From 953bde5a42072a0255670012cc45867e395d5410 Mon Sep 17 00:00:00 2001
From: advplyr <advplyr@protonmail.com>
Date: Sun, 18 Jun 2023 13:31:38 -0500
Subject: [PATCH] Update:Add epub ereader settings and table of contents

---
 components/modals/FullscreenModal.vue |   7 +-
 components/readers/EpubReader.vue     |  59 +++++++++++-
 components/readers/Reader.vue         | 131 ++++++++++++++++++++++++--
 components/ui/RangeInput.vue          |  90 ++++++++++++++++++
 components/ui/ToggleBtns.vue          |  85 +++++++++++++++++
 plugins/init.client.js                |   1 +
 6 files changed, 357 insertions(+), 16 deletions(-)
 create mode 100644 components/ui/RangeInput.vue
 create mode 100644 components/ui/ToggleBtns.vue

diff --git a/components/modals/FullscreenModal.vue b/components/modals/FullscreenModal.vue
index 3443c5ae..86cc7c59 100644
--- a/components/modals/FullscreenModal.vue
+++ b/components/modals/FullscreenModal.vue
@@ -1,6 +1,6 @@
 <template>
-  <div ref="wrapper" class="modal modal-bg w-screen h-screen fixed top-0 left-0 flex items-center justify-center z-50">
-    <div ref="content" class="relative text-white bg-bg h-full w-full">
+  <div ref="wrapper" class="modal modal-bg w-screen fixed bottom-0 left-0 flex items-center justify-center z-50" :class="halfScreen ? 'h-[50vh]' : 'h-screen'" @click.stop @touchstart.stop @touchend.stop>
+    <div ref="content" class="relative text-white h-full w-full bg-bg">
       <slot />
     </div>
   </div>
@@ -10,7 +10,8 @@
 export default {
   props: {
     value: Boolean,
-    processing: Boolean
+    processing: Boolean,
+    halfScreen: Boolean
   },
   data() {
     return {
diff --git a/components/readers/EpubReader.vue b/components/readers/EpubReader.vue
index b9b461fc..cb25c1b4 100644
--- a/components/readers/EpubReader.vue
+++ b/components/readers/EpubReader.vue
@@ -2,7 +2,7 @@
   <div id="epub-frame" class="w-full">
     <div id="viewer" class="h-full w-full"></div>
 
-    <div class="fixed left-0 h-8 w-full bg-primary px-4 flex items-center text-white/80" :style="{ bottom: playerLibraryItemId ? '120px' : '0px' }">
+    <div class="fixed left-0 h-8 w-full px-4 flex items-center" :class="isLightTheme ? 'bg-white text-black' : 'bg-primary text-white/80'" :style="{ bottom: playerLibraryItemId ? '120px' : '0px' }">
       <div class="flex-grow" />
       <p class="text-xs">{{ progress }}%</p>
     </div>
@@ -28,7 +28,12 @@ export default {
       book: null,
       /** @type {ePub.Rendition} */
       rendition: null,
-      progress: 0
+      progress: 0,
+      ereaderSettings: {
+        theme: 'dark',
+        fontScale: 100,
+        lineSpacing: 115
+      }
     }
   },
   watch: {
@@ -89,9 +94,46 @@ export default {
       // Validate ebookLocation is an epubcfi
       if (!String(this.userItemProgress.ebookLocation).startsWith('epubcfi')) return null
       return this.userItemProgress.ebookLocation
+    },
+    isLightTheme() {
+      return this.ereaderSettings.theme === 'light'
+    },
+    themeRules() {
+      const isDark = this.ereaderSettings.theme === 'dark'
+      const fontColor = isDark ? '#fff' : '#000'
+      const backgroundColor = isDark ? 'rgb(35 35 35)' : 'rgb(255, 255, 255)'
+
+      const lineSpacing = this.ereaderSettings.lineSpacing / 100
+
+      const fontScale = this.ereaderSettings.fontScale / 100
+
+      return {
+        '*': {
+          color: `${fontColor}!important`,
+          'background-color': `${backgroundColor}!important`,
+          'line-height': lineSpacing * fontScale + 'rem!important'
+        },
+        a: {
+          color: `${fontColor}!important`
+        }
+      }
     }
   },
   methods: {
+    updateSettings(settings) {
+      this.ereaderSettings = settings
+
+      if (!this.rendition) return
+
+      this.applyTheme()
+
+      const fontScale = settings.fontScale || 100
+      this.rendition.themes.fontSize(`${fontScale}%`)
+      this.rendition.spread(settings.spread || 'auto')
+    },
+    goToChapter(href) {
+      return this.rendition?.display(href)
+    },
     updateHeight() {
       if (this.rendition && this.rendition.resize) {
         this.rendition.resize(window.innerWidth, window.innerHeight - this.readerHeightOffset)
@@ -262,9 +304,6 @@ export default {
         flow: 'paginated'
       })
 
