ViewRootImpl.java revision 6ff0037792619c4441d9d3caa4f9ab4f45c11236
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.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityNodeInfo; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.policy.PolicyManager; 76import com.android.internal.util.Predicate; 77import com.android.internal.view.BaseSurfaceHolder; 78import com.android.internal.view.IInputMethodCallback; 79import com.android.internal.view.IInputMethodSession; 80import com.android.internal.view.RootViewSurfaceTaker; 81 82import java.io.IOException; 83import java.io.OutputStream; 84import java.io.PrintWriter; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.List; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl extends Handler implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 99 private static final String TAG = "ViewRootImpl"; 100 private static final boolean DBG = false; 101 private static final boolean LOCAL_LOGV = false; 102 /** @noinspection PointlessBooleanExpression*/ 103 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 104 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 105 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 106 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 107 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 109 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 110 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 111 private static final boolean WATCH_POINTER = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static IWindowSession sWindowSession; 129 130 static final Object mStaticInit = new Object(); 131 static boolean mInitialized = false; 132 133 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 134 135 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 136 static boolean sFirstDrawComplete = false; 137 138 static final ArrayList<ComponentCallbacks> sConfigCallbacks 139 = new ArrayList<ComponentCallbacks>(); 140 141 long mLastTrackballTime = 0; 142 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 143 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 144 145 int mLastJoystickXDirection; 146 int mLastJoystickYDirection; 147 int mLastJoystickXKeyCode; 148 int mLastJoystickYKeyCode; 149 150 final int[] mTmpLocation = new int[2]; 151 152 final TypedValue mTmpValue = new TypedValue(); 153 154 final InputMethodCallback mInputMethodCallback; 155 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 156 int mPendingEventSeq = 0; 157 158 final Thread mThread; 159 160 final WindowLeaked mLocation; 161 162 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 163 164 final W mWindow; 165 166 View mView; 167 View mFocusedView; 168 View mRealFocusedView; // this is not set to null in touch mode 169 int mViewVisibility; 170 boolean mAppVisible = true; 171 172 // Set to true if the owner of this window is in the stopped state, 173 // so the window should no longer be active. 174 boolean mStopped = false; 175 176 boolean mLastInCompatMode = false; 177 178 SurfaceHolder.Callback2 mSurfaceHolderCallback; 179 BaseSurfaceHolder mSurfaceHolder; 180 boolean mIsCreating; 181 boolean mDrawingAllowed; 182 183 final Region mTransparentRegion; 184 final Region mPreviousTransparentRegion; 185 186 int mWidth; 187 int mHeight; 188 Rect mDirty; 189 final Rect mCurrentDirty = new Rect(); 190 final Rect mPreviousDirty = new Rect(); 191 boolean mIsAnimating; 192 193 CompatibilityInfo.Translator mTranslator; 194 195 final View.AttachInfo mAttachInfo; 196 InputChannel mInputChannel; 197 InputQueue.Callback mInputQueueCallback; 198 InputQueue mInputQueue; 199 FallbackEventHandler mFallbackEventHandler; 200 201 final Rect mTempRect; // used in the transaction to not thrash the heap. 202 final Rect mVisRect; // used to retrieve visible rect of focused view. 203 204 boolean mTraversalScheduled; 205 long mLastTraversalFinishedTimeNanos; 206 long mLastDrawDurationNanos; 207 boolean mWillDrawSoon; 208 boolean mLayoutRequested; 209 boolean mFirst; 210 boolean mReportNextDraw; 211 boolean mFullRedrawNeeded; 212 boolean mNewSurfaceNeeded; 213 boolean mHasHadWindowFocus; 214 boolean mLastWasImTarget; 215 216 boolean mWindowAttributesChanged = false; 217 218 // These can be accessed by any thread, must be protected with a lock. 219 // Surface can never be reassigned or cleared (use Surface.clear()). 220 private final Surface mSurface = new Surface(); 221 222 boolean mAdded; 223 boolean mAddedTouchMode; 224 225 CompatibilityInfoHolder mCompatibilityInfo; 226 227 /*package*/ int mAddNesting; 228 229 // These are accessed by multiple threads. 230 final Rect mWinFrame; // frame given by window manager. 231 232 final Rect mPendingVisibleInsets = new Rect(); 233 final Rect mPendingContentInsets = new Rect(); 234 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 235 = new ViewTreeObserver.InternalInsetsInfo(); 236 237 final Configuration mLastConfiguration = new Configuration(); 238 final Configuration mPendingConfiguration = new Configuration(); 239 240 class ResizedInfo { 241 Rect coveredInsets; 242 Rect visibleInsets; 243 Configuration newConfig; 244 } 245 246 boolean mScrollMayChange; 247 int mSoftInputMode; 248 View mLastScrolledFocus; 249 int mScrollY; 250 int mCurScrollY; 251 Scroller mScroller; 252 HardwareLayer mResizeBuffer; 253 long mResizeBufferStartTime; 254 int mResizeBufferDuration; 255 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 256 private ArrayList<LayoutTransition> mPendingTransitions; 257 258 final ViewConfiguration mViewConfiguration; 259 260 /* Drag/drop */ 261 ClipDescription mDragDescription; 262 View mCurrentDragView; 263 volatile Object mLocalDragState; 264 final PointF mDragPoint = new PointF(); 265 final PointF mLastTouchPoint = new PointF(); 266 267 private boolean mProfileRendering; 268 private Thread mRenderProfiler; 269 private volatile boolean mRenderProfilingEnabled; 270 271 /** 272 * see {@link #playSoundEffect(int)} 273 */ 274 AudioManager mAudioManager; 275 276 final AccessibilityManager mAccessibilityManager; 277 278 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 279 280 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 281 282 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 283 284 private final int mDensity; 285 286 /** 287 * Consistency verifier for debugging purposes. 288 */ 289 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 290 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 291 new InputEventConsistencyVerifier(this, 0) : null; 292 293 public static IWindowSession getWindowSession(Looper mainLooper) { 294 synchronized (mStaticInit) { 295 if (!mInitialized) { 296 try { 297 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 298 sWindowSession = Display.getWindowManager().openSession( 299 imm.getClient(), imm.getInputContext()); 300 mInitialized = true; 301 } catch (RemoteException e) { 302 } 303 } 304 return sWindowSession; 305 } 306 } 307 308 public ViewRootImpl(Context context) { 309 super(); 310 311 if (MEASURE_LATENCY) { 312 if (lt == null) { 313 lt = new LatencyTimer(100, 1000); 314 } 315 } 316 317 // Initialize the statics when this class is first instantiated. This is 318 // done here instead of in the static block because Zygote does not 319 // allow the spawning of threads. 320 getWindowSession(context.getMainLooper()); 321 322 mThread = Thread.currentThread(); 323 mLocation = new WindowLeaked(null); 324 mLocation.fillInStackTrace(); 325 mWidth = -1; 326 mHeight = -1; 327 mDirty = new Rect(); 328 mTempRect = new Rect(); 329 mVisRect = new Rect(); 330 mWinFrame = new Rect(); 331 mWindow = new W(this); 332 mInputMethodCallback = new InputMethodCallback(this); 333 mViewVisibility = View.GONE; 334 mTransparentRegion = new Region(); 335 mPreviousTransparentRegion = new Region(); 336 mFirst = true; // true for the first time the view is added 337 mAdded = false; 338 mAccessibilityManager = AccessibilityManager.getInstance(context); 339 mAccessibilityInteractionConnectionManager = 340 new AccessibilityInteractionConnectionManager(); 341 mAccessibilityManager.addAccessibilityStateChangeListener( 342 mAccessibilityInteractionConnectionManager); 343 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 344 mViewConfiguration = ViewConfiguration.get(context); 345 mDensity = context.getResources().getDisplayMetrics().densityDpi; 346 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 347 mProfileRendering = Boolean.parseBoolean( 348 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 349 } 350 351 public static void addFirstDrawHandler(Runnable callback) { 352 synchronized (sFirstDrawHandlers) { 353 if (!sFirstDrawComplete) { 354 sFirstDrawHandlers.add(callback); 355 } 356 } 357 } 358 359 public static void addConfigCallback(ComponentCallbacks callback) { 360 synchronized (sConfigCallbacks) { 361 sConfigCallbacks.add(callback); 362 } 363 } 364 365 // FIXME for perf testing only 366 private boolean mProfile = false; 367 368 /** 369 * Call this to profile the next traversal call. 370 * FIXME for perf testing only. Remove eventually 371 */ 372 public void profile() { 373 mProfile = true; 374 } 375 376 /** 377 * Indicates whether we are in touch mode. Calling this method triggers an IPC 378 * call and should be avoided whenever possible. 379 * 380 * @return True, if the device is in touch mode, false otherwise. 381 * 382 * @hide 383 */ 384 static boolean isInTouchMode() { 385 if (mInitialized) { 386 try { 387 return sWindowSession.getInTouchMode(); 388 } catch (RemoteException e) { 389 } 390 } 391 return false; 392 } 393 394 /** 395 * We have one child 396 */ 397 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 398 synchronized (this) { 399 if (mView == null) { 400 mView = view; 401 mFallbackEventHandler.setView(view); 402 mWindowAttributes.copyFrom(attrs); 403 attrs = mWindowAttributes; 404 405 if (view instanceof RootViewSurfaceTaker) { 406 mSurfaceHolderCallback = 407 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 408 if (mSurfaceHolderCallback != null) { 409 mSurfaceHolder = new TakenSurfaceHolder(); 410 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 411 } 412 } 413 414 // If the application owns the surface, don't enable hardware acceleration 415 if (mSurfaceHolder == null) { 416 enableHardwareAcceleration(attrs); 417 } 418 419 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 420 mTranslator = compatibilityInfo.getTranslator(); 421 422 if (mTranslator != null) { 423 mSurface.setCompatibilityTranslator(mTranslator); 424 } 425 426 boolean restore = false; 427 if (mTranslator != null) { 428 restore = true; 429 attrs.backup(); 430 mTranslator.translateWindowLayout(attrs); 431 } 432 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 433 434 if (!compatibilityInfo.supportsScreen()) { 435 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 436 mLastInCompatMode = true; 437 } 438 439 mSoftInputMode = attrs.softInputMode; 440 mWindowAttributesChanged = true; 441 mAttachInfo.mRootView = view; 442 mAttachInfo.mScalingRequired = mTranslator != null; 443 mAttachInfo.mApplicationScale = 444 mTranslator == null ? 1.0f : mTranslator.applicationScale; 445 if (panelParentView != null) { 446 mAttachInfo.mPanelParentWindowToken 447 = panelParentView.getApplicationWindowToken(); 448 } 449 mAdded = true; 450 int res; /* = WindowManagerImpl.ADD_OKAY; */ 451 452 // Schedule the first layout -before- adding to the window 453 // manager, to make sure we do the relayout before receiving 454 // any other events from the system. 455 requestLayout(); 456 mInputChannel = new InputChannel(); 457 try { 458 res = sWindowSession.add(mWindow, mWindowAttributes, 459 getHostVisibility(), mAttachInfo.mContentInsets, 460 mInputChannel); 461 } catch (RemoteException e) { 462 mAdded = false; 463 mView = null; 464 mAttachInfo.mRootView = null; 465 mInputChannel = null; 466 mFallbackEventHandler.setView(null); 467 unscheduleTraversals(); 468 throw new RuntimeException("Adding window failed", e); 469 } finally { 470 if (restore) { 471 attrs.restore(); 472 } 473 } 474 475 if (mTranslator != null) { 476 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 477 } 478 mPendingContentInsets.set(mAttachInfo.mContentInsets); 479 mPendingVisibleInsets.set(0, 0, 0, 0); 480 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 481 if (res < WindowManagerImpl.ADD_OKAY) { 482 mView = null; 483 mAttachInfo.mRootView = null; 484 mAdded = false; 485 mFallbackEventHandler.setView(null); 486 unscheduleTraversals(); 487 switch (res) { 488 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 489 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 490 throw new WindowManagerImpl.BadTokenException( 491 "Unable to add window -- token " + attrs.token 492 + " is not valid; is your activity running?"); 493 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 494 throw new WindowManagerImpl.BadTokenException( 495 "Unable to add window -- token " + attrs.token 496 + " is not for an application"); 497 case WindowManagerImpl.ADD_APP_EXITING: 498 throw new WindowManagerImpl.BadTokenException( 499 "Unable to add window -- app for token " + attrs.token 500 + " is exiting"); 501 case WindowManagerImpl.ADD_DUPLICATE_ADD: 502 throw new WindowManagerImpl.BadTokenException( 503 "Unable to add window -- window " + mWindow 504 + " has already been added"); 505 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 506 // Silently ignore -- we would have just removed it 507 // right away, anyway. 508 return; 509 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 510 throw new WindowManagerImpl.BadTokenException( 511 "Unable to add window " + mWindow + 512 " -- another window of this type already exists"); 513 case WindowManagerImpl.ADD_PERMISSION_DENIED: 514 throw new WindowManagerImpl.BadTokenException( 515 "Unable to add window " + mWindow + 516 " -- permission denied for this window type"); 517 } 518 throw new RuntimeException( 519 "Unable to add window -- unknown error code " + res); 520 } 521 522 if (view instanceof RootViewSurfaceTaker) { 523 mInputQueueCallback = 524 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 525 } 526 if (mInputQueueCallback != null) { 527 mInputQueue = new InputQueue(mInputChannel); 528 mInputQueueCallback.onInputQueueCreated(mInputQueue); 529 } else { 530 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 531 Looper.myQueue()); 532 } 533 534 view.assignParent(this); 535 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 536 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 537 538 if (mAccessibilityManager.isEnabled()) { 539 mAccessibilityInteractionConnectionManager.ensureConnection(); 540 } 541 } 542 } 543 } 544 545 private void destroyHardwareResources() { 546 if (mAttachInfo.mHardwareRenderer != null) { 547 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 548 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 549 } 550 mAttachInfo.mHardwareRenderer.destroy(false); 551 } 552 } 553 554 void destroyHardwareLayers() { 555 if (mThread != Thread.currentThread()) { 556 if (mAttachInfo.mHardwareRenderer != null && 557 mAttachInfo.mHardwareRenderer.isEnabled()) { 558 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 559 } 560 } else { 561 if (mAttachInfo.mHardwareRenderer != null && 562 mAttachInfo.mHardwareRenderer.isEnabled()) { 563 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 564 } 565 } 566 } 567 568 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 569 mAttachInfo.mHardwareAccelerated = false; 570 mAttachInfo.mHardwareAccelerationRequested = false; 571 572 // Try to enable hardware acceleration if requested 573 final boolean hardwareAccelerated = 574 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 575 576 if (hardwareAccelerated) { 577 if (!HardwareRenderer.isAvailable()) { 578 return; 579 } 580 581 // Only enable hardware acceleration if we are not in the system process 582 // The window manager creates ViewAncestors to display animated preview windows 583 // of launching apps and we don't want those to be hardware accelerated 584 585 final boolean systemHwAccelerated = 586 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED_SYSTEM) != 0; 587 588 if (!HardwareRenderer.sRendererDisabled || systemHwAccelerated) { 589 // Don't enable hardware acceleration when we're not on the main thread 590 if (!systemHwAccelerated && Looper.getMainLooper() != Looper.myLooper()) { 591 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 592 + "acceleration outside of the main thread, aborting"); 593 return; 594 } 595 596 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 597 if (mAttachInfo.mHardwareRenderer != null) { 598 mAttachInfo.mHardwareRenderer.destroy(true); 599 } 600 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 601 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 602 = mAttachInfo.mHardwareRenderer != null; 603 } else { 604 // We would normally have enabled hardware acceleration, but 605 // haven't because we are in the system process. We still want 606 // what is drawn on the screen to behave as if it is accelerated, 607 // so that our preview starting windows visually match what will 608 // actually be drawn by the app. 609 mAttachInfo.mHardwareAccelerationRequested = true; 610 } 611 } 612 } 613 614 public View getView() { 615 return mView; 616 } 617 618 final WindowLeaked getLocation() { 619 return mLocation; 620 } 621 622 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 623 synchronized (this) { 624 int oldSoftInputMode = mWindowAttributes.softInputMode; 625 // preserve compatible window flag if exists. 626 int compatibleWindowFlag = 627 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 628 mWindowAttributes.copyFrom(attrs); 629 mWindowAttributes.flags |= compatibleWindowFlag; 630 631 if (newView) { 632 mSoftInputMode = attrs.softInputMode; 633 requestLayout(); 634 } 635 // Don't lose the mode we last auto-computed. 