├── .gitignore ├── .npmrc ├── .prettierignore ├── .prettierrc ├── LICENSE ├── README.md ├── docs └── screenshot.png ├── eslint.config.js ├── package-lock.json ├── package.json ├── src ├── app.d.ts ├── app.html ├── lib │ ├── components │ │ ├── Popover.svelte │ │ ├── ThemePicker.svelte │ │ └── Topbar.svelte │ ├── db.ts │ ├── services │ │ └── parse.ts │ ├── stores.ts │ ├── types.ts │ └── utils.ts └── routes │ ├── +error.svelte │ ├── +layout.svelte │ ├── +page.svelte │ ├── BookPreview.svelte │ └── reading │ └── [[slug]] │ ├── +page.svelte │ ├── +page.ts │ ├── ReaderSettings.svelte │ ├── TocNode.svelte │ └── reader.ts ├── static ├── app.css └── favicon.png ├── svelte.config.js ├── tsconfig.json └── vite.config.ts /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules 3 | /build 4 | /.svelte-kit 5 | /package 6 | .env 7 | .env.* 8 | !.env.example 9 | vite.config.js.timestamp-* 10 | vite.config.ts.timestamp-* 11 | -------------------------------------------------------------------------------- /.npmrc: -------------------------------------------------------------------------------- 1 | engine-strict=true 2 | resolution-mode=highest 3 | -------------------------------------------------------------------------------- /.prettierignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules 3 | /build 4 | /.svelte-kit 5 | /package 6 | .env 7 | .env.* 8 | !.env.example 9 | 10 | # Ignore files for PNPM, NPM and YARN 11 | pnpm-lock.yaml 12 | package-lock.json 13 | yarn.lock 14 | -------------------------------------------------------------------------------- /.prettierrc: -------------------------------------------------------------------------------- 1 | { 2 | "useTabs": true, 3 | "tabWidth": 2, 4 | "semi": true, 5 | "singleQuote": true, 6 | "trailingComma": "none", 7 | "bracketSpacing": true, 8 | "bracketSameLine": true, 9 | "arrowParens": "always", 10 | "svelteStrictMode": false, 11 | "printWidth": 100, 12 | "plugins": ["prettier-plugin-svelte"], 13 | "overrides": [{ "files": "*.svelte", "options": { "parser": "svelte" } }] 14 | } 15 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Essence Reader 2 | 3 | ![Screenshot](docs/screenshot.png) 4 | Essence Reader is a web app that allows you to read ebooks in the epub format directly in the browser. 5 | Written with Svelte and TypeScript. 6 | 7 | Try it out: [Essence Reader](https://vecopotryx.github.io/essence-reader/). 8 | -------------------------------------------------------------------------------- /docs/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Vecopotryx/essence-reader/277ef23d040551df30f213907cee0dc532678dd0/docs/screenshot.png -------------------------------------------------------------------------------- /eslint.config.js: -------------------------------------------------------------------------------- 1 | import js from '@eslint/js'; 2 | import ts from 'typescript-eslint'; 3 | import svelte from 'eslint-plugin-svelte'; 4 | import prettier from 'eslint-config-prettier'; 5 | import globals from 'globals'; 6 | 7 | /** @type {import('eslint').Linter.FlatConfig[]} */ 8 | export default [ 9 | js.configs.recommended, 10 | ...ts.configs.recommended, 11 | ...svelte.configs['flat/recommended'], 12 | prettier, 13 | ...svelte.configs['flat/prettier'], 14 | { 15 | languageOptions: { 16 | globals: { 17 | ...globals.browser, 18 | ...globals.node 19 | } 20 | } 21 | }, 22 | { 23 | files: ['**/*.svelte'], 24 | languageOptions: { 25 | parserOptions: { 26 | parser: ts.parser 27 | } 28 | } 29 | }, 30 | { 31 | ignores: ['build/', '.svelte-kit/', 'dist/'] 32 | } 33 | ]; 34 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "essence-reader", 3 | "version": "2.0.0", 4 | "private": true, 5 | "type": "module", 6 | "scripts": { 7 | "dev": "vite dev", 8 | "build": "vite build", 9 | "preview": "vite preview", 10 | "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json", 11 | "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch", 12 | "lint": "prettier --check --plugin prettier-plugin-svelte . && eslint .", 13 | "format": "prettier --write --plugin prettier-plugin-svelte ." 