decentralized-video-chat/public/js/chat.js

1030 lines
33 KiB
JavaScript

// Vars
var isMuted;
var videoIsPaused;
const browserName = getBrowserName();
const url = window.location.href;
const roomHash = url.substring(url.lastIndexOf("/") + 1).toLowerCase();
var mode = "camera";
// var isFullscreen = false;
var sendingCaptions = false;
var receivingCaptions = false;
const isWebRTCSupported =
navigator.getUserMedia ||
navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia ||
navigator.msGetUserMedia ||
window.RTCPeerConnection;
// Element vars
const chatInput = document.querySelector(".compose input");
const remoteVideoVanilla = document.getElementById("remote-video");
const remoteVideo = $("#remote-video");
const remoteVideosWrapper = $("#wrapper");
const captionText = $("#remote-video-text");
const localVideoText = $("#local-video-text");
const captionButtontext = $("#caption-button-text");
const entireChat = $("#entire-chat");
const chatZone = $("#chat-zone");
// Need a Map to keep track of dataChannel connecting with each peer
var dataChannel = new Map();
var VideoChat = {
videoEnabled: true,
audioEnabled: true,
borderColor: `hsl(${Math.floor(Math.random() * 360)}, 70%, 80%)`,
connected: new Map(),
localICECandidates: {},
socket: io(),
remoteVideoWrapper: document.getElementById("wrapper"),
localVideo: document.getElementById("local-video"),
peerConnections: new Map(),
recognition: undefined,
// 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) {
logIt("requestMediaStream");
rePositionLocalVideo();
navigator.mediaDevices
.getUserMedia({
video: true,
audio: true,
})
.then((stream) => {
VideoChat.onMediaStream(stream);
localVideoText.text("Drag Me");
setTimeout(() => localVideoText.fadeOut(), 5000);
})
.catch((error) => {
logIt(error);
logIt(
"Failed to get local webcam video, check webcam privacy settings"
);
// Keep trying to get user media
setTimeout(VideoChat.requestMediaStream, 1000);
});
},
// Called when a video stream is added to VideoChat
onMediaStream: function (stream) {
logIt("onMediaStream");
VideoChat.localStream = stream;
// Add the stream as video's srcObject.
// Now that we have webcam video sorted, prompt user to share URL
Snackbar.show({
text: "Here is the join link for your call: " + url,
actionText: "Copy Link",
width: "750px",
pos: "top-center",
actionTextColor: "#616161",
duration: 500000,
backgroundColor: "#16171a",
onActionClick: function (element) {
// Copy url to clipboard, this is achieved by creating a temporary element,
// adding the text we want to that element, selecting it, then deleting it
var copyContent = window.location.href;
$('<input id="some-element">')
.val(copyContent)
.appendTo("body")
.select();
document.execCommand("copy");
var toRemove = document.querySelector("#some-element");
toRemove.parentNode.removeChild(toRemove);
Snackbar.close();
},
});
VideoChat.localVideo.srcObject = stream;
VideoChat.localVideo.style.border = `3px solid ${VideoChat.borderColor}`;
// Now we're ready to join the chat room.
VideoChat.socket.emit("join", roomHash);
// Add listeners to the websocket
VideoChat.socket.on("full", chatRoomFull);
VideoChat.socket.on("offer", VideoChat.onOffer);
VideoChat.socket.on("willInitiateCall", VideoChat.call);
// Set up listeners on the socket
VideoChat.socket.on("candidate", VideoChat.onCandidate);
VideoChat.socket.on("answer", VideoChat.onAnswer);
VideoChat.socket.on("requestToggleCaptions", () => toggleSendCaptions());
VideoChat.socket.on("recieveCaptions", (captions) =>
recieveCaptions(captions)
);
},
call: function (uuid, room) {
logIt(`call >>> Initiating call with ${uuid}...`);
VideoChat.socket.on(
"token",
VideoChat.establishConnection(uuid, function (a) {
VideoChat.createOffer(a);
})
);
VideoChat.socket.emit("token", roomHash, uuid);
},
establishConnection: function (correctUuid, callback) {
return function (token, uuid) {
if (correctUuid != uuid) {
return;
}
logIt(`<<< Received token, connecting to ${uuid}`);
// Initialise localICEcandidates for peer uuid to empty array
VideoChat.localICECandidates[uuid] = [];
// Initialise connection status with peer uuid to false
VideoChat.connected.set(uuid, false);
// Set up a new RTCPeerConnection using the token's iceServers.
