org.primefaces.component.datatable.feature.RowExpandFeature Maven / Gradle / Ivy
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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.
/**
* Copyright 2009-2018 PrimeTek.
*
* Licensed 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.primefaces.component.datatable.feature;
import java.io.IOException;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.datatable.DataTable;
import org.primefaces.component.datatable.DataTableRenderer;
import org.primefaces.component.rowexpansion.RowExpansion;
import org.primefaces.model.LazyDataModel;
public class RowExpandFeature implements DataTableFeature {
public void decode(FacesContext context, DataTable table) {
throw new RuntimeException("RowExpandFeature should not encode.");
}
public void encode(FacesContext context, DataTableRenderer renderer, DataTable table) throws IOException {
Map params = context.getExternalContext().getRequestParameterMap();
int expandedRowIndex = Integer.parseInt(params.get(table.getClientId(context) + "_expandedRowIndex"));
if (table.isLazy() && ((LazyDataModel) table.getValue()).getWrappedData() == null) {
table.loadLazyData();
}
encodeExpansion(context, renderer, table, expandedRowIndex);
table.setRowIndex(-1);
}
public void encodeExpansion(FacesContext context, DataTableRenderer renderer, DataTable table, int rowIndex) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String rowIndexVar = table.getRowIndexVar();
RowExpansion rowExpansion = table.getRowExpansion();
String styleClass = DataTable.EXPANDED_ROW_CONTENT_CLASS + " ui-widget-content";
if (rowExpansion.getStyleClass() != null) {
styleClass = styleClass + " " + rowExpansion.getStyleClass();
}
table.setRowIndex(rowIndex);
if (rowExpansion.isRendered()) {
if (rowIndexVar != null) {
context.getExternalContext().getRequestMap().put(rowIndexVar, rowIndex);
}
writer.startElement("tr", null);
writer.writeAttribute("class", styleClass, null);
writer.startElement("td", null);
writer.writeAttribute("colspan", table.getColumnsCount(), null);
table.getRowExpansion().encodeAll(context);
writer.endElement("td");
writer.endElement("tr");
}
}
public boolean shouldDecode(FacesContext context, DataTable table) {
return false;
}
public boolean shouldEncode(FacesContext context, DataTable table) {
return context.getExternalContext().getRequestParameterMap().containsKey(table.getClientId(context) + "_rowExpansion");
}
}