audiobookshelf/client/components/readers/Reader.vue

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<template>
<div v-if="show" id="reader" :data-theme="ereaderTheme" class="group absolute top-0 left-0 w-full z-60 data-[theme=dark]:bg-primary data-[theme=dark]:text-white data-[theme=light]:bg-white data-[theme=light]:text-black" :class="{ 'reader-player-open': !!streamLibraryItem }">
<div class="absolute top-4 left-4 z-20 flex items-center">
<button v-if="isEpub" @click="toggleToC" type="button" aria-label="Table of contents menu" class="inline-flex opacity-80 hover:opacity-100">
<span class="material-icons text-2xl">menu</span>
</button>
<button v-if="hasSettings" @click="openSettings" type="button" aria-label="Ereader settings" class="mx-4 inline-flex opacity-80 hover:opacity-100">
<span class="material-icons text-1.5xl">settings</span>
</button>
</div>
<div class="absolute top-4 left-1/2 transform -translate-x-1/2">
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<h1 :data-type="ebookType" class="text-lg sm:text-xl md:text-2xl mb-1 data-[type=comic]:hidden" style="line-height: 1.15; font-weight: 100">
<span style="font-weight: 600">{{ abTitle }}</span>
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<span v-if="abAuthor" class="hidden md:inline"> </span>
<span v-if="abAuthor" class="hidden md:inline">{{ abAuthor }}</span>
</h1>
</div>
<div class="absolute top-4 right-4 z-20">
<button @click="close" type="button" aria-label="Close ereader" class="inline-flex opacity-80 hover:opacity-100">
<span class="material-icons text-2xl">close</span>
</button>
</div>
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<component v-if="componentName" ref="readerComponent" :is="componentName" :library-item="selectedLibraryItem" :player-open="!!streamLibraryItem" :keep-progress="keepProgress" :file-id="ebookFileId" @touchstart="touchstart" @touchend="touchend" @hook:mounted="readerMounted" />
<!-- TOC side nav -->
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<div v-if="tocOpen" class="w-full h-full overflow-y-scroll absolute inset-0 bg-black/20 z-20" @click.stop.prevent="toggleToC"></div>
<div v-if="isEpub" class="w-96 h-full max-h-full absolute top-0 left-0 shadow-xl transition-transform z-30 group-data-[theme=dark]:bg-primary group-data-[theme=dark]:text-white group-data-[theme=light]:bg-white group-data-[theme=light]:text-black" :class="tocOpen ? 'translate-x-0' : '-translate-x-96'" @click.stop.prevent="toggleToC">
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<div class="flex flex-col p-4 h-full">
<div class="flex items-center mb-2">
<button @click.stop.prevent="toggleToC" type="button" aria-label="Close table of contents" class="inline-flex opacity-80 hover:opacity-100">
<span class="material-icons text-2xl">arrow_back</span>
</button>
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<p class="text-lg font-semibold ml-2">{{ $strings.HeaderTableOfContents }}</p>
</div>
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<form @submit.prevent="searchBook" @click.stop.prevent>
<ui-text-input clearable ref="input" @submit="searchBook" v-model="searchQuery" :placeholder="$strings.PlaceholderSearch" class="h-8 w-full text-sm flex mb-2" />
</form>
<div class="overflow-y-auto">
<div v-if="isSearching && !this.searchResults.length" class="w-full h-40 justify-center">
<p class="text-center text-xl py-4">{{ $strings.MessageNoResults }}</p>
</div>
<ul>
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<li v-for="chapter in isSearching ? this.searchResults : chapters" :key="chapter.id" class="py-1">
<a :href="chapter.href" class="opacity-80 hover:opacity-100" @click.prevent="$refs.readerComponent.goToChapter(chapter.href)">{{ chapter.title }}</a>
<div v-for="searchResults in chapter.searchResults" :key="searchResults.cfi" class="text-sm py-1 pl-4">
<a :href="searchResults.cfi" class="opacity-50 hover:opacity-100" @click.prevent="$refs.readerComponent.goToChapter(searchResults.cfi)">{{ searchResults.excerpt }}</a>
</div>
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<ul v-if="chapter.subitems.length">
<li v-for="subchapter in chapter.subitems" :key="subchapter.id" class="py-1 pl-4">
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<a :href="subchapter.href" class="opacity-80 hover:opacity-100" @click.prevent="$refs.readerComponent.goToChapter(subchapter.href)">{{ subchapter.title }}</a>
<div v-for="subChapterSearchResults in subchapter.searchResults" :key="subChapterSearchResults.cfi" class="text-sm py-1 pl-4">
