ViewRootImpl.java revision 9911d18f0ebc9a68e41838471de507a04ea8fd9d
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 if (!mWillDrawSoon) { 893 scheduleTraversals(); 894 } 895 } else { 896 localDirty.setEmpty(); 897 } 898 899 return null; 900 } 901 902 void setStopped(boolean stopped) { 903 if (mStopped != stopped) { 904 mStopped = stopped; 905 if (!stopped) { 906 scheduleTraversals(); 907 } 908 } 909 } 910 911 public ViewParent getParent() { 912 return null; 913 } 914 915 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 916 if (child != mView) { 917 throw new RuntimeException("child is not mine, honest!"); 918 } 919 // Note: don't apply scroll offset, because we want to know its 920 // visibility in the virtual canvas being given to the view hierarchy. 921 return r.intersect(0, 0, mWidth, mHeight); 922 } 923 924 public void bringChildToFront(View child) { 925 } 926 927 int getHostVisibility() { 928 return mAppVisible ? mView.getVisibility() : View.GONE; 929 } 930 931 void disposeResizeBuffer() { 932 if (mResizeBuffer != null) { 933 mResizeBuffer.destroy(); 934 mResizeBuffer = null; 935 } 936 } 937 938 /** 939 * Add LayoutTransition to the list of transitions to be started in the next traversal. 940 * This list will be cleared after the transitions on the list are start()'ed. These 941 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 942 * happens during the layout phase of traversal, which we want to complete before any of the 943 * animations are started (because those animations may side-effect properties that layout 944 * depends upon, like the bounding rectangles of the affected views). So we add the transition 945 * to the list and it is started just prior to starting the drawing phase of traversal. 946 * 947 * @param transition The LayoutTransition to be started on the next traversal. 948 * 949 * @hide 950 */ 951 public void requestTransitionStart(LayoutTransition transition) { 952 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 953 if (mPendingTransitions == null) { 954 mPendingTransitions = new ArrayList<LayoutTransition>(); 955 } 956 mPendingTransitions.add(transition); 957 } 958 } 959 960 void scheduleTraversals() { 961 if (!mTraversalScheduled) { 962 mTraversalScheduled = true; 963 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 964 mChoreographer.postCallback( 965 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 966 scheduleConsumeBatchedInput(); 967 } 968 } 969 970 void unscheduleTraversals() { 971 if (mTraversalScheduled) { 972 mTraversalScheduled = false; 973 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 974 mChoreographer.removeCallbacks( 975 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 976 } 977 } 978 979 void doTraversal() { 980 if (mTraversalScheduled) { 981 mTraversalScheduled = false; 982 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 983 984 if (mProfile) { 985 Debug.startMethodTracing("ViewAncestor"); 986 } 987 988 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 989 try { 990 performTraversals(); 991 } finally { 992 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 993 } 994 995 if (mProfile) { 996 Debug.stopMethodTracing(); 997 mProfile = false; 998 } 999 } 1000 } 1001 1002 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1003 // Update window's global keep screen on flag: if a view has requested 1004 // that the screen be kept on, then it is always set; otherwise, it is 1005 // set to whatever the client last requested for the global state. 1006 if (mAttachInfo.mKeepScreenOn) { 1007 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1008 } else { 1009 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1010 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1011 } 1012 } 1013 1014 private boolean collectViewAttributes() { 1015 final View.AttachInfo attachInfo = mAttachInfo; 1016 if (attachInfo.mRecomputeGlobalAttributes) { 1017 //Log.i(TAG, "Computing view hierarchy attributes!"); 1018 attachInfo.mRecomputeGlobalAttributes = false; 1019 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1020 attachInfo.mKeepScreenOn = false; 1021 attachInfo.mSystemUiVisibility = 0; 1022 attachInfo.mHasSystemUiListeners = false; 1023 mView.dispatchCollectViewAttributes(attachInfo, 0); 1024 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1025 WindowManager.LayoutParams params = mWindowAttributes; 1026 if (attachInfo.mKeepScreenOn != oldScreenOn 1027 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1028 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1029 applyKeepScreenOnFlag(params); 1030 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1031 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1032 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1033 return true; 1034 } 1035 } 1036 return false; 1037 } 1038 1039 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1040 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1041 int childWidthMeasureSpec; 1042 int childHeightMeasureSpec; 1043 boolean windowSizeMayChange = false; 1044 1045 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1046 "Measuring " + host + " in display " + desiredWindowWidth 1047 + "x" + desiredWindowHeight + "..."); 1048 1049 boolean goodMeasure = false; 1050 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1051 // On large screens, we don't want to allow dialogs to just 1052 // stretch to fill the entire width of the screen to display 1053 // one line of text. First try doing the layout at a smaller 1054 // size to see if it will fit. 1055 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1056 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1057 int baseSize = 0; 1058 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1059 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1060 } 1061 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1062 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1063 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1064 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1065 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1066 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1067 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1068 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1069 goodMeasure = true; 1070 } else { 1071 // Didn't fit in that size... try expanding a bit. 1072 baseSize = (baseSize+desiredWindowWidth)/2; 1073 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1074 + baseSize); 1075 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1076 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1077 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1078 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1079 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1080 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1081 goodMeasure = true; 1082 } 1083 } 1084 } 1085 } 1086 1087 if (!goodMeasure) { 1088 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1089 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1090 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1091 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1092 windowSizeMayChange = true; 1093 } 1094 } 1095 1096 if (DBG) { 1097 System.out.println("======================================"); 1098 System.out.println("performTraversals -- after measure"); 1099 host.debug(); 1100 } 1101 1102 return windowSizeMayChange; 1103 } 1104 1105 private void performTraversals() { 1106 // cache mView since it is used so much below... 1107 final View host = mView; 1108 1109 if (DBG) { 1110 System.out.println("======================================"); 1111 System.out.println("performTraversals"); 1112 host.debug(); 1113 } 1114 1115 if (host == null || !mAdded) 1116 return; 1117 1118 mIsInTraversal = true; 1119 mWillDrawSoon = true; 1120 boolean windowSizeMayChange = false; 1121 boolean newSurface = false; 1122 boolean surfaceChanged = false; 1123 WindowManager.LayoutParams lp = mWindowAttributes; 1124 1125 int desiredWindowWidth; 1126 int desiredWindowHeight; 1127 1128 final View.AttachInfo attachInfo = mAttachInfo; 1129 1130 final int viewVisibility = getHostVisibility(); 1131 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1132 || mNewSurfaceNeeded; 1133 1134 WindowManager.LayoutParams params = null; 1135 if (mWindowAttributesChanged) { 1136 mWindowAttributesChanged = false; 1137 surfaceChanged = true; 1138 params = lp; 1139 } 1140 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1141 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1142 params = lp; 1143 mFullRedrawNeeded = true; 1144 mLayoutRequested = true; 1145 if (mLastInCompatMode) { 1146 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1147 mLastInCompatMode = false; 1148 } else { 1149 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1150 mLastInCompatMode = true; 1151 } 1152 } 1153 1154 mWindowAttributesChangesFlag = 0; 1155 1156 Rect frame = mWinFrame; 1157 if (mFirst) { 1158 mFullRedrawNeeded = true; 1159 mLayoutRequested = true; 1160 1161 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1162 // NOTE -- system code, won't try to do compat mode. 1163 Point size = new Point(); 1164 mDisplay.getRealSize(size); 1165 desiredWindowWidth = size.x; 1166 desiredWindowHeight = size.y; 1167 } else { 1168 DisplayMetrics packageMetrics = 1169 mView.getContext().getResources().getDisplayMetrics(); 1170 desiredWindowWidth = packageMetrics.widthPixels; 1171 desiredWindowHeight = packageMetrics.heightPixels; 1172 } 1173 1174 // For the very first time, tell the view hierarchy that it 1175 // is attached to the window. Note that at this point the surface 1176 // object is not initialized to its backing store, but soon it 1177 // will be (assuming the window is visible). 1178 attachInfo.mSurface = mSurface; 1179 // We used to use the following condition to choose 32 bits drawing caches: 1180 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1181 // However, windows are now always 32 bits by default, so choose 32 bits 1182 attachInfo.mUse32BitDrawingCache = true; 1183 attachInfo.mHasWindowFocus = false; 1184 attachInfo.mWindowVisibility = viewVisibility; 1185 attachInfo.mRecomputeGlobalAttributes = false; 1186 viewVisibilityChanged = false; 1187 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1188 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1189 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1190 host.dispatchAttachedToWindow(attachInfo, 0); 1191 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1192 host.fitSystemWindows(mFitSystemWindowsInsets); 1193 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1194 1195 } else { 1196 desiredWindowWidth = frame.width(); 1197 desiredWindowHeight = frame.height(); 1198 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1199 if (DEBUG_ORIENTATION) Log.v(TAG, 1200 "View " + host + " resized to: " + frame); 1201 mFullRedrawNeeded = true; 1202 mLayoutRequested = true; 1203 windowSizeMayChange = true; 1204 } 1205 } 1206 1207 if (viewVisibilityChanged) { 1208 attachInfo.mWindowVisibility = viewVisibility; 1209 host.dispatchWindowVisibilityChanged(viewVisibility); 1210 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1211 destroyHardwareResources(); 1212 } 1213 if (viewVisibility == View.GONE) { 1214 // After making a window gone, we will count it as being 1215 // shown for the first time the next time it gets focus. 1216 mHasHadWindowFocus = false; 1217 } 1218 } 1219 1220 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1221 getRunQueue().executeActions(attachInfo.mHandler); 1222 1223 boolean insetsChanged = false; 1224 1225 boolean layoutRequested = mLayoutRequested && !mStopped; 1226 if (layoutRequested) { 1227 1228 final Resources res = mView.getContext().getResources(); 1229 1230 if (mFirst) { 1231 // make sure touch mode code executes by setting cached value 1232 // to opposite of the added touch mode. 1233 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1234 ensureTouchModeLocally(mAddedTouchMode); 1235 } else { 1236 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1237 insetsChanged = true; 1238 } 1239 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1240 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1241 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1242 + mAttachInfo.mVisibleInsets); 1243 } 1244 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1245 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1246 windowSizeMayChange = true; 1247 1248 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1249 // NOTE -- system code, won't try to do compat mode. 1250 Point size = new Point(); 1251 mDisplay.getRealSize(size); 1252 desiredWindowWidth = size.x; 1253 desiredWindowHeight = size.y; 1254 } else { 1255 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1256 desiredWindowWidth = packageMetrics.widthPixels; 1257 desiredWindowHeight = packageMetrics.heightPixels; 1258 } 1259 } 1260 } 1261 1262 // Ask host how big it wants to be 1263 windowSizeMayChange |= measureHierarchy(host, lp, res, 1264 desiredWindowWidth, desiredWindowHeight); 1265 } 1266 1267 if (collectViewAttributes()) { 1268 params = lp; 1269 } 1270 if (attachInfo.mForceReportNewAttributes) { 1271 attachInfo.mForceReportNewAttributes = false; 1272 params = lp; 1273 } 1274 1275 if (mFirst || attachInfo.mViewVisibilityChanged) { 1276 attachInfo.mViewVisibilityChanged = false; 1277 int resizeMode = mSoftInputMode & 1278 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1279 // If we are in auto resize mode, then we need to determine 1280 // what mode to use now. 1281 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1282 final int N = attachInfo.mScrollContainers.size(); 1283 for (int i=0; i<N; i++) { 1284 if (attachInfo.mScrollContainers.get(i).isShown()) { 1285 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1286 } 1287 } 1288 if (resizeMode == 0) { 1289 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1290 } 1291 if ((lp.softInputMode & 1292 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1293 lp.softInputMode = (lp.softInputMode & 1294 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1295 resizeMode; 1296 params = lp; 1297 } 1298 } 1299 } 1300 1301 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1302 if (!PixelFormat.formatHasAlpha(params.format)) { 1303 params.format = PixelFormat.TRANSLUCENT; 1304 } 1305 } 1306 1307 if (mFitSystemWindowsRequested) { 1308 mFitSystemWindowsRequested = false; 1309 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1310 host.fitSystemWindows(mFitSystemWindowsInsets); 1311 if (mLayoutRequested) { 1312 // Short-circuit catching a new layout request here, so 1313 // we don't need to go through two layout passes when things 1314 // change due to fitting system windows, which can happen a lot. 1315 windowSizeMayChange |= measureHierarchy(host, lp, 1316 mView.getContext().getResources(), 1317 desiredWindowWidth, desiredWindowHeight); 1318 } 1319 } 1320 1321 if (layoutRequested) { 1322 // Clear this now, so that if anything requests a layout in the 1323 // rest of this function we will catch it and re-run a full 1324 // layout pass. 1325 mLayoutRequested = false; 1326 } 1327 1328 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1329 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1330 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1331 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1332 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1333 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1334 1335 final boolean computesInternalInsets = 1336 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1337 1338 boolean insetsPending = false; 1339 int relayoutResult = 0; 1340 1341 if (mFirst || windowShouldResize || insetsChanged || 1342 viewVisibilityChanged || params != null) { 1343 1344 if (viewVisibility == View.VISIBLE) { 1345 // If this window is giving internal insets to the window 1346 // manager, and it is being added or changing its visibility, 1347 // then we want to first give the window manager "fake" 1348 // insets to cause it to effectively ignore the content of 1349 // the window during layout. This avoids it briefly causing 1350 // other windows to resize/move based on the raw frame of the 1351 // window, waiting until we can finish laying out this window 1352 // and get back to the window manager with the ultimately 1353 // computed insets. 