MediaWiki:Common.js: Difference between revisions

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 /* Any JavaScript here will be loaded for all users on every page load. */
+/* Any JavaScript here will be loaded for all users on every page load. */
+/**
+ * Night Mode Toggle for Minerva Neue
+ * Theme is applied early via LocalSettings.php hook to prevent FOUC
+ * This script just adds the toggle button
+ */
+(function () {
+    'use strict';
+    var STORAGE_KEY = 'minerva-night-mode';
+    // SVG icons (20x20)
+    var MOON_SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path></svg>';
+    var SUN_SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"></circle><line x1="12" y1="1" x2="12" y2="3"></line><line x1="12" y1="21" x2="12" y2="23"></line><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line><line x1="1" y1="12" x2="3" y2="12"></line><line x1="21" y1="12" x2="23" y2="12"></line><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line></svg>';
+    /**
+     * Detect OS color scheme preference
+     */
+    function getOSPreference() {
+        if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+            return 'night';
+        }
+        return 'day';
+    }
+    /**
+     * Get saved theme, or detect from OS on first visit
+     */
+    function getSavedTheme() {
+        try {
+            var saved = localStorage.getItem(STORAGE_KEY);
+            if (saved) {
+                return saved;
+            }
+            // First visit: detect OS preference and save it
+            var osPreference = getOSPreference();
+            localStorage.setItem(STORAGE_KEY, osPreference);
+            return osPreference;
+        } catch (e) {
+            return getOSPreference();
+        }
+    }
+    function saveTheme(theme) {
+        try {
+            localStorage.setItem(STORAGE_KEY, theme);
+        } catch (e) {}
+    }
+    function applyTheme(theme) {
+        var html = document.documentElement;
+        html.classList.remove('skin-theme-clientpref-day', 'skin-theme-clientpref-night');
+        html.classList.add('skin-theme-clientpref-' + theme);
+    }
+    function updateButtonState(button, theme) {
+        var icon = button.querySelector('.nightmode-icon');
+        if (theme === 'night') {
+            icon.innerHTML = SUN_SVG;
+            button.setAttribute('title', 'Switch to light mode');
+        } else {
+            icon.innerHTML = MOON_SVG;
+            button.setAttribute('title', 'Switch to dark mode');
+        }
+    }
+    function createToggleButton() {
+        var currentTheme = getSavedTheme();
+        var li = document.createElement('li');
+        var button = document.createElement('a');
+        button.setAttribute('role', 'button');
+        button.setAttribute('href', '#');
+        button.id = 'ca-nightmode';
+        button.className = 'cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet';
+        button.style.cursor = 'pointer';
+        var icon = document.createElement('span');
+        icon.className = 'nightmode-icon';
+        icon.style.cssText = 'display:flex;align-items:center;justify-content:center;width:20px;height:20px;';
+        var label = document.createElement('span');
+        label.className = 'sr-only';
+        label.style.cssText = 'position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;';
+        label.textContent = currentTheme === 'night' ? 'Light mode' : 'Dark mode';
+        button.appendChild(icon);
+        button.appendChild(label);
+        li.appendChild(button);
+        updateButtonState(button, currentTheme);
+        button.addEventListener('click', function (e) {
+            e.preventDefault();
+            var newTheme = getSavedTheme() === 'night' ? 'day' : 'night';
+            saveTheme(newTheme);
+            applyTheme(newTheme);
+            updateButtonState(button, newTheme);
+        });
+        return li;
+    }
+    function insertButton() {
+        var notificationsList = document.querySelector('.minerva-notifications ul');
+        if (notificationsList) {
+            notificationsList.appendChild(createToggleButton());
+        } else {
+            var userNav = document.querySelector('.minerva-user-navigation');
+            if (userNav) {
+                var container = document.createElement('div');
+                container.className = 'minerva-notifications';
+                var ul = document.createElement('ul');
+                ul.appendChild(createToggleButton());
+                container.appendChild(ul);
+                userNav.insertBefore(container, userNav.firstChild);
+            }
+        }
+    }
+    // Insert button when DOM is ready
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', insertButton);
+    } else {
+        insertButton();
+    }
+})();