main
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Last change
on this file since d24f17c was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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Initial commit
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-
Property mode
set to
100644
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File size:
968 bytes
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| [d24f17c] | 1 | const { addAbortListener } = require('../core/util')
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| 2 | const { RequestAbortedError } = require('../core/errors')
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| 3 |
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| 4 | const kListener = Symbol('kListener')
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| 5 | const kSignal = Symbol('kSignal')
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| 6 |
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| 7 | function abort (self) {
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| 8 | if (self.abort) {
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| 9 | self.abort()
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| 10 | } else {
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| 11 | self.onError(new RequestAbortedError())
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| 12 | }
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| 13 | }
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| 14 |
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| 15 | function addSignal (self, signal) {
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| 16 | self[kSignal] = null
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| 17 | self[kListener] = null
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| 18 |
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| 19 | if (!signal) {
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| 20 | return
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| 21 | }
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| 22 |
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| 23 | if (signal.aborted) {
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| 24 | abort(self)
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| 25 | return
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| 26 | }
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| 27 |
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| 28 | self[kSignal] = signal
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| 29 | self[kListener] = () => {
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| 30 | abort(self)
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| 31 | }
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| 32 |
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| 33 | addAbortListener(self[kSignal], self[kListener])
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| 34 | }
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| 35 |
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| 36 | function removeSignal (self) {
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| 37 | if (!self[kSignal]) {
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| 38 | return
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| 39 | }
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| 40 |
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| 41 | if ('removeEventListener' in self[kSignal]) {
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| 42 | self[kSignal].removeEventListener('abort', self[kListener])
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| 43 | } else {
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| 44 | self[kSignal].removeListener('abort', self[kListener])
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| 45 | }
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| 46 |
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| 47 | self[kSignal] = null
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| 48 | self[kListener] = null
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| 49 | }
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| 50 |
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| 51 | module.exports = {
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| 52 | addSignal,
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| 53 | removeSignal
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| 54 | }
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