1354 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1355 } 1356 1357 if (mSurfaceHolder != null) { 1358 mSurfaceHolder.mSurfaceLock.lock(); 1359 mDrawingAllowed = true; 1360 } 1361 1362 boolean hwInitialized = false; 1363 boolean contentInsetsChanged = false; 1364 boolean visibleInsetsChanged; 1365 boolean hadSurface = mSurface.isValid(); 1366 1367 try { 1368 if (DEBUG_LAYOUT) { 1369 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1370 host.getMeasuredHeight() + ", params=" + params); 1371 } 1372 1373 final int surfaceGenerationId = mSurface.getGenerationId(); 1374 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1375 1376 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1377 + " content=" + mPendingContentInsets.toShortString() 1378 + " visible=" + mPendingVisibleInsets.toShortString() 1379 + " surface=" + mSurface); 1380 1381 if (mPendingConfiguration.seq != 0) { 1382 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1383 + mPendingConfiguration); 1384 updateConfiguration(mPendingConfiguration, !mFirst); 1385 mPendingConfiguration.seq = 0; 1386 } 1387 1388 contentInsetsChanged = !mPendingContentInsets.equals( 1389 mAttachInfo.mContentInsets); 1390 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1391 mAttachInfo.mVisibleInsets); 1392 if (contentInsetsChanged) { 1393 if (mWidth > 0 && mHeight > 0 && lp != null && 1394 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1395 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1396 mSurface != null && mSurface.isValid() && 1397 !mAttachInfo.mTurnOffWindowResizeAnim && 1398 mAttachInfo.mHardwareRenderer != null && 1399 mAttachInfo.mHardwareRenderer.isEnabled() && 1400 mAttachInfo.mHardwareRenderer.validate() && 1401 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1402 1403 disposeResizeBuffer(); 1404 1405 boolean completed = false; 1406 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1407 HardwareCanvas layerCanvas = null; 1408 try { 1409 if (mResizeBuffer == null) { 1410 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1411 mWidth, mHeight, false); 1412 } else if (mResizeBuffer.getWidth() != mWidth || 1413 mResizeBuffer.getHeight() != mHeight) { 1414 mResizeBuffer.resize(mWidth, mHeight); 1415 } 1416 // TODO: should handle create/resize failure 1417 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1418 layerCanvas.setViewport(mWidth, mHeight); 1419 layerCanvas.onPreDraw(null); 1420 final int restoreCount = layerCanvas.save(); 1421 1422 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1423 1424 int yoff; 1425 final boolean scrolling = mScroller != null 1426 && mScroller.computeScrollOffset(); 1427 if (scrolling) { 1428 yoff = mScroller.getCurrY(); 1429 mScroller.abortAnimation(); 1430 } else { 1431 yoff = mScrollY; 1432 } 1433 1434 layerCanvas.translate(0, -yoff); 1435 if (mTranslator != null) { 1436 mTranslator.translateCanvas(layerCanvas); 1437 } 1438 1439 mView.draw(layerCanvas); 1440 1441 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1442 1443 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1444 mResizeBufferDuration = mView.getResources().getInteger( 1445 com.android.internal.R.integer.config_mediumAnimTime); 1446 completed = true; 1447 1448 layerCanvas.restoreToCount(restoreCount); 1449 } catch (OutOfMemoryError e) { 1450 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1451 } finally { 1452 if (layerCanvas != null) { 1453 layerCanvas.onPostDraw(); 1454 } 1455 if (mResizeBuffer != null) { 1456 mResizeBuffer.end(hwRendererCanvas); 1457 if (!completed) { 1458 mResizeBuffer.destroy(); 1459 mResizeBuffer = null; 1460 } 1461 } 1462 } 1463 } 1464 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1465 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1466 + mAttachInfo.mContentInsets); 1467 } 1468 if (contentInsetsChanged || mLastSystemUiVisibility != 1469 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1470 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1471 mFitSystemWindowsRequested = false; 1472 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1473 host.fitSystemWindows(mFitSystemWindowsInsets); 1474 } 1475 if (visibleInsetsChanged) { 1476 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1477 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1478 + mAttachInfo.mVisibleInsets); 1479 } 1480 1481 if (!hadSurface) { 1482 if (mSurface.isValid()) { 1483 // If we are creating a new surface, then we need to 1484 // completely redraw it. Also, when we get to the 1485 // point of drawing it we will hold off and schedule 1486 // a new traversal instead. This is so we can tell the 1487 // window manager about all of the windows being displayed 1488 // before actually drawing them, so it can display then 1489 // all at once. 1490 newSurface = true; 1491 mFullRedrawNeeded = true; 1492 mPreviousTransparentRegion.setEmpty(); 1493 1494 if (mAttachInfo.mHardwareRenderer != null) { 1495 try { 1496 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1497 mHolder.getSurface()); 1498 } catch (Surface.OutOfResourcesException e) { 1499 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1500 try { 1501 if (!mWindowSession.outOfMemory(mWindow) && 1502 Process.myUid() != Process.SYSTEM_UID) { 1503 Slog.w(TAG, "No processes killed for memory; killing self"); 1504 Process.killProcess(Process.myPid()); 1505 } 1506 } catch (RemoteException ex) { 1507 } 1508 mLayoutRequested = true; // ask wm for a new surface next time. 1509 return; 1510 } 1511 } 1512 } 1513 } else if (!mSurface.isValid()) { 1514 // If the surface has been removed, then reset the scroll 1515 // positions. 1516 mLastScrolledFocus = null; 1517 mScrollY = mCurScrollY = 0; 1518 if (mScroller != null) { 1519 mScroller.abortAnimation(); 1520 } 1521 disposeResizeBuffer(); 1522 // Our surface is gone 1523 if (mAttachInfo.mHardwareRenderer != null && 1524 mAttachInfo.mHardwareRenderer.isEnabled()) { 1525 mAttachInfo.mHardwareRenderer.destroy(true); 1526 } 1527 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1528 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1529 mFullRedrawNeeded = true; 1530 try { 1531 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1532 } catch (Surface.OutOfResourcesException e) { 1533 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1534 try { 1535 if (!mWindowSession.outOfMemory(mWindow)) { 1536 Slog.w(TAG, "No processes killed for memory; killing self"); 1537 Process.killProcess(Process.myPid()); 1538 } 1539 } catch (RemoteException ex) { 1540 } 1541 mLayoutRequested = true; // ask wm for a new surface next time. 1542 return; 1543 } 1544 } 1545 } catch (RemoteException e) { 1546 } 1547 1548 if (DEBUG_ORIENTATION) Log.v( 1549 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1550 1551 attachInfo.mWindowLeft = frame.left; 1552 attachInfo.mWindowTop = frame.top; 1553 1554 // !!FIXME!! This next section handles the case where we did not get the 1555 // window size we asked for. We should avoid this by getting a maximum size from 1556 // the window session beforehand. 1557 if (mWidth != frame.width() || mHeight != frame.height()) { 1558 mWidth = frame.width(); 1559 mHeight = frame.height(); 1560 } 1561 1562 if (mSurfaceHolder != null) { 1563 // The app owns the surface; tell it about what is going on. 1564 if (mSurface.isValid()) { 1565 // XXX .copyFrom() doesn't work! 1566 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1567 mSurfaceHolder.mSurface = mSurface; 1568 } 1569 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1570 mSurfaceHolder.mSurfaceLock.unlock(); 1571 if (mSurface.isValid()) { 1572 if (!hadSurface) { 1573 mSurfaceHolder.ungetCallbacks(); 1574 1575 mIsCreating = true; 1576 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1577 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1578 if (callbacks != null) { 1579 for (SurfaceHolder.Callback c : callbacks) { 1580 c.surfaceCreated(mSurfaceHolder); 1581 } 1582 } 1583 surfaceChanged = true; 1584 } 1585 if (surfaceChanged) { 1586 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1587 lp.format, mWidth, mHeight); 1588 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1589 if (callbacks != null) { 1590 for (SurfaceHolder.Callback c : callbacks) { 1591 c.surfaceChanged(mSurfaceHolder, lp.format, 1592 mWidth, mHeight); 1593 } 1594 } 1595 } 1596 mIsCreating = false; 1597 } else if (hadSurface) { 1598 mSurfaceHolder.ungetCallbacks(); 1599 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1600 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1601 if (callbacks != null) { 1602 for (SurfaceHolder.Callback c : callbacks) { 1603 c.surfaceDestroyed(mSurfaceHolder); 1604 } 1605 } 1606 mSurfaceHolder.mSurfaceLock.lock(); 1607 try { 1608 mSurfaceHolder.mSurface = new Surface(); 1609 } finally { 1610 mSurfaceHolder.mSurfaceLock.unlock(); 1611 } 1612 } 1613 } 1614 1615 if (mAttachInfo.mHardwareRenderer != null && 1616 mAttachInfo.mHardwareRenderer.isEnabled()) { 1617 if (hwInitialized || windowShouldResize || 1618 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1619 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1620 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1621 if (!hwInitialized) { 1622 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1623 mFullRedrawNeeded = true; 1624 } 1625 } 1626 } 1627 1628 if (!mStopped) { 1629 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1630 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1631 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1632 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1633 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1634 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1635 1636 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1637 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1638 + " mHeight=" + mHeight 1639 + " measuredHeight=" + host.getMeasuredHeight() 1640 + " coveredInsetsChanged=" + contentInsetsChanged); 1641 1642 // Ask host how big it wants to be 1643 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1644 1645 // Implementation of weights from WindowManager.LayoutParams 1646 // We just grow the dimensions as needed and re-measure if 1647 // needs be 1648 int width = host.getMeasuredWidth(); 1649 int height = host.getMeasuredHeight(); 1650 boolean measureAgain = false; 1651 1652 if (lp.horizontalWeight > 0.0f) { 1653 width += (int) ((mWidth - width) * lp.horizontalWeight); 1654 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1655 MeasureSpec.EXACTLY); 1656 measureAgain = true; 1657 } 1658 if (lp.verticalWeight > 0.0f) { 1659 height += (int) ((mHeight - height) * lp.verticalWeight); 1660 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1661 MeasureSpec.EXACTLY); 1662 measureAgain = true; 1663 } 1664 1665 if (measureAgain) { 1666 if (DEBUG_LAYOUT) Log.v(TAG, 1667 "And hey let's measure once more: width=" + width 1668 + " height=" + height); 1669 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1670 } 1671 1672 layoutRequested = true; 1673 } 1674 } 1675 } else { 1676 // Not the first pass and no window/insets/visibility change but the window 1677 // may have moved and we need check that and if so to update the left and right 1678 // in the attach info. We translate only the window frame since on window move 1679 // the window manager tells us only for the new frame but the insets are the 1680 // same and we do not want to translate them more than once. 1681 1682 // TODO: Well, we are checking whether the frame has changed similarly 1683 // to how this is done for the insets. This is however incorrect since 1684 // the insets and the frame are translated. For example, the old frame 1685 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1686 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1687 // true since we are comparing a not translated value to a translated one. 1688 // This scenario is rare but we may want to fix that. 1689 1690 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1691 || attachInfo.mWindowTop != frame.top); 1692 if (windowMoved) { 1693 if (mTranslator != null) { 1694 mTranslator.translateRectInScreenToAppWinFrame(frame); 1695 } 1696 attachInfo.mWindowLeft = frame.left; 1697 attachInfo.mWindowTop = frame.top; 1698 } 1699 } 1700 1701 final boolean didLayout = layoutRequested && !mStopped; 1702 boolean triggerGlobalLayoutListener = didLayout 1703 || attachInfo.mRecomputeGlobalAttributes; 1704 if (didLayout) { 1705 performLayout(); 1706 1707 // By this point all views have been sized and positionned 1708 // We can compute the transparent area 1709 1710 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1711 // start out transparent 1712 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1713 host.getLocationInWindow(mTmpLocation); 1714 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1715 mTmpLocation[0] + host.mRight - host.mLeft, 1716 mTmpLocation[1] + host.mBottom - host.mTop); 1717 1718 host.gatherTransparentRegion(mTransparentRegion); 1719 if (mTranslator != null) { 1720 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1721 } 1722 1723 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1724 mPreviousTransparentRegion.set(mTransparentRegion); 1725 // reconfigure window manager 1726 try { 1727 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1728 } catch (RemoteException e) { 1729 } 1730 } 1731 } 1732 1733 if (DBG) { 1734 System.out.println("======================================"); 1735 System.out.println("performTraversals -- after setFrame"); 1736 host.debug(); 1737 } 1738 } 1739 1740 if (triggerGlobalLayoutListener) { 1741 attachInfo.mRecomputeGlobalAttributes = false; 1742 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1743 1744 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1745 postSendWindowContentChangedCallback(mView); 1746 } 1747 } 1748 1749 if (computesInternalInsets) { 1750 // Clear the original insets. 1751 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1752 insets.reset(); 1753 1754 // Compute new insets in place. 1755 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1756 1757 // Tell the window manager. 1758 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1759 mLastGivenInsets.set(insets); 1760 1761 // Translate insets to screen coordinates if needed. 1762 final Rect contentInsets; 1763 final Rect visibleInsets; 1764 final Region touchableRegion; 1765 if (mTranslator != null) { 1766 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1767 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1768 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1769 } else { 1770 contentInsets = insets.contentInsets; 1771 visibleInsets = insets.visibleInsets; 1772 touchableRegion = insets.touchableRegion; 1773 } 1774 1775 try { 1776 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1777 contentInsets, visibleInsets, touchableRegion); 1778 } catch (RemoteException e) { 1779 } 1780 } 1781 } 1782 1783 boolean skipDraw = false; 1784 1785 if (mFirst) { 1786 // handle first focus request 1787 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1788 + mView.hasFocus()); 1789 if (mView != null) { 1790 if (!mView.hasFocus()) { 1791 mView.requestFocus(View.FOCUS_FORWARD); 1792 mFocusedView = mRealFocusedView = mView.findFocus(); 1793 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1794 + mFocusedView); 1795 } else { 1796 mRealFocusedView = mView.findFocus(); 1797 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1798 + mRealFocusedView); 1799 } 1800 } 1801 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1802 // The first time we relayout the window, if the system is 1803 // doing window animations, we want to hold of on any future 1804 // draws until the animation is done. 1805 mWindowsAnimating = true; 1806 } 1807 } else if (mWindowsAnimating) { 1808 skipDraw = true; 1809 } 1810 1811 mFirst = false; 1812 mWillDrawSoon = false; 1813 mNewSurfaceNeeded = false; 1814 mViewVisibility = viewVisibility; 1815 1816 if (mAttachInfo.mHasWindowFocus) { 1817 final boolean imTarget = WindowManager.LayoutParams 1818 .mayUseInputMethod(mWindowAttributes.flags); 1819 if (imTarget != mLastWasImTarget) { 1820 mLastWasImTarget = imTarget; 1821 InputMethodManager imm = InputMethodManager.peekInstance(); 1822 if (imm != null && imTarget) { 1823 imm.startGettingWindowFocus(mView); 1824 imm.onWindowFocus(mView, mView.findFocus(), 1825 mWindowAttributes.softInputMode, 1826 !mHasHadWindowFocus, mWindowAttributes.flags); 1827 } 1828 } 1829 } 1830 1831 // Remember if we must report the next draw. 1832 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1833 mReportNextDraw = true; 1834 } 1835 1836 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1837 viewVisibility != View.VISIBLE; 1838 1839 if (!cancelDraw && !newSurface) { 1840 if (!skipDraw || mReportNextDraw) { 1841 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1842 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1843 mPendingTransitions.get(i).startChangingAnimations(); 1844 } 1845 mPendingTransitions.clear(); 1846 } 1847 1848 performDraw(); 1849 } 1850 } else { 1851 if (viewVisibility == View.VISIBLE) { 1852 // Try again 1853 scheduleTraversals(); 1854 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1855 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1856 mPendingTransitions.get(i).endChangingAnimations(); 1857 } 1858 mPendingTransitions.clear(); 1859 } 1860 } 1861 1862 mIsInTraversal = false; 1863 } 1864 1865 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1866 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1867 try { 1868 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1869 } finally { 1870 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1871 } 1872 } 1873 1874 private void performLayout() { 1875 mLayoutRequested = false; 1876 mScrollMayChange = true; 1877 1878 final View host = mView; 1879 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1880 Log.v(TAG, "Laying out " + host + " to (" + 1881 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1882 } 1883 1884 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1885 try { 1886 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1887 } finally { 1888 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1889 } 1890 } 1891 1892 public void requestTransparentRegion(View child) { 1893 // the test below should not fail unless someone is messing with us 1894 checkThread(); 1895 if (mView == child) { 1896 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1897 // Need to make sure we re-evaluate the window attributes next 1898 // time around, to ensure the window has the correct format. 1899 mWindowAttributesChanged = true; 1900 mWindowAttributesChangesFlag = 0; 1901 requestLayout(); 1902 } 1903 } 1904 1905 /** 1906 * Figures out the measure spec for the root view in a window based on it's 1907 * layout params. 1908 * 1909 * @param windowSize 1910 * The available width or height of the window 1911 * 1912 * @param rootDimension 1913 * The layout params for one dimension (width or height) of the 1914 * window. 1915 * 1916 * @return The measure spec to use to measure the root view. 1917 */ 1918 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1919 int measureSpec; 1920 switch (rootDimension) { 1921 1922 case ViewGroup.LayoutParams.MATCH_PARENT: 1923 // Window can't resize. Force root view to be windowSize. 