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|
use iced_widget::core::{Border, border};
use iced_widget::scrollable::{
Catalog, Rail, Scroller, Status, Style, StyleFn,
};
use super::Theme;
use super::container::surface_container;
use super::utils::mix;
use crate::utils::{HOVERED_LAYER_OPACITY, PRESSED_LAYER_OPACITY};
impl Catalog for Theme {
type Class<'a> = StyleFn<'a, Self>;
fn default<'a>() -> Self::Class<'a> {
Box::new(default)
}
fn style(&self, class: &Self::Class<'_>, status: Status) -> Style {
class(self, status)
}
}
pub fn default(theme: &Theme, status: Status) -> Style {
let colors = theme.colorscheme.surface;
let rail = Rail {
background: None,
scroller: Scroller {
color: colors.on_surface,
border: border::rounded(400),
},
border: Border::default(),
};
let style = Style {
container: surface_container(theme),
vertical_rail: rail,
horizontal_rail: rail,
gap: None,
};
match status {
Status::Active { .. } => style,
Status::Hovered {
is_horizontal_scrollbar_hovered,
is_vertical_scrollbar_hovered,
..
} => {
let hovered_rail = Rail {
scroller: Scroller {
color: mix(
colors.on_surface,
colors.color,
HOVERED_LAYER_OPACITY,
),
border: border::rounded(400),
},
..rail
};
Style {
horizontal_rail: if is_horizontal_scrollbar_hovered {
hovered_rail
} else {
rail
},
vertical_rail: if is_vertical_scrollbar_hovered {
hovered_rail
} else {
rail
},
..style
}
}
Status::Dragged {
is_horizontal_scrollbar_dragged,
is_vertical_scrollbar_dragged,
..
} => {
let dragged_rail = Rail {
scroller: Scroller {
color: mix(
colors.on_surface,
colors.color,
PRESSED_LAYER_OPACITY,
),
border: border::rounded(400),
},
..rail
};
Style {
horizontal_rail: if is_horizontal_scrollbar_dragged {
dragged_rail
} else {
rail
},
vertical_rail: if is_vertical_scrollbar_dragged {
dragged_rail
} else {
rail
},
..style
}
}
}
}
|
