sorokin.oleg.edu
9fd76aef3a
Preserve raw include diagnostic provenance and derive bands from the existing shaped editor. Retain deferred tooltip paragraphs through rendering. Include source, regression, failure and native-trial evidence; corrected native acceptance remains pending.
753 lines
21 KiB
Rust
753 lines
21 KiB
Rust
//! Buttons allow your users to perform actions by pressing them.
|
|
//!
|
|
//! # Example
|
|
//! ```no_run
|
|
//! # mod iced { pub mod widget { pub use iced_widget::*; } }
|
|
//! # pub type State = ();
|
|
//! # pub type Element<'a, Message> = iced_widget::core::Element<'a, Message, iced_widget::Theme, iced_widget::Renderer>;
|
|
//! use iced::widget::button;
|
|
//!
|
|
//! #[derive(Clone)]
|
|
//! enum Message {
|
|
//! ButtonPressed,
|
|
//! }
|
|
//!
|
|
//! fn view(state: &State) -> Element<'_, Message> {
|
|
//! button("Press me!").on_press(Message::ButtonPressed).into()
|
|
//! }
|
|
//! ```
|
|
use crate::core::border::{self, Border};
|
|
use crate::core::layout;
|
|
use crate::core::mouse;
|
|
use crate::core::overlay;
|
|
use crate::core::renderer;
|
|
use crate::core::theme::palette;
|
|
use crate::core::touch;
|
|
use crate::core::widget::Operation;
|
|
use crate::core::widget::tree::{self, Tree};
|
|
use crate::core::window;
|
|
use crate::core::{
|
|
Background, Clipboard, Color, Element, Event, Layout, Length, Padding,
|
|
Rectangle, Shadow, Shell, Size, Theme, Vector, Widget,
|
|
};
|
|
|
|
/// A generic widget that produces a message when pressed.
|
|
///
|
|
/// # Example
|
|
/// ```no_run
|
|
/// # mod iced { pub mod widget { pub use iced_widget::*; } }
|
|
/// # pub type State = ();
|
|
/// # pub type Element<'a, Message> = iced_widget::core::Element<'a, Message, iced_widget::Theme, iced_widget::Renderer>;
|
|
/// use iced::widget::button;
|
|
///
|
|
/// #[derive(Clone)]
|
|
/// enum Message {
|
|
/// ButtonPressed,
|
|
/// }
|
|
///
|
|
/// fn view(state: &State) -> Element<'_, Message> {
|
|
/// button("Press me!").on_press(Message::ButtonPressed).into()
|
|
/// }
|
|
/// ```
|
|
///
|
|
/// If a [`Button::on_press`] handler is not set, the resulting [`Button`] will
|
|
/// be disabled:
|
|
///
|
|
/// ```no_run
|
|
/// # mod iced { pub mod widget { pub use iced_widget::*; } }
|
|
/// # pub type State = ();
|
|
/// # pub type Element<'a, Message> = iced_widget::core::Element<'a, Message, iced_widget::Theme, iced_widget::Renderer>;
|
|
/// use iced::widget::button;
|
|
///
|
|
/// #[derive(Clone)]
|
|
/// enum Message {
|
|
/// ButtonPressed,
|
|
/// }
|
|
///
|
|
/// fn view(state: &State) -> Element<'_, Message> {
|
|
/// button("I am disabled!").into()
|
|
/// }
|
|
/// ```
|
|
pub struct Button<'a, Message, Theme = crate::Theme, Renderer = crate::Renderer>
|
|
where
|
|
Renderer: crate::core::Renderer,
|
|
Theme: Catalog,
|
|
{
|
|
content: Element<'a, Message, Theme, Renderer>,
|
|
on_press: Option<OnPress<'a, Message>>,
|
|
width: Length,
|
|
height: Length,
|
|
padding: Padding,
|
|
clip: bool,
|
|
class: Theme::Class<'a>,
|
|
status: Option<Status>,
|
|
}
|
|
|
|
enum OnPress<'a, Message> {
|
|
Direct(Message),
|
|
Closure(Box<dyn Fn() -> Message + 'a>),
|
|
}
|
|
|
|
impl<Message: Clone> OnPress<'_, Message> {
|
|
fn get(&self) -> Message {
|
|
match self {
|
|
OnPress::Direct(message) => message.clone(),
|
|
OnPress::Closure(f) => f(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a, Message, Theme, Renderer> Button<'a, Message, Theme, Renderer>
|
|
where
|
|
Renderer: crate::core::Renderer,
|
|
Theme: Catalog,
|
|
{
|
|
/// Creates a new [`Button`] with the given content.
