/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS,
* <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) 1999-2006 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.core.commons.chiefcontrollers;
import java.util.Locale;
import java.util.Map;
import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.form.flexible.FormItem;
import org.olat.core.gui.components.form.flexible.FormItemContainer;
import org.olat.core.gui.components.form.flexible.elements.SingleSelection;
import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
import org.olat.core.gui.components.form.flexible.impl.FormEvent;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.id.OLATResourceable;
import org.olat.core.util.ArrayHelper;
import org.olat.core.util.StringHelper;
import org.olat.core.util.event.MultiUserEvent;
import org.olat.core.util.i18n.I18nManager;
import org.olat.core.util.resource.OresHelper;
/**
* Description:<br>
* TODO: patrickb Class Description for LanguageChooserController
* <P>
* Initial Date: 25.01.2007 <br>
*
* @author patrickb
*/
public class LanguageChooserController extends FormBasicController {
private SingleSelection langs;
String curlang;
public LanguageChooserController(WindowControl wControl, UserRequest ureq) {
super(ureq, wControl, "langchooser");
// init variables
curlang = ureq.getLocale().toString();
initForm(this.flc, this, ureq);
}
/**
* @see org.olat.core.gui.components.form.flexible.FormDefaultController#formOK(org.olat.core.gui.UserRequest)
*/
@Override
@SuppressWarnings("unused")
protected void formOK(UserRequest ureq) {
// TODO Auto-generated method stub
}
/**
* @see org.olat.core.gui.components.form.flexible.FormDefaultController#formInnerEvent(org.olat.core.gui.UserRequest,
* org.olat.core.gui.components.form.flexible.FormItem,
* org.olat.core.gui.components.form.flexible.FormEvent)
*/
@Override
@SuppressWarnings("unused")
protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
Locale loc = I18nManager.getInstance().getLocaleOrDefault(getSelectedLanguage());
MultiUserEvent mue = new LanguageChangedEvent(loc, ureq);
ureq.getUserSession().setLocale(loc);
ureq.getUserSession().putEntry("negotiated-locale", loc);
OLATResourceable wrappedLocale = OresHelper.createOLATResourceableType(Locale.class);
ureq.getUserSession().getSingleUserEventCenter().fireEventToListenersOf(mue, wrappedLocale);
// Update in velocity for flag
this.flc.contextPut("languageCode", loc.toString());
}
/**
* selected language
*
* @return
*/
public String getSelectedLanguage() {
return langs.getSelectedKey();
}
/**
* @see org.olat.core.gui.components.form.flexible.FormDefaultController#initFormElements(org.olat.core.gui.components.form.flexible.FormItemContainer,
* org.olat.core.gui.control.Controller)
*/
@Override
protected void initForm(FormItemContainer formLayout, Controller listener, final UserRequest ureq) {
// SingleSelectionImpl creates following $r.render("..") names in velocity
// languages_LABEL -> access label of singleselection
// languages_ERROR -> access error of singleselection
// languages_EXAMPLE -> access example of singleselection
// languages_SELBOX -> render whole selection as selectionbox
// radiobuttons are accessed by appending the key, for example by
// languages_yes languages_no
//
Map<String, String> languages = I18nManager.getInstance().getEnabledLanguagesTranslated();
String[] langKeys = StringHelper.getMapKeysAsStringArray(languages);
String[] langValues = StringHelper.getMapValuesAsStringArray(languages);
ArrayHelper.sort(langKeys, langValues, false, true, false);
// Build css classes for reference languages
String[] langCssClasses = I18nManager.getInstance().createLanguageFlagsCssClasses(langKeys, "b_with_small_icon_left");
langs = uifactory.addDropdownSingleselect("select.language", formLayout, langKeys, langValues, langCssClasses);
langs.addActionListener(this, FormEvent.ONCHANGE);
langs.select(curlang, true);
// Add to velocity for flag
this.flc.contextPut("languageCode", curlang.toString());
}
/**
* @see org.olat.core.gui.control.DefaultController#doDispose(boolean)
*/
@Override
protected void doDispose() {
langs = null;
}
}