ViewRootImpl.java revision d95316e2c78c7e6cfacac9cced66f7ace36d6497
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.Matrix; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Region; 41import android.graphics.drawable.Drawable; 42import android.media.AudioManager; 43import android.os.Binder; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.LatencyTimer; 48import android.os.Looper; 49import android.os.Message; 50import android.os.ParcelFileDescriptor; 51import android.os.PowerManager; 52import android.os.Process; 53import android.os.RemoteException; 54import android.os.SystemClock; 55import android.os.SystemProperties; 56import android.os.Trace; 57import android.util.AndroidRuntimeException; 58import android.util.DisplayMetrics; 59import android.util.Log; 60import android.util.Slog; 61import android.util.TypedValue; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.os.SomeArgs; 79import com.android.internal.policy.PolicyManager; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.HashSet; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerGlobal}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 99 private static final String TAG = "ViewRootImpl"; 100 private static final boolean DBG = false; 101 private static final boolean LOCAL_LOGV = false; 102 /** @noinspection PointlessBooleanExpression*/ 103 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 104 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 105 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 106 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 107 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 109 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 110 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_FPS = false; 112 113 private static final boolean USE_RENDER_THREAD = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 131 132 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 133 static boolean sFirstDrawComplete = false; 134 135 static final ArrayList<ComponentCallbacks> sConfigCallbacks 136 = new ArrayList<ComponentCallbacks>(); 137 138 private static boolean sUseRenderThread = false; 139 private static boolean sRenderThreadQueried = false; 140 private static final Object[] sRenderThreadQueryLock = new Object[0]; 141 142 final IWindowSession mWindowSession; 143 final Display mDisplay; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 /** Set to true while in performTraversals for detecting when die(true) is called from internal 220 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 221 boolean mIsInTraversal; 222 boolean mFitSystemWindowsRequested; 223 boolean mLayoutRequested; 224 boolean mFirst; 225 boolean mReportNextDraw; 226 boolean mFullRedrawNeeded; 227 boolean mNewSurfaceNeeded; 228 boolean mHasHadWindowFocus; 229 boolean mLastWasImTarget; 230 boolean mWindowsAnimating; 231 boolean mIsDrawing; 232 int mLastSystemUiVisibility; 233 int mClientWindowLayoutFlags; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 final CompatibilityInfoHolder mCompatibilityInfo; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 boolean mScrollMayChange; 271 int mSoftInputMode; 272 View mLastScrolledFocus; 273 int mScrollY; 274 int mCurScrollY; 275 Scroller mScroller; 276 HardwareLayer mResizeBuffer; 277 long mResizeBufferStartTime; 278 int mResizeBufferDuration; 279 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 280 private ArrayList<LayoutTransition> mPendingTransitions; 281 282 final ViewConfiguration mViewConfiguration; 283 284 /* Drag/drop */ 285 ClipDescription mDragDescription; 286 View mCurrentDragView; 287 volatile Object mLocalDragState; 288 final PointF mDragPoint = new PointF(); 289 final PointF mLastTouchPoint = new PointF(); 290 291 private boolean mProfileRendering; 292 private Thread mRenderProfiler; 293 private volatile boolean mRenderProfilingEnabled; 294 295 // Variables to track frames per second, enabled via DEBUG_FPS flag 296 private long mFpsStartTime = -1; 297 private long mFpsPrevTime = -1; 298 private int mFpsNumFrames; 299 300 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 301 302 /** 303 * see {@link #playSoundEffect(int)} 304 */ 305 AudioManager mAudioManager; 306 307 final AccessibilityManager mAccessibilityManager; 308 309 AccessibilityInteractionController mAccessibilityInteractionController; 310 311 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 312 313 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 314 315 HashSet<View> mTempHashSet; 316 317 private final int mDensity; 318 private final int mNoncompatDensity; 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 mFallbackEventHandler.setView(view); 469 mWindowAttributes.copyFrom(attrs); 470 attrs = mWindowAttributes; 471 // Keep track of the actual window flags supplied by the client. 472 mClientWindowLayoutFlags = attrs.flags; 473 474 setAccessibilityFocus(null, null); 475 476 if (view instanceof RootViewSurfaceTaker) { 477 mSurfaceHolderCallback = 478 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 479 if (mSurfaceHolderCallback != null) { 480 mSurfaceHolder = new TakenSurfaceHolder(); 481 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 482 } 483 } 484 485 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 486 mTranslator = compatibilityInfo.getTranslator(); 487 488 // If the application owns the surface, don't enable hardware acceleration 489 if (mSurfaceHolder == null) { 490 enableHardwareAcceleration(mView.getContext(), attrs); 491 } 492 493 boolean restore = false; 494 if (mTranslator != null) { 495 mSurface.setCompatibilityTranslator(mTranslator); 496 restore = true; 497 attrs.backup(); 498 mTranslator.translateWindowLayout(attrs); 499 } 500 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 501 502 if (!compatibilityInfo.supportsScreen()) { 503 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 504 mLastInCompatMode = true; 505 } 506 507 mSoftInputMode = attrs.softInputMode; 508 mWindowAttributesChanged = true; 509 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 510 mAttachInfo.mRootView = view; 511 mAttachInfo.mScalingRequired = mTranslator != null; 512 mAttachInfo.mApplicationScale = 513 mTranslator == null ? 1.0f : mTranslator.applicationScale; 514 if (panelParentView != null) { 515 mAttachInfo.mPanelParentWindowToken 516 = panelParentView.getApplicationWindowToken(); 517 } 518 mAdded = true; 519 int res; /* = WindowManagerImpl.ADD_OKAY; */ 520 521 // Schedule the first layout -before- adding to the window 522 // manager, to make sure we do the relayout before receiving 523 // any other events from the system. 524 requestLayout(); 525 if ((mWindowAttributes.inputFeatures 526 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 527 mInputChannel = new InputChannel(); 528 } 529 try { 530 mOrigWindowType = mWindowAttributes.type; 531 mAttachInfo.mRecomputeGlobalAttributes = true; 532 collectViewAttributes(); 533 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 534 getHostVisibility(), mDisplay.getDisplayId(), 535 mAttachInfo.mContentInsets, mInputChannel); 536 } catch (RemoteException e) { 537 mAdded = false; 538 mView = null; 539 mAttachInfo.mRootView = null; 540 mInputChannel = null; 541 mFallbackEventHandler.setView(null); 542 unscheduleTraversals(); 543 setAccessibilityFocus(null, null); 544 throw new RuntimeException("Adding window failed", e); 545 } finally { 546 if (restore) { 547 attrs.restore(); 548 } 549 } 550 551 if (mTranslator != null) { 552 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 553 } 554 mPendingContentInsets.set(mAttachInfo.mContentInsets); 555 mPendingVisibleInsets.set(0, 0, 0, 0); 556 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 557 if (res < WindowManagerGlobal.ADD_OKAY) { 558 mView = null; 559 mAttachInfo.mRootView = null; 560 mAdded = false; 561 mFallbackEventHandler.setView(null); 562 unscheduleTraversals(); 563 setAccessibilityFocus(null, null); 564 switch (res) { 565 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 566 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 567 throw new WindowManager.BadTokenException( 568 "Unable to add window -- token " + attrs.token 569 + " is not valid; is your activity running?"); 570 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 571 throw new WindowManager.BadTokenException( 572 "Unable to add window -- token " + attrs.token 573 + " is not for an application"); 574 case WindowManagerGlobal.ADD_APP_EXITING: 575 throw new WindowManager.BadTokenException( 576 "Unable to add window -- app for token " + attrs.token 577 + " is exiting"); 578 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 579 throw new WindowManager.BadTokenException( 580 "Unable to add window -- window " + mWindow 581 + " has already been added"); 582 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 583 // Silently ignore -- we would have just removed it 584 // right away, anyway. 585 return; 586 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 587 throw new WindowManager.BadTokenException( 588 "Unable to add window " + mWindow + 589 " -- another window of this type already exists"); 590 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 591 throw new WindowManager.BadTokenException( 592 "Unable to add window " + mWindow + 593 " -- permission denied for this window type"); 594 } 595 throw new RuntimeException( 596 "Unable to add window -- unknown error code " + res); 597 } 598 599 if (view instanceof RootViewSurfaceTaker) { 600 mInputQueueCallback = 601 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 602 } 603 if (mInputChannel != null) { 604 if (mInputQueueCallback != null) { 605 mInputQueue = new InputQueue(mInputChannel); 606 mInputQueueCallback.onInputQueueCreated(mInputQueue); 607 } else { 608 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 609 Looper.myLooper()); 610 } 611 } 612 613 view.assignParent(this); 614 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 615 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 616 617 if (mAccessibilityManager.isEnabled()) { 618 mAccessibilityInteractionConnectionManager.ensureConnection(); 619 } 620 621 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 622 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 623 } 624 } 625 } 626 } 627 628 void destroyHardwareResources() { 629 if (mAttachInfo.mHardwareRenderer != null) { 630 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 631 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 632 } 633 mAttachInfo.mHardwareRenderer.destroy(false); 634 } 635 } 636 637 void terminateHardwareResources() { 638 if (mAttachInfo.mHardwareRenderer != null) { 639 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 640 mAttachInfo.mHardwareRenderer.destroy(false); 641 } 642 } 643 644 void destroyHardwareLayers() { 645 if (mThread != Thread.currentThread()) { 646 if (mAttachInfo.mHardwareRenderer != null && 647 mAttachInfo.mHardwareRenderer.isEnabled()) { 648 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 649 } 650 } else { 651 if (mAttachInfo.mHardwareRenderer != null && 652 mAttachInfo.mHardwareRenderer.isEnabled()) { 653 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 654 } 655 } 656 } 657 658 void pushHardwareLayerUpdate(HardwareLayer layer) { 659 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 660 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 661 } 662 } 663 664 public boolean attachFunctor(int functor) { 665 //noinspection SimplifiableIfStatement 666 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 667 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 668 } 669 return false; 670 } 671 672 public void detachFunctor(int functor) { 673 if (mAttachInfo.mHardwareRenderer != null) { 674 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 675 } 676 } 677 678 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 679 mAttachInfo.mHardwareAccelerated = false; 680 mAttachInfo.mHardwareAccelerationRequested = false; 681 682 // Don't enable hardware acceleration when the application is in compatibility mode 683 if (mTranslator != null) return; 684 685 // Try to enable hardware acceleration if requested 686 final boolean hardwareAccelerated = 687 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 688 689 if (hardwareAccelerated) { 690 if (!HardwareRenderer.isAvailable()) { 691 return; 692 } 693 694 // Persistent processes (including the system) should not do 695 // accelerated rendering on low-end devices. In that case, 696 // sRendererDisabled will be set. In addition, the system process 697 // itself should never do accelerated rendering. In that case, both 698 // sRendererDisabled and sSystemRendererDisabled are set. When 699 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 700 // can be used by code on the system process to escape that and enable 701 // HW accelerated drawing. (This is basically for the lock screen.) 702 703 final boolean fakeHwAccelerated = (attrs.privateFlags & 704 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 705 final boolean forceHwAccelerated = (attrs.privateFlags & 706 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 707 708 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 709 && forceHwAccelerated)) { 710 // Don't enable hardware acceleration when we're not on the main thread 711 if (!HardwareRenderer.sSystemRendererDisabled && 712 Looper.getMainLooper() != Looper.myLooper()) { 713 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 714 + "acceleration outside of the main thread, aborting"); 715 return; 716 } 717 718 final boolean renderThread = isRenderThreadRequested(context); 719 if (renderThread) { 720 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 721 } 722 723 if (mAttachInfo.mHardwareRenderer != null) { 724 mAttachInfo.mHardwareRenderer.destroy(true); 725 } 726 727 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 728 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 729 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 730 = mAttachInfo.mHardwareRenderer != null; 731 732 } else if (fakeHwAccelerated) { 733 // The window had wanted to use hardware acceleration, but this 734 // is not allowed in its process. By setting this flag, it can 735 // still render as if it was accelerated. This is basically for 736 // the preview windows the window manager shows for launching 737 // applications, so they will look more like the app being launched. 738 mAttachInfo.mHardwareAccelerationRequested = true; 739 } 740 } 741 } 742 743 public View getView() { 744 return mView; 745 } 746 747 final WindowLeaked getLocation() { 748 return mLocation; 749 } 750 751 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 752 synchronized (this) { 753 int oldSoftInputMode = mWindowAttributes.softInputMode; 754 // Keep track of the actual window flags supplied by the client. 755 mClientWindowLayoutFlags = attrs.flags; 756 // preserve compatible window flag if exists. 757 int compatibleWindowFlag = 758 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 759 // transfer over system UI visibility values as they carry current state. 760 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 761 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 762 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 763 mWindowAttributes.flags |= compatibleWindowFlag; 764 765 applyKeepScreenOnFlag(mWindowAttributes); 766 767 if (newView) { 768 mSoftInputMode = attrs.softInputMode; 769 requestLayout(); 770 } 771 // Don't lose the mode we last auto-computed. 772 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 773 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 774 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 775 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 776 | (oldSoftInputMode 777 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 778 } 779 mWindowAttributesChanged = true; 780 scheduleTraversals(); 781 } 782 } 783 784 void handleAppVisibility(boolean visible) { 785 if (mAppVisible != visible) { 786 mAppVisible = visible; 787 scheduleTraversals(); 788 } 789 } 790 791 void handleGetNewSurface() { 792 mNewSurfaceNeeded = true; 793 mFullRedrawNeeded = true; 794 scheduleTraversals(); 795 } 796 797 void handleScreenStateChange(boolean on) { 798 if (on != mAttachInfo.mScreenOn) { 799 mAttachInfo.mScreenOn = on; 800 if (mView != null) { 801 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 802 } 803 if (on) { 804 mFullRedrawNeeded = true; 805 scheduleTraversals(); 806 } 807 } 808 } 809 810 /** 811 * {@inheritDoc} 812 */ 813 public void requestFitSystemWindows() { 814 checkThread(); 815 mFitSystemWindowsRequested = true; 816 scheduleTraversals(); 817 } 818 819 /** 820 * {@inheritDoc} 821 */ 822 public void requestLayout() { 823 checkThread(); 824 mLayoutRequested = true; 825 scheduleTraversals(); 826 } 827 828 /** 829 * {@inheritDoc} 830 */ 831 public boolean isLayoutRequested() { 832 return mLayoutRequested; 833 } 834 835 void invalidate() { 836 mDirty.set(0, 0, mWidth, mHeight); 837 scheduleTraversals(); 838 } 839 840 void invalidateWorld(View view) { 841 view.invalidate(); 842 if (view instanceof ViewGroup) { 843 ViewGroup parent = (ViewGroup) view; 844 for (int i = 0; i < parent.getChildCount(); i++) { 845 invalidateWorld(parent.getChildAt(i)); 846 } 847 } 848 } 849 850 public void invalidateChild(View child, Rect dirty) { 851 invalidateChildInParent(null, dirty); 852 } 853 854 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 855 checkThread(); 856 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 857 858 if (dirty == null) { 859 invalidate(); 860 return null; 861 } else if (dirty.isEmpty()) { 862 return null; 863 } 864 865 if (mCurScrollY != 0 || mTranslator != null) { 866 mTempRect.set(dirty); 867 dirty = mTempRect; 868 if (mCurScrollY != 0) { 869 dirty.offset(0, -mCurScrollY); 870 } 871 if (mTranslator != null) { 872 mTranslator.translateRectInAppWindowToScreen(dirty); 873 } 874 if (mAttachInfo.mScalingRequired) { 875 dirty.inset(-1, -1); 876 } 877 } 878 879 final Rect localDirty = mDirty; 880 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 881 mAttachInfo.mSetIgnoreDirtyState = true; 882 mAttachInfo.mIgnoreDirtyState = true; 883 } 884 885 // Add the new dirty rect to the current one 886 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 887 // Intersect with the bounds of the window to skip 888 // updates that lie outside of the visible region 889 final float appScale = mAttachInfo.mApplicationScale; 890 if (localDirty.intersect(0, 0, 891 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)) && 892 !mWillDrawSoon) { 893 scheduleTraversals(); 894 } else { 895 localDirty.setEmpty(); 896 } 897 898 return null; 899 } 900 901 void setStopped(boolean stopped) { 902 if (mStopped != stopped) { 903 mStopped = stopped; 904 if (!stopped) { 905 scheduleTraversals(); 906 } 907 } 908 } 909 910 public ViewParent getParent() { 911 return null; 912 } 913 914 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 915 if (child != mView) { 916 throw new RuntimeException("child is not mine, honest!"); 917 } 918 // Note: don't apply scroll offset, because we want to know its 919 // visibility in the virtual canvas being given to the view hierarchy. 920 return r.intersect(0, 0, mWidth, mHeight); 921 } 922 923 public void bringChildToFront(View child) { 924 } 925 926 int getHostVisibility() { 927 return mAppVisible ? mView.getVisibility() : View.GONE; 928 } 929 930 void disposeResizeBuffer() { 931 if (mResizeBuffer != null) { 932 mResizeBuffer.destroy(); 933 mResizeBuffer = null; 934 } 935 } 936 937 /** 938 * Add LayoutTransition to the list of transitions to be started in the next traversal. 939 * This list will be cleared after the transitions on the list are start()'ed. These 940 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 941 * happens during the layout phase of traversal, which we want to complete before any of the 942 * animations are started (because those animations may side-effect properties that layout 943 * depends upon, like the bounding rectangles of the affected views). So we add the transition 944 * to the list and it is started just prior to starting the drawing phase of traversal. 945 * 946 * @param transition The LayoutTransition to be started on the next traversal. 