ViewRootImpl.java revision ca3d655d20c13c71972a4475cec3b98efa7dbdd0
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 private static final boolean DEBUG_INPUT_PROCESSING = false || LOCAL_LOGV; 111 112 private static final boolean USE_RENDER_THREAD = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 130 131 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 132 static boolean sFirstDrawComplete = false; 133 134 static final ArrayList<ComponentCallbacks> sConfigCallbacks 135 = new ArrayList<ComponentCallbacks>(); 136 137 private static boolean sUseRenderThread = false; 138 private static boolean sRenderThreadQueried = false; 139 private static final Object[] sRenderThreadQueryLock = new Object[0]; 140 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 final String mBasePackageName; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 final SimulatedDpad mSimulatedDpad; 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 175 View mAccessibilityFocusedHost; 176 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 177 178 int mViewVisibility; 179 boolean mAppVisible = true; 180 int mOrigWindowType = -1; 181 182 // Set to true if the owner of this window is in the stopped state, 183 // so the window should no longer be active. 184 boolean mStopped = false; 185 186 boolean mLastInCompatMode = false; 187 188 SurfaceHolder.Callback2 mSurfaceHolderCallback; 189 BaseSurfaceHolder mSurfaceHolder; 190 boolean mIsCreating; 191 boolean mDrawingAllowed; 192 193 final Region mTransparentRegion; 194 final Region mPreviousTransparentRegion; 195 196 int mWidth; 197 int mHeight; 198 Rect mDirty; 199 final Rect mCurrentDirty = new Rect(); 200 final Rect mPreviousDirty = new Rect(); 201 boolean mIsAnimating; 202 203 CompatibilityInfo.Translator mTranslator; 204 205 final View.AttachInfo mAttachInfo; 206 InputChannel mInputChannel; 207 InputQueue.Callback mInputQueueCallback; 208 InputQueue mInputQueue; 209 FallbackEventHandler mFallbackEventHandler; 210 Choreographer mChoreographer; 211 212 final Rect mTempRect; // used in the transaction to not thrash the heap. 213 final Rect mVisRect; // used to retrieve visible rect of focused view. 214 215 boolean mTraversalScheduled; 216 int mTraversalBarrier; 217 boolean mWillDrawSoon; 218 /** Set to true while in performTraversals for detecting when die(true) is called from internal 219 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 220 boolean mIsInTraversal; 221 boolean mFitSystemWindowsRequested; 222 boolean mLayoutRequested; 223 boolean mFirst; 224 boolean mReportNextDraw; 225 boolean mFullRedrawNeeded; 226 boolean mNewSurfaceNeeded; 227 boolean mHasHadWindowFocus; 228 boolean mLastWasImTarget; 229 boolean mWindowsAnimating; 230 boolean mIsDrawing; 231 int mLastSystemUiVisibility; 232 int mClientWindowLayoutFlags; 233 boolean mLastOverscanRequested; 234 235 /** Event was not handled and is finished. 236 * @hide */ 237 public static final int EVENT_NOT_HANDLED = 0; 238 /** Event was handled and is finished. 239 * @hide */ 240 public static final int EVENT_HANDLED = 1; 241 /** Event is waiting on the IME. 242 * @hide */ 243 public static final int EVENT_PENDING_IME = 2; 244 /** Event requires post-IME dispatch. 245 * @hide */ 246 public static final int EVENT_POST_IME = 3; 247 248 // Pool of queued input events. 249 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 250 private QueuedInputEvent mQueuedInputEventPool; 251 private int mQueuedInputEventPoolSize; 252 253 /* Input event queue. 254 * Pending input events are input events waiting to be handled by the application. Current 255 * input events are input events which are being handled but are waiting on some action by the 256 * IME, even if they themselves may not need to be handled by the IME. 257 */ 258 QueuedInputEvent mPendingInputEventHead; 259 QueuedInputEvent mPendingInputEventTail; 260 int mPendingInputEventCount; 261 QueuedInputEvent mCurrentInputEventHead; 262 QueuedInputEvent mCurrentInputEventTail; 263 int mCurrentInputEventCount; 264 boolean mProcessInputEventsScheduled; 265 String mPendingInputEventQueueLengthCounterName = "pq"; 266 String mCurrentInputEventQueueLengthCounterName = "cq"; 267 268 boolean mWindowAttributesChanged = false; 269 int mWindowAttributesChangesFlag = 0; 270 271 // These can be accessed by any thread, must be protected with a lock. 272 // Surface can never be reassigned or cleared (use Surface.clear()). 273 private final Surface mSurface = new Surface(); 274 275 boolean mAdded; 276 boolean mAddedTouchMode; 277 278 final CompatibilityInfoHolder mCompatibilityInfo; 279 280 // These are accessed by multiple threads. 281 final Rect mWinFrame; // frame given by window manager. 282 283 final Rect mPendingOverscanInsets = new Rect(); 284 final Rect mPendingVisibleInsets = new Rect(); 285 final Rect mPendingContentInsets = new Rect(); 286 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 287 = new ViewTreeObserver.InternalInsetsInfo(); 288 289 final Rect mFitSystemWindowsInsets = new Rect(); 290 291 final Configuration mLastConfiguration = new Configuration(); 292 final Configuration mPendingConfiguration = new Configuration(); 293 294 boolean mScrollMayChange; 295 int mSoftInputMode; 296 WeakReference<View> mLastScrolledFocus; 297 int mScrollY; 298 int mCurScrollY; 299 Scroller mScroller; 300 HardwareLayer mResizeBuffer; 301 long mResizeBufferStartTime; 302 int mResizeBufferDuration; 303 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 304 private ArrayList<LayoutTransition> mPendingTransitions; 305 306 final ViewConfiguration mViewConfiguration; 307 308 /* Drag/drop */ 309 ClipDescription mDragDescription; 310 View mCurrentDragView; 311 volatile Object mLocalDragState; 312 final PointF mDragPoint = new PointF(); 313 final PointF mLastTouchPoint = new PointF(); 314 315 private boolean mProfileRendering; 316 private Choreographer.FrameCallback mRenderProfiler; 317 private boolean mRenderProfilingEnabled; 318 319 // Variables to track frames per second, enabled via DEBUG_FPS flag 320 private long mFpsStartTime = -1; 321 private long mFpsPrevTime = -1; 322 private int mFpsNumFrames; 323 324 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 325 326 /** 327 * see {@link #playSoundEffect(int)} 328 */ 329 AudioManager mAudioManager; 330 331 final AccessibilityManager mAccessibilityManager; 332 333 AccessibilityInteractionController mAccessibilityInteractionController; 334 335 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 336 337 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 338 339 HashSet<View> mTempHashSet; 340 341 private final int mDensity; 342 private final int mNoncompatDensity; 343 344 private boolean mInLayout = false; 345 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 346 boolean mHandlingLayoutInLayoutRequest = false; 347 348 private int mViewLayoutDirectionInitial; 349 350 /** 351 * Consistency verifier for debugging purposes. 352 */ 353 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 354 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 355 new InputEventConsistencyVerifier(this, 0) : null; 356 357 static final class SystemUiVisibilityInfo { 358 int seq; 359 int globalVisibility; 360 int localValue; 361 int localChanges; 362 } 363 364 public ViewRootImpl(Context context, Display display) { 365 super(); 366 367 if (MEASURE_LATENCY) { 368 if (lt == null) { 369 lt = new LatencyTimer(100, 1000); 370 } 371 } 372 373 // Initialize the statics when this class is first instantiated. This is 374 // done here instead of in the static block because Zygote does not 375 // allow the spawning of threads. 376 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 377 mDisplay = display; 378 mBasePackageName = context.getBasePackageName(); 379 380 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 381 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 382 383 mThread = Thread.currentThread(); 384 mLocation = new WindowLeaked(null); 385 mLocation.fillInStackTrace(); 386 mWidth = -1; 387 mHeight = -1; 388 mDirty = new Rect(); 389 mTempRect = new Rect(); 390 mVisRect = new Rect(); 391 mWinFrame = new Rect(); 392 mWindow = new W(this); 393 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 394 mInputMethodCallback = new InputMethodCallback(this); 395 mViewVisibility = View.GONE; 396 mTransparentRegion = new Region(); 397 mPreviousTransparentRegion = new Region(); 398 mFirst = true; // true for the first time the view is added 399 mAdded = false; 400 mAccessibilityManager = AccessibilityManager.getInstance(context); 401 mAccessibilityInteractionConnectionManager = 402 new AccessibilityInteractionConnectionManager(); 403 mAccessibilityManager.addAccessibilityStateChangeListener( 404 mAccessibilityInteractionConnectionManager); 405 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 406 mViewConfiguration = ViewConfiguration.get(context); 407 mDensity = context.getResources().getDisplayMetrics().densityDpi; 408 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 409 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 410 mChoreographer = Choreographer.getInstance(); 411 412 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 413 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 414 loadSystemProperties(); 415 mSimulatedDpad = new SimulatedDpad(context); 416 } 417 418 /** 419 * @return True if the application requests the use of a separate render thread, 420 * false otherwise 421 */ 422 private static boolean isRenderThreadRequested(Context context) { 423 if (USE_RENDER_THREAD) { 424 synchronized (sRenderThreadQueryLock) { 425 if (!sRenderThreadQueried) { 426 final PackageManager packageManager = context.getPackageManager(); 427 final String packageName = context.getApplicationInfo().packageName; 428 try { 429 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 430 PackageManager.GET_META_DATA); 431 if (applicationInfo.metaData != null) { 432 sUseRenderThread = applicationInfo.metaData.getBoolean( 433 "android.graphics.renderThread", false); 434 } 435 } catch (PackageManager.NameNotFoundException e) { 436 } finally { 437 sRenderThreadQueried = true; 438 } 439 } 440 return sUseRenderThread; 441 } 442 } else { 443 return false; 444 } 445 } 446 447 public static void addFirstDrawHandler(Runnable callback) { 448 synchronized (sFirstDrawHandlers) { 449 if (!sFirstDrawComplete) { 450 sFirstDrawHandlers.add(callback); 451 } 452 } 453 } 454 455 public static void addConfigCallback(ComponentCallbacks callback) { 456 synchronized (sConfigCallbacks) { 457 sConfigCallbacks.add(callback); 458 } 459 } 460 461 // FIXME for perf testing only 462 private boolean mProfile = false; 463 464 /** 465 * Call this to profile the next traversal call. 466 * FIXME for perf testing only. Remove eventually 467 */ 468 public void profile() { 469 mProfile = true; 470 } 471 472 /** 473 * Indicates whether we are in touch mode. Calling this method triggers an IPC 474 * call and should be avoided whenever possible. 475 * 476 * @return True, if the device is in touch mode, false otherwise. 477 * 478 * @hide 479 */ 480 static boolean isInTouchMode() { 481 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 482 if (windowSession != null) { 483 try { 484 return windowSession.getInTouchMode(); 485 } catch (RemoteException e) { 486 } 487 } 488 return false; 489 } 490 491 /** 492 * We have one child 493 */ 494 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 495 synchronized (this) { 496 if (mView == null) { 497 mView = view; 498 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 499 mFallbackEventHandler.setView(view); 500 mWindowAttributes.copyFrom(attrs); 501 if (mWindowAttributes.packageName == null) { 502 mWindowAttributes.packageName = mBasePackageName; 503 } 504 attrs = mWindowAttributes; 505 // Keep track of the actual window flags supplied by the client. 506 mClientWindowLayoutFlags = attrs.flags; 507 508 setAccessibilityFocus(null, null); 509 510 if (view instanceof RootViewSurfaceTaker) { 511 mSurfaceHolderCallback = 512 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 513 if (mSurfaceHolderCallback != null) { 514 mSurfaceHolder = new TakenSurfaceHolder(); 515 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 516 } 517 } 518 519 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 520 mTranslator = compatibilityInfo.getTranslator(); 521 522 // If the application owns the surface, don't enable hardware acceleration 523 if (mSurfaceHolder == null) { 524 enableHardwareAcceleration(mView.getContext(), attrs); 525 } 526 527 boolean restore = false; 528 if (mTranslator != null) { 529 mSurface.setCompatibilityTranslator(mTranslator); 530 restore = true; 531 attrs.backup(); 532 mTranslator.translateWindowLayout(attrs); 533 } 534 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 535 536 if (!compatibilityInfo.supportsScreen()) { 537 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 538 mLastInCompatMode = true; 539 } 540 541 mSoftInputMode = attrs.softInputMode; 542 mWindowAttributesChanged = true; 543 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 544 mAttachInfo.mRootView = view; 545 mAttachInfo.mScalingRequired = mTranslator != null; 546 mAttachInfo.mApplicationScale = 547 mTranslator == null ? 1.0f : mTranslator.applicationScale; 548 if (panelParentView != null) { 549 mAttachInfo.mPanelParentWindowToken 550 = panelParentView.getApplicationWindowToken(); 551 } 552 mAdded = true; 553 int res; /* = WindowManagerImpl.ADD_OKAY; */ 554 555 // Schedule the first layout -before- adding to the window 556 // manager, to make sure we do the relayout before receiving 557 // any other events from the system. 558 requestLayout(); 559 if ((mWindowAttributes.inputFeatures 560 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 561 mInputChannel = new InputChannel(); 562 } 563 try { 564 mOrigWindowType = mWindowAttributes.type; 565 mAttachInfo.mRecomputeGlobalAttributes = true; 566 collectViewAttributes(); 567 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 568 getHostVisibility(), mDisplay.getDisplayId(), 569 mAttachInfo.mContentInsets, mInputChannel); 570 } catch (RemoteException e) { 571 mAdded = false; 572 mView = null; 573 mAttachInfo.mRootView = null; 574 mInputChannel = null; 575 mFallbackEventHandler.setView(null); 576 unscheduleTraversals(); 577 setAccessibilityFocus(null, null); 578 throw new RuntimeException("Adding window failed", e); 579 } finally { 580 if (restore) { 581 attrs.restore(); 582 } 583 } 584 585 if (mTranslator != null) { 586 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 587 } 588 mPendingOverscanInsets.set(0, 0, 0, 0); 589 mPendingContentInsets.set(mAttachInfo.mContentInsets); 590 mPendingVisibleInsets.set(0, 0, 0, 0); 591 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 592 if (res < WindowManagerGlobal.ADD_OKAY) { 593 mAttachInfo.mRootView = null; 594 mAdded = false; 595 mFallbackEventHandler.setView(null); 596 unscheduleTraversals(); 597 setAccessibilityFocus(null, null); 598 switch (res) { 599 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 600 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 601 throw new WindowManager.BadTokenException( 602 "Unable to add window -- token " + attrs.token 603 + " is not valid; is your activity running?"); 604 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 605 throw new WindowManager.BadTokenException( 606 "Unable to add window -- token " + attrs.token 607 + " is not for an application"); 608 case WindowManagerGlobal.ADD_APP_EXITING: 609 throw new WindowManager.BadTokenException( 610 "Unable to add window -- app for token " + attrs.token 611 + " is exiting"); 612 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 613 throw new WindowManager.BadTokenException( 614 "Unable to add window -- window " + mWindow 615 + " has already been added"); 616 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 617 // Silently ignore -- we would have just removed it 618 // right away, anyway. 619 return; 620 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 621 throw new WindowManager.BadTokenException( 622 "Unable to add window " + mWindow + 623 " -- another window of this type already exists"); 624 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 625 throw new WindowManager.BadTokenException( 626 "Unable to add window " + mWindow + 627 " -- permission denied for this window type"); 628 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 629 throw new WindowManager.InvalidDisplayException( 630 "Unable to add window " + mWindow + 631 " -- the specified display can not be found"); 632 } 633 throw new RuntimeException( 634 "Unable to add window -- unknown error code " + res); 635 } 636 637 if (view instanceof RootViewSurfaceTaker) { 638 mInputQueueCallback = 639 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 640 } 641 if (mInputChannel != null) { 642 if (mInputQueueCallback != null) { 643 mInputQueue = new InputQueue(mInputChannel); 644 mInputQueueCallback.onInputQueueCreated(mInputQueue); 645 } else { 646 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 647 Looper.myLooper()); 648 } 649 } 650 651 view.assignParent(this); 652 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 653 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 654 655 if (mAccessibilityManager.isEnabled()) { 656 mAccessibilityInteractionConnectionManager.ensureConnection(); 657 } 658 659 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 660 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 661 } 662 663 mPendingInputEventQueueLengthCounterName = "pq:" + attrs.getTitle(); 664 mCurrentInputEventQueueLengthCounterName = "cq:" + attrs.getTitle(); 665 } 666 } 667 } 668 669 void destroyHardwareResources() { 670 if (mAttachInfo.mHardwareRenderer != null) { 671 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 672 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 673 } 674 mAttachInfo.mHardwareRenderer.destroy(false); 675 } 676 } 677 678 void terminateHardwareResources() { 679 if (mAttachInfo.mHardwareRenderer != null) { 680 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 681 mAttachInfo.mHardwareRenderer.destroy(false); 682 } 683 } 684 685 void destroyHardwareLayers() { 686 if (mThread != Thread.currentThread()) { 687 if (mAttachInfo.mHardwareRenderer != null && 688 mAttachInfo.mHardwareRenderer.isEnabled()) { 689 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 690 } 691 } else { 692 if (mAttachInfo.mHardwareRenderer != null && 693 mAttachInfo.mHardwareRenderer.isEnabled()) { 694 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 695 } 696 } 697 } 698 699 void pushHardwareLayerUpdate(HardwareLayer layer) { 700 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 701 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 702 } 703 } 704 705 public boolean attachFunctor(int functor) { 706 //noinspection SimplifiableIfStatement 707 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 708 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 709 } 710 return false; 711 } 712 713 public void detachFunctor(int functor) { 714 if (mAttachInfo.mHardwareRenderer != null) { 715 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 716 } 717 } 718 719 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 720 mAttachInfo.mHardwareAccelerated = false; 721 mAttachInfo.mHardwareAccelerationRequested = false; 722 723 // Don't enable hardware acceleration when the application is in compatibility mode 724 if (mTranslator != null) return; 725 726 // Try to enable hardware acceleration if requested 727 final boolean hardwareAccelerated = 728 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 729 730 if (hardwareAccelerated) { 731 if (!HardwareRenderer.isAvailable()) { 732 return; 733 } 734 735 // Persistent processes (including the system) should not do 736 // accelerated rendering on low-end devices. In that case, 737 // sRendererDisabled will be set. In addition, the system process 738 // itself should never do accelerated rendering. In that case, both 739 // sRendererDisabled and sSystemRendererDisabled are set. When 740 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 741 // can be used by code on the system process to escape that and enable 742 // HW accelerated drawing. (This is basically for the lock screen.) 