多维表格
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const useAttachment = () => {
const { appInfo } = useGlobal()
const getPossibleAttachmentSrc = (item: Record<string, any>) => {
const res: string[] = []
if (item?.data) res.push(item.data)
if (item?.file) res.push(window.URL.createObjectURL(item.file))
if (item?.signedPath) res.push(`${appInfo.value.ncSiteUrl}/${encodeURI(item.signedPath)}`)
if (item?.signedUrl) res.push(item.signedUrl)
if (item?.path) res.push(`${appInfo.value.ncSiteUrl}/${encodeURI(item.path)}`)
if (item?.url) res.push(item.url)
return res
}
const getAttachmentSrc = async (item: Record<string, any>) => {
if (item?.data) {
return item.data
}
const sources = getPossibleAttachmentSrc(item)
for (const source of sources) {
try {
// test if the source is accessible or not
const res = await fetch(source, { method: 'HEAD' })
if (res.ok) {
return source
}
} catch {}
}
// if no source can be fetched, it could be probably blocked by CORS
// return signed url / original url / built url anyway
// which we can extract from the sources array since it's ordered based on priority
return sources[0]
}
const openAttachment = async (item: Record<string, any>) => {
openLink(await getAttachmentSrc(item))
}
return {
getAttachmentSrc,
getPossibleAttachmentSrc,
openAttachment,
}
}
export default useAttachment