/
index.js
30 lines (29 loc) · 1.24 KB
/
index.js
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const webkitGetAsEntryApi = require('./utils/webkitGetAsEntryApi/index')
const fallbackApi = require('./utils/fallbackApi')
/**
* Returns a promise that resolves to the array of dropped files (if a folder is
* dropped, and browser supports folder parsing - promise resolves to the flat
* array of all files in all directories).
* Each file has .relativePath prop appended to it (e.g. "/docs/Prague/ticket_from_prague_to_ufa.pdf")
* if browser supports it. Otherwise it's undefined.
*
* @param {DataTransfer} dataTransfer
* @param {Function} logDropError - a function that's called every time some
* folder or some file error out (e.g. because of the folder name being too long
* on Windows). Notice that resulting promise will always be resolved anyway.
*
* @returns {Promise} - Array<File>
*/
module.exports = async function getDroppedFiles (dataTransfer, { logDropError = () => {} } = {}) {
// Get all files from all subdirs. Works (at least) in Chrome, Mozilla, and Safari
try {
const accumulator = []
for await (const file of webkitGetAsEntryApi(dataTransfer, logDropError)) {
accumulator.push(file)
}
return accumulator
// Otherwise just return all first-order files
} catch {
return fallbackApi(dataTransfer)
}
}