/**
* Copyright (C) 2001 Yasna.com. All rights reserved.
*
* ===================================================================
* The Apache Software License, Version 1.1
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* Yasna.com (http://www.yasna.com)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Yazd" and "Yasna.com" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact yazd@yasna.com.
*
* 5. Products derived from this software may not be called "Yazd",
* nor may "Yazd" appear in their name, without prior written
* permission of Yasna.com.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL YASNA.COM OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of Yasna.com. For more information
* on Yasna.com, please see <http://www.yasna.com>.
*/
package com.Yasna.forum.tags;
import javax.servlet.jsp.tagext.*;
import com.Yasna.forum.*;
import javax.servlet.jsp.*;
/**
* Jsp tag must be nested in Message tag. Evaluates its body if current message
* is approved. Tag body is evaluated also if message is not approved but tag
* parameter value set to "false".
*/
public class IsApprovedTag extends TagSupport {
private boolean value = true;
private boolean attrSet = false;
public int doStartTag() throws JspException {
if (!attrSet) {
value = true;
}
attrSet = false;
try {
MessageTag mt = getMessageTag();
if (mt.isApproved() == value) {
return EVAL_BODY_INCLUDE;
}
} catch(Exception e) {
}
return SKIP_BODY;
}
/**
* Gets MessageTag object which represents the parent Message tag.
* @return MessageTag object
*/
private MessageTag getMessageTag() {
MessageTag mt = null;
try {
mt = (MessageTag)this.findAncestorWithClass(this,
Class.forName("com.Yasna.forum.tags.MessageTag"));
} catch(Exception e) {
}
return mt;
}
/**
* Set the tag parameter to a certain value.
* @param v String representation of the parameter value.
*/
public void setValue(String v) {
attrSet = true;
value = true;
if ("false".equals(v)) value = false;
}
}
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