33 lines
892 B
JavaScript
33 lines
892 B
JavaScript
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function nativeWebSocket(elm) {
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"use strict";
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var JS = Elm.JavaScript;
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function open(url) { return function(outgoing) {
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var incoming = Elm.Signal.constant(Elm.Native.List.Nil);
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var ws = new window.WebSocket(JS.castStringToJSString(url));
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var pending = [];
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var ready = false;
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ws.onopen = function(e) {
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var len = pending.length;
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for (var i = 0; i < len; ++i) { ws.send(pending[i]); }
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ready = true;
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};
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ws.onmessage = function(event) {
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Dispatcher.notify(incoming.id, JS.castJSStringToString(event.data));
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};
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function send(msg) {
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var s = JS.castStringToJSString(msg);
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ready ? ws.send(s) : pending.push(s);
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}
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function take1(x) { return function(y) { return x; } }
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return Elm.Signal.lift2(take1)(incoming)(Elm.Signal.lift(send)(outgoing));
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};
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}
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elm.Native.WebSocket = {open:open};
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}
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