-      // load style
-      reader.rendition.themes.default({ '*': { color: '#fff!important', 'background-color': 'rgb(35 35 35)!important' }, a: { color: '#fff!important' } })
-
       reader.book.ready.then(() => {
         // load saved progress
         // when not checking spine first uncaught exception is thrown
@@ -274,6 +313,10 @@ export default {
           reader.rendition.display(reader.book.locations.start)
         }
 
+        reader.rendition.on('rendered', () => {
+          this.applyTheme()
+        })
+
         // set up event listeners
         reader.rendition.on('relocated', reader.relocated)
 
@@ -298,6 +341,12 @@ export default {
           })
         }
       })
+    },
+    applyTheme() {
+      if (!this.rendition) return
+      this.rendition.getContents().forEach((c) => {
+        c.addStylesheetRules(this.themeRules)
+      })
     }
   },
   beforeDestroy() {
diff --git a/components/readers/Reader.vue b/components/readers/Reader.vue
index a5fb8db4..8b6ffd10 100644
--- a/components/readers/Reader.vue
+++ b/components/readers/Reader.vue
@@ -1,18 +1,81 @@
 <template>
-  <div v-if="show" class="fixed top-0 left-0 right-0 layout-wrapper w-full bg-primary z-40 pt-8" :class="{ 'reader-player-open': !!playerLibraryItemId }">
-    <div class="h-28 pt-8 w-full bg-bg px-2 fixed top-0 left-0 z-30 transition-transform" :class="showingToolbar ? 'translate-y-0' : '-translate-y-28'" @touchstart.stop @mousedown.stop @touchend.stop @mouseup.stop>
+  <div v-if="show" :data-theme="ereaderTheme" class="group fixed top-0 left-0 right-0 layout-wrapper w-full z-40 pt-8 data-[theme=dark]:bg-primary data-[theme=dark]:text-white data-[theme=light]:bg-white data-[theme=light]:text-black" :class="{ 'reader-player-open': !!playerLibraryItemId }">
+    <!-- toolbar -->
+    <div class="h-32 pt-10 w-full px-2 fixed top-0 left-0 z-30 transition-transform bg-bg text-white" :class="showingToolbar ? 'translate-y-0' : '-translate-y-32'" @touchstart.stop @mousedown.stop @touchend.stop @mouseup.stop>
       <div class="flex items-center mb-2">
         <button type="button" class="inline-flex mx-2" @click.stop="show = false"><span class="material-icons-outlined text-3xl text-white">chevron_left</span></button>
         <div class="flex-grow" />
-        <button v-if="isComic" type="button" class="inline-flex mx-2" @click.stop="clickTOCBtn"><span class="material-icons-outlined text-2xl text-white">format_list_bulleted</span></button>
-        <!-- <button v-if="isEpub" type="button" class="inline-flex mx-2" @click.stop="clickSettingsBtn"><span class="material-icons text-2xl text-white">settings</span></button> -->
+        <button v-if="isComic || isEpub" type="button" class="inline-flex mx-2" @click.stop="clickTOCBtn"><span class="material-icons-outlined text-2xl text-white">format_list_bulleted</span></button>
+        <button v-if="isEpub" type="button" class="inline-flex mx-2" @click.stop="clickSettingsBtn"><span class="material-icons text-2xl text-white">settings</span></button>
         <button v-if="comicHasMetadata" type="button" class="inline-flex mx-2" @click.stop="clickMetadataBtn"><span class="material-icons text-2xl text-white">more</span></button>
       </div>
 
