Die automatische Wiedergabe von Swiper stoppt, wenn Sie die Tabs wechseln oder den Browser minimieren

Question

Ich habe mithilfe von CSS einen automatischen Wiedergabefortschritt für den Schieberegler erstellt. Wenn die Aktivitätsklasse zur Paginierung hinzugefügt wird, führe ich eine CSS-Animation aus, die so lange dauert wie die automatische Wiedergabeverzögerung des Schiebereglers. Alles funktioniert einwandfrei, wenn Sie nicht zwischen den Browser-Registerkarten wechseln oder den Browser minimieren. Sobald wir die Tabs wechseln, pausiert die automatische Wiedergabe des Schiebereglers und stoppt die Animation. Vielleicht weiß jemand, wie man es beeinflusst?

import Swiper, { Navigation, Pagination, Autoplay } from 'swiper';

const heroSwiper = new Swiper('.hero__swiper', {
  modules: [Navigation, Pagination, Autoplay],
  autoplay: {
    delay: 5000,
    waitForTransition: false,
    disableOnInteraction: false,
  },
  slidesPerView: 1,
  speed: 800,
  grabCursor: true,
  navigation: {
    prevEl: '.hero__navigation-button--prev',
    nextEl: '.hero__navigation-button--next',
  },
  pagination: {
    clickable: true,
    el: '.hero__swiper-pagination',
    renderBullet: (i, className) => {
      return `<button class="${className}">${(`0${i + 1}`).slice(-2)}</button>`;
    },
    type: 'bullets',
  },
});

&__swiper-pagination {
    position: absolute !important;
    top: auto !important;
    bottom: 12px !important;
    left: 50% !important;
    display: inline-flex !important;
    width: auto !important;
    transform: translateX(-50%) !important;
    pointer-events: none !important;

    .swiper-pagination-bullet {
      position: relative;
      display: inline-flex;
      width: auto !important;
      height: auto !important;
      margin: 0 24px 0 0 !important;
      color: #605647;
      font-size: 16px;
      line-height: 20px;
      background: none !important;
      border-radius: 0 !important;
      opacity: 1 !important;
      transition: 0.8s !important;
      pointer-events: all;

      &::before {
        position: absolute;
        top: 50%;
        left: 35px;
        width: 75px;
        height: 1px;
        background: rgba(#fff, 0.3);
        transform: translateY(-50%);
        visibility: hidden;
        opacity: 0;
        transition: 0.8s;
        content: "";
      }

      &::after {
        position: absolute;
        top: 50%;
        left: 35px;
        width: 0;
        height: 1px;
        background: rgba(#fff, 1);
        transform: translateY(-50%);
        visibility: hidden;
        opacity: 0;
        transition: 0.8s;
        content: "";
      }

      &.swiper-pagination-bullet-active {
        margin-right: 110px !important;
        color: #fff;

        &:last-child {
          margin-right: 0 !important;
        }

        &::before {
          visibility: visible;
          opacity: 1;
        }

        &::after {
          visibility: visible;
          opacity: 1;
          animation: pagination-progress 5s linear;
        }
      }

      &:last-child {
        margin: 0 !important;
      }
    }
  }


@keyframes pagination-progress {
  0% {
    width: 0;
  }

  100% {
    width: 75px;
  }
}

UPD Lösung des Problems:

document.addEventListener('visibilitychange', () => {
  if (document.visibilityState === 'visible') {
    /* Since swiper is still running in the background and only restarts 
    the animation when the user returns to the tab, it was decided to delete the class. */
    if (document.querySelector('.swiper-pagination-bullet-active')) {
      document.querySelector('.swiper-pagination-bullet-active').classList.remove('swiper-pagination-bullet-active');
    }

    // Without timeout the css animation does not start
    setTimeout(() => {
      document.querySelectorAll('.swiper-pagination-bullet')[heroSwiper.activeIndex].classList.add('swiper-pagination-bullet-active');
    }, 10);
  } else {
    document.querySelector('.swiper-pagination-bullet-active').classList.remove('swiper-pagination-bullet-active');
  }
});

Vielen Dank, Xena Lesenkova

Answer 1

在浏览器选项卡之间切换后，Swiper 滑块似乎会暂停自动播放。 当您返回时，它会再次重新开始显示当前幻灯片。 当带有滑块的选项卡变得可见时，尝试重新启动进度动画。

document.addEventListener("visibilitychange", () => {
    if (document.visibilityState === "visible") {
        // restart animate progress
    } else {
       // stop animate progress
    }
})