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|
use iced_widget::core::{Background, 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, disabled_container,
disabled_text,
};
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 surface = theme.colors().surface;
let active = Rail {
background: None,
scroller: Scroller {
color: surface.on_surface,
border: border::rounded(400),
},
border: Border::default(),
};
let disabled = Rail {
background: Some(Background::Color(disabled_container(
surface.on_surface,
))),
scroller: Scroller {
color: disabled_text(surface.on_surface),
border: border::rounded(400),
},
..active
};
let style = Style {
container: surface_container(theme),
vertical_rail: active,
horizontal_rail: active,
gap: None,
};
match status {
Status::Active {
is_horizontal_scrollbar_disabled,
is_vertical_scrollbar_disabled,
} => Style {
horizontal_rail: if is_horizontal_scrollbar_disabled {
disabled
} else {
active
},
vertical_rail: if is_vertical_scrollbar_disabled {
disabled
} else {
active
},
..style
},
Status::Hovered {
is_horizontal_scrollbar_hovered,
is_vertical_scrollbar_hovered,
is_horizontal_scrollbar_disabled,
is_vertical_scrollbar_disabled,
} => {
let hovered_rail = Rail {
scroller: Scroller {
color: mix(
surface.on_surface,
surface.color,
HOVERED_LAYER_OPACITY,
),
border: border::rounded(400),
},
..active
};
Style {
horizontal_rail: if is_horizontal_scrollbar_disabled {
disabled
} else if is_horizontal_scrollbar_hovered {
hovered_rail
} else {
active
},
vertical_rail: if is_vertical_scrollbar_disabled {
disabled
} else if is_vertical_scrollbar_hovered {
hovered_rail
} else {
active
},
..style
}
}
Status::Dragged {
is_horizontal_scrollbar_dragged,
is_vertical_scrollbar_dragged,
is_horizontal_scrollbar_disabled,
is_vertical_scrollbar_disabled,
} => {
let dragged_rail = Rail {
scroller: Scroller {
color: mix(
surface.on_surface,
surface.color,
PRESSED_LAYER_OPACITY,
),
border: border::rounded(400),
},
..active
};
Style {
horizontal_rail: if is_horizontal_scrollbar_disabled {
disabled
} else if is_horizontal_scrollbar_dragged {
dragged_rail
} else {
active
},
vertical_rail: if is_vertical_scrollbar_disabled {
disabled
} else if is_vertical_scrollbar_dragged {
dragged_rail
} else {
active
},
..style
}
}
}
}
|
