Merge pull request #348 from ldgallery/p_viewer_epub

viewer: render EPUB ebooks

8 files changed, 231 insertions, 1 deletions

diff --git a/viewer/src/@types/gallery.ts b/viewer/src/@types/gallery.ts
index 8c0f177..6960de2 100644
--- a/viewer/src/@types/gallery.ts
+++ b/viewer/src/@types/gallery.ts
@@ -64,6 +64,9 @@ export interface MarkdownProperties extends Downloadable {
 export interface PDFProperties extends Downloadable {
   type: ItemType.PDF;
 }
+export interface EPUBProperties extends Downloadable {
+  type: ItemType.EPUB;
+}
 export interface VideoProperties extends Downloadable {
   type: ItemType.VIDEO;
 }
@@ -107,6 +110,9 @@ export interface MarkdownItem extends Item {
 export interface PDFItem extends Item {
   properties: PDFProperties;
 }
+export interface EPUBItem extends Item {
+  properties: EPUBProperties;
+}
 export interface VideoItem extends Item {
   properties: VideoProperties;
 }
diff --git a/viewer/src/@types/itemType.ts b/viewer/src/@types/itemType.ts
index ecab05c..8528728 100644
--- a/viewer/src/@types/itemType.ts
+++ b/viewer/src/@types/itemType.ts
@@ -23,6 +23,7 @@ export enum ItemType {
   PLAINTEXT = 'plaintext',
   MARKDOWN = 'markdown',
   PDF = 'pdf',
+  EPUB = 'epub',
   VIDEO = 'video',
   AUDIO = 'audio',
   DIRECTORY = 'directory',
diff --git a/viewer/src/assets/scss/theme.scss b/viewer/src/assets/scss/theme.scss
index 63febbf..6622fa5 100644
--- a/viewer/src/assets/scss/theme.scss
+++ b/viewer/src/assets/scss/theme.scss
@@ -41,6 +41,8 @@ $dropdown-item-color: $palette-600;
 $dropdown-item-hover-color: $palette-500;
 $panel-top-bgcolor: $palette-800;
 $panel-top-txtcolor: $primary;
+$panel-bottom-bgcolor: $palette-800;
+$panel-bottom-txtcolor: $primary;
 $panel-left-bgcolor: $palette-800;
 $panel-left-txtcolor: $primary;
 $command-buttons-bgcolor: $palette-700;
@@ -55,6 +57,7 @@ $thumbnail-other-size: $body-line-height * 7em;
 $proposed-category-bgcolor: $palette-700;
 $viewer-text: $palette-000;
 $viewer-text-background: $palette-900;
+$viewer-epub-background: $palette-000;
 
 // Layout
 
diff --git a/viewer/src/locales/en.yml b/viewer/src/locales/en.yml
index 86ecd49..280f18b 100644
--- a/viewer/src/locales/en.yml
+++ b/viewer/src/locales/en.yml
@@ -15,6 +15,9 @@ directory:
   no-results: Empty directory
 download:
   download-file-fmt: Download {0}
+epubViewer:
+  previousSection: Previous section
+  nextSection: Next section
 gallery:
   resource-loading-error: Error loading resource
   unknown-resource: Resource not found
diff --git a/viewer/src/services/navigation.ts b/viewer/src/services/navigation.ts
index b2e807b..fb01169 100644
--- a/viewer/src/services/navigation.ts
+++ b/viewer/src/services/navigation.ts
@@ -19,7 +19,18 @@
 
 import { DirectoryItem, DownloadableItem, Item } from '@/@types/gallery';
 import { ItemType } from '@/@types/itemType';
-import { faFile, faFileAlt, faFileAudio, faFilePdf, faFileVideo, faFolder, faHome, faImage, IconDefinition } from '@fortawesome/free-solid-svg-icons';
+import {
+  faFile,
+  faFileAlt,
+  faFileAudio,
+  faFilePdf,
+  faBook,
+  faFileVideo,
+  faFolder,
+  faHome,
+  faImage,
+  IconDefinition,
+} from '@fortawesome/free-solid-svg-icons';
 import { isDirectory } from './itemGuards';
 
