ViewRootImpl.java revision 98365d7663cbd82979a5700faf0050220b01084d
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 int mLastJoystickXDirection; 148 int mLastJoystickYDirection; 149 int mLastJoystickXKeyCode; 150 int mLastJoystickYKeyCode; 151 152 final int[] mTmpLocation = new int[2]; 153 154 final TypedValue mTmpValue = new TypedValue(); 155 156 final InputMethodCallback mInputMethodCallback; 157 final Thread mThread; 158 159 final WindowLeaked mLocation; 160 161 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 162 163 final W mWindow; 164 165 final int mTargetSdkVersion; 166 167 int mSeq; 168 169 View mView; 170 View mFocusedView; 171 View mRealFocusedView; // this is not set to null in touch mode 172 View mOldFocusedView; 173 174 View mAccessibilityFocusedHost; 175 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 176 177 int mViewVisibility; 178 boolean mAppVisible = true; 179 int mOrigWindowType = -1; 180 181 // Set to true if the owner of this window is in the stopped state, 182 // so the window should no longer be active. 183 boolean mStopped = false; 184 185 boolean mLastInCompatMode = false; 186 187 SurfaceHolder.Callback2 mSurfaceHolderCallback; 188 BaseSurfaceHolder mSurfaceHolder; 189 boolean mIsCreating; 190 boolean mDrawingAllowed; 191 192 final Region mTransparentRegion; 193 final Region mPreviousTransparentRegion; 194 195 int mWidth; 196 int mHeight; 197 Rect mDirty; 198 final Rect mCurrentDirty = new Rect(); 199 final Rect mPreviousDirty = new Rect(); 200 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 int mTraversalBarrier; 216 boolean mWillDrawSoon; 217 boolean mFitSystemWindowsRequested; 218 boolean mLayoutRequested; 219 boolean mFirst; 220 boolean mReportNextDraw; 221 boolean mFullRedrawNeeded; 222 boolean mNewSurfaceNeeded; 223 boolean mHasHadWindowFocus; 224 boolean mLastWasImTarget; 225 boolean mWindowsAnimating; 226 boolean mIsDrawing; 227 int mLastSystemUiVisibility; 228 int mClientWindowLayoutFlags; 229 230 // Pool of queued input events. 231 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 232 private QueuedInputEvent mQueuedInputEventPool; 233 private int mQueuedInputEventPoolSize; 234 235 // Input event queue. 236 QueuedInputEvent mFirstPendingInputEvent; 237 QueuedInputEvent mCurrentInputEvent; 238 boolean mProcessInputEventsScheduled; 239 240 boolean mWindowAttributesChanged = false; 241 int mWindowAttributesChangesFlag = 0; 242 243 // These can be accessed by any thread, must be protected with a lock. 244 // Surface can never be reassigned or cleared (use Surface.clear()). 245 private final Surface mSurface = new Surface(); 246 247 boolean mAdded; 248 boolean mAddedTouchMode; 249 250 final CompatibilityInfoHolder mCompatibilityInfo; 251 252 // These are accessed by multiple threads. 253 final Rect mWinFrame; // frame given by window manager. 254 255 final Rect mPendingVisibleInsets = new Rect(); 256 final Rect mPendingContentInsets = new Rect(); 257 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 258 = new ViewTreeObserver.InternalInsetsInfo(); 259 260 final Rect mFitSystemWindowsInsets = new Rect(); 261 262 final Configuration mLastConfiguration = new Configuration(); 263 final Configuration mPendingConfiguration = new Configuration(); 264 265 boolean mScrollMayChange; 266 int mSoftInputMode; 267 View mLastScrolledFocus; 268 int mScrollY; 269 int mCurScrollY; 270 Scroller mScroller; 271 HardwareLayer mResizeBuffer; 272 long mResizeBufferStartTime; 273 int mResizeBufferDuration; 274 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 275 private ArrayList<LayoutTransition> mPendingTransitions; 276 277 final ViewConfiguration mViewConfiguration; 278 279 /* Drag/drop */ 280 ClipDescription mDragDescription; 281 View mCurrentDragView; 282 volatile Object mLocalDragState; 283 final PointF mDragPoint = new PointF(); 284 final PointF mLastTouchPoint = new PointF(); 285 286 private boolean mProfileRendering; 287 private Thread mRenderProfiler; 288 private volatile boolean mRenderProfilingEnabled; 289 290 // Variables to track frames per second, enabled via DEBUG_FPS flag 291 private long mFpsStartTime = -1; 292 private long mFpsPrevTime = -1; 293 private int mFpsNumFrames; 294 295 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 296 297 /** 298 * see {@link #playSoundEffect(int)} 299 */ 300 AudioManager mAudioManager; 301 302 final AccessibilityManager mAccessibilityManager; 303 304 AccessibilityInteractionController mAccessibilityInteractionController; 305 306 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 307 308 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 309 310 HashSet<View> mTempHashSet; 311 312 private final int mDensity; 313 private final int mNoncompatDensity; 314 315 /** 316 * Consistency verifier for debugging purposes. 317 */ 318 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 319 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 320 new InputEventConsistencyVerifier(this, 0) : null; 321 322 static final class SystemUiVisibilityInfo { 323 int seq; 324 int globalVisibility; 325 int localValue; 326 int localChanges; 327 } 328 329 public ViewRootImpl(Context context, Display display) { 330 super(); 331 332 if (MEASURE_LATENCY) { 333 if (lt == null) { 334 lt = new LatencyTimer(100, 1000); 335 } 336 } 337 338 // Initialize the statics when this class is first instantiated. This is 339 // done here instead of in the static block because Zygote does not 340 // allow the spawning of threads. 341 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 342 mDisplay = display; 343 344 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 345 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 346 347 mThread = Thread.currentThread(); 348 mLocation = new WindowLeaked(null); 349 mLocation.fillInStackTrace(); 350 mWidth = -1; 351 mHeight = -1; 352 mDirty = new Rect(); 353 mTempRect = new Rect(); 354 mVisRect = new Rect(); 355 mWinFrame = new Rect(); 356 mWindow = new W(this); 357 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 358 mInputMethodCallback = new InputMethodCallback(this); 359 mViewVisibility = View.GONE; 360 mTransparentRegion = new Region(); 361 mPreviousTransparentRegion = new Region(); 362 mFirst = true; // true for the first time the view is added 363 mAdded = false; 364 mAccessibilityManager = AccessibilityManager.getInstance(context); 365 mAccessibilityInteractionConnectionManager = 366 new AccessibilityInteractionConnectionManager(); 367 mAccessibilityManager.addAccessibilityStateChangeListener( 368 mAccessibilityInteractionConnectionManager); 369 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 370 mViewConfiguration = ViewConfiguration.get(context); 371 mDensity = context.getResources().getDisplayMetrics().densityDpi; 372 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 373 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 374 mProfileRendering = Boolean.parseBoolean( 375 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 376 mChoreographer = Choreographer.getInstance(); 377 378 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 379 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 380 loadSystemProperties(); 381 } 382 383 /** 384 * @return True if the application requests the use of a separate render thread, 385 * false otherwise 386 */ 387 private static boolean isRenderThreadRequested(Context context) { 388 if (USE_RENDER_THREAD) { 389 synchronized (sRenderThreadQueryLock) { 390 if (!sRenderThreadQueried) { 391 final PackageManager packageManager = context.getPackageManager(); 392 final String packageName = context.getApplicationInfo().packageName; 393 try { 394 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 395 PackageManager.GET_META_DATA); 396 if (applicationInfo.metaData != null) { 397 sUseRenderThread = applicationInfo.metaData.getBoolean( 398 "android.graphics.renderThread", false); 399 } 400 } catch (PackageManager.NameNotFoundException e) { 401 } finally { 402 sRenderThreadQueried = true; 403 } 404 } 405 return sUseRenderThread; 406 } 407 } else { 408 return false; 409 } 410 } 411 412 public static void addFirstDrawHandler(Runnable callback) { 413 synchronized (sFirstDrawHandlers) { 414 if (!sFirstDrawComplete) { 415 sFirstDrawHandlers.add(callback); 416 } 417 } 418 } 419 420 public static void addConfigCallback(ComponentCallbacks callback) { 421 synchronized (sConfigCallbacks) { 422 sConfigCallbacks.add(callback); 423 } 424 } 425 426 // FIXME for perf testing only 427 private boolean mProfile = false; 428 429 /** 430 * Call this to profile the next traversal call. 431 * FIXME for perf testing only. Remove eventually 432 */ 433 public void profile() { 434 mProfile = true; 435 } 436 437 /** 438 * Indicates whether we are in touch mode. Calling this method triggers an IPC 439 * call and should be avoided whenever possible. 440 * 441 * @return True, if the device is in touch mode, false otherwise. 442 * 443 * @hide 444 */ 445 static boolean isInTouchMode() { 446 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 447 if (windowSession != null) { 448 try { 449 return windowSession.getInTouchMode(); 450 } catch (RemoteException e) { 451 } 452 } 453 return false; 454 } 455 456 /** 457 * We have one child 458 */ 459 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 460 synchronized (this) { 461 if (mView == null) { 462 mView = view; 463 mFallbackEventHandler.setView(view); 464 mWindowAttributes.copyFrom(attrs); 465 attrs = mWindowAttributes; 466 // Keep track of the actual window flags supplied by the client. 467 mClientWindowLayoutFlags = attrs.flags; 468 469 setAccessibilityFocus(null, null); 470 471 if (view instanceof RootViewSurfaceTaker) { 472 mSurfaceHolderCallback = 473 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 474 if (mSurfaceHolderCallback != null) { 475 mSurfaceHolder = new TakenSurfaceHolder(); 476 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 477 } 478 } 479 480 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 481 mTranslator = compatibilityInfo.getTranslator(); 482 483 // If the application owns the surface, don't enable hardware acceleration 484 if (mSurfaceHolder == null) { 485 enableHardwareAcceleration(mView.getContext(), attrs); 486 } 487 488 boolean restore = false; 489 if (mTranslator != null) { 490 mSurface.setCompatibilityTranslator(mTranslator); 491 restore = true; 492 attrs.backup(); 493 mTranslator.translateWindowLayout(attrs); 494 } 495 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 496 497 if (!compatibilityInfo.supportsScreen()) { 498 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 499 mLastInCompatMode = true; 500 } 501 502 mSoftInputMode = attrs.softInputMode; 503 mWindowAttributesChanged = true; 504 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 505 mAttachInfo.mRootView = view; 506 mAttachInfo.mScalingRequired = mTranslator != null; 507 mAttachInfo.mApplicationScale = 508 mTranslator == null ? 1.0f : mTranslator.applicationScale; 509 if (panelParentView != null) { 510 mAttachInfo.mPanelParentWindowToken 511 = panelParentView.getApplicationWindowToken(); 512 } 513 mAdded = true; 514 int res; /* = WindowManagerImpl.ADD_OKAY; */ 515 516 // Schedule the first layout -before- adding to the window 517 // manager, to make sure we do the relayout before receiving 518 // any other events from the system. 519 requestLayout(); 520 if ((mWindowAttributes.inputFeatures 521 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 522 mInputChannel = new InputChannel(); 523 } 524 try { 525 mOrigWindowType = mWindowAttributes.type; 526 mAttachInfo.mRecomputeGlobalAttributes = true; 527 collectViewAttributes(); 528 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 529 getHostVisibility(), mDisplay.getDisplayId(), 530 mAttachInfo.mContentInsets, mInputChannel); 531 } catch (RemoteException e) { 532 mAdded = false; 533 mView = null; 534 mAttachInfo.mRootView = null; 535 mInputChannel = null; 536 mFallbackEventHandler.setView(null); 537 unscheduleTraversals(); 538 setAccessibilityFocus(null, null); 539 throw new RuntimeException("Adding window failed", e); 540 } finally { 541 if (restore) { 542 attrs.restore(); 543 } 544 } 545 546 if (mTranslator != null) { 547 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 548 } 549 mPendingContentInsets.set(mAttachInfo.mContentInsets); 550 mPendingVisibleInsets.set(0, 0, 0, 0); 551 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 552 if (res < WindowManagerGlobal.ADD_OKAY) { 553 mView = null; 554 mAttachInfo.mRootView = null; 555 mAdded = false; 556 mFallbackEventHandler.setView(null); 557 unscheduleTraversals(); 558 setAccessibilityFocus(null, null); 559 switch (res) { 560 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 561 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 562 throw new WindowManager.BadTokenException( 563 "Unable to add window -- token " + attrs.token 564 + " is not valid; is your activity running?"); 565 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 566 throw new WindowManager.BadTokenException( 567 "Unable to add window -- token " + attrs.token 568 + " is not for an application"); 569 case WindowManagerGlobal.ADD_APP_EXITING: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- app for token " + attrs.token 572 + " is exiting"); 573 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- window " + mWindow 576 + " has already been added"); 577 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 578 // Silently ignore -- we would have just removed it 579 // right away, anyway. 580 return; 581 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 582 throw new WindowManager.BadTokenException( 583 "Unable to add window " + mWindow + 584 " -- another window of this type already exists"); 585 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 586 throw new WindowManager.BadTokenException( 587 "Unable to add window " + mWindow + 588 " -- permission denied for this window type"); 589 } 590 throw new RuntimeException( 591 "Unable to add window -- unknown error code " + res); 592 } 593 594 if (view instanceof RootViewSurfaceTaker) { 595 mInputQueueCallback = 596 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 597 } 598 if (mInputChannel != null) { 599 if (mInputQueueCallback != null) { 600 mInputQueue = new InputQueue(mInputChannel); 601 mInputQueueCallback.onInputQueueCreated(mInputQueue); 602 } else { 603 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 604 Looper.myLooper()); 605 } 606 } 607 608 view.assignParent(this); 609 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 610 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 611 612 if (mAccessibilityManager.isEnabled()) { 613 mAccessibilityInteractionConnectionManager.ensureConnection(); 614 } 615 616 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 617 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 618 } 619 } 620 } 621 } 622 623 void destroyHardwareResources() { 624 if (mAttachInfo.mHardwareRenderer != null) { 625 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 626 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 627 } 628 mAttachInfo.mHardwareRenderer.destroy(false); 629 } 630 } 631 632 void terminateHardwareResources() { 633 if (mAttachInfo.mHardwareRenderer != null) { 634 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 635 mAttachInfo.mHardwareRenderer.destroy(false); 636 } 637 } 638 639 void destroyHardwareLayers() { 640 if (mThread != Thread.currentThread()) { 641 if (mAttachInfo.mHardwareRenderer != null && 642 mAttachInfo.mHardwareRenderer.isEnabled()) { 643 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 644 } 645 } else { 646 if (mAttachInfo.mHardwareRenderer != null && 647 mAttachInfo.mHardwareRenderer.isEnabled()) { 648 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 649 } 650 } 651 } 652 653 public boolean attachFunctor(int functor) { 654 //noinspection SimplifiableIfStatement 655 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 656 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 657 } 658 return false; 659 } 660 661 public void detachFunctor(int functor) { 662 if (mAttachInfo.mHardwareRenderer != null) { 663 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 664 } 665 } 666 667 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 668 mAttachInfo.mHardwareAccelerated = false; 669 mAttachInfo.mHardwareAccelerationRequested = false; 670 671 // Don't enable hardware acceleration when the application is in compatibility mode 672 if (mTranslator != null) return; 673 674 // Try to enable hardware acceleration if requested 675 final boolean hardwareAccelerated = 676 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 677 678 if (hardwareAccelerated) { 679 if (!HardwareRenderer.isAvailable()) { 680 return; 681 } 682 683 // Persistent processes (including the system) should not do 684 // accelerated rendering on low-end devices. In that case, 685 // sRendererDisabled will be set. In addition, the system process 686 // itself should never do accelerated rendering. In that case, both 687 // sRendererDisabled and sSystemRendererDisabled are set. When 688 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 689 // can be used by code on the system process to escape that and enable 690 // HW accelerated drawing. (This is basically for the lock screen.) 691 692 final boolean fakeHwAccelerated = (attrs.privateFlags & 693 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 694 final boolean forceHwAccelerated = (attrs.privateFlags & 695 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 696 697 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 698 && forceHwAccelerated)) { 699 // Don't enable hardware acceleration when we're not on the main thread 700 if (!HardwareRenderer.sSystemRendererDisabled && 701 Looper.getMainLooper() != Looper.myLooper()) { 702 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 703 + "acceleration outside of the main thread, aborting"); 704 return; 705 } 706 707 final boolean renderThread = isRenderThreadRequested(context); 708 if (renderThread) { 709 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 710 } 711 712 if (mAttachInfo.mHardwareRenderer != null) { 713 mAttachInfo.mHardwareRenderer.destroy(true); 714 } 715 716 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 717 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 718 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 719 = mAttachInfo.mHardwareRenderer != null; 720 721 } else if (fakeHwAccelerated) { 722 // The window had wanted to use hardware acceleration, but this 723 // is not allowed in its process. By setting this flag, it can 724 // still render as if it was accelerated. This is basically for 725 // the preview windows the window manager shows for launching 726 // applications, so they will look more like the app being launched. 727 mAttachInfo.mHardwareAccelerationRequested = true; 728 } 729 } 730 } 731 732 public View getView() { 733 return mView; 734 } 735 736 final WindowLeaked getLocation() { 737 return mLocation; 738 } 739 740 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 741 synchronized (this) { 742 int oldSoftInputMode = mWindowAttributes.softInputMode; 743 // Keep track of the actual window flags supplied by the client. 744 mClientWindowLayoutFlags = attrs.flags; 745 // preserve compatible window flag if exists. 746 int compatibleWindowFlag = 747 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 748 // transfer over system UI visibility values as they carry current state. 749 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 750 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 751 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 752 mWindowAttributes.flags |= compatibleWindowFlag; 753 754 applyKeepScreenOnFlag(mWindowAttributes); 755 756 if (newView) { 757 mSoftInputMode = attrs.softInputMode; 758 requestLayout(); 759 } 760 // Don't lose the mode we last auto-computed. 