@Override
	public int getFileCount() {
		if (selectedFiles == null) {
			return 0;
		}
		return selectedFiles.size();
	}
A context that understands files that live in a {@link Project}.  Most of the clients of
this context will use its notion of selected {@link DomainFile}s and folders.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/datatable/ProjectDataContext.java