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index.ts
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index.ts
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import { computed, ref } from 'vue-demi'
import { useEventListener } from '../useEventListener'
import type { ConfigurableWindow } from '../_configurable'
import { defaultWindow } from '../_configurable'
export interface UseWindowScrollOptions extends ConfigurableWindow {
behavior?: ScrollBehavior
}
/**
* Reactive window scroll.
*
* @see https://vueuse.org/useWindowScroll
* @param options
*/
export function useWindowScroll(options: UseWindowScrollOptions = {}) {
const { window = defaultWindow, behavior = 'auto' } = options
if (!window) {
return {
x: ref(0),
y: ref(0),
}
}
const internalX = ref(window.scrollX)
const internalY = ref(window.scrollY)
const x = computed({
get() {
return internalX.value
},
set(x: number) {
scrollTo({ left: x, behavior })
},
})
const y = computed({
get() {
return internalY.value
},
set(y: number) {
scrollTo({ top: y, behavior })
},
})
useEventListener(
window,
'scroll',
() => {
internalX.value = window.scrollX
internalY.value = window.scrollY
},
{
capture: false,
passive: true,
},
)
return { x, y }
}
export type UseWindowScrollReturn = ReturnType<typeof useWindowScroll>