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/*
 * Copyright (C) 2010 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 android.view;

/**
 * An input queue provides a mechanism for an application to receive incoming
 * input events.  Currently only usable from native code.
 */
public final class InputQueue {
    /**
     * Interface to receive notification of when an InputQueue is associated
     * and dissociated with a thread.
     */
    public static interface Callback {
        /**
         * Called when the given InputQueue is now associated with the
         * thread making this call, so it can start receiving events from it.
         */
        void onInputQueueCreated(InputQueue queue);
        
        /**
         * Called when the given InputQueue is no longer associated with
         * the thread and thus not dispatching events.
         */
        void onInputQueueDestroyed(InputQueue queue);
    }

    final InputChannel mChannel;
    
    /** @hide */
    public InputQueue(InputChannel channel) {
        mChannel = channel;
    }
    
    /** @hide */
    public InputChannel getInputChannel() {
        return mChannel;
    }
}