From c496835a2ce49065a9b282bbafe5629797bb3da4 Mon Sep 17 00:00:00 2001
From: Vladimir Kharlampidi <nolimits4web@gmail.com>
Date: Wed, 6 Sep 2023 13:15:17 +0300
Subject: [PATCH] fix(core): fix loop on centeredSlides slide to beginning

fixes #7011
---
 src/modules/pagination/pagination.mjs | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/modules/pagination/pagination.mjs b/src/modules/pagination/pagination.mjs
index 1d545fd63..79a44f7bd 100644
--- a/src/modules/pagination/pagination.mjs
+++ b/src/modules/pagination/pagination.mjs
@@ -79,10 +79,10 @@ export default function Pagination({ swiper, extendParams, on, emit }) {
       const realIndex = swiper.realIndex;
       const newSlideIndex = swiper.getSlideIndexByData(index);
       const currentSlideIndex = swiper.getSlideIndexByData(swiper.realIndex);
-      if (newSlideIndex > swiper.slides.length - swiper.loopedSlides) {
+      const loopFix = (dir) => {
         const indexBeforeLoopFix = swiper.activeIndex;
         swiper.loopFix({
-          direction: newSlideIndex > currentSlideIndex ? 'next' : 'prev',
+          direction: dir,
           activeSlideIndex: newSlideIndex,
           slideTo: false,
         });
@@ -90,6 +90,17 @@ export default function Pagination({ swiper, extendParams, on, emit }) {
         if (indexBeforeLoopFix === indexAfterFix) {
           swiper.slideToLoop(realIndex, 0, false, true);
         }
+      };
+      if (newSlideIndex > swiper.slides.length - swiper.loopedSlides) {
+        loopFix(newSlideIndex > currentSlideIndex ? 'next' : 'prev');
+      } else if (swiper.params.centeredSlides) {
+        const slidesPerView =
+          swiper.params.slidesPerView === 'auto'
+            ? swiper.slidesPerViewDynamic()
+            : Math.ceil(parseFloat(swiper.params.slidesPerView, 10));
+        if (newSlideIndex < Math.floor(slidesPerView / 2)) {
+          loopFix('prev');
+        }
       }
 
       swiper.slideToLoop(index);