|
|
pub fn new(
|
|
content: impl Into<Element<'a, Message, Theme, Renderer>>,
|
|
) -> Self {
|
|
let content = content.into();
|
|
let size = content.as_widget().size_hint();
|
|
|
|
Button {
|
|
content,
|
|
on_press: None,
|
|
width: size.width.fluid(),
|
|
height: size.height.fluid(),
|
|
padding: DEFAULT_PADDING,
|
|
clip: false,
|
|
class: Theme::default(),
|
|
status: None,
|
|
}
|
|
}
|
|
|
|
/// Sets the width of the [`Button`].
|
|
pub fn width(mut self, width: impl Into<Length>) -> Self {
|
|
self.width = width.into();
|
|
self
|
|
}
|
|
|
|
/// Sets the height of the [`Button`].
|
|
pub fn height(mut self, height: impl Into<Length>) -> Self {
|
|
self.height = height.into();
|
|
self
|
|
}
|
|
|
|
/// Sets the [`Padding`] of the [`Button`].
|
|
pub fn padding<P: Into<Padding>>(mut self, padding: P) -> Self {
|
|
self.padding = padding.into();
|
|
self
|
|
}
|
|
|
|
/// Sets the message that will be produced when the [`Button`] is pressed.
|
|
///
|
|
/// Unless `on_press` is called, the [`Button`] will be disabled.
|
|
pub fn on_press(mut self, on_press: Message) -> Self {
|
|
self.on_press = Some(OnPress::Direct(on_press));
|
|
self
|
|
}
|
|
|
|
/// Sets the message that will be produced when the [`Button`] is pressed.
|
|
///
|
|
/// This is analogous to [`Button::on_press`], but using a closure to produce
|
|
/// the message.
|
|
///
|
|
/// This closure will only be called when the [`Button`] is actually pressed and,
|
|
/// therefore, this method is useful to reduce overhead if creating the resulting
|
|
/// message is slow.
|
|
pub fn on_press_with(
|
|
mut self,
|
|
on_press: impl Fn() -> Message + 'a,
|
|
) -> Self {
|
|
self.on_press = Some(OnPress::Closure(Box::new(on_press)));
|
|
self
|
|
}
|
|
|
|
/// Sets the message that will be produced when the [`Button`] is pressed,
|
|
/// if `Some`.
|
|
///
|
|
/// If `None`, the [`Button`] will be disabled.
|
|
pub fn on_press_maybe(mut self, on_press: Option<Message>) -> Self {
|
|
self.on_press = on_press.map(OnPress::Direct);
|
|
self
|
|
}
|
|
|
|
/// Sets whether the contents of the [`Button`] should be clipped on
|
|
/// overflow.
|
|
pub fn clip(mut self, clip: bool) -> Self {
|
|
self.clip = clip;
|
|
self
|
|
}
|
|
|
|
/// Sets the style of the [`Button`].
|
|
#[must_use]
|
|
pub fn style(mut self, style: impl Fn(&Theme, Status) -> Style + 'a) -> Self
|
|
where
|
|
Theme::Class<'a>: From<StyleFn<'a, Theme>>,
|
|
{
|
|
self.class = (Box::new(style) as StyleFn<'a, Theme>).into();
|
|
self
|
|
}
|
|
|
|
/// Sets the style class of the [`Button`].
