From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- devtools/server/service-worker-child.js | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 devtools/server/service-worker-child.js (limited to 'devtools/server/service-worker-child.js') diff --git a/devtools/server/service-worker-child.js b/devtools/server/service-worker-child.js new file mode 100644 index 000000000..e3a27ab10 --- /dev/null +++ b/devtools/server/service-worker-child.js @@ -0,0 +1,32 @@ +/* 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"; + +let { classes: Cc, interfaces: Ci, utils: Cu } = Components; +let swm = Cc["@mozilla.org/serviceworkers/manager;1"]. + getService(Ci.nsIServiceWorkerManager); + +addMessageListener("serviceWorkerRegistration:start", message => { + let { data } = message; + let array = swm.getAllRegistrations(); + + // Find the service worker registration with the desired scope. + for (let i = 0; i < array.length; i++) { + let registration = + array.queryElementAt(i, Ci.nsIServiceWorkerRegistrationInfo); + // XXX: In some rare cases, `registration.activeWorker` can be null for a + // brief moment (e.g. while the service worker is first installing, or if + // there was an unhandled exception during install that will cause the + // registration to be removed). We can't do much about it here, simply + // ignore these cases. + if (registration.scope === data.scope && registration.activeWorker) { + // Briefly attaching a debugger to the active service worker will cause + // it to start running. + registration.activeWorker.attachDebugger(); + registration.activeWorker.detachDebugger(); + return; + } + } +}); -- cgit v1.2.3