ViewRootImpl.java revision ea515aeafa01de6f50c854ee381b972ef2478284
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 final int mTargetSdkVersion; 168 169 View mView; 170 View mFocusedView; 171 View mRealFocusedView; // this is not set to null in touch mode 172 int mViewVisibility; 173 boolean mAppVisible = true; 174 int mOrigWindowType = -1; 175 176 // Set to true if the owner of this window is in the stopped state, 177 // so the window should no longer be active. 178 boolean mStopped = false; 179 180 boolean mLastInCompatMode = false; 181 182 SurfaceHolder.Callback2 mSurfaceHolderCallback; 183 BaseSurfaceHolder mSurfaceHolder; 184 boolean mIsCreating; 185 boolean mDrawingAllowed; 186 187 final Region mTransparentRegion; 188 final Region mPreviousTransparentRegion; 189 190 int mWidth; 191 int mHeight; 192 Rect mDirty; 193 final Rect mCurrentDirty = new Rect(); 194 final Rect mPreviousDirty = new Rect(); 195 boolean mIsAnimating; 196 197 CompatibilityInfo.Translator mTranslator; 198 199 final View.AttachInfo mAttachInfo; 200 InputChannel mInputChannel; 201 InputQueue.Callback mInputQueueCallback; 202 InputQueue mInputQueue; 203 FallbackEventHandler mFallbackEventHandler; 204 205 final Rect mTempRect; // used in the transaction to not thrash the heap. 206 final Rect mVisRect; // used to retrieve visible rect of focused view. 207 208 boolean mTraversalScheduled; 209 long mLastTraversalFinishedTimeNanos; 210 long mLastDrawDurationNanos; 211 boolean mWillDrawSoon; 212 boolean mLayoutRequested; 213 boolean mFirst; 214 boolean mReportNextDraw; 215 boolean mFullRedrawNeeded; 216 boolean mNewSurfaceNeeded; 217 boolean mHasHadWindowFocus; 218 boolean mLastWasImTarget; 219 220 boolean mWindowAttributesChanged = false; 221 int mWindowAttributesChangesFlag = 0; 222 223 // These can be accessed by any thread, must be protected with a lock. 224 // Surface can never be reassigned or cleared (use Surface.clear()). 225 private final Surface mSurface = new Surface(); 226 227 boolean mAdded; 228 boolean mAddedTouchMode; 229 230 CompatibilityInfoHolder mCompatibilityInfo; 231 232 /*package*/ int mAddNesting; 233 234 // These are accessed by multiple threads. 235 final Rect mWinFrame; // frame given by window manager. 236 237 final Rect mPendingVisibleInsets = new Rect(); 238 final Rect mPendingContentInsets = new Rect(); 239 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 240 = new ViewTreeObserver.InternalInsetsInfo(); 241 242 final Configuration mLastConfiguration = new Configuration(); 243 final Configuration mPendingConfiguration = new Configuration(); 244 245 class ResizedInfo { 246 Rect coveredInsets; 247 Rect visibleInsets; 248 Configuration newConfig; 249 } 250 251 boolean mScrollMayChange; 252 int mSoftInputMode; 253 View mLastScrolledFocus; 254 int mScrollY; 255 int mCurScrollY; 256 Scroller mScroller; 257 HardwareLayer mResizeBuffer; 258 long mResizeBufferStartTime; 259 int mResizeBufferDuration; 260 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 261 private ArrayList<LayoutTransition> mPendingTransitions; 262 263 final ViewConfiguration mViewConfiguration; 264 265 /* Drag/drop */ 266 ClipDescription mDragDescription; 267 View mCurrentDragView; 268 volatile Object mLocalDragState; 269 final PointF mDragPoint = new PointF(); 270 final PointF mLastTouchPoint = new PointF(); 271 272 private boolean mProfileRendering; 273 private Thread mRenderProfiler; 274 private volatile boolean mRenderProfilingEnabled; 275 276 /** 277 * see {@link #playSoundEffect(int)} 278 */ 279 AudioManager mAudioManager; 280 281 final AccessibilityManager mAccessibilityManager; 282 283 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 284 285 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 286 287 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 288 289 private final int mDensity; 290 291 /** 292 * Consistency verifier for debugging purposes. 293 */ 294 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 295 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 296 new InputEventConsistencyVerifier(this, 0) : null; 297 298 public static IWindowSession getWindowSession(Looper mainLooper) { 299 synchronized (mStaticInit) { 300 if (!mInitialized) { 301 try { 302 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 303 sWindowSession = Display.getWindowManager().openSession( 304 imm.getClient(), imm.getInputContext()); 305 mInitialized = true; 306 } catch (RemoteException e) { 307 } 308 } 309 return sWindowSession; 310 } 311 } 312 313 public ViewRootImpl(Context context) { 314 super(); 315 316 if (MEASURE_LATENCY) { 317 if (lt == null) { 318 lt = new LatencyTimer(100, 1000); 319 } 320 } 321 322 // Initialize the statics when this class is first instantiated. This is 323 // done here instead of in the static block because Zygote does not 324 // allow the spawning of threads. 325 getWindowSession(context.getMainLooper()); 326 327 mThread = Thread.currentThread(); 328 mLocation = new WindowLeaked(null); 329 mLocation.fillInStackTrace(); 330 mWidth = -1; 331 mHeight = -1; 332 mDirty = new Rect(); 333 mTempRect = new Rect(); 334 mVisRect = new Rect(); 335 mWinFrame = new Rect(); 336 mWindow = new W(this); 337 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 338 mInputMethodCallback = new InputMethodCallback(this); 339 mViewVisibility = View.GONE; 340 mTransparentRegion = new Region(); 341 mPreviousTransparentRegion = new Region(); 342 mFirst = true; // true for the first time the view is added 343 mAdded = false; 344 mAccessibilityManager = AccessibilityManager.getInstance(context); 345 mAccessibilityInteractionConnectionManager = 346 new AccessibilityInteractionConnectionManager(); 347 mAccessibilityManager.addAccessibilityStateChangeListener( 348 mAccessibilityInteractionConnectionManager); 349 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 350 mViewConfiguration = ViewConfiguration.get(context); 351 mDensity = context.getResources().getDisplayMetrics().densityDpi; 352 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 353 mProfileRendering = Boolean.parseBoolean( 354 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 355 } 356 357 public static void addFirstDrawHandler(Runnable callback) { 358 synchronized (sFirstDrawHandlers) { 359 if (!sFirstDrawComplete) { 360 sFirstDrawHandlers.add(callback); 361 } 362 } 363 } 364 365 public static void addConfigCallback(ComponentCallbacks callback) { 366 synchronized (sConfigCallbacks) { 367 sConfigCallbacks.add(callback); 368 } 369 } 370 371 // FIXME for perf testing only 372 private boolean mProfile = false; 373 374 /** 375 * Call this to profile the next traversal call. 376 * FIXME for perf testing only. Remove eventually 377 */ 378 public void profile() { 379 mProfile = true; 380 } 381 382 /** 383 * Indicates whether we are in touch mode. Calling this method triggers an IPC 384 * call and should be avoided whenever possible. 385 * 386 * @return True, if the device is in touch mode, false otherwise. 387 * 388 * @hide 389 */ 390 static boolean isInTouchMode() { 391 if (mInitialized) { 392 try { 393 return sWindowSession.getInTouchMode(); 394 } catch (RemoteException e) { 395 } 396 } 397 return false; 398 } 399 400 /** 401 * We have one child 402 */ 403 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 404 synchronized (this) { 405 if (mView == null) { 406 mView = view; 407 mFallbackEventHandler.setView(view); 408 mWindowAttributes.copyFrom(attrs); 409 attrs = mWindowAttributes; 410 411 if (view instanceof RootViewSurfaceTaker) { 412 mSurfaceHolderCallback = 413 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 414 if (mSurfaceHolderCallback != null) { 415 mSurfaceHolder = new TakenSurfaceHolder(); 416 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 417 } 418 } 419 420 // If the application owns the surface, don't enable hardware acceleration 421 if (mSurfaceHolder == null) { 422 enableHardwareAcceleration(attrs); 423 } 424 425 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 426 mTranslator = compatibilityInfo.getTranslator(); 427 428 if (mTranslator != null) { 429 mSurface.setCompatibilityTranslator(mTranslator); 430 } 431 432 boolean restore = false; 433 if (mTranslator != null) { 434 restore = true; 435 attrs.backup(); 436 mTranslator.translateWindowLayout(attrs); 437 } 438 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 439 440 if (!compatibilityInfo.supportsScreen()) { 441 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 442 mLastInCompatMode = true; 443 } 444 445 mSoftInputMode = attrs.softInputMode; 446 mWindowAttributesChanged = true; 447 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 448 mAttachInfo.mRootView = view; 449 mAttachInfo.mScalingRequired = mTranslator != null; 450 mAttachInfo.mApplicationScale = 451 mTranslator == null ? 1.0f : mTranslator.applicationScale; 452 if (panelParentView != null) { 453 mAttachInfo.mPanelParentWindowToken 454 = panelParentView.getApplicationWindowToken(); 455 } 456 mAdded = true; 457 int res; /* = WindowManagerImpl.ADD_OKAY; */ 458 459 // Schedule the first layout -before- adding to the window 460 // manager, to make sure we do the relayout before receiving 461 // any other events from the system. 462 requestLayout(); 463 if ((mWindowAttributes.inputFeatures 464 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 465 mInputChannel = new InputChannel(); 466 } 467 try { 468 mOrigWindowType = mWindowAttributes.type; 469 res = sWindowSession.add(mWindow, mWindowAttributes, 470 getHostVisibility(), mAttachInfo.mContentInsets, 471 mInputChannel); 472 } catch (RemoteException e) { 473 mAdded = false; 474 mView = null; 475 mAttachInfo.mRootView = null; 476 mInputChannel = null; 477 mFallbackEventHandler.setView(null); 478 unscheduleTraversals(); 479 throw new RuntimeException("Adding window failed", e); 480 } finally { 481 if (restore) { 482 attrs.restore(); 483 } 484 } 485 486 if (mTranslator != null) { 487 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 488 } 489 mPendingContentInsets.set(mAttachInfo.mContentInsets); 490 mPendingVisibleInsets.set(0, 0, 0, 0); 491 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 492 if (res < WindowManagerImpl.ADD_OKAY) { 493 mView = null; 494 mAttachInfo.mRootView = null; 495 mAdded = false; 496 mFallbackEventHandler.setView(null); 497 unscheduleTraversals(); 498 switch (res) { 499 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 500 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 501 throw new WindowManagerImpl.BadTokenException( 502 "Unable to add window -- token " + attrs.token 503 + " is not valid; is your activity running?"); 504 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 505 throw new WindowManagerImpl.BadTokenException( 506 "Unable to add window -- token " + attrs.token 507 + " is not for an application"); 508 case WindowManagerImpl.ADD_APP_EXITING: 509 throw new WindowManagerImpl.BadTokenException( 510 "Unable to add window -- app for token " + attrs.token 511 + " is exiting"); 512 case WindowManagerImpl.ADD_DUPLICATE_ADD: 513 throw new WindowManagerImpl.BadTokenException( 514 "Unable to add window -- window " + mWindow 515 + " has already been added"); 516 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 517 // Silently ignore -- we would have just removed it 518 // right away, anyway. 519 return; 520 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 521 throw new WindowManagerImpl.BadTokenException( 522 "Unable to add window " + mWindow + 523 " -- another window of this type already exists"); 524 case WindowManagerImpl.ADD_PERMISSION_DENIED: 525 throw new WindowManagerImpl.BadTokenException( 526 "Unable to add window " + mWindow + 527 " -- permission denied for this window type"); 528 } 529 throw new RuntimeException( 530 "Unable to add window -- unknown error code " + res); 531 } 532 533 if (view instanceof RootViewSurfaceTaker) { 534 mInputQueueCallback = 535 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 536 } 537 if (mInputChannel != null) { 538 if (mInputQueueCallback != null) { 539 mInputQueue = new InputQueue(mInputChannel); 540 mInputQueueCallback.onInputQueueCreated(mInputQueue); 541 } else { 542 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 543 Looper.myQueue()); 544 } 545 } 546 547 view.assignParent(this); 548 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 549 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 550 551 if (mAccessibilityManager.isEnabled()) { 552 mAccessibilityInteractionConnectionManager.ensureConnection(); 553 } 554 } 555 } 556 } 557 558 private void destroyHardwareResources() { 559 if (mAttachInfo.mHardwareRenderer != null) { 560 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 561 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 562 } 563 mAttachInfo.mHardwareRenderer.destroy(false); 564 } 565 } 566 567 void destroyHardwareLayers() { 568 if (mThread != Thread.currentThread()) { 569 if (mAttachInfo.mHardwareRenderer != null && 570 mAttachInfo.mHardwareRenderer.isEnabled()) { 571 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 572 } 573 } else { 574 if (mAttachInfo.mHardwareRenderer != null && 575 mAttachInfo.mHardwareRenderer.isEnabled()) { 576 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 577 } 578 } 579 } 580 581 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 582 mAttachInfo.mHardwareAccelerated = false; 583 mAttachInfo.mHardwareAccelerationRequested = false; 584 585 // Try to enable hardware acceleration if requested 586 final boolean hardwareAccelerated = 587 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 588 589 if (hardwareAccelerated) { 590 if (!HardwareRenderer.isAvailable()) { 591 return; 592 } 593 594 // Persistent processes (including the system) should not do 595 // accelerated rendering on low-end devices. In that case, 596 // sRendererDisabled will be set. In addition, the system process 597 // itself should never do accelerated rendering. In that case, both 598 // sRendererDisabled and sSystemRendererDisabled are set. When 599 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 600 // can be used by code on the system process to escape that and enable 601 // HW accelerated drawing. (This is basically for the lock screen.) 602 603 final boolean fakeHwAccelerated = (attrs.privateFlags & 604 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 605 final boolean forceHwAccelerated = (attrs.privateFlags & 606 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 607 608 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 609 && forceHwAccelerated)) { 610 // Don't enable hardware acceleration when we're not on the main thread 611 if (!HardwareRenderer.sSystemRendererDisabled 612 && Looper.getMainLooper() != Looper.myLooper()) { 613 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 614 + "acceleration outside of the main thread, aborting"); 615 return; 616 } 617 618 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 619 if (mAttachInfo.mHardwareRenderer != null) { 620 mAttachInfo.mHardwareRenderer.destroy(true); 621 } 622 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 623 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 624 = mAttachInfo.mHardwareRenderer != null; 625 } else if (fakeHwAccelerated) { 626 // The window had wanted to use hardware acceleration, but this 627 // is not allowed in its process. By setting this flag, it can 628 // still render as if it was accelerated. This is basically for 629 // the preview windows the window manager shows for launching 630 // applications, so they will look more like the app being launched. 631 mAttachInfo.mHardwareAccelerationRequested = true; 632 } 633 } 634 } 635 636 public View getView() { 637 return mView; 638 } 639 640 final WindowLeaked getLocation() { 641 return mLocation; 642 } 643 644 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 645 synchronized (this) { 646 int oldSoftInputMode = mWindowAttributes.softInputMode; 647 // preserve compatible window flag if exists. 648 int compatibleWindowFlag = 649 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 650 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 651 mWindowAttributes.flags |= compatibleWindowFlag; 652 653 if (newView) { 654 mSoftInputMode = attrs.softInputMode; 655 requestLayout(); 656 } 657 // Don't lose the mode we last auto-computed. 658 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 659 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 660 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 661 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 662 | (oldSoftInputMode 663 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 664 } 665 mWindowAttributesChanged = true; 666 scheduleTraversals(); 667 } 668 } 669 670 void handleAppVisibility(boolean visible) { 671 if (mAppVisible != visible) { 672 mAppVisible = visible; 673 scheduleTraversals(); 674 } 675 } 676 677 void handleGetNewSurface() { 678 mNewSurfaceNeeded = true; 679 mFullRedrawNeeded = true; 680 scheduleTraversals(); 681 } 682 683 /** 684 * {@inheritDoc} 685 */ 686 public void requestLayout() { 687 checkThread(); 688 mLayoutRequested = true; 689 scheduleTraversals(); 690 } 691 692 /** 693 * {@inheritDoc} 694 */ 695 public boolean isLayoutRequested() { 696 return mLayoutRequested; 697 } 698 699 public void invalidateChild(View child, Rect dirty) { 700 checkThread(); 701 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 702 if (dirty == null) { 703 // Fast invalidation for GL-enabled applications; GL must redraw everything 704 invalidate(); 705 return; 706 } 707 if (mCurScrollY != 0 || mTranslator != null) { 708 mTempRect.set(dirty); 709 dirty = mTempRect; 710 if (mCurScrollY != 0) { 711 dirty.offset(0, -mCurScrollY); 712 } 713 if (mTranslator != null) { 714 mTranslator.translateRectInAppWindowToScreen(dirty); 715 } 716 if (mAttachInfo.mScalingRequired) { 717 dirty.inset(-1, -1); 718 } 719 } 720 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 721 mAttachInfo.mSetIgnoreDirtyState = true; 722 mAttachInfo.mIgnoreDirtyState = true; 723 } 724 mDirty.union(dirty); 725 if (!mWillDrawSoon) { 726 scheduleTraversals(); 727 } 728 } 729 730 void invalidate() { 731 mDirty.set(0, 0, mWidth, mHeight); 732 scheduleTraversals(); 733 } 734 735 void setStopped(boolean stopped) { 736 if (mStopped != stopped) { 737 mStopped = stopped; 738 if (!stopped) { 739 scheduleTraversals(); 740 } 741 } 742 } 743 744 public ViewParent getParent() { 745 return null; 746 } 747 748 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 749 invalidateChild(null, dirty); 750 return null; 751 } 752 753 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 754 if (child != mView) { 755 throw new RuntimeException("child is not mine, honest!"); 756 } 757 // Note: don't apply scroll offset, because we want to know its 758 // visibility in the virtual canvas being given to the view hierarchy. 