mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-13 18:27:35 +00:00
42 lines
1.3 KiB
HTML
42 lines
1.3 KiB
HTML
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<script>
|
|
addEventListener("pageshow", function() {
|
|
var bc = new BroadcastChannel("browser_browsingContext");
|
|
function frameData() {
|
|
var win = SpecialPowers.wrap(frames[0]);
|
|
bc.postMessage(
|
|
{ framesLength: frames.length,
|
|
browsingContextId: win.docShell.browsingContext.id,
|
|
outerWindowId: win.docShell.outerWindowID
|
|
});
|
|
}
|
|
|
|
bc.onmessage = function(event) {
|
|
if (event.data == "createiframe") {
|
|
let frame = document.createElement("iframe");
|
|
frame.src = "dummy_page.html";
|
|
document.body.appendChild(frame);
|
|
frame.onload = frameData;
|
|
} else if (event.data == "nextpage") {
|
|
bc.close();
|
|
location.href = "onload_message.html";
|
|
} else if (event.data == "queryframes") {
|
|
frameData();
|
|
} else if (event.data == "close") {
|
|
bc.postMessage("closed");
|
|
bc.close();
|
|
window.close();
|
|
}
|
|
}
|
|
bc.postMessage("pageshow");
|
|
});
|
|
</script>
|
|
</head>
|
|
<body>
|
|
This file posts a message containing "pageshow" to a BroadcastChannel and
|
|
keep the channel open for commands.
|
|
</body>
|
|
</html>
|