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Direktori : /var/www/html/node_modules/swiper/core/events/
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Current File : /var/www/html/node_modules/swiper/core/events/onTouchMove.js

import { getDocument } from 'ssr-window';
import $ from '../../shared/dom.js';
import { now } from '../../shared/utils.js';
export default function onTouchMove(event) {
  const document = getDocument();
  const swiper = this;
  const data = swiper.touchEventsData;
  const {
    params,
    touches,
    rtlTranslate: rtl,
    enabled
  } = swiper;
  if (!enabled) return;
  let e = event;
  if (e.originalEvent) e = e.originalEvent;

  if (!data.isTouched) {
    if (data.startMoving && data.isScrolling) {
      swiper.emit('touchMoveOpposite', e);
    }

    return;
  }

  if (data.isTouchEvent && e.type !== 'touchmove') return;
  const targetTouch = e.type === 'touchmove' && e.targetTouches && (e.targetTouches[0] || e.changedTouches[0]);
  const pageX = e.type === 'touchmove' ? targetTouch.pageX : e.pageX;
  const pageY = e.type === 'touchmove' ? targetTouch.pageY : e.pageY;

  if (e.preventedByNestedSwiper) {
    touches.startX = pageX;
    touches.startY = pageY;
    return;
  }

  if (!swiper.allowTouchMove) {
    if (!$(e.target).is(data.focusableElements)) {
      swiper.allowClick = false;
    }

    if (data.isTouched) {
      Object.assign(touches, {
        startX: pageX,
        startY: pageY,
        currentX: pageX,
        currentY: pageY
      });
      data.touchStartTime = now();
    }

    return;
  }

  if (data.isTouchEvent && params.touchReleaseOnEdges && !params.loop) {
    if (swiper.isVertical()) {
      // Vertical
      if (pageY < touches.startY && swiper.translate <= swiper.maxTranslate() || pageY > touches.startY && swiper.translate >= swiper.minTranslate()) {
        data.isTouched = false;
        data.isMoved = false;
        return;
      }
    } else if (pageX < touches.startX && swiper.translate <= swiper.maxTranslate() || pageX > touches.startX && swiper.translate >= swiper.minTranslate()) {
      return;
    }
  }

  if (data.isTouchEvent && document.activeElement) {
    if (e.target === document.activeElement && $(e.target).is(data.focusableElements)) {
      data.isMoved = true;
      swiper.allowClick = false;
      return;
    }
  }

  if (data.allowTouchCallbacks) {
    swiper.emit('touchMove', e);
  }

  if (e.targetTouches && e.targetTouches.length > 1) return;
  touches.currentX = pageX;
  touches.currentY = pageY;
  const diffX = touches.currentX - touches.startX;
  const diffY = touches.currentY - touches.startY;
  if (swiper.params.threshold && Math.sqrt(diffX ** 2 + diffY ** 2) < swiper.params.threshold) return;

  if (typeof data.isScrolling === 'undefined') {
    let touchAngle;

    if (swiper.isHorizontal() && touches.currentY === touches.startY || swiper.isVertical() && touches.currentX === touches.startX) {
      data.isScrolling = false;
    } else {
      // eslint-disable-next-line
      if (diffX * diffX + diffY * diffY >= 25) {
        touchAngle = Math.atan2(Math.abs(diffY), Math.abs(diffX)) * 180 / Math.PI;
        data.isScrolling = swiper.isHorizontal() ? touchAngle > params.touchAngle : 90 - touchAngle > params.touchAngle;
      }
    }
  }

  if (data.isScrolling) {
    swiper.emit('touchMoveOpposite', e);
  }

  if (typeof data.startMoving === 'undefined') {
    if (touches.currentX !== touches.startX || touches.currentY !== touches.startY) {
      data.startMoving = true;
    }
  }

  if (data.isScrolling) {
    data.isTouched = false;
    return;
  }

  if (!data.startMoving) {
    return;
  }

  swiper.allowClick = false;

  if (!params.cssMode && e.cancelable) {
    e.preventDefault();
  }

  if (params.touchMoveStopPropagation && !params.nested) {
    e.stopPropagation();
  }

  if (!data.isMoved) {
    if (params.loop && !params.cssMode) {
      swiper.loopFix();
    }

    data.startTranslate = swiper.getTranslate();
    swiper.setTransition(0);

    if (swiper.animating) {
      swiper.$wrapperEl.trigger('webkitTransitionEnd transitionend');
    }

    data.allowMomentumBounce = false; // Grab Cursor

    if (params.grabCursor && (swiper.allowSlideNext === true || swiper.allowSlidePrev === true)) {
      swiper.setGrabCursor(true);
    }

    swiper.emit('sliderFirstMove', e);
  }

  swiper.emit('sliderMove', e);
  data.isMoved = true;
  let diff = swiper.isHorizontal() ? diffX : diffY;
  touches.diff = diff;
  diff *= params.touchRatio;
  if (rtl) diff = -diff;
  swiper.swipeDirection = diff > 0 ? 'prev' : 'next';
  data.currentTranslate = diff + data.startTranslate;
  let disableParentSwiper = true;
  let resistanceRatio = params.resistanceRatio;

  if (params.touchReleaseOnEdges) {
    resistanceRatio = 0;
  }

  if (diff > 0 && data.currentTranslate > swiper.minTranslate()) {
    disableParentSwiper = false;
    if (params.resistance) data.currentTranslate = swiper.minTranslate() - 1 + (-swiper.minTranslate() + data.startTranslate + diff) ** resistanceRatio;
  } else if (diff < 0 && data.currentTranslate < swiper.maxTranslate()) {
    disableParentSwiper = false;
    if (params.resistance) data.currentTranslate = swiper.maxTranslate() + 1 - (swiper.maxTranslate() - data.startTranslate - diff) ** resistanceRatio;
  }

  if (disableParentSwiper) {
    e.preventedByNestedSwiper = true;
  } // Directions locks


  if (!swiper.allowSlideNext && swiper.swipeDirection === 'next' && data.currentTranslate < data.startTranslate) {
    data.currentTranslate = data.startTranslate;
  }

  if (!swiper.allowSlidePrev && swiper.swipeDirection === 'prev' && data.currentTranslate > data.startTranslate) {
    data.currentTranslate = data.startTranslate;
  }

  if (!swiper.allowSlidePrev && !swiper.allowSlideNext) {
    data.currentTranslate = data.startTranslate;
  } // Threshold


  if (params.threshold > 0) {
    if (Math.abs(diff) > params.threshold || data.allowThresholdMove) {
      if (!data.allowThresholdMove) {
        data.allowThresholdMove = true;
        touches.startX = touches.currentX;
        touches.startY = touches.currentY;
        data.currentTranslate = data.startTranslate;
        touches.diff = swiper.isHorizontal() ? touches.currentX - touches.startX : touches.currentY - touches.startY;
        return;
      }
    } else {
      data.currentTranslate = data.startTranslate;
      return;
    }
  }

  if (!params.followFinger || params.cssMode) return; // Update active index in free mode

  if (params.freeMode && params.freeMode.enabled && swiper.freeMode || params.watchSlidesProgress) {
    swiper.updateActiveIndex();
    swiper.updateSlidesClasses();
  }

  if (swiper.params.freeMode && params.freeMode.enabled && swiper.freeMode) {
    swiper.freeMode.onTouchMove();
  } // Update progress


  swiper.updateProgress(data.currentTranslate); // Update translate

  swiper.setTranslate(data.currentTranslate);
}

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