       <p class="text-center truncate">{{ title }}</p>
     </div>
 
-    <component v-if="readerComponentName" ref="readerComponent" :is="readerComponentName" :url="ebookUrl" :library-item="selectedLibraryItem" :is-local="isLocal" :keep-progress="keepProgress" @touchstart="touchstart" @touchend="touchend" @loaded="readerLoaded" />
+    <!-- ereader -->
+    <component v-if="readerComponentName" ref="readerComponent" :is="readerComponentName" :url="ebookUrl" :library-item="selectedLibraryItem" :is-local="isLocal" :keep-progress="keepProgress" @touchstart="touchstart" @touchend="touchend" @loaded="readerLoaded" @hook:mounted="readerMounted" />
+
+    <!-- table of contents modal -->
+    <modals-fullscreen-modal v-model="showTOCModal" :theme="ereaderTheme">
+      <div class="flex items-end justify-between h-20 px-4 pb-2">
+        <h1 class="text-lg">Table of Contents</h1>
+        <button class="flex" @click.stop="showTOCModal = false">
+          <span class="material-icons">close</span>
+        </button>
+      </div>
+
+      <!-- chapters list -->
+      <div class="w-full overflow-y-auto overflow-x-hidden h-full max-h-[calc(100vh-85px)]">
+        <div class="w-full h-full px-4">
+          <ul>
+            <li v-for="chapter in chapters" :key="chapter.id" class="py-1">
+              <a :href="chapter.href" class="opacity-80 hover:opacity-100" @click.prevent="goToChapter(chapter.href)">{{ chapter.label }}</a>
+              <ul v-if="chapter.subitems.length">
+                <li v-for="subchapter in chapter.subitems" :key="subchapter.id" class="py-1 pl-4">
+                  <a :href="subchapter.href" class="opacity-80 hover:opacity-100" @click.prevent="goToChapter(subchapter.href)">{{ subchapter.label }}</a>
+                </li>
+              </ul>
+            </li>
+          </ul>
+          <div v-if="!chapters.length" class="flex h-full items-center justify-center">
+            <p class="text-xl">{{ 'No Chapters' }}</p>
+          </div>
+        </div>
+      </div>
+    </modals-fullscreen-modal>
+
+    <!-- ereader settings modal -->
+    <modals-fullscreen-modal v-model="showSettingsModal" :theme="ereaderTheme" half-screen>
+      <div class="flex items-end justify-between h-20 px-4 pb-2 mb-8">
+        <h1 class="text-lg">Ereader Settings</h1>
+        <button class="flex" @click="showSettingsModal = false">
+          <span class="material-icons">close</span>
+        </button>
+      </div>
+      <div class="w-full overflow-y-auto overflow-x-hidden h-full max-h-[calc(100vh-85px)]">
+        <div class="w-full h-full px-4">
+          <div class="flex items-center mb-8">
+            <div class="w-32">
+              <p class="text-base">Theme:</p>
+            </div>
+            <ui-toggle-btns v-model="ereaderSettings.theme" :items="themeItems" @input="settingsUpdated" />
+          </div>
+          <div class="flex items-center mb-8">
+            <div class="w-32">
+              <p class="text-base">Font scale:</p>
+            </div>
+            <ui-range-input v-model="ereaderSettings.fontScale" :min="5" :max="300" :step="5" input-width="180px" @input="settingsUpdated" />
+          </div>
+          <div class="flex items-center mb-8">
+            <div class="w-32">
+              <p class="text-base">Line spacing:</p>
+            </div>
+            <ui-range-input v-model="ereaderSettings.lineSpacing" :min="100" :max="300" :step="5" input-width="180px" @input="settingsUpdated" />
+          </div>
+        </div>
+      </div>
+    </modals-fullscreen-modal>
   </div>
 </template>
 
