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peerjs


			
				
					
						
						
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							<!DOCTYPE HTML> 
<html lang="en"> 
<head>
<title>PeerJS chat demo</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
<meta http-equiv="Content-Language" content="en-us"> 

<link href="fancy.css" rel="stylesheet" type="text/css">

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script> 
<script type="text/javascript" src="http://cdn.peerjs.com/0/peer.js"></script>
<script>
// Connect to PeerJS, have server assign an ID instead of providing one
var peer = new Peer({key: 'lwjd5qra8257b9', debug: true});

// Show this peer's ID.
peer.on('open', function(id){
  $('#pid').text(id);
});

// Await connections from others
peer.on('connection', connect);

// Handle a connection object.
function connect(c) {
  // Handle a chat connection.
  if (c.label === 'chat') {
    var chatbox = $('<div></div>').addClass('connection').addClass('active').attr('id', c.peer);
    var header = $('<h1></h1>').html('Chat with <strong>' + c.peer + '</strong>');
    var messages = $('<div><em>Peer connected.</em></div>').addClass('messages');
    chatbox.append(header);
    chatbox.append(messages);
 
    // Select connection handler.
    chatbox.on('click', function() {
      if ($(this).attr('class').indexOf('active') === -1) {
        $(this).addClass('active');
      } else {
        $(this).removeClass('active');
      }
    });
    $('.filler').hide();
    $('#connections').append(chatbox);

    c.on('data', function(data) {
      messages.append('<div><span class="peer">' + c.peer + '</span>: ' + data +
        '</div>');
        });
        c.on('close', function() {
          alert(c.peer + ' has left the chat.');
          chatbox.remove();
          if ($('.connection').length === 0) {
            $('.filler').show();
          }
        });
  } else if (c.label === 'file') {
    c.on('data', function(data) {
      // If we're getting a file, create a URL for it.
      if (data.constructor === ArrayBuffer) {
        var dataView = new Uint8Array(data);
        var dataBlob = new Blob([dataView]);
        var url = window.URL.createObjectURL(dataBlob);
        $('#' + c.peer).find('.messages').append('<div><span class="file">' +
            c.peer + ' has sent you a <a target="_blank" href="' + url + '">file</a>.</span></div>');
      }
    });
  }
}

$(document).ready(function() {
  // Prepare file drop box.
  var box = $('#box');
  box.on('dragenter', doNothing);
  box.on('dragover', doNothing);
  box.on('drop', function(e){
    e.originalEvent.preventDefault();
    var file = e.originalEvent.dataTransfer.files[0];
    eachActiveConnection(function(c, $c) {
      if (c.label === 'file') {
        c.send(file);
        $c.find('.messages').append('<div><span class="file">You sent a file.</span></div>');
      }
    });
  });
  function doNothing(e){
    e.preventDefault();
    e.stopPropagation();
  }

  // Connect to a peer
  $('#connect').click(function() {
    // Create 2 connections, one labelled chat and another labelled file.
    var c = peer.connect($('#rid').val(), { label: 'chat' });
    c.on('open', function() {
      connect(c);
    });
    c.on('error', function(err) { alert(err); });
    var f = peer.connect($('#rid').val(), { reliable: true, label: 'file' });
    f.on('open', function() {
      connect(f);
    });
    f.on('error', function(err) { alert(err); });
  });

  // Close a connection.
  $('#close').click(function() {
    eachActiveConnection(function(c) {
      c.close();
    });
  });

  // Send a chat message to all active connections.
  $('#send').submit(function(e) {
    e.preventDefault();
    // For each active connection, send the message.
    var msg = $('#text').val();
    eachActiveConnection(function(c, $c) {
      if (c.label === 'chat') {
        c.send(msg);
        $c.find('.messages').append('<div><span class="you">You: </span>' + msg
          + '</div>');
      }
    });
    $('#text').val('');
    $('#text').focus();
  });

  // Goes through each active peer and calls FN on its connections.
  function eachActiveConnection(fn) {
    var actives = $('.active');
    actives.each(function() {
      var peerId = $(this).attr('id');
      var conns = peer.connections[peerId];
      var labels = Object.keys(conns);
      for (var i = 0, ii = labels.length; i < ii; i += 1) {
        var conn = conns[labels[i]];
        fn(conn, $(this));
      }
    });
  }

  // Show browser version
  $('#browsers').text(navigator.userAgent);
});

// Make sure things clean up properly.

window.onunload = window.onbeforeunload = function(e) {
  if (!!peer && !peer.destroyed) {
    peer.destroy();
  }
};

</script>
</head> 
 
<body> 
  <a href="https://github.com/peers/peerjs"><img style="position: absolute; top: 0; right: 0; border: 0;"
    src="https://s3.amazonaws.com/github/ribbons/forkme_right_orange_ff7600.png"
    alt="Fork me on GitHub"></a>

  <div id="actions">
    Your PeerJS ID is <span id="pid"></span><br>
    Connect to a peer: <input type="text" id="rid" placeholder="Someone else's id"><input class="button" type="button" value="Connect" id="connect"><br><br>

    <form id="send">
      <input type="text" id="text" placeholder="Enter message"><input class="button" type="submit" value="Send to selected peers">
    </form>
    <button id="close">Close selected connections</button>
  </div>

  <div id="wrap"><div id="connections"><span class="filler">You have not yet
        made any connections.</span></div>
    <div class="clear"></div></div>

  <div id="box" style="background: #fff; font-size: 18px;padding:40px 30px; text-align: center;">
    Drag file here to send to active connections.
  </div>
  
  
  <div class="warning browser"><div class="important">Your browser version: <span id="browsers"></span><br>
  Currently <strong>Google Chrome 26.0.1403.0 or above</strong> is required.</strong></div>For more up to date compatibility
information see <a href="http://peerjs.com/status">PeerJS WebRTC
  Status</a><br>Note that this demo may also fail if you are behind
stringent firewalls or both you and the remote peer and behind symmetric
NATs.</div>
</body> 
</html>