ViewRootImpl.java revision fbba753f62f13a12d9287c67921d1ea60e92768d
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 /** Set to true while in performTraversals for detecting when die(true) is called from internal 218 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 219 boolean mIsInTraversal; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 233 // Pool of queued input events. 234 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 235 private QueuedInputEvent mQueuedInputEventPool; 236 private int mQueuedInputEventPoolSize; 237 238 // Input event queue. 239 QueuedInputEvent mFirstPendingInputEvent; 240 QueuedInputEvent mCurrentInputEvent; 241 boolean mProcessInputEventsScheduled; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 private final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 final CompatibilityInfoHolder mCompatibilityInfo; 254 255 // These are accessed by multiple threads. 256 final Rect mWinFrame; // frame given by window manager. 257 258 final Rect mPendingVisibleInsets = new Rect(); 259 final Rect mPendingContentInsets = new Rect(); 260 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 261 = new ViewTreeObserver.InternalInsetsInfo(); 262 263 final Rect mFitSystemWindowsInsets = new Rect(); 264 265 final Configuration mLastConfiguration = new Configuration(); 266 final Configuration mPendingConfiguration = new Configuration(); 267 268 boolean mScrollMayChange; 269 int mSoftInputMode; 270 View mLastScrolledFocus; 271 int mScrollY; 272 int mCurScrollY; 273 Scroller mScroller; 274 HardwareLayer mResizeBuffer; 275 long mResizeBufferStartTime; 276 int mResizeBufferDuration; 277 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 278 private ArrayList<LayoutTransition> mPendingTransitions; 279 280 final ViewConfiguration mViewConfiguration; 281 282 /* Drag/drop */ 283 ClipDescription mDragDescription; 284 View mCurrentDragView; 285 volatile Object mLocalDragState; 286 final PointF mDragPoint = new PointF(); 287 final PointF mLastTouchPoint = new PointF(); 288 289 private boolean mProfileRendering; 290 private Thread mRenderProfiler; 291 private volatile boolean mRenderProfilingEnabled; 292 293 // Variables to track frames per second, enabled via DEBUG_FPS flag 294 private long mFpsStartTime = -1; 295 private long mFpsPrevTime = -1; 296 private int mFpsNumFrames; 297 298 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 299 300 /** 301 * see {@link #playSoundEffect(int)} 302 */ 303 AudioManager mAudioManager; 304 305 final AccessibilityManager mAccessibilityManager; 306 307 AccessibilityInteractionController mAccessibilityInteractionController; 308 309 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 310 311 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 312 313 HashSet<View> mTempHashSet; 314 315 private final int mDensity; 316 private final int mNoncompatDensity; 317 318 private int mViewLayoutDirectionInitial; 319 320 /** 321 * Consistency verifier for debugging purposes. 322 */ 323 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 324 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 325 new InputEventConsistencyVerifier(this, 0) : null; 326 327 static final class SystemUiVisibilityInfo { 328 int seq; 329 int globalVisibility; 330 int localValue; 331 int localChanges; 332 } 333 334 public ViewRootImpl(Context context, Display display) { 335 super(); 336 337 if (MEASURE_LATENCY) { 338 if (lt == null) { 339 lt = new LatencyTimer(100, 1000); 340 } 341 } 342 343 // Initialize the statics when this class is first instantiated. This is 344 // done here instead of in the static block because Zygote does not 345 // allow the spawning of threads. 346 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 347 mDisplay = display; 348 349 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 350 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 351 352 mThread = Thread.currentThread(); 353 mLocation = new WindowLeaked(null); 354 mLocation.fillInStackTrace(); 355 mWidth = -1; 356 mHeight = -1; 357 mDirty = new Rect(); 358 mTempRect = new Rect(); 359 mVisRect = new Rect(); 360 mWinFrame = new Rect(); 361 mWindow = new W(this); 362 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 363 mInputMethodCallback = new InputMethodCallback(this); 364 mViewVisibility = View.GONE; 365 mTransparentRegion = new Region(); 366 mPreviousTransparentRegion = new Region(); 367 mFirst = true; // true for the first time the view is added 368 mAdded = false; 369 mAccessibilityManager = AccessibilityManager.getInstance(context); 370 mAccessibilityInteractionConnectionManager = 371 new AccessibilityInteractionConnectionManager(); 372 mAccessibilityManager.addAccessibilityStateChangeListener( 373 mAccessibilityInteractionConnectionManager); 374 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 375 mViewConfiguration = ViewConfiguration.get(context); 376 mDensity = context.getResources().getDisplayMetrics().densityDpi; 377 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 378 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 379 mProfileRendering = Boolean.parseBoolean( 380 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 381 mChoreographer = Choreographer.getInstance(); 382 383 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 384 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 385 loadSystemProperties(); 386 } 387 388 /** 389 * @return True if the application requests the use of a separate render thread, 390 * false otherwise 391 */ 392 private static boolean isRenderThreadRequested(Context context) { 393 if (USE_RENDER_THREAD) { 394 synchronized (sRenderThreadQueryLock) { 395 if (!sRenderThreadQueried) { 396 final PackageManager packageManager = context.getPackageManager(); 397 final String packageName = context.getApplicationInfo().packageName; 398 try { 399 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 400 PackageManager.GET_META_DATA); 401 if (applicationInfo.metaData != null) { 402 sUseRenderThread = applicationInfo.metaData.getBoolean( 403 "android.graphics.renderThread", false); 404 } 405 } catch (PackageManager.NameNotFoundException e) { 406 } finally { 407 sRenderThreadQueried = true; 408 } 409 } 410 return sUseRenderThread; 411 } 412 } else { 413 return false; 414 } 415 } 416 417 public static void addFirstDrawHandler(Runnable callback) { 418 synchronized (sFirstDrawHandlers) { 419 if (!sFirstDrawComplete) { 420 sFirstDrawHandlers.add(callback); 421 } 422 } 423 } 424 425 public static void addConfigCallback(ComponentCallbacks callback) { 426 synchronized (sConfigCallbacks) { 427 sConfigCallbacks.add(callback); 428 } 429 } 430 431 // FIXME for perf testing only 432 private boolean mProfile = false; 433 434 /** 435 * Call this to profile the next traversal call. 436 * FIXME for perf testing only. Remove eventually 437 */ 438 public void profile() { 439 mProfile = true; 440 } 441 442 /** 443 * Indicates whether we are in touch mode. Calling this method triggers an IPC 444 * call and should be avoided whenever possible. 445 * 446 * @return True, if the device is in touch mode, false otherwise. 447 * 448 * @hide 449 */ 450 static boolean isInTouchMode() { 451 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 452 if (windowSession != null) { 453 try { 454 return windowSession.getInTouchMode(); 455 } catch (RemoteException e) { 456 } 457 } 458 return false; 459 } 460 461 /** 462 * We have one child 463 */ 464 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 465 synchronized (this) { 466 if (mView == null) { 467 mView = view; 468 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 469 mFallbackEventHandler.setView(view); 470 mWindowAttributes.copyFrom(attrs); 471 attrs = mWindowAttributes; 472 // Keep track of the actual window flags supplied by the client. 473 mClientWindowLayoutFlags = attrs.flags; 474 475 setAccessibilityFocus(null, null); 476 477 if (view instanceof RootViewSurfaceTaker) { 478 mSurfaceHolderCallback = 479 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 480 if (mSurfaceHolderCallback != null) { 481 mSurfaceHolder = new TakenSurfaceHolder(); 482 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 483 } 484 } 485 486 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 487 mTranslator = compatibilityInfo.getTranslator(); 488 489 // If the application owns the surface, don't enable hardware acceleration 490 if (mSurfaceHolder == null) { 491 enableHardwareAcceleration(mView.getContext(), attrs); 492 } 493 494 boolean restore = false; 495 if (mTranslator != null) { 496 mSurface.setCompatibilityTranslator(mTranslator); 497 restore = true; 498 attrs.backup(); 499 mTranslator.translateWindowLayout(attrs); 500 } 501 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 502 503 if (!compatibilityInfo.supportsScreen()) { 504 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 505 mLastInCompatMode = true; 506 } 507 508 mSoftInputMode = attrs.softInputMode; 509 mWindowAttributesChanged = true; 510 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 511 mAttachInfo.mRootView = view; 512 mAttachInfo.mScalingRequired = mTranslator != null; 513 mAttachInfo.mApplicationScale = 514 mTranslator == null ? 1.0f : mTranslator.applicationScale; 515 if (panelParentView != null) { 516 mAttachInfo.mPanelParentWindowToken 517 = panelParentView.getApplicationWindowToken(); 518 } 519 mAdded = true; 520 int res; /* = WindowManagerImpl.ADD_OKAY; */ 521 522 // Schedule the first layout -before- adding to the window 523 // manager, to make sure we do the relayout before receiving 524 // any other events from the system. 525 requestLayout(); 526 if ((mWindowAttributes.inputFeatures 527 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 528 mInputChannel = new InputChannel(); 529 } 530 try { 531 mOrigWindowType = mWindowAttributes.type; 532 mAttachInfo.mRecomputeGlobalAttributes = true; 533 collectViewAttributes(); 534 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 535 getHostVisibility(), mDisplay.getDisplayId(), 536 mAttachInfo.mContentInsets, mInputChannel); 537 } catch (RemoteException e) { 538 mAdded = false; 539 mView = null; 540 mAttachInfo.mRootView = null; 541 mInputChannel = null; 542 mFallbackEventHandler.setView(null); 543 unscheduleTraversals(); 544 setAccessibilityFocus(null, null); 545 throw new RuntimeException("Adding window failed", e); 546 } finally { 547 if (restore) { 548 attrs.restore(); 549 } 550 } 551 552 if (mTranslator != null) { 553 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 554 } 555 mPendingContentInsets.set(mAttachInfo.mContentInsets); 556 mPendingVisibleInsets.set(0, 0, 0, 0); 557 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 558 if (res < WindowManagerGlobal.ADD_OKAY) { 559 mView = null; 560 mAttachInfo.mRootView = null; 561 mAdded = false; 562 mFallbackEventHandler.setView(null); 563 unscheduleTraversals(); 564 setAccessibilityFocus(null, null); 565 switch (res) { 566 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 567 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 568 throw new WindowManager.BadTokenException( 569 "Unable to add window -- token " + attrs.token 570 + " is not valid; is your activity running?"); 571 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 572 throw new WindowManager.BadTokenException( 573 "Unable to add window -- token " + attrs.token 574 + " is not for an application"); 575 case WindowManagerGlobal.ADD_APP_EXITING: 576 throw new WindowManager.BadTokenException( 577 "Unable to add window -- app for token " + attrs.token 578 + " is exiting"); 579 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 580 throw new WindowManager.BadTokenException( 581 "Unable to add window -- window " + mWindow 582 + " has already been added"); 583 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 584 // Silently ignore -- we would have just removed it 585 // right away, anyway. 586 return; 587 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 588 throw new WindowManager.BadTokenException( 589 "Unable to add window " + mWindow + 590 " -- another window of this type already exists"); 591 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 592 throw new WindowManager.BadTokenException( 593 "Unable to add window " + mWindow + 594 " -- permission denied for this window type"); 595 } 596 throw new RuntimeException( 597 "Unable to add window -- unknown error code " + res); 598 } 599 600 if (view instanceof RootViewSurfaceTaker) { 601 mInputQueueCallback = 602 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 603 } 604 if (mInputChannel != null) { 605 if (mInputQueueCallback != null) { 606 mInputQueue = new InputQueue(mInputChannel); 607 mInputQueueCallback.onInputQueueCreated(mInputQueue); 608 } else { 609 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 610 Looper.myLooper()); 611 } 612 } 613 614 view.assignParent(this); 615 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 616 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 617 618 if (mAccessibilityManager.isEnabled()) { 619 mAccessibilityInteractionConnectionManager.ensureConnection(); 620 } 621 622 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 623 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 624 } 625 } 626 } 627 } 628 629 void destroyHardwareResources() { 630 if (mAttachInfo.mHardwareRenderer != null) { 631 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 632 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 633 } 634 mAttachInfo.mHardwareRenderer.destroy(false); 635 } 636 } 637 638 void terminateHardwareResources() { 639 if (mAttachInfo.mHardwareRenderer != null) { 640 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 641 mAttachInfo.mHardwareRenderer.destroy(false); 642 } 643 } 644 645 void destroyHardwareLayers() { 646 if (mThread != Thread.currentThread()) { 647 if (mAttachInfo.mHardwareRenderer != null && 648 mAttachInfo.mHardwareRenderer.isEnabled()) { 649 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 650 } 651 } else { 652 if (mAttachInfo.mHardwareRenderer != null && 653 mAttachInfo.mHardwareRenderer.isEnabled()) { 654 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 655 } 656 } 657 } 658 659 void pushHardwareLayerUpdate(HardwareLayer layer) { 660 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 661 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 662 } 663 } 664 665 public boolean attachFunctor(int functor) { 666 //noinspection SimplifiableIfStatement 667 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 668 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 669 } 670 return false; 671 } 672 673 public void detachFunctor(int functor) { 674 if (mAttachInfo.mHardwareRenderer != null) { 675 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 676 } 677 } 678 679 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 680 mAttachInfo.mHardwareAccelerated = false; 681 mAttachInfo.mHardwareAccelerationRequested = false; 682 683 // Don't enable hardware acceleration when the application is in compatibility mode 684 if (mTranslator != null) return; 685 686 // Try to enable hardware acceleration if requested 687 final boolean hardwareAccelerated = 688 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 689 690 if (hardwareAccelerated) { 691 if (!HardwareRenderer.isAvailable()) { 692 return; 693 } 694 695 // Persistent processes (including the system) should not do 696 // accelerated rendering on low-end devices. In that case, 697 // sRendererDisabled will be set. In addition, the system process 698 // itself should never do accelerated rendering. In that case, both 699 // sRendererDisabled and sSystemRendererDisabled are set. When 700 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 701 // can be used by code on the system process to escape that and enable 702 // HW accelerated drawing. (This is basically for the lock screen.) 703 704 final boolean fakeHwAccelerated = (attrs.privateFlags & 705 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 706 final boolean forceHwAccelerated = (attrs.privateFlags & 707 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 708 709 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 710 && forceHwAccelerated)) { 711 // Don't enable hardware acceleration when we're not on the main thread 712 if (!HardwareRenderer.sSystemRendererDisabled && 713 Looper.getMainLooper() != Looper.myLooper()) { 714 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 715 + "acceleration outside of the main thread, aborting"); 716 return; 717 } 718 719 final boolean renderThread = isRenderThreadRequested(context); 720 if (renderThread) { 721 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 722 } 723 724 if (mAttachInfo.mHardwareRenderer != null) { 725 mAttachInfo.mHardwareRenderer.destroy(true); 726 } 727 728 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 729 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 730 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 731 = mAttachInfo.mHardwareRenderer != null; 732 733 } else if (fakeHwAccelerated) { 734 // The window had wanted to use hardware acceleration, but this 735 // is not allowed in its process. By setting this flag, it can 736 // still render as if it was accelerated. This is basically for 737 // the preview windows the window manager shows for launching 738 // applications, so they will look more like the app being launched. 739 mAttachInfo.mHardwareAccelerationRequested = true; 740 } 741 } 742 } 743 744 public View getView() { 745 return mView; 746 } 747 748 final WindowLeaked getLocation() { 749 return mLocation; 750 } 751 752 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 753 synchronized (this) { 754 int oldSoftInputMode = mWindowAttributes.softInputMode; 755 // Keep track of the actual window flags supplied by the client. 756 mClientWindowLayoutFlags = attrs.flags; 757 // preserve compatible window flag if exists. 758 int compatibleWindowFlag = 759 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 760 // transfer over system UI visibility values as they carry current state. 761 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 762 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 763 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 764 mWindowAttributes.flags |= compatibleWindowFlag; 765 766 applyKeepScreenOnFlag(mWindowAttributes); 767 768 if (newView) { 769 mSoftInputMode = attrs.softInputMode; 770 requestLayout(); 771 } 772 // Don't lose the mode we last auto-computed. 773 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 774 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 775 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 776 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 777 | (oldSoftInputMode 778 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 779 } 780 mWindowAttributesChanged = true; 781 scheduleTraversals(); 782 } 783 } 784 785 void handleAppVisibility(boolean visible) { 786 if (mAppVisible != visible) { 787 mAppVisible = visible; 788 scheduleTraversals(); 789 } 790 } 791 792 void handleGetNewSurface() { 793 mNewSurfaceNeeded = true; 794 mFullRedrawNeeded = true; 795 scheduleTraversals(); 796 } 797 798 void handleScreenStateChange(boolean on) { 799 if (on != mAttachInfo.mScreenOn) { 800 mAttachInfo.mScreenOn = on; 801 if (mView != null) { 802 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 803 } 804 if (on) { 805 mFullRedrawNeeded = true; 806 scheduleTraversals(); 807 } 808 } 809 } 810 811 /** 812 * {@inheritDoc} 813 */ 814 public void requestFitSystemWindows() { 815 checkThread(); 816 mFitSystemWindowsRequested = true; 817 scheduleTraversals(); 818 } 819 820 /** 821 * {@inheritDoc} 822 */ 823 public void requestLayout() { 824 checkThread(); 825 mLayoutRequested = true; 826 scheduleTraversals(); 827 } 828 829 /** 830 * {@inheritDoc} 831 */ 832 public boolean isLayoutRequested() { 833 return mLayoutRequested; 834 } 835 836 void invalidate() { 837 mDirty.set(0, 0, mWidth, mHeight); 838 scheduleTraversals(); 839 } 840 841 void invalidateWorld(View view) { 842 view.invalidate(); 843 if (view instanceof ViewGroup) { 844 ViewGroup parent = (ViewGroup) view; 845 for (int i = 0; i < parent.getChildCount(); i++) { 846 invalidateWorld(parent.getChildAt(i)); 847 } 848 } 849 } 850 851 public void invalidateChild(View child, Rect dirty) { 852 invalidateChildInParent(null, dirty); 853 } 854 855 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 856 checkThread(); 857 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 858 859 if (dirty == null) { 860 invalidate(); 861 return null; 862 } else if (dirty.isEmpty() && !mIsAnimating) { 863 return null; 864 } 865 866 if (mCurScrollY != 0 || mTranslator != null) { 867 mTempRect.set(dirty); 868 dirty = mTempRect; 869 if (mCurScrollY != 0) { 870 dirty.offset(0, -mCurScrollY); 871 } 872 if (mTranslator != null) { 873 mTranslator.translateRectInAppWindowToScreen(dirty); 874 } 875 if (mAttachInfo.mScalingRequired) { 876 dirty.inset(-1, -1); 877 } 878 } 879 880 final Rect localDirty = mDirty; 881 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 882 mAttachInfo.mSetIgnoreDirtyState = true; 883 mAttachInfo.mIgnoreDirtyState = true; 884 } 885 886 // Add the new dirty rect to the current one 887 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 888 // Intersect with the bounds of the window to skip 889 // updates that lie outside of the visible region 890 final float appScale = mAttachInfo.mApplicationScale; 891 final boolean intersected = localDirty.intersect(0, 0, 892 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 893 if (!intersected) { 894 localDirty.setEmpty(); 895 } 896 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 897 scheduleTraversals(); 898 } 899 900 return null; 901 } 902 903 void setStopped(boolean stopped) { 904 if (mStopped != stopped) { 905 mStopped = stopped; 906 if (!stopped) { 907 scheduleTraversals(); 908 } 909 } 910 } 911 912 public ViewParent getParent() { 913 return null; 914 } 915 916 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 917 if (child != mView) { 918 throw new RuntimeException("child is not mine, honest!"); 919 } 920 // Note: don't apply scroll offset, because we want to know its 921 // visibility in the virtual canvas being given to the view hierarchy. 