mcp-server-pixeltable-developer/canvas.html at main · pixeltable/mcp-server-pixeltable-developer · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>Pixeltable Canvas</title>
    <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.1/dist/chart.umd.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.min.js"></script>
    <script>
        // Initialize Mermaid with dark theme
        mermaid.initialize({
            startOnLoad: false,
            theme: 'dark',
            themeVariables: {
                darkMode: true,
                background: '#1a1a1a',
                primaryColor: '#4ade80',
                primaryTextColor: '#fff',
                primaryBorderColor: '#333',
                lineColor: '#666',
                secondaryColor: '#60a5fa',
                tertiaryColor: '#a78bfa'
            }
        });
    </script>
    <style>
        body {
            font-family: sans-serif;
            padding: 20px;
            background: #1a1a1a;
            color: #fff;
            margin: 0;
        }
        #status {
            position: fixed;
            top: 10px;
            right: 10px;
            padding: 10px 20px;
            background: #2a2a2a;
            border-radius: 5px;
            font-size: 14px;
        }
        #canvas {
            margin-top: 60px;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .item {
            margin: 20px 0;
            padding: 20px;
            background: #2a2a2a;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.3);
        }
        .item img {
            max-width: 100%;
            height: auto;
            border-radius: 4px;
            display: block;
        }
        .item table {
            border-collapse: collapse;
            width: 100%;
            margin-top: 10px;
        }
        .item th, .item td {
            padding: 12px;
            border: 1px solid #444;
            text-align: left;
        }
        .item th {
            background: #333;
            font-weight: 600;
        }
        .item pre {
            background: #1a1a1a;
            padding: 15px;
            border-radius: 4px;
            overflow-x: auto;
            font-family: 'Courier New', monospace;
        }
        h1 {
            margin-top: 0;
            text-align: center;
        }
        .image-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
            margin-top: 10px;
        }
        .image-grid img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 4px;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .image-grid img:hover {
            transform: scale(1.05);
        }
        .comparison {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .comparison-item {
            text-align: center;
        }
        .comparison-item h3 {
            margin-top: 0;
            margin-bottom: 10px;
            color: #888;
            font-size: 14px;
        }
        video, audio {
            max-width: 100%;
            border-radius: 4px;
        }
        .chart-container {
            position: relative;
            height: 400px;
            margin-top: 10px;
        }
    </style>
</head>
<body>
    <h1>Pixeltable Canvas</h1>
    <div id="status">Connecting...</div>
    <div id="canvas"></div>

    <script>
        // Connect to MCP canvas stream
        // CHANGE THIS URL if your MCP is running on a different port
        const eventSource = new EventSource('http://localhost:8000/canvas/stream');
        const canvas = document.getElementById('canvas');
        const status = document.getElementById('status');

        eventSource.onopen = () => {
            status.textContent = 'Connected ✓';
            status.style.color = '#4ade80';
        };

        eventSource.onerror = () => {
            status.textContent = 'Disconnected ✗';
            status.style.color = '#f87171';
        };

        eventSource.onmessage = (event) => {
            // Mark as connected when we receive any message
            if (status.textContent !== 'Connected ✓') {
                status.textContent = 'Connected ✓';
                status.style.color = '#4ade80';
            }

            const message = JSON.parse(event.data);

            if (message.type === 'connected') {
                console.log('Canvas connected to MCP');
                return;
            }

            const item = document.createElement('div');
            item.className = 'item';

            // Add title if provided
            if (message.title) {
                const title = document.createElement('h3');
                title.textContent = message.title;
                title.style.margin = '0 0 15px 0';
                title.style.textAlign = 'center';
                title.style.color = '#fff';
                title.style.fontSize = '18px';
                title.style.fontWeight = '600';
                title.style.borderBottom = '2px solid #444';
                title.style.paddingBottom = '10px';
                item.appendChild(title);
            }

            switch(message.content_type) {
                case 'image':
                    const img = document.createElement('img');
                    img.src = message.data;
                    img.onerror = () => {
                        // If image fails to load, show error
                        item.innerHTML = `<p style="color: #f87171;">Failed to load image: ${message.data}</p>`;
                    };
                    item.appendChild(img);
                    break;

                case 'text':
                    const text = document.createElement('p');
                    text.textContent = message.data;
                    text.style.margin = '0';
                    text.style.fontSize = '16px';
                    text.style.lineHeight = '1.6';
                    item.appendChild(text);
                    break;

                case 'html':
                    item.innerHTML = message.data;
                    break;

                case 'table':
                    const table = document.createElement('table');
                    // Assume data is array of objects
                    if (Array.isArray(message.data) && message.data.length > 0) {
                        const headers = Object.keys(message.data[0]);
                        const thead = table.createTHead();
                        const headerRow = thead.insertRow();
                        headers.forEach(h => {
                            const th = document.createElement('th');
                            th.textContent = h;
                            headerRow.appendChild(th);
                        });
                        const tbody = table.createTBody();
                        message.data.forEach(row => {
                            const tr = tbody.insertRow();
                            headers.forEach(h => {
                                const td = tr.insertCell();
                                const value = row[h];

