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package org.eclipse.osee.ote.ui.builder;
import java.util.Iterator;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandlerListener;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
public class ToggleNatureHandler extends AbstractHandler {
@Override
public void addHandlerListener(IHandlerListener handlerListener) {
// TODO Auto-generated method stub
}
@Override
public void dispose() {
// TODO Auto-generated method stub
}
@SuppressWarnings("rawtypes")
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IStructuredSelection selection = getCurrentSelection();
if (selection != null && selection instanceof IStructuredSelection) {
for (Iterator it = ((IStructuredSelection) selection).iterator(); it.hasNext();) {
Object element = it.next();
IProject project = null;
if (element instanceof IProject) {
project = (IProject) element;
} else if (element instanceof IAdaptable) {
project = (IProject) ((IAdaptable) element).getAdapter(IProject.class);
}
if (project != null) {
toggleNature(project);
}
}
}
return null;
}
private void toggleNature(IProject project) {
try {
IProjectDescription description = project.getDescription();
String[] natures = description.getNatureIds();
for (int i = 0; i < natures.length; ++i) {
if (OTEPackagingNature.NATURE_ID.equals(natures[i])) {
// Remove the nature
String[] newNatures = new String[natures.length - 1];
System.arraycopy(natures, 0, newNatures, 0, i);
System.arraycopy(natures, i + 1, newNatures, i,
natures.length - i - 1);
description.setNatureIds(newNatures);
project.setDescription(description, null);
return;
}
}
// Add the nature
String[] newNatures = new String[natures.length + 1];
System.arraycopy(natures, 0, newNatures, 0, natures.length);
newNatures[natures.length] = OTEPackagingNature.NATURE_ID;
description.setNatureIds(newNatures);
project.setDescription(description, null);
} catch (CoreException e) {
}
}
private IStructuredSelection getCurrentSelection() {
IWorkbench workbench = PlatformUI.getWorkbench();
if (!workbench.isStarting() && !workbench.isClosing()) {
IWorkbenchPage page = getActivePage();
if (page != null) {
IWorkbenchPart part = page.getActivePart();
if (part != null) {
IWorkbenchSite site = part.getSite();
if (site != null) {
ISelectionProvider selectionProvider = site.getSelectionProvider();
if(selectionProvider != null){
ISelection selection = selectionProvider.getSelection();
if (selection instanceof IStructuredSelection) {
return (IStructuredSelection) selection;
}
}
}
}
}
}
return null;
}
@Override
public boolean isEnabled() {
return true;
}
@Override
public boolean isHandled() {
return true;
}
@Override
public void removeHandlerListener(IHandlerListener handlerListener) {
// TODO Auto-generated method stub
}
private IWorkbenchPage getActivePage() {
IWorkbenchWindow workbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
return workbenchWindow != null ? workbenchWindow.getActivePage() : null;
}
}
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