922 return r.intersect(0, 0, mWidth, mHeight); 923 } 924 925 public void bringChildToFront(View child) { 926 } 927 928 int getHostVisibility() { 929 return mAppVisible ? mView.getVisibility() : View.GONE; 930 } 931 932 void disposeResizeBuffer() { 933 if (mResizeBuffer != null) { 934 mResizeBuffer.destroy(); 935 mResizeBuffer = null; 936 } 937 } 938 939 /** 940 * Add LayoutTransition to the list of transitions to be started in the next traversal. 941 * This list will be cleared after the transitions on the list are start()'ed. These 942 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 943 * happens during the layout phase of traversal, which we want to complete before any of the 944 * animations are started (because those animations may side-effect properties that layout 945 * depends upon, like the bounding rectangles of the affected views). So we add the transition 946 * to the list and it is started just prior to starting the drawing phase of traversal. 947 * 948 * @param transition The LayoutTransition to be started on the next traversal. 949 * 950 * @hide 951 */ 952 public void requestTransitionStart(LayoutTransition transition) { 953 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 954 if (mPendingTransitions == null) { 955 mPendingTransitions = new ArrayList<LayoutTransition>(); 956 } 957 mPendingTransitions.add(transition); 958 } 959 } 960 961 void scheduleTraversals() { 962 if (!mTraversalScheduled) { 963 mTraversalScheduled = true; 964 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 965 mChoreographer.postCallback( 966 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 967 scheduleConsumeBatchedInput(); 968 } 969 } 970 971 void unscheduleTraversals() { 972 if (mTraversalScheduled) { 973 mTraversalScheduled = false; 974 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 975 mChoreographer.removeCallbacks( 976 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 977 } 978 } 979 980 void doTraversal() { 981 if (mTraversalScheduled) { 982 mTraversalScheduled = false; 983 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 984 985 if (mProfile) { 986 Debug.startMethodTracing("ViewAncestor"); 987 } 988 989 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 990 try { 991 performTraversals(); 992 } finally { 993 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 994 } 995 996 if (mProfile) { 997 Debug.stopMethodTracing(); 998 mProfile = false; 999 } 1000 } 1001 } 1002 1003 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1004 // Update window's global keep screen on flag: if a view has requested 1005 // that the screen be kept on, then it is always set; otherwise, it is 1006 // set to whatever the client last requested for the global state. 1007 if (mAttachInfo.mKeepScreenOn) { 1008 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1009 } else { 1010 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1011 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1012 } 1013 } 1014 1015 private boolean collectViewAttributes() { 1016 final View.AttachInfo attachInfo = mAttachInfo; 1017 if (attachInfo.mRecomputeGlobalAttributes) { 1018 //Log.i(TAG, "Computing view hierarchy attributes!"); 1019 attachInfo.mRecomputeGlobalAttributes = false; 1020 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1021 attachInfo.mKeepScreenOn = false; 1022 attachInfo.mSystemUiVisibility = 0; 1023 attachInfo.mHasSystemUiListeners = false; 1024 mView.dispatchCollectViewAttributes(attachInfo, 0); 1025 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1026 WindowManager.LayoutParams params = mWindowAttributes; 1027 if (attachInfo.mKeepScreenOn != oldScreenOn 1028 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1029 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1030 applyKeepScreenOnFlag(params); 1031 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1032 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1033 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1034 return true; 1035 } 1036 } 1037 return false; 1038 } 1039 1040 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1041 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1042 int childWidthMeasureSpec; 1043 int childHeightMeasureSpec; 1044 boolean windowSizeMayChange = false; 1045 1046 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1047 "Measuring " + host + " in display " + desiredWindowWidth 1048 + "x" + desiredWindowHeight + "..."); 1049 1050 boolean goodMeasure = false; 1051 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1052 // On large screens, we don't want to allow dialogs to just 1053 // stretch to fill the entire width of the screen to display 1054 // one line of text. First try doing the layout at a smaller 1055 // size to see if it will fit. 1056 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1057 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1058 int baseSize = 0; 1059 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1060 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1061 } 1062 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1063 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1064 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1065 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1066 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1067 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1068 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1069 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1070 goodMeasure = true; 1071 } else { 1072 // Didn't fit in that size... try expanding a bit. 1073 baseSize = (baseSize+desiredWindowWidth)/2; 1074 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1075 + baseSize); 1076 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1077 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1078 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1079 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1080 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1081 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1082 goodMeasure = true; 1083 } 1084 } 1085 } 1086 } 1087 1088 if (!goodMeasure) { 1089 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1090 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1091 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1092 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1093 windowSizeMayChange = true; 1094 } 1095 } 1096 1097 if (DBG) { 1098 System.out.println("======================================"); 1099 System.out.println("performTraversals -- after measure"); 1100 host.debug(); 1101 } 1102 1103 return windowSizeMayChange; 1104 } 1105 1106 private void performTraversals() { 1107 // cache mView since it is used so much below... 1108 final View host = mView; 1109 1110 if (DBG) { 1111 System.out.println("======================================"); 1112 System.out.println("performTraversals"); 1113 host.debug(); 1114 } 1115 1116 if (host == null || !mAdded) 1117 return; 1118 1119 mIsInTraversal = true; 1120 mWillDrawSoon = true; 1121 boolean windowSizeMayChange = false; 1122 boolean newSurface = false; 1123 boolean surfaceChanged = false; 1124 WindowManager.LayoutParams lp = mWindowAttributes; 1125 1126 int desiredWindowWidth; 1127 int desiredWindowHeight; 1128 1129 final View.AttachInfo attachInfo = mAttachInfo; 1130 1131 final int viewVisibility = getHostVisibility(); 1132 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1133 || mNewSurfaceNeeded; 1134 1135 WindowManager.LayoutParams params = null; 1136 if (mWindowAttributesChanged) { 1137 mWindowAttributesChanged = false; 1138 surfaceChanged = true; 1139 params = lp; 1140 } 1141 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1142 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1143 params = lp; 1144 mFullRedrawNeeded = true; 1145 mLayoutRequested = true; 1146 if (mLastInCompatMode) { 1147 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1148 mLastInCompatMode = false; 1149 } else { 1150 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1151 mLastInCompatMode = true; 1152 } 1153 } 1154 1155 mWindowAttributesChangesFlag = 0; 1156 1157 Rect frame = mWinFrame; 1158 if (mFirst) { 1159 mFullRedrawNeeded = true; 1160 mLayoutRequested = true; 1161 1162 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1163 // NOTE -- system code, won't try to do compat mode. 1164 Point size = new Point(); 1165 mDisplay.getRealSize(size); 1166 desiredWindowWidth = size.x; 1167 desiredWindowHeight = size.y; 1168 } else { 1169 DisplayMetrics packageMetrics = 1170 mView.getContext().getResources().getDisplayMetrics(); 1171 desiredWindowWidth = packageMetrics.widthPixels; 1172 desiredWindowHeight = packageMetrics.heightPixels; 1173 } 1174 1175 // For the very first time, tell the view hierarchy that it 1176 // is attached to the window. Note that at this point the surface 1177 // object is not initialized to its backing store, but soon it 1178 // will be (assuming the window is visible). 1179 attachInfo.mSurface = mSurface; 1180 // We used to use the following condition to choose 32 bits drawing caches: 1181 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1182 // However, windows are now always 32 bits by default, so choose 32 bits 1183 attachInfo.mUse32BitDrawingCache = true; 1184 attachInfo.mHasWindowFocus = false; 1185 attachInfo.mWindowVisibility = viewVisibility; 1186 attachInfo.mRecomputeGlobalAttributes = false; 1187 viewVisibilityChanged = false; 1188 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1189 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1190 // Set the layout direction if it has not been set before (inherit is the default) 1191 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1192 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1193 } 1194 host.dispatchAttachedToWindow(attachInfo, 0); 1195 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1196 host.fitSystemWindows(mFitSystemWindowsInsets); 1197 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1198 1199 } else { 1200 desiredWindowWidth = frame.width(); 1201 desiredWindowHeight = frame.height(); 1202 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1203 if (DEBUG_ORIENTATION) Log.v(TAG, 1204 "View " + host + " resized to: " + frame); 1205 mFullRedrawNeeded = true; 1206 mLayoutRequested = true; 1207 windowSizeMayChange = true; 1208 } 1209 } 1210 1211 if (viewVisibilityChanged) { 1212 attachInfo.mWindowVisibility = viewVisibility; 1213 host.dispatchWindowVisibilityChanged(viewVisibility); 1214 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1215 destroyHardwareResources(); 1216 } 1217 if (viewVisibility == View.GONE) { 1218 // After making a window gone, we will count it as being 1219 // shown for the first time the next time it gets focus. 1220 mHasHadWindowFocus = false; 1221 } 1222 } 1223 1224 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1225 getRunQueue().executeActions(attachInfo.mHandler); 1226 1227 boolean insetsChanged = false; 1228 1229 boolean layoutRequested = mLayoutRequested && !mStopped; 1230 if (layoutRequested) { 1231 1232 final Resources res = mView.getContext().getResources(); 1233 1234 if (mFirst) { 1235 // make sure touch mode code executes by setting cached value 1236 // to opposite of the added touch mode. 1237 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1238 ensureTouchModeLocally(mAddedTouchMode); 1239 } else { 1240 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1241 insetsChanged = true; 1242 } 1243 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1244 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1245 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1246 + mAttachInfo.mVisibleInsets); 1247 } 1248 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1249 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1250 windowSizeMayChange = true; 1251 1252 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1253 // NOTE -- system code, won't try to do compat mode. 1254 Point size = new Point(); 1255 mDisplay.getRealSize(size); 1256 desiredWindowWidth = size.x; 1257 desiredWindowHeight = size.y; 1258 } else { 1259 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1260 desiredWindowWidth = packageMetrics.widthPixels; 1261 desiredWindowHeight = packageMetrics.heightPixels; 1262 } 1263 } 1264 } 1265 1266 // Ask host how big it wants to be 1267 windowSizeMayChange |= measureHierarchy(host, lp, res, 1268 desiredWindowWidth, desiredWindowHeight); 1269 } 1270 1271 if (collectViewAttributes()) { 1272 params = lp; 1273 } 1274 if (attachInfo.mForceReportNewAttributes) { 1275 attachInfo.mForceReportNewAttributes = false; 1276 params = lp; 1277 } 1278 1279 if (mFirst || attachInfo.mViewVisibilityChanged) { 1280 attachInfo.mViewVisibilityChanged = false; 1281 int resizeMode = mSoftInputMode & 1282 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1283 // If we are in auto resize mode, then we need to determine 1284 // what mode to use now. 1285 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1286 final int N = attachInfo.mScrollContainers.size(); 1287 for (int i=0; i<N; i++) { 1288 if (attachInfo.mScrollContainers.get(i).isShown()) { 1289 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1290 } 1291 } 1292 if (resizeMode == 0) { 1293 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1294 } 1295 if ((lp.softInputMode & 1296 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1297 lp.softInputMode = (lp.softInputMode & 1298 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1299 resizeMode; 1300 params = lp; 1301 } 1302 } 1303 } 1304 1305 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1306 if (!PixelFormat.formatHasAlpha(params.format)) { 1307 params.format = PixelFormat.TRANSLUCENT; 1308 } 1309 } 1310 1311 if (mFitSystemWindowsRequested) { 1312 mFitSystemWindowsRequested = false; 1313 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1314 host.fitSystemWindows(mFitSystemWindowsInsets); 1315 if (mLayoutRequested) { 1316 // Short-circuit catching a new layout request here, so 1317 // we don't need to go through two layout passes when things 1318 // change due to fitting system windows, which can happen a lot. 1319 windowSizeMayChange |= measureHierarchy(host, lp, 1320 mView.getContext().getResources(), 1321 desiredWindowWidth, desiredWindowHeight); 1322 } 1323 } 1324 1325 if (layoutRequested) { 1326 // Clear this now, so that if anything requests a layout in the 1327 // rest of this function we will catch it and re-run a full 1328 // layout pass. 1329 mLayoutRequested = false; 1330 } 1331 1332 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1333 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1334 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1335 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1336 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1337 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1338 1339 final boolean computesInternalInsets = 1340 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1341 1342 boolean insetsPending = false; 1343 int relayoutResult = 0; 1344 1345 if (mFirst || windowShouldResize || insetsChanged || 1346 viewVisibilityChanged || params != null) { 1347 1348 if (viewVisibility == View.VISIBLE) { 1349 // If this window is giving internal insets to the window 1350 // manager, and it is being added or changing its visibility, 1351 // then we want to first give the window manager "fake" 1352 // insets to cause it to effectively ignore the content of 1353 // the window during layout. This avoids it briefly causing 1354 // other windows to resize/move based on the raw frame of the 1355 // window, waiting until we can finish laying out this window 1356 // and get back to the window manager with the ultimately 1357 // computed insets. 1358 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1359 } 1360 1361 if (mSurfaceHolder != null) { 1362 mSurfaceHolder.mSurfaceLock.lock(); 1363 mDrawingAllowed = true; 1364 } 1365 1366 boolean hwInitialized = false; 1367 boolean contentInsetsChanged = false; 1368 boolean visibleInsetsChanged; 1369 boolean hadSurface = mSurface.isValid(); 1370 1371 try { 1372 if (DEBUG_LAYOUT) { 1373 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1374 host.getMeasuredHeight() + ", params=" + params); 1375 } 1376 1377 final int surfaceGenerationId = mSurface.getGenerationId(); 1378 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1379 1380 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1381 + " content=" + mPendingContentInsets.toShortString() 1382 + " visible=" + mPendingVisibleInsets.toShortString() 1383 + " surface=" + mSurface); 1384 1385 if (mPendingConfiguration.seq != 0) { 1386 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1387 + mPendingConfiguration); 1388 updateConfiguration(mPendingConfiguration, !mFirst); 1389 mPendingConfiguration.seq = 0; 1390 } 1391 1392 contentInsetsChanged = !mPendingContentInsets.equals( 1393 mAttachInfo.mContentInsets); 1394 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1395 mAttachInfo.mVisibleInsets); 1396 if (contentInsetsChanged) { 1397 if (mWidth > 0 && mHeight > 0 && lp != null && 1398 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1399 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1400 mSurface != null && mSurface.isValid() && 1401 !mAttachInfo.mTurnOffWindowResizeAnim && 1402 mAttachInfo.mHardwareRenderer != null && 1403 mAttachInfo.mHardwareRenderer.isEnabled() && 1404 mAttachInfo.mHardwareRenderer.validate() && 1405 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1406 1407 disposeResizeBuffer(); 1408 1409 boolean completed = false; 1410 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1411 HardwareCanvas layerCanvas = null; 1412 try { 1413 if (mResizeBuffer == null) { 1414 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1415 mWidth, mHeight, false); 1416 } else if (mResizeBuffer.getWidth() != mWidth || 1417 mResizeBuffer.getHeight() != mHeight) { 1418 mResizeBuffer.resize(mWidth, mHeight); 1419 } 1420 // TODO: should handle create/resize failure 1421 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1422 layerCanvas.setViewport(mWidth, mHeight); 1423 layerCanvas.onPreDraw(null); 1424 final int restoreCount = layerCanvas.save(); 1425 1426 int yoff; 1427 final boolean scrolling = mScroller != null 1428 && mScroller.computeScrollOffset(); 1429 if (scrolling) { 1430 yoff = mScroller.getCurrY(); 1431 mScroller.abortAnimation(); 1432 } else { 1433 yoff = mScrollY; 1434 } 1435 1436 layerCanvas.translate(0, -yoff); 1437 if (mTranslator != null) { 1438 mTranslator.translateCanvas(layerCanvas); 1439 } 1440 1441 DisplayList displayList = mView.mDisplayList; 1442 if (displayList != null) { 1443 layerCanvas.drawDisplayList(displayList, null, 1444 DisplayList.FLAG_CLIP_CHILDREN); 1445 } else { 1446 mView.draw(layerCanvas); 1447 } 1448 1449 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1450 1451 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1452 mResizeBufferDuration = mView.getResources().getInteger( 1453 com.android.internal.R.integer.config_mediumAnimTime); 1454 completed = true; 1455 1456 layerCanvas.restoreToCount(restoreCount); 1457 } catch (OutOfMemoryError e) { 1458 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1459 } finally { 1460 if (layerCanvas != null) { 1461 layerCanvas.onPostDraw(); 1462 } 1463 if (mResizeBuffer != null) { 1464 mResizeBuffer.end(hwRendererCanvas); 1465 if (!completed) { 1466 mResizeBuffer.destroy(); 1467 mResizeBuffer = null; 1468 } 1469 } 1470 } 1471 } 1472 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1473 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1474 + mAttachInfo.mContentInsets); 1475 } 1476 if (contentInsetsChanged || mLastSystemUiVisibility != 1477 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1478 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1479 mFitSystemWindowsRequested = false; 1480 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1481 host.fitSystemWindows(mFitSystemWindowsInsets); 1482 } 1483 if (visibleInsetsChanged) { 1484 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1485 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1486 + mAttachInfo.mVisibleInsets); 1487 } 1488 1489 if (!hadSurface) { 1490 if (mSurface.isValid()) { 1491 // If we are creating a new surface, then we need to 1492 // completely redraw it. Also, when we get to the 1493 // point of drawing it we will hold off and schedule 1494 // a new traversal instead. This is so we can tell the 1495 // window manager about all of the windows being displayed 1496 // before actually drawing them, so it can display then 1497 // all at once. 1498 newSurface = true; 1499 mFullRedrawNeeded = true; 1500 mPreviousTransparentRegion.setEmpty(); 1501 1502 if (mAttachInfo.mHardwareRenderer != null) { 1503 try { 1504 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1505 mHolder.getSurface()); 1506 } catch (Surface.OutOfResourcesException e) { 1507 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1508 try { 1509 if (!mWindowSession.outOfMemory(mWindow) && 1510 Process.myUid() != Process.SYSTEM_UID) { 1511 Slog.w(TAG, "No processes killed for memory; killing self"); 1512 Process.killProcess(Process.myPid()); 1513 } 1514 } catch (RemoteException ex) { 1515 } 1516 mLayoutRequested = true; // ask wm for a new surface next time. 1517 return; 1518 } 1519 } 1520 } 1521 } else if (!mSurface.isValid()) { 1522 // If the surface has been removed, then reset the scroll 1523 // positions. 