Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-06-06 16:45:39 +00:00
Code Issues Projects Releases Packages Wiki Activity

Register media instance with session and prepare communication with embedder

Browse source
This commit is contained in:
Fernando Jiménez Moreno 2019-10-08 10:18:13 +02:00
parent 9c329a7935
commit 4d147d2c56
8 changed files with 107 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

22
components/script/dom/navigator.rs
View file

@ -21,6 +21,7 @@ use crate::dom::promise::Promise;
use crate::dom::serviceworkercontainer::ServiceWorkerContainer;
use crate::dom::window::Window;
use crate::dom::xr::XR;
use crate::script_thread::ScriptThread;
use dom_struct::dom_struct;
use std::rc::Rc;
@ -192,7 +193,24 @@ impl NavigatorMethods for Navigator {
/// https://w3c.github.io/mediasession/#dom-navigator-mediasession
fn MediaSession(&self) -> DomRoot<MediaSession> {
self.mediasession
.or_init(|| MediaSession::new(self.global().as_window()))
self.mediasession.or_init(|| {
// There is a single MediaSession instance per top level browsing context
// and only one active MediaSession globally.
//
// MediaSession creation can happen in two cases:
//
// - If content gets `navigator.mediaSession`
// - If a media instance (HTMLMediaElement so far) starts playing media.
//
// The MediaSession constructor is in charge of registering itself with
// the script thread.
let global = self.global();
let window = global.as_window();
let browsing_context_id = window.window_proxy().top_level_browsing_context_id();
match ScriptThread::get_media_session(browsing_context_id) {
Some(session) => session,
None => MediaSession::new(window),
}
})
}
}