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 17 package android.view; 18 19 import android.Manifest; 20 import android.animation.LayoutTransition; 21 import android.app.ActivityManagerNative; 22 import android.content.ClipDescription; 23 import android.content.ComponentCallbacks; 24 import android.content.ComponentCallbacks2; 25 import android.content.Context; 26 import android.content.pm.PackageManager; 27 import android.content.res.CompatibilityInfo; 28 import android.content.res.Configuration; 29 import android.content.res.Resources; 30 import android.graphics.Canvas; 31 import android.graphics.Paint; 32 import android.graphics.PixelFormat; 33 import android.graphics.Point; 34 import android.graphics.PointF; 35 import android.graphics.PorterDuff; 36 import android.graphics.Rect; 37 import android.graphics.Region; 38 import android.media.AudioManager; 39 import android.os.Binder; 40 import android.os.Bundle; 41 import android.os.Debug; 42 import android.os.Handler; 43 import android.os.LatencyTimer; 44 import android.os.Looper; 45 import android.os.Message; 46 import android.os.ParcelFileDescriptor; 47 import android.os.Process; 48 import android.os.RemoteException; 49 import android.os.SystemClock; 50 import android.os.SystemProperties; 51 import android.util.AndroidRuntimeException; 52 import android.util.DisplayMetrics; 53 import android.util.EventLog; 54 import android.util.Log; 55 import android.util.Pool; 56 import android.util.Poolable; 57 import android.util.PoolableManager; 58 import android.util.Pools; 59 import android.util.Slog; 60 import android.util.SparseArray; 61 import android.util.TypedValue; 62 import android.view.View.MeasureSpec; 63 import android.view.accessibility.AccessibilityEvent; 64 import android.view.accessibility.AccessibilityInteractionClient; 65 import android.view.accessibility.AccessibilityManager; 66 import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67 import android.view.accessibility.AccessibilityNodeInfo; 68 import android.view.accessibility.IAccessibilityInteractionConnection; 69 import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70 import android.view.animation.AccelerateDecelerateInterpolator; 71 import android.view.animation.Interpolator; 72 import android.view.inputmethod.InputConnection; 73 import android.view.inputmethod.InputMethodManager; 74 import android.widget.Scroller; 75 76 import com.android.internal.policy.PolicyManager; 77 import com.android.internal.view.BaseSurfaceHolder; 78 import com.android.internal.view.IInputMethodCallback; 79 import com.android.internal.view.IInputMethodSession; 80 import com.android.internal.view.RootViewSurfaceTaker; 81 82 import java.io.IOException; 83 import java.io.OutputStream; 84 import java.io.PrintWriter; 85 import java.lang.ref.WeakReference; 86 import java.util.ArrayList; 87 import java.util.List; 88 89 /** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96 @SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97 public final class ViewRootImpl extends Handler 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 private static final boolean WATCH_POINTER = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 long mLastTrackballTime = 0; 143 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 144 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 145 146 int mLastJoystickXDirection; 147 int mLastJoystickYDirection; 148 int mLastJoystickXKeyCode; 149 int mLastJoystickYKeyCode; 150 151 final int[] mTmpLocation = new int[2]; 152 153 final TypedValue mTmpValue = new TypedValue(); 154 155 final InputMethodCallback mInputMethodCallback; 156 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 157 int mPendingEventSeq = 0; 158 159 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 int mViewVisibility; 175 boolean mAppVisible = true; 176 int mOrigWindowType = -1; 177 178 // Set to true if the owner of this window is in the stopped state, 179 // so the window should no longer be active. 180 boolean mStopped = false; 181 182 boolean mLastInCompatMode = false; 183 184 SurfaceHolder.Callback2 mSurfaceHolderCallback; 185 BaseSurfaceHolder mSurfaceHolder; 186 boolean mIsCreating; 187 boolean mDrawingAllowed; 188 189 final Region mTransparentRegion; 190 final Region mPreviousTransparentRegion; 191 192 int mWidth; 193 int mHeight; 194 Rect mDirty; 195 final Rect mCurrentDirty = new Rect(); 196 final Rect mPreviousDirty = new Rect(); 197 boolean mIsAnimating; 198 199 CompatibilityInfo.Translator mTranslator; 200 201 final View.AttachInfo mAttachInfo; 202 InputChannel mInputChannel; 203 InputQueue.Callback mInputQueueCallback; 204 InputQueue mInputQueue; 205 FallbackEventHandler mFallbackEventHandler; 206 207 final Rect mTempRect; // used in the transaction to not thrash the heap. 208 final Rect mVisRect; // used to retrieve visible rect of focused view. 209 210 boolean mTraversalScheduled; 211 long mLastTraversalFinishedTimeNanos; 212 long mLastDrawDurationNanos; 213 boolean mWillDrawSoon; 214 boolean mLayoutRequested; 215 boolean mFirst; 216 boolean mReportNextDraw; 217 boolean mFullRedrawNeeded; 218 boolean mNewSurfaceNeeded; 219 boolean mHasHadWindowFocus; 220 boolean mLastWasImTarget; 221 222 boolean mWindowAttributesChanged = false; 223 int mWindowAttributesChangesFlag = 0; 224 225 // These can be accessed by any thread, must be protected with a lock. 226 // Surface can never be reassigned or cleared (use Surface.clear()). 227 private final Surface mSurface = new Surface(); 228 229 boolean mAdded; 230 boolean mAddedTouchMode; 231 232 CompatibilityInfoHolder mCompatibilityInfo; 233 234 /*package*/ int mAddNesting; 235 236 // These are accessed by multiple threads. 237 final Rect mWinFrame; // frame given by window manager. 238 239 final Rect mPendingVisibleInsets = new Rect(); 240 final Rect mPendingContentInsets = new Rect(); 241 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 242 = new ViewTreeObserver.InternalInsetsInfo(); 243 244 final Configuration mLastConfiguration = new Configuration(); 245 final Configuration mPendingConfiguration = new Configuration(); 246 247 class ResizedInfo { 248 Rect coveredInsets; 249 Rect visibleInsets; 250 Configuration newConfig; 251 } 252 253 boolean mScrollMayChange; 254 int mSoftInputMode; 255 View mLastScrolledFocus; 256 int mScrollY; 257 int mCurScrollY; 258 Scroller mScroller; 259 HardwareLayer mResizeBuffer; 260 long mResizeBufferStartTime; 261 int mResizeBufferDuration; 262 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 263 private ArrayList<LayoutTransition> mPendingTransitions; 264 265 final ViewConfiguration mViewConfiguration; 266 267 /* Drag/drop */ 268 ClipDescription mDragDescription; 269 View mCurrentDragView; 270 volatile Object mLocalDragState; 271 final PointF mDragPoint = new PointF(); 272 final PointF mLastTouchPoint = new PointF(); 273 274 private boolean mProfileRendering; 275 private Thread mRenderProfiler; 276 private volatile boolean mRenderProfilingEnabled; 277 278 // Variables to track frames per second, enabled via DEBUG_FPS flag 279 private long mFpsStartTime = -1; 280 private long mFpsPrevTime = -1; 281 private int mFpsNumFrames; 282 283 /** 284 * see {@link #playSoundEffect(int)} 285 */ 286 AudioManager mAudioManager; 287 288 final AccessibilityManager mAccessibilityManager; 289 290 AccessibilityInteractionController mAccessibilityInteractionContrtoller; 291 292 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 293 294 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 295 296 private final int mDensity; 297 298 /** 299 * Consistency verifier for debugging purposes. 300 */ 301 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 302 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 303 new InputEventConsistencyVerifier(this, 0) : null; 304 305 public static IWindowSession getWindowSession(Looper mainLooper) { 306 synchronized (mStaticInit) { 307 if (!mInitialized) { 308 try { 309 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 310 sWindowSession = Display.getWindowManager().openSession( 311 imm.getClient(), imm.getInputContext()); 312 mInitialized = true; 313 } catch (RemoteException e) { 314 } 315 } 316 return sWindowSession; 317 } 318 } 319 320 static final class SystemUiVisibilityInfo { 321 int seq; 322 int globalVisibility; 323 int localValue; 324 int localChanges; 325 } 326 327 public ViewRootImpl(Context context) { 328 super(); 329 330 if (MEASURE_LATENCY) { 331 if (lt == null) { 332 lt = new LatencyTimer(100, 1000); 333 } 334 } 335 336 // Initialize the statics when this class is first instantiated. This is 337 // done here instead of in the static block because Zygote does not 338 // allow the spawning of threads. 339 getWindowSession(context.getMainLooper()); 340 341 mThread = Thread.currentThread(); 342 mLocation = new WindowLeaked(null); 343 mLocation.fillInStackTrace(); 344 mWidth = -1; 345 mHeight = -1; 346 mDirty = new Rect(); 347 mTempRect = new Rect(); 348 mVisRect = new Rect(); 349 mWinFrame = new Rect(); 350 mWindow = new W(this); 351 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 352 mInputMethodCallback = new InputMethodCallback(this); 353 mViewVisibility = View.GONE; 354 mTransparentRegion = new Region(); 355 mPreviousTransparentRegion = new Region(); 356 mFirst = true; // true for the first time the view is added 357 mAdded = false; 358 mAccessibilityManager = AccessibilityManager.getInstance(context); 359 mAccessibilityInteractionConnectionManager = 360 new AccessibilityInteractionConnectionManager(); 361 mAccessibilityManager.addAccessibilityStateChangeListener( 362 mAccessibilityInteractionConnectionManager); 363 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 364 mViewConfiguration = ViewConfiguration.get(context); 365 mDensity = context.getResources().getDisplayMetrics().densityDpi; 366 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 367 mProfileRendering = Boolean.parseBoolean( 368 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 369 } 370 371 public static void addFirstDrawHandler(Runnable callback) { 372 synchronized (sFirstDrawHandlers) { 373 if (!sFirstDrawComplete) { 374 sFirstDrawHandlers.add(callback); 375 } 376 } 377 } 378 379 public static void addConfigCallback(ComponentCallbacks callback) { 380 synchronized (sConfigCallbacks) { 381 sConfigCallbacks.add(callback); 382 } 383 } 384 385 // FIXME for perf testing only 386 private boolean mProfile = false; 387 388 /** 389 * Call this to profile the next traversal call. 390 * FIXME for perf testing only. Remove eventually 391 */ 392 public void profile() { 393 mProfile = true; 394 } 395 396 /** 397 * Indicates whether we are in touch mode. Calling this method triggers an IPC 398 * call and should be avoided whenever possible. 399 * 400 * @return True, if the device is in touch mode, false otherwise. 401 * 402 * @hide 403 */ 404 static boolean isInTouchMode() { 405 if (mInitialized) { 406 try { 407 return sWindowSession.getInTouchMode(); 408 } catch (RemoteException e) { 409 } 410 } 411 return false; 412 } 413 414 /** 415 * We have one child 416 */ 417 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 418 synchronized (this) { 419 if (mView == null) { 420 mView = view; 421 mFallbackEventHandler.setView(view); 422 mWindowAttributes.copyFrom(attrs); 423 attrs = mWindowAttributes; 424 425 if (view instanceof RootViewSurfaceTaker) { 426 mSurfaceHolderCallback = 427 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 428 if (mSurfaceHolderCallback != null) { 429 mSurfaceHolder = new TakenSurfaceHolder(); 430 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 431 } 432 } 433 434 // If the application owns the surface, don't enable hardware acceleration 435 if (mSurfaceHolder == null) { 436 enableHardwareAcceleration(attrs); 437 } 438 439 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 440 mTranslator = compatibilityInfo.getTranslator(); 441 442 if (mTranslator != null) { 443 mSurface.setCompatibilityTranslator(mTranslator); 444 } 445 446 boolean restore = false; 447 if (mTranslator != null) { 448 restore = true; 449 attrs.backup(); 450 mTranslator.translateWindowLayout(attrs); 451 } 452 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 453 454 if (!compatibilityInfo.supportsScreen()) { 455 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 456 mLastInCompatMode = true; 457 } 458 459 mSoftInputMode = attrs.softInputMode; 460 mWindowAttributesChanged = true; 461 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 462 mAttachInfo.mRootView = view; 463 mAttachInfo.mScalingRequired = mTranslator != null; 464 mAttachInfo.mApplicationScale = 465 mTranslator == null ? 1.0f : mTranslator.applicationScale; 466 if (panelParentView != null) { 467 mAttachInfo.mPanelParentWindowToken 468 = panelParentView.getApplicationWindowToken(); 469 } 470 mAdded = true; 471 int res; /* = WindowManagerImpl.ADD_OKAY; */ 472 473 // Schedule the first layout -before- adding to the window 474 // manager, to make sure we do the relayout before receiving 475 // any other events from the system. 476 requestLayout(); 477 if ((mWindowAttributes.inputFeatures 478 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 479 mInputChannel = new InputChannel(); 480 } 481 try { 482 mOrigWindowType = mWindowAttributes.type; 483 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 484 getHostVisibility(), mAttachInfo.mContentInsets, 485 mInputChannel); 486 } catch (RemoteException e) { 487 mAdded = false; 488 mView = null; 489 mAttachInfo.mRootView = null; 490 mInputChannel = null; 491 mFallbackEventHandler.setView(null); 492 unscheduleTraversals(); 493 throw new RuntimeException("Adding window failed", e); 494 } finally { 495 if (restore) { 496 attrs.restore(); 497 } 498 } 499 500 if (mTranslator != null) { 501 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 502 } 503 mPendingContentInsets.set(mAttachInfo.mContentInsets); 504 mPendingVisibleInsets.set(0, 0, 0, 0); 505 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 506 if (res < WindowManagerImpl.ADD_OKAY) { 507 mView = null; 508 mAttachInfo.mRootView = null; 509 mAdded = false; 510 mFallbackEventHandler.setView(null); 511 unscheduleTraversals(); 512 switch (res) { 513 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 514 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 515 throw new WindowManagerImpl.BadTokenException( 516 "Unable to add window -- token " + attrs.token 517 + " is not valid; is your activity running?"); 518 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 519 throw new WindowManagerImpl.BadTokenException( 520 "Unable to add window -- token " + attrs.token 521 + " is not for an application"); 522 case WindowManagerImpl.ADD_APP_EXITING: 523 throw new WindowManagerImpl.BadTokenException( 524 "Unable to add window -- app for token " + attrs.token 525 + " is exiting"); 526 case WindowManagerImpl.ADD_DUPLICATE_ADD: 527 throw new WindowManagerImpl.BadTokenException( 528 "Unable to add window -- window " + mWindow 529 + " has already been added"); 530 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 531 // Silently ignore -- we would have just removed it 532 // right away, anyway. 533 return; 534 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 535 throw new WindowManagerImpl.BadTokenException( 536 "Unable to add window " + mWindow + 537 " -- another window of this type already exists"); 538 case WindowManagerImpl.ADD_PERMISSION_DENIED: 539 throw new WindowManagerImpl.BadTokenException( 540 "Unable to add window " + mWindow + 541 " -- permission denied for this window type"); 542 } 543 throw new RuntimeException( 544 "Unable to add window -- unknown error code " + res); 545 } 546 547 if (view instanceof RootViewSurfaceTaker) { 548 mInputQueueCallback = 549 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 550 } 551 if (mInputChannel != null) { 552 if (mInputQueueCallback != null) { 553 mInputQueue = new InputQueue(mInputChannel); 554 mInputQueueCallback.onInputQueueCreated(mInputQueue); 555 } else { 556 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 557 Looper.myQueue()); 558 } 559 } 560 561 view.assignParent(this); 562 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 563 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 564 565 if (mAccessibilityManager.isEnabled()) { 566 mAccessibilityInteractionConnectionManager.ensureConnection(); 567 } 568 } 569 } 570 } 571 572 private void destroyHardwareResources() { 573 if (mAttachInfo.mHardwareRenderer != null) { 574 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 575 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 576 } 577 mAttachInfo.mHardwareRenderer.destroy(false); 578 } 579 } 580 581 void destroyHardwareLayers() { 582 if (mThread != Thread.currentThread()) { 583 if (mAttachInfo.mHardwareRenderer != null && 584 mAttachInfo.mHardwareRenderer.isEnabled()) { 585 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 586 } 587 } else { 588 if (mAttachInfo.mHardwareRenderer != null && 589 mAttachInfo.mHardwareRenderer.isEnabled()) { 590 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 591 } 592 } 593 } 594 595 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 596 mAttachInfo.mHardwareAccelerated = false; 597 mAttachInfo.mHardwareAccelerationRequested = false; 598 599 // Try to enable hardware acceleration if requested 600 final boolean hardwareAccelerated = 601 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 602 603 if (hardwareAccelerated) { 604 if (!HardwareRenderer.isAvailable()) { 605 return; 606 } 607 608 // Persistent processes (including the system) should not do 609 // accelerated rendering on low-end devices. In that case, 610 // sRendererDisabled will be set. In addition, the system process 611 // itself should never do accelerated rendering. In that case, both 612 // sRendererDisabled and sSystemRendererDisabled are set. When 613 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 614 // can be used by code on the system process to escape that and enable 615 // HW accelerated drawing. (This is basically for the lock screen.) 616 617 final boolean fakeHwAccelerated = (attrs.privateFlags & 618 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 619 final boolean forceHwAccelerated = (attrs.privateFlags & 620 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 621 622 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 623 && forceHwAccelerated)) { 624 // Don't enable hardware acceleration when we're not on the main thread 625 if (!HardwareRenderer.sSystemRendererDisabled 626 && Looper.getMainLooper() != Looper.myLooper()) { 627 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 628 + "acceleration outside of the main thread, aborting"); 629 return; 630 } 631 632 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 633 if (mAttachInfo.mHardwareRenderer != null) { 634 mAttachInfo.mHardwareRenderer.destroy(true); 635 } 636 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 637 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 638 = mAttachInfo.mHardwareRenderer != null; 639 } else if (fakeHwAccelerated) { 640 // The window had wanted to use hardware acceleration, but this 641 // is not allowed in its process. By setting this flag, it can 642 // still render as if it was accelerated. This is basically for 643 // the preview windows the window manager shows for launching 644 // applications, so they will look more like the app being launched. 