/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*
* $Header:$
*/
package org.apache.beehive.netui.tags.javascript;
import org.apache.beehive.netui.tags.AbstractClassicTag;
import org.apache.beehive.netui.tags.rendering.ScriptTag;
import org.apache.beehive.netui.tags.rendering.TagRenderingBase;
import org.apache.beehive.netui.tags.rendering.WriteRenderAppender;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
/**
* ScriptHeader will write the <script> and JavaScript includes into the HTML
* <head> tag. It can also be used to write the <script> and JavaScript
* includes in the body given a JSP fragment that uses the {@link ScriptContainer}.
* @jsptagref.tagdescription ScriptHeader will write the <script> and JavaScript
* includes into the HTML <head> tag. It can also be used to write the
* <script> and JavaScript includes in the body given a JSP fragment that
* uses the {@link ScriptContainer}.
*
* <p>This tag is required to be empty. It is also required when using the
* <netui:tree> element with the attribute runAtClient="true".
*
* <p>The <scriptHeader> tag should have a parent <netui:html> or
* <netui:scriptContainer> tag.
*
* @example In this example the <netui:scriptHeader/> tag has a parent
* <netui:html> tag.
* <pre> <netui:html>
* <head>
* <title>Page Title</title>
* <netui:scriptHeader/>
* </head>
* <netui:body>
* ...
* </pre>
*
* <p>In this example the <netui:scriptHeader/> tag is enclosed in the
* <netui:scriptContainer> tag.
* <pre> <netui:body>
* <netui:scriptContainer>
* <netui:scriptHeader/>
* <netui:tree runAtClient="true"
* dataSource="pageFlow.root"
* selectionAction="postback"
* tagId="testTree"/>
* ...
* </netui:scriptContainer>
* </netui:body></pre>
* @netui:tag name="scriptHeader" body-content="empty"
* description="ScriptHeader will write the <script> and JavaScript includes."
*/
public class ScriptHeader extends AbstractClassicTag
{
/**
* Returns the name of the Tag.
*/
public String getTagName()
{
return "ScriptHeader";
}
/**
* Process the start of the Button.
* @throws javax.servlet.jsp.JspException if a JSP exception has occurred
*/
public int doStartTag() throws JspException
{
IScriptReporter sr = getScriptReporter();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
WriteRenderAppender writer = new WriteRenderAppender(pageContext);
// write out the include
ScriptTag.State state = new ScriptTag.State();
TagRenderingBase br = TagRenderingBase.Factory.getRendering(TagRenderingBase.SCRIPT_TAG, pageContext.getRequest());
state.src = req.getContextPath() + "/resources/beehive/version1/javascript/netui-tree.js";
br.doStartTag(writer, state);
br.doEndTag(writer);
// write out the dynamic content
ScriptRequestState srs = ScriptRequestState.getScriptRequestState(req);
srs.writeFeature(sr, writer, CoreScriptFeature.DYNAMIC_INIT, true, false, new Object[]{req.getContextPath()});
return EVAL_BODY_INCLUDE;
}
public int doEndTag()
throws JspException
{
localRelease();
return EVAL_PAGE;
}
protected void localRelease()
{
super.localRelease();
}
}