feat: 增加浏览器中粘贴上传的功能，并增加相应的演示功能

Author: Jeff-Tian

Diff for: src/packages/uploader/__tests__/uploader.spec.tsx

@@ -286,3 +286,46 @@ test('preview component', () => {
   )
   expect(clickFunc).toBeCalled()
 })
+
+test('should handle paste upload', async () => {
+  // arrange
+  const onChange = vi.fn()
+
+  const { container } = render(
+    <Uploader onChange={onChange} enablePasteUpload autoUpload={false} />
+  )
+
+  const file = new File(['image data'], 'pasted-image.png', {
+    type: 'image/png',
+  })
+
+  const pasteEvent = new ClipboardEvent('paste', {
+    bubbles: true,
+    cancelable: true,
+    clipboardData: new DataTransfer(),
+  })
+
+  pasteEvent.clipboardData?.items.add(file)
+
+  // act
+  await import('@testing-library/react').then(({ act: testAct }) =>
+    testAct(async () => {
+      container.firstChild?.dispatchEvent(pasteEvent)
+    })
+  )
+
+  // assert
+  expect(onChange).toHaveBeenCalled()
+
+  const lastCallArgs = onChange.mock.calls[onChange.mock.calls.length - 1][0]
+
+  expect(lastCallArgs).toEqual(
+    expect.arrayContaining([
+      expect.objectContaining({
+        name: 'pasted-image.png',
+        type: 'image/png',
+        status: 'ready',
+      }),
+    ])
+  )
+})

Diff for: src/packages/uploader/demo.tsx

@@ -15,6 +15,7 @@ import Demo11 from './demos/h5/demo11'
 import Demo12 from './demos/h5/demo12'
 import Demo13 from './demos/h5/demo13'
 import Demo14 from './demos/h5/demo14'
+import Demo15 from './demos/h5/demo15'
 
 const UploaderDemo = () => {
   const [translated] = useTranslate({
@@ -32,6 +33,7 @@ const UploaderDemo = () => {
       manualExecution: '选中文件后，通过按钮手动执行上传',
       disabled: '禁用状态',
       customDeleteIcon: '自定义删除icon',
+      enablePasteUpload: '启用粘贴上传',
     },
     'zh-TW': {
       basic: '基础用法',
@@ -47,6 +49,7 @@ const UploaderDemo = () => {
       manualExecution: '選取檔後，通過按鈕手動執行上傳',
       disabled: '禁用狀態',
       customDeleteIcon: '自定義刪除icon',
+      enablePasteUpload: '啟用粘貼上傳',
     },
     'en-US': {
       basic: 'Basic usage',
@@ -63,6 +66,7 @@ const UploaderDemo = () => {
         'After selecting Chinese, manually perform the upload via the button',
       disabled: 'Disabled state',
       customDeleteIcon: 'Custom DeleteIcon',
+      enablePasteUpload: 'Enable paste upload',
     },
   })
 
@@ -97,6 +101,8 @@ const UploaderDemo = () => {
         <Demo13 />
         <h2>{translated.customDeleteIcon}</h2>
         <Demo14 />
+        <h2>{translated.enablePasteUpload}</h2>
+        <Demo15 />
       </div>
     </>
   )

Diff for: src/packages/uploader/demos/h5/demo15.tsx

@@ -0,0 +1,11 @@
+import React from 'react'
+import { Uploader } from '@nutui/nutui-react'
+
+const Demo15 = () => {
+  return (
+    <>
+      <Uploader enablePasteUpload />
+    </>
+  )
+}
+export default Demo15

Diff for: src/packages/uploader/doc.md

@@ -137,6 +137,14 @@ app.post('/upload', upload.single('file'), (req, res) => {
 
 :::
 
+### 浏览器中粘贴图片上传
+
+:::demo
+
+<CodeBlock src='h5/demo15.tsx'></CodeBlock>
+
+:::
+
 ## Uploader
 
 ### Props
@@ -193,6 +201,7 @@ app.post('/upload', upload.single('file'), (req, res) => {
 | url | 文件路径 | `-` |
 | type | 文件类型 | `image/jpeg` |
 | formData | 上传所需的data | `new FormData()` |
+| enablePasteUpload | 是否支持粘贴上传 | `false` |
 
