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org.primefaces.component.datalist.DataListRenderer Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.component.datalist;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.DataRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.WidgetBuilder;
public class DataListRenderer extends DataRenderer {
private static final Logger LOGGER = Logger.getLogger(DataListRenderer.class.getName());
@Override
public void decode(FacesContext context, UIComponent component) {
decodeBehaviors(context, component);
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
DataList list = (DataList) component;
if (list.isPaginationRequest(context)) {
list.updatePaginationData(context);
if (list.isLazy()) {
list.loadLazyData();
}
if (list.getType().equals("none")) {
encodeFreeList(context, list);
}
else {
encodeStrictList(context, list);
}
if (list.isMultiViewState()) {
DataListState ls = list.getMultiViewState(true);
ls.setFirst(list.getFirst());
ls.setRows(list.getRows());
}
}
else {
if (list.isMultiViewState()) {
list.restoreMultiViewState();
}
encodeMarkup(context, list);
encodeScript(context, list);
if (list.isPaginator() && list.getRows() == 0) {
LOGGER.log(Level.WARNING, "DataList with paginator=true should also set the rows attribute. ClientId: {0}", list.getClientId());
}
}
}
protected void encodeMarkup(FacesContext context, DataList list) throws IOException {
if (list.isLazy()) {
list.loadLazyData();
}
ResponseWriter writer = context.getResponseWriter();
String clientId = list.getClientId(context);
boolean hasPaginator = list.isPaginator();
boolean empty = (list.getRowCount() == 0);
String paginatorPosition = list.getPaginatorPosition();
String styleClass = getStyleClassBuilder(context).add(DataList.DATALIST_CLASS).add(list.getStyleClass()).build();
String style = list.getStyle();
if (hasPaginator) {
list.calculateFirst();
}
writer.startElement("div", list);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if (style != null) {
writer.writeAttribute("style", style, "style");
}
encodeFacet(context, list, "header", DataList.HEADER_CLASS);
if (hasPaginator && !"bottom".equalsIgnoreCase(paginatorPosition)) {
encodePaginatorMarkup(context, list, "top");
}
writer.startElement("div", list);
writer.writeAttribute("id", clientId + "_content", "id");
writer.writeAttribute("class", DataList.CONTENT_CLASS, "styleClass");
if (empty) {
writer.startElement("div", list);
writer.writeAttribute("class", DataList.DATALIST_EMPTY_MESSAGE_CLASS, null);
writer.writeText(list.getEmptyMessage(), "emptyMessage");
writer.endElement("div");
}
else {
if (list.getType().equals("none")) {
encodeFreeList(context, list);
}
else {
encodeStrictList(context, list);
}
}
writer.endElement("div");
if (hasPaginator && !"top".equalsIgnoreCase(paginatorPosition)) {
encodePaginatorMarkup(context, list, "bottom");
}
encodeFacet(context, list, "footer", DataList.FOOTER_CLASS);
writer.endElement("div");
}
protected void encodeScript(FacesContext context, DataList list) throws IOException {
WidgetBuilder wb = getWidgetBuilder(context);
wb.init("DataList", list);
if (list.isPaginator()) {
encodePaginatorConfig(context, list, wb);
}
encodeClientBehaviors(context, list);
wb.finish();
}
/**
* Renders items with no strict markup
*
* @param context FacesContext instance
* @param list DataList component
* @throws IOException
*/
protected void encodeStrictList(FacesContext context, DataList list) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = list.getClientId(context);
boolean isDefinition = list.isDefinition();
UIComponent definitionFacet = list.getFacet("description");
boolean renderDefinition = isDefinition && ComponentUtils.shouldRenderFacet(definitionFacet);
String itemType = list.getItemType();
String listClass = DataList.LIST_CLASS;
if ("none".equals(itemType)) {
listClass = listClass + " " + DataList.NO_BULLETS_CLASS;
}
String listTag = list.getListTag();
String listItemTag = isDefinition ? "dt" : "li";
writer.startElement(listTag, null);
writer.writeAttribute("id", clientId + "_list", null);
writer.writeAttribute("class", listClass, null);
if (list.getItemType() != null) {
writer.writeAttribute("type", list.getItemType(), null);
}
list.forEachRow((status) -> {
try {
String itemStyleClass = getStyleClassBuilder(context).add(DataList.LIST_ITEM_CLASS, list.getItemStyleClass()).build();
writer.startElement(listItemTag, null);
writer.writeAttribute("class", itemStyleClass, null);
renderChildren(context, list);
writer.endElement(listItemTag);
if (renderDefinition) {
writer.startElement("dd", null);
definitionFacet.encodeAll(context);
writer.endElement("dd");
}
}
catch (IOException e) {
throw new FacesException(e);
}
});
writer.endElement(listTag);
}
/**
* Renders items with no strict markup
*
* @param context FacesContext instance
* @param list DataList component
* @throws IOException
*/
protected void encodeFreeList(FacesContext context, DataList list) throws IOException {
list.forEachRow((status) -> {
try {
renderChildren(context, list);
}
catch (IOException e) {
throw new FacesException(e);
}
});
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//Do Nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}