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/* 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::js::{JS, JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector, reflect_dom_object};
use dom::performancetiming::{PerformanceTiming, PerformanceTimingMethods};
use dom::window::Window;
use time;
pub type DOMHighResTimeStamp = f64;
#[deriving(Encodable)]
pub struct Performance {
reflector_: Reflector,
timing: JS<PerformanceTiming>,
}
impl Performance {
fn new_inherited(window: &JSRef<Window>) -> Performance {
Performance {
reflector_: Reflector::new(),
timing: JS::from_rooted(&PerformanceTiming::new(window)),
}
}
pub fn new(window: &JSRef<Window>) -> Temporary<Performance> {
let performance = Performance::new_inherited(window);
reflect_dom_object(box performance, window, PerformanceBinding::Wrap)
}
}
pub trait PerformanceMethods {
fn Timing(&self) -> Temporary<PerformanceTiming>;
fn Now(&self) -> DOMHighResTimeStamp;
}
impl<'a> PerformanceMethods for JSRef<'a, Performance> {
fn Timing(&self) -> Temporary<PerformanceTiming> {
Temporary::new(self.timing.clone())
}
fn Now(&self) -> DOMHighResTimeStamp {
let navStart = self.timing.root().NavigationStartPrecise() as f64;
(time::precise_time_s() - navStart) as DOMHighResTimeStamp
}
}
impl Reflectable for Performance {
fn reflector<'a>(&'a self) -> &'a Reflector {
&self.reflector_
}
}
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