ViewRootImpl.java revision 908aecc3a63c5520d5b11da14a9383f885b7d126
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.animation.ValueAnimator; 22import android.app.ActivityManagerNative; 23import android.content.ClipDescription; 24import android.content.ComponentCallbacks; 25import android.content.ComponentCallbacks2; 26import android.content.Context; 27import android.content.pm.ApplicationInfo; 28import android.content.pm.PackageManager; 29import android.content.res.CompatibilityInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.graphics.Canvas; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.Region; 40import android.graphics.drawable.Drawable; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.LatencyTimer; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.PowerManager; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemClock; 54import android.os.SystemProperties; 55import android.os.Trace; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.Log; 59import android.util.Slog; 60import android.util.TypedValue; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityNodeInfo; 67import android.view.accessibility.AccessibilityNodeProvider; 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.R; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerImpl}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static IWindowSession sWindowSession; 129 130 static final Object mStaticInit = new Object(); 131 static boolean mInitialized = false; 132 133 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 134 135 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 136 static boolean sFirstDrawComplete = false; 137 138 static final ArrayList<ComponentCallbacks> sConfigCallbacks 139 = new ArrayList<ComponentCallbacks>(); 140 141 private static boolean sUseRenderThread = false; 142 private static boolean sRenderThreadQueried = false; 143 private static final Object[] sRenderThreadQueryLock = new Object[0]; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 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 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 boolean mFitSystemWindowsRequested; 220 boolean mLayoutRequested; 221 boolean mFirst; 222 boolean mReportNextDraw; 223 boolean mFullRedrawNeeded; 224 boolean mNewSurfaceNeeded; 225 boolean mHasHadWindowFocus; 226 boolean mLastWasImTarget; 227 boolean mWindowsAnimating; 228 boolean mIsDrawing; 229 int mLastSystemUiVisibility; 230 int mClientWindowLayoutFlags; 231 232 // Pool of queued input events. 233 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 234 private QueuedInputEvent mQueuedInputEventPool; 235 private int mQueuedInputEventPoolSize; 236 237 // Input event queue. 238 QueuedInputEvent mFirstPendingInputEvent; 239 QueuedInputEvent mCurrentInputEvent; 240 boolean mProcessInputEventsScheduled; 241 242 boolean mWindowAttributesChanged = false; 243 int mWindowAttributesChangesFlag = 0; 244 245 // These can be accessed by any thread, must be protected with a lock. 246 // Surface can never be reassigned or cleared (use Surface.clear()). 247 private final Surface mSurface = new Surface(); 248 249 boolean mAdded; 250 boolean mAddedTouchMode; 251 252 CompatibilityInfoHolder mCompatibilityInfo; 253 254 // These are accessed by multiple threads. 255 final Rect mWinFrame; // frame given by window manager. 256 257 final Rect mPendingVisibleInsets = new Rect(); 258 final Rect mPendingContentInsets = new Rect(); 259 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 260 = new ViewTreeObserver.InternalInsetsInfo(); 261 262 final Rect mFitSystemWindowsInsets = new Rect(); 263 264 final Configuration mLastConfiguration = new Configuration(); 265 final Configuration mPendingConfiguration = new Configuration(); 266 267 class ResizedInfo { 268 Rect contentInsets; 269 Rect visibleInsets; 270 Configuration newConfig; 271 } 272 273 boolean mScrollMayChange; 274 int mSoftInputMode; 275 View mLastScrolledFocus; 276 int mScrollY; 277 int mCurScrollY; 278 Scroller mScroller; 279 HardwareLayer mResizeBuffer; 280 long mResizeBufferStartTime; 281 int mResizeBufferDuration; 282 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 283 private ArrayList<LayoutTransition> mPendingTransitions; 284 285 final ViewConfiguration mViewConfiguration; 286 287 /* Drag/drop */ 288 ClipDescription mDragDescription; 289 View mCurrentDragView; 290 volatile Object mLocalDragState; 291 final PointF mDragPoint = new PointF(); 292 final PointF mLastTouchPoint = new PointF(); 293 294 private boolean mProfileRendering; 295 private Thread mRenderProfiler; 296 private volatile boolean mRenderProfilingEnabled; 297 298 // Variables to track frames per second, enabled via DEBUG_FPS flag 299 private long mFpsStartTime = -1; 300 private long mFpsPrevTime = -1; 301 private int mFpsNumFrames; 302 303 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 304 305 /** 306 * see {@link #playSoundEffect(int)} 307 */ 308 AudioManager mAudioManager; 309 310 final AccessibilityManager mAccessibilityManager; 311 312 AccessibilityInteractionController mAccessibilityInteractionController; 313 314 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 315 316 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 317 318 HashSet<View> mTempHashSet; 319 320 private final int mDensity; 321 private final int mNoncompatDensity; 322 323 /** 324 * Consistency verifier for debugging purposes. 325 */ 326 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 327 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 328 new InputEventConsistencyVerifier(this, 0) : null; 329 330 public static IWindowSession getWindowSession(Looper mainLooper) { 331 synchronized (mStaticInit) { 332 if (!mInitialized) { 333 try { 334 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 335 IWindowManager windowManager = WindowManagerImpl.getWindowManagerService(); 336 sWindowSession = windowManager.openSession( 337 imm.getClient(), imm.getInputContext()); 338 float animatorScale = windowManager.getAnimationScale(2); 339 ValueAnimator.setDurationScale(animatorScale); 340 mInitialized = true; 341 } catch (RemoteException e) { 342 } 343 } 344 return sWindowSession; 345 } 346 } 347 348 static final class SystemUiVisibilityInfo { 349 int seq; 350 int globalVisibility; 351 int localValue; 352 int localChanges; 353 } 354 355 public ViewRootImpl(Context context) { 356 super(); 357 358 if (MEASURE_LATENCY) { 359 if (lt == null) { 360 lt = new LatencyTimer(100, 1000); 361 } 362 } 363 364 // Initialize the statics when this class is first instantiated. This is 365 // done here instead of in the static block because Zygote does not 366 // allow the spawning of threads. 367 getWindowSession(context.getMainLooper()); 368 369 mThread = Thread.currentThread(); 370 mLocation = new WindowLeaked(null); 371 mLocation.fillInStackTrace(); 372 mWidth = -1; 373 mHeight = -1; 374 mDirty = new Rect(); 375 mTempRect = new Rect(); 376 mVisRect = new Rect(); 377 mWinFrame = new Rect(); 378 mWindow = new W(this); 379 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 380 mInputMethodCallback = new InputMethodCallback(this); 381 mViewVisibility = View.GONE; 382 mTransparentRegion = new Region(); 383 mPreviousTransparentRegion = new Region(); 384 mFirst = true; // true for the first time the view is added 385 mAdded = false; 386 mAccessibilityManager = AccessibilityManager.getInstance(context); 387 mAccessibilityInteractionConnectionManager = 388 new AccessibilityInteractionConnectionManager(); 389 mAccessibilityManager.addAccessibilityStateChangeListener( 390 mAccessibilityInteractionConnectionManager); 391 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 392 mViewConfiguration = ViewConfiguration.get(context); 393 mDensity = context.getResources().getDisplayMetrics().densityDpi; 394 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 395 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 396 mProfileRendering = Boolean.parseBoolean( 397 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 398 mChoreographer = Choreographer.getInstance(); 399 400 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 401 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 402 loadSystemProperties(); 403 } 404 405 /** 406 * @return True if the application requests the use of a separate render thread, 407 * false otherwise 408 */ 409 private static boolean isRenderThreadRequested(Context context) { 410 if (USE_RENDER_THREAD) { 411 synchronized (sRenderThreadQueryLock) { 412 if (!sRenderThreadQueried) { 413 final PackageManager packageManager = context.getPackageManager(); 414 final String packageName = context.getApplicationInfo().packageName; 415 try { 416 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 417 PackageManager.GET_META_DATA); 418 if (applicationInfo.metaData != null) { 419 sUseRenderThread = applicationInfo.metaData.getBoolean( 420 "android.graphics.renderThread", false); 421 } 422 } catch (PackageManager.NameNotFoundException e) { 423 } finally { 424 sRenderThreadQueried = true; 425 } 426 } 427 return sUseRenderThread; 428 } 429 } else { 430 return false; 431 } 432 } 433 434 public static void addFirstDrawHandler(Runnable callback) { 435 synchronized (sFirstDrawHandlers) { 436 if (!sFirstDrawComplete) { 437 sFirstDrawHandlers.add(callback); 438 } 439 } 440 } 441 442 public static void addConfigCallback(ComponentCallbacks callback) { 443 synchronized (sConfigCallbacks) { 444 sConfigCallbacks.add(callback); 445 } 446 } 447 448 // FIXME for perf testing only 449 private boolean mProfile = false; 450 451 /** 452 * Call this to profile the next traversal call. 453 * FIXME for perf testing only. Remove eventually 454 */ 455 public void profile() { 456 mProfile = true; 457 } 458 459 /** 460 * Indicates whether we are in touch mode. Calling this method triggers an IPC 461 * call and should be avoided whenever possible. 462 * 463 * @return True, if the device is in touch mode, false otherwise. 464 * 465 * @hide 466 */ 467 static boolean isInTouchMode() { 468 if (mInitialized) { 469 try { 470 return sWindowSession.getInTouchMode(); 471 } catch (RemoteException e) { 472 } 473 } 474 return false; 475 } 476 477 /** 478 * We have one child 479 */ 480 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 481 synchronized (this) { 482 if (mView == null) { 483 mView = view; 484 mFallbackEventHandler.setView(view); 485 mWindowAttributes.copyFrom(attrs); 486 attrs = mWindowAttributes; 487 // Keep track of the actual window flags supplied by the client. 488 mClientWindowLayoutFlags = attrs.flags; 489 490 setAccessibilityFocus(null, null); 491 492 if (view instanceof RootViewSurfaceTaker) { 493 mSurfaceHolderCallback = 494 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 495 if (mSurfaceHolderCallback != null) { 496 mSurfaceHolder = new TakenSurfaceHolder(); 497 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 498 } 499 } 500 501 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 502 mTranslator = compatibilityInfo.getTranslator(); 503 504 // If the application owns the surface, don't enable hardware acceleration 505 if (mSurfaceHolder == null) { 506 enableHardwareAcceleration(mView.getContext(), attrs); 507 } 508 509 boolean restore = false; 510 if (mTranslator != null) { 511 mSurface.setCompatibilityTranslator(mTranslator); 512 restore = true; 513 attrs.backup(); 514 mTranslator.translateWindowLayout(attrs); 515 } 516 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 517 518 if (!compatibilityInfo.supportsScreen()) { 519 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 520 mLastInCompatMode = true; 521 } 522 523 mSoftInputMode = attrs.softInputMode; 524 mWindowAttributesChanged = true; 525 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 526 mAttachInfo.mRootView = view; 527 mAttachInfo.mScalingRequired = mTranslator != null; 528 mAttachInfo.mApplicationScale = 529 mTranslator == null ? 1.0f : mTranslator.applicationScale; 530 if (panelParentView != null) { 531 mAttachInfo.mPanelParentWindowToken 532 = panelParentView.getApplicationWindowToken(); 533 } 534 mAdded = true; 535 int res; /* = WindowManagerImpl.ADD_OKAY; */ 536 537 // Schedule the first layout -before- adding to the window 538 // manager, to make sure we do the relayout before receiving 539 // any other events from the system. 540 requestLayout(); 541 if ((mWindowAttributes.inputFeatures 542 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 543 mInputChannel = new InputChannel(); 544 } 545 try { 546 mOrigWindowType = mWindowAttributes.type; 547 mAttachInfo.mRecomputeGlobalAttributes = true; 548 collectViewAttributes(); 549 res = sWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 550 getHostVisibility(), Display.DEFAULT_DISPLAY, 551 mAttachInfo.mContentInsets, mInputChannel); 552 } catch (RemoteException e) { 553 mAdded = false; 554 mView = null; 555 mAttachInfo.mRootView = null; 556 mInputChannel = null; 557 mFallbackEventHandler.setView(null); 558 unscheduleTraversals(); 559 setAccessibilityFocus(null, null); 560 throw new RuntimeException("Adding window failed", e); 561 } finally { 562 if (restore) { 563 attrs.restore(); 564 } 565 } 566 567 if (mTranslator != null) { 568 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 569 } 570 mPendingContentInsets.set(mAttachInfo.mContentInsets); 571 mPendingVisibleInsets.set(0, 0, 0, 0); 572 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 573 if (res < WindowManagerImpl.ADD_OKAY) { 574 mView = null; 575 mAttachInfo.mRootView = null; 576 mAdded = false; 577 mFallbackEventHandler.setView(null); 578 unscheduleTraversals(); 579 setAccessibilityFocus(null, null); 580 switch (res) { 581 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 582 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 583 throw new WindowManagerImpl.BadTokenException( 584 "Unable to add window -- token " + attrs.token 585 + " is not valid; is your activity running?"); 586 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 587 throw new WindowManagerImpl.BadTokenException( 588 "Unable to add window -- token " + attrs.token 589 + " is not for an application"); 590 case WindowManagerImpl.ADD_APP_EXITING: 591 throw new WindowManagerImpl.BadTokenException( 592 "Unable to add window -- app for token " + attrs.token 593 + " is exiting"); 594 case WindowManagerImpl.ADD_DUPLICATE_ADD: 595 throw new WindowManagerImpl.BadTokenException( 596 "Unable to add window -- window " + mWindow 597 + " has already been added"); 598 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 599 // Silently ignore -- we would have just removed it 600 // right away, anyway. 601 return; 602 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 603 throw new WindowManagerImpl.BadTokenException( 604 "Unable to add window " + mWindow + 605 " -- another window of this type already exists"); 606 case WindowManagerImpl.ADD_PERMISSION_DENIED: 607 throw new WindowManagerImpl.BadTokenException( 608 "Unable to add window " + mWindow + 609 " -- permission denied for this window type"); 610 } 611 throw new RuntimeException( 612 "Unable to add window -- unknown error code " + res); 613 } 614 615 if (view instanceof RootViewSurfaceTaker) { 616 mInputQueueCallback = 617 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 618 } 619 if (mInputChannel != null) { 620 if (mInputQueueCallback != null) { 621 mInputQueue = new InputQueue(mInputChannel); 622 mInputQueueCallback.onInputQueueCreated(mInputQueue); 623 } else { 624 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 625 Looper.myLooper()); 626 } 627 } 628 629 view.assignParent(this); 630 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 631 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 632 633 if (mAccessibilityManager.isEnabled()) { 634 mAccessibilityInteractionConnectionManager.ensureConnection(); 635 } 636 637 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 638 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 639 } 640 } 641 } 642 } 643 644 void destroyHardwareResources() { 645 if (mAttachInfo.mHardwareRenderer != null) { 646 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 647 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 648 } 649 mAttachInfo.mHardwareRenderer.destroy(false); 650 } 651 } 652 653 void terminateHardwareResources() { 654 if (mAttachInfo.mHardwareRenderer != null) { 655 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 656 mAttachInfo.mHardwareRenderer.destroy(false); 657 } 658 } 659 660 void destroyHardwareLayers() { 661 if (mThread != Thread.currentThread()) { 662 if (mAttachInfo.mHardwareRenderer != null && 663 mAttachInfo.mHardwareRenderer.isEnabled()) { 664 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 665 } 666 } else { 667 if (mAttachInfo.mHardwareRenderer != null && 668 mAttachInfo.mHardwareRenderer.isEnabled()) { 669 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 670 } 671 } 672 } 673 674 public boolean attachFunctor(int functor) { 675 //noinspection SimplifiableIfStatement 676 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 677 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 678 } 679 return false; 680 } 681 682 public void detachFunctor(int functor) { 683 if (mAttachInfo.mHardwareRenderer != null) { 684 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 685 } 686 } 687 688 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 689 mAttachInfo.mHardwareAccelerated = false; 690 mAttachInfo.mHardwareAccelerationRequested = false; 691 692 // Don't enable hardware acceleration when the application is in compatibility mode 693 if (mTranslator != null) return; 694 695 // Try to enable hardware acceleration if requested 696 final boolean hardwareAccelerated = 697 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 698 699 if (hardwareAccelerated) { 700 if (!HardwareRenderer.isAvailable()) { 701 return; 702 } 703 704 // Persistent processes (including the system) should not do 705 // accelerated rendering on low-end devices. In that case, 706 // sRendererDisabled will be set. In addition, the system process 707 // itself should never do accelerated rendering. In that case, both 708 // sRendererDisabled and sSystemRendererDisabled are set. When 709 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 710 // can be used by code on the system process to escape that and enable 711 // HW accelerated drawing. (This is basically for the lock screen.) 712 713 final boolean fakeHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 715 final boolean forceHwAccelerated = (attrs.privateFlags & 716 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 717 718 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 719 && forceHwAccelerated)) { 720 // Don't enable hardware acceleration when we're not on the main thread 721 if (!HardwareRenderer.sSystemRendererDisabled && 722 Looper.getMainLooper() != Looper.myLooper()) { 723 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 724 + "acceleration outside of the main thread, aborting"); 725 return; 726 } 727 728 final boolean renderThread = isRenderThreadRequested(context); 729 if (renderThread) { 730 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 731 } 732 733 if (mAttachInfo.mHardwareRenderer != null) { 734 mAttachInfo.mHardwareRenderer.destroy(true); 735 } 736 737 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 738 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 739 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 740 = mAttachInfo.mHardwareRenderer != null; 741 742 } else if (fakeHwAccelerated) { 743 // The window had wanted to use hardware acceleration, but this 744 // is not allowed in its process. By setting this flag, it can 745 // still render as if it was accelerated. This is basically for 746 // the preview windows the window manager shows for launching 747 // applications, so they will look more like the app being launched. 748 mAttachInfo.mHardwareAccelerationRequested = true; 749 } 750 } 751 } 752 753 public View getView() { 754 return mView; 755 } 756 757 final WindowLeaked getLocation() { 758 return mLocation; 759 } 760 761 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 762 synchronized (this) { 763 int oldSoftInputMode = mWindowAttributes.softInputMode; 764 // Keep track of the actual window flags supplied by the client. 765 mClientWindowLayoutFlags = attrs.flags; 766 // preserve compatible window flag if exists. 767 int compatibleWindowFlag = 768 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 769 // transfer over system UI visibility values as they carry current state. 770 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 771 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 772 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 773 mWindowAttributes.flags |= compatibleWindowFlag; 774 775 applyKeepScreenOnFlag(mWindowAttributes); 776 777 if (newView) { 778 mSoftInputMode = attrs.softInputMode; 779 requestLayout(); 780 } 781 // Don't lose the mode we last auto-computed. 