1/*
2 * Copyright (C) 2017 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.settings.wifi.tether;
18
19import android.content.Context;
20import android.net.ConnectivityManager;
21import android.net.wifi.WifiManager;
22import android.support.v7.preference.Preference;
23import android.support.v7.preference.PreferenceScreen;
24
25import com.android.settings.core.PreferenceControllerMixin;
26import com.android.settingslib.core.AbstractPreferenceController;
27
28public abstract class WifiTetherBasePreferenceController extends AbstractPreferenceController
29        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
30
31    public interface OnTetherConfigUpdateListener {
32        void onTetherConfigUpdated();
33    }
34
35    protected final WifiManager mWifiManager;
36    protected final String[] mWifiRegexs;
37    protected final ConnectivityManager mCm;
38    protected final OnTetherConfigUpdateListener mListener;
39
40    protected Preference mPreference;
41
42    public WifiTetherBasePreferenceController(Context context,
43            OnTetherConfigUpdateListener listener) {
44        super(context);
45        mListener = listener;
46        mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
47        mCm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
48        mWifiRegexs = mCm.getTetherableWifiRegexs();
49    }
50
51    @Override
52    public boolean isAvailable() {
53        return mWifiManager != null && mWifiRegexs != null && mWifiRegexs.length > 0;
54    }
55
56    @Override
57    public void displayPreference(PreferenceScreen screen) {
58        super.displayPreference(screen);
59        mPreference = screen.findPreference(getPreferenceKey());
60    }
61}
62