46 lines
1.9 KiB
TypeScript
46 lines
1.9 KiB
TypeScript
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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import { HttpTransportType, IHubProtocol, JsonHubProtocol } from "@aspnet/signalr";
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import { MessagePackHubProtocol } from "@aspnet/signalr-protocol-msgpack";
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export const ECHOENDPOINT_URL = "http://" + document.location.host + "/echo";
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export function getHttpTransportTypes(): HttpTransportType[] {
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const transportTypes = [];
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if (typeof WebSocket !== "undefined") {
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transportTypes.push(HttpTransportType.WebSockets);
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}
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if (typeof EventSource !== "undefined") {
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transportTypes.push(HttpTransportType.ServerSentEvents);
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}
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transportTypes.push(HttpTransportType.LongPolling);
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return transportTypes;
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}
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export function eachTransport(action: (transport: HttpTransportType) => void) {
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getHttpTransportTypes().forEach((t) => {
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return action(t);
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});
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}
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export function eachTransportAndProtocol(action: (transport: HttpTransportType, protocol: IHubProtocol) => void) {
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const protocols: IHubProtocol[] = [new JsonHubProtocol()];
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// IE9 does not support XmlHttpRequest advanced features so disable for now
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// This can be enabled if we fix: https://github.com/aspnet/SignalR/issues/742
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if (typeof new XMLHttpRequest().responseType === "string") {
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// Because of TypeScript stuff, we can't get "ambient" or "global" declarations to work with the MessagePackHubProtocol module
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// This is only a limitation of the .d.ts file.
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// Everything works fine in the module
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protocols.push(new MessagePackHubProtocol());
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}
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getHttpTransportTypes().forEach((t) => {
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return protocols.forEach((p) => {
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if (t !== HttpTransportType.ServerSentEvents || !(p instanceof MessagePackHubProtocol)) {
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return action(t, p);
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}
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});
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});
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}
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