cczg-lottery-activity/uni_modules/zebra-swiper/modules/effect-flip/effect-flip.js

105 lines
3.1 KiB
JavaScript

import effectInit from '../../shared/effect-init.js';
import effectTarget from '../../shared/effect-target.js';
import effectVirtualTransitionEnd from '../../shared/effect-virtual-transition-end.js';
export default function EffectFlip({
swiper,
extendParams,
on
}) {
extendParams({
flipEffect: {
slideShadows: true,
limitRotation: true,
transformEl: null,
},
});
const setTranslate = () => {
const {
slides,
rtlTranslate: rtl
} = swiper;
const params = swiper.params.flipEffect;
for (let i = 0; i < slides.length; i += 1) {
const $slideEl = slides[i];
let progress = $slideEl.progress;
if (swiper.params.flipEffect.limitRotation) {
progress = Math.max(Math.min($slideEl.progress, 1), -1);
}
const offset = $slideEl.swiperSlideOffset;
const rotate = -180 * progress;
let rotateY = rotate;
let rotateX = 0;
let tx = swiper.params.cssMode ? -offset - swiper.translate : -offset;
let ty = 0;
if (!swiper.isHorizontal()) {
ty = tx;
tx = 0;
rotateX = -rotateY;
rotateY = 0;
} else if (rtl) {
rotateY = -rotateY;
}
$slideEl.css({
zIndex: -Math.abs(Math.round(progress)) + slides.length
})
// if (params.slideShadows) {
// // Set shadows
// let shadowBefore = swiper.isHorizontal()
// ? $slideEl.find('.swiper-slide-shadow-left')
// : $slideEl.find('.swiper-slide-shadow-top');
// let shadowAfter = swiper.isHorizontal()
// ? $slideEl.find('.swiper-slide-shadow-right')
// : $slideEl.find('.swiper-slide-shadow-bottom');
// if (shadowBefore.length === 0) {
// shadowBefore = createShadow(params, $slideEl, swiper.isHorizontal() ? 'left' : 'top');
// }
// if (shadowAfter.length === 0) {
// shadowAfter = createShadow(params, $slideEl, swiper.isHorizontal() ? 'right' : 'bottom');
// }
// if (shadowBefore.length) shadowBefore[0].style.opacity = Math.max(-progress, 0);
// if (shadowAfter.length) shadowAfter[0].style.opacity = Math.max(progress, 0);
// }
const transform = `translate3d(${tx}px, ${ty}px, 0px) rotateX(${rotateX}deg) rotateY(${rotateY}deg)`;
const $targetEl = effectTarget(params, $slideEl);
$targetEl.transform(transform);
if (swiper.params.willChange) {
$targetEl.willChange("transform");
}
slides[i].addClass('swiper-slide-flip')
}
};
const setTransition = (duration) => {
const {
transformEl
} = swiper.params.flipEffect;
const $transitionElements = transformEl ? swiper.slides.find(transformEl) : swiper.slides;
for (let i = 0; i < $transitionElements.length; i += 1) {
$transitionElements[i].transition(duration);
}
effectVirtualTransitionEnd({
swiper,
duration,
transformEl
});
};
effectInit({
effect: 'flip',
swiper,
on,
setTranslate,
setTransition,
perspective: () => true,
overwriteParams: () => ({
slidesPerView: 1,
slidesPerGroup: 1,
watchSlidesProgress: true,
spaceBetween: 0,
virtualTranslate: !swiper.params.cssMode,
}),
});
}