ajaxtreetag.java

这是AJAX的一个HTML实现！ HTML标签AJAX的实现！

/**
 * Copyright 2005 Darren L. Spurgeon
 * Copyright 2007-2008 Jens Kapitza
 * 
 * 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 net.sourceforge.ajaxtags.tags;

import javax.servlet.jsp.JspException;

/**
 * Tag handler for the tree AJAX tag.
 * 
 * @author Musachy Barroso
 * @author Jens Kapitza
 * @version $Revision$ $Date: 2007/06/20 20:55:56 $ $Author: jenskapitza $
 */
public class AjaxTreeTag extends BaseAjaxBodyTag {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    private String collapsedClass;

    private String expandedClass;

    private String nodeClass;

    private String treeClass;

    public String getTreeClass() {
	return treeClass;
    }

    public void setTreeClass(String treeClass) {
	this.treeClass = treeClass;
    }

    public String getNodeClass() {
	return nodeClass;
    }

    public void setNodeClass(String nodeClass) {
	this.nodeClass = nodeClass;
    }
 

    public String getCollapsedClass() {
	return collapsedClass;
    }

    public void setCollapsedClass(String collapsedClass) {
	this.collapsedClass = collapsedClass;
    }

    public String getExpandedClass() {
	return expandedClass;
    }

    public void setExpandedClass(String expandedClass) {
	this.expandedClass = expandedClass;
    }

    @Override
    protected boolean skipBody() {
	return true;
    }

    @Override
    public int doEndTag() throws JspException {
	OptionsBuilder options = getOptionsBuilder();
	options.add("target", getId(), true);

	options.add("collapsedClass", this.collapsedClass, true);
	options.add("expandedClass", this.expandedClass, true);
	options.add("treeClass", this.treeClass, true);
	options.add("nodeClass", this.nodeClass, true);

	StringBuffer script = new StringBuffer();
	script.append("<div id=\"");
	script.append(this.getId());
	script.append("\"></div>\n");
	script.append("<script type=\"text/javascript\">\n");

	script.append("new AjaxJspTag.Tree({\n")
		.append(options.toString()).append("});\n").append(
			"</script>\n\n");

	out(script);
	return EVAL_PAGE;
    }

    @Override
    protected void releaseTag() {
	collapsedClass = null;
	expandedClass = null;
	nodeClass = null;
	treeClass = null;
    }
}