ViewRootImpl.java revision 6b0c11da5a7a7ea236fd9dc409d1ce7a33bff9c2
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.policy.PolicyManager; 77import com.android.internal.util.Predicate; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean WATCH_POINTER = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 long mLastTrackballTime = 0; 143 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 144 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 145 146 int mLastJoystickXDirection; 147 int mLastJoystickYDirection; 148 int mLastJoystickXKeyCode; 149 int mLastJoystickYKeyCode; 150 151 final int[] mTmpLocation = new int[2]; 152 153 final TypedValue mTmpValue = new TypedValue(); 154 155 final InputMethodCallback mInputMethodCallback; 156 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 157 int mPendingEventSeq = 0; 158 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 View mView; 168 View mFocusedView; 169 View mRealFocusedView; // this is not set to null in touch mode 170 int mViewVisibility; 171 boolean mAppVisible = true; 172 173 // Set to true if the owner of this window is in the stopped state, 174 // so the window should no longer be active. 175 boolean mStopped = false; 176 177 boolean mLastInCompatMode = false; 178 179 SurfaceHolder.Callback2 mSurfaceHolderCallback; 180 BaseSurfaceHolder mSurfaceHolder; 181 boolean mIsCreating; 182 boolean mDrawingAllowed; 183 184 final Region mTransparentRegion; 185 final Region mPreviousTransparentRegion; 186 187 int mWidth; 188 int mHeight; 189 Rect mDirty; 190 final Rect mCurrentDirty = new Rect(); 191 final Rect mPreviousDirty = new Rect(); 192 boolean mIsAnimating; 193 194 CompatibilityInfo.Translator mTranslator; 195 196 final View.AttachInfo mAttachInfo; 197 InputChannel mInputChannel; 198 InputQueue.Callback mInputQueueCallback; 199 InputQueue mInputQueue; 200 FallbackEventHandler mFallbackEventHandler; 201 202 final Rect mTempRect; // used in the transaction to not thrash the heap. 203 final Rect mVisRect; // used to retrieve visible rect of focused view. 204 205 boolean mTraversalScheduled; 206 long mLastTraversalFinishedTimeNanos; 207 long mLastDrawDurationNanos; 208 boolean mWillDrawSoon; 209 boolean mLayoutRequested; 210 boolean mFirst; 211 boolean mReportNextDraw; 212 boolean mFullRedrawNeeded; 213 boolean mNewSurfaceNeeded; 214 boolean mHasHadWindowFocus; 215 boolean mLastWasImTarget; 216 217 boolean mWindowAttributesChanged = false; 218 219 // These can be accessed by any thread, must be protected with a lock. 220 // Surface can never be reassigned or cleared (use Surface.clear()). 221 private final Surface mSurface = new Surface(); 222 223 boolean mAdded; 224 boolean mAddedTouchMode; 225 226 CompatibilityInfoHolder mCompatibilityInfo; 227 228 /*package*/ int mAddNesting; 229 230 // These are accessed by multiple threads. 231 final Rect mWinFrame; // frame given by window manager. 232 233 final Rect mPendingVisibleInsets = new Rect(); 234 final Rect mPendingContentInsets = new Rect(); 235 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 236 = new ViewTreeObserver.InternalInsetsInfo(); 237 238 final Configuration mLastConfiguration = new Configuration(); 239 final Configuration mPendingConfiguration = new Configuration(); 240 241 class ResizedInfo { 242 Rect coveredInsets; 243 Rect visibleInsets; 244 Configuration newConfig; 245 } 246 247 boolean mScrollMayChange; 248 int mSoftInputMode; 249 View mLastScrolledFocus; 250 int mScrollY; 251 int mCurScrollY; 252 Scroller mScroller; 253 HardwareLayer mResizeBuffer; 254 long mResizeBufferStartTime; 255 int mResizeBufferDuration; 256 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 257 private ArrayList<LayoutTransition> mPendingTransitions; 258 259 final ViewConfiguration mViewConfiguration; 260 261 /* Drag/drop */ 262 ClipDescription mDragDescription; 263 View mCurrentDragView; 264 volatile Object mLocalDragState; 265 final PointF mDragPoint = new PointF(); 266 final PointF mLastTouchPoint = new PointF(); 267 268 private boolean mProfileRendering; 269 private Thread mRenderProfiler; 270 private volatile boolean mRenderProfilingEnabled; 271 272 /** 273 * see {@link #playSoundEffect(int)} 274 */ 275 AudioManager mAudioManager; 276 277 final AccessibilityManager mAccessibilityManager; 278 279 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 280 281 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 282 283 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 284 285 private final int mDensity; 286 287 /** 288 * Consistency verifier for debugging purposes. 289 */ 290 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 291 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 292 new InputEventConsistencyVerifier(this, 0) : null; 293 294 public static IWindowSession getWindowSession(Looper mainLooper) { 295 synchronized (mStaticInit) { 296 if (!mInitialized) { 297 try { 298 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 299 sWindowSession = Display.getWindowManager().openSession( 300 imm.getClient(), imm.getInputContext()); 301 mInitialized = true; 302 } catch (RemoteException e) { 303 } 304 } 305 return sWindowSession; 306 } 307 } 308 309 public ViewRootImpl(Context context) { 310 super(); 311 312 if (MEASURE_LATENCY) { 313 if (lt == null) { 314 lt = new LatencyTimer(100, 1000); 315 } 316 } 317 318 // Initialize the statics when this class is first instantiated. This is 319 // done here instead of in the static block because Zygote does not 320 // allow the spawning of threads. 321 getWindowSession(context.getMainLooper()); 322 323 mThread = Thread.currentThread(); 324 mLocation = new WindowLeaked(null); 325 mLocation.fillInStackTrace(); 326 mWidth = -1; 327 mHeight = -1; 328 mDirty = new Rect(); 329 mTempRect = new Rect(); 330 mVisRect = new Rect(); 331 mWinFrame = new Rect(); 332 mWindow = new W(this); 333 mInputMethodCallback = new InputMethodCallback(this); 334 mViewVisibility = View.GONE; 335 mTransparentRegion = new Region(); 336 mPreviousTransparentRegion = new Region(); 337 mFirst = true; // true for the first time the view is added 338 mAdded = false; 339 mAccessibilityManager = AccessibilityManager.getInstance(context); 340 mAccessibilityInteractionConnectionManager = 341 new AccessibilityInteractionConnectionManager(); 342 mAccessibilityManager.addAccessibilityStateChangeListener( 343 mAccessibilityInteractionConnectionManager); 344 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 345 mViewConfiguration = ViewConfiguration.get(context); 346 mDensity = context.getResources().getDisplayMetrics().densityDpi; 347 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 348 mProfileRendering = Boolean.parseBoolean( 349 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 350 } 351 352 public static void addFirstDrawHandler(Runnable callback) { 353 synchronized (sFirstDrawHandlers) { 354 if (!sFirstDrawComplete) { 355 sFirstDrawHandlers.add(callback); 356 } 357 } 358 } 359 360 public static void addConfigCallback(ComponentCallbacks callback) { 361 synchronized (sConfigCallbacks) { 362 sConfigCallbacks.add(callback); 363 } 364 } 365 366 // FIXME for perf testing only 367 private boolean mProfile = false; 368 369 /** 370 * Call this to profile the next traversal call. 371 * FIXME for perf testing only. Remove eventually 372 */ 373 public void profile() { 374 mProfile = true; 375 } 376 377 /** 378 * Indicates whether we are in touch mode. Calling this method triggers an IPC 379 * call and should be avoided whenever possible. 380 * 381 * @return True, if the device is in touch mode, false otherwise. 382 * 383 * @hide 384 */ 385 static boolean isInTouchMode() { 386 if (mInitialized) { 387 try { 388 return sWindowSession.getInTouchMode(); 389 } catch (RemoteException e) { 390 } 391 } 392 return false; 393 } 394 395 /** 396 * We have one child 397 */ 398 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 399 synchronized (this) { 400 if (mView == null) { 401 mView = view; 402 mFallbackEventHandler.setView(view); 403 mWindowAttributes.copyFrom(attrs); 404 attrs = mWindowAttributes; 405 406 if (view instanceof RootViewSurfaceTaker) { 407 mSurfaceHolderCallback = 408 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 409 if (mSurfaceHolderCallback != null) { 410 mSurfaceHolder = new TakenSurfaceHolder(); 411 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 412 } 413 } 414 415 // If the application owns the surface, don't enable hardware acceleration 416 if (mSurfaceHolder == null) { 417 enableHardwareAcceleration(attrs); 418 } 419 420 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 421 mTranslator = compatibilityInfo.getTranslator(); 422 423 if (mTranslator != null) { 424 mSurface.setCompatibilityTranslator(mTranslator); 425 } 426 427 boolean restore = false; 428 if (mTranslator != null) { 429 restore = true; 430 attrs.backup(); 431 mTranslator.translateWindowLayout(attrs); 432 } 433 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 434 435 if (!compatibilityInfo.supportsScreen()) { 436 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 437 mLastInCompatMode = true; 438 } 439 440 mSoftInputMode = attrs.softInputMode; 441 mWindowAttributesChanged = true; 442 mAttachInfo.mRootView = view; 443 mAttachInfo.mScalingRequired = mTranslator != null; 444 mAttachInfo.mApplicationScale = 445 mTranslator == null ? 1.0f : mTranslator.applicationScale; 446 if (panelParentView != null) { 447 mAttachInfo.mPanelParentWindowToken 448 = panelParentView.getApplicationWindowToken(); 449 } 450 mAdded = true; 451 int res; /* = WindowManagerImpl.ADD_OKAY; */ 452 453 // Schedule the first layout -before- adding to the window 454 // manager, to make sure we do the relayout before receiving 455 // any other events from the system. 456 requestLayout(); 457 if ((mWindowAttributes.inputFeatures 458 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 459 mInputChannel = new InputChannel(); 460 } 461 try { 462 res = sWindowSession.add(mWindow, mWindowAttributes, 463 getHostVisibility(), mAttachInfo.mContentInsets, 464 mInputChannel); 465 } catch (RemoteException e) { 466 mAdded = false; 467 mView = null; 468 mAttachInfo.mRootView = null; 469 mInputChannel = null; 470 mFallbackEventHandler.setView(null); 471 unscheduleTraversals(); 472 throw new RuntimeException("Adding window failed", e); 473 } finally { 474 if (restore) { 475 attrs.restore(); 476 } 477 } 478 479 if (mTranslator != null) { 480 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 481 } 482 mPendingContentInsets.set(mAttachInfo.mContentInsets); 483 mPendingVisibleInsets.set(0, 0, 0, 0); 484 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 485 if (res < WindowManagerImpl.ADD_OKAY) { 486 mView = null; 487 mAttachInfo.mRootView = null; 488 mAdded = false; 489 mFallbackEventHandler.setView(null); 490 unscheduleTraversals(); 491 switch (res) { 492 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 493 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 494 throw new WindowManagerImpl.BadTokenException( 495 "Unable to add window -- token " + attrs.token 496 + " is not valid; is your activity running?"); 497 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 498 throw new WindowManagerImpl.BadTokenException( 499 "Unable to add window -- token " + attrs.token 500 + " is not for an application"); 501 case WindowManagerImpl.ADD_APP_EXITING: 502 throw new WindowManagerImpl.BadTokenException( 503 "Unable to add window -- app for token " + attrs.token 504 + " is exiting"); 505 case WindowManagerImpl.ADD_DUPLICATE_ADD: 506 throw new WindowManagerImpl.BadTokenException( 507 "Unable to add window -- window " + mWindow 508 + " has already been added"); 509 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 510 // Silently ignore -- we would have just removed it 511 // right away, anyway. 512 return; 513 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 514 throw new WindowManagerImpl.BadTokenException( 515 "Unable to add window " + mWindow + 516 " -- another window of this type already exists"); 517 case WindowManagerImpl.ADD_PERMISSION_DENIED: 518 throw new WindowManagerImpl.BadTokenException( 519 "Unable to add window " + mWindow + 520 " -- permission denied for this window type"); 521 } 522 throw new RuntimeException( 523 "Unable to add window -- unknown error code " + res); 524 } 525 526 if (view instanceof RootViewSurfaceTaker) { 527 mInputQueueCallback = 528 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 529 } 530 if (mInputChannel != null) { 531 if (mInputQueueCallback != null) { 532 mInputQueue = new InputQueue(mInputChannel); 533 mInputQueueCallback.onInputQueueCreated(mInputQueue); 534 } else { 535 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 536 Looper.myQueue()); 537 } 538 } 539 540 view.assignParent(this); 541 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 542 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 543 544 if (mAccessibilityManager.isEnabled()) { 545 mAccessibilityInteractionConnectionManager.ensureConnection(); 546 } 547 } 548 } 549 } 550 551 private void destroyHardwareResources() { 552 if (mAttachInfo.mHardwareRenderer != null) { 553 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 554 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 555 } 556 mAttachInfo.mHardwareRenderer.destroy(false); 557 } 558 } 559 560 void destroyHardwareLayers() { 561 if (mThread != Thread.currentThread()) { 562 if (mAttachInfo.mHardwareRenderer != null && 563 mAttachInfo.mHardwareRenderer.isEnabled()) { 564 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 565 } 566 } else { 567 if (mAttachInfo.mHardwareRenderer != null && 568 mAttachInfo.mHardwareRenderer.isEnabled()) { 569 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 570 } 571 } 572 } 573 574 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 575 mAttachInfo.mHardwareAccelerated = false; 576 mAttachInfo.mHardwareAccelerationRequested = false; 577 578 // Try to enable hardware acceleration if requested 579 final boolean hardwareAccelerated = 580 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 581 582 if (hardwareAccelerated) { 583 if (!HardwareRenderer.isAvailable()) { 584 return; 585 } 586 587 // Persistent processes (including the system) should not do 588 // accelerated rendering on low-end devices. In that case, 589 // sRendererDisabled will be set. In addition, the system process 590 // itself should never do accelerated rendering. In that case, both 591 // sRendererDisabled and sSystemRendererDisabled are set. When 592 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 593 // can be used by code on the system process to escape that and enable 594 // HW accelerated drawing. (This is basically for the lock screen.) 595 596 final boolean fakeHwAccelerated = (attrs.privateFlags & 597 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 598 final boolean forceHwAccelerated = (attrs.privateFlags & 599 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 600 601 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 602 && forceHwAccelerated)) { 603 // Don't enable hardware acceleration when we're not on the main thread 604 if (!HardwareRenderer.sSystemRendererDisabled 605 && Looper.getMainLooper() != Looper.myLooper()) { 606 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 607 + "acceleration outside of the main thread, aborting"); 608 return; 609 } 610 611 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 612 if (mAttachInfo.mHardwareRenderer != null) { 613 mAttachInfo.mHardwareRenderer.destroy(true); 614 } 615 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 616 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 617 = mAttachInfo.mHardwareRenderer != null; 618 } else if (fakeHwAccelerated) { 619 // The window had wanted to use hardware acceleration, but this 620 // is not allowed in its process. By setting this flag, it can 621 // still render as if it was accelerated. This is basically for 622 // the preview windows the window manager shows for launching 623 // applications, so they will look more like the app being launched. 624 mAttachInfo.mHardwareAccelerationRequested = true; 625 } 626 } 627 } 628 629 public View getView() { 630 return mView; 631 } 632 633 final WindowLeaked getLocation() { 634 return mLocation; 635 } 636 637 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 638 synchronized (this) { 639 int oldSoftInputMode = mWindowAttributes.softInputMode; 640 // preserve compatible window flag if exists. 641 int compatibleWindowFlag = 642 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 643 mWindowAttributes.copyFrom(attrs); 644 mWindowAttributes.flags |= compatibleWindowFlag; 645 646 if (newView) { 647 mSoftInputMode = attrs.softInputMode; 648 requestLayout(); 649 } 650 // Don't lose the mode we last auto-computed. 651 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 652 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 653 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 654 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 655 | (oldSoftInputMode 656 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 657 } 658 mWindowAttributesChanged = true; 659 scheduleTraversals(); 660 } 661 } 662 663 void handleAppVisibility(boolean visible) { 664 if (mAppVisible != visible) { 665 mAppVisible = visible; 666 scheduleTraversals(); 667 } 668 } 669 670 void handleGetNewSurface() { 671 mNewSurfaceNeeded = true; 672 mFullRedrawNeeded = true; 673 scheduleTraversals(); 674 } 675 676 /** 677 * {@inheritDoc} 678 */ 679 public void requestLayout() { 680 checkThread(); 681 mLayoutRequested = true; 682 scheduleTraversals(); 683 } 684 685 /** 686 * {@inheritDoc} 687 */ 688 public boolean isLayoutRequested() { 689 return mLayoutRequested; 690 } 691 692 public void invalidateChild(View child, Rect dirty) { 693 checkThread(); 694 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 695 if (dirty == null) { 696 // Fast invalidation for GL-enabled applications; GL must redraw everything 697 invalidate(); 698 return; 699 } 700 if (mCurScrollY != 0 || mTranslator != null) { 701 mTempRect.set(dirty); 702 dirty = mTempRect; 703 if (mCurScrollY != 0) { 704 dirty.offset(0, -mCurScrollY); 705 } 706 if (mTranslator != null) { 707 mTranslator.translateRectInAppWindowToScreen(dirty); 708 } 709 if (mAttachInfo.mScalingRequired) { 710 dirty.inset(-1, -1); 711 } 712 } 713 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 714 mAttachInfo.mSetIgnoreDirtyState = true; 715 mAttachInfo.mIgnoreDirtyState = true; 716 } 717 mDirty.union(dirty); 718 if (!mWillDrawSoon) { 719 scheduleTraversals(); 720 } 721 } 722 723 void invalidate() { 724 mDirty.set(0, 0, mWidth, mHeight); 725 scheduleTraversals(); 726 } 727 728 void setStopped(boolean stopped) { 729 if (mStopped != stopped) { 730 mStopped = stopped; 731 if (!stopped) { 732 scheduleTraversals(); 733 } 734 } 735 } 736 737 public ViewParent getParent() { 738 return null; 739 } 740 741 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 742 invalidateChild(null, dirty); 743 return null; 744 } 745 746 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 747 if (child != mView) { 748 throw new RuntimeException("child is not mine, honest!"); 749 } 750 // Note: don't apply scroll offset, because we want to know its 751 // visibility in the virtual canvas being given to the view hierarchy. 