rays
9c16408d04
- users.theme and users.theme_mode, added by migrate(); GET /api/me returns them and PATCH /api/me saves them, refusing anything but a plain name and light/dark/auto, since index() writes them into the page's <html> tag. - The page arrives with data-theme and data-choice already on <html> (and data-mode unless Auto), so it is drawn in the account's theme from the start. - A theme a browser kept in localStorage goes up to the account once, the first time an account with none loads the page. - Saves go one at a time, each with the choice as it stands: sent all at once, a quick run through the list could land out of order and keep a theme passed on the way. The browser test caught it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
59 lines
3.2 KiB
TypeScript
59 lines
3.2 KiB
TypeScript
/* ---------------- theme ---------------- */
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// A theme, and for those that come in both, light, dark or Auto, chosen in Settings and kept on
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// the account, so it follows you to another browser or computer. The server writes it onto the
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// page's <html> tag (data-theme, data-choice) so the page is drawn in it from the start. The
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// page gets data-mode, light or dark, which is all the CSS reads: Auto is worked out here, from
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// the system, so no palette is written twice.
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const THEMES: Record<string, {name: string, modes: boolean}> = {
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modern: {name: 'Modern', modes: true},
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classic: {name: 'Classic, the 2004 Mac app', modes: false},
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dracula: {name: 'Dracula', modes: true},
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material: {name: 'Material', modes: true},
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adwaita: {name: 'Adwaita', modes: true},
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flatremix: {name: 'Flat Remix', modes: true},
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paper: {name: 'Paper', modes: false},
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nordic: {name: 'Nordic', modes: true},
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};
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const MODES: Record<string, string> = {auto: 'Auto (matches your system)', light: 'Light', dark: 'Dark'};
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// Before themes came in light and dark, ipx.theme in localStorage held one of these.
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const OLD_THEMES: Record<string, [string, string]> = {dark: ['modern', 'dark'], light: ['modern', 'light'], auto: ['modern', 'auto']};
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const systemDark = window.matchMedia?.('(prefers-color-scheme: dark)');
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const theme = {name: 'modern', mode: 'dark'};
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/// `save` for a choice made in Settings, which goes to the account; not for applying one.
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function setTheme(name = theme.name, mode = theme.mode, save = false){
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theme.name = THEMES[name] ? name : 'modern';
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theme.mode = MODES[mode] ? mode : 'dark';
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const both = THEMES[theme.name].modes;
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const root = document.documentElement;
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root.dataset.theme = theme.name;
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// A theme with one palette has it whatever the mode; both of those are light.
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root.dataset.mode = !both ? 'light'
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: theme.mode === 'auto' ? (systemDark && !systemDark.matches ? 'light' : 'dark') : theme.mode;
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const sel = $('#stheme'); if(sel) sel.value = theme.name;
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const ms = $('#smode'); if(ms) ms.value = theme.mode;
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const mf = $('#smodefield'); if(mf) mf.hidden = !both;
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if(save) saveTheme();
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}
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/// One save at a time, each sending the choice as it stands when it goes. Sent as they came,
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/// several at once, a quick run through the list could reach the server out of order and
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/// leave the account on a theme passed on the way.
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let themeSaving = Promise.resolve();
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function saveTheme(){
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themeSaving = themeSaving
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.then(() => api('/api/me', {method: 'PATCH', body: JSON.stringify({theme: theme.name, mode: theme.mode})}))
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.catch(e => toast(`Your theme was not saved: ${e.message}`, true));
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}
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systemDark?.addEventListener?.('change', () => { if(theme.mode === 'auto') setTheme(); });
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(() => {
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const root = document.documentElement;
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if(root.dataset.choice) return setTheme(root.dataset.theme, root.dataset.choice);
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// Nothing on the account yet. A theme this browser kept, from before themes were kept on the
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// account, goes up to it once, so nobody has to choose again.
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let name: string | null = null, mode: string | null = null;
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try{ name = localStorage.getItem('ipx.theme'); mode = localStorage.getItem('ipx.mode'); }catch{}
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if(OLD_THEMES[name]) [name, mode] = OLD_THEMES[name];
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setTheme(name ?? undefined, mode ?? undefined, !!name);
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})();
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