|
|
#[cfg(feature = "advanced")]
|
|
#[must_use]
|
|
pub fn class(mut self, class: impl Into<Theme::Class<'a>>) -> Self {
|
|
self.class = class.into();
|
|
self
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
|
|
struct State {
|
|
is_pressed: bool,
|
|
}
|
|
|
|
impl<'a, Message, Theme, Renderer> Widget<Message, Theme, Renderer>
|
|
for Button<'a, Message, Theme, Renderer>
|
|
where
|
|
Message: 'a + Clone,
|
|
Renderer: 'a + crate::core::Renderer,
|
|
Theme: Catalog,
|
|
{
|
|
fn tag(&self) -> tree::Tag {
|
|
tree::Tag::of::<State>()
|
|
}
|
|
|
|
fn state(&self) -> tree::State {
|
|
tree::State::new(State::default())
|
|
}
|
|
|
|
fn children(&self) -> Vec<Tree> {
|
|
vec![Tree::new(&self.content)]
|
|
}
|
|
|
|
fn diff(&self, tree: &mut Tree) {
|
|
tree.diff_children(std::slice::from_ref(&self.content));
|
|
}
|
|
|
|
fn size(&self) -> Size<Length> {
|
|
Size {
|
|
width: self.width,
|
|
height: self.height,
|
|
}
|
|
}
|
|
|
|
fn layout(
|
|
&mut self,
|
|
tree: &mut Tree,
|
|
renderer: &Renderer,
|
|
limits: &layout::Limits,
|
|
) -> layout::Node {
|
|
layout::padded(
|
|
limits,
|
|
self.width,
|
|
self.height,
|
|
self.padding,
|
|
|limits| {
|
|
self.content.as_widget_mut().layout(
|
|
&mut tree.children[0],
|
|
renderer,
|
|
limits,
|
|
)
|
|
},
|
|
)
|
|
}
|
|
|
|
fn operate(
|
|
&mut self,
|
|
tree: &mut Tree,
|
|
layout: Layout<'_>,
|
|
renderer: &Renderer,
|
|
operation: &mut dyn Operation,
|
|
) {
|
|
operation.container(None, layout.bounds());
|
|
operation.traverse(&mut |operation| {
|
|
self.content.as_widget_mut().operate(
|
|
&mut tree.children[0],
|
|
layout.children().next().unwrap(),
|
|
renderer,
|
|
operation,
|
|
);
|
|
});
|
|
}
|
|
|
|
fn update(
|
|
&mut self,
|
|
tree: &mut Tree,
|
|
event: &Event,
|
|
layout: Layout<'_>,
|
|
cursor: mouse::Cursor,
|
|
renderer: &Renderer,
|
|
clipboard: &mut dyn Clipboard,
|
|
shell: &mut Shell<'_, Message>,
|
|
viewport: &Rectangle,
|
|
) {
|
|
self.content.as_widget_mut().update(
|
|
&mut tree.children[0],
|
|
event,
|
|
layout.children().next().unwrap(),
|
|
cursor,
|
|
renderer,
|
|
clipboard,
|
|
shell,
|
|
viewport,
|
|
);
|
|
|
|
if shell.is_event_captured() {
|
|
return;
|
|
}
|
|
|
|
match event {
|
|
Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left))
|
|
| Event::Touch(touch::Event::FingerPressed { .. }) => {
|
|
if self.on_press.is_some() {
|
|
let bounds = layout.bounds();
|
|
|
|
if cursor.is_over(bounds) {
|
|
let state = tree.state.downcast_mut::<State>();
|
|
|
|
state.is_pressed = true;
|
|
|
|
shell.capture_event();
|
|
}
|
|
}
|
|
}
|
|
Event::Mouse(mouse::Event::ButtonReleased(mouse::Button::Left))
|
|
| Event::Touch(touch::Event::FingerLifted { .. }) => {
|
|
if let Some(on_press) = &self.on_press {
|
|
let state = tree.state.downcast_mut::<State>();
|
|
|
|
if state.is_pressed {
|
|
state.is_pressed = false;
|
|
|
|
let bounds = layout.bounds();
|
|
|
|
if cursor.is_over(bounds) {
|
|
shell.publish(on_press.get());
|
|
}
|
|
|
|
