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 com.android.gallery3d.ui;
18
19import android.os.Handler;
20import android.os.Message;
21
22import com.android.gallery3d.common.Utils;
23
24public class SynchronizedHandler extends Handler {
25
26    private final GLRoot mRoot;
27
28    public SynchronizedHandler(GLRoot root) {
29        mRoot = Utils.checkNotNull(root);
30    }
31
32    @Override
33    public void dispatchMessage(Message message) {
34        mRoot.lockRenderThread();
35        try {
36            super.dispatchMessage(message);
37        } finally {
38            mRoot.unlockRenderThread();
39        }
40    }
41}
42