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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /devtools/client/responsive.html/utils/message.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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1 files changed, 38 insertions, 0 deletions
diff --git a/devtools/client/responsive.html/utils/message.js b/devtools/client/responsive.html/utils/message.js
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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/. */
+
+"use strict";
+
+const promise = require("promise");
+
+const REQUEST_DONE_SUFFIX = ":done";
+
+function wait(win, type) {
+ let deferred = promise.defer();
+
+ let onMessage = event => {
+ if (event.data.type !== type) {
+ return;
+ }
+ win.removeEventListener("message", onMessage);
+ deferred.resolve();
+ };
+ win.addEventListener("message", onMessage);
+
+ return deferred.promise;
+}
+
+function post(win, type) {
+ win.postMessage({ type }, "*");
+}
+
+function request(win, type) {
+ let done = wait(win, type + REQUEST_DONE_SUFFIX);
+ post(win, type);
+ return done;
+}
+
+exports.wait = wait;
+exports.post = post;
+exports.request = request;