                                // Check if value is a URL (starts with http:// or file://)
                                if (typeof value === 'string' && (value.startsWith('http://') || value.startsWith('https://') || value.startsWith('file://'))) {
                                    // Check if it's an audio file
                                    if (value.match(/\.(mp3|wav|ogg|m4a)$/i)) {
                                        const audioEl = document.createElement('audio');
                                        audioEl.controls = true;
                                        audioEl.src = value;
                                        audioEl.style.width = '100%';
                                        td.appendChild(audioEl);
                                    }
                                    // Check if it's an image file
                                    else if (value.match(/\.(jpg|jpeg|png|gif|webp)$/i)) {
                                        const imgEl = document.createElement('img');
                                        imgEl.src = value;
                                        imgEl.style.maxWidth = '200px';
                                        imgEl.style.height = 'auto';
                                        td.appendChild(imgEl);
                                    }
                                    // Check if it's a video file
                                    else if (value.match(/\.(mp4|webm|ogg)$/i)) {
                                        const videoEl = document.createElement('video');
                                        videoEl.controls = true;
                                        videoEl.src = value;
                                        videoEl.style.maxWidth = '300px';
                                        td.appendChild(videoEl);
                                    }
                                    else {
                                        // Just a regular URL, show as link
                                        const link = document.createElement('a');
                                        link.href = value;
                                        link.textContent = value;
                                        link.target = '_blank';
                                        td.appendChild(link);
                                    }
                                } else {
                                    // Regular text value
                                    td.textContent = value;
                                }
                            });
                        });
                        item.appendChild(table);
                    } else {
                        item.innerHTML = '<p>Invalid table data</p>';
                    }
                    break;

                case 'json':
                    const pre = document.createElement('pre');
                    pre.textContent = JSON.stringify(message.data, null, 2);
                    item.appendChild(pre);
                    break;

                case 'chart':
                    // Chart.js visualization
                    // data format: { type: 'bar'|'line'|'pie'|'scatter', chartData: {...}, options: {...} }
                    const chartContainer = document.createElement('div');
                    chartContainer.className = 'chart-container';
                    const chartCanvas = document.createElement('canvas');
                    chartContainer.appendChild(chartCanvas);
                    item.appendChild(chartContainer);

                    new Chart(chartCanvas, {
                        type: message.data.type || 'bar',
                        data: message.data.chartData,
                        options: {
                            ...message.data.options,
                            responsive: true,
                            maintainAspectRatio: false,
                            plugins: {
                                legend: {
                                    labels: { color: '#fff' }
                                }
                            },
                            scales: message.data.type !== 'pie' ? {
                                x: { ticks: { color: '#888' }, grid: { color: '#333' } },
                                y: { ticks: { color: '#888' }, grid: { color: '#333' } }
                            } : undefined
                        }
                    });
                    break;

                case 'image_grid':
                    // Grid of images
                    // data format: [{ url: '...', caption: '...' }, ...]
                    const grid = document.createElement('div');
                    grid.className = 'image-grid';
                    message.data.forEach(imgData => {
                        const gridImg = document.createElement('img');
                        gridImg.src = imgData.url || imgData;
                        if (imgData.caption) {
                            gridImg.title = imgData.caption;
                        }
                        gridImg.onclick = () => {
                            // Show full size on click
                            const fullView = window.open('', '_blank');
                            fullView.document.write(`<img src="${gridImg.src}" style="max-width:100%; height:auto;">`);
                        };
                        grid.appendChild(gridImg);
                    });
                    item.appendChild(grid);
                    break;

                case 'comparison':
                    // Side-by-side comparison
                    // data format: { left: { type: 'image'|'text', data: '...' }, right: {...}, leftLabel: '...', rightLabel: '...' }
                    const comparison = document.createElement('div');
                    comparison.className = 'comparison';

                    ['left', 'right'].forEach(side => {
                        const compItem = document.createElement('div');
                        compItem.className = 'comparison-item';

                        const label = document.createElement('h3');
                        label.textContent = message.data[`${side}Label`] || side.toUpperCase();
                        compItem.appendChild(label);

                        const content = message.data[side];
                        if (content.type === 'image') {
                            const compImg = document.createElement('img');
                            compImg.src = content.data;
                            compItem.appendChild(compImg);
                        } else if (content.type === 'text') {
                            const compText = document.createElement('p');
                            compText.textContent = content.data;
                            compItem.appendChild(compText);
                        }

                        comparison.appendChild(compItem);
                    });
                    item.appendChild(comparison);
                    break;

                case 'video':
                    // Video player
                    const video = document.createElement('video');
                    video.controls = true;
                    video.src = message.data;
                    item.appendChild(video);
                    break;

                case 'audio':
                    // Audio player
                    const audio = document.createElement('audio');
                    audio.controls = true;
                    audio.src = message.data;
                    item.appendChild(audio);
                    break;

                case 'mermaid':
                    // Mermaid diagram
                    // data format: string with mermaid syntax
                    const mermaidDiv = document.createElement('div');
                    mermaidDiv.className = 'mermaid';
                    mermaidDiv.textContent = message.data;
                    item.appendChild(mermaidDiv);

                    // Render the mermaid diagram
                    mermaid.run({
                        nodes: [mermaidDiv]
                    });
                    break;

                default:
                    // Fallback: display as JSON
                    const fallback = document.createElement('pre');
                    fallback.textContent = JSON.stringify(message, null, 2);
                    item.appendChild(fallback);
            }

            // Add timestamp
            const timestamp = document.createElement('div');
            timestamp.style.fontSize = '12px';
            timestamp.style.color = '#888';
            timestamp.style.marginTop = '10px';
            timestamp.textContent = new Date().toLocaleTimeString();
            item.appendChild(timestamp);

            // Insert at top (most recent first)
            canvas.insertBefore(item, canvas.firstChild);
        };

        // Log connection info
        console.log('Pixeltable Canvas initialized');
        console.log('Connecting to: http://localhost:8000/canvas/stream');
        console.log('Waiting for messages from Claude...');
    </script>
</body>
</html>