759 return r.intersect(0, 0, mWidth, mHeight); 760 } 761 762 public void bringChildToFront(View child) { 763 } 764 765 public void scheduleTraversals() { 766 if (!mTraversalScheduled) { 767 mTraversalScheduled = true; 768 769 //noinspection ConstantConditions 770 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 771 final long now = System.nanoTime(); 772 Log.d(TAG, "Latency: Scheduled traversal, it has been " 773 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 774 + "ms since the last traversal finished."); 775 } 776 777 sendEmptyMessage(DO_TRAVERSAL); 778 } 779 } 780 781 public void unscheduleTraversals() { 782 if (mTraversalScheduled) { 783 mTraversalScheduled = false; 784 removeMessages(DO_TRAVERSAL); 785 } 786 } 787 788 int getHostVisibility() { 789 return mAppVisible ? mView.getVisibility() : View.GONE; 790 } 791 792 void disposeResizeBuffer() { 793 if (mResizeBuffer != null) { 794 mResizeBuffer.destroy(); 795 mResizeBuffer = null; 796 } 797 } 798 799 /** 800 * Add LayoutTransition to the list of transitions to be started in the next traversal. 801 * This list will be cleared after the transitions on the list are start()'ed. These 802 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 803 * happens during the layout phase of traversal, which we want to complete before any of the 804 * animations are started (because those animations may side-effect properties that layout 805 * depends upon, like the bounding rectangles of the affected views). So we add the transition 806 * to the list and it is started just prior to starting the drawing phase of traversal. 807 * 808 * @param transition The LayoutTransition to be started on the next traversal. 809 * 810 * @hide 811 */ 812 public void requestTransitionStart(LayoutTransition transition) { 813 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 814 if (mPendingTransitions == null) { 815 mPendingTransitions = new ArrayList<LayoutTransition>(); 816 } 817 mPendingTransitions.add(transition); 818 } 819 } 820 821 private void performTraversals() { 822 // cache mView since it is used so much below... 823 final View host = mView; 824 825 if (DBG) { 826 System.out.println("======================================"); 827 System.out.println("performTraversals"); 828 host.debug(); 829 } 830 831 if (host == null || !mAdded) 832 return; 833 834 mTraversalScheduled = false; 835 mWillDrawSoon = true; 836 boolean windowSizeMayChange = false; 837 boolean fullRedrawNeeded = mFullRedrawNeeded; 838 boolean newSurface = false; 839 boolean surfaceChanged = false; 840 WindowManager.LayoutParams lp = mWindowAttributes; 841 842 int desiredWindowWidth; 843 int desiredWindowHeight; 844 int childWidthMeasureSpec; 845 int childHeightMeasureSpec; 846 847 final View.AttachInfo attachInfo = mAttachInfo; 848 849 final int viewVisibility = getHostVisibility(); 850 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 851 || mNewSurfaceNeeded; 852 853 WindowManager.LayoutParams params = null; 854 int windowAttributesChanges = 0; 855 if (mWindowAttributesChanged) { 856 mWindowAttributesChanged = false; 857 surfaceChanged = true; 858 params = lp; 859 windowAttributesChanges = mWindowAttributesChangesFlag; 860 } 861 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 862 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 863 params = lp; 864 windowAttributesChanges |= WindowManager.LayoutParams.BUFFER_CHANGED; 865 fullRedrawNeeded = true; 866 mLayoutRequested = true; 867 if (mLastInCompatMode) { 868 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 869 mLastInCompatMode = false; 870 } else { 871 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 872 mLastInCompatMode = true; 873 } 874 } 875 876 mWindowAttributesChangesFlag = 0; 877 878 Rect frame = mWinFrame; 879 if (mFirst) { 880 fullRedrawNeeded = true; 881 mLayoutRequested = true; 882 883 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 884 // NOTE -- system code, won't try to do compat mode. 885 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 886 Point size = new Point(); 887 disp.getRealSize(size); 888 desiredWindowWidth = size.x; 889 desiredWindowHeight = size.y; 890 } else { 891 DisplayMetrics packageMetrics = 892 mView.getContext().getResources().getDisplayMetrics(); 893 desiredWindowWidth = packageMetrics.widthPixels; 894 desiredWindowHeight = packageMetrics.heightPixels; 895 } 896 897 // For the very first time, tell the view hierarchy that it 898 // is attached to the window. Note that at this point the surface 899 // object is not initialized to its backing store, but soon it 900 // will be (assuming the window is visible). 901 attachInfo.mSurface = mSurface; 902 // We used to use the following condition to choose 32 bits drawing caches: 903 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 904 // However, windows are now always 32 bits by default, so choose 32 bits 905 attachInfo.mUse32BitDrawingCache = true; 906 attachInfo.mHasWindowFocus = false; 907 attachInfo.mWindowVisibility = viewVisibility; 908 attachInfo.mRecomputeGlobalAttributes = false; 909 attachInfo.mKeepScreenOn = false; 910 attachInfo.mSystemUiVisibility = 0; 911 viewVisibilityChanged = false; 912 mLastConfiguration.setTo(host.getResources().getConfiguration()); 913 host.dispatchAttachedToWindow(attachInfo, 0); 914 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 915 916 host.fitSystemWindows(mAttachInfo.mContentInsets); 917 918 } else { 919 desiredWindowWidth = frame.width(); 920 desiredWindowHeight = frame.height(); 921 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 922 if (DEBUG_ORIENTATION) Log.v(TAG, 923 "View " + host + " resized to: " + frame); 924 fullRedrawNeeded = true; 925 mLayoutRequested = true; 926 windowSizeMayChange = true; 927 } 928 } 929 930 if (viewVisibilityChanged) { 931 attachInfo.mWindowVisibility = viewVisibility; 932 host.dispatchWindowVisibilityChanged(viewVisibility); 933 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 934 destroyHardwareResources(); 935 } 936 if (viewVisibility == View.GONE) { 937 // After making a window gone, we will count it as being 938 // shown for the first time the next time it gets focus. 939 mHasHadWindowFocus = false; 940 } 941 } 942 943 boolean insetsChanged = false; 944 945 if (mLayoutRequested && !mStopped) { 946 // Execute enqueued actions on every layout in case a view that was detached 947 // enqueued an action after being detached 948 getRunQueue().executeActions(attachInfo.mHandler); 949 950 final Resources res = mView.getContext().getResources(); 951 952 if (mFirst) { 953 // make sure touch mode code executes by setting cached value 954 // to opposite of the added touch mode. 955 mAttachInfo.mInTouchMode = !mAddedTouchMode; 956 ensureTouchModeLocally(mAddedTouchMode); 957 } else { 958 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 959 insetsChanged = true; 960 } 961 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 962 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 963 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 964 + mAttachInfo.mVisibleInsets); 965 } 966 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 967 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 968 windowSizeMayChange = true; 969 970 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 971 // NOTE -- system code, won't try to do compat mode. 972 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 973 Point size = new Point(); 974 disp.getRealSize(size); 975 desiredWindowWidth = size.x; 976 desiredWindowHeight = size.y; 977 } else { 978 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 979 desiredWindowWidth = packageMetrics.widthPixels; 980 desiredWindowHeight = packageMetrics.heightPixels; 981 } 982 } 983 } 984 985 // Ask host how big it wants to be 986 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 987 "Measuring " + host + " in display " + desiredWindowWidth 988 + "x" + desiredWindowHeight + "..."); 989 990 boolean goodMeasure = false; 991 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 992 // On large screens, we don't want to allow dialogs to just 993 // stretch to fill the entire width of the screen to display 994 // one line of text. First try doing the layout at a smaller 995 // size to see if it will fit. 996 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 997 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 998 int baseSize = 0; 999 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1000 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1001 } 1002 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1003 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1004 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1005 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1006 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1007 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1008 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1009 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1010 goodMeasure = true; 1011 } else { 1012 // Didn't fit in that size... try expanding a bit. 1013 baseSize = (baseSize+desiredWindowWidth)/2; 1014 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1015 + baseSize); 1016 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1017 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1018 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1019 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1020 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1021 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1022 goodMeasure = true; 1023 } 1024 } 1025 } 1026 } 1027 1028 if (!goodMeasure) { 1029 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1030 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1031 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1032 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1033 windowSizeMayChange = true; 1034 } 1035 } 1036 1037 if (DBG) { 1038 System.out.println("======================================"); 1039 System.out.println("performTraversals -- after measure"); 1040 host.debug(); 1041 } 1042 } 1043 1044 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1045 //Log.i(TAG, "Computing view hierarchy attributes!"); 1046 attachInfo.mRecomputeGlobalAttributes = false; 1047 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1048 int oldVis = attachInfo.mSystemUiVisibility; 1049 attachInfo.mKeepScreenOn = false; 1050 attachInfo.mSystemUiVisibility = 0; 1051 attachInfo.mHasSystemUiListeners = false; 1052 host.dispatchCollectViewAttributes(0); 1053 if (attachInfo.mKeepScreenOn != oldScreenOn 1054 || attachInfo.mSystemUiVisibility != oldVis 1055 || attachInfo.mHasSystemUiListeners) { 1056 params = lp; 1057 windowAttributesChanges |= WindowManager.LayoutParams.BUFFER_CHANGED; 1058 } 1059 } 1060 1061 if (mFirst || attachInfo.mViewVisibilityChanged) { 1062 attachInfo.mViewVisibilityChanged = false; 1063 int resizeMode = mSoftInputMode & 1064 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1065 // If we are in auto resize mode, then we need to determine 1066 // what mode to use now. 1067 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1068 final int N = attachInfo.mScrollContainers.size(); 1069 for (int i=0; i<N; i++) { 1070 if (attachInfo.mScrollContainers.get(i).isShown()) { 1071 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1072 } 1073 } 1074 if (resizeMode == 0) { 1075 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1076 } 1077 if ((lp.softInputMode & 1078 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1079 lp.softInputMode = (lp.softInputMode & 1080 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1081 resizeMode; 1082 params = lp; 1083 windowAttributesChanges |= WindowManager.LayoutParams.BUFFER_CHANGED; 1084 } 1085 } 1086 } 1087 1088 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1089 if (!PixelFormat.formatHasAlpha(params.format)) { 1090 params.format = PixelFormat.TRANSLUCENT; 1091 } 1092 } 1093 1094 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1095 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1096 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1097 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1098 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1099 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1100 1101 final boolean computesInternalInsets = 1102 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1103 1104 boolean insetsPending = false; 1105 int relayoutResult = 0; 1106 1107 if (mFirst || windowShouldResize || insetsChanged || 1108 viewVisibilityChanged || params != null) { 1109 1110 if (viewVisibility == View.VISIBLE) { 1111 // If this window is giving internal insets to the window 1112 // manager, and it is being added or changing its visibility, 1113 // then we want to first give the window manager "fake" 1114 // insets to cause it to effectively ignore the content of 1115 // the window during layout. This avoids it briefly causing 1116 // other windows to resize/move based on the raw frame of the 1117 // window, waiting until we can finish laying out this window 1118 // and get back to the window manager with the ultimately 1119 // computed insets. 1120 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1121 } 1122 1123 if (mSurfaceHolder != null) { 1124 mSurfaceHolder.mSurfaceLock.lock(); 1125 mDrawingAllowed = true; 1126 } 1127 1128 boolean hwInitialized = false; 1129 boolean contentInsetsChanged = false; 1130 boolean visibleInsetsChanged; 1131 boolean hadSurface = mSurface.isValid(); 1132 1133 try { 1134 int fl = 0; 1135 if (params != null) { 1136 fl = params.flags; 1137 if (attachInfo.mKeepScreenOn) { 1138 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1139 } 1140 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1141 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners 1142 || params.subtreeSystemUiVisibility != 0 1143 || params.systemUiVisibility != 0; 1144 } 1145 if (DEBUG_LAYOUT) { 1146 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1147 host.getMeasuredHeight() + ", params=" + params); 1148 } 1149 1150 final int surfaceGenerationId = mSurface.getGenerationId(); 1151 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1152 1153 if (params != null) { 1154 params.flags = fl; 1155 } 1156 1157 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1158 + " content=" + mPendingContentInsets.toShortString() 1159 + " visible=" + mPendingVisibleInsets.toShortString() 1160 + " surface=" + mSurface); 1161 1162 if (mPendingConfiguration.seq != 0) { 1163 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1164 + mPendingConfiguration); 1165 updateConfiguration(mPendingConfiguration, !mFirst); 1166 mPendingConfiguration.seq = 0; 1167 } 1168 1169 contentInsetsChanged = !mPendingContentInsets.equals( 1170 mAttachInfo.mContentInsets); 1171 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1172 mAttachInfo.mVisibleInsets); 1173 if (contentInsetsChanged) { 1174 if (mWidth > 0 && mHeight > 0 && 1175 mSurface != null && mSurface.isValid() && 1176 !mAttachInfo.mTurnOffWindowResizeAnim && 1177 mAttachInfo.mHardwareRenderer != null && 1178 mAttachInfo.mHardwareRenderer.isEnabled() && 1179 mAttachInfo.mHardwareRenderer.validate() && 1180 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1181 1182 disposeResizeBuffer(); 1183 1184 boolean completed = false; 1185 HardwareCanvas canvas = null; 1186 try { 1187 if (mResizeBuffer == null) { 1188 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1189 mWidth, mHeight, false); 1190 } else if (mResizeBuffer.getWidth() != mWidth || 1191 mResizeBuffer.getHeight() != mHeight) { 1192 mResizeBuffer.resize(mWidth, mHeight); 1193 } 1194 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1195 canvas.setViewport(mWidth, mHeight); 1196 canvas.onPreDraw(null); 1197 final int restoreCount = canvas.save(); 1198 1199 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1200 1201 int yoff; 1202 final boolean scrolling = mScroller != null 1203 && mScroller.computeScrollOffset(); 1204 if (scrolling) { 1205 yoff = mScroller.getCurrY(); 1206 mScroller.abortAnimation(); 1207 } else { 1208 yoff = mScrollY; 1209 } 1210 1211 canvas.translate(0, -yoff); 1212 if (mTranslator != null) { 1213 mTranslator.translateCanvas(canvas); 1214 } 1215 1216 mView.draw(canvas); 1217 1218 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1219 mResizeBufferDuration = mView.getResources().getInteger( 1220 com.android.internal.R.integer.config_mediumAnimTime); 1221 completed = true; 1222 1223 canvas.restoreToCount(restoreCount); 1224 } catch (OutOfMemoryError e) { 1225 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1226 } finally { 1227 if (canvas != null) { 1228 canvas.onPostDraw(); 1229 } 1230 if (mResizeBuffer != null) { 1231 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1232 if (!completed) { 1233 mResizeBuffer.destroy(); 1234 mResizeBuffer = null; 1235 } 1236 } 1237 } 1238 } 1239 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1240 host.fitSystemWindows(mAttachInfo.mContentInsets); 1241 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1242 + mAttachInfo.mContentInsets); 1243 } 1244 if (visibleInsetsChanged) { 1245 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1246 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1247 + mAttachInfo.mVisibleInsets); 1248 } 1249 1250 if (!hadSurface) { 1251 if (mSurface.isValid()) { 1252 // If we are creating a new surface, then we need to 1253 // completely redraw it. Also, when we get to the 1254 // point of drawing it we will hold off and schedule 1255 // a new traversal instead. This is so we can tell the 1256 // window manager about all of the windows being displayed 1257 // before actually drawing them, so it can display then 1258 // all at once. 1259 newSurface = true; 1260 fullRedrawNeeded = true; 1261 mPreviousTransparentRegion.setEmpty(); 1262 1263 if (mAttachInfo.mHardwareRenderer != null) { 1264 try { 1265 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1266 } catch (Surface.OutOfResourcesException e) { 1267 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1268 try { 1269 if (!sWindowSession.outOfMemory(mWindow)) { 1270 Slog.w(TAG, "No processes killed for memory; killing self"); 1271 Process.killProcess(Process.myPid()); 1272 } 1273 } catch (RemoteException ex) { 1274 } 1275 mLayoutRequested = true; // ask wm for a new surface next time. 1276 return; 1277 } 1278 } 1279 } 1280 } else if (!mSurface.isValid()) { 1281 // If the surface has been removed, then reset the scroll 1282 // positions. 