docs(#3151): 增加粘贴上传说明仅在 h5 端生效

Author: Jeff-Tian

src/packages/uploader/doc.md

@@ -203,7 +203,7 @@ 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` |
+| enablePasteUpload | 是否支持粘贴上传，仅在浏览器端支持，在其他设备端，即使开启也不生效。 | `false` |
 
 ### Methods
 

src/packages/uploader/uploader.taro.tsx

@@ -528,33 +528,23 @@ const InternalUploader: ForwardRefRenderFunction<
     (event: ClipboardEvent) => {
       if (!enablePasteUpload || disabled) return
 
-      const clipboardData = event.clipboardData
-      if (!clipboardData) return
-
+      const clipboardData = event.clipboardData ?? (window as any).clipboardData
+      const items = clipboardData?.items ?? []
       const files: TFileType[] = []
 
-      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({
-                originalFileObj: file,
-                size: file.size,
-                path: '',
-                tempFilePath: '',
-                type: file.type,
-                fileType: file.type,
-              })
-            }
-          }
-        }
-      } 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)
+      for (let i = 0; i < items.length; i++) {
+        const item = items[i]
+        if (item.kind === 'file' && item.type.startsWith('image/')) {
+          const file = item.getAsFile()
+          if (file) {
+            files.push({
+              originalFileObj: file,
+              size: file.size,
+              path: '',
+              tempFilePath: '',
+              type: file.type,
+              fileType: file.type,
+            })
           }
         }
       }