max / alloy_tui

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1	//! Selection chrome: the marker glyph and the selected-row style.
2	//!
3	//! Ported from sysop-tui's `selection.rs`, retinted from the theme. The marker
4	//! stays a plain triangle rather than a Nerd Font glyph so selection survives
5	//! a console without the patched font — the TTY before the session starts, a
6	//! remote shell, `alloy` over SSH. Per docs/ICONOGRAPHY.md, Nerd Font glyphs
7	//! decorate; they never carry state on their own.
8
9	use ratatui::style::{Modifier, Style};
10
11	use crate::theme::Theme;
12
13	/// The selected-row marker. Rendered in the gutter, one cell plus a space.
14	pub const MARKER: &str = "▶";
15
16	/// Blank gutter for unselected rows — the same width as [`MARKER`], so rows do
17	/// not shift horizontally as selection moves.
18	pub const MARKER_BLANK: &str = " ";
19
20	/// Style for the selected row.
21	///
22	/// Uses `surface.raised` as the selection field rather than an accent fill:
23	/// DESIGN-LANGUAGE.md keeps color off chrome, so selection reads as a raised
24	/// surface plus weight, and any `Severity` color already on the row survives
25	/// unchanged instead of being drowned by an accent background.
26	pub fn selected_style(theme: &Theme) -> Style {
27	Style::default()
28	.bg(theme.surface_raised)
29	.fg(theme.content_primary)
30	.add_modifier(Modifier::BOLD)
31	}
32
33	/// Style for an unselected row.
34	pub fn unselected_style(theme: &Theme) -> Style {
35	Style::default().fg(theme.content_secondary)
36	}
37