/**
* 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) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.core.util.i18n.ui;
import java.io.File;
import java.util.Arrays;
import java.util.Set;
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.FormLink;
import org.olat.core.gui.components.form.flexible.elements.MultipleSelectionElement;
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.components.form.flexible.impl.elements.FormSubmit;
import org.olat.core.gui.components.link.Link;
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.gui.control.generic.modal.DialogBoxController;
import org.olat.core.gui.control.generic.modal.DialogBoxUIFactory;
import org.olat.core.util.i18n.I18nManager;
import org.olat.core.util.i18n.I18nModule;
/**
* Description:<br>
* This form allows the user to delete language packs that are found in the
* olatdata/customizing/lang/packs directory
*
* <h3>Events fired by this controller</h3>
* <ul>
* <li>Event.CANCELLED_EVENT</li>
* <li>Event.DONE_EVENT</li>
* </ul>
* <P>
* Initial Date: 09.12.2008 <br>
*
* @author gnaegi
*/
class I18nConfigSubDeletePackageController extends FormBasicController {
private MultipleSelectionElement deleteLangPackSelection;
private DialogBoxController dialogCtr;
private FormLink cancelButton;
private FormSubmit submitButton;
/**
* Constructor for the delete-language pack workflow
*
* @param ureq
* @param control
*/
public I18nConfigSubDeletePackageController(UserRequest ureq, WindowControl control) {
super(ureq, control, LAYOUT_VERTICAL);
initForm(ureq);
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#initForm(org.olat.core.gui.components.form.flexible.FormItemContainer,
* org.olat.core.gui.control.Controller, org.olat.core.gui.UserRequest)
*/
@Override
protected void initForm(FormItemContainer formLayout, @SuppressWarnings("unused") Controller listener,
@SuppressWarnings("unused") UserRequest ureq) {
// A title, displayed in fieldset
setFormTitle("configuration.management.package.delete.title");
setFormDescription("configuration.management.package.delete.description");
//
// Add languages checkboxes
String[] languagePacks = I18nModule.LANG_PACKS_DIRECTORY.list(I18nManager.jarFileFilter);
Arrays.sort(languagePacks);
deleteLangPackSelection = uifactory.addCheckboxesVertical("configuration.deleteLangPackSelection", null, formLayout, languagePacks,
languagePacks, null, 1);
deleteLangPackSelection.addActionListener(this, FormEvent.ONCLICK);
// Add cancel and submit in button group layout
FormLayoutContainer buttonGroupLayout = FormLayoutContainer.createButtonLayout("buttonGroupLayout", getTranslator());
formLayout.add(buttonGroupLayout);
cancelButton = uifactory.addFormLink("cancel", buttonGroupLayout, Link.BUTTON);
submitButton = uifactory.addFormSubmitButton("configuration.management.package.delete", buttonGroupLayout);
submitButton.setEnabled(false); // enable as soon as something is checked
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#formOK(org.olat.core.gui.UserRequest)
*/
@Override
protected void formOK(UserRequest ureq) {
Set<String> toDelete = deleteLangPackSelection.getSelectedKeys();
if (toDelete.size() == 0) {
// should not happen since button disabled
return;
}
dialogCtr = activateYesNoDialog(ureq, translate("configuration.management.package.delete.confirm.title"), translate(
"configuration.management.package.delete.confirm", toDelete.toString()), dialogCtr);
}
/**
* @see org.olat.core.gui.control.DefaultController#event(org.olat.core.gui.UserRequest,
* org.olat.core.gui.control.Controller, org.olat.core.gui.control.Event)
*/
public void event(UserRequest ureq, Controller source, Event event) {
if (source == dialogCtr) {
if (DialogBoxUIFactory.isYesEvent(event)) {
// Yes case, delete now
for (String deleteLangPack : deleteLangPackSelection.getSelectedKeys()) {
File file = new File(I18nModule.LANG_PACKS_DIRECTORY, deleteLangPack);
if (file.exists()) file.delete();
logAudit("Deleted language pack::" + deleteLangPack, null);
}
// Reset i18n system
I18nModule.reInitialize();
// wow, everything worked fine
showInfo("configuration.management.package.delete.success", deleteLangPackSelection.getSelectedKeys().toString());
fireEvent(ureq, Event.DONE_EVENT);
} else {
// No case, do nothing.
}
}
}
@Override
protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
super.formInnerEvent(ureq, source, event);
if (source == cancelButton) {
fireEvent(ureq, Event.CANCELLED_EVENT);
showInfo("configuration.management.package.delete.cancel");
} else if (source == deleteLangPackSelection) {
if (deleteLangPackSelection.getSelectedKeys().size() == 0) {
submitButton.setEnabled(false);
} else {
submitButton.setEnabled(true);
}
}
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#doDispose()
*/
@Override
protected void doDispose() {
// nothing to dispose
}
}