guise-ui 1.5.2

A component library for gpui, Zed's GPU-accelerated UI framework: a themed palette, sizing tokens, 130+ composable components, a reactive state layer, and an in-app Safari-style inspector.
Documentation 
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//! Prebuilt themes — well-known palettes expressed as override sets over the
//! base light/dark themes. Grab one directly (`Theme::dracula().init(cx)`) or
//! look it up by name with [`Theme::preset`].

use super::{Color, Theme};

/// The names [`Theme::preset`] recognizes.
pub const PRESET_NAMES: [&str; 6] = [
  "catppuccin",
  "nord",
  "tokyonight",
  "gruvbox",
  "dracula",
  "solarizedlight",
];

fn hex(value: &'static str) -> Color {
  Color::hex(value)
}

impl Theme {
  /// Look up a prebuilt theme by name (see [`PRESET_NAMES`]).
  pub fn preset(name: &str) -> Option<Theme> {
    match name {
      "catppuccin" => Some(Theme::catppuccin()),
      "nord" => Some(Theme::nord()),
      "tokyonight" => Some(Theme::tokyonight()),
      "gruvbox" => Some(Theme::gruvbox()),
      "dracula" => Some(Theme::dracula()),
      "solarizedlight" => Some(Theme::solarized_light()),
      _ => None,
    }
  }

  /// Catppuccin Mocha (dark).
  pub fn catppuccin() -> Theme {
    Theme::dark()
      .with_primary(hex("#89b4fa"))
      .with_body(hex("#1e1e2e"))
      .with_surface(hex("#181825"))
      .with_surface_hover(hex("#313244"))
      .with_text(hex("#cdd6f4"))
      .with_dimmed(hex("#a6adc8"))
      .with_border(hex("#45475a"))
      .with_success(hex("#a6e3a1"))
      .with_warning(hex("#f9e2af"))
      .with_danger(hex("#f38ba8"))
      .with_info(hex("#89dceb"))
  }

  /// Nord (dark).
  pub fn nord() -> Theme {
    Theme::dark()
      .with_primary(hex("#88c0d0"))
      .with_body(hex("#2e3440"))
      .with_surface(hex("#3b4252"))
      .with_surface_hover(hex("#434c5e"))
      .with_text(hex("#eceff4"))
      .with_dimmed(hex("#d8dee9"))
      .with_border(hex("#4c566a"))
      .with_success(hex("#a3be8c"))
      .with_warning(hex("#ebcb8b"))
      .with_danger(hex("#bf616a"))
      .with_info(hex("#81a1c1"))
  }

  /// Tokyo Night (dark).
  pub fn tokyonight() -> Theme {
    Theme::dark()
      .with_primary(hex("#7aa2f7"))
      .with_body(hex("#1a1b26"))
      .with_surface(hex("#16161e"))
      .with_surface_hover(hex("#292e42"))
      .with_text(hex("#c0caf5"))
      .with_dimmed(hex("#565f89"))
      .with_border(hex("#3b4261"))
      .with_success(hex("#9ece6a"))
      .with_warning(hex("#e0af68"))
      .with_danger(hex("#f7768e"))
      .with_info(hex("#7dcfff"))
  }

  /// Gruvbox (dark, hard contrast accents).
  pub fn gruvbox() -> Theme {
    Theme::dark()
      .with_primary(hex("#fe8019"))
      .with_body(hex("#282828"))
      .with_surface(hex("#3c3836"))
      .with_surface_hover(hex("#504945"))
      .with_text(hex("#ebdbb2"))
      .with_dimmed(hex("#a89984"))
      .with_border(hex("#665c54"))
      .with_success(hex("#b8bb26"))
      .with_warning(hex("#fabd2f"))
      .with_danger(hex("#fb4934"))
      .with_info(hex("#83a598"))
  }

  /// Dracula (dark).
  pub fn dracula() -> Theme {
    Theme::dark()
      .with_primary(hex("#bd93f9"))
      .with_body(hex("#282a36"))
      .with_surface(hex("#21222c"))
      .with_surface_hover(hex("#44475a"))
      .with_text(hex("#f8f8f2"))
      .with_dimmed(hex("#6272a4"))
      .with_border(hex("#44475a"))
      .with_success(hex("#50fa7b"))
      .with_warning(hex("#f1fa8c"))
      .with_danger(hex("#ff5555"))
      .with_info(hex("#8be9fd"))
  }

  /// Solarized (light).
  pub fn solarized_light() -> Theme {
    Theme::light()
      .with_primary(hex("#268bd2"))
      .with_body(hex("#fdf6e3"))
      .with_surface(hex("#eee8d5"))
      .with_surface_hover(hex("#e4dcc4"))
      .with_text(hex("#657b83"))
      .with_dimmed(hex("#93a1a1"))
      .with_border(hex("#d5cdb4"))
      .with_success(hex("#859900"))
      .with_warning(hex("#b58900"))
      .with_danger(hex("#dc322f"))
      .with_info(hex("#2aa198"))
  }
}

#[cfg(test)]
mod tests {
  use super::*;

  #[test]
  fn every_name_resolves_and_overrides_all_slots() {
    for name in PRESET_NAMES {
      let theme = Theme::preset(name).unwrap_or_else(|| panic!("missing preset {name}"));
      let o = &theme.overrides;
      for (slot, value) in [
        ("primary", o.primary),
        ("body", o.body),
        ("surface", o.surface),
        ("surface_hover", o.surface_hover),
        ("text", o.text),
        ("dimmed", o.dimmed),
        ("border", o.border),
        ("success", o.success),
        ("warning", o.warning),
        ("danger", o.danger),
        ("info", o.info),
      ] {
        assert!(value.is_some(), "{name} leaves {slot} unset");
      }
    }
    assert!(Theme::preset("nope").is_none());
  }

  #[test]
  fn presets_pick_sensible_schemes() {
    assert!(Theme::catppuccin().scheme.is_dark());
    assert!(!Theme::solarized_light().scheme.is_dark());
  }
}