14 | }, 15 | "dependencies": { 16 | "idb": "^8.0.0", 17 | "unzipit": "^1.4.3" 18 | }, 19 | "devDependencies": { 20 | "@iconify-json/carbon": "^1.2.4", 21 | "@sveltejs/adapter-auto": "^3.3.1", 22 | "@sveltejs/adapter-cloudflare": "^4.7.4", 23 | "@sveltejs/kit": "^2.7.3", 24 | "@sveltejs/vite-plugin-svelte": "^4.0.0", 25 | "@types/eslint": "^9.6.1", 26 | "eslint": "^9.13.0", 27 | "eslint-config-prettier": "^9.1.0", 28 | "eslint-plugin-svelte": "^2.46.0", 29 | "globals": "^15.11.0", 30 | "prettier": "^3.3.3", 31 | "prettier-plugin-svelte": "^3.2.7", 32 | "svelte": "^5.1.3", 33 | "svelte-check": "^4.0.5", 34 | "typescript": "^5.6.3", 35 | "typescript-eslint": "^8.11.0", 36 | "unplugin-icons": "^0.19.3", 37 | "vite": "^5.4.10" 38 | } 39 | } 40 | -------------------------------------------------------------------------------- /src/app.d.ts: -------------------------------------------------------------------------------- 1 | // See https://kit.svelte.dev/docs/types#app 2 | // for information about these interfaces 3 | declare global { 4 | namespace App { 5 | // interface Error {} 6 | // interface Locals {} 7 | // interface PageData {} 8 | // interface Platform {} 9 | } 10 | } 11 | 12 | export {}; 13 | -------------------------------------------------------------------------------- /src/app.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 11 | 20 | %sveltekit.head% 21 | 22 | 23 | 24 |
%sveltekit.body%
25 | 26 | 27 | -------------------------------------------------------------------------------- /src/lib/components/Popover.svelte: -------------------------------------------------------------------------------- 1 | 28 | 29 | 32 | 33 | {#if visible} 34 |
35 | 36 | 37 |
38 | {@render children()} 39 |
40 |
41 | {/if} 42 | 43 | 78 | -------------------------------------------------------------------------------- /src/lib/components/ThemePicker.svelte: -------------------------------------------------------------------------------- 1 | 17 | 18 |
19 | Theme 20 |
21 | {#each themes as theme} 22 | 28 | {/each} 29 |
30 |
31 | 32 | 74 | -------------------------------------------------------------------------------- /src/lib/components/Topbar.svelte: -------------------------------------------------------------------------------- 1 | 15 | 16 |
17 |
18 | {#if leftbar} 19 | {@render leftbar()} 20 | {/if} 21 |
22 | 23 |
24 | {#if toptext} 25 | {@render toptext()} 26 | {/if} 27 |
28 | 29 |
30 | {#if rightbar} 31 | {@render rightbar()} 32 | {/if} 33 |
34 |
35 | 36 | 117 | -------------------------------------------------------------------------------- /src/lib/db.ts: -------------------------------------------------------------------------------- 1 | import { openDB, deleteDB } from 'idb'; 2 | import type { Book, Metadata } from '$lib/types'; 3 | 4 | const DB_NAME = 'bookDB'; 5 | const DB_VERSION = 1; 6 | const BOOKS_STORE = 'books'; 7 | const METAS_STORE = 'metas'; 8 | 9 | export const openBookDB = openDB(DB_NAME, DB_VERSION, { 10 | upgrade(db) { 11 | db.createObjectStore(BOOKS_STORE, { keyPath: 'id', autoIncrement: true }); 12 | db.createObjectStore(METAS_STORE, { keyPath: 'id' }); 13 | } 14 | }); 15 | 16 | export const addBook = async (meta: Metadata, book: Book) => { 17 | try { 18 | const db = await openBookDB; 19 | const tx = db.transaction([BOOKS_STORE, METAS_STORE], 'readwrite'); 20 | const booksStore = tx.objectStore(BOOKS_STORE); 21 | const metasStore = tx.objectStore(METAS_STORE); 22 | 23 | const foundBook = (await metasStore.getAll()).find((b) => b.title === meta.title); 24 | if (foundBook) return foundBook.id; // Don't save duplicate books 25 | 26 | const bookID = await booksStore.add(book); 27 | 28 | meta.id = Number(bookID); 29 | await metasStore.add(meta); 30 | 31 | await tx.done; 32 | 33 | return bookID; 34 | } catch (error) { 35 | console.error('Failed to add book:', error); 36 | return -1; 37 | } 38 | }; 39 | 40 | export const getAllMetas = async (): Promise => { 41 | try { 42 | const store = (await openBookDB).transaction(METAS_STORE).objectStore(METAS_STORE); 43 | return await store.getAll(); 44 | } catch (error) { 45 | console.error('Failed to get all books:', error); 46 | if ( 47 | (error as Error).message.includes('version') || 48 | (error as Error).message.includes('store name') 49 | ) { 50 | // This is primarily such that if an old (higher version) 51 | // database is found (like one from Dexie), 52 | // a new one can be created and allow the app to continue. 