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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.externaltools.internal.ant.view;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.externaltools.internal.ant.view.elements.AntNode;
import org.eclipse.ui.externaltools.internal.ant.view.elements.ProjectNode;
import org.eclipse.ui.externaltools.internal.ant.view.elements.RootNode;
import org.eclipse.ui.externaltools.internal.ant.view.elements.TargetNode;
/**
* Content provider that provides a tree of ant projects.
*/
public class AntProjectContentProvider implements ITreeContentProvider {
/**
* The root node of the project tree
*/
private RootNode rootNode;
/**
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/**
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
}
/**
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
if (newInput instanceof RootNode) {
rootNode= (RootNode) newInput;
}
}
/**
* Adds the given buildfile to the tree. Has no effect if the given build
* file is already present in the tree.
*
* @param buildFileName the string representing the path to a build file
*/
public void addProject(ProjectNode project) {
ProjectNode[] projects= getRootNode().getProjects();
for (int i = 0; i < projects.length; i++) {
ProjectNode node = projects[i];
if (node.getBuildFileName().equals(project.getBuildFileName())) {
return;
}
}
getRootNode().addProject(project);
}
/**
* Returns the root node of the tree or <code>null</code> if no root has
* been set as the input
*
* @return RootNode the root node of the tree
*/
public RootNode getRootNode() {
return rootNode;
}
/**
* @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(Object)
*/
public Object[] getChildren(Object element) {
if (element instanceof RootNode) {
return ((RootNode) element).getProjects();
} else if (element instanceof ProjectNode) {
return ((ProjectNode) element).getTargets();
}
return null;
}
/**
* @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(Object)
*/
public Object getParent(Object element) {
if (element instanceof AntNode) {
return ((AntNode) element).getParent();
}
return null;
}
/**
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(Object)
*/
public boolean hasChildren(Object element) {
if (element instanceof TargetNode) {
return false;
}
return true;
}
}
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