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var session = new function() {
var __ws = null;
var __ping_timer = null;
var __missed_heartbeats = 0;
this.loadKvmdVersion = function() {
var http = tools.makeRequest("GET", "/kvmd/info", function() {
if (http.readyState === 4) {
if (http.status === 200) {
var version = JSON.parse(http.responseText).result.version;
$("kvmd-version").innerHTML = "kvmd " + version.kvmd;
$("about-version-kvmd").innerHTML = version.kvmd;
$("about-version-python").innerHTML = version.python;
$("about-version-platform").innerHTML = version.platform;
} else {
setTimeout(session.loadKvmdVersion, 1000);
}
}
});
};
this.startPoller = function() {
__ws = new WebSocket("ws://" + location.host + "/kvmd/ws");
__ws.onopen = __wsOpenHandler;
__ws.onmessage = __wsMessageHandler;
__ws.onerror = __wsErrorHandler;
__ws.onclose = __wsCloseHandler;
};
var __wsOpenHandler = function(event) {
$("link-led").className = "led-on";
tools.debug("WebSocket opened:", event);
atx.loadInitialState();
msd.loadInitialState();
hid.installCapture(__ws);
__missed_heartbeats = 0;
__ping_timer = setInterval(__pingServer, 1000);
};
var __wsMessageHandler = function(event) {
// tools.debug("WebSocket: received data:", event.data);
event = JSON.parse(event.data);
if (event.msg_type === "pong") {
__missed_heartbeats = 0;
} else if (event.msg_type === "event") {
if (event.msg.event === "atx_state") {
atx.setState(event.msg.event_attrs);
// } else if (event.msg.event === "atx_click") {
// atx.setButtonsBusy(event.msg.event_attrs.button);
} else if (event.msg.event === "msd_state") {
msd.setState(event.msg.event_attrs);
}
}
};
var __wsErrorHandler = function(event) {
tools.error("WebSocket error:", event);
if (__ws) {
__ws.onclose = null;
__ws.close();
__wsCloseHandler(null);
}
};
var __wsCloseHandler = function(event) {
$("link-led").className = "led-off";
tools.debug("WebSocket closed:", event);
if (__ping_timer) {
clearInterval(__ping_timer);
__ping_timer = null;
}
hid.clearCapture();
atx.clearState();
__ws = null;
setTimeout(session.startPoller, 1000);
};
var __pingServer = function(event) {
try {
__missed_heartbeats += 1;
if (__missed_heartbeats >= 5) {
throw new Error("Too many missed heartbeats");
}
__ws.send(JSON.stringify({"event_type": "ping"}));
} catch (err) {
tools.error("Ping error:", err.message);
if (__ws) {
__ws.onclose = null;
__ws.close();
__wsCloseHandler(null);
}
}
};
};
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