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<template>
<div class="bottom-thumbnails">
<div class="thumbnails"
ref="thumbnailsRef"
@wheel.prevent="$event => handleMousewheelThumbnails($event)"
>
<div
class="thumbnail"
:class="{ 'active': index === slideIndex }"
v-for="(slide, index) in slides"
:key="slide.id"
@click="turnSlideToIndex(index)"
>
<ThumbnailSlide :slide="slide" :size="100 / viewportRatio" :visible="index < slidesLoadLimit" />
</div>
</div>
</div>
</template>
<script lang="ts" setup>
import { nextTick, ref, watch } from 'vue'
import { storeToRefs } from 'pinia'
import { useSlidesStore } from '@/store'
import useLoadSlides from '@/hooks/useLoadSlides'
import useExecPlay from './hooks/useExecPlay'
import ThumbnailSlide from '@/views/components/ThumbnailSlide/index.vue'
const { slides, slideIndex, viewportRatio } = storeToRefs(useSlidesStore())
const thumbnailsRef = ref<HTMLElement>()
const { turnSlideToIndex } = useExecPlay()
const { slidesLoadLimit } = useLoadSlides()
const handleMousewheelThumbnails = (e: WheelEvent) => {
if (!thumbnailsRef.value) return
thumbnailsRef.value.scrollBy(e.deltaY, 0)
}
watch(slideIndex, () => {
nextTick(() => {
if (!thumbnailsRef.value) return
const activeThumbnailRef: HTMLElement | null = thumbnailsRef.value.querySelector('.thumbnail.active')
if (!activeThumbnailRef) return
const width = thumbnailsRef.value.offsetWidth
const offsetLeft = activeThumbnailRef.offsetLeft + activeThumbnailRef.clientWidth / 2
thumbnailsRef.value.scrollTo({ left: offsetLeft - width / 2, behavior: 'smooth' })
})
})
</script>
<style lang="scss" scoped>
.bottom-thumbnails {
width: 100%;
position: fixed;
left: 0;
bottom: -120px;
z-index: 4;
transition: bottom $transitionDelay;
&::after {
content: '';
width: 100%;
height: 3px;
position: absolute;
left: 0;
top: -3px;
}
&:hover {
bottom: 0;
z-index: 20;
}
}
.thumbnails {
height: 120px;
padding: 10px;
white-space: nowrap;
overflow-x: auto;
overflow-y: hidden;
background-color: rgba($color: #000, $alpha: .75);
position: relative;
}
.thumbnail {
display: inline-block;
outline: 2px solid #aaa;
& + .thumbnail {
margin-left: 10px;
}
&:hover {
outline-color: $themeColor;
}
&.active {
outline-width: 3px;
outline-color: $themeColor;
}
}
::-webkit-scrollbar {
width: 0;
height: 0;
}
</style> |