<template>
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<div class="carousel-cards">
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<button v-if="canScrollLeft"
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class="nav-button nav-button-left"
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@click="scrollLeftFn">
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<img src="@/assets/BI/jiantou.png"
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alt="左箭头" />
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</button>
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<div class="cards-container"
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:style="{ '--visible-count': visibleCount }"
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ref="cardsContainerRef">
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<div v-for="(item, index) in items"
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:key="index"
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class="card-item">
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<div v-if="item.icon"
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class="card-icon"
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:style="{ backgroundImage: `url(${item.icon})` }"></div>
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<div class="card-title">
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<div class="card-label">{{ item.label }}</div>
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<div class="card-value">
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<span class="value-number">{{ item.value }}</span>
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<span class="value-unit">{{ item.unit }}</span>
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</div>
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<div v-if="item.rate ?? item.ratio ?? item.percent"
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class="card-rate">
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<span class="rate-value">{{ item.rate ?? item.ratio ?? item.percent }}%</span>
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</div>
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</div>
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</div>
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</div>
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<button v-if="canScrollRight"
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class="nav-button nav-button-right"
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@click="scrollRightFn">
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<img src="@/assets/BI/jiantou.png"
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alt="右箭头" />
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</button>
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</div>
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</template>
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<script setup>
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import {
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ref,
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onMounted,
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onBeforeUnmount,
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nextTick,
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watch,
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computed,
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} from "vue";
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const props = defineProps({
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items: {
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type: Array,
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default: () => [],
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validator: value => {
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return value.every(
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item =>
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item &&
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typeof item.label !== "undefined" &&
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typeof item.value !== "undefined" &&
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typeof item.unit !== "undefined"
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);
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},
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},
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visibleCount: {
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type: Number,
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default: 3,
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},
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});
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const cardsContainerRef = ref(null);
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const currentScrollLeft = ref(0);
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const maxScrollLeft = ref(0);
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// 检查是否可以向左滚动
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const canScrollLeft = computed(() => {
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return currentScrollLeft.value > 0;
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});
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// 检查是否可以向右滚动
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const canScrollRight = computed(() => {
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return currentScrollLeft.value < maxScrollLeft.value;
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});
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// 更新滚动状态
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const updateScrollState = () => {
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const container = cardsContainerRef.value;
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if (!container) return;
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currentScrollLeft.value = container.scrollLeft;
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maxScrollLeft.value = container.scrollWidth - container.clientWidth;
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};
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// 向左滚动
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const scrollLeftFn = () => {
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const container = cardsContainerRef.value;
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if (!container) return;
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const scrollItems = Array.from(container.querySelectorAll(".card-item"));
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if (scrollItems.length === 0) return;
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const itemWidth = scrollItems[0]?.offsetWidth || 0;
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const gap = 12;
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const scrollDistance = itemWidth + gap;
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container.scrollBy({
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left: -scrollDistance,
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behavior: "smooth",
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});
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// 延迟更新状态，等待滚动动画完成
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setTimeout(() => {
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updateScrollState();
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}, 300);
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};
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// 向右滚动
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const scrollRightFn = () => {
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const container = cardsContainerRef.value;
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if (!container) return;
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const scrollItems = Array.from(container.querySelectorAll(".card-item"));
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if (scrollItems.length === 0) return;
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const itemWidth = scrollItems[0]?.offsetWidth || 0;
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const gap = 12;
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const scrollDistance = itemWidth + gap;
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container.scrollBy({
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left: scrollDistance,
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behavior: "smooth",
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});
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// 延迟更新状态，等待滚动动画完成
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setTimeout(() => {
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updateScrollState();
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}, 300);
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};
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// 监听 items 变化，更新滚动状态
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watch(
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() => props.items,
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() => {
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nextTick(() => {
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updateScrollState();
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});
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},
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{ deep: true }
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);
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onMounted(() => {
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nextTick(() => {
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updateScrollState();
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// 监听滚动事件
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const container = cardsContainerRef.value;
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if (container) {
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container.addEventListener("scroll", updateScrollState);
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}
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});
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});
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onBeforeUnmount(() => {
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// 清理滚动事件监听器
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const container = cardsContainerRef.value;
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if (container) {
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container.removeEventListener("scroll", updateScrollState);
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}
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});
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</script>
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<style scoped>
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.carousel-cards {
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width: 100%;
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overflow: hidden;
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position: relative;
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display: flex;
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align-items: center;
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}
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.cards-container {
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display: flex;
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gap: 12px;
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width: 100%;
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overflow-x: auto;
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overflow-y: hidden;
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scrollbar-width: none; /* Firefox */
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-ms-overflow-style: none; /* IE and Edge */
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padding-bottom: 4px;
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scroll-behavior: smooth;
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}
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.cards-container::-webkit-scrollbar {
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display: none; /* Chrome, Safari, Opera */
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}
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.nav-button {
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position: absolute;
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top: 50%;
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transform: translateY(-50%);
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width: 32px;
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height: 32px;
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background: rgba(26, 88, 176, 0.6);
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border: 1px solid rgba(26, 88, 176, 0.8);
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border-radius: 50%;
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display: flex;
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align-items: center;
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justify-content: center;
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cursor: pointer;
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z-index: 10;
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transition: all 0.3s ease;
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padding: 0;
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}
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.nav-button:hover {
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background: rgba(26, 88, 176, 0.8);
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transform: translateY(-50%) scale(1.1);
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}
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.nav-button-left {
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left: -16px;
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}
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.nav-button-left img {
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width: 16px;
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height: 16px;
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transform: rotate(180deg);
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}
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.nav-button-right {
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right: -16px;
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}
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.nav-button-right img {
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width: 16px;
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height: 16px;
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}
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.card-item {
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flex: 0 0
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calc((100% - (var(--visible-count) - 1) * 12px) / var(--visible-count));
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min-width: calc(
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(100% - (var(--visible-count) - 1) * 12px) / var(--visible-count)
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);
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display: flex;
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align-items: center;
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background: linear-gradient(
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269deg,
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rgba(27, 57, 126, 0.13) 0%,
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rgba(33, 137, 206, 0.33) 98.13%,
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#24aff4 100%
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);
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border-radius: 8px 8px 8px 8px;
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padding: 12px 16px;
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transition: all 0.3s ease;
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}
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.card-item:hover {
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transform: translateY(-2px);
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}
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.card-icon {
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width: 80px;
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height: 60px;
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background-size: cover;
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background-position: center;
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background-repeat: no-repeat;
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flex-shrink: 0;
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margin-right: 12px;
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}
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.card-title {
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display: flex;
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align-items: flex-start;
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flex-direction: column;
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flex: 1;
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}
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.card-label {
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font-weight: 400;
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font-size: 14px;
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color: #ffffff;
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margin-bottom: 4px;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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width: 100%;
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}
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.card-value {
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display: flex;
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align-items: baseline;
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gap: 4px;
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}
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.card-rate {
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margin-top: 4px;
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display: flex;
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align-items: center;
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gap: 6px;
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font-weight: 400;
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font-size: 12px;
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color: rgba(255, 255, 255, 0.85);
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}
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.rate-label {
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opacity: 0.85;
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}
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.rate-value {
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font-weight: 500;
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}
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.value-number {
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font-weight: 400;
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font-size: 14px;
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color: #ffffff;
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line-height: 1;
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}
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.value-unit {
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font-size: 14px;
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color: #ffffff;
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font-weight: 400;
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}
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</style>
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