script/dom/performance/
largestcontentfulpaint.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use dom_struct::dom_struct;
6use script_bindings::reflector::reflect_dom_object;
7use servo_base::cross_process_instant::CrossProcessInstant;
8use servo_url::ServoUrl;
9use time::Duration;
10
11use super::performanceentry::{EntryType, PerformanceEntry};
12use crate::dom::bindings::codegen::Bindings::LargestContentfulPaintBinding::LargestContentfulPaintMethods;
13use crate::dom::bindings::codegen::Bindings::PerformanceBinding::DOMHighResTimeStamp;
14use crate::dom::bindings::reflector::DomGlobal;
15use crate::dom::bindings::root::DomRoot;
16use crate::dom::bindings::str::DOMString;
17use crate::dom::element::Element;
18use crate::dom::globalscope::GlobalScope;
19use crate::script_runtime::CanGc;
20
21#[dom_struct]
22pub(crate) struct LargestContentfulPaint {
23    entry: PerformanceEntry,
24    #[no_trace]
25    load_time: CrossProcessInstant,
26    #[no_trace]
27    render_time: CrossProcessInstant,
28    size: usize,
29    url: DOMString,
30    element: Option<DomRoot<Element>>,
31}
32
33impl LargestContentfulPaint {
34    pub(crate) fn new_inherited(
35        render_time: CrossProcessInstant,
36        size: usize,
37        url: Option<ServoUrl>,
38    ) -> LargestContentfulPaint {
39        LargestContentfulPaint {
40            entry: PerformanceEntry::new_inherited(
41                DOMString::from(""),
42                EntryType::LargestContentfulPaint,
43                Some(render_time),
44                Duration::ZERO,
45            ),
46            load_time: CrossProcessInstant::epoch(),
47            render_time,
48            size,
49            url: url.map(|u| DOMString::from(u.as_str())).unwrap_or_default(),
50            element: None,
51        }
52    }
53
54    #[cfg_attr(crown, expect(crown::unrooted_must_root))]
55    pub(crate) fn new(
56        global: &GlobalScope,
57        render_time: CrossProcessInstant,
58        size: usize,
59        url: Option<ServoUrl>,
60        can_gc: CanGc,
61    ) -> DomRoot<LargestContentfulPaint> {
62        let entry = LargestContentfulPaint::new_inherited(render_time, size, url);
63        reflect_dom_object(Box::new(entry), global, can_gc)
64    }
65}
66
67impl LargestContentfulPaintMethods<crate::DomTypeHolder> for LargestContentfulPaint {
68    /// <https://www.w3.org/TR/largest-contentful-paint/#dom-largestcontentfulpaint-loadtime>
69    fn LoadTime(&self) -> DOMHighResTimeStamp {
70        self.global()
71            .performance()
72            .to_dom_high_res_time_stamp(self.load_time)
73    }
74
75    /// <https://www.w3.org/TR/largest-contentful-paint/#dom-largestcontentfulpaint-rendertime>
76    fn RenderTime(&self) -> DOMHighResTimeStamp {
77        self.global()
78            .performance()
79            .to_dom_high_res_time_stamp(self.render_time)
80    }
81
82    /// <https://www.w3.org/TR/largest-contentful-paint/#dom-largestcontentfulpaint-size>
83    fn Size(&self) -> u32 {
84        self.size as u32
85    }
86
87    /// <https://www.w3.org/TR/largest-contentful-paint/#dom-largestcontentfulpaint-url>
88    fn Url(&self) -> DOMString {
89        self.url.clone()
90    }
91
92    /// <https://www.w3.org/TR/largest-contentful-paint/#dom-largestcontentfulpaint-element>
93    fn GetElement(&self) -> Option<DomRoot<Element>> {
94        self.element.clone()
95    }
96}
script/dom/performance/largestcontentfulpaint.rs

script/dom/performance/
largestcontentfulpaint.rs