752 return r.intersect(0, 0, mWidth, mHeight); 753 } 754 755 public void bringChildToFront(View child) { 756 } 757 758 public void scheduleTraversals() { 759 if (!mTraversalScheduled) { 760 mTraversalScheduled = true; 761 762 //noinspection ConstantConditions 763 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 764 final long now = System.nanoTime(); 765 Log.d(TAG, "Latency: Scheduled traversal, it has been " 766 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 767 + "ms since the last traversal finished."); 768 } 769 770 sendEmptyMessage(DO_TRAVERSAL); 771 } 772 } 773 774 public void unscheduleTraversals() { 775 if (mTraversalScheduled) { 776 mTraversalScheduled = false; 777 removeMessages(DO_TRAVERSAL); 778 } 779 } 780 781 int getHostVisibility() { 782 return mAppVisible ? mView.getVisibility() : View.GONE; 783 } 784 785 void disposeResizeBuffer() { 786 if (mResizeBuffer != null) { 787 mResizeBuffer.destroy(); 788 mResizeBuffer = null; 789 } 790 } 791 792 /** 793 * Add LayoutTransition to the list of transitions to be started in the next traversal. 794 * This list will be cleared after the transitions on the list are start()'ed. These 795 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 796 * happens during the layout phase of traversal, which we want to complete before any of the 797 * animations are started (because those animations may side-effect properties that layout 798 * depends upon, like the bounding rectangles of the affected views). So we add the transition 799 * to the list and it is started just prior to starting the drawing phase of traversal. 800 * 801 * @param transition The LayoutTransition to be started on the next traversal. 802 * 803 * @hide 804 */ 805 public void requestTransitionStart(LayoutTransition transition) { 806 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 807 if (mPendingTransitions == null) { 808 mPendingTransitions = new ArrayList<LayoutTransition>(); 809 } 810 mPendingTransitions.add(transition); 811 } 812 } 813 814 private void performTraversals() { 815 // cache mView since it is used so much below... 816 final View host = mView; 817 818 if (DBG) { 819 System.out.println("======================================"); 820 System.out.println("performTraversals"); 821 host.debug(); 822 } 823 824 if (host == null || !mAdded) 825 return; 826 827 mTraversalScheduled = false; 828 mWillDrawSoon = true; 829 boolean windowSizeMayChange = false; 830 boolean fullRedrawNeeded = mFullRedrawNeeded; 831 boolean newSurface = false; 832 boolean surfaceChanged = false; 833 WindowManager.LayoutParams lp = mWindowAttributes; 834 835 int desiredWindowWidth; 836 int desiredWindowHeight; 837 int childWidthMeasureSpec; 838 int childHeightMeasureSpec; 839 840 final View.AttachInfo attachInfo = mAttachInfo; 841 842 final int viewVisibility = getHostVisibility(); 843 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 844 || mNewSurfaceNeeded; 845 846 WindowManager.LayoutParams params = null; 847 if (mWindowAttributesChanged) { 848 mWindowAttributesChanged = false; 849 surfaceChanged = true; 850 params = lp; 851 } 852 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 853 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 854 params = lp; 855 fullRedrawNeeded = true; 856 mLayoutRequested = true; 857 if (mLastInCompatMode) { 858 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 859 mLastInCompatMode = false; 860 } else { 861 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 862 mLastInCompatMode = true; 863 } 864 } 865 Rect frame = mWinFrame; 866 if (mFirst) { 867 fullRedrawNeeded = true; 868 mLayoutRequested = true; 869 870 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 871 // NOTE -- system code, won't try to do compat mode. 872 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 873 Point size = new Point(); 874 disp.getRealSize(size); 875 desiredWindowWidth = size.x; 876 desiredWindowHeight = size.y; 877 } else { 878 DisplayMetrics packageMetrics = 879 mView.getContext().getResources().getDisplayMetrics(); 880 desiredWindowWidth = packageMetrics.widthPixels; 881 desiredWindowHeight = packageMetrics.heightPixels; 882 } 883 884 // For the very first time, tell the view hierarchy that it 885 // is attached to the window. Note that at this point the surface 886 // object is not initialized to its backing store, but soon it 887 // will be (assuming the window is visible). 888 attachInfo.mSurface = mSurface; 889 // We used to use the following condition to choose 32 bits drawing caches: 890 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 891 // However, windows are now always 32 bits by default, so choose 32 bits 892 attachInfo.mUse32BitDrawingCache = true; 893 attachInfo.mHasWindowFocus = false; 894 attachInfo.mWindowVisibility = viewVisibility; 895 attachInfo.mRecomputeGlobalAttributes = false; 896 attachInfo.mKeepScreenOn = false; 897 attachInfo.mSystemUiVisibility = 0; 898 viewVisibilityChanged = false; 899 mLastConfiguration.setTo(host.getResources().getConfiguration()); 900 host.dispatchAttachedToWindow(attachInfo, 0); 901 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 902 903 host.fitSystemWindows(mAttachInfo.mContentInsets); 904 905 } else { 906 desiredWindowWidth = frame.width(); 907 desiredWindowHeight = frame.height(); 908 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 909 if (DEBUG_ORIENTATION) Log.v(TAG, 910 "View " + host + " resized to: " + frame); 911 fullRedrawNeeded = true; 912 mLayoutRequested = true; 913 windowSizeMayChange = true; 914 } 915 } 916 917 if (viewVisibilityChanged) { 918 attachInfo.mWindowVisibility = viewVisibility; 919 host.dispatchWindowVisibilityChanged(viewVisibility); 920 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 921 destroyHardwareResources(); 922 } 923 if (viewVisibility == View.GONE) { 924 // After making a window gone, we will count it as being 925 // shown for the first time the next time it gets focus. 926 mHasHadWindowFocus = false; 927 } 928 } 929 930 boolean insetsChanged = false; 931 932 if (mLayoutRequested && !mStopped) { 933 // Execute enqueued actions on every layout in case a view that was detached 934 // enqueued an action after being detached 935 getRunQueue().executeActions(attachInfo.mHandler); 936 937 final Resources res = mView.getContext().getResources(); 938 939 if (mFirst) { 940 // make sure touch mode code executes by setting cached value 941 // to opposite of the added touch mode. 942 mAttachInfo.mInTouchMode = !mAddedTouchMode; 943 ensureTouchModeLocally(mAddedTouchMode); 944 } else { 945 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 946 insetsChanged = true; 947 } 948 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 949 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 950 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 951 + mAttachInfo.mVisibleInsets); 952 } 953 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 954 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 955 windowSizeMayChange = true; 956 957 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 958 // NOTE -- system code, won't try to do compat mode. 959 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 960 Point size = new Point(); 961 disp.getRealSize(size); 962 desiredWindowWidth = size.x; 963 desiredWindowHeight = size.y; 964 } else { 965 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 966 desiredWindowWidth = packageMetrics.widthPixels; 967 desiredWindowHeight = packageMetrics.heightPixels; 968 } 969 } 970 } 971 972 // Ask host how big it wants to be 973 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 974 "Measuring " + host + " in display " + desiredWindowWidth 975 + "x" + desiredWindowHeight + "..."); 976 977 boolean goodMeasure = false; 978 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 979 // On large screens, we don't want to allow dialogs to just 980 // stretch to fill the entire width of the screen to display 981 // one line of text. First try doing the layout at a smaller 982 // size to see if it will fit. 983 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 984 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 985 int baseSize = 0; 986 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 987 baseSize = (int)mTmpValue.getDimension(packageMetrics); 988 } 989 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 990 if (baseSize != 0 && desiredWindowWidth > baseSize) { 991 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 992 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 993 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 994 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 995 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 996 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 997 goodMeasure = true; 998 } else { 999 // Didn't fit in that size... try expanding a bit. 1000 baseSize = (baseSize+desiredWindowWidth)/2; 1001 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1002 + baseSize); 1003 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1004 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1005 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1006 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1007 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1008 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1009 goodMeasure = true; 1010 } 1011 } 1012 } 1013 } 1014 1015 if (!goodMeasure) { 1016 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1017 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1018 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1019 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1020 windowSizeMayChange = true; 1021 } 1022 } 1023 1024 if (DBG) { 1025 System.out.println("======================================"); 1026 System.out.println("performTraversals -- after measure"); 1027 host.debug(); 1028 } 1029 } 1030 1031 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1032 //Log.i(TAG, "Computing view hierarchy attributes!"); 1033 attachInfo.mRecomputeGlobalAttributes = false; 1034 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1035 int oldVis = attachInfo.mSystemUiVisibility; 1036 attachInfo.mKeepScreenOn = false; 1037 attachInfo.mSystemUiVisibility = 0; 1038 attachInfo.mHasSystemUiListeners = false; 1039 host.dispatchCollectViewAttributes(0); 1040 if (attachInfo.mKeepScreenOn != oldScreenOn 1041 || attachInfo.mSystemUiVisibility != oldVis 1042 || attachInfo.mHasSystemUiListeners) { 1043 params = lp; 1044 } 1045 } 1046 1047 if (mFirst || attachInfo.mViewVisibilityChanged) { 1048 attachInfo.mViewVisibilityChanged = false; 1049 int resizeMode = mSoftInputMode & 1050 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1051 // If we are in auto resize mode, then we need to determine 1052 // what mode to use now. 1053 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1054 final int N = attachInfo.mScrollContainers.size(); 1055 for (int i=0; i<N; i++) { 1056 if (attachInfo.mScrollContainers.get(i).isShown()) { 1057 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1058 } 1059 } 1060 if (resizeMode == 0) { 1061 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1062 } 1063 if ((lp.softInputMode & 1064 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1065 lp.softInputMode = (lp.softInputMode & 1066 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1067 resizeMode; 1068 params = lp; 1069 } 1070 } 1071 } 1072 1073 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1074 if (!PixelFormat.formatHasAlpha(params.format)) { 1075 params.format = PixelFormat.TRANSLUCENT; 1076 } 1077 } 1078 1079 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1080 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1081 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1082 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1083 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1084 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1085 1086 final boolean computesInternalInsets = 1087 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1088 1089 boolean insetsPending = false; 1090 int relayoutResult = 0; 1091 1092 if (mFirst || windowShouldResize || insetsChanged || 1093 viewVisibilityChanged || params != null) { 1094 1095 if (viewVisibility == View.VISIBLE) { 1096 // If this window is giving internal insets to the window 1097 // manager, and it is being added or changing its visibility, 1098 // then we want to first give the window manager "fake" 1099 // insets to cause it to effectively ignore the content of 1100 // the window during layout. This avoids it briefly causing 1101 // other windows to resize/move based on the raw frame of the 1102 // window, waiting until we can finish laying out this window 1103 // and get back to the window manager with the ultimately 1104 // computed insets. 1105 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1106 } 1107 1108 if (mSurfaceHolder != null) { 1109 mSurfaceHolder.mSurfaceLock.lock(); 1110 mDrawingAllowed = true; 1111 } 1112 1113 boolean hwInitialized = false; 1114 boolean contentInsetsChanged = false; 1115 boolean visibleInsetsChanged; 1116 boolean hadSurface = mSurface.isValid(); 1117 1118 try { 1119 int fl = 0; 1120 if (params != null) { 1121 fl = params.flags; 1122 if (attachInfo.mKeepScreenOn) { 1123 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1124 } 1125 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1126 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1127 || params.subtreeSystemUiVisibility != 0 1128 || params.systemUiVisibility != 0; 1129 } 1130 if (DEBUG_LAYOUT) { 1131 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1132 host.getMeasuredHeight() + ", params=" + params); 1133 } 1134 1135 final int surfaceGenerationId = mSurface.getGenerationId(); 1136 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1137 1138 if (params != null) { 1139 params.flags = fl; 1140 } 1141 1142 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1143 + " content=" + mPendingContentInsets.toShortString() 1144 + " visible=" + mPendingVisibleInsets.toShortString() 1145 + " surface=" + mSurface); 1146 1147 if (mPendingConfiguration.seq != 0) { 1148 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1149 + mPendingConfiguration); 1150 updateConfiguration(mPendingConfiguration, !mFirst); 1151 mPendingConfiguration.seq = 0; 1152 } 1153 1154 contentInsetsChanged = !mPendingContentInsets.equals( 1155 mAttachInfo.mContentInsets); 1156 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1157 mAttachInfo.mVisibleInsets); 1158 if (contentInsetsChanged) { 1159 if (mWidth > 0 && mHeight > 0 && 1160 mSurface != null && mSurface.isValid() && 1161 !mAttachInfo.mTurnOffWindowResizeAnim && 1162 mAttachInfo.mHardwareRenderer != null && 1163 mAttachInfo.mHardwareRenderer.isEnabled() && 1164 mAttachInfo.mHardwareRenderer.validate() && 1165 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1166 1167 disposeResizeBuffer(); 1168 1169 boolean completed = false; 1170 HardwareCanvas canvas = null; 1171 try { 1172 if (mResizeBuffer == null) { 1173 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1174 mWidth, mHeight, false); 1175 } else if (mResizeBuffer.getWidth() != mWidth || 1176 mResizeBuffer.getHeight() != mHeight) { 1177 mResizeBuffer.resize(mWidth, mHeight); 1178 } 1179 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1180 canvas.setViewport(mWidth, mHeight); 1181 canvas.onPreDraw(null); 1182 final int restoreCount = canvas.save(); 1183 1184 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1185 1186 int yoff; 1187 final boolean scrolling = mScroller != null 1188 && mScroller.computeScrollOffset(); 1189 if (scrolling) { 1190 yoff = mScroller.getCurrY(); 1191 mScroller.abortAnimation(); 1192 } else { 1193 yoff = mScrollY; 1194 } 1195 1196 canvas.translate(0, -yoff); 1197 if (mTranslator != null) { 1198 mTranslator.translateCanvas(canvas); 1199 } 1200 1201 mView.draw(canvas); 1202 1203 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1204 mResizeBufferDuration = mView.getResources().getInteger( 1205 com.android.internal.R.integer.config_mediumAnimTime); 1206 completed = true; 1207 1208 canvas.restoreToCount(restoreCount); 1209 } catch (OutOfMemoryError e) { 1210 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1211 } finally { 1212 if (canvas != null) { 1213 canvas.onPostDraw(); 1214 } 1215 if (mResizeBuffer != null) { 1216 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1217 if (!completed) { 1218 mResizeBuffer.destroy(); 1219 mResizeBuffer = null; 1220 } 1221 } 1222 } 1223 } 1224 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1225 host.fitSystemWindows(mAttachInfo.mContentInsets); 1226 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1227 + mAttachInfo.mContentInsets); 1228 } 1229 if (visibleInsetsChanged) { 1230 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1231 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1232 + mAttachInfo.mVisibleInsets); 1233 } 1234 1235 if (!hadSurface) { 1236 if (mSurface.isValid()) { 1237 // If we are creating a new surface, then we need to 1238 // completely redraw it. Also, when we get to the 1239 // point of drawing it we will hold off and schedule 1240 // a new traversal instead. This is so we can tell the 1241 // window manager about all of the windows being displayed 1242 // before actually drawing them, so it can display then 1243 // all at once. 1244 newSurface = true; 1245 fullRedrawNeeded = true; 1246 mPreviousTransparentRegion.setEmpty(); 1247 1248 if (mAttachInfo.mHardwareRenderer != null) { 1249 try { 1250 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1251 } catch (Surface.OutOfResourcesException e) { 1252 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1253 try { 1254 if (!sWindowSession.outOfMemory(mWindow)) { 1255 Slog.w(TAG, "No processes killed for memory; killing self"); 1256 Process.killProcess(Process.myPid()); 1257 } 1258 } catch (RemoteException ex) { 1259 } 1260 mLayoutRequested = true; // ask wm for a new surface next time. 1261 return; 1262 } 1263 } 1264 } 1265 } else if (!mSurface.isValid()) { 1266 // If the surface has been removed, then reset the scroll 1267 // positions. 