947 * 948 * @hide 949 */ 950 public void requestTransitionStart(LayoutTransition transition) { 951 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 952 if (mPendingTransitions == null) { 953 mPendingTransitions = new ArrayList<LayoutTransition>(); 954 } 955 mPendingTransitions.add(transition); 956 } 957 } 958 959 void scheduleTraversals() { 960 if (!mTraversalScheduled) { 961 mTraversalScheduled = true; 962 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 963 mChoreographer.postCallback( 964 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 965 scheduleConsumeBatchedInput(); 966 } 967 } 968 969 void unscheduleTraversals() { 970 if (mTraversalScheduled) { 971 mTraversalScheduled = false; 972 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 973 mChoreographer.removeCallbacks( 974 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 975 } 976 } 977 978 void doTraversal() { 979 if (mTraversalScheduled) { 980 mTraversalScheduled = false; 981 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 982 983 if (mProfile) { 984 Debug.startMethodTracing("ViewAncestor"); 985 } 986 987 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 988 try { 989 performTraversals(); 990 } finally { 991 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 992 } 993 994 if (mProfile) { 995 Debug.stopMethodTracing(); 996 mProfile = false; 997 } 998 } 999 } 1000 1001 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1002 // Update window's global keep screen on flag: if a view has requested 1003 // that the screen be kept on, then it is always set; otherwise, it is 1004 // set to whatever the client last requested for the global state. 1005 if (mAttachInfo.mKeepScreenOn) { 1006 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1007 } else { 1008 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1009 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1010 } 1011 } 1012 1013 private boolean collectViewAttributes() { 1014 final View.AttachInfo attachInfo = mAttachInfo; 1015 if (attachInfo.mRecomputeGlobalAttributes) { 1016 //Log.i(TAG, "Computing view hierarchy attributes!"); 1017 attachInfo.mRecomputeGlobalAttributes = false; 1018 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1019 attachInfo.mKeepScreenOn = false; 1020 attachInfo.mSystemUiVisibility = 0; 1021 attachInfo.mHasSystemUiListeners = false; 1022 mView.dispatchCollectViewAttributes(attachInfo, 0); 1023 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1024 WindowManager.LayoutParams params = mWindowAttributes; 1025 if (attachInfo.mKeepScreenOn != oldScreenOn 1026 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1027 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1028 applyKeepScreenOnFlag(params); 1029 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1030 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1031 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1032 return true; 1033 } 1034 } 1035 return false; 1036 } 1037 1038 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1039 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1040 int childWidthMeasureSpec; 1041 int childHeightMeasureSpec; 1042 boolean windowSizeMayChange = false; 1043 1044 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1045 "Measuring " + host + " in display " + desiredWindowWidth 1046 + "x" + desiredWindowHeight + "..."); 1047 1048 boolean goodMeasure = false; 1049 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1050 // On large screens, we don't want to allow dialogs to just 1051 // stretch to fill the entire width of the screen to display 1052 // one line of text. First try doing the layout at a smaller 1053 // size to see if it will fit. 1054 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1055 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1056 int baseSize = 0; 1057 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1058 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1059 } 1060 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1061 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1062 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1063 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1064 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1065 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1066 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1067 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1068 goodMeasure = true; 1069 } else { 1070 // Didn't fit in that size... try expanding a bit. 1071 baseSize = (baseSize+desiredWindowWidth)/2; 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1073 + baseSize); 1074 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1080 goodMeasure = true; 1081 } 1082 } 1083 } 1084 } 1085 1086 if (!goodMeasure) { 1087 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1088 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1089 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1090 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1091 windowSizeMayChange = true; 1092 } 1093 } 1094 1095 if (DBG) { 1096 System.out.println("======================================"); 1097 System.out.println("performTraversals -- after measure"); 1098 host.debug(); 1099 } 1100 1101 return windowSizeMayChange; 1102 } 1103 1104 private void performTraversals() { 1105 // cache mView since it is used so much below... 1106 final View host = mView; 1107 1108 if (DBG) { 1109 System.out.println("======================================"); 1110 System.out.println("performTraversals"); 1111 host.debug(); 1112 } 1113 1114 if (host == null || !mAdded) 1115 return; 1116 1117 mIsInTraversal = true; 1118 mWillDrawSoon = true; 1119 boolean windowSizeMayChange = false; 1120 boolean newSurface = false; 1121 boolean surfaceChanged = false; 1122 WindowManager.LayoutParams lp = mWindowAttributes; 1123 1124 int desiredWindowWidth; 1125 int desiredWindowHeight; 1126 1127 final View.AttachInfo attachInfo = mAttachInfo; 1128 1129 final int viewVisibility = getHostVisibility(); 1130 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1131 || mNewSurfaceNeeded; 1132 1133 WindowManager.LayoutParams params = null; 1134 if (mWindowAttributesChanged) { 1135 mWindowAttributesChanged = false; 1136 surfaceChanged = true; 1137 params = lp; 1138 } 1139 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1140 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1141 params = lp; 1142 mFullRedrawNeeded = true; 1143 mLayoutRequested = true; 1144 if (mLastInCompatMode) { 1145 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1146 mLastInCompatMode = false; 1147 } else { 1148 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1149 mLastInCompatMode = true; 1150 } 1151 } 1152 1153 mWindowAttributesChangesFlag = 0; 1154 1155 Rect frame = mWinFrame; 1156 if (mFirst) { 1157 mFullRedrawNeeded = true; 1158 mLayoutRequested = true; 1159 1160 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1161 // NOTE -- system code, won't try to do compat mode. 1162 Point size = new Point(); 1163 mDisplay.getRealSize(size); 1164 desiredWindowWidth = size.x; 1165 desiredWindowHeight = size.y; 1166 } else { 1167 DisplayMetrics packageMetrics = 1168 mView.getContext().getResources().getDisplayMetrics(); 1169 desiredWindowWidth = packageMetrics.widthPixels; 1170 desiredWindowHeight = packageMetrics.heightPixels; 1171 } 1172 1173 // For the very first time, tell the view hierarchy that it 1174 // is attached to the window. Note that at this point the surface 1175 // object is not initialized to its backing store, but soon it 1176 // will be (assuming the window is visible). 1177 attachInfo.mSurface = mSurface; 1178 // We used to use the following condition to choose 32 bits drawing caches: 1179 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1180 // However, windows are now always 32 bits by default, so choose 32 bits 1181 attachInfo.mUse32BitDrawingCache = true; 1182 attachInfo.mHasWindowFocus = false; 1183 attachInfo.mWindowVisibility = viewVisibility; 1184 attachInfo.mRecomputeGlobalAttributes = false; 1185 viewVisibilityChanged = false; 1186 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1187 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1188 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1189 host.dispatchAttachedToWindow(attachInfo, 0); 1190 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1191 host.fitSystemWindows(mFitSystemWindowsInsets); 1192 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1193 1194 } else { 1195 desiredWindowWidth = frame.width(); 1196 desiredWindowHeight = frame.height(); 1197 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1198 if (DEBUG_ORIENTATION) Log.v(TAG, 1199 "View " + host + " resized to: " + frame); 1200 mFullRedrawNeeded = true; 1201 mLayoutRequested = true; 1202 windowSizeMayChange = true; 1203 } 1204 } 1205 1206 if (viewVisibilityChanged) { 1207 attachInfo.mWindowVisibility = viewVisibility; 1208 host.dispatchWindowVisibilityChanged(viewVisibility); 1209 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1210 destroyHardwareResources(); 1211 } 1212 if (viewVisibility == View.GONE) { 1213 // After making a window gone, we will count it as being 1214 // shown for the first time the next time it gets focus. 1215 mHasHadWindowFocus = false; 1216 } 1217 } 1218 1219 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1220 getRunQueue().executeActions(attachInfo.mHandler); 1221 1222 boolean insetsChanged = false; 1223 1224 boolean layoutRequested = mLayoutRequested && !mStopped; 1225 if (layoutRequested) { 1226 1227 final Resources res = mView.getContext().getResources(); 1228 1229 if (mFirst) { 1230 // make sure touch mode code executes by setting cached value 1231 // to opposite of the added touch mode. 1232 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1233 ensureTouchModeLocally(mAddedTouchMode); 1234 } else { 1235 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1236 insetsChanged = true; 1237 } 1238 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1239 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1240 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1241 + mAttachInfo.mVisibleInsets); 1242 } 1243 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1244 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1245 windowSizeMayChange = true; 1246 1247 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1248 // NOTE -- system code, won't try to do compat mode. 1249 Point size = new Point(); 1250 mDisplay.getRealSize(size); 1251 desiredWindowWidth = size.x; 1252 desiredWindowHeight = size.y; 1253 } else { 1254 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1255 desiredWindowWidth = packageMetrics.widthPixels; 1256 desiredWindowHeight = packageMetrics.heightPixels; 1257 } 1258 } 1259 } 1260 1261 // Ask host how big it wants to be 1262 windowSizeMayChange |= measureHierarchy(host, lp, res, 1263 desiredWindowWidth, desiredWindowHeight); 1264 } 1265 1266 if (collectViewAttributes()) { 1267 params = lp; 1268 } 1269 if (attachInfo.mForceReportNewAttributes) { 1270 attachInfo.mForceReportNewAttributes = false; 1271 params = lp; 1272 } 1273 1274 if (mFirst || attachInfo.mViewVisibilityChanged) { 1275 attachInfo.mViewVisibilityChanged = false; 1276 int resizeMode = mSoftInputMode & 1277 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1278 // If we are in auto resize mode, then we need to determine 1279 // what mode to use now. 1280 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1281 final int N = attachInfo.mScrollContainers.size(); 1282 for (int i=0; i<N; i++) { 1283 if (attachInfo.mScrollContainers.get(i).isShown()) { 1284 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1285 } 1286 } 1287 if (resizeMode == 0) { 1288 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1289 } 1290 if ((lp.softInputMode & 1291 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1292 lp.softInputMode = (lp.softInputMode & 1293 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1294 resizeMode; 1295 params = lp; 1296 } 1297 } 1298 } 1299 1300 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1301 if (!PixelFormat.formatHasAlpha(params.format)) { 1302 params.format = PixelFormat.TRANSLUCENT; 1303 } 1304 } 1305 1306 if (mFitSystemWindowsRequested) { 1307 mFitSystemWindowsRequested = false; 1308 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1309 host.fitSystemWindows(mFitSystemWindowsInsets); 1310 if (mLayoutRequested) { 1311 // Short-circuit catching a new layout request here, so 1312 // we don't need to go through two layout passes when things 1313 // change due to fitting system windows, which can happen a lot. 1314 windowSizeMayChange |= measureHierarchy(host, lp, 1315 mView.getContext().getResources(), 1316 desiredWindowWidth, desiredWindowHeight); 1317 } 1318 } 1319 1320 if (layoutRequested) { 1321 // Clear this now, so that if anything requests a layout in the 1322 // rest of this function we will catch it and re-run a full 1323 // layout pass. 1324 mLayoutRequested = false; 1325 } 1326 1327 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1328 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1329 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1330 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1331 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1332 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1333 1334 final boolean computesInternalInsets = 1335 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1336 1337 boolean insetsPending = false; 1338 int relayoutResult = 0; 1339 1340 if (mFirst || windowShouldResize || insetsChanged || 1341 viewVisibilityChanged || params != null) { 1342 1343 if (viewVisibility == View.VISIBLE) { 1344 // If this window is giving internal insets to the window 1345 // manager, and it is being added or changing its visibility, 1346 // then we want to first give the window manager "fake" 1347 // insets to cause it to effectively ignore the content of 1348 // the window during layout. This avoids it briefly causing 1349 // other windows to resize/move based on the raw frame of the 1350 // window, waiting until we can finish laying out this window 1351 // and get back to the window manager with the ultimately 1352 // computed insets. 1353 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1354 } 1355 1356 if (mSurfaceHolder != null) { 1357 mSurfaceHolder.mSurfaceLock.lock(); 1358 mDrawingAllowed = true; 1359 } 1360 1361 boolean hwInitialized = false; 1362 boolean contentInsetsChanged = false; 1363 boolean visibleInsetsChanged; 1364 boolean hadSurface = mSurface.isValid(); 1365 1366 try { 1367 if (DEBUG_LAYOUT) { 1368 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1369 host.getMeasuredHeight() + ", params=" + params); 1370 } 1371 1372 final int surfaceGenerationId = mSurface.getGenerationId(); 1373 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1374 1375 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1376 + " content=" + mPendingContentInsets.toShortString() 1377 + " visible=" + mPendingVisibleInsets.toShortString() 1378 + " surface=" + mSurface); 1379 1380 if (mPendingConfiguration.seq != 0) { 1381 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1382 + mPendingConfiguration); 1383 updateConfiguration(mPendingConfiguration, !mFirst); 1384 mPendingConfiguration.seq = 0; 1385 } 1386 1387 contentInsetsChanged = !mPendingContentInsets.equals( 1388 mAttachInfo.mContentInsets); 1389 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1390 mAttachInfo.mVisibleInsets); 1391 if (contentInsetsChanged) { 1392 if (mWidth > 0 && mHeight > 0 && lp != null && 1393 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1394 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1395 mSurface != null && mSurface.isValid() && 1396 !mAttachInfo.mTurnOffWindowResizeAnim && 1397 mAttachInfo.mHardwareRenderer != null && 1398 mAttachInfo.mHardwareRenderer.isEnabled() && 1399 mAttachInfo.mHardwareRenderer.validate() && 1400 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1401 1402 disposeResizeBuffer(); 1403 1404 boolean completed = false; 1405 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1406 HardwareCanvas layerCanvas = null; 1407 try { 1408 if (mResizeBuffer == null) { 1409 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1410 mWidth, mHeight, false); 1411 } else if (mResizeBuffer.getWidth() != mWidth || 1412 mResizeBuffer.getHeight() != mHeight) { 1413 mResizeBuffer.resize(mWidth, mHeight); 1414 } 1415 // TODO: should handle create/resize failure 1416 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1417 layerCanvas.setViewport(mWidth, mHeight); 1418 layerCanvas.onPreDraw(null); 1419 final int restoreCount = layerCanvas.save(); 1420 1421 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1422 1423 int yoff; 1424 final boolean scrolling = mScroller != null 1425 && mScroller.computeScrollOffset(); 1426 if (scrolling) { 1427 yoff = mScroller.getCurrY(); 1428 mScroller.abortAnimation(); 1429 } else { 1430 yoff = mScrollY; 1431 } 1432 1433 layerCanvas.translate(0, -yoff); 1434 if (mTranslator != null) { 1435 mTranslator.translateCanvas(layerCanvas); 1436 } 1437 1438 mView.draw(layerCanvas); 1439 1440 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1441 1442 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1443 mResizeBufferDuration = mView.getResources().getInteger( 1444 com.android.internal.R.integer.config_mediumAnimTime); 1445 completed = true; 1446 1447 layerCanvas.restoreToCount(restoreCount); 1448 } catch (OutOfMemoryError e) { 1449 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1450 } finally { 1451 if (layerCanvas != null) { 1452 layerCanvas.onPostDraw(); 1453 } 1454 if (mResizeBuffer != null) { 1455 mResizeBuffer.end(hwRendererCanvas); 1456 if (!completed) { 1457 mResizeBuffer.destroy(); 1458 mResizeBuffer = null; 1459 } 1460 } 1461 } 1462 } 1463 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1464 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1465 + mAttachInfo.mContentInsets); 1466 } 1467 if (contentInsetsChanged || mLastSystemUiVisibility != 1468 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1469 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1470 mFitSystemWindowsRequested = false; 1471 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1472 host.fitSystemWindows(mFitSystemWindowsInsets); 1473 } 1474 if (visibleInsetsChanged) { 1475 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1476 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1477 + mAttachInfo.mVisibleInsets); 1478 } 1479 1480 if (!hadSurface) { 1481 if (mSurface.isValid()) { 1482 // If we are creating a new surface, then we need to 1483 // completely redraw it. Also, when we get to the 1484 // point of drawing it we will hold off and schedule 1485 // a new traversal instead. This is so we can tell the 1486 // window manager about all of the windows being displayed 1487 // before actually drawing them, so it can display then 1488 // all at once. 1489 newSurface = true; 1490 mFullRedrawNeeded = true; 1491 mPreviousTransparentRegion.setEmpty(); 1492 1493 if (mAttachInfo.mHardwareRenderer != null) { 1494 try { 1495 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1496 mHolder.getSurface()); 1497 } catch (Surface.OutOfResourcesException e) { 1498 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1499 try { 1500 if (!mWindowSession.outOfMemory(mWindow) && 1501 Process.myUid() != Process.SYSTEM_UID) { 1502 Slog.w(TAG, "No processes killed for memory; killing self"); 1503 Process.killProcess(Process.myPid()); 1504 } 1505 } catch (RemoteException ex) { 1506 } 1507 mLayoutRequested = true; // ask wm for a new surface next time. 1508 return; 1509 } 1510 } 1511 } 1512 } else if (!mSurface.isValid()) { 1513 // If the surface has been removed, then reset the scroll 1514 // positions. 1515 mLastScrolledFocus = null; 1516 mScrollY = mCurScrollY = 0; 1517 if (mScroller != null) { 1518 mScroller.abortAnimation(); 1519 } 1520 disposeResizeBuffer(); 1521 // Our surface is gone 1522 if (mAttachInfo.mHardwareRenderer != null && 1523 mAttachInfo.mHardwareRenderer.isEnabled()) { 1524 mAttachInfo.mHardwareRenderer.destroy(true); 1525 } 1526 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1527 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1528 mFullRedrawNeeded = true; 1529 try { 1530 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1531 } catch (Surface.OutOfResourcesException e) { 1532 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1533 try { 1534 if (!mWindowSession.outOfMemory(mWindow)) { 1535 Slog.w(TAG, "No processes killed for memory; killing self"); 1536 Process.killProcess(Process.myPid()); 1537 } 1538 } catch (RemoteException ex) { 1539 } 1540 mLayoutRequested = true; // ask wm for a new surface next time. 1541 return; 1542 } 1543 } 1544 } catch (RemoteException e) { 1545 } 1546 1547 if (DEBUG_ORIENTATION) Log.v( 1548 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1549 1550 attachInfo.mWindowLeft = frame.left; 1551 attachInfo.mWindowTop = frame.top; 1552 1553 // !!FIXME!! This next section handles the case where we did not get the 1554 // window size we asked for. We should avoid this by getting a maximum size from 1555 // the window session beforehand. 