| /* |
| * Copyright (C) 2014 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.systemui.qs; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.os.Handler; |
| import android.provider.Settings.Global; |
| |
| import com.android.systemui.statusbar.policy.Listenable; |
| |
| /** Helper for managing a global setting. **/ |
| public abstract class GlobalSetting extends ContentObserver implements Listenable { |
| private final Context mContext; |
| private final String mSettingName; |
| |
| protected abstract void handleValueChanged(int value); |
| |
| public GlobalSetting(Context context, Handler handler, String settingName) { |
| super(handler); |
| mContext = context; |
| mSettingName = settingName; |
| } |
| |
| public int getValue() { |
| return Global.getInt(mContext.getContentResolver(), mSettingName, 0); |
| } |
| |
| public void setValue(int value) { |
| Global.putInt(mContext.getContentResolver(), mSettingName, value); |
| } |
| |
| @Override |
| public void setListening(boolean listening) { |
| if (listening) { |
| mContext.getContentResolver().registerContentObserver( |
| Global.getUriFor(mSettingName), false, this); |
| } else { |
| mContext.getContentResolver().unregisterContentObserver(this); |
| } |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| handleValueChanged(getValue()); |
| } |
| } |