element-plus/docs/examples/upload/avatar.vue
C.Y.Kun 575835a2f8
docs(components): use script setup replace defineComponent (#4849)
* docs(components): use `script setup` replace `defineComponent`

* docs(components): use setup sugar simplify `checkbox` demo

* docs(components): use setup sugar simplify `collapse` demo

* docs(components): use setup sugar simplify `color-picker` demo

* docs(components): use setup sugar simplify `config-provider` demo

* docs(components): use setup sugar simplify `container` demo

* docs(components): use setup sugar simplify `date-picker` demo

* docs(components): use setup sugar simplify `datetime-picker` demo

* docs(components): use setup sugar simplify `dialog` demo

* docs(components): use setup sugar simplify `drawer` demo

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* docs(components): Escape character

* docs(components): use setup sugar simplify `tree-v2` demo

* docs(components): use setup sugar simplify `upload` demo

* docs(components): use `ref` to replace `reactive`

* docs(ci): use `playground` to replace `codepen`

* docs(ci): change icon from `codepen`  to `ep`

* docs(components): `sass` to `css`

* fix(components): add button CssVar

* docs(ci): change `Edit in Codepen.io` to `Edit in Playground`

* docs(ci): add vitepress i18
2021-12-21 15:51:33 +08:00

69 lines
1.6 KiB
Vue

<template>
<el-upload
class="avatar-uploader"
action="https://jsonplaceholder.typicode.com/posts/"
:show-file-list="false"
:on-success="handleAvatarSuccess"
:before-upload="beforeAvatarUpload"
>
<img v-if="imageUrl" :src="imageUrl" class="avatar" />
<el-icon v-else class="avatar-uploader-icon"><plus /></el-icon>
</el-upload>
</template>
<script lang="ts" setup>
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
import { Plus } from '@element-plus/icons-vue'
import type {
UploadFile,
ElUploadProgressEvent,
ElFile,
} from 'element-plus/es/components/upload/src/upload.type'
const imageUrl = ref('')
const handleAvatarSuccess = (res: ElUploadProgressEvent, file: UploadFile) => {
imageUrl.value = URL.createObjectURL(file.raw)
}
const beforeAvatarUpload = (file: ElFile) => {
const isJPG = file.type === 'image/jpeg'
const isLt2M = file.size / 1024 / 1024 < 2
if (!isJPG) {
ElMessage.error('Avatar picture must be JPG format!')
}
if (!isLt2M) {
ElMessage.error('Avatar picture size can not exceed 2MB!')
}
return isJPG && isLt2M
}
</script>
<style>
.avatar-uploader .el-upload {
border: 1px dashed #d9d9d9;
border-radius: 6px;
cursor: pointer;
position: relative;
overflow: hidden;
}
.avatar-uploader .el-upload:hover {
border-color: #409eff;
}
.avatar-uploader-icon {
font-size: 28px;
color: #8c939d;
width: 178px;
height: 178px;
text-align: center;
}
.avatar-uploader-icon svg {
margin-top: 74px; /* (178px - 28px) / 2 - 1px */
}
.avatar {
width: 178px;
height: 178px;
display: block;
}
</style>