636 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 637 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 638 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 639 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 640 | (oldSoftInputMode 641 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 642 } 643 mWindowAttributesChanged = true; 644 scheduleTraversals(); 645 } 646 } 647 648 void handleAppVisibility(boolean visible) { 649 if (mAppVisible != visible) { 650 mAppVisible = visible; 651 scheduleTraversals(); 652 } 653 } 654 655 void handleGetNewSurface() { 656 mNewSurfaceNeeded = true; 657 mFullRedrawNeeded = true; 658 scheduleTraversals(); 659 } 660 661 /** 662 * {@inheritDoc} 663 */ 664 public void requestLayout() { 665 checkThread(); 666 mLayoutRequested = true; 667 scheduleTraversals(); 668 } 669 670 /** 671 * {@inheritDoc} 672 */ 673 public boolean isLayoutRequested() { 674 return mLayoutRequested; 675 } 676 677 public void invalidateChild(View child, Rect dirty) { 678 checkThread(); 679 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 680 if (dirty == null) { 681 // Fast invalidation for GL-enabled applications; GL must redraw everything 682 invalidate(); 683 return; 684 } 685 if (mCurScrollY != 0 || mTranslator != null) { 686 mTempRect.set(dirty); 687 dirty = mTempRect; 688 if (mCurScrollY != 0) { 689 dirty.offset(0, -mCurScrollY); 690 } 691 if (mTranslator != null) { 692 mTranslator.translateRectInAppWindowToScreen(dirty); 693 } 694 if (mAttachInfo.mScalingRequired) { 695 dirty.inset(-1, -1); 696 } 697 } 698 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 699 mAttachInfo.mSetIgnoreDirtyState = true; 700 mAttachInfo.mIgnoreDirtyState = true; 701 } 702 mDirty.union(dirty); 703 if (!mWillDrawSoon) { 704 scheduleTraversals(); 705 } 706 } 707 708 void invalidate() { 709 mDirty.set(0, 0, mWidth, mHeight); 710 scheduleTraversals(); 711 } 712 713 void setStopped(boolean stopped) { 714 if (mStopped != stopped) { 715 mStopped = stopped; 716 if (!stopped) { 717 scheduleTraversals(); 718 } 719 } 720 } 721 722 public ViewParent getParent() { 723 return null; 724 } 725 726 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 727 invalidateChild(null, dirty); 728 return null; 729 } 730 731 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 732 if (child != mView) { 733 throw new RuntimeException("child is not mine, honest!"); 734 } 735 // Note: don't apply scroll offset, because we want to know its 736 // visibility in the virtual canvas being given to the view hierarchy. 737 return r.intersect(0, 0, mWidth, mHeight); 738 } 739 740 public void bringChildToFront(View child) { 741 } 742 743 public void scheduleTraversals() { 744 if (!mTraversalScheduled) { 745 mTraversalScheduled = true; 746 747 //noinspection ConstantConditions 748 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 749 final long now = System.nanoTime(); 750 Log.d(TAG, "Latency: Scheduled traversal, it has been " 751 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 752 + "ms since the last traversal finished."); 753 } 754 755 sendEmptyMessage(DO_TRAVERSAL); 756 } 757 } 758 759 public void unscheduleTraversals() { 760 if (mTraversalScheduled) { 761 mTraversalScheduled = false; 762 removeMessages(DO_TRAVERSAL); 763 } 764 } 765 766 int getHostVisibility() { 767 return mAppVisible ? mView.getVisibility() : View.GONE; 768 } 769 770 void disposeResizeBuffer() { 771 if (mResizeBuffer != null) { 772 mResizeBuffer.destroy(); 773 mResizeBuffer = null; 774 } 775 } 776 777 /** 778 * Add LayoutTransition to the list of transitions to be started in the next traversal. 779 * This list will be cleared after the transitions on the list are start()'ed. These 780 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 781 * happens during the layout phase of traversal, which we want to complete before any of the 782 * animations are started (because those animations may side-effect properties that layout 783 * depends upon, like the bounding rectangles of the affected views). So we add the transition 784 * to the list and it is started just prior to starting the drawing phase of traversal. 785 * 786 * @param transition The LayoutTransition to be started on the next traversal. 787 * 788 * @hide 789 */ 790 public void requestTransitionStart(LayoutTransition transition) { 791 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 792 if (mPendingTransitions == null) { 793 mPendingTransitions = new ArrayList<LayoutTransition>(); 794 } 795 mPendingTransitions.add(transition); 796 } 797 } 798 799 private void performTraversals() { 800 // cache mView since it is used so much below... 801 final View host = mView; 802 803 if (DBG) { 804 System.out.println("======================================"); 805 System.out.println("performTraversals"); 806 host.debug(); 807 } 808 809 if (host == null || !mAdded) 810 return; 811 812 mTraversalScheduled = false; 813 mWillDrawSoon = true; 814 boolean windowSizeMayChange = false; 815 boolean fullRedrawNeeded = mFullRedrawNeeded; 816 boolean newSurface = false; 817 boolean surfaceChanged = false; 818 WindowManager.LayoutParams lp = mWindowAttributes; 819 820 int desiredWindowWidth; 821 int desiredWindowHeight; 822 int childWidthMeasureSpec; 823 int childHeightMeasureSpec; 824 825 final View.AttachInfo attachInfo = mAttachInfo; 826 827 final int viewVisibility = getHostVisibility(); 828 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 829 || mNewSurfaceNeeded; 830 831 WindowManager.LayoutParams params = null; 832 if (mWindowAttributesChanged) { 833 mWindowAttributesChanged = false; 834 surfaceChanged = true; 835 params = lp; 836 } 837 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 838 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 839 params = lp; 840 fullRedrawNeeded = true; 841 mLayoutRequested = true; 842 if (mLastInCompatMode) { 843 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 844 mLastInCompatMode = false; 845 } else { 846 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 847 mLastInCompatMode = true; 848 } 849 } 850 Rect frame = mWinFrame; 851 if (mFirst) { 852 fullRedrawNeeded = true; 853 mLayoutRequested = true; 854 855 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 856 // NOTE -- system code, won't try to do compat mode. 857 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 858 Point size = new Point(); 859 disp.getRealSize(size); 860 desiredWindowWidth = size.x; 861 desiredWindowHeight = size.y; 862 } else { 863 DisplayMetrics packageMetrics = 864 mView.getContext().getResources().getDisplayMetrics(); 865 desiredWindowWidth = packageMetrics.widthPixels; 866 desiredWindowHeight = packageMetrics.heightPixels; 867 } 868 869 // For the very first time, tell the view hierarchy that it 870 // is attached to the window. Note that at this point the surface 871 // object is not initialized to its backing store, but soon it 872 // will be (assuming the window is visible). 873 attachInfo.mSurface = mSurface; 874 // We used to use the following condition to choose 32 bits drawing caches: 875 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 876 // However, windows are now always 32 bits by default, so choose 32 bits 877 attachInfo.mUse32BitDrawingCache = true; 878 attachInfo.mHasWindowFocus = false; 879 attachInfo.mWindowVisibility = viewVisibility; 880 attachInfo.mRecomputeGlobalAttributes = false; 881 attachInfo.mKeepScreenOn = false; 882 attachInfo.mSystemUiVisibility = 0; 883 viewVisibilityChanged = false; 884 mLastConfiguration.setTo(host.getResources().getConfiguration()); 885 host.dispatchAttachedToWindow(attachInfo, 0); 886 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 887 888 host.fitSystemWindows(mAttachInfo.mContentInsets); 889 890 } else { 891 desiredWindowWidth = frame.width(); 892 desiredWindowHeight = frame.height(); 893 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 894 if (DEBUG_ORIENTATION) Log.v(TAG, 895 "View " + host + " resized to: " + frame); 896 fullRedrawNeeded = true; 897 mLayoutRequested = true; 898 windowSizeMayChange = true; 899 } 900 } 901 902 if (viewVisibilityChanged) { 903 attachInfo.mWindowVisibility = viewVisibility; 904 host.dispatchWindowVisibilityChanged(viewVisibility); 905 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 906 destroyHardwareResources(); 907 } 908 if (viewVisibility == View.GONE) { 909 // After making a window gone, we will count it as being 910 // shown for the first time the next time it gets focus. 911 mHasHadWindowFocus = false; 912 } 913 } 914 915 boolean insetsChanged = false; 916 917 if (mLayoutRequested && !mStopped) { 918 // Execute enqueued actions on every layout in case a view that was detached 919 // enqueued an action after being detached 920 getRunQueue().executeActions(attachInfo.mHandler); 921 922 final Resources res = mView.getContext().getResources(); 923 924 if (mFirst) { 925 // make sure touch mode code executes by setting cached value 926 // to opposite of the added touch mode. 927 mAttachInfo.mInTouchMode = !mAddedTouchMode; 928 ensureTouchModeLocally(mAddedTouchMode); 929 } else { 930 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 931 insetsChanged = true; 932 } 933 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 934 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 935 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 936 + mAttachInfo.mVisibleInsets); 937 } 938 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 939 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 940 windowSizeMayChange = true; 941 942 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 943 // NOTE -- system code, won't try to do compat mode. 944 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 945 Point size = new Point(); 946 disp.getRealSize(size); 947 desiredWindowWidth = size.x; 948 desiredWindowHeight = size.y; 949 } else { 950 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 951 desiredWindowWidth = packageMetrics.widthPixels; 952 desiredWindowHeight = packageMetrics.heightPixels; 953 } 954 } 955 } 956 957 // Ask host how big it wants to be 958 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 959 "Measuring " + host + " in display " + desiredWindowWidth 960 + "x" + desiredWindowHeight + "..."); 961 962 boolean goodMeasure = false; 963 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 964 // On large screens, we don't want to allow dialogs to just 965 // stretch to fill the entire width of the screen to display 966 // one line of text. First try doing the layout at a smaller 967 // size to see if it will fit. 968 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 969 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 970 int baseSize = 0; 971 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 972 baseSize = (int)mTmpValue.getDimension(packageMetrics); 973 } 974 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 975 if (baseSize != 0 && desiredWindowWidth > baseSize) { 976 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 977 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 978 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 979 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 980 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 981 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 982 goodMeasure = true; 983 } else { 984 // Didn't fit in that size... try expanding a bit. 985 baseSize = (baseSize+desiredWindowWidth)/2; 986 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 987 + baseSize); 988 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 989 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 990 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 991 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 992 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 993 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 994 goodMeasure = true; 995 } 996 } 997 } 998 } 999 1000 if (!goodMeasure) { 1001 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1002 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1003 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1004 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1005 windowSizeMayChange = true; 1006 } 1007 } 1008 1009 if (DBG) { 1010 System.out.println("======================================"); 1011 System.out.println("performTraversals -- after measure"); 1012 host.debug(); 1013 } 1014 } 1015 1016 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1017 //Log.i(TAG, "Computing view hierarchy attributes!"); 1018 attachInfo.mRecomputeGlobalAttributes = false; 1019 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1020 int oldVis = attachInfo.mSystemUiVisibility; 1021 attachInfo.mKeepScreenOn = false; 1022 attachInfo.mSystemUiVisibility = 0; 1023 attachInfo.mHasSystemUiListeners = false; 1024 host.dispatchCollectViewAttributes(0); 1025 if (attachInfo.mKeepScreenOn != oldScreenOn 1026 || attachInfo.mSystemUiVisibility != oldVis 1027 || attachInfo.mHasSystemUiListeners) { 1028 params = lp; 1029 } 1030 } 1031 1032 if (mFirst || attachInfo.mViewVisibilityChanged) { 1033 attachInfo.mViewVisibilityChanged = false; 1034 int resizeMode = mSoftInputMode & 1035 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1036 // If we are in auto resize mode, then we need to determine 1037 // what mode to use now. 1038 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1039 final int N = attachInfo.mScrollContainers.size(); 1040 for (int i=0; i<N; i++) { 1041 if (attachInfo.mScrollContainers.get(i).isShown()) { 1042 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1043 } 1044 } 1045 if (resizeMode == 0) { 1046 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1047 } 1048 if ((lp.softInputMode & 1049 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1050 lp.softInputMode = (lp.softInputMode & 1051 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1052 resizeMode; 1053 params = lp; 1054 } 1055 } 1056 } 1057 1058 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1059 if (!PixelFormat.formatHasAlpha(params.format)) { 1060 params.format = PixelFormat.TRANSLUCENT; 1061 } 1062 } 1063 1064 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1065 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1066 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1067 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1068 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1069 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1070 1071 final boolean computesInternalInsets = 1072 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1073 1074 boolean insetsPending = false; 1075 int relayoutResult = 0; 1076 1077 if (mFirst || windowShouldResize || insetsChanged || 1078 viewVisibilityChanged || params != null) { 1079 1080 if (viewVisibility == View.VISIBLE) { 1081 // If this window is giving internal insets to the window 1082 // manager, and it is being added or changing its visibility, 1083 // then we want to first give the window manager "fake" 1084 // insets to cause it to effectively ignore the content of 1085 // the window during layout. This avoids it briefly causing 1086 // other windows to resize/move based on the raw frame of the 1087 // window, waiting until we can finish laying out this window 1088 // and get back to the window manager with the ultimately 1089 // computed insets. 1090 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1091 } 1092 1093 if (mSurfaceHolder != null) { 1094 mSurfaceHolder.mSurfaceLock.lock(); 1095 mDrawingAllowed = true; 1096 } 1097 1098 boolean hwInitialized = false; 1099 boolean contentInsetsChanged = false; 1100 boolean visibleInsetsChanged; 1101 boolean hadSurface = mSurface.isValid(); 1102 1103 try { 1104 int fl = 0; 1105 if (params != null) { 1106 fl = params.flags; 1107 if (attachInfo.mKeepScreenOn) { 1108 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1109 } 1110 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1111 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1112 || params.subtreeSystemUiVisibility != 0 1113 || params.systemUiVisibility != 0; 1114 } 1115 if (DEBUG_LAYOUT) { 1116 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1117 host.getMeasuredHeight() + ", params=" + params); 1118 } 1119 1120 final int surfaceGenerationId = mSurface.getGenerationId(); 1121 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1122 1123 if (params != null) { 1124 params.flags = fl; 1125 } 1126 1127 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1128 + " content=" + mPendingContentInsets.toShortString() 1129 + " visible=" + mPendingVisibleInsets.toShortString() 1130 + " surface=" + mSurface); 1131 1132 if (mPendingConfiguration.seq != 0) { 1133 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1134 + mPendingConfiguration); 1135 updateConfiguration(mPendingConfiguration, !mFirst); 1136 mPendingConfiguration.seq = 0; 1137 } 1138 1139 contentInsetsChanged = !mPendingContentInsets.equals( 1140 mAttachInfo.mContentInsets); 1141 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1142 mAttachInfo.mVisibleInsets); 1143 if (contentInsetsChanged) { 1144 if (mWidth > 0 && mHeight > 0 && 1145 mSurface != null && mSurface.isValid() && 1146 !mAttachInfo.mTurnOffWindowResizeAnim && 1147 mAttachInfo.mHardwareRenderer != null && 1148 mAttachInfo.mHardwareRenderer.isEnabled() && 1149 mAttachInfo.mHardwareRenderer.validate() && 1150 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1151 1152 disposeResizeBuffer(); 1153 1154 boolean completed = false; 1155 HardwareCanvas canvas = null; 1156 try { 1157 if (mResizeBuffer == null) { 1158 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1159 mWidth, mHeight, false); 1160 } else if (mResizeBuffer.getWidth() != mWidth || 1161 mResizeBuffer.getHeight() != mHeight) { 1162 mResizeBuffer.resize(mWidth, mHeight); 1163 } 1164 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1165 canvas.setViewport(mWidth, mHeight); 1166 canvas.onPreDraw(null); 1167 final int restoreCount = canvas.save(); 1168 1169 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1170 1171 int yoff; 1172 final boolean scrolling = mScroller != null 1173 && mScroller.computeScrollOffset(); 1174 if (scrolling) { 1175 yoff = mScroller.getCurrY(); 1176 mScroller.abortAnimation(); 1177 } else { 1178 yoff = mScrollY; 1179 } 1180 1181 canvas.translate(0, -yoff); 1182 if (mTranslator != null) { 1183 mTranslator.translateCanvas(canvas); 1184 } 1185 1186 mView.draw(canvas); 1187 1188 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1189 mResizeBufferDuration = mView.getResources().getInteger( 1190 com.android.internal.R.integer.config_mediumAnimTime); 1191 completed = true; 1192 1193 canvas.restoreToCount(restoreCount); 1194 } catch (OutOfMemoryError e) { 1195 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1196 } finally { 1197 if (canvas != null) { 1198 canvas.onPostDraw(); 1199 } 1200 if (mResizeBuffer != null) { 1201 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1202 if (!completed) { 1203 mResizeBuffer.destroy(); 1204 mResizeBuffer = null; 1205 } 1206 } 1207 } 1208 } 1209 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1210 host.fitSystemWindows(mAttachInfo.mContentInsets); 1211 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1212 + mAttachInfo.mContentInsets); 1213 } 1214 if (visibleInsetsChanged) { 1215 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1216 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1217 + mAttachInfo.mVisibleInsets); 1218 } 1219 1220 if (!hadSurface) { 1221 if (mSurface.isValid()) { 1222 // If we are creating a new surface, then we need to 1223 // completely redraw it. Also, when we get to the 1224 // point of drawing it we will hold off and schedule 1225 // a new traversal instead. This is so we can tell the 1226 // window manager about all of the windows being displayed 1227 // before actually drawing them, so it can display then 1228 // all at once. 1229 newSurface = true; 1230 fullRedrawNeeded = true; 1231 mPreviousTransparentRegion.setEmpty(); 1232 1233 if (mAttachInfo.mHardwareRenderer != null) { 1234 try { 1235 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1236 } catch (Surface.OutOfResourcesException e) { 1237 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1238 try { 1239 if (!sWindowSession.outOfMemory(mWindow)) { 1240 Slog.w(TAG, "No processes killed for memory; killing self"); 1241 Process.killProcess(Process.myPid()); 1242 } 1243 } catch (RemoteException ex) { 1244 } 1245 mLayoutRequested = true; // ask wm for a new surface next time. 1246 return; 1247 } 1248 } 1249 } 1250 } else if (!mSurface.isValid()) { 1251 // If the surface has been removed, then reset the scroll 1252 // positions. 