761 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 762 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 763 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 764 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 765 | (oldSoftInputMode 766 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 767 } 768 mWindowAttributesChanged = true; 769 scheduleTraversals(); 770 } 771 } 772 773 void handleAppVisibility(boolean visible) { 774 if (mAppVisible != visible) { 775 mAppVisible = visible; 776 scheduleTraversals(); 777 } 778 } 779 780 void handleGetNewSurface() { 781 mNewSurfaceNeeded = true; 782 mFullRedrawNeeded = true; 783 scheduleTraversals(); 784 } 785 786 void handleScreenStateChange(boolean on) { 787 if (on != mAttachInfo.mScreenOn) { 788 mAttachInfo.mScreenOn = on; 789 if (mView != null) { 790 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 791 } 792 if (on) { 793 mFullRedrawNeeded = true; 794 scheduleTraversals(); 795 } 796 } 797 } 798 799 /** 800 * {@inheritDoc} 801 */ 802 public void requestFitSystemWindows() { 803 checkThread(); 804 mFitSystemWindowsRequested = true; 805 scheduleTraversals(); 806 } 807 808 /** 809 * {@inheritDoc} 810 */ 811 public void requestLayout() { 812 checkThread(); 813 mLayoutRequested = true; 814 scheduleTraversals(); 815 } 816 817 /** 818 * {@inheritDoc} 819 */ 820 public boolean isLayoutRequested() { 821 return mLayoutRequested; 822 } 823 824 void invalidate() { 825 mDirty.set(0, 0, mWidth, mHeight); 826 scheduleTraversals(); 827 } 828 829 void invalidateWorld(View view) { 830 view.invalidate(); 831 if (view instanceof ViewGroup) { 832 ViewGroup parent = (ViewGroup)view; 833 for (int i=0; i<parent.getChildCount(); i++) { 834 invalidateWorld(parent.getChildAt(i)); 835 } 836 } 837 } 838 839 public void invalidateChild(View child, Rect dirty) { 840 invalidateChildInParent(null, dirty); 841 } 842 843 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 844 checkThread(); 845 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 846 847 if (dirty == null) { 848 invalidate(); 849 return null; 850 } else if (dirty.isEmpty()) { 851 return null; 852 } 853 854 if (mCurScrollY != 0 || mTranslator != null) { 855 mTempRect.set(dirty); 856 dirty = mTempRect; 857 if (mCurScrollY != 0) { 858 dirty.offset(0, -mCurScrollY); 859 } 860 if (mTranslator != null) { 861 mTranslator.translateRectInAppWindowToScreen(dirty); 862 } 863 if (mAttachInfo.mScalingRequired) { 864 dirty.inset(-1, -1); 865 } 866 } 867 868 final Rect localDirty = mDirty; 869 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 870 mAttachInfo.mSetIgnoreDirtyState = true; 871 mAttachInfo.mIgnoreDirtyState = true; 872 } 873 874 // Add the new dirty rect to the current one 875 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 876 // Intersect with the bounds of the window to skip 877 // updates that lie outside of the visible region 878 final float appScale = mAttachInfo.mApplicationScale; 879 localDirty.intersect(0, 0, 880 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 881 882 if (!mWillDrawSoon) { 883 scheduleTraversals(); 884 } 885 886 return null; 887 } 888 889 void setStopped(boolean stopped) { 890 if (mStopped != stopped) { 891 mStopped = stopped; 892 if (!stopped) { 893 scheduleTraversals(); 894 } 895 } 896 } 897 898 public ViewParent getParent() { 899 return null; 900 } 901 902 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 903 if (child != mView) { 904 throw new RuntimeException("child is not mine, honest!"); 905 } 906 // Note: don't apply scroll offset, because we want to know its 907 // visibility in the virtual canvas being given to the view hierarchy. 908 return r.intersect(0, 0, mWidth, mHeight); 909 } 910 911 public void bringChildToFront(View child) { 912 } 913 914 int getHostVisibility() { 915 return mAppVisible ? mView.getVisibility() : View.GONE; 916 } 917 918 void disposeResizeBuffer() { 919 if (mResizeBuffer != null) { 920 mResizeBuffer.destroy(); 921 mResizeBuffer = null; 922 } 923 } 924 925 /** 926 * Add LayoutTransition to the list of transitions to be started in the next traversal. 927 * This list will be cleared after the transitions on the list are start()'ed. These 928 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 929 * happens during the layout phase of traversal, which we want to complete before any of the 930 * animations are started (because those animations may side-effect properties that layout 931 * depends upon, like the bounding rectangles of the affected views). So we add the transition 932 * to the list and it is started just prior to starting the drawing phase of traversal. 933 * 934 * @param transition The LayoutTransition to be started on the next traversal. 935 * 936 * @hide 937 */ 938 public void requestTransitionStart(LayoutTransition transition) { 939 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 940 if (mPendingTransitions == null) { 941 mPendingTransitions = new ArrayList<LayoutTransition>(); 942 } 943 mPendingTransitions.add(transition); 944 } 945 } 946 947 void scheduleTraversals() { 948 if (!mTraversalScheduled) { 949 mTraversalScheduled = true; 950 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 951 mChoreographer.postCallback( 952 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 953 scheduleConsumeBatchedInput(); 954 } 955 } 956 957 void unscheduleTraversals() { 958 if (mTraversalScheduled) { 959 mTraversalScheduled = false; 960 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 961 mChoreographer.removeCallbacks( 962 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 963 } 964 } 965 966 void doTraversal() { 967 if (mTraversalScheduled) { 968 mTraversalScheduled = false; 969 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 970 971 if (mProfile) { 972 Debug.startMethodTracing("ViewAncestor"); 973 } 974 975 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 976 try { 977 performTraversals(); 978 } finally { 979 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 980 } 981 982 if (mProfile) { 983 Debug.stopMethodTracing(); 984 mProfile = false; 985 } 986 } 987 } 988 989 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 990 // Update window's global keep screen on flag: if a view has requested 991 // that the screen be kept on, then it is always set; otherwise, it is 992 // set to whatever the client last requested for the global state. 993 if (mAttachInfo.mKeepScreenOn) { 994 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 995 } else { 996 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 997 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 998 } 999 } 1000 1001 private boolean collectViewAttributes() { 1002 final View.AttachInfo attachInfo = mAttachInfo; 1003 if (attachInfo.mRecomputeGlobalAttributes) { 1004 //Log.i(TAG, "Computing view hierarchy attributes!"); 1005 attachInfo.mRecomputeGlobalAttributes = false; 1006 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1007 int oldVis = attachInfo.mSystemUiVisibility; 1008 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1009 attachInfo.mKeepScreenOn = false; 1010 attachInfo.mSystemUiVisibility = 0; 1011 attachInfo.mHasSystemUiListeners = false; 1012 mView.dispatchCollectViewAttributes(attachInfo, 0); 1013 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1014 if (attachInfo.mKeepScreenOn != oldScreenOn 1015 || attachInfo.mSystemUiVisibility != oldVis 1016 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1017 WindowManager.LayoutParams params = mWindowAttributes; 1018 applyKeepScreenOnFlag(params); 1019 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1020 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1021 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1022 return true; 1023 } 1024 } 1025 return false; 1026 } 1027 1028 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1029 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1030 int childWidthMeasureSpec; 1031 int childHeightMeasureSpec; 1032 boolean windowSizeMayChange = false; 1033 1034 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1035 "Measuring " + host + " in display " + desiredWindowWidth 1036 + "x" + desiredWindowHeight + "..."); 1037 1038 boolean goodMeasure = false; 1039 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1040 // On large screens, we don't want to allow dialogs to just 1041 // stretch to fill the entire width of the screen to display 1042 // one line of text. First try doing the layout at a smaller 1043 // size to see if it will fit. 1044 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1045 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1046 int baseSize = 0; 1047 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1048 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1049 } 1050 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1051 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1052 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1053 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1054 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1055 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1056 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1057 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1058 goodMeasure = true; 1059 } else { 1060 // Didn't fit in that size... try expanding a bit. 1061 baseSize = (baseSize+desiredWindowWidth)/2; 1062 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1063 + baseSize); 1064 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1065 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1066 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1067 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1068 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1069 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1070 goodMeasure = true; 1071 } 1072 } 1073 } 1074 } 1075 1076 if (!goodMeasure) { 1077 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1078 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1079 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1080 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1081 windowSizeMayChange = true; 1082 } 1083 } 1084 1085 if (DBG) { 1086 System.out.println("======================================"); 1087 System.out.println("performTraversals -- after measure"); 1088 host.debug(); 1089 } 1090 1091 return windowSizeMayChange; 1092 } 1093 1094 private void performTraversals() { 1095 // cache mView since it is used so much below... 1096 final View host = mView; 1097 1098 if (DBG) { 1099 System.out.println("======================================"); 1100 System.out.println("performTraversals"); 1101 host.debug(); 1102 } 1103 1104 if (host == null || !mAdded) 1105 return; 1106 1107 mWillDrawSoon = true; 1108 boolean windowSizeMayChange = false; 1109 boolean newSurface = false; 1110 boolean surfaceChanged = false; 1111 WindowManager.LayoutParams lp = mWindowAttributes; 1112 1113 int desiredWindowWidth; 1114 int desiredWindowHeight; 1115 1116 final View.AttachInfo attachInfo = mAttachInfo; 1117 1118 final int viewVisibility = getHostVisibility(); 1119 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1120 || mNewSurfaceNeeded; 1121 1122 WindowManager.LayoutParams params = null; 1123 if (mWindowAttributesChanged) { 1124 mWindowAttributesChanged = false; 1125 surfaceChanged = true; 1126 params = lp; 1127 } 1128 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1129 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1130 params = lp; 1131 mFullRedrawNeeded = true; 1132 mLayoutRequested = true; 1133 if (mLastInCompatMode) { 1134 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1135 mLastInCompatMode = false; 1136 } else { 1137 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1138 mLastInCompatMode = true; 1139 } 1140 } 1141 1142 mWindowAttributesChangesFlag = 0; 1143 1144 Rect frame = mWinFrame; 1145 if (mFirst) { 1146 mFullRedrawNeeded = true; 1147 mLayoutRequested = true; 1148 1149 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1150 // NOTE -- system code, won't try to do compat mode. 1151 Point size = new Point(); 1152 mDisplay.getRealSize(size); 1153 desiredWindowWidth = size.x; 1154 desiredWindowHeight = size.y; 1155 } else { 1156 DisplayMetrics packageMetrics = 1157 mView.getContext().getResources().getDisplayMetrics(); 1158 desiredWindowWidth = packageMetrics.widthPixels; 1159 desiredWindowHeight = packageMetrics.heightPixels; 1160 } 1161 1162 // For the very first time, tell the view hierarchy that it 1163 // is attached to the window. Note that at this point the surface 1164 // object is not initialized to its backing store, but soon it 1165 // will be (assuming the window is visible). 1166 attachInfo.mSurface = mSurface; 1167 // We used to use the following condition to choose 32 bits drawing caches: 1168 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1169 // However, windows are now always 32 bits by default, so choose 32 bits 1170 attachInfo.mUse32BitDrawingCache = true; 1171 attachInfo.mHasWindowFocus = false; 1172 attachInfo.mWindowVisibility = viewVisibility; 1173 attachInfo.mRecomputeGlobalAttributes = false; 1174 viewVisibilityChanged = false; 1175 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1176 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1177 host.dispatchAttachedToWindow(attachInfo, 0); 1178 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1179 host.fitSystemWindows(mFitSystemWindowsInsets); 1180 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1181 1182 } else { 1183 desiredWindowWidth = frame.width(); 1184 desiredWindowHeight = frame.height(); 1185 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1186 if (DEBUG_ORIENTATION) Log.v(TAG, 1187 "View " + host + " resized to: " + frame); 1188 mFullRedrawNeeded = true; 1189 mLayoutRequested = true; 1190 windowSizeMayChange = true; 1191 } 1192 } 1193 1194 if (viewVisibilityChanged) { 1195 attachInfo.mWindowVisibility = viewVisibility; 1196 host.dispatchWindowVisibilityChanged(viewVisibility); 1197 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1198 destroyHardwareResources(); 1199 } 1200 if (viewVisibility == View.GONE) { 1201 // After making a window gone, we will count it as being 1202 // shown for the first time the next time it gets focus. 1203 mHasHadWindowFocus = false; 1204 } 1205 } 1206 1207 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1208 getRunQueue().executeActions(attachInfo.mHandler); 1209 1210 boolean insetsChanged = false; 1211 1212 boolean layoutRequested = mLayoutRequested && !mStopped; 1213 if (layoutRequested) { 1214 1215 final Resources res = mView.getContext().getResources(); 1216 1217 if (mFirst) { 1218 // make sure touch mode code executes by setting cached value 1219 // to opposite of the added touch mode. 1220 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1221 ensureTouchModeLocally(mAddedTouchMode); 1222 } else { 1223 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1224 insetsChanged = true; 1225 } 1226 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1227 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1228 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1229 + mAttachInfo.mVisibleInsets); 1230 } 1231 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1232 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1233 windowSizeMayChange = true; 1234 1235 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1236 // NOTE -- system code, won't try to do compat mode. 1237 Point size = new Point(); 1238 mDisplay.getRealSize(size); 1239 desiredWindowWidth = size.x; 1240 desiredWindowHeight = size.y; 1241 } else { 1242 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1243 desiredWindowWidth = packageMetrics.widthPixels; 1244 desiredWindowHeight = packageMetrics.heightPixels; 1245 } 1246 } 1247 } 1248 1249 // Ask host how big it wants to be 1250 windowSizeMayChange |= measureHierarchy(host, lp, res, 1251 desiredWindowWidth, desiredWindowHeight); 1252 } 1253 1254 if (collectViewAttributes()) { 1255 params = lp; 1256 } 1257 if (attachInfo.mForceReportNewAttributes) { 1258 attachInfo.mForceReportNewAttributes = false; 1259 params = lp; 1260 } 1261 1262 if (mFirst || attachInfo.mViewVisibilityChanged) { 1263 attachInfo.mViewVisibilityChanged = false; 1264 int resizeMode = mSoftInputMode & 1265 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1266 // If we are in auto resize mode, then we need to determine 1267 // what mode to use now. 1268 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1269 final int N = attachInfo.mScrollContainers.size(); 1270 for (int i=0; i<N; i++) { 1271 if (attachInfo.mScrollContainers.get(i).isShown()) { 1272 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1273 } 1274 } 1275 if (resizeMode == 0) { 1276 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1277 } 1278 if ((lp.softInputMode & 1279 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1280 lp.softInputMode = (lp.softInputMode & 1281 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1282 resizeMode; 1283 params = lp; 1284 } 1285 } 1286 } 1287 1288 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1289 if (!PixelFormat.formatHasAlpha(params.format)) { 1290 params.format = PixelFormat.TRANSLUCENT; 1291 } 1292 } 1293 1294 if (mFitSystemWindowsRequested) { 1295 mFitSystemWindowsRequested = false; 1296 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1297 host.fitSystemWindows(mFitSystemWindowsInsets); 1298 if (mLayoutRequested) { 1299 // Short-circuit catching a new layout request here, so 1300 // we don't need to go through two layout passes when things 1301 // change due to fitting system windows, which can happen a lot. 1302 windowSizeMayChange |= measureHierarchy(host, lp, 1303 mView.getContext().getResources(), 1304 desiredWindowWidth, desiredWindowHeight); 1305 } 1306 } 1307 1308 if (layoutRequested) { 1309 // Clear this now, so that if anything requests a layout in the 1310 // rest of this function we will catch it and re-run a full 1311 // layout pass. 1312 mLayoutRequested = false; 1313 } 1314 1315 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1316 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1317 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1318 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1319 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1320 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1321 1322 final boolean computesInternalInsets = 1323 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1324 1325 boolean insetsPending = false; 1326 int relayoutResult = 0; 1327 1328 if (mFirst || windowShouldResize || insetsChanged || 1329 viewVisibilityChanged || params != null) { 1330 1331 if (viewVisibility == View.VISIBLE) { 1332 // If this window is giving internal insets to the window 1333 // manager, and it is being added or changing its visibility, 1334 // then we want to first give the window manager "fake" 1335 // insets to cause it to effectively ignore the content of 1336 // the window during layout. This avoids it briefly causing 1337 // other windows to resize/move based on the raw frame of the 1338 // window, waiting until we can finish laying out this window 1339 // and get back to the window manager with the ultimately 1340 // computed insets. 