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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.team.internal.ui.synchronize.views;
import java.util.*;
import org.eclipse.core.resources.*;
import org.eclipse.jface.viewers.AbstractTreeViewer;
import org.eclipse.team.core.subscribers.SyncInfo;
import org.eclipse.team.internal.core.subscribers.SyncSetChangedEvent;
import org.eclipse.team.ui.synchronize.SyncInfoDiffNode;
/**
* The contents provider compressed in-sync folder paths
*/
public class CompressedFolderContentProvider extends SyncSetTreeContentProvider {
/* (non-Javadoc)
* @see org.eclipse.team.internal.ui.sync.views.SyncSetContentProvider#handleResourceAdditions(org.eclipse.team.internal.ui.sync.views.SyncSetChangedEvent)
*/
protected void handleResourceAdditions(SyncSetChangedEvent event) {
AbstractTreeViewer tree = getTreeViewer();
if (tree != null) {
// TODO: For now, refresh any projects with additions
IResource[] roots = event.getAddedRoots();
refreshProjects(tree, roots);
} else {
super.handleResourceAdditions(event);
}
}
/* (non-Javadoc)
* @see org.eclipse.team.internal.ui.sync.views.SyncSetContentProvider#handleResourceRemovals(org.eclipse.team.internal.ui.sync.views.SyncSetChangedEvent)
*/
protected void handleResourceRemovals(SyncSetChangedEvent event) {
AbstractTreeViewer tree = getTreeViewer();
if (tree != null) {
// TODO: For now, refresh any projects with deletions
IResource[] roots = event.getRemovedRoots();
refreshProjects(tree, roots);
} else {
super.handleResourceRemovals(event);
}
}
private void refreshProjects(AbstractTreeViewer tree, IResource[] roots) {
if (roots.length == 0) return;
Set projects = new HashSet();
for (int i = 0; i < roots.length; i++) {
if (roots[i].getType() == IResource.PROJECT) {
// when a project is involved, refresh the whole tree
tree.refresh();
return;
}
projects.add(getModelObject(roots[i].getProject()));
}
for (Iterator iter = projects.iterator(); iter.hasNext();) {
Object element = (Object) iter.next();
tree.refresh(element);
}
}
public Object getParent(Object element) {
if (element instanceof CompressedFolder) {
// The parent of a compressed folder is always the project
return getModelObject(getResource(element).getProject());
}
Object parent = super.getParent(element);
if (parent instanceof SyncInfoDiffNode) {
SyncInfo info = ((SyncInfoDiffNode)parent).getSyncInfo();
if (info == null) {
// The resource is in-sync so return a compressed folder
IResource resource = ((SyncInfoDiffNode)parent).getResource();
if (resource.getType() == IResource.FOLDER) {
return new CompressedFolder(((SyncInfoDiffNode)parent).getSyncInfoSet(), resource);
}
}
}
return parent;
}
public Object[] getChildren(Object element) {
IResource resource = getResource(element);
if (resource != null) {
if (resource.getType() == IResource.PROJECT) {
return getProjectChildren((IProject)resource);
} else if (resource.getType() == IResource.FOLDER) {
return getFolderChildren(resource);
}
}
return super.getChildren(element);
}
private Object[] getFolderChildren(IResource resource) {
// Folders will only contain out-of-sync children
IResource[] children = getSyncSet().members(resource);
List result = new ArrayList();
for (int i = 0; i < children.length; i++) {
IResource child = children[i];
SyncInfo info = getSyncSet().getSyncInfo(child);
if (info != null) {
result.add(getModelObject(info.getLocal()));
}
}
return (Object[]) result.toArray(new Object[result.size()]);
}
private Object[] getProjectChildren(IProject project) {
SyncInfo[] outOfSync = getSyncSet().getOutOfSyncDescendants(project);
Set result = new HashSet();
for (int i = 0; i < outOfSync.length; i++) {
SyncInfo info = outOfSync[i];
IResource local = info.getLocal();
if (local.getProjectRelativePath().segmentCount() == 1) {
// If the resource is a child of the project, include it uncompressed
result.add(getModelObject(local));
} else {
IContainer container = getLowestInSyncParent(local);
if (container.getType() == IResource.FOLDER) {
result.add(getModelObject(container));
}
}
}
return (Object[]) result.toArray(new Object[result.size()]);
}
/**
* Return a compressed folder if the provided resource is an in-sync folder.
* Warning: This method will return a compressed folder for any in-sync
* folder, even those that do not contain out-of-sync resources (i.e. those that
* are not visible in the view).
*/
public Object getModelObject(IResource resource) {
if (resource.getType() == IResource.FOLDER && getSyncSet().getSyncInfo(resource) == null) {
return new CompressedFolder(getSyncSet(), resource);
}
return super.getModelObject(resource);
}
private IContainer getLowestInSyncParent(IResource resource) {
if (resource.getType() == IResource.ROOT) return (IContainer)resource;
IContainer parent = resource.getParent();
if (getSyncSet().getSyncInfo(parent) == null) {
return parent;
}
return getLowestInSyncParent(parent);
}
}
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