1/*
2 * Copyright (C) 2011 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.camera.ui;
18
19import android.content.Context;
20import android.view.View;
21
22import java.util.ArrayList;
23import java.util.HashMap;
24
25/**
26 * A manager which notifies the event of a new popup in order to dismiss the
27 * old popup if exists.
28 */
29public class PopupManager {
30    private static HashMap<Context, PopupManager> sMap =
31            new HashMap<Context, PopupManager>();
32
33    public interface OnOtherPopupShowedListener {
34        public void onOtherPopupShowed();
35    }
36
37    private PopupManager() {}
38
39    private ArrayList<OnOtherPopupShowedListener> mListeners = new ArrayList();
40
41    public void notifyShowPopup(View view) {
42        for (OnOtherPopupShowedListener listener : mListeners) {
43            if ((View) listener != view) {
44                listener.onOtherPopupShowed();
45            }
46        }
47    }
48
49    public void setOnOtherPopupShowedListener(OnOtherPopupShowedListener listener) {
50        mListeners.add(listener);
51    }
52
53    public static PopupManager getInstance(Context context) {
54        PopupManager instance = sMap.get(context);
55        if (instance == null) {
56            instance = new PopupManager();
57            sMap.put(context, instance);
58        }
59        return instance;
60    }
61
62    public static void removeInstance(Context context) {
63        PopupManager instance = sMap.get(context);
64        sMap.remove(context);
65    }
66}
67