1341 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1342 } 1343 1344 if (mSurfaceHolder != null) { 1345 mSurfaceHolder.mSurfaceLock.lock(); 1346 mDrawingAllowed = true; 1347 } 1348 1349 boolean hwInitialized = false; 1350 boolean contentInsetsChanged = false; 1351 boolean visibleInsetsChanged; 1352 boolean hadSurface = mSurface.isValid(); 1353 1354 try { 1355 if (DEBUG_LAYOUT) { 1356 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1357 host.getMeasuredHeight() + ", params=" + params); 1358 } 1359 1360 final int surfaceGenerationId = mSurface.getGenerationId(); 1361 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1362 1363 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1364 + " content=" + mPendingContentInsets.toShortString() 1365 + " visible=" + mPendingVisibleInsets.toShortString() 1366 + " surface=" + mSurface); 1367 1368 if (mPendingConfiguration.seq != 0) { 1369 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1370 + mPendingConfiguration); 1371 updateConfiguration(mPendingConfiguration, !mFirst); 1372 mPendingConfiguration.seq = 0; 1373 } 1374 1375 contentInsetsChanged = !mPendingContentInsets.equals( 1376 mAttachInfo.mContentInsets); 1377 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1378 mAttachInfo.mVisibleInsets); 1379 if (contentInsetsChanged) { 1380 if (mWidth > 0 && mHeight > 0 && lp != null && 1381 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1382 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1383 mSurface != null && mSurface.isValid() && 1384 !mAttachInfo.mTurnOffWindowResizeAnim && 1385 mAttachInfo.mHardwareRenderer != null && 1386 mAttachInfo.mHardwareRenderer.isEnabled() && 1387 mAttachInfo.mHardwareRenderer.validate() && 1388 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1389 1390 disposeResizeBuffer(); 1391 1392 boolean completed = false; 1393 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1394 HardwareCanvas layerCanvas = null; 1395 try { 1396 if (mResizeBuffer == null) { 1397 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1398 mWidth, mHeight, false); 1399 } else if (mResizeBuffer.getWidth() != mWidth || 1400 mResizeBuffer.getHeight() != mHeight) { 1401 mResizeBuffer.resize(mWidth, mHeight); 1402 } 1403 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1404 layerCanvas.setViewport(mWidth, mHeight); 1405 layerCanvas.onPreDraw(null); 1406 final int restoreCount = layerCanvas.save(); 1407 1408 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1409 1410 int yoff; 1411 final boolean scrolling = mScroller != null 1412 && mScroller.computeScrollOffset(); 1413 if (scrolling) { 1414 yoff = mScroller.getCurrY(); 1415 mScroller.abortAnimation(); 1416 } else { 1417 yoff = mScrollY; 1418 } 1419 1420 layerCanvas.translate(0, -yoff); 1421 if (mTranslator != null) { 1422 mTranslator.translateCanvas(layerCanvas); 1423 } 1424 1425 mView.draw(layerCanvas); 1426 1427 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1428 1429 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1430 mResizeBufferDuration = mView.getResources().getInteger( 1431 com.android.internal.R.integer.config_mediumAnimTime); 1432 completed = true; 1433 1434 layerCanvas.restoreToCount(restoreCount); 1435 } catch (OutOfMemoryError e) { 1436 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1437 } finally { 1438 if (layerCanvas != null) { 1439 layerCanvas.onPostDraw(); 1440 } 1441 if (mResizeBuffer != null) { 1442 mResizeBuffer.end(hwRendererCanvas); 1443 if (!completed) { 1444 mResizeBuffer.destroy(); 1445 mResizeBuffer = null; 1446 } 1447 } 1448 } 1449 } 1450 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1451 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1452 + mAttachInfo.mContentInsets); 1453 } 1454 if (contentInsetsChanged || mLastSystemUiVisibility != 1455 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1456 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1457 mFitSystemWindowsRequested = false; 1458 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1459 host.fitSystemWindows(mFitSystemWindowsInsets); 1460 } 1461 if (visibleInsetsChanged) { 1462 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1463 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1464 + mAttachInfo.mVisibleInsets); 1465 } 1466 1467 if (!hadSurface) { 1468 if (mSurface.isValid()) { 1469 // If we are creating a new surface, then we need to 1470 // completely redraw it. Also, when we get to the 1471 // point of drawing it we will hold off and schedule 1472 // a new traversal instead. This is so we can tell the 1473 // window manager about all of the windows being displayed 1474 // before actually drawing them, so it can display then 1475 // all at once. 1476 newSurface = true; 1477 mFullRedrawNeeded = true; 1478 mPreviousTransparentRegion.setEmpty(); 1479 1480 if (mAttachInfo.mHardwareRenderer != null) { 1481 try { 1482 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1483 mHolder.getSurface()); 1484 } catch (Surface.OutOfResourcesException e) { 1485 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1486 try { 1487 if (!mWindowSession.outOfMemory(mWindow)) { 1488 Slog.w(TAG, "No processes killed for memory; killing self"); 1489 Process.killProcess(Process.myPid()); 1490 } 1491 } catch (RemoteException ex) { 1492 } 1493 mLayoutRequested = true; // ask wm for a new surface next time. 1494 return; 1495 } 1496 } 1497 } 1498 } else if (!mSurface.isValid()) { 1499 // If the surface has been removed, then reset the scroll 1500 // positions. 1501 mLastScrolledFocus = null; 1502 mScrollY = mCurScrollY = 0; 1503 if (mScroller != null) { 1504 mScroller.abortAnimation(); 1505 } 1506 disposeResizeBuffer(); 1507 // Our surface is gone 1508 if (mAttachInfo.mHardwareRenderer != null && 1509 mAttachInfo.mHardwareRenderer.isEnabled()) { 1510 mAttachInfo.mHardwareRenderer.destroy(true); 1511 } 1512 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1513 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1514 mFullRedrawNeeded = true; 1515 try { 1516 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1517 } catch (Surface.OutOfResourcesException e) { 1518 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1519 try { 1520 if (!mWindowSession.outOfMemory(mWindow)) { 1521 Slog.w(TAG, "No processes killed for memory; killing self"); 1522 Process.killProcess(Process.myPid()); 1523 } 1524 } catch (RemoteException ex) { 1525 } 1526 mLayoutRequested = true; // ask wm for a new surface next time. 1527 return; 1528 } 1529 } 1530 } catch (RemoteException e) { 1531 } 1532 1533 if (DEBUG_ORIENTATION) Log.v( 1534 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1535 1536 attachInfo.mWindowLeft = frame.left; 1537 attachInfo.mWindowTop = frame.top; 1538 1539 // !!FIXME!! This next section handles the case where we did not get the 1540 // window size we asked for. We should avoid this by getting a maximum size from 1541 // the window session beforehand. 1542 if (mWidth != frame.width() || mHeight != frame.height()) { 1543 mWidth = frame.width(); 1544 mHeight = frame.height(); 1545 } 1546 1547 if (mSurfaceHolder != null) { 1548 // The app owns the surface; tell it about what is going on. 1549 if (mSurface.isValid()) { 1550 // XXX .copyFrom() doesn't work! 1551 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1552 mSurfaceHolder.mSurface = mSurface; 1553 } 1554 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1555 mSurfaceHolder.mSurfaceLock.unlock(); 1556 if (mSurface.isValid()) { 1557 if (!hadSurface) { 1558 mSurfaceHolder.ungetCallbacks(); 1559 1560 mIsCreating = true; 1561 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1562 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1563 if (callbacks != null) { 1564 for (SurfaceHolder.Callback c : callbacks) { 1565 c.surfaceCreated(mSurfaceHolder); 1566 } 1567 } 1568 surfaceChanged = true; 1569 } 1570 if (surfaceChanged) { 1571 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1572 lp.format, mWidth, mHeight); 1573 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1574 if (callbacks != null) { 1575 for (SurfaceHolder.Callback c : callbacks) { 1576 c.surfaceChanged(mSurfaceHolder, lp.format, 1577 mWidth, mHeight); 1578 } 1579 } 1580 } 1581 mIsCreating = false; 1582 } else if (hadSurface) { 1583 mSurfaceHolder.ungetCallbacks(); 1584 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1585 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1586 if (callbacks != null) { 1587 for (SurfaceHolder.Callback c : callbacks) { 1588 c.surfaceDestroyed(mSurfaceHolder); 1589 } 1590 } 1591 mSurfaceHolder.mSurfaceLock.lock(); 1592 try { 1593 mSurfaceHolder.mSurface = new Surface(); 1594 } finally { 1595 mSurfaceHolder.mSurfaceLock.unlock(); 1596 } 1597 } 1598 } 1599 1600 if (mAttachInfo.mHardwareRenderer != null && 1601 mAttachInfo.mHardwareRenderer.isEnabled()) { 1602 if (hwInitialized || windowShouldResize || 1603 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1604 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1605 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1606 if (!hwInitialized) { 1607 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1608 } 1609 } 1610 } 1611 1612 if (!mStopped) { 1613 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1614 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1615 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1616 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1617 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1618 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1619 1620 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1621 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1622 + " mHeight=" + mHeight 1623 + " measuredHeight=" + host.getMeasuredHeight() 1624 + " coveredInsetsChanged=" + contentInsetsChanged); 1625 1626 // Ask host how big it wants to be 1627 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1628 1629 // Implementation of weights from WindowManager.LayoutParams 1630 // We just grow the dimensions as needed and re-measure if 1631 // needs be 1632 int width = host.getMeasuredWidth(); 1633 int height = host.getMeasuredHeight(); 1634 boolean measureAgain = false; 1635 1636 if (lp.horizontalWeight > 0.0f) { 1637 width += (int) ((mWidth - width) * lp.horizontalWeight); 1638 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1639 MeasureSpec.EXACTLY); 1640 measureAgain = true; 1641 } 1642 if (lp.verticalWeight > 0.0f) { 1643 height += (int) ((mHeight - height) * lp.verticalWeight); 1644 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1645 MeasureSpec.EXACTLY); 1646 measureAgain = true; 1647 } 1648 1649 if (measureAgain) { 1650 if (DEBUG_LAYOUT) Log.v(TAG, 1651 "And hey let's measure once more: width=" + width 1652 + " height=" + height); 1653 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1654 } 1655 1656 layoutRequested = true; 1657 } 1658 } 1659 } else { 1660 // Not the first pass and no window/insets/visibility change but the window 1661 // may have moved and we need check that and if so to update the left and right 1662 // in the attach info. We translate only the window frame since on window move 1663 // the window manager tells us only for the new frame but the insets are the 1664 // same and we do not want to translate them more than once. 1665 1666 // TODO: Well, we are checking whether the frame has changed similarly 1667 // to how this is done for the insets. This is however incorrect since 1668 // the insets and the frame are translated. For example, the old frame 1669 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1670 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1671 // true since we are comparing a not translated value to a translated one. 1672 // This scenario is rare but we may want to fix that. 1673 1674 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1675 || attachInfo.mWindowTop != frame.top); 1676 if (windowMoved) { 1677 if (mTranslator != null) { 1678 mTranslator.translateRectInScreenToAppWinFrame(frame); 1679 } 1680 attachInfo.mWindowLeft = frame.left; 1681 attachInfo.mWindowTop = frame.top; 1682 } 1683 } 1684 1685 final boolean didLayout = layoutRequested && !mStopped; 1686 boolean triggerGlobalLayoutListener = didLayout 1687 || attachInfo.mRecomputeGlobalAttributes; 1688 if (didLayout) { 1689 performLayout(); 1690 1691 // By this point all views have been sized and positionned 1692 // We can compute the transparent area 1693 1694 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1695 // start out transparent 1696 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1697 host.getLocationInWindow(mTmpLocation); 1698 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1699 mTmpLocation[0] + host.mRight - host.mLeft, 1700 mTmpLocation[1] + host.mBottom - host.mTop); 1701 1702 host.gatherTransparentRegion(mTransparentRegion); 1703 if (mTranslator != null) { 1704 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1705 } 1706 1707 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1708 mPreviousTransparentRegion.set(mTransparentRegion); 1709 // reconfigure window manager 1710 try { 1711 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1712 } catch (RemoteException e) { 1713 } 1714 } 1715 } 1716 1717 if (DBG) { 1718 System.out.println("======================================"); 1719 System.out.println("performTraversals -- after setFrame"); 1720 host.debug(); 1721 } 1722 } 1723 1724 if (triggerGlobalLayoutListener) { 1725 attachInfo.mRecomputeGlobalAttributes = false; 1726 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1727 1728 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1729 postSendWindowContentChangedCallback(mView); 1730 } 1731 } 1732 1733 if (computesInternalInsets) { 1734 // Clear the original insets. 1735 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1736 insets.reset(); 1737 1738 // Compute new insets in place. 1739 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1740 1741 // Tell the window manager. 1742 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1743 mLastGivenInsets.set(insets); 1744 1745 // Translate insets to screen coordinates if needed. 1746 final Rect contentInsets; 1747 final Rect visibleInsets; 1748 final Region touchableRegion; 1749 if (mTranslator != null) { 1750 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1751 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1752 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1753 } else { 1754 contentInsets = insets.contentInsets; 1755 visibleInsets = insets.visibleInsets; 1756 touchableRegion = insets.touchableRegion; 1757 } 1758 1759 try { 1760 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1761 contentInsets, visibleInsets, touchableRegion); 1762 } catch (RemoteException e) { 1763 } 1764 } 1765 } 1766 1767 boolean skipDraw = false; 1768 1769 if (mFirst) { 1770 // handle first focus request 1771 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1772 + mView.hasFocus()); 1773 if (mView != null) { 1774 if (!mView.hasFocus()) { 1775 mView.requestFocus(View.FOCUS_FORWARD); 1776 mFocusedView = mRealFocusedView = mView.findFocus(); 1777 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1778 + mFocusedView); 1779 } else { 1780 mRealFocusedView = mView.findFocus(); 1781 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1782 + mRealFocusedView); 1783 } 1784 } 1785 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1786 // The first time we relayout the window, if the system is 1787 // doing window animations, we want to hold of on any future 1788 // draws until the animation is done. 1789 mWindowsAnimating = true; 1790 } 1791 } else if (mWindowsAnimating) { 1792 skipDraw = true; 1793 } 1794 1795 mFirst = false; 1796 mWillDrawSoon = false; 1797 mNewSurfaceNeeded = false; 1798 mViewVisibility = viewVisibility; 1799 1800 if (mAttachInfo.mHasWindowFocus) { 1801 final boolean imTarget = WindowManager.LayoutParams 1802 .mayUseInputMethod(mWindowAttributes.flags); 1803 if (imTarget != mLastWasImTarget) { 1804 mLastWasImTarget = imTarget; 1805 InputMethodManager imm = InputMethodManager.peekInstance(); 1806 if (imm != null && imTarget) { 1807 imm.startGettingWindowFocus(mView); 1808 imm.onWindowFocus(mView, mView.findFocus(), 1809 mWindowAttributes.softInputMode, 1810 !mHasHadWindowFocus, mWindowAttributes.flags); 1811 } 1812 } 1813 } 1814 1815 // Remember if we must report the next draw. 1816 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1817 mReportNextDraw = true; 1818 } 1819 1820 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1821 viewVisibility != View.VISIBLE; 1822 1823 if (!cancelDraw && !newSurface) { 1824 if (!skipDraw || mReportNextDraw) { 1825 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1826 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1827 mPendingTransitions.get(i).startChangingAnimations(); 1828 } 1829 mPendingTransitions.clear(); 1830 } 1831 1832 performDraw(); 1833 } 1834 } else { 1835 if (viewVisibility == View.VISIBLE) { 1836 // Try again 1837 scheduleTraversals(); 1838 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1839 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1840 mPendingTransitions.get(i).endChangingAnimations(); 1841 } 1842 mPendingTransitions.clear(); 1843 } 1844 } 1845 } 1846 1847 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1848 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1849 try { 1850 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1851 } finally { 1852 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1853 } 1854 } 1855 1856 private void performLayout() { 1857 mLayoutRequested = false; 1858 mScrollMayChange = true; 1859 1860 final View host = mView; 1861 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1862 Log.v(TAG, "Laying out " + host + " to (" + 1863 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1864 } 1865 1866 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1867 try { 1868 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1869 } finally { 1870 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1871 } 1872 } 1873 1874 public void requestTransparentRegion(View child) { 1875 // the test below should not fail unless someone is messing with us 1876 checkThread(); 1877 if (mView == child) { 1878 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1879 // Need to make sure we re-evaluate the window attributes next 1880 // time around, to ensure the window has the correct format. 1881 mWindowAttributesChanged = true; 1882 mWindowAttributesChangesFlag = 0; 1883 requestLayout(); 1884 } 1885 } 1886 1887 /** 1888 * Figures out the measure spec for the root view in a window based on it's 1889 * layout params. 1890 * 1891 * @param windowSize 1892 * The available width or height of the window 1893 * 1894 * @param rootDimension 1895 * The layout params for one dimension (width or height) of the 1896 * window. 1897 * 1898 * @return The measure spec to use to measure the root view. 1899 */ 1900 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1901 int measureSpec; 1902 switch (rootDimension) { 1903 1904 case ViewGroup.LayoutParams.MATCH_PARENT: 1905 // Window can't resize. Force root view to be windowSize. 