1253 mLastScrolledFocus = null; 1254 mScrollY = mCurScrollY = 0; 1255 if (mScroller != null) { 1256 mScroller.abortAnimation(); 1257 } 1258 disposeResizeBuffer(); 1259 // Our surface is gone 1260 if (mAttachInfo.mHardwareRenderer != null && 1261 mAttachInfo.mHardwareRenderer.isEnabled()) { 1262 mAttachInfo.mHardwareRenderer.destroy(true); 1263 } 1264 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1265 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1266 fullRedrawNeeded = true; 1267 try { 1268 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1269 } catch (Surface.OutOfResourcesException e) { 1270 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1271 try { 1272 if (!sWindowSession.outOfMemory(mWindow)) { 1273 Slog.w(TAG, "No processes killed for memory; killing self"); 1274 Process.killProcess(Process.myPid()); 1275 } 1276 } catch (RemoteException ex) { 1277 } 1278 mLayoutRequested = true; // ask wm for a new surface next time. 1279 return; 1280 } 1281 } 1282 } catch (RemoteException e) { 1283 } 1284 1285 if (DEBUG_ORIENTATION) Log.v( 1286 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1287 1288 attachInfo.mWindowLeft = frame.left; 1289 attachInfo.mWindowTop = frame.top; 1290 1291 // !!FIXME!! This next section handles the case where we did not get the 1292 // window size we asked for. We should avoid this by getting a maximum size from 1293 // the window session beforehand. 1294 mWidth = frame.width(); 1295 mHeight = frame.height(); 1296 1297 if (mSurfaceHolder != null) { 1298 // The app owns the surface; tell it about what is going on. 1299 if (mSurface.isValid()) { 1300 // XXX .copyFrom() doesn't work! 1301 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1302 mSurfaceHolder.mSurface = mSurface; 1303 } 1304 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1305 mSurfaceHolder.mSurfaceLock.unlock(); 1306 if (mSurface.isValid()) { 1307 if (!hadSurface) { 1308 mSurfaceHolder.ungetCallbacks(); 1309 1310 mIsCreating = true; 1311 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1312 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1313 if (callbacks != null) { 1314 for (SurfaceHolder.Callback c : callbacks) { 1315 c.surfaceCreated(mSurfaceHolder); 1316 } 1317 } 1318 surfaceChanged = true; 1319 } 1320 if (surfaceChanged) { 1321 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1322 lp.format, mWidth, mHeight); 1323 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1324 if (callbacks != null) { 1325 for (SurfaceHolder.Callback c : callbacks) { 1326 c.surfaceChanged(mSurfaceHolder, lp.format, 1327 mWidth, mHeight); 1328 } 1329 } 1330 } 1331 mIsCreating = false; 1332 } else if (hadSurface) { 1333 mSurfaceHolder.ungetCallbacks(); 1334 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1335 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1336 if (callbacks != null) { 1337 for (SurfaceHolder.Callback c : callbacks) { 1338 c.surfaceDestroyed(mSurfaceHolder); 1339 } 1340 } 1341 mSurfaceHolder.mSurfaceLock.lock(); 1342 try { 1343 mSurfaceHolder.mSurface = new Surface(); 1344 } finally { 1345 mSurfaceHolder.mSurfaceLock.unlock(); 1346 } 1347 } 1348 } 1349 1350 if (hwInitialized || ((windowShouldResize || params != null) && 1351 mAttachInfo.mHardwareRenderer != null && 1352 mAttachInfo.mHardwareRenderer.isEnabled())) { 1353 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1354 if (!hwInitialized) { 1355 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1356 } 1357 } 1358 1359 if (!mStopped) { 1360 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1361 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1362 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1363 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1364 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1365 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1366 1367 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1368 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1369 + " mHeight=" + mHeight 1370 + " measuredHeight=" + host.getMeasuredHeight() 1371 + " coveredInsetsChanged=" + contentInsetsChanged); 1372 1373 // Ask host how big it wants to be 1374 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1375 1376 // Implementation of weights from WindowManager.LayoutParams 1377 // We just grow the dimensions as needed and re-measure if 1378 // needs be 1379 int width = host.getMeasuredWidth(); 1380 int height = host.getMeasuredHeight(); 1381 boolean measureAgain = false; 1382 1383 if (lp.horizontalWeight > 0.0f) { 1384 width += (int) ((mWidth - width) * lp.horizontalWeight); 1385 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1386 MeasureSpec.EXACTLY); 1387 measureAgain = true; 1388 } 1389 if (lp.verticalWeight > 0.0f) { 1390 height += (int) ((mHeight - height) * lp.verticalWeight); 1391 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1392 MeasureSpec.EXACTLY); 1393 measureAgain = true; 1394 } 1395 1396 if (measureAgain) { 1397 if (DEBUG_LAYOUT) Log.v(TAG, 1398 "And hey let's measure once more: width=" + width 1399 + " height=" + height); 1400 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1401 } 1402 1403 mLayoutRequested = true; 1404 } 1405 } 1406 } 1407 1408 final boolean didLayout = mLayoutRequested && !mStopped; 1409 boolean triggerGlobalLayoutListener = didLayout 1410 || attachInfo.mRecomputeGlobalAttributes; 1411 if (didLayout) { 1412 mLayoutRequested = false; 1413 mScrollMayChange = true; 1414 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1415 TAG, "Laying out " + host + " to (" + 1416 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1417 long startTime = 0L; 1418 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1419 startTime = SystemClock.elapsedRealtime(); 1420 } 1421 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1422 1423 if (false && ViewDebug.consistencyCheckEnabled) { 1424 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1425 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1426 + "please refer to the logs with the tag " 1427 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1428 } 1429 } 1430 1431 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1432 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1433 } 1434 1435 // By this point all views have been sized and positionned 1436 // We can compute the transparent area 1437 1438 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1439 // start out transparent 1440 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1441 host.getLocationInWindow(mTmpLocation); 1442 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1443 mTmpLocation[0] + host.mRight - host.mLeft, 1444 mTmpLocation[1] + host.mBottom - host.mTop); 1445 1446 host.gatherTransparentRegion(mTransparentRegion); 1447 if (mTranslator != null) { 1448 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1449 } 1450 1451 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1452 mPreviousTransparentRegion.set(mTransparentRegion); 1453 // reconfigure window manager 1454 try { 1455 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1456 } catch (RemoteException e) { 1457 } 1458 } 1459 } 1460 1461 if (DBG) { 1462 System.out.println("======================================"); 1463 System.out.println("performTraversals -- after setFrame"); 1464 host.debug(); 1465 } 1466 } 1467 1468 if (triggerGlobalLayoutListener) { 1469 attachInfo.mRecomputeGlobalAttributes = false; 1470 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1471 1472 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1473 postSendWindowContentChangedCallback(); 1474 } 1475 } 1476 1477 if (computesInternalInsets) { 1478 // Clear the original insets. 1479 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1480 insets.reset(); 1481 1482 // Compute new insets in place. 1483 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1484 1485 // Tell the window manager. 1486 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1487 mLastGivenInsets.set(insets); 1488 1489 // Translate insets to screen coordinates if needed. 1490 final Rect contentInsets; 1491 final Rect visibleInsets; 1492 final Region touchableRegion; 1493 if (mTranslator != null) { 1494 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1495 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1496 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1497 } else { 1498 contentInsets = insets.contentInsets; 1499 visibleInsets = insets.visibleInsets; 1500 touchableRegion = insets.touchableRegion; 1501 } 1502 1503 try { 1504 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1505 contentInsets, visibleInsets, touchableRegion); 1506 } catch (RemoteException e) { 1507 } 1508 } 1509 } 1510 1511 if (mFirst) { 1512 // handle first focus request 1513 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1514 + mView.hasFocus()); 1515 if (mView != null) { 1516 if (!mView.hasFocus()) { 1517 mView.requestFocus(View.FOCUS_FORWARD); 1518 mFocusedView = mRealFocusedView = mView.findFocus(); 1519 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1520 + mFocusedView); 1521 } else { 1522 mRealFocusedView = mView.findFocus(); 1523 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1524 + mRealFocusedView); 1525 } 1526 } 1527 } 1528 1529 mFirst = false; 1530 mWillDrawSoon = false; 1531 mNewSurfaceNeeded = false; 1532 mViewVisibility = viewVisibility; 1533 1534 if (mAttachInfo.mHasWindowFocus) { 1535 final boolean imTarget = WindowManager.LayoutParams 1536 .mayUseInputMethod(mWindowAttributes.flags); 1537 if (imTarget != mLastWasImTarget) { 1538 mLastWasImTarget = imTarget; 1539 InputMethodManager imm = InputMethodManager.peekInstance(); 1540 if (imm != null && imTarget) { 1541 imm.startGettingWindowFocus(mView); 1542 imm.onWindowFocus(mView, mView.findFocus(), 1543 mWindowAttributes.softInputMode, 1544 !mHasHadWindowFocus, mWindowAttributes.flags); 1545 } 1546 } 1547 } 1548 1549 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1550 viewVisibility != View.VISIBLE; 1551 1552 if (!cancelDraw && !newSurface) { 1553 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1554 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1555 mPendingTransitions.get(i).startChangingAnimations(); 1556 } 1557 mPendingTransitions.clear(); 1558 } 1559 mFullRedrawNeeded = false; 1560 1561 final long drawStartTime; 1562 if (ViewDebug.DEBUG_LATENCY) { 1563 drawStartTime = System.nanoTime(); 1564 } 1565 1566 draw(fullRedrawNeeded); 1567 1568 if (ViewDebug.DEBUG_LATENCY) { 1569 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1570 } 1571 1572 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1573 || mReportNextDraw) { 1574 if (LOCAL_LOGV) { 1575 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1576 } 1577 mReportNextDraw = false; 1578 if (mSurfaceHolder != null && mSurface.isValid()) { 1579 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1580 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1581 if (callbacks != null) { 1582 for (SurfaceHolder.Callback c : callbacks) { 1583 if (c instanceof SurfaceHolder.Callback2) { 1584 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1585 mSurfaceHolder); 1586 } 1587 } 1588 } 1589 } 1590 try { 1591 sWindowSession.finishDrawing(mWindow); 1592 } catch (RemoteException e) { 1593 } 1594 } 1595 } else { 1596 // We were supposed to report when we are done drawing. Since we canceled the 1597 // draw, remember it here. 1598 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1599 mReportNextDraw = true; 1600 } 1601 if (fullRedrawNeeded) { 1602 mFullRedrawNeeded = true; 1603 } 1604 1605 if (viewVisibility == View.VISIBLE) { 1606 // Try again 1607 scheduleTraversals(); 1608 } 1609 } 1610 } 1611 1612 public void requestTransparentRegion(View child) { 1613 // the test below should not fail unless someone is messing with us 1614 checkThread(); 1615 if (mView == child) { 1616 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1617 // Need to make sure we re-evaluate the window attributes next 1618 // time around, to ensure the window has the correct format. 1619 mWindowAttributesChanged = true; 1620 requestLayout(); 1621 } 1622 } 1623 1624 /** 1625 * Figures out the measure spec for the root view in a window based on it's 1626 * layout params. 1627 * 1628 * @param windowSize 1629 * The available width or height of the window 1630 * 1631 * @param rootDimension 1632 * The layout params for one dimension (width or height) of the 1633 * window. 1634 * 1635 * @return The measure spec to use to measure the root view. 1636 */ 1637 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1638 int measureSpec; 1639 switch (rootDimension) { 1640 1641 case ViewGroup.LayoutParams.MATCH_PARENT: 1642 // Window can't resize. Force root view to be windowSize. 1643 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1644 break; 1645 case ViewGroup.LayoutParams.WRAP_CONTENT: 1646 // Window can resize. Set max size for root view. 1647 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1648 break; 1649 default: 1650 // Window wants to be an exact size. Force root view to be that size. 1651 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1652 break; 1653 } 1654 return measureSpec; 1655 } 1656 1657 int mHardwareYOffset; 1658 int mResizeAlpha; 1659 final Paint mResizePaint = new Paint(); 1660 1661 public void onHardwarePreDraw(HardwareCanvas canvas) { 1662 canvas.translate(0, -mHardwareYOffset); 1663 } 1664 1665 public void onHardwarePostDraw(HardwareCanvas canvas) { 1666 if (mResizeBuffer != null) { 1667 mResizePaint.setAlpha(mResizeAlpha); 1668 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1669 } 1670 } 1671 1672 /** 1673 * @hide 1674 */ 1675 void outputDisplayList(View view) { 1676 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1677 DisplayList displayList = view.getDisplayList(); 1678 if (displayList != null) { 1679 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1680 } 1681 } 1682 } 1683 1684 /** 1685 * @see #PROPERTY_PROFILE_RENDERING 1686 */ 1687 private void profileRendering(boolean enabled) { 1688 if (mProfileRendering) { 1689 mRenderProfilingEnabled = enabled; 1690 if (mRenderProfiler == null) { 1691 mRenderProfiler = new Thread(new Runnable() { 1692 @Override 1693 public void run() { 1694 Log.d(TAG, "Starting profiling thread"); 1695 while (mRenderProfilingEnabled) { 1696 mAttachInfo.mHandler.post(new Runnable() { 1697 @Override 1698 public void run() { 1699 mDirty.set(0, 0, mWidth, mHeight); 1700 scheduleTraversals(); 1701 } 1702 }); 1703 try { 1704 // TODO: This should use vsync when we get an API 1705 Thread.sleep(15); 1706 } catch (InterruptedException e) { 1707 Log.d(TAG, "Exiting profiling thread"); 1708 } 1709 } 1710 } 1711 }, "Rendering Profiler"); 1712 mRenderProfiler.start(); 1713 } else { 1714 mRenderProfiler.interrupt(); 1715 mRenderProfiler = null; 1716 } 1717 } 1718 } 1719 1720 private void draw(boolean fullRedrawNeeded) { 1721 Surface surface = mSurface; 1722 if (surface == null || !surface.isValid()) { 1723 return; 1724 } 1725 1726 if (!sFirstDrawComplete) { 1727 synchronized (sFirstDrawHandlers) { 1728 sFirstDrawComplete = true; 1729 final int count = sFirstDrawHandlers.size(); 1730 for (int i = 0; i< count; i++) { 1731 post(sFirstDrawHandlers.get(i)); 1732 } 1733 } 1734 } 1735 1736 scrollToRectOrFocus(null, false); 1737 1738 if (mAttachInfo.mViewScrollChanged) { 1739 mAttachInfo.mViewScrollChanged = false; 1740 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1741 } 1742 1743 int yoff; 1744 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1745 if (animating) { 1746 yoff = mScroller.getCurrY(); 1747 } else { 1748 yoff = mScrollY; 1749 } 1750 if (mCurScrollY != yoff) { 1751 mCurScrollY = yoff; 1752 fullRedrawNeeded = true; 1753 } 1754 float appScale = mAttachInfo.mApplicationScale; 1755 boolean scalingRequired = mAttachInfo.mScalingRequired; 1756 1757 int resizeAlpha = 0; 1758 if (mResizeBuffer != null) { 1759 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1760 if (deltaTime < mResizeBufferDuration) { 1761 float amt = deltaTime/(float) mResizeBufferDuration; 1762 amt = mResizeInterpolator.getInterpolation(amt); 1763 animating = true; 1764 resizeAlpha = 255 - (int)(amt*255); 1765 } else { 1766 disposeResizeBuffer(); 1767 } 1768 } 1769 1770 Rect dirty = mDirty; 1771 if (mSurfaceHolder != null) { 1772 // The app owns the surface, we won't draw. 1773 dirty.setEmpty(); 1774 if (animating) { 1775 if (mScroller != null) { 1776 mScroller.abortAnimation(); 1777 } 1778 disposeResizeBuffer(); 1779 } 1780 return; 1781 } 1782 1783 if (fullRedrawNeeded) { 1784 mAttachInfo.mIgnoreDirtyState = true; 1785 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1786 } 1787 1788 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1789 if (!dirty.isEmpty() || mIsAnimating) { 1790 mIsAnimating = false; 1791 mHardwareYOffset = yoff; 1792 mResizeAlpha = resizeAlpha; 1793 1794 mCurrentDirty.set(dirty); 1795 mCurrentDirty.union(mPreviousDirty); 1796 mPreviousDirty.set(dirty); 1797 dirty.setEmpty(); 1798 1799 Rect currentDirty = mCurrentDirty; 1800 if (animating) { 1801 currentDirty = null; 1802 } 1803 1804 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1805 mPreviousDirty.set(0, 0, mWidth, mHeight); 1806 } 1807 } 1808 1809 if (animating) { 1810 mFullRedrawNeeded = true; 1811 scheduleTraversals(); 1812 } 1813 1814 return; 1815 } 1816 1817 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1818 Log.v(TAG, "Draw " + mView + "/" 1819 + mWindowAttributes.getTitle() 1820 + ": dirty={" + dirty.left + "," + dirty.top 1821 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1822 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1823 appScale + ", width=" + mWidth + ", height=" + mHeight); 1824 } 1825 1826 if (!dirty.isEmpty() || mIsAnimating) { 1827 Canvas canvas; 1828 try { 1829 int left = dirty.left; 1830 int top = dirty.top; 1831 int right = dirty.right; 1832 int bottom = dirty.bottom; 1833 1834 final long lockCanvasStartTime; 1835 if (ViewDebug.DEBUG_LATENCY) { 1836 lockCanvasStartTime = System.nanoTime(); 1837 } 1838 1839 canvas = surface.lockCanvas(dirty); 1840 1841 if (ViewDebug.DEBUG_LATENCY) { 1842 long now = System.nanoTime(); 1843 Log.d(TAG, "Latency: Spent " 1844 + ((now - lockCanvasStartTime) * 0.000001f) 1845 + "ms waiting for surface.lockCanvas()"); 1846 } 1847 1848 if (left != dirty.left || top != dirty.top || right != dirty.right || 1849 bottom != dirty.bottom) { 1850 mAttachInfo.mIgnoreDirtyState = true; 1851 } 1852 1853 // TODO: Do this in native 1854 canvas.setDensity(mDensity); 1855 } catch (Surface.OutOfResourcesException e) { 1856 Log.e(TAG, "OutOfResourcesException locking surface", e); 1857 try { 1858 if (!sWindowSession.outOfMemory(mWindow)) { 1859 Slog.w(TAG, "No processes killed for memory; killing self"); 1860 Process.killProcess(Process.myPid()); 1861 } 1862 } catch (RemoteException ex) { 1863 } 1864 mLayoutRequested = true; // ask wm for a new surface next time. 1865 return; 1866 } catch (IllegalArgumentException e) { 1867 Log.e(TAG, "IllegalArgumentException locking surface", e); 1868 // Don't assume this is due to out of memory, it could be 1869 // something else, and if it is something else then we could 1870 // kill stuff (or ourself) for no reason. 