53 | console.log('Deleting old database'); 54 | await deleteDB(DB_NAME); 55 | location.reload(); 56 | } 57 | return []; 58 | } 59 | }; 60 | -------------------------------------------------------------------------------- /src/lib/services/parse.ts: -------------------------------------------------------------------------------- 1 | import { unzip } from 'unzipit'; 2 | import type { Metadata, Book, TableOfContentsItem } from '$lib/types'; 3 | import { relativeToAbs, removeHash } from '$lib/utils'; 4 | const domParser = new DOMParser(); 5 | 6 | const parseOpf = (opfContent: string, opfPath: string) => { 7 | const opfDocument = domParser.parseFromString(opfContent, 'application/xml'); 8 | 9 | const metadataElement = opfDocument.querySelector('metadata'); 10 | const manifestElement = opfDocument.querySelector('manifest'); 11 | const spineElement = opfDocument.querySelector('spine'); 12 | if (!metadataElement) throw new Error('Metadata element not found in OPF'); 13 | if (!manifestElement) throw new Error('Manifest element not found in OPF'); 14 | if (!spineElement) throw new Error('Spine element not found in OPF'); 15 | 16 | const { title, author } = parseMeta(metadataElement); 17 | const coverPath = getCoverPath(manifestElement, metadataElement, opfPath); 18 | const manifestItems = parseManifest(manifestElement, opfPath); 19 | const spine = parseSpine(spineElement, manifestItems); 20 | const ncxPath = getNcxPath(manifestElement, opfPath); 21 | 22 | return { title, author, coverPath, spine, ncxPath }; 23 | }; 24 | 25 | const getNcxPath = (manifest: Element, opfPath: string): string | undefined => { 26 | const ncxItem = manifest.querySelector("item[media-type='application/x-dtbncx+xml']"); 27 | const href = ncxItem?.getAttribute('href'); 28 | if (!href) return undefined; 29 | return relativeToAbs(href, opfPath); 30 | }; 31 | 32 | const getCoverPath = (manifest: Element, meta: Element, opfPath: string): string | undefined => { 33 | const coverId = meta.querySelector("[name='cover']")?.getAttribute('content'); 34 | 35 | const coverItem = manifest.querySelector(`item[id='${coverId}']`); 36 | const href = coverItem?.getAttribute('href'); 37 | if (!href) { 38 | // Try epub 3 cover image if epub 2 cover image not found 39 | const coverItem = manifest.querySelector("item[properties='cover-image']"); 40 | const href = coverItem?.getAttribute('href'); 41 | if (!href) return undefined; 42 | return relativeToAbs(href, opfPath); 43 | } 44 | return relativeToAbs(href, opfPath); 45 | }; 46 | 47 | const parseMeta = (meta: Element): { title: string; author: string[] } => { 48 | const titleElement: Element | null = meta.querySelector('title'); 49 | const title: string = titleElement?.textContent || ''; 50 | 51 | const authorElements: NodeListOf = meta.querySelectorAll('creator'); 52 | const author: string[] = Array.from(authorElements).map((v: Element) => v.textContent || ''); 53 | 54 | return { title, author }; 55 | }; 56 | 57 | const parseManifest = (manifest: Element, opfPath: string): Map => { 58 | const manifestItems: Map = new Map(); 59 | 60 | for (const item of manifest.children) { 61 | const id = item.getAttribute('id'); 62 | const href = item.getAttribute('href'); 63 | if (!(id && href)) continue; 64 | manifestItems.set(id, relativeToAbs(href, opfPath)); 65 | } 66 | 67 | return manifestItems; 68 | }; 69 | 70 | const parseSpine = (spine: Element, manifestItems: Map): string[] => 71 | Array.from(spine.children).map((x) => manifestItems.get(x.getAttribute('idref') ?? '') ?? ''); 72 | 73 | const TocRecursive = (navPoint: Element, spine: string[], ncxPath: string): TableOfContentsItem => { 74 | const title = navPoint.querySelector('text')?.textContent || ''; 75 | 76 | const contentElement = navPoint.querySelector('content'); 77 | const src = contentElement?.getAttribute('src'); 78 | 79 | const href = src ? relativeToAbs(src, ncxPath) : ''; 80 | 81 | const index = spine.indexOf(removeHash(href)); 82 | 83 | const navPoints = Array.from(navPoint.children).filter((x) => x.tagName === 'navPoint'); 84 | const children = navPoints.map((x) => TocRecursive(x, spine, ncxPath)); 85 | 86 | return { title, href, index, children: children.length > 0 ? children : undefined }; 87 | }; 88 | 89 | const parseToc = (ncx: string, ncxPath: string, spine: string[]): TableOfContentsItem[] => { 90 | const TOC: TableOfContentsItem[] = []; 91 | const navMap = domParser.parseFromString(ncx, 'application/xml').querySelector('navMap'); 92 | if (!navMap) return []; 93 | 94 | for (const navPoint of navMap.children) { 95 | TOC.push(TocRecursive(navPoint, spine, ncxPath)); 96 | } 97 | return TOC; 98 | }; 99 | 100 | const parseContainer = (containerFileContent: string): string => { 101 | const containerDocument = domParser.parseFromString(containerFileContent, 'text/xml'); 102 | 103 | const opfPath = containerDocument.querySelector('rootfile')?.getAttribute('full-path'); 104 | 105 | if (!opfPath) throw new Error('OPF file not found in container.xml'); 106 | 107 | return opfPath; 108 | }; 109 | 110 | export const parseEpub = async (epub: File): Promise<{ meta: Metadata; book: Book }> => { 111 | try { 112 | const { entries } = await unzip(epub); 113 | 114 | const container = await entries['META-INF/container.xml'].text(); 115 | const opfPath = parseContainer(container); 116 | const opf = await entries[opfPath].text(); 117 | 118 | const { title, author, coverPath, spine, ncxPath } = parseOpf(opf, opfPath); 119 | 120 | let cover: Blob | undefined; 121 | if (coverPath) { 122 | cover = await entries[coverPath].blob(); 123 | } 124 | 125 | let toc: TableOfContentsItem[] = []; 126 | if (ncxPath) { 127 | // Allowing for books without a ncx file 128 | const ncx = await entries[ncxPath].text(); 129 | toc = parseToc(ncx, ncxPath, spine); 130 | } 131 | 132 | const meta: Metadata = { title, author, cover, progress: 0, length: spine.length - 1 }; 133 | const book: Book = { spine, toc, file: epub }; 134 | 135 | return { meta, book }; 136 | } catch (e) { 137 | console.error(e); 138 | if (e instanceof Error) { 139 | throw new Error(`Error parsing EPUB file - ${e.message}`); 140 | } 141 | throw new Error('Error parsing EPUB file'); 142 | } 143 | }; 144 | -------------------------------------------------------------------------------- /src/lib/stores.ts: -------------------------------------------------------------------------------- 1 | import { get, writable } from 'svelte/store'; 2 | import type { Book, Metadata } from '$lib/types'; 3 | import { browser } from '$app/environment'; 4 | 5 | const loadedStore = writable<{ meta: Metadata; book: Book }>(undefined); 6 | 7 | export const getLoaded = () => { 8 | return get(loadedStore); 9 | }; 10 | 11 | export const setLoaded = (object: { meta: Metadata; book: Book }) => { 12 | loadedStore.set(object); 13 | }; 14 | 15 | export const shouldSaveStore = writable(true); 16 | 17 | if (browser && localStorage.getItem('shouldSave') !== null) { 18 | try { 19 | shouldSaveStore.set(JSON.parse(localStorage.getItem('shouldSave') as string)); 20 | } catch { 21 | localStorage.removeItem('shouldSave'); 22 | } 23 | } 24 | 25 | shouldSaveStore.subscribe((value) => { 26 | if (browser) { 27 | localStorage.setItem('shouldSave', JSON.stringify(value)); 28 | } 29 | }); 30 | -------------------------------------------------------------------------------- /src/lib/types.ts: -------------------------------------------------------------------------------- 1 | export type Book = { 2 | id?: number; 3 | spine: string[]; 4 | toc: TableOfContentsItem[]; 5 | file: File; 6 | }; 7 | 8 | export type Metadata = { 9 | id?: number; 10 | title: string; 11 | author: string[]; 12 | cover: Blob | undefined; 13 | progress: number; 14 | length: number; 15 | }; 16 | 17 | export type TableOfContentsItem = { 18 | title: string; 19 | href: string; 20 | index: number; 21 | children?: TableOfContentsItem[]; 22 | }; 23 | -------------------------------------------------------------------------------- /src/lib/utils.ts: -------------------------------------------------------------------------------- 1 | import { addBook } from '$lib/db'; 2 | import { goto } from '$app/navigation'; 3 | import { setLoaded, shouldSaveStore } from '$lib/stores'; 4 | import { parseEpub } from './services/parse'; 5 | import { page } from '$app/stores'; 6 | import { get } from 'svelte/store'; 7 | 8 | export const readFile = async (file: File) => { 9 | try { 10 | if (!file.type.includes('epub') || !file.type.includes('zip')) { 11 | throw new Error('File is not of type .epub or .zip'); 12 | } 13 | const { meta, book } = await parseEpub(file); 14 | let id = ''; 15 | 16 | if (get(shouldSaveStore) && file.size < 30000000) { 17 | id = await addBook(meta, book); 18 | } 19 | 20 | setLoaded({ meta, book }); 21 | 22 | if (get(page).route.id?.includes('reading')) { 23 | // Not an ideal solution, but makes sure that reading page is 24 | // reloaded with new book when already on reading page. 25 | await goto(`/`); 26 | } 27 | goto(`/reading/${id}`); 28 | } catch (e) { 29 | alert(e); 30 | } 31 | }; 32 | 33 | export const relativeToAbs = (href: string, relativeTo: string) => { 34 | const url = new URL(href, `http://localhost/${relativeTo}`); 35 | return decodeURI(url.pathname.slice(1)); 36 | }; 37 | 38 | export const removeHash = (path: string) => { 39 | const hashIndex = path.indexOf('#'); 40 | return hashIndex === -1 ? path : path.slice(0, hashIndex); 41 | }; 42 | -------------------------------------------------------------------------------- /src/routes/+error.svelte: -------------------------------------------------------------------------------- 1 | 5 | 6 | 7 | Error {$page.status}: {$page.error?.message} 8 | 9 | 10 |
11 |

