sam
71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
// Reads the saved theme from localStorage and applies it to <html> and the
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// preloader background before first paint. Runs as a blocking <script> so
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// there's no flash of the wrong theme.
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(function () {
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// Builtin themes — must match builtinThemes in src/themes.ts
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var builtins = {
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dark: { bg: 'hsl(0 0% 10%)', primary: 'hsl(15 90% 52%)' },
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light: { bg: 'hsl(0 0% 100%)', primary: 'hsl(15 90% 48%)' }
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};
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var theme = 'dark';
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var colors = builtins.dark;
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var cfg;
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try {
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cfg = JSON.parse(localStorage.getItem('nostr:app-config') || '{}');
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if (cfg.theme) theme = cfg.theme;
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} catch (e) {}
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// Resolve "system" to light or dark based on OS preference
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if (theme === 'system') {
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theme = window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
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}
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if (theme === 'custom') {
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// Custom theme: read colors from customTheme.colors (ThemeConfig format)
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try {
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var ct = cfg && cfg.customTheme;
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if (ct && ct.colors) {
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var bg = ct.colors.background;
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var pr = ct.colors.primary;
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if (bg && pr) {
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colors = { bg: 'hsl(' + bg + ')', primary: 'hsl(' + pr + ')' };
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}
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}
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} catch (e) {}
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} else if (theme === 'light' || theme === 'dark') {
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// Check for configured theme overrides (ThemesConfig in cfg.themes)
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try {
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var themes = cfg && cfg.themes;
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if (themes && themes[theme] && themes[theme].colors) {
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var tc = themes[theme].colors;
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if (tc.background && tc.primary) {
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colors = { bg: 'hsl(' + tc.background + ')', primary: 'hsl(' + tc.primary + ')' };
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} else {
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colors = builtins[theme];
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}
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} else {
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colors = builtins[theme];
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}
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} catch (e) {
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colors = builtins[theme];
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}
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} else {
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colors = builtins.dark;
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}
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document.documentElement.className = theme;
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document.body.style.background = colors.bg;
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var p = document.getElementById('preloader');
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if (p) {
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p.style.background = colors.bg;
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var logo = p.querySelector('[data-logo]');
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if (logo) logo.style.background = colors.primary;
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var spinner = p.querySelector('[data-spinner]');
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if (spinner) {
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spinner.style.borderColor = colors.primary.replace(')', ' / 0.25)');
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spinner.style.borderTopColor = colors.primary;
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}
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}
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})();
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