1283 mLastScrolledFocus = null; 1284 mScrollY = mCurScrollY = 0; 1285 if (mScroller != null) { 1286 mScroller.abortAnimation(); 1287 } 1288 disposeResizeBuffer(); 1289 // Our surface is gone 1290 if (mAttachInfo.mHardwareRenderer != null && 1291 mAttachInfo.mHardwareRenderer.isEnabled()) { 1292 mAttachInfo.mHardwareRenderer.destroy(true); 1293 } 1294 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1295 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1296 fullRedrawNeeded = true; 1297 try { 1298 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1299 } catch (Surface.OutOfResourcesException e) { 1300 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1301 try { 1302 if (!sWindowSession.outOfMemory(mWindow)) { 1303 Slog.w(TAG, "No processes killed for memory; killing self"); 1304 Process.killProcess(Process.myPid()); 1305 } 1306 } catch (RemoteException ex) { 1307 } 1308 mLayoutRequested = true; // ask wm for a new surface next time. 1309 return; 1310 } 1311 } 1312 } catch (RemoteException e) { 1313 } 1314 1315 if (DEBUG_ORIENTATION) Log.v( 1316 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1317 1318 attachInfo.mWindowLeft = frame.left; 1319 attachInfo.mWindowTop = frame.top; 1320 1321 // !!FIXME!! This next section handles the case where we did not get the 1322 // window size we asked for. We should avoid this by getting a maximum size from 1323 // the window session beforehand. 1324 mWidth = frame.width(); 1325 mHeight = frame.height(); 1326 1327 if (mSurfaceHolder != null) { 1328 // The app owns the surface; tell it about what is going on. 1329 if (mSurface.isValid()) { 1330 // XXX .copyFrom() doesn't work! 1331 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1332 mSurfaceHolder.mSurface = mSurface; 1333 } 1334 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1335 mSurfaceHolder.mSurfaceLock.unlock(); 1336 if (mSurface.isValid()) { 1337 if (!hadSurface) { 1338 mSurfaceHolder.ungetCallbacks(); 1339 1340 mIsCreating = true; 1341 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1342 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1343 if (callbacks != null) { 1344 for (SurfaceHolder.Callback c : callbacks) { 1345 c.surfaceCreated(mSurfaceHolder); 1346 } 1347 } 1348 surfaceChanged = true; 1349 } 1350 if (surfaceChanged) { 1351 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1352 lp.format, mWidth, mHeight); 1353 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1354 if (callbacks != null) { 1355 for (SurfaceHolder.Callback c : callbacks) { 1356 c.surfaceChanged(mSurfaceHolder, lp.format, 1357 mWidth, mHeight); 1358 } 1359 } 1360 } 1361 mIsCreating = false; 1362 } else if (hadSurface) { 1363 mSurfaceHolder.ungetCallbacks(); 1364 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1365 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1366 if (callbacks != null) { 1367 for (SurfaceHolder.Callback c : callbacks) { 1368 c.surfaceDestroyed(mSurfaceHolder); 1369 } 1370 } 1371 mSurfaceHolder.mSurfaceLock.lock(); 1372 try { 1373 mSurfaceHolder.mSurface = new Surface(); 1374 } finally { 1375 mSurfaceHolder.mSurfaceLock.unlock(); 1376 } 1377 } 1378 } 1379 1380 if (hwInitialized || ((windowShouldResize || (params != null && 1381 (windowAttributesChanges & WindowManager.LayoutParams.BUFFER_CHANGED) != 0)) && 1382 mAttachInfo.mHardwareRenderer != null && 1383 mAttachInfo.mHardwareRenderer.isEnabled())) { 1384 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1385 if (!hwInitialized && mAttachInfo.mHardwareRenderer.isEnabled()) { 1386 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1387 } 1388 } 1389 1390 if (!mStopped) { 1391 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1392 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1393 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1394 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1395 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1396 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1397 1398 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1399 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1400 + " mHeight=" + mHeight 1401 + " measuredHeight=" + host.getMeasuredHeight() 1402 + " coveredInsetsChanged=" + contentInsetsChanged); 1403 1404 // Ask host how big it wants to be 1405 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1406 1407 // Implementation of weights from WindowManager.LayoutParams 1408 // We just grow the dimensions as needed and re-measure if 1409 // needs be 1410 int width = host.getMeasuredWidth(); 1411 int height = host.getMeasuredHeight(); 1412 boolean measureAgain = false; 1413 1414 if (lp.horizontalWeight > 0.0f) { 1415 width += (int) ((mWidth - width) * lp.horizontalWeight); 1416 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1417 MeasureSpec.EXACTLY); 1418 measureAgain = true; 1419 } 1420 if (lp.verticalWeight > 0.0f) { 1421 height += (int) ((mHeight - height) * lp.verticalWeight); 1422 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1423 MeasureSpec.EXACTLY); 1424 measureAgain = true; 1425 } 1426 1427 if (measureAgain) { 1428 if (DEBUG_LAYOUT) Log.v(TAG, 1429 "And hey let's measure once more: width=" + width 1430 + " height=" + height); 1431 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1432 } 1433 1434 mLayoutRequested = true; 1435 } 1436 } 1437 } 1438 1439 final boolean didLayout = mLayoutRequested && !mStopped; 1440 boolean triggerGlobalLayoutListener = didLayout 1441 || attachInfo.mRecomputeGlobalAttributes; 1442 if (didLayout) { 1443 mLayoutRequested = false; 1444 mScrollMayChange = true; 1445 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1446 TAG, "Laying out " + host + " to (" + 1447 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1448 long startTime = 0L; 1449 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1450 startTime = SystemClock.elapsedRealtime(); 1451 } 1452 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1453 1454 if (false && ViewDebug.consistencyCheckEnabled) { 1455 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1456 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1457 + "please refer to the logs with the tag " 1458 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1459 } 1460 } 1461 1462 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1463 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1464 } 1465 1466 // By this point all views have been sized and positionned 1467 // We can compute the transparent area 1468 1469 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1470 // start out transparent 1471 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1472 host.getLocationInWindow(mTmpLocation); 1473 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1474 mTmpLocation[0] + host.mRight - host.mLeft, 1475 mTmpLocation[1] + host.mBottom - host.mTop); 1476 1477 host.gatherTransparentRegion(mTransparentRegion); 1478 if (mTranslator != null) { 1479 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1480 } 1481 1482 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1483 mPreviousTransparentRegion.set(mTransparentRegion); 1484 // reconfigure window manager 1485 try { 1486 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1487 } catch (RemoteException e) { 1488 } 1489 } 1490 } 1491 1492 if (DBG) { 1493 System.out.println("======================================"); 1494 System.out.println("performTraversals -- after setFrame"); 1495 host.debug(); 1496 } 1497 } 1498 1499 if (triggerGlobalLayoutListener) { 1500 attachInfo.mRecomputeGlobalAttributes = false; 1501 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1502 1503 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1504 postSendWindowContentChangedCallback(); 1505 } 1506 } 1507 1508 if (computesInternalInsets) { 1509 // Clear the original insets. 1510 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1511 insets.reset(); 1512 1513 // Compute new insets in place. 1514 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1515 1516 // Tell the window manager. 1517 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1518 mLastGivenInsets.set(insets); 1519 1520 // Translate insets to screen coordinates if needed. 1521 final Rect contentInsets; 1522 final Rect visibleInsets; 1523 final Region touchableRegion; 1524 if (mTranslator != null) { 1525 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1526 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1527 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1528 } else { 1529 contentInsets = insets.contentInsets; 1530 visibleInsets = insets.visibleInsets; 1531 touchableRegion = insets.touchableRegion; 1532 } 1533 1534 try { 1535 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1536 contentInsets, visibleInsets, touchableRegion); 1537 } catch (RemoteException e) { 1538 } 1539 } 1540 } 1541 1542 if (mFirst) { 1543 // handle first focus request 1544 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1545 + mView.hasFocus()); 1546 if (mView != null) { 1547 if (!mView.hasFocus()) { 1548 mView.requestFocus(View.FOCUS_FORWARD); 1549 mFocusedView = mRealFocusedView = mView.findFocus(); 1550 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1551 + mFocusedView); 1552 } else { 1553 mRealFocusedView = mView.findFocus(); 1554 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1555 + mRealFocusedView); 1556 } 1557 } 1558 } 1559 1560 mFirst = false; 1561 mWillDrawSoon = false; 1562 mNewSurfaceNeeded = false; 1563 mViewVisibility = viewVisibility; 1564 1565 if (mAttachInfo.mHasWindowFocus) { 1566 final boolean imTarget = WindowManager.LayoutParams 1567 .mayUseInputMethod(mWindowAttributes.flags); 1568 if (imTarget != mLastWasImTarget) { 1569 mLastWasImTarget = imTarget; 1570 InputMethodManager imm = InputMethodManager.peekInstance(); 1571 if (imm != null && imTarget) { 1572 imm.startGettingWindowFocus(mView); 1573 imm.onWindowFocus(mView, mView.findFocus(), 1574 mWindowAttributes.softInputMode, 1575 !mHasHadWindowFocus, mWindowAttributes.flags); 1576 } 1577 } 1578 } 1579 1580 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1581 viewVisibility != View.VISIBLE; 1582 1583 if (!cancelDraw && !newSurface) { 1584 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1585 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1586 mPendingTransitions.get(i).startChangingAnimations(); 1587 } 1588 mPendingTransitions.clear(); 1589 } 1590 mFullRedrawNeeded = false; 1591 1592 final long drawStartTime; 1593 if (ViewDebug.DEBUG_LATENCY) { 1594 drawStartTime = System.nanoTime(); 1595 } 1596 1597 draw(fullRedrawNeeded); 1598 1599 if (ViewDebug.DEBUG_LATENCY) { 1600 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1601 } 1602 1603 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1604 || mReportNextDraw) { 1605 if (LOCAL_LOGV) { 1606 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1607 } 1608 mReportNextDraw = false; 1609 if (mSurfaceHolder != null && mSurface.isValid()) { 1610 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1611 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1612 if (callbacks != null) { 1613 for (SurfaceHolder.Callback c : callbacks) { 1614 if (c instanceof SurfaceHolder.Callback2) { 1615 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1616 mSurfaceHolder); 1617 } 1618 } 1619 } 1620 } 1621 try { 1622 sWindowSession.finishDrawing(mWindow); 1623 } catch (RemoteException e) { 1624 } 1625 } 1626 } else { 1627 // End any pending transitions on this non-visible window 1628 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1629 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1630 mPendingTransitions.get(i).endChangingAnimations(); 1631 } 1632 mPendingTransitions.clear(); 1633 } 1634 // We were supposed to report when we are done drawing. Since we canceled the 1635 // draw, remember it here. 1636 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1637 mReportNextDraw = true; 1638 } 1639 if (fullRedrawNeeded) { 1640 mFullRedrawNeeded = true; 1641 } 1642 1643 if (viewVisibility == View.VISIBLE) { 1644 // Try again 1645 scheduleTraversals(); 1646 } 1647 } 1648 } 1649 1650 public void requestTransparentRegion(View child) { 1651 // the test below should not fail unless someone is messing with us 1652 checkThread(); 1653 if (mView == child) { 1654 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1655 // Need to make sure we re-evaluate the window attributes next 1656 // time around, to ensure the window has the correct format. 1657 mWindowAttributesChanged = true; 1658 mWindowAttributesChangesFlag = 0; 1659 requestLayout(); 1660 } 1661 } 1662 1663 /** 1664 * Figures out the measure spec for the root view in a window based on it's 1665 * layout params. 1666 * 1667 * @param windowSize 1668 * The available width or height of the window 1669 * 1670 * @param rootDimension 1671 * The layout params for one dimension (width or height) of the 1672 * window. 1673 * 1674 * @return The measure spec to use to measure the root view. 1675 */ 1676 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1677 int measureSpec; 1678 switch (rootDimension) { 1679 1680 case ViewGroup.LayoutParams.MATCH_PARENT: 1681 // Window can't resize. Force root view to be windowSize. 1682 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1683 break; 1684 case ViewGroup.LayoutParams.WRAP_CONTENT: 1685 // Window can resize. Set max size for root view. 1686 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1687 break; 1688 default: 1689 // Window wants to be an exact size. Force root view to be that size. 1690 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1691 break; 1692 } 1693 return measureSpec; 1694 } 1695 1696 int mHardwareYOffset; 1697 int mResizeAlpha; 1698 final Paint mResizePaint = new Paint(); 1699 1700 public void onHardwarePreDraw(HardwareCanvas canvas) { 1701 canvas.translate(0, -mHardwareYOffset); 1702 } 1703 1704 public void onHardwarePostDraw(HardwareCanvas canvas) { 1705 if (mResizeBuffer != null) { 1706 mResizePaint.setAlpha(mResizeAlpha); 1707 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1708 } 1709 } 1710 1711 /** 1712 * @hide 1713 */ 1714 void outputDisplayList(View view) { 1715 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1716 DisplayList displayList = view.getDisplayList(); 1717 if (displayList != null) { 1718 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1719 } 1720 } 1721 } 1722 1723 /** 1724 * @see #PROPERTY_PROFILE_RENDERING 1725 */ 1726 private void profileRendering(boolean enabled) { 1727 if (mProfileRendering) { 1728 mRenderProfilingEnabled = enabled; 1729 if (mRenderProfiler == null) { 1730 mRenderProfiler = new Thread(new Runnable() { 1731 @Override 1732 public void run() { 1733 Log.d(TAG, "Starting profiling thread"); 1734 while (mRenderProfilingEnabled) { 1735 mAttachInfo.mHandler.post(new Runnable() { 1736 @Override 1737 public void run() { 1738 mDirty.set(0, 0, mWidth, mHeight); 1739 scheduleTraversals(); 1740 } 1741 }); 1742 try { 1743 // TODO: This should use vsync when we get an API 1744 Thread.sleep(15); 1745 } catch (InterruptedException e) { 1746 Log.d(TAG, "Exiting profiling thread"); 1747 } 1748 } 1749 } 1750 }, "Rendering Profiler"); 1751 mRenderProfiler.start(); 1752 } else { 1753 mRenderProfiler.interrupt(); 1754 mRenderProfiler = null; 1755 } 1756 } 1757 } 1758 1759 private void draw(boolean fullRedrawNeeded) { 1760 Surface surface = mSurface; 1761 if (surface == null || !surface.isValid()) { 1762 return; 1763 } 1764 1765 if (!sFirstDrawComplete) { 1766 synchronized (sFirstDrawHandlers) { 1767 sFirstDrawComplete = true; 1768 final int count = sFirstDrawHandlers.size(); 1769 for (int i = 0; i< count; i++) { 1770 post(sFirstDrawHandlers.get(i)); 1771 } 1772 } 1773 } 1774 1775 scrollToRectOrFocus(null, false); 1776 1777 if (mAttachInfo.mViewScrollChanged) { 1778 mAttachInfo.mViewScrollChanged = false; 1779 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1780 } 1781 1782 int yoff; 1783 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1784 if (animating) { 1785 yoff = mScroller.getCurrY(); 1786 } else { 1787 yoff = mScrollY; 1788 } 1789 if (mCurScrollY != yoff) { 1790 mCurScrollY = yoff; 1791 fullRedrawNeeded = true; 1792 } 1793 float appScale = mAttachInfo.mApplicationScale; 1794 boolean scalingRequired = mAttachInfo.mScalingRequired; 1795 1796 int resizeAlpha = 0; 1797 if (mResizeBuffer != null) { 1798 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1799 if (deltaTime < mResizeBufferDuration) { 1800 float amt = deltaTime/(float) mResizeBufferDuration; 1801 amt = mResizeInterpolator.getInterpolation(amt); 1802 animating = true; 1803 resizeAlpha = 255 - (int)(amt*255); 1804 } else { 1805 disposeResizeBuffer(); 1806 } 1807 } 1808 1809 Rect dirty = mDirty; 1810 if (mSurfaceHolder != null) { 1811 // The app owns the surface, we won't draw. 1812 dirty.setEmpty(); 1813 if (animating) { 1814 if (mScroller != null) { 1815 mScroller.abortAnimation(); 1816 } 1817 disposeResizeBuffer(); 1818 } 1819 return; 1820 } 1821 1822 if (fullRedrawNeeded) { 1823 mAttachInfo.mIgnoreDirtyState = true; 1824 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1825 } 1826 1827 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1828 if (!dirty.isEmpty() || mIsAnimating) { 1829 mIsAnimating = false; 1830 mHardwareYOffset = yoff; 1831 mResizeAlpha = resizeAlpha; 1832 1833 mCurrentDirty.set(dirty); 1834 mCurrentDirty.union(mPreviousDirty); 1835 mPreviousDirty.set(dirty); 1836 dirty.setEmpty(); 1837 1838 Rect currentDirty = mCurrentDirty; 1839 if (animating) { 1840 currentDirty = null; 1841 } 1842 1843 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1844 mPreviousDirty.set(0, 0, mWidth, mHeight); 1845 } 1846 } 1847 1848 if (animating) { 1849 mFullRedrawNeeded = true; 1850 scheduleTraversals(); 1851 } 1852 1853 return; 1854 } 1855 1856 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1857 Log.v(TAG, "Draw " + mView + "/" 1858 + mWindowAttributes.getTitle() 1859 + ": dirty={" + dirty.left + "," + dirty.top 1860 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1861 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1862 appScale + ", width=" + mWidth + ", height=" + mHeight); 1863 } 1864 1865 if (!dirty.isEmpty() || mIsAnimating) { 1866 Canvas canvas; 1867 try { 1868 int left = dirty.left; 1869 int top = dirty.top; 1870 int right = dirty.right; 1871 int bottom = dirty.bottom; 1872 1873 final long lockCanvasStartTime; 1874 if (ViewDebug.DEBUG_LATENCY) { 1875 lockCanvasStartTime = System.nanoTime(); 1876 } 1877 1878 canvas = surface.lockCanvas(dirty); 1879 1880 if (ViewDebug.DEBUG_LATENCY) { 1881 long now = System.nanoTime(); 1882 Log.d(TAG, "Latency: Spent " 1883 + ((now - lockCanvasStartTime) * 0.000001f) 1884 + "ms waiting for surface.lockCanvas()"); 1885 } 1886 1887 if (left != dirty.left || top != dirty.top || right != dirty.right || 1888 bottom != dirty.bottom) { 1889 mAttachInfo.mIgnoreDirtyState = true; 1890 } 1891 1892 // TODO: Do this in native 1893 canvas.setDensity(mDensity); 1894 } catch (Surface.OutOfResourcesException e) { 1895 Log.e(TAG, "OutOfResourcesException locking surface", e); 1896 try { 1897 if (!sWindowSession.outOfMemory(mWindow)) { 1898 Slog.w(TAG, "No processes killed for memory; killing self"); 1899 Process.killProcess(Process.myPid()); 1900 } 1901 } catch (RemoteException ex) { 1902 } 1903 mLayoutRequested = true; // ask wm for a new surface next time. 1904 return; 1905 } catch (IllegalArgumentException e) { 1906 Log.e(TAG, "IllegalArgumentException locking surface", e); 1907 // Don't assume this is due to out of memory, it could be 1908 // something else, and if it is something else then we could 1909 // kill stuff (or ourself) for no reason. 