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JSF components and utilities that can be used with any JSF implementation.
This library is based on the JSF1.1 version of Tomahawk, but with minor source code and build
changes to take advantage of JSF1.2 features. A JSF1.2 implementation is required to use this
version of the Tomahawk library.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.renderkit.html.ext;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.application.FacesMessage;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIColumn;
import javax.faces.component.UIComponent;
import javax.faces.component.ValueHolder;
import javax.faces.component.html.HtmlOutputLabel;
import javax.faces.component.html.HtmlOutputText;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.component.html.ext.HtmlMessage;
import org.apache.myfaces.component.html.ext.HtmlMessages;
import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
import org.apache.myfaces.shared_tomahawk.renderkit.html.HTML;
import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlMessageRendererBase;
/**
* @JSFRenderer
* renderKitId = "HTML_BASIC"
* family = "javax.faces.Message"
* type = "org.apache.myfaces.Message"
*
* @author Manfred Geiler (latest modification by $Author: lu4242 $)
* @version $Revision: 712242 $ $Date: 2008-11-07 14:53:02 -0500 (Fri, 07 Nov 2008) $
*/
public class HtmlMessageRenderer
extends HtmlMessageRendererBase
{
private static final Log log = LogFactory.getLog(HtmlMessageRenderer.class);
private static final String OUTPUT_LABEL_MAP = HtmlMessageRenderer.class.getName() + ".OUTPUT_LABEL_MAP";
public void encodeEnd(FacesContext facesContext, UIComponent component)
throws IOException
{
super.encodeEnd(facesContext, component); //check for NP
renderMessage(facesContext, component);
if (component instanceof HtmlMessage
&& ((HtmlMessage)component).getForceSpan())
{
String forAttr = getFor(component);
HtmlMessage htmlMessage = (HtmlMessage) component;
UIComponent forComponent = component.findComponent(forAttr);
if (forComponent != null)
{
String forCompclientId = forComponent.getClientId(facesContext);
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(HTML.SPAN_ELEM, null);
writer.writeAttribute(HTML.ID_ATTR, forCompclientId + "_msgFor", null);
if(htmlMessage.getStyleClass()!=null)
writer.writeAttribute(HTML.CLASS_ATTR,htmlMessage.getStyleClass(),null);
if(htmlMessage.getStyle()!=null)
writer.writeAttribute(HTML.STYLE_ATTR,htmlMessage.getStyle(),null);
writer.endElement(HTML.SPAN_ELEM);
}
}
}
protected String getSummary(FacesContext facesContext,
UIComponent message,
FacesMessage facesMessage,
String msgClientId)
{
String msgSummary = facesMessage.getSummary();
if (msgSummary == null) return null;
String inputLabel = null;
if (msgClientId != null) inputLabel = findInputLabel(facesContext, msgClientId);
if (inputLabel == null) inputLabel = "";
if(((message instanceof HtmlMessages && ((HtmlMessages) message).isReplaceIdWithLabel()) ||
(message instanceof HtmlMessage && ((HtmlMessage) message).isReplaceIdWithLabel()))&&
inputLabel.length()!=0)
msgSummary = msgSummary.replaceAll(findInputId(facesContext, msgClientId),inputLabel);
String summaryFormat;
if (message instanceof HtmlMessage)
{
summaryFormat = ((HtmlMessage)message).getSummaryFormat();
}
else
{
summaryFormat = (String)message.getAttributes().get("summaryFormat");
}
if (summaryFormat == null) return msgSummary;
MessageFormat format = new MessageFormat(summaryFormat, facesContext.getViewRoot().getLocale());
return format.format(new Object[] {msgSummary, inputLabel});
}
protected String getDetail(FacesContext facesContext,
UIComponent message,
FacesMessage facesMessage,
String msgClientId)
{
String msgDetail = facesMessage.getDetail();
if (msgDetail == null) return null;
String inputLabel = null;
if (msgClientId != null) inputLabel = findInputLabel(facesContext, msgClientId);
if (inputLabel == null) inputLabel = "";
if(((message instanceof HtmlMessages && ((HtmlMessages) message).isReplaceIdWithLabel()) ||
(message instanceof HtmlMessage && ((HtmlMessage) message).isReplaceIdWithLabel()))&&
