469 lines
10 KiB
Vue
469 lines
10 KiB
Vue
<script setup lang="ts">
|
||
import { computed, onMounted, onUnmounted, ref, watch } from 'vue';
|
||
import { useRouter } from 'vue-router';
|
||
import { useI18n } from 'vue-i18n';
|
||
import type { BannerItem } from '../BannerCarousel.vue';
|
||
import defaultBannerImg from '../../assets/images/banner.webp';
|
||
|
||
const props = defineProps<{
|
||
banners: BannerItem[];
|
||
fallbackTo?: string;
|
||
}>();
|
||
|
||
const { t } = useI18n();
|
||
const router = useRouter();
|
||
const active = ref(0);
|
||
const timer = ref<ReturnType<typeof setInterval> | null>(null);
|
||
const FALLBACK_IMG = '/uploads/banners/welcome.svg';
|
||
|
||
const slideCount = computed(() => props.banners.length);
|
||
const canLoop = computed(() => slideCount.value > 1);
|
||
|
||
function imageUrl(banner: BannerItem) {
|
||
return banner.translation?.imageUrl || defaultBannerImg || FALLBACK_IMG;
|
||
}
|
||
|
||
function onImgError(e: Event) {
|
||
const img = e.target as HTMLImageElement;
|
||
if (img.dataset.fallbackApplied) return;
|
||
img.dataset.fallbackApplied = '1';
|
||
img.src = defaultBannerImg || FALLBACK_IMG;
|
||
}
|
||
|
||
function title(banner: BannerItem) {
|
||
return banner.translation?.title || t('home.banner_fallback');
|
||
}
|
||
|
||
function normalizeOffset(index: number) {
|
||
const len = slideCount.value;
|
||
if (!len) return 0;
|
||
let offset = index - active.value;
|
||
if (offset > len / 2) offset -= len;
|
||
if (offset < -len / 2) offset += len;
|
||
return offset;
|
||
}
|
||
|
||
/** Coverflow：略重叠，中间卡片置顶 */
|
||
function slideLayout(index: number) {
|
||
const offset = normalizeOffset(index);
|
||
const abs = Math.abs(offset);
|
||
|
||
if (abs > 1) {
|
||
return { hidden: true, offset, active: false };
|
||
}
|
||
|
||
const slotX = 50 + offset * 26;
|
||
const scale = offset === 0 ? 1 : 0.9;
|
||
const rotateY = offset === 0 ? 0 : offset < 0 ? 12 : -12;
|
||
const zIndex = offset === 0 ? 10 : 5;
|
||
|
||
return {
|
||
hidden: false,
|
||
offset,
|
||
active: offset === 0,
|
||
slotX,
|
||
scale,
|
||
rotateY,
|
||
zIndex,
|
||
};
|
||
}
|
||
|
||
function slideStyle(index: number) {
|
||
const layout = slideLayout(index);
|
||
if (layout.hidden) {
|
||
return {
|
||
left: '50%',
|
||
transform: 'translate(-50%, -50%) scale(0.7)',
|
||
opacity: '0',
|
||
zIndex: '0',
|
||
pointerEvents: 'none' as const,
|
||
};
|
||
}
|
||
|
||
return {
|
||
left: `${layout.slotX}%`,
|
||
transform: `translate(-50%, -50%) scale(${layout.scale}) rotateY(${layout.rotateY}deg)`,
|
||
opacity: '1',
|
||
zIndex: String(layout.zIndex),
|
||
pointerEvents: 'auto' as const,
|
||
};
|
||
}
|
||
|
||
function goTo(index: number) {
|
||
if (!slideCount.value) return;
|
||
active.value = (index + slideCount.value) % slideCount.value;
|
||
}
|
||
|
||
function next() {
|
||
goTo(active.value + 1);
|
||
}
|
||
|
||
