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46 lines
1.2 KiB
46 lines
1.2 KiB
import { target, targetable } from '@github/catalyst/lib/targetable'
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export default targetable(class extends HTMLElement {
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static [target.static] = ['defaultButton', 'loadingButton']
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connectedCallback () {
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this.addEventListener('click', () => this.downloadFiles())
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}
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toggleState () {
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this.defaultButton?.classList?.toggle('hidden')
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this.loadingButton?.classList?.toggle('hidden')
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}
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downloadFiles () {
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if (!this.dataset.src) return
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this.toggleState()
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fetch(this.dataset.src).then((response) => response.json()).then((urls) => {
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const fileRequests = urls.map((url) => {
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return () => {
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return fetch(url).then(async (resp) => {
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const blobUrl = URL.createObjectURL(await resp.blob())
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const link = document.createElement('a')
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link.href = blobUrl
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link.setAttribute('download', decodeURI(resp.headers.get('content-disposition').split('"')[1]))
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link.click()
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URL.revokeObjectURL(url)
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})
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}
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})
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fileRequests.reduce(
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(prevPromise, request) => prevPromise.then(() => request()),
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Promise.resolve()
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)
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this.toggleState()
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})
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}
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})
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