Commit acdbfae79726ea4f8f6b37bc223540ae5ecc093f
sustained: fix timeout bug
Matt McKegg committed on 10/28/2017, 6:45:49 AMParent: 91a7ee50b4fb44a1b2e9f036f697555c912d549d
Files changed
| lib/sustained.js | changed |
| lib/sustained.js | ||
|---|---|---|
| @@ -8,22 +8,23 @@ | ||
| 8 | 8 | |
| 9 | 9 | function Sustained (obs, timeThreshold, checkUpdateImmediately) { |
| 10 | 10 | var outputValue = Value(obs()) |
| 11 | 11 | var lastValue = null |
| 12 | + var timer = null | |
| 12 | 13 | |
| 13 | 14 | return computed(outputValue, v => v, { |
| 14 | 15 | onListen: () => watch(obs, onChange) |
| 15 | 16 | }) |
| 16 | 17 | |
| 17 | 18 | function onChange (value) { |
| 18 | 19 | if (checkUpdateImmediately && checkUpdateImmediately(value)) { // update immediately for falsy values |
| 19 | - clearTimeout() | |
| 20 | + clearTimeout(timer) | |
| 20 | 21 | update() |
| 21 | 22 | } else if (value !== lastValue) { |
| 22 | - clearTimeout() | |
| 23 | - setTimeout(update, timeThreshold) | |
| 24 | - lastValue = value | |
| 23 | + clearTimeout(timer) | |
| 24 | + timer = setTimeout(update, timeThreshold) | |
| 25 | 25 | } |
| 26 | + lastValue = value | |
| 26 | 27 | } |
| 27 | 28 | |
| 28 | 29 | function update () { |
| 29 | 30 | var value = obs() |
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