1524 mLastScrolledFocus = null; 1525 mScrollY = mCurScrollY = 0; 1526 if (mScroller != null) { 1527 mScroller.abortAnimation(); 1528 } 1529 disposeResizeBuffer(); 1530 // Our surface is gone 1531 if (mAttachInfo.mHardwareRenderer != null && 1532 mAttachInfo.mHardwareRenderer.isEnabled()) { 1533 mAttachInfo.mHardwareRenderer.destroy(true); 1534 } 1535 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1536 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1537 mFullRedrawNeeded = true; 1538 try { 1539 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1540 } catch (Surface.OutOfResourcesException e) { 1541 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1542 try { 1543 if (!mWindowSession.outOfMemory(mWindow)) { 1544 Slog.w(TAG, "No processes killed for memory; killing self"); 1545 Process.killProcess(Process.myPid()); 1546 } 1547 } catch (RemoteException ex) { 1548 } 1549 mLayoutRequested = true; // ask wm for a new surface next time. 1550 return; 1551 } 1552 } 1553 } catch (RemoteException e) { 1554 } 1555 1556 if (DEBUG_ORIENTATION) Log.v( 1557 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1558 1559 attachInfo.mWindowLeft = frame.left; 1560 attachInfo.mWindowTop = frame.top; 1561 1562 // !!FIXME!! This next section handles the case where we did not get the 1563 // window size we asked for. We should avoid this by getting a maximum size from 1564 // the window session beforehand. 1565 if (mWidth != frame.width() || mHeight != frame.height()) { 1566 mWidth = frame.width(); 1567 mHeight = frame.height(); 1568 } 1569 1570 if (mSurfaceHolder != null) { 1571 // The app owns the surface; tell it about what is going on. 1572 if (mSurface.isValid()) { 1573 // XXX .copyFrom() doesn't work! 1574 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1575 mSurfaceHolder.mSurface = mSurface; 1576 } 1577 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1578 mSurfaceHolder.mSurfaceLock.unlock(); 1579 if (mSurface.isValid()) { 1580 if (!hadSurface) { 1581 mSurfaceHolder.ungetCallbacks(); 1582 1583 mIsCreating = true; 1584 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1585 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1586 if (callbacks != null) { 1587 for (SurfaceHolder.Callback c : callbacks) { 1588 c.surfaceCreated(mSurfaceHolder); 1589 } 1590 } 1591 surfaceChanged = true; 1592 } 1593 if (surfaceChanged) { 1594 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1595 lp.format, mWidth, mHeight); 1596 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1597 if (callbacks != null) { 1598 for (SurfaceHolder.Callback c : callbacks) { 1599 c.surfaceChanged(mSurfaceHolder, lp.format, 1600 mWidth, mHeight); 1601 } 1602 } 1603 } 1604 mIsCreating = false; 1605 } else if (hadSurface) { 1606 mSurfaceHolder.ungetCallbacks(); 1607 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1608 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1609 if (callbacks != null) { 1610 for (SurfaceHolder.Callback c : callbacks) { 1611 c.surfaceDestroyed(mSurfaceHolder); 1612 } 1613 } 1614 mSurfaceHolder.mSurfaceLock.lock(); 1615 try { 1616 mSurfaceHolder.mSurface = new Surface(); 1617 } finally { 1618 mSurfaceHolder.mSurfaceLock.unlock(); 1619 } 1620 } 1621 } 1622 1623 if (mAttachInfo.mHardwareRenderer != null && 1624 mAttachInfo.mHardwareRenderer.isEnabled()) { 1625 if (hwInitialized || windowShouldResize || 1626 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1627 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1628 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1629 if (!hwInitialized) { 1630 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1631 mFullRedrawNeeded = true; 1632 } 1633 } 1634 } 1635 1636 if (!mStopped) { 1637 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1638 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1639 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1640 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1641 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1642 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1643 1644 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1645 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1646 + " mHeight=" + mHeight 1647 + " measuredHeight=" + host.getMeasuredHeight() 1648 + " coveredInsetsChanged=" + contentInsetsChanged); 1649 1650 // Ask host how big it wants to be 1651 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1652 1653 // Implementation of weights from WindowManager.LayoutParams 1654 // We just grow the dimensions as needed and re-measure if 1655 // needs be 1656 int width = host.getMeasuredWidth(); 1657 int height = host.getMeasuredHeight(); 1658 boolean measureAgain = false; 1659 1660 if (lp.horizontalWeight > 0.0f) { 1661 width += (int) ((mWidth - width) * lp.horizontalWeight); 1662 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1663 MeasureSpec.EXACTLY); 1664 measureAgain = true; 1665 } 1666 if (lp.verticalWeight > 0.0f) { 1667 height += (int) ((mHeight - height) * lp.verticalWeight); 1668 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1669 MeasureSpec.EXACTLY); 1670 measureAgain = true; 1671 } 1672 1673 if (measureAgain) { 1674 if (DEBUG_LAYOUT) Log.v(TAG, 1675 "And hey let's measure once more: width=" + width 1676 + " height=" + height); 1677 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1678 } 1679 1680 layoutRequested = true; 1681 } 1682 } 1683 } else { 1684 // Not the first pass and no window/insets/visibility change but the window 1685 // may have moved and we need check that and if so to update the left and right 1686 // in the attach info. We translate only the window frame since on window move 1687 // the window manager tells us only for the new frame but the insets are the 1688 // same and we do not want to translate them more than once. 1689 1690 // TODO: Well, we are checking whether the frame has changed similarly 1691 // to how this is done for the insets. This is however incorrect since 1692 // the insets and the frame are translated. For example, the old frame 1693 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1694 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1695 // true since we are comparing a not translated value to a translated one. 1696 // This scenario is rare but we may want to fix that. 1697 1698 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1699 || attachInfo.mWindowTop != frame.top); 1700 if (windowMoved) { 1701 if (mTranslator != null) { 1702 mTranslator.translateRectInScreenToAppWinFrame(frame); 1703 } 1704 attachInfo.mWindowLeft = frame.left; 1705 attachInfo.mWindowTop = frame.top; 1706 } 1707 } 1708 1709 final boolean didLayout = layoutRequested && !mStopped; 1710 boolean triggerGlobalLayoutListener = didLayout 1711 || attachInfo.mRecomputeGlobalAttributes; 1712 if (didLayout) { 1713 performLayout(); 1714 1715 // By this point all views have been sized and positionned 1716 // We can compute the transparent area 1717 1718 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1719 // start out transparent 1720 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1721 host.getLocationInWindow(mTmpLocation); 1722 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1723 mTmpLocation[0] + host.mRight - host.mLeft, 1724 mTmpLocation[1] + host.mBottom - host.mTop); 1725 1726 host.gatherTransparentRegion(mTransparentRegion); 1727 if (mTranslator != null) { 1728 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1729 } 1730 1731 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1732 mPreviousTransparentRegion.set(mTransparentRegion); 1733 // reconfigure window manager 1734 try { 1735 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1736 } catch (RemoteException e) { 1737 } 1738 } 1739 } 1740 1741 if (DBG) { 1742 System.out.println("======================================"); 1743 System.out.println("performTraversals -- after setFrame"); 1744 host.debug(); 1745 } 1746 } 1747 1748 if (triggerGlobalLayoutListener) { 1749 attachInfo.mRecomputeGlobalAttributes = false; 1750 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1751 1752 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1753 postSendWindowContentChangedCallback(mView); 1754 } 1755 } 1756 1757 if (computesInternalInsets) { 1758 // Clear the original insets. 1759 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1760 insets.reset(); 1761 1762 // Compute new insets in place. 1763 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1764 1765 // Tell the window manager. 1766 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1767 mLastGivenInsets.set(insets); 1768 1769 // Translate insets to screen coordinates if needed. 1770 final Rect contentInsets; 1771 final Rect visibleInsets; 1772 final Region touchableRegion; 1773 if (mTranslator != null) { 1774 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1775 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1776 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1777 } else { 1778 contentInsets = insets.contentInsets; 1779 visibleInsets = insets.visibleInsets; 1780 touchableRegion = insets.touchableRegion; 1781 } 1782 1783 try { 1784 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1785 contentInsets, visibleInsets, touchableRegion); 1786 } catch (RemoteException e) { 1787 } 1788 } 1789 } 1790 1791 boolean skipDraw = false; 1792 1793 if (mFirst) { 1794 // handle first focus request 1795 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1796 + mView.hasFocus()); 1797 if (mView != null) { 1798 if (!mView.hasFocus()) { 1799 mView.requestFocus(View.FOCUS_FORWARD); 1800 mFocusedView = mRealFocusedView = mView.findFocus(); 1801 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1802 + mFocusedView); 1803 } else { 1804 mRealFocusedView = mView.findFocus(); 1805 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1806 + mRealFocusedView); 1807 } 1808 } 1809 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1810 // The first time we relayout the window, if the system is 1811 // doing window animations, we want to hold of on any future 1812 // draws until the animation is done. 1813 mWindowsAnimating = true; 1814 } 1815 } else if (mWindowsAnimating) { 1816 skipDraw = true; 1817 } 1818 1819 mFirst = false; 1820 mWillDrawSoon = false; 1821 mNewSurfaceNeeded = false; 1822 mViewVisibility = viewVisibility; 1823 1824 if (mAttachInfo.mHasWindowFocus) { 1825 final boolean imTarget = WindowManager.LayoutParams 1826 .mayUseInputMethod(mWindowAttributes.flags); 1827 if (imTarget != mLastWasImTarget) { 1828 mLastWasImTarget = imTarget; 1829 InputMethodManager imm = InputMethodManager.peekInstance(); 1830 if (imm != null && imTarget) { 1831 imm.startGettingWindowFocus(mView); 1832 imm.onWindowFocus(mView, mView.findFocus(), 1833 mWindowAttributes.softInputMode, 1834 !mHasHadWindowFocus, mWindowAttributes.flags); 1835 } 1836 } 1837 } 1838 1839 // Remember if we must report the next draw. 1840 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1841 mReportNextDraw = true; 1842 } 1843 1844 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1845 viewVisibility != View.VISIBLE; 1846 1847 if (!cancelDraw && !newSurface) { 1848 if (!skipDraw || mReportNextDraw) { 1849 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1850 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1851 mPendingTransitions.get(i).startChangingAnimations(); 1852 } 1853 mPendingTransitions.clear(); 1854 } 1855 1856 performDraw(); 1857 } 1858 } else { 1859 if (viewVisibility == View.VISIBLE) { 1860 // Try again 1861 scheduleTraversals(); 1862 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1863 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1864 mPendingTransitions.get(i).endChangingAnimations(); 1865 } 1866 mPendingTransitions.clear(); 1867 } 1868 } 1869 1870 mIsInTraversal = false; 1871 } 1872 1873 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1874 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1875 try { 1876 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1877 } finally { 1878 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1879 } 1880 } 1881 1882 private void performLayout() { 1883 mLayoutRequested = false; 1884 mScrollMayChange = true; 1885 1886 final View host = mView; 1887 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1888 Log.v(TAG, "Laying out " + host + " to (" + 1889 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1890 } 1891 1892 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1893 try { 1894 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1895 } finally { 1896 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1897 } 1898 } 1899 1900 public void requestTransparentRegion(View child) { 1901 // the test below should not fail unless someone is messing with us 1902 checkThread(); 1903 if (mView == child) { 1904 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1905 // Need to make sure we re-evaluate the window attributes next 1906 // time around, to ensure the window has the correct format. 1907 mWindowAttributesChanged = true; 1908 mWindowAttributesChangesFlag = 0; 1909 requestLayout(); 1910 } 1911 } 1912 1913 /** 1914 * Figures out the measure spec for the root view in a window based on it's 1915 * layout params. 1916 * 1917 * @param windowSize 1918 * The available width or height of the window 1919 * 1920 * @param rootDimension 1921 * The layout params for one dimension (width or height) of the 1922 * window. 1923 * 1924 * @return The measure spec to use to measure the root view. 1925 */ 1926 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1927 int measureSpec; 1928 switch (rootDimension) { 1929 1930 case ViewGroup.LayoutParams.MATCH_PARENT: 1931 // Window can't resize. Force root view to be windowSize. 1932 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1933 break; 1934 case ViewGroup.LayoutParams.WRAP_CONTENT: 1935 // Window can resize. Set max size for root view. 1936 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1937 break; 1938 default: 1939 // Window wants to be an exact size. Force root view to be that size. 1940 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1941 break; 1942 } 1943 return measureSpec; 1944 } 1945 1946 int mHardwareYOffset; 1947 int mResizeAlpha; 1948 final Paint mResizePaint = new Paint(); 1949 1950 public void onHardwarePreDraw(HardwareCanvas canvas) { 1951 canvas.translate(0, -mHardwareYOffset); 1952 } 1953 1954 public void onHardwarePostDraw(HardwareCanvas canvas) { 1955 if (mResizeBuffer != null) { 1956 mResizePaint.setAlpha(mResizeAlpha); 1957 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1958 } 1959 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1960 } 1961 1962 /** 1963 * @hide 1964 */ 1965 void outputDisplayList(View view) { 1966 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1967 DisplayList displayList = view.getDisplayList(); 1968 if (displayList != null) { 1969 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1970 } 1971 } 1972 } 1973 1974 /** 1975 * @see #PROPERTY_PROFILE_RENDERING 1976 */ 1977 private void profileRendering(boolean enabled) { 1978 if (mProfileRendering) { 1979 mRenderProfilingEnabled = enabled; 1980 if (mRenderProfiler == null) { 1981 mRenderProfiler = new Thread(new Runnable() { 1982 @Override 1983 public void run() { 1984 Log.d(TAG, "Starting profiling thread"); 1985 while (mRenderProfilingEnabled) { 1986 mAttachInfo.mHandler.post(new Runnable() { 1987 @Override 1988 public void run() { 1989 mDirty.set(0, 0, mWidth, mHeight); 1990 scheduleTraversals(); 1991 } 1992 }); 1993 try { 1994 // TODO: This should use vsync when we get an API 1995 Thread.sleep(15); 1996 } catch (InterruptedException e) { 1997 Log.d(TAG, "Exiting profiling thread"); 1998 } 1999 } 2000 } 2001 }, "Rendering Profiler"); 2002 mRenderProfiler.start(); 2003 } else { 2004 mRenderProfiler.interrupt(); 2005 mRenderProfiler = null; 2006 } 2007 } 2008 } 2009 2010 /** 2011 * Called from draw() when DEBUG_FPS is enabled 2012 */ 2013 private void trackFPS() { 2014 // Tracks frames per second drawn. First value in a series of draws may be bogus 2015 // because it down not account for the intervening idle time 2016 long nowTime = System.currentTimeMillis(); 2017 if (mFpsStartTime < 0) { 2018 mFpsStartTime = mFpsPrevTime = nowTime; 2019 mFpsNumFrames = 0; 2020 } else { 2021 ++mFpsNumFrames; 2022 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2023 long frameTime = nowTime - mFpsPrevTime; 2024 long totalTime = nowTime - mFpsStartTime; 2025 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2026 mFpsPrevTime = nowTime; 2027 if (totalTime > 1000) { 2028 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2029 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2030 mFpsStartTime = nowTime; 2031 mFpsNumFrames = 0; 2032 } 2033 } 2034 } 2035 2036 private void performDraw() { 2037 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2038 return; 2039 } 2040 2041 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2042 mFullRedrawNeeded = false; 2043 2044 mIsDrawing = true; 2045 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2046 try { 2047 draw(fullRedrawNeeded); 2048 } finally { 2049 mIsDrawing = false; 2050 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2051 } 2052 2053 if (mReportNextDraw) { 2054 mReportNextDraw = false; 2055 2056 if (LOCAL_LOGV) { 2057 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2058 } 2059 if (mSurfaceHolder != null && mSurface.isValid()) { 2060 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2061 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2062 if (callbacks != null) { 2063 for (SurfaceHolder.Callback c : callbacks) { 2064 if (c instanceof SurfaceHolder.Callback2) { 2065 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2066 mSurfaceHolder); 2067 } 2068 } 2069 } 2070 } 2071 try { 2072 mWindowSession.finishDrawing(mWindow); 2073 } catch (RemoteException e) { 2074 } 2075 } 2076 } 2077 2078 private void draw(boolean fullRedrawNeeded) { 2079 Surface surface = mSurface; 2080 if (surface == null || !surface.isValid()) { 2081 return; 2082 } 2083 2084 if (DEBUG_FPS) { 2085 trackFPS(); 2086 } 2087 2088 if (!sFirstDrawComplete) { 2089 synchronized (sFirstDrawHandlers) { 2090 sFirstDrawComplete = true; 2091 final int count = sFirstDrawHandlers.size(); 2092 for (int i = 0; i< count; i++) { 2093 mHandler.post(sFirstDrawHandlers.get(i)); 2094 } 2095 } 2096 } 2097 2098 scrollToRectOrFocus(null, false); 2099 2100 final AttachInfo attachInfo = mAttachInfo; 2101 if (attachInfo.mViewScrollChanged) { 2102 attachInfo.mViewScrollChanged = false; 2103 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2104 } 2105 2106 int yoff; 2107 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2108 if (animating) { 2109 yoff = mScroller.getCurrY(); 2110 } else { 2111 yoff = mScrollY; 2112 } 2113 if (mCurScrollY != yoff) { 2114 mCurScrollY = yoff; 2115 fullRedrawNeeded = true; 2116 } 2117 2118 final float appScale = attachInfo.mApplicationScale; 2119 final boolean scalingRequired = attachInfo.mScalingRequired; 2120 2121 int resizeAlpha = 0; 2122 if (mResizeBuffer != null) { 2123 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2124 if (deltaTime < mResizeBufferDuration) { 2125 float amt = deltaTime/(float) mResizeBufferDuration; 2126 amt = mResizeInterpolator.getInterpolation(amt); 2127 animating = true; 2128 resizeAlpha = 255 - (int)(amt*255); 2129 } else { 2130 disposeResizeBuffer(); 2131 } 2132 } 2133 2134 final Rect dirty = mDirty; 2135 if (mSurfaceHolder != null) { 2136 // The app owns the surface, we won't draw. 2137 dirty.setEmpty(); 2138 if (animating) { 2139 if (mScroller != null) { 2140 mScroller.abortAnimation(); 2141 } 2142 disposeResizeBuffer(); 2143 } 2144 return; 2145 } 2146 2147 if (fullRedrawNeeded) { 2148 attachInfo.mIgnoreDirtyState = true; 2149 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2150 } 2151 2152 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2153 Log.v(TAG, "Draw " + mView + "/" 2154 + mWindowAttributes.getTitle() 2155 + ": dirty={" + dirty.left + "," + dirty.top 2156 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2157 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2158 appScale + ", width=" + mWidth + ", height=" + mHeight); 2159 } 2160 2161 attachInfo.mTreeObserver.dispatchOnDraw(); 2162 2163 if (!dirty.isEmpty() || mIsAnimating) { 2164 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2165 // Draw with hardware renderer. 