645 mAttachInfo.mHardwareAccelerationRequested = true; 646 } 647 } 648 } 649 650 public View getView() { 651 return mView; 652 } 653 654 final WindowLeaked getLocation() { 655 return mLocation; 656 } 657 658 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 659 synchronized (this) { 660 int oldSoftInputMode = mWindowAttributes.softInputMode; 661 // preserve compatible window flag if exists. 662 int compatibleWindowFlag = 663 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 664 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 665 mWindowAttributes.flags |= compatibleWindowFlag; 666 667 if (newView) { 668 mSoftInputMode = attrs.softInputMode; 669 requestLayout(); 670 } 671 // Don't lose the mode we last auto-computed. 672 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 673 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 674 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 675 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 676 | (oldSoftInputMode 677 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 678 } 679 mWindowAttributesChanged = true; 680 scheduleTraversals(); 681 } 682 } 683 684 void handleAppVisibility(boolean visible) { 685 if (mAppVisible != visible) { 686 mAppVisible = visible; 687 scheduleTraversals(); 688 } 689 } 690 691 void handleGetNewSurface() { 692 mNewSurfaceNeeded = true; 693 mFullRedrawNeeded = true; 694 scheduleTraversals(); 695 } 696 697 /** 698 * {@inheritDoc} 699 */ 700 public void requestLayout() { 701 checkThread(); 702 mLayoutRequested = true; 703 scheduleTraversals(); 704 } 705 706 /** 707 * {@inheritDoc} 708 */ 709 public boolean isLayoutRequested() { 710 return mLayoutRequested; 711 } 712 713 public void invalidateChild(View child, Rect dirty) { 714 checkThread(); 715 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 716 if (dirty == null) { 717 // Fast invalidation for GL-enabled applications; GL must redraw everything 718 invalidate(); 719 return; 720 } 721 if (mCurScrollY != 0 || mTranslator != null) { 722 mTempRect.set(dirty); 723 dirty = mTempRect; 724 if (mCurScrollY != 0) { 725 dirty.offset(0, -mCurScrollY); 726 } 727 if (mTranslator != null) { 728 mTranslator.translateRectInAppWindowToScreen(dirty); 729 } 730 if (mAttachInfo.mScalingRequired) { 731 dirty.inset(-1, -1); 732 } 733 } 734 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 735 mAttachInfo.mSetIgnoreDirtyState = true; 736 mAttachInfo.mIgnoreDirtyState = true; 737 } 738 mDirty.union(dirty); 739 if (!mWillDrawSoon) { 740 scheduleTraversals(); 741 } 742 } 743 744 void invalidate() { 745 mDirty.set(0, 0, mWidth, mHeight); 746 scheduleTraversals(); 747 } 748 749 void setStopped(boolean stopped) { 750 if (mStopped != stopped) { 751 mStopped = stopped; 752 if (!stopped) { 753 scheduleTraversals(); 754 } 755 } 756 } 757 758 public ViewParent getParent() { 759 return null; 760 } 761 762 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 763 invalidateChild(null, dirty); 764 return null; 765 } 766 767 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 768 if (child != mView) { 769 throw new RuntimeException("child is not mine, honest!"); 770 } 771 // Note: don't apply scroll offset, because we want to know its 772 // visibility in the virtual canvas being given to the view hierarchy. 773 return r.intersect(0, 0, mWidth, mHeight); 774 } 775 776 public void bringChildToFront(View child) { 777 } 778 779 public void scheduleTraversals() { 780 if (!mTraversalScheduled) { 781 mTraversalScheduled = true; 782 783 //noinspection ConstantConditions 784 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 785 final long now = System.nanoTime(); 786 Log.d(TAG, "Latency: Scheduled traversal, it has been " 787 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 788 + "ms since the last traversal finished."); 789 } 790 791 sendEmptyMessage(DO_TRAVERSAL); 792 } 793 } 794 795 public void unscheduleTraversals() { 796 if (mTraversalScheduled) { 797 mTraversalScheduled = false; 798 removeMessages(DO_TRAVERSAL); 799 } 800 } 801 802 int getHostVisibility() { 803 return mAppVisible ? mView.getVisibility() : View.GONE; 804 } 805 806 void disposeResizeBuffer() { 807 if (mResizeBuffer != null) { 808 mResizeBuffer.destroy(); 809 mResizeBuffer = null; 810 } 811 } 812 813 /** 814 * Add LayoutTransition to the list of transitions to be started in the next traversal. 815 * This list will be cleared after the transitions on the list are start()'ed. These 816 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 817 * happens during the layout phase of traversal, which we want to complete before any of the 818 * animations are started (because those animations may side-effect properties that layout 819 * depends upon, like the bounding rectangles of the affected views). So we add the transition 820 * to the list and it is started just prior to starting the drawing phase of traversal. 821 * 822 * @param transition The LayoutTransition to be started on the next traversal. 823 * 824 * @hide 825 */ 826 public void requestTransitionStart(LayoutTransition transition) { 827 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 828 if (mPendingTransitions == null) { 829 mPendingTransitions = new ArrayList<LayoutTransition>(); 830 } 831 mPendingTransitions.add(transition); 832 } 833 } 834 835 private void performTraversals() { 836 // cache mView since it is used so much below... 837 final View host = mView; 838 839 if (DBG) { 840 System.out.println("======================================"); 841 System.out.println("performTraversals"); 842 host.debug(); 843 } 844 845 if (host == null || !mAdded) 846 return; 847 848 mTraversalScheduled = false; 849 mWillDrawSoon = true; 850 boolean windowSizeMayChange = false; 851 boolean fullRedrawNeeded = mFullRedrawNeeded; 852 boolean newSurface = false; 853 boolean surfaceChanged = false; 854 WindowManager.LayoutParams lp = mWindowAttributes; 855 856 int desiredWindowWidth; 857 int desiredWindowHeight; 858 int childWidthMeasureSpec; 859 int childHeightMeasureSpec; 860 861 final View.AttachInfo attachInfo = mAttachInfo; 862 863 final int viewVisibility = getHostVisibility(); 864 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 865 || mNewSurfaceNeeded; 866 867 WindowManager.LayoutParams params = null; 868 int windowAttributesChanges = 0; 869 if (mWindowAttributesChanged) { 870 mWindowAttributesChanged = false; 871 surfaceChanged = true; 872 params = lp; 873 windowAttributesChanges = mWindowAttributesChangesFlag; 874 } 875 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 876 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 877 params = lp; 878 fullRedrawNeeded = true; 879 mLayoutRequested = true; 880 if (mLastInCompatMode) { 881 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 882 mLastInCompatMode = false; 883 } else { 884 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 885 mLastInCompatMode = true; 886 } 887 } 888 889 mWindowAttributesChangesFlag = 0; 890 891 Rect frame = mWinFrame; 892 if (mFirst) { 893 fullRedrawNeeded = true; 894 mLayoutRequested = true; 895 896 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 897 // NOTE -- system code, won't try to do compat mode. 898 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 899 Point size = new Point(); 900 disp.getRealSize(size); 901 desiredWindowWidth = size.x; 902 desiredWindowHeight = size.y; 903 } else { 904 DisplayMetrics packageMetrics = 905 mView.getContext().getResources().getDisplayMetrics(); 906 desiredWindowWidth = packageMetrics.widthPixels; 907 desiredWindowHeight = packageMetrics.heightPixels; 908 } 909 910 // For the very first time, tell the view hierarchy that it 911 // is attached to the window. Note that at this point the surface 912 // object is not initialized to its backing store, but soon it 913 // will be (assuming the window is visible). 914 attachInfo.mSurface = mSurface; 915 // We used to use the following condition to choose 32 bits drawing caches: 916 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 917 // However, windows are now always 32 bits by default, so choose 32 bits 918 attachInfo.mUse32BitDrawingCache = true; 919 attachInfo.mHasWindowFocus = false; 920 attachInfo.mWindowVisibility = viewVisibility; 921 attachInfo.mRecomputeGlobalAttributes = false; 922 attachInfo.mKeepScreenOn = false; 923 attachInfo.mSystemUiVisibility = 0; 924 viewVisibilityChanged = false; 925 mLastConfiguration.setTo(host.getResources().getConfiguration()); 926 host.dispatchAttachedToWindow(attachInfo, 0); 927 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 928 929 host.fitSystemWindows(mAttachInfo.mContentInsets); 930 931 } else { 932 desiredWindowWidth = frame.width(); 933 desiredWindowHeight = frame.height(); 934 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 935 if (DEBUG_ORIENTATION) Log.v(TAG, 936 "View " + host + " resized to: " + frame); 937 fullRedrawNeeded = true; 938 mLayoutRequested = true; 939 windowSizeMayChange = true; 940 } 941 } 942 943 if (viewVisibilityChanged) { 944 attachInfo.mWindowVisibility = viewVisibility; 945 host.dispatchWindowVisibilityChanged(viewVisibility); 946 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 947 destroyHardwareResources(); 948 } 949 if (viewVisibility == View.GONE) { 950 // After making a window gone, we will count it as being 951 // shown for the first time the next time it gets focus. 952 mHasHadWindowFocus = false; 953 } 954 } 955 956 boolean insetsChanged = false; 957 958 if (mLayoutRequested && !mStopped) { 959 // Execute enqueued actions on every layout in case a view that was detached 960 // enqueued an action after being detached 961 getRunQueue().executeActions(attachInfo.mHandler); 962 963 final Resources res = mView.getContext().getResources(); 964 965 if (mFirst) { 966 // make sure touch mode code executes by setting cached value 967 // to opposite of the added touch mode. 968 mAttachInfo.mInTouchMode = !mAddedTouchMode; 969 ensureTouchModeLocally(mAddedTouchMode); 970 } else { 971 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 972 insetsChanged = true; 973 } 974 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 975 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 976 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 977 + mAttachInfo.mVisibleInsets); 978 } 979 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 980 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 981 windowSizeMayChange = true; 982 983 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 984 // NOTE -- system code, won't try to do compat mode. 985 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 986 Point size = new Point(); 987 disp.getRealSize(size); 988 desiredWindowWidth = size.x; 989 desiredWindowHeight = size.y; 990 } else { 991 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 992 desiredWindowWidth = packageMetrics.widthPixels; 993 desiredWindowHeight = packageMetrics.heightPixels; 994 } 995 } 996 } 997 998 // Ask host how big it wants to be 999 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1000 "Measuring " + host + " in display " + desiredWindowWidth 1001 + "x" + desiredWindowHeight + "..."); 1002 1003 boolean goodMeasure = false; 1004 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1005 // On large screens, we don't want to allow dialogs to just 1006 // stretch to fill the entire width of the screen to display 1007 // one line of text. First try doing the layout at a smaller 1008 // size to see if it will fit. 1009 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1010 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1011 int baseSize = 0; 1012 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1013 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1014 } 1015 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1016 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1017 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1018 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1019 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1020 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1021 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1022 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1023 goodMeasure = true; 1024 } else { 1025 // Didn't fit in that size... try expanding a bit. 1026 baseSize = (baseSize+desiredWindowWidth)/2; 1027 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1028 + baseSize); 1029 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1030 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1031 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1032 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1033 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1034 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1035 goodMeasure = true; 1036 } 1037 } 1038 } 1039 } 1040 1041 if (!goodMeasure) { 1042 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1043 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1044 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1045 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1046 windowSizeMayChange = true; 1047 } 1048 } 1049 1050 if (DBG) { 1051 System.out.println("======================================"); 1052 System.out.println("performTraversals -- after measure"); 1053 host.debug(); 1054 } 1055 } 1056 1057 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1058 //Log.i(TAG, "Computing view hierarchy attributes!"); 1059 attachInfo.mRecomputeGlobalAttributes = false; 1060 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1061 int oldVis = attachInfo.mSystemUiVisibility; 1062 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1063 attachInfo.mKeepScreenOn = false; 1064 attachInfo.mSystemUiVisibility = 0; 1065 attachInfo.mHasSystemUiListeners = false; 1066 host.dispatchCollectViewAttributes(0); 1067 if (attachInfo.mKeepScreenOn != oldScreenOn 1068 || attachInfo.mSystemUiVisibility != oldVis 1069 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1070 params = lp; 1071 } 1072 } 1073 if (attachInfo.mForceReportNewAttributes) { 1074 attachInfo.mForceReportNewAttributes = false; 1075 params = lp; 1076 } 1077 1078 if (mFirst || attachInfo.mViewVisibilityChanged) { 1079 attachInfo.mViewVisibilityChanged = false; 1080 int resizeMode = mSoftInputMode & 1081 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1082 // If we are in auto resize mode, then we need to determine 1083 // what mode to use now. 1084 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1085 final int N = attachInfo.mScrollContainers.size(); 1086 for (int i=0; i<N; i++) { 1087 if (attachInfo.mScrollContainers.get(i).isShown()) { 1088 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1089 } 1090 } 1091 if (resizeMode == 0) { 1092 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1093 } 1094 if ((lp.softInputMode & 1095 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1096 lp.softInputMode = (lp.softInputMode & 1097 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1098 resizeMode; 1099 params = lp; 1100 } 1101 } 1102 } 1103 1104 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1105 if (!PixelFormat.formatHasAlpha(params.format)) { 1106 params.format = PixelFormat.TRANSLUCENT; 1107 } 1108 } 1109 1110 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1111 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1112 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1113 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1114 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1115 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1116 1117 final boolean computesInternalInsets = 1118 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1119 1120 boolean insetsPending = false; 1121 int relayoutResult = 0; 1122 1123 if (mFirst || windowShouldResize || insetsChanged || 1124 viewVisibilityChanged || params != null) { 1125 1126 if (viewVisibility == View.VISIBLE) { 1127 // If this window is giving internal insets to the window 1128 // manager, and it is being added or changing its visibility, 1129 // then we want to first give the window manager "fake" 1130 // insets to cause it to effectively ignore the content of 1131 // the window during layout. This avoids it briefly causing 1132 // other windows to resize/move based on the raw frame of the 1133 // window, waiting until we can finish laying out this window 1134 // and get back to the window manager with the ultimately 1135 // computed insets. 1136 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1137 } 1138 1139 if (mSurfaceHolder != null) { 1140 mSurfaceHolder.mSurfaceLock.lock(); 1141 mDrawingAllowed = true; 1142 } 1143 1144 boolean hwInitialized = false; 1145 boolean contentInsetsChanged = false; 1146 boolean visibleInsetsChanged; 1147 boolean hadSurface = mSurface.isValid(); 1148 1149 try { 1150 int fl = 0; 1151 if (params != null) { 1152 fl = params.flags; 1153 if (attachInfo.mKeepScreenOn) { 1154 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1155 } 1156 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1157 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1158 } 1159 if (DEBUG_LAYOUT) { 1160 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1161 host.getMeasuredHeight() + ", params=" + params); 1162 } 1163 1164 final int surfaceGenerationId = mSurface.getGenerationId(); 1165 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1166 1167 if (params != null) { 1168 params.flags = fl; 1169 } 1170 1171 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1172 + " content=" + mPendingContentInsets.toShortString() 1173 + " visible=" + mPendingVisibleInsets.toShortString() 1174 + " surface=" + mSurface); 1175 1176 if (mPendingConfiguration.seq != 0) { 1177 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1178 + mPendingConfiguration); 1179 updateConfiguration(mPendingConfiguration, !mFirst); 1180 mPendingConfiguration.seq = 0; 1181 } 1182 1183 contentInsetsChanged = !mPendingContentInsets.equals( 1184 mAttachInfo.mContentInsets); 1185 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1186 mAttachInfo.mVisibleInsets); 1187 if (contentInsetsChanged) { 1188 if (mWidth > 0 && mHeight > 0 && 1189 mSurface != null && mSurface.isValid() && 1190 !mAttachInfo.mTurnOffWindowResizeAnim && 1191 mAttachInfo.mHardwareRenderer != null && 1192 mAttachInfo.mHardwareRenderer.isEnabled() && 1193 mAttachInfo.mHardwareRenderer.validate() && 1194 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1195 1196 disposeResizeBuffer(); 1197 1198 boolean completed = false; 1199 HardwareCanvas canvas = null; 1200 try { 1201 if (mResizeBuffer == null) { 1202 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1203 mWidth, mHeight, false); 1204 } else if (mResizeBuffer.getWidth() != mWidth || 1205 mResizeBuffer.getHeight() != mHeight) { 1206 mResizeBuffer.resize(mWidth, mHeight); 1207 } 1208 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1209 canvas.setViewport(mWidth, mHeight); 1210 canvas.onPreDraw(null); 1211 final int restoreCount = canvas.save(); 1212 1213 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1214 1215 int yoff; 1216 final boolean scrolling = mScroller != null 1217 && mScroller.computeScrollOffset(); 1218 if (scrolling) { 1219 yoff = mScroller.getCurrY(); 1220 mScroller.abortAnimation(); 1221 } else { 1222 yoff = mScrollY; 1223 } 1224 1225 canvas.translate(0, -yoff); 1226 if (mTranslator != null) { 1227 mTranslator.translateCanvas(canvas); 1228 } 1229 1230 mView.draw(canvas); 1231 1232 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1233 mResizeBufferDuration = mView.getResources().getInteger( 1234 com.android.internal.R.integer.config_mediumAnimTime); 1235 completed = true; 1236 1237 canvas.restoreToCount(restoreCount); 1238 } catch (OutOfMemoryError e) { 1239 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1240 } finally { 1241 if (canvas != null) { 1242 canvas.onPostDraw(); 1243 } 1244 if (mResizeBuffer != null) { 1245 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1246 if (!completed) { 1247 mResizeBuffer.destroy(); 1248 mResizeBuffer = null; 1249 } 1250 } 1251 } 1252 } 1253 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1254 host.fitSystemWindows(mAttachInfo.mContentInsets); 1255 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1256 + mAttachInfo.mContentInsets); 1257 } 1258 if (visibleInsetsChanged) { 1259 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1260 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1261 + mAttachInfo.mVisibleInsets); 1262 } 1263 1264 if (!hadSurface) { 1265 if (mSurface.isValid()) { 1266 // If we are creating a new surface, then we need to 1267 // completely redraw it. Also, when we get to the 1268 // point of drawing it we will hold off and schedule 1269 // a new traversal instead. This is so we can tell the 1270 // window manager about all of the windows being displayed 1271 // before actually drawing them, so it can display then 1272 // all at once. 1273 newSurface = true; 1274 fullRedrawNeeded = true; 1275 mPreviousTransparentRegion.setEmpty(); 1276 1277 if (mAttachInfo.mHardwareRenderer != null) { 1278 try { 1279 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1280 } catch (Surface.OutOfResourcesException e) { 1281 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1282 try { 1283 if (!sWindowSession.outOfMemory(mWindow)) { 1284 Slog.w(TAG, "No processes killed for memory; killing self"); 1285 Process.killProcess(Process.myPid()); 1286 } 1287 } catch (RemoteException ex) { 1288 } 1289 mLayoutRequested = true; // ask wm for a new surface next time. 1290 return; 1291 } 1292 } 1293 } 1294 } else if (!mSurface.isValid()) { 1295 // If the surface has been removed, then reset the scroll 1296 // positions. 