VideoChat.peerConnections.set(
uuid,
new RTCPeerConnection({
iceServers: token.iceServers,
})
);
// Add the local video stream to the peerConnection.
VideoChat.localStream.getTracks().forEach(function (track) {
VideoChat.peerConnections
.get(uuid)
.addTrack(track, VideoChat.localStream);
});
// Add general purpose data channel to peer connection,
// used for text chats, captions, and toggling sending captions
dataChannel.set(
uuid,
VideoChat.peerConnections.get(uuid).createDataChannel("chat", {
negotiated: true,
// both peers must have same id
id: 0,
})
);
// Handle different dataChannel types
dataChannel.get(uuid).onmessage = function (event) {
const receivedData = event.data;
// First 4 chars represent data type
const dataType = receivedData.substring(0, 4);
const cleanedMessage = receivedData.slice(4);
if (dataType === "mes:") {
handleRecieveMessage(cleanedMessage);
} else if (dataType === "cap:") {
recieveCaptions(cleanedMessage);
} else if (dataType === "tog:") {
toggleSendCaptions();
} else if (dataType === "clr:") {
setStreamColor(uuid, cleanedMessage);
}
};
// Called when dataChannel is successfully opened
dataChannel.get(uuid).onopen = function (event) {
logIt("dataChannel opened");
// Sending our identifier color to the other peers
dataChannel.get(uuid).send("clr:" + VideoChat.borderColor);
};
// Set up callbacks for the connection generating iceCandidates or
// receiving the remote media stream. Wrapping callback functions
// to pass in the peer uuids.
VideoChat.peerConnections.get(uuid).onicecandidate = function (event) {
VideoChat.onIceCandidate(event, uuid);
};
VideoChat.peerConnections.get(uuid).onaddstream = function (event) {
VideoChat.onAddStream(event, uuid);
};
// Called when there is a change in connection state
VideoChat.peerConnections.get(
uuid
).oniceconnectionstatechange = function (event) {
switch (VideoChat.peerConnections.get(uuid).iceConnectionState) {
case "connected":
logIt("connected");
break;
case "disconnected":
logIt("disconnected - UUID " + uuid);
VideoChat.remoteVideoWrapper.removeChild(document.querySelectorAll(`[uuid="${uuid}"]`)[0]);
VideoChat.connected.delete(uuid);
VideoChat.peerConnections.delete(uuid);
dataChannel.delete(uuid);
if (VideoChat.peerConnections.size === 0) {
displayWaitingCaption();
}
break;
case "failed":
logIt("failed");
// VideoChat.socket.connect
// VideoChat.createOffer();
// Refresh page if connection has failed
location.reload();
break;
case "closed":
logIt("closed");
break;
}
};
callback(uuid);
};
},
// When the peerConnection generates an ice candidate, send it over the socket to the peer.
onIceCandidate: function (event, uuid) {
logIt("onIceCandidate");
if (event.candidate) {
logIt(
`<<< Received local ICE candidate from STUN/TURN server (${event.candidate.address}) for connection with ${uuid}`
);
if (VideoChat.connected.get(uuid)) {
logIt(`>>> Sending local ICE candidate (${event.candidate.address})`);
VideoChat.socket.emit(
"candidate",
JSON.stringify(event.candidate),
roomHash,
uuid
);
} 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[uuid].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, uuid) {
// Update caption text
captionText.text("Found other user... connecting");
rtcCandidate = new RTCIceCandidate(JSON.parse(candidate));
logIt(
`onCandidate <<< Received remote ICE candidate (${rtcCandidate.address} - ${rtcCandidate.relatedAddress})`
);
VideoChat.peerConnections.get(uuid).addIceCandidate(rtcCandidate);
},
// Create an offer that contains the media capabilities of the browser.
