@uppy/utils/lib/getDroppedFiles/utils/webkitGetAsEntryApi/getFilesAndDirectoriesFromDirectory.js

Shared utility functions for Uppy Core and plugins maintained by the Uppy team.

/**
 * Recursive function, calls the original callback() when the directory is entirely parsed.
 */
export default function getFilesAndDirectoriesFromDirectory(directoryReader, oldEntries, logDropError, { onSuccess }) {
    directoryReader.readEntries((entries) => {
        const newEntries = [...oldEntries, ...entries];
        // According to the FileSystem API spec, getFilesAndDirectoriesFromDirectory()
        // must be called until it calls the onSuccess with an empty array.
        if (entries.length) {
            queueMicrotask(() => {
                getFilesAndDirectoriesFromDirectory(directoryReader, newEntries, logDropError, { onSuccess });
            });
            // Done iterating this particular directory
        }
        else {
            onSuccess(newEntries);
        }
    }, 
    // Make sure we resolve on error anyway, it's fine if only one directory couldn't be parsed!
    (error) => {
        logDropError(error);
        onSuccess(oldEntries);
    });
}