Merge "Dispatch key events to multiple a11y services."
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 9f1dc0a..3d358ec 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -64,21 +64,17 @@
import android.provider.Settings;
import android.text.TextUtils;
import android.text.TextUtils.SimpleStringSplitter;
-import android.util.Pools.Pool;
-import android.util.Pools.SimplePool;
import android.util.Slog;
import android.util.SparseArray;
import android.view.Display;
import android.view.IWindow;
import android.view.InputDevice;
-import android.view.InputEventConsistencyVerifier;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.MagnificationSpec;
import android.view.WindowInfo;
import android.view.WindowManager;
import android.view.WindowManagerInternal;
-import android.view.WindowManagerPolicy;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityInteractionClient;
import android.view.accessibility.AccessibilityManager;
@@ -146,8 +142,6 @@
private static final int OWN_PROCESS_ID = android.os.Process.myPid();
- private static final int MAX_POOL_SIZE = 10;
-
private static final int WINDOW_ID_UNKNOWN = -1;
private static int sIdCounter = 0;
@@ -158,9 +152,6 @@
private final Object mLock = new Object();
- private final Pool<PendingEvent> mPendingEventPool =
- new SimplePool<>(MAX_POOL_SIZE);
-
private final SimpleStringSplitter mStringColonSplitter =
new SimpleStringSplitter(COMPONENT_NAME_SEPARATOR);
@@ -193,6 +184,8 @@
private boolean mHasInputFilter;
+ private KeyEventDispatcher mKeyEventDispatcher;
+
private final Set<ComponentName> mTempComponentNameSet = new HashSet<>();
private final List<AccessibilityServiceInfo> mTempAccessibilityServiceInfoList =
@@ -756,12 +749,11 @@
boolean notifyKeyEvent(KeyEvent event, int policyFlags) {
synchronized (mLock) {
- KeyEvent localClone = KeyEvent.obtain(event);
- boolean handled = notifyKeyEventLocked(localClone, policyFlags, false);
- if (!handled) {
- handled = notifyKeyEventLocked(localClone, policyFlags, true);
+ List<Service> boundServices = getCurrentUserStateLocked().mBoundServices;
+ if (boundServices.isEmpty()) {
+ return false;
}
- return handled;
+ return getKeyEventDispatcher().notifyKeyEventLocked(event, policyFlags, boundServices);
}
}
@@ -935,31 +927,6 @@
return false;
}
- private boolean notifyKeyEventLocked(KeyEvent event, int policyFlags, boolean isDefault) {
- // TODO: Now we are giving the key events to the last enabled
- // service that can handle them Ideally, the user should
- // make the call which service handles key events. However,
- // only one service should handle key events to avoid user
- // frustration when different behavior is observed from
- // different combinations of enabled accessibility services.
- UserState state = getCurrentUserStateLocked();
- for (int i = state.mBoundServices.size() - 1; i >= 0; i--) {
- Service service = state.mBoundServices.get(i);
- // Key events are handled only by services that declared
- // this capability and requested to filter key events.