2166 mIsAnimating = false; 2167 mHardwareYOffset = yoff; 2168 mResizeAlpha = resizeAlpha; 2169 2170 mCurrentDirty.set(dirty); 2171 mCurrentDirty.union(mPreviousDirty); 2172 mPreviousDirty.set(dirty); 2173 dirty.setEmpty(); 2174 2175 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2176 animating ? null : mCurrentDirty)) { 2177 mPreviousDirty.set(0, 0, mWidth, mHeight); 2178 } 2179 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2180 return; 2181 } 2182 } 2183 2184 if (animating) { 2185 mFullRedrawNeeded = true; 2186 scheduleTraversals(); 2187 } 2188 } 2189 2190 /** 2191 * @return true if drawing was succesfull, false if an error occurred 2192 */ 2193 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2194 boolean scalingRequired, Rect dirty) { 2195 2196 // If we get here with a disabled & requested hardware renderer, something went 2197 // wrong (an invalidate posted right before we destroyed the hardware surface 2198 // for instance) so we should just bail out. Locking the surface with software 2199 // rendering at this point would lock it forever and prevent hardware renderer 2200 // from doing its job when it comes back. 2201 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2202 attachInfo.mHardwareRenderer.isRequested()) { 2203 mFullRedrawNeeded = true; 2204 scheduleTraversals(); 2205 return false; 2206 } 2207 2208 // Draw with software renderer. 2209 Canvas canvas; 2210 try { 2211 int left = dirty.left; 2212 int top = dirty.top; 2213 int right = dirty.right; 2214 int bottom = dirty.bottom; 2215 2216 canvas = mSurface.lockCanvas(dirty); 2217 2218 if (left != dirty.left || top != dirty.top || right != dirty.right || 2219 bottom != dirty.bottom) { 2220 attachInfo.mIgnoreDirtyState = true; 2221 } 2222 2223 // TODO: Do this in native 2224 canvas.setDensity(mDensity); 2225 } catch (Surface.OutOfResourcesException e) { 2226 Log.e(TAG, "OutOfResourcesException locking surface", e); 2227 try { 2228 if (!mWindowSession.outOfMemory(mWindow)) { 2229 Slog.w(TAG, "No processes killed for memory; killing self"); 2230 Process.killProcess(Process.myPid()); 2231 } 2232 } catch (RemoteException ex) { 2233 } 2234 mLayoutRequested = true; // ask wm for a new surface next time. 2235 return false; 2236 } catch (IllegalArgumentException e) { 2237 Log.e(TAG, "Could not lock surface", e); 2238 // Don't assume this is due to out of memory, it could be 2239 // something else, and if it is something else then we could 2240 // kill stuff (or ourself) for no reason. 2241 mLayoutRequested = true; // ask wm for a new surface next time. 2242 return false; 2243 } 2244 2245 try { 2246 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2247 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2248 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2249 //canvas.drawARGB(255, 255, 0, 0); 2250 } 2251 2252 // If this bitmap's format includes an alpha channel, we 2253 // need to clear it before drawing so that the child will 2254 // properly re-composite its drawing on a transparent 2255 // background. This automatically respects the clip/dirty region 2256 // or 2257 // If we are applying an offset, we need to clear the area 2258 // where the offset doesn't appear to avoid having garbage 2259 // left in the blank areas. 2260 if (!canvas.isOpaque() || yoff != 0) { 2261 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2262 } 2263 2264 dirty.setEmpty(); 2265 mIsAnimating = false; 2266 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2267 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2268 2269 if (DEBUG_DRAW) { 2270 Context cxt = mView.getContext(); 2271 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2272 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2273 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2274 } 2275 try { 2276 canvas.translate(0, -yoff); 2277 if (mTranslator != null) { 2278 mTranslator.translateCanvas(canvas); 2279 } 2280 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2281 attachInfo.mSetIgnoreDirtyState = false; 2282 2283 mView.draw(canvas); 2284 2285 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2286 } finally { 2287 if (!attachInfo.mSetIgnoreDirtyState) { 2288 // Only clear the flag if it was not set during the mView.draw() call 2289 attachInfo.mIgnoreDirtyState = false; 2290 } 2291 } 2292 } finally { 2293 try { 2294 surface.unlockCanvasAndPost(canvas); 2295 } catch (IllegalArgumentException e) { 2296 Log.e(TAG, "Could not unlock surface", e); 2297 mLayoutRequested = true; // ask wm for a new surface next time. 2298 //noinspection ReturnInsideFinallyBlock 2299 return false; 2300 } 2301 2302 if (LOCAL_LOGV) { 2303 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2304 } 2305 } 2306 return true; 2307 } 2308 2309 /** 2310 * We want to draw a highlight around the current accessibility focused. 2311 * Since adding a style for all possible view is not a viable option we 2312 * have this specialized drawing method. 2313 * 2314 * Note: We are doing this here to be able to draw the highlight for 2315 * virtual views in addition to real ones. 2316 * 2317 * @param canvas The canvas on which to draw. 2318 */ 2319 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2320 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2321 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2322 return; 2323 } 2324 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2325 return; 2326 } 2327 Drawable drawable = getAccessibilityFocusedDrawable(); 2328 if (drawable == null) { 2329 return; 2330 } 2331 AccessibilityNodeProvider provider = 2332 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2333 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2334 if (provider == null) { 2335 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2336 } else { 2337 if (mAccessibilityFocusedVirtualView == null) { 2338 return; 2339 } 2340 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2341 } 2342 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2343 drawable.setBounds(bounds); 2344 drawable.draw(canvas); 2345 } 2346 2347 private Drawable getAccessibilityFocusedDrawable() { 2348 if (mAttachInfo != null) { 2349 // Lazily load the accessibility focus drawable. 2350 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2351 TypedValue value = new TypedValue(); 2352 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2353 R.attr.accessibilityFocusedDrawable, value, true); 2354 if (resolved) { 2355 mAttachInfo.mAccessibilityFocusDrawable = 2356 mView.mContext.getResources().getDrawable(value.resourceId); 2357 } 2358 } 2359 return mAttachInfo.mAccessibilityFocusDrawable; 2360 } 2361 return null; 2362 } 2363 2364 void invalidateDisplayLists() { 2365 final ArrayList<DisplayList> displayLists = mDisplayLists; 2366 final int count = displayLists.size(); 2367 2368 for (int i = 0; i < count; i++) { 2369 final DisplayList displayList = displayLists.get(i); 2370 displayList.invalidate(); 2371 displayList.clear(); 2372 } 2373 2374 displayLists.clear(); 2375 } 2376 2377 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2378 final View.AttachInfo attachInfo = mAttachInfo; 2379 final Rect ci = attachInfo.mContentInsets; 2380 final Rect vi = attachInfo.mVisibleInsets; 2381 int scrollY = 0; 2382 boolean handled = false; 2383 2384 if (vi.left > ci.left || vi.top > ci.top 2385 || vi.right > ci.right || vi.bottom > ci.bottom) { 2386 // We'll assume that we aren't going to change the scroll 2387 // offset, since we want to avoid that unless it is actually 2388 // going to make the focus visible... otherwise we scroll 2389 // all over the place. 2390 scrollY = mScrollY; 2391 // We can be called for two different situations: during a draw, 2392 // to update the scroll position if the focus has changed (in which 2393 // case 'rectangle' is null), or in response to a 2394 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2395 // is non-null and we just want to scroll to whatever that 2396 // rectangle is). 2397 View focus = mRealFocusedView; 2398 2399 // When in touch mode, focus points to the previously focused view, 2400 // which may have been removed from the view hierarchy. The following 2401 // line checks whether the view is still in our hierarchy. 2402 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2403 mRealFocusedView = null; 2404 return false; 2405 } 2406 2407 if (focus != mLastScrolledFocus) { 2408 // If the focus has changed, then ignore any requests to scroll 2409 // to a rectangle; first we want to make sure the entire focus 2410 // view is visible. 2411 rectangle = null; 2412 } 2413 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2414 + " rectangle=" + rectangle + " ci=" + ci 2415 + " vi=" + vi); 2416 if (focus == mLastScrolledFocus && !mScrollMayChange 2417 && rectangle == null) { 2418 // Optimization: if the focus hasn't changed since last 2419 // time, and no layout has happened, then just leave things 2420 // as they are. 2421 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2422 + mScrollY + " vi=" + vi.toShortString()); 2423 } else if (focus != null) { 2424 // We need to determine if the currently focused view is 2425 // within the visible part of the window and, if not, apply 2426 // a pan so it can be seen. 2427 mLastScrolledFocus = focus; 2428 mScrollMayChange = false; 2429 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2430 // Try to find the rectangle from the focus view. 2431 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2432 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2433 + mView.getWidth() + " h=" + mView.getHeight() 2434 + " ci=" + ci.toShortString() 2435 + " vi=" + vi.toShortString()); 2436 if (rectangle == null) { 2437 focus.getFocusedRect(mTempRect); 2438 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2439 + ": focusRect=" + mTempRect.toShortString()); 2440 if (mView instanceof ViewGroup) { 2441 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2442 focus, mTempRect); 2443 } 2444 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2445 "Focus in window: focusRect=" 2446 + mTempRect.toShortString() 2447 + " visRect=" + mVisRect.toShortString()); 2448 } else { 2449 mTempRect.set(rectangle); 2450 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2451 "Request scroll to rect: " 2452 + mTempRect.toShortString() 2453 + " visRect=" + mVisRect.toShortString()); 2454 } 2455 if (mTempRect.intersect(mVisRect)) { 2456 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2457 "Focus window visible rect: " 2458 + mTempRect.toShortString()); 2459 if (mTempRect.height() > 2460 (mView.getHeight()-vi.top-vi.bottom)) { 2461 // If the focus simply is not going to fit, then 2462 // best is probably just to leave things as-is. 2463 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2464 "Too tall; leaving scrollY=" + scrollY); 2465 } else if ((mTempRect.top-scrollY) < vi.top) { 2466 scrollY -= vi.top - (mTempRect.top-scrollY); 2467 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2468 "Top covered; scrollY=" + scrollY); 2469 } else if ((mTempRect.bottom-scrollY) 2470 > (mView.getHeight()-vi.bottom)) { 2471 scrollY += (mTempRect.bottom-scrollY) 2472 - (mView.getHeight()-vi.bottom); 2473 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2474 "Bottom covered; scrollY=" + scrollY); 2475 } 2476 handled = true; 2477 } 2478 } 2479 } 2480 } 2481 2482 if (scrollY != mScrollY) { 2483 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2484 + mScrollY + " , new=" + scrollY); 2485 if (!immediate && mResizeBuffer == null) { 2486 if (mScroller == null) { 2487 mScroller = new Scroller(mView.getContext()); 2488 } 2489 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2490 } else if (mScroller != null) { 2491 mScroller.abortAnimation(); 2492 } 2493 mScrollY = scrollY; 2494 } 2495 2496 return handled; 2497 } 2498 2499 /** 2500 * @hide 2501 */ 2502 public View getAccessibilityFocusedHost() { 2503 return mAccessibilityFocusedHost; 2504 } 2505 2506 /** 2507 * @hide 2508 */ 2509 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2510 return mAccessibilityFocusedVirtualView; 2511 } 2512 2513 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2514 // If we have a virtual view with accessibility focus we need 2515 // to clear the focus and invalidate the virtual view bounds. 2516 if (mAccessibilityFocusedVirtualView != null) { 2517 2518 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2519 View focusHost = mAccessibilityFocusedHost; 2520 focusHost.clearAccessibilityFocusNoCallbacks(); 2521 2522 // Wipe the state of the current accessibility focus since 2523 // the call into the provider to clear accessibility focus 2524 // will fire an accessibility event which will end up calling 2525 // this method and we want to have clean state when this 2526 // invocation happens. 2527 mAccessibilityFocusedHost = null; 2528 mAccessibilityFocusedVirtualView = null; 2529 2530 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2531 if (provider != null) { 2532 // Invalidate the area of the cleared accessibility focus. 2533 focusNode.getBoundsInParent(mTempRect); 2534 focusHost.invalidate(mTempRect); 2535 // Clear accessibility focus in the virtual node. 2536 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2537 focusNode.getSourceNodeId()); 2538 provider.performAction(virtualNodeId, 2539 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2540 } 2541 focusNode.recycle(); 2542 } 2543 if (mAccessibilityFocusedHost != null) { 2544 // Clear accessibility focus in the view. 2545 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2546 } 2547 2548 // Set the new focus host and node. 2549 mAccessibilityFocusedHost = view; 2550 mAccessibilityFocusedVirtualView = node; 2551 } 2552 2553 public void requestChildFocus(View child, View focused) { 2554 checkThread(); 2555 2556 if (DEBUG_INPUT_RESIZE) { 2557 Log.v(TAG, "Request child focus: focus now " + focused); 2558 } 2559 2560 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2561 scheduleTraversals(); 2562 2563 mFocusedView = mRealFocusedView = focused; 2564 } 2565 2566 public void clearChildFocus(View child) { 2567 checkThread(); 2568 2569 if (DEBUG_INPUT_RESIZE) { 2570 Log.v(TAG, "Clearing child focus"); 2571 } 2572 2573 mOldFocusedView = mFocusedView; 2574 2575 // Invoke the listener only if there is no view to take focus 2576 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2577 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2578 } 2579 2580 mFocusedView = mRealFocusedView = null; 2581 } 2582 2583 @Override 2584 public ViewParent getParentForAccessibility() { 2585 return null; 2586 } 2587 2588 public void focusableViewAvailable(View v) { 2589 checkThread(); 2590 if (mView != null) { 2591 if (!mView.hasFocus()) { 2592 v.requestFocus(); 2593 } else { 2594 // the one case where will transfer focus away from the current one 2595 // is if the current view is a view group that prefers to give focus 2596 // to its children first AND the view is a descendant of it. 2597 mFocusedView = mView.findFocus(); 2598 boolean descendantsHaveDibsOnFocus = 2599 (mFocusedView instanceof ViewGroup) && 2600 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2601 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2602 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2603 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2604 v.requestFocus(); 2605 } 2606 } 2607 } 2608 } 2609 2610 public void recomputeViewAttributes(View child) { 2611 checkThread(); 2612 if (mView == child) { 2613 mAttachInfo.mRecomputeGlobalAttributes = true; 2614 if (!mWillDrawSoon) { 2615 scheduleTraversals(); 2616 } 2617 } 2618 } 2619 2620 void dispatchDetachedFromWindow() { 2621 if (mView != null && mView.mAttachInfo != null) { 2622 if (mAttachInfo.mHardwareRenderer != null && 2623 mAttachInfo.mHardwareRenderer.isEnabled()) { 2624 mAttachInfo.mHardwareRenderer.validate(); 2625 } 2626 mView.dispatchDetachedFromWindow(); 2627 } 2628 2629 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2630 mAccessibilityManager.removeAccessibilityStateChangeListener( 2631 mAccessibilityInteractionConnectionManager); 2632 removeSendWindowContentChangedCallback(); 2633 2634 destroyHardwareRenderer(); 2635 2636 setAccessibilityFocus(null, null); 2637 2638 mView = null; 2639 mAttachInfo.mRootView = null; 2640 mAttachInfo.mSurface = null; 2641 2642 mSurface.release(); 2643 2644 if (mInputQueueCallback != null && mInputQueue != null) { 2645 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2646 mInputQueueCallback = null; 2647 mInputQueue = null; 2648 } else if (mInputEventReceiver != null) { 2649 mInputEventReceiver.dispose(); 2650 mInputEventReceiver = null; 2651 } 2652 try { 2653 mWindowSession.remove(mWindow); 2654 } catch (RemoteException e) { 2655 } 2656 2657 // Dispose the input channel after removing the window so the Window Manager 2658 // doesn't interpret the input channel being closed as an abnormal termination. 2659 if (mInputChannel != null) { 2660 mInputChannel.dispose(); 2661 mInputChannel = null; 2662 } 2663 2664 unscheduleTraversals(); 2665 } 2666 2667 void updateConfiguration(Configuration config, boolean force) { 2668 if (DEBUG_CONFIGURATION) Log.v(TAG, 2669 "Applying new config to window " 2670 + mWindowAttributes.getTitle() 2671 + ": " + config); 2672 2673 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2674 if (ci != null) { 2675 config = new Configuration(config); 2676 ci.applyToConfiguration(mNoncompatDensity, config); 2677 } 2678 2679 synchronized (sConfigCallbacks) { 2680 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2681 sConfigCallbacks.get(i).onConfigurationChanged(config); 2682 } 2683 } 2684 if (mView != null) { 2685 // At this point the resources have been updated to 2686 // have the most recent config, whatever that is. Use 2687 // the one in them which may be newer. 2688 config = mView.getResources().getConfiguration(); 2689 if (force || mLastConfiguration.diff(config) != 0) { 2690 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2691 final int currentLayoutDirection = config.getLayoutDirection(); 2692 mLastConfiguration.setTo(config); 2693 if (lastLayoutDirection != currentLayoutDirection && 2694 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2695 mView.setLayoutDirection(currentLayoutDirection); 2696 } 2697 mView.dispatchConfigurationChanged(config); 2698 } 2699 } 2700 } 2701 2702 /** 2703 * Return true if child is an ancestor of parent, (or equal to the parent). 2704 */ 2705 public static boolean isViewDescendantOf(View child, View parent) { 2706 if (child == parent) { 2707 return true; 2708 } 2709 2710 final ViewParent theParent = child.getParent(); 2711 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2712 } 2713 2714 private static void forceLayout(View view) { 2715 view.forceLayout(); 2716 if (view instanceof ViewGroup) { 2717 ViewGroup group = (ViewGroup) view; 2718 final int count = group.getChildCount(); 2719 for (int i = 0; i < count; i++) { 2720 forceLayout(group.getChildAt(i)); 2721 } 2722 } 2723 } 2724 2725 private final static int MSG_INVALIDATE = 1; 2726 private final static int MSG_INVALIDATE_RECT = 2; 2727 private final static int MSG_DIE = 3; 2728 private final static int MSG_RESIZED = 4; 2729 private final static int MSG_RESIZED_REPORT = 5; 2730 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2731 private final static int MSG_DISPATCH_KEY = 7; 2732 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2733 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2734 private final static int MSG_IME_FINISHED_EVENT = 10; 2735 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2736 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2737 private final static int MSG_CHECK_FOCUS = 13; 2738 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2739 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2740 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2741 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2742 private final static int MSG_UPDATE_CONFIGURATION = 18; 2743 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2744 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2745 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2746 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2747 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2748 private final static int MSG_INVALIDATE_WORLD = 24; 2749 private final static int MSG_WINDOW_MOVED = 25; 2750 2751 final class ViewRootHandler extends Handler { 2752 @Override 2753 public String getMessageName(Message message) { 2754 switch (message.what) { 2755 case MSG_INVALIDATE: 2756 return "MSG_INVALIDATE"; 2757 case MSG_INVALIDATE_RECT: 2758 return "MSG_INVALIDATE_RECT"; 2759 case MSG_DIE: 2760 return "MSG_DIE"; 2761 case MSG_RESIZED: 2762 return "MSG_RESIZED"; 2763 case MSG_RESIZED_REPORT: 2764 return "MSG_RESIZED_REPORT"; 2765 case MSG_WINDOW_FOCUS_CHANGED: 2766 return "MSG_WINDOW_FOCUS_CHANGED"; 2767 case MSG_DISPATCH_KEY: 2768 return "MSG_DISPATCH_KEY"; 2769 case MSG_DISPATCH_APP_VISIBILITY: 2770 return "MSG_DISPATCH_APP_VISIBILITY"; 2771 case MSG_DISPATCH_GET_NEW_SURFACE: 2772 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2773 case MSG_IME_FINISHED_EVENT: 2774 return "MSG_IME_FINISHED_EVENT"; 2775 case MSG_DISPATCH_KEY_FROM_IME: 2776 return "MSG_DISPATCH_KEY_FROM_IME"; 2777 case MSG_FINISH_INPUT_CONNECTION: 2778 return "MSG_FINISH_INPUT_CONNECTION"; 2779 case MSG_CHECK_FOCUS: 2780 return "MSG_CHECK_FOCUS"; 2781 case MSG_CLOSE_SYSTEM_DIALOGS: 2782 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2783 case MSG_DISPATCH_DRAG_EVENT: 2784 return "MSG_DISPATCH_DRAG_EVENT"; 2785 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2786 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2787 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2788 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2789 case MSG_UPDATE_CONFIGURATION: 2790 return "MSG_UPDATE_CONFIGURATION"; 2791 case MSG_PROCESS_INPUT_EVENTS: 2792 return "MSG_PROCESS_INPUT_EVENTS"; 2793 case MSG_DISPATCH_SCREEN_STATE: 2794 return "MSG_DISPATCH_SCREEN_STATE"; 2795 case MSG_INVALIDATE_DISPLAY_LIST: 2796 return "MSG_INVALIDATE_DISPLAY_LIST"; 2797 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2798 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2799 case MSG_DISPATCH_DONE_ANIMATING: 2800 return "MSG_DISPATCH_DONE_ANIMATING"; 2801 case MSG_WINDOW_MOVED: 2802 return "MSG_WINDOW_MOVED"; 2803 } 2804 return super.getMessageName(message); 2805 } 2806 2807 @Override 2808 public void handleMessage(Message msg) { 2809 switch (msg.what) { 2810 case MSG_INVALIDATE: 2811 ((View) msg.obj).invalidate(); 2812 break; 2813 case MSG_INVALIDATE_RECT: 2814 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2815 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2816 info.release(); 2817 break; 2818 case MSG_IME_FINISHED_EVENT: 2819 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2820 break; 2821 case MSG_PROCESS_INPUT_EVENTS: 2822 mProcessInputEventsScheduled = false; 2823 doProcessInputEvents(); 2824 break; 2825 case MSG_DISPATCH_APP_VISIBILITY: 2826 handleAppVisibility(msg.arg1 != 0); 2827 break; 2828 case MSG_DISPATCH_GET_NEW_SURFACE: 2829 handleGetNewSurface(); 2830 break; 2831 case MSG_RESIZED: { 2832 // Recycled in the fall through... 