1556 if (mWidth != frame.width() || mHeight != frame.height()) { 1557 mWidth = frame.width(); 1558 mHeight = frame.height(); 1559 } 1560 1561 if (mSurfaceHolder != null) { 1562 // The app owns the surface; tell it about what is going on. 1563 if (mSurface.isValid()) { 1564 // XXX .copyFrom() doesn't work! 1565 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1566 mSurfaceHolder.mSurface = mSurface; 1567 } 1568 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1569 mSurfaceHolder.mSurfaceLock.unlock(); 1570 if (mSurface.isValid()) { 1571 if (!hadSurface) { 1572 mSurfaceHolder.ungetCallbacks(); 1573 1574 mIsCreating = true; 1575 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1576 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1577 if (callbacks != null) { 1578 for (SurfaceHolder.Callback c : callbacks) { 1579 c.surfaceCreated(mSurfaceHolder); 1580 } 1581 } 1582 surfaceChanged = true; 1583 } 1584 if (surfaceChanged) { 1585 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1586 lp.format, mWidth, mHeight); 1587 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1588 if (callbacks != null) { 1589 for (SurfaceHolder.Callback c : callbacks) { 1590 c.surfaceChanged(mSurfaceHolder, lp.format, 1591 mWidth, mHeight); 1592 } 1593 } 1594 } 1595 mIsCreating = false; 1596 } else if (hadSurface) { 1597 mSurfaceHolder.ungetCallbacks(); 1598 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1599 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1600 if (callbacks != null) { 1601 for (SurfaceHolder.Callback c : callbacks) { 1602 c.surfaceDestroyed(mSurfaceHolder); 1603 } 1604 } 1605 mSurfaceHolder.mSurfaceLock.lock(); 1606 try { 1607 mSurfaceHolder.mSurface = new Surface(); 1608 } finally { 1609 mSurfaceHolder.mSurfaceLock.unlock(); 1610 } 1611 } 1612 } 1613 1614 if (mAttachInfo.mHardwareRenderer != null && 1615 mAttachInfo.mHardwareRenderer.isEnabled()) { 1616 if (hwInitialized || windowShouldResize || 1617 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1618 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1619 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1620 if (!hwInitialized) { 1621 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1622 mFullRedrawNeeded = true; 1623 } 1624 } 1625 } 1626 1627 if (!mStopped) { 1628 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1629 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1630 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1631 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1632 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1633 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1634 1635 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1636 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1637 + " mHeight=" + mHeight 1638 + " measuredHeight=" + host.getMeasuredHeight() 1639 + " coveredInsetsChanged=" + contentInsetsChanged); 1640 1641 // Ask host how big it wants to be 1642 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1643 1644 // Implementation of weights from WindowManager.LayoutParams 1645 // We just grow the dimensions as needed and re-measure if 1646 // needs be 1647 int width = host.getMeasuredWidth(); 1648 int height = host.getMeasuredHeight(); 1649 boolean measureAgain = false; 1650 1651 if (lp.horizontalWeight > 0.0f) { 1652 width += (int) ((mWidth - width) * lp.horizontalWeight); 1653 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1654 MeasureSpec.EXACTLY); 1655 measureAgain = true; 1656 } 1657 if (lp.verticalWeight > 0.0f) { 1658 height += (int) ((mHeight - height) * lp.verticalWeight); 1659 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1660 MeasureSpec.EXACTLY); 1661 measureAgain = true; 1662 } 1663 1664 if (measureAgain) { 1665 if (DEBUG_LAYOUT) Log.v(TAG, 1666 "And hey let's measure once more: width=" + width 1667 + " height=" + height); 1668 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1669 } 1670 1671 layoutRequested = true; 1672 } 1673 } 1674 } else { 1675 // Not the first pass and no window/insets/visibility change but the window 1676 // may have moved and we need check that and if so to update the left and right 1677 // in the attach info. We translate only the window frame since on window move 1678 // the window manager tells us only for the new frame but the insets are the 1679 // same and we do not want to translate them more than once. 1680 1681 // TODO: Well, we are checking whether the frame has changed similarly 1682 // to how this is done for the insets. This is however incorrect since 1683 // the insets and the frame are translated. For example, the old frame 1684 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1685 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1686 // true since we are comparing a not translated value to a translated one. 1687 // This scenario is rare but we may want to fix that. 1688 1689 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1690 || attachInfo.mWindowTop != frame.top); 1691 if (windowMoved) { 1692 if (mTranslator != null) { 1693 mTranslator.translateRectInScreenToAppWinFrame(frame); 1694 } 1695 attachInfo.mWindowLeft = frame.left; 1696 attachInfo.mWindowTop = frame.top; 1697 } 1698 } 1699 1700 final boolean didLayout = layoutRequested && !mStopped; 1701 boolean triggerGlobalLayoutListener = didLayout 1702 || attachInfo.mRecomputeGlobalAttributes; 1703 if (didLayout) { 1704 performLayout(); 1705 1706 // By this point all views have been sized and positionned 1707 // We can compute the transparent area 1708 1709 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1710 // start out transparent 1711 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1712 host.getLocationInWindow(mTmpLocation); 1713 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1714 mTmpLocation[0] + host.mRight - host.mLeft, 1715 mTmpLocation[1] + host.mBottom - host.mTop); 1716 1717 host.gatherTransparentRegion(mTransparentRegion); 1718 if (mTranslator != null) { 1719 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1720 } 1721 1722 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1723 mPreviousTransparentRegion.set(mTransparentRegion); 1724 // reconfigure window manager 1725 try { 1726 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1727 } catch (RemoteException e) { 1728 } 1729 } 1730 } 1731 1732 if (DBG) { 1733 System.out.println("======================================"); 1734 System.out.println("performTraversals -- after setFrame"); 1735 host.debug(); 1736 } 1737 } 1738 1739 if (triggerGlobalLayoutListener) { 1740 attachInfo.mRecomputeGlobalAttributes = false; 1741 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1742 1743 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1744 postSendWindowContentChangedCallback(mView); 1745 } 1746 } 1747 1748 if (computesInternalInsets) { 1749 // Clear the original insets. 1750 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1751 insets.reset(); 1752 1753 // Compute new insets in place. 1754 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1755 1756 // Tell the window manager. 1757 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1758 mLastGivenInsets.set(insets); 1759 1760 // Translate insets to screen coordinates if needed. 1761 final Rect contentInsets; 1762 final Rect visibleInsets; 1763 final Region touchableRegion; 1764 if (mTranslator != null) { 1765 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1766 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1767 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1768 } else { 1769 contentInsets = insets.contentInsets; 1770 visibleInsets = insets.visibleInsets; 1771 touchableRegion = insets.touchableRegion; 1772 } 1773 1774 try { 1775 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1776 contentInsets, visibleInsets, touchableRegion); 1777 } catch (RemoteException e) { 1778 } 1779 } 1780 } 1781 1782 boolean skipDraw = false; 1783 1784 if (mFirst) { 1785 // handle first focus request 1786 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1787 + mView.hasFocus()); 1788 if (mView != null) { 1789 if (!mView.hasFocus()) { 1790 mView.requestFocus(View.FOCUS_FORWARD); 1791 mFocusedView = mRealFocusedView = mView.findFocus(); 1792 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1793 + mFocusedView); 1794 } else { 1795 mRealFocusedView = mView.findFocus(); 1796 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1797 + mRealFocusedView); 1798 } 1799 } 1800 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1801 // The first time we relayout the window, if the system is 1802 // doing window animations, we want to hold of on any future 1803 // draws until the animation is done. 1804 mWindowsAnimating = true; 1805 } 1806 } else if (mWindowsAnimating) { 1807 skipDraw = true; 1808 } 1809 1810 mFirst = false; 1811 mWillDrawSoon = false; 1812 mNewSurfaceNeeded = false; 1813 mViewVisibility = viewVisibility; 1814 1815 if (mAttachInfo.mHasWindowFocus) { 1816 final boolean imTarget = WindowManager.LayoutParams 1817 .mayUseInputMethod(mWindowAttributes.flags); 1818 if (imTarget != mLastWasImTarget) { 1819 mLastWasImTarget = imTarget; 1820 InputMethodManager imm = InputMethodManager.peekInstance(); 1821 if (imm != null && imTarget) { 1822 imm.startGettingWindowFocus(mView); 1823 imm.onWindowFocus(mView, mView.findFocus(), 1824 mWindowAttributes.softInputMode, 1825 !mHasHadWindowFocus, mWindowAttributes.flags); 1826 } 1827 } 1828 } 1829 1830 // Remember if we must report the next draw. 1831 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1832 mReportNextDraw = true; 1833 } 1834 1835 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1836 viewVisibility != View.VISIBLE; 1837 1838 if (!cancelDraw && !newSurface) { 1839 if (!skipDraw || mReportNextDraw) { 1840 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1841 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1842 mPendingTransitions.get(i).startChangingAnimations(); 1843 } 1844 mPendingTransitions.clear(); 1845 } 1846 1847 performDraw(); 1848 } 1849 } else { 1850 if (viewVisibility == View.VISIBLE) { 1851 // Try again 1852 scheduleTraversals(); 1853 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1854 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1855 mPendingTransitions.get(i).endChangingAnimations(); 1856 } 1857 mPendingTransitions.clear(); 1858 } 1859 } 1860 1861 mIsInTraversal = false; 1862 } 1863 1864 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1865 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1866 try { 1867 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1868 } finally { 1869 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1870 } 1871 } 1872 1873 private void performLayout() { 1874 mLayoutRequested = false; 1875 mScrollMayChange = true; 1876 1877 final View host = mView; 1878 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1879 Log.v(TAG, "Laying out " + host + " to (" + 1880 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1881 } 1882 1883 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1884 try { 1885 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1886 } finally { 1887 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1888 } 1889 } 1890 1891 public void requestTransparentRegion(View child) { 1892 // the test below should not fail unless someone is messing with us 1893 checkThread(); 1894 if (mView == child) { 1895 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1896 // Need to make sure we re-evaluate the window attributes next 1897 // time around, to ensure the window has the correct format. 1898 mWindowAttributesChanged = true; 1899 mWindowAttributesChangesFlag = 0; 1900 requestLayout(); 1901 } 1902 } 1903 1904 /** 1905 * Figures out the measure spec for the root view in a window based on it's 1906 * layout params. 1907 * 1908 * @param windowSize 1909 * The available width or height of the window 1910 * 1911 * @param rootDimension 1912 * The layout params for one dimension (width or height) of the 1913 * window. 1914 * 1915 * @return The measure spec to use to measure the root view. 1916 */ 1917 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1918 int measureSpec; 1919 switch (rootDimension) { 1920 1921 case ViewGroup.LayoutParams.MATCH_PARENT: 1922 // Window can't resize. Force root view to be windowSize. 1923 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1924 break; 1925 case ViewGroup.LayoutParams.WRAP_CONTENT: 1926 // Window can resize. Set max size for root view. 1927 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1928 break; 1929 default: 1930 // Window wants to be an exact size. Force root view to be that size. 1931 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1932 break; 1933 } 1934 return measureSpec; 1935 } 1936 1937 int mHardwareYOffset; 1938 int mResizeAlpha; 1939 final Paint mResizePaint = new Paint(); 1940 1941 public void onHardwarePreDraw(HardwareCanvas canvas) { 1942 canvas.translate(0, -mHardwareYOffset); 1943 } 1944 1945 public void onHardwarePostDraw(HardwareCanvas canvas) { 1946 if (mResizeBuffer != null) { 1947 mResizePaint.setAlpha(mResizeAlpha); 1948 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1949 } 1950 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1951 } 1952 1953 /** 1954 * @hide 1955 */ 1956 void outputDisplayList(View view) { 1957 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1958 DisplayList displayList = view.getDisplayList(); 1959 if (displayList != null) { 1960 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1961 } 1962 } 1963 } 1964 1965 /** 1966 * @see #PROPERTY_PROFILE_RENDERING 1967 */ 1968 private void profileRendering(boolean enabled) { 1969 if (mProfileRendering) { 1970 mRenderProfilingEnabled = enabled; 1971 if (mRenderProfiler == null) { 1972 mRenderProfiler = new Thread(new Runnable() { 1973 @Override 1974 public void run() { 1975 Log.d(TAG, "Starting profiling thread"); 1976 while (mRenderProfilingEnabled) { 1977 mAttachInfo.mHandler.post(new Runnable() { 1978 @Override 1979 public void run() { 1980 mDirty.set(0, 0, mWidth, mHeight); 1981 scheduleTraversals(); 1982 } 1983 }); 1984 try { 1985 // TODO: This should use vsync when we get an API 1986 Thread.sleep(15); 1987 } catch (InterruptedException e) { 1988 Log.d(TAG, "Exiting profiling thread"); 1989 } 1990 } 1991 } 1992 }, "Rendering Profiler"); 1993 mRenderProfiler.start(); 1994 } else { 1995 mRenderProfiler.interrupt(); 1996 mRenderProfiler = null; 1997 } 1998 } 1999 } 2000 2001 /** 2002 * Called from draw() when DEBUG_FPS is enabled 2003 */ 2004 private void trackFPS() { 2005 // Tracks frames per second drawn. First value in a series of draws may be bogus 2006 // because it down not account for the intervening idle time 2007 long nowTime = System.currentTimeMillis(); 2008 if (mFpsStartTime < 0) { 2009 mFpsStartTime = mFpsPrevTime = nowTime; 2010 mFpsNumFrames = 0; 2011 } else { 2012 ++mFpsNumFrames; 2013 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2014 long frameTime = nowTime - mFpsPrevTime; 2015 long totalTime = nowTime - mFpsStartTime; 2016 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2017 mFpsPrevTime = nowTime; 2018 if (totalTime > 1000) { 2019 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2020 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2021 mFpsStartTime = nowTime; 2022 mFpsNumFrames = 0; 2023 } 2024 } 2025 } 2026 2027 private void performDraw() { 2028 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2029 return; 2030 } 2031 2032 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2033 mFullRedrawNeeded = false; 2034 2035 mIsDrawing = true; 2036 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2037 try { 2038 draw(fullRedrawNeeded); 2039 } finally { 2040 mIsDrawing = false; 2041 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2042 } 2043 2044 if (mReportNextDraw) { 2045 mReportNextDraw = false; 2046 2047 if (LOCAL_LOGV) { 2048 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2049 } 2050 if (mSurfaceHolder != null && mSurface.isValid()) { 2051 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2052 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2053 if (callbacks != null) { 2054 for (SurfaceHolder.Callback c : callbacks) { 2055 if (c instanceof SurfaceHolder.Callback2) { 2056 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2057 mSurfaceHolder); 2058 } 2059 } 2060 } 2061 } 2062 try { 2063 mWindowSession.finishDrawing(mWindow); 2064 } catch (RemoteException e) { 2065 } 2066 } 2067 } 2068 2069 private void draw(boolean fullRedrawNeeded) { 2070 Surface surface = mSurface; 2071 if (surface == null || !surface.isValid()) { 2072 return; 2073 } 2074 2075 if (DEBUG_FPS) { 2076 trackFPS(); 2077 } 2078 2079 if (!sFirstDrawComplete) { 2080 synchronized (sFirstDrawHandlers) { 2081 sFirstDrawComplete = true; 2082 final int count = sFirstDrawHandlers.size(); 2083 for (int i = 0; i< count; i++) { 2084 mHandler.post(sFirstDrawHandlers.get(i)); 2085 } 2086 } 2087 } 2088 2089 scrollToRectOrFocus(null, false); 2090 2091 final AttachInfo attachInfo = mAttachInfo; 2092 if (attachInfo.mViewScrollChanged) { 2093 attachInfo.mViewScrollChanged = false; 2094 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2095 } 2096 2097 int yoff; 2098 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2099 if (animating) { 2100 yoff = mScroller.getCurrY(); 2101 } else { 2102 yoff = mScrollY; 2103 } 2104 if (mCurScrollY != yoff) { 2105 mCurScrollY = yoff; 2106 fullRedrawNeeded = true; 2107 } 2108 2109 final float appScale = attachInfo.mApplicationScale; 2110 final boolean scalingRequired = attachInfo.mScalingRequired; 2111 2112 int resizeAlpha = 0; 2113 if (mResizeBuffer != null) { 2114 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2115 if (deltaTime < mResizeBufferDuration) { 2116 float amt = deltaTime/(float) mResizeBufferDuration; 2117 amt = mResizeInterpolator.getInterpolation(amt); 2118 animating = true; 2119 resizeAlpha = 255 - (int)(amt*255); 2120 } else { 2121 disposeResizeBuffer(); 2122 } 2123 } 2124 2125 final Rect dirty = mDirty; 2126 if (mSurfaceHolder != null) { 2127 // The app owns the surface, we won't draw. 2128 dirty.setEmpty(); 2129 if (animating) { 2130 if (mScroller != null) { 2131 mScroller.abortAnimation(); 2132 } 2133 disposeResizeBuffer(); 2134 } 2135 return; 2136 } 2137 2138 if (fullRedrawNeeded) { 2139 attachInfo.mIgnoreDirtyState = true; 2140 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2141 } 2142 2143 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2144 Log.v(TAG, "Draw " + mView + "/" 2145 + mWindowAttributes.getTitle() 2146 + ": dirty={" + dirty.left + "," + dirty.top 2147 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2148 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2149 appScale + ", width=" + mWidth + ", height=" + mHeight); 2150 } 2151 2152 attachInfo.mTreeObserver.dispatchOnDraw(); 2153 2154 if (!dirty.isEmpty() || mIsAnimating) { 2155 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2156 // Draw with hardware renderer. 2157 mIsAnimating = false; 2158 mHardwareYOffset = yoff; 2159 mResizeAlpha = resizeAlpha; 2160 2161 mCurrentDirty.set(dirty); 2162 mCurrentDirty.union(mPreviousDirty); 2163 mPreviousDirty.set(dirty); 2164 dirty.setEmpty(); 2165 2166 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2167 animating ? null : mCurrentDirty)) { 2168 mPreviousDirty.set(0, 0, mWidth, mHeight); 2169 } 2170 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2171 return; 2172 } 2173 } 2174 2175 if (animating) { 2176 mFullRedrawNeeded = true; 2177 scheduleTraversals(); 2178 } 2179 } 2180 2181 /** 2182 * @return true if drawing was succesfull, false if an error occurred 2183 */ 2184 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2185 boolean scalingRequired, Rect dirty) { 2186 2187 // If we get here with a disabled & requested hardware renderer, something went 2188 // wrong (an invalidate posted right before we destroyed the hardware surface 2189 // for instance) so we should just bail out. Locking the surface with software 2190 // rendering at this point would lock it forever and prevent hardware renderer 2191 // from doing its job when it comes back. 2192 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2193 attachInfo.mHardwareRenderer.isRequested()) { 2194 mFullRedrawNeeded = true; 2195 scheduleTraversals(); 2196 return false; 2197 } 2198 2199 // Draw with software renderer. 2200 Canvas canvas; 2201 try { 2202 int left = dirty.left; 2203 int top = dirty.top; 2204 int right = dirty.right; 2205 int bottom = dirty.bottom; 2206 2207 canvas = mSurface.lockCanvas(dirty); 2208 2209 if (left != dirty.left || top != dirty.top || right != dirty.right || 2210 bottom != dirty.bottom) { 2211 attachInfo.mIgnoreDirtyState = true; 2212 } 2213 2214 // TODO: Do this in native 2215 canvas.setDensity(mDensity); 2216 } catch (Surface.OutOfResourcesException e) { 2217 Log.e(TAG, "OutOfResourcesException locking surface", e); 2218 try { 2219 if (!mWindowSession.outOfMemory(mWindow)) { 2220 Slog.w(TAG, "No processes killed for memory; killing self"); 2221 Process.killProcess(Process.myPid()); 2222 } 2223 } catch (RemoteException ex) { 2224 } 2225 mLayoutRequested = true; // ask wm for a new surface next time. 2226 return false; 2227 } catch (IllegalArgumentException e) { 2228 Log.e(TAG, "Could not lock surface", e); 2229 // Don't assume this is due to out of memory, it could be 2230 // something else, and if it is something else then we could 2231 // kill stuff (or ourself) for no reason. 