DataChannel.js » A WebRTC Library for Data Sharing

Copyright © 2013 Muaz Khan<@muazkh> » @WebRTC Experiments » Google+ » What's New?

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Text Chat

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DataChannel.js Features:

  1. Direct messages — to any user using his `user-id`
  2. Eject/Reject any user — using his `user-id`
  3. Leave any room (i.e. data session) or close entire session using `leave` method
  4. File size is limitless!
  5. Text message length is limitless!
  6. Size of data is also limitless!
  7. Fallback to firebase/socket.io/websockets/etc.
  8. Users' presence detection using `onleave`
  9. Latency detection
  10. Multi-longest strings/files concurrent transmission

How to use DataChannel.js?

<script src="https://www.webrtc-experiment.com/DataChannel.js"> </script>

<input type="text" id="chat-input" disabled 
       style="font-size: 2em; width: 98%;"><br />
<div id="chat-output"></div>

<script>
    var chatOutput = document.getElementById('chat-output');
    var chatInput = document.getElementById('chat-input');
    chatInput.onkeypress = function(e) {
        if (e.keyCode != 13) return;
        channel.send(this.value);
        chatOutput.innerHTML = 'Me: ' + this.value + '<hr />' 
                             + chatOutput.innerHTML;
        this.value = '';
    };
</script>

<script>
    var channel = new DataChannel('Session Unique Identifier');

    channel.onopen = function(userid) {
        chatInput.disabled = false;
        chatInput.value = 'Hi, ' + userid;
        chatInput.focus();
    };

    channel.onmessage = function(message, userid) {
        chatOutput.innerHTML = userid + ': ' + message + '<hr />' 
                             + chatOutput.innerHTML;
    };

    channel.onleave = function(userid) {
        chatOutput.innerHTML = userid + ' Left.<hr />' 
                             + chatOutput.innerHTML;
    };
</script>