org.primefaces.component.datatable.feature.RowEditFeature Maven / Gradle / Ivy
/*
* Copyright 2009-2014 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.component.EditableValueHolder;
import javax.faces.component.UIComponent;
import javax.faces.component.visit.VisitContext;
import javax.faces.context.FacesContext;
import org.primefaces.component.api.UIColumn;
import org.primefaces.component.celleditor.CellEditor;
import org.primefaces.component.datatable.DataTable;
import org.primefaces.component.datatable.DataTableRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.visit.ResetInputVisitCallback;
public class RowEditFeature implements DataTableFeature {
public void decode(FacesContext context, DataTable table) {
throw new RuntimeException("RowEditFeature should not encode.");
}
public void encode(FacesContext context, DataTableRenderer renderer, DataTable table) throws IOException {
if (table.isSelectionEnabled()) {
table.findSelectedRowKeys();
}
Map params = context.getExternalContext().getRequestParameterMap();
String clientId = table.getClientId(context);
int editedRowId = Integer.parseInt(params.get(clientId + "_rowEditIndex"));
String action = params.get(clientId + "_rowEditAction");
table.setRowIndex(editedRowId);
if (action.equals("cancel")) {
VisitContext visitContext = null;
for (UIColumn column : table.getColumns()) {
for (UIComponent grandkid : column.getChildren()) {
if (grandkid instanceof CellEditor) {
UIComponent inputFacet = grandkid.getFacet("input");
if (inputFacet instanceof EditableValueHolder) {
((EditableValueHolder) inputFacet).resetValue();
}
else {
if (visitContext == null) {
visitContext = VisitContext.createVisitContext(context, null, ComponentUtils.VISIT_HINTS_SKIP_UNRENDERED);
}
inputFacet.visitTree(visitContext, ResetInputVisitCallback.INSTANCE);
}
}
}
}
}
if (table.isRowAvailable()) {
renderer.encodeRow(context, table, clientId, editedRowId);
}
}
public boolean shouldDecode(FacesContext context, DataTable table) {
return false;
}
public boolean shouldEncode(FacesContext context, DataTable table) {
return context.getExternalContext().getRequestParameterMap().containsKey(table.getClientId(context) + "_rowEditAction");
}
}