app-loading-simulator/index.html at main · autonomous-testing/app-loading-simulator · 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" />
    <title>App Loading Simulator</title>
    <style>
      :root {
        --bg: #0f172a; /* slate-900 */
        --fg: #e2e8f0; /* slate-200 */
        --muted: #94a3b8; /* slate-400 */
        --accent: #38bdf8; /* sky-400 */
        --accent-2: #f472b6; /* pink-400 */
      }

      html, body {
        height: 100%;
      }

      body {
        margin: 0;
        font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
        background: radial-gradient(1200px 800px at 10% 10%, rgba(56, 189, 248, 0.08), transparent),
                    radial-gradient(1200px 800px at 90% 90%, rgba(244, 114, 182, 0.08), transparent),
                    var(--bg);
        color: var(--fg);
        display: grid;
        place-items: center;
      }

      .wrap {
        display: grid;
        gap: 16px;
        justify-items: center;
        text-align: center;
        padding: 32px;
      }

      h1 {
        font-size: 1.5rem;
        margin: 0;
      }

      p { margin: 0; color: var(--muted); }

      /* Loading view */
      #loading { display: grid; gap: 16px; justify-items: center; }

      /* Showcase grid for multiple indicators */
      .showcase {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 16px;
        width: min(1000px, 92vw);
        margin-top: 8px;
      }
      .box {
        border: 1px solid rgba(226, 232, 240, 0.14);
        border-radius: 12px;
        padding: 12px;
        display: grid;
        gap: 8px;
        justify-items: center;
        background: rgba(2, 6, 23, 0.2);
      }
      .label { font-size: 0.8rem; color: var(--muted); }

      .spinner {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        border: 6px solid rgba(226, 232, 240, 0.2);
        border-top-color: var(--accent);
        border-right-color: var(--accent-2);
        animation: spin 1s linear infinite;
      }
      @keyframes spin { to { transform: rotate(360deg); } }

      /* 1) Dual ring */
      .dual-ring { display: inline-block; width: 56px; height: 56px; }
      .dual-ring::after {
        content: "";
        display: block;
        width: 44px; height: 44px; margin: 6px;
        border-radius: 50%;
        border: 6px solid transparent;
        border-top-color: var(--accent);
        border-right-color: var(--accent-2);
        animation: spin 1s linear infinite;
      }

      /* 2) Bouncing dots */
      .dots { display: inline-flex; gap: 8px; align-items: flex-end; height: 20px; }
      .dots > div {
        width: 10px; height: 10px; border-radius: 50%;
        background: var(--fg);
        animation: dots 0.9s infinite ease-in-out both;
      }
      .dots > div:nth-child(1) { animation-delay: 0s; }
      .dots > div:nth-child(2) { animation-delay: 0.15s; }
      .dots > div:nth-child(3) { animation-delay: 0.3s; }
      @keyframes dots {
        0%, 80%, 100% { transform: translateY(0) scale(0.8); opacity: 0.6; }
        40% { transform: translateY(-10px) scale(1); opacity: 1; }
      }

      /* 3) Pulse */
      .pulse { width: 56px; height: 56px; border-radius: 50%; background: var(--accent); opacity: 0.6; animation: pulse 1.5s infinite; }
      @keyframes pulse {
        0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56,189,248,0.7); }
        70% { transform: scale(1); box-shadow: 0 0 0 18px rgba(56,189,248,0); }
        100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56,189,248,0); }
      }

      /* 4) Indeterminate bar */
      .bar { position: relative; width: 120px; height: 8px; border-radius: 999px; background: rgba(226,232,240,0.18); overflow: hidden; }
      .bar::before {
        content: ""; position: absolute; inset: 0; width: 40%; left: -40%;
        background: linear-gradient(90deg, transparent, var(--accent), transparent);
        animation: bar 1.2s infinite;
      }
      @keyframes bar { to { left: 100%; } }

      /* 5) Ripple */
      .ripple { position: relative; width: 56px; height: 56px; }
      .ripple div { position: absolute; border: 4px solid var(--accent); opacity: 1; border-radius: 50%; animation: ripple 1.5s cubic-bezier(0,0.2,0.8,1) infinite; }
      .ripple div:nth-child(2) { border-color: var(--accent-2); animation-delay: -0.75s; }
      @keyframes ripple {
        0% { top: 24px; left: 24px; width: 0; height: 0; opacity: 1; }
        100% { top: -2px; left: -2px; width: 56px; height: 56px; opacity: 0; }
      }