2232 mLayoutRequested = true; // ask wm for a new surface next time. 2233 return false; 2234 } 2235 2236 try { 2237 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2238 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2239 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2240 //canvas.drawARGB(255, 255, 0, 0); 2241 } 2242 2243 // If this bitmap's format includes an alpha channel, we 2244 // need to clear it before drawing so that the child will 2245 // properly re-composite its drawing on a transparent 2246 // background. This automatically respects the clip/dirty region 2247 // or 2248 // If we are applying an offset, we need to clear the area 2249 // where the offset doesn't appear to avoid having garbage 2250 // left in the blank areas. 2251 if (!canvas.isOpaque() || yoff != 0) { 2252 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2253 } 2254 2255 dirty.setEmpty(); 2256 mIsAnimating = false; 2257 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2258 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2259 2260 if (DEBUG_DRAW) { 2261 Context cxt = mView.getContext(); 2262 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2263 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2264 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2265 } 2266 try { 2267 canvas.translate(0, -yoff); 2268 if (mTranslator != null) { 2269 mTranslator.translateCanvas(canvas); 2270 } 2271 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2272 attachInfo.mSetIgnoreDirtyState = false; 2273 2274 mView.draw(canvas); 2275 2276 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2277 } finally { 2278 if (!attachInfo.mSetIgnoreDirtyState) { 2279 // Only clear the flag if it was not set during the mView.draw() call 2280 attachInfo.mIgnoreDirtyState = false; 2281 } 2282 } 2283 } finally { 2284 try { 2285 surface.unlockCanvasAndPost(canvas); 2286 } catch (IllegalArgumentException e) { 2287 Log.e(TAG, "Could not unlock surface", e); 2288 mLayoutRequested = true; // ask wm for a new surface next time. 2289 //noinspection ReturnInsideFinallyBlock 2290 return false; 2291 } 2292 2293 if (LOCAL_LOGV) { 2294 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2295 } 2296 } 2297 return true; 2298 } 2299 2300 /** 2301 * We want to draw a highlight around the current accessibility focused. 2302 * Since adding a style for all possible view is not a viable option we 2303 * have this specialized drawing method. 2304 * 2305 * Note: We are doing this here to be able to draw the highlight for 2306 * virtual views in addition to real ones. 2307 * 2308 * @param canvas The canvas on which to draw. 2309 */ 2310 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2311 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2312 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2313 return; 2314 } 2315 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2316 return; 2317 } 2318 Drawable drawable = getAccessibilityFocusedDrawable(); 2319 if (drawable == null) { 2320 return; 2321 } 2322 AccessibilityNodeProvider provider = 2323 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2324 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2325 if (provider == null) { 2326 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2327 } else { 2328 if (mAccessibilityFocusedVirtualView == null) { 2329 return; 2330 } 2331 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2332 } 2333 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2334 drawable.setBounds(bounds); 2335 drawable.draw(canvas); 2336 } 2337 2338 private Drawable getAccessibilityFocusedDrawable() { 2339 if (mAttachInfo != null) { 2340 // Lazily load the accessibility focus drawable. 2341 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2342 TypedValue value = new TypedValue(); 2343 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2344 R.attr.accessibilityFocusedDrawable, value, true); 2345 if (resolved) { 2346 mAttachInfo.mAccessibilityFocusDrawable = 2347 mView.mContext.getResources().getDrawable(value.resourceId); 2348 } 2349 } 2350 return mAttachInfo.mAccessibilityFocusDrawable; 2351 } 2352 return null; 2353 } 2354 2355 void invalidateDisplayLists() { 2356 final ArrayList<DisplayList> displayLists = mDisplayLists; 2357 final int count = displayLists.size(); 2358 2359 for (int i = 0; i < count; i++) { 2360 final DisplayList displayList = displayLists.get(i); 2361 displayList.invalidate(); 2362 displayList.clear(); 2363 } 2364 2365 displayLists.clear(); 2366 } 2367 2368 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2369 final View.AttachInfo attachInfo = mAttachInfo; 2370 final Rect ci = attachInfo.mContentInsets; 2371 final Rect vi = attachInfo.mVisibleInsets; 2372 int scrollY = 0; 2373 boolean handled = false; 2374 2375 if (vi.left > ci.left || vi.top > ci.top 2376 || vi.right > ci.right || vi.bottom > ci.bottom) { 2377 // We'll assume that we aren't going to change the scroll 2378 // offset, since we want to avoid that unless it is actually 2379 // going to make the focus visible... otherwise we scroll 2380 // all over the place. 2381 scrollY = mScrollY; 2382 // We can be called for two different situations: during a draw, 2383 // to update the scroll position if the focus has changed (in which 2384 // case 'rectangle' is null), or in response to a 2385 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2386 // is non-null and we just want to scroll to whatever that 2387 // rectangle is). 2388 View focus = mRealFocusedView; 2389 2390 // When in touch mode, focus points to the previously focused view, 2391 // which may have been removed from the view hierarchy. The following 2392 // line checks whether the view is still in our hierarchy. 2393 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2394 mRealFocusedView = null; 2395 return false; 2396 } 2397 2398 if (focus != mLastScrolledFocus) { 2399 // If the focus has changed, then ignore any requests to scroll 2400 // to a rectangle; first we want to make sure the entire focus 2401 // view is visible. 2402 rectangle = null; 2403 } 2404 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2405 + " rectangle=" + rectangle + " ci=" + ci 2406 + " vi=" + vi); 2407 if (focus == mLastScrolledFocus && !mScrollMayChange 2408 && rectangle == null) { 2409 // Optimization: if the focus hasn't changed since last 2410 // time, and no layout has happened, then just leave things 2411 // as they are. 2412 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2413 + mScrollY + " vi=" + vi.toShortString()); 2414 } else if (focus != null) { 2415 // We need to determine if the currently focused view is 2416 // within the visible part of the window and, if not, apply 2417 // a pan so it can be seen. 2418 mLastScrolledFocus = focus; 2419 mScrollMayChange = false; 2420 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2421 // Try to find the rectangle from the focus view. 2422 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2423 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2424 + mView.getWidth() + " h=" + mView.getHeight() 2425 + " ci=" + ci.toShortString() 2426 + " vi=" + vi.toShortString()); 2427 if (rectangle == null) { 2428 focus.getFocusedRect(mTempRect); 2429 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2430 + ": focusRect=" + mTempRect.toShortString()); 2431 if (mView instanceof ViewGroup) { 2432 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2433 focus, mTempRect); 2434 } 2435 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2436 "Focus in window: focusRect=" 2437 + mTempRect.toShortString() 2438 + " visRect=" + mVisRect.toShortString()); 2439 } else { 2440 mTempRect.set(rectangle); 2441 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2442 "Request scroll to rect: " 2443 + mTempRect.toShortString() 2444 + " visRect=" + mVisRect.toShortString()); 2445 } 2446 if (mTempRect.intersect(mVisRect)) { 2447 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2448 "Focus window visible rect: " 2449 + mTempRect.toShortString()); 2450 if (mTempRect.height() > 2451 (mView.getHeight()-vi.top-vi.bottom)) { 2452 // If the focus simply is not going to fit, then 2453 // best is probably just to leave things as-is. 2454 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2455 "Too tall; leaving scrollY=" + scrollY); 2456 } else if ((mTempRect.top-scrollY) < vi.top) { 2457 scrollY -= vi.top - (mTempRect.top-scrollY); 2458 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2459 "Top covered; scrollY=" + scrollY); 2460 } else if ((mTempRect.bottom-scrollY) 2461 > (mView.getHeight()-vi.bottom)) { 2462 scrollY += (mTempRect.bottom-scrollY) 2463 - (mView.getHeight()-vi.bottom); 2464 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2465 "Bottom covered; scrollY=" + scrollY); 2466 } 2467 handled = true; 2468 } 2469 } 2470 } 2471 } 2472 2473 if (scrollY != mScrollY) { 2474 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2475 + mScrollY + " , new=" + scrollY); 2476 if (!immediate && mResizeBuffer == null) { 2477 if (mScroller == null) { 2478 mScroller = new Scroller(mView.getContext()); 2479 } 2480 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2481 } else if (mScroller != null) { 2482 mScroller.abortAnimation(); 2483 } 2484 mScrollY = scrollY; 2485 } 2486 2487 return handled; 2488 } 2489 2490 /** 2491 * @hide 2492 */ 2493 public View getAccessibilityFocusedHost() { 2494 return mAccessibilityFocusedHost; 2495 } 2496 2497 /** 2498 * @hide 2499 */ 2500 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2501 return mAccessibilityFocusedVirtualView; 2502 } 2503 2504 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2505 // If we have a virtual view with accessibility focus we need 2506 // to clear the focus and invalidate the virtual view bounds. 2507 if (mAccessibilityFocusedVirtualView != null) { 2508 2509 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2510 View focusHost = mAccessibilityFocusedHost; 2511 focusHost.clearAccessibilityFocusNoCallbacks(); 2512 2513 // Wipe the state of the current accessibility focus since 2514 // the call into the provider to clear accessibility focus 2515 // will fire an accessibility event which will end up calling 2516 // this method and we want to have clean state when this 2517 // invocation happens. 2518 mAccessibilityFocusedHost = null; 2519 mAccessibilityFocusedVirtualView = null; 2520 2521 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2522 if (provider != null) { 2523 // Invalidate the area of the cleared accessibility focus. 2524 focusNode.getBoundsInParent(mTempRect); 2525 focusHost.invalidate(mTempRect); 2526 // Clear accessibility focus in the virtual node. 2527 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2528 focusNode.getSourceNodeId()); 2529 provider.performAction(virtualNodeId, 2530 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2531 } 2532 focusNode.recycle(); 2533 } 2534 if (mAccessibilityFocusedHost != null) { 2535 // Clear accessibility focus in the view. 2536 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2537 } 2538 2539 // Set the new focus host and node. 2540 mAccessibilityFocusedHost = view; 2541 mAccessibilityFocusedVirtualView = node; 2542 } 2543 2544 public void requestChildFocus(View child, View focused) { 2545 checkThread(); 2546 2547 if (DEBUG_INPUT_RESIZE) { 2548 Log.v(TAG, "Request child focus: focus now " + focused); 2549 } 2550 2551 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2552 scheduleTraversals(); 2553 2554 mFocusedView = mRealFocusedView = focused; 2555 } 2556 2557 public void clearChildFocus(View child) { 2558 checkThread(); 2559 2560 if (DEBUG_INPUT_RESIZE) { 2561 Log.v(TAG, "Clearing child focus"); 2562 } 2563 2564 mOldFocusedView = mFocusedView; 2565 2566 // Invoke the listener only if there is no view to take focus 2567 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2568 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2569 } 2570 2571 mFocusedView = mRealFocusedView = null; 2572 } 2573 2574 @Override 2575 public ViewParent getParentForAccessibility() { 2576 return null; 2577 } 2578 2579 public void focusableViewAvailable(View v) { 2580 checkThread(); 2581 if (mView != null) { 2582 if (!mView.hasFocus()) { 2583 v.requestFocus(); 2584 } else { 2585 // the one case where will transfer focus away from the current one 2586 // is if the current view is a view group that prefers to give focus 2587 // to its children first AND the view is a descendant of it. 2588 mFocusedView = mView.findFocus(); 2589 boolean descendantsHaveDibsOnFocus = 2590 (mFocusedView instanceof ViewGroup) && 2591 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2592 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2593 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2594 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2595 v.requestFocus(); 2596 } 2597 } 2598 } 2599 } 2600 2601 public void recomputeViewAttributes(View child) { 2602 checkThread(); 2603 if (mView == child) { 2604 mAttachInfo.mRecomputeGlobalAttributes = true; 2605 if (!mWillDrawSoon) { 2606 scheduleTraversals(); 2607 } 2608 } 2609 } 2610 2611 void dispatchDetachedFromWindow() { 2612 if (mView != null && mView.mAttachInfo != null) { 2613 if (mAttachInfo.mHardwareRenderer != null && 2614 mAttachInfo.mHardwareRenderer.isEnabled()) { 2615 mAttachInfo.mHardwareRenderer.validate(); 2616 } 2617 mView.dispatchDetachedFromWindow(); 2618 } 2619 2620 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2621 mAccessibilityManager.removeAccessibilityStateChangeListener( 2622 mAccessibilityInteractionConnectionManager); 2623 removeSendWindowContentChangedCallback(); 2624 2625 destroyHardwareRenderer(); 2626 2627 setAccessibilityFocus(null, null); 2628 2629 mView = null; 2630 mAttachInfo.mRootView = null; 2631 mAttachInfo.mSurface = null; 2632 2633 mSurface.release(); 2634 2635 if (mInputQueueCallback != null && mInputQueue != null) { 2636 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2637 mInputQueueCallback = null; 2638 mInputQueue = null; 2639 } else if (mInputEventReceiver != null) { 2640 mInputEventReceiver.dispose(); 2641 mInputEventReceiver = null; 2642 } 2643 try { 2644 mWindowSession.remove(mWindow); 2645 } catch (RemoteException e) { 2646 } 2647 2648 // Dispose the input channel after removing the window so the Window Manager 2649 // doesn't interpret the input channel being closed as an abnormal termination. 2650 if (mInputChannel != null) { 2651 mInputChannel.dispose(); 2652 mInputChannel = null; 2653 } 2654 2655 unscheduleTraversals(); 2656 } 2657 2658 void updateConfiguration(Configuration config, boolean force) { 2659 if (DEBUG_CONFIGURATION) Log.v(TAG, 2660 "Applying new config to window " 2661 + mWindowAttributes.getTitle() 2662 + ": " + config); 2663 2664 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2665 if (ci != null) { 2666 config = new Configuration(config); 2667 ci.applyToConfiguration(mNoncompatDensity, config); 2668 } 2669 2670 synchronized (sConfigCallbacks) { 2671 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2672 sConfigCallbacks.get(i).onConfigurationChanged(config); 2673 } 2674 } 2675 if (mView != null) { 2676 // At this point the resources have been updated to 2677 // have the most recent config, whatever that is. Use 2678 // the one in them which may be newer. 2679 config = mView.getResources().getConfiguration(); 2680 if (force || mLastConfiguration.diff(config) != 0) { 2681 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2682 final int currentLayoutDirection = config.getLayoutDirection(); 2683 mLastConfiguration.setTo(config); 2684 if (lastLayoutDirection != currentLayoutDirection) { 2685 mView.setLayoutDirection(currentLayoutDirection); 2686 } 2687 mView.dispatchConfigurationChanged(config); 2688 } 2689 } 2690 } 2691 2692 /** 2693 * Return true if child is an ancestor of parent, (or equal to the parent). 2694 */ 2695 public static boolean isViewDescendantOf(View child, View parent) { 2696 if (child == parent) { 2697 return true; 2698 } 2699 2700 final ViewParent theParent = child.getParent(); 2701 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2702 } 2703 2704 private static void forceLayout(View view) { 2705 view.forceLayout(); 2706 if (view instanceof ViewGroup) { 2707 ViewGroup group = (ViewGroup) view; 2708 final int count = group.getChildCount(); 2709 for (int i = 0; i < count; i++) { 2710 forceLayout(group.getChildAt(i)); 2711 } 2712 } 2713 } 2714 2715 private final static int MSG_INVALIDATE = 1; 2716 private final static int MSG_INVALIDATE_RECT = 2; 2717 private final static int MSG_DIE = 3; 2718 private final static int MSG_RESIZED = 4; 2719 private final static int MSG_RESIZED_REPORT = 5; 2720 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2721 private final static int MSG_DISPATCH_KEY = 7; 2722 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2723 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2724 private final static int MSG_IME_FINISHED_EVENT = 10; 2725 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2726 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2727 private final static int MSG_CHECK_FOCUS = 13; 2728 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2729 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2730 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2731 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2732 private final static int MSG_UPDATE_CONFIGURATION = 18; 2733 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2734 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2735 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2736 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2737 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2738 private final static int MSG_INVALIDATE_WORLD = 24; 2739 private final static int MSG_WINDOW_MOVED = 25; 2740 2741 final class ViewRootHandler extends Handler { 2742 @Override 2743 public String getMessageName(Message message) { 2744 switch (message.what) { 2745 case MSG_INVALIDATE: 2746 return "MSG_INVALIDATE"; 2747 case MSG_INVALIDATE_RECT: 2748 return "MSG_INVALIDATE_RECT"; 2749 case MSG_DIE: 2750 return "MSG_DIE"; 2751 case MSG_RESIZED: 2752 return "MSG_RESIZED"; 2753 case MSG_RESIZED_REPORT: 2754 return "MSG_RESIZED_REPORT"; 2755 case MSG_WINDOW_FOCUS_CHANGED: 2756 return "MSG_WINDOW_FOCUS_CHANGED"; 2757 case MSG_DISPATCH_KEY: 2758 return "MSG_DISPATCH_KEY"; 2759 case MSG_DISPATCH_APP_VISIBILITY: 2760 return "MSG_DISPATCH_APP_VISIBILITY"; 2761 case MSG_DISPATCH_GET_NEW_SURFACE: 2762 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2763 case MSG_IME_FINISHED_EVENT: 2764 return "MSG_IME_FINISHED_EVENT"; 2765 case MSG_DISPATCH_KEY_FROM_IME: 2766 return "MSG_DISPATCH_KEY_FROM_IME"; 2767 case MSG_FINISH_INPUT_CONNECTION: 2768 return "MSG_FINISH_INPUT_CONNECTION"; 2769 case MSG_CHECK_FOCUS: 2770 return "MSG_CHECK_FOCUS"; 2771 case MSG_CLOSE_SYSTEM_DIALOGS: 2772 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2773 case MSG_DISPATCH_DRAG_EVENT: 2774 return "MSG_DISPATCH_DRAG_EVENT"; 2775 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2776 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2777 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2778 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2779 case MSG_UPDATE_CONFIGURATION: 2780 return "MSG_UPDATE_CONFIGURATION"; 2781 case MSG_PROCESS_INPUT_EVENTS: 2782 return "MSG_PROCESS_INPUT_EVENTS"; 2783 case MSG_DISPATCH_SCREEN_STATE: 2784 return "MSG_DISPATCH_SCREEN_STATE"; 2785 case MSG_INVALIDATE_DISPLAY_LIST: 2786 return "MSG_INVALIDATE_DISPLAY_LIST"; 2787 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2788 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2789 case MSG_DISPATCH_DONE_ANIMATING: 2790 return "MSG_DISPATCH_DONE_ANIMATING"; 2791 case MSG_WINDOW_MOVED: 2792 return "MSG_WINDOW_MOVED"; 2793 } 2794 return super.getMessageName(message); 2795 } 2796 2797 @Override 2798 public void handleMessage(Message msg) { 2799 switch (msg.what) { 2800 case MSG_INVALIDATE: 2801 ((View) msg.obj).invalidate(); 2802 break; 2803 case MSG_INVALIDATE_RECT: 2804 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2805 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2806 info.release(); 2807 break; 2808 case MSG_IME_FINISHED_EVENT: 2809 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2810 break; 2811 case MSG_PROCESS_INPUT_EVENTS: 2812 mProcessInputEventsScheduled = false; 2813 doProcessInputEvents(); 2814 break; 2815 case MSG_DISPATCH_APP_VISIBILITY: 2816 handleAppVisibility(msg.arg1 != 0); 2817 break; 2818 case MSG_DISPATCH_GET_NEW_SURFACE: 2819 handleGetNewSurface(); 2820 break; 2821 case MSG_RESIZED: { 2822 // Recycled in the fall through... 