2833 SomeArgs args = (SomeArgs) msg.obj; 2834 if (mWinFrame.equals(args.arg1) 2835 && mPendingContentInsets.equals(args.arg2) 2836 && mPendingVisibleInsets.equals(args.arg3) 2837 && args.arg4 == null) { 2838 break; 2839 } 2840 } // fall through... 2841 case MSG_RESIZED_REPORT: 2842 if (mAdded) { 2843 SomeArgs args = (SomeArgs) msg.obj; 2844 2845 Configuration config = (Configuration) args.arg4; 2846 if (config != null) { 2847 updateConfiguration(config, false); 2848 } 2849 2850 mWinFrame.set((Rect) args.arg1); 2851 mPendingContentInsets.set((Rect) args.arg2); 2852 mPendingVisibleInsets.set((Rect) args.arg3); 2853 2854 args.recycle(); 2855 2856 if (msg.what == MSG_RESIZED_REPORT) { 2857 mReportNextDraw = true; 2858 } 2859 2860 if (mView != null) { 2861 forceLayout(mView); 2862 } 2863 2864 requestLayout(); 2865 } 2866 break; 2867 case MSG_WINDOW_MOVED: 2868 if (mAdded) { 2869 final int w = mWinFrame.width(); 2870 final int h = mWinFrame.height(); 2871 final int l = msg.arg1; 2872 final int t = msg.arg2; 2873 mWinFrame.left = l; 2874 mWinFrame.right = l + w; 2875 mWinFrame.top = t; 2876 mWinFrame.bottom = t + h; 2877 2878 if (mView != null) { 2879 forceLayout(mView); 2880 } 2881 requestLayout(); 2882 } 2883 break; 2884 case MSG_WINDOW_FOCUS_CHANGED: { 2885 if (mAdded) { 2886 boolean hasWindowFocus = msg.arg1 != 0; 2887 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2888 2889 profileRendering(hasWindowFocus); 2890 2891 if (hasWindowFocus) { 2892 boolean inTouchMode = msg.arg2 != 0; 2893 ensureTouchModeLocally(inTouchMode); 2894 2895 if (mAttachInfo.mHardwareRenderer != null && 2896 mSurface != null && mSurface.isValid()) { 2897 mFullRedrawNeeded = true; 2898 try { 2899 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2900 mWidth, mHeight, mHolder.getSurface())) { 2901 mFullRedrawNeeded = true; 2902 } 2903 } catch (Surface.OutOfResourcesException e) { 2904 Log.e(TAG, "OutOfResourcesException locking surface", e); 2905 try { 2906 if (!mWindowSession.outOfMemory(mWindow)) { 2907 Slog.w(TAG, "No processes killed for memory; killing self"); 2908 Process.killProcess(Process.myPid()); 2909 } 2910 } catch (RemoteException ex) { 2911 } 2912 // Retry in a bit. 2913 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2914 return; 2915 } 2916 } 2917 } 2918 2919 mLastWasImTarget = WindowManager.LayoutParams 2920 .mayUseInputMethod(mWindowAttributes.flags); 2921 2922 InputMethodManager imm = InputMethodManager.peekInstance(); 2923 if (mView != null) { 2924 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2925 imm.startGettingWindowFocus(mView); 2926 } 2927 mAttachInfo.mKeyDispatchState.reset(); 2928 mView.dispatchWindowFocusChanged(hasWindowFocus); 2929 } 2930 2931 // Note: must be done after the focus change callbacks, 2932 // so all of the view state is set up correctly. 2933 if (hasWindowFocus) { 2934 if (imm != null && mLastWasImTarget) { 2935 imm.onWindowFocus(mView, mView.findFocus(), 2936 mWindowAttributes.softInputMode, 2937 !mHasHadWindowFocus, mWindowAttributes.flags); 2938 } 2939 // Clear the forward bit. We can just do this directly, since 2940 // the window manager doesn't care about it. 2941 mWindowAttributes.softInputMode &= 2942 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2943 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2944 .softInputMode &= 2945 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2946 mHasHadWindowFocus = true; 2947 } 2948 2949 setAccessibilityFocus(null, null); 2950 2951 if (mView != null && mAccessibilityManager.isEnabled()) { 2952 if (hasWindowFocus) { 2953 mView.sendAccessibilityEvent( 2954 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2955 } 2956 } 2957 } 2958 } break; 2959 case MSG_DIE: 2960 doDie(); 2961 break; 2962 case MSG_DISPATCH_KEY: { 2963 KeyEvent event = (KeyEvent)msg.obj; 2964 enqueueInputEvent(event, null, 0, true); 2965 } break; 2966 case MSG_DISPATCH_KEY_FROM_IME: { 2967 if (LOCAL_LOGV) Log.v( 2968 TAG, "Dispatching key " 2969 + msg.obj + " from IME to " + mView); 2970 KeyEvent event = (KeyEvent)msg.obj; 2971 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2972 // The IME is trying to say this event is from the 2973 // system! Bad bad bad! 2974 //noinspection UnusedAssignment 2975 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2976 } 2977 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2978 } break; 2979 case MSG_FINISH_INPUT_CONNECTION: { 2980 InputMethodManager imm = InputMethodManager.peekInstance(); 2981 if (imm != null) { 2982 imm.reportFinishInputConnection((InputConnection)msg.obj); 2983 } 2984 } break; 2985 case MSG_CHECK_FOCUS: { 2986 InputMethodManager imm = InputMethodManager.peekInstance(); 2987 if (imm != null) { 2988 imm.checkFocus(); 2989 } 2990 } break; 2991 case MSG_CLOSE_SYSTEM_DIALOGS: { 2992 if (mView != null) { 2993 mView.onCloseSystemDialogs((String)msg.obj); 2994 } 2995 } break; 2996 case MSG_DISPATCH_DRAG_EVENT: 2997 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2998 DragEvent event = (DragEvent)msg.obj; 2999 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3000 handleDragEvent(event); 3001 } break; 3002 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3003 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3004 } break; 3005 case MSG_UPDATE_CONFIGURATION: { 3006 Configuration config = (Configuration)msg.obj; 3007 if (config.isOtherSeqNewer(mLastConfiguration)) { 3008 config = mLastConfiguration; 3009 } 3010 updateConfiguration(config, false); 3011 } break; 3012 case MSG_DISPATCH_SCREEN_STATE: { 3013 if (mView != null) { 3014 handleScreenStateChange(msg.arg1 == 1); 3015 } 3016 } break; 3017 case MSG_INVALIDATE_DISPLAY_LIST: { 3018 invalidateDisplayLists(); 3019 } break; 3020 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3021 setAccessibilityFocus(null, null); 3022 } break; 3023 case MSG_DISPATCH_DONE_ANIMATING: { 3024 handleDispatchDoneAnimating(); 3025 } break; 3026 case MSG_INVALIDATE_WORLD: { 3027 if (mView != null) { 3028 invalidateWorld(mView); 3029 } 3030 } break; 3031 } 3032 } 3033 } 3034 3035 final ViewRootHandler mHandler = new ViewRootHandler(); 3036 3037 /** 3038 * Something in the current window tells us we need to change the touch mode. For 3039 * example, we are not in touch mode, and the user touches the screen. 3040 * 3041 * If the touch mode has changed, tell the window manager, and handle it locally. 3042 * 3043 * @param inTouchMode Whether we want to be in touch mode. 3044 * @return True if the touch mode changed and focus changed was changed as a result 3045 */ 3046 boolean ensureTouchMode(boolean inTouchMode) { 3047 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3048 + "touch mode is " + mAttachInfo.mInTouchMode); 3049 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3050 3051 // tell the window manager 3052 try { 3053 mWindowSession.setInTouchMode(inTouchMode); 3054 } catch (RemoteException e) { 3055 throw new RuntimeException(e); 3056 } 3057 3058 // handle the change 3059 return ensureTouchModeLocally(inTouchMode); 3060 } 3061 3062 /** 3063 * Ensure that the touch mode for this window is set, and if it is changing, 3064 * take the appropriate action. 3065 * @param inTouchMode Whether we want to be in touch mode. 3066 * @return True if the touch mode changed and focus changed was changed as a result 3067 */ 3068 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3069 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3070 + "touch mode is " + mAttachInfo.mInTouchMode); 3071 3072 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3073 3074 mAttachInfo.mInTouchMode = inTouchMode; 3075 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3076 3077 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3078 } 3079 3080 private boolean enterTouchMode() { 3081 if (mView != null) { 3082 if (mView.hasFocus()) { 3083 // note: not relying on mFocusedView here because this could 3084 // be when the window is first being added, and mFocused isn't 3085 // set yet. 3086 final View focused = mView.findFocus(); 3087 if (focused != null && !focused.isFocusableInTouchMode()) { 3088 3089 final ViewGroup ancestorToTakeFocus = 3090 findAncestorToTakeFocusInTouchMode(focused); 3091 if (ancestorToTakeFocus != null) { 3092 // there is an ancestor that wants focus after its descendants that 3093 // is focusable in touch mode.. give it focus 3094 return ancestorToTakeFocus.requestFocus(); 3095 } else { 3096 // nothing appropriate to have focus in touch mode, clear it out 3097 mView.unFocus(); 3098 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3099 mFocusedView = null; 3100 mOldFocusedView = null; 3101 return true; 3102 } 3103 } 3104 } 3105 } 3106 return false; 3107 } 3108 3109 /** 3110 * Find an ancestor of focused that wants focus after its descendants and is 3111 * focusable in touch mode. 3112 * @param focused The currently focused view. 3113 * @return An appropriate view, or null if no such view exists. 3114 */ 3115 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3116 ViewParent parent = focused.getParent(); 3117 while (parent instanceof ViewGroup) { 3118 final ViewGroup vgParent = (ViewGroup) parent; 3119 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3120 && vgParent.isFocusableInTouchMode()) { 3121 return vgParent; 3122 } 3123 if (vgParent.isRootNamespace()) { 3124 return null; 3125 } else { 3126 parent = vgParent.getParent(); 3127 } 3128 } 3129 return null; 3130 } 3131 3132 private boolean leaveTouchMode() { 3133 if (mView != null) { 3134 if (mView.hasFocus()) { 3135 // i learned the hard way to not trust mFocusedView :) 3136 mFocusedView = mView.findFocus(); 3137 if (!(mFocusedView instanceof ViewGroup)) { 3138 // some view has focus, let it keep it 3139 return false; 3140 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3141 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3142 // some view group has focus, and doesn't prefer its children 3143 // over itself for focus, so let them keep it. 3144 return false; 3145 } 3146 } 3147 3148 // find the best view to give focus to in this brave new non-touch-mode 3149 // world 3150 final View focused = focusSearch(null, View.FOCUS_DOWN); 3151 if (focused != null) { 3152 return focused.requestFocus(View.FOCUS_DOWN); 3153 } 3154 } 3155 return false; 3156 } 3157 3158 private void deliverInputEvent(QueuedInputEvent q) { 3159 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3160 try { 3161 if (q.mEvent instanceof KeyEvent) { 3162 deliverKeyEvent(q); 3163 } else { 3164 final int source = q.mEvent.getSource(); 3165 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3166 deliverPointerEvent(q); 3167 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3168 deliverTrackballEvent(q); 3169 } else { 3170 deliverGenericMotionEvent(q); 3171 } 3172 } 3173 } finally { 3174 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3175 } 3176 } 3177 3178 private void deliverPointerEvent(QueuedInputEvent q) { 3179 final MotionEvent event = (MotionEvent)q.mEvent; 3180 final boolean isTouchEvent = event.isTouchEvent(); 3181 if (mInputEventConsistencyVerifier != null) { 3182 if (isTouchEvent) { 3183 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3184 } else { 3185 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3186 } 3187 } 3188 3189 // If there is no view, then the event will not be handled. 3190 if (mView == null || !mAdded) { 3191 finishInputEvent(q, false); 3192 return; 3193 } 3194 3195 // Translate the pointer event for compatibility, if needed. 3196 if (mTranslator != null) { 3197 mTranslator.translateEventInScreenToAppWindow(event); 3198 } 3199 3200 // Enter touch mode on down or scroll. 3201 final int action = event.getAction(); 3202 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3203 ensureTouchMode(true); 3204 } 3205 3206 // Offset the scroll position. 3207 if (mCurScrollY != 0) { 3208 event.offsetLocation(0, mCurScrollY); 3209 } 3210 if (MEASURE_LATENCY) { 3211 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3212 } 3213 3214 // Remember the touch position for possible drag-initiation. 3215 if (isTouchEvent) { 3216 mLastTouchPoint.x = event.getRawX(); 3217 mLastTouchPoint.y = event.getRawY(); 3218 } 3219 3220 // Dispatch touch to view hierarchy. 3221 boolean handled = mView.dispatchPointerEvent(event); 3222 if (MEASURE_LATENCY) { 3223 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3224 } 3225 if (handled) { 3226 finishInputEvent(q, true); 3227 return; 3228 } 3229 3230 // Pointer event was unhandled. 3231 finishInputEvent(q, false); 3232 } 3233 3234 private void deliverTrackballEvent(QueuedInputEvent q) { 3235 final MotionEvent event = (MotionEvent)q.mEvent; 3236 if (mInputEventConsistencyVerifier != null) { 3237 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3238 } 3239 3240 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3241 if (LOCAL_LOGV) 3242 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3243 3244 // Dispatch to the IME before propagating down the view hierarchy. 3245 // The IME will eventually call back into handleImeFinishedEvent. 3246 if (mLastWasImTarget) { 3247 InputMethodManager imm = InputMethodManager.peekInstance(); 3248 if (imm != null) { 3249 final int seq = event.getSequenceNumber(); 3250 if (DEBUG_IMF) 3251 Log.v(TAG, "Sending trackball event to IME: seq=" 3252 + seq + " event=" + event); 3253 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3254 mInputMethodCallback); 3255 return; 3256 } 3257 } 3258 } 3259 3260 // Not dispatching to IME, continue with post IME actions. 3261 deliverTrackballEventPostIme(q); 3262 } 3263 3264 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3265 final MotionEvent event = (MotionEvent) q.mEvent; 3266 3267 // If there is no view, then the event will not be handled. 3268 if (mView == null || !mAdded) { 3269 finishInputEvent(q, false); 3270 return; 3271 } 3272 3273 // Deliver the trackball event to the view. 3274 if (mView.dispatchTrackballEvent(event)) { 3275 // If we reach this, we delivered a trackball event to mView and 3276 // mView consumed it. Because we will not translate the trackball 3277 // event into a key event, touch mode will not exit, so we exit 3278 // touch mode here. 3279 ensureTouchMode(false); 3280 3281 finishInputEvent(q, true); 3282 mLastTrackballTime = Integer.MIN_VALUE; 3283 return; 3284 } 3285 3286 // Translate the trackball event into DPAD keys and try to deliver those. 3287 final TrackballAxis x = mTrackballAxisX; 3288 final TrackballAxis y = mTrackballAxisY; 3289 3290 long curTime = SystemClock.uptimeMillis(); 3291 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3292 // It has been too long since the last movement, 3293 // so restart at the beginning. 3294 x.reset(0); 3295 y.reset(0); 3296 mLastTrackballTime = curTime; 3297 } 3298 3299 final int action = event.getAction(); 3300 final int metaState = event.getMetaState(); 3301 switch (action) { 3302 case MotionEvent.ACTION_DOWN: 3303 x.reset(2); 3304 y.reset(2); 3305 enqueueInputEvent(new KeyEvent(curTime, curTime, 3306 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3307 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3308 InputDevice.SOURCE_KEYBOARD)); 3309 break; 3310 case MotionEvent.ACTION_UP: 3311 x.reset(2); 3312 y.reset(2); 3313 enqueueInputEvent(new KeyEvent(curTime, curTime, 3314 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3315 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3316 InputDevice.SOURCE_KEYBOARD)); 3317 break; 3318 } 3319 3320 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3321 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3322 + " move=" + event.getX() 3323 + " / Y=" + y.position + " step=" 3324 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3325 + " move=" + event.getY()); 3326 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3327 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3328 3329 // Generate DPAD events based on the trackball movement. 3330 // We pick the axis that has moved the most as the direction of 3331 // the DPAD. When we generate DPAD events for one axis, then the 3332 // other axis is reset -- we don't want to perform DPAD jumps due 3333 // to slight movements in the trackball when making major movements 3334 // along the other axis. 3335 int keycode = 0; 3336 int movement = 0; 3337 float accel = 1; 3338 if (xOff > yOff) { 3339 movement = x.generate((2/event.getXPrecision())); 3340 if (movement != 0) { 3341 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3342 : KeyEvent.KEYCODE_DPAD_LEFT; 3343 accel = x.acceleration; 3344 y.reset(2); 3345 } 3346 } else if (yOff > 0) { 3347 movement = y.generate((2/event.getYPrecision())); 3348 if (movement != 0) { 3349 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3350 : KeyEvent.KEYCODE_DPAD_UP; 3351 accel = y.acceleration; 3352 x.reset(2); 3353 } 3354 } 3355 3356 if (keycode != 0) { 3357 if (movement < 0) movement = -movement; 3358 int accelMovement = (int)(movement * accel); 3359 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3360 + " accelMovement=" + accelMovement 3361 + " accel=" + accel); 3362 if (accelMovement > movement) { 3363 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3364 + keycode); 3365 movement--; 3366 int repeatCount = accelMovement - movement; 3367 enqueueInputEvent(new KeyEvent(curTime, curTime, 3368 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3369 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3370 InputDevice.SOURCE_KEYBOARD)); 3371 } 3372 while (movement > 0) { 3373 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3374 + keycode); 3375 movement--; 3376 curTime = SystemClock.uptimeMillis(); 3377 enqueueInputEvent(new KeyEvent(curTime, curTime, 3378 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3379 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3380 InputDevice.SOURCE_KEYBOARD)); 3381 enqueueInputEvent(new KeyEvent(curTime, curTime, 3382 KeyEvent.ACTION_UP, keycode, 0, metaState, 3383 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3384 InputDevice.SOURCE_KEYBOARD)); 3385 } 3386 mLastTrackballTime = curTime; 3387 } 3388 3389 // Unfortunately we can't tell whether the application consumed the keys, so 3390 // we always consider the trackball event handled. 3391 finishInputEvent(q, true); 3392 } 3393 3394 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3395 final MotionEvent event = (MotionEvent)q.mEvent; 3396 if (mInputEventConsistencyVerifier != null) { 3397 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3398 } 3399 3400 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3401 if (LOCAL_LOGV) 3402 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3403 3404 // Dispatch to the IME before propagating down the view hierarchy. 3405 // The IME will eventually call back into handleImeFinishedEvent. 3406 if (mLastWasImTarget) { 3407 InputMethodManager imm = InputMethodManager.peekInstance(); 3408 if (imm != null) { 3409 final int seq = event.getSequenceNumber(); 3410 if (DEBUG_IMF) 3411 Log.v(TAG, "Sending generic motion event to IME: seq=" 3412 + seq + " event=" + event); 3413 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3414 mInputMethodCallback); 3415 return; 3416 } 3417 } 3418 } 3419 3420 // Not dispatching to IME, continue with post IME actions. 3421 deliverGenericMotionEventPostIme(q); 3422 } 3423 3424 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3425 final MotionEvent event = (MotionEvent) q.mEvent; 3426 final boolean isJoystick = (event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3427 3428 // If there is no view, then the event will not be handled. 