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/*******************************************************************************
* Copyright (c) 2004, 2016 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.intro.impl.model.viewer;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.internal.intro.impl.model.AbstractIntroContainer;
import org.eclipse.ui.internal.intro.impl.model.AbstractIntroElement;
public class IntroModelContentProvider implements ITreeContentProvider {
@Override
public Object[] getChildren(Object element) {
AbstractIntroElement introElement = null;
if (element instanceof AbstractIntroElement)
// synch the resource first.
introElement = (AbstractIntroElement) element;
if (introElement != null
&& introElement
.isOfType(AbstractIntroElement.ABSTRACT_CONTAINER))
return ((AbstractIntroContainer) introElement).getChildren();
return new Object[0];
}
@Override
public Object getParent(Object element) {
AbstractIntroElement introElement = null;
if (element instanceof AbstractIntroElement) {
// synch the resource first.
introElement = (AbstractIntroElement) element;
return introElement.getParent();
}
return null;
}
@Override
public boolean hasChildren(Object element) {
AbstractIntroElement introElement = null;
if (element instanceof AbstractIntroElement)
// synch the resource first.
introElement = (AbstractIntroElement) element;
if (introElement != null
&& introElement
.isOfType(AbstractIntroElement.ABSTRACT_CONTAINER))
return true;
return false;
}
@Override
public Object[] getElements(Object element) {
return getChildren(element);
}
@Override
public void dispose() {
// nothing to dispose
}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
// do nothing
}
}
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