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feat(core): add alignSlides option to keep minimum full slides visi… #8021

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feat(core): add alignSlides option to keep minimum full slides visi… #8021

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1 change: 1 addition & 0 deletions src/core/defaults.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@ export default {
slidesOffsetAfter: 0, // in px
normalizeSlideIndex: true,
centerInsufficientSlides: false,
alignSlides: false,

// Disable swiper and hide navigation when container not overflow
watchOverflow: true,
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18 changes: 12 additions & 6 deletions src/core/update/updateSlides.mjs
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Expand Up @@ -195,21 +195,27 @@ export default function updateSlides() {

// Remove last grid elements depending on width
if (!params.centeredSlides) {
const minVisible = Math.floor(params.slidesPerView);
const lastAllowedSnapIndex = Math.max(slidesLength - minVisible, 0);

const newSlidesGrid = [];
for (let i = 0; i < snapGrid.length; i += 1) {
let slidesGridItem = snapGrid[i];
if (params.roundLengths) slidesGridItem = Math.floor(slidesGridItem);
if (snapGrid[i] <= swiper.virtualSize - swiperSize) {

/* keep this snap iff its *slide index* ≤ lastAllowedSnapIndex */
if (i <= lastAllowedSnapIndex && params.alignSlides) {
newSlidesGrid.push(slidesGridItem);
}
else if (snapGrid[i] <= swiper.virtualSize - swiperSize) {
newSlidesGrid.push(slidesGridItem);
}
}
snapGrid = newSlidesGrid;

if (
Math.floor(swiper.virtualSize - swiperSize) - Math.floor(snapGrid[snapGrid.length - 1]) >
1
) {
snapGrid.push(swiper.virtualSize - swiperSize);
if ((Math.floor(swiper.virtualSize - swiperSize) - Math.floor(snapGrid[snapGrid.length - 1]) > 1)
&& !params.alignSlides) {
snapGrid.push(swiper.virtualSize - swiperSize);
}
}
if (isVirtual && params.loop) {
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