1268 mLastScrolledFocus = null; 1269 mScrollY = mCurScrollY = 0; 1270 if (mScroller != null) { 1271 mScroller.abortAnimation(); 1272 } 1273 disposeResizeBuffer(); 1274 // Our surface is gone 1275 if (mAttachInfo.mHardwareRenderer != null && 1276 mAttachInfo.mHardwareRenderer.isEnabled()) { 1277 mAttachInfo.mHardwareRenderer.destroy(true); 1278 } 1279 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1280 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1281 fullRedrawNeeded = true; 1282 try { 1283 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1284 } catch (Surface.OutOfResourcesException e) { 1285 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1286 try { 1287 if (!sWindowSession.outOfMemory(mWindow)) { 1288 Slog.w(TAG, "No processes killed for memory; killing self"); 1289 Process.killProcess(Process.myPid()); 1290 } 1291 } catch (RemoteException ex) { 1292 } 1293 mLayoutRequested = true; // ask wm for a new surface next time. 1294 return; 1295 } 1296 } 1297 } catch (RemoteException e) { 1298 } 1299 1300 if (DEBUG_ORIENTATION) Log.v( 1301 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1302 1303 attachInfo.mWindowLeft = frame.left; 1304 attachInfo.mWindowTop = frame.top; 1305 1306 // !!FIXME!! This next section handles the case where we did not get the 1307 // window size we asked for. We should avoid this by getting a maximum size from 1308 // the window session beforehand. 1309 mWidth = frame.width(); 1310 mHeight = frame.height(); 1311 1312 if (mSurfaceHolder != null) { 1313 // The app owns the surface; tell it about what is going on. 1314 if (mSurface.isValid()) { 1315 // XXX .copyFrom() doesn't work! 1316 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1317 mSurfaceHolder.mSurface = mSurface; 1318 } 1319 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1320 mSurfaceHolder.mSurfaceLock.unlock(); 1321 if (mSurface.isValid()) { 1322 if (!hadSurface) { 1323 mSurfaceHolder.ungetCallbacks(); 1324 1325 mIsCreating = true; 1326 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1327 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1328 if (callbacks != null) { 1329 for (SurfaceHolder.Callback c : callbacks) { 1330 c.surfaceCreated(mSurfaceHolder); 1331 } 1332 } 1333 surfaceChanged = true; 1334 } 1335 if (surfaceChanged) { 1336 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1337 lp.format, mWidth, mHeight); 1338 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1339 if (callbacks != null) { 1340 for (SurfaceHolder.Callback c : callbacks) { 1341 c.surfaceChanged(mSurfaceHolder, lp.format, 1342 mWidth, mHeight); 1343 } 1344 } 1345 } 1346 mIsCreating = false; 1347 } else if (hadSurface) { 1348 mSurfaceHolder.ungetCallbacks(); 1349 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1350 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1351 if (callbacks != null) { 1352 for (SurfaceHolder.Callback c : callbacks) { 1353 c.surfaceDestroyed(mSurfaceHolder); 1354 } 1355 } 1356 mSurfaceHolder.mSurfaceLock.lock(); 1357 try { 1358 mSurfaceHolder.mSurface = new Surface(); 1359 } finally { 1360 mSurfaceHolder.mSurfaceLock.unlock(); 1361 } 1362 } 1363 } 1364 1365 if (hwInitialized || ((windowShouldResize || params != null) && 1366 mAttachInfo.mHardwareRenderer != null && 1367 mAttachInfo.mHardwareRenderer.isEnabled())) { 1368 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1369 if (!hwInitialized && mAttachInfo.mHardwareRenderer.isEnabled()) { 1370 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1371 } 1372 } 1373 1374 if (!mStopped) { 1375 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1376 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1377 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1378 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1379 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1380 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1381 1382 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1383 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1384 + " mHeight=" + mHeight 1385 + " measuredHeight=" + host.getMeasuredHeight() 1386 + " coveredInsetsChanged=" + contentInsetsChanged); 1387 1388 // Ask host how big it wants to be 1389 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1390 1391 // Implementation of weights from WindowManager.LayoutParams 1392 // We just grow the dimensions as needed and re-measure if 1393 // needs be 1394 int width = host.getMeasuredWidth(); 1395 int height = host.getMeasuredHeight(); 1396 boolean measureAgain = false; 1397 1398 if (lp.horizontalWeight > 0.0f) { 1399 width += (int) ((mWidth - width) * lp.horizontalWeight); 1400 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1401 MeasureSpec.EXACTLY); 1402 measureAgain = true; 1403 } 1404 if (lp.verticalWeight > 0.0f) { 1405 height += (int) ((mHeight - height) * lp.verticalWeight); 1406 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1407 MeasureSpec.EXACTLY); 1408 measureAgain = true; 1409 } 1410 1411 if (measureAgain) { 1412 if (DEBUG_LAYOUT) Log.v(TAG, 1413 "And hey let's measure once more: width=" + width 1414 + " height=" + height); 1415 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1416 } 1417 1418 mLayoutRequested = true; 1419 } 1420 } 1421 } 1422 1423 final boolean didLayout = mLayoutRequested && !mStopped; 1424 boolean triggerGlobalLayoutListener = didLayout 1425 || attachInfo.mRecomputeGlobalAttributes; 1426 if (didLayout) { 1427 mLayoutRequested = false; 1428 mScrollMayChange = true; 1429 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1430 TAG, "Laying out " + host + " to (" + 1431 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1432 long startTime = 0L; 1433 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1434 startTime = SystemClock.elapsedRealtime(); 1435 } 1436 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1437 1438 if (false && ViewDebug.consistencyCheckEnabled) { 1439 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1440 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1441 + "please refer to the logs with the tag " 1442 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1443 } 1444 } 1445 1446 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1447 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1448 } 1449 1450 // By this point all views have been sized and positionned 1451 // We can compute the transparent area 1452 1453 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1454 // start out transparent 1455 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1456 host.getLocationInWindow(mTmpLocation); 1457 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1458 mTmpLocation[0] + host.mRight - host.mLeft, 1459 mTmpLocation[1] + host.mBottom - host.mTop); 1460 1461 host.gatherTransparentRegion(mTransparentRegion); 1462 if (mTranslator != null) { 1463 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1464 } 1465 1466 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1467 mPreviousTransparentRegion.set(mTransparentRegion); 1468 // reconfigure window manager 1469 try { 1470 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1471 } catch (RemoteException e) { 1472 } 1473 } 1474 } 1475 1476 if (DBG) { 1477 System.out.println("======================================"); 1478 System.out.println("performTraversals -- after setFrame"); 1479 host.debug(); 1480 } 1481 } 1482 1483 if (triggerGlobalLayoutListener) { 1484 attachInfo.mRecomputeGlobalAttributes = false; 1485 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1486 1487 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1488 postSendWindowContentChangedCallback(); 1489 } 1490 } 1491 1492 if (computesInternalInsets) { 1493 // Clear the original insets. 1494 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1495 insets.reset(); 1496 1497 // Compute new insets in place. 1498 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1499 1500 // Tell the window manager. 1501 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1502 mLastGivenInsets.set(insets); 1503 1504 // Translate insets to screen coordinates if needed. 1505 final Rect contentInsets; 1506 final Rect visibleInsets; 1507 final Region touchableRegion; 1508 if (mTranslator != null) { 1509 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1510 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1511 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1512 } else { 1513 contentInsets = insets.contentInsets; 1514 visibleInsets = insets.visibleInsets; 1515 touchableRegion = insets.touchableRegion; 1516 } 1517 1518 try { 1519 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1520 contentInsets, visibleInsets, touchableRegion); 1521 } catch (RemoteException e) { 1522 } 1523 } 1524 } 1525 1526 if (mFirst) { 1527 // handle first focus request 1528 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1529 + mView.hasFocus()); 1530 if (mView != null) { 1531 if (!mView.hasFocus()) { 1532 mView.requestFocus(View.FOCUS_FORWARD); 1533 mFocusedView = mRealFocusedView = mView.findFocus(); 1534 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1535 + mFocusedView); 1536 } else { 1537 mRealFocusedView = mView.findFocus(); 1538 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1539 + mRealFocusedView); 1540 } 1541 } 1542 } 1543 1544 mFirst = false; 1545 mWillDrawSoon = false; 1546 mNewSurfaceNeeded = false; 1547 mViewVisibility = viewVisibility; 1548 1549 if (mAttachInfo.mHasWindowFocus) { 1550 final boolean imTarget = WindowManager.LayoutParams 1551 .mayUseInputMethod(mWindowAttributes.flags); 1552 if (imTarget != mLastWasImTarget) { 1553 mLastWasImTarget = imTarget; 1554 InputMethodManager imm = InputMethodManager.peekInstance(); 1555 if (imm != null && imTarget) { 1556 imm.startGettingWindowFocus(mView); 1557 imm.onWindowFocus(mView, mView.findFocus(), 1558 mWindowAttributes.softInputMode, 1559 !mHasHadWindowFocus, mWindowAttributes.flags); 1560 } 1561 } 1562 } 1563 1564 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1565 viewVisibility != View.VISIBLE; 1566 1567 if (!cancelDraw && !newSurface) { 1568 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1569 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1570 mPendingTransitions.get(i).startChangingAnimations(); 1571 } 1572 mPendingTransitions.clear(); 1573 } 1574 mFullRedrawNeeded = false; 1575 1576 final long drawStartTime; 1577 if (ViewDebug.DEBUG_LATENCY) { 1578 drawStartTime = System.nanoTime(); 1579 } 1580 1581 draw(fullRedrawNeeded); 1582 1583 if (ViewDebug.DEBUG_LATENCY) { 1584 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1585 } 1586 1587 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1588 || mReportNextDraw) { 1589 if (LOCAL_LOGV) { 1590 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1591 } 1592 mReportNextDraw = false; 1593 if (mSurfaceHolder != null && mSurface.isValid()) { 1594 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1595 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1596 if (callbacks != null) { 1597 for (SurfaceHolder.Callback c : callbacks) { 1598 if (c instanceof SurfaceHolder.Callback2) { 1599 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1600 mSurfaceHolder); 1601 } 1602 } 1603 } 1604 } 1605 try { 1606 sWindowSession.finishDrawing(mWindow); 1607 } catch (RemoteException e) { 1608 } 1609 } 1610 } else { 1611 // If we're not drawing, then we don't need to draw the transitions, either 1612 if (mPendingTransitions != null) { 1613 mPendingTransitions.clear(); 1614 } 1615 1616 // We were supposed to report when we are done drawing. Since we canceled the 1617 // draw, remember it here. 1618 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1619 mReportNextDraw = true; 1620 } 1621 if (fullRedrawNeeded) { 1622 mFullRedrawNeeded = true; 1623 } 1624 1625 if (viewVisibility == View.VISIBLE) { 1626 // Try again 1627 scheduleTraversals(); 1628 } 1629 } 1630 } 1631 1632 public void requestTransparentRegion(View child) { 1633 // the test below should not fail unless someone is messing with us 1634 checkThread(); 1635 if (mView == child) { 1636 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1637 // Need to make sure we re-evaluate the window attributes next 1638 // time around, to ensure the window has the correct format. 1639 mWindowAttributesChanged = true; 1640 requestLayout(); 1641 } 1642 } 1643 1644 /** 1645 * Figures out the measure spec for the root view in a window based on it's 1646 * layout params. 1647 * 1648 * @param windowSize 1649 * The available width or height of the window 1650 * 1651 * @param rootDimension 1652 * The layout params for one dimension (width or height) of the 1653 * window. 1654 * 1655 * @return The measure spec to use to measure the root view. 1656 */ 1657 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1658 int measureSpec; 1659 switch (rootDimension) { 1660 1661 case ViewGroup.LayoutParams.MATCH_PARENT: 1662 // Window can't resize. Force root view to be windowSize. 1663 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1664 break; 1665 case ViewGroup.LayoutParams.WRAP_CONTENT: 1666 // Window can resize. Set max size for root view. 1667 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1668 break; 1669 default: 1670 // Window wants to be an exact size. Force root view to be that size. 1671 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1672 break; 1673 } 1674 return measureSpec; 1675 } 1676 1677 int mHardwareYOffset; 1678 int mResizeAlpha; 1679 final Paint mResizePaint = new Paint(); 1680 1681 public void onHardwarePreDraw(HardwareCanvas canvas) { 1682 canvas.translate(0, -mHardwareYOffset); 1683 } 1684 1685 public void onHardwarePostDraw(HardwareCanvas canvas) { 1686 if (mResizeBuffer != null) { 1687 mResizePaint.setAlpha(mResizeAlpha); 1688 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1689 } 1690 } 1691 1692 /** 1693 * @hide 1694 */ 1695 void outputDisplayList(View view) { 1696 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1697 DisplayList displayList = view.getDisplayList(); 1698 if (displayList != null) { 1699 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1700 } 1701 } 1702 } 1703 1704 /** 1705 * @see #PROPERTY_PROFILE_RENDERING 1706 */ 1707 private void profileRendering(boolean enabled) { 1708 if (mProfileRendering) { 1709 mRenderProfilingEnabled = enabled; 1710 if (mRenderProfiler == null) { 1711 mRenderProfiler = new Thread(new Runnable() { 1712 @Override 1713 public void run() { 1714 Log.d(TAG, "Starting profiling thread"); 1715 while (mRenderProfilingEnabled) { 1716 mAttachInfo.mHandler.post(new Runnable() { 1717 @Override 1718 public void run() { 1719 mDirty.set(0, 0, mWidth, mHeight); 1720 scheduleTraversals(); 1721 } 1722 }); 1723 try { 1724 // TODO: This should use vsync when we get an API 1725 Thread.sleep(15); 1726 } catch (InterruptedException e) { 1727 Log.d(TAG, "Exiting profiling thread"); 1728 } 1729 } 1730 } 1731 }, "Rendering Profiler"); 1732 mRenderProfiler.start(); 1733 } else { 1734 mRenderProfiler.interrupt(); 1735 mRenderProfiler = null; 1736 } 1737 } 1738 } 1739 1740 private void draw(boolean fullRedrawNeeded) { 1741 Surface surface = mSurface; 1742 if (surface == null || !surface.isValid()) { 1743 return; 1744 } 1745 1746 if (!sFirstDrawComplete) { 1747 synchronized (sFirstDrawHandlers) { 1748 sFirstDrawComplete = true; 1749 final int count = sFirstDrawHandlers.size(); 1750 for (int i = 0; i< count; i++) { 1751 post(sFirstDrawHandlers.get(i)); 1752 } 1753 } 1754 } 1755 1756 scrollToRectOrFocus(null, false); 1757 1758 if (mAttachInfo.mViewScrollChanged) { 1759 mAttachInfo.mViewScrollChanged = false; 1760 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1761 } 1762 1763 int yoff; 1764 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1765 if (animating) { 1766 yoff = mScroller.getCurrY(); 1767 } else { 1768 yoff = mScrollY; 1769 } 1770 if (mCurScrollY != yoff) { 1771 mCurScrollY = yoff; 1772 fullRedrawNeeded = true; 1773 } 1774 float appScale = mAttachInfo.mApplicationScale; 1775 boolean scalingRequired = mAttachInfo.mScalingRequired; 1776 1777 int resizeAlpha = 0; 1778 if (mResizeBuffer != null) { 1779 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1780 if (deltaTime < mResizeBufferDuration) { 1781 float amt = deltaTime/(float) mResizeBufferDuration; 1782 amt = mResizeInterpolator.getInterpolation(amt); 1783 animating = true; 1784 resizeAlpha = 255 - (int)(amt*255); 1785 } else { 1786 disposeResizeBuffer(); 1787 } 1788 } 1789 1790 Rect dirty = mDirty; 1791 if (mSurfaceHolder != null) { 1792 // The app owns the surface, we won't draw. 1793 dirty.setEmpty(); 1794 if (animating) { 1795 if (mScroller != null) { 1796 mScroller.abortAnimation(); 1797 } 1798 disposeResizeBuffer(); 1799 } 1800 return; 1801 } 1802 1803 if (fullRedrawNeeded) { 1804 mAttachInfo.mIgnoreDirtyState = true; 1805 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1806 } 1807 1808 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1809 if (!dirty.isEmpty() || mIsAnimating) { 1810 mIsAnimating = false; 1811 mHardwareYOffset = yoff; 1812 mResizeAlpha = resizeAlpha; 1813 1814 mCurrentDirty.set(dirty); 1815 mCurrentDirty.union(mPreviousDirty); 1816 mPreviousDirty.set(dirty); 1817 dirty.setEmpty(); 1818 1819 Rect currentDirty = mCurrentDirty; 1820 if (animating) { 1821 currentDirty = null; 1822 } 1823 1824 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1825 mPreviousDirty.set(0, 0, mWidth, mHeight); 1826 } 1827 } 1828 1829 if (animating) { 1830 mFullRedrawNeeded = true; 1831 scheduleTraversals(); 1832 } 1833 1834 return; 1835 } 1836 1837 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1838 Log.v(TAG, "Draw " + mView + "/" 1839 + mWindowAttributes.getTitle() 1840 + ": dirty={" + dirty.left + "," + dirty.top 1841 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1842 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1843 appScale + ", width=" + mWidth + ", height=" + mHeight); 1844 } 1845 1846 if (!dirty.isEmpty() || mIsAnimating) { 1847 Canvas canvas; 1848 try { 1849 int left = dirty.left; 1850 int top = dirty.top; 1851 int right = dirty.right; 1852 int bottom = dirty.bottom; 1853 1854 final long lockCanvasStartTime; 1855 if (ViewDebug.DEBUG_LATENCY) { 1856 lockCanvasStartTime = System.nanoTime(); 1857 } 1858 1859 canvas = surface.lockCanvas(dirty); 1860 1861 if (ViewDebug.DEBUG_LATENCY) { 1862 long now = System.nanoTime(); 1863 Log.d(TAG, "Latency: Spent " 1864 + ((now - lockCanvasStartTime) * 0.000001f) 1865 + "ms waiting for surface.lockCanvas()"); 1866 } 1867 1868 if (left != dirty.left || top != dirty.top || right != dirty.right || 1869 bottom != dirty.bottom) { 1870 mAttachInfo.mIgnoreDirtyState = true; 1871 } 1872 1873 // TODO: Do this in native 1874 canvas.setDensity(mDensity); 1875 } catch (Surface.OutOfResourcesException e) { 1876 Log.e(TAG, "OutOfResourcesException locking surface", e); 1877 try { 1878 if (!sWindowSession.outOfMemory(mWindow)) { 1879 Slog.w(TAG, "No processes killed for memory; killing self"); 1880 Process.killProcess(Process.myPid()); 1881 } 1882 } catch (RemoteException ex) { 1883 } 1884 mLayoutRequested = true; // ask wm for a new surface next time. 1885 return; 1886 } catch (IllegalArgumentException e) { 1887 Log.e(TAG, "IllegalArgumentException locking surface", e); 1888 // Don't assume this is due to out of memory, it could be 1889 // something else, and if it is something else then we could 1890 // kill stuff (or ourself) for no reason. 