ViewRootImpl.java revision 12bde60b39affbfdcb7ef6317e0a5f99c3f41b10
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.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.policy.PolicyManager; 77import com.android.internal.util.Predicate; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean WATCH_POINTER = 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 IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 long mLastTrackballTime = 0; 143 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 144 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 145 146 int mLastJoystickXDirection; 147 int mLastJoystickYDirection; 148 int mLastJoystickXKeyCode; 149 int mLastJoystickYKeyCode; 150 151 final int[] mTmpLocation = new int[2]; 152 153 final TypedValue mTmpValue = new TypedValue(); 154 155 final InputMethodCallback mInputMethodCallback; 156 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 157 int mPendingEventSeq = 0; 158 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 View mView; 168 View mFocusedView; 169 View mRealFocusedView; // this is not set to null in touch mode 170 int mViewVisibility; 171 boolean mAppVisible = true; 172 173 // Set to true if the owner of this window is in the stopped state, 174 // so the window should no longer be active. 175 boolean mStopped = false; 176 177 boolean mLastInCompatMode = false; 178 179 SurfaceHolder.Callback2 mSurfaceHolderCallback; 180 BaseSurfaceHolder mSurfaceHolder; 181 boolean mIsCreating; 182 boolean mDrawingAllowed; 183 184 final Region mTransparentRegion; 185 final Region mPreviousTransparentRegion; 186 187 int mWidth; 188 int mHeight; 189 Rect mDirty; 190 final Rect mCurrentDirty = new Rect(); 191 final Rect mPreviousDirty = new Rect(); 192 boolean mIsAnimating; 193 194 CompatibilityInfo.Translator mTranslator; 195 196 final View.AttachInfo mAttachInfo; 197 InputChannel mInputChannel; 198 InputQueue.Callback mInputQueueCallback; 199 InputQueue mInputQueue; 200 FallbackEventHandler mFallbackEventHandler; 201 202 final Rect mTempRect; // used in the transaction to not thrash the heap. 203 final Rect mVisRect; // used to retrieve visible rect of focused view. 204 205 boolean mTraversalScheduled; 206 long mLastTraversalFinishedTimeNanos; 207 long mLastDrawDurationNanos; 208 boolean mWillDrawSoon; 209 boolean mLayoutRequested; 210 boolean mFirst; 211 boolean mReportNextDraw; 212 boolean mFullRedrawNeeded; 213 boolean mNewSurfaceNeeded; 214 boolean mHasHadWindowFocus; 215 boolean mLastWasImTarget; 216 217 boolean mWindowAttributesChanged = false; 218 219 // These can be accessed by any thread, must be protected with a lock. 220 // Surface can never be reassigned or cleared (use Surface.clear()). 221 private final Surface mSurface = new Surface(); 222 223 boolean mAdded; 224 boolean mAddedTouchMode; 225 226 CompatibilityInfoHolder mCompatibilityInfo; 227 228 /*package*/ int mAddNesting; 229 230 // These are accessed by multiple threads. 231 final Rect mWinFrame; // frame given by window manager. 232 233 final Rect mPendingVisibleInsets = new Rect(); 234 final Rect mPendingContentInsets = new Rect(); 235 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 236 = new ViewTreeObserver.InternalInsetsInfo(); 237 238 final Configuration mLastConfiguration = new Configuration(); 239 final Configuration mPendingConfiguration = new Configuration(); 240 241 class ResizedInfo { 242 Rect coveredInsets; 243 Rect visibleInsets; 244 Configuration newConfig; 245 } 246 247 boolean mScrollMayChange; 248 int mSoftInputMode; 249 View mLastScrolledFocus; 250 int mScrollY; 251 int mCurScrollY; 252 Scroller mScroller; 253 HardwareLayer mResizeBuffer; 254 long mResizeBufferStartTime; 255 int mResizeBufferDuration; 256 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 257 private ArrayList<LayoutTransition> mPendingTransitions; 258 259 final ViewConfiguration mViewConfiguration; 260 261 /* Drag/drop */ 262 ClipDescription mDragDescription; 263 View mCurrentDragView; 264 volatile Object mLocalDragState; 265 final PointF mDragPoint = new PointF(); 266 final PointF mLastTouchPoint = new PointF(); 267 268 private boolean mProfileRendering; 269 private Thread mRenderProfiler; 270 private volatile boolean mRenderProfilingEnabled; 271 272 /** 273 * see {@link #playSoundEffect(int)} 274 */ 275 AudioManager mAudioManager; 276 277 final AccessibilityManager mAccessibilityManager; 278 279 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 280 281 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 282 283 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 284 285 private final int mDensity; 286 287 /** 288 * Consistency verifier for debugging purposes. 289 */ 290 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 291 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 292 new InputEventConsistencyVerifier(this, 0) : null; 293 294 public static IWindowSession getWindowSession(Looper mainLooper) { 295 synchronized (mStaticInit) { 296 if (!mInitialized) { 297 try { 298 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 299 sWindowSession = Display.getWindowManager().openSession( 300 imm.getClient(), imm.getInputContext()); 301 mInitialized = true; 302 } catch (RemoteException e) { 303 } 304 } 305 return sWindowSession; 306 } 307 } 308 309 public ViewRootImpl(Context context) { 310 super(); 311 312 if (MEASURE_LATENCY) { 313 if (lt == null) { 314 lt = new LatencyTimer(100, 1000); 315 } 316 } 317 318 // Initialize the statics when this class is first instantiated. This is 319 // done here instead of in the static block because Zygote does not 320 // allow the spawning of threads. 321 getWindowSession(context.getMainLooper()); 322 323 mThread = Thread.currentThread(); 324 mLocation = new WindowLeaked(null); 325 mLocation.fillInStackTrace(); 326 mWidth = -1; 327 mHeight = -1; 328 mDirty = new Rect(); 329 mTempRect = new Rect(); 330 mVisRect = new Rect(); 331 mWinFrame = new Rect(); 332 mWindow = new W(this); 333 mInputMethodCallback = new InputMethodCallback(this); 334 mViewVisibility = View.GONE; 335 mTransparentRegion = new Region(); 336 mPreviousTransparentRegion = new Region(); 337 mFirst = true; // true for the first time the view is added 338 mAdded = false; 339 mAccessibilityManager = AccessibilityManager.getInstance(context); 340 mAccessibilityInteractionConnectionManager = 341 new AccessibilityInteractionConnectionManager(); 342 mAccessibilityManager.addAccessibilityStateChangeListener( 343 mAccessibilityInteractionConnectionManager); 344 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 345 mViewConfiguration = ViewConfiguration.get(context); 346 mDensity = context.getResources().getDisplayMetrics().densityDpi; 347 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 348 mProfileRendering = Boolean.parseBoolean( 349 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 350 } 351 352 public static void addFirstDrawHandler(Runnable callback) { 353 synchronized (sFirstDrawHandlers) { 354 if (!sFirstDrawComplete) { 355 sFirstDrawHandlers.add(callback); 356 } 357 } 358 } 359 360 public static void addConfigCallback(ComponentCallbacks callback) { 361 synchronized (sConfigCallbacks) { 362 sConfigCallbacks.add(callback); 363 } 364 } 365 366 // FIXME for perf testing only 367 private boolean mProfile = false; 368 369 /** 370 * Call this to profile the next traversal call. 371 * FIXME for perf testing only. Remove eventually 372 */ 373 public void profile() { 374 mProfile = true; 375 } 376 377 /** 378 * Indicates whether we are in touch mode. Calling this method triggers an IPC 379 * call and should be avoided whenever possible. 380 * 381 * @return True, if the device is in touch mode, false otherwise. 382 * 383 * @hide 384 */ 385 static boolean isInTouchMode() { 386 if (mInitialized) { 387 try { 388 return sWindowSession.getInTouchMode(); 389 } catch (RemoteException e) { 390 } 391 } 392 return false; 393 } 394 395 /** 396 * We have one child 397 */ 398 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 399 synchronized (this) { 400 if (mView == null) { 401 mView = view; 402 mFallbackEventHandler.setView(view); 403 mWindowAttributes.copyFrom(attrs); 404 attrs = mWindowAttributes; 405 406 if (view instanceof RootViewSurfaceTaker) { 407 mSurfaceHolderCallback = 408 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 409 if (mSurfaceHolderCallback != null) { 410 mSurfaceHolder = new TakenSurfaceHolder(); 411 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 412 } 413 } 414 415 // If the application owns the surface, don't enable hardware acceleration 416 if (mSurfaceHolder == null) { 417 enableHardwareAcceleration(attrs); 418 } 419 420 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 421 mTranslator = compatibilityInfo.getTranslator(); 422 423 if (mTranslator != null) { 424 mSurface.setCompatibilityTranslator(mTranslator); 425 } 426 427 boolean restore = false; 428 if (mTranslator != null) { 429 restore = true; 430 attrs.backup(); 431 mTranslator.translateWindowLayout(attrs); 432 } 433 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 434 435 if (!compatibilityInfo.supportsScreen()) { 436 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 437 mLastInCompatMode = true; 438 } 439 440 mSoftInputMode = attrs.softInputMode; 441 mWindowAttributesChanged = true; 442 mAttachInfo.mRootView = view; 443 mAttachInfo.mScalingRequired = mTranslator != null; 444 mAttachInfo.mApplicationScale = 445 mTranslator == null ? 1.0f : mTranslator.applicationScale; 446 if (panelParentView != null) { 447 mAttachInfo.mPanelParentWindowToken 448 = panelParentView.getApplicationWindowToken(); 449 } 450 mAdded = true; 451 int res; /* = WindowManagerImpl.ADD_OKAY; */ 452 453 // Schedule the first layout -before- adding to the window 454 // manager, to make sure we do the relayout before receiving 455 // any other events from the system. 456 requestLayout(); 457 mInputChannel = new InputChannel(); 458 try { 459 res = sWindowSession.add(mWindow, mWindowAttributes, 460 getHostVisibility(), mAttachInfo.mContentInsets, 461 mInputChannel); 462 } catch (RemoteException e) { 463 mAdded = false; 464 mView = null; 465 mAttachInfo.mRootView = null; 466 mInputChannel = null; 467 mFallbackEventHandler.setView(null); 468 unscheduleTraversals(); 469 throw new RuntimeException("Adding window failed", e); 470 } finally { 471 if (restore) { 472 attrs.restore(); 473 } 474 } 475 476 if (mTranslator != null) { 477 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 478 } 479 mPendingContentInsets.set(mAttachInfo.mContentInsets); 480 mPendingVisibleInsets.set(0, 0, 0, 0); 481 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 482 if (res < WindowManagerImpl.ADD_OKAY) { 483 mView = null; 484 mAttachInfo.mRootView = null; 485 mAdded = false; 486 mFallbackEventHandler.setView(null); 487 unscheduleTraversals(); 488 switch (res) { 489 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 490 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 491 throw new WindowManagerImpl.BadTokenException( 492 "Unable to add window -- token " + attrs.token 493 + " is not valid; is your activity running?"); 494 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 495 throw new WindowManagerImpl.BadTokenException( 496 "Unable to add window -- token " + attrs.token 497 + " is not for an application"); 498 case WindowManagerImpl.ADD_APP_EXITING: 499 throw new WindowManagerImpl.BadTokenException( 500 "Unable to add window -- app for token " + attrs.token 501 + " is exiting"); 502 case WindowManagerImpl.ADD_DUPLICATE_ADD: 503 throw new WindowManagerImpl.BadTokenException( 504 "Unable to add window -- window " + mWindow 505 + " has already been added"); 506 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 507 // Silently ignore -- we would have just removed it 508 // right away, anyway. 509 return; 510 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 511 throw new WindowManagerImpl.BadTokenException( 512 "Unable to add window " + mWindow + 513 " -- another window of this type already exists"); 514 case WindowManagerImpl.ADD_PERMISSION_DENIED: 515 throw new WindowManagerImpl.BadTokenException( 516 "Unable to add window " + mWindow + 517 " -- permission denied for this window type"); 518 } 519 throw new RuntimeException( 520 "Unable to add window -- unknown error code " + res); 521 } 522 523 if (view instanceof RootViewSurfaceTaker) { 524 mInputQueueCallback = 525 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 526 } 527 if (mInputQueueCallback != null) { 528 mInputQueue = new InputQueue(mInputChannel); 529 mInputQueueCallback.onInputQueueCreated(mInputQueue); 530 } else { 531 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 532 Looper.myQueue()); 533 } 534 535 view.assignParent(this); 536 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 537 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 538 539 if (mAccessibilityManager.isEnabled()) { 540 mAccessibilityInteractionConnectionManager.ensureConnection(); 541 } 542 } 543 } 544 } 545 546 private void destroyHardwareResources() { 547 if (mAttachInfo.mHardwareRenderer != null) { 548 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 549 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 550 } 551 mAttachInfo.mHardwareRenderer.destroy(false); 552 } 553 } 554 555 void destroyHardwareLayers() { 556 if (mThread != Thread.currentThread()) { 557 if (mAttachInfo.mHardwareRenderer != null && 558 mAttachInfo.mHardwareRenderer.isEnabled()) { 559 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 560 } 561 } else { 562 if (mAttachInfo.mHardwareRenderer != null && 563 mAttachInfo.mHardwareRenderer.isEnabled()) { 564 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 565 } 566 } 567 } 568 569 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 570 mAttachInfo.mHardwareAccelerated = false; 571 mAttachInfo.mHardwareAccelerationRequested = false; 572 573 // Try to enable hardware acceleration if requested 574 final boolean hardwareAccelerated = 575 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 576 577 if (hardwareAccelerated) { 578 if (!HardwareRenderer.isAvailable()) { 579 return; 580 } 581 582 // Only enable hardware acceleration if we are not in the system process 583 // The window manager creates ViewAncestors to display animated preview windows 584 // of launching apps and we don't want those to be hardware accelerated 585 586 final boolean systemHwAccelerated = 587 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED_SYSTEM) != 0; 588 589 if (!HardwareRenderer.sRendererDisabled || systemHwAccelerated) { 590 // Don't enable hardware acceleration when we're not on the main thread 591 if (!systemHwAccelerated && Looper.getMainLooper() != Looper.myLooper()) { 592 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 593 + "acceleration outside of the main thread, aborting"); 594 return; 595 } 596 597 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 598 if (mAttachInfo.mHardwareRenderer != null) { 599 mAttachInfo.mHardwareRenderer.destroy(true); 600 } 601 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 602 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 603 = mAttachInfo.mHardwareRenderer != null; 604 } else { 605 // We would normally have enabled hardware acceleration, but 606 // haven't because we are in the system process. We still want 607 // what is drawn on the screen to behave as if it is accelerated, 608 // so that our preview starting windows visually match what will 609 // actually be drawn by the app. 610 mAttachInfo.mHardwareAccelerationRequested = true; 611 } 612 } 613 } 614 615 public View getView() { 616 return mView; 617 } 618 619 final WindowLeaked getLocation() { 620 return mLocation; 621 } 622 623 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 624 synchronized (this) { 625 int oldSoftInputMode = mWindowAttributes.softInputMode; 626 // preserve compatible window flag if exists. 627 int compatibleWindowFlag = 628 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 629 mWindowAttributes.copyFrom(attrs); 630 mWindowAttributes.flags |= compatibleWindowFlag; 631 632 if (newView) { 633 mSoftInputMode = attrs.softInputMode; 634 requestLayout(); 635 } 636 // Don't lose the mode we last auto-computed. 637 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 638 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 639 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 640 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 641 | (oldSoftInputMode 642 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 643 } 644 mWindowAttributesChanged = true; 645 scheduleTraversals(); 646 } 647 } 648 649 void handleAppVisibility(boolean visible) { 650 if (mAppVisible != visible) { 651 mAppVisible = visible; 652 scheduleTraversals(); 653 } 654 } 655 656 void handleGetNewSurface() { 657 mNewSurfaceNeeded = true; 658 mFullRedrawNeeded = true; 659 scheduleTraversals(); 660 } 661 662 /** 663 * {@inheritDoc} 664 */ 665 public void requestLayout() { 666 checkThread(); 667 mLayoutRequested = true; 668 scheduleTraversals(); 669 } 670 671 /** 672 * {@inheritDoc} 673 */ 674 public boolean isLayoutRequested() { 675 return mLayoutRequested; 676 } 677 678 public void invalidateChild(View child, Rect dirty) { 679 checkThread(); 680 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 681 if (dirty == null) { 682 // Fast invalidation for GL-enabled applications; GL must redraw everything 683 invalidate(); 684 return; 685 } 686 if (mCurScrollY != 0 || mTranslator != null) { 687 mTempRect.set(dirty); 688 dirty = mTempRect; 689 if (mCurScrollY != 0) { 690 dirty.offset(0, -mCurScrollY); 691 } 692 if (mTranslator != null) { 693 mTranslator.translateRectInAppWindowToScreen(dirty); 694 } 695 if (mAttachInfo.mScalingRequired) { 696 dirty.inset(-1, -1); 697 } 698 } 699 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 700 mAttachInfo.mSetIgnoreDirtyState = true; 701 mAttachInfo.mIgnoreDirtyState = true; 702 } 703 mDirty.union(dirty); 704 if (!mWillDrawSoon) { 705 scheduleTraversals(); 706 } 707 } 708 709 void invalidate() { 710 mDirty.set(0, 0, mWidth, mHeight); 711 scheduleTraversals(); 712 } 713 714 void setStopped(boolean stopped) { 715 if (mStopped != stopped) { 716 mStopped = stopped; 717 if (!stopped) { 718 scheduleTraversals(); 719 } 720 } 721 } 722 723 public ViewParent getParent() { 724 return null; 725 } 726 727 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 728 invalidateChild(null, dirty); 729 return null; 730 } 731 732 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 733 if (child != mView) { 734 throw new RuntimeException("child is not mine, honest!"); 735 } 736 // Note: don't apply scroll offset, because we want to know its 737 // visibility in the virtual canvas being given to the view hierarchy. 