电子手签加入非空校验

package.json

 {
   "name": "panda-xform",
-  "version": "6.10.63",
-  "description": "6.10.63 坐标选择增加爆管分析逻辑",
+  "version": "6.10.64",
+  "description": "6.10.64 电子手签加入非空校验",
   "keywords": [
     "panda-xform"
   ],

src/core/widgets/advanced/Signature/index.js

@@ -3,7 +3,7 @@ import ReactSignatureCanvas from 'react-signature-canvas'
 import Drag from '../../../components/Drag'
 import { UploadFileReturnUrl, getUserSignature, SaveUserSignature } from '../../../../apis/process'
 import styles from './index.less'
-import { Button, Checkbox } from 'antd'
+import { Button, Checkbox, message } from 'antd'
 import moment from 'moment'
 const Signature = (props) => {
 
@@ -26,6 +26,10 @@ const Signature = (props) => {
     if (disabled) {
       setVisible(false)
     } else {
+      if(canvasRef.current.isEmpty()){
+        message.warn('请签名后再保存')
+        return
+      }
       if (addons) {
         const dataUrl = canvasRef.current.toDataURL(); // 获取 Base64 编码的字符串
         const byteString = atob(dataUrl.split(',')[1]); // 将 Base64 编码的字符串转换为字节数组