743 744 final boolean fakeHwAccelerated = (attrs.privateFlags & 745 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 746 final boolean forceHwAccelerated = (attrs.privateFlags & 747 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 748 749 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 750 && forceHwAccelerated)) { 751 // Don't enable hardware acceleration when we're not on the main thread 752 if (!HardwareRenderer.sSystemRendererDisabled && 753 Looper.getMainLooper() != Looper.myLooper()) { 754 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 755 + "acceleration outside of the main thread, aborting"); 756 return; 757 } 758 759 final boolean renderThread = isRenderThreadRequested(context); 760 if (renderThread) { 761 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 762 } 763 764 if (mAttachInfo.mHardwareRenderer != null) { 765 mAttachInfo.mHardwareRenderer.destroy(true); 766 } 767 768 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 769 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 770 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 771 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 772 = mAttachInfo.mHardwareRenderer != null; 773 774 } else if (fakeHwAccelerated) { 775 // The window had wanted to use hardware acceleration, but this 776 // is not allowed in its process. By setting this flag, it can 777 // still render as if it was accelerated. This is basically for 778 // the preview windows the window manager shows for launching 779 // applications, so they will look more like the app being launched. 780 mAttachInfo.mHardwareAccelerationRequested = true; 781 } 782 } 783 } 784 785 public View getView() { 786 return mView; 787 } 788 789 final WindowLeaked getLocation() { 790 return mLocation; 791 } 792 793 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 794 synchronized (this) { 795 int oldSoftInputMode = mWindowAttributes.softInputMode; 796 // Keep track of the actual window flags supplied by the client. 797 mClientWindowLayoutFlags = attrs.flags; 798 // preserve compatible window flag if exists. 799 int compatibleWindowFlag = 800 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 801 // transfer over system UI visibility values as they carry current state. 802 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 803 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 804 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 805 if (mWindowAttributes.packageName == null) { 806 mWindowAttributes.packageName = mBasePackageName; 807 } 808 mWindowAttributes.flags |= compatibleWindowFlag; 809 810 applyKeepScreenOnFlag(mWindowAttributes); 811 812 if (newView) { 813 mSoftInputMode = attrs.softInputMode; 814 requestLayout(); 815 } 816 // Don't lose the mode we last auto-computed. 817 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 818 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 819 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 820 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 821 | (oldSoftInputMode 822 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 823 } 824 mWindowAttributesChanged = true; 825 scheduleTraversals(); 826 } 827 } 828 829 void handleAppVisibility(boolean visible) { 830 if (mAppVisible != visible) { 831 mAppVisible = visible; 832 scheduleTraversals(); 833 } 834 } 835 836 void handleGetNewSurface() { 837 mNewSurfaceNeeded = true; 838 mFullRedrawNeeded = true; 839 scheduleTraversals(); 840 } 841 842 void handleScreenStateChange(boolean on) { 843 if (on != mAttachInfo.mScreenOn) { 844 mAttachInfo.mScreenOn = on; 845 if (mView != null) { 846 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 847 } 848 if (on) { 849 mFullRedrawNeeded = true; 850 scheduleTraversals(); 851 } 852 } 853 } 854 855 @Override 856 public void requestFitSystemWindows() { 857 checkThread(); 858 mFitSystemWindowsRequested = true; 859 scheduleTraversals(); 860 } 861 862 @Override 863 public void requestLayout() { 864 if (!mHandlingLayoutInLayoutRequest) { 865 checkThread(); 866 mLayoutRequested = true; 867 scheduleTraversals(); 868 } 869 } 870 871 @Override 872 public boolean isLayoutRequested() { 873 return mLayoutRequested; 874 } 875 876 void invalidate() { 877 mDirty.set(0, 0, mWidth, mHeight); 878 scheduleTraversals(); 879 } 880 881 void invalidateWorld(View view) { 882 view.invalidate(); 883 if (view instanceof ViewGroup) { 884 ViewGroup parent = (ViewGroup) view; 885 for (int i = 0; i < parent.getChildCount(); i++) { 886 invalidateWorld(parent.getChildAt(i)); 887 } 888 } 889 } 890 891 @Override 892 public void invalidateChild(View child, Rect dirty) { 893 invalidateChildInParent(null, dirty); 894 } 895 896 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 897 checkThread(); 898 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 899 900 if (dirty == null) { 901 invalidate(); 902 return null; 903 } else if (dirty.isEmpty() && !mIsAnimating) { 904 return null; 905 } 906 907 if (mCurScrollY != 0 || mTranslator != null) { 908 mTempRect.set(dirty); 909 dirty = mTempRect; 910 if (mCurScrollY != 0) { 911 dirty.offset(0, -mCurScrollY); 912 } 913 if (mTranslator != null) { 914 mTranslator.translateRectInAppWindowToScreen(dirty); 915 } 916 if (mAttachInfo.mScalingRequired) { 917 dirty.inset(-1, -1); 918 } 919 } 920 921 final Rect localDirty = mDirty; 922 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 923 mAttachInfo.mSetIgnoreDirtyState = true; 924 mAttachInfo.mIgnoreDirtyState = true; 925 } 926 927 // Add the new dirty rect to the current one 928 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 929 // Intersect with the bounds of the window to skip 930 // updates that lie outside of the visible region 931 final float appScale = mAttachInfo.mApplicationScale; 932 final boolean intersected = localDirty.intersect(0, 0, 933 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 934 if (!intersected) { 935 localDirty.setEmpty(); 936 } 937 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 938 scheduleTraversals(); 939 } 940 941 return null; 942 } 943 944 void setStopped(boolean stopped) { 945 if (mStopped != stopped) { 946 mStopped = stopped; 947 if (!stopped) { 948 scheduleTraversals(); 949 } 950 } 951 } 952 953 public ViewParent getParent() { 954 return null; 955 } 956 957 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 958 if (child != mView) { 959 throw new RuntimeException("child is not mine, honest!"); 960 } 961 // Note: don't apply scroll offset, because we want to know its 962 // visibility in the virtual canvas being given to the view hierarchy. 963 return r.intersect(0, 0, mWidth, mHeight); 964 } 965 966 public void bringChildToFront(View child) { 967 } 968 969 int getHostVisibility() { 970 return mAppVisible ? mView.getVisibility() : View.GONE; 971 } 972 973 void disposeResizeBuffer() { 974 if (mResizeBuffer != null) { 975 mResizeBuffer.destroy(); 976 mResizeBuffer = null; 977 } 978 } 979 980 /** 981 * Add LayoutTransition to the list of transitions to be started in the next traversal. 982 * This list will be cleared after the transitions on the list are start()'ed. These 983 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 984 * happens during the layout phase of traversal, which we want to complete before any of the 985 * animations are started (because those animations may side-effect properties that layout 986 * depends upon, like the bounding rectangles of the affected views). So we add the transition 987 * to the list and it is started just prior to starting the drawing phase of traversal. 988 * 989 * @param transition The LayoutTransition to be started on the next traversal. 990 * 991 * @hide 992 */ 993 public void requestTransitionStart(LayoutTransition transition) { 994 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 995 if (mPendingTransitions == null) { 996 mPendingTransitions = new ArrayList<LayoutTransition>(); 997 } 998 mPendingTransitions.add(transition); 999 } 1000 } 1001 1002 void scheduleTraversals() { 1003 if (!mTraversalScheduled) { 1004 mTraversalScheduled = true; 1005 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 1006 mChoreographer.postCallback( 1007 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1008 scheduleConsumeBatchedInput(); 1009 } 1010 } 1011 1012 void unscheduleTraversals() { 1013 if (mTraversalScheduled) { 1014 mTraversalScheduled = false; 1015 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1016 mChoreographer.removeCallbacks( 1017 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1018 } 1019 } 1020 1021 void doTraversal() { 1022 if (mTraversalScheduled) { 1023 mTraversalScheduled = false; 1024 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1025 1026 if (mProfile) { 1027 Debug.startMethodTracing("ViewAncestor"); 1028 } 1029 1030 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1031 try { 1032 performTraversals(); 1033 } finally { 1034 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1035 } 1036 1037 if (mProfile) { 1038 Debug.stopMethodTracing(); 1039 mProfile = false; 1040 } 1041 } 1042 } 1043 1044 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1045 // Update window's global keep screen on flag: if a view has requested 1046 // that the screen be kept on, then it is always set; otherwise, it is 1047 // set to whatever the client last requested for the global state. 1048 if (mAttachInfo.mKeepScreenOn) { 1049 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1050 } else { 1051 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1052 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1053 } 1054 } 1055 1056 private boolean collectViewAttributes() { 1057 final View.AttachInfo attachInfo = mAttachInfo; 1058 if (attachInfo.mRecomputeGlobalAttributes) { 1059 //Log.i(TAG, "Computing view hierarchy attributes!"); 1060 attachInfo.mRecomputeGlobalAttributes = false; 1061 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1062 attachInfo.mKeepScreenOn = false; 1063 attachInfo.mSystemUiVisibility = 0; 1064 attachInfo.mHasSystemUiListeners = false; 1065 mView.dispatchCollectViewAttributes(attachInfo, 0); 1066 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1067 WindowManager.LayoutParams params = mWindowAttributes; 1068 if (attachInfo.mKeepScreenOn != oldScreenOn 1069 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1070 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1071 applyKeepScreenOnFlag(params); 1072 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1073 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1074 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1075 return true; 1076 } 1077 } 1078 return false; 1079 } 1080 1081 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1082 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1083 int childWidthMeasureSpec; 1084 int childHeightMeasureSpec; 1085 boolean windowSizeMayChange = false; 1086 1087 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1088 "Measuring " + host + " in display " + desiredWindowWidth 1089 + "x" + desiredWindowHeight + "..."); 1090 1091 boolean goodMeasure = false; 1092 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1093 // On large screens, we don't want to allow dialogs to just 1094 // stretch to fill the entire width of the screen to display 1095 // one line of text. First try doing the layout at a smaller 1096 // size to see if it will fit. 1097 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1098 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1099 int baseSize = 0; 1100 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1101 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1102 } 1103 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1104 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1105 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1106 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1107 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1108 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1109 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1110 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1111 goodMeasure = true; 1112 } else { 1113 // Didn't fit in that size... try expanding a bit. 1114 baseSize = (baseSize+desiredWindowWidth)/2; 1115 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1116 + baseSize); 1117 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1118 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1119 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1120 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1121 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1122 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1123 goodMeasure = true; 1124 } 1125 } 1126 } 1127 } 1128 1129 if (!goodMeasure) { 1130 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1131 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1132 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1133 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1134 windowSizeMayChange = true; 1135 } 1136 } 1137 1138 if (DBG) { 1139 System.out.println("======================================"); 1140 System.out.println("performTraversals -- after measure"); 1141 host.debug(); 1142 } 1143 1144 return windowSizeMayChange; 1145 } 1146 1147 private void performTraversals() { 1148 // cache mView since it is used so much below... 1149 final View host = mView; 1150 1151 if (DBG) { 1152 System.out.println("======================================"); 1153 System.out.println("performTraversals"); 1154 host.debug(); 1155 } 1156 1157 if (host == null || !mAdded) 1158 return; 1159 1160 mIsInTraversal = true; 1161 mWillDrawSoon = true; 1162 boolean windowSizeMayChange = false; 1163 boolean newSurface = false; 1164 boolean surfaceChanged = false; 1165 WindowManager.LayoutParams lp = mWindowAttributes; 1166 1167 int desiredWindowWidth; 1168 int desiredWindowHeight; 1169 1170 final View.AttachInfo attachInfo = mAttachInfo; 1171 1172 final int viewVisibility = getHostVisibility(); 1173 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1174 || mNewSurfaceNeeded; 1175 1176 WindowManager.LayoutParams params = null; 1177 if (mWindowAttributesChanged) { 1178 mWindowAttributesChanged = false; 1179 surfaceChanged = true; 1180 params = lp; 1181 } 1182 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1183 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1184 params = lp; 1185 mFullRedrawNeeded = true; 1186 mLayoutRequested = true; 1187 if (mLastInCompatMode) { 1188 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1189 mLastInCompatMode = false; 1190 } else { 1191 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1192 mLastInCompatMode = true; 1193 } 1194 } 1195 1196 mWindowAttributesChangesFlag = 0; 1197 1198 Rect frame = mWinFrame; 1199 if (mFirst) { 1200 mFullRedrawNeeded = true; 1201 mLayoutRequested = true; 1202 1203 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1204 // NOTE -- system code, won't try to do compat mode. 1205 Point size = new Point(); 1206 mDisplay.getRealSize(size); 1207 desiredWindowWidth = size.x; 1208 desiredWindowHeight = size.y; 1209 } else { 1210 DisplayMetrics packageMetrics = 1211 mView.getContext().getResources().getDisplayMetrics(); 1212 desiredWindowWidth = packageMetrics.widthPixels; 1213 desiredWindowHeight = packageMetrics.heightPixels; 1214 } 1215 1216 // For the very first time, tell the view hierarchy that it 1217 // is attached to the window. Note that at this point the surface 1218 // object is not initialized to its backing store, but soon it 1219 // will be (assuming the window is visible). 1220 attachInfo.mSurface = mSurface; 1221 // We used to use the following condition to choose 32 bits drawing caches: 1222 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1223 // However, windows are now always 32 bits by default, so choose 32 bits 1224 attachInfo.mUse32BitDrawingCache = true; 1225 attachInfo.mHasWindowFocus = false; 1226 attachInfo.mWindowVisibility = viewVisibility; 1227 attachInfo.mRecomputeGlobalAttributes = false; 1228 viewVisibilityChanged = false; 1229 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1230 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1231 // Set the layout direction if it has not been set before (inherit is the default) 1232 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1233 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1234 } 1235 host.dispatchAttachedToWindow(attachInfo, 0); 1236 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1237 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1238 host.fitSystemWindows(mFitSystemWindowsInsets); 1239 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1240 1241 } else { 1242 desiredWindowWidth = frame.width(); 1243 desiredWindowHeight = frame.height(); 1244 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1245 if (DEBUG_ORIENTATION) Log.v(TAG, 1246 "View " + host + " resized to: " + frame); 1247 mFullRedrawNeeded = true; 1248 mLayoutRequested = true; 1249 windowSizeMayChange = true; 1250 } 1251 } 1252 1253 if (viewVisibilityChanged) { 1254 attachInfo.mWindowVisibility = viewVisibility; 1255 host.dispatchWindowVisibilityChanged(viewVisibility); 1256 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1257 destroyHardwareResources(); 1258 } 1259 if (viewVisibility == View.GONE) { 1260 // After making a window gone, we will count it as being 1261 // shown for the first time the next time it gets focus. 