audiobookshelf/client/components/covers/BookCover.vue

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Vue
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<template>
<div class="relative rounded-sm overflow-hidden" :style="{ height: height + 'px', width: width + 'px', maxWidth: width + 'px', minWidth: width + 'px' }">
<div class="w-full h-full relative bg-bg">
<div v-if="showCoverBg" class="bg-primary absolute top-0 left-0 w-full h-full">
<div class="w-full h-full z-0" ref="coverBg" />
</div>
<img v-if="audiobook" ref="cover" :src="fullCoverUrl" loading="lazy" @error="imageError" @load="imageLoaded" class="w-full h-full absolute top-0 left-0 z-10 duration-300 transition-opacity" :style="{ opacity: imageReady ? '1' : '0' }" :class="showCoverBg ? 'object-contain' : 'object-cover'" />
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<div v-show="loading && audiobook" class="absolute top-0 left-0 h-full w-full flex items-center justify-center">
<p class="font-book text-center" :style="{ fontSize: 0.75 * sizeMultiplier + 'rem' }">{{ title }}</p>
<div class="absolute top-2 right-2">
<div class="la-ball-spin-clockwise la-sm">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
</div>
</div>
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</div>
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<div v-if="imageFailed" class="absolute top-0 left-0 right-0 bottom-0 w-full h-full bg-red-100" :style="{ padding: placeholderCoverPadding + 'rem' }">
<div class="w-full h-full border-2 border-error flex flex-col items-center justify-center">
<img src="/Logo.png" loading="lazy" class="mb-2" :style="{ height: 64 * sizeMultiplier + 'px' }" />
<p class="text-center font-book text-error" :style="{ fontSize: titleFontSize + 'rem' }">Invalid Cover</p>
</div>
</div>
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<div v-if="!hasCover" class="absolute top-0 left-0 right-0 bottom-0 w-full h-full flex items-center justify-center z-10" :style="{ padding: placeholderCoverPadding + 'rem' }">
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<div>
<p class="text-center font-book" style="color: rgb(247 223 187)" :style="{ fontSize: titleFontSize + 'rem' }">{{ titleCleaned }}</p>
</div>
</div>
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<div v-if="!hasCover" class="absolute left-0 right-0 w-full flex items-center justify-center z-10" :style="{ padding: placeholderCoverPadding + 'rem', bottom: authorBottom + 'rem' }">
<p class="text-center font-book" style="color: rgb(247 223 187); opacity: 0.75" :style="{ fontSize: authorFontSize + 'rem' }">{{ authorCleaned }}</p>
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</div>
</div>
</template>
<script>
export default {
props: {
audiobook: {
type: Object,
default: () => {}
},
authorOverride: String,
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width: {
type: Number,
default: 120
},
bookCoverAspectRatio: Number
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},
data() {
return {
loading: true,
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imageFailed: false,
showCoverBg: false,
imageReady: false
}
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},
watch: {
cover() {
this.imageFailed = false
}
},
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computed: {
squareAspectRatio() {
return this.bookCoverAspectRatio === 1
},
height() {
return this.width * this.bookCoverAspectRatio
},
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book() {
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if (!this.audiobook) return {}
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return this.audiobook.book || {}
},
title() {
return this.book.title || 'No Title'
},
titleCleaned() {
if (this.title.length > 60) {
return this.title.slice(0, 57) + '...'
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}
return this.title
},
author() {
if (this.authorOverride) return this.authorOverride
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return this.book.author || 'Unknown'
},
authorCleaned() {
if (this.author.length > 30) {
return this.author.slice(0, 27) + '...'
}
return this.author
},
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placeholderUrl() {
return '/book_placeholder.jpg'
},
fullCoverUrl() {
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if (!this.audiobook) return null
var store = this.$store || this.$nuxt.$store
return store.getters['audiobooks/getBookCoverSrc'](this.audiobook, this.placeholderUrl)
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},
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cover() {
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return this.book.cover || this.placeholderUrl
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},
hasCover() {
return !!this.book.cover
},
sizeMultiplier() {
var baseSize = this.squareAspectRatio ? 192 : 120
return this.width / baseSize
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},
titleFontSize() {
return 0.75 * this.sizeMultiplier
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},
authorFontSize() {
return 0.6 * this.sizeMultiplier
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},
placeholderCoverPadding() {
return 0.8 * this.sizeMultiplier
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},
authorBottom() {
return 0.75 * this.sizeMultiplier
},
userToken() {
return this.$store.getters['user/getToken']
}
},
methods: {
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setCoverBg() {
if (this.$refs.coverBg) {
this.$refs.coverBg.style.backgroundImage = `url("${this.fullCoverUrl}")`
this.$refs.coverBg.style.backgroundSize = 'cover'
this.$refs.coverBg.style.backgroundPosition = 'center'
this.$refs.coverBg.style.opacity = 0.25
this.$refs.coverBg.style.filter = 'blur(1px)'
}
},
hideCoverBg() {},
imageLoaded() {
this.loading = false
this.$nextTick(() => {
this.imageReady = true
})
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if (this.$refs.cover && this.cover !== this.placeholderUrl) {
var { naturalWidth, naturalHeight } = this.$refs.cover
var aspectRatio = naturalHeight / naturalWidth
var arDiff = Math.abs(aspectRatio - this.bookCoverAspectRatio)
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// If image aspect ratio is <= 1.45 or >= 1.75 then use cover bg, otherwise stretch to fit
if (arDiff > 0.15) {
this.showCoverBg = true
this.$nextTick(this.setCoverBg)
} else {
this.showCoverBg = false
}
}
},
imageError(err) {
this.loading = false
console.error('ImgError', err)
this.imageFailed = true
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}
},
mounted() {}
}
</script>
<style>
/*!
* Load Awesome v1.1.0 (http://github.danielcardoso.net/load-awesome/)
* Copyright 2015 Daniel Cardoso <@DanielCardoso>
* Licensed under MIT
*/
.la-ball-spin-clockwise,
.la-ball-spin-clockwise > div {
position: relative;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.la-ball-spin-clockwise {
display: block;
font-size: 0;
color: #fff;
}
.la-ball-spin-clockwise.la-dark {
color: #262626;
}
.la-ball-spin-clockwise > div {
display: inline-block;
float: none;
background-color: currentColor;
border: 0 solid currentColor;
}
.la-ball-spin-clockwise {
width: 32px;
height: 32px;
}
.la-ball-spin-clockwise > div {
position: absolute;
top: 50%;
left: 50%;
width: 8px;
height: 8px;
margin-top: -4px;
margin-left: -4px;
border-radius: 100%;
-webkit-animation: ball-spin-clockwise 1s infinite ease-in-out;
-moz-animation: ball-spin-clockwise 1s infinite ease-in-out;
-o-animation: ball-spin-clockwise 1s infinite ease-in-out;
animation: ball-spin-clockwise 1s infinite ease-in-out;
}
.la-ball-spin-clockwise > div:nth-child(1) {
top: 5%;
left: 50%;
-webkit-animation-delay: -0.875s;
-moz-animation-delay: -0.875s;
-o-animation-delay: -0.875s;
animation-delay: -0.875s;
}
.la-ball-spin-clockwise > div:nth-child(2) {
top: 18.1801948466%;
left: 81.8198051534%;
-webkit-animation-delay: -0.75s;
-moz-animation-delay: -0.75s;
-o-animation-delay: -0.75s;
animation-delay: -0.75s;
}
.la-ball-spin-clockwise > div:nth-child(3) {
top: 50%;
left: 95%;
-webkit-animation-delay: -0.625s;
-moz-animation-delay: -0.625s;
-o-animation-delay: -0.625s;
animation-delay: -0.625s;
}
.la-ball-spin-clockwise > div:nth-child(4) {
top: 81.8198051534%;
left: 81.8198051534%;
-webkit-animation-delay: -0.5s;
-moz-animation-delay: -0.5s;
-o-animation-delay: -0.5s;
animation-delay: -0.5s;
}
.la-ball-spin-clockwise > div:nth-child(5) {
top: 94.9999999966%;
left: 50.0000000005%;
-webkit-animation-delay: -0.375s;
-moz-animation-delay: -0.375s;
-o-animation-delay: -0.375s;
animation-delay: -0.375s;
}
.la-ball-spin-clockwise > div:nth-child(6) {
top: 81.8198046966%;
left: 18.1801949248%;
-webkit-animation-delay: -0.25s;
-moz-animation-delay: -0.25s;
-o-animation-delay: -0.25s;
animation-delay: -0.25s;
}
.la-ball-spin-clockwise > div:nth-child(7) {
top: 49.9999750815%;
left: 5.0000051215%;
-webkit-animation-delay: -0.125s;
-moz-animation-delay: -0.125s;
-o-animation-delay: -0.125s;
animation-delay: -0.125s;
}
.la-ball-spin-clockwise > div:nth-child(8) {
top: 18.179464974%;
left: 18.1803700518%;
-webkit-animation-delay: 0s;
-moz-animation-delay: 0s;
-o-animation-delay: 0s;
animation-delay: 0s;
}
.la-ball-spin-clockwise.la-sm {
width: 16px;
height: 16px;
}
.la-ball-spin-clockwise.la-sm > div {
width: 4px;
height: 4px;
margin-top: -2px;
margin-left: -2px;
}
.la-ball-spin-clockwise.la-2x {
width: 64px;
height: 64px;
}
.la-ball-spin-clockwise.la-2x > div {
width: 16px;
height: 16px;
margin-top: -8px;
margin-left: -8px;
}
.la-ball-spin-clockwise.la-3x {
width: 96px;
height: 96px;
}
.la-ball-spin-clockwise.la-3x > div {
width: 24px;
height: 24px;
margin-top: -12px;
margin-left: -12px;
}
/*
* Animation
*/
@-webkit-keyframes ball-spin-clockwise {
0%,
100% {
opacity: 1;
-webkit-transform: scale(1);
transform: scale(1);
}
20% {
opacity: 1;
}
80% {
opacity: 0;
-webkit-transform: scale(0);
transform: scale(0);
}
}
@-moz-keyframes ball-spin-clockwise {
0%,
100% {
opacity: 1;
-moz-transform: scale(1);
transform: scale(1);
}
20% {
opacity: 1;
}
80% {
opacity: 0;
-moz-transform: scale(0);
transform: scale(0);
}
}
@-o-keyframes ball-spin-clockwise {
0%,
100% {
opacity: 1;
-o-transform: scale(1);
transform: scale(1);
}
20% {
opacity: 1;
}
80% {
opacity: 0;
-o-transform: scale(0);
transform: scale(0);
}
}
@keyframes ball-spin-clockwise {
0%,
100% {
opacity: 1;
-webkit-transform: scale(1);
-moz-transform: scale(1);
-o-transform: scale(1);
transform: scale(1);
}
20% {
opacity: 1;
}
80% {
opacity: 0;
-webkit-transform: scale(0);
-moz-transform: scale(0);
-o-transform: scale(0);
transform: scale(0);
}
}
</style>