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Introduce embedder MediaSessionEvent and move active session to Servo

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This commit is contained in:
Fernando Jiménez Moreno 2019-10-09 12:16:35 +02:00
parent 4d147d2c56
commit 89d9e3ad78
9 changed files with 90 additions and 61 deletions
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31
components/servo/lib.rs
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@ -83,6 +83,7 @@ use constellation::{Constellation, InitialConstellationState, UnprivilegedPipeli
use constellation::{FromCompositorLogger, FromScriptLogger};
use crossbeam_channel::{unbounded, Sender};
use embedder_traits::{EmbedderMsg, EmbedderProxy, EmbedderReceiver, EventLoopWaker};
use embedder_traits::{MediaSessionEvent, MediaSessionPlaybackState};
use env_logger::Builder as EnvLoggerBuilder;
use euclid::{Scale, Size2D};
#[cfg(all(
@ -270,6 +271,9 @@ pub struct Servo<Window: WindowMethods + 'static + ?Sized> {
embedder_receiver: EmbedderReceiver,
embedder_events: Vec<(Option<BrowserId>, EmbedderMsg)>,
profiler_enabled: bool,
webgl_thread_data: Option<Rc<WebGLMainThread>>,
/// Browser ID of the active media session, if any.
active_media_session: Option<BrowserId>,
}
#[derive(Clone)]
@ -555,6 +559,8 @@ where
embedder_receiver: embedder_receiver,
embedder_events: Vec::new(),
profiler_enabled: false,
webgl_thread_data,
active_media_session: None,
}
}
@ -744,6 +750,31 @@ where
self.embedder_events.push(event);
},
(EmbedderMsg::MediaSessionEvent(event), ShutdownState::NotShuttingDown) => {
// Unlikely at this point, but we may receive events coming from
// different media sessions, so we set the active media session based
// on Playing events.
// The last media session claiming to be in playing state is set to
// the active media session.
// Events coming from inactive media sessions are discarded.
if self.active_media_session.is_some() {
match event {
MediaSessionEvent::PlaybackStateChange(ref state) => {
match state {
MediaSessionPlaybackState::Playing => (),
_ => return,
};
},
_ => (),
};
}
self.active_media_session = top_level_browsing_context;
self.embedder_events.push((
top_level_browsing_context,
EmbedderMsg::MediaSessionEvent(event),
));
},
(msg, ShutdownState::NotShuttingDown) => {
self.embedder_events.push((top_level_browsing_context, msg));
},