Function callback

static/wangEditor/js/wangEditor.js:3968–3974

()

            // 自定义 callback 事件
            function callback() {
                // callback中，设置range为clearElem
                var editor = this;
                if ($clearElem) {
                    editor.restoreSelectionByElem($clearElem.get(0));
                }
            }

            // 执行自定义命令
            editor.customCommand(e, commandFn, callback);