1871 mLayoutRequested = true; // ask wm for a new surface next time. 1872 return; 1873 } 1874 1875 try { 1876 if (!dirty.isEmpty() || mIsAnimating) { 1877 long startTime = 0L; 1878 1879 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1880 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1881 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1882 //canvas.drawARGB(255, 255, 0, 0); 1883 } 1884 1885 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1886 startTime = SystemClock.elapsedRealtime(); 1887 } 1888 1889 // If this bitmap's format includes an alpha channel, we 1890 // need to clear it before drawing so that the child will 1891 // properly re-composite its drawing on a transparent 1892 // background. This automatically respects the clip/dirty region 1893 // or 1894 // If we are applying an offset, we need to clear the area 1895 // where the offset doesn't appear to avoid having garbage 1896 // left in the blank areas. 1897 if (!canvas.isOpaque() || yoff != 0) { 1898 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1899 } 1900 1901 dirty.setEmpty(); 1902 mIsAnimating = false; 1903 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1904 mView.mPrivateFlags |= View.DRAWN; 1905 1906 if (DEBUG_DRAW) { 1907 Context cxt = mView.getContext(); 1908 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1909 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1910 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1911 } 1912 try { 1913 canvas.translate(0, -yoff); 1914 if (mTranslator != null) { 1915 mTranslator.translateCanvas(canvas); 1916 } 1917 canvas.setScreenDensity(scalingRequired 1918 ? DisplayMetrics.DENSITY_DEVICE : 0); 1919 mAttachInfo.mSetIgnoreDirtyState = false; 1920 mView.draw(canvas); 1921 } finally { 1922 if (!mAttachInfo.mSetIgnoreDirtyState) { 1923 // Only clear the flag if it was not set during the mView.draw() call 1924 mAttachInfo.mIgnoreDirtyState = false; 1925 } 1926 } 1927 1928 if (false && ViewDebug.consistencyCheckEnabled) { 1929 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1930 } 1931 1932 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1933 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1934 } 1935 } 1936 1937 } finally { 1938 surface.unlockCanvasAndPost(canvas); 1939 } 1940 } 1941 1942 if (LOCAL_LOGV) { 1943 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1944 } 1945 1946 if (animating) { 1947 mFullRedrawNeeded = true; 1948 scheduleTraversals(); 1949 } 1950 } 1951 1952 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1953 final View.AttachInfo attachInfo = mAttachInfo; 1954 final Rect ci = attachInfo.mContentInsets; 1955 final Rect vi = attachInfo.mVisibleInsets; 1956 int scrollY = 0; 1957 boolean handled = false; 1958 1959 if (vi.left > ci.left || vi.top > ci.top 1960 || vi.right > ci.right || vi.bottom > ci.bottom) { 1961 // We'll assume that we aren't going to change the scroll 1962 // offset, since we want to avoid that unless it is actually 1963 // going to make the focus visible... otherwise we scroll 1964 // all over the place. 1965 scrollY = mScrollY; 1966 // We can be called for two different situations: during a draw, 1967 // to update the scroll position if the focus has changed (in which 1968 // case 'rectangle' is null), or in response to a 1969 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1970 // is non-null and we just want to scroll to whatever that 1971 // rectangle is). 1972 View focus = mRealFocusedView; 1973 1974 // When in touch mode, focus points to the previously focused view, 1975 // which may have been removed from the view hierarchy. The following 1976 // line checks whether the view is still in our hierarchy. 1977 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1978 mRealFocusedView = null; 1979 return false; 1980 } 1981 1982 if (focus != mLastScrolledFocus) { 1983 // If the focus has changed, then ignore any requests to scroll 1984 // to a rectangle; first we want to make sure the entire focus 1985 // view is visible. 1986 rectangle = null; 1987 } 1988 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 1989 + " rectangle=" + rectangle + " ci=" + ci 1990 + " vi=" + vi); 1991 if (focus == mLastScrolledFocus && !mScrollMayChange 1992 && rectangle == null) { 1993 // Optimization: if the focus hasn't changed since last 1994 // time, and no layout has happened, then just leave things 1995 // as they are. 1996 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 1997 + mScrollY + " vi=" + vi.toShortString()); 1998 } else if (focus != null) { 1999 // We need to determine if the currently focused view is 2000 // within the visible part of the window and, if not, apply 2001 // a pan so it can be seen. 2002 mLastScrolledFocus = focus; 2003 mScrollMayChange = false; 2004 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2005 // Try to find the rectangle from the focus view. 2006 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2007 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2008 + mView.getWidth() + " h=" + mView.getHeight() 2009 + " ci=" + ci.toShortString() 2010 + " vi=" + vi.toShortString()); 2011 if (rectangle == null) { 2012 focus.getFocusedRect(mTempRect); 2013 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2014 + ": focusRect=" + mTempRect.toShortString()); 2015 if (mView instanceof ViewGroup) { 2016 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2017 focus, mTempRect); 2018 } 2019 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2020 "Focus in window: focusRect=" 2021 + mTempRect.toShortString() 2022 + " visRect=" + mVisRect.toShortString()); 2023 } else { 2024 mTempRect.set(rectangle); 2025 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2026 "Request scroll to rect: " 2027 + mTempRect.toShortString() 2028 + " visRect=" + mVisRect.toShortString()); 2029 } 2030 if (mTempRect.intersect(mVisRect)) { 2031 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2032 "Focus window visible rect: " 2033 + mTempRect.toShortString()); 2034 if (mTempRect.height() > 2035 (mView.getHeight()-vi.top-vi.bottom)) { 2036 // If the focus simply is not going to fit, then 2037 // best is probably just to leave things as-is. 2038 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2039 "Too tall; leaving scrollY=" + scrollY); 2040 } else if ((mTempRect.top-scrollY) < vi.top) { 2041 scrollY -= vi.top - (mTempRect.top-scrollY); 2042 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2043 "Top covered; scrollY=" + scrollY); 2044 } else if ((mTempRect.bottom-scrollY) 2045 > (mView.getHeight()-vi.bottom)) { 2046 scrollY += (mTempRect.bottom-scrollY) 2047 - (mView.getHeight()-vi.bottom); 2048 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2049 "Bottom covered; scrollY=" + scrollY); 2050 } 2051 handled = true; 2052 } 2053 } 2054 } 2055 } 2056 2057 if (scrollY != mScrollY) { 2058 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2059 + mScrollY + " , new=" + scrollY); 2060 if (!immediate && mResizeBuffer == null) { 2061 if (mScroller == null) { 2062 mScroller = new Scroller(mView.getContext()); 2063 } 2064 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2065 } else if (mScroller != null) { 2066 mScroller.abortAnimation(); 2067 } 2068 mScrollY = scrollY; 2069 } 2070 2071 return handled; 2072 } 2073 2074 public void requestChildFocus(View child, View focused) { 2075 checkThread(); 2076 if (mFocusedView != focused) { 2077 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2078 scheduleTraversals(); 2079 } 2080 mFocusedView = mRealFocusedView = focused; 2081 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2082 + mFocusedView); 2083 } 2084 2085 public void clearChildFocus(View child) { 2086 checkThread(); 2087 2088 View oldFocus = mFocusedView; 2089 2090 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2091 mFocusedView = mRealFocusedView = null; 2092 if (mView != null && !mView.hasFocus()) { 2093 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2094 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2095 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2096 } 2097 } else if (oldFocus != null) { 2098 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2099 } 2100 } 2101 2102 2103 public void focusableViewAvailable(View v) { 2104 checkThread(); 2105 2106 if (mView != null) { 2107 if (!mView.hasFocus()) { 2108 v.requestFocus(); 2109 } else { 2110 // the one case where will transfer focus away from the current one 2111 // is if the current view is a view group that prefers to give focus 2112 // to its children first AND the view is a descendant of it. 2113 mFocusedView = mView.findFocus(); 2114 boolean descendantsHaveDibsOnFocus = 2115 (mFocusedView instanceof ViewGroup) && 2116 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2117 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2118 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2119 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2120 v.requestFocus(); 2121 } 2122 } 2123 } 2124 } 2125 2126 public void recomputeViewAttributes(View child) { 2127 checkThread(); 2128 if (mView == child) { 2129 mAttachInfo.mRecomputeGlobalAttributes = true; 2130 if (!mWillDrawSoon) { 2131 scheduleTraversals(); 2132 } 2133 } 2134 } 2135 2136 void dispatchDetachedFromWindow() { 2137 if (mView != null && mView.mAttachInfo != null) { 2138 mView.dispatchDetachedFromWindow(); 2139 } 2140 2141 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2142 mAccessibilityManager.removeAccessibilityStateChangeListener( 2143 mAccessibilityInteractionConnectionManager); 2144 removeSendWindowContentChangedCallback(); 2145 2146 mView = null; 2147 mAttachInfo.mRootView = null; 2148 mAttachInfo.mSurface = null; 2149 2150 destroyHardwareRenderer(); 2151 2152 mSurface.release(); 2153 2154 if (mInputChannel != null) { 2155 if (mInputQueueCallback != null) { 2156 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2157 mInputQueueCallback = null; 2158 } else { 2159 InputQueue.unregisterInputChannel(mInputChannel); 2160 } 2161 } 2162 try { 2163 sWindowSession.remove(mWindow); 2164 } catch (RemoteException e) { 2165 } 2166 2167 // Dispose the input channel after removing the window so the Window Manager 2168 // doesn't interpret the input channel being closed as an abnormal termination. 2169 if (mInputChannel != null) { 2170 mInputChannel.dispose(); 2171 mInputChannel = null; 2172 } 2173 } 2174 2175 void updateConfiguration(Configuration config, boolean force) { 2176 if (DEBUG_CONFIGURATION) Log.v(TAG, 2177 "Applying new config to window " 2178 + mWindowAttributes.getTitle() 2179 + ": " + config); 2180 2181 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2182 if (ci != null) { 2183 config = new Configuration(config); 2184 ci.applyToConfiguration(config); 2185 } 2186 2187 synchronized (sConfigCallbacks) { 2188 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2189 sConfigCallbacks.get(i).onConfigurationChanged(config); 2190 } 2191 } 2192 if (mView != null) { 2193 // At this point the resources have been updated to 2194 // have the most recent config, whatever that is. Use 2195 // the on in them which may be newer. 2196 config = mView.getResources().getConfiguration(); 2197 if (force || mLastConfiguration.diff(config) != 0) { 2198 mLastConfiguration.setTo(config); 2199 mView.dispatchConfigurationChanged(config); 2200 } 2201 } 2202 } 2203 2204 /** 2205 * Return true if child is an ancestor of parent, (or equal to the parent). 2206 */ 2207 private static boolean isViewDescendantOf(View child, View parent) { 2208 if (child == parent) { 2209 return true; 2210 } 2211 2212 final ViewParent theParent = child.getParent(); 2213 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2214 } 2215 2216 private static void forceLayout(View view) { 2217 view.forceLayout(); 2218 if (view instanceof ViewGroup) { 2219 ViewGroup group = (ViewGroup) view; 2220 final int count = group.getChildCount(); 2221 for (int i = 0; i < count; i++) { 2222 forceLayout(group.getChildAt(i)); 2223 } 2224 } 2225 } 2226 2227 public final static int DO_TRAVERSAL = 1000; 2228 public final static int DIE = 1001; 2229 public final static int RESIZED = 1002; 2230 public final static int RESIZED_REPORT = 1003; 2231 public final static int WINDOW_FOCUS_CHANGED = 1004; 2232 public final static int DISPATCH_KEY = 1005; 2233 public final static int DISPATCH_POINTER = 1006; 2234 public final static int DISPATCH_TRACKBALL = 1007; 2235 public final static int DISPATCH_APP_VISIBILITY = 1008; 2236 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2237 public final static int FINISHED_EVENT = 1010; 2238 public final static int DISPATCH_KEY_FROM_IME = 1011; 2239 public final static int FINISH_INPUT_CONNECTION = 1012; 2240 public final static int CHECK_FOCUS = 1013; 2241 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2242 public final static int DISPATCH_DRAG_EVENT = 1015; 2243 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2244 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2245 public final static int DISPATCH_GENERIC_MOTION = 1018; 2246 public final static int UPDATE_CONFIGURATION = 1019; 2247 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2248 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2249 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2250 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2251 2252 @Override 2253 public String getMessageName(Message message) { 2254 switch (message.what) { 2255 case DO_TRAVERSAL: 2256 return "DO_TRAVERSAL"; 2257 case DIE: 2258 return "DIE"; 2259 case RESIZED: 2260 return "RESIZED"; 2261 case RESIZED_REPORT: 2262 return "RESIZED_REPORT"; 2263 case WINDOW_FOCUS_CHANGED: 2264 return "WINDOW_FOCUS_CHANGED"; 2265 case DISPATCH_KEY: 2266 return "DISPATCH_KEY"; 2267 case DISPATCH_POINTER: 2268 return "DISPATCH_POINTER"; 2269 case DISPATCH_TRACKBALL: 2270 return "DISPATCH_TRACKBALL"; 2271 case DISPATCH_APP_VISIBILITY: 2272 return "DISPATCH_APP_VISIBILITY"; 2273 case DISPATCH_GET_NEW_SURFACE: 2274 return "DISPATCH_GET_NEW_SURFACE"; 2275 case FINISHED_EVENT: 2276 return "FINISHED_EVENT"; 2277 case DISPATCH_KEY_FROM_IME: 2278 return "DISPATCH_KEY_FROM_IME"; 2279 case FINISH_INPUT_CONNECTION: 2280 return "FINISH_INPUT_CONNECTION"; 2281 case CHECK_FOCUS: 2282 return "CHECK_FOCUS"; 2283 case CLOSE_SYSTEM_DIALOGS: 2284 return "CLOSE_SYSTEM_DIALOGS"; 2285 case DISPATCH_DRAG_EVENT: 2286 return "DISPATCH_DRAG_EVENT"; 2287 case DISPATCH_DRAG_LOCATION_EVENT: 2288 return "DISPATCH_DRAG_LOCATION_EVENT"; 2289 case DISPATCH_SYSTEM_UI_VISIBILITY: 2290 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2291 case DISPATCH_GENERIC_MOTION: 2292 return "DISPATCH_GENERIC_MOTION"; 2293 case UPDATE_CONFIGURATION: 2294 return "UPDATE_CONFIGURATION"; 2295 case DO_PERFORM_ACCESSIBILITY_ACTION: 2296 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2297 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2298 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2299 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2300 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2301 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2302 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2303 2304 } 2305 return super.getMessageName(message); 2306 } 2307 2308 @Override 2309 public void handleMessage(Message msg) { 2310 switch (msg.what) { 2311 case View.AttachInfo.INVALIDATE_MSG: 2312 ((View) msg.obj).invalidate(); 2313 break; 2314 case View.AttachInfo.INVALIDATE_RECT_MSG: 2315 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2316 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2317 info.release(); 2318 break; 2319 case DO_TRAVERSAL: 2320 if (mProfile) { 2321 Debug.startMethodTracing("ViewAncestor"); 2322 } 2323 2324 final long traversalStartTime; 2325 if (ViewDebug.DEBUG_LATENCY) { 2326 traversalStartTime = System.nanoTime(); 2327 mLastDrawDurationNanos = 0; 2328 } 2329 2330 performTraversals(); 2331 2332 if (ViewDebug.DEBUG_LATENCY) { 2333 long now = System.nanoTime(); 2334 Log.d(TAG, "Latency: Spent " 2335 + ((now - traversalStartTime) * 0.000001f) 2336 + "ms in performTraversals(), with " 2337 + (mLastDrawDurationNanos * 0.000001f) 2338 + "ms of that time in draw()"); 2339 mLastTraversalFinishedTimeNanos = now; 2340 } 2341 2342 if (mProfile) { 2343 Debug.stopMethodTracing(); 2344 mProfile = false; 2345 } 2346 break; 2347 case FINISHED_EVENT: 2348 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2349 break; 2350 case DISPATCH_KEY: 2351 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2352 break; 2353 case DISPATCH_POINTER: 2354 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2355 break; 2356 case DISPATCH_TRACKBALL: 2357 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2358 break; 2359 case DISPATCH_GENERIC_MOTION: 2360 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2361 break; 2362 case DISPATCH_APP_VISIBILITY: 2363 handleAppVisibility(msg.arg1 != 0); 2364 break; 2365 case DISPATCH_GET_NEW_SURFACE: 2366 handleGetNewSurface(); 2367 break; 2368 case RESIZED: 2369 ResizedInfo ri = (ResizedInfo)msg.obj; 2370 2371 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2372 && mPendingContentInsets.equals(ri.coveredInsets) 2373 && mPendingVisibleInsets.equals(ri.visibleInsets) 2374 && ((ResizedInfo)msg.obj).newConfig == null) { 2375 break; 2376 } 2377 // fall through... 