/**
* 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) frentix GmbH<br>
* http://www.frentix.com<br>
* <p>
*/
package org.olat.modules.webFeed.ui;
import java.util.Date;
import org.apache.commons.lang.StringEscapeUtils;
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.FormLink;
import org.olat.core.gui.components.form.flexible.elements.TextElement;
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.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.translator.Translator;
import org.olat.modules.webFeed.managers.FeedManager;
import org.olat.modules.webFeed.managers.ValidatedURL;
import org.olat.modules.webFeed.models.Feed;
/**
* This controller is responsible for editing feed information. <br />
* <h3>Events fired by this controller:</h3>
* <ul>
* <li>Event.CHANGED_EVENT</li>
* <li>Event.CANCELLED_EVENT</li>
* </ul>
* <P>
* Initial Date: Feb 5, 2009 <br>
*
* @author Gregor Wassmann, frentix GmbH, http://www.frentix.com
*/
public class ExternalFeedFormController extends FormBasicController {
private Feed feed;
private TextElement title, description, feedUrl;
private FormLink cancelButton;
/**
* @param ureq
* @param control
* @param feed
*/
public ExternalFeedFormController(UserRequest ureq, WindowControl control, Feed podcast, Translator translator) {
super(ureq, control);
this.feed = podcast;
setTranslator(translator);
initForm(ureq);
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#formOK(org.olat.core.gui.UserRequest)
*/
@Override
public void formOK(UserRequest ureq) {
feed.setTitle(StringEscapeUtils.escapeHtml(title.getValue()).toString());
feed.setDescription(description.getValue());
feed.setExternalFeedUrl(feedUrl.isEmpty() ? null : feedUrl.getValue());
feed.setLastModified(new Date());
this.fireEvent(ureq, Event.CHANGED_EVENT);
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#formInnerEvent(org.olat.core.gui.UserRequest,
* org.olat.core.gui.components.form.flexible.FormItem,
* org.olat.core.gui.components.form.flexible.impl.FormEvent)
*/
protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
if (source == cancelButton && event.wasTriggerdBy(FormEvent.ONCLICK)) {
fireEvent(ureq, Event.CANCELLED_EVENT);
}
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#validateFormLogic(org.olat.core.gui.UserRequest)
*/
@Override
protected boolean validateFormLogic(UserRequest ureq) {
boolean validUrl = false;
if(feedUrl.isEmpty()) {
//allowed
feedUrl.clearError();
validUrl = true;
} else {
//validated feed url
String url = feedUrl.getValue();
String type = feed.getResourceableTypeName();
ValidatedURL validatedUrl = FeedManager.getInstance().validateFeedUrl(url, type);
if(!validatedUrl.getUrl().equals(url)) {
feedUrl.setValue(validatedUrl.getUrl());
}
switch(validatedUrl.getState()) {
case VALID:
feedUrl.clearError();
validUrl = true;
break;
case NO_ENCLOSURE:
feedUrl.setErrorKey("feed.form.feedurl.invalid.no_media", null);
break;
case NOT_FOUND:
feedUrl.setErrorKey("feed.form.feedurl.invalid.not_found", null);
break;
case MALFORMED:
feedUrl.setErrorKey("feed.form.feedurl.invalid", null);
break;
}
}
String descriptionText = description.getValue();
boolean descOk = true;
if(descriptionText.length() <= 4000) {
description.clearError();
} else {
description.setErrorKey("input.toolong", new String[]{"4000"});
descOk = false;
}
return descOk && validUrl && super.validateFormLogic(ureq);
}
/**
* @see org.olat.core.gui.components.form.flexible.impl.FormBasicController#doDispose()
*/
@Override
protected void doDispose() {
// nothing to dispose
}
/**
* @see org.olat.modules.webFeed.ui.podcast.FeedFormController#initForm(org.olat.core.gui.components.form.flexible.FormItemContainer,
* org.olat.core.gui.control.Controller, org.olat.core.gui.UserRequest)
*/
@SuppressWarnings("unused")
protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
this.setFormTitle("feed.edit");
title = uifactory.addTextElement("title", "feed.title.label", 256, feed.getTitle(), this.flc);
title.setMandatory(true);
title.setNotEmptyCheck("feed.form.field.is_mandatory");
// Description
//description = formItemsFactory.addTextAreaElement("description", 5000, 0, 2, true, feed.getDescription(),
// "feed.form.description", this.flc);
description = uifactory.addRichTextElementForStringDataMinimalistic("description", "feed.form.description", feed
.getDescription(), 5, -1, false, formLayout, ureq.getUserSession(), getWindowControl());
description.setMandatory(true);
description.setNotEmptyCheck("feed.form.field.is_mandatory");
// The feed url
feedUrl = uifactory.addTextElement("feedUrl", "feed.form.feedurl", 5000, feed.getExternalFeedUrl(), this.flc);
feedUrl.setDisplaySize(70);
String type = feed.getResourceableTypeName();
if(type != null && type.indexOf("BLOG") >= 0) {
feedUrl.setExampleKey("feed.form.feedurl.example", null);
} else {
feedUrl.setExampleKey("feed.form.feedurl.example_podcast", null);
}
// Submit and cancelButton buttons
final FormLayoutContainer buttonLayout = FormLayoutContainer.createButtonLayout("button_layout", getTranslator());
this.flc.add(buttonLayout);
uifactory.addFormSubmitButton("submit", buttonLayout);
cancelButton = uifactory.addFormLink("cancel", buttonLayout, Link.BUTTON);
}
}