738 return r.intersect(0, 0, mWidth, mHeight); 739 } 740 741 public void bringChildToFront(View child) { 742 } 743 744 public void scheduleTraversals() { 745 if (!mTraversalScheduled) { 746 mTraversalScheduled = true; 747 748 //noinspection ConstantConditions 749 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 750 final long now = System.nanoTime(); 751 Log.d(TAG, "Latency: Scheduled traversal, it has been " 752 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 753 + "ms since the last traversal finished."); 754 } 755 756 sendEmptyMessage(DO_TRAVERSAL); 757 } 758 } 759 760 public void unscheduleTraversals() { 761 if (mTraversalScheduled) { 762 mTraversalScheduled = false; 763 removeMessages(DO_TRAVERSAL); 764 } 765 } 766 767 int getHostVisibility() { 768 return mAppVisible ? mView.getVisibility() : View.GONE; 769 } 770 771 void disposeResizeBuffer() { 772 if (mResizeBuffer != null) { 773 mResizeBuffer.destroy(); 774 mResizeBuffer = null; 775 } 776 } 777 778 /** 779 * Add LayoutTransition to the list of transitions to be started in the next traversal. 780 * This list will be cleared after the transitions on the list are start()'ed. These 781 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 782 * happens during the layout phase of traversal, which we want to complete before any of the 783 * animations are started (because those animations may side-effect properties that layout 784 * depends upon, like the bounding rectangles of the affected views). So we add the transition 785 * to the list and it is started just prior to starting the drawing phase of traversal. 786 * 787 * @param transition The LayoutTransition to be started on the next traversal. 788 * 789 * @hide 790 */ 791 public void requestTransitionStart(LayoutTransition transition) { 792 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 793 if (mPendingTransitions == null) { 794 mPendingTransitions = new ArrayList<LayoutTransition>(); 795 } 796 mPendingTransitions.add(transition); 797 } 798 } 799 800 private void performTraversals() { 801 // cache mView since it is used so much below... 802 final View host = mView; 803 804 if (DBG) { 805 System.out.println("======================================"); 806 System.out.println("performTraversals"); 807 host.debug(); 808 } 809 810 if (host == null || !mAdded) 811 return; 812 813 mTraversalScheduled = false; 814 mWillDrawSoon = true; 815 boolean windowSizeMayChange = false; 816 boolean fullRedrawNeeded = mFullRedrawNeeded; 817 boolean newSurface = false; 818 boolean surfaceChanged = false; 819 WindowManager.LayoutParams lp = mWindowAttributes; 820 821 int desiredWindowWidth; 822 int desiredWindowHeight; 823 int childWidthMeasureSpec; 824 int childHeightMeasureSpec; 825 826 final View.AttachInfo attachInfo = mAttachInfo; 827 828 final int viewVisibility = getHostVisibility(); 829 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 830 || mNewSurfaceNeeded; 831 832 WindowManager.LayoutParams params = null; 833 if (mWindowAttributesChanged) { 834 mWindowAttributesChanged = false; 835 surfaceChanged = true; 836 params = lp; 837 } 838 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 839 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 840 params = lp; 841 fullRedrawNeeded = true; 842 mLayoutRequested = true; 843 if (mLastInCompatMode) { 844 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 845 mLastInCompatMode = false; 846 } else { 847 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 848 mLastInCompatMode = true; 849 } 850 } 851 Rect frame = mWinFrame; 852 if (mFirst) { 853 fullRedrawNeeded = true; 854 mLayoutRequested = true; 855 856 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 857 // NOTE -- system code, won't try to do compat mode. 858 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 859 Point size = new Point(); 860 disp.getRealSize(size); 861 desiredWindowWidth = size.x; 862 desiredWindowHeight = size.y; 863 } else { 864 DisplayMetrics packageMetrics = 865 mView.getContext().getResources().getDisplayMetrics(); 866 desiredWindowWidth = packageMetrics.widthPixels; 867 desiredWindowHeight = packageMetrics.heightPixels; 868 } 869 870 // For the very first time, tell the view hierarchy that it 871 // is attached to the window. Note that at this point the surface 872 // object is not initialized to its backing store, but soon it 873 // will be (assuming the window is visible). 874 attachInfo.mSurface = mSurface; 875 // We used to use the following condition to choose 32 bits drawing caches: 876 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 877 // However, windows are now always 32 bits by default, so choose 32 bits 878 attachInfo.mUse32BitDrawingCache = true; 879 attachInfo.mHasWindowFocus = false; 880 attachInfo.mWindowVisibility = viewVisibility; 881 attachInfo.mRecomputeGlobalAttributes = false; 882 attachInfo.mKeepScreenOn = false; 883 attachInfo.mSystemUiVisibility = 0; 884 viewVisibilityChanged = false; 885 mLastConfiguration.setTo(host.getResources().getConfiguration()); 886 host.dispatchAttachedToWindow(attachInfo, 0); 887 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 888 889 host.fitSystemWindows(mAttachInfo.mContentInsets); 890 891 } else { 892 desiredWindowWidth = frame.width(); 893 desiredWindowHeight = frame.height(); 894 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 895 if (DEBUG_ORIENTATION) Log.v(TAG, 896 "View " + host + " resized to: " + frame); 897 fullRedrawNeeded = true; 898 mLayoutRequested = true; 899 windowSizeMayChange = true; 900 } 901 } 902 903 if (viewVisibilityChanged) { 904 attachInfo.mWindowVisibility = viewVisibility; 905 host.dispatchWindowVisibilityChanged(viewVisibility); 906 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 907 destroyHardwareResources(); 908 } 909 if (viewVisibility == View.GONE) { 910 // After making a window gone, we will count it as being 911 // shown for the first time the next time it gets focus. 912 mHasHadWindowFocus = false; 913 } 914 } 915 916 boolean insetsChanged = false; 917 918 if (mLayoutRequested && !mStopped) { 919 // Execute enqueued actions on every layout in case a view that was detached 920 // enqueued an action after being detached 921 getRunQueue().executeActions(attachInfo.mHandler); 922 923 final Resources res = mView.getContext().getResources(); 924 925 if (mFirst) { 926 // make sure touch mode code executes by setting cached value 927 // to opposite of the added touch mode. 928 mAttachInfo.mInTouchMode = !mAddedTouchMode; 929 ensureTouchModeLocally(mAddedTouchMode); 930 } else { 931 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 932 insetsChanged = true; 933 } 934 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 935 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 936 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 937 + mAttachInfo.mVisibleInsets); 938 } 939 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 940 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 941 windowSizeMayChange = true; 942 943 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 944 // NOTE -- system code, won't try to do compat mode. 945 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 946 Point size = new Point(); 947 disp.getRealSize(size); 948 desiredWindowWidth = size.x; 949 desiredWindowHeight = size.y; 950 } else { 951 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 952 desiredWindowWidth = packageMetrics.widthPixels; 953 desiredWindowHeight = packageMetrics.heightPixels; 954 } 955 } 956 } 957 958 // Ask host how big it wants to be 959 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 960 "Measuring " + host + " in display " + desiredWindowWidth 961 + "x" + desiredWindowHeight + "..."); 962 963 boolean goodMeasure = false; 964 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 965 // On large screens, we don't want to allow dialogs to just 966 // stretch to fill the entire width of the screen to display 967 // one line of text. First try doing the layout at a smaller 968 // size to see if it will fit. 969 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 970 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 971 int baseSize = 0; 972 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 973 baseSize = (int)mTmpValue.getDimension(packageMetrics); 974 } 975 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 976 if (baseSize != 0 && desiredWindowWidth > baseSize) { 977 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 978 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 979 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 980 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 981 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 982 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 983 goodMeasure = true; 984 } else { 985 // Didn't fit in that size... try expanding a bit. 986 baseSize = (baseSize+desiredWindowWidth)/2; 987 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 988 + baseSize); 989 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 990 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 991 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 992 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 993 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 994 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 995 goodMeasure = true; 996 } 997 } 998 } 999 } 1000 1001 if (!goodMeasure) { 1002 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1003 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1004 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1005 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1006 windowSizeMayChange = true; 1007 } 1008 } 1009 1010 if (DBG) { 1011 System.out.println("======================================"); 1012 System.out.println("performTraversals -- after measure"); 1013 host.debug(); 1014 } 1015 } 1016 1017 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1018 //Log.i(TAG, "Computing view hierarchy attributes!"); 1019 attachInfo.mRecomputeGlobalAttributes = false; 1020 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1021 int oldVis = attachInfo.mSystemUiVisibility; 1022 attachInfo.mKeepScreenOn = false; 1023 attachInfo.mSystemUiVisibility = 0; 1024 attachInfo.mHasSystemUiListeners = false; 1025 host.dispatchCollectViewAttributes(0); 1026 if (attachInfo.mKeepScreenOn != oldScreenOn 1027 || attachInfo.mSystemUiVisibility != oldVis 1028 || attachInfo.mHasSystemUiListeners) { 1029 params = lp; 1030 } 1031 } 1032 1033 if (mFirst || attachInfo.mViewVisibilityChanged) { 1034 attachInfo.mViewVisibilityChanged = false; 1035 int resizeMode = mSoftInputMode & 1036 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1037 // If we are in auto resize mode, then we need to determine 1038 // what mode to use now. 1039 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1040 final int N = attachInfo.mScrollContainers.size(); 1041 for (int i=0; i<N; i++) { 1042 if (attachInfo.mScrollContainers.get(i).isShown()) { 1043 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1044 } 1045 } 1046 if (resizeMode == 0) { 1047 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1048 } 1049 if ((lp.softInputMode & 1050 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1051 lp.softInputMode = (lp.softInputMode & 1052 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1053 resizeMode; 1054 params = lp; 1055 } 1056 } 1057 } 1058 1059 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1060 if (!PixelFormat.formatHasAlpha(params.format)) { 1061 params.format = PixelFormat.TRANSLUCENT; 1062 } 1063 } 1064 1065 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1066 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1067 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1068 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1069 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1070 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1071 1072 final boolean computesInternalInsets = 1073 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1074 1075 boolean insetsPending = false; 1076 int relayoutResult = 0; 1077 1078 if (mFirst || windowShouldResize || insetsChanged || 1079 viewVisibilityChanged || params != null) { 1080 1081 if (viewVisibility == View.VISIBLE) { 1082 // If this window is giving internal insets to the window 1083 // manager, and it is being added or changing its visibility, 1084 // then we want to first give the window manager "fake" 1085 // insets to cause it to effectively ignore the content of 1086 // the window during layout. This avoids it briefly causing 1087 // other windows to resize/move based on the raw frame of the 1088 // window, waiting until we can finish laying out this window 1089 // and get back to the window manager with the ultimately 1090 // computed insets. 1091 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1092 } 1093 1094 if (mSurfaceHolder != null) { 1095 mSurfaceHolder.mSurfaceLock.lock(); 1096 mDrawingAllowed = true; 1097 } 1098 1099 boolean hwInitialized = false; 1100 boolean contentInsetsChanged = false; 1101 boolean visibleInsetsChanged; 1102 boolean hadSurface = mSurface.isValid(); 1103 1104 try { 1105 int fl = 0; 1106 if (params != null) { 1107 fl = params.flags; 1108 if (attachInfo.mKeepScreenOn) { 1109 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1110 } 1111 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1112 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1113 || params.subtreeSystemUiVisibility != 0 1114 || params.systemUiVisibility != 0; 1115 } 1116 if (DEBUG_LAYOUT) { 1117 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1118 host.getMeasuredHeight() + ", params=" + params); 1119 } 1120 1121 final int surfaceGenerationId = mSurface.getGenerationId(); 1122 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1123 1124 if (params != null) { 1125 params.flags = fl; 1126 } 1127 1128 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1129 + " content=" + mPendingContentInsets.toShortString() 1130 + " visible=" + mPendingVisibleInsets.toShortString() 1131 + " surface=" + mSurface); 1132 1133 if (mPendingConfiguration.seq != 0) { 1134 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1135 + mPendingConfiguration); 1136 updateConfiguration(mPendingConfiguration, !mFirst); 1137 mPendingConfiguration.seq = 0; 1138 } 1139 1140 contentInsetsChanged = !mPendingContentInsets.equals( 1141 mAttachInfo.mContentInsets); 1142 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1143 mAttachInfo.mVisibleInsets); 1144 if (contentInsetsChanged) { 1145 if (mWidth > 0 && mHeight > 0 && 1146 mSurface != null && mSurface.isValid() && 1147 !mAttachInfo.mTurnOffWindowResizeAnim && 1148 mAttachInfo.mHardwareRenderer != null && 1149 mAttachInfo.mHardwareRenderer.isEnabled() && 1150 mAttachInfo.mHardwareRenderer.validate() && 1151 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1152 1153 disposeResizeBuffer(); 1154 1155 boolean completed = false; 1156 HardwareCanvas canvas = null; 1157 try { 1158 if (mResizeBuffer == null) { 1159 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1160 mWidth, mHeight, false); 1161 } else if (mResizeBuffer.getWidth() != mWidth || 1162 mResizeBuffer.getHeight() != mHeight) { 1163 mResizeBuffer.resize(mWidth, mHeight); 1164 } 1165 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1166 canvas.setViewport(mWidth, mHeight); 1167 canvas.onPreDraw(null); 1168 final int restoreCount = canvas.save(); 1169 1170 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1171 1172 int yoff; 1173 final boolean scrolling = mScroller != null 1174 && mScroller.computeScrollOffset(); 1175 if (scrolling) { 1176 yoff = mScroller.getCurrY(); 1177 mScroller.abortAnimation(); 1178 } else { 1179 yoff = mScrollY; 1180 } 1181 1182 canvas.translate(0, -yoff); 1183 if (mTranslator != null) { 1184 mTranslator.translateCanvas(canvas); 1185 } 1186 1187 mView.draw(canvas); 1188 1189 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1190 mResizeBufferDuration = mView.getResources().getInteger( 1191 com.android.internal.R.integer.config_mediumAnimTime); 1192 completed = true; 1193 1194 canvas.restoreToCount(restoreCount); 1195 } catch (OutOfMemoryError e) { 1196 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1197 } finally { 1198 if (canvas != null) { 1199 canvas.onPostDraw(); 1200 } 1201 if (mResizeBuffer != null) { 1202 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1203 if (!completed) { 1204 mResizeBuffer.destroy(); 1205 mResizeBuffer = null; 1206 } 1207 } 1208 } 1209 } 1210 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1211 host.fitSystemWindows(mAttachInfo.mContentInsets); 1212 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1213 + mAttachInfo.mContentInsets); 1214 } 1215 if (visibleInsetsChanged) { 1216 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1217 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1218 + mAttachInfo.mVisibleInsets); 1219 } 1220 1221 if (!hadSurface) { 1222 if (mSurface.isValid()) { 1223 // If we are creating a new surface, then we need to 1224 // completely redraw it. Also, when we get to the 1225 // point of drawing it we will hold off and schedule 1226 // a new traversal instead. This is so we can tell the 1227 // window manager about all of the windows being displayed 1228 // before actually drawing them, so it can display then 1229 // all at once. 1230 newSurface = true; 1231 fullRedrawNeeded = true; 1232 mPreviousTransparentRegion.setEmpty(); 1233 1234 if (mAttachInfo.mHardwareRenderer != null) { 1235 try { 1236 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1237 } catch (Surface.OutOfResourcesException e) { 1238 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1239 try { 1240 if (!sWindowSession.outOfMemory(mWindow)) { 1241 Slog.w(TAG, "No processes killed for memory; killing self"); 1242 Process.killProcess(Process.myPid()); 1243 } 1244 } catch (RemoteException ex) { 1245 } 1246 mLayoutRequested = true; // ask wm for a new surface next time. 1247 return; 1248 } 1249 } 1250 } 1251 } else if (!mSurface.isValid()) { 1252 // If the surface has been removed, then reset the scroll 1253 // positions. 