<a :href="subChapterSearchResults.cfi" class="opacity-50 hover:opacity-100" @click.prevent="$refs.readerComponent.goToChapter(subChapterSearchResults.cfi)">{{ subChapterSearchResults.excerpt }}</a>
</div>
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</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
<!-- ereader settings modal -->
<modals-modal v-model="showSettings" name="ereader-settings-modal" :width="500" :height="'unset'" :processing="false">
<template #outer>
<div class="absolute top-0 left-0 p-5 w-3/4 overflow-hidden">
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<p class="text-xl md:text-3xl text-white truncate">{{ $strings.HeaderEreaderSettings }}</p>
</div>
</template>
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<div class="px-2 py-4 md:p-8 w-full text-base rounded-lg bg-bg shadow-lg border border-black-300 relative overflow-x-hidden overflow-y-auto" style="max-height: 80vh">
<div class="flex items-center mb-4">
<div class="w-40">
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<p class="text-lg">{{ $strings.LabelTheme }}:</p>
</div>
<ui-toggle-btns v-model="ereaderSettings.theme" :items="themeItems.theme" @input="settingsUpdated" />
</div>
<div class="flex items-center mb-4">
<div class="w-40">
<p class="text-lg">{{ $strings.LabelFontFamily }}:</p>
</div>
<ui-toggle-btns v-model="ereaderSettings.font" :items="themeItems.font" @input="settingsUpdated" />
</div>
<div class="flex items-center mb-4">
<div class="w-40">
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<p class="text-lg">{{ $strings.LabelFontScale }}:</p>
</div>
<ui-range-input v-model="ereaderSettings.fontScale" :min="5" :max="300" :step="5" @input="settingsUpdated" />
</div>
<div class="flex items-center mb-4">
<div class="w-40">
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<p class="text-lg">{{ $strings.LabelLineSpacing }}:</p>
</div>
<ui-range-input v-model="ereaderSettings.lineSpacing" :min="100" :max="300" :step="5" @input="settingsUpdated" />
</div>
<div class="flex items-center">
<div class="w-40">
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<p class="text-lg">{{ $strings.LabelLayout }}:</p>
</div>
<ui-toggle-btns v-model="ereaderSettings.spread" :items="spreadItems" @input="settingsUpdated" />
</div>
</div>
</modals-modal>
</div>
</template>
<script>
export default {
data() {
return {
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touchstartX: 0,
touchstartY: 0,
touchendX: 0,
touchendY: 0,
touchstartTime: 0,
touchIdentifier: null,
chapters: [],
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isSearching: false,
searchResults: [],
searchQuery: '',
tocOpen: false,
showSettings: false,
ereaderSettings: {
theme: 'dark',
font: 'serif',
fontScale: 100,
lineSpacing: 115,
spread: 'auto'
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}
}
},
watch: {
show(newVal) {
if (newVal) {
this.init()
}
}
},
computed: {
show: {
get() {
return this.$store.state.showEReader
},
set(val) {
this.$store.commit('setShowEReader', val)
}
},
ereaderTheme() {
if (this.isEpub) return this.ereaderSettings.theme
return 'dark'
},
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spreadItems() {
return [
{
text: this.$strings.LabelLayoutSinglePage,
value: 'none'
},
{
text: this.$strings.LabelLayoutSplitPage,
value: 'auto'
}
]
},
themeItems() {
return {
theme: [
{
text: this.$strings.LabelThemeDark,
value: 'dark'
},
{
text: this.$strings.LabelThemeLight,
value: 'light'
}
],
font: [
{
text: 'Sans',
value: 'sans-serif',
},
{
text: 'Serif',
value: 'serif',
}
]
}
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},
componentName() {
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if (this.ebookType === 'epub') return 'readers-epub-reader'
else if (this.ebookType === 'mobi') return 'readers-mobi-reader'
else if (this.ebookType === 'pdf') return 'readers-pdf-reader'
else if (this.ebookType === 'comic') return 'readers-comic-reader'
return null
},
streamLibraryItem() {
return this.$store.state.streamLibraryItem
},
hasSettings() {
return this.isEpub
},
abTitle() {
return this.mediaMetadata.title
},
abAuthor() {
return this.mediaMetadata.authorName
},
selectedLibraryItem() {
return this.$store.state.selectedLibraryItem || {}
},
media() {
return this.selectedLibraryItem.media || {}
},
mediaMetadata() {
return this.media.metadata || {}
},
libraryId() {
return this.selectedLibraryItem.libraryId
},
folderId() {
return this.selectedLibraryItem.folderId
},
ebookFile() {
// ebook file id is passed when reading a supplementary ebook
if (this.ebookFileId) {
return this.selectedLibraryItem.libraryFiles.find((lf) => lf.ino === this.ebookFileId)
}
return this.media.ebookFile
},
ebookFormat() {
