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5424479768
Simply how `ProgressiveWebMetrics` works: 1. Keep only a single struct instead of one in layout and one script that both implement the `ProgressiveWebMetrics` trait. Since layout and script are the same thread these can now just be a single `ProgressiveWebMetrics` struct stored in script. 2. Have the compositor be responsible for informing the Constellation (which informs the ScripThread) about paint metrics. This makes communication flow one way and removes one dependency between the compositor and script (of two). 3. All units tests are moved into the `metrics` crate itself since there is only one struct there now. Signed-off-by: Martin Robinson <mrobinson@igalia.com>
49 lines
2.2 KiB
Rust
49 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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/// Log an event from constellation at trace level.
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/// - To disable tracing: RUST_LOG='compositor<constellation@=off'
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/// - To enable tracing: RUST_LOG='compositor<constellation@'
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macro_rules! trace_msg_from_constellation {
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// This macro only exists to put the docs in the same file as the target prefix,
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// so the macro definition is always the same.
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($event:expr, $($rest:tt)+) => {
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::log::trace!(target: $crate::tracing::LogTarget::log_target(&$event), $($rest)+)
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};
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}
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/// Get the log target for an event, as a static string.
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pub(crate) trait LogTarget {
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fn log_target(&self) -> &'static str;
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}
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mod from_constellation {
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use super::LogTarget;
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macro_rules! target {
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($($name:literal)+) => {
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concat!("compositor<constellation@", $($name),+)
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};
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}
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impl LogTarget for compositing_traits::CompositorMsg {
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fn log_target(&self) -> &'static str {
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match self {
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Self::ChangeRunningAnimationsState(..) => target!("ChangeRunningAnimationsState"),
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Self::CreateOrUpdateWebView(..) => target!("CreateOrUpdateWebView"),
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Self::RemoveWebView(..) => target!("RemoveWebView"),
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Self::TouchEventProcessed(..) => target!("TouchEventProcessed"),
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Self::CreatePng(..) => target!("CreatePng"),
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Self::IsReadyToSaveImageReply(..) => target!("IsReadyToSaveImageReply"),
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Self::SetThrottled(..) => target!("SetThrottled"),
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Self::NewWebRenderFrameReady(..) => target!("NewWebRenderFrameReady"),
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Self::PipelineExited(..) => target!("PipelineExited"),
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Self::LoadComplete(..) => target!("LoadComplete"),
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Self::WebDriverMouseButtonEvent(..) => target!("WebDriverMouseButtonEvent"),
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Self::WebDriverMouseMoveEvent(..) => target!("WebDriverMouseMoveEvent"),
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Self::CrossProcess(_) => target!("CrossProcess"),
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}
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}
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}
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}
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