HotspotTile.java revision c247b8f7270dd70ecc36977fcc0530217879f665 
1/*
2 * Copyright (C) 2014 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.qs.tiles;
18
19import android.content.BroadcastReceiver;
20import android.content.Context;
21import android.content.Intent;
22
23import com.android.systemui.R;
24import com.android.systemui.qs.UsageTracker;
25import com.android.systemui.qs.QSTile;
26import com.android.systemui.statusbar.policy.HotspotController;
27
28/** Quick settings tile: Hotspot **/
29public class HotspotTile extends QSTile<QSTile.BooleanState> {
30    private final HotspotController mController;
31    private final Callback mCallback = new Callback();
32    private final UsageTracker mUsageTracker;
33
34    public HotspotTile(Host host) {
35        super(host);
36        mController = host.getHotspotController();
37        mUsageTracker = newUsageTracker(host.getContext());
38        mUsageTracker.setListening(true);
39    }
40
41    @Override
42    protected void handleDestroy() {
43        super.handleDestroy();
44        mUsageTracker.setListening(false);
45    }
46
47    @Override
48    protected BooleanState newTileState() {
49        return new BooleanState();
50    }
51
52    @Override
53    public void setListening(boolean listening) {
54        if (listening) {
55            mController.addCallback(mCallback);
56        } else {
57            mController.removeCallback(mCallback);
58        }
59    }
60
61    @Override
62    protected void handleClick() {
63        final boolean isEnabled = (Boolean) mState.value;
64        mController.setHotspotEnabled(!isEnabled);
65    }
66
67    @Override
68    protected void handleLongClick() {
69        if (mState.value) return;  // don't allow usage reset if hotspot is active
70        final String title = mContext.getString(R.string.quick_settings_reset_confirmation_title,
71                mState.label);
72        mUsageTracker.showResetConfirmation(title, new Runnable() {
73            @Override
74            public void run() {
75                refreshState();
76            }
77        });
78    }
79
80    @Override
81    protected void handleUpdateState(BooleanState state, Object arg) {
82        state.visible = mController.isHotspotSupported() && mUsageTracker.isRecentlyUsed()
83                && !mController.isProvisioningNeeded();
84        state.label = mContext.getString(R.string.quick_settings_hotspot_label);
85
86        state.value = mController.isHotspotEnabled();
87        state.icon = ResourceIcon.get(state.visible && state.value ? R.drawable.ic_qs_hotspot_on
88                : R.drawable.ic_qs_hotspot_off);
89    }
90
91    @Override
92    protected String composeChangeAnnouncement() {
93        if (mState.value) {
94            return mContext.getString(R.string.accessibility_quick_settings_hotspot_changed_on);
95        } else {
96            return mContext.getString(R.string.accessibility_quick_settings_hotspot_changed_off);
97        }
98    }
99
100    private static UsageTracker newUsageTracker(Context context) {
101        return new UsageTracker(context, HotspotTile.class, R.integer.days_to_show_hotspot_tile);
102    }
103
104    private final class Callback implements HotspotController.Callback {
105        @Override
106        public void onHotspotChanged(boolean enabled) {
107            refreshState();
108        }
109    };
110
111    /**
112     * This will catch broadcasts for changes in hotspot state so we can show
113     * the hotspot tile for a number of days after use.
114     */
115    public static class APChangedReceiver extends BroadcastReceiver {
116        private UsageTracker mUsageTracker;
117
118        @Override
119        public void onReceive(Context context, Intent intent) {
120            if (mUsageTracker == null) {
121                mUsageTracker = newUsageTracker(context);
122            }
123            mUsageTracker.trackUsage();
124        }
125    }
126}
127