+++ /dev/null
-import RegisterLoader from 'es-module-loader/core/register-loader.js';
-
-import { baseURI, global, isBrowser } from 'es-module-loader/core/common.js';
-import { resolveIfNotPlain } from 'es-module-loader/core/resolve.js';
-
-var loader;
-
-// <script type="module"> support
-var anonSources = {};
-if (typeof document != 'undefined' && document.getElementsByTagName) {
- var handleError = function(err) {
- // dispatch an error event so that we can display in errors in browsers
- // that don't yet support unhandledrejection
- if (window.onunhandledrejection === undefined) {
- try {
- var evt = new Event('error');
- } catch (_eventError) {
- var evt = document.createEvent('Event');
- evt.initEvent('error', true, true);
- }
- evt.message = err.message;
- if (err.fileName) {
- evt.filename = err.fileName;
- evt.lineno = err.lineNumber;
- evt.colno = err.columnNumber;
- } else if (err.sourceURL) {
- evt.filename = err.sourceURL;
- evt.lineno = err.line;
- evt.colno = err.column;
- }
- evt.error = err;
- window.dispatchEvent(evt);
- }
-
- // throw so it still shows up in the console
- throw err;
- }
-
- var ready = function() {
- document.removeEventListener('DOMContentLoaded', ready, false );
-
- var anonCnt = 0;
-
- var scripts = document.getElementsByTagName('script');
- for (var i = 0; i < scripts.length; i++) {
- var script = scripts[i];
- if (script.type == 'module' && !script.loaded) {
- script.loaded = true;
- if (script.src) {
- loader.import(script.src).catch(handleError);
- }
- // anonymous modules supported via a custom naming scheme and registry
- else {
- var uri = './<anon' + ++anonCnt + '>.js';
- if (script.id !== ""){
- uri = "./" + script.id;
- }
-
- var anonName = resolveIfNotPlain(uri, baseURI);
- anonSources[anonName] = script.innerHTML;
- loader.import(anonName).catch(handleError);
- }
- }
- }
- }
-
- // simple DOM ready
- if (document.readyState !== 'loading')
- setTimeout(ready);
- else
- document.addEventListener('DOMContentLoaded', ready, false);
-}
-
-function BrowserESModuleLoader(baseKey) {
- if (baseKey)
- this.baseKey = resolveIfNotPlain(baseKey, baseURI) || resolveIfNotPlain('./' + baseKey, baseURI);
-
- RegisterLoader.call(this);
-
- var loader = this;
-
- // ensure System.register is available
- global.System = global.System || {};
- if (typeof global.System.register == 'function')
- var prevRegister = global.System.register;
- global.System.register = function() {
- loader.register.apply(loader, arguments);
- if (prevRegister)
- prevRegister.apply(this, arguments);
- };
-}
-BrowserESModuleLoader.prototype = Object.create(RegisterLoader.prototype);
-
-// normalize is never given a relative name like "./x", that part is already handled
-BrowserESModuleLoader.prototype[RegisterLoader.resolve] = function(key, parent) {
- var resolved = RegisterLoader.prototype[RegisterLoader.resolve].call(this, key, parent || this.baseKey) || key;
- if (!resolved)
- throw new RangeError('ES module loader does not resolve plain module names, resolving "' + key + '" to ' + parent);
-
- return resolved;
-};
-
-function xhrFetch(url, resolve, reject) {
- var xhr = new XMLHttpRequest();
- var load = function(source) {
- resolve(xhr.responseText);
- }
- var error = function() {
- reject(new Error('XHR error' + (xhr.status ? ' (' + xhr.status + (xhr.statusText ? ' ' + xhr.statusText : '') + ')' : '') + ' loading ' + url));
- }
-
- xhr.onreadystatechange = function () {
- if (xhr.readyState === 4) {
- // in Chrome on file:/// URLs, status is 0
- if (xhr.status == 0) {
- if (xhr.responseText) {
- load();
- }
- else {
- // when responseText is empty, wait for load or error event
- // to inform if it is a 404 or empty file
- xhr.addEventListener('error', error);
- xhr.addEventListener('load', load);
- }
- }
- else if (xhr.status === 200) {
- load();
- }
- else {
- error();
- }
- }
- };
- xhr.open("GET", url, true);
- xhr.send(null);
-}
-
-var WorkerPool = function (script, size) {
- var current = document.currentScript;
