/*
* Copyright 2008 Google Inc.
*
* 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.google.gwt.gadgets.client;
import com.google.gwt.core.client.JsArrayString;
import com.google.gwt.gadgets.client.UserPreferences.DataType;
import com.google.gwt.gadgets.client.UserPreferences.Preference;
/**
* A list of String preferences.
*/
@DataType("list")
public abstract class ListPreference extends Preference<String[]> {
/**
* Returns the value of a list preference as a list of strings.
*
* @return the value of a list preference as a list of strings.
*/
@Override
public String[] getValue() {
JsArrayString result = PreferencesProvider.get().getArray(getName());
if (result == null) {
return null;
}
String[] stringResult = new String[result.length()];
for (int i = 0; i < result.length(); i++) {
stringResult[i] = result.get(i);
}
return stringResult;
}
/**
* Set a preference with a list of strings.
*
* @param value the list of strings to set.
*/
@Override
void set(String[] value) {
PreferencesFeature prefs = PreferencesProvider.get();
JsArrayString array = JsArrayString.createArray().cast();
for (String s : value) {
array.push(s);
}
prefs.setArray(getName(), array);
}
}