1036 lines
33 KiB
JavaScript
1036 lines
33 KiB
JavaScript
// Vars
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var isMuted;
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var videoIsPaused;
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const browserName = getBrowserName();
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const url = window.location.href;
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const roomHash = url.substring(url.lastIndexOf("/") + 1).toLowerCase();
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var mode = "camera";
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// var isFullscreen = false;
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var sendingCaptions = false;
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var receivingCaptions = false;
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const isWebRTCSupported =
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navigator.getUserMedia ||
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navigator.webkitGetUserMedia ||
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navigator.mozGetUserMedia ||
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navigator.msGetUserMedia ||
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window.RTCPeerConnection;
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// Element vars
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const chatInput = document.querySelector(".compose input");
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const remoteVideoVanilla = document.getElementById("remote-video");
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const remoteVideo = $("#remote-video");
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const remoteVideosWrapper = $("#wrapper");
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const captionText = $("#remote-video-text");
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const localVideoText = $("#local-video-text");
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const captionButtontext = $("#caption-button-text");
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const entireChat = $("#entire-chat");
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const chatZone = $("#chat-zone");
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// Need a Map to keep track of dataChannel connecting with each peer
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var dataChannel = new Map();
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var VideoChat = {
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videoEnabled: true,
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audioEnabled: true,
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connected: new Map(),
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localICECandidates: {},
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socket: io(),
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remoteVideoWrapper: document.getElementById("wrapper"),
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localVideo: document.getElementById("local-video"),
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peerConnections: new Map(),
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recognition: undefined,
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borderColor: undefined,
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peerColors: new Map(),
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// Call to getUserMedia (provided by adapter.js for cross browser compatibility)
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// asking for access to both the video and audio streams. If the request is
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// accepted callback to the onMediaStream function, otherwise callback to the
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// noMediaStream function.
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requestMediaStream: function (event) {
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logIt("requestMediaStream");
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rePositionLocalVideo();
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navigator.mediaDevices
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.getUserMedia({
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video: true,
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audio: true,
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})
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.then((stream) => {
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VideoChat.onMediaStream(stream);
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localVideoText.text("Drag Me");
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setTimeout(() => localVideoText.fadeOut(), 5000);
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})
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.catch((error) => {
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logIt(error);
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logIt(
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"Failed to get local webcam video, check webcam privacy settings"
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);
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// Keep trying to get user media
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setTimeout(VideoChat.requestMediaStream, 1000);
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});
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},
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// Called when a video stream is added to VideoChat
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onMediaStream: function (stream) {
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logIt("onMediaStream");
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VideoChat.localStream = stream;
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// Add the stream as video's srcObject.
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// Now that we have webcam video sorted, prompt user to share URL
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Snackbar.show({
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text: "Here is the join link for your call: " + url,
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actionText: "Copy Link",
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width: "750px",
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pos: "top-center",
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actionTextColor: "#616161",
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duration: 500000,
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backgroundColor: "#16171a",
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onActionClick: function (element) {
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// Copy url to clipboard, this is achieved by creating a temporary element,
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// adding the text we want to that element, selecting it, then deleting it
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var copyContent = window.location.href;
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$('<input id="some-element">')
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.val(copyContent)
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.appendTo("body")
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.select();
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document.execCommand("copy");
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var toRemove = document.querySelector("#some-element");
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toRemove.parentNode.removeChild(toRemove);
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Snackbar.close();
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},
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});
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VideoChat.localVideo.srcObject = stream;
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// Now we're ready to join the chat room.
