discourse/app/assets/stylesheets/common/foundation/variables.scss
Jeff Wong 849b786378
DEV: refactor font sizing into css custom variables (#12746)
* DEV: refactor font sizing into css custom variables

Add font variables as css variables. Allows plugins/themes to update/overwrite the variables and have core pick up changes. This allows for a theme or plugin to overhaul core's font ratios if desired.
2021-04-28 17:21:59 -07:00

227 lines
6.2 KiB
SCSS

// --------------------------------------------------
// Variables used throughout the theme
// --------------------------------------------------
// Layout dimensions
// --------------------------------------------------
$small-width: 800px !default;
$medium-width: 995px !default;
$large-width: 1110px !default;
$input-padding: 4px 10px;
$topic-body-width: 690px;
$topic-body-width-padding: 11px;
$topic-avatar-width: 45px;
$reply-area-max-width: 1475px !default;
// Brand color variables
// --------------------------------------------------
$google: #ffffff !default;
$google-hover: darken($google, 5%) !default;
$instagram: #e1306c !default;
$instagram-hover: darken($instagram, 15%) !default;
$facebook: #1877f2 !default;
$facebook-hover: darken($facebook, 15%) !default;
$cas: #70ba61 !default;
$twitter: #1da1f2 !default;
$twitter-hover: darken($twitter, 10%) !default;
$github: #100e0f !default;
$github-hover: lighten($github, 20%) !default;
$discord: #7289da !default;
$discord-hover: darken($discord, 10%) !default;
// Badge color variables
// --------------------------------------------------
$gold: rgb(231, 195, 0) !default;
$silver: #c0c0c0 !default;
$bronze: #cd7f32 !default;
// Fonts
// --------------------------------------------------
$base-font-family: var(--font-family) !default;
$base-font-size-smallest: var(--base-font-size-smallest) !default;
$base-font-size-smaller: var(--base-font-size-smaller) !default;
$base-font-size: var(--base-font-size) !default;
$base-font-size-larger: var(--base-font-size-larger) !default;
$base-font-size-largest: var(--base-font-size-largest) !default;
$heading-font-family: var(--heading-font-family) !default;
// Font-size defintions, multiplier ^ (step / interval)
$font-up-6: var(--font-up-6) !default;
$font-up-5: var(--font-up-5) !default;
$font-up-4: var(--font-up-4) !default;
$font-up-3: var(--font-up-3) !default;
$font-up-2: var(--font-up-2) !default;
$font-up-1: var(--font-up-1) !default;
$font-0: var(--font-0);
$font-down-1: var(--font-down-1) !default;
$font-down-2: var(--font-down-2) !default;
$font-down-3: var(--font-down-3) !default;
$font-down-4: var(--font-down-4) !default;
$font-down-5: var(--font-down-5) !default;
$font-down-6: var(--font-down-6) !default;
$font-size-ios-input: var(--font-size-ios-input) !default;
// Common line-heights
$line-height-small: var(--line-height-small) !default;
$line-height-medium: var(--line-height-medium) !default;
$line-height-large: var(--line-height-large) !default;
@import "common/foundation/math";
// Z-index
// --------------------------------------------------
$z-layers: (
"max": 9999,
"modal": (
"tooltip": 1600,
"popover": 1500,
"dropdown": 1400,
"content": 1300,
"overlay": 1200,
),
"fullscreen": 1150,
"mobile-composer": 1100,
"ipad-header-nav": 1020,
"header": 1000,
"footer-nav": 900,
"tooltip": 600,
"composer": (
"dropdown": 700,
"tooltip": 600,
"popover": 500,
"content": 400,
),
"dropdown": 300,
"usercard": 200,
"timeline": 100,
"base": 1,
);
@function map-has-nested-keys($map, $keys...) {
@each $key in $keys {
@if not map-has-key($map, $key) {
@return false;
}
$map: map-get($map, $key);
}
@return true;
}
@function map-deep-get($map, $keys...) {
@each $key in $keys {
$map: map-get($map, $key);
}
@return $map;
}
@function z($layers...) {
@if not map-has-nested-keys($z-layers, $layers...) {
@warn "No layer defined for `#{inspect($layers...)}` in $z-layers map. Check variables.scss, property omitted.";
}
@return map-deep-get($z-layers, $layers...);
}
// Box-shadow
// --------------------------------------------------
$box-shadow: (
"modal": 0 8px 60px rgba(0, 0, 0, 0.6),
"composer": 0 -1px 40px rgba(0, 0, 0, 0.12),
"menu-panel": 0 12px 12px rgba(0, 0, 0, 0.15),
"card": 0 4px 14px rgba(0, 0, 0, 0.15),
"dropdown": 0 2px 3px 0 rgba(0, 0, 0, 0.2),
"header": 0 2px 4px -1px rgba(0, 0, 0, 0.25),
"footer-nav": 0 0 2px 0 rgba(0, 0, 0, 0.25),
"kbd": (
0 2px 0 rgba(0, 0, 0, 0.2),
0 0 0 1px dark-light-choose(#fff, #000) inset,
),
"focus": 0 0 3px 0 $tertiary,
"focus-danger": 0 0 6px 0 $danger,
);
@function shadow($key) {
@return map-get($box-shadow, $key);
}
// Color utilities
// --------------------------------------------------
// w3c definition of color brightness https://www.w3.org/TR/AERT#color-contrast
@function dc-color-brightness($color) {
@return (
(red($color) * 0.299) + (green($color) * 0.587) + (blue($color) * 0.114)
);
}
// Uses an approximation of sRGB blending, GAMMA=2 instead of GAMMA=2.2
@function srgb-scale($foreground, $background, $percent) {
$ratio: ($percent / 100%);
$iratio: 1 - $ratio;
$f_r2: red($foreground) * red($foreground);
$f_g2: green($foreground) * green($foreground);
$f_b2: blue($foreground) * blue($foreground);
$b_r2: red($background) * red($background);
$b_g2: green($background) * green($background);
$b_b2: blue($background) * blue($background);
$r_r2: $f_r2 * $ratio + $b_r2 * $iratio;
$r_g2: $f_g2 * $ratio + $b_g2 * $iratio;
$r_b2: $f_b2 * $ratio + $b_b2 * $iratio;
$r_r: sqrt($r_r2);
$r_g: sqrt($r_g2);
$r_b: sqrt($r_b2);
@return rgb($r_r, $r_g, $r_b);
}
// Replaces dark-light-diff($primary, $secondary, 50%, -50%)
@function blend-primary-secondary($percent) {
@return srgb-scale($primary, $secondary, $percent);
}
@function blend-header-primary-background($percent) {
@return srgb-scale($header_primary, $header_background, $percent);
}
@function dark-light-diff(
$adjusted-color,
$comparison-color,
$lightness,
$darkness
) {
@if dc-color-brightness($adjusted-color) <
dc-color-brightness($comparison-color)
{
@return scale-color($adjusted-color, $lightness: $lightness);
} @else {
@return scale-color($adjusted-color, $lightness: $darkness);
}
}
@function dark-light-choose($light-theme-result, $dark-theme-result) {
@if is-light-color-scheme() {
@return $light-theme-result;
} @else {
@return $dark-theme-result;
}
}
@function is-light-color-scheme() {
@if dc-color-brightness($primary) < dc-color-brightness($secondary) {
@return true;
} @else {
@return false;
}
}
@function is-dark-color-scheme() {
@return not is-light-color-scheme();
}
@import "color_transformations";