/*
* Firetweet - Twitter client for Android
*
* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.getlantern.firetweet.preference;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import org.apache.commons.lang3.ArrayUtils;
import org.getlantern.firetweet.R;
import org.getlantern.firetweet.util.ParseUtils;
import java.util.Map;
public class ValueDependencyDialogPreference extends DialogPreference implements OnSharedPreferenceChangeListener {
private final String mDependencyKey, mDependencyValueDefault;
private final String[] mDependencyValues;
public ValueDependencyDialogPreference(final Context context) {
this(context, null);
}
public ValueDependencyDialogPreference(final Context context, final AttributeSet attrs) {
this(context, attrs, android.R.attr.dialogPreferenceStyle);
}
public ValueDependencyDialogPreference(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
final Resources res = context.getResources();
final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ValueDependencyPreference, defStyle, 0);
mDependencyKey = a.getString(R.styleable.ValueDependencyPreference_dependencyKey);
final int dependencyValueRes = a.getResourceId(R.styleable.ValueDependencyPreference_dependencyValues, 0);
mDependencyValues = dependencyValueRes > 0 ? res.getStringArray(dependencyValueRes) : null;
mDependencyValueDefault = a.getString(R.styleable.ValueDependencyPreference_dependencyValueDefault);
a.recycle();
}
@Override
public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences, final String key) {
if (key.equals(mDependencyKey)) {
updateEnableState();
}
}
@Override
protected void notifyHierarchyChanged() {
super.notifyHierarchyChanged();
updateEnableState();
}
@Override
protected void onAttachedToHierarchy(@NonNull final PreferenceManager preferenceManager) {
super.onAttachedToHierarchy(preferenceManager);
final SharedPreferences prefs = getSharedPreferences();
if (prefs != null) {
prefs.registerOnSharedPreferenceChangeListener(this);
}
updateEnableState();
}
private void updateEnableState() {
final SharedPreferences prefs = getSharedPreferences();
if (prefs == null || mDependencyKey == null || mDependencyValues == null) return;
final Map<String, ?> all = prefs.getAll();
final String valueString = ParseUtils.parseString(all.get(mDependencyKey), mDependencyValueDefault);
setEnabled(ArrayUtils.contains(mDependencyValues, valueString));
}
}