1906 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1907 break; 1908 case ViewGroup.LayoutParams.WRAP_CONTENT: 1909 // Window can resize. Set max size for root view. 1910 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1911 break; 1912 default: 1913 // Window wants to be an exact size. Force root view to be that size. 1914 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1915 break; 1916 } 1917 return measureSpec; 1918 } 1919 1920 int mHardwareYOffset; 1921 int mResizeAlpha; 1922 final Paint mResizePaint = new Paint(); 1923 1924 public void onHardwarePreDraw(HardwareCanvas canvas) { 1925 canvas.translate(0, -mHardwareYOffset); 1926 } 1927 1928 public void onHardwarePostDraw(HardwareCanvas canvas) { 1929 if (mResizeBuffer != null) { 1930 mResizePaint.setAlpha(mResizeAlpha); 1931 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1932 } 1933 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1934 } 1935 1936 /** 1937 * @hide 1938 */ 1939 void outputDisplayList(View view) { 1940 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1941 DisplayList displayList = view.getDisplayList(); 1942 if (displayList != null) { 1943 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1944 } 1945 } 1946 } 1947 1948 /** 1949 * @see #PROPERTY_PROFILE_RENDERING 1950 */ 1951 private void profileRendering(boolean enabled) { 1952 if (mProfileRendering) { 1953 mRenderProfilingEnabled = enabled; 1954 if (mRenderProfiler == null) { 1955 mRenderProfiler = new Thread(new Runnable() { 1956 @Override 1957 public void run() { 1958 Log.d(TAG, "Starting profiling thread"); 1959 while (mRenderProfilingEnabled) { 1960 mAttachInfo.mHandler.post(new Runnable() { 1961 @Override 1962 public void run() { 1963 mDirty.set(0, 0, mWidth, mHeight); 1964 scheduleTraversals(); 1965 } 1966 }); 1967 try { 1968 // TODO: This should use vsync when we get an API 1969 Thread.sleep(15); 1970 } catch (InterruptedException e) { 1971 Log.d(TAG, "Exiting profiling thread"); 1972 } 1973 } 1974 } 1975 }, "Rendering Profiler"); 1976 mRenderProfiler.start(); 1977 } else { 1978 mRenderProfiler.interrupt(); 1979 mRenderProfiler = null; 1980 } 1981 } 1982 } 1983 1984 /** 1985 * Called from draw() when DEBUG_FPS is enabled 1986 */ 1987 private void trackFPS() { 1988 // Tracks frames per second drawn. First value in a series of draws may be bogus 1989 // because it down not account for the intervening idle time 1990 long nowTime = System.currentTimeMillis(); 1991 if (mFpsStartTime < 0) { 1992 mFpsStartTime = mFpsPrevTime = nowTime; 1993 mFpsNumFrames = 0; 1994 } else { 1995 ++mFpsNumFrames; 1996 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1997 long frameTime = nowTime - mFpsPrevTime; 1998 long totalTime = nowTime - mFpsStartTime; 1999 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2000 mFpsPrevTime = nowTime; 2001 if (totalTime > 1000) { 2002 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2003 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2004 mFpsStartTime = nowTime; 2005 mFpsNumFrames = 0; 2006 } 2007 } 2008 } 2009 2010 private void performDraw() { 2011 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2012 return; 2013 } 2014 2015 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2016 mFullRedrawNeeded = false; 2017 2018 mIsDrawing = true; 2019 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2020 try { 2021 draw(fullRedrawNeeded); 2022 } finally { 2023 mIsDrawing = false; 2024 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2025 } 2026 2027 if (mReportNextDraw) { 2028 mReportNextDraw = false; 2029 2030 if (LOCAL_LOGV) { 2031 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2032 } 2033 if (mSurfaceHolder != null && mSurface.isValid()) { 2034 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2035 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2036 if (callbacks != null) { 2037 for (SurfaceHolder.Callback c : callbacks) { 2038 if (c instanceof SurfaceHolder.Callback2) { 2039 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2040 mSurfaceHolder); 2041 } 2042 } 2043 } 2044 } 2045 try { 2046 mWindowSession.finishDrawing(mWindow); 2047 } catch (RemoteException e) { 2048 } 2049 } 2050 } 2051 2052 private void draw(boolean fullRedrawNeeded) { 2053 Surface surface = mSurface; 2054 if (surface == null || !surface.isValid()) { 2055 return; 2056 } 2057 2058 if (DEBUG_FPS) { 2059 trackFPS(); 2060 } 2061 2062 if (!sFirstDrawComplete) { 2063 synchronized (sFirstDrawHandlers) { 2064 sFirstDrawComplete = true; 2065 final int count = sFirstDrawHandlers.size(); 2066 for (int i = 0; i< count; i++) { 2067 mHandler.post(sFirstDrawHandlers.get(i)); 2068 } 2069 } 2070 } 2071 2072 scrollToRectOrFocus(null, false); 2073 2074 final AttachInfo attachInfo = mAttachInfo; 2075 if (attachInfo.mViewScrollChanged) { 2076 attachInfo.mViewScrollChanged = false; 2077 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2078 } 2079 2080 int yoff; 2081 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2082 if (animating) { 2083 yoff = mScroller.getCurrY(); 2084 } else { 2085 yoff = mScrollY; 2086 } 2087 if (mCurScrollY != yoff) { 2088 mCurScrollY = yoff; 2089 fullRedrawNeeded = true; 2090 } 2091 2092 final float appScale = attachInfo.mApplicationScale; 2093 final boolean scalingRequired = attachInfo.mScalingRequired; 2094 2095 int resizeAlpha = 0; 2096 if (mResizeBuffer != null) { 2097 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2098 if (deltaTime < mResizeBufferDuration) { 2099 float amt = deltaTime/(float) mResizeBufferDuration; 2100 amt = mResizeInterpolator.getInterpolation(amt); 2101 animating = true; 2102 resizeAlpha = 255 - (int)(amt*255); 2103 } else { 2104 disposeResizeBuffer(); 2105 } 2106 } 2107 2108 final Rect dirty = mDirty; 2109 if (mSurfaceHolder != null) { 2110 // The app owns the surface, we won't draw. 2111 dirty.setEmpty(); 2112 if (animating) { 2113 if (mScroller != null) { 2114 mScroller.abortAnimation(); 2115 } 2116 disposeResizeBuffer(); 2117 } 2118 return; 2119 } 2120 2121 if (fullRedrawNeeded) { 2122 attachInfo.mIgnoreDirtyState = true; 2123 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2124 } 2125 2126 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2127 Log.v(TAG, "Draw " + mView + "/" 2128 + mWindowAttributes.getTitle() 2129 + ": dirty={" + dirty.left + "," + dirty.top 2130 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2131 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2132 appScale + ", width=" + mWidth + ", height=" + mHeight); 2133 } 2134 2135 attachInfo.mTreeObserver.dispatchOnDraw(); 2136 2137 if (!dirty.isEmpty() || mIsAnimating) { 2138 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2139 // Draw with hardware renderer. 2140 mIsAnimating = false; 2141 mHardwareYOffset = yoff; 2142 mResizeAlpha = resizeAlpha; 2143 2144 mCurrentDirty.set(dirty); 2145 mCurrentDirty.union(mPreviousDirty); 2146 mPreviousDirty.set(dirty); 2147 dirty.setEmpty(); 2148 2149 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2150 animating ? null : mCurrentDirty)) { 2151 mPreviousDirty.set(0, 0, mWidth, mHeight); 2152 } 2153 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2154 return; 2155 } 2156 } 2157 2158 if (animating) { 2159 mFullRedrawNeeded = true; 2160 scheduleTraversals(); 2161 } 2162 } 2163 2164 /** 2165 * @return true if drawing was succesfull, false if an error occurred 2166 */ 2167 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2168 boolean scalingRequired, Rect dirty) { 2169 2170 // If we get here with a disabled & requested hardware renderer, something went 2171 // wrong (an invalidate posted right before we destroyed the hardware surface 2172 // for instance) so we should just bail out. Locking the surface with software 2173 // rendering at this point would lock it forever and prevent hardware renderer 2174 // from doing its job when it comes back. 2175 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2176 attachInfo.mHardwareRenderer.isRequested()) { 2177 mFullRedrawNeeded = true; 2178 scheduleTraversals(); 2179 return false; 2180 } 2181 2182 // Draw with software renderer. 2183 Canvas canvas; 2184 try { 2185 int left = dirty.left; 2186 int top = dirty.top; 2187 int right = dirty.right; 2188 int bottom = dirty.bottom; 2189 2190 canvas = mSurface.lockCanvas(dirty); 2191 2192 if (left != dirty.left || top != dirty.top || right != dirty.right || 2193 bottom != dirty.bottom) { 2194 attachInfo.mIgnoreDirtyState = true; 2195 } 2196 2197 // TODO: Do this in native 2198 canvas.setDensity(mDensity); 2199 } catch (Surface.OutOfResourcesException e) { 2200 Log.e(TAG, "OutOfResourcesException locking surface", e); 2201 try { 2202 if (!mWindowSession.outOfMemory(mWindow)) { 2203 Slog.w(TAG, "No processes killed for memory; killing self"); 2204 Process.killProcess(Process.myPid()); 2205 } 2206 } catch (RemoteException ex) { 2207 } 2208 mLayoutRequested = true; // ask wm for a new surface next time. 2209 return false; 2210 } catch (IllegalArgumentException e) { 2211 Log.e(TAG, "Could not lock surface", e); 2212 // Don't assume this is due to out of memory, it could be 2213 // something else, and if it is something else then we could 2214 // kill stuff (or ourself) for no reason. 2215 mLayoutRequested = true; // ask wm for a new surface next time. 2216 return false; 2217 } 2218 2219 try { 2220 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2221 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2222 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2223 //canvas.drawARGB(255, 255, 0, 0); 2224 } 2225 2226 // If this bitmap's format includes an alpha channel, we 2227 // need to clear it before drawing so that the child will 2228 // properly re-composite its drawing on a transparent 2229 // background. This automatically respects the clip/dirty region 2230 // or 2231 // If we are applying an offset, we need to clear the area 2232 // where the offset doesn't appear to avoid having garbage 2233 // left in the blank areas. 2234 if (!canvas.isOpaque() || yoff != 0) { 2235 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2236 } 2237 2238 dirty.setEmpty(); 2239 mIsAnimating = false; 2240 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2241 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2242 2243 if (DEBUG_DRAW) { 2244 Context cxt = mView.getContext(); 2245 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2246 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2247 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2248 } 2249 try { 2250 canvas.translate(0, -yoff); 2251 if (mTranslator != null) { 2252 mTranslator.translateCanvas(canvas); 2253 } 2254 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2255 attachInfo.mSetIgnoreDirtyState = false; 2256 2257 mView.draw(canvas); 2258 2259 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2260 } finally { 2261 if (!attachInfo.mSetIgnoreDirtyState) { 2262 // Only clear the flag if it was not set during the mView.draw() call 2263 attachInfo.mIgnoreDirtyState = false; 2264 } 2265 } 2266 } finally { 2267 try { 2268 surface.unlockCanvasAndPost(canvas); 2269 } catch (IllegalArgumentException e) { 2270 Log.e(TAG, "Could not unlock surface", e); 2271 mLayoutRequested = true; // ask wm for a new surface next time. 2272 //noinspection ReturnInsideFinallyBlock 2273 return false; 2274 } 2275 2276 if (LOCAL_LOGV) { 2277 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2278 } 2279 } 2280 return true; 2281 } 2282 2283 /** 2284 * We want to draw a highlight around the current accessibility focused. 2285 * Since adding a style for all possible view is not a viable option we 2286 * have this specialized drawing method. 2287 * 2288 * Note: We are doing this here to be able to draw the highlight for 2289 * virtual views in addition to real ones. 2290 * 2291 * @param canvas The canvas on which to draw. 2292 */ 2293 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2294 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2295 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2296 return; 2297 } 2298 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2299 return; 2300 } 2301 Drawable drawable = getAccessibilityFocusedDrawable(); 2302 if (drawable == null) { 2303 return; 2304 } 2305 AccessibilityNodeProvider provider = 2306 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2307 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2308 if (provider == null) { 2309 mAccessibilityFocusedHost.getDrawingRect(bounds); 2310 if (mView instanceof ViewGroup) { 2311 ViewGroup viewGroup = (ViewGroup) mView; 2312 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2313 } 2314 } else { 2315 if (mAccessibilityFocusedVirtualView == null) { 2316 return; 2317 } 2318 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2319 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2320 } 2321 drawable.setBounds(bounds); 2322 drawable.draw(canvas); 2323 } 2324 2325 private Drawable getAccessibilityFocusedDrawable() { 2326 if (mAttachInfo != null) { 2327 // Lazily load the accessibility focus drawable. 2328 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2329 TypedValue value = new TypedValue(); 2330 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2331 R.attr.accessibilityFocusedDrawable, value, true); 2332 if (resolved) { 2333 mAttachInfo.mAccessibilityFocusDrawable = 2334 mView.mContext.getResources().getDrawable(value.resourceId); 2335 } 2336 } 2337 return mAttachInfo.mAccessibilityFocusDrawable; 2338 } 2339 return null; 2340 } 2341 2342 void invalidateDisplayLists() { 2343 final ArrayList<DisplayList> displayLists = mDisplayLists; 2344 final int count = displayLists.size(); 2345 2346 for (int i = 0; i < count; i++) { 2347 final DisplayList displayList = displayLists.get(i); 2348 displayList.invalidate(); 2349 displayList.clear(); 2350 } 2351 2352 displayLists.clear(); 2353 } 2354 2355 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2356 final View.AttachInfo attachInfo = mAttachInfo; 2357 final Rect ci = attachInfo.mContentInsets; 2358 final Rect vi = attachInfo.mVisibleInsets; 2359 int scrollY = 0; 2360 boolean handled = false; 2361 2362 if (vi.left > ci.left || vi.top > ci.top 2363 || vi.right > ci.right || vi.bottom > ci.bottom) { 2364 // We'll assume that we aren't going to change the scroll 2365 // offset, since we want to avoid that unless it is actually 2366 // going to make the focus visible... otherwise we scroll 2367 // all over the place. 2368 scrollY = mScrollY; 2369 // We can be called for two different situations: during a draw, 2370 // to update the scroll position if the focus has changed (in which 2371 // case 'rectangle' is null), or in response to a 2372 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2373 // is non-null and we just want to scroll to whatever that 2374 // rectangle is). 2375 View focus = mRealFocusedView; 2376 2377 // When in touch mode, focus points to the previously focused view, 2378 // which may have been removed from the view hierarchy. The following 2379 // line checks whether the view is still in our hierarchy. 2380 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2381 mRealFocusedView = null; 2382 return false; 2383 } 2384 2385 if (focus != mLastScrolledFocus) { 2386 // If the focus has changed, then ignore any requests to scroll 2387 // to a rectangle; first we want to make sure the entire focus 2388 // view is visible. 2389 rectangle = null; 2390 } 2391 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2392 + " rectangle=" + rectangle + " ci=" + ci 2393 + " vi=" + vi); 2394 if (focus == mLastScrolledFocus && !mScrollMayChange 2395 && rectangle == null) { 2396 // Optimization: if the focus hasn't changed since last 2397 // time, and no layout has happened, then just leave things 2398 // as they are. 2399 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2400 + mScrollY + " vi=" + vi.toShortString()); 2401 } else if (focus != null) { 2402 // We need to determine if the currently focused view is 2403 // within the visible part of the window and, if not, apply 2404 // a pan so it can be seen. 2405 mLastScrolledFocus = focus; 2406 mScrollMayChange = false; 2407 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2408 // Try to find the rectangle from the focus view. 2409 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2410 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2411 + mView.getWidth() + " h=" + mView.getHeight() 2412 + " ci=" + ci.toShortString() 2413 + " vi=" + vi.toShortString()); 2414 if (rectangle == null) { 2415 focus.getFocusedRect(mTempRect); 2416 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2417 + ": focusRect=" + mTempRect.toShortString()); 2418 if (mView instanceof ViewGroup) { 2419 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2420 focus, mTempRect); 2421 } 2422 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2423 "Focus in window: focusRect=" 2424 + mTempRect.toShortString() 2425 + " visRect=" + mVisRect.toShortString()); 2426 } else { 2427 mTempRect.set(rectangle); 2428 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2429 "Request scroll to rect: " 2430 + mTempRect.toShortString() 2431 + " visRect=" + mVisRect.toShortString()); 2432 } 2433 if (mTempRect.intersect(mVisRect)) { 2434 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2435 "Focus window visible rect: " 2436 + mTempRect.toShortString()); 2437 if (mTempRect.height() > 2438 (mView.getHeight()-vi.top-vi.bottom)) { 2439 // If the focus simply is not going to fit, then 2440 // best is probably just to leave things as-is. 2441 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2442 "Too tall; leaving scrollY=" + scrollY); 2443 } else if ((mTempRect.top-scrollY) < vi.top) { 2444 scrollY -= vi.top - (mTempRect.top-scrollY); 2445 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2446 "Top covered; scrollY=" + scrollY); 2447 } else if ((mTempRect.bottom-scrollY) 2448 > (mView.getHeight()-vi.bottom)) { 2449 scrollY += (mTempRect.bottom-scrollY) 2450 - (mView.getHeight()-vi.bottom); 2451 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2452 "Bottom covered; scrollY=" + scrollY); 2453 } 2454 handled = true; 2455 } 2456 } 2457 } 2458 } 2459 2460 if (scrollY != mScrollY) { 2461 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2462 + mScrollY + " , new=" + scrollY); 2463 if (!immediate && mResizeBuffer == null) { 2464 if (mScroller == null) { 2465 mScroller = new Scroller(mView.getContext()); 2466 } 2467 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2468 } else if (mScroller != null) { 2469 mScroller.abortAnimation(); 2470 } 2471 mScrollY = scrollY; 2472 } 2473 2474 return handled; 2475 } 2476 2477 /** 2478 * @hide 2479 */ 2480 public View getAccessibilityFocusedHost() { 2481 return mAccessibilityFocusedHost; 2482 } 2483 2484 /** 2485 * @hide 2486 */ 2487 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2488 return mAccessibilityFocusedVirtualView; 2489 } 2490 2491 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2492 // If we have a virtual view with accessibility focus we need 2493 // to clear the focus and invalidate the virtual view bounds. 2494 if (mAccessibilityFocusedVirtualView != null) { 2495 2496 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2497 View focusHost = mAccessibilityFocusedHost; 2498 focusHost.clearAccessibilityFocusNoCallbacks(); 2499 2500 // Wipe the state of the current accessibility focus since 2501 // the call into the provider to clear accessibility focus 2502 // will fire an accessibility event which will end up calling 2503 // this method and we want to have clean state when this 2504 // invocation happens. 2505 mAccessibilityFocusedHost = null; 2506 mAccessibilityFocusedVirtualView = null; 2507 2508 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2509 if (provider != null) { 2510 // Invalidate the area of the cleared accessibility focus. 2511 focusNode.getBoundsInParent(mTempRect); 2512 focusHost.invalidate(mTempRect); 2513 // Clear accessibility focus in the virtual node. 2514 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2515 focusNode.getSourceNodeId()); 2516 provider.performAction(virtualNodeId, 2517 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2518 } 2519 focusNode.recycle(); 2520 } 2521 if (mAccessibilityFocusedHost != null) { 2522 // Clear accessibility focus in the view. 2523 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2524 } 2525 2526 // Set the new focus host and node. 2527 mAccessibilityFocusedHost = view; 2528 mAccessibilityFocusedVirtualView = node; 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 setAccessibilityFocus(null, 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 mWindowSession.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(mNoncompatDensity, 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 one 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 private final static int MSG_WINDOW_MOVED = 25; 2722 2723 final class ViewRootHandler extends Handler { 2724 @Override 2725 public String getMessageName(Message message) { 2726 switch (message.what) { 2727 case MSG_INVALIDATE: 2728 return "MSG_INVALIDATE"; 2729 case MSG_INVALIDATE_RECT: 2730 return "MSG_INVALIDATE_RECT"; 2731 case MSG_DIE: 2732 return "MSG_DIE"; 2733 case MSG_RESIZED: 2734 return "MSG_RESIZED"; 2735 case MSG_RESIZED_REPORT: 2736 return "MSG_RESIZED_REPORT"; 2737 case MSG_WINDOW_FOCUS_CHANGED: 2738 return "MSG_WINDOW_FOCUS_CHANGED"; 2739 case MSG_DISPATCH_KEY: 2740 return "MSG_DISPATCH_KEY"; 2741 case MSG_DISPATCH_APP_VISIBILITY: 2742 return "MSG_DISPATCH_APP_VISIBILITY"; 2743 case MSG_DISPATCH_GET_NEW_SURFACE: 2744 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2745 case MSG_IME_FINISHED_EVENT: 2746 return "MSG_IME_FINISHED_EVENT"; 2747 case MSG_DISPATCH_KEY_FROM_IME: 2748 return "MSG_DISPATCH_KEY_FROM_IME"; 2749 case MSG_FINISH_INPUT_CONNECTION: 2750 return "MSG_FINISH_INPUT_CONNECTION"; 2751 case MSG_CHECK_FOCUS: 2752 return "MSG_CHECK_FOCUS"; 2753 case MSG_CLOSE_SYSTEM_DIALOGS: 2754 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2755 case MSG_DISPATCH_DRAG_EVENT: 2756 return "MSG_DISPATCH_DRAG_EVENT"; 2757 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2758 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2759 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2760 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2761 case MSG_UPDATE_CONFIGURATION: 2762 return "MSG_UPDATE_CONFIGURATION"; 2763 case MSG_PROCESS_INPUT_EVENTS: 2764 return "MSG_PROCESS_INPUT_EVENTS"; 2765 case MSG_DISPATCH_SCREEN_STATE: 2766 return "MSG_DISPATCH_SCREEN_STATE"; 2767 case MSG_INVALIDATE_DISPLAY_LIST: 2768 return "MSG_INVALIDATE_DISPLAY_LIST"; 2769 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2770 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2771 case MSG_DISPATCH_DONE_ANIMATING: 2772 return "MSG_DISPATCH_DONE_ANIMATING"; 2773 case MSG_WINDOW_MOVED: 2774 return "MSG_WINDOW_MOVED"; 2775 } 2776 return super.getMessageName(message); 2777 } 2778 2779 @Override 2780 public void handleMessage(Message msg) { 2781 switch (msg.what) { 2782 case MSG_INVALIDATE: 2783 ((View) msg.obj).invalidate(); 2784 break; 2785 case MSG_INVALIDATE_RECT: 2786 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2787 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2788 info.release(); 2789 break; 2790 case MSG_IME_FINISHED_EVENT: 2791 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2792 break; 2793 case MSG_PROCESS_INPUT_EVENTS: 2794 mProcessInputEventsScheduled = false; 2795 doProcessInputEvents(); 2796 break; 2797 case MSG_DISPATCH_APP_VISIBILITY: 2798 handleAppVisibility(msg.arg1 != 0); 2799 break; 2800 case MSG_DISPATCH_GET_NEW_SURFACE: 2801 handleGetNewSurface(); 2802 break; 2803 case MSG_RESIZED: { 2804 // Recycled in the fall through... 