lib/deps/binary/readAsBinaryString.js

'use strict';

var arrayBufferToBinaryString = require('./arrayBufferToBinaryString');

// shim for browsers that don't support it
module.exports = function (blob, callback) {
  var reader = new FileReader();
  var hasBinaryString = typeof reader.readAsBinaryString === 'function';
  reader.onloadend = function (e) {
    var result = e.target.result || '';
    if (hasBinaryString) {
      return callback(result);
    }
    callback(arrayBufferToBinaryString(result));
  };
  if (hasBinaryString) {
    reader.readAsBinaryString(blob);
  } else {
    reader.readAsArrayBuffer(blob);
  }
};