Files
tubestation/testing/mochitest/BrowserTestUtils/content/content-task.js

42 lines
1.1 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/Task.jsm", this);
Cu.import("resource://testing-common/ContentTaskUtils.jsm", this);
addMessageListener("content-task:spawn", function (msg) {
let id = msg.data.id;
let source = msg.data.runnable || "()=>{}";
try {
let runnablestr = `
(() => {
return (${source});
})();`
let runnable = eval(runnablestr);
let iterator = runnable(msg.data.arg);
Task.spawn(iterator).then((val) => {
sendAsyncMessage("content-task:complete", {
id: id,
result: val,
});
}, (e) => {
sendAsyncMessage("content-task:complete", {
id: id,
error: e.toString(),
});
});
} catch (e) {
sendAsyncMessage("content-task:complete", {
id: id,
error: e.toString(),
});
}
});