133 lines
3.1 KiB
Vue
133 lines
3.1 KiB
Vue
<template>
|
|
<div
|
|
class="container"
|
|
@dragover="handleDragOver"
|
|
@dragleave="handleDragLeave"
|
|
@drop="handleDrop"
|
|
>
|
|
<slot></slot>
|
|
<miao-mask v-model:show="showMask"></miao-mask>
|
|
</div>
|
|
</template>
|
|
|
|
<script setup lang="ts">
|
|
import { ref } from 'vue'
|
|
import miaoMask from './miaoMask.vue'
|
|
import VirtualDirectory, { VirtualFile } from '@/class/VirtualDirectory'
|
|
import config from '@/config'
|
|
import useDataBus from '@/hooks/useDataBus'
|
|
|
|
const props = defineProps({
|
|
disable: {
|
|
type: Boolean,
|
|
default: false
|
|
}
|
|
})
|
|
|
|
const dataBus = useDataBus()
|
|
|
|
const { uploadSizeLimit } = config
|
|
|
|
const emit = defineEmits<{
|
|
onFiles: [files: File[]]
|
|
onVirtualFiles: [vFiles: VirtualFile[]]
|
|
onVirtualDirectory: [vDirectory: VirtualDirectory[]]
|
|
}>()
|
|
|
|
const showMask = ref<number>(0)
|
|
|
|
// File類型的數據可能爲文件夾，通過FileReader進行判斷
|
|
const isFile = (file: File) =>
|
|
new Promise((resolve) => {
|
|
const reader = new FileReader()
|
|
reader.onload = () => {
|
|
resolve(true)
|
|
reader.abort()
|
|
}
|
|
reader.onerror = () => {
|
|
resolve(false)
|
|
reader.abort()
|
|
}
|
|
reader.readAsText(file)
|
|
})
|
|
|
|
/**
|
|
* 只保留文件，移去文件夹
|
|
* @param {File[]} files
|
|
*/
|
|
const removeDirectory = async (files: File[]) => {
|
|
let index = 0
|
|
while (index < files.length) {
|
|
const currentFile = files[index]
|
|
const _isFile = await isFile(currentFile)
|
|
if (_isFile) {
|
|
index += 1
|
|
continue
|
|
} else {
|
|
files.splice(index, 1)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
const check = (event: DragEvent) => {
|
|
return (
|
|
[
|
|
...(event.dataTransfer?.types?.filter((v) => v === 'Files') ?? []),
|
|
...(dataBus.get('dragData_vFiles') ?? []),
|
|
...(dataBus.get('dragData_vDirectory') ?? [])
|
|
].length !== 0
|
|
)
|
|
}
|
|
|
|
const handleDragOver = async (event: DragEvent) => {
|
|
if (props.disable || check(event) === false) {
|
|
return
|
|
}
|
|
event.preventDefault()
|
|
if (showMask.value === 1) {
|
|
return
|
|
}
|
|
showMask.value = 1
|
|
}
|
|
|
|
const handleDragLeave = async () => {
|
|
showMask.value = 0
|
|
}
|
|
|
|
const handleDrop = async (event: DragEvent) => {
|
|
if (props.disable || check(event) === false) {
|
|
return
|
|
}
|
|
showMask.value = 0
|
|
event.preventDefault()
|
|
event.stopPropagation()
|
|
// todo: uploadSize的限制不應該在這裏
|
|
const files = [...(event.dataTransfer?.files ?? [])].filter(
|
|
(file) => file.size < uploadSizeLimit
|
|
)
|
|
await removeDirectory(files)
|
|
const virtualFiles: VirtualFile[] = dataBus.pop('dragData_vFiles')
|
|
const virtualDirectory: VirtualDirectory[] = dataBus.pop(
|
|
'dragData_vDirectory'
|
|
)
|
|
// console.log({ virtualDirectory, virtualFiles })
|
|
if (files && files.length) {
|
|
emit('onFiles', files)
|
|
}
|
|
if (virtualFiles && virtualFiles.length) {
|
|
emit('onVirtualFiles', virtualFiles)
|
|
}
|
|
if (virtualDirectory && virtualDirectory.length) {
|
|
emit('onVirtualDirectory', virtualDirectory)
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
.container {
|
|
width: 100%;
|
|
height: 100%;
|
|
position: relative;
|
|
}
|
|
</style>
|