122 lines
3.9 KiB
JavaScript
122 lines
3.9 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var vue = require('vue');
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var constants = require('./constants.js');
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var types = require('../../../utils/types.js');
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const useCarouselItem = (props) => {
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const carouselContext = vue.inject(constants.carouselContextKey);
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const instance = vue.getCurrentInstance();
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const carouselItemRef = vue.ref();
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const hover = vue.ref(false);
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const translate = vue.ref(0);
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const scale = vue.ref(1);
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const active = vue.ref(false);
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const ready = vue.ref(false);
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const inStage = vue.ref(false);
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const animating = vue.ref(false);
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const { isCardType, isVertical, cardScale } = carouselContext;
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function processIndex(index, activeIndex, length) {
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const lastItemIndex = length - 1;
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const prevItemIndex = activeIndex - 1;
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const nextItemIndex = activeIndex + 1;
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const halfItemIndex = length / 2;
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if (activeIndex === 0 && index === lastItemIndex) {
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return -1;
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} else if (activeIndex === lastItemIndex && index === 0) {
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return length;
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} else if (index < prevItemIndex && activeIndex - index >= halfItemIndex) {
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return length + 1;
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} else if (index > nextItemIndex && index - activeIndex >= halfItemIndex) {
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return -2;
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}
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return index;
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}
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function calcCardTranslate(index, activeIndex) {
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var _a, _b;
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const parentWidth = vue.unref(isVertical) ? ((_a = carouselContext.root.value) == null ? void 0 : _a.offsetHeight) || 0 : ((_b = carouselContext.root.value) == null ? void 0 : _b.offsetWidth) || 0;
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if (inStage.value) {
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return parentWidth * ((2 - cardScale) * (index - activeIndex) + 1) / 4;
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} else if (index < activeIndex) {
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return -(1 + cardScale) * parentWidth / 4;
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} else {
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return (3 + cardScale) * parentWidth / 4;
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}
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}
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function calcTranslate(index, activeIndex, isVertical2) {
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const rootEl = carouselContext.root.value;
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if (!rootEl)
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return 0;
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const distance = (isVertical2 ? rootEl.offsetHeight : rootEl.offsetWidth) || 0;
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return distance * (index - activeIndex);
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}
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const translateItem = (index, activeIndex, oldIndex) => {
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var _a;
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const _isCardType = vue.unref(isCardType);
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const carouselItemLength = (_a = carouselContext.items.value.length) != null ? _a : Number.NaN;
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const isActive = index === activeIndex;
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if (!_isCardType && !types.isUndefined(oldIndex)) {
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animating.value = isActive || index === oldIndex;
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}
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if (!isActive && carouselItemLength > 2 && carouselContext.loop) {
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index = processIndex(index, activeIndex, carouselItemLength);
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}
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const _isVertical = vue.unref(isVertical);
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active.value = isActive;
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if (_isCardType) {
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inStage.value = Math.round(Math.abs(index - activeIndex)) <= 1;
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translate.value = calcCardTranslate(index, activeIndex);
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scale.value = vue.unref(active) ? 1 : cardScale;
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} else {
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translate.value = calcTranslate(index, activeIndex, _isVertical);
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}
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ready.value = true;
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if (isActive && carouselItemRef.value) {
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carouselContext.setContainerHeight(carouselItemRef.value.offsetHeight);
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}
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};
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function handleItemClick() {
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if (carouselContext && vue.unref(isCardType)) {
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const index = carouselContext.items.value.findIndex(({ uid }) => uid === instance.uid);
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carouselContext.setActiveItem(index);
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}
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}
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const carouselItemContext = {
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props,
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states: vue.reactive({
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hover,
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translate,
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scale,
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active,
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ready,
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inStage,
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animating
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}),
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uid: instance.uid,
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getVnode: () => instance.vnode,
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translateItem
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};
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carouselContext.addItem(carouselItemContext);
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vue.onBeforeUnmount(() => {
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carouselContext.removeItem(carouselItemContext);
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});
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return {
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carouselItemRef,
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active,
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animating,
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hover,
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inStage,
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isVertical,
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translate,
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isCardType,
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scale,
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ready,
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handleItemClick
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};
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};
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exports.useCarouselItem = useCarouselItem;
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//# sourceMappingURL=use-carousel-item.js.map
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