- // IE doesn't support currentScript
- if (!current) {
- // Find an entry with out basename
- var scripts = document.getElementsByTagName('script');
- for (var i = 0; i < scripts.length; i++) {
- if (scripts[i].src.indexOf("browser-es-module-loader.js") !== -1) {
- current = scripts[i];
- break;
- }
- }
- if (!current)
- throw Error("Could not find own <script> element");
- }
- script = current.src.substr(0, current.src.lastIndexOf("/")) + "/" + script;
- this._workers = new Array(size);
- this._ind = 0;
- this._size = size;
- this._jobs = 0;
- this.onmessage = undefined;
- this._stopTimeout = undefined;
- for (var i = 0; i < size; i++) {
- var wrkr = new Worker(script);
- wrkr._count = 0;
- wrkr._ind = i;
- wrkr.onmessage = this._onmessage.bind(this, wrkr);
- wrkr.onerror = this._onerror.bind(this);
- this._workers[i] = wrkr;
- }
-
- this._checkJobs();
-};
-WorkerPool.prototype = {
- postMessage: function (msg) {
- if (this._stopTimeout !== undefined) {
- clearTimeout(this._stopTimeout);
- this._stopTimeout = undefined;
- }
- var wrkr = this._workers[this._ind % this._size];
- wrkr._count++;
- this._jobs++;
- wrkr.postMessage(msg);
- this._ind++;
- },
-
- _onmessage: function (wrkr, evt) {
- wrkr._count--;
- this._jobs--;
- this.onmessage(evt, wrkr);
- this._checkJobs();
- },
-
- _onerror: function(err) {
- try {
- var evt = new Event('error');
- } catch (_eventError) {
- var evt = document.createEvent('Event');
- evt.initEvent('error', true, true);
- }
- evt.message = err.message;
- evt.filename = err.filename;
- evt.lineno = err.lineno;
- evt.colno = err.colno;
- evt.error = err.error;
- window.dispatchEvent(evt);
- },
-
- _checkJobs: function () {
- if (this._jobs === 0 && this._stopTimeout === undefined) {
- // wait for 2s of inactivity before stopping (that should be enough for local loading)
- this._stopTimeout = setTimeout(this._stop.bind(this), 2000);
- }
- },
-
- _stop: function () {
- this._workers.forEach(function(wrkr) {
- wrkr.terminate();
- });
- }
-};
-
-var promiseMap = new Map();
-var babelWorker = new WorkerPool('babel-worker.js', 3);
-babelWorker.onmessage = function (evt) {
- var promFuncs = promiseMap.get(evt.data.key);
- promFuncs.resolve(evt.data);
- promiseMap.delete(evt.data.key);
-};
-
-// instantiate just needs to run System.register
-// so we fetch the source, convert into the Babel System module format, then evaluate it
-BrowserESModuleLoader.prototype[RegisterLoader.instantiate] = function(key, processAnonRegister) {
- var loader = this;
-
- // load as ES with Babel converting into System.register
- return new Promise(function(resolve, reject) {
- // anonymous module
- if (anonSources[key]) {
- resolve(anonSources[key])
- anonSources[key] = undefined;
- }
- // otherwise we fetch
- else {
- xhrFetch(key, resolve, reject);
- }
- })
- .then(function(source) {
- // check our cache first
- var cacheEntry = localStorage.getItem(key);
- if (cacheEntry) {
- cacheEntry = JSON.parse(cacheEntry);
- // TODO: store a hash instead
- if (cacheEntry.source === source) {
- return Promise.resolve({key: key, code: cacheEntry.code, source: cacheEntry.source});
- }
- }
- return new Promise(function (resolve, reject) {
- promiseMap.set(key, {resolve: resolve, reject: reject});
- babelWorker.postMessage({key: key, source: source});
- });
- }).then(function (data) {
- // evaluate without require, exports and module variables
- // we leave module in for now to allow module.require access
- try {
- var cacheEntry = JSON.stringify({source: data.source, code: data.code});
- localStorage.setItem(key, cacheEntry);
- } catch (e) {
- if (window.console) {
- window.console.warn('Unable to cache transpiled version of ' + key + ': ' + e);
- }
- }
- (0, eval)(data.code + '\n//# sourceURL=' + data.key + '!transpiled');
- processAnonRegister();
- });
-};
-
-// create a default loader instance in the browser
-if (isBrowser)
- loader = new BrowserESModuleLoader();
-
-export default BrowserESModuleLoader;
projects / mirror_novnc.git / blobdiff