1297 mLastScrolledFocus = null; 1298 mScrollY = mCurScrollY = 0; 1299 if (mScroller != null) { 1300 mScroller.abortAnimation(); 1301 } 1302 disposeResizeBuffer(); 1303 // Our surface is gone 1304 if (mAttachInfo.mHardwareRenderer != null && 1305 mAttachInfo.mHardwareRenderer.isEnabled()) { 1306 mAttachInfo.mHardwareRenderer.destroy(true); 1307 } 1308 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1309 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1310 fullRedrawNeeded = true; 1311 try { 1312 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1313 } catch (Surface.OutOfResourcesException e) { 1314 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1315 try { 1316 if (!sWindowSession.outOfMemory(mWindow)) { 1317 Slog.w(TAG, "No processes killed for memory; killing self"); 1318 Process.killProcess(Process.myPid()); 1319 } 1320 } catch (RemoteException ex) { 1321 } 1322 mLayoutRequested = true; // ask wm for a new surface next time. 1323 return; 1324 } 1325 } 1326 } catch (RemoteException e) { 1327 } 1328 1329 if (DEBUG_ORIENTATION) Log.v( 1330 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1331 1332 attachInfo.mWindowLeft = frame.left; 1333 attachInfo.mWindowTop = frame.top; 1334 1335 // !!FIXME!! This next section handles the case where we did not get the 1336 // window size we asked for. We should avoid this by getting a maximum size from 1337 // the window session beforehand. 1338 mWidth = frame.width(); 1339 mHeight = frame.height(); 1340 1341 if (mSurfaceHolder != null) { 1342 // The app owns the surface; tell it about what is going on. 1343 if (mSurface.isValid()) { 1344 // XXX .copyFrom() doesn't work! 1345 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1346 mSurfaceHolder.mSurface = mSurface; 1347 } 1348 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1349 mSurfaceHolder.mSurfaceLock.unlock(); 1350 if (mSurface.isValid()) { 1351 if (!hadSurface) { 1352 mSurfaceHolder.ungetCallbacks(); 1353 1354 mIsCreating = true; 1355 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1356 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1357 if (callbacks != null) { 1358 for (SurfaceHolder.Callback c : callbacks) { 1359 c.surfaceCreated(mSurfaceHolder); 1360 } 1361 } 1362 surfaceChanged = true; 1363 } 1364 if (surfaceChanged) { 1365 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1366 lp.format, mWidth, mHeight); 1367 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1368 if (callbacks != null) { 1369 for (SurfaceHolder.Callback c : callbacks) { 1370 c.surfaceChanged(mSurfaceHolder, lp.format, 1371 mWidth, mHeight); 1372 } 1373 } 1374 } 1375 mIsCreating = false; 1376 } else if (hadSurface) { 1377 mSurfaceHolder.ungetCallbacks(); 1378 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1379 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1380 if (callbacks != null) { 1381 for (SurfaceHolder.Callback c : callbacks) { 1382 c.surfaceDestroyed(mSurfaceHolder); 1383 } 1384 } 1385 mSurfaceHolder.mSurfaceLock.lock(); 1386 try { 1387 mSurfaceHolder.mSurface = new Surface(); 1388 } finally { 1389 mSurfaceHolder.mSurfaceLock.unlock(); 1390 } 1391 } 1392 } 1393 1394 if (mAttachInfo.mHardwareRenderer != null && 1395 mAttachInfo.mHardwareRenderer.isEnabled()) { 1396 if (hwInitialized || windowShouldResize || 1397 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1398 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1399 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1400 if (!hwInitialized) { 1401 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1402 } 1403 } 1404 } 1405 1406 if (!mStopped) { 1407 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1408 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1409 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1410 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1411 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1412 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1413 1414 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1415 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1416 + " mHeight=" + mHeight 1417 + " measuredHeight=" + host.getMeasuredHeight() 1418 + " coveredInsetsChanged=" + contentInsetsChanged); 1419 1420 // Ask host how big it wants to be 1421 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1422 1423 // Implementation of weights from WindowManager.LayoutParams 1424 // We just grow the dimensions as needed and re-measure if 1425 // needs be 1426 int width = host.getMeasuredWidth(); 1427 int height = host.getMeasuredHeight(); 1428 boolean measureAgain = false; 1429 1430 if (lp.horizontalWeight > 0.0f) { 1431 width += (int) ((mWidth - width) * lp.horizontalWeight); 1432 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1433 MeasureSpec.EXACTLY); 1434 measureAgain = true; 1435 } 1436 if (lp.verticalWeight > 0.0f) { 1437 height += (int) ((mHeight - height) * lp.verticalWeight); 1438 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1439 MeasureSpec.EXACTLY); 1440 measureAgain = true; 1441 } 1442 1443 if (measureAgain) { 1444 if (DEBUG_LAYOUT) Log.v(TAG, 1445 "And hey let's measure once more: width=" + width 1446 + " height=" + height); 1447 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1448 } 1449 1450 mLayoutRequested = true; 1451 } 1452 } 1453 } 1454 1455 final boolean didLayout = mLayoutRequested && !mStopped; 1456 boolean triggerGlobalLayoutListener = didLayout 1457 || attachInfo.mRecomputeGlobalAttributes; 1458 if (didLayout) { 1459 mLayoutRequested = false; 1460 mScrollMayChange = true; 1461 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1462 TAG, "Laying out " + host + " to (" + 1463 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1464 long startTime = 0L; 1465 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1466 startTime = SystemClock.elapsedRealtime(); 1467 } 1468 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1469 1470 if (false && ViewDebug.consistencyCheckEnabled) { 1471 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1472 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1473 + "please refer to the logs with the tag " 1474 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1475 } 1476 } 1477 1478 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1479 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1480 } 1481 1482 // By this point all views have been sized and positionned 1483 // We can compute the transparent area 1484 1485 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1486 // start out transparent 1487 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1488 host.getLocationInWindow(mTmpLocation); 1489 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1490 mTmpLocation[0] + host.mRight - host.mLeft, 1491 mTmpLocation[1] + host.mBottom - host.mTop); 1492 1493 host.gatherTransparentRegion(mTransparentRegion); 1494 if (mTranslator != null) { 1495 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1496 } 1497 1498 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1499 mPreviousTransparentRegion.set(mTransparentRegion); 1500 // reconfigure window manager 1501 try { 1502 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1503 } catch (RemoteException e) { 1504 } 1505 } 1506 } 1507 1508 if (DBG) { 1509 System.out.println("======================================"); 1510 System.out.println("performTraversals -- after setFrame"); 1511 host.debug(); 1512 } 1513 } 1514 1515 if (triggerGlobalLayoutListener) { 1516 attachInfo.mRecomputeGlobalAttributes = false; 1517 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1518 1519 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1520 postSendWindowContentChangedCallback(); 1521 } 1522 } 1523 1524 if (computesInternalInsets) { 1525 // Clear the original insets. 1526 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1527 insets.reset(); 1528 1529 // Compute new insets in place. 1530 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1531 1532 // Tell the window manager. 1533 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1534 mLastGivenInsets.set(insets); 1535 1536 // Translate insets to screen coordinates if needed. 1537 final Rect contentInsets; 1538 final Rect visibleInsets; 1539 final Region touchableRegion; 1540 if (mTranslator != null) { 1541 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1542 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1543 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1544 } else { 1545 contentInsets = insets.contentInsets; 1546 visibleInsets = insets.visibleInsets; 1547 touchableRegion = insets.touchableRegion; 1548 } 1549 1550 try { 1551 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1552 contentInsets, visibleInsets, touchableRegion); 1553 } catch (RemoteException e) { 1554 } 1555 } 1556 } 1557 1558 if (mFirst) { 1559 // handle first focus request 1560 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1561 + mView.hasFocus()); 1562 if (mView != null) { 1563 if (!mView.hasFocus()) { 1564 mView.requestFocus(View.FOCUS_FORWARD); 1565 mFocusedView = mRealFocusedView = mView.findFocus(); 1566 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1567 + mFocusedView); 1568 } else { 1569 mRealFocusedView = mView.findFocus(); 1570 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1571 + mRealFocusedView); 1572 } 1573 } 1574 } 1575 1576 mFirst = false; 1577 mWillDrawSoon = false; 1578 mNewSurfaceNeeded = false; 1579 mViewVisibility = viewVisibility; 1580 1581 if (mAttachInfo.mHasWindowFocus) { 1582 final boolean imTarget = WindowManager.LayoutParams 1583 .mayUseInputMethod(mWindowAttributes.flags); 1584 if (imTarget != mLastWasImTarget) { 1585 mLastWasImTarget = imTarget; 1586 InputMethodManager imm = InputMethodManager.peekInstance(); 1587 if (imm != null && imTarget) { 1588 imm.startGettingWindowFocus(mView); 1589 imm.onWindowFocus(mView, mView.findFocus(), 1590 mWindowAttributes.softInputMode, 1591 !mHasHadWindowFocus, mWindowAttributes.flags); 1592 } 1593 } 1594 } 1595 1596 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1597 viewVisibility != View.VISIBLE; 1598 1599 if (!cancelDraw && !newSurface) { 1600 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1601 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1602 mPendingTransitions.get(i).startChangingAnimations(); 1603 } 1604 mPendingTransitions.clear(); 1605 } 1606 mFullRedrawNeeded = false; 1607 1608 final long drawStartTime; 1609 if (ViewDebug.DEBUG_LATENCY) { 1610 drawStartTime = System.nanoTime(); 1611 } 1612 1613 draw(fullRedrawNeeded); 1614 1615 if (ViewDebug.DEBUG_LATENCY) { 1616 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1617 } 1618 1619 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1620 || mReportNextDraw) { 1621 if (LOCAL_LOGV) { 1622 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1623 } 1624 mReportNextDraw = false; 1625 if (mSurfaceHolder != null && mSurface.isValid()) { 1626 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1627 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1628 if (callbacks != null) { 1629 for (SurfaceHolder.Callback c : callbacks) { 1630 if (c instanceof SurfaceHolder.Callback2) { 1631 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1632 mSurfaceHolder); 1633 } 1634 } 1635 } 1636 } 1637 try { 1638 sWindowSession.finishDrawing(mWindow); 1639 } catch (RemoteException e) { 1640 } 1641 } 1642 } else { 1643 // End any pending transitions on this non-visible window 1644 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1645 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1646 mPendingTransitions.get(i).endChangingAnimations(); 1647 } 1648 mPendingTransitions.clear(); 1649 } 1650 // We were supposed to report when we are done drawing. Since we canceled the 1651 // draw, remember it here. 1652 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1653 mReportNextDraw = true; 1654 } 1655 if (fullRedrawNeeded) { 1656 mFullRedrawNeeded = true; 1657 } 1658 1659 if (viewVisibility == View.VISIBLE) { 1660 // Try again 1661 scheduleTraversals(); 1662 } 1663 } 1664 } 1665 1666 public void requestTransparentRegion(View child) { 1667 // the test below should not fail unless someone is messing with us 1668 checkThread(); 1669 if (mView == child) { 1670 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1671 // Need to make sure we re-evaluate the window attributes next 1672 // time around, to ensure the window has the correct format. 1673 mWindowAttributesChanged = true; 1674 mWindowAttributesChangesFlag = 0; 1675 requestLayout(); 1676 } 1677 } 1678 1679 /** 1680 * Figures out the measure spec for the root view in a window based on it's 1681 * layout params. 1682 * 1683 * @param windowSize 1684 * The available width or height of the window 1685 * 1686 * @param rootDimension 1687 * The layout params for one dimension (width or height) of the 1688 * window. 1689 * 1690 * @return The measure spec to use to measure the root view. 1691 */ 1692 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1693 int measureSpec; 1694 switch (rootDimension) { 1695 1696 case ViewGroup.LayoutParams.MATCH_PARENT: 1697 // Window can't resize. Force root view to be windowSize. 1698 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1699 break; 1700 case ViewGroup.LayoutParams.WRAP_CONTENT: 1701 // Window can resize. Set max size for root view. 1702 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1703 break; 1704 default: 1705 // Window wants to be an exact size. Force root view to be that size. 1706 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1707 break; 1708 } 1709 return measureSpec; 1710 } 1711 1712 int mHardwareYOffset; 1713 int mResizeAlpha; 1714 final Paint mResizePaint = new Paint(); 1715 1716 public void onHardwarePreDraw(HardwareCanvas canvas) { 1717 canvas.translate(0, -mHardwareYOffset); 1718 } 1719 1720 public void onHardwarePostDraw(HardwareCanvas canvas) { 1721 if (mResizeBuffer != null) { 1722 mResizePaint.setAlpha(mResizeAlpha); 1723 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1724 } 1725 } 1726 1727 /** 1728 * @hide 1729 */ 1730 void outputDisplayList(View view) { 1731 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1732 DisplayList displayList = view.getDisplayList(); 1733 if (displayList != null) { 1734 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1735 } 1736 } 1737 } 1738 1739 /** 1740 * @see #PROPERTY_PROFILE_RENDERING 1741 */ 1742 private void profileRendering(boolean enabled) { 1743 if (mProfileRendering) { 1744 mRenderProfilingEnabled = enabled; 1745 if (mRenderProfiler == null) { 1746 mRenderProfiler = new Thread(new Runnable() { 1747 @Override 1748 public void run() { 1749 Log.d(TAG, "Starting profiling thread"); 1750 while (mRenderProfilingEnabled) { 1751 mAttachInfo.mHandler.post(new Runnable() { 1752 @Override 1753 public void run() { 1754 mDirty.set(0, 0, mWidth, mHeight); 1755 scheduleTraversals(); 1756 } 1757 }); 1758 try { 1759 // TODO: This should use vsync when we get an API 1760 Thread.sleep(15); 1761 } catch (InterruptedException e) { 1762 Log.d(TAG, "Exiting profiling thread"); 1763 } 1764 } 1765 } 1766 }, "Rendering Profiler"); 1767 mRenderProfiler.start(); 1768 } else { 1769 mRenderProfiler.interrupt(); 1770 mRenderProfiler = null; 1771 } 1772 } 1773 } 1774 1775 /** 1776 * Called from draw() when DEBUG_FPS is enabled 1777 */ 1778 private void trackFPS() { 1779 // Tracks frames per second drawn. First value in a series of draws may be bogus 1780 // because it down not account for the intervening idle time 1781 long nowTime = System.currentTimeMillis(); 1782 if (mFpsStartTime < 0) { 1783 mFpsStartTime = mFpsPrevTime = nowTime; 1784 mFpsNumFrames = 0; 1785 } else { 1786 ++mFpsNumFrames; 1787 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1788 long frameTime = nowTime - mFpsPrevTime; 1789 long totalTime = nowTime - mFpsStartTime; 1790 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1791 mFpsPrevTime = nowTime; 1792 if (totalTime > 1000) { 1793 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1794 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1795 mFpsStartTime = nowTime; 1796 mFpsNumFrames = 0; 1797 } 1798 } 1799 } 1800 1801 private void draw(boolean fullRedrawNeeded) { 1802 Surface surface = mSurface; 1803 if (surface == null || !surface.isValid()) { 1804 return; 1805 } 1806 1807 if (DEBUG_FPS) { 1808 trackFPS(); 1809 } 1810 1811 if (!sFirstDrawComplete) { 1812 synchronized (sFirstDrawHandlers) { 1813 sFirstDrawComplete = true; 1814 final int count = sFirstDrawHandlers.size(); 1815 for (int i = 0; i< count; i++) { 1816 post(sFirstDrawHandlers.get(i)); 1817 } 1818 } 1819 } 1820 1821 scrollToRectOrFocus(null, false); 1822 1823 if (mAttachInfo.mViewScrollChanged) { 1824 mAttachInfo.mViewScrollChanged = false; 1825 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1826 } 1827 1828 int yoff; 1829 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1830 if (animating) { 1831 yoff = mScroller.getCurrY(); 1832 } else { 1833 yoff = mScrollY; 1834 } 1835 if (mCurScrollY != yoff) { 1836 mCurScrollY = yoff; 1837 fullRedrawNeeded = true; 1838 } 1839 float appScale = mAttachInfo.mApplicationScale; 1840 boolean scalingRequired = mAttachInfo.mScalingRequired; 1841 1842 int resizeAlpha = 0; 1843 if (mResizeBuffer != null) { 1844 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1845 if (deltaTime < mResizeBufferDuration) { 1846 float amt = deltaTime/(float) mResizeBufferDuration; 1847 amt = mResizeInterpolator.getInterpolation(amt); 1848 animating = true; 1849 resizeAlpha = 255 - (int)(amt*255); 1850 } else { 1851 disposeResizeBuffer(); 1852 } 1853 } 1854 1855 Rect dirty = mDirty; 1856 if (mSurfaceHolder != null) { 1857 // The app owns the surface, we won't draw. 1858 dirty.setEmpty(); 1859 if (animating) { 1860 if (mScroller != null) { 1861 mScroller.abortAnimation(); 1862 } 1863 disposeResizeBuffer(); 1864 } 1865 return; 1866 } 1867 1868 if (fullRedrawNeeded) { 1869 mAttachInfo.mIgnoreDirtyState = true; 1870 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1871 } 1872 1873 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1874 if (!dirty.isEmpty() || mIsAnimating) { 1875 mIsAnimating = false; 1876 mHardwareYOffset = yoff; 1877 mResizeAlpha = resizeAlpha; 1878 1879 mCurrentDirty.set(dirty); 1880 mCurrentDirty.union(mPreviousDirty); 1881 mPreviousDirty.set(dirty); 1882 dirty.setEmpty(); 1883 1884 Rect currentDirty = mCurrentDirty; 1885 if (animating) { 1886 currentDirty = null; 1887 } 1888 1889 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1890 mPreviousDirty.set(0, 0, mWidth, mHeight); 1891 } 1892 } 1893 1894 if (animating) { 1895 mFullRedrawNeeded = true; 1896 scheduleTraversals(); 1897 } 1898 1899 return; 1900 } 1901 1902 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1903 Log.v(TAG, "Draw " + mView + "/" 1904 + mWindowAttributes.getTitle() 1905 + ": dirty={" + dirty.left + "," + dirty.top 1906 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1907 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1908 appScale + ", width=" + mWidth + ", height=" + mHeight); 1909 } 1910 1911 if (!dirty.isEmpty() || mIsAnimating) { 1912 Canvas canvas; 1913 try { 1914 int left = dirty.left; 1915 int top = dirty.top; 1916 int right = dirty.right; 1917 int bottom = dirty.bottom; 1918 1919 final long lockCanvasStartTime; 1920 if (ViewDebug.DEBUG_LATENCY) { 1921 lockCanvasStartTime = System.nanoTime(); 1922 } 1923 1924 canvas = surface.lockCanvas(dirty); 1925 1926 if (ViewDebug.DEBUG_LATENCY) { 1927 long now = System.nanoTime(); 1928 Log.d(TAG, "Latency: Spent " 1929 + ((now - lockCanvasStartTime) * 0.000001f) 1930 + "ms waiting for surface.lockCanvas()"); 1931 } 1932 1933 if (left != dirty.left || top != dirty.top || right != dirty.right || 1934 bottom != dirty.bottom) { 1935 mAttachInfo.mIgnoreDirtyState = true; 1936 } 1937 1938 // TODO: Do this in native 1939 canvas.setDensity(mDensity); 1940 } catch (Surface.OutOfResourcesException e) { 1941 Log.e(TAG, "OutOfResourcesException locking surface", e); 1942 try { 1943 if (!sWindowSession.outOfMemory(mWindow)) { 1944 Slog.w(TAG, "No processes killed for memory; killing self"); 1945 Process.killProcess(Process.myPid()); 1946 } 1947 } catch (RemoteException ex) { 1948 } 1949 mLayoutRequested = true; // ask wm for a new surface next time. 1950 return; 1951 } catch (IllegalArgumentException e) { 1952 Log.e(TAG, "IllegalArgumentException locking surface", e); 1953 // Don't assume this is due to out of memory, it could be 1954 // something else, and if it is something else then we could 1955 // kill stuff (or ourself) for no reason. 1956 mLayoutRequested = true; // ask wm for a new surface next time. 1957 return; 1958 } 1959 1960 try { 1961 if (!dirty.isEmpty() || mIsAnimating) { 1962 long startTime = 0L; 1963 1964 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1965 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1966 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1967 //canvas.drawARGB(255, 255, 0, 0); 1968 } 1969 1970 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1971 startTime = SystemClock.elapsedRealtime(); 1972 } 1973 1974 // If this bitmap's format includes an alpha channel, we 1975 // need to clear it before drawing so that the child will 1976 // properly re-composite its drawing on a transparent 1977 // background. This automatically respects the clip/dirty region 1978 // or 1979 // If we are applying an offset, we need to clear the area 1980 // where the offset doesn't appear to avoid having garbage 1981 // left in the blank areas. 1982 if (!canvas.isOpaque() || yoff != 0) { 1983 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 1984 } 1985 1986 dirty.setEmpty(); 1987 mIsAnimating = false; 1988 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 1989 mView.mPrivateFlags |= View.DRAWN; 1990 1991 if (DEBUG_DRAW) { 1992 Context cxt = mView.getContext(); 1993 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 1994 ", metrics=" + cxt.getResources().getDisplayMetrics() + 1995 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 1996 } 1997 try { 1998 canvas.translate(0, -yoff); 1999 if (mTranslator != null) { 2000 mTranslator.translateCanvas(canvas); 2001 } 2002 canvas.setScreenDensity(scalingRequired 2003 ? DisplayMetrics.DENSITY_DEVICE : 0); 2004 mAttachInfo.mSetIgnoreDirtyState = false; 2005 mView.draw(canvas); 2006 } finally { 2007 if (!mAttachInfo.mSetIgnoreDirtyState) { 2008 // Only clear the flag if it was not set during the mView.draw() call 2009 mAttachInfo.mIgnoreDirtyState = false; 2010 } 2011 } 2012 2013 if (false && ViewDebug.consistencyCheckEnabled) { 2014 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2015 } 2016 2017 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2018 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2019 } 2020 } 2021 2022 } finally { 2023 surface.unlockCanvasAndPost(canvas); 2024 } 2025 } 2026 2027 if (LOCAL_LOGV) { 2028 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2029 } 2030 2031 if (animating) { 2032 mFullRedrawNeeded = true; 2033 scheduleTraversals(); 2034 } 2035 } 2036 2037 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2038 final View.AttachInfo attachInfo = mAttachInfo; 2039 final Rect ci = attachInfo.mContentInsets; 2040 final Rect vi = attachInfo.mVisibleInsets; 2041 int scrollY = 0; 2042 boolean handled = false; 2043 2044 if (vi.left > ci.left || vi.top > ci.top 2045 || vi.right > ci.right || vi.bottom > ci.bottom) { 2046 // We'll assume that we aren't going to change the scroll 2047 // offset, since we want to avoid that unless it is actually 2048 // going to make the focus visible... otherwise we scroll 2049 // all over the place. 2050 scrollY = mScrollY; 2051 // We can be called for two different situations: during a draw, 2052 // to update the scroll position if the focus has changed (in which 2053 // case 'rectangle' is null), or in response to a 2054 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2055 // is non-null and we just want to scroll to whatever that 2056 // rectangle is). 2057 View focus = mRealFocusedView; 2058 2059 // When in touch mode, focus points to the previously focused view, 2060 // which may have been removed from the view hierarchy. The following 2061 // line checks whether the view is still in our hierarchy. 2062 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2063 mRealFocusedView = null; 2064 return false; 2065 } 2066 2067 if (focus != mLastScrolledFocus) { 2068 // If the focus has changed, then ignore any requests to scroll 2069 // to a rectangle; first we want to make sure the entire focus 2070 // view is visible. 2071 rectangle = null; 2072 } 2073 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2074 + " rectangle=" + rectangle + " ci=" + ci 2075 + " vi=" + vi); 2076 if (focus == mLastScrolledFocus && !mScrollMayChange 2077 && rectangle == null) { 2078 // Optimization: if the focus hasn't changed since last 2079 // time, and no layout has happened, then just leave things 2080 // as they are. 2081 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2082 + mScrollY + " vi=" + vi.toShortString()); 2083 } else if (focus != null) { 2084 // We need to determine if the currently focused view is 2085 // within the visible part of the window and, if not, apply 2086 // a pan so it can be seen. 2087 mLastScrolledFocus = focus; 2088 mScrollMayChange = false; 2089 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2090 // Try to find the rectangle from the focus view. 2091 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2092 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2093 + mView.getWidth() + " h=" + mView.getHeight() 2094 + " ci=" + ci.toShortString() 2095 + " vi=" + vi.toShortString()); 2096 if (rectangle == null) { 2097 focus.getFocusedRect(mTempRect); 2098 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2099 + ": focusRect=" + mTempRect.toShortString()); 2100 if (mView instanceof ViewGroup) { 2101 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2102 focus, mTempRect); 2103 } 2104 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2105 "Focus in window: focusRect=" 2106 + mTempRect.toShortString() 2107 + " visRect=" + mVisRect.toShortString()); 2108 } else { 2109 mTempRect.set(rectangle); 2110 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2111 "Request scroll to rect: " 2112 + mTempRect.toShortString() 2113 + " visRect=" + mVisRect.toShortString()); 2114 } 2115 if (mTempRect.intersect(mVisRect)) { 2116 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2117 "Focus window visible rect: " 2118 + mTempRect.toShortString()); 2119 if (mTempRect.height() > 2120 (mView.getHeight()-vi.top-vi.bottom)) { 2121 // If the focus simply is not going to fit, then 2122 // best is probably just to leave things as-is. 2123 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2124 "Too tall; leaving scrollY=" + scrollY); 2125 } else if ((mTempRect.top-scrollY) < vi.top) { 2126 scrollY -= vi.top - (mTempRect.top-scrollY); 2127 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2128 "Top covered; scrollY=" + scrollY); 2129 } else if ((mTempRect.bottom-scrollY) 2130 > (mView.getHeight()-vi.bottom)) { 2131 scrollY += (mTempRect.bottom-scrollY) 2132 - (mView.getHeight()-vi.bottom); 2133 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2134 "Bottom covered; scrollY=" + scrollY); 2135 } 2136 handled = true; 2137 } 2138 } 2139 } 2140 } 2141 2142 if (scrollY != mScrollY) { 2143 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2144 + mScrollY + " , new=" + scrollY); 2145 if (!immediate && mResizeBuffer == null) { 2146 if (mScroller == null) { 2147 mScroller = new Scroller(mView.getContext()); 2148 } 2149 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2150 } else if (mScroller != null) { 2151 mScroller.abortAnimation(); 2152 } 2153 mScrollY = scrollY; 2154 } 2155 2156 return handled; 2157 } 2158 2159 public void requestChildFocus(View child, View focused) { 2160 checkThread(); 2161 if (mFocusedView != focused) { 2162 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2163 scheduleTraversals(); 2164 } 2165 mFocusedView = mRealFocusedView = focused; 2166 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2167 + mFocusedView); 2168 } 2169 2170 public void clearChildFocus(View child) { 2171 checkThread(); 2172 2173 View oldFocus = mFocusedView; 2174 2175 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2176 mFocusedView = mRealFocusedView = null; 2177 if (mView != null && !mView.hasFocus()) { 2178 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2179 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2180 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2181 } 2182 } else if (oldFocus != null) { 2183 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2184 } 2185 } 2186 2187 2188 public void focusableViewAvailable(View v) { 2189 checkThread(); 2190 2191 if (mView != null) { 2192 if (!mView.hasFocus()) { 2193 v.requestFocus(); 2194 } else { 2195 // the one case where will transfer focus away from the current one 2196 // is if the current view is a view group that prefers to give focus 2197 // to its children first AND the view is a descendant of it. 2198 mFocusedView = mView.findFocus(); 2199 boolean descendantsHaveDibsOnFocus = 2200 (mFocusedView instanceof ViewGroup) && 2201 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2202 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2203 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2204 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2205 v.requestFocus(); 2206 } 2207 } 2208 } 2209 } 2210 2211 public void recomputeViewAttributes(View child) { 2212 checkThread(); 2213 if (mView == child) { 2214 mAttachInfo.mRecomputeGlobalAttributes = true; 2215 if (!mWillDrawSoon) { 2216 scheduleTraversals(); 2217 } 2218 } 2219 } 2220 2221 void dispatchDetachedFromWindow() { 2222 if (mView != null && mView.mAttachInfo != null) { 2223 if (mAttachInfo.mHardwareRenderer != null && 2224 mAttachInfo.mHardwareRenderer.isEnabled()) { 2225 mAttachInfo.mHardwareRenderer.validate(); 2226 } 2227 mView.dispatchDetachedFromWindow(); 2228 } 2229 2230 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2231 mAccessibilityManager.removeAccessibilityStateChangeListener( 2232 mAccessibilityInteractionConnectionManager); 2233 removeSendWindowContentChangedCallback(); 2234 2235 mView = null; 2236 mAttachInfo.mRootView = null; 2237 mAttachInfo.mSurface = null; 2238 2239 destroyHardwareRenderer(); 2240 2241 mSurface.release(); 2242 2243 if (mInputQueueCallback != null && mInputQueue != null) { 2244 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2245 mInputQueueCallback = null; 2246 mInputQueue = null; 2247 } else if (mInputChannel != null) { 2248 InputQueue.unregisterInputChannel(mInputChannel); 2249 } 2250 try { 2251 sWindowSession.remove(mWindow); 2252 } catch (RemoteException e) { 2253 } 2254 2255 // Dispose the input channel after removing the window so the Window Manager 2256 // doesn't interpret the input channel being closed as an abnormal termination. 2257 if (mInputChannel != null) { 2258 mInputChannel.dispose(); 2259 mInputChannel = null; 2260 } 2261 } 2262 2263 void updateConfiguration(Configuration config, boolean force) { 2264 if (DEBUG_CONFIGURATION) Log.v(TAG, 2265 "Applying new config to window " 2266 + mWindowAttributes.getTitle() 2267 + ": " + config); 2268 2269 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2270 if (ci != null) { 2271 config = new Configuration(config); 2272 ci.applyToConfiguration(config); 2273 } 2274 2275 synchronized (sConfigCallbacks) { 2276 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2277 sConfigCallbacks.get(i).onConfigurationChanged(config); 2278 } 2279 } 2280 if (mView != null) { 2281 // At this point the resources have been updated to 2282 // have the most recent config, whatever that is. Use 2283 // the on in them which may be newer. 2284 config = mView.getResources().getConfiguration(); 2285 if (force || mLastConfiguration.diff(config) != 0) { 2286 mLastConfiguration.setTo(config); 2287 mView.dispatchConfigurationChanged(config); 2288 } 2289 } 2290 } 2291 2292 /** 2293 * Return true if child is an ancestor of parent, (or equal to the parent). 2294 */ 2295 private static boolean isViewDescendantOf(View child, View parent) { 2296 if (child == parent) { 2297 return true; 2298 } 2299 2300 final ViewParent theParent = child.getParent(); 2301 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2302 } 2303 2304 private static void forceLayout(View view) { 2305 view.forceLayout(); 2306 if (view instanceof ViewGroup) { 2307 ViewGroup group = (ViewGroup) view; 2308 final int count = group.getChildCount(); 2309 for (int i = 0; i < count; i++) { 2310 forceLayout(group.getChildAt(i)); 2311 } 2312 } 2313 } 2314 2315 public final static int DO_TRAVERSAL = 1000; 2316 public final static int DIE = 1001; 2317 public final static int RESIZED = 1002; 2318 public final static int RESIZED_REPORT = 1003; 2319 public final static int WINDOW_FOCUS_CHANGED = 1004; 2320 public final static int DISPATCH_KEY = 1005; 2321 public final static int DISPATCH_POINTER = 1006; 2322 public final static int DISPATCH_TRACKBALL = 1007; 2323 public final static int DISPATCH_APP_VISIBILITY = 1008; 2324 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2325 public final static int FINISHED_EVENT = 1010; 2326 public final static int DISPATCH_KEY_FROM_IME = 1011; 2327 public final static int FINISH_INPUT_CONNECTION = 1012; 2328 public final static int CHECK_FOCUS = 1013; 2329 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2330 public final static int DISPATCH_DRAG_EVENT = 1015; 2331 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2332 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2333 public final static int DISPATCH_GENERIC_MOTION = 1018; 2334 public final static int UPDATE_CONFIGURATION = 1019; 2335 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2336 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2337 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2338 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT = 1023; 2339 2340 @Override 2341 public String getMessageName(Message message) { 2342 switch (message.what) { 2343 case DO_TRAVERSAL: 2344 return "DO_TRAVERSAL"; 2345 case DIE: 2346 return "DIE"; 2347 case RESIZED: 2348 return "RESIZED"; 2349 case RESIZED_REPORT: 2350 return "RESIZED_REPORT"; 2351 case WINDOW_FOCUS_CHANGED: 2352 return "WINDOW_FOCUS_CHANGED"; 2353 case DISPATCH_KEY: 2354 return "DISPATCH_KEY"; 2355 case DISPATCH_POINTER: 2356 return "DISPATCH_POINTER"; 2357 case DISPATCH_TRACKBALL: 2358 return "DISPATCH_TRACKBALL"; 2359 case DISPATCH_APP_VISIBILITY: 2360 return "DISPATCH_APP_VISIBILITY"; 2361 case DISPATCH_GET_NEW_SURFACE: 2362 return "DISPATCH_GET_NEW_SURFACE"; 2363 case FINISHED_EVENT: 2364 return "FINISHED_EVENT"; 2365 case DISPATCH_KEY_FROM_IME: 2366 return "DISPATCH_KEY_FROM_IME"; 2367 case FINISH_INPUT_CONNECTION: 2368 return "FINISH_INPUT_CONNECTION"; 2369 case CHECK_FOCUS: 2370 return "CHECK_FOCUS"; 2371 case CLOSE_SYSTEM_DIALOGS: 2372 return "CLOSE_SYSTEM_DIALOGS"; 2373 case DISPATCH_DRAG_EVENT: 2374 return "DISPATCH_DRAG_EVENT"; 2375 case DISPATCH_DRAG_LOCATION_EVENT: 2376 return "DISPATCH_DRAG_LOCATION_EVENT"; 2377 case DISPATCH_SYSTEM_UI_VISIBILITY: 2378 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2379 case DISPATCH_GENERIC_MOTION: 2380 return "DISPATCH_GENERIC_MOTION"; 2381 case UPDATE_CONFIGURATION: 2382 return "UPDATE_CONFIGURATION"; 2383 case DO_PERFORM_ACCESSIBILITY_ACTION: 2384 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2385 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2386 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2387 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2388 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2389 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: 2390 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT"; 2391 2392 } 2393 return super.getMessageName(message); 2394 } 2395 2396 @Override 2397 public void handleMessage(Message msg) { 2398 switch (msg.what) { 2399 case View.AttachInfo.INVALIDATE_MSG: 2400 ((View) msg.obj).invalidate(); 2401 break; 2402 case View.AttachInfo.INVALIDATE_RECT_MSG: 2403 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2404 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2405 info.release(); 2406 break; 2407 case DO_TRAVERSAL: 2408 if (mProfile) { 2409 Debug.startMethodTracing("ViewAncestor"); 2410 } 2411 2412 final long traversalStartTime; 2413 if (ViewDebug.DEBUG_LATENCY) { 2414 traversalStartTime = System.nanoTime(); 2415 mLastDrawDurationNanos = 0; 2416 } 2417 2418 performTraversals(); 2419 2420 if (ViewDebug.DEBUG_LATENCY) { 2421 long now = System.nanoTime(); 2422 Log.d(TAG, "Latency: Spent " 2423 + ((now - traversalStartTime) * 0.000001f) 2424 + "ms in performTraversals(), with " 2425 + (mLastDrawDurationNanos * 0.000001f) 2426 + "ms of that time in draw()"); 2427 mLastTraversalFinishedTimeNanos = now; 2428 } 2429 2430 if (mProfile) { 2431 Debug.stopMethodTracing(); 2432 mProfile = false; 2433 } 2434 break; 2435 case FINISHED_EVENT: 2436 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2437 break; 2438 case DISPATCH_KEY: 2439 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2440 break; 2441 case DISPATCH_POINTER: 2442 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2443 break; 2444 case DISPATCH_TRACKBALL: 2445 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2446 break; 2447 case DISPATCH_GENERIC_MOTION: 2448 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2449 break; 2450 case DISPATCH_APP_VISIBILITY: 2451 handleAppVisibility(msg.arg1 != 0); 2452 break; 2453 case DISPATCH_GET_NEW_SURFACE: 2454 handleGetNewSurface(); 2455 break; 2456 case RESIZED: 2457 ResizedInfo ri = (ResizedInfo)msg.obj; 2458 2459 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2460 && mPendingContentInsets.equals(ri.coveredInsets) 2461 && mPendingVisibleInsets.equals(ri.visibleInsets) 2462 && ((ResizedInfo)msg.obj).newConfig == null) { 2463 break; 2464 } 2465 // fall through... 