1910 mLayoutRequested = true; // ask wm for a new surface next time. 1911 return; 1912 } 1913 1914 try { 1915 if (!dirty.isEmpty() || mIsAnimating) { 1916 long startTime = 0L; 1917 1918 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1919 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1920 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1921 //canvas.drawARGB(255, 255, 0, 0); 1922 } 1923 1924 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1925 startTime = SystemClock.elapsedRealtime(); 1926 } 1927 1928 // If this bitmap's format includes an alpha channel, we 1929 // need to clear it before drawing so that the child will 1930 // properly re-composite its drawing on a transparent 1931 // background. This automatically respects the clip/dirty region 1932 // or 1933 // If we are applying an offset, we need to clear the area 1934 // where the offset doesn't appear to avoid having garbage 1935 // left in the blank areas. 1936 if (!canvas.isOpaque() || yoff != 0) { 1937 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1938 } 1939 1940 dirty.setEmpty(); 1941 mIsAnimating = false; 1942 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1943 mView.mPrivateFlags |= View.DRAWN; 1944 1945 if (DEBUG_DRAW) { 1946 Context cxt = mView.getContext(); 1947 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1948 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1949 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1950 } 1951 try { 1952 canvas.translate(0, -yoff); 1953 if (mTranslator != null) { 1954 mTranslator.translateCanvas(canvas); 1955 } 1956 canvas.setScreenDensity(scalingRequired 1957 ? DisplayMetrics.DENSITY_DEVICE : 0); 1958 mAttachInfo.mSetIgnoreDirtyState = false; 1959 mView.draw(canvas); 1960 } finally { 1961 if (!mAttachInfo.mSetIgnoreDirtyState) { 1962 // Only clear the flag if it was not set during the mView.draw() call 1963 mAttachInfo.mIgnoreDirtyState = false; 1964 } 1965 } 1966 1967 if (false && ViewDebug.consistencyCheckEnabled) { 1968 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 1969 } 1970 1971 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1972 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 1973 } 1974 } 1975 1976 } finally { 1977 surface.unlockCanvasAndPost(canvas); 1978 } 1979 } 1980 1981 if (LOCAL_LOGV) { 1982 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 1983 } 1984 1985 if (animating) { 1986 mFullRedrawNeeded = true; 1987 scheduleTraversals(); 1988 } 1989 } 1990 1991 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 1992 final View.AttachInfo attachInfo = mAttachInfo; 1993 final Rect ci = attachInfo.mContentInsets; 1994 final Rect vi = attachInfo.mVisibleInsets; 1995 int scrollY = 0; 1996 boolean handled = false; 1997 1998 if (vi.left > ci.left || vi.top > ci.top 1999 || vi.right > ci.right || vi.bottom > ci.bottom) { 2000 // We'll assume that we aren't going to change the scroll 2001 // offset, since we want to avoid that unless it is actually 2002 // going to make the focus visible... otherwise we scroll 2003 // all over the place. 2004 scrollY = mScrollY; 2005 // We can be called for two different situations: during a draw, 2006 // to update the scroll position if the focus has changed (in which 2007 // case 'rectangle' is null), or in response to a 2008 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2009 // is non-null and we just want to scroll to whatever that 2010 // rectangle is). 2011 View focus = mRealFocusedView; 2012 2013 // When in touch mode, focus points to the previously focused view, 2014 // which may have been removed from the view hierarchy. The following 2015 // line checks whether the view is still in our hierarchy. 2016 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2017 mRealFocusedView = null; 2018 return false; 2019 } 2020 2021 if (focus != mLastScrolledFocus) { 2022 // If the focus has changed, then ignore any requests to scroll 2023 // to a rectangle; first we want to make sure the entire focus 2024 // view is visible. 2025 rectangle = null; 2026 } 2027 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2028 + " rectangle=" + rectangle + " ci=" + ci 2029 + " vi=" + vi); 2030 if (focus == mLastScrolledFocus && !mScrollMayChange 2031 && rectangle == null) { 2032 // Optimization: if the focus hasn't changed since last 2033 // time, and no layout has happened, then just leave things 2034 // as they are. 2035 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2036 + mScrollY + " vi=" + vi.toShortString()); 2037 } else if (focus != null) { 2038 // We need to determine if the currently focused view is 2039 // within the visible part of the window and, if not, apply 2040 // a pan so it can be seen. 2041 mLastScrolledFocus = focus; 2042 mScrollMayChange = false; 2043 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2044 // Try to find the rectangle from the focus view. 2045 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2046 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2047 + mView.getWidth() + " h=" + mView.getHeight() 2048 + " ci=" + ci.toShortString() 2049 + " vi=" + vi.toShortString()); 2050 if (rectangle == null) { 2051 focus.getFocusedRect(mTempRect); 2052 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2053 + ": focusRect=" + mTempRect.toShortString()); 2054 if (mView instanceof ViewGroup) { 2055 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2056 focus, mTempRect); 2057 } 2058 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2059 "Focus in window: focusRect=" 2060 + mTempRect.toShortString() 2061 + " visRect=" + mVisRect.toShortString()); 2062 } else { 2063 mTempRect.set(rectangle); 2064 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2065 "Request scroll to rect: " 2066 + mTempRect.toShortString() 2067 + " visRect=" + mVisRect.toShortString()); 2068 } 2069 if (mTempRect.intersect(mVisRect)) { 2070 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2071 "Focus window visible rect: " 2072 + mTempRect.toShortString()); 2073 if (mTempRect.height() > 2074 (mView.getHeight()-vi.top-vi.bottom)) { 2075 // If the focus simply is not going to fit, then 2076 // best is probably just to leave things as-is. 2077 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2078 "Too tall; leaving scrollY=" + scrollY); 2079 } else if ((mTempRect.top-scrollY) < vi.top) { 2080 scrollY -= vi.top - (mTempRect.top-scrollY); 2081 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2082 "Top covered; scrollY=" + scrollY); 2083 } else if ((mTempRect.bottom-scrollY) 2084 > (mView.getHeight()-vi.bottom)) { 2085 scrollY += (mTempRect.bottom-scrollY) 2086 - (mView.getHeight()-vi.bottom); 2087 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2088 "Bottom covered; scrollY=" + scrollY); 2089 } 2090 handled = true; 2091 } 2092 } 2093 } 2094 } 2095 2096 if (scrollY != mScrollY) { 2097 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2098 + mScrollY + " , new=" + scrollY); 2099 if (!immediate && mResizeBuffer == null) { 2100 if (mScroller == null) { 2101 mScroller = new Scroller(mView.getContext()); 2102 } 2103 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2104 } else if (mScroller != null) { 2105 mScroller.abortAnimation(); 2106 } 2107 mScrollY = scrollY; 2108 } 2109 2110 return handled; 2111 } 2112 2113 public void requestChildFocus(View child, View focused) { 2114 checkThread(); 2115 if (mFocusedView != focused) { 2116 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2117 scheduleTraversals(); 2118 } 2119 mFocusedView = mRealFocusedView = focused; 2120 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2121 + mFocusedView); 2122 } 2123 2124 public void clearChildFocus(View child) { 2125 checkThread(); 2126 2127 View oldFocus = mFocusedView; 2128 2129 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2130 mFocusedView = mRealFocusedView = null; 2131 if (mView != null && !mView.hasFocus()) { 2132 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2133 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2134 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2135 } 2136 } else if (oldFocus != null) { 2137 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2138 } 2139 } 2140 2141 2142 public void focusableViewAvailable(View v) { 2143 checkThread(); 2144 2145 if (mView != null) { 2146 if (!mView.hasFocus()) { 2147 v.requestFocus(); 2148 } else { 2149 // the one case where will transfer focus away from the current one 2150 // is if the current view is a view group that prefers to give focus 2151 // to its children first AND the view is a descendant of it. 2152 mFocusedView = mView.findFocus(); 2153 boolean descendantsHaveDibsOnFocus = 2154 (mFocusedView instanceof ViewGroup) && 2155 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2156 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2157 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2158 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2159 v.requestFocus(); 2160 } 2161 } 2162 } 2163 } 2164 2165 public void recomputeViewAttributes(View child) { 2166 checkThread(); 2167 if (mView == child) { 2168 mAttachInfo.mRecomputeGlobalAttributes = true; 2169 if (!mWillDrawSoon) { 2170 scheduleTraversals(); 2171 } 2172 } 2173 } 2174 2175 void dispatchDetachedFromWindow() { 2176 if (mView != null && mView.mAttachInfo != null) { 2177 if (mAttachInfo.mHardwareRenderer != null && 2178 mAttachInfo.mHardwareRenderer.isEnabled()) { 2179 mAttachInfo.mHardwareRenderer.validate(); 2180 } 2181 mView.dispatchDetachedFromWindow(); 2182 } 2183 2184 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2185 mAccessibilityManager.removeAccessibilityStateChangeListener( 2186 mAccessibilityInteractionConnectionManager); 2187 removeSendWindowContentChangedCallback(); 2188 2189 mView = null; 2190 mAttachInfo.mRootView = null; 2191 mAttachInfo.mSurface = null; 2192 2193 destroyHardwareRenderer(); 2194 2195 mSurface.release(); 2196 2197 if (mInputQueueCallback != null && mInputQueue != null) { 2198 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2199 mInputQueueCallback = null; 2200 mInputQueue = null; 2201 } else if (mInputChannel != null) { 2202 InputQueue.unregisterInputChannel(mInputChannel); 2203 } 2204 try { 2205 sWindowSession.remove(mWindow); 2206 } catch (RemoteException e) { 2207 } 2208 2209 // Dispose the input channel after removing the window so the Window Manager 2210 // doesn't interpret the input channel being closed as an abnormal termination. 2211 if (mInputChannel != null) { 2212 mInputChannel.dispose(); 2213 mInputChannel = null; 2214 } 2215 } 2216 2217 void updateConfiguration(Configuration config, boolean force) { 2218 if (DEBUG_CONFIGURATION) Log.v(TAG, 2219 "Applying new config to window " 2220 + mWindowAttributes.getTitle() 2221 + ": " + config); 2222 2223 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2224 if (ci != null) { 2225 config = new Configuration(config); 2226 ci.applyToConfiguration(config); 2227 } 2228 2229 synchronized (sConfigCallbacks) { 2230 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2231 sConfigCallbacks.get(i).onConfigurationChanged(config); 2232 } 2233 } 2234 if (mView != null) { 2235 // At this point the resources have been updated to 2236 // have the most recent config, whatever that is. Use 2237 // the on in them which may be newer. 2238 config = mView.getResources().getConfiguration(); 2239 if (force || mLastConfiguration.diff(config) != 0) { 2240 mLastConfiguration.setTo(config); 2241 mView.dispatchConfigurationChanged(config); 2242 } 2243 } 2244 } 2245 2246 /** 2247 * Return true if child is an ancestor of parent, (or equal to the parent). 2248 */ 2249 private static boolean isViewDescendantOf(View child, View parent) { 2250 if (child == parent) { 2251 return true; 2252 } 2253 2254 final ViewParent theParent = child.getParent(); 2255 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2256 } 2257 2258 private static void forceLayout(View view) { 2259 view.forceLayout(); 2260 if (view instanceof ViewGroup) { 2261 ViewGroup group = (ViewGroup) view; 2262 final int count = group.getChildCount(); 2263 for (int i = 0; i < count; i++) { 2264 forceLayout(group.getChildAt(i)); 2265 } 2266 } 2267 } 2268 2269 public final static int DO_TRAVERSAL = 1000; 2270 public final static int DIE = 1001; 2271 public final static int RESIZED = 1002; 2272 public final static int RESIZED_REPORT = 1003; 2273 public final static int WINDOW_FOCUS_CHANGED = 1004; 2274 public final static int DISPATCH_KEY = 1005; 2275 public final static int DISPATCH_POINTER = 1006; 2276 public final static int DISPATCH_TRACKBALL = 1007; 2277 public final static int DISPATCH_APP_VISIBILITY = 1008; 2278 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2279 public final static int FINISHED_EVENT = 1010; 2280 public final static int DISPATCH_KEY_FROM_IME = 1011; 2281 public final static int FINISH_INPUT_CONNECTION = 1012; 2282 public final static int CHECK_FOCUS = 1013; 2283 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2284 public final static int DISPATCH_DRAG_EVENT = 1015; 2285 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2286 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2287 public final static int DISPATCH_GENERIC_MOTION = 1018; 2288 public final static int UPDATE_CONFIGURATION = 1019; 2289 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2290 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2291 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2292 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2293 2294 @Override 2295 public String getMessageName(Message message) { 2296 switch (message.what) { 2297 case DO_TRAVERSAL: 2298 return "DO_TRAVERSAL"; 2299 case DIE: 2300 return "DIE"; 2301 case RESIZED: 2302 return "RESIZED"; 2303 case RESIZED_REPORT: 2304 return "RESIZED_REPORT"; 2305 case WINDOW_FOCUS_CHANGED: 2306 return "WINDOW_FOCUS_CHANGED"; 2307 case DISPATCH_KEY: 2308 return "DISPATCH_KEY"; 2309 case DISPATCH_POINTER: 2310 return "DISPATCH_POINTER"; 2311 case DISPATCH_TRACKBALL: 2312 return "DISPATCH_TRACKBALL"; 2313 case DISPATCH_APP_VISIBILITY: 2314 return "DISPATCH_APP_VISIBILITY"; 2315 case DISPATCH_GET_NEW_SURFACE: 2316 return "DISPATCH_GET_NEW_SURFACE"; 2317 case FINISHED_EVENT: 2318 return "FINISHED_EVENT"; 2319 case DISPATCH_KEY_FROM_IME: 2320 return "DISPATCH_KEY_FROM_IME"; 2321 case FINISH_INPUT_CONNECTION: 2322 return "FINISH_INPUT_CONNECTION"; 2323 case CHECK_FOCUS: 2324 return "CHECK_FOCUS"; 2325 case CLOSE_SYSTEM_DIALOGS: 2326 return "CLOSE_SYSTEM_DIALOGS"; 2327 case DISPATCH_DRAG_EVENT: 2328 return "DISPATCH_DRAG_EVENT"; 2329 case DISPATCH_DRAG_LOCATION_EVENT: 2330 return "DISPATCH_DRAG_LOCATION_EVENT"; 2331 case DISPATCH_SYSTEM_UI_VISIBILITY: 2332 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2333 case DISPATCH_GENERIC_MOTION: 2334 return "DISPATCH_GENERIC_MOTION"; 2335 case UPDATE_CONFIGURATION: 2336 return "UPDATE_CONFIGURATION"; 2337 case DO_PERFORM_ACCESSIBILITY_ACTION: 2338 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2339 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2340 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2341 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2342 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2343 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2344 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2345 2346 } 2347 return super.getMessageName(message); 2348 } 2349 2350 @Override 2351 public void handleMessage(Message msg) { 2352 switch (msg.what) { 2353 case View.AttachInfo.INVALIDATE_MSG: 2354 ((View) msg.obj).invalidate(); 2355 break; 2356 case View.AttachInfo.INVALIDATE_RECT_MSG: 2357 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2358 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2359 info.release(); 2360 break; 2361 case DO_TRAVERSAL: 2362 if (mProfile) { 2363 Debug.startMethodTracing("ViewAncestor"); 2364 } 2365 2366 final long traversalStartTime; 2367 if (ViewDebug.DEBUG_LATENCY) { 2368 traversalStartTime = System.nanoTime(); 2369 mLastDrawDurationNanos = 0; 2370 } 2371 2372 performTraversals(); 2373 2374 if (ViewDebug.DEBUG_LATENCY) { 2375 long now = System.nanoTime(); 2376 Log.d(TAG, "Latency: Spent " 2377 + ((now - traversalStartTime) * 0.000001f) 2378 + "ms in performTraversals(), with " 2379 + (mLastDrawDurationNanos * 0.000001f) 2380 + "ms of that time in draw()"); 2381 mLastTraversalFinishedTimeNanos = now; 2382 } 2383 2384 if (mProfile) { 2385 Debug.stopMethodTracing(); 2386 mProfile = false; 2387 } 2388 break; 2389 case FINISHED_EVENT: 2390 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2391 break; 2392 case DISPATCH_KEY: 2393 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2394 break; 2395 case DISPATCH_POINTER: 2396 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2397 break; 2398 case DISPATCH_TRACKBALL: 2399 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2400 break; 2401 case DISPATCH_GENERIC_MOTION: 2402 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2403 break; 2404 case DISPATCH_APP_VISIBILITY: 2405 handleAppVisibility(msg.arg1 != 0); 2406 break; 2407 case DISPATCH_GET_NEW_SURFACE: 2408 handleGetNewSurface(); 2409 break; 2410 case RESIZED: 2411 ResizedInfo ri = (ResizedInfo)msg.obj; 2412 2413 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2414 && mPendingContentInsets.equals(ri.coveredInsets) 2415 && mPendingVisibleInsets.equals(ri.visibleInsets) 2416 && ((ResizedInfo)msg.obj).newConfig == null) { 2417 break; 2418 } 2419 // fall through... 2420 case RESIZED_REPORT: 2421 if (mAdded) { 2422 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2423 if (config != null) { 2424 updateConfiguration(config, false); 2425 } 2426 mWinFrame.left = 0; 2427 mWinFrame.right = msg.arg1; 2428 mWinFrame.top = 0; 2429 mWinFrame.bottom = msg.arg2; 2430 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2431 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2432 if (msg.what == RESIZED_REPORT) { 2433 mReportNextDraw = true; 2434 } 2435 2436 if (mView != null) { 2437 forceLayout(mView); 2438 } 2439 requestLayout(); 2440 } 2441 break; 2442 case WINDOW_FOCUS_CHANGED: { 2443 if (mAdded) { 2444 boolean hasWindowFocus = msg.arg1 != 0; 2445 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2446 2447 profileRendering(hasWindowFocus); 2448 2449 if (hasWindowFocus) { 2450 boolean inTouchMode = msg.arg2 != 0; 2451 ensureTouchModeLocally(inTouchMode); 2452 2453 if (mAttachInfo.mHardwareRenderer != null && 2454 mSurface != null && mSurface.isValid()) { 2455 mFullRedrawNeeded = true; 2456 try { 2457 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2458 mAttachInfo, mHolder); 2459 } catch (Surface.OutOfResourcesException e) { 2460 Log.e(TAG, "OutOfResourcesException locking surface", e); 2461 try { 2462 if (!sWindowSession.outOfMemory(mWindow)) { 2463 Slog.w(TAG, "No processes killed for memory; killing self"); 2464 Process.killProcess(Process.myPid()); 2465 } 2466 } catch (RemoteException ex) { 2467 } 2468 // Retry in a bit. 2469 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2470 return; 2471 } 2472 } 2473 } 2474 2475 mLastWasImTarget = WindowManager.LayoutParams 2476 .mayUseInputMethod(mWindowAttributes.flags); 2477 2478 InputMethodManager imm = InputMethodManager.peekInstance(); 2479 if (mView != null) { 2480 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2481 imm.startGettingWindowFocus(mView); 2482 } 2483 mAttachInfo.mKeyDispatchState.reset(); 2484 mView.dispatchWindowFocusChanged(hasWindowFocus); 2485 } 2486 2487 // Note: must be done after the focus change callbacks, 2488 // so all of the view state is set up correctly. 