package com.sun.j2ee.blueprints.waf.view.taglibs.smart;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.BodyContent;
import java.io.IOException;
import java.util.*;
public class FormTag extends BodyTagSupport {
Map validatedFields = new TreeMap();
String name;
String action;
String method;
String formHTML;
public void putValidatedField(String fieldName, String fieldType) {
validatedFields.put(fieldName, fieldType);
}
public void setName(String n) { name = n; }
public void setAction(String a) { action = a; }
public void setMethod(String m) { method = m; }
public int doStartTag() throws JspTagException {
return EVAL_BODY_BUFFERED;
}
public int doAfterBody() throws JspTagException {
BodyContent bc = getBodyContent();
formHTML = bc.getString();
bc.clearBody();
return SKIP_BODY;
}
public int doEndTag() throws JspTagException {
try {
StringBuffer html = new StringBuffer();
StringBuffer javaScript = new StringBuffer();
javaScript.append("<script language=\"JavaScript\">\n");
javaScript.append("function validate_" + name +"() {\n");
javaScript.append(" var ret = true;\n");
for (Iterator it = validatedFields.keySet().iterator();
it.hasNext(); ) {
String fieldName = (String) it.next();
String fieldType = (String) validatedFields.get(fieldName);
javaScript.append(" if (window.document.");
javaScript.append(name + ".");
javaScript.append(fieldName + ".");
javaScript.append("value");
javaScript.append(" ==");
javaScript.append(" \"\"");
javaScript.append(") {\n");
javaScript.append(" alert(\"" + fieldName
+ " is empty.\");\n");
javaScript.append(" ret = false;\n");
javaScript.append(" }\n");
}
javaScript.append(" return ret;\n");
javaScript.append("}\n");
javaScript.append("</script>\n");
html.append("<form");
html.append(" name=\"" + name +"\"");
html.append(" action=\"" + action + "\"");
html.append(" method=\"" + method + "\"");
html.append(" onSubmit=\"return validate_" + name + "();\"");
html.append(">\n");
html.append(formHTML);
html.append("</form>");
pageContext.getOut().print(javaScript.toString());
pageContext.getOut().print(html.toString());
return EVAL_PAGE;
}
catch (IOException e) {
throw new JspTagException("FormTag: " + e.getMessage());
}
finally {
validatedFields = null;
validatedFields = new TreeMap();
name=null;
action=null;
method=null;
formHTML=null;
}
}
}