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fix (virtual): even number of elements

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MickaelK
2023-12-05 17:28:09 +11:00
parent 14871b9bb7
commit 6acffc65b1
1 changed files with 2 additions and 4 deletions
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6
public/assets/pages/filespage/ctrl_filesystem.js
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@ -115,7 +115,7 @@ export default async function(render) {
); else if (fileEnd > files.length) {
// occur when files.length isn't a multiple of COLUMN_PER_ROW and
// we've scrolled to the bottom of the list
nextState = Math.floor(files.length / COLUMN_PER_ROW) - BLOCK_SIZE;
nextState = Math.ceil(files.length / COLUMN_PER_ROW) - BLOCK_SIZE - 1;
fileEnd = files.length;
do {
// add some padding to fileEnd to balance the list to the
@ -140,15 +140,13 @@ export default async function(render) {
n += 1;
}
// console.log(`n[${n}] state[${currentState} -> ${nextState}] files[${fileStart}:${fileEnd}]`)
if (n === 0) return;
// STEP3: update the DOM
if (diffSgn > 0) { // scroll down
// console.log("DOWN", n);
// // if (!isInViewport($list.firstChild)) // TODO
$list.appendChild($fs);
for (let i = 0; i < n; i++) $list.firstChild.remove();
} else { // scroll up
// console.log("UP", n)
$list.insertBefore($fs, $list.firstChild);
for (let i = 0; i < n; i++) $list.lastChild.remove();
}