2378 case RESIZED_REPORT: 2379 if (mAdded) { 2380 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2381 if (config != null) { 2382 updateConfiguration(config, false); 2383 } 2384 mWinFrame.left = 0; 2385 mWinFrame.right = msg.arg1; 2386 mWinFrame.top = 0; 2387 mWinFrame.bottom = msg.arg2; 2388 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2389 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2390 if (msg.what == RESIZED_REPORT) { 2391 mReportNextDraw = true; 2392 } 2393 2394 if (mView != null) { 2395 forceLayout(mView); 2396 } 2397 requestLayout(); 2398 } 2399 break; 2400 case WINDOW_FOCUS_CHANGED: { 2401 if (mAdded) { 2402 boolean hasWindowFocus = msg.arg1 != 0; 2403 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2404 2405 profileRendering(hasWindowFocus); 2406 2407 if (hasWindowFocus) { 2408 boolean inTouchMode = msg.arg2 != 0; 2409 ensureTouchModeLocally(inTouchMode); 2410 2411 if (mAttachInfo.mHardwareRenderer != null && 2412 mSurface != null && mSurface.isValid()) { 2413 mFullRedrawNeeded = true; 2414 try { 2415 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2416 mAttachInfo, mHolder); 2417 } catch (Surface.OutOfResourcesException e) { 2418 Log.e(TAG, "OutOfResourcesException locking surface", e); 2419 try { 2420 if (!sWindowSession.outOfMemory(mWindow)) { 2421 Slog.w(TAG, "No processes killed for memory; killing self"); 2422 Process.killProcess(Process.myPid()); 2423 } 2424 } catch (RemoteException ex) { 2425 } 2426 // Retry in a bit. 2427 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2428 return; 2429 } 2430 } 2431 } 2432 2433 mLastWasImTarget = WindowManager.LayoutParams 2434 .mayUseInputMethod(mWindowAttributes.flags); 2435 2436 InputMethodManager imm = InputMethodManager.peekInstance(); 2437 if (mView != null) { 2438 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2439 imm.startGettingWindowFocus(mView); 2440 } 2441 mAttachInfo.mKeyDispatchState.reset(); 2442 mView.dispatchWindowFocusChanged(hasWindowFocus); 2443 } 2444 2445 // Note: must be done after the focus change callbacks, 2446 // so all of the view state is set up correctly. 2447 if (hasWindowFocus) { 2448 if (imm != null && mLastWasImTarget) { 2449 imm.onWindowFocus(mView, mView.findFocus(), 2450 mWindowAttributes.softInputMode, 2451 !mHasHadWindowFocus, mWindowAttributes.flags); 2452 } 2453 // Clear the forward bit. We can just do this directly, since 2454 // the window manager doesn't care about it. 2455 mWindowAttributes.softInputMode &= 2456 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2457 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2458 .softInputMode &= 2459 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2460 mHasHadWindowFocus = true; 2461 } 2462 2463 if (hasWindowFocus && mView != null) { 2464 sendAccessibilityEvents(); 2465 } 2466 } 2467 } break; 2468 case DIE: 2469 doDie(); 2470 break; 2471 case DISPATCH_KEY_FROM_IME: { 2472 if (LOCAL_LOGV) Log.v( 2473 TAG, "Dispatching key " 2474 + msg.obj + " from IME to " + mView); 2475 KeyEvent event = (KeyEvent)msg.obj; 2476 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2477 // The IME is trying to say this event is from the 2478 // system! Bad bad bad! 2479 //noinspection UnusedAssignment 2480 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2481 } 2482 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2483 } break; 2484 case FINISH_INPUT_CONNECTION: { 2485 InputMethodManager imm = InputMethodManager.peekInstance(); 2486 if (imm != null) { 2487 imm.reportFinishInputConnection((InputConnection)msg.obj); 2488 } 2489 } break; 2490 case CHECK_FOCUS: { 2491 InputMethodManager imm = InputMethodManager.peekInstance(); 2492 if (imm != null) { 2493 imm.checkFocus(); 2494 } 2495 } break; 2496 case CLOSE_SYSTEM_DIALOGS: { 2497 if (mView != null) { 2498 mView.onCloseSystemDialogs((String)msg.obj); 2499 } 2500 } break; 2501 case DISPATCH_DRAG_EVENT: 2502 case DISPATCH_DRAG_LOCATION_EVENT: { 2503 DragEvent event = (DragEvent)msg.obj; 2504 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2505 handleDragEvent(event); 2506 } break; 2507 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2508 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2509 } break; 2510 case UPDATE_CONFIGURATION: { 2511 Configuration config = (Configuration)msg.obj; 2512 if (config.isOtherSeqNewer(mLastConfiguration)) { 2513 config = mLastConfiguration; 2514 } 2515 updateConfiguration(config, false); 2516 } break; 2517 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2518 if (mView != null) { 2519 getAccessibilityInteractionController() 2520 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2521 } 2522 } break; 2523 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2524 if (mView != null) { 2525 getAccessibilityInteractionController() 2526 .perfromAccessibilityActionUiThread(msg); 2527 } 2528 } break; 2529 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2530 if (mView != null) { 2531 getAccessibilityInteractionController() 2532 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2533 } 2534 } break; 2535 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2536 if (mView != null) { 2537 getAccessibilityInteractionController() 2538 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2539 } 2540 } break; 2541 } 2542 } 2543 2544 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2545 if (mFinishedCallback != null) { 2546 Slog.w(TAG, "Received a new input event from the input queue but there is " 2547 + "already an unfinished input event in progress."); 2548 } 2549 2550 if (ViewDebug.DEBUG_LATENCY) { 2551 mInputEventReceiveTimeNanos = System.nanoTime(); 2552 mInputEventDeliverTimeNanos = 0; 2553 mInputEventDeliverPostImeTimeNanos = 0; 2554 } 2555 2556 mFinishedCallback = finishedCallback; 2557 } 2558 2559 private void finishInputEvent(InputEvent event, boolean handled) { 2560 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2561 2562 if (mFinishedCallback == null) { 2563 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2564 + "is finished but there is no input event actually in progress."); 2565 return; 2566 } 2567 2568 if (ViewDebug.DEBUG_LATENCY) { 2569 final long now = System.nanoTime(); 2570 final long eventTime = event.getEventTimeNano(); 2571 final StringBuilder msg = new StringBuilder(); 2572 msg.append("Latency: Spent "); 2573 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2574 msg.append("ms processing "); 2575 if (event instanceof KeyEvent) { 2576 final KeyEvent keyEvent = (KeyEvent)event; 2577 msg.append("key event, action="); 2578 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2579 } else { 2580 final MotionEvent motionEvent = (MotionEvent)event; 2581 msg.append("motion event, action="); 2582 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2583 msg.append(", historySize="); 2584 msg.append(motionEvent.getHistorySize()); 2585 } 2586 msg.append(", handled="); 2587 msg.append(handled); 2588 msg.append(", received at +"); 2589 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2590 if (mInputEventDeliverTimeNanos != 0) { 2591 msg.append("ms, delivered at +"); 2592 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2593 } 2594 if (mInputEventDeliverPostImeTimeNanos != 0) { 2595 msg.append("ms, delivered post IME at +"); 2596 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2597 } 2598 msg.append("ms, finished at +"); 2599 msg.append((now - eventTime) * 0.000001f); 2600 msg.append("ms."); 2601 Log.d(TAG, msg.toString()); 2602 } 2603 2604 mFinishedCallback.finished(handled); 2605 mFinishedCallback = null; 2606 } 2607 2608 /** 2609 * Something in the current window tells us we need to change the touch mode. For 2610 * example, we are not in touch mode, and the user touches the screen. 2611 * 2612 * If the touch mode has changed, tell the window manager, and handle it locally. 2613 * 2614 * @param inTouchMode Whether we want to be in touch mode. 2615 * @return True if the touch mode changed and focus changed was changed as a result 2616 */ 2617 boolean ensureTouchMode(boolean inTouchMode) { 2618 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2619 + "touch mode is " + mAttachInfo.mInTouchMode); 2620 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2621 2622 // tell the window manager 2623 try { 2624 sWindowSession.setInTouchMode(inTouchMode); 2625 } catch (RemoteException e) { 2626 throw new RuntimeException(e); 2627 } 2628 2629 // handle the change 2630 return ensureTouchModeLocally(inTouchMode); 2631 } 2632 2633 /** 2634 * Ensure that the touch mode for this window is set, and if it is changing, 2635 * take the appropriate action. 2636 * @param inTouchMode Whether we want to be in touch mode. 2637 * @return True if the touch mode changed and focus changed was changed as a result 2638 */ 2639 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2640 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2641 + "touch mode is " + mAttachInfo.mInTouchMode); 2642 2643 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2644 2645 mAttachInfo.mInTouchMode = inTouchMode; 2646 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2647 2648 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2649 } 2650 2651 private boolean enterTouchMode() { 2652 if (mView != null) { 2653 if (mView.hasFocus()) { 2654 // note: not relying on mFocusedView here because this could 2655 // be when the window is first being added, and mFocused isn't 2656 // set yet. 2657 final View focused = mView.findFocus(); 2658 if (focused != null && !focused.isFocusableInTouchMode()) { 2659 2660 final ViewGroup ancestorToTakeFocus = 2661 findAncestorToTakeFocusInTouchMode(focused); 2662 if (ancestorToTakeFocus != null) { 2663 // there is an ancestor that wants focus after its descendants that 2664 // is focusable in touch mode.. give it focus 2665 return ancestorToTakeFocus.requestFocus(); 2666 } else { 2667 // nothing appropriate to have focus in touch mode, clear it out 2668 mView.unFocus(); 2669 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2670 mFocusedView = null; 2671 return true; 2672 } 2673 } 2674 } 2675 } 2676 return false; 2677 } 2678 2679 2680 /** 2681 * Find an ancestor of focused that wants focus after its descendants and is 2682 * focusable in touch mode. 2683 * @param focused The currently focused view. 2684 * @return An appropriate view, or null if no such view exists. 2685 */ 2686 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2687 ViewParent parent = focused.getParent(); 2688 while (parent instanceof ViewGroup) { 2689 final ViewGroup vgParent = (ViewGroup) parent; 2690 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2691 && vgParent.isFocusableInTouchMode()) { 2692 return vgParent; 2693 } 2694 if (vgParent.isRootNamespace()) { 2695 return null; 2696 } else { 2697 parent = vgParent.getParent(); 2698 } 2699 } 2700 return null; 2701 } 2702 2703 private boolean leaveTouchMode() { 2704 if (mView != null) { 2705 if (mView.hasFocus()) { 2706 // i learned the hard way to not trust mFocusedView :) 2707 mFocusedView = mView.findFocus(); 2708 if (!(mFocusedView instanceof ViewGroup)) { 2709 // some view has focus, let it keep it 2710 return false; 2711 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2712 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2713 // some view group has focus, and doesn't prefer its children 2714 // over itself for focus, so let them keep it. 2715 return false; 2716 } 2717 } 2718 2719 // find the best view to give focus to in this brave new non-touch-mode 2720 // world 2721 final View focused = focusSearch(null, View.FOCUS_DOWN); 2722 if (focused != null) { 2723 return focused.requestFocus(View.FOCUS_DOWN); 2724 } 2725 } 2726 return false; 2727 } 2728 2729 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2730 if (ViewDebug.DEBUG_LATENCY) { 2731 mInputEventDeliverTimeNanos = System.nanoTime(); 2732 } 2733 2734 final boolean isTouchEvent = event.isTouchEvent(); 2735 if (mInputEventConsistencyVerifier != null) { 2736 if (isTouchEvent) { 2737 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2738 } else { 2739 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2740 } 2741 } 2742 2743 // If there is no view, then the event will not be handled. 2744 if (mView == null || !mAdded) { 2745 finishMotionEvent(event, sendDone, false); 2746 return; 2747 } 2748 2749 // Translate the pointer event for compatibility, if needed. 2750 if (mTranslator != null) { 2751 mTranslator.translateEventInScreenToAppWindow(event); 2752 } 2753 2754 // Enter touch mode on down or scroll. 2755 final int action = event.getAction(); 2756 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2757 ensureTouchMode(true); 2758 } 2759 2760 // Offset the scroll position. 2761 if (mCurScrollY != 0) { 2762 event.offsetLocation(0, mCurScrollY); 2763 } 2764 if (MEASURE_LATENCY) { 2765 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2766 } 2767 2768 // Remember the touch position for possible drag-initiation. 2769 if (isTouchEvent) { 2770 mLastTouchPoint.x = event.getRawX(); 2771 mLastTouchPoint.y = event.getRawY(); 2772 } 2773 2774 // Dispatch touch to view hierarchy. 2775 boolean handled = mView.dispatchPointerEvent(event); 2776 if (MEASURE_LATENCY) { 2777 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2778 } 2779 if (handled) { 2780 finishMotionEvent(event, sendDone, true); 2781 return; 2782 } 2783 2784 // Pointer event was unhandled. 2785 finishMotionEvent(event, sendDone, false); 2786 } 2787 2788 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2789 event.recycle(); 2790 if (sendDone) { 2791 finishInputEvent(event, handled); 2792 } 2793 //noinspection ConstantConditions 2794 if (LOCAL_LOGV || WATCH_POINTER) { 2795 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2796 Log.i(TAG, "Done dispatching!"); 2797 } 2798 } 2799 } 2800 2801 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2802 if (ViewDebug.DEBUG_LATENCY) { 2803 mInputEventDeliverTimeNanos = System.nanoTime(); 2804 } 2805 2806 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2807 2808 if (mInputEventConsistencyVerifier != null) { 2809 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2810 } 2811 2812 // If there is no view, then the event will not be handled. 2813 if (mView == null || !mAdded) { 2814 finishMotionEvent(event, sendDone, false); 2815 return; 2816 } 2817 2818 // Deliver the trackball event to the view. 2819 if (mView.dispatchTrackballEvent(event)) { 2820 // If we reach this, we delivered a trackball event to mView and 2821 // mView consumed it. Because we will not translate the trackball 2822 // event into a key event, touch mode will not exit, so we exit 2823 // touch mode here. 2824 ensureTouchMode(false); 2825 2826 finishMotionEvent(event, sendDone, true); 2827 mLastTrackballTime = Integer.MIN_VALUE; 2828 return; 2829 } 2830 2831 // Translate the trackball event into DPAD keys and try to deliver those. 2832 final TrackballAxis x = mTrackballAxisX; 2833 final TrackballAxis y = mTrackballAxisY; 2834 2835 long curTime = SystemClock.uptimeMillis(); 2836 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2837 // It has been too long since the last movement, 2838 // so restart at the beginning. 2839 x.reset(0); 2840 y.reset(0); 2841 mLastTrackballTime = curTime; 2842 } 2843 2844 final int action = event.getAction(); 2845 final int metaState = event.getMetaState(); 2846 switch (action) { 2847 case MotionEvent.ACTION_DOWN: 2848 x.reset(2); 2849 y.reset(2); 2850 deliverKeyEvent(new KeyEvent(curTime, curTime, 2851 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2852 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2853 InputDevice.SOURCE_KEYBOARD), false); 2854 break; 2855 case MotionEvent.ACTION_UP: 2856 x.reset(2); 2857 y.reset(2); 2858 deliverKeyEvent(new KeyEvent(curTime, curTime, 2859 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2860 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2861 InputDevice.SOURCE_KEYBOARD), false); 2862 break; 2863 } 2864 2865 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2866 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2867 + " move=" + event.getX() 2868 + " / Y=" + y.position + " step=" 2869 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2870 + " move=" + event.getY()); 2871 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2872 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2873 2874 // Generate DPAD events based on the trackball movement. 2875 // We pick the axis that has moved the most as the direction of 2876 // the DPAD. When we generate DPAD events for one axis, then the 2877 // other axis is reset -- we don't want to perform DPAD jumps due 2878 // to slight movements in the trackball when making major movements 2879 // along the other axis. 2880 int keycode = 0; 2881 int movement = 0; 2882 float accel = 1; 2883 if (xOff > yOff) { 2884 movement = x.generate((2/event.getXPrecision())); 2885 if (movement != 0) { 2886 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2887 : KeyEvent.KEYCODE_DPAD_LEFT; 2888 accel = x.acceleration; 2889 y.reset(2); 2890 } 2891 } else if (yOff > 0) { 2892 movement = y.generate((2/event.getYPrecision())); 2893 if (movement != 0) { 2894 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2895 : KeyEvent.KEYCODE_DPAD_UP; 2896 accel = y.acceleration; 2897 x.reset(2); 2898 } 2899 } 2900 2901 if (keycode != 0) { 2902 if (movement < 0) movement = -movement; 2903 int accelMovement = (int)(movement * accel); 2904 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2905 + " accelMovement=" + accelMovement 2906 + " accel=" + accel); 2907 if (accelMovement > movement) { 2908 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2909 + keycode); 2910 movement--; 2911 int repeatCount = accelMovement - movement; 2912 deliverKeyEvent(new KeyEvent(curTime, curTime, 2913 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2914 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2915 InputDevice.SOURCE_KEYBOARD), false); 2916 } 2917 while (movement > 0) { 2918 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2919 + keycode); 2920 movement--; 2921 curTime = SystemClock.uptimeMillis(); 2922 deliverKeyEvent(new KeyEvent(curTime, curTime, 2923 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2924 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2925 InputDevice.SOURCE_KEYBOARD), false); 2926 deliverKeyEvent(new KeyEvent(curTime, curTime, 2927 KeyEvent.ACTION_UP, keycode, 0, metaState, 2928 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2929 InputDevice.SOURCE_KEYBOARD), false); 2930 } 2931 mLastTrackballTime = curTime; 2932 } 2933 2934 // Unfortunately we can't tell whether the application consumed the keys, so 2935 // we always consider the trackball event handled. 