changed was changed as a result 3277 */ 3278 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3279 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3280 + "touch mode is " + mAttachInfo.mInTouchMode); 3281 3282 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3283 3284 mAttachInfo.mInTouchMode = inTouchMode; 3285 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3286 3287 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3288 } 3289 3290 private boolean enterTouchMode() { 3291 if (mView != null) { 3292 if (mView.hasFocus()) { 3293 // note: not relying on mFocusedView here because this could 3294 // be when the window is first being added, and mFocused isn't 3295 // set yet. 3296 final View focused = mView.findFocus(); 3297 if (focused != null && !focused.isFocusableInTouchMode()) { 3298 final ViewGroup ancestorToTakeFocus = 3299 findAncestorToTakeFocusInTouchMode(focused); 3300 if (ancestorToTakeFocus != null) { 3301 // there is an ancestor that wants focus after its descendants that 3302 // is focusable in touch mode.. give it focus 3303 return ancestorToTakeFocus.requestFocus(); 3304 } else { 3305 // nothing appropriate to have focus in touch mode, clear it out 3306 focused.unFocus(); 3307 return true; 3308 } 3309 } 3310 } 3311 } 3312 return false; 3313 } 3314 3315 /** 3316 * Find an ancestor of focused that wants focus after its descendants and is 3317 * focusable in touch mode. 3318 * @param focused The currently focused view. 3319 * @return An appropriate view, or null if no such view exists. 3320 */ 3321 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3322 ViewParent parent = focused.getParent(); 3323 while (parent instanceof ViewGroup) { 3324 final ViewGroup vgParent = (ViewGroup) parent; 3325 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3326 && vgParent.isFocusableInTouchMode()) { 3327 return vgParent; 3328 } 3329 if (vgParent.isRootNamespace()) { 3330 return null; 3331 } else { 3332 parent = vgParent.getParent(); 3333 } 3334 } 3335 return null; 3336 } 3337 3338 private boolean leaveTouchMode() { 3339 if (mView != null) { 3340 if (mView.hasFocus()) { 3341 View focusedView = mView.findFocus(); 3342 if (!(focusedView instanceof ViewGroup)) { 3343 // some view has focus, let it keep it 3344 return false; 3345 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3346 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3347 // some view group has focus, and doesn't prefer its children 3348 // over itself for focus, so let them keep it. 3349 return false; 3350 } 3351 } 3352 3353 // find the best view to give focus to in this brave new non-touch-mode 3354 // world 3355 final View focused = focusSearch(null, View.FOCUS_DOWN); 3356 if (focused != null) { 3357 return focused.requestFocus(View.FOCUS_DOWN); 3358 } 3359 } 3360 return false; 3361 } 3362 3363 private int deliverInputEvent(QueuedInputEvent q) { 3364 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3365 try { 3366 if (q.mEvent instanceof KeyEvent) { 3367 return deliverKeyEvent(q); 3368 } else { 3369 final int source = q.mEvent.getSource(); 3370 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3371 return deliverPointerEvent(q); 3372 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3373 return deliverTrackballEvent(q); 3374 } else { 3375 return deliverGenericMotionEvent(q); 3376 } 3377 } 3378 } finally { 3379 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3380 } 3381 } 3382 3383 private int deliverInputEventPostIme(QueuedInputEvent q) { 3384 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3385 try { 3386 if (q.mEvent instanceof KeyEvent) { 3387 return deliverKeyEventPostIme(q); 3388 } else { 3389 final int source = q.mEvent.getSource(); 3390 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3391 return deliverTrackballEventPostIme(q); 3392 } else { 3393 return deliverGenericMotionEventPostIme(q); 3394 } 3395 } 3396 } finally { 3397 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3398 } 3399 } 3400 3401 private int deliverPointerEvent(QueuedInputEvent q) { 3402 final MotionEvent event = (MotionEvent)q.mEvent; 3403 final boolean isTouchEvent = event.isTouchEvent(); 3404 if (mInputEventConsistencyVerifier != null) { 3405 if (isTouchEvent) { 3406 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3407 } else { 3408 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3409 } 3410 } 3411 3412 // If there is no view, then the event will not be handled. 3413 if (mView == null || !mAdded) { 3414 return EVENT_NOT_HANDLED; 3415 } 3416 3417 // Translate the pointer event for compatibility, if needed. 3418 if (mTranslator != null) { 3419 mTranslator.translateEventInScreenToAppWindow(event); 3420 } 3421 3422 // Enter touch mode on down or scroll. 3423 final int action = event.getAction(); 3424 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3425 ensureTouchMode(true); 3426 } 3427 3428 // Offset the scroll position. 3429 if (mCurScrollY != 0) { 3430 event.offsetLocation(0, mCurScrollY); 3431 } 3432 if (MEASURE_LATENCY) { 3433 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3434 } 3435 3436 // Remember the touch position for possible drag-initiation. 3437 if (isTouchEvent) { 3438 mLastTouchPoint.x = event.getRawX(); 3439 mLastTouchPoint.y = event.getRawY(); 3440 } 3441 3442 // Dispatch touch to view hierarchy. 3443 boolean handled = mView.dispatchPointerEvent(event); 3444 if (MEASURE_LATENCY) { 3445 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3446 } 3447 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3448 } 3449 3450 private int deliverTrackballEvent(QueuedInputEvent q) { 3451 final MotionEvent event = (MotionEvent)q.mEvent; 3452 if (mInputEventConsistencyVerifier != null) { 3453 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3454 } 3455 3456 int result = EVENT_POST_IME; 3457 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3458 if (LOCAL_LOGV) 3459 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3460 3461 // Dispatch to the IME before propagating down the view hierarchy. 3462 result = dispatchImeInputEvent(q); 3463 } 3464 return result; 3465 } 3466 3467 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3468 final MotionEvent event = (MotionEvent) q.mEvent; 3469 3470 // If there is no view, then the event will not be handled. 3471 if (mView == null || !mAdded) { 3472 return EVENT_NOT_HANDLED; 3473 } 3474 3475 // Deliver the trackball event to the view. 3476 if (mView.dispatchTrackballEvent(event)) { 3477 // If we reach this, we delivered a trackball event to mView and 3478 // mView consumed it. Because we will not translate the trackball 3479 // event into a key event, touch mode will not exit, so we exit 3480 // touch mode here. 3481 ensureTouchMode(false); 3482 mLastTrackballTime = Integer.MIN_VALUE; 3483 return EVENT_HANDLED; 3484 } 3485 3486 // Translate the trackball event into DPAD keys and try to deliver those. 3487 final TrackballAxis x = mTrackballAxisX; 3488 final TrackballAxis y = mTrackballAxisY; 3489 3490 long curTime = SystemClock.uptimeMillis(); 3491 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3492 // It has been too long since the last movement, 3493 // so restart at the beginning. 3494 x.reset(0); 3495 y.reset(0); 3496 mLastTrackballTime = curTime; 3497 } 3498 3499 final int action = event.getAction(); 3500 final int metaState = event.getMetaState(); 3501 switch (action) { 3502 case MotionEvent.ACTION_DOWN: 3503 x.reset(2); 3504 y.reset(2); 3505 enqueueInputEvent(new KeyEvent(curTime, curTime, 3506 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3507 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3508 InputDevice.SOURCE_KEYBOARD)); 3509 break; 3510 case MotionEvent.ACTION_UP: 3511 x.reset(2); 3512 y.reset(2); 3513 enqueueInputEvent(new KeyEvent(curTime, curTime, 3514 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3515 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3516 InputDevice.SOURCE_KEYBOARD)); 3517 break; 3518 } 3519 3520 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3521 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3522 + " move=" + event.getX() 3523 + " / Y=" + y.position + " step=" 3524 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3525 + " move=" + event.getY()); 3526 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3527 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3528 3529 // Generate DPAD events based on the trackball movement. 3530 // We pick the axis that has moved the most as the direction of 3531 // the DPAD. When we generate DPAD events for one axis, then the 3532 // other axis is reset -- we don't want to perform DPAD jumps due 3533 // to slight movements in the trackball when making major movements 3534 // along the other axis. 3535 int keycode = 0; 3536 int movement = 0; 3537 float accel = 1; 3538 if (xOff > yOff) { 3539 movement = x.generate((2/event.getXPrecision())); 3540 if (movement != 0) { 3541 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3542 : KeyEvent.KEYCODE_DPAD_LEFT; 3543 accel = x.acceleration; 3544 y.reset(2); 3545 } 3546 } else if (yOff > 0) { 3547 movement = y.generate((2/event.getYPrecision())); 3548 if (movement != 0) { 3549 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3550 : KeyEvent.KEYCODE_DPAD_UP; 3551 accel = y.acceleration; 3552 x.reset(2); 3553 } 3554 } 3555 3556 if (keycode != 0) { 3557 if (movement < 0) movement = -movement; 3558 int accelMovement = (int)(movement * accel); 3559 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3560 + " accelMovement=" + accelMovement 3561 + " accel=" + accel); 3562 if (accelMovement > movement) { 3563 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3564 + keycode); 3565 movement--; 3566 int repeatCount = accelMovement - movement; 3567 enqueueInputEvent(new KeyEvent(curTime, curTime, 3568 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3569 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3570 InputDevice.SOURCE_KEYBOARD)); 3571 } 3572 while (movement > 0) { 3573 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3574 + keycode); 3575 movement--; 3576 curTime = SystemClock.uptimeMillis(); 3577 enqueueInputEvent(new KeyEvent(curTime, curTime, 3578 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3579 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3580 InputDevice.SOURCE_KEYBOARD)); 3581 enqueueInputEvent(new KeyEvent(curTime, curTime, 3582 KeyEvent.ACTION_UP, keycode, 0, metaState, 3583 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3584 InputDevice.SOURCE_KEYBOARD)); 3585 } 3586 mLastTrackballTime = curTime; 3587 } 3588 3589 // Unfortunately we can't tell whether the application consumed the keys, so 3590 // we always consider the trackball event handled. 