- if (!service.mRequestFilterKeyEvents ||
- (service.mAccessibilityServiceInfo.getCapabilities() & AccessibilityServiceInfo
- .CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS) == 0) {
- continue;
- }
- if (service.mIsDefault == isDefault) {
- service.notifyKeyEvent(event, policyFlags);
- return true;
- }
- }
- return false;
- }
-
private void notifyClearAccessibilityCacheLocked() {
UserState state = getCurrentUserStateLocked();
for (int i = state.mBoundServices.size() - 1; i >= 0; i--) {
@@ -1754,6 +1721,14 @@
return null;
}
+ private KeyEventDispatcher getKeyEventDispatcher() {
+ if (mKeyEventDispatcher == null) {
+ mKeyEventDispatcher = new KeyEventDispatcher(
+ mMainHandler, MainHandler.MSG_SEND_KEY_EVENT_TO_INPUT_FILTER, mLock);
+ }
+ return mKeyEventDispatcher;
+ }
+
@Override
public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) {
mSecurityPolicy.enforceCallingPermission(Manifest.permission.DUMP, FUNCTION_DUMP);
@@ -1954,22 +1929,6 @@
}
}
- private PendingEvent obtainPendingEventLocked(KeyEvent event, int policyFlags, int sequence) {
- PendingEvent pendingEvent = mPendingEventPool.acquire();
- if (pendingEvent == null) {
- pendingEvent = new PendingEvent();
- }
- pendingEvent.event = event;
- pendingEvent.policyFlags = policyFlags;
- pendingEvent.sequence = sequence;
- return pendingEvent;
- }
-
- private void recyclePendingEventLocked(PendingEvent pendingEvent) {
- pendingEvent.clear();
- mPendingEventPool.release(pendingEvent);
- }
-
private int findWindowIdLocked(IBinder token) {
final int globalIndex = mGlobalWindowTokens.indexOfValue(token);
if (globalIndex >= 0) {
@@ -2082,8 +2041,6 @@
final SparseArray<AccessibilityEvent> mPendingEvents =
new SparseArray<>();
- final KeyEventDispatcher mKeyEventDispatcher = new KeyEventDispatcher();
-
boolean mWasConnectedAndDied;
// Handler only for dispatching accessibility events since we use event
@@ -2195,7 +2152,7 @@
return false;
}
UserState userState = getUserStateLocked(mUserId);
- mKeyEventDispatcher.flush();
+ getKeyEventDispatcher().flush(this);
if (!mIsAutomation) {
mContext.unbindService(this);
} else {
@@ -2212,7 +2169,7 @@
@Override
public void setOnKeyEventResult(boolean handled, int sequence) {
- mKeyEventDispatcher.setOnKeyEventResult(handled, sequence);
+ getKeyEventDispatcher().setOnKeyEventResult(this, handled, sequence);
}
@Override
@@ -2926,7 +2883,7 @@
return;
}
mWasConnectedAndDied = true;
- mKeyEventDispatcher.flush();
+ getKeyEventDispatcher().flush(this);
UserState userState = getUserStateLocked(mUserId);
// The death recipient is unregistered in removeServiceLocked
removeServiceLocked(this, userState);
@@ -3035,11 +2992,6 @@
gestureId, 0).sendToTarget();
}
- public void notifyKeyEvent(KeyEvent event, int policyFlags) {
- mInvocationHandler.obtainMessage(InvocationHandler.MSG_ON_KEY_EVENT,
- policyFlags, 0, event).sendToTarget();
- }
-
public void notifyClearAccessibilityNodeInfoCache() {
mInvocationHandler.sendEmptyMessage(
InvocationHandler.MSG_CLEAR_ACCESSIBILITY_CACHE);
@@ -3084,10 +3036,6 @@
}
}
- private void notifyKeyEventInternal(KeyEvent event, int policyFlags) {
- mKeyEventDispatcher.notifyKeyEvent(event, policyFlags);
- }
-
private void notifyClearAccessibilityCacheInternal() {
final IAccessibilityServiceClient listener;
synchronized (mLock) {
@@ -3205,9 +3153,7 @@
private final class InvocationHandler extends Handler {
public static final int MSG_ON_GESTURE = 1;
- public static final int MSG_ON_KEY_EVENT = 2;
- public static final int MSG_CLEAR_ACCESSIBILITY_CACHE = 3;