2466 case RESIZED_REPORT: 2467 if (mAdded) { 2468 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2469 if (config != null) { 2470 updateConfiguration(config, false); 2471 } 2472 mWinFrame.left = 0; 2473 mWinFrame.right = msg.arg1; 2474 mWinFrame.top = 0; 2475 mWinFrame.bottom = msg.arg2; 2476 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2477 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2478 if (msg.what == RESIZED_REPORT) { 2479 mReportNextDraw = true; 2480 } 2481 2482 if (mView != null) { 2483 forceLayout(mView); 2484 } 2485 requestLayout(); 2486 } 2487 break; 2488 case WINDOW_FOCUS_CHANGED: { 2489 if (mAdded) { 2490 boolean hasWindowFocus = msg.arg1 != 0; 2491 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2492 2493 profileRendering(hasWindowFocus); 2494 2495 if (hasWindowFocus) { 2496 boolean inTouchMode = msg.arg2 != 0; 2497 ensureTouchModeLocally(inTouchMode); 2498 2499 if (mAttachInfo.mHardwareRenderer != null && 2500 mSurface != null && mSurface.isValid()) { 2501 mFullRedrawNeeded = true; 2502 try { 2503 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2504 mAttachInfo, mHolder); 2505 } catch (Surface.OutOfResourcesException e) { 2506 Log.e(TAG, "OutOfResourcesException locking surface", e); 2507 try { 2508 if (!sWindowSession.outOfMemory(mWindow)) { 2509 Slog.w(TAG, "No processes killed for memory; killing self"); 2510 Process.killProcess(Process.myPid()); 2511 } 2512 } catch (RemoteException ex) { 2513 } 2514 // Retry in a bit. 2515 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2516 return; 2517 } 2518 } 2519 } 2520 2521 mLastWasImTarget = WindowManager.LayoutParams 2522 .mayUseInputMethod(mWindowAttributes.flags); 2523 2524 InputMethodManager imm = InputMethodManager.peekInstance(); 2525 if (mView != null) { 2526 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2527 imm.startGettingWindowFocus(mView); 2528 } 2529 mAttachInfo.mKeyDispatchState.reset(); 2530 mView.dispatchWindowFocusChanged(hasWindowFocus); 2531 } 2532 2533 // Note: must be done after the focus change callbacks, 2534 // so all of the view state is set up correctly. 2535 if (hasWindowFocus) { 2536 if (imm != null && mLastWasImTarget) { 2537 imm.onWindowFocus(mView, mView.findFocus(), 2538 mWindowAttributes.softInputMode, 2539 !mHasHadWindowFocus, mWindowAttributes.flags); 2540 } 2541 // Clear the forward bit. We can just do this directly, since 2542 // the window manager doesn't care about it. 2543 mWindowAttributes.softInputMode &= 2544 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2545 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2546 .softInputMode &= 2547 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2548 mHasHadWindowFocus = true; 2549 } 2550 2551 if (hasWindowFocus && mView != null) { 2552 sendAccessibilityEvents(); 2553 } 2554 } 2555 } break; 2556 case DIE: 2557 doDie(); 2558 break; 2559 case DISPATCH_KEY_FROM_IME: { 2560 if (LOCAL_LOGV) Log.v( 2561 TAG, "Dispatching key " 2562 + msg.obj + " from IME to " + mView); 2563 KeyEvent event = (KeyEvent)msg.obj; 2564 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2565 // The IME is trying to say this event is from the 2566 // system! Bad bad bad! 2567 //noinspection UnusedAssignment 2568 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2569 } 2570 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2571 } break; 2572 case FINISH_INPUT_CONNECTION: { 2573 InputMethodManager imm = InputMethodManager.peekInstance(); 2574 if (imm != null) { 2575 imm.reportFinishInputConnection((InputConnection)msg.obj); 2576 } 2577 } break; 2578 case CHECK_FOCUS: { 2579 InputMethodManager imm = InputMethodManager.peekInstance(); 2580 if (imm != null) { 2581 imm.checkFocus(); 2582 } 2583 } break; 2584 case CLOSE_SYSTEM_DIALOGS: { 2585 if (mView != null) { 2586 mView.onCloseSystemDialogs((String)msg.obj); 2587 } 2588 } break; 2589 case DISPATCH_DRAG_EVENT: 2590 case DISPATCH_DRAG_LOCATION_EVENT: { 2591 DragEvent event = (DragEvent)msg.obj; 2592 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2593 handleDragEvent(event); 2594 } break; 2595 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2596 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2597 } break; 2598 case UPDATE_CONFIGURATION: { 2599 Configuration config = (Configuration)msg.obj; 2600 if (config.isOtherSeqNewer(mLastConfiguration)) { 2601 config = mLastConfiguration; 2602 } 2603 updateConfiguration(config, false); 2604 } break; 2605 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2606 if (mView != null) { 2607 getAccessibilityInteractionController() 2608 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2609 } 2610 } break; 2611 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2612 if (mView != null) { 2613 getAccessibilityInteractionController() 2614 .perfromAccessibilityActionUiThread(msg); 2615 } 2616 } break; 2617 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2618 if (mView != null) { 2619 getAccessibilityInteractionController() 2620 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2621 } 2622 } break; 2623 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT: { 2624 if (mView != null) { 2625 getAccessibilityInteractionController() 2626 .findAccessibilityNodeInfosByViewTextUiThread(msg); 2627 } 2628 } break; 2629 } 2630 } 2631 2632 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2633 if (mFinishedCallback != null) { 2634 Slog.w(TAG, "Received a new input event from the input queue but there is " 2635 + "already an unfinished input event in progress."); 2636 } 2637 2638 if (ViewDebug.DEBUG_LATENCY) { 2639 mInputEventReceiveTimeNanos = System.nanoTime(); 2640 mInputEventDeliverTimeNanos = 0; 2641 mInputEventDeliverPostImeTimeNanos = 0; 2642 } 2643 2644 mFinishedCallback = finishedCallback; 2645 } 2646 2647 private void finishInputEvent(InputEvent event, boolean handled) { 2648 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2649 2650 if (mFinishedCallback == null) { 2651 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2652 + "is finished but there is no input event actually in progress."); 2653 return; 2654 } 2655 2656 if (ViewDebug.DEBUG_LATENCY) { 2657 final long now = System.nanoTime(); 2658 final long eventTime = event.getEventTimeNano(); 2659 final StringBuilder msg = new StringBuilder(); 2660 msg.append("Latency: Spent "); 2661 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2662 msg.append("ms processing "); 2663 if (event instanceof KeyEvent) { 2664 final KeyEvent keyEvent = (KeyEvent)event; 2665 msg.append("key event, action="); 2666 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2667 } else { 2668 final MotionEvent motionEvent = (MotionEvent)event; 2669 msg.append("motion event, action="); 2670 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2671 msg.append(", historySize="); 2672 msg.append(motionEvent.getHistorySize()); 2673 } 2674 msg.append(", handled="); 2675 msg.append(handled); 2676 msg.append(", received at +"); 2677 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2678 if (mInputEventDeliverTimeNanos != 0) { 2679 msg.append("ms, delivered at +"); 2680 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2681 } 2682 if (mInputEventDeliverPostImeTimeNanos != 0) { 2683 msg.append("ms, delivered post IME at +"); 2684 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2685 } 2686 msg.append("ms, finished at +"); 2687 msg.append((now - eventTime) * 0.000001f); 2688 msg.append("ms."); 2689 Log.d(TAG, msg.toString()); 2690 } 2691 2692 mFinishedCallback.finished(handled); 2693 mFinishedCallback = null; 2694 } 2695 2696 /** 2697 * Something in the current window tells us we need to change the touch mode. For 2698 * example, we are not in touch mode, and the user touches the screen. 2699 * 2700 * If the touch mode has changed, tell the window manager, and handle it locally. 2701 * 2702 * @param inTouchMode Whether we want to be in touch mode. 2703 * @return True if the touch mode changed and focus changed was changed as a result 2704 */ 2705 boolean ensureTouchMode(boolean inTouchMode) { 2706 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2707 + "touch mode is " + mAttachInfo.mInTouchMode); 2708 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2709 2710 // tell the window manager 2711 try { 2712 sWindowSession.setInTouchMode(inTouchMode); 2713 } catch (RemoteException e) { 2714 throw new RuntimeException(e); 2715 } 2716 2717 // handle the change 2718 return ensureTouchModeLocally(inTouchMode); 2719 } 2720 2721 /** 2722 * Ensure that the touch mode for this window is set, and if it is changing, 2723 * take the appropriate action. 2724 * @param inTouchMode Whether we want to be in touch mode. 2725 * @return True if the touch mode changed and focus changed was changed as a result 2726 */ 2727 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2728 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2729 + "touch mode is " + mAttachInfo.mInTouchMode); 2730 2731 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2732 2733 mAttachInfo.mInTouchMode = inTouchMode; 2734 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2735 2736 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2737 } 2738 2739 private boolean enterTouchMode() { 2740 if (mView != null) { 2741 if (mView.hasFocus()) { 2742 // note: not relying on mFocusedView here because this could 2743 // be when the window is first being added, and mFocused isn't 2744 // set yet. 2745 final View focused = mView.findFocus(); 2746 if (focused != null && !focused.isFocusableInTouchMode()) { 2747 2748 final ViewGroup ancestorToTakeFocus = 2749 findAncestorToTakeFocusInTouchMode(focused); 2750 if (ancestorToTakeFocus != null) { 2751 // there is an ancestor that wants focus after its descendants that 2752 // is focusable in touch mode.. give it focus 2753 return ancestorToTakeFocus.requestFocus(); 2754 } else { 2755 // nothing appropriate to have focus in touch mode, clear it out 2756 mView.unFocus(); 2757 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2758 mFocusedView = null; 2759 return true; 2760 } 2761 } 2762 } 2763 } 2764 return false; 2765 } 2766 2767 2768 /** 2769 * Find an ancestor of focused that wants focus after its descendants and is 2770 * focusable in touch mode. 2771 * @param focused The currently focused view. 2772 * @return An appropriate view, or null if no such view exists. 2773 */ 2774 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2775 ViewParent parent = focused.getParent(); 2776 while (parent instanceof ViewGroup) { 2777 final ViewGroup vgParent = (ViewGroup) parent; 2778 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2779 && vgParent.isFocusableInTouchMode()) { 2780 return vgParent; 2781 } 2782 if (vgParent.isRootNamespace()) { 2783 return null; 2784 } else { 2785 parent = vgParent.getParent(); 2786 } 2787 } 2788 return null; 2789 } 2790 2791 private boolean leaveTouchMode() { 2792 if (mView != null) { 2793 if (mView.hasFocus()) { 2794 // i learned the hard way to not trust mFocusedView :) 2795 mFocusedView = mView.findFocus(); 2796 if (!(mFocusedView instanceof ViewGroup)) { 2797 // some view has focus, let it keep it 2798 return false; 2799 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2800 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2801 // some view group has focus, and doesn't prefer its children 2802 // over itself for focus, so let them keep it. 2803 return false; 2804 } 2805 } 2806 2807 // find the best view to give focus to in this brave new non-touch-mode 2808 // world 2809 final View focused = focusSearch(null, View.FOCUS_DOWN); 2810 if (focused != null) { 2811 return focused.requestFocus(View.FOCUS_DOWN); 2812 } 2813 } 2814 return false; 2815 } 2816 2817 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2818 if (ViewDebug.DEBUG_LATENCY) { 2819 mInputEventDeliverTimeNanos = System.nanoTime(); 2820 } 2821 2822 final boolean isTouchEvent = event.isTouchEvent(); 2823 if (mInputEventConsistencyVerifier != null) { 2824 if (isTouchEvent) { 2825 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2826 } else { 2827 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2828 } 2829 } 2830 2831 // If there is no view, then the event will not be handled. 2832 if (mView == null || !mAdded) { 2833 finishMotionEvent(event, sendDone, false); 2834 return; 2835 } 2836 2837 // Translate the pointer event for compatibility, if needed. 2838 if (mTranslator != null) { 2839 mTranslator.translateEventInScreenToAppWindow(event); 2840 } 2841 2842 // Enter touch mode on down or scroll. 2843 final int action = event.getAction(); 2844 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2845 ensureTouchMode(true); 2846 } 2847 2848 // Offset the scroll position. 2849 if (mCurScrollY != 0) { 2850 event.offsetLocation(0, mCurScrollY); 2851 } 2852 if (MEASURE_LATENCY) { 2853 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2854 } 2855 2856 // Remember the touch position for possible drag-initiation. 2857 if (isTouchEvent) { 2858 mLastTouchPoint.x = event.getRawX(); 2859 mLastTouchPoint.y = event.getRawY(); 2860 } 2861 2862 // Dispatch touch to view hierarchy. 2863 boolean handled = mView.dispatchPointerEvent(event); 2864 if (MEASURE_LATENCY) { 2865 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2866 } 2867 if (handled) { 2868 finishMotionEvent(event, sendDone, true); 2869 return; 2870 } 2871 2872 // Pointer event was unhandled. 2873 finishMotionEvent(event, sendDone, false); 2874 } 2875 2876 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2877 event.recycle(); 2878 if (sendDone) { 2879 finishInputEvent(event, handled); 2880 } 2881 //noinspection ConstantConditions 2882 if (LOCAL_LOGV || WATCH_POINTER) { 2883 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2884 Log.i(TAG, "Done dispatching!"); 2885 } 2886 } 2887 } 2888 2889 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2890 if (ViewDebug.DEBUG_LATENCY) { 2891 mInputEventDeliverTimeNanos = System.nanoTime(); 2892 } 2893 2894 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2895 2896 if (mInputEventConsistencyVerifier != null) { 2897 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2898 } 2899 2900 // If there is no view, then the event will not be handled. 2901 if (mView == null || !mAdded) { 2902 finishMotionEvent(event, sendDone, false); 2903 return; 2904 } 2905 2906 // Deliver the trackball event to the view. 2907 if (mView.dispatchTrackballEvent(event)) { 2908 // If we reach this, we delivered a trackball event to mView and 2909 // mView consumed it. Because we will not translate the trackball 2910 // event into a key event, touch mode will not exit, so we exit 2911 // touch mode here. 2912 ensureTouchMode(false); 2913 2914 finishMotionEvent(event, sendDone, true); 2915 mLastTrackballTime = Integer.MIN_VALUE; 2916 return; 2917 } 2918 2919 // Translate the trackball event into DPAD keys and try to deliver those. 2920 final TrackballAxis x = mTrackballAxisX; 2921 final TrackballAxis y = mTrackballAxisY; 2922 2923 long curTime = SystemClock.uptimeMillis(); 2924 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2925 // It has been too long since the last movement, 2926 // so restart at the beginning. 2927 x.reset(0); 2928 y.reset(0); 2929 mLastTrackballTime = curTime; 2930 } 2931 2932 final int action = event.getAction(); 2933 final int metaState = event.getMetaState(); 2934 switch (action) { 2935 case MotionEvent.ACTION_DOWN: 2936 x.reset(2); 2937 y.reset(2); 2938 deliverKeyEvent(new KeyEvent(curTime, curTime, 2939 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2940 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2941 InputDevice.SOURCE_KEYBOARD), false); 2942 break; 2943 case MotionEvent.ACTION_UP: 2944 x.reset(2); 2945 y.reset(2); 2946 deliverKeyEvent(new KeyEvent(curTime, curTime, 2947 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2948 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2949 InputDevice.SOURCE_KEYBOARD), false); 2950 break; 2951 } 2952 2953 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2954 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2955 + " move=" + event.getX() 2956 + " / Y=" + y.position + " step=" 2957 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2958 + " move=" + event.getY()); 2959 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2960 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2961 2962 // Generate DPAD events based on the trackball movement. 2963 // We pick the axis that has moved the most as the direction of 2964 // the DPAD. When we generate DPAD events for one axis, then the 2965 // other axis is reset -- we don't want to perform DPAD jumps due 2966 // to slight movements in the trackball when making major movements 2967 // along the other axis. 2968 int keycode = 0; 2969 int movement = 0; 2970 float accel = 1; 2971 if (xOff > yOff) { 2972 movement = x.generate((2/event.getXPrecision())); 2973 if (movement != 0) { 2974 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2975 : KeyEvent.KEYCODE_DPAD_LEFT; 2976 accel = x.acceleration; 2977 y.reset(2); 2978 } 2979 } else if (yOff > 0) { 2980 movement = y.generate((2/event.getYPrecision())); 2981 if (movement != 0) { 2982 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2983 : KeyEvent.KEYCODE_DPAD_UP; 2984 accel = y.acceleration; 2985 x.reset(2); 2986 } 2987 } 2988 2989 if (keycode != 0) { 2990 if (movement < 0) movement = -movement; 2991 int accelMovement = (int)(movement * accel); 2992 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2993 + " accelMovement=" + accelMovement 2994 + " accel=" + accel); 2995 if (accelMovement > movement) { 2996 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2997 + keycode); 2998 movement--; 2999 int repeatCount = accelMovement - movement; 3000 deliverKeyEvent(new KeyEvent(curTime, curTime, 3001 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3002 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3003 InputDevice.SOURCE_KEYBOARD), false); 3004 } 3005 while (movement > 0) { 3006 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3007 + keycode); 3008 movement--; 3009 curTime = SystemClock.uptimeMillis(); 3010 deliverKeyEvent(new KeyEvent(curTime, curTime, 3011 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3012 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3013 InputDevice.SOURCE_KEYBOARD), false); 3014 deliverKeyEvent(new KeyEvent(curTime, curTime, 3015 KeyEvent.ACTION_UP, keycode, 0, metaState, 3016 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3017 InputDevice.SOURCE_KEYBOARD), false); 3018 } 3019 mLastTrackballTime = curTime; 3020 } 3021 3022 // Unfortunately we can't tell whether the application consumed the keys, so 3023 // we always consider the trackball event handled. 