if (window.location.pathname === "/") { // Generate random room name if needed var adjectives = ["small", "big", "large", "smelly", "new", "happy", "shiny", "old", "clean", "nice", "bad", "cool", "hot", "cold", "warm", "hungry", "slow", "fast", "red", "white", "black", "blue", "green"]; var nouns = ["dog", "bat", "wrench", "apple", "pear", "ghost", "cat", "wolf", "squid", "goat", "snail", "hat", "sock", "plum", "bear", "snake", "turtle", "horse", "spoon", "fork", "spider", "tree", "chair", "table", "couch", "towel"]; var adjective = adjectives[Math.floor(Math.random() * adjectives.length)]; var noun = nouns[Math.floor(Math.random() * nouns.length)]; noun = noun.charAt(0).toUpperCase() + noun.substring(1); adjective = adjective.charAt(0).toUpperCase() + adjective.substring(1); window.location.href = window.location.href + adjective + noun; } const roomHash = window.location.pathname; function logIt(message, error) { // console.log(message); // Add to logs on page // let logs = document.getElementById('logs'); // let tmp = document.createElement('P'); // tmp.innerText = message; // if (error) { // tmp.classList.add('error'); // } // logs.appendChild(tmp); } // Create an object to save various objects to without polluting the global namespace. var VideoChat = { connected: false, willInitiateCall: false, localICECandidates: [], // Initialise our connection to the WebSocket. socket: io(), remoteVideo: document.getElementById('remote-video'), localVideo: document.getElementById('local-video'), // Call to getUserMedia (provided by adapter.js for cross browser compatibility) // asking for access to both the video and audio streams. If the request is // accepted callback to the onMediaStream function, otherwise callback to the // noMediaStream function. requestMediaStream: function (event) { console.log("requestMediaStream"); navigator.mediaDevices .getUserMedia({video: true, audio: true}) .then(stream => { VideoChat.onMediaStream(stream); }) .catch(error => { VideoChat.noMediaStream(error); }); }, requestScreenStream: function (event) { navigator.mediaDevices .getDisplayMedia({video: true, audio: true}) .then(stream => { VideoChat.onMediaStream(stream); }) .catch(error => { VideoChat.noMediaStream(error); }); }, // The onMediaStream function receives the media stream as an argument. onMediaStream: function (stream) { console.log("onMediaStream"); VideoChat.localStream = stream; // Add the stream as video's srcObject. VideoChat.localVideo.srcObject = stream; // Now we're ready to join the chat room. VideoChat.socket.emit('join', roomHash); VideoChat.socket.on('temp', () => alert("temp called")); VideoChat.socket.on('full', VideoChat.chatRoomFull); VideoChat.socket.on('offer', VideoChat.onOffer); VideoChat.socket.on('ready', VideoChat.readyToCall); VideoChat.socket.on('willInitiateCall', () => VideoChat.willInitiateCall = true); }, // There's not much to do in this demo if there is no media stream. So let's just stop. noMediaStream: function () { logIt('No media stream for us.'); }, chatRoomFull: function () { alert("Chat room is full. Check to make sure you don't have multiple open tabs, or try with a new room link"); // VideoChat.socket.disconnect() // todo handle this better }, // When we are ready to call, enable the Call button. readyToCall: function (event) { console.log("readyToCall"); if (VideoChat.willInitiateCall) { VideoChat.startCall() } }, // Set up a callback to run when we have the ephemeral token to use Twilio's TURN server. startCall: function (event) { console.log("startCall"); logIt('>>> Sending token request...'); VideoChat.socket.on('token', VideoChat.onToken(VideoChat.createOffer)); VideoChat.socket.emit('token', roomHash); }, // When we receive the ephemeral token back from the server. onToken: function (callback) { console.log("onToken"); return function (token) { logIt('<<< Received token'); // Set up a new RTCPeerConnection using the token's iceServers. VideoChat.peerConnection = new RTCPeerConnection({iceServers: token.iceServers}); // Add the local video stream to the peerConnection. VideoChat.peerConnection.addStream(VideoChat.localStream); // Set up callbacks for the connection generating iceCandidates or // receiving the remote media stream. VideoChat.peerConnection.onicecandidate = VideoChat.onIceCandidate; VideoChat.peerConnection.onaddstream = VideoChat.onAddStream; // Set up listeners on the socket for candidates or answers being passed // over the socket connection. VideoChat.socket.on('candidate', VideoChat.onCandidate); VideoChat.socket.on('answer', VideoChat.onAnswer); callback(); }; }, // When the peerConnection generates an ice candidate, send it over the socket // to the peer. onIceCandidate: function (event) { console.log("onIceCandidate"); if (event.candidate) { logIt(`<<< Received local ICE candidate from STUN/TURN server (${event.candidate.address})`); if (VideoChat.connected) { logIt(`>>> Sending local ICE candidate (${event.candidate.address})`); VideoChat.socket.emit('candidate', JSON.stringify(event.candidate), roomHash); } else { // If we are not 'connected' to the other peer, we are buffering the local ICE candidates. // This most likely is happening on the "caller" side. // The peer may not have created the RTCPeerConnection yet, so we are waiting for the 'answer' // to arrive. This will signal that the peer is ready to receive signaling. VideoChat.localICECandidates.push(event.candidate); } } }, // When receiving a candidate over the socket, turn it back into a real // RTCIceCandidate and add it to the peerConnection. onCandidate: function (candidate) { console.log("onCandidate"); rtcCandidate = new RTCIceCandidate(JSON.parse(candidate)); logIt(`<<< Received remote ICE candidate (${rtcCandidate.address} - ${rtcCandidate.relatedAddress})`); VideoChat.peerConnection.addIceCandidate(rtcCandidate); }, // Create an offer that contains the media capabilities of the browser. createOffer: function () { console.log("createOffer"); logIt('>>> Creating offer...'); VideoChat.peerConnection.createOffer( function (offer) { // If the offer is created successfully, set it as the local description // and send it over the socket connection to initiate the peerConnection // on the other side. VideoChat.peerConnection.setLocalDescription(offer); VideoChat.socket.emit('offer', JSON.stringify(offer), roomHash); }, function (err) { logIt("failed offer creation"); logIt(err, true); } ); }, // Create an answer with the media capabilities that both browsers share. // This function is called with the offer from the originating browser, which // needs to be parsed into an RTCSessionDescription and added as the remote // description to the peerConnection object. Then the answer is created in the // same manner as the offer and sent over the socket. createAnswer: function (offer) { console.log("createAnswer"); return function () { logIt('>>> Creating answer...'); VideoChat.connected = true; rtcOffer = new RTCSessionDescription(JSON.parse(offer)); VideoChat.peerConnection.setRemoteDescription(rtcOffer); VideoChat.peerConnection.createAnswer( function (answer) { VideoChat.peerConnection.setLocalDescription(answer); VideoChat.socket.emit('answer', JSON.stringify(answer), roomHash); }, function (err) { logIt("Failed answer creation."); logIt(err, true); } ); }; }, // When a browser receives an offer, set up a callback to be run when the // ephemeral token is returned from Twilio. onOffer: function (offer) { console.log("onOffer"); logIt('<<< Received offer'); VideoChat.socket.on('token', VideoChat.onToken(VideoChat.createAnswer(offer))); VideoChat.socket.emit('token', roomHash); }, // When an answer is received, add it to the peerConnection as the remote // description. onAnswer: function (answer) { console.log("onAnswer"); logIt('<<< Received answer'); var rtcAnswer = new RTCSessionDescription(JSON.parse(answer)); VideoChat.peerConnection.setRemoteDescription(rtcAnswer); VideoChat.connected = true; VideoChat.localICECandidates.forEach(candidate => { // The caller now knows that the callee is ready to accept new ICE candidates, so sending the buffer over logIt(`>>> Sending local ICE candidate (${candidate.address})`); VideoChat.socket.emit('candidate', JSON.stringify(candidate), roomHash); }); // Reset the buffer of local ICE candidates. This is not really needed // in this specific client, but it's good practice VideoChat.localICECandidates = []; }, // When the peerConnection receives the actual media stream from the other // browser, add it to the other video element on the page. onAddStream: function (event) { console.log("onAddStream"); logIt('<<< Received new stream from remote. Adding it...'); VideoChat.remoteVideo.srcObject = event.stream; } }; // auto get media // VideoChat.requestScreenStream(); VideoChat.requestMediaStream(); function openFullscreen() { if (VideoChat.remoteVideo.requestFullscreen) { VideoChat.remoteVideo.requestFullscreen(); } else if (VideoChat.remoteVideo.mozRequestFullScreen) { /* Firefox */ VideoChat.remoteVideo.mozRequestFullScreen(); } else if (VideoChat.remoteVideo.webkitRequestFullscreen) { /* Chrome, Safari and Opera */ VideoChat.remoteVideo.webkitRequestFullscreen(); } else if (VideoChat.remoteVideo.msRequestFullscreen) { /* IE/Edge */ VideoChat.remoteVideo.msRequestFullscreen(); } } function muteMicrophone() { var muted = !VideoChat.localStream.getAudioTracks()[0].enabled; VideoChat.localStream.getAudioTracks()[0].enabled = muted; var mutedButton = document.getElementById("muteButton"); if (!muted) { mutedButton.innerText = "Unmute" } else { mutedButton.innerText = "Mute" } } var timedelay = 1; function delayCheck() { if (timedelay === 5) { $('#buttons').fadeOut(); timedelay = 1; } timedelay = timedelay + 1; } $(document).mousemove(function () { $('#buttons').fadeIn(); timedelay = 1; clearInterval(_delay); _delay = setInterval(delayCheck, 500); }); // page loads starts delay timer _delay = setInterval(delayCheck, 500);