2489 if (hasWindowFocus) { 2490 if (imm != null && mLastWasImTarget) { 2491 imm.onWindowFocus(mView, mView.findFocus(), 2492 mWindowAttributes.softInputMode, 2493 !mHasHadWindowFocus, mWindowAttributes.flags); 2494 } 2495 // Clear the forward bit. We can just do this directly, since 2496 // the window manager doesn't care about it. 2497 mWindowAttributes.softInputMode &= 2498 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2499 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2500 .softInputMode &= 2501 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2502 mHasHadWindowFocus = true; 2503 } 2504 2505 if (hasWindowFocus && mView != null) { 2506 sendAccessibilityEvents(); 2507 } 2508 } 2509 } break; 2510 case DIE: 2511 doDie(); 2512 break; 2513 case DISPATCH_KEY_FROM_IME: { 2514 if (LOCAL_LOGV) Log.v( 2515 TAG, "Dispatching key " 2516 + msg.obj + " from IME to " + mView); 2517 KeyEvent event = (KeyEvent)msg.obj; 2518 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2519 // The IME is trying to say this event is from the 2520 // system! Bad bad bad! 2521 //noinspection UnusedAssignment 2522 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2523 } 2524 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2525 } break; 2526 case FINISH_INPUT_CONNECTION: { 2527 InputMethodManager imm = InputMethodManager.peekInstance(); 2528 if (imm != null) { 2529 imm.reportFinishInputConnection((InputConnection)msg.obj); 2530 } 2531 } break; 2532 case CHECK_FOCUS: { 2533 InputMethodManager imm = InputMethodManager.peekInstance(); 2534 if (imm != null) { 2535 imm.checkFocus(); 2536 } 2537 } break; 2538 case CLOSE_SYSTEM_DIALOGS: { 2539 if (mView != null) { 2540 mView.onCloseSystemDialogs((String)msg.obj); 2541 } 2542 } break; 2543 case DISPATCH_DRAG_EVENT: 2544 case DISPATCH_DRAG_LOCATION_EVENT: { 2545 DragEvent event = (DragEvent)msg.obj; 2546 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2547 handleDragEvent(event); 2548 } break; 2549 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2550 handleDispatchSystemUiVisibilityChanged(msg.arg1); 2551 } break; 2552 case UPDATE_CONFIGURATION: { 2553 Configuration config = (Configuration)msg.obj; 2554 if (config.isOtherSeqNewer(mLastConfiguration)) { 2555 config = mLastConfiguration; 2556 } 2557 updateConfiguration(config, false); 2558 } break; 2559 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2560 if (mView != null) { 2561 getAccessibilityInteractionController() 2562 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2563 } 2564 } break; 2565 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2566 if (mView != null) { 2567 getAccessibilityInteractionController() 2568 .perfromAccessibilityActionUiThread(msg); 2569 } 2570 } break; 2571 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2572 if (mView != null) { 2573 getAccessibilityInteractionController() 2574 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2575 } 2576 } break; 2577 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2578 if (mView != null) { 2579 getAccessibilityInteractionController() 2580 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2581 } 2582 } break; 2583 } 2584 } 2585 2586 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2587 if (mFinishedCallback != null) { 2588 Slog.w(TAG, "Received a new input event from the input queue but there is " 2589 + "already an unfinished input event in progress."); 2590 } 2591 2592 if (ViewDebug.DEBUG_LATENCY) { 2593 mInputEventReceiveTimeNanos = System.nanoTime(); 2594 mInputEventDeliverTimeNanos = 0; 2595 mInputEventDeliverPostImeTimeNanos = 0; 2596 } 2597 2598 mFinishedCallback = finishedCallback; 2599 } 2600 2601 private void finishInputEvent(InputEvent event, boolean handled) { 2602 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2603 2604 if (mFinishedCallback == null) { 2605 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2606 + "is finished but there is no input event actually in progress."); 2607 return; 2608 } 2609 2610 if (ViewDebug.DEBUG_LATENCY) { 2611 final long now = System.nanoTime(); 2612 final long eventTime = event.getEventTimeNano(); 2613 final StringBuilder msg = new StringBuilder(); 2614 msg.append("Latency: Spent "); 2615 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2616 msg.append("ms processing "); 2617 if (event instanceof KeyEvent) { 2618 final KeyEvent keyEvent = (KeyEvent)event; 2619 msg.append("key event, action="); 2620 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2621 } else { 2622 final MotionEvent motionEvent = (MotionEvent)event; 2623 msg.append("motion event, action="); 2624 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2625 msg.append(", historySize="); 2626 msg.append(motionEvent.getHistorySize()); 2627 } 2628 msg.append(", handled="); 2629 msg.append(handled); 2630 msg.append(", received at +"); 2631 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2632 if (mInputEventDeliverTimeNanos != 0) { 2633 msg.append("ms, delivered at +"); 2634 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2635 } 2636 if (mInputEventDeliverPostImeTimeNanos != 0) { 2637 msg.append("ms, delivered post IME at +"); 2638 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2639 } 2640 msg.append("ms, finished at +"); 2641 msg.append((now - eventTime) * 0.000001f); 2642 msg.append("ms."); 2643 Log.d(TAG, msg.toString()); 2644 } 2645 2646 mFinishedCallback.finished(handled); 2647 mFinishedCallback = null; 2648 } 2649 2650 /** 2651 * Something in the current window tells us we need to change the touch mode. For 2652 * example, we are not in touch mode, and the user touches the screen. 2653 * 2654 * If the touch mode has changed, tell the window manager, and handle it locally. 2655 * 2656 * @param inTouchMode Whether we want to be in touch mode. 2657 * @return True if the touch mode changed and focus changed was changed as a result 2658 */ 2659 boolean ensureTouchMode(boolean inTouchMode) { 2660 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2661 + "touch mode is " + mAttachInfo.mInTouchMode); 2662 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2663 2664 // tell the window manager 2665 try { 2666 sWindowSession.setInTouchMode(inTouchMode); 2667 } catch (RemoteException e) { 2668 throw new RuntimeException(e); 2669 } 2670 2671 // handle the change 2672 return ensureTouchModeLocally(inTouchMode); 2673 } 2674 2675 /** 2676 * Ensure that the touch mode for this window is set, and if it is changing, 2677 * take the appropriate action. 2678 * @param inTouchMode Whether we want to be in touch mode. 2679 * @return True if the touch mode changed and focus changed was changed as a result 2680 */ 2681 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2682 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2683 + "touch mode is " + mAttachInfo.mInTouchMode); 2684 2685 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2686 2687 mAttachInfo.mInTouchMode = inTouchMode; 2688 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2689 2690 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2691 } 2692 2693 private boolean enterTouchMode() { 2694 if (mView != null) { 2695 if (mView.hasFocus()) { 2696 // note: not relying on mFocusedView here because this could 2697 // be when the window is first being added, and mFocused isn't 2698 // set yet. 2699 final View focused = mView.findFocus(); 2700 if (focused != null && !focused.isFocusableInTouchMode()) { 2701 2702 final ViewGroup ancestorToTakeFocus = 2703 findAncestorToTakeFocusInTouchMode(focused); 2704 if (ancestorToTakeFocus != null) { 2705 // there is an ancestor that wants focus after its descendants that 2706 // is focusable in touch mode.. give it focus 2707 return ancestorToTakeFocus.requestFocus(); 2708 } else { 2709 // nothing appropriate to have focus in touch mode, clear it out 2710 mView.unFocus(); 2711 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2712 mFocusedView = null; 2713 return true; 2714 } 2715 } 2716 } 2717 } 2718 return false; 2719 } 2720 2721 2722 /** 2723 * Find an ancestor of focused that wants focus after its descendants and is 2724 * focusable in touch mode. 2725 * @param focused The currently focused view. 2726 * @return An appropriate view, or null if no such view exists. 2727 */ 2728 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2729 ViewParent parent = focused.getParent(); 2730 while (parent instanceof ViewGroup) { 2731 final ViewGroup vgParent = (ViewGroup) parent; 2732 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2733 && vgParent.isFocusableInTouchMode()) { 2734 return vgParent; 2735 } 2736 if (vgParent.isRootNamespace()) { 2737 return null; 2738 } else { 2739 parent = vgParent.getParent(); 2740 } 2741 } 2742 return null; 2743 } 2744 2745 private boolean leaveTouchMode() { 2746 if (mView != null) { 2747 if (mView.hasFocus()) { 2748 // i learned the hard way to not trust mFocusedView :) 2749 mFocusedView = mView.findFocus(); 2750 if (!(mFocusedView instanceof ViewGroup)) { 2751 // some view has focus, let it keep it 2752 return false; 2753 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2754 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2755 // some view group has focus, and doesn't prefer its children 2756 // over itself for focus, so let them keep it. 2757 return false; 2758 } 2759 } 2760 2761 // find the best view to give focus to in this brave new non-touch-mode 2762 // world 2763 final View focused = focusSearch(null, View.FOCUS_DOWN); 2764 if (focused != null) { 2765 return focused.requestFocus(View.FOCUS_DOWN); 2766 } 2767 } 2768 return false; 2769 } 2770 2771 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2772 if (ViewDebug.DEBUG_LATENCY) { 2773 mInputEventDeliverTimeNanos = System.nanoTime(); 2774 } 2775 2776 final boolean isTouchEvent = event.isTouchEvent(); 2777 if (mInputEventConsistencyVerifier != null) { 2778 if (isTouchEvent) { 2779 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2780 } else { 2781 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2782 } 2783 } 2784 2785 // If there is no view, then the event will not be handled. 2786 if (mView == null || !mAdded) { 2787 finishMotionEvent(event, sendDone, false); 2788 return; 2789 } 2790 2791 // Translate the pointer event for compatibility, if needed. 2792 if (mTranslator != null) { 2793 mTranslator.translateEventInScreenToAppWindow(event); 2794 } 2795 2796 // Enter touch mode on down or scroll. 2797 final int action = event.getAction(); 2798 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2799 ensureTouchMode(true); 2800 } 2801 2802 // Offset the scroll position. 2803 if (mCurScrollY != 0) { 2804 event.offsetLocation(0, mCurScrollY); 2805 } 2806 if (MEASURE_LATENCY) { 2807 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2808 } 2809 2810 // Remember the touch position for possible drag-initiation. 2811 if (isTouchEvent) { 2812 mLastTouchPoint.x = event.getRawX(); 2813 mLastTouchPoint.y = event.getRawY(); 2814 } 2815 2816 // Dispatch touch to view hierarchy. 2817 boolean handled = mView.dispatchPointerEvent(event); 2818 if (MEASURE_LATENCY) { 2819 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2820 } 2821 if (handled) { 2822 finishMotionEvent(event, sendDone, true); 2823 return; 2824 } 2825 2826 // Pointer event was unhandled. 2827 finishMotionEvent(event, sendDone, false); 2828 } 2829 2830 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2831 event.recycle(); 2832 if (sendDone) { 2833 finishInputEvent(event, handled); 2834 } 2835 //noinspection ConstantConditions 2836 if (LOCAL_LOGV || WATCH_POINTER) { 2837 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2838 Log.i(TAG, "Done dispatching!"); 2839 } 2840 } 2841 } 2842 2843 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2844 if (ViewDebug.DEBUG_LATENCY) { 2845 mInputEventDeliverTimeNanos = System.nanoTime(); 2846 } 2847 2848 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2849 2850 if (mInputEventConsistencyVerifier != null) { 2851 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2852 } 2853 2854 // If there is no view, then the event will not be handled. 2855 if (mView == null || !mAdded) { 2856 finishMotionEvent(event, sendDone, false); 2857 return; 2858 } 2859 2860 // Deliver the trackball event to the view. 2861 if (mView.dispatchTrackballEvent(event)) { 2862 // If we reach this, we delivered a trackball event to mView and 2863 // mView consumed it. Because we will not translate the trackball 2864 // event into a key event, touch mode will not exit, so we exit 2865 // touch mode here. 2866 ensureTouchMode(false); 2867 2868 finishMotionEvent(event, sendDone, true); 2869 mLastTrackballTime = Integer.MIN_VALUE; 2870 return; 2871 } 2872 2873 // Translate the trackball event into DPAD keys and try to deliver those. 2874 final TrackballAxis x = mTrackballAxisX; 2875 final TrackballAxis y = mTrackballAxisY; 2876 2877 long curTime = SystemClock.uptimeMillis(); 2878 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2879 // It has been too long since the last movement, 2880 // so restart at the beginning. 2881 x.reset(0); 2882 y.reset(0); 2883 mLastTrackballTime = curTime; 2884 } 2885 2886 final int action = event.getAction(); 2887 final int metaState = event.getMetaState(); 2888 switch (action) { 2889 case MotionEvent.ACTION_DOWN: 2890 x.reset(2); 2891 y.reset(2); 2892 deliverKeyEvent(new KeyEvent(curTime, curTime, 2893 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2894 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2895 InputDevice.SOURCE_KEYBOARD), false); 2896 break; 2897 case MotionEvent.ACTION_UP: 2898 x.reset(2); 2899 y.reset(2); 2900 deliverKeyEvent(new KeyEvent(curTime, curTime, 2901 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2902 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2903 InputDevice.SOURCE_KEYBOARD), false); 2904 break; 2905 } 2906 2907 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2908 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2909 + " move=" + event.getX() 2910 + " / Y=" + y.position + " step=" 2911 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2912 + " move=" + event.getY()); 2913 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2914 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2915 2916 // Generate DPAD events based on the trackball movement. 2917 // We pick the axis that has moved the most as the direction of 2918 // the DPAD. When we generate DPAD events for one axis, then the 2919 // other axis is reset -- we don't want to perform DPAD jumps due 2920 // to slight movements in the trackball when making major movements 2921 // along the other axis. 2922 int keycode = 0; 2923 int movement = 0; 2924 float accel = 1; 2925 if (xOff > yOff) { 2926 movement = x.generate((2/event.getXPrecision())); 2927 if (movement != 0) { 2928 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2929 : KeyEvent.KEYCODE_DPAD_LEFT; 2930 accel = x.acceleration; 2931 y.reset(2); 2932 } 2933 } else if (yOff > 0) { 2934 movement = y.generate((2/event.getYPrecision())); 2935 if (movement != 0) { 2936 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2937 : KeyEvent.KEYCODE_DPAD_UP; 2938 accel = y.acceleration; 2939 x.reset(2); 2940 } 2941 } 2942 2943 if (keycode != 0) { 2944 if (movement < 0) movement = -movement; 2945 int accelMovement = (int)(movement * accel); 2946 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2947 + " accelMovement=" + accelMovement 2948 + " accel=" + accel); 2949 if (accelMovement > movement) { 2950 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2951 + keycode); 2952 movement--; 2953 int repeatCount = accelMovement - movement; 2954 deliverKeyEvent(new KeyEvent(curTime, curTime, 2955 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2956 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2957 InputDevice.SOURCE_KEYBOARD), false); 2958 } 2959 while (movement > 0) { 2960 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2961 + keycode); 2962 movement--; 2963 curTime = SystemClock.uptimeMillis(); 2964 deliverKeyEvent(new KeyEvent(curTime, curTime, 2965 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2966 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2967 InputDevice.SOURCE_KEYBOARD), false); 2968 deliverKeyEvent(new KeyEvent(curTime, curTime, 2969 KeyEvent.ACTION_UP, keycode, 0, metaState, 2970 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2971 InputDevice.SOURCE_KEYBOARD), false); 2972 } 2973 mLastTrackballTime = curTime; 2974 } 2975 2976 // Unfortunately we can't tell whether the application consumed the keys, so 2977 // we always consider the trackball event handled. 2978 finishMotionEvent(event, sendDone, true); 2979 } 2980 2981 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 2982 if (ViewDebug.DEBUG_LATENCY) { 2983 mInputEventDeliverTimeNanos = System.nanoTime(); 2984 } 2985 2986 if (mInputEventConsistencyVerifier != null) { 2987 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2988 } 2989 2990 final int source = event.getSource(); 2991 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 2992 2993 // If there is no view, then the event will not be handled. 2994 if (mView == null || !mAdded) { 2995 if (isJoystick) { 2996 updateJoystickDirection(event, false); 2997 } 2998 finishMotionEvent(event, sendDone, false); 2999 return; 3000 } 3001 3002 // Deliver the event to the view. 3003 if (mView.dispatchGenericMotionEvent(event)) { 3004 if (isJoystick) { 3005 updateJoystickDirection(event, false); 3006 } 3007 finishMotionEvent(event, sendDone, true); 3008 return; 3009 } 3010 3011 if (isJoystick) { 3012 // Translate the joystick event into DPAD keys and try to deliver those. 