1924 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1925 break; 1926 case ViewGroup.LayoutParams.WRAP_CONTENT: 1927 // Window can resize. Set max size for root view. 1928 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1929 break; 1930 default: 1931 // Window wants to be an exact size. Force root view to be that size. 1932 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1933 break; 1934 } 1935 return measureSpec; 1936 } 1937 1938 int mHardwareYOffset; 1939 int mResizeAlpha; 1940 final Paint mResizePaint = new Paint(); 1941 1942 public void onHardwarePreDraw(HardwareCanvas canvas) { 1943 canvas.translate(0, -mHardwareYOffset); 1944 } 1945 1946 public void onHardwarePostDraw(HardwareCanvas canvas) { 1947 if (mResizeBuffer != null) { 1948 mResizePaint.setAlpha(mResizeAlpha); 1949 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1950 } 1951 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1952 } 1953 1954 /** 1955 * @hide 1956 */ 1957 void outputDisplayList(View view) { 1958 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1959 DisplayList displayList = view.getDisplayList(); 1960 if (displayList != null) { 1961 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1962 } 1963 } 1964 } 1965 1966 /** 1967 * @see #PROPERTY_PROFILE_RENDERING 1968 */ 1969 private void profileRendering(boolean enabled) { 1970 if (mProfileRendering) { 1971 mRenderProfilingEnabled = enabled; 1972 if (mRenderProfiler == null) { 1973 mRenderProfiler = new Thread(new Runnable() { 1974 @Override 1975 public void run() { 1976 Log.d(TAG, "Starting profiling thread"); 1977 while (mRenderProfilingEnabled) { 1978 mAttachInfo.mHandler.post(new Runnable() { 1979 @Override 1980 public void run() { 1981 mDirty.set(0, 0, mWidth, mHeight); 1982 scheduleTraversals(); 1983 } 1984 }); 1985 try { 1986 // TODO: This should use vsync when we get an API 1987 Thread.sleep(15); 1988 } catch (InterruptedException e) { 1989 Log.d(TAG, "Exiting profiling thread"); 1990 } 1991 } 1992 } 1993 }, "Rendering Profiler"); 1994 mRenderProfiler.start(); 1995 } else { 1996 mRenderProfiler.interrupt(); 1997 mRenderProfiler = null; 1998 } 1999 } 2000 } 2001 2002 /** 2003 * Called from draw() when DEBUG_FPS is enabled 2004 */ 2005 private void trackFPS() { 2006 // Tracks frames per second drawn. First value in a series of draws may be bogus 2007 // because it down not account for the intervening idle time 2008 long nowTime = System.currentTimeMillis(); 2009 if (mFpsStartTime < 0) { 2010 mFpsStartTime = mFpsPrevTime = nowTime; 2011 mFpsNumFrames = 0; 2012 } else { 2013 ++mFpsNumFrames; 2014 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2015 long frameTime = nowTime - mFpsPrevTime; 2016 long totalTime = nowTime - mFpsStartTime; 2017 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2018 mFpsPrevTime = nowTime; 2019 if (totalTime > 1000) { 2020 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2021 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2022 mFpsStartTime = nowTime; 2023 mFpsNumFrames = 0; 2024 } 2025 } 2026 } 2027 2028 private void performDraw() { 2029 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2030 return; 2031 } 2032 2033 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2034 mFullRedrawNeeded = false; 2035 2036 mIsDrawing = true; 2037 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2038 try { 2039 draw(fullRedrawNeeded); 2040 } finally { 2041 mIsDrawing = false; 2042 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2043 } 2044 2045 if (mReportNextDraw) { 2046 mReportNextDraw = false; 2047 2048 if (LOCAL_LOGV) { 2049 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2050 } 2051 if (mSurfaceHolder != null && mSurface.isValid()) { 2052 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2053 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2054 if (callbacks != null) { 2055 for (SurfaceHolder.Callback c : callbacks) { 2056 if (c instanceof SurfaceHolder.Callback2) { 2057 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2058 mSurfaceHolder); 2059 } 2060 } 2061 } 2062 } 2063 try { 2064 mWindowSession.finishDrawing(mWindow); 2065 } catch (RemoteException e) { 2066 } 2067 } 2068 } 2069 2070 private void draw(boolean fullRedrawNeeded) { 2071 Surface surface = mSurface; 2072 if (surface == null || !surface.isValid()) { 2073 return; 2074 } 2075 2076 if (DEBUG_FPS) { 2077 trackFPS(); 2078 } 2079 2080 if (!sFirstDrawComplete) { 2081 synchronized (sFirstDrawHandlers) { 2082 sFirstDrawComplete = true; 2083 final int count = sFirstDrawHandlers.size(); 2084 for (int i = 0; i< count; i++) { 2085 mHandler.post(sFirstDrawHandlers.get(i)); 2086 } 2087 } 2088 } 2089 2090 scrollToRectOrFocus(null, false); 2091 2092 final AttachInfo attachInfo = mAttachInfo; 2093 if (attachInfo.mViewScrollChanged) { 2094 attachInfo.mViewScrollChanged = false; 2095 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2096 } 2097 2098 int yoff; 2099 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2100 if (animating) { 2101 yoff = mScroller.getCurrY(); 2102 } else { 2103 yoff = mScrollY; 2104 } 2105 if (mCurScrollY != yoff) { 2106 mCurScrollY = yoff; 2107 fullRedrawNeeded = true; 2108 } 2109 2110 final float appScale = attachInfo.mApplicationScale; 2111 final boolean scalingRequired = attachInfo.mScalingRequired; 2112 2113 int resizeAlpha = 0; 2114 if (mResizeBuffer != null) { 2115 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2116 if (deltaTime < mResizeBufferDuration) { 2117 float amt = deltaTime/(float) mResizeBufferDuration; 2118 amt = mResizeInterpolator.getInterpolation(amt); 2119 animating = true; 2120 resizeAlpha = 255 - (int)(amt*255); 2121 } else { 2122 disposeResizeBuffer(); 2123 } 2124 } 2125 2126 final Rect dirty = mDirty; 2127 if (mSurfaceHolder != null) { 2128 // The app owns the surface, we won't draw. 2129 dirty.setEmpty(); 2130 if (animating) { 2131 if (mScroller != null) { 2132 mScroller.abortAnimation(); 2133 } 2134 disposeResizeBuffer(); 2135 } 2136 return; 2137 } 2138 2139 if (fullRedrawNeeded) { 2140 attachInfo.mIgnoreDirtyState = true; 2141 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2142 } 2143 2144 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2145 Log.v(TAG, "Draw " + mView + "/" 2146 + mWindowAttributes.getTitle() 2147 + ": dirty={" + dirty.left + "," + dirty.top 2148 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2149 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2150 appScale + ", width=" + mWidth + ", height=" + mHeight); 2151 } 2152 2153 attachInfo.mTreeObserver.dispatchOnDraw(); 2154 2155 if (!dirty.isEmpty() || mIsAnimating) { 2156 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2157 // Draw with hardware renderer. 2158 mIsAnimating = false; 2159 mHardwareYOffset = yoff; 2160 mResizeAlpha = resizeAlpha; 2161 2162 mCurrentDirty.set(dirty); 2163 mCurrentDirty.union(mPreviousDirty); 2164 mPreviousDirty.set(dirty); 2165 dirty.setEmpty(); 2166 2167 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2168 animating ? null : mCurrentDirty)) { 2169 mPreviousDirty.set(0, 0, mWidth, mHeight); 2170 } 2171 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2172 return; 2173 } 2174 } 2175 2176 if (animating) { 2177 mFullRedrawNeeded = true; 2178 scheduleTraversals(); 2179 } 2180 } 2181 2182 /** 2183 * @return true if drawing was succesfull, false if an error occurred 2184 */ 2185 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2186 boolean scalingRequired, Rect dirty) { 2187 2188 // If we get here with a disabled & requested hardware renderer, something went 2189 // wrong (an invalidate posted right before we destroyed the hardware surface 2190 // for instance) so we should just bail out. Locking the surface with software 2191 // rendering at this point would lock it forever and prevent hardware renderer 2192 // from doing its job when it comes back. 2193 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2194 attachInfo.mHardwareRenderer.isRequested()) { 2195 mFullRedrawNeeded = true; 2196 scheduleTraversals(); 2197 return false; 2198 } 2199 2200 // Draw with software renderer. 2201 Canvas canvas; 2202 try { 2203 int left = dirty.left; 2204 int top = dirty.top; 2205 int right = dirty.right; 2206 int bottom = dirty.bottom; 2207 2208 canvas = mSurface.lockCanvas(dirty); 2209 2210 if (left != dirty.left || top != dirty.top || right != dirty.right || 2211 bottom != dirty.bottom) { 2212 attachInfo.mIgnoreDirtyState = true; 2213 } 2214 2215 // TODO: Do this in native 2216 canvas.setDensity(mDensity); 2217 } catch (Surface.OutOfResourcesException e) { 2218 Log.e(TAG, "OutOfResourcesException locking surface", e); 2219 try { 2220 if (!mWindowSession.outOfMemory(mWindow)) { 2221 Slog.w(TAG, "No processes killed for memory; killing self"); 2222 Process.killProcess(Process.myPid()); 2223 } 2224 } catch (RemoteException ex) { 2225 } 2226 mLayoutRequested = true; // ask wm for a new surface next time. 2227 return false; 2228 } catch (IllegalArgumentException e) { 2229 Log.e(TAG, "Could not lock surface", e); 2230 // Don't assume this is due to out of memory, it could be 2231 // something else, and if it is something else then we could 2232 // kill stuff (or ourself) for no reason. 2233 mLayoutRequested = true; // ask wm for a new surface next time. 2234 return false; 2235 } 2236 2237 try { 2238 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2239 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2240 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2241 //canvas.drawARGB(255, 255, 0, 0); 2242 } 2243 2244 // If this bitmap's format includes an alpha channel, we 2245 // need to clear it before drawing so that the child will 2246 // properly re-composite its drawing on a transparent 2247 // background. This automatically respects the clip/dirty region 2248 // or 2249 // If we are applying an offset, we need to clear the area 2250 // where the offset doesn't appear to avoid having garbage 2251 // left in the blank areas. 2252 if (!canvas.isOpaque() || yoff != 0) { 2253 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2254 } 2255 2256 dirty.setEmpty(); 2257 mIsAnimating = false; 2258 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2259 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2260 2261 if (DEBUG_DRAW) { 2262 Context cxt = mView.getContext(); 2263 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2264 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2265 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2266 } 2267 try { 2268 canvas.translate(0, -yoff); 2269 if (mTranslator != null) { 2270 mTranslator.translateCanvas(canvas); 2271 } 2272 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2273 attachInfo.mSetIgnoreDirtyState = false; 2274 2275 mView.draw(canvas); 2276 2277 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2278 } finally { 2279 if (!attachInfo.mSetIgnoreDirtyState) { 2280 // Only clear the flag if it was not set during the mView.draw() call 2281 attachInfo.mIgnoreDirtyState = false; 2282 } 2283 } 2284 } finally { 2285 try { 2286 surface.unlockCanvasAndPost(canvas); 2287 } catch (IllegalArgumentException e) { 2288 Log.e(TAG, "Could not unlock surface", e); 2289 mLayoutRequested = true; // ask wm for a new surface next time. 2290 //noinspection ReturnInsideFinallyBlock 2291 return false; 2292 } 2293 2294 if (LOCAL_LOGV) { 2295 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2296 } 2297 } 2298 return true; 2299 } 2300 2301 /** 2302 * We want to draw a highlight around the current accessibility focused. 2303 * Since adding a style for all possible view is not a viable option we 2304 * have this specialized drawing method. 2305 * 2306 * Note: We are doing this here to be able to draw the highlight for 2307 * virtual views in addition to real ones. 2308 * 2309 * @param canvas The canvas on which to draw. 2310 */ 2311 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2312 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2313 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2314 return; 2315 } 2316 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2317 return; 2318 } 2319 Drawable drawable = getAccessibilityFocusedDrawable(); 2320 if (drawable == null) { 2321 return; 2322 } 2323 AccessibilityNodeProvider provider = 2324 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2325 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2326 if (provider == null) { 2327 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2328 } else { 2329 if (mAccessibilityFocusedVirtualView == null) { 2330 return; 2331 } 2332 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2333 } 2334 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2335 drawable.setBounds(bounds); 2336 drawable.draw(canvas); 2337 } 2338 2339 private Drawable getAccessibilityFocusedDrawable() { 2340 if (mAttachInfo != null) { 2341 // Lazily load the accessibility focus drawable. 2342 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2343 TypedValue value = new TypedValue(); 2344 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2345 R.attr.accessibilityFocusedDrawable, value, true); 2346 if (resolved) { 2347 mAttachInfo.mAccessibilityFocusDrawable = 2348 mView.mContext.getResources().getDrawable(value.resourceId); 2349 } 2350 } 2351 return mAttachInfo.mAccessibilityFocusDrawable; 2352 } 2353 return null; 2354 } 2355 2356 void invalidateDisplayLists() { 2357 final ArrayList<DisplayList> displayLists = mDisplayLists; 2358 final int count = displayLists.size(); 2359 2360 for (int i = 0; i < count; i++) { 2361 final DisplayList displayList = displayLists.get(i); 2362 displayList.invalidate(); 2363 displayList.clear(); 2364 } 2365 2366 displayLists.clear(); 2367 } 2368 2369 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2370 final View.AttachInfo attachInfo = mAttachInfo; 2371 final Rect ci = attachInfo.mContentInsets; 2372 final Rect vi = attachInfo.mVisibleInsets; 2373 int scrollY = 0; 2374 boolean handled = false; 2375 2376 if (vi.left > ci.left || vi.top > ci.top 2377 || vi.right > ci.right || vi.bottom > ci.bottom) { 2378 // We'll assume that we aren't going to change the scroll 2379 // offset, since we want to avoid that unless it is actually 2380 // going to make the focus visible... otherwise we scroll 2381 // all over the place. 2382 scrollY = mScrollY; 2383 // We can be called for two different situations: during a draw, 2384 // to update the scroll position if the focus has changed (in which 2385 // case 'rectangle' is null), or in response to a 2386 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2387 // is non-null and we just want to scroll to whatever that 2388 // rectangle is). 2389 View focus = mRealFocusedView; 2390 2391 // When in touch mode, focus points to the previously focused view, 2392 // which may have been removed from the view hierarchy. The following 2393 // line checks whether the view is still in our hierarchy. 2394 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2395 mRealFocusedView = null; 2396 return false; 2397 } 2398 2399 if (focus != mLastScrolledFocus) { 2400 // If the focus has changed, then ignore any requests to scroll 2401 // to a rectangle; first we want to make sure the entire focus 2402 // view is visible. 2403 rectangle = null; 2404 } 2405 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2406 + " rectangle=" + rectangle + " ci=" + ci 2407 + " vi=" + vi); 2408 if (focus == mLastScrolledFocus && !mScrollMayChange 2409 && rectangle == null) { 2410 // Optimization: if the focus hasn't changed since last 2411 // time, and no layout has happened, then just leave things 2412 // as they are. 2413 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2414 + mScrollY + " vi=" + vi.toShortString()); 2415 } else if (focus != null) { 2416 // We need to determine if the currently focused view is 2417 // within the visible part of the window and, if not, apply 2418 // a pan so it can be seen. 2419 mLastScrolledFocus = focus; 2420 mScrollMayChange = false; 2421 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2422 // Try to find the rectangle from the focus view. 2423 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2424 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2425 + mView.getWidth() + " h=" + mView.getHeight() 2426 + " ci=" + ci.toShortString() 2427 + " vi=" + vi.toShortString()); 2428 if (rectangle == null) { 2429 focus.getFocusedRect(mTempRect); 2430 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2431 + ": focusRect=" + mTempRect.toShortString()); 2432 if (mView instanceof ViewGroup) { 2433 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2434 focus, mTempRect); 2435 } 2436 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2437 "Focus in window: focusRect=" 2438 + mTempRect.toShortString() 2439 + " visRect=" + mVisRect.toShortString()); 2440 } else { 2441 mTempRect.set(rectangle); 2442 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2443 "Request scroll to rect: " 2444 + mTempRect.toShortString() 2445 + " visRect=" + mVisRect.toShortString()); 2446 } 2447 if (mTempRect.intersect(mVisRect)) { 2448 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2449 "Focus window visible rect: " 2450 + mTempRect.toShortString()); 2451 if (mTempRect.height() > 2452 (mView.getHeight()-vi.top-vi.bottom)) { 2453 // If the focus simply is not going to fit, then 2454 // best is probably just to leave things as-is. 2455 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2456 "Too tall; leaving scrollY=" + scrollY); 2457 } else if ((mTempRect.top-scrollY) < vi.top) { 2458 scrollY -= vi.top - (mTempRect.top-scrollY); 2459 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2460 "Top covered; scrollY=" + scrollY); 2461 } else if ((mTempRect.bottom-scrollY) 2462 > (mView.getHeight()-vi.bottom)) { 2463 scrollY += (mTempRect.bottom-scrollY) 2464 - (mView.getHeight()-vi.bottom); 2465 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2466 "Bottom covered; scrollY=" + scrollY); 2467 } 2468 handled = true; 2469 } 2470 } 2471 } 2472 } 2473 2474 if (scrollY != mScrollY) { 2475 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2476 + mScrollY + " , new=" + scrollY); 2477 if (!immediate && mResizeBuffer == null) { 2478 if (mScroller == null) { 2479 mScroller = new Scroller(mView.getContext()); 2480 } 2481 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2482 } else if (mScroller != null) { 2483 mScroller.abortAnimation(); 2484 } 2485 mScrollY = scrollY; 2486 } 2487 2488 return handled; 2489 } 2490 2491 /** 2492 * @hide 2493 */ 2494 public View getAccessibilityFocusedHost() { 2495 return mAccessibilityFocusedHost; 2496 } 2497 2498 /** 2499 * @hide 2500 */ 2501 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2502 return mAccessibilityFocusedVirtualView; 2503 } 2504 2505 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2506 // If we have a virtual view with accessibility focus we need 2507 // to clear the focus and invalidate the virtual view bounds. 2508 if (mAccessibilityFocusedVirtualView != null) { 2509 2510 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2511 View focusHost = mAccessibilityFocusedHost; 2512 focusHost.clearAccessibilityFocusNoCallbacks(); 2513 2514 // Wipe the state of the current accessibility focus since 2515 // the call into the provider to clear accessibility focus 2516 // will fire an accessibility event which will end up calling 2517 // this method and we want to have clean state when this 2518 // invocation happens. 2519 mAccessibilityFocusedHost = null; 2520 mAccessibilityFocusedVirtualView = null; 2521 2522 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2523 if (provider != null) { 2524 // Invalidate the area of the cleared accessibility focus. 