2936 finishMotionEvent(event, sendDone, true); 2937 } 2938 2939 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2940 if (ViewDebug.DEBUG_LATENCY) { 2941 mInputEventDeliverTimeNanos = System.nanoTime(); 2942 } 2943 2944 if (mInputEventConsistencyVerifier != null) { 2945 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2946 } 2947 2948 final int source = event.getSource(); 2949 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2950 2951 // If there is no view, then the event will not be handled. 2952 if (mView == null || !mAdded) { 2953 if (isJoystick) { 2954 updateJoystickDirection(event, false); 2955 } 2956 finishMotionEvent(event, sendDone, false); 2957 return; 2958 } 2959 2960 // Deliver the event to the view. 2961 if (mView.dispatchGenericMotionEvent(event)) { 2962 if (isJoystick) { 2963 updateJoystickDirection(event, false); 2964 } 2965 finishMotionEvent(event, sendDone, true); 2966 return; 2967 } 2968 2969 if (isJoystick) { 2970 // Translate the joystick event into DPAD keys and try to deliver those. 2971 updateJoystickDirection(event, true); 2972 finishMotionEvent(event, sendDone, true); 2973 } else { 2974 finishMotionEvent(event, sendDone, false); 2975 } 2976 } 2977 2978 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 2979 final long time = event.getEventTime(); 2980 final int metaState = event.getMetaState(); 2981 final int deviceId = event.getDeviceId(); 2982 final int source = event.getSource(); 2983 2984 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 2985 if (xDirection == 0) { 2986 xDirection = joystickAxisValueToDirection(event.getX()); 2987 } 2988 2989 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 2990 if (yDirection == 0) { 2991 yDirection = joystickAxisValueToDirection(event.getY()); 2992 } 2993 2994 if (xDirection != mLastJoystickXDirection) { 2995 if (mLastJoystickXKeyCode != 0) { 2996 deliverKeyEvent(new KeyEvent(time, time, 2997 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 2998 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 2999 mLastJoystickXKeyCode = 0; 3000 } 3001 3002 mLastJoystickXDirection = xDirection; 3003 3004 if (xDirection != 0 && synthesizeNewKeys) { 3005 mLastJoystickXKeyCode = xDirection > 0 3006 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3007 deliverKeyEvent(new KeyEvent(time, time, 3008 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3009 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3010 } 3011 } 3012 3013 if (yDirection != mLastJoystickYDirection) { 3014 if (mLastJoystickYKeyCode != 0) { 3015 deliverKeyEvent(new KeyEvent(time, time, 3016 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3017 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3018 mLastJoystickYKeyCode = 0; 3019 } 3020 3021 mLastJoystickYDirection = yDirection; 3022 3023 if (yDirection != 0 && synthesizeNewKeys) { 3024 mLastJoystickYKeyCode = yDirection > 0 3025 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3026 deliverKeyEvent(new KeyEvent(time, time, 3027 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3028 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3029 } 3030 } 3031 } 3032 3033 private static int joystickAxisValueToDirection(float value) { 3034 if (value >= 0.5f) { 3035 return 1; 3036 } else if (value <= -0.5f) { 3037 return -1; 3038 } else { 3039 return 0; 3040 } 3041 } 3042 3043 /** 3044 * Returns true if the key is used for keyboard navigation. 3045 * @param keyEvent The key event. 3046 * @return True if the key is used for keyboard navigation. 3047 */ 3048 private static boolean isNavigationKey(KeyEvent keyEvent) { 3049 switch (keyEvent.getKeyCode()) { 3050 case KeyEvent.KEYCODE_DPAD_LEFT: 3051 case KeyEvent.KEYCODE_DPAD_RIGHT: 3052 case KeyEvent.KEYCODE_DPAD_UP: 3053 case KeyEvent.KEYCODE_DPAD_DOWN: 3054 case KeyEvent.KEYCODE_DPAD_CENTER: 3055 case KeyEvent.KEYCODE_PAGE_UP: 3056 case KeyEvent.KEYCODE_PAGE_DOWN: 3057 case KeyEvent.KEYCODE_MOVE_HOME: 3058 case KeyEvent.KEYCODE_MOVE_END: 3059 case KeyEvent.KEYCODE_TAB: 3060 case KeyEvent.KEYCODE_SPACE: 3061 case KeyEvent.KEYCODE_ENTER: 3062 return true; 3063 } 3064 return false; 3065 } 3066 3067 /** 3068 * Returns true if the key is used for typing. 3069 * @param keyEvent The key event. 3070 * @return True if the key is used for typing. 3071 */ 3072 private static boolean isTypingKey(KeyEvent keyEvent) { 3073 return keyEvent.getUnicodeChar() > 0; 3074 } 3075 3076 /** 3077 * See if the key event means we should leave touch mode (and leave touch mode if so). 3078 * @param event The key event. 3079 * @return Whether this key event should be consumed (meaning the act of 3080 * leaving touch mode alone is considered the event). 3081 */ 3082 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3083 // Only relevant in touch mode. 3084 if (!mAttachInfo.mInTouchMode) { 3085 return false; 3086 } 3087 3088 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3089 final int action = event.getAction(); 3090 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3091 return false; 3092 } 3093 3094 // Don't leave touch mode if the IME told us not to. 3095 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3096 return false; 3097 } 3098 3099 // If the key can be used for keyboard navigation then leave touch mode 3100 // and select a focused view if needed (in ensureTouchMode). 3101 // When a new focused view is selected, we consume the navigation key because 3102 // navigation doesn't make much sense unless a view already has focus so 3103 // the key's purpose is to set focus. 3104 if (isNavigationKey(event)) { 3105 return ensureTouchMode(false); 3106 } 3107 3108 // If the key can be used for typing then leave touch mode 3109 // and select a focused view if needed (in ensureTouchMode). 3110 // Always allow the view to process the typing key. 3111 if (isTypingKey(event)) { 3112 ensureTouchMode(false); 3113 return false; 3114 } 3115 3116 return false; 3117 } 3118 3119 int enqueuePendingEvent(Object event, boolean sendDone) { 3120 int seq = mPendingEventSeq+1; 3121 if (seq < 0) seq = 0; 3122 mPendingEventSeq = seq; 3123 mPendingEvents.put(seq, event); 3124 return sendDone ? seq : -seq; 3125 } 3126 3127 Object retrievePendingEvent(int seq) { 3128 if (seq < 0) seq = -seq; 3129 Object event = mPendingEvents.get(seq); 3130 if (event != null) { 3131 mPendingEvents.remove(seq); 3132 } 3133 return event; 3134 } 3135 3136 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3137 if (ViewDebug.DEBUG_LATENCY) { 3138 mInputEventDeliverTimeNanos = System.nanoTime(); 3139 } 3140 3141 if (mInputEventConsistencyVerifier != null) { 3142 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3143 } 3144 3145 // If there is no view, then the event will not be handled. 3146 if (mView == null || !mAdded) { 3147 finishKeyEvent(event, sendDone, false); 3148 return; 3149 } 3150 3151 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3152 3153 // Perform predispatching before the IME. 3154 if (mView.dispatchKeyEventPreIme(event)) { 3155 finishKeyEvent(event, sendDone, true); 3156 return; 3157 } 3158 3159 // Dispatch to the IME before propagating down the view hierarchy. 3160 // The IME will eventually call back into handleFinishedEvent. 3161 if (mLastWasImTarget) { 3162 InputMethodManager imm = InputMethodManager.peekInstance(); 3163 if (imm != null) { 3164 int seq = enqueuePendingEvent(event, sendDone); 3165 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3166 + seq + " event=" + event); 3167 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3168 return; 3169 } 3170 } 3171 3172 // Not dispatching to IME, continue with post IME actions. 3173 deliverKeyEventPostIme(event, sendDone); 3174 } 3175 3176 private void handleFinishedEvent(int seq, boolean handled) { 3177 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3178 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3179 + " handled=" + handled + " event=" + event); 3180 if (event != null) { 3181 final boolean sendDone = seq >= 0; 3182 if (handled) { 3183 finishKeyEvent(event, sendDone, true); 3184 } else { 3185 deliverKeyEventPostIme(event, sendDone); 3186 } 3187 } 3188 } 3189 3190 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3191 if (ViewDebug.DEBUG_LATENCY) { 3192 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3193 } 3194 3195 // If the view went away, then the event will not be handled. 3196 if (mView == null || !mAdded) { 3197 finishKeyEvent(event, sendDone, false); 3198 return; 3199 } 3200 3201 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3202 if (checkForLeavingTouchModeAndConsume(event)) { 3203 finishKeyEvent(event, sendDone, true); 3204 return; 3205 } 3206 3207 // Make sure the fallback event policy sees all keys that will be delivered to the 3208 // view hierarchy. 3209 mFallbackEventHandler.preDispatchKeyEvent(event); 3210 3211 // Deliver the key to the view hierarchy. 3212 if (mView.dispatchKeyEvent(event)) { 3213 finishKeyEvent(event, sendDone, true); 3214 return; 3215 } 3216 3217 // If the Control modifier is held, try to interpret the key as a shortcut. 3218 if (event.getAction() == KeyEvent.ACTION_UP 3219 && event.isCtrlPressed() 3220 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3221 if (mView.dispatchKeyShortcutEvent(event)) { 3222 finishKeyEvent(event, sendDone, true); 3223 return; 3224 } 3225 } 3226 3227 // Apply the fallback event policy. 3228 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3229 finishKeyEvent(event, sendDone, true); 3230 return; 3231 } 3232 3233 // Handle automatic focus changes. 3234 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3235 int direction = 0; 3236 switch (event.getKeyCode()) { 3237 case KeyEvent.KEYCODE_DPAD_LEFT: 3238 if (event.hasNoModifiers()) { 3239 direction = View.FOCUS_LEFT; 3240 } 3241 break; 3242 case KeyEvent.KEYCODE_DPAD_RIGHT: 3243 if (event.hasNoModifiers()) { 3244 direction = View.FOCUS_RIGHT; 3245 } 3246 break; 3247 case KeyEvent.KEYCODE_DPAD_UP: 3248 if (event.hasNoModifiers()) { 3249 direction = View.FOCUS_UP; 3250 } 3251 break; 3252 case KeyEvent.KEYCODE_DPAD_DOWN: 3253 if (event.hasNoModifiers()) { 3254 direction = View.FOCUS_DOWN; 3255 } 3256 break; 3257 case KeyEvent.KEYCODE_TAB: 3258 if (event.hasNoModifiers()) { 3259 direction = View.FOCUS_FORWARD; 3260 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3261 direction = View.FOCUS_BACKWARD; 3262 } 3263 break; 3264 } 3265 3266 if (direction != 0) { 3267 View focused = mView != null ? mView.findFocus() : null; 3268 if (focused != null) { 3269 View v = focused.focusSearch(direction); 3270 if (v != null && v != focused) { 3271 // do the math the get the interesting rect 3272 // of previous focused into the coord system of 3273 // newly focused view 3274 focused.getFocusedRect(mTempRect); 3275 if (mView instanceof ViewGroup) { 3276 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3277 focused, mTempRect); 3278 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3279 v, mTempRect); 3280 } 3281 if (v.requestFocus(direction, mTempRect)) { 3282 playSoundEffect( 3283 SoundEffectConstants.getContantForFocusDirection(direction)); 3284 finishKeyEvent(event, sendDone, true); 3285 return; 3286 } 3287 } 3288 3289 // Give the focused view a last chance to handle the dpad key. 3290 if (mView.dispatchUnhandledMove(focused, direction)) { 3291 finishKeyEvent(event, sendDone, true); 3292 return; 3293 } 3294 } 3295 } 3296 } 3297 3298 // Key was unhandled. 3299 finishKeyEvent(event, sendDone, false); 3300 } 3301 3302 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3303 if (sendDone) { 3304 finishInputEvent(event, handled); 3305 } 3306 } 3307 3308 /* drag/drop */ 3309 void setLocalDragState(Object obj) { 3310 mLocalDragState = obj; 3311 } 3312 3313 private void handleDragEvent(DragEvent event) { 3314 // From the root, only drag start/end/location are dispatched. entered/exited 3315 // are determined and dispatched by the viewgroup hierarchy, who then report 3316 // that back here for ultimate reporting back to the framework. 3317 if (mView != null && mAdded) { 3318 final int what = event.mAction; 3319 3320 if (what == DragEvent.ACTION_DRAG_EXITED) { 3321 // A direct EXITED event means that the window manager knows we've just crossed 3322 // a window boundary, so the current drag target within this one must have 3323 // just been exited. Send it the usual notifications and then we're done 3324 // for now. 3325 mView.dispatchDragEvent(event); 3326 } else { 3327 // Cache the drag description when the operation starts, then fill it in 3328 // on subsequent calls as a convenience 3329 if (what == DragEvent.ACTION_DRAG_STARTED) { 3330 mCurrentDragView = null; // Start the current-recipient tracking 3331 mDragDescription = event.mClipDescription; 3332 } else { 3333 event.mClipDescription = mDragDescription; 3334 } 3335 3336 // For events with a [screen] location, translate into window coordinates 3337 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3338 mDragPoint.set(event.mX, event.mY); 3339 if (mTranslator != null) { 3340 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3341 } 3342 3343 if (mCurScrollY != 0) { 3344 mDragPoint.offset(0, mCurScrollY); 3345 } 3346 3347 event.mX = mDragPoint.x; 3348 event.mY = mDragPoint.y; 3349 } 3350 3351 // Remember who the current drag target is pre-dispatch 3352 final View prevDragView = mCurrentDragView; 3353 3354 // Now dispatch the drag/drop event 3355 boolean result = mView.dispatchDragEvent(event); 3356 3357 // If we changed apparent drag target, tell the OS about it 3358 if (prevDragView != mCurrentDragView) { 3359 try { 3360 if (prevDragView != null) { 3361 sWindowSession.dragRecipientExited(mWindow); 3362 } 3363 if (mCurrentDragView != null) { 3364 sWindowSession.dragRecipientEntered(mWindow); 3365 } 3366 } catch (RemoteException e) { 3367 Slog.e(TAG, "Unable to note drag target change"); 3368 } 3369 } 3370 3371 // Report the drop result when we're done 3372 if (what == DragEvent.ACTION_DROP) { 3373 mDragDescription = null; 3374 try { 3375 Log.i(TAG, "Reporting drop result: " + result); 3376 sWindowSession.reportDropResult(mWindow, result); 3377 } catch (RemoteException e) { 3378 Log.e(TAG, "Unable to report drop result"); 3379 } 3380 } 3381 3382 // When the drag operation ends, release any local state object 3383 // that may have been in use 3384 if (what == DragEvent.ACTION_DRAG_ENDED) { 3385 setLocalDragState(null); 3386 } 3387 } 3388 } 3389 event.recycle(); 3390 } 3391 3392 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3393 if (mView == null) return; 3394 if (mAttachInfo != null) { 3395 mAttachInfo.mSystemUiVisibility = visibility; 3396 } 3397 mView.dispatchSystemUiVisibilityChanged(visibility); 3398 } 3399 3400 public void getLastTouchPoint(Point outLocation) { 3401 outLocation.x = (int) mLastTouchPoint.x; 3402 outLocation.y = (int) mLastTouchPoint.y; 3403 } 3404 3405 public void setDragFocus(View newDragTarget) { 3406 if (mCurrentDragView != newDragTarget) { 3407 mCurrentDragView = newDragTarget; 3408 } 3409 } 3410 3411 private AudioManager getAudioManager() { 3412 if (mView == null) { 3413 throw new IllegalStateException("getAudioManager called when there is no mView"); 3414 } 3415 if (mAudioManager == null) { 3416 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3417 } 3418 return mAudioManager; 3419 } 3420 3421 public AccessibilityInteractionController getAccessibilityInteractionController() { 3422 if (mView == null) { 3423 throw new IllegalStateException("getAccessibilityInteractionController" 3424 + " called when there is no mView"); 3425 } 3426 if (mAccessibilityInteractionContrtoller == null) { 3427 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3428 } 3429 return mAccessibilityInteractionContrtoller; 3430 } 3431 3432 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3433 boolean insetsPending) throws RemoteException { 3434 3435 float appScale = mAttachInfo.mApplicationScale; 3436 boolean restore = false; 3437 if (params != null && mTranslator != null) { 3438 restore = true; 3439 params.backup(); 3440 mTranslator.translateWindowLayout(params); 3441 } 3442 if (params != null) { 3443 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3444 } 3445 mPendingConfiguration.seq = 0; 3446 //Log.d(TAG, ">>>>>> CALLING relayout"); 3447 int relayoutResult = sWindowSession.relayout( 3448 mWindow, params, 3449 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3450 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3451 viewVisibility, insetsPending, mWinFrame, 3452 mPendingContentInsets, mPendingVisibleInsets, 3453 mPendingConfiguration, mSurface); 3454 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3455 if (restore) { 3456 params.restore(); 3457 } 3458 3459 if (mTranslator != null) { 3460 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3461 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3462 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3463 } 3464 return relayoutResult; 3465 } 3466 3467 /** 3468 * {@inheritDoc} 3469 */ 3470 public void playSoundEffect(int effectId) { 3471 checkThread(); 3472 3473 try { 3474 final AudioManager audioManager = getAudioManager(); 3475 3476 switch (effectId) { 3477 case SoundEffectConstants.CLICK: 3478 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3479 return; 3480 case SoundEffectConstants.NAVIGATION_DOWN: 3481 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3482 return; 3483 case SoundEffectConstants.NAVIGATION_LEFT: 3484 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3485 return; 3486 case SoundEffectConstants.NAVIGATION_RIGHT: 3487 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3488 return; 3489 case SoundEffectConstants.NAVIGATION_UP: 3490 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3491 return; 3492 default: 3493 throw new IllegalArgumentException("unknown effect id " + effectId + 3494 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3495 } 3496 } catch (IllegalStateException e) { 3497 // Exception thrown by getAudioManager() when mView is null 3498 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3499 e.printStackTrace(); 3500 } 3501 } 3502 3503 /** 3504 * {@inheritDoc} 3505 */ 3506 public boolean performHapticFeedback(int effectId, boolean always) { 3507 try { 3508 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3509 } catch (RemoteException e) { 3510 return false; 3511 } 3512 } 3513 3514 /** 3515 * {@inheritDoc} 3516 */ 3517 public View focusSearch(View focused, int direction) { 3518 checkThread(); 3519 if (!