      /* 6) Grid pulse */
      .grid { width: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
      .grid div { width: 16px; height: 16px; background: var(--accent); animation: grid 1.4s infinite ease-in-out; }
      .grid div:nth-child(odd) { background: var(--accent-2); }
      .grid div:nth-child(1) { animation-delay: 0.0s; }
      .grid div:nth-child(2) { animation-delay: 0.1s; }
      .grid div:nth-child(3) { animation-delay: 0.2s; }
      .grid div:nth-child(4) { animation-delay: 0.1s; }
      .grid div:nth-child(5) { animation-delay: 0.2s; }
      .grid div:nth-child(6) { animation-delay: 0.3s; }
      .grid div:nth-child(7) { animation-delay: 0.2s; }
      .grid div:nth-child(8) { animation-delay: 0.3s; }
      .grid div:nth-child(9) { animation-delay: 0.4s; }
      @keyframes grid { 0%, 100% { transform: scale(0.7); opacity: 0.6; } 50% { transform: scale(1); opacity: 1; } }

      /* 7) Wave bars */
      .wave { display: inline-flex; align-items: flex-end; gap: 4px; height: 40px; }
      .wave div { width: 6px; height: 12px; background: var(--accent); animation: wave 1.2s infinite ease-in-out; border-radius: 3px; }
      .wave div:nth-child(2) { animation-delay: 0.1s; }
      .wave div:nth-child(3) { animation-delay: 0.2s; }
      .wave div:nth-child(4) { animation-delay: 0.3s; }
      .wave div:nth-child(5) { animation-delay: 0.4s; }
      @keyframes wave { 0%, 40%, 100% { height: 12px; opacity: 0.7; } 20% { height: 38px; opacity: 1; } }

      /* 8) Roller dots */
      .roller { display: inline-block; position: relative; width: 56px; height: 56px; }
      .roller div { animation: roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite; transform-origin: 28px 28px; }
      .roller div::after { content: " "; display: block; position: absolute; width: 6px; height: 6px; border-radius: 50%; background: var(--fg); margin: -3px 0 0 -3px; }
      .roller div:nth-child(1) { animation-delay: -0.036s; }
      .roller div:nth-child(1)::after { top: 46px; left: 46px; }
      .roller div:nth-child(2) { animation-delay: -0.072s; }
      .roller div:nth-child(2)::after { top: 50px; left: 41px; }
      .roller div:nth-child(3) { animation-delay: -0.108s; }
      .roller div:nth-child(3)::after { top: 54px; left: 32px; }
      .roller div:nth-child(4) { animation-delay: -0.144s; }
      .roller div:nth-child(4)::after { top: 50px; left: 23px; }
      .roller div:nth-child(5) { animation-delay: -0.18s; }
      .roller div:nth-child(5)::after { top: 46px; left: 16px; }
      .roller div:nth-child(6) { animation-delay: -0.216s; }
      .roller div:nth-child(6)::after { top: 41px; left: 10px; }
      .roller div:nth-child(7) { animation-delay: -0.252s; }
      .roller div:nth-child(7)::after { top: 32px; left: 6px; }
      .roller div:nth-child(8) { animation-delay: -0.288s; }
      .roller div:nth-child(8)::after { top: 23px; left: 10px; }
      @keyframes roller { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

      /* 9) Hourglass (ring variant) */
      .hourglass { width: 56px; height: 56px; border-radius: 50%; border: 6px solid rgba(226,232,240,0.2); border-top-color: var(--accent); border-bottom-color: var(--accent-2); animation: hourglass 1.2s linear infinite; }
      @keyframes hourglass { 0% { transform: rotate(0deg);} 50% { transform: rotate(180deg);} 100% { transform: rotate(360deg);} }

      /* 10) Flip square */
      .flip { width: 36px; height: 36px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); animation: flip 1.2s infinite; }
      @keyframes flip {
        0% { transform: perspective(100px) rotateX(0) rotateY(0); }
        50% { transform: perspective(100px) rotateX(-180deg) rotateY(0); }
        100% { transform: perspective(100px) rotateX(-180deg) rotateY(-180deg); }
      }

      /* Loaded (static) view */
      #content { display: none; }

      /* Utility */
      .hidden { display: none !important; }
      .dim { color: var(--muted); font-size: 0.95rem; }
      .badge {
        display: inline-block;
        padding: 2px 8px;
        border: 1px solid rgba(226, 232, 240, 0.2);
        border-radius: 999px;
        font-size: 0.8rem;
        color: var(--muted);
      }

