import {
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now
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} from '../../shared/utils.js';
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export default function onTouchMove(event) {
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const swiper = this;
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const data = swiper.touchEventsData;
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const {
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params,
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touches,
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rtlTranslate: rtl,
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enabled
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} = swiper;
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if (!enabled) return;
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let e = event;
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if (e.originalEvent) e = e.originalEvent;
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if (!data.isTouched) {
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if (data.startMoving && data.isScrolling) {
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swiper.emit('touchMoveOpposite', e);
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}
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return;
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}
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if (data.isTouchEvent && e.type !== 'touchmove' && e.type !== 'touchMove' && e.type !== 'onTouchmove') return;
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const targetTouch = (e.type === 'touchmove' || e.type === 'touchMove' || e.type === 'onTouchmove') && e.touches && (
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e.touches[0] || e
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.changedTouches[0]);
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const pageX = (e.type === 'touchmove' || e.type === 'touchMove' || e.type === 'onTouchmove') ? targetTouch.pageX : e
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.pageX;
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const pageY = (e.type === 'touchmove' || e.type === 'touchMove' || e.type === 'onTouchmove') ? targetTouch.pageY : e
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.pageY;
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if (e.preventedByNestedSwiper) {
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touches.startX = pageX;
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touches.startY = pageY;
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return;
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}
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if (!swiper.allowTouchMove) {
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swiper.allowClick = false;
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if (data.isTouched) {
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Object.assign(touches, {
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startX: pageX,
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startY: pageY,
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currentX: pageX,
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currentY: pageY
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});
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data.touchStartTime = now();
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}
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return;
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}
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if (data.isTouchEvent && params.touchReleaseOnEdges && !params.loop) {
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if (swiper.isVertical()) {
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if (pageY < touches.startY && swiper.translate <= swiper.maxTranslate() || pageY > touches.startY && swiper
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.translate >= swiper.minTranslate()) {
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data.isTouched = false;
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data.isMoved = false;
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return;
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}
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} else if (pageX < touches.startX && swiper.translate <= swiper.maxTranslate() || pageX > touches.startX &&
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swiper.translate >= swiper.minTranslate()) {
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return;
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}
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}
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// if (data.isTouchEvent && document.activeElement) {
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// if (e.target === document.activeElement && $(e.target).is(data.focusableElements)) {
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// data.isMoved = true;
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// swiper.allowClick = false;
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// return;
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// }
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// }
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if (data.allowTouchCallbacks) {
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swiper.emit('touch-move', e);
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}
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if (e.touches && e.touches.length > 1) return;
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touches.currentX = pageX;
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touches.currentY = pageY;
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const diffX = touches.currentX - touches.startX;
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const diffY = touches.currentY - touches.startY;
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if (swiper.params.threshold && Math.sqrt(diffX ** 2 + diffY ** 2) < swiper.params.threshold) return;
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if (typeof data.isScrolling === 'undefined') {
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let touchAngle;
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if (swiper.isHorizontal() && touches.currentY === touches.startY || swiper.isVertical() && touches.currentX ===
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touches.startX) {
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data.isScrolling = false;
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} else {
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if (diffX * diffX + diffY * diffY >= 25) {
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touchAngle = Math.atan2(Math.abs(diffY), Math.abs(diffX)) * 180 / Math.PI;
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data.isScrolling = swiper.isHorizontal() ? touchAngle > params.touchAngle : 90 - touchAngle > params
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.touchAngle;
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}
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}
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}
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if (data.isScrolling) {
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swiper.emit('touchMoveOpposite', e);
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}
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if (typeof data.startMoving === 'undefined') {
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if (touches.currentX !== touches.startX || touches.currentY !== touches.startY) {
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data.startMoving = true;
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}
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}
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if (data.isScrolling) {
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data.isTouched = false;
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return;
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}
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if (!data.startMoving) {
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return;
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}
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swiper.allowClick = false;
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if (!params.cssMode && e.cancelable) {
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e.preventDefault();
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}
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if (params.touchMoveStopPropagation && !params.nested) {
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e.stopPropagation();
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}
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if (!data.isMoved) {
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if (params.loop && !params.cssMode) {
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swiper.loopFix();
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}
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data.startTranslate = swiper.getTranslate();
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swiper.setTransition(0);
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if (swiper.animating) {
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swiper.$wrapperEl.emit('transitionend', [swiper]);
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}
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data.allowMomentumBounce = false;
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if (params.grabCursor && (swiper.allowSlideNext === true || swiper.allowSlidePrev === true)) {
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swiper.setGrabCursor(true);
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}
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swiper.emit('sliderFirstMove', e);
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}
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swiper.emit('sliderMove', e);
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data.isMoved = true;
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let diff = swiper.isHorizontal() ? diffX : diffY;
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touches.diff = diff;
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diff *= params.touchRatio;
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if (rtl) diff = -diff;
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swiper.swipeDirection = diff > 0 ? 'prev' : 'next';
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data.currentTranslate = diff + data.startTranslate;
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let disableParentSwiper = true;
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let resistanceRatio = params.resistanceRatio;
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if (params.touchReleaseOnEdges) {
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resistanceRatio = 0;
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}
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if (diff > 0 && data.currentTranslate > swiper.minTranslate()) {
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disableParentSwiper = false;
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if (params.resistance) data.currentTranslate = swiper.minTranslate() - 1 + (-swiper.minTranslate() + data
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.startTranslate + diff) ** resistanceRatio;
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} else if (diff < 0 && data.currentTranslate < swiper.maxTranslate()) {
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disableParentSwiper = false;
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if (params.resistance) data.currentTranslate = swiper.maxTranslate() + 1 - (swiper.maxTranslate() - data
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.startTranslate - diff) ** resistanceRatio;
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}
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if (disableParentSwiper) {
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e.preventedByNestedSwiper = true;
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}
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if (!swiper.allowSlideNext && swiper.swipeDirection === 'next' && data.currentTranslate < data.startTranslate) {
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data.currentTranslate = data.startTranslate;
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}
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if (!swiper.allowSlidePrev && swiper.swipeDirection === 'prev' && data.currentTranslate > data.startTranslate) {
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data.currentTranslate = data.startTranslate;
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}
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if (!swiper.allowSlidePrev && !swiper.allowSlideNext) {
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data.currentTranslate = data.startTranslate;
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}
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if (params.threshold > 0) {
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if (Math.abs(diff) > params.threshold || data.allowThresholdMove) {
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if (!data.allowThresholdMove) {
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data.allowThresholdMove = true;
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touches.startX = touches.currentX;
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touches.startY = touches.currentY;
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data.currentTranslate = data.startTranslate;
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touches.diff = swiper.isHorizontal() ? touches.currentX - touches.startX : touches.currentY - touches
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.startY;
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return;
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}
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} else {
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data.currentTranslate = data.startTranslate;
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return;
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}
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}
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if (!params.followFinger || params.cssMode) return;
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if (params.freeMode && params.freeMode.enabled && swiper.freeMode || params.watchSlidesProgress) {
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swiper.updateActiveIndex();
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swiper.updateSlidesClasses();
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}
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if (swiper.params.freeMode && params.freeMode.enabled && swiper.freeMode) {
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swiper.freeMode.onTouchMove();
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}
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swiper.updateProgress(data.currentTranslate);
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swiper.setTranslate(data.currentTranslate);
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}
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