Opentype Font Loader

done-opentype.js

var opentype = require('opentype.js'),
  loader = require("@loader");

exports.fetch = function( load ) {
  if (typeof XMLHttpRequest !== 'function') {
    load.metadata.build = false;
    return loader.fetch(load);
  }

  return new Promise(function( resolve, reject ) {
    var request = new XMLHttpRequest();
    request.open('get', load.address, true);
    request.responseType = 'arraybuffer';
    request.onload = function() {
      if (request.status !== 200) {
        reject('Font could not be loaded: ' + request.statusText);
      } else {
        resolve(request.response);
      }
    };

    request.send();
  });
};

var translate = loader.translate;

loader.translate = function( load ) {
  if (load.source instanceof ArrayBuffer) {
    load.metadata.deps = [];

    load.metadata.execute = function() {
      return opentype.parse(load.source);
    };
    load.metadata.format = 'otf';
  } else {
    return translate.apply(this, arguments);
  }
};

exports.build = false;
exports.includeInBuild = true;