File: file_browser.test.onMessage.html

package info (click to toggle)
firefox 142.0.1-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,591,884 kB
  • sloc: cpp: 7,451,570; javascript: 6,392,463; ansic: 3,712,584; python: 1,388,569; xml: 629,223; asm: 426,919; java: 184,857; sh: 63,439; makefile: 19,150; objc: 13,059; perl: 12,983; yacc: 4,583; cs: 3,846; pascal: 3,352; lex: 1,720; ruby: 1,003; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 53; csh: 10
file content (38 lines) | stat: -rw-r--r-- 860 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
 
<!doctype html>
<meta charset="utf-8">

Testing browser.test.onMessage event from
a page hosted on web-platform.test.

<script>
"use strict";

function send(detail) {
  dispatchEvent(new CustomEvent("testMsg", { detail }));
}

function listener(message, data) {
  send({ message, data });
}

window.subscribe = () => {
  if (!window.browser) {
    send({ error: "Missing browser namespace." });
    return;
  }
  if (!window.browser.test?.onMessage?.addListener) {
    send({ error: "Missing browser.test.onMessage.addListener." });
    return;
  }
  browser.test.onMessage.addListener(listener);

  // If other things don't resolve collection of messages, explicit timeout.
  setTimeout(() => send({ error: "timeout" }), 5_000);
}

window.unsubscribe = () => {
  browser.test.onMessage.removeListener(listener);
  send({ done: "unsubscribed" });
}

</script>