782 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 783 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 784 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 785 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 786 | (oldSoftInputMode 787 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 788 } 789 mWindowAttributesChanged = true; 790 scheduleTraversals(); 791 } 792 } 793 794 void handleAppVisibility(boolean visible) { 795 if (mAppVisible != visible) { 796 mAppVisible = visible; 797 scheduleTraversals(); 798 } 799 } 800 801 void handleGetNewSurface() { 802 mNewSurfaceNeeded = true; 803 mFullRedrawNeeded = true; 804 scheduleTraversals(); 805 } 806 807 void handleScreenStateChange(boolean on) { 808 if (on != mAttachInfo.mScreenOn) { 809 mAttachInfo.mScreenOn = on; 810 if (mView != null) { 811 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 812 } 813 if (on) { 814 mFullRedrawNeeded = true; 815 scheduleTraversals(); 816 } 817 } 818 } 819 820 /** 821 * {@inheritDoc} 822 */ 823 public void requestFitSystemWindows() { 824 checkThread(); 825 mFitSystemWindowsRequested = true; 826 scheduleTraversals(); 827 } 828 829 /** 830 * {@inheritDoc} 831 */ 832 public void requestLayout() { 833 checkThread(); 834 mLayoutRequested = true; 835 scheduleTraversals(); 836 } 837 838 /** 839 * {@inheritDoc} 840 */ 841 public boolean isLayoutRequested() { 842 return mLayoutRequested; 843 } 844 845 void invalidate() { 846 mDirty.set(0, 0, mWidth, mHeight); 847 scheduleTraversals(); 848 } 849 850 void invalidateWorld(View view) { 851 view.invalidate(); 852 if (view instanceof ViewGroup) { 853 ViewGroup parent = (ViewGroup)view; 854 for (int i=0; i<parent.getChildCount(); i++) { 855 invalidateWorld(parent.getChildAt(i)); 856 } 857 } 858 } 859 860 public void invalidateChild(View child, Rect dirty) { 861 invalidateChildInParent(null, dirty); 862 } 863 864 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 865 checkThread(); 866 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 867 868 if (dirty == null) { 869 invalidate(); 870 return null; 871 } else if (dirty.isEmpty()) { 872 return null; 873 } 874 875 if (mCurScrollY != 0 || mTranslator != null) { 876 mTempRect.set(dirty); 877 dirty = mTempRect; 878 if (mCurScrollY != 0) { 879 dirty.offset(0, -mCurScrollY); 880 } 881 if (mTranslator != null) { 882 mTranslator.translateRectInAppWindowToScreen(dirty); 883 } 884 if (mAttachInfo.mScalingRequired) { 885 dirty.inset(-1, -1); 886 } 887 } 888 889 final Rect localDirty = mDirty; 890 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 891 mAttachInfo.mSetIgnoreDirtyState = true; 892 mAttachInfo.mIgnoreDirtyState = true; 893 } 894 895 // Add the new dirty rect to the current one 896 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 897 // Intersect with the bounds of the window to skip 898 // updates that lie outside of the visible region 899 final float appScale = mAttachInfo.mApplicationScale; 900 localDirty.intersect(0, 0, 901 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 902 903 if (!mWillDrawSoon) { 904 scheduleTraversals(); 905 } 906 907 return null; 908 } 909 910 void setStopped(boolean stopped) { 911 if (mStopped != stopped) { 912 mStopped = stopped; 913 if (!stopped) { 914 scheduleTraversals(); 915 } 916 } 917 } 918 919 public ViewParent getParent() { 920 return null; 921 } 922 923 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 924 if (child != mView) { 925 throw new RuntimeException("child is not mine, honest!"); 926 } 927 // Note: don't apply scroll offset, because we want to know its 928 // visibility in the virtual canvas being given to the view hierarchy. 929 return r.intersect(0, 0, mWidth, mHeight); 930 } 931 932 public void bringChildToFront(View child) { 933 } 934 935 int getHostVisibility() { 936 return mAppVisible ? mView.getVisibility() : View.GONE; 937 } 938 939 void disposeResizeBuffer() { 940 if (mResizeBuffer != null) { 941 mResizeBuffer.destroy(); 942 mResizeBuffer = null; 943 } 944 } 945 946 /** 947 * Add LayoutTransition to the list of transitions to be started in the next traversal. 948 * This list will be cleared after the transitions on the list are start()'ed. These 949 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 950 * happens during the layout phase of traversal, which we want to complete before any of the 951 * animations are started (because those animations may side-effect properties that layout 952 * depends upon, like the bounding rectangles of the affected views). So we add the transition 953 * to the list and it is started just prior to starting the drawing phase of traversal. 954 * 955 * @param transition The LayoutTransition to be started on the next traversal. 956 * 957 * @hide 958 */ 959 public void requestTransitionStart(LayoutTransition transition) { 960 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 961 if (mPendingTransitions == null) { 962 mPendingTransitions = new ArrayList<LayoutTransition>(); 963 } 964 mPendingTransitions.add(transition); 965 } 966 } 967 968 void scheduleTraversals() { 969 if (!mTraversalScheduled) { 970 mTraversalScheduled = true; 971 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 972 mChoreographer.postCallback( 973 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 974 scheduleConsumeBatchedInput(); 975 } 976 } 977 978 void unscheduleTraversals() { 979 if (mTraversalScheduled) { 980 mTraversalScheduled = false; 981 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 982 mChoreographer.removeCallbacks( 983 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 984 } 985 } 986 987 void doTraversal() { 988 if (mTraversalScheduled) { 989 mTraversalScheduled = false; 990 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 991 992 if (mProfile) { 993 Debug.startMethodTracing("ViewAncestor"); 994 } 995 996 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 997 try { 998 performTraversals(); 999 } finally { 1000 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1001 } 1002 1003 if (mProfile) { 1004 Debug.stopMethodTracing(); 1005 mProfile = false; 1006 } 1007 } 1008 } 1009 1010 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1011 // Update window's global keep screen on flag: if a view has requested 1012 // that the screen be kept on, then it is always set; otherwise, it is 1013 // set to whatever the client last requested for the global state. 1014 if (mAttachInfo.mKeepScreenOn) { 1015 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1016 } else { 1017 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1018 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1019 } 1020 } 1021 1022 private boolean collectViewAttributes() { 1023 final View.AttachInfo attachInfo = mAttachInfo; 1024 if (attachInfo.mRecomputeGlobalAttributes) { 1025 //Log.i(TAG, "Computing view hierarchy attributes!"); 1026 attachInfo.mRecomputeGlobalAttributes = false; 1027 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1028 int oldVis = attachInfo.mSystemUiVisibility; 1029 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1030 attachInfo.mKeepScreenOn = false; 1031 attachInfo.mSystemUiVisibility = 0; 1032 attachInfo.mHasSystemUiListeners = false; 1033 mView.dispatchCollectViewAttributes(attachInfo, 0); 1034 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1035 if (attachInfo.mKeepScreenOn != oldScreenOn 1036 || attachInfo.mSystemUiVisibility != oldVis 1037 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1038 WindowManager.LayoutParams params = mWindowAttributes; 1039 applyKeepScreenOnFlag(params); 1040 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1041 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1042 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1043 return true; 1044 } 1045 } 1046 return false; 1047 } 1048 1049 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1050 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1051 int childWidthMeasureSpec; 1052 int childHeightMeasureSpec; 1053 boolean windowSizeMayChange = false; 1054 1055 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1056 "Measuring " + host + " in display " + desiredWindowWidth 1057 + "x" + desiredWindowHeight + "..."); 1058 1059 boolean goodMeasure = false; 1060 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1061 // On large screens, we don't want to allow dialogs to just 1062 // stretch to fill the entire width of the screen to display 1063 // one line of text. First try doing the layout at a smaller 1064 // size to see if it will fit. 1065 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1066 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1067 int baseSize = 0; 1068 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1069 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1070 } 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1072 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1073 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1074 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 goodMeasure = true; 1080 } else { 1081 // Didn't fit in that size... try expanding a bit. 1082 baseSize = (baseSize+desiredWindowWidth)/2; 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1084 + baseSize); 1085 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1086 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1088 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1089 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1090 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1091 goodMeasure = true; 1092 } 1093 } 1094 } 1095 } 1096 1097 if (!goodMeasure) { 1098 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1099 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1100 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1101 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1102 windowSizeMayChange = true; 1103 } 1104 } 1105 1106 if (DBG) { 1107 System.out.println("======================================"); 1108 System.out.println("performTraversals -- after measure"); 1109 host.debug(); 1110 } 1111 1112 return windowSizeMayChange; 1113 } 1114 1115 private void performTraversals() { 1116 // cache mView since it is used so much below... 1117 final View host = mView; 1118 1119 if (DBG) { 1120 System.out.println("======================================"); 1121 System.out.println("performTraversals"); 1122 host.debug(); 1123 } 1124 1125 if (host == null || !mAdded) 1126 return; 1127 1128 mWillDrawSoon = true; 1129 boolean windowSizeMayChange = false; 1130 boolean newSurface = false; 1131 boolean surfaceChanged = false; 1132 WindowManager.LayoutParams lp = mWindowAttributes; 1133 1134 int desiredWindowWidth; 1135 int desiredWindowHeight; 1136 1137 final View.AttachInfo attachInfo = mAttachInfo; 1138 1139 final int viewVisibility = getHostVisibility(); 1140 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1141 || mNewSurfaceNeeded; 1142 1143 WindowManager.LayoutParams params = null; 1144 if (mWindowAttributesChanged) { 1145 mWindowAttributesChanged = false; 1146 surfaceChanged = true; 1147 params = lp; 1148 } 1149 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1150 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1151 params = lp; 1152 mFullRedrawNeeded = true; 1153 mLayoutRequested = true; 1154 if (mLastInCompatMode) { 1155 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1156 mLastInCompatMode = false; 1157 } else { 1158 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1159 mLastInCompatMode = true; 1160 } 1161 } 1162 1163 mWindowAttributesChangesFlag = 0; 1164 1165 Rect frame = mWinFrame; 1166 if (mFirst) { 1167 mFullRedrawNeeded = true; 1168 mLayoutRequested = true; 1169 1170 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1171 // NOTE -- system code, won't try to do compat mode. 1172 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1173 Point size = new Point(); 1174 disp.getRealSize(size); 1175 desiredWindowWidth = size.x; 1176 desiredWindowHeight = size.y; 1177 } else { 1178 DisplayMetrics packageMetrics = 1179 mView.getContext().getResources().getDisplayMetrics(); 1180 desiredWindowWidth = packageMetrics.widthPixels; 1181 desiredWindowHeight = packageMetrics.heightPixels; 1182 } 1183 1184 // For the very first time, tell the view hierarchy that it 1185 // is attached to the window. Note that at this point the surface 1186 // object is not initialized to its backing store, but soon it 1187 // will be (assuming the window is visible). 1188 attachInfo.mSurface = mSurface; 1189 // We used to use the following condition to choose 32 bits drawing caches: 1190 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1191 // However, windows are now always 32 bits by default, so choose 32 bits 1192 attachInfo.mUse32BitDrawingCache = true; 1193 attachInfo.mHasWindowFocus = false; 1194 attachInfo.mWindowVisibility = viewVisibility; 1195 attachInfo.mRecomputeGlobalAttributes = false; 1196 viewVisibilityChanged = false; 1197 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1198 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1199 host.dispatchAttachedToWindow(attachInfo, 0); 1200 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1201 host.fitSystemWindows(mFitSystemWindowsInsets); 1202 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1203 1204 } else { 1205 desiredWindowWidth = frame.width(); 1206 desiredWindowHeight = frame.height(); 1207 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1208 if (DEBUG_ORIENTATION) Log.v(TAG, 1209 "View " + host + " resized to: " + frame); 1210 mFullRedrawNeeded = true; 1211 mLayoutRequested = true; 1212 windowSizeMayChange = true; 1213 } 1214 } 1215 1216 if (viewVisibilityChanged) { 1217 attachInfo.mWindowVisibility = viewVisibility; 1218 host.dispatchWindowVisibilityChanged(viewVisibility); 1219 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1220 destroyHardwareResources(); 1221 } 1222 if (viewVisibility == View.GONE) { 1223 // After making a window gone, we will count it as being 1224 // shown for the first time the next time it gets focus. 1225 mHasHadWindowFocus = false; 1226 } 1227 } 1228 1229 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1230 getRunQueue().executeActions(attachInfo.mHandler); 1231 1232 boolean insetsChanged = false; 1233 1234 boolean layoutRequested = mLayoutRequested && !mStopped; 1235 if (layoutRequested) { 1236 1237 final Resources res = mView.getContext().getResources(); 1238 1239 if (mFirst) { 1240 // make sure touch mode code executes by setting cached value 1241 // to opposite of the added touch mode. 1242 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1243 ensureTouchModeLocally(mAddedTouchMode); 1244 } else { 1245 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1246 insetsChanged = true; 1247 } 1248 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1249 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1250 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1251 + mAttachInfo.mVisibleInsets); 1252 } 1253 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1254 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1255 windowSizeMayChange = true; 1256 1257 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1258 // NOTE -- system code, won't try to do compat mode. 1259 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1260 Point size = new Point(); 1261 disp.getRealSize(size); 1262 desiredWindowWidth = size.x; 1263 desiredWindowHeight = size.y; 1264 } else { 1265 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1266 desiredWindowWidth = packageMetrics.widthPixels; 1267 desiredWindowHeight = packageMetrics.heightPixels; 1268 } 1269 } 1270 } 1271 1272 // Ask host how big it wants to be 1273 windowSizeMayChange |= measureHierarchy(host, lp, res, 1274 desiredWindowWidth, desiredWindowHeight); 1275 } 1276 1277 if (collectViewAttributes()) { 1278 params = lp; 1279 } 1280 if (attachInfo.mForceReportNewAttributes) { 1281 attachInfo.mForceReportNewAttributes = false; 1282 params = lp; 1283 } 1284 1285 if (mFirst || attachInfo.mViewVisibilityChanged) { 1286 attachInfo.mViewVisibilityChanged = false; 1287 int resizeMode = mSoftInputMode & 1288 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1289 // If we are in auto resize mode, then we need to determine 1290 // what mode to use now. 1291 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1292 final int N = attachInfo.mScrollContainers.size(); 1293 for (int i=0; i<N; i++) { 1294 if (attachInfo.mScrollContainers.get(i).isShown()) { 1295 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1296 } 1297 } 1298 if (resizeMode == 0) { 1299 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1300 } 1301 if ((lp.softInputMode & 1302 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1303 lp.softInputMode = (lp.softInputMode & 1304 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1305 resizeMode; 1306 params = lp; 1307 } 1308 } 1309 } 1310 1311 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1312 if (!PixelFormat.formatHasAlpha(params.format)) { 1313 params.format = PixelFormat.TRANSLUCENT; 1314 } 1315 } 1316 1317 if (mFitSystemWindowsRequested) { 1318 mFitSystemWindowsRequested = false; 1319 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1320 host.fitSystemWindows(mFitSystemWindowsInsets); 1321 if (mLayoutRequested) { 1322 // Short-circuit catching a new layout request here, so 1323 // we don't need to go through two layout passes when things 1324 // change due to fitting system windows, which can happen a lot. 1325 windowSizeMayChange |= measureHierarchy(host, lp, 1326 mView.getContext().getResources(), 1327 desiredWindowWidth, desiredWindowHeight); 1328 } 1329 } 1330 1331 if (layoutRequested) { 1332 // Clear this now, so that if anything requests a layout in the 1333 // rest of this function we will catch it and re-run a full 1334 // layout pass. 1335 mLayoutRequested = false; 1336 } 1337 1338 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1339 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1340 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1341 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1342 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1343 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1344 1345 final boolean computesInternalInsets = 1346 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1347 1348 boolean insetsPending = false; 1349 int relayoutResult = 0; 1350 1351 if (mFirst || windowShouldResize || insetsChanged || 1352 viewVisibilityChanged || params != null) { 1353 1354 if (viewVisibility == View.VISIBLE) { 1355 // If this window is giving internal insets to the window 1356 // manager, and it is being added or changing its visibility, 1357 // then we want to first give the window manager "fake" 1358 // insets to cause it to effectively ignore the content of 1359 // the window during layout. This avoids it briefly causing 1360 // other windows to resize/move based on the raw frame of the 1361 // window, waiting until we can finish laying out this window 1362 // and get back to the window manager with the ultimately 1363 // computed insets. 