ViewRootImpl.java revision 932b7f6765968bd526c03512f3805fbc3924dc29
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.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.HashSet; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 99 private static final String TAG = "ViewRootImpl"; 100 private static final boolean DBG = false; 101 private static final boolean LOCAL_LOGV = false; 102 /** @noinspection PointlessBooleanExpression*/ 103 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 104 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 105 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 106 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 107 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 109 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 110 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_FPS = false; 112 113 private static final boolean USE_RENDER_THREAD = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static IWindowSession sWindowSession; 131 132 static final Object mStaticInit = new Object(); 133 static boolean mInitialized = false; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 private static boolean sUseRenderThread = false; 144 private static boolean sRenderThreadQueried = false; 145 private static final Object[] sRenderThreadQueryLock = new Object[0]; 146 147 long mLastTrackballTime = 0; 148 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 149 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 View mFocusedView; 175 View mRealFocusedView; // this is not set to null in touch mode 176 View mOldFocusedView; 177 178 View mAccessibilityFocusedHost; 179 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 180 181 int mViewVisibility; 182 boolean mAppVisible = true; 183 int mOrigWindowType = -1; 184 185 // Set to true if the owner of this window is in the stopped state, 186 // so the window should no longer be active. 187 boolean mStopped = false; 188 189 boolean mLastInCompatMode = false; 190 191 SurfaceHolder.Callback2 mSurfaceHolderCallback; 192 BaseSurfaceHolder mSurfaceHolder; 193 boolean mIsCreating; 194 boolean mDrawingAllowed; 195 196 final Region mTransparentRegion; 197 final Region mPreviousTransparentRegion; 198 199 int mWidth; 200 int mHeight; 201 Rect mDirty; 202 final Rect mCurrentDirty = new Rect(); 203 final Rect mPreviousDirty = new Rect(); 204 boolean mIsAnimating; 205 206 CompatibilityInfo.Translator mTranslator; 207 208 final View.AttachInfo mAttachInfo; 209 InputChannel mInputChannel; 210 InputQueue.Callback mInputQueueCallback; 211 InputQueue mInputQueue; 212 FallbackEventHandler mFallbackEventHandler; 213 Choreographer mChoreographer; 214 215 final Rect mTempRect; // used in the transaction to not thrash the heap. 216 final Rect mVisRect; // used to retrieve visible rect of focused view. 217 218 boolean mTraversalScheduled; 219 int mTraversalBarrier; 220 boolean mWillDrawSoon; 221 boolean mFitSystemWindowsRequested; 222 boolean mLayoutRequested; 223 boolean mFirst; 224 boolean mReportNextDraw; 225 boolean mFullRedrawNeeded; 226 boolean mNewSurfaceNeeded; 227 boolean mHasHadWindowFocus; 228 boolean mLastWasImTarget; 229 boolean mWindowsAnimating; 230 boolean mIsDrawing; 231 int mLastSystemUiVisibility; 232 233 // Pool of queued input events. 234 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 235 private QueuedInputEvent mQueuedInputEventPool; 236 private int mQueuedInputEventPoolSize; 237 238 // Input event queue. 239 QueuedInputEvent mFirstPendingInputEvent; 240 QueuedInputEvent mCurrentInputEvent; 241 boolean mProcessInputEventsScheduled; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 private final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 CompatibilityInfoHolder mCompatibilityInfo; 254 255 /*package*/ int mAddNesting; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 class ResizedInfo { 271 Rect contentInsets; 272 Rect visibleInsets; 273 Configuration newConfig; 274 } 275 276 boolean mScrollMayChange; 277 int mSoftInputMode; 278 View mLastScrolledFocus; 279 int mScrollY; 280 int mCurScrollY; 281 Scroller mScroller; 282 HardwareLayer mResizeBuffer; 283 long mResizeBufferStartTime; 284 int mResizeBufferDuration; 285 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 286 private ArrayList<LayoutTransition> mPendingTransitions; 287 288 final ViewConfiguration mViewConfiguration; 289 290 /* Drag/drop */ 291 ClipDescription mDragDescription; 292 View mCurrentDragView; 293 volatile Object mLocalDragState; 294 final PointF mDragPoint = new PointF(); 295 final PointF mLastTouchPoint = new PointF(); 296 297 private boolean mProfileRendering; 298 private Thread mRenderProfiler; 299 private volatile boolean mRenderProfilingEnabled; 300 301 // Variables to track frames per second, enabled via DEBUG_FPS flag 302 private long mFpsStartTime = -1; 303 private long mFpsPrevTime = -1; 304 private int mFpsNumFrames; 305 306 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 307 308 /** 309 * see {@link #playSoundEffect(int)} 310 */ 311 AudioManager mAudioManager; 312 313 final AccessibilityManager mAccessibilityManager; 314 315 AccessibilityInteractionController mAccessibilityInteractionController; 316 317 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 318 319 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 320 321 HashSet<View> mTempHashSet; 322 323 private final int mDensity; 324 325 /** 326 * Consistency verifier for debugging purposes. 327 */ 328 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 329 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 330 new InputEventConsistencyVerifier(this, 0) : null; 331 332 public static IWindowSession getWindowSession(Looper mainLooper) { 333 synchronized (mStaticInit) { 334 if (!mInitialized) { 335 try { 336 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 337 IWindowManager windowManager = Display.getWindowManager(); 338 sWindowSession = windowManager.openSession( 339 imm.getClient(), imm.getInputContext()); 340 float animatorScale = windowManager.getAnimationScale(2); 341 ValueAnimator.setDurationScale(animatorScale); 342 mInitialized = true; 343 } catch (RemoteException e) { 344 } 345 } 346 return sWindowSession; 347 } 348 } 349 350 static final class SystemUiVisibilityInfo { 351 int seq; 352 int globalVisibility; 353 int localValue; 354 int localChanges; 355 } 356 357 public ViewRootImpl(Context context) { 358 super(); 359 360 if (MEASURE_LATENCY) { 361 if (lt == null) { 362 lt = new LatencyTimer(100, 1000); 363 } 364 } 365 366 // Initialize the statics when this class is first instantiated. This is 367 // done here instead of in the static block because Zygote does not 368 // allow the spawning of threads. 369 getWindowSession(context.getMainLooper()); 370 371 mThread = Thread.currentThread(); 372 mLocation = new WindowLeaked(null); 373 mLocation.fillInStackTrace(); 374 mWidth = -1; 375 mHeight = -1; 376 mDirty = new Rect(); 377 mTempRect = new Rect(); 378 mVisRect = new Rect(); 379 mWinFrame = new Rect(); 380 mWindow = new W(this); 381 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 382 mInputMethodCallback = new InputMethodCallback(this); 383 mViewVisibility = View.GONE; 384 mTransparentRegion = new Region(); 385 mPreviousTransparentRegion = new Region(); 386 mFirst = true; // true for the first time the view is added 387 mAdded = false; 388 mAccessibilityManager = AccessibilityManager.getInstance(context); 389 mAccessibilityInteractionConnectionManager = 390 new AccessibilityInteractionConnectionManager(); 391 mAccessibilityManager.addAccessibilityStateChangeListener( 392 mAccessibilityInteractionConnectionManager); 393 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 394 mViewConfiguration = ViewConfiguration.get(context); 395 mDensity = context.getResources().getDisplayMetrics().densityDpi; 396 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 397 mProfileRendering = Boolean.parseBoolean( 398 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 399 mChoreographer = Choreographer.getInstance(); 400 401 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 402 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 403 loadSystemProperties(); 404 } 405 406 /** 407 * @return True if the application requests the use of a separate render thread, 408 * false otherwise 409 */ 410 private static boolean isRenderThreadRequested(Context context) { 411 if (USE_RENDER_THREAD) { 412 synchronized (sRenderThreadQueryLock) { 413 if (!sRenderThreadQueried) { 414 final PackageManager packageManager = context.getPackageManager(); 415 final String packageName = context.getApplicationInfo().packageName; 416 try { 417 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 418 PackageManager.GET_META_DATA); 419 if (applicationInfo.metaData != null) { 420 sUseRenderThread = applicationInfo.metaData.getBoolean( 421 "android.graphics.renderThread", false); 422 } 423 } catch (PackageManager.NameNotFoundException e) { 424 } finally { 425 sRenderThreadQueried = true; 426 } 427 } 428 return sUseRenderThread; 429 } 430 } else { 431 return false; 432 } 433 } 434 435 public static void addFirstDrawHandler(Runnable callback) { 436 synchronized (sFirstDrawHandlers) { 437 if (!sFirstDrawComplete) { 438 sFirstDrawHandlers.add(callback); 439 } 440 } 441 } 442 443 public static void addConfigCallback(ComponentCallbacks callback) { 444 synchronized (sConfigCallbacks) { 445 sConfigCallbacks.add(callback); 446 } 447 } 448 449 // FIXME for perf testing only 450 private boolean mProfile = false; 451 452 /** 453 * Call this to profile the next traversal call. 454 * FIXME for perf testing only. Remove eventually 455 */ 456 public void profile() { 457 mProfile = true; 458 } 459 460 /** 461 * Indicates whether we are in touch mode. Calling this method triggers an IPC 462 * call and should be avoided whenever possible. 463 * 464 * @return True, if the device is in touch mode, false otherwise. 465 * 466 * @hide 467 */ 468 static boolean isInTouchMode() { 469 if (mInitialized) { 470 try { 471 return sWindowSession.getInTouchMode(); 472 } catch (RemoteException e) { 473 } 474 } 475 return false; 476 } 477 478 /** 479 * We have one child 480 */ 481 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 482 synchronized (this) { 483 if (mView == null) { 484 mView = view; 485 mFallbackEventHandler.setView(view); 486 mWindowAttributes.copyFrom(attrs); 487 attrs = mWindowAttributes; 488 489 setAccessibilityFocusedHost(null); 490 491 if (view instanceof RootViewSurfaceTaker) { 492 mSurfaceHolderCallback = 493 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 494 if (mSurfaceHolderCallback != null) { 495 mSurfaceHolder = new TakenSurfaceHolder(); 496 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 497 } 498 } 499 500 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 501 mTranslator = compatibilityInfo.getTranslator(); 502 503 // If the application owns the surface, don't enable hardware acceleration 504 if (mSurfaceHolder == null) { 505 enableHardwareAcceleration(mView.getContext(), attrs); 506 } 507 508 boolean restore = false; 509 if (mTranslator != null) { 510 mSurface.setCompatibilityTranslator(mTranslator); 511 restore = true; 512 attrs.backup(); 513 mTranslator.translateWindowLayout(attrs); 514 } 515 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 516 517 if (!compatibilityInfo.supportsScreen()) { 518 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 519 mLastInCompatMode = true; 520 } 521 522 mSoftInputMode = attrs.softInputMode; 523 mWindowAttributesChanged = true; 524 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 525 mAttachInfo.mRootView = view; 526 mAttachInfo.mScalingRequired = mTranslator != null; 527 mAttachInfo.mApplicationScale = 528 mTranslator == null ? 1.0f : mTranslator.applicationScale; 529 if (panelParentView != null) { 530 mAttachInfo.mPanelParentWindowToken 531 = panelParentView.getApplicationWindowToken(); 532 } 533 mAdded = true; 534 int res; /* = WindowManagerImpl.ADD_OKAY; */ 535 536 // Schedule the first layout -before- adding to the window 537 // manager, to make sure we do the relayout before receiving 538 // any other events from the system. 539 requestLayout(); 540 if ((mWindowAttributes.inputFeatures 541 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 542 mInputChannel = new InputChannel(); 543 } 544 try { 545 mOrigWindowType = mWindowAttributes.type; 546 mAttachInfo.mRecomputeGlobalAttributes = true; 547 collectViewAttributes(); 548 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 549 getHostVisibility(), mAttachInfo.mContentInsets, 550 mInputChannel); 551 } catch (RemoteException e) { 552 mAdded = false; 553 mView = null; 554 mAttachInfo.mRootView = null; 555 mInputChannel = null; 556 mFallbackEventHandler.setView(null); 557 unscheduleTraversals(); 558 setAccessibilityFocusedHost(null); 559 throw new RuntimeException("Adding window failed", e); 560 } finally { 561 if (restore) { 562 attrs.restore(); 563 } 564 } 565 566 if (mTranslator != null) { 567 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 568 } 569 mPendingContentInsets.set(mAttachInfo.mContentInsets); 570 mPendingVisibleInsets.set(0, 0, 0, 0); 571 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 572 if (res < WindowManagerImpl.ADD_OKAY) { 573 mView = null; 574 mAttachInfo.mRootView = null; 575 mAdded = false; 576 mFallbackEventHandler.setView(null); 577 unscheduleTraversals(); 578 setAccessibilityFocusedHost(null); 579 switch (res) { 580 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 581 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 582 throw new WindowManagerImpl.BadTokenException( 583 "Unable to add window -- token " + attrs.token 584 + " is not valid; is your activity running?"); 585 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 586 throw new WindowManagerImpl.BadTokenException( 587 "Unable to add window -- token " + attrs.token 588 + " is not for an application"); 589 case WindowManagerImpl.ADD_APP_EXITING: 590 throw new WindowManagerImpl.BadTokenException( 591 "Unable to add window -- app for token " + attrs.token 592 + " is exiting"); 593 case WindowManagerImpl.ADD_DUPLICATE_ADD: 594 throw new WindowManagerImpl.BadTokenException( 595 "Unable to add window -- window " + mWindow 596 + " has already been added"); 597 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 598 // Silently ignore -- we would have just removed it 599 // right away, anyway. 600 return; 601 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 602 throw new WindowManagerImpl.BadTokenException( 603 "Unable to add window " + mWindow + 604 " -- another window of this type already exists"); 605 case WindowManagerImpl.ADD_PERMISSION_DENIED: 606 throw new WindowManagerImpl.BadTokenException( 607 "Unable to add window " + mWindow + 608 " -- permission denied for this window type"); 609 } 610 throw new RuntimeException( 611 "Unable to add window -- unknown error code " + res); 612 } 613 614 if (view instanceof RootViewSurfaceTaker) { 615 mInputQueueCallback = 616 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 617 } 618 if (mInputChannel != null) { 619 if (mInputQueueCallback != null) { 620 mInputQueue = new InputQueue(mInputChannel); 621 mInputQueueCallback.onInputQueueCreated(mInputQueue); 622 } else { 623 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 624 Looper.myLooper()); 625 } 626 } 627 628 view.assignParent(this); 629 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 630 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 631 632 if (mAccessibilityManager.isEnabled()) { 633 mAccessibilityInteractionConnectionManager.ensureConnection(); 634 } 635 636 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 637 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 638 } 639 } 640 } 641 } 642 643 void destroyHardwareResources() { 644 if (mAttachInfo.mHardwareRenderer != null) { 645 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 646 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 647 } 648 mAttachInfo.mHardwareRenderer.destroy(false); 649 } 650 } 651 652 void terminateHardwareResources() { 653 if (mAttachInfo.mHardwareRenderer != null) { 654 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 655 mAttachInfo.mHardwareRenderer.destroy(false); 656 } 657 } 658 659 void destroyHardwareLayers() { 660 if (mThread != Thread.currentThread()) { 661 if (mAttachInfo.mHardwareRenderer != null && 662 mAttachInfo.mHardwareRenderer.isEnabled()) { 663 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 664 } 665 } else { 666 if (mAttachInfo.mHardwareRenderer != null && 667 mAttachInfo.mHardwareRenderer.isEnabled()) { 668 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 669 } 670 } 671 } 672 673 public boolean attachFunctor(int functor) { 674 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 675 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 676 } 677 return false; 678 } 679 680 public void detachFunctor(int functor) { 681 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 682 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 683 } 684 } 685 686 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 687 mAttachInfo.mHardwareAccelerated = false; 688 mAttachInfo.mHardwareAccelerationRequested = false; 689 690 // Don't enable hardware acceleration when the application is in compatibility mode 691 if (mTranslator != null) return; 692 693 // Try to enable hardware acceleration if requested 694 final boolean hardwareAccelerated = 695 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 696 697 if (hardwareAccelerated) { 698 if (!HardwareRenderer.isAvailable()) { 699 return; 700 } 701 702 // Persistent processes (including the system) should not do 703 // accelerated rendering on low-end devices. In that case, 704 // sRendererDisabled will be set. In addition, the system process 705 // itself should never do accelerated rendering. In that case, both 706 // sRendererDisabled and sSystemRendererDisabled are set. When 707 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 708 // can be used by code on the system process to escape that and enable 709 // HW accelerated drawing. (This is basically for the lock screen.) 710 711 final boolean fakeHwAccelerated = (attrs.privateFlags & 712 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 713 final boolean forceHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 715 716 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 717 && forceHwAccelerated)) { 718 // Don't enable hardware acceleration when we're not on the main thread 719 if (!HardwareRenderer.sSystemRendererDisabled && 720 Looper.getMainLooper() != Looper.myLooper()) { 721 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 722 + "acceleration outside of the main thread, aborting"); 723 return; 724 } 725 726 final boolean renderThread = isRenderThreadRequested(context); 727 if (renderThread) { 728 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 729 } 730 731 if (mAttachInfo.mHardwareRenderer != null) { 732 mAttachInfo.mHardwareRenderer.destroy(true); 733 } 734 735 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 736 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 737 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 738 = mAttachInfo.mHardwareRenderer != null; 739 740 } else if (fakeHwAccelerated) { 741 // The window had wanted to use hardware acceleration, but this 742 // is not allowed in its process. By setting this flag, it can 743 // still render as if it was accelerated. This is basically for 744 // the preview windows the window manager shows for launching 745 // applications, so they will look more like the app being launched. 746 mAttachInfo.mHardwareAccelerationRequested = true; 747 } 748 } 749 } 750 751 public View getView() { 752 return mView; 753 } 754 755 final WindowLeaked getLocation() { 756 return mLocation; 757 } 758 759 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 760 synchronized (this) { 761 int oldSoftInputMode = mWindowAttributes.softInputMode; 762 // preserve compatible window flag if exists. 763 int compatibleWindowFlag = 764 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 765 // transfer over system UI visibility values as they carry current state. 766 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 767 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 768 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 769 mWindowAttributes.flags |= compatibleWindowFlag; 770 771 if (newView) { 772 mSoftInputMode = attrs.softInputMode; 773 requestLayout(); 774 } 775 // Don't lose the mode we last auto-computed. 