/* (c) 2014 - 2016 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.web.wicket;
import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.geoserver.web.wicket.GeoServerDataProvider.Property;
import org.geoserver.web.wicket.SRSProvider.SRS;
/**
* A panel which contains a list of all coordinate reference systems available to GeoServer.
* <p>
* Using this compontent in a page would look like:
*
* <pre>
* public class MyPage {
*
* public MyPage() {
* ...
* add( new SRSListPanel( "srsList" ) );
* ...
* }
* }
* </pre>
*
* And the markup:
*
* <pre>
* ...
* <body>
* <div wicket:id="srsList></div>
* </body>
* ...
* </pre>
*
* </p>
* <p>
* Client could should override the method {@link #createLinkForCode(String, IModel)} to provide
* some action when the user clicks on a SRS code in the list.
* </p>
*
* @author Andrea Aime, OpenGeo
* @author Justin Deoliveira, OpenGeo
* @authos Gabriel Roldan, OpenGeo
*
*/
public abstract class SRSListPanel extends Panel {
private static final long serialVersionUID = 3777350932084160337L;
GeoServerTablePanel<SRS> table;
/**
* Creates the new SRS list panel.
*/
public SRSListPanel(String id) {
super(id);
table = new GeoServerTablePanel<SRS>("table", new SRSProvider()) {
private static final long serialVersionUID = 6182776235846912573L;
@Override
protected Component getComponentForProperty(String id, IModel<SRS> itemModel,
Property<SRS> property) {
SRS srs = (SRS) itemModel.getObject();
if (SRSProvider.CODE.equals(property)) {
Component linkForCode = createLinkForCode(id, itemModel);
return linkForCode;
} else if (SRSProvider.DESCRIPTION.equals(property)) {
String description = srs.getDescription();
return new Label(id, description.trim());
} else {
throw new IllegalArgumentException("Unknown property: " + property);
}
}
};
add(table);
}
/**
* Hides the top pager so that the panel shows nicely in a small space (such as in a
* popup window)
* @param compact
*/
public void setCompactMode(boolean compact) {
table.getTopPager().setVisible(!compact);
}
/**
* Creates a link for an epsgCode.
* <p>
* Subclasses may override to perform an action when an epsg code has been selected. This
* default implementation returns a link that does nothing.
* </p>
*
* @param linkId
* The id of the link component to be created.
* @param itemModel
* The epsg code (integer).
*
*/
@SuppressWarnings("unchecked")
protected Component createLinkForCode(String linkId, IModel<SRS> itemModel) {
return new SimpleAjaxLink<Object>(linkId, (IModel<Object>) SRSProvider.CODE.getModel(itemModel)) {
private static final long serialVersionUID = -1330723116026268069L;
@Override
protected void onClick(AjaxRequestTarget target) {
onCodeClicked(target, getDefaultModelObjectAsString());
}
};
}
/**
* Suclasses must override and perform whatever they see fit when a SRS code link is clicked
* @param target
* @param modelObject
*/
protected abstract void onCodeClicked(AjaxRequestTarget target, String epsgCode);
}