1262 mHasHadWindowFocus = false; 1263 } 1264 } 1265 1266 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1267 getRunQueue().executeActions(attachInfo.mHandler); 1268 1269 boolean insetsChanged = false; 1270 1271 boolean layoutRequested = mLayoutRequested && !mStopped; 1272 if (layoutRequested) { 1273 1274 final Resources res = mView.getContext().getResources(); 1275 1276 if (mFirst) { 1277 // make sure touch mode code executes by setting cached value 1278 // to opposite of the added touch mode. 1279 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1280 ensureTouchModeLocally(mAddedTouchMode); 1281 } else { 1282 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1283 insetsChanged = true; 1284 } 1285 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1286 insetsChanged = true; 1287 } 1288 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1289 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1290 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1291 + mAttachInfo.mVisibleInsets); 1292 } 1293 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1294 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1295 windowSizeMayChange = true; 1296 1297 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1298 // NOTE -- system code, won't try to do compat mode. 1299 Point size = new Point(); 1300 mDisplay.getRealSize(size); 1301 desiredWindowWidth = size.x; 1302 desiredWindowHeight = size.y; 1303 } else { 1304 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1305 desiredWindowWidth = packageMetrics.widthPixels; 1306 desiredWindowHeight = packageMetrics.heightPixels; 1307 } 1308 } 1309 } 1310 1311 // Ask host how big it wants to be 1312 windowSizeMayChange |= measureHierarchy(host, lp, res, 1313 desiredWindowWidth, desiredWindowHeight); 1314 } 1315 1316 if (collectViewAttributes()) { 1317 params = lp; 1318 } 1319 if (attachInfo.mForceReportNewAttributes) { 1320 attachInfo.mForceReportNewAttributes = false; 1321 params = lp; 1322 } 1323 1324 if (mFirst || attachInfo.mViewVisibilityChanged) { 1325 attachInfo.mViewVisibilityChanged = false; 1326 int resizeMode = mSoftInputMode & 1327 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1328 // If we are in auto resize mode, then we need to determine 1329 // what mode to use now. 1330 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1331 final int N = attachInfo.mScrollContainers.size(); 1332 for (int i=0; i<N; i++) { 1333 if (attachInfo.mScrollContainers.get(i).isShown()) { 1334 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1335 } 1336 } 1337 if (resizeMode == 0) { 1338 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1339 } 1340 if ((lp.softInputMode & 1341 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1342 lp.softInputMode = (lp.softInputMode & 1343 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1344 resizeMode; 1345 params = lp; 1346 } 1347 } 1348 } 1349 1350 if (params != null) { 1351 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1352 if (!PixelFormat.formatHasAlpha(params.format)) { 1353 params.format = PixelFormat.TRANSLUCENT; 1354 } 1355 } 1356 mAttachInfo.mOverscanRequested = (params.flags 1357 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1358 } 1359 1360 if (mFitSystemWindowsRequested) { 1361 mFitSystemWindowsRequested = false; 1362 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1363 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1364 host.fitSystemWindows(mFitSystemWindowsInsets); 1365 if (mLayoutRequested) { 1366 // Short-circuit catching a new layout request here, so 1367 // we don't need to go through two layout passes when things 1368 // change due to fitting system windows, which can happen a lot. 1369 windowSizeMayChange |= measureHierarchy(host, lp, 1370 mView.getContext().getResources(), 1371 desiredWindowWidth, desiredWindowHeight); 1372 } 1373 } 1374 1375 if (layoutRequested) { 1376 // Clear this now, so that if anything requests a layout in the 1377 // rest of this function we will catch it and re-run a full 1378 // layout pass. 1379 mLayoutRequested = false; 1380 } 1381 1382 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1383 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1384 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1385 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1386 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1387 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1388 1389 final boolean computesInternalInsets = 1390 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1391 1392 boolean insetsPending = false; 1393 int relayoutResult = 0; 1394 1395 if (mFirst || windowShouldResize || insetsChanged || 1396 viewVisibilityChanged || params != null) { 1397 1398 if (viewVisibility == View.VISIBLE) { 1399 // If this window is giving internal insets to the window 1400 // manager, and it is being added or changing its visibility, 1401 // then we want to first give the window manager "fake" 1402 // insets to cause it to effectively ignore the content of 1403 // the window during layout. This avoids it briefly causing 1404 // other windows to resize/move based on the raw frame of the 1405 // window, waiting until we can finish laying out this window 1406 // and get back to the window manager with the ultimately 1407 // computed insets. 1408 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1409 } 1410 1411 if (mSurfaceHolder != null) { 1412 mSurfaceHolder.mSurfaceLock.lock(); 1413 mDrawingAllowed = true; 1414 } 1415 1416 boolean hwInitialized = false; 1417 boolean contentInsetsChanged = false; 1418 boolean hadSurface = mSurface.isValid(); 1419 1420 try { 1421 if (DEBUG_LAYOUT) { 1422 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1423 host.getMeasuredHeight() + ", params=" + params); 1424 } 1425 1426 final int surfaceGenerationId = mSurface.getGenerationId(); 1427 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1428 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 mCurrentDirty.union(mPreviousDirty); 2389 mPreviousDirty.set(dirty); 2390 dirty.setEmpty(); 2391 2392 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2393 animating ? null : mCurrentDirty)) { 2394 mPreviousDirty.set(0, 0, mWidth, mHeight); 2395 } 2396 } else { 2397 // If we get here with a disabled & requested hardware renderer, something went 2398 // wrong (an invalidate posted right before we destroyed the hardware surface 2399 // for instance) so we should just bail out. Locking the surface with software 2400 // rendering at this point would lock it forever and prevent hardware renderer 2401 // from doing its job when it comes back. 2402 // Before we request a new frame we must however attempt to reinitiliaze the 2403 // hardware renderer if it's in requested state. This would happen after an 2404 // eglTerminate() for instance. 2405 if (attachInfo.mHardwareRenderer != null && 2406 !attachInfo.mHardwareRenderer.isEnabled() && 2407 attachInfo.mHardwareRenderer.isRequested()) { 2408 2409 try { 2410 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2411 mHolder.getSurface()); 2412 } catch (Surface.OutOfResourcesException e) { 2413 handleOutOfResourcesException(e); 2414 return; 2415 } 2416 2417 mFullRedrawNeeded = true; 2418 scheduleTraversals(); 2419 return; 2420 } 2421 2422 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2423 return; 2424 } 2425 } 2426 } 2427 2428 if (animating) { 2429 mFullRedrawNeeded = true; 2430 scheduleTraversals(); 2431 } 2432 } 2433 2434 /** 2435 * @return true if drawing was succesfull, false if an error occurred 2436 */ 2437 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2438 boolean scalingRequired, Rect dirty) { 2439 2440 // Draw with software renderer. 2441 Canvas canvas; 2442 try { 2443 int left = dirty.left; 2444 int top = dirty.top; 2445 int right = dirty.right; 2446 int bottom = dirty.bottom; 2447 2448 canvas = mSurface.lockCanvas(dirty); 2449 2450 if (left != dirty.left || top != dirty.top || right != dirty.right || 2451 bottom != dirty.bottom) { 2452 attachInfo.mIgnoreDirtyState = true; 2453 } 2454 2455 // TODO: Do this in native 2456 canvas.setDensity(mDensity); 2457 } catch (Surface.OutOfResourcesException e) { 2458 handleOutOfResourcesException(e); 2459 return false; 2460 } catch (IllegalArgumentException e) { 2461 Log.e(TAG, "Could not lock surface", e); 2462 // Don't assume this is due to out of memory, it could be 2463 // something else, and if it is something else then we could 2464 // kill stuff (or ourself) for no reason. 2465 mLayoutRequested = true; // ask wm for a new surface next time. 2466 return false; 2467 } 2468 2469 try { 2470 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2471 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2472 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2473 //canvas.drawARGB(255, 255, 0, 0); 2474 } 2475 2476 // If this bitmap's format includes an alpha channel, we 2477 // need to clear it before drawing so that the child will 2478 // properly re-composite its drawing on a transparent 2479 // background. This automatically respects the clip/dirty region 2480 // or 2481 // If we are applying an offset, we need to clear the area 2482 // where the offset doesn't appear to avoid having garbage 2483 // left in the blank areas. 2484 if (!canvas.isOpaque() || yoff != 0) { 2485 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2486 } 2487 2488 dirty.setEmpty(); 2489 mIsAnimating = false; 2490 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2491 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2492 2493 if (DEBUG_DRAW) { 2494 Context cxt = mView.getContext(); 2495 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2496 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2497 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2498 } 2499 try { 2500 canvas.translate(0, -yoff); 2501 if (mTranslator != null) { 2502 mTranslator.translateCanvas(canvas); 2503 } 2504 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2505 attachInfo.mSetIgnoreDirtyState = false; 2506 2507 mView.draw(canvas); 2508 2509 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2510 } finally { 2511 if (!attachInfo.mSetIgnoreDirtyState) { 2512 // Only clear the flag if it was not set during the mView.draw() call 2513 attachInfo.mIgnoreDirtyState = false; 2514 } 2515 } 2516 } finally { 2517 try { 2518 surface.unlockCanvasAndPost(canvas); 2519 } catch (IllegalArgumentException e) { 2520 Log.e(TAG, "Could not unlock surface", e); 2521 mLayoutRequested = true; // ask wm for a new surface next time. 2522 //noinspection ReturnInsideFinallyBlock 2523 return false; 2524 } 2525 2526 if (LOCAL_LOGV) { 2527 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2528 } 2529 } 2530 return true; 2531 } 2532 2533 /** 2534 * We want to draw a highlight around the current accessibility focused. 2535 * Since adding a style for all possible view is not a viable option we 2536 * have this specialized drawing method. 2537 * 2538 * Note: We are doing this here to be able to draw the highlight for 2539 * virtual views in addition to real ones. 2540 * 2541 * @param canvas The canvas on which to draw. 2542 */ 2543 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2544 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2545 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2546 return; 2547 } 2548 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2549 return; 2550 } 2551 Drawable drawable = getAccessibilityFocusedDrawable(); 2552 if (drawable == null) { 2553 return; 2554 } 2555 AccessibilityNodeProvider provider = 2556 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2557 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2558 if (provider == null) { 2559 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2560 } else { 2561 if (mAccessibilityFocusedVirtualView == null) { 2562 return; 2563 } 2564 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2565 } 2566 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2567 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2568 drawable.setBounds(bounds); 2569 drawable.draw(canvas); 2570 } 2571 2572 private Drawable getAccessibilityFocusedDrawable() { 2573 if (mAttachInfo != null) { 2574 // Lazily load the accessibility focus drawable. 2575 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2576 TypedValue value = new TypedValue(); 2577 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2578 R.attr.accessibilityFocusedDrawable, value, true); 2579 if (resolved) { 2580 mAttachInfo.mAccessibilityFocusDrawable = 2581 mView.mContext.getResources().getDrawable(value.resourceId); 2582 } 2583 } 2584 return mAttachInfo.mAccessibilityFocusDrawable; 2585 } 2586 return null; 2587 } 2588 2589 void invalidateDisplayLists() { 2590 final ArrayList<DisplayList> displayLists = mDisplayLists; 2591 final int count = displayLists.size(); 2592 2593 for (int i = 0; i < count; i++) { 2594 final DisplayList displayList = displayLists.get(i); 2595 if (displayList.isDirty()) { 2596 displayList.clear(); 2597 } 2598 } 2599 2600 displayLists.clear(); 2601 } 2602 2603 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2604 final View.AttachInfo attachInfo = mAttachInfo; 2605 final Rect ci = attachInfo.mContentInsets; 2606 final Rect vi = attachInfo.mVisibleInsets; 2607 int scrollY = 0; 2608 boolean handled = false; 2609 2610 if (vi.left > ci.left || vi.top > ci.top 2611 || vi.right > ci.right || vi.bottom > ci.bottom) { 2612 // We'll assume that we aren't going to change the scroll 2613 // offset, since we want to avoid that unless it is actually 2614 // going to make the focus visible... otherwise we scroll 2615 // all over the place. 2616 scrollY = mScrollY; 2617 // We can be called for two different situations: during a draw, 2618 // to update the scroll position if the focus has changed (in which 2619 // case 'rectangle' is null), or in response to a 2620 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2621 // is non-null and we just want to scroll to whatever that 2622 // rectangle is). 2623 View focus = mView.findFocus(); 2624 if (focus == null) { 2625 return false; 2626 } 2627 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2628 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2629 // If the focus has changed, then ignore any requests to scroll 2630 // to a rectangle; first we want to make sure the entire focus 2631 // view is visible. 2632 rectangle = null; 2633 } 2634 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2635 + " rectangle=" + rectangle + " ci=" + ci 2636 + " vi=" + vi); 2637 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2638 // Optimization: if the focus hasn't changed since last 2639 // time, and no layout has happened, then just leave things 2640 // as they are. 2641 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2642 + mScrollY + " vi=" + vi.toShortString()); 2643 } else if (focus != null) { 2644 // We need to determine if the currently focused view is 2645 // within the visible part of the window and, if not, apply 2646 // a pan so it can be seen. 2647 mLastScrolledFocus = new WeakReference<View>(focus); 2648 mScrollMayChange = false; 2649 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2650 // Try to find the rectangle from the focus view. 2651 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2652 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2653 + mView.getWidth() + " h=" + mView.getHeight() 2654 + " ci=" + ci.toShortString() 2655 + " vi=" + vi.toShortString()); 2656 if (rectangle == null) { 2657 focus.getFocusedRect(mTempRect); 2658 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2659 + ": focusRect=" + mTempRect.toShortString()); 2660 if (mView instanceof ViewGroup) { 2661 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2662 focus, mTempRect); 2663 } 2664 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2665 "Focus in window: focusRect=" 2666 + mTempRect.toShortString() 2667 + " visRect=" + mVisRect.toShortString()); 2668 } else { 2669 mTempRect.set(rectangle); 2670 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2671 "Request scroll to rect: " 2672 + mTempRect.toShortString() 2673 + " visRect=" + mVisRect.toShortString()); 2674 } 2675 if (mTempRect.intersect(mVisRect)) { 2676 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2677 "Focus window visible rect: " 2678 + mTempRect.toShortString()); 2679 if (mTempRect.height() > 2680 (mView.getHeight()-vi.top-vi.bottom)) { 2681 // If the focus simply is not going to fit, then 2682 // best is probably just to leave things as-is. 2683 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2684 "Too tall; leaving scrollY=" + scrollY); 2685 } else if ((mTempRect.top-scrollY) < vi.top) { 2686 scrollY -= vi.top - (mTempRect.top-scrollY); 2687 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2688 "Top covered; scrollY=" + scrollY); 2689 } else if ((mTempRect.bottom-scrollY) 2690 > (mView.getHeight()-vi.bottom)) { 2691 scrollY += (mTempRect.bottom-scrollY) 2692 - (mView.getHeight()-vi.bottom); 2693 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2694 "Bottom covered; scrollY=" + scrollY); 2695 } 2696 handled = true; 2697 } 2698 } 2699 } 2700 } 2701 2702 if (scrollY != mScrollY) { 2703 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2704 + mScrollY + " , new=" + scrollY); 2705 if (!immediate && mResizeBuffer == null) { 2706 if (mScroller == null) { 2707 mScroller = new Scroller(mView.getContext()); 2708 } 2709 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2710 } else if (mScroller != null) { 2711 mScroller.abortAnimation(); 2712 } 2713 mScrollY = scrollY; 2714 } 2715 2716 return handled; 2717 } 2718 2719 /** 2720 * @hide 2721 */ 2722 public View getAccessibilityFocusedHost() { 2723 return mAccessibilityFocusedHost; 2724 } 2725 2726 /** 2727 * @hide 2728 */ 2729 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2730 return mAccessibilityFocusedVirtualView; 2731 } 2732 2733 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2734 // If we have a virtual view with accessibility focus we need 2735 // to clear the focus and invalidate the virtual view bounds. 2736 if (mAccessibilityFocusedVirtualView != null) { 2737 2738 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2739 View focusHost = mAccessibilityFocusedHost; 2740 focusHost.clearAccessibilityFocusNoCallbacks(); 2741 2742 // Wipe the state of the current accessibility focus since 2743 // the call into the provider to clear accessibility focus 2744 // will fire an accessibility event which will end up calling 2745 // this method and we want to have clean state when this 2746 // invocation happens. 2747 mAccessibilityFocusedHost = null; 2748 mAccessibilityFocusedVirtualView = null; 2749 2750 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2751 if (provider != null) { 2752 // Invalidate the area of the cleared accessibility focus. 