      /* Controls */
      #controls { display: grid; gap: 8px; justify-items: center; }
      .controls-form { display: inline-grid; grid-auto-flow: column; gap: 8px; align-items: center; }
      .controls-form input { width: 140px; padding: 6px 8px; border-radius: 8px; border: 1px solid rgba(226,232,240,0.25); background: rgba(2,6,23,0.25); color: var(--fg); }
      .controls-form button { padding: 6px 10px; border-radius: 8px; border: 1px solid rgba(226,232,240,0.25); background: rgba(2,6,23,0.25); color: var(--fg); cursor: pointer; }
      #quickLinks { display: flex; gap: 8px; flex-wrap: wrap; }
      #quickLinks a { color: var(--fg); opacity: 0.85; text-decoration: none; border: 1px solid rgba(226,232,240,0.18); border-radius: 999px; padding: 4px 8px; }
      #quickLinks a:hover { opacity: 1; border-color: rgba(226,232,240,0.35); }
    </style>
  </head>
  <body>
    <main class="wrap" aria-live="polite">
      <section id="controls" aria-label="Controls">
        <form id="durationForm" class="controls-form">
          <label for="durationInput" class="dim">Duration (ms)</label>
          <input id="durationInput" name="duration" type="number" min="0" step="100" inputmode="numeric" />
          <button type="submit">Set</button>
        </form>
        <div class="dim">Quick links:</div>
        <div id="quickLinks" aria-label="Preset durations"></div>
      </section>
      <section id="loading" role="status" aria-busy="true">
        <div class="spinner" aria-hidden="true"></div>
        <h1>Loading application…</h1>
        <p class="dim">Simulating startup delay</p>

        <div class="showcase" aria-hidden="true">
          <div class="box">
            <div class="dual-ring"></div>
            <div class="label">Dual Ring</div>
          </div>
          <div class="box">
            <div class="dots"><div></div><div></div><div></div></div>
            <div class="label">Bouncing Dots</div>
          </div>
          <div class="box">
            <div class="pulse"></div>
            <div class="label">Pulse</div>
          </div>
          <div class="box">
            <div class="bar"></div>
            <div class="label">Indeterminate Bar</div>
          </div>
          <div class="box">
            <div class="ripple"><div></div><div></div></div>
            <div class="label">Ripple</div>
          </div>
          <div class="box">
            <div class="grid">
              <div></div><div></div><div></div>
              <div></div><div></div><div></div>
              <div></div><div></div><div></div>
            </div>
            <div class="label">Grid Pulse</div>
          </div>
          <div class="box">
            <div class="wave"><div></div><div></div><div></div><div></div><div></div></div>
            <div class="label">Wave Bars</div>
          </div>
          <div class="box">
            <div class="roller">
              <div></div><div></div><div></div><div></div>
              <div></div><div></div><div></div><div></div>
            </div>
            <div class="label">Roller Dots</div>
          </div>
          <div class="box">
            <div class="hourglass"></div>
            <div class="label">Hourglass</div>
          </div>
          <div class="box">
            <div class="flip"></div>
            <div class="label">Flip</div>
          </div>
        </div>
      </section>

      <section id="content" aria-busy="false">
        <h1>Application Loaded</h1>
        <p class="dim">This is the static loaded state.</p>
      </section>
    </main>

    <script>
      (function () {
        const params = new URLSearchParams(window.location.search);
        const raw = params.get('duration');

        // Parse duration in milliseconds; default to 0 if absent/invalid
        let duration = Number.parseInt(raw, 10);
        if (!Number.isFinite(duration) || duration < 0) duration = 0;
        // Hard cap to avoid excessively long waits in case of mistakes
        const MAX_MS = 10 * 60 * 1000; // 10 minutes
        if (duration > MAX_MS) duration = MAX_MS;

        const loading = document.getElementById('loading');
        const content = document.getElementById('content');
        const durationInput = document.getElementById('durationInput');
        const durationForm = document.getElementById('durationForm');
        const quickLinks = document.getElementById('quickLinks');

        // Form field starts empty on load

        // Handle form submit to set new duration param
        if (durationForm && durationInput) {
          durationForm.addEventListener('submit', (e) => {
            e.preventDefault();
            const next = Number.parseInt(durationInput.value, 10);
            const ms = Number.isFinite(next) && next >= 0 ? next : 0;
            const url = new URL(window.location.href);
            url.searchParams.set('duration', String(ms));
            window.location.href = url.pathname + url.search;
          });
        }

        // Build quick links for common durations
        if (quickLinks) {
          const presets = [100, 250, 500, 1000, 2500, 5000, 10000, 15000, 20000, 30000];
          presets.forEach((ms) => {
            const a = document.createElement('a');
            a.href = `?duration=${ms}`;
            a.textContent = `${ms.toLocaleString()} ms`;
            quickLinks.appendChild(a);
          });
        }

        function showLoaded() {
          loading.classList.add('hidden');
          content.style.display = 'grid';
        }

        if (duration === 0) {
          showLoaded();
        } else {
          setTimeout(showLoaded, duration);
        }
      })();
    </script>
  </body>
  </html>