1891 mLayoutRequested = true; // ask wm for a new surface next time. 1892 return; 1893 } 1894 1895 try { 1896 if (!dirty.isEmpty() || mIsAnimating) { 1897 long startTime = 0L; 1898 1899 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1900 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1901 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1902 //canvas.drawARGB(255, 255, 0, 0); 1903 } 1904 1905 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1906 startTime = SystemClock.elapsedRealtime(); 1907 } 1908 1909 // If this bitmap's format includes an alpha channel, we 1910 // need to clear it before drawing so that the child will 1911 // properly re-composite its drawing on a transparent 1912 // background. This automatically respects the clip/dirty region 1913 // or 1914 // If we are applying an offset, we need to clear the area 1915 // where the offset doesn't appear to avoid having garbage 1916 // left in the blank areas. 1917 if (!canvas.isOpaque() || yoff != 0) { 1918 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1919 } 1920 1921 dirty.setEmpty(); 1922 mIsAnimating = false; 1923 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1924 mView.mPrivateFlags |= View.DRAWN; 1925 1926 if (DEBUG_DRAW) { 1927 Context cxt = mView.getContext(); 1928 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1929 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1930 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1931 } 1932 try { 1933 canvas.translate(0, -yoff); 1934 if (mTranslator != null) { 1935 mTranslator.translateCanvas(canvas); 1936 } 1937 canvas.setScreenDensity(scalingRequired 1938 ? DisplayMetrics.DENSITY_DEVICE : 0); 1939 mAttachInfo.mSetIgnoreDirtyState = false; 1940 mView.draw(canvas); 1941 } finally { 1942 if (!mAttachInfo.mSetIgnoreDirtyState) { 1943 // Only clear the flag if it was not set during the mView.draw() call 1944 mAttachInfo.mIgnoreDirtyState = false; 1945 } 1946 } 1947 1948 if (false && ViewDebug.consistencyCheckEnabled) { 1949 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1950 } 1951 1952 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1953 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1954 } 1955 } 1956 1957 } finally { 1958 surface.unlockCanvasAndPost(canvas); 1959 } 1960 } 1961 1962 if (LOCAL_LOGV) { 1963 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1964 } 1965 1966 if (animating) { 1967 mFullRedrawNeeded = true; 1968 scheduleTraversals(); 1969 } 1970 } 1971 1972 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1973 final View.AttachInfo attachInfo = mAttachInfo; 1974 final Rect ci = attachInfo.mContentInsets; 1975 final Rect vi = attachInfo.mVisibleInsets; 1976 int scrollY = 0; 1977 boolean handled = false; 1978 1979 if (vi.left > ci.left || vi.top > ci.top 1980 || vi.right > ci.right || vi.bottom > ci.bottom) { 1981 // We'll assume that we aren't going to change the scroll 1982 // offset, since we want to avoid that unless it is actually 1983 // going to make the focus visible... otherwise we scroll 1984 // all over the place. 1985 scrollY = mScrollY; 1986 // We can be called for two different situations: during a draw, 1987 // to update the scroll position if the focus has changed (in which 1988 // case 'rectangle' is null), or in response to a 1989 // requestChildRectangleOnScreen() call (in which case 'rectangle' 1990 // is non-null and we just want to scroll to whatever that 1991 // rectangle is). 1992 View focus = mRealFocusedView; 1993 1994 // When in touch mode, focus points to the previously focused view, 1995 // which may have been removed from the view hierarchy. The following 1996 // line checks whether the view is still in our hierarchy. 1997 if (focus == null || focus.mAttachInfo != mAttachInfo) { 1998 mRealFocusedView = null; 1999 return false; 2000 } 2001 2002 if (focus != mLastScrolledFocus) { 2003 // If the focus has changed, then ignore any requests to scroll 2004 // to a rectangle; first we want to make sure the entire focus 2005 // view is visible. 2006 rectangle = null; 2007 } 2008 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2009 + " rectangle=" + rectangle + " ci=" + ci 2010 + " vi=" + vi); 2011 if (focus == mLastScrolledFocus && !mScrollMayChange 2012 && rectangle == null) { 2013 // Optimization: if the focus hasn't changed since last 2014 // time, and no layout has happened, then just leave things 2015 // as they are. 2016 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2017 + mScrollY + " vi=" + vi.toShortString()); 2018 } else if (focus != null) { 2019 // We need to determine if the currently focused view is 2020 // within the visible part of the window and, if not, apply 2021 // a pan so it can be seen. 2022 mLastScrolledFocus = focus; 2023 mScrollMayChange = false; 2024 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2025 // Try to find the rectangle from the focus view. 2026 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2027 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2028 + mView.getWidth() + " h=" + mView.getHeight() 2029 + " ci=" + ci.toShortString() 2030 + " vi=" + vi.toShortString()); 2031 if (rectangle == null) { 2032 focus.getFocusedRect(mTempRect); 2033 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2034 + ": focusRect=" + mTempRect.toShortString()); 2035 if (mView instanceof ViewGroup) { 2036 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2037 focus, mTempRect); 2038 } 2039 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2040 "Focus in window: focusRect=" 2041 + mTempRect.toShortString() 2042 + " visRect=" + mVisRect.toShortString()); 2043 } else { 2044 mTempRect.set(rectangle); 2045 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2046 "Request scroll to rect: " 2047 + mTempRect.toShortString() 2048 + " visRect=" + mVisRect.toShortString()); 2049 } 2050 if (mTempRect.intersect(mVisRect)) { 2051 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2052 "Focus window visible rect: " 2053 + mTempRect.toShortString()); 2054 if (mTempRect.height() > 2055 (mView.getHeight()-vi.top-vi.bottom)) { 2056 // If the focus simply is not going to fit, then 2057 // best is probably just to leave things as-is. 2058 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2059 "Too tall; leaving scrollY=" + scrollY); 2060 } else if ((mTempRect.top-scrollY) < vi.top) { 2061 scrollY -= vi.top - (mTempRect.top-scrollY); 2062 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2063 "Top covered; scrollY=" + scrollY); 2064 } else if ((mTempRect.bottom-scrollY) 2065 > (mView.getHeight()-vi.bottom)) { 2066 scrollY += (mTempRect.bottom-scrollY) 2067 - (mView.getHeight()-vi.bottom); 2068 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2069 "Bottom covered; scrollY=" + scrollY); 2070 } 2071 handled = true; 2072 } 2073 } 2074 } 2075 } 2076 2077 if (scrollY != mScrollY) { 2078 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2079 + mScrollY + " , new=" + scrollY); 2080 if (!immediate && mResizeBuffer == null) { 2081 if (mScroller == null) { 2082 mScroller = new Scroller(mView.getContext()); 2083 } 2084 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2085 } else if (mScroller != null) { 2086 mScroller.abortAnimation(); 2087 } 2088 mScrollY = scrollY; 2089 } 2090 2091 return handled; 2092 } 2093 2094 public void requestChildFocus(View child, View focused) { 2095 checkThread(); 2096 if (mFocusedView != focused) { 2097 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2098 scheduleTraversals(); 2099 } 2100 mFocusedView = mRealFocusedView = focused; 2101 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2102 + mFocusedView); 2103 } 2104 2105 public void clearChildFocus(View child) { 2106 checkThread(); 2107 2108 View oldFocus = mFocusedView; 2109 2110 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2111 mFocusedView = mRealFocusedView = null; 2112 if (mView != null && !mView.hasFocus()) { 2113 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2114 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2115 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2116 } 2117 } else if (oldFocus != null) { 2118 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2119 } 2120 } 2121 2122 2123 public void focusableViewAvailable(View v) { 2124 checkThread(); 2125 2126 if (mView != null) { 2127 if (!mView.hasFocus()) { 2128 v.requestFocus(); 2129 } else { 2130 // the one case where will transfer focus away from the current one 2131 // is if the current view is a view group that prefers to give focus 2132 // to its children first AND the view is a descendant of it. 2133 mFocusedView = mView.findFocus(); 2134 boolean descendantsHaveDibsOnFocus = 2135 (mFocusedView instanceof ViewGroup) && 2136 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2137 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2138 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2139 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2140 v.requestFocus(); 2141 } 2142 } 2143 } 2144 } 2145 2146 public void recomputeViewAttributes(View child) { 2147 checkThread(); 2148 if (mView == child) { 2149 mAttachInfo.mRecomputeGlobalAttributes = true; 2150 if (!mWillDrawSoon) { 2151 scheduleTraversals(); 2152 } 2153 } 2154 } 2155 2156 void dispatchDetachedFromWindow() { 2157 if (mView != null && mView.mAttachInfo != null) { 2158 if (mAttachInfo.mHardwareRenderer != null && 2159 mAttachInfo.mHardwareRenderer.isEnabled()) { 2160 mAttachInfo.mHardwareRenderer.validate(); 2161 } 2162 mView.dispatchDetachedFromWindow(); 2163 } 2164 2165 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2166 mAccessibilityManager.removeAccessibilityStateChangeListener( 2167 mAccessibilityInteractionConnectionManager); 2168 removeSendWindowContentChangedCallback(); 2169 2170 mView = null; 2171 mAttachInfo.mRootView = null; 2172 mAttachInfo.mSurface = null; 2173 2174 destroyHardwareRenderer(); 2175 2176 mSurface.release(); 2177 2178 if (mInputQueueCallback != null && mInputQueue != null) { 2179 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2180 mInputQueueCallback = null; 2181 mInputQueue = null; 2182 } else if (mInputChannel != null) { 2183 InputQueue.unregisterInputChannel(mInputChannel); 2184 } 2185 try { 2186 sWindowSession.remove(mWindow); 2187 } catch (RemoteException e) { 2188 } 2189 2190 // Dispose the input channel after removing the window so the Window Manager 2191 // doesn't interpret the input channel being closed as an abnormal termination. 2192 if (mInputChannel != null) { 2193 mInputChannel.dispose(); 2194 mInputChannel = null; 2195 } 2196 } 2197 2198 void updateConfiguration(Configuration config, boolean force) { 2199 if (DEBUG_CONFIGURATION) Log.v(TAG, 2200 "Applying new config to window " 2201 + mWindowAttributes.getTitle() 2202 + ": " + config); 2203 2204 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2205 if (ci != null) { 2206 config = new Configuration(config); 2207 ci.applyToConfiguration(config); 2208 } 2209 2210 synchronized (sConfigCallbacks) { 2211 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2212 sConfigCallbacks.get(i).onConfigurationChanged(config); 2213 } 2214 } 2215 if (mView != null) { 2216 // At this point the resources have been updated to 2217 // have the most recent config, whatever that is. Use 2218 // the on in them which may be newer. 2219 config = mView.getResources().getConfiguration(); 2220 if (force || mLastConfiguration.diff(config) != 0) { 2221 mLastConfiguration.setTo(config); 2222 mView.dispatchConfigurationChanged(config); 2223 } 2224 } 2225 } 2226 2227 /** 2228 * Return true if child is an ancestor of parent, (or equal to the parent). 2229 */ 2230 private static boolean isViewDescendantOf(View child, View parent) { 2231 if (child == parent) { 2232 return true; 2233 } 2234 2235 final ViewParent theParent = child.getParent(); 2236 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2237 } 2238 2239 private static void forceLayout(View view) { 2240 view.forceLayout(); 2241 if (view instanceof ViewGroup) { 2242 ViewGroup group = (ViewGroup) view; 2243 final int count = group.getChildCount(); 2244 for (int i = 0; i < count; i++) { 2245 forceLayout(group.getChildAt(i)); 2246 } 2247 } 2248 } 2249 2250 public final static int DO_TRAVERSAL = 1000; 2251 public final static int DIE = 1001; 2252 public final static int RESIZED = 1002; 2253 public final static int RESIZED_REPORT = 1003; 2254 public final static int WINDOW_FOCUS_CHANGED = 1004; 2255 public final static int DISPATCH_KEY = 1005; 2256 public final static int DISPATCH_POINTER = 1006; 2257 public final static int DISPATCH_TRACKBALL = 1007; 2258 public final static int DISPATCH_APP_VISIBILITY = 1008; 2259 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2260 public final static int FINISHED_EVENT = 1010; 2261 public final static int DISPATCH_KEY_FROM_IME = 1011; 2262 public final static int FINISH_INPUT_CONNECTION = 1012; 2263 public final static int CHECK_FOCUS = 1013; 2264 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2265 public final static int DISPATCH_DRAG_EVENT = 1015; 2266 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2267 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2268 public final static int DISPATCH_GENERIC_MOTION = 1018; 2269 public final static int UPDATE_CONFIGURATION = 1019; 2270 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2271 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2272 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2273 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2274 2275 @Override 2276 public String getMessageName(Message message) { 2277 switch (message.what) { 2278 case DO_TRAVERSAL: 2279 return "DO_TRAVERSAL"; 2280 case DIE: 2281 return "DIE"; 2282 case RESIZED: 2283 return "RESIZED"; 2284 case RESIZED_REPORT: 2285 return "RESIZED_REPORT"; 2286 case WINDOW_FOCUS_CHANGED: 2287 return "WINDOW_FOCUS_CHANGED"; 2288 case DISPATCH_KEY: 2289 return "DISPATCH_KEY"; 2290 case DISPATCH_POINTER: 2291 return "DISPATCH_POINTER"; 2292 case DISPATCH_TRACKBALL: 2293 return "DISPATCH_TRACKBALL"; 2294 case DISPATCH_APP_VISIBILITY: 2295 return "DISPATCH_APP_VISIBILITY"; 2296 case DISPATCH_GET_NEW_SURFACE: 2297 return "DISPATCH_GET_NEW_SURFACE"; 2298 case FINISHED_EVENT: 2299 return "FINISHED_EVENT"; 2300 case DISPATCH_KEY_FROM_IME: 2301 return "DISPATCH_KEY_FROM_IME"; 2302 case FINISH_INPUT_CONNECTION: 2303 return "FINISH_INPUT_CONNECTION"; 2304 case CHECK_FOCUS: 2305 return "CHECK_FOCUS"; 2306 case CLOSE_SYSTEM_DIALOGS: 2307 return "CLOSE_SYSTEM_DIALOGS"; 2308 case DISPATCH_DRAG_EVENT: 2309 return "DISPATCH_DRAG_EVENT"; 2310 case DISPATCH_DRAG_LOCATION_EVENT: 2311 return "DISPATCH_DRAG_LOCATION_EVENT"; 2312 case DISPATCH_SYSTEM_UI_VISIBILITY: 2313 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2314 case DISPATCH_GENERIC_MOTION: 2315 return "DISPATCH_GENERIC_MOTION"; 2316 case UPDATE_CONFIGURATION: 2317 return "UPDATE_CONFIGURATION"; 2318 case DO_PERFORM_ACCESSIBILITY_ACTION: 2319 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2320 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2321 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2322 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2323 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2324 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2325 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2326 2327 } 2328 return super.getMessageName(message); 2329 } 2330 2331 @Override 2332 public void handleMessage(Message msg) { 2333 switch (msg.what) { 2334 case View.AttachInfo.INVALIDATE_MSG: 2335 ((View) msg.obj).invalidate(); 2336 break; 2337 case View.AttachInfo.INVALIDATE_RECT_MSG: 2338 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2339 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2340 info.release(); 2341 break; 2342 case DO_TRAVERSAL: 2343 if (mProfile) { 2344 Debug.startMethodTracing("ViewAncestor"); 2345 } 2346 2347 final long traversalStartTime; 2348 if (ViewDebug.DEBUG_LATENCY) { 2349 traversalStartTime = System.nanoTime(); 2350 mLastDrawDurationNanos = 0; 2351 } 2352 2353 performTraversals(); 2354 2355 if (ViewDebug.DEBUG_LATENCY) { 2356 long now = System.nanoTime(); 2357 Log.d(TAG, "Latency: Spent " 2358 + ((now - traversalStartTime) * 0.000001f) 2359 + "ms in performTraversals(), with " 2360 + (mLastDrawDurationNanos * 0.000001f) 2361 + "ms of that time in draw()"); 2362 mLastTraversalFinishedTimeNanos = now; 2363 } 2364 2365 if (mProfile) { 2366 Debug.stopMethodTracing(); 2367 mProfile = false; 2368 } 2369 break; 2370 case FINISHED_EVENT: 2371 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2372 break; 2373 case DISPATCH_KEY: 2374 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2375 break; 2376 case DISPATCH_POINTER: 2377 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2378 break; 2379 case DISPATCH_TRACKBALL: 2380 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2381 break; 2382 case DISPATCH_GENERIC_MOTION: 2383 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2384 break; 2385 case DISPATCH_APP_VISIBILITY: 2386 handleAppVisibility(msg.arg1 != 0); 2387 break; 2388 case DISPATCH_GET_NEW_SURFACE: 2389 handleGetNewSurface(); 2390 break; 2391 case RESIZED: 2392 ResizedInfo ri = (ResizedInfo)msg.obj; 2393 2394 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2395 && mPendingContentInsets.equals(ri.coveredInsets) 2396 && mPendingVisibleInsets.equals(ri.visibleInsets) 2397 && ((ResizedInfo)msg.obj).newConfig == null) { 2398 break; 2399 } 2400 // fall through... 2401 case RESIZED_REPORT: 2402 if (mAdded) { 2403 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2404 if (config != null) { 2405 updateConfiguration(config, false); 2406 } 2407 mWinFrame.left = 0; 2408 mWinFrame.right = msg.arg1; 2409 mWinFrame.top = 0; 2410 mWinFrame.bottom = msg.arg2; 2411 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2412 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2413 if (msg.what == RESIZED_REPORT) { 2414 mReportNextDraw = true; 2415 } 2416 2417 if (mView != null) { 2418 forceLayout(mView); 2419 } 2420 requestLayout(); 2421 } 2422 break; 2423 case WINDOW_FOCUS_CHANGED: { 2424 if (mAdded) { 2425 boolean hasWindowFocus = msg.arg1 != 0; 2426 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2427 2428 profileRendering(hasWindowFocus); 2429 2430 if (hasWindowFocus) { 2431 boolean inTouchMode = msg.arg2 != 0; 2432 ensureTouchModeLocally(inTouchMode); 2433 2434 if (mAttachInfo.mHardwareRenderer != null && 2435 mSurface != null && mSurface.isValid()) { 2436 mFullRedrawNeeded = true; 2437 try { 2438 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2439 mAttachInfo, mHolder); 2440 } catch (Surface.OutOfResourcesException e) { 2441 Log.e(TAG, "OutOfResourcesException locking surface", e); 2442 try { 2443 if (!sWindowSession.outOfMemory(mWindow)) { 2444 Slog.w(TAG, "No processes killed for memory; killing self"); 2445 Process.killProcess(Process.myPid()); 2446 } 2447 } catch (RemoteException ex) { 2448 } 2449 // Retry in a bit. 2450 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2451 return; 2452 } 2453 } 2454 } 2455 2456 mLastWasImTarget = WindowManager.LayoutParams 2457 .mayUseInputMethod(mWindowAttributes.flags); 2458 2459 InputMethodManager imm = InputMethodManager.peekInstance(); 2460 if (mView != null) { 2461 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2462 imm.startGettingWindowFocus(mView); 2463 } 2464 mAttachInfo.mKeyDispatchState.reset(); 2465 mView.dispatchWindowFocusChanged(hasWindowFocus); 2466 } 2467 2468 // Note: must be done after the focus change callbacks, 2469 // so all of the view state is set up correctly. 