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/*******************************************************************************
* Copyright (c) 2000, 2009 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 com.android.ide.eclipse.adt.internal.wizards.newproject;
import org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart;
import org.eclipse.jdt.internal.ui.workingsets.IWorkingSetIDs;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeSelection;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkingSet;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* This class contains a helper method to deal with working sets.
* <p/>
* Copied from org.eclipse.jdt.ui.wizards.NewJavaProjectWizardPageOne
*/
@SuppressWarnings("restriction")
public final class WorkingSetHelper {
private static final IWorkingSet[] EMPTY_WORKING_SET_ARRAY = new IWorkingSet[0];
/** This class is never instantiated. */
private WorkingSetHelper() {
}
public static IWorkingSet[] getSelectedWorkingSet(IStructuredSelection selection,
IWorkbenchPart activePart) {
IWorkingSet[] selected= getSelectedWorkingSet(selection);
if (selected != null && selected.length > 0) {
for (int i= 0; i < selected.length; i++) {
if (!isValidWorkingSet(selected[i]))
return EMPTY_WORKING_SET_ARRAY;
}
return selected;
}
if (!(activePart instanceof PackageExplorerPart))
return EMPTY_WORKING_SET_ARRAY;
PackageExplorerPart explorerPart= (PackageExplorerPart) activePart;
if (explorerPart.getRootMode() == PackageExplorerPart.PROJECTS_AS_ROOTS) {
//Get active filter
IWorkingSet filterWorkingSet= explorerPart.getFilterWorkingSet();
if (filterWorkingSet == null)
return EMPTY_WORKING_SET_ARRAY;
if (!isValidWorkingSet(filterWorkingSet))
return EMPTY_WORKING_SET_ARRAY;
return new IWorkingSet[] {filterWorkingSet};
} else {
//If we have been gone into a working set return the working set
Object input= explorerPart.getViewPartInput();
if (!(input instanceof IWorkingSet))
return EMPTY_WORKING_SET_ARRAY;
IWorkingSet workingSet= (IWorkingSet)input;
if (!isValidWorkingSet(workingSet))
return EMPTY_WORKING_SET_ARRAY;
return new IWorkingSet[] {workingSet};
}
}
private static IWorkingSet[] getSelectedWorkingSet(IStructuredSelection selection) {
if (!(selection instanceof ITreeSelection))
return EMPTY_WORKING_SET_ARRAY;
ITreeSelection treeSelection= (ITreeSelection) selection;
if (treeSelection.isEmpty())
return EMPTY_WORKING_SET_ARRAY;
List<?> elements = treeSelection.toList();
if (elements.size() == 1) {
Object element= elements.get(0);
TreePath[] paths= treeSelection.getPathsFor(element);
if (paths.length != 1)
return EMPTY_WORKING_SET_ARRAY;
TreePath path= paths[0];
if (path.getSegmentCount() == 0)
return EMPTY_WORKING_SET_ARRAY;
Object candidate= path.getSegment(0);
if (!(candidate instanceof IWorkingSet))
return EMPTY_WORKING_SET_ARRAY;
IWorkingSet workingSetCandidate= (IWorkingSet) candidate;
if (isValidWorkingSet(workingSetCandidate))
return new IWorkingSet[] { workingSetCandidate };
return EMPTY_WORKING_SET_ARRAY;
}
ArrayList<Object> result = new ArrayList<Object>();
for (Iterator<?> iterator = elements.iterator(); iterator.hasNext();) {
Object element= iterator.next();
if (element instanceof IWorkingSet && isValidWorkingSet((IWorkingSet) element)) {
result.add(element);
}
}
return result.toArray(new IWorkingSet[result.size()]);
}
private static boolean isValidWorkingSet(IWorkingSet workingSet) {
String id= workingSet.getId();
if (!IWorkingSetIDs.JAVA.equals(id) && !IWorkingSetIDs.RESOURCE.equals(id))
return false;
if (workingSet.isAggregateWorkingSet())
return false;
return true;
}
}
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