1afterTransition(callback) {
2    const handler = () => {
3        callback();
4        this.$refs.carouselInner.removeEventListener('transitionend', handler);
5        this.isTransitioning = false;
6    };
7    this.$refs.carouselInner.addEventListener('transitionend', handler);
8},
9
10withoutTransition(fn) {
11    this.disableTransition();
12    fn();
13    this.$refs.carouselInner.offsetHeight; // Force reflow
14    setTimeout(() => this.enableTransition(), 50);
15},
16
17next() {
18    if (this.isTransitioning) return;
19    this.isTransitioning = true;
20    this.currentSlide++;
21    const maxIndex = this.originalSlides.length * 2;
22    this.afterTransition(() => {
23        if (this.currentSlide >= maxIndex) {
24            this.withoutTransition(() => {
25                this.currentSlide -= this.originalSlides.length;
26            });
27        }
28    });
29},
30
31prev() {
32    if (this.isTransitioning) return;
33    this.isTransitioning = true;
34    this.currentSlide--;
35    this.afterTransition(() => {
36        if (this.currentSlide < this.originalSlides.length) {
37            this.withoutTransition(() => {
38                this.currentSlide += this.originalSlides.length;
39            });
40        }
41    });
42},