2823 SomeArgs args = (SomeArgs) msg.obj; 2824 if (mWinFrame.equals(args.arg1) 2825 && mPendingContentInsets.equals(args.arg2) 2826 && mPendingVisibleInsets.equals(args.arg3) 2827 && args.arg4 == null) { 2828 break; 2829 } 2830 } // fall through... 2831 case MSG_RESIZED_REPORT: 2832 if (mAdded) { 2833 SomeArgs args = (SomeArgs) msg.obj; 2834 2835 Configuration config = (Configuration) args.arg4; 2836 if (config != null) { 2837 updateConfiguration(config, false); 2838 } 2839 2840 mWinFrame.set((Rect) args.arg1); 2841 mPendingContentInsets.set((Rect) args.arg2); 2842 mPendingVisibleInsets.set((Rect) args.arg3); 2843 2844 args.recycle(); 2845 2846 if (msg.what == MSG_RESIZED_REPORT) { 2847 mReportNextDraw = true; 2848 } 2849 2850 if (mView != null) { 2851 forceLayout(mView); 2852 } 2853 2854 requestLayout(); 2855 } 2856 break; 2857 case MSG_WINDOW_MOVED: 2858 if (mAdded) { 2859 final int w = mWinFrame.width(); 2860 final int h = mWinFrame.height(); 2861 final int l = msg.arg1; 2862 final int t = msg.arg2; 2863 mWinFrame.left = l; 2864 mWinFrame.right = l + w; 2865 mWinFrame.top = t; 2866 mWinFrame.bottom = t + h; 2867 2868 if (mView != null) { 2869 forceLayout(mView); 2870 } 2871 requestLayout(); 2872 } 2873 break; 2874 case MSG_WINDOW_FOCUS_CHANGED: { 2875 if (mAdded) { 2876 boolean hasWindowFocus = msg.arg1 != 0; 2877 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2878 2879 profileRendering(hasWindowFocus); 2880 2881 if (hasWindowFocus) { 2882 boolean inTouchMode = msg.arg2 != 0; 2883 ensureTouchModeLocally(inTouchMode); 2884 2885 if (mAttachInfo.mHardwareRenderer != null && 2886 mSurface != null && mSurface.isValid()) { 2887 mFullRedrawNeeded = true; 2888 try { 2889 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2890 mWidth, mHeight, mHolder.getSurface())) { 2891 mFullRedrawNeeded = true; 2892 } 2893 } catch (Surface.OutOfResourcesException e) { 2894 Log.e(TAG, "OutOfResourcesException locking surface", e); 2895 try { 2896 if (!mWindowSession.outOfMemory(mWindow)) { 2897 Slog.w(TAG, "No processes killed for memory; killing self"); 2898 Process.killProcess(Process.myPid()); 2899 } 2900 } catch (RemoteException ex) { 2901 } 2902 // Retry in a bit. 2903 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2904 return; 2905 } 2906 } 2907 } 2908 2909 mLastWasImTarget = WindowManager.LayoutParams 2910 .mayUseInputMethod(mWindowAttributes.flags); 2911 2912 InputMethodManager imm = InputMethodManager.peekInstance(); 2913 if (mView != null) { 2914 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2915 imm.startGettingWindowFocus(mView); 2916 } 2917 mAttachInfo.mKeyDispatchState.reset(); 2918 mView.dispatchWindowFocusChanged(hasWindowFocus); 2919 } 2920 2921 // Note: must be done after the focus change callbacks, 2922 // so all of the view state is set up correctly. 2923 if (hasWindowFocus) { 2924 if (imm != null && mLastWasImTarget) { 2925 imm.onWindowFocus(mView, mView.findFocus(), 2926 mWindowAttributes.softInputMode, 2927 !mHasHadWindowFocus, mWindowAttributes.flags); 2928 } 2929 // Clear the forward bit. We can just do this directly, since 2930 // the window manager doesn't care about it. 2931 mWindowAttributes.softInputMode &= 2932 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2933 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2934 .softInputMode &= 2935 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2936 mHasHadWindowFocus = true; 2937 } 2938 2939 setAccessibilityFocus(null, null); 2940 2941 if (mView != null && mAccessibilityManager.isEnabled()) { 2942 if (hasWindowFocus) { 2943 mView.sendAccessibilityEvent( 2944 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2945 } 2946 } 2947 } 2948 } break; 2949 case MSG_DIE: 2950 doDie(); 2951 break; 2952 case MSG_DISPATCH_KEY: { 2953 KeyEvent event = (KeyEvent)msg.obj; 2954 enqueueInputEvent(event, null, 0, true); 2955 } break; 2956 case MSG_DISPATCH_KEY_FROM_IME: { 2957 if (LOCAL_LOGV) Log.v( 2958 TAG, "Dispatching key " 2959 + msg.obj + " from IME to " + mView); 2960 KeyEvent event = (KeyEvent)msg.obj; 2961 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2962 // The IME is trying to say this event is from the 2963 // system! Bad bad bad! 2964 //noinspection UnusedAssignment 2965 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2966 } 2967 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2968 } break; 2969 case MSG_FINISH_INPUT_CONNECTION: { 2970 InputMethodManager imm = InputMethodManager.peekInstance(); 2971 if (imm != null) { 2972 imm.reportFinishInputConnection((InputConnection)msg.obj); 2973 } 2974 } break; 2975 case MSG_CHECK_FOCUS: { 2976 InputMethodManager imm = InputMethodManager.peekInstance(); 2977 if (imm != null) { 2978 imm.checkFocus(); 2979 } 2980 } break; 2981 case MSG_CLOSE_SYSTEM_DIALOGS: { 2982 if (mView != null) { 2983 mView.onCloseSystemDialogs((String)msg.obj); 2984 } 2985 } break; 2986 case MSG_DISPATCH_DRAG_EVENT: 2987 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2988 DragEvent event = (DragEvent)msg.obj; 2989 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2990 handleDragEvent(event); 2991 } break; 2992 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2993 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2994 } break; 2995 case MSG_UPDATE_CONFIGURATION: { 2996 Configuration config = (Configuration)msg.obj; 2997 if (config.isOtherSeqNewer(mLastConfiguration)) { 2998 config = mLastConfiguration; 2999 } 3000 updateConfiguration(config, false); 3001 } break; 3002 case MSG_DISPATCH_SCREEN_STATE: { 3003 if (mView != null) { 3004 handleScreenStateChange(msg.arg1 == 1); 3005 } 3006 } break; 3007 case MSG_INVALIDATE_DISPLAY_LIST: { 3008 invalidateDisplayLists(); 3009 } break; 3010 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3011 setAccessibilityFocus(null, null); 3012 } break; 3013 case MSG_DISPATCH_DONE_ANIMATING: { 3014 handleDispatchDoneAnimating(); 3015 } break; 3016 case MSG_INVALIDATE_WORLD: { 3017 if (mView != null) { 3018 invalidateWorld(mView); 3019 } 3020 } break; 3021 } 3022 } 3023 } 3024 3025 final ViewRootHandler mHandler = new ViewRootHandler(); 3026 3027 /** 3028 * Something in the current window tells us we need to change the touch mode. For 3029 * example, we are not in touch mode, and the user touches the screen. 3030 * 3031 * If the touch mode has changed, tell the window manager, and handle it locally. 3032 * 3033 * @param inTouchMode Whether we want to be in touch mode. 3034 * @return True if the touch mode changed and focus changed was changed as a result 3035 */ 3036 boolean ensureTouchMode(boolean inTouchMode) { 3037 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3038 + "touch mode is " + mAttachInfo.mInTouchMode); 3039 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3040 3041 // tell the window manager 3042 try { 3043 mWindowSession.setInTouchMode(inTouchMode); 3044 } catch (RemoteException e) { 3045 throw new RuntimeException(e); 3046 } 3047 3048 // handle the change 3049 return ensureTouchModeLocally(inTouchMode); 3050 } 3051 3052 /** 3053 * Ensure that the touch mode for this window is set, and if it is changing, 3054 * take the appropriate action. 3055 * @param inTouchMode Whether we want to be in touch mode. 3056 * @return True if the touch mode changed and focus changed was changed as a result 3057 */ 3058 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3059 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3060 + "touch mode is " + mAttachInfo.mInTouchMode); 3061 3062 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3063 3064 mAttachInfo.mInTouchMode = inTouchMode; 3065 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3066 3067 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3068 } 3069 3070 private boolean enterTouchMode() { 3071 if (mView != null) { 3072 if (mView.hasFocus()) { 3073 // note: not relying on mFocusedView here because this could 3074 // be when the window is first being added, and mFocused isn't 3075 // set yet. 3076 final View focused = mView.findFocus(); 3077 if (focused != null && !focused.isFocusableInTouchMode()) { 3078 3079 final ViewGroup ancestorToTakeFocus = 3080 findAncestorToTakeFocusInTouchMode(focused); 3081 if (ancestorToTakeFocus != null) { 3082 // there is an ancestor that wants focus after its descendants that 3083 // is focusable in touch mode.. give it focus 3084 return ancestorToTakeFocus.requestFocus(); 3085 } else { 3086 // nothing appropriate to have focus in touch mode, clear it out 3087 mView.unFocus(); 3088 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3089 mFocusedView = null; 3090 mOldFocusedView = null; 3091 return true; 3092 } 3093 } 3094 } 3095 } 3096 return false; 3097 } 3098 3099 /** 3100 * Find an ancestor of focused that wants focus after its descendants and is 3101 * focusable in touch mode. 3102 * @param focused The currently focused view. 3103 * @return An appropriate view, or null if no such view exists. 3104 */ 3105 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3106 ViewParent parent = focused.getParent(); 3107 while (parent instanceof ViewGroup) { 3108 final ViewGroup vgParent = (ViewGroup) parent; 3109 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3110 && vgParent.isFocusableInTouchMode()) { 3111 return vgParent; 3112 } 3113 if (vgParent.isRootNamespace()) { 3114 return null; 3115 } else { 3116 parent = vgParent.getParent(); 3117 } 3118 } 3119 return null; 3120 } 3121 3122 private boolean leaveTouchMode() { 3123 if (mView != null) { 3124 if (mView.hasFocus()) { 3125 // i learned the hard way to not trust mFocusedView :) 3126 mFocusedView = mView.findFocus(); 3127 if (!(mFocusedView instanceof ViewGroup)) { 3128 // some view has focus, let it keep it 3129 return false; 3130 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3131 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3132 // some view group has focus, and doesn't prefer its children 3133 // over itself for focus, so let them keep it. 3134 return false; 3135 } 3136 } 3137 3138 // find the best view to give focus to in this brave new non-touch-mode 3139 // world 3140 final View focused = focusSearch(null, View.FOCUS_DOWN); 3141 if (focused != null) { 3142 return focused.requestFocus(View.FOCUS_DOWN); 3143 } 3144 } 3145 return false; 3146 } 3147 3148 private void deliverInputEvent(QueuedInputEvent q) { 3149 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3150 try { 3151 if (q.mEvent instanceof KeyEvent) { 3152 deliverKeyEvent(q); 3153 } else { 3154 final int source = q.mEvent.getSource(); 3155 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3156 deliverPointerEvent(q); 3157 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3158 deliverTrackballEvent(q); 3159 } else { 3160 deliverGenericMotionEvent(q); 3161 } 3162 } 3163 } finally { 3164 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3165 } 3166 } 3167 3168 private void deliverPointerEvent(QueuedInputEvent q) { 3169 final MotionEvent event = (MotionEvent)q.mEvent; 3170 final boolean isTouchEvent = event.isTouchEvent(); 3171 if (mInputEventConsistencyVerifier != null) { 3172 if (isTouchEvent) { 3173 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3174 } else { 3175 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3176 } 3177 } 3178 3179 // If there is no view, then the event will not be handled. 3180 if (mView == null || !mAdded) { 3181 finishInputEvent(q, false); 3182 return; 3183 } 3184 3185 // Translate the pointer event for compatibility, if needed. 3186 if (mTranslator != null) { 3187 mTranslator.translateEventInScreenToAppWindow(event); 3188 } 3189 3190 // Enter touch mode on down or scroll. 3191 final int action = event.getAction(); 3192 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3193 ensureTouchMode(true); 3194 } 3195 3196 // Offset the scroll position. 3197 if (mCurScrollY != 0) { 3198 event.offsetLocation(0, mCurScrollY); 3199 } 3200 if (MEASURE_LATENCY) { 3201 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3202 } 3203 3204 // Remember the touch position for possible drag-initiation. 3205 if (isTouchEvent) { 3206 mLastTouchPoint.x = event.getRawX(); 3207 mLastTouchPoint.y = event.getRawY(); 3208 } 3209 3210 // Dispatch touch to view hierarchy. 3211 boolean handled = mView.dispatchPointerEvent(event); 3212 if (MEASURE_LATENCY) { 3213 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3214 } 3215 if (handled) { 3216 finishInputEvent(q, true); 3217 return; 3218 } 3219 3220 // Pointer event was unhandled. 3221 finishInputEvent(q, false); 3222 } 3223 3224 private void deliverTrackballEvent(QueuedInputEvent q) { 3225 final MotionEvent event = (MotionEvent)q.mEvent; 3226 if (mInputEventConsistencyVerifier != null) { 3227 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3228 } 3229 3230 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3231 if (LOCAL_LOGV) 3232 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3233 3234 // Dispatch to the IME before propagating down the view hierarchy. 3235 // The IME will eventually call back into handleImeFinishedEvent. 3236 if (mLastWasImTarget) { 3237 InputMethodManager imm = InputMethodManager.peekInstance(); 3238 if (imm != null) { 3239 final int seq = event.getSequenceNumber(); 3240 if (DEBUG_IMF) 3241 Log.v(TAG, "Sending trackball event to IME: seq=" 3242 + seq + " event=" + event); 3243 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3244 mInputMethodCallback); 3245 return; 3246 } 3247 } 3248 } 3249 3250 // Not dispatching to IME, continue with post IME actions. 3251 deliverTrackballEventPostIme(q); 3252 } 3253 3254 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3255 final MotionEvent event = (MotionEvent) q.mEvent; 3256 3257 // If there is no view, then the event will not be handled. 3258 if (mView == null || !mAdded) { 3259 finishInputEvent(q, false); 3260 return; 3261 } 3262 3263 // Deliver the trackball event to the view. 3264 if (mView.dispatchTrackballEvent(event)) { 3265 // If we reach this, we delivered a trackball event to mView and 3266 // mView consumed it. Because we will not translate the trackball 3267 // event into a key event, touch mode will not exit, so we exit 3268 // touch mode here. 3269 ensureTouchMode(false); 3270 3271 finishInputEvent(q, true); 3272 mLastTrackballTime = Integer.MIN_VALUE; 3273 return; 3274 } 3275 3276 // Translate the trackball event into DPAD keys and try to deliver those. 3277 final TrackballAxis x = mTrackballAxisX; 3278 final TrackballAxis y = mTrackballAxisY; 3279 3280 long curTime = SystemClock.uptimeMillis(); 3281 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3282 // It has been too long since the last movement, 3283 // so restart at the beginning. 3284 x.reset(0); 3285 y.reset(0); 3286 mLastTrackballTime = curTime; 3287 } 3288 3289 final int action = event.getAction(); 3290 final int metaState = event.getMetaState(); 3291 switch (action) { 3292 case MotionEvent.ACTION_DOWN: 3293 x.reset(2); 3294 y.reset(2); 3295 enqueueInputEvent(new KeyEvent(curTime, curTime, 3296 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3297 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3298 InputDevice.SOURCE_KEYBOARD)); 3299 break; 3300 case MotionEvent.ACTION_UP: 3301 x.reset(2); 3302 y.reset(2); 3303 enqueueInputEvent(new KeyEvent(curTime, curTime, 3304 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3305 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3306 InputDevice.SOURCE_KEYBOARD)); 3307 break; 3308 } 3309 3310 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3311 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3312 + " move=" + event.getX() 3313 + " / Y=" + y.position + " step=" 3314 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3315 + " move=" + event.getY()); 3316 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3317 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3318 3319 // Generate DPAD events based on the trackball movement. 3320 // We pick the axis that has moved the most as the direction of 3321 // the DPAD. When we generate DPAD events for one axis, then the 3322 // other axis is reset -- we don't want to perform DPAD jumps due 3323 // to slight movements in the trackball when making major movements 3324 // along the other axis. 3325 int keycode = 0; 3326 int movement = 0; 3327 float accel = 1; 3328 if (xOff > yOff) { 3329 movement = x.generate((2/event.getXPrecision())); 3330 if (movement != 0) { 3331 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3332 : KeyEvent.KEYCODE_DPAD_LEFT; 3333 accel = x.acceleration; 3334 y.reset(2); 3335 } 3336 } else if (yOff > 0) { 3337 movement = y.generate((2/event.getYPrecision())); 3338 if (movement != 0) { 3339 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3340 : KeyEvent.KEYCODE_DPAD_UP; 3341 accel = y.acceleration; 3342 x.reset(2); 3343 } 3344 } 3345 3346 if (keycode != 0) { 3347 if (movement < 0) movement = -movement; 3348 int accelMovement = (int)(movement * accel); 3349 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3350 + " accelMovement=" + accelMovement 3351 + " accel=" + accel); 3352 if (accelMovement > movement) { 3353 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3354 + keycode); 3355 movement--; 3356 int repeatCount = accelMovement - movement; 3357 enqueueInputEvent(new KeyEvent(curTime, curTime, 3358 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3359 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3360 InputDevice.SOURCE_KEYBOARD)); 3361 } 3362 while (movement > 0) { 3363 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3364 + keycode); 3365 movement--; 3366 curTime = SystemClock.uptimeMillis(); 3367 enqueueInputEvent(new KeyEvent(curTime, curTime, 3368 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3369 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3370 InputDevice.SOURCE_KEYBOARD)); 3371 enqueueInputEvent(new KeyEvent(curTime, curTime, 3372 KeyEvent.ACTION_UP, keycode, 0, metaState, 3373 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3374 InputDevice.SOURCE_KEYBOARD)); 3375 } 3376 mLastTrackballTime = curTime; 3377 } 3378 3379 // Unfortunately we can't tell whether the application consumed the keys, so 3380 // we always consider the trackball event handled. 3381 finishInputEvent(q, true); 3382 } 3383 3384 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3385 final MotionEvent event = (MotionEvent)q.mEvent; 3386 if (mInputEventConsistencyVerifier != null) { 3387 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3388 } 3389 3390 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3391 if (LOCAL_LOGV) 3392 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3393 3394 // Dispatch to the IME before propagating down the view hierarchy. 3395 // The IME will eventually call back into handleImeFinishedEvent. 3396 if (mLastWasImTarget) { 3397 InputMethodManager imm = InputMethodManager.peekInstance(); 3398 if (imm != null) { 3399 final int seq = event.getSequenceNumber(); 3400 if (DEBUG_IMF) 3401 Log.v(TAG, "Sending generic motion event to IME: seq=" 3402 + seq + " event=" + event); 3403 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3404 mInputMethodCallback); 3405 return; 3406 } 3407 } 3408 } 3409 3410 // Not dispatching to IME, continue with post IME actions. 3411 deliverGenericMotionEventPostIme(q); 3412 } 3413 3414 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3415 final MotionEvent event = (MotionEvent) q.mEvent; 3416 final boolean isJoystick = (event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3417 3418 // If there is no view, then the event will not be handled. 3419 if (mView == null || !mAdded) { 3420 if (isJoystick) { 3421 updateJoystickDirection(event, false); 3422 } 3423 finishInputEvent(q, false); 3424 return; 3425 } 3426 3427 // Deliver the event to the view. 3428 if (mView.dispatchGenericMotionEvent(event)) { 3429 if (isJoystick) { 3430 updateJoystickDirection(event, false); 3431 } 3432 finishInputEvent(q, true); 3433 return; 3434 } 3435 3436 if (isJoystick) { 3437 // Translate the joystick event into DPAD keys and try to deliver 3438 // those. 