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VideoChat.socket.emit("join", roomHash, function() {
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VideoChat.borderColor = hueToColor(uuidToHue(VideoChat.socket.id));
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VideoChat.localVideo.style.border = `3px solid ${VideoChat.borderColor}`;
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});
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// Add listeners to the websocket
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VideoChat.socket.on("leave", VideoChat.onLeave);
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VideoChat.socket.on("full", chatRoomFull);
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VideoChat.socket.on("offer", VideoChat.onOffer);
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VideoChat.socket.on("willInitiateCall", VideoChat.call);
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// Set up listeners on the socket
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VideoChat.socket.on("candidate", VideoChat.onCandidate);
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VideoChat.socket.on("answer", VideoChat.onAnswer);
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VideoChat.socket.on("requestToggleCaptions", () => toggleSendCaptions());
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VideoChat.socket.on("recieveCaptions", (captions) =>
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recieveCaptions(captions)
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);
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},
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call: function (uuid, room) {
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logIt(`call >>> Initiating call with ${uuid}...`);
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VideoChat.socket.on(
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"token",
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VideoChat.establishConnection(uuid, function (a) {
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VideoChat.createOffer(a);
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})
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);
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VideoChat.socket.emit("token", roomHash, uuid);
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},
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onLeave: function(uuid) {
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logIt("disconnected - UUID " + uuid);
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// Remove video element
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VideoChat.remoteVideoWrapper.removeChild(
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document.querySelectorAll(`[uuid="${uuid}"]`)[0]
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);
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// Delete connection & metadata
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VideoChat.connected.delete(uuid);
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VideoChat.peerConnections.get(uuid).close(); // This is necessary, because otherwise the RTC connection isn't closed
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VideoChat.peerConnections.delete(uuid);
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dataChannel.delete(uuid);
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if (VideoChat.peerConnections.size === 0) {
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displayWaitingCaption();
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}
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},
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establishConnection: function (correctUuid, callback) {
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return function (token, uuid) {
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if (correctUuid != uuid) {
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return;
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}
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logIt(`<<< Received token, connecting to ${uuid}`);
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// Initialise localICEcandidates for peer uuid to empty array
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VideoChat.localICECandidates[uuid] = [];
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// Initialise connection status with peer uuid to false
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VideoChat.connected.set(uuid, false);
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// Set up a new RTCPeerConnection using the token's iceServers.
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VideoChat.peerConnections.set(
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uuid,
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new RTCPeerConnection({
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iceServers: token.iceServers,
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})
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);
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// Add the local video stream to the peerConnection.
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VideoChat.localStream.getTracks().forEach(function (track) {
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VideoChat.peerConnections
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.get(uuid)
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.addTrack(track, VideoChat.localStream);
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});
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// Add general purpose data channel to peer connection,
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// used for text chats, captions, and toggling sending captions
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dataChannel.set(
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uuid,
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VideoChat.peerConnections.get(uuid).createDataChannel("chat", {
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negotiated: true,
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// both peers must have same id
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id: 0,
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})
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);
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// Handle different dataChannel types
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dataChannel.get(uuid).onmessage = function (event) {
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const receivedData = event.data;
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// First 4 chars represent data type
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const dataType = receivedData.substring(0, 4);
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const cleanedMessage = receivedData.slice(4);
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if (dataType === "mes:") {
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handleRecieveMessage(cleanedMessage, hueToColor(VideoChat.peerColors.get(uuid)));
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} else if (dataType === "cap:") {
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recieveCaptions(cleanedMessage);
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} else if (dataType === "tog:") {
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toggleSendCaptions();
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} else if (dataType === "clr:") {
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setStreamColor(uuid, cleanedMessage);
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}
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};
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// Called when dataChannel is successfully opened
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dataChannel.get(uuid).onopen = function (event) {
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logIt("dataChannel opened");
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setStreamColor(uuid);
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};
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// Set up callbacks for the connection generating iceCandidates or
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// receiving the remote media stream. Wrapping callback functions
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// to pass in the peer uuids.
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VideoChat.peerConnections.get(uuid).onicecandidate = function (event) {
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VideoChat.onIceCandidate(event, uuid);
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};
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VideoChat.peerConnections.get(uuid).onaddstream = function (event) {
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VideoChat.onAddStream(event, uuid);
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};
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// Called when there is a change in connection state
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VideoChat.peerConnections.get(
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uuid
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).oniceconnectionstatechange = function (event) {
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switch (VideoChat.peerConnections.get(uuid).iceConnectionState) {
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case "connected":
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logIt("connected");
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break;
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case "disconnected":
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// Disconnects are handled server-side
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logIt("disconnected - UUID " + uuid);
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break;
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case "failed":
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logIt("failed");
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// Refresh page if connection has failed
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location.reload();
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break;
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case "closed":
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logIt("closed");
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break;
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}
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};
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callback(uuid);
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};
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},
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// When the peerConnection generates an ice candidate, send it over the socket to the peer.
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onIceCandidate: function (event, uuid) {
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logIt("onIceCandidate");
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if (event.candidate) {
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logIt(
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`<<< Received local ICE candidate from STUN/TURN server (${event.candidate.address}) for connection with ${uuid}`
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);
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if (VideoChat.connected.get(uuid)) {
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logIt(`>>> Sending local ICE candidate (${event.candidate.address})`);
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VideoChat.socket.emit(
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"candidate",
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JSON.stringify(event.candidate),
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roomHash,
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uuid
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);
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} else {
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// If we are not 'connected' to the other peer, we are buffering the local ICE candidates.
