bezel-ui 0.2.6

SwiftUI-flavored components for gpui — popovers, menus, buttons, toggles, and loaders
Documentation 
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//! Color picking: a preset [`Swatch`] set the app configures, and
//! [`ColorPicker`] for anything outside it.
//!
//! The set is read through [`crate::AppExt::color_swatches`] and replaced with
//! [`crate::AppExt::set_color_swatches`]; until then it is [`default_swatches`].

mod picker;

use std::rc::Rc;

use gpui::{App, Global, Hsla, SharedString};
use theme::{Appearance, Theme};

pub use picker::{ColorPicker, ColorPickerEvent, parse_hex, to_hex};

/// One preset color, with a value per appearance.
#[derive(Clone, Debug, PartialEq)]
pub struct Swatch {
    /// What a tooltip or an accessibility label calls it.
    pub name: SharedString,
    pub light: Hsla,
    pub dark: Hsla,
}

impl Swatch {
    pub fn new(
        name: impl Into<SharedString>,
        light: impl Into<Hsla>,
        dark: impl Into<Hsla>,
    ) -> Self {
        Self {
            name: name.into(),
            light: light.into(),
            dark: dark.into(),
        }
    }

    /// The same color under both appearances.
    pub fn fixed(name: impl Into<SharedString>, color: impl Into<Hsla>) -> Self {
        let color = color.into();
        Self::new(name, color, color)
    }

    /// The value for `theme`'s appearance.
    pub fn resolve(&self, theme: &Theme) -> Hsla {
        match theme.appearance {
            Appearance::Light => self.light,
            Appearance::Dark => self.dark,
        }
    }
}

/// Apple's macOS system colors, red through brown.
pub fn default_swatches() -> Rc<[Swatch]> {
    let swatch = |name: &'static str, light: u32, dark: u32| {
        Swatch::new(name, gpui::rgb(light), gpui::rgb(dark))
    };
    Rc::from([
        swatch("Red", 0xFF3B30, 0xFF453A),
        swatch("Orange", 0xFF9500, 0xFF9F0A),
        swatch("Yellow", 0xFFCC00, 0xFFD60A),
        swatch("Green", 0x28CD41, 0x32D74B),
        swatch("Mint", 0x00C7BE, 0x63E6E2),
        swatch("Teal", 0x59ADC4, 0x6AC4DC),
        swatch("Cyan", 0x55BEF0, 0x5AC8F5),
        swatch("Blue", 0x007AFF, 0x0A84FF),
        swatch("Indigo", 0x5856D6, 0x5E5CE6),
        swatch("Purple", 0xAF52DE, 0xBF5AF2),
        swatch("Pink", 0xFF2D55, 0xFF375F),
        swatch("Brown", 0xA2845E, 0xAC8E68),
    ])
}

struct Swatches(Rc<[Swatch]>);

impl Global for Swatches {}

pub(crate) fn swatches(cx: &App) -> Rc<[Swatch]> {
    cx.try_global::<Swatches>()
        .map_or_else(default_swatches, |set| set.0.clone())
}

pub(crate) fn set_swatches(set: impl Into<Rc<[Swatch]>>, cx: &mut App) {
    cx.set_global(Swatches(set.into()));
    cx.refresh_windows();
}