3429 if (mView == null || !mAdded) { 3430 if (isJoystick) { 3431 updateJoystickDirection(event, false); 3432 } 3433 finishInputEvent(q, false); 3434 return; 3435 } 3436 3437 // Deliver the event to the view. 3438 if (mView.dispatchGenericMotionEvent(event)) { 3439 if (isJoystick) { 3440 updateJoystickDirection(event, false); 3441 } 3442 finishInputEvent(q, true); 3443 return; 3444 } 3445 3446 if (isJoystick) { 3447 // Translate the joystick event into DPAD keys and try to deliver 3448 // those. 3449 updateJoystickDirection(event, true); 3450 finishInputEvent(q, true); 3451 } else { 3452 finishInputEvent(q, false); 3453 } 3454 } 3455 3456 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3457 final long time = event.getEventTime(); 3458 final int metaState = event.getMetaState(); 3459 final int deviceId = event.getDeviceId(); 3460 final int source = event.getSource(); 3461 3462 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3463 if (xDirection == 0) { 3464 xDirection = joystickAxisValueToDirection(event.getX()); 3465 } 3466 3467 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3468 if (yDirection == 0) { 3469 yDirection = joystickAxisValueToDirection(event.getY()); 3470 } 3471 3472 if (xDirection != mLastJoystickXDirection) { 3473 if (mLastJoystickXKeyCode != 0) { 3474 enqueueInputEvent(new KeyEvent(time, time, 3475 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3476 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3477 mLastJoystickXKeyCode = 0; 3478 } 3479 3480 mLastJoystickXDirection = xDirection; 3481 3482 if (xDirection != 0 && synthesizeNewKeys) { 3483 mLastJoystickXKeyCode = xDirection > 0 3484 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3485 enqueueInputEvent(new KeyEvent(time, time, 3486 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3487 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3488 } 3489 } 3490 3491 if (yDirection != mLastJoystickYDirection) { 3492 if (mLastJoystickYKeyCode != 0) { 3493 enqueueInputEvent(new KeyEvent(time, time, 3494 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3495 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3496 mLastJoystickYKeyCode = 0; 3497 } 3498 3499 mLastJoystickYDirection = yDirection; 3500 3501 if (yDirection != 0 && synthesizeNewKeys) { 3502 mLastJoystickYKeyCode = yDirection > 0 3503 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3504 enqueueInputEvent(new KeyEvent(time, time, 3505 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3506 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3507 } 3508 } 3509 } 3510 3511 private static int joystickAxisValueToDirection(float value) { 3512 if (value >= 0.5f) { 3513 return 1; 3514 } else if (value <= -0.5f) { 3515 return -1; 3516 } else { 3517 return 0; 3518 } 3519 } 3520 3521 /** 3522 * Returns true if the key is used for keyboard navigation. 3523 * @param keyEvent The key event. 3524 * @return True if the key is used for keyboard navigation. 3525 */ 3526 private static boolean isNavigationKey(KeyEvent keyEvent) { 3527 switch (keyEvent.getKeyCode()) { 3528 case KeyEvent.KEYCODE_DPAD_LEFT: 3529 case KeyEvent.KEYCODE_DPAD_RIGHT: 3530 case KeyEvent.KEYCODE_DPAD_UP: 3531 case KeyEvent.KEYCODE_DPAD_DOWN: 3532 case KeyEvent.KEYCODE_DPAD_CENTER: 3533 case KeyEvent.KEYCODE_PAGE_UP: 3534 case KeyEvent.KEYCODE_PAGE_DOWN: 3535 case KeyEvent.KEYCODE_MOVE_HOME: 3536 case KeyEvent.KEYCODE_MOVE_END: 3537 case KeyEvent.KEYCODE_TAB: 3538 case KeyEvent.KEYCODE_SPACE: 3539 case KeyEvent.KEYCODE_ENTER: 3540 return true; 3541 } 3542 return false; 3543 } 3544 3545 /** 3546 * Returns true if the key is used for typing. 3547 * @param keyEvent The key event. 3548 * @return True if the key is used for typing. 3549 */ 3550 private static boolean isTypingKey(KeyEvent keyEvent) { 3551 return keyEvent.getUnicodeChar() > 0; 3552 } 3553 3554 /** 3555 * See if the key event means we should leave touch mode (and leave touch mode if so). 3556 * @param event The key event. 3557 * @return Whether this key event should be consumed (meaning the act of 3558 * leaving touch mode alone is considered the event). 3559 */ 3560 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3561 // Only relevant in touch mode. 3562 if (!mAttachInfo.mInTouchMode) { 3563 return false; 3564 } 3565 3566 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3567 final int action = event.getAction(); 3568 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3569 return false; 3570 } 3571 3572 // Don't leave touch mode if the IME told us not to. 3573 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3574 return false; 3575 } 3576 3577 // If the key can be used for keyboard navigation then leave touch mode 3578 // and select a focused view if needed (in ensureTouchMode). 3579 // When a new focused view is selected, we consume the navigation key because 3580 // navigation doesn't make much sense unless a view already has focus so 3581 // the key's purpose is to set focus. 3582 if (isNavigationKey(event)) { 3583 return ensureTouchMode(false); 3584 } 3585 3586 // If the key can be used for typing then leave touch mode 3587 // and select a focused view if needed (in ensureTouchMode). 3588 // Always allow the view to process the typing key. 3589 if (isTypingKey(event)) { 3590 ensureTouchMode(false); 3591 return false; 3592 } 3593 3594 return false; 3595 } 3596 3597 private void deliverKeyEvent(QueuedInputEvent q) { 3598 final KeyEvent event = (KeyEvent)q.mEvent; 3599 if (mInputEventConsistencyVerifier != null) { 3600 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3601 } 3602 3603 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3604 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3605 3606 // Perform predispatching before the IME. 3607 if (mView.dispatchKeyEventPreIme(event)) { 3608 finishInputEvent(q, true); 3609 return; 3610 } 3611 3612 // Dispatch to the IME before propagating down the view hierarchy. 3613 // The IME will eventually call back into handleImeFinishedEvent. 3614 if (mLastWasImTarget) { 3615 InputMethodManager imm = InputMethodManager.peekInstance(); 3616 if (imm != null) { 3617 final int seq = event.getSequenceNumber(); 3618 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3619 + seq + " event=" + event); 3620 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3621 return; 3622 } 3623 } 3624 } 3625 3626 // Not dispatching to IME, continue with post IME actions. 3627 deliverKeyEventPostIme(q); 3628 } 3629 3630 void handleImeFinishedEvent(int seq, boolean handled) { 3631 final QueuedInputEvent q = mCurrentInputEvent; 3632 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3633 if (DEBUG_IMF) { 3634 Log.v(TAG, "IME finished event: seq=" + seq 3635 + " handled=" + handled + " event=" + q); 3636 } 3637 if (handled) { 3638 finishInputEvent(q, true); 3639 } else { 3640 if (q.mEvent instanceof KeyEvent) { 3641 KeyEvent event = (KeyEvent)q.mEvent; 3642 if (event.getAction() != KeyEvent.ACTION_UP) { 3643 // If the window doesn't currently have input focus, then drop 3644 // this event. This could be an event that came back from the 3645 // IME dispatch but the window has lost focus in the meantime. 3646 if (!mAttachInfo.mHasWindowFocus) { 3647 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3648 finishInputEvent(q, true); 3649 return; 3650 } 3651 } 3652 deliverKeyEventPostIme(q); 3653 } else { 3654 MotionEvent event = (MotionEvent)q.mEvent; 3655 if (event.getAction() != MotionEvent.ACTION_CANCEL 3656 && event.getAction() != MotionEvent.ACTION_UP) { 3657 // If the window doesn't currently have input focus, then drop 3658 // this event. This could be an event that came back from the 3659 // IME dispatch but the window has lost focus in the meantime. 3660 if (!mAttachInfo.mHasWindowFocus) { 3661 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3662 finishInputEvent(q, true); 3663 return; 3664 } 3665 } 3666 final int source = q.mEvent.getSource(); 3667 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3668 deliverTrackballEventPostIme(q); 3669 } else { 3670 deliverGenericMotionEventPostIme(q); 3671 } 3672 } 3673 } 3674 } else { 3675 if (DEBUG_IMF) { 3676 Log.v(TAG, "IME finished event: seq=" + seq 3677 + " handled=" + handled + ", event not found!"); 3678 } 3679 } 3680 } 3681 3682 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3683 final KeyEvent event = (KeyEvent)q.mEvent; 3684 3685 // If the view went away, then the event will not be handled. 3686 if (mView == null || !mAdded) { 3687 finishInputEvent(q, false); 3688 return; 3689 } 3690 3691 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3692 if (checkForLeavingTouchModeAndConsume(event)) { 3693 finishInputEvent(q, true); 3694 return; 3695 } 3696 3697 // Make sure the fallback event policy sees all keys that will be delivered to the 3698 // view hierarchy. 3699 mFallbackEventHandler.preDispatchKeyEvent(event); 3700 3701 // Deliver the key to the view hierarchy. 3702 if (mView.dispatchKeyEvent(event)) { 3703 finishInputEvent(q, true); 3704 return; 3705 } 3706 3707 // If the Control modifier is held, try to interpret the key as a shortcut. 3708 if (event.getAction() == KeyEvent.ACTION_DOWN 3709 && event.isCtrlPressed() 3710 && event.getRepeatCount() == 0 3711 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3712 if (mView.dispatchKeyShortcutEvent(event)) { 3713 finishInputEvent(q, true); 3714 return; 3715 } 3716 } 3717 3718 // Apply the fallback event policy. 3719 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3720 finishInputEvent(q, true); 3721 return; 3722 } 3723 3724 // Handle automatic focus changes. 3725 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3726 int direction = 0; 3727 switch (event.getKeyCode()) { 3728 case KeyEvent.KEYCODE_DPAD_LEFT: 3729 if (event.hasNoModifiers()) { 3730 direction = View.FOCUS_LEFT; 3731 } 3732 break; 3733 case KeyEvent.KEYCODE_DPAD_RIGHT: 3734 if (event.hasNoModifiers()) { 3735 direction = View.FOCUS_RIGHT; 3736 } 3737 break; 3738 case KeyEvent.KEYCODE_DPAD_UP: 3739 if (event.hasNoModifiers()) { 3740 direction = View.FOCUS_UP; 3741 } 3742 break; 3743 case KeyEvent.KEYCODE_DPAD_DOWN: 3744 if (event.hasNoModifiers()) { 3745 direction = View.FOCUS_DOWN; 3746 } 3747 break; 3748 case KeyEvent.KEYCODE_TAB: 3749 if (event.hasNoModifiers()) { 3750 direction = View.FOCUS_FORWARD; 3751 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3752 direction = View.FOCUS_BACKWARD; 3753 } 3754 break; 3755 } 3756 if (direction != 0) { 3757 View focused = mView.findFocus(); 3758 if (focused != null) { 3759 View v = focused.focusSearch(direction); 3760 if (v != null && v != focused) { 3761 // do the math the get the interesting rect 3762 // of previous focused into the coord system of 3763 // newly focused view 3764 focused.getFocusedRect(mTempRect); 3765 if (mView instanceof ViewGroup) { 3766 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3767 focused, mTempRect); 3768 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3769 v, mTempRect); 3770 } 3771 if (v.requestFocus(direction, mTempRect)) { 3772 playSoundEffect(SoundEffectConstants 3773 .getContantForFocusDirection(direction)); 3774 finishInputEvent(q, true); 3775 return; 3776 } 3777 } 3778 3779 // Give the focused view a last chance to handle the dpad key. 3780 if (mView.dispatchUnhandledMove(focused, direction)) { 3781 finishInputEvent(q, true); 3782 return; 3783 } 3784 } 3785 } 3786 } 3787 3788 // Key was unhandled. 3789 finishInputEvent(q, false); 3790 } 3791 3792 /* drag/drop */ 3793 void setLocalDragState(Object obj) { 3794 mLocalDragState = obj; 3795 } 3796 3797 private void handleDragEvent(DragEvent event) { 3798 // From the root, only drag start/end/location are dispatched. entered/exited 3799 // are determined and dispatched by the viewgroup hierarchy, who then report 3800 // that back here for ultimate reporting back to the framework. 3801 if (mView != null && mAdded) { 3802 final int what = event.mAction; 3803 3804 if (what == DragEvent.ACTION_DRAG_EXITED) { 3805 // A direct EXITED event means that the window manager knows we've just crossed 3806 // a window boundary, so the current drag target within this one must have 3807 // just been exited. Send it the usual notifications and then we're done 3808 // for now. 3809 mView.dispatchDragEvent(event); 3810 } else { 3811 // Cache the drag description when the operation starts, then fill it in 3812 // on subsequent calls as a convenience 3813 if (what == DragEvent.ACTION_DRAG_STARTED) { 3814 mCurrentDragView = null; // Start the current-recipient tracking 3815 mDragDescription = event.mClipDescription; 3816 } else { 3817 event.mClipDescription = mDragDescription; 3818 } 3819 3820 // For events with a [screen] location, translate into window coordinates 3821 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3822 mDragPoint.set(event.mX, event.mY); 3823 if (mTranslator != null) { 3824 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3825 } 3826 3827 if (mCurScrollY != 0) { 3828 mDragPoint.offset(0, mCurScrollY); 3829 } 3830 3831 event.mX = mDragPoint.x; 3832 event.mY = mDragPoint.y; 3833 } 3834 3835 // Remember who the current drag target is pre-dispatch 3836 final View prevDragView = mCurrentDragView; 3837 3838 // Now dispatch the drag/drop event 3839 boolean result = mView.dispatchDragEvent(event); 3840 3841 // If we changed apparent drag target, tell the OS about it 3842 if (prevDragView != mCurrentDragView) { 3843 try { 3844 if (prevDragView != null) { 3845 mWindowSession.dragRecipientExited(mWindow); 3846 } 3847 if (mCurrentDragView != null) { 3848 mWindowSession.dragRecipientEntered(mWindow); 3849 } 3850 } catch (RemoteException e) { 3851 Slog.e(TAG, "Unable to note drag target change"); 3852 } 3853 } 3854 3855 // Report the drop result when we're done 3856 if (what == DragEvent.ACTION_DROP) { 3857 mDragDescription = null; 3858 try { 3859 Log.i(TAG, "Reporting drop result: " + result); 3860 mWindowSession.reportDropResult(mWindow, result); 3861 } catch (RemoteException e) { 3862 Log.e(TAG, "Unable to report drop result"); 3863 } 3864 } 3865 3866 // When the drag operation ends, release any local state object 3867 // that may have been in use 3868 if (what == DragEvent.ACTION_DRAG_ENDED) { 3869 setLocalDragState(null); 3870 } 3871 } 3872 } 3873 event.recycle(); 3874 } 3875 3876 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3877 if (mSeq != args.seq) { 3878 // The sequence has changed, so we need to update our value and make 3879 // sure to do a traversal afterward so the window manager is given our 3880 // most recent data. 3881 mSeq = args.seq; 3882 mAttachInfo.mForceReportNewAttributes = true; 3883 scheduleTraversals(); 3884 } 3885 if (mView == null) return; 3886 if (args.localChanges != 0) { 3887 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3888 } 3889 if (mAttachInfo != null) { 3890 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3891 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3892 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3893 mView.dispatchSystemUiVisibilityChanged(visibility); 3894 } 3895 } 3896 } 3897 3898 public void handleDispatchDoneAnimating() { 3899 if (mWindowsAnimating) { 3900 mWindowsAnimating = false; 3901 if (!mDirty.isEmpty() || mIsAnimating) { 3902 scheduleTraversals(); 3903 } 3904 } 3905 } 3906 3907 public void getLastTouchPoint(Point outLocation) { 3908 outLocation.x = (int) mLastTouchPoint.x; 3909 outLocation.y = (int) mLastTouchPoint.y; 3910 } 3911 3912 public void setDragFocus(View newDragTarget) { 3913 if (mCurrentDragView != newDragTarget) { 3914 mCurrentDragView = newDragTarget; 3915 } 3916 } 3917 3918 private AudioManager getAudioManager() { 3919 if (mView == null) { 3920 throw new IllegalStateException("getAudioManager called when there is no mView"); 3921 } 3922 if (mAudioManager == null) { 3923 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3924 } 3925 return mAudioManager; 3926 } 3927 3928 public AccessibilityInteractionController getAccessibilityInteractionController() { 3929 if (mView == null) { 3930 throw new IllegalStateException("getAccessibilityInteractionController" 3931 + " called when there is no mView"); 3932 } 3933 if (mAccessibilityInteractionController == null) { 3934 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3935 } 3936 return mAccessibilityInteractionController; 3937 } 3938 3939 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3940 boolean insetsPending) throws RemoteException { 3941 3942 float appScale = mAttachInfo.mApplicationScale; 3943 boolean restore = false; 3944 if (params != null && mTranslator != null) { 3945 restore = true; 3946 params.backup(); 3947 mTranslator.translateWindowLayout(params); 3948 } 3949 if (params != null) { 3950 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3951 } 3952 mPendingConfiguration.seq = 0; 3953 //Log.d(TAG, ">>>>>> CALLING relayout"); 3954 if (params != null && mOrigWindowType != params.type) { 3955 // For compatibility with old apps, don't crash here. 3956 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3957 Slog.w(TAG, "Window type can not be changed after " 3958 + "the window is added; ignoring change of " + mView); 3959 params.type = mOrigWindowType; 3960 } 3961 } 3962 int relayoutResult = mWindowSession.relayout( 3963 mWindow, mSeq, params, 3964 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3965 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3966 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3967 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3968 mPendingConfiguration, mSurface); 3969 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3970 if (restore) { 3971 params.restore(); 3972 } 3973 3974 if (mTranslator != null) { 3975 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3976 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3977 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3978 } 3979 return relayoutResult; 3980 } 3981 3982 /** 3983 * {@inheritDoc} 3984 */ 3985 public void playSoundEffect(int effectId) { 3986 checkThread(); 3987 3988 try { 3989 final AudioManager audioManager = getAudioManager(); 3990 3991 switch (effectId) { 3992 case SoundEffectConstants.CLICK: 3993 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3994 return; 3995 case SoundEffectConstants.NAVIGATION_DOWN: 3996 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3997 return; 3998 case SoundEffectConstants.NAVIGATION_LEFT: 3999 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4000 return; 4001 case SoundEffectConstants.NAVIGATION_RIGHT: 4002 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4003 return; 4004 case SoundEffectConstants.NAVIGATION_UP: 4005 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4006 return; 4007 default: 4008 throw new IllegalArgumentException("unknown effect id " + effectId + 4009 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4010 } 4011 } catch (IllegalStateException e) { 4012 // Exception thrown by getAudioManager() when mView is null 4013 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4014 e.printStackTrace(); 4015 } 4016 } 4017 4018 /** 4019 * {@inheritDoc} 4020 */ 4021 public boolean performHapticFeedback(int effectId, boolean always) { 4022 try { 4023 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4024 } catch (RemoteException e) { 4025 return false; 4026 } 4027 } 4028 4029 /** 4030 * {@inheritDoc} 4031 */ 4032 public View focusSearch(View focused, int direction) { 4033 checkThread(); 4034 if (!(mView instanceof ViewGroup)) { 4035 return null; 4036 } 4037 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4038 } 4039 4040 public void debug() { 4041 mView.debug(); 4042 } 4043 4044 public void dumpGfxInfo(int[] info) { 4045 info[0] = info[1] = 0; 4046 if (mView != null) { 4047 getGfxInfo(mView, info); 4048 } 4049 } 4050 4051 private static void getGfxInfo(View view, int[] info) { 4052 DisplayList displayList = view.mDisplayList; 4053 info[0]++; 4054 if (displayList != null) { 4055 info[1] += displayList.getSize(); 4056 } 4057 4058 if (view instanceof ViewGroup) { 4059 ViewGroup group = (ViewGroup) view; 4060 4061 int count = group.getChildCount(); 4062 for (int i = 0; i < count; i++) { 4063 getGfxInfo(group.getChildAt(i), info); 4064 } 4065 } 4066 } 4067 4068 public void die(boolean immediate) { 4069 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4070 // done by dispatchDetachedFromWindow will cause havoc on return. 