/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library 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 library 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.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.jsp;
import org.opencms.file.CmsObject;
import org.opencms.flex.CmsFlexController;
import org.opencms.main.CmsLog;
import org.opencms.workplace.CmsWorkplace;
import javax.servlet.ServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import org.apache.commons.logging.Log;
/**
* Implementation of the <code><cms:jquery/></code> tag.<p>
*
* Since OpenCms version 7.0.5, there is a new core module providing JQuery plus some additional plugins.
* This tag will include the JQuery javascript library depending on the current project. If the current
* Project is offline the unpacked version is used, if online the packed version will be used.
*
* @since 7.0.5
*/
public class CmsJspTagJQuery extends BodyTagSupport {
/** File extension constant. */
private static final String EXTENSION_CSS = ".css";
/** File extension constant. */
private static final String EXTENSION_JS = ".js";
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsJspTagJQuery.class);
/** Serial version UID required for safe serialization. */
private static final long serialVersionUID = 3257908962507552558L;
/** VFS path constant. */
private static final String VFS_PATH_CSS = "jquery/css/";
/** VFS path constant. */
private static final String VFS_PATH_JQUERY = "jquery/";
/** VFS path constant. */
private static final String VFS_PATH_LOAD_JS = "jquery/load.js";
/** VFS path constant. */
private static final String VFS_PATH_PACKED = "packed/";
/** VFS path constant. */
private static final String VFS_PATH_UNPACKED = "unpacked/";
/** The optional css file to include. */
protected String m_css;
/** If the inclusion should be dynamic with js or not. */
protected String m_dynamic;
/** The javascript file to include. */
protected String m_js;
/**
* Opens the direct edit tag, if manual mode is set then the next
* start HTML for the direct edit buttons is printed to the page.<p>
*
* @return {@link #EVAL_BODY_INCLUDE}
*
* @throws JspException in case something goes wrong
*/
@Override
public int doStartTag() throws JspException {
ServletRequest req = pageContext.getRequest();
// This will always be true if the page is called through OpenCms
if (!CmsFlexController.isCmsRequest(req)) {
return SKIP_BODY;
}
if (getJs() == null) {
if (isDynamic()) {
// in case we want to include the needed js functions
try {
pageContext.getOut().print(
"<script type='text/javascript' src='"
+ CmsWorkplace.getSkinUri()
+ VFS_PATH_LOAD_JS
+ "' ></script>");
} catch (Exception ex) {
if (LOG.isErrorEnabled()) {
LOG.error(Messages.get().getBundle().key(Messages.ERR_PROCESS_TAG_1, "jquery"), ex);
}
throw new JspException(ex);
}
}
return SKIP_BODY;
}
// get the server prefix
CmsObject cms = CmsFlexController.getCmsObject(req);
// first handle js file
String path = VFS_PATH_JQUERY;
if (cms.getRequestContext().getCurrentProject().isOnlineProject()) {
// online
path += VFS_PATH_PACKED;
} else {
// offline
path += VFS_PATH_UNPACKED;
}
String file = path + getJs() + EXTENSION_JS;
try {
cms.readResource(CmsWorkplace.VFS_PATH_RESOURCES + file);
if (isDynamic()) {
pageContext.getOut().print(
"<script type='text/javascript'>load_script('"
+ CmsWorkplace.getSkinUri()
+ file
+ "', 'js');</script>");
} else {
pageContext.getOut().print(
"<script type='text/javascript' src='" + CmsWorkplace.getSkinUri() + file + "' ></script>");
}
} catch (Exception ex) {
if (LOG.isErrorEnabled()) {
LOG.error(Messages.get().getBundle().key(Messages.ERR_PROCESS_TAG_1, "jquery"), ex);
}
throw new JspException(ex);
}
if (getCss() == null) {
return SKIP_BODY;
}
// now handle css file
path = VFS_PATH_CSS;
file = path + getCss() + EXTENSION_CSS;
try {
cms.readResource(CmsWorkplace.VFS_PATH_RESOURCES + file);
pageContext.getOut().println();
if (isDynamic()) {
pageContext.getOut().print(
"<script type='text/javascript'>load_script('"
+ CmsWorkplace.getSkinUri()
+ file
+ "', 'css');</script>");
} else {
pageContext.getOut().print(
"<link href='" + CmsWorkplace.getSkinUri() + file + "' rel='stylesheet' type='text/css' >");
}
} catch (Exception ex) {
if (LOG.isErrorEnabled()) {
LOG.error(Messages.get().getBundle().key(Messages.ERR_PROCESS_TAG_1, "jquery"), ex);
}
throw new JspException(ex);
}
return SKIP_BODY;
}
/**
* Returns the optional css file to include.<p>
*
* @return the optional css file to include
*/
public String getCss() {
return m_css;
}
/**
* Returns the dynamic flag.<p>
*
* @return the dynamic flag
*/
public String getDynamic() {
return m_dynamic;
}
/**
* Returns the javascript file to include.<p>
*
* @return the javascript file
*/
public String getJs() {
return m_js;
}
/**
* Releases any resources we may have (or inherit).<p>
*/
@Override
public void release() {
super.release();
m_js = null;
m_css = null;
}
/**
* Sets the optional css file to include.<p>
*
* @param css the css file to set
*/
public void setCss(String css) {
m_css = css;
}
/**
* Sets the dynamic flag.<p>
*
* @param dynamic the dynamic flag to set
*/
public void setDynamic(String dynamic) {
m_dynamic = dynamic;
}
/**
* Sets the javascript file to include.<p>
*
* @param js the javascript file to set
*/
public void setJs(String js) {
if (js != null) {
m_js = js;
}
}
/**
* Checks if the inclusion is dynamic or not.<p>
*
* @return <code>true</code> if the inclusion is dynamic
*/
private boolean isDynamic() {
return Boolean.valueOf(getDynamic()).booleanValue();
}
}