/**
* 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>
* frentix GmbH, Switzerland, http://www.frentix.com
* <p>
*/
package org.olat.registration;
import java.util.Locale;
import java.util.Map;
import org.olat.core.commons.chiefcontrollers.LanguageChangedEvent;
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.FormUIFactory;
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.components.form.flexible.impl.FormLayoutContainer;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.Event;
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;
import org.olat.dispatcher.LocaleNegotiator;
/**
* Description:<br>
* TODO: srosse Class Description for LanguageChooserController
*
* <P>
* Initial Date: 17 nov. 2009 <br>
* @author srosse, stephane.rosse@frentix.com, www.frentix.com
*/
public class LanguageChooserController extends FormBasicController {
private String curlang;
private SingleSelection langs;
private boolean fireStandardEvent = true;
/**
* @param ureq
* @param wControl
* @param fireStandardEvent fire event with the standard fireEvent method of the controller, otherwise
* use the singleUserEventCenter
*/
public LanguageChooserController(UserRequest ureq, WindowControl wControl, boolean fireStandardEvent) {
super(ureq, wControl);
this.fireStandardEvent = fireStandardEvent;
curlang = ureq.getLocale().toString();
initForm(ureq);
}
/**
* @see org.olat.core.gui.components.form.flexible.FormDefaultController#formOK(org.olat.core.gui.UserRequest)
*/
@Override
protected void formOK(UserRequest ureq) {
fireEvent(ureq, Event.DONE_EVENT);
}
@Override
protected void formCancelled(UserRequest ureq) {
fireEvent(ureq, Event.CANCELLED_EVENT);
}
/**
* @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
protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
if(source == langs) {
Locale loc = I18nManager.getInstance().getLocaleOrDefault(getSelectedLanguage());
MultiUserEvent mue = new LanguageChangedEvent(loc, ureq);
setLocale(loc, true);
ureq.getUserSession().setLocale(loc);
ureq.getUserSession().putEntry(LocaleNegotiator.NEGOTIATED_LOCALE, loc);
FormLayoutContainer langLayout = (FormLayoutContainer)flc.getFormComponent("langLayout");
langLayout.contextPut("languageCode", loc.toString());
langLayout.contextPut("selectLanguage", translate("select.language"));
if(fireStandardEvent) {
fireEvent(ureq, mue);
} else {
OLATResourceable wrappedLocale = OresHelper.createOLATResourceableType(Locale.class);
ureq.getUserSession().getSingleUserEventCenter().fireEventToListenersOf(mue, wrappedLocale);
}
}
}
/**
* 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) {
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");
final FormLayoutContainer langLayout = FormLayoutContainer.createCustomFormLayout("langLayout", getTranslator(), velocity_root + "/langchooser.html");
formLayout.add(langLayout);
langs = uifactory.addDropdownSingleselect("select.language", langLayout, langKeys, langValues, langCssClasses);
langs.addActionListener(this, FormEvent.ONCHANGE);
langs.select(curlang, true);
Locale loc = I18nManager.getInstance().getLocaleOrDefault(curlang);
langLayout.contextPut("languageCode", loc.toString());
langLayout.contextPut("selectLanguage", translate("select.language"));
final FormLayoutContainer buttonLayout = FormLayoutContainer.createButtonLayout("buttonLayout", getTranslator());
formLayout.add(buttonLayout);
uifactory.addFormSubmitButton("submit", buttonLayout);
uifactory.addFormCancelButton("cancel", buttonLayout, ureq, getWindowControl());
}
/**
* @see org.olat.core.gui.control.DefaultController#doDispose(boolean)
*/
@Override
protected void doDispose() {
langs = null;
}
}