/*
* Copyright (c) 2015 the original author or authors.
* 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:
* Etienne Studer & Donát Csikós (Gradle Inc.) - initial API and implementation and initial documentation
*/
package org.eclipse.buildship.ui.util.selection;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
/**
* Listener on a button that keeps the enabling state of its managed target controls in reverse to its selection.
*/
public final class TargetWidgetsInvertingSelectionListener extends SelectionAdapter {
private final Button source;
private final ImmutableList<Control> targets;
public TargetWidgetsInvertingSelectionListener(Button source, Control... targets) {
this.source = Preconditions.checkNotNull(source);
this.targets = ImmutableList.copyOf(targets);
}
@Override
public void widgetSelected(SelectionEvent e) {
boolean enabled = this.source.getSelection();
for (Control control : this.targets) {
control.setEnabled(!enabled);
}
}
}