Error {$page.status}

12 |

{$page.error?.message}

13 | Go back to library 14 |
15 | 16 | 45 | -------------------------------------------------------------------------------- /src/routes/+layout.svelte: -------------------------------------------------------------------------------- 1 | 38 | 39 | {@render children()} 40 | -------------------------------------------------------------------------------- /src/routes/+page.svelte: -------------------------------------------------------------------------------- 1 | 69 | 70 | 71 | Essence Reader 72 | 73 | 74 | 75 | {#snippet toptext()} 76 |

Essence Reader

77 | {/snippet} 78 | {#snippet rightbar()} 79 | 80 | {#snippet icon()} 81 | 82 | {/snippet} 83 |
84 | Library settings 85 | 86 | By default, imported books are stored locally across sessions in your browser. 87 |
When disabled, new books are not saved. 88 |
89 | 94 | 98 | 99 |
100 |
101 | {/snippet} 102 |
103 | 104 |
105 | {#if bookList} 106 | {#each bookList as meta (meta.id)} 107 | 113 | {/each} 114 | {/if} 115 | 116 | 121 |
122 | 123 | 212 | -------------------------------------------------------------------------------- /src/routes/BookPreview.svelte: -------------------------------------------------------------------------------- 1 | 8 | 9 |
10 | 18 | 19 | cover 20 | 21 |
22 |

