org.apache.myfaces.renderkit.html.ext.HtmlDetailStampRowRenderer Maven / Gradle / Ivy

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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 JSF2.0 features. A JSF2.0 implementation is required to use this version of the Tomahawk library.
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/*
 * 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.util.Iterator;

import javax.faces.component.UIComponent;
import javax.faces.component.UIData;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.Renderer;

import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFRenderer;
import org.apache.myfaces.component.html.ext.AbstractHtmlDataTable;
import org.apache.myfaces.component.html.ext.HtmlDataTable;
import org.apache.myfaces.custom.crosstable.UIColumns;
import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
import org.apache.myfaces.shared_tomahawk.renderkit.html.HTML;

@JSFRenderer(renderKitId = "HTML_BASIC", family = "org.apache.myfaces.HtmlDetailStampRow", type = "org.apache.myfaces.HtmlDetailStampRow")
public class HtmlDetailStampRowRenderer extends Renderer
{

    @Override
    public void encodeEnd(FacesContext facesContext, UIComponent component)
            throws IOException
    {
        super.encodeEnd(facesContext, component);
        UIData uiData = (UIData) component.getParent();
        UIComponent detailStampFacet = uiData.getFacet(AbstractHtmlDataTable.DETAIL_STAMP_FACET_NAME);
        if (uiData instanceof HtmlDataTable) {
            HtmlDataTable htmlDataTable = (HtmlDataTable) uiData;

            if (htmlDataTable.isCurrentDetailExpanded()) {

                boolean embedded = false;
                if (detailStampFacet != null) {
                    embedded = isEmbeddedTable(detailStampFacet);
                }

                ResponseWriter writer = facesContext.getResponseWriter();

                if (!embedded) {
                    writer.startElement(HTML.TR_ELEM, uiData);
                    writer.writeAttribute(HTML.ID_ATTR, component.getClientId(facesContext), null);
                    writer.startElement(HTML.TD_ELEM, uiData);
                    //TOMAHAWK-1087 datatable dont renders a detail correct 
                    //if a UIColumns is used we have to count UIColumns 
                    //elements as component.getRowCount()
                    //instead of just get the number of children available,
                    //so the colspan could be assigned correctly.
                    int childCount = 0;
                    for (Iterator childIter = uiData.getChildren().iterator();
                        childIter.hasNext();)
                    {
                        UIComponent childComp = (UIComponent) childIter.next();
                        if (childComp instanceof UIColumns)
                        {
                            UIColumns v = (UIColumns) childComp;
                            childCount += v.getRowCount();
                        }
                        else
                        {
                            childCount++;
                        }
                    }
                    writer.writeAttribute(HTML.COLSPAN_ATTR, new Integer(
                            childCount), null);
                }

                if (detailStampFacet != null) {
                    RendererUtils.renderChild(facesContext, detailStampFacet);
                }

                if (!embedded) {
                    writer.endElement(HTML.TD_ELEM);
                    writer.endElement(HTML.TR_ELEM);
                }
            }
            else
            {
                boolean embedded = false;
                if (detailStampFacet != null) {
                    embedded = isEmbeddedTable(detailStampFacet);
                }

                ResponseWriter writer = facesContext.getResponseWriter();

                if (!embedded) {
                    writer.startElement(HTML.TR_ELEM, uiData);
                    writer.writeAttribute(HTML.ID_ATTR, component.getClientId(facesContext), null);
                    writer.writeAttribute(HTML.STYLE_ATTR, "display:none", null);
                    writer.endElement(HTML.TR_ELEM);
                }
            }
        }
    }
    
    protected boolean isEmbeddedTable(UIComponent uiComponent) {
        boolean embedded = false;
        if (uiComponent instanceof HtmlDataTable) {
            HtmlDataTable table = (HtmlDataTable) uiComponent;
            embedded = table.isEmbedded();
        }
        return embedded;
    }

    @Override
    public boolean getRendersChildren()
    {
        return true;
    }
    
    public void encodeChildren(FacesContext context, UIComponent component) throws IOException
    {
    }
}