/* | |
* Copyright 2004 The Apache Software Foundation. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.apache.pluto.driver.tags; | |
import java.io.IOException; | |
import javax.portlet.PortletMode; | |
import javax.portlet.WindowState; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.jsp.JspException; | |
import javax.servlet.jsp.tagext.BodyTagSupport; | |
import javax.servlet.jsp.tagext.TagSupport; | |
import org.apache.pluto.driver.url.PortalURL; | |
import org.apache.pluto.driver.core.PortalRequestContext; | |
/** | |
* The portlet URL tag is used to generate portal URL pointing to the current | |
* portlet with specified portlet mode and window state. | |
* | |
* @author <a href="mailto:ddewolf@apache.org">David H. DeWolf</a> | |
* @author <a href="mailto:zheng@apache.org">ZHENG Zhong</a> | |
* @version 1.0 | |
* @since Oct 4, 2004 | |
*/ | |
public class PortletPortalURLTag extends BodyTagSupport { | |
// Private Member Variables ------------------------------------------------ | |
/** The window state to be encoded in the portal URL. */ | |
private String windowState = null; | |
/** The portlet mode to be encoded in the portal URL. */ | |
private String portletMode = null; | |
// Tag Attribute Accessors ------------------------------------------------- | |
public String getWindowState() { | |
return windowState; | |
} | |
public void setWindowState(String windowState) { | |
this.windowState = windowState; | |
} | |
public String getPortletMode() { | |
return portletMode; | |
} | |
public void setPortletMode(String portletMode) { | |
this.portletMode = portletMode; | |
} | |
// BodyTagSupport Impl ----------------------------------------------------- | |
/** | |
* Creates the portal URL pointing to the current portlet with specified | |
* portlet mode and window state, and print the URL to the page. | |
* @see PortletTag | |
*/ | |
public int doStartTag() throws JspException { | |
// Ensure that the portlet render tag resides within a portlet tag. | |
PortletTag parentTag = (PortletTag) TagSupport.findAncestorWithClass( | |
this, PortletTag.class); | |
if (parentTag == null) { | |
throw new JspException("Portlet window controls may only reside " | |
+ "within a pluto:portlet tag."); | |
} | |
// Create portal URL. | |
HttpServletRequest request = (HttpServletRequest) | |
pageContext.getRequest(); | |
PortalRequestContext ctx = (PortalRequestContext) | |
request.getAttribute(PortalRequestContext.REQUEST_KEY); | |
PortalURL portalUrl = ctx.createPortalURL(); | |
// Encode window state of the current portlet in the portal URL. | |
String portletId = parentTag.getEvaluatedPortletId(); | |
if (windowState != null) { | |
portalUrl.setWindowState(portletId, new WindowState(windowState)); | |
} | |
// Encode portlet mode of the current portlet in the portal URL. | |
if (portletMode != null) { | |
portalUrl.setPortletMode(portletId, new PortletMode(portletMode)); | |
} | |
// Print the portal URL as a string to the page. | |
try { | |
pageContext.getOut().print(portalUrl.toString()); | |
} catch (IOException ex) { | |
throw new JspException(ex); | |
} | |
// Skip the tag body. | |
return SKIP_BODY; | |
} | |
} | |