forked from mirrors/gecko-dev
be2b512750
The rustup is needed for https://github.com/rust-lang/rust/pull/40039. Source-Repo: https://github.com/servo/servo Source-Revision: a204c4176dcccdad8ec99d74055c66794c3f64ba --HG-- rename : servo/components/domobject_derive/Cargo.toml => servo/components/dom_struct/Cargo.toml extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 2cad140c3d6b99837f0bd15a6f3ccba0f353e049
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
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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 http://mozilla.org/MPL/2.0/. */
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use dom::bindings::codegen::Bindings::PerformanceBinding;
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use dom::bindings::codegen::Bindings::PerformanceBinding::PerformanceMethods;
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use dom::bindings::js::{JS, Root};
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use dom::bindings::num::Finite;
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use dom::bindings::reflector::{Reflector, reflect_dom_object};
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use dom::performancetiming::PerformanceTiming;
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use dom::window::Window;
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use dom_struct::dom_struct;
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use time;
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pub type DOMHighResTimeStamp = Finite<f64>;
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#[dom_struct]
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pub struct Performance {
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reflector_: Reflector,
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timing: JS<PerformanceTiming>,
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}
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impl Performance {
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fn new_inherited(window: &Window,
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navigation_start: u64,
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navigation_start_precise: f64) -> Performance {
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Performance {
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reflector_: Reflector::new(),
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timing: JS::from_ref(&*PerformanceTiming::new(window,
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navigation_start,
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navigation_start_precise)),
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}
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}
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pub fn new(window: &Window,
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navigation_start: u64,
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navigation_start_precise: f64) -> Root<Performance> {
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reflect_dom_object(box Performance::new_inherited(window,
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navigation_start,
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navigation_start_precise),
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window,
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PerformanceBinding::Wrap)
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}
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}
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impl PerformanceMethods for Performance {
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// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html#performance-timing-attribute
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fn Timing(&self) -> Root<PerformanceTiming> {
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Root::from_ref(&*self.timing)
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}
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// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/HighResolutionTime/Overview.html#dom-performance-now
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fn Now(&self) -> DOMHighResTimeStamp {
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let nav_start = self.timing.navigation_start_precise();
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let now = (time::precise_time_ns() as f64 - nav_start) / 1000000 as f64;
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Finite::wrap(now)
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}
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}
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