@@ -32,7 +95,12 @@ export default {
       showTOCModal: false,
       showSettingsModal: false,
       comicHasMetadata: false,
-      chapters: []
+      chapters: [],
+      ereaderSettings: {
+        theme: 'dark',
+        fontScale: 100,
+        lineSpacing: 115
+      }
     }
   },
   watch: {
@@ -70,6 +138,22 @@ export default {
     mediaMetadata() {
       return this.media?.metadata || {}
     },
+    ereaderTheme() {
+      if (this.isEpub) return this.ereaderSettings.theme
+      return 'dark'
+    },
+    themeItems() {
+      return [
+        {
+          text: 'Dark',
+          value: 'dark'
+        },
+        {
+          text: 'Light',
+          value: 'light'
+        }
+      ]
+    },
     readerComponentName() {
       if (this.ebookType === 'epub') return 'readers-epub-reader'
       else if (this.ebookType === 'mobi') return 'readers-mobi-reader'
@@ -140,6 +224,19 @@ export default {
     }
   },
   methods: {
+    settingsUpdated() {
+      this.$refs.readerComponent?.updateSettings?.(this.ereaderSettings)
+      localStorage.setItem('ereaderSettings', JSON.stringify(this.ereaderSettings))
+    },
+    goToChapter(href) {
+      this.showTOCModal = false
+      this.$refs.readerComponent?.goToChapter(href)
+    },
+    readerMounted() {
+      if (this.isEpub) {
+        this.loadEreaderSettings()
+      }
+    },
     readerLoaded(data) {
       if (this.isComic) {
         this.comicHasMetadata = data.hasMetadata
@@ -149,6 +246,7 @@ export default {
       this.$refs.readerComponent?.clickShowInfoMenu()
     },
     clickTOCBtn() {
+      this.hideToolbar()
       if (this.isComic) {
         this.$refs.readerComponent?.clickShowPageMenu?.()
       } else {
@@ -157,6 +255,7 @@ export default {
       }
     },
     clickSettingsBtn() {
+      this.hideToolbar()
       this.showSettingsModal = true
     },
     next() {
@@ -181,7 +280,11 @@ export default {
       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) {
-        this.toggleToolbar()
+        if (this.showSettingsModal) {
+          this.showSettingsModal = false
+        } else {
+          this.toggleToolbar()
+        }
         return
       }
 
