package org.geoserver.web.data.resource;
import java.util.Arrays;
import java.util.List;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.ajax.markup.html.form.AjaxButton;
import org.apache.wicket.behavior.SimpleAttributeModifier;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.form.validation.FormComponentFeedbackBorder;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.validation.validator.UrlValidator;
import org.geoserver.catalog.MetadataLinkInfo;
import org.geoserver.catalog.ResourceInfo;
/**
* Shows and allows editing of the {@link MetadataLinkInfo} attached to a
* {@link ResourceInfo}
*
* @author Andrea Aime - OpenGeo
*
*/
@SuppressWarnings("serial")
public class MetadataLinkEditor extends Panel {
private static final List<String> LINK_TYPES = Arrays.asList("FGDC",
"TC211", "other");
private ListView links;
private Label noMetadata;
private WebMarkupContainer table;
/**
* @param id
* @param model Must return a {@link ResourceInfo}
*/
public MetadataLinkEditor(String id, final IModel resourceModel) {
super(id, resourceModel);
// container for ajax updates
final WebMarkupContainer container = new WebMarkupContainer("container");
container.setOutputMarkupId(true);
add(container);
// the link list
table = new WebMarkupContainer("table");
table.setOutputMarkupId(true);
container.add(table);
links = new ListView("links", new PropertyModel(resourceModel, "metadataLinks")) {
@Override
protected void populateItem(ListItem item) {
// odd/even style
item.add(new SimpleAttributeModifier("class",
item.getIndex() % 2 == 0 ? "even" : "odd"));
// link info
DropDownChoice dropDownChoice = new DropDownChoice("type",
new PropertyModel(item.getModel(), "metadataType"), LINK_TYPES);
dropDownChoice.setRequired(true);
item.add(dropDownChoice);
FormComponentFeedbackBorder urlBorder = new FormComponentFeedbackBorder("urlBorder");
item.add(urlBorder);
TextField format = new TextField("format", new PropertyModel(item.getModel(), "type"));
format.setRequired(true);
item.add(format);
TextField url = new TextField("metadataLinkURL", new PropertyModel(item.getModel(), "content"));
url.add(new UrlValidator());
url.setRequired(true);
urlBorder.add(url);
// remove link
AjaxLink link = new AjaxLink("removeLink", item.getModel()) {
@Override
public void onClick(AjaxRequestTarget target) {
ResourceInfo ri = (ResourceInfo) resourceModel.getObject();
ri.getMetadataLinks().remove(getModelObject());
updateLinksVisibility();
target.addComponent(container);
}
};
item.add(link);
}
};
// this is necessary to avoid loosing item contents on edit/validation checks
links.setReuseItems(true);
table.add(links);
// the no metadata links label
noMetadata = new Label("noLinks", new ResourceModel("noMetadataLinksSoFar"));
container.add(noMetadata);
updateLinksVisibility();
// add new link button
AjaxButton button = new AjaxButton("addlink") {
@Override
protected void onSubmit(AjaxRequestTarget target, Form form) {
ResourceInfo ri = (ResourceInfo) resourceModel.getObject();
MetadataLinkInfo link = ri.getCatalog().getFactory().createMetadataLink();;
link.setMetadataType(LINK_TYPES.get(0));
link.setType("text/plain");
ri.getMetadataLinks().add(link);
updateLinksVisibility();
target.addComponent(container);
}
};
add(button);
}
private void updateLinksVisibility() {
ResourceInfo ri = (ResourceInfo) getModelObject();
boolean anyLink = ri.getMetadataLinks().size() > 0;
table.setVisible(anyLink);
noMetadata.setVisible(!anyLink);
}
}