1364 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1365 } 1366 1367 if (mSurfaceHolder != null) { 1368 mSurfaceHolder.mSurfaceLock.lock(); 1369 mDrawingAllowed = true; 1370 } 1371 1372 boolean hwInitialized = false; 1373 boolean contentInsetsChanged = false; 1374 boolean visibleInsetsChanged; 1375 boolean hadSurface = mSurface.isValid(); 1376 1377 try { 1378 if (DEBUG_LAYOUT) { 1379 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1380 host.getMeasuredHeight() + ", params=" + params); 1381 } 1382 1383 final int surfaceGenerationId = mSurface.getGenerationId(); 1384 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1385 1386 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1387 + " content=" + mPendingContentInsets.toShortString() 1388 + " visible=" + mPendingVisibleInsets.toShortString() 1389 + " surface=" + mSurface); 1390 1391 if (mPendingConfiguration.seq != 0) { 1392 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1393 + mPendingConfiguration); 1394 updateConfiguration(mPendingConfiguration, !mFirst); 1395 mPendingConfiguration.seq = 0; 1396 } 1397 1398 contentInsetsChanged = !mPendingContentInsets.equals( 1399 mAttachInfo.mContentInsets); 1400 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1401 mAttachInfo.mVisibleInsets); 1402 if (contentInsetsChanged) { 1403 if (mWidth > 0 && mHeight > 0 && lp != null && 1404 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1405 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1406 mSurface != null && mSurface.isValid() && 1407 !mAttachInfo.mTurnOffWindowResizeAnim && 1408 mAttachInfo.mHardwareRenderer != null && 1409 mAttachInfo.mHardwareRenderer.isEnabled() && 1410 mAttachInfo.mHardwareRenderer.validate() && 1411 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1412 1413 disposeResizeBuffer(); 1414 1415 boolean completed = false; 1416 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1417 HardwareCanvas layerCanvas = null; 1418 try { 1419 if (mResizeBuffer == null) { 1420 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1421 mWidth, mHeight, false); 1422 } else if (mResizeBuffer.getWidth() != mWidth || 1423 mResizeBuffer.getHeight() != mHeight) { 1424 mResizeBuffer.resize(mWidth, mHeight); 1425 } 1426 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1427 layerCanvas.setViewport(mWidth, mHeight); 1428 layerCanvas.onPreDraw(null); 1429 final int restoreCount = layerCanvas.save(); 1430 1431 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1432 1433 int yoff; 1434 final boolean scrolling = mScroller != null 1435 && mScroller.computeScrollOffset(); 1436 if (scrolling) { 1437 yoff = mScroller.getCurrY(); 1438 mScroller.abortAnimation(); 1439 } else { 1440 yoff = mScrollY; 1441 } 1442 1443 layerCanvas.translate(0, -yoff); 1444 if (mTranslator != null) { 1445 mTranslator.translateCanvas(layerCanvas); 1446 } 1447 1448 mView.draw(layerCanvas); 1449 1450 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1451 1452 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1453 mResizeBufferDuration = mView.getResources().getInteger( 1454 com.android.internal.R.integer.config_mediumAnimTime); 1455 completed = true; 1456 1457 layerCanvas.restoreToCount(restoreCount); 1458 } catch (OutOfMemoryError e) { 1459 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1460 } finally { 1461 if (layerCanvas != null) { 1462 layerCanvas.onPostDraw(); 1463 } 1464 if (mResizeBuffer != null) { 1465 mResizeBuffer.end(hwRendererCanvas); 1466 if (!completed) { 1467 mResizeBuffer.destroy(); 1468 mResizeBuffer = null; 1469 } 1470 } 1471 } 1472 } 1473 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1474 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1475 + mAttachInfo.mContentInsets); 1476 } 1477 if (contentInsetsChanged || mLastSystemUiVisibility != 1478 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1479 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1480 mFitSystemWindowsRequested = false; 1481 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1482 host.fitSystemWindows(mFitSystemWindowsInsets); 1483 } 1484 if (visibleInsetsChanged) { 1485 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1486 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1487 + mAttachInfo.mVisibleInsets); 1488 } 1489 1490 if (!hadSurface) { 1491 if (mSurface.isValid()) { 1492 // If we are creating a new surface, then we need to 1493 // completely redraw it. Also, when we get to the 1494 // point of drawing it we will hold off and schedule 1495 // a new traversal instead. This is so we can tell the 1496 // window manager about all of the windows being displayed 1497 // before actually drawing them, so it can display then 1498 // all at once. 1499 newSurface = true; 1500 mFullRedrawNeeded = true; 1501 mPreviousTransparentRegion.setEmpty(); 1502 1503 if (mAttachInfo.mHardwareRenderer != null) { 1504 try { 1505 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1506 mHolder.getSurface()); 1507 } catch (Surface.OutOfResourcesException e) { 1508 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1509 try { 1510 if (!sWindowSession.outOfMemory(mWindow)) { 1511 Slog.w(TAG, "No processes killed for memory; killing self"); 1512 Process.killProcess(Process.myPid()); 1513 } 1514 } catch (RemoteException ex) { 1515 } 1516 mLayoutRequested = true; // ask wm for a new surface next time. 1517 return; 1518 } 1519 } 1520 } 1521 } else if (!mSurface.isValid()) { 1522 // If the surface has been removed, then reset the scroll 1523 // positions. 1524 mLastScrolledFocus = null; 1525 mScrollY = mCurScrollY = 0; 1526 if (mScroller != null) { 1527 mScroller.abortAnimation(); 1528 } 1529 disposeResizeBuffer(); 1530 // Our surface is gone 1531 if (mAttachInfo.mHardwareRenderer != null && 1532 mAttachInfo.mHardwareRenderer.isEnabled()) { 1533 mAttachInfo.mHardwareRenderer.destroy(true); 1534 } 1535 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1536 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1537 mFullRedrawNeeded = true; 1538 try { 1539 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1540 } catch (Surface.OutOfResourcesException e) { 1541 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1542 try { 1543 if (!sWindowSession.outOfMemory(mWindow)) { 1544 Slog.w(TAG, "No processes killed for memory; killing self"); 1545 Process.killProcess(Process.myPid()); 1546 } 1547 } catch (RemoteException ex) { 1548 } 1549 mLayoutRequested = true; // ask wm for a new surface next time. 1550 return; 1551 } 1552 } 1553 } catch (RemoteException e) { 1554 } 1555 1556 if (DEBUG_ORIENTATION) Log.v( 1557 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1558 1559 attachInfo.mWindowLeft = frame.left; 1560 attachInfo.mWindowTop = frame.top; 1561 1562 // !!FIXME!! This next section handles the case where we did not get the 1563 // window size we asked for. We should avoid this by getting a maximum size from 1564 // the window session beforehand. 1565 if (mWidth != frame.width() || mHeight != frame.height()) { 1566 mWidth = frame.width(); 1567 mHeight = frame.height(); 1568 } 1569 1570 if (mSurfaceHolder != null) { 1571 // The app owns the surface; tell it about what is going on. 1572 if (mSurface.isValid()) { 1573 // XXX .copyFrom() doesn't work! 1574 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1575 mSurfaceHolder.mSurface = mSurface; 1576 } 1577 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1578 mSurfaceHolder.mSurfaceLock.unlock(); 1579 if (mSurface.isValid()) { 1580 if (!hadSurface) { 1581 mSurfaceHolder.ungetCallbacks(); 1582 1583 mIsCreating = true; 1584 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1585 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1586 if (callbacks != null) { 1587 for (SurfaceHolder.Callback c : callbacks) { 1588 c.surfaceCreated(mSurfaceHolder); 1589 } 1590 } 1591 surfaceChanged = true; 1592 } 1593 if (surfaceChanged) { 1594 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1595 lp.format, mWidth, mHeight); 1596 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1597 if (callbacks != null) { 1598 for (SurfaceHolder.Callback c : callbacks) { 1599 c.surfaceChanged(mSurfaceHolder, lp.format, 1600 mWidth, mHeight); 1601 } 1602 } 1603 } 1604 mIsCreating = false; 1605 } else if (hadSurface) { 1606 mSurfaceHolder.ungetCallbacks(); 1607 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1608 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1609 if (callbacks != null) { 1610 for (SurfaceHolder.Callback c : callbacks) { 1611 c.surfaceDestroyed(mSurfaceHolder); 1612 } 1613 } 1614 mSurfaceHolder.mSurfaceLock.lock(); 1615 try { 1616 mSurfaceHolder.mSurface = new Surface(); 1617 } finally { 1618 mSurfaceHolder.mSurfaceLock.unlock(); 1619 } 1620 } 1621 } 1622 1623 if (mAttachInfo.mHardwareRenderer != null && 1624 mAttachInfo.mHardwareRenderer.isEnabled()) { 1625 if (hwInitialized || windowShouldResize || 1626 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1627 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1628 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1629 if (!hwInitialized) { 1630 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1631 } 1632 } 1633 } 1634 1635 if (!mStopped) { 1636 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1637 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1638 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1639 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1640 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1641 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1642 1643 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1644 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1645 + " mHeight=" + mHeight 1646 + " measuredHeight=" + host.getMeasuredHeight() 1647 + " coveredInsetsChanged=" + contentInsetsChanged); 1648 1649 // Ask host how big it wants to be 1650 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1651 1652 // Implementation of weights from WindowManager.LayoutParams 1653 // We just grow the dimensions as needed and re-measure if 1654 // needs be 1655 int width = host.getMeasuredWidth(); 1656 int height = host.getMeasuredHeight(); 1657 boolean measureAgain = false; 1658 1659 if (lp.horizontalWeight > 0.0f) { 1660 width += (int) ((mWidth - width) * lp.horizontalWeight); 1661 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1662 MeasureSpec.EXACTLY); 1663 measureAgain = true; 1664 } 1665 if (lp.verticalWeight > 0.0f) { 1666 height += (int) ((mHeight - height) * lp.verticalWeight); 1667 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1668 MeasureSpec.EXACTLY); 1669 measureAgain = true; 1670 } 1671 1672 if (measureAgain) { 1673 if (DEBUG_LAYOUT) Log.v(TAG, 1674 "And hey let's measure once more: width=" + width 1675 + " height=" + height); 1676 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1677 } 1678 1679 layoutRequested = true; 1680 } 1681 } 1682 } else { 1683 // Not the first pass and no window/insets/visibility change but the window 1684 // may have moved and we need check that and if so to update the left and right 1685 // in the attach info. We translate only the window frame since on window move 1686 // the window manager tells us only for the new frame but the insets are the 1687 // same and we do not want to translate them more than once. 1688 1689 // TODO: Well, we are checking whether the frame has changed similarly 1690 // to how this is done for the insets. This is however incorrect since 1691 // the insets and the frame are translated. For example, the old frame 1692 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1693 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1694 // true since we are comparing a not translated value to a translated one. 1695 // This scenario is rare but we may want to fix that. 1696 1697 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1698 || attachInfo.mWindowTop != frame.top); 1699 if (windowMoved) { 1700 if (mTranslator != null) { 1701 mTranslator.translateRectInScreenToAppWinFrame(frame); 1702 } 1703 attachInfo.mWindowLeft = frame.left; 1704 attachInfo.mWindowTop = frame.top; 1705 } 1706 } 1707 1708 final boolean didLayout = layoutRequested && !mStopped; 1709 boolean triggerGlobalLayoutListener = didLayout 1710 || attachInfo.mRecomputeGlobalAttributes; 1711 if (didLayout) { 1712 performLayout(); 1713 1714 // By this point all views have been sized and positionned 1715 // We can compute the transparent area 1716 1717 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1718 // start out transparent 1719 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1720 host.getLocationInWindow(mTmpLocation); 1721 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1722 mTmpLocation[0] + host.mRight - host.mLeft, 1723 mTmpLocation[1] + host.mBottom - host.mTop); 1724 1725 host.gatherTransparentRegion(mTransparentRegion); 1726 if (mTranslator != null) { 1727 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1728 } 1729 1730 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1731 mPreviousTransparentRegion.set(mTransparentRegion); 1732 // reconfigure window manager 1733 try { 1734 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1735 } catch (RemoteException e) { 1736 } 1737 } 1738 } 1739 1740 if (DBG) { 1741 System.out.println("======================================"); 1742 System.out.println("performTraversals -- after setFrame"); 1743 host.debug(); 1744 } 1745 } 1746 1747 if (triggerGlobalLayoutListener) { 1748 attachInfo.mRecomputeGlobalAttributes = false; 1749 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1750 1751 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1752 postSendWindowContentChangedCallback(mView); 1753 } 1754 } 1755 1756 if (computesInternalInsets) { 1757 // Clear the original insets. 1758 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1759 insets.reset(); 1760 1761 // Compute new insets in place. 1762 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1763 1764 // Tell the window manager. 1765 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1766 mLastGivenInsets.set(insets); 1767 1768 // Translate insets to screen coordinates if needed. 1769 final Rect contentInsets; 1770 final Rect visibleInsets; 1771 final Region touchableRegion; 1772 if (mTranslator != null) { 1773 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1774 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1775 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1776 } else { 1777 contentInsets = insets.contentInsets; 1778 visibleInsets = insets.visibleInsets; 1779 touchableRegion = insets.touchableRegion; 1780 } 1781 1782 try { 1783 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1784 contentInsets, visibleInsets, touchableRegion); 1785 } catch (RemoteException e) { 1786 } 1787 } 1788 } 1789 1790 boolean skipDraw = false; 1791 1792 if (mFirst) { 1793 // handle first focus request 1794 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1795 + mView.hasFocus()); 1796 if (mView != null) { 1797 if (!mView.hasFocus()) { 1798 mView.requestFocus(View.FOCUS_FORWARD); 1799 mFocusedView = mRealFocusedView = mView.findFocus(); 1800 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1801 + mFocusedView); 1802 } else { 1803 mRealFocusedView = mView.findFocus(); 1804 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1805 + mRealFocusedView); 1806 } 1807 } 1808 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1809 // The first time we relayout the window, if the system is 1810 // doing window animations, we want to hold of on any future 1811 // draws until the animation is done. 1812 mWindowsAnimating = true; 1813 } 1814 } else if (mWindowsAnimating) { 1815 skipDraw = true; 1816 } 1817 1818 mFirst = false; 1819 mWillDrawSoon = false; 1820 mNewSurfaceNeeded = false; 1821 mViewVisibility = viewVisibility; 1822 1823 if (mAttachInfo.mHasWindowFocus) { 1824 final boolean imTarget = WindowManager.LayoutParams 1825 .mayUseInputMethod(mWindowAttributes.flags); 1826 if (imTarget != mLastWasImTarget) { 1827 mLastWasImTarget = imTarget; 1828 InputMethodManager imm = InputMethodManager.peekInstance(); 1829 if (imm != null && imTarget) { 1830 imm.startGettingWindowFocus(mView); 1831 imm.onWindowFocus(mView, mView.findFocus(), 1832 mWindowAttributes.softInputMode, 1833 !mHasHadWindowFocus, mWindowAttributes.flags); 1834 } 1835 } 1836 } 1837 1838 // Remember if we must report the next draw. 1839 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1840 mReportNextDraw = true; 1841 } 1842 1843 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1844 viewVisibility != View.VISIBLE; 1845 1846 if (!cancelDraw && !newSurface) { 1847 if (!skipDraw || mReportNextDraw) { 1848 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1849 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1850 mPendingTransitions.get(i).startChangingAnimations(); 1851 } 1852 mPendingTransitions.clear(); 1853 } 1854 1855 performDraw(); 1856 } 1857 } else { 1858 if (viewVisibility == View.VISIBLE) { 1859 // Try again 1860 scheduleTraversals(); 1861 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1862 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1863 mPendingTransitions.get(i).endChangingAnimations(); 1864 } 1865 mPendingTransitions.clear(); 1866 } 1867 } 1868 } 1869 1870 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1871 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1872 try { 1873 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1874 } finally { 1875 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1876 } 1877 } 1878 1879 private void performLayout() { 1880 mLayoutRequested = false; 1881 mScrollMayChange = true; 1882 1883 final View host = mView; 1884 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1885 Log.v(TAG, "Laying out " + host + " to (" + 1886 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1887 } 1888 1889 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1890 try { 1891 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1892 } finally { 1893 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1894 } 1895 } 1896 1897 public void requestTransparentRegion(View child) { 1898 // the test below should not fail unless someone is messing with us 1899 checkThread(); 1900 if (mView == child) { 1901 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1902 // Need to make sure we re-evaluate the window attributes next 1903 // time around, to ensure the window has the correct format. 1904 mWindowAttributesChanged = true; 1905 mWindowAttributesChangesFlag = 0; 1906 requestLayout(); 1907 } 1908 } 1909 1910 /** 1911 * Figures out the measure spec for the root view in a window based on it's 1912 * layout params. 1913 * 1914 * @param windowSize 1915 * The available width or height of the window 1916 * 1917 * @param rootDimension 1918 * The layout params for one dimension (width or height) of the 1919 * window. 1920 * 1921 * @return The measure spec to use to measure the root view. 1922 */ 1923 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1924 int measureSpec; 1925 switch (rootDimension) { 1926 1927 case ViewGroup.LayoutParams.MATCH_PARENT: 1928 // Window can't resize. Force root view to be windowSize. 1929 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1930 break; 1931 case ViewGroup.LayoutParams.WRAP_CONTENT: 1932 // Window can resize. Set max size for root view. 1933 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1934 break; 1935 default: 1936 // Window wants to be an exact size. Force root view to be that size. 1937 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1938 break; 1939 } 1940 return measureSpec; 1941 } 1942 1943 int mHardwareYOffset; 1944 int mResizeAlpha; 1945 final Paint mResizePaint = new Paint(); 1946 1947 public void onHardwarePreDraw(HardwareCanvas canvas) { 1948 canvas.translate(0, -mHardwareYOffset); 1949 } 1950 1951 public void onHardwarePostDraw(HardwareCanvas canvas) { 1952 if (mResizeBuffer != null) { 1953 mResizePaint.setAlpha(mResizeAlpha); 1954 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1955 } 1956 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1957 } 1958 1959 /** 1960 * @hide 1961 */ 1962 void outputDisplayList(View view) { 1963 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1964 DisplayList displayList = view.getDisplayList(); 1965 if (displayList != null) { 1966 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1967 } 1968 } 1969 } 1970 1971 /** 1972 * @see #PROPERTY_PROFILE_RENDERING 1973 */ 1974 private void profileRendering(boolean enabled) { 1975 if (mProfileRendering) { 1976 mRenderProfilingEnabled = enabled; 1977 if (mRenderProfiler == null) { 1978 mRenderProfiler = new Thread(new Runnable() { 1979 @Override 1980 public void run() { 1981 Log.d(TAG, "Starting profiling thread"); 1982 while (mRenderProfilingEnabled) { 1983 mAttachInfo.mHandler.post(new Runnable() { 1984 @Override 1985 public void run() { 1986 mDirty.set(0, 0, mWidth, mHeight); 1987 scheduleTraversals(); 1988 } 1989 }); 1990 try { 1991 // TODO: This should use vsync when we get an API 1992 Thread.sleep(15); 1993 } catch (InterruptedException e) { 1994 Log.d(TAG, "Exiting profiling thread"); 1995 } 1996 } 1997 } 1998 }, "Rendering Profiler"); 1999 mRenderProfiler.start(); 2000 } else { 2001 mRenderProfiler.interrupt(); 2002 mRenderProfiler = null; 2003 } 2004 } 2005 } 2006 2007 /** 2008 * Called from draw() when DEBUG_FPS is enabled 2009 */ 2010 private void trackFPS() { 2011 // Tracks frames per second drawn. First value in a series of draws may be bogus 2012 // because it down not account for the intervening idle time 2013 long nowTime = System.currentTimeMillis(); 2014 if (mFpsStartTime < 0) { 2015 mFpsStartTime = mFpsPrevTime = nowTime; 2016 mFpsNumFrames = 0; 2017 } else { 2018 ++mFpsNumFrames; 2019 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2020 long frameTime = nowTime - mFpsPrevTime; 2021 long totalTime = nowTime - mFpsStartTime; 2022 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2023 mFpsPrevTime = nowTime; 2024 if (totalTime > 1000) { 2025 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2026 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2027 mFpsStartTime = nowTime; 2028 mFpsNumFrames = 0; 2029 } 2030 } 2031 } 2032 2033 private void performDraw() { 2034 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2035 return; 2036 } 2037 2038 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2039 mFullRedrawNeeded = false; 2040 2041 mIsDrawing = true; 2042 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2043 try { 2044 draw(fullRedrawNeeded); 2045 } finally { 2046 mIsDrawing = false; 2047 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2048 } 2049 2050 if (mReportNextDraw) { 2051 mReportNextDraw = false; 2052 2053 if (LOCAL_LOGV) { 2054 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2055 } 2056 if (mSurfaceHolder != null && mSurface.isValid()) { 2057 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2058 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2059 if (callbacks != null) { 2060 for (SurfaceHolder.Callback c : callbacks) { 2061 if (c instanceof SurfaceHolder.Callback2) { 2062 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2063 mSurfaceHolder); 2064 } 2065 } 2066 } 2067 } 2068 try { 2069 sWindowSession.finishDrawing(mWindow); 2070 } catch (RemoteException e) { 2071 } 2072 } 2073 } 2074 2075 private void draw(boolean fullRedrawNeeded) { 2076 Surface surface = mSurface; 2077 if (surface == null || !surface.isValid()) { 2078 return; 2079 } 2080 2081 if (DEBUG_FPS) { 2082 trackFPS(); 2083 } 2084 2085 if (!sFirstDrawComplete) { 2086 synchronized (sFirstDrawHandlers) { 2087 sFirstDrawComplete = true; 2088 final int count = sFirstDrawHandlers.size(); 2089 for (int i = 0; i< count; i++) { 2090 mHandler.post(sFirstDrawHandlers.get(i)); 2091 } 2092 } 2093 } 2094 2095 scrollToRectOrFocus(null, false); 2096 2097 final AttachInfo attachInfo = mAttachInfo; 2098 if (attachInfo.mViewScrollChanged) { 2099 attachInfo.mViewScrollChanged = false; 2100 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2101 } 2102 2103 int yoff; 2104 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2105 if (animating) { 2106 yoff = mScroller.getCurrY(); 2107 } else { 2108 yoff = mScrollY; 2109 } 2110 if (mCurScrollY != yoff) { 2111 mCurScrollY = yoff; 2112 fullRedrawNeeded = true; 2113 } 2114 2115 final float appScale = attachInfo.mApplicationScale; 2116 final boolean scalingRequired = attachInfo.mScalingRequired; 2117 2118 int resizeAlpha = 0; 2119 if (mResizeBuffer != null) { 2120 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2121 if (deltaTime < mResizeBufferDuration) { 2122 float amt = deltaTime/(float) mResizeBufferDuration; 2123 amt = mResizeInterpolator.getInterpolation(amt); 2124 animating = true; 2125 resizeAlpha = 255 - (int)(amt*255); 2126 } else { 2127 disposeResizeBuffer(); 2128 } 2129 } 2130 2131 final Rect dirty = mDirty; 2132 if (mSurfaceHolder != null) { 2133 // The app owns the surface, we won't draw. 2134 dirty.setEmpty(); 2135 if (animating) { 2136 if (mScroller != null) { 2137 mScroller.abortAnimation(); 2138 } 2139 disposeResizeBuffer(); 2140 } 2141 return; 2142 } 2143 2144 if (fullRedrawNeeded) { 2145 attachInfo.mIgnoreDirtyState = true; 2146 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2147 } 2148 2149 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2150 Log.v(TAG, "Draw " + mView + "/" 2151 + mWindowAttributes.getTitle() 2152 + ": dirty={" + dirty.left + "," + dirty.top 2153 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2154 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2155 appScale + ", width=" + mWidth + ", height=" + mHeight); 2156 } 2157 2158 attachInfo.mTreeObserver.dispatchOnDraw(); 2159 2160 if (!dirty.isEmpty() || mIsAnimating) { 2161 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2162 // Draw with hardware renderer. 