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JSF components and utilities that can be used with any JSF implementation.
This library is compatible with both JSF1.1 and JSF1.2; however for JSF1.2 users there
is an alternative build of Tomahawk available that takes advantage of JSF1.2 features to
offer some additional benefits.
/*
* 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.custom.layout;
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.HtmlRenderer;
import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRendererUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
/**
* @JSFRenderer
* renderKitId = "HTML_BASIC"
* family = "javax.faces.Panel"
* type = "org.apache.myfaces.Layout"
*
* @author Manfred Geiler (latest modification by $Author: lu4242 $)
* @version $Revision: 659874 $ $Date: 2008-05-24 15:59:15 -0500 (Sat, 24 May 2008) $
*/
public class HtmlLayoutRenderer
extends HtmlRenderer
{
private static final Log log = LogFactory.getLog(HtmlLayoutRenderer.class);
public static final String CLASSIC_LAYOUT = "classic";
public static final String NAV_RIGHT_LAYOUT = "navigationRight";
public static final String UPSIDE_DOWN_LAYOUT = "upsideDown";
public boolean getRendersChildren()
{
return true;
}
public void encodeBegin(FacesContext context, UIComponent component) throws IOException
{
}
public void encodeChildren(FacesContext context, UIComponent component) throws IOException
{
}
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException
{
RendererUtils.checkParamValidity(facesContext, component, HtmlPanelLayout.class);
HtmlPanelLayout panelLayout = (HtmlPanelLayout)component;
String layout = panelLayout.getLayout();
if (layout == null || layout.equals(CLASSIC_LAYOUT))
{
renderClassic(facesContext, panelLayout);
}
else if (layout.equals(NAV_RIGHT_LAYOUT))
{
renderNavRight(facesContext, panelLayout);
}
else if (layout.equals(UPSIDE_DOWN_LAYOUT))
{
renderUpsideDown(facesContext, panelLayout);
}
else
{
log.error("Unknown panel layout '" + layout + "'!");
}
if (panelLayout.getChildCount() > 0)
{
log.error("PanelLayout must not have children, only facets allowed!");
}
}
protected void renderClassic(FacesContext facesContext, HtmlPanelLayout panelLayout)
throws IOException
{
ResponseWriter writer = facesContext.getResponseWriter();
UIComponent header = panelLayout.getHeader();
UIComponent navigation = panelLayout.getNavigation();
UIComponent body = panelLayout.getBody();
UIComponent footer = panelLayout.getFooter();
writer.startElement(HTML.TABLE_ELEM, panelLayout);
HtmlRendererUtils.renderHTMLAttributes(writer, panelLayout, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
if (header != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, header,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getHeaderClass(),
panelLayout.getHeaderStyle());
writer.endElement(HTML.TR_ELEM);
}
if (navigation != null || body != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
if (navigation != null)
{
renderTableCell(facesContext, writer, navigation, 0,
panelLayout.getNavigationClass(),
panelLayout.getNavigationStyle());
}
if (body != null)
{
renderTableCell(facesContext, writer, body, 0,
panelLayout.getBodyClass(),
panelLayout.getBodyStyle());
}
writer.endElement(HTML.TR_ELEM);
}
if (footer != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, footer,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getFooterClass(),
panelLayout.getFooterStyle());
writer.endElement(HTML.TR_ELEM);
}
writer.endElement(HTML.TABLE_ELEM);
}
protected void renderNavRight(FacesContext facesContext, HtmlPanelLayout panelLayout)
throws IOException
{
ResponseWriter writer = facesContext.getResponseWriter();
UIComponent header = panelLayout.getHeader();
UIComponent navigation = panelLayout.getNavigation();
UIComponent body = panelLayout.getBody();
UIComponent footer = panelLayout.getFooter();
writer.startElement(HTML.TABLE_ELEM, panelLayout);
HtmlRendererUtils.renderHTMLAttributes(writer, panelLayout, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
if (header != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, header,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getHeaderClass(),
panelLayout.getHeaderStyle());
writer.endElement(HTML.TR_ELEM);
}
if (navigation != null || body != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
if (body != null)
{
renderTableCell(facesContext, writer, body, 0,
panelLayout.getBodyClass(),
panelLayout.getBodyStyle());
}
if (navigation != null)
{
renderTableCell(facesContext, writer, navigation, 0,
panelLayout.getNavigationClass(),
panelLayout.getNavigationStyle());
}
writer.endElement(HTML.TR_ELEM);
}
if (footer != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, footer,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getFooterClass(),
panelLayout.getFooterStyle());
writer.endElement(HTML.TR_ELEM);
}
writer.endElement(HTML.TABLE_ELEM);
}
protected void renderUpsideDown(FacesContext facesContext, HtmlPanelLayout panelLayout)
throws IOException
{
ResponseWriter writer = facesContext.getResponseWriter();
UIComponent header = panelLayout.getHeader();
UIComponent navigation = panelLayout.getNavigation();
UIComponent body = panelLayout.getBody();
UIComponent footer = panelLayout.getFooter();
writer.startElement(HTML.TABLE_ELEM, panelLayout);
HtmlRendererUtils.renderHTMLAttributes(writer, panelLayout, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
if (footer != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, footer,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getFooterClass(),
panelLayout.getFooterStyle());
writer.endElement(HTML.TR_ELEM);
}
if (navigation != null || body != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
if (navigation != null)
{
renderTableCell(facesContext, writer, navigation, 0,
panelLayout.getNavigationClass(),
panelLayout.getNavigationStyle());
}
if (body != null)
{
renderTableCell(facesContext, writer, body, 0,
panelLayout.getBodyClass(),
panelLayout.getBodyStyle());
}
writer.endElement(HTML.TR_ELEM);
}
if (header != null)
{
writer.startElement(HTML.TR_ELEM, panelLayout);
renderTableCell(facesContext, writer, header,
(navigation != null && body != null) ? 2 : 1,
panelLayout.getHeaderClass(),
panelLayout.getHeaderStyle());
writer.endElement(HTML.TR_ELEM);
}
writer.endElement(HTML.TABLE_ELEM);
}
protected void renderTableCell(FacesContext facesContext,
ResponseWriter writer,
UIComponent component,
int colspan,
String styleClass,
String style)
throws IOException
{
writer.startElement(HTML.TD_ELEM, component);
if (colspan > 0)
{
writer.writeAttribute(HTML.COLSPAN_ATTR, Integer.toString(colspan), null);
}
if (styleClass != null)
{
writer.writeAttribute(HTML.CLASS_ATTR, styleClass, null);
}
if (style != null)
{
writer.writeAttribute(HTML.STYLE_ATTR, style, null);
}
RendererUtils.renderChild(facesContext, component);
writer.endElement(HTML.TD_ELEM);
}
}