symple-webrtc-video-chat-demo/assets/helpers.js

The Symple video chat demo is an example of how to use Symple to build an instant messaging and WebRTC video chat application in about 100 lines of JavaScript. External projects used are AngularJS, Bootstrap, Node.js and Express.

function createPlayer($scope, origin, selector) {
    var player = new Symple.Player({
        element: selector,
        engine: 'WebRTC', 
        rtcConfig: WEBRTC_CONFIG,
        mediaConstraints: {
          'mandatory': {
            'OfferToReceiveAudio':true, 
            'OfferToReceiveVideo':true
          }
        },
        onStateChange:  function(player, state) {
            player.displayStatus(state);
        }
    });
    player.setup();        
    player.engine.sendLocalSDP = function(desc) { 
        $scope.client.send({
            name: 'call:ice:sdp',
            to: $scope.remoteVideoPeer,
            origin: origin,
            type: 'event',
            sdp: desc
        })
    }
    player.engine.sendLocalCandidate = function(cand) { 
        $scope.client.send({
            name: 'call:ice:candidate',
            to: $scope.remoteVideoPeer,
            origin: origin,
            type: 'event',
            candidate: cand
        })
    }    
    return player;
}

function getHandleFromURL() {
    return location.search.split('handle=')[1] ? location.search.split('handle=')[1] : '';
}

function assertGetUserMedia() {
    if (navigator.getUserMedia || navigator.webkitGetUserMedia ||
        navigator.mozGetUserMedia || navigator.msGetUserMedia) {
        return true;
    }
    else {
        alert('getUserMedia() is not supported in your browser. Please upgrade to the latest Chrome or Firefox.');
        return false;
    }
}