600 lines
16 KiB
Vue
Executable File
600 lines
16 KiB
Vue
Executable File
<template>
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<div :id="id" :class="['p-carousel p-component', {'p-carousel-vertical': isVertical(), 'p-carousel-horizontal': !isVertical()}]">
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<div class="p-carousel-header" v-if="$slots.header">
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<slot name="header"></slot>
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</div>
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<div :class="contentClasses">
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<div :class="containerClasses">
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<button :class="['p-carousel-prev p-link', {'p-disabled': backwardIsDisabled}]" :disabled="backwardIsDisabled" @click="navBackward" type="button" v-ripple>
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<span :class="['p-carousel-prev-icon pi', {'pi-chevron-left': !isVertical(),'pi-chevron-up': isVertical()}]"></span>
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</button>
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<div class="p-carousel-items-content" :style="[{'height': isVertical() ? verticalViewPortHeight : 'auto'}]" @touchend="onTouchEnd" @touchstart="onTouchStart" @touchmove="onTouchMove">
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<div ref="itemsContainer" class="p-carousel-items-container" @transitionend="onTransitionEnd">
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<template v-if="isCircular()">
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<div v-for="(item, index) of value.slice(-1 * d_numVisible)" :key="index + '_scloned'" :class="['p-carousel-item p-carousel-item-cloned',
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{'p-carousel-item-active': (totalShiftedItems * -1) === (value.length + d_numVisible),
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'p-carousel-item-start': 0 === index,
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'p-carousel-item-end': value.slice(-1 * d_numVisible).length - 1 === index}]">
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<slot name="item" :data="item" :index="index"></slot>
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</div>
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</template>
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<div v-for="(item, index) of value" :key="index" :class="['p-carousel-item',
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{'p-carousel-item-active': firstIndex() <= index && lastIndex() >= index,
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'p-carousel-item-start': firstIndex() === index,
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'p-carousel-item-end': lastIndex() === index}]">
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<slot name="item" :data="item" :index="index"></slot>
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</div>
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<template v-if="isCircular()">
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<div v-for="(item, index) of value.slice(0, d_numVisible)" :key="index + '_fcloned'" :class="['p-carousel-item p-carousel-item-cloned',
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{'p-carousel-item-active': totalShiftedItems === 0,
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'p-carousel-item-start': 0 === index,
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'p-carousel-item-end': value.slice(0, d_numVisible).length - 1 === index}]">
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<slot name="item" :data="item" :index="index"></slot>
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</div>
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</template>
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</div>
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</div>
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<button :class="['p-carousel-next p-link', {'p-disabled': forwardIsDisabled}]" :disabled="forwardIsDisabled" @click="navForward" type="button" v-ripple>
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<span :class="['p-carousel-prev-icon pi', {'pi-chevron-right': !isVertical(),'pi-chevron-down': isVertical()}]"></span>
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</button>
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</div>
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<ul v-if="totalIndicators >= 0" :class="indicatorsContentClasses">
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<li v-for="(indicator, i) of totalIndicators" :key="'p-carousel-indicator-' + i.toString()" :class="['p-carousel-indicator', {'p-highlight': d_page === i}]">
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<button class="p-link" @click="onIndicatorClick($event, i)" type="button" />
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</li>
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</ul>
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</div>
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<div class="p-carousel-footer" v-if="$slots.footer">
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<slot name="footer"></slot>
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</div>
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</div>
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</template>
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<script>
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import {UniqueComponentId} from 'primevue/utils';
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import {DomHandler} from 'primevue/utils';
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import Ripple from 'primevue/ripple';
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export default {
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name: 'Carousel',
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emits: ['update:page'],
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props: {
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value: null,
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page: {
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type: Number,
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default: 0
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},
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numVisible: {
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type: Number,
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default: 1
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},
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numScroll: {
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type: Number,
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default: 1
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},
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responsiveOptions: Array,
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orientation: {
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type: String,
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default: 'horizontal'
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},
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verticalViewPortHeight: {
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type: String,
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default: '300px'
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},
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contentClass: String,
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containerClass: String,
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indicatorsContentClass: String,
