| 45 | : REMOTE_PACKAGE_BASE; |
| 46 | var REMOTE_PACKAGE_SIZE = metadata['remote_package_size']; |
| 47 | function fetchRemotePackage(packageName, packageSize, callback, errback) { |
| 48 | if ( |
| 49 | typeof process === 'object' && |
| 50 | typeof process.versions === 'object' && |
| 51 | typeof process.versions.node === 'string' |
| 52 | ) { |
| 53 | require('fs').readFile(packageName, function (err, contents) { |
| 54 | if (err) { |
| 55 | errback(err); |
| 56 | } else { |
| 57 | callback(contents.buffer); |
| 58 | } |
| 59 | }); |
| 60 | return; |
| 61 | } |
| 62 | var xhr = new XMLHttpRequest(); |
| 63 | xhr.open('GET', packageName, true); |
| 64 | xhr.responseType = 'arraybuffer'; |
| 65 | xhr.onprogress = function (event) { |
| 66 | var url = packageName; |
| 67 | var size = packageSize; |
| 68 | if (event.total) size = event.total; |
| 69 | if (event.loaded) { |
| 70 | if (!xhr.addedTotal) { |
| 71 | xhr.addedTotal = true; |
| 72 | if (!Module.dataFileDownloads) Module.dataFileDownloads = {}; |
| 73 | Module.dataFileDownloads[url] = { loaded: event.loaded, total: size }; |
| 74 | } else { |
| 75 | Module.dataFileDownloads[url].loaded = event.loaded; |
| 76 | } |
| 77 | var total = 0; |
| 78 | var loaded = 0; |
| 79 | var num = 0; |
| 80 | for (var download in Module.dataFileDownloads) { |
| 81 | var data = Module.dataFileDownloads[download]; |
| 82 | total += data.total; |
| 83 | loaded += data.loaded; |
| 84 | num++; |
| 85 | } |
| 86 | total = Math.ceil((total * Module.expectedDataFileDownloads) / num); |
| 87 | if (Module['setStatus']) |
| 88 | Module['setStatus'](`Downloading data... (${loaded}/${total})`); |
| 89 | } else if (!Module.dataFileDownloads) { |
| 90 | if (Module['setStatus']) Module['setStatus']('Downloading data...'); |
| 91 | } |
| 92 | }; |
| 93 | xhr.onerror = function (event) { |
| 94 | throw new Error('NetworkError for: ' + packageName); |
| 95 | }; |
| 96 | xhr.onload = function (event) { |
| 97 | if ( |
| 98 | xhr.status == 200 || |
| 99 | xhr.status == 304 || |
| 100 | xhr.status == 206 || |
| 101 | (xhr.status == 0 && xhr.response) |
| 102 | ) { |
| 103 | var packageData = xhr.response; |
| 104 | callback(packageData); |