server/aspnetapp/wwwroot/lib/swiper/src/components/effect-fade/effect-fade.js

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import Utils from '../../utils/utils';

const Fade = {
  setTranslate() {
    const swiper = this;
    const { slides } = swiper;
    for (let i = 0; i < slides.length; i += 1) {
      const $slideEl = swiper.slides.eq(i);
      const offset = $slideEl[0].swiperSlideOffset;
      let tx = -offset;
      if (!swiper.params.virtualTranslate) tx -= swiper.translate;
      let ty = 0;
      if (!swiper.isHorizontal()) {
        ty = tx;
        tx = 0;
      }
      const slideOpacity = swiper.params.fadeEffect.crossFade
        ? Math.max(1 - Math.abs($slideEl[0].progress), 0)
        : 1 + Math.min(Math.max($slideEl[0].progress, -1), 0);
      $slideEl
        .css({
          opacity: slideOpacity,
        })
        .transform(`translate3d(${tx}px, ${ty}px, 0px)`);
    }
  },
  setTransition(duration) {
    const swiper = this;
    const { slides, $wrapperEl } = swiper;
    slides.transition(duration);
    if (swiper.params.virtualTranslate && duration !== 0) {
      let eventTriggered = false;
      slides.transitionEnd(() => {
        if (eventTriggered) return;
        if (!swiper || swiper.destroyed) return;
        eventTriggered = true;
        swiper.animating = false;
        const triggerEvents = ['webkitTransitionEnd', 'transitionend'];
        for (let i = 0; i < triggerEvents.length; i += 1) {
          $wrapperEl.trigger(triggerEvents[i]);
        }
      });
    }
  },
};

export default {
  name: 'effect-fade',
  params: {
    fadeEffect: {
      crossFade: false,
    },
  },
  create() {
    const swiper = this;
    Utils.extend(swiper, {
      fadeEffect: {
        setTranslate: Fade.setTranslate.bind(swiper),
        setTransition: Fade.setTransition.bind(swiper),
      },