776 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 777 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 778 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 779 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 780 | (oldSoftInputMode 781 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 782 } 783 mWindowAttributesChanged = true; 784 scheduleTraversals(); 785 } 786 } 787 788 void handleAppVisibility(boolean visible) { 789 if (mAppVisible != visible) { 790 mAppVisible = visible; 791 scheduleTraversals(); 792 } 793 } 794 795 void handleGetNewSurface() { 796 mNewSurfaceNeeded = true; 797 mFullRedrawNeeded = true; 798 scheduleTraversals(); 799 } 800 801 void handleScreenStateChange(boolean on) { 802 if (on != mAttachInfo.mScreenOn) { 803 mAttachInfo.mScreenOn = on; 804 if (mView != null) { 805 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 806 } 807 if (on) { 808 mFullRedrawNeeded = true; 809 scheduleTraversals(); 810 } 811 } 812 } 813 814 /** 815 * {@inheritDoc} 816 */ 817 public void requestFitSystemWindows() { 818 checkThread(); 819 mFitSystemWindowsRequested = true; 820 scheduleTraversals(); 821 } 822 823 /** 824 * {@inheritDoc} 825 */ 826 public void requestLayout() { 827 checkThread(); 828 mLayoutRequested = true; 829 scheduleTraversals(); 830 } 831 832 /** 833 * {@inheritDoc} 834 */ 835 public boolean isLayoutRequested() { 836 return mLayoutRequested; 837 } 838 839 void invalidate() { 840 mDirty.set(0, 0, mWidth, mHeight); 841 scheduleTraversals(); 842 } 843 844 void invalidateWorld(View view) { 845 view.invalidate(); 846 if (view instanceof ViewGroup) { 847 ViewGroup parent = (ViewGroup)view; 848 for (int i=0; i<parent.getChildCount(); i++) { 849 invalidateWorld(parent.getChildAt(i)); 850 } 851 } 852 } 853 854 public void invalidateChild(View child, Rect dirty) { 855 invalidateChildInParent(null, dirty); 856 } 857 858 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 859 checkThread(); 860 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 861 862 if (dirty == null) { 863 invalidate(); 864 return null; 865 } 866 867 if (mCurScrollY != 0 || mTranslator != null) { 868 mTempRect.set(dirty); 869 dirty = mTempRect; 870 if (mCurScrollY != 0) { 871 dirty.offset(0, -mCurScrollY); 872 } 873 if (mTranslator != null) { 874 mTranslator.translateRectInAppWindowToScreen(dirty); 875 } 876 if (mAttachInfo.mScalingRequired) { 877 dirty.inset(-1, -1); 878 } 879 } 880 881 final Rect localDirty = mDirty; 882 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 883 mAttachInfo.mSetIgnoreDirtyState = true; 884 mAttachInfo.mIgnoreDirtyState = true; 885 } 886 887 // Add the new dirty rect to the current one 888 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 889 // Intersect with the bounds of the window to skip 890 // updates that lie outside of the visible region 891 final float appScale = mAttachInfo.mApplicationScale; 892 localDirty.intersect(0, 0, 893 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 894 895 if (!mWillDrawSoon) { 896 scheduleTraversals(); 897 } 898 899 return null; 900 } 901 902 void setStopped(boolean stopped) { 903 if (mStopped != stopped) { 904 mStopped = stopped; 905 if (!stopped) { 906 scheduleTraversals(); 907 } 908 } 909 } 910 911 public ViewParent getParent() { 912 return null; 913 } 914 915 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 916 if (child != mView) { 917 throw new RuntimeException("child is not mine, honest!"); 918 } 919 // Note: don't apply scroll offset, because we want to know its 920 // visibility in the virtual canvas being given to the view hierarchy. 921 return r.intersect(0, 0, mWidth, mHeight); 922 } 923 924 public void bringChildToFront(View child) { 925 } 926 927 int getHostVisibility() { 928 return mAppVisible ? mView.getVisibility() : View.GONE; 929 } 930 931 void disposeResizeBuffer() { 932 if (mResizeBuffer != null) { 933 mResizeBuffer.destroy(); 934 mResizeBuffer = null; 935 } 936 } 937 938 /** 939 * Add LayoutTransition to the list of transitions to be started in the next traversal. 940 * This list will be cleared after the transitions on the list are start()'ed. These 941 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 942 * happens during the layout phase of traversal, which we want to complete before any of the 943 * animations are started (because those animations may side-effect properties that layout 944 * depends upon, like the bounding rectangles of the affected views). So we add the transition 945 * to the list and it is started just prior to starting the drawing phase of traversal. 946 * 947 * @param transition The LayoutTransition to be started on the next traversal. 948 * 949 * @hide 950 */ 951 public void requestTransitionStart(LayoutTransition transition) { 952 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 953 if (mPendingTransitions == null) { 954 mPendingTransitions = new ArrayList<LayoutTransition>(); 955 } 956 mPendingTransitions.add(transition); 957 } 958 } 959 960 void scheduleTraversals() { 961 if (!mTraversalScheduled) { 962 mTraversalScheduled = true; 963 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 964 mChoreographer.postCallback( 965 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 966 scheduleConsumeBatchedInput(); 967 } 968 } 969 970 void unscheduleTraversals() { 971 if (mTraversalScheduled) { 972 mTraversalScheduled = false; 973 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 974 mChoreographer.removeCallbacks( 975 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 976 } 977 } 978 979 void doTraversal() { 980 if (mTraversalScheduled) { 981 mTraversalScheduled = false; 982 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 983 984 if (mProfile) { 985 Debug.startMethodTracing("ViewAncestor"); 986 } 987 988 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 989 try { 990 performTraversals(); 991 } finally { 992 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 993 } 994 995 if (mProfile) { 996 Debug.stopMethodTracing(); 997 mProfile = false; 998 } 999 } 1000 } 1001 1002 private boolean collectViewAttributes() { 1003 final View.AttachInfo attachInfo = mAttachInfo; 1004 if (attachInfo.mRecomputeGlobalAttributes) { 1005 //Log.i(TAG, "Computing view hierarchy attributes!"); 1006 attachInfo.mRecomputeGlobalAttributes = false; 1007 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1008 int oldVis = attachInfo.mSystemUiVisibility; 1009 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1010 attachInfo.mKeepScreenOn = false; 1011 attachInfo.mSystemUiVisibility = 0; 1012 attachInfo.mHasSystemUiListeners = false; 1013 mView.dispatchCollectViewAttributes(attachInfo, 0); 1014 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1015 if (attachInfo.mKeepScreenOn != oldScreenOn 1016 || attachInfo.mSystemUiVisibility != oldVis 1017 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1018 WindowManager.LayoutParams params = mWindowAttributes; 1019 if (attachInfo.mKeepScreenOn) { 1020 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1021 } 1022 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1023 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1024 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1025 return true; 1026 } 1027 } 1028 return false; 1029 } 1030 1031 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1032 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1033 int childWidthMeasureSpec; 1034 int childHeightMeasureSpec; 1035 boolean windowSizeMayChange = false; 1036 1037 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1038 "Measuring " + host + " in display " + desiredWindowWidth 1039 + "x" + desiredWindowHeight + "..."); 1040 1041 boolean goodMeasure = false; 1042 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1043 // On large screens, we don't want to allow dialogs to just 1044 // stretch to fill the entire width of the screen to display 1045 // one line of text. First try doing the layout at a smaller 1046 // size to see if it will fit. 1047 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1048 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1049 int baseSize = 0; 1050 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1051 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1052 } 1053 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1054 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1055 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1056 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1057 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1058 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1059 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1060 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1061 goodMeasure = true; 1062 } else { 1063 // Didn't fit in that size... try expanding a bit. 1064 baseSize = (baseSize+desiredWindowWidth)/2; 1065 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1066 + baseSize); 1067 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1068 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1069 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1070 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1071 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1072 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1073 goodMeasure = true; 1074 } 1075 } 1076 } 1077 } 1078 1079 if (!goodMeasure) { 1080 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1081 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1082 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1083 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1084 windowSizeMayChange = true; 1085 } 1086 } 1087 1088 if (DBG) { 1089 System.out.println("======================================"); 1090 System.out.println("performTraversals -- after measure"); 1091 host.debug(); 1092 } 1093 1094 return windowSizeMayChange; 1095 } 1096 1097 private void performTraversals() { 1098 // cache mView since it is used so much below... 1099 final View host = mView; 1100 1101 if (DBG) { 1102 System.out.println("======================================"); 1103 System.out.println("performTraversals"); 1104 host.debug(); 1105 } 1106 1107 if (host == null || !mAdded) 1108 return; 1109 1110 mWillDrawSoon = true; 1111 boolean windowSizeMayChange = false; 1112 boolean newSurface = false; 1113 boolean surfaceChanged = false; 1114 WindowManager.LayoutParams lp = mWindowAttributes; 1115 1116 int desiredWindowWidth; 1117 int desiredWindowHeight; 1118 1119 final View.AttachInfo attachInfo = mAttachInfo; 1120 1121 final int viewVisibility = getHostVisibility(); 1122 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1123 || mNewSurfaceNeeded; 1124 1125 WindowManager.LayoutParams params = null; 1126 if (mWindowAttributesChanged) { 1127 mWindowAttributesChanged = false; 1128 surfaceChanged = true; 1129 params = lp; 1130 } 1131 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1132 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1133 params = lp; 1134 mFullRedrawNeeded = true; 1135 mLayoutRequested = true; 1136 if (mLastInCompatMode) { 1137 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1138 mLastInCompatMode = false; 1139 } else { 1140 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1141 mLastInCompatMode = true; 1142 } 1143 } 1144 1145 mWindowAttributesChangesFlag = 0; 1146 1147 Rect frame = mWinFrame; 1148 if (mFirst) { 1149 mFullRedrawNeeded = true; 1150 mLayoutRequested = true; 1151 1152 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1153 // NOTE -- system code, won't try to do compat mode. 1154 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1155 Point size = new Point(); 1156 disp.getRealSize(size); 1157 desiredWindowWidth = size.x; 1158 desiredWindowHeight = size.y; 1159 } else { 1160 DisplayMetrics packageMetrics = 1161 mView.getContext().getResources().getDisplayMetrics(); 1162 desiredWindowWidth = packageMetrics.widthPixels; 1163 desiredWindowHeight = packageMetrics.heightPixels; 1164 } 1165 1166 // For the very first time, tell the view hierarchy that it 1167 // is attached to the window. Note that at this point the surface 1168 // object is not initialized to its backing store, but soon it 1169 // will be (assuming the window is visible). 1170 attachInfo.mSurface = mSurface; 1171 // We used to use the following condition to choose 32 bits drawing caches: 1172 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1173 // However, windows are now always 32 bits by default, so choose 32 bits 1174 attachInfo.mUse32BitDrawingCache = true; 1175 attachInfo.mHasWindowFocus = false; 1176 attachInfo.mWindowVisibility = viewVisibility; 1177 attachInfo.mRecomputeGlobalAttributes = false; 1178 viewVisibilityChanged = false; 1179 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1180 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1181 host.dispatchAttachedToWindow(attachInfo, 0); 1182 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1183 host.fitSystemWindows(mFitSystemWindowsInsets); 1184 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1185 1186 } else { 1187 desiredWindowWidth = frame.width(); 1188 desiredWindowHeight = frame.height(); 1189 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1190 if (DEBUG_ORIENTATION) Log.v(TAG, 1191 "View " + host + " resized to: " + frame); 1192 mFullRedrawNeeded = true; 1193 mLayoutRequested = true; 1194 windowSizeMayChange = true; 1195 } 1196 } 1197 1198 if (viewVisibilityChanged) { 1199 attachInfo.mWindowVisibility = viewVisibility; 1200 host.dispatchWindowVisibilityChanged(viewVisibility); 1201 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1202 destroyHardwareResources(); 1203 } 1204 if (viewVisibility == View.GONE) { 1205 // After making a window gone, we will count it as being 1206 // shown for the first time the next time it gets focus. 1207 mHasHadWindowFocus = false; 1208 } 1209 } 1210 1211 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1212 getRunQueue().executeActions(attachInfo.mHandler); 1213 1214 boolean insetsChanged = false; 1215 1216 boolean layoutRequested = mLayoutRequested && !mStopped; 1217 if (layoutRequested) { 1218 1219 final Resources res = mView.getContext().getResources(); 1220 1221 if (mFirst) { 1222 // make sure touch mode code executes by setting cached value 1223 // to opposite of the added touch mode. 1224 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1225 ensureTouchModeLocally(mAddedTouchMode); 1226 } else { 1227 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1228 insetsChanged = true; 1229 } 1230 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1231 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1232 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1233 + mAttachInfo.mVisibleInsets); 1234 } 1235 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1236 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1237 windowSizeMayChange = true; 1238 1239 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1240 // NOTE -- system code, won't try to do compat mode. 1241 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1242 Point size = new Point(); 1243 disp.getRealSize(size); 1244 desiredWindowWidth = size.x; 1245 desiredWindowHeight = size.y; 1246 } else { 1247 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1248 desiredWindowWidth = packageMetrics.widthPixels; 1249 desiredWindowHeight = packageMetrics.heightPixels; 1250 } 1251 } 1252 } 1253 1254 // Ask host how big it wants to be 1255 windowSizeMayChange |= measureHierarchy(host, lp, res, 1256 desiredWindowWidth, desiredWindowHeight); 1257 } 1258 1259 if (collectViewAttributes()) { 1260 params = lp; 1261 } 1262 if (attachInfo.mForceReportNewAttributes) { 1263 attachInfo.mForceReportNewAttributes = false; 1264 params = lp; 1265 } 1266 1267 if (mFirst || attachInfo.mViewVisibilityChanged) { 1268 attachInfo.mViewVisibilityChanged = false; 1269 int resizeMode = mSoftInputMode & 1270 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1271 // If we are in auto resize mode, then we need to determine 1272 // what mode to use now. 1273 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1274 final int N = attachInfo.mScrollContainers.size(); 1275 for (int i=0; i<N; i++) { 1276 if (attachInfo.mScrollContainers.get(i).isShown()) { 1277 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1278 } 1279 } 1280 if (resizeMode == 0) { 1281 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1282 } 1283 if ((lp.softInputMode & 1284 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1285 lp.softInputMode = (lp.softInputMode & 1286 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1287 resizeMode; 1288 params = lp; 1289 } 1290 } 1291 } 1292 1293 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1294 if (!PixelFormat.formatHasAlpha(params.format)) { 1295 params.format = PixelFormat.TRANSLUCENT; 1296 } 1297 } 1298 1299 if (mFitSystemWindowsRequested) { 1300 mFitSystemWindowsRequested = false; 1301 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1302 host.fitSystemWindows(mFitSystemWindowsInsets); 1303 if (mLayoutRequested) { 1304 // Short-circuit catching a new layout request here, so 1305 // we don't need to go through two layout passes when things 1306 // change due to fitting system windows, which can happen a lot. 1307 windowSizeMayChange |= measureHierarchy(host, lp, 1308 mView.getContext().getResources(), 1309 desiredWindowWidth, desiredWindowHeight); 1310 } 1311 } 1312 1313 if (layoutRequested) { 1314 // Clear this now, so that if anything requests a layout in the 1315 // rest of this function we will catch it and re-run a full 1316 // layout pass. 1317 mLayoutRequested = false; 1318 } 1319 1320 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1321 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1322 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1323 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1324 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1325 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1326 1327 final boolean computesInternalInsets = 1328 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1329 1330 boolean insetsPending = false; 1331 int relayoutResult = 0; 1332 1333 if (mFirst || windowShouldResize || insetsChanged || 1334 viewVisibilityChanged || params != null) { 1335 1336 if (viewVisibility == View.VISIBLE) { 1337 // If this window is giving internal insets to the window 1338 // manager, and it is being added or changing its visibility, 1339 // then we want to first give the window manager "fake" 1340 // insets to cause it to effectively ignore the content of 1341 // the window during layout. This avoids it briefly causing 1342 // other windows to resize/move based on the raw frame of the 1343 // window, waiting until we can finish laying out this window 1344 // and get back to the window manager with the ultimately 1345 // computed insets. 