createOffer: function (uuid) {
logIt(`createOffer to ${uuid} >>> Creating offer...`);
VideoChat.peerConnections.get(uuid).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.peerConnections.get(uuid).setLocalDescription(offer);
VideoChat.socket.emit("offer", JSON.stringify(offer), roomHash, uuid);
},
function (err) {
logIt("failed offer creation");
logIt(err, true);
}
);
},
// Create an answer with the media capabilities that the client and peer 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, uuid) {
logIt("createAnswer");
rtcOffer = new RTCSessionDescription(JSON.parse(offer));
logIt(`>>> Creating answer to ${uuid}`);
VideoChat.peerConnections.get(uuid).setRemoteDescription(rtcOffer);
VideoChat.peerConnections.get(uuid).createAnswer(
function (answer) {
VideoChat.peerConnections.get(uuid).setLocalDescription(answer);
VideoChat.socket.emit("answer", JSON.stringify(answer), roomHash, uuid);
},
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, uuid) {
logIt("onOffer <<< Received offer");
VideoChat.socket.on(
"token",
VideoChat.establishConnection(uuid, function (a) {
VideoChat.createAnswer(offer, a);
})
);
VideoChat.socket.emit("token", roomHash, uuid);
},
// When an answer is received, add it to the peerConnection as the remote description.
onAnswer: function (answer, uuid) {
logIt(`onAnswer <<< Received answer from ${uuid}`);
var rtcAnswer = new RTCSessionDescription(JSON.parse(answer));
// Set remote description of RTCSession
VideoChat.peerConnections.get(uuid).setRemoteDescription(rtcAnswer);
// The caller now knows that the callee is ready to accept new ICE candidates, so sending the buffer over
VideoChat.localICECandidates[uuid].forEach((candidate) => {
logIt(`>>> Sending local ICE candidate (${candidate.address})`);
// Send ice candidate over websocket
VideoChat.socket.emit(
"candidate",
JSON.stringify(candidate),
roomHash,
uuid
);
});
// Reset the buffer of local ICE candidates. This is not really needed, but it's good practice
// VideoChat.localICECandidates[uuid] = []; // TESTING
},
// Called when a stream is added to the peer connection
onAddStream: function (event, uuid) {
logIt("onAddStream <<< Received new stream from remote. Adding it...");
// Create new remote video source in wrapper
// Create a <video> node
var node = document.createElement("video");
node.setAttribute("autoplay", "");
node.setAttribute("playsinline", "");
node.setAttribute("id", "remote-video");
node.setAttribute("uuid", uuid);
VideoChat.remoteVideoWrapper.appendChild(node);
// Update remote video source
VideoChat.remoteVideoWrapper.lastChild.srcObject = event.stream;
// Close the initial share url snackbar
Snackbar.close();
// Remove the loading gif from video
VideoChat.remoteVideoWrapper.lastChild.style.background = "none";
// Update connection status
VideoChat.connected.set(uuid, true);
// Hide caption status text
captionText.fadeOut();
// Reposition local video after a second, as there is often a delay
// between adding a stream and the height of the video div changing
setTimeout(() => rePositionLocalVideo(), 500);
},
};
// Get name of browser session using user agent
function getBrowserName() {
var name = "Unknown";
if (window.navigator.userAgent.indexOf("MSIE") !== -1) {
} else if (window.navigator.userAgent.indexOf("Firefox") !== -1) {
name = "Firefox";
} else if (window.navigator.userAgent.indexOf("Opera") !== -1) {
name = "Opera";
} else if (window.navigator.userAgent.indexOf("Chrome") !== -1) {
name = "Chrome";
} else if (window.navigator.userAgent.indexOf("Safari") !== -1) {
name = "Safari";
}
return name;
}
// Basic logging class wrapper
function logIt(message, error) {
console.log(message);
}
// Called when socket receives message that room is full
function chatRoomFull() {
alert(
"Chat room is full. Check to make sure you don't have multiple open tabs, or try with a new room link"
);
// Exit room and redirect
window.location.href = "/newcall";
}
// Reposition local video to top left of remote video
function rePositionLocalVideo() {
// Get position of remote video
var bounds = remoteVideosWrapper.position();
let localVideo = $("#local-video");
if (
/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
navigator.userAgent
)
) {
bounds.top = $(window).height() * 0.7;
bounds.left += 10;
} else {
bounds.top += 10;
bounds.left += 10;
}
// Set position of local video
$("#moveable").css(bounds);
}
// Reposition captions to bottom of video
function rePositionCaptions() {
// Get remote video position
var bounds = remoteVideosWrapper.position();
bounds.top -= 10;
bounds.top += remoteVideosWrapper.height() - 1 * captionText.height();
