/*
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* Copyright ${year}, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.renderkit;
import java.io.IOException;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.ajax4jsf.model.DataVisitResult;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.component.AbstractDataGrid;
import org.richfaces.component.Row;
import org.richfaces.component.UIDataTableBase;
/**
* @author Anton Belevich
*
*/
@JsfRenderer(type = "org.richfaces.DataGridRenderer", family = AbstractDataGrid.COMPONENT_FAMILY)
@ResourceDependencies({ @ResourceDependency(library = "javax.faces", name = "jsf.js"),
@ResourceDependency(library = "org.richfaces", name = "jquery.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-queue.reslib"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-base-component.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-event.js"),
@ResourceDependency(library = "org.richfaces", name = "datagrid.ecss") })
public class DataGridRenderer extends AbstractRowsRenderer implements MetaComponentRenderer {
private static final EncodeStrategy THEAD = new EncodeStrategy() {
public void begin(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params)
throws IOException {
String clientId = component.getClientId(context) + ":h";
boolean partial = (Boolean) (Boolean) params[0];
if (partial) {
context.getPartialViewContext().getPartialResponseWriter().startUpdate(clientId);
}
writer.startElement(HtmlConstants.THEAD_ELEMENT, component);
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, clientId, null);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-thead", null);
writer.startElement(HtmlConstants.TR_ELEMENT, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-h", null);
writer.startElement(HtmlConstants.TH_ELEM, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-h-c", null);
int columns = (Integer) component.getAttributes().get("columns");
if (columns > 0) {
writer.writeAttribute(HtmlConstants.COLSPAN_ATTRIBUTE, columns, null);
}
}
public void end(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params) throws IOException {
writer.endElement(HtmlConstants.TH_ELEM);
writer.endElement(HtmlConstants.TR_ELEMENT);
writer.endElement(HtmlConstants.THEAD_ELEMENT);
boolean partial = (Boolean) (Boolean) params[0];
if (partial) {
context.getPartialViewContext().getPartialResponseWriter().endUpdate();
}
}
};
private static final EncodeStrategy TFOOT = new EncodeStrategy() {
public void begin(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params)
throws IOException {
String clientId = component.getClientId(context) + ":f";
boolean partial = (Boolean) (Boolean) params[0];
if (partial) {
context.getPartialViewContext().getPartialResponseWriter().startUpdate(clientId);
}
writer.startElement(HtmlConstants.TFOOT_ELEMENT, component);
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, clientId, null);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-tfoot", null);
writer.startElement(HtmlConstants.TR_ELEMENT, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-f", null);
writer.startElement(HtmlConstants.TD_ELEM, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-f-c", null);
int columns = (Integer) component.getAttributes().get("columns");
if (columns > 0) {
writer.writeAttribute(HtmlConstants.COLSPAN_ATTRIBUTE, columns, null);
}
}
public void end(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params) throws IOException {
writer.endElement(HtmlConstants.TD_ELEM);
writer.endElement(HtmlConstants.TR_ELEMENT);
writer.endElement(HtmlConstants.TFOOT_ELEMENT);
boolean partial = (Boolean) (Boolean) params[0];
if (partial) {
context.getPartialViewContext().getPartialResponseWriter().endUpdate();
}
}
};
private static final EncodeStrategy CAPTION = new EncodeStrategy() {
public void begin(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params)
throws IOException {
writer.startElement(HtmlConstants.CAPTION_ELEMENT, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-cap", null);
}
public void end(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params) throws IOException {
writer.endElement(HtmlConstants.CAPTION_ELEMENT);
}
};
private static final EncodeStrategy NODATA = new EncodeStrategy() {
public void begin(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params)
throws IOException {
writer.startElement(HtmlConstants.TR_ELEMENT, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-nd", null);
writer.startElement(HtmlConstants.TD_ELEM, component);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-nd-c", null);
int columns = (Integer) component.getAttributes().get("columns");
if (columns > 0) {
writer.writeAttribute(HtmlConstants.COLSPAN_ATTRIBUTE, columns, null);
}
}
public void end(ResponseWriter writer, FacesContext context, UIComponent component, Object[] params) throws IOException {
writer.endElement(HtmlConstants.TD_ELEM);
writer.endElement(HtmlConstants.TR_ELEMENT);
}
};
@Override
public void encodeRow(ResponseWriter writer, FacesContext facesContext, RowHolderBase rowHolder) throws IOException {
AbstractDataGrid dataGrid = (AbstractDataGrid) rowHolder.getRow();
int columns = dataGrid.getColumns();
int processCell = rowHolder.getProcessCell();
if (columns > 0 && (processCell % columns == 0)) {
if (processCell != 0) {
writer.endElement(HtmlConstants.TR_ELEMENT);
rowHolder.resetProcessCell();
}
writer.startElement(HtmlConstants.TR_ELEMENT, dataGrid);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-r", null);
rowHolder.nextRow();
}
writer.startElement(HtmlConstants.TD_ELEM, dataGrid);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-c", null);
renderChildren(facesContext, dataGrid);
writer.endElement(HtmlConstants.TD_ELEM);
}