shell.capture_event();
|
|
}
|
|
}
|
|
}
|
|
Event::Touch(touch::Event::FingerLost { .. }) => {
|
|
let state = tree.state.downcast_mut::<State>();
|
|
|
|
state.is_pressed = false;
|
|
}
|
|
_ => {}
|
|
}
|
|
|
|
let current_status = if self.on_press.is_none() {
|
|
Status::Disabled
|
|
} else if cursor.is_over(layout.bounds()) {
|
|
let state = tree.state.downcast_ref::<State>();
|
|
|
|
if state.is_pressed {
|
|
Status::Pressed
|
|
} else {
|
|
Status::Hovered
|
|
}
|
|
} else {
|
|
Status::Active
|
|
};
|
|
|
|
if let Event::Window(window::Event::RedrawRequested(_now)) = event {
|
|
self.status = Some(current_status);
|
|
} else if self.status.is_some_and(|status| status != current_status) {
|
|
shell.request_redraw();
|
|
}
|
|
}
|
|
|
|
fn draw(
|
|
&self,
|
|
tree: &Tree,
|
|
renderer: &mut Renderer,
|
|
theme: &Theme,
|
|
_style: &renderer::Style,
|
|
layout: Layout<'_>,
|
|
cursor: mouse::Cursor,
|
|
viewport: &Rectangle,
|
|
) {
|
|
let bounds = layout.bounds();
|
|
let content_layout = layout.children().next().unwrap();
|
|
let style =
|
|
theme.style(&self.class, self.status.unwrap_or(Status::Disabled));
|
|
|
|
if style.background.is_some()
|
|
|| style.border.width > 0.0
|
|
|| style.shadow.color.a > 0.0
|
|
{
|
|
renderer.fill_quad(
|
|
renderer::Quad {
|
|
bounds,
|
|
border: style.border,
|
|
shadow: style.shadow,
|
|
snap: style.snap,
|
|
},
|
|
style
|
|
.background
|
|
.unwrap_or(Background::Color(Color::TRANSPARENT)),
|
|
);
|
|
}
|
|
|
|
let viewport = if self.clip {
|
|
bounds.intersection(viewport).unwrap_or(*viewport)
|
|
} else {
|
|
*viewport
|
|
};
|
|
|
|
self.content.as_widget().draw(
|
|
&tree.children[0],
|
|
renderer,
|
|
theme,
|
|
&renderer::Style {
|
|
text_color: style.text_color,
|
|
},
|
|
content_layout,
|
|
cursor,
|
|
&viewport,
|
|
);
|
|
}
|
|
|
|
fn mouse_interaction(
|
|
&self,
|
|
_tree: &Tree,
|
|
layout: Layout<'_>,
|
|
cursor: mouse::Cursor,
|
|
_viewport: &Rectangle,
|
|
_renderer: &Renderer,
|
|
) -> mouse::Interaction {
|
|
let is_mouse_over = cursor.is_over(layout.bounds());
|
|
|
|
if is_mouse_over && self.on_press.is_some() {
|
|
mouse::Interaction::Pointer
|
|
} else {
|
|
mouse::Interaction::default()
|
|
}
|
|
}
|
|
|
|
fn overlay<'b>(
|
|
&'b mut self,
|
|
tree: &'b mut Tree,
|
|
layout: Layout<'b>,
|
|
renderer: &Renderer,
|
|
viewport: &Rectangle,
|
|
translation: Vector,
|
|
) -> Option<overlay::Element<'b, Message, Theme, Renderer>> {
|
|
self.content.as_widget_mut().overlay(
|
|
&mut tree.children[0],
|
|
layout.children().next().unwrap(),
|
|
renderer,
|
|
viewport,
|
|
translation,
|
|
)
|
|
}
|
|
}
|
|
|
|
impl<'a, Message, Theme, Renderer> From<Button<'a, Message, Theme, Renderer>>
|
|
for Element<'a, Message, Theme, Renderer>
|
|
where
|
|
Message: Clone + 'a,
|
|
Theme: Catalog + 'a,
|
|
Renderer: crate::core::Renderer + 'a,
|
|
{
|
|
fn from(button: Button<'a, Message, Theme, Renderer>) -> Self {
|
|
Self::new(button)
|
|
}
|
|
}
|
|
|
|
/// The default [`Padding`] of a [`Button`].