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circular: {
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type: Boolean,
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default: false
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},
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autoplayInterval: {
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type: Number,
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default:0
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}
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},
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data() {
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return {
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id : UniqueComponentId(),
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remainingItems: 0,
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d_numVisible: this.numVisible,
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d_numScroll: this.numScroll,
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d_oldNumScroll: 0,
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d_oldNumVisible: 0,
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d_oldValue: null,
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d_page: this.page,
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totalShiftedItems: this.page * this.numScroll * -1,
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allowAutoplay : !!this.autoplayInterval,
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d_circular : this.circular || this.allowAutoplay,
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swipeThreshold: 20
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}
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},
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isRemainingItemsAdded: false,
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watch: {
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page(newValue) {
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this.d_page = newValue;
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},
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circular(newValue) {
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this.d_circular = newValue;
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},
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numVisible(newValue, oldValue) {
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this.d_numVisible = newValue;
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this.d_oldNumVisible = oldValue;
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},
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numScroll(newValue, oldValue) {
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this.d_oldNumScroll = oldValue;
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this.d_numScroll = newValue;
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},
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value(oldValue) {
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this.d_oldValue =oldValue;
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}
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},
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methods: {
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step(dir, page) {
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let totalShiftedItems = this.totalShiftedItems;
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const isCircular = this.isCircular();
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if (page != null) {
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totalShiftedItems = (this.d_numScroll * page) * -1;
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if (isCircular) {
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totalShiftedItems -= this.d_numVisible;
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}
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this.isRemainingItemsAdded = false;
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}
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else {
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totalShiftedItems += (this.d_numScroll * dir);
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if (this.isRemainingItemsAdded) {
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totalShiftedItems += this.remainingItems - (this.d_numScroll * dir);
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this.isRemainingItemsAdded = false;
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}
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let originalShiftedItems = isCircular ? (totalShiftedItems + this.d_numVisible) : totalShiftedItems;
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page = Math.abs(Math.floor(originalShiftedItems / this.d_numScroll));
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}
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if (isCircular && this.d_page === (this.totalIndicators - 1) && dir === -1) {
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totalShiftedItems = -1 * (this.value.length + this.d_numVisible);
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page = 0;
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}
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else if (isCircular && this.d_page === 0 && dir === 1) {
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totalShiftedItems = 0;
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page = (this.totalIndicators - 1);
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}
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else if (page === (this.totalIndicators - 1) && this.remainingItems > 0) {
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totalShiftedItems += ((this.remainingItems * -1) - (this.d_numScroll * dir));
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this.isRemainingItemsAdded = true;
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}
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if (this.$refs.itemsContainer) {
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DomHandler.removeClass(this.$refs.itemsContainer, 'p-items-hidden');
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this.$refs.itemsContainer.style.transform = this.isVertical() ? `translate3d(0, ${totalShiftedItems * (100/ this.d_numVisible)}%, 0)` : `translate3d(${totalShiftedItems * (100/ this.d_numVisible)}%, 0, 0)`;
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this.$refs.itemsContainer.style.transition = 'transform 500ms ease 0s';
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}
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this.totalShiftedItems = totalShiftedItems;
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this.$emit('update:page', page);
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this.d_page = page;
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},
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calculatePosition() {
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if (this.$refs.itemsContainer && this.responsiveOptions) {
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let windowWidth = window.innerWidth;
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let matchedResponsiveOptionsData = {
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numVisible: this.numVisible,
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numScroll: this.numScroll
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};
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for (let i = 0; i < this.responsiveOptions.length; i++) {
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let res = this.responsiveOptions[i];
