diff options
author | Claire <claire.github-309c@sitedethib.com> | 2022-10-11 10:41:15 +0200 |
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committer | Claire <claire.github-309c@sitedethib.com> | 2022-10-11 11:31:11 +0200 |
commit | d3879c07b1b2140bd19433ae06855894228bd90f (patch) | |
tree | 95d79cbf675206abaa937c3aaf964d323ec52acb /app/javascript/flavours/glitch/utils/scroll.js | |
parent | 1be97ce17fa6c5635b0922ec97378360d793db59 (diff) |
Rename flavours/glitch/util into flavours/glitch/utils
Diffstat (limited to 'app/javascript/flavours/glitch/utils/scroll.js')
-rw-r--r-- | app/javascript/flavours/glitch/utils/scroll.js | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/utils/scroll.js b/app/javascript/flavours/glitch/utils/scroll.js new file mode 100644 index 000000000..84fe58269 --- /dev/null +++ b/app/javascript/flavours/glitch/utils/scroll.js @@ -0,0 +1,32 @@ +const easingOutQuint = (x, t, b, c, d) => c * ((t = t / d - 1) * t * t * t * t + 1) + b; + +const scroll = (node, key, target) => { + const startTime = Date.now(); + const offset = node[key]; + const gap = target - offset; + const duration = 1000; + let interrupt = false; + + const step = () => { + const elapsed = Date.now() - startTime; + const percentage = elapsed / duration; + + if (percentage > 1 || interrupt) { + return; + } + + node[key] = easingOutQuint(0, elapsed, offset, gap, duration); + requestAnimationFrame(step); + }; + + step(); + + return () => { + interrupt = true; + }; +}; + +const isScrollBehaviorSupported = 'scrollBehavior' in document.documentElement.style; + +export const scrollRight = (node, position) => isScrollBehaviorSupported ? node.scrollTo({ left: position, behavior: 'smooth' }) : scroll(node, 'scrollLeft', position); +export const scrollTop = (node) => isScrollBehaviorSupported ? node.scrollTo({ top: 0, behavior: 'smooth' }) : scroll(node, 'scrollTop', 0); |