commit 18/06/2025

src/html/assets/js/connection.js

@@ -0,0 +1,35 @@
+console.log("Initializing websocket");
+  if (window.socket==null) {
+      window.socket = new WebSocket("ws://" + location.host + "/ws");
+      console.log("creating window.socket");
+  } else {
+      console.log("window.socket already exists");
+  }
+
+  socket.onopen = () => {
+    console.log("WebSocket connected");
+  };
+
+  socket.onmessage = (event) => {
+    const data = JSON.parse(event.data);
+    console.log("Received from server:", data);
+  };
+
+  socket.onerror = (err) => {
+    console.error("WebSocket error:", err);
+  };
+
+  socket.onclose = () => {
+    console.log("WebSocket closed");
+  };
+
+window.send_data = function(value){
+    if (socket.readyState === WebSocket.OPEN){
+        socket.send(value);
+        console.log("Sent data : "+value);
+    } else {
+        setTimeout(() => send_data(value),50)
+        console.log("Failed to send_data, socket readyState = "+socket.readyState);
+    }
+}
+