GramFrame/preview-trainer.html at main · DeepBlueCLtd/GramFrame · 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>GramFrame Trainer Demo</title>
    <style>
        body { font-family: Arial, sans-serif; margin: 20px; }
        .test-container { margin: 20px 0; }
        .note { background: #e8f5e9; padding: 15px; border-left: 4px solid #1b5e20; margin: 10px 0; }
        .badge { display: inline-block; padding: 3px 10px; border-radius: 4px; font-size: 13px; font-weight: bold; color: #fff; background: #1b5e20; vertical-align: middle; margin-left: 10px; }
        .nav { margin-bottom: 15px; font-size: 14px; }
        .nav a { color: #1a73e8; }
    </style>
</head>
<body>
    <h1>GramFrame Trainer Demo <span class="badge">localStorage</span></h1>

    <div class="nav">
        <a href="index.html">&larr; Back to demo index</a> | <a href="student.html">Student page (sessionStorage)</a>
        &nbsp;|&nbsp;
        <!-- This ANALYSIS link triggers trainer context detection -->
        <a href="#">ANALYSIS</a>
    </div>

    <div class="note">
        <strong>Trainer context:</strong> The "ANALYSIS" link above triggers <code>localStorage</code> persistence.
        Annotations survive browser restarts. A "Clear gram" button is available to reset.
    </div>

    <div class="test-container">
        <table class="gram-config">
            <tr>
                <td colspan="2"><img src="./mock-gram.png" alt="Mock Spectrogram" style="width: 800px; height: 400px;"></td>
            </tr>
            <tr><td>time-start</td><td>0</td></tr>
            <tr><td>time-end</td><td>10</td></tr>
            <tr><td>freq-start</td><td>0</td></tr>
            <tr><td>freq-end</td><td>50</td></tr>
        </table>
    </div>

    <div class="note">
        <strong>Test steps:</strong>
        <ol>
            <li>Add some markers in Cross Cursor mode</li>
            <li>Reload the page &mdash; markers should still be there</li>
            <li>Close and reopen the browser &mdash; markers should still be there</li>
            <li>Click "Clear gram" button &mdash; markers should be removed</li>
            <li>Reload &mdash; markers should stay gone</li>
        </ol>
    </div>

    <script src="./gramframe.bundle.js"></script>
</body>
</html>