2805 SomeArgs args = (SomeArgs) msg.obj; 2806 if (mWinFrame.equals((Rect) args.arg1) 2807 && mPendingContentInsets.equals((Rect) args.arg2) 2808 && mPendingVisibleInsets.equals((Rect) args.arg3) 2809 && ((Configuration) args.arg4 == null)) { 2810 break; 2811 } 2812 } // fall through... 2813 case MSG_RESIZED_REPORT: 2814 if (mAdded) { 2815 SomeArgs args = (SomeArgs) msg.obj; 2816 2817 Configuration config = (Configuration) args.arg4; 2818 if (config != null) { 2819 updateConfiguration(config, false); 2820 } 2821 2822 mWinFrame.set((Rect) args.arg1); 2823 mPendingContentInsets.set((Rect) args.arg2); 2824 mPendingVisibleInsets.set((Rect) args.arg3); 2825 2826 args.recycle(); 2827 2828 if (msg.what == MSG_RESIZED_REPORT) { 2829 mReportNextDraw = true; 2830 } 2831 2832 if (mView != null) { 2833 forceLayout(mView); 2834 } 2835 2836 requestLayout(); 2837 } 2838 break; 2839 case MSG_WINDOW_MOVED: 2840 if (mAdded) { 2841 final int w = mWinFrame.width(); 2842 final int h = mWinFrame.height(); 2843 final int l = msg.arg1; 2844 final int t = msg.arg2; 2845 mWinFrame.left = l; 2846 mWinFrame.right = l + w; 2847 mWinFrame.top = t; 2848 mWinFrame.bottom = t + h; 2849 2850 if (mView != null) { 2851 forceLayout(mView); 2852 } 2853 requestLayout(); 2854 } 2855 break; 2856 case MSG_WINDOW_FOCUS_CHANGED: { 2857 if (mAdded) { 2858 boolean hasWindowFocus = msg.arg1 != 0; 2859 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2860 2861 profileRendering(hasWindowFocus); 2862 2863 if (hasWindowFocus) { 2864 boolean inTouchMode = msg.arg2 != 0; 2865 ensureTouchModeLocally(inTouchMode); 2866 2867 if (mAttachInfo.mHardwareRenderer != null && 2868 mSurface != null && mSurface.isValid()) { 2869 mFullRedrawNeeded = true; 2870 try { 2871 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2872 mHolder.getSurface()); 2873 } catch (Surface.OutOfResourcesException e) { 2874 Log.e(TAG, "OutOfResourcesException locking surface", e); 2875 try { 2876 if (!mWindowSession.outOfMemory(mWindow)) { 2877 Slog.w(TAG, "No processes killed for memory; killing self"); 2878 Process.killProcess(Process.myPid()); 2879 } 2880 } catch (RemoteException ex) { 2881 } 2882 // Retry in a bit. 2883 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2884 return; 2885 } 2886 } 2887 } 2888 2889 mLastWasImTarget = WindowManager.LayoutParams 2890 .mayUseInputMethod(mWindowAttributes.flags); 2891 2892 InputMethodManager imm = InputMethodManager.peekInstance(); 2893 if (mView != null) { 2894 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2895 imm.startGettingWindowFocus(mView); 2896 } 2897 mAttachInfo.mKeyDispatchState.reset(); 2898 mView.dispatchWindowFocusChanged(hasWindowFocus); 2899 } 2900 2901 // Note: must be done after the focus change callbacks, 2902 // so all of the view state is set up correctly. 2903 if (hasWindowFocus) { 2904 if (imm != null && mLastWasImTarget) { 2905 imm.onWindowFocus(mView, mView.findFocus(), 2906 mWindowAttributes.softInputMode, 2907 !mHasHadWindowFocus, mWindowAttributes.flags); 2908 } 2909 // Clear the forward bit. We can just do this directly, since 2910 // the window manager doesn't care about it. 2911 mWindowAttributes.softInputMode &= 2912 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2913 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2914 .softInputMode &= 2915 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2916 mHasHadWindowFocus = true; 2917 } 2918 2919 setAccessibilityFocus(null, null); 2920 2921 if (mView != null && mAccessibilityManager.isEnabled()) { 2922 if (hasWindowFocus) { 2923 mView.sendAccessibilityEvent( 2924 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2925 } 2926 } 2927 } 2928 } break; 2929 case MSG_DIE: 2930 doDie(); 2931 break; 2932 case MSG_DISPATCH_KEY: { 2933 KeyEvent event = (KeyEvent)msg.obj; 2934 enqueueInputEvent(event, null, 0, true); 2935 } break; 2936 case MSG_DISPATCH_KEY_FROM_IME: { 2937 if (LOCAL_LOGV) Log.v( 2938 TAG, "Dispatching key " 2939 + msg.obj + " from IME to " + mView); 2940 KeyEvent event = (KeyEvent)msg.obj; 2941 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2942 // The IME is trying to say this event is from the 2943 // system! Bad bad bad! 2944 //noinspection UnusedAssignment 2945 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2946 } 2947 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2948 } break; 2949 case MSG_FINISH_INPUT_CONNECTION: { 2950 InputMethodManager imm = InputMethodManager.peekInstance(); 2951 if (imm != null) { 2952 imm.reportFinishInputConnection((InputConnection)msg.obj); 2953 } 2954 } break; 2955 case MSG_CHECK_FOCUS: { 2956 InputMethodManager imm = InputMethodManager.peekInstance(); 2957 if (imm != null) { 2958 imm.checkFocus(); 2959 } 2960 } break; 2961 case MSG_CLOSE_SYSTEM_DIALOGS: { 2962 if (mView != null) { 2963 mView.onCloseSystemDialogs((String)msg.obj); 2964 } 2965 } break; 2966 case MSG_DISPATCH_DRAG_EVENT: 2967 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2968 DragEvent event = (DragEvent)msg.obj; 2969 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2970 handleDragEvent(event); 2971 } break; 2972 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2973 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2974 } break; 2975 case MSG_UPDATE_CONFIGURATION: { 2976 Configuration config = (Configuration)msg.obj; 2977 if (config.isOtherSeqNewer(mLastConfiguration)) { 2978 config = mLastConfiguration; 2979 } 2980 updateConfiguration(config, false); 2981 } break; 2982 case MSG_DISPATCH_SCREEN_STATE: { 2983 if (mView != null) { 2984 handleScreenStateChange(msg.arg1 == 1); 2985 } 2986 } break; 2987 case MSG_INVALIDATE_DISPLAY_LIST: { 2988 invalidateDisplayLists(); 2989 } break; 2990 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2991 setAccessibilityFocus(null, null); 2992 } break; 2993 case MSG_DISPATCH_DONE_ANIMATING: { 2994 handleDispatchDoneAnimating(); 2995 } break; 2996 case MSG_INVALIDATE_WORLD: { 2997 invalidateWorld(mView); 2998 } break; 2999 } 3000 } 3001 } 3002 3003 final ViewRootHandler mHandler = new ViewRootHandler(); 3004 3005 /** 3006 * Something in the current window tells us we need to change the touch mode. For 3007 * example, we are not in touch mode, and the user touches the screen. 3008 * 3009 * If the touch mode has changed, tell the window manager, and handle it locally. 3010 * 3011 * @param inTouchMode Whether we want to be in touch mode. 3012 * @return True if the touch mode changed and focus changed was changed as a result 3013 */ 3014 boolean ensureTouchMode(boolean inTouchMode) { 3015 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3016 + "touch mode is " + mAttachInfo.mInTouchMode); 3017 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3018 3019 // tell the window manager 3020 try { 3021 mWindowSession.setInTouchMode(inTouchMode); 3022 } catch (RemoteException e) { 3023 throw new RuntimeException(e); 3024 } 3025 3026 // handle the change 3027 return ensureTouchModeLocally(inTouchMode); 3028 } 3029 3030 /** 3031 * Ensure that the touch mode for this window is set, and if it is changing, 3032 * take the appropriate action. 3033 * @param inTouchMode Whether we want to be in touch mode. 3034 * @return True if the touch mode changed and focus changed was changed as a result 3035 */ 3036 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3037 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3038 + "touch mode is " + mAttachInfo.mInTouchMode); 3039 3040 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3041 3042 mAttachInfo.mInTouchMode = inTouchMode; 3043 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3044 3045 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3046 } 3047 3048 private boolean enterTouchMode() { 3049 if (mView != null) { 3050 if (mView.hasFocus()) { 3051 // note: not relying on mFocusedView here because this could 3052 // be when the window is first being added, and mFocused isn't 3053 // set yet. 3054 final View focused = mView.findFocus(); 3055 if (focused != null && !focused.isFocusableInTouchMode()) { 3056 3057 final ViewGroup ancestorToTakeFocus = 3058 findAncestorToTakeFocusInTouchMode(focused); 3059 if (ancestorToTakeFocus != null) { 3060 // there is an ancestor that wants focus after its descendants that 3061 // is focusable in touch mode.. give it focus 3062 return ancestorToTakeFocus.requestFocus(); 3063 } else { 3064 // nothing appropriate to have focus in touch mode, clear it out 3065 mView.unFocus(); 3066 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3067 mFocusedView = null; 3068 mOldFocusedView = null; 3069 return true; 3070 } 3071 } 3072 } 3073 } 3074 return false; 3075 } 3076 3077 /** 3078 * Find an ancestor of focused that wants focus after its descendants and is 3079 * focusable in touch mode. 3080 * @param focused The currently focused view. 3081 * @return An appropriate view, or null if no such view exists. 3082 */ 3083 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3084 ViewParent parent = focused.getParent(); 3085 while (parent instanceof ViewGroup) { 3086 final ViewGroup vgParent = (ViewGroup) parent; 3087 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3088 && vgParent.isFocusableInTouchMode()) { 3089 return vgParent; 3090 } 3091 if (vgParent.isRootNamespace()) { 3092 return null; 3093 } else { 3094 parent = vgParent.getParent(); 3095 } 3096 } 3097 return null; 3098 } 3099 3100 private boolean leaveTouchMode() { 3101 if (mView != null) { 3102 if (mView.hasFocus()) { 3103 // i learned the hard way to not trust mFocusedView :) 3104 mFocusedView = mView.findFocus(); 3105 if (!(mFocusedView instanceof ViewGroup)) { 3106 // some view has focus, let it keep it 3107 return false; 3108 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3109 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3110 // some view group has focus, and doesn't prefer its children 3111 // over itself for focus, so let them keep it. 3112 return false; 3113 } 3114 } 3115 3116 // find the best view to give focus to in this brave new non-touch-mode 3117 // world 3118 final View focused = focusSearch(null, View.FOCUS_DOWN); 3119 if (focused != null) { 3120 return focused.requestFocus(View.FOCUS_DOWN); 3121 } 3122 } 3123 return false; 3124 } 3125 3126 private void deliverInputEvent(QueuedInputEvent q) { 3127 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3128 try { 3129 if (q.mEvent instanceof KeyEvent) { 3130 deliverKeyEvent(q); 3131 } else { 3132 final int source = q.mEvent.getSource(); 3133 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3134 deliverPointerEvent(q); 3135 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3136 deliverTrackballEvent(q); 3137 } else { 3138 deliverGenericMotionEvent(q); 3139 } 3140 } 3141 } finally { 3142 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3143 } 3144 } 3145 3146 private void deliverPointerEvent(QueuedInputEvent q) { 3147 final MotionEvent event = (MotionEvent)q.mEvent; 3148 final boolean isTouchEvent = event.isTouchEvent(); 3149 if (mInputEventConsistencyVerifier != null) { 3150 if (isTouchEvent) { 3151 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3152 } else { 3153 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3154 } 3155 } 3156 3157 // If there is no view, then the event will not be handled. 3158 if (mView == null || !mAdded) { 3159 finishInputEvent(q, false); 3160 return; 3161 } 3162 3163 // Translate the pointer event for compatibility, if needed. 3164 if (mTranslator != null) { 3165 mTranslator.translateEventInScreenToAppWindow(event); 3166 } 3167 3168 // Enter touch mode on down or scroll. 3169 final int action = event.getAction(); 3170 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3171 ensureTouchMode(true); 3172 } 3173 3174 // Offset the scroll position. 3175 if (mCurScrollY != 0) { 3176 event.offsetLocation(0, mCurScrollY); 3177 } 3178 if (MEASURE_LATENCY) { 3179 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3180 } 3181 3182 // Remember the touch position for possible drag-initiation. 3183 if (isTouchEvent) { 3184 mLastTouchPoint.x = event.getRawX(); 3185 mLastTouchPoint.y = event.getRawY(); 3186 } 3187 3188 // Dispatch touch to view hierarchy. 3189 boolean handled = mView.dispatchPointerEvent(event); 3190 if (MEASURE_LATENCY) { 3191 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3192 } 3193 if (handled) { 3194 finishInputEvent(q, true); 3195 return; 3196 } 3197 3198 // Pointer event was unhandled. 3199 finishInputEvent(q, false); 3200 } 3201 3202 private void deliverTrackballEvent(QueuedInputEvent q) { 3203 final MotionEvent event = (MotionEvent)q.mEvent; 3204 if (mInputEventConsistencyVerifier != null) { 3205 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3206 } 3207 3208 // If there is no view, then the event will not be handled. 3209 if (mView == null || !mAdded) { 3210 finishInputEvent(q, false); 3211 return; 3212 } 3213 3214 // Deliver the trackball event to the view. 3215 if (mView.dispatchTrackballEvent(event)) { 3216 // If we reach this, we delivered a trackball event to mView and 3217 // mView consumed it. Because we will not translate the trackball 3218 // event into a key event, touch mode will not exit, so we exit 3219 // touch mode here. 3220 ensureTouchMode(false); 3221 3222 finishInputEvent(q, true); 3223 mLastTrackballTime = Integer.MIN_VALUE; 3224 return; 3225 } 3226 3227 // Translate the trackball event into DPAD keys and try to deliver those. 3228 final TrackballAxis x = mTrackballAxisX; 3229 final TrackballAxis y = mTrackballAxisY; 3230 3231 long curTime = SystemClock.uptimeMillis(); 3232 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3233 // It has been too long since the last movement, 3234 // so restart at the beginning. 3235 x.reset(0); 3236 y.reset(0); 3237 mLastTrackballTime = curTime; 3238 } 3239 3240 final int action = event.getAction(); 3241 final int metaState = event.getMetaState(); 3242 switch (action) { 3243 case MotionEvent.ACTION_DOWN: 3244 x.reset(2); 3245 y.reset(2); 3246 enqueueInputEvent(new KeyEvent(curTime, curTime, 3247 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3248 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3249 InputDevice.SOURCE_KEYBOARD)); 3250 break; 3251 case MotionEvent.ACTION_UP: 3252 x.reset(2); 3253 y.reset(2); 3254 enqueueInputEvent(new KeyEvent(curTime, curTime, 3255 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3256 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3257 InputDevice.SOURCE_KEYBOARD)); 3258 break; 3259 } 3260 3261 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3262 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3263 + " move=" + event.getX() 3264 + " / Y=" + y.position + " step=" 3265 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3266 + " move=" + event.getY()); 3267 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3268 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3269 3270 // Generate DPAD events based on the trackball movement. 3271 // We pick the axis that has moved the most as the direction of 3272 // the DPAD. When we generate DPAD events for one axis, then the 3273 // other axis is reset -- we don't want to perform DPAD jumps due 3274 // to slight movements in the trackball when making major movements 3275 // along the other axis. 3276 int keycode = 0; 3277 int movement = 0; 3278 float accel = 1; 3279 if (xOff > yOff) { 3280 movement = x.generate((2/event.getXPrecision())); 3281 if (movement != 0) { 3282 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3283 : KeyEvent.KEYCODE_DPAD_LEFT; 3284 accel = x.acceleration; 3285 y.reset(2); 3286 } 3287 } else if (yOff > 0) { 3288 movement = y.generate((2/event.getYPrecision())); 3289 if (movement != 0) { 3290 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3291 : KeyEvent.KEYCODE_DPAD_UP; 3292 accel = y.acceleration; 3293 x.reset(2); 3294 } 3295 } 3296 3297 if (keycode != 0) { 3298 if (movement < 0) movement = -movement; 3299 int accelMovement = (int)(movement * accel); 3300 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3301 + " accelMovement=" + accelMovement 3302 + " accel=" + accel); 3303 if (accelMovement > movement) { 3304 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3305 + keycode); 3306 movement--; 3307 int repeatCount = accelMovement - movement; 3308 enqueueInputEvent(new KeyEvent(curTime, curTime, 3309 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3310 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3311 InputDevice.SOURCE_KEYBOARD)); 3312 } 3313 while (movement > 0) { 3314 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3315 + keycode); 3316 movement--; 3317 curTime = SystemClock.uptimeMillis(); 3318 enqueueInputEvent(new KeyEvent(curTime, curTime, 3319 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3320 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3321 InputDevice.SOURCE_KEYBOARD)); 3322 enqueueInputEvent(new KeyEvent(curTime, curTime, 3323 KeyEvent.ACTION_UP, keycode, 0, metaState, 3324 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3325 InputDevice.SOURCE_KEYBOARD)); 3326 } 3327 mLastTrackballTime = curTime; 3328 } 3329 3330 // Unfortunately we can't tell whether the application consumed the keys, so 3331 // we always consider the trackball event handled. 3332 finishInputEvent(q, true); 3333 } 3334 3335 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3336 final MotionEvent event = (MotionEvent)q.mEvent; 3337 if (mInputEventConsistencyVerifier != null) { 3338 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3339 } 3340 3341 final int source = event.getSource(); 3342 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3343 3344 // If there is no view, then the event will not be handled. 3345 if (mView == null || !mAdded) { 3346 if (isJoystick) { 3347 updateJoystickDirection(event, false); 3348 } 3349 finishInputEvent(q, false); 3350 return; 3351 } 3352 3353 // Deliver the event to the view. 3354 if (mView.dispatchGenericMotionEvent(event)) { 3355 if (isJoystick) { 3356 updateJoystickDirection(event, false); 3357 } 3358 finishInputEvent(q, true); 3359 return; 3360 } 3361 3362 if (isJoystick) { 3363 // Translate the joystick event into DPAD keys and try to deliver those. 