1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/* 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 cssparser::Parser;
use dom::bindings::codegen::Bindings::CSSMediaRuleBinding;
use dom::bindings::codegen::Bindings::CSSMediaRuleBinding::CSSMediaRuleMethods;
use dom::bindings::js::{MutNullableJS, Root};
use dom::bindings::reflector::{DomObject, reflect_dom_object};
use dom::bindings::str::DOMString;
use dom::cssconditionrule::CSSConditionRule;
use dom::cssrule::SpecificCSSRule;
use dom::cssstylesheet::CSSStyleSheet;
use dom::medialist::MediaList;
use dom::window::Window;
use parking_lot::RwLock;
use std::sync::Arc;
use style::media_queries::parse_media_query_list;
use style::stylesheets::MediaRule;
use style_traits::ToCss;
#[dom_struct]
pub struct CSSMediaRule {
cssrule: CSSConditionRule,
#[ignore_heap_size_of = "Arc"]
mediarule: Arc<RwLock<MediaRule>>,
medialist: MutNullableJS<MediaList>,
}
impl CSSMediaRule {
fn new_inherited(parent_stylesheet: &CSSStyleSheet, mediarule: Arc<RwLock<MediaRule>>)
-> CSSMediaRule {
let list = mediarule.read().rules.clone();
CSSMediaRule {
cssrule: CSSConditionRule::new_inherited(parent_stylesheet, list),
mediarule: mediarule,
medialist: MutNullableJS::new(None),
}
}
#[allow(unrooted_must_root)]
pub fn new(window: &Window, parent_stylesheet: &CSSStyleSheet,
mediarule: Arc<RwLock<MediaRule>>) -> Root<CSSMediaRule> {
reflect_dom_object(box CSSMediaRule::new_inherited(parent_stylesheet, mediarule),
window,
CSSMediaRuleBinding::Wrap)
}
fn medialist(&self) -> Root<MediaList> {
self.medialist.or_init(|| MediaList::new(self.global().as_window(),
self.mediarule.read().media_queries.clone()))
}
/// https://drafts.csswg.org/css-conditional-3/#the-cssmediarule-interface
pub fn get_condition_text(&self) -> DOMString {
let rule = self.mediarule.read();
let list = rule.media_queries.read();
list.to_css_string().into()
}
/// https://drafts.csswg.org/css-conditional-3/#the-cssmediarule-interface
pub fn set_condition_text(&self, text: DOMString) {
let mut input = Parser::new(&text);
let new_medialist = parse_media_query_list(&mut input);
let rule = self.mediarule.read();
let mut list = rule.media_queries.write();
*list = new_medialist;
}
}
impl SpecificCSSRule for CSSMediaRule {
fn ty(&self) -> u16 {
use dom::bindings::codegen::Bindings::CSSRuleBinding::CSSRuleConstants;
CSSRuleConstants::MEDIA_RULE
}
fn get_css(&self) -> DOMString {
self.mediarule.read().to_css_string().into()
}
}
impl CSSMediaRuleMethods for CSSMediaRule {
// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-media
fn Media(&self) -> Root<MediaList> {
self.medialist()
}
}
|