2753 focusNode.getBoundsInParent(mTempRect); 2754 focusHost.invalidate(mTempRect); 2755 // Clear accessibility focus in the virtual node. 2756 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2757 focusNode.getSourceNodeId()); 2758 provider.performAction(virtualNodeId, 2759 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2760 } 2761 focusNode.recycle(); 2762 } 2763 if (mAccessibilityFocusedHost != null) { 2764 // Clear accessibility focus in the view. 2765 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2766 } 2767 2768 // Set the new focus host and node. 2769 mAccessibilityFocusedHost = view; 2770 mAccessibilityFocusedVirtualView = node; 2771 } 2772 2773 public void requestChildFocus(View child, View focused) { 2774 if (DEBUG_INPUT_RESIZE) { 2775 Log.v(TAG, "Request child focus: focus now " + focused); 2776 } 2777 checkThread(); 2778 scheduleTraversals(); 2779 } 2780 2781 public void clearChildFocus(View child) { 2782 if (DEBUG_INPUT_RESIZE) { 2783 Log.v(TAG, "Clearing child focus"); 2784 } 2785 checkThread(); 2786 scheduleTraversals(); 2787 } 2788 2789 @Override 2790 public ViewParent getParentForAccessibility() { 2791 return null; 2792 } 2793 2794 public void focusableViewAvailable(View v) { 2795 checkThread(); 2796 if (mView != null) { 2797 if (!mView.hasFocus()) { 2798 v.requestFocus(); 2799 } else { 2800 // the one case where will transfer focus away from the current one 2801 // is if the current view is a view group that prefers to give focus 2802 // to its children first AND the view is a descendant of it. 2803 View focused = mView.findFocus(); 2804 if (focused instanceof ViewGroup) { 2805 ViewGroup group = (ViewGroup) focused; 2806 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2807 && isViewDescendantOf(v, focused)) { 2808 v.requestFocus(); 2809 } 2810 } 2811 } 2812 } 2813 } 2814 2815 public void recomputeViewAttributes(View child) { 2816 checkThread(); 2817 if (mView == child) { 2818 mAttachInfo.mRecomputeGlobalAttributes = true; 2819 if (!mWillDrawSoon) { 2820 scheduleTraversals(); 2821 } 2822 } 2823 } 2824 2825 void dispatchDetachedFromWindow() { 2826 if (mView != null && mView.mAttachInfo != null) { 2827 if (mAttachInfo.mHardwareRenderer != null && 2828 mAttachInfo.mHardwareRenderer.isEnabled()) { 2829 mAttachInfo.mHardwareRenderer.validate(); 2830 } 2831 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2832 mView.dispatchDetachedFromWindow(); 2833 } 2834 2835 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2836 mAccessibilityManager.removeAccessibilityStateChangeListener( 2837 mAccessibilityInteractionConnectionManager); 2838 removeSendWindowContentChangedCallback(); 2839 2840 destroyHardwareRenderer(); 2841 2842 setAccessibilityFocus(null, null); 2843 2844 mView = null; 2845 mAttachInfo.mRootView = null; 2846 mAttachInfo.mSurface = null; 2847 2848 mSurface.release(); 2849 2850 if (mInputQueueCallback != null && mInputQueue != null) { 2851 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2852 mInputQueueCallback = null; 2853 mInputQueue = null; 2854 } else if (mInputEventReceiver != null) { 2855 mInputEventReceiver.dispose(); 2856 mInputEventReceiver = null; 2857 } 2858 try { 2859 mWindowSession.remove(mWindow); 2860 } catch (RemoteException e) { 2861 } 2862 2863 // Dispose the input channel after removing the window so the Window Manager 2864 // doesn't interpret the input channel being closed as an abnormal termination. 2865 if (mInputChannel != null) { 2866 mInputChannel.dispose(); 2867 mInputChannel = null; 2868 } 2869 2870 unscheduleTraversals(); 2871 } 2872 2873 void updateConfiguration(Configuration config, boolean force) { 2874 if (DEBUG_CONFIGURATION) Log.v(TAG, 2875 "Applying new config to window " 2876 + mWindowAttributes.getTitle() 2877 + ": " + config); 2878 2879 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2880 if (ci != null) { 2881 config = new Configuration(config); 2882 ci.applyToConfiguration(mNoncompatDensity, config); 2883 } 2884 2885 synchronized (sConfigCallbacks) { 2886 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2887 sConfigCallbacks.get(i).onConfigurationChanged(config); 2888 } 2889 } 2890 if (mView != null) { 2891 // At this point the resources have been updated to 2892 // have the most recent config, whatever that is. Use 2893 // the one in them which may be newer. 2894 config = mView.getResources().getConfiguration(); 2895 if (force || mLastConfiguration.diff(config) != 0) { 2896 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2897 final int currentLayoutDirection = config.getLayoutDirection(); 2898 mLastConfiguration.setTo(config); 2899 if (lastLayoutDirection != currentLayoutDirection && 2900 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2901 mView.setLayoutDirection(currentLayoutDirection); 2902 } 2903 mView.dispatchConfigurationChanged(config); 2904 } 2905 } 2906 } 2907 2908 /** 2909 * Return true if child is an ancestor of parent, (or equal to the parent). 2910 */ 2911 public static boolean isViewDescendantOf(View child, View parent) { 2912 if (child == parent) { 2913 return true; 2914 } 2915 2916 final ViewParent theParent = child.getParent(); 2917 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2918 } 2919 2920 private static void forceLayout(View view) { 2921 view.forceLayout(); 2922 if (view instanceof ViewGroup) { 2923 ViewGroup group = (ViewGroup) view; 2924 final int count = group.getChildCount(); 2925 for (int i = 0; i < count; i++) { 2926 forceLayout(group.getChildAt(i)); 2927 } 2928 } 2929 } 2930 2931 private final static int MSG_INVALIDATE = 1; 2932 private final static int MSG_INVALIDATE_RECT = 2; 2933 private final static int MSG_DIE = 3; 2934 private final static int MSG_RESIZED = 4; 2935 private final static int MSG_RESIZED_REPORT = 5; 2936 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2937 private final static int MSG_DISPATCH_KEY = 7; 2938 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2939 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2940 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2941 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2942 private final static int MSG_CHECK_FOCUS = 13; 2943 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2944 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2945 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2946 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2947 private final static int MSG_UPDATE_CONFIGURATION = 18; 2948 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2949 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2950 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2951 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2952 private final static int MSG_INVALIDATE_WORLD = 23; 2953 private final static int MSG_WINDOW_MOVED = 24; 2954 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 25; 2955 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 26; 2956 2957 final class ViewRootHandler extends Handler { 2958 @Override 2959 public String getMessageName(Message message) { 2960 switch (message.what) { 2961 case MSG_INVALIDATE: 2962 return "MSG_INVALIDATE"; 2963 case MSG_INVALIDATE_RECT: 2964 return "MSG_INVALIDATE_RECT"; 2965 case MSG_DIE: 2966 return "MSG_DIE"; 2967 case MSG_RESIZED: 2968 return "MSG_RESIZED"; 2969 case MSG_RESIZED_REPORT: 2970 return "MSG_RESIZED_REPORT"; 2971 case MSG_WINDOW_FOCUS_CHANGED: 2972 return "MSG_WINDOW_FOCUS_CHANGED"; 2973 case MSG_DISPATCH_KEY: 2974 return "MSG_DISPATCH_KEY"; 2975 case MSG_DISPATCH_APP_VISIBILITY: 2976 return "MSG_DISPATCH_APP_VISIBILITY"; 2977 case MSG_DISPATCH_GET_NEW_SURFACE: 2978 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2979 case MSG_DISPATCH_KEY_FROM_IME: 2980 return "MSG_DISPATCH_KEY_FROM_IME"; 2981 case MSG_FINISH_INPUT_CONNECTION: 2982 return "MSG_FINISH_INPUT_CONNECTION"; 2983 case MSG_CHECK_FOCUS: 2984 return "MSG_CHECK_FOCUS"; 2985 case MSG_CLOSE_SYSTEM_DIALOGS: 2986 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2987 case MSG_DISPATCH_DRAG_EVENT: 2988 return "MSG_DISPATCH_DRAG_EVENT"; 2989 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2990 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2991 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2992 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2993 case MSG_UPDATE_CONFIGURATION: 2994 return "MSG_UPDATE_CONFIGURATION"; 2995 case MSG_PROCESS_INPUT_EVENTS: 2996 return "MSG_PROCESS_INPUT_EVENTS"; 2997 case MSG_DISPATCH_SCREEN_STATE: 2998 return "MSG_DISPATCH_SCREEN_STATE"; 2999 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3000 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3001 case MSG_DISPATCH_DONE_ANIMATING: 3002 return "MSG_DISPATCH_DONE_ANIMATING"; 3003 case MSG_WINDOW_MOVED: 3004 return "MSG_WINDOW_MOVED"; 3005 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3006 return "MSG_ENQUEUE_X_AXIS_KEY_REPEAT"; 3007 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: 3008 return "MSG_ENQUEUE_Y_AXIS_KEY_REPEAT"; 3009 } 3010 return super.getMessageName(message); 3011 } 3012 3013 @Override 3014 public void handleMessage(Message msg) { 3015 switch (msg.what) { 3016 case MSG_INVALIDATE: 3017 ((View) msg.obj).invalidate(); 3018 break; 3019 case MSG_INVALIDATE_RECT: 3020 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3021 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3022 info.recycle(); 3023 break; 3024 case MSG_PROCESS_INPUT_EVENTS: 3025 mProcessInputEventsScheduled = false; 3026 doProcessInputEvents(); 3027 break; 3028 case MSG_DISPATCH_APP_VISIBILITY: 3029 handleAppVisibility(msg.arg1 != 0); 3030 break; 3031 case MSG_DISPATCH_GET_NEW_SURFACE: 3032 handleGetNewSurface(); 3033 break; 3034 case MSG_RESIZED: { 3035 // Recycled in the fall through... 3036 SomeArgs args = (SomeArgs) msg.obj; 3037 if (mWinFrame.equals(args.arg1) 3038 && mPendingOverscanInsets.equals(args.arg5) 3039 && mPendingContentInsets.equals(args.arg2) 3040 && mPendingVisibleInsets.equals(args.arg3) 3041 && args.arg4 == null) { 3042 break; 3043 } 3044 } // fall through... 3045 case MSG_RESIZED_REPORT: 3046 if (mAdded) { 3047 SomeArgs args = (SomeArgs) msg.obj; 3048 3049 Configuration config = (Configuration) args.arg4; 3050 if (config != null) { 3051 updateConfiguration(config, false); 3052 } 3053 3054 mWinFrame.set((Rect) args.arg1); 3055 mPendingOverscanInsets.set((Rect) args.arg5); 3056 mPendingContentInsets.set((Rect) args.arg2); 3057 mPendingVisibleInsets.set((Rect) args.arg3); 3058 3059 args.recycle(); 3060 3061 if (msg.what == MSG_RESIZED_REPORT) { 3062 mReportNextDraw = true; 3063 } 3064 3065 if (mView != null) { 3066 forceLayout(mView); 3067 } 3068 3069 requestLayout(); 3070 } 3071 break; 3072 case MSG_WINDOW_MOVED: 3073 if (mAdded) { 3074 final int w = mWinFrame.width(); 3075 final int h = mWinFrame.height(); 3076 final int l = msg.arg1; 3077 final int t = msg.arg2; 3078 mWinFrame.left = l; 3079 mWinFrame.right = l + w; 3080 mWinFrame.top = t; 3081 mWinFrame.bottom = t + h; 3082 3083 if (mView != null) { 3084 forceLayout(mView); 3085 } 3086 requestLayout(); 3087 } 3088 break; 3089 case MSG_WINDOW_FOCUS_CHANGED: { 3090 if (mAdded) { 3091 boolean hasWindowFocus = msg.arg1 != 0; 3092 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3093 3094 profileRendering(hasWindowFocus); 3095 3096 if (hasWindowFocus) { 3097 boolean inTouchMode = msg.arg2 != 0; 3098 ensureTouchModeLocally(inTouchMode); 3099 3100 if (mAttachInfo.mHardwareRenderer != null && 3101 mSurface != null && mSurface.isValid()) { 3102 mFullRedrawNeeded = true; 3103 try { 3104 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3105 mWidth, mHeight, mHolder.getSurface()); 3106 } catch (Surface.OutOfResourcesException e) { 3107 Log.e(TAG, "OutOfResourcesException locking surface", e); 3108 try { 3109 if (!mWindowSession.outOfMemory(mWindow)) { 3110 Slog.w(TAG, "No processes killed for memory; killing self"); 3111 Process.killProcess(Process.myPid()); 3112 } 3113 } catch (RemoteException ex) { 3114 } 3115 // Retry in a bit. 3116 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3117 return; 3118 } 3119 } 3120 } 3121 3122 mLastWasImTarget = WindowManager.LayoutParams 3123 .mayUseInputMethod(mWindowAttributes.flags); 3124 3125 InputMethodManager imm = InputMethodManager.peekInstance(); 3126 if (mView != null) { 3127 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3128 imm.startGettingWindowFocus(mView); 3129 } 3130 mAttachInfo.mKeyDispatchState.reset(); 3131 mView.dispatchWindowFocusChanged(hasWindowFocus); 3132 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3133 } 3134 3135 // Note: must be done after the focus change callbacks, 3136 // so all of the view state is set up correctly. 3137 if (hasWindowFocus) { 3138 if (imm != null && mLastWasImTarget) { 3139 imm.onWindowFocus(mView, mView.findFocus(), 3140 mWindowAttributes.softInputMode, 3141 !mHasHadWindowFocus, mWindowAttributes.flags); 3142 } 3143 // Clear the forward bit. We can just do this directly, since 3144 // the window manager doesn't care about it. 3145 mWindowAttributes.softInputMode &= 3146 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3147 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3148 .softInputMode &= 3149 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3150 mHasHadWindowFocus = true; 3151 } 3152 3153 setAccessibilityFocus(null, null); 3154 3155 if (mView != null && mAccessibilityManager.isEnabled()) { 3156 if (hasWindowFocus) { 3157 mView.sendAccessibilityEvent( 3158 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3159 } 3160 } 3161 } 3162 } break; 3163 case MSG_DIE: 3164 doDie(); 3165 break; 3166 case MSG_DISPATCH_KEY: { 3167 KeyEvent event = (KeyEvent)msg.obj; 3168 enqueueInputEvent(event, null, 0, true); 3169 } break; 3170 case MSG_DISPATCH_KEY_FROM_IME: { 3171 if (LOCAL_LOGV) Log.v( 3172 TAG, "Dispatching key " 3173 + msg.obj + " from IME to " + mView); 3174 KeyEvent event = (KeyEvent)msg.obj; 3175 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3176 // The IME is trying to say this event is from the 3177 // system! Bad bad bad! 3178 //noinspection UnusedAssignment 3179 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3180 } 3181 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3182 } break; 3183 case MSG_FINISH_INPUT_CONNECTION: { 3184 InputMethodManager imm = InputMethodManager.peekInstance(); 3185 if (imm != null) { 3186 imm.reportFinishInputConnection((InputConnection)msg.obj); 3187 } 3188 } break; 3189 case MSG_CHECK_FOCUS: { 3190 InputMethodManager imm = InputMethodManager.peekInstance(); 3191 if (imm != null) { 3192 imm.checkFocus(); 3193 } 3194 } break; 3195 case MSG_CLOSE_SYSTEM_DIALOGS: { 3196 if (mView != null) { 3197 mView.onCloseSystemDialogs((String)msg.obj); 3198 } 3199 } break; 3200 case MSG_DISPATCH_DRAG_EVENT: 3201 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3202 DragEvent event = (DragEvent)msg.obj; 3203 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3204 handleDragEvent(event); 3205 } break; 3206 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3207 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3208 } break; 3209 case MSG_UPDATE_CONFIGURATION: { 3210 Configuration config = (Configuration)msg.obj; 3211 if (config.isOtherSeqNewer(mLastConfiguration)) { 3212 config = mLastConfiguration; 3213 } 3214 updateConfiguration(config, false); 3215 } break; 3216 case MSG_DISPATCH_SCREEN_STATE: { 3217 if (mView != null) { 3218 handleScreenStateChange(msg.arg1 == 1); 3219 } 3220 } break; 3221 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3222 setAccessibilityFocus(null, null); 3223 } break; 3224 case MSG_DISPATCH_DONE_ANIMATING: { 3225 handleDispatchDoneAnimating(); 3226 } break; 3227 case MSG_INVALIDATE_WORLD: { 3228 if (mView != null) { 3229 invalidateWorld(mView); 3230 } 3231 } break; 3232 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 3233 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 3234 KeyEvent oldEvent = (KeyEvent)msg.obj; 3235 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, SystemClock.uptimeMillis(), 3236 oldEvent.getRepeatCount() + 1); 3237 if (mAttachInfo.mHasWindowFocus) { 3238 enqueueInputEvent(e); 3239 Message m = obtainMessage(msg.what, e); 3240 m.setAsynchronous(true); 3241 sendMessageDelayed(m, mViewConfiguration.getKeyRepeatDelay()); 3242 } 3243 } break; 3244 } 3245 } 3246 } 3247 3248 final ViewRootHandler mHandler = new ViewRootHandler(); 3249 3250 /** 3251 * Something in the current window tells us we need to change the touch mode. For 3252 * example, we are not in touch mode, and the user touches the screen. 3253 * 3254 * If the touch mode has changed, tell the window manager, and handle it locally. 3255 * 3256 * @param inTouchMode Whether we want to be in touch mode. 3257 * @return True if the touch mode changed and focus changed was changed as a result 3258 */ 3259 boolean ensureTouchMode(boolean inTouchMode) { 3260 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3261 + "touch mode is " + mAttachInfo.mInTouchMode); 3262 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3263 3264 // tell the window manager 3265 try { 3266 mWindowSession.setInTouchMode(inTouchMode); 3267 } catch (RemoteException e) { 3268 throw new RuntimeException(e); 3269 } 3270 3271 // handle the change 3272 return ensureTouchModeLocally(inTouchMode); 3273 } 3274 3275 /** 3276 * Ensure that the touch mode for this window is set, and if it is changing, 3277 * take the appropriate action. 3278 * @param inTouchMode Whether we want to be in touch mode. 3279 * @return True if the touch mode changed and focus changed was changed as a result 3280 */ 3281 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3282 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3283 + "touch mode is " + mAttachInfo.mInTouchMode); 3284 3285 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3286 3287 mAttachInfo.mInTouchMode = inTouchMode; 3288 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3289 3290 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3291 } 3292 3293 private boolean enterTouchMode() { 3294 if (mView != null) { 3295 if (mView.hasFocus()) { 3296 // note: not relying on mFocusedView here because this could 3297 // be when the window is first being added, and mFocused isn't 3298 // set yet. 3299 final View focused = mView.findFocus(); 3300 if (focused != null && !focused.isFocusableInTouchMode()) { 3301 final ViewGroup ancestorToTakeFocus = 3302 findAncestorToTakeFocusInTouchMode(focused); 3303 if (ancestorToTakeFocus != null) { 3304 // there is an ancestor that wants focus after its descendants that 3305 // is focusable in touch mode.. give it focus 3306 return ancestorToTakeFocus.requestFocus(); 3307 } else { 3308 // nothing appropriate to have focus in touch mode, clear it out 3309 focused.unFocus(); 3310 return true; 3311 } 3312 } 3313 } 3314 } 3315 return false; 3316 } 3317 3318 /** 3319 * Find an ancestor of focused that wants focus after its descendants and is 3320 * focusable in touch mode. 3321 * @param focused The currently focused view. 3322 * @return An appropriate view, or null if no such view exists. 3323 */ 3324 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3325 ViewParent parent = focused.getParent(); 3326 while (parent instanceof ViewGroup) { 3327 final ViewGroup vgParent = (ViewGroup) parent; 3328 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3329 && vgParent.isFocusableInTouchMode()) { 3330 return vgParent; 3331 } 3332 if (vgParent.isRootNamespace()) { 3333 return null; 3334 } else { 3335 parent = vgParent.getParent(); 3336 } 3337 } 3338 return null; 3339 } 3340 3341 private boolean leaveTouchMode() { 3342 if (mView != null) { 3343 if (mView.hasFocus()) { 3344 View focusedView = mView.findFocus(); 3345 if (!