blob: 2baf261dd723e629f7b2bfb5add5153b5655fcc7 [file] [log] [blame]
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import android.content.Context;
import android.provider.Settings;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.Preference;
import android.text.TextUtils;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.core.AbstractPreferenceController;
/**
* {@link AbstractPreferenceController} that controls whether we should fall back to celluar when
* wifi is bad.
*/
public class CellularFallbackPreferenceController extends AbstractPreferenceController
implements PreferenceControllerMixin {
private static final String KEY_CELLULAR_FALLBACK = "wifi_cellular_data_fallback";
public CellularFallbackPreferenceController(Context context) {
super(context);
}
@Override
public boolean isAvailable() {
return !avoidBadWifiConfig();
}
@Override
public String getPreferenceKey() {
return KEY_CELLULAR_FALLBACK;
}
@Override
public boolean handlePreferenceTreeClick(Preference preference) {
if (!TextUtils.equals(preference.getKey(), KEY_CELLULAR_FALLBACK)) {
return false;
}
if (!(preference instanceof SwitchPreference)) {
return false;
}
// On: avoid bad wifi. Off: prompt.
String settingName = Settings.Global.NETWORK_AVOID_BAD_WIFI;
Settings.Global.putString(mContext.getContentResolver(), settingName,
((SwitchPreference) preference).isChecked() ? "1" : null);
return true;
}
@Override
public void updateState(Preference preference) {
final boolean currentSetting = avoidBadWifiCurrentSettings();
// TODO: can this ever be null? The return value of avoidBadWifiConfig() can only
// change if the resources change, but if that happens the activity will be recreated...
if (preference != null) {
SwitchPreference pref = (SwitchPreference) preference;
pref.setChecked(currentSetting);
}
}
private boolean avoidBadWifiConfig() {
return mContext.getResources().getInteger(
com.android.internal.R.integer.config_networkAvoidBadWifi) == 1;
}
private boolean avoidBadWifiCurrentSettings() {
return "1".equals(Settings.Global.getString(mContext.getContentResolver(),
Settings.Global.NETWORK_AVOID_BAD_WIFI));
}
}