3591 return EVENT_HANDLED; 3592 } 3593 3594 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3595 final MotionEvent event = (MotionEvent)q.mEvent; 3596 if (mInputEventConsistencyVerifier != null) { 3597 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3598 } 3599 3600 int result = EVENT_POST_IME; 3601 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3602 if (LOCAL_LOGV) 3603 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3604 3605 // Dispatch to the IME before propagating down the view hierarchy. 3606 result = dispatchImeInputEvent(q); 3607 } 3608 return result; 3609 } 3610 3611 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3612 final MotionEvent event = (MotionEvent) q.mEvent; 3613 final int source = event.getSource(); 3614 final boolean isJoystick = event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK); 3615 final boolean isTouchNavigation = event.isFromSource(InputDevice.SOURCE_TOUCH_NAVIGATION); 3616 3617 // If there is no view, then the event will not be handled. 3618 if (mView == null || !mAdded) { 3619 if (isJoystick) { 3620 updateJoystickDirection(event, false); 3621 } else if (isTouchNavigation) { 3622 mSimulatedDpad.updateTouchNavigation(this, event, false); 3623 } 3624 return EVENT_NOT_HANDLED; 3625 } 3626 3627 // Deliver the event to the view. 3628 if (mView.dispatchGenericMotionEvent(event)) { 3629 if (isJoystick) { 3630 updateJoystickDirection(event, false); 3631 } else if (isTouchNavigation) { 3632 mSimulatedDpad.updateTouchNavigation(this, event, false); 3633 } 3634 return EVENT_HANDLED; 3635 } 3636 3637 if (isJoystick) { 3638 // Translate the joystick event into DPAD keys and try to deliver 3639 // those. 3640 updateJoystickDirection(event, true); 3641 return EVENT_HANDLED; 3642 } 3643 if (isTouchNavigation) { 3644 mSimulatedDpad.updateTouchNavigation(this, event, true); 3645 return EVENT_HANDLED; 3646 } 3647 return EVENT_NOT_HANDLED; 3648 } 3649 3650 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3651 final long time = event.getEventTime(); 3652 final int metaState = event.getMetaState(); 3653 final int deviceId = event.getDeviceId(); 3654 final int source = event.getSource(); 3655 3656 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3657 if (xDirection == 0) { 3658 xDirection = joystickAxisValueToDirection(event.getX()); 3659 } 3660 3661 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3662 if (yDirection == 0) { 3663 yDirection = joystickAxisValueToDirection(event.getY()); 3664 } 3665 3666 if (xDirection != mLastJoystickXDirection) { 3667 if (mLastJoystickXKeyCode != 0) { 3668 mHandler.removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 3669 enqueueInputEvent(new KeyEvent(time, time, 3670 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3671 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3672 mLastJoystickXKeyCode = 0; 3673 } 3674 3675 mLastJoystickXDirection = xDirection; 3676 3677 if (xDirection != 0 && synthesizeNewKeys) { 3678 mLastJoystickXKeyCode = xDirection > 0 3679 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3680 final KeyEvent e = new KeyEvent(time, time, 3681 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3682 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3683 enqueueInputEvent(e); 3684 Message m = mHandler.obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 3685 m.setAsynchronous(true); 3686 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3687 } 3688 } 3689 3690 if (yDirection != mLastJoystickYDirection) { 3691 if (mLastJoystickYKeyCode != 0) { 3692 mHandler.removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 3693 enqueueInputEvent(new KeyEvent(time, time, 3694 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3695 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3696 mLastJoystickYKeyCode = 0; 3697 } 3698 3699 mLastJoystickYDirection = yDirection; 3700 3701 if (yDirection != 0 && synthesizeNewKeys) { 3702 mLastJoystickYKeyCode = yDirection > 0 3703 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3704 final KeyEvent e = new KeyEvent(time, time, 3705 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3706 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3707 enqueueInputEvent(e); 3708 Message m = mHandler.obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 3709 m.setAsynchronous(true); 3710 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3711 } 3712 } 3713 } 3714 3715 private static int joystickAxisValueToDirection(float value) { 3716 if (value >= 0.5f) { 3717 return 1; 3718 } else if (value <= -0.5f) { 3719 return -1; 3720 } else { 3721 return 0; 3722 } 3723 } 3724 3725 /** 3726 * Returns true if the key is used for keyboard navigation. 3727 * @param keyEvent The key event. 3728 * @return True if the key is used for keyboard navigation. 3729 */ 3730 private static boolean isNavigationKey(KeyEvent keyEvent) { 3731 switch (keyEvent.getKeyCode()) { 3732 case KeyEvent.KEYCODE_DPAD_LEFT: 3733 case KeyEvent.KEYCODE_DPAD_RIGHT: 3734 case KeyEvent.KEYCODE_DPAD_UP: 3735 case KeyEvent.KEYCODE_DPAD_DOWN: 3736 case KeyEvent.KEYCODE_DPAD_CENTER: 3737 case KeyEvent.KEYCODE_PAGE_UP: 3738 case KeyEvent.KEYCODE_PAGE_DOWN: 3739 case KeyEvent.KEYCODE_MOVE_HOME: 3740 case KeyEvent.KEYCODE_MOVE_END: 3741 case KeyEvent.KEYCODE_TAB: 3742 case KeyEvent.KEYCODE_SPACE: 3743 case KeyEvent.KEYCODE_ENTER: 3744 return true; 3745 } 3746 return false; 3747 } 3748 3749 /** 3750 * Returns true if the key is used for typing. 3751 * @param keyEvent The key event. 3752 * @return True if the key is used for typing. 3753 */ 3754 private static boolean isTypingKey(KeyEvent keyEvent) { 3755 return keyEvent.getUnicodeChar() > 0; 3756 } 3757 3758 /** 3759 * See if the key event means we should leave touch mode (and leave touch mode if so). 3760 * @param event The key event. 3761 * @return Whether this key event should be consumed (meaning the act of 3762 * leaving touch mode alone is considered the event). 3763 */ 3764 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3765 // Only relevant in touch mode. 3766 if (!mAttachInfo.mInTouchMode) { 3767 return false; 3768 } 3769 3770 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3771 final int action = event.getAction(); 3772 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3773 return false; 3774 } 3775 3776 // Don't leave touch mode if the IME told us not to. 3777 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3778 return false; 3779 } 3780 3781 // If the key can be used for keyboard navigation then leave touch mode 3782 // and select a focused view if needed (in ensureTouchMode). 3783 // When a new focused view is selected, we consume the navigation key because 3784 // navigation doesn't make much sense unless a view already has focus so 3785 // the key's purpose is to set focus. 3786 if (isNavigationKey(event)) { 3787 return ensureTouchMode(false); 3788 } 3789 3790 // If the key can be used for typing then leave touch mode 3791 // and select a focused view if needed (in ensureTouchMode). 3792 // Always allow the view to process the typing key. 3793 if (isTypingKey(event)) { 3794 ensureTouchMode(false); 3795 return false; 3796 } 3797 3798 return false; 3799 } 3800 3801 private int deliverKeyEvent(QueuedInputEvent q) { 3802 final KeyEvent event = (KeyEvent)q.mEvent; 3803 if (mInputEventConsistencyVerifier != null) { 3804 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3805 } 3806 3807 int result = EVENT_POST_IME; 3808 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3809 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3810 3811 // Perform predispatching before the IME. 3812 if (mView.dispatchKeyEventPreIme(event)) { 3813 return EVENT_HANDLED; 3814 } 3815 3816 // Dispatch to the IME before propagating down the view hierarchy. 3817 result = dispatchImeInputEvent(q); 3818 } 3819 return result; 3820 } 3821 3822 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3823 final KeyEvent event = (KeyEvent)q.mEvent; 3824 3825 // If the view went away, then the event will not be handled. 3826 if (mView == null || !mAdded) { 3827 return EVENT_NOT_HANDLED; 3828 } 3829 3830 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3831 if (checkForLeavingTouchModeAndConsume(event)) { 3832 return EVENT_HANDLED; 3833 } 3834 3835 // Make sure the fallback event policy sees all keys that will be delivered to the 3836 // view hierarchy. 3837 mFallbackEventHandler.preDispatchKeyEvent(event); 3838 3839 // Deliver the key to the view hierarchy. 3840 if (mView.dispatchKeyEvent(event)) { 3841 return EVENT_HANDLED; 3842 } 3843 3844 // If the Control modifier is held, try to interpret the key as a shortcut. 3845 if (event.getAction() == KeyEvent.ACTION_DOWN 3846 && event.isCtrlPressed() 3847 && event.getRepeatCount() == 0 3848 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3849 if (mView.dispatchKeyShortcutEvent(event)) { 3850 return EVENT_HANDLED; 3851 } 3852 } 3853 3854 // Apply the fallback event policy. 3855 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3856 return EVENT_HANDLED; 3857 } 3858 3859 // Handle automatic focus changes. 3860 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3861 int direction = 0; 3862 switch (event.getKeyCode()) { 3863 case KeyEvent.KEYCODE_DPAD_LEFT: 3864 if (event.hasNoModifiers()) { 3865 direction = View.FOCUS_LEFT; 3866 } 3867 break; 3868 case KeyEvent.KEYCODE_DPAD_RIGHT: 3869 if (event.hasNoModifiers()) { 3870 direction = View.FOCUS_RIGHT; 3871 } 3872 break; 3873 case KeyEvent.KEYCODE_DPAD_UP: 3874 if (event.hasNoModifiers()) { 3875 direction = View.FOCUS_UP; 3876 } 3877 break; 3878 case KeyEvent.KEYCODE_DPAD_DOWN: 3879 if (event.hasNoModifiers()) { 3880 direction = View.FOCUS_DOWN; 3881 } 3882 break; 3883 case KeyEvent.KEYCODE_TAB: 3884 if (event.hasNoModifiers()) { 3885 direction = View.FOCUS_FORWARD; 3886 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3887 direction = View.FOCUS_BACKWARD; 3888 } 3889 break; 3890 } 3891 if (direction != 0) { 3892 View focused = mView.findFocus(); 3893 if (focused != null) { 3894 View v = focused.focusSearch(direction); 3895 if (v != null && v != focused) { 3896 // do the math the get the interesting rect 3897 // of previous focused into the coord system of 3898 // newly focused view 3899 focused.getFocusedRect(mTempRect); 3900 if (mView instanceof ViewGroup) { 3901 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3902 focused, mTempRect); 3903 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3904 v, mTempRect); 3905 } 3906 if (v.requestFocus(direction, mTempRect)) { 3907 playSoundEffect(SoundEffectConstants 3908 .getContantForFocusDirection(direction)); 3909 return EVENT_HANDLED; 3910 } 3911 } 3912 3913 // Give the focused view a last chance to handle the dpad key. 3914 if (mView.dispatchUnhandledMove(focused, direction)) { 3915 return EVENT_HANDLED; 3916 } 3917 } else { 3918 // find the best view to give focus to in this non-touch-mode with no-focus 3919 View v = focusSearch(null, direction); 3920 if (v != null && v.requestFocus(direction)) { 3921 return EVENT_HANDLED; 3922 } 3923 } 3924 } 3925 } 3926 3927 // Key was unhandled. 3928 return EVENT_NOT_HANDLED; 3929 } 3930 3931 /* drag/drop */ 3932 void setLocalDragState(Object obj) { 3933 mLocalDragState = obj; 3934 } 3935 3936 private void handleDragEvent(DragEvent event) { 3937 // From the root, only drag start/end/location are dispatched. entered/exited 3938 // are determined and dispatched by the viewgroup hierarchy, who then report 3939 // that back here for ultimate reporting back to the framework. 3940 if (mView != null && mAdded) { 3941 final int what = event.mAction; 3942 3943 if (what == DragEvent.ACTION_DRAG_EXITED) { 3944 // A direct EXITED event means that the window manager knows we've just crossed 3945 // a window boundary, so the current drag target within this one must have 3946 // just been exited. Send it the usual notifications and then we're done 3947 // for now. 3948 mView.dispatchDragEvent(event); 3949 } else { 3950 // Cache the drag description when the operation starts, then fill it in 3951 // on subsequent calls as a convenience 3952 if (what == DragEvent.ACTION_DRAG_STARTED) { 3953 mCurrentDragView = null; // Start the current-recipient tracking 3954 mDragDescription = event.mClipDescription; 3955 } else { 3956 event.mClipDescription = mDragDescription; 3957 } 3958 3959 // For events with a [screen] location, translate into window coordinates 3960 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3961 mDragPoint.set(event.mX, event.mY); 3962 if (mTranslator != null) { 3963 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3964 } 3965 3966 if (mCurScrollY != 0) { 3967 mDragPoint.offset(0, mCurScrollY); 3968 } 3969 3970 event.mX = mDragPoint.x; 3971 event.mY = mDragPoint.y; 3972 } 3973 3974 // Remember who the current drag target is pre-dispatch 3975 final View prevDragView = mCurrentDragView; 3976 3977 // Now dispatch the drag/drop event 3978 boolean result = mView.dispatchDragEvent(event); 3979 3980 // If we changed apparent drag target, tell the OS about it 3981 if (prevDragView != mCurrentDragView) { 3982 try { 3983 if (prevDragView != null) { 3984 mWindowSession.dragRecipientExited(mWindow); 3985 } 3986 if (mCurrentDragView != null) { 3987 mWindowSession.dragRecipientEntered(mWindow); 3988 } 3989 } catch (RemoteException e) { 3990 Slog.e(TAG, "Unable to note drag target change"); 3991 } 3992 } 3993 3994 // Report the drop result when we're done 3995 if (what == DragEvent.ACTION_DROP) { 3996 mDragDescription = null; 3997 try { 3998 Log.i(TAG, "Reporting drop result: " + result); 3999 mWindowSession.reportDropResult(mWindow, result); 4000 } catch (RemoteException e) { 4001 Log.e(TAG, "Unable to report drop result"); 4002 } 4003 } 4004 4005 // When the drag operation ends, release any local state object 4006 // that may have been in use 4007 if (what == DragEvent.ACTION_DRAG_ENDED) { 4008 setLocalDragState(null); 4009 } 4010 } 4011 } 4012 event.recycle(); 4013 } 4014 4015 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4016 if (mSeq != args.seq) { 4017 // The sequence has changed, so we need to update our value and make 4018 // sure to do a traversal afterward so the window manager is given our 4019 // most recent data. 4020 mSeq = args.seq; 4021 mAttachInfo.mForceReportNewAttributes = true; 4022 scheduleTraversals(); 4023 } 4024 if (mView == null) return; 4025 if (args.localChanges != 0) { 4026 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4027 } 4028 if (mAttachInfo != null) { 4029 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4030 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4031 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4032 mView.dispatchSystemUiVisibilityChanged(visibility); 4033 } 4034 } 4035 } 4036 4037 public void handleDispatchDoneAnimating() { 4038 if (mWindowsAnimating) { 4039 mWindowsAnimating = false; 4040 if (!mDirty.isEmpty() || mIsAnimating) { 4041 scheduleTraversals(); 4042 } 4043 } 4044 } 4045 4046 public void getLastTouchPoint(Point outLocation) { 4047 outLocation.x = (int) mLastTouchPoint.x; 4048 outLocation.y = (int) mLastTouchPoint.y; 4049 } 4050 4051 public void setDragFocus(View newDragTarget) { 4052 if (mCurrentDragView != newDragTarget) { 4053 mCurrentDragView = newDragTarget; 4054 } 4055 } 4056 4057 private AudioManager getAudioManager() { 4058 if (mView == null) { 4059 throw new IllegalStateException("getAudioManager called when there is no mView"); 4060 } 4061 if (mAudioManager == null) { 4062 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4063 } 4064 return mAudioManager; 4065 } 4066 4067 public AccessibilityInteractionController getAccessibilityInteractionController() { 4068 if (mView == null) { 4069 throw new IllegalStateException("getAccessibilityInteractionController" 4070 + " called when there is no mView"); 4071 } 4072 if (mAccessibilityInteractionController == null) { 4073 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4074 } 4075 return mAccessibilityInteractionController; 4076 } 4077 4078 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4079 boolean insetsPending) throws RemoteException { 4080 4081 float appScale = mAttachInfo.mApplicationScale; 4082 boolean restore = false; 4083 if (params != null && mTranslator != null) { 4084 restore = true; 4085 params.backup(); 4086 mTranslator.translateWindowLayout(params); 4087 } 4088 if (params != null) { 4089 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4090 } 4091 mPendingConfiguration.seq = 0; 4092 //Log.d(TAG, ">>>>>> CALLING relayout"); 4093 if (params != null && mOrigWindowType != params.type) { 4094 // For compatibility with old apps, don't crash here. 4095 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4096 Slog.w(TAG, "Window type can not be changed after " 4097 + "the window is added; ignoring change of " + mView); 4098 params.type = mOrigWindowType; 4099 } 4100 } 4101 int relayoutResult = mWindowSession.relayout( 4102 mWindow, mSeq, params, 4103 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4104 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4105 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4106 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4107 mPendingConfiguration, mSurface); 4108 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4109 if (restore) { 4110 params.restore(); 4111 } 4112 4113 if (mTranslator != null) { 4114 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4115 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4116 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4117 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4118 } 4119 return relayoutResult; 4120 } 4121 4122 /** 4123 * {@inheritDoc} 4124 */ 4125 public void playSoundEffect(int effectId) { 4126 checkThread(); 4127 4128 try { 4129 final AudioManager audioManager = getAudioManager(); 4130 4131 switch (effectId) { 4132 case SoundEffectConstants.CLICK: 4133 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4134 return; 4135 case SoundEffectConstants.NAVIGATION_DOWN: 4136 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4137 return; 4138 case SoundEffectConstants.NAVIGATION_LEFT: 4139 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4140 return; 4141 case SoundEffectConstants.NAVIGATION_RIGHT: 4142 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4143 return; 4144 case SoundEffectConstants.NAVIGATION_UP: 4145 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4146 return; 4147 default: 4148 throw new IllegalArgumentException("unknown effect id " + effectId + 4149 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4150 } 4151 } catch (IllegalStateException e) { 4152 // Exception thrown by getAudioManager() when mView is null 4153 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4154 e.printStackTrace(); 4155 } 4156 } 4157 4158 /** 4159 * {@inheritDoc} 4160 */ 4161 public boolean performHapticFeedback(int effectId, boolean always) { 4162 try { 4163 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4164 } catch (RemoteException e) { 4165 return false; 4166 } 4167 } 4168 4169 /** 4170 * {@inheritDoc} 4171 */ 4172 public View focusSearch(View focused, int direction) { 4173 checkThread(); 4174 if (!(mView instanceof ViewGroup)) { 4175 return null; 4176 } 4177 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4178 } 4179 4180 public void debug() { 4181 mView.debug(); 4182 } 4183 4184 public void dumpGfxInfo(int[] info) { 4185 info[0] = info[1] = 0; 4186 if (mView != null) { 4187 getGfxInfo(mView, info); 4188 } 4189 } 4190 4191 private static void getGfxInfo(View view, int[] info) { 4192 DisplayList displayList = view.mDisplayList; 4193 info[0]++; 4194 if (displayList != null) { 4195 info[1] += displayList.getSize(); 4196 } 4197 4198 if (view instanceof ViewGroup) { 4199 ViewGroup group = (ViewGroup) view; 4200 4201 int count = group.getChildCount(); 4202 for (int i = 0; i < count; i++) { 4203 getGfxInfo(group.getChildAt(i), info); 4204 } 4205 } 4206 } 4207 4208 public void die(boolean immediate) { 4209 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4210 // done by dispatchDetachedFromWindow will cause havoc on return. 4211 if (immediate && !mIsInTraversal) { 4212 doDie(); 4213 } else { 4214 if (!mIsDrawing) { 4215 destroyHardwareRenderer(); 4216 } else { 4217 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4218 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4219 } 4220 mHandler.sendEmptyMessage(MSG_DIE); 4221 } 4222 } 4223 4224 void doDie() { 4225 checkThread(); 4226 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4227 synchronized (this) { 4228 if (mAdded) { 4229 dispatchDetachedFromWindow(); 4230 } 4231 4232 if (mAdded && !mFirst) { 4233 invalidateDisplayLists(); 4234 destroyHardwareRenderer(); 4235 4236 if (mView != null) { 4237 int viewVisibility = mView.getVisibility(); 4238 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4239 if (mWindowAttributesChanged || viewVisibilityChanged) { 4240 // If layout params have been changed, first give them 4241 // to the window manager to make sure it has the correct 4242 // animation info. 4243 try { 4244 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4245 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4246 mWindowSession.finishDrawing(mWindow); 4247 } 4248 } catch (RemoteException e) { 4249 } 4250 } 4251 4252 mSurface.release(); 4253 } 4254 } 4255 4256 mAdded = false; 4257 } 4258 } 4259 4260 public void requestUpdateConfiguration(Configuration config) { 4261 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4262 mHandler.sendMessage(msg); 4263 } 4264 4265 public void loadSystemProperties() { 4266 mHandler.post(new Runnable() { 4267 @Override 4268 public void run() { 4269 // Profiling 4270 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4271 profileRendering(mAttachInfo.mHasWindowFocus); 4272 4273 // Hardware rendering 4274 if (mAttachInfo.mHardwareRenderer != null) { 4275 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4276 invalidate(); 4277 } 4278 } 4279 4280 // Layout debugging 4281 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4282 if (layout != mAttachInfo.mDebugLayout) { 4283 mAttachInfo.mDebugLayout = layout; 4284 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4285 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4286 } 4287 } 4288 } 4289 }); 4290 } 4291 4292 private void destroyHardwareRenderer() { 4293 AttachInfo attachInfo = mAttachInfo; 4294 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4295 4296 if (hardwareRenderer != null) { 4297 if (mView != null) { 4298 hardwareRenderer.destroyHardwareResources(mView); 4299 } 4300 hardwareRenderer.destroy(true); 4301 hardwareRenderer.setRequested(false); 4302 4303 attachInfo.mHardwareRenderer = null; 4304 attachInfo.mHardwareAccelerated = false; 4305 } 4306 } 4307 4308 public void dispatchFinishInputConnection(InputConnection connection) { 4309 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4310 mHandler.sendMessage(msg); 4311 } 4312 4313 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4314 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4315 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4316 + " contentInsets=" + contentInsets.toShortString() 4317 + " visibleInsets=" + visibleInsets.toShortString() 4318 + " reportDraw=" + reportDraw); 4319 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4320 if (mTranslator != null) { 4321 mTranslator.translateRectInScreenToAppWindow(frame); 4322 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4323 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4324 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4325 } 4326 SomeArgs args = SomeArgs.obtain(); 4327 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4328 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4329 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4330 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4331 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4332 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4333 msg.obj = args; 4334 mHandler.sendMessage(msg); 4335 } 4336 4337 public void dispatchMoved(int newX, int newY) { 4338 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4339 if (mTranslator != null) { 4340 PointF point = new PointF(newX, newY); 4341 mTranslator.translatePointInScreenToAppWindow(point); 4342 newX = (int) (point.x + 0.5); 4343 newY = (int) (point.y + 0.5); 4344 } 4345 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4346 mHandler.sendMessage(msg); 4347 } 4348 4349 /** 4350 * Represents a pending input event that is waiting in a queue. 4351 * 4352 * Input events are processed in serial order by the timestamp specified by 4353 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4354 * one input event to the application at a time and waits for the application 4355 * to finish handling it before delivering the next one. 4356 * 4357 * However, because the application or IME can synthesize and inject multiple 4358 * key events at a time without going through the input dispatcher, we end up 4359 * needing a queue on the application's side. 4360 */ 4361 private static final class QueuedInputEvent { 4362 public static final int FLAG_DELIVER_POST_IME = 1; 4363 4364 public QueuedInputEvent mNext; 4365 4366 public InputEvent mEvent; 4367 public InputEventReceiver mReceiver; 4368 public int mFlags; 4369 } 4370 4371 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4372 InputEventReceiver receiver, int flags) { 4373 QueuedInputEvent q = mQueuedInputEventPool; 4374 if (q != null) { 4375 mQueuedInputEventPoolSize -= 1; 4376 mQueuedInputEventPool = q.mNext; 4377 q.mNext = null; 4378 } else { 4379 q = new QueuedInputEvent(); 4380 } 4381 4382 q.mEvent = event; 4383 q.mReceiver = receiver; 4384 q.mFlags = flags; 4385 return q; 4386 } 4387 4388 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4389 q.mEvent = null; 4390 q.mReceiver = null; 4391 4392 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4393 mQueuedInputEventPoolSize += 1; 4394 q.mNext = mQueuedInputEventPool; 4395 mQueuedInputEventPool = q; 4396 } 4397 } 4398 4399 void enqueueInputEvent(InputEvent event) { 4400 enqueueInputEvent(event, null, 0, false); 4401 } 4402 4403 void enqueueInputEvent(InputEvent event, 4404 InputEventReceiver receiver, int flags, boolean processImmediately) { 4405 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4406 4407 // Always enqueue the input event in order, regardless of its time stamp. 4408 // We do this because the application or the IME may inject key events 4409 // in response to touch events and we want to ensure that the injected keys 4410 // are processed in the order they were received and we cannot trust that 4411 // the time stamp of injected events are monotonic. 4412 QueuedInputEvent last = mPendingInputEventTail; 4413 if (last == null) { 4414 mPendingInputEventHead = q; 4415 mPendingInputEventTail = q; 4416 } else { 4417 last.mNext = q; 4418 mPendingInputEventTail = q; 4419 } 4420 mPendingInputEventCount += 1; 4421 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4422 mPendingInputEventCount); 4423 4424 if (processImmediately) { 4425 doProcessInputEvents(); 4426 } else { 4427 scheduleProcessInputEvents(); 4428 } 4429 } 4430 4431 private void scheduleProcessInputEvents() { 4432 if (!mProcessInputEventsScheduled) { 4433 mProcessInputEventsScheduled = true; 4434 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4435 msg.setAsynchronous(true); 4436 mHandler.sendMessage(msg); 4437 } 4438 } 4439 4440 void doProcessInputEvents() { 4441 // Handle all of the available pending input events. Currently this will immediately 4442 // process all of the events it can until it encounters one that must go through the IME. 4443 // After that it will continue adding events to the current input queue but will wait for a 4444 // response from the IME, regardless of whether that particular event needs it or not, in 4445 // order to guarantee ordering consistency. This could be slightly improved by only 4446 // queueing events whose source has previously encountered something that needs to be 4447 // handled by the IME, and otherwise handling them immediately since we only need to 4448 // guarantee ordering within a given source. 4449 while (mPendingInputEventHead != null) { 4450 QueuedInputEvent q = mPendingInputEventHead; 4451 mPendingInputEventHead = q.mNext; 4452 if (mPendingInputEventHead == null) { 4453 mPendingInputEventTail = null; 4454 } 4455 q.mNext = null; 4456 4457 mPendingInputEventCount -= 1; 4458 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4459 mPendingInputEventCount); 4460 4461 int result = deliverInputEvent(q); 4462 4463 if (result == EVENT_HANDLED || result == EVENT_NOT_HANDLED) { 4464 finishInputEvent(q, result == EVENT_HANDLED); 4465 } else if (result == EVENT_PENDING_IME) { 4466 enqueueCurrentInputEvent(q); 4467 } else { 4468 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4469 // If the IME decided not to handle this event, and we have no events already being 4470 // handled by the IME, go ahead and handle this one and then continue to the next 4471 // input event. Otherwise, queue it up and handle it after whatever in front of it 4472 // in the queue has been handled. 4473 if (mCurrentInputEventHead == null) { 4474 result = deliverInputEventPostIme(q); 4475 finishInputEvent(q, result == EVENT_HANDLED); 4476 } else { 4477 enqueueCurrentInputEvent(q); 4478 } 4479 } 4480 } 4481 4482 // We are done processing all input events that we can process right now 4483 // so we can clear the pending flag immediately. 4484 if (mProcessInputEventsScheduled) { 4485 mProcessInputEventsScheduled = false; 4486 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4487 } 4488 } 4489 4490 private void enqueueCurrentInputEvent(QueuedInputEvent q) { 4491 if (mCurrentInputEventHead == null) { 4492 mCurrentInputEventHead = q; 4493 mCurrentInputEventTail = q; 4494 } else { 4495 mCurrentInputEventTail.mNext = q; 4496 mCurrentInputEventTail = q; 4497 } 4498 mCurrentInputEventCount += 1; 4499 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mCurrentInputEventQueueLengthCounterName, 4500 mCurrentInputEventCount); 4501 } 4502 4503 private QueuedInputEvent dequeueCurrentInputEvent() { 4504 QueuedInputEvent q = mCurrentInputEventHead; 4505 mCurrentInputEventHead = q.mNext; 4506 if (mCurrentInputEventHead == null) { 4507 mCurrentInputEventTail = null; 4508 } 4509 q.mNext = null; 4510 mCurrentInputEventCount -= 1; 4511 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mCurrentInputEventQueueLengthCounterName, 4512 mCurrentInputEventCount); 4513 return q; 4514 } 4515 4516 int dispatchImeInputEvent(QueuedInputEvent q) { 4517 if (mLastWasImTarget) { 4518 InputMethodManager imm = InputMethodManager.peekInstance(); 4519 if (imm != null) { 4520 final InputEvent event = q.mEvent; 4521 final int seq = event.getSequenceNumber(); 4522 if (DEBUG_IMF) 4523 Log.v(TAG, "Sending input event to IME: seq=" + seq + " event=" + event); 4524 return imm.dispatchInputEvent(mView.getContext(), seq, event, 4525 mInputMethodCallback); 4526 } 4527 } 4528 return EVENT_POST_IME; 4529 } 4530 4531 void handleImeFinishedEvent(int seq, boolean handled) { 4532 QueuedInputEvent q = mCurrentInputEventHead; 4533 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4534 dequeueCurrentInputEvent(); 4535 if (DEBUG_IMF) { 4536 Log.v(TAG, "IME finished event: seq=" + seq 4537 + " handled=" + handled + " event=" + q); 4538 } 4539 4540 if (!handled) { 4541 // If the window doesn't currently have input focus, then drop 4542 // this event. This could be an event that came back from the 4543 // IME dispatch but the window has lost focus in the meantime. 4544 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4545 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4546 } else { 4547 final int result = deliverInputEventPostIme(q); 4548 if (result == EVENT_HANDLED) { 4549 handled = true; 4550 } 4551 } 4552 } 4553 4554 finishInputEvent(q, handled); 4555 4556 // Flush all of the input events that are no longer waiting on the IME 4557 while (mCurrentInputEventHead != null && (mCurrentInputEventHead.mFlags & 4558 QueuedInputEvent.FLAG_DELIVER_POST_IME) != 0) { 4559 q = dequeueCurrentInputEvent(); 4560 final int result = deliverInputEventPostIme(q); 4561 finishInputEvent(q, result == EVENT_HANDLED); 4562 } 4563 } else { 4564 if (DEBUG_IMF) { 4565 Log.v(TAG, "IME finished event: seq=" + seq 4566 + " handled=" + handled + ", event not found!"); 4567 } 4568 } 4569 4570 } 4571 4572 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4573 if (q.mReceiver != null) { 4574 q.mReceiver.finishInputEvent(q.mEvent, handled); 4575 } else { 4576 q.mEvent.recycleIfNeededAfterDispatch(); 4577 } 4578 4579 recycleQueuedInputEvent(q); 4580 } 4581 4582 private static boolean isTerminalInputEvent(InputEvent event) { 4583 if (event instanceof KeyEvent) { 4584 final KeyEvent keyEvent = (KeyEvent)event; 4585 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4586 } else { 4587 final MotionEvent motionEvent = (MotionEvent)event; 4588 final int action = motionEvent.getAction(); 4589 return action == MotionEvent.ACTION_UP 4590 || action == MotionEvent.ACTION_CANCEL 4591 || action == MotionEvent.ACTION_HOVER_EXIT; 4592 } 4593 } 4594 4595 void scheduleConsumeBatchedInput() { 4596 if (!mConsumeBatchedInputScheduled) { 4597 mConsumeBatchedInputScheduled = true; 4598 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4599 mConsumedBatchedInputRunnable, null); 4600 } 4601 } 4602 4603 void unscheduleConsumeBatchedInput() { 4604 if (mConsumeBatchedInputScheduled) { 4605 mConsumeBatchedInputScheduled = false; 4606 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4607 mConsumedBatchedInputRunnable, null); 4608 } 4609 } 4610 4611 void doConsumeBatchedInput(long frameTimeNanos) { 4612 if (mConsumeBatchedInputScheduled) { 4613 mConsumeBatchedInputScheduled = false; 4614 if (mInputEventReceiver != null) { 4615 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4616 } 4617 doProcessInputEvents(); 4618 } 4619 } 4620 4621 final class TraversalRunnable implements Runnable { 4622 @Override 4623 public void run() { 4624 doTraversal(); 4625 } 4626 } 4627 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4628 4629 final class WindowInputEventReceiver extends InputEventReceiver { 4630 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4631 super(inputChannel, looper); 4632 } 4633 4634 @Override 4635 public void onInputEvent(InputEvent event) { 4636 enqueueInputEvent(event, this, 0, true); 4637 } 4638 4639 @Override 4640 public void onBatchedInputEventPending() { 4641 scheduleConsumeBatchedInput(); 4642 } 4643 4644 @Override 4645 public void dispose() { 4646 unscheduleConsumeBatchedInput(); 4647 super.dispose(); 4648 } 4649 } 4650 WindowInputEventReceiver mInputEventReceiver; 4651 4652 final class ConsumeBatchedInputRunnable implements Runnable { 4653 @Override 4654 public void run() { 4655 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4656 } 4657 } 4658 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4659 new ConsumeBatchedInputRunnable(); 4660 boolean mConsumeBatchedInputScheduled; 4661 4662 final class InvalidateOnAnimationRunnable implements Runnable { 4663 private boolean mPosted; 4664 private ArrayList<View> mViews = new ArrayList<View>(); 4665 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4666 new ArrayList<AttachInfo.InvalidateInfo>(); 4667 private View[] mTempViews; 4668 private AttachInfo.InvalidateInfo[] mTempViewRects; 4669 4670 public void addView(View view) { 4671 synchronized (this) { 4672 mViews.add(view); 4673 postIfNeededLocked(); 4674 } 4675 } 4676 4677 public void addViewRect(AttachInfo.InvalidateInfo info) { 4678 synchronized (this) { 4679 mViewRects.add(info); 4680 postIfNeededLocked(); 4681 } 4682 } 4683 4684 public void removeView(View view) { 4685 synchronized (this) { 4686 mViews.remove(view); 4687 4688 for (int i = mViewRects.size(); i-- > 0; ) { 4689 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4690 if (info.target == view) { 4691 mViewRects.remove(i); 4692 info.recycle(); 4693 } 4694 } 4695 4696 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4697 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4698 mPosted = false; 4699 } 4700 } 4701 } 4702 4703 @Override 4704 public void run() { 4705 final int viewCount; 4706 final int viewRectCount; 4707 synchronized (this) { 4708 mPosted = false; 4709 4710 viewCount = mViews.size(); 4711 if (viewCount != 0) { 4712 mTempViews = mViews.toArray(mTempViews != null 4713 ? mTempViews : new View[viewCount]); 4714 mViews.clear(); 4715 } 4716 4717 viewRectCount = mViewRects.size(); 4718 if (viewRectCount != 0) { 4719 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4720 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4721 mViewRects.clear(); 4722 } 4723 } 4724 4725 for (int i = 0; i < viewCount; i++) { 4726 mTempViews[i].invalidate(); 4727 mTempViews[i] = null; 4728 } 4729 4730 for (int i = 0; i < viewRectCount; i++) { 4731 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4732 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4733 info.recycle(); 4734 } 4735 } 4736 4737 private void postIfNeededLocked() { 4738 if (!mPosted) { 4739 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4740 mPosted = true; 4741 } 4742 } 4743 } 4744 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4745 new InvalidateOnAnimationRunnable(); 4746 4747 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4748 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4749 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4750 } 4751 4752 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4753 long delayMilliseconds) { 4754 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4755 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4756 } 4757 4758 public void dispatchInvalidateOnAnimation(View view) { 4759 mInvalidateOnAnimationRunnable.addView(view); 4760 } 4761 4762 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4763 mInvalidateOnAnimationRunnable.addViewRect(info); 4764 } 4765 4766 public void enqueueDisplayList(DisplayList displayList) { 4767 mDisplayLists.add(displayList); 4768 } 4769 4770 public void cancelInvalidate(View view) { 4771 mHandler.removeMessages(MSG_INVALIDATE, view); 4772 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4773 // them to the pool 4774 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4775 mInvalidateOnAnimationRunnable.removeView(view); 4776 } 4777 4778 public void dispatchKey(KeyEvent event) { 4779 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4780 msg.setAsynchronous(true); 4781 mHandler.sendMessage(msg); 4782 } 4783 4784 public void dispatchKeyFromIme(KeyEvent event) { 4785 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4786 msg.setAsynchronous(true); 4787 mHandler.sendMessage(msg); 4788 } 4789 4790 public void dispatchUnhandledKey(KeyEvent event) { 4791 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4792 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4793 final int keyCode = event.getKeyCode(); 4794 final int metaState = event.getMetaState(); 4795 4796 // Check for fallback actions specified by the key character map. 4797 KeyCharacterMap.FallbackAction fallbackAction = 4798 kcm.getFallbackAction(keyCode, metaState); 4799 if (fallbackAction != null) { 4800 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4801 KeyEvent fallbackEvent = KeyEvent.obtain( 4802 event.getDownTime(), event.getEventTime(), 4803 event.getAction(), fallbackAction.keyCode, 4804 event.getRepeatCount(), fallbackAction.metaState, 4805 event.getDeviceId(), event.getScanCode(), 4806 flags, event.getSource(), null); 4807 fallbackAction.recycle(); 4808 4809 dispatchKey(fallbackEvent); 4810 } 4811 } 4812 } 4813 4814 public void dispatchAppVisibility(boolean visible) { 4815 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4816 msg.arg1 = visible ? 1 : 0; 4817 mHandler.sendMessage(msg); 4818 } 4819 4820 public void dispatchScreenStateChange(boolean on) { 4821 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4822 msg.arg1 = on ? 1 : 0; 4823 mHandler.sendMessage(msg); 4824 } 4825 4826 public void dispatchGetNewSurface() { 4827 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4828 mHandler.sendMessage(msg); 4829 } 4830 4831 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4832 Message msg = Message.obtain(); 4833 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4834 msg.arg1 = hasFocus ? 1 : 0; 4835 msg.arg2 = inTouchMode ? 1 : 0; 4836 mHandler.sendMessage(msg); 4837 } 4838 4839 public void dispatchCloseSystemDialogs(String reason) { 4840 Message msg = Message.obtain(); 4841 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4842 msg.obj = reason; 4843 mHandler.sendMessage(msg); 4844 } 4845 4846 public void dispatchDragEvent(DragEvent event) { 4847 final int what; 4848 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4849 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4850 mHandler.removeMessages(what); 4851 } else { 4852 what = MSG_DISPATCH_DRAG_EVENT; 4853 } 4854 Message msg = mHandler.obtainMessage(what, event); 4855 mHandler.sendMessage(msg); 4856 } 4857 4858 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4859 int localValue, int localChanges) { 4860 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4861 args.seq = seq; 4862 args.globalVisibility = globalVisibility; 4863 args.localValue = localValue; 4864 args.localChanges = localChanges; 4865 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4866 } 4867 4868 public void dispatchDoneAnimating() { 4869 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4870 } 4871 4872 public void dispatchCheckFocus() { 4873 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4874 // This will result in a call to checkFocus() below. 4875 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4876 } 4877 } 4878 4879 /** 4880 * Post a callback to send a 4881 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4882 * This event is send at most once every 4883 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4884 */ 4885 private void postSendWindowContentChangedCallback(View source) { 4886 if (mSendWindowContentChangedAccessibilityEvent == null) { 4887 mSendWindowContentChangedAccessibilityEvent = 4888 new SendWindowContentChangedAccessibilityEvent(); 4889 } 4890 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4891 if (oldSource == null) { 4892 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4893 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4894 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4895 } else { 4896 mSendWindowContentChangedAccessibilityEvent.mSource = 4897 getCommonPredecessor(oldSource, source); 4898 } 4899 } 4900 4901 /** 4902 * Remove a posted callback to send a 4903 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4904 */ 4905 private void removeSendWindowContentChangedCallback() { 4906 if (mSendWindowContentChangedAccessibilityEvent != null) { 4907 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4908 } 4909 } 4910 4911 public boolean showContextMenuForChild(View originalView) { 4912 return false; 4913 } 4914 4915 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4916 return null; 4917 } 4918 4919 public void createContextMenu(ContextMenu menu) { 4920 } 4921 4922 public void childDrawableStateChanged(View child) { 4923 } 4924 4925 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4926 if (mView == null) { 4927 return false; 4928 } 4929 // Intercept accessibility focus events fired by virtual nodes to keep 4930 // track of accessibility focus position in such nodes. 4931 final int eventType = event.getEventType(); 4932 switch (eventType) { 4933 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4934 final long sourceNodeId = event.getSourceNodeId(); 4935 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4936 sourceNodeId); 4937 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4938 if (source != null) { 4939 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4940 if (provider != null) { 4941 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4942 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4943 setAccessibilityFocus(source, node); 4944 } 4945 } 4946 } break; 4947 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4948 final long sourceNodeId = event.getSourceNodeId(); 4949 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4950 sourceNodeId); 4951 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4952 if (source != null) { 4953 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4954 if (provider != null) { 4955 setAccessibilityFocus(null, null); 4956 } 4957 } 4958 } break; 4959 } 4960 mAccessibilityManager.sendAccessibilityEvent(event); 4961 return true; 4962 } 4963 4964 @Override 4965 public void childAccessibilityStateChanged(View child) { 4966 postSendWindowContentChangedCallback(child); 4967 } 4968 4969 @Override 4970 public boolean canResolveLayoutDirection() { 4971 return true; 4972 } 4973 4974 @Override 4975 public boolean isLayoutDirectionResolved() { 4976 return true; 4977 } 4978 4979 @Override 4980 public int getLayoutDirection() { 4981 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 4982 } 4983 4984 @Override 4985 public boolean canResolveTextDirection() { 4986 return true; 4987 } 4988 4989 @Override 4990 public boolean isTextDirectionResolved() { 4991 return true; 4992 } 4993 4994 @Override 4995 public int getTextDirection() { 4996 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 4997 } 4998 4999 @Override 5000 public boolean canResolveTextAlignment() { 5001 return true; 5002 } 5003 5004 @Override 5005 public boolean isTextAlignmentResolved() { 5006 return true; 5007 } 5008 5009 @Override 5010 public int getTextAlignment() { 5011 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5012 } 5013 5014 private View getCommonPredecessor(View first, View second) { 5015 if (mAttachInfo != null) { 5016 if (mTempHashSet == null) { 5017 mTempHashSet = new HashSet<View>(); 5018 } 5019 HashSet<View> seen = mTempHashSet; 5020 seen.clear(); 5021 View firstCurrent = first; 5022 while (firstCurrent != null) { 5023 seen.add(firstCurrent); 5024 ViewParent firstCurrentParent = firstCurrent.mParent; 5025 if (firstCurrentParent instanceof View) { 5026 firstCurrent = (View) firstCurrentParent; 5027 } else { 5028 firstCurrent = null; 5029 } 5030 } 5031 View secondCurrent = second; 5032 while (secondCurrent != null) { 5033 if (seen.contains(secondCurrent)) { 5034 seen.clear(); 5035 return secondCurrent; 5036 } 5037 ViewParent secondCurrentParent = secondCurrent.mParent; 5038 if (secondCurrentParent instanceof View) { 5039 secondCurrent = (View) secondCurrentParent; 5040 } else { 5041 secondCurrent = null; 5042 } 5043 } 5044 seen.clear(); 5045 } 5046 return null; 5047 } 5048 5049 void checkThread() { 5050 if (mThread != Thread.currentThread()) { 5051 throw new CalledFromWrongThreadException( 5052 "Only the original thread that created a view hierarchy can touch its views."); 5053 } 5054 } 5055 5056 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5057 // ViewAncestor never intercepts touch event, so this can be a no-op 5058 } 5059 5060 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5061 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5062 if (rectangle != null) { 5063 mTempRect.set(rectangle); 5064 mTempRect.offset(0, -mCurScrollY); 5065 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5066 try { 5067 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5068 } catch (RemoteException re) { 5069 /* ignore */ 5070 } 5071 } 5072 return scrolled; 5073 } 5074 5075 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5076 // Do nothing. 5077 } 5078 5079 class TakenSurfaceHolder extends BaseSurfaceHolder { 5080 @Override 5081 public boolean onAllowLockCanvas() { 5082 return mDrawingAllowed; 5083 } 5084 5085 @Override 5086 public void onRelayoutContainer() { 5087 // Not currently interesting -- from changing between fixed and layout size. 5088 } 5089 5090 public void setFormat(int format) { 5091 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5092 } 5093 5094 public void setType(int type) { 5095 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5096 } 5097 5098 @Override 5099 public void onUpdateSurface() { 5100 // We take care of format and type changes on our own. 5101 throw new IllegalStateException("Shouldn't be here"); 5102 } 5103 5104 public boolean isCreating() { 5105 return mIsCreating; 5106 } 5107 5108 @Override 5109 public void setFixedSize(int width, int height) { 5110 throw new UnsupportedOperationException( 5111 "Currently only support sizing from layout"); 5112 } 5113 5114 public void setKeepScreenOn(boolean screenOn) { 5115 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5116 } 5117 } 5118 5119 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5120 private WeakReference<ViewRootImpl> mViewAncestor; 5121 5122 public InputMethodCallback(ViewRootImpl viewAncestor) { 5123 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5124 } 5125 5126 @Override 5127 public void finishedEvent(int seq, boolean handled) { 5128 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5129 if (viewAncestor != null) { 5130 viewAncestor.handleImeFinishedEvent(seq, handled); 5131 } 5132 } 5133 } 5134 5135 static class W extends IWindow.Stub { 5136 private final WeakReference<ViewRootImpl> mViewAncestor; 5137 private