enhancement: #500 Flag for the ScrollSpy component that ensures the last active element remains visible + animationDuration option #504
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IvanPostu
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Nice, your video explaines it very clearly 👍 i will review the code tomorrow. |
wuda-io
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Sep 10, 2024
src/scrollspy.ts
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| function getDistanceToViewport(element) { | ||
| const rect = element.getBoundingClientRect(); | ||
| const distance = rect.top; | ||
| return distance; | ||
| } | ||
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| function smoothScrollIntoView(element, duration = 300) { | ||
| const targetPosition = element.getBoundingClientRect().top + (window.scrollY || window.pageYOffset); | ||
| const startPosition = (window.scrollY || window.pageYOffset); | ||
| const distance = targetPosition - startPosition; | ||
| const startTime = performance.now(); | ||
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| function scrollStep(currentTime) { | ||
| const elapsed = currentTime - startTime; | ||
| const progress = Math.min(elapsed / duration, 1); | ||
| const scrollY = startPosition + distance * progress; | ||
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| if (progress < 1) { | ||
| window.scrollTo(0, scrollY); | ||
| requestAnimationFrame(scrollStep); | ||
| } else { | ||
| window.scrollTo(0, targetPosition); | ||
| } | ||
| } | ||
| requestAnimationFrame(scrollStep); | ||
| } |
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i think this two functions should be inside of the class. The rest looks nice!
Can you place them as private functions, then i will merge. Thanks
IvanPostu
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fixes #500
Proposed changes
Screenshots (if appropriate) or codepen:
Demo Video
Types of changes
Checklist: