lewp-css 0.2.0

Domain model for CSS Stylesheets. Allowing effective minification and transformations such as autoprefixing and removal by other crates. Updated and maintained version for lewp.
Documentation 
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

// This file is part of css. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT. No part of predicator, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2017 The developers of css. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT.

use {
    super::{
        at_rules::{
            counter_style::CounterStyleAtRule,
            document::DocumentAtRule,
            font_face::FontFaceAtRule,
            font_feature_values::FontFeatureValuesAtRule,
            import::ImportAtRule,
            keyframes::KeyframesAtRule,
            media::MediaAtRule,
            namespace::NamespaceAtRule,
            page::PageAtRule,
            supports::SupportsAtRule,
            viewport::ViewportAtRule,
        },
        CssRuleType,
        StyleRule,
    },
    cssparser::ToCss,
    std::fmt,
};

/// No Charset here, CSSCharsetRule has been removed from CSSOM (<https://drafts.csswg.org/cssom/#changes-from-5-december-2013>) and Edge doesn't support it
#[derive(Debug, Clone)]
pub enum CssRule {
    /// @counter-style
    CounterStyle(CounterStyleAtRule),

    /// @document
    Document(DocumentAtRule),

    /// @font-face
    FontFace(FontFaceAtRule),

    /// @font-feature-values
    FontFeatureValues(FontFeatureValuesAtRule),

    /// @import
    Import(ImportAtRule),

    /// @keyframes
    Keyframes(KeyframesAtRule),

    /// @media
    Media(MediaAtRule),

    /// @namespace
    Namespace(NamespaceAtRule),

    /// @page
    Page(PageAtRule),

    /// Style rules, eg `div { width: 10%; }`
    Style(StyleRule),

    /// @supports
    Supports(SupportsAtRule),

    /// @viewport
    Viewport(ViewportAtRule),
}

impl ToCss for CssRule {
    /// <https://drafts.csswg.org/cssom/#serialize-a-css-rule>
    fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result {
        use self::CssRule::*;

        match *self {
            CounterStyle(ref rule) => rule.to_css(dest),

            Document(ref rule) => rule.to_css(dest),

            FontFace(ref rule) => rule.to_css(dest),

            FontFeatureValues(ref rule) => rule.to_css(dest),

            Import(ref rule) => rule.to_css(dest),

            Keyframes(ref rule) => rule.to_css(dest),

            Media(ref rule) => rule.to_css(dest),

            Namespace(ref rule) => rule.to_css(dest),

            Page(ref rule) => rule.to_css(dest),

            Style(ref rule) => rule.to_css(dest),

            Supports(ref rule) => rule.to_css(dest),

            Viewport(ref rule) => rule.to_css(dest),
        }
    }
}

impl CssRule {
    /// Returns the CSSOM rule type of this rule.
    #[inline(always)]
    pub fn rule_type(&self) -> CssRuleType {
        use self::CssRule::*;

        match *self {
            CounterStyle(_) => CssRuleType::CounterStyle,

            Document(_) => CssRuleType::Document,

            FontFace(_) => CssRuleType::FontFace,

            FontFeatureValues(_) => CssRuleType::FontFeatureValues,

            Import(_) => CssRuleType::Import,

            Keyframes(_) => CssRuleType::Keyframes,

            Media(_) => CssRuleType::Media,

            Namespace(_) => CssRuleType::Namespace,

            Page(_) => CssRuleType::Page,

            Style(_) => CssRuleType::Style,

            Supports(_) => CssRuleType::Supports,

            Viewport(_) => CssRuleType::Viewport,
        }
    }
}