if (!this.ebookFile) return null
// Use file extension for supplementary ebook
if (!this.ebookFile.ebookFormat) {
return this.ebookFile.metadata.ext.toLowerCase().slice(1)
}
return this.ebookFile.ebookFormat
},
ebookType() {
if (this.isMobi) return 'mobi'
else if (this.isEpub) return 'epub'
else if (this.isPdf) return 'pdf'
else if (this.isComic) return 'comic'
return null
},
isEpub() {
return this.ebookFormat == 'epub'
},
isMobi() {
return this.ebookFormat == 'mobi' || this.ebookFormat == 'azw3'
},
isPdf() {
return this.ebookFormat == 'pdf'
},
isComic() {
return this.ebookFormat == 'cbz' || this.ebookFormat == 'cbr'
},
userToken() {
return this.$store.getters['user/getToken']
},
keepProgress() {
return this.$store.state.ereaderKeepProgress
},
ebookFileId() {
return this.$store.state.ereaderFileId
},
isDarkTheme() {
return this.ereaderSettings.theme === 'dark'
}
},
methods: {
readerMounted() {
if (this.isEpub) {
this.loadEreaderSettings()
}
},
settingsUpdated() {
this.$refs.readerComponent?.updateSettings?.(this.ereaderSettings)
localStorage.setItem('ereaderSettings', JSON.stringify(this.ereaderSettings))
},
toggleToC() {
this.tocOpen = !this.tocOpen
this.chapters = this.$refs.readerComponent.chapters
},
openSettings() {
this.showSettings = true
},
hotkey(action) {
if (!this.$refs.readerComponent) return
if (action === this.$hotkeys.EReader.NEXT_PAGE) {
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this.next()
} else if (action === this.$hotkeys.EReader.PREV_PAGE) {
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this.prev()
} else if (action === this.$hotkeys.EReader.CLOSE) {
this.close()
}
},
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async searchBook() {
if (this.searchQuery.length > 1) {
this.searchResults = await this.$refs.readerComponent.searchBook(this.searchQuery)
this.isSearching = true
} else {
this.isSearching = false
this.searchResults = []
}
},
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next() {
if (this.$refs.readerComponent?.next) this.$refs.readerComponent.next()
},
prev() {
if (this.$refs.readerComponent?.prev) this.$refs.readerComponent.prev()
},
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handleGesture() {
// Touch must be less than 1s. Must be > 60px drag and X distance > Y distance
const touchTimeMs = Date.now() - this.touchstartTime
if (touchTimeMs >= 1000) {
console.log('Touch too long', touchTimeMs)
return
}
const touchDistanceX = Math.abs(this.touchendX - this.touchstartX)
const touchDistanceY = Math.abs(this.touchendY - this.touchstartY)
const touchDistance = Math.sqrt(Math.pow(this.touchstartX - this.touchendX, 2) + Math.pow(this.touchstartY - this.touchendY, 2))
if (touchDistance < 60) {
return
}
if (touchDistanceX < 60 || touchDistanceY > touchDistanceX) {
return
}
if (this.touchendX < this.touchstartX) {
this.next()
}
if (this.touchendX > this.touchstartX) {
this.prev()
}
},
touchstart(e) {
// Ignore rapid touch
if (this.touchstartTime && Date.now() - this.touchstartTime < 250) {
return
}
this.touchstartX = e.touches[0].screenX
this.touchstartY = e.touches[0].screenY
this.touchstartTime = Date.now()
this.touchIdentifier = e.touches[0].identifier
},
touchend(e) {
if (this.touchIdentifier !== e.changedTouches[0].identifier) {
return
}
this.touchendX = e.changedTouches[0].screenX
this.touchendY = e.changedTouches[0].screenY
this.handleGesture()
},
registerListeners() {
this.$eventBus.$on('reader-hotkey', this.hotkey)
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document.body.addEventListener('touchstart', this.touchstart)
document.body.addEventListener('touchend', this.touchend)
},
unregisterListeners() {
this.$eventBus.$off('reader-hotkey', this.hotkey)
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document.body.removeEventListener('touchstart', this.touchstart)
document.body.removeEventListener('touchend', this.touchend)
},
loadEreaderSettings() {
try {
const settings = localStorage.getItem('ereaderSettings')
if (settings) {
this.ereaderSettings = JSON.parse(settings)
this.settingsUpdated()
}
} catch (error) {
console.error('Failed to load ereader settings', error)
}
},
init() {
this.registerListeners()
},
close() {
this.unregisterListeners()
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this.isSearching = false
this.searchQuery = ''
this.show = false
}
},
mounted() {
if (this.show) this.init()
},
beforeDestroy() {
this.unregisterListeners()
}
}
</script>
<style>
#reader {
height: 100%;
}
#reader.reader-player-open {
height: calc(100% - 164px);
}
@media (max-height: 400px) {
#reader.reader-player-open {
height: 100%;
}
}
</style>