(focusedView instanceof ViewGroup)) { 3346 // some view has focus, let it keep it 3347 return false; 3348 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3349 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3350 // some view group has focus, and doesn't prefer its children 3351 // over itself for focus, so let them keep it. 3352 return false; 3353 } 3354 } 3355 3356 // find the best view to give focus to in this brave new non-touch-mode 3357 // world 3358 final View focused = focusSearch(null, View.FOCUS_DOWN); 3359 if (focused != null) { 3360 return focused.requestFocus(View.FOCUS_DOWN); 3361 } 3362 } 3363 return false; 3364 } 3365 3366 private int deliverInputEvent(QueuedInputEvent q) { 3367 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3368 try { 3369 if (q.mEvent instanceof KeyEvent) { 3370 return deliverKeyEvent(q); 3371 } else { 3372 final int source = q.mEvent.getSource(); 3373 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3374 return deliverPointerEvent(q); 3375 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3376 return deliverTrackballEvent(q); 3377 } else { 3378 return deliverGenericMotionEvent(q); 3379 } 3380 } 3381 } finally { 3382 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3383 } 3384 } 3385 3386 private int deliverInputEventPostIme(QueuedInputEvent q) { 3387 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3388 try { 3389 if (q.mEvent instanceof KeyEvent) { 3390 return deliverKeyEventPostIme(q); 3391 } else { 3392 final int source = q.mEvent.getSource(); 3393 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3394 return deliverTrackballEventPostIme(q); 3395 } else { 3396 return deliverGenericMotionEventPostIme(q); 3397 } 3398 } 3399 } finally { 3400 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3401 } 3402 } 3403 3404 private int deliverPointerEvent(QueuedInputEvent q) { 3405 final MotionEvent event = (MotionEvent)q.mEvent; 3406 final boolean isTouchEvent = event.isTouchEvent(); 3407 if (mInputEventConsistencyVerifier != null) { 3408 if (isTouchEvent) { 3409 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3410 } else { 3411 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3412 } 3413 } 3414 3415 // If there is no view, then the event will not be handled. 3416 if (mView == null || !mAdded) { 3417 return EVENT_NOT_HANDLED; 3418 } 3419 3420 // Translate the pointer event for compatibility, if needed. 3421 if (mTranslator != null) { 3422 mTranslator.translateEventInScreenToAppWindow(event); 3423 } 3424 3425 // Enter touch mode on down or scroll. 3426 final int action = event.getAction(); 3427 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3428 ensureTouchMode(true); 3429 } 3430 3431 // Offset the scroll position. 3432 if (mCurScrollY != 0) { 3433 event.offsetLocation(0, mCurScrollY); 3434 } 3435 if (MEASURE_LATENCY) { 3436 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3437 } 3438 3439 // Remember the touch position for possible drag-initiation. 3440 if (isTouchEvent) { 3441 mLastTouchPoint.x = event.getRawX(); 3442 mLastTouchPoint.y = event.getRawY(); 3443 } 3444 3445 // Dispatch touch to view hierarchy. 3446 boolean handled = mView.dispatchPointerEvent(event); 3447 if (MEASURE_LATENCY) { 3448 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3449 } 3450 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3451 } 3452 3453 private int deliverTrackballEvent(QueuedInputEvent q) { 3454 final MotionEvent event = (MotionEvent)q.mEvent; 3455 if (mInputEventConsistencyVerifier != null) { 3456 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3457 } 3458 3459 int result = EVENT_POST_IME; 3460 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3461 if (LOCAL_LOGV) 3462 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3463 3464 // Dispatch to the IME before propagating down the view hierarchy. 3465 result = dispatchImeInputEvent(q); 3466 } 3467 return result; 3468 } 3469 3470 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3471 final MotionEvent event = (MotionEvent) q.mEvent; 3472 3473 // If there is no view, then the event will not be handled. 3474 if (mView == null || !mAdded) { 3475 return EVENT_NOT_HANDLED; 3476 } 3477 3478 // Deliver the trackball event to the view. 3479 if (mView.dispatchTrackballEvent(event)) { 3480 // If we reach this, we delivered a trackball event to mView and 3481 // mView consumed it. Because we will not translate the trackball 3482 // event into a key event, touch mode will not exit, so we exit 3483 // touch mode here. 3484 ensureTouchMode(false); 3485 mLastTrackballTime = Integer.MIN_VALUE; 3486 return EVENT_HANDLED; 3487 } 3488 3489 // Translate the trackball event into DPAD keys and try to deliver those. 3490 final TrackballAxis x = mTrackballAxisX; 3491 final TrackballAxis y = mTrackballAxisY; 3492 3493 long curTime = SystemClock.uptimeMillis(); 3494 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3495 // It has been too long since the last movement, 3496 // so restart at the beginning. 3497 x.reset(0); 3498 y.reset(0); 3499 mLastTrackballTime = curTime; 3500 } 3501 3502 final int action = event.getAction(); 3503 final int metaState = event.getMetaState(); 3504 switch (action) { 3505 case MotionEvent.ACTION_DOWN: 3506 x.reset(2); 3507 y.reset(2); 3508 enqueueInputEvent(new KeyEvent(curTime, curTime, 3509 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3510 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3511 InputDevice.SOURCE_KEYBOARD)); 3512 break; 3513 case MotionEvent.ACTION_UP: 3514 x.reset(2); 3515 y.reset(2); 3516 enqueueInputEvent(new KeyEvent(curTime, curTime, 3517 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3518 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3519 InputDevice.SOURCE_KEYBOARD)); 3520 break; 3521 } 3522 3523 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3524 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3525 + " move=" + event.getX() 3526 + " / Y=" + y.position + " step=" 3527 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3528 + " move=" + event.getY()); 3529 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3530 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3531 3532 // Generate DPAD events based on the trackball movement. 3533 // We pick the axis that has moved the most as the direction of 3534 // the DPAD. When we generate DPAD events for one axis, then the 3535 // other axis is reset -- we don't want to perform DPAD jumps due 3536 // to slight movements in the trackball when making major movements 3537 // along the other axis. 3538 int keycode = 0; 3539 int movement = 0; 3540 float accel = 1; 3541 if (xOff > yOff) { 3542 movement = x.generate((2/event.getXPrecision())); 3543 if (movement != 0) { 3544 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3545 : KeyEvent.KEYCODE_DPAD_LEFT; 3546 accel = x.acceleration; 3547 y.reset(2); 3548 } 3549 } else if (yOff > 0) { 3550 movement = y.generate((2/event.getYPrecision())); 3551 if (movement != 0) { 3552 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3553 : KeyEvent.KEYCODE_DPAD_UP; 3554 accel = y.acceleration; 3555 x.reset(2); 3556 } 3557 } 3558 3559 if (keycode != 0) { 3560 if (movement < 0) movement = -movement; 3561 int accelMovement = (int)(movement * accel); 3562 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3563 + " accelMovement=" + accelMovement 3564 + " accel=" + accel); 3565 if (accelMovement > movement) { 3566 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3567 + keycode); 3568 movement--; 3569 int repeatCount = accelMovement - movement; 3570 enqueueInputEvent(new KeyEvent(curTime, curTime, 3571 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3572 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3573 InputDevice.SOURCE_KEYBOARD)); 3574 } 3575 while (movement > 0) { 3576 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 3577 + keycode); 3578 movement--; 3579 curTime = SystemClock.uptimeMillis(); 3580 enqueueInputEvent(new KeyEvent(curTime, curTime, 3581 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3582 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3583 InputDevice.SOURCE_KEYBOARD)); 3584 enqueueInputEvent(new KeyEvent(curTime, curTime, 3585 KeyEvent.ACTION_UP, keycode, 0, metaState, 3586 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3587 InputDevice.SOURCE_KEYBOARD)); 3588 } 3589 mLastTrackballTime = curTime; 3590 } 3591 3592 // Unfortunately we can't tell whether the application consumed the keys, so 3593 // we always consider the trackball event handled. 3594 return EVENT_HANDLED; 3595 } 3596 3597 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3598 final MotionEvent event = (MotionEvent)q.mEvent; 3599 if (mInputEventConsistencyVerifier != null) { 3600 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3601 } 3602 3603 int result = EVENT_POST_IME; 3604 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3605 if (LOCAL_LOGV) 3606 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3607 3608 // Dispatch to the IME before propagating down the view hierarchy. 3609 result = dispatchImeInputEvent(q); 3610 } 3611 return result; 3612 } 3613 3614 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3615 final MotionEvent event = (MotionEvent) q.mEvent; 3616 final int source = event.getSource(); 3617 final boolean isJoystick = event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK); 3618 final boolean isTouchNavigation = event.isFromSource(InputDevice.SOURCE_TOUCH_NAVIGATION); 3619 3620 // If there is no view, then the event will not be handled. 3621 if (mView == null || !mAdded) { 3622 if (isJoystick) { 3623 updateJoystickDirection(event, false); 3624 } else if (isTouchNavigation) { 3625 mSimulatedDpad.updateTouchNavigation(this, event, false); 3626 } 3627 return EVENT_NOT_HANDLED; 3628 } 3629 3630 // Deliver the event to the view. 3631 if (mView.dispatchGenericMotionEvent(event)) { 3632 if (isJoystick) { 3633 updateJoystickDirection(event, false); 3634 } else if (isTouchNavigation) { 3635 mSimulatedDpad.updateTouchNavigation(this, event, false); 3636 } 3637 return EVENT_HANDLED; 3638 } 3639 3640 if (isJoystick) { 3641 // Translate the joystick event into DPAD keys and try to deliver 3642 // those. 3643 updateJoystickDirection(event, true); 3644 return EVENT_HANDLED; 3645 } 3646 if (isTouchNavigation) { 3647 mSimulatedDpad.updateTouchNavigation(this, event, true); 3648 return EVENT_HANDLED; 3649 } 3650 return EVENT_NOT_HANDLED; 3651 } 3652 3653 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3654 final long time = event.getEventTime(); 3655 final int metaState = event.getMetaState(); 3656 final int deviceId = event.getDeviceId(); 3657 final int source = event.getSource(); 3658 3659 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3660 if (xDirection == 0) { 3661 xDirection = joystickAxisValueToDirection(event.getX()); 3662 } 3663 3664 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3665 if (yDirection == 0) { 3666 yDirection = joystickAxisValueToDirection(event.getY()); 3667 } 3668 3669 if (xDirection != mLastJoystickXDirection) { 3670 if (mLastJoystickXKeyCode != 0) { 3671 mHandler.removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 3672 enqueueInputEvent(new KeyEvent(time, time, 3673 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3674 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3675 mLastJoystickXKeyCode = 0; 3676 } 3677 3678 mLastJoystickXDirection = xDirection; 3679 3680 if (xDirection != 0 && synthesizeNewKeys) { 3681 mLastJoystickXKeyCode = xDirection > 0 3682 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3683 final KeyEvent e = new KeyEvent(time, time, 3684 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3685 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3686 enqueueInputEvent(e); 3687 Message m = mHandler.obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 3688 m.setAsynchronous(true); 3689 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3690 } 3691 } 3692 3693 if (yDirection != mLastJoystickYDirection) { 3694 if (mLastJoystickYKeyCode != 0) { 3695 mHandler.removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 3696 enqueueInputEvent(new KeyEvent(time, time, 3697 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3698 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3699 mLastJoystickYKeyCode = 0; 3700 } 3701 3702 mLastJoystickYDirection = yDirection; 3703 3704 if (yDirection != 0 && synthesizeNewKeys) { 3705 mLastJoystickYKeyCode = yDirection > 0 3706 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3707 final KeyEvent e = new KeyEvent(time, time, 3708 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3709 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 3710 enqueueInputEvent(e); 3711 Message m = mHandler.obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 3712 m.setAsynchronous(true); 3713 mHandler.sendMessageDelayed(m, mViewConfiguration.getKeyRepeatTimeout()); 3714 } 3715 } 3716 } 3717 3718 private static int joystickAxisValueToDirection(float value) { 3719 if (value >= 0.5f) { 3720 return 1; 3721 } else if (value <= -0.5f) { 3722 return -1; 3723 } else { 3724 return 0; 3725 } 3726 } 3727 3728 /** 3729 * Returns true if the key is used for keyboard navigation. 3730 * @param keyEvent The key event. 3731 * @return True if the key is used for keyboard navigation. 3732 */ 3733 private static boolean isNavigationKey(KeyEvent keyEvent) { 3734 switch (keyEvent.getKeyCode()) { 3735 case KeyEvent.KEYCODE_DPAD_LEFT: 3736 case KeyEvent.KEYCODE_DPAD_RIGHT: 3737 case KeyEvent.KEYCODE_DPAD_UP: 3738 case KeyEvent.KEYCODE_DPAD_DOWN: 3739 case KeyEvent.KEYCODE_DPAD_CENTER: 3740 case KeyEvent.KEYCODE_PAGE_UP: 3741 case KeyEvent.KEYCODE_PAGE_DOWN: 3742 case KeyEvent.KEYCODE_MOVE_HOME: 3743 case KeyEvent.KEYCODE_MOVE_END: 3744 case KeyEvent.KEYCODE_TAB: 3745 case KeyEvent.KEYCODE_SPACE: 3746 case KeyEvent.KEYCODE_ENTER: 3747 return true; 3748 } 3749 return false; 3750 } 3751 3752 /** 3753 * Returns true if the key is used for typing. 3754 * @param keyEvent The key event. 3755 * @return True if the key is used for typing. 3756 */ 3757 private static boolean isTypingKey(KeyEvent keyEvent) { 3758 return keyEvent.getUnicodeChar() > 0; 3759 } 3760 3761 /** 3762 * See if the key event means we should leave touch mode (and leave touch mode if so). 3763 * @param event The key event. 3764 * @return Whether this key event should be consumed (meaning the act of 3765 * leaving touch mode alone is considered the event). 3766 */ 3767 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3768 // Only relevant in touch mode. 3769 if (!mAttachInfo.mInTouchMode) { 3770 return false; 3771 } 3772 3773 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3774 final int action = event.getAction(); 3775 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3776 return false; 3777 } 3778 3779 // Don't leave touch mode if the IME told us not to. 3780 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3781 return false; 3782 } 3783 3784 // If the key can be used for keyboard navigation then leave touch mode 3785 // and select a focused view if needed (in ensureTouchMode). 3786 // When a new focused view is selected, we consume the navigation key because 3787 // navigation doesn't make much sense unless a view already has focus so 3788 // the key's purpose is to set focus. 3789 if (isNavigationKey(event)) { 3790 return ensureTouchMode(false); 3791 } 3792 3793 // If the key can be used for typing then leave touch mode 3794 // and select a focused view if needed (in ensureTouchMode). 3795 // Always allow the view to process the typing key. 3796 if (isTypingKey(event)) { 3797 ensureTouchMode(false); 3798 return false; 3799 } 3800 3801 return false; 3802 } 3803 3804 private int deliverKeyEvent(QueuedInputEvent q) { 3805 final KeyEvent event = (KeyEvent)q.mEvent; 3806 if (mInputEventConsistencyVerifier != null) { 3807 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3808 } 3809 3810 int result = EVENT_POST_IME; 3811 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3812 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3813 3814 // Perform predispatching before the IME. 3815 if (mView.dispatchKeyEventPreIme(event)) { 3816 return EVENT_HANDLED; 3817 } 3818 3819 // Dispatch to the IME before propagating down the view hierarchy. 3820 result = dispatchImeInputEvent(q); 3821 } 3822 return result; 3823 } 3824 3825 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3826 final KeyEvent event = (KeyEvent)q.mEvent; 3827 3828 // If the view went away, then the event will not be handled. 3829 if (mView == null || !mAdded) { 3830 return EVENT_NOT_HANDLED; 3831 } 3832 3833 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3834 if (checkForLeavingTouchModeAndConsume(event)) { 3835 return EVENT_HANDLED; 3836 } 3837 3838 // Make sure the fallback event policy sees all keys that will be delivered to the 3839 // view hierarchy. 3840 mFallbackEventHandler.preDispatchKeyEvent(event); 3841 3842 // Deliver the key to the view hierarchy. 3843 if (mView.dispatchKeyEvent(event)) { 3844 return EVENT_HANDLED; 3845 } 3846 3847 // If the Control modifier is held, try to interpret the key as a shortcut. 3848 if (event.getAction() == KeyEvent.ACTION_DOWN 3849 && event.isCtrlPressed() 3850 && event.getRepeatCount() == 0 3851 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3852 if (mView.dispatchKeyShortcutEvent(event)) { 3853 return EVENT_HANDLED; 3854 } 3855 } 3856 3857 // Apply the fallback event policy. 3858 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3859 return EVENT_HANDLED; 3860 } 3861 3862 // Handle automatic focus changes. 3863 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3864 int direction = 0; 3865 switch (event.getKeyCode()) { 3866 case KeyEvent.KEYCODE_DPAD_LEFT: 3867 if (event.hasNoModifiers()) { 3868 direction = View.FOCUS_LEFT; 3869 } 3870 break; 3871 case KeyEvent.KEYCODE_DPAD_RIGHT: 3872 if (event.hasNoModifiers()) { 3873 direction = View.FOCUS_RIGHT; 3874 } 3875 break; 3876 case KeyEvent.KEYCODE_DPAD_UP: 3877 if (event.hasNoModifiers()) { 3878 direction = View.FOCUS_UP; 3879 } 3880 break; 3881 case KeyEvent.KEYCODE_DPAD_DOWN: 3882 if (event.hasNoModifiers()) { 3883 direction = View.FOCUS_DOWN; 3884 } 3885 break; 3886 case KeyEvent.KEYCODE_TAB: 3887 if (event.hasNoModifiers()) { 3888 direction = View.FOCUS_FORWARD; 3889 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3890 direction = View.FOCUS_BACKWARD; 3891 } 3892 break; 3893 } 3894 if (direction != 0) { 3895 View focused = mView.findFocus(); 3896 if (focused != null) { 3897 View v = focused.focusSearch(direction); 3898 if (v != null && v != focused) { 3899 // do the math the get the interesting rect 3900 // of previous focused into the coord system of 3901 // newly focused view 3902 focused.getFocusedRect(mTempRect); 3903 if (mView instanceof ViewGroup) { 3904 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3905 focused, mTempRect); 3906 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3907 v, mTempRect); 3908 } 3909 if (v.requestFocus(direction, mTempRect)) { 3910 playSoundEffect(SoundEffectConstants 3911 .getContantForFocusDirection(direction)); 3912 return EVENT_HANDLED; 3913 } 3914 } 3915 3916 // Give the focused view a last chance to handle the dpad key. 3917 if (mView.dispatchUnhandledMove(focused, direction)) { 3918 return EVENT_HANDLED; 3919 } 3920 } else { 3921 // find the best view to give focus to in this non-touch-mode with no-focus 3922 View v = focusSearch(null, direction); 3923 if (v != null && v.requestFocus(direction)) { 3924 return EVENT_HANDLED; 3925 } 3926 } 3927 } 3928 } 3929 3930 // Key was unhandled. 3931 return EVENT_NOT_HANDLED; 3932 } 3933 3934 /* drag/drop */ 3935 void setLocalDragState(Object obj) { 3936 mLocalDragState = obj; 3937 } 3938 3939 private void handleDragEvent(DragEvent event) { 3940 // From the root, only drag start/end/location are dispatched. entered/exited 3941 // are determined and dispatched by the viewgroup hierarchy, who then report 3942 // that back here for ultimate reporting back to the framework. 