54 lines
1.9 KiB
JavaScript
54 lines
1.9 KiB
JavaScript
|
/** PURE_IMPORTS_START tslib,_.._Observable,_.._Subscription PURE_IMPORTS_END */
|
||
|
|
import * as tslib_1 from "tslib";
|
||
|
|
import { Observable } from '../../Observable';
|
||
|
|
import { Subscription } from '../../Subscription';
|
||
|
|
export function fromFetch(input, init) {
|
||
|
|
return new Observable(function (subscriber) {
|
||
|
|
var controller = new AbortController();
|
||
|
|
var signal = controller.signal;
|
||
|
|
var abortable = true;
|
||
|
|
var unsubscribed = false;
|
||
|
|
var subscription = new Subscription();
|
||
|
|
subscription.add(function () {
|
||
|
|
unsubscribed = true;
|
||
|
|
if (abortable) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
var perSubscriberInit;
|
||
|
|
if (init) {
|
||
|
|
if (init.signal) {
|
||
|
|
if (init.signal.aborted) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var outerSignal_1 = init.signal;
|
||
|
|
var outerSignalHandler_1 = function () {
|
||
|
|
if (!signal.aborted) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
outerSignal_1.addEventListener('abort', outerSignalHandler_1);
|
||
|
|
subscription.add(function () { return outerSignal_1.removeEventListener('abort', outerSignalHandler_1); });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
perSubscriberInit = tslib_1.__assign({}, init, { signal: signal });
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
perSubscriberInit = { signal: signal };
|
||
|
|
}
|
||
|
|
fetch(input, perSubscriberInit).then(function (response) {
|
||
|
|
abortable = false;
|
||
|
|
subscriber.next(response);
|
||
|
|
subscriber.complete();
|
||
|
|
}).catch(function (err) {
|
||
|
|
abortable = false;
|
||
|
|
if (!unsubscribed) {
|
||
|
|
subscriber.error(err);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return subscription;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=fetch.js.map
|