2163 mIsAnimating = false; 2164 mHardwareYOffset = yoff; 2165 mResizeAlpha = resizeAlpha; 2166 2167 mCurrentDirty.set(dirty); 2168 mCurrentDirty.union(mPreviousDirty); 2169 mPreviousDirty.set(dirty); 2170 dirty.setEmpty(); 2171 2172 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2173 animating ? null : mCurrentDirty)) { 2174 mPreviousDirty.set(0, 0, mWidth, mHeight); 2175 } 2176 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2177 return; 2178 } 2179 } 2180 2181 if (animating) { 2182 mFullRedrawNeeded = true; 2183 scheduleTraversals(); 2184 } 2185 } 2186 2187 /** 2188 * @return true if drawing was succesfull, false if an error occurred 2189 */ 2190 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2191 boolean scalingRequired, Rect dirty) { 2192 2193 // If we get here with a disabled & requested hardware renderer, something went 2194 // wrong (an invalidate posted right before we destroyed the hardware surface 2195 // for instance) so we should just bail out. Locking the surface with software 2196 // rendering at this point would lock it forever and prevent hardware renderer 2197 // from doing its job when it comes back. 2198 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2199 attachInfo.mHardwareRenderer.isRequested()) { 2200 mFullRedrawNeeded = true; 2201 scheduleTraversals(); 2202 return false; 2203 } 2204 2205 // Draw with software renderer. 2206 Canvas canvas; 2207 try { 2208 int left = dirty.left; 2209 int top = dirty.top; 2210 int right = dirty.right; 2211 int bottom = dirty.bottom; 2212 2213 canvas = mSurface.lockCanvas(dirty); 2214 2215 if (left != dirty.left || top != dirty.top || right != dirty.right || 2216 bottom != dirty.bottom) { 2217 attachInfo.mIgnoreDirtyState = true; 2218 } 2219 2220 // TODO: Do this in native 2221 canvas.setDensity(mDensity); 2222 } catch (Surface.OutOfResourcesException e) { 2223 Log.e(TAG, "OutOfResourcesException locking surface", e); 2224 try { 2225 if (!sWindowSession.outOfMemory(mWindow)) { 2226 Slog.w(TAG, "No processes killed for memory; killing self"); 2227 Process.killProcess(Process.myPid()); 2228 } 2229 } catch (RemoteException ex) { 2230 } 2231 mLayoutRequested = true; // ask wm for a new surface next time. 2232 return false; 2233 } catch (IllegalArgumentException e) { 2234 Log.e(TAG, "Could not lock surface", e); 2235 // Don't assume this is due to out of memory, it could be 2236 // something else, and if it is something else then we could 2237 // kill stuff (or ourself) for no reason. 2238 mLayoutRequested = true; // ask wm for a new surface next time. 2239 return false; 2240 } 2241 2242 try { 2243 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2244 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2245 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2246 //canvas.drawARGB(255, 255, 0, 0); 2247 } 2248 2249 // If this bitmap's format includes an alpha channel, we 2250 // need to clear it before drawing so that the child will 2251 // properly re-composite its drawing on a transparent 2252 // background. This automatically respects the clip/dirty region 2253 // or 2254 // If we are applying an offset, we need to clear the area 2255 // where the offset doesn't appear to avoid having garbage 2256 // left in the blank areas. 2257 if (!canvas.isOpaque() || yoff != 0) { 2258 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2259 } 2260 2261 dirty.setEmpty(); 2262 mIsAnimating = false; 2263 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2264 mView.mPrivateFlags |= View.DRAWN; 2265 2266 if (DEBUG_DRAW) { 2267 Context cxt = mView.getContext(); 2268 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2269 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2270 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2271 } 2272 try { 2273 canvas.translate(0, -yoff); 2274 if (mTranslator != null) { 2275 mTranslator.translateCanvas(canvas); 2276 } 2277 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2278 attachInfo.mSetIgnoreDirtyState = false; 2279 2280 mView.draw(canvas); 2281 2282 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2283 } finally { 2284 if (!attachInfo.mSetIgnoreDirtyState) { 2285 // Only clear the flag if it was not set during the mView.draw() call 2286 attachInfo.mIgnoreDirtyState = false; 2287 } 2288 } 2289 } finally { 2290 try { 2291 surface.unlockCanvasAndPost(canvas); 2292 } catch (IllegalArgumentException e) { 2293 Log.e(TAG, "Could not unlock surface", e); 2294 mLayoutRequested = true; // ask wm for a new surface next time. 2295 //noinspection ReturnInsideFinallyBlock 2296 return false; 2297 } 2298 2299 if (LOCAL_LOGV) { 2300 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2301 } 2302 } 2303 return true; 2304 } 2305 2306 /** 2307 * We want to draw a highlight around the current accessibility focused. 2308 * Since adding a style for all possible view is not a viable option we 2309 * have this specialized drawing method. 2310 * 2311 * Note: We are doing this here to be able to draw the highlight for 2312 * virtual views in addition to real ones. 2313 * 2314 * @param canvas The canvas on which to draw. 2315 */ 2316 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2317 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2318 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2319 return; 2320 } 2321 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2322 return; 2323 } 2324 Drawable drawable = getAccessibilityFocusedDrawable(); 2325 if (drawable == null) { 2326 return; 2327 } 2328 AccessibilityNodeProvider provider = 2329 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2330 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2331 if (provider == null) { 2332 mAccessibilityFocusedHost.getDrawingRect(bounds); 2333 if (mView instanceof ViewGroup) { 2334 ViewGroup viewGroup = (ViewGroup) mView; 2335 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2336 } 2337 } else { 2338 if (mAccessibilityFocusedVirtualView == null) { 2339 return; 2340 } 2341 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2342 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2343 } 2344 drawable.setBounds(bounds); 2345 drawable.draw(canvas); 2346 } 2347 2348 private Drawable getAccessibilityFocusedDrawable() { 2349 if (mAttachInfo != null) { 2350 // Lazily load the accessibility focus drawable. 2351 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2352 TypedValue value = new TypedValue(); 2353 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2354 R.attr.accessibilityFocusedDrawable, value, true); 2355 if (resolved) { 2356 mAttachInfo.mAccessibilityFocusDrawable = 2357 mView.mContext.getResources().getDrawable(value.resourceId); 2358 } 2359 } 2360 return mAttachInfo.mAccessibilityFocusDrawable; 2361 } 2362 return null; 2363 } 2364 2365 void invalidateDisplayLists() { 2366 final ArrayList<DisplayList> displayLists = mDisplayLists; 2367 final int count = displayLists.size(); 2368 2369 for (int i = 0; i < count; i++) { 2370 final DisplayList displayList = displayLists.get(i); 2371 displayList.invalidate(); 2372 displayList.clear(); 2373 } 2374 2375 displayLists.clear(); 2376 } 2377 2378 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2379 final View.AttachInfo attachInfo = mAttachInfo; 2380 final Rect ci = attachInfo.mContentInsets; 2381 final Rect vi = attachInfo.mVisibleInsets; 2382 int scrollY = 0; 2383 boolean handled = false; 2384 2385 if (vi.left > ci.left || vi.top > ci.top 2386 || vi.right > ci.right || vi.bottom > ci.bottom) { 2387 // We'll assume that we aren't going to change the scroll 2388 // offset, since we want to avoid that unless it is actually 2389 // going to make the focus visible... otherwise we scroll 2390 // all over the place. 2391 scrollY = mScrollY; 2392 // We can be called for two different situations: during a draw, 2393 // to update the scroll position if the focus has changed (in which 2394 // case 'rectangle' is null), or in response to a 2395 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2396 // is non-null and we just want to scroll to whatever that 2397 // rectangle is). 2398 View focus = mRealFocusedView; 2399 2400 // When in touch mode, focus points to the previously focused view, 2401 // which may have been removed from the view hierarchy. The following 2402 // line checks whether the view is still in our hierarchy. 2403 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2404 mRealFocusedView = null; 2405 return false; 2406 } 2407 2408 if (focus != mLastScrolledFocus) { 2409 // If the focus has changed, then ignore any requests to scroll 2410 // to a rectangle; first we want to make sure the entire focus 2411 // view is visible. 2412 rectangle = null; 2413 } 2414 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2415 + " rectangle=" + rectangle + " ci=" + ci 2416 + " vi=" + vi); 2417 if (focus == mLastScrolledFocus && !mScrollMayChange 2418 && rectangle == null) { 2419 // Optimization: if the focus hasn't changed since last 2420 // time, and no layout has happened, then just leave things 2421 // as they are. 2422 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2423 + mScrollY + " vi=" + vi.toShortString()); 2424 } else if (focus != null) { 2425 // We need to determine if the currently focused view is 2426 // within the visible part of the window and, if not, apply 2427 // a pan so it can be seen. 2428 mLastScrolledFocus = focus; 2429 mScrollMayChange = false; 2430 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2431 // Try to find the rectangle from the focus view. 2432 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2433 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2434 + mView.getWidth() + " h=" + mView.getHeight() 2435 + " ci=" + ci.toShortString() 2436 + " vi=" + vi.toShortString()); 2437 if (rectangle == null) { 2438 focus.getFocusedRect(mTempRect); 2439 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2440 + ": focusRect=" + mTempRect.toShortString()); 2441 if (mView instanceof ViewGroup) { 2442 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2443 focus, mTempRect); 2444 } 2445 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2446 "Focus in window: focusRect=" 2447 + mTempRect.toShortString() 2448 + " visRect=" + mVisRect.toShortString()); 2449 } else { 2450 mTempRect.set(rectangle); 2451 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2452 "Request scroll to rect: " 2453 + mTempRect.toShortString() 2454 + " visRect=" + mVisRect.toShortString()); 2455 } 2456 if (mTempRect.intersect(mVisRect)) { 2457 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2458 "Focus window visible rect: " 2459 + mTempRect.toShortString()); 2460 if (mTempRect.height() > 2461 (mView.getHeight()-vi.top-vi.bottom)) { 2462 // If the focus simply is not going to fit, then 2463 // best is probably just to leave things as-is. 2464 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2465 "Too tall; leaving scrollY=" + scrollY); 2466 } else if ((mTempRect.top-scrollY) < vi.top) { 2467 scrollY -= vi.top - (mTempRect.top-scrollY); 2468 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2469 "Top covered; scrollY=" + scrollY); 2470 } else if ((mTempRect.bottom-scrollY) 2471 > (mView.getHeight()-vi.bottom)) { 2472 scrollY += (mTempRect.bottom-scrollY) 2473 - (mView.getHeight()-vi.bottom); 2474 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2475 "Bottom covered; scrollY=" + scrollY); 2476 } 2477 handled = true; 2478 } 2479 } 2480 } 2481 } 2482 2483 if (scrollY != mScrollY) { 2484 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2485 + mScrollY + " , new=" + scrollY); 2486 if (!immediate && mResizeBuffer == null) { 2487 if (mScroller == null) { 2488 mScroller = new Scroller(mView.getContext()); 2489 } 2490 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2491 } else if (mScroller != null) { 2492 mScroller.abortAnimation(); 2493 } 2494 mScrollY = scrollY; 2495 } 2496 2497 return handled; 2498 } 2499 2500 /** 2501 * @hide 2502 */ 2503 public View getAccessibilityFocusedHost() { 2504 return mAccessibilityFocusedHost; 2505 } 2506 2507 /** 2508 * @hide 2509 */ 2510 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2511 return mAccessibilityFocusedVirtualView; 2512 } 2513 2514 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2515 // If we have a virtual view with accessibility focus we need 2516 // to clear the focus and invalidate the virtual view bounds. 2517 if (mAccessibilityFocusedVirtualView != null) { 2518 2519 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2520 View focusHost = mAccessibilityFocusedHost; 2521 focusHost.clearAccessibilityFocusNoCallbacks(); 2522 2523 // Wipe the state of the current accessibility focus since 2524 // the call into the provider to clear accessibility focus 2525 // will fire an accessibility event which will end up calling 2526 // this method and we want to have clean state when this 2527 // invocation happens. 2528 mAccessibilityFocusedHost = null; 2529 mAccessibilityFocusedVirtualView = null; 2530 2531 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2532 if (provider != null) { 2533 // Invalidate the area of the cleared accessibility focus. 2534 focusNode.getBoundsInParent(mTempRect); 2535 focusHost.invalidate(mTempRect); 2536 // Clear accessibility focus in the virtual node. 2537 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2538 focusNode.getSourceNodeId()); 2539 provider.performAction(virtualNodeId, 2540 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2541 } 2542 focusNode.recycle(); 2543 } 2544 if (mAccessibilityFocusedHost != null) { 2545 // Clear accessibility focus in the view. 2546 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2547 } 2548 2549 // Set the new focus host and node. 2550 mAccessibilityFocusedHost = view; 2551 mAccessibilityFocusedVirtualView = node; 2552 } 2553 2554 public void requestChildFocus(View child, View focused) { 2555 checkThread(); 2556 2557 if (DEBUG_INPUT_RESIZE) { 2558 Log.v(TAG, "Request child focus: focus now " + focused); 2559 } 2560 2561 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2562 scheduleTraversals(); 2563 2564 mFocusedView = mRealFocusedView = focused; 2565 } 2566 2567 public void clearChildFocus(View child) { 2568 checkThread(); 2569 2570 if (DEBUG_INPUT_RESIZE) { 2571 Log.v(TAG, "Clearing child focus"); 2572 } 2573 2574 mOldFocusedView = mFocusedView; 2575 2576 // Invoke the listener only if there is no view to take focus 2577 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2578 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2579 } 2580 2581 mFocusedView = mRealFocusedView = null; 2582 } 2583 2584 @Override 2585 public ViewParent getParentForAccessibility() { 2586 return null; 2587 } 2588 2589 public void focusableViewAvailable(View v) { 2590 checkThread(); 2591 if (mView != null) { 2592 if (!mView.hasFocus()) { 2593 v.requestFocus(); 2594 } else { 2595 // the one case where will transfer focus away from the current one 2596 // is if the current view is a view group that prefers to give focus 2597 // to its children first AND the view is a descendant of it. 2598 mFocusedView = mView.findFocus(); 2599 boolean descendantsHaveDibsOnFocus = 2600 (mFocusedView instanceof ViewGroup) && 2601 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2602 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2603 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2604 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2605 v.requestFocus(); 2606 } 2607 } 2608 } 2609 } 2610 2611 public void recomputeViewAttributes(View child) { 2612 checkThread(); 2613 if (mView == child) { 2614 mAttachInfo.mRecomputeGlobalAttributes = true; 2615 if (!mWillDrawSoon) { 2616 scheduleTraversals(); 2617 } 2618 } 2619 } 2620 2621 void dispatchDetachedFromWindow() { 2622 if (mView != null && mView.mAttachInfo != null) { 2623 if (mAttachInfo.mHardwareRenderer != null && 2624 mAttachInfo.mHardwareRenderer.isEnabled()) { 2625 mAttachInfo.mHardwareRenderer.validate(); 2626 } 2627 mView.dispatchDetachedFromWindow(); 2628 } 2629 2630 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2631 mAccessibilityManager.removeAccessibilityStateChangeListener( 2632 mAccessibilityInteractionConnectionManager); 2633 removeSendWindowContentChangedCallback(); 2634 2635 destroyHardwareRenderer(); 2636 2637 setAccessibilityFocus(null, null); 2638 2639 mView = null; 2640 mAttachInfo.mRootView = null; 2641 mAttachInfo.mSurface = null; 2642 2643 mSurface.release(); 2644 2645 if (mInputQueueCallback != null && mInputQueue != null) { 2646 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2647 mInputQueueCallback = null; 2648 mInputQueue = null; 2649 } else if (mInputEventReceiver != null) { 2650 mInputEventReceiver.dispose(); 2651 mInputEventReceiver = null; 2652 } 2653 try { 2654 sWindowSession.remove(mWindow); 2655 } catch (RemoteException e) { 2656 } 2657 2658 // Dispose the input channel after removing the window so the Window Manager 2659 // doesn't interpret the input channel being closed as an abnormal termination. 2660 if (mInputChannel != null) { 2661 mInputChannel.dispose(); 2662 mInputChannel = null; 2663 } 2664 2665 unscheduleTraversals(); 2666 } 2667 2668 void updateConfiguration(Configuration config, boolean force) { 2669 if (DEBUG_CONFIGURATION) Log.v(TAG, 2670 "Applying new config to window " 2671 + mWindowAttributes.getTitle() 2672 + ": " + config); 2673 2674 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2675 if (ci != null) { 2676 config = new Configuration(config); 2677 ci.applyToConfiguration(mNoncompatDensity, config); 2678 } 2679 2680 synchronized (sConfigCallbacks) { 2681 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2682 sConfigCallbacks.get(i).onConfigurationChanged(config); 2683 } 2684 } 2685 if (mView != null) { 2686 // At this point the resources have been updated to 2687 // have the most recent config, whatever that is. Use 2688 // the one in them which may be newer. 2689 config = mView.getResources().getConfiguration(); 2690 if (force || mLastConfiguration.diff(config) != 0) { 2691 mLastConfiguration.setTo(config); 2692 mView.dispatchConfigurationChanged(config); 2693 } 2694 } 2695 } 2696 2697 /** 2698 * Return true if child is an ancestor of parent, (or equal to the parent). 