3943 if (mView != null && mAdded) { 3944 final int what = event.mAction; 3945 3946 if (what == DragEvent.ACTION_DRAG_EXITED) { 3947 // A direct EXITED event means that the window manager knows we've just crossed 3948 // a window boundary, so the current drag target within this one must have 3949 // just been exited. Send it the usual notifications and then we're done 3950 // for now. 3951 mView.dispatchDragEvent(event); 3952 } else { 3953 // Cache the drag description when the operation starts, then fill it in 3954 // on subsequent calls as a convenience 3955 if (what == DragEvent.ACTION_DRAG_STARTED) { 3956 mCurrentDragView = null; // Start the current-recipient tracking 3957 mDragDescription = event.mClipDescription; 3958 } else { 3959 event.mClipDescription = mDragDescription; 3960 } 3961 3962 // For events with a [screen] location, translate into window coordinates 3963 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3964 mDragPoint.set(event.mX, event.mY); 3965 if (mTranslator != null) { 3966 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3967 } 3968 3969 if (mCurScrollY != 0) { 3970 mDragPoint.offset(0, mCurScrollY); 3971 } 3972 3973 event.mX = mDragPoint.x; 3974 event.mY = mDragPoint.y; 3975 } 3976 3977 // Remember who the current drag target is pre-dispatch 3978 final View prevDragView = mCurrentDragView; 3979 3980 // Now dispatch the drag/drop event 3981 boolean result = mView.dispatchDragEvent(event); 3982 3983 // If we changed apparent drag target, tell the OS about it 3984 if (prevDragView != mCurrentDragView) { 3985 try { 3986 if (prevDragView != null) { 3987 mWindowSession.dragRecipientExited(mWindow); 3988 } 3989 if (mCurrentDragView != null) { 3990 mWindowSession.dragRecipientEntered(mWindow); 3991 } 3992 } catch (RemoteException e) { 3993 Slog.e(TAG, "Unable to note drag target change"); 3994 } 3995 } 3996 3997 // Report the drop result when we're done 3998 if (what == DragEvent.ACTION_DROP) { 3999 mDragDescription = null; 4000 try { 4001 Log.i(TAG, "Reporting drop result: " + result); 4002 mWindowSession.reportDropResult(mWindow, result); 4003 } catch (RemoteException e) { 4004 Log.e(TAG, "Unable to report drop result"); 4005 } 4006 } 4007 4008 // When the drag operation ends, release any local state object 4009 // that may have been in use 4010 if (what == DragEvent.ACTION_DRAG_ENDED) { 4011 setLocalDragState(null); 4012 } 4013 } 4014 } 4015 event.recycle(); 4016 } 4017 4018 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4019 if (mSeq != args.seq) { 4020 // The sequence has changed, so we need to update our value and make 4021 // sure to do a traversal afterward so the window manager is given our 4022 // most recent data. 4023 mSeq = args.seq; 4024 mAttachInfo.mForceReportNewAttributes = true; 4025 scheduleTraversals(); 4026 } 4027 if (mView == null) return; 4028 if (args.localChanges != 0) { 4029 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4030 } 4031 if (mAttachInfo != null) { 4032 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4033 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4034 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4035 mView.dispatchSystemUiVisibilityChanged(visibility); 4036 } 4037 } 4038 } 4039 4040 public void handleDispatchDoneAnimating() { 4041 if (mWindowsAnimating) { 4042 mWindowsAnimating = false; 4043 if (!mDirty.isEmpty() || mIsAnimating) { 4044 scheduleTraversals(); 4045 } 4046 } 4047 } 4048 4049 public void getLastTouchPoint(Point outLocation) { 4050 outLocation.x = (int) mLastTouchPoint.x; 4051 outLocation.y = (int) mLastTouchPoint.y; 4052 } 4053 4054 public void setDragFocus(View newDragTarget) { 4055 if (mCurrentDragView != newDragTarget) { 4056 mCurrentDragView = newDragTarget; 4057 } 4058 } 4059 4060 private AudioManager getAudioManager() { 4061 if (mView == null) { 4062 throw new IllegalStateException("getAudioManager called when there is no mView"); 4063 } 4064 if (mAudioManager == null) { 4065 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4066 } 4067 return mAudioManager; 4068 } 4069 4070 public AccessibilityInteractionController getAccessibilityInteractionController() { 4071 if (mView == null) { 4072 throw new IllegalStateException("getAccessibilityInteractionController" 4073 + " called when there is no mView"); 4074 } 4075 if (mAccessibilityInteractionController == null) { 4076 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4077 } 4078 return mAccessibilityInteractionController; 4079 } 4080 4081 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4082 boolean insetsPending) throws RemoteException { 4083 4084 float appScale = mAttachInfo.mApplicationScale; 4085 boolean restore = false; 4086 if (params != null && mTranslator != null) { 4087 restore = true; 4088 params.backup(); 4089 mTranslator.translateWindowLayout(params); 4090 } 4091 if (params != null) { 4092 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4093 } 4094 mPendingConfiguration.seq = 0; 4095 //Log.d(TAG, ">>>>>> CALLING relayout"); 4096 if (params != null && mOrigWindowType != params.type) { 4097 // For compatibility with old apps, don't crash here. 4098 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4099 Slog.w(TAG, "Window type can not be changed after " 4100 + "the window is added; ignoring change of " + mView); 4101 params.type = mOrigWindowType; 4102 } 4103 } 4104 int relayoutResult = mWindowSession.relayout( 4105 mWindow, mSeq, params, 4106 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4107 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4108 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4109 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4110 mPendingConfiguration, mSurface); 4111 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4112 if (restore) { 4113 params.restore(); 4114 } 4115 4116 if (mTranslator != null) { 4117 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4118 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4119 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4120 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4121 } 4122 return relayoutResult; 4123 } 4124 4125 /** 4126 * {@inheritDoc} 4127 */ 4128 public void playSoundEffect(int effectId) { 4129 checkThread(); 4130 4131 try { 4132 final AudioManager audioManager = getAudioManager(); 4133 4134 switch (effectId) { 4135 case SoundEffectConstants.CLICK: 4136 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4137 return; 4138 case SoundEffectConstants.NAVIGATION_DOWN: 4139 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4140 return; 4141 case SoundEffectConstants.NAVIGATION_LEFT: 4142 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4143 return; 4144 case SoundEffectConstants.NAVIGATION_RIGHT: 4145 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4146 return; 4147 case SoundEffectConstants.NAVIGATION_UP: 4148 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4149 return; 4150 default: 4151 throw new IllegalArgumentException("unknown effect id " + effectId + 4152 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4153 } 4154 } catch (IllegalStateException e) { 4155 // Exception thrown by getAudioManager() when mView is null 4156 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4157 e.printStackTrace(); 4158 } 4159 } 4160 4161 /** 4162 * {@inheritDoc} 4163 */ 4164 public boolean performHapticFeedback(int effectId, boolean always) { 4165 try { 4166 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4167 } catch (RemoteException e) { 4168 return false; 4169 } 4170 } 4171 4172 /** 4173 * {@inheritDoc} 4174 */ 4175 public View focusSearch(View focused, int direction) { 4176 checkThread(); 4177 if (!(mView instanceof ViewGroup)) { 4178 return null; 4179 } 4180 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4181 } 4182 4183 public void debug() { 4184 mView.debug(); 4185 } 4186 4187 public void dumpGfxInfo(int[] info) { 4188 info[0] = info[1] = 0; 4189 if (mView != null) { 4190 getGfxInfo(mView, info); 4191 } 4192 } 4193 4194 private static void getGfxInfo(View view, int[] info) { 4195 DisplayList displayList = view.mDisplayList; 4196 info[0]++; 4197 if (displayList != null) { 4198 info[1] += displayList.getSize(); 4199 } 4200 4201 if (view instanceof ViewGroup) { 4202 ViewGroup group = (ViewGroup) view; 4203 4204 int count = group.getChildCount(); 4205 for (int i = 0; i < count; i++) { 4206 getGfxInfo(group.getChildAt(i), info); 4207 } 4208 } 4209 } 4210 4211 public void die(boolean immediate) { 4212 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4213 // done by dispatchDetachedFromWindow will cause havoc on return. 4214 if (immediate && !mIsInTraversal) { 4215 doDie(); 4216 } else { 4217 if (!mIsDrawing) { 4218 destroyHardwareRenderer(); 4219 } else { 4220 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4221 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4222 } 4223 mHandler.sendEmptyMessage(MSG_DIE); 4224 } 4225 } 4226 4227 void doDie() { 4228 checkThread(); 4229 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4230 synchronized (this) { 4231 if (mAdded) { 4232 dispatchDetachedFromWindow(); 4233 } 4234 4235 if (mAdded && !mFirst) { 4236 invalidateDisplayLists(); 4237 destroyHardwareRenderer(); 4238 4239 if (mView != null) { 4240 int viewVisibility = mView.getVisibility(); 4241 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4242 if (mWindowAttributesChanged || viewVisibilityChanged) { 4243 // If layout params have been changed, first give them 4244 // to the window manager to make sure it has the correct 4245 // animation info. 4246 try { 4247 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4248 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4249 mWindowSession.finishDrawing(mWindow); 4250 } 4251 } catch (RemoteException e) { 4252 } 4253 } 4254 4255 mSurface.release(); 4256 } 4257 } 4258 4259 mAdded = false; 4260 } 4261 } 4262 4263 public void requestUpdateConfiguration(Configuration config) { 4264 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4265 mHandler.sendMessage(msg); 4266 } 4267 4268 public void loadSystemProperties() { 4269 mHandler.post(new Runnable() { 4270 @Override 4271 public void run() { 4272 // Profiling 4273 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4274 profileRendering(mAttachInfo.mHasWindowFocus); 4275 4276 // Hardware rendering 4277 if (mAttachInfo.mHardwareRenderer != null) { 4278 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4279 invalidate(); 4280 } 4281 } 4282 4283 // Layout debugging 4284 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4285 if (layout != mAttachInfo.mDebugLayout) { 4286 mAttachInfo.mDebugLayout = layout; 4287 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4288 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4289 } 4290 } 4291 } 4292 }); 4293 } 4294 4295 private void destroyHardwareRenderer() { 4296 AttachInfo attachInfo = mAttachInfo; 4297 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4298 4299 if (hardwareRenderer != null) { 4300 if (mView != null) { 4301 hardwareRenderer.destroyHardwareResources(mView); 4302 } 4303 hardwareRenderer.destroy(true); 4304 hardwareRenderer.setRequested(false); 4305 4306 attachInfo.mHardwareRenderer = null; 4307 attachInfo.mHardwareAccelerated = false; 4308 } 4309 } 4310 4311 public void dispatchFinishInputConnection(InputConnection connection) { 4312 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4313 mHandler.sendMessage(msg); 4314 } 4315 4316 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4317 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4318 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4319 + " contentInsets=" + contentInsets.toShortString() 4320 + " visibleInsets=" + visibleInsets.toShortString() 4321 + " reportDraw=" + reportDraw); 4322 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4323 if (mTranslator != null) { 4324 mTranslator.translateRectInScreenToAppWindow(frame); 4325 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4326 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4327 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4328 } 4329 SomeArgs args = SomeArgs.obtain(); 4330 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4331 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4332 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4333 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4334 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4335 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4336 msg.obj = args; 4337 mHandler.sendMessage(msg); 4338 } 4339 4340 public void dispatchMoved(int newX, int newY) { 4341 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4342 if (mTranslator != null) { 4343 PointF point = new PointF(newX, newY); 4344 mTranslator.translatePointInScreenToAppWindow(point); 4345 newX = (int) (point.x + 0.5); 4346 newY = (int) (point.y + 0.5); 4347 } 4348 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4349 mHandler.sendMessage(msg); 4350 } 4351 4352 /** 4353 * Represents a pending input event that is waiting in a queue. 4354 * 4355 * Input events are processed in serial order by the timestamp specified by 4356 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4357 * one input event to the application at a time and waits for the application 4358 * to finish handling it before delivering the next one. 4359 * 4360 * However, because the application or IME can synthesize and inject multiple 4361 * key events at a time without going through the input dispatcher, we end up 4362 * needing a queue on the application's side. 4363 */ 4364 private static final class QueuedInputEvent { 4365 public static final int FLAG_DELIVER_POST_IME = 1; 4366 4367 public QueuedInputEvent mNext; 4368 4369 public InputEvent mEvent; 4370 public InputEventReceiver mReceiver; 4371 public int mFlags; 4372 } 4373 4374 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4375 InputEventReceiver receiver, int flags) { 4376 QueuedInputEvent q = mQueuedInputEventPool; 4377 if (q != null) { 4378 mQueuedInputEventPoolSize -= 1; 4379 mQueuedInputEventPool = q.mNext; 4380 q.mNext = null; 4381 } else { 4382 q = new QueuedInputEvent(); 4383 } 4384 4385 q.mEvent = event; 4386 q.mReceiver = receiver; 4387 q.mFlags = flags; 4388 return q; 4389 } 4390 4391 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4392 q.mEvent = null; 4393 q.mReceiver = null; 4394 4395 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4396 mQueuedInputEventPoolSize += 1; 4397 q.mNext = mQueuedInputEventPool; 4398 mQueuedInputEventPool = q; 4399 } 4400 } 4401 4402 void enqueueInputEvent(InputEvent event) { 4403 enqueueInputEvent(event, null, 0, false); 4404 } 4405 4406 void enqueueInputEvent(InputEvent event, 4407 InputEventReceiver receiver, int flags, boolean processImmediately) { 4408 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4409 4410 // Always enqueue the input event in order, regardless of its time stamp. 4411 // We do this because the application or the IME may inject key events 4412 // in response to touch events and we want to ensure that the injected keys 4413 // are processed in the order they were received and we cannot trust that 4414 // the time stamp of injected events are monotonic. 4415 QueuedInputEvent last = mPendingInputEventTail; 4416 if (last == null) { 4417 mPendingInputEventHead = q; 4418 mPendingInputEventTail = q; 4419 } else { 4420 last.mNext = q; 4421 mPendingInputEventTail = q; 4422 } 4423 mPendingInputEventCount += 1; 4424 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4425 mPendingInputEventCount); 4426 4427 if (processImmediately) { 4428 doProcessInputEvents(); 4429 } else { 4430 scheduleProcessInputEvents(); 4431 } 4432 } 4433 4434 private void scheduleProcessInputEvents() { 4435 if (!mProcessInputEventsScheduled) { 4436 mProcessInputEventsScheduled = true; 4437 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4438 msg.setAsynchronous(true); 4439 mHandler.sendMessage(msg); 4440 } 4441 } 4442 4443 void doProcessInputEvents() { 4444 // Handle all of the available pending input events. Currently this will immediately 4445 // process all of the events it can until it encounters one that must go through the IME. 4446 // After that it will continue adding events to the current input queue but will wait for a 4447 // response from the IME, regardless of whether that particular event needs it or not, in 4448 // order to guarantee ordering consistency. This could be slightly improved by only 4449 // queueing events whose source has previously encountered something that needs to be 4450 // handled by the IME, and otherwise handling them immediately since we only need to 4451 // guarantee ordering within a given source. 4452 while (mPendingInputEventHead != null) { 4453 QueuedInputEvent q = mPendingInputEventHead; 4454 mPendingInputEventHead = q.mNext; 4455 if (mPendingInputEventHead == null) { 4456 mPendingInputEventTail = null; 4457 } 4458 q.mNext = null; 4459 4460 mPendingInputEventCount -= 1; 4461 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4462 mPendingInputEventCount); 4463 4464 int result = deliverInputEvent(q); 4465 4466 if (result == EVENT_HANDLED || result == EVENT_NOT_HANDLED) { 4467 finishInputEvent(q, result == EVENT_HANDLED); 4468 } else if (result == EVENT_PENDING_IME) { 4469 enqueueCurrentInputEvent(q); 4470 } else { 4471 q.mFlags |= QueuedInputEvent.FLAG_DELIVER_POST_IME; 4472 // If the IME decided not to handle this event, and we have no events already being 4473 // handled by the IME, go ahead and handle this one and then continue to the next 4474 // input event. Otherwise, queue it up and handle it after whatever in front of it 4475 // in the queue has been handled. 4476 if (mCurrentInputEventHead == null) { 4477 result = deliverInputEventPostIme(q); 4478 finishInputEvent(q, result == EVENT_HANDLED); 4479 } else { 4480 enqueueCurrentInputEvent(q); 4481 } 4482 } 4483 } 4484 4485 // We are done processing all input events that we can process right now 4486 // so we can clear the pending flag immediately. 4487 if (mProcessInputEventsScheduled) { 4488 mProcessInputEventsScheduled = false; 4489 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4490 } 4491 } 4492 4493 private void enqueueCurrentInputEvent(QueuedInputEvent q) { 4494 if (mCurrentInputEventHead == null) { 4495 mCurrentInputEventHead = q; 4496 mCurrentInputEventTail = q; 4497 } else { 4498 mCurrentInputEventTail.mNext = q; 4499 mCurrentInputEventTail = q; 4500 } 4501 mCurrentInputEventCount += 1; 4502 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mCurrentInputEventQueueLengthCounterName, 4503 mCurrentInputEventCount); 4504 } 4505 4506 private QueuedInputEvent dequeueCurrentInputEvent() { 4507 QueuedInputEvent q = mCurrentInputEventHead; 4508 mCurrentInputEventHead = q.mNext; 4509 if (mCurrentInputEventHead == null) { 4510 mCurrentInputEventTail = null; 4511 } 4512 q.mNext = null; 4513 mCurrentInputEventCount -= 1; 4514 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mCurrentInputEventQueueLengthCounterName, 4515 mCurrentInputEventCount); 4516 return q; 4517 } 4518 4519 int dispatchImeInputEvent(QueuedInputEvent q) { 4520 if (mLastWasImTarget) { 4521 InputMethodManager imm = InputMethodManager.peekInstance(); 4522 if (imm != null) { 4523 final InputEvent event = q.mEvent; 4524 final int seq = event.getSequenceNumber(); 4525 if (DEBUG_IMF) 4526 Log.v(TAG, "Sending input event to IME: seq=" + seq + " event=" + event); 4527 return imm.dispatchInputEvent(mView.getContext(), seq, event, 4528 mInputMethodCallback); 4529 } 4530 } 4531 return EVENT_POST_IME; 4532 } 4533 4534 void handleImeFinishedEvent(int seq, boolean handled) { 4535 QueuedInputEvent q = mCurrentInputEventHead; 4536 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4537 dequeueCurrentInputEvent(); 4538 if (DEBUG_IMF) { 4539 Log.v(TAG, "IME finished event: seq=" + seq 4540 + " handled=" + handled + " event=" + q); 4541 } 4542 4543 if (!handled) { 4544 // If the window doesn't currently have input focus, then drop 4545 // this event. This could be an event that came back from the 4546 // IME dispatch but the window has lost focus in the meantime. 