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uni_modules/zebra-swiper/libs/events/onTouchStart.js

@@ -0,0 +1,85 @@
+import {
+	now
+} from '../../shared/utils.js';
+
+export default function onTouchStart(event) {
+	const swiper = this;
+	const data = swiper.touchEventsData;
+	const {
+		params,
+		touches,
+		enabled
+	} = swiper;
+	if (!enabled) return;
+
+	if (swiper.animating && params.preventInteractionOnTransition) {
+		return;
+	}
+
+	if (!swiper.animating && params.cssMode && params.loop) {
+		swiper.loopFix();
+	}
+
+	let e = event;
+	if (e.originalEvent) e = e.originalEvent;
+
+	data.isTouchEvent = e.type === 'touchstart' || e.type === 'touchStart' || e.type === 'onTouchstart';
+	if (!data.isTouchEvent && 'which' in e && e.which === 3) return;
+	if (!data.isTouchEvent && 'button' in e && e.button > 0) return;
+	if (data.isTouched && data.isMoved) return; // change target el for shadow root component
+
+	const swipingClassHasValue = !!params.noSwipingClass && params.noSwipingClass !== '';
+
+
+	const noSwipingSelector = params.noSwipingSelector ? params.noSwipingSelector : `.${params.noSwipingClass}`;
+	const isTargetShadow = !!(e.target && e.target
+		.shadowRoot
+	);
+
+	if (params.noSwiping) {
+		swiper.allowClick = true;
+		return;
+	}
+
+	if (params.swipeHandler) {
+		if (!$targetEl.closest(params.swipeHandler)[0]) return;
+	}
+
+	touches.currentX = (e.type === 'touchstart' || e.type === 'touchStart' || e.type === 'onTouchstart') ? e.touches[0]
+		.pageX : e.pageX;
+	touches.currentY = (e.type === 'touchstart' || e.type === 'touchStart' || e.type === 'onTouchstart') ? e.touches[0]
+		.pageY : e.pageY;
+	const startX = touches.currentX;
+	const startY = touches
+		.currentY;
+
+	const edgeSwipeDetection = params.edgeSwipeDetection || params.iOSEdgeSwipeDetection;
+	const edgeSwipeThreshold = params.edgeSwipeThreshold || params.iOSEdgeSwipeThreshold;
+
+	Object.assign(data, {
+		isTouched: true,
+		isMoved: false,
+		allowTouchCallbacks: true,
+		isScrolling: undefined,
+		startMoving: undefined
+	});
+	touches.startX = startX;
+	touches.startY = startY;
+	data.touchStartTime = now();
+	swiper.allowClick = true;
+	swiper.updateSize();
+	swiper.swipeDirection = undefined;
+	if (params.threshold > 0) data.allowThresholdMove = false;
+	// if (e.type !== 'touchstart' && e.type !== 'touchStart') {
+	// let preventDefault = true;
+	// if ($targetEl.is(data.focusableElements)) preventDefault = false;
+
+	// const shouldPreventDefault = preventDefault && swiper.allowTouchMove && params.touchStartPreventDefault;
+
+	// if ((params.touchStartForcePreventDefault || shouldPreventDefault) && !$targetEl[0].isContentEditable) {
+	// e.preventDefault();
+	// }
+	// }
+
+	swiper.emit('touch-start', e);
+}