2525 focusNode.getBoundsInParent(mTempRect); 2526 focusHost.invalidate(mTempRect); 2527 // Clear accessibility focus in the virtual node. 2528 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2529 focusNode.getSourceNodeId()); 2530 provider.performAction(virtualNodeId, 2531 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2532 } 2533 focusNode.recycle(); 2534 } 2535 if (mAccessibilityFocusedHost != null) { 2536 // Clear accessibility focus in the view. 2537 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2538 } 2539 2540 // Set the new focus host and node. 2541 mAccessibilityFocusedHost = view; 2542 mAccessibilityFocusedVirtualView = node; 2543 } 2544 2545 public void requestChildFocus(View child, View focused) { 2546 checkThread(); 2547 2548 if (DEBUG_INPUT_RESIZE) { 2549 Log.v(TAG, "Request child focus: focus now " + focused); 2550 } 2551 2552 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2553 scheduleTraversals(); 2554 2555 mFocusedView = mRealFocusedView = focused; 2556 } 2557 2558 public void clearChildFocus(View child) { 2559 checkThread(); 2560 2561 if (DEBUG_INPUT_RESIZE) { 2562 Log.v(TAG, "Clearing child focus"); 2563 } 2564 2565 mOldFocusedView = mFocusedView; 2566 2567 // Invoke the listener only if there is no view to take focus 2568 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2569 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2570 } 2571 2572 mFocusedView = mRealFocusedView = null; 2573 } 2574 2575 @Override 2576 public ViewParent getParentForAccessibility() { 2577 return null; 2578 } 2579 2580 public void focusableViewAvailable(View v) { 2581 checkThread(); 2582 if (mView != null) { 2583 if (!mView.hasFocus()) { 2584 v.requestFocus(); 2585 } else { 2586 // the one case where will transfer focus away from the current one 2587 // is if the current view is a view group that prefers to give focus 2588 // to its children first AND the view is a descendant of it. 2589 mFocusedView = mView.findFocus(); 2590 boolean descendantsHaveDibsOnFocus = 2591 (mFocusedView instanceof ViewGroup) && 2592 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2593 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2594 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2595 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2596 v.requestFocus(); 2597 } 2598 } 2599 } 2600 } 2601 2602 public void recomputeViewAttributes(View child) { 2603 checkThread(); 2604 if (mView == child) { 2605 mAttachInfo.mRecomputeGlobalAttributes = true; 2606 if (!mWillDrawSoon) { 2607 scheduleTraversals(); 2608 } 2609 } 2610 } 2611 2612 void dispatchDetachedFromWindow() { 2613 if (mView != null && mView.mAttachInfo != null) { 2614 if (mAttachInfo.mHardwareRenderer != null && 2615 mAttachInfo.mHardwareRenderer.isEnabled()) { 2616 mAttachInfo.mHardwareRenderer.validate(); 2617 } 2618 mView.dispatchDetachedFromWindow(); 2619 } 2620 2621 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2622 mAccessibilityManager.removeAccessibilityStateChangeListener( 2623 mAccessibilityInteractionConnectionManager); 2624 removeSendWindowContentChangedCallback(); 2625 2626 destroyHardwareRenderer(); 2627 2628 setAccessibilityFocus(null, null); 2629 2630 mView = null; 2631 mAttachInfo.mRootView = null; 2632 mAttachInfo.mSurface = null; 2633 2634 mSurface.release(); 2635 2636 if (mInputQueueCallback != null && mInputQueue != null) { 2637 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2638 mInputQueueCallback = null; 2639 mInputQueue = null; 2640 } else if (mInputEventReceiver != null) { 2641 mInputEventReceiver.dispose(); 2642 mInputEventReceiver = null; 2643 } 2644 try { 2645 mWindowSession.remove(mWindow); 2646 } catch (RemoteException e) { 2647 } 2648 2649 // Dispose the input channel after removing the window so the Window Manager 2650 // doesn't interpret the input channel being closed as an abnormal termination. 2651 if (mInputChannel != null) { 2652 mInputChannel.dispose(); 2653 mInputChannel = null; 2654 } 2655 2656 unscheduleTraversals(); 2657 } 2658 2659 void updateConfiguration(Configuration config, boolean force) { 2660 if (DEBUG_CONFIGURATION) Log.v(TAG, 2661 "Applying new config to window " 2662 + mWindowAttributes.getTitle() 2663 + ": " + config); 2664 2665 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2666 if (ci != null) { 2667 config = new Configuration(config); 2668 ci.applyToConfiguration(mNoncompatDensity, config); 2669 } 2670 2671 synchronized (sConfigCallbacks) { 2672 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2673 sConfigCallbacks.get(i).onConfigurationChanged(config); 2674 } 2675 } 2676 if (mView != null) { 2677 // At this point the resources have been updated to 2678 // have the most recent config, whatever that is. Use 2679 // the one in them which may be newer. 2680 config = mView.getResources().getConfiguration(); 2681 if (force || mLastConfiguration.diff(config) != 0) { 2682 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2683 final int currentLayoutDirection = config.getLayoutDirection(); 2684 mLastConfiguration.setTo(config); 2685 if (lastLayoutDirection != currentLayoutDirection) { 2686 mView.setLayoutDirection(currentLayoutDirection); 2687 } 2688 mView.dispatchConfigurationChanged(config); 2689 } 2690 } 2691 } 2692 2693 /** 2694 * Return true if child is an ancestor of parent, (or equal to the parent). 2695 */ 2696 public static boolean isViewDescendantOf(View child, View parent) { 2697 if (child == parent) { 2698 return true; 2699 } 2700 2701 final ViewParent theParent = child.getParent(); 2702 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2703 } 2704 2705 private static void forceLayout(View view) { 2706 view.forceLayout(); 2707 if (view instanceof ViewGroup) { 2708 ViewGroup group = (ViewGroup) view; 2709 final int count = group.getChildCount(); 2710 for (int i = 0; i < count; i++) { 2711 forceLayout(group.getChildAt(i)); 2712 } 2713 } 2714 } 2715 2716 private final static int MSG_INVALIDATE = 1; 2717 private final static int MSG_INVALIDATE_RECT = 2; 2718 private final static int MSG_DIE = 3; 2719 private final static int MSG_RESIZED = 4; 2720 private final static int MSG_RESIZED_REPORT = 5; 2721 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2722 private final static int MSG_DISPATCH_KEY = 7; 2723 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2724 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2725 private final static int MSG_IME_FINISHED_EVENT = 10; 2726 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2727 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2728 private final static int MSG_CHECK_FOCUS = 13; 2729 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2730 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2731 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2732 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2733 private final static int MSG_UPDATE_CONFIGURATION = 18; 2734 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2735 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2736 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2737 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2738 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2739 private final static int MSG_INVALIDATE_WORLD = 24; 2740 private final static int MSG_WINDOW_MOVED = 25; 2741 2742 final class ViewRootHandler extends Handler { 2743 @Override 2744 public String getMessageName(Message message) { 2745 switch (message.what) { 2746 case MSG_INVALIDATE: 2747 return "MSG_INVALIDATE"; 2748 case MSG_INVALIDATE_RECT: 2749 return "MSG_INVALIDATE_RECT"; 2750 case MSG_DIE: 2751 return "MSG_DIE"; 2752 case MSG_RESIZED: 2753 return "MSG_RESIZED"; 2754 case MSG_RESIZED_REPORT: 2755 return "MSG_RESIZED_REPORT"; 2756 case MSG_WINDOW_FOCUS_CHANGED: 2757 return "MSG_WINDOW_FOCUS_CHANGED"; 2758 case MSG_DISPATCH_KEY: 2759 return "MSG_DISPATCH_KEY"; 2760 case MSG_DISPATCH_APP_VISIBILITY: 2761 return "MSG_DISPATCH_APP_VISIBILITY"; 2762 case MSG_DISPATCH_GET_NEW_SURFACE: 2763 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2764 case MSG_IME_FINISHED_EVENT: 2765 return "MSG_IME_FINISHED_EVENT"; 2766 case MSG_DISPATCH_KEY_FROM_IME: 2767 return "MSG_DISPATCH_KEY_FROM_IME"; 2768 case MSG_FINISH_INPUT_CONNECTION: 2769 return "MSG_FINISH_INPUT_CONNECTION"; 2770 case MSG_CHECK_FOCUS: 2771 return "MSG_CHECK_FOCUS"; 2772 case MSG_CLOSE_SYSTEM_DIALOGS: 2773 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2774 case MSG_DISPATCH_DRAG_EVENT: 2775 return "MSG_DISPATCH_DRAG_EVENT"; 2776 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2777 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2778 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2779 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2780 case MSG_UPDATE_CONFIGURATION: 2781 return "MSG_UPDATE_CONFIGURATION"; 2782 case MSG_PROCESS_INPUT_EVENTS: 2783 return "MSG_PROCESS_INPUT_EVENTS"; 2784 case MSG_DISPATCH_SCREEN_STATE: 2785 return "MSG_DISPATCH_SCREEN_STATE"; 2786 case MSG_INVALIDATE_DISPLAY_LIST: 2787 return "MSG_INVALIDATE_DISPLAY_LIST"; 2788 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2789 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2790 case MSG_DISPATCH_DONE_ANIMATING: 2791 return "MSG_DISPATCH_DONE_ANIMATING"; 2792 case MSG_WINDOW_MOVED: 2793 return "MSG_WINDOW_MOVED"; 2794 } 2795 return super.getMessageName(message); 2796 } 2797 2798 @Override 2799 public void handleMessage(Message msg) { 2800 switch (msg.what) { 2801 case MSG_INVALIDATE: 2802 ((View) msg.obj).invalidate(); 2803 break; 2804 case MSG_INVALIDATE_RECT: 2805 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2806 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2807 info.release(); 2808 break; 2809 case MSG_IME_FINISHED_EVENT: 2810 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2811 break; 2812 case MSG_PROCESS_INPUT_EVENTS: 2813 mProcessInputEventsScheduled = false; 2814 doProcessInputEvents(); 2815 break; 2816 case MSG_DISPATCH_APP_VISIBILITY: 2817 handleAppVisibility(msg.arg1 != 0); 2818 break; 2819 case MSG_DISPATCH_GET_NEW_SURFACE: 2820 handleGetNewSurface(); 2821 break; 2822 case MSG_RESIZED: { 2823 // Recycled in the fall through... 2824 SomeArgs args = (SomeArgs) msg.obj; 2825 if (mWinFrame.equals(args.arg1) 2826 && mPendingContentInsets.equals(args.arg2) 2827 && mPendingVisibleInsets.equals(args.arg3) 2828 && args.arg4 == null) { 2829 break; 2830 } 2831 } // fall through... 2832 case MSG_RESIZED_REPORT: 2833 if (mAdded) { 2834 SomeArgs args = (SomeArgs) msg.obj; 2835 2836 Configuration config = (Configuration) args.arg4; 2837 if (config != null) { 2838 updateConfiguration(config, false); 2839 } 2840 2841 mWinFrame.set((Rect) args.arg1); 2842 mPendingContentInsets.set((Rect) args.arg2); 2843 mPendingVisibleInsets.set((Rect) args.arg3); 2844 2845 args.recycle(); 2846 2847 if (msg.what == MSG_RESIZED_REPORT) { 2848 mReportNextDraw = true; 2849 } 2850 2851 if (mView != null) { 2852 forceLayout(mView); 2853 } 2854 2855 requestLayout(); 2856 } 2857 break; 2858 case MSG_WINDOW_MOVED: 2859 if (mAdded) { 2860 final int w = mWinFrame.width(); 2861 final int h = mWinFrame.height(); 2862 final int l = msg.arg1; 2863 final int t = msg.arg2; 2864 mWinFrame.left = l; 2865 mWinFrame.right = l + w; 2866 mWinFrame.top = t; 2867 mWinFrame.bottom = t + h; 2868 2869 if (mView != null) { 2870 forceLayout(mView); 2871 } 2872 requestLayout(); 2873 } 2874 break; 2875 case MSG_WINDOW_FOCUS_CHANGED: { 2876 if (mAdded) { 2877 boolean hasWindowFocus = msg.arg1 != 0; 2878 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2879 2880 profileRendering(hasWindowFocus); 2881 2882 if (hasWindowFocus) { 2883 boolean inTouchMode = msg.arg2 != 0; 2884 ensureTouchModeLocally(inTouchMode); 2885 2886 if (mAttachInfo.mHardwareRenderer != null && 2887 mSurface != null && mSurface.isValid()) { 2888 mFullRedrawNeeded = true; 2889 try { 2890 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2891 mWidth, mHeight, mHolder.getSurface())) { 2892 mFullRedrawNeeded = true; 2893 } 2894 } catch (Surface.OutOfResourcesException e) { 2895 Log.e(TAG, "OutOfResourcesException locking surface", e); 2896 try { 2897 if (!mWindowSession.outOfMemory(mWindow)) { 2898 Slog.w(TAG, "No processes killed for memory; killing self"); 2899 Process.killProcess(Process.myPid()); 2900 } 2901 } catch (RemoteException ex) { 2902 } 2903 // Retry in a bit. 2904 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2905 return; 2906 } 2907 } 2908 } 2909 2910 mLastWasImTarget = WindowManager.LayoutParams 2911 .mayUseInputMethod(mWindowAttributes.flags); 2912 2913 InputMethodManager imm = InputMethodManager.peekInstance(); 2914 if (mView != null) { 2915 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2916 imm.startGettingWindowFocus(mView); 2917 } 2918 mAttachInfo.mKeyDispatchState.reset(); 2919 mView.dispatchWindowFocusChanged(hasWindowFocus); 2920 } 2921 2922 // Note: must be done after the focus change callbacks, 2923 // so all of the view state is set up correctly. 2924 if (hasWindowFocus) { 2925 if (imm != null && mLastWasImTarget) { 2926 imm.onWindowFocus(mView, mView.findFocus(), 2927 mWindowAttributes.softInputMode, 2928 !mHasHadWindowFocus, mWindowAttributes.flags); 2929 } 2930 // Clear the forward bit. We can just do this directly, since 2931 // the window manager doesn't care about it. 2932 mWindowAttributes.softInputMode &= 2933 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2934 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2935 .softInputMode &= 2936 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2937 mHasHadWindowFocus = true; 2938 } 2939 2940 setAccessibilityFocus(null, null); 2941 2942 if (mView != null && mAccessibilityManager.isEnabled()) { 2943 if (hasWindowFocus) { 2944 mView.sendAccessibilityEvent( 2945 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2946 } 2947 } 2948 } 2949 } break; 2950 case MSG_DIE: 2951 doDie(); 2952 break; 2953 case MSG_DISPATCH_KEY: { 2954 KeyEvent event = (KeyEvent)msg.obj; 2955 enqueueInputEvent(event, null, 0, true); 2956 } break; 2957 case MSG_DISPATCH_KEY_FROM_IME: { 2958 if (LOCAL_LOGV) Log.v( 2959 TAG, "Dispatching key " 2960 + msg.obj + " from IME to " + mView); 2961 KeyEvent event = (KeyEvent)msg.obj; 2962 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2963 // The IME is trying to say this event is from the 2964 // system! Bad bad bad! 2965 //noinspection UnusedAssignment 2966 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2967 } 2968 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2969 } break; 2970 case MSG_FINISH_INPUT_CONNECTION: { 2971 InputMethodManager imm = InputMethodManager.peekInstance(); 2972 if (imm != null) { 2973 imm.reportFinishInputConnection((InputConnection)msg.obj); 2974 } 2975 } break; 2976 case MSG_CHECK_FOCUS: { 2977 InputMethodManager imm = InputMethodManager.peekInstance(); 2978 if (imm != null) { 2979 imm.checkFocus(); 2980 } 2981 } break; 2982 case MSG_CLOSE_SYSTEM_DIALOGS: { 2983 if (mView != null) { 2984 mView.onCloseSystemDialogs((String)msg.obj); 2985 } 2986 } break; 2987 case MSG_DISPATCH_DRAG_EVENT: 2988 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2989 DragEvent event = (DragEvent)msg.obj; 2990 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2991 handleDragEvent(event); 2992 } break; 2993 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2994 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2995 } break; 2996 case MSG_UPDATE_CONFIGURATION: { 2997 Configuration config = (Configuration)msg.obj; 2998 if (config.isOtherSeqNewer(mLastConfiguration)) { 2999 config = mLastConfiguration; 3000 } 3001 updateConfiguration(config, false); 3002 } break; 3003 case MSG_DISPATCH_SCREEN_STATE: { 3004 if (mView != null) { 3005 handleScreenStateChange(msg.arg1 == 1); 3006 } 3007 } break; 3008 case MSG_INVALIDATE_DISPLAY_LIST: { 3009 invalidateDisplayLists(); 3010 } break; 3011 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3012 setAccessibilityFocus(null, null); 3013 } break; 3014 case MSG_DISPATCH_DONE_ANIMATING: { 3015 handleDispatchDoneAnimating(); 3016 } break; 3017 case MSG_INVALIDATE_WORLD: { 3018 if (mView != null) { 3019 invalidateWorld(mView); 3020 } 3021 } break; 3022 } 3023 } 3024 } 3025 3026 final ViewRootHandler mHandler = new ViewRootHandler(); 3027 3028 /** 3029 * Something in the current window tells us we need to change the touch mode. For 3030 * example, we are not in touch mode, and the user touches the screen. 3031 * 3032 * If the touch mode has changed, tell the window manager, and handle it locally. 3033 * 3034 * @param inTouchMode Whether we want to be in touch mode. 3035 * @return True if the touch mode changed and focus changed was changed as a result 3036 */ 3037 boolean ensureTouchMode(boolean inTouchMode) { 3038 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3039 + "touch mode is " + mAttachInfo.mInTouchMode); 3040 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3041 3042 // tell the window manager 3043 try { 3044 mWindowSession.setInTouchMode(inTouchMode); 3045 } catch (RemoteException e) { 3046 throw new RuntimeException(e); 3047 } 3048 3049 // handle the change 3050 return ensureTouchModeLocally(inTouchMode); 3051 } 3052 3053 /** 3054 * Ensure that the touch mode for this window is set, and if it is changing, 3055 * take the appropriate action. 3056 * @param inTouchMode Whether we want to be in touch mode. 3057 * @return True if the touch mode changed and focus changed was changed as a result 3058 */ 3059 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3060 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3061 + "touch mode is " + mAttachInfo.mInTouchMode); 3062 3063 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3064 3065 mAttachInfo.mInTouchMode = inTouchMode; 3066 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3067 3068 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3069 } 3070 3071 private boolean enterTouchMode() { 3072 if (mView != null) { 3073 if (mView.hasFocus()) { 3074 // note: not relying on mFocusedView here because this could 3075 // be when the window is first being added, and mFocused isn't 3076 // set yet. 3077 final View focused = mView.findFocus(); 3078 if (focused != null && !focused.isFocusableInTouchMode()) { 3079 3080 final ViewGroup ancestorToTakeFocus = 3081 findAncestorToTakeFocusInTouchMode(focused); 3082 if (ancestorToTakeFocus != null) { 3083 // there is an ancestor that wants focus after its descendants that 3084 // is focusable in touch mode.. give it focus 3085 return ancestorToTakeFocus.requestFocus(); 3086 } else { 3087 // nothing appropriate to have focus in touch mode, clear it out 3088 mView.unFocus(); 3089 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3090 mFocusedView = null; 3091 mOldFocusedView = null; 3092 return true; 3093 } 3094 } 3095 } 3096 } 3097 return false; 3098 } 3099 3100 /** 3101 * Find an ancestor of focused that wants focus after its descendants and is 3102 * focusable in touch mode. 3103 * @param focused The currently focused view. 3104 * @return An appropriate view, or null if no such view exists. 