2470 if (hasWindowFocus) { 2471 if (imm != null && mLastWasImTarget) { 2472 imm.onWindowFocus(mView, mView.findFocus(), 2473 mWindowAttributes.softInputMode, 2474 !mHasHadWindowFocus, mWindowAttributes.flags); 2475 } 2476 // Clear the forward bit. We can just do this directly, since 2477 // the window manager doesn't care about it. 2478 mWindowAttributes.softInputMode &= 2479 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2480 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2481 .softInputMode &= 2482 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2483 mHasHadWindowFocus = true; 2484 } 2485 2486 if (hasWindowFocus && mView != null) { 2487 sendAccessibilityEvents(); 2488 } 2489 } 2490 } break; 2491 case DIE: 2492 doDie(); 2493 break; 2494 case DISPATCH_KEY_FROM_IME: { 2495 if (LOCAL_LOGV) Log.v( 2496 TAG, "Dispatching key " 2497 + msg.obj + " from IME to " + mView); 2498 KeyEvent event = (KeyEvent)msg.obj; 2499 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2500 // The IME is trying to say this event is from the 2501 // system! Bad bad bad! 2502 //noinspection UnusedAssignment 2503 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2504 } 2505 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2506 } break; 2507 case FINISH_INPUT_CONNECTION: { 2508 InputMethodManager imm = InputMethodManager.peekInstance(); 2509 if (imm != null) { 2510 imm.reportFinishInputConnection((InputConnection)msg.obj); 2511 } 2512 } break; 2513 case CHECK_FOCUS: { 2514 InputMethodManager imm = InputMethodManager.peekInstance(); 2515 if (imm != null) { 2516 imm.checkFocus(); 2517 } 2518 } break; 2519 case CLOSE_SYSTEM_DIALOGS: { 2520 if (mView != null) { 2521 mView.onCloseSystemDialogs((String)msg.obj); 2522 } 2523 } break; 2524 case DISPATCH_DRAG_EVENT: 2525 case DISPATCH_DRAG_LOCATION_EVENT: { 2526 DragEvent event = (DragEvent)msg.obj; 2527 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2528 handleDragEvent(event); 2529 } break; 2530 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2531 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2532 } break; 2533 case UPDATE_CONFIGURATION: { 2534 Configuration config = (Configuration)msg.obj; 2535 if (config.isOtherSeqNewer(mLastConfiguration)) { 2536 config = mLastConfiguration; 2537 } 2538 updateConfiguration(config, false); 2539 } break; 2540 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2541 if (mView != null) { 2542 getAccessibilityInteractionController() 2543 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2544 } 2545 } break; 2546 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2547 if (mView != null) { 2548 getAccessibilityInteractionController() 2549 .perfromAccessibilityActionUiThread(msg); 2550 } 2551 } break; 2552 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2553 if (mView != null) { 2554 getAccessibilityInteractionController() 2555 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2556 } 2557 } break; 2558 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2559 if (mView != null) { 2560 getAccessibilityInteractionController() 2561 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2562 } 2563 } break; 2564 } 2565 } 2566 2567 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2568 if (mFinishedCallback != null) { 2569 Slog.w(TAG, "Received a new input event from the input queue but there is " 2570 + "already an unfinished input event in progress."); 2571 } 2572 2573 if (ViewDebug.DEBUG_LATENCY) { 2574 mInputEventReceiveTimeNanos = System.nanoTime(); 2575 mInputEventDeliverTimeNanos = 0; 2576 mInputEventDeliverPostImeTimeNanos = 0; 2577 } 2578 2579 mFinishedCallback = finishedCallback; 2580 } 2581 2582 private void finishInputEvent(InputEvent event, boolean handled) { 2583 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2584 2585 if (mFinishedCallback == null) { 2586 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2587 + "is finished but there is no input event actually in progress."); 2588 return; 2589 } 2590 2591 if (ViewDebug.DEBUG_LATENCY) { 2592 final long now = System.nanoTime(); 2593 final long eventTime = event.getEventTimeNano(); 2594 final StringBuilder msg = new StringBuilder(); 2595 msg.append("Latency: Spent "); 2596 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2597 msg.append("ms processing "); 2598 if (event instanceof KeyEvent) { 2599 final KeyEvent keyEvent = (KeyEvent)event; 2600 msg.append("key event, action="); 2601 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2602 } else { 2603 final MotionEvent motionEvent = (MotionEvent)event; 2604 msg.append("motion event, action="); 2605 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2606 msg.append(", historySize="); 2607 msg.append(motionEvent.getHistorySize()); 2608 } 2609 msg.append(", handled="); 2610 msg.append(handled); 2611 msg.append(", received at +"); 2612 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2613 if (mInputEventDeliverTimeNanos != 0) { 2614 msg.append("ms, delivered at +"); 2615 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2616 } 2617 if (mInputEventDeliverPostImeTimeNanos != 0) { 2618 msg.append("ms, delivered post IME at +"); 2619 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2620 } 2621 msg.append("ms, finished at +"); 2622 msg.append((now - eventTime) * 0.000001f); 2623 msg.append("ms."); 2624 Log.d(TAG, msg.toString()); 2625 } 2626 2627 mFinishedCallback.finished(handled); 2628 mFinishedCallback = null; 2629 } 2630 2631 /** 2632 * Something in the current window tells us we need to change the touch mode. For 2633 * example, we are not in touch mode, and the user touches the screen. 2634 * 2635 * If the touch mode has changed, tell the window manager, and handle it locally. 2636 * 2637 * @param inTouchMode Whether we want to be in touch mode. 2638 * @return True if the touch mode changed and focus changed was changed as a result 2639 */ 2640 boolean ensureTouchMode(boolean inTouchMode) { 2641 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2642 + "touch mode is " + mAttachInfo.mInTouchMode); 2643 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2644 2645 // tell the window manager 2646 try { 2647 sWindowSession.setInTouchMode(inTouchMode); 2648 } catch (RemoteException e) { 2649 throw new RuntimeException(e); 2650 } 2651 2652 // handle the change 2653 return ensureTouchModeLocally(inTouchMode); 2654 } 2655 2656 /** 2657 * Ensure that the touch mode for this window is set, and if it is changing, 2658 * take the appropriate action. 2659 * @param inTouchMode Whether we want to be in touch mode. 2660 * @return True if the touch mode changed and focus changed was changed as a result 2661 */ 2662 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2663 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2664 + "touch mode is " + mAttachInfo.mInTouchMode); 2665 2666 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2667 2668 mAttachInfo.mInTouchMode = inTouchMode; 2669 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2670 2671 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2672 } 2673 2674 private boolean enterTouchMode() { 2675 if (mView != null) { 2676 if (mView.hasFocus()) { 2677 // note: not relying on mFocusedView here because this could 2678 // be when the window is first being added, and mFocused isn't 2679 // set yet. 2680 final View focused = mView.findFocus(); 2681 if (focused != null && !focused.isFocusableInTouchMode()) { 2682 2683 final ViewGroup ancestorToTakeFocus = 2684 findAncestorToTakeFocusInTouchMode(focused); 2685 if (ancestorToTakeFocus != null) { 2686 // there is an ancestor that wants focus after its descendants that 2687 // is focusable in touch mode.. give it focus 2688 return ancestorToTakeFocus.requestFocus(); 2689 } else { 2690 // nothing appropriate to have focus in touch mode, clear it out 2691 mView.unFocus(); 2692 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2693 mFocusedView = null; 2694 return true; 2695 } 2696 } 2697 } 2698 } 2699 return false; 2700 } 2701 2702 2703 /** 2704 * Find an ancestor of focused that wants focus after its descendants and is 2705 * focusable in touch mode. 2706 * @param focused The currently focused view. 2707 * @return An appropriate view, or null if no such view exists. 2708 */ 2709 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2710 ViewParent parent = focused.getParent(); 2711 while (parent instanceof ViewGroup) { 2712 final ViewGroup vgParent = (ViewGroup) parent; 2713 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2714 && vgParent.isFocusableInTouchMode()) { 2715 return vgParent; 2716 } 2717 if (vgParent.isRootNamespace()) { 2718 return null; 2719 } else { 2720 parent = vgParent.getParent(); 2721 } 2722 } 2723 return null; 2724 } 2725 2726 private boolean leaveTouchMode() { 2727 if (mView != null) { 2728 if (mView.hasFocus()) { 2729 // i learned the hard way to not trust mFocusedView :) 2730 mFocusedView = mView.findFocus(); 2731 if (!(mFocusedView instanceof ViewGroup)) { 2732 // some view has focus, let it keep it 2733 return false; 2734 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2735 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2736 // some view group has focus, and doesn't prefer its children 2737 // over itself for focus, so let them keep it. 2738 return false; 2739 } 2740 } 2741 2742 // find the best view to give focus to in this brave new non-touch-mode 2743 // world 2744 final View focused = focusSearch(null, View.FOCUS_DOWN); 2745 if (focused != null) { 2746 return focused.requestFocus(View.FOCUS_DOWN); 2747 } 2748 } 2749 return false; 2750 } 2751 2752 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2753 if (ViewDebug.DEBUG_LATENCY) { 2754 mInputEventDeliverTimeNanos = System.nanoTime(); 2755 } 2756 2757 final boolean isTouchEvent = event.isTouchEvent(); 2758 if (mInputEventConsistencyVerifier != null) { 2759 if (isTouchEvent) { 2760 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2761 } else { 2762 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2763 } 2764 } 2765 2766 // If there is no view, then the event will not be handled. 2767 if (mView == null || !mAdded) { 2768 finishMotionEvent(event, sendDone, false); 2769 return; 2770 } 2771 2772 // Translate the pointer event for compatibility, if needed. 2773 if (mTranslator != null) { 2774 mTranslator.translateEventInScreenToAppWindow(event); 2775 } 2776 2777 // Enter touch mode on down or scroll. 2778 final int action = event.getAction(); 2779 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2780 ensureTouchMode(true); 2781 } 2782 2783 // Offset the scroll position. 2784 if (mCurScrollY != 0) { 2785 event.offsetLocation(0, mCurScrollY); 2786 } 2787 if (MEASURE_LATENCY) { 2788 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2789 } 2790 2791 // Remember the touch position for possible drag-initiation. 2792 if (isTouchEvent) { 2793 mLastTouchPoint.x = event.getRawX(); 2794 mLastTouchPoint.y = event.getRawY(); 2795 } 2796 2797 // Dispatch touch to view hierarchy. 2798 boolean handled = mView.dispatchPointerEvent(event); 2799 if (MEASURE_LATENCY) { 2800 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2801 } 2802 if (handled) { 2803 finishMotionEvent(event, sendDone, true); 2804 return; 2805 } 2806 2807 // Pointer event was unhandled. 2808 finishMotionEvent(event, sendDone, false); 2809 } 2810 2811 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2812 event.recycle(); 2813 if (sendDone) { 2814 finishInputEvent(event, handled); 2815 } 2816 //noinspection ConstantConditions 2817 if (LOCAL_LOGV || WATCH_POINTER) { 2818 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2819 Log.i(TAG, "Done dispatching!"); 2820 } 2821 } 2822 } 2823 2824 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2825 if (ViewDebug.DEBUG_LATENCY) { 2826 mInputEventDeliverTimeNanos = System.nanoTime(); 2827 } 2828 2829 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2830 2831 if (mInputEventConsistencyVerifier != null) { 2832 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2833 } 2834 2835 // If there is no view, then the event will not be handled. 2836 if (mView == null || !mAdded) { 2837 finishMotionEvent(event, sendDone, false); 2838 return; 2839 } 2840 2841 // Deliver the trackball event to the view. 2842 if (mView.dispatchTrackballEvent(event)) { 2843 // If we reach this, we delivered a trackball event to mView and 2844 // mView consumed it. Because we will not translate the trackball 2845 // event into a key event, touch mode will not exit, so we exit 2846 // touch mode here. 2847 ensureTouchMode(false); 2848 2849 finishMotionEvent(event, sendDone, true); 2850 mLastTrackballTime = Integer.MIN_VALUE; 2851 return; 2852 } 2853 2854 // Translate the trackball event into DPAD keys and try to deliver those. 2855 final TrackballAxis x = mTrackballAxisX; 2856 final TrackballAxis y = mTrackballAxisY; 2857 2858 long curTime = SystemClock.uptimeMillis(); 2859 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2860 // It has been too long since the last movement, 2861 // so restart at the beginning. 2862 x.reset(0); 2863 y.reset(0); 2864 mLastTrackballTime = curTime; 2865 } 2866 2867 final int action = event.getAction(); 2868 final int metaState = event.getMetaState(); 2869 switch (action) { 2870 case MotionEvent.ACTION_DOWN: 2871 x.reset(2); 2872 y.reset(2); 2873 deliverKeyEvent(new KeyEvent(curTime, curTime, 2874 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2875 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2876 InputDevice.SOURCE_KEYBOARD), false); 2877 break; 2878 case MotionEvent.ACTION_UP: 2879 x.reset(2); 2880 y.reset(2); 2881 deliverKeyEvent(new KeyEvent(curTime, curTime, 2882 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2883 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2884 InputDevice.SOURCE_KEYBOARD), false); 2885 break; 2886 } 2887 2888 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2889 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2890 + " move=" + event.getX() 2891 + " / Y=" + y.position + " step=" 2892 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2893 + " move=" + event.getY()); 2894 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2895 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2896 2897 // Generate DPAD events based on the trackball movement. 2898 // We pick the axis that has moved the most as the direction of 2899 // the DPAD. When we generate DPAD events for one axis, then the 2900 // other axis is reset -- we don't want to perform DPAD jumps due 2901 // to slight movements in the trackball when making major movements 2902 // along the other axis. 2903 int keycode = 0; 2904 int movement = 0; 2905 float accel = 1; 2906 if (xOff > yOff) { 2907 movement = x.generate((2/event.getXPrecision())); 2908 if (movement != 0) { 2909 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2910 : KeyEvent.KEYCODE_DPAD_LEFT; 2911 accel = x.acceleration; 2912 y.reset(2); 2913 } 2914 } else if (yOff > 0) { 2915 movement = y.generate((2/event.getYPrecision())); 2916 if (movement != 0) { 2917 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2918 : KeyEvent.KEYCODE_DPAD_UP; 2919 accel = y.acceleration; 2920 x.reset(2); 2921 } 2922 } 2923 2924 if (keycode != 0) { 2925 if (movement < 0) movement = -movement; 2926 int accelMovement = (int)(movement * accel); 2927 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2928 + " accelMovement=" + accelMovement 2929 + " accel=" + accel); 2930 if (accelMovement > movement) { 2931 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2932 + keycode); 2933 movement--; 2934 int repeatCount = accelMovement - movement; 2935 deliverKeyEvent(new KeyEvent(curTime, curTime, 2936 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2937 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2938 InputDevice.SOURCE_KEYBOARD), false); 2939 } 2940 while (movement > 0) { 2941 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2942 + keycode); 2943 movement--; 2944 curTime = SystemClock.uptimeMillis(); 2945 deliverKeyEvent(new KeyEvent(curTime, curTime, 2946 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2947 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2948 InputDevice.SOURCE_KEYBOARD), false); 2949 deliverKeyEvent(new KeyEvent(curTime, curTime, 2950 KeyEvent.ACTION_UP, keycode, 0, metaState, 2951 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2952 InputDevice.SOURCE_KEYBOARD), false); 2953 } 2954 mLastTrackballTime = curTime; 2955 } 2956 2957 // Unfortunately we can't tell whether the application consumed the keys, so 2958 // we always consider the trackball event handled. 2959 finishMotionEvent(event, sendDone, true); 2960 } 2961 2962 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2963 if (ViewDebug.DEBUG_LATENCY) { 2964 mInputEventDeliverTimeNanos = System.nanoTime(); 2965 } 2966 2967 if (mInputEventConsistencyVerifier != null) { 2968 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2969 } 2970 2971 final int source = event.getSource(); 2972 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2973 2974 // If there is no view, then the event will not be handled. 2975 if (mView == null || !mAdded) { 2976 if (isJoystick) { 2977 updateJoystickDirection(event, false); 2978 } 2979 finishMotionEvent(event, sendDone, false); 2980 return; 2981 } 2982 2983 // Deliver the event to the view. 2984 if (mView.dispatchGenericMotionEvent(event)) { 2985 if (isJoystick) { 2986 updateJoystickDirection(event, false); 2987 } 2988 finishMotionEvent(event, sendDone, true); 2989 return; 2990 } 2991 2992 if (isJoystick) { 2993 // Translate the joystick event into DPAD keys and try to deliver those. 