3364 updateJoystickDirection(event, true); 3365 finishInputEvent(q, true); 3366 } else { 3367 finishInputEvent(q, false); 3368 } 3369 } 3370 3371 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3372 final long time = event.getEventTime(); 3373 final int metaState = event.getMetaState(); 3374 final int deviceId = event.getDeviceId(); 3375 final int source = event.getSource(); 3376 3377 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3378 if (xDirection == 0) { 3379 xDirection = joystickAxisValueToDirection(event.getX()); 3380 } 3381 3382 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3383 if (yDirection == 0) { 3384 yDirection = joystickAxisValueToDirection(event.getY()); 3385 } 3386 3387 if (xDirection != mLastJoystickXDirection) { 3388 if (mLastJoystickXKeyCode != 0) { 3389 enqueueInputEvent(new KeyEvent(time, time, 3390 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3391 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3392 mLastJoystickXKeyCode = 0; 3393 } 3394 3395 mLastJoystickXDirection = xDirection; 3396 3397 if (xDirection != 0 && synthesizeNewKeys) { 3398 mLastJoystickXKeyCode = xDirection > 0 3399 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3400 enqueueInputEvent(new KeyEvent(time, time, 3401 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3402 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3403 } 3404 } 3405 3406 if (yDirection != mLastJoystickYDirection) { 3407 if (mLastJoystickYKeyCode != 0) { 3408 enqueueInputEvent(new KeyEvent(time, time, 3409 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3410 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3411 mLastJoystickYKeyCode = 0; 3412 } 3413 3414 mLastJoystickYDirection = yDirection; 3415 3416 if (yDirection != 0 && synthesizeNewKeys) { 3417 mLastJoystickYKeyCode = yDirection > 0 3418 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3419 enqueueInputEvent(new KeyEvent(time, time, 3420 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3421 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3422 } 3423 } 3424 } 3425 3426 private static int joystickAxisValueToDirection(float value) { 3427 if (value >= 0.5f) { 3428 return 1; 3429 } else if (value <= -0.5f) { 3430 return -1; 3431 } else { 3432 return 0; 3433 } 3434 } 3435 3436 /** 3437 * Returns true if the key is used for keyboard navigation. 3438 * @param keyEvent The key event. 3439 * @return True if the key is used for keyboard navigation. 3440 */ 3441 private static boolean isNavigationKey(KeyEvent keyEvent) { 3442 switch (keyEvent.getKeyCode()) { 3443 case KeyEvent.KEYCODE_DPAD_LEFT: 3444 case KeyEvent.KEYCODE_DPAD_RIGHT: 3445 case KeyEvent.KEYCODE_DPAD_UP: 3446 case KeyEvent.KEYCODE_DPAD_DOWN: 3447 case KeyEvent.KEYCODE_DPAD_CENTER: 3448 case KeyEvent.KEYCODE_PAGE_UP: 3449 case KeyEvent.KEYCODE_PAGE_DOWN: 3450 case KeyEvent.KEYCODE_MOVE_HOME: 3451 case KeyEvent.KEYCODE_MOVE_END: 3452 case KeyEvent.KEYCODE_TAB: 3453 case KeyEvent.KEYCODE_SPACE: 3454 case KeyEvent.KEYCODE_ENTER: 3455 return true; 3456 } 3457 return false; 3458 } 3459 3460 /** 3461 * Returns true if the key is used for typing. 3462 * @param keyEvent The key event. 3463 * @return True if the key is used for typing. 3464 */ 3465 private static boolean isTypingKey(KeyEvent keyEvent) { 3466 return keyEvent.getUnicodeChar() > 0; 3467 } 3468 3469 /** 3470 * See if the key event means we should leave touch mode (and leave touch mode if so). 3471 * @param event The key event. 3472 * @return Whether this key event should be consumed (meaning the act of 3473 * leaving touch mode alone is considered the event). 3474 */ 3475 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3476 // Only relevant in touch mode. 3477 if (!mAttachInfo.mInTouchMode) { 3478 return false; 3479 } 3480 3481 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3482 final int action = event.getAction(); 3483 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3484 return false; 3485 } 3486 3487 // Don't leave touch mode if the IME told us not to. 3488 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3489 return false; 3490 } 3491 3492 // If the key can be used for keyboard navigation then leave touch mode 3493 // and select a focused view if needed (in ensureTouchMode). 3494 // When a new focused view is selected, we consume the navigation key because 3495 // navigation doesn't make much sense unless a view already has focus so 3496 // the key's purpose is to set focus. 3497 if (isNavigationKey(event)) { 3498 return ensureTouchMode(false); 3499 } 3500 3501 // If the key can be used for typing then leave touch mode 3502 // and select a focused view if needed (in ensureTouchMode). 3503 // Always allow the view to process the typing key. 3504 if (isTypingKey(event)) { 3505 ensureTouchMode(false); 3506 return false; 3507 } 3508 3509 return false; 3510 } 3511 3512 private void deliverKeyEvent(QueuedInputEvent q) { 3513 final KeyEvent event = (KeyEvent)q.mEvent; 3514 if (mInputEventConsistencyVerifier != null) { 3515 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3516 } 3517 3518 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3519 // If there is no view, then the event will not be handled. 3520 if (mView == null || !mAdded) { 3521 finishInputEvent(q, false); 3522 return; 3523 } 3524 3525 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3526 3527 // Perform predispatching before the IME. 3528 if (mView.dispatchKeyEventPreIme(event)) { 3529 finishInputEvent(q, true); 3530 return; 3531 } 3532 3533 // Dispatch to the IME before propagating down the view hierarchy. 3534 // The IME will eventually call back into handleImeFinishedEvent. 3535 if (mLastWasImTarget) { 3536 InputMethodManager imm = InputMethodManager.peekInstance(); 3537 if (imm != null) { 3538 final int seq = event.getSequenceNumber(); 3539 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3540 + seq + " event=" + event); 3541 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3542 return; 3543 } 3544 } 3545 } 3546 3547 // Not dispatching to IME, continue with post IME actions. 3548 deliverKeyEventPostIme(q); 3549 } 3550 3551 void handleImeFinishedEvent(int seq, boolean handled) { 3552 final QueuedInputEvent q = mCurrentInputEvent; 3553 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3554 final KeyEvent event = (KeyEvent)q.mEvent; 3555 if (DEBUG_IMF) { 3556 Log.v(TAG, "IME finished event: seq=" + seq 3557 + " handled=" + handled + " event=" + event); 3558 } 3559 if (handled) { 3560 finishInputEvent(q, true); 3561 } else { 3562 deliverKeyEventPostIme(q); 3563 } 3564 } else { 3565 if (DEBUG_IMF) { 3566 Log.v(TAG, "IME finished event: seq=" + seq 3567 + " handled=" + handled + ", event not found!"); 3568 } 3569 } 3570 } 3571 3572 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3573 final KeyEvent event = (KeyEvent)q.mEvent; 3574 3575 // If the view went away, then the event will not be handled. 3576 if (mView == null || !mAdded) { 3577 finishInputEvent(q, false); 3578 return; 3579 } 3580 3581 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3582 if (checkForLeavingTouchModeAndConsume(event)) { 3583 finishInputEvent(q, true); 3584 return; 3585 } 3586 3587 // Make sure the fallback event policy sees all keys that will be delivered to the 3588 // view hierarchy. 3589 mFallbackEventHandler.preDispatchKeyEvent(event); 3590 3591 // Deliver the key to the view hierarchy. 3592 if (mView.dispatchKeyEvent(event)) { 3593 finishInputEvent(q, true); 3594 return; 3595 } 3596 3597 // If the Control modifier is held, try to interpret the key as a shortcut. 3598 if (event.getAction() == KeyEvent.ACTION_DOWN 3599 && event.isCtrlPressed() 3600 && event.getRepeatCount() == 0 3601 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3602 if (mView.dispatchKeyShortcutEvent(event)) { 3603 finishInputEvent(q, true); 3604 return; 3605 } 3606 } 3607 3608 // Apply the fallback event policy. 3609 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3610 finishInputEvent(q, true); 3611 return; 3612 } 3613 3614 // Handle automatic focus changes. 3615 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3616 int direction = 0; 3617 switch (event.getKeyCode()) { 3618 case KeyEvent.KEYCODE_DPAD_LEFT: 3619 if (event.hasNoModifiers()) { 3620 direction = View.FOCUS_LEFT; 3621 } 3622 break; 3623 case KeyEvent.KEYCODE_DPAD_RIGHT: 3624 if (event.hasNoModifiers()) { 3625 direction = View.FOCUS_RIGHT; 3626 } 3627 break; 3628 case KeyEvent.KEYCODE_DPAD_UP: 3629 if (event.hasNoModifiers()) { 3630 direction = View.FOCUS_UP; 3631 } 3632 break; 3633 case KeyEvent.KEYCODE_DPAD_DOWN: 3634 if (event.hasNoModifiers()) { 3635 direction = View.FOCUS_DOWN; 3636 } 3637 break; 3638 case KeyEvent.KEYCODE_TAB: 3639 if (event.hasNoModifiers()) { 3640 direction = View.FOCUS_FORWARD; 3641 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3642 direction = View.FOCUS_BACKWARD; 3643 } 3644 break; 3645 } 3646 if (direction != 0) { 3647 View focused = mView.findFocus(); 3648 if (focused != null) { 3649 View v = focused.focusSearch(direction); 3650 if (v != null && v != focused) { 3651 // do the math the get the interesting rect 3652 // of previous focused into the coord system of 3653 // newly focused view 3654 focused.getFocusedRect(mTempRect); 3655 if (mView instanceof ViewGroup) { 3656 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3657 focused, mTempRect); 3658 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3659 v, mTempRect); 3660 } 3661 if (v.requestFocus(direction, mTempRect)) { 3662 playSoundEffect(SoundEffectConstants 3663 .getContantForFocusDirection(direction)); 3664 finishInputEvent(q, true); 3665 return; 3666 } 3667 } 3668 3669 // Give the focused view a last chance to handle the dpad key. 3670 if (mView.dispatchUnhandledMove(focused, direction)) { 3671 finishInputEvent(q, true); 3672 return; 3673 } 3674 } 3675 } 3676 } 3677 3678 // Key was unhandled. 3679 finishInputEvent(q, false); 3680 } 3681 3682 /* drag/drop */ 3683 void setLocalDragState(Object obj) { 3684 mLocalDragState = obj; 3685 } 3686 3687 private void handleDragEvent(DragEvent event) { 3688 // From the root, only drag start/end/location are dispatched. entered/exited 3689 // are determined and dispatched by the viewgroup hierarchy, who then report 3690 // that back here for ultimate reporting back to the framework. 3691 if (mView != null && mAdded) { 3692 final int what = event.mAction; 3693 3694 if (what == DragEvent.ACTION_DRAG_EXITED) { 3695 // A direct EXITED event means that the window manager knows we've just crossed 3696 // a window boundary, so the current drag target within this one must have 3697 // just been exited. Send it the usual notifications and then we're done 3698 // for now. 3699 mView.dispatchDragEvent(event); 3700 } else { 3701 // Cache the drag description when the operation starts, then fill it in 3702 // on subsequent calls as a convenience 3703 if (what == DragEvent.ACTION_DRAG_STARTED) { 3704 mCurrentDragView = null; // Start the current-recipient tracking 3705 mDragDescription = event.mClipDescription; 3706 } else { 3707 event.mClipDescription = mDragDescription; 3708 } 3709 3710 // For events with a [screen] location, translate into window coordinates 3711 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3712 mDragPoint.set(event.mX, event.mY); 3713 if (mTranslator != null) { 3714 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3715 } 3716 3717 if (mCurScrollY != 0) { 3718 mDragPoint.offset(0, mCurScrollY); 3719 } 3720 3721 event.mX = mDragPoint.x; 3722 event.mY = mDragPoint.y; 3723 } 3724 3725 // Remember who the current drag target is pre-dispatch 3726 final View prevDragView = mCurrentDragView; 3727 3728 // Now dispatch the drag/drop event 3729 boolean result = mView.dispatchDragEvent(event); 3730 3731 // If we changed apparent drag target, tell the OS about it 3732 if (prevDragView != mCurrentDragView) { 3733 try { 3734 if (prevDragView != null) { 3735 mWindowSession.dragRecipientExited(mWindow); 3736 } 3737 if (mCurrentDragView != null) { 3738 mWindowSession.dragRecipientEntered(mWindow); 3739 } 3740 } catch (RemoteException e) { 3741 Slog.e(TAG, "Unable to note drag target change"); 3742 } 3743 } 3744 3745 // Report the drop result when we're done 3746 if (what == DragEvent.ACTION_DROP) { 3747 mDragDescription = null; 3748 try { 3749 Log.i(TAG, "Reporting drop result: " + result); 3750 mWindowSession.reportDropResult(mWindow, result); 3751 } catch (RemoteException e) { 3752 Log.e(TAG, "Unable to report drop result"); 3753 } 3754 } 3755 3756 // When the drag operation ends, release any local state object 3757 // that may have been in use 3758 if (what == DragEvent.ACTION_DRAG_ENDED) { 3759 setLocalDragState(null); 3760 } 3761 } 3762 } 3763 event.recycle(); 3764 } 3765 3766 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3767 if (mSeq != args.seq) { 3768 // The sequence has changed, so we need to update our value and make 3769 // sure to do a traversal afterward so the window manager is given our 3770 // most recent data. 3771 mSeq = args.seq; 3772 mAttachInfo.mForceReportNewAttributes = true; 3773 scheduleTraversals(); 3774 } 3775 if (mView == null) return; 3776 if (args.localChanges != 0) { 3777 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3778 } 3779 if (mAttachInfo != null) { 3780 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3781 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3782 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3783 mView.dispatchSystemUiVisibilityChanged(visibility); 3784 } 3785 } 3786 } 3787 3788 public void handleDispatchDoneAnimating() { 3789 if (mWindowsAnimating) { 3790 mWindowsAnimating = false; 3791 if (!mDirty.isEmpty() || mIsAnimating) { 3792 scheduleTraversals(); 3793 } 3794 } 3795 } 3796 3797 public void getLastTouchPoint(Point outLocation) { 3798 outLocation.x = (int) mLastTouchPoint.x; 3799 outLocation.y = (int) mLastTouchPoint.y; 3800 } 3801 3802 public void setDragFocus(View newDragTarget) { 3803 if (mCurrentDragView != newDragTarget) { 3804 mCurrentDragView = newDragTarget; 3805 } 3806 } 3807 3808 private AudioManager getAudioManager() { 3809 if (mView == null) { 3810 throw new IllegalStateException("getAudioManager called when there is no mView"); 3811 } 3812 if (mAudioManager == null) { 3813 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3814 } 3815 return mAudioManager; 3816 } 3817 3818 public AccessibilityInteractionController getAccessibilityInteractionController() { 3819 if (mView == null) { 3820 throw new IllegalStateException("getAccessibilityInteractionController" 3821 + " called when there is no mView"); 3822 } 3823 if (mAccessibilityInteractionController == null) { 3824 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3825 } 3826 return mAccessibilityInteractionController; 3827 } 3828 3829 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3830 boolean insetsPending) throws RemoteException { 3831 3832 float appScale = mAttachInfo.mApplicationScale; 3833 boolean restore = false; 3834 if (params != null && mTranslator != null) { 3835 restore = true; 3836 params.backup(); 3837 mTranslator.translateWindowLayout(params); 3838 } 3839 if (params != null) { 3840 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3841 } 3842 mPendingConfiguration.seq = 0; 3843 //Log.d(TAG, ">>>>>> CALLING relayout"); 3844 if (params != null && mOrigWindowType != params.type) { 3845 // For compatibility with old apps, don't crash here. 3846 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3847 Slog.w(TAG, "Window type can not be changed after " 3848 + "the window is added; ignoring change of " + mView); 3849 params.type = mOrigWindowType; 3850 } 3851 } 3852 int relayoutResult = mWindowSession.relayout( 3853 mWindow, mSeq, params, 3854 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3855 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3856 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3857 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3858 mPendingConfiguration, mSurface); 3859 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3860 if (restore) { 3861 params.restore(); 3862 } 3863 3864 if (mTranslator != null) { 3865 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3866 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3867 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3868 } 3869 return relayoutResult; 3870 } 3871 3872 /** 3873 * {@inheritDoc} 3874 */ 3875 public void playSoundEffect(int effectId) { 3876 checkThread(); 3877 3878 try { 3879 final AudioManager audioManager = getAudioManager(); 3880 3881 switch (effectId) { 3882 case SoundEffectConstants.CLICK: 3883 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3884 return; 3885 case SoundEffectConstants.NAVIGATION_DOWN: 3886 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3887 return; 3888 case SoundEffectConstants.NAVIGATION_LEFT: 3889 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3890 return; 3891 case SoundEffectConstants.NAVIGATION_RIGHT: 3892 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3893 return; 3894 case SoundEffectConstants.NAVIGATION_UP: 3895 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3896 return; 3897 default: 3898 throw new IllegalArgumentException("unknown effect id " + effectId + 3899 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3900 } 3901 } catch (IllegalStateException e) { 3902 // Exception thrown by getAudioManager() when mView is null 3903 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3904 e.printStackTrace(); 3905 } 3906 } 3907 3908 /** 3909 * {@inheritDoc} 3910 */ 3911 public boolean performHapticFeedback(int effectId, boolean always) { 3912 try { 3913 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 3914 } catch (RemoteException e) { 3915 return false; 3916 } 3917 } 3918 3919 /** 3920 * {@inheritDoc} 3921 */ 3922 public View focusSearch(View focused, int direction) { 3923 checkThread(); 3924 if (!(mView instanceof ViewGroup)) { 3925 return null; 3926 } 3927 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3928 } 3929 3930 public void debug() { 3931 mView.debug(); 3932 } 3933 3934 public void dumpGfxInfo(int[] info) { 3935 info[0] = info[1] = 0; 3936 if (mView != null) { 3937 getGfxInfo(mView, info); 3938 } 3939 } 3940 3941 private static void getGfxInfo(View view, int[] info) { 3942 DisplayList displayList = view.mDisplayList; 3943 info[0]++; 3944 if (displayList != null) { 3945 info[1] += displayList.getSize(); 3946 } 3947 3948 if (view instanceof ViewGroup) { 3949 ViewGroup group = (ViewGroup) view; 3950 3951 int count = group.getChildCount(); 3952 for (int i = 0; i < count; i++) { 3953 getGfxInfo(group.getChildAt(i), info); 3954 } 3955 } 3956 } 3957 3958 public void die(boolean immediate) { 3959 if (immediate) { 3960 doDie(); 3961 } else { 3962 if (!mIsDrawing) { 3963 destroyHardwareRenderer(); 3964 } else { 3965 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3966 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3967 } 3968 mHandler.sendEmptyMessage(MSG_DIE); 3969 } 3970 } 3971 3972 void doDie() { 3973 checkThread(); 3974 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3975 synchronized (this) { 3976 if (mAdded) { 3977 dispatchDetachedFromWindow(); 3978 } 3979 3980 if (mAdded && !mFirst) { 3981 destroyHardwareRenderer(); 3982 3983 if (mView != null) { 3984 int viewVisibility = mView.getVisibility(); 3985 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3986 if (mWindowAttributesChanged || viewVisibilityChanged) { 3987 // If layout params have been changed, first give them 3988 // to the window manager to make sure it has the correct 3989 // animation info. 3990 try { 3991 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3992 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 3993 mWindowSession.finishDrawing(mWindow); 3994 } 3995 } catch (RemoteException e) { 3996 } 3997 } 3998 3999 mSurface.release(); 4000 } 4001 } 4002 4003 mAdded = false; 4004 } 4005 } 4006 4007 public void requestUpdateConfiguration(Configuration config) { 4008 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4009 mHandler.sendMessage(msg); 4010 } 4011 4012 public void loadSystemProperties() { 4013 boolean layout = SystemProperties.getBoolean( 4014 View.DEBUG_LAYOUT_PROPERTY, false); 4015 if (layout != mAttachInfo.mDebugLayout) { 4016 mAttachInfo.mDebugLayout = layout; 4017 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4018 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4019 } 4020 } 4021 } 4022 4023 private void destroyHardwareRenderer() { 4024 AttachInfo attachInfo = mAttachInfo; 4025 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4026 4027 if (hardwareRenderer != null) { 4028 if (mView != null) { 4029 hardwareRenderer.destroyHardwareResources(mView); 4030 } 4031 hardwareRenderer.destroy(true); 4032 hardwareRenderer.setRequested(false); 4033 4034 attachInfo.mHardwareRenderer = null; 4035 attachInfo.mHardwareAccelerated = false; 4036 } 4037 } 4038 4039 void dispatchImeFinishedEvent(int seq, boolean handled) { 4040 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4041 msg.arg1 = seq; 4042 msg.arg2 = handled ? 