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fallback for platforms missing AbortController

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Bruno Windels 2019-06-26 19:49:49 +02:00
parent b3095112cd
commit ca4361248f
1 changed files with 17 additions and 4 deletions
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17
src/matrix/hs-api.js
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@ -6,9 +6,22 @@ import {
class RequestWrapper { class RequestWrapper {
constructor(promise, controller) { constructor(promise, controller) {
if (!controller) {
const abortPromise = new Promise((_, reject) => {
this._controller = {
abort() {
const err = new Error("fetch request aborted");
err.name = "AbortError";
reject(err);
}
};
});
this._promise = Promise.race([promise, abortPromise]);
} else {
this._promise = promise; this._promise = promise;
this._controller = controller; this._controller = controller;
} }
}
abort() { abort() {
this._controller.abort(); this._controller.abort();
@ -47,13 +60,13 @@ export default class HomeServerApi {
headers.append("Content-Type", "application/json"); headers.append("Content-Type", "application/json");
bodyString = JSON.stringify(body); bodyString = JSON.stringify(body);
} }
const controller = new AbortController(); const controller = typeof AbortController === "function" ? new AbortController() : null;
// TODO: set authenticated headers with second arguments, cache them // TODO: set authenticated headers with second arguments, cache them
let promise = fetch(url, { let promise = fetch(url, {
method, method,
headers, headers,
body: bodyString, body: bodyString,
signal: controller.signal signal: controller && controller.signal
}); });
promise = promise.then(async (response) => { promise = promise.then(async (response) => {
if (response.ok) { if (response.ok) {