2994 updateJoystickDirection(event, true); 2995 finishMotionEvent(event, sendDone, true); 2996 } else { 2997 finishMotionEvent(event, sendDone, false); 2998 } 2999 } 3000 3001 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3002 final long time = event.getEventTime(); 3003 final int metaState = event.getMetaState(); 3004 final int deviceId = event.getDeviceId(); 3005 final int source = event.getSource(); 3006 3007 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3008 if (xDirection == 0) { 3009 xDirection = joystickAxisValueToDirection(event.getX()); 3010 } 3011 3012 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3013 if (yDirection == 0) { 3014 yDirection = joystickAxisValueToDirection(event.getY()); 3015 } 3016 3017 if (xDirection != mLastJoystickXDirection) { 3018 if (mLastJoystickXKeyCode != 0) { 3019 deliverKeyEvent(new KeyEvent(time, time, 3020 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3021 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3022 mLastJoystickXKeyCode = 0; 3023 } 3024 3025 mLastJoystickXDirection = xDirection; 3026 3027 if (xDirection != 0 && synthesizeNewKeys) { 3028 mLastJoystickXKeyCode = xDirection > 0 3029 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3030 deliverKeyEvent(new KeyEvent(time, time, 3031 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3032 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3033 } 3034 } 3035 3036 if (yDirection != mLastJoystickYDirection) { 3037 if (mLastJoystickYKeyCode != 0) { 3038 deliverKeyEvent(new KeyEvent(time, time, 3039 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3040 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3041 mLastJoystickYKeyCode = 0; 3042 } 3043 3044 mLastJoystickYDirection = yDirection; 3045 3046 if (yDirection != 0 && synthesizeNewKeys) { 3047 mLastJoystickYKeyCode = yDirection > 0 3048 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3049 deliverKeyEvent(new KeyEvent(time, time, 3050 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3051 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3052 } 3053 } 3054 } 3055 3056 private static int joystickAxisValueToDirection(float value) { 3057 if (value >= 0.5f) { 3058 return 1; 3059 } else if (value <= -0.5f) { 3060 return -1; 3061 } else { 3062 return 0; 3063 } 3064 } 3065 3066 /** 3067 * Returns true if the key is used for keyboard navigation. 3068 * @param keyEvent The key event. 3069 * @return True if the key is used for keyboard navigation. 3070 */ 3071 private static boolean isNavigationKey(KeyEvent keyEvent) { 3072 switch (keyEvent.getKeyCode()) { 3073 case KeyEvent.KEYCODE_DPAD_LEFT: 3074 case KeyEvent.KEYCODE_DPAD_RIGHT: 3075 case KeyEvent.KEYCODE_DPAD_UP: 3076 case KeyEvent.KEYCODE_DPAD_DOWN: 3077 case KeyEvent.KEYCODE_DPAD_CENTER: 3078 case KeyEvent.KEYCODE_PAGE_UP: 3079 case KeyEvent.KEYCODE_PAGE_DOWN: 3080 case KeyEvent.KEYCODE_MOVE_HOME: 3081 case KeyEvent.KEYCODE_MOVE_END: 3082 case KeyEvent.KEYCODE_TAB: 3083 case KeyEvent.KEYCODE_SPACE: 3084 case KeyEvent.KEYCODE_ENTER: 3085 return true; 3086 } 3087 return false; 3088 } 3089 3090 /** 3091 * Returns true if the key is used for typing. 3092 * @param keyEvent The key event. 3093 * @return True if the key is used for typing. 3094 */ 3095 private static boolean isTypingKey(KeyEvent keyEvent) { 3096 return keyEvent.getUnicodeChar() > 0; 3097 } 3098 3099 /** 3100 * See if the key event means we should leave touch mode (and leave touch mode if so). 3101 * @param event The key event. 3102 * @return Whether this key event should be consumed (meaning the act of 3103 * leaving touch mode alone is considered the event). 3104 */ 3105 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3106 // Only relevant in touch mode. 3107 if (!mAttachInfo.mInTouchMode) { 3108 return false; 3109 } 3110 3111 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3112 final int action = event.getAction(); 3113 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3114 return false; 3115 } 3116 3117 // Don't leave touch mode if the IME told us not to. 3118 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3119 return false; 3120 } 3121 3122 // If the key can be used for keyboard navigation then leave touch mode 3123 // and select a focused view if needed (in ensureTouchMode). 3124 // When a new focused view is selected, we consume the navigation key because 3125 // navigation doesn't make much sense unless a view already has focus so 3126 // the key's purpose is to set focus. 3127 if (isNavigationKey(event)) { 3128 return ensureTouchMode(false); 3129 } 3130 3131 // If the key can be used for typing then leave touch mode 3132 // and select a focused view if needed (in ensureTouchMode). 3133 // Always allow the view to process the typing key. 3134 if (isTypingKey(event)) { 3135 ensureTouchMode(false); 3136 return false; 3137 } 3138 3139 return false; 3140 } 3141 3142 int enqueuePendingEvent(Object event, boolean sendDone) { 3143 int seq = mPendingEventSeq+1; 3144 if (seq < 0) seq = 0; 3145 mPendingEventSeq = seq; 3146 mPendingEvents.put(seq, event); 3147 return sendDone ? seq : -seq; 3148 } 3149 3150 Object retrievePendingEvent(int seq) { 3151 if (seq < 0) seq = -seq; 3152 Object event = mPendingEvents.get(seq); 3153 if (event != null) { 3154 mPendingEvents.remove(seq); 3155 } 3156 return event; 3157 } 3158 3159 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3160 if (ViewDebug.DEBUG_LATENCY) { 3161 mInputEventDeliverTimeNanos = System.nanoTime(); 3162 } 3163 3164 if (mInputEventConsistencyVerifier != null) { 3165 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3166 } 3167 3168 // If there is no view, then the event will not be handled. 3169 if (mView == null || !mAdded) { 3170 finishKeyEvent(event, sendDone, false); 3171 return; 3172 } 3173 3174 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3175 3176 // Perform predispatching before the IME. 3177 if (mView.dispatchKeyEventPreIme(event)) { 3178 finishKeyEvent(event, sendDone, true); 3179 return; 3180 } 3181 3182 // Dispatch to the IME before propagating down the view hierarchy. 3183 // The IME will eventually call back into handleFinishedEvent. 3184 if (mLastWasImTarget) { 3185 InputMethodManager imm = InputMethodManager.peekInstance(); 3186 if (imm != null) { 3187 int seq = enqueuePendingEvent(event, sendDone); 3188 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3189 + seq + " event=" + event); 3190 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3191 return; 3192 } 3193 } 3194 3195 // Not dispatching to IME, continue with post IME actions. 3196 deliverKeyEventPostIme(event, sendDone); 3197 } 3198 3199 private void handleFinishedEvent(int seq, boolean handled) { 3200 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3201 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3202 + " handled=" + handled + " event=" + event); 3203 if (event != null) { 3204 final boolean sendDone = seq >= 0; 3205 if (handled) { 3206 finishKeyEvent(event, sendDone, true); 3207 } else { 3208 deliverKeyEventPostIme(event, sendDone); 3209 } 3210 } 3211 } 3212 3213 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3214 if (ViewDebug.DEBUG_LATENCY) { 3215 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3216 } 3217 3218 // If the view went away, then the event will not be handled. 3219 if (mView == null || !mAdded) { 3220 finishKeyEvent(event, sendDone, false); 3221 return; 3222 } 3223 3224 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3225 if (checkForLeavingTouchModeAndConsume(event)) { 3226 finishKeyEvent(event, sendDone, true); 3227 return; 3228 } 3229 3230 // Make sure the fallback event policy sees all keys that will be delivered to the 3231 // view hierarchy. 3232 mFallbackEventHandler.preDispatchKeyEvent(event); 3233 3234 // Deliver the key to the view hierarchy. 3235 if (mView.dispatchKeyEvent(event)) { 3236 finishKeyEvent(event, sendDone, true); 3237 return; 3238 } 3239 3240 // If the Control modifier is held, try to interpret the key as a shortcut. 3241 if (event.getAction() == KeyEvent.ACTION_UP 3242 && event.isCtrlPressed() 3243 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3244 if (mView.dispatchKeyShortcutEvent(event)) { 3245 finishKeyEvent(event, sendDone, true); 3246 return; 3247 } 3248 } 3249 3250 // Apply the fallback event policy. 3251 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3252 finishKeyEvent(event, sendDone, true); 3253 return; 3254 } 3255 3256 // Handle automatic focus changes. 3257 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3258 int direction = 0; 3259 switch (event.getKeyCode()) { 3260 case KeyEvent.KEYCODE_DPAD_LEFT: 3261 if (event.hasNoModifiers()) { 3262 direction = View.FOCUS_LEFT; 3263 } 3264 break; 3265 case KeyEvent.KEYCODE_DPAD_RIGHT: 3266 if (event.hasNoModifiers()) { 3267 direction = View.FOCUS_RIGHT; 3268 } 3269 break; 3270 case KeyEvent.KEYCODE_DPAD_UP: 3271 if (event.hasNoModifiers()) { 3272 direction = View.FOCUS_UP; 3273 } 3274 break; 3275 case KeyEvent.KEYCODE_DPAD_DOWN: 3276 if (event.hasNoModifiers()) { 3277 direction = View.FOCUS_DOWN; 3278 } 3279 break; 3280 case KeyEvent.KEYCODE_TAB: 3281 if (event.hasNoModifiers()) { 3282 direction = View.FOCUS_FORWARD; 3283 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3284 direction = View.FOCUS_BACKWARD; 3285 } 3286 break; 3287 } 3288 3289 if (direction != 0) { 3290 View focused = mView != null ? mView.findFocus() : null; 3291 if (focused != null) { 3292 View v = focused.focusSearch(direction); 3293 if (v != null && v != focused) { 3294 // do the math the get the interesting rect 3295 // of previous focused into the coord system of 3296 // newly focused view 3297 focused.getFocusedRect(mTempRect); 3298 if (mView instanceof ViewGroup) { 3299 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3300 focused, mTempRect); 3301 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3302 v, mTempRect); 3303 } 3304 if (v.requestFocus(direction, mTempRect)) { 3305 playSoundEffect( 3306 SoundEffectConstants.getContantForFocusDirection(direction)); 3307 finishKeyEvent(event, sendDone, true); 3308 return; 3309 } 3310 } 3311 3312 // Give the focused view a last chance to handle the dpad key. 3313 if (mView.dispatchUnhandledMove(focused, direction)) { 3314 finishKeyEvent(event, sendDone, true); 3315 return; 3316 } 3317 } 3318 } 3319 } 3320 3321 // Key was unhandled. 3322 finishKeyEvent(event, sendDone, false); 3323 } 3324 3325 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3326 if (sendDone) { 3327 finishInputEvent(event, handled); 3328 } 3329 } 3330 3331 /* drag/drop */ 3332 void setLocalDragState(Object obj) { 3333 mLocalDragState = obj; 3334 } 3335 3336 private void handleDragEvent(DragEvent event) { 3337 // From the root, only drag start/end/location are dispatched. entered/exited 3338 // are determined and dispatched by the viewgroup hierarchy, who then report 3339 // that back here for ultimate reporting back to the framework. 3340 if (mView != null && mAdded) { 3341 final int what = event.mAction; 3342 3343 if (what == DragEvent.ACTION_DRAG_EXITED) { 3344 // A direct EXITED event means that the window manager knows we've just crossed 3345 // a window boundary, so the current drag target within this one must have 3346 // just been exited. Send it the usual notifications and then we're done 3347 // for now. 3348 mView.dispatchDragEvent(event); 3349 } else { 3350 // Cache the drag description when the operation starts, then fill it in 3351 // on subsequent calls as a convenience 3352 if (what == DragEvent.ACTION_DRAG_STARTED) { 3353 mCurrentDragView = null; // Start the current-recipient tracking 3354 mDragDescription = event.mClipDescription; 3355 } else { 3356 event.mClipDescription = mDragDescription; 3357 } 3358 3359 // For events with a [screen] location, translate into window coordinates 3360 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3361 mDragPoint.set(event.mX, event.mY); 3362 if (mTranslator != null) { 3363 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3364 } 3365 3366 if (mCurScrollY != 0) { 3367 mDragPoint.offset(0, mCurScrollY); 3368 } 3369 3370 event.mX = mDragPoint.x; 3371 event.mY = mDragPoint.y; 3372 } 3373 3374 // Remember who the current drag target is pre-dispatch 3375 final View prevDragView = mCurrentDragView; 3376 3377 // Now dispatch the drag/drop event 3378 boolean result = mView.dispatchDragEvent(event); 3379 3380 // If we changed apparent drag target, tell the OS about it 3381 if (prevDragView != mCurrentDragView) { 3382 try { 3383 if (prevDragView != null) { 3384 sWindowSession.dragRecipientExited(mWindow); 3385 } 3386 if (mCurrentDragView != null) { 3387 sWindowSession.dragRecipientEntered(mWindow); 3388 } 3389 } catch (RemoteException e) { 3390 Slog.e(TAG, "Unable to note drag target change"); 3391 } 3392 } 3393 3394 // Report the drop result when we're done 3395 if (what == DragEvent.ACTION_DROP) { 3396 mDragDescription = null; 3397 try { 3398 Log.i(TAG, "Reporting drop result: " + result); 3399 sWindowSession.reportDropResult(mWindow, result); 3400 } catch (RemoteException e) { 3401 Log.e(TAG, "Unable to report drop result"); 3402 } 3403 } 3404 3405 // When the drag operation ends, release any local state object 3406 // that may have been in use 3407 if (what == DragEvent.ACTION_DRAG_ENDED) { 3408 setLocalDragState(null); 3409 } 3410 } 3411 } 3412 event.recycle(); 3413 } 3414 3415 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3416 if (mView == null) return; 3417 if (mAttachInfo != null) { 3418 mAttachInfo.mSystemUiVisibility = visibility; 3419 } 3420 mView.dispatchSystemUiVisibilityChanged(visibility); 3421 } 3422 3423 public void getLastTouchPoint(Point outLocation) { 3424 outLocation.x = (int) mLastTouchPoint.x; 3425 outLocation.y = (int) mLastTouchPoint.y; 3426 } 3427 3428 public void setDragFocus(View newDragTarget) { 3429 if (mCurrentDragView != newDragTarget) { 3430 mCurrentDragView = newDragTarget; 3431 } 3432 } 3433 3434 private AudioManager getAudioManager() { 3435 if (mView == null) { 3436 throw new IllegalStateException("getAudioManager called when there is no mView"); 3437 } 3438 if (mAudioManager == null) { 3439 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3440 } 3441 return mAudioManager; 3442 } 3443 3444 public AccessibilityInteractionController getAccessibilityInteractionController() { 3445 if (mView == null) { 3446 throw new IllegalStateException("getAccessibilityInteractionController" 3447 + " called when there is no mView"); 3448 } 3449 if (mAccessibilityInteractionContrtoller == null) { 3450 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3451 } 3452 return mAccessibilityInteractionContrtoller; 3453 } 3454 3455 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3456 boolean insetsPending) throws RemoteException { 3457 3458 float appScale = mAttachInfo.mApplicationScale; 3459 boolean restore = false; 3460 if (params != null && mTranslator != null) { 3461 restore = true; 3462 params.backup(); 3463 mTranslator.translateWindowLayout(params); 3464 } 3465 if (params != null) { 3466 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3467 } 3468 mPendingConfiguration.seq = 0; 3469 //Log.d(TAG, ">>>>>> CALLING relayout"); 3470 int relayoutResult = sWindowSession.relayout( 3471 mWindow, params, 3472 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3473 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3474 viewVisibility, insetsPending, mWinFrame, 3475 mPendingContentInsets, mPendingVisibleInsets, 3476 mPendingConfiguration, mSurface); 3477 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3478 if (restore) { 3479 params.restore(); 3480 } 3481 3482 if (mTranslator != null) { 3483 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3484 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3485 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3486 } 3487 return relayoutResult; 3488 } 3489 3490 /** 3491 * {@inheritDoc} 3492 */ 3493 public void playSoundEffect(int effectId) { 3494 checkThread(); 3495 3496 try { 3497 final AudioManager audioManager = getAudioManager(); 3498 3499 switch (effectId) { 3500 case SoundEffectConstants.CLICK: 3501 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3502 return; 3503 case SoundEffectConstants.NAVIGATION_DOWN: 3504 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3505 return; 3506 case SoundEffectConstants.NAVIGATION_LEFT: 3507 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3508 return; 3509 case SoundEffectConstants.NAVIGATION_RIGHT: 3510 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3511 return; 3512 case SoundEffectConstants.NAVIGATION_UP: 3513 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3514 return; 3515 default: 3516 throw new IllegalArgumentException("unknown effect id " + effectId + 3517 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3518 } 3519 } catch (IllegalStateException e) { 3520 // Exception thrown by getAudioManager() when mView is null 3521 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3522 e.printStackTrace(); 3523 } 3524 } 3525 3526 /** 3527 * {@inheritDoc} 3528 */ 3529 public boolean performHapticFeedback(int effectId, boolean always) { 3530 try { 3531 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3532 } catch (RemoteException e) { 3533 return false; 3534 } 3535 } 3536 3537 /** 3538 * {@inheritDoc} 3539 */ 3540 public View focusSearch(View focused, int direction) { 3541 checkThread(); 3542 if (!(mView instanceof ViewGroup)) { 3543 return null; 3544 } 3545 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3546 } 3547 3548 public void debug() { 3549 mView.debug(); 3550 } 3551 3552 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3553 if (mView != null) { 3554 getGfxInfo(mView, info); 3555 } else { 3556 info[0] = info[1] = 0; 3557 } 3558 } 3559 3560 private void getGfxInfo(View view, int[] info) { 3561 DisplayList displayList = view.mDisplayList; 3562 info[0]++; 3563 if (displayList != null) { 3564 info[1] += displayList.getSize(); 3565 } 3566 3567 if (view instanceof ViewGroup) { 3568 ViewGroup group = (ViewGroup) view; 3569 3570 int count = group.getChildCount(); 3571 for (int i = 0; i < count; i++) { 3572 getGfxInfo(group.getChildAt(i), info); 3573 } 3574 } 3575 } 3576 3577 public void die(boolean immediate) { 3578 if (immediate) { 3579 doDie(); 3580 } else { 3581 sendEmptyMessage(DIE); 3582 } 3583 } 3584 3585 void doDie() { 3586 checkThread(); 3587 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3588 synchronized (this) { 3589 if (mAdded) { 3590 mAdded = false; 3591 dispatchDetachedFromWindow(); 3592 } 3593 3594 if (mAdded && !mFirst) { 3595 destroyHardwareRenderer(); 3596 3597 int viewVisibility = mView.getVisibility(); 3598 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3599 if (mWindowAttributesChanged || viewVisibilityChanged) { 3600 // If layout params have been changed, first give them 3601 // to the window manager to make sure it has the correct 3602 // animation info. 3603 try { 3604 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3605 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3606 sWindowSession.finishDrawing(mWindow); 3607 } 3608 } catch (RemoteException e) { 3609 } 3610 } 3611 3612 mSurface.release(); 3613 } 3614 } 3615 } 3616 3617 public void requestUpdateConfiguration(Configuration config) { 3618 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3619 sendMessage(msg); 3620 } 3621 3622 private void destroyHardwareRenderer() { 3623 if (mAttachInfo.mHardwareRenderer != null) { 3624 mAttachInfo.mHardwareRenderer.destroy(true); 3625 mAttachInfo.mHardwareRenderer = null; 3626 mAttachInfo.mHardwareAccelerated = false; 3627 } 3628 } 3629 3630 public void dispatchFinishedEvent(int seq, boolean handled) { 3631 Message msg = obtainMessage(FINISHED_EVENT); 3632 msg.arg1 = seq; 3633 msg.arg2 = handled ? 