1254 mLastScrolledFocus = null; 1255 mScrollY = mCurScrollY = 0; 1256 if (mScroller != null) { 1257 mScroller.abortAnimation(); 1258 } 1259 disposeResizeBuffer(); 1260 // Our surface is gone 1261 if (mAttachInfo.mHardwareRenderer != null && 1262 mAttachInfo.mHardwareRenderer.isEnabled()) { 1263 mAttachInfo.mHardwareRenderer.destroy(true); 1264 } 1265 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1266 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1267 fullRedrawNeeded = true; 1268 try { 1269 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1270 } catch (Surface.OutOfResourcesException e) { 1271 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1272 try { 1273 if (!sWindowSession.outOfMemory(mWindow)) { 1274 Slog.w(TAG, "No processes killed for memory; killing self"); 1275 Process.killProcess(Process.myPid()); 1276 } 1277 } catch (RemoteException ex) { 1278 } 1279 mLayoutRequested = true; // ask wm for a new surface next time. 1280 return; 1281 } 1282 } 1283 } catch (RemoteException e) { 1284 } 1285 1286 if (DEBUG_ORIENTATION) Log.v( 1287 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1288 1289 attachInfo.mWindowLeft = frame.left; 1290 attachInfo.mWindowTop = frame.top; 1291 1292 // !!FIXME!! This next section handles the case where we did not get the 1293 // window size we asked for. We should avoid this by getting a maximum size from 1294 // the window session beforehand. 1295 mWidth = frame.width(); 1296 mHeight = frame.height(); 1297 1298 if (mSurfaceHolder != null) { 1299 // The app owns the surface; tell it about what is going on. 1300 if (mSurface.isValid()) { 1301 // XXX .copyFrom() doesn't work! 1302 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1303 mSurfaceHolder.mSurface = mSurface; 1304 } 1305 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1306 mSurfaceHolder.mSurfaceLock.unlock(); 1307 if (mSurface.isValid()) { 1308 if (!hadSurface) { 1309 mSurfaceHolder.ungetCallbacks(); 1310 1311 mIsCreating = true; 1312 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1313 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1314 if (callbacks != null) { 1315 for (SurfaceHolder.Callback c : callbacks) { 1316 c.surfaceCreated(mSurfaceHolder); 1317 } 1318 } 1319 surfaceChanged = true; 1320 } 1321 if (surfaceChanged) { 1322 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1323 lp.format, mWidth, mHeight); 1324 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1325 if (callbacks != null) { 1326 for (SurfaceHolder.Callback c : callbacks) { 1327 c.surfaceChanged(mSurfaceHolder, lp.format, 1328 mWidth, mHeight); 1329 } 1330 } 1331 } 1332 mIsCreating = false; 1333 } else if (hadSurface) { 1334 mSurfaceHolder.ungetCallbacks(); 1335 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1336 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1337 if (callbacks != null) { 1338 for (SurfaceHolder.Callback c : callbacks) { 1339 c.surfaceDestroyed(mSurfaceHolder); 1340 } 1341 } 1342 mSurfaceHolder.mSurfaceLock.lock(); 1343 try { 1344 mSurfaceHolder.mSurface = new Surface(); 1345 } finally { 1346 mSurfaceHolder.mSurfaceLock.unlock(); 1347 } 1348 } 1349 } 1350 1351 if (hwInitialized || ((windowShouldResize || params != null) && 1352 mAttachInfo.mHardwareRenderer != null && 1353 mAttachInfo.mHardwareRenderer.isEnabled())) { 1354 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1355 if (!hwInitialized) { 1356 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1357 } 1358 } 1359 1360 if (!mStopped) { 1361 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1362 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1363 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1364 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1365 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1366 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1367 1368 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1369 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1370 + " mHeight=" + mHeight 1371 + " measuredHeight=" + host.getMeasuredHeight() 1372 + " coveredInsetsChanged=" + contentInsetsChanged); 1373 1374 // Ask host how big it wants to be 1375 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1376 1377 // Implementation of weights from WindowManager.LayoutParams 1378 // We just grow the dimensions as needed and re-measure if 1379 // needs be 1380 int width = host.getMeasuredWidth(); 1381 int height = host.getMeasuredHeight(); 1382 boolean measureAgain = false; 1383 1384 if (lp.horizontalWeight > 0.0f) { 1385 width += (int) ((mWidth - width) * lp.horizontalWeight); 1386 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1387 MeasureSpec.EXACTLY); 1388 measureAgain = true; 1389 } 1390 if (lp.verticalWeight > 0.0f) { 1391 height += (int) ((mHeight - height) * lp.verticalWeight); 1392 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1393 MeasureSpec.EXACTLY); 1394 measureAgain = true; 1395 } 1396 1397 if (measureAgain) { 1398 if (DEBUG_LAYOUT) Log.v(TAG, 1399 "And hey let's measure once more: width=" + width 1400 + " height=" + height); 1401 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1402 } 1403 1404 mLayoutRequested = true; 1405 } 1406 } 1407 } 1408 1409 final boolean didLayout = mLayoutRequested && !mStopped; 1410 boolean triggerGlobalLayoutListener = didLayout 1411 || attachInfo.mRecomputeGlobalAttributes; 1412 if (didLayout) { 1413 mLayoutRequested = false; 1414 mScrollMayChange = true; 1415 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1416 TAG, "Laying out " + host + " to (" + 1417 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1418 long startTime = 0L; 1419 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1420 startTime = SystemClock.elapsedRealtime(); 1421 } 1422 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1423 1424 if (false && ViewDebug.consistencyCheckEnabled) { 1425 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1426 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1427 + "please refer to the logs with the tag " 1428 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1429 } 1430 } 1431 1432 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1433 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1434 } 1435 1436 // By this point all views have been sized and positionned 1437 // We can compute the transparent area 1438 1439 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1440 // start out transparent 1441 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1442 host.getLocationInWindow(mTmpLocation); 1443 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1444 mTmpLocation[0] + host.mRight - host.mLeft, 1445 mTmpLocation[1] + host.mBottom - host.mTop); 1446 1447 host.gatherTransparentRegion(mTransparentRegion); 1448 if (mTranslator != null) { 1449 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1450 } 1451 1452 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1453 mPreviousTransparentRegion.set(mTransparentRegion); 1454 // reconfigure window manager 1455 try { 1456 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1457 } catch (RemoteException e) { 1458 } 1459 } 1460 } 1461 1462 if (DBG) { 1463 System.out.println("======================================"); 1464 System.out.println("performTraversals -- after setFrame"); 1465 host.debug(); 1466 } 1467 } 1468 1469 if (triggerGlobalLayoutListener) { 1470 attachInfo.mRecomputeGlobalAttributes = false; 1471 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1472 1473 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1474 postSendWindowContentChangedCallback(); 1475 } 1476 } 1477 1478 if (computesInternalInsets) { 1479 // Clear the original insets. 1480 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1481 insets.reset(); 1482 1483 // Compute new insets in place. 1484 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1485 1486 // Tell the window manager. 1487 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1488 mLastGivenInsets.set(insets); 1489 1490 // Translate insets to screen coordinates if needed. 1491 final Rect contentInsets; 1492 final Rect visibleInsets; 1493 final Region touchableRegion; 1494 if (mTranslator != null) { 1495 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1496 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1497 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1498 } else { 1499 contentInsets = insets.contentInsets; 1500 visibleInsets = insets.visibleInsets; 1501 touchableRegion = insets.touchableRegion; 1502 } 1503 1504 try { 1505 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1506 contentInsets, visibleInsets, touchableRegion); 1507 } catch (RemoteException e) { 1508 } 1509 } 1510 } 1511 1512 if (mFirst) { 1513 // handle first focus request 1514 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1515 + mView.hasFocus()); 1516 if (mView != null) { 1517 if (!mView.hasFocus()) { 1518 mView.requestFocus(View.FOCUS_FORWARD); 1519 mFocusedView = mRealFocusedView = mView.findFocus(); 1520 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1521 + mFocusedView); 1522 } else { 1523 mRealFocusedView = mView.findFocus(); 1524 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1525 + mRealFocusedView); 1526 } 1527 } 1528 } 1529 1530 mFirst = false; 1531 mWillDrawSoon = false; 1532 mNewSurfaceNeeded = false; 1533 mViewVisibility = viewVisibility; 1534 1535 if (mAttachInfo.mHasWindowFocus) { 1536 final boolean imTarget = WindowManager.LayoutParams 1537 .mayUseInputMethod(mWindowAttributes.flags); 1538 if (imTarget != mLastWasImTarget) { 1539 mLastWasImTarget = imTarget; 1540 InputMethodManager imm = InputMethodManager.peekInstance(); 1541 if (imm != null && imTarget) { 1542 imm.startGettingWindowFocus(mView); 1543 imm.onWindowFocus(mView, mView.findFocus(), 1544 mWindowAttributes.softInputMode, 1545 !mHasHadWindowFocus, mWindowAttributes.flags); 1546 } 1547 } 1548 } 1549 1550 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1551 viewVisibility != View.VISIBLE; 1552 1553 if (!cancelDraw && !newSurface) { 1554 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1555 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1556 mPendingTransitions.get(i).startChangingAnimations(); 1557 } 1558 mPendingTransitions.clear(); 1559 } 1560 mFullRedrawNeeded = false; 1561 1562 final long drawStartTime; 1563 if (ViewDebug.DEBUG_LATENCY) { 1564 drawStartTime = System.nanoTime(); 1565 } 1566 1567 draw(fullRedrawNeeded); 1568 1569 if (ViewDebug.DEBUG_LATENCY) { 1570 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1571 } 1572 1573 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1574 || mReportNextDraw) { 1575 if (LOCAL_LOGV) { 1576 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1577 } 1578 mReportNextDraw = false; 1579 if (mSurfaceHolder != null && mSurface.isValid()) { 1580 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1581 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1582 if (callbacks != null) { 1583 for (SurfaceHolder.Callback c : callbacks) { 1584 if (c instanceof SurfaceHolder.Callback2) { 1585 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1586 mSurfaceHolder); 1587 } 1588 } 1589 } 1590 } 1591 try { 1592 sWindowSession.finishDrawing(mWindow); 1593 } catch (RemoteException e) { 1594 } 1595 } 1596 } else { 1597 // We were supposed to report when we are done drawing. Since we canceled the 1598 // draw, remember it here. 1599 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1600 mReportNextDraw = true; 1601 } 1602 if (fullRedrawNeeded) { 1603 mFullRedrawNeeded = true; 1604 } 1605 1606 if (viewVisibility == View.VISIBLE) { 1607 // Try again 1608 scheduleTraversals(); 1609 } 1610 } 1611 } 1612 1613 public void requestTransparentRegion(View child) { 1614 // the test below should not fail unless someone is messing with us 1615 checkThread(); 1616 if (mView == child) { 1617 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1618 // Need to make sure we re-evaluate the window attributes next 1619 // time around, to ensure the window has the correct format. 1620 mWindowAttributesChanged = true; 1621 requestLayout(); 1622 } 1623 } 1624 1625 /** 1626 * Figures out the measure spec for the root view in a window based on it's 1627 * layout params. 1628 * 1629 * @param windowSize 1630 * The available width or height of the window 1631 * 1632 * @param rootDimension 1633 * The layout params for one dimension (width or height) of the 1634 * window. 1635 * 1636 * @return The measure spec to use to measure the root view. 1637 */ 1638 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1639 int measureSpec; 1640 switch (rootDimension) { 1641 1642 case ViewGroup.LayoutParams.MATCH_PARENT: 1643 // Window can't resize. Force root view to be windowSize. 1644 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1645 break; 1646 case ViewGroup.LayoutParams.WRAP_CONTENT: 1647 // Window can resize. Set max size for root view. 1648 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1649 break; 1650 default: 1651 // Window wants to be an exact size. Force root view to be that size. 1652 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1653 break; 1654 } 1655 return measureSpec; 1656 } 1657 1658 int mHardwareYOffset; 1659 int mResizeAlpha; 1660 final Paint mResizePaint = new Paint(); 1661 1662 public void onHardwarePreDraw(HardwareCanvas canvas) { 1663 canvas.translate(0, -mHardwareYOffset); 1664 } 1665 1666 public void onHardwarePostDraw(HardwareCanvas canvas) { 1667 if (mResizeBuffer != null) { 1668 mResizePaint.setAlpha(mResizeAlpha); 1669 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1670 } 1671 } 1672 1673 /** 1674 * @hide 1675 */ 1676 void outputDisplayList(View view) { 1677 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1678 DisplayList displayList = view.getDisplayList(); 1679 if (displayList != null) { 1680 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1681 } 1682 } 1683 } 1684 1685 /** 1686 * @see #PROPERTY_PROFILE_RENDERING 1687 */ 1688 private void profileRendering(boolean enabled) { 1689 if (mProfileRendering) { 1690 mRenderProfilingEnabled = enabled; 1691 if (mRenderProfiler == null) { 1692 mRenderProfiler = new Thread(new Runnable() { 1693 @Override 1694 public void run() { 1695 Log.d(TAG, "Starting profiling thread"); 1696 while (mRenderProfilingEnabled) { 1697 mAttachInfo.mHandler.post(new Runnable() { 1698 @Override 1699 public void run() { 1700 mDirty.set(0, 0, mWidth, mHeight); 1701 scheduleTraversals(); 1702 } 1703 }); 1704 try { 1705 // TODO: This should use vsync when we get an API 1706 Thread.sleep(15); 1707 } catch (InterruptedException e) { 1708 Log.d(TAG, "Exiting profiling thread"); 1709 } 1710 } 1711 } 1712 }, "Rendering Profiler"); 1713 mRenderProfiler.start(); 1714 } else { 1715 mRenderProfiler.interrupt(); 1716 mRenderProfiler = null; 1717 } 1718 } 1719 } 1720 1721 private void draw(boolean fullRedrawNeeded) { 1722 Surface surface = mSurface; 1723 if (surface == null || !surface.isValid()) { 1724 return; 1725 } 1726 1727 if (!sFirstDrawComplete) { 1728 synchronized (sFirstDrawHandlers) { 1729 sFirstDrawComplete = true; 1730 final int count = sFirstDrawHandlers.size(); 1731 for (int i = 0; i< count; i++) { 1732 post(sFirstDrawHandlers.get(i)); 1733 } 1734 } 1735 } 1736 1737 scrollToRectOrFocus(null, false); 1738 1739 if (mAttachInfo.mViewScrollChanged) { 1740 mAttachInfo.mViewScrollChanged = false; 1741 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1742 } 1743 1744 int yoff; 1745 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1746 if (animating) { 1747 yoff = mScroller.getCurrY(); 1748 } else { 1749 yoff = mScrollY; 1750 } 1751 if (mCurScrollY != yoff) { 1752 mCurScrollY = yoff; 1753 fullRedrawNeeded = true; 1754 } 1755 float appScale = mAttachInfo.mApplicationScale; 1756 boolean scalingRequired = mAttachInfo.mScalingRequired; 1757 1758 int resizeAlpha = 0; 1759 if (mResizeBuffer != null) { 1760 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1761 if (deltaTime < mResizeBufferDuration) { 1762 float amt = deltaTime/(float) mResizeBufferDuration; 1763 amt = mResizeInterpolator.getInterpolation(amt); 1764 animating = true; 1765 resizeAlpha = 255 - (int)(amt*255); 1766 } else { 1767 disposeResizeBuffer(); 1768 } 1769 } 1770 1771 Rect dirty = mDirty; 1772 if (mSurfaceHolder != null) { 1773 // The app owns the surface, we won't draw. 1774 dirty.setEmpty(); 1775 if (animating) { 1776 if (mScroller != null) { 1777 mScroller.abortAnimation(); 1778 } 1779 disposeResizeBuffer(); 1780 } 1781 return; 1782 } 1783 1784 if (fullRedrawNeeded) { 1785 mAttachInfo.mIgnoreDirtyState = true; 1786 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1787 } 1788 1789 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1790 if (!dirty.isEmpty() || mIsAnimating) { 1791 mIsAnimating = false; 1792 mHardwareYOffset = yoff; 1793 mResizeAlpha = resizeAlpha; 1794 1795 mCurrentDirty.set(dirty); 1796 mCurrentDirty.union(mPreviousDirty); 1797 mPreviousDirty.set(dirty); 1798 dirty.setEmpty(); 1799 1800 Rect currentDirty = mCurrentDirty; 1801 if (animating) { 1802 currentDirty = null; 1803 } 1804 1805 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1806 mPreviousDirty.set(0, 0, mWidth, mHeight); 1807 } 1808 } 1809 1810 if (animating) { 1811 mFullRedrawNeeded = true; 1812 scheduleTraversals(); 1813 } 1814 1815 return; 1816 } 1817 1818 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1819 Log.v(TAG, "Draw " + mView + "/" 1820 + mWindowAttributes.getTitle() 1821 + ": dirty={" + dirty.left + "," + dirty.top 1822 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1823 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1824 appScale + ", width=" + mWidth + ", height=" + mHeight); 1825 } 1826 1827 if (!dirty.isEmpty() || mIsAnimating) { 1828 Canvas canvas; 1829 try { 1830 int left = dirty.left; 1831 int top = dirty.top; 1832 int right = dirty.right; 1833 int bottom = dirty.bottom; 1834 1835 final long lockCanvasStartTime; 1836 if (ViewDebug.DEBUG_LATENCY) { 1837 lockCanvasStartTime = System.nanoTime(); 1838 } 1839 1840 canvas = surface.lockCanvas(dirty); 1841 1842 if (ViewDebug.DEBUG_LATENCY) { 1843 long now = System.nanoTime(); 1844 Log.d(TAG, "Latency: Spent " 1845 + ((now - lockCanvasStartTime) * 0.000001f) 1846 + "ms waiting for surface.lockCanvas()"); 1847 } 1848 1849 if (left != dirty.left || top != dirty.top || right != dirty.right || 1850 bottom != dirty.bottom) { 1851 mAttachInfo.mIgnoreDirtyState = true; 1852 } 1853 1854 // TODO: Do this in native 1855 canvas.setDensity(mDensity); 1856 } catch (Surface.OutOfResourcesException e) { 1857 Log.e(TAG, "OutOfResourcesException locking surface", e); 1858 try { 1859 if (!sWindowSession.outOfMemory(mWindow)) { 1860 Slog.w(TAG, "No processes killed for memory; killing self"); 1861 Process.killProcess(Process.myPid()); 1862 } 1863 } catch (RemoteException ex) { 1864 } 1865 mLayoutRequested = true; // ask wm for a new surface next time. 1866 return; 1867 } catch (IllegalArgumentException e) { 1868 Log.e(TAG, "IllegalArgumentException locking surface", e); 1869 // Don't assume this is due to out of memory, it could be 1870 // something else, and if it is something else then we could 1871 // kill stuff (or ourself) for no reason. 