var _min_toolbars=[
    [ 'undo', 'redo'
        ,'|', 'indent',"bold","italic","underline", 'strikethrough'
        ,"|","insertorderedlist","insertunorderedlist"
        ,'|','paragraph','fontfamily','fontsize', 'justifyleft',  'justifycenter','justifyright', 'justifyjustify'
        ,"|",'removeformat','forecolor','backcolor'
        ,'|','date','time',"fullscreen"
        ,'|','insertimage'
    ]
]
var empty_toolbars=[];
function _addCustomButton() {
    UE.registerUI('插入变量',function(editor,uiName){
        //注册按钮执行时的command命令,用uiName作为command名字，使用命令默认就会带有回退操作
        editor.registerCommand(uiName,{
            execCommand:function(cmdName,value){
                this.execCommand('insertHTML',value);
            }
        });
        var selectOptions = [];
        selectOptions.push({label:'文件编号',value:'${_文件编号}'});
        selectOptions.push({label:'发送人',value:'${_发送人}'});
        selectOptions.push({label:'部门',value:'${_部门}'});
        selectOptions.push({label:'发送时间',value:'${_发送时间}'});
        selectOptions.push({label:'自定义变量',value:'${}'});
        var items = [];
        for(var i=0;i<selectOptions.length;i++){
            var so = selectOptions[i];
            items.push({
                label:so.label
                ,value:so.value
                ,renderLabelHtml:function () {
                    //这个是希望每个条目的字体是不同的
                    return '<div class="edui-label %%-label" style="line-height:2;font-size:' +
                        this.value + 'px;">' + (this.label || '') + '</div>';
                }
            });
        }


        //创建下来框
        var combox = new UE.ui.Combox({
            //需要指定当前的编辑器实例
            editor:editor,
            //添加条目
            items:items,
            //当选中时要做的事情
            onselect:function (t, index) {
                //拿到选中条目的值
                editor.execCommand(uiName, this.items[index].value);
            },
            //提示
            title:uiName,
            //当编辑器没有焦点时，combox默认显示的内容
            initValue:uiName
        });


        return combox;
    });
}

function checkVar(value){
    var $findRegExp = /\${([^\$}]*?)}/gm;
    var result;
    while(result=$findRegExp.exec(value)){
        var variableName = result[1];
        if(variableName==''){
            return "请填写变量名"
        }
        if(variableName.length>20){
            return "请确认变量表达式填写正确"
        }
    }
     return true;
}