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if (parseInt(res.breakpoint, 10) >= windowWidth) {
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matchedResponsiveOptionsData = res;
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}
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}
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if (this.d_numScroll !== matchedResponsiveOptionsData.numScroll) {
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let page = this.d_page;
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page = parseInt((page * this.d_numScroll) / matchedResponsiveOptionsData.numScroll);
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this.totalShiftedItems = (matchedResponsiveOptionsData.numScroll * page) * -1;
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if (this.isCircular()) {
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this.totalShiftedItems -= matchedResponsiveOptionsData.numVisible;
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}
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this.d_numScroll = matchedResponsiveOptionsData.numScroll;
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this.$emit('update:page', page);
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this.d_page = page;
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}
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if (this.d_numVisible !== matchedResponsiveOptionsData.numVisible) {
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this.d_numVisible = matchedResponsiveOptionsData.numVisible;
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}
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}
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},
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navBackward(e,index){
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if (this.d_circular || this.d_page !== 0) {
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this.step(1, index);
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}
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this.allowAutoplay = false;
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if (e.cancelable) {
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e.preventDefault();
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}
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},
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navForward(e,index){
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if (this.d_circular || this.d_page < (this.totalIndicators - 1)) {
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this.step(-1, index);
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}
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this.allowAutoplay = false;
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if (e.cancelable) {
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e.preventDefault();
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}
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},
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onIndicatorClick(e, index) {
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let page = this.d_page;
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if (index > page) {
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this.navForward(e, index);
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}
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else if (index < page) {
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this.navBackward(e, index);
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}
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},
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onTransitionEnd() {
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if (this.$refs.itemsContainer) {
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DomHandler.addClass(this.$refs.itemsContainer, 'p-items-hidden');
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this.$refs.itemsContainer.style.transition = '';
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if ((this.d_page === 0 || this.d_page === (this.totalIndicators - 1)) && this.isCircular()) {
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this.$refs.itemsContainer.style.transform = this.isVertical() ? `translate3d(0, ${this.totalShiftedItems * (100/ this.d_numVisible)}%, 0)` : `translate3d(${this.totalShiftedItems * (100/ this.d_numVisible)}%, 0, 0)`;
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}
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}
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},
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onTouchStart(e) {
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let touchobj = e.changedTouches[0];
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this.startPos = {
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x: touchobj.pageX,
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y: touchobj.pageY
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};
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},
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onTouchMove(e) {
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if (e.cancelable) {
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e.preventDefault();
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}
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},
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onTouchEnd(e) {
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let touchobj = e.changedTouches[0];
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if (this.isVertical()) {
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this.changePageOnTouch(e, (touchobj.pageY - this.startPos.y));
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}
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else {
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this.changePageOnTouch(e, (touchobj.pageX - this.startPos.x));
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}
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},
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changePageOnTouch(e, diff) {
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if (Math.abs(diff) > this.swipeThreshold) {
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if (diff < 0) { // left
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this.navForward(e);
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}
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else { // right
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this.navBackward(e);
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}
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}
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},
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bindDocumentListeners() {
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if (!this.documentResizeListener) {
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this.documentResizeListener = (e) => {
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this.calculatePosition(e);
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};
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window.addEventListener('resize', this.documentResizeListener);
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}
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},
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unbindDocumentListeners() {
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if(this.documentResizeListener) {
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window.removeEventListener('resize', this.documentResizeListener);
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this.documentResizeListener = null;