2699 */ 2700 public static boolean isViewDescendantOf(View child, View parent) { 2701 if (child == parent) { 2702 return true; 2703 } 2704 2705 final ViewParent theParent = child.getParent(); 2706 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2707 } 2708 2709 private static void forceLayout(View view) { 2710 view.forceLayout(); 2711 if (view instanceof ViewGroup) { 2712 ViewGroup group = (ViewGroup) view; 2713 final int count = group.getChildCount(); 2714 for (int i = 0; i < count; i++) { 2715 forceLayout(group.getChildAt(i)); 2716 } 2717 } 2718 } 2719 2720 private final static int MSG_INVALIDATE = 1; 2721 private final static int MSG_INVALIDATE_RECT = 2; 2722 private final static int MSG_DIE = 3; 2723 private final static int MSG_RESIZED = 4; 2724 private final static int MSG_RESIZED_REPORT = 5; 2725 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2726 private final static int MSG_DISPATCH_KEY = 7; 2727 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2728 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2729 private final static int MSG_IME_FINISHED_EVENT = 10; 2730 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2731 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2732 private final static int MSG_CHECK_FOCUS = 13; 2733 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2734 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2735 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2736 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2737 private final static int MSG_UPDATE_CONFIGURATION = 18; 2738 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2739 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2740 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2741 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2742 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2743 private final static int MSG_INVALIDATE_WORLD = 24; 2744 private final static int MSG_WINDOW_MOVED = 25; 2745 2746 final class ViewRootHandler extends Handler { 2747 @Override 2748 public String getMessageName(Message message) { 2749 switch (message.what) { 2750 case MSG_INVALIDATE: 2751 return "MSG_INVALIDATE"; 2752 case MSG_INVALIDATE_RECT: 2753 return "MSG_INVALIDATE_RECT"; 2754 case MSG_DIE: 2755 return "MSG_DIE"; 2756 case MSG_RESIZED: 2757 return "MSG_RESIZED"; 2758 case MSG_RESIZED_REPORT: 2759 return "MSG_RESIZED_REPORT"; 2760 case MSG_WINDOW_FOCUS_CHANGED: 2761 return "MSG_WINDOW_FOCUS_CHANGED"; 2762 case MSG_DISPATCH_KEY: 2763 return "MSG_DISPATCH_KEY"; 2764 case MSG_DISPATCH_APP_VISIBILITY: 2765 return "MSG_DISPATCH_APP_VISIBILITY"; 2766 case MSG_DISPATCH_GET_NEW_SURFACE: 2767 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2768 case MSG_IME_FINISHED_EVENT: 2769 return "MSG_IME_FINISHED_EVENT"; 2770 case MSG_DISPATCH_KEY_FROM_IME: 2771 return "MSG_DISPATCH_KEY_FROM_IME"; 2772 case MSG_FINISH_INPUT_CONNECTION: 2773 return "MSG_FINISH_INPUT_CONNECTION"; 2774 case MSG_CHECK_FOCUS: 2775 return "MSG_CHECK_FOCUS"; 2776 case MSG_CLOSE_SYSTEM_DIALOGS: 2777 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2778 case MSG_DISPATCH_DRAG_EVENT: 2779 return "MSG_DISPATCH_DRAG_EVENT"; 2780 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2781 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2782 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2783 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2784 case MSG_UPDATE_CONFIGURATION: 2785 return "MSG_UPDATE_CONFIGURATION"; 2786 case MSG_PROCESS_INPUT_EVENTS: 2787 return "MSG_PROCESS_INPUT_EVENTS"; 2788 case MSG_DISPATCH_SCREEN_STATE: 2789 return "MSG_DISPATCH_SCREEN_STATE"; 2790 case MSG_INVALIDATE_DISPLAY_LIST: 2791 return "MSG_INVALIDATE_DISPLAY_LIST"; 2792 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2793 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2794 case MSG_DISPATCH_DONE_ANIMATING: 2795 return "MSG_DISPATCH_DONE_ANIMATING"; 2796 case MSG_WINDOW_MOVED: 2797 return "MSG_WINDOW_MOVED"; 2798 } 2799 return super.getMessageName(message); 2800 } 2801 2802 @Override 2803 public void handleMessage(Message msg) { 2804 switch (msg.what) { 2805 case MSG_INVALIDATE: 2806 ((View) msg.obj).invalidate(); 2807 break; 2808 case MSG_INVALIDATE_RECT: 2809 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2810 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2811 info.release(); 2812 break; 2813 case MSG_IME_FINISHED_EVENT: 2814 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2815 break; 2816 case MSG_PROCESS_INPUT_EVENTS: 2817 mProcessInputEventsScheduled = false; 2818 doProcessInputEvents(); 2819 break; 2820 case MSG_DISPATCH_APP_VISIBILITY: 2821 handleAppVisibility(msg.arg1 != 0); 2822 break; 2823 case MSG_DISPATCH_GET_NEW_SURFACE: 2824 handleGetNewSurface(); 2825 break; 2826 case MSG_RESIZED: 2827 ResizedInfo ri = (ResizedInfo)msg.obj; 2828 2829 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2830 && mPendingContentInsets.equals(ri.contentInsets) 2831 && mPendingVisibleInsets.equals(ri.visibleInsets) 2832 && ((ResizedInfo)msg.obj).newConfig == null) { 2833 break; 2834 } 2835 // fall through... 2836 case MSG_RESIZED_REPORT: 2837 if (mAdded) { 2838 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2839 if (config != null) { 2840 updateConfiguration(config, false); 2841 } 2842 // TODO: Should left/top stay unchanged and only change the right/bottom? 2843 mWinFrame.left = 0; 2844 mWinFrame.right = msg.arg1; 2845 mWinFrame.top = 0; 2846 mWinFrame.bottom = msg.arg2; 2847 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2848 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2849 if (msg.what == MSG_RESIZED_REPORT) { 2850 mReportNextDraw = true; 2851 } 2852 2853 if (mView != null) { 2854 forceLayout(mView); 2855 } 2856 requestLayout(); 2857 } 2858 break; 2859 case MSG_WINDOW_MOVED: 2860 if (mAdded) { 2861 final int w = mWinFrame.width(); 2862 final int h = mWinFrame.height(); 2863 final int l = msg.arg1; 2864 final int t = msg.arg2; 2865 mWinFrame.left = l; 2866 mWinFrame.right = l + w; 2867 mWinFrame.top = t; 2868 mWinFrame.bottom = t + h; 2869 2870 if (mView != null) { 2871 forceLayout(mView); 2872 } 2873 requestLayout(); 2874 } 2875 break; 2876 case MSG_WINDOW_FOCUS_CHANGED: { 2877 if (mAdded) { 2878 boolean hasWindowFocus = msg.arg1 != 0; 2879 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2880 2881 profileRendering(hasWindowFocus); 2882 2883 if (hasWindowFocus) { 2884 boolean inTouchMode = msg.arg2 != 0; 2885 ensureTouchModeLocally(inTouchMode); 2886 2887 if (mAttachInfo.mHardwareRenderer != null && 2888 mSurface != null && mSurface.isValid()) { 2889 mFullRedrawNeeded = true; 2890 try { 2891 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2892 mHolder.getSurface()); 2893 } catch (Surface.OutOfResourcesException e) { 2894 Log.e(TAG, "OutOfResourcesException locking surface", e); 2895 try { 2896 if (!sWindowSession.outOfMemory(mWindow)) { 2897 Slog.w(TAG, "No processes killed for memory; killing self"); 2898 Process.killProcess(Process.myPid()); 2899 } 2900 } catch (RemoteException ex) { 2901 } 2902 // Retry in a bit. 2903 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2904 return; 2905 } 2906 } 2907 } 2908 2909 mLastWasImTarget = WindowManager.LayoutParams 2910 .mayUseInputMethod(mWindowAttributes.flags); 2911 2912 InputMethodManager imm = InputMethodManager.peekInstance(); 2913 if (mView != null) { 2914 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2915 imm.startGettingWindowFocus(mView); 2916 } 2917 mAttachInfo.mKeyDispatchState.reset(); 2918 mView.dispatchWindowFocusChanged(hasWindowFocus); 2919 } 2920 2921 // Note: must be done after the focus change callbacks, 2922 // so all of the view state is set up correctly. 2923 if (hasWindowFocus) { 2924 if (imm != null && mLastWasImTarget) { 2925 imm.onWindowFocus(mView, mView.findFocus(), 2926 mWindowAttributes.softInputMode, 2927 !mHasHadWindowFocus, mWindowAttributes.flags); 2928 } 2929 // Clear the forward bit. We can just do this directly, since 2930 // the window manager doesn't care about it. 2931 mWindowAttributes.softInputMode &= 2932 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2933 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2934 .softInputMode &= 2935 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2936 mHasHadWindowFocus = true; 2937 } 2938 2939 setAccessibilityFocus(null, null); 2940 2941 if (mView != null && mAccessibilityManager.isEnabled()) { 2942 if (hasWindowFocus) { 2943 mView.sendAccessibilityEvent( 2944 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2945 } 2946 } 2947 } 2948 } break; 2949 case MSG_DIE: 2950 doDie(); 2951 break; 2952 case MSG_DISPATCH_KEY: { 2953 KeyEvent event = (KeyEvent)msg.obj; 2954 enqueueInputEvent(event, null, 0, true); 2955 } break; 2956 case MSG_DISPATCH_KEY_FROM_IME: { 2957 if (LOCAL_LOGV) Log.v( 2958 TAG, "Dispatching key " 2959 + msg.obj + " from IME to " + mView); 2960 KeyEvent event = (KeyEvent)msg.obj; 2961 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2962 // The IME is trying to say this event is from the 2963 // system! Bad bad bad! 2964 //noinspection UnusedAssignment 2965 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2966 } 2967 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2968 } break; 2969 case MSG_FINISH_INPUT_CONNECTION: { 2970 InputMethodManager imm = InputMethodManager.peekInstance(); 2971 if (imm != null) { 2972 imm.reportFinishInputConnection((InputConnection)msg.obj); 2973 } 2974 } break; 2975 case MSG_CHECK_FOCUS: { 2976 InputMethodManager imm = InputMethodManager.peekInstance(); 2977 if (imm != null) { 2978 imm.checkFocus(); 2979 } 2980 } break; 2981 case MSG_CLOSE_SYSTEM_DIALOGS: { 2982 if (mView != null) { 2983 mView.onCloseSystemDialogs((String)msg.obj); 2984 } 2985 } break; 2986 case MSG_DISPATCH_DRAG_EVENT: 2987 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2988 DragEvent event = (DragEvent)msg.obj; 2989 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2990 handleDragEvent(event); 2991 } break; 2992 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2993 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2994 } break; 2995 case MSG_UPDATE_CONFIGURATION: { 2996 Configuration config = (Configuration)msg.obj; 2997 if (config.isOtherSeqNewer(mLastConfiguration)) { 2998 config = mLastConfiguration; 2999 } 3000 updateConfiguration(config, false); 3001 } break; 3002 case MSG_DISPATCH_SCREEN_STATE: { 3003 if (mView != null) { 3004 handleScreenStateChange(msg.arg1 == 1); 3005 } 3006 } break; 3007 case MSG_INVALIDATE_DISPLAY_LIST: { 3008 invalidateDisplayLists(); 3009 } break; 3010 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3011 setAccessibilityFocus(null, null); 3012 } break; 3013 case MSG_DISPATCH_DONE_ANIMATING: { 3014 handleDispatchDoneAnimating(); 3015 } break; 3016 case MSG_INVALIDATE_WORLD: { 3017 invalidateWorld(mView); 3018 } break; 3019 } 3020 } 3021 } 3022 3023 final ViewRootHandler mHandler = new ViewRootHandler(); 3024 3025 /** 3026 * Something in the current window tells us we need to change the touch mode. For 3027 * example, we are not in touch mode, and the user touches the screen. 3028 * 3029 * If the touch mode has changed, tell the window manager, and handle it locally. 3030 * 3031 * @param inTouchMode Whether we want to be in touch mode. 3032 * @return True if the touch mode changed and focus changed was changed as a result 3033 */ 3034 boolean ensureTouchMode(boolean inTouchMode) { 3035 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3036 + "touch mode is " + mAttachInfo.mInTouchMode); 3037 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3038 3039 // tell the window manager 3040 try { 3041 sWindowSession.setInTouchMode(inTouchMode); 3042 } catch (RemoteException e) { 3043 throw new RuntimeException(e); 3044 } 3045 3046 // handle the change 3047 return ensureTouchModeLocally(inTouchMode); 3048 } 3049 3050 /** 3051 * Ensure that the touch mode for this window is set, and if it is changing, 3052 * take the appropriate action. 3053 * @param inTouchMode Whether we want to be in touch mode. 3054 * @return True if the touch mode changed and focus changed was changed as a result 3055 */ 3056 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3057 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3058 + "touch mode is " + mAttachInfo.mInTouchMode); 3059 3060 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3061 3062 mAttachInfo.mInTouchMode = inTouchMode; 3063 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3064 3065 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3066 } 3067 3068 private boolean enterTouchMode() { 3069 if (mView != null) { 3070 if (mView.hasFocus()) { 3071 // note: not relying on mFocusedView here because this could 3072 // be when the window is first being added, and mFocused isn't 3073 // set yet. 3074 final View focused = mView.findFocus(); 3075 if (focused != null && !focused.isFocusableInTouchMode()) { 3076 3077 final ViewGroup ancestorToTakeFocus = 3078 findAncestorToTakeFocusInTouchMode(focused); 3079 if (ancestorToTakeFocus != null) { 3080 // there is an ancestor that wants focus after its descendants that 3081 // is focusable in touch mode.. give it focus 3082 return ancestorToTakeFocus.requestFocus(); 3083 } else { 3084 // nothing appropriate to have focus in touch mode, clear it out 3085 mView.unFocus(); 3086 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3087 mFocusedView = null; 3088 mOldFocusedView = null; 3089 return true; 3090 } 3091 } 3092 } 3093 } 3094 return false; 3095 } 3096 3097 /** 3098 * Find an ancestor of focused that wants focus after its descendants and is 3099 * focusable in touch mode. 3100 * @param focused The currently focused view. 3101 * @return An appropriate view, or null if no such view exists. 3102 */ 3103 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3104 ViewParent parent = focused.getParent(); 3105 while (parent instanceof ViewGroup) { 3106 final ViewGroup vgParent = (ViewGroup) parent; 3107 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3108 && vgParent.isFocusableInTouchMode()) { 3109 return vgParent; 3110 } 3111 if (vgParent.isRootNamespace()) { 3112 return null; 3113 } else { 3114 parent = vgParent.getParent(); 3115 } 3116 } 3117 return null; 3118 } 3119 3120 private boolean leaveTouchMode() { 3121 if (mView != null) { 3122 if (mView.hasFocus()) { 3123 // i learned the hard way to not trust mFocusedView :) 3124 mFocusedView = mView.findFocus(); 3125 if (!(mFocusedView instanceof ViewGroup)) { 3126 // some view has focus, let it keep it 3127 return false; 3128 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3129 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3130 // some view group has focus, and doesn't prefer its children 3131 // over itself for focus, so let them keep it. 3132 return false; 3133 } 3134 } 3135 3136 // find the best view to give focus to in this brave new non-touch-mode 3137 // world 3138 final View focused = focusSearch(null, View.FOCUS_DOWN); 3139 if (focused != null) { 3140 return focused.requestFocus(View.FOCUS_DOWN); 3141 } 3142 } 3143 return false; 3144 } 3145 3146 private void deliverInputEvent(QueuedInputEvent q) { 3147 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3148 try { 3149 if (q.mEvent instanceof KeyEvent) { 3150 deliverKeyEvent(q); 3151 } else { 3152 final int source = q.mEvent.getSource(); 3153 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3154 deliverPointerEvent(q); 3155 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3156 deliverTrackballEvent(q); 3157 } else { 3158 deliverGenericMotionEvent(q); 3159 } 3160 } 3161 } finally { 3162 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3163 } 3164 } 3165 3166 private void deliverPointerEvent(QueuedInputEvent q) { 3167 final MotionEvent event = (MotionEvent)q.mEvent; 3168 final boolean isTouchEvent = event.isTouchEvent(); 3169 if (mInputEventConsistencyVerifier != null) { 3170 if (isTouchEvent) { 3171 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3172 } else { 3173 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3174 } 3175 } 3176 3177 // If there is no view, then the event will not be handled. 3178 if (mView == null || !mAdded) { 3179 finishInputEvent(q, false); 3180 return; 3181 } 3182 3183 // Translate the pointer event for compatibility, if needed. 3184 if (mTranslator != null) { 3185 mTranslator.translateEventInScreenToAppWindow(event); 3186 } 3187 3188 // Enter touch mode on down or scroll. 3189 final int action = event.getAction(); 3190 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3191 ensureTouchMode(true); 3192 } 3193 3194 // Offset the scroll position. 3195 if (mCurScrollY != 0) { 3196 event.offsetLocation(0, mCurScrollY); 3197 } 3198 if (MEASURE_LATENCY) { 3199 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3200 } 3201 3202 // Remember the touch position for possible drag-initiation. 3203 if (isTouchEvent) { 3204 mLastTouchPoint.x = event.getRawX(); 3205 mLastTouchPoint.y = event.getRawY(); 3206 } 3207 3208 // Dispatch touch to view hierarchy. 3209 boolean handled = mView.dispatchPointerEvent(event); 3210 if (MEASURE_LATENCY) { 3211 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3212 } 3213 if (handled) { 3214 finishInputEvent(q, true); 3215 return; 3216 } 3217 3218 // Pointer event was unhandled. 3219 finishInputEvent(q, false); 3220 } 3221 3222 private void deliverTrackballEvent(QueuedInputEvent q) { 3223 final MotionEvent event = (MotionEvent)q.mEvent; 3224 if (mInputEventConsistencyVerifier != null) { 3225 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3226 } 3227 3228 // If there is no view, then the event will not be handled. 3229 if (mView == null || !mAdded) { 3230 finishInputEvent(q, false); 3231 return; 3232 } 3233 3234 // Deliver the trackball event to the view. 3235 if (mView.dispatchTrackballEvent(event)) { 3236 // If we reach this, we delivered a trackball event to mView and 3237 // mView consumed it. Because we will not translate the trackball 3238 // event into a key event, touch mode will not exit, so we exit 3239 // touch mode here. 3240 ensureTouchMode(false); 3241 3242 finishInputEvent(q, true); 3243 mLastTrackballTime = Integer.MIN_VALUE; 3244 return; 3245 } 3246 3247 // Translate the trackball event into DPAD keys and try to deliver those. 3248 final TrackballAxis x = mTrackballAxisX; 3249 final TrackballAxis y = mTrackballAxisY; 3250 3251 long curTime = SystemClock.uptimeMillis(); 3252 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3253 // It has been too long since the last movement, 3254 // so restart at the beginning. 3255 x.reset(0); 3256 y.reset(0); 3257 mLastTrackballTime = curTime; 3258 } 3259 3260 final int action = event.getAction(); 3261 final int metaState = event.getMetaState(); 3262 switch (action) { 3263 case MotionEvent.ACTION_DOWN: 3264 x.reset(2); 3265 y.reset(2); 3266 enqueueInputEvent(new KeyEvent(curTime, curTime, 3267 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3268 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3269 InputDevice.SOURCE_KEYBOARD)); 3270 break; 3271 case MotionEvent.ACTION_UP: 3272 x.reset(2); 3273 y.reset(2); 3274 enqueueInputEvent(new KeyEvent(curTime, curTime, 3275 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3276 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3277 InputDevice.SOURCE_KEYBOARD)); 3278 break; 3279 } 3280 3281 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3282 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3283 + " move=" + event.getX() 3284 + " / Y=" + y.position + " step=" 3285 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3286 + " move=" + event.getY()); 3287 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3288 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3289 3290 // Generate DPAD events based on the trackball movement. 3291 // We pick the axis that has moved the most as the direction of 3292 // the DPAD. When we generate DPAD events for one axis, then the 3293 // other axis is reset -- we don't want to perform DPAD jumps due 3294 // to slight movements in the trackball when making major movements 3295 // along the other axis. 3296 int keycode = 0; 3297 int movement = 0; 3298 float accel = 1; 3299 if (xOff > yOff) { 3300 movement = x.generate((2/event.getXPrecision())); 3301 if (movement != 0) { 3302 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3303 : KeyEvent.KEYCODE_DPAD_LEFT; 3304 accel = x.acceleration; 3305 y.reset(2); 3306 } 3307 } else if (yOff > 0) { 3308 movement = y.generate((2/event.getYPrecision())); 3309 if (movement != 0) { 3310 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3311 : KeyEvent.KEYCODE_DPAD_UP; 3312 accel = y.acceleration; 3313 x.reset(2); 3314 } 3315 } 3316 3317 if (keycode != 0) { 3318 if (movement < 0) movement = -movement; 3319 int accelMovement = (int)(movement * accel); 3320 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3321 + " accelMovement=" + accelMovement 3322 + " accel=" + accel); 3323 if (accelMovement > movement) { 3324 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3325 + keycode); 3326 movement--; 3327 int repeatCount = accelMovement - movement; 3328 enqueueInputEvent(new KeyEvent(curTime, curTime, 3329 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3330 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3331 InputDevice.SOURCE_KEYBOARD)); 3332 } 3333 while (movement > 0) { 3334 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3335 + keycode); 3336 movement--; 3337 curTime = SystemClock.uptimeMillis(); 3338 enqueueInputEvent(new KeyEvent(curTime, curTime, 3339 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3340 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3341 InputDevice.SOURCE_KEYBOARD)); 3342 enqueueInputEvent(new KeyEvent(curTime, curTime, 3343 KeyEvent.ACTION_UP, keycode, 0, metaState, 3344 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3345 InputDevice.SOURCE_KEYBOARD)); 3346 } 3347 mLastTrackballTime = curTime; 3348 } 3349 3350 // Unfortunately we can't tell whether the application consumed the keys, so 3351 // we always consider the trackball event handled. 