Claude: Rate limit screenshots if identical

src/lib/WebVM.svelte

@@ -25,6 +25,7 @@
 	var blockCache = null;
 	var processCount = 0;
 	var curVT = 0;
+	var lastScreenshot = null;
 	function writeData(buf, vt)
 	{
 		if(vt != 1)
@@ -395,16 +396,34 @@
 			switch(tool.action)
 			{
 				case "screenshot":
+				{
+					var delayCount = 0;
+					while(1)
 					{
 						// TODO: Resize
 						var display = document.getElementById("display");
 						var dataUrl = display.toDataURL("image/png");
+						if(dataUrl == lastScreenshot)
+						{
+							// Delay at most 3 times
+							if(delayCount < 3)
+							{
+								// TODO: Defensive check, validate and remove
+								debugger;
+								delayCount++;
+								// Wait some time and retry
+								await new Promise(function(f, r) { setTimeout(f, 5000); });
+								continue;
+							}
+						}
+						lastScreenshot = dataUrl;
 						// Remove prefix from the encoded data
 						dataUrl = dataUrl.substring("data:image/png;base64,".length);
 						var imageSrc = { type: "base64", media_type: "image/png", data: dataUrl };
 						var contentObj = { type: "image", source: imageSrc };
 						return [ contentObj ];
 					}
+				}
 				case "mouse_move":
 				{
 					var coords = tool.coordinate;