63 lines
2.2 KiB
JavaScript
63 lines
2.2 KiB
JavaScript
/**
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* GsWebSocket to do Ghostream signalling
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*/
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export class GsWebSocket {
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constructor() {
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const protocol = (window.location.protocol === "https:") ? "wss://" : "ws://";
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this.url = protocol + window.location.host + "/_ws/";
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// Open WebSocket
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this._open();
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// Configure events
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this.socket.addEventListener("open", () => {
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console.log("[WebSocket] Connection established");
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});
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this.socket.addEventListener("close", () => {
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console.log("[WebSocket] Connection closed, retrying connection in 1s...");
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setTimeout(() => this._open(), 1000);
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});
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this.socket.addEventListener("error", () => {
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console.log("[WebSocket] Connection errored, retrying connection in 1s...");
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setTimeout(() => this._open(), 1000);
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});
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}
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_open() {
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console.log(`[WebSocket] Connecting to ${this.url}...`);
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this.socket = new WebSocket(this.url);
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}
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/**
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* Send local WebRTC session description to remote.
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* @param {SessionDescription} localDescription WebRTC local SDP
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* @param {string} stream Name of the stream
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* @param {string} quality Requested quality
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*/
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sendLocalDescription(localDescription, stream, quality) {
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if (this.socket.readyState !== 1) {
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console.log("[WebSocket] Waiting for connection to send data...");
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setTimeout(() => this.sendDescription(localDescription, stream, quality), 100);
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return;
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}
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console.log("[WebSocket] Sending WebRTC local session description");
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this.socket.send(JSON.stringify({
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"webRtcSdp": localDescription,
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"stream": stream,
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"quality": quality
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}));
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}
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/**
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* Set callback function on new remote session description.
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* @param {Function} callback Function called when data is received
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*/
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onRemoteDescription(callback) {
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this.socket.addEventListener("message", (event) => {
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console.log("[WebSocket] Received WebRTC remote session description");
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const sdp = new RTCSessionDescription(JSON.parse(event.data));
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callback(sdp);
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});
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}
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}
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