3105 */ 3106 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3107 ViewParent parent = focused.getParent(); 3108 while (parent instanceof ViewGroup) { 3109 final ViewGroup vgParent = (ViewGroup) parent; 3110 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3111 && vgParent.isFocusableInTouchMode()) { 3112 return vgParent; 3113 } 3114 if (vgParent.isRootNamespace()) { 3115 return null; 3116 } else { 3117 parent = vgParent.getParent(); 3118 } 3119 } 3120 return null; 3121 } 3122 3123 private boolean leaveTouchMode() { 3124 if (mView != null) { 3125 if (mView.hasFocus()) { 3126 // i learned the hard way to not trust mFocusedView :) 3127 mFocusedView = mView.findFocus(); 3128 if (!(mFocusedView instanceof ViewGroup)) { 3129 // some view has focus, let it keep it 3130 return false; 3131 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3132 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3133 // some view group has focus, and doesn't prefer its children 3134 // over itself for focus, so let them keep it. 3135 return false; 3136 } 3137 } 3138 3139 // find the best view to give focus to in this brave new non-touch-mode 3140 // world 3141 final View focused = focusSearch(null, View.FOCUS_DOWN); 3142 if (focused != null) { 3143 return focused.requestFocus(View.FOCUS_DOWN); 3144 } 3145 } 3146 return false; 3147 } 3148 3149 private void deliverInputEvent(QueuedInputEvent q) { 3150 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3151 try { 3152 if (q.mEvent instanceof KeyEvent) { 3153 deliverKeyEvent(q); 3154 } else { 3155 final int source = q.mEvent.getSource(); 3156 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3157 deliverPointerEvent(q); 3158 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3159 deliverTrackballEvent(q); 3160 } else { 3161 deliverGenericMotionEvent(q); 3162 } 3163 } 3164 } finally { 3165 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3166 } 3167 } 3168 3169 private void deliverPointerEvent(QueuedInputEvent q) { 3170 final MotionEvent event = (MotionEvent)q.mEvent; 3171 final boolean isTouchEvent = event.isTouchEvent(); 3172 if (mInputEventConsistencyVerifier != null) { 3173 if (isTouchEvent) { 3174 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3175 } else { 3176 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3177 } 3178 } 3179 3180 // If there is no view, then the event will not be handled. 3181 if (mView == null || !mAdded) { 3182 finishInputEvent(q, false); 3183 return; 3184 } 3185 3186 // Translate the pointer event for compatibility, if needed. 3187 if (mTranslator != null) { 3188 mTranslator.translateEventInScreenToAppWindow(event); 3189 } 3190 3191 // Enter touch mode on down or scroll. 3192 final int action = event.getAction(); 3193 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3194 ensureTouchMode(true); 3195 } 3196 3197 // Offset the scroll position. 3198 if (mCurScrollY != 0) { 3199 event.offsetLocation(0, mCurScrollY); 3200 } 3201 if (MEASURE_LATENCY) { 3202 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3203 } 3204 3205 // Remember the touch position for possible drag-initiation. 3206 if (isTouchEvent) { 3207 mLastTouchPoint.x = event.getRawX(); 3208 mLastTouchPoint.y = event.getRawY(); 3209 } 3210 3211 // Dispatch touch to view hierarchy. 3212 boolean handled = mView.dispatchPointerEvent(event); 3213 if (MEASURE_LATENCY) { 3214 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3215 } 3216 if (handled) { 3217 finishInputEvent(q, true); 3218 return; 3219 } 3220 3221 // Pointer event was unhandled. 3222 finishInputEvent(q, false); 3223 } 3224 3225 private void deliverTrackballEvent(QueuedInputEvent q) { 3226 final MotionEvent event = (MotionEvent)q.mEvent; 3227 if (mInputEventConsistencyVerifier != null) { 3228 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3229 } 3230 3231 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3232 if (LOCAL_LOGV) 3233 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3234 3235 // Dispatch to the IME before propagating down the view hierarchy. 3236 // The IME will eventually call back into handleImeFinishedEvent. 3237 if (mLastWasImTarget) { 3238 InputMethodManager imm = InputMethodManager.peekInstance(); 3239 if (imm != null) { 3240 final int seq = event.getSequenceNumber(); 3241 if (DEBUG_IMF) 3242 Log.v(TAG, "Sending trackball event to IME: seq=" 3243 + seq + " event=" + event); 3244 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3245 mInputMethodCallback); 3246 return; 3247 } 3248 } 3249 } 3250 3251 // Not dispatching to IME, continue with post IME actions. 3252 deliverTrackballEventPostIme(q); 3253 } 3254 3255 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3256 final MotionEvent event = (MotionEvent) q.mEvent; 3257 3258 // If there is no view, then the event will not be handled. 3259 if (mView == null || !mAdded) { 3260 finishInputEvent(q, false); 3261 return; 3262 } 3263 3264 // Deliver the trackball event to the view. 3265 if (mView.dispatchTrackballEvent(event)) { 3266 // If we reach this, we delivered a trackball event to mView and 3267 // mView consumed it. Because we will not translate the trackball 3268 // event into a key event, touch mode will not exit, so we exit 3269 // touch mode here. 3270 ensureTouchMode(false); 3271 3272 finishInputEvent(q, true); 3273 mLastTrackballTime = Integer.MIN_VALUE; 3274 return; 3275 } 3276 3277 // Translate the trackball event into DPAD keys and try to deliver those. 3278 final TrackballAxis x = mTrackballAxisX; 3279 final TrackballAxis y = mTrackballAxisY; 3280 3281 long curTime = SystemClock.uptimeMillis(); 3282 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3283 // It has been too long since the last movement, 3284 // so restart at the beginning. 3285 x.reset(0); 3286 y.reset(0); 3287 mLastTrackballTime = curTime; 3288 } 3289 3290 final int action = event.getAction(); 3291 final int metaState = event.getMetaState(); 3292 switch (action) { 3293 case MotionEvent.ACTION_DOWN: 3294 x.reset(2); 3295 y.reset(2); 3296 enqueueInputEvent(new KeyEvent(curTime, curTime, 3297 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3298 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3299 InputDevice.SOURCE_KEYBOARD)); 3300 break; 3301 case MotionEvent.ACTION_UP: 3302 x.reset(2); 3303 y.reset(2); 3304 enqueueInputEvent(new KeyEvent(curTime, curTime, 3305 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3306 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3307 InputDevice.SOURCE_KEYBOARD)); 3308 break; 3309 } 3310 3311 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3312 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3313 + " move=" + event.getX() 3314 + " / Y=" + y.position + " step=" 3315 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3316 + " move=" + event.getY()); 3317 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3318 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3319 3320 // Generate DPAD events based on the trackball movement. 3321 // We pick the axis that has moved the most as the direction of 3322 // the DPAD. When we generate DPAD events for one axis, then the 3323 // other axis is reset -- we don't want to perform DPAD jumps due 3324 // to slight movements in the trackball when making major movements 3325 // along the other axis. 3326 int keycode = 0; 3327 int movement = 0; 3328 float accel = 1; 3329 if (xOff > yOff) { 3330 movement = x.generate((2/event.getXPrecision())); 3331 if (movement != 0) { 3332 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3333 : KeyEvent.KEYCODE_DPAD_LEFT; 3334 accel = x.acceleration; 3335 y.reset(2); 3336 } 3337 } else if (yOff > 0) { 3338 movement = y.generate((2/event.getYPrecision())); 3339 if (movement != 0) { 3340 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3341 : KeyEvent.KEYCODE_DPAD_UP; 3342 accel = y.acceleration; 3343 x.reset(2); 3344 } 3345 } 3346 3347 if (keycode != 0) { 3348 if (movement < 0) movement = -movement; 3349 int accelMovement = (int)(movement * accel); 3350 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3351 + " accelMovement=" + accelMovement 3352 + " accel=" + accel); 3353 if (accelMovement > movement) { 3354 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3355 + keycode); 3356 movement--; 3357 int repeatCount = accelMovement - movement; 3358 enqueueInputEvent(new KeyEvent(curTime, curTime, 3359 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3360 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3361 InputDevice.SOURCE_KEYBOARD)); 3362 } 3363 while (movement > 0) { 3364 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3365 + keycode); 3366 movement--; 3367 curTime = SystemClock.uptimeMillis(); 3368 enqueueInputEvent(new KeyEvent(curTime, curTime, 3369 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3370 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3371 InputDevice.SOURCE_KEYBOARD)); 3372 enqueueInputEvent(new KeyEvent(curTime, curTime, 3373 KeyEvent.ACTION_UP, keycode, 0, metaState, 3374 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3375 InputDevice.SOURCE_KEYBOARD)); 3376 } 3377 mLastTrackballTime = curTime; 3378 } 3379 3380 // Unfortunately we can't tell whether the application consumed the keys, so 3381 // we always consider the trackball event handled. 3382 finishInputEvent(q, true); 3383 } 3384 3385 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3386 final MotionEvent event = (MotionEvent)q.mEvent; 3387 if (mInputEventConsistencyVerifier != null) { 3388 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3389 } 3390 3391 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3392 if (LOCAL_LOGV) 3393 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3394 3395 // Dispatch to the IME before propagating down the view hierarchy. 3396 // The IME will eventually call back into handleImeFinishedEvent. 3397 if (mLastWasImTarget) { 3398 InputMethodManager imm = InputMethodManager.peekInstance(); 3399 if (imm != null) { 3400 final int seq = event.getSequenceNumber(); 3401 if (DEBUG_IMF) 3402 Log.v(TAG, "Sending generic motion event to IME: seq=" 3403 + seq + " event=" + event); 3404 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3405 mInputMethodCallback); 3406 return; 3407 } 3408 } 3409 } 3410 3411 // Not dispatching to IME, continue with post IME actions. 3412 deliverGenericMotionEventPostIme(q); 3413 } 3414 3415 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3416 final MotionEvent event = (MotionEvent) q.mEvent; 3417 final boolean isJoystick = (event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3418 3419 // If there is no view, then the event will not be handled. 3420 if (mView == null || !mAdded) { 3421 if (isJoystick) { 3422 updateJoystickDirection(event, false); 3423 } 3424 finishInputEvent(q, false); 3425 return; 3426 } 3427 3428 // Deliver the event to the view. 3429 if (mView.dispatchGenericMotionEvent(event)) { 3430 if (isJoystick) { 3431 updateJoystickDirection(event, false); 3432 } 3433 finishInputEvent(q, true); 3434 return; 3435 } 3436 3437 if (isJoystick) { 3438 // Translate the joystick event into DPAD keys and try to deliver 3439 // those. 3440 updateJoystickDirection(event, true); 3441 finishInputEvent(q, true); 3442 } else { 3443 finishInputEvent(q, false); 3444 } 3445 } 3446 3447 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3448 final long time = event.getEventTime(); 3449 final int metaState = event.getMetaState(); 3450 final int deviceId = event.getDeviceId(); 3451 final int source = event.getSource(); 3452 3453 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3454 if (xDirection == 0) { 3455 xDirection = joystickAxisValueToDirection(event.getX()); 3456 } 3457 3458 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3459 if (yDirection == 0) { 3460 yDirection = joystickAxisValueToDirection(event.getY()); 3461 } 3462 3463 if (xDirection != mLastJoystickXDirection) { 3464 if (mLastJoystickXKeyCode != 0) { 3465 enqueueInputEvent(new KeyEvent(time, time, 3466 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3467 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3468 mLastJoystickXKeyCode = 0; 3469 } 3470 3471 mLastJoystickXDirection = xDirection; 3472 3473 if (xDirection != 0 && synthesizeNewKeys) { 3474 mLastJoystickXKeyCode = xDirection > 0 3475 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3476 enqueueInputEvent(new KeyEvent(time, time, 3477 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3478 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3479 } 3480 } 3481 3482 if (yDirection != mLastJoystickYDirection) { 3483 if (mLastJoystickYKeyCode != 0) { 3484 enqueueInputEvent(new KeyEvent(time, time, 3485 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3486 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3487 mLastJoystickYKeyCode = 0; 3488 } 3489 3490 mLastJoystickYDirection = yDirection; 3491 3492 if (yDirection != 0 && synthesizeNewKeys) { 3493 mLastJoystickYKeyCode = yDirection > 0 3494 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3495 enqueueInputEvent(new KeyEvent(time, time, 3496 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3497 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3498 } 3499 } 3500 } 3501 3502 private static int joystickAxisValueToDirection(float value) { 3503 if (value >= 0.5f) { 3504 return 1; 3505 } else if (value <= -0.5f) { 3506 return -1; 3507 } else { 3508 return 0; 3509 } 3510 } 3511 3512 /** 3513 * Returns true if the key is used for keyboard navigation. 3514 * @param keyEvent The key event. 3515 * @return True if the key is used for keyboard navigation. 3516 */ 3517 private static boolean isNavigationKey(KeyEvent keyEvent) { 3518 switch (keyEvent.getKeyCode()) { 3519 case KeyEvent.KEYCODE_DPAD_LEFT: 3520 case KeyEvent.KEYCODE_DPAD_RIGHT: 3521 case KeyEvent.KEYCODE_DPAD_UP: 3522 case KeyEvent.KEYCODE_DPAD_DOWN: 3523 case KeyEvent.KEYCODE_DPAD_CENTER: 3524 case KeyEvent.KEYCODE_PAGE_UP: 3525 case KeyEvent.KEYCODE_PAGE_DOWN: 3526 case KeyEvent.KEYCODE_MOVE_HOME: 3527 case KeyEvent.KEYCODE_MOVE_END: 3528 case KeyEvent.KEYCODE_TAB: 3529 case KeyEvent.KEYCODE_SPACE: 3530 case KeyEvent.KEYCODE_ENTER: 3531 return true; 3532 } 3533 return false; 3534 } 3535 3536 /** 3537 * Returns true if the key is used for typing. 3538 * @param keyEvent The key event. 3539 * @return True if the key is used for typing. 3540 */ 3541 private static boolean isTypingKey(KeyEvent keyEvent) { 3542 return keyEvent.getUnicodeChar() > 0; 3543 } 3544 3545 /** 3546 * See if the key event means we should leave touch mode (and leave touch mode if so). 3547 * @param event The key event. 3548 * @return Whether this key event should be consumed (meaning the act of 3549 * leaving touch mode alone is considered the event). 3550 */ 3551 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3552 // Only relevant in touch mode. 3553 if (!mAttachInfo.mInTouchMode) { 3554 return false; 3555 } 3556 3557 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3558 final int action = event.getAction(); 3559 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3560 return false; 3561 } 3562 3563 // Don't leave touch mode if the IME told us not to. 3564 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3565 return false; 3566 } 3567 3568 // If the key can be used for keyboard navigation then leave touch mode 3569 // and select a focused view if needed (in ensureTouchMode). 3570 // When a new focused view is selected, we consume the navigation key because 3571 // navigation doesn't make much sense unless a view already has focus so 3572 // the key's purpose is to set focus. 3573 if (isNavigationKey(event)) { 3574 return ensureTouchMode(false); 3575 } 3576 3577 // If the key can be used for typing then leave touch mode 3578 // and select a focused view if needed (in ensureTouchMode). 3579 // Always allow the view to process the typing key. 3580 if (isTypingKey(event)) { 3581 ensureTouchMode(false); 3582 return false; 3583 } 3584 3585 return false; 3586 } 3587 3588 private void deliverKeyEvent(QueuedInputEvent q) { 3589 final KeyEvent event = (KeyEvent)q.mEvent; 3590 if (mInputEventConsistencyVerifier != null) { 3591 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3592 } 3593 3594 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3595 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3596 3597 // Perform predispatching before the IME. 3598 if (mView.dispatchKeyEventPreIme(event)) { 3599 finishInputEvent(q, true); 3600 return; 3601 } 3602 3603 // Dispatch to the IME before propagating down the view hierarchy. 3604 // The IME will eventually call back into handleImeFinishedEvent. 3605 if (mLastWasImTarget) { 3606 InputMethodManager imm = InputMethodManager.peekInstance(); 3607 if (imm != null) { 3608 final int seq = event.getSequenceNumber(); 3609 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3610 + seq + " event=" + event); 3611 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3612 return; 3613 } 3614 } 3615 } 3616 3617 // Not dispatching to IME, continue with post IME actions. 3618 deliverKeyEventPostIme(q); 3619 } 3620 3621 void handleImeFinishedEvent(int seq, boolean handled) { 3622 final QueuedInputEvent q = mCurrentInputEvent; 3623 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3624 if (DEBUG_IMF) { 3625 Log.v(TAG, "IME finished event: seq=" + seq 3626 + " handled=" + handled + " event=" + q); 3627 } 3628 if (handled) { 3629 finishInputEvent(q, true); 3630 } else { 3631 if (q.mEvent instanceof KeyEvent) { 3632 KeyEvent event = (KeyEvent)q.mEvent; 3633 if (event.getAction() != KeyEvent.ACTION_UP) { 3634 // If the window doesn't currently have input focus, then drop 3635 // this event. This could be an event that came back from the 3636 // IME dispatch but the window has lost focus in the meantime. 3637 if (!mAttachInfo.mHasWindowFocus) { 3638 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3639 finishInputEvent(q, true); 3640 return; 3641 } 3642 } 3643 deliverKeyEventPostIme(q); 3644 } else { 3645 MotionEvent event = (MotionEvent)q.mEvent; 3646 if (event.getAction() != MotionEvent.ACTION_CANCEL 3647 && event.getAction() != MotionEvent.ACTION_UP) { 3648 // If the window doesn't currently have input focus, then drop 3649 // this event. This could be an event that came back from the 3650 // IME dispatch but the window has lost focus in the meantime. 