inputLabel.length()!=0)
msgDetail = msgDetail.replaceAll(findInputId(facesContext, msgClientId),inputLabel);
String detailFormat;
if (message instanceof HtmlMessage)
{
detailFormat = ((HtmlMessage)message).getDetailFormat();
}
else
{
detailFormat = (String)message.getAttributes().get("detailFormat");
}
if (detailFormat == null) return msgDetail;
MessageFormat format = new MessageFormat(detailFormat, facesContext.getViewRoot().getLocale());
return format.format(new Object[] {msgDetail, inputLabel});
}
public static String findInputLabel(FacesContext facesContext, String inputClientId)
{
Map outputLabelMap = getOutputLabelMap(facesContext);
MessageLabelInfo info = ((MessageLabelInfo)outputLabelMap.get(inputClientId));
if(info == null)
{
UIComponent comp = facesContext.getViewRoot().findComponent(inputClientId);
UIComponent parent=comp;
while(parent != null && !((parent=parent.getParent())instanceof UIColumn));
if(parent != null)
{
UIColumn column = (UIColumn) parent;
if(column.getHeader()!=null)
{
UIComponent header = column.getHeader();
return getComponentText(facesContext, header);
}
}
}
return info==null?null:info.getText();
}
public static String findInputId(FacesContext facesContext, String inputClientId)
{
Map outputLabelMap = getOutputLabelMap(facesContext);
MessageLabelInfo info = ((MessageLabelInfo)outputLabelMap.get(inputClientId));
UIComponent comp = null;
if(info == null)
{
comp = facesContext.getViewRoot().findComponent(inputClientId);
}
else
{
comp = info.getForComponent();
}
if ( comp == null ) return null;
if ( inputClientId.contains(NamingContainer.SEPARATOR_CHAR + "") ) {
// Full client id is being used
//
return comp.getClientId(facesContext);
}
else {
// Id is being used (or client id is one level deep, which means it doesn't matter)
//
return comp.getId();
}
}
/**
* @param facesContext
* @return a Map that reversely maps clientIds of components to their
* corresponding OutputLabel component
*/
private static Map getOutputLabelMap(FacesContext facesContext)
{
Map map = (Map)facesContext.getExternalContext().getRequestMap().get(OUTPUT_LABEL_MAP);
if (map == null)
{
map = new HashMap();
createOutputLabelMap(facesContext, facesContext.getViewRoot(), map);
facesContext.getExternalContext().getRequestMap().put(OUTPUT_LABEL_MAP, map);
}
return map;
}
private static void createOutputLabelMap(FacesContext facesContext,
UIComponent root,
Map map)
{
for (Iterator it = root.getFacetsAndChildren(); it.hasNext(); )
{
UIComponent child = (UIComponent)it.next();
if (child instanceof HtmlOutputLabel)
{
String forAttr = ((HtmlOutputLabel)child).getFor();
if (forAttr != null)
{
UIComponent input = child.findComponent(forAttr);
if (input == null)
{
log.warn("Unable to find component '" + forAttr + "' (calling findComponent on component '" + child.getClientId(facesContext) + "')");
}
else
{
map.put(input.getClientId(facesContext),
new MessageLabelInfo(
input,getComponentText(facesContext, (HtmlOutputLabel)child)));
}
}
}
else
{
createOutputLabelMap(facesContext, child, map);
}
}
}
private static String getComponentText(FacesContext facesContext, UIComponent component)
{
String text = null;
if(component instanceof ValueHolder)
{
text= RendererUtils.getStringValue(facesContext, component);
}
if (text == null || text.length() < 1)
{
StringBuffer buf = new StringBuffer();
List li = component.getChildren();
for (int i = 0; i < li.size(); i++)
{
UIComponent child = (UIComponent) li.get(i);
if(child instanceof HtmlOutputText)
{
String str = RendererUtils.getStringValue(facesContext, child);
if(str!=null)
buf.append(str);
}
}
text = buf.toString();
}
return text;
}
public static class MessageLabelInfo
{
private UIComponent _forComponent;
private String _text;
public MessageLabelInfo(UIComponent forComponent, String text)
{
_forComponent = forComponent;
_text = text;
}
public UIComponent getForComponent()
{
return _forComponent;
}
public void setForComponent(UIComponent forComponent)
{
_forComponent = forComponent;
}
public String getText()
{
return _text;
}
public void setText(String text)
{
_text = text;
}
}
}