constructor($note, options) {
    this.$note = $note;

    this.memos = {};
    this.modules = {};
    this.layoutInfo = {};
    this.options = $.extend(true, {}, options);

    // init ui with options
    $.summernote.ui = $.summernote.ui_template(this.options);
    this.ui = $.summernote.ui;

    this.initialize();
  }
@param {jQuery} $note
@param {Object} options