final IWindowSession mWindowSession; 5138 5139 W(ViewRootImpl viewAncestor) { 5140 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5141 mWindowSession = viewAncestor.mWindowSession; 5142 } 5143 5144 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5145 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5146 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5147 if (viewAncestor != null) { 5148 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5149 visibleInsets, reportDraw, newConfig); 5150 } 5151 } 5152 5153 @Override 5154 public void moved(int newX, int newY) { 5155 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5156 if (viewAncestor != null) { 5157 viewAncestor.dispatchMoved(newX, newY); 5158 } 5159 } 5160 5161 public void dispatchAppVisibility(boolean visible) { 5162 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5163 if (viewAncestor != null) { 5164 viewAncestor.dispatchAppVisibility(visible); 5165 } 5166 } 5167 5168 public void dispatchScreenState(boolean on) { 5169 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5170 if (viewAncestor != null) { 5171 viewAncestor.dispatchScreenStateChange(on); 5172 } 5173 } 5174 5175 public void dispatchGetNewSurface() { 5176 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5177 if (viewAncestor != null) { 5178 viewAncestor.dispatchGetNewSurface(); 5179 } 5180 } 5181 5182 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5183 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5184 if (viewAncestor != null) { 5185 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5186 } 5187 } 5188 5189 private static int checkCallingPermission(String permission) { 5190 try { 5191 return ActivityManagerNative.getDefault().checkPermission( 5192 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5193 } catch (RemoteException e) { 5194 return PackageManager.PERMISSION_DENIED; 5195 } 5196 } 5197 5198 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5199 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5200 if (viewAncestor != null) { 5201 final View view = viewAncestor.mView; 5202 if (view != null) { 5203 if (checkCallingPermission(Manifest.permission.DUMP) != 5204 PackageManager.PERMISSION_GRANTED) { 5205 throw new SecurityException("Insufficient permissions to invoke" 5206 + " executeCommand() from pid=" + Binder.getCallingPid() 5207 + ", uid=" + Binder.getCallingUid()); 5208 } 5209 5210 OutputStream clientStream = null; 5211 try { 5212 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5213 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5214 } catch (IOException e) { 5215 e.printStackTrace(); 5216 } finally { 5217 if (clientStream != null) { 5218 try { 5219 clientStream.close(); 5220 } catch (IOException e) { 5221 e.printStackTrace(); 5222 } 5223 } 5224 } 5225 } 5226 } 5227 } 5228 5229 public void closeSystemDialogs(String reason) { 5230 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5231 if (viewAncestor != null) { 5232 viewAncestor.dispatchCloseSystemDialogs(reason); 5233 } 5234 } 5235 5236 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5237 boolean sync) { 5238 if (sync) { 5239 try { 5240 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5241 } catch (RemoteException e) { 5242 } 5243 } 5244 } 5245 5246 public void dispatchWallpaperCommand(String action, int x, int y, 5247 int z, Bundle extras, boolean sync) { 5248 if (sync) { 5249 try { 5250 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5251 } catch (RemoteException e) { 5252 } 5253 } 5254 } 5255 5256 /* Drag/drop */ 5257 public void dispatchDragEvent(DragEvent event) { 5258 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5259 if (viewAncestor != null) { 5260 viewAncestor.dispatchDragEvent(event); 5261 } 5262 } 5263 5264 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5265 int localValue, int localChanges) { 5266 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5267 if (viewAncestor != null) { 5268 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5269 localValue, localChanges); 5270 } 5271 } 5272 5273 public void doneAnimating() { 5274 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5275 if (viewAncestor != null) { 5276 viewAncestor.dispatchDoneAnimating(); 5277 } 5278 } 5279 } 5280 5281 /** 5282 * Maintains state information for a single trackball axis, generating 5283 * discrete (DPAD) movements based on raw trackball motion. 5284 */ 5285 static final class TrackballAxis { 5286 /** 5287 * The maximum amount of acceleration we will apply. 5288 */ 5289 static final float MAX_ACCELERATION = 20; 5290 5291 /** 5292 * The maximum amount of time (in milliseconds) between events in order 5293 * for us to consider the user to be doing fast trackball movements, 5294 * and thus apply an acceleration. 5295 */ 5296 static final long FAST_MOVE_TIME = 150; 5297 5298 /** 5299 * Scaling factor to the time (in milliseconds) between events to how 5300 * much to multiple/divide the current acceleration. When movement 5301 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5302 * FAST_MOVE_TIME it divides it. 5303 */ 5304 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5305 5306 float position; 5307 float absPosition; 5308 float acceleration = 1; 5309 long lastMoveTime = 0; 5310 int step; 5311 int dir; 5312 int nonAccelMovement; 5313 5314 void reset(int _step) { 5315 position = 0; 5316 acceleration = 1; 5317 lastMoveTime = 0; 5318 step = _step; 5319 dir = 0; 5320 } 5321 5322 /** 5323 * Add trackball movement into the state. If the direction of movement 5324 * has been reversed, the state is reset before adding the 5325 * movement (so that you don't have to compensate for any previously 5326 * collected movement before see the result of the movement in the 5327 * new direction). 5328 * 5329 * @return Returns the absolute value of the amount of movement 5330 * collected so far. 5331 */ 5332 float collect(float off, long time, String axis) { 5333 long normTime; 5334 if (off > 0) { 5335 normTime = (long)(off * FAST_MOVE_TIME); 5336 if (dir < 0) { 5337 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5338 position = 0; 5339 step = 0; 5340 acceleration = 1; 5341 lastMoveTime = 0; 5342 } 5343 dir = 1; 5344 } else if (off < 0) { 5345 normTime = (long)((-off) * FAST_MOVE_TIME); 5346 if (dir > 0) { 5347 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5348 position = 0; 5349 step = 0; 5350 acceleration = 1; 5351 lastMoveTime = 0; 5352 } 5353 dir = -1; 5354 } else { 5355 normTime = 0; 5356 } 5357 5358 // The number of milliseconds between each movement that is 5359 // considered "normal" and will not result in any acceleration 5360 // or deceleration, scaled by the offset we have here. 5361 if (normTime > 0) { 5362 long delta = time - lastMoveTime; 5363 lastMoveTime = time; 5364 float acc = acceleration; 5365 if (delta < normTime) { 5366 // The user is scrolling rapidly, so increase acceleration. 5367 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5368 if (scale > 1) acc *= scale; 5369 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5370 + off + " normTime=" + normTime + " delta=" + delta 5371 + " scale=" + scale + " acc=" + acc); 5372 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5373 } else { 5374 // The user is scrolling slowly, so decrease acceleration. 5375 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5376 if (scale > 1) acc /= scale; 5377 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5378 + off + " normTime=" + normTime + " delta=" + delta 5379 + " scale=" + scale + " acc=" + acc); 5380 acceleration = acc > 1 ? acc : 1; 5381 } 5382 } 5383 position += off; 5384 return (absPosition = Math.abs(position)); 5385 } 5386 5387 /** 5388 * Generate the number of discrete movement events appropriate for 5389 * the currently collected trackball movement. 5390 * 5391 * @param precision The minimum movement required to generate the 5392 * first discrete movement. 5393 * 5394 * @return Returns the number of discrete movements, either positive 5395 * or negative, or 0 if there is not enough trackball movement yet 5396 * for a discrete movement. 5397 */ 5398 int generate(float precision) { 5399 int movement = 0; 5400 nonAccelMovement = 0; 5401 do { 5402 final int dir = position >= 0 ? 1 : -1; 5403 switch (step) { 5404 // If we are going to execute the first step, then we want 5405 // to do this as soon as possible instead of waiting for 5406 // a full movement, in order to make things look responsive. 5407 case 0: 5408 if (absPosition < precision) { 5409 return movement; 5410 } 5411 movement += dir; 5412 nonAccelMovement += dir; 5413 step = 1; 5414 break; 5415 // If we have generated the first movement, then we need 5416 // to wait for the second complete trackball motion before 5417 // generating the second discrete movement. 5418 case 1: 5419 if (absPosition < 2) { 5420 return movement; 5421 } 5422 movement += dir; 5423 nonAccelMovement += dir; 5424 position += dir > 0 ? -2 : 2; 5425 absPosition = Math.abs(position); 5426 step = 2; 5427 break; 5428 // After the first two, we generate discrete movements 5429 // consistently with the trackball, applying an acceleration 5430 // if the trackball is moving quickly. This is a simple 5431 // acceleration on top of what we already compute based 5432 // on how quickly the wheel is being turned, to apply 5433 // a longer increasing acceleration to continuous movement 5434 // in one direction. 5435 default: 5436 if (absPosition < 1) { 5437 return movement; 5438 } 5439 movement += dir; 5440 position += dir >= 0 ? -1 : 1; 5441 absPosition = Math.abs(position); 5442 float acc = acceleration; 5443 acc *= 1.1f; 5444 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5445 break; 5446 } 5447 } while (true); 5448 } 5449 } 5450 5451 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5452 public CalledFromWrongThreadException(String msg) { 5453 super(msg); 5454 } 5455 } 5456 5457 private SurfaceHolder mHolder = new SurfaceHolder() { 5458 // we only need a SurfaceHolder for opengl. it would be nice 5459 // to implement everything else though, especially the callback 5460 // support (opengl doesn't make use of it right now, but eventually 5461 // will). 