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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| import { useCallback, useEffect, useState } from 'react'; | ||
| import { getOutlineSetting } from '../containers/outline'; | ||
| import { isMobile } from '../utils/common'; | ||
| import EventBus from '../utils/event-bus'; | ||
| import { INTERNAL_EVENTS } from '../constants/event-types'; | ||
|
|
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| const useContainerStyle = (scrollRef) => { | ||
|
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| const [containerStyle, setContainerStyle] = useState({}); | ||
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| // Adjust article container margin-left value according to isShown of the outline and width of window | ||
| const handleWindowResize = useCallback(() => { | ||
| const rect = scrollRef.current.getBoundingClientRect(); | ||
| const articleElement = document.querySelector('.article'); | ||
| const articleRect = articleElement ? articleElement.getBoundingClientRect() : null; | ||
| const isOutlineShow = getOutlineSetting(); | ||
| if (isOutlineShow && articleRect && (rect.width - articleRect.width) / 2 < 280) { | ||
| setContainerStyle({ marginLeft: 280 }); | ||
| } else { | ||
| setContainerStyle({}); | ||
| } | ||
| }, [scrollRef]); | ||
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| useEffect(() => { | ||
| if (isMobile) return; | ||
| handleWindowResize(); | ||
| window.addEventListener('resize', handleWindowResize); | ||
| const eventBus = EventBus.getInstance(); | ||
| const unsubscribeOutline = eventBus.subscribe(INTERNAL_EVENTS.OUTLINE_STATE_CHANGED, handleWindowResize); | ||
| const unsubscribeResizeArticle = eventBus.subscribe(INTERNAL_EVENTS.RESIZE_ARTICLE, handleWindowResize); | ||
| return () => { | ||
| window.removeEventListener('resize', handleWindowResize); | ||
| unsubscribeOutline(); | ||
| unsubscribeResizeArticle(); | ||
| }; | ||
| // eslint-disable-next-line react-hooks/exhaustive-deps | ||
| }, []); | ||
|
|
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| return { | ||
| containerStyle | ||
| }; | ||
| }; | ||
|
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| export default useContainerStyle; |
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