// Reposition captions
captionText.css(bounds);
}
// Called when window is resized
function windowResized() {
rePositionLocalVideo();
rePositionCaptions();
}
// Checks if connected to at least one peer
function isConnected() {
var connected = false;
// No way to 'break' forEach -> we go through all anyway
VideoChat.connected.forEach(function (value, key, map) {
if (value) {
connected = true;
}
});
return connected;
}
function sendToAllDataChannels(message) {
// key is UUID, value is dataChannel object
dataChannel.forEach(function (value, key, map) {
value.send(message);
});
}
// Fullscreen
// function openFullscreen() {
// try {
// // var elem = document.getElementById("remote-video");
// var elem = document.getElementById("body");
// if (!isFullscreen) {
// VideoChat.remoteVideo.classList.add("fullscreen");
// isFullscreen = true;
// if (elem.requestFullscreen) {
// elem.requestFullscreen();
// } else if (elem.mozRequestFullScreen) {
// /* Firefox */
// elem.mozRequestFullScreen();
// } else if (elem.webkitRequestFullscreen) {
// /* Chrome, Safari and Opera */
//
// elem.webkitRequestFullscreen();
// setTimeout(windowResized, 1000);
// } else if (elem.msRequestFullscreen) {
// /* IE/Edge */
// elem.msRequestFullscreen();
// }
// } else {
// isFullscreen = false;
// VideoChat.remoteVideo.classList.remove("fullscreen");
// if (document.exitFullscreen) {
// document.exitFullscreen();
// } else if (document.mozCancelFullScreen) {
// /* Firefox */
// document.mozCancelFullScreen();
// } else if (document.webkitExitFullscreen) {
// /* Chrome, Safari and Opera */
// document.webkitExitFullscreen();
// } else if (document.msExitFullscreen) {
// /* IE/Edge */
// document.msExitFullscreen();
// }
// }
// } catch (e) {
// logIt(e);
// }
// setTimeout(windowResized, 1000);
// }
// End Fullscreen
// Mute microphone
function muteMicrophone() {
var audioTrack = null;
VideoChat.audioEnabled = !VideoChat.audioEnabled;
VideoChat.peerConnections.forEach(function (value, key, map) {
value.getSenders().find(function (s) {
if (s.track.kind === "audio") {
audioTrack = s.track;
}
});
audioTrack.enabled = VideoChat.audioEnabled;
});
// select mic button and mic button text
const micButtonIcon = document.getElementById("mic-icon");
const micButtonText = document.getElementById("mic-text");
// Update mute button text and icon
if (!VideoChat.audioEnabled) {
micButtonIcon.classList.remove("fa-microphone");
micButtonIcon.classList.add("fa-microphone-slash");
micButtonText.innerText = "Unmute";
} else {
micButtonIcon.classList.add("fa-microphone");
micButtonIcon.classList.remove("fa-microphone-slash");
micButtonText.innerText = "Mute";
}
}
// End Mute microphone
// Pause Video
function pauseVideo() {
VideoChat.videoEnabled = !VideoChat.videoEnabled;
// Communicate pause to all the peers' video tracks
VideoChat.peerConnections.forEach(function (value, key, map) {
console.log("pausing video for ", key);
value.getSenders().find(function (s) {
if (s.track.kind === "video") {
console.log("found video track");
videoTrack = s.track;
}
});
videoTrack.enabled = VideoChat.videoEnabled;
});
// select video button and video button text
const videoButtonIcon = document.getElementById("video-icon");
const videoButtonText = document.getElementById("video-text");
// update pause button icon and text
if (!VideoChat.videoEnabled) {
localVideoText.text("Video is paused");
localVideoText.show();
videoButtonIcon.classList.remove("fa-video");
videoButtonIcon.classList.add("fa-video-slash");
videoButtonText.innerText = "Unpause Video";
} else {
localVideoText.text("Video unpaused");
setTimeout(() => localVideoText.fadeOut(), 2000);
videoButtonIcon.classList.add("fa-video");
videoButtonIcon.classList.remove("fa-video-slash");
videoButtonText.innerText = "Pause Video";
}
}
// End pause Video
// Swap camera / screen share
function swap() {
// Handle swap video before video call is connected by checking that there's at least one peer connected
if (!isConnected()) {
alert("You must join a call before you can share your screen.");
return;
}
// Store swap button icon and text
const swapIcon = document.getElementById("swap-icon");
const swapText = document.getElementById("swap-text");
// If mode is camera then switch to screen share
if (mode === "camera") {
// Show accept screenshare snackbar
Snackbar.show({
text:
"Please allow screen share. Click the middle of the picture above and then press share.",
width: "400px",
pos: "bottom-center",
actionTextColor: "#616161",
duration: 50000,
});
// Request screen share, note we dont want to capture audio