|
|
pub const DEFAULT_PADDING: Padding = Padding {
|
|
top: 5.0,
|
|
bottom: 5.0,
|
|
right: 10.0,
|
|
left: 10.0,
|
|
};
|
|
|
|
/// The possible status of a [`Button`].
|
|
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
|
pub enum Status {
|
|
/// The [`Button`] can be pressed.
|
|
Active,
|
|
/// The [`Button`] can be pressed and it is being hovered.
|
|
Hovered,
|
|
/// The [`Button`] is being pressed.
|
|
Pressed,
|
|
/// The [`Button`] cannot be pressed.
|
|
Disabled,
|
|
}
|
|
|
|
/// The style of a button.
|
|
///
|
|
/// If not specified with [`Button::style`]
|
|
/// the theme will provide the style.
|
|
#[derive(Debug, Clone, Copy, PartialEq)]
|
|
pub struct Style {
|
|
/// The [`Background`] of the button.
|
|
pub background: Option<Background>,
|
|
/// The text [`Color`] of the button.
|
|
pub text_color: Color,
|
|
/// The [`Border`] of the button.
|
|
pub border: Border,
|
|
/// The [`Shadow`] of the button.
|
|
pub shadow: Shadow,
|
|
/// Whether the button should be snapped to the pixel grid.
|
|
pub snap: bool,
|
|
}
|
|
|
|
impl Style {
|
|
/// Updates the [`Style`] with the given [`Background`].
|
|
pub fn with_background(self, background: impl Into<Background>) -> Self {
|
|
Self {
|
|
background: Some(background.into()),
|
|
..self
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Default for Style {
|
|
fn default() -> Self {
|
|
Self {
|
|
background: None,
|
|
text_color: Color::BLACK,
|
|
border: Border::default(),
|
|
shadow: Shadow::default(),
|
|
snap: cfg!(feature = "crisp"),
|
|
}
|
|
}
|
|
}
|
|
|
|
/// The theme catalog of a [`Button`].
|
|
///
|
|
/// All themes that can be used with [`Button`]
|
|
/// must implement this trait.
|
|
///
|
|
/// # Example
|
|
/// ```no_run
|
|
/// # use iced_widget::core::{Color, Background};
|
|
/// # use iced_widget::button::{Catalog, Status, Style};
|
|
/// # struct MyTheme;
|
|
/// #[derive(Debug, Default)]
|
|
/// pub enum ButtonClass {
|
|
/// #[default]
|
|
/// Primary,
|
|
/// Secondary,
|
|
/// Danger
|
|
/// }
|
|
///
|
|
/// impl Catalog for MyTheme {
|
|
/// type Class<'a> = ButtonClass;
|
|
///
|
|
/// fn default<'a>() -> Self::Class<'a> {
|
|
/// ButtonClass::default()
|
|
/// }
|
|
///
|
|
///
|
|
/// fn style(&self, class: &Self::Class<'_>, status: Status) -> Style {
|
|
/// let mut style = Style::default();
|
|
///
|
|
/// match class {
|
|
/// ButtonClass::Primary => {
|
|
/// style.background = Some(Background::Color(Color::from_rgb(0.529, 0.808, 0.921)));
|
|
/// },
|
|
/// ButtonClass::Secondary => {
|
|
/// style.background = Some(Background::Color(Color::WHITE));
|
|
/// },
|
|
/// ButtonClass::Danger => {
|
|
/// style.background = Some(Background::Color(Color::from_rgb(0.941, 0.502, 0.502)));
|
|
/// },
|
|
/// }
|
|
///
|
|
/// style
|
|
/// }
|
|
/// }
|
|
/// ```
|
|
///
|
|
/// Although, in order to use [`Button::style`]
|
|
/// with `MyTheme`, [`Catalog::Class`] must implement
|
|
/// `From<StyleFn<'_, MyTheme>>`.