- public static final int MSG_ON_KEY_EVENT_TIMEOUT = 4;
+ public static final int MSG_CLEAR_ACCESSIBILITY_CACHE = 2;
private static final int MSG_ON_MAGNIFICATION_CHANGED = 5;
@@ -3226,21 +3172,10 @@
notifyGestureInternal(gestureId);
} break;
- case MSG_ON_KEY_EVENT: {
- KeyEvent event = (KeyEvent) message.obj;
- final int policyFlags = message.arg1;
- notifyKeyEventInternal(event, policyFlags);
- } break;
-
case MSG_CLEAR_ACCESSIBILITY_CACHE: {
notifyClearAccessibilityCacheInternal();
} break;
- case MSG_ON_KEY_EVENT_TIMEOUT: {
- PendingEvent eventState = (PendingEvent) message.obj;
- setOnKeyEventResult(false, eventState.sequence);
- } break;
-
case MSG_ON_MAGNIFICATION_CHANGED: {
final SomeArgs args = (SomeArgs) message.obj;
final Region region = (Region) args.arg1;
@@ -3278,140 +3213,6 @@
}
}
- private final class KeyEventDispatcher {
-
- private static final long ON_KEY_EVENT_TIMEOUT_MILLIS = 500;
-
- private PendingEvent mPendingEvents;
-
- private final InputEventConsistencyVerifier mSentEventsVerifier =
- InputEventConsistencyVerifier.isInstrumentationEnabled()
- ? new InputEventConsistencyVerifier(
- this, 0, KeyEventDispatcher.class.getSimpleName()) : null;
-
- public void notifyKeyEvent(KeyEvent event, int policyFlags) {
- final PendingEvent pendingEvent;
-
- synchronized (mLock) {
- pendingEvent = addPendingEventLocked(event, policyFlags);
- }
-
- Message message = mInvocationHandler.obtainMessage(
- InvocationHandler.MSG_ON_KEY_EVENT_TIMEOUT, pendingEvent);
- mInvocationHandler.sendMessageDelayed(message, ON_KEY_EVENT_TIMEOUT_MILLIS);
-
- try {
- // Accessibility services are exclusively not in the system
- // process, therefore no need to clone the motion event to
- // prevent tampering. It will be cloned in the IPC call.
- mServiceInterface.onKeyEvent(pendingEvent.event, pendingEvent.sequence);
- } catch (RemoteException re) {
- setOnKeyEventResult(false, pendingEvent.sequence);
- }
- }
-
- public void setOnKeyEventResult(boolean handled, int sequence) {
- synchronized (mLock) {
- PendingEvent pendingEvent = removePendingEventLocked(sequence);
- if (pendingEvent != null) {
- mInvocationHandler.removeMessages(
- InvocationHandler.MSG_ON_KEY_EVENT_TIMEOUT,
- pendingEvent);
- pendingEvent.handled = handled;
- finishPendingEventLocked(pendingEvent);
- }
- }
- }
-
- public void flush() {
- synchronized (mLock) {
- cancelAllPendingEventsLocked();
- if (mSentEventsVerifier != null) {
- mSentEventsVerifier.reset();
- }
- }
- }
-
- private PendingEvent addPendingEventLocked(KeyEvent event, int policyFlags) {
- final int sequence = event.getSequenceNumber();
- PendingEvent pendingEvent = obtainPendingEventLocked(event, policyFlags, sequence);
- pendingEvent.next = mPendingEvents;
- mPendingEvents = pendingEvent;
- return pendingEvent;
- }
-
- private PendingEvent removePendingEventLocked(int sequence) {
- PendingEvent previous = null;
- PendingEvent current = mPendingEvents;
-
- while (current != null) {
- if (current.sequence == sequence) {
- if (previous != null) {
- previous.next = current.next;
- } else {
- mPendingEvents = current.next;
- }
- current.next = null;
- return current;
- }
- previous = current;
- current = current.next;
- }
- return null;
- }
-
- private void finishPendingEventLocked(PendingEvent pendingEvent) {
- if (!pendingEvent.handled) {
- sendKeyEventToInputFilter(pendingEvent.event, pendingEvent.policyFlags);
- }
- // Nullify the event since we do not want it to be
- // recycled yet. It will be sent to the input filter.