4071 if (immediate && !mIsInTraversal) { 4072 doDie(); 4073 } else { 4074 if (!mIsDrawing) { 4075 destroyHardwareRenderer(); 4076 } else { 4077 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4078 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4079 } 4080 mHandler.sendEmptyMessage(MSG_DIE); 4081 } 4082 } 4083 4084 void doDie() { 4085 checkThread(); 4086 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4087 synchronized (this) { 4088 if (mAdded) { 4089 dispatchDetachedFromWindow(); 4090 } 4091 4092 if (mAdded && !mFirst) { 4093 destroyHardwareRenderer(); 4094 4095 if (mView != null) { 4096 int viewVisibility = mView.getVisibility(); 4097 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4098 if (mWindowAttributesChanged || viewVisibilityChanged) { 4099 // If layout params have been changed, first give them 4100 // to the window manager to make sure it has the correct 4101 // animation info. 4102 try { 4103 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4104 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4105 mWindowSession.finishDrawing(mWindow); 4106 } 4107 } catch (RemoteException e) { 4108 } 4109 } 4110 4111 mSurface.release(); 4112 } 4113 } 4114 4115 mAdded = false; 4116 } 4117 } 4118 4119 public void requestUpdateConfiguration(Configuration config) { 4120 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4121 mHandler.sendMessage(msg); 4122 } 4123 4124 public void loadSystemProperties() { 4125 boolean layout = SystemProperties.getBoolean( 4126 View.DEBUG_LAYOUT_PROPERTY, false); 4127 if (layout != mAttachInfo.mDebugLayout) { 4128 mAttachInfo.mDebugLayout = layout; 4129 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4130 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4131 } 4132 } 4133 } 4134 4135 private void destroyHardwareRenderer() { 4136 AttachInfo attachInfo = mAttachInfo; 4137 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4138 4139 if (hardwareRenderer != null) { 4140 if (mView != null) { 4141 hardwareRenderer.destroyHardwareResources(mView); 4142 } 4143 hardwareRenderer.destroy(true); 4144 hardwareRenderer.setRequested(false); 4145 4146 attachInfo.mHardwareRenderer = null; 4147 attachInfo.mHardwareAccelerated = false; 4148 } 4149 } 4150 4151 void dispatchImeFinishedEvent(int seq, boolean handled) { 4152 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4153 msg.arg1 = seq; 4154 msg.arg2 = handled ? 1 : 0; 4155 msg.setAsynchronous(true); 4156 mHandler.sendMessage(msg); 4157 } 4158 4159 public void dispatchFinishInputConnection(InputConnection connection) { 4160 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4161 mHandler.sendMessage(msg); 4162 } 4163 4164 public void dispatchResized(Rect frame, Rect contentInsets, 4165 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4166 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4167 + " contentInsets=" + contentInsets.toShortString() 4168 + " visibleInsets=" + visibleInsets.toShortString() 4169 + " reportDraw=" + reportDraw); 4170 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4171 if (mTranslator != null) { 4172 mTranslator.translateRectInScreenToAppWindow(frame); 4173 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4174 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4175 } 4176 SomeArgs args = SomeArgs.obtain(); 4177 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4178 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4179 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4180 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4181 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4182 msg.obj = args; 4183 mHandler.sendMessage(msg); 4184 } 4185 4186 public void dispatchMoved(int newX, int newY) { 4187 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4188 if (mTranslator != null) { 4189 PointF point = new PointF(newX, newY); 4190 mTranslator.translatePointInScreenToAppWindow(point); 4191 newX = (int) (point.x + 0.5); 4192 newY = (int) (point.y + 0.5); 4193 } 4194 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4195 mHandler.sendMessage(msg); 4196 } 4197 4198 /** 4199 * Represents a pending input event that is waiting in a queue. 4200 * 4201 * Input events are processed in serial order by the timestamp specified by 4202 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4203 * one input event to the application at a time and waits for the application 4204 * to finish handling it before delivering the next one. 4205 * 4206 * However, because the application or IME can synthesize and inject multiple 4207 * key events at a time without going through the input dispatcher, we end up 4208 * needing a queue on the application's side. 4209 */ 4210 private static final class QueuedInputEvent { 4211 public static final int FLAG_DELIVER_POST_IME = 1; 4212 4213 public QueuedInputEvent mNext; 4214 4215 public InputEvent mEvent; 4216 public InputEventReceiver mReceiver; 4217 public int mFlags; 4218 } 4219 4220 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4221 InputEventReceiver receiver, int flags) { 4222 QueuedInputEvent q = mQueuedInputEventPool; 4223 if (q != null) { 4224 mQueuedInputEventPoolSize -= 1; 4225 mQueuedInputEventPool = q.mNext; 4226 q.mNext = null; 4227 } else { 4228 q = new QueuedInputEvent(); 4229 } 4230 4231 q.mEvent = event; 4232 q.mReceiver = receiver; 4233 q.mFlags = flags; 4234 return q; 4235 } 4236 4237 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4238 q.mEvent = null; 4239 q.mReceiver = null; 4240 4241 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4242 mQueuedInputEventPoolSize += 1; 4243 q.mNext = mQueuedInputEventPool; 4244 mQueuedInputEventPool = q; 4245 } 4246 } 4247 4248 void enqueueInputEvent(InputEvent event) { 4249 enqueueInputEvent(event, null, 0, false); 4250 } 4251 4252 void enqueueInputEvent(InputEvent event, 4253 InputEventReceiver receiver, int flags, boolean processImmediately) { 4254 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4255 4256 // Always enqueue the input event in order, regardless of its time stamp. 4257 // We do this because the application or the IME may inject key events 4258 // in response to touch events and we want to ensure that the injected keys 4259 // are processed in the order they were received and we cannot trust that 4260 // the time stamp of injected events are monotonic. 4261 QueuedInputEvent last = mFirstPendingInputEvent; 4262 if (last == null) { 4263 mFirstPendingInputEvent = q; 4264 } else { 4265 while (last.mNext != null) { 4266 last = last.mNext; 4267 } 4268 last.mNext = q; 4269 } 4270 4271 if (processImmediately) { 4272 doProcessInputEvents(); 4273 } else { 4274 scheduleProcessInputEvents(); 4275 } 4276 } 4277 4278 private void scheduleProcessInputEvents() { 4279 if (!mProcessInputEventsScheduled) { 4280 mProcessInputEventsScheduled = true; 4281 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4282 msg.setAsynchronous(true); 4283 mHandler.sendMessage(msg); 4284 } 4285 } 4286 4287 void doProcessInputEvents() { 4288 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4289 QueuedInputEvent q = mFirstPendingInputEvent; 4290 mFirstPendingInputEvent = q.mNext; 4291 q.mNext = null; 4292 mCurrentInputEvent = q; 4293 deliverInputEvent(q); 4294 } 4295 4296 // We are done processing all input events that we can process right now 4297 // so we can clear the pending flag immediately. 4298 if (mProcessInputEventsScheduled) { 4299 mProcessInputEventsScheduled = false; 4300 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4301 } 4302 } 4303 4304 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4305 if (q != mCurrentInputEvent) { 4306 throw new IllegalStateException("finished input event out of order"); 4307 } 4308 4309 if (q.mReceiver != null) { 4310 q.mReceiver.finishInputEvent(q.mEvent, handled); 4311 } else { 4312 q.mEvent.recycleIfNeededAfterDispatch(); 4313 } 4314 4315 recycleQueuedInputEvent(q); 4316 4317 mCurrentInputEvent = null; 4318 if (mFirstPendingInputEvent != null) { 4319 scheduleProcessInputEvents(); 4320 } 4321 } 4322 4323 void scheduleConsumeBatchedInput() { 4324 if (!mConsumeBatchedInputScheduled) { 4325 mConsumeBatchedInputScheduled = true; 4326 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4327 mConsumedBatchedInputRunnable, null); 4328 } 4329 } 4330 4331 void unscheduleConsumeBatchedInput() { 4332 if (mConsumeBatchedInputScheduled) { 4333 mConsumeBatchedInputScheduled = false; 4334 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4335 mConsumedBatchedInputRunnable, null); 4336 } 4337 } 4338 4339 void doConsumeBatchedInput(long frameTimeNanos) { 4340 if (mConsumeBatchedInputScheduled) { 4341 mConsumeBatchedInputScheduled = false; 4342 if (mInputEventReceiver != null) { 4343 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4344 } 4345 doProcessInputEvents(); 4346 } 4347 } 4348 4349 final class TraversalRunnable implements Runnable { 4350 @Override 4351 public void run() { 4352 doTraversal(); 4353 } 4354 } 4355 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4356 4357 final class WindowInputEventReceiver extends InputEventReceiver { 4358 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4359 super(inputChannel, looper); 4360 } 4361 4362 @Override 4363 public void onInputEvent(InputEvent event) { 4364 enqueueInputEvent(event, this, 0, true); 4365 } 4366 4367 @Override 4368 public void onBatchedInputEventPending() { 4369 scheduleConsumeBatchedInput(); 4370 } 4371 4372 @Override 4373 public void dispose() { 4374 unscheduleConsumeBatchedInput(); 4375 super.dispose(); 4376 } 4377 } 4378 WindowInputEventReceiver mInputEventReceiver; 4379 4380 final class ConsumeBatchedInputRunnable implements Runnable { 4381 @Override 4382 public void run() { 4383 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4384 } 4385 } 4386 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4387 new ConsumeBatchedInputRunnable(); 4388 boolean mConsumeBatchedInputScheduled; 4389 4390 final class InvalidateOnAnimationRunnable implements Runnable { 4391 private boolean mPosted; 4392 private ArrayList<View> mViews = new ArrayList<View>(); 4393 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4394 new ArrayList<AttachInfo.InvalidateInfo>(); 4395 private View[] mTempViews; 4396 private AttachInfo.InvalidateInfo[] mTempViewRects; 4397 4398 public void addView(View view) { 4399 synchronized (this) { 4400 mViews.add(view); 4401 postIfNeededLocked(); 4402 } 4403 } 4404 4405 public void addViewRect(AttachInfo.InvalidateInfo info) { 4406 synchronized (this) { 4407 mViewRects.add(info); 4408 postIfNeededLocked(); 4409 } 4410 } 4411 4412 public void removeView(View view) { 4413 synchronized (this) { 4414 mViews.remove(view); 4415 4416 for (int i = mViewRects.size(); i-- > 0; ) { 4417 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4418 if (info.target == view) { 4419 mViewRects.remove(i); 4420 info.release(); 4421 } 4422 } 4423 4424 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4425 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4426 mPosted = false; 4427 } 4428 } 4429 } 4430 4431 @Override 4432 public void run() { 4433 final int viewCount; 4434 final int viewRectCount; 4435 synchronized (this) { 4436 mPosted = false; 4437 4438 viewCount = mViews.size(); 4439 if (viewCount != 0) { 4440 mTempViews = mViews.toArray(mTempViews != null 4441 ? mTempViews : new View[viewCount]); 4442 mViews.clear(); 4443 } 4444 4445 viewRectCount = mViewRects.size(); 4446 if (viewRectCount != 0) { 4447 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4448 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4449 mViewRects.clear(); 4450 } 4451 } 4452 4453 for (int i = 0; i < viewCount; i++) { 4454 mTempViews[i].invalidate(); 4455 mTempViews[i] = null; 4456 } 4457 4458 for (int i = 0; i < viewRectCount; i++) { 4459 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4460 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4461 info.release(); 4462 } 4463 } 4464 4465 private void postIfNeededLocked() { 4466 if (!mPosted) { 4467 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4468 mPosted = true; 4469 } 4470 } 4471 } 4472 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4473 new InvalidateOnAnimationRunnable(); 4474 4475 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4476 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4477 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4478 } 4479 4480 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4481 long delayMilliseconds) { 4482 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4483 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4484 } 4485 4486 public void dispatchInvalidateOnAnimation(View view) { 4487 mInvalidateOnAnimationRunnable.addView(view); 4488 } 4489 4490 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4491 mInvalidateOnAnimationRunnable.addViewRect(info); 4492 } 4493 4494 public void enqueueDisplayList(DisplayList displayList) { 4495 mDisplayLists.add(displayList); 4496 4497 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4498 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4499 mHandler.sendMessage(msg); 4500 } 4501 4502 public void dequeueDisplayList(DisplayList displayList) { 4503 if (mDisplayLists.remove(displayList)) { 4504 displayList.invalidate(); 4505 if (mDisplayLists.size() == 0) { 4506 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4507 } 4508 } 4509 } 4510 4511 public void cancelInvalidate(View view) { 4512 mHandler.removeMessages(MSG_INVALIDATE, view); 4513 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4514 // them to the pool 4515 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4516 mInvalidateOnAnimationRunnable.removeView(view); 4517 } 4518 4519 public void dispatchKey(KeyEvent event) { 4520 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4521 msg.setAsynchronous(true); 4522 mHandler.sendMessage(msg); 4523 } 4524 4525 public void dispatchKeyFromIme(KeyEvent event) { 4526 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4527 msg.setAsynchronous(true); 4528 mHandler.sendMessage(msg); 4529 } 4530 4531 public void dispatchUnhandledKey(KeyEvent event) { 4532 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4533 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4534 final int keyCode = event.getKeyCode(); 4535 final int metaState = event.getMetaState(); 4536 4537 // Check for fallback actions specified by the key character map. 4538 KeyCharacterMap.FallbackAction fallbackAction = 4539 kcm.getFallbackAction(keyCode, metaState); 4540 if (fallbackAction != null) { 4541 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4542 KeyEvent fallbackEvent = KeyEvent.obtain( 4543 event.getDownTime(), event.getEventTime(), 4544 event.getAction(), fallbackAction.keyCode, 4545 event.getRepeatCount(), fallbackAction.metaState, 4546 event.getDeviceId(), event.getScanCode(), 4547 flags, event.getSource(), null); 4548 fallbackAction.recycle(); 4549 4550 dispatchKey(fallbackEvent); 4551 } 4552 } 4553 } 4554 4555 public void dispatchAppVisibility(boolean visible) { 4556 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4557 msg.arg1 = visible ? 1 : 0; 4558 mHandler.sendMessage(msg); 4559 } 4560 4561 public void dispatchScreenStateChange(boolean on) { 4562 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4563 msg.arg1 = on ? 1 : 0; 4564 mHandler.sendMessage(msg); 4565 } 4566 4567 public void dispatchGetNewSurface() { 4568 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4569 mHandler.sendMessage(msg); 4570 } 4571 4572 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4573 Message msg = Message.obtain(); 4574 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4575 msg.arg1 = hasFocus ? 1 : 0; 4576 msg.arg2 = inTouchMode ? 1 : 0; 4577 mHandler.sendMessage(msg); 4578 } 4579 4580 public void dispatchCloseSystemDialogs(String reason) { 4581 Message msg = Message.obtain(); 4582 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4583 msg.obj = reason; 4584 mHandler.sendMessage(msg); 4585 } 4586 4587 public void dispatchDragEvent(DragEvent event) { 4588 final int what; 4589 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4590 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4591 mHandler.removeMessages(what); 4592 } else { 4593 what = MSG_DISPATCH_DRAG_EVENT; 4594 } 4595 Message msg = mHandler.obtainMessage(what, event); 4596 mHandler.sendMessage(msg); 4597 } 4598 4599 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4600 int localValue, int localChanges) { 4601 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4602 args.seq = seq; 4603 args.globalVisibility = globalVisibility; 4604 args.localValue = localValue; 4605 args.localChanges = localChanges; 4606 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4607 } 4608 4609 public void dispatchDoneAnimating() { 4610 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4611 } 4612 4613 public void dispatchCheckFocus() { 4614 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4615 // This will result in a call to checkFocus() below. 4616 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4617 } 4618 } 4619 4620 /** 4621 * Post a callback to send a 4622 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4623 * This event is send at most once every 4624 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4625 */ 4626 private void postSendWindowContentChangedCallback(View source) { 4627 if (mSendWindowContentChangedAccessibilityEvent == null) { 4628 mSendWindowContentChangedAccessibilityEvent = 4629 new SendWindowContentChangedAccessibilityEvent(); 4630 } 4631 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4632 if (oldSource == null) { 4633 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4634 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4635 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4636 } else { 4637 mSendWindowContentChangedAccessibilityEvent.mSource = 4638 getCommonPredecessor(oldSource, source); 4639 } 4640 } 4641 4642 /** 4643 * Remove a posted callback to send a 4644 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4645 */ 4646 private void removeSendWindowContentChangedCallback() { 4647 if (mSendWindowContentChangedAccessibilityEvent != null) { 4648 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4649 } 4650 } 4651 4652 public boolean showContextMenuForChild(View originalView) { 4653 return false; 4654 } 4655 4656 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4657 return null; 4658 } 4659 4660 public void createContextMenu(ContextMenu menu) { 4661 } 4662 4663 public void childDrawableStateChanged(View child) { 4664 } 4665 4666 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4667 if (mView == null) { 4668 return false; 4669 } 4670 // Intercept accessibility focus events fired by virtual nodes to keep 4671 // track of accessibility focus position in such nodes. 4672 final int eventType = event.getEventType(); 4673 switch (eventType) { 4674 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4675 final long sourceNodeId = event.getSourceNodeId(); 4676 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4677 sourceNodeId); 4678 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4679 if (source != null) { 4680 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4681 if (provider != null) { 4682 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4683 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4684 setAccessibilityFocus(source, node); 4685 } 4686 } 4687 } break; 4688 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4689 final long sourceNodeId = event.getSourceNodeId(); 4690 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4691 sourceNodeId); 4692 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4693 if (source != null) { 4694 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4695 if (provider != null) { 4696 setAccessibilityFocus(null, null); 4697 } 4698 } 4699 } break; 4700 } 4701 mAccessibilityManager.sendAccessibilityEvent(event); 4702 return true; 4703 } 4704 4705 @Override 4706 public void childAccessibilityStateChanged(View child) { 4707 postSendWindowContentChangedCallback(child); 4708 } 4709 4710 private View getCommonPredecessor(View first, View second) { 4711 if (mAttachInfo != null) { 4712 if (mTempHashSet == null) { 4713 mTempHashSet = new HashSet<View>(); 4714 } 4715 HashSet<View> seen = mTempHashSet; 4716 seen.clear(); 4717 View firstCurrent = first; 4718 while (firstCurrent != null) { 4719 seen.add(firstCurrent); 4720 ViewParent firstCurrentParent = firstCurrent.mParent; 4721 if (firstCurrentParent instanceof View) { 4722 firstCurrent = (View) firstCurrentParent; 4723 } else { 4724 firstCurrent = null; 4725 } 4726 } 4727 View secondCurrent = second; 4728 while (secondCurrent != null) { 4729 if (seen.contains(secondCurrent)) { 4730 seen.clear(); 4731 return secondCurrent; 4732 } 4733 ViewParent secondCurrentParent = secondCurrent.mParent; 4734 if (secondCurrentParent instanceof View) { 4735 secondCurrent = (View) secondCurrentParent; 4736 } else { 4737 secondCurrent = null; 4738 } 4739 } 4740 seen.clear(); 4741 } 4742 return null; 4743 } 4744 4745 void checkThread() { 4746 if (mThread != Thread.currentThread()) { 4747 throw new CalledFromWrongThreadException( 4748 "Only the original thread that created a view hierarchy can touch its views."); 4749 } 4750 } 4751 4752 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4753 // ViewAncestor never intercepts touch event, so this can be a no-op 4754 } 4755 4756 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4757 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4758 if (rectangle != null) { 4759 mTempRect.set(rectangle); 4760 mTempRect.offset(0, -mCurScrollY); 4761 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4762 try { 4763 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4764 } catch (RemoteException re) { 4765 /* ignore */ 4766 } 4767 } 4768 return scrolled; 4769 } 4770 4771 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4772 // Do nothing. 