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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { ref } from 'vue';
import tinycolor from 'tinycolor2';
import lightTheme from '@@/themes/_light.json5';
import darkTheme from '@@/themes/_dark.json5';
import { deepClone } from './clone.js';
import type { BundledTheme } from 'shiki/themes';
import { globalEvents } from '@/events.js';
import { miLocalStorage } from '@/local-storage.js';
export type Theme = {
id: string;
name: string;
author: string;
desc?: string;
base?: 'dark' | 'light';
props: Record<string, string>;
codeHighlighter?: {
base: BundledTheme;
overrides?: Record<string, any>;
} | {
base: '_none_';
overrides: Record<string, any>;
};
};
export const themeProps = Object.keys(lightTheme.props).filter(key => !key.startsWith('X'));
export const getBuiltinThemes = () => Promise.all(
[
'l-light',
'l-coffee',
'l-apricot',
'l-rainy',
'l-botanical',
'l-vivid',
'l-cherry',
'l-sushi',
'l-u0',
'd-dark',
'd-persimmon',
'd-astro',
'd-future',
'd-botanical',
'd-green-lime',
'd-green-orange',
'd-cherry',
'd-ice',
'd-u0',
'rosepine',
'rosepine-dawn',
].map(name => import(`@@/themes/${name}.json5`).then(({ default: _default }): Theme => _default)),
);
export const getBuiltinThemesRef = () => {
const builtinThemes = ref<Theme[]>([]);
getBuiltinThemes().then(themes => builtinThemes.value = themes);
return builtinThemes;
};
const themeFontFaceName = 'sharkey-theme-font-face';
let timeout: number | null = null;
export function applyTheme(theme: Theme, persist = true) {
if (timeout) window.clearTimeout(timeout);
document.documentElement.classList.add('_themeChanging_');
timeout = window.setTimeout(() => {
document.documentElement.classList.remove('_themeChanging_');
}, 1000);
const colorScheme = theme.base === 'dark' ? 'dark' : 'light';
document.documentElement.dataset.colorScheme = colorScheme;
// Deep copy
const _theme = deepClone(theme);
if (_theme.base) {
const base = [lightTheme, darkTheme].find(x => x.id === _theme.base);
if (base) _theme.props = Object.assign({}, base.props, _theme.props);
}
const props = compile(_theme);
for (const tag of document.head.children) {
if (tag.tagName === 'META' && tag.getAttribute('name') === 'theme-color') {
tag.setAttribute('content', props['htmlThemeColor']);
break;
}
}
let existingFontFace;
document.fonts.forEach(
(fontFace) => {
if (fontFace.family === themeFontFaceName) existingFontFace = fontFace;
},
);
if (existingFontFace) document.fonts.delete(existingFontFace);
const fontFaceSrc = props.fontFaceSrc;
const fontFaceOpts = props.fontFaceOpts || {};
if (fontFaceSrc) {
const fontFace = new FontFace(
themeFontFaceName,
fontFaceSrc, fontFaceOpts,
);
document.fonts.add(fontFace);
fontFace.load().catch(
(failure) => {
console.log(failure);
},
);
}
for (const [k, v] of Object.entries(props)) {
if (k.startsWith('font')) continue;
document.documentElement.style.setProperty(`--MI_THEME-${k}`, v.toString());
}
document.documentElement.style.setProperty('color-scheme', colorScheme);
if (persist) {
miLocalStorage.setItem('theme', JSON.stringify(props));
miLocalStorage.setItem('colorScheme', colorScheme);
}
// 色計算など再度行えるようにクライアント全体に通知
globalEvents.emit('themeChanged');
}
function compile(theme: Theme): Record<string, string> {
function getColor(val: string): tinycolor.Instance {
if (val[0] === '@') { // ref (prop)
return getColor(theme.props[val.substring(1)]);
} else if (val[0] === '$') { // ref (const)
return getColor(theme.props[val]);
} else if (val[0] === ':') { // func
const parts = val.split('<');
const func = parts.shift().substring(1);
const arg = parseFloat(parts.shift());
const color = getColor(parts.join('<'));
switch (func) {
case 'darken': return color.darken(arg);
case 'lighten': return color.lighten(arg);
case 'alpha': return color.setAlpha(arg);
case 'hue': return color.spin(arg);
case 'saturate': return color.saturate(arg);
}
}
// other case
return tinycolor(val);
}
const props = {};
for (const [k, v] of Object.entries(theme.props)) {
if (k.startsWith('$')) continue; // ignore const
if (k.startsWith('font')) { // font specs are different
props[k] = v;
continue;
}
props[k] = v.startsWith('"') ? v.replace(/^"\s*/, '') : genValue(getColor(v));
}
return props;
}
function genValue(c: tinycolor.Instance): string {
return c.toRgbString();
}
export function validateTheme(theme: Record<string, any>): boolean {
if (theme.id == null || typeof theme.id !== 'string') return false;
if (theme.name == null || typeof theme.name !== 'string') return false;
if (theme.base == null || !['light', 'dark'].includes(theme.base)) return false;
if (theme.props == null || typeof theme.props !== 'object') return false;
return true;
}
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