1872 mLayoutRequested = true; // ask wm for a new surface next time. 1873 return; 1874 } 1875 1876 try { 1877 if (!dirty.isEmpty() || mIsAnimating) { 1878 long startTime = 0L; 1879 1880 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1881 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1882 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1883 //canvas.drawARGB(255, 255, 0, 0); 1884 } 1885 1886 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1887 startTime = SystemClock.elapsedRealtime(); 1888 } 1889 1890 // If this bitmap's format includes an alpha channel, we 1891 // need to clear it before drawing so that the child will 1892 // properly re-composite its drawing on a transparent 1893 // background. This automatically respects the clip/dirty region 1894 // or 1895 // If we are applying an offset, we need to clear the area 1896 // where the offset doesn't appear to avoid having garbage 1897 // left in the blank areas. 1898 if (!canvas.isOpaque() || yoff != 0) { 1899 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1900 } 1901 1902 dirty.setEmpty(); 1903 mIsAnimating = false; 1904 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1905 mView.mPrivateFlags |= View.DRAWN; 1906 1907 if (DEBUG_DRAW) { 1908 Context cxt = mView.getContext(); 1909 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1910 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1911 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1912 } 1913 try { 1914 canvas.translate(0, -yoff); 1915 if (mTranslator != null) { 1916 mTranslator.translateCanvas(canvas); 1917 } 1918 canvas.setScreenDensity(scalingRequired 1919 ? DisplayMetrics.DENSITY_DEVICE : 0); 1920 mAttachInfo.mSetIgnoreDirtyState = false; 1921 mView.draw(canvas); 1922 } finally { 1923 if (!mAttachInfo.mSetIgnoreDirtyState) { 1924 // Only clear the flag if it was not set during the mView.draw() call 1925 mAttachInfo.mIgnoreDirtyState = false; 1926 } 1927 } 1928 1929 if (false && ViewDebug.consistencyCheckEnabled) { 1930 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1931 } 1932 1933 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1934 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1935 } 1936 } 1937 1938 } finally { 1939 surface.unlockCanvasAndPost(canvas); 1940 } 1941 } 1942 1943 if (LOCAL_LOGV) { 1944 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1945 } 1946 1947 if (animating) { 1948 mFullRedrawNeeded = true; 1949 scheduleTraversals(); 1950 } 1951 } 1952 1953 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1954 final View.AttachInfo attachInfo = mAttachInfo; 1955 final Rect ci = attachInfo.mContentInsets; 1956 final Rect vi = attachInfo.mVisibleInsets; 1957 int scrollY = 0; 1958 boolean handled = false; 1959 1960 if (vi.left > ci.left || vi.top > ci.top 1961 || vi.right > ci.right || vi.bottom > ci.bottom) { 1962 // We'll assume that we aren't going to change the scroll 1963 // offset, since we want to avoid that unless it is actually 1964 // going to make the focus visible... otherwise we scroll 1965 // all over the place. 1966 scrollY = mScrollY; 1967 // We can be called for two different situations: during a draw, 1968 // to update the scroll position if the focus has changed (in which 1969 // case 'rectangle' is null), or in response to a 1970 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1971 // is non-null and we just want to scroll to whatever that 1972 // rectangle is). 1973 View focus = mRealFocusedView; 1974 1975 // When in touch mode, focus points to the previously focused view, 1976 // which may have been removed from the view hierarchy. The following 1977 // line checks whether the view is still in our hierarchy. 1978 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1979 mRealFocusedView = null; 1980 return false; 1981 } 1982 1983 if (focus != mLastScrolledFocus) { 1984 // If the focus has changed, then ignore any requests to scroll 1985 // to a rectangle; first we want to make sure the entire focus 1986 // view is visible. 1987 rectangle = null; 1988 } 1989 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 1990 + " rectangle=" + rectangle + " ci=" + ci 1991 + " vi=" + vi); 1992 if (focus == mLastScrolledFocus && !mScrollMayChange 1993 && rectangle == null) { 1994 // Optimization: if the focus hasn't changed since last 1995 // time, and no layout has happened, then just leave things 1996 // as they are. 1997 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 1998 + mScrollY + " vi=" + vi.toShortString()); 1999 } else if (focus != null) { 2000 // We need to determine if the currently focused view is 2001 // within the visible part of the window and, if not, apply 2002 // a pan so it can be seen. 2003 mLastScrolledFocus = focus; 2004 mScrollMayChange = false; 2005 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2006 // Try to find the rectangle from the focus view. 2007 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2008 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2009 + mView.getWidth() + " h=" + mView.getHeight() 2010 + " ci=" + ci.toShortString() 2011 + " vi=" + vi.toShortString()); 2012 if (rectangle == null) { 2013 focus.getFocusedRect(mTempRect); 2014 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2015 + ": focusRect=" + mTempRect.toShortString()); 2016 if (mView instanceof ViewGroup) { 2017 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2018 focus, mTempRect); 2019 } 2020 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2021 "Focus in window: focusRect=" 2022 + mTempRect.toShortString() 2023 + " visRect=" + mVisRect.toShortString()); 2024 } else { 2025 mTempRect.set(rectangle); 2026 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2027 "Request scroll to rect: " 2028 + mTempRect.toShortString() 2029 + " visRect=" + mVisRect.toShortString()); 2030 } 2031 if (mTempRect.intersect(mVisRect)) { 2032 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2033 "Focus window visible rect: " 2034 + mTempRect.toShortString()); 2035 if (mTempRect.height() > 2036 (mView.getHeight()-vi.top-vi.bottom)) { 2037 // If the focus simply is not going to fit, then 2038 // best is probably just to leave things as-is. 2039 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2040 "Too tall; leaving scrollY=" + scrollY); 2041 } else if ((mTempRect.top-scrollY) < vi.top) { 2042 scrollY -= vi.top - (mTempRect.top-scrollY); 2043 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2044 "Top covered; scrollY=" + scrollY); 2045 } else if ((mTempRect.bottom-scrollY) 2046 > (mView.getHeight()-vi.bottom)) { 2047 scrollY += (mTempRect.bottom-scrollY) 2048 - (mView.getHeight()-vi.bottom); 2049 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2050 "Bottom covered; scrollY=" + scrollY); 2051 } 2052 handled = true; 2053 } 2054 } 2055 } 2056 } 2057 2058 if (scrollY != mScrollY) { 2059 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2060 + mScrollY + " , new=" + scrollY); 2061 if (!immediate && mResizeBuffer == null) { 2062 if (mScroller == null) { 2063 mScroller = new Scroller(mView.getContext()); 2064 } 2065 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2066 } else if (mScroller != null) { 2067 mScroller.abortAnimation(); 2068 } 2069 mScrollY = scrollY; 2070 } 2071 2072 return handled; 2073 } 2074 2075 public void requestChildFocus(View child, View focused) { 2076 checkThread(); 2077 if (mFocusedView != focused) { 2078 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2079 scheduleTraversals(); 2080 } 2081 mFocusedView = mRealFocusedView = focused; 2082 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2083 + mFocusedView); 2084 } 2085 2086 public void clearChildFocus(View child) { 2087 checkThread(); 2088 2089 View oldFocus = mFocusedView; 2090 2091 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2092 mFocusedView = mRealFocusedView = null; 2093 if (mView != null && !mView.hasFocus()) { 2094 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2095 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2096 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2097 } 2098 } else if (oldFocus != null) { 2099 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2100 } 2101 } 2102 2103 2104 public void focusableViewAvailable(View v) { 2105 checkThread(); 2106 2107 if (mView != null) { 2108 if (!mView.hasFocus()) { 2109 v.requestFocus(); 2110 } else { 2111 // the one case where will transfer focus away from the current one 2112 // is if the current view is a view group that prefers to give focus 2113 // to its children first AND the view is a descendant of it. 2114 mFocusedView = mView.findFocus(); 2115 boolean descendantsHaveDibsOnFocus = 2116 (mFocusedView instanceof ViewGroup) && 2117 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2118 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2119 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2120 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2121 v.requestFocus(); 2122 } 2123 } 2124 } 2125 } 2126 2127 public void recomputeViewAttributes(View child) { 2128 checkThread(); 2129 if (mView == child) { 2130 mAttachInfo.mRecomputeGlobalAttributes = true; 2131 if (!mWillDrawSoon) { 2132 scheduleTraversals(); 2133 } 2134 } 2135 } 2136 2137 void dispatchDetachedFromWindow() { 2138 if (mView != null && mView.mAttachInfo != null) { 2139 mView.dispatchDetachedFromWindow(); 2140 } 2141 2142 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2143 mAccessibilityManager.removeAccessibilityStateChangeListener( 2144 mAccessibilityInteractionConnectionManager); 2145 removeSendWindowContentChangedCallback(); 2146 2147 mView = null; 2148 mAttachInfo.mRootView = null; 2149 mAttachInfo.mSurface = null; 2150 2151 destroyHardwareRenderer(); 2152 2153 mSurface.release(); 2154 2155 if (mInputChannel != null) { 2156 if (mInputQueueCallback != null) { 2157 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2158 mInputQueueCallback = null; 2159 } else { 2160 InputQueue.unregisterInputChannel(mInputChannel); 2161 } 2162 } 2163 try { 2164 sWindowSession.remove(mWindow); 2165 } catch (RemoteException e) { 2166 } 2167 2168 // Dispose the input channel after removing the window so the Window Manager 2169 // doesn't interpret the input channel being closed as an abnormal termination. 2170 if (mInputChannel != null) { 2171 mInputChannel.dispose(); 2172 mInputChannel = null; 2173 } 2174 } 2175 2176 void updateConfiguration(Configuration config, boolean force) { 2177 if (DEBUG_CONFIGURATION) Log.v(TAG, 2178 "Applying new config to window " 2179 + mWindowAttributes.getTitle() 2180 + ": " + config); 2181 2182 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2183 if (ci != null) { 2184 config = new Configuration(config); 2185 ci.applyToConfiguration(config); 2186 } 2187 2188 synchronized (sConfigCallbacks) { 2189 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2190 sConfigCallbacks.get(i).onConfigurationChanged(config); 2191 } 2192 } 2193 if (mView != null) { 2194 // At this point the resources have been updated to 2195 // have the most recent config, whatever that is. Use 2196 // the on in them which may be newer. 2197 config = mView.getResources().getConfiguration(); 2198 if (force || mLastConfiguration.diff(config) != 0) { 2199 mLastConfiguration.setTo(config); 2200 mView.dispatchConfigurationChanged(config); 2201 } 2202 } 2203 } 2204 2205 /** 2206 * Return true if child is an ancestor of parent, (or equal to the parent). 2207 */ 2208 private static boolean isViewDescendantOf(View child, View parent) { 2209 if (child == parent) { 2210 return true; 2211 } 2212 2213 final ViewParent theParent = child.getParent(); 2214 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2215 } 2216 2217 private static void forceLayout(View view) { 2218 view.forceLayout(); 2219 if (view instanceof ViewGroup) { 2220 ViewGroup group = (ViewGroup) view; 2221 final int count = group.getChildCount(); 2222 for (int i = 0; i < count; i++) { 2223 forceLayout(group.getChildAt(i)); 2224 } 2225 } 2226 } 2227 2228 public final static int DO_TRAVERSAL = 1000; 2229 public final static int DIE = 1001; 2230 public final static int RESIZED = 1002; 2231 public final static int RESIZED_REPORT = 1003; 2232 public final static int WINDOW_FOCUS_CHANGED = 1004; 2233 public final static int DISPATCH_KEY = 1005; 2234 public final static int DISPATCH_POINTER = 1006; 2235 public final static int DISPATCH_TRACKBALL = 1007; 2236 public final static int DISPATCH_APP_VISIBILITY = 1008; 2237 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2238 public final static int FINISHED_EVENT = 1010; 2239 public final static int DISPATCH_KEY_FROM_IME = 1011; 2240 public final static int FINISH_INPUT_CONNECTION = 1012; 2241 public final static int CHECK_FOCUS = 1013; 2242 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2243 public final static int DISPATCH_DRAG_EVENT = 1015; 2244 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2245 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2246 public final static int DISPATCH_GENERIC_MOTION = 1018; 2247 public final static int UPDATE_CONFIGURATION = 1019; 2248 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2249 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2250 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2251 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2252 2253 @Override 2254 public String getMessageName(Message message) { 2255 switch (message.what) { 2256 case DO_TRAVERSAL: 2257 return "DO_TRAVERSAL"; 2258 case DIE: 2259 return "DIE"; 2260 case RESIZED: 2261 return "RESIZED"; 2262 case RESIZED_REPORT: 2263 return "RESIZED_REPORT"; 2264 case WINDOW_FOCUS_CHANGED: 2265 return "WINDOW_FOCUS_CHANGED"; 2266 case DISPATCH_KEY: 2267 return "DISPATCH_KEY"; 2268 case DISPATCH_POINTER: 2269 return "DISPATCH_POINTER"; 2270 case DISPATCH_TRACKBALL: 2271 return "DISPATCH_TRACKBALL"; 2272 case DISPATCH_APP_VISIBILITY: 2273 return "DISPATCH_APP_VISIBILITY"; 2274 case DISPATCH_GET_NEW_SURFACE: 2275 return "DISPATCH_GET_NEW_SURFACE"; 2276 case FINISHED_EVENT: 2277 return "FINISHED_EVENT"; 2278 case DISPATCH_KEY_FROM_IME: 2279 return "DISPATCH_KEY_FROM_IME"; 2280 case FINISH_INPUT_CONNECTION: 2281 return "FINISH_INPUT_CONNECTION"; 2282 case CHECK_FOCUS: 2283 return "CHECK_FOCUS"; 2284 case CLOSE_SYSTEM_DIALOGS: 2285 return "CLOSE_SYSTEM_DIALOGS"; 2286 case DISPATCH_DRAG_EVENT: 2287 return "DISPATCH_DRAG_EVENT"; 2288 case DISPATCH_DRAG_LOCATION_EVENT: 2289 return "DISPATCH_DRAG_LOCATION_EVENT"; 2290 case DISPATCH_SYSTEM_UI_VISIBILITY: 2291 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2292 case DISPATCH_GENERIC_MOTION: 2293 return "DISPATCH_GENERIC_MOTION"; 2294 case UPDATE_CONFIGURATION: 2295 return "UPDATE_CONFIGURATION"; 2296 case DO_PERFORM_ACCESSIBILITY_ACTION: 2297 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2298 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2299 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2300 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2301 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2302 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2303 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2304 2305 } 2306 return super.getMessageName(message); 2307 } 2308 2309 @Override 2310 public void handleMessage(Message msg) { 2311 switch (msg.what) { 2312 case View.AttachInfo.INVALIDATE_MSG: 2313 ((View) msg.obj).invalidate(); 2314 break; 2315 case View.AttachInfo.INVALIDATE_RECT_MSG: 2316 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2317 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2318 info.release(); 2319 break; 2320 case DO_TRAVERSAL: 2321 if (mProfile) { 2322 Debug.startMethodTracing("ViewAncestor"); 2323 } 2324 2325 final long traversalStartTime; 2326 if (ViewDebug.DEBUG_LATENCY) { 2327 traversalStartTime = System.nanoTime(); 2328 mLastDrawDurationNanos = 0; 2329 } 2330 2331 performTraversals(); 2332 2333 if (ViewDebug.DEBUG_LATENCY) { 2334 long now = System.nanoTime(); 2335 Log.d(TAG, "Latency: Spent " 2336 + ((now - traversalStartTime) * 0.000001f) 2337 + "ms in performTraversals(), with " 2338 + (mLastDrawDurationNanos * 0.000001f) 2339 + "ms of that time in draw()"); 2340 mLastTraversalFinishedTimeNanos = now; 2341 } 2342 2343 if (mProfile) { 2344 Debug.stopMethodTracing(); 2345 mProfile = false; 2346 } 2347 break; 2348 case FINISHED_EVENT: 2349 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2350 break; 2351 case DISPATCH_KEY: 2352 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2353 break; 2354 case DISPATCH_POINTER: 2355 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2356 break; 2357 case DISPATCH_TRACKBALL: 2358 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2359 break; 2360 case DISPATCH_GENERIC_MOTION: 2361 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2362 break; 2363 case DISPATCH_APP_VISIBILITY: 2364 handleAppVisibility(msg.arg1 != 0); 2365 break; 2366 case DISPATCH_GET_NEW_SURFACE: 2367 handleGetNewSurface(); 2368 break; 2369 case RESIZED: 2370 ResizedInfo ri = (ResizedInfo)msg.obj; 2371 2372 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2373 && mPendingContentInsets.equals(ri.coveredInsets) 2374 && mPendingVisibleInsets.equals(ri.visibleInsets) 2375 && ((ResizedInfo)msg.obj).newConfig == null) { 2376 break; 2377 } 2378 // fall through... 2379 case RESIZED_REPORT: 2380 if (mAdded) { 2381 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2382 if (config != null) { 2383 updateConfiguration(config, false); 2384 } 2385 mWinFrame.left = 0; 2386 mWinFrame.right = msg.arg1; 2387 mWinFrame.top = 0; 2388 mWinFrame.bottom = msg.arg2; 2389 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2390 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2391 if (msg.what == RESIZED_REPORT) { 2392 mReportNextDraw = true; 2393 } 2394 2395 if (mView != null) { 2396 forceLayout(mView); 2397 } 2398 requestLayout(); 2399 } 2400 break; 2401 case WINDOW_FOCUS_CHANGED: { 2402 if (mAdded) { 2403 boolean hasWindowFocus = msg.arg1 != 0; 2404 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2405 2406 profileRendering(hasWindowFocus); 2407 2408 if (hasWindowFocus) { 2409 boolean inTouchMode = msg.arg2 != 0; 2410 ensureTouchModeLocally(inTouchMode); 2411 2412 if (mAttachInfo.mHardwareRenderer != null && 2413 mSurface != null && mSurface.isValid()) { 2414 mFullRedrawNeeded = true; 2415 try { 2416 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2417 mAttachInfo, mHolder); 2418 } catch (Surface.OutOfResourcesException e) { 2419 Log.e(TAG, "OutOfResourcesException locking surface", e); 2420 try { 2421 if (!sWindowSession.outOfMemory(mWindow)) { 2422 Slog.w(TAG, "No processes killed for memory; killing self"); 2423 Process.killProcess(Process.myPid()); 2424 } 2425 } catch (RemoteException ex) { 2426 } 2427 // Retry in a bit. 2428 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2429 return; 2430 } 2431 } 2432 } 2433 2434 mLastWasImTarget = WindowManager.LayoutParams 2435 .mayUseInputMethod(mWindowAttributes.flags); 2436 2437 InputMethodManager imm = InputMethodManager.peekInstance(); 2438 if (mView != null) { 2439 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2440 imm.startGettingWindowFocus(mView); 2441 } 2442 mAttachInfo.mKeyDispatchState.reset(); 2443 mView.dispatchWindowFocusChanged(hasWindowFocus); 2444 } 2445 2446 // Note: must be done after the focus change callbacks, 2447 // so all of the view state is set up correctly. 