/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) 1999-2006 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.core.gui.components.form.flexible.impl.rules;
import java.util.Set;
import org.olat.core.gui.components.form.flexible.FormItem;
import org.olat.core.gui.components.form.flexible.FormItemDependencyRule;
import org.olat.core.gui.components.form.flexible.elements.MultipleSelectionElement;
/**
* Description:<br>
* TODO: patrickb Class Description for MultiSelectionTriggerdDependencyRule
*
* <P>
* Initial Date: 11.02.2007 <br>
* @author patrickb
*/
class MultiSelectionTriggerdDependencyRule extends FormItemDependencyRuleImpl implements FormItemDependencyRule {
public MultiSelectionTriggerdDependencyRule(MultipleSelectionElement triggerElement, String triggerValue, Set<FormItem> targets, int type) {
super(triggerElement, triggerValue, targets, type);
}
/**
* @see org.olat.core.gui.components.form.flexible.rules.FormItemDependencyRuleImpl#doesTrigger()
*/
@Override
protected boolean doesTrigger() {
MultipleSelectionElement mse = (MultipleSelectionElement)this.triggerElement;
Set<String> selectedKeys = mse.getSelectedKeys();
//
boolean retval = false;
if(this.triggerVal==null){
//meaning no selection in a multi selection element
retval = selectedKeys.size() == 0;
}else{
//check that value is in selection
retval = selectedKeys.contains(this.triggerVal);
}
//
return retval;
//
}
}