function prev() {
|
||
goTo(active.value - 1);
|
||
}
|
||
|
||
function onBannerClick(banner: BannerItem, index: number) {
|
||
if (normalizeOffset(index) !== 0) {
|
||
goTo(index);
|
||
return;
|
||
}
|
||
if (banner.id) {
|
||
void router.push(`/announcements/${banner.id}`);
|
||
return;
|
||
}
|
||
if (props.fallbackTo) {
|
||
void router.push(props.fallbackTo);
|
||
}
|
||
}
|
||
|
||
function startAutoPlay() {
|
||
stopAutoPlay();
|
||
if (!canLoop.value) return;
|
||
timer.value = setInterval(next, 5000);
|
||
}
|
||
|
||
function stopAutoPlay() {
|
||
if (timer.value) {
|
||
clearInterval(timer.value);
|
||
timer.value = null;
|
||
}
|
||
}
|
||
|
||
watch(
|
||
() => props.banners.length,
|
||
() => {
|
||
active.value = 0;
|
||
startAutoPlay();
|
||
},
|
||
);
|
||
|
||
onMounted(startAutoPlay);
|
||
onUnmounted(stopAutoPlay);
|
||
</script>
|
||
|
||
<template>
|
||
<section
|
||
v-if="banners.length"
|
||
class="banner-coverflow"
|
||
@mouseenter="stopAutoPlay"
|
||
@mouseleave="startAutoPlay"
|
||
>
|
||
<div class="coverflow-stage">
|
||
<button
|
||
v-for="(banner, i) in banners"
|
||
:key="banner.id ?? i"
|
||
type="button"
|
||
class="coverflow-slide"
|
||
:class="{ 'is-active': slideLayout(i).active, 'is-side': Math.abs(slideLayout(i).offset) === 1 }"
|
||
:style="slideStyle(i)"
|
||
:aria-label="title(banner)"
|
||
@click="onBannerClick(banner, i)"
|
||
>
|
||
<div class="slide-card">
|
||
<img
|
||
v-if="imageUrl(banner)"
|
||
:src="imageUrl(banner)"
|
||
:alt="''"
|
||
class="slide-img"
|
||
:loading="i === 0 ? 'eager' : 'lazy'"
|
||
@error="onImgError"
|
||
/>
|
||
<div v-else class="slide-fallback" aria-hidden="true">
|
||
<svg class="fallback-icon" viewBox="0 0 24 24" aria-hidden="true">
|
||
<path fill="currentColor" d="M21 19V5c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2zM8.5 13.5l2.5 3.01L14.5 12l4.5 6H5l3.5-4.5z"/>
|
||
</svg>
|
||
</div>
|
||
<div v-if="slideLayout(i).active" class="click-hint" aria-hidden="true">
|
||
<span class="click-ring" />
|
||
<svg class="click-icon" viewBox="0 0 24 24" aria-hidden="true">
|
||
<path
|
||
fill="currentColor"
|
||
d="M9 11.24V7.5a2.5 2.5 0 0 1 5 0v3.74c1.21-.81 2-2.18 2-3.74C16 5.01 13.99 3 11.5 3S7 5.01 7 7.5c0 1.56.79 2.93 2 3.74zm9.84 4.63-4.54-2.26a1.5 1.5 0 0 0-.54-.11H13v-6c0-.83-.67-1.5-1.5-1.5S10 6.67 10 7.5v10.74l-3.43-.72a1 1 0 0 0-.24-.03c-.31 0-.59.13-.79.33l-.79.8 4.94 4.94c.27.27.65.44 1.06.44h6.79c.75 0 1.33-.55 1.44-1.28l.75-5.27a1.5 1.5 0 0 0-.91-1.38z"
|
||
/>
|
||
</svg>
|
||
</div>
|
||
</div>
|
||
</button>
|
||
|
||
<button
|
||
v-if="canLoop"
|
||
type="button"
|
||
class="nav-btn prev"
|
||
:aria-label="t('home.banner_prev')"
|
||
@click.stop="prev"
|
||
>
|
||
<svg viewBox="0 0 24 24" aria-hidden="true"><path fill="currentColor" d="M15.41 7.41 14 6l-6 6 6 6 1.41-1.41L10.83 12z"/></svg>
|
||
</button>
|
||
<button
|
||
v-if="canLoop"
|
||
type="button"
|
||