{meta.author}

23 |

{meta.title}

24 |

{meta.progress} / {meta.length}

25 |
26 |
27 | 28 | 79 | -------------------------------------------------------------------------------- /src/routes/reading/[[slug]]/+page.svelte: -------------------------------------------------------------------------------- 1 | 207 | 208 | 209 | 210 | {meta.title + ' - ' + meta.author} 211 | 212 | 213 | 214 |
215 | 100}> 216 | {#snippet leftbar()} 217 | 218 | 219 | 220 | {/snippet} 221 | 222 | {#snippet toptext()} 223 |

224 | {meta.title} - 225 | {meta.author} 226 |

227 |

{section}/{meta.length}

228 | {/snippet} 229 | 230 | {#snippet rightbar()} 231 | {#if previousJumps.length !== 0} 232 | 245 | {/if} 246 | 247 | {#snippet icon()} 248 | 249 | {/snippet} 250 | {#each book.toc as tocitem} 251 | 252 | {/each} 253 | 254 | 255 | {#snippet icon()} 256 | 257 | {/snippet} 258 | 259 | 260 | 261 | 262 | {/snippet} 263 |
264 |
267 |
272 |
273 |
274 |
275 | 276 | 277 | 278 | 344 | -------------------------------------------------------------------------------- /src/routes/reading/[[slug]]/+page.ts: -------------------------------------------------------------------------------- 1 | export const ssr = false; 2 | import type { PageLoad } from './$types'; 3 | import { getLoaded, setLoaded } from '$lib/stores'; 4 | import { error } from '@sveltejs/kit'; 5 | 6 | export const load = (async ({ params }) => { 7 | const loaded = getLoaded(); 8 | 9 | if (loaded && (!params.slug || loaded.meta.id === Number(params.slug))) { 10 | return loaded; 11 | } 12 | 13 | if (!params.slug) error(400, 'No book loaded and no book ID provided'); 14 | 15 | const slugID = Number(params.slug); 16 | 17 | if (isNaN(slugID) || !Number.isInteger(slugID) || slugID <= 0) { 18 | error(400, 'Invalid or non-numeric book ID provided'); 19 | } 20 | 21 | const db = await (await import('$lib/db')).openBookDB; 22 | 23 | const tx = db.transaction(['metas', 'books'], 'readonly'); 24 | const meta = await tx.objectStore('metas').get(slugID); 25 | const book = await tx.objectStore('books').get(slugID); 26 | await tx.done; 27 | 28 | if (!book) error(404, `Book with ID ${slugID} not found in your library`); 29 | 30 | const stored = { meta, book }; 31 | setLoaded(stored); 32 | 33 | return stored; 34 | }) satisfies PageLoad; 35 | -------------------------------------------------------------------------------- /src/routes/reading/[[slug]]/ReaderSettings.svelte: -------------------------------------------------------------------------------- 1 | 22 | 23 |
24 |
25 | Mode 26 | 30 | 34 |
35 | 36 | {#if settings.paginated} 37 |
38 | Animations 39 | 45 |
46 | {/if} 47 | 48 | 49 |
50 | Font 51 | 62 | 63 | 74 |
75 |
76 | 77 | 153 | -------------------------------------------------------------------------------- /src/routes/reading/[[slug]]/TocNode.svelte: -------------------------------------------------------------------------------- 1 | 32 | 33 |
34 | {#if tocitem.children} 35 | 36 | {/if} 37 | 40 |
41 | {#if expanded && tocitem.children} 42 |
43 | {#each tocitem.children as tocsection} 44 | 45 | {/each} 46 |
47 | {/if} 48 | 49 | 99 | -------------------------------------------------------------------------------- /src/routes/reading/[[slug]]/reader.ts: -------------------------------------------------------------------------------- 1 | import { relativeToAbs } from '$lib/utils'; 2 | import type { ZipInfo } from 'unzipit'; 3 | 4 | const injectStyles = (styles: string[]) => { 5 | // TODO: Keep track of stylesheets and only update if changed 6 | const fragment = document.createDocumentFragment(); 7 | 8 | document.head.querySelectorAll('.essence-reader').forEach((styleE) => styleE.remove()); 