1346 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1347 } 1348 1349 if (mSurfaceHolder != null) { 1350 mSurfaceHolder.mSurfaceLock.lock(); 1351 mDrawingAllowed = true; 1352 } 1353 1354 boolean hwInitialized = false; 1355 boolean contentInsetsChanged = false; 1356 boolean visibleInsetsChanged; 1357 boolean hadSurface = mSurface.isValid(); 1358 1359 try { 1360 if (DEBUG_LAYOUT) { 1361 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1362 host.getMeasuredHeight() + ", params=" + params); 1363 } 1364 1365 final int surfaceGenerationId = mSurface.getGenerationId(); 1366 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1367 1368 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1369 + " content=" + mPendingContentInsets.toShortString() 1370 + " visible=" + mPendingVisibleInsets.toShortString() 1371 + " surface=" + mSurface); 1372 1373 if (mPendingConfiguration.seq != 0) { 1374 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1375 + mPendingConfiguration); 1376 updateConfiguration(mPendingConfiguration, !mFirst); 1377 mPendingConfiguration.seq = 0; 1378 } 1379 1380 contentInsetsChanged = !mPendingContentInsets.equals( 1381 mAttachInfo.mContentInsets); 1382 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1383 mAttachInfo.mVisibleInsets); 1384 if (contentInsetsChanged) { 1385 if (mWidth > 0 && mHeight > 0 && lp != null && 1386 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1387 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1388 mSurface != null && mSurface.isValid() && 1389 !mAttachInfo.mTurnOffWindowResizeAnim && 1390 mAttachInfo.mHardwareRenderer != null && 1391 mAttachInfo.mHardwareRenderer.isEnabled() && 1392 mAttachInfo.mHardwareRenderer.validate() && 1393 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1394 1395 disposeResizeBuffer(); 1396 1397 boolean completed = false; 1398 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1399 HardwareCanvas layerCanvas = null; 1400 try { 1401 if (mResizeBuffer == null) { 1402 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1403 mWidth, mHeight, false); 1404 } else if (mResizeBuffer.getWidth() != mWidth || 1405 mResizeBuffer.getHeight() != mHeight) { 1406 mResizeBuffer.resize(mWidth, mHeight); 1407 } 1408 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1409 layerCanvas.setViewport(mWidth, mHeight); 1410 layerCanvas.onPreDraw(null); 1411 final int restoreCount = layerCanvas.save(); 1412 1413 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1414 1415 int yoff; 1416 final boolean scrolling = mScroller != null 1417 && mScroller.computeScrollOffset(); 1418 if (scrolling) { 1419 yoff = mScroller.getCurrY(); 1420 mScroller.abortAnimation(); 1421 } else { 1422 yoff = mScrollY; 1423 } 1424 1425 layerCanvas.translate(0, -yoff); 1426 if (mTranslator != null) { 1427 mTranslator.translateCanvas(layerCanvas); 1428 } 1429 1430 mView.draw(layerCanvas); 1431 1432 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1433 1434 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1435 mResizeBufferDuration = mView.getResources().getInteger( 1436 com.android.internal.R.integer.config_mediumAnimTime); 1437 completed = true; 1438 1439 layerCanvas.restoreToCount(restoreCount); 1440 } catch (OutOfMemoryError e) { 1441 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1442 } finally { 1443 if (layerCanvas != null) { 1444 layerCanvas.onPostDraw(); 1445 } 1446 if (mResizeBuffer != null) { 1447 mResizeBuffer.end(hwRendererCanvas); 1448 if (!completed) { 1449 mResizeBuffer.destroy(); 1450 mResizeBuffer = null; 1451 } 1452 } 1453 } 1454 } 1455 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1456 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1457 + mAttachInfo.mContentInsets); 1458 } 1459 if (contentInsetsChanged || mLastSystemUiVisibility != 1460 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1461 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1462 mFitSystemWindowsRequested = false; 1463 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1464 host.fitSystemWindows(mFitSystemWindowsInsets); 1465 } 1466 if (visibleInsetsChanged) { 1467 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1468 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1469 + mAttachInfo.mVisibleInsets); 1470 } 1471 1472 if (!hadSurface) { 1473 if (mSurface.isValid()) { 1474 // If we are creating a new surface, then we need to 1475 // completely redraw it. Also, when we get to the 1476 // point of drawing it we will hold off and schedule 1477 // a new traversal instead. This is so we can tell the 1478 // window manager about all of the windows being displayed 1479 // before actually drawing them, so it can display then 1480 // all at once. 1481 newSurface = true; 1482 mFullRedrawNeeded = true; 1483 mPreviousTransparentRegion.setEmpty(); 1484 1485 if (mAttachInfo.mHardwareRenderer != null) { 1486 try { 1487 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1488 } catch (Surface.OutOfResourcesException e) { 1489 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1490 try { 1491 if (!sWindowSession.outOfMemory(mWindow)) { 1492 Slog.w(TAG, "No processes killed for memory; killing self"); 1493 Process.killProcess(Process.myPid()); 1494 } 1495 } catch (RemoteException ex) { 1496 } 1497 mLayoutRequested = true; // ask wm for a new surface next time. 1498 return; 1499 } 1500 } 1501 } 1502 } else if (!mSurface.isValid()) { 1503 // If the surface has been removed, then reset the scroll 1504 // positions. 1505 mLastScrolledFocus = null; 1506 mScrollY = mCurScrollY = 0; 1507 if (mScroller != null) { 1508 mScroller.abortAnimation(); 1509 } 1510 disposeResizeBuffer(); 1511 // Our surface is gone 1512 if (mAttachInfo.mHardwareRenderer != null && 1513 mAttachInfo.mHardwareRenderer.isEnabled()) { 1514 mAttachInfo.mHardwareRenderer.destroy(true); 1515 } 1516 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1517 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1518 mFullRedrawNeeded = true; 1519 try { 1520 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1521 } catch (Surface.OutOfResourcesException e) { 1522 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1523 try { 1524 if (!sWindowSession.outOfMemory(mWindow)) { 1525 Slog.w(TAG, "No processes killed for memory; killing self"); 1526 Process.killProcess(Process.myPid()); 1527 } 1528 } catch (RemoteException ex) { 1529 } 1530 mLayoutRequested = true; // ask wm for a new surface next time. 1531 return; 1532 } 1533 } 1534 } catch (RemoteException e) { 1535 } 1536 1537 if (DEBUG_ORIENTATION) Log.v( 1538 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1539 1540 attachInfo.mWindowLeft = frame.left; 1541 attachInfo.mWindowTop = frame.top; 1542 1543 // !!FIXME!! This next section handles the case where we did not get the 1544 // window size we asked for. We should avoid this by getting a maximum size from 1545 // the window session beforehand. 1546 if (mWidth != frame.width() || mHeight != frame.height()) { 1547 mWidth = frame.width(); 1548 mHeight = frame.height(); 1549 } 1550 1551 if (mSurfaceHolder != null) { 1552 // The app owns the surface; tell it about what is going on. 1553 if (mSurface.isValid()) { 1554 // XXX .copyFrom() doesn't work! 1555 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1556 mSurfaceHolder.mSurface = mSurface; 1557 } 1558 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1559 mSurfaceHolder.mSurfaceLock.unlock(); 1560 if (mSurface.isValid()) { 1561 if (!hadSurface) { 1562 mSurfaceHolder.ungetCallbacks(); 1563 1564 mIsCreating = true; 1565 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1566 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1567 if (callbacks != null) { 1568 for (SurfaceHolder.Callback c : callbacks) { 1569 c.surfaceCreated(mSurfaceHolder); 1570 } 1571 } 1572 surfaceChanged = true; 1573 } 1574 if (surfaceChanged) { 1575 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1576 lp.format, mWidth, mHeight); 1577 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1578 if (callbacks != null) { 1579 for (SurfaceHolder.Callback c : callbacks) { 1580 c.surfaceChanged(mSurfaceHolder, lp.format, 1581 mWidth, mHeight); 1582 } 1583 } 1584 } 1585 mIsCreating = false; 1586 } else if (hadSurface) { 1587 mSurfaceHolder.ungetCallbacks(); 1588 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1589 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1590 if (callbacks != null) { 1591 for (SurfaceHolder.Callback c : callbacks) { 1592 c.surfaceDestroyed(mSurfaceHolder); 1593 } 1594 } 1595 mSurfaceHolder.mSurfaceLock.lock(); 1596 try { 1597 mSurfaceHolder.mSurface = new Surface(); 1598 } finally { 1599 mSurfaceHolder.mSurfaceLock.unlock(); 1600 } 1601 } 1602 } 1603 1604 if (mAttachInfo.mHardwareRenderer != null && 1605 mAttachInfo.mHardwareRenderer.isEnabled()) { 1606 if (hwInitialized || windowShouldResize || 1607 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1608 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1609 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1610 if (!hwInitialized) { 1611 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1612 } 1613 } 1614 } 1615 1616 if (!mStopped) { 1617 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1618 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1619 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1620 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1621 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1622 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1623 1624 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1625 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1626 + " mHeight=" + mHeight 1627 + " measuredHeight=" + host.getMeasuredHeight() 1628 + " coveredInsetsChanged=" + contentInsetsChanged); 1629 1630 // Ask host how big it wants to be 1631 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1632 1633 // Implementation of weights from WindowManager.LayoutParams 1634 // We just grow the dimensions as needed and re-measure if 1635 // needs be 1636 int width = host.getMeasuredWidth(); 1637 int height = host.getMeasuredHeight(); 1638 boolean measureAgain = false; 1639 1640 if (lp.horizontalWeight > 0.0f) { 1641 width += (int) ((mWidth - width) * lp.horizontalWeight); 1642 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1643 MeasureSpec.EXACTLY); 1644 measureAgain = true; 1645 } 1646 if (lp.verticalWeight > 0.0f) { 1647 height += (int) ((mHeight - height) * lp.verticalWeight); 1648 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1649 MeasureSpec.EXACTLY); 1650 measureAgain = true; 1651 } 1652 1653 if (measureAgain) { 1654 if (DEBUG_LAYOUT) Log.v(TAG, 1655 "And hey let's measure once more: width=" + width 1656 + " height=" + height); 1657 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1658 } 1659 1660 layoutRequested = true; 1661 } 1662 } 1663 } 1664 1665 final boolean didLayout = layoutRequested && !mStopped; 1666 boolean triggerGlobalLayoutListener = didLayout 1667 || attachInfo.mRecomputeGlobalAttributes; 1668 if (didLayout) { 1669 performLayout(); 1670 1671 // By this point all views have been sized and positionned 1672 // We can compute the transparent area 1673 1674 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1675 // start out transparent 1676 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1677 host.getLocationInWindow(mTmpLocation); 1678 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1679 mTmpLocation[0] + host.mRight - host.mLeft, 1680 mTmpLocation[1] + host.mBottom - host.mTop); 1681 1682 host.gatherTransparentRegion(mTransparentRegion); 1683 if (mTranslator != null) { 1684 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1685 } 1686 1687 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1688 mPreviousTransparentRegion.set(mTransparentRegion); 1689 // reconfigure window manager 1690 try { 1691 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1692 } catch (RemoteException e) { 1693 } 1694 } 1695 } 1696 1697 if (DBG) { 1698 System.out.println("======================================"); 1699 System.out.println("performTraversals -- after setFrame"); 1700 host.debug(); 1701 } 1702 } 1703 1704 if (triggerGlobalLayoutListener) { 1705 attachInfo.mRecomputeGlobalAttributes = false; 1706 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1707 1708 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1709 postSendWindowContentChangedCallback(mView); 1710 } 1711 } 1712 1713 if (computesInternalInsets) { 1714 // Clear the original insets. 1715 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1716 insets.reset(); 1717 1718 // Compute new insets in place. 1719 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1720 1721 // Tell the window manager. 1722 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1723 mLastGivenInsets.set(insets); 1724 1725 // Translate insets to screen coordinates if needed. 1726 final Rect contentInsets; 1727 final Rect visibleInsets; 1728 final Region touchableRegion; 1729 if (mTranslator != null) { 1730 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1731 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1732 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1733 } else { 1734 contentInsets = insets.contentInsets; 1735 visibleInsets = insets.visibleInsets; 1736 touchableRegion = insets.touchableRegion; 1737 } 1738 1739 try { 1740 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1741 contentInsets, visibleInsets, touchableRegion); 1742 } catch (RemoteException e) { 1743 } 1744 } 1745 } 1746 1747 boolean skipDraw = false; 1748 1749 if (mFirst) { 1750 // handle first focus request 1751 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1752 + mView.hasFocus()); 1753 if (mView != null) { 1754 if (!mView.hasFocus()) { 1755 mView.requestFocus(View.FOCUS_FORWARD); 1756 mFocusedView = mRealFocusedView = mView.findFocus(); 1757 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1758 + mFocusedView); 1759 } else { 1760 mRealFocusedView = mView.findFocus(); 1761 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1762 + mRealFocusedView); 1763 } 1764 } 1765 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1766 // The first time we relayout the window, if the system is 1767 // doing window animations, we want to hold of on any future 1768 // draws until the animation is done. 1769 mWindowsAnimating = true; 1770 } 1771 } else if (mWindowsAnimating) { 1772 skipDraw = true; 1773 } 1774 1775 mFirst = false; 1776 mWillDrawSoon = false; 1777 mNewSurfaceNeeded = false; 1778 mViewVisibility = viewVisibility; 1779 1780 if (mAttachInfo.mHasWindowFocus) { 1781 final boolean imTarget = WindowManager.LayoutParams 1782 .mayUseInputMethod(mWindowAttributes.flags); 1783 if (imTarget != mLastWasImTarget) { 1784 mLastWasImTarget = imTarget; 1785 InputMethodManager imm = InputMethodManager.peekInstance(); 1786 if (imm != null && imTarget) { 1787 imm.startGettingWindowFocus(mView); 1788 imm.onWindowFocus(mView, mView.findFocus(), 1789 mWindowAttributes.softInputMode, 1790 !mHasHadWindowFocus, mWindowAttributes.flags); 1791 } 1792 } 1793 } 1794 1795 // Remember if we must report the next draw. 1796 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1797 mReportNextDraw = true; 1798 } 1799 1800 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1801 viewVisibility != View.VISIBLE; 1802 1803 if (!cancelDraw && !newSurface) { 1804 if (!skipDraw || mReportNextDraw) { 1805 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1806 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1807 mPendingTransitions.get(i).startChangingAnimations(); 1808 } 1809 mPendingTransitions.clear(); 1810 } 1811 1812 performDraw(); 1813 } 1814 } else { 1815 if (viewVisibility == View.VISIBLE) { 1816 // Try again 1817 scheduleTraversals(); 1818 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1819 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1820 mPendingTransitions.get(i).endChangingAnimations(); 1821 } 1822 mPendingTransitions.clear(); 1823 } 1824 } 1825 } 1826 1827 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1828 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1829 try { 1830 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1831 } finally { 1832 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1833 } 1834 } 1835 1836 private void performLayout() { 1837 mLayoutRequested = false; 1838 mScrollMayChange = true; 1839 1840 final View host = mView; 1841 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1842 Log.v(TAG, "Laying out " + host + " to (" + 1843 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1844 } 1845 1846 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1847 try { 1848 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1849 } finally { 1850 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1851 } 1852 } 1853 1854 public void requestTransparentRegion(View child) { 1855 // the test below should not fail unless someone is messing with us 1856 checkThread(); 1857 if (mView == child) { 1858 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1859 // Need to make sure we re-evaluate the window attributes next 1860 // time around, to ensure the window has the correct format. 1861 mWindowAttributesChanged = true; 1862 mWindowAttributesChangesFlag = 0; 1863 requestLayout(); 1864 } 1865 } 1866 1867 /** 1868 * Figures out the measure spec for the root view in a window based on it's 1869 * layout params. 1870 * 1871 * @param windowSize 1872 * The available width or height of the window 1873 * 1874 * @param rootDimension 1875 * The layout params for one dimension (width or height) of the 1876 * window. 1877 * 1878 * @return The measure spec to use to measure the root view. 1879 */ 1880 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1881 int measureSpec; 1882 switch (rootDimension) { 1883 1884 case ViewGroup.LayoutParams.MATCH_PARENT: 1885 // Window can't resize. Force root view to be windowSize. 1886 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1887 break; 1888 case ViewGroup.LayoutParams.WRAP_CONTENT: 1889 // Window can resize. Set max size for root view. 1890 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1891 break; 1892 default: 1893 // Window wants to be an exact size. Force root view to be that size. 1894 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1895 break; 1896 } 1897 return measureSpec; 1898 } 1899 1900 int mHardwareYOffset; 1901 int mResizeAlpha; 1902 final Paint mResizePaint = new Paint(); 1903 1904 public void onHardwarePreDraw(HardwareCanvas canvas) { 1905 canvas.translate(0, -mHardwareYOffset); 1906 } 1907 1908 public void onHardwarePostDraw(HardwareCanvas canvas) { 1909 if (mResizeBuffer != null) { 1910 mResizePaint.setAlpha(mResizeAlpha); 1911 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1912 } 1913 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1914 } 1915 1916 /** 1917 * @hide 1918 */ 1919 void outputDisplayList(View view) { 1920 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1921 DisplayList displayList = view.getDisplayList(); 1922 if (displayList != null) { 1923 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1924 } 1925 } 1926 } 1927 1928 /** 1929 * @see #PROPERTY_PROFILE_RENDERING 1930 */ 1931 private void profileRendering(boolean enabled) { 1932 if (mProfileRendering) { 1933 mRenderProfilingEnabled = enabled; 1934 if (mRenderProfiler == null) { 1935 mRenderProfiler = new Thread(new Runnable() { 1936 @Override 1937 public void run() { 1938 Log.d(TAG, "Starting profiling thread"); 1939 while (mRenderProfilingEnabled) { 1940 mAttachInfo.mHandler.post(new Runnable() { 1941 @Override 1942 public void run() { 1943 mDirty.set(0, 0, mWidth, mHeight); 1944 scheduleTraversals(); 1945 } 1946 }); 1947 try { 1948 // TODO: This should use vsync when we get an API 1949 Thread.sleep(15); 1950 } catch (InterruptedException e) { 1951 Log.d(TAG, "Exiting profiling thread"); 1952 } 1953 } 1954 } 1955 }, "Rendering Profiler"); 1956 mRenderProfiler.start(); 1957 } else { 1958 mRenderProfiler.interrupt(); 1959 mRenderProfiler = null; 1960 } 1961 } 1962 } 1963 1964 /** 1965 * Called from draw() when DEBUG_FPS is enabled 1966 */ 1967 private void trackFPS() { 1968 // Tracks frames per second drawn. First value in a series of draws may be bogus 1969 // because it down not account for the intervening idle time 1970 long nowTime = System.currentTimeMillis(); 1971 if (mFpsStartTime < 0) { 1972 mFpsStartTime = mFpsPrevTime = nowTime; 1973 mFpsNumFrames = 0; 1974 } else { 1975 ++mFpsNumFrames; 1976 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1977 long frameTime = nowTime - mFpsPrevTime; 1978 long totalTime = nowTime - mFpsStartTime; 1979 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1980 mFpsPrevTime = nowTime; 1981 if (totalTime > 1000) { 1982 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1983 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1984 mFpsStartTime = nowTime; 1985 mFpsNumFrames = 0; 1986 } 1987 } 1988 } 1989 1990 private void performDraw() { 1991 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 1992 return; 1993 } 1994 1995 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1996 mFullRedrawNeeded = false; 1997 1998 mIsDrawing = true; 1999 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2000 try { 2001 draw(fullRedrawNeeded); 2002 } finally { 2003 mIsDrawing = false; 2004 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2005 } 2006 2007 if (mReportNextDraw) { 2008 mReportNextDraw = false; 2009 2010 if (LOCAL_LOGV) { 2011 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2012 } 2013 if (mSurfaceHolder != null && mSurface.isValid()) { 2014 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2015 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2016 if (callbacks != null) { 2017 for (SurfaceHolder.Callback c : callbacks) { 2018 if (c instanceof SurfaceHolder.Callback2) { 2019 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2020 mSurfaceHolder); 2021 } 2022 } 2023 } 2024 } 2025 try { 2026 sWindowSession.finishDrawing(mWindow); 2027 } catch (RemoteException e) { 2028 } 2029 } 2030 } 2031 2032 private void draw(boolean fullRedrawNeeded) { 2033 Surface surface = mSurface; 2034 if (surface == null || !surface.isValid()) { 2035 return; 2036 } 2037 2038 if (DEBUG_FPS) { 2039 trackFPS(); 2040 } 2041 2042 if (!sFirstDrawComplete) { 2043 synchronized (sFirstDrawHandlers) { 2044 sFirstDrawComplete = true; 2045 final int count = sFirstDrawHandlers.size(); 2046 for (int i = 0; i< count; i++) { 2047 mHandler.post(sFirstDrawHandlers.get(i)); 2048 } 2049 } 2050 } 2051 2052 scrollToRectOrFocus(null, false); 2053 2054 final AttachInfo attachInfo = mAttachInfo; 2055 if (attachInfo.mViewScrollChanged) { 2056 attachInfo.mViewScrollChanged = false; 2057 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2058 } 2059 2060 int yoff; 2061 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2062 if (animating) { 2063 yoff = mScroller.getCurrY(); 2064 } else { 2065 yoff = mScrollY; 2066 } 2067 if (mCurScrollY != yoff) { 2068 mCurScrollY = yoff; 2069 fullRedrawNeeded = true; 2070 } 2071 2072 final float appScale = attachInfo.mApplicationScale; 2073 final boolean scalingRequired = attachInfo.mScalingRequired; 2074 2075 int resizeAlpha = 0; 2076 if (mResizeBuffer != null) { 2077 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2078 if (deltaTime < mResizeBufferDuration) { 2079 float amt = deltaTime/(float) mResizeBufferDuration; 2080 amt = mResizeInterpolator.getInterpolation(amt); 2081 animating = true; 2082 resizeAlpha = 255 - (int)(amt*255); 2083 } else { 2084 disposeResizeBuffer(); 2085 } 2086 } 2087 2088 final Rect dirty = mDirty; 2089 if (mSurfaceHolder != null) { 2090 // The app owns the surface, we won't draw. 2091 dirty.setEmpty(); 2092 if (animating) { 2093 if (mScroller != null) { 2094 mScroller.abortAnimation(); 2095 } 2096 disposeResizeBuffer(); 2097 } 2098 return; 2099 } 2100 2101 if (fullRedrawNeeded) { 2102 attachInfo.mIgnoreDirtyState = true; 2103 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2104 } 2105 2106 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2107 Log.v(TAG, "Draw " + mView + "/" 2108 + mWindowAttributes.getTitle() 2109 + ": dirty={" + dirty.left + "," + dirty.top 2110 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2111 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2112 appScale + ", width=" + mWidth + ", height=" + mHeight); 2113 } 2114 2115 attachInfo.mTreeObserver.dispatchOnDraw(); 2116 2117 if (!dirty.isEmpty() || mIsAnimating) { 2118 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2119 // Draw with hardware renderer. 