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org.primefaces.component.paginator.RowsPerPageDropdownRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2015 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.paginator;
import java.io.IOException;
import java.util.logging.Logger;
import javax.faces.component.UINamingContainer;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.api.Pageable;
import org.primefaces.component.api.UIData;
import org.primefaces.util.MessageFactory;
public class RowsPerPageDropdownRenderer implements PaginatorElementRenderer {
private final static Logger logger = Logger.getLogger(RowsPerPageDropdownRenderer.class.getName());
public void render(FacesContext context, Pageable pageable) throws IOException {
String template = pageable.getRowsPerPageTemplate();
UIViewRoot viewroot = context.getViewRoot();
char separator = UINamingContainer.getSeparatorChar(context);
if(template != null) {
ResponseWriter writer = context.getResponseWriter();
int actualRows = pageable.getRows();
String[] options = pageable.getRowsPerPageTemplate().split("[,\\s]+");
String label = pageable.getRowsPerPageLabel();
if(label != null)
logger.info("RowsPerPageLabel attribute is deprecated, use 'primefaces.paginator.aria.ROWS_PER_PAGE' key instead to override default message.");
else
label = MessageFactory.getMessage(UIData.ROWS_PER_PAGE_LABEL, null);
String clientId = pageable.getClientId(context);
String ddId = clientId + separator + viewroot.createUniqueId();
String ddName = clientId + "_rppDD";
String labelId = null;
if(label != null) {
labelId = clientId + "_rppLabel";
writer.startElement("label", null);
writer.writeAttribute("id", labelId, null);
writer.writeAttribute("for", ddId, null);
writer.writeAttribute("class", UIData.PAGINATOR_RPP_LABEL_CLASS, null);
writer.writeText(label, null);
writer.endElement("label");
}
writer.startElement("select", null);
writer.writeAttribute("id", ddId, null);
writer.writeAttribute("name", ddName, null);
if(label != null) {
writer.writeAttribute("aria-labelledby", labelId, null);
}
writer.writeAttribute("class", UIData.PAGINATOR_RPP_OPTIONS_CLASS, null);
writer.writeAttribute("value", pageable.getRows(), null);
writer.writeAttribute("autocomplete", "off", null);
for( String option : options){
int rows = Integer.parseInt(option);
writer.startElement("option", null);
writer.writeAttribute("value", rows, null);
if(actualRows == rows){
writer.writeAttribute("selected", "selected", null);
}
writer.writeText(option, null);
writer.endElement("option");
}
writer.endElement("select");
}
}
}