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Restore looping over entries. Needed for very fast scrolling

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This commit is contained in:
Trevor Buckner
2024-12-23 23:08:30 -05:00
parent 3909d5aef9
commit 85f1da942f
1 changed files with 12 additions and 8 deletions
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20
client/homebrew/brewRenderer/brewRenderer.jsx
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@@ -45,20 +45,24 @@ const BrewPage = (props)=>{
// Observer for tracking pages within the `.pages` div
const visibleObserver = new IntersectionObserver(
(entries)=>{
if(entries[0].isIntersecting)
props.onVisibilityChange(props.index + 1, true, false); // add page to array of visible pages.
else
props.onVisibilityChange(props.index + 1, false, false);
},
entries.forEach((entry)=>{
if(entry.isIntersecting)
props.onVisibilityChange(props.index + 1, true, false); // add page to array of visible pages.
else
props.onVisibilityChange(props.index + 1, false, false);
}
)},
{ threshold: .3, rootMargin: '0px 0px 0px 0px' } // detect when >30% of page is within bounds.
);
// Observer for tracking the page at the center of the iframe.
const centerObserver = new IntersectionObserver(
(entries)=>{
if(entries[0].isIntersecting)
props.onVisibilityChange(props.index + 1, true, true); // Set this page as the center page
},
entries.forEach((entry)=>{
if(entry.isIntersecting)
props.onVisibilityChange(props.index + 1, true, true); // Set this page as the center page
}
)},
{ threshold: 0, rootMargin: '-50% 0px -50% 0px' } // Detect when the page is at the center
);