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}
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},
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startAutoplay() {
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this.interval = setInterval(() => {
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if(this.d_page === (this.totalIndicators - 1)) {
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this.step(-1, 0);
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}
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else {
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this.step(-1, this.d_page + 1);
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}
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},
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this.autoplayInterval);
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},
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stopAutoplay() {
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if (this.interval) {
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clearInterval(this.interval);
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}
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},
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createStyle() {
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if (!this.carouselStyle) {
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this.carouselStyle = document.createElement('style');
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this.carouselStyle.type = 'text/css';
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document.body.appendChild(this.carouselStyle);
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}
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let innerHTML = `
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#${this.id} .p-carousel-item {
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flex: 1 0 ${ (100/ this.d_numVisible) }%
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}
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`;
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if (this.responsiveOptions) {
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let _responsiveOptions = [...this.responsiveOptions];
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_responsiveOptions.sort((data1, data2) => {
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const value1 = data1.breakpoint;
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const value2 = data2.breakpoint;
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let result = null;
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if (value1 == null && value2 != null)
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result = -1;
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else if (value1 != null && value2 == null)
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result = 1;
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else if (value1 == null && value2 == null)
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result = 0;
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else if (typeof value1 === 'string' && typeof value2 === 'string')
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result = value1.localeCompare(value2, undefined, { numeric: true });
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else
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result = (value1 < value2) ? -1 : (value1 > value2) ? 1 : 0;
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return -1 * result;
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});
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for (let i = 0; i < _responsiveOptions.length; i++) {
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let res = _responsiveOptions[i];
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innerHTML += `
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@media screen and (max-width: ${res.breakpoint}) {
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#${this.id} .p-carousel-item {
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flex: 1 0 ${ (100/ res.numVisible) }%
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}
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}
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`
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}
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}
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this.carouselStyle.innerHTML = innerHTML;
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},
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isVertical() {
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return this.orientation === 'vertical';
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},
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isCircular() {
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return this.value && this.d_circular && this.value.length >= this.d_numVisible;
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},
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isAutoplay() {
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return this.autoplayInterval && this.allowAutoplay;
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},
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firstIndex() {
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return this.isCircular()? (-1 * (this.totalShiftedItems + this.d_numVisible)) : (this.totalShiftedItems * -1);
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},
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lastIndex() {
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return (this.firstIndex() + this.d_numVisible - 1);
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}
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},
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mounted() {
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let stateChanged = false;
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this.createStyle();
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this.calculatePosition();
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if (this.responsiveOptions) {
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this.bindDocumentListeners();
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}
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if (this.isCircular()) {
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let totalShiftedItems = this.totalShiftedItems;
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if (this.d_page === 0) {
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totalShiftedItems = -1 * this.d_numVisible;
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}
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else if (totalShiftedItems === 0) {
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totalShiftedItems = -1 * this.value.length;
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if (this.remainingItems > 0) {
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this.isRemainingItemsAdded = true;
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}
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}
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if (totalShiftedItems !== this.totalShiftedItems) {
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this.totalShiftedItems = totalShiftedItems;
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stateChanged = true;
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}
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}
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if (!stateChanged && this.isAutoplay()) {
