Recreate event listener functions on preventSwipe change #31
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benkaiser
commented
Dec 16, 2020
index.js
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| element.current.removeEventListener(('mouseup'), mouseUp) | ||
| element.current.removeEventListener(('mouseleave'), mouseLeave) | ||
| } | ||
| }, [preventSwipe]) |
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@3DJakob should we add all of the props to this dependency list so they reference the latest handleSwipeReleased in the event listeners? I think this bug extends to the other props but I'm only changing preventSwipe (hence why I noticed the issue)
benkaiser
commented
Dec 16, 2020
| let speed = { x: 0, y: 0 } | ||
| let lastLocation = { x: 0, y: 0, time: new Date().getTime() } | ||
| let mouseIsClicked = false | ||
| const [offset, setOffset] = React.useState({ x: null, y: null }) |
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@3DJakob needed to move these to state, since they would get 'reset' every time useLayoutEffect was called. So if it got called on an element you were mid-way through dragging then the element would jump to the wrong position.
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(I'm open to better options that don't require re-calling useLayoutEffect many times)
blesson3
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Apr 29, 2022
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To ensure that changing preventSwipe prop in subsequent renders behaves correctly, we need to re-generate the event listeners so they use the latest
handleSwipeReleasedcallback.