38 lines
975 B
JavaScript
38 lines
975 B
JavaScript
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Elm.Native.WebSocket = function(elm) {
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'use strict';
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elm.Native = elm.Native || {};
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if (elm.Native.WebSocket) return elm.Native.WebSocket;
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var Signal = Elm.Signal(elm);
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var JS = Elm.JavaScript(elm);
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var List = Elm.Native.List(elm);
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function open(url, outgoing) {
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var incoming = Signal.constant(List.Nil);
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var ws = new WebSocket(JS.fromString(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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elm.notify(incoming.id, JS.toString(event.data));
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};
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function send(msg) {
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var s = JS.fromString(msg);
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ready ? ws.send(s) : pending.push(s);
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}
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function take1(x,y) { return x }
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return A3(Signal.lift2, F2(take1), incoming, A2(Signal.lift, send, outgoing));
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}
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return elm.Native.WebSocket = { open: F2(open) };
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};
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