1 : 0; 4043 msg.setAsynchronous(true); 4044 mHandler.sendMessage(msg); 4045 } 4046 4047 public void dispatchFinishInputConnection(InputConnection connection) { 4048 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4049 mHandler.sendMessage(msg); 4050 } 4051 4052 public void dispatchResized(Rect frame, Rect contentInsets, 4053 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4054 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4055 + " contentInsets=" + contentInsets.toShortString() 4056 + " visibleInsets=" + visibleInsets.toShortString() 4057 + " reportDraw=" + reportDraw); 4058 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4059 if (mTranslator != null) { 4060 mTranslator.translateRectInScreenToAppWindow(frame); 4061 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4062 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4063 } 4064 SomeArgs args = SomeArgs.obtain(); 4065 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4066 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4067 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4068 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4069 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4070 msg.obj = args; 4071 mHandler.sendMessage(msg); 4072 } 4073 4074 public void dispatchMoved(int newX, int newY) { 4075 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4076 if (mTranslator != null) { 4077 PointF point = new PointF(newX, newY); 4078 mTranslator.translatePointInScreenToAppWindow(point); 4079 newX = (int) (point.x + 0.5); 4080 newY = (int) (point.y + 0.5); 4081 } 4082 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4083 mHandler.sendMessage(msg); 4084 } 4085 4086 /** 4087 * Represents a pending input event that is waiting in a queue. 4088 * 4089 * Input events are processed in serial order by the timestamp specified by 4090 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4091 * one input event to the application at a time and waits for the application 4092 * to finish handling it before delivering the next one. 4093 * 4094 * However, because the application or IME can synthesize and inject multiple 4095 * key events at a time without going through the input dispatcher, we end up 4096 * needing a queue on the application's side. 4097 */ 4098 private static final class QueuedInputEvent { 4099 public static final int FLAG_DELIVER_POST_IME = 1; 4100 4101 public QueuedInputEvent mNext; 4102 4103 public InputEvent mEvent; 4104 public InputEventReceiver mReceiver; 4105 public int mFlags; 4106 } 4107 4108 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4109 InputEventReceiver receiver, int flags) { 4110 QueuedInputEvent q = mQueuedInputEventPool; 4111 if (q != null) { 4112 mQueuedInputEventPoolSize -= 1; 4113 mQueuedInputEventPool = q.mNext; 4114 q.mNext = null; 4115 } else { 4116 q = new QueuedInputEvent(); 4117 } 4118 4119 q.mEvent = event; 4120 q.mReceiver = receiver; 4121 q.mFlags = flags; 4122 return q; 4123 } 4124 4125 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4126 q.mEvent = null; 4127 q.mReceiver = null; 4128 4129 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4130 mQueuedInputEventPoolSize += 1; 4131 q.mNext = mQueuedInputEventPool; 4132 mQueuedInputEventPool = q; 4133 } 4134 } 4135 4136 void enqueueInputEvent(InputEvent event) { 4137 enqueueInputEvent(event, null, 0, false); 4138 } 4139 4140 void enqueueInputEvent(InputEvent event, 4141 InputEventReceiver receiver, int flags, boolean processImmediately) { 4142 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4143 4144 // Always enqueue the input event in order, regardless of its time stamp. 4145 // We do this because the application or the IME may inject key events 4146 // in response to touch events and we want to ensure that the injected keys 4147 // are processed in the order they were received and we cannot trust that 4148 // the time stamp of injected events are monotonic. 4149 QueuedInputEvent last = mFirstPendingInputEvent; 4150 if (last == null) { 4151 mFirstPendingInputEvent = q; 4152 } else { 4153 while (last.mNext != null) { 4154 last = last.mNext; 4155 } 4156 last.mNext = q; 4157 } 4158 4159 if (processImmediately) { 4160 doProcessInputEvents(); 4161 } else { 4162 scheduleProcessInputEvents(); 4163 } 4164 } 4165 4166 private void scheduleProcessInputEvents() { 4167 if (!mProcessInputEventsScheduled) { 4168 mProcessInputEventsScheduled = true; 4169 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4170 msg.setAsynchronous(true); 4171 mHandler.sendMessage(msg); 4172 } 4173 } 4174 4175 void doProcessInputEvents() { 4176 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4177 QueuedInputEvent q = mFirstPendingInputEvent; 4178 mFirstPendingInputEvent = q.mNext; 4179 q.mNext = null; 4180 mCurrentInputEvent = q; 4181 deliverInputEvent(q); 4182 } 4183 4184 // We are done processing all input events that we can process right now 4185 // so we can clear the pending flag immediately. 4186 if (mProcessInputEventsScheduled) { 4187 mProcessInputEventsScheduled = false; 4188 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4189 } 4190 } 4191 4192 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4193 if (q != mCurrentInputEvent) { 4194 throw new IllegalStateException("finished input event out of order"); 4195 } 4196 4197 if (q.mReceiver != null) { 4198 q.mReceiver.finishInputEvent(q.mEvent, handled); 4199 } else { 4200 q.mEvent.recycleIfNeededAfterDispatch(); 4201 } 4202 4203 recycleQueuedInputEvent(q); 4204 4205 mCurrentInputEvent = null; 4206 if (mFirstPendingInputEvent != null) { 4207 scheduleProcessInputEvents(); 4208 } 4209 } 4210 4211 void scheduleConsumeBatchedInput() { 4212 if (!mConsumeBatchedInputScheduled) { 4213 mConsumeBatchedInputScheduled = true; 4214 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4215 mConsumedBatchedInputRunnable, null); 4216 } 4217 } 4218 4219 void unscheduleConsumeBatchedInput() { 4220 if (mConsumeBatchedInputScheduled) { 4221 mConsumeBatchedInputScheduled = false; 4222 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4223 mConsumedBatchedInputRunnable, null); 4224 } 4225 } 4226 4227 void doConsumeBatchedInput(long frameTimeNanos) { 4228 if (mConsumeBatchedInputScheduled) { 4229 mConsumeBatchedInputScheduled = false; 4230 if (mInputEventReceiver != null) { 4231 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4232 } 4233 doProcessInputEvents(); 4234 } 4235 } 4236 4237 final class TraversalRunnable implements Runnable { 4238 @Override 4239 public void run() { 4240 doTraversal(); 4241 } 4242 } 4243 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4244 4245 final class WindowInputEventReceiver extends InputEventReceiver { 4246 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4247 super(inputChannel, looper); 4248 } 4249 4250 @Override 4251 public void onInputEvent(InputEvent event) { 4252 enqueueInputEvent(event, this, 0, true); 4253 } 4254 4255 @Override 4256 public void onBatchedInputEventPending() { 4257 scheduleConsumeBatchedInput(); 4258 } 4259 4260 @Override 4261 public void dispose() { 4262 unscheduleConsumeBatchedInput(); 4263 super.dispose(); 4264 } 4265 } 4266 WindowInputEventReceiver mInputEventReceiver; 4267 4268 final class ConsumeBatchedInputRunnable implements Runnable { 4269 @Override 4270 public void run() { 4271 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4272 } 4273 } 4274 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4275 new ConsumeBatchedInputRunnable(); 4276 boolean mConsumeBatchedInputScheduled; 4277 4278 final class InvalidateOnAnimationRunnable implements Runnable { 4279 private boolean mPosted; 4280 private ArrayList<View> mViews = new ArrayList<View>(); 4281 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4282 new ArrayList<AttachInfo.InvalidateInfo>(); 4283 private View[] mTempViews; 4284 private AttachInfo.InvalidateInfo[] mTempViewRects; 4285 4286 public void addView(View view) { 4287 synchronized (this) { 4288 mViews.add(view); 4289 postIfNeededLocked(); 4290 } 4291 } 4292 4293 public void addViewRect(AttachInfo.InvalidateInfo info) { 4294 synchronized (this) { 4295 mViewRects.add(info); 4296 postIfNeededLocked(); 4297 } 4298 } 4299 4300 public void removeView(View view) { 4301 synchronized (this) { 4302 mViews.remove(view); 4303 4304 for (int i = mViewRects.size(); i-- > 0; ) { 4305 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4306 if (info.target == view) { 4307 mViewRects.remove(i); 4308 info.release(); 4309 } 4310 } 4311 4312 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4313 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4314 mPosted = false; 4315 } 4316 } 4317 } 4318 4319 @Override 4320 public void run() { 4321 final int viewCount; 4322 final int viewRectCount; 4323 synchronized (this) { 4324 mPosted = false; 4325 4326 viewCount = mViews.size(); 4327 if (viewCount != 0) { 4328 mTempViews = mViews.toArray(mTempViews != null 4329 ? mTempViews : new View[viewCount]); 4330 mViews.clear(); 4331 } 4332 4333 viewRectCount = mViewRects.size(); 4334 if (viewRectCount != 0) { 4335 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4336 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4337 mViewRects.clear(); 4338 } 4339 } 4340 4341 for (int i = 0; i < viewCount; i++) { 4342 mTempViews[i].invalidate(); 4343 mTempViews[i] = null; 4344 } 4345 4346 for (int i = 0; i < viewRectCount; i++) { 4347 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4348 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4349 info.release(); 4350 } 4351 } 4352 4353 private void postIfNeededLocked() { 4354 if (!mPosted) { 4355 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4356 mPosted = true; 4357 } 4358 } 4359 } 4360 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4361 new InvalidateOnAnimationRunnable(); 4362 4363 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4364 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4365 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4366 } 4367 4368 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4369 long delayMilliseconds) { 4370 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4371 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4372 } 4373 4374 public void dispatchInvalidateOnAnimation(View view) { 4375 mInvalidateOnAnimationRunnable.addView(view); 4376 } 4377 4378 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4379 mInvalidateOnAnimationRunnable.addViewRect(info); 4380 } 4381 4382 public void enqueueDisplayList(DisplayList displayList) { 4383 mDisplayLists.add(displayList); 4384 4385 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4386 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4387 mHandler.sendMessage(msg); 4388 } 4389 4390 public void dequeueDisplayList(DisplayList displayList) { 4391 if (mDisplayLists.remove(displayList)) { 4392 displayList.invalidate(); 4393 if (mDisplayLists.size() == 0) { 4394 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4395 } 4396 } 4397 } 4398 4399 public void cancelInvalidate(View view) { 4400 mHandler.removeMessages(MSG_INVALIDATE, view); 4401 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4402 // them to the pool 4403 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4404 mInvalidateOnAnimationRunnable.removeView(view); 4405 } 4406 4407 public void dispatchKey(KeyEvent event) { 4408 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4409 msg.setAsynchronous(true); 4410 mHandler.sendMessage(msg); 4411 } 4412 4413 public void dispatchKeyFromIme(KeyEvent event) { 4414 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4415 msg.setAsynchronous(true); 4416 mHandler.sendMessage(msg); 4417 } 4418 4419 public void dispatchUnhandledKey(KeyEvent event) { 4420 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4421 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4422 final int keyCode = event.getKeyCode(); 4423 final int metaState = event.getMetaState(); 4424 4425 // Check for fallback actions specified by the key character map. 4426 KeyCharacterMap.FallbackAction fallbackAction = 4427 kcm.getFallbackAction(keyCode, metaState); 4428 if (fallbackAction != null) { 4429 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4430 KeyEvent fallbackEvent = KeyEvent.obtain( 4431 event.getDownTime(), event.getEventTime(), 4432 event.getAction(), fallbackAction.keyCode, 4433 event.getRepeatCount(), fallbackAction.metaState, 4434 event.getDeviceId(), event.getScanCode(), 4435 flags, event.getSource(), null); 4436 fallbackAction.recycle(); 4437 4438 dispatchKey(fallbackEvent); 4439 } 4440 } 4441 } 4442 4443 public void dispatchAppVisibility(boolean visible) { 4444 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4445 msg.arg1 = visible ? 1 : 0; 4446 mHandler.sendMessage(msg); 4447 } 4448 4449 public void dispatchScreenStateChange(boolean on) { 4450 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4451 msg.arg1 = on ? 1 : 0; 4452 mHandler.sendMessage(msg); 4453 } 4454 4455 public void dispatchGetNewSurface() { 4456 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4457 mHandler.sendMessage(msg); 4458 } 4459 4460 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4461 Message msg = Message.obtain(); 4462 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4463 msg.arg1 = hasFocus ? 1 : 0; 4464 msg.arg2 = inTouchMode ? 1 : 0; 4465 mHandler.sendMessage(msg); 4466 } 4467 4468 public void dispatchCloseSystemDialogs(String reason) { 4469 Message msg = Message.obtain(); 4470 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4471 msg.obj = reason; 4472 mHandler.sendMessage(msg); 4473 } 4474 4475 public void dispatchDragEvent(DragEvent event) { 4476 final int what; 4477 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4478 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4479 mHandler.removeMessages(what); 4480 } else { 4481 what = MSG_DISPATCH_DRAG_EVENT; 4482 } 4483 Message msg = mHandler.obtainMessage(what, event); 4484 mHandler.sendMessage(msg); 4485 } 4486 4487 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4488 int localValue, int localChanges) { 4489 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4490 args.seq = seq; 4491 args.globalVisibility = globalVisibility; 4492 args.localValue = localValue; 4493 args.localChanges = localChanges; 4494 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4495 } 4496 4497 public void dispatchDoneAnimating() { 4498 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4499 } 4500 4501 public void dispatchCheckFocus() { 4502 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4503 // This will result in a call to checkFocus() below. 4504 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4505 } 4506 } 4507 4508 /** 4509 * Post a callback to send a 4510 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4511 * This event is send at most once every 4512 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4513 */ 4514 private void postSendWindowContentChangedCallback(View source) { 4515 if (mSendWindowContentChangedAccessibilityEvent == null) { 4516 mSendWindowContentChangedAccessibilityEvent = 4517 new SendWindowContentChangedAccessibilityEvent(); 4518 } 4519 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4520 if (oldSource == null) { 4521 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4522 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4523 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4524 } else { 4525 mSendWindowContentChangedAccessibilityEvent.mSource = 4526 getCommonPredecessor(oldSource, source); 4527 } 4528 } 4529 4530 /** 4531 * Remove a posted callback to send a 4532 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4533 */ 4534 private void removeSendWindowContentChangedCallback() { 4535 if (mSendWindowContentChangedAccessibilityEvent != null) { 4536 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4537 } 4538 } 4539 4540 public boolean showContextMenuForChild(View originalView) { 4541 return false; 4542 } 4543 4544 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4545 return null; 4546 } 4547 4548 public void createContextMenu(ContextMenu menu) { 4549 } 4550 4551 public void childDrawableStateChanged(View child) { 4552 } 4553 4554 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4555 if (mView == null) { 4556 return false; 4557 } 4558 // Intercept accessibility focus events fired by virtual nodes to keep 4559 // track of accessibility focus position in such nodes. 4560 final int eventType = event.getEventType(); 4561 switch (eventType) { 4562 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4563 final long sourceNodeId = event.getSourceNodeId(); 4564 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4565 sourceNodeId); 4566 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4567 if (source != null) { 4568 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4569 if (provider != null) { 4570 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4571 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4572 setAccessibilityFocus(source, node); 4573 } 4574 } 4575 } break; 4576 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4577 final long sourceNodeId = event.getSourceNodeId(); 4578 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4579 sourceNodeId); 4580 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4581 if (source != null) { 4582 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4583 if (provider != null) { 4584 setAccessibilityFocus(null, null); 4585 } 4586 } 4587 } break; 4588 } 4589 mAccessibilityManager.sendAccessibilityEvent(event); 4590 return true; 4591 } 4592 4593 @Override 4594 public void childAccessibilityStateChanged(View child) { 4595 postSendWindowContentChangedCallback(child); 4596 } 4597 4598 private View getCommonPredecessor(View first, View second) { 4599 if (mAttachInfo != null) { 4600 if (mTempHashSet == null) { 4601 mTempHashSet = new HashSet<View>(); 4602 } 4603 HashSet<View> seen = mTempHashSet; 4604 seen.clear(); 4605 View firstCurrent = first; 4606 while (firstCurrent != null) { 4607 seen.add(firstCurrent); 4608 ViewParent firstCurrentParent = firstCurrent.mParent; 4609 if (firstCurrentParent instanceof View) { 4610 firstCurrent = (View) firstCurrentParent; 4611 } else { 4612 firstCurrent = null; 4613 } 4614 } 4615 View secondCurrent = second; 4616 while (secondCurrent != null) { 4617 if (seen.contains(secondCurrent)) { 4618 seen.clear(); 4619 return secondCurrent; 4620 } 4621 ViewParent secondCurrentParent = secondCurrent.mParent; 4622 if (secondCurrentParent instanceof View) { 4623 secondCurrent = (View) secondCurrentParent; 4624 } else { 4625 secondCurrent = null; 4626 } 4627 } 4628 seen.clear(); 4629 } 4630 return null; 4631 } 4632 4633 void checkThread() { 4634 if (mThread != Thread.currentThread()) { 4635 throw new CalledFromWrongThreadException( 4636 "Only the original thread that created a view hierarchy can touch its views."); 4637 } 4638 } 4639 4640 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4641 // ViewAncestor never intercepts touch event, so this can be a no-op 4642 } 4643 4644 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4645 boolean immediate) { 4646 return scrollToRectOrFocus(rectangle, immediate); 4647 } 4648 4649 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4650 // Do nothing. 