swiper/esm/components/core/translate/setTranslate.js

Most modern mobile touch slider and framework with hardware accelerated transitions

export default function setTranslate(translate, byController) {
  var swiper = this;
  var rtl = swiper.rtlTranslate,
      params = swiper.params,
      $wrapperEl = swiper.$wrapperEl,
      wrapperEl = swiper.wrapperEl,
      progress = swiper.progress;
  var x = 0;
  var y = 0;
  var z = 0;

  if (swiper.isHorizontal()) {
    x = rtl ? -translate : translate;
  } else {
    y = translate;
  }

  if (params.roundLengths) {
    x = Math.floor(x);
    y = Math.floor(y);
  }

  if (params.cssMode) {
    wrapperEl[swiper.isHorizontal() ? 'scrollLeft' : 'scrollTop'] = swiper.isHorizontal() ? -x : -y;
  } else if (!params.virtualTranslate) {
    $wrapperEl.transform("translate3d(" + x + "px, " + y + "px, " + z + "px)");
  }

  swiper.previousTranslate = swiper.translate;
  swiper.translate = swiper.isHorizontal() ? x : y; // Check if we need to update progress

  var newProgress;
  var translatesDiff = swiper.maxTranslate() - swiper.minTranslate();

  if (translatesDiff === 0) {
    newProgress = 0;
  } else {
    newProgress = (translate - swiper.minTranslate()) / translatesDiff;
  }

  if (newProgress !== progress) {
    swiper.updateProgress(translate);
  }

  swiper.emit('setTranslate', swiper.translate, byController);
}