claude@clouddev1
03d8a09457
OutputLine gains an optional styled-runs payload — a
Vec<OutputSpan> of { byte_range, OutputStyleClass } over the
line text. render_output_line gains a branch: when the payload
is present it renders the text span-by-span, each run's
semantic class (Neutral / Efficient / Expensive /
AutomaticIndex) resolved to a theme colour at render time;
otherwise the existing whole-line kind styling. The echo path
is untouched.
Theme gains `plan_efficient` — a green deliberately distinct
from `system` so green never reads as two things (ADR-0028 §6);
`warning` is reused for expensive steps.
A general per-span output-styling capability (ADR-0016's OOS-3
realized); the query-plan renderer will be its first consumer.
No user-visible change on its own. 1133 passing, clippy clean.
202 lines
7.9 KiB
Rust
202 lines
7.9 KiB
Rust
//! Theme and colour palette.
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//!
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//! Two themes are provided — one for light terminal backgrounds
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//! and one for dark — per NFR-7. The palette is intentionally
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//! small for the walking skeleton; it grows as more views are
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//! added. Contrast is chosen against the target background so
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//! that foreground text meets WCAG-AA (NFR-5) on both variants.
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//!
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//! Per-token-class colours (the `tok_*` fields) drive ambient
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//! typing assistance (ADR-0022 §3). Each token class has a
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//! distinct colour so the user can tell keywords from
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//! identifiers from string literals at a glance, with punct and
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//! identifier intentionally close to `fg` to keep the surface
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//! quiet for the dominant content. The `tok_error` colour
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//! reuses the existing error palette so lex-error tokens and
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//! parse-error overlays read consistently with `[error]`
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//! lines elsewhere.
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use ratatui::style::Color;
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use crate::dsl::grammar::HighlightClass;
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Background {
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Light,
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Dark,
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}
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#[derive(Debug, Clone)]
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pub struct Theme {
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pub background: Background,
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pub bg: Color,
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pub fg: Color,
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pub muted: Color,
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pub border: Color,
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pub border_advanced: Color,
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pub mode_simple: Color,
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pub mode_advanced: Color,
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pub system: Color,
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pub error: Color,
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/// Validity-indicator WARNING colour (ADR-0027 §4) — an
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/// amber distinct from `error`'s red. Drives the `[WRN]`
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/// label; `[ERR]` reuses `error`. Also the query-plan
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/// "expensive step" colour (ADR-0028 §6).
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pub warning: Color,
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/// Query-plan "efficient step" colour (ADR-0028 §6) — a
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/// green deliberately distinct from `system` so green never
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/// reads as two things. Indexed lookups carry it; expensive
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/// steps reuse `warning`.
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pub plan_efficient: Color,
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// ---- Per-token-class colours (ADR-0022 §3) -------------------
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pub tok_keyword: Color,
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pub tok_identifier: Color,
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pub tok_number: Color,
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pub tok_string: Color,
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pub tok_punct: Color,
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pub tok_flag: Color,
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pub tok_error: Color,
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}
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impl Theme {
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#[must_use]
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pub const fn dark() -> Self {
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Self {
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background: Background::Dark,
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bg: Color::Rgb(0x18, 0x1B, 0x22),
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fg: Color::Rgb(0xE6, 0xE6, 0xE6),
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muted: Color::Rgb(0x8B, 0x90, 0x9A),
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border: Color::Rgb(0x4A, 0x52, 0x65),
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border_advanced: Color::Rgb(0xE0, 0x60, 0x60),
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mode_simple: Color::Rgb(0x6E, 0xC4, 0xFF),
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mode_advanced: Color::Rgb(0xFF, 0x9E, 0x6B),
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system: Color::Rgb(0x9F, 0xD8, 0x91),
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error: Color::Rgb(0xFF, 0x6B, 0x6B),
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warning: Color::Rgb(0xF5, 0xA9, 0x4B), // amber
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plan_efficient: Color::Rgb(0x4D, 0xD0, 0xA8), // teal-green
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// Token classes — distinct enough to tell apart at a
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// glance, quiet enough that 80-char lines don't read
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// like a Christmas tree. Identifier and punct sit
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// close to `fg`/`muted` so the dominant content
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// remains restful; literals and flags get warm
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// accent tones; keyword takes a cool accent tone
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// distinct from the mode-banner blue.