3651 if (!mAttachInfo.mHasWindowFocus) { 3652 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3653 finishInputEvent(q, true); 3654 return; 3655 } 3656 } 3657 final int source = q.mEvent.getSource(); 3658 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3659 deliverTrackballEventPostIme(q); 3660 } else { 3661 deliverGenericMotionEventPostIme(q); 3662 } 3663 } 3664 } 3665 } else { 3666 if (DEBUG_IMF) { 3667 Log.v(TAG, "IME finished event: seq=" + seq 3668 + " handled=" + handled + ", event not found!"); 3669 } 3670 } 3671 } 3672 3673 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3674 final KeyEvent event = (KeyEvent)q.mEvent; 3675 3676 // If the view went away, then the event will not be handled. 3677 if (mView == null || !mAdded) { 3678 finishInputEvent(q, false); 3679 return; 3680 } 3681 3682 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3683 if (checkForLeavingTouchModeAndConsume(event)) { 3684 finishInputEvent(q, true); 3685 return; 3686 } 3687 3688 // Make sure the fallback event policy sees all keys that will be delivered to the 3689 // view hierarchy. 3690 mFallbackEventHandler.preDispatchKeyEvent(event); 3691 3692 // Deliver the key to the view hierarchy. 3693 if (mView.dispatchKeyEvent(event)) { 3694 finishInputEvent(q, true); 3695 return; 3696 } 3697 3698 // If the Control modifier is held, try to interpret the key as a shortcut. 3699 if (event.getAction() == KeyEvent.ACTION_DOWN 3700 && event.isCtrlPressed() 3701 && event.getRepeatCount() == 0 3702 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3703 if (mView.dispatchKeyShortcutEvent(event)) { 3704 finishInputEvent(q, true); 3705 return; 3706 } 3707 } 3708 3709 // Apply the fallback event policy. 3710 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3711 finishInputEvent(q, true); 3712 return; 3713 } 3714 3715 // Handle automatic focus changes. 3716 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3717 int direction = 0; 3718 switch (event.getKeyCode()) { 3719 case KeyEvent.KEYCODE_DPAD_LEFT: 3720 if (event.hasNoModifiers()) { 3721 direction = View.FOCUS_LEFT; 3722 } 3723 break; 3724 case KeyEvent.KEYCODE_DPAD_RIGHT: 3725 if (event.hasNoModifiers()) { 3726 direction = View.FOCUS_RIGHT; 3727 } 3728 break; 3729 case KeyEvent.KEYCODE_DPAD_UP: 3730 if (event.hasNoModifiers()) { 3731 direction = View.FOCUS_UP; 3732 } 3733 break; 3734 case KeyEvent.KEYCODE_DPAD_DOWN: 3735 if (event.hasNoModifiers()) { 3736 direction = View.FOCUS_DOWN; 3737 } 3738 break; 3739 case KeyEvent.KEYCODE_TAB: 3740 if (event.hasNoModifiers()) { 3741 direction = View.FOCUS_FORWARD; 3742 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3743 direction = View.FOCUS_BACKWARD; 3744 } 3745 break; 3746 } 3747 if (direction != 0) { 3748 View focused = mView.findFocus(); 3749 if (focused != null) { 3750 View v = focused.focusSearch(direction); 3751 if (v != null && v != focused) { 3752 // do the math the get the interesting rect 3753 // of previous focused into the coord system of 3754 // newly focused view 3755 focused.getFocusedRect(mTempRect); 3756 if (mView instanceof ViewGroup) { 3757 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3758 focused, mTempRect); 3759 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3760 v, mTempRect); 3761 } 3762 if (v.requestFocus(direction, mTempRect)) { 3763 playSoundEffect(SoundEffectConstants 3764 .getContantForFocusDirection(direction)); 3765 finishInputEvent(q, true); 3766 return; 3767 } 3768 } 3769 3770 // Give the focused view a last chance to handle the dpad key. 3771 if (mView.dispatchUnhandledMove(focused, direction)) { 3772 finishInputEvent(q, true); 3773 return; 3774 } 3775 } 3776 } 3777 } 3778 3779 // Key was unhandled. 3780 finishInputEvent(q, false); 3781 } 3782 3783 /* drag/drop */ 3784 void setLocalDragState(Object obj) { 3785 mLocalDragState = obj; 3786 } 3787 3788 private void handleDragEvent(DragEvent event) { 3789 // From the root, only drag start/end/location are dispatched. entered/exited 3790 // are determined and dispatched by the viewgroup hierarchy, who then report 3791 // that back here for ultimate reporting back to the framework. 3792 if (mView != null && mAdded) { 3793 final int what = event.mAction; 3794 3795 if (what == DragEvent.ACTION_DRAG_EXITED) { 3796 // A direct EXITED event means that the window manager knows we've just crossed 3797 // a window boundary, so the current drag target within this one must have 3798 // just been exited. Send it the usual notifications and then we're done 3799 // for now. 3800 mView.dispatchDragEvent(event); 3801 } else { 3802 // Cache the drag description when the operation starts, then fill it in 3803 // on subsequent calls as a convenience 3804 if (what == DragEvent.ACTION_DRAG_STARTED) { 3805 mCurrentDragView = null; // Start the current-recipient tracking 3806 mDragDescription = event.mClipDescription; 3807 } else { 3808 event.mClipDescription = mDragDescription; 3809 } 3810 3811 // For events with a [screen] location, translate into window coordinates 3812 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3813 mDragPoint.set(event.mX, event.mY); 3814 if (mTranslator != null) { 3815 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3816 } 3817 3818 if (mCurScrollY != 0) { 3819 mDragPoint.offset(0, mCurScrollY); 3820 } 3821 3822 event.mX = mDragPoint.x; 3823 event.mY = mDragPoint.y; 3824 } 3825 3826 // Remember who the current drag target is pre-dispatch 3827 final View prevDragView = mCurrentDragView; 3828 3829 // Now dispatch the drag/drop event 3830 boolean result = mView.dispatchDragEvent(event); 3831 3832 // If we changed apparent drag target, tell the OS about it 3833 if (prevDragView != mCurrentDragView) { 3834 try { 3835 if (prevDragView != null) { 3836 mWindowSession.dragRecipientExited(mWindow); 3837 } 3838 if (mCurrentDragView != null) { 3839 mWindowSession.dragRecipientEntered(mWindow); 3840 } 3841 } catch (RemoteException e) { 3842 Slog.e(TAG, "Unable to note drag target change"); 3843 } 3844 } 3845 3846 // Report the drop result when we're done 3847 if (what == DragEvent.ACTION_DROP) { 3848 mDragDescription = null; 3849 try { 3850 Log.i(TAG, "Reporting drop result: " + result); 3851 mWindowSession.reportDropResult(mWindow, result); 3852 } catch (RemoteException e) { 3853 Log.e(TAG, "Unable to report drop result"); 3854 } 3855 } 3856 3857 // When the drag operation ends, release any local state object 3858 // that may have been in use 3859 if (what == DragEvent.ACTION_DRAG_ENDED) { 3860 setLocalDragState(null); 3861 } 3862 } 3863 } 3864 event.recycle(); 3865 } 3866 3867 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3868 if (mSeq != args.seq) { 3869 // The sequence has changed, so we need to update our value and make 3870 // sure to do a traversal afterward so the window manager is given our 3871 // most recent data. 3872 mSeq = args.seq; 3873 mAttachInfo.mForceReportNewAttributes = true; 3874 scheduleTraversals(); 3875 } 3876 if (mView == null) return; 3877 if (args.localChanges != 0) { 3878 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3879 } 3880 if (mAttachInfo != null) { 3881 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3882 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3883 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3884 mView.dispatchSystemUiVisibilityChanged(visibility); 3885 } 3886 } 3887 } 3888 3889 public void handleDispatchDoneAnimating() { 3890 if (mWindowsAnimating) { 3891 mWindowsAnimating = false; 3892 if (!mDirty.isEmpty() || mIsAnimating) { 3893 scheduleTraversals(); 3894 } 3895 } 3896 } 3897 3898 public void getLastTouchPoint(Point outLocation) { 3899 outLocation.x = (int) mLastTouchPoint.x; 3900 outLocation.y = (int) mLastTouchPoint.y; 3901 } 3902 3903 public void setDragFocus(View newDragTarget) { 3904 if (mCurrentDragView != newDragTarget) { 3905 mCurrentDragView = newDragTarget; 3906 } 3907 } 3908 3909 private AudioManager getAudioManager() { 3910 if (mView == null) { 3911 throw new IllegalStateException("getAudioManager called when there is no mView"); 3912 } 3913 if (mAudioManager == null) { 3914 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3915 } 3916 return mAudioManager; 3917 } 3918 3919 public AccessibilityInteractionController getAccessibilityInteractionController() { 3920 if (mView == null) { 3921 throw new IllegalStateException("getAccessibilityInteractionController" 3922 + " called when there is no mView"); 3923 } 3924 if (mAccessibilityInteractionController == null) { 3925 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3926 } 3927 return mAccessibilityInteractionController; 3928 } 3929 3930 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3931 boolean insetsPending) throws RemoteException { 3932 3933 float appScale = mAttachInfo.mApplicationScale; 3934 boolean restore = false; 3935 if (params != null && mTranslator != null) { 3936 restore = true; 3937 params.backup(); 3938 mTranslator.translateWindowLayout(params); 3939 } 3940 if (params != null) { 3941 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3942 } 3943 mPendingConfiguration.seq = 0; 3944 //Log.d(TAG, ">>>>>> CALLING relayout"); 3945 if (params != null && mOrigWindowType != params.type) { 3946 // For compatibility with old apps, don't crash here. 3947 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3948 Slog.w(TAG, "Window type can not be changed after " 3949 + "the window is added; ignoring change of " + mView); 3950 params.type = mOrigWindowType; 3951 } 3952 } 3953 int relayoutResult = mWindowSession.relayout( 3954 mWindow, mSeq, params, 3955 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3956 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3957 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3958 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3959 mPendingConfiguration, mSurface); 3960 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3961 if (restore) { 3962 params.restore(); 3963 } 3964 3965 if (mTranslator != null) { 3966 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3967 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3968 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3969 } 3970 return relayoutResult; 3971 } 3972 3973 /** 3974 * {@inheritDoc} 3975 */ 3976 public void playSoundEffect(int effectId) { 3977 checkThread(); 3978 3979 try { 3980 final AudioManager audioManager = getAudioManager(); 3981 3982 switch (effectId) { 3983 case SoundEffectConstants.CLICK: 3984 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3985 return; 3986 case SoundEffectConstants.NAVIGATION_DOWN: 3987 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3988 return; 3989 case SoundEffectConstants.NAVIGATION_LEFT: 3990 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3991 return; 3992 case SoundEffectConstants.NAVIGATION_RIGHT: 3993 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3994 return; 3995 case SoundEffectConstants.NAVIGATION_UP: 3996 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3997 return; 3998 default: 3999 throw new IllegalArgumentException("unknown effect id " + effectId + 4000 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4001 } 4002 } catch (IllegalStateException e) { 4003 // Exception thrown by getAudioManager() when mView is null 4004 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4005 e.printStackTrace(); 4006 } 4007 } 4008 4009 /** 4010 * {@inheritDoc} 4011 */ 4012 public boolean performHapticFeedback(int effectId, boolean always) { 4013 try { 4014 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4015 } catch (RemoteException e) { 4016 return false; 4017 } 4018 } 4019 4020 /** 4021 * {@inheritDoc} 4022 */ 4023 public View focusSearch(View focused, int direction) { 4024 checkThread(); 4025 if (!(mView instanceof ViewGroup)) { 4026 return null; 4027 } 4028 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4029 } 4030 4031 public void debug() { 4032 mView.debug(); 4033 } 4034 4035 public void dumpGfxInfo(int[] info) { 4036 info[0] = info[1] = 0; 4037 if (mView != null) { 4038 getGfxInfo(mView, info); 4039 } 4040 } 4041 4042 private static void getGfxInfo(View view, int[] info) { 4043 DisplayList displayList = view.mDisplayList; 4044 info[0]++; 4045 if (displayList != null) { 4046 info[1] += displayList.getSize(); 4047 } 4048 4049 if (view instanceof ViewGroup) { 4050 ViewGroup group = (ViewGroup) view; 4051 4052 int count = group.getChildCount(); 4053 for (int i = 0; i < count; i++) { 4054 getGfxInfo(group.getChildAt(i), info); 4055 } 4056 } 4057 } 4058 4059 public void die(boolean immediate) { 4060 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4061 // done by dispatchDetachedFromWindow will cause havoc on return. 4062 if (immediate && !mIsInTraversal) { 4063 doDie(); 4064 } else { 4065 if (!mIsDrawing) { 4066 destroyHardwareRenderer(); 4067 } else { 4068 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4069 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4070 } 4071 mHandler.sendEmptyMessage(MSG_DIE); 4072 } 4073 } 4074 4075 void doDie() { 4076 checkThread(); 4077 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4078 synchronized (this) { 4079 if (mAdded) { 4080 dispatchDetachedFromWindow(); 4081 } 4082 4083 if (mAdded && !mFirst) { 4084 destroyHardwareRenderer(); 4085 4086 if (mView != null) { 4087 int viewVisibility = mView.getVisibility(); 4088 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4089 if (mWindowAttributesChanged || viewVisibilityChanged) { 4090 // If layout params have been changed, first give them 4091 // to the window manager to make sure it has the correct 4092 // animation info. 4093 try { 4094 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4095 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4096 mWindowSession.finishDrawing(mWindow); 4097 } 4098 } catch (RemoteException e) { 4099 } 4100 } 4101 4102 mSurface.release(); 4103 } 4104 } 4105 4106 mAdded = false; 4107 } 4108 } 4109 4110 public void requestUpdateConfiguration(Configuration config) { 4111 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4112 mHandler.sendMessage(msg); 4113 } 4114 4115 public void loadSystemProperties() { 4116 boolean layout = SystemProperties.getBoolean( 4117 View.DEBUG_LAYOUT_PROPERTY, false); 4118 if (layout != mAttachInfo.mDebugLayout) { 4119 mAttachInfo.mDebugLayout = layout; 4120 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4121 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4122 } 4123 } 4124 } 4125 4126 private void destroyHardwareRenderer() { 4127 AttachInfo attachInfo = mAttachInfo; 4128 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4129 4130 if (hardwareRenderer != null) { 4131 if (mView != null) { 4132 hardwareRenderer.destroyHardwareResources(mView); 4133 } 4134 hardwareRenderer.destroy(true); 4135 hardwareRenderer.setRequested(false); 4136 4137 attachInfo.mHardwareRenderer = null; 4138 attachInfo.mHardwareAccelerated = false; 4139 } 4140 } 4141 4142 void dispatchImeFinishedEvent(int seq, boolean handled) { 4143 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4144 msg.arg1 = seq; 4145 msg.arg2 = handled ? 1 : 0; 4146 msg.setAsynchronous(true); 4147 mHandler.sendMessage(msg); 4148 } 4149 4150 public void dispatchFinishInputConnection(InputConnection connection) { 4151 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4152 mHandler.sendMessage(msg); 4153 } 4154 4155 public void dispatchResized(Rect frame, Rect contentInsets, 4156 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4157 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4158 + " contentInsets=" + contentInsets.toShortString() 4159 + " visibleInsets=" + visibleInsets.toShortString() 4160 + " reportDraw=" + reportDraw); 4161 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4162 if (mTranslator != null) { 4163 mTranslator.translateRectInScreenToAppWindow(frame); 4164 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4165 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4166 } 4167 SomeArgs args = SomeArgs.obtain(); 4168 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4169 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4170 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4171 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4172 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4173 msg.obj = args; 4174 mHandler.sendMessage(msg); 4175 } 4176 4177 public void dispatchMoved(int newX, int newY) { 4178 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4179 if (mTranslator != null) { 4180 PointF point = new PointF(newX, newY); 4181 mTranslator.translatePointInScreenToAppWindow(point); 4182 newX = (int) (point.x + 0.5); 4183 newY = (int) (point.y + 0.5); 4184 } 4185 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4186 mHandler.sendMessage(msg); 4187 } 4188 4189 /** 4190 * Represents a pending input event that is waiting in a queue. 4191 * 4192 * Input events are processed in serial order by the timestamp specified by 4193 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4194 * one input event to the application at a time and waits for the application 4195 * to finish handling it before delivering the next one. 4196 * 4197 * However, because the application or IME can synthesize and inject multiple 4198 * key events at a time without going through the input dispatcher, we end up 4199 * needing a queue on the application's side. 4200 */ 4201 private static final class QueuedInputEvent { 4202 public static final int FLAG_DELIVER_POST_IME = 1; 4203 4204 public QueuedInputEvent mNext; 4205 4206 public InputEvent mEvent; 4207 public InputEventReceiver mReceiver; 4208 public int mFlags; 4209 } 4210 4211 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4212 InputEventReceiver receiver, int flags) { 4213 QueuedInputEvent q = mQueuedInputEventPool; 4214 if (q != null) { 4215 mQueuedInputEventPoolSize -= 1; 4216 mQueuedInputEventPool = q.mNext; 4217 q.mNext = null; 4218 } else { 4219 q = new QueuedInputEvent(); 4220 } 4221 4222 q.mEvent = event; 4223 q.mReceiver = receiver; 4224 q.mFlags = flags; 4225 return q; 4226 } 4227 4228 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4229 q.mEvent = null; 4230 q.mReceiver = null; 4231 4232 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4233 mQueuedInputEventPoolSize += 1; 4234 q.mNext = mQueuedInputEventPool; 4235 mQueuedInputEventPool = q; 4236 } 4237 } 4238 4239 void enqueueInputEvent(InputEvent event) { 4240 enqueueInputEvent(event, null, 0, false); 4241 } 4242 4243 void enqueueInputEvent(InputEvent event, 4244 InputEventReceiver receiver, int flags, boolean processImmediately) { 4245 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4246 4247 // Always enqueue the input event in order, regardless of its time stamp. 4248 // We do this because the application or the IME may inject key events 4249 // in response to touch events and we want to ensure that the injected keys 4250 // are processed in the order they were received and we cannot trust that 4251 // the time stamp of injected events are monotonic. 