 ### Methods
 

Diff for: src/packages/uploader/uploader.taro.tsx

@@ -418,7 +418,7 @@ const InternalUploader: ForwardRefRenderFunction<
         for (const [key, value] of Object.entries(data)) {
           formData.append(key, value as any)
         }
-        formData.append(name, file.originalFileObj as Blob)
+        formData.append(name, (file.originalFileObj as Blob) ?? file)
         fileItem.name = file.originalFileObj?.name
         fileItem.type = file.originalFileObj?.type
         fileItem.formData = formData
@@ -428,8 +428,22 @@ const InternalUploader: ForwardRefRenderFunction<
       if (preview) {
         fileItem.url = fileType === 'video' ? file.thumbTempFilePath : filepath
       }
-      executeUpload(fileItem, index)
-      results.push(fileItem)
+      if (preview && file.type?.includes('image')) {
+        const reader = new FileReader()
+        reader.onload = (event) => {
+          fileItem.url = event.target?.result as string
+          fileItem.path = event.target?.result as string
+          fileItem.name = (file as unknown as Blob).name
+          executeUpload(fileItem, index)
+          results.push(fileItem)
+          setFileList([...fileList, ...results])
+        }
+
+        reader.readAsDataURL(file as unknown as Blob)
+      } else {
+        executeUpload(fileItem, index)
+        results.push(fileItem)
+      }
     })
     setFileList([...fileList, ...results])
   }

Diff for: src/packages/uploader/uploader.tsx

@@ -5,6 +5,7 @@ import React, {
   PropsWithChildren,
   useRef,
   useEffect,
+  useCallback,
 } from 'react'
 import classNames from 'classnames'
 import { Photograph, Failure } from '@nutui/icons-react'
@@ -70,6 +71,7 @@ export interface UploaderProps extends BasicComponent {
   beforeXhrUpload?: (xhr: XMLHttpRequest, options: any) => void
   beforeDelete?: (file: FileItem, files: FileItem[]) => boolean
   onFileItemClick?: (file: FileItem, index: number) => void
+  enablePasteUpload?: boolean
 }
 
 const defaultProps = {
@@ -99,6 +101,7 @@ const defaultProps = {
   beforeDelete: (file: FileItem, files: FileItem[]) => {
     return true
   },
+  enablePasteUpload: false,
 } as UploaderProps
 
 const InternalUploader: ForwardRefRenderFunction<
@@ -148,6 +151,7 @@ const InternalUploader: ForwardRefRenderFunction<
     beforeUpload,
     beforeXhrUpload,
     beforeDelete,
+    enablePasteUpload,
     ...restProps
   } = { ...defaultProps, ...props }
   const [fileList, setFileList] = usePropsValue({
@@ -307,7 +311,7 @@ const InternalUploader: ForwardRefRenderFunction<
         const reader = new FileReader()
         reader.onload = (event: ProgressEvent<FileReader>) => {
           fileItem.url = (event.target as FileReader).result as string
-          // setFileList([...fileList, fileItem])
+          setFileList([...fileList, fileItem])
           results.push(fileItem)
         }
         reader.readAsDataURL(file)
@@ -383,6 +387,85 @@ const InternalUploader: ForwardRefRenderFunction<
     onFileItemClick?.(file, index)
   }
 
+  const handlePaste = useCallback(
+    (event: ClipboardEvent) => {
+      if (!enablePasteUpload || disabled) return
+
+      const clipboardData = event.clipboardData
+      if (!clipboardData) return
+
+      const files: File[] = []
+
+      if (clipboardData.items && clipboardData.items.length) {
+        for (let i = 0; i < clipboardData.items.length; i++) {
+          const item = clipboardData.items[i]
+          if (item.kind === 'file' && item.type.startsWith('image/')) {
+            const file = item.getAsFile()
+            if (file) {
+              files.push(file)
+            }
+          }
+        }
+      } else if (clipboardData.files && clipboardData.files.length) {
+        for (let i = 0; i < clipboardData.files.length; i++) {
+          const file = clipboardData.files[i]
+          if (file.type.startsWith('image/')) {
+            files.push(file)
+          }
+        }
+      }
+
+      if (files.length) {
+        if (beforeUpload) {
+          beforeUpload(files).then((f: Array<File> | boolean) => {
+            if (typeof f === 'boolean') return
+
+            const _files = filterFiles(new Array<File>().slice.call(f))
+            if (_files.length) {
+              readFile(_files)
+              onChange?.([
+                ...fileList,
+                ...files.map((file) => ({
+                  name: file.name,
+                  type: file.type,
+                  status: 'ready',
+                })),
+              ])
+            }
+          })
+        } else {
+          const _files = filterFiles(new Array<File>().slice.call(files))
+          if (_files.length) {
+            readFile(_files)
+            onChange?.([
+              ...fileList,
+              ..._files.map((file) => ({
+                name: file.name,
+                type: file.type,
+                status: 'ready',
+              })),
+            ])
+          }
+        }
+      }
+    },
+    [enablePasteUpload, disabled, beforeUpload, filterFiles, readFile, onChange]
+  )
+
+  useEffect(() => {
+    fileListRef.current = fileList
+
+    if (enablePasteUpload) {
+      document.addEventListener('paste', handlePaste)
+    }
+
+    return () => {
+      if (enablePasteUpload) {
+        document.removeEventListener('paste', handlePaste)
+      }
+    }
+  }, [fileList, enablePasteUpload, handlePaste])
+
   return (
     <div className={classes} {...restProps}>
       {(children || previewType === 'list') && (