/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.qs;
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import android.content.Context;
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import android.database.ContentObserver;
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import android.os.Handler;
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import android.provider.Settings.Global;
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import com.android.systemui.statusbar.policy.Listenable;
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/** Helper for managing a global setting. **/
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public abstract class GlobalSetting extends ContentObserver implements Listenable {
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private final Context mContext;
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private final String mSettingName;
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protected abstract void handleValueChanged(int value);
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public GlobalSetting(Context context, Handler handler, String settingName) {
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super(handler);
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mContext = context;
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mSettingName = settingName;
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}
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public int getValue() {
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return Global.getInt(mContext.getContentResolver(), mSettingName, 0);
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}
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public void setValue(int value) {
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Global.putInt(mContext.getContentResolver(), mSettingName, value);
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}
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@Override
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public void setListening(boolean listening) {
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if (listening) {
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mContext.getContentResolver().registerContentObserver(
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Global.getUriFor(mSettingName), false, this);
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} else {
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mContext.getContentResolver().unregisterContentObserver(this);
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}
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}
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@Override
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public void onChange(boolean selfChange) {
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handleValueChanged(getValue());
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}
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}
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