4252 QueuedInputEvent last = mFirstPendingInputEvent; 4253 if (last == null) { 4254 mFirstPendingInputEvent = q; 4255 } else { 4256 while (last.mNext != null) { 4257 last = last.mNext; 4258 } 4259 last.mNext = q; 4260 } 4261 4262 if (processImmediately) { 4263 doProcessInputEvents(); 4264 } else { 4265 scheduleProcessInputEvents(); 4266 } 4267 } 4268 4269 private void scheduleProcessInputEvents() { 4270 if (!mProcessInputEventsScheduled) { 4271 mProcessInputEventsScheduled = true; 4272 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4273 msg.setAsynchronous(true); 4274 mHandler.sendMessage(msg); 4275 } 4276 } 4277 4278 void doProcessInputEvents() { 4279 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4280 QueuedInputEvent q = mFirstPendingInputEvent; 4281 mFirstPendingInputEvent = q.mNext; 4282 q.mNext = null; 4283 mCurrentInputEvent = q; 4284 deliverInputEvent(q); 4285 } 4286 4287 // We are done processing all input events that we can process right now 4288 // so we can clear the pending flag immediately. 4289 if (mProcessInputEventsScheduled) { 4290 mProcessInputEventsScheduled = false; 4291 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4292 } 4293 } 4294 4295 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4296 if (q != mCurrentInputEvent) { 4297 throw new IllegalStateException("finished input event out of order"); 4298 } 4299 4300 if (q.mReceiver != null) { 4301 q.mReceiver.finishInputEvent(q.mEvent, handled); 4302 } else { 4303 q.mEvent.recycleIfNeededAfterDispatch(); 4304 } 4305 4306 recycleQueuedInputEvent(q); 4307 4308 mCurrentInputEvent = null; 4309 if (mFirstPendingInputEvent != null) { 4310 scheduleProcessInputEvents(); 4311 } 4312 } 4313 4314 void scheduleConsumeBatchedInput() { 4315 if (!mConsumeBatchedInputScheduled) { 4316 mConsumeBatchedInputScheduled = true; 4317 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4318 mConsumedBatchedInputRunnable, null); 4319 } 4320 } 4321 4322 void unscheduleConsumeBatchedInput() { 4323 if (mConsumeBatchedInputScheduled) { 4324 mConsumeBatchedInputScheduled = false; 4325 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4326 mConsumedBatchedInputRunnable, null); 4327 } 4328 } 4329 4330 void doConsumeBatchedInput(long frameTimeNanos) { 4331 if (mConsumeBatchedInputScheduled) { 4332 mConsumeBatchedInputScheduled = false; 4333 if (mInputEventReceiver != null) { 4334 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4335 } 4336 doProcessInputEvents(); 4337 } 4338 } 4339 4340 final class TraversalRunnable implements Runnable { 4341 @Override 4342 public void run() { 4343 doTraversal(); 4344 } 4345 } 4346 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4347 4348 final class WindowInputEventReceiver extends InputEventReceiver { 4349 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4350 super(inputChannel, looper); 4351 } 4352 4353 @Override 4354 public void onInputEvent(InputEvent event) { 4355 enqueueInputEvent(event, this, 0, true); 4356 } 4357 4358 @Override 4359 public void onBatchedInputEventPending() { 4360 scheduleConsumeBatchedInput(); 4361 } 4362 4363 @Override 4364 public void dispose() { 4365 unscheduleConsumeBatchedInput(); 4366 super.dispose(); 4367 } 4368 } 4369 WindowInputEventReceiver mInputEventReceiver; 4370 4371 final class ConsumeBatchedInputRunnable implements Runnable { 4372 @Override 4373 public void run() { 4374 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4375 } 4376 } 4377 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4378 new ConsumeBatchedInputRunnable(); 4379 boolean mConsumeBatchedInputScheduled; 4380 4381 final class InvalidateOnAnimationRunnable implements Runnable { 4382 private boolean mPosted; 4383 private ArrayList<View> mViews = new ArrayList<View>(); 4384 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4385 new ArrayList<AttachInfo.InvalidateInfo>(); 4386 private View[] mTempViews; 4387 private AttachInfo.InvalidateInfo[] mTempViewRects; 4388 4389 public void addView(View view) { 4390 synchronized (this) { 4391 mViews.add(view); 4392 postIfNeededLocked(); 4393 } 4394 } 4395 4396 public void addViewRect(AttachInfo.InvalidateInfo info) { 4397 synchronized (this) { 4398 mViewRects.add(info); 4399 postIfNeededLocked(); 4400 } 4401 } 4402 4403 public void removeView(View view) { 4404 synchronized (this) { 4405 mViews.remove(view); 4406 4407 for (int i = mViewRects.size(); i-- > 0; ) { 4408 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4409 if (info.target == view) { 4410 mViewRects.remove(i); 4411 info.release(); 4412 } 4413 } 4414 4415 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4416 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4417 mPosted = false; 4418 } 4419 } 4420 } 4421 4422 @Override 4423 public void run() { 4424 final int viewCount; 4425 final int viewRectCount; 4426 synchronized (this) { 4427 mPosted = false; 4428 4429 viewCount = mViews.size(); 4430 if (viewCount != 0) { 4431 mTempViews = mViews.toArray(mTempViews != null 4432 ? mTempViews : new View[viewCount]); 4433 mViews.clear(); 4434 } 4435 4436 viewRectCount = mViewRects.size(); 4437 if (viewRectCount != 0) { 4438 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4439 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4440 mViewRects.clear(); 4441 } 4442 } 4443 4444 for (int i = 0; i < viewCount; i++) { 4445 mTempViews[i].invalidate(); 4446 mTempViews[i] = null; 4447 } 4448 4449 for (int i = 0; i < viewRectCount; i++) { 4450 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4451 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4452 info.release(); 4453 } 4454 } 4455 4456 private void postIfNeededLocked() { 4457 if (!mPosted) { 4458 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4459 mPosted = true; 4460 } 4461 } 4462 } 4463 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4464 new InvalidateOnAnimationRunnable(); 4465 4466 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4467 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4468 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4469 } 4470 4471 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4472 long delayMilliseconds) { 4473 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4474 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4475 } 4476 4477 public void dispatchInvalidateOnAnimation(View view) { 4478 mInvalidateOnAnimationRunnable.addView(view); 4479 } 4480 4481 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4482 mInvalidateOnAnimationRunnable.addViewRect(info); 4483 } 4484 4485 public void enqueueDisplayList(DisplayList displayList) { 4486 mDisplayLists.add(displayList); 4487 4488 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4489 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4490 mHandler.sendMessage(msg); 4491 } 4492 4493 public void dequeueDisplayList(DisplayList displayList) { 4494 if (mDisplayLists.remove(displayList)) { 4495 displayList.invalidate(); 4496 if (mDisplayLists.size() == 0) { 4497 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4498 } 4499 } 4500 } 4501 4502 public void cancelInvalidate(View view) { 4503 mHandler.removeMessages(MSG_INVALIDATE, view); 4504 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4505 // them to the pool 4506 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4507 mInvalidateOnAnimationRunnable.removeView(view); 4508 } 4509 4510 public void dispatchKey(KeyEvent event) { 4511 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4512 msg.setAsynchronous(true); 4513 mHandler.sendMessage(msg); 4514 } 4515 4516 public void dispatchKeyFromIme(KeyEvent event) { 4517 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4518 msg.setAsynchronous(true); 4519 mHandler.sendMessage(msg); 4520 } 4521 4522 public void dispatchUnhandledKey(KeyEvent event) { 4523 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4524 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4525 final int keyCode = event.getKeyCode(); 4526 final int metaState = event.getMetaState(); 4527 4528 // Check for fallback actions specified by the key character map. 4529 KeyCharacterMap.FallbackAction fallbackAction = 4530 kcm.getFallbackAction(keyCode, metaState); 4531 if (fallbackAction != null) { 4532 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4533 KeyEvent fallbackEvent = KeyEvent.obtain( 4534 event.getDownTime(), event.getEventTime(), 4535 event.getAction(), fallbackAction.keyCode, 4536 event.getRepeatCount(), fallbackAction.metaState, 4537 event.getDeviceId(), event.getScanCode(), 4538 flags, event.getSource(), null); 4539 fallbackAction.recycle(); 4540 4541 dispatchKey(fallbackEvent); 4542 } 4543 } 4544 } 4545 4546 public void dispatchAppVisibility(boolean visible) { 4547 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4548 msg.arg1 = visible ? 1 : 0; 4549 mHandler.sendMessage(msg); 4550 } 4551 4552 public void dispatchScreenStateChange(boolean on) { 4553 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4554 msg.arg1 = on ? 1 : 0; 4555 mHandler.sendMessage(msg); 4556 } 4557 4558 public void dispatchGetNewSurface() { 4559 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4560 mHandler.sendMessage(msg); 4561 } 4562 4563 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4564 Message msg = Message.obtain(); 4565 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4566 msg.arg1 = hasFocus ? 1 : 0; 4567 msg.arg2 = inTouchMode ? 1 : 0; 4568 mHandler.sendMessage(msg); 4569 } 4570 4571 public void dispatchCloseSystemDialogs(String reason) { 4572 Message msg = Message.obtain(); 4573 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4574 msg.obj = reason; 4575 mHandler.sendMessage(msg); 4576 } 4577 4578 public void dispatchDragEvent(DragEvent event) { 4579 final int what; 4580 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4581 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4582 mHandler.removeMessages(what); 4583 } else { 4584 what = MSG_DISPATCH_DRAG_EVENT; 4585 } 4586 Message msg = mHandler.obtainMessage(what, event); 4587 mHandler.sendMessage(msg); 4588 } 4589 4590 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4591 int localValue, int localChanges) { 4592 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4593 args.seq = seq; 4594 args.globalVisibility = globalVisibility; 4595 args.localValue = localValue; 4596 args.localChanges = localChanges; 4597 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4598 } 4599 4600 public void dispatchDoneAnimating() { 4601 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4602 } 4603 4604 public void dispatchCheckFocus() { 4605 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4606 // This will result in a call to checkFocus() below. 4607 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4608 } 4609 } 4610 4611 /** 4612 * Post a callback to send a 4613 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4614 * This event is send at most once every 4615 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4616 */ 4617 private void postSendWindowContentChangedCallback(View source) { 4618 if (mSendWindowContentChangedAccessibilityEvent == null) { 4619 mSendWindowContentChangedAccessibilityEvent = 4620 new SendWindowContentChangedAccessibilityEvent(); 4621 } 4622 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4623 if (oldSource == null) { 4624 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4625 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4626 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4627 } else { 4628 mSendWindowContentChangedAccessibilityEvent.mSource = 4629 getCommonPredecessor(oldSource, source); 4630 } 4631 } 4632 4633 /** 4634 * Remove a posted callback to send a 4635 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4636 */ 4637 private void removeSendWindowContentChangedCallback() { 4638 if (mSendWindowContentChangedAccessibilityEvent != null) { 4639 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4640 } 4641 } 4642 4643 public boolean showContextMenuForChild(View originalView) { 4644 return false; 4645 } 4646 4647 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4648 return null; 4649 } 4650 4651 public void createContextMenu(ContextMenu menu) { 4652 } 4653 4654 public void childDrawableStateChanged(View child) { 4655 } 4656 4657 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4658 if (mView == null) { 4659 return false; 4660 } 4661 // Intercept accessibility focus events fired by virtual nodes to keep 4662 // track of accessibility focus position in such nodes. 4663 final int eventType = event.getEventType(); 4664 switch (eventType) { 4665 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4666 final long sourceNodeId = event.getSourceNodeId(); 4667 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4668 sourceNodeId); 4669 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4670 if (source != null) { 4671 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4672 if (provider != null) { 4673 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4674 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4675 setAccessibilityFocus(source, node); 4676 } 4677 } 4678 } break; 4679 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4680 final long sourceNodeId = event.getSourceNodeId(); 4681 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4682 sourceNodeId); 4683 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4684 if (source != null) { 4685 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4686 if (provider != null) { 4687 setAccessibilityFocus(null, null); 4688 } 4689 } 4690 } break; 4691 } 4692 mAccessibilityManager.sendAccessibilityEvent(event); 4693 return true; 4694 } 4695 4696 @Override 4697 public void childAccessibilityStateChanged(View child) { 4698 postSendWindowContentChangedCallback(child); 4699 } 4700 4701 private View getCommonPredecessor(View first, View second) { 4702 if (mAttachInfo != null) { 4703 if (mTempHashSet == null) { 4704 mTempHashSet = new HashSet<View>(); 4705 } 4706 HashSet<View> seen = mTempHashSet; 4707 seen.clear(); 4708 View firstCurrent = first; 4709 while (firstCurrent != null) { 4710 seen.add(firstCurrent); 4711 ViewParent firstCurrentParent = firstCurrent.mParent; 4712 if (firstCurrentParent instanceof View) { 4713 firstCurrent = (View) firstCurrentParent; 4714 } else { 4715 firstCurrent = null; 4716 } 4717 } 4718 View secondCurrent = second; 4719 while (secondCurrent != null) { 4720 if (seen.contains(secondCurrent)) { 4721 seen.clear(); 4722 return secondCurrent; 4723 } 4724 ViewParent secondCurrentParent = secondCurrent.mParent; 4725 if (secondCurrentParent instanceof View) { 4726 secondCurrent = (View) secondCurrentParent; 4727 } else { 4728 secondCurrent = null; 4729 } 4730 } 4731 seen.clear(); 4732 } 4733 return null; 4734 } 4735 4736 void checkThread() { 4737 if (mThread != Thread.currentThread()) { 4738 throw new CalledFromWrongThreadException( 4739 "Only the original thread that created a view hierarchy can touch its views."); 4740 } 4741 } 4742 4743 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4744 // ViewAncestor never intercepts touch event, so this can be a no-op 4745 } 4746 4747 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4748 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4749 if (rectangle != null) { 4750 mTempRect.set(rectangle); 4751 mTempRect.offset(0, -mCurScrollY); 4752 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4753 try { 4754 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4755 } catch (RemoteException re) { 4756 /* ignore */ 4757 } 4758 } 4759 return scrolled; 4760 } 4761 4762 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4763 // Do nothing. 4764 } 4765 4766 class TakenSurfaceHolder extends BaseSurfaceHolder { 4767 @Override 4768 public boolean onAllowLockCanvas() { 4769 return mDrawingAllowed; 4770 } 4771 4772 @Override 4773 public void onRelayoutContainer() { 4774 // Not currently interesting -- from changing between fixed and layout size. 4775 } 4776 4777 public void setFormat(int format) { 4778 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4779 } 4780 4781 public void setType(int type) { 4782 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4783 } 4784 4785 @Override 4786 public void onUpdateSurface() { 4787 // We take care of format and type changes on our own. 4788 throw new IllegalStateException("Shouldn't be here"); 4789 } 4790 4791 public boolean isCreating() { 4792 return mIsCreating; 4793 } 4794 4795 @Override 4796 public void setFixedSize(int width, int height) { 4797 throw new UnsupportedOperationException( 4798 "Currently only support sizing from layout"); 4799 } 4800 4801 public void setKeepScreenOn(boolean screenOn) { 4802 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4803 } 4804 } 4805 4806 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4807 private WeakReference<ViewRootImpl> mViewAncestor; 4808 4809 public InputMethodCallback(ViewRootImpl viewAncestor) { 4810 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4811 } 4812 4813 @Override 4814 public void finishedEvent(int seq, boolean handled) { 4815 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4816 if (viewAncestor != null) { 4817 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4818 } 4819 } 4820 } 4821 4822 static class W extends IWindow.Stub { 4823 private final WeakReference<ViewRootImpl> mViewAncestor; 4824 private final IWindowSession mWindowSession; 4825 4826 W(ViewRootImpl viewAncestor) { 4827 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4828 mWindowSession = viewAncestor.mWindowSession; 4829 } 4830 4831 public void resized(Rect frame, Rect contentInsets, 4832 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4833 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4834 if (viewAncestor != null) { 4835 viewAncestor.dispatchResized(frame, contentInsets, 4836 visibleInsets, reportDraw, newConfig); 4837 } 4838 } 4839 4840 @Override 4841 public void moved(int newX, int newY) { 4842 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4843 if (viewAncestor != null) { 4844 viewAncestor.dispatchMoved(newX, newY); 4845 } 4846 } 4847 4848 public void dispatchAppVisibility(boolean visible) { 4849 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4850 if (viewAncestor != null) { 4851 viewAncestor.dispatchAppVisibility(visible); 4852 } 4853 } 4854 4855 public void dispatchScreenState(boolean on) { 4856 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4857 if (viewAncestor != null) { 4858 viewAncestor.dispatchScreenStateChange(on); 4859 } 4860 } 4861 4862 public void dispatchGetNewSurface() { 4863 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4864 