Remove old JS

web/static/js/main.js

@@ -1,18 +1,65 @@
 import { GSWebSocket } from "./modules/websocket.js";
 import { ViewerCounter } from "./modules/viewerCounter.js";
 
+// Some variables that need to be fixed by web page
+const ViewersCounterRefreshPeriod = 1000;
+const stream = "demo";
+let quality = "source";
+
 // Create WebSocket
 const s = new GSWebSocket();
-s.open(() => {
+s.open();
-    // FIXME open callback
+
-}, () => {
+// Register keyboard events
-    // FIXME close callback
+const viewer = document.getElementById("viewer");
+window.addEventListener("keydown", (event) => {
+    switch (event.key) {
+    case "f":
+        // F key put player in fullscreen
+        if (document.fullscreenElement !== null) {
+            document.exitFullscreen();
+        } else {
+            viewer.requestFullscreen();
+        }
+        break;
+    case "m":
+    case " ":
+        // M and space key mute player
+        viewer.muted = !viewer.muted;
+        event.preventDefault();
+        viewer.play();
+        break;
+    }
 });
 
 // Create viewer counter
-const streamName = "demo"; // FIXME
 const viewerCounter = new ViewerCounter(
     document.getElementById("connected-people"),
-    streamName,
+    stream,
 );
-viewerCounter.regularUpdate(1000);  // FIXME
+viewerCounter.regularUpdate(ViewersCounterRefreshPeriod);
+
+// Side widget toggler
+const sideWidgetToggle = document.getElementById("sideWidgetToggle");
+const sideWidget = document.getElementById("sideWidget");
+if (sideWidgetToggle !== null && sideWidget !== null) {
+    // On click, toggle side widget visibility
+    sideWidgetToggle.addEventListener("click", function () {
+        if (sideWidget.style.display === "none") {
+            sideWidget.style.display = "block";
+            sideWidgetToggle.textContent = "»";
+        } else {
+            sideWidget.style.display = "none";
+            sideWidgetToggle.textContent = "«";
+        }
+    });   
+}
+
+// Video quality toggler
+document.getElementById("quality").addEventListener("change", (event) => {
+    quality = event.target.value;
+    console.log(`Stream quality changed to ${quality}`);
+
+    // Restart the connection with a new quality
+    // FIXME
+});

web/static/js/modules/websocket.js

@@ -17,21 +17,18 @@ export class GsWebSocket {
      * @param {Function} openCallback Function called when connection is established. 
      * @param {Function} closeCallback Function called when connection is lost. 
      */
-    open(openCallback, closeCallback) {
+    open() {
         this._open();
-        this.socket.addEventListener("open", (event) => {
+        this.socket.addEventListener("open", () => {
             console.log("WebSocket opened");
-            openCallback(event);
         });
-        this.socket.addEventListener("close", (event) => {
+        this.socket.addEventListener("close", () => {
             console.log("WebSocket closed, retrying connection in 1s...");
             setTimeout(this._open, 1000);
-            closeCallback(event);
         });
-        this.socket.addEventListener("error", (event) => {
+        this.socket.addEventListener("error", () => {
             console.log("WebSocket errored, retrying connection in 1s...");
             setTimeout(this._open, 1000);
-            closeCallback(event);
         });
     }
 

web/static/js/sideWidget.js

@@ -1,12 +0,0 @@
-// Side widget toggler
-const sideWidgetToggle = document.getElementById("sideWidgetToggle")
-sideWidgetToggle.addEventListener("click", function () {
-    const sideWidget = document.getElementById("sideWidget")
-    if (sideWidget.style.display === "none") {
-        sideWidget.style.display = "block"
-        sideWidgetToggle.textContent = "»"
-    } else {
-        sideWidget.style.display = "none"
-        sideWidgetToggle.textContent = "«"
-    }
-})

web/static/js/videoQuality.js

@@ -1,9 +0,0 @@
-document.getElementById("quality").addEventListener("change", (event) => {
-    console.log(`Stream quality changed to ${event.target.value}`)
-
-    // Restart the connection with a new quality
-    peerConnection.close()
-    peerConnection = null
-    streamPath = window.location.href + event.target.value
-    startPeerConnection()
-})

web/static/js/viewer.js

@@ -1,97 +1,81 @@
-let peerConnection
+let peerConnection;
-let streamPath = window.location.href
+let streamPath = window.location.href;
+let stream = streamPath;
+let quality = "source";
 
-startPeerConnection = () => {
+
+const startPeerConnection = () => {
     // Init peer connection
     peerConnection = new RTCPeerConnection({
         iceServers: [{ urls: stunServers }]
-    })
+    });
 