@@ -213,7 +316,7 @@ export default {
       if (this.touchstartTime && Date.now() - this.touchstartTime < 250) {
         return
       }
-
+      console.log('touchstart', e)
       this.touchstartX = e.touches[0].screenX
       this.touchstartY = e.touches[0].screenY
       this.touchstartTime = Date.now()
@@ -223,6 +326,7 @@ export default {
       if (this.touchIdentifier !== e.changedTouches[0].identifier) {
         return
       }
+      console.log('touchend', e)
       this.touchendX = e.changedTouches[0].screenX
       this.touchendY = e.changedTouches[0].screenY
       this.handleGesture()
@@ -230,6 +334,17 @@ export default {
     closeEvt() {
       this.show = false
     },
+    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)
+      }
+    },
     registerListeners() {
       this.$eventBus.$on('close-ebook', this.closeEvt)
       document.body.addEventListener('touchstart', this.touchstart)
diff --git a/components/ui/RangeInput.vue b/components/ui/RangeInput.vue
new file mode 100644
index 00000000..caee5fa0
--- /dev/null
+++ b/components/ui/RangeInput.vue
@@ -0,0 +1,90 @@
+<template>
+  <div class="inline-flex">
+    <input v-model="input" type="range" :min="min" :max="max" :step="step" :style="{ width: inputWidth }" />
+
+    <p class="text-xs ml-2">{{ input }}%</p>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    value: [String, Number],
+    min: Number,
+    max: Number,
+    step: Number,
+    inputWidth: {
+      type: String,
+      default: 'unset'
+    }
+  },
+  data() {
+    return {}
+  },
+  computed: {
+    input: {
+      get() {
+        return this.value
+      },
+      set(val) {
+        this.$emit('input', val)
+      }
+    }
+  },
+  methods: {},
+  mounted() {}
+}
+</script>
+
+<style scoped>
+input[type='range'] {
+  -webkit-appearance: none;
+  appearance: none;
+  background: transparent;
+  cursor: pointer;
+}
+input[type='range']:focus {
+  outline: none;
+}
+
+/* chromium */
+input[type='range']::-webkit-slider-runnable-track {
+  background-color: rgb(0 0 0 / 0.25);
+  border-radius: 9999px;
+  height: 0.75rem;
+}
+input[type='range']::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  appearance: none;
+  margin-top: -0.25rem;
+  border-radius: 9999px;
+  background-color: rgb(255 255 255 / 0.7);
+  height: 1.25rem;
+  width: 1.25rem;
+}
+input[type='range']:focus::-webkit-slider-thumb {
+  border: 1px solid #6b6b6b;
+  outline: 3px solid #6b6b6b;
+  outline-offset: 0.125rem;
+}
+
+/* firefox */
+input[type='range']::-moz-range-track {
+  background-color: rgb(0 0 0 / 0.25);
+  border-radius: 9999px;
+  height: 0.75rem;
+}
+input[type='range']::-moz-range-thumb {
+  border: none;
+  border-radius: 9999px;
+  margin-top: -0.25rem;
+  background-color: rgb(255 255 255 / 0.7);
+  height: 1.25rem;
+  width: 1.25rem;
+}
+input[type='range']:focus::-moz-range-thumb {
+  border: 1px solid #6b6b6b;
+  outline: 3px solid #6b6b6b;
+  outline-offset: 0.125rem;
+}
+</style>
\ No newline at end of file
diff --git a/components/ui/ToggleBtns.vue b/components/ui/ToggleBtns.vue
new file mode 100644
index 00000000..2312b26f
--- /dev/null
+++ b/components/ui/ToggleBtns.vue
@@ -0,0 +1,85 @@
+<template>
+  <div class="inline-flex toggle-btn-wrapper shadow-md">
+    <button v-for="item in items" :key="item.value" type="button" class="toggle-btn outline-none relative border border-gray-600 px-4 py-1" :class="{ selected: item.value === value }" @click.stop="clickBtn(item.value)">
+      {{ item.text }}
+    </button>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    value: String,
+    /**
+     * [{ "text", "", "value": "" }]
+     */
+    items: {
+      type: Array,
+      default: Object
+    }
+  },
+  data() {
+    return {}
+  },
+  computed: {},
+  methods: {
+    clickBtn(value) {
+      this.$emit('input', value)
+    }
+  },
+  mounted() {}
+}
+</script>
+
+<style scoped>
+.toggle-btn-wrapper .toggle-btn:first-child {
+  border-top-left-radius: 0.375rem /* 6px */;
+  border-bottom-left-radius: 0.375rem /* 6px */;
+}
+.toggle-btn-wrapper .toggle-btn:last-child {
+  border-top-right-radius: 0.375rem /* 6px */;
+  border-bottom-right-radius: 0.375rem /* 6px */;
+}
+.toggle-btn-wrapper .toggle-btn:first-child::before {
+  border-top-left-radius: 0.375rem /* 6px */;
+  border-bottom-left-radius: 0.375rem /* 6px */;
+}
+.toggle-btn-wrapper .toggle-btn:last-child::before {
+  border-top-right-radius: 0.375rem /* 6px */;
+  border-bottom-right-radius: 0.375rem /* 6px */;
+}
+
+.toggle-btn-wrapper .toggle-btn:not(:first-child) {
+  margin-left: -1px;
+}
+
+.toggle-btn::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(255, 255, 255, 0);
+  transition: all 0.1s ease-in-out;
+}
+.toggle-btn:hover:not(:disabled)::before {
+  background-color: rgba(255, 255, 255, 0.1);
+}
+.toggle-btn:hover:not(:disabled) {
+  color: white;
+}
+
+.toggle-btn {
+  color: rgba(255, 255, 255, 0.75);
+}
+.toggle-btn.selected {
+  color: white;
+}
+.toggle-btn.selected::before {
+  background-color: rgba(255, 255, 255, 0.1);
+}
+button.toggle-btn:disabled::before {
+  background-color: rgba(0, 0, 0, 0.2);
+}
+</style>
\ No newline at end of file
diff --git a/plugins/init.client.js b/plugins/init.client.js
index ac03891c..26063b9e 100644
--- a/plugins/init.client.js
+++ b/plugins/init.client.js
@@ -17,6 +17,7 @@ if (Capacitor.getPlatform() != 'web') {
 }
 
 Vue.prototype.$showHideStatusBar = async (show) => {
+  if (Capacitor.getPlatform() === 'web') return
   if (show) {
     StatusBar.show()
   } else {