Fix upload beforeUpload, close #3001

components/upload/demo/beforeUpload.md

@@ -12,6 +12,7 @@ import { Upload, Button, Icon, message } from 'antd';
 
 const props = {
   action: '/upload.do',
+  multiple: true,
   beforeUpload(file) {
     const isJPG = file.type === 'image/jpeg';
     if (!isJPG) {

components/upload/index.jsx

@@ -84,8 +84,6 @@ export default class Upload extends React.Component {
   }
 
   onStart = (file) => {
-    if (this.recentUploadStatus === false) return;
-
     let targetItem;
     let nextFileList = this.state.fileList.concat();
     if (file.length > 0) {
@@ -182,11 +180,6 @@ export default class Upload extends React.Component {
     this.handleRemove(targetItem);
   }
 
-  beforeUpload = (file) => {
-    this.recentUploadStatus = this.props.beforeUpload(file);
-    return this.recentUploadStatus;
-  }
-
   handleRemove(file) {
     let fileList = this.removeFile(file);
     if (fileList) {
@@ -242,7 +235,7 @@ export default class Upload extends React.Component {
       onError: this.onError,
       onProgress: this.onProgress,
       onSuccess: this.onSuccess,
-      beforeUpload: this.beforeUpload,
+      beforeUpload: this.props.beforeUpload,
     };
     let uploadList;
     if (this.props.showUploadList) {