(mView instanceof ViewGroup)) { 3520 return null; 3521 } 3522 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3523 } 3524 3525 public void debug() { 3526 mView.debug(); 3527 } 3528 3529 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3530 if (mView != null) { 3531 getGfxInfo(mView, info); 3532 } else { 3533 info[0] = info[1] = 0; 3534 } 3535 } 3536 3537 private void getGfxInfo(View view, int[] info) { 3538 DisplayList displayList = view.mDisplayList; 3539 info[0]++; 3540 if (displayList != null) { 3541 info[1] += displayList.getSize(); 3542 } 3543 3544 if (view instanceof ViewGroup) { 3545 ViewGroup group = (ViewGroup) view; 3546 3547 int count = group.getChildCount(); 3548 for (int i = 0; i < count; i++) { 3549 getGfxInfo(group.getChildAt(i), info); 3550 } 3551 } 3552 } 3553 3554 public void die(boolean immediate) { 3555 if (immediate) { 3556 doDie(); 3557 } else { 3558 sendEmptyMessage(DIE); 3559 } 3560 } 3561 3562 void doDie() { 3563 checkThread(); 3564 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3565 synchronized (this) { 3566 if (mAdded && !mFirst) { 3567 destroyHardwareRenderer(); 3568 3569 int viewVisibility = mView.getVisibility(); 3570 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3571 if (mWindowAttributesChanged || viewVisibilityChanged) { 3572 // If layout params have been changed, first give them 3573 // to the window manager to make sure it has the correct 3574 // animation info. 3575 try { 3576 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3577 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3578 sWindowSession.finishDrawing(mWindow); 3579 } 3580 } catch (RemoteException e) { 3581 } 3582 } 3583 3584 mSurface.release(); 3585 } 3586 if (mAdded) { 3587 mAdded = false; 3588 dispatchDetachedFromWindow(); 3589 } 3590 } 3591 } 3592 3593 public void requestUpdateConfiguration(Configuration config) { 3594 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3595 sendMessage(msg); 3596 } 3597 3598 private void destroyHardwareRenderer() { 3599 if (mAttachInfo.mHardwareRenderer != null) { 3600 mAttachInfo.mHardwareRenderer.destroy(true); 3601 mAttachInfo.mHardwareRenderer = null; 3602 mAttachInfo.mHardwareAccelerated = false; 3603 } 3604 } 3605 3606 public void dispatchFinishedEvent(int seq, boolean handled) { 3607 Message msg = obtainMessage(FINISHED_EVENT); 3608 msg.arg1 = seq; 3609 msg.arg2 = handled ? 1 : 0; 3610 sendMessage(msg); 3611 } 3612 3613 public void dispatchResized(int w, int h, Rect coveredInsets, 3614 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3615 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3616 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3617 + " visibleInsets=" + visibleInsets.toShortString() 3618 + " reportDraw=" + reportDraw); 3619 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3620 if (mTranslator != null) { 3621 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3622 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3623 w *= mTranslator.applicationInvertedScale; 3624 h *= mTranslator.applicationInvertedScale; 3625 } 3626 msg.arg1 = w; 3627 msg.arg2 = h; 3628 ResizedInfo ri = new ResizedInfo(); 3629 ri.coveredInsets = new Rect(coveredInsets); 3630 ri.visibleInsets = new Rect(visibleInsets); 3631 ri.newConfig = newConfig; 3632 msg.obj = ri; 3633 sendMessage(msg); 3634 } 3635 3636 private long mInputEventReceiveTimeNanos; 3637 private long mInputEventDeliverTimeNanos; 3638 private long mInputEventDeliverPostImeTimeNanos; 3639 private InputQueue.FinishedCallback mFinishedCallback; 3640 3641 private final InputHandler mInputHandler = new InputHandler() { 3642 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3643 startInputEvent(finishedCallback); 3644 dispatchKey(event, true); 3645 } 3646 3647 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3648 startInputEvent(finishedCallback); 3649 dispatchMotion(event, true); 3650 } 3651 }; 3652 3653 public void dispatchKey(KeyEvent event) { 3654 dispatchKey(event, false); 3655 } 3656 3657 private void dispatchKey(KeyEvent event, boolean sendDone) { 3658 //noinspection ConstantConditions 3659 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3660 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3661 if (DBG) Log.d("keydisp", "==================================================="); 3662 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3663 3664 debug(); 3665 3666 if (DBG) Log.d("keydisp", "==================================================="); 3667 } 3668 } 3669 3670 Message msg = obtainMessage(DISPATCH_KEY); 3671 msg.obj = event; 3672 msg.arg1 = sendDone ? 1 : 0; 3673 3674 if (LOCAL_LOGV) Log.v( 3675 TAG, "sending key " + event + " to " + mView); 3676 3677 sendMessageAtTime(msg, event.getEventTime()); 3678 } 3679 3680 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3681 int source = event.getSource(); 3682 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3683 dispatchPointer(event, sendDone); 3684 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3685 dispatchTrackball(event, sendDone); 3686 } else { 3687 dispatchGenericMotion(event, sendDone); 3688 } 3689 } 3690 3691 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3692 Message msg = obtainMessage(DISPATCH_POINTER); 3693 msg.obj = event; 3694 msg.arg1 = sendDone ? 1 : 0; 3695 sendMessageAtTime(msg, event.getEventTime()); 3696 } 3697 3698 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3699 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3700 msg.obj = event; 3701 msg.arg1 = sendDone ? 1 : 0; 3702 sendMessageAtTime(msg, event.getEventTime()); 3703 } 3704 3705 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3706 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3707 msg.obj = event; 3708 msg.arg1 = sendDone ? 1 : 0; 3709 sendMessageAtTime(msg, event.getEventTime()); 3710 } 3711 3712 public void dispatchAppVisibility(boolean visible) { 3713 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3714 msg.arg1 = visible ? 1 : 0; 3715 sendMessage(msg); 3716 } 3717 3718 public void dispatchGetNewSurface() { 3719 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3720 sendMessage(msg); 3721 } 3722 3723 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3724 Message msg = Message.obtain(); 3725 msg.what = WINDOW_FOCUS_CHANGED; 3726 msg.arg1 = hasFocus ? 1 : 0; 3727 msg.arg2 = inTouchMode ? 1 : 0; 3728 sendMessage(msg); 3729 } 3730 3731 public void dispatchCloseSystemDialogs(String reason) { 3732 Message msg = Message.obtain(); 3733 msg.what = CLOSE_SYSTEM_DIALOGS; 3734 msg.obj = reason; 3735 sendMessage(msg); 3736 } 3737 3738 public void dispatchDragEvent(DragEvent event) { 3739 final int what; 3740 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3741 what = DISPATCH_DRAG_LOCATION_EVENT; 3742 removeMessages(what); 3743 } else { 3744 what = DISPATCH_DRAG_EVENT; 3745 } 3746 Message msg = obtainMessage(what, event); 3747 sendMessage(msg); 3748 } 3749 3750 public void dispatchSystemUiVisibilityChanged(int visibility) { 3751 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3752 } 3753 3754 /** 3755 * The window is getting focus so if there is anything focused/selected 3756 * send an {@link AccessibilityEvent} to announce that. 3757 */ 3758 private void sendAccessibilityEvents() { 3759 if (!mAccessibilityManager.isEnabled()) { 3760 return; 3761 } 3762 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3763 View focusedView = mView.findFocus(); 3764 if (focusedView != null && focusedView != mView) { 3765 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3766 } 3767 } 3768 3769 /** 3770 * Post a callback to send a 3771 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3772 * This event is send at most once every 3773 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3774 */ 3775 private void postSendWindowContentChangedCallback() { 3776 if (mSendWindowContentChangedAccessibilityEvent == null) { 3777 mSendWindowContentChangedAccessibilityEvent = 3778 new SendWindowContentChangedAccessibilityEvent(); 3779 } 3780 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3781 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3782 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3783 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3784 } 3785 } 3786 3787 /** 3788 * Remove a posted callback to send a 3789 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3790 */ 3791 private void removeSendWindowContentChangedCallback() { 3792 if (mSendWindowContentChangedAccessibilityEvent != null) { 3793 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3794 } 3795 } 3796 3797 public boolean showContextMenuForChild(View originalView) { 3798 return false; 3799 } 3800 3801 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3802 return null; 3803 } 3804 3805 public void createContextMenu(ContextMenu menu) { 3806 } 3807 3808 public void childDrawableStateChanged(View child) { 3809 } 3810 3811 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3812 if (mView == null) { 3813 return false; 3814 } 3815 mAccessibilityManager.sendAccessibilityEvent(event); 3816 return true; 3817 } 3818 3819 void checkThread() { 3820 if (mThread != Thread.currentThread()) { 3821 throw new CalledFromWrongThreadException( 3822 "Only the original thread that created a view hierarchy can touch its views."); 3823 } 3824 } 3825 3826 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3827 // ViewAncestor never intercepts touch event, so this can be a no-op 3828 } 3829 3830 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3831 boolean immediate) { 3832 return scrollToRectOrFocus(rectangle, immediate); 3833 } 3834 3835 class TakenSurfaceHolder extends BaseSurfaceHolder { 3836 @Override 3837 public boolean onAllowLockCanvas() { 3838 return mDrawingAllowed; 3839 } 3840 3841 @Override 3842 public void onRelayoutContainer() { 3843 // Not currently interesting -- from changing between fixed and layout size. 3844 } 3845 3846 public void setFormat(int format) { 3847 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3848 } 3849 3850 public void setType(int type) { 3851 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3852 } 3853 3854 @Override 3855 public void onUpdateSurface() { 3856 // We take care of format and type changes on our own. 3857 throw new IllegalStateException("Shouldn't be here"); 3858 } 3859 3860 public boolean isCreating() { 3861 return mIsCreating; 3862 } 3863 3864 @Override 3865 public void setFixedSize(int width, int height) { 3866 throw new UnsupportedOperationException( 3867 "Currently only support sizing from layout"); 3868 } 3869 3870 public void setKeepScreenOn(boolean screenOn) { 3871 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3872 } 3873 } 3874 3875 static class InputMethodCallback extends IInputMethodCallback.Stub { 3876 private WeakReference<ViewRootImpl> mViewAncestor; 3877 3878 public InputMethodCallback(ViewRootImpl viewAncestor) { 3879 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3880 } 3881 3882 public void finishedEvent(int seq, boolean handled) { 3883 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3884 if (viewAncestor != null) { 3885 viewAncestor.dispatchFinishedEvent(seq, handled); 3886 } 3887 } 3888 3889 public void sessionCreated(IInputMethodSession session) { 3890 // Stub -- not for use in the client. 3891 } 3892 } 3893 3894 static class W extends IWindow.Stub { 3895 private final WeakReference<ViewRootImpl> mViewAncestor; 3896 3897 W(ViewRootImpl viewAncestor) { 3898 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3899 } 3900 3901 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3902 boolean reportDraw, Configuration newConfig) { 3903 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3904 if (viewAncestor != null) { 3905 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3906 newConfig); 3907 } 3908 } 3909 3910 public void dispatchAppVisibility(boolean visible) { 3911 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3912 if (viewAncestor != null) { 3913 viewAncestor.dispatchAppVisibility(visible); 3914 } 3915 } 3916 3917 public void dispatchGetNewSurface() { 3918 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3919 if (viewAncestor != null) { 3920 viewAncestor.dispatchGetNewSurface(); 3921 } 3922 } 3923 3924 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3925 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3926 if (viewAncestor != null) { 3927 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3928 } 3929 } 3930 3931 private static int checkCallingPermission(String permission) { 3932 try { 3933 return ActivityManagerNative.getDefault().checkPermission( 3934 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3935 } catch (RemoteException e) { 3936 return PackageManager.PERMISSION_DENIED; 3937 } 3938 } 3939 3940 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3941 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3942 if (viewAncestor != null) { 3943 final View view = viewAncestor.mView; 3944 if (view != null) { 3945 if (checkCallingPermission(Manifest.permission.DUMP) != 3946 PackageManager.PERMISSION_GRANTED) { 3947 throw new SecurityException("Insufficient permissions to invoke" 3948 + " executeCommand() from pid=" + Binder.getCallingPid() 3949 + ", uid=" + Binder.getCallingUid()); 3950 } 3951 3952 OutputStream clientStream = null; 3953 try { 3954 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3955 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3956 } catch (IOException e) { 3957 e.printStackTrace(); 3958 } finally { 3959 if (clientStream != null) { 3960 try { 3961 clientStream.close(); 3962 } catch (IOException e) { 3963 e.printStackTrace(); 3964 } 3965 } 3966 } 3967 } 3968 } 3969 } 3970 3971 public void closeSystemDialogs(String reason) { 3972 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3973 if (viewAncestor != null) { 3974 viewAncestor.dispatchCloseSystemDialogs(reason); 3975 } 3976 } 3977 3978 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 3979 boolean sync) { 3980 if (sync) { 3981 try { 3982 sWindowSession.wallpaperOffsetsComplete(asBinder()); 3983 } catch (RemoteException e) { 3984 } 3985 } 3986 } 3987 3988 public void dispatchWallpaperCommand(String action, int x, int y, 3989 int z, Bundle extras, boolean sync) { 3990 if (sync) { 3991 try { 3992 sWindowSession.wallpaperCommandComplete(asBinder(), null); 3993 } catch (RemoteException e) { 3994 } 3995 } 3996 } 3997 3998 /* Drag/drop */ 3999 public void dispatchDragEvent(DragEvent event) { 4000 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4001 if (viewAncestor != null) { 4002 viewAncestor.dispatchDragEvent(event); 4003 } 4004 } 4005 4006 public void dispatchSystemUiVisibilityChanged(int visibility) { 4007 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4008 if (viewAncestor != null) { 4009 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4010 } 4011 } 4012 } 4013 4014 /** 4015 * Maintains state information for a single trackball axis, generating 4016 * discrete (DPAD) movements based on raw trackball motion. 4017 */ 4018 static final class TrackballAxis { 4019 /** 4020 * The maximum amount of acceleration we will apply. 4021 */ 4022 static final float MAX_ACCELERATION = 20; 4023 4024 /** 4025 * The maximum amount of time (in milliseconds) between events in order 4026 * for us to consider the user to be doing fast trackball movements, 4027 * and thus apply an acceleration. 4028 */ 4029 static final long FAST_MOVE_TIME = 150; 4030 4031 /** 4032 * Scaling factor to the time (in milliseconds) between events to how 4033 * much to multiple/divide the current acceleration. When movement 4034 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4035 * FAST_MOVE_TIME it divides it. 4036 */ 4037 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4038 4039 float position; 4040 float absPosition; 4041 float acceleration = 1; 4042 long lastMoveTime = 0; 4043 int step; 4044 int dir; 4045 int nonAccelMovement; 4046 4047 void reset(int _step) { 4048 position = 0; 4049 acceleration = 1; 4050 lastMoveTime = 0; 4051 step = _step; 4052 dir = 0; 4053 } 4054 4055 /** 4056 * Add trackball movement into the state. If the direction of movement 4057 * has been reversed, the state is reset before adding the 4058 * movement (so that you don't have to compensate for any previously 4059 * collected movement before see the result of the movement in the 4060 * new direction). 4061 * 4062 * @return Returns the absolute value of the amount of movement 4063 * collected so far. 4064 */ 4065 float collect(float off, long time, String axis) { 4066 long normTime; 4067 if (off > 0) { 4068 normTime = (long)(off * FAST_MOVE_TIME); 4069 if (dir < 0) { 4070 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4071 position = 0; 4072 step = 0; 4073 acceleration = 1; 4074 lastMoveTime = 0; 4075 } 4076 dir = 1; 4077 } else if (off < 0) { 4078 normTime = (long)((-off) * FAST_MOVE_TIME); 4079 if (dir > 0) { 4080 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4081 position = 0; 4082 step = 0; 4083 acceleration = 1; 4084 lastMoveTime = 0; 4085 } 4086 dir = -1; 4087 } else { 4088 normTime = 0; 4089 } 4090 4091 // The number of milliseconds between each movement that is 4092 // considered "normal" and will not result in any acceleration 4093 // or deceleration, scaled by the offset we have here. 4094 if (normTime > 0) { 4095 long delta = time - lastMoveTime; 4096 lastMoveTime = time; 4097 float acc = acceleration; 4098 if (delta < normTime) { 4099 // The user is scrolling rapidly, so increase acceleration. 4100 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4101 if (scale > 1) acc *= scale; 4102 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4103 + off + " normTime=" + normTime + " delta=" + delta 4104 + " scale=" + scale + " acc=" + acc); 4105 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4106 } else { 4107 // The user is scrolling slowly, so decrease acceleration. 4108 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4109 if (scale > 1) acc /= scale; 4110 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4111 + off + " normTime=" + normTime + " delta=" + delta 4112 + " scale=" + scale + " acc=" + acc); 4113 acceleration = acc > 1 ? acc : 1; 4114 } 4115 } 4116 position += off; 4117 return (absPosition = Math.abs(position)); 4118 } 4119 4120 /** 4121 * Generate the number of discrete movement events appropriate for 4122 * the currently collected trackball movement. 