3024 finishMotionEvent(event, sendDone, true); 3025 } 3026 3027 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 3028 if (ViewDebug.DEBUG_LATENCY) { 3029 mInputEventDeliverTimeNanos = System.nanoTime(); 3030 } 3031 3032 if (mInputEventConsistencyVerifier != null) { 3033 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3034 } 3035 3036 final int source = event.getSource(); 3037 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3038 3039 // If there is no view, then the event will not be handled. 3040 if (mView == null || !mAdded) { 3041 if (isJoystick) { 3042 updateJoystickDirection(event, false); 3043 } 3044 finishMotionEvent(event, sendDone, false); 3045 return; 3046 } 3047 3048 // Deliver the event to the view. 3049 if (mView.dispatchGenericMotionEvent(event)) { 3050 if (isJoystick) { 3051 updateJoystickDirection(event, false); 3052 } 3053 finishMotionEvent(event, sendDone, true); 3054 return; 3055 } 3056 3057 if (isJoystick) { 3058 // Translate the joystick event into DPAD keys and try to deliver those. 3059 updateJoystickDirection(event, true); 3060 finishMotionEvent(event, sendDone, true); 3061 } else { 3062 finishMotionEvent(event, sendDone, false); 3063 } 3064 } 3065 3066 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3067 final long time = event.getEventTime(); 3068 final int metaState = event.getMetaState(); 3069 final int deviceId = event.getDeviceId(); 3070 final int source = event.getSource(); 3071 3072 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3073 if (xDirection == 0) { 3074 xDirection = joystickAxisValueToDirection(event.getX()); 3075 } 3076 3077 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3078 if (yDirection == 0) { 3079 yDirection = joystickAxisValueToDirection(event.getY()); 3080 } 3081 3082 if (xDirection != mLastJoystickXDirection) { 3083 if (mLastJoystickXKeyCode != 0) { 3084 deliverKeyEvent(new KeyEvent(time, time, 3085 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3086 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3087 mLastJoystickXKeyCode = 0; 3088 } 3089 3090 mLastJoystickXDirection = xDirection; 3091 3092 if (xDirection != 0 && synthesizeNewKeys) { 3093 mLastJoystickXKeyCode = xDirection > 0 3094 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3095 deliverKeyEvent(new KeyEvent(time, time, 3096 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3097 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3098 } 3099 } 3100 3101 if (yDirection != mLastJoystickYDirection) { 3102 if (mLastJoystickYKeyCode != 0) { 3103 deliverKeyEvent(new KeyEvent(time, time, 3104 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3105 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3106 mLastJoystickYKeyCode = 0; 3107 } 3108 3109 mLastJoystickYDirection = yDirection; 3110 3111 if (yDirection != 0 && synthesizeNewKeys) { 3112 mLastJoystickYKeyCode = yDirection > 0 3113 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3114 deliverKeyEvent(new KeyEvent(time, time, 3115 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3116 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3117 } 3118 } 3119 } 3120 3121 private static int joystickAxisValueToDirection(float value) { 3122 if (value >= 0.5f) { 3123 return 1; 3124 } else if (value <= -0.5f) { 3125 return -1; 3126 } else { 3127 return 0; 3128 } 3129 } 3130 3131 /** 3132 * Returns true if the key is used for keyboard navigation. 3133 * @param keyEvent The key event. 3134 * @return True if the key is used for keyboard navigation. 3135 */ 3136 private static boolean isNavigationKey(KeyEvent keyEvent) { 3137 switch (keyEvent.getKeyCode()) { 3138 case KeyEvent.KEYCODE_DPAD_LEFT: 3139 case KeyEvent.KEYCODE_DPAD_RIGHT: 3140 case KeyEvent.KEYCODE_DPAD_UP: 3141 case KeyEvent.KEYCODE_DPAD_DOWN: 3142 case KeyEvent.KEYCODE_DPAD_CENTER: 3143 case KeyEvent.KEYCODE_PAGE_UP: 3144 case KeyEvent.KEYCODE_PAGE_DOWN: 3145 case KeyEvent.KEYCODE_MOVE_HOME: 3146 case KeyEvent.KEYCODE_MOVE_END: 3147 case KeyEvent.KEYCODE_TAB: 3148 case KeyEvent.KEYCODE_SPACE: 3149 case KeyEvent.KEYCODE_ENTER: 3150 return true; 3151 } 3152 return false; 3153 } 3154 3155 /** 3156 * Returns true if the key is used for typing. 3157 * @param keyEvent The key event. 3158 * @return True if the key is used for typing. 3159 */ 3160 private static boolean isTypingKey(KeyEvent keyEvent) { 3161 return keyEvent.getUnicodeChar() > 0; 3162 } 3163 3164 /** 3165 * See if the key event means we should leave touch mode (and leave touch mode if so). 3166 * @param event The key event. 3167 * @return Whether this key event should be consumed (meaning the act of 3168 * leaving touch mode alone is considered the event). 3169 */ 3170 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3171 // Only relevant in touch mode. 3172 if (!mAttachInfo.mInTouchMode) { 3173 return false; 3174 } 3175 3176 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3177 final int action = event.getAction(); 3178 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3179 return false; 3180 } 3181 3182 // Don't leave touch mode if the IME told us not to. 3183 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3184 return false; 3185 } 3186 3187 // If the key can be used for keyboard navigation then leave touch mode 3188 // and select a focused view if needed (in ensureTouchMode). 3189 // When a new focused view is selected, we consume the navigation key because 3190 // navigation doesn't make much sense unless a view already has focus so 3191 // the key's purpose is to set focus. 3192 if (isNavigationKey(event)) { 3193 return ensureTouchMode(false); 3194 } 3195 3196 // If the key can be used for typing then leave touch mode 3197 // and select a focused view if needed (in ensureTouchMode). 3198 // Always allow the view to process the typing key. 3199 if (isTypingKey(event)) { 3200 ensureTouchMode(false); 3201 return false; 3202 } 3203 3204 return false; 3205 } 3206 3207 int enqueuePendingEvent(Object event, boolean sendDone) { 3208 int seq = mPendingEventSeq+1; 3209 if (seq < 0) seq = 0; 3210 mPendingEventSeq = seq; 3211 mPendingEvents.put(seq, event); 3212 return sendDone ? seq : -seq; 3213 } 3214 3215 Object retrievePendingEvent(int seq) { 3216 if (seq < 0) seq = -seq; 3217 Object event = mPendingEvents.get(seq); 3218 if (event != null) { 3219 mPendingEvents.remove(seq); 3220 } 3221 return event; 3222 } 3223 3224 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3225 if (ViewDebug.DEBUG_LATENCY) { 3226 mInputEventDeliverTimeNanos = System.nanoTime(); 3227 } 3228 3229 if (mInputEventConsistencyVerifier != null) { 3230 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3231 } 3232 3233 // If there is no view, then the event will not be handled. 3234 if (mView == null || !mAdded) { 3235 finishKeyEvent(event, sendDone, false); 3236 return; 3237 } 3238 3239 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3240 3241 // Perform predispatching before the IME. 3242 if (mView.dispatchKeyEventPreIme(event)) { 3243 finishKeyEvent(event, sendDone, true); 3244 return; 3245 } 3246 3247 // Dispatch to the IME before propagating down the view hierarchy. 3248 // The IME will eventually call back into handleFinishedEvent. 3249 if (mLastWasImTarget) { 3250 InputMethodManager imm = InputMethodManager.peekInstance(); 3251 if (imm != null) { 3252 int seq = enqueuePendingEvent(event, sendDone); 3253 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3254 + seq + " event=" + event); 3255 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3256 return; 3257 } 3258 } 3259 3260 // Not dispatching to IME, continue with post IME actions. 3261 deliverKeyEventPostIme(event, sendDone); 3262 } 3263 3264 private void handleFinishedEvent(int seq, boolean handled) { 3265 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3266 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3267 + " handled=" + handled + " event=" + event); 3268 if (event != null) { 3269 final boolean sendDone = seq >= 0; 3270 if (handled) { 3271 finishKeyEvent(event, sendDone, true); 3272 } else { 3273 deliverKeyEventPostIme(event, sendDone); 3274 } 3275 } 3276 } 3277 3278 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3279 if (ViewDebug.DEBUG_LATENCY) { 3280 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3281 } 3282 3283 // If the view went away, then the event will not be handled. 3284 if (mView == null || !mAdded) { 3285 finishKeyEvent(event, sendDone, false); 3286 return; 3287 } 3288 3289 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3290 if (checkForLeavingTouchModeAndConsume(event)) { 3291 finishKeyEvent(event, sendDone, true); 3292 return; 3293 } 3294 3295 // Make sure the fallback event policy sees all keys that will be delivered to the 3296 // view hierarchy. 3297 mFallbackEventHandler.preDispatchKeyEvent(event); 3298 3299 // Deliver the key to the view hierarchy. 3300 if (mView.dispatchKeyEvent(event)) { 3301 finishKeyEvent(event, sendDone, true); 3302 return; 3303 } 3304 3305 // If the Control modifier is held, try to interpret the key as a shortcut. 3306 if (event.getAction() == KeyEvent.ACTION_UP 3307 && event.isCtrlPressed() 3308 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3309 if (mView.dispatchKeyShortcutEvent(event)) { 3310 finishKeyEvent(event, sendDone, true); 3311 return; 3312 } 3313 } 3314 3315 // Apply the fallback event policy. 3316 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3317 finishKeyEvent(event, sendDone, true); 3318 return; 3319 } 3320 3321 // Handle automatic focus changes. 3322 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3323 int direction = 0; 3324 switch (event.getKeyCode()) { 3325 case KeyEvent.KEYCODE_DPAD_LEFT: 3326 if (event.hasNoModifiers()) { 3327 direction = View.FOCUS_LEFT; 3328 } 3329 break; 3330 case KeyEvent.KEYCODE_DPAD_RIGHT: 3331 if (event.hasNoModifiers()) { 3332 direction = View.FOCUS_RIGHT; 3333 } 3334 break; 3335 case KeyEvent.KEYCODE_DPAD_UP: 3336 if (event.hasNoModifiers()) { 3337 direction = View.FOCUS_UP; 3338 } 3339 break; 3340 case KeyEvent.KEYCODE_DPAD_DOWN: 3341 if (event.hasNoModifiers()) { 3342 direction = View.FOCUS_DOWN; 3343 } 3344 break; 3345 case KeyEvent.KEYCODE_TAB: 3346 if (event.hasNoModifiers()) { 3347 direction = View.FOCUS_FORWARD; 3348 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3349 direction = View.FOCUS_BACKWARD; 3350 } 3351 break; 3352 } 3353 3354 if (direction != 0) { 3355 View focused = mView != null ? mView.findFocus() : null; 3356 if (focused != null) { 3357 View v = focused.focusSearch(direction); 3358 if (v != null && v != focused) { 3359 // do the math the get the interesting rect 3360 // of previous focused into the coord system of 3361 // newly focused view 3362 focused.getFocusedRect(mTempRect); 3363 if (mView instanceof ViewGroup) { 3364 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3365 focused, mTempRect); 3366 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3367 v, mTempRect); 3368 } 3369 if (v.requestFocus(direction, mTempRect)) { 3370 playSoundEffect( 3371 SoundEffectConstants.getContantForFocusDirection(direction)); 3372 finishKeyEvent(event, sendDone, true); 3373 return; 3374 } 3375 } 3376 3377 // Give the focused view a last chance to handle the dpad key. 3378 if (mView.dispatchUnhandledMove(focused, direction)) { 3379 finishKeyEvent(event, sendDone, true); 3380 return; 3381 } 3382 } 3383 } 3384 } 3385 3386 // Key was unhandled. 3387 finishKeyEvent(event, sendDone, false); 3388 } 3389 3390 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3391 if (sendDone) { 3392 finishInputEvent(event, handled); 3393 } 3394 } 3395 3396 /* drag/drop */ 3397 void setLocalDragState(Object obj) { 3398 mLocalDragState = obj; 3399 } 3400 3401 private void handleDragEvent(DragEvent event) { 3402 // From the root, only drag start/end/location are dispatched. entered/exited 3403 // are determined and dispatched by the viewgroup hierarchy, who then report 3404 // that back here for ultimate reporting back to the framework. 3405 if (mView != null && mAdded) { 3406 final int what = event.mAction; 3407 3408 if (what == DragEvent.ACTION_DRAG_EXITED) { 3409 // A direct EXITED event means that the window manager knows we've just crossed 3410 // a window boundary, so the current drag target within this one must have 3411 // just been exited. Send it the usual notifications and then we're done 3412 // for now. 3413 mView.dispatchDragEvent(event); 3414 } else { 3415 // Cache the drag description when the operation starts, then fill it in 3416 // on subsequent calls as a convenience 3417 if (what == DragEvent.ACTION_DRAG_STARTED) { 3418 mCurrentDragView = null; // Start the current-recipient tracking 3419 mDragDescription = event.mClipDescription; 3420 } else { 3421 event.mClipDescription = mDragDescription; 3422 } 3423 3424 // For events with a [screen] location, translate into window coordinates 3425 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3426 mDragPoint.set(event.mX, event.mY); 3427 if (mTranslator != null) { 3428 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3429 } 3430 3431 if (mCurScrollY != 0) { 3432 mDragPoint.offset(0, mCurScrollY); 3433 } 3434 3435 event.mX = mDragPoint.x; 3436 event.mY = mDragPoint.y; 3437 } 3438 3439 // Remember who the current drag target is pre-dispatch 3440 final View prevDragView = mCurrentDragView; 3441 3442 // Now dispatch the drag/drop event 3443 boolean result = mView.dispatchDragEvent(event); 3444 3445 // If we changed apparent drag target, tell the OS about it 3446 if (prevDragView != mCurrentDragView) { 3447 try { 3448 if (prevDragView != null) { 3449 sWindowSession.dragRecipientExited(mWindow); 3450 } 3451 if (mCurrentDragView != null) { 3452 sWindowSession.dragRecipientEntered(mWindow); 3453 } 3454 } catch (RemoteException e) { 3455 Slog.e(TAG, "Unable to note drag target change"); 3456 } 3457 } 3458 3459 // Report the drop result when we're done 3460 if (what == DragEvent.ACTION_DROP) { 3461 mDragDescription = null; 3462 try { 3463 Log.i(TAG, "Reporting drop result: " + result); 3464 sWindowSession.reportDropResult(mWindow, result); 3465 } catch (RemoteException e) { 3466 Log.e(TAG, "Unable to report drop result"); 3467 } 3468 } 3469 3470 // When the drag operation ends, release any local state object 3471 // that may have been in use 3472 if (what == DragEvent.ACTION_DRAG_ENDED) { 3473 setLocalDragState(null); 3474 } 3475 } 3476 } 3477 event.recycle(); 3478 } 3479 3480 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3481 if (mSeq != args.seq) { 3482 // The sequence has changed, so we need to update our value and make 3483 // sure to do a traversal afterward so the window manager is given our 3484 // most recent data. 3485 mSeq = args.seq; 3486 mAttachInfo.mForceReportNewAttributes = true; 3487 scheduleTraversals(); 3488 } 3489 if (mView == null) return; 3490 if (args.localChanges != 0) { 3491 if (mAttachInfo != null) { 3492 mAttachInfo.mSystemUiVisibility = 3493 (mAttachInfo.mSystemUiVisibility&~args.localChanges) 3494 | (args.localValue&args.localChanges); 3495 } 3496 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3497 mAttachInfo.mRecomputeGlobalAttributes = true; 3498 scheduleTraversals(); 3499 } 3500 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3501 } 3502 3503 public void getLastTouchPoint(Point outLocation) { 3504 outLocation.x = (int) mLastTouchPoint.x; 3505 outLocation.y = (int) mLastTouchPoint.y; 3506 } 3507 3508 public void setDragFocus(View newDragTarget) { 3509 if (mCurrentDragView != newDragTarget) { 3510 mCurrentDragView = newDragTarget; 3511 } 3512 } 3513 3514 private AudioManager getAudioManager() { 3515 if (mView == null) { 3516 throw new IllegalStateException("getAudioManager called when there is no mView"); 3517 } 3518 if (mAudioManager == null) { 3519 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3520 } 3521 return mAudioManager; 3522 } 3523 3524 public AccessibilityInteractionController getAccessibilityInteractionController() { 3525 if (mView == null) { 3526 throw new IllegalStateException("getAccessibilityInteractionController" 3527 + " called when there is no mView"); 3528 } 3529 if (mAccessibilityInteractionContrtoller == null) { 3530 mAccessibilityInteractionContrtoller = new AccessibilityInteractionController(); 3531 } 3532 return mAccessibilityInteractionContrtoller; 3533 } 3534 3535 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3536 boolean insetsPending) throws RemoteException { 3537 3538 float appScale = mAttachInfo.mApplicationScale; 3539 boolean restore = false; 3540 if (params != null && mTranslator != null) { 3541 restore = true; 3542 params.backup(); 3543 mTranslator.translateWindowLayout(params); 3544 } 3545 if (params != null) { 3546 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3547 } 3548 mPendingConfiguration.seq = 0; 3549 //Log.d(TAG, ">>>>>> CALLING relayout"); 3550 if (params != null && mOrigWindowType != params.type) { 3551 // For compatibility with old apps, don't crash here. 3552 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3553 Slog.w(TAG, "Window type can not be changed after " 3554 + "the window is added; ignoring change of " + mView); 3555 params.type = mOrigWindowType; 3556 } 3557 } 3558 int relayoutResult = sWindowSession.relayout( 3559 mWindow, mSeq, params, 3560 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3561 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3562 viewVisibility, insetsPending, mWinFrame, 3563 mPendingContentInsets, mPendingVisibleInsets, 3564 mPendingConfiguration, mSurface); 3565 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3566 if (restore) { 3567 params.restore(); 3568 } 3569 3570 if (mTranslator != null) { 3571 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3572 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3573 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3574 } 3575 return relayoutResult; 3576 } 3577 3578 /** 3579 * {@inheritDoc} 3580 */ 3581 public void playSoundEffect(int effectId) { 3582 checkThread(); 3583 3584 try { 3585 final AudioManager audioManager = getAudioManager(); 3586 3587 switch (effectId) { 3588 case SoundEffectConstants.CLICK: 3589 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3590 return; 3591 case SoundEffectConstants.NAVIGATION_DOWN: 3592 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3593 return; 3594 case SoundEffectConstants.NAVIGATION_LEFT: 3595 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3596 return; 3597 case SoundEffectConstants.NAVIGATION_RIGHT: 3598 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3599 return; 3600 case SoundEffectConstants.NAVIGATION_UP: 3601 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3602 return; 3603 default: 3604 throw new IllegalArgumentException("unknown effect id " + effectId + 3605 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3606 } 3607 } catch (IllegalStateException e) { 3608 // Exception thrown by getAudioManager() when mView is null 3609 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3610 e.printStackTrace(); 3611 } 3612 } 3613 3614 /** 3615 * {@inheritDoc} 3616 */ 3617 public boolean performHapticFeedback(int effectId, boolean always) { 3618 try { 3619 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3620 } catch (RemoteException e) { 3621 return false; 3622 } 3623 } 3624 3625 /** 3626 * {@inheritDoc} 3627 */ 3628 public View focusSearch(View focused, int direction) { 3629 checkThread(); 3630 if (!