fix(uploader): beforeUpload should trigger every time before uploading

src/packages/uploader/__tests__/uploader.spec.tsx

@@ -90,7 +90,7 @@ test('should render base uploader other props', () => {
   fireEvent.click(container.querySelectorAll('.close')[0])
   expect(onDelete).toBeCalled()
 
-  const toast2 = container.querySelector('.nut-uploader-preview-img-c')
+  const toast2 = container.querySelector('.nut-uploader-preview-img-c .nut-img')
   expect(toast2).toBeTruthy()
   fireEvent.click(container.querySelectorAll('.nut-uploader-preview-img-c')[0])
   expect(fileItemClick).toBeCalled()

src/packages/uploader/demos/h5/demo1.tsx

@@ -7,10 +7,18 @@ const Demo1 = () => {
   const onStart = () => {
     console.log('start触发')
   }
+  const beforeUpload = async (files: File[]) => {
+    const allowedTypes = ['image/png']
+    const filteredFiles = Array.from(files).filter((file) =>
+      allowedTypes.includes(file.type)
+    )
+    return filteredFiles
+  }
   return (
     <>
       <Cell style={{ flexWrap: 'wrap', paddingBottom: '0px' }}>
         <Uploader
+          beforeUpload={beforeUpload}
           url={uploadUrl}
           onStart={onStart}
           style={{

src/packages/uploader/uploader.tsx

@@ -350,16 +350,16 @@ const InternalUploader: ForwardRefRenderFunction<
   }
 
   const fileChange = (event: React.ChangeEvent<HTMLInputElement>) => {
-    if (disabled) {
-      return
-    }
+    if (disabled) return
+
     const $el = event.target
     const { files } = $el
 
     if (beforeUpload) {
       beforeUpload(new Array<File>().slice.call(files)).then(
         (f: Array<File> | boolean) => {
           const _files: File[] = filterFiles(new Array<File>().slice.call(f))
+          if (!_files.length) $el.value = ''
           readFile(_files)
         }
       )