4651 } 4652 4653 class TakenSurfaceHolder extends BaseSurfaceHolder { 4654 @Override 4655 public boolean onAllowLockCanvas() { 4656 return mDrawingAllowed; 4657 } 4658 4659 @Override 4660 public void onRelayoutContainer() { 4661 // Not currently interesting -- from changing between fixed and layout size. 4662 } 4663 4664 public void setFormat(int format) { 4665 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4666 } 4667 4668 public void setType(int type) { 4669 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4670 } 4671 4672 @Override 4673 public void onUpdateSurface() { 4674 // We take care of format and type changes on our own. 4675 throw new IllegalStateException("Shouldn't be here"); 4676 } 4677 4678 public boolean isCreating() { 4679 return mIsCreating; 4680 } 4681 4682 @Override 4683 public void setFixedSize(int width, int height) { 4684 throw new UnsupportedOperationException( 4685 "Currently only support sizing from layout"); 4686 } 4687 4688 public void setKeepScreenOn(boolean screenOn) { 4689 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4690 } 4691 } 4692 4693 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4694 private WeakReference<ViewRootImpl> mViewAncestor; 4695 4696 public InputMethodCallback(ViewRootImpl viewAncestor) { 4697 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4698 } 4699 4700 @Override 4701 public void finishedEvent(int seq, boolean handled) { 4702 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4703 if (viewAncestor != null) { 4704 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4705 } 4706 } 4707 } 4708 4709 static class W extends IWindow.Stub { 4710 private final WeakReference<ViewRootImpl> mViewAncestor; 4711 private final IWindowSession mWindowSession; 4712 4713 W(ViewRootImpl viewAncestor) { 4714 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4715 mWindowSession = viewAncestor.mWindowSession; 4716 } 4717 4718 public void resized(Rect frame, Rect contentInsets, 4719 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4720 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4721 if (viewAncestor != null) { 4722 viewAncestor.dispatchResized(frame, contentInsets, 4723 visibleInsets, reportDraw, newConfig); 4724 } 4725 } 4726 4727 @Override 4728 public void moved(int newX, int newY) { 4729 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4730 if (viewAncestor != null) { 4731 viewAncestor.dispatchMoved(newX, newY); 4732 } 4733 } 4734 4735 public void dispatchAppVisibility(boolean visible) { 4736 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4737 if (viewAncestor != null) { 4738 viewAncestor.dispatchAppVisibility(visible); 4739 } 4740 } 4741 4742 public void dispatchScreenState(boolean on) { 4743 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4744 if (viewAncestor != null) { 4745 viewAncestor.dispatchScreenStateChange(on); 4746 } 4747 } 4748 4749 public void dispatchGetNewSurface() { 4750 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4751 if (viewAncestor != null) { 4752 viewAncestor.dispatchGetNewSurface(); 4753 } 4754 } 4755 4756 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4757 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4758 if (viewAncestor != null) { 4759 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4760 } 4761 } 4762 4763 private static int checkCallingPermission(String permission) { 4764 try { 4765 return ActivityManagerNative.getDefault().checkPermission( 4766 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4767 } catch (RemoteException e) { 4768 return PackageManager.PERMISSION_DENIED; 4769 } 4770 } 4771 4772 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4773 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4774 if (viewAncestor != null) { 4775 final View view = viewAncestor.mView; 4776 if (view != null) { 4777 if (checkCallingPermission(Manifest.permission.DUMP) != 4778 PackageManager.PERMISSION_GRANTED) { 4779 throw new SecurityException("Insufficient permissions to invoke" 4780 + " executeCommand() from pid=" + Binder.getCallingPid() 4781 + ", uid=" + Binder.getCallingUid()); 4782 } 4783 4784 OutputStream clientStream = null; 4785 try { 4786 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4787 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4788 } catch (IOException e) { 4789 e.printStackTrace(); 4790 } finally { 4791 if (clientStream != null) { 4792 try { 4793 clientStream.close(); 4794 } catch (IOException e) { 4795 e.printStackTrace(); 4796 } 4797 } 4798 } 4799 } 4800 } 4801 } 4802 4803 public void closeSystemDialogs(String reason) { 4804 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4805 if (viewAncestor != null) { 4806 viewAncestor.dispatchCloseSystemDialogs(reason); 4807 } 4808 } 4809 4810 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4811 boolean sync) { 4812 if (sync) { 4813 try { 4814 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4815 } catch (RemoteException e) { 4816 } 4817 } 4818 } 4819 4820 public void dispatchWallpaperCommand(String action, int x, int y, 4821 int z, Bundle extras, boolean sync) { 4822 if (sync) { 4823 try { 4824 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4825 } catch (RemoteException e) { 4826 } 4827 } 4828 } 4829 4830 /* Drag/drop */ 4831 public void dispatchDragEvent(DragEvent event) { 4832 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4833 if (viewAncestor != null) { 4834 viewAncestor.dispatchDragEvent(event); 4835 } 4836 } 4837 4838 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4839 int localValue, int localChanges) { 4840 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4841 if (viewAncestor != null) { 4842 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4843 localValue, localChanges); 4844 } 4845 } 4846 4847 public void doneAnimating() { 4848 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4849 if (viewAncestor != null) { 4850 viewAncestor.dispatchDoneAnimating(); 4851 } 4852 } 4853 } 4854 4855 /** 4856 * Maintains state information for a single trackball axis, generating 4857 * discrete (DPAD) movements based on raw trackball motion. 4858 */ 4859 static final class TrackballAxis { 4860 /** 4861 * The maximum amount of acceleration we will apply. 4862 */ 4863 static final float MAX_ACCELERATION = 20; 4864 4865 /** 4866 * The maximum amount of time (in milliseconds) between events in order 4867 * for us to consider the user to be doing fast trackball movements, 4868 * and thus apply an acceleration. 4869 */ 4870 static final long FAST_MOVE_TIME = 150; 4871 4872 /** 4873 * Scaling factor to the time (in milliseconds) between events to how 4874 * much to multiple/divide the current acceleration. When movement 4875 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4876 * FAST_MOVE_TIME it divides it. 4877 */ 4878 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4879 4880 float position; 4881 float absPosition; 4882 float acceleration = 1; 4883 long lastMoveTime = 0; 4884 int step; 4885 int dir; 4886 int nonAccelMovement; 4887 4888 void reset(int _step) { 4889 position = 0; 4890 acceleration = 1; 4891 lastMoveTime = 0; 4892 step = _step; 4893 dir = 0; 4894 } 4895 4896 /** 4897 * Add trackball movement into the state. If the direction of movement 4898 * has been reversed, the state is reset before adding the 4899 * movement (so that you don't have to compensate for any previously 4900 * collected movement before see the result of the movement in the 4901 * new direction). 4902 * 4903 * @return Returns the absolute value of the amount of movement 4904 * collected so far. 4905 */ 4906 float collect(float off, long time, String axis) { 4907 long normTime; 4908 if (off > 0) { 4909 normTime = (long)(off * FAST_MOVE_TIME); 4910 if (dir < 0) { 4911 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4912 position = 0; 4913 step = 0; 4914 acceleration = 1; 4915 lastMoveTime = 0; 4916 } 4917 dir = 1; 4918 } else if (off < 0) { 4919 normTime = (long)((-off) * FAST_MOVE_TIME); 4920 if (dir > 0) { 4921 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4922 position = 0; 4923 step = 0; 4924 acceleration = 1; 4925 lastMoveTime = 0; 4926 } 4927 dir = -1; 4928 } else { 4929 normTime = 0; 4930 } 4931 4932 // The number of milliseconds between each movement that is 4933 // considered "normal" and will not result in any acceleration 4934 // or deceleration, scaled by the offset we have here. 4935 if (normTime > 0) { 4936 long delta = time - lastMoveTime; 4937 lastMoveTime = time; 4938 float acc = acceleration; 4939 if (delta < normTime) { 4940 // The user is scrolling rapidly, so increase acceleration. 4941 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4942 if (scale > 1) acc *= scale; 4943 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4944 + off + " normTime=" + normTime + " delta=" + delta 4945 + " scale=" + scale + " acc=" + acc); 4946 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4947 } else { 4948 // The user is scrolling slowly, so decrease acceleration. 4949 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4950 if (scale > 1) acc /= scale; 4951 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4952 + off + " normTime=" + normTime + " delta=" + delta 4953 + " scale=" + scale + " acc=" + acc); 4954 acceleration = acc > 1 ? acc : 1; 4955 } 4956 } 4957 position += off; 4958 return (absPosition = Math.abs(position)); 4959 } 4960 4961 /** 4962 * Generate the number of discrete movement events appropriate for 4963 * the currently collected trackball movement. 4964 * 4965 * @param precision The minimum movement required to generate the 4966 * first discrete movement. 4967 * 4968 * @return Returns the number of discrete movements, either positive 4969 * or negative, or 0 if there is not enough trackball movement yet 4970 * for a discrete movement. 4971 */ 4972 int generate(float precision) { 4973 int movement = 0; 4974 nonAccelMovement = 0; 4975 do { 4976 final int dir = position >= 0 ? 1 : -1; 4977 switch (step) { 4978 // If we are going to execute the first step, then we want 4979 // to do this as soon as possible instead of waiting for 4980 // a full movement, in order to make things look responsive. 4981 case 0: 4982 if (absPosition < precision) { 4983 return movement; 4984 } 4985 movement += dir; 4986 nonAccelMovement += dir; 4987 step = 1; 4988 break; 4989 // If we have generated the first movement, then we need 4990 // to wait for the second complete trackball motion before 4991 // generating the second discrete movement. 4992 case 1: 4993 if (absPosition < 2) { 4994 return movement; 4995 } 4996 movement += dir; 4997 nonAccelMovement += dir; 4998 position += dir > 0 ? -2 : 2; 4999 absPosition = Math.abs(position); 5000 step = 2; 5001 break; 5002 // After the first two, we generate discrete movements 5003 // consistently with the trackball, applying an acceleration 5004 // if the trackball is moving quickly. This is a simple 5005 // acceleration on top of what we already compute based 5006 // on how quickly the wheel is being turned, to apply 5007 // a longer increasing acceleration to continuous movement 5008 // in one direction. 5009 default: 5010 if (absPosition < 1) { 5011 return movement; 5012 } 5013 movement += dir; 5014 position += dir >= 0 ? -1 : 1; 5015 absPosition = Math.abs(position); 5016 float acc = acceleration; 5017 acc *= 1.1f; 5018 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5019 break; 5020 } 5021 } while (true); 5022 } 5023 } 5024 5025 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5026 public CalledFromWrongThreadException(String msg) { 5027 super(msg); 5028 } 5029 } 5030 5031 private SurfaceHolder mHolder = new SurfaceHolder() { 5032 // we only need a SurfaceHolder for opengl. it would be nice 5033 // to implement everything else though, especially the callback 5034 // support (opengl doesn't make use of it right now, but eventually 5035 // will). 5036 public Surface getSurface() { 5037 return mSurface; 5038 } 5039 5040 public boolean isCreating() { 5041 return false; 5042 } 5043 5044 public void addCallback(Callback callback) { 5045 } 5046 5047 public void removeCallback(Callback callback) { 5048 } 5049 5050 public void setFixedSize(int width, int height) { 5051 } 5052 5053 public void setSizeFromLayout() { 5054 } 5055 5056 public void setFormat(int format) { 5057 } 5058 5059 public void setType(int type) { 5060 } 5061 5062 public void setKeepScreenOn(boolean screenOn) { 5063 } 5064 5065 public Canvas lockCanvas() { 5066 return null; 5067 } 5068 5069 public Canvas lockCanvas(Rect dirty) { 5070 return null; 5071 } 5072 5073 public void unlockCanvasAndPost(Canvas canvas) { 5074 } 5075 public Rect getSurfaceFrame() { 5076 return null; 5077 } 5078 }; 5079 5080 static RunQueue getRunQueue() { 5081 RunQueue rq = sRunQueues.get(); 5082 if (rq != null) { 5083 return rq; 5084 } 5085 rq = new RunQueue(); 5086 sRunQueues.set(rq); 5087 return rq; 5088 } 5089 5090 /** 5091 * The run queue is used to enqueue pending work from Views when no Handler is 5092 * attached. The work is executed during the next call to performTraversals on 5093 * the thread. 5094 * @hide 5095 */ 5096 static final class RunQueue { 5097 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5098 5099 void post(Runnable action) { 5100 postDelayed(action, 0); 5101 } 5102 5103 void postDelayed(Runnable action, long delayMillis) { 5104 HandlerAction handlerAction = new HandlerAction(); 5105 handlerAction.action = action; 5106 handlerAction.delay = delayMillis; 5107 5108 synchronized (mActions) { 5109 mActions.add(handlerAction); 5110 } 5111 } 5112 5113 void removeCallbacks(Runnable action) { 5114 final HandlerAction handlerAction = new HandlerAction(); 5115 handlerAction.action = action; 5116 5117 synchronized (mActions) { 5118 final ArrayList<HandlerAction> actions = mActions; 5119 5120 while (actions.remove(handlerAction)) { 5121 // Keep going 5122 } 5123 } 5124 } 5125 5126 void executeActions(Handler handler) { 5127 synchronized (mActions) { 5128 final ArrayList<HandlerAction> actions = mActions; 5129 final int count = actions.size(); 5130 5131 for (int i = 0; i < count; i++) { 5132 final HandlerAction handlerAction = actions.get(i); 5133 handler.postDelayed(handlerAction.action, handlerAction.delay); 5134 } 5135 5136 actions.clear(); 5137 } 5138 } 5139 5140 private static class HandlerAction { 5141 Runnable action; 5142 long delay; 5143 5144 @Override 5145 public boolean equals(Object o) { 5146 if (this == o) return true; 5147 if (o == null || getClass() != o.getClass()) return false; 5148 5149 HandlerAction that = (HandlerAction) o; 5150 return !(action != null ? !action.equals(that.action) : that.action != null); 5151 5152 } 5153 5154 @Override 5155 public int hashCode() { 5156 int result = action != null ? action.hashCode() : 0; 5157 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5158 return result; 5159 } 5160 } 5161 } 5162 5163 /** 5164 * Class for managing the accessibility interaction connection 5165 * based on the global accessibility state. 5166 */ 5167 final class AccessibilityInteractionConnectionManager 5168 implements AccessibilityStateChangeListener { 5169 public void onAccessibilityStateChanged(boolean enabled) { 5170 if (enabled) { 5171 ensureConnection(); 5172 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5173 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5174 View focusedView = mView.findFocus(); 5175 if (focusedView != null && focusedView != mView) { 5176 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5177 } 5178 } 5179 } else { 5180 ensureNoConnection(); 5181 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5182 } 5183 } 5184 5185 public void ensureConnection() { 5186 if (mAttachInfo != null) { 5187 final boolean registered = 5188 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5189 if (!registered) { 5190 mAttachInfo.mAccessibilityWindowId = 5191 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5192 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5193 } 5194 } 5195 } 5196 5197 public void ensureNoConnection() { 5198 final boolean registered = 5199 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5200 if (registered) { 5201 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5202 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5203 } 5204 } 5205 } 5206 5207 /** 5208 * This class is an interface this ViewAncestor provides to the 5209 * AccessibilityManagerService to the latter can interact with 5210 * the view hierarchy in this ViewAncestor. 5211 */ 5212 static final class AccessibilityInteractionConnection 5213 extends IAccessibilityInteractionConnection.Stub { 5214 private final WeakReference<ViewRootImpl> mViewRootImpl; 5215 5216 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5217 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5218 } 5219 5220 @Override 5221 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5222 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5223 int interrogatingPid, long interrogatingTid) { 5224 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5225 if (viewRootImpl != null && viewRootImpl.mView != null) { 5226 viewRootImpl.getAccessibilityInteractionController() 5227 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5228 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5229 } else { 5230 // We cannot make the call and notify the caller so it does not wait. 5231 try { 5232 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5233 } catch (RemoteException re) { 5234 /* best effort - ignore */ 5235 } 5236 } 5237 } 5238 5239 @Override 5240 public void performAccessibilityAction(long accessibilityNodeId, int action, 5241 Bundle arguments, int interactionId, 5242 IAccessibilityInteractionConnectionCallback callback, int flags, 5243 int interogatingPid, long interrogatingTid) { 5244 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5245 if (viewRootImpl != null && viewRootImpl.mView != null) { 5246 viewRootImpl.getAccessibilityInteractionController() 5247 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5248 interactionId, callback, flags, interogatingPid, interrogatingTid); 5249 } else { 5250 // We cannot make the call and notify the caller so it does not wait. 5251 try { 5252 callback.setPerformAccessibilityActionResult(false, interactionId); 5253 } catch (RemoteException re) { 5254 /* best effort - ignore */ 5255 } 5256 } 5257 } 5258 5259 @Override 5260 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5261 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5262 int interrogatingPid, long interrogatingTid) { 5263 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5264 if (viewRootImpl != null && viewRootImpl.mView != null) { 5265 viewRootImpl.getAccessibilityInteractionController() 5266 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5267 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5268 } else { 5269 // We cannot make the call and notify the caller so it does not wait. 5270 try { 5271 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5272 } catch (RemoteException re) { 5273 /* best effort - ignore */ 5274 } 5275 } 5276 } 5277 5278 @Override 5279 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5280 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5281 int interrogatingPid, long interrogatingTid) { 5282 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5283 if (viewRootImpl != null && viewRootImpl.mView != null) { 5284 viewRootImpl.getAccessibilityInteractionController() 5285 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5286 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5287 } else { 5288 // We cannot make the call and notify the caller so it does not wait. 5289 try { 5290 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5291 } catch (RemoteException re) { 5292 /* best effort - ignore */ 5293 } 5294 } 5295 } 5296 5297 @Override 5298 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5299 IAccessibilityInteractionConnectionCallback callback, int flags, 5300 int interrogatingPid, long interrogatingTid) { 5301 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5302 if (viewRootImpl != null && viewRootImpl.mView != null) { 5303 viewRootImpl.getAccessibilityInteractionController() 5304 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5305 flags, interrogatingPid, interrogatingTid); 5306 } else { 5307 // We cannot make the call and notify the caller so it does not wait. 5308 try { 5309 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5310 } catch (RemoteException re) { 5311 /* best effort - ignore */ 5312 } 5313 } 5314 } 5315 5316 @Override 5317 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5318 IAccessibilityInteractionConnectionCallback callback, int flags, 5319 int interrogatingPid, long interrogatingTid) { 5320 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5321 if (viewRootImpl != null && viewRootImpl.mView != null) { 5322 viewRootImpl.getAccessibilityInteractionController() 5323 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5324 callback, flags, interrogatingPid, interrogatingTid); 5325 } else { 5326 // We cannot make the call and notify the caller so it does not wait. 5327 try { 5328 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5329 } catch (RemoteException re) { 5330 /* best effort - ignore */ 5331 } 5332 } 5333 } 5334 } 5335 5336 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5337 public View mSource; 5338 5339 public void run() { 5340 if (mSource != null) { 5341 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5342 mSource.resetAccessibilityStateChanged(); 5343 mSource = null; 5344 } 5345 } 5346 } 5347} 5348