/** Handler for tree selection. */
void handleTreeSelection() {
IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
ElementSymbol element = null;
if (!selection.isEmpty()) {
ICriteriaStrategy strategy = ElementViewerFactory.getCriteriaStrategy(viewer);
strategy.setTreeViewer(viewer); // make sure this viewer is set before using strategy
if (strategy.isValid(selection.getFirstElement())) {
Object eObj = selection.getFirstElement();
if (eObj instanceof ElementSymbol) {
element = ((ElementSymbol) eObj);
} else {
element = new ElementSymbol(strategy.getRuntimeFullName(eObj), true);
// the viewer model contains EObjects. so the objects in the selection will
// be EObjects. since the EObject is used later on in the QueryCriteriaStrategy.getNode()
// method. save it here.
element.setMetadataID(eObj);
}
}
}
model.selectElementSymbol(element);
}
