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/* 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/. */
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1273251
function promiseEvent(target, event) {
return new Promise(resolve => {
target.addEventListener(event, resolve, {capture: true, once: true});
});
}
add_task(async function() {
let principal = Services.scriptSecurityManager
.createContentPrincipalFromOrigin("http://example.com/");
let webnav = Services.appShell.createWindowlessBrowser(false);
let docShell = webnav.docShell;
docShell.createAboutBlankContentViewer(principal, principal);
let window = webnav.document.defaultView;
let sandbox = Cu.Sandbox(window, {sandboxPrototype: window});
function sandboxContent() {
window.onload = function SandboxOnLoad() {};
window.addEventListener("FromTest", () => {
window.dispatchEvent(new CustomEvent("FromSandbox"));
}, true);
}
Cu.evalInSandbox(`(${sandboxContent})()`, sandbox);
let fromTestPromise = promiseEvent(window, "FromTest");
let fromSandboxPromise = promiseEvent(window, "FromSandbox");
equal(typeof window.onload, "function",
"window.onload should contain sandbox event listener");
equal(window.onload.name, "SandboxOnLoad",
"window.onload have the correct function name");
info("Dispatch FromTest event");
window.dispatchEvent(new window.CustomEvent("FromTest"));
await fromTestPromise;
info("Got event from test");
await fromSandboxPromise;
info("Got response from sandbox");
window.addEventListener("FromSandbox", () => {
ok(false, "Got unexpected reply from sandbox");
}, true);
info("Nuke sandbox");
Cu.nukeSandbox(sandbox);
info("Dispatch FromTest event");
fromTestPromise = promiseEvent(window, "FromTest");
window.dispatchEvent(new window.CustomEvent("FromTest"));
await fromTestPromise;
info("Got event from test");
// Force cycle collection, which should cause our callback reference
// to be dropped, and dredge up potential issues there.
Cu.forceGC();
Cu.forceCC();
ok(Cu.isDeadWrapper(window.onload),
"window.onload should contain a dead wrapper after sandbox is nuked");
info("Dispatch FromTest event");
fromTestPromise = promiseEvent(window, "FromTest");
window.dispatchEvent(new window.CustomEvent("FromTest"));
await fromTestPromise;
info("Got event from test");
let listeners = Services.els.getListenerInfoFor(window);
ok(!listeners.some(info => info.type == "FromTest"),
"No 'FromTest' listeners returned for nuked sandbox");
webnav.close();
});
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