Module text_edit_core

Core module for text editing logic and state management in Tessera UI.

This module provides the foundational structures and functions for building text editing components, including text buffer management, selection and cursor handling, rendering logic, and keyboard event mapping. It is designed to be shared across UI components via Arc<RwLock<TextEditorState>>, enabling consistent and efficient text editing experiences.

Typical use cases include single-line and multi-line text editors, input fields, and any UI element requiring advanced text manipulation, selection, and IME support.

The module integrates with the Tessera component system and rendering pipelines, supporting selection highlighting, cursor blinking, clipboard operations, and extensible keyboard shortcuts.

Most applications should interact with TextEditorState for state management and text_edit_core() for rendering and layout within a component tree.

Structs

RectDef

Definition of a rectangular selection highlight Defines a rectangular region for text selection highlighting.

TextEditorState

Core text editing state, shared between components Core state for text editing, including content, selection, cursor, and interaction state.

Enums

ClickType

Types of mouse clicks Represents the type of mouse click detected in the editor.

Functions

map_key_event_to_action

Map keyboard events to text editing actions Maps a keyboard event to a list of text editing actions for the editor.

text_edit_core

Core text editing component for rendering text, selection, and cursor.