(mView instanceof ViewGroup)) { 3631 return null; 3632 } 3633 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3634 } 3635 3636 public void debug() { 3637 mView.debug(); 3638 } 3639 3640 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3641 if (mView != null) { 3642 getGfxInfo(mView, info); 3643 } else { 3644 info[0] = info[1] = 0; 3645 } 3646 } 3647 3648 private void getGfxInfo(View view, int[] info) { 3649 DisplayList displayList = view.mDisplayList; 3650 info[0]++; 3651 if (displayList != null) { 3652 info[1] += displayList.getSize(); 3653 } 3654 3655 if (view instanceof ViewGroup) { 3656 ViewGroup group = (ViewGroup) view; 3657 3658 int count = group.getChildCount(); 3659 for (int i = 0; i < count; i++) { 3660 getGfxInfo(group.getChildAt(i), info); 3661 } 3662 } 3663 } 3664 3665 public void die(boolean immediate) { 3666 if (immediate) { 3667 doDie(); 3668 } else { 3669 sendEmptyMessage(DIE); 3670 } 3671 } 3672 3673 void doDie() { 3674 checkThread(); 3675 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3676 synchronized (this) { 3677 if (mAdded) { 3678 mAdded = false; 3679 dispatchDetachedFromWindow(); 3680 } 3681 3682 if (mAdded && !mFirst) { 3683 destroyHardwareRenderer(); 3684 3685 int viewVisibility = mView.getVisibility(); 3686 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3687 if (mWindowAttributesChanged || viewVisibilityChanged) { 3688 // If layout params have been changed, first give them 3689 // to the window manager to make sure it has the correct 3690 // animation info. 3691 try { 3692 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3693 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3694 sWindowSession.finishDrawing(mWindow); 3695 } 3696 } catch (RemoteException e) { 3697 } 3698 } 3699 3700 mSurface.release(); 3701 } 3702 } 3703 } 3704 3705 public void requestUpdateConfiguration(Configuration config) { 3706 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3707 sendMessage(msg); 3708 } 3709 3710 private void destroyHardwareRenderer() { 3711 if (mAttachInfo.mHardwareRenderer != null) { 3712 mAttachInfo.mHardwareRenderer.destroy(true); 3713 mAttachInfo.mHardwareRenderer = null; 3714 mAttachInfo.mHardwareAccelerated = false; 3715 } 3716 } 3717 3718 public void dispatchFinishedEvent(int seq, boolean handled) { 3719 Message msg = obtainMessage(FINISHED_EVENT); 3720 msg.arg1 = seq; 3721 msg.arg2 = handled ? 1 : 0; 3722 sendMessage(msg); 3723 } 3724 3725 public void dispatchResized(int w, int h, Rect coveredInsets, 3726 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3727 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3728 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3729 + " visibleInsets=" + visibleInsets.toShortString() 3730 + " reportDraw=" + reportDraw); 3731 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3732 if (mTranslator != null) { 3733 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3734 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3735 w *= mTranslator.applicationInvertedScale; 3736 h *= mTranslator.applicationInvertedScale; 3737 } 3738 msg.arg1 = w; 3739 msg.arg2 = h; 3740 ResizedInfo ri = new ResizedInfo(); 3741 ri.coveredInsets = new Rect(coveredInsets); 3742 ri.visibleInsets = new Rect(visibleInsets); 3743 ri.newConfig = newConfig; 3744 msg.obj = ri; 3745 sendMessage(msg); 3746 } 3747 3748 private long mInputEventReceiveTimeNanos; 3749 private long mInputEventDeliverTimeNanos; 3750 private long mInputEventDeliverPostImeTimeNanos; 3751 private InputQueue.FinishedCallback mFinishedCallback; 3752 3753 private final InputHandler mInputHandler = new InputHandler() { 3754 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3755 startInputEvent(finishedCallback); 3756 dispatchKey(event, true); 3757 } 3758 3759 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3760 startInputEvent(finishedCallback); 3761 dispatchMotion(event, true); 3762 } 3763 }; 3764 3765 public void dispatchKey(KeyEvent event) { 3766 dispatchKey(event, false); 3767 } 3768 3769 private void dispatchKey(KeyEvent event, boolean sendDone) { 3770 //noinspection ConstantConditions 3771 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3772 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3773 if (DBG) Log.d("keydisp", "==================================================="); 3774 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3775 3776 debug(); 3777 3778 if (DBG) Log.d("keydisp", "==================================================="); 3779 } 3780 } 3781 3782 Message msg = obtainMessage(DISPATCH_KEY); 3783 msg.obj = event; 3784 msg.arg1 = sendDone ? 1 : 0; 3785 3786 if (LOCAL_LOGV) Log.v( 3787 TAG, "sending key " + event + " to " + mView); 3788 3789 sendMessageAtTime(msg, event.getEventTime()); 3790 } 3791 3792 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3793 int source = event.getSource(); 3794 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3795 dispatchPointer(event, sendDone); 3796 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3797 dispatchTrackball(event, sendDone); 3798 } else { 3799 dispatchGenericMotion(event, sendDone); 3800 } 3801 } 3802 3803 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3804 Message msg = obtainMessage(DISPATCH_POINTER); 3805 msg.obj = event; 3806 msg.arg1 = sendDone ? 1 : 0; 3807 sendMessageAtTime(msg, event.getEventTime()); 3808 } 3809 3810 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3811 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3812 msg.obj = event; 3813 msg.arg1 = sendDone ? 1 : 0; 3814 sendMessageAtTime(msg, event.getEventTime()); 3815 } 3816 3817 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3818 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3819 msg.obj = event; 3820 msg.arg1 = sendDone ? 1 : 0; 3821 sendMessageAtTime(msg, event.getEventTime()); 3822 } 3823 3824 public void dispatchAppVisibility(boolean visible) { 3825 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3826 msg.arg1 = visible ? 1 : 0; 3827 sendMessage(msg); 3828 } 3829 3830 public void dispatchGetNewSurface() { 3831 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3832 sendMessage(msg); 3833 } 3834 3835 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3836 Message msg = Message.obtain(); 3837 msg.what = WINDOW_FOCUS_CHANGED; 3838 msg.arg1 = hasFocus ? 1 : 0; 3839 msg.arg2 = inTouchMode ? 1 : 0; 3840 sendMessage(msg); 3841 } 3842 3843 public void dispatchCloseSystemDialogs(String reason) { 3844 Message msg = Message.obtain(); 3845 msg.what = CLOSE_SYSTEM_DIALOGS; 3846 msg.obj = reason; 3847 sendMessage(msg); 3848 } 3849 3850 public void dispatchDragEvent(DragEvent event) { 3851 final int what; 3852 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3853 what = DISPATCH_DRAG_LOCATION_EVENT; 3854 removeMessages(what); 3855 } else { 3856 what = DISPATCH_DRAG_EVENT; 3857 } 3858 Message msg = obtainMessage(what, event); 3859 sendMessage(msg); 3860 } 3861 3862 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3863 int localValue, int localChanges) { 3864 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3865 args.seq = seq; 3866 args.globalVisibility = globalVisibility; 3867 args.localValue = localValue; 3868 args.localChanges = localChanges; 3869 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3870 } 3871 3872 /** 3873 * The window is getting focus so if there is anything focused/selected 3874 * send an {@link AccessibilityEvent} to announce that. 3875 */ 3876 private void sendAccessibilityEvents() { 3877 if (!mAccessibilityManager.isEnabled()) { 3878 return; 3879 } 3880 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3881 View focusedView = mView.findFocus(); 3882 if (focusedView != null && focusedView != mView) { 3883 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3884 } 3885 } 3886 3887 /** 3888 * Post a callback to send a 3889 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3890 * This event is send at most once every 3891 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3892 */ 3893 private void postSendWindowContentChangedCallback() { 3894 if (mSendWindowContentChangedAccessibilityEvent == null) { 3895 mSendWindowContentChangedAccessibilityEvent = 3896 new SendWindowContentChangedAccessibilityEvent(); 3897 } 3898 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3899 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3900 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3901 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3902 } 3903 } 3904 3905 /** 3906 * Remove a posted callback to send a 3907 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3908 */ 3909 private void removeSendWindowContentChangedCallback() { 3910 if (mSendWindowContentChangedAccessibilityEvent != null) { 3911 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3912 } 3913 } 3914 3915 public boolean showContextMenuForChild(View originalView) { 3916 return false; 3917 } 3918 3919 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3920 return null; 3921 } 3922 3923 public void createContextMenu(ContextMenu menu) { 3924 } 3925 3926 public void childDrawableStateChanged(View child) { 3927 } 3928 3929 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3930 if (mView == null) { 3931 return false; 3932 } 3933 mAccessibilityManager.sendAccessibilityEvent(event); 3934 return true; 3935 } 3936 3937 void checkThread() { 3938 if (mThread != Thread.currentThread()) { 3939 throw new CalledFromWrongThreadException( 3940 "Only the original thread that created a view hierarchy can touch its views."); 3941 } 3942 } 3943 3944 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3945 // ViewAncestor never intercepts touch event, so this can be a no-op 3946 } 3947 3948 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3949 boolean immediate) { 3950 return scrollToRectOrFocus(rectangle, immediate); 3951 } 3952 3953 class TakenSurfaceHolder extends BaseSurfaceHolder { 3954 @Override 3955 public boolean onAllowLockCanvas() { 3956 return mDrawingAllowed; 3957 } 3958 3959 @Override 3960 public void onRelayoutContainer() { 3961 // Not currently interesting -- from changing between fixed and layout size. 3962 } 3963 3964 public void setFormat(int format) { 3965 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 3966 } 3967 3968 public void setType(int type) { 3969 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 3970 } 3971 3972 @Override 3973 public void onUpdateSurface() { 3974 // We take care of format and type changes on our own. 3975 throw new IllegalStateException("Shouldn't be here"); 3976 } 3977 3978 public boolean isCreating() { 3979 return mIsCreating; 3980 } 3981 3982 @Override 3983 public void setFixedSize(int width, int height) { 3984 throw new UnsupportedOperationException( 3985 "Currently only support sizing from layout"); 3986 } 3987 3988 public void setKeepScreenOn(boolean screenOn) { 3989 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 3990 } 3991 } 3992 3993 static class InputMethodCallback extends IInputMethodCallback.Stub { 3994 private WeakReference<ViewRootImpl> mViewAncestor; 3995 3996 public InputMethodCallback(ViewRootImpl viewAncestor) { 3997 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 3998 } 3999 4000 public void finishedEvent(int seq, boolean handled) { 4001 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4002 if (viewAncestor != null) { 4003 viewAncestor.dispatchFinishedEvent(seq, handled); 4004 } 4005 } 4006 4007 public void sessionCreated(IInputMethodSession session) { 4008 // Stub -- not for use in the client. 4009 } 4010 } 4011 4012 static class W extends IWindow.Stub { 4013 private final WeakReference<ViewRootImpl> mViewAncestor; 4014 4015 W(ViewRootImpl viewAncestor) { 4016 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4017 } 4018 4019 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4020 boolean reportDraw, Configuration newConfig) { 4021 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4022 if (viewAncestor != null) { 4023 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4024 newConfig); 4025 } 4026 } 4027 4028 public void dispatchAppVisibility(boolean visible) { 4029 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4030 if (viewAncestor != null) { 4031 viewAncestor.dispatchAppVisibility(visible); 4032 } 4033 } 4034 4035 public void dispatchGetNewSurface() { 4036 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4037 if (viewAncestor != null) { 4038 viewAncestor.dispatchGetNewSurface(); 4039 } 4040 } 4041 4042 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4043 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4044 if (viewAncestor != null) { 4045 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4046 } 4047 } 4048 4049 private static int checkCallingPermission(String permission) { 4050 try { 4051 return ActivityManagerNative.getDefault().checkPermission( 4052 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4053 } catch (RemoteException e) { 4054 return PackageManager.PERMISSION_DENIED; 4055 } 4056 } 4057 4058 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4059 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4060 if (viewAncestor != null) { 4061 final View view = viewAncestor.mView; 4062 if (view != null) { 4063 if (checkCallingPermission(Manifest.permission.DUMP) != 4064 PackageManager.PERMISSION_GRANTED) { 4065 throw new SecurityException("Insufficient permissions to invoke" 4066 + " executeCommand() from pid=" + Binder.getCallingPid() 4067 + ", uid=" + Binder.getCallingUid()); 4068 } 4069 4070 OutputStream clientStream = null; 4071 try { 4072 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4073 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4074 } catch (IOException e) { 4075 e.printStackTrace(); 4076 } finally { 4077 if (clientStream != null) { 4078 try { 4079 clientStream.close(); 4080 } catch (IOException e) { 4081 e.printStackTrace(); 4082 } 4083 } 4084 } 4085 } 4086 } 4087 } 4088 4089 public void closeSystemDialogs(String reason) { 4090 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4091 if (viewAncestor != null) { 4092 viewAncestor.dispatchCloseSystemDialogs(reason); 4093 } 4094 } 4095 4096 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4097 boolean sync) { 4098 if (sync) { 4099 try { 4100 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4101 } catch (RemoteException e) { 4102 } 4103 } 4104 } 4105 4106 public void dispatchWallpaperCommand(String action, int x, int y, 4107 int z, Bundle extras, boolean sync) { 4108 if (sync) { 4109 try { 4110 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4111 } catch (RemoteException e) { 4112 } 4113 } 4114 } 4115 4116 /* Drag/drop */ 4117 public void dispatchDragEvent(DragEvent event) { 4118 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4119 if (viewAncestor != null) { 4120 viewAncestor.dispatchDragEvent(event); 4121 } 4122 } 4123 4124 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4125 int localValue, int localChanges) { 4126 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4127 if (viewAncestor != null) { 4128 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4129 localValue, localChanges); 4130 } 4131 } 4132 } 4133 4134 /** 4135 * Maintains state information for a single trackball axis, generating 4136 * discrete (DPAD) movements based on raw trackball motion. 4137 */ 4138 static final class TrackballAxis { 4139 /** 4140 * The maximum amount of acceleration we will apply. 4141 */ 4142 static final float MAX_ACCELERATION = 20; 4143 4144 /** 4145 * The maximum amount of time (in milliseconds) between events in order 4146 * for us to consider the user to be doing fast trackball movements, 4147 * and thus apply an acceleration. 4148 */ 4149 static final long FAST_MOVE_TIME = 150; 4150 4151 /** 4152 * Scaling factor to the time (in milliseconds) between events to how 4153 * much to multiple/divide the current acceleration. When movement 4154 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4155 * FAST_MOVE_TIME it divides it. 4156 */ 4157 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4158 4159 float position; 4160 float absPosition; 4161 float acceleration = 1; 4162 long lastMoveTime = 0; 4163 int step; 4164 int dir; 4165 int nonAccelMovement; 4166 4167 void reset(int _step) { 4168 position = 0; 4169 acceleration = 1; 4170 lastMoveTime = 0; 4171 step = _step; 4172 dir = 0; 4173 } 4174 4175 /** 4176 * Add trackball movement into the state. If the direction of movement 4177 * has been reversed, the state is reset before adding the 4178 * movement (so that you don't have to compensate for any previously 4179 * collected movement before see the result of the movement in the 4180 * new direction). 4181 * 4182 * @return Returns the absolute value of the amount of movement 4183 * collected so far. 4184 */ 4185 float collect(float off, long time, String axis) { 4186 long normTime; 4187 if (off > 0) { 4188 normTime = (long)(off * FAST_MOVE_TIME); 4189 if (dir < 0) { 4190 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4191 position = 0; 4192 step = 0; 4193 acceleration = 1; 4194 lastMoveTime = 0; 4195 } 4196 dir = 1; 4197 } else if (off < 0) { 4198 normTime = (long)((-off) * FAST_MOVE_TIME); 4199 if (dir > 0) { 4200 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4201 position = 0; 4202 step = 0; 4203 acceleration = 1; 4204 lastMoveTime = 0; 4205 } 4206 dir = -1; 4207 } else { 4208 normTime = 0; 4209 } 4210 4211 // The number of milliseconds between each movement that is 4212 // considered "normal" and will not result in any acceleration 4213 // or deceleration, scaled by the offset we have here. 4214 if (normTime > 0) { 4215 long delta = time - lastMoveTime; 4216 lastMoveTime = time; 4217 float acc = acceleration; 4218 if (delta < normTime) { 4219 // The user is scrolling rapidly, so increase acceleration. 4220 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4221 if (scale > 1) acc *= scale; 4222 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4223 + off + " normTime=" + normTime + " delta=" + delta 4224 + " scale=" + scale + " acc=" + acc); 4225 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4226 } else { 4227 // The user is scrolling slowly, so decrease acceleration. 4228 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4229 if (scale > 1) acc /= scale; 4230 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4231 + off + " normTime=" + normTime + " delta=" + delta 4232 + " scale=" + scale + " acc=" + acc); 4233 acceleration = acc > 1 ? acc : 1; 4234 } 4235 } 4236 position += off; 4237 return (absPosition = Math.abs(position)); 4238 } 4239 4240 /** 4241 * Generate the number of discrete movement events appropriate for 4242 * the currently collected trackball movement. 4243 * 4244 * @param precision The minimum movement required to generate the 4245 * first discrete movement. 4246 * 4247 * @return Returns the number of discrete movements, either positive 4248 * or negative, or 0 if there is not enough trackball movement yet 4249 * for a discrete movement. 4250 */ 4251 int generate(float precision) { 4252 int movement = 0; 4253 nonAccelMovement = 0; 4254 do { 4255 final int dir = position >= 0 ? 1 : -1; 4256 switch (step) { 4257 // If we are going to execute the first step, then we want 4258 // to do this as soon as possible instead of waiting for 4259 // a full movement, in order to make things look responsive. 