4123 * 4124 * @param precision The minimum movement required to generate the 4125 * first discrete movement. 4126 * 4127 * @return Returns the number of discrete movements, either positive 4128 * or negative, or 0 if there is not enough trackball movement yet 4129 * for a discrete movement. 4130 */ 4131 int generate(float precision) { 4132 int movement = 0; 4133 nonAccelMovement = 0; 4134 do { 4135 final int dir = position >= 0 ? 1 : -1; 4136 switch (step) { 4137 // If we are going to execute the first step, then we want 4138 // to do this as soon as possible instead of waiting for 4139 // a full movement, in order to make things look responsive. 4140 case 0: 4141 if (absPosition < precision) { 4142 return movement; 4143 } 4144 movement += dir; 4145 nonAccelMovement += dir; 4146 step = 1; 4147 break; 4148 // If we have generated the first movement, then we need 4149 // to wait for the second complete trackball motion before 4150 // generating the second discrete movement. 4151 case 1: 4152 if (absPosition < 2) { 4153 return movement; 4154 } 4155 movement += dir; 4156 nonAccelMovement += dir; 4157 position += dir > 0 ? -2 : 2; 4158 absPosition = Math.abs(position); 4159 step = 2; 4160 break; 4161 // After the first two, we generate discrete movements 4162 // consistently with the trackball, applying an acceleration 4163 // if the trackball is moving quickly. This is a simple 4164 // acceleration on top of what we already compute based 4165 // on how quickly the wheel is being turned, to apply 4166 // a longer increasing acceleration to continuous movement 4167 // in one direction. 4168 default: 4169 if (absPosition < 1) { 4170 return movement; 4171 } 4172 movement += dir; 4173 position += dir >= 0 ? -1 : 1; 4174 absPosition = Math.abs(position); 4175 float acc = acceleration; 4176 acc *= 1.1f; 4177 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4178 break; 4179 } 4180 } while (true); 4181 } 4182 } 4183 4184 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4185 public CalledFromWrongThreadException(String msg) { 4186 super(msg); 4187 } 4188 } 4189 4190 private SurfaceHolder mHolder = new SurfaceHolder() { 4191 // we only need a SurfaceHolder for opengl. it would be nice 4192 // to implement everything else though, especially the callback 4193 // support (opengl doesn't make use of it right now, but eventually 4194 // will). 4195 public Surface getSurface() { 4196 return mSurface; 4197 } 4198 4199 public boolean isCreating() { 4200 return false; 4201 } 4202 4203 public void addCallback(Callback callback) { 4204 } 4205 4206 public void removeCallback(Callback callback) { 4207 } 4208 4209 public void setFixedSize(int width, int height) { 4210 } 4211 4212 public void setSizeFromLayout() { 4213 } 4214 4215 public void setFormat(int format) { 4216 } 4217 4218 public void setType(int type) { 4219 } 4220 4221 public void setKeepScreenOn(boolean screenOn) { 4222 } 4223 4224 public Canvas lockCanvas() { 4225 return null; 4226 } 4227 4228 public Canvas lockCanvas(Rect dirty) { 4229 return null; 4230 } 4231 4232 public void unlockCanvasAndPost(Canvas canvas) { 4233 } 4234 public Rect getSurfaceFrame() { 4235 return null; 4236 } 4237 }; 4238 4239 static RunQueue getRunQueue() { 4240 RunQueue rq = sRunQueues.get(); 4241 if (rq != null) { 4242 return rq; 4243 } 4244 rq = new RunQueue(); 4245 sRunQueues.set(rq); 4246 return rq; 4247 } 4248 4249 /** 4250 * @hide 4251 */ 4252 static final class RunQueue { 4253 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4254 4255 void post(Runnable action) { 4256 postDelayed(action, 0); 4257 } 4258 4259 void postDelayed(Runnable action, long delayMillis) { 4260 HandlerAction handlerAction = new HandlerAction(); 4261 handlerAction.action = action; 4262 handlerAction.delay = delayMillis; 4263 4264 synchronized (mActions) { 4265 mActions.add(handlerAction); 4266 } 4267 } 4268 4269 void removeCallbacks(Runnable action) { 4270 final HandlerAction handlerAction = new HandlerAction(); 4271 handlerAction.action = action; 4272 4273 synchronized (mActions) { 4274 final ArrayList<HandlerAction> actions = mActions; 4275 4276 while (actions.remove(handlerAction)) { 4277 // Keep going 4278 } 4279 } 4280 } 4281 4282 void executeActions(Handler handler) { 4283 synchronized (mActions) { 4284 final ArrayList<HandlerAction> actions = mActions; 4285 final int count = actions.size(); 4286 4287 for (int i = 0; i < count; i++) { 4288 final HandlerAction handlerAction = actions.get(i); 4289 handler.postDelayed(handlerAction.action, handlerAction.delay); 4290 } 4291 4292 actions.clear(); 4293 } 4294 } 4295 4296 private static class HandlerAction { 4297 Runnable action; 4298 long delay; 4299 4300 @Override 4301 public boolean equals(Object o) { 4302 if (this == o) return true; 4303 if (o == null || getClass() != o.getClass()) return false; 4304 4305 HandlerAction that = (HandlerAction) o; 4306 return !(action != null ? !action.equals(that.action) : that.action != null); 4307 4308 } 4309 4310 @Override 4311 public int hashCode() { 4312 int result = action != null ? action.hashCode() : 0; 4313 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4314 return result; 4315 } 4316 } 4317 } 4318 4319 /** 4320 * Class for managing the accessibility interaction connection 4321 * based on the global accessibility state. 4322 */ 4323 final class AccessibilityInteractionConnectionManager 4324 implements AccessibilityStateChangeListener { 4325 public void onAccessibilityStateChanged(boolean enabled) { 4326 if (enabled) { 4327 ensureConnection(); 4328 } else { 4329 ensureNoConnection(); 4330 } 4331 } 4332 4333 public void ensureConnection() { 4334 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4335 if (!registered) { 4336 mAttachInfo.mAccessibilityWindowId = 4337 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4338 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4339 } 4340 } 4341 4342 public void ensureNoConnection() { 4343 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4344 if (registered) { 4345 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4346 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4347 } 4348 } 4349 } 4350 4351 /** 4352 * This class is an interface this ViewAncestor provides to the 4353 * AccessibilityManagerService to the latter can interact with 4354 * the view hierarchy in this ViewAncestor. 4355 */ 4356 final class AccessibilityInteractionConnection 4357 extends IAccessibilityInteractionConnection.Stub { 4358 private final WeakReference<ViewRootImpl> mViewAncestor; 4359 4360 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4361 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4362 } 4363 4364 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4365 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4366 if (mViewAncestor.get() != null) { 4367 getAccessibilityInteractionController() 4368 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4369 interactionId, callback); 4370 } 4371 } 4372 4373 public void performAccessibilityAction(int accessibilityId, int action, 4374 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4375 if (mViewAncestor.get() != null) { 4376 getAccessibilityInteractionController() 4377 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4378 callback); 4379 } 4380 } 4381 4382 public void findAccessibilityNodeInfoByViewId(int viewId, 4383 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4384 if (mViewAncestor.get() != null) { 4385 getAccessibilityInteractionController() 4386 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback); 4387 } 4388 } 4389 4390 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4391 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4392 if (mViewAncestor.get() != null) { 4393 getAccessibilityInteractionController() 4394 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4395 interactionId, callback); 4396 } 4397 } 4398 } 4399 4400 /** 4401 * Class for managing accessibility interactions initiated from the system 4402 * and targeting the view hierarchy. A *ClientThread method is to be 4403 * called from the interaction connection this ViewAncestor gives the 4404 * system to talk to it and a corresponding *UiThread method that is executed 4405 * on the UI thread. 4406 */ 4407 final class AccessibilityInteractionController { 4408 private static final int POOL_SIZE = 5; 4409 4410 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4411 new FindByAccessibilitytIdPredicate(); 4412 4413 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4414 new ArrayList<AccessibilityNodeInfo>(); 4415 4416 // Reusable poolable arguments for interacting with the view hierarchy 4417 // to fit more arguments than Message and to avoid sharing objects between 4418 // two messages since several threads can send messages concurrently. 4419 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4420 new PoolableManager<SomeArgs>() { 4421 public SomeArgs newInstance() { 4422 return new SomeArgs(); 4423 } 4424 4425 public void onAcquired(SomeArgs info) { 4426 /* do nothing */ 4427 } 4428 4429 public void onReleased(SomeArgs info) { 4430 info.clear(); 4431 } 4432 }, POOL_SIZE) 4433 ); 4434 4435 public class SomeArgs implements Poolable<SomeArgs> { 4436 private SomeArgs mNext; 4437 private boolean mIsPooled; 4438 4439 public Object arg1; 4440 public Object arg2; 4441 public int argi1; 4442 public int argi2; 4443 public int argi3; 4444 4445 public SomeArgs getNextPoolable() { 4446 return mNext; 4447 } 4448 4449 public boolean isPooled() { 4450 return mIsPooled; 4451 } 4452 4453 public void setNextPoolable(SomeArgs args) { 4454 mNext = args; 4455 } 4456 4457 public void setPooled(boolean isPooled) { 4458 mIsPooled = isPooled; 4459 } 4460 4461 private void clear() { 4462 arg1 = null; 4463 arg2 = null; 4464 argi1 = 0; 4465 argi2 = 0; 4466 argi3 = 0; 4467 } 4468 } 4469 4470 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4471 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4472 Message message = Message.obtain(); 4473 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4474 message.arg1 = accessibilityId; 4475 message.arg2 = interactionId; 4476 message.obj = callback; 4477 sendMessage(message); 4478 } 4479 4480 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4481 final int accessibilityId = message.arg1; 4482 final int interactionId = message.arg2; 4483 final IAccessibilityInteractionConnectionCallback callback = 4484 (IAccessibilityInteractionConnectionCallback) message.obj; 4485 4486 AccessibilityNodeInfo info = null; 4487 try { 4488 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4489 predicate.init(accessibilityId); 4490 View root = ViewRootImpl.this.mView; 4491 View target = root.findViewByPredicate(predicate); 4492 if (target != null && target.isShown()) { 4493 info = target.createAccessibilityNodeInfo(); 4494 } 4495 } finally { 4496 try { 4497 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4498 } catch (RemoteException re) { 4499 /* ignore - the other side will time out */ 4500 } 4501 } 4502 } 4503 4504 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4505 IAccessibilityInteractionConnectionCallback callback) { 4506 Message message = Message.obtain(); 4507 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4508 message.arg1 = viewId; 4509 message.arg2 = interactionId; 4510 message.obj = callback; 4511 sendMessage(message); 4512 } 4513 4514 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4515 final int viewId = message.arg1; 4516 final int interactionId = message.arg2; 4517 final IAccessibilityInteractionConnectionCallback callback = 4518 (IAccessibilityInteractionConnectionCallback) message.obj; 4519 4520 AccessibilityNodeInfo info = null; 4521 try { 4522 View root = ViewRootImpl.this.mView; 4523 View target = root.findViewById(viewId); 4524 if (target != null && target.isShown()) { 4525 info = target.createAccessibilityNodeInfo(); 4526 } 4527 } finally { 4528 try { 4529 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4530 } catch (RemoteException re) { 4531 /* ignore - the other side will time out */ 4532 } 4533 } 4534 } 4535 4536 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4537 int accessibilityViewId, int interactionId, 4538 IAccessibilityInteractionConnectionCallback callback) { 4539 Message message = Message.obtain(); 4540 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4541 SomeArgs args = mPool.acquire(); 4542 args.arg1 = text; 4543 args.argi1 = accessibilityViewId; 4544 args.argi2 = interactionId; 4545 args.arg2 = callback; 4546 message.obj = args; 4547 sendMessage(message); 4548 } 4549 4550 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4551 SomeArgs args = (SomeArgs) message.obj; 4552 final String text = (String) args.arg1; 4553 final int accessibilityViewId = args.argi1; 4554 final int interactionId = args.argi2; 4555 final IAccessibilityInteractionConnectionCallback callback = 4556 (IAccessibilityInteractionConnectionCallback) args.arg2; 4557 mPool.release(args); 4558 4559 List<AccessibilityNodeInfo> infos = null; 4560 try { 4561 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4562 foundViews.clear(); 4563 4564 View root; 4565 if (accessibilityViewId != View.NO_ID) { 4566 root = findViewByAccessibilityId(accessibilityViewId); 4567 } else { 4568 root = ViewRootImpl.this.mView; 4569 } 4570 4571 if (root == null || !root.isShown()) { 4572 return; 4573 } 4574 4575 root.findViewsWithText(foundViews, text); 4576 if (foundViews.isEmpty()) { 4577 return; 4578 } 4579 4580 infos = mTempAccessibilityNodeInfoList; 4581 infos.clear(); 4582 4583 final int viewCount = foundViews.size(); 4584 for (int i = 0; i < viewCount; i++) { 4585 View foundView = foundViews.get(i); 4586 if (foundView.isShown()) { 4587 infos.add(foundView.createAccessibilityNodeInfo()); 4588 } 4589 } 4590 } finally { 4591 try { 4592 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4593 } catch (RemoteException re) { 4594 /* ignore - the other side will time out */ 4595 } 4596 } 4597 } 4598 4599 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4600 int interactionId, IAccessibilityInteractionConnectionCallback callback) { 4601 Message message = Message.obtain(); 4602 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4603 SomeArgs args = mPool.acquire(); 4604 args.argi1 = accessibilityId; 4605 args.argi2 = action; 4606 args.argi3 = interactionId; 4607 args.arg1 = callback; 4608 message.obj = args; 4609 sendMessage(message); 4610 } 4611 4612 public void perfromAccessibilityActionUiThread(Message message) { 4613 SomeArgs args = (SomeArgs) message.obj; 4614 final int accessibilityId = args.argi1; 4615 final int action = args.argi2; 4616 final int interactionId = args.argi3; 4617 final IAccessibilityInteractionConnectionCallback callback = 4618 (IAccessibilityInteractionConnectionCallback) args.arg1; 4619 mPool.release(args); 4620 4621 boolean succeeded = false; 4622 try { 4623 switch (action) { 4624 case AccessibilityNodeInfo.ACTION_FOCUS: { 4625 succeeded = performActionFocus(accessibilityId); 4626 } break; 4627 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4628 succeeded = performActionClearFocus(accessibilityId); 4629 } break; 4630 case AccessibilityNodeInfo.ACTION_SELECT: { 4631 succeeded = performActionSelect(accessibilityId); 4632 } break; 4633 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4634 succeeded = performActionClearSelection(accessibilityId); 4635 } break; 4636 } 4637 } finally { 4638 try { 4639 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4640 } catch (RemoteException re) { 4641 /* ignore - the other side will time out */ 4642 } 4643 } 4644 } 4645 4646 private boolean performActionFocus(int accessibilityId) { 4647 View target = findViewByAccessibilityId(accessibilityId); 4648 if (target == null) { 4649 return false; 4650 } 4651 // Get out of touch mode since accessibility wants to move focus around. 4652 ensureTouchMode(false); 4653 return target.requestFocus(); 4654 } 4655 4656 private boolean performActionClearFocus(int accessibilityId) { 4657 View target = findViewByAccessibilityId(accessibilityId); 4658 if (target == null) { 4659 return false; 4660 } 4661 if (!target.isFocused()) { 4662 return false; 4663 } 4664 target.clearFocus(); 4665 return !target.isFocused(); 4666 } 4667 4668 private boolean performActionSelect(int accessibilityId) { 4669 View target = findViewByAccessibilityId(accessibilityId); 4670 if (target == null) { 4671 return false; 4672 } 4673 if (target.isSelected()) { 4674 return false; 4675 } 4676 target.setSelected(true); 4677 return target.isSelected(); 4678 } 4679 4680 private boolean performActionClearSelection(int accessibilityId) { 4681 View target = findViewByAccessibilityId(accessibilityId); 4682 if (target == null) { 4683 return false; 4684 } 4685 if (!target.isSelected()) { 4686 return false; 4687 } 4688 target.setSelected(false); 4689 return !target.isSelected(); 4690 } 4691 4692 private View findViewByAccessibilityId(int accessibilityId) { 4693 View root = ViewRootImpl.this.mView; 4694 if (root == null) { 4695 return null; 4696 } 4697 mFindByAccessibilityIdPredicate.init(accessibilityId); 4698 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4699 return (foundView != null && foundView.isShown()) ? foundView : null; 4700 } 4701 4702 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4703 public int mSerchedId; 4704 4705 public void init(int searchedId) { 4706 mSerchedId = searchedId; 4707 } 4708 4709 public boolean apply(View view) { 4710 return (view.getAccessibilityViewId() == mSerchedId); 4711 } 4712 } 4713 } 4714 4715 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4716 public volatile boolean mIsPending; 4717 4718 public void run() { 4719 if (mView != null) { 4720 // Check again for accessibility state since this is executed delayed. 4721 AccessibilityManager accessibilityManager = 4722 AccessibilityManager.getInstance(mView.mContext); 4723 if (accessibilityManager.isEnabled()) { 4724 // Send the event directly since we do not want to append the 4725 // source text because this is the text for the entire window 4726 // and we just want to notify that the content has changed. 4727 AccessibilityEvent event = AccessibilityEvent.obtain( 4728 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4729 mView.onInitializeAccessibilityEvent(event); 4730 accessibilityManager.sendAccessibilityEvent(event); 4731 } 4732 mIsPending = false; 4733 } 4734 } 4735 } 4736} 4737