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/*
* Copyright (C) 2015 The CyanogenMod 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.cyanogenmod;
import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Handler;
import android.widget.Switch;
import com.android.settings.widget.SwitchBar;
import cyanogenmod.providers.CMSettings;
public class CMBaseSystemSettingSwitchBar implements SwitchBar.OnSwitchChangeListener {
private Context mContext;
private SwitchBar mSwitchBar;
private SettingsObserver mSettingsObserver;
private boolean mListeningToOnSwitchChange = false;
private boolean mStateMachineEvent;
private final String mSettingKey;
private final int mDefaultState;
private final SwitchBarChangeCallback mCallback;
public interface SwitchBarChangeCallback {
public void onEnablerChanged(boolean isEnabled);
}
public CMBaseSystemSettingSwitchBar(Context context, SwitchBar switchBar, String key,
boolean defaultState, SwitchBarChangeCallback callback) {
mContext = context;
mSwitchBar = switchBar;
mSettingKey = key;
mDefaultState = defaultState ? 1 : 0;
mCallback = callback;
mSettingsObserver = new SettingsObserver(new Handler());
setupSwitchBar();
}
public void setupSwitchBar() {
setSwitchState();
if (!mListeningToOnSwitchChange) {
mSwitchBar.addOnSwitchChangeListener(this);
mListeningToOnSwitchChange = true;
}
mSwitchBar.show();
}
public void teardownSwitchBar() {
if (mListeningToOnSwitchChange) {
mSwitchBar.removeOnSwitchChangeListener(this);
mListeningToOnSwitchChange = false;
}
mSwitchBar.hide();
}
public void resume(Context context) {
mContext = context;
if (!mListeningToOnSwitchChange) {
mSwitchBar.addOnSwitchChangeListener(this);
mSettingsObserver.observe();
mListeningToOnSwitchChange = true;
}
}
public void pause() {
if (mListeningToOnSwitchChange) {
mSwitchBar.removeOnSwitchChangeListener(this);
mSettingsObserver.unobserve();
mListeningToOnSwitchChange = false;
}
}
private void setSwitchBarChecked(boolean checked) {
mStateMachineEvent = true;
mSwitchBar.setChecked(checked);
mStateMachineEvent = false;
if (mCallback != null) {
mCallback.onEnablerChanged(checked);
}
}
private void setSwitchState() {
boolean enabled = CMSettings.System.getInt(mContext.getContentResolver(),
mSettingKey, mDefaultState) == 1;
mStateMachineEvent = true;
setSwitchBarChecked(enabled);
mStateMachineEvent = false;
}
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
//Do nothing if called as a result of a state machine event
if (mStateMachineEvent) {
return;
}
// Handle a switch change
CMSettings.System.putInt(mContext.getContentResolver(),
mSettingKey, isChecked ? 1 : 0);
if (mCallback != null) {
mCallback.onEnablerChanged(isChecked);
}
}
class SettingsObserver extends ContentObserver {
SettingsObserver(Handler handler) {
super(handler);
}
void observe() {
ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(CMSettings.System.getUriFor(
mSettingKey), false, this);
update();
}
void unobserve() {
ContentResolver resolver = mContext.getContentResolver();
resolver.unregisterContentObserver(this);
}
@Override
public void onChange(boolean selfChange) {
update();
}
@Override
public void onChange(boolean selfChange, Uri uri) {
update();
}
public void update() {
setSwitchState();
}
}
}
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