- pendingEvent.event = null;
- recyclePendingEventLocked(pendingEvent);
- }
-
- private void sendKeyEventToInputFilter(KeyEvent event, int policyFlags) {
- if (DEBUG) {
- Slog.i(LOG_TAG, "Injecting event: " + event);
- }
- if (mSentEventsVerifier != null) {
- mSentEventsVerifier.onKeyEvent(event, 0);
- }
- policyFlags |= WindowManagerPolicy.FLAG_PASS_TO_USER;
- mMainHandler.obtainMessage(MainHandler.MSG_SEND_KEY_EVENT_TO_INPUT_FILTER,
- policyFlags, 0, event).sendToTarget();
- }
-
- private void cancelAllPendingEventsLocked() {
- while (mPendingEvents != null) {
- PendingEvent pendingEvent = removePendingEventLocked(mPendingEvents.sequence);
- pendingEvent.handled = false;
- mInvocationHandler.removeMessages(InvocationHandler.MSG_ON_KEY_EVENT_TIMEOUT,
- pendingEvent);
- finishPendingEventLocked(pendingEvent);
- }
- }
- }
- }
-
- private static final class PendingEvent {
- PendingEvent next;
-
- KeyEvent event;
- int policyFlags;
- int sequence;
- boolean handled;
-
- public void clear() {
- if (event != null) {
- event.recycle();
- event = null;
- }
- next = null;
- policyFlags = 0;
- sequence = 0;
- handled = false;
- }
}
final class WindowsForAccessibilityCallback implements
diff --git a/services/accessibility/java/com/android/server/accessibility/KeyEventDispatcher.java b/services/accessibility/java/com/android/server/accessibility/KeyEventDispatcher.java
new file mode 100644
index 0000000..3469565
--- /dev/null
+++ b/services/accessibility/java/com/android/server/accessibility/KeyEventDispatcher.java
@@ -0,0 +1,285 @@
+/*
+ ** Copyright 2015, The Android Open Source Project
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+package com.android.server.accessibility;
+
+import android.accessibilityservice.AccessibilityServiceInfo;
+import android.os.Handler;
+import android.os.Message;
+import android.os.RemoteException;
+import android.util.ArrayMap;
+import android.util.Pools;
+import android.util.Pools.Pool;
+import android.util.Slog;
+import android.view.InputEventConsistencyVerifier;
+import android.view.KeyEvent;
+import android.view.WindowManagerPolicy;
+
+import com.android.server.accessibility.AccessibilityManagerService.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Dispatcher to send KeyEvents to all accessibility services that are able to process them.
+ * Events that are handled by one or more services are consumed. Events that are not processed
+ * by any service (or time out before a service reports them as handled) are passed along to
+ * the rest of the system.
+ *
+ * The class assumes that services report their return values in order, which is valid because
+ * they process each call to {@code AccessibilityService.onKeyEvent} on a single thread, and so
+ * don't see the N+1th event until they have processed the Nth event.
+ */
+public class KeyEventDispatcher {
+ // Debugging
+ private static final String LOG_TAG = "KeyEventDispatcher";
+ private static final boolean DEBUG = false;
+ /* KeyEvents must be processed in this time interval */
+ private static final long ON_KEY_EVENT_TIMEOUT_MILLIS = 500;
+ private static final int MSG_ON_KEY_EVENT_TIMEOUT = 1;
+ private static final int MAX_POOL_SIZE = 10;
+
+ private final Pool<PendingKeyEvent> mPendingEventPool = new Pools.SimplePool<>(MAX_POOL_SIZE);
+ private final Object mLock;
+
+ /*
+ * Track events sent to each service. If a KeyEvent is to be sent to at least one service,
+ * a corresponding PendingKeyEvent is created for it. This PendingKeyEvent is placed in
+ * the list for each service its KeyEvent is sent to. It is removed from the list when
+ * the service calls setOnKeyEventResult, or when we time out waiting for the service to
+ * respond.
+ */
+ private final Map<Service, ArrayList<PendingKeyEvent>> mPendingEventsMap = new ArrayMap<>();
+
+ private final InputEventConsistencyVerifier mSentEventsVerifier;
+ private final Handler mHandlerToSendKeyEventsToInputFilter;
+ private final int mMessageTypeForSendKeyEvent;
+ private final Handler mKeyEventTimeoutHandler;
+
+ /**
+ * @param handlerToSendKeyEventsToInputFilter The handler to which to post {@code KeyEvent}s
+ * that have not been handled by any accessibility service.
