robmc.github.io/mode-switcher.html at master · robmc/robmc.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Accessible Window Mode Toggle</title>
    <style>
        :root {
            --bg-light: #f4f7f6;
            --bg-dark: #0f172a;
            --window-border: #5d4037;
            --day-sky: #87CEEB;
            --night-sky: #1e293b;
            --focus-glow: #2563eb;
            --link-color: #2563eb;
        }

        body {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
            margin: 0;
            transition: background 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            background-color: var(--bg-light);
            font-family: 'Segoe UI', system-ui, sans-serif;
        }

        body.dark-mode {
            background-color: var(--bg-dark);
            color: #f1f5f9;
        }

        /* Adjust link colors for dark mode */
        body.dark-mode footer a {
            color: #94a3b8;
        }

        .window-container {
            text-align: center;
        }

        /* The Main Switch */
        .switch {
            position: relative;
            display: inline-block;
            width: 140px;
            height: 80px;
        }

        /* Visually hide the checkbox but keep it in the focus order */
        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
            position: absolute;
        }

        /* Focus State for Keyboard Users */
        .switch input:focus-visible + .slider {
            outline: 3px solid var(--focus-glow);
            outline-offset: 4px;
        }

        /* The Window Frame & Sky */
        .slider {
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-color: var(--day-sky);
            transition: 0.5s;
            border: 6px solid var(--window-border);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            cursor: pointer;
        }

        /* Window Panes - Increased z-index to 20 */
        .panes::before, .panes::after {
            content: "";
            position: absolute;
            background: var(--window-border);
            z-index: 20; /* Moved in front of the handle */
        }
        .panes::before { width: 100%; height: 4px; top: 50%; left: 0; transform: translateY(-50%); }
        .panes::after { height: 100%; width: 4px; left: 50%; top: 0; transform: translateX(-50%); }

        /* The Handle (Sun/Moon) - Decreased z-index to 15 (or lower) */
        .handle {
            position: absolute;
            height: 44px;
            width: 44px;
            left: 8px;
            top: 12px;
            background-color: #FFD700;
            transition: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            border-radius: 50%;
            z-index: 15; /* Now sits behind the panes */
            box-shadow: 0 0 20px #fff176;
        }

        /* Clouds */
        .cloud {
            position: absolute;
            background: white;
            border-radius: 50px;
            opacity: 0.8;
            transition: 0.5s;
            z-index: 5;
        }
        .cloud::before, .cloud::after {
            content: '';
            position: absolute;
            background: white;
            border-radius: 50%;
        }

        .c1 { width: 40px; height: 15px; top: 15px; left: 10px; animation: float 4s infinite ease-in-out; }
        .c1::before { width: 20px; height: 20px; top: -10px; left: 5px; }
        .c1::after { width: 15px; height: 15px; top: -7px; left: 18px; }

        .c2 { width: 30px; height: 10px; top: 45px; left: 70px; animation: float 6s infinite ease-in-out reverse; }
        .c2::before { width: 15px; height: 15px; top: -8px; left: 4px; }

        @keyframes float {
            0%, 100% { transform: translateX(0); }
            50% { transform: translateX(10px); }
        }

        /* Stars */
        .stars {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 100%;
            left: 0;
            transition: 0.5s;
            background-image:
                radial-gradient(1px 1px at 20px 30px, white, transparent),
                radial-gradient(1px 1px at 50px 10px, white, transparent),
                radial-gradient(2px 2px at 80px 50px, white, transparent),
                radial-gradient(1px 1px at 110px 20px, white, transparent);
            z-index: 4;
        }

        /* Dark Mode Activations */
        input:checked + .slider { background-color: var(--night-sky); }

        input:checked + .slider .handle {
            transform: translateX(68px);
            background-color: #e2e8f0;
            box-shadow: 0 0 15px rgba(255,255,255,0.4);
        }

        input:checked + .slider .stars { top: 0; }
        input:checked + .slider .cloud { opacity: 0; transform: translateY(-20px); }

        .label-text {
            margin-top: 25px;
            font-size: 1.1rem;
            font-weight: 600;
        }

        footer {
            margin-top: 40px;
            font-size: 0.9rem;
        }

        footer a {
            color: var(--focus-glow);
            text-decoration: none;
            transition: color 0.3s;
        }

        footer a:hover {
            text-decoration: underline;
        }
    </style>
</head>
<body>

    <div class="window-container">
        <label class="switch">
            <input type="checkbox"
                   id="mode-toggle"
                   aria-label="Currently Light Mode - Switch to Dark Mode"
                   role="button">
            <span class="slider">
                <span class="panes" aria-hidden="true"></span>
                <span class="cloud c1" aria-hidden="true"></span>
                <span class="cloud c2" aria-hidden="true"></span>
                <span class="stars" aria-hidden="true"></span>
                <span class="handle" aria-hidden="true"></span>
            </span>
        </label>

        <div class="label-text">
            Current Theme: <span id="mode-status">Light Mode</span>
        </div>

        <footer>
            <a href="http://robertjmccaffery.com/examples.html">Back to Examples</a> |
            <a href="http://robertjmccaffery.com/">Home</a>
        </footer>
    </div>

    <script>
        const toggle = document.getElementById('mode-toggle');
        const body = document.body;
        const status = document.getElementById('mode-status');

        toggle.addEventListener('change', () => {
            const isDark = toggle.checked;

            // Update the visual theme
            body.classList.toggle('dark-mode', isDark);

            // Update the label to describe the NEXT action
            // If it's currently dark, the button should say "Switch to Light Mode"
            const nextMode = isDark ? "Currently Dark Mode - Switch to Light Mode" : "Currently Light Mode - Switch to Dark Mode";
            toggle.setAttribute('aria-label', nextMode);

            // Update the visual status text
            status.textContent = isDark ? "Dark Mode" : "Light Mode";
        });
    </script>
</body>
</html>