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this.startAutoplay();
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}
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},
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updated() {
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const isCircular = this.isCircular();
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let stateChanged = false;
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let totalShiftedItems = this.totalShiftedItems;
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if (this.autoplayInterval) {
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this.stopAutoplay();
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}
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if(this.d_oldNumScroll !== this.d_numScroll || this.d_oldNumVisible !== this.d_numVisible || this.d_oldValue.length !== this.value.length) {
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this.remainingItems = (this.value.length - this.d_numVisible) % this.d_numScroll;
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let page = this.d_page;
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if (this.totalIndicators !== 0 && page >= this.totalIndicators) {
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page = this.totalIndicators - 1;
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this.$emit('update:page', page);
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this.d_page = page;
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stateChanged = true;
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}
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totalShiftedItems = (page * this.d_numScroll) * -1;
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if (isCircular) {
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totalShiftedItems -= this.d_numVisible;
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}
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if (page === (this.totalIndicators - 1) && this.remainingItems > 0) {
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totalShiftedItems += (-1 * this.remainingItems) + this.d_numScroll;
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this.isRemainingItemsAdded = true;
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}
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else {
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this.isRemainingItemsAdded = false;
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}
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if (totalShiftedItems !== this.totalShiftedItems) {
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this.totalShiftedItems = totalShiftedItems;
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stateChanged = true;
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}
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this.d_oldNumScroll = this.d_numScroll;
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this.d_oldNumVisible = this.d_numVisible;
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this.d_oldValue = this.value;
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this.$refs.itemsContainer.style.transform = this.isVertical() ? `translate3d(0, ${totalShiftedItems * (100/ this.d_numVisible)}%, 0)` : `translate3d(${totalShiftedItems * (100/ this.d_numVisible)}%, 0, 0)`;
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}
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if (isCircular) {
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if (this.d_page === 0) {
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totalShiftedItems = -1 * this.d_numVisible;
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}
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else if (totalShiftedItems === 0) {
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totalShiftedItems = -1 * this.value.length;
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if (this.remainingItems > 0) {
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this.isRemainingItemsAdded = true;
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}
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}
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if (totalShiftedItems !== this.totalShiftedItems) {
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this.totalShiftedItems = totalShiftedItems;
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stateChanged = true;
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}
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}
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if (!stateChanged && this.isAutoplay()) {
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this.startAutoplay();
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}
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},
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beforeUnmount() {
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if (this.responsiveOptions) {
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this.unbindDocumentListeners();
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}
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if (this.autoplayInterval) {
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this.stopAutoplay();
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}
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},
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computed: {
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totalIndicators() {
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return this.value ? Math.max(Math.ceil((this.value.length - this.d_numVisible) / this.d_numScroll) + 1, 0) : 0;
|
|
},
|
|
backwardIsDisabled() {
|
|
return (this.value && (!this.circular || this.value.length < this.d_numVisible) && this.d_page === 0);
|
|
},
|
|
forwardIsDisabled() {
|
|
return (this.value && (!this.circular || this.value.length < this.d_numVisible) && (this.d_page === (this.totalIndicators - 1) || this.totalIndicators === 0));
|
|
},
|
|
containerClasses() {
|
|
return ['p-carousel-container', this.containerClass];
|
|
},
|
|
contentClasses() {
|
|
return ['p-carousel-content ', this.contentClass];
|
|
},
|
|
indicatorsContentClasses() {
|
|
return ['p-carousel-indicators p-reset', this.indicatorsContentClass];
|
|
},
|
|
},
|
|
directives: {
|
|
'ripple': Ripple
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<style>
|
|
.p-carousel {
|
|
display: flex;
|
|
flex-direction: column;
|
|
}
|
|
|
|
.p-carousel-content {
|
|
display: flex;
|
|
flex-direction: column;
|
|
overflow: auto;
|
|
}
|
|
|
|
.p-carousel-prev,
|
|
.p-carousel-next {
|
|
align-self: center;
|
|
flex-grow: 0;
|
|
flex-shrink: 0;
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
overflow: hidden;
|
|
position: relative;
|
|
}
|
|
|
|
.p-carousel-container {
|
|
display: flex;
|
|
flex-direction: row;
|
|
}
|
|
|
|
.p-carousel-items-content {
|
|
overflow: hidden;
|
|
width: 100%;
|
|
}
|
|
|
|
.p-carousel-items-container {
|
|
display: flex;
|
|
flex-direction: row;
|
|
}
|
|
|
|
.p-carousel-indicators {
|
|
display: flex;
|
|
flex-direction: row;
|
|
justify-content: center;
|
|
flex-wrap: wrap;
|
|
}
|
|
|
|
.p-carousel-indicator > button {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
}
|
|
|
|
/* Vertical */
|
|
.p-carousel-vertical .p-carousel-container {
|
|
flex-direction: column;
|
|
}
|
|
|
|
.p-carousel-vertical .p-carousel-items-container {
|
|
flex-direction: column;
|
|
height: 100%;
|
|
}
|
|
|
|
/* Keyboard Support */
|
|
.p-items-hidden .p-carousel-item {
|
|
visibility: hidden;
|
|
}
|
|
|
|
.p-items-hidden .p-carousel-item.p-carousel-item-active {
|
|
visibility: visible;
|
|
}
|
|
</style>
|