server/aspnetapp/wwwroot/lib/swiper/src/components/keyboard/keyboard.js

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import { window, document } from 'ssr-window';
import $ from '../../utils/dom';
import Utils from '../../utils/utils';

const Keyboard = {
  handle(event) {
    const swiper = this;
    const { rtlTranslate: rtl } = swiper;
    let e = event;
    if (e.originalEvent) e = e.originalEvent; // jquery fix
    const kc = e.keyCode || e.charCode;
    // Directions locks
    if (!swiper.allowSlideNext && ((swiper.isHorizontal() && kc === 39) || (swiper.isVertical() && kc === 40) || kc === 34)) {
      return false;
    }
    if (!swiper.allowSlidePrev && ((swiper.isHorizontal() && kc === 37) || (swiper.isVertical() && kc === 38) || kc === 33)) {
      return false;
    }
    if (e.shiftKey || e.altKey || e.ctrlKey || e.metaKey) {
      return undefined;
    }
    if (document.activeElement && document.activeElement.nodeName && (document.activeElement.nodeName.toLowerCase() === 'input' || document.activeElement.nodeName.toLowerCase() === 'textarea')) {
      return undefined;
    }
    if (swiper.params.keyboard.onlyInViewport && (kc === 33 || kc === 34 || kc === 37 || kc === 39 || kc === 38 || kc === 40)) {
      let inView = false;
      // Check that swiper should be inside of visible area of window
      if (swiper.$el.parents(`.${swiper.params.slideClass}`).length > 0 && swiper.$el.parents(`.${swiper.params.slideActiveClass}`).length === 0) {
        return undefined;
      }
      const windowWidth = window.innerWidth;
      const windowHeight = window.innerHeight;
      const swiperOffset = swiper.$el.offset();
      if (rtl) swiperOffset.left -= swiper.$el[0].scrollLeft;
      const swiperCoord = [
        [swiperOffset.left, swiperOffset.top],
        [swiperOffset.left + swiper.width, swiperOffset.top],
        [swiperOffset.left, swiperOffset.top + swiper.height],
        [swiperOffset.left + swiper.width, swiperOffset.top + swiper.height],
      ];
      for (let i = 0; i < swiperCoord.length; i += 1) {
        const point = swiperCoord[i];
        if (
          point[0] >= 0 && point[0] <= windowWidth
          && point[1] >= 0 && point[1] <= windowHeight
        ) {
          inView = true;
        }
      }
      if (!inView) return undefined;
    }
    if (swiper.isHorizontal()) {
      if (kc === 33 || kc === 34 || kc === 37 || kc === 39) {
        if (e.preventDefault) e.preventDefault();
        else e.returnValue = false;
      }
      if (((kc === 34 || kc === 39) && !rtl) || ((kc === 33 || kc === 37) && rtl)) swiper.slideNext();
      if (((kc === 33 || kc === 37) && !rtl) || ((kc === 34 || kc === 39) && rtl)) swiper.slidePrev();
    } else {
      if (kc === 33 || kc === 34 || kc === 38 || kc === 40) {