2120 mIsAnimating = false; 2121 mHardwareYOffset = yoff; 2122 mResizeAlpha = resizeAlpha; 2123 2124 mCurrentDirty.set(dirty); 2125 mCurrentDirty.union(mPreviousDirty); 2126 mPreviousDirty.set(dirty); 2127 dirty.setEmpty(); 2128 2129 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2130 animating ? null : mCurrentDirty)) { 2131 mPreviousDirty.set(0, 0, mWidth, mHeight); 2132 } 2133 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2134 return; 2135 } 2136 } 2137 2138 if (animating) { 2139 mFullRedrawNeeded = true; 2140 scheduleTraversals(); 2141 } 2142 } 2143 2144 /** 2145 * @return true if drawing was succesfull, false if an error occurred 2146 */ 2147 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2148 boolean scalingRequired, Rect dirty) { 2149 2150 // If we get here with a disabled & requested hardware renderer, something went 2151 // wrong (an invalidate posted right before we destroyed the hardware surface 2152 // for instance) so we should just bail out. Locking the surface with software 2153 // rendering at this point would lock it forever and prevent hardware renderer 2154 // from doing its job when it comes back. 2155 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2156 attachInfo.mHardwareRenderer.isRequested()) { 2157 mFullRedrawNeeded = true; 2158 scheduleTraversals(); 2159 return false; 2160 } 2161 2162 // Draw with software renderer. 2163 Canvas canvas; 2164 try { 2165 int left = dirty.left; 2166 int top = dirty.top; 2167 int right = dirty.right; 2168 int bottom = dirty.bottom; 2169 2170 canvas = mSurface.lockCanvas(dirty); 2171 2172 if (left != dirty.left || top != dirty.top || right != dirty.right || 2173 bottom != dirty.bottom) { 2174 attachInfo.mIgnoreDirtyState = true; 2175 } 2176 2177 // TODO: Do this in native 2178 canvas.setDensity(mDensity); 2179 } catch (Surface.OutOfResourcesException e) { 2180 Log.e(TAG, "OutOfResourcesException locking surface", e); 2181 try { 2182 if (!sWindowSession.outOfMemory(mWindow)) { 2183 Slog.w(TAG, "No processes killed for memory; killing self"); 2184 Process.killProcess(Process.myPid()); 2185 } 2186 } catch (RemoteException ex) { 2187 } 2188 mLayoutRequested = true; // ask wm for a new surface next time. 2189 return false; 2190 } catch (IllegalArgumentException e) { 2191 Log.e(TAG, "Could not lock surface", e); 2192 // Don't assume this is due to out of memory, it could be 2193 // something else, and if it is something else then we could 2194 // kill stuff (or ourself) for no reason. 2195 mLayoutRequested = true; // ask wm for a new surface next time. 2196 return false; 2197 } 2198 2199 try { 2200 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2201 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2202 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2203 //canvas.drawARGB(255, 255, 0, 0); 2204 } 2205 2206 // If this bitmap's format includes an alpha channel, we 2207 // need to clear it before drawing so that the child will 2208 // properly re-composite its drawing on a transparent 2209 // background. This automatically respects the clip/dirty region 2210 // or 2211 // If we are applying an offset, we need to clear the area 2212 // where the offset doesn't appear to avoid having garbage 2213 // left in the blank areas. 2214 if (!canvas.isOpaque() || yoff != 0) { 2215 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2216 } 2217 2218 dirty.setEmpty(); 2219 mIsAnimating = false; 2220 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2221 mView.mPrivateFlags |= View.DRAWN; 2222 2223 if (DEBUG_DRAW) { 2224 Context cxt = mView.getContext(); 2225 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2226 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2227 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2228 } 2229 try { 2230 canvas.translate(0, -yoff); 2231 if (mTranslator != null) { 2232 mTranslator.translateCanvas(canvas); 2233 } 2234 canvas.setScreenDensity(scalingRequired 2235 ? DisplayMetrics.DENSITY_DEVICE : 0); 2236 attachInfo.mSetIgnoreDirtyState = false; 2237 2238 mView.draw(canvas); 2239 2240 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2241 } finally { 2242 if (!attachInfo.mSetIgnoreDirtyState) { 2243 // Only clear the flag if it was not set during the mView.draw() call 2244 attachInfo.mIgnoreDirtyState = false; 2245 } 2246 } 2247 } finally { 2248 try { 2249 surface.unlockCanvasAndPost(canvas); 2250 } catch (IllegalArgumentException e) { 2251 Log.e(TAG, "Could not unlock surface", e); 2252 mLayoutRequested = true; // ask wm for a new surface next time. 2253 //noinspection ReturnInsideFinallyBlock 2254 return false; 2255 } 2256 2257 if (LOCAL_LOGV) { 2258 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2259 } 2260 } 2261 return true; 2262 } 2263 2264 @Override 2265 public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 2266 if (descendant.includeForAccessibility()) { 2267 return descendant; 2268 } 2269 return null; 2270 } 2271 2272 /** 2273 * We want to draw a highlight around the current accessibility focused. 2274 * Since adding a style for all possible view is not a viable option we 2275 * have this specialized drawing method. 2276 * 2277 * Note: We are doing this here to be able to draw the highlight for 2278 * virtual views in addition to real ones. 2279 * 2280 * @param canvas The canvas on which to draw. 2281 */ 2282 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2283 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2284 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2285 return; 2286 } 2287 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2288 return; 2289 } 2290 Drawable drawable = getAccessibilityFocusedDrawable(); 2291 if (drawable == null) { 2292 return; 2293 } 2294 AccessibilityNodeProvider provider = 2295 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2296 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2297 if (provider == null) { 2298 mAccessibilityFocusedHost.getDrawingRect(bounds); 2299 if (mView instanceof ViewGroup) { 2300 ViewGroup viewGroup = (ViewGroup) mView; 2301 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2302 } 2303 } else { 2304 if (mAccessibilityFocusedVirtualView == null) { 2305 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2306 } 2307 if (mAccessibilityFocusedVirtualView == null) { 2308 return; 2309 } 2310 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2311 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2312 } 2313 drawable.setBounds(bounds); 2314 drawable.draw(canvas); 2315 } 2316 2317 private Drawable getAccessibilityFocusedDrawable() { 2318 if (mAttachInfo != null) { 2319 // Lazily load the accessibility focus drawable. 2320 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2321 TypedValue value = new TypedValue(); 2322 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2323 R.attr.accessibilityFocusedDrawable, value, true); 2324 if (resolved) { 2325 mAttachInfo.mAccessibilityFocusDrawable = 2326 mView.mContext.getResources().getDrawable(value.resourceId); 2327 } 2328 } 2329 return mAttachInfo.mAccessibilityFocusDrawable; 2330 } 2331 return null; 2332 } 2333 2334 void invalidateDisplayLists() { 2335 final ArrayList<DisplayList> displayLists = mDisplayLists; 2336 final int count = displayLists.size(); 2337 2338 for (int i = 0; i < count; i++) { 2339 final DisplayList displayList = displayLists.get(i); 2340 displayList.invalidate(); 2341 displayList.clear(); 2342 } 2343 2344 displayLists.clear(); 2345 } 2346 2347 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2348 final View.AttachInfo attachInfo = mAttachInfo; 2349 final Rect ci = attachInfo.mContentInsets; 2350 final Rect vi = attachInfo.mVisibleInsets; 2351 int scrollY = 0; 2352 boolean handled = false; 2353 2354 if (vi.left > ci.left || vi.top > ci.top 2355 || vi.right > ci.right || vi.bottom > ci.bottom) { 2356 // We'll assume that we aren't going to change the scroll 2357 // offset, since we want to avoid that unless it is actually 2358 // going to make the focus visible... otherwise we scroll 2359 // all over the place. 2360 scrollY = mScrollY; 2361 // We can be called for two different situations: during a draw, 2362 // to update the scroll position if the focus has changed (in which 2363 // case 'rectangle' is null), or in response to a 2364 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2365 // is non-null and we just want to scroll to whatever that 2366 // rectangle is). 2367 View focus = mRealFocusedView; 2368 2369 // When in touch mode, focus points to the previously focused view, 2370 // which may have been removed from the view hierarchy. The following 2371 // line checks whether the view is still in our hierarchy. 2372 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2373 mRealFocusedView = null; 2374 return false; 2375 } 2376 2377 if (focus != mLastScrolledFocus) { 2378 // If the focus has changed, then ignore any requests to scroll 2379 // to a rectangle; first we want to make sure the entire focus 2380 // view is visible. 2381 rectangle = null; 2382 } 2383 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2384 + " rectangle=" + rectangle + " ci=" + ci 2385 + " vi=" + vi); 2386 if (focus == mLastScrolledFocus && !mScrollMayChange 2387 && rectangle == null) { 2388 // Optimization: if the focus hasn't changed since last 2389 // time, and no layout has happened, then just leave things 2390 // as they are. 2391 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2392 + mScrollY + " vi=" + vi.toShortString()); 2393 } else if (focus != null) { 2394 // We need to determine if the currently focused view is 2395 // within the visible part of the window and, if not, apply 2396 // a pan so it can be seen. 2397 mLastScrolledFocus = focus; 2398 mScrollMayChange = false; 2399 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2400 // Try to find the rectangle from the focus view. 2401 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2402 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2403 + mView.getWidth() + " h=" + mView.getHeight() 2404 + " ci=" + ci.toShortString() 2405 + " vi=" + vi.toShortString()); 2406 if (rectangle == null) { 2407 focus.getFocusedRect(mTempRect); 2408 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2409 + ": focusRect=" + mTempRect.toShortString()); 2410 if (mView instanceof ViewGroup) { 2411 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2412 focus, mTempRect); 2413 } 2414 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2415 "Focus in window: focusRect=" 2416 + mTempRect.toShortString() 2417 + " visRect=" + mVisRect.toShortString()); 2418 } else { 2419 mTempRect.set(rectangle); 2420 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2421 "Request scroll to rect: " 2422 + mTempRect.toShortString() 2423 + " visRect=" + mVisRect.toShortString()); 2424 } 2425 if (mTempRect.intersect(mVisRect)) { 2426 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2427 "Focus window visible rect: " 2428 + mTempRect.toShortString()); 2429 if (mTempRect.height() > 2430 (mView.getHeight()-vi.top-vi.bottom)) { 2431 // If the focus simply is not going to fit, then 2432 // best is probably just to leave things as-is. 2433 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2434 "Too tall; leaving scrollY=" + scrollY); 2435 } else if ((mTempRect.top-scrollY) < vi.top) { 2436 scrollY -= vi.top - (mTempRect.top-scrollY); 2437 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2438 "Top covered; scrollY=" + scrollY); 2439 } else if ((mTempRect.bottom-scrollY) 2440 > (mView.getHeight()-vi.bottom)) { 2441 scrollY += (mTempRect.bottom-scrollY) 2442 - (mView.getHeight()-vi.bottom); 2443 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2444 "Bottom covered; scrollY=" + scrollY); 2445 } 2446 handled = true; 2447 } 2448 } 2449 } 2450 } 2451 2452 if (scrollY != mScrollY) { 2453 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2454 + mScrollY + " , new=" + scrollY); 2455 if (!immediate && mResizeBuffer == null) { 2456 if (mScroller == null) { 2457 mScroller = new Scroller(mView.getContext()); 2458 } 2459 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2460 } else if (mScroller != null) { 2461 mScroller.abortAnimation(); 2462 } 2463 mScrollY = scrollY; 2464 } 2465 2466 return handled; 2467 } 2468 2469 /** 2470 * @hide 2471 */ 2472 public View getAccessibilityFocusedHost() { 2473 return mAccessibilityFocusedHost; 2474 } 2475 2476 /** 2477 * @hide 2478 */ 2479 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2480 return mAccessibilityFocusedVirtualView; 2481 } 2482 2483 void setAccessibilityFocusedHost(View host) { 2484 // If we have a virtual view with accessibility focus we need 2485 // to clear the focus and invalidate the virtual view bounds. 2486 if (mAccessibilityFocusedVirtualView != null) { 2487 2488 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2489 View focusHost = mAccessibilityFocusedHost; 2490 focusHost.clearAccessibilityFocusNoCallbacks(); 2491 2492 // Wipe the state of the current accessibility focus since 2493 // the call into the provider to clear accessibility focus 2494 // will fire an accessibility event which will end up calling 2495 // this method and we want to have clean state when this 2496 // invocation happens. 2497 mAccessibilityFocusedHost = null; 2498 mAccessibilityFocusedVirtualView = null; 2499 2500 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2501 if (provider != null) { 2502 // Invalidate the area of the cleared accessibility focus. 2503 focusNode.getBoundsInParent(mTempRect); 2504 focusHost.invalidate(mTempRect); 2505 // Clear accessibility focus in the virtual node. 2506 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2507 focusNode.getSourceNodeId()); 2508 provider.performAction(virtualNodeId, 2509 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2510 } 2511 } 2512 if (mAccessibilityFocusedHost != null) { 2513 // Clear accessibility focus in the view. 2514 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2515 } 2516 2517 // Set the new focus host. 2518 mAccessibilityFocusedHost = host; 2519 2520 // If the host has a provide find the virtual descendant that has focus. 2521 if (mAccessibilityFocusedHost != null) { 2522 AccessibilityNodeProvider provider = 2523 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2524 if (provider != null) { 2525 mAccessibilityFocusedVirtualView = provider.findAccessibilityFocus(View.NO_ID); 2526 return; 2527 } 2528 } 2529 } 2530 2531 public void requestChildFocus(View child, View focused) { 2532 checkThread(); 2533 2534 if (DEBUG_INPUT_RESIZE) { 2535 Log.v(TAG, "Request child focus: focus now " + focused); 2536 } 2537 2538 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2539 scheduleTraversals(); 2540 2541 mFocusedView = mRealFocusedView = focused; 2542 } 2543 2544 public void clearChildFocus(View child) { 2545 checkThread(); 2546 2547 if (DEBUG_INPUT_RESIZE) { 2548 Log.v(TAG, "Clearing child focus"); 2549 } 2550 2551 mOldFocusedView = mFocusedView; 2552 2553 // Invoke the listener only if there is no view to take focus 2554 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2555 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2556 } 2557 2558 mFocusedView = mRealFocusedView = null; 2559 } 2560 2561 @Override 2562 public ViewParent getParentForAccessibility() { 2563 return null; 2564 } 2565 2566 public void focusableViewAvailable(View v) { 2567 checkThread(); 2568 if (mView != null) { 2569 if (!mView.hasFocus()) { 2570 v.requestFocus(); 2571 } else { 2572 // the one case where will transfer focus away from the current one 2573 // is if the current view is a view group that prefers to give focus 2574 // to its children first AND the view is a descendant of it. 2575 mFocusedView = mView.findFocus(); 2576 boolean descendantsHaveDibsOnFocus = 2577 (mFocusedView instanceof ViewGroup) && 2578 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2579 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2580 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2581 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2582 v.requestFocus(); 2583 } 2584 } 2585 } 2586 } 2587 2588 public void recomputeViewAttributes(View child) { 2589 checkThread(); 2590 if (mView == child) { 2591 mAttachInfo.mRecomputeGlobalAttributes = true; 2592 if (!mWillDrawSoon) { 2593 scheduleTraversals(); 2594 } 2595 } 2596 } 2597 2598 void dispatchDetachedFromWindow() { 2599 if (mView != null && mView.mAttachInfo != null) { 2600 if (mAttachInfo.mHardwareRenderer != null && 2601 mAttachInfo.mHardwareRenderer.isEnabled()) { 2602 mAttachInfo.mHardwareRenderer.validate(); 2603 } 2604 mView.dispatchDetachedFromWindow(); 2605 } 2606 2607 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2608 mAccessibilityManager.removeAccessibilityStateChangeListener( 2609 mAccessibilityInteractionConnectionManager); 2610 removeSendWindowContentChangedCallback(); 2611 2612 destroyHardwareRenderer(); 2613 2614 setAccessibilityFocusedHost(null); 2615 2616 mView = null; 2617 mAttachInfo.mRootView = null; 2618 mAttachInfo.mSurface = null; 2619 2620 mSurface.release(); 2621 2622 if (mInputQueueCallback != null && mInputQueue != null) { 2623 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2624 mInputQueueCallback = null; 2625 mInputQueue = null; 2626 } else if (mInputEventReceiver != null) { 2627 mInputEventReceiver.dispose(); 2628 mInputEventReceiver = null; 2629 } 2630 try { 2631 sWindowSession.remove(mWindow); 2632 } catch (RemoteException e) { 2633 } 2634 2635 // Dispose the input channel after removing the window so the Window Manager 2636 // doesn't interpret the input channel being closed as an abnormal termination. 2637 if (mInputChannel != null) { 2638 mInputChannel.dispose(); 2639 mInputChannel = null; 2640 } 2641 2642 unscheduleTraversals(); 2643 } 2644 2645 void updateConfiguration(Configuration config, boolean force) { 2646 if (DEBUG_CONFIGURATION) Log.v(TAG, 2647 "Applying new config to window " 2648 + mWindowAttributes.getTitle() 2649 + ": " + config); 2650 2651 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2652 if (ci != null) { 2653 config = new Configuration(config); 2654 ci.applyToConfiguration(config); 2655 } 2656 2657 synchronized (sConfigCallbacks) { 2658 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2659 sConfigCallbacks.get(i).onConfigurationChanged(config); 2660 } 2661 } 2662 if (mView != null) { 2663 // At this point the resources have been updated to 2664 // have the most recent config, whatever that is. Use 2665 // the on in them which may be newer. 2666 config = mView.getResources().getConfiguration(); 2667 if (force || mLastConfiguration.diff(config) != 0) { 2668 mLastConfiguration.setTo(config); 2669 mView.dispatchConfigurationChanged(config); 2670 } 2671 } 2672 } 2673 2674 /** 2675 * Return true if child is an ancestor of parent, (or equal to the parent). 