@Override
	protected void cancelCallback() {
		if (!isShowing()) {
			return; // nothing to do
		}

		setSelectedFile(initialFile);
		wasCancelled = true;
		super.cancelCallback();
	}
Returns true if the user clicked the "cancel" button on the file chooser.
@return true if the user clicked the "cancel" button on the file chooser
Ghidra/Framework/Docking/src/main/java/docking/widgets/filechooser/GhidraFileChooser.java