fune/servo/components/script/dom/css.rs
Emilio Cobos Álvarez b152f9ab2e servo: Merge #17154 - style: Split stylesheets.rs (from emilio:split); r=Manishearth
This file has become quite bloated lately. This commit deletes that file in
favor of a set of submodules.

The only noticeable change apart from code move, is converting deep_clone_foo
methods into a trait.

It also unifies logic related to different style rules in the same place.

There's some missing work, specially related to font-face and counter-style, but
I think this is worth landing in the meantime.

Source-Repo: https://github.com/servo/servo
Source-Revision: c260c6ede0988f331011f33485964775e1f3a7f9

--HG--
rename : servo/components/style/document_condition.rs => servo/components/style/stylesheets/document_rule.rs
rename : servo/components/style/keyframes.rs => servo/components/style/stylesheets/keyframes_rule.rs
rename : servo/components/style/supports.rs => servo/components/style/stylesheets/supports_rule.rs
rename : servo/components/style/viewport.rs => servo/components/style/stylesheets/viewport_rule.rs
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 21cebaaa756b33956e197c7aeb537aecb8938f2a
2017-06-04 14:26:30 -07:00

54 lines
2.3 KiB
Rust

/* 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, serialize_identifier};
use dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
use dom::bindings::error::Fallible;
use dom::bindings::reflector::Reflector;
use dom::bindings::str::DOMString;
use dom::window::Window;
use dom_struct::dom_struct;
use style::context::QuirksMode;
use style::parser::{PARSING_MODE_DEFAULT, ParserContext};
use style::stylesheets::CssRuleType;
use style::stylesheets::supports_rule::{Declaration, parse_condition_or_declaration};
#[dom_struct]
pub struct CSS {
reflector_: Reflector,
}
impl CSS {
/// http://dev.w3.org/csswg/cssom/#serialize-an-identifier
pub fn Escape(_: &Window, ident: DOMString) -> Fallible<DOMString> {
let mut escaped = String::new();
serialize_identifier(&ident, &mut escaped).unwrap();
Ok(DOMString::from(escaped))
}
/// https://drafts.csswg.org/css-conditional/#dom-css-supports
pub fn Supports(win: &Window, property: DOMString, value: DOMString) -> bool {
let decl = Declaration { prop: property.into(), val: value.into() };
let url = win.Document().url();
let context = ParserContext::new_for_cssom(&url, win.css_error_reporter(), Some(CssRuleType::Supports),
PARSING_MODE_DEFAULT,
QuirksMode::NoQuirks);
decl.eval(&context)
}
/// https://drafts.csswg.org/css-conditional/#dom-css-supports
pub fn Supports_(win: &Window, condition: DOMString) -> bool {
let mut input = Parser::new(&condition);
let cond = parse_condition_or_declaration(&mut input);
if let Ok(cond) = cond {
let url = win.Document().url();
let context = ParserContext::new_for_cssom(&url, win.css_error_reporter(), Some(CssRuleType::Supports),
PARSING_MODE_DEFAULT,
QuirksMode::NoQuirks);
cond.eval(&context)
} else {
false
}
}
}