public void onSelectionChange(SelectionChangeEvent event) {
if (rootSelectionModel.getSelectedObject() != null) {
app.deselectOthers(app.getGroupTreeView(), rootSelectionModel);
+ app.getGroupTreeView().addStyleName("cellTreeWidget-selectedTree");
app.showFiles(new HashSet<File>());
}
+ else
+ app.getGroupTreeView().removeStyleName("cellTreeWidget-selectedTree");
}
});