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Add a topLevelDomComplete metric.

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This commit is contained in:
Alan Jeffrey 2017-12-14 16:48:19 -06:00
parent 26feea3be5
commit 074447e501
7 changed files with 59 additions and 0 deletions
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12
components/script/dom/document.rs
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@ -322,6 +322,7 @@ pub struct Document {
dom_content_loaded_event_start: Cell<u64>,
dom_content_loaded_event_end: Cell<u64>,
dom_complete: Cell<u64>,
top_level_dom_complete: Cell<u64>,
load_event_start: Cell<u64>,
load_event_end: Cell<u64>,
/// <https://html.spec.whatwg.org/multipage/#concept-document-https-state>
@ -1627,6 +1628,12 @@ impl Document {
// asap_in_order_script_loaded.
let loader = self.loader.borrow();
// Servo measures when the top-level content (not iframes) is loaded.
if (self.top_level_dom_complete.get() == 0) && loader.is_only_blocked_by_iframes() {
update_with_current_time_ms(&self.top_level_dom_complete);
}
if loader.is_blocked() || loader.events_inhibited() {
// Step 6.
return;
@ -1951,6 +1958,10 @@ impl Document {
self.dom_complete.get()
}
pub fn get_top_level_dom_complete(&self) -> u64 {
self.top_level_dom_complete.get()
}
pub fn get_load_event_start(&self) -> u64 {
self.load_event_start.get()
}
@ -2265,6 +2276,7 @@ impl Document {
dom_content_loaded_event_start: Cell::new(Default::default()),
dom_content_loaded_event_end: Cell::new(Default::default()),
dom_complete: Cell::new(Default::default()),
top_level_dom_complete: Cell::new(Default::default()),
load_event_start: Cell::new(Default::default()),
load_event_end: Cell::new(Default::default()),
https_state: Cell::new(HttpsState::None),

6
components/script/dom/performancetiming.rs
View file

@ -86,6 +86,12 @@ impl PerformanceTimingMethods for PerformanceTiming {
fn LoadEventEnd(&self) -> u64 {
self.document.get_load_event_end()
}
// check-tidy: no specs after this line
// Servo-only timing for when top-level content (not iframes) is complete
fn TopLevelDomComplete(&self) -> u64 {
self.document.get_top_level_dom_complete()
}
}

3
components/script/dom/webidls/PerformanceTiming.webidl
View file

@ -29,4 +29,7 @@ interface PerformanceTiming {
readonly attribute unsigned long long domComplete;
readonly attribute unsigned long long loadEventStart;
readonly attribute unsigned long long loadEventEnd;
/* Servo-onnly attribute for measuring when the top-level document (not iframes) is complete. */
[Pref="dom.testperf.enabled"]
readonly attribute unsigned long long topLevelDomComplete;
};