1 : 0; 3634 sendMessage(msg); 3635 } 3636 3637 public void dispatchResized(int w, int h, Rect coveredInsets, 3638 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3639 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3640 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3641 + " visibleInsets=" + visibleInsets.toShortString() 3642 + " reportDraw=" + reportDraw); 3643 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3644 if (mTranslator != null) { 3645 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3646 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3647 w *= mTranslator.applicationInvertedScale; 3648 h *= mTranslator.applicationInvertedScale; 3649 } 3650 msg.arg1 = w; 3651 msg.arg2 = h; 3652 ResizedInfo ri = new ResizedInfo(); 3653 ri.coveredInsets = new Rect(coveredInsets); 3654 ri.visibleInsets = new Rect(visibleInsets); 3655 ri.newConfig = newConfig; 3656 msg.obj = ri; 3657 sendMessage(msg); 3658 } 3659 3660 private long mInputEventReceiveTimeNanos; 3661 private long mInputEventDeliverTimeNanos; 3662 private long mInputEventDeliverPostImeTimeNanos; 3663 private InputQueue.FinishedCallback mFinishedCallback; 3664 3665 private final InputHandler mInputHandler = new InputHandler() { 3666 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3667 startInputEvent(finishedCallback); 3668 dispatchKey(event, true); 3669 } 3670 3671 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3672 startInputEvent(finishedCallback); 3673 dispatchMotion(event, true); 3674 } 3675 }; 3676 3677 public void dispatchKey(KeyEvent event) { 3678 dispatchKey(event, false); 3679 } 3680 3681 private void dispatchKey(KeyEvent event, boolean sendDone) { 3682 //noinspection ConstantConditions 3683 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3684 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3685 if (DBG) Log.d("keydisp", "==================================================="); 3686 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3687 3688 debug(); 3689 3690 if (DBG) Log.d("keydisp", "==================================================="); 3691 } 3692 } 3693 3694 Message msg = obtainMessage(DISPATCH_KEY); 3695 msg.obj = event; 3696 msg.arg1 = sendDone ? 1 : 0; 3697 3698 if (LOCAL_LOGV) Log.v( 3699 TAG, "sending key " + event + " to " + mView); 3700 3701 sendMessageAtTime(msg, event.getEventTime()); 3702 } 3703 3704 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3705 int source = event.getSource(); 3706 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3707 dispatchPointer(event, sendDone); 3708 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3709 dispatchTrackball(event, sendDone); 3710 } else { 3711 dispatchGenericMotion(event, sendDone); 3712 } 3713 } 3714 3715 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3716 Message msg = obtainMessage(DISPATCH_POINTER); 3717 msg.obj = event; 3718 msg.arg1 = sendDone ? 1 : 0; 3719 sendMessageAtTime(msg, event.getEventTime()); 3720 } 3721 3722 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3723 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3724 msg.obj = event; 3725 msg.arg1 = sendDone ? 1 : 0; 3726 sendMessageAtTime(msg, event.getEventTime()); 3727 } 3728 3729 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3730 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3731 msg.obj = event; 3732 msg.arg1 = sendDone ? 1 : 0; 3733 sendMessageAtTime(msg, event.getEventTime()); 3734 } 3735 3736 public void dispatchAppVisibility(boolean visible) { 3737 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3738 msg.arg1 = visible ? 1 : 0; 3739 sendMessage(msg); 3740 } 3741 3742 public void dispatchGetNewSurface() { 3743 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3744 sendMessage(msg); 3745 } 3746 3747 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3748 Message msg = Message.obtain(); 3749 msg.what = WINDOW_FOCUS_CHANGED; 3750 msg.arg1 = hasFocus ? 1 : 0; 3751 msg.arg2 = inTouchMode ? 1 : 0; 3752 sendMessage(msg); 3753 } 3754 3755 public void dispatchCloseSystemDialogs(String reason) { 3756 Message msg = Message.obtain(); 3757 msg.what = CLOSE_SYSTEM_DIALOGS; 3758 msg.obj = reason; 3759 sendMessage(msg); 3760 } 3761 3762 public void dispatchDragEvent(DragEvent event) { 3763 final int what; 3764 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3765 what = DISPATCH_DRAG_LOCATION_EVENT; 3766 removeMessages(what); 3767 } else { 3768 what = DISPATCH_DRAG_EVENT; 3769 } 3770 Message msg = obtainMessage(what, event); 3771 sendMessage(msg); 3772 } 3773 3774 public void dispatchSystemUiVisibilityChanged(int visibility) { 3775 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3776 } 3777 3778 /** 3779 * The window is getting focus so if there is anything focused/selected 3780 * send an {@link AccessibilityEvent} to announce that. 3781 */ 3782 private void sendAccessibilityEvents() { 3783 if (!mAccessibilityManager.isEnabled()) { 3784 return; 3785 } 3786 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3787 View focusedView = mView.findFocus(); 3788 if (focusedView != null && focusedView != mView) { 3789 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3790 } 3791 } 3792 3793 /** 3794 * Post a callback to send a 3795 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3796 * This event is send at most once every 3797 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3798 */ 3799 private void postSendWindowContentChangedCallback() { 3800 if (mSendWindowContentChangedAccessibilityEvent == null) { 3801 mSendWindowContentChangedAccessibilityEvent = 3802 new SendWindowContentChangedAccessibilityEvent(); 3803 } 3804 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3805 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3806 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3807 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3808 } 3809 } 3810 3811 /** 3812 * Remove a posted callback to send a 3813 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3814 */ 3815 private void removeSendWindowContentChangedCallback() { 3816 if (mSendWindowContentChangedAccessibilityEvent != null) { 3817 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3818 } 3819 } 3820 3821 public boolean showContextMenuForChild(View originalView) { 3822 return false; 3823 } 3824 3825 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3826 return null; 3827 } 3828 3829 public void createContextMenu(ContextMenu menu) { 3830 } 3831 3832 public void childDrawableStateChanged(View child) { 3833 } 3834 3835 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3836 if (mView == null) { 3837 return false; 3838 } 3839 mAccessibilityManager.sendAccessibilityEvent(event); 3840 return true; 3841 } 3842 3843 void checkThread() { 3844 if (mThread != Thread.currentThread()) { 3845 throw new CalledFromWrongThreadException( 3846 "Only the original thread that created a view hierarchy can touch its views."); 3847 } 3848 } 3849 3850 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3851 // ViewAncestor never intercepts touch event, so this can be a no-op 3852 } 3853 3854 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3855 boolean immediate) { 3856 return scrollToRectOrFocus(rectangle, immediate); 3857 } 3858 3859 class TakenSurfaceHolder extends BaseSurfaceHolder { 3860 @Override 3861 public boolean onAllowLockCanvas() { 3862 return mDrawingAllowed; 3863 } 3864 3865 @Override 3866 public void onRelayoutContainer() { 3867 // Not currently interesting -- from changing between fixed and layout size. 3868 } 3869 3870 public void setFormat(int format) { 3871 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3872 } 3873 3874 public void setType(int type) { 3875 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3876 } 3877 3878 @Override 3879 public void onUpdateSurface() { 3880 // We take care of format and type changes on our own. 3881 throw new IllegalStateException("Shouldn't be here"); 3882 } 3883 3884 public boolean isCreating() { 3885 return mIsCreating; 3886 } 3887 3888 @Override 3889 public void setFixedSize(int width, int height) { 3890 throw new UnsupportedOperationException( 3891 "Currently only support sizing from layout"); 3892 } 3893 3894 public void setKeepScreenOn(boolean screenOn) { 3895 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3896 } 3897 } 3898 3899 static class InputMethodCallback extends IInputMethodCallback.Stub { 3900 private WeakReference<ViewRootImpl> mViewAncestor; 3901 3902 public InputMethodCallback(ViewRootImpl viewAncestor) { 3903 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3904 } 3905 3906 public void finishedEvent(int seq, boolean handled) { 3907 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3908 if (viewAncestor != null) { 3909 viewAncestor.dispatchFinishedEvent(seq, handled); 3910 } 3911 } 3912 3913 public void sessionCreated(IInputMethodSession session) { 3914 // Stub -- not for use in the client. 3915 } 3916 } 3917 3918 static class W extends IWindow.Stub { 3919 private final WeakReference<ViewRootImpl> mViewAncestor; 3920 3921 W(ViewRootImpl viewAncestor) { 3922 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3923 } 3924 3925 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3926 boolean reportDraw, Configuration newConfig) { 3927 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3928 if (viewAncestor != null) { 3929 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3930 newConfig); 3931 } 3932 } 3933 3934 public void dispatchAppVisibility(boolean visible) { 3935 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3936 if (viewAncestor != null) { 3937 viewAncestor.dispatchAppVisibility(visible); 3938 } 3939 } 3940 3941 public void dispatchGetNewSurface() { 3942 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3943 if (viewAncestor != null) { 3944 viewAncestor.dispatchGetNewSurface(); 3945 } 3946 } 3947 3948 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3949 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3950 if (viewAncestor != null) { 3951 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3952 } 3953 } 3954 3955 private static int checkCallingPermission(String permission) { 3956 try { 3957 return ActivityManagerNative.getDefault().checkPermission( 3958 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3959 } catch (RemoteException e) { 3960 return PackageManager.PERMISSION_DENIED; 3961 } 3962 } 3963 3964 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3965 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3966 if (viewAncestor != null) { 3967 final View view = viewAncestor.mView; 3968 if (view != null) { 3969 if (checkCallingPermission(Manifest.permission.DUMP) != 3970 PackageManager.PERMISSION_GRANTED) { 3971 throw new SecurityException("Insufficient permissions to invoke" 3972 + " executeCommand() from pid=" + Binder.getCallingPid() 3973 + ", uid=" + Binder.getCallingUid()); 3974 } 3975 3976 OutputStream clientStream = null; 3977 try { 3978 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 3979 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 3980 } catch (IOException e) { 3981 e.printStackTrace(); 3982 } finally { 3983 if (clientStream != null) { 3984 try { 3985 clientStream.close(); 3986 } catch (IOException e) { 3987 e.printStackTrace(); 3988 } 3989 } 3990 } 3991 } 3992 } 3993 } 3994 3995 public void closeSystemDialogs(String reason) { 3996 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3997 if (viewAncestor != null) { 3998 viewAncestor.dispatchCloseSystemDialogs(reason); 3999 } 4000 } 4001 4002 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4003 boolean sync) { 4004 if (sync) { 4005 try { 4006 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4007 } catch (RemoteException e) { 4008 } 4009 } 4010 } 4011 4012 public void dispatchWallpaperCommand(String action, int x, int y, 4013 int z, Bundle extras, boolean sync) { 4014 if (sync) { 4015 try { 4016 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4017 } catch (RemoteException e) { 4018 } 4019 } 4020 } 4021 4022 /* Drag/drop */ 4023 public void dispatchDragEvent(DragEvent event) { 4024 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4025 if (viewAncestor != null) { 4026 viewAncestor.dispatchDragEvent(event); 4027 } 4028 } 4029 4030 public void dispatchSystemUiVisibilityChanged(int visibility) { 4031 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4032 if (viewAncestor != null) { 4033 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4034 } 4035 } 4036 } 4037 4038 /** 4039 * Maintains state information for a single trackball axis, generating 4040 * discrete (DPAD) movements based on raw trackball motion. 4041 */ 4042 static final class TrackballAxis { 4043 /** 4044 * The maximum amount of acceleration we will apply. 4045 */ 4046 static final float MAX_ACCELERATION = 20; 4047 4048 /** 4049 * The maximum amount of time (in milliseconds) between events in order 4050 * for us to consider the user to be doing fast trackball movements, 4051 * and thus apply an acceleration. 4052 */ 4053 static final long FAST_MOVE_TIME = 150; 4054 4055 /** 4056 * Scaling factor to the time (in milliseconds) between events to how 4057 * much to multiple/divide the current acceleration. When movement 4058 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4059 * FAST_MOVE_TIME it divides it. 4060 */ 4061 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4062 4063 float position; 4064 float absPosition; 4065 float acceleration = 1; 4066 long lastMoveTime = 0; 4067 int step; 4068 int dir; 4069 int nonAccelMovement; 4070 4071 void reset(int _step) { 4072 position = 0; 4073 acceleration = 1; 4074 lastMoveTime = 0; 4075 step = _step; 4076 dir = 0; 4077 } 4078 4079 /** 4080 * Add trackball movement into the state. If the direction of movement 4081 * has been reversed, the state is reset before adding the 4082 * movement (so that you don't have to compensate for any previously 4083 * collected movement before see the result of the movement in the 4084 * new direction). 4085 * 4086 * @return Returns the absolute value of the amount of movement 4087 * collected so far. 4088 */ 4089 float collect(float off, long time, String axis) { 4090 long normTime; 4091 if (off > 0) { 4092 normTime = (long)(off * FAST_MOVE_TIME); 4093 if (dir < 0) { 4094 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4095 position = 0; 4096 step = 0; 4097 acceleration = 1; 4098 lastMoveTime = 0; 4099 } 4100 dir = 1; 4101 } else if (off < 0) { 4102 normTime = (long)((-off) * FAST_MOVE_TIME); 4103 if (dir > 0) { 4104 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4105 position = 0; 4106 step = 0; 4107 acceleration = 1; 4108 lastMoveTime = 0; 4109 } 4110 dir = -1; 4111 } else { 4112 normTime = 0; 4113 } 4114 4115 // The number of milliseconds between each movement that is 4116 // considered "normal" and will not result in any acceleration 4117 // or deceleration, scaled by the offset we have here. 4118 if (normTime > 0) { 4119 long delta = time - lastMoveTime; 4120 lastMoveTime = time; 4121 float acc = acceleration; 4122 if (delta < normTime) { 4123 // The user is scrolling rapidly, so increase acceleration. 4124 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4125 if (scale > 1) acc *= scale; 4126 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4127 + off + " normTime=" + normTime + " delta=" + delta 4128 + " scale=" + scale + " acc=" + acc); 4129 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4130 } else { 4131 // The user is scrolling slowly, so decrease acceleration. 4132 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4133 if (scale > 1) acc /= scale; 4134 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4135 + off + " normTime=" + normTime + " delta=" + delta 4136 + " scale=" + scale + " acc=" + acc); 4137 acceleration = acc > 1 ? acc : 1; 4138 } 4139 } 4140 position += off; 4141 return (absPosition = Math.abs(position)); 4142 } 4143 4144 /** 4145 * Generate the number of discrete movement events appropriate for 4146 * the currently collected trackball movement. 4147 * 4148 * @param precision The minimum movement required to generate the 4149 * first discrete movement. 4150 * 4151 * @return Returns the number of discrete movements, either positive 4152 * or negative, or 0 if there is not enough trackball movement yet 4153 * for a discrete movement. 4154 */ 4155 int generate(float precision) { 4156 int movement = 0; 4157 nonAccelMovement = 0; 4158 do { 4159 final int dir = position >= 0 ? 1 : -1; 4160 switch (step) { 4161 // If we are going to execute the first step, then we want 4162 // to do this as soon as possible instead of waiting for 4163 // a full movement, in order to make things look responsive. 4164 case 0: 4165 if (absPosition < precision) { 4166 return movement; 4167 } 4168 movement += dir; 4169 nonAccelMovement += dir; 4170 step = 1; 4171 break; 4172 // If we have generated the first movement, then we need 4173 // to wait for the second complete trackball motion before 4174 // generating the second discrete movement. 4175 case 1: 4176 if (absPosition < 2) { 4177 return movement; 4178 } 4179 movement += dir; 4180 nonAccelMovement += dir; 4181 position += dir > 0 ? -2 : 2; 4182 absPosition = Math.abs(position); 4183 step = 2; 4184 break; 4185 // After the first two, we generate discrete movements 4186 // consistently with the trackball, applying an acceleration 4187 // if the trackball is moving quickly. This is a simple 4188 // acceleration on top of what we already compute based 4189 // on how quickly the wheel is being turned, to apply 4190 // a longer increasing acceleration to continuous movement 4191 // in one direction. 4192 default: 4193 if (absPosition < 1) { 4194 return movement; 4195 } 4196 movement += dir; 4197 position += dir >= 0 ? -1 : 1; 4198 absPosition = Math.abs(position); 4199 float acc = acceleration; 4200 acc *= 1.1f; 4201 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4202 break; 4203 } 4204 } while (true); 4205 } 4206 } 4207 4208 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4209 public CalledFromWrongThreadException(String msg) { 4210 super(msg); 4211 } 4212 } 4213 4214 private SurfaceHolder mHolder = new SurfaceHolder() { 4215 // we only need a SurfaceHolder for opengl. it would be nice 4216 // to implement everything else though, especially the callback 4217 // support (opengl doesn't make use of it right now, but eventually 4218 // will). 