/**
* 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.Collection;
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.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.core.UIPortletApplication;
import org.exoplatform.webui.core.lifecycle.UIApplicationLifecycle;
import org.json.JSONArray;
import org.json.JSONObject;
@ComponentConfigs({ @ComponentConfig(lifecycle = UIApplicationLifecycle.class),
@ComponentConfig(type = UIPortalNavigation.class, id = "UIHorizontalNavigation") })
public class UINavigationPortlet extends UIPortletApplication {
public static final int DEFAULT_LEVEL = 2;
public UINavigationPortlet() throws Exception {
PortletRequestContext context = (PortletRequestContext) WebuiRequestContext.getCurrentInstance();
PortletRequest prequest = context.getRequest();
PortletPreferences prefers = prequest.getPreferences();
String template = prefers.getValue("template", "app:/groovy/portal/webui/component/UIPortalNavigation.gtmpl");
UIPortalNavigation portalNavigation = addChild(UIPortalNavigation.class, "UIHorizontalNavigation", null);
portalNavigation.setUseAjax(isUseAjax());
portalNavigation.setShowUserNavigation(Boolean.valueOf(prefers.getValue("showUserNavigation", "true")));
portalNavigation.setTemplate(template);
portalNavigation.setCssClassName(prefers.getValue("CSSClassName", ""));
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) {
portalNavigation.setScope(Scope.ALL);
} else {
portalNavigation.setScope(GenericScope.treeShape(level));
}
}
@Override
public void serveResource(WebuiRequestContext context) throws Exception {
super.serveResource(context);
ResourceRequest req = context.getRequest();
String nodeURI = req.getResourceID();
JSONArray jsChilds = getChildrenAsJSON(nodeURI);
if (jsChilds == null) {
return;
}
MimeResponse res = context.getResponse();
res.setContentType("text/json");
res.getWriter().write(jsChilds.toString());
}
public JSONArray getChildrenAsJSON(String nodeURI) throws Exception {
WebuiRequestContext context = WebuiRequestContext.getCurrentInstance();
UIPortalNavigation uiPortalNavigation = getChild(UIPortalNavigation.class);
Collection<UserNode> childs = null;
UserNode userNode = uiPortalNavigation.resolvePath(nodeURI);
if (userNode != null) {
childs = userNode.getChildren();
}
JSONArray jsChilds = new JSONArray();
if (childs == null) {
return null;
}
MimeResponse res = context.getResponse();
for (UserNode child : childs) {
jsChilds.put(toJSON(child, res));
}
return jsChilds;
}
private JSONObject toJSON(UserNode node, MimeResponse res) throws Exception {
JSONObject json = new JSONObject();
String nodeId = node.getId();
json.put("label", node.getEncodedResolvedLabel());
json.put("hasChild", node.getChildrenCount() > 0);
UserNode selectedNode = Util.getUIPortal().getNavPath();
json.put("isSelected", nodeId.equals(selectedNode.getId()));
json.put("icon", node.getIcon());
ResourceURL rsURL = res.createResourceURL();
rsURL.setResourceID(node.getURI());
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 (UserNode child : node.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"));
}
}