2676 */ 2677 public static boolean isViewDescendantOf(View child, View parent) { 2678 if (child == parent) { 2679 return true; 2680 } 2681 2682 final ViewParent theParent = child.getParent(); 2683 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2684 } 2685 2686 private static void forceLayout(View view) { 2687 view.forceLayout(); 2688 if (view instanceof ViewGroup) { 2689 ViewGroup group = (ViewGroup) view; 2690 final int count = group.getChildCount(); 2691 for (int i = 0; i < count; i++) { 2692 forceLayout(group.getChildAt(i)); 2693 } 2694 } 2695 } 2696 2697 private final static int MSG_INVALIDATE = 1; 2698 private final static int MSG_INVALIDATE_RECT = 2; 2699 private final static int MSG_DIE = 3; 2700 private final static int MSG_RESIZED = 4; 2701 private final static int MSG_RESIZED_REPORT = 5; 2702 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2703 private final static int MSG_DISPATCH_KEY = 7; 2704 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2705 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2706 private final static int MSG_IME_FINISHED_EVENT = 10; 2707 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2708 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2709 private final static int MSG_CHECK_FOCUS = 13; 2710 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2711 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2712 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2713 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2714 private final static int MSG_UPDATE_CONFIGURATION = 18; 2715 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2716 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2717 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2718 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2719 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2720 private final static int MSG_INVALIDATE_WORLD = 24; 2721 2722 final class ViewRootHandler extends Handler { 2723 @Override 2724 public String getMessageName(Message message) { 2725 switch (message.what) { 2726 case MSG_INVALIDATE: 2727 return "MSG_INVALIDATE"; 2728 case MSG_INVALIDATE_RECT: 2729 return "MSG_INVALIDATE_RECT"; 2730 case MSG_DIE: 2731 return "MSG_DIE"; 2732 case MSG_RESIZED: 2733 return "MSG_RESIZED"; 2734 case MSG_RESIZED_REPORT: 2735 return "MSG_RESIZED_REPORT"; 2736 case MSG_WINDOW_FOCUS_CHANGED: 2737 return "MSG_WINDOW_FOCUS_CHANGED"; 2738 case MSG_DISPATCH_KEY: 2739 return "MSG_DISPATCH_KEY"; 2740 case MSG_DISPATCH_APP_VISIBILITY: 2741 return "MSG_DISPATCH_APP_VISIBILITY"; 2742 case MSG_DISPATCH_GET_NEW_SURFACE: 2743 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2744 case MSG_IME_FINISHED_EVENT: 2745 return "MSG_IME_FINISHED_EVENT"; 2746 case MSG_DISPATCH_KEY_FROM_IME: 2747 return "MSG_DISPATCH_KEY_FROM_IME"; 2748 case MSG_FINISH_INPUT_CONNECTION: 2749 return "MSG_FINISH_INPUT_CONNECTION"; 2750 case MSG_CHECK_FOCUS: 2751 return "MSG_CHECK_FOCUS"; 2752 case MSG_CLOSE_SYSTEM_DIALOGS: 2753 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2754 case MSG_DISPATCH_DRAG_EVENT: 2755 return "MSG_DISPATCH_DRAG_EVENT"; 2756 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2757 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2758 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2759 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2760 case MSG_UPDATE_CONFIGURATION: 2761 return "MSG_UPDATE_CONFIGURATION"; 2762 case MSG_PROCESS_INPUT_EVENTS: 2763 return "MSG_PROCESS_INPUT_EVENTS"; 2764 case MSG_DISPATCH_SCREEN_STATE: 2765 return "MSG_DISPATCH_SCREEN_STATE"; 2766 case MSG_INVALIDATE_DISPLAY_LIST: 2767 return "MSG_INVALIDATE_DISPLAY_LIST"; 2768 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2769 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2770 case MSG_DISPATCH_DONE_ANIMATING: 2771 return "MSG_DISPATCH_DONE_ANIMATING"; 2772 } 2773 return super.getMessageName(message); 2774 } 2775 2776 @Override 2777 public void handleMessage(Message msg) { 2778 switch (msg.what) { 2779 case MSG_INVALIDATE: 2780 ((View) msg.obj).invalidate(); 2781 break; 2782 case MSG_INVALIDATE_RECT: 2783 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2784 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2785 info.release(); 2786 break; 2787 case MSG_IME_FINISHED_EVENT: 2788 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2789 break; 2790 case MSG_PROCESS_INPUT_EVENTS: 2791 mProcessInputEventsScheduled = false; 2792 doProcessInputEvents(); 2793 break; 2794 case MSG_DISPATCH_APP_VISIBILITY: 2795 handleAppVisibility(msg.arg1 != 0); 2796 break; 2797 case MSG_DISPATCH_GET_NEW_SURFACE: 2798 handleGetNewSurface(); 2799 break; 2800 case MSG_RESIZED: 2801 ResizedInfo ri = (ResizedInfo)msg.obj; 2802 2803 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2804 && mPendingContentInsets.equals(ri.contentInsets) 2805 && mPendingVisibleInsets.equals(ri.visibleInsets) 2806 && ((ResizedInfo)msg.obj).newConfig == null) { 2807 break; 2808 } 2809 // fall through... 2810 case MSG_RESIZED_REPORT: 2811 if (mAdded) { 2812 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2813 if (config != null) { 2814 updateConfiguration(config, false); 2815 } 2816 mWinFrame.left = 0; 2817 mWinFrame.right = msg.arg1; 2818 mWinFrame.top = 0; 2819 mWinFrame.bottom = msg.arg2; 2820 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2821 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2822 if (msg.what == MSG_RESIZED_REPORT) { 2823 mReportNextDraw = true; 2824 } 2825 2826 if (mView != null) { 2827 forceLayout(mView); 2828 } 2829 requestLayout(); 2830 } 2831 break; 2832 case MSG_WINDOW_FOCUS_CHANGED: { 2833 if (mAdded) { 2834 boolean hasWindowFocus = msg.arg1 != 0; 2835 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2836 2837 profileRendering(hasWindowFocus); 2838 2839 if (hasWindowFocus) { 2840 boolean inTouchMode = msg.arg2 != 0; 2841 ensureTouchModeLocally(inTouchMode); 2842 2843 if (mAttachInfo.mHardwareRenderer != null && 2844 mSurface != null && mSurface.isValid()) { 2845 mFullRedrawNeeded = true; 2846 try { 2847 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2848 mHolder); 2849 } catch (Surface.OutOfResourcesException e) { 2850 Log.e(TAG, "OutOfResourcesException locking surface", e); 2851 try { 2852 if (!sWindowSession.outOfMemory(mWindow)) { 2853 Slog.w(TAG, "No processes killed for memory; killing self"); 2854 Process.killProcess(Process.myPid()); 2855 } 2856 } catch (RemoteException ex) { 2857 } 2858 // Retry in a bit. 2859 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2860 return; 2861 } 2862 } 2863 } 2864 2865 mLastWasImTarget = WindowManager.LayoutParams 2866 .mayUseInputMethod(mWindowAttributes.flags); 2867 2868 InputMethodManager imm = InputMethodManager.peekInstance(); 2869 if (mView != null) { 2870 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2871 imm.startGettingWindowFocus(mView); 2872 } 2873 mAttachInfo.mKeyDispatchState.reset(); 2874 mView.dispatchWindowFocusChanged(hasWindowFocus); 2875 } 2876 2877 // Note: must be done after the focus change callbacks, 2878 // so all of the view state is set up correctly. 2879 if (hasWindowFocus) { 2880 if (imm != null && mLastWasImTarget) { 2881 imm.onWindowFocus(mView, mView.findFocus(), 2882 mWindowAttributes.softInputMode, 2883 !mHasHadWindowFocus, mWindowAttributes.flags); 2884 } 2885 // Clear the forward bit. We can just do this directly, since 2886 // the window manager doesn't care about it. 2887 mWindowAttributes.softInputMode &= 2888 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2889 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2890 .softInputMode &= 2891 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2892 mHasHadWindowFocus = true; 2893 } 2894 2895 setAccessibilityFocusedHost(null); 2896 2897 if (mView != null && mAccessibilityManager.isEnabled()) { 2898 if (hasWindowFocus) { 2899 mView.sendAccessibilityEvent( 2900 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2901 } 2902 } 2903 } 2904 } break; 2905 case MSG_DIE: 2906 doDie(); 2907 break; 2908 case MSG_DISPATCH_KEY: { 2909 KeyEvent event = (KeyEvent)msg.obj; 2910 enqueueInputEvent(event, null, 0, true); 2911 } break; 2912 case MSG_DISPATCH_KEY_FROM_IME: { 2913 if (LOCAL_LOGV) Log.v( 2914 TAG, "Dispatching key " 2915 + msg.obj + " from IME to " + mView); 2916 KeyEvent event = (KeyEvent)msg.obj; 2917 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2918 // The IME is trying to say this event is from the 2919 // system! Bad bad bad! 2920 //noinspection UnusedAssignment 2921 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2922 } 2923 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2924 } break; 2925 case MSG_FINISH_INPUT_CONNECTION: { 2926 InputMethodManager imm = InputMethodManager.peekInstance(); 2927 if (imm != null) { 2928 imm.reportFinishInputConnection((InputConnection)msg.obj); 2929 } 2930 } break; 2931 case MSG_CHECK_FOCUS: { 2932 InputMethodManager imm = InputMethodManager.peekInstance(); 2933 if (imm != null) { 2934 imm.checkFocus(); 2935 } 2936 } break; 2937 case MSG_CLOSE_SYSTEM_DIALOGS: { 2938 if (mView != null) { 2939 mView.onCloseSystemDialogs((String)msg.obj); 2940 } 2941 } break; 2942 case MSG_DISPATCH_DRAG_EVENT: 2943 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2944 DragEvent event = (DragEvent)msg.obj; 2945 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2946 handleDragEvent(event); 2947 } break; 2948 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2949 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2950 } break; 2951 case MSG_UPDATE_CONFIGURATION: { 2952 Configuration config = (Configuration)msg.obj; 2953 if (config.isOtherSeqNewer(mLastConfiguration)) { 2954 config = mLastConfiguration; 2955 } 2956 updateConfiguration(config, false); 2957 } break; 2958 case MSG_DISPATCH_SCREEN_STATE: { 2959 if (mView != null) { 2960 handleScreenStateChange(msg.arg1 == 1); 2961 } 2962 } break; 2963 case MSG_INVALIDATE_DISPLAY_LIST: { 2964 invalidateDisplayLists(); 2965 } break; 2966 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2967 setAccessibilityFocusedHost(null); 2968 } break; 2969 case MSG_DISPATCH_DONE_ANIMATING: { 2970 handleDispatchDoneAnimating(); 2971 } break; 2972 case MSG_INVALIDATE_WORLD: { 2973 invalidateWorld(mView); 2974 } break; 2975 } 2976 } 2977 } 2978 2979 final ViewRootHandler mHandler = new ViewRootHandler(); 2980 2981 /** 2982 * Something in the current window tells us we need to change the touch mode. For 2983 * example, we are not in touch mode, and the user touches the screen. 2984 * 2985 * If the touch mode has changed, tell the window manager, and handle it locally. 2986 * 2987 * @param inTouchMode Whether we want to be in touch mode. 2988 * @return True if the touch mode changed and focus changed was changed as a result 2989 */ 2990 boolean ensureTouchMode(boolean inTouchMode) { 2991 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2992 + "touch mode is " + mAttachInfo.mInTouchMode); 2993 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2994 2995 // tell the window manager 2996 try { 2997 sWindowSession.setInTouchMode(inTouchMode); 2998 } catch (RemoteException e) { 2999 throw new RuntimeException(e); 3000 } 3001 3002 // handle the change 3003 return ensureTouchModeLocally(inTouchMode); 3004 } 3005 3006 /** 3007 * Ensure that the touch mode for this window is set, and if it is changing, 3008 * take the appropriate action. 3009 * @param inTouchMode Whether we want to be in touch mode. 3010 * @return True if the touch mode changed and focus changed was changed as a result 3011 */ 3012 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3013 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3014 + "touch mode is " + mAttachInfo.mInTouchMode); 3015 3016 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3017 3018 mAttachInfo.mInTouchMode = inTouchMode; 3019 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3020 3021 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3022 } 3023 3024 private boolean enterTouchMode() { 3025 if (mView != null) { 3026 if (mView.hasFocus()) { 3027 // note: not relying on mFocusedView here because this could 3028 // be when the window is first being added, and mFocused isn't 3029 // set yet. 3030 final View focused = mView.findFocus(); 3031 if (focused != null && !focused.isFocusableInTouchMode()) { 3032 3033 final ViewGroup ancestorToTakeFocus = 3034 findAncestorToTakeFocusInTouchMode(focused); 3035 if (ancestorToTakeFocus != null) { 3036 // there is an ancestor that wants focus after its descendants that 3037 // is focusable in touch mode.. give it focus 3038 return ancestorToTakeFocus.requestFocus(); 3039 } else { 3040 // nothing appropriate to have focus in touch mode, clear it out 3041 mView.unFocus(); 3042 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3043 mFocusedView = null; 3044 mOldFocusedView = null; 3045 return true; 3046 } 3047 } 3048 } 3049 } 3050 return false; 3051 } 3052 3053 /** 3054 * Find an ancestor of focused that wants focus after its descendants and is 3055 * focusable in touch mode. 3056 * @param focused The currently focused view. 3057 * @return An appropriate view, or null if no such view exists. 3058 */ 3059 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3060 ViewParent parent = focused.getParent(); 3061 while (parent instanceof ViewGroup) { 3062 final ViewGroup vgParent = (ViewGroup) parent; 3063 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3064 && vgParent.isFocusableInTouchMode()) { 3065 return vgParent; 3066 } 3067 if (vgParent.isRootNamespace()) { 3068 return null; 3069 } else { 3070 parent = vgParent.getParent(); 3071 } 3072 } 3073 return null; 3074 } 3075 3076 private boolean leaveTouchMode() { 3077 if (mView != null) { 3078 if (mView.hasFocus()) { 3079 // i learned the hard way to not trust mFocusedView :) 3080 mFocusedView = mView.findFocus(); 3081 if (!(mFocusedView instanceof ViewGroup)) { 3082 // some view has focus, let it keep it 3083 return false; 3084 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3085 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3086 // some view group has focus, and doesn't prefer its children 3087 // over itself for focus, so let them keep it. 3088 return false; 3089 } 3090 } 3091 3092 // find the best view to give focus to in this brave new non-touch-mode 3093 // world 3094 final View focused = focusSearch(null, View.FOCUS_DOWN); 3095 if (focused != null) { 3096 return focused.requestFocus(View.FOCUS_DOWN); 3097 } 3098 } 3099 return false; 3100 } 3101 3102 private void deliverInputEvent(QueuedInputEvent q) { 3103 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3104 try { 3105 if (q.mEvent instanceof KeyEvent) { 3106 deliverKeyEvent(q); 3107 } else { 3108 final int source = q.mEvent.getSource(); 3109 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3110 deliverPointerEvent(q); 3111 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3112 deliverTrackballEvent(q); 3113 } else { 3114 deliverGenericMotionEvent(q); 3115 } 3116 } 3117 } finally { 3118 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3119 } 3120 } 3121 3122 private void deliverPointerEvent(QueuedInputEvent q) { 3123 final MotionEvent event = (MotionEvent)q.mEvent; 3124 final boolean isTouchEvent = event.isTouchEvent(); 3125 if (mInputEventConsistencyVerifier != null) { 3126 if (isTouchEvent) { 3127 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3128 } else { 3129 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3130 } 3131 } 3132 3133 // If there is no view, then the event will not be handled. 3134 if (mView == null || !mAdded) { 3135 finishInputEvent(q, false); 3136 return; 3137 } 3138 3139 // Translate the pointer event for compatibility, if needed. 3140 if (mTranslator != null) { 3141 mTranslator.translateEventInScreenToAppWindow(event); 3142 } 3143 3144 // Enter touch mode on down or scroll. 3145 final int action = event.getAction(); 3146 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3147 ensureTouchMode(true); 3148 } 3149 3150 // Offset the scroll position. 3151 if (mCurScrollY != 0) { 3152 event.offsetLocation(0, mCurScrollY); 3153 } 3154 if (MEASURE_LATENCY) { 3155 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3156 } 3157 3158 // Remember the touch position for possible drag-initiation. 3159 if (isTouchEvent) { 3160 mLastTouchPoint.x = event.getRawX(); 3161 mLastTouchPoint.y = event.getRawY(); 3162 } 3163 3164 // Dispatch touch to view hierarchy. 3165 boolean handled = mView.dispatchPointerEvent(event); 3166 if (MEASURE_LATENCY) { 3167 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3168 } 3169 if (handled) { 3170 finishInputEvent(q, true); 3171 return; 3172 } 3173 3174 // Pointer event was unhandled. 3175 finishInputEvent(q, false); 3176 } 3177 3178 private void deliverTrackballEvent(QueuedInputEvent q) { 3179 final MotionEvent event = (MotionEvent)q.mEvent; 3180 if (mInputEventConsistencyVerifier != null) { 3181 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3182 } 3183 3184 // If there is no view, then the event will not be handled. 3185 if (mView == null || !mAdded) { 3186 finishInputEvent(q, false); 3187 return; 3188 } 3189 3190 // Deliver the trackball event to the view. 3191 if (mView.dispatchTrackballEvent(event)) { 3192 // If we reach this, we delivered a trackball event to mView and 3193 // mView consumed it. Because we will not translate the trackball 3194 // event into a key event, touch mode will not exit, so we exit 3195 // touch mode here. 3196 ensureTouchMode(false); 3197 3198 finishInputEvent(q, true); 3199 mLastTrackballTime = Integer.MIN_VALUE; 3200 return; 3201 } 3202 3203 // Translate the trackball event into DPAD keys and try to deliver those. 3204 final TrackballAxis x = mTrackballAxisX; 3205 final TrackballAxis y = mTrackballAxisY; 3206 3207 long curTime = SystemClock.uptimeMillis(); 3208 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3209 // It has been too long since the last movement, 3210 // so restart at the beginning. 3211 x.reset(0); 3212 y.reset(0); 3213 mLastTrackballTime = curTime; 3214 } 3215 3216 final int action = event.getAction(); 3217 final int metaState = event.getMetaState(); 3218 switch (action) { 3219 case MotionEvent.ACTION_DOWN: 3220 x.reset(2); 3221 y.reset(2); 3222 enqueueInputEvent(new KeyEvent(curTime, curTime, 3223 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3224 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3225 InputDevice.SOURCE_KEYBOARD)); 3226 break; 3227 case MotionEvent.ACTION_UP: 3228 x.reset(2); 3229 y.reset(2); 3230 enqueueInputEvent(new KeyEvent(curTime, curTime, 3231 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3232 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3233 InputDevice.SOURCE_KEYBOARD)); 3234 break; 3235 } 3236 3237 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3238 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3239 + " move=" + event.getX() 3240 + " / Y=" + y.position + " step=" 3241 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3242 + " move=" + event.getY()); 3243 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3244 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3245 3246 // Generate DPAD events based on the trackball movement. 3247 // We pick the axis that has moved the most as the direction of 3248 // the DPAD. When we generate DPAD events for one axis, then the 3249 // other axis is reset -- we don't want to perform DPAD jumps due 3250 // to slight movements in the trackball when making major movements 3251 // along the other axis. 3252 int keycode = 0; 3253 int movement = 0; 3254 float accel = 1; 3255 if (xOff > yOff) { 3256 movement = x.generate((2/event.getXPrecision())); 3257 if (movement != 0) { 3258 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3259 : KeyEvent.KEYCODE_DPAD_LEFT; 3260 accel = x.acceleration; 3261 y.reset(2); 3262 } 3263 } else if (yOff > 0) { 3264 movement = y.generate((2/event.getYPrecision())); 3265 if (movement != 0) { 3266 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3267 : KeyEvent.KEYCODE_DPAD_UP; 3268 accel = y.acceleration; 3269 x.reset(2); 3270 } 3271 } 3272 3273 if (keycode != 0) { 3274 if (movement < 0) movement = -movement; 3275 int accelMovement = (int)(movement * accel); 3276 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3277 + " accelMovement=" + accelMovement 3278 + " accel=" + accel); 3279 if (accelMovement > movement) { 3280 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3281 + keycode); 3282 movement--; 3283 int repeatCount = accelMovement - movement; 3284 enqueueInputEvent(new KeyEvent(curTime, curTime, 3285 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3286 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3287 InputDevice.SOURCE_KEYBOARD)); 3288 } 3289 while (movement > 0) { 3290 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3291 + keycode); 3292 movement--; 3293 curTime = SystemClock.uptimeMillis(); 3294 enqueueInputEvent(new KeyEvent(curTime, curTime, 3295 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3296 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3297 InputDevice.SOURCE_KEYBOARD)); 3298 enqueueInputEvent(new KeyEvent(curTime, curTime, 3299 KeyEvent.ACTION_UP, keycode, 0, metaState, 3300 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3301 InputDevice.SOURCE_KEYBOARD)); 3302 } 3303 mLastTrackballTime = curTime; 3304 } 3305 3306 // Unfortunately we can't tell whether the application consumed the keys, so 3307 // we always consider the trackball event handled. 