musescore-downloader/src/utils.ts

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import FileSaver from 'file-saver/dist/FileSaver.js'
export const saveAs: typeof import('file-saver').saveAs = FileSaver.saveAs
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export const getIndexPath = (id: number): string => {
const idStr = String(id)
// 获取最后三位,倒序排列
// x, y, z are the reversed last digits of the score id. Example: id 123456789, x = 9, y = 8, z = 7
// https://developers.musescore.com/#/file-urls
// "5449062" -> ["2", "6", "0"]
const indexN = idStr.split('').reverse().slice(0, 3)
return indexN.join('/')
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}
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export const waitForDocumentLoaded = (): Promise<void> => {
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if (document.readyState !== 'complete') {
return new Promise(resolve => {
document.addEventListener('readystatechange', () => {
if (document.readyState === 'complete') {
resolve()
}
}, { once: true })
})
} else {
return Promise.resolve()
}
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}