aboutsummaryrefslogtreecommitdiffstats
path: root/src/_props.scss
blob: 300fc28f2a38b9b7b7b57462f2a815b1e69518b4 (plain) (blame)
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
132
133
134
135
136
137
138
139
@use 'sass:list';
@use 'sass:map';
@use 'sass:meta';

@function is-prop-ref($value) {
    @if meta.type-of($value) != 'list' {
        @return false;
    }
    @if list.length($value) != 4 {
        @return false;
    }
    @if list.nth($value, 1) != 'prop-ref' {
        @return false;
    }
    @return true;
}

@function def($name, $value: (), $metadata: ()) {
    @return ('prop-ref' $name $value $metadata);
}

@function merge($ref, $value) {
    @if not is-prop-ref($ref) {
        @return $ref;
    }

    $v:   list.nth($ref, 3);
    $ref: list.set-nth($ref, 3, map.deep-merge($v, $value));
    @return $ref;
}

@function get-deep($name, $value, $key: null, $keys...) {
    @if is-prop-ref($value) {
        @return get($value, $key, $keys);
    }
    @if meta.type-of($value) == 'map' and $key != null {
        @if meta.type-of($key) != 'string' {
            @error 'Expected string, got #{$key}';
        }
        @return get-deep(#{$name}#{$key}, map.get($value, $key), $keys...);
    }
    @return $name $value;
}

@function map-to-vars($name, $map) {
    @if meta.type-of($map) != 'map' {
        @if meta.type-of($name) != 'string' {
            @error 'Expected variable name, got #{$name} instead';
        }
        @return var($name);
    }

    $out: ();

    @each $key, $value in $map {
        $out: map.set($out, $key, map-to-vars(#{$name}#{$key}, $value));
    }

    @return $out;
}

@function get($ref, $key: null, $keys...) {
    @if not is-prop-ref($ref) {
        @return $ref;
    }

    $name:  list.nth($ref, 2);
    $value: get(list.nth($ref, 3));

    @if meta.type-of($value) == 'map' {
        $res:   get-deep($name, $value, $key, $keys...);
        $name:  list.nth($res, 1);
        $value: list.nth($res, 2);
    } @else if meta.type-of($value) == 'list' {
        $i: 1;
        @each $item in $value {
            $value: list.set-nth($value, $i, get($item));
            $i: $i + 1;
        }
    }

    @return map-to-vars($name, $value);
}

@mixin materialize-helper($name, $value) {
    @if meta.type-of($value) == 'map' {
        @each $key, $value in $value {
            @include materialize-helper(#{$name}#{$key}, $value);
        }
    } @else {
        #{$name}: #{$value};
    }
}

@mixin materialize($ref, $match-meta: ()) {
    @if is-prop-ref($ref) {
        $name:  list.nth($ref, 2);
        $value: get(list.nth($ref, 3));
        $meta:  get(list.nth($ref, 4));

        $match: true;
        @if meta.type-of($match-meta) == 'list' {
            @each $item in $match-meta {
                $match: $match and list.index($meta, $item) != null;
            }
        } @else if $match-meta == null and list.length($meta) == 0 {
            $match: true;
        } @else {
            $match: list.index($meta, $match-meta) != null;
        }

        @if $match {
            @include materialize-helper($name, $value);
        }
    } @else if meta.type-of($ref) == 'list' {
        @each $r in $ref {
            @if is-prop-ref($r) {
                $name:  list.nth($r, 2);
                $value: get(list.nth($r, 3));
                $meta:  get(list.nth($r, 4));

                $match: true;
                @if meta.type-of($match-meta) == 'list' {
                    @each $item in $match-meta {
                        $match: $match and list.index($meta, $item) != null;
                    }
                } @else if $match-meta == null and list.length($meta) == 0 {
                    $match: true;
                } @else {
                    $match: list.index($meta, $match-meta) != null;
                }
        
                @if $match {
                    @include materialize-helper($name, $value);
                }
            }
        }
    }
}