131 lines
3.6 KiB
JavaScript
131 lines
3.6 KiB
JavaScript
import effectInit from '../../shared/effect-init.js';
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import effectTarget from '../../shared/effect-target.js';
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import effectVirtualTransitionEnd from '../../shared/effect-virtual-transition-end.js';
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export default function EffectCards({
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swiper,
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extendParams,
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on
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}) {
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extendParams({
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cardsEffect: {
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slideShadows: true,
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transformEl: null,
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rotate: true,
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perSlideRotate: 2,
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perSlideOffset: 8,
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},
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});
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const setTranslate = () => {
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const {
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slides,
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activeIndex
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} = swiper;
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const params = swiper.params.cardsEffect;
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const {
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startTranslate,
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isTouched
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} = swiper.touchEventsData;
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const currentTranslate = swiper.translate;
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for (let i = 0; i < slides.length; i += 1) {
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const $slideEl = slides[i];
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const slideProgress = $slideEl.progress;
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const progress = Math.min(Math.max(slideProgress, -4), 4);
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let offset = $slideEl.swiperSlideOffset;
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if (swiper.params.centeredSlides && !swiper.params.cssMode) {
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swiper.$wrapperEl.transform(`translateX(${swiper.minTranslate()}px)`);
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}
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if (swiper.params.centeredSlides && swiper.params.cssMode) {
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offset -= slides.swiperSlideOffset;
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}
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let tX = swiper.params.cssMode ? -offset - swiper.translate : -offset;
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let tY = 0;
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const tZ = -100 * Math.abs(progress);
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let scale = 1;
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let rotate = -params.perSlideRotate * progress;
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let tXAdd = params.perSlideOffset - Math.abs(progress) * 0.75;
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const isSwipeToNext =
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(i === activeIndex || i === activeIndex - 1) &&
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progress > 0 &&
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progress < 1 &&
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(isTouched || swiper.params.cssMode) &&
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currentTranslate < startTranslate;
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const isSwipeToPrev =
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(i === activeIndex || i === activeIndex + 1) &&
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progress < 0 &&
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progress > -1 &&
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(isTouched || swiper.params.cssMode) &&
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currentTranslate > startTranslate;
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if (isSwipeToNext || isSwipeToPrev) {
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const subProgress = (1 - Math.abs((Math.abs(progress) - 0.5) / 0.5)) ** 0.5;
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rotate += -28 * progress * subProgress;
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scale += -0.5 * subProgress;
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tXAdd += 96 * subProgress;
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tY = `${-25 * subProgress * Math.abs(progress)}%`;
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}
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if (progress < 0) {
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// next
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tX = `calc(${tX}px + (${tXAdd * Math.abs(progress)}%))`;
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} else if (progress > 0) {
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// prev
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tX = `calc(${tX}px + (-${tXAdd * Math.abs(progress)}%))`;
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} else {
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tX = `${tX}px`;
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}
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if (!swiper.isHorizontal()) {
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const prevY = tY;
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tY = tX;
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tX = prevY;
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}
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const scaleString =
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progress < 0 ? `${1 + (1 - scale) * progress}` : `${1 - (1 - scale) * progress}`;
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const transform =
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`translate3d(${tX}, ${tY}, ${tZ}px) rotateZ(${params.rotate ? rotate : 0}deg) scale(${scaleString})`;
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$slideEl.css({
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zIndex: -Math.abs(Math.round(slideProgress)) + slides.length
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})
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const $targetEl = effectTarget(params, $slideEl);
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$targetEl.transform(transform);
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if (swiper.params.willChange) {
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$targetEl.willChange("transform");
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}
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slides[i].addClass('swiper-slide-cards')
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}
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};
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const setTransition = (duration) => {
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const {
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transformEl
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} = swiper.params.cardsEffect;
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const $transitionElements = transformEl ? swiper.slides.find(transformEl) : swiper.slides;
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for (let i = 0; i < $transitionElements.length; i += 1) {
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$transitionElements[i].transition(duration);
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}
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effectVirtualTransitionEnd({
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swiper,
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duration,
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transformEl
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});
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};
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effectInit({
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effect: 'cards',
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swiper,
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on,
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setTranslate,
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setTransition,
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perspective: () => true,
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overwriteParams: () => ({
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watchSlidesProgress: true,
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virtualTranslate: !swiper.params.cssMode,
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}),
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});
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}
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