4547 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4548 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4549 } else { 4550 final int result = deliverInputEventPostIme(q); 4551 if (result == EVENT_HANDLED) { 4552 handled = true; 4553 } 4554 } 4555 } 4556 4557 finishInputEvent(q, handled); 4558 4559 // Flush all of the input events that are no longer waiting on the IME 4560 while (mCurrentInputEventHead != null && (mCurrentInputEventHead.mFlags & 4561 QueuedInputEvent.FLAG_DELIVER_POST_IME) != 0) { 4562 q = dequeueCurrentInputEvent(); 4563 final int result = deliverInputEventPostIme(q); 4564 finishInputEvent(q, result == EVENT_HANDLED); 4565 } 4566 } else { 4567 if (DEBUG_IMF) { 4568 Log.v(TAG, "IME finished event: seq=" + seq 4569 + " handled=" + handled + ", event not found!"); 4570 } 4571 } 4572 4573 } 4574 4575 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4576 if (q.mReceiver != null) { 4577 q.mReceiver.finishInputEvent(q.mEvent, handled); 4578 } else { 4579 q.mEvent.recycleIfNeededAfterDispatch(); 4580 } 4581 4582 recycleQueuedInputEvent(q); 4583 } 4584 4585 private static boolean isTerminalInputEvent(InputEvent event) { 4586 if (event instanceof KeyEvent) { 4587 final KeyEvent keyEvent = (KeyEvent)event; 4588 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4589 } else { 4590 final MotionEvent motionEvent = (MotionEvent)event; 4591 final int action = motionEvent.getAction(); 4592 return action == MotionEvent.ACTION_UP 4593 || action == MotionEvent.ACTION_CANCEL 4594 || action == MotionEvent.ACTION_HOVER_EXIT; 4595 } 4596 } 4597 4598 void scheduleConsumeBatchedInput() { 4599 if (!mConsumeBatchedInputScheduled) { 4600 mConsumeBatchedInputScheduled = true; 4601 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4602 mConsumedBatchedInputRunnable, null); 4603 } 4604 } 4605 4606 void unscheduleConsumeBatchedInput() { 4607 if (mConsumeBatchedInputScheduled) { 4608 mConsumeBatchedInputScheduled = false; 4609 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4610 mConsumedBatchedInputRunnable, null); 4611 } 4612 } 4613 4614 void doConsumeBatchedInput(long frameTimeNanos) { 4615 if (mConsumeBatchedInputScheduled) { 4616 mConsumeBatchedInputScheduled = false; 4617 if (mInputEventReceiver != null) { 4618 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4619 } 4620 doProcessInputEvents(); 4621 } 4622 } 4623 4624 final class TraversalRunnable implements Runnable { 4625 @Override 4626 public void run() { 4627 doTraversal(); 4628 } 4629 } 4630 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4631 4632 final class WindowInputEventReceiver extends InputEventReceiver { 4633 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4634 super(inputChannel, looper); 4635 } 4636 4637 @Override 4638 public void onInputEvent(InputEvent event) { 4639 enqueueInputEvent(event, this, 0, true); 4640 } 4641 4642 @Override 4643 public void onBatchedInputEventPending() { 4644 scheduleConsumeBatchedInput(); 4645 } 4646 4647 @Override 4648 public void dispose() { 4649 unscheduleConsumeBatchedInput(); 4650 super.dispose(); 4651 } 4652 } 4653 WindowInputEventReceiver mInputEventReceiver; 4654 4655 final class ConsumeBatchedInputRunnable implements Runnable { 4656 @Override 4657 public void run() { 4658 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4659 } 4660 } 4661 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4662 new ConsumeBatchedInputRunnable(); 4663 boolean mConsumeBatchedInputScheduled; 4664 4665 final class InvalidateOnAnimationRunnable implements Runnable { 4666 private boolean mPosted; 4667 private ArrayList<View> mViews = new ArrayList<View>(); 4668 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4669 new ArrayList<AttachInfo.InvalidateInfo>(); 4670 private View[] mTempViews; 4671 private AttachInfo.InvalidateInfo[] mTempViewRects; 4672 4673 public void addView(View view) { 4674 synchronized (this) { 4675 mViews.add(view); 4676 postIfNeededLocked(); 4677 } 4678 } 4679 4680 public void addViewRect(AttachInfo.InvalidateInfo info) { 4681 synchronized (this) { 4682 mViewRects.add(info); 4683 postIfNeededLocked(); 4684 } 4685 } 4686 4687 public void removeView(View view) { 4688 synchronized (this) { 4689 mViews.remove(view); 4690 4691 for (int i = mViewRects.size(); i-- > 0; ) { 4692 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4693 if (info.target == view) { 4694 mViewRects.remove(i); 4695 info.recycle(); 4696 } 4697 } 4698 4699 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4700 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4701 mPosted = false; 4702 } 4703 } 4704 } 4705 4706 @Override 4707 public void run() { 4708 final int viewCount; 4709 final int viewRectCount; 4710 synchronized (this) { 4711 mPosted = false; 4712 4713 viewCount = mViews.size(); 4714 if (viewCount != 0) { 4715 mTempViews = mViews.toArray(mTempViews != null 4716 ? mTempViews : new View[viewCount]); 4717 mViews.clear(); 4718 } 4719 4720 viewRectCount = mViewRects.size(); 4721 if (viewRectCount != 0) { 4722 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4723 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4724 mViewRects.clear(); 4725 } 4726 } 4727 4728 for (int i = 0; i < viewCount; i++) { 4729 mTempViews[i].invalidate(); 4730 mTempViews[i] = null; 4731 } 4732 4733 for (int i = 0; i < viewRectCount; i++) { 4734 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4735 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4736 info.recycle(); 4737 } 4738 } 4739 4740 private void postIfNeededLocked() { 4741 if (!mPosted) { 4742 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4743 mPosted = true; 4744 } 4745 } 4746 } 4747 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4748 new InvalidateOnAnimationRunnable(); 4749 4750 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4751 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4752 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4753 } 4754 4755 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4756 long delayMilliseconds) { 4757 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4758 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4759 } 4760 4761 public void dispatchInvalidateOnAnimation(View view) { 4762 mInvalidateOnAnimationRunnable.addView(view); 4763 } 4764 4765 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4766 mInvalidateOnAnimationRunnable.addViewRect(info); 4767 } 4768 4769 public void enqueueDisplayList(DisplayList displayList) { 4770 mDisplayLists.add(displayList); 4771 } 4772 4773 public void cancelInvalidate(View view) { 4774 mHandler.removeMessages(MSG_INVALIDATE, view); 4775 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4776 // them to the pool 4777 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4778 mInvalidateOnAnimationRunnable.removeView(view); 4779 } 4780 4781 public void dispatchKey(KeyEvent event) { 4782 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4783 msg.setAsynchronous(true); 4784 mHandler.sendMessage(msg); 4785 } 4786 4787 public void dispatchKeyFromIme(KeyEvent event) { 4788 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4789 msg.setAsynchronous(true); 4790 mHandler.sendMessage(msg); 4791 } 4792 4793 public void dispatchUnhandledKey(KeyEvent event) { 4794 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4795 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4796 final int keyCode = event.getKeyCode(); 4797 final int metaState = event.getMetaState(); 4798 4799 // Check for fallback actions specified by the key character map. 4800 KeyCharacterMap.FallbackAction fallbackAction = 4801 kcm.getFallbackAction(keyCode, metaState); 4802 if (fallbackAction != null) { 4803 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4804 KeyEvent fallbackEvent = KeyEvent.obtain( 4805 event.getDownTime(), event.getEventTime(), 4806 event.getAction(), fallbackAction.keyCode, 4807 event.getRepeatCount(), fallbackAction.metaState, 4808 event.getDeviceId(), event.getScanCode(), 4809 flags, event.getSource(), null); 4810 fallbackAction.recycle(); 4811 4812 dispatchKey(fallbackEvent); 4813 } 4814 } 4815 } 4816 4817 public void dispatchAppVisibility(boolean visible) { 4818 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4819 msg.arg1 = visible ? 1 : 0; 4820 mHandler.sendMessage(msg); 4821 } 4822 4823 public void dispatchScreenStateChange(boolean on) { 4824 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4825 msg.arg1 = on ? 1 : 0; 4826 mHandler.sendMessage(msg); 4827 } 4828 4829 public void dispatchGetNewSurface() { 4830 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4831 mHandler.sendMessage(msg); 4832 } 4833 4834 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4835 Message msg = Message.obtain(); 4836 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4837 msg.arg1 = hasFocus ? 1 : 0; 4838 msg.arg2 = inTouchMode ? 1 : 0; 4839 mHandler.sendMessage(msg); 4840 } 4841 4842 public void dispatchCloseSystemDialogs(String reason) { 4843 Message msg = Message.obtain(); 4844 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4845 msg.obj = reason; 4846 mHandler.sendMessage(msg); 4847 } 4848 4849 public void dispatchDragEvent(DragEvent event) { 4850 final int what; 4851 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4852 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4853 mHandler.removeMessages(what); 4854 } else { 4855 what = MSG_DISPATCH_DRAG_EVENT; 4856 } 4857 Message msg = mHandler.obtainMessage(what, event); 4858 mHandler.sendMessage(msg); 4859 } 4860 4861 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4862 int localValue, int localChanges) { 4863 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4864 args.seq = seq; 4865 args.globalVisibility = globalVisibility; 4866 args.localValue = localValue; 4867 args.localChanges = localChanges; 4868 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4869 } 4870 4871 public void dispatchDoneAnimating() { 4872 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4873 } 4874 4875 public void dispatchCheckFocus() { 4876 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4877 // This will result in a call to checkFocus() below. 4878 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4879 } 4880 } 4881 4882 /** 4883 * Post a callback to send a 4884 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4885 * This event is send at most once every 4886 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4887 */ 4888 private void postSendWindowContentChangedCallback(View source) { 4889 if (mSendWindowContentChangedAccessibilityEvent == null) { 4890 mSendWindowContentChangedAccessibilityEvent = 4891 new SendWindowContentChangedAccessibilityEvent(); 4892 } 4893 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4894 if (oldSource == null) { 4895 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4896 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4897 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4898 } else { 4899 mSendWindowContentChangedAccessibilityEvent.mSource = 4900 getCommonPredecessor(oldSource, source); 4901 } 4902 } 4903 4904 /** 4905 * Remove a posted callback to send a 4906 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4907 */ 4908 private void removeSendWindowContentChangedCallback() { 4909 if (mSendWindowContentChangedAccessibilityEvent != null) { 4910 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4911 } 4912 } 4913 4914 public boolean showContextMenuForChild(View originalView) { 4915 return false; 4916 } 4917 4918 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4919 return null; 4920 } 4921 4922 public void createContextMenu(ContextMenu menu) { 4923 } 4924 4925 public void childDrawableStateChanged(View child) { 4926 } 4927 4928 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4929 if (mView == null) { 4930 return false; 4931 } 4932 // Intercept accessibility focus events fired by virtual nodes to keep 4933 // track of accessibility focus position in such nodes. 4934 final int eventType = event.getEventType(); 4935 switch (eventType) { 4936 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4937 final long sourceNodeId = event.getSourceNodeId(); 4938 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4939 sourceNodeId); 4940 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4941 if (source != null) { 4942 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4943 if (provider != null) { 4944 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4945 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4946 setAccessibilityFocus(source, node); 4947 } 4948 } 4949 } break; 4950 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4951 final long sourceNodeId = event.getSourceNodeId(); 4952 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4953 sourceNodeId); 4954 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4955 if (source != null) { 4956 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4957 if (provider != null) { 4958 setAccessibilityFocus(null, null); 4959 } 4960 } 4961 } break; 4962 } 4963 mAccessibilityManager.sendAccessibilityEvent(event); 4964 return true; 4965 } 4966 4967 @Override 4968 public void childAccessibilityStateChanged(View child) { 4969 postSendWindowContentChangedCallback(child); 4970 } 4971 4972 @Override 4973 public boolean canResolveLayoutDirection() { 4974 return true; 4975 } 4976 4977 @Override 4978 public boolean isLayoutDirectionResolved() { 4979 return true; 4980 } 4981 4982 @Override 4983 public int getLayoutDirection() { 4984 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 4985 } 4986 4987 @Override 4988 public boolean canResolveTextDirection() { 4989 return true; 4990 } 4991 4992 @Override 4993 public boolean isTextDirectionResolved() { 4994 return true; 4995 } 4996 4997 @Override 4998 public int getTextDirection() { 4999 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 5000 } 5001 5002 @Override 5003 public boolean canResolveTextAlignment() { 5004 return true; 5005 } 5006 5007 @Override 5008 public boolean isTextAlignmentResolved() { 5009 return true; 5010 } 5011 5012 @Override 5013 public int getTextAlignment() { 5014 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 5015 } 5016 5017 private View getCommonPredecessor(View first, View second) { 5018 if (mAttachInfo != null) { 5019 if (mTempHashSet == null) { 5020 mTempHashSet = new HashSet<View>(); 5021 } 5022 HashSet<View> seen = mTempHashSet; 5023 seen.clear(); 5024 View firstCurrent = first; 5025 while (firstCurrent != null) { 5026 seen.add(firstCurrent); 5027 ViewParent firstCurrentParent = firstCurrent.mParent; 5028 if (firstCurrentParent instanceof View) { 5029 firstCurrent = (View) firstCurrentParent; 5030 } else { 5031 firstCurrent = null; 5032 } 5033 } 5034 View secondCurrent = second; 5035 while (secondCurrent != null) { 5036 if (seen.contains(secondCurrent)) { 5037 seen.clear(); 5038 return secondCurrent; 5039 } 5040 ViewParent secondCurrentParent = secondCurrent.mParent; 5041 if (secondCurrentParent instanceof View) { 5042 secondCurrent = (View) secondCurrentParent; 5043 } else { 5044 secondCurrent = null; 5045 } 5046 } 5047 seen.clear(); 5048 } 5049 return null; 5050 } 5051 5052 void checkThread() { 5053 if (mThread != Thread.currentThread()) { 5054 throw new CalledFromWrongThreadException( 5055 "Only the original thread that created a view hierarchy can touch its views."); 5056 } 5057 } 5058 5059 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5060 // ViewAncestor never intercepts touch event, so this can be a no-op 5061 } 5062 5063 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5064 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5065 if (rectangle != null) { 5066 mTempRect.set(rectangle); 5067 mTempRect.offset(0, -mCurScrollY); 5068 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5069 try { 5070 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5071 } catch (RemoteException re) { 5072 /* ignore */ 5073 } 5074 } 5075 return scrolled; 5076 } 5077 5078 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5079 // Do nothing. 