3352 finishInputEvent(q, true); 3353 } 3354 3355 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3356 final MotionEvent event = (MotionEvent)q.mEvent; 3357 if (mInputEventConsistencyVerifier != null) { 3358 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3359 } 3360 3361 final int source = event.getSource(); 3362 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3363 3364 // If there is no view, then the event will not be handled. 3365 if (mView == null || !mAdded) { 3366 if (isJoystick) { 3367 updateJoystickDirection(event, false); 3368 } 3369 finishInputEvent(q, false); 3370 return; 3371 } 3372 3373 // Deliver the event to the view. 3374 if (mView.dispatchGenericMotionEvent(event)) { 3375 if (isJoystick) { 3376 updateJoystickDirection(event, false); 3377 } 3378 finishInputEvent(q, true); 3379 return; 3380 } 3381 3382 if (isJoystick) { 3383 // Translate the joystick event into DPAD keys and try to deliver those. 3384 updateJoystickDirection(event, true); 3385 finishInputEvent(q, true); 3386 } else { 3387 finishInputEvent(q, false); 3388 } 3389 } 3390 3391 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3392 final long time = event.getEventTime(); 3393 final int metaState = event.getMetaState(); 3394 final int deviceId = event.getDeviceId(); 3395 final int source = event.getSource(); 3396 3397 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3398 if (xDirection == 0) { 3399 xDirection = joystickAxisValueToDirection(event.getX()); 3400 } 3401 3402 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3403 if (yDirection == 0) { 3404 yDirection = joystickAxisValueToDirection(event.getY()); 3405 } 3406 3407 if (xDirection != mLastJoystickXDirection) { 3408 if (mLastJoystickXKeyCode != 0) { 3409 enqueueInputEvent(new KeyEvent(time, time, 3410 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3411 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3412 mLastJoystickXKeyCode = 0; 3413 } 3414 3415 mLastJoystickXDirection = xDirection; 3416 3417 if (xDirection != 0 && synthesizeNewKeys) { 3418 mLastJoystickXKeyCode = xDirection > 0 3419 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3420 enqueueInputEvent(new KeyEvent(time, time, 3421 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3422 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3423 } 3424 } 3425 3426 if (yDirection != mLastJoystickYDirection) { 3427 if (mLastJoystickYKeyCode != 0) { 3428 enqueueInputEvent(new KeyEvent(time, time, 3429 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3430 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3431 mLastJoystickYKeyCode = 0; 3432 } 3433 3434 mLastJoystickYDirection = yDirection; 3435 3436 if (yDirection != 0 && synthesizeNewKeys) { 3437 mLastJoystickYKeyCode = yDirection > 0 3438 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3439 enqueueInputEvent(new KeyEvent(time, time, 3440 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3441 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3442 } 3443 } 3444 } 3445 3446 private static int joystickAxisValueToDirection(float value) { 3447 if (value >= 0.5f) { 3448 return 1; 3449 } else if (value <= -0.5f) { 3450 return -1; 3451 } else { 3452 return 0; 3453 } 3454 } 3455 3456 /** 3457 * Returns true if the key is used for keyboard navigation. 3458 * @param keyEvent The key event. 3459 * @return True if the key is used for keyboard navigation. 3460 */ 3461 private static boolean isNavigationKey(KeyEvent keyEvent) { 3462 switch (keyEvent.getKeyCode()) { 3463 case KeyEvent.KEYCODE_DPAD_LEFT: 3464 case KeyEvent.KEYCODE_DPAD_RIGHT: 3465 case KeyEvent.KEYCODE_DPAD_UP: 3466 case KeyEvent.KEYCODE_DPAD_DOWN: 3467 case KeyEvent.KEYCODE_DPAD_CENTER: 3468 case KeyEvent.KEYCODE_PAGE_UP: 3469 case KeyEvent.KEYCODE_PAGE_DOWN: 3470 case KeyEvent.KEYCODE_MOVE_HOME: 3471 case KeyEvent.KEYCODE_MOVE_END: 3472 case KeyEvent.KEYCODE_TAB: 3473 case KeyEvent.KEYCODE_SPACE: 3474 case KeyEvent.KEYCODE_ENTER: 3475 return true; 3476 } 3477 return false; 3478 } 3479 3480 /** 3481 * Returns true if the key is used for typing. 3482 * @param keyEvent The key event. 3483 * @return True if the key is used for typing. 3484 */ 3485 private static boolean isTypingKey(KeyEvent keyEvent) { 3486 return keyEvent.getUnicodeChar() > 0; 3487 } 3488 3489 /** 3490 * See if the key event means we should leave touch mode (and leave touch mode if so). 3491 * @param event The key event. 3492 * @return Whether this key event should be consumed (meaning the act of 3493 * leaving touch mode alone is considered the event). 3494 */ 3495 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3496 // Only relevant in touch mode. 3497 if (!mAttachInfo.mInTouchMode) { 3498 return false; 3499 } 3500 3501 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3502 final int action = event.getAction(); 3503 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3504 return false; 3505 } 3506 3507 // Don't leave touch mode if the IME told us not to. 3508 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3509 return false; 3510 } 3511 3512 // If the key can be used for keyboard navigation then leave touch mode 3513 // and select a focused view if needed (in ensureTouchMode). 3514 // When a new focused view is selected, we consume the navigation key because 3515 // navigation doesn't make much sense unless a view already has focus so 3516 // the key's purpose is to set focus. 3517 if (isNavigationKey(event)) { 3518 return ensureTouchMode(false); 3519 } 3520 3521 // If the key can be used for typing then leave touch mode 3522 // and select a focused view if needed (in ensureTouchMode). 3523 // Always allow the view to process the typing key. 3524 if (isTypingKey(event)) { 3525 ensureTouchMode(false); 3526 return false; 3527 } 3528 3529 return false; 3530 } 3531 3532 private void deliverKeyEvent(QueuedInputEvent q) { 3533 final KeyEvent event = (KeyEvent)q.mEvent; 3534 if (mInputEventConsistencyVerifier != null) { 3535 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3536 } 3537 3538 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3539 // If there is no view, then the event will not be handled. 3540 if (mView == null || !mAdded) { 3541 finishInputEvent(q, false); 3542 return; 3543 } 3544 3545 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3546 3547 // Perform predispatching before the IME. 3548 if (mView.dispatchKeyEventPreIme(event)) { 3549 finishInputEvent(q, true); 3550 return; 3551 } 3552 3553 // Dispatch to the IME before propagating down the view hierarchy. 3554 // The IME will eventually call back into handleImeFinishedEvent. 3555 if (mLastWasImTarget) { 3556 InputMethodManager imm = InputMethodManager.peekInstance(); 3557 if (imm != null) { 3558 final int seq = event.getSequenceNumber(); 3559 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3560 + seq + " event=" + event); 3561 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3562 return; 3563 } 3564 } 3565 } 3566 3567 // Not dispatching to IME, continue with post IME actions. 3568 deliverKeyEventPostIme(q); 3569 } 3570 3571 void handleImeFinishedEvent(int seq, boolean handled) { 3572 final QueuedInputEvent q = mCurrentInputEvent; 3573 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3574 final KeyEvent event = (KeyEvent)q.mEvent; 3575 if (DEBUG_IMF) { 3576 Log.v(TAG, "IME finished event: seq=" + seq 3577 + " handled=" + handled + " event=" + event); 3578 } 3579 if (handled) { 3580 finishInputEvent(q, true); 3581 } else { 3582 deliverKeyEventPostIme(q); 3583 } 3584 } else { 3585 if (DEBUG_IMF) { 3586 Log.v(TAG, "IME finished event: seq=" + seq 3587 + " handled=" + handled + ", event not found!"); 3588 } 3589 } 3590 } 3591 3592 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3593 final KeyEvent event = (KeyEvent)q.mEvent; 3594 3595 // If the view went away, then the event will not be handled. 3596 if (mView == null || !mAdded) { 3597 finishInputEvent(q, false); 3598 return; 3599 } 3600 3601 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3602 if (checkForLeavingTouchModeAndConsume(event)) { 3603 finishInputEvent(q, true); 3604 return; 3605 } 3606 3607 // Make sure the fallback event policy sees all keys that will be delivered to the 3608 // view hierarchy. 3609 mFallbackEventHandler.preDispatchKeyEvent(event); 3610 3611 // Deliver the key to the view hierarchy. 3612 if (mView.dispatchKeyEvent(event)) { 3613 finishInputEvent(q, true); 3614 return; 3615 } 3616 3617 // If the Control modifier is held, try to interpret the key as a shortcut. 3618 if (event.getAction() == KeyEvent.ACTION_DOWN 3619 && event.isCtrlPressed() 3620 && event.getRepeatCount() == 0 3621 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3622 if (mView.dispatchKeyShortcutEvent(event)) { 3623 finishInputEvent(q, true); 3624 return; 3625 } 3626 } 3627 3628 // Apply the fallback event policy. 3629 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3630 finishInputEvent(q, true); 3631 return; 3632 } 3633 3634 // Handle automatic focus changes. 3635 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3636 int direction = 0; 3637 switch (event.getKeyCode()) { 3638 case KeyEvent.KEYCODE_DPAD_LEFT: 3639 if (event.hasNoModifiers()) { 3640 direction = View.FOCUS_LEFT; 3641 } 3642 break; 3643 case KeyEvent.KEYCODE_DPAD_RIGHT: 3644 if (event.hasNoModifiers()) { 3645 direction = View.FOCUS_RIGHT; 3646 } 3647 break; 3648 case KeyEvent.KEYCODE_DPAD_UP: 3649 if (event.hasNoModifiers()) { 3650 direction = View.FOCUS_UP; 3651 } 3652 break; 3653 case KeyEvent.KEYCODE_DPAD_DOWN: 3654 if (event.hasNoModifiers()) { 3655 direction = View.FOCUS_DOWN; 3656 } 3657 break; 3658 case KeyEvent.KEYCODE_TAB: 3659 if (event.hasNoModifiers()) { 3660 direction = View.FOCUS_FORWARD; 3661 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3662 direction = View.FOCUS_BACKWARD; 3663 } 3664 break; 3665 } 3666 if (direction != 0) { 3667 View focused = mView.findFocus(); 3668 if (focused != null) { 3669 View v = focused.focusSearch(direction); 3670 if (v != null && v != focused) { 3671 // do the math the get the interesting rect 3672 // of previous focused into the coord system of 3673 // newly focused view 3674 focused.getFocusedRect(mTempRect); 3675 if (mView instanceof ViewGroup) { 3676 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3677 focused, mTempRect); 3678 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3679 v, mTempRect); 3680 } 3681 if (v.requestFocus(direction, mTempRect)) { 3682 playSoundEffect(SoundEffectConstants 3683 .getContantForFocusDirection(direction)); 3684 finishInputEvent(q, true); 3685 return; 3686 } 3687 } 3688 3689 // Give the focused view a last chance to handle the dpad key. 3690 if (mView.dispatchUnhandledMove(focused, direction)) { 3691 finishInputEvent(q, true); 3692 return; 3693 } 3694 } 3695 } 3696 } 3697 3698 // Key was unhandled. 3699 finishInputEvent(q, false); 3700 } 3701 3702 /* drag/drop */ 3703 void setLocalDragState(Object obj) { 3704 mLocalDragState = obj; 3705 } 3706 3707 private void handleDragEvent(DragEvent event) { 3708 // From the root, only drag start/end/location are dispatched. entered/exited 3709 // are determined and dispatched by the viewgroup hierarchy, who then report 3710 // that back here for ultimate reporting back to the framework. 3711 if (mView != null && mAdded) { 3712 final int what = event.mAction; 3713 3714 if (what == DragEvent.ACTION_DRAG_EXITED) { 3715 // A direct EXITED event means that the window manager knows we've just crossed 3716 // a window boundary, so the current drag target within this one must have 3717 // just been exited. Send it the usual notifications and then we're done 3718 // for now. 3719 mView.dispatchDragEvent(event); 3720 } else { 3721 // Cache the drag description when the operation starts, then fill it in 3722 // on subsequent calls as a convenience 3723 if (what == DragEvent.ACTION_DRAG_STARTED) { 3724 mCurrentDragView = null; // Start the current-recipient tracking 3725 mDragDescription = event.mClipDescription; 3726 } else { 3727 event.mClipDescription = mDragDescription; 3728 } 3729 3730 // For events with a [screen] location, translate into window coordinates 3731 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3732 mDragPoint.set(event.mX, event.mY); 3733 if (mTranslator != null) { 3734 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3735 } 3736 3737 if (mCurScrollY != 0) { 3738 mDragPoint.offset(0, mCurScrollY); 3739 } 3740 3741 event.mX = mDragPoint.x; 3742 event.mY = mDragPoint.y; 3743 } 3744 3745 // Remember who the current drag target is pre-dispatch 3746 final View prevDragView = mCurrentDragView; 3747 3748 // Now dispatch the drag/drop event 3749 boolean result = mView.dispatchDragEvent(event); 3750 3751 // If we changed apparent drag target, tell the OS about it 3752 if (prevDragView != mCurrentDragView) { 3753 try { 3754 if (prevDragView != null) { 3755 sWindowSession.dragRecipientExited(mWindow); 3756 } 3757 if (mCurrentDragView != null) { 3758 sWindowSession.dragRecipientEntered(mWindow); 3759 } 3760 } catch (RemoteException e) { 3761 Slog.e(TAG, "Unable to note drag target change"); 3762 } 3763 } 3764 3765 // Report the drop result when we're done 3766 if (what == DragEvent.ACTION_DROP) { 3767 mDragDescription = null; 3768 try { 3769 Log.i(TAG, "Reporting drop result: " + result); 3770 sWindowSession.reportDropResult(mWindow, result); 3771 } catch (RemoteException e) { 3772 Log.e(TAG, "Unable to report drop result"); 3773 } 3774 } 3775 3776 // When the drag operation ends, release any local state object 3777 // that may have been in use 3778 if (what == DragEvent.ACTION_DRAG_ENDED) { 3779 setLocalDragState(null); 3780 } 3781 } 3782 } 3783 event.recycle(); 3784 } 3785 3786 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3787 if (mSeq != args.seq) { 3788 // The sequence has changed, so we need to update our value and make 3789 // sure to do a traversal afterward so the window manager is given our 3790 // most recent data. 3791 mSeq = args.seq; 3792 mAttachInfo.mForceReportNewAttributes = true; 3793 scheduleTraversals(); 3794 } 3795 if (mView == null) return; 3796 if (args.localChanges != 0) { 3797 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3798 } 3799 if (mAttachInfo != null) { 3800 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3801 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3802 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3803 mView.dispatchSystemUiVisibilityChanged(visibility); 3804 } 3805 } 3806 } 3807 3808 public void handleDispatchDoneAnimating() { 3809 if (mWindowsAnimating) { 3810 mWindowsAnimating = false; 3811 if (!mDirty.isEmpty() || mIsAnimating) { 3812 scheduleTraversals(); 3813 } 3814 } 3815 } 3816 3817 public void getLastTouchPoint(Point outLocation) { 3818 outLocation.x = (int) mLastTouchPoint.x; 3819 outLocation.y = (int) mLastTouchPoint.y; 3820 } 3821 3822 public void setDragFocus(View newDragTarget) { 3823 if (mCurrentDragView != newDragTarget) { 3824 mCurrentDragView = newDragTarget; 3825 } 3826 } 3827 3828 private AudioManager getAudioManager() { 3829 if (mView == null) { 3830 throw new IllegalStateException("getAudioManager called when there is no mView"); 3831 } 3832 if (mAudioManager == null) { 3833 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3834 } 3835 return mAudioManager; 3836 } 3837 3838 public AccessibilityInteractionController getAccessibilityInteractionController() { 3839 if (mView == null) { 3840 throw new IllegalStateException("getAccessibilityInteractionController" 3841 + " called when there is no mView"); 3842 } 3843 if (mAccessibilityInteractionController == null) { 3844 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3845 } 3846 return mAccessibilityInteractionController; 3847 } 3848 3849 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3850 boolean insetsPending) throws RemoteException { 3851 3852 float appScale = mAttachInfo.mApplicationScale; 3853 boolean restore = false; 3854 if (params != null && mTranslator != null) { 3855 restore = true; 3856 params.backup(); 3857 mTranslator.translateWindowLayout(params); 3858 } 3859 if (params != null) { 3860 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3861 } 3862 mPendingConfiguration.seq = 0; 3863 //Log.d(TAG, ">>>>>> CALLING relayout"); 3864 if (params != null && mOrigWindowType != params.type) { 3865 // For compatibility with old apps, don't crash here. 3866 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3867 Slog.w(TAG, "Window type can not be changed after " 3868 + "the window is added; ignoring change of " + mView); 3869 params.type = mOrigWindowType; 3870 } 3871 } 3872 int relayoutResult = sWindowSession.relayout( 3873 mWindow, mSeq, params, 3874 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3875 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3876 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3877 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3878 mPendingConfiguration, mSurface); 3879 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3880 if (restore) { 3881 params.restore(); 3882 } 3883 3884 if (mTranslator != null) { 3885 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3886 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3887 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3888 } 3889 return relayoutResult; 3890 } 3891 3892 /** 3893 * {@inheritDoc} 3894 */ 3895 public void playSoundEffect(int effectId) { 3896 checkThread(); 3897 3898 try { 3899 final AudioManager audioManager = getAudioManager(); 3900 3901 switch (effectId) { 3902 case SoundEffectConstants.CLICK: 3903 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3904 return; 3905 case SoundEffectConstants.NAVIGATION_DOWN: 3906 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3907 return; 3908 case SoundEffectConstants.NAVIGATION_LEFT: 3909 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3910 return; 3911 case SoundEffectConstants.NAVIGATION_RIGHT: 3912 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3913 return; 3914 case SoundEffectConstants.NAVIGATION_UP: 3915 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3916 return; 3917 default: 3918 throw new IllegalArgumentException("unknown effect id " + effectId + 3919 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3920 } 3921 } catch (IllegalStateException e) { 3922 // Exception thrown by getAudioManager() when mView is null 3923 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3924 e.printStackTrace(); 3925 } 3926 } 3927 3928 /** 3929 * {@inheritDoc} 3930 */ 3931 public boolean performHapticFeedback(int effectId, boolean always) { 3932 try { 3933 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3934 } catch (RemoteException e) { 3935 return false; 3936 } 3937 } 3938 3939 /** 3940 * {@inheritDoc} 3941 */ 3942 public View focusSearch(View focused, int direction) { 3943 checkThread(); 3944 if (!(mView instanceof ViewGroup)) { 3945 return null; 3946 } 3947 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3948 } 3949 3950 public void debug() { 3951 mView.debug(); 3952 } 3953 3954 public void dumpGfxInfo(int[] info) { 3955 info[0] = info[1] = 0; 3956 if (mView != null) { 3957 getGfxInfo(mView, info); 3958 } 3959 } 3960 3961 private static void getGfxInfo(View view, int[] info) { 3962 DisplayList displayList = view.mDisplayList; 3963 info[0]++; 3964 if (displayList != null) { 3965 info[1] += displayList.getSize(); 3966 } 3967 3968 if (view instanceof ViewGroup) { 3969 ViewGroup group = (ViewGroup) view; 3970 3971 int count = group.getChildCount(); 3972 for (int i = 0; i < count; i++) { 3973 getGfxInfo(group.getChildAt(i), info); 3974 } 3975 } 3976 } 3977 3978 public void die(boolean immediate) { 3979 if (immediate) { 3980 doDie(); 3981 } else { 3982 if (!mIsDrawing) { 3983 destroyHardwareRenderer(); 3984 } else { 3985 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3986 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3987 } 3988 mHandler.sendEmptyMessage(MSG_DIE); 3989 } 3990 } 3991 3992 void doDie() { 3993 checkThread(); 3994 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3995 synchronized (this) { 3996 if (mAdded) { 3997 dispatchDetachedFromWindow(); 3998 } 3999 4000 if (mAdded && !mFirst) { 4001 destroyHardwareRenderer(); 4002 4003 if (mView != null) { 4004 int viewVisibility = mView.getVisibility(); 4005 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4006 if (mWindowAttributesChanged || viewVisibilityChanged) { 4007 // If layout params have been changed, first give them 4008 // to the window manager to make sure it has the correct 4009 // animation info. 4010 try { 4011 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4012 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 4013 sWindowSession.finishDrawing(mWindow); 4014 } 4015 } catch (RemoteException e) { 4016 } 4017 } 4018 4019 mSurface.release(); 4020 } 4021 } 4022 4023 mAdded = false; 4024 } 4025 } 4026 4027 public void requestUpdateConfiguration(Configuration config) { 4028 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4029 mHandler.sendMessage(msg); 4030 } 4031 4032 public void loadSystemProperties() { 4033 boolean layout = SystemProperties.getBoolean( 4034 View.DEBUG_LAYOUT_PROPERTY, false); 4035 if (layout != mAttachInfo.mDebugLayout) { 4036 mAttachInfo.mDebugLayout = layout; 4037 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4038 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4039 } 4040 } 4041 } 4042 4043 private void destroyHardwareRenderer() { 4044 AttachInfo attachInfo = mAttachInfo; 4045 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4046 4047 if (hardwareRenderer != null) { 4048 if (mView != null) { 4049 hardwareRenderer.destroyHardwareResources(mView); 4050 } 4051 hardwareRenderer.destroy(true); 4052 hardwareRenderer.setRequested(false); 4053 4054 attachInfo.mHardwareRenderer = null; 4055 attachInfo.mHardwareAccelerated = false; 4056 } 4057 } 4058 4059 void dispatchImeFinishedEvent(int seq, boolean handled) { 4060 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4061 msg.arg1 = seq; 4062 msg.arg2 = handled ? 