Struct TextEditorState

pub struct TextEditorState { /* private fields */ }

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

This struct manages the text buffer, selection, cursor position, focus, and user interaction state. It is designed to be shared between UI components via an Arc<RwLock<TextEditorState>>.

Example

use std::sync::Arc;
use parking_lot::RwLock;
use tessera_ui::Dp;
use tessera_ui_basic_components::text_edit_core::{TextEditorState, text_edit_core};

let state = Arc::new(RwLock::new(TextEditorState::new(Dp(16.0), None)));
// Use `text_edit_core(state.clone())` inside your component tree.

Implementations

impl TextEditorState

pub fn new(size: Dp, line_height: Option<Dp>) -> Self

Creates a new TextEditorState with the given font size and optional line height.

Arguments

• size - Font size in Dp.
• line_height - Optional line height in Dp. If None, uses 1.2x the font size.

Example

use tessera_ui::Dp;
use tessera_ui_basic_components::text_edit_core::TextEditorState;
let state = TextEditorState::new(Dp(16.0), None);

pub fn with_selection_color( size: Dp, line_height: Option<Dp>, selection_color: Color, ) -> Self

Creates a new TextEditorState with a custom selection highlight color.

Arguments

• size - Font size in Dp.
• line_height - Optional line height in Dp.
• selection_color - Color used for selection highlight.

pub fn line_height(&self) -> Px

Returns the line height in pixels.

pub fn text_data(&mut self, constraint: TextConstraint) -> TextData

Returns the current text buffer as TextData, applying the given layout constraints.

Arguments

• constraint - Layout constraints for text rendering.

pub fn focus_handler(&self) -> &Focus

Returns a reference to the internal focus handler.

pub fn focus_handler_mut(&mut self) -> &mut Focus

Returns a mutable reference to the internal focus handler.

pub fn editor(&self) -> &Editor<'static>

Returns a reference to the underlying glyphon::Editor.

pub fn editor_mut(&mut self) -> &mut Editor<'static>

Returns a mutable reference to the underlying glyphon::Editor.

pub fn bink_timer(&self) -> Instant

Returns the current blink timer instant (for cursor blinking).

pub fn update_bink_timer(&mut self)

Resets the blink timer to the current instant.

pub fn selection_color(&self) -> Color

Returns the current selection highlight color.

pub fn current_selection_rects(&self) -> &Vec<RectDef>

Returns a reference to the current selection rectangles.

pub fn set_selection_color(&mut self, color: Color)

Sets the selection highlight color.

Arguments

• color - The new selection color.

pub fn handle_click( &mut self, position: PxPosition, timestamp: Instant, ) -> ClickType

Handles a mouse click event and determines the click type (single, double, triple).

Used for text selection and word/line selection logic.

Arguments

• position - The position of the click in pixels.
• timestamp - The time the click occurred.

Returns

The detected ClickType.

pub fn start_drag(&mut self)

Starts a drag operation (for text selection).

pub fn is_dragging(&self) -> bool

Returns true if a drag operation is in progress.

pub fn stop_drag(&mut self)

Stops the current drag operation.

pub fn last_click_position(&self) -> Option<PxPosition>

Returns the last click position, if any.

pub fn update_last_click_position(&mut self, position: PxPosition)

Updates the last click position (used for drag tracking).

Arguments

• position - The new last click position.