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/*******************************************************************************
* Copyright (c) 2015 Obeo 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.ide.ui.internal.structuremergeviewer.actions;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.compare.Diff;
/**
* Factory for the tooltip managers.
*
* @author <a href="mailto:mathieu.cartaud@obeo.fr">Mathieu Cartaud</a>
*/
public final class TooltipFactory {
/**
* The AddTooltipManager instance.
*/
private static AddTooltipManager addTooltipManager;
/**
* The ChangeTooltipManager instance.
*/
private static ChangeTooltipManager changeTooltipManager;
/**
* The DeleteTooltipManager instance.
*/
private static DeleteTooltipManager deleteTooltipManager;
/**
* The MoveTooltipManager instance.
*/
private static MoveTooltipManager moveTooltipManager;
/**
* The constructor.
*/
private TooltipFactory() {
// Prevent instanciation.
}
/**
* Create a new instance of the right type or return the existing one for the given diff.
*
* @param adapterFactory
* The given adapter factory
* @param diff
* The diff which which the tooltip will be computed
* @return an instance of the good AbstractTooltipManager
*/
public static AbstractTooltipManager getTooltipManager(AdapterFactory adapterFactory, Diff diff) {
AbstractTooltipManager manager = null;
switch (diff.getKind()) {
case ADD:
if (addTooltipManager == null) {
addTooltipManager = new AddTooltipManager(adapterFactory);
}
manager = addTooltipManager;
break;
case CHANGE:
if (changeTooltipManager == null) {
changeTooltipManager = new ChangeTooltipManager(adapterFactory);
}
manager = changeTooltipManager;
break;
case DELETE:
if (deleteTooltipManager == null) {
deleteTooltipManager = new DeleteTooltipManager(adapterFactory);
}
manager = deleteTooltipManager;
break;
case MOVE:
if (moveTooltipManager == null) {
moveTooltipManager = new MoveTooltipManager(adapterFactory);
}
manager = moveTooltipManager;
break;
default:
// Do nothing
}
return manager;
}
}
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