2448 if (hasWindowFocus) { 2449 if (imm != null && mLastWasImTarget) { 2450 imm.onWindowFocus(mView, mView.findFocus(), 2451 mWindowAttributes.softInputMode, 2452 !mHasHadWindowFocus, mWindowAttributes.flags); 2453 } 2454 // Clear the forward bit. We can just do this directly, since 2455 // the window manager doesn't care about it. 2456 mWindowAttributes.softInputMode &= 2457 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2458 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2459 .softInputMode &= 2460 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2461 mHasHadWindowFocus = true; 2462 } 2463 2464 if (hasWindowFocus && mView != null) { 2465 sendAccessibilityEvents(); 2466 } 2467 } 2468 } break; 2469 case DIE: 2470 doDie(); 2471 break; 2472 case DISPATCH_KEY_FROM_IME: { 2473 if (LOCAL_LOGV) Log.v( 2474 TAG, "Dispatching key " 2475 + msg.obj + " from IME to " + mView); 2476 KeyEvent event = (KeyEvent)msg.obj; 2477 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2478 // The IME is trying to say this event is from the 2479 // system! Bad bad bad! 2480 //noinspection UnusedAssignment 2481 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2482 } 2483 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2484 } break; 2485 case FINISH_INPUT_CONNECTION: { 2486 InputMethodManager imm = InputMethodManager.peekInstance(); 2487 if (imm != null) { 2488 imm.reportFinishInputConnection((InputConnection)msg.obj); 2489 } 2490 } break; 2491 case CHECK_FOCUS: { 2492 InputMethodManager imm = InputMethodManager.peekInstance(); 2493 if (imm != null) { 2494 imm.checkFocus(); 2495 } 2496 } break; 2497 case CLOSE_SYSTEM_DIALOGS: { 2498 if (mView != null) { 2499 mView.onCloseSystemDialogs((String)msg.obj); 2500 } 2501 } break; 2502 case DISPATCH_DRAG_EVENT: 2503 case DISPATCH_DRAG_LOCATION_EVENT: { 2504 DragEvent event = (DragEvent)msg.obj; 2505 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2506 handleDragEvent(event); 2507 } break; 2508 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2509 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2510 } break; 2511 case UPDATE_CONFIGURATION: { 2512 Configuration config = (Configuration)msg.obj; 2513 if (config.isOtherSeqNewer(mLastConfiguration)) { 2514 config = mLastConfiguration; 2515 } 2516 updateConfiguration(config, false); 2517 } break; 2518 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2519 if (mView != null) { 2520 getAccessibilityInteractionController() 2521 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2522 } 2523 } break; 2524 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2525 if (mView != null) { 2526 getAccessibilityInteractionController() 2527 .perfromAccessibilityActionUiThread(msg); 2528 } 2529 } break; 2530 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2531 if (mView != null) { 2532 getAccessibilityInteractionController() 2533 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2534 } 2535 } break; 2536 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2537 if (mView != null) { 2538 getAccessibilityInteractionController() 2539 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2540 } 2541 } break; 2542 } 2543 } 2544 2545 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2546 if (mFinishedCallback != null) { 2547 Slog.w(TAG, "Received a new input event from the input queue but there is " 2548 + "already an unfinished input event in progress."); 2549 } 2550 2551 if (ViewDebug.DEBUG_LATENCY) { 2552 mInputEventReceiveTimeNanos = System.nanoTime(); 2553 mInputEventDeliverTimeNanos = 0; 2554 mInputEventDeliverPostImeTimeNanos = 0; 2555 } 2556 2557 mFinishedCallback = finishedCallback; 2558 } 2559 2560 private void finishInputEvent(InputEvent event, boolean handled) { 2561 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2562 2563 if (mFinishedCallback == null) { 2564 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2565 + "is finished but there is no input event actually in progress."); 2566 return; 2567 } 2568 2569 if (ViewDebug.DEBUG_LATENCY) { 2570 final long now = System.nanoTime(); 2571 final long eventTime = event.getEventTimeNano(); 2572 final StringBuilder msg = new StringBuilder(); 2573 msg.append("Latency: Spent "); 2574 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2575 msg.append("ms processing "); 2576 if (event instanceof KeyEvent) { 2577 final KeyEvent keyEvent = (KeyEvent)event; 2578 msg.append("key event, action="); 2579 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2580 } else { 2581 final MotionEvent motionEvent = (MotionEvent)event; 2582 msg.append("motion event, action="); 2583 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2584 msg.append(", historySize="); 2585 msg.append(motionEvent.getHistorySize()); 2586 } 2587 msg.append(", handled="); 2588 msg.append(handled); 2589 msg.append(", received at +"); 2590 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2591 if (mInputEventDeliverTimeNanos != 0) { 2592 msg.append("ms, delivered at +"); 2593 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2594 } 2595 if (mInputEventDeliverPostImeTimeNanos != 0) { 2596 msg.append("ms, delivered post IME at +"); 2597 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2598 } 2599 msg.append("ms, finished at +"); 2600 msg.append((now - eventTime) * 0.000001f); 2601 msg.append("ms."); 2602 Log.d(TAG, msg.toString()); 2603 } 2604 2605 mFinishedCallback.finished(handled); 2606 mFinishedCallback = null; 2607 } 2608 2609 /** 2610 * Something in the current window tells us we need to change the touch mode. For 2611 * example, we are not in touch mode, and the user touches the screen. 2612 * 2613 * If the touch mode has changed, tell the window manager, and handle it locally. 2614 * 2615 * @param inTouchMode Whether we want to be in touch mode. 2616 * @return True if the touch mode changed and focus changed was changed as a result 2617 */ 2618 boolean ensureTouchMode(boolean inTouchMode) { 2619 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2620 + "touch mode is " + mAttachInfo.mInTouchMode); 2621 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2622 2623 // tell the window manager 2624 try { 2625 sWindowSession.setInTouchMode(inTouchMode); 2626 } catch (RemoteException e) { 2627 throw new RuntimeException(e); 2628 } 2629 2630 // handle the change 2631 return ensureTouchModeLocally(inTouchMode); 2632 } 2633 2634 /** 2635 * Ensure that the touch mode for this window is set, and if it is changing, 2636 * take the appropriate action. 2637 * @param inTouchMode Whether we want to be in touch mode. 2638 * @return True if the touch mode changed and focus changed was changed as a result 2639 */ 2640 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2641 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2642 + "touch mode is " + mAttachInfo.mInTouchMode); 2643 2644 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2645 2646 mAttachInfo.mInTouchMode = inTouchMode; 2647 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2648 2649 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2650 } 2651 2652 private boolean enterTouchMode() { 2653 if (mView != null) { 2654 if (mView.hasFocus()) { 2655 // note: not relying on mFocusedView here because this could 2656 // be when the window is first being added, and mFocused isn't 2657 // set yet. 2658 final View focused = mView.findFocus(); 2659 if (focused != null && !focused.isFocusableInTouchMode()) { 2660 2661 final ViewGroup ancestorToTakeFocus = 2662 findAncestorToTakeFocusInTouchMode(focused); 2663 if (ancestorToTakeFocus != null) { 2664 // there is an ancestor that wants focus after its descendants that 2665 // is focusable in touch mode.. give it focus 2666 return ancestorToTakeFocus.requestFocus(); 2667 } else { 2668 // nothing appropriate to have focus in touch mode, clear it out 2669 mView.unFocus(); 2670 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2671 mFocusedView = null; 2672 return true; 2673 } 2674 } 2675 } 2676 } 2677 return false; 2678 } 2679 2680 2681 /** 2682 * Find an ancestor of focused that wants focus after its descendants and is 2683 * focusable in touch mode. 2684 * @param focused The currently focused view. 2685 * @return An appropriate view, or null if no such view exists. 2686 */ 2687 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2688 ViewParent parent = focused.getParent(); 2689 while (parent instanceof ViewGroup) { 2690 final ViewGroup vgParent = (ViewGroup) parent; 2691 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2692 && vgParent.isFocusableInTouchMode()) { 2693 return vgParent; 2694 } 2695 if (vgParent.isRootNamespace()) { 2696 return null; 2697 } else { 2698 parent = vgParent.getParent(); 2699 } 2700 } 2701 return null; 2702 } 2703 2704 private boolean leaveTouchMode() { 2705 if (mView != null) { 2706 if (mView.hasFocus()) { 2707 // i learned the hard way to not trust mFocusedView :) 2708 mFocusedView = mView.findFocus(); 2709 if (!(mFocusedView instanceof ViewGroup)) { 2710 // some view has focus, let it keep it 2711 return false; 2712 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2713 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2714 // some view group has focus, and doesn't prefer its children 2715 // over itself for focus, so let them keep it. 2716 return false; 2717 } 2718 } 2719 2720 // find the best view to give focus to in this brave new non-touch-mode 2721 // world 2722 final View focused = focusSearch(null, View.FOCUS_DOWN); 2723 if (focused != null) { 2724 return focused.requestFocus(View.FOCUS_DOWN); 2725 } 2726 } 2727 return false; 2728 } 2729 2730 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2731 if (ViewDebug.DEBUG_LATENCY) { 2732 mInputEventDeliverTimeNanos = System.nanoTime(); 2733 } 2734 2735 final boolean isTouchEvent = event.isTouchEvent(); 2736 if (mInputEventConsistencyVerifier != null) { 2737 if (isTouchEvent) { 2738 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2739 } else { 2740 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2741 } 2742 } 2743 2744 // If there is no view, then the event will not be handled. 2745 if (mView == null || !mAdded) { 2746 finishMotionEvent(event, sendDone, false); 2747 return; 2748 } 2749 2750 // Translate the pointer event for compatibility, if needed. 2751 if (mTranslator != null) { 2752 mTranslator.translateEventInScreenToAppWindow(event); 2753 } 2754 2755 // Enter touch mode on down or scroll. 2756 final int action = event.getAction(); 2757 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2758 ensureTouchMode(true); 2759 } 2760 2761 // Offset the scroll position. 2762 if (mCurScrollY != 0) { 2763 event.offsetLocation(0, mCurScrollY); 2764 } 2765 if (MEASURE_LATENCY) { 2766 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2767 } 2768 2769 // Remember the touch position for possible drag-initiation. 2770 if (isTouchEvent) { 2771 mLastTouchPoint.x = event.getRawX(); 2772 mLastTouchPoint.y = event.getRawY(); 2773 } 2774 2775 // Dispatch touch to view hierarchy. 2776 boolean handled = mView.dispatchPointerEvent(event); 2777 if (MEASURE_LATENCY) { 2778 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2779 } 2780 if (handled) { 2781 finishMotionEvent(event, sendDone, true); 2782 return; 2783 } 2784 2785 // Pointer event was unhandled. 2786 finishMotionEvent(event, sendDone, false); 2787 } 2788 2789 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2790 event.recycle(); 2791 if (sendDone) { 2792 finishInputEvent(event, handled); 2793 } 2794 //noinspection ConstantConditions 2795 if (LOCAL_LOGV || WATCH_POINTER) { 2796 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2797 Log.i(TAG, "Done dispatching!"); 2798 } 2799 } 2800 } 2801 2802 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2803 if (ViewDebug.DEBUG_LATENCY) { 2804 mInputEventDeliverTimeNanos = System.nanoTime(); 2805 } 2806 2807 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2808 2809 if (mInputEventConsistencyVerifier != null) { 2810 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2811 } 2812 2813 // If there is no view, then the event will not be handled. 2814 if (mView == null || !mAdded) { 2815 finishMotionEvent(event, sendDone, false); 2816 return; 2817 } 2818 2819 // Deliver the trackball event to the view. 2820 if (mView.dispatchTrackballEvent(event)) { 2821 // If we reach this, we delivered a trackball event to mView and 2822 // mView consumed it. Because we will not translate the trackball 2823 // event into a key event, touch mode will not exit, so we exit 2824 // touch mode here. 2825 ensureTouchMode(false); 2826 2827 finishMotionEvent(event, sendDone, true); 2828 mLastTrackballTime = Integer.MIN_VALUE; 2829 return; 2830 } 2831 2832 // Translate the trackball event into DPAD keys and try to deliver those. 2833 final TrackballAxis x = mTrackballAxisX; 2834 final TrackballAxis y = mTrackballAxisY; 2835 2836 long curTime = SystemClock.uptimeMillis(); 2837 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2838 // It has been too long since the last movement, 2839 // so restart at the beginning. 2840 x.reset(0); 2841 y.reset(0); 2842 mLastTrackballTime = curTime; 2843 } 2844 2845 final int action = event.getAction(); 2846 final int metaState = event.getMetaState(); 2847 switch (action) { 2848 case MotionEvent.ACTION_DOWN: 2849 x.reset(2); 2850 y.reset(2); 2851 deliverKeyEvent(new KeyEvent(curTime, curTime, 2852 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2853 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2854 InputDevice.SOURCE_KEYBOARD), false); 2855 break; 2856 case MotionEvent.ACTION_UP: 2857 x.reset(2); 2858 y.reset(2); 2859 deliverKeyEvent(new KeyEvent(curTime, curTime, 2860 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2861 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2862 InputDevice.SOURCE_KEYBOARD), false); 2863 break; 2864 } 2865 2866 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2867 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2868 + " move=" + event.getX() 2869 + " / Y=" + y.position + " step=" 2870 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2871 + " move=" + event.getY()); 2872 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2873 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2874 2875 // Generate DPAD events based on the trackball movement. 2876 // We pick the axis that has moved the most as the direction of 2877 // the DPAD. When we generate DPAD events for one axis, then the 2878 // other axis is reset -- we don't want to perform DPAD jumps due 2879 // to slight movements in the trackball when making major movements 2880 // along the other axis. 2881 int keycode = 0; 2882 int movement = 0; 2883 float accel = 1; 2884 if (xOff > yOff) { 2885 movement = x.generate((2/event.getXPrecision())); 2886 if (movement != 0) { 2887 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2888 : KeyEvent.KEYCODE_DPAD_LEFT; 2889 accel = x.acceleration; 2890 y.reset(2); 2891 } 2892 } else if (yOff > 0) { 2893 movement = y.generate((2/event.getYPrecision())); 2894 if (movement != 0) { 2895 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2896 : KeyEvent.KEYCODE_DPAD_UP; 2897 accel = y.acceleration; 2898 x.reset(2); 2899 } 2900 } 2901 2902 if (keycode != 0) { 2903 if (movement < 0) movement = -movement; 2904 int accelMovement = (int)(movement * accel); 2905 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2906 + " accelMovement=" + accelMovement 2907 + " accel=" + accel); 2908 if (accelMovement > movement) { 2909 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2910 + keycode); 2911 movement--; 2912 int repeatCount = accelMovement - movement; 2913 deliverKeyEvent(new KeyEvent(curTime, curTime, 2914 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2915 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2916 InputDevice.SOURCE_KEYBOARD), false); 2917 } 2918 while (movement > 0) { 2919 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2920 + keycode); 2921 movement--; 2922 curTime = SystemClock.uptimeMillis(); 2923 deliverKeyEvent(new KeyEvent(curTime, curTime, 2924 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2925 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2926 InputDevice.SOURCE_KEYBOARD), false); 2927 deliverKeyEvent(new KeyEvent(curTime, curTime, 2928 KeyEvent.ACTION_UP, keycode, 0, metaState, 2929 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2930 InputDevice.SOURCE_KEYBOARD), false); 2931 } 2932 mLastTrackballTime = curTime; 2933 } 2934 2935 // Unfortunately we can't tell whether the application consumed the keys, so 2936 // we always consider the trackball event handled. 2937 finishMotionEvent(event, sendDone, true); 2938 } 2939 2940 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2941 if (ViewDebug.DEBUG_LATENCY) { 2942 mInputEventDeliverTimeNanos = System.nanoTime(); 2943 } 2944 2945 if (mInputEventConsistencyVerifier != null) { 2946 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2947 } 2948 2949 final int source = event.getSource(); 2950 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2951 2952 // If there is no view, then the event will not be handled. 2953 if (mView == null || !mAdded) { 2954 if (isJoystick) { 2955 updateJoystickDirection(event, false); 2956 } 2957 finishMotionEvent(event, sendDone, false); 2958 return; 2959 } 2960 2961 // Deliver the event to the view. 2962 if (mView.dispatchGenericMotionEvent(event)) { 2963 if (isJoystick) { 2964 updateJoystickDirection(event, false); 2965 } 2966 finishMotionEvent(event, sendDone, true); 2967 return; 2968 } 2969 2970 if (isJoystick) { 2971 // Translate the joystick event into DPAD keys and try to deliver those. 