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#app
//- .bg 是另外增加頁面效果,可刪
.bg(:style="'background-image: url(' + carousels[show].img + ')'")
//- container
.container
//- carousel
//- data-auto 是否自動輪播,預設false。 data-delay 間隔多久,預設3000
.carousel-wrap(ref="carousel",
data-auto="true", data-delay="5000",
@mouseenter.stop="toggleTimer = false", @mouseleave.stop="toggleTimer = true",
@touchstart.stop="touchStart", @touchmove.stop="touchMove"
:style="'min-height:' + minHeight ")
//- carousel items
keep-alive
transition(:name="carouselName")
.item(v-for="(s, i) in carousels", v-if="show == i", :key="i")
a(:href="s.href")
img(:src="s.img")
//- button: prev, next
a.button-prev(href="#", @click.prevent="toPrev")
img(src="//akveo.github.io/eva-icons/outline/png/128/arrow-ios-back-outline.png")
a.button-next(href="#", @click.prevent="toNext")
img(src="//akveo.github.io/eva-icons/outline/png/128/arrow-ios-forward-outline.png")
//- dots
.dot-group
a(v-for="(l, i) in len", href="#", :class="{ 'active': show == i }", @click.prevent="show = i")
*, *::before, *::after
box-sizing: border-box
// full background
html, body, .container
height: 100vh
overflow-y: hidden
.bg
position: fixed
z-index: -1
width: 100vw
height: 100vh
background-size: cover
background-repeat: no-repeat
background-position: center center
filter: blur(30px)
transition: background-image .5s
&::before
content: ''
position: absolute
top: 0
right: 0
left: 0
bottom: 0
background: linear-gradient(to bottom, rgba(0,0,0,0) 0%,rgba(0,0,0,.2) 100%)
.container
display: flex
justify-content: center
align-items: center
margin-right: auto
margin-left: auto
padding-top: 5vh
max-width: 900px
// carousel items
.carousel-wrap
position: relative
width: 100%
overflow: hidden
border: 2px solid rgba(#fff, .1)
box-shadow: 0 10px 20px rgba(0, 0, 0, .19), 0 6px 6px rgba(0, 0, 0, .23)
.item
position: absolute
top: 0
right: 0
left: 0
bottom: 0
display: flex
justify-content: center
align-items: center
width: 100%
background: #000
color: #FFF
opacity: 1
&:first-of-type
position: relative
img
display: block
max-width: 100%
a
display: block
// buttons: prev, next
.button-prev, .button-next, .dot-group
position: absolute
z-index: 1
.button-prev, .button-next
top: 50%
transform: translateY(-50%)
transition: opacity .3s
&:hover
opacity: .7
img
display: block
max-width: 50px
.button-next
right: 0
// dots
.dot-group
right: 0
bottom: 8px
left: 0
display: flex
justify-content: center
a
display: block
margin-right: 8px
margin-left: 8px
width: 16px
height: 16px
background: rgba(#fff, .5)
border: 2px solid rgba(#FFF, .5)
border-radius: 50%
transition: .3s
&:hover, &.active
background: #fff
// carousel effect
.carousel-prev-enter-active, .carousel-prev-leave-active,
.carousel-next-enter-active, .carousel-next-leave-active
transition: transform 1s cubic-bezier(0.215, 0.610, 0.355, 1.000)
will-change: transform
.carousel-next-enter, .carousel-prev-leave-to
transform: translateX(100%)
.carousel-next-leave-to, .carousel-prev-enter
transform: translateX(-100%)
// carousel items
const carousels = [
{
img: 'https://picsum.photos/900/506?image=1081',
href: "#"
},
{
img: 'https://picsum.photos/900/506?image=1068',
href: "#"
},
{
img: 'https://picsum.photos/900/506?image=989',
href: "#"
}
];
// vue
new Vue({
el: '#app',
data: {
carouselName: 'carousel-next',
carousels: carousels,
len: 0,
show: 0,
xDown: null, // for swiper
yDown: null, // for swiper
autoplay: false, // 是否自動輪播
timer: null, // auto play
timerDelay: 3000, // 自動輪播間隔秒數
toggleTimer: true, // pause auto play
minHeight: 0 // 抓最小高度
},
methods: {
toNext() {
this.carouselName = 'carousel-next';
this.show + 1 >= this.len ? this.show = 0 : this.show = this.show + 1;
},
toPrev() {
this.carouselName = 'carousel-prev';
this.show - 1 < 0 ? this.show = this.len - 1 : this.show = this.show - 1;
},
// swiper event(for mobile)
touchStart(e) {
this.xDown = e.touches[0].clientX;
this.yDown = e.touches[0].clientY;
},
touchMove(e) {
const _this = this;
if(!this.xDown || !this.yDown) { return; }
let xUp = e.touches[0].clientX;
let yUp = e.touches[0].clientY;
let xDiff = this.xDown - xUp;
let yDiff = this.yDown - yUp;
if(Math.abs(xDiff) > Math.abs(yDiff)) {
xDiff > 0 ? _this.toNext() : _this.toPrev();
}
this.xDown = null;
this.yDown = null;
},
// 自動輪播
autoPlay() {
setInterval(() => {
if(this.toggleTimer) this.toNext();
}, this.timerDelay);
}
},
mounted() {
this.len = this.carousels.length;
this.autoplay = this.$refs.carousel.dataset.auto == 'true';
this.timerDelay = Number(this.$refs.carousel.dataset.delay) || 3000;
if(this.autoplay) this.autoPlay();
window.addEventListener('load', () => {
this.minHeight = this.$refs.carousel.offsetHeight + 'px';
});
},
});
Also see: Tab Triggers