 const ICON_BY_TYPE: Record<ItemType, IconDefinition> = {
@@ -28,6 +39,7 @@ const ICON_BY_TYPE: Record<ItemType, IconDefinition> = {
   plaintext: faFileAlt,
   markdown: faFileAlt,
   pdf: faFilePdf,
+  epub: faBook,
   video: faFileVideo,
   audio: faFileAudio,
   other: faFile,
diff --git a/viewer/src/views/GalleryNavigation.vue b/viewer/src/views/GalleryNavigation.vue
index 0869aaf..b342c52 100644
--- a/viewer/src/views/GalleryNavigation.vue
+++ b/viewer/src/views/GalleryNavigation.vue
@@ -44,6 +44,7 @@ import { computedEager } from '@vueuse/shared';
 import { computed, watchEffect } from 'vue';
 import { useI18n } from 'vue-i18n';
 import GallerySearch from './GallerySearch.vue';
+import { EpubViewer } from './item_handlers/async';
 import AudioViewer from './item_handlers/AudioViewer.vue';
 import DirectoryViewer from './item_handlers/DirectoryViewer.vue';
 import DownloadViewer from './item_handlers/DownloadViewer.vue';
@@ -67,6 +68,7 @@ const COMPONENT_BY_TYPE: Record<ItemType, unknown> = {
   plaintext: PlainTextViewer,
   markdown: MarkdownViewer,
   pdf: PdfViewer,
+  epub: EpubViewer,
   video: VideoViewer,
   audio: AudioViewer,
   other: DownloadViewer,
diff --git a/viewer/src/views/item_handlers/async/AsyncEpubViewer.vue b/viewer/src/views/item_handlers/async/AsyncEpubViewer.vue
new file mode 100644
index 0000000..b5c0cb4
--- /dev/null
+++ b/viewer/src/views/item_handlers/async/AsyncEpubViewer.vue
@@ -0,0 +1,180 @@
+<!--
+-- ldgallery - A static generator which turns a collection of tagged
+--             pictures into a searchable web gallery.
+--
+-- Copyright (C) 2022  Pacien TRAN-GIRARD
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU Affero General Public License as
+-- published by the Free Software Foundation, either version 3 of the
+-- License, or (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Affero General Public License for more details.
+--
+-- You should have received a copy of the GNU Affero General Public License
+-- along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+<template>
+  <div :class="$style.container">
+    <div
+      ref="view"
+      :class="$style.epubView"
+      class="scrollbar"
+    />
+
+    <ul
+      v-if="prevSection || nextSection"
+      :class="$style.navBar"
+    >
+      <li>
+        <LdLink
+          v-if="prevSection"
+          @click="goToPrevSection"
+        >
+          <fa-icon
+            :icon="faSquareCaretLeft"
+            size="lg"
+            alt="«"
+          />
+          {{ prevSectionLabel }}
+        </LdLink>
+      </li>
+
+      <li>
+        {{ currSectionLabel }}
+      </li>
+
+      <li>
+        <LdLink
+          v-if="nextSection"
+          @click="goToNextSection"
+        >
+          {{ nextSectionLabel }}
+          <fa-icon
+            :icon="faSquareCaretRight"
+            size="lg"
+            alt="»"
+          />
+        </LdLink>
+      </li>
+    </ul>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { EPUBItem } from '@/@types/gallery';
+import { useItemResource } from '@/services/ui/ldItemResourceUrl';
+import { useUiStore } from '@/store/uiStore';
+import ePub, { Rendition } from 'epubjs';
+import { SpineItem } from 'epubjs/types/section';
+import { computed, PropType, Ref, ref, toRef, watch } from 'vue';