+ * @param messageTypeForSendKeyEvent The field to populate {@code message.what} for the
+ * message that carries a {@code KeyEvent} to be sent to the input filter
+ * @param lock The lock used for all synchronization in this package. This lock must be held
+ * when calling {@code notifyKeyEventLocked}
+ */
+ public KeyEventDispatcher(Handler handlerToSendKeyEventsToInputFilter,
+ int messageTypeForSendKeyEvent, Object lock) {
+ if (InputEventConsistencyVerifier.isInstrumentationEnabled()) {
+ mSentEventsVerifier = new InputEventConsistencyVerifier(
+ this, 0, KeyEventDispatcher.class.getSimpleName());
+ } else {
+ mSentEventsVerifier = null;
+ }
+ mHandlerToSendKeyEventsToInputFilter = handlerToSendKeyEventsToInputFilter;
+ mMessageTypeForSendKeyEvent = messageTypeForSendKeyEvent;
+ mKeyEventTimeoutHandler =
+ new Handler(mHandlerToSendKeyEventsToInputFilter.getLooper(), new Callback());
+ mLock = lock;
+ }
+
+ /**
+ * Notify that a new KeyEvent is available to accessibility services. Must be called with the
+ * lock used to construct this object held. The boundServices list must also be protected
+ * by a lock.
+ *
+ * @param event The new key event
+ * @param policyFlags Flags for the event
+ * @param boundServices A list of currently bound AccessibilityServices
+ *
+ * @return {@code true} if the event was passed to at least one AccessibilityService,
+ * {@code false} otherwise.
+ */
+ // TODO: The locking policy for boundServices needs some thought.
+ public boolean notifyKeyEventLocked(
+ KeyEvent event, int policyFlags, List<Service> boundServices) {
+ PendingKeyEvent pendingKeyEvent = null;
+ KeyEvent localClone = KeyEvent.obtain(event);
+ for (int i = 0; i < boundServices.size(); i++) {
+ Service service = boundServices.get(i);
+ // Key events are handled only by services that declared
+ // this capability and requested to filter key events.
+ if (!service.mRequestFilterKeyEvents) {
+ continue;
+ }
+ int filterKeyEventBit = service.mAccessibilityServiceInfo.getCapabilities()
+ & AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS;
+ if (filterKeyEventBit == 0) {
+ continue;
+ }
+
+ try {
+ // The event will be cloned in the IPC call, so it doesn't need to be here.
+ service.mServiceInterface.onKeyEvent(localClone, localClone.getSequenceNumber());
+ } catch (RemoteException re) {
+ continue;
+ }
+
+ if (pendingKeyEvent == null) {
+ pendingKeyEvent = obtainPendingEventLocked(localClone, policyFlags);
+ }
+ ArrayList<PendingKeyEvent> pendingEventList = mPendingEventsMap.get(service);
+ if (pendingEventList == null) {
+ pendingEventList = new ArrayList<>();
+ mPendingEventsMap.put(service, pendingEventList);
+ }
+ pendingEventList.add(pendingKeyEvent);
+ pendingKeyEvent.referenceCount++;
+ }
+
+ if (pendingKeyEvent == null) {
+ localClone.recycle();
+ return false;
+ }
+
+ Message message = mKeyEventTimeoutHandler.obtainMessage(
+ MSG_ON_KEY_EVENT_TIMEOUT, pendingKeyEvent);
+ mKeyEventTimeoutHandler.sendMessageDelayed(message, ON_KEY_EVENT_TIMEOUT_MILLIS);
+ return true;
+ }
+
+ /**
+ * Set the result from onKeyEvent from one service.