1 : 0; 4063 msg.setAsynchronous(true); 4064 mHandler.sendMessage(msg); 4065 } 4066 4067 public void dispatchFinishInputConnection(InputConnection connection) { 4068 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4069 mHandler.sendMessage(msg); 4070 } 4071 4072 public void dispatchResized(int w, int h, Rect contentInsets, 4073 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4074 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4075 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4076 + " visibleInsets=" + visibleInsets.toShortString() 4077 + " reportDraw=" + reportDraw); 4078 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4079 if (mTranslator != null) { 4080 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4081 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4082 w *= mTranslator.applicationInvertedScale; 4083 h *= mTranslator.applicationInvertedScale; 4084 } 4085 msg.arg1 = w; 4086 msg.arg2 = h; 4087 ResizedInfo ri = new ResizedInfo(); 4088 ri.contentInsets = new Rect(contentInsets); 4089 ri.visibleInsets = new Rect(visibleInsets); 4090 ri.newConfig = newConfig; 4091 msg.obj = ri; 4092 mHandler.sendMessage(msg); 4093 } 4094 4095 public void dispatchMoved(int newX, int newY) { 4096 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4097 if (mTranslator != null) { 4098 PointF point = new PointF(newX, newY); 4099 mTranslator.translatePointInScreenToAppWindow(point); 4100 newX = (int) (point.x + 0.5); 4101 newY = (int) (point.y + 0.5); 4102 } 4103 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4104 mHandler.sendMessage(msg); 4105 } 4106 4107 /** 4108 * Represents a pending input event that is waiting in a queue. 4109 * 4110 * Input events are processed in serial order by the timestamp specified by 4111 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4112 * one input event to the application at a time and waits for the application 4113 * to finish handling it before delivering the next one. 4114 * 4115 * However, because the application or IME can synthesize and inject multiple 4116 * key events at a time without going through the input dispatcher, we end up 4117 * needing a queue on the application's side. 4118 */ 4119 private static final class QueuedInputEvent { 4120 public static final int FLAG_DELIVER_POST_IME = 1; 4121 4122 public QueuedInputEvent mNext; 4123 4124 public InputEvent mEvent; 4125 public InputEventReceiver mReceiver; 4126 public int mFlags; 4127 } 4128 4129 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4130 InputEventReceiver receiver, int flags) { 4131 QueuedInputEvent q = mQueuedInputEventPool; 4132 if (q != null) { 4133 mQueuedInputEventPoolSize -= 1; 4134 mQueuedInputEventPool = q.mNext; 4135 q.mNext = null; 4136 } else { 4137 q = new QueuedInputEvent(); 4138 } 4139 4140 q.mEvent = event; 4141 q.mReceiver = receiver; 4142 q.mFlags = flags; 4143 return q; 4144 } 4145 4146 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4147 q.mEvent = null; 4148 q.mReceiver = null; 4149 4150 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4151 mQueuedInputEventPoolSize += 1; 4152 q.mNext = mQueuedInputEventPool; 4153 mQueuedInputEventPool = q; 4154 } 4155 } 4156 4157 void enqueueInputEvent(InputEvent event) { 4158 enqueueInputEvent(event, null, 0, false); 4159 } 4160 4161 void enqueueInputEvent(InputEvent event, 4162 InputEventReceiver receiver, int flags, boolean processImmediately) { 4163 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4164 4165 // Always enqueue the input event in order, regardless of its time stamp. 4166 // We do this because the application or the IME may inject key events 4167 // in response to touch events and we want to ensure that the injected keys 4168 // are processed in the order they were received and we cannot trust that 4169 // the time stamp of injected events are monotonic. 4170 QueuedInputEvent last = mFirstPendingInputEvent; 4171 if (last == null) { 4172 mFirstPendingInputEvent = q; 4173 } else { 4174 while (last.mNext != null) { 4175 last = last.mNext; 4176 } 4177 last.mNext = q; 4178 } 4179 4180 if (processImmediately) { 4181 doProcessInputEvents(); 4182 } else { 4183 scheduleProcessInputEvents(); 4184 } 4185 } 4186 4187 private void scheduleProcessInputEvents() { 4188 if (!mProcessInputEventsScheduled) { 4189 mProcessInputEventsScheduled = true; 4190 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4191 msg.setAsynchronous(true); 4192 mHandler.sendMessage(msg); 4193 } 4194 } 4195 4196 void doProcessInputEvents() { 4197 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4198 QueuedInputEvent q = mFirstPendingInputEvent; 4199 mFirstPendingInputEvent = q.mNext; 4200 q.mNext = null; 4201 mCurrentInputEvent = q; 4202 deliverInputEvent(q); 4203 } 4204 4205 // We are done processing all input events that we can process right now 4206 // so we can clear the pending flag immediately. 4207 if (mProcessInputEventsScheduled) { 4208 mProcessInputEventsScheduled = false; 4209 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4210 } 4211 } 4212 4213 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4214 if (q != mCurrentInputEvent) { 4215 throw new IllegalStateException("finished input event out of order"); 4216 } 4217 4218 if (q.mReceiver != null) { 4219 q.mReceiver.finishInputEvent(q.mEvent, handled); 4220 } else { 4221 q.mEvent.recycleIfNeededAfterDispatch(); 4222 } 4223 4224 recycleQueuedInputEvent(q); 4225 4226 mCurrentInputEvent = null; 4227 if (mFirstPendingInputEvent != null) { 4228 scheduleProcessInputEvents(); 4229 } 4230 } 4231 4232 void scheduleConsumeBatchedInput() { 4233 if (!mConsumeBatchedInputScheduled) { 4234 mConsumeBatchedInputScheduled = true; 4235 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4236 mConsumedBatchedInputRunnable, null); 4237 } 4238 } 4239 4240 void unscheduleConsumeBatchedInput() { 4241 if (mConsumeBatchedInputScheduled) { 4242 mConsumeBatchedInputScheduled = false; 4243 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4244 mConsumedBatchedInputRunnable, null); 4245 } 4246 } 4247 4248 void doConsumeBatchedInput(long frameTimeNanos) { 4249 if (mConsumeBatchedInputScheduled) { 4250 mConsumeBatchedInputScheduled = false; 4251 if (mInputEventReceiver != null) { 4252 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4253 } 4254 doProcessInputEvents(); 4255 } 4256 } 4257 4258 final class TraversalRunnable implements Runnable { 4259 @Override 4260 public void run() { 4261 doTraversal(); 4262 } 4263 } 4264 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4265 4266 final class WindowInputEventReceiver extends InputEventReceiver { 4267 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4268 super(inputChannel, looper); 4269 } 4270 4271 @Override 4272 public void onInputEvent(InputEvent event) { 4273 enqueueInputEvent(event, this, 0, true); 4274 } 4275 4276 @Override 4277 public void onBatchedInputEventPending() { 4278 scheduleConsumeBatchedInput(); 4279 } 4280 4281 @Override 4282 public void dispose() { 4283 unscheduleConsumeBatchedInput(); 4284 super.dispose(); 4285 } 4286 } 4287 WindowInputEventReceiver mInputEventReceiver; 4288 4289 final class ConsumeBatchedInputRunnable implements Runnable { 4290 @Override 4291 public void run() { 4292 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4293 } 4294 } 4295 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4296 new ConsumeBatchedInputRunnable(); 4297 boolean mConsumeBatchedInputScheduled; 4298 4299 final class InvalidateOnAnimationRunnable implements Runnable { 4300 private boolean mPosted; 4301 private ArrayList<View> mViews = new ArrayList<View>(); 4302 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4303 new ArrayList<AttachInfo.InvalidateInfo>(); 4304 private View[] mTempViews; 4305 private AttachInfo.InvalidateInfo[] mTempViewRects; 4306 4307 public void addView(View view) { 4308 synchronized (this) { 4309 mViews.add(view); 4310 postIfNeededLocked(); 4311 } 4312 } 4313 4314 public void addViewRect(AttachInfo.InvalidateInfo info) { 4315 synchronized (this) { 4316 mViewRects.add(info); 4317 postIfNeededLocked(); 4318 } 4319 } 4320 4321 public void removeView(View view) { 4322 synchronized (this) { 4323 mViews.remove(view); 4324 4325 for (int i = mViewRects.size(); i-- > 0; ) { 4326 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4327 if (info.target == view) { 4328 mViewRects.remove(i); 4329 info.release(); 4330 } 4331 } 4332 4333 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4334 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4335 mPosted = false; 4336 } 4337 } 4338 } 4339 4340 @Override 4341 public void run() { 4342 final int viewCount; 4343 final int viewRectCount; 4344 synchronized (this) { 4345 mPosted = false; 4346 4347 viewCount = mViews.size(); 4348 if (viewCount != 0) { 4349 mTempViews = mViews.toArray(mTempViews != null 4350 ? mTempViews : new View[viewCount]); 4351 mViews.clear(); 4352 } 4353 4354 viewRectCount = mViewRects.size(); 4355 if (viewRectCount != 0) { 4356 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4357 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4358 mViewRects.clear(); 4359 } 4360 } 4361 4362 for (int i = 0; i < viewCount; i++) { 4363 mTempViews[i].invalidate(); 4364 mTempViews[i] = null; 4365 } 4366 4367 for (int i = 0; i < viewRectCount; i++) { 4368 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4369 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4370 info.release(); 4371 } 4372 } 4373 4374 private void postIfNeededLocked() { 4375 if (!mPosted) { 4376 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4377 mPosted = true; 4378 } 4379 } 4380 } 4381 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4382 new InvalidateOnAnimationRunnable(); 4383 4384 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4385 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4386 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4387 } 4388 4389 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4390 long delayMilliseconds) { 4391 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4392 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4393 } 4394 4395 public void dispatchInvalidateOnAnimation(View view) { 4396 mInvalidateOnAnimationRunnable.addView(view); 4397 } 4398 4399 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4400 mInvalidateOnAnimationRunnable.addViewRect(info); 4401 } 4402 4403 public void enqueueDisplayList(DisplayList displayList) { 4404 mDisplayLists.add(displayList); 4405 4406 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4407 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4408 mHandler.sendMessage(msg); 4409 } 4410 4411 public void dequeueDisplayList(DisplayList displayList) { 4412 if (mDisplayLists.remove(displayList)) { 4413 displayList.invalidate(); 4414 if (mDisplayLists.size() == 0) { 4415 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4416 } 4417 } 4418 } 4419 4420 public void cancelInvalidate(View view) { 4421 mHandler.removeMessages(MSG_INVALIDATE, view); 4422 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4423 // them to the pool 4424 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4425 mInvalidateOnAnimationRunnable.removeView(view); 4426 } 4427 4428 public void dispatchKey(KeyEvent event) { 4429 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4430 msg.setAsynchronous(true); 4431 mHandler.sendMessage(msg); 4432 } 4433 4434 public void dispatchKeyFromIme(KeyEvent event) { 4435 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4436 msg.setAsynchronous(true); 4437 mHandler.sendMessage(msg); 4438 } 4439 4440 public void dispatchUnhandledKey(KeyEvent event) { 4441 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4442 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4443 final int keyCode = event.getKeyCode(); 4444 final int metaState = event.getMetaState(); 4445 4446 // Check for fallback actions specified by the key character map. 4447 KeyCharacterMap.FallbackAction fallbackAction = 4448 kcm.getFallbackAction(keyCode, metaState); 4449 if (fallbackAction != null) { 4450 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4451 KeyEvent fallbackEvent = KeyEvent.obtain( 4452 event.getDownTime(), event.getEventTime(), 4453 event.getAction(), fallbackAction.keyCode, 4454 event.getRepeatCount(), fallbackAction.metaState, 4455 event.getDeviceId(), event.getScanCode(), 4456 flags, event.getSource(), null); 4457 fallbackAction.recycle(); 4458 4459 dispatchKey(fallbackEvent); 4460 } 4461 } 4462 } 4463 4464 public void dispatchAppVisibility(boolean visible) { 4465 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4466 msg.arg1 = visible ? 1 : 0; 4467 mHandler.sendMessage(msg); 4468 } 4469 4470 public void dispatchScreenStateChange(boolean on) { 4471 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4472 msg.arg1 = on ? 1 : 0; 4473 mHandler.sendMessage(msg); 4474 } 4475 4476 public void dispatchGetNewSurface() { 4477 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4478 mHandler.sendMessage(msg); 4479 } 4480 4481 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4482 Message msg = Message.obtain(); 4483 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4484 msg.arg1 = hasFocus ? 1 : 0; 4485 msg.arg2 = inTouchMode ? 1 : 0; 4486 mHandler.sendMessage(msg); 4487 } 4488 4489 public void dispatchCloseSystemDialogs(String reason) { 4490 Message msg = Message.obtain(); 4491 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4492 msg.obj = reason; 4493 mHandler.sendMessage(msg); 4494 } 4495 4496 public void dispatchDragEvent(DragEvent event) { 4497 final int what; 4498 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4499 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4500 mHandler.removeMessages(what); 4501 } else { 4502 what = MSG_DISPATCH_DRAG_EVENT; 4503 } 4504 Message msg = mHandler.obtainMessage(what, event); 4505 mHandler.sendMessage(msg); 4506 } 4507 4508 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4509 int localValue, int localChanges) { 4510 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4511 args.seq = seq; 4512 args.globalVisibility = globalVisibility; 4513 args.localValue = localValue; 4514 args.localChanges = localChanges; 4515 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4516 } 4517 4518 public void dispatchDoneAnimating() { 4519 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4520 } 4521 4522 public void dispatchCheckFocus() { 4523 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4524 // This will result in a call to checkFocus() below. 4525 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4526 } 4527 } 4528 4529 /** 4530 * Post a callback to send a 4531 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4532 * This event is send at most once every 4533 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4534 */ 4535 private void postSendWindowContentChangedCallback(View source) { 4536 if (mSendWindowContentChangedAccessibilityEvent == null) { 4537 mSendWindowContentChangedAccessibilityEvent = 4538 new SendWindowContentChangedAccessibilityEvent(); 4539 } 4540 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4541 if (oldSource == null) { 4542 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4543 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4544 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4545 } else { 4546 mSendWindowContentChangedAccessibilityEvent.mSource = 4547 getCommonPredecessor(oldSource, source); 4548 } 4549 } 4550 4551 /** 4552 * Remove a posted callback to send a 4553 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4554 */ 4555 private void removeSendWindowContentChangedCallback() { 4556 if (mSendWindowContentChangedAccessibilityEvent != null) { 4557 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4558 } 4559 } 4560 4561 public boolean showContextMenuForChild(View originalView) { 4562 return false; 4563 } 4564 4565 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4566 return null; 4567 } 4568 4569 public void createContextMenu(ContextMenu menu) { 4570 } 4571 4572 public void childDrawableStateChanged(View child) { 4573 } 4574 4575 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4576 if (mView == null) { 4577 return false; 4578 } 4579 // Intercept accessibility focus events fired by virtual nodes to keep 4580 // track of accessibility focus position in such nodes. 4581 final int eventType = event.getEventType(); 4582 switch (eventType) { 4583 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4584 final long sourceNodeId = event.getSourceNodeId(); 4585 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4586 sourceNodeId); 4587 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4588 if (source != null) { 4589 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4590 if (provider != null) { 4591 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4592 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4593 setAccessibilityFocus(source, node); 4594 } 4595 } 4596 } break; 4597 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4598 final long sourceNodeId = event.getSourceNodeId(); 4599 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4600 sourceNodeId); 4601 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4602 if (source != null) { 4603 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4604 if (provider != null) { 4605 setAccessibilityFocus(null, null); 4606 } 4607 } 4608 } break; 4609 } 4610 mAccessibilityManager.sendAccessibilityEvent(event); 4611 return true; 4612 } 4613 4614 @Override 4615 public void childAccessibilityStateChanged(View child) { 4616 postSendWindowContentChangedCallback(child); 4617 } 4618 4619 private View getCommonPredecessor(View first, View second) { 4620 if (mAttachInfo != null) { 4621 if (mTempHashSet == null) { 4622 mTempHashSet = new HashSet<View>(); 4623 } 4624 HashSet<View> seen = mTempHashSet; 4625 seen.clear(); 4626 View firstCurrent = first; 4627 while (firstCurrent != null) { 4628 seen.add(firstCurrent); 4629 ViewParent firstCurrentParent = firstCurrent.mParent; 4630 if (firstCurrentParent instanceof View) { 4631 firstCurrent = (View) firstCurrentParent; 4632 } else { 4633 firstCurrent = null; 4634 } 4635 } 4636 View secondCurrent = second; 4637 while (secondCurrent != null) { 4638 if (seen.contains(secondCurrent)) { 4639 seen.clear(); 4640 return secondCurrent; 4641 } 4642 ViewParent secondCurrentParent = secondCurrent.mParent; 4643 if (secondCurrentParent instanceof View) { 4644 secondCurrent = (View) secondCurrentParent; 4645 } else { 4646 secondCurrent = null; 4647 } 4648 } 4649 seen.clear(); 4650 } 4651 return null; 4652 } 4653 4654 void checkThread() { 4655 if (mThread != Thread.currentThread()) { 4656 throw new CalledFromWrongThreadException( 4657 "Only the original thread that created a view hierarchy can touch its views."); 4658 } 4659 } 4660 4661 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4662 // ViewAncestor never intercepts touch event, so this can be a no-op 4663 } 4664 4665 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4666 boolean immediate) { 4667 return scrollToRectOrFocus(rectangle, immediate); 4668 } 4669 4670 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4671 // Do nothing. 