5080 } 5081 5082 class TakenSurfaceHolder extends BaseSurfaceHolder { 5083 @Override 5084 public boolean onAllowLockCanvas() { 5085 return mDrawingAllowed; 5086 } 5087 5088 @Override 5089 public void onRelayoutContainer() { 5090 // Not currently interesting -- from changing between fixed and layout size. 5091 } 5092 5093 public void setFormat(int format) { 5094 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5095 } 5096 5097 public void setType(int type) { 5098 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5099 } 5100 5101 @Override 5102 public void onUpdateSurface() { 5103 // We take care of format and type changes on our own. 5104 throw new IllegalStateException("Shouldn't be here"); 5105 } 5106 5107 public boolean isCreating() { 5108 return mIsCreating; 5109 } 5110 5111 @Override 5112 public void setFixedSize(int width, int height) { 5113 throw new UnsupportedOperationException( 5114 "Currently only support sizing from layout"); 5115 } 5116 5117 public void setKeepScreenOn(boolean screenOn) { 5118 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5119 } 5120 } 5121 5122 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5123 private WeakReference<ViewRootImpl> mViewAncestor; 5124 5125 public InputMethodCallback(ViewRootImpl viewAncestor) { 5126 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5127 } 5128 5129 @Override 5130 public void finishedEvent(int seq, boolean handled) { 5131 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5132 if (viewAncestor != null) { 5133 viewAncestor.handleImeFinishedEvent(seq, handled); 5134 } 5135 } 5136 } 5137 5138 static class W extends IWindow.Stub { 5139 private final WeakReference<ViewRootImpl> mViewAncestor; 5140 private final IWindowSession mWindowSession; 5141 5142 W(ViewRootImpl viewAncestor) { 5143 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5144 mWindowSession = viewAncestor.mWindowSession; 5145 } 5146 5147 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5148 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5149 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5150 if (viewAncestor != null) { 5151 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5152 visibleInsets, reportDraw, newConfig); 5153 } 5154 } 5155 5156 @Override 5157 public void moved(int newX, int newY) { 5158 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5159 if (viewAncestor != null) { 5160 viewAncestor.dispatchMoved(newX, newY); 5161 } 5162 } 5163 5164 public void dispatchAppVisibility(boolean visible) { 5165 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5166 if (viewAncestor != null) { 5167 viewAncestor.dispatchAppVisibility(visible); 5168 } 5169 } 5170 5171 public void dispatchScreenState(boolean on) { 5172 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5173 if (viewAncestor != null) { 5174 viewAncestor.dispatchScreenStateChange(on); 5175 } 5176 } 5177 5178 public void dispatchGetNewSurface() { 5179 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5180 if (viewAncestor != null) { 5181 viewAncestor.dispatchGetNewSurface(); 5182 } 5183 } 5184 5185 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5186 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5187 if (viewAncestor != null) { 5188 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5189 } 5190 } 5191 5192 private static int checkCallingPermission(String permission) { 5193 try { 5194 return ActivityManagerNative.getDefault().checkPermission( 5195 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5196 } catch (RemoteException e) { 5197 return PackageManager.PERMISSION_DENIED; 5198 } 5199 } 5200 5201 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5202 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5203 if (viewAncestor != null) { 5204 final View view = viewAncestor.mView; 5205 if (view != null) { 5206 if (checkCallingPermission(Manifest.permission.DUMP) != 5207 PackageManager.PERMISSION_GRANTED) { 5208 throw new SecurityException("Insufficient permissions to invoke" 5209 + " executeCommand() from pid=" + Binder.getCallingPid() 5210 + ", uid=" + Binder.getCallingUid()); 5211 } 5212 5213 OutputStream clientStream = null; 5214 try { 5215 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5216 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5217 } catch (IOException e) { 5218 e.printStackTrace(); 5219 } finally { 5220 if (clientStream != null) { 5221 try { 5222 clientStream.close(); 5223 } catch (IOException e) { 5224 e.printStackTrace(); 5225 } 5226 } 5227 } 5228 } 5229 } 5230 } 5231 5232 public void closeSystemDialogs(String reason) { 5233 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5234 if (viewAncestor != null) { 5235 viewAncestor.dispatchCloseSystemDialogs(reason); 5236 } 5237 } 5238 5239 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5240 boolean sync) { 5241 if (sync) { 5242 try { 5243 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5244 } catch (RemoteException e) { 5245 } 5246 } 5247 } 5248 5249 public void dispatchWallpaperCommand(String action, int x, int y, 5250 int z, Bundle extras, boolean sync) { 5251 if (sync) { 5252 try { 5253 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5254 } catch (RemoteException e) { 5255 } 5256 } 5257 } 5258 5259 /* Drag/drop */ 5260 public void dispatchDragEvent(DragEvent event) { 5261 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5262 if (viewAncestor != null) { 5263 viewAncestor.dispatchDragEvent(event); 5264 } 5265 } 5266 5267 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5268 int localValue, int localChanges) { 5269 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5270 if (viewAncestor != null) { 5271 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5272 localValue, localChanges); 5273 } 5274 } 5275 5276 public void doneAnimating() { 5277 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5278 if (viewAncestor != null) { 5279 viewAncestor.dispatchDoneAnimating(); 5280 } 5281 } 5282 } 5283 5284 /** 5285 * Maintains state information for a single trackball axis, generating 5286 * discrete (DPAD) movements based on raw trackball motion. 5287 */ 5288 static final class TrackballAxis { 5289 /** 5290 * The maximum amount of acceleration we will apply. 5291 */ 5292 static final float MAX_ACCELERATION = 20; 5293 5294 /** 5295 * The maximum amount of time (in milliseconds) between events in order 5296 * for us to consider the user to be doing fast trackball movements, 5297 * and thus apply an acceleration. 5298 */ 5299 static final long FAST_MOVE_TIME = 150; 5300 5301 /** 5302 * Scaling factor to the time (in milliseconds) between events to how 5303 * much to multiple/divide the current acceleration. When movement 5304 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5305 * FAST_MOVE_TIME it divides it. 5306 */ 5307 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5308 5309 float position; 5310 float absPosition; 5311 float acceleration = 1; 5312 long lastMoveTime = 0; 5313 int step; 5314 int dir; 5315 int nonAccelMovement; 5316 5317 void reset(int _step) { 5318 position = 0; 5319 acceleration = 1; 5320 lastMoveTime = 0; 5321 step = _step; 5322 dir = 0; 5323 } 5324 5325 /** 5326 * Add trackball movement into the state. If the direction of movement 5327 * has been reversed, the state is reset before adding the 5328 * movement (so that you don't have to compensate for any previously 5329 * collected movement before see the result of the movement in the 5330 * new direction). 5331 * 5332 * @return Returns the absolute value of the amount of movement 5333 * collected so far. 5334 */ 5335 float collect(float off, long time, String axis) { 5336 long normTime; 5337 if (off > 0) { 5338 normTime = (long)(off * FAST_MOVE_TIME); 5339 if (dir < 0) { 5340 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5341 position = 0; 5342 step = 0; 5343 acceleration = 1; 5344 lastMoveTime = 0; 5345 } 5346 dir = 1; 5347 } else if (off < 0) { 5348 normTime = (long)((-off) * FAST_MOVE_TIME); 5349 if (dir > 0) { 5350 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5351 position = 0; 5352 step = 0; 5353 acceleration = 1; 5354 lastMoveTime = 0; 5355 } 5356 dir = -1; 5357 } else { 5358 normTime = 0; 5359 } 5360 5361 // The number of milliseconds between each movement that is 5362 // considered "normal" and will not result in any acceleration 5363 // or deceleration, scaled by the offset we have here. 5364 if (normTime > 0) { 5365 long delta = time - lastMoveTime; 5366 lastMoveTime = time; 5367 float acc = acceleration; 5368 if (delta < normTime) { 5369 // The user is scrolling rapidly, so increase acceleration. 5370 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5371 if (scale > 1) acc *= scale; 5372 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5373 + off + " normTime=" + normTime + " delta=" + delta 5374 + " scale=" + scale + " acc=" + acc); 5375 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5376 } else { 5377 // The user is scrolling slowly, so decrease acceleration. 5378 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5379 if (scale > 1) acc /= scale; 5380 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5381 + off + " normTime=" + normTime + " delta=" + delta 5382 + " scale=" + scale + " acc=" + acc); 5383 acceleration = acc > 1 ? acc : 1; 5384 } 5385 } 5386 position += off; 5387 return (absPosition = Math.abs(position)); 5388 } 5389 5390 /** 5391 * Generate the number of discrete movement events appropriate for 5392 * the currently collected trackball movement. 5393 * 5394 * @param precision The minimum movement required to generate the 5395 * first discrete movement. 5396 * 5397 * @return Returns the number of discrete movements, either positive 5398 * or negative, or 0 if there is not enough trackball movement yet 5399 * for a discrete movement. 5400 */ 5401 int generate(float precision) { 5402 int movement = 0; 5403 nonAccelMovement = 0; 5404 do { 5405 final int dir = position >= 0 ? 1 : -1; 5406 switch (step) { 5407 // If we are going to execute the first step, then we want 5408 // to do this as soon as possible instead of waiting for 5409 // a full movement, in order to make things look responsive. 5410 case 0: 5411 if (absPosition < precision) { 5412 return movement; 5413 } 5414 movement += dir; 5415 nonAccelMovement += dir; 5416 step = 1; 5417 break; 5418 // If we have generated the first movement, then we need 5419 // to wait for the second complete trackball motion before 5420 // generating the second discrete movement. 5421 case 1: 5422 if (absPosition < 2) { 5423 return movement; 5424 } 5425 movement += dir; 5426 nonAccelMovement += dir; 5427 position += dir > 0 ? -2 : 2; 5428 absPosition = Math.abs(position); 5429 step = 2; 5430 break; 5431 // After the first two, we generate discrete movements 5432 // consistently with the trackball, applying an acceleration 5433 // if the trackball is moving quickly. This is a simple 5434 // acceleration on top of what we already compute based 5435 // on how quickly the wheel is being turned, to apply 5436 // a longer increasing acceleration to continuous movement 5437 // in one direction. 5438 default: 5439 if (absPosition < 1) { 5440 return movement; 5441 } 5442 movement += dir; 5443 position += dir >= 0 ? -1 : 1; 5444 absPosition = Math.abs(position); 5445 float acc = acceleration; 5446 acc *= 1.1f; 5447 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5448 break; 5449 } 5450 } while (true); 5451 } 5452 } 5453 5454 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5455 public CalledFromWrongThreadException(String msg) { 5456 super(msg); 5457 } 5458 } 5459 5460 private SurfaceHolder mHolder = new SurfaceHolder() { 5461 // we only need a SurfaceHolder for opengl. it would be nice 5462 // to implement everything else though, especially the callback 5463 // support (opengl doesn't make use of it right now, but eventually 5464 // will). 5465 public Surface getSurface() { 5466 return mSurface; 5467 } 5468 5469 public boolean isCreating() { 5470 return false; 5471 } 5472 5473 public void addCallback(Callback callback) { 5474 } 5475 5476 public void removeCallback(Callback callback) { 5477 } 5478 5479 public void setFixedSize(int width, int height) { 5480 } 5481 5482 public void setSizeFromLayout() { 5483 } 5484 5485 public void setFormat(int format) { 5486 } 5487 5488 public void setType(int type) { 5489 } 5490 5491 public void setKeepScreenOn(boolean screenOn) { 5492 } 5493 5494 public Canvas lockCanvas() { 5495 return null; 5496 } 5497 5498 public Canvas lockCanvas(Rect dirty) { 5499 return null; 5500 } 5501 5502 public void unlockCanvasAndPost(Canvas canvas) { 5503 } 5504 public Rect getSurfaceFrame() { 5505 return null; 5506 } 5507 }; 5508 5509 static RunQueue getRunQueue() { 5510 RunQueue rq = sRunQueues.get(); 5511 if (rq != null) { 5512 return rq; 5513 } 5514 rq = new RunQueue(); 5515 sRunQueues.set(rq); 5516 return rq; 5517 } 5518 5519 /** 5520 * The run queue is used to enqueue pending work from Views when no Handler is 5521 * attached. The work is executed during the next call to performTraversals on 5522 * the thread. 5523 * @hide 5524 */ 5525 static final class RunQueue { 5526 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5527 5528 void post(Runnable action) { 5529 postDelayed(action, 0); 5530 } 5531 5532 void postDelayed(Runnable action, long delayMillis) { 5533 HandlerAction handlerAction = new HandlerAction(); 5534 handlerAction.action = action; 5535 handlerAction.delay = delayMillis; 5536 5537 synchronized (mActions) { 5538 mActions.add(handlerAction); 5539 } 5540 } 5541 5542 void removeCallbacks(Runnable action) { 5543 final HandlerAction handlerAction = new HandlerAction(); 5544 handlerAction.action = action; 5545 5546 synchronized (mActions) { 5547 final ArrayList<HandlerAction> actions = mActions; 5548 5549 while (actions.remove(handlerAction)) { 5550 // Keep going 5551 } 5552 } 5553 } 5554 5555 void executeActions(Handler handler) { 5556 synchronized (mActions) { 5557 final ArrayList<HandlerAction> actions = mActions; 5558 final int count = actions.size(); 5559 5560 for (int i = 0; i < count; i++) { 5561 final HandlerAction handlerAction = actions.get(i); 5562 handler.postDelayed(handlerAction.action, handlerAction.delay); 5563 } 5564 5565 actions.clear(); 5566 } 5567 } 5568 5569 private static class HandlerAction { 5570 Runnable action; 5571 long delay; 5572 5573 @Override 5574 public boolean equals(Object o) { 5575 if (this == o) return true; 5576 if (o == null || getClass() != o.getClass()) return false; 5577 5578 HandlerAction that = (HandlerAction) o; 5579 return !(action != null ? !action.equals(that.action) : that.action != null); 5580 5581 } 5582 5583 @Override 5584 public int hashCode() { 5585 int result = action != null ? action.hashCode() : 0; 5586 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5587 return result; 5588 } 5589 } 5590 } 5591 5592 /** 5593 * Class for managing the accessibility interaction connection 5594 * based on the global accessibility state. 5595 */ 5596 final class AccessibilityInteractionConnectionManager 5597 implements AccessibilityStateChangeListener { 5598 public void onAccessibilityStateChanged(boolean enabled) { 5599 if (enabled) { 5600 ensureConnection(); 5601 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5602 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5603 View focusedView = mView.findFocus(); 5604 if (focusedView != null && focusedView != mView) { 5605 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5606 } 5607 } 5608 } else { 5609 ensureNoConnection(); 5610 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5611 } 5612 } 5613 5614 public void ensureConnection() { 5615 if (mAttachInfo != null) { 5616 final boolean registered = 5617 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5618 if (!registered) { 5619 mAttachInfo.mAccessibilityWindowId = 5620 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5621 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5622 } 5623 } 5624 } 5625 5626 public void ensureNoConnection() { 5627 final boolean registered = 5628 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5629 if (registered) { 5630 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5631 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5632 } 5633 } 5634 } 5635 5636 /** 5637 * This class is an interface this ViewAncestor provides to the 5638 * AccessibilityManagerService to the latter can interact with 5639 * the view hierarchy in this ViewAncestor. 5640 */ 5641 static final class AccessibilityInteractionConnection 5642 extends IAccessibilityInteractionConnection.Stub { 5643 private final WeakReference<ViewRootImpl> mViewRootImpl; 5644 5645 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5646 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5647 } 5648 5649 @Override 5650 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5651 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5652 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5653 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5654 if (viewRootImpl != null && viewRootImpl.mView != null) { 5655 viewRootImpl.getAccessibilityInteractionController() 5656 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5657 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5658 spec); 5659 } else { 5660 // We cannot make the call and notify the caller so it does not wait. 5661 try { 5662 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5663 } catch (RemoteException re) { 5664 /* best effort - ignore */ 5665 } 5666 } 5667 } 5668 5669 @Override 5670 public void performAccessibilityAction(long accessibilityNodeId, int action, 5671 Bundle arguments, int interactionId, 5672 IAccessibilityInteractionConnectionCallback callback, int flags, 5673 int interogatingPid, long interrogatingTid) { 5674 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5675 if (viewRootImpl != null && viewRootImpl.mView != null) { 5676 viewRootImpl.getAccessibilityInteractionController() 5677 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5678 interactionId, callback, flags, interogatingPid, interrogatingTid); 5679 } else { 5680 // We cannot make the call and notify the caller so it does not wait. 5681 try { 5682 callback.setPerformAccessibilityActionResult(false, interactionId); 5683 } catch (RemoteException re) { 5684 /* best effort - ignore */ 5685 } 5686 } 5687 } 5688 5689 @Override 5690 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5691 String viewId, int interactionId, 5692 IAccessibilityInteractionConnectionCallback callback, int flags, 5693 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5694 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5695 if (viewRootImpl != null && viewRootImpl.mView != null) { 5696 viewRootImpl.getAccessibilityInteractionController() 5697 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5698 viewId, interactionId, callback, flags, interrogatingPid, 5699 interrogatingTid, spec); 5700 } else { 5701 // We cannot make the call and notify the caller so it does not wait. 5702 try { 5703 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5704 } catch (RemoteException re) { 5705 /* best effort - ignore */ 5706 } 5707 } 5708 } 5709 5710 @Override 5711 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5712 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5713 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5714 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5715 if (viewRootImpl != null && viewRootImpl.mView != null) { 5716 viewRootImpl.getAccessibilityInteractionController() 5717 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5718 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5719 spec); 5720 } else { 5721 // We cannot make the call and notify the caller so it does not wait. 5722 try { 5723 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5724 } catch (RemoteException re) { 5725 /* best effort - ignore */ 5726 } 5727 } 5728 } 5729 5730 @Override 5731 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5732 IAccessibilityInteractionConnectionCallback callback, int flags, 5733 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5734 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5735 if (viewRootImpl != null && viewRootImpl.mView != null) { 5736 viewRootImpl.getAccessibilityInteractionController() 5737 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5738 flags, interrogatingPid, interrogatingTid, spec); 5739 } else { 5740 // We cannot make the call and notify the caller so it does not wait. 5741 try { 5742 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5743 } catch (RemoteException re) { 5744 /* best effort - ignore */ 5745 } 5746 } 5747 } 5748 5749 @Override 5750 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5751 IAccessibilityInteractionConnectionCallback callback, int flags, 5752 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5753 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5754 if (viewRootImpl != null && viewRootImpl.mView != null) { 5755 viewRootImpl.getAccessibilityInteractionController() 5756 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5757 callback, flags, interrogatingPid, interrogatingTid, spec); 5758 } else { 5759 // We cannot make the call and notify the caller so it does not wait. 5760 try { 5761 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5762 } catch (RemoteException re) { 5763 /* best effort - ignore */ 5764 } 5765 } 5766 } 5767 } 5768 5769 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5770 public View mSource; 5771 5772 public void run() { 5773 if (mSource != null) { 5774 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5775 mSource.resetAccessibilityStateChanged(); 5776 mSource = null; 5777 } 5778 } 5779 } 5780} 5781