Module state 

Editor State Interface

Provides a complete state query interface for the editor, used for frontend rendering and state synchronization.

Overview

The state interface layer exposes the editor’s internal state to the frontend in a structured, immutable manner. It supports:

• State Queries: Retrieve document, cursor, viewport, and other state information
• Version Tracking: Track state changes through version numbers
• Change Notifications: Subscribe to state change events
• Viewport Management: Obtain rendering data for visible regions

Example

use editor_core::{EditorStateManager, StateChangeType};

let mut manager = EditorStateManager::new("Hello, World!", 80);

// Query document state
let doc_state = manager.get_document_state();
println!("Line count: {}", doc_state.line_count);

// Subscribe to state changes
manager.subscribe(|change| {
    println!("State changed: {:?}", change.change_type);
});

// Modify document and mark changes
manager.editor_mut().piece_table.insert(0, "New: ");
manager.mark_modified(StateChangeType::DocumentModified);

Structs

CursorState

Cursor state

DocumentState

Document state

EditorState

Complete editor state snapshot

EditorStateManager

Editor state manager

FoldingState

Folding state

StateChange

State change record

StyleState

Style state

UndoRedoState

Undo/redo stack state

ViewportState

Viewport state

Enums

StateChangeType

State change type

Type Aliases

StateChangeCallback

State change callback function type