forked from mirrors/gecko-dev
d5241ec13c
Changed the operator and updated the wpt-test for `hr-time`. Source-Repo: https://github.com/servo/servo Source-Revision: 458a5324618b8e58565d686fdea3363a31e11973
58 lines
2.2 KiB
Rust
58 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
use dom::bindings::codegen::Bindings::PerformanceBinding;
|
|
use dom::bindings::codegen::Bindings::PerformanceBinding::PerformanceMethods;
|
|
use dom::bindings::global::GlobalRef;
|
|
use dom::bindings::js::{JS, JSRef, Rootable, Temporary};
|
|
use dom::bindings::num::Finite;
|
|
use dom::bindings::utils::{Reflector, reflect_dom_object};
|
|
use dom::performancetiming::{PerformanceTiming, PerformanceTimingHelpers};
|
|
use dom::window::Window;
|
|
use time;
|
|
|
|
pub type DOMHighResTimeStamp = Finite<f64>;
|
|
|
|
#[dom_struct]
|
|
pub struct Performance {
|
|
reflector_: Reflector,
|
|
timing: JS<PerformanceTiming>,
|
|
}
|
|
|
|
impl Performance {
|
|
fn new_inherited(window: JSRef<Window>,
|
|
navigation_start: u64,
|
|
navigation_start_precise: f64) -> Performance {
|
|
Performance {
|
|
reflector_: Reflector::new(),
|
|
timing: JS::from_rooted(PerformanceTiming::new(window,
|
|
navigation_start,
|
|
navigation_start_precise)),
|
|
}
|
|
}
|
|
|
|
pub fn new(window: JSRef<Window>,
|
|
navigation_start: u64,
|
|
navigation_start_precise: f64) -> Temporary<Performance> {
|
|
reflect_dom_object(box Performance::new_inherited(window,
|
|
navigation_start,
|
|
navigation_start_precise),
|
|
GlobalRef::Window(window),
|
|
PerformanceBinding::Wrap)
|
|
}
|
|
}
|
|
|
|
impl<'a> PerformanceMethods for JSRef<'a, Performance> {
|
|
fn Timing(self) -> Temporary<PerformanceTiming> {
|
|
Temporary::from_rooted(self.timing.clone())
|
|
}
|
|
|
|
// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/HighResolutionTime/Overview.html#dom-performance-now
|
|
fn Now(self) -> DOMHighResTimeStamp {
|
|
let navStart = self.timing.root().r().NavigationStartPrecise();
|
|
let now = (time::precise_time_ns() as f64 - navStart) / 1000000 as f64;
|
|
Finite::wrap(now)
|
|
}
|
|
}
|
|
|