| /******************************************************************************* |
| * Copyright (c) 2004, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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 |
| |
| } |
| |
| } |