/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.gui.legacy.taglib.display;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.Tag;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.taglibs.standard.tag.common.core.NullAttributeException;
import org.apache.taglibs.standard.tag.el.core.ExpressionUtil;
/**
* This class is a ColumnDecorator tag that that
* creates either the name of someone that acknowledged the event
* or a message with an onclick() handler on it.
*
* @author Heiko W. Rupp
*/
public class UserAckDecorator extends ColumnDecorator implements Tag {
private static Log log = LogFactory.getLog(UserAckDecorator.class);
/**
* The class property of the checkbox.
*/
private String styleClass = null;
/**
* The onClick attribute of the checkbox.
*/
private String onclick = null;
/**
* The id of the div we want to insert
*/
private String id = null;
// ctors
public UserAckDecorator() {
styleClass = "listMember";
onclick = "";
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getStyleClass() {
return this.styleClass;
}
public void setStyleClass(String c) {
this.styleClass = c;
}
public String getOnclick() {
return this.onclick;
}
public void setOnclick(String o) {
this.onclick = o;
}
@Override
public String decorate(Object obj) {
String click = "";
try {
value = (String) evalAttr("value", this.value, String.class);
} catch (NullAttributeException ne) {
log.debug("bean " + this.value + " not found");
return "";
} catch (JspException je) {
log.debug("can't evaluate value [" + this.value + "]: ", je);
return "";
}
try {
click = (String) evalAttr("onclick", this.getOnclick(), String.class);
} catch (NullAttributeException e) {
// Onclick is empty
} catch (JspException e) {
// Onclick is empty
}
ColumnTag ct = getColumnTag();
if (id != null) {
if (id.contains("_property:")) {
id = ct.replacePropertyIfPossible(id, context);
}
}
if (click != null) {
click = ct.replacePropertyIfPossible(click, context);
}
boolean ackDone;
if ("".equals(obj))
ackDone = false;
else
ackDone = true;
StringBuffer buf = new StringBuffer();
buf.append("<div");
if (id != null)
buf.append(" id=" + id);
if (!ackDone) {
buf.append(" onclick=\"");
buf.append(click);
buf.append("\"");
}
if (getStyleClass() != null) {
buf.append(" class=\"");
buf.append(getStyleClass());
buf.append("\"");
}
// change cursor when hovering over the link
// onmouseout, onmouseover
buf.append(" style=\"cursor:pointer;\"");
buf.append("\">");
if (ackDone) {
buf.append(obj.toString());
} else
buf.append("<u>Click to Acknowledge!</u>");
buf.append("</div>");
return buf.toString();
}
public int doStartTag() throws javax.servlet.jsp.JspException {
ColumnTag ancestorTag = (ColumnTag) TagSupport.findAncestorWithClass(this, ColumnTag.class);
if (ancestorTag == null) {
throw new JspTagException("A UserAckDecorator must be used within a ColumnTag.");
}
ancestorTag.setDecorator(this);
return SKIP_BODY;
}
public int doEndTag() {
return EVAL_PAGE;
}
// the JSP tag interface for this decorator
Tag parent;
PageContext context;
/**
* Holds value of property value.
*/
private String value;
public Tag getParent() {
return parent;
}
public void setParent(Tag t) {
this.parent = t;
}
@Override
public void setPageContext(PageContext pc) {
this.context = pc;
}
@Override
public void release() {
styleClass = null;
onclick = null;
parent = null;
context = null;
}
private Object evalAttr(String name, String val, Class<String> type) throws JspException, NullAttributeException {
return ExpressionUtil.evalNotNull("userackdecorator", name, val, type, this, context);
}
/**
* Getter for property value.
*
* @return Value of property value.
*/
public String getValue() {
return this.value;
}
/**
* Setter for property value.
*
* @param value New value of property value.
*/
public void setValue(String value) {
this.value = value;
}
}