3013 updateJoystickDirection(event, true); 3014 finishMotionEvent(event, sendDone, true); 3015 } else { 3016 finishMotionEvent(event, sendDone, false); 3017 } 3018 } 3019 3020 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3021 final long time = event.getEventTime(); 3022 final int metaState = event.getMetaState(); 3023 final int deviceId = event.getDeviceId(); 3024 final int source = event.getSource(); 3025 3026 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3027 if (xDirection == 0) { 3028 xDirection = joystickAxisValueToDirection(event.getX()); 3029 } 3030 3031 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3032 if (yDirection == 0) { 3033 yDirection = joystickAxisValueToDirection(event.getY()); 3034 } 3035 3036 if (xDirection != mLastJoystickXDirection) { 3037 if (mLastJoystickXKeyCode != 0) { 3038 deliverKeyEvent(new KeyEvent(time, time, 3039 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3040 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3041 mLastJoystickXKeyCode = 0; 3042 } 3043 3044 mLastJoystickXDirection = xDirection; 3045 3046 if (xDirection != 0 && synthesizeNewKeys) { 3047 mLastJoystickXKeyCode = xDirection > 0 3048 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3049 deliverKeyEvent(new KeyEvent(time, time, 3050 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3051 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3052 } 3053 } 3054 3055 if (yDirection != mLastJoystickYDirection) { 3056 if (mLastJoystickYKeyCode != 0) { 3057 deliverKeyEvent(new KeyEvent(time, time, 3058 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3059 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3060 mLastJoystickYKeyCode = 0; 3061 } 3062 3063 mLastJoystickYDirection = yDirection; 3064 3065 if (yDirection != 0 && synthesizeNewKeys) { 3066 mLastJoystickYKeyCode = yDirection > 0 3067 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3068 deliverKeyEvent(new KeyEvent(time, time, 3069 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3070 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3071 } 3072 } 3073 } 3074 3075 private static int joystickAxisValueToDirection(float value) { 3076 if (value >= 0.5f) { 3077 return 1; 3078 } else if (value <= -0.5f) { 3079 return -1; 3080 } else { 3081 return 0; 3082 } 3083 } 3084 3085 /** 3086 * Returns true if the key is used for keyboard navigation. 3087 * @param keyEvent The key event. 3088 * @return True if the key is used for keyboard navigation. 3089 */ 3090 private static boolean isNavigationKey(KeyEvent keyEvent) { 3091 switch (keyEvent.getKeyCode()) { 3092 case KeyEvent.KEYCODE_DPAD_LEFT: 3093 case KeyEvent.KEYCODE_DPAD_RIGHT: 3094 case KeyEvent.KEYCODE_DPAD_UP: 3095 case KeyEvent.KEYCODE_DPAD_DOWN: 3096 case KeyEvent.KEYCODE_DPAD_CENTER: 3097 case KeyEvent.KEYCODE_PAGE_UP: 3098 case KeyEvent.KEYCODE_PAGE_DOWN: 3099 case KeyEvent.KEYCODE_MOVE_HOME: 3100 case KeyEvent.KEYCODE_MOVE_END: 3101 case KeyEvent.KEYCODE_TAB: 3102 case KeyEvent.KEYCODE_SPACE: 3103 case KeyEvent.KEYCODE_ENTER: 3104 return true; 3105 } 3106 return false; 3107 } 3108 3109 /** 3110 * Returns true if the key is used for typing. 3111 * @param keyEvent The key event. 3112 * @return True if the key is used for typing. 3113 */ 3114 private static boolean isTypingKey(KeyEvent keyEvent) { 3115 return keyEvent.getUnicodeChar() > 0; 3116 } 3117 3118 /** 3119 * See if the key event means we should leave touch mode (and leave touch mode if so). 3120 * @param event The key event. 3121 * @return Whether this key event should be consumed (meaning the act of 3122 * leaving touch mode alone is considered the event). 3123 */ 3124 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3125 // Only relevant in touch mode. 3126 if (!mAttachInfo.mInTouchMode) { 3127 return false; 3128 } 3129 3130 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3131 final int action = event.getAction(); 3132 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3133 return false; 3134 } 3135 3136 // Don't leave touch mode if the IME told us not to. 3137 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3138 return false; 3139 } 3140 3141 // If the key can be used for keyboard navigation then leave touch mode 3142 // and select a focused view if needed (in ensureTouchMode). 3143 // When a new focused view is selected, we consume the navigation key because 3144 // navigation doesn't make much sense unless a view already has focus so 3145 // the key's purpose is to set focus. 3146 if (isNavigationKey(event)) { 3147 return ensureTouchMode(false); 3148 } 3149 3150 // If the key can be used for typing then leave touch mode 3151 // and select a focused view if needed (in ensureTouchMode). 3152 // Always allow the view to process the typing key. 3153 if (isTypingKey(event)) { 3154 ensureTouchMode(false); 3155 return false; 3156 } 3157 3158 return false; 3159 } 3160 3161 int enqueuePendingEvent(Object event, boolean sendDone) { 3162 int seq = mPendingEventSeq+1; 3163 if (seq < 0) seq = 0; 3164 mPendingEventSeq = seq; 3165 mPendingEvents.put(seq, event); 3166 return sendDone ? seq : -seq; 3167 } 3168 3169 Object retrievePendingEvent(int seq) { 3170 if (seq < 0) seq = -seq; 3171 Object event = mPendingEvents.get(seq); 3172 if (event != null) { 3173 mPendingEvents.remove(seq); 3174 } 3175 return event; 3176 } 3177 3178 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3179 if (ViewDebug.DEBUG_LATENCY) { 3180 mInputEventDeliverTimeNanos = System.nanoTime(); 3181 } 3182 3183 if (mInputEventConsistencyVerifier != null) { 3184 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3185 } 3186 3187 // If there is no view, then the event will not be handled. 3188 if (mView == null || !mAdded) { 3189 finishKeyEvent(event, sendDone, false); 3190 return; 3191 } 3192 3193 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3194 3195 // Perform predispatching before the IME. 3196 if (mView.dispatchKeyEventPreIme(event)) { 3197 finishKeyEvent(event, sendDone, true); 3198 return; 3199 } 3200 3201 // Dispatch to the IME before propagating down the view hierarchy. 3202 // The IME will eventually call back into handleFinishedEvent. 3203 if (mLastWasImTarget) { 3204 InputMethodManager imm = InputMethodManager.peekInstance(); 3205 if (imm != null) { 3206 int seq = enqueuePendingEvent(event, sendDone); 3207 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3208 + seq + " event=" + event); 3209 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3210 return; 3211 } 3212 } 3213 3214 // Not dispatching to IME, continue with post IME actions. 3215 deliverKeyEventPostIme(event, sendDone); 3216 } 3217 3218 private void handleFinishedEvent(int seq, boolean handled) { 3219 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3220 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3221 + " handled=" + handled + " event=" + event); 3222 if (event != null) { 3223 final boolean sendDone = seq >= 0; 3224 if (handled) { 3225 finishKeyEvent(event, sendDone, true); 3226 } else { 3227 deliverKeyEventPostIme(event, sendDone); 3228 } 3229 } 3230 } 3231 3232 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3233 if (ViewDebug.DEBUG_LATENCY) { 3234 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3235 } 3236 3237 // If the view went away, then the event will not be handled. 3238 if (mView == null || !mAdded) { 3239 finishKeyEvent(event, sendDone, false); 3240 return; 3241 } 3242 3243 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3244 if (checkForLeavingTouchModeAndConsume(event)) { 3245 finishKeyEvent(event, sendDone, true); 3246 return; 3247 } 3248 3249 // Make sure the fallback event policy sees all keys that will be delivered to the 3250 // view hierarchy. 3251 mFallbackEventHandler.preDispatchKeyEvent(event); 3252 3253 // Deliver the key to the view hierarchy. 3254 if (mView.dispatchKeyEvent(event)) { 3255 finishKeyEvent(event, sendDone, true); 3256 return; 3257 } 3258 3259 // If the Control modifier is held, try to interpret the key as a shortcut. 3260 if (event.getAction() == KeyEvent.ACTION_UP 3261 && event.isCtrlPressed() 3262 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3263 if (mView.dispatchKeyShortcutEvent(event)) { 3264 finishKeyEvent(event, sendDone, true); 3265 return; 3266 } 3267 } 3268 3269 // Apply the fallback event policy. 3270 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3271 finishKeyEvent(event, sendDone, true); 3272 return; 3273 } 3274 3275 // Handle automatic focus changes. 3276 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3277 int direction = 0; 3278 switch (event.getKeyCode()) { 3279 case KeyEvent.KEYCODE_DPAD_LEFT: 3280 if (event.hasNoModifiers()) { 3281 direction = View.FOCUS_LEFT; 3282 } 3283 break; 3284 case KeyEvent.KEYCODE_DPAD_RIGHT: 3285 if (event.hasNoModifiers()) { 3286 direction = View.FOCUS_RIGHT; 3287 } 3288 break; 3289 case KeyEvent.KEYCODE_DPAD_UP: 3290 if (event.hasNoModifiers()) { 3291 direction = View.FOCUS_UP; 3292 } 3293 break; 3294 case KeyEvent.KEYCODE_DPAD_DOWN: 3295 if (event.hasNoModifiers()) { 3296 direction = View.FOCUS_DOWN; 3297 } 3298 break; 3299 case KeyEvent.KEYCODE_TAB: 3300 if (event.hasNoModifiers()) { 3301 direction = View.FOCUS_FORWARD; 3302 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3303 direction = View.FOCUS_BACKWARD; 3304 } 3305 break; 3306 } 3307 3308 if (direction != 0) { 3309 View focused = mView != null ? mView.findFocus() : null; 3310 if (focused != null) { 3311 View v = focused.focusSearch(direction); 3312 if (v != null && v != focused) { 3313 // do the math the get the interesting rect 3314 // of previous focused into the coord system of 3315 // newly focused view 3316 focused.getFocusedRect(mTempRect); 3317 if (mView instanceof ViewGroup) { 3318 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3319 focused, mTempRect); 3320 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3321 v, mTempRect); 3322 } 3323 if (v.requestFocus(direction, mTempRect)) { 3324 playSoundEffect( 3325 SoundEffectConstants.getContantForFocusDirection(direction)); 3326 finishKeyEvent(event, sendDone, true); 3327 return; 3328 } 3329 } 3330 3331 // Give the focused view a last chance to handle the dpad key. 3332 if (mView.dispatchUnhandledMove(focused, direction)) { 3333 finishKeyEvent(event, sendDone, true); 3334 return; 3335 } 3336 } 3337 } 3338 } 3339 3340 // Key was unhandled. 3341 finishKeyEvent(event, sendDone, false); 3342 } 3343 3344 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3345 if (sendDone) { 3346 finishInputEvent(event, handled); 3347 } 3348 } 3349 3350 /* drag/drop */ 3351 void setLocalDragState(Object obj) { 3352 mLocalDragState = obj; 3353 } 3354 3355 private void handleDragEvent(DragEvent event) { 3356 // From the root, only drag start/end/location are dispatched. entered/exited 3357 // are determined and dispatched by the viewgroup hierarchy, who then report 3358 // that back here for ultimate reporting back to the framework. 3359 if (mView != null && mAdded) { 3360 final int what = event.mAction; 3361 3362 if (what == DragEvent.ACTION_DRAG_EXITED) { 3363 // A direct EXITED event means that the window manager knows we've just crossed 3364 // a window boundary, so the current drag target within this one must have 3365 // just been exited. Send it the usual notifications and then we're done 3366 // for now. 3367 mView.dispatchDragEvent(event); 3368 } else { 3369 // Cache the drag description when the operation starts, then fill it in 3370 // on subsequent calls as a convenience 3371 if (what == DragEvent.ACTION_DRAG_STARTED) { 3372 mCurrentDragView = null; // Start the current-recipient tracking 3373 mDragDescription = event.mClipDescription; 3374 } else { 3375 event.mClipDescription = mDragDescription; 3376 } 3377 3378 // For events with a [screen] location, translate into window coordinates 3379 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3380 mDragPoint.set(event.mX, event.mY); 3381 if (mTranslator != null) { 3382 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3383 } 3384 3385 if (mCurScrollY != 0) { 3386 mDragPoint.offset(0, mCurScrollY); 3387 } 3388 3389 event.mX = mDragPoint.x; 3390 event.mY = mDragPoint.y; 3391 } 3392 3393 // Remember who the current drag target is pre-dispatch 3394 final View prevDragView = mCurrentDragView; 3395 3396 // Now dispatch the drag/drop event 3397 boolean result = mView.dispatchDragEvent(event); 3398 3399 // If we changed apparent drag target, tell the OS about it 3400 if (prevDragView != mCurrentDragView) { 3401 try { 3402 if (prevDragView != null) { 3403 sWindowSession.dragRecipientExited(mWindow); 3404 } 3405 if (mCurrentDragView != null) { 3406 sWindowSession.dragRecipientEntered(mWindow); 3407 } 3408 } catch (RemoteException e) { 3409 Slog.e(TAG, "Unable to note drag target change"); 3410 } 3411 } 3412 3413 // Report the drop result when we're done 3414 if (what == DragEvent.ACTION_DROP) { 3415 mDragDescription = null; 3416 try { 3417 Log.i(TAG, "Reporting drop result: " + result); 3418 sWindowSession.reportDropResult(mWindow, result); 3419 } catch (RemoteException e) { 3420 Log.e(TAG, "Unable to report drop result"); 3421 } 3422 } 3423 3424 // When the drag operation ends, release any local state object 3425 // that may have been in use 3426 if (what == DragEvent.ACTION_DRAG_ENDED) { 3427 setLocalDragState(null); 3428 } 3429 } 3430 } 3431 event.recycle(); 3432 } 3433 3434 public void handleDispatchSystemUiVisibilityChanged(int visibility) { 3435 if (mView == null) return; 3436 if (mAttachInfo != null) { 3437 mAttachInfo.mSystemUiVisibility = visibility; 3438 } 3439 mView.dispatchSystemUiVisibilityChanged(visibility); 3440 } 3441 3442 public void getLastTouchPoint(Point outLocation) { 3443 outLocation.x = (int) mLastTouchPoint.x; 3444 outLocation.y = (int) mLastTouchPoint.y; 3445 } 3446 3447 public void setDragFocus(View newDragTarget) { 3448 if (mCurrentDragView != newDragTarget) { 3449 mCurrentDragView = newDragTarget; 3450 } 3451 } 3452 3453 private AudioManager getAudioManager() { 3454 if (mView == null) { 3455 throw new IllegalStateException("getAudioManager called when there is no mView"); 3456 } 3457 if (mAudioManager == null) { 3458 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3459 } 3460 return mAudioManager; 3461 } 3462 3463 public AccessibilityInteractionController getAccessibilityInteractionController() { 3464 if (mView == null) { 3465 throw new IllegalStateException("getAccessibilityInteractionController" 3466 + " called when there is no mView"); 3467 } 3468 if (mAccessibilityInteractionContrtoller == null) { 3469 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3470 } 3471 return mAccessibilityInteractionContrtoller; 3472 } 3473 3474 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3475 boolean insetsPending) throws RemoteException { 3476 3477 float appScale = mAttachInfo.mApplicationScale; 3478 boolean restore = false; 3479 if (params != null && mTranslator != null) { 3480 restore = true; 3481 params.backup(); 3482 mTranslator.translateWindowLayout(params); 3483 } 3484 if (params != null) { 3485 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3486 } 3487 mPendingConfiguration.seq = 0; 3488 //Log.d(TAG, ">>>>>> CALLING relayout"); 3489 if (params != null && mOrigWindowType != params.type) { 3490 // For compatibility with old apps, don't crash here. 3491 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3492 Slog.w(TAG, "Window type can not be changed after " 3493 + "the window is added; ignoring change of " + mView); 3494 params.type = mOrigWindowType; 3495 } 3496 } 3497 int relayoutResult = sWindowSession.relayout( 3498 mWindow, params, 3499 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3500 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3501 viewVisibility, insetsPending, mWinFrame, 3502 mPendingContentInsets, mPendingVisibleInsets, 3503 mPendingConfiguration, mSurface); 3504 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3505 if (restore) { 3506 params.restore(); 3507 } 3508 3509 if (mTranslator != null) { 3510 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3511 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3512 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3513 } 3514 return relayoutResult; 3515 } 3516 3517 /** 3518 * {@inheritDoc} 3519 */ 3520 public void playSoundEffect(int effectId) { 3521 checkThread(); 3522 3523 try { 3524 final AudioManager audioManager = getAudioManager(); 3525 3526 switch (effectId) { 3527 case SoundEffectConstants.CLICK: 3528 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3529 return; 3530 case SoundEffectConstants.NAVIGATION_DOWN: 3531 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3532 return; 3533 case SoundEffectConstants.NAVIGATION_LEFT: 3534 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3535 return; 3536 case SoundEffectConstants.NAVIGATION_RIGHT: 3537 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3538 return; 3539 case SoundEffectConstants.NAVIGATION_UP: 3540 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3541 return; 3542 default: 3543 throw new IllegalArgumentException("unknown effect id " + effectId + 3544 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3545 } 3546 } catch (IllegalStateException e) { 3547 // Exception thrown by getAudioManager() when mView is null 3548 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3549 e.printStackTrace(); 3550 } 3551 } 3552 3553 /** 3554 * {@inheritDoc} 3555 */ 3556 public boolean performHapticFeedback(int effectId, boolean always) { 3557 try { 3558 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3559 } catch (RemoteException e) { 3560 return false; 3561 } 3562 } 3563 3564 /** 3565 * {@inheritDoc} 3566 */ 3567 public View focusSearch(View focused, int direction) { 3568 checkThread(); 3569 if (!(mView instanceof ViewGroup)) { 3570 return null; 3571 } 3572 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3573 } 3574 3575 public void debug() { 3576 mView.debug(); 3577 } 3578 3579 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3580 if (mView != null) { 3581 getGfxInfo(mView, info); 3582 } else { 3583 info[0] = info[1] = 0; 3584 } 3585 } 3586 3587 private void getGfxInfo(View view, int[] info) { 3588 DisplayList displayList = view.mDisplayList; 3589 info[0]++; 3590 if (displayList != null) { 3591 info[1] += displayList.getSize(); 3592 } 3593 3594 if (view instanceof ViewGroup) { 3595 ViewGroup group = (ViewGroup) view; 3596 3597 int count = group.getChildCount(); 3598 for (int i = 0; i < count; i++) { 3599 getGfxInfo(group.getChildAt(i), info); 3600 } 3601 } 3602 } 3603 3604 public void die(boolean immediate) { 3605 if (immediate) { 3606 doDie(); 3607 } else { 3608 sendEmptyMessage(DIE); 3609 } 3610 } 3611 3612 void doDie() { 3613 checkThread(); 3614 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3615 synchronized (this) { 3616 if (mAdded) { 3617 mAdded = false; 3618 dispatchDetachedFromWindow(); 3619 } 3620 3621 if (mAdded && !mFirst) { 3622 destroyHardwareRenderer(); 3623 3624 int viewVisibility = mView.getVisibility(); 3625 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3626 if (mWindowAttributesChanged || viewVisibilityChanged) { 3627 // If layout params have been changed, first give them 3628 // to the window manager to make sure it has the correct 3629 // animation info. 3630 try { 3631 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3632 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3633 sWindowSession.finishDrawing(mWindow); 3634 } 3635 } catch (RemoteException e) { 3636 } 3637 } 3638 3639 mSurface.release(); 3640 } 3641 } 3642 } 3643 3644 public void requestUpdateConfiguration(Configuration config) { 3645 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3646 sendMessage(msg); 3647 } 3648 3649 private void destroyHardwareRenderer() { 3650 if (mAttachInfo.mHardwareRenderer != null) { 3651 mAttachInfo.mHardwareRenderer.destroy(true); 3652 mAttachInfo.mHardwareRenderer = null; 3653 mAttachInfo.mHardwareAccelerated = false; 3654 } 3655 } 3656 3657 public void dispatchFinishedEvent(int seq, boolean handled) { 3658 Message msg = obtainMessage(FINISHED_EVENT); 3659 msg.arg1 = seq; 3660 msg.arg2 = handled ? 