|
|
pub trait Catalog {
|
|
/// The item class of the [`Catalog`].
|
|
type Class<'a>;
|
|
|
|
/// The default class produced by the [`Catalog`].
|
|
fn default<'a>() -> Self::Class<'a>;
|
|
|
|
/// The [`Style`] of a class with the given status.
|
|
fn style(&self, class: &Self::Class<'_>, status: Status) -> Style;
|
|
}
|
|
|
|
/// A styling function for a [`Button`].
|
|
pub type StyleFn<'a, Theme> = Box<dyn Fn(&Theme, Status) -> Style + 'a>;
|
|
|
|
impl Catalog for Theme {
|
|
type Class<'a> = StyleFn<'a, Self>;
|
|
|
|
fn default<'a>() -> Self::Class<'a> {
|
|
Box::new(primary)
|
|
}
|
|
|
|
fn style(&self, class: &Self::Class<'_>, status: Status) -> Style {
|
|
class(self, status)
|
|
}
|
|
}
|
|
|
|
/// A primary button; denoting a main action.
|
|
pub fn primary(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.primary.base);
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.primary.strong.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A secondary button; denoting a complementary action.
|
|
pub fn secondary(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.secondary.base);
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.secondary.strong.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A success button; denoting a good outcome.
|
|
pub fn success(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.success.base);
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.success.strong.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A warning button; denoting a risky action.
|
|
pub fn warning(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.warning.base);
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.warning.strong.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A danger button; denoting a destructive action.
|
|
pub fn danger(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.danger.base);
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.danger.strong.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A text button; useful for links.
|
|
pub fn text(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
|
|
let base = Style {
|
|
text_color: palette.background.base.text,
|
|
..Style::default()
|
|
};
|
|
|
|
match status {
|
|
Status::Active | Status::Pressed => base,
|
|
Status::Hovered => Style {
|
|
text_color: palette.background.base.text.scale_alpha(0.8),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A button using background shades.
|
|
pub fn background(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.background.base);
|
|
|
|
match status {
|
|
Status::Active => base,
|
|
Status::Pressed => Style {
|
|
background: Some(Background::Color(
|
|
palette.background.strong.color,
|
|
)),
|
|
..base
|
|
},
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(palette.background.weak.color)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
/// A subtle button using weak background shades.
|
|
pub fn subtle(theme: &Theme, status: Status) -> Style {
|
|
let palette = theme.extended_palette();
|
|
let base = styled(palette.background.weakest);
|
|
|
|
match status {
|
|
Status::Active => base,
|
|
Status::Pressed => Style {
|
|
background: Some(Background::Color(
|
|
palette.background.strong.color,
|
|
)),
|
|
..base
|
|
},
|
|
Status::Hovered => Style {
|
|
background: Some(Background::Color(
|
|
palette.background.weaker.color,
|
|
)),
|
|
..base
|
|
},
|
|
Status::Disabled => disabled(base),
|
|
}
|
|
}
|
|
|
|
fn styled(pair: palette::Pair) -> Style {
|
|
Style {
|
|
background: Some(Background::Color(pair.color)),
|
|
text_color: pair.text,
|
|
border: border::rounded(2),
|
|
..Style::default()
|
|
}
|
|
}
|
|
|
|
fn disabled(style: Style) -> Style {
|
|
Style {
|
|
background: style
|
|
.background
|
|
.map(|background| background.scale_alpha(0.5)),
|
|
text_color: style.text_color.scale_alpha(0.5),
|
|
..style
|
|
}
|
|
}
|