public void encodeHeader(ResponseWriter writer, FacesContext facesContext, AbstractDataGrid dataGrid, boolean partial)
throws IOException {
UIComponent headerFacet = dataGrid.getHeader();
encodeFacet(writer, facesContext, headerFacet, THEAD, dataGrid, new Object[] { partial });
}
public void encodeFooter(ResponseWriter writer, FacesContext facesContext, AbstractDataGrid dataGrid, boolean partial)
throws IOException {
UIComponent footerFacet = dataGrid.getFooter();
encodeFacet(writer, facesContext, footerFacet, TFOOT, dataGrid, new Object[] { partial });
}
public void encodeCaption(ResponseWriter writer, FacesContext facesContext, AbstractDataGrid dataGrid) throws IOException {
UIComponent captionFacet = dataGrid.getCaption();
encodeFacet(writer, facesContext, captionFacet, CAPTION, dataGrid, null);
}
public void encodeNoData(ResponseWriter writer, FacesContext facesContext, AbstractDataGrid dataGrid) throws IOException {
UIComponent noDataFacet = dataGrid.getNoData();
encodeFacet(writer, facesContext, noDataFacet, NODATA, dataGrid, null);
}
public void encodeFacet(ResponseWriter writer, FacesContext facesContext, UIComponent facet, EncodeStrategy strategy,
AbstractDataGrid dataGrid, Object[] params) throws IOException {
if (facet != null && facet.isRendered()) {
strategy.begin(writer, facesContext, dataGrid, params);
facet.encodeAll(facesContext);
strategy.end(writer, facesContext, dataGrid, params);
}
}
public void encodeTBody(ResponseWriter writer, FacesContext facesContext, AbstractDataGrid dataGrid, boolean partial)
throws IOException {
String clientId = dataGrid.getClientId(facesContext) + ":dgb";
if (partial) {
facesContext.getPartialViewContext().getPartialResponseWriter().startUpdate(clientId);
}
writer.startElement(HtmlConstants.TBODY_ELEMENT, dataGrid);
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, clientId, null);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-body", null);
if (dataGrid.getRowCount() > 0) {
processRows(writer, facesContext, dataGrid, null);
} else {
encodeNoData(writer, facesContext, dataGrid);
}
writer.endElement(HtmlConstants.TBODY_ELEMENT);
if (partial) {
facesContext.getPartialViewContext().getPartialResponseWriter().endUpdate();
}
}
@Override
protected void doEncodeChildren(ResponseWriter writer, FacesContext facesContext, UIComponent component) throws IOException {
AbstractDataGrid dataGrid = (AbstractDataGrid) component;
writer.startElement(HtmlConstants.TABLE_ELEMENT, dataGrid);
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, dataGrid.getClientId(facesContext), null);
Map<String, Object> attributes = dataGrid.getAttributes();
String classes = concatClasses("rf-dg", attributes.get(HtmlConstants.STYLE_CLASS_ATTR));
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, classes, null);
RenderKitUtils.renderAttribute(facesContext, "style", attributes.get(HtmlConstants.STYLE_ATTRIBUTE));
RenderKitUtils.renderAttribute(facesContext, HtmlConstants.TITLE_ATTRIBUTE,
attributes.get(HtmlConstants.TITLE_ATTRIBUTE));
encodeCaption(writer, facesContext, dataGrid);
encodeHeader(writer, facesContext, dataGrid, false);
encodeFooter(writer, facesContext, dataGrid, false);
encodeTBody(writer, facesContext, dataGrid, false);
writer.endElement(HtmlConstants.TABLE_ELEMENT);
}
@Override
public RowHolderBase createRowHolder(FacesContext context, UIComponent component, Object[] options) {
return new RowHolder(context, (AbstractDataGrid) component);
}
@Override
protected Class<? extends UIComponent> getComponentClass() {
return AbstractDataGrid.class;
}
public void encodeMetaComponent(FacesContext context, UIComponent component, String metaComponentId) throws IOException {
AbstractDataGrid table = (AbstractDataGrid) component;
if (UIDataTableBase.HEADER.equals(metaComponentId)) {
encodeHeader(context.getResponseWriter(), context, table, true);
} else if (UIDataTableBase.FOOTER.equals(metaComponentId)) {
encodeFooter(context.getResponseWriter(), context, table, true);
} else if (UIDataTableBase.BODY.equals(metaComponentId)) {
encodeTBody(context.getResponseWriter(), context, table, true);
} else {
throw new IllegalArgumentException("Unsupported metaComponentIdentifier: " + metaComponentId);
}
}
public void decodeMetaComponent(FacesContext context, UIComponent component, String metaComponentId) {
throw new UnsupportedOperationException();
}
@Override
protected void doCleanup(FacesContext context, RowHolderBase rowHolder) throws IOException {
ResponseWriter writer = context.getResponseWriter();
AbstractDataGrid dataGrid = (AbstractDataGrid) rowHolder.getRow();
int cell = rowHolder.getProcessCell();
int columns = dataGrid.getColumns();
int rest = columns - cell;
for (int i = 0; i < rest; i++) {
writer.startElement(HtmlConstants.TD_ELEM, dataGrid);
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE, "rf-dg-c", null);
writer.endElement(HtmlConstants.TD_ELEM);
}
writer.endElement(HtmlConstants.TR_ELEMENT);
}
public DataVisitResult process(FacesContext facesContext, Object rowKey, Object argument) {
RowHolderBase holder = (RowHolderBase) argument;
Row row = holder.getRow();
row.setRowKey(facesContext, rowKey);
try {
ResponseWriter writer = facesContext.getResponseWriter();
encodeRow(writer, facesContext, holder);
} catch (IOException e) {
throw new FacesException(e);
}
holder.nextCell();
return DataVisitResult.CONTINUE;
}
@Override
public void encodeFakeRow(FacesContext facesContext, RowHolderBase rowHolder) throws IOException {
UIComponent component = (UIComponent) rowHolder.getRow();
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(HtmlConstants.TR_ELEMENT, component);
writer.writeAttribute(HtmlConstants.STYLE_ATTRIBUTE, "display:none", null);
writer.startElement(HtmlConstants.TD_ELEM, component);
writer.endElement(HtmlConstants.TD_ELEM);
writer.endElement(HtmlConstants.TR_ELEMENT);
}
}