1 : 0; 3661 sendMessage(msg); 3662 } 3663 3664 public void dispatchResized(int w, int h, Rect coveredInsets, 3665 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3666 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3667 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3668 + " visibleInsets=" + visibleInsets.toShortString() 3669 + " reportDraw=" + reportDraw); 3670 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3671 if (mTranslator != null) { 3672 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3673 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3674 w *= mTranslator.applicationInvertedScale; 3675 h *= mTranslator.applicationInvertedScale; 3676 } 3677 msg.arg1 = w; 3678 msg.arg2 = h; 3679 ResizedInfo ri = new ResizedInfo(); 3680 ri.coveredInsets = new Rect(coveredInsets); 3681 ri.visibleInsets = new Rect(visibleInsets); 3682 ri.newConfig = newConfig; 3683 msg.obj = ri; 3684 sendMessage(msg); 3685 } 3686 3687 private long mInputEventReceiveTimeNanos; 3688 private long mInputEventDeliverTimeNanos; 3689 private long mInputEventDeliverPostImeTimeNanos; 3690 private InputQueue.FinishedCallback mFinishedCallback; 3691 3692 private final InputHandler mInputHandler = new InputHandler() { 3693 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3694 startInputEvent(finishedCallback); 3695 dispatchKey(event, true); 3696 } 3697 3698 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3699 startInputEvent(finishedCallback); 3700 dispatchMotion(event, true); 3701 } 3702 }; 3703 3704 public void dispatchKey(KeyEvent event) { 3705 dispatchKey(event, false); 3706 } 3707 3708 private void dispatchKey(KeyEvent event, boolean sendDone) { 3709 //noinspection ConstantConditions 3710 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3711 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3712 if (DBG) Log.d("keydisp", "==================================================="); 3713 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3714 3715 debug(); 3716 3717 if (DBG) Log.d("keydisp", "==================================================="); 3718 } 3719 } 3720 3721 Message msg = obtainMessage(DISPATCH_KEY); 3722 msg.obj = event; 3723 msg.arg1 = sendDone ? 1 : 0; 3724 3725 if (LOCAL_LOGV) Log.v( 3726 TAG, "sending key " + event + " to " + mView); 3727 3728 sendMessageAtTime(msg, event.getEventTime()); 3729 } 3730 3731 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3732 int source = event.getSource(); 3733 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3734 dispatchPointer(event, sendDone); 3735 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3736 dispatchTrackball(event, sendDone); 3737 } else { 3738 dispatchGenericMotion(event, sendDone); 3739 } 3740 } 3741 3742 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3743 Message msg = obtainMessage(DISPATCH_POINTER); 3744 msg.obj = event; 3745 msg.arg1 = sendDone ? 1 : 0; 3746 sendMessageAtTime(msg, event.getEventTime()); 3747 } 3748 3749 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3750 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3751 msg.obj = event; 3752 msg.arg1 = sendDone ? 1 : 0; 3753 sendMessageAtTime(msg, event.getEventTime()); 3754 } 3755 3756 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3757 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3758 msg.obj = event; 3759 msg.arg1 = sendDone ? 1 : 0; 3760 sendMessageAtTime(msg, event.getEventTime()); 3761 } 3762 3763 public void dispatchAppVisibility(boolean visible) { 3764 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3765 msg.arg1 = visible ? 1 : 0; 3766 sendMessage(msg); 3767 } 3768 3769 public void dispatchGetNewSurface() { 3770 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3771 sendMessage(msg); 3772 } 3773 3774 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3775 Message msg = Message.obtain(); 3776 msg.what = WINDOW_FOCUS_CHANGED; 3777 msg.arg1 = hasFocus ? 1 : 0; 3778 msg.arg2 = inTouchMode ? 1 : 0; 3779 sendMessage(msg); 3780 } 3781 3782 public void dispatchCloseSystemDialogs(String reason) { 3783 Message msg = Message.obtain(); 3784 msg.what = CLOSE_SYSTEM_DIALOGS; 3785 msg.obj = reason; 3786 sendMessage(msg); 3787 } 3788 3789 public void dispatchDragEvent(DragEvent event) { 3790 final int what; 3791 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3792 what = DISPATCH_DRAG_LOCATION_EVENT; 3793 removeMessages(what); 3794 } else { 3795 what = DISPATCH_DRAG_EVENT; 3796 } 3797 Message msg = obtainMessage(what, event); 3798 sendMessage(msg); 3799 } 3800 3801 public void dispatchSystemUiVisibilityChanged(int visibility) { 3802 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, visibility, 0)); 3803 } 3804 3805 /** 3806 * The window is getting focus so if there is anything focused/selected 3807 * send an {@link AccessibilityEvent} to announce that. 3808 */ 3809 private void sendAccessibilityEvents() { 3810 if (!mAccessibilityManager.isEnabled()) { 3811 return; 3812 } 3813 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3814 View focusedView = mView.findFocus(); 3815 if (focusedView != null && focusedView != mView) { 3816 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3817 } 3818 } 3819 3820 /** 3821 * Post a callback to send a 3822 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3823 * This event is send at most once every 3824 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3825 */ 3826 private void postSendWindowContentChangedCallback() { 3827 if (mSendWindowContentChangedAccessibilityEvent == null) { 3828 mSendWindowContentChangedAccessibilityEvent = 3829 new SendWindowContentChangedAccessibilityEvent(); 3830 } 3831 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3832 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3833 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3834 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3835 } 3836 } 3837 3838 /** 3839 * Remove a posted callback to send a 3840 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3841 */ 3842 private void removeSendWindowContentChangedCallback() { 3843 if (mSendWindowContentChangedAccessibilityEvent != null) { 3844 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3845 } 3846 } 3847 3848 public boolean showContextMenuForChild(View originalView) { 3849 return false; 3850 } 3851 3852 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3853 return null; 3854 } 3855 3856 public void createContextMenu(ContextMenu menu) { 3857 } 3858 3859 public void childDrawableStateChanged(View child) { 3860 } 3861 3862 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3863 if (mView == null) { 3864 return false; 3865 } 3866 mAccessibilityManager.sendAccessibilityEvent(event); 3867 return true; 3868 } 3869 3870 void checkThread() { 3871 if (mThread != Thread.currentThread()) { 3872 throw new CalledFromWrongThreadException( 3873 "Only the original thread that created a view hierarchy can touch its views."); 3874 } 3875 } 3876 3877 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3878 // ViewAncestor never intercepts touch event, so this can be a no-op 3879 } 3880 3881 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3882 boolean immediate) { 3883 return scrollToRectOrFocus(rectangle, immediate); 3884 } 3885 3886 class TakenSurfaceHolder extends BaseSurfaceHolder { 3887 @Override 3888 public boolean onAllowLockCanvas() { 3889 return mDrawingAllowed; 3890 } 3891 3892 @Override 3893 public void onRelayoutContainer() { 3894 // Not currently interesting -- from changing between fixed and layout size. 3895 } 3896 3897 public void setFormat(int format) { 3898 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3899 } 3900 3901 public void setType(int type) { 3902 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3903 } 3904 3905 @Override 3906 public void onUpdateSurface() { 3907 // We take care of format and type changes on our own. 3908 throw new IllegalStateException("Shouldn't be here"); 3909 } 3910 3911 public boolean isCreating() { 3912 return mIsCreating; 3913 } 3914 3915 @Override 3916 public void setFixedSize(int width, int height) { 3917 throw new UnsupportedOperationException( 3918 "Currently only support sizing from layout"); 3919 } 3920 3921 public void setKeepScreenOn(boolean screenOn) { 3922 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3923 } 3924 } 3925 3926 static class InputMethodCallback extends IInputMethodCallback.Stub { 3927 private WeakReference<ViewRootImpl> mViewAncestor; 3928 3929 public InputMethodCallback(ViewRootImpl viewAncestor) { 3930 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3931 } 3932 3933 public void finishedEvent(int seq, boolean handled) { 3934 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3935 if (viewAncestor != null) { 3936 viewAncestor.dispatchFinishedEvent(seq, handled); 3937 } 3938 } 3939 3940 public void sessionCreated(IInputMethodSession session) { 3941 // Stub -- not for use in the client. 3942 } 3943 } 3944 3945 static class W extends IWindow.Stub { 3946 private final WeakReference<ViewRootImpl> mViewAncestor; 3947 3948 W(ViewRootImpl viewAncestor) { 3949 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3950 } 3951 3952 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 3953 boolean reportDraw, Configuration newConfig) { 3954 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3955 if (viewAncestor != null) { 3956 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 3957 newConfig); 3958 } 3959 } 3960 3961 public void dispatchAppVisibility(boolean visible) { 3962 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3963 if (viewAncestor != null) { 3964 viewAncestor.dispatchAppVisibility(visible); 3965 } 3966 } 3967 3968 public void dispatchGetNewSurface() { 3969 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3970 if (viewAncestor != null) { 3971 viewAncestor.dispatchGetNewSurface(); 3972 } 3973 } 3974 3975 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3976 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3977 if (viewAncestor != null) { 3978 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 3979 } 3980 } 3981 3982 private static int checkCallingPermission(String permission) { 3983 try { 3984 return ActivityManagerNative.getDefault().checkPermission( 3985 permission, Binder.getCallingPid(), Binder.getCallingUid()); 3986 } catch (RemoteException e) { 3987 return PackageManager.PERMISSION_DENIED; 3988 } 3989 } 3990 3991 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 3992 final ViewRootImpl viewAncestor = mViewAncestor.get(); 3993 if (viewAncestor != null) { 3994 final View view = viewAncestor.mView; 3995 if (view != null) { 3996 if (checkCallingPermission(Manifest.permission.DUMP) != 3997 PackageManager.PERMISSION_GRANTED) { 3998 throw new SecurityException("Insufficient permissions to invoke" 3999 + " executeCommand() from pid=" + Binder.getCallingPid() 4000 + ", uid=" + Binder.getCallingUid()); 4001 } 4002 4003 OutputStream clientStream = null; 4004 try { 4005 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4006 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4007 } catch (IOException e) { 4008 e.printStackTrace(); 4009 } finally { 4010 if (clientStream != null) { 4011 try { 4012 clientStream.close(); 4013 } catch (IOException e) { 4014 e.printStackTrace(); 4015 } 4016 } 4017 } 4018 } 4019 } 4020 } 4021 4022 public void closeSystemDialogs(String reason) { 4023 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4024 if (viewAncestor != null) { 4025 viewAncestor.dispatchCloseSystemDialogs(reason); 4026 } 4027 } 4028 4029 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4030 boolean sync) { 4031 if (sync) { 4032 try { 4033 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4034 } catch (RemoteException e) { 4035 } 4036 } 4037 } 4038 4039 public void dispatchWallpaperCommand(String action, int x, int y, 4040 int z, Bundle extras, boolean sync) { 4041 if (sync) { 4042 try { 4043 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4044 } catch (RemoteException e) { 4045 } 4046 } 4047 } 4048 4049 /* Drag/drop */ 4050 public void dispatchDragEvent(DragEvent event) { 4051 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4052 if (viewAncestor != null) { 4053 viewAncestor.dispatchDragEvent(event); 4054 } 4055 } 4056 4057 public void dispatchSystemUiVisibilityChanged(int visibility) { 4058 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4059 if (viewAncestor != null) { 4060 viewAncestor.dispatchSystemUiVisibilityChanged(visibility); 4061 } 4062 } 4063 } 4064 4065 /** 4066 * Maintains state information for a single trackball axis, generating 4067 * discrete (DPAD) movements based on raw trackball motion. 4068 */ 4069 static final class TrackballAxis { 4070 /** 4071 * The maximum amount of acceleration we will apply. 4072 */ 4073 static final float MAX_ACCELERATION = 20; 4074 4075 /** 4076 * The maximum amount of time (in milliseconds) between events in order 4077 * for us to consider the user to be doing fast trackball movements, 4078 * and thus apply an acceleration. 4079 */ 4080 static final long FAST_MOVE_TIME = 150; 4081 4082 /** 4083 * Scaling factor to the time (in milliseconds) between events to how 4084 * much to multiple/divide the current acceleration. When movement 4085 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4086 * FAST_MOVE_TIME it divides it. 4087 */ 4088 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4089 4090 float position; 4091 float absPosition; 4092 float acceleration = 1; 4093 long lastMoveTime = 0; 4094 int step; 4095 int dir; 4096 int nonAccelMovement; 4097 4098 void reset(int _step) { 4099 position = 0; 4100 acceleration = 1; 4101 lastMoveTime = 0; 4102 step = _step; 4103 dir = 0; 4104 } 4105 4106 /** 4107 * Add trackball movement into the state. If the direction of movement 4108 * has been reversed, the state is reset before adding the 4109 * movement (so that you don't have to compensate for any previously 4110 * collected movement before see the result of the movement in the 4111 * new direction). 4112 * 4113 * @return Returns the absolute value of the amount of movement 4114 * collected so far. 4115 */ 4116 float collect(float off, long time, String axis) { 4117 long normTime; 4118 if (off > 0) { 4119 normTime = (long)(off * FAST_MOVE_TIME); 4120 if (dir < 0) { 4121 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4122 position = 0; 4123 step = 0; 4124 acceleration = 1; 4125 lastMoveTime = 0; 4126 } 4127 dir = 1; 4128 } else if (off < 0) { 4129 normTime = (long)((-off) * FAST_MOVE_TIME); 4130 if (dir > 0) { 4131 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4132 position = 0; 4133 step = 0; 4134 acceleration = 1; 4135 lastMoveTime = 0; 4136 } 4137 dir = -1; 4138 } else { 4139 normTime = 0; 4140 } 4141 4142 // The number of milliseconds between each movement that is 4143 // considered "normal" and will not result in any acceleration 4144 // or deceleration, scaled by the offset we have here. 4145 if (normTime > 0) { 4146 long delta = time - lastMoveTime; 4147 lastMoveTime = time; 4148 float acc = acceleration; 4149 if (delta < normTime) { 4150 // The user is scrolling rapidly, so increase acceleration. 4151 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4152 if (scale > 1) acc *= scale; 4153 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4154 + off + " normTime=" + normTime + " delta=" + delta 4155 + " scale=" + scale + " acc=" + acc); 4156 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4157 } else { 4158 // The user is scrolling slowly, so decrease acceleration. 4159 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4160 if (scale > 1) acc /= scale; 4161 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4162 + off + " normTime=" + normTime + " delta=" + delta 4163 + " scale=" + scale + " acc=" + acc); 4164 acceleration = acc > 1 ? acc : 1; 4165 } 4166 } 4167 position += off; 4168 return (absPosition = Math.abs(position)); 4169 } 4170 4171 /** 4172 * Generate the number of discrete movement events appropriate for 4173 * the currently collected trackball movement. 4174 * 4175 * @param precision The minimum movement required to generate the 4176 * first discrete movement. 4177 * 4178 * @return Returns the number of discrete movements, either positive 4179 * or negative, or 0 if there is not enough trackball movement yet 4180 * for a discrete movement. 4181 */ 4182 int generate(float precision) { 4183 int movement = 0; 4184 nonAccelMovement = 0; 4185 do { 4186 final int dir = position >= 0 ? 1 : -1; 4187 switch (step) { 4188 // If we are going to execute the first step, then we want 4189 // to do this as soon as possible instead of waiting for 4190 // a full movement, in order to make things look responsive. 4191 case 0: 4192 if (absPosition < precision) { 4193 return movement; 4194 } 4195 movement += dir; 4196 nonAccelMovement += dir; 4197 step = 1; 4198 break; 4199 // If we have generated the first movement, then we need 4200 // to wait for the second complete trackball motion before 4201 // generating the second discrete movement. 4202 case 1: 4203 if (absPosition < 2) { 4204 return movement; 4205 } 4206 movement += dir; 4207 nonAccelMovement += dir; 4208 position += dir > 0 ? -2 : 2; 4209 absPosition = Math.abs(position); 4210 step = 2; 4211 break; 4212 // After the first two, we generate discrete movements 4213 // consistently with the trackball, applying an acceleration 4214 // if the trackball is moving quickly. This is a simple 4215 // acceleration on top of what we already compute based 4216 // on how quickly the wheel is being turned, to apply 4217 // a longer increasing acceleration to continuous movement 4218 // in one direction. 4219 default: 4220 if (absPosition < 1) { 4221 return movement; 4222 } 4223 movement += dir; 4224 position += dir >= 0 ? -1 : 1; 4225 absPosition = Math.abs(position); 4226 float acc = acceleration; 4227 acc *= 1.1f; 4228 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4229 break; 4230 } 4231 } while (true); 4232 } 4233 } 4234 4235 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4236 public CalledFromWrongThreadException(String msg) { 4237 super(msg); 4238 } 4239 } 4240 4241 private SurfaceHolder mHolder = new SurfaceHolder() { 4242 // we only need a SurfaceHolder for opengl. it would be nice 4243 // to implement everything else though, especially the callback 4244 // support (opengl doesn't make use of it right now, but eventually 4245 // will). 