// as we already have the stream from the Webcam
navigator.mediaDevices
.getDisplayMedia({
video: true,
audio: false,
})
.then(function (stream) {
// Close allow screenshare snackbar
Snackbar.close();
// Change display mode
mode = "screen";
// Update swap button icon and text
swapIcon.classList.remove("fa-desktop");
swapIcon.classList.add("fa-camera");
swapText.innerText = "Share Webcam";
switchStreamHelper(stream);
})
.catch(function (err) {
logIt(err);
logIt("Error sharing screen");
Snackbar.close();
});
// If mode is screenshare then switch to webcam
} else {
// Stop the screen share track
VideoChat.localVideo.srcObject.getTracks().forEach((track) => track.stop());
// Get webcam input
navigator.mediaDevices
.getUserMedia({
video: true,
audio: true,
})
.then(function (stream) {
// Change display mode
mode = "camera";
// Update swap button icon and text
swapIcon.classList.remove("fa-camera");
swapIcon.classList.add("fa-desktop");
swapText.innerText = "Share Screen";
switchStreamHelper(stream);
});
}
}
// Swap current video track with passed in stream
function switchStreamHelper(stream) {
// Get current video track
let videoTrack = stream.getVideoTracks()[0];
// Add listen for if the current track swaps, swap back
videoTrack.onended = function () {
swap();
};
// Swap video for every peer connection
VideoChat.connected.forEach(function (value, key, map) {
// Just to be safe, check if connected before swapping video channel
if (VideoChat.connected.get(key)) {
const sender = VideoChat.peerConnections
.get(key)
.getSenders()
.find(function (s) {
return s.track.kind === videoTrack.kind;
});
sender.replaceTrack(videoTrack);
}
});
// Update local video stream
VideoChat.localStream = videoTrack;
// Update local video object
VideoChat.localVideo.srcObject = stream;
// Unpause video on swap
if (!VideoChat.videoEnabled) {
pauseVideo();
}
}
// End swap camera / screen share
// Live caption
// Request captions from other user, toggles state
function requestToggleCaptions() {
// Handle requesting captions before connected
if (!isConnected()) {
alert("You must be connected to a peer to use Live Caption");
return;
}
if (receivingCaptions) {
captionText.text("").fadeOut();
captionButtontext.text("Start Live Caption");
receivingCaptions = false;
} else {
Snackbar.show({
text:
"This is an experimental feature. Live caption requires the other user to be using Chrome",
width: "400px",
pos: "bottom-center",
actionTextColor: "#616161",
duration: 10000,
});
captionButtontext.text("End Live Caption");
receivingCaptions = true;
}
// Send request to get captions over data channel
sendToAllDataChannels("tog:");
}
// Start/stop sending captions to other user
function toggleSendCaptions() {
if (sendingCaptions) {
sendingCaptions = false;
VideoChat.recognition.stop();
} else {
startSpeech();
sendingCaptions = true;
}
}
// Start speech recognition
function startSpeech() {
try {
var SpeechRecognition =
window.SpeechRecognition || window.webkitSpeechRecognition;
VideoChat.recognition = new SpeechRecognition();
// VideoChat.recognition.lang = "en";
} catch (e) {
sendingCaptions = false;
logIt(e);
logIt("error importing speech library");
// Alert other user that they cannon use live caption
sendToAllDataChannels("cap:notusingchrome");
return;
}
// recognition.maxAlternatives = 3;
VideoChat.recognition.continuous = true;
// Show results that aren't final
VideoChat.recognition.interimResults = true;
var finalTranscript;
VideoChat.recognition.onresult = (event) => {
let interimTranscript = "";
for (let i = event.resultIndex, len = event.results.length; i < len; i++) {
var transcript = event.results[i][0].transcript;
console.log(transcript);
if (event.results[i].isFinal) {
finalTranscript += transcript;
} else {
interimTranscript += transcript;
var charsToKeep = interimTranscript.length % 100;
// Send captions over data chanel,
// subtracting as many complete 100 char slices from start
sendToAllDataChannels(
"cap:" +
interimTranscript.substring(interimTranscript.length - charsToKeep)
);
}
}
};
VideoChat.recognition.onend = function () {
logIt("on speech recording end");
// Restart speech recognition if user has not stopped it
if (sendingCaptions) {
startSpeech();
} else {
VideoChat.recognition.stop();
}
};
VideoChat.recognition.start();
}
// Recieve captions over datachannel
function recieveCaptions(captions) {
if (receivingCaptions) {
captionText.text("").fadeIn();
} else {
captionText.text("").fadeOut();
}
// Other user is not using chrome
if (captions === "notusingchrome") {
alert(
"Other caller must be using chrome for this feature to work. Live Caption turned off."
