peer_js/screen_share.html at main · blackshadow-software/peer_js · GitHub

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<!DOCTYPE html>
<html>

<head>
  <title>PeerJS Screen Share Client</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      max-width: 800px;
      margin: 0 auto;
      padding: 20px;
    }

    .header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
      background-color: #f0f0f0;
      padding-left: 20px;
      border-radius: 20px;
    }

    .status-container {
      margin: 10px 0;
    }

    .status {
      font-weight: bold;
      margin: 10px 0;
    }

    .video-container {
      display: flex;
      gap: 10px;
    }

    #my-video {
      width: min(100%, 500px);
      border: 0px solid #696969;
      background-color: #dfdfdf;
      border-radius: 5px;
    }

    .controls {
      /* margin-top: 10px; */
      border-radius: 20px;
    }

    button {
      padding: 8px 16px;
      background-color: #4CAF50;
      color: white;
      border: none;
      border-radius: 20px;
      cursor: pointer;
      margin-right: 10px;
    }

    button:hover {
      background-color: #45a049;
    }

    button:disabled {
      background-color: #cccccc;
      cursor: not-allowed;
    }

    .sharing-active {
      background-color: #ff4d4d;
    }

    .sharing-active:hover {
      background-color: #e60000;
    }

    .copy-btn {
      background-color: #2196F3;
      padding-left: 10px;
      padding-right: 10px;
      border-radius: 20px;
    }

    .copy-btn:hover {
      background-color: #0b7dda;
    }

    .connection-info {
      border: 1px solid #ddd;
      padding-left: 20px;
      border-radius: 20px;
      padding: 5px 5px 5px 20px;
      background-color: #f9f9f9;
      margin-bottom: 10px;
    }

    .id-display {
      display: flex;
      align-items: center;
      gap: 10px;
    }
  </style>
</head>

<body>
  <div class="header">
    <h2>PeerJS Client</h2>
    <div class="id-display">
      <div><strong>Your Client ID:</strong> <span id="my-id">...</span></div>
      <button class="copy-btn" onclick="copyClientId()">Copy ID</button>
    </div>
  </div>

  <div class="status-container">
    <div class="status">Connection: <span id="connection-status">Connecting to server...</span></div>
    <div class="status">Sharing Status: <span id="sharing-status">Not sharing</span></div>
  </div>

  <div class="header">
    <h2>My Screen (Preview)</h2>
    <div class="controls">
      <button id="stop-sharing-btn" onclick="stopSharing()" disabled>Stop Sharing</button>
    </div>
  </div>

  <div class="video-container">
    <video id="my-video" autoplay muted playsinline></video>
  </div>

  <script src="https://unpkg.com/peerjs@1.5.2/dist/peerjs.min.js"></script>

  <script>
    function getOrCreateClientId() {
      const savedId = localStorage.getItem('peerjs_client_id');
      if (savedId) return savedId;

      const now = new Date();
      const datePart = now.toISOString().slice(0, 10).replace(/-/g, ''); // e.g. 20250413
      const timePart = now.toTimeString().split(' ')[0].replace(/:/g, ''); // e.g. 153205
      const millis = now.getMilliseconds().toString();
      const peerId = `Client_${datePart}${timePart}${millis}`;

      localStorage.setItem('peerjs_client_id', peerId);
      return peerId;
    }

    const clientId = getOrCreateClientId();
    const peer = new Peer(clientId, {
      host: '<YOUR_PEER_SERVER_IP>', // Replace with your PeerJS server IP or domain
      port: 9000,
      path: '/myapp',
      config: {
        iceServers: [
          { url: 'stun:stun.l.google.com:19302' },
          // IF YOU USE COTURN, USE SAME IP FOR STUN AND TURN
          { url: 'stun:<YOUR_TURN_SERVER_IP>:3478' }, // Replace with your STUN server IP
          {
            url: 'turn:<YOUR_TURN_SERVER_IP>:3478', // Replace with your TURN server IP
            username: '<USER_NAME>', // Replace with your TURN server username
            credential: '<PASSWORD>' // Replace with your TURN server password
          }]
      }
    });

    let currentCall;
    let localStream = null;

    // Connection handling
    peer.on('open', async (id) => {
      await initLocalStream();
      document.getElementById('my-id').textContent = id;
      document.getElementById('connection-status').textContent = 'Connected to server';
      document.getElementById('connection-status').style.color = 'green';
    });

    peer.on('error', (err) => {
      document.getElementById('connection-status').textContent = `Error: ${err.type}`;
      document.getElementById('connection-status').style.color = 'red';
      console.error('PeerJS error:', err);
    });

    peer.on('disconnected', () => {
      document.getElementById('connection-status').textContent = 'Disconnected from server';
      document.getElementById('connection-status').style.color = 'orange';
    });

    // Automatically answer calls with screen share
    peer.on('call', async (call) => {
      await initLocalStream();
      startScreenShare(call);
    });

    function startScreenShare(call) {

      document.getElementById('my-video').srcObject = localStream;

      // Answer the call with our screen stream
      call.answer(localStream);

      // Update UI to show we're sharing
      document.getElementById('sharing-status').textContent = 'Sharing screen with admin';
      document.getElementById('sharing-status').style.color = 'red';
      document.getElementById('stop-sharing-btn').disabled = false;

      // Handle when screen sharing is stopped by the user through the browser UI
      stream.getVideoTracks()[0].addEventListener('ended', () => {
        stopSharing();
      });

      currentCall = call;

      // Handle call ending
      call.on('close', () => {
        stopSharing();
      });

    }

    function stopSharing() {
      // Stop screen sharing
      if (localStream) {
        localStream.getTracks().forEach(track => track.stop());
        localStream = null;
      }

      // Close the call if it exists
      if (currentCall) {
        currentCall.close();
        currentCall = null;
      }

      // Reset video elements
      document.getElementById('my-video').srcObject = null;

      // Update UI
      document.getElementById('sharing-status').textContent = 'Not sharing';
      document.getElementById('sharing-status').style.color = 'initial';
      document.getElementById('stop-sharing-btn').disabled = true;
    }

    function copyClientId() {
      const clientId = document.getElementById('my-id').textContent;
      navigator.clipboard.writeText(clientId)
        .then(() => {
          alert('Client ID copied to clipboard!');
        })
        .catch(err => {
          console.error('Failed to copy: ', err);
          // Fallback for browsers that don't support clipboard API
          const tempInput = document.createElement('input');
          tempInput.value = clientId;
          document.body.appendChild(tempInput);
          tempInput.select();
          document.execCommand('copy');
          document.body.removeChild(tempInput);
          alert('Client ID copied to clipboard!');
        });
    }

    async function initLocalStream() {
      try {
        console.log('Requesting local stream...');
        if (localStream === null) {
          localStream = await navigator.mediaDevices.getDisplayMedia({ video: true, audio: false })
          document.getElementById('my-video').srcObject = localStream;
        }
      }
      catch (err) {
        console.error('Error accessing media devices.', err);
        document.getElementById('connection-status').textContent = 'Error accessing media devices';
      }
    }
  </script>
</body>

</html>