/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.webui.component;
import java.util.List;
import javax.portlet.MimeResponse;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequest;
import javax.portlet.ResourceRequest;
import javax.portlet.ResourceURL;
import org.exoplatform.portal.mop.navigation.GenericScope;
import org.exoplatform.portal.mop.navigation.Scope;
import org.exoplatform.portal.mop.user.UserNode;
import org.exoplatform.portal.webui.navigation.TreeNode;
import org.exoplatform.portal.webui.navigation.UIPortalNavigation;
import org.exoplatform.portal.webui.util.Util;
import org.exoplatform.web.url.navigation.NavigationResource;
import org.exoplatform.web.url.navigation.NodeURL;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.application.portlet.PortletRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.config.annotation.ComponentConfigs;
import org.exoplatform.webui.config.annotation.EventConfig;
import org.exoplatform.webui.core.UIPortletApplication;
import org.exoplatform.webui.core.lifecycle.UIApplicationLifecycle;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* Created by The eXo Platform SARL Author : Dang Van Minh minhdv81@yahoo.com Jul 3, 2006
*/
@ComponentConfigs({
@ComponentConfig(lifecycle = UIApplicationLifecycle.class, template = "system:/groovy/webui/core/UISitemap.gtmpl"),
@ComponentConfig(type = UIPortalNavigation.class, id = "UISiteMap", events = {
@EventConfig(listeners = UIPortalNavigation.CollapseAllNodeActionListener.class),
@EventConfig(listeners = UIPortalNavigation.CollapseNodeActionListener.class) }) })
public class UISitemapPortlet extends UIPortletApplication {
public static final int DEFAULT_LEVEL = 2;
public UISitemapPortlet() throws Exception {
PortletRequestContext context = (PortletRequestContext) WebuiRequestContext.getCurrentInstance();
PortletRequest prequest = context.getRequest();
PortletPreferences prefers = prequest.getPreferences();
String template = prefers.getValue("template", "system:/groovy/webui/core/UISitemapTree.gtmpl");
UIPortalNavigation uiPortalNavigation = addChild(UIPortalNavigation.class, "UISiteMap", null);
uiPortalNavigation.setTemplate(template);
uiPortalNavigation.setUseAjax(isUseAjax());
int level = DEFAULT_LEVEL;
try {
level = Integer.valueOf(prefers.getValue("level", String.valueOf(DEFAULT_LEVEL)));
} catch (Exception ex) {
log.warn("Preference for navigation level can only be integer");
}
if (level <= 0) {
uiPortalNavigation.setScope(Scope.ALL);
} else {
uiPortalNavigation.setScope(GenericScope.treeShape(level));
}
}
@Override
public void serveResource(WebuiRequestContext context) throws Exception {
super.serveResource(context);
ResourceRequest req = context.getRequest();
String nodeID = req.getResourceID();
JSONArray jsChilds = getChildrenAsJSON(nodeID);
if (jsChilds == null) {
return;
}
MimeResponse res = context.getResponse();
res.setContentType("text/json");
res.getWriter().write(jsChilds.toString());
}
private JSONArray getChildrenAsJSON(String nodeID) throws Exception {
WebuiRequestContext context = WebuiRequestContext.getCurrentInstance();
List<TreeNode> childs = null;
UIPortalNavigation uiPortalNavigation = getChild(UIPortalNavigation.class);
TreeNode tnode = uiPortalNavigation.getTreeNodes().findNodes(nodeID);
if (tnode != null) {
UserNode userNode = uiPortalNavigation.updateNode(tnode.getNode());
if (userNode != null) {
tnode.setExpanded(true);
tnode.setChildren(userNode.getChildren());
childs = tnode.getChildren();
}
}
JSONArray jsChilds = new JSONArray();
if (childs == null) {
return null;
}
MimeResponse res = context.getResponse();
for (TreeNode child : childs) {
jsChilds.put(toJSON(child, res));
}
return jsChilds;
}
private JSONObject toJSON(TreeNode tnode, MimeResponse res) throws Exception {
UIPortalNavigation uiPortalNavigation = getChild(UIPortalNavigation.class);
JSONObject json = new JSONObject();
UserNode node = tnode.getNode();
String nodeId = node.getId();
json.put("label", node.getEncodedResolvedLabel());
json.put("hasChild", tnode.hasChild());
json.put("isExpanded", tnode.isExpanded());
json.put("collapseURL", uiPortalNavigation.url("CollapseNode", nodeId));
ResourceURL rsURL = res.createResourceURL();
rsURL.setResourceID(nodeId);
json.put("getNodeURL", rsURL.toString());
if (node.getPageRef() != null) {
NavigationResource resource = new NavigationResource(node);
NodeURL url = Util.getPortalRequestContext().createURL(NodeURL.TYPE, resource);
url.setAjax(isUseAjax());
json.put("actionLink", url.toString());
}
JSONArray childs = new JSONArray();
for (TreeNode child : tnode.getChildren()) {
childs.put(toJSON(child, res));
}
json.put("childs", childs);
return json;
}
public boolean isUseAjax() {
PortletRequestContext context = (PortletRequestContext) WebuiRequestContext.getCurrentInstance();
PortletRequest prequest = context.getRequest();
PortletPreferences prefers = prequest.getPreferences();
return Boolean.valueOf(prefers.getValue("useAJAX", "true"));
}
}