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mirror of https://github.com/kokonect-link/cherrypick synced 2024-12-16 23:58:59 +09:00
cherrypick/src/client/app/theme.ts

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import * as tinycolor from 'tinycolor2';
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type Theme = {
meta: {
id: string;
name: string;
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author: string;
base?: string;
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vars: any;
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};
} & {
[key: string]: string;
};
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export function applyTheme(theme: Theme, persisted = true) {
if (theme.meta.base) {
const base = [lightTheme, darkTheme].find(x => x.meta.id == theme.meta.base);
theme = Object.assign({}, base, theme);
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}
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const props = compile(theme);
Object.entries(props).forEach(([k, v]) => {
if (k == 'meta') return;
document.documentElement.style.setProperty(`--${k}`, v.toString());
});
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if (persisted) {
localStorage.setItem('theme', JSON.stringify(props));
}
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}
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function compile(theme: Theme): { [key: string]: string } {
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function getColor(code: string): tinycolor.Instance {
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// ref
if (code[0] == '@') {
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return getColor(theme[code.substr(1)]);
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}
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if (code[0] == '$') {
return getColor(theme.meta.vars[code.substr(1)]);
}
// func
if (code[0] == ':') {
const parts = code.split('<');
const func = parts.shift().substr(1);
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const arg = parseFloat(parts.shift());
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const color = getColor(parts.join('<'));
switch (func) {
case 'darken': return color.darken(arg);
case 'lighten': return color.lighten(arg);
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case 'alpha': return color.setAlpha(arg);
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}
}
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return tinycolor(code);
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}
const props = {};
Object.entries(theme).forEach(([k, v]) => {
if (k == 'meta') return;
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const c = getColor(v);
props[k] = genValue(c);
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});
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const primary = getColor(props['primary']);
for (let i = 1; i < 10; i++) {
const color = primary.clone().setAlpha(i / 10);
props['primaryAlpha0' + i] = genValue(color);
}
for (let i = 1; i < 100; i++) {
const color = primary.clone().lighten(i);
props['primaryLighten' + i] = genValue(color);
}
for (let i = 1; i < 100; i++) {
const color = primary.clone().darken(i);
props['primaryDarken' + i] = genValue(color);
}
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return props;
}
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function genValue(c: tinycolor.Instance): string {
return c.toRgbString();
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}
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export const lightTheme = require('../theme/light.json');
export const darkTheme = require('../theme/dark.json');
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export const pinkTheme = require('../theme/pink.json');
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export const halloweenTheme = require('../theme/halloween.json');
export const builtinThemes = [
lightTheme,
darkTheme,
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pinkTheme,
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halloweenTheme
];