/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.dialogs.cpd;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.internal.dialogs.cpd.CustomizePerspectiveDialog.ActionSet;
/**
* A Listener for a list of command groups, that updates the viewer and filter
* who are dependent on the action set selection.
*
* @since 3.5
*/
final class ActionSetSelectionChangedListener implements ISelectionChangedListener {
private final TreeViewer filterViewer;
private final ActionSetFilter filter;
public ActionSetSelectionChangedListener(TreeViewer viewer, ActionSetFilter menuStructureFilterByActionSet) {
this.filterViewer = viewer;
this.filter = menuStructureFilterByActionSet;
}
@Override
public void selectionChanged(SelectionChangedEvent event) {
Object element = ((IStructuredSelection) event.getSelection()).getFirstElement();
filter.setActionSet((ActionSet) element);
filterViewer.refresh();
filterViewer.expandAll();
}
}