/*
* 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.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.taglibs.standard.tag.common.core.NullAttributeException;
/**
* The ImageButtonDecorator is nice for when the images are submitting a form from within a table but when the table is
* populated with links that are orthogonal to the form's purpose and link to another set of functionality, this
* decorator is the ticket.
*/
public class ImageLinkDecorator extends BaseDecorator {
private static Log log = LogFactory.getLog(ImageLinkDecorator.class.getName());
private static final String DEFAULT_BORDER = "0";
private static final String TAG = "imagelinkdecorator";
// tag attrs
private String href_el;
private String src_el;
private String border_el;
private String id_el;
// attrs are optional
private boolean borderIsSet = false;
private boolean idIsSet = false;
private boolean hrefIsSet = false;
// values post evaluation by el engine
private String href_val;
private String src_val;
private String border_val;
private String id_val;
/* (non-Javadoc)
* @see org.rhq.enterprise.gui.legacy.taglib.display.ColumnDecorator#decorate(java.lang.Object)
*/
public String decorate(Object columnValue) {
String contextPath = ((HttpServletRequest) getPageContext().getRequest()).getContextPath();
StringBuffer error = new StringBuffer();
if (hrefIsSet) {
try {
setHrefVal(contextPath + (String) evalAttr("href", getHref(), String.class));
} catch (NullAttributeException e) {
error.append(generateErrorComment(e.getClass().getName(), "href_el", getHref(), e));
} catch (JspException e) {
error.append(generateErrorComment(e.getClass().getName(), "href_el", getHref(), e));
}
}
try {
setSrcVal(contextPath + (String) evalAttr("src", getSrc(), String.class));
} catch (NullAttributeException e) {
error.append(generateErrorComment(e.getClass().getName(), "src_el", getSrc(), e));
} catch (JspException e) {
error.append(generateErrorComment(e.getClass().getName(), "src_el", getSrc(), e));
}
if (borderIsSet) {
try {
setBorderVal((String) evalAttr("border", getBorder(), String.class));
} catch (NullAttributeException e) {
error.append(generateErrorComment(e.getClass().getName(), "border_el", getBorder(), e));
} catch (JspException e) {
error.append(generateErrorComment(e.getClass().getName(), "border_el", getBorder(), e));
}
} else {
setBorderVal(DEFAULT_BORDER);
}
if (idIsSet) {
try {
setIdVal((String) evalAttr("id", getId(), String.class));
} catch (NullAttributeException e) {
error.append(generateErrorComment(e.getClass().getName(), "id_el", getId(), e));
} catch (JspException e) {
error.append(generateErrorComment(e.getClass().getName(), "id_el", getId(), e));
}
}
if (error.length() > 0) {
return error.toString();
}
return generateOutput();
}
public void release() {
super.release();
href_el = null;
src_el = null;
border_el = null;
id_el = null;
href_val = null;
src_val = null;
border_val = null;
id_val = null;
borderIsSet = false;
idIsSet = false;
hrefIsSet = false;
}
private String generateOutput() {
StringBuffer sb = new StringBuffer();
if (hrefIsSet) {
sb.append("<a ");
if (idIsSet) {
sb.append("id=\"");
sb.append(getIdVal());
sb.append("\" ");
}
sb.append("href=\"").append(getHrefVal()).append("\">");
}
sb.append("<img src=\"");
sb.append(getSrcVal()).append("\" border=\"");
sb.append(getBorderVal()).append("\">");
if (hrefIsSet) {
sb.append("</a>");
}
return sb.toString();
}
/**
* Returns the border_el.
*
* @return String
*/
public String getBorder() {
return border_el;
}
/**
* Returns the href_el.
*
* @return String
*/
public String getHref() {
return href_el;
}
/**
* Returns the src_el.
*
* @return String
*/
public String getSrc() {
return src_el;
}
/**
* Sets the border_el.
*
* @param border_el The border_el to set
*/
public void setBorder(String border_el) {
borderIsSet = true;
this.border_el = border_el;
}
/**
* Sets the href_el.
*
* @param href_el The href_el to set
*/
public void setHref(String href_el) {
hrefIsSet = true;
this.href_el = href_el;
}
/**
* Sets the src_el.
*
* @param src_el The src_el to set
*/
public void setSrc(String src_el) {
this.src_el = src_el;
}
/**
* Returns the border_val.
*
* @return String
*/
private String getBorderVal() {
return border_val;
}
/**
* Returns the href_val.
*
* @return String
*/
private String getHrefVal() {
return href_val;
}
/**
* Returns the src_val.
*
* @return String
*/
private String getSrcVal() {
return src_val;
}
/**
* Sets the border_val.
*
* @param border_val The border_val to set
*/
private void setBorderVal(String border_val) {
this.border_val = border_val;
}
/**
* Sets the href_val.
*
* @param href_val The href_val to set
*/
private void setHrefVal(String href_val) {
this.href_val = href_val;
}
/**
* Sets the src_val.
*
* @param src_val The src_val to set
*/
private void setSrcVal(String src_val) {
this.src_val = src_val;
}
/**
* Returns the id_el.
*
* @return String
*/
public String getId() {
return id_el;
}
/**
* Returns the id_val.
*
* @return String
*/
public String getIdVal() {
return id_val;
}
/**
* Sets the id_el.
*
* @param id_el The id_el to set
*/
public void setId(String id_el) {
idIsSet = true;
this.id_el = id_el;
}
/**
* Sets the id_val.
*
* @param id_val The id_val to set
*/
public void setIdVal(String id_val) {
this.id_val = id_val;
}
}