3308 finishInputEvent(q, true); 3309 } 3310 3311 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3312 final MotionEvent event = (MotionEvent)q.mEvent; 3313 if (mInputEventConsistencyVerifier != null) { 3314 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3315 } 3316 3317 final int source = event.getSource(); 3318 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3319 3320 // If there is no view, then the event will not be handled. 3321 if (mView == null || !mAdded) { 3322 if (isJoystick) { 3323 updateJoystickDirection(event, false); 3324 } 3325 finishInputEvent(q, false); 3326 return; 3327 } 3328 3329 // Deliver the event to the view. 3330 if (mView.dispatchGenericMotionEvent(event)) { 3331 if (isJoystick) { 3332 updateJoystickDirection(event, false); 3333 } 3334 finishInputEvent(q, true); 3335 return; 3336 } 3337 3338 if (isJoystick) { 3339 // Translate the joystick event into DPAD keys and try to deliver those. 3340 updateJoystickDirection(event, true); 3341 finishInputEvent(q, true); 3342 } else { 3343 finishInputEvent(q, false); 3344 } 3345 } 3346 3347 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3348 final long time = event.getEventTime(); 3349 final int metaState = event.getMetaState(); 3350 final int deviceId = event.getDeviceId(); 3351 final int source = event.getSource(); 3352 3353 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3354 if (xDirection == 0) { 3355 xDirection = joystickAxisValueToDirection(event.getX()); 3356 } 3357 3358 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3359 if (yDirection == 0) { 3360 yDirection = joystickAxisValueToDirection(event.getY()); 3361 } 3362 3363 if (xDirection != mLastJoystickXDirection) { 3364 if (mLastJoystickXKeyCode != 0) { 3365 enqueueInputEvent(new KeyEvent(time, time, 3366 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3367 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3368 mLastJoystickXKeyCode = 0; 3369 } 3370 3371 mLastJoystickXDirection = xDirection; 3372 3373 if (xDirection != 0 && synthesizeNewKeys) { 3374 mLastJoystickXKeyCode = xDirection > 0 3375 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3376 enqueueInputEvent(new KeyEvent(time, time, 3377 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3378 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3379 } 3380 } 3381 3382 if (yDirection != mLastJoystickYDirection) { 3383 if (mLastJoystickYKeyCode != 0) { 3384 enqueueInputEvent(new KeyEvent(time, time, 3385 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3386 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3387 mLastJoystickYKeyCode = 0; 3388 } 3389 3390 mLastJoystickYDirection = yDirection; 3391 3392 if (yDirection != 0 && synthesizeNewKeys) { 3393 mLastJoystickYKeyCode = yDirection > 0 3394 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3395 enqueueInputEvent(new KeyEvent(time, time, 3396 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3397 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3398 } 3399 } 3400 } 3401 3402 private static int joystickAxisValueToDirection(float value) { 3403 if (value >= 0.5f) { 3404 return 1; 3405 } else if (value <= -0.5f) { 3406 return -1; 3407 } else { 3408 return 0; 3409 } 3410 } 3411 3412 /** 3413 * Returns true if the key is used for keyboard navigation. 3414 * @param keyEvent The key event. 3415 * @return True if the key is used for keyboard navigation. 3416 */ 3417 private static boolean isNavigationKey(KeyEvent keyEvent) { 3418 switch (keyEvent.getKeyCode()) { 3419 case KeyEvent.KEYCODE_DPAD_LEFT: 3420 case KeyEvent.KEYCODE_DPAD_RIGHT: 3421 case KeyEvent.KEYCODE_DPAD_UP: 3422 case KeyEvent.KEYCODE_DPAD_DOWN: 3423 case KeyEvent.KEYCODE_DPAD_CENTER: 3424 case KeyEvent.KEYCODE_PAGE_UP: 3425 case KeyEvent.KEYCODE_PAGE_DOWN: 3426 case KeyEvent.KEYCODE_MOVE_HOME: 3427 case KeyEvent.KEYCODE_MOVE_END: 3428 case KeyEvent.KEYCODE_TAB: 3429 case KeyEvent.KEYCODE_SPACE: 3430 case KeyEvent.KEYCODE_ENTER: 3431 return true; 3432 } 3433 return false; 3434 } 3435 3436 /** 3437 * Returns true if the key is used for typing. 3438 * @param keyEvent The key event. 3439 * @return True if the key is used for typing. 3440 */ 3441 private static boolean isTypingKey(KeyEvent keyEvent) { 3442 return keyEvent.getUnicodeChar() > 0; 3443 } 3444 3445 /** 3446 * See if the key event means we should leave touch mode (and leave touch mode if so). 3447 * @param event The key event. 3448 * @return Whether this key event should be consumed (meaning the act of 3449 * leaving touch mode alone is considered the event). 3450 */ 3451 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3452 // Only relevant in touch mode. 3453 if (!mAttachInfo.mInTouchMode) { 3454 return false; 3455 } 3456 3457 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3458 final int action = event.getAction(); 3459 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3460 return false; 3461 } 3462 3463 // Don't leave touch mode if the IME told us not to. 3464 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3465 return false; 3466 } 3467 3468 // If the key can be used for keyboard navigation then leave touch mode 3469 // and select a focused view if needed (in ensureTouchMode). 3470 // When a new focused view is selected, we consume the navigation key because 3471 // navigation doesn't make much sense unless a view already has focus so 3472 // the key's purpose is to set focus. 3473 if (isNavigationKey(event)) { 3474 return ensureTouchMode(false); 3475 } 3476 3477 // If the key can be used for typing then leave touch mode 3478 // and select a focused view if needed (in ensureTouchMode). 3479 // Always allow the view to process the typing key. 3480 if (isTypingKey(event)) { 3481 ensureTouchMode(false); 3482 return false; 3483 } 3484 3485 return false; 3486 } 3487 3488 private void deliverKeyEvent(QueuedInputEvent q) { 3489 final KeyEvent event = (KeyEvent)q.mEvent; 3490 if (mInputEventConsistencyVerifier != null) { 3491 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3492 } 3493 3494 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3495 // If there is no view, then the event will not be handled. 3496 if (mView == null || !mAdded) { 3497 finishInputEvent(q, false); 3498 return; 3499 } 3500 3501 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3502 3503 // Perform predispatching before the IME. 3504 if (mView.dispatchKeyEventPreIme(event)) { 3505 finishInputEvent(q, true); 3506 return; 3507 } 3508 3509 // Dispatch to the IME before propagating down the view hierarchy. 3510 // The IME will eventually call back into handleImeFinishedEvent. 3511 if (mLastWasImTarget) { 3512 InputMethodManager imm = InputMethodManager.peekInstance(); 3513 if (imm != null) { 3514 final int seq = event.getSequenceNumber(); 3515 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3516 + seq + " event=" + event); 3517 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3518 return; 3519 } 3520 } 3521 } 3522 3523 // Not dispatching to IME, continue with post IME actions. 3524 deliverKeyEventPostIme(q); 3525 } 3526 3527 void handleImeFinishedEvent(int seq, boolean handled) { 3528 final QueuedInputEvent q = mCurrentInputEvent; 3529 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3530 final KeyEvent event = (KeyEvent)q.mEvent; 3531 if (DEBUG_IMF) { 3532 Log.v(TAG, "IME finished event: seq=" + seq 3533 + " handled=" + handled + " event=" + event); 3534 } 3535 if (handled) { 3536 finishInputEvent(q, true); 3537 } else { 3538 deliverKeyEventPostIme(q); 3539 } 3540 } else { 3541 if (DEBUG_IMF) { 3542 Log.v(TAG, "IME finished event: seq=" + seq 3543 + " handled=" + handled + ", event not found!"); 3544 } 3545 } 3546 } 3547 3548 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3549 final KeyEvent event = (KeyEvent)q.mEvent; 3550 3551 // If the view went away, then the event will not be handled. 3552 if (mView == null || !mAdded) { 3553 finishInputEvent(q, false); 3554 return; 3555 } 3556 3557 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3558 if (checkForLeavingTouchModeAndConsume(event)) { 3559 finishInputEvent(q, true); 3560 return; 3561 } 3562 3563 // Make sure the fallback event policy sees all keys that will be delivered to the 3564 // view hierarchy. 3565 mFallbackEventHandler.preDispatchKeyEvent(event); 3566 3567 // Deliver the key to the view hierarchy. 3568 if (mView.dispatchKeyEvent(event)) { 3569 finishInputEvent(q, true); 3570 return; 3571 } 3572 3573 // If the Control modifier is held, try to interpret the key as a shortcut. 3574 if (event.getAction() == KeyEvent.ACTION_DOWN 3575 && event.isCtrlPressed() 3576 && event.getRepeatCount() == 0 3577 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3578 if (mView.dispatchKeyShortcutEvent(event)) { 3579 finishInputEvent(q, true); 3580 return; 3581 } 3582 } 3583 3584 // Apply the fallback event policy. 3585 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3586 finishInputEvent(q, true); 3587 return; 3588 } 3589 3590 // Handle automatic focus changes. 3591 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3592 int direction = 0; 3593 switch (event.getKeyCode()) { 3594 case KeyEvent.KEYCODE_DPAD_LEFT: 3595 if (event.hasNoModifiers()) { 3596 direction = View.FOCUS_LEFT; 3597 } 3598 break; 3599 case KeyEvent.KEYCODE_DPAD_RIGHT: 3600 if (event.hasNoModifiers()) { 3601 direction = View.FOCUS_RIGHT; 3602 } 3603 break; 3604 case KeyEvent.KEYCODE_DPAD_UP: 3605 if (event.hasNoModifiers()) { 3606 direction = View.FOCUS_UP; 3607 } 3608 break; 3609 case KeyEvent.KEYCODE_DPAD_DOWN: 3610 if (event.hasNoModifiers()) { 3611 direction = View.FOCUS_DOWN; 3612 } 3613 break; 3614 case KeyEvent.KEYCODE_TAB: 3615 if (event.hasNoModifiers()) { 3616 direction = View.FOCUS_FORWARD; 3617 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3618 direction = View.FOCUS_BACKWARD; 3619 } 3620 break; 3621 } 3622 if (direction != 0) { 3623 View focused = mView.findFocus(); 3624 if (focused != null) { 3625 View v = focused.focusSearch(direction); 3626 if (v != null && v != focused) { 3627 // do the math the get the interesting rect 3628 // of previous focused into the coord system of 3629 // newly focused view 3630 focused.getFocusedRect(mTempRect); 3631 if (mView instanceof ViewGroup) { 3632 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3633 focused, mTempRect); 3634 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3635 v, mTempRect); 3636 } 3637 if (v.requestFocus(direction, mTempRect)) { 3638 playSoundEffect(SoundEffectConstants 3639 .getContantForFocusDirection(direction)); 3640 finishInputEvent(q, true); 3641 return; 3642 } 3643 } 3644 3645 // Give the focused view a last chance to handle the dpad key. 3646 if (mView.dispatchUnhandledMove(focused, direction)) { 3647 finishInputEvent(q, true); 3648 return; 3649 } 3650 } 3651 } 3652 } 3653 3654 // Key was unhandled. 3655 finishInputEvent(q, false); 3656 } 3657 3658 /* drag/drop */ 3659 void setLocalDragState(Object obj) { 3660 mLocalDragState = obj; 3661 } 3662 3663 private void handleDragEvent(DragEvent event) { 3664 // From the root, only drag start/end/location are dispatched. entered/exited 3665 // are determined and dispatched by the viewgroup hierarchy, who then report 3666 // that back here for ultimate reporting back to the framework. 3667 if (mView != null && mAdded) { 3668 final int what = event.mAction; 3669 3670 if (what == DragEvent.ACTION_DRAG_EXITED) { 3671 // A direct EXITED event means that the window manager knows we've just crossed 3672 // a window boundary, so the current drag target within this one must have 3673 // just been exited. Send it the usual notifications and then we're done 3674 // for now. 3675 mView.dispatchDragEvent(event); 3676 } else { 3677 // Cache the drag description when the operation starts, then fill it in 3678 // on subsequent calls as a convenience 3679 if (what == DragEvent.ACTION_DRAG_STARTED) { 3680 mCurrentDragView = null; // Start the current-recipient tracking 3681 mDragDescription = event.mClipDescription; 3682 } else { 3683 event.mClipDescription = mDragDescription; 3684 } 3685 3686 // For events with a [screen] location, translate into window coordinates 3687 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3688 mDragPoint.set(event.mX, event.mY); 3689 if (mTranslator != null) { 3690 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3691 } 3692 3693 if (mCurScrollY != 0) { 3694 mDragPoint.offset(0, mCurScrollY); 3695 } 3696 3697 event.mX = mDragPoint.x; 3698 event.mY = mDragPoint.y; 3699 } 3700 3701 // Remember who the current drag target is pre-dispatch 3702 final View prevDragView = mCurrentDragView; 3703 3704 // Now dispatch the drag/drop event 3705 boolean result = mView.dispatchDragEvent(event); 3706 3707 // If we changed apparent drag target, tell the OS about it 3708 if (prevDragView != mCurrentDragView) { 3709 try { 3710 if (prevDragView != null) { 3711 sWindowSession.dragRecipientExited(mWindow); 3712 } 3713 if (mCurrentDragView != null) { 3714 sWindowSession.dragRecipientEntered(mWindow); 3715 } 3716 } catch (RemoteException e) { 3717 Slog.e(TAG, "Unable to note drag target change"); 3718 } 3719 } 3720 3721 // Report the drop result when we're done 3722 if (what == DragEvent.ACTION_DROP) { 3723 mDragDescription = null; 3724 try { 3725 Log.i(TAG, "Reporting drop result: " + result); 3726 sWindowSession.reportDropResult(mWindow, result); 3727 } catch (RemoteException e) { 3728 Log.e(TAG, "Unable to report drop result"); 3729 } 3730 } 3731 3732 // When the drag operation ends, release any local state object 3733 // that may have been in use 3734 if (what == DragEvent.ACTION_DRAG_ENDED) { 3735 setLocalDragState(null); 3736 } 3737 } 3738 } 3739 event.recycle(); 3740 } 3741 3742 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3743 if (mSeq != args.seq) { 3744 // The sequence has changed, so we need to update our value and make 3745 // sure to do a traversal afterward so the window manager is given our 3746 // most recent data. 3747 mSeq = args.seq; 3748 mAttachInfo.mForceReportNewAttributes = true; 3749 scheduleTraversals(); 3750 } 3751 if (mView == null) return; 3752 if (args.localChanges != 0) { 3753 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3754 } 3755 if (mAttachInfo != null) { 3756 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3757 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3758 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3759 mView.dispatchSystemUiVisibilityChanged(visibility); 3760 } 3761 } 3762 } 3763 3764 public void handleDispatchDoneAnimating() { 3765 if (mWindowsAnimating) { 3766 mWindowsAnimating = false; 3767 if (!mDirty.isEmpty() || mIsAnimating) { 3768 scheduleTraversals(); 3769 } 3770 } 3771 } 3772 3773 public void getLastTouchPoint(Point outLocation) { 3774 outLocation.x = (int) mLastTouchPoint.x; 3775 outLocation.y = (int) mLastTouchPoint.y; 3776 } 3777 3778 public void setDragFocus(View newDragTarget) { 3779 if (mCurrentDragView != newDragTarget) { 3780 mCurrentDragView = newDragTarget; 3781 } 3782 } 3783 3784 private AudioManager getAudioManager() { 3785 if (mView == null) { 3786 throw new IllegalStateException("getAudioManager called when there is no mView"); 3787 } 3788 if (mAudioManager == null) { 3789 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3790 } 3791 return mAudioManager; 3792 } 3793 3794 public AccessibilityInteractionController getAccessibilityInteractionController() { 3795 if (mView == null) { 3796 throw new IllegalStateException("getAccessibilityInteractionController" 3797 + " called when there is no mView"); 3798 } 3799 if (mAccessibilityInteractionController == null) { 3800 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3801 } 3802 return mAccessibilityInteractionController; 3803 } 3804 3805 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3806 boolean insetsPending) throws RemoteException { 3807 3808 float appScale = mAttachInfo.mApplicationScale; 3809 boolean restore = false; 3810 if (params != null && mTranslator != null) { 3811 restore = true; 3812 params.backup(); 3813 mTranslator.translateWindowLayout(params); 3814 } 3815 if (params != null) { 3816 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3817 } 3818 mPendingConfiguration.seq = 0; 3819 //Log.d(TAG, ">>>>>> CALLING relayout"); 3820 if (params != null && mOrigWindowType != params.type) { 3821 // For compatibility with old apps, don't crash here. 3822 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3823 Slog.w(TAG, "Window type can not be changed after " 3824 + "the window is added; ignoring change of " + mView); 3825 params.type = mOrigWindowType; 3826 } 3827 } 3828 int relayoutResult = sWindowSession.relayout( 3829 mWindow, mSeq, params, 3830 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3831 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3832 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3833 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3834 mPendingConfiguration, mSurface); 3835 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3836 if (restore) { 3837 params.restore(); 3838 } 3839 3840 if (mTranslator != null) { 3841 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3842 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3843 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3844 } 3845 return relayoutResult; 3846 } 3847 3848 /** 3849 * {@inheritDoc} 3850 */ 3851 public void playSoundEffect(int effectId) { 3852 checkThread(); 3853 3854 try { 3855 final AudioManager audioManager = getAudioManager(); 3856 3857 switch (effectId) { 3858 case SoundEffectConstants.CLICK: 3859 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3860 return; 3861 case SoundEffectConstants.NAVIGATION_DOWN: 3862 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3863 return; 3864 case SoundEffectConstants.NAVIGATION_LEFT: 3865 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3866 return; 3867 case SoundEffectConstants.NAVIGATION_RIGHT: 3868 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3869 return; 3870 case SoundEffectConstants.NAVIGATION_UP: 3871 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3872 return; 3873 default: 3874 throw new IllegalArgumentException("unknown effect id " + effectId + 3875 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3876 } 3877 } catch (IllegalStateException e) { 3878 // Exception thrown by getAudioManager() when mView is null 3879 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3880 e.printStackTrace(); 3881 } 3882 } 3883 3884 /** 3885 * {@inheritDoc} 3886 */ 3887 public boolean performHapticFeedback(int effectId, boolean always) { 3888 try { 3889 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3890 } catch (RemoteException e) { 3891 return false; 3892 } 3893 } 3894 3895 /** 3896 * {@inheritDoc} 3897 */ 3898 public View focusSearch(View focused, int direction) { 3899 checkThread(); 3900 if (!(mView instanceof ViewGroup)) { 3901 return null; 3902 } 3903 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3904 } 3905 3906 public void debug() { 3907 mView.debug(); 3908 } 3909 3910 public void dumpGfxInfo(int[] info) { 3911 if (mView != null) { 3912 getGfxInfo(mView, info); 3913 } else { 3914 info[0] = info[1] = 0; 3915 } 3916 } 3917 3918 private static void getGfxInfo(View view, int[] info) { 3919 DisplayList displayList = view.mDisplayList; 3920 info[0]++; 3921 if (displayList != null) { 3922 info[1] += displayList.getSize(); 3923 } 3924 3925 if (view instanceof ViewGroup) { 3926 ViewGroup group = (ViewGroup) view; 3927 3928 int count = group.getChildCount(); 3929 for (int i = 0; i < count; i++) { 3930 getGfxInfo(group.getChildAt(i), info); 3931 } 3932 } 3933 } 3934 3935 public void die(boolean immediate) { 3936 if (immediate) { 3937 doDie(); 3938 } else { 3939 if (!mIsDrawing) { 3940 destroyHardwareRenderer(); 3941 } else { 3942 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3943 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3944 } 3945 mHandler.sendEmptyMessage(MSG_DIE); 3946 } 3947 } 3948 3949 void doDie() { 3950 checkThread(); 3951 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3952 synchronized (this) { 3953 if (mAdded) { 3954 dispatchDetachedFromWindow(); 3955 } 3956 3957 if (mAdded && !mFirst) { 3958 destroyHardwareRenderer(); 3959 3960 if (mView != null) { 3961 int viewVisibility = mView.getVisibility(); 3962 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3963 if (mWindowAttributesChanged || viewVisibilityChanged) { 3964 // If layout params have been changed, first give them 3965 // to the window manager to make sure it has the correct 3966 // animation info. 3967 try { 3968 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3969 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3970 sWindowSession.finishDrawing(mWindow); 3971 } 3972 } catch (RemoteException e) { 3973 } 3974 } 3975 3976 mSurface.release(); 3977 } 3978 } 3979 3980 mAdded = false; 3981 } 3982 } 3983 3984 public void requestUpdateConfiguration(Configuration config) { 3985 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 3986 mHandler.sendMessage(msg); 3987 } 3988 3989 public void loadSystemProperties() { 3990 boolean layout = SystemProperties.getBoolean( 3991 View.DEBUG_LAYOUT_PROPERTY, false); 3992 if (layout != mAttachInfo.mDebugLayout) { 3993 mAttachInfo.mDebugLayout = layout; 3994 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 3995 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 3996 } 3997 } 3998 } 3999 4000 private void destroyHardwareRenderer() { 4001 AttachInfo attachInfo = mAttachInfo; 4002 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4003 4004 if (hardwareRenderer != null) { 4005 if (mView != null) { 4006 hardwareRenderer.destroyHardwareResources(mView); 4007 } 4008 hardwareRenderer.destroy(true); 4009 hardwareRenderer.setRequested(false); 4010 4011 attachInfo.mHardwareRenderer = null; 4012 attachInfo.mHardwareAccelerated = false; 4013 } 4014 } 4015 4016 void dispatchImeFinishedEvent(int seq, boolean handled) { 4017 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4018 msg.arg1 = seq; 4019 msg.arg2 = handled ? 