private void createProjectViewerField(Composite parent) {
projectViewer = new WorkspaceViewer(parent, SWT.BORDER);
projectViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
projectViewer.getViewer().addFilter(getFilter());
projectViewer
.getViewer()
.addSelectionChangedListener(
new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
String targetLocation = null;
IStructuredSelection selection =
(IStructuredSelection) projectViewer.getSelectionProvider().getSelection();
if (selection.getFirstElement() == null
|| !(selection.getFirstElement() instanceof IContainer)) {
setErrorMessage(SELECT_THE_LOCATION_OF_THE_GENERATED_PAGE);
} else {
setErrorMessage(null);
IContainer container = ((IContainer) selection.getFirstElement());
targetLocation = container.getFullPath().toString();
getModel().setTargetLocation(targetLocation);
}
checkPageStatus();
}
});
projectViewer.getViewer().expandToLevel(2);
}
protected Object getApropriateFolderForAction(String folderName) {
Object[] expandedElements = projectViewer.getViewer().getExpandedElements();
if (expandedElements == null || expandedElements.length == 0) {
return null;
}
ITreeContentProvider contentProvider =
(ITreeContentProvider) projectViewer.getViewer().getContentProvider();
IResource sourceResource = getModel().getSourceResource();
if (sourceResource != null) {
String[] segments = sourceResource.getLocation().segments();
for (String segment : segments) {
if (segment.equals(folderName)) {
return sourceResource;
}
}
}
// backup variant if selection is on different artifact type or on
// project level
try {
if (sourceResource != null) {
IProject project = sourceResource.getProject();
Object[] children = contentProvider.getChildren(project);
for (Object object : children) {
IResource r = (IResource) object;
if ((r instanceof IFolder) && r.getName().equals(folderName)) {
return r;
}
}
} else {
return null;
}
} catch (NullPointerException e) {
// project is not selected, return null
}
return null;
}
private void setPreselectedElement() {
projectViewer.getViewer().setSelection(getPreselectedElement(), true);
}