4219 public Surface getSurface() { 4220 return mSurface; 4221 } 4222 4223 public boolean isCreating() { 4224 return false; 4225 } 4226 4227 public void addCallback(Callback callback) { 4228 } 4229 4230 public void removeCallback(Callback callback) { 4231 } 4232 4233 public void setFixedSize(int width, int height) { 4234 } 4235 4236 public void setSizeFromLayout() { 4237 } 4238 4239 public void setFormat(int format) { 4240 } 4241 4242 public void setType(int type) { 4243 } 4244 4245 public void setKeepScreenOn(boolean screenOn) { 4246 } 4247 4248 public Canvas lockCanvas() { 4249 return null; 4250 } 4251 4252 public Canvas lockCanvas(Rect dirty) { 4253 return null; 4254 } 4255 4256 public void unlockCanvasAndPost(Canvas canvas) { 4257 } 4258 public Rect getSurfaceFrame() { 4259 return null; 4260 } 4261 }; 4262 4263 static RunQueue getRunQueue() { 4264 RunQueue rq = sRunQueues.get(); 4265 if (rq != null) { 4266 return rq; 4267 } 4268 rq = new RunQueue(); 4269 sRunQueues.set(rq); 4270 return rq; 4271 } 4272 4273 /** 4274 * @hide 4275 */ 4276 static final class RunQueue { 4277 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4278 4279 void post(Runnable action) { 4280 postDelayed(action, 0); 4281 } 4282 4283 void postDelayed(Runnable action, long delayMillis) { 4284 HandlerAction handlerAction = new HandlerAction(); 4285 handlerAction.action = action; 4286 handlerAction.delay = delayMillis; 4287 4288 synchronized (mActions) { 4289 mActions.add(handlerAction); 4290 } 4291 } 4292 4293 void removeCallbacks(Runnable action) { 4294 final HandlerAction handlerAction = new HandlerAction(); 4295 handlerAction.action = action; 4296 4297 synchronized (mActions) { 4298 final ArrayList<HandlerAction> actions = mActions; 4299 4300 while (actions.remove(handlerAction)) { 4301 // Keep going 4302 } 4303 } 4304 } 4305 4306 void executeActions(Handler handler) { 4307 synchronized (mActions) { 4308 final ArrayList<HandlerAction> actions = mActions; 4309 final int count = actions.size(); 4310 4311 for (int i = 0; i < count; i++) { 4312 final HandlerAction handlerAction = actions.get(i); 4313 handler.postDelayed(handlerAction.action, handlerAction.delay); 4314 } 4315 4316 actions.clear(); 4317 } 4318 } 4319 4320 private static class HandlerAction { 4321 Runnable action; 4322 long delay; 4323 4324 @Override 4325 public boolean equals(Object o) { 4326 if (this == o) return true; 4327 if (o == null || getClass() != o.getClass()) return false; 4328 4329 HandlerAction that = (HandlerAction) o; 4330 return !(action != null ? !action.equals(that.action) : that.action != null); 4331 4332 } 4333 4334 @Override 4335 public int hashCode() { 4336 int result = action != null ? action.hashCode() : 0; 4337 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4338 return result; 4339 } 4340 } 4341 } 4342 4343 /** 4344 * Class for managing the accessibility interaction connection 4345 * based on the global accessibility state. 4346 */ 4347 final class AccessibilityInteractionConnectionManager 4348 implements AccessibilityStateChangeListener { 4349 public void onAccessibilityStateChanged(boolean enabled) { 4350 if (enabled) { 4351 ensureConnection(); 4352 } else { 4353 ensureNoConnection(); 4354 } 4355 } 4356 4357 public void ensureConnection() { 4358 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4359 if (!registered) { 4360 mAttachInfo.mAccessibilityWindowId = 4361 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4362 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4363 } 4364 } 4365 4366 public void ensureNoConnection() { 4367 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4368 if (registered) { 4369 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4370 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4371 } 4372 } 4373 } 4374 4375 /** 4376 * This class is an interface this ViewAncestor provides to the 4377 * AccessibilityManagerService to the latter can interact with 4378 * the view hierarchy in this ViewAncestor. 4379 */ 4380 final class AccessibilityInteractionConnection 4381 extends IAccessibilityInteractionConnection.Stub { 4382 private final WeakReference<ViewRootImpl> mViewAncestor; 4383 4384 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4385 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4386 } 4387 4388 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4389 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4390 int interrogatingPid, long interrogatingTid) { 4391 if (mViewAncestor.get() != null) { 4392 getAccessibilityInteractionController() 4393 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4394 interactionId, callback, interrogatingPid, interrogatingTid); 4395 } 4396 } 4397 4398 public void performAccessibilityAction(int accessibilityId, int action, 4399 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4400 int interogatingPid, long interrogatingTid) { 4401 if (mViewAncestor.get() != null) { 4402 getAccessibilityInteractionController() 4403 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4404 callback, interogatingPid, interrogatingTid); 4405 } 4406 } 4407 4408 public void findAccessibilityNodeInfoByViewId(int viewId, 4409 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4410 int interrogatingPid, long interrogatingTid) { 4411 if (mViewAncestor.get() != null) { 4412 getAccessibilityInteractionController() 4413 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4414 interrogatingPid, interrogatingTid); 4415 } 4416 } 4417 4418 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4419 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4420 int interrogatingPid, long interrogatingTid) { 4421 if (mViewAncestor.get() != null) { 4422 getAccessibilityInteractionController() 4423 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4424 interactionId, callback, interrogatingPid, interrogatingTid); 4425 } 4426 } 4427 } 4428 4429 /** 4430 * Class for managing accessibility interactions initiated from the system 4431 * and targeting the view hierarchy. A *ClientThread method is to be 4432 * called from the interaction connection this ViewAncestor gives the 4433 * system to talk to it and a corresponding *UiThread method that is executed 4434 * on the UI thread. 4435 */ 4436 final class AccessibilityInteractionController { 4437 private static final int POOL_SIZE = 5; 4438 4439 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4440 new FindByAccessibilitytIdPredicate(); 4441 4442 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4443 new ArrayList<AccessibilityNodeInfo>(); 4444 4445 // Reusable poolable arguments for interacting with the view hierarchy 4446 // to fit more arguments than Message and to avoid sharing objects between 4447 // two messages since several threads can send messages concurrently. 4448 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4449 new PoolableManager<SomeArgs>() { 4450 public SomeArgs newInstance() { 4451 return new SomeArgs(); 4452 } 4453 4454 public void onAcquired(SomeArgs info) { 4455 /* do nothing */ 4456 } 4457 4458 public void onReleased(SomeArgs info) { 4459 info.clear(); 4460 } 4461 }, POOL_SIZE) 4462 ); 4463 4464 public class SomeArgs implements Poolable<SomeArgs> { 4465 private SomeArgs mNext; 4466 private boolean mIsPooled; 4467 4468 public Object arg1; 4469 public Object arg2; 4470 public int argi1; 4471 public int argi2; 4472 public int argi3; 4473 4474 public SomeArgs getNextPoolable() { 4475 return mNext; 4476 } 4477 4478 public boolean isPooled() { 4479 return mIsPooled; 4480 } 4481 4482 public void setNextPoolable(SomeArgs args) { 4483 mNext = args; 4484 } 4485 4486 public void setPooled(boolean isPooled) { 4487 mIsPooled = isPooled; 4488 } 4489 4490 private void clear() { 4491 arg1 = null; 4492 arg2 = null; 4493 argi1 = 0; 4494 argi2 = 0; 4495 argi3 = 0; 4496 } 4497 } 4498 4499 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4500 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4501 int interrogatingPid, long interrogatingTid) { 4502 Message message = Message.obtain(); 4503 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4504 message.arg1 = accessibilityId; 4505 message.arg2 = interactionId; 4506 message.obj = callback; 4507 // If the interrogation is performed by the same thread as the main UI 4508 // thread in this process, set the message as a static reference so 4509 // after this call completes the same thread but in the interrogating 4510 // client can handle the message to generate the result. 4511 if (interrogatingPid == Process.myPid() 4512 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4513 message.setTarget(ViewRootImpl.this); 4514 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4515 } else { 4516 sendMessage(message); 4517 } 4518 } 4519 4520 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4521 final int accessibilityId = message.arg1; 4522 final int interactionId = message.arg2; 4523 final IAccessibilityInteractionConnectionCallback callback = 4524 (IAccessibilityInteractionConnectionCallback) message.obj; 4525 4526 AccessibilityNodeInfo info = null; 4527 try { 4528 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4529 predicate.init(accessibilityId); 4530 View root = ViewRootImpl.this.mView; 4531 View target = root.findViewByPredicate(predicate); 4532 if (target != null && target.isShown()) { 4533 info = target.createAccessibilityNodeInfo(); 4534 } 4535 } finally { 4536 try { 4537 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4538 } catch (RemoteException re) { 4539 /* ignore - the other side will time out */ 4540 } 4541 } 4542 } 4543 4544 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4545 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4546 long interrogatingTid) { 4547 Message message = Message.obtain(); 4548 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4549 message.arg1 = viewId; 4550 message.arg2 = interactionId; 4551 message.obj = callback; 4552 // If the interrogation is performed by the same thread as the main UI 4553 // thread in this process, set the message as a static reference so 4554 // after this call completes the same thread but in the interrogating 4555 // client can handle the message to generate the result. 4556 if (interrogatingPid == Process.myPid() 4557 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4558 message.setTarget(ViewRootImpl.this); 4559 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4560 } else { 4561 sendMessage(message); 4562 } 4563 } 4564 4565 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4566 final int viewId = message.arg1; 4567 final int interactionId = message.arg2; 4568 final IAccessibilityInteractionConnectionCallback callback = 4569 (IAccessibilityInteractionConnectionCallback) message.obj; 4570 4571 AccessibilityNodeInfo info = null; 4572 try { 4573 View root = ViewRootImpl.this.mView; 4574 View target = root.findViewById(viewId); 4575 if (target != null && target.isShown()) { 4576 info = target.createAccessibilityNodeInfo(); 4577 } 4578 } finally { 4579 try { 4580 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4581 } catch (RemoteException re) { 4582 /* ignore - the other side will time out */ 4583 } 4584 } 4585 } 4586 4587 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4588 int accessibilityViewId, int interactionId, 4589 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4590 long interrogatingTid) { 4591 Message message = Message.obtain(); 4592 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4593 SomeArgs args = mPool.acquire(); 4594 args.arg1 = text; 4595 args.argi1 = accessibilityViewId; 4596 args.argi2 = interactionId; 4597 args.arg2 = callback; 4598 message.obj = args; 4599 // If the interrogation is performed by the same thread as the main UI 4600 // thread in this process, set the message as a static reference so 4601 // after this call completes the same thread but in the interrogating 4602 // client can handle the message to generate the result. 4603 if (interrogatingPid == Process.myPid() 4604 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4605 message.setTarget(ViewRootImpl.this); 4606 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4607 } else { 4608 sendMessage(message); 4609 } 4610 } 4611 4612 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4613 SomeArgs args = (SomeArgs) message.obj; 4614 final String text = (String) args.arg1; 4615 final int accessibilityViewId = args.argi1; 4616 final int interactionId = args.argi2; 4617 final IAccessibilityInteractionConnectionCallback callback = 4618 (IAccessibilityInteractionConnectionCallback) args.arg2; 4619 mPool.release(args); 4620 4621 List<AccessibilityNodeInfo> infos = null; 4622 try { 4623 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4624 foundViews.clear(); 4625 4626 View root; 4627 if (accessibilityViewId != View.NO_ID) { 4628 root = findViewByAccessibilityId(accessibilityViewId); 4629 } else { 4630 root = ViewRootImpl.this.mView; 4631 } 4632 4633 if (root == null || !root.isShown()) { 4634 return; 4635 } 4636 4637 root.findViewsWithText(foundViews, text); 4638 if (foundViews.isEmpty()) { 4639 return; 4640 } 4641 4642 infos = mTempAccessibilityNodeInfoList; 4643 infos.clear(); 4644 4645 final int viewCount = foundViews.size(); 4646 for (int i = 0; i < viewCount; i++) { 4647 View foundView = foundViews.get(i); 4648 if (foundView.isShown()) { 4649 infos.add(foundView.createAccessibilityNodeInfo()); 4650 } 4651 } 4652 } finally { 4653 try { 4654 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4655 } catch (RemoteException re) { 4656 /* ignore - the other side will time out */ 4657 } 4658 } 4659 } 4660 4661 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4662 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4663 int interogatingPid, long interrogatingTid) { 4664 Message message = Message.obtain(); 4665 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4666 SomeArgs args = mPool.acquire(); 4667 args.argi1 = accessibilityId; 4668 args.argi2 = action; 4669 args.argi3 = interactionId; 4670 args.arg1 = callback; 4671 message.obj = args; 4672 // If the interrogation is performed by the same thread as the main UI 4673 // thread in this process, set the message as a static reference so 4674 // after this call completes the same thread but in the interrogating 4675 // client can handle the message to generate the result. 4676 if (interogatingPid == Process.myPid() 4677 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4678 message.setTarget(ViewRootImpl.this); 4679 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4680 } else { 4681 sendMessage(message); 4682 } 4683 } 4684 4685 public void perfromAccessibilityActionUiThread(Message message) { 4686 SomeArgs args = (SomeArgs) message.obj; 4687 final int accessibilityId = args.argi1; 4688 final int action = args.argi2; 4689 final int interactionId = args.argi3; 4690 final IAccessibilityInteractionConnectionCallback callback = 4691 (IAccessibilityInteractionConnectionCallback) args.arg1; 4692 mPool.release(args); 4693 4694 boolean succeeded = false; 4695 try { 4696 switch (action) { 4697 case AccessibilityNodeInfo.ACTION_FOCUS: { 4698 succeeded = performActionFocus(accessibilityId); 4699 } break; 4700 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4701 succeeded = performActionClearFocus(accessibilityId); 4702 } break; 4703 case AccessibilityNodeInfo.ACTION_SELECT: { 4704 succeeded = performActionSelect(accessibilityId); 4705 } break; 4706 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4707 succeeded = performActionClearSelection(accessibilityId); 4708 } break; 4709 } 4710 } finally { 4711 try { 4712 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4713 } catch (RemoteException re) { 4714 /* ignore - the other side will time out */ 4715 } 4716 } 4717 } 4718 4719 private boolean performActionFocus(int accessibilityId) { 4720 View target = findViewByAccessibilityId(accessibilityId); 4721 if (target == null) { 4722 return false; 4723 } 4724 // Get out of touch mode since accessibility wants to move focus around. 4725 ensureTouchMode(false); 4726 return target.requestFocus(); 4727 } 4728 4729 private boolean performActionClearFocus(int accessibilityId) { 4730 View target = findViewByAccessibilityId(accessibilityId); 4731 if (target == null) { 4732 return false; 4733 } 4734 if (!target.isFocused()) { 4735 return false; 4736 } 4737 target.clearFocus(); 4738 return !target.isFocused(); 4739 } 4740 4741 private boolean performActionSelect(int accessibilityId) { 4742 View target = findViewByAccessibilityId(accessibilityId); 4743 if (target == null) { 4744 return false; 4745 } 4746 if (target.isSelected()) { 4747 return false; 4748 } 4749 target.setSelected(true); 4750 return target.isSelected(); 4751 } 4752 4753 private boolean performActionClearSelection(int accessibilityId) { 4754 View target = findViewByAccessibilityId(accessibilityId); 4755 if (target == null) { 4756 return false; 4757 } 4758 if (!target.isSelected()) { 4759 return false; 4760 } 4761 target.setSelected(false); 4762 return !target.isSelected(); 4763 } 4764 4765 private View findViewByAccessibilityId(int accessibilityId) { 4766 View root = ViewRootImpl.this.mView; 4767 if (root == null) { 4768 return null; 4769 } 4770 mFindByAccessibilityIdPredicate.init(accessibilityId); 4771 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4772 return (foundView != null && foundView.isShown()) ? foundView : null; 4773 } 4774 4775 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4776 public int mSerchedId; 4777 4778 public void init(int searchedId) { 4779 mSerchedId = searchedId; 4780 } 4781 4782 public boolean apply(View view) { 4783 return (view.getAccessibilityViewId() == mSerchedId); 4784 } 4785 } 4786 } 4787 4788 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4789 public volatile boolean mIsPending; 4790 4791 public void run() { 4792 if (mView != null) { 4793 // Check again for accessibility state since this is executed delayed. 4794 AccessibilityManager accessibilityManager = 4795 AccessibilityManager.getInstance(mView.mContext); 4796 if (accessibilityManager.isEnabled()) { 4797 // Send the event directly since we do not want to append the 4798 // source text because this is the text for the entire window 4799 // and we just want to notify that the content has changed. 4800 AccessibilityEvent event = AccessibilityEvent.obtain( 4801 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4802 mView.onInitializeAccessibilityEvent(event); 4803 accessibilityManager.sendAccessibilityEvent(event); 4804 } 4805 mIsPending = false; 4806 } 4807 } 4808 } 4809} 4810