1/*
2 * Copyright (C) 2015 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.systemui.statusbar.phone;
18
19import android.app.ActivityManager.RecentTaskInfo;
20
21import java.util.ArrayList;
22
23/**
24 * Data associated with an app button.
25 */
26class AppButtonData {
27    public final AppInfo appInfo;
28    public boolean pinned;
29    // Recent tasks for this app, sorted by lastActiveTime, descending.
30    public ArrayList<RecentTaskInfo> tasks;
31
32    public AppButtonData(AppInfo appInfo, boolean pinned) {
33        this.appInfo = appInfo;
34        this.pinned = pinned;
35    }
36
37    public int getTaskCount() {
38        return tasks == null ? 0 : tasks.size();
39    }
40
41    /**
42     * Returns true if the button contains no useful information and should be removed.
43     */
44    public boolean isEmpty() {
45        return !pinned && getTaskCount() == 0;
46    }
47
48    public void addTask(RecentTaskInfo task) {
49        if (tasks == null) {
50            tasks = new ArrayList<RecentTaskInfo>();
51        }
52        tasks.add(task);
53    }
54
55    public void clearTasks() {
56        if (tasks != null) {
57            tasks.clear();
58        }
59    }
60}
61