4773 } 4774 4775 class TakenSurfaceHolder extends BaseSurfaceHolder { 4776 @Override 4777 public boolean onAllowLockCanvas() { 4778 return mDrawingAllowed; 4779 } 4780 4781 @Override 4782 public void onRelayoutContainer() { 4783 // Not currently interesting -- from changing between fixed and layout size. 4784 } 4785 4786 public void setFormat(int format) { 4787 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4788 } 4789 4790 public void setType(int type) { 4791 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4792 } 4793 4794 @Override 4795 public void onUpdateSurface() { 4796 // We take care of format and type changes on our own. 4797 throw new IllegalStateException("Shouldn't be here"); 4798 } 4799 4800 public boolean isCreating() { 4801 return mIsCreating; 4802 } 4803 4804 @Override 4805 public void setFixedSize(int width, int height) { 4806 throw new UnsupportedOperationException( 4807 "Currently only support sizing from layout"); 4808 } 4809 4810 public void setKeepScreenOn(boolean screenOn) { 4811 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4812 } 4813 } 4814 4815 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4816 private WeakReference<ViewRootImpl> mViewAncestor; 4817 4818 public InputMethodCallback(ViewRootImpl viewAncestor) { 4819 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4820 } 4821 4822 @Override 4823 public void finishedEvent(int seq, boolean handled) { 4824 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4825 if (viewAncestor != null) { 4826 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4827 } 4828 } 4829 } 4830 4831 static class W extends IWindow.Stub { 4832 private final WeakReference<ViewRootImpl> mViewAncestor; 4833 private final IWindowSession mWindowSession; 4834 4835 W(ViewRootImpl viewAncestor) { 4836 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4837 mWindowSession = viewAncestor.mWindowSession; 4838 } 4839 4840 public void resized(Rect frame, Rect contentInsets, 4841 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4842 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4843 if (viewAncestor != null) { 4844 viewAncestor.dispatchResized(frame, contentInsets, 4845 visibleInsets, reportDraw, newConfig); 4846 } 4847 } 4848 4849 @Override 4850 public void moved(int newX, int newY) { 4851 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4852 if (viewAncestor != null) { 4853 viewAncestor.dispatchMoved(newX, newY); 4854 } 4855 } 4856 4857 public void dispatchAppVisibility(boolean visible) { 4858 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4859 if (viewAncestor != null) { 4860 viewAncestor.dispatchAppVisibility(visible); 4861 } 4862 } 4863 4864 public void dispatchScreenState(boolean on) { 4865 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4866 if (viewAncestor != null) { 4867 viewAncestor.dispatchScreenStateChange(on); 4868 } 4869 } 4870 4871 public void dispatchGetNewSurface() { 4872 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4873 if (viewAncestor != null) { 4874 viewAncestor.dispatchGetNewSurface(); 4875 } 4876 } 4877 4878 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4879 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4880 if (viewAncestor != null) { 4881 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4882 } 4883 } 4884 4885 private static int checkCallingPermission(String permission) { 4886 try { 4887 return ActivityManagerNative.getDefault().checkPermission( 4888 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4889 } catch (RemoteException e) { 4890 return PackageManager.PERMISSION_DENIED; 4891 } 4892 } 4893 4894 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4895 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4896 if (viewAncestor != null) { 4897 final View view = viewAncestor.mView; 4898 if (view != null) { 4899 if (checkCallingPermission(Manifest.permission.DUMP) != 4900 PackageManager.PERMISSION_GRANTED) { 4901 throw new SecurityException("Insufficient permissions to invoke" 4902 + " executeCommand() from pid=" + Binder.getCallingPid() 4903 + ", uid=" + Binder.getCallingUid()); 4904 } 4905 4906 OutputStream clientStream = null; 4907 try { 4908 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4909 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4910 } catch (IOException e) { 4911 e.printStackTrace(); 4912 } finally { 4913 if (clientStream != null) { 4914 try { 4915 clientStream.close(); 4916 } catch (IOException e) { 4917 e.printStackTrace(); 4918 } 4919 } 4920 } 4921 } 4922 } 4923 } 4924 4925 public void closeSystemDialogs(String reason) { 4926 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4927 if (viewAncestor != null) { 4928 viewAncestor.dispatchCloseSystemDialogs(reason); 4929 } 4930 } 4931 4932 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4933 boolean sync) { 4934 if (sync) { 4935 try { 4936 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4937 } catch (RemoteException e) { 4938 } 4939 } 4940 } 4941 4942 public void dispatchWallpaperCommand(String action, int x, int y, 4943 int z, Bundle extras, boolean sync) { 4944 if (sync) { 4945 try { 4946 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4947 } catch (RemoteException e) { 4948 } 4949 } 4950 } 4951 4952 /* Drag/drop */ 4953 public void dispatchDragEvent(DragEvent event) { 4954 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4955 if (viewAncestor != null) { 4956 viewAncestor.dispatchDragEvent(event); 4957 } 4958 } 4959 4960 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4961 int localValue, int localChanges) { 4962 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4963 if (viewAncestor != null) { 4964 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4965 localValue, localChanges); 4966 } 4967 } 4968 4969 public void doneAnimating() { 4970 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4971 if (viewAncestor != null) { 4972 viewAncestor.dispatchDoneAnimating(); 4973 } 4974 } 4975 } 4976 4977 /** 4978 * Maintains state information for a single trackball axis, generating 4979 * discrete (DPAD) movements based on raw trackball motion. 4980 */ 4981 static final class TrackballAxis { 4982 /** 4983 * The maximum amount of acceleration we will apply. 4984 */ 4985 static final float MAX_ACCELERATION = 20; 4986 4987 /** 4988 * The maximum amount of time (in milliseconds) between events in order 4989 * for us to consider the user to be doing fast trackball movements, 4990 * and thus apply an acceleration. 4991 */ 4992 static final long FAST_MOVE_TIME = 150; 4993 4994 /** 4995 * Scaling factor to the time (in milliseconds) between events to how 4996 * much to multiple/divide the current acceleration. When movement 4997 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4998 * FAST_MOVE_TIME it divides it. 4999 */ 5000 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5001 5002 float position; 5003 float absPosition; 5004 float acceleration = 1; 5005 long lastMoveTime = 0; 5006 int step; 5007 int dir; 5008 int nonAccelMovement; 5009 5010 void reset(int _step) { 5011 position = 0; 5012 acceleration = 1; 5013 lastMoveTime = 0; 5014 step = _step; 5015 dir = 0; 5016 } 5017 5018 /** 5019 * Add trackball movement into the state. If the direction of movement 5020 * has been reversed, the state is reset before adding the 5021 * movement (so that you don't have to compensate for any previously 5022 * collected movement before see the result of the movement in the 5023 * new direction). 5024 * 5025 * @return Returns the absolute value of the amount of movement 5026 * collected so far. 5027 */ 5028 float collect(float off, long time, String axis) { 5029 long normTime; 5030 if (off > 0) { 5031 normTime = (long)(off * FAST_MOVE_TIME); 5032 if (dir < 0) { 5033 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5034 position = 0; 5035 step = 0; 5036 acceleration = 1; 5037 lastMoveTime = 0; 5038 } 5039 dir = 1; 5040 } else if (off < 0) { 5041 normTime = (long)((-off) * FAST_MOVE_TIME); 5042 if (dir > 0) { 5043 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5044 position = 0; 5045 step = 0; 5046 acceleration = 1; 5047 lastMoveTime = 0; 5048 } 5049 dir = -1; 5050 } else { 5051 normTime = 0; 5052 } 5053 5054 // The number of milliseconds between each movement that is 5055 // considered "normal" and will not result in any acceleration 5056 // or deceleration, scaled by the offset we have here. 5057 if (normTime > 0) { 5058 long delta = time - lastMoveTime; 5059 lastMoveTime = time; 5060 float acc = acceleration; 5061 if (delta < normTime) { 5062 // The user is scrolling rapidly, so increase acceleration. 5063 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5064 if (scale > 1) acc *= scale; 5065 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5066 + off + " normTime=" + normTime + " delta=" + delta 5067 + " scale=" + scale + " acc=" + acc); 5068 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5069 } else { 5070 // The user is scrolling slowly, so decrease acceleration. 5071 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5072 if (scale > 1) acc /= scale; 5073 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5074 + off + " normTime=" + normTime + " delta=" + delta 5075 + " scale=" + scale + " acc=" + acc); 5076 acceleration = acc > 1 ? acc : 1; 5077 } 5078 } 5079 position += off; 5080 return (absPosition = Math.abs(position)); 5081 } 5082 5083 /** 5084 * Generate the number of discrete movement events appropriate for 5085 * the currently collected trackball movement. 5086 * 5087 * @param precision The minimum movement required to generate the 5088 * first discrete movement. 5089 * 5090 * @return Returns the number of discrete movements, either positive 5091 * or negative, or 0 if there is not enough trackball movement yet 5092 * for a discrete movement. 5093 */ 5094 int generate(float precision) { 5095 int movement = 0; 5096 nonAccelMovement = 0; 5097 do { 5098 final int dir = position >= 0 ? 1 : -1; 5099 switch (step) { 5100 // If we are going to execute the first step, then we want 5101 // to do this as soon as possible instead of waiting for 5102 // a full movement, in order to make things look responsive. 5103 case 0: 5104 if (absPosition < precision) { 5105 return movement; 5106 } 5107 movement += dir; 5108 nonAccelMovement += dir; 5109 step = 1; 5110 break; 5111 // If we have generated the first movement, then we need 5112 // to wait for the second complete trackball motion before 5113 // generating the second discrete movement. 5114 case 1: 5115 if (absPosition < 2) { 5116 return movement; 5117 } 5118 movement += dir; 5119 nonAccelMovement += dir; 5120 position += dir > 0 ? -2 : 2; 5121 absPosition = Math.abs(position); 5122 step = 2; 5123 break; 5124 // After the first two, we generate discrete movements 5125 // consistently with the trackball, applying an acceleration 5126 // if the trackball is moving quickly. This is a simple 5127 // acceleration on top of what we already compute based 5128 // on how quickly the wheel is being turned, to apply 5129 // a longer increasing acceleration to continuous movement 5130 // in one direction. 5131 default: 5132 if (absPosition < 1) { 5133 return movement; 5134 } 5135 movement += dir; 5136 position += dir >= 0 ? -1 : 1; 5137 absPosition = Math.abs(position); 5138 float acc = acceleration; 5139 acc *= 1.1f; 5140 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5141 break; 5142 } 5143 } while (true); 5144 } 5145 } 5146 5147 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5148 public CalledFromWrongThreadException(String msg) { 5149 super(msg); 5150 } 5151 } 5152 5153 private SurfaceHolder mHolder = new SurfaceHolder() { 5154 // we only need a SurfaceHolder for opengl. it would be nice 5155 // to implement everything else though, especially the callback 5156 // support (opengl doesn't make use of it right now, but eventually 5157 // will). 5158 public Surface getSurface() { 5159 return mSurface; 5160 } 5161 5162 public boolean isCreating() { 5163 return false; 5164 } 5165 5166 public void addCallback(Callback callback) { 5167 } 5168 5169 public void removeCallback(Callback callback) { 5170 } 5171 5172 public void setFixedSize(int width, int height) { 5173 } 5174 5175 public void setSizeFromLayout() { 5176 } 5177 5178 public void setFormat(int format) { 5179 } 5180 5181 public void setType(int type) { 5182 } 5183 5184 public void setKeepScreenOn(boolean screenOn) { 5185 } 5186 5187 public Canvas lockCanvas() { 5188 return null; 5189 } 5190 5191 public Canvas lockCanvas(Rect dirty) { 5192 return null; 5193 } 5194 5195 public void unlockCanvasAndPost(Canvas canvas) { 5196 } 5197 public Rect getSurfaceFrame() { 5198 return null; 5199 } 5200 }; 5201 5202 static RunQueue getRunQueue() { 5203 RunQueue rq = sRunQueues.get(); 5204 if (rq != null) { 5205 return rq; 5206 } 5207 rq = new RunQueue(); 5208 sRunQueues.set(rq); 5209 return rq; 5210 } 5211 5212 /** 5213 * The run queue is used to enqueue pending work from Views when no Handler is 5214 * attached. The work is executed during the next call to performTraversals on 5215 * the thread. 5216 * @hide 5217 */ 5218 static final class RunQueue { 5219 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5220 5221 void post(Runnable action) { 5222 postDelayed(action, 0); 5223 } 5224 5225 void postDelayed(Runnable action, long delayMillis) { 5226 HandlerAction handlerAction = new HandlerAction(); 5227 handlerAction.action = action; 5228 handlerAction.delay = delayMillis; 5229 5230 synchronized (mActions) { 5231 mActions.add(handlerAction); 5232 } 5233 } 5234 5235 void removeCallbacks(Runnable action) { 5236 final HandlerAction handlerAction = new HandlerAction(); 5237 handlerAction.action = action; 5238 5239 synchronized (mActions) { 5240 final ArrayList<HandlerAction> actions = mActions; 5241 5242 while (actions.remove(handlerAction)) { 5243 // Keep going 5244 } 5245 } 5246 } 5247 5248 void executeActions(Handler handler) { 5249 synchronized (mActions) { 5250 final ArrayList<HandlerAction> actions = mActions; 5251 final int count = actions.size(); 5252 5253 for (int i = 0; i < count; i++) { 5254 final HandlerAction handlerAction = actions.get(i); 5255 handler.postDelayed(handlerAction.action, handlerAction.delay); 5256 } 5257 5258 actions.clear(); 5259 } 5260 } 5261 5262 private static class HandlerAction { 5263 Runnable action; 5264 long delay; 5265 5266 @Override 5267 public boolean equals(Object o) { 5268 if (this == o) return true; 5269 if (o == null || getClass() != o.getClass()) return false; 5270 5271 HandlerAction that = (HandlerAction) o; 5272 return !(action != null ? !action.equals(that.action) : that.action != null); 5273 5274 } 5275 5276 @Override 5277 public int hashCode() { 5278 int result = action != null ? action.hashCode() : 0; 5279 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5280 return result; 5281 } 5282 } 5283 } 5284 5285 /** 5286 * Class for managing the accessibility interaction connection 5287 * based on the global accessibility state. 5288 */ 5289 final class AccessibilityInteractionConnectionManager 5290 implements AccessibilityStateChangeListener { 5291 public void onAccessibilityStateChanged(boolean enabled) { 5292 if (enabled) { 5293 ensureConnection(); 5294 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5295 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5296 View focusedView = mView.findFocus(); 5297 if (focusedView != null && focusedView != mView) { 5298 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5299 } 5300 } 5301 } else { 5302 ensureNoConnection(); 5303 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5304 } 5305 } 5306 5307 public void ensureConnection() { 5308 if (mAttachInfo != null) { 5309 final boolean registered = 5310 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5311 if (!registered) { 5312 mAttachInfo.mAccessibilityWindowId = 5313 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5314 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5315 } 5316 } 5317 } 5318 5319 public void ensureNoConnection() { 5320 final boolean registered = 5321 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5322 if (registered) { 5323 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5324 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5325 } 5326 } 5327 } 5328 5329 /** 5330 * This class is an interface this ViewAncestor provides to the 5331 * AccessibilityManagerService to the latter can interact with 5332 * the view hierarchy in this ViewAncestor. 5333 */ 5334 static final class AccessibilityInteractionConnection 5335 extends IAccessibilityInteractionConnection.Stub { 5336 private final WeakReference<ViewRootImpl> mViewRootImpl; 5337 5338 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5339 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5340 } 5341 5342 @Override 5343 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5344 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5345 int interrogatingPid, long interrogatingTid) { 5346 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5347 if (viewRootImpl != null && viewRootImpl.mView != null) { 5348 viewRootImpl.getAccessibilityInteractionController() 5349 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5350 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5351 } else { 5352 // We cannot make the call and notify the caller so it does not wait. 5353 try { 5354 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5355 } catch (RemoteException re) { 5356 /* best effort - ignore */ 5357 } 5358 } 5359 } 5360 5361 @Override 5362 public void performAccessibilityAction(long accessibilityNodeId, int action, 5363 Bundle arguments, int interactionId, 5364 IAccessibilityInteractionConnectionCallback callback, int flags, 5365 int interogatingPid, long interrogatingTid) { 5366 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5367 if (viewRootImpl != null && viewRootImpl.mView != null) { 5368 viewRootImpl.getAccessibilityInteractionController() 5369 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5370 interactionId, callback, flags, interogatingPid, interrogatingTid); 5371 } else { 5372 // We cannot make the call and notify the caller so it does not wait. 5373 try { 5374 callback.setPerformAccessibilityActionResult(false, interactionId); 5375 } catch (RemoteException re) { 5376 /* best effort - ignore */ 5377 } 5378 } 5379 } 5380 5381 @Override 5382 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5383 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5384 int interrogatingPid, long interrogatingTid) { 5385 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5386 if (viewRootImpl != null && viewRootImpl.mView != null) { 5387 viewRootImpl.getAccessibilityInteractionController() 5388 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5389 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5390 } else { 5391 // We cannot make the call and notify the caller so it does not wait. 5392 try { 5393 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5394 } catch (RemoteException re) { 5395 /* best effort - ignore */ 5396 } 5397 } 5398 } 5399 5400 @Override 5401 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5402 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5403 int interrogatingPid, long interrogatingTid) { 5404 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5405 if (viewRootImpl != null && viewRootImpl.mView != null) { 5406 viewRootImpl.getAccessibilityInteractionController() 5407 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5408 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5409 } else { 5410 // We cannot make the call and notify the caller so it does not wait. 5411 try { 5412 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5413 } catch (RemoteException re) { 5414 /* best effort - ignore */ 5415 } 5416 } 5417 } 5418 5419 @Override 5420 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5421 IAccessibilityInteractionConnectionCallback callback, int flags, 5422 int interrogatingPid, long interrogatingTid) { 5423 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5424 if (viewRootImpl != null && viewRootImpl.mView != null) { 5425 viewRootImpl.getAccessibilityInteractionController() 5426 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5427 flags, interrogatingPid, interrogatingTid); 5428 } else { 5429 // We cannot make the call and notify the caller so it does not wait. 5430 try { 5431 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5432 } catch (RemoteException re) { 5433 /* best effort - ignore */ 5434 } 5435 } 5436 } 5437 5438 @Override 5439 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5440 IAccessibilityInteractionConnectionCallback callback, int flags, 5441 int interrogatingPid, long interrogatingTid) { 5442 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5443 if (viewRootImpl != null && viewRootImpl.mView != null) { 5444 viewRootImpl.getAccessibilityInteractionController() 5445 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5446 callback, flags, interrogatingPid, interrogatingTid); 5447 } else { 5448 // We cannot make the call and notify the caller so it does not wait. 5449 try { 5450 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5451 } catch (RemoteException re) { 5452 /* best effort - ignore */ 5453 } 5454 } 5455 } 5456 } 5457 5458 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5459 public View mSource; 5460 5461 public void run() { 5462 if (mSource != null) { 5463 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5464 mSource.resetAccessibilityStateChanged(); 5465 mSource = null; 5466 } 5467 } 5468 } 5469} 5470