if (viewAncestor != null) { 4865 viewAncestor.dispatchGetNewSurface(); 4866 } 4867 } 4868 4869 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4870 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4871 if (viewAncestor != null) { 4872 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4873 } 4874 } 4875 4876 private static int checkCallingPermission(String permission) { 4877 try { 4878 return ActivityManagerNative.getDefault().checkPermission( 4879 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4880 } catch (RemoteException e) { 4881 return PackageManager.PERMISSION_DENIED; 4882 } 4883 } 4884 4885 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4886 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4887 if (viewAncestor != null) { 4888 final View view = viewAncestor.mView; 4889 if (view != null) { 4890 if (checkCallingPermission(Manifest.permission.DUMP) != 4891 PackageManager.PERMISSION_GRANTED) { 4892 throw new SecurityException("Insufficient permissions to invoke" 4893 + " executeCommand() from pid=" + Binder.getCallingPid() 4894 + ", uid=" + Binder.getCallingUid()); 4895 } 4896 4897 OutputStream clientStream = null; 4898 try { 4899 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4900 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4901 } catch (IOException e) { 4902 e.printStackTrace(); 4903 } finally { 4904 if (clientStream != null) { 4905 try { 4906 clientStream.close(); 4907 } catch (IOException e) { 4908 e.printStackTrace(); 4909 } 4910 } 4911 } 4912 } 4913 } 4914 } 4915 4916 public void closeSystemDialogs(String reason) { 4917 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4918 if (viewAncestor != null) { 4919 viewAncestor.dispatchCloseSystemDialogs(reason); 4920 } 4921 } 4922 4923 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4924 boolean sync) { 4925 if (sync) { 4926 try { 4927 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4928 } catch (RemoteException e) { 4929 } 4930 } 4931 } 4932 4933 public void dispatchWallpaperCommand(String action, int x, int y, 4934 int z, Bundle extras, boolean sync) { 4935 if (sync) { 4936 try { 4937 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4938 } catch (RemoteException e) { 4939 } 4940 } 4941 } 4942 4943 /* Drag/drop */ 4944 public void dispatchDragEvent(DragEvent event) { 4945 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4946 if (viewAncestor != null) { 4947 viewAncestor.dispatchDragEvent(event); 4948 } 4949 } 4950 4951 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4952 int localValue, int localChanges) { 4953 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4954 if (viewAncestor != null) { 4955 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4956 localValue, localChanges); 4957 } 4958 } 4959 4960 public void doneAnimating() { 4961 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4962 if (viewAncestor != null) { 4963 viewAncestor.dispatchDoneAnimating(); 4964 } 4965 } 4966 } 4967 4968 /** 4969 * Maintains state information for a single trackball axis, generating 4970 * discrete (DPAD) movements based on raw trackball motion. 4971 */ 4972 static final class TrackballAxis { 4973 /** 4974 * The maximum amount of acceleration we will apply. 4975 */ 4976 static final float MAX_ACCELERATION = 20; 4977 4978 /** 4979 * The maximum amount of time (in milliseconds) between events in order 4980 * for us to consider the user to be doing fast trackball movements, 4981 * and thus apply an acceleration. 4982 */ 4983 static final long FAST_MOVE_TIME = 150; 4984 4985 /** 4986 * Scaling factor to the time (in milliseconds) between events to how 4987 * much to multiple/divide the current acceleration. When movement 4988 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4989 * FAST_MOVE_TIME it divides it. 4990 */ 4991 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4992 4993 float position; 4994 float absPosition; 4995 float acceleration = 1; 4996 long lastMoveTime = 0; 4997 int step; 4998 int dir; 4999 int nonAccelMovement; 5000 5001 void reset(int _step) { 5002 position = 0; 5003 acceleration = 1; 5004 lastMoveTime = 0; 5005 step = _step; 5006 dir = 0; 5007 } 5008 5009 /** 5010 * Add trackball movement into the state. If the direction of movement 5011 * has been reversed, the state is reset before adding the 5012 * movement (so that you don't have to compensate for any previously 5013 * collected movement before see the result of the movement in the 5014 * new direction). 5015 * 5016 * @return Returns the absolute value of the amount of movement 5017 * collected so far. 5018 */ 5019 float collect(float off, long time, String axis) { 5020 long normTime; 5021 if (off > 0) { 5022 normTime = (long)(off * FAST_MOVE_TIME); 5023 if (dir < 0) { 5024 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5025 position = 0; 5026 step = 0; 5027 acceleration = 1; 5028 lastMoveTime = 0; 5029 } 5030 dir = 1; 5031 } else if (off < 0) { 5032 normTime = (long)((-off) * FAST_MOVE_TIME); 5033 if (dir > 0) { 5034 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5035 position = 0; 5036 step = 0; 5037 acceleration = 1; 5038 lastMoveTime = 0; 5039 } 5040 dir = -1; 5041 } else { 5042 normTime = 0; 5043 } 5044 5045 // The number of milliseconds between each movement that is 5046 // considered "normal" and will not result in any acceleration 5047 // or deceleration, scaled by the offset we have here. 5048 if (normTime > 0) { 5049 long delta = time - lastMoveTime; 5050 lastMoveTime = time; 5051 float acc = acceleration; 5052 if (delta < normTime) { 5053 // The user is scrolling rapidly, so increase acceleration. 5054 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5055 if (scale > 1) acc *= scale; 5056 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5057 + off + " normTime=" + normTime + " delta=" + delta 5058 + " scale=" + scale + " acc=" + acc); 5059 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5060 } else { 5061 // The user is scrolling slowly, so decrease acceleration. 5062 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5063 if (scale > 1) acc /= scale; 5064 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5065 + off + " normTime=" + normTime + " delta=" + delta 5066 + " scale=" + scale + " acc=" + acc); 5067 acceleration = acc > 1 ? acc : 1; 5068 } 5069 } 5070 position += off; 5071 return (absPosition = Math.abs(position)); 5072 } 5073 5074 /** 5075 * Generate the number of discrete movement events appropriate for 5076 * the currently collected trackball movement. 5077 * 5078 * @param precision The minimum movement required to generate the 5079 * first discrete movement. 5080 * 5081 * @return Returns the number of discrete movements, either positive 5082 * or negative, or 0 if there is not enough trackball movement yet 5083 * for a discrete movement. 5084 */ 5085 int generate(float precision) { 5086 int movement = 0; 5087 nonAccelMovement = 0; 5088 do { 5089 final int dir = position >= 0 ? 1 : -1; 5090 switch (step) { 5091 // If we are going to execute the first step, then we want 5092 // to do this as soon as possible instead of waiting for 5093 // a full movement, in order to make things look responsive. 5094 case 0: 5095 if (absPosition < precision) { 5096 return movement; 5097 } 5098 movement += dir; 5099 nonAccelMovement += dir; 5100 step = 1; 5101 break; 5102 // If we have generated the first movement, then we need 5103 // to wait for the second complete trackball motion before 5104 // generating the second discrete movement. 5105 case 1: 5106 if (absPosition < 2) { 5107 return movement; 5108 } 5109 movement += dir; 5110 nonAccelMovement += dir; 5111 position += dir > 0 ? -2 : 2; 5112 absPosition = Math.abs(position); 5113 step = 2; 5114 break; 5115 // After the first two, we generate discrete movements 5116 // consistently with the trackball, applying an acceleration 5117 // if the trackball is moving quickly. This is a simple 5118 // acceleration on top of what we already compute based 5119 // on how quickly the wheel is being turned, to apply 5120 // a longer increasing acceleration to continuous movement 5121 // in one direction. 5122 default: 5123 if (absPosition < 1) { 5124 return movement; 5125 } 5126 movement += dir; 5127 position += dir >= 0 ? -1 : 1; 5128 absPosition = Math.abs(position); 5129 float acc = acceleration; 5130 acc *= 1.1f; 5131 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5132 break; 5133 } 5134 } while (true); 5135 } 5136 } 5137 5138 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5139 public CalledFromWrongThreadException(String msg) { 5140 super(msg); 5141 } 5142 } 5143 5144 private SurfaceHolder mHolder = new SurfaceHolder() { 5145 // we only need a SurfaceHolder for opengl. it would be nice 5146 // to implement everything else though, especially the callback 5147 // support (opengl doesn't make use of it right now, but eventually 5148 // will). 5149 public Surface getSurface() { 5150 return mSurface; 5151 } 5152 5153 public boolean isCreating() { 5154 return false; 5155 } 5156 5157 public void addCallback(Callback callback) { 5158 } 5159 5160 public void removeCallback(Callback callback) { 5161 } 5162 5163 public void setFixedSize(int width, int height) { 5164 } 5165 5166 public void setSizeFromLayout() { 5167 } 5168 5169 public void setFormat(int format) { 5170 } 5171 5172 public void setType(int type) { 5173 } 5174 5175 public void setKeepScreenOn(boolean screenOn) { 5176 } 5177 5178 public Canvas lockCanvas() { 5179 return null; 5180 } 5181 5182 public Canvas lockCanvas(Rect dirty) { 5183 return null; 5184 } 5185 5186 public void unlockCanvasAndPost(Canvas canvas) { 5187 } 5188 public Rect getSurfaceFrame() { 5189 return null; 5190 } 5191 }; 5192 5193 static RunQueue getRunQueue() { 5194 RunQueue rq = sRunQueues.get(); 5195 if (rq != null) { 5196 return rq; 5197 } 5198 rq = new RunQueue(); 5199 sRunQueues.set(rq); 5200 return rq; 5201 } 5202 5203 /** 5204 * The run queue is used to enqueue pending work from Views when no Handler is 5205 * attached. The work is executed during the next call to performTraversals on 5206 * the thread. 5207 * @hide 5208 */ 5209 static final class RunQueue { 5210 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5211 5212 void post(Runnable action) { 5213 postDelayed(action, 0); 5214 } 5215 5216 void postDelayed(Runnable action, long delayMillis) { 5217 HandlerAction handlerAction = new HandlerAction(); 5218 handlerAction.action = action; 5219 handlerAction.delay = delayMillis; 5220 5221 synchronized (mActions) { 5222 mActions.add(handlerAction); 5223 } 5224 } 5225 5226 void removeCallbacks(Runnable action) { 5227 final HandlerAction handlerAction = new HandlerAction(); 5228 handlerAction.action = action; 5229 5230 synchronized (mActions) { 5231 final ArrayList<HandlerAction> actions = mActions; 5232 5233 while (actions.remove(handlerAction)) { 5234 // Keep going 5235 } 5236 } 5237 } 5238 5239 void executeActions(Handler handler) { 5240 synchronized (mActions) { 5241 final ArrayList<HandlerAction> actions = mActions; 5242 final int count = actions.size(); 5243 5244 for (int i = 0; i < count; i++) { 5245 final HandlerAction handlerAction = actions.get(i); 5246 handler.postDelayed(handlerAction.action, handlerAction.delay); 5247 } 5248 5249 actions.clear(); 5250 } 5251 } 5252 5253 private static class HandlerAction { 5254 Runnable action; 5255 long delay; 5256 5257 @Override 5258 public boolean equals(Object o) { 5259 if (this == o) return true; 5260 if (o == null || getClass() != o.getClass()) return false; 5261 5262 HandlerAction that = (HandlerAction) o; 5263 return !(action != null ? !action.equals(that.action) : that.action != null); 5264 5265 } 5266 5267 @Override 5268 public int hashCode() { 5269 int result = action != null ? action.hashCode() : 0; 5270 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5271 return result; 5272 } 5273 } 5274 } 5275 5276 /** 5277 * Class for managing the accessibility interaction connection 5278 * based on the global accessibility state. 5279 */ 5280 final class AccessibilityInteractionConnectionManager 5281 implements AccessibilityStateChangeListener { 5282 public void onAccessibilityStateChanged(boolean enabled) { 5283 if (enabled) { 5284 ensureConnection(); 5285 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5286 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5287 View focusedView = mView.findFocus(); 5288 if (focusedView != null && focusedView != mView) { 5289 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5290 } 5291 } 5292 } else { 5293 ensureNoConnection(); 5294 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5295 } 5296 } 5297 5298 public void ensureConnection() { 5299 if (mAttachInfo != null) { 5300 final boolean registered = 5301 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5302 if (!registered) { 5303 mAttachInfo.mAccessibilityWindowId = 5304 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5305 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5306 } 5307 } 5308 } 5309 5310 public void ensureNoConnection() { 5311 final boolean registered = 5312 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5313 if (registered) { 5314 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5315 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5316 } 5317 } 5318 } 5319 5320 /** 5321 * This class is an interface this ViewAncestor provides to the 5322 * AccessibilityManagerService to the latter can interact with 5323 * the view hierarchy in this ViewAncestor. 5324 */ 5325 static final class AccessibilityInteractionConnection 5326 extends IAccessibilityInteractionConnection.Stub { 5327 private final WeakReference<ViewRootImpl> mViewRootImpl; 5328 5329 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5330 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5331 } 5332 5333 @Override 5334 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5335 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5336 int interrogatingPid, long interrogatingTid) { 5337 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5338 if (viewRootImpl != null && viewRootImpl.mView != null) { 5339 viewRootImpl.getAccessibilityInteractionController() 5340 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5341 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5342 } else { 5343 // We cannot make the call and notify the caller so it does not wait. 5344 try { 5345 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5346 } catch (RemoteException re) { 5347 /* best effort - ignore */ 5348 } 5349 } 5350 } 5351 5352 @Override 5353 public void performAccessibilityAction(long accessibilityNodeId, int action, 5354 Bundle arguments, int interactionId, 5355 IAccessibilityInteractionConnectionCallback callback, int flags, 5356 int interogatingPid, long interrogatingTid) { 5357 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5358 if (viewRootImpl != null && viewRootImpl.mView != null) { 5359 viewRootImpl.getAccessibilityInteractionController() 5360 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5361 interactionId, callback, flags, interogatingPid, interrogatingTid); 5362 } else { 5363 // We cannot make the call and notify the caller so it does not wait. 5364 try { 5365 callback.setPerformAccessibilityActionResult(false, interactionId); 5366 } catch (RemoteException re) { 5367 /* best effort - ignore */ 5368 } 5369 } 5370 } 5371 5372 @Override 5373 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5374 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5375 int interrogatingPid, long interrogatingTid) { 5376 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5377 if (viewRootImpl != null && viewRootImpl.mView != null) { 5378 viewRootImpl.getAccessibilityInteractionController() 5379 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5380 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5381 } else { 5382 // We cannot make the call and notify the caller so it does not wait. 5383 try { 5384 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5385 } catch (RemoteException re) { 5386 /* best effort - ignore */ 5387 } 5388 } 5389 } 5390 5391 @Override 5392 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5393 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5394 int interrogatingPid, long interrogatingTid) { 5395 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5396 if (viewRootImpl != null && viewRootImpl.mView != null) { 5397 viewRootImpl.getAccessibilityInteractionController() 5398 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5399 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5400 } else { 5401 // We cannot make the call and notify the caller so it does not wait. 5402 try { 5403 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5404 } catch (RemoteException re) { 5405 /* best effort - ignore */ 5406 } 5407 } 5408 } 5409 5410 @Override 5411 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5412 IAccessibilityInteractionConnectionCallback callback, int flags, 5413 int interrogatingPid, long interrogatingTid) { 5414 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5415 if (viewRootImpl != null && viewRootImpl.mView != null) { 5416 viewRootImpl.getAccessibilityInteractionController() 5417 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5418 flags, interrogatingPid, interrogatingTid); 5419 } else { 5420 // We cannot make the call and notify the caller so it does not wait. 5421 try { 5422 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5423 } catch (RemoteException re) { 5424 /* best effort - ignore */ 5425 } 5426 } 5427 } 5428 5429 @Override 5430 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5431 IAccessibilityInteractionConnectionCallback callback, int flags, 5432 int interrogatingPid, long interrogatingTid) { 5433 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5434 if (viewRootImpl != null && viewRootImpl.mView != null) { 5435 viewRootImpl.getAccessibilityInteractionController() 5436 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5437 callback, flags, interrogatingPid, interrogatingTid); 5438 } else { 5439 // We cannot make the call and notify the caller so it does not wait. 5440 try { 5441 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5442 } catch (RemoteException re) { 5443 /* best effort - ignore */ 5444 } 5445 } 5446 } 5447 } 5448 5449 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5450 public View mSource; 5451 5452 public void run() { 5453 if (mSource != null) { 5454 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5455 mSource.resetAccessibilityStateChanged(); 5456 mSource = null; 5457 } 5458 } 5459 } 5460} 5461