2972 updateJoystickDirection(event, true); 2973 finishMotionEvent(event, sendDone, true); 2974 } else { 2975 finishMotionEvent(event, sendDone, false); 2976 } 2977 } 2978 2979 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 2980 final long time = event.getEventTime(); 2981 final int metaState = event.getMetaState(); 2982 final int deviceId = event.getDeviceId(); 2983 final int source = event.getSource(); 2984 2985 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 2986 if (xDirection == 0) { 2987 xDirection = joystickAxisValueToDirection(event.getX()); 2988 } 2989 2990 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 2991 if (yDirection == 0) { 2992 yDirection = joystickAxisValueToDirection(event.getY()); 2993 } 2994 2995 if (xDirection != mLastJoystickXDirection) { 2996 if (mLastJoystickXKeyCode != 0) { 2997 deliverKeyEvent(new KeyEvent(time, time, 2998 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 2999 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3000 mLastJoystickXKeyCode = 0; 3001 } 3002 3003 mLastJoystickXDirection = xDirection; 3004 3005 if (xDirection != 0 && synthesizeNewKeys) { 3006 mLastJoystickXKeyCode = xDirection > 0 3007 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3008 deliverKeyEvent(new KeyEvent(time, time, 3009 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3010 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3011 } 3012 } 3013 3014 if (yDirection != mLastJoystickYDirection) { 3015 if (mLastJoystickYKeyCode != 0) { 3016 deliverKeyEvent(new KeyEvent(time, time, 3017 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3018 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3019 mLastJoystickYKeyCode = 0; 3020 } 3021 3022 mLastJoystickYDirection = yDirection; 3023 3024 if (yDirection != 0 && synthesizeNewKeys) { 3025 mLastJoystickYKeyCode = yDirection > 0 3026 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3027 deliverKeyEvent(new KeyEvent(time, time, 3028 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3029 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3030 } 3031 } 3032 } 3033 3034 private static int joystickAxisValueToDirection(float value) { 3035 if (value >= 0.5f) { 3036 return 1; 3037 } else if (value <= -0.5f) { 3038 return -1; 3039 } else { 3040 return 0; 3041 } 3042 } 3043 3044 /** 3045 * Returns true if the key is used for keyboard navigation. 3046 * @param keyEvent The key event. 3047 * @return True if the key is used for keyboard navigation. 3048 */ 3049 private static boolean isNavigationKey(KeyEvent keyEvent) { 3050 switch (keyEvent.getKeyCode()) { 3051 case KeyEvent.KEYCODE_DPAD_LEFT: 3052 case KeyEvent.KEYCODE_DPAD_RIGHT: 3053 case KeyEvent.KEYCODE_DPAD_UP: 3054 case KeyEvent.KEYCODE_DPAD_DOWN: 3055 case KeyEvent.KEYCODE_DPAD_CENTER: 3056 case KeyEvent.KEYCODE_PAGE_UP: 3057 case KeyEvent.KEYCODE_PAGE_DOWN: 3058 case KeyEvent.KEYCODE_MOVE_HOME: 3059 case KeyEvent.KEYCODE_MOVE_END: 3060 case KeyEvent.KEYCODE_TAB: 3061 case KeyEvent.KEYCODE_SPACE: 3062 case KeyEvent.KEYCODE_ENTER: 3063 return true; 3064 } 3065 return false; 3066 } 3067 3068 /** 3069 * Returns true if the key is used for typing. 3070 * @param keyEvent The key event. 3071 * @return True if the key is used for typing. 3072 */ 3073 private static boolean isTypingKey(KeyEvent keyEvent) { 3074 return keyEvent.getUnicodeChar() > 0; 3075 } 3076 3077 /** 3078 * See if the key event means we should leave touch mode (and leave touch mode if so). 3079 * @param event The key event. 3080 * @return Whether this key event should be consumed (meaning the act of 3081 * leaving touch mode alone is considered the event). 3082 */ 3083 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3084 // Only relevant in touch mode. 3085 if (!mAttachInfo.mInTouchMode) { 3086 return false; 3087 } 3088 3089 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3090 final int action = event.getAction(); 3091 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3092 return false; 3093 } 3094 3095 // Don't leave touch mode if the IME told us not to. 3096 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3097 return false; 3098 } 3099 3100 // If the key can be used for keyboard navigation then leave touch mode 3101 // and select a focused view if needed (in ensureTouchMode). 3102 // When a new focused view is selected, we consume the navigation key because 3103 // navigation doesn't make much sense unless a view already has focus so 3104 // the key's purpose is to set focus. 3105 if (isNavigationKey(event)) { 3106 return ensureTouchMode(false); 3107 } 3108 3109 // If the key can be used for typing then leave touch mode 3110 // and select a focused view if needed (in ensureTouchMode). 3111 // Always allow the view to process the typing key. 3112 if (isTypingKey(event)) { 3113 ensureTouchMode(false); 3114 return false; 3115 } 3116 3117 return false; 3118 } 3119 3120 int enqueuePendingEvent(Object event, boolean sendDone) { 3121 int seq = mPendingEventSeq+1; 3122 if (seq < 0) seq = 0; 3123 mPendingEventSeq = seq; 3124 mPendingEvents.put(seq, event); 3125 return sendDone ? seq : -seq; 3126 } 3127 3128 Object retrievePendingEvent(int seq) { 3129 if (seq < 0) seq = -seq; 3130 Object event = mPendingEvents.get(seq); 3131 if (event != null) { 3132 mPendingEvents.remove(seq); 3133 } 3134 return event; 3135 } 3136 3137 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3138 if (ViewDebug.DEBUG_LATENCY) { 3139 mInputEventDeliverTimeNanos = System.nanoTime(); 3140 } 3141 3142 if (mInputEventConsistencyVerifier != null) { 3143 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3144 } 3145 3146 // If there is no view, then the event will not be handled. 3147 if (mView == null || !mAdded) { 3148 finishKeyEvent(event, sendDone, false); 3149 return; 3150 } 3151 3152 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3153 3154 // Perform predispatching before the IME. 3155 if (mView.dispatchKeyEventPreIme(event)) { 3156 finishKeyEvent(event, sendDone, true); 3157 return; 3158 } 3159 3160 // Dispatch to the IME before propagating down the view hierarchy. 3161 // The IME will eventually call back into handleFinishedEvent. 3162 if (mLastWasImTarget) { 3163 InputMethodManager imm = InputMethodManager.peekInstance(); 3164 if (imm != null) { 3165 int seq = enqueuePendingEvent(event, sendDone); 3166 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3167 + seq + " event=" + event); 3168 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3169 return; 3170 } 3171 } 3172 3173 // Not dispatching to IME, continue with post IME actions. 3174 deliverKeyEventPostIme(event, sendDone); 3175 } 3176 3177 private void handleFinishedEvent(int seq, boolean handled) { 3178 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3179 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3180 + " handled=" + handled + " event=" + event); 3181 if (event != null) { 3182 final boolean sendDone = seq >= 0; 3183 if (handled) { 3184 finishKeyEvent(event, sendDone, true); 3185 } else { 3186 deliverKeyEventPostIme(event, sendDone); 3187 } 3188 } 3189 } 3190 3191 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3192 if (ViewDebug.DEBUG_LATENCY) { 3193 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3194 } 3195 3196 // If the view went away, then the event will not be handled. 3197 if (mView == null || !mAdded) { 3198 finishKeyEvent(event, sendDone, false); 3199 return; 3200 } 3201 3202 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3203 if (checkForLeavingTouchModeAndConsume(event)) { 3204 finishKeyEvent(event, sendDone, true); 3205 return; 3206 } 3207 3208 // Make sure the fallback event policy sees all keys that will be delivered to the 3209 // view hierarchy. 3210 mFallbackEventHandler.preDispatchKeyEvent(event); 3211 3212 // Deliver the key to the view hierarchy. 3213 if (mView.dispatchKeyEvent(event)) { 3214 finishKeyEvent(event, sendDone, true); 3215 return; 3216 } 3217 3218 // If the Control modifier is held, try to interpret the key as a shortcut. 3219 if (event.getAction() == KeyEvent.ACTION_UP 3220 && event.isCtrlPressed() 3221 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3222 if (mView.dispatchKeyShortcutEvent(event)) { 3223 finishKeyEvent(event, sendDone, true); 3224 return; 3225 } 3226 } 3227 3228 // Apply the fallback event policy. 3229 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3230 finishKeyEvent(event, sendDone, true); 3231 return; 3232 } 3233 3234 // Handle automatic focus changes. 3235 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3236 int direction = 0; 3237 switch (event.getKeyCode()) { 3238 case KeyEvent.KEYCODE_DPAD_LEFT: 3239 if (event.hasNoModifiers()) { 3240 direction = View.FOCUS_LEFT; 3241 } 3242 break; 3243 case KeyEvent.KEYCODE_DPAD_RIGHT: 3244 if (event.hasNoModifiers()) { 3245 direction = View.FOCUS_RIGHT; 3246 } 3247 break; 3248 case KeyEvent.KEYCODE_DPAD_UP: 3249 if (event.hasNoModifiers()) { 3250 direction = View.FOCUS_UP; 3251 } 3252 break; 3253 case KeyEvent.KEYCODE_DPAD_DOWN: 3254 if (event.hasNoModifiers()) { 3255 direction = View.FOCUS_DOWN; 3256 } 3257 break; 3258 case KeyEvent.KEYCODE_TAB: 3259 if (event.hasNoModifiers()) { 3260 direction = View.FOCUS_FORWARD; 3261 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3262 direction = View.FOCUS_BACKWARD; 3263 } 3264 break; 3265 } 3266 3267 if (direction != 0) { 3268 View focused = mView != null ? mView.findFocus() : null; 3269 if (focused != null) { 3270 View v = focused.focusSearch(direction); 3271 if (v != null && v != focused) { 3272 // do the math the get the interesting rect 3273 // of previous focused into the coord system of 3274 // newly focused view 3275 focused.getFocusedRect(mTempRect); 3276 if (mView instanceof ViewGroup) { 3277 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3278 focused, mTempRect); 3279 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3280 v, mTempRect); 3281 } 3282 if (v.requestFocus(direction, mTempRect)) { 3283 playSoundEffect( 3284 SoundEffectConstants.getContantForFocusDirection(direction)); 3285 finishKeyEvent(event, sendDone, true); 3286 return; 3287 } 3288 } 3289 3290 // Give the focused view a last chance to handle the dpad key. 3291 if (mView.dispatchUnhandledMove(focused, direction)) { 3292 finishKeyEvent(event, sendDone, true); 3293 return; 3294 } 3295 } 3296 } 3297 } 3298 3299 // Key was unhandled. 3300 finishKeyEvent(event, sendDone, false); 3301 } 3302 3303 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3304 if (sendDone) { 3305 finishInputEvent(event, handled); 3306 } 3307 } 3308 3309 /* drag/drop */ 3310 void setLocalDragState(Object obj) { 3311 mLocalDragState = obj; 3312 } 3313 3314 private void handleDragEvent(DragEvent event) { 3315 // From the root, only drag start/end/location are dispatched. entered/exited 3316 // are determined and dispatched by the viewgroup hierarchy, who then report 3317 // that back here for ultimate reporting back to the framework. 3318 if (mView != null && mAdded) { 3319 final int what = event.mAction; 3320 3321 if (what == DragEvent.ACTION_DRAG_EXITED) { 3322 // A direct EXITED event means that the window manager knows we've just crossed 3323 // a window boundary, so the current drag target within this one must have 3324 // just been exited. Send it the usual notifications and then we're done 3325 // for now. 3326 mView.dispatchDragEvent(event); 3327 } else { 3328 // Cache the drag description when the operation starts, then fill it in 3329 // on subsequent calls as a convenience 3330 if (what == DragEvent.ACTION_DRAG_STARTED) { 3331 mCurrentDragView = null; // Start the current-recipient tracking 3332 mDragDescription = event.mClipDescription; 3333 } else { 3334 event.mClipDescription = mDragDescription; 3335 } 3336 3337 // For events with a [screen] location, translate into window coordinates 3338 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3339 mDragPoint.set(event.mX, event.mY); 3340 if (mTranslator != null) { 3341 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3342 } 3343 3344 if (mCurScrollY != 0) { 3345 mDragPoint.offset(0, mCurScrollY); 3346 } 3347 3348 event.mX = mDragPoint.x; 3349 event.mY = mDragPoint.y; 3350 } 3351 3352 // Remember who the current drag target is pre-dispatch 3353 final View prevDragView = mCurrentDragView; 3354 3355 // Now dispatch the drag/drop event 3356 boolean result = mView.dispatchDragEvent(event); 3357 3358 // If we changed apparent drag target, tell the OS about it 3359 if (prevDragView != mCurrentDragView) { 3360 try { 3361 if (prevDragView != null) { 3362 sWindowSession.dragRecipientExited(mWindow); 3363 } 3364 if (mCurrentDragView != null) { 3365 sWindowSession.dragRecipientEntered(mWindow); 3366 } 3367 } catch (RemoteException e) { 3368 Slog.e(TAG, "Unable to note drag target change"); 3369 } 3370 } 3371 3372 // Report the drop result when we're done 3373 if (what == DragEvent.ACTION_DROP) { 3374 mDragDescription = null; 3375 try { 3376 Log.i(TAG, "Reporting drop result: " + result); 3377 sWindowSession.reportDropResult(mWindow, result); 3378 } catch (RemoteException e) { 3379 Log.e(TAG, "Unable to report drop result"); 3380 } 3381 } 3382 3383 // When the drag operation ends, release any local state object 3384 // that may have been in use 3385 if (what == DragEvent.ACTION_DRAG_ENDED) { 3386 setLocalDragState(null); 3387 } 3388 } 3389 } 3390 event.recycle(); 3391 } 3392 3393 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3394 if (mView == null) return; 3395 if (mAttachInfo != null) { 3396 mAttachInfo.mSystemUiVisibility = visibility; 3397 } 3398 mView.dispatchSystemUiVisibilityChanged(visibility); 3399 } 3400 3401 public void getLastTouchPoint(Point outLocation) { 3402 outLocation.x = (int) mLastTouchPoint.x; 3403 outLocation.y = (int) mLastTouchPoint.y; 3404 } 3405 3406 public void setDragFocus(View newDragTarget) { 3407 if (mCurrentDragView != newDragTarget) { 3408 mCurrentDragView = newDragTarget; 3409 } 3410 } 3411 3412 private AudioManager getAudioManager() { 3413 if (mView == null) { 3414 throw new IllegalStateException("getAudioManager called when there is no mView"); 3415 } 3416 if (mAudioManager == null) { 3417 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3418 } 3419 return mAudioManager; 3420 } 3421 3422 public AccessibilityInteractionController getAccessibilityInteractionController() { 3423 if (mView == null) { 3424 throw new IllegalStateException("getAccessibilityInteractionController" 3425 + " called when there is no mView"); 3426 } 3427 if (mAccessibilityInteractionContrtoller == null) { 3428 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3429 } 3430 return mAccessibilityInteractionContrtoller; 3431 } 3432 3433 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3434 boolean insetsPending) throws RemoteException { 3435 3436 float appScale = mAttachInfo.mApplicationScale; 3437 boolean restore = false; 3438 if (params != null && mTranslator != null) { 3439 restore = true; 3440 params.backup(); 3441 mTranslator.translateWindowLayout(params); 3442 } 3443 if (params != null) { 3444 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3445 } 3446 mPendingConfiguration.seq = 0; 3447 //Log.d(TAG, ">>>>>> CALLING relayout"); 3448 int relayoutResult = sWindowSession.relayout( 3449 mWindow, params, 3450 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3451 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3452 viewVisibility, insetsPending, mWinFrame, 3453 mPendingContentInsets, mPendingVisibleInsets, 3454 mPendingConfiguration, mSurface); 3455 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3456 if (restore) { 3457 params.restore(); 3458 } 3459 3460 if (mTranslator != null) { 3461 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3462 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3463 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3464 } 3465 return relayoutResult; 3466 } 3467 3468 /** 3469 * {@inheritDoc} 3470 */ 3471 public void playSoundEffect(int effectId) { 3472 checkThread(); 3473 3474 try { 3475 final AudioManager audioManager = getAudioManager(); 3476 3477 switch (effectId) { 3478 case SoundEffectConstants.CLICK: 3479 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3480 return; 3481 case SoundEffectConstants.NAVIGATION_DOWN: 3482 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3483 return; 3484 case SoundEffectConstants.NAVIGATION_LEFT: 3485 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3486 return; 3487 case SoundEffectConstants.NAVIGATION_RIGHT: 3488 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3489 return; 3490 case SoundEffectConstants.NAVIGATION_UP: 3491 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3492 return; 3493 default: 3494 throw new IllegalArgumentException("unknown effect id " + effectId + 3495 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3496 } 3497 } catch (IllegalStateException e) { 3498 // Exception thrown by getAudioManager() when mView is null 3499 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3500 e.printStackTrace(); 3501 } 3502 } 3503 3504 /** 3505 * {@inheritDoc} 3506 */ 3507 public boolean performHapticFeedback(int effectId, boolean always) { 3508 try { 3509 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3510 } catch (RemoteException e) { 3511 return false; 3512 } 3513 } 3514 3515 /** 3516 * {@inheritDoc} 3517 */ 3518 public View focusSearch(View focused, int direction) { 3519 checkThread(); 3520 if (!(mView instanceof ViewGroup)) { 3521 return null; 3522 } 3523 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3524 } 3525 3526 public void debug() { 3527 mView.debug(); 3528 } 3529 3530 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3531 if (mView != null) { 3532 getGfxInfo(mView, info); 3533 } else { 3534 info[0] = info[1] = 0; 3535 } 3536 } 3537 3538 private void getGfxInfo(View view, int[] info) { 3539 DisplayList displayList = view.mDisplayList; 3540 info[0]++; 3541 if (displayList != null) { 3542 info[1] += displayList.getSize(); 3543 } 3544 3545 if (view instanceof ViewGroup) { 3546 ViewGroup group = (ViewGroup) view; 3547 3548 int count = group.getChildCount(); 3549 for (int i = 0; i < count; i++) { 3550 getGfxInfo(group.getChildAt(i), info); 3551 } 3552 } 3553 } 3554 3555 public void die(boolean immediate) { 3556 if (immediate) { 3557 doDie(); 3558 } else { 3559 sendEmptyMessage(DIE); 3560 } 3561 } 3562 3563 void doDie() { 3564 checkThread(); 3565 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3566 synchronized (this) { 3567 if (mAdded && !mFirst) { 3568 destroyHardwareRenderer(); 3569 3570 int viewVisibility = mView.getVisibility(); 3571 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3572 if (mWindowAttributesChanged || viewVisibilityChanged) { 3573 // If layout params have been changed, first give them 3574 // to the window manager to make sure it has the correct 3575 // animation info. 3576 try { 3577 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3578 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3579 sWindowSession.finishDrawing(mWindow); 3580 } 3581 } catch (RemoteException e) { 3582 } 3583 } 3584 3585 mSurface.release(); 3586 } 3587 if (mAdded) { 3588 mAdded = false; 3589 dispatchDetachedFromWindow(); 3590 } 3591 } 3592 } 3593 3594 public void requestUpdateConfiguration(Configuration config) { 3595 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3596 sendMessage(msg); 3597 } 3598 3599 private void destroyHardwareRenderer() { 3600 if (mAttachInfo.mHardwareRenderer != null) { 3601 mAttachInfo.mHardwareRenderer.destroy(true); 3602 mAttachInfo.mHardwareRenderer = null; 3603 mAttachInfo.mHardwareAccelerated = false; 3604 } 3605 } 3606 3607 public void dispatchFinishedEvent(int seq, boolean handled) { 3608 Message msg = obtainMessage(FINISHED_EVENT); 3609 msg.arg1 = seq; 3610 msg.arg2 = handled ? 