1 : 0; 4020 msg.setAsynchronous(true); 4021 mHandler.sendMessage(msg); 4022 } 4023 4024 public void dispatchFinishInputConnection(InputConnection connection) { 4025 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4026 mHandler.sendMessage(msg); 4027 } 4028 4029 public void dispatchResized(int w, int h, Rect contentInsets, 4030 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4031 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4032 + " h=" + h + " contentInsets=" + contentInsets.toShortString() 4033 + " visibleInsets=" + visibleInsets.toShortString() 4034 + " reportDraw=" + reportDraw); 4035 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4036 if (mTranslator != null) { 4037 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4038 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4039 w *= mTranslator.applicationInvertedScale; 4040 h *= mTranslator.applicationInvertedScale; 4041 } 4042 msg.arg1 = w; 4043 msg.arg2 = h; 4044 ResizedInfo ri = new ResizedInfo(); 4045 ri.contentInsets = new Rect(contentInsets); 4046 ri.visibleInsets = new Rect(visibleInsets); 4047 ri.newConfig = newConfig; 4048 msg.obj = ri; 4049 mHandler.sendMessage(msg); 4050 } 4051 4052 /** 4053 * Represents a pending input event that is waiting in a queue. 4054 * 4055 * Input events are processed in serial order by the timestamp specified by 4056 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4057 * one input event to the application at a time and waits for the application 4058 * to finish handling it before delivering the next one. 4059 * 4060 * However, because the application or IME can synthesize and inject multiple 4061 * key events at a time without going through the input dispatcher, we end up 4062 * needing a queue on the application's side. 4063 */ 4064 private static final class QueuedInputEvent { 4065 public static final int FLAG_DELIVER_POST_IME = 1; 4066 4067 public QueuedInputEvent mNext; 4068 4069 public InputEvent mEvent; 4070 public InputEventReceiver mReceiver; 4071 public int mFlags; 4072 } 4073 4074 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4075 InputEventReceiver receiver, int flags) { 4076 QueuedInputEvent q = mQueuedInputEventPool; 4077 if (q != null) { 4078 mQueuedInputEventPoolSize -= 1; 4079 mQueuedInputEventPool = q.mNext; 4080 q.mNext = null; 4081 } else { 4082 q = new QueuedInputEvent(); 4083 } 4084 4085 q.mEvent = event; 4086 q.mReceiver = receiver; 4087 q.mFlags = flags; 4088 return q; 4089 } 4090 4091 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4092 q.mEvent = null; 4093 q.mReceiver = null; 4094 4095 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4096 mQueuedInputEventPoolSize += 1; 4097 q.mNext = mQueuedInputEventPool; 4098 mQueuedInputEventPool = q; 4099 } 4100 } 4101 4102 void enqueueInputEvent(InputEvent event) { 4103 enqueueInputEvent(event, null, 0, false); 4104 } 4105 4106 void enqueueInputEvent(InputEvent event, 4107 InputEventReceiver receiver, int flags, boolean processImmediately) { 4108 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4109 4110 // Always enqueue the input event in order, regardless of its time stamp. 4111 // We do this because the application or the IME may inject key events 4112 // in response to touch events and we want to ensure that the injected keys 4113 // are processed in the order they were received and we cannot trust that 4114 // the time stamp of injected events are monotonic. 4115 QueuedInputEvent last = mFirstPendingInputEvent; 4116 if (last == null) { 4117 mFirstPendingInputEvent = q; 4118 } else { 4119 while (last.mNext != null) { 4120 last = last.mNext; 4121 } 4122 last.mNext = q; 4123 } 4124 4125 if (processImmediately) { 4126 doProcessInputEvents(); 4127 } else { 4128 scheduleProcessInputEvents(); 4129 } 4130 } 4131 4132 private void scheduleProcessInputEvents() { 4133 if (!mProcessInputEventsScheduled) { 4134 mProcessInputEventsScheduled = true; 4135 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4136 msg.setAsynchronous(true); 4137 mHandler.sendMessage(msg); 4138 } 4139 } 4140 4141 void doProcessInputEvents() { 4142 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4143 QueuedInputEvent q = mFirstPendingInputEvent; 4144 mFirstPendingInputEvent = q.mNext; 4145 q.mNext = null; 4146 mCurrentInputEvent = q; 4147 deliverInputEvent(q); 4148 } 4149 4150 // We are done processing all input events that we can process right now 4151 // so we can clear the pending flag immediately. 4152 if (mProcessInputEventsScheduled) { 4153 mProcessInputEventsScheduled = false; 4154 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4155 } 4156 } 4157 4158 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4159 if (q != mCurrentInputEvent) { 4160 throw new IllegalStateException("finished input event out of order"); 4161 } 4162 4163 if (q.mReceiver != null) { 4164 q.mReceiver.finishInputEvent(q.mEvent, handled); 4165 } else { 4166 q.mEvent.recycleIfNeededAfterDispatch(); 4167 } 4168 4169 recycleQueuedInputEvent(q); 4170 4171 mCurrentInputEvent = null; 4172 if (mFirstPendingInputEvent != null) { 4173 scheduleProcessInputEvents(); 4174 } 4175 } 4176 4177 void scheduleConsumeBatchedInput() { 4178 if (!mConsumeBatchedInputScheduled) { 4179 mConsumeBatchedInputScheduled = true; 4180 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4181 mConsumedBatchedInputRunnable, null); 4182 } 4183 } 4184 4185 void unscheduleConsumeBatchedInput() { 4186 if (mConsumeBatchedInputScheduled) { 4187 mConsumeBatchedInputScheduled = false; 4188 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4189 mConsumedBatchedInputRunnable, null); 4190 } 4191 } 4192 4193 void doConsumeBatchedInput(long frameTimeNanos) { 4194 if (mConsumeBatchedInputScheduled) { 4195 mConsumeBatchedInputScheduled = false; 4196 if (mInputEventReceiver != null) { 4197 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4198 } 4199 doProcessInputEvents(); 4200 } 4201 } 4202 4203 final class TraversalRunnable implements Runnable { 4204 @Override 4205 public void run() { 4206 doTraversal(); 4207 } 4208 } 4209 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4210 4211 final class WindowInputEventReceiver extends InputEventReceiver { 4212 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4213 super(inputChannel, looper); 4214 } 4215 4216 @Override 4217 public void onInputEvent(InputEvent event) { 4218 enqueueInputEvent(event, this, 0, true); 4219 } 4220 4221 @Override 4222 public void onBatchedInputEventPending() { 4223 scheduleConsumeBatchedInput(); 4224 } 4225 4226 @Override 4227 public void dispose() { 4228 unscheduleConsumeBatchedInput(); 4229 super.dispose(); 4230 } 4231 } 4232 WindowInputEventReceiver mInputEventReceiver; 4233 4234 final class ConsumeBatchedInputRunnable implements Runnable { 4235 @Override 4236 public void run() { 4237 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4238 } 4239 } 4240 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4241 new ConsumeBatchedInputRunnable(); 4242 boolean mConsumeBatchedInputScheduled; 4243 4244 final class InvalidateOnAnimationRunnable implements Runnable { 4245 private boolean mPosted; 4246 private ArrayList<View> mViews = new ArrayList<View>(); 4247 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4248 new ArrayList<AttachInfo.InvalidateInfo>(); 4249 private View[] mTempViews; 4250 private AttachInfo.InvalidateInfo[] mTempViewRects; 4251 4252 public void addView(View view) { 4253 synchronized (this) { 4254 mViews.add(view); 4255 postIfNeededLocked(); 4256 } 4257 } 4258 4259 public void addViewRect(AttachInfo.InvalidateInfo info) { 4260 synchronized (this) { 4261 mViewRects.add(info); 4262 postIfNeededLocked(); 4263 } 4264 } 4265 4266 public void removeView(View view) { 4267 synchronized (this) { 4268 mViews.remove(view); 4269 4270 for (int i = mViewRects.size(); i-- > 0; ) { 4271 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4272 if (info.target == view) { 4273 mViewRects.remove(i); 4274 info.release(); 4275 } 4276 } 4277 4278 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4279 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4280 mPosted = false; 4281 } 4282 } 4283 } 4284 4285 @Override 4286 public void run() { 4287 final int viewCount; 4288 final int viewRectCount; 4289 synchronized (this) { 4290 mPosted = false; 4291 4292 viewCount = mViews.size(); 4293 if (viewCount != 0) { 4294 mTempViews = mViews.toArray(mTempViews != null 4295 ? mTempViews : new View[viewCount]); 4296 mViews.clear(); 4297 } 4298 4299 viewRectCount = mViewRects.size(); 4300 if (viewRectCount != 0) { 4301 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4302 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4303 mViewRects.clear(); 4304 } 4305 } 4306 4307 for (int i = 0; i < viewCount; i++) { 4308 mTempViews[i].invalidate(); 4309 mTempViews[i] = null; 4310 } 4311 4312 for (int i = 0; i < viewRectCount; i++) { 4313 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4314 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4315 info.release(); 4316 } 4317 } 4318 4319 private void postIfNeededLocked() { 4320 if (!mPosted) { 4321 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4322 mPosted = true; 4323 } 4324 } 4325 } 4326 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4327 new InvalidateOnAnimationRunnable(); 4328 4329 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4330 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4331 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4332 } 4333 4334 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4335 long delayMilliseconds) { 4336 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4337 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4338 } 4339 4340 public void dispatchInvalidateOnAnimation(View view) { 4341 mInvalidateOnAnimationRunnable.addView(view); 4342 } 4343 4344 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4345 mInvalidateOnAnimationRunnable.addViewRect(info); 4346 } 4347 4348 public void enqueueDisplayList(DisplayList displayList) { 4349 mDisplayLists.add(displayList); 4350 4351 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4352 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4353 mHandler.sendMessage(msg); 4354 } 4355 4356 public void dequeueDisplayList(DisplayList displayList) { 4357 if (mDisplayLists.remove(displayList)) { 4358 displayList.invalidate(); 4359 if (mDisplayLists.size() == 0) { 4360 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4361 } 4362 } 4363 } 4364 4365 public void cancelInvalidate(View view) { 4366 mHandler.removeMessages(MSG_INVALIDATE, view); 4367 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4368 // them to the pool 4369 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4370 mInvalidateOnAnimationRunnable.removeView(view); 4371 } 4372 4373 public void dispatchKey(KeyEvent event) { 4374 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4375 msg.setAsynchronous(true); 4376 mHandler.sendMessage(msg); 4377 } 4378 4379 public void dispatchKeyFromIme(KeyEvent event) { 4380 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4381 msg.setAsynchronous(true); 4382 mHandler.sendMessage(msg); 4383 } 4384 4385 public void dispatchUnhandledKey(KeyEvent event) { 4386 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4387 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4388 final int keyCode = event.getKeyCode(); 4389 final int metaState = event.getMetaState(); 4390 4391 // Check for fallback actions specified by the key character map. 4392 KeyCharacterMap.FallbackAction fallbackAction = 4393 kcm.getFallbackAction(keyCode, metaState); 4394 if (fallbackAction != null) { 4395 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4396 KeyEvent fallbackEvent = KeyEvent.obtain( 4397 event.getDownTime(), event.getEventTime(), 4398 event.getAction(), fallbackAction.keyCode, 4399 event.getRepeatCount(), fallbackAction.metaState, 4400 event.getDeviceId(), event.getScanCode(), 4401 flags, event.getSource(), null); 4402 fallbackAction.recycle(); 4403 4404 dispatchKey(fallbackEvent); 4405 } 4406 } 4407 } 4408 4409 public void dispatchAppVisibility(boolean visible) { 4410 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4411 msg.arg1 = visible ? 1 : 0; 4412 mHandler.sendMessage(msg); 4413 } 4414 4415 public void dispatchScreenStateChange(boolean on) { 4416 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4417 msg.arg1 = on ? 1 : 0; 4418 mHandler.sendMessage(msg); 4419 } 4420 4421 public void dispatchGetNewSurface() { 4422 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4423 mHandler.sendMessage(msg); 4424 } 4425 4426 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4427 Message msg = Message.obtain(); 4428 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4429 msg.arg1 = hasFocus ? 1 : 0; 4430 msg.arg2 = inTouchMode ? 1 : 0; 4431 mHandler.sendMessage(msg); 4432 } 4433 4434 public void dispatchCloseSystemDialogs(String reason) { 4435 Message msg = Message.obtain(); 4436 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4437 msg.obj = reason; 4438 mHandler.sendMessage(msg); 4439 } 4440 4441 public void dispatchDragEvent(DragEvent event) { 4442 final int what; 4443 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4444 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4445 mHandler.removeMessages(what); 4446 } else { 4447 what = MSG_DISPATCH_DRAG_EVENT; 4448 } 4449 Message msg = mHandler.obtainMessage(what, event); 4450 mHandler.sendMessage(msg); 4451 } 4452 4453 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4454 int localValue, int localChanges) { 4455 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4456 args.seq = seq; 4457 args.globalVisibility = globalVisibility; 4458 args.localValue = localValue; 4459 args.localChanges = localChanges; 4460 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4461 } 4462 4463 public void dispatchDoneAnimating() { 4464 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4465 } 4466 4467 public void dispatchCheckFocus() { 4468 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4469 // This will result in a call to checkFocus() below. 4470 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4471 } 4472 } 4473 4474 /** 4475 * Post a callback to send a 4476 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4477 * This event is send at most once every 4478 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4479 */ 4480 private void postSendWindowContentChangedCallback(View source) { 4481 if (mSendWindowContentChangedAccessibilityEvent == null) { 4482 mSendWindowContentChangedAccessibilityEvent = 4483 new SendWindowContentChangedAccessibilityEvent(); 4484 } 4485 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4486 if (oldSource == null) { 4487 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4488 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4489 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4490 } else { 4491 mSendWindowContentChangedAccessibilityEvent.mSource = 4492 getCommonPredecessor(oldSource, source); 4493 } 4494 } 4495 4496 /** 4497 * Remove a posted callback to send a 4498 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4499 */ 4500 private void removeSendWindowContentChangedCallback() { 4501 if (mSendWindowContentChangedAccessibilityEvent != null) { 4502 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4503 } 4504 } 4505 4506 public boolean showContextMenuForChild(View originalView) { 4507 return false; 4508 } 4509 4510 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4511 return null; 4512 } 4513 4514 public void createContextMenu(ContextMenu menu) { 4515 } 4516 4517 public void childDrawableStateChanged(View child) { 4518 } 4519 4520 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4521 if (mView == null) { 4522 return false; 4523 } 4524 // Watch for accessibility focus change events from virtual nodes 4525 // to keep track of accessibility focus being on a virtual node. 4526 final int eventType = event.getEventType(); 4527 switch (eventType) { 4528 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4529 final long sourceId = event.getSourceNodeId(); 4530 // If the event is not from a virtual node we are not interested. 4531 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4532 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4533 break; 4534 } 4535 final int realViewId = AccessibilityNodeInfo.getAccessibilityViewId(sourceId); 4536 View focusHost = mView.findViewByAccessibilityId(realViewId); 4537 setAccessibilityFocusedHost(focusHost); 4538 } break; 4539 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4540 final long sourceId = event.getSourceNodeId(); 4541 // If the event is not from a virtual node we are not interested. 4542 final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(sourceId); 4543 if (virtualViewId == AccessibilityNodeInfo.UNDEFINED) { 4544 break; 4545 } 4546 setAccessibilityFocusedHost(null); 4547 } break; 4548 } 4549 mAccessibilityManager.sendAccessibilityEvent(event); 4550 return true; 4551 } 4552 4553 @Override 4554 public void childAccessibilityStateChanged(View child) { 4555 postSendWindowContentChangedCallback(child); 4556 } 4557 4558 private View getCommonPredecessor(View first, View second) { 4559 if (mAttachInfo != null) { 4560 if (mTempHashSet == null) { 4561 mTempHashSet = new HashSet<View>(); 4562 } 4563 HashSet<View> seen = mTempHashSet; 4564 seen.clear(); 4565 View firstCurrent = first; 4566 while (firstCurrent != null) { 4567 seen.add(firstCurrent); 4568 ViewParent firstCurrentParent = firstCurrent.mParent; 4569 if (firstCurrentParent instanceof View) { 4570 firstCurrent = (View) firstCurrentParent; 4571 } else { 4572 firstCurrent = null; 4573 } 4574 } 4575 View secondCurrent = second; 4576 while (secondCurrent != null) { 4577 if (seen.contains(secondCurrent)) { 4578 seen.clear(); 4579 return secondCurrent; 4580 } 4581 ViewParent secondCurrentParent = secondCurrent.mParent; 4582 if (secondCurrentParent instanceof View) { 4583 secondCurrent = (View) secondCurrentParent; 4584 } else { 4585 secondCurrent = null; 4586 } 4587 } 4588 seen.clear(); 4589 } 4590 return null; 4591 } 4592 4593 void checkThread() { 4594 if (mThread != Thread.currentThread()) { 4595 throw new CalledFromWrongThreadException( 4596 "Only the original thread that created a view hierarchy can touch its views."); 4597 } 4598 } 4599 4600 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4601 // ViewAncestor never intercepts touch event, so this can be a no-op 4602 } 4603 4604 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4605 boolean immediate) { 4606 return scrollToRectOrFocus(rectangle, immediate); 4607 } 4608 4609 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4610 // Do nothing. 