48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
const themeToggle = document.querySelector('.theme-toggle');
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const html = document.documentElement;
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function updateLogoColor(theme) {
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const logoText = document.querySelector('#logo-text-cn');
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if (logoText) {
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logoText.setAttribute('fill', theme === 'dark' ? '#ffffff' : '#000000');
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}
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}
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function getPreferredTheme() {
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const savedTheme = localStorage.getItem('theme');
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if (savedTheme) {
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return savedTheme;
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}
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const systemPreference = window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
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return systemPreference;
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}
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function setTheme(theme) {
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html.setAttribute('data-theme', theme);
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localStorage.setItem('theme', theme);
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updateLogoColor(theme);
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}
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const initialTheme = getPreferredTheme();
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setTheme(initialTheme);
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if (themeToggle) {
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themeToggle.addEventListener('click', () => {
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const currentTheme = html.getAttribute('data-theme');
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const newTheme = currentTheme === 'dark' ? 'light' : 'dark';
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setTheme(newTheme);
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});
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}
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window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
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if (!localStorage.getItem('theme')) {
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const newTheme = e.matches ? 'dark' : 'light';
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setTheme(newTheme);
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}
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});
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window.addEventListener('load', () => {
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updateLogoColor(html.getAttribute('data-theme') || getPreferredTheme());
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});
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