001/*
002 * Copyright 2008 The Kuali Foundation
003 * 
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * 
008 * http://www.opensource.org/licenses/ecl2.php
009 * 
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.ole.sys.document.web.renderers;
017
018import java.io.IOException;
019
020import javax.servlet.jsp.JspException;
021import javax.servlet.jsp.JspWriter;
022import javax.servlet.jsp.PageContext;
023import javax.servlet.jsp.tagext.Tag;
024
025import org.apache.commons.lang.StringUtils;
026import org.apache.struts.taglib.html.HiddenTag;
027import org.springframework.web.util.HtmlUtils;
028
029/**
030 * Renders the dynamic label portion of a field
031 */
032public class DynamicNameLabelRenderer implements Renderer {
033    private String fieldName = null;
034    private String fieldValue = null;
035    private HiddenTag valuePersistingTag = new HiddenTag();
036    
037    /**
038     * @see org.kuali.ole.sys.document.web.renderers.Renderer#clear()
039     */
040    public void clear() {
041        fieldName = null;
042        fieldValue = null;
043        
044        valuePersistingTag.setPageContext(null);
045        valuePersistingTag.setParent(null);
046        valuePersistingTag.setProperty(null);
047        valuePersistingTag.setValue(null);
048    }
049
050    /**
051     * 
052     * @see org.kuali.ole.sys.document.web.renderers.Renderer#render(javax.servlet.jsp.PageContext, javax.servlet.jsp.tagext.Tag, org.kuali.rice.krad.bo.BusinessObject)
053     */
054    public void render(PageContext pageContext, Tag parentTag) throws JspException {
055        JspWriter out = pageContext.getOut();
056        try {
057            out.write("<br />");
058            out.write("<div id=\""+fieldName+".div\" class=\"fineprint\">");
059            if (!StringUtils.isBlank(fieldValue)) {
060                out.write(fieldValue);
061            }
062            out.write("</div>");
063            
064            if (!StringUtils.isBlank(fieldValue)) {
065                renderValuePersistingTag(pageContext, parentTag);
066            }
067        }
068        catch (IOException ioe) {
069            throw new JspException("Difficulty rendering a dynamic field label", ioe);
070        }
071    }
072    
073    /**
074     * If the value is present, renders that value in a tag
075     * @param pageContext the page context to render to
076     * @param parentTag the tag requesting all this rendering
077     */
078    protected void renderValuePersistingTag(PageContext pageContext, Tag parentTag) throws JspException {
079        valuePersistingTag.setPageContext(pageContext);
080        valuePersistingTag.setParent(parentTag);
081        valuePersistingTag.setProperty(fieldName);
082        valuePersistingTag.setValue(fieldValue);
083        
084        valuePersistingTag.doStartTag();
085        valuePersistingTag.doEndTag();
086    }
087
088    /**
089     * Gets the fieldName attribute. 
090     * @return Returns the fieldName.
091     */
092    public String getFieldName() {
093        return fieldName;
094    }
095
096    /**
097     * Sets the fieldName attribute value.
098     * @param fieldName The fieldName to set.
099     */
100    public void setFieldName(String fieldName) {
101        this.fieldName = fieldName;
102    }
103
104    /**
105     * Gets the fieldValue attribute. 
106     * @return Returns the fieldValue.
107     */
108    public String getFieldValue() {
109        return fieldValue;
110    }
111
112    /**
113     * Sets the fieldValue attribute value.
114     * @param fieldValue The fieldValue to set.
115     */
116    public void setFieldValue(String fieldValue) {
117        this.fieldValue = fieldValue;
118    }
119}