forked from mirrors/gecko-dev
b3e4dcef5f
Also adds HeapSizeOf implementations/derive for some types. I've used "Cannot calculate Heap size" as a reason everywhere, because my imagination is rather limited. If you'd like me to change this message for specific types, please write something like this: "Trusted - Cannot calculate Heap size for Trusted" so that it would be easier for me to replace them through a script :) Source-Repo: https://github.com/servo/servo Source-Revision: a03616f379c255cc6c9b6e1d04dd7d98bd9926ce
60 lines
2.3 KiB
Rust
60 lines
2.3 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::global::GlobalRef;
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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::utils::{Reflector, reflect_dom_object};
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use dom::performancetiming::{PerformanceTiming, PerformanceTimingHelpers};
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use dom::window::Window;
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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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#[derive(HeapSizeOf)]
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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_rooted(&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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GlobalRef::Window(window),
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PerformanceBinding::Wrap)
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}
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}
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impl<'a> PerformanceMethods for &'a 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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self.timing.root()
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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 navStart = self.timing.root().r().NavigationStartPrecise();
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let now = (time::precise_time_ns() as f64 - navStart) / 1000000 as f64;
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Finite::wrap(now)
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}
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}
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