5462 public Surface getSurface() { 5463 return mSurface; 5464 } 5465 5466 public boolean isCreating() { 5467 return false; 5468 } 5469 5470 public void addCallback(Callback callback) { 5471 } 5472 5473 public void removeCallback(Callback callback) { 5474 } 5475 5476 public void setFixedSize(int width, int height) { 5477 } 5478 5479 public void setSizeFromLayout() { 5480 } 5481 5482 public void setFormat(int format) { 5483 } 5484 5485 public void setType(int type) { 5486 } 5487 5488 public void setKeepScreenOn(boolean screenOn) { 5489 } 5490 5491 public Canvas lockCanvas() { 5492 return null; 5493 } 5494 5495 public Canvas lockCanvas(Rect dirty) { 5496 return null; 5497 } 5498 5499 public void unlockCanvasAndPost(Canvas canvas) { 5500 } 5501 public Rect getSurfaceFrame() { 5502 return null; 5503 } 5504 }; 5505 5506 static RunQueue getRunQueue() { 5507 RunQueue rq = sRunQueues.get(); 5508 if (rq != null) { 5509 return rq; 5510 } 5511 rq = new RunQueue(); 5512 sRunQueues.set(rq); 5513 return rq; 5514 } 5515 5516 /** 5517 * The run queue is used to enqueue pending work from Views when no Handler is 5518 * attached. The work is executed during the next call to performTraversals on 5519 * the thread. 5520 * @hide 5521 */ 5522 static final class RunQueue { 5523 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5524 5525 void post(Runnable action) { 5526 postDelayed(action, 0); 5527 } 5528 5529 void postDelayed(Runnable action, long delayMillis) { 5530 HandlerAction handlerAction = new HandlerAction(); 5531 handlerAction.action = action; 5532 handlerAction.delay = delayMillis; 5533 5534 synchronized (mActions) { 5535 mActions.add(handlerAction); 5536 } 5537 } 5538 5539 void removeCallbacks(Runnable action) { 5540 final HandlerAction handlerAction = new HandlerAction(); 5541 handlerAction.action = action; 5542 5543 synchronized (mActions) { 5544 final ArrayList<HandlerAction> actions = mActions; 5545 5546 while (actions.remove(handlerAction)) { 5547 // Keep going 5548 } 5549 } 5550 } 5551 5552 void executeActions(Handler handler) { 5553 synchronized (mActions) { 5554 final ArrayList<HandlerAction> actions = mActions; 5555 final int count = actions.size(); 5556 5557 for (int i = 0; i < count; i++) { 5558 final HandlerAction handlerAction = actions.get(i); 5559 handler.postDelayed(handlerAction.action, handlerAction.delay); 5560 } 5561 5562 actions.clear(); 5563 } 5564 } 5565 5566 private static class HandlerAction { 5567 Runnable action; 5568 long delay; 5569 5570 @Override 5571 public boolean equals(Object o) { 5572 if (this == o) return true; 5573 if (o == null || getClass() != o.getClass()) return false; 5574 5575 HandlerAction that = (HandlerAction) o; 5576 return !(action != null ? !action.equals(that.action) : that.action != null); 5577 5578 } 5579 5580 @Override 5581 public int hashCode() { 5582 int result = action != null ? action.hashCode() : 0; 5583 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5584 return result; 5585 } 5586 } 5587 } 5588 5589 /** 5590 * Class for managing the accessibility interaction connection 5591 * based on the global accessibility state. 5592 */ 5593 final class AccessibilityInteractionConnectionManager 5594 implements AccessibilityStateChangeListener { 5595 public void onAccessibilityStateChanged(boolean enabled) { 5596 if (enabled) { 5597 ensureConnection(); 5598 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5599 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5600 View focusedView = mView.findFocus(); 5601 if (focusedView != null && focusedView != mView) { 5602 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5603 } 5604 } 5605 } else { 5606 ensureNoConnection(); 5607 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5608 } 5609 } 5610 5611 public void ensureConnection() { 5612 if (mAttachInfo != null) { 5613 final boolean registered = 5614 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5615 if (!registered) { 5616 mAttachInfo.mAccessibilityWindowId = 5617 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5618 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5619 } 5620 } 5621 } 5622 5623 public void ensureNoConnection() { 5624 final boolean registered = 5625 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5626 if (registered) { 5627 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5628 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5629 } 5630 } 5631 } 5632 5633 /** 5634 * This class is an interface this ViewAncestor provides to the 5635 * AccessibilityManagerService to the latter can interact with 5636 * the view hierarchy in this ViewAncestor. 5637 */ 5638 static final class AccessibilityInteractionConnection 5639 extends IAccessibilityInteractionConnection.Stub { 5640 private final WeakReference<ViewRootImpl> mViewRootImpl; 5641 5642 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5643 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5644 } 5645 5646 @Override 5647 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5648 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5649 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5650 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5651 if (viewRootImpl != null && viewRootImpl.mView != null) { 5652 viewRootImpl.getAccessibilityInteractionController() 5653 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5654 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5655 spec); 5656 } else { 5657 // We cannot make the call and notify the caller so it does not wait. 5658 try { 5659 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5660 } catch (RemoteException re) { 5661 /* best effort - ignore */ 5662 } 5663 } 5664 } 5665 5666 @Override 5667 public void performAccessibilityAction(long accessibilityNodeId, int action, 5668 Bundle arguments, int interactionId, 5669 IAccessibilityInteractionConnectionCallback callback, int flags, 5670 int interogatingPid, long interrogatingTid) { 5671 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5672 if (viewRootImpl != null && viewRootImpl.mView != null) { 5673 viewRootImpl.getAccessibilityInteractionController() 5674 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5675 interactionId, callback, flags, interogatingPid, interrogatingTid); 5676 } else { 5677 // We cannot make the call and notify the caller so it does not wait. 5678 try { 5679 callback.setPerformAccessibilityActionResult(false, interactionId); 5680 } catch (RemoteException re) { 5681 /* best effort - ignore */ 5682 } 5683 } 5684 } 5685 5686 @Override 5687 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5688 String viewId, int interactionId, 5689 IAccessibilityInteractionConnectionCallback callback, int flags, 5690 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5691 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5692 if (viewRootImpl != null && viewRootImpl.mView != null) { 5693 viewRootImpl.getAccessibilityInteractionController() 5694 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5695 viewId, interactionId, callback, flags, interrogatingPid, 5696 interrogatingTid, spec); 5697 } else { 5698 // We cannot make the call and notify the caller so it does not wait. 5699 try { 5700 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5701 } catch (RemoteException re) { 5702 /* best effort - ignore */ 5703 } 5704 } 5705 } 5706 5707 @Override 5708 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5709 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5710 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5711 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5712 if (viewRootImpl != null && viewRootImpl.mView != null) { 5713 viewRootImpl.getAccessibilityInteractionController() 5714 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5715 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5716 spec); 5717 } else { 5718 // We cannot make the call and notify the caller so it does not wait. 5719 try { 5720 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5721 } catch (RemoteException re) { 5722 /* best effort - ignore */ 5723 } 5724 } 5725 } 5726 5727 @Override 5728 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5729 IAccessibilityInteractionConnectionCallback callback, int flags, 5730 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5731 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5732 if (viewRootImpl != null && viewRootImpl.mView != null) { 5733 viewRootImpl.getAccessibilityInteractionController() 5734 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5735 flags, interrogatingPid, interrogatingTid, spec); 5736 } else { 5737 // We cannot make the call and notify the caller so it does not wait. 5738 try { 5739 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5740 } catch (RemoteException re) { 5741 /* best effort - ignore */ 5742 } 5743 } 5744 } 5745 5746 @Override 5747 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5748 IAccessibilityInteractionConnectionCallback callback, int flags, 5749 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5750 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5751 if (viewRootImpl != null && viewRootImpl.mView != null) { 5752 viewRootImpl.getAccessibilityInteractionController() 5753 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5754 callback, flags, interrogatingPid, interrogatingTid, spec); 5755 } else { 5756 // We cannot make the call and notify the caller so it does not wait. 5757 try { 5758 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5759 } catch (RemoteException re) { 5760 /* best effort - ignore */ 5761 } 5762 } 5763 } 5764 } 5765 5766 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5767 public View mSource; 5768 5769 public void run() { 5770 if (mSource != null) { 5771 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5772 mSource.resetAccessibilityStateChanged(); 5773 mSource = null; 5774 } 5775 } 5776 } 5777} 5778