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// This most likely is happening on the "caller" side.
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// The peer may not have created the RTCPeerConnection yet, so we are waiting for the 'answer'
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// to arrive. This will signal that the peer is ready to receive signaling.
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VideoChat.localICECandidates[uuid].push(event.candidate);
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}
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}
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},
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// When receiving a candidate over the socket, turn it back into a real
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// RTCIceCandidate and add it to the peerConnection.
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onCandidate: function (candidate, uuid) {
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// Update caption text
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captionText.text("Found other user... connecting");
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rtcCandidate = new RTCIceCandidate(JSON.parse(candidate));
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logIt(
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`onCandidate <<< Received remote ICE candidate (${rtcCandidate.address} - ${rtcCandidate.relatedAddress})`
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);
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VideoChat.peerConnections.get(uuid).addIceCandidate(rtcCandidate);
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},
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// Create an offer that contains the media capabilities of the browser.
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createOffer: function (uuid) {
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logIt(`createOffer to ${uuid} >>> Creating offer...`);
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VideoChat.peerConnections.get(uuid).createOffer(
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function (offer) {
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// If the offer is created successfully, set it as the local description
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// and send it over the socket connection to initiate the peerConnection
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// on the other side.
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VideoChat.peerConnections.get(uuid).setLocalDescription(offer);
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VideoChat.socket.emit("offer", JSON.stringify(offer), roomHash, uuid);
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},
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function (err) {
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logIt("failed offer creation");
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logIt(err, true);
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}
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);
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},
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// Create an answer with the media capabilities that the client and peer browsers share.
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// This function is called with the offer from the originating browser, which
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// needs to be parsed into an RTCSessionDescription and added as the remote
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// description to the peerConnection object. Then the answer is created in the
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// same manner as the offer and sent over the socket.
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createAnswer: function (offer, uuid) {
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logIt("createAnswer");
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rtcOffer = new RTCSessionDescription(JSON.parse(offer));
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logIt(`>>> Creating answer to ${uuid}`);
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VideoChat.peerConnections.get(uuid).setRemoteDescription(rtcOffer);
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VideoChat.peerConnections.get(uuid).createAnswer(
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function (answer) {
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VideoChat.peerConnections.get(uuid).setLocalDescription(answer);
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VideoChat.socket.emit("answer", JSON.stringify(answer), roomHash, uuid);
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},
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function (err) {
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logIt("Failed answer creation.");
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logIt(err, true);
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}
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);
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},
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// When a browser receives an offer, set up a callback to be run when the
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// ephemeral token is returned from Twilio.
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onOffer: function (offer, uuid) {
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logIt("onOffer <<< Received offer");
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VideoChat.socket.on(
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"token",
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VideoChat.establishConnection(uuid, function (a) {
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VideoChat.createAnswer(offer, a);
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})
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);
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VideoChat.socket.emit("token", roomHash, uuid);
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},
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// When an answer is received, add it to the peerConnection as the remote description.
