compositor: Make PipelineDetails and pending paint metrics per-WebView (#35701)

This is one of the first big steps toward making the compositor work
per-WebView. It moves the collection of pipelines into the per-WebView
data structure in the compositor as well as the pending paint metrics.

This means that more messages need to carry information about the
WebView they apply to. Note that there are still a few places that we
need to map from `PipelineId` to `WebViewId`, so this also includes a
shared mapping which tracks this. The mapping can be removed once event
handling is fully per-WebView.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Delan Azabani <dazabani@igalia.com>
This commit is contained in:
Martin Robinson 2025-03-04 03:31:23 +01:00 committed by GitHub
parent 0d0bcdeb4d
commit f3e6e4f04e
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GPG key ID: B5690EEEBB952194
13 changed files with 537 additions and 373 deletions

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@ -386,8 +386,11 @@ impl Pipeline {
// It's OK for the constellation to block on the compositor,
// since the compositor never blocks on the constellation.
if let Ok((sender, receiver)) = ipc::channel() {
self.compositor_proxy
.send(CompositorMsg::PipelineExited(self.id, sender));
self.compositor_proxy.send(CompositorMsg::PipelineExited(
self.top_level_browsing_context_id,
self.id,
sender,
));
if let Err(e) = receiver.recv() {
warn!("Sending exit message failed ({:?}).", e);
}
@ -455,7 +458,8 @@ impl Pipeline {
/// running timers at a heavily limited rate.
pub fn set_throttled(&self, throttled: bool) {
let script_msg = ScriptThreadMessage::SetThrottled(self.id, throttled);
let compositor_msg = CompositorMsg::SetThrottled(self.id, throttled);
let compositor_msg =
CompositorMsg::SetThrottled(self.top_level_browsing_context_id, self.id, throttled);
let err = self.event_loop.send(script_msg);
if let Err(e) = err {
warn!("Sending SetThrottled to script failed ({}).", e);