1 : 0; 3611 sendMessage(msg); 3612 } 3613 3614 public void dispatchResized(int w, int h, Rect coveredInsets, 3615 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3616 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3617 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3618 + " visibleInsets=" + visibleInsets.toShortString() 3619 + " reportDraw=" + reportDraw); 3620 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3621 if (mTranslator != null) { 3622 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3623 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3624 w *= mTranslator.applicationInvertedScale; 3625 h *= mTranslator.applicationInvertedScale; 3626 } 3627 msg.arg1 = w; 3628 msg.arg2 = h; 3629 ResizedInfo ri = new ResizedInfo(); 3630 ri.coveredInsets = new Rect(coveredInsets); 3631 ri.visibleInsets = new Rect(visibleInsets); 3632 ri.newConfig = newConfig; 3633 msg.obj = ri; 3634 sendMessage(msg); 3635 } 3636 3637 private long mInputEventReceiveTimeNanos; 3638 private long mInputEventDeliverTimeNanos; 3639 private long mInputEventDeliverPostImeTimeNanos; 3640 private InputQueue.FinishedCallback mFinishedCallback; 3641 3642 private final InputHandler mInputHandler = new InputHandler() { 3643 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3644 startInputEvent(finishedCallback); 3645 dispatchKey(event, true); 3646 } 3647 3648 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3649 startInputEvent(finishedCallback); 3650 dispatchMotion(event, true); 3651 } 3652 }; 3653 3654 public void dispatchKey(KeyEvent event) { 3655 dispatchKey(event, false); 3656 } 3657 3658 private void dispatchKey(KeyEvent event, boolean sendDone) { 3659 //noinspection ConstantConditions 3660 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3661 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3662 if (DBG) Log.d("keydisp", "==================================================="); 3663 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3664 3665 debug(); 3666 3667 if (DBG) Log.d("keydisp", "==================================================="); 3668 } 3669 } 3670 3671 Message msg = obtainMessage(DISPATCH_KEY); 3672 msg.obj = event; 3673 msg.arg1 = sendDone ? 1 : 0; 3674 3675 if (LOCAL_LOGV) Log.v( 3676 TAG, "sending key " + event + " to " + mView); 3677 3678 sendMessageAtTime(msg, event.getEventTime()); 3679 } 3680 3681 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3682 int source = event.getSource(); 3683 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3684 dispatchPointer(event, sendDone); 3685 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3686 dispatchTrackball(event, sendDone); 3687 } else { 3688 dispatchGenericMotion(event, sendDone); 3689 } 3690 } 3691 3692 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3693 Message msg = obtainMessage(DISPATCH_POINTER); 3694 msg.obj = event; 3695 msg.arg1 = sendDone ? 1 : 0; 3696 sendMessageAtTime(msg, event.getEventTime()); 3697 } 3698 3699 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3700 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3701 msg.obj = event; 3702 msg.arg1 = sendDone ? 1 : 0; 3703 sendMessageAtTime(msg, event.getEventTime()); 3704 } 3705 3706 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3707 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3708 msg.obj = event; 3709 msg.arg1 = sendDone ? 1 : 0; 3710 sendMessageAtTime(msg, event.getEventTime()); 3711 } 3712 3713 public void dispatchAppVisibility(boolean visible) { 3714 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3715 msg.arg1 = visible ? 1 : 0; 3716 sendMessage(msg); 3717 } 3718 3719 public void dispatchGetNewSurface() { 3720 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3721 sendMessage(msg); 3722 } 3723 3724 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3725 Message msg = Message.obtain(); 3726 msg.what = WINDOW_FOCUS_CHANGED; 3727 msg.arg1 = hasFocus ? 1 : 0; 3728 msg.arg2 = inTouchMode ? 1 : 0; 3729 sendMessage(msg); 3730 } 3731 3732 public void dispatchCloseSystemDialogs(String reason) { 3733 Message msg = Message.obtain(); 3734 msg.what = CLOSE_SYSTEM_DIALOGS; 3735 msg.obj = reason; 3736 sendMessage(msg); 3737 } 3738 3739 public void dispatchDragEvent(DragEvent event) { 3740 final int what; 3741 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3742 what = DISPATCH_DRAG_LOCATION_EVENT; 3743 removeMessages(what); 3744 } else { 3745 what = DISPATCH_DRAG_EVENT; 3746 } 3747 Message msg = obtainMessage(what, event); 3748 sendMessage(msg); 3749 } 3750 3751 public void dispatchSystemUiVisibilityChanged(int visibility) { 3752 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3753 } 3754 3755 /** 3756 * The window is getting focus so if there is anything focused/selected 3757 * send an {@link AccessibilityEvent} to announce that. 3758 */ 3759 private void sendAccessibilityEvents() { 3760 if (!mAccessibilityManager.isEnabled()) { 3761 return; 3762 } 3763 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3764 View focusedView = mView.findFocus(); 3765 if (focusedView != null && focusedView != mView) { 3766 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3767 } 3768 } 3769 3770 /** 3771 * Post a callback to send a 3772 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3773 * This event is send at most once every 3774 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3775 */ 3776 private void postSendWindowContentChangedCallback() { 3777 if (mSendWindowContentChangedAccessibilityEvent == null) { 3778 mSendWindowContentChangedAccessibilityEvent = 3779 new SendWindowContentChangedAccessibilityEvent(); 3780 } 3781 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3782 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3783 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3784 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3785 } 3786 } 3787 3788 /** 3789 * Remove a posted callback to send a 3790 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3791 */ 3792 private void removeSendWindowContentChangedCallback() { 3793 if (mSendWindowContentChangedAccessibilityEvent != null) { 3794 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3795 } 3796 } 3797 3798 public boolean showContextMenuForChild(View originalView) { 3799 return false; 3800 } 3801 3802 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3803 return null; 3804 } 3805 3806 public void createContextMenu(ContextMenu menu) { 3807 } 3808 3809 public void childDrawableStateChanged(View child) { 3810 } 3811 3812 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3813 if (mView == null) { 3814 return false; 3815 } 3816 mAccessibilityManager.sendAccessibilityEvent(event); 3817 return true; 3818 } 3819 3820 void checkThread() { 3821 if (mThread != Thread.currentThread()) { 3822 throw new CalledFromWrongThreadException( 3823 "Only the original thread that created a view hierarchy can touch its views."); 3824 } 3825 } 3826 3827 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3828 // ViewAncestor never intercepts touch event, so this can be a no-op 3829 } 3830 3831 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3832 boolean immediate) { 3833 return scrollToRectOrFocus(rectangle, immediate); 3834 } 3835 3836 class TakenSurfaceHolder extends BaseSurfaceHolder { 3837 @Override 3838 public boolean onAllowLockCanvas() { 3839 return mDrawingAllowed; 3840 } 3841 3842 @Override 3843 public void onRelayoutContainer() { 3844 // Not currently interesting -- from changing between fixed and layout size. 3845 } 3846 3847 public void setFormat(int format) { 3848 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3849 } 3850 3851 public void setType(int type) { 3852 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3853 } 3854 3855 @Override 3856 public void onUpdateSurface() { 3857 // We take care of format and type changes on our own. 3858 throw new IllegalStateException("Shouldn't be here"); 3859 } 3860 3861 public boolean isCreating() { 3862 return mIsCreating; 3863 } 3864 3865 @Override 3866 public void setFixedSize(int width, int height) { 3867 throw new UnsupportedOperationException( 3868 "Currently only support sizing from layout"); 3869 } 3870 3871 public void setKeepScreenOn(boolean screenOn) { 3872 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3873 } 3874 } 3875 3876 static class InputMethodCallback extends IInputMethodCallback.Stub { 3877 private WeakReference<ViewRootImpl> mViewAncestor; 3878 3879 public InputMethodCallback(ViewRootImpl viewAncestor) { 3880 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3881 } 3882 3883 public void finishedEvent(int seq, boolean handled) { 3884 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3885 if (viewAncestor != null) { 3886 viewAncestor.dispatchFinishedEvent(seq, handled); 3887 } 3888 } 3889 3890 public void sessionCreated(IInputMethodSession session) { 3891 // Stub -- not for use in the client. 3892 } 3893 } 3894 3895 static class W extends IWindow.Stub { 3896 private final WeakReference<ViewRootImpl> mViewAncestor; 3897 3898 W(ViewRootImpl viewAncestor) { 3899 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3900 } 3901 3902 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3903 boolean reportDraw, Configuration newConfig) { 3904 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3905 if (viewAncestor != null) { 3906 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3907 newConfig); 3908 } 3909 } 3910 3911 public void dispatchAppVisibility(boolean visible) { 3912 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3913 if (viewAncestor != null) { 3914 viewAncestor.dispatchAppVisibility(visible); 3915 } 3916 } 3917 3918 public void dispatchGetNewSurface() { 3919 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3920 if (viewAncestor != null) { 3921 viewAncestor.dispatchGetNewSurface(); 3922 } 3923 } 3924 3925 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3926 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3927 if (viewAncestor != null) { 3928 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3929 } 3930 } 3931 3932 private static int checkCallingPermission(String permission) { 3933 try { 3934 return ActivityManagerNative.getDefault().checkPermission( 3935 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3936 } catch (RemoteException e) { 3937 return PackageManager.PERMISSION_DENIED; 3938 } 3939 } 3940 3941 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3942 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3943 if (viewAncestor != null) { 3944 final View view = viewAncestor.mView; 3945 if (view != null) { 3946 if (checkCallingPermission(Manifest.permission.DUMP) != 3947 PackageManager.PERMISSION_GRANTED) { 3948 throw new SecurityException("Insufficient permissions to invoke" 3949 + " executeCommand() from pid=" + Binder.getCallingPid() 3950 + ", uid=" + Binder.getCallingUid()); 3951 } 3952 3953 OutputStream clientStream = null; 3954 try { 3955 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3956 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3957 } catch (IOException e) { 3958 e.printStackTrace(); 3959 } finally { 3960 if (clientStream != null) { 3961 try { 3962 clientStream.close(); 3963 } catch (IOException e) { 3964 e.printStackTrace(); 3965 } 3966 } 3967 } 3968 } 3969 } 3970 } 3971 3972 public void closeSystemDialogs(String reason) { 3973 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3974 if (viewAncestor != null) { 3975 viewAncestor.dispatchCloseSystemDialogs(reason); 3976 } 3977 } 3978 3979 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 3980 boolean sync) { 3981 if (sync) { 3982 try { 3983 sWindowSession.wallpaperOffsetsComplete(asBinder()); 3984 } catch (RemoteException e) { 3985 } 3986 } 3987 } 3988 3989 public void dispatchWallpaperCommand(String action, int x, int y, 3990 int z, Bundle extras, boolean sync) { 3991 if (sync) { 3992 try { 3993 sWindowSession.wallpaperCommandComplete(asBinder(), null); 3994 } catch (RemoteException e) { 3995 } 3996 } 3997 } 3998 3999 /* Drag/drop */ 4000 public void dispatchDragEvent(DragEvent event) { 4001 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4002 if (viewAncestor != null) { 4003 viewAncestor.dispatchDragEvent(event); 4004 } 4005 } 4006 4007 public void dispatchSystemUiVisibilityChanged(int visibility) { 4008 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4009 if (viewAncestor != null) { 4010 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4011 } 4012 } 4013 } 4014 4015 /** 4016 * Maintains state information for a single trackball axis, generating 4017 * discrete (DPAD) movements based on raw trackball motion. 4018 */ 4019 static final class TrackballAxis { 4020 /** 4021 * The maximum amount of acceleration we will apply. 4022 */ 4023 static final float MAX_ACCELERATION = 20; 4024 4025 /** 4026 * The maximum amount of time (in milliseconds) between events in order 4027 * for us to consider the user to be doing fast trackball movements, 4028 * and thus apply an acceleration. 4029 */ 4030 static final long FAST_MOVE_TIME = 150; 4031 4032 /** 4033 * Scaling factor to the time (in milliseconds) between events to how 4034 * much to multiple/divide the current acceleration. When movement 4035 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4036 * FAST_MOVE_TIME it divides it. 4037 */ 4038 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4039 4040 float position; 4041 float absPosition; 4042 float acceleration = 1; 4043 long lastMoveTime = 0; 4044 int step; 4045 int dir; 4046 int nonAccelMovement; 4047 4048 void reset(int _step) { 4049 position = 0; 4050 acceleration = 1; 4051 lastMoveTime = 0; 4052 step = _step; 4053 dir = 0; 4054 } 4055 4056 /** 4057 * Add trackball movement into the state. If the direction of movement 4058 * has been reversed, the state is reset before adding the 4059 * movement (so that you don't have to compensate for any previously 4060 * collected movement before see the result of the movement in the 4061 * new direction). 4062 * 4063 * @return Returns the absolute value of the amount of movement 4064 * collected so far. 4065 */ 4066 float collect(float off, long time, String axis) { 4067 long normTime; 4068 if (off > 0) { 4069 normTime = (long)(off * FAST_MOVE_TIME); 4070 if (dir < 0) { 4071 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4072 position = 0; 4073 step = 0; 4074 acceleration = 1; 4075 lastMoveTime = 0; 4076 } 4077 dir = 1; 4078 } else if (off < 0) { 4079 normTime = (long)((-off) * FAST_MOVE_TIME); 4080 if (dir > 0) { 4081 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4082 position = 0; 4083 step = 0; 4084 acceleration = 1; 4085 lastMoveTime = 0; 4086 } 4087 dir = -1; 4088 } else { 4089 normTime = 0; 4090 } 4091 4092 // The number of milliseconds between each movement that is 4093 // considered "normal" and will not result in any acceleration 4094 // or deceleration, scaled by the offset we have here. 4095 if (normTime > 0) { 4096 long delta = time - lastMoveTime; 4097 lastMoveTime = time; 4098 float acc = acceleration; 4099 if (delta < normTime) { 4100 // The user is scrolling rapidly, so increase acceleration. 4101 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4102 if (scale > 1) acc *= scale; 4103 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4104 + off + " normTime=" + normTime + " delta=" + delta 4105 + " scale=" + scale + " acc=" + acc); 4106 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4107 } else { 4108 // The user is scrolling slowly, so decrease acceleration. 4109 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4110 if (scale > 1) acc /= scale; 4111 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4112 + off + " normTime=" + normTime + " delta=" + delta 4113 + " scale=" + scale + " acc=" + acc); 4114 acceleration = acc > 1 ? acc : 1; 4115 } 4116 } 4117 position += off; 4118 return (absPosition = Math.abs(position)); 4119 } 4120 4121 /** 4122 * Generate the number of discrete movement events appropriate for 4123 * the currently collected trackball movement. 4124 * 4125 * @param precision The minimum movement required to generate the 4126 * first discrete movement. 4127 * 4128 * @return Returns the number of discrete movements, either positive 4129 * or negative, or 0 if there is not enough trackball movement yet 4130 * for a discrete movement. 4131 */ 4132 int generate(float precision) { 4133 int movement = 0; 4134 nonAccelMovement = 0; 4135 do { 4136 final int dir = position >= 0 ? 1 : -1; 4137 switch (step) { 4138 // If we are going to execute the first step, then we want 4139 // to do this as soon as possible instead of waiting for 4140 // a full movement, in order to make things look responsive. 4141 case 0: 4142 if (absPosition < precision) { 4143 return movement; 4144 } 4145 movement += dir; 4146 nonAccelMovement += dir; 4147 step = 1; 4148 break; 4149 // If we have generated the first movement, then we need 4150 // to wait for the second complete trackball motion before 4151 // generating the second discrete movement. 4152 case 1: 4153 if (absPosition < 2) { 4154 return movement; 4155 } 4156 movement += dir; 4157 nonAccelMovement += dir; 4158 position += dir > 0 ? -2 : 2; 4159 absPosition = Math.abs(position); 4160 step = 2; 4161 break; 4162 // After the first two, we generate discrete movements 4163 // consistently with the trackball, applying an acceleration 4164 // if the trackball is moving quickly. This is a simple 4165 // acceleration on top of what we already compute based 4166 // on how quickly the wheel is being turned, to apply 4167 // a longer increasing acceleration to continuous movement 4168 // in one direction. 4169 default: 4170 if (absPosition < 1) { 4171 return movement; 4172 } 4173 movement += dir; 4174 position += dir >= 0 ? -1 : 1; 4175 absPosition = Math.abs(position); 4176 float acc = acceleration; 4177 acc *= 1.1f; 4178 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4179 break; 4180 } 4181 } while (true); 4182 } 4183 } 4184 4185 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4186 public CalledFromWrongThreadException(String msg) { 4187 super(msg); 4188 } 4189 } 4190 4191 private SurfaceHolder mHolder = new SurfaceHolder() { 4192 // we only need a SurfaceHolder for opengl. it would be nice 4193 // to implement everything else though, especially the callback 4194 // support (opengl doesn't make use of it right now, but eventually 4195 // will). 