3439 updateJoystickDirection(event, true); 3440 finishInputEvent(q, true); 3441 } else { 3442 finishInputEvent(q, false); 3443 } 3444 } 3445 3446 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3447 final long time = event.getEventTime(); 3448 final int metaState = event.getMetaState(); 3449 final int deviceId = event.getDeviceId(); 3450 final int source = event.getSource(); 3451 3452 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3453 if (xDirection == 0) { 3454 xDirection = joystickAxisValueToDirection(event.getX()); 3455 } 3456 3457 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3458 if (yDirection == 0) { 3459 yDirection = joystickAxisValueToDirection(event.getY()); 3460 } 3461 3462 if (xDirection != mLastJoystickXDirection) { 3463 if (mLastJoystickXKeyCode != 0) { 3464 enqueueInputEvent(new KeyEvent(time, time, 3465 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3466 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3467 mLastJoystickXKeyCode = 0; 3468 } 3469 3470 mLastJoystickXDirection = xDirection; 3471 3472 if (xDirection != 0 && synthesizeNewKeys) { 3473 mLastJoystickXKeyCode = xDirection > 0 3474 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3475 enqueueInputEvent(new KeyEvent(time, time, 3476 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3477 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3478 } 3479 } 3480 3481 if (yDirection != mLastJoystickYDirection) { 3482 if (mLastJoystickYKeyCode != 0) { 3483 enqueueInputEvent(new KeyEvent(time, time, 3484 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3485 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3486 mLastJoystickYKeyCode = 0; 3487 } 3488 3489 mLastJoystickYDirection = yDirection; 3490 3491 if (yDirection != 0 && synthesizeNewKeys) { 3492 mLastJoystickYKeyCode = yDirection > 0 3493 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3494 enqueueInputEvent(new KeyEvent(time, time, 3495 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3496 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3497 } 3498 } 3499 } 3500 3501 private static int joystickAxisValueToDirection(float value) { 3502 if (value >= 0.5f) { 3503 return 1; 3504 } else if (value <= -0.5f) { 3505 return -1; 3506 } else { 3507 return 0; 3508 } 3509 } 3510 3511 /** 3512 * Returns true if the key is used for keyboard navigation. 3513 * @param keyEvent The key event. 3514 * @return True if the key is used for keyboard navigation. 3515 */ 3516 private static boolean isNavigationKey(KeyEvent keyEvent) { 3517 switch (keyEvent.getKeyCode()) { 3518 case KeyEvent.KEYCODE_DPAD_LEFT: 3519 case KeyEvent.KEYCODE_DPAD_RIGHT: 3520 case KeyEvent.KEYCODE_DPAD_UP: 3521 case KeyEvent.KEYCODE_DPAD_DOWN: 3522 case KeyEvent.KEYCODE_DPAD_CENTER: 3523 case KeyEvent.KEYCODE_PAGE_UP: 3524 case KeyEvent.KEYCODE_PAGE_DOWN: 3525 case KeyEvent.KEYCODE_MOVE_HOME: 3526 case KeyEvent.KEYCODE_MOVE_END: 3527 case KeyEvent.KEYCODE_TAB: 3528 case KeyEvent.KEYCODE_SPACE: 3529 case KeyEvent.KEYCODE_ENTER: 3530 return true; 3531 } 3532 return false; 3533 } 3534 3535 /** 3536 * Returns true if the key is used for typing. 3537 * @param keyEvent The key event. 3538 * @return True if the key is used for typing. 3539 */ 3540 private static boolean isTypingKey(KeyEvent keyEvent) { 3541 return keyEvent.getUnicodeChar() > 0; 3542 } 3543 3544 /** 3545 * See if the key event means we should leave touch mode (and leave touch mode if so). 3546 * @param event The key event. 3547 * @return Whether this key event should be consumed (meaning the act of 3548 * leaving touch mode alone is considered the event). 3549 */ 3550 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3551 // Only relevant in touch mode. 3552 if (!mAttachInfo.mInTouchMode) { 3553 return false; 3554 } 3555 3556 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3557 final int action = event.getAction(); 3558 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3559 return false; 3560 } 3561 3562 // Don't leave touch mode if the IME told us not to. 3563 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3564 return false; 3565 } 3566 3567 // If the key can be used for keyboard navigation then leave touch mode 3568 // and select a focused view if needed (in ensureTouchMode). 3569 // When a new focused view is selected, we consume the navigation key because 3570 // navigation doesn't make much sense unless a view already has focus so 3571 // the key's purpose is to set focus. 3572 if (isNavigationKey(event)) { 3573 return ensureTouchMode(false); 3574 } 3575 3576 // If the key can be used for typing then leave touch mode 3577 // and select a focused view if needed (in ensureTouchMode). 3578 // Always allow the view to process the typing key. 3579 if (isTypingKey(event)) { 3580 ensureTouchMode(false); 3581 return false; 3582 } 3583 3584 return false; 3585 } 3586 3587 private void deliverKeyEvent(QueuedInputEvent q) { 3588 final KeyEvent event = (KeyEvent)q.mEvent; 3589 if (mInputEventConsistencyVerifier != null) { 3590 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3591 } 3592 3593 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3594 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3595 3596 // Perform predispatching before the IME. 3597 if (mView.dispatchKeyEventPreIme(event)) { 3598 finishInputEvent(q, true); 3599 return; 3600 } 3601 3602 // Dispatch to the IME before propagating down the view hierarchy. 3603 // The IME will eventually call back into handleImeFinishedEvent. 3604 if (mLastWasImTarget) { 3605 InputMethodManager imm = InputMethodManager.peekInstance(); 3606 if (imm != null) { 3607 final int seq = event.getSequenceNumber(); 3608 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3609 + seq + " event=" + event); 3610 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3611 return; 3612 } 3613 } 3614 } 3615 3616 // Not dispatching to IME, continue with post IME actions. 3617 deliverKeyEventPostIme(q); 3618 } 3619 3620 void handleImeFinishedEvent(int seq, boolean handled) { 3621 final QueuedInputEvent q = mCurrentInputEvent; 3622 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3623 if (DEBUG_IMF) { 3624 Log.v(TAG, "IME finished event: seq=" + seq 3625 + " handled=" + handled + " event=" + q); 3626 } 3627 if (handled) { 3628 finishInputEvent(q, true); 3629 } else { 3630 if (q.mEvent instanceof KeyEvent) { 3631 KeyEvent event = (KeyEvent)q.mEvent; 3632 if (event.getAction() != KeyEvent.ACTION_UP) { 3633 // If the window doesn't currently have input focus, then drop 3634 // this event. This could be an event that came back from the 3635 // IME dispatch but the window has lost focus in the meantime. 3636 if (!mAttachInfo.mHasWindowFocus) { 3637 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3638 finishInputEvent(q, true); 3639 return; 3640 } 3641 } 3642 deliverKeyEventPostIme(q); 3643 } else { 3644 MotionEvent event = (MotionEvent)q.mEvent; 3645 if (event.getAction() != MotionEvent.ACTION_CANCEL 3646 && event.getAction() != MotionEvent.ACTION_UP) { 3647 // If the window doesn't currently have input focus, then drop 3648 // this event. This could be an event that came back from the 3649 // IME dispatch but the window has lost focus in the meantime. 3650 if (!mAttachInfo.mHasWindowFocus) { 3651 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3652 finishInputEvent(q, true); 3653 return; 3654 } 3655 } 3656 final int source = q.mEvent.getSource(); 3657 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3658 deliverTrackballEventPostIme(q); 3659 } else { 3660 deliverGenericMotionEventPostIme(q); 3661 } 3662 } 3663 } 3664 } else { 3665 if (DEBUG_IMF) { 3666 Log.v(TAG, "IME finished event: seq=" + seq 3667 + " handled=" + handled + ", event not found!"); 3668 } 3669 } 3670 } 3671 3672 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3673 final KeyEvent event = (KeyEvent)q.mEvent; 3674 3675 // If the view went away, then the event will not be handled. 3676 if (mView == null || !mAdded) { 3677 finishInputEvent(q, false); 3678 return; 3679 } 3680 3681 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3682 if (checkForLeavingTouchModeAndConsume(event)) { 3683 finishInputEvent(q, true); 3684 return; 3685 } 3686 3687 // Make sure the fallback event policy sees all keys that will be delivered to the 3688 // view hierarchy. 3689 mFallbackEventHandler.preDispatchKeyEvent(event); 3690 3691 // Deliver the key to the view hierarchy. 3692 if (mView.dispatchKeyEvent(event)) { 3693 finishInputEvent(q, true); 3694 return; 3695 } 3696 3697 // If the Control modifier is held, try to interpret the key as a shortcut. 3698 if (event.getAction() == KeyEvent.ACTION_DOWN 3699 && event.isCtrlPressed() 3700 && event.getRepeatCount() == 0 3701 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3702 if (mView.dispatchKeyShortcutEvent(event)) { 3703 finishInputEvent(q, true); 3704 return; 3705 } 3706 } 3707 3708 // Apply the fallback event policy. 3709 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3710 finishInputEvent(q, true); 3711 return; 3712 } 3713 3714 // Handle automatic focus changes. 3715 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3716 int direction = 0; 3717 switch (event.getKeyCode()) { 3718 case KeyEvent.KEYCODE_DPAD_LEFT: 3719 if (event.hasNoModifiers()) { 3720 direction = View.FOCUS_LEFT; 3721 } 3722 break; 3723 case KeyEvent.KEYCODE_DPAD_RIGHT: 3724 if (event.hasNoModifiers()) { 3725 direction = View.FOCUS_RIGHT; 3726 } 3727 break; 3728 case KeyEvent.KEYCODE_DPAD_UP: 3729 if (event.hasNoModifiers()) { 3730 direction = View.FOCUS_UP; 3731 } 3732 break; 3733 case KeyEvent.KEYCODE_DPAD_DOWN: 3734 if (event.hasNoModifiers()) { 3735 direction = View.FOCUS_DOWN; 3736 } 3737 break; 3738 case KeyEvent.KEYCODE_TAB: 3739 if (event.hasNoModifiers()) { 3740 direction = View.FOCUS_FORWARD; 3741 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3742 direction = View.FOCUS_BACKWARD; 3743 } 3744 break; 3745 } 3746 if (direction != 0) { 3747 View focused = mView.findFocus(); 3748 if (focused != null) { 3749 View v = focused.focusSearch(direction); 3750 if (v != null && v != focused) { 3751 // do the math the get the interesting rect 3752 // of previous focused into the coord system of 3753 // newly focused view 3754 focused.getFocusedRect(mTempRect); 3755 if (mView instanceof ViewGroup) { 3756 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3757 focused, mTempRect); 3758 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3759 v, mTempRect); 3760 } 3761 if (v.requestFocus(direction, mTempRect)) { 3762 playSoundEffect(SoundEffectConstants 3763 .getContantForFocusDirection(direction)); 3764 finishInputEvent(q, true); 3765 return; 3766 } 3767 } 3768 3769 // Give the focused view a last chance to handle the dpad key. 3770 if (mView.dispatchUnhandledMove(focused, direction)) { 3771 finishInputEvent(q, true); 3772 return; 3773 } 3774 } 3775 } 3776 } 3777 3778 // Key was unhandled. 3779 finishInputEvent(q, false); 3780 } 3781 3782 /* drag/drop */ 3783 void setLocalDragState(Object obj) { 3784 mLocalDragState = obj; 3785 } 3786 3787 private void handleDragEvent(DragEvent event) { 3788 // From the root, only drag start/end/location are dispatched. entered/exited 3789 // are determined and dispatched by the viewgroup hierarchy, who then report 3790 // that back here for ultimate reporting back to the framework. 3791 if (mView != null && mAdded) { 3792 final int what = event.mAction; 3793 3794 if (what == DragEvent.ACTION_DRAG_EXITED) { 3795 // A direct EXITED event means that the window manager knows we've just crossed 3796 // a window boundary, so the current drag target within this one must have 3797 // just been exited. Send it the usual notifications and then we're done 3798 // for now. 3799 mView.dispatchDragEvent(event); 3800 } else { 3801 // Cache the drag description when the operation starts, then fill it in 3802 // on subsequent calls as a convenience 3803 if (what == DragEvent.ACTION_DRAG_STARTED) { 3804 mCurrentDragView = null; // Start the current-recipient tracking 3805 mDragDescription = event.mClipDescription; 3806 } else { 3807 event.mClipDescription = mDragDescription; 3808 } 3809 3810 // For events with a [screen] location, translate into window coordinates 3811 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3812 mDragPoint.set(event.mX, event.mY); 3813 if (mTranslator != null) { 3814 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3815 } 3816 3817 if (mCurScrollY != 0) { 3818 mDragPoint.offset(0, mCurScrollY); 3819 } 3820 3821 event.mX = mDragPoint.x; 3822 event.mY = mDragPoint.y; 3823 } 3824 3825 // Remember who the current drag target is pre-dispatch 3826 final View prevDragView = mCurrentDragView; 3827 3828 // Now dispatch the drag/drop event 3829 boolean result = mView.dispatchDragEvent(event); 3830 3831 // If we changed apparent drag target, tell the OS about it 3832 if (prevDragView != mCurrentDragView) { 3833 try { 3834 if (prevDragView != null) { 3835 mWindowSession.dragRecipientExited(mWindow); 3836 } 3837 if (mCurrentDragView != null) { 3838 mWindowSession.dragRecipientEntered(mWindow); 3839 } 3840 } catch (RemoteException e) { 3841 Slog.e(TAG, "Unable to note drag target change"); 3842 } 3843 } 3844 3845 // Report the drop result when we're done 3846 if (what == DragEvent.ACTION_DROP) { 3847 mDragDescription = null; 3848 try { 3849 Log.i(TAG, "Reporting drop result: " + result); 3850 mWindowSession.reportDropResult(mWindow, result); 3851 } catch (RemoteException e) { 3852 Log.e(TAG, "Unable to report drop result"); 3853 } 3854 } 3855 3856 // When the drag operation ends, release any local state object 3857 // that may have been in use 3858 if (what == DragEvent.ACTION_DRAG_ENDED) { 3859 setLocalDragState(null); 3860 } 3861 } 3862 } 3863 event.recycle(); 3864 } 3865 3866 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3867 if (mSeq != args.seq) { 3868 // The sequence has changed, so we need to update our value and make 3869 // sure to do a traversal afterward so the window manager is given our 3870 // most recent data. 3871 mSeq = args.seq; 3872 mAttachInfo.mForceReportNewAttributes = true; 3873 scheduleTraversals(); 3874 } 3875 if (mView == null) return; 3876 if (args.localChanges != 0) { 3877 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3878 } 3879 if (mAttachInfo != null) { 3880 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3881 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3882 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3883 mView.dispatchSystemUiVisibilityChanged(visibility); 3884 } 3885 } 3886 } 3887 3888 public void handleDispatchDoneAnimating() { 3889 if (mWindowsAnimating) { 3890 mWindowsAnimating = false; 3891 if (!mDirty.isEmpty() || mIsAnimating) { 3892 scheduleTraversals(); 3893 } 3894 } 3895 } 3896 3897 public void getLastTouchPoint(Point outLocation) { 3898 outLocation.x = (int) mLastTouchPoint.x; 3899 outLocation.y = (int) mLastTouchPoint.y; 3900 } 3901 3902 public void setDragFocus(View newDragTarget) { 3903 if (mCurrentDragView != newDragTarget) { 3904 mCurrentDragView = newDragTarget; 3905 } 3906 } 3907 3908 private AudioManager getAudioManager() { 3909 if (mView == null) { 3910 throw new IllegalStateException("getAudioManager called when there is no mView"); 3911 } 3912 if (mAudioManager == null) { 3913 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3914 } 3915 return mAudioManager; 3916 } 3917 3918 public AccessibilityInteractionController getAccessibilityInteractionController() { 3919 if (mView == null) { 3920 throw new IllegalStateException("getAccessibilityInteractionController" 3921 + " called when there is no mView"); 3922 } 3923 if (mAccessibilityInteractionController == null) { 3924 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3925 } 3926 return mAccessibilityInteractionController; 3927 } 3928 3929 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3930 boolean insetsPending) throws RemoteException { 3931 3932 float appScale = mAttachInfo.mApplicationScale; 3933 boolean restore = false; 3934 if (params != null && mTranslator != null) { 3935 restore = true; 3936 params.backup(); 3937 mTranslator.translateWindowLayout(params); 3938 } 3939 if (params != null) { 3940 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3941 } 3942 mPendingConfiguration.seq = 0; 3943 //Log.d(TAG, ">>>>>> CALLING relayout"); 3944 if (params != null && mOrigWindowType != params.type) { 3945 // For compatibility with old apps, don't crash here. 3946 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3947 Slog.w(TAG, "Window type can not be changed after " 3948 + "the window is added; ignoring change of " + mView); 3949 params.type = mOrigWindowType; 3950 } 3951 } 3952 int relayoutResult = mWindowSession.relayout( 3953 mWindow, mSeq, params, 3954 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3955 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3956 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3957 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3958 mPendingConfiguration, mSurface); 3959 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3960 if (restore) { 3961 params.restore(); 3962 } 3963 3964 if (mTranslator != null) { 3965 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3966 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3967 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3968 } 3969 return relayoutResult; 3970 } 3971 3972 /** 3973 * {@inheritDoc} 3974 */ 3975 public void playSoundEffect(int effectId) { 3976 checkThread(); 3977 3978 try { 3979 final AudioManager audioManager = getAudioManager(); 3980 3981 switch (effectId) { 3982 case SoundEffectConstants.CLICK: 3983 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3984 return; 3985 case SoundEffectConstants.NAVIGATION_DOWN: 3986 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3987 return; 3988 case SoundEffectConstants.NAVIGATION_LEFT: 3989 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3990 return; 3991 case SoundEffectConstants.NAVIGATION_RIGHT: 3992 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3993 return; 3994 case SoundEffectConstants.NAVIGATION_UP: 3995 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3996 return; 3997 default: 3998 throw new IllegalArgumentException("unknown effect id " + effectId + 3999 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4000 } 4001 } catch (IllegalStateException e) { 4002 // Exception thrown by getAudioManager() when mView is null 4003 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4004 e.printStackTrace(); 4005 } 4006 } 4007 4008 /** 4009 * {@inheritDoc} 4010 */ 4011 public boolean performHapticFeedback(int effectId, boolean always) { 4012 try { 4013 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4014 } catch (RemoteException e) { 4015 return false; 4016 } 4017 } 4018 4019 /** 4020 * {@inheritDoc} 4021 */ 4022 public View focusSearch(View focused, int direction) { 4023 checkThread(); 4024 if (!(mView instanceof ViewGroup)) { 4025 return null; 4026 } 4027 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4028 } 4029 4030 public void debug() { 4031 mView.debug(); 4032 } 4033 4034 public void dumpGfxInfo(int[] info) { 4035 info[0] = info[1] = 0; 4036 if (mView != null) { 4037 getGfxInfo(mView, info); 4038 } 4039 } 4040 4041 private static void getGfxInfo(View view, int[] info) { 4042 DisplayList displayList = view.mDisplayList; 4043 info[0]++; 4044 if (displayList != null) { 4045 info[1] += displayList.getSize(); 4046 } 4047 4048 if (view instanceof ViewGroup) { 4049 ViewGroup group = (ViewGroup) view; 4050 4051 int count = group.getChildCount(); 4052 for (int i = 0; i < count; i++) { 4053 getGfxInfo(group.getChildAt(i), info); 4054 } 4055 } 4056 } 4057 4058 public void die(boolean immediate) { 4059 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4060 // done by dispatchDetachedFromWindow will cause havoc on return. 4061 if (immediate && !mIsInTraversal) { 4062 doDie(); 4063 } else { 4064 if (!mIsDrawing) { 4065 destroyHardwareRenderer(); 4066 } else { 4067 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4068 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4069 } 4070 mHandler.sendEmptyMessage(MSG_DIE); 4071 } 4072 } 4073 4074 void doDie() { 4075 checkThread(); 4076 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4077 synchronized (this) { 4078 if (mAdded) { 4079 dispatchDetachedFromWindow(); 4080 } 4081 4082 if (mAdded && !mFirst) { 4083 destroyHardwareRenderer(); 4084 4085 if (mView != null) { 4086 int viewVisibility = mView.getVisibility(); 4087 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4088 if (mWindowAttributesChanged || viewVisibilityChanged) { 4089 // If layout params have been changed, first give them 4090 // to the window manager to make sure it has the correct 4091 // animation info. 4092 try { 4093 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4094 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4095 mWindowSession.finishDrawing(mWindow); 4096 } 4097 } catch (RemoteException e) { 4098 } 4099 } 4100 4101 mSurface.release(); 4102 } 4103 } 4104 4105 mAdded = false; 4106 } 4107 } 4108 4109 public void requestUpdateConfiguration(Configuration config) { 4110 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4111 mHandler.sendMessage(msg); 4112 } 4113 4114 public void loadSystemProperties() { 4115 boolean layout = SystemProperties.getBoolean( 4116 View.DEBUG_LAYOUT_PROPERTY, false); 4117 if (layout != mAttachInfo.mDebugLayout) { 4118 mAttachInfo.mDebugLayout = layout; 4119 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4120 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4121 } 4122 } 4123 } 4124 4125 private void destroyHardwareRenderer() { 4126 AttachInfo attachInfo = mAttachInfo; 4127 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4128 4129 if (hardwareRenderer != null) { 4130 if (mView != null) { 4131 hardwareRenderer.destroyHardwareResources(mView); 4132 } 4133 hardwareRenderer.destroy(true); 4134 hardwareRenderer.setRequested(false); 4135 4136 attachInfo.mHardwareRenderer = null; 4137 attachInfo.mHardwareAccelerated = false; 4138 } 4139 } 4140 4141 void dispatchImeFinishedEvent(int seq, boolean handled) { 4142 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4143 msg.arg1 = seq; 4144 msg.arg2 = handled ? 