     // On connection change, change indicator color
     // if connection failed, restart peer connection
     peerConnection.oniceconnectionstatechange = e => {
-        console.log("ICE connection state changed, " + peerConnection.iceConnectionState)
+        console.log("ICE connection state changed, " + peerConnection.iceConnectionState);
         switch (peerConnection.iceConnectionState) {
-            case "disconnected":
+        case "disconnected":
-                document.getElementById("connectionIndicator").style.fill = "#dc3545"
+            document.getElementById("connectionIndicator").style.fill = "#dc3545";
-                break
+            break;
-            case "checking":
+        case "checking":
-                document.getElementById("connectionIndicator").style.fill = "#ffc107"
+            document.getElementById("connectionIndicator").style.fill = "#ffc107";
-                break
+            break;
-            case "connected":
+        case "connected":
-                document.getElementById("connectionIndicator").style.fill = "#28a745"
+            document.getElementById("connectionIndicator").style.fill = "#28a745";
-                break
+            break;
-            case "closed":
+        case "closed":
-            case "failed":
+        case "failed":
-                console.log("Connection failed, restarting...")
+            console.log("Connection failed, restarting...");
-                peerConnection.close()
+            peerConnection.close();
-                peerConnection = null
+            peerConnection = null;
-                setTimeout(startPeerConnection, 1000)
+            setTimeout(startPeerConnection, 1000);
-                break
+            break;
         }
-    }
+    };
 
     // We want to receive audio and video
-    peerConnection.addTransceiver('video', { 'direction': 'sendrecv' })
+    peerConnection.addTransceiver("video", { "direction": "sendrecv" });
-    peerConnection.addTransceiver('audio', { 'direction': 'sendrecv' })
+    peerConnection.addTransceiver("audio", { "direction": "sendrecv" });
 
     // Create offer and set local description
     peerConnection.createOffer().then(offer => {
         // After setLocalDescription, the browser will fire onicecandidate events
-        peerConnection.setLocalDescription(offer)
+        peerConnection.setLocalDescription(offer);
-    }).catch(console.log)
+    }).catch(console.log);
 
     // When candidate is null, ICE layer has run out of potential configurations to suggest
     // so let's send the offer to the server
     peerConnection.onicecandidate = event => {
         if (event.candidate === null) {
             // Send offer to server
-            // The server know the stream name from the url
             // The server replies with its description
             // After setRemoteDescription, the browser will fire ontrack events
-            console.log("Sending session description to server")
+            console.log("Sending session description to server");
             fetch(streamPath, {
-                method: 'POST',
+                method: "POST",
                 headers: {
-                    'Accept': 'application/json',
+                    "Accept": "application/json",
-                    'Content-Type': 'application/json'
+                    "Content-Type": "application/json"
                 },
-                body: JSON.stringify(peerConnection.localDescription)
+                body: JSON.stringify({
+                    "webRtcSdp": peerConnection.localDescription,
+                    "stream": stream,
+                    "quality": quality
+                })
             })
                 .then(response => response.json())
                 .then((data) => peerConnection.setRemoteDescription(new RTCSessionDescription(data)))
-                .catch(console.log)
+                .catch(console.log);
         }
-    }
+    };
 
     // When video track is received, configure player
     peerConnection.ontrack = function (event) {
-        console.log(`New ${event.track.kind} track`)
+        console.log(`New ${event.track.kind} track`);
         if (event.track.kind === "video") {
-            const viewer = document.getElementById('viewer')
+            const viewer = document.getElementById("viewer");
-            viewer.srcObject = event.streams[0]
+            viewer.srcObject = event.streams[0];
         }
-    }
+    };
-}
+};
-
-// Register keyboard events
-let viewer = document.getElementById("viewer")
-window.addEventListener("keydown", (event) => {
-    switch (event.key) {
-        case 'f':
-            // F key put player in fullscreen
-            if (document.fullscreenElement !== null) {
-                document.exitFullscreen()
-            } else {
-                viewer.requestFullscreen()
-            }
-            break
-        case 'm':
-        case ' ':
-            // M and space key mute player
-            viewer.muted = !viewer.muted
-            event.preventDefault()
-            viewer.play()
-            break
-    }
-})

web/static/js/viewersCounter.js

@@ -1,12 +0,0 @@
-// Refresh viewer count by pulling metric from server
-function refreshViewersCounter(streamID, period) {
-    // Distinguish oneDomainPerStream mode
-    fetch("/_stats/" + streamID)
-        .then(response => response.json())
-        .then((data) => document.getElementById("connected-people").innerText = data.ConnectedViewers)
-        .catch(console.log)
-
-    setTimeout(() => {
-        refreshViewersCounter(streamID, period)
-    }, period)
-}

web/template/player.html

@@ -34,14 +34,11 @@
   {{end}}
 </div>
 
-{{if .WidgetURL}}<script src="/static/js/sideWidget.js"></script>{{end}}
+<script type="module" src="/static/js/main.js"></script>
-<script src="/static/js/videoQuality.js"></script>
-<script src="/static/js/viewer.js"></script>
-<script src="/static/js/viewersCounter.js"></script>
 <script>
   const stunServers = [
     {{range $id, $value := .Cfg.STUNServers}}
-    '{{$value}}',
+    "{{$value}}",
     {{end}}
   ]
   startPeerConnection()