Source selector won't send command if already active

static/helpers.js

@@ -306,6 +306,14 @@ class SourceSelector {
 		button.textContent = this.name;
 		button.source_selector = this;
 		button.addEventListener("click", function(event) {
+			if (event.target.classList.contains("active")) {
+				console.log(`Did not send switch command (${command}): was already active`);
+				return;
+			}
+			if (event.target.classList.contains("requested")) {
+				console.log(`Did not send switch command (${command}): was already requested`);
+				return;
+			}
 			let source_selector = event.target.source_selector;
 			let command = "switch-video";
 			ws2.send(JSON.stringify({command: command, number: source_selector.number}));