);
receivingCaptions = false;
captionText.text("").fadeOut();
captionButtontext.text("Start Live Caption");
return;
}
captionText.text(captions);
rePositionCaptions();
}
// End Live caption
// Translation
// function translate(text) {
// let fromLang = "en";
// let toLang = "zh";
// // let text = "hello how are you?";
// const API_KEY = "APIKEYHERE";
// let gurl = `https://translation.googleapis.com/language/translate/v2?key=${API_KEY}`;
// gurl += "&q=" + encodeURI(text);
// gurl += `&source=${fromLang}`;
// gurl += `&target=${toLang}`;
// fetch(gurl, {
// method: "GET",
// headers: {
// "Content-Type": "application/json",
// Accept: "application/json",
// },
// })
// .then((res) => res.json())
// .then((response) => {
// // console.log("response from google: ", response);
// // return response["data"]["translations"][0]["translatedText"];
// logIt(response);
// var translatedText =
// response["data"]["translations"][0]["translatedText"];
// console.log(translatedText);
// dataChanel.send("cap:" + translatedText);
// })
// .catch((error) => {
// console.log("There was an error with the translation request: ", error);
// });
// }
// End Translation
// Text Chat
// Add text message to chat screen on page
function addMessageToScreen(msg, border, isOwnMessage) {
if (isOwnMessage) {
$(".chat-messages").append(
`<div class="message-item customer cssanimation fadeInBottom"><div class="message-bloc" style="--bloc-color: ${border}"><div class="message">` +
msg +
"</div></div></div>"
);
} else {
$(".chat-messages").append(
`<div class="message-item moderator cssanimation fadeInBottom"><div class="message-bloc" style="--bloc-color: ${border}"><div class="message">` +
msg +
"</div></div></div>"
);
}
}
// Listen for enter press on chat input
chatInput.addEventListener("keypress", function (event) {
if (event.keyCode === 13) {
// Prevent page refresh on enter
event.preventDefault();
var msg = chatInput.value;
// Prevent cross site scripting
msg = msg.replace(/</g, "&lt;").replace(/>/g, "&gt;");
// Make links clickable
msg = msg.autoLink();
// Send message over data channel
sendToAllDataChannels("mes:" + VideoChat.borderColor + msg);
// Add message to screen
addMessageToScreen(msg, VideoChat.borderColor, true);
// Auto scroll chat down
chatZone.scrollTop(chatZone[0].scrollHeight);
// Clear chat input
chatInput.value = "";
}
});
// Called when a message is recieved over the dataChannel
function handleRecieveMessage(msg) {
// Slice border color for message
const endIndex = msg.indexOf(')');
const color = msg.slice(0, endIndex);
msg = msg.slice(endIndex+1, msg.length);
// Add message to screen
addMessageToScreen(msg, color, false);
// Auto scroll chat down
chatZone.scrollTop(chatZone[0].scrollHeight);
// Show chat if hidden
if (entireChat.is(":hidden")) {
toggleChat();
}
}
// Sets the border color of uuid's stream upon receiving color
function setStreamColor(uuid, color) {
document.querySelectorAll(`[uuid="${uuid}"]`)[0].style.border = `3px solid ${color}`;
}
// Show and hide chat
function toggleChat() {
var chatIcon = document.getElementById("chat-icon");
var chatText = $("#chat-text");
if (entireChat.is(":visible")) {
entireChat.fadeOut();
// Update show chat buttton
chatText.text("Show Chat");
chatIcon.classList.remove("fa-comment-slash");
chatIcon.classList.add("fa-comment");
} else {
entireChat.fadeIn();
// Update show chat buttton
chatText.text("Hide Chat");
chatIcon.classList.remove("fa-comment");
