@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, _ref) {
  let {
    onSuccess
  } = _ref;
  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);
  });
}