/*
* xulfaces : bring XUL power to Java
*
* Copyright (C) 2005 Olivier SCHMITT
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.xulfaces.renderer.listbox;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.xulfaces.annotation.faces.RENDERER;
import org.xulfaces.component.listbox.DataListBoxComponent;
import org.xulfaces.component.listbox.ListColsComponent;
import org.xulfaces.component.listbox.ListHeadComponent;
import org.xulfaces.component.listbox.ListItemComponent;
import org.xulfaces.renderer.XULRenderer;
/**
*
* @author kito31
* @version $Id$
*/
@RENDERER(kit="XUL_RENDERKIT",family="xul.component.family",type="xul.renderer.DataListBox")
public class DataListBoxRenderer extends XULRenderer {
private static final Log log = LogFactory.getLog(DataListBoxRenderer.class);
public void decode(FacesContext facesContext, UIComponent component) {
DataListBoxComponent listBoxComponent = (DataListBoxComponent) component;
listBoxComponent.setSelectedRows(null);
if (isSubmitted(facesContext, component)) {
Map paramMap = facesContext.getExternalContext().getRequestParameterMap();
String clientId = component.getClientId(facesContext);
String selection = (String) paramMap.get(clientId);
if(log.isDebugEnabled()){
log.debug("DataListBoxComponent " + component.getId() + " selection is " + selection);
}
if ((selection != null) && (selection.length() > 0)) {
String selections[] = selection.split(" ");
if (selections != null) {
List<Integer> selectedRows = new ArrayList<Integer>();
for(int i= 0; i < selections.length;i++){
String rowId = selections[i];
int lastIndex = rowId.lastIndexOf(":");
if(lastIndex != -1){
int rowIndex = Integer.parseInt(rowId.substring(lastIndex+1));
listBoxComponent.setRowIndex(rowIndex);
if(listBoxComponent.isRowAvailable()){
selectedRows.add(rowIndex);
}
}
}
listBoxComponent.setSelectedRows(selectedRows);
}
}
}
}
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
super.encodeBegin(facesContext,component);
ResponseWriter responseWriter = facesContext.getResponseWriter();
responseWriter.startElement("listbox", component);
responseWriter.writeAttribute("id", component.getClientId(facesContext), "id");
renderAttributes(facesContext, component, (List) component
.getAttributes().get("annotatedAttributes"));
}
public void encodeEnd(FacesContext facesContext, UIComponent arg1) throws IOException {
ResponseWriter responseWriter = facesContext.getResponseWriter();
responseWriter.endElement("listbox");
}
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
DataListBoxComponent listBoxComponent = (DataListBoxComponent) component;
encodeListHead(facesContext,listBoxComponent);
encodeListCols(facesContext,listBoxComponent);
encodeListItem(facesContext,listBoxComponent);
}
protected void encodeListHead(FacesContext facesContext, DataListBoxComponent listBoxComponent) throws IOException{
List<UIComponent> children = listBoxComponent.getChildren();
if(!children.isEmpty()){
for(UIComponent child:children){
if(child instanceof ListHeadComponent){
renderChild(facesContext, child);
}
}
}
}
protected void encodeListCols(FacesContext facesContext, DataListBoxComponent listBoxComponent) throws IOException{
List<UIComponent> children = listBoxComponent.getChildren();
if(!children.isEmpty()){
for(UIComponent child:children){
if(child instanceof ListColsComponent){
renderChild(facesContext, child);
}
}
}
}
protected void encodeListItem(FacesContext facesContext, DataListBoxComponent listBoxComponent) throws IOException{
List<UIComponent> children = listBoxComponent.getChildren();
if(!children.isEmpty()){
int first = listBoxComponent.getFirst();
int rows = listBoxComponent.getRows();
int rowCount = listBoxComponent.getRowCount();
Object value = listBoxComponent.getValue();
if (value != null) {
if (value instanceof Collection) {
if (rows <= 0) {
rows = rowCount - first;
}
int last = first + rows;
if (last > rowCount) {
last = rowCount;
}
for (int i = first; i < last; i++) {
listBoxComponent.setRowIndex(i);
if (!listBoxComponent.isRowAvailable()) {
return;
}
Object object = listBoxComponent.getRowData();
for(UIComponent child:children){
if(child instanceof ListItemComponent){
child.getAttributes().put("rowId",(new Integer(i)).toString());
renderChild(facesContext, child);
}
}
}
}
}
}
}
protected void encodeRow(FacesContext facesContext, DataListBoxComponent listBoxComponent, Object value)
throws IOException {
List<UIComponent> children = listBoxComponent.getChildren();
for (UIComponent child : children) {
if(child instanceof ListColsComponent){
List<UIComponent> listcolsChildren = child.getChildren();
for (UIComponent listcol : listcolsChildren) {
List<UIComponent> listcolChildren =listcol.getChildren();
for(UIComponent listcolChild: listcolChildren){
renderChild(facesContext, listcolChild);
}
}
}
}
}
public boolean getRendersChildren() {
return true;
}
}