Files
blog-admin-web/src/views/api/aplayer/components/aplayer-lrc.vue
T
2023-01-28 01:02:19 +08:00

120 lines
3.2 KiB
Vue

<template>
<div class="aplayer-lrc">
<div
class="aplayer-lrc-contents"
:style="transformStyle"
>
<p
v-for="(line, index) of lrcLines"
:key="index"
:class="{ 'aplayer-lrc-current': index === currentLineIndex }"
>
{{ line[1] }}
</p>
</div>
</div>
</template>
<script lang="ts" setup>
import { computed, watch, ref } from 'vue'
import { parseLrc } from '../utils'
import { StatType } from '@/model/api/music'
const props = defineProps<{
lrcSource: string
playStat: StatType
}>()
const displayLrc = ref('')
const currentLineIndex = ref(0)
const lrcLines = computed(() => parseLrc(displayLrc.value))
const transformStyle = computed(() => {
return {
transform: `translateY(${-currentLineIndex.value * 16}px)`,
webkitTransform: `translateY(${-currentLineIndex.value * 16}px)`,
}
})
watch(() => props.lrcSource, (lrcSource: string) => {
currentLineIndex.value = 0
if (/^https?:\/\//.test(lrcSource)) {
fetch(lrcSource)
.then(response => response.text())
.then(lrc => displayLrc.value = lrc)
} else {
displayLrc.value = lrcSource
}
}, { immediate: true })
watch(() => props.playStat.playedTime, (playedTime: number) => {
for (let i = 0; i < lrcLines.value.length; i++) {
const line = lrcLines.value[i]
const nextLine = lrcLines.value[i + 1]
if (playedTime >= line[0] && (!nextLine || playedTime < nextLine[0])) {
currentLineIndex.value = i
}
}
})
</script>
<style lang="less" scoped>
@import "../less/variables";
.aplayer-lrc {
position: relative;
height: @lrc-height;
text-align: center;
overflow: hidden;
margin-bottom: 7px;
&:before {
position: absolute;
top: 0;
z-index: 1;
display: block;
overflow: hidden;
width: 100%;
height: 10%;
content: ' ';
background: -moz-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0) 100%);
background: -webkit-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0) 100%);
background: linear-gradient(to bottom, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0) 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#00ffffff', GradientType=0);
}
&:after {
position: absolute;
bottom: 0;
z-index: 1;
display: block;
overflow: hidden;
width: 100%;
height: 33%;
content: ' ';
background: -moz-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.8) 100%);
background: -webkit-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.8) 100%);
background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.8) 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00ffffff', endColorstr='#ccffffff', GradientType=0);
}
p {
font-size: 12px;
color: #666;
line-height: 16px;
height: 16px;
padding: 0;
margin: 0;
transition: all 0.5s ease-out;
opacity: 0.4;
overflow: hidden;
&.aplayer-lrc-current {
opacity: 1;
overflow: visible;
height: initial;
}
}
.aplayer-lrc-contents {
width: 100%;
transition: all 0.5s ease-out;
user-select: text;
cursor: default;
}
}
</style>