4672 } 4673 4674 class TakenSurfaceHolder extends BaseSurfaceHolder { 4675 @Override 4676 public boolean onAllowLockCanvas() { 4677 return mDrawingAllowed; 4678 } 4679 4680 @Override 4681 public void onRelayoutContainer() { 4682 // Not currently interesting -- from changing between fixed and layout size. 4683 } 4684 4685 public void setFormat(int format) { 4686 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4687 } 4688 4689 public void setType(int type) { 4690 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4691 } 4692 4693 @Override 4694 public void onUpdateSurface() { 4695 // We take care of format and type changes on our own. 4696 throw new IllegalStateException("Shouldn't be here"); 4697 } 4698 4699 public boolean isCreating() { 4700 return mIsCreating; 4701 } 4702 4703 @Override 4704 public void setFixedSize(int width, int height) { 4705 throw new UnsupportedOperationException( 4706 "Currently only support sizing from layout"); 4707 } 4708 4709 public void setKeepScreenOn(boolean screenOn) { 4710 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4711 } 4712 } 4713 4714 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4715 private WeakReference<ViewRootImpl> mViewAncestor; 4716 4717 public InputMethodCallback(ViewRootImpl viewAncestor) { 4718 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4719 } 4720 4721 @Override 4722 public void finishedEvent(int seq, boolean handled) { 4723 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4724 if (viewAncestor != null) { 4725 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4726 } 4727 } 4728 } 4729 4730 static class W extends IWindow.Stub { 4731 private final WeakReference<ViewRootImpl> mViewAncestor; 4732 4733 W(ViewRootImpl viewAncestor) { 4734 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4735 } 4736 4737 public void resized(int w, int h, Rect contentInsets, 4738 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4739 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4740 if (viewAncestor != null) { 4741 viewAncestor.dispatchResized(w, h, contentInsets, 4742 visibleInsets, reportDraw, newConfig); 4743 } 4744 } 4745 4746 @Override 4747 public void moved(int newX, int newY) { 4748 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4749 if (viewAncestor != null) { 4750 viewAncestor.dispatchMoved(newX, newY); 4751 } 4752 } 4753 4754 public void dispatchAppVisibility(boolean visible) { 4755 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4756 if (viewAncestor != null) { 4757 viewAncestor.dispatchAppVisibility(visible); 4758 } 4759 } 4760 4761 public void dispatchScreenState(boolean on) { 4762 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4763 if (viewAncestor != null) { 4764 viewAncestor.dispatchScreenStateChange(on); 4765 } 4766 } 4767 4768 public void dispatchGetNewSurface() { 4769 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4770 if (viewAncestor != null) { 4771 viewAncestor.dispatchGetNewSurface(); 4772 } 4773 } 4774 4775 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4776 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4777 if (viewAncestor != null) { 4778 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4779 } 4780 } 4781 4782 private static int checkCallingPermission(String permission) { 4783 try { 4784 return ActivityManagerNative.getDefault().checkPermission( 4785 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4786 } catch (RemoteException e) { 4787 return PackageManager.PERMISSION_DENIED; 4788 } 4789 } 4790 4791 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4792 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4793 if (viewAncestor != null) { 4794 final View view = viewAncestor.mView; 4795 if (view != null) { 4796 if (checkCallingPermission(Manifest.permission.DUMP) != 4797 PackageManager.PERMISSION_GRANTED) { 4798 throw new SecurityException("Insufficient permissions to invoke" 4799 + " executeCommand() from pid=" + Binder.getCallingPid() 4800 + ", uid=" + Binder.getCallingUid()); 4801 } 4802 4803 OutputStream clientStream = null; 4804 try { 4805 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4806 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4807 } catch (IOException e) { 4808 e.printStackTrace(); 4809 } finally { 4810 if (clientStream != null) { 4811 try { 4812 clientStream.close(); 4813 } catch (IOException e) { 4814 e.printStackTrace(); 4815 } 4816 } 4817 } 4818 } 4819 } 4820 } 4821 4822 public void closeSystemDialogs(String reason) { 4823 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4824 if (viewAncestor != null) { 4825 viewAncestor.dispatchCloseSystemDialogs(reason); 4826 } 4827 } 4828 4829 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4830 boolean sync) { 4831 if (sync) { 4832 try { 4833 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4834 } catch (RemoteException e) { 4835 } 4836 } 4837 } 4838 4839 public void dispatchWallpaperCommand(String action, int x, int y, 4840 int z, Bundle extras, boolean sync) { 4841 if (sync) { 4842 try { 4843 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4844 } catch (RemoteException e) { 4845 } 4846 } 4847 } 4848 4849 /* Drag/drop */ 4850 public void dispatchDragEvent(DragEvent event) { 4851 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4852 if (viewAncestor != null) { 4853 viewAncestor.dispatchDragEvent(event); 4854 } 4855 } 4856 4857 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4858 int localValue, int localChanges) { 4859 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4860 if (viewAncestor != null) { 4861 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4862 localValue, localChanges); 4863 } 4864 } 4865 4866 public void doneAnimating() { 4867 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4868 if (viewAncestor != null) { 4869 viewAncestor.dispatchDoneAnimating(); 4870 } 4871 } 4872 } 4873 4874 /** 4875 * Maintains state information for a single trackball axis, generating 4876 * discrete (DPAD) movements based on raw trackball motion. 4877 */ 4878 static final class TrackballAxis { 4879 /** 4880 * The maximum amount of acceleration we will apply. 4881 */ 4882 static final float MAX_ACCELERATION = 20; 4883 4884 /** 4885 * The maximum amount of time (in milliseconds) between events in order 4886 * for us to consider the user to be doing fast trackball movements, 4887 * and thus apply an acceleration. 4888 */ 4889 static final long FAST_MOVE_TIME = 150; 4890 4891 /** 4892 * Scaling factor to the time (in milliseconds) between events to how 4893 * much to multiple/divide the current acceleration. When movement 4894 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4895 * FAST_MOVE_TIME it divides it. 4896 */ 4897 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4898 4899 float position; 4900 float absPosition; 4901 float acceleration = 1; 4902 long lastMoveTime = 0; 4903 int step; 4904 int dir; 4905 int nonAccelMovement; 4906 4907 void reset(int _step) { 4908 position = 0; 4909 acceleration = 1; 4910 lastMoveTime = 0; 4911 step = _step; 4912 dir = 0; 4913 } 4914 4915 /** 4916 * Add trackball movement into the state. If the direction of movement 4917 * has been reversed, the state is reset before adding the 4918 * movement (so that you don't have to compensate for any previously 4919 * collected movement before see the result of the movement in the 4920 * new direction). 4921 * 4922 * @return Returns the absolute value of the amount of movement 4923 * collected so far. 4924 */ 4925 float collect(float off, long time, String axis) { 4926 long normTime; 4927 if (off > 0) { 4928 normTime = (long)(off * FAST_MOVE_TIME); 4929 if (dir < 0) { 4930 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4931 position = 0; 4932 step = 0; 4933 acceleration = 1; 4934 lastMoveTime = 0; 4935 } 4936 dir = 1; 4937 } else if (off < 0) { 4938 normTime = (long)((-off) * FAST_MOVE_TIME); 4939 if (dir > 0) { 4940 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4941 position = 0; 4942 step = 0; 4943 acceleration = 1; 4944 lastMoveTime = 0; 4945 } 4946 dir = -1; 4947 } else { 4948 normTime = 0; 4949 } 4950 4951 // The number of milliseconds between each movement that is 4952 // considered "normal" and will not result in any acceleration 4953 // or deceleration, scaled by the offset we have here. 4954 if (normTime > 0) { 4955 long delta = time - lastMoveTime; 4956 lastMoveTime = time; 4957 float acc = acceleration; 4958 if (delta < normTime) { 4959 // The user is scrolling rapidly, so increase acceleration. 4960 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4961 if (scale > 1) acc *= scale; 4962 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4963 + off + " normTime=" + normTime + " delta=" + delta 4964 + " scale=" + scale + " acc=" + acc); 4965 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4966 } else { 4967 // The user is scrolling slowly, so decrease acceleration. 4968 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4969 if (scale > 1) acc /= scale; 4970 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4971 + off + " normTime=" + normTime + " delta=" + delta 4972 + " scale=" + scale + " acc=" + acc); 4973 acceleration = acc > 1 ? acc : 1; 4974 } 4975 } 4976 position += off; 4977 return (absPosition = Math.abs(position)); 4978 } 4979 4980 /** 4981 * Generate the number of discrete movement events appropriate for 4982 * the currently collected trackball movement. 4983 * 4984 * @param precision The minimum movement required to generate the 4985 * first discrete movement. 4986 * 4987 * @return Returns the number of discrete movements, either positive 4988 * or negative, or 0 if there is not enough trackball movement yet 4989 * for a discrete movement. 4990 */ 4991 int generate(float precision) { 4992 int movement = 0; 4993 nonAccelMovement = 0; 4994 do { 4995 final int dir = position >= 0 ? 1 : -1; 4996 switch (step) { 4997 // If we are going to execute the first step, then we want 4998 // to do this as soon as possible instead of waiting for 4999 // a full movement, in order to make things look responsive. 5000 case 0: 5001 if (absPosition < precision) { 5002 return movement; 5003 } 5004 movement += dir; 5005 nonAccelMovement += dir; 5006 step = 1; 5007 break; 5008 // If we have generated the first movement, then we need 5009 // to wait for the second complete trackball motion before 5010 // generating the second discrete movement. 5011 case 1: 5012 if (absPosition < 2) { 5013 return movement; 5014 } 5015 movement += dir; 5016 nonAccelMovement += dir; 5017 position += dir > 0 ? -2 : 2; 5018 absPosition = Math.abs(position); 5019 step = 2; 5020 break; 5021 // After the first two, we generate discrete movements 5022 // consistently with the trackball, applying an acceleration 5023 // if the trackball is moving quickly. This is a simple 5024 // acceleration on top of what we already compute based 5025 // on how quickly the wheel is being turned, to apply 5026 // a longer increasing acceleration to continuous movement 5027 // in one direction. 5028 default: 5029 if (absPosition < 1) { 5030 return movement; 5031 } 5032 movement += dir; 5033 position += dir >= 0 ? -1 : 1; 5034 absPosition = Math.abs(position); 5035 float acc = acceleration; 5036 acc *= 1.1f; 5037 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5038 break; 5039 } 5040 } while (true); 5041 } 5042 } 5043 5044 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5045 public CalledFromWrongThreadException(String msg) { 5046 super(msg); 5047 } 5048 } 5049 5050 private SurfaceHolder mHolder = new SurfaceHolder() { 5051 // we only need a SurfaceHolder for opengl. it would be nice 5052 // to implement everything else though, especially the callback 5053 // support (opengl doesn't make use of it right now, but eventually 5054 // will). 5055 public Surface getSurface() { 5056 return mSurface; 5057 } 5058 5059 public boolean isCreating() { 5060 return false; 5061 } 5062 5063 public void addCallback(Callback callback) { 5064 } 5065 5066 public void removeCallback(Callback callback) { 5067 } 5068 5069 public void setFixedSize(int width, int height) { 5070 } 5071 5072 public void setSizeFromLayout() { 5073 } 5074 5075 public void setFormat(int format) { 5076 } 5077 5078 public void setType(int type) { 5079 } 5080 5081 public void setKeepScreenOn(boolean screenOn) { 5082 } 5083 5084 public Canvas lockCanvas() { 5085 return null; 5086 } 5087 5088 public Canvas lockCanvas(Rect dirty) { 5089 return null; 5090 } 5091 5092 public void unlockCanvasAndPost(Canvas canvas) { 5093 } 5094 public Rect getSurfaceFrame() { 5095 return null; 5096 } 5097 }; 5098 5099 static RunQueue getRunQueue() { 5100 RunQueue rq = sRunQueues.get(); 5101 if (rq != null) { 5102 return rq; 5103 } 5104 rq = new RunQueue(); 5105 sRunQueues.set(rq); 5106 return rq; 5107 } 5108 5109 /** 5110 * The run queue is used to enqueue pending work from Views when no Handler is 5111 * attached. The work is executed during the next call to performTraversals on 5112 * the thread. 5113 * @hide 5114 */ 5115 static final class RunQueue { 5116 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5117 5118 void post(Runnable action) { 5119 postDelayed(action, 0); 5120 } 5121 5122 void postDelayed(Runnable action, long delayMillis) { 5123 HandlerAction handlerAction = new HandlerAction(); 5124 handlerAction.action = action; 5125 handlerAction.delay = delayMillis; 5126 5127 synchronized (mActions) { 5128 mActions.add(handlerAction); 5129 } 5130 } 5131 5132 void removeCallbacks(Runnable action) { 5133 final HandlerAction handlerAction = new HandlerAction(); 5134 handlerAction.action = action; 5135 5136 synchronized (mActions) { 5137 final ArrayList<HandlerAction> actions = mActions; 5138 5139 while (actions.remove(handlerAction)) { 5140 // Keep going 5141 } 5142 } 5143 } 5144 5145 void executeActions(Handler handler) { 5146 synchronized (mActions) { 5147 final ArrayList<HandlerAction> actions = mActions; 5148 final int count = actions.size(); 5149 5150 for (int i = 0; i < count; i++) { 5151 final HandlerAction handlerAction = actions.get(i); 5152 handler.postDelayed(handlerAction.action, handlerAction.delay); 5153 } 5154 5155 actions.clear(); 5156 } 5157 } 5158 5159 private static class HandlerAction { 5160 Runnable action; 5161 long delay; 5162 5163 @Override 5164 public boolean equals(Object o) { 5165 if (this == o) return true; 5166 if (o == null || getClass() != o.getClass()) return false; 5167 5168 HandlerAction that = (HandlerAction) o; 5169 return !(action != null ? !action.equals(that.action) : that.action != null); 5170 5171 } 5172 5173 @Override 5174 public int hashCode() { 5175 int result = action != null ? action.hashCode() : 0; 5176 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5177 return result; 5178 } 5179 } 5180 } 5181 5182 /** 5183 * Class for managing the accessibility interaction connection 5184 * based on the global accessibility state. 5185 */ 5186 final class AccessibilityInteractionConnectionManager 5187 implements AccessibilityStateChangeListener { 5188 public void onAccessibilityStateChanged(boolean enabled) { 5189 if (enabled) { 5190 ensureConnection(); 5191 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5192 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5193 View focusedView = mView.findFocus(); 5194 if (focusedView != null && focusedView != mView) { 5195 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5196 } 5197 } 5198 } else { 5199 ensureNoConnection(); 5200 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5201 } 5202 } 5203 5204 public void ensureConnection() { 5205 if (mAttachInfo != null) { 5206 final boolean registered = 5207 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5208 if (!registered) { 5209 mAttachInfo.mAccessibilityWindowId = 5210 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5211 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5212 } 5213 } 5214 } 5215 5216 public void ensureNoConnection() { 5217 final boolean registered = 5218 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5219 if (registered) { 5220 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5221 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5222 } 5223 } 5224 } 5225 5226 /** 5227 * This class is an interface this ViewAncestor provides to the 5228 * AccessibilityManagerService to the latter can interact with 5229 * the view hierarchy in this ViewAncestor. 5230 */ 5231 static final class AccessibilityInteractionConnection 5232 extends IAccessibilityInteractionConnection.Stub { 5233 private final WeakReference<ViewRootImpl> mViewRootImpl; 5234 5235 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5236 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5237 } 5238 5239 @Override 5240 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5241 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5242 int interrogatingPid, long interrogatingTid) { 5243 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5244 if (viewRootImpl != null && viewRootImpl.mView != null) { 5245 viewRootImpl.getAccessibilityInteractionController() 5246 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5247 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5248 } else { 5249 // We cannot make the call and notify the caller so it does not wait. 5250 try { 5251 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5252 } catch (RemoteException re) { 5253 /* best effort - ignore */ 5254 } 5255 } 5256 } 5257 5258 @Override 5259 public void performAccessibilityAction(long accessibilityNodeId, int action, 5260 Bundle arguments, int interactionId, 5261 IAccessibilityInteractionConnectionCallback callback, int flags, 5262 int interogatingPid, long interrogatingTid) { 5263 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5264 if (viewRootImpl != null && viewRootImpl.mView != null) { 5265 viewRootImpl.getAccessibilityInteractionController() 5266 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5267 interactionId, callback, flags, interogatingPid, interrogatingTid); 5268 } else { 5269 // We cannot make the call and notify the caller so it does not wait. 5270 try { 5271 callback.setPerformAccessibilityActionResult(false, interactionId); 5272 } catch (RemoteException re) { 5273 /* best effort - ignore */ 5274 } 5275 } 5276 } 5277 5278 @Override 5279 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5280 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5281 int interrogatingPid, long interrogatingTid) { 5282 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5283 if (viewRootImpl != null && viewRootImpl.mView != null) { 5284 viewRootImpl.getAccessibilityInteractionController() 5285 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5286 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5287 } else { 5288 // We cannot make the call and notify the caller so it does not wait. 5289 try { 5290 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5291 } catch (RemoteException re) { 5292 /* best effort - ignore */ 5293 } 5294 } 5295 } 5296 5297 @Override 5298 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5299 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5300 int interrogatingPid, long interrogatingTid) { 5301 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5302 if (viewRootImpl != null && viewRootImpl.mView != null) { 5303 viewRootImpl.getAccessibilityInteractionController() 5304 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5305 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5306 } else { 5307 // We cannot make the call and notify the caller so it does not wait. 5308 try { 5309 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5310 } catch (RemoteException re) { 5311 /* best effort - ignore */ 5312 } 5313 } 5314 } 5315 5316 @Override 5317 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5318 IAccessibilityInteractionConnectionCallback callback, int flags, 5319 int interrogatingPid, long interrogatingTid) { 5320 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5321 if (viewRootImpl != null && viewRootImpl.mView != null) { 5322 viewRootImpl.getAccessibilityInteractionController() 5323 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5324 flags, interrogatingPid, interrogatingTid); 5325 } else { 5326 // We cannot make the call and notify the caller so it does not wait. 5327 try { 5328 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5329 } catch (RemoteException re) { 5330 /* best effort - ignore */ 5331 } 5332 } 5333 } 5334 5335 @Override 5336 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5337 IAccessibilityInteractionConnectionCallback callback, int flags, 5338 int interrogatingPid, long interrogatingTid) { 5339 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5340 if (viewRootImpl != null && viewRootImpl.mView != null) { 5341 viewRootImpl.getAccessibilityInteractionController() 5342 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5343 callback, flags, interrogatingPid, interrogatingTid); 5344 } else { 5345 // We cannot make the call and notify the caller so it does not wait. 5346 try { 5347 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5348 } catch (RemoteException re) { 5349 /* best effort - ignore */ 5350 } 5351 } 5352 } 5353 } 5354 5355 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5356 public View mSource; 5357 5358 public void run() { 5359 if (mSource != null) { 5360 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5361 mSource.resetAccessibilityStateChanged(); 5362 mSource = null; 5363 } 5364 } 5365 } 5366} 5367