chatIcon.classList.add("fa-comment-slash");
}
}
// End Text chat
// Picture in picture
function togglePictureInPicture() {
if (
"pictureInPictureEnabled" in document ||
remoteVideoVanilla.webkitSetPresentationMode
) {
if (document.pictureInPictureElement) {
document.exitPictureInPicture().catch((error) => {
logIt("Error exiting pip.");
logIt(error);
});
} else if (remoteVideoVanilla.webkitPresentationMode === "inline") {
remoteVideoVanilla.webkitSetPresentationMode("picture-in-picture");
} else if (
remoteVideoVanilla.webkitPresentationMode === "picture-in-picture"
) {
remoteVideoVanilla.webkitSetPresentationMode("inline");
} else {
remoteVideoVanilla.requestPictureInPicture().catch((error) => {
alert(
"You must be connected to another person to enter picture in picture."
);
});
}
} else {
alert(
"Picture in picture is not supported in your browser. Consider using Chrome or Safari."
);
}
}
// Helper function for displaying waiting caption
function displayWaitingCaption() {
// Set caption text on start
captionText.text("Waiting for other user to join...").fadeIn();
// Reposition captions on start
rePositionCaptions();
}
function startUp() {
// Try and detect in-app browsers and redirect
var ua = navigator.userAgent || navigator.vendor || window.opera;
if (
DetectRTC.isMobileDevice &&
(ua.indexOf("FBAN") > -1 ||
ua.indexOf("FBAV") > -1 ||
ua.indexOf("Instagram") > -1)
) {
if (DetectRTC.osName === "iOS") {
window.location.href = "/notsupportedios";
} else {
window.location.href = "/notsupported";
}
}
// Redirect all iOS browsers that are not Safari
if (DetectRTC.isMobileDevice) {
if (DetectRTC.osName === "iOS" && !DetectRTC.browser.isSafari) {
window.location.href = "/notsupportedios";
}
}
if (!isWebRTCSupported || browserName === "MSIE") {
window.location.href = "/notsupported";
}
// Set tab title
document.title = "Zipcall - " + url.substring(url.lastIndexOf("/") + 1);
// get webcam on load
VideoChat.requestMediaStream();
// Captions hidden by default
captionText.text("").fadeOut();
// Make local video draggable
$("#moveable").draggable({ containment: "window" });
// Hide button labels on load
$(".HoverState").hide();
// Text chat hidden by default
entireChat.hide();
// Show hide button labels on hover
$(document).ready(function () {
$(".hoverButton").mouseover(function () {
$(".HoverState").hide();
$(this).next().show();
});
$(".hoverButton").mouseout(function () {
$(".HoverState").hide();
});
});
// Fade out / show UI on mouse move
var timedelay = 1;
function delayCheck() {
if (timedelay === 5) {
// $(".multi-button").fadeOut();
$("#header").fadeOut();
timedelay = 1;
}
timedelay = timedelay + 1;
}
$(document).mousemove(function () {
$(".multi-button").fadeIn();
$("#header").fadeIn();
$(".multi-button").style = "";
timedelay = 1;
clearInterval(_delay);
_delay = setInterval(delayCheck, 500);
});
_delay = setInterval(delayCheck, 500);
// Show accept webcam snackbar
Snackbar.show({
text: "Please allow microphone and webcam access",
actionText: "Show Me How",
width: "455px",
pos: "top-right",
actionTextColor: "#616161",
duration: 50000,
onActionClick: function (element) {
window.open(
"https://getacclaim.zendesk.com/hc/en-us/articles/360001547832-Setting-the-default-camera-on-your-browser",
"_blank"
);
},
});
displayWaitingCaption();
// On change media devices refresh page and switch to system default
navigator.mediaDevices.ondevicechange = () => window.location.reload();
}
startUp();