4260 case 0: 4261 if (absPosition < precision) { 4262 return movement; 4263 } 4264 movement += dir; 4265 nonAccelMovement += dir; 4266 step = 1; 4267 break; 4268 // If we have generated the first movement, then we need 4269 // to wait for the second complete trackball motion before 4270 // generating the second discrete movement. 4271 case 1: 4272 if (absPosition < 2) { 4273 return movement; 4274 } 4275 movement += dir; 4276 nonAccelMovement += dir; 4277 position += dir > 0 ? -2 : 2; 4278 absPosition = Math.abs(position); 4279 step = 2; 4280 break; 4281 // After the first two, we generate discrete movements 4282 // consistently with the trackball, applying an acceleration 4283 // if the trackball is moving quickly. This is a simple 4284 // acceleration on top of what we already compute based 4285 // on how quickly the wheel is being turned, to apply 4286 // a longer increasing acceleration to continuous movement 4287 // in one direction. 4288 default: 4289 if (absPosition < 1) { 4290 return movement; 4291 } 4292 movement += dir; 4293 position += dir >= 0 ? -1 : 1; 4294 absPosition = Math.abs(position); 4295 float acc = acceleration; 4296 acc *= 1.1f; 4297 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4298 break; 4299 } 4300 } while (true); 4301 } 4302 } 4303 4304 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4305 public CalledFromWrongThreadException(String msg) { 4306 super(msg); 4307 } 4308 } 4309 4310 private SurfaceHolder mHolder = new SurfaceHolder() { 4311 // we only need a SurfaceHolder for opengl. it would be nice 4312 // to implement everything else though, especially the callback 4313 // support (opengl doesn't make use of it right now, but eventually 4314 // will). 4315 public Surface getSurface() { 4316 return mSurface; 4317 } 4318 4319 public boolean isCreating() { 4320 return false; 4321 } 4322 4323 public void addCallback(Callback callback) { 4324 } 4325 4326 public void removeCallback(Callback callback) { 4327 } 4328 4329 public void setFixedSize(int width, int height) { 4330 } 4331 4332 public void setSizeFromLayout() { 4333 } 4334 4335 public void setFormat(int format) { 4336 } 4337 4338 public void setType(int type) { 4339 } 4340 4341 public void setKeepScreenOn(boolean screenOn) { 4342 } 4343 4344 public Canvas lockCanvas() { 4345 return null; 4346 } 4347 4348 public Canvas lockCanvas(Rect dirty) { 4349 return null; 4350 } 4351 4352 public void unlockCanvasAndPost(Canvas canvas) { 4353 } 4354 public Rect getSurfaceFrame() { 4355 return null; 4356 } 4357 }; 4358 4359 static RunQueue getRunQueue() { 4360 RunQueue rq = sRunQueues.get(); 4361 if (rq != null) { 4362 return rq; 4363 } 4364 rq = new RunQueue(); 4365 sRunQueues.set(rq); 4366 return rq; 4367 } 4368 4369 /** 4370 * @hide 4371 */ 4372 static final class RunQueue { 4373 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4374 4375 void post(Runnable action) { 4376 postDelayed(action, 0); 4377 } 4378 4379 void postDelayed(Runnable action, long delayMillis) { 4380 HandlerAction handlerAction = new HandlerAction(); 4381 handlerAction.action = action; 4382 handlerAction.delay = delayMillis; 4383 4384 synchronized (mActions) { 4385 mActions.add(handlerAction); 4386 } 4387 } 4388 4389 void removeCallbacks(Runnable action) { 4390 final HandlerAction handlerAction = new HandlerAction(); 4391 handlerAction.action = action; 4392 4393 synchronized (mActions) { 4394 final ArrayList<HandlerAction> actions = mActions; 4395 4396 while (actions.remove(handlerAction)) { 4397 // Keep going 4398 } 4399 } 4400 } 4401 4402 void executeActions(Handler handler) { 4403 synchronized (mActions) { 4404 final ArrayList<HandlerAction> actions = mActions; 4405 final int count = actions.size(); 4406 4407 for (int i = 0; i < count; i++) { 4408 final HandlerAction handlerAction = actions.get(i); 4409 handler.postDelayed(handlerAction.action, handlerAction.delay); 4410 } 4411 4412 actions.clear(); 4413 } 4414 } 4415 4416 private static class HandlerAction { 4417 Runnable action; 4418 long delay; 4419 4420 @Override 4421 public boolean equals(Object o) { 4422 if (this == o) return true; 4423 if (o == null || getClass() != o.getClass()) return false; 4424 4425 HandlerAction that = (HandlerAction) o; 4426 return !(action != null ? !action.equals(that.action) : that.action != null); 4427 4428 } 4429 4430 @Override 4431 public int hashCode() { 4432 int result = action != null ? action.hashCode() : 0; 4433 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4434 return result; 4435 } 4436 } 4437 } 4438 4439 /** 4440 * Class for managing the accessibility interaction connection 4441 * based on the global accessibility state. 4442 */ 4443 final class AccessibilityInteractionConnectionManager 4444 implements AccessibilityStateChangeListener { 4445 public void onAccessibilityStateChanged(boolean enabled) { 4446 if (enabled) { 4447 ensureConnection(); 4448 } else { 4449 ensureNoConnection(); 4450 } 4451 } 4452 4453 public void ensureConnection() { 4454 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4455 if (!registered) { 4456 mAttachInfo.mAccessibilityWindowId = 4457 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4458 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4459 } 4460 } 4461 4462 public void ensureNoConnection() { 4463 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4464 if (registered) { 4465 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4466 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4467 } 4468 } 4469 } 4470 4471 /** 4472 * This class is an interface this ViewAncestor provides to the 4473 * AccessibilityManagerService to the latter can interact with 4474 * the view hierarchy in this ViewAncestor. 4475 */ 4476 final class AccessibilityInteractionConnection 4477 extends IAccessibilityInteractionConnection.Stub { 4478 private final WeakReference<ViewRootImpl> mViewAncestor; 4479 4480 AccessibilityInteractionConnection(ViewRootImpl viewAncestor) { 4481 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4482 } 4483 4484 public void findAccessibilityNodeInfoByAccessibilityId(int accessibilityId, 4485 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4486 int interrogatingPid, long interrogatingTid) { 4487 if (mViewAncestor.get() != null) { 4488 getAccessibilityInteractionController() 4489 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityId, 4490 interactionId, callback, interrogatingPid, interrogatingTid); 4491 } 4492 } 4493 4494 public void performAccessibilityAction(int accessibilityId, int action, 4495 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4496 int interogatingPid, long interrogatingTid) { 4497 if (mViewAncestor.get() != null) { 4498 getAccessibilityInteractionController() 4499 .performAccessibilityActionClientThread(accessibilityId, action, interactionId, 4500 callback, interogatingPid, interrogatingTid); 4501 } 4502 } 4503 4504 public void findAccessibilityNodeInfoByViewId(int viewId, 4505 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4506 int interrogatingPid, long interrogatingTid) { 4507 if (mViewAncestor.get() != null) { 4508 getAccessibilityInteractionController() 4509 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4510 interrogatingPid, interrogatingTid); 4511 } 4512 } 4513 4514 public void findAccessibilityNodeInfosByViewText(String text, int accessibilityId, 4515 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4516 int interrogatingPid, long interrogatingTid) { 4517 if (mViewAncestor.get() != null) { 4518 getAccessibilityInteractionController() 4519 .findAccessibilityNodeInfosByViewTextClientThread(text, accessibilityId, 4520 interactionId, callback, interrogatingPid, interrogatingTid); 4521 } 4522 } 4523 } 4524 4525 /** 4526 * Class for managing accessibility interactions initiated from the system 4527 * and targeting the view hierarchy. A *ClientThread method is to be 4528 * called from the interaction connection this ViewAncestor gives the 4529 * system to talk to it and a corresponding *UiThread method that is executed 4530 * on the UI thread. 4531 */ 4532 final class AccessibilityInteractionController { 4533 private static final int POOL_SIZE = 5; 4534 4535 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4536 new ArrayList<AccessibilityNodeInfo>(); 4537 4538 // Reusable poolable arguments for interacting with the view hierarchy 4539 // to fit more arguments than Message and to avoid sharing objects between 4540 // two messages since several threads can send messages concurrently. 4541 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4542 new PoolableManager<SomeArgs>() { 4543 public SomeArgs newInstance() { 4544 return new SomeArgs(); 4545 } 4546 4547 public void onAcquired(SomeArgs info) { 4548 /* do nothing */ 4549 } 4550 4551 public void onReleased(SomeArgs info) { 4552 info.clear(); 4553 } 4554 }, POOL_SIZE) 4555 ); 4556 4557 public class SomeArgs implements Poolable<SomeArgs> { 4558 private SomeArgs mNext; 4559 private boolean mIsPooled; 4560 4561 public Object arg1; 4562 public Object arg2; 4563 public int argi1; 4564 public int argi2; 4565 public int argi3; 4566 4567 public SomeArgs getNextPoolable() { 4568 return mNext; 4569 } 4570 4571 public boolean isPooled() { 4572 return mIsPooled; 4573 } 4574 4575 public void setNextPoolable(SomeArgs args) { 4576 mNext = args; 4577 } 4578 4579 public void setPooled(boolean isPooled) { 4580 mIsPooled = isPooled; 4581 } 4582 4583 private void clear() { 4584 arg1 = null; 4585 arg2 = null; 4586 argi1 = 0; 4587 argi2 = 0; 4588 argi3 = 0; 4589 } 4590 } 4591 4592 public void findAccessibilityNodeInfoByAccessibilityIdClientThread(int accessibilityId, 4593 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4594 int interrogatingPid, long interrogatingTid) { 4595 Message message = Message.obtain(); 4596 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4597 message.arg1 = accessibilityId; 4598 message.arg2 = interactionId; 4599 message.obj = callback; 4600 // If the interrogation is performed by the same thread as the main UI 4601 // thread in this process, set the message as a static reference so 4602 // after this call completes the same thread but in the interrogating 4603 // client can handle the message to generate the result. 4604 if (interrogatingPid == Process.myPid() 4605 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4606 message.setTarget(ViewRootImpl.this); 4607 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4608 } else { 4609 sendMessage(message); 4610 } 4611 } 4612 4613 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4614 final int accessibilityId = message.arg1; 4615 final int interactionId = message.arg2; 4616 final IAccessibilityInteractionConnectionCallback callback = 4617 (IAccessibilityInteractionConnectionCallback) message.obj; 4618 4619 AccessibilityNodeInfo info = null; 4620 try { 4621 View target = findViewByAccessibilityId(accessibilityId); 4622 if (target != null) { 4623 info = target.createAccessibilityNodeInfo(); 4624 } 4625 } finally { 4626 try { 4627 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4628 } catch (RemoteException re) { 4629 /* ignore - the other side will time out */ 4630 } 4631 } 4632 } 4633 4634 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4635 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4636 long interrogatingTid) { 4637 Message message = Message.obtain(); 4638 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4639 message.arg1 = viewId; 4640 message.arg2 = interactionId; 4641 message.obj = callback; 4642 // If the interrogation is performed by the same thread as the main UI 4643 // thread in this process, set the message as a static reference so 4644 // after this call completes the same thread but in the interrogating 4645 // client can handle the message to generate the result. 4646 if (interrogatingPid == Process.myPid() 4647 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4648 message.setTarget(ViewRootImpl.this); 4649 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4650 } else { 4651 sendMessage(message); 4652 } 4653 } 4654 4655 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4656 final int viewId = message.arg1; 4657 final int interactionId = message.arg2; 4658 final IAccessibilityInteractionConnectionCallback callback = 4659 (IAccessibilityInteractionConnectionCallback) message.obj; 4660 4661 AccessibilityNodeInfo info = null; 4662 try { 4663 View root = ViewRootImpl.this.mView; 4664 View target = root.findViewById(viewId); 4665 if (target != null && target.getVisibility() == View.VISIBLE) { 4666 info = target.createAccessibilityNodeInfo(); 4667 } 4668 } finally { 4669 try { 4670 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4671 } catch (RemoteException re) { 4672 /* ignore - the other side will time out */ 4673 } 4674 } 4675 } 4676 4677 public void findAccessibilityNodeInfosByViewTextClientThread(String text, 4678 int accessibilityViewId, int interactionId, 4679 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4680 long interrogatingTid) { 4681 Message message = Message.obtain(); 4682 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_TEXT; 4683 SomeArgs args = mPool.acquire(); 4684 args.arg1 = text; 4685 args.argi1 = accessibilityViewId; 4686 args.argi2 = interactionId; 4687 args.arg2 = callback; 4688 message.obj = args; 4689 // If the interrogation is performed by the same thread as the main UI 4690 // thread in this process, set the message as a static reference so 4691 // after this call completes the same thread but in the interrogating 4692 // client can handle the message to generate the result. 4693 if (interrogatingPid == Process.myPid() 4694 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4695 message.setTarget(ViewRootImpl.this); 4696 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4697 } else { 4698 sendMessage(message); 4699 } 4700 } 4701 4702 public void findAccessibilityNodeInfosByViewTextUiThread(Message message) { 4703 SomeArgs args = (SomeArgs) message.obj; 4704 final String text = (String) args.arg1; 4705 final int accessibilityViewId = args.argi1; 4706 final int interactionId = args.argi2; 4707 final IAccessibilityInteractionConnectionCallback callback = 4708 (IAccessibilityInteractionConnectionCallback) args.arg2; 4709 mPool.release(args); 4710 4711 List<AccessibilityNodeInfo> infos = null; 4712 try { 4713 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4714 foundViews.clear(); 4715 4716 View root = null; 4717 if (accessibilityViewId != View.NO_ID) { 4718 root = findViewByAccessibilityId(accessibilityViewId); 4719 } else { 4720 root = ViewRootImpl.this.mView; 4721 } 4722 4723 if (root == null || root.getVisibility() != View.VISIBLE) { 4724 return; 4725 } 4726 4727 root.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4728 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION); 4729 if (foundViews.isEmpty()) { 4730 return; 4731 } 4732 4733 infos = mTempAccessibilityNodeInfoList; 4734 infos.clear(); 4735 4736 final int viewCount = foundViews.size(); 4737 for (int i = 0; i < viewCount; i++) { 4738 View foundView = foundViews.get(i); 4739 if (foundView.getVisibility() == View.VISIBLE) { 4740 infos.add(foundView.createAccessibilityNodeInfo()); 4741 } 4742 } 4743 } finally { 4744 try { 4745 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4746 } catch (RemoteException re) { 4747 /* ignore - the other side will time out */ 4748 } 4749 } 4750 } 4751 4752 public void performAccessibilityActionClientThread(int accessibilityId, int action, 4753 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4754 int interogatingPid, long interrogatingTid) { 4755 Message message = Message.obtain(); 4756 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4757 SomeArgs args = mPool.acquire(); 4758 args.argi1 = accessibilityId; 4759 args.argi2 = action; 4760 args.argi3 = interactionId; 4761 args.arg1 = callback; 4762 message.obj = args; 4763 // If the interrogation is performed by the same thread as the main UI 4764 // thread in this process, set the message as a static reference so 4765 // after this call completes the same thread but in the interrogating 4766 // client can handle the message to generate the result. 4767 if (interogatingPid == Process.myPid() 4768 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4769 message.setTarget(ViewRootImpl.this); 4770 AccessibilityInteractionClient.getInstance().setSameThreadMessage(message); 4771 } else { 4772 sendMessage(message); 4773 } 4774 } 4775 4776 public void perfromAccessibilityActionUiThread(Message message) { 4777 SomeArgs args = (SomeArgs) message.obj; 4778 final int accessibilityId = args.argi1; 4779 final int action = args.argi2; 4780 final int interactionId = args.argi3; 4781 final IAccessibilityInteractionConnectionCallback callback = 4782 (IAccessibilityInteractionConnectionCallback) args.arg1; 4783 mPool.release(args); 4784 4785 boolean succeeded = false; 4786 try { 4787 switch (action) { 4788 case AccessibilityNodeInfo.ACTION_FOCUS: { 4789 succeeded = performActionFocus(accessibilityId); 4790 } break; 4791 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4792 succeeded = performActionClearFocus(accessibilityId); 4793 } break; 4794 case AccessibilityNodeInfo.ACTION_SELECT: { 4795 succeeded = performActionSelect(accessibilityId); 4796 } break; 4797 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4798 succeeded = performActionClearSelection(accessibilityId); 4799 } break; 4800 } 4801 } finally { 4802 try { 4803 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4804 } catch (RemoteException re) { 4805 /* ignore - the other side will time out */ 4806 } 4807 } 4808 } 4809 4810 private boolean performActionFocus(int accessibilityId) { 4811 View target = findViewByAccessibilityId(accessibilityId); 4812 if (target == null || target.getVisibility() != View.VISIBLE) { 4813 return false; 4814 } 4815 // Get out of touch mode since accessibility wants to move focus around. 4816 ensureTouchMode(false); 4817 return target.requestFocus(); 4818 } 4819 4820 private boolean performActionClearFocus(int accessibilityId) { 4821 View target = findViewByAccessibilityId(accessibilityId); 4822 if (target == null || target.getVisibility() != View.VISIBLE) { 4823 return false; 4824 } 4825 if (!target.isFocused()) { 4826 return false; 4827 } 4828 target.clearFocus(); 4829 return !target.isFocused(); 4830 } 4831 4832 private boolean performActionSelect(int accessibilityId) { 4833 View target = findViewByAccessibilityId(accessibilityId); 4834 if (target == null || target.getVisibility() != View.VISIBLE) { 4835 return false; 4836 } 4837 if (target.isSelected()) { 4838 return false; 4839 } 4840 target.setSelected(true); 4841 return target.isSelected(); 4842 } 4843 4844 private boolean performActionClearSelection(int accessibilityId) { 4845 View target = findViewByAccessibilityId(accessibilityId); 4846 if (target == null || target.getVisibility() != View.VISIBLE) { 4847 return false; 4848 } 4849 if (!target.isSelected()) { 4850 return false; 4851 } 4852 target.setSelected(false); 4853 return !target.isSelected(); 4854 } 4855 4856 private View findViewByAccessibilityId(int accessibilityId) { 4857 View root = ViewRootImpl.this.mView; 4858 if (root == null) { 4859 return null; 4860 } 4861 View foundView = root.findViewByAccessibilityId(accessibilityId); 4862 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4863 return null; 4864 } 4865 return foundView; 4866 } 4867 } 4868 4869 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4870 public volatile boolean mIsPending; 4871 4872 public void run() { 4873 if (mView != null) { 4874 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4875 mIsPending = false; 4876 } 4877 } 4878 } 4879 } 4880