+ *
+ * @param service The service setting the result
+ * @param handled {@code true} if the service handled the {@code KeyEvent}
+ * @param sequence The sequence number of the {@code KeyEvent}
+ */
+ public void setOnKeyEventResult(Service service, boolean handled, int sequence) {
+ synchronized (mLock) {
+ PendingKeyEvent pendingEvent =
+ removeEventFromListLocked(mPendingEventsMap.get(service), sequence);
+ if (pendingEvent != null) {
+ pendingEvent.handled |= handled;
+ removeReferenceToPendingEventLocked(pendingEvent);
+ }
+ }
+ }
+
+ /**
+ * Flush all pending key events for a service, treating all of them as unhandled
+ *
+ * @param service The service for which to flush events
+ */
+ public void flush(Service service) {
+ synchronized (mLock) {
+ List<PendingKeyEvent> pendingEvents = mPendingEventsMap.get(service);
+ if (pendingEvents != null) {
+ for (int i = 0; i < pendingEvents.size(); i++) {
+ PendingKeyEvent pendingEvent = pendingEvents.get(i);
+ removeReferenceToPendingEventLocked(pendingEvent);
+ }
+ mPendingEventsMap.remove(service);
+ }
+ }
+ }
+
+ private PendingKeyEvent obtainPendingEventLocked(KeyEvent event, int policyFlags) {
+ PendingKeyEvent pendingEvent = mPendingEventPool.acquire();
+ if (pendingEvent == null) {
+ pendingEvent = new PendingKeyEvent();
+ }
+ pendingEvent.event = event;
+ pendingEvent.policyFlags = policyFlags;
+ pendingEvent.referenceCount = 0;
+ pendingEvent.handled = false;
+ return pendingEvent;
+ }
+
+ private static PendingKeyEvent removeEventFromListLocked(
+ List<PendingKeyEvent> listOfEvents, int sequence) {
+ /* In normal operation, the event should be first */
+ for (int i = 0; i < listOfEvents.size(); i++) {
+ PendingKeyEvent pendingKeyEvent = listOfEvents.get(i);
+ if (pendingKeyEvent.event.getSequenceNumber() == sequence) {
+ /*
+ * Removing the first element of the ArrayList can be slow if there are a lot
+ * of events backed up, but for a handful of events it's better than incurring
+ * the fixed overhead of LinkedList. An ArrayList optimized for removing the
+ * first element (by treating the underlying array as a circular buffer) would
+ * be ideal.
+ */
+ listOfEvents.remove(pendingKeyEvent);
+ return pendingKeyEvent;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * @param pendingEvent The event whose reference count should be decreased
+ * @return {@code true} if the event was release, {@code false} if not.
+ */
+ private boolean removeReferenceToPendingEventLocked(PendingKeyEvent pendingEvent) {
+ if (--pendingEvent.referenceCount > 0) {
+ return false;
+ }
+ mKeyEventTimeoutHandler.removeMessages(MSG_ON_KEY_EVENT_TIMEOUT, pendingEvent);
+ if (!pendingEvent.handled) {
+ /* Pass event to input filter */
+ if (DEBUG) {
+ Slog.i(LOG_TAG, "Injecting event: " + pendingEvent.event);
+ }
+ if (mSentEventsVerifier != null) {
+ mSentEventsVerifier.onKeyEvent(pendingEvent.event, 0);
+ }
+ int policyFlags = pendingEvent.policyFlags | WindowManagerPolicy.FLAG_PASS_TO_USER;
+ mHandlerToSendKeyEventsToInputFilter
+ .obtainMessage(mMessageTypeForSendKeyEvent, policyFlags, 0, pendingEvent.event)
+ .sendToTarget();
+ } else {
+ pendingEvent.event.recycle();
+ }
+ mPendingEventPool.release(pendingEvent);
+ return true;
+ }
+
+ private static final class PendingKeyEvent {
+ /* Event and policyFlag provided in notifyKeyEventLocked */
+ KeyEvent event;
+ int policyFlags;
+ /*
+ * The referenceCount optimizes the process of determining the number of services
+ * still holding a KeyEvent. It must be equal to the number of times the PendingEvent
+ * appears in mPendingEventsMap, or PendingEvents will leak.
+ */
+ int referenceCount;
+ /* Whether or not at least one service had handled this event */
+ boolean handled;
+ }
+
+ private class Callback implements Handler.Callback {
+ @Override
+ public boolean handleMessage(Message message) {
+ if (message.what != MSG_ON_KEY_EVENT_TIMEOUT) {
+ throw new IllegalArgumentException("Unknown message: " + message.what);
+ }
+ PendingKeyEvent pendingKeyEvent = (PendingKeyEvent) message.obj;
+ synchronized (mLock) {
+ for (ArrayList<PendingKeyEvent> listForService : mPendingEventsMap.values()) {
+ if (listForService.remove(pendingKeyEvent)) {
+ if(removeReferenceToPendingEventLocked(pendingKeyEvent)) {
+ break;
+ }
+ }
+ }
+ }
+ return true;
+ }
+ }
+}