1 : 0; 4145 msg.setAsynchronous(true); 4146 mHandler.sendMessage(msg); 4147 } 4148 4149 public void dispatchFinishInputConnection(InputConnection connection) { 4150 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4151 mHandler.sendMessage(msg); 4152 } 4153 4154 public void dispatchResized(Rect frame, Rect contentInsets, 4155 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4156 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4157 + " contentInsets=" + contentInsets.toShortString() 4158 + " visibleInsets=" + visibleInsets.toShortString() 4159 + " reportDraw=" + reportDraw); 4160 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4161 if (mTranslator != null) { 4162 mTranslator.translateRectInScreenToAppWindow(frame); 4163 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4164 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4165 } 4166 SomeArgs args = SomeArgs.obtain(); 4167 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4168 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4169 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4170 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4171 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4172 msg.obj = args; 4173 mHandler.sendMessage(msg); 4174 } 4175 4176 public void dispatchMoved(int newX, int newY) { 4177 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4178 if (mTranslator != null) { 4179 PointF point = new PointF(newX, newY); 4180 mTranslator.translatePointInScreenToAppWindow(point); 4181 newX = (int) (point.x + 0.5); 4182 newY = (int) (point.y + 0.5); 4183 } 4184 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4185 mHandler.sendMessage(msg); 4186 } 4187 4188 /** 4189 * Represents a pending input event that is waiting in a queue. 4190 * 4191 * Input events are processed in serial order by the timestamp specified by 4192 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4193 * one input event to the application at a time and waits for the application 4194 * to finish handling it before delivering the next one. 4195 * 4196 * However, because the application or IME can synthesize and inject multiple 4197 * key events at a time without going through the input dispatcher, we end up 4198 * needing a queue on the application's side. 4199 */ 4200 private static final class QueuedInputEvent { 4201 public static final int FLAG_DELIVER_POST_IME = 1; 4202 4203 public QueuedInputEvent mNext; 4204 4205 public InputEvent mEvent; 4206 public InputEventReceiver mReceiver; 4207 public int mFlags; 4208 } 4209 4210 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4211 InputEventReceiver receiver, int flags) { 4212 QueuedInputEvent q = mQueuedInputEventPool; 4213 if (q != null) { 4214 mQueuedInputEventPoolSize -= 1; 4215 mQueuedInputEventPool = q.mNext; 4216 q.mNext = null; 4217 } else { 4218 q = new QueuedInputEvent(); 4219 } 4220 4221 q.mEvent = event; 4222 q.mReceiver = receiver; 4223 q.mFlags = flags; 4224 return q; 4225 } 4226 4227 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4228 q.mEvent = null; 4229 q.mReceiver = null; 4230 4231 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4232 mQueuedInputEventPoolSize += 1; 4233 q.mNext = mQueuedInputEventPool; 4234 mQueuedInputEventPool = q; 4235 } 4236 } 4237 4238 void enqueueInputEvent(InputEvent event) { 4239 enqueueInputEvent(event, null, 0, false); 4240 } 4241 4242 void enqueueInputEvent(InputEvent event, 4243 InputEventReceiver receiver, int flags, boolean processImmediately) { 4244 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4245 4246 // Always enqueue the input event in order, regardless of its time stamp. 4247 // We do this because the application or the IME may inject key events 4248 // in response to touch events and we want to ensure that the injected keys 4249 // are processed in the order they were received and we cannot trust that 4250 // the time stamp of injected events are monotonic. 4251 QueuedInputEvent last = mFirstPendingInputEvent; 4252 if (last == null) { 4253 mFirstPendingInputEvent = q; 4254 } else { 4255 while (last.mNext != null) { 4256 last = last.mNext; 4257 } 4258 last.mNext = q; 4259 } 4260 4261 if (processImmediately) { 4262 doProcessInputEvents(); 4263 } else { 4264 scheduleProcessInputEvents(); 4265 } 4266 } 4267 4268 private void scheduleProcessInputEvents() { 4269 if (!mProcessInputEventsScheduled) { 4270 mProcessInputEventsScheduled = true; 4271 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4272 msg.setAsynchronous(true); 4273 mHandler.sendMessage(msg); 4274 } 4275 } 4276 4277 void doProcessInputEvents() { 4278 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4279 QueuedInputEvent q = mFirstPendingInputEvent; 4280 mFirstPendingInputEvent = q.mNext; 4281 q.mNext = null; 4282 mCurrentInputEvent = q; 4283 deliverInputEvent(q); 4284 } 4285 4286 // We are done processing all input events that we can process right now 4287 // so we can clear the pending flag immediately. 4288 if (mProcessInputEventsScheduled) { 4289 mProcessInputEventsScheduled = false; 4290 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4291 } 4292 } 4293 4294 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4295 if (q != mCurrentInputEvent) { 4296 throw new IllegalStateException("finished input event out of order"); 4297 } 4298 4299 if (q.mReceiver != null) { 4300 q.mReceiver.finishInputEvent(q.mEvent, handled); 4301 } else { 4302 q.mEvent.recycleIfNeededAfterDispatch(); 4303 } 4304 4305 recycleQueuedInputEvent(q); 4306 4307 mCurrentInputEvent = null; 4308 if (mFirstPendingInputEvent != null) { 4309 scheduleProcessInputEvents(); 4310 } 4311 } 4312 4313 void scheduleConsumeBatchedInput() { 4314 if (!mConsumeBatchedInputScheduled) { 4315 mConsumeBatchedInputScheduled = true; 4316 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4317 mConsumedBatchedInputRunnable, null); 4318 } 4319 } 4320 4321 void unscheduleConsumeBatchedInput() { 4322 if (mConsumeBatchedInputScheduled) { 4323 mConsumeBatchedInputScheduled = false; 4324 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4325 mConsumedBatchedInputRunnable, null); 4326 } 4327 } 4328 4329 void doConsumeBatchedInput(long frameTimeNanos) { 4330 if (mConsumeBatchedInputScheduled) { 4331 mConsumeBatchedInputScheduled = false; 4332 if (mInputEventReceiver != null) { 4333 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4334 } 4335 doProcessInputEvents(); 4336 } 4337 } 4338 4339 final class TraversalRunnable implements Runnable { 4340 @Override 4341 public void run() { 4342 doTraversal(); 4343 } 4344 } 4345 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4346 4347 final class WindowInputEventReceiver extends InputEventReceiver { 4348 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4349 super(inputChannel, looper); 4350 } 4351 4352 @Override 4353 public void onInputEvent(InputEvent event) { 4354 enqueueInputEvent(event, this, 0, true); 4355 } 4356 4357 @Override 4358 public void onBatchedInputEventPending() { 4359 scheduleConsumeBatchedInput(); 4360 } 4361 4362 @Override 4363 public void dispose() { 4364 unscheduleConsumeBatchedInput(); 4365 super.dispose(); 4366 } 4367 } 4368 WindowInputEventReceiver mInputEventReceiver; 4369 4370 final class ConsumeBatchedInputRunnable implements Runnable { 4371 @Override 4372 public void run() { 4373 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4374 } 4375 } 4376 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4377 new ConsumeBatchedInputRunnable(); 4378 boolean mConsumeBatchedInputScheduled; 4379 4380 final class InvalidateOnAnimationRunnable implements Runnable { 4381 private boolean mPosted; 4382 private ArrayList<View> mViews = new ArrayList<View>(); 4383 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4384 new ArrayList<AttachInfo.InvalidateInfo>(); 4385 private View[] mTempViews; 4386 private AttachInfo.InvalidateInfo[] mTempViewRects; 4387 4388 public void addView(View view) { 4389 synchronized (this) { 4390 mViews.add(view); 4391 postIfNeededLocked(); 4392 } 4393 } 4394 4395 public void addViewRect(AttachInfo.InvalidateInfo info) { 4396 synchronized (this) { 4397 mViewRects.add(info); 4398 postIfNeededLocked(); 4399 } 4400 } 4401 4402 public void removeView(View view) { 4403 synchronized (this) { 4404 mViews.remove(view); 4405 4406 for (int i = mViewRects.size(); i-- > 0; ) { 4407 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4408 if (info.target == view) { 4409 mViewRects.remove(i); 4410 info.release(); 4411 } 4412 } 4413 4414 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4415 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4416 mPosted = false; 4417 } 4418 } 4419 } 4420 4421 @Override 4422 public void run() { 4423 final int viewCount; 4424 final int viewRectCount; 4425 synchronized (this) { 4426 mPosted = false; 4427 4428 viewCount = mViews.size(); 4429 if (viewCount != 0) { 4430 mTempViews = mViews.toArray(mTempViews != null 4431 ? mTempViews : new View[viewCount]); 4432 mViews.clear(); 4433 } 4434 4435 viewRectCount = mViewRects.size(); 4436 if (viewRectCount != 0) { 4437 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4438 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4439 mViewRects.clear(); 4440 } 4441 } 4442 4443 for (int i = 0; i < viewCount; i++) { 4444 mTempViews[i].invalidate(); 4445 mTempViews[i] = null; 4446 } 4447 4448 for (int i = 0; i < viewRectCount; i++) { 4449 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4450 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4451 info.release(); 4452 } 4453 } 4454 4455 private void postIfNeededLocked() { 4456 if (!mPosted) { 4457 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4458 mPosted = true; 4459 } 4460 } 4461 } 4462 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4463 new InvalidateOnAnimationRunnable(); 4464 4465 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4466 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4467 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4468 } 4469 4470 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4471 long delayMilliseconds) { 4472 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4473 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4474 } 4475 4476 public void dispatchInvalidateOnAnimation(View view) { 4477 mInvalidateOnAnimationRunnable.addView(view); 4478 } 4479 4480 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4481 mInvalidateOnAnimationRunnable.addViewRect(info); 4482 } 4483 4484 public void enqueueDisplayList(DisplayList displayList) { 4485 mDisplayLists.add(displayList); 4486 4487 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4488 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4489 mHandler.sendMessage(msg); 4490 } 4491 4492 public void dequeueDisplayList(DisplayList displayList) { 4493 if (mDisplayLists.remove(displayList)) { 4494 displayList.invalidate(); 4495 if (mDisplayLists.size() == 0) { 4496 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4497 } 4498 } 4499 } 4500 4501 public void cancelInvalidate(View view) { 4502 mHandler.removeMessages(MSG_INVALIDATE, view); 4503 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4504 // them to the pool 4505 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4506 mInvalidateOnAnimationRunnable.removeView(view); 4507 } 4508 4509 public void dispatchKey(KeyEvent event) { 4510 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4511 msg.setAsynchronous(true); 4512 mHandler.sendMessage(msg); 4513 } 4514 4515 public void dispatchKeyFromIme(KeyEvent event) { 4516 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4517 msg.setAsynchronous(true); 4518 mHandler.sendMessage(msg); 4519 } 4520 4521 public void dispatchUnhandledKey(KeyEvent event) { 4522 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4523 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4524 final int keyCode = event.getKeyCode(); 4525 final int metaState = event.getMetaState(); 4526 4527 // Check for fallback actions specified by the key character map. 4528 KeyCharacterMap.FallbackAction fallbackAction = 4529 kcm.getFallbackAction(keyCode, metaState); 4530 if (fallbackAction != null) { 4531 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4532 KeyEvent fallbackEvent = KeyEvent.obtain( 4533 event.getDownTime(), event.getEventTime(), 4534 event.getAction(), fallbackAction.keyCode, 4535 event.getRepeatCount(), fallbackAction.metaState, 4536 event.getDeviceId(), event.getScanCode(), 4537 flags, event.getSource(), null); 4538 fallbackAction.recycle(); 4539 4540 dispatchKey(fallbackEvent); 4541 } 4542 } 4543 } 4544 4545 public void dispatchAppVisibility(boolean visible) { 4546 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4547 msg.arg1 = visible ? 1 : 0; 4548 mHandler.sendMessage(msg); 4549 } 4550 4551 public void dispatchScreenStateChange(boolean on) { 4552 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4553 msg.arg1 = on ? 1 : 0; 4554 mHandler.sendMessage(msg); 4555 } 4556 4557 public void dispatchGetNewSurface() { 4558 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4559 mHandler.sendMessage(msg); 4560 } 4561 4562 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4563 Message msg = Message.obtain(); 4564 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4565 msg.arg1 = hasFocus ? 1 : 0; 4566 msg.arg2 = inTouchMode ? 1 : 0; 4567 mHandler.sendMessage(msg); 4568 } 4569 4570 public void dispatchCloseSystemDialogs(String reason) { 4571 Message msg = Message.obtain(); 4572 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4573 msg.obj = reason; 4574 mHandler.sendMessage(msg); 4575 } 4576 4577 public void dispatchDragEvent(DragEvent event) { 4578 final int what; 4579 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4580 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4581 mHandler.removeMessages(what); 4582 } else { 4583 what = MSG_DISPATCH_DRAG_EVENT; 4584 } 4585 Message msg = mHandler.obtainMessage(what, event); 4586 mHandler.sendMessage(msg); 4587 } 4588 4589 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4590 int localValue, int localChanges) { 4591 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4592 args.seq = seq; 4593 args.globalVisibility = globalVisibility; 4594 args.localValue = localValue; 4595 args.localChanges = localChanges; 4596 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4597 } 4598 4599 public void dispatchDoneAnimating() { 4600 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4601 } 4602 4603 public void dispatchCheckFocus() { 4604 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4605 // This will result in a call to checkFocus() below. 4606 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4607 } 4608 } 4609 4610 /** 4611 * Post a callback to send a 4612 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4613 * This event is send at most once every 4614 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4615 */ 4616 private void postSendWindowContentChangedCallback(View source) { 4617 if (mSendWindowContentChangedAccessibilityEvent == null) { 4618 mSendWindowContentChangedAccessibilityEvent = 4619 new SendWindowContentChangedAccessibilityEvent(); 4620 } 4621 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4622 if (oldSource == null) { 4623 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4624 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4625 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4626 } else { 4627 mSendWindowContentChangedAccessibilityEvent.mSource = 4628 getCommonPredecessor(oldSource, source); 4629 } 4630 } 4631 4632 /** 4633 * Remove a posted callback to send a 4634 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4635 */ 4636 private void removeSendWindowContentChangedCallback() { 4637 if (mSendWindowContentChangedAccessibilityEvent != null) { 4638 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4639 } 4640 } 4641 4642 public boolean showContextMenuForChild(View originalView) { 4643 return false; 4644 } 4645 4646 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4647 return null; 4648 } 4649 4650 public void createContextMenu(ContextMenu menu) { 4651 } 4652 4653 public void childDrawableStateChanged(View child) { 4654 } 4655 4656 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4657 if (mView == null) { 4658 return false; 4659 } 4660 // Intercept accessibility focus events fired by virtual nodes to keep 4661 // track of accessibility focus position in such nodes. 4662 final int eventType = event.getEventType(); 4663 switch (eventType) { 4664 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4665 final long sourceNodeId = event.getSourceNodeId(); 4666 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4667 sourceNodeId); 4668 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4669 if (source != null) { 4670 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4671 if (provider != null) { 4672 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4673 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4674 setAccessibilityFocus(source, node); 4675 } 4676 } 4677 } break; 4678 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4679 final long sourceNodeId = event.getSourceNodeId(); 4680 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4681 sourceNodeId); 4682 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4683 if (source != null) { 4684 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4685 if (provider != null) { 4686 setAccessibilityFocus(null, null); 4687 } 4688 } 4689 } break; 4690 } 4691 mAccessibilityManager.sendAccessibilityEvent(event); 4692 return true; 4693 } 4694 4695 @Override 4696 public void childAccessibilityStateChanged(View child) { 4697 postSendWindowContentChangedCallback(child); 4698 } 4699 4700 private View getCommonPredecessor(View first, View second) { 4701 if (mAttachInfo != null) { 4702 if (mTempHashSet == null) { 4703 mTempHashSet = new HashSet<View>(); 4704 } 4705 HashSet<View> seen = mTempHashSet; 4706 seen.clear(); 4707 View firstCurrent = first; 4708 while (firstCurrent != null) { 4709 seen.add(firstCurrent); 4710 ViewParent firstCurrentParent = firstCurrent.mParent; 4711 if (firstCurrentParent instanceof View) { 4712 firstCurrent = (View) firstCurrentParent; 4713 } else { 4714 firstCurrent = null; 4715 } 4716 } 4717 View secondCurrent = second; 4718 while (secondCurrent != null) { 4719 if (seen.contains(secondCurrent)) { 4720 seen.clear(); 4721 return secondCurrent; 4722 } 4723 ViewParent secondCurrentParent = secondCurrent.mParent; 4724 if (secondCurrentParent instanceof View) { 4725 secondCurrent = (View) secondCurrentParent; 4726 } else { 4727 secondCurrent = null; 4728 } 4729 } 4730 seen.clear(); 4731 } 4732 return null; 4733 } 4734 4735 void checkThread() { 4736 if (mThread != Thread.currentThread()) { 4737 throw new CalledFromWrongThreadException( 4738 "Only the original thread that created a view hierarchy can touch its views."); 4739 } 4740 } 4741 4742 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4743 // ViewAncestor never intercepts touch event, so this can be a no-op 4744 } 4745 4746 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4747 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4748 if (rectangle != null) { 4749 mTempRect.set(rectangle); 4750 mTempRect.offset(0, -mCurScrollY); 4751 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4752 try { 4753 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4754 } catch (RemoteException re) { 4755 /* ignore */ 4756 } 4757 } 4758 return scrolled; 4759 } 4760 4761 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4762 // Do nothing. 