/*
* RHQ Management Platform
* Copyright 2010, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.coregui.client.components.table;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridRecord;
/**
* @author Ian Springer
*/
public abstract class AbstractTableAction implements TableAction {
private TableActionEnablement enablement;
protected AbstractTableAction() {
this(TableActionEnablement.ALWAYS);
}
protected AbstractTableAction(TableActionEnablement enablement) {
this.enablement = enablement;
}
public boolean isEnabled(ListGridRecord[] selection) {
int count = selection.length;
boolean enabled;
switch (this.enablement) {
case NEVER:
enabled = false;
break;
case SINGLE:
enabled = (count == 1);
break;
case MULTIPLE:
enabled = (count > 1);
break;
case ANY:
enabled = (count >= 1);
break;
case ALWAYS:
enabled = true;
break;
default:
throw new IllegalStateException("Unsupported SelectionEnablement: " + enablement.name());
}
return enabled;
}
public boolean enableIfRecordsExist(ListGrid listGrid) {
return listGrid != null && listGrid.getTotalRows() != 0;
}
public abstract void executeAction(ListGridRecord[] selection, Object actionValue);
}