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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 connections = {};
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(c.peer);
    var messages = $('<div></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) {
      //chatbox.addClass('active');
      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) {
      $('#' + c.peer).find('.messages').append('<div><span class="file">' +
          c.peer + ' has sent you a file.</span></div>');
    });
  }

  // Save connection object appropriately.
  if (!connections[c.peer]) {
    connections[c.peer] = {};
  }
  connections[c.peer][c.label] = c;
}

$(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 = 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);
});

</script>
</head> 
 
<body> 

  <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 (Dev
  or Canary channels)</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>