|
| 1 | +<script> |
| 2 | +(function() { |
| 3 | + var storageKey = "mcp-ruby-sdk-docs-theme"; |
| 4 | + var validPreferences = ["system", "light", "dark"]; |
| 5 | + var preferenceLabels = { |
| 6 | + system: "System", |
| 7 | + light: "Light", |
| 8 | + dark: "Dark" |
| 9 | + }; |
| 10 | + var mediaQuery = window.matchMedia ? |
| 11 | + window.matchMedia("(prefers-color-scheme: dark)") : |
| 12 | + { matches: false }; |
| 13 | + |
| 14 | + function isValidPreference(preference) { |
| 15 | + return validPreferences.indexOf(preference) !== -1; |
| 16 | + } |
| 17 | + |
| 18 | + function getStoredPreference() { |
| 19 | + try { |
| 20 | + var preference = window.localStorage.getItem(storageKey); |
| 21 | + return isValidPreference(preference) ? preference : "system"; |
| 22 | + } catch (error) { |
| 23 | + return "system"; |
| 24 | + } |
| 25 | + } |
| 26 | + |
| 27 | + function savePreference(preference) { |
| 28 | + try { |
| 29 | + window.localStorage.setItem(storageKey, preference); |
| 30 | + } catch (error) { |
| 31 | + /* Ignore storage errors so private browsing modes still get theme switching. */ |
| 32 | + } |
| 33 | + } |
| 34 | + |
| 35 | + function resolvedTheme(preference) { |
| 36 | + if (preference === "dark" || preference === "light") { |
| 37 | + return preference; |
| 38 | + } |
| 39 | + |
| 40 | + return mediaQuery.matches ? "dark" : "light"; |
| 41 | + } |
| 42 | + |
| 43 | + function nextPreference(preference) { |
| 44 | + var index = validPreferences.indexOf(preference); |
| 45 | + if (index === -1 || index === validPreferences.length - 1) { |
| 46 | + return validPreferences[0]; |
| 47 | + } |
| 48 | + |
| 49 | + return validPreferences[index + 1]; |
| 50 | + } |
| 51 | + |
| 52 | + function setThemeToggleLabel(preference) { |
| 53 | + var buttons = document.querySelectorAll("[data-theme-toggle]"); |
| 54 | + var label = "Theme: " + preferenceLabels[preference]; |
| 55 | + for (var index = 0; index < buttons.length; index += 1) { |
| 56 | + buttons[index].setAttribute("aria-label", label); |
| 57 | + buttons[index].setAttribute("title", label); |
| 58 | + } |
| 59 | + } |
| 60 | + |
| 61 | + function applyPreference(preference) { |
| 62 | + var safePreference = isValidPreference(preference) ? preference : "system"; |
| 63 | + var theme = resolvedTheme(safePreference); |
| 64 | + |
| 65 | + if (window.jtd && typeof window.jtd.setTheme === "function") { |
| 66 | + window.jtd.setTheme(theme); |
| 67 | + } |
| 68 | + document.documentElement.setAttribute("data-theme-preference", safePreference); |
| 69 | + document.documentElement.setAttribute("data-theme", theme); |
| 70 | + setThemeToggleLabel(safePreference); |
| 71 | + } |
| 72 | + |
| 73 | + window.mcpDocsTheme = { |
| 74 | + apply: applyPreference, |
| 75 | + getPreference: getStoredPreference, |
| 76 | + save: function(preference) { |
| 77 | + var safePreference = isValidPreference(preference) ? preference : "system"; |
| 78 | + savePreference(safePreference); |
| 79 | + applyPreference(safePreference); |
| 80 | + } |
| 81 | + }; |
| 82 | + |
| 83 | + applyPreference(getStoredPreference()); |
| 84 | + |
| 85 | + function initThemeToggle() { |
| 86 | + var buttons = document.querySelectorAll("[data-theme-toggle]"); |
| 87 | + if (buttons.length === 0) { |
| 88 | + return; |
| 89 | + } |
| 90 | + |
| 91 | + setThemeToggleLabel(getStoredPreference()); |
| 92 | + for (var index = 0; index < buttons.length; index += 1) { |
| 93 | + buttons[index].addEventListener("click", function() { |
| 94 | + window.mcpDocsTheme.save(nextPreference(getStoredPreference())); |
| 95 | + }); |
| 96 | + } |
| 97 | + } |
| 98 | + |
| 99 | + if (document.readyState === "loading") { |
| 100 | + document.addEventListener("DOMContentLoaded", initThemeToggle); |
| 101 | + } else { |
| 102 | + initThemeToggle(); |
| 103 | + } |
| 104 | + |
| 105 | + function applySystemPreference() { |
| 106 | + if (getStoredPreference() === "system") { |
| 107 | + applyPreference("system"); |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + if (mediaQuery.addEventListener) { |
| 112 | + mediaQuery.addEventListener("change", applySystemPreference); |
| 113 | + } else if (mediaQuery.addListener) { |
| 114 | + mediaQuery.addListener(applySystemPreference); |
| 115 | + } |
| 116 | +})(); |
| 117 | +</script> |
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