9 | 10 | styles.forEach((stylesheet) => { 11 | const styleE = document.createElement('style'); 12 | styleE.innerText = nestCSSSelectors(stylesheet); 13 | styleE.className = 'essence-reader'; 14 | fragment.appendChild(styleE); 15 | }); 16 | 17 | document.head.appendChild(fragment); 18 | }; 19 | 20 | const processCSS = async ( 21 | css: string, 22 | cssPath: string, 23 | entries: ZipInfo['entries'] 24 | ): Promise => { 25 | const urlRegex = /url\(([^)]+)\)/g; 26 | 27 | const matches = css.matchAll(urlRegex); 28 | for (const [match, relPath] of matches) { 29 | const filename = relativeToAbs(relPath, cssPath); 30 | try { 31 | const blob = await entries[filename].blob(); 32 | const url = URL.createObjectURL(blob); 33 | css = css.replace(match, `url("${url}")`); 34 | } catch (e) { 35 | console.error(e); 36 | continue; 37 | } 38 | } 39 | 40 | return css; 41 | }; 42 | 43 | const nestCSSSelectors = (css: string): string => 44 | css.replace(/([^\r\n,{}]+)(,(?=[^}]*{)|\s*{)/g, '#container $1$2'); 45 | 46 | const domParser = new DOMParser(); 47 | 48 | export const assembleChapter = async ( 49 | chapterPath: string, 50 | entries: ZipInfo['entries'], 51 | jumpTo: (href: string) => void 52 | ): Promise => { 53 | const html = await entries[chapterPath].text(); 54 | 55 | let newHTML = domParser.parseFromString(html, 'application/xhtml+xml'); 56 | 57 | const errorNode = newHTML.querySelector('parsererror'); 58 | if (errorNode) { 59 | // Try parsing as HTML if error when parsing as XHTML. 60 | // Can solve issues with mismatched tags 61 | newHTML = domParser.parseFromString(html, 'text/html'); 62 | } 63 | 64 | const styles: string[] = []; 65 | for (const e of newHTML.head.querySelectorAll('link[rel="stylesheet"], style')) { 66 | if (e.tagName.toLowerCase() === 'link') { 67 | const href = e.getAttribute('href'); 68 | if (!href) continue; 69 | const filename = relativeToAbs(href, chapterPath); 70 | const css = await entries[filename].text(); 71 | styles.push(await processCSS(css, filename, entries)); 72 | } else { 73 | styles.push(e.innerHTML); 74 | } 75 | } 76 | 77 | injectStyles(styles); 78 | 79 | // Process all URLs in the chapter 80 | for (const e of newHTML.body.querySelectorAll('[src], svg image, a[href]')) { 81 | if (e.tagName.toLowerCase() === 'a') { 82 | const href = e.getAttribute('href'); 83 | if (href && !href.includes('http')) { 84 | e.addEventListener('click', (event) => { 85 | event.preventDefault(); 86 | const absHref = relativeToAbs(href, chapterPath); 87 | jumpTo(absHref); // Internal links within the book 88 | }); 89 | } else { 90 | e.setAttribute('target', '_blank'); // External links open in a new tab 91 | } 92 | continue; 93 | } 94 | 95 | const attribute = e.tagName.toLowerCase() === 'img' ? 'src' : 'xlink:href'; 96 | const url = e.getAttribute(attribute); 97 | 98 | if (url && !url.includes('http')) { 99 | const filename = relativeToAbs(url, chapterPath); 100 | const blob = await entries[filename].blob(); 101 | e.setAttribute(attribute, URL.createObjectURL(blob)); 102 | 103 | // Fixes some SVGs not playing nicely 104 | if (e.parentElement?.tagName.toLowerCase() === 'svg') { 105 | e.parentElement?.setAttribute('height', 'auto'); 106 | e.parentElement?.setAttribute('width', 'auto'); 107 | } 108 | } 109 | } 110 | 111 | return newHTML.body; 112 | }; 113 | -------------------------------------------------------------------------------- /static/app.css: -------------------------------------------------------------------------------- 1 | html, 2 | body { 3 | position: relative; 4 | width: 100%; 5 | } 6 | 7 | body { 8 | margin: 0; 9 | padding: 0; 10 | box-sizing: border-box; 11 | background: rgb(var(--primary-bg)); 12 | color: rgb(var(--primary-color)); 13 | transition: 14 | background-color 0.5s, 15 | color 0.5s; 16 | font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 17 | 'Helvetica Neue', sans-serif; 18 | } 19 | 20 | #container a, 21 | #container p, 22 | #container span { 23 | color: var(--primary-color) !important; 24 | font-family: 'Times New Roman', Times, serif; /* Default if epub doesn't specify */ 25 | } 26 | 27 | :root { 28 | --primary-color: 0, 0, 0; 29 | --primary-bg: 255, 255, 255; 30 | --secondary-bg: 249, 249, 249; 31 | --highlight-bg: 0, 0, 0; 32 | } 33 | 34 | [data-theme='dark'] { 35 | --primary-color: 233, 233, 233; 36 | --primary-bg: 3, 32, 56; 37 | --secondary-bg: 7, 37, 62; 38 | --highlight-bg: 255,255,255; 39 | } 40 | 41 | [data-theme='warm'] { 42 | --primary-color: 0, 0, 0; 43 | --primary-bg: 246, 228, 189; 44 | --secondary-bg: 251, 238, 210; 45 | --highlight-bg: 0, 0, 0; 46 | 47 | } 48 | 49 | [data-theme='black'] { 50 | --primary-color: 233, 233, 233; 51 | --primary-bg: 0, 0, 0; 52 | --secondary-bg: 28, 32, 34; 53 | --highlight-bg: 255,255,255; 54 | 55 | } 56 | -------------------------------------------------------------------------------- /static/favicon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Vecopotryx/essence-reader/277ef23d040551df30f213907cee0dc532678dd0/static/favicon.png -------------------------------------------------------------------------------- /svelte.config.js: -------------------------------------------------------------------------------- 1 | import adapter from '@sveltejs/adapter-cloudflare'; 2 | import { vitePreprocess } from '@sveltejs/vite-plugin-svelte'; 3 | 4 | /** @type {import('@sveltejs/kit').Config} */ 5 | const config = { 6 | // Consult https://kit.svelte.dev/docs/integrations#preprocessors 7 | // for more information about preprocessors 8 | preprocess: [vitePreprocess()], 9 | 10 | kit: { 11 | // adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list. 12 | // If your environment is not supported or you settled on a specific environment, switch out the adapter. 13 | // See https://kit.svelte.dev/docs/adapters for more information about adapters. 14 | adapter: adapter({ 15 | routes: { 16 | include: ['/*'], 17 | exclude: [''] 18 | } 19 | }) 20 | } 21 | }; 22 | 23 | export default config; 24 | -------------------------------------------------------------------------------- /tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "./.svelte-kit/tsconfig.json", 3 | "compilerOptions": { 4 | "allowJs": true, 5 | "checkJs": true, 6 | "esModuleInterop": true, 7 | "forceConsistentCasingInFileNames": true, 8 | "resolveJsonModule": true, 9 | "skipLibCheck": true, 10 | "sourceMap": true, 11 | "strict": true, 12 | "types": ["unplugin-icons/types/svelte"] 13 | } 14 | // Path aliases are handled by https://kit.svelte.dev/docs/configuration#alias 15 | // 16 | // If you want to overwrite includes/excludes, make sure to copy over the relevant includes/excludes 17 | // from the referenced tsconfig.json - TypeScript does not merge them in 18 | } 19 | -------------------------------------------------------------------------------- /vite.config.ts: -------------------------------------------------------------------------------- 1 | import { sveltekit } from '@sveltejs/kit/vite'; 2 | import { defineConfig } from 'vite'; 3 | import Icons from 'unplugin-icons/vite'; 4 | export default defineConfig({ 5 | plugins: [ 6 | sveltekit(), 7 | Icons({ 8 | compiler: 'svelte', 9 | autoInstall: true 10 | }) 11 | ] 12 | }); 13 | --------------------------------------------------------------------------------