1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.view;
18
19/**
20 * An input queue provides a mechanism for an application to receive incoming
21 * input events.  Currently only usable from native code.
22 */
23public final class InputQueue {
24    /**
25     * Interface to receive notification of when an InputQueue is associated
26     * and dissociated with a thread.
27     */
28    public static interface Callback {
29        /**
30         * Called when the given InputQueue is now associated with the
31         * thread making this call, so it can start receiving events from it.
32         */
33        void onInputQueueCreated(InputQueue queue);
34
35        /**
36         * Called when the given InputQueue is no longer associated with
37         * the thread and thus not dispatching events.
38         */
39        void onInputQueueDestroyed(InputQueue queue);
40    }
41
42    final InputChannel mChannel;
43
44    /** @hide */
45    public InputQueue(InputChannel channel) {
46        mChannel = channel;
47    }
48
49    /** @hide */
50    public InputChannel getInputChannel() {
51        return mChannel;
52    }
53}
54