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tok_keyword: Color::Rgb(0xC7, 0x92, 0xEA), // muted purple
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tok_identifier: Color::Rgb(0x56, 0xB6, 0xC2), // cyan-teal — identifiers are the user's content, deserve a vivid distinct colour
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tok_number: Color::Rgb(0xF7, 0x8C, 0x6C), // warm orange
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tok_string: Color::Rgb(0xC3, 0xE8, 0x8D), // soft green
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tok_punct: Color::Rgb(0x8B, 0x90, 0x9A), // == muted
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tok_flag: Color::Rgb(0xFF, 0xCB, 0x6B), // amber
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tok_error: Color::Rgb(0xFF, 0x6B, 0x6B), // == error
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}
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}
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#[must_use]
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pub const fn light() -> Self {
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Self {
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background: Background::Light,
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bg: Color::Rgb(0xFA, 0xFA, 0xF7),
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fg: Color::Rgb(0x1A, 0x1F, 0x2C),
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muted: Color::Rgb(0x60, 0x66, 0x73),
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border: Color::Rgb(0xB6, 0xBC, 0xC8),
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border_advanced: Color::Rgb(0xC2, 0x3A, 0x3A),
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mode_simple: Color::Rgb(0x21, 0x69, 0xC7),
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mode_advanced: Color::Rgb(0xB0, 0x4A, 0x12),
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system: Color::Rgb(0x2E, 0x7C, 0x3C),
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error: Color::Rgb(0xC0, 0x39, 0x2B),
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warning: Color::Rgb(0xA6, 0x5A, 0x00), // burnt amber
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plan_efficient: Color::Rgb(0x0B, 0x80, 0x6A), // deep teal-green
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// Light-theme token palette: same intent as dark —
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// identifier/punct close to fg/muted; warm tones for
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// literals + flags; cool accent for keyword.
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tok_keyword: Color::Rgb(0x6F, 0x42, 0xC1), // royal purple
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tok_identifier: Color::Rgb(0x0F, 0x6B, 0x76), // deep teal — same role as dark variant: identifiers stand out
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tok_number: Color::Rgb(0xBC, 0x4F, 0x1F), // burnt orange
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tok_string: Color::Rgb(0x22, 0x86, 0x3A), // forest green
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tok_punct: Color::Rgb(0x60, 0x66, 0x73), // == muted
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tok_flag: Color::Rgb(0xB0, 0x88, 0x00), // mustard
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tok_error: Color::Rgb(0xC0, 0x39, 0x2B), // == error
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}
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}
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/// Map a walker `HighlightClass` to its display colour
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/// (ADR-0024 §architecture, Phase F). This is the walker-side
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/// equivalent of `token_color` — the renderer consumes
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/// `walker::highlight_runs` output, which produces
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/// `HighlightClass` per byte range, and looks up colours
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/// through this method.
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#[must_use]
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pub const fn highlight_class_color(&self, class: HighlightClass) -> Color {
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match class {
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HighlightClass::Keyword => self.tok_keyword,
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HighlightClass::Identifier => self.tok_identifier,
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HighlightClass::Number => self.tok_number,
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HighlightClass::String => self.tok_string,
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HighlightClass::Punct => self.tok_punct,
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HighlightClass::Flag => self.tok_flag,
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HighlightClass::Error => self.tok_error,
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}
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}
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}
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impl Default for Theme {
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fn default() -> Self {
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Self::dark()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn dark_theme_token_colours_differ_from_background() {
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let t = Theme::dark();
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for (name, c) in [
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("tok_keyword", t.tok_keyword),
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("tok_number", t.tok_number),
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("tok_string", t.tok_string),
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("tok_flag", t.tok_flag),
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("tok_error", t.tok_error),
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("warning", t.warning),
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] {
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assert_ne!(
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c, t.bg,
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"{name} must contrast against bg in dark theme",
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);
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}
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}
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#[test]
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fn light_theme_token_colours_differ_from_background() {
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let t = Theme::light();
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for (name, c) in [
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("tok_keyword", t.tok_keyword),
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("tok_number", t.tok_number),
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("tok_string", t.tok_string),
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("tok_flag", t.tok_flag),
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("tok_error", t.tok_error),
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("warning", t.warning),
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] {
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assert_ne!(
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c, t.bg,
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"{name} must contrast against bg in light theme",
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);
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}
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}
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#[test]
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fn highlight_class_color_maps_each_variant() {
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let t = Theme::dark();
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assert_eq!(t.highlight_class_color(HighlightClass::Keyword), t.tok_keyword);
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assert_eq!(t.highlight_class_color(HighlightClass::Identifier), t.tok_identifier);
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assert_eq!(t.highlight_class_color(HighlightClass::Number), t.tok_number);
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assert_eq!(t.highlight_class_color(HighlightClass::String), t.tok_string);
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assert_eq!(t.highlight_class_color(HighlightClass::Punct), t.tok_punct);
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assert_eq!(t.highlight_class_color(HighlightClass::Flag), t.tok_flag);
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assert_eq!(t.highlight_class_color(HighlightClass::Error), t.tok_error);
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}
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}
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