1 files changed, 117 insertions, 0 deletions
diff --git a/htdocs/websock.js b/htdocs/websock.js
new file mode 100644
index 0000000..c429553
--- /dev/null
+++ b/htdocs/websock.js
@@ -0,0 +1,117 @@
+
+AfbCtxItf = (function(){
+
+	var UUID = undefined;
+	var TOKEN = undefined;
+
+	function AfbCtxItf(token, uuid) {
+		this.token = token;
+		this.uuid = uuid;
+	}
+
+	AfbCtxItf.prototype = {
+		get token() {return TOKEN;},
+		set token(tok) {if(tok) TOKEN=tok;},
+		get uuid() {return UUID;},
+		set uuid(id) {if(id) UUID=id;}
+	};
+
+	return AfbCtxItf;
+})();
+
+
+AfbWsItf = (function(){
+
+	var CALL = 2;
+	var RETOK = 3;
+	var RETERR = 4;
+
+	function AfbWsItf(base, onopen, onabort, ctx) {
+		ctx = ctx || new AfbCtxItf();
+		var wl = window.location;
+		var u = "ws://"+wl.host+"/"+base;
+		if (ctx.token) {
+			u = u + '?x-afb-token=' + ctx.token;
+			if (ctx.uuid)
+				u = u + '&x-afb-uuid=' + ctx.uuid;
+		}
+		this.ws = new (WebSocket || MozWebSocket)(u, [ "x-afb-ws-json1" ]);
+		this.pendings = {};
+		this.counter = 0;
+		this.ctx = ctx;
+		this.ws.onopen = onopen.bind(this);
+		this.ws.onerror = onerror.bind(this);
+		this.ws.onclose = onclose.bind(this);
+		this.ws.onmessage = onmessage.bind(this);
+		this.onopen = onopen;
+		this.onabort = onabort;
+	}
+
+	function onerror(event) {
+		var f = this.onabort;
+		if (f) {
+			delete this.onopen;
+			delete this.onabort;
+			f && f(this);
+		}
+		this.onerror && this.onerror(this);
+	}
+
+	function onopen(event) {
+		var f = this.onopen;
+		delete this.onopen;
+		delete this.onabort;
+		f && f(this);
+	}
+
+	function onclose(event) {
+		for (var id in this.pendings) {
+			var ferr = this.pendings[id].onerror;
+			ferr && ferr(null, this);
+		}
+		this.pendings = {};
+		this.onclose && this.onclose();
+	}
+
+	function onmessage(event) {
+		var obj = JSON.parse(event.data);
+		var code = obj[0];
+		var id = obj[1];
+		var ans = obj[2];
+		this.ctx.token = obj[3];
+		var pend;
+		if (id && id in this.pendings) {
+			pend = this.pendings[id];
+			delete this.pendings[id];
+		}
+		switch (code) {
+		case RETOK:
+			pend && pend.onsuccess && pend.onsuccess(ans, this);
+			break; 
+		case RETERR:
+		default:
+			pend && pend.onerror && pend.onerror(ans, this);
+			break; 
+		}
+	}
+
+	function close() {
+		this.ws.close();
+	}
+
+	function call(api, verb, request, onsuccess, onerror) {
+		var id = String(++this.counter);
+		this.pendings[id] = { onsuccess: onsuccess, onerror: onerror };
+		var arr = [CALL, id, api+"/"+verb, request ];
+		if (this.ctx.token) arr.push(this.ctx.token);
+		this.ws.send(JSON.stringify(arr));
+	}
+
+	AfbWsItf.prototype = {
+		close: close,
+		call: call
+	};
+
+	return AfbWsItf;
+})();
+