4196 public Surface getSurface() { 4197 return mSurface; 4198 } 4199 4200 public boolean isCreating() { 4201 return false; 4202 } 4203 4204 public void addCallback(Callback callback) { 4205 } 4206 4207 public void removeCallback(Callback callback) { 4208 } 4209 4210 public void setFixedSize(int width, int height) { 4211 } 4212 4213 public void setSizeFromLayout() { 4214 } 4215 4216 public void setFormat(int format) { 4217 } 4218 4219 public void setType(int type) { 4220 } 4221 4222 public void setKeepScreenOn(boolean screenOn) { 4223 } 4224 4225 public Canvas lockCanvas() { 4226 return null; 4227 } 4228 4229 public Canvas lockCanvas(Rect dirty) { 4230 return null; 4231 } 4232 4233 public void unlockCanvasAndPost(Canvas canvas) { 4234 } 4235 public Rect getSurfaceFrame() { 4236 return null; 4237 } 4238 }; 4239 4240 static RunQueue getRunQueue() { 4241 RunQueue rq = sRunQueues.get(); 4242 if (rq != null) { 4243 return rq; 4244 } 4245 rq = new RunQueue(); 4246 sRunQueues.set(rq); 4247 return rq; 4248 } 4249 4250 /** 4251 * @hide 4252 */ 4253 static final class RunQueue { 4254 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4255 4256 void post(Runnable action) { 4257 postDelayed(action, 0); 4258 } 4259 4260 void postDelayed(Runnable action, long delayMillis) { 4261 HandlerAction handlerAction = new HandlerAction(); 4262 handlerAction.action = action; 4263 handlerAction.delay = delayMillis; 4264 4265 synchronized (mActions) { 4266 mActions.add(handlerAction); 4267 } 4268 } 4269 4270 void removeCallbacks(Runnable action) { 4271 final HandlerAction handlerAction = new HandlerAction(); 4272 handlerAction.action = action; 4273 4274 synchronized (mActions) { 4275 final ArrayList<HandlerAction> actions = mActions; 4276 4277 while (actions.remove(handlerAction)) { 4278 // Keep going 4279 } 4280 } 4281 } 4282 4283 void executeActions(Handler handler) { 4284 synchronized (mActions) { 4285 final ArrayList<HandlerAction> actions = mActions; 4286 final int count = actions.size(); 4287 4288 for (int i = 0; i < count; i++) { 4289 final HandlerAction handlerAction = actions.get(i); 4290 handler.postDelayed(handlerAction.action, handlerAction.delay); 4291 } 4292 4293 actions.clear(); 4294 } 4295 } 4296 4297 private static class HandlerAction { 4298 Runnable action; 4299 long delay; 4300 4301 @Override 4302 public boolean equals(Object o) { 4303 if (this == o) return true; 4304 if (o == null || getClass() != o.getClass()) return false; 4305 4306 HandlerAction that = (HandlerAction) o; 4307 return !(action != null ? !action.equals(that.action) : that.action != null); 4308 4309 } 4310 4311 @Override 4312 public int hashCode() { 4313 int result = action != null ? action.hashCode() : 0; 4314 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4315 return result; 4316 } 4317 } 4318 } 4319 4320 /** 4321 * Class for managing the accessibility interaction connection 4322 * based on the global accessibility state. 4323 */ 4324 final class AccessibilityInteractionConnectionManager 4325 implements AccessibilityStateChangeListener { 4326 public void onAccessibilityStateChanged(boolean enabled) { 4327 if (enabled) { 4328 ensureConnection(); 4329 } else { 4330 ensureNoConnection(); 4331 } 4332 } 4333 4334 public void ensureConnection() { 4335 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4336 if (!registered) { 4337 mAttachInfo.mAccessibilityWindowId = 4338 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4339 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4340 } 4341 } 4342 4343 public void ensureNoConnection() { 4344 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4345 if (registered) { 4346 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4347 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4348 } 4349 } 4350 } 4351 4352 /** 4353 * This class is an interface this ViewAncestor provides to the 4354 * AccessibilityManagerService to the latter can interact with 4355 * the view hierarchy in this ViewAncestor. 4356 */ 4357 final class AccessibilityInteractionConnection 4358 extends IAccessibilityInteractionConnection.Stub { 4359 private final WeakReference<ViewRootImpl> mViewAncestor; 4360 4361 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4362 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4363 } 4364 4365 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4366 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4367 int interrogatingPid, long interrogatingTid) { 4368 if (mViewAncestor.get() != null) { 4369 getAccessibilityInteractionController() 4370 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4371 interactionId, callback, interrogatingPid, interrogatingTid); 4372 } 4373 } 4374 4375 public void performAccessibilityAction(int accessibilityId, int action, 4376 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4377 int interogatingPid, long interrogatingTid) { 4378 if (mViewAncestor.get() != null) { 4379 getAccessibilityInteractionController() 4380 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4381 callback, interogatingPid, interrogatingTid); 4382 } 4383 } 4384 4385 public void findAccessibilityNodeInfoByViewId(int viewId, 4386 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4387 int interrogatingPid, long interrogatingTid) { 4388 if (mViewAncestor.get() != null) { 4389 getAccessibilityInteractionController() 4390 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4391 interrogatingPid, interrogatingTid); 4392 } 4393 } 4394 4395 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4396 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4397 int interrogatingPid, long interrogatingTid) { 4398 if (mViewAncestor.get() != null) { 4399 getAccessibilityInteractionController() 4400 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4401 interactionId, callback, interrogatingPid, interrogatingTid); 4402 } 4403 } 4404 } 4405 4406 /** 4407 * Class for managing accessibility interactions initiated from the system 4408 * and targeting the view hierarchy. A *ClientThread method is to be 4409 * called from the interaction connection this ViewAncestor gives the 4410 * system to talk to it and a corresponding *UiThread method that is executed 4411 * on the UI thread. 4412 */ 4413 final class AccessibilityInteractionController { 4414 private static final int POOL_SIZE = 5; 4415 4416 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4417 new FindByAccessibilitytIdPredicate(); 4418 4419 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4420 new ArrayList<AccessibilityNodeInfo>(); 4421 4422 // Reusable poolable arguments for interacting with the view hierarchy 4423 // to fit more arguments than Message and to avoid sharing objects between 4424 // two messages since several threads can send messages concurrently. 4425 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4426 new PoolableManager<SomeArgs>() { 4427 public SomeArgs newInstance() { 4428 return new SomeArgs(); 4429 } 4430 4431 public void onAcquired(SomeArgs info) { 4432 /* do nothing */ 4433 } 4434 4435 public void onReleased(SomeArgs info) { 4436 info.clear(); 4437 } 4438 }, POOL_SIZE) 4439 ); 4440 4441 public class SomeArgs implements Poolable<SomeArgs> { 4442 private SomeArgs mNext; 4443 private boolean mIsPooled; 4444 4445 public Object arg1; 4446 public Object arg2; 4447 public int argi1; 4448 public int argi2; 4449 public int argi3; 4450 4451 public SomeArgs getNextPoolable() { 4452 return mNext; 4453 } 4454 4455 public boolean isPooled() { 4456 return mIsPooled; 4457 } 4458 4459 public void setNextPoolable(SomeArgs args) { 4460 mNext = args; 4461 } 4462 4463 public void setPooled(boolean isPooled) { 4464 mIsPooled = isPooled; 4465 } 4466 4467 private void clear() { 4468 arg1 = null; 4469 arg2 = null; 4470 argi1 = 0; 4471 argi2 = 0; 4472 argi3 = 0; 4473 } 4474 } 4475 4476 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4477 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4478 int interrogatingPid, long interrogatingTid) { 4479 Message message = Message.obtain(); 4480 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4481 message.arg1 = accessibilityId; 4482 message.arg2 = interactionId; 4483 message.obj = callback; 4484 // If the interrogation is performed by the same thread as the main UI 4485 // thread in this process, set the message as a static reference so 4486 // after this call completes the same thread but in the interrogating 4487 // client can handle the message to generate the result. 4488 if (interrogatingPid == Process.myPid() 4489 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4490 message.setTarget(ViewRootImpl.this); 4491 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4492 } else { 4493 sendMessage(message); 4494 } 4495 } 4496 4497 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4498 final int accessibilityId = message.arg1; 4499 final int interactionId = message.arg2; 4500 final IAccessibilityInteractionConnectionCallback callback = 4501 (IAccessibilityInteractionConnectionCallback) message.obj; 4502 4503 AccessibilityNodeInfo info = null; 4504 try { 4505 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4506 predicate.init(accessibilityId); 4507 View root = ViewRootImpl.this.mView; 4508 View target = root.findViewByPredicate(predicate); 4509 if (target != null && target.isShown()) { 4510 info = target.createAccessibilityNodeInfo(); 4511 } 4512 } finally { 4513 try { 4514 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4515 } catch (RemoteException re) { 4516 /* ignore - the other side will time out */ 4517 } 4518 } 4519 } 4520 4521 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4522 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4523 long interrogatingTid) { 4524 Message message = Message.obtain(); 4525 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4526 message.arg1 = viewId; 4527 message.arg2 = interactionId; 4528 message.obj = callback; 4529 // If the interrogation is performed by the same thread as the main UI 4530 // thread in this process, set the message as a static reference so 4531 // after this call completes the same thread but in the interrogating 4532 // client can handle the message to generate the result. 4533 if (interrogatingPid == Process.myPid() 4534 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4535 message.setTarget(ViewRootImpl.this); 4536 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4537 } else { 4538 sendMessage(message); 4539 } 4540 } 4541 4542 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4543 final int viewId = message.arg1; 4544 final int interactionId = message.arg2; 4545 final IAccessibilityInteractionConnectionCallback callback = 4546 (IAccessibilityInteractionConnectionCallback) message.obj; 4547 4548 AccessibilityNodeInfo info = null; 4549 try { 4550 View root = ViewRootImpl.this.mView; 4551 View target = root.findViewById(viewId); 4552 if (target != null && target.isShown()) { 4553 info = target.createAccessibilityNodeInfo(); 4554 } 4555 } finally { 4556 try { 4557 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4558 } catch (RemoteException re) { 4559 /* ignore - the other side will time out */ 4560 } 4561 } 4562 } 4563 4564 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4565 int accessibilityViewId, int interactionId, 4566 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4567 long interrogatingTid) { 4568 Message message = Message.obtain(); 4569 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4570 SomeArgs args = mPool.acquire(); 4571 args.arg1 = text; 4572 args.argi1 = accessibilityViewId; 4573 args.argi2 = interactionId; 4574 args.arg2 = callback; 4575 message.obj = args; 4576 // If the interrogation is performed by the same thread as the main UI 4577 // thread in this process, set the message as a static reference so 4578 // after this call completes the same thread but in the interrogating 4579 // client can handle the message to generate the result. 4580 if (interrogatingPid == Process.myPid() 4581 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4582 message.setTarget(ViewRootImpl.this); 4583 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4584 } else { 4585 sendMessage(message); 4586 } 4587 } 4588 4589 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4590 SomeArgs args = (SomeArgs) message.obj; 4591 final String text = (String) args.arg1; 4592 final int accessibilityViewId = args.argi1; 4593 final int interactionId = args.argi2; 4594 final IAccessibilityInteractionConnectionCallback callback = 4595 (IAccessibilityInteractionConnectionCallback) args.arg2; 4596 mPool.release(args); 4597 4598 List<AccessibilityNodeInfo> infos = null; 4599 try { 4600 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4601 foundViews.clear(); 4602 4603 View root; 4604 if (accessibilityViewId != View.NO_ID) { 4605 root = findViewByAccessibilityId(accessibilityViewId); 4606 } else { 4607 root = ViewRootImpl.this.mView; 4608 } 4609 4610 if (root == null || !root.isShown()) { 4611 return; 4612 } 4613 4614 root.findViewsWithText(foundViews, text); 4615 if (foundViews.isEmpty()) { 4616 return; 4617 } 4618 4619 infos = mTempAccessibilityNodeInfoList; 4620 infos.clear(); 4621 4622 final int viewCount = foundViews.size(); 4623 for (int i = 0; i < viewCount; i++) { 4624 View foundView = foundViews.get(i); 4625 if (foundView.isShown()) { 4626 infos.add(foundView.createAccessibilityNodeInfo()); 4627 } 4628 } 4629 } finally { 4630 try { 4631 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4632 } catch (RemoteException re) { 4633 /* ignore - the other side will time out */ 4634 } 4635 } 4636 } 4637 4638 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4639 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4640 int interogatingPid, long interrogatingTid) { 4641 Message message = Message.obtain(); 4642 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4643 SomeArgs args = mPool.acquire(); 4644 args.argi1 = accessibilityId; 4645 args.argi2 = action; 4646 args.argi3 = interactionId; 4647 args.arg1 = callback; 4648 message.obj = args; 4649 // If the interrogation is performed by the same thread as the main UI 4650 // thread in this process, set the message as a static reference so 4651 // after this call completes the same thread but in the interrogating 4652 // client can handle the message to generate the result. 4653 if (interogatingPid == Process.myPid() 4654 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4655 message.setTarget(ViewRootImpl.this); 4656 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4657 } else { 4658 sendMessage(message); 4659 } 4660 } 4661 4662 public void perfromAccessibilityActionUiThread(Message message) { 4663 SomeArgs args = (SomeArgs) message.obj; 4664 final int accessibilityId = args.argi1; 4665 final int action = args.argi2; 4666 final int interactionId = args.argi3; 4667 final IAccessibilityInteractionConnectionCallback callback = 4668 (IAccessibilityInteractionConnectionCallback) args.arg1; 4669 mPool.release(args); 4670 4671 boolean succeeded = false; 4672 try { 4673 switch (action) { 4674 case AccessibilityNodeInfo.ACTION_FOCUS: { 4675 succeeded = performActionFocus(accessibilityId); 4676 } break; 4677 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4678 succeeded = performActionClearFocus(accessibilityId); 4679 } break; 4680 case AccessibilityNodeInfo.ACTION_SELECT: { 4681 succeeded = performActionSelect(accessibilityId); 4682 } break; 4683 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4684 succeeded = performActionClearSelection(accessibilityId); 4685 } break; 4686 } 4687 } finally { 4688 try { 4689 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4690 } catch (RemoteException re) { 4691 /* ignore - the other side will time out */ 4692 } 4693 } 4694 } 4695 4696 private boolean performActionFocus(int accessibilityId) { 4697 View target = findViewByAccessibilityId(accessibilityId); 4698 if (target == null) { 4699 return false; 4700 } 4701 // Get out of touch mode since accessibility wants to move focus around. 4702 ensureTouchMode(false); 4703 return target.requestFocus(); 4704 } 4705 4706 private boolean performActionClearFocus(int accessibilityId) { 4707 View target = findViewByAccessibilityId(accessibilityId); 4708 if (target == null) { 4709 return false; 4710 } 4711 if (!target.isFocused()) { 4712 return false; 4713 } 4714 target.clearFocus(); 4715 return !target.isFocused(); 4716 } 4717 4718 private boolean performActionSelect(int accessibilityId) { 4719 View target = findViewByAccessibilityId(accessibilityId); 4720 if (target == null) { 4721 return false; 4722 } 4723 if (target.isSelected()) { 4724 return false; 4725 } 4726 target.setSelected(true); 4727 return target.isSelected(); 4728 } 4729 4730 private boolean performActionClearSelection(int accessibilityId) { 4731 View target = findViewByAccessibilityId(accessibilityId); 4732 if (target == null) { 4733 return false; 4734 } 4735 if (!target.isSelected()) { 4736 return false; 4737 } 4738 target.setSelected(false); 4739 return !target.isSelected(); 4740 } 4741 4742 private View findViewByAccessibilityId(int accessibilityId) { 4743 View root = ViewRootImpl.this.mView; 4744 if (root == null) { 4745 return null; 4746 } 4747 mFindByAccessibilityIdPredicate.init(accessibilityId); 4748 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4749 return (foundView != null && foundView.isShown()) ? foundView : null; 4750 } 4751 4752 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4753 public int mSerchedId; 4754 4755 public void init(int searchedId) { 4756 mSerchedId = searchedId; 4757 } 4758 4759 public boolean apply(View view) { 4760 return (view.getAccessibilityViewId() == mSerchedId); 4761 } 4762 } 4763 } 4764 4765 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4766 public volatile boolean mIsPending; 4767 4768 public void run() { 4769 if (mView != null) { 4770 // Check again for accessibility state since this is executed delayed. 4771 AccessibilityManager accessibilityManager = 4772 AccessibilityManager.getInstance(mView.mContext); 4773 if (accessibilityManager.isEnabled()) { 4774 // Send the event directly since we do not want to append the 4775 // source text because this is the text for the entire window 4776 // and we just want to notify that the content has changed. 4777 AccessibilityEvent event = AccessibilityEvent.obtain( 4778 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4779 mView.onInitializeAccessibilityEvent(event); 4780 accessibilityManager.sendAccessibilityEvent(event); 4781 } 4782 mIsPending = false; 4783 } 4784 } 4785 } 4786} 4787