class="nav-btn next"
|
||
:aria-label="t('home.banner_next')"
|
||
@click.stop="next"
|
||
>
|
||
<svg viewBox="0 0 24 24" aria-hidden="true"><path fill="currentColor" d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg>
|
||
</button>
|
||
</div>
|
||
|
||
<div v-if="canLoop" class="coverflow-dots">
|
||
<button
|
||
v-for="(_, i) in banners"
|
||
:key="i"
|
||
type="button"
|
||
class="dot"
|
||
:class="{ active: i === active }"
|
||
:aria-label="t('home.banner_slide', { n: i + 1 })"
|
||
@click.stop="goTo(i)"
|
||
/>
|
||
</div>
|
||
</section>
|
||
</template>
|
||
|
||
<style scoped>
|
||
.banner-coverflow {
|
||
width: 100%;
|
||
padding: 4px 0 0;
|
||
}
|
||
|
||
.coverflow-stage {
|
||
position: relative;
|
||
height: clamp(260px, 28vw, 360px);
|
||
perspective: 1000px;
|
||
}
|
||
|
||
.coverflow-slide {
|
||
position: absolute;
|
||
top: 50%;
|
||
width: 42%;
|
||
max-width: 560px;
|
||
height: 90%;
|
||
padding: 0;
|
||
border: none;
|
||
background: transparent;
|
||
cursor: pointer;
|
||
transition:
|
||
left 0.55s cubic-bezier(0.25, 0.8, 0.25, 1),
|
||
transform 0.55s cubic-bezier(0.25, 0.8, 0.25, 1),
|
||
opacity 0.4s ease;
|
||
transform-style: preserve-3d;
|
||
will-change: left, transform;
|
||
}
|
||
|
||
.slide-card {
|
||
position: relative;
|
||
width: 100%;
|
||
height: 100%;
|
||
border-radius: 14px;
|
||
overflow: hidden;
|
||
background: linear-gradient(180deg, #141414 0%, #0a0a0a 100%);
|
||
box-shadow: 0 10px 32px rgba(0, 0, 0, 0.45);
|
||
transition: box-shadow 0.35s ease, filter 0.35s ease, transform 0.25s ease;
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
}
|
||
|
||
.coverflow-slide.is-side .slide-card {
|
||
filter: brightness(0.72) saturate(0.9);
|
||
box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
|
||
}
|
||
|
||
.coverflow-slide.is-side:hover .slide-card {
|
||
filter: brightness(0.88) saturate(1);
|
||
}
|
||
|
||
.coverflow-slide.is-active .slide-card {
|
||
filter: none;
|
||
box-shadow:
|
||
0 16px 40px rgba(0, 0, 0, 0.5),
|
||
0 0 28px rgba(0, 102, 204, 0.22),
|
||
0 0 56px rgba(0, 102, 204, 0.1);
|
||
animation: banner-breathe 3s ease-in-out infinite;
|
||
}
|
||
|
||
.coverflow-slide.is-active:hover .slide-card {
|
||
animation: none;
|
||
transform: scale(1.018);
|
||
}
|
||
|
||
@keyframes banner-breathe {
|
||
0%,
|
||
100% {
|
||
transform: scale(1);
|
||
box-shadow:
|
||
0 16px 40px rgba(0, 0, 0, 0.5),
|
||
0 0 22px rgba(0, 102, 204, 0.16),
|
||
0 0 48px rgba(0, 102, 204, 0.08);
|
||
}
|
||
|
||
50% {
|
||
transform: scale(1.008);
|
||
box-shadow:
|
||
0 18px 44px rgba(0, 0, 0, 0.52),
|
||
0 0 32px rgba(0, 102, 204, 0.26),
|
||
0 0 60px rgba(0, 102, 204, 0.12);
|
||
}
|
||
}
|
||
|
||
.slide-img {
|
||
width: 100%;
|
||
height: 100%;
|
||
object-fit: contain;
|
||
object-position: center;
|
||
display: block;
|
||
}
|
||
|
||
.slide-fallback {
|
||
width: 100%;
|
||
height: 100%;
|
||
min-height: 120px;
