tornadofx_epub

public

master

AI Architecture

Trigger

User clicks 'Open File' button to select an EPUB file

Application Initialization

TriggerTornadoFX

Application Start

TornadoFX application launches and initializes the main application class, setting up the JavaFX runtime environment.

mainMyApp.start

tornadofx.App

src/main/kotlin/com/example/demo/app/MyApp.kt

Primary View Rendering

FrontendTornadoFX

Load Main View

The application instantiates and displays the MainView component, rendering the file selection interface with controls.

MainView.initMainView.root

tornadofx.View

src/main/kotlin/com/example/demo/view/MainView.kt

File Selection

FrontendJavaFX

Show File Chooser

User triggers file selection, opening a native file chooser dialog filtered for EPUB files.

chooseFile

tornadofx.chooseFilejavafx.stage.FileChooser

src/main/kotlin/com/example/demo/view/MainView.kt

EPUB Parsing

ProcessingEpublib

Parse EPUB File

The selected file is passed to epublib's EpubReader to parse the EPUB structure, extracting metadata, table of contents, and chapter resources.

EpubReader.readEpub

nl.siegmann.epublib.epub.EpubReader

src/main/kotlin/com/example/demo/view/MainView.kt

Extract Book Metadata

ProcessingEpublib

Retrieve Book Information

Extract title, author, and table of contents from the parsed EPUB book object for display and navigation purposes.

Book.getTitleBook.getMetadataBook.getTableOfContents

nl.siegmann.epublib.domain.Book

src/main/kotlin/com/example/demo/view/MainView.kt

View Transition

FrontendTornadoFX

Navigate to Reading View

The application transitions from MainView to ReadingView, passing the parsed book object and initializing the reading interface.

replaceWithReadingView.init

tornadofx.UIComponent.replaceWith

src/main/kotlin/com/example/demo/view/MainView.ktsrc/main/kotlin/com/example/demo/view/ReadingView.kt

Reading View Setup

FrontendJavaFX

Initialize WebView Component

Creates and configures a JavaFX WebView component for rendering HTML content, setting up the web engine and style properties.

webviewWebView.getEngine

javafx.scene.web.WebViewtornadofx.webview

src/main/kotlin/com/example/demo/view/ReadingView.kt

Load First Chapter

ProcessingEpublib

Retrieve Chapter Content

Fetches the first chapter's HTML content from the EPUB book object using the spine references.

Book.getSpineSpineReference.getResourceResource.getData

nl.siegmann.epublib.domain.Spinenl.siegmann.epublib.domain.Resource

src/main/kotlin/com/example/demo/view/ReadingView.kt

Apply Styling

FrontendJavaFX

Load CSS Stylesheet

Loads the webview.css stylesheet from resources to apply custom styling to the rendered EPUB content.

WebEngine.setUserStyleSheetLocationjavaClass.getResource

javafx.scene.web.WebEngine

src/main/kotlin/com/example/demo/view/ReadingView.ktsrc/main/resources/css/webview.css

Render Content

FrontendJavaFX

Display Chapter HTML

The WebView engine renders the chapter HTML content with applied CSS styling, displaying the text and images to the user.

WebEngine.loadContent

javafx.scene.web.WebEngine

src/main/kotlin/com/example/demo/view/ReadingView.kt

Navigation Setup

FrontendTornadoFX

Initialize Navigation Controls

Sets up previous/next chapter buttons and their event handlers for navigating through the book content.

button.actionsetOnAction

tornadofx.button

src/main/kotlin/com/example/demo/view/ReadingView.kt

Analyzed 2/18/2026, 9:41:25 PM