add serialsock

NES_webiface/static/requests.js

@@ -0,0 +1,43 @@
+const Debug = true;
+
+var elementsCache = {};
+function $(id) {
+    if (elementsCache[id] === undefined)
+        elementsCache[id] = document.getElementById(id);
+    return elementsCache[id];
+}
+
+function dbg(text){
+	if(Debug) console.log("Debug message: " + text);
+}
+
+function sendrequest(req_STR, onOK, postdata){
+	var request = new XMLHttpRequest(), timeout_id;
+	dbg("send request " + req_STR);
+	var method = postdata ? "POST" : "GET";
+	request.open(method, req_STR, true);
+	//request.setRequestHeader("Accept-Charset", "koi8-r");
+	//request.overrideMimeType("multipart/form-data; charset=koi8-r"); 
+	request.onreadystatechange=function(){
+		if(request.readyState == 4){
+			if(request.status == 200){
+				clearTimeout(timeout_id);
+				if(onOK) onOK(request);
+			}
+			else{
+				clearTimeout(timeout_id);
+				parseErr("request sending error");
+			}
+		}
+	}
+	request.send(postdata);
+	timeout_id = setTimeout(function(){request.onreadystatechange=null; request.abort(); parseErr("request timeout");}, 5000);
+}
+
+function parseErr(txt){
+	console.log("Error: " + txt);
+	var msgDiv = $('errmsg');
+	if(!msgDiv) return;
+	msgDiv.innerHTML = "Error: " + txt;
+	setTimeout(function(){msgDiv.innerHTML = "";}, 3500);
+}