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
background: linear-gradient(135deg, rgba(0, 102, 204, 0.12), #1a1a1a);
|
||
}
|
||
|
||
.fallback-icon {
|
||
width: 40px;
|
||
height: 40px;
|
||
color: rgba(0, 102, 204, 0.35);
|
||
}
|
||
|
||
.click-hint {
|
||
position: absolute;
|
||
right: 10px;
|
||
bottom: 10px;
|
||
width: 28px;
|
||
height: 28px;
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
pointer-events: none;
|
||
z-index: 2;
|
||
background: rgba(0, 0, 0, 0.35);
|
||
border-radius: 50%;
|
||
}
|
||
|
||
.click-ring {
|
||
position: absolute;
|
||
inset: 0;
|
||
border-radius: 50%;
|
||
border: 1px solid rgba(0, 102, 204, 0.45);
|
||
animation: click-ring-pulse 2.8s ease-out infinite;
|
||
}
|
||
|
||
.click-icon {
|
||
position: relative;
|
||
width: 15px;
|
||
height: 15px;
|
||
color: rgba(0, 102, 204, 0.88);
|
||
animation: click-icon-bob 2.8s ease-in-out infinite;
|
||
}
|
||
|
||
@keyframes click-ring-pulse {
|
||
0% {
|
||
transform: scale(0.9);
|
||
opacity: 0.55;
|
||
}
|
||
|
||
70% {
|
||
transform: scale(1.35);
|
||
opacity: 0;
|
||
}
|
||
|
||
100% {
|
||
transform: scale(1.35);
|
||
opacity: 0;
|
||
}
|
||
}
|
||
|
||
@keyframes click-icon-bob {
|
||
0%,
|
||
100% {
|
||
transform: translateY(1px) scale(1);
|
||
opacity: 0.65;
|
||
}
|
||
|
||
50% {
|
||
transform: translateY(-1px) scale(1.06);
|
||
opacity: 1;
|
||
}
|
||
}
|
||
|
||
.coverflow-slide.is-active:hover .click-hint {
|
||
opacity: 0;
|
||
transition: opacity 0.2s ease;
|
||
}
|
||
|
||
@media (prefers-reduced-motion: reduce) {
|
||
.coverflow-slide.is-active .slide-card,
|
||
.click-ring,
|
||
.click-icon {
|
||
animation: none;
|
||
}
|
||
}
|
||
|
||
.nav-btn {
|
||
position: absolute;
|
||
top: 50%;
|
||
transform: translateY(-50%);
|
||
width: 36px;
|
||
height: 36px;
|
||
border-radius: 50%;
|
||
border: 1px solid rgba(0, 102, 204, 0.4);
|
||
background: rgba(10, 10, 10, 0.75);
|
||
color: var(--primary-light);
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
z-index: 20;
|
||
transition: background 0.2s, border-color 0.2s;
|
||
}
|
||
|
||
.nav-btn svg {
|
||
width: 20px;
|
||
height: 20px;
|
||
}
|
||
|
||
.nav-btn:hover {
|
||
background: rgba(0, 102, 204, 0.2);
|
||
border-color: var(--primary);
|
||
}
|
||
|
||
.nav-btn.prev {
|
||
left: 4px;
|
||
}
|
||
|
||
.nav-btn.next {
|
||
right: 4px;
|
||
}
|
||
|
||
.coverflow-dots {
|
||
display: flex;
|
||
justify-content: center;
|
||
gap: 8px;
|
||
margin-top: 14px;
|
||
}
|
||
|
||
.dot {
|
||
width: 8px;
|
||
height: 8px;
|
||
border-radius: 50%;
|
||
background: rgba(255, 255, 255, 0.25);
|
||
border: none;
|
||
padding: 0;
|
||
cursor: pointer;
|
||
transition: all 0.25s ease;
|
||
}
|
||
|
||
.dot.active {
|
||
width: 22px;
|
||
border-radius: 4px;
|
||
background: var(--primary);
|
||
}
|
||
|
||
.dot:hover:not(.active) {
|
||
background: rgba(255, 255, 255, 0.45);
|
||
}
|
||
</style>
|