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43 lines
1.0 KiB
43 lines
1.0 KiB
2 years ago
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/**
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* Helper to abort upload requests if there has not been any progress for `timeout` ms.
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* Create an instance using `timer = new ProgressTimeout(10000, onTimeout)`
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* Call `timer.progress()` to signal that there has been progress of any kind.
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* Call `timer.done()` when the upload has completed.
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*/
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class ProgressTimeout {
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#aliveTimer
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#isDone = false
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#onTimedOut
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#timeout
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constructor (timeout, timeoutHandler) {
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this.#timeout = timeout
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this.#onTimedOut = timeoutHandler
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}
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progress () {
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// Some browsers fire another progress event when the upload is
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// cancelled, so we have to ignore progress after the timer was
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// told to stop.
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if (this.#isDone) return
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if (this.#timeout > 0) {
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clearTimeout(this.#aliveTimer)
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this.#aliveTimer = setTimeout(this.#onTimedOut, this.#timeout)
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}
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}
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done () {
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if (!this.#isDone) {
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clearTimeout(this.#aliveTimer)
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this.#aliveTimer = null
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this.#isDone = true
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}
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}
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}
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export default ProgressTimeout
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