4763 } 4764 4765 class TakenSurfaceHolder extends BaseSurfaceHolder { 4766 @Override 4767 public boolean onAllowLockCanvas() { 4768 return mDrawingAllowed; 4769 } 4770 4771 @Override 4772 public void onRelayoutContainer() { 4773 // Not currently interesting -- from changing between fixed and layout size. 4774 } 4775 4776 public void setFormat(int format) { 4777 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4778 } 4779 4780 public void setType(int type) { 4781 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4782 } 4783 4784 @Override 4785 public void onUpdateSurface() { 4786 // We take care of format and type changes on our own. 4787 throw new IllegalStateException("Shouldn't be here"); 4788 } 4789 4790 public boolean isCreating() { 4791 return mIsCreating; 4792 } 4793 4794 @Override 4795 public void setFixedSize(int width, int height) { 4796 throw new UnsupportedOperationException( 4797 "Currently only support sizing from layout"); 4798 } 4799 4800 public void setKeepScreenOn(boolean screenOn) { 4801 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4802 } 4803 } 4804 4805 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4806 private WeakReference<ViewRootImpl> mViewAncestor; 4807 4808 public InputMethodCallback(ViewRootImpl viewAncestor) { 4809 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4810 } 4811 4812 @Override 4813 public void finishedEvent(int seq, boolean handled) { 4814 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4815 if (viewAncestor != null) { 4816 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4817 } 4818 } 4819 } 4820 4821 static class W extends IWindow.Stub { 4822 private final WeakReference<ViewRootImpl> mViewAncestor; 4823 private final IWindowSession mWindowSession; 4824 4825 W(ViewRootImpl viewAncestor) { 4826 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4827 mWindowSession = viewAncestor.mWindowSession; 4828 } 4829 4830 public void resized(Rect frame, Rect contentInsets, 4831 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4832 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4833 if (viewAncestor != null) { 4834 viewAncestor.dispatchResized(frame, contentInsets, 4835 visibleInsets, reportDraw, newConfig); 4836 } 4837 } 4838 4839 @Override 4840 public void moved(int newX, int newY) { 4841 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4842 if (viewAncestor != null) { 4843 viewAncestor.dispatchMoved(newX, newY); 4844 } 4845 } 4846 4847 public void dispatchAppVisibility(boolean visible) { 4848 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4849 if (viewAncestor != null) { 4850 viewAncestor.dispatchAppVisibility(visible); 4851 } 4852 } 4853 4854 public void dispatchScreenState(boolean on) { 4855 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4856 if (viewAncestor != null) { 4857 viewAncestor.dispatchScreenStateChange(on); 4858 } 4859 } 4860 4861 public void dispatchGetNewSurface() { 4862 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4863 if (viewAncestor != null) { 4864 viewAncestor.dispatchGetNewSurface(); 4865 } 4866 } 4867 4868 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4869 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4870 if (viewAncestor != null) { 4871 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4872 } 4873 } 4874 4875 private static int checkCallingPermission(String permission) { 4876 try { 4877 return ActivityManagerNative.getDefault().checkPermission( 4878 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4879 } catch (RemoteException e) { 4880 return PackageManager.PERMISSION_DENIED; 4881 } 4882 } 4883 4884 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4885 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4886 if (viewAncestor != null) { 4887 final View view = viewAncestor.mView; 4888 if (view != null) { 4889 if (checkCallingPermission(Manifest.permission.DUMP) != 4890 PackageManager.PERMISSION_GRANTED) { 4891 throw new SecurityException("Insufficient permissions to invoke" 4892 + " executeCommand() from pid=" + Binder.getCallingPid() 4893 + ", uid=" + Binder.getCallingUid()); 4894 } 4895 4896 OutputStream clientStream = null; 4897 try { 4898 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4899 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4900 } catch (IOException e) { 4901 e.printStackTrace(); 4902 } finally { 4903 if (clientStream != null) { 4904 try { 4905 clientStream.close(); 4906 } catch (IOException e) { 4907 e.printStackTrace(); 4908 } 4909 } 4910 } 4911 } 4912 } 4913 } 4914 4915 public void closeSystemDialogs(String reason) { 4916 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4917 if (viewAncestor != null) { 4918 viewAncestor.dispatchCloseSystemDialogs(reason); 4919 } 4920 } 4921 4922 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4923 boolean sync) { 4924 if (sync) { 4925 try { 4926 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4927 } catch (RemoteException e) { 4928 } 4929 } 4930 } 4931 4932 public void dispatchWallpaperCommand(String action, int x, int y, 4933 int z, Bundle extras, boolean sync) { 4934 if (sync) { 4935 try { 4936 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4937 } catch (RemoteException e) { 4938 } 4939 } 4940 } 4941 4942 /* Drag/drop */ 4943 public void dispatchDragEvent(DragEvent event) { 4944 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4945 if (viewAncestor != null) { 4946 viewAncestor.dispatchDragEvent(event); 4947 } 4948 } 4949 4950 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4951 int localValue, int localChanges) { 4952 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4953 if (viewAncestor != null) { 4954 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4955 localValue, localChanges); 4956 } 4957 } 4958 4959 public void doneAnimating() { 4960 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4961 if (viewAncestor != null) { 4962 viewAncestor.dispatchDoneAnimating(); 4963 } 4964 } 4965 } 4966 4967 /** 4968 * Maintains state information for a single trackball axis, generating 4969 * discrete (DPAD) movements based on raw trackball motion. 4970 */ 4971 static final class TrackballAxis { 4972 /** 4973 * The maximum amount of acceleration we will apply. 4974 */ 4975 static final float MAX_ACCELERATION = 20; 4976 4977 /** 4978 * The maximum amount of time (in milliseconds) between events in order 4979 * for us to consider the user to be doing fast trackball movements, 4980 * and thus apply an acceleration. 4981 */ 4982 static final long FAST_MOVE_TIME = 150; 4983 4984 /** 4985 * Scaling factor to the time (in milliseconds) between events to how 4986 * much to multiple/divide the current acceleration. When movement 4987 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4988 * FAST_MOVE_TIME it divides it. 4989 */ 4990 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4991 4992 float position; 4993 float absPosition; 4994 float acceleration = 1; 4995 long lastMoveTime = 0; 4996 int step; 4997 int dir; 4998 int nonAccelMovement; 4999 5000 void reset(int _step) { 5001 position = 0; 5002 acceleration = 1; 5003 lastMoveTime = 0; 5004 step = _step; 5005 dir = 0; 5006 } 5007 5008 /** 5009 * Add trackball movement into the state. If the direction of movement 5010 * has been reversed, the state is reset before adding the 5011 * movement (so that you don't have to compensate for any previously 5012 * collected movement before see the result of the movement in the 5013 * new direction). 5014 * 5015 * @return Returns the absolute value of the amount of movement 5016 * collected so far. 5017 */ 5018 float collect(float off, long time, String axis) { 5019 long normTime; 5020 if (off > 0) { 5021 normTime = (long)(off * FAST_MOVE_TIME); 5022 if (dir < 0) { 5023 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5024 position = 0; 5025 step = 0; 5026 acceleration = 1; 5027 lastMoveTime = 0; 5028 } 5029 dir = 1; 5030 } else if (off < 0) { 5031 normTime = (long)((-off) * FAST_MOVE_TIME); 5032 if (dir > 0) { 5033 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5034 position = 0; 5035 step = 0; 5036 acceleration = 1; 5037 lastMoveTime = 0; 5038 } 5039 dir = -1; 5040 } else { 5041 normTime = 0; 5042 } 5043 5044 // The number of milliseconds between each movement that is 5045 // considered "normal" and will not result in any acceleration 5046 // or deceleration, scaled by the offset we have here. 5047 if (normTime > 0) { 5048 long delta = time - lastMoveTime; 5049 lastMoveTime = time; 5050 float acc = acceleration; 5051 if (delta < normTime) { 5052 // The user is scrolling rapidly, so increase acceleration. 5053 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5054 if (scale > 1) acc *= scale; 5055 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5056 + off + " normTime=" + normTime + " delta=" + delta 5057 + " scale=" + scale + " acc=" + acc); 5058 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5059 } else { 5060 // The user is scrolling slowly, so decrease acceleration. 5061 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5062 if (scale > 1) acc /= scale; 5063 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5064 + off + " normTime=" + normTime + " delta=" + delta 5065 + " scale=" + scale + " acc=" + acc); 5066 acceleration = acc > 1 ? acc : 1; 5067 } 5068 } 5069 position += off; 5070 return (absPosition = Math.abs(position)); 5071 } 5072 5073 /** 5074 * Generate the number of discrete movement events appropriate for 5075 * the currently collected trackball movement. 5076 * 5077 * @param precision The minimum movement required to generate the 5078 * first discrete movement. 5079 * 5080 * @return Returns the number of discrete movements, either positive 5081 * or negative, or 0 if there is not enough trackball movement yet 5082 * for a discrete movement. 5083 */ 5084 int generate(float precision) { 5085 int movement = 0; 5086 nonAccelMovement = 0; 5087 do { 5088 final int dir = position >= 0 ? 1 : -1; 5089 switch (step) { 5090 // If we are going to execute the first step, then we want 5091 // to do this as soon as possible instead of waiting for 5092 // a full movement, in order to make things look responsive. 5093 case 0: 5094 if (absPosition < precision) { 5095 return movement; 5096 } 5097 movement += dir; 5098 nonAccelMovement += dir; 5099 step = 1; 5100 break; 5101 // If we have generated the first movement, then we need 5102 // to wait for the second complete trackball motion before 5103 // generating the second discrete movement. 5104 case 1: 5105 if (absPosition < 2) { 5106 return movement; 5107 } 5108 movement += dir; 5109 nonAccelMovement += dir; 5110 position += dir > 0 ? -2 : 2; 5111 absPosition = Math.abs(position); 5112 step = 2; 5113 break; 5114 // After the first two, we generate discrete movements 5115 // consistently with the trackball, applying an acceleration 5116 // if the trackball is moving quickly. This is a simple 5117 // acceleration on top of what we already compute based 5118 // on how quickly the wheel is being turned, to apply 5119 // a longer increasing acceleration to continuous movement 5120 // in one direction. 5121 default: 5122 if (absPosition < 1) { 5123 return movement; 5124 } 5125 movement += dir; 5126 position += dir >= 0 ? -1 : 1; 5127 absPosition = Math.abs(position); 5128 float acc = acceleration; 5129 acc *= 1.1f; 5130 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5131 break; 5132 } 5133 } while (true); 5134 } 5135 } 5136 5137 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5138 public CalledFromWrongThreadException(String msg) { 5139 super(msg); 5140 } 5141 } 5142 5143 private SurfaceHolder mHolder = new SurfaceHolder() { 5144 // we only need a SurfaceHolder for opengl. it would be nice 5145 // to implement everything else though, especially the callback 5146 // support (opengl doesn't make use of it right now, but eventually 5147 // will). 5148 public Surface getSurface() { 5149 return mSurface; 5150 } 5151 5152 public boolean isCreating() { 5153 return false; 5154 } 5155 5156 public void addCallback(Callback callback) { 5157 } 5158 5159 public void removeCallback(Callback callback) { 5160 } 5161 5162 public void setFixedSize(int width, int height) { 5163 } 5164 5165 public void setSizeFromLayout() { 5166 } 5167 5168 public void setFormat(int format) { 5169 } 5170 5171 public void setType(int type) { 5172 } 5173 5174 public void setKeepScreenOn(boolean screenOn) { 5175 } 5176 5177 public Canvas lockCanvas() { 5178 return null; 5179 } 5180 5181 public Canvas lockCanvas(Rect dirty) { 5182 return null; 5183 } 5184 5185 public void unlockCanvasAndPost(Canvas canvas) { 5186 } 5187 public Rect getSurfaceFrame() { 5188 return null; 5189 } 5190 }; 5191 5192 static RunQueue getRunQueue() { 5193 RunQueue rq = sRunQueues.get(); 5194 if (rq != null) { 5195 return rq; 5196 } 5197 rq = new RunQueue(); 5198 sRunQueues.set(rq); 5199 return rq; 5200 } 5201 5202 /** 5203 * The run queue is used to enqueue pending work from Views when no Handler is 5204 * attached. The work is executed during the next call to performTraversals on 5205 * the thread. 5206 * @hide 5207 */ 5208 static final class RunQueue { 5209 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5210 5211 void post(Runnable action) { 5212 postDelayed(action, 0); 5213 } 5214 5215 void postDelayed(Runnable action, long delayMillis) { 5216 HandlerAction handlerAction = new HandlerAction(); 5217 handlerAction.action = action; 5218 handlerAction.delay = delayMillis; 5219 5220 synchronized (mActions) { 5221 mActions.add(handlerAction); 5222 } 5223 } 5224 5225 void removeCallbacks(Runnable action) { 5226 final HandlerAction handlerAction = new HandlerAction(); 5227 handlerAction.action = action; 5228 5229 synchronized (mActions) { 5230 final ArrayList<HandlerAction> actions = mActions; 5231 5232 while (actions.remove(handlerAction)) { 5233 // Keep going 5234 } 5235 } 5236 } 5237 5238 void executeActions(Handler handler) { 5239 synchronized (mActions) { 5240 final ArrayList<HandlerAction> actions = mActions; 5241 final int count = actions.size(); 5242 5243 for (int i = 0; i < count; i++) { 5244 final HandlerAction handlerAction = actions.get(i); 5245 handler.postDelayed(handlerAction.action, handlerAction.delay); 5246 } 5247 5248 actions.clear(); 5249 } 5250 } 5251 5252 private static class HandlerAction { 5253 Runnable action; 5254 long delay; 5255 5256 @Override 5257 public boolean equals(Object o) { 5258 if (this == o) return true; 5259 if (o == null || getClass() != o.getClass()) return false; 5260 5261 HandlerAction that = (HandlerAction) o; 5262 return !(action != null ? !action.equals(that.action) : that.action != null); 5263 5264 } 5265 5266 @Override 5267 public int hashCode() { 5268 int result = action != null ? action.hashCode() : 0; 5269 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5270 return result; 5271 } 5272 } 5273 } 5274 5275 /** 5276 * Class for managing the accessibility interaction connection 5277 * based on the global accessibility state. 5278 */ 5279 final class AccessibilityInteractionConnectionManager 5280 implements AccessibilityStateChangeListener { 5281 public void onAccessibilityStateChanged(boolean enabled) { 5282 if (enabled) { 5283 ensureConnection(); 5284 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5285 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5286 View focusedView = mView.findFocus(); 5287 if (focusedView != null && focusedView != mView) { 5288 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5289 } 5290 } 5291 } else { 5292 ensureNoConnection(); 5293 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5294 } 5295 } 5296 5297 public void ensureConnection() { 5298 if (mAttachInfo != null) { 5299 final boolean registered = 5300 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5301 if (!registered) { 5302 mAttachInfo.mAccessibilityWindowId = 5303 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5304 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5305 } 5306 } 5307 } 5308 5309 public void ensureNoConnection() { 5310 final boolean registered = 5311 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5312 if (registered) { 5313 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5314 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5315 } 5316 } 5317 } 5318 5319 /** 5320 * This class is an interface this ViewAncestor provides to the 5321 * AccessibilityManagerService to the latter can interact with 5322 * the view hierarchy in this ViewAncestor. 5323 */ 5324 static final class AccessibilityInteractionConnection 5325 extends IAccessibilityInteractionConnection.Stub { 5326 private final WeakReference<ViewRootImpl> mViewRootImpl; 5327 5328 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5329 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5330 } 5331 5332 @Override 5333 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5334 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5335 int interrogatingPid, long interrogatingTid) { 5336 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5337 if (viewRootImpl != null && viewRootImpl.mView != null) { 5338 viewRootImpl.getAccessibilityInteractionController() 5339 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5340 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5341 } else { 5342 // We cannot make the call and notify the caller so it does not wait. 5343 try { 5344 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5345 } catch (RemoteException re) { 5346 /* best effort - ignore */ 5347 } 5348 } 5349 } 5350 5351 @Override 5352 public void performAccessibilityAction(long accessibilityNodeId, int action, 5353 Bundle arguments, int interactionId, 5354 IAccessibilityInteractionConnectionCallback callback, int flags, 5355 int interogatingPid, long interrogatingTid) { 5356 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5357 if (viewRootImpl != null && viewRootImpl.mView != null) { 5358 viewRootImpl.getAccessibilityInteractionController() 5359 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5360 interactionId, callback, flags, interogatingPid, interrogatingTid); 5361 } else { 5362 // We cannot make the call and notify the caller so it does not wait. 5363 try { 5364 callback.setPerformAccessibilityActionResult(false, interactionId); 5365 } catch (RemoteException re) { 5366 /* best effort - ignore */ 5367 } 5368 } 5369 } 5370 5371 @Override 5372 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5373 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5374 int interrogatingPid, long interrogatingTid) { 5375 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5376 if (viewRootImpl != null && viewRootImpl.mView != null) { 5377 viewRootImpl.getAccessibilityInteractionController() 5378 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5379 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5380 } else { 5381 // We cannot make the call and notify the caller so it does not wait. 5382 try { 5383 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5384 } catch (RemoteException re) { 5385 /* best effort - ignore */ 5386 } 5387 } 5388 } 5389 5390 @Override 5391 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5392 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5393 int interrogatingPid, long interrogatingTid) { 5394 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5395 if (viewRootImpl != null && viewRootImpl.mView != null) { 5396 viewRootImpl.getAccessibilityInteractionController() 5397 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5398 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5399 } else { 5400 // We cannot make the call and notify the caller so it does not wait. 5401 try { 5402 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5403 } catch (RemoteException re) { 5404 /* best effort - ignore */ 5405 } 5406 } 5407 } 5408 5409 @Override 5410 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5411 IAccessibilityInteractionConnectionCallback callback, int flags, 5412 int interrogatingPid, long interrogatingTid) { 5413 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5414 if (viewRootImpl != null && viewRootImpl.mView != null) { 5415 viewRootImpl.getAccessibilityInteractionController() 5416 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5417 flags, interrogatingPid, interrogatingTid); 5418 } else { 5419 // We cannot make the call and notify the caller so it does not wait. 5420 try { 5421 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5422 } catch (RemoteException re) { 5423 /* best effort - ignore */ 5424 } 5425 } 5426 } 5427 5428 @Override 5429 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5430 IAccessibilityInteractionConnectionCallback callback, int flags, 5431 int interrogatingPid, long interrogatingTid) { 5432 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5433 if (viewRootImpl != null && viewRootImpl.mView != null) { 5434 viewRootImpl.getAccessibilityInteractionController() 5435 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5436 callback, flags, interrogatingPid, interrogatingTid); 5437 } else { 5438 // We cannot make the call and notify the caller so it does not wait. 5439 try { 5440 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5441 } catch (RemoteException re) { 5442 /* best effort - ignore */ 5443 } 5444 } 5445 } 5446 } 5447 5448 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5449 public View mSource; 5450 5451 public void run() { 5452 if (mSource != null) { 5453 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5454 mSource.resetAccessibilityStateChanged(); 5455 mSource = null; 5456 } 5457 } 5458 } 5459} 5460