iced-yoda/style/src/text_editor.rs

//! Change the appearance of a text editor.
use crate::core::text::highlighter;
use crate::core::{self, Background, BorderRadius, Color};

/// The appearance of a text input.
#[derive(Debug, Clone, Copy)]
pub struct Appearance {
    /// The [`Background`] of the text input.
    pub background: Background,
    /// The border radius of the text input.
    pub border_radius: BorderRadius,
    /// The border width of the text input.
    pub border_width: f32,
    /// The border [`Color`] of the text input.
    pub border_color: Color,
}

/// A set of rules that dictate the style of a text input.
pub trait StyleSheet {
    /// The supported style of the [`StyleSheet`].
    type Style: Default;

    /// Produces the style of an active text input.
    fn active(&self, style: &Self::Style) -> Appearance;

    /// Produces the style of a focused text input.
    fn focused(&self, style: &Self::Style) -> Appearance;

    /// Produces the [`Color`] of the placeholder of a text input.
    fn placeholder_color(&self, style: &Self::Style) -> Color;

    /// Produces the [`Color`] of the value of a text input.
    fn value_color(&self, style: &Self::Style) -> Color;

    /// Produces the [`Color`] of the value of a disabled text input.
    fn disabled_color(&self, style: &Self::Style) -> Color;

    /// Produces the [`Color`] of the selection of a text input.
    fn selection_color(&self, style: &Self::Style) -> Color;

    /// Produces the style of an hovered text input.
    fn hovered(&self, style: &Self::Style) -> Appearance {
        self.focused(style)
    }

    /// Produces the style of a disabled text input.
    fn disabled(&self, style: &Self::Style) -> Appearance;
}

pub trait Highlight<Font = core::Font, Theme = crate::Theme> {
    fn format(&self, theme: &Theme) -> highlighter::Format<Font>;
}

impl<Font, Theme> Highlight<Font, Theme> for () {
    fn format(&self, _theme: &Theme) -> highlighter::Format<Font> {
        highlighter::Format {
            color: None,
            font: None,
        }
    }
}