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onAnswer: function (answer, uuid) {
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logIt(`onAnswer <<< Received answer from ${uuid}`);
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var rtcAnswer = new RTCSessionDescription(JSON.parse(answer));
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// Set remote description of RTCSession
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VideoChat.peerConnections.get(uuid).setRemoteDescription(rtcAnswer);
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// The caller now knows that the callee is ready to accept new ICE candidates, so sending the buffer over
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VideoChat.localICECandidates[uuid].forEach((candidate) => {
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logIt(`>>> Sending local ICE candidate (${candidate.address})`);
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// Send ice candidate over websocket
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VideoChat.socket.emit(
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"candidate",
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JSON.stringify(candidate),
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roomHash,
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uuid
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);
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});
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// Reset the buffer of local ICE candidates. This is not really needed, but it's good practice
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// VideoChat.localICECandidates[uuid] = []; // TESTING
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},
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// Called when a stream is added to the peer connection
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onAddStream: function (event, uuid) {
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logIt("onAddStream <<< Received new stream from remote. Adding it...");
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// Create new remote video source in wrapper
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// Create a <video> node
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var node = document.createElement("video");
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node.setAttribute("autoplay", "");
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node.setAttribute("playsinline", "");
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node.setAttribute("id", "remote-video");
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node.setAttribute("uuid", uuid);
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VideoChat.remoteVideoWrapper.appendChild(node);
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// Update remote video source
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VideoChat.remoteVideoWrapper.lastChild.srcObject = event.stream;
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// Close the initial share url snackbar
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Snackbar.close();
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// Remove the loading gif from video
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VideoChat.remoteVideoWrapper.lastChild.style.background = "none";
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// Update connection status
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VideoChat.connected.set(uuid, true);
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// Hide caption status text
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captionText.fadeOut();
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// Reposition local video after a second, as there is often a delay
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// between adding a stream and the height of the video div changing
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setTimeout(() => rePositionLocalVideo(), 500);
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},
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};
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// Get name of browser session using user agent
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function getBrowserName() {
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var name = "Unknown";
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if (window.navigator.userAgent.indexOf("MSIE") !== -1) {
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} else if (window.navigator.userAgent.indexOf("Firefox") !== -1) {
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name = "Firefox";
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} else if (window.navigator.userAgent.indexOf("Opera") !== -1) {
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name = "Opera";
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} else if (window.navigator.userAgent.indexOf("Chrome") !== -1) {
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name = "Chrome";
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} else if (window.navigator.userAgent.indexOf("Safari") !== -1) {
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name = "Safari";
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}
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return name;
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}
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// Basic logging class wrapper
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function logIt(message, error) {
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console.log(message);
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}
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// Called when socket receives message that room is full
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function chatRoomFull() {
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alert(
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"Chat room is full. Check to make sure you don't have multiple open tabs, or try with a new room link"
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);
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// Exit room and redirect
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window.location.href = "/newcall";
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}
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// Reposition local video to top left of remote video
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function rePositionLocalVideo() {
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// Get position of remote video
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var bounds = remoteVideosWrapper.position();
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let localVideo = $("#local-video");
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if (
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/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
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navigator.userAgent
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)
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) {
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bounds.top = $(window).height() * 0.7;
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bounds.left += 10;
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} else {
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bounds.top += 10;
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bounds.left += 10;
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}
|
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// Set position of local video
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$("#moveable").css(bounds);
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}
|
|
|
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// Reposition captions to bottom of video
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function rePositionCaptions() {
|
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// Get remote video position