4611 } 4612 4613 class TakenSurfaceHolder extends BaseSurfaceHolder { 4614 @Override 4615 public boolean onAllowLockCanvas() { 4616 return mDrawingAllowed; 4617 } 4618 4619 @Override 4620 public void onRelayoutContainer() { 4621 // Not currently interesting -- from changing between fixed and layout size. 4622 } 4623 4624 public void setFormat(int format) { 4625 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4626 } 4627 4628 public void setType(int type) { 4629 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4630 } 4631 4632 @Override 4633 public void onUpdateSurface() { 4634 // We take care of format and type changes on our own. 4635 throw new IllegalStateException("Shouldn't be here"); 4636 } 4637 4638 public boolean isCreating() { 4639 return mIsCreating; 4640 } 4641 4642 @Override 4643 public void setFixedSize(int width, int height) { 4644 throw new UnsupportedOperationException( 4645 "Currently only support sizing from layout"); 4646 } 4647 4648 public void setKeepScreenOn(boolean screenOn) { 4649 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4650 } 4651 } 4652 4653 static class InputMethodCallback extends IInputMethodCallback.Stub { 4654 private WeakReference<ViewRootImpl> mViewAncestor; 4655 4656 public InputMethodCallback(ViewRootImpl viewAncestor) { 4657 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4658 } 4659 4660 public void finishedEvent(int seq, boolean handled) { 4661 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4662 if (viewAncestor != null) { 4663 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4664 } 4665 } 4666 4667 public void sessionCreated(IInputMethodSession session) { 4668 // Stub -- not for use in the client. 4669 } 4670 } 4671 4672 static class W extends IWindow.Stub { 4673 private final WeakReference<ViewRootImpl> mViewAncestor; 4674 4675 W(ViewRootImpl viewAncestor) { 4676 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4677 } 4678 4679 public void resized(int w, int h, Rect contentInsets, 4680 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4681 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4682 if (viewAncestor != null) { 4683 viewAncestor.dispatchResized(w, h, contentInsets, 4684 visibleInsets, reportDraw, newConfig); 4685 } 4686 } 4687 4688 public void dispatchAppVisibility(boolean visible) { 4689 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4690 if (viewAncestor != null) { 4691 viewAncestor.dispatchAppVisibility(visible); 4692 } 4693 } 4694 4695 public void dispatchScreenState(boolean on) { 4696 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4697 if (viewAncestor != null) { 4698 viewAncestor.dispatchScreenStateChange(on); 4699 } 4700 } 4701 4702 public void dispatchGetNewSurface() { 4703 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4704 if (viewAncestor != null) { 4705 viewAncestor.dispatchGetNewSurface(); 4706 } 4707 } 4708 4709 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4710 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4711 if (viewAncestor != null) { 4712 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4713 } 4714 } 4715 4716 private static int checkCallingPermission(String permission) { 4717 try { 4718 return ActivityManagerNative.getDefault().checkPermission( 4719 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4720 } catch (RemoteException e) { 4721 return PackageManager.PERMISSION_DENIED; 4722 } 4723 } 4724 4725 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4726 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4727 if (viewAncestor != null) { 4728 final View view = viewAncestor.mView; 4729 if (view != null) { 4730 if (checkCallingPermission(Manifest.permission.DUMP) != 4731 PackageManager.PERMISSION_GRANTED) { 4732 throw new SecurityException("Insufficient permissions to invoke" 4733 + " executeCommand() from pid=" + Binder.getCallingPid() 4734 + ", uid=" + Binder.getCallingUid()); 4735 } 4736 4737 OutputStream clientStream = null; 4738 try { 4739 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4740 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4741 } catch (IOException e) { 4742 e.printStackTrace(); 4743 } finally { 4744 if (clientStream != null) { 4745 try { 4746 clientStream.close(); 4747 } catch (IOException e) { 4748 e.printStackTrace(); 4749 } 4750 } 4751 } 4752 } 4753 } 4754 } 4755 4756 public void closeSystemDialogs(String reason) { 4757 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4758 if (viewAncestor != null) { 4759 viewAncestor.dispatchCloseSystemDialogs(reason); 4760 } 4761 } 4762 4763 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4764 boolean sync) { 4765 if (sync) { 4766 try { 4767 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4768 } catch (RemoteException e) { 4769 } 4770 } 4771 } 4772 4773 public void dispatchWallpaperCommand(String action, int x, int y, 4774 int z, Bundle extras, boolean sync) { 4775 if (sync) { 4776 try { 4777 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4778 } catch (RemoteException e) { 4779 } 4780 } 4781 } 4782 4783 /* Drag/drop */ 4784 public void dispatchDragEvent(DragEvent event) { 4785 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4786 if (viewAncestor != null) { 4787 viewAncestor.dispatchDragEvent(event); 4788 } 4789 } 4790 4791 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4792 int localValue, int localChanges) { 4793 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4794 if (viewAncestor != null) { 4795 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4796 localValue, localChanges); 4797 } 4798 } 4799 4800 public void doneAnimating() { 4801 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4802 if (viewAncestor != null) { 4803 viewAncestor.dispatchDoneAnimating(); 4804 } 4805 } 4806 } 4807 4808 /** 4809 * Maintains state information for a single trackball axis, generating 4810 * discrete (DPAD) movements based on raw trackball motion. 4811 */ 4812 static final class TrackballAxis { 4813 /** 4814 * The maximum amount of acceleration we will apply. 4815 */ 4816 static final float MAX_ACCELERATION = 20; 4817 4818 /** 4819 * The maximum amount of time (in milliseconds) between events in order 4820 * for us to consider the user to be doing fast trackball movements, 4821 * and thus apply an acceleration. 4822 */ 4823 static final long FAST_MOVE_TIME = 150; 4824 4825 /** 4826 * Scaling factor to the time (in milliseconds) between events to how 4827 * much to multiple/divide the current acceleration. When movement 4828 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4829 * FAST_MOVE_TIME it divides it. 4830 */ 4831 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4832 4833 float position; 4834 float absPosition; 4835 float acceleration = 1; 4836 long lastMoveTime = 0; 4837 int step; 4838 int dir; 4839 int nonAccelMovement; 4840 4841 void reset(int _step) { 4842 position = 0; 4843 acceleration = 1; 4844 lastMoveTime = 0; 4845 step = _step; 4846 dir = 0; 4847 } 4848 4849 /** 4850 * Add trackball movement into the state. If the direction of movement 4851 * has been reversed, the state is reset before adding the 4852 * movement (so that you don't have to compensate for any previously 4853 * collected movement before see the result of the movement in the 4854 * new direction). 4855 * 4856 * @return Returns the absolute value of the amount of movement 4857 * collected so far. 4858 */ 4859 float collect(float off, long time, String axis) { 4860 long normTime; 4861 if (off > 0) { 4862 normTime = (long)(off * FAST_MOVE_TIME); 4863 if (dir < 0) { 4864 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4865 position = 0; 4866 step = 0; 4867 acceleration = 1; 4868 lastMoveTime = 0; 4869 } 4870 dir = 1; 4871 } else if (off < 0) { 4872 normTime = (long)((-off) * FAST_MOVE_TIME); 4873 if (dir > 0) { 4874 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4875 position = 0; 4876 step = 0; 4877 acceleration = 1; 4878 lastMoveTime = 0; 4879 } 4880 dir = -1; 4881 } else { 4882 normTime = 0; 4883 } 4884 4885 // The number of milliseconds between each movement that is 4886 // considered "normal" and will not result in any acceleration 4887 // or deceleration, scaled by the offset we have here. 4888 if (normTime > 0) { 4889 long delta = time - lastMoveTime; 4890 lastMoveTime = time; 4891 float acc = acceleration; 4892 if (delta < normTime) { 4893 // The user is scrolling rapidly, so increase acceleration. 4894 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4895 if (scale > 1) acc *= scale; 4896 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4897 + off + " normTime=" + normTime + " delta=" + delta 4898 + " scale=" + scale + " acc=" + acc); 4899 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4900 } else { 4901 // The user is scrolling slowly, so decrease acceleration. 4902 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4903 if (scale > 1) acc /= scale; 4904 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4905 + off + " normTime=" + normTime + " delta=" + delta 4906 + " scale=" + scale + " acc=" + acc); 4907 acceleration = acc > 1 ? acc : 1; 4908 } 4909 } 4910 position += off; 4911 return (absPosition = Math.abs(position)); 4912 } 4913 4914 /** 4915 * Generate the number of discrete movement events appropriate for 4916 * the currently collected trackball movement. 4917 * 4918 * @param precision The minimum movement required to generate the 4919 * first discrete movement. 4920 * 4921 * @return Returns the number of discrete movements, either positive 4922 * or negative, or 0 if there is not enough trackball movement yet 4923 * for a discrete movement. 4924 */ 4925 int generate(float precision) { 4926 int movement = 0; 4927 nonAccelMovement = 0; 4928 do { 4929 final int dir = position >= 0 ? 1 : -1; 4930 switch (step) { 4931 // If we are going to execute the first step, then we want 4932 // to do this as soon as possible instead of waiting for 4933 // a full movement, in order to make things look responsive. 4934 case 0: 4935 if (absPosition < precision) { 4936 return movement; 4937 } 4938 movement += dir; 4939 nonAccelMovement += dir; 4940 step = 1; 4941 break; 4942 // If we have generated the first movement, then we need 4943 // to wait for the second complete trackball motion before 4944 // generating the second discrete movement. 4945 case 1: 4946 if (absPosition < 2) { 4947 return movement; 4948 } 4949 movement += dir; 4950 nonAccelMovement += dir; 4951 position += dir > 0 ? -2 : 2; 4952 absPosition = Math.abs(position); 4953 step = 2; 4954 break; 4955 // After the first two, we generate discrete movements 4956 // consistently with the trackball, applying an acceleration 4957 // if the trackball is moving quickly. This is a simple 4958 // acceleration on top of what we already compute based 4959 // on how quickly the wheel is being turned, to apply 4960 // a longer increasing acceleration to continuous movement 4961 // in one direction. 4962 default: 4963 if (absPosition < 1) { 4964 return movement; 4965 } 4966 movement += dir; 4967 position += dir >= 0 ? -1 : 1; 4968 absPosition = Math.abs(position); 4969 float acc = acceleration; 4970 acc *= 1.1f; 4971 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4972 break; 4973 } 4974 } while (true); 4975 } 4976 } 4977 4978 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4979 public CalledFromWrongThreadException(String msg) { 4980 super(msg); 4981 } 4982 } 4983 4984 private SurfaceHolder mHolder = new SurfaceHolder() { 4985 // we only need a SurfaceHolder for opengl. it would be nice 4986 // to implement everything else though, especially the callback 4987 // support (opengl doesn't make use of it right now, but eventually 4988 // will). 4989 public Surface getSurface() { 4990 return mSurface; 4991 } 4992 4993 public boolean isCreating() { 4994 return false; 4995 } 4996 4997 public void addCallback(Callback callback) { 4998 } 4999 5000 public void removeCallback(Callback callback) { 5001 } 5002 5003 public void setFixedSize(int width, int height) { 5004 } 5005 5006 public void setSizeFromLayout() { 5007 } 5008 5009 public void setFormat(int format) { 5010 } 5011 5012 public void setType(int type) { 5013 } 5014 5015 public void setKeepScreenOn(boolean screenOn) { 5016 } 5017 5018 public Canvas lockCanvas() { 5019 return null; 5020 } 5021 5022 public Canvas lockCanvas(Rect dirty) { 5023 return null; 5024 } 5025 5026 public void unlockCanvasAndPost(Canvas canvas) { 5027 } 5028 public Rect getSurfaceFrame() { 5029 return null; 5030 } 5031 }; 5032 5033 static RunQueue getRunQueue() { 5034 RunQueue rq = sRunQueues.get(); 5035 if (rq != null) { 5036 return rq; 5037 } 5038 rq = new RunQueue(); 5039 sRunQueues.set(rq); 5040 return rq; 5041 } 5042 5043 /** 5044 * The run queue is used to enqueue pending work from Views when no Handler is 5045 * attached. The work is executed during the next call to performTraversals on 5046 * the thread. 5047 * @hide 5048 */ 5049 static final class RunQueue { 5050 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5051 5052 void post(Runnable action) { 5053 postDelayed(action, 0); 5054 } 5055 5056 void postDelayed(Runnable action, long delayMillis) { 5057 HandlerAction handlerAction = new HandlerAction(); 5058 handlerAction.action = action; 5059 handlerAction.delay = delayMillis; 5060 5061 synchronized (mActions) { 5062 mActions.add(handlerAction); 5063 } 5064 } 5065 5066 void removeCallbacks(Runnable action) { 5067 final HandlerAction handlerAction = new HandlerAction(); 5068 handlerAction.action = action; 5069 5070 synchronized (mActions) { 5071 final ArrayList<HandlerAction> actions = mActions; 5072 5073 while (actions.remove(handlerAction)) { 5074 // Keep going 5075 } 5076 } 5077 } 5078 5079 void executeActions(Handler handler) { 5080 synchronized (mActions) { 5081 final ArrayList<HandlerAction> actions = mActions; 5082 final int count = actions.size(); 5083 5084 for (int i = 0; i < count; i++) { 5085 final HandlerAction handlerAction = actions.get(i); 5086 handler.postDelayed(handlerAction.action, handlerAction.delay); 5087 } 5088 5089 actions.clear(); 5090 } 5091 } 5092 5093 private static class HandlerAction { 5094 Runnable action; 5095 long delay; 5096 5097 @Override 5098 public boolean equals(Object o) { 5099 if (this == o) return true; 5100 if (o == null || getClass() != o.getClass()) return false; 5101 5102 HandlerAction that = (HandlerAction) o; 5103 return !(action != null ? !action.equals(that.action) : that.action != null); 5104 5105 } 5106 5107 @Override 5108 public int hashCode() { 5109 int result = action != null ? action.hashCode() : 0; 5110 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5111 return result; 5112 } 5113 } 5114 } 5115 5116 /** 5117 * Class for managing the accessibility interaction connection 5118 * based on the global accessibility state. 5119 */ 5120 final class AccessibilityInteractionConnectionManager 5121 implements AccessibilityStateChangeListener { 5122 public void onAccessibilityStateChanged(boolean enabled) { 5123 if (enabled) { 5124 ensureConnection(); 5125 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5126 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5127 View focusedView = mView.findFocus(); 5128 if (focusedView != null && focusedView != mView) { 5129 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5130 } 5131 } 5132 } else { 5133 ensureNoConnection(); 5134 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5135 } 5136 } 5137 5138 public void ensureConnection() { 5139 if (mAttachInfo != null) { 5140 final boolean registered = 5141 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5142 if (!registered) { 5143 mAttachInfo.mAccessibilityWindowId = 5144 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5145 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5146 } 5147 } 5148 } 5149 5150 public void ensureNoConnection() { 5151 final boolean registered = 5152 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5153 if (registered) { 5154 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5155 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5156 } 5157 } 5158 } 5159 5160 /** 5161 * This class is an interface this ViewAncestor provides to the 5162 * AccessibilityManagerService to the latter can interact with 5163 * the view hierarchy in this ViewAncestor. 5164 */ 5165 static final class AccessibilityInteractionConnection 5166 extends IAccessibilityInteractionConnection.Stub { 5167 private final WeakReference<ViewRootImpl> mViewRootImpl; 5168 5169 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5170 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5171 } 5172 5173 @Override 5174 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5175 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5176 int flags, int interrogatingPid, long interrogatingTid) { 5177 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5178 if (viewRootImpl != null && viewRootImpl.mView != null) { 5179 viewRootImpl.getAccessibilityInteractionController() 5180 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5181 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5182 } else { 5183 // We cannot make the call and notify the caller so it does not wait. 5184 try { 5185 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5186 } catch (RemoteException re) { 5187 /* best effort - ignore */ 5188 } 5189 } 5190 } 5191 5192 @Override 5193 public void performAccessibilityAction(long accessibilityNodeId, int action, 5194 Bundle arguments, int interactionId, 5195 IAccessibilityInteractionConnectionCallback callback, int flags, 5196 int interogatingPid, long interrogatingTid) { 5197 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5198 if (viewRootImpl != null && viewRootImpl.mView != null) { 5199 viewRootImpl.getAccessibilityInteractionController() 5200 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5201 interactionId, callback, flags, interogatingPid, interrogatingTid); 5202 } else { 5203 // We cannot make the call and notify the caller so it does not wait. 5204 try { 5205 callback.setPerformAccessibilityActionResult(false, interactionId); 5206 } catch (RemoteException re) { 5207 /* best effort - ignore */ 5208 } 5209 } 5210 } 5211 5212 @Override 5213 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5214 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5215 int flags, int interrogatingPid, long interrogatingTid) { 5216 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5217 if (viewRootImpl != null && viewRootImpl.mView != null) { 5218 viewRootImpl.getAccessibilityInteractionController() 5219 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5220 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5221 } else { 5222 // We cannot make the call and notify the caller so it does not wait. 5223 try { 5224 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5225 } catch (RemoteException re) { 5226 /* best effort - ignore */ 5227 } 5228 } 5229 } 5230 5231 @Override 5232 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5233 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5234 int flags, int interrogatingPid, long interrogatingTid) { 5235 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5236 if (viewRootImpl != null && viewRootImpl.mView != null) { 5237 viewRootImpl.getAccessibilityInteractionController() 5238 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5239 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5240 } else { 5241 // We cannot make the call and notify the caller so it does not wait. 5242 try { 5243 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5244 } catch (RemoteException re) { 5245 /* best effort - ignore */ 5246 } 5247 } 5248 } 5249 5250 @Override 5251 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5252 IAccessibilityInteractionConnectionCallback callback, int flags, 5253 int interrogatingPid, long interrogatingTid) { 5254 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5255 if (viewRootImpl != null && viewRootImpl.mView != null) { 5256 viewRootImpl.getAccessibilityInteractionController() 5257 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5258 callback, flags, interrogatingPid, interrogatingTid); 5259 } else { 5260 // We cannot make the call and notify the caller so it does not wait. 5261 try { 5262 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5263 } catch (RemoteException re) { 5264 /* best effort - ignore */ 5265 } 5266 } 5267 } 5268 5269 @Override 5270 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5271 IAccessibilityInteractionConnectionCallback callback, int flags, 5272 int interrogatingPid, long interrogatingTid) { 5273 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5274 if (viewRootImpl != null && viewRootImpl.mView != null) { 5275 viewRootImpl.getAccessibilityInteractionController() 5276 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5277 callback, flags, interrogatingPid, interrogatingTid); 5278 } else { 5279 // We cannot make the call and notify the caller so it does not wait. 5280 try { 5281 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5282 } catch (RemoteException re) { 5283 /* best effort - ignore */ 5284 } 5285 } 5286 } 5287 } 5288 5289 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5290 public View mSource; 5291 5292 public void run() { 5293 if (mSource != null) { 5294 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5295 mSource.resetAccessibilityStateChanged(); 5296 mSource = null; 5297 } 5298 } 5299 } 5300} 5301