function getFocusedEditor() {
        if (_currentEditor) {
            
            // See if any inlines have focus
            var focusedInline = getFocusedInlineWidget();
            if (focusedInline) {
                return focusedInline.editor;
            }

            // otherwise, see if full-sized editor has focus
            if (_currentEditor.hasFocus()) {
                return _currentEditor;
            }
        }
        
        return null;
    }
Returns the currently focused editor instance (full-sized OR inline editor).
@returns {Editor}