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var bounds = remoteVideosWrapper.position();
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bounds.top -= 10;
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bounds.top += remoteVideosWrapper.height() - 1 * captionText.height();
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// Reposition captions
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captionText.css(bounds);
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}
|
|
|
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// Called when window is resized
|
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function windowResized() {
|
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rePositionLocalVideo();
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rePositionCaptions();
|
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}
|
|
|
|
// Checks if connected to at least one peer
|
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function isConnected() {
|
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var connected = false;
|
|
|
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// No way to 'break' forEach -> we go through all anyway
|
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VideoChat.connected.forEach(function (value, key, map) {
|
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if (value) {
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connected = true;
|
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}
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});
|
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return connected;
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}
|
|
|
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function sendToAllDataChannels(message) {
|
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// key is UUID, value is dataChannel object
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|
dataChannel.forEach(function (value, key, map) {
|
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value.send(message);
|
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});
|
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}
|
|
|
|
// Fullscreen
|
|
// function openFullscreen() {
|
|
// try {
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|
// // 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();
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|
// } else if (elem.mozRequestFullScreen) {
|
|
// /* Firefox */
|
|
// elem.mozRequestFullScreen();
|
|
// } else if (elem.webkitRequestFullscreen) {
|
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// /* Chrome, Safari and Opera */
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//
|
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// elem.webkitRequestFullscreen();
|
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// setTimeout(windowResized, 1000);
|
|
// } else if (elem.msRequestFullscreen) {
|
|
// /* IE/Edge */
|
|
// elem.msRequestFullscreen();
|
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// }
|
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// } else {
|
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// isFullscreen = false;
|
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// VideoChat.remoteVideo.classList.remove("fullscreen");
|
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// if (document.exitFullscreen) {
|
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// document.exitFullscreen();
|
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// } else if (document.mozCancelFullScreen) {
|
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// /* Firefox */
|
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// document.mozCancelFullScreen();
|
|
// } else if (document.webkitExitFullscreen) {
|
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// /* Chrome, Safari and Opera */
|
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// document.webkitExitFullscreen();
|
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// } else if (document.msExitFullscreen) {
|
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// /* IE/Edge */
|
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// document.msExitFullscreen();
|
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// }
|
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// }
|
|
// } catch (e) {
|
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// logIt(e);
|
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// }
|
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// setTimeout(windowResized, 1000);
|
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// }
|
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// End Fullscreen
|
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|
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// 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 = stream;
|
|
// 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
|
|
|
|
// 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: ${border}"><div class="message">` +
|
|
msg +
|
|
"</div></div></div>"
|
|
);
|
|
}
|
|
}
|
|
|
|
// Listen for enter press on chat input
|
|
chatInput.addEventListener("keypress", function (event) {
|
|
if (event.keyCode === 13) {
|
|
// Prevent page refresh on enter
|
|
event.preventDefault();
|
|
var msg = chatInput.value;
|
|
// Prevent cross site scripting
|
|
msg = msg.replace(/</g, "<").replace(/>/g, ">");
|
|
// Make links clickable
|
|
msg = msg.autoLink();
|
|
// Send message over data channel
|
|
sendToAllDataChannels("mes:" + msg);
|
|
// Add message to screen
|
|
addMessageToScreen(msg, VideoChat.borderColor, true);
|
|
// Auto scroll chat down
|
|
chatZone.scrollTop(chatZone[0].scrollHeight);
|
|
// Clear chat input
|
|
chatInput.value = "";
|
|
}
|
|
});
|
|
|
|
// Called when a message is recieved over the dataChannel
|
|
function handleRecieveMessage(msg, color) {
|
|
// Add message to screen
|
|
addMessageToScreen(msg, color, false);
|
|
// Auto scroll chat down
|
|
chatZone.scrollTop(chatZone[0].scrollHeight);
|
|
// Show chat if hidden
|
|
if (entireChat.is(":hidden")) {
|
|
toggleChat();
|
|
}
|
|
}
|
|
|
|
function uuidToHue(uuid) {
|
|
// Using uuid to generate random, unique pastel color
|
|
var hash = 0;
|
|
for (var i = 0; i < uuid.length; i++) {
|
|
hash = uuid.charCodeAt(i) + ((hash << 5) - hash);
|
|
hash = hash & hash;
|
|
}
|
|
var hue = Math.abs(hash % 360);
|
|
// Ensure color is not similar to other colors
|
|
var availColors = Array.from({length: 6}, (x,i) => i*60);
|
|
VideoChat.peerColors.forEach(function(value, key, map) {availColors[Math.floor(value/60)] = null});
|
|
if (availColors[Math.floor(hue/60)] == null) {
|
|
for (var i = 0; i < availColors.length; i++) {
|
|
if (availColors[i] != null) {
|
|
hue = (hue % 60) + availColors[i];
|
|
availColors[i] = null;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
VideoChat.peerColors.set(uuid, hue);
|
|
return hue;
|
|
}
|
|
|
|
function hueToColor(hue) {
|
|
return `hsl(${hue},100%,70%)`
|
|
}
|
|
|
|
// Sets the border color of uuid's stream
|
|
function setStreamColor(uuid) {
|
|
const hue = uuidToHue(uuid);
|
|
document.querySelectorAll(`[uuid="${uuid}"]`)[0].style.border = `3px solid ${hueToColor(hue)}`;
|
|
}
|
|
|
|
// 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 ||
|
|
VideoChat.remoteVideoWrapper.lastChild.webkitSetPresentationMode
|
|
) {
|
|
if (document.pictureInPictureElement) {
|
|
document.exitPictureInPicture().catch((error) => {
|
|
logIt("Error exiting pip.");
|
|
logIt(error);
|
|
});
|
|
} else if (VideoChat.remoteVideoWrapper.lastChild.webkitPresentationMode === "inline") {
|
|
VideoChat.remoteVideoWrapper.lastChild.webkitSetPresentationMode("picture-in-picture");
|
|
} else if (
|
|
VideoChat.remoteVideoWrapper.lastChild.webkitPresentationMode === "picture-in-picture"
|
|
) {
|
|
VideoChat.remoteVideoWrapper.lastChild.webkitSetPresentationMode("inline");
|
|
} else {
|
|
VideoChat.remoteVideoWrapper.lastChild.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();
|
|
}
|
|
|
|
window.onbeforeunload = function () {
|
|
VideoChat.socket.emit("leave", roomHash);
|
|
return null;
|
|
};
|
|
|
|
|
|
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();
|