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* docs: [el-upload]add example of seting on-exceed to cover the old file * Update packages/components/upload/src/useHandlers.ts Co-authored-by: btea <2356281422@qq.com> * Update docs/examples/upload/limit-cover.vue Co-authored-by: btea <2356281422@qq.com> Co-authored-by: btea <2356281422@qq.com>
140 lines
11 KiB
Markdown
140 lines
11 KiB
Markdown
---
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title: Upload
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lang: en-US
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---
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# Upload
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Upload files by clicking or drag-and-drop
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## Click to upload files
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:::demo Customize upload button type and text using `slot`. Set `limit` and `on-exceed` to limit the maximum number of uploads allowed and specify method when the limit is exceeded. Plus, you can abort removing a file in the `before-remove` hook.
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upload/basic
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:::
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## Cover previous file
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:::demo Set `limit` and `on-exceed` to automatically replace the previous file when select a new file.
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upload/limit-cover
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:::
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## User avatar upload
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Use `before-upload` hook to limit the upload file format and size.
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:::demo
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upload/avatar
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:::
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## Photo Wall
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Use `list-type` to change the fileList style.
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:::demo
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upload/photo-album
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:::
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## Custom file thumbnail
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Use `scoped-slot` to change default thumbnail template.
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:::demo
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upload/custom-thumbnail
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:::
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## FileList with thumbnail
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:::demo
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upload/file-list-with-thumbnail
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:::
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## File list control
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Use `on-change` hook function to control upload file list
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:::demo
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upload/file-list
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:::
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## Drag to upload
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You can drag your file to a certain area to upload it.
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:::demo
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upload/drag-and-drop
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:::
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## Manual upload
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:::demo
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upload/manual
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:::
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## Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------- | ------------------------- | ------- |
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| action | required, request URL | string | — | — |
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| headers | request headers | object | — | — |
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| method | set upload request method | string | post/put/patch | post |
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| multiple | whether uploading multiple files is permitted | boolean | — | — |
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| data | additions options of request | object | — | — |
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| name | key name for uploaded file | string | — | file |
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| with-credentials | whether cookies are sent | boolean | — | false |
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| show-file-list | whether to show the uploaded file list | boolean | — | true |
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| drag | whether to activate drag and drop mode | boolean | — | false |
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| accept | accepted [file types](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-accept), will not work when `thumbnail-mode` is `true` | string | — | — |
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| on-preview | hook function when clicking the uploaded files | function(file) | — | — |
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| on-remove | hook function when files are removed | function(file, fileList) | — | — |
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| on-success | hook function when uploaded successfully | function(response, file, fileList) | — | — |
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| on-error | hook function when some errors occurs | function(err, file, fileList) | — | — |
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| on-progress | hook function when some progress occurs | function(event, file, fileList) | — | — |
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| on-change | hook function when select file or upload file success or upload file fail | function(file, fileList) | — | — |
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| before-upload | hook function before uploading with the file to be uploaded as its parameter. If `false` is returned or a `Promise` is returned and then is rejected, uploading will be aborted | function(file) | — | — |
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| before-remove | hook function before removing a file with the file and file list as its parameters. If `false` is returned or a `Promise` is returned and then is rejected, removing will be aborted. | function(file, fileList) | — | — |
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| thumbnail-mode | whether thumbnail is displayed | boolean | — | false |
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| file-list | default uploaded files, e.g. [{name: 'food.jpg', url: 'https://xxx.cdn.com/xxx.jpg'}] | array | — | [] |
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| list-type | type of fileList | string | text/picture/picture-card | text |
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| auto-upload | whether to auto upload file | boolean | — | true |
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| http-request | override default xhr behavior, allowing you to implement your own upload-file's request | function | — | — |
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| disabled | whether to disable upload | boolean | — | false |
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| limit | maximum number of uploads allowed | number | — | — |
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| on-exceed | hook function when limit is exceeded | function(files, fileList) | — | - |
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## Slots
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| Name | Description |
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| ------- | ---------------------------------- |
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| — | customize default content |
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| trigger | content which triggers file dialog |
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| tip | content of tips |
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| file | content of thumbnail template. |
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## Methods
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| Methods Name | Description | Parameters | Default |
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| ------------ | ------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ----------------------------------------- |
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| clearFiles | clear the file list (this method is not supported in the `before-upload` hook). | UploadStatus[] (UploadStatus = 'ready' \| 'uploading' \| 'success' \| 'fail') | ['ready', 'uploading', 'success', 'fail'] |
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| abort | cancel upload request | ( file: fileList's item ) | |
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| submit | upload the file list manually | — | |
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| handleStart | select the file manually | ( file: files' item) | |
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