4246 public Surface getSurface() { 4247 return mSurface; 4248 } 4249 4250 public boolean isCreating() { 4251 return false; 4252 } 4253 4254 public void addCallback(Callback callback) { 4255 } 4256 4257 public void removeCallback(Callback callback) { 4258 } 4259 4260 public void setFixedSize(int width, int height) { 4261 } 4262 4263 public void setSizeFromLayout() { 4264 } 4265 4266 public void setFormat(int format) { 4267 } 4268 4269 public void setType(int type) { 4270 } 4271 4272 public void setKeepScreenOn(boolean screenOn) { 4273 } 4274 4275 public Canvas lockCanvas() { 4276 return null; 4277 } 4278 4279 public Canvas lockCanvas(Rect dirty) { 4280 return null; 4281 } 4282 4283 public void unlockCanvasAndPost(Canvas canvas) { 4284 } 4285 public Rect getSurfaceFrame() { 4286 return null; 4287 } 4288 }; 4289 4290 static RunQueue getRunQueue() { 4291 RunQueue rq = sRunQueues.get(); 4292 if (rq != null) { 4293 return rq; 4294 } 4295 rq = new RunQueue(); 4296 sRunQueues.set(rq); 4297 return rq; 4298 } 4299 4300 /** 4301 * @hide 4302 */ 4303 static final class RunQueue { 4304 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4305 4306 void post(Runnable action) { 4307 postDelayed(action, 0); 4308 } 4309 4310 void postDelayed(Runnable action, long delayMillis) { 4311 HandlerAction handlerAction = new HandlerAction(); 4312 handlerAction.action = action; 4313 handlerAction.delay = delayMillis; 4314 4315 synchronized (mActions) { 4316 mActions.add(handlerAction); 4317 } 4318 } 4319 4320 void removeCallbacks(Runnable action) { 4321 final HandlerAction handlerAction = new HandlerAction(); 4322 handlerAction.action = action; 4323 4324 synchronized (mActions) { 4325 final ArrayList<HandlerAction> actions = mActions; 4326 4327 while (actions.remove(handlerAction)) { 4328 // Keep going 4329 } 4330 } 4331 } 4332 4333 void executeActions(Handler handler) { 4334 synchronized (mActions) { 4335 final ArrayList<HandlerAction> actions = mActions; 4336 final int count = actions.size(); 4337 4338 for (int i = 0; i < count; i++) { 4339 final HandlerAction handlerAction = actions.get(i); 4340 handler.postDelayed(handlerAction.action, handlerAction.delay); 4341 } 4342 4343 actions.clear(); 4344 } 4345 } 4346 4347 private static class HandlerAction { 4348 Runnable action; 4349 long delay; 4350 4351 @Override 4352 public boolean equals(Object o) { 4353 if (this == o) return true; 4354 if (o == null || getClass() != o.getClass()) return false; 4355 4356 HandlerAction that = (HandlerAction) o; 4357 return !(action != null ? !action.equals(that.action) : that.action != null); 4358 4359 } 4360 4361 @Override 4362 public int hashCode() { 4363 int result = action != null ? action.hashCode() : 0; 4364 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4365 return result; 4366 } 4367 } 4368 } 4369 4370 /** 4371 * Class for managing the accessibility interaction connection 4372 * based on the global accessibility state. 4373 */ 4374 final class AccessibilityInteractionConnectionManager 4375 implements AccessibilityStateChangeListener { 4376 public void onAccessibilityStateChanged(boolean enabled) { 4377 if (enabled) { 4378 ensureConnection(); 4379 } else { 4380 ensureNoConnection(); 4381 } 4382 } 4383 4384 public void ensureConnection() { 4385 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4386 if (!registered) { 4387 mAttachInfo.mAccessibilityWindowId = 4388 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4389 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4390 } 4391 } 4392 4393 public void ensureNoConnection() { 4394 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4395 if (registered) { 4396 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4397 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4398 } 4399 } 4400 } 4401 4402 /** 4403 * This class is an interface this ViewAncestor provides to the 4404 * AccessibilityManagerService to the latter can interact with 4405 * the view hierarchy in this ViewAncestor. 4406 */ 4407 final class AccessibilityInteractionConnection 4408 extends IAccessibilityInteractionConnection.Stub { 4409 private final WeakReference<ViewRootImpl> mViewAncestor; 4410 4411 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4412 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4413 } 4414 4415 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4416 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4417 int interrogatingPid, long interrogatingTid) { 4418 if (mViewAncestor.get() != null) { 4419 getAccessibilityInteractionController() 4420 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4421 interactionId, callback, interrogatingPid, interrogatingTid); 4422 } 4423 } 4424 4425 public void performAccessibilityAction(int accessibilityId, int action, 4426 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4427 int interogatingPid, long interrogatingTid) { 4428 if (mViewAncestor.get() != null) { 4429 getAccessibilityInteractionController() 4430 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4431 callback, interogatingPid, interrogatingTid); 4432 } 4433 } 4434 4435 public void findAccessibilityNodeInfoByViewId(int viewId, 4436 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4437 int interrogatingPid, long interrogatingTid) { 4438 if (mViewAncestor.get() != null) { 4439 getAccessibilityInteractionController() 4440 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4441 interrogatingPid, interrogatingTid); 4442 } 4443 } 4444 4445 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4446 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4447 int interrogatingPid, long interrogatingTid) { 4448 if (mViewAncestor.get() != null) { 4449 getAccessibilityInteractionController() 4450 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4451 interactionId, callback, interrogatingPid, interrogatingTid); 4452 } 4453 } 4454 } 4455 4456 /** 4457 * Class for managing accessibility interactions initiated from the system 4458 * and targeting the view hierarchy. A *ClientThread method is to be 4459 * called from the interaction connection this ViewAncestor gives the 4460 * system to talk to it and a corresponding *UiThread method that is executed 4461 * on the UI thread. 4462 */ 4463 final class AccessibilityInteractionController { 4464 private static final int POOL_SIZE = 5; 4465 4466 private FindByAccessibilitytIdPredicate mFindByAccessibilityIdPredicate = 4467 new FindByAccessibilitytIdPredicate(); 4468 4469 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4470 new ArrayList<AccessibilityNodeInfo>(); 4471 4472 // Reusable poolable arguments for interacting with the view hierarchy 4473 // to fit more arguments than Message and to avoid sharing objects between 4474 // two messages since several threads can send messages concurrently. 4475 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4476 new PoolableManager<SomeArgs>() { 4477 public SomeArgs newInstance() { 4478 return new SomeArgs(); 4479 } 4480 4481 public void onAcquired(SomeArgs info) { 4482 /* do nothing */ 4483 } 4484 4485 public void onReleased(SomeArgs info) { 4486 info.clear(); 4487 } 4488 }, POOL_SIZE) 4489 ); 4490 4491 public class SomeArgs implements Poolable<SomeArgs> { 4492 private SomeArgs mNext; 4493 private boolean mIsPooled; 4494 4495 public Object arg1; 4496 public Object arg2; 4497 public int argi1; 4498 public int argi2; 4499 public int argi3; 4500 4501 public SomeArgs getNextPoolable() { 4502 return mNext; 4503 } 4504 4505 public boolean isPooled() { 4506 return mIsPooled; 4507 } 4508 4509 public void setNextPoolable(SomeArgs args) { 4510 mNext = args; 4511 } 4512 4513 public void setPooled(boolean isPooled) { 4514 mIsPooled = isPooled; 4515 } 4516 4517 private void clear() { 4518 arg1 = null; 4519 arg2 = null; 4520 argi1 = 0; 4521 argi2 = 0; 4522 argi3 = 0; 4523 } 4524 } 4525 4526 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4527 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4528 int interrogatingPid, long interrogatingTid) { 4529 Message message = Message.obtain(); 4530 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4531 message.arg1 = accessibilityId; 4532 message.arg2 = interactionId; 4533 message.obj = callback; 4534 // If the interrogation is performed by the same thread as the main UI 4535 // thread in this process, set the message as a static reference so 4536 // after this call completes the same thread but in the interrogating 4537 // client can handle the message to generate the result. 4538 if (interrogatingPid == Process.myPid() 4539 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4540 message.setTarget(ViewRootImpl.this); 4541 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4542 } else { 4543 sendMessage(message); 4544 } 4545 } 4546 4547 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4548 final int accessibilityId = message.arg1; 4549 final int interactionId = message.arg2; 4550 final IAccessibilityInteractionConnectionCallback callback = 4551 (IAccessibilityInteractionConnectionCallback) message.obj; 4552 4553 AccessibilityNodeInfo info = null; 4554 try { 4555 FindByAccessibilitytIdPredicate predicate = mFindByAccessibilityIdPredicate; 4556 predicate.init(accessibilityId); 4557 View root = ViewRootImpl.this.mView; 4558 View target = root.findViewByPredicate(predicate); 4559 if (target != null && target.getVisibility() == View.VISIBLE) { 4560 info = target.createAccessibilityNodeInfo(); 4561 } 4562 } finally { 4563 try { 4564 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4565 } catch (RemoteException re) { 4566 /* ignore - the other side will time out */ 4567 } 4568 } 4569 } 4570 4571 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4572 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4573 long interrogatingTid) { 4574 Message message = Message.obtain(); 4575 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4576 message.arg1 = viewId; 4577 message.arg2 = interactionId; 4578 message.obj = callback; 4579 // If the interrogation is performed by the same thread as the main UI 4580 // thread in this process, set the message as a static reference so 4581 // after this call completes the same thread but in the interrogating 4582 // client can handle the message to generate the result. 4583 if (interrogatingPid == Process.myPid() 4584 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4585 message.setTarget(ViewRootImpl.this); 4586 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4587 } else { 4588 sendMessage(message); 4589 } 4590 } 4591 4592 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4593 final int viewId = message.arg1; 4594 final int interactionId = message.arg2; 4595 final IAccessibilityInteractionConnectionCallback callback = 4596 (IAccessibilityInteractionConnectionCallback) message.obj; 4597 4598 AccessibilityNodeInfo info = null; 4599 try { 4600 View root = ViewRootImpl.this.mView; 4601 View target = root.findViewById(viewId); 4602 if (target != null && target.getVisibility() == View.VISIBLE) { 4603 info = target.createAccessibilityNodeInfo(); 4604 } 4605 } finally { 4606 try { 4607 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4608 } catch (RemoteException re) { 4609 /* ignore - the other side will time out */ 4610 } 4611 } 4612 } 4613 4614 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4615 int accessibilityViewId, int interactionId, 4616 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4617 long interrogatingTid) { 4618 Message message = Message.obtain(); 4619 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4620 SomeArgs args = mPool.acquire(); 4621 args.arg1 = text; 4622 args.argi1 = accessibilityViewId; 4623 args.argi2 = interactionId; 4624 args.arg2 = callback; 4625 message.obj = args; 4626 // If the interrogation is performed by the same thread as the main UI 4627 // thread in this process, set the message as a static reference so 4628 // after this call completes the same thread but in the interrogating 4629 // client can handle the message to generate the result. 4630 if (interrogatingPid == Process.myPid() 4631 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4632 message.setTarget(ViewRootImpl.this); 4633 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4634 } else { 4635 sendMessage(message); 4636 } 4637 } 4638 4639 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4640 SomeArgs args = (SomeArgs) message.obj; 4641 final String text = (String) args.arg1; 4642 final int accessibilityViewId = args.argi1; 4643 final int interactionId = args.argi2; 4644 final IAccessibilityInteractionConnectionCallback callback = 4645 (IAccessibilityInteractionConnectionCallback) args.arg2; 4646 mPool.release(args); 4647 4648 List<AccessibilityNodeInfo> infos = null; 4649 try { 4650 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4651 foundViews.clear(); 4652 4653 View root = null; 4654 if (accessibilityViewId != View.NO_ID) { 4655 root = findViewByAccessibilityId(accessibilityViewId); 4656 } else { 4657 root = ViewRootImpl.this.mView; 4658 } 4659 4660 if (root == null || root.getVisibility() != View.VISIBLE) { 4661 return; 4662 } 4663 4664 root.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4665 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION); 4666 if (foundViews.isEmpty()) { 4667 return; 4668 } 4669 4670 infos = mTempAccessibilityNodeInfoList; 4671 infos.clear(); 4672 4673 final int viewCount = foundViews.size(); 4674 for (int i = 0; i < viewCount; i++) { 4675 View foundView = foundViews.get(i); 4676 if (foundView.getVisibility() == View.VISIBLE) { 4677 infos.add(foundView.createAccessibilityNodeInfo()); 4678 } 4679 } 4680 } finally { 4681 try { 4682 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4683 } catch (RemoteException re) { 4684 /* ignore - the other side will time out */ 4685 } 4686 } 4687 } 4688 4689 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4690 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4691 int interogatingPid, long interrogatingTid) { 4692 Message message = Message.obtain(); 4693 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4694 SomeArgs args = mPool.acquire(); 4695 args.argi1 = accessibilityId; 4696 args.argi2 = action; 4697 args.argi3 = interactionId; 4698 args.arg1 = callback; 4699 message.obj = args; 4700 // If the interrogation is performed by the same thread as the main UI 4701 // thread in this process, set the message as a static reference so 4702 // after this call completes the same thread but in the interrogating 4703 // client can handle the message to generate the result. 4704 if (interogatingPid == Process.myPid() 4705 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4706 message.setTarget(ViewRootImpl.this); 4707 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4708 } else { 4709 sendMessage(message); 4710 } 4711 } 4712 4713 public void perfromAccessibilityActionUiThread(Message message) { 4714 SomeArgs args = (SomeArgs) message.obj; 4715 final int accessibilityId = args.argi1; 4716 final int action = args.argi2; 4717 final int interactionId = args.argi3; 4718 final IAccessibilityInteractionConnectionCallback callback = 4719 (IAccessibilityInteractionConnectionCallback) args.arg1; 4720 mPool.release(args); 4721 4722 boolean succeeded = false; 4723 try { 4724 switch (action) { 4725 case AccessibilityNodeInfo.ACTION_FOCUS: { 4726 succeeded = performActionFocus(accessibilityId); 4727 } break; 4728 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4729 succeeded = performActionClearFocus(accessibilityId); 4730 } break; 4731 case AccessibilityNodeInfo.ACTION_SELECT: { 4732 succeeded = performActionSelect(accessibilityId); 4733 } break; 4734 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4735 succeeded = performActionClearSelection(accessibilityId); 4736 } break; 4737 } 4738 } finally { 4739 try { 4740 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4741 } catch (RemoteException re) { 4742 /* ignore - the other side will time out */ 4743 } 4744 } 4745 } 4746 4747 private boolean performActionFocus(int accessibilityId) { 4748 View target = findViewByAccessibilityId(accessibilityId); 4749 if (target == null || target.getVisibility() != View.VISIBLE) { 4750 return false; 4751 } 4752 // Get out of touch mode since accessibility wants to move focus around. 4753 ensureTouchMode(false); 4754 return target.requestFocus(); 4755 } 4756 4757 private boolean performActionClearFocus(int accessibilityId) { 4758 View target = findViewByAccessibilityId(accessibilityId); 4759 if (target == null || target.getVisibility() != View.VISIBLE) { 4760 return false; 4761 } 4762 if (!target.isFocused()) { 4763 return false; 4764 } 4765 target.clearFocus(); 4766 return !target.isFocused(); 4767 } 4768 4769 private boolean performActionSelect(int accessibilityId) { 4770 View target = findViewByAccessibilityId(accessibilityId); 4771 if (target == null || target.getVisibility() != View.VISIBLE) { 4772 return false; 4773 } 4774 if (target.isSelected()) { 4775 return false; 4776 } 4777 target.setSelected(true); 4778 return target.isSelected(); 4779 } 4780 4781 private boolean performActionClearSelection(int accessibilityId) { 4782 View target = findViewByAccessibilityId(accessibilityId); 4783 if (target == null || target.getVisibility() != View.VISIBLE) { 4784 return false; 4785 } 4786 if (!target.isSelected()) { 4787 return false; 4788 } 4789 target.setSelected(false); 4790 return !target.isSelected(); 4791 } 4792 4793 private View findViewByAccessibilityId(int accessibilityId) { 4794 View root = ViewRootImpl.this.mView; 4795 if (root == null) { 4796 return null; 4797 } 4798 mFindByAccessibilityIdPredicate.init(accessibilityId); 4799 View foundView = root.findViewByPredicate(mFindByAccessibilityIdPredicate); 4800 if (foundView == null || foundView.getVisibility() != View.VISIBLE) { 4801 return null; 4802 } 4803 return foundView; 4804 } 4805 4806 private final class FindByAccessibilitytIdPredicate implements Predicate<View> { 4807 public int mSearchedId; 4808 4809 public void init(int searchedId) { 4810 mSearchedId = searchedId; 4811 } 4812 4813 public boolean apply(View view) { 4814 return (view.getAccessibilityViewId() == mSearchedId); 4815 } 4816 } 4817 } 4818 4819 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4820 public volatile boolean mIsPending; 4821 4822 public void run() { 4823 if (mView != null) { 4824 // Check again for accessibility state since this is executed delayed. 4825 AccessibilityManager accessibilityManager = 4826 AccessibilityManager.getInstance(mView.mContext); 4827 if (accessibilityManager.isEnabled()) { 4828 // Send the event directly since we do not want to append the 4829 // source text because this is the text for the entire window 4830 // and we just want to notify that the content has changed. 4831 AccessibilityEvent event = AccessibilityEvent.obtain( 4832 AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4833 mView.onInitializeAccessibilityEvent(event); 4834 accessibilityManager.sendAccessibilityEvent(event); 4835 } 4836 mIsPending = false; 4837 } 4838 } 4839 } 4840} 4841