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| 1 | +// Simple Theme Toggle Implementation |
| 2 | +(function() { |
| 3 | + const THEME_KEY = 'site-theme'; |
| 4 | + console.log('Theme toggle script loaded'); |
| 5 | + |
| 6 | + // Apply theme to document |
| 7 | + function applyTheme(theme) { |
| 8 | + console.log('applyTheme called with:', theme); |
| 9 | + if (theme === 'dark') { |
| 10 | + document.documentElement.setAttribute('data-theme', 'dark'); |
| 11 | + } else { |
| 12 | + document.documentElement.removeAttribute('data-theme'); |
| 13 | + } |
| 14 | + updateToggleButton(theme); |
| 15 | + } |
| 16 | + |
| 17 | + // Update toggle button appearance |
| 18 | + function updateToggleButton(theme) { |
| 19 | + console.log('updateToggleButton called with:', theme); |
| 20 | + const toggle = document.getElementById('theme-toggle'); |
| 21 | + console.log('toggle element:', toggle); |
| 22 | + if (toggle) { |
| 23 | + const newHTML = theme === 'dark' ? '<span class="toggle-icon">☀️</span>' : '<span class="toggle-icon">🌙</span>'; |
| 24 | + console.log('Setting toggle HTML to:', newHTML); |
| 25 | + toggle.innerHTML = newHTML; |
| 26 | + } |
| 27 | + } |
| 28 | + |
| 29 | + // Toggle between dark and light theme |
| 30 | + function toggleTheme(e) { |
| 31 | + console.log('toggleTheme called, event:', e); |
| 32 | + e.preventDefault(); |
| 33 | + const currentTheme = document.documentElement.getAttribute('data-theme') || 'light'; |
| 34 | + console.log('currentTheme:', currentTheme); |
| 35 | + const newTheme = currentTheme === 'dark' ? 'light' : 'dark'; |
| 36 | + console.log('newTheme:', newTheme); |
| 37 | + localStorage.setItem(THEME_KEY, newTheme); |
| 38 | + applyTheme(newTheme); |
| 39 | + } |
| 40 | + |
| 41 | + // Initialize theme |
| 42 | + function initTheme() { |
| 43 | + console.log('initTheme called'); |
| 44 | + const savedTheme = localStorage.getItem(THEME_KEY); |
| 45 | + console.log('savedTheme from localStorage:', savedTheme); |
| 46 | + let theme; |
| 47 | + |
| 48 | + if (savedTheme) { |
| 49 | + // Use saved preference if available |
| 50 | + theme = savedTheme; |
| 51 | + console.log('Using saved theme:', theme); |
| 52 | + } else { |
| 53 | + // Check system preference (browser settings) |
| 54 | + const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches; |
| 55 | + console.log('System prefers dark mode:', prefersDark); |
| 56 | + theme = prefersDark ? 'dark' : 'light'; |
| 57 | + console.log('Using system theme:', theme); |
| 58 | + } |
| 59 | + |
| 60 | + console.log('theme to apply:', theme); |
| 61 | + applyTheme(theme); |
| 62 | + } |
| 63 | + |
| 64 | + // Listen for system theme changes |
| 65 | + function setupSystemThemeListener() { |
| 66 | + const darkModeQuery = window.matchMedia('(prefers-color-scheme: dark)'); |
| 67 | + darkModeQuery.addEventListener('change', (e) => { |
| 68 | + // Only apply system theme if user hasn't saved a preference |
| 69 | + if (!localStorage.getItem(THEME_KEY)) { |
| 70 | + const newTheme = e.matches ? 'dark' : 'light'; |
| 71 | + console.log('System theme changed to:', newTheme); |
| 72 | + applyTheme(newTheme); |
| 73 | + } |
| 74 | + }); |
| 75 | + } |
| 76 | + |
| 77 | + // Setup click handler |
| 78 | + function setupClickHandler() { |
| 79 | + console.log('setupClickHandler called'); |
| 80 | + const toggle = document.getElementById('theme-toggle'); |
| 81 | + console.log('toggle element found:', !!toggle); |
| 82 | + if (toggle) { |
| 83 | + console.log('Adding click listener to toggle button'); |
| 84 | + toggle.addEventListener('click', toggleTheme); |
| 85 | + console.log('Click listener added'); |
| 86 | + } else { |
| 87 | + console.log('ERROR: toggle element not found!'); |
| 88 | + } |
| 89 | + } |
| 90 | + |
| 91 | + // Initialize on page load |
| 92 | + function init() { |
| 93 | + console.log('init called'); |
| 94 | + initTheme(); |
| 95 | + setupClickHandler(); |
| 96 | + setupSystemThemeListener(); |
| 97 | + } |
| 98 | + |
| 99 | + // Run initialization |
| 100 | + console.log('document.readyState:', document.readyState); |
| 101 | + |
| 102 | + // Wait for navbar to be loaded first |
| 103 | + document.addEventListener('navbarLoaded', function() { |
| 104 | + console.log('navbarLoaded event received, initializing theme toggle'); |
| 105 | + setTimeout(init, 50); |
| 106 | + }); |
| 107 | + |
| 108 | + // Also try on DOMContentLoaded as fallback |
| 109 | + if (document.readyState === 'loading') { |
| 110 | + console.log('DOM still loading, waiting for DOMContentLoaded'); |
| 111 | + document.addEventListener('DOMContentLoaded', function() { |
| 112 | + console.log('DOMContentLoaded fired'); |
| 113 | + setTimeout(init, 100); |
| 114 | + }); |
| 115 | + } else { |
| 116 | + console.log('DOM already loaded, trying init'); |
| 117 | + setTimeout(init, 100); |
| 118 | + } |
| 119 | +})(); |
| 120 | + |
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