867 lines
27 KiB
Rust
867 lines
27 KiB
Rust
// Copyright 2019 H<>ctor Ram<61>n, Iced contributors
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// Copyright 2023 System76 <info@system76.com>
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// SPDX-License-Identifier: MIT
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//! Allow your users to perform actions by pressing a button.
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//!
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//! A [`Button`] has some local [`State`].
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use iced_runtime::core::widget::Id;
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use iced_runtime::{keyboard, Command};
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use iced_core::event::{self, Event};
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use iced_core::renderer::{self, Quad, Renderer};
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use iced_core::touch;
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use iced_core::widget::tree::{self, Tree};
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use iced_core::widget::Operation;
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use iced_core::{layout, svg};
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use iced_core::{mouse, Border};
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use iced_core::{overlay, Shadow};
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use iced_core::{
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Background, Clipboard, Color, Layout, Length, Padding, Point, Rectangle, Shell, Vector, Widget,
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};
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use iced_renderer::core::widget::{operation, OperationOutputWrapper};
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use crate::theme::THEME;
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pub use super::style::{Appearance, StyleSheet};
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/// Internally defines different button widget variants.
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enum Variant<Message> {
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Normal,
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Image {
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close_icon: svg::Handle,
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on_remove: Option<Message>,
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},
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}
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/// A generic button which emits a message when pressed.
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#[allow(missing_debug_implementations)]
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#[must_use]
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pub struct Button<'a, Message> {
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id: Id,
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#[cfg(feature = "a11y")]
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name: Option<std::borrow::Cow<'a, str>>,
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#[cfg(feature = "a11y")]
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description: Option<iced_accessibility::Description<'a>>,
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#[cfg(feature = "a11y")]
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label: Option<Vec<iced_accessibility::accesskit::NodeId>>,
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content: crate::Element<'a, Message>,
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on_press: Option<Message>,
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on_press_down: Option<Message>,
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width: Length,
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height: Length,
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padding: Padding,
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selected: bool,
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style: crate::theme::Button,
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variant: Variant<Message>,
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}
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impl<'a, Message> Button<'a, Message> {
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/// Creates a new [`Button`] with the given content.
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pub(super) fn new(content: impl Into<crate::Element<'a, Message>>) -> Self {
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Self {
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id: Id::unique(),
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#[cfg(feature = "a11y")]
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name: None,
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#[cfg(feature = "a11y")]
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description: None,
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#[cfg(feature = "a11y")]
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label: None,
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content: content.into(),
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on_press: None,
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on_press_down: None,
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width: Length::Shrink,
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height: Length::Shrink,
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padding: Padding::new(5.0),
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selected: false,
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style: crate::theme::Button::default(),
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variant: Variant::Normal,
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}
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}
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pub fn new_image(
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content: impl Into<crate::Element<'a, Message>>,
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on_remove: Option<Message>,
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) -> Self {
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Self {
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id: Id::unique(),
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#[cfg(feature = "a11y")]
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name: None,
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#[cfg(feature = "a11y")]
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description: None,
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#[cfg(feature = "a11y")]
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label: None,
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content: content.into(),
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on_press: None,
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on_press_down: None,
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width: Length::Shrink,
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height: Length::Shrink,
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padding: Padding::new(5.0),
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selected: false,
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style: crate::theme::Button::default(),
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variant: Variant::Image {
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on_remove,
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close_icon: crate::widget::icon::from_name("window-close-symbolic")
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.size(8)
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.icon()
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.into_svg_handle()
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.unwrap_or_else(|| {
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let bytes: &'static [u8] = &[];
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iced_core::svg::Handle::from_memory(bytes)
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}),
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},
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}
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}
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/// Sets the [`Id`] of the [`Button`].
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pub fn id(mut self, id: Id) -> Self {
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self.id = id;
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self
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}
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/// Sets the width of the [`Button`].
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pub fn width(mut self, width: impl Into<Length>) -> Self {
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self.width = width.into();
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self
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}
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/// Sets the height of the [`Button`].
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pub fn height(mut self, height: impl Into<Length>) -> Self {
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self.height = height.into();
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self
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}
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/// Sets the [`Padding`] of the [`Button`].
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pub fn padding<P: Into<Padding>>(mut self, padding: P) -> Self {
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self.padding = padding.into();
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self
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}
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/// Sets the message that will be produced when the [`Button`] is pressed and released.
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///
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/// Unless `on_press` or `on_press_down` is called, the [`Button`] will be disabled.
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pub fn on_press(mut self, on_press: Message) -> Self {
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self.on_press = Some(on_press);
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self
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}
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/// Sets the message that will be produced when the [`Button`] is pressed,
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///
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/// Unless `on_press` or `on_press_down` is called, the [`Button`] will be disabled.
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pub fn on_press_down(mut self, on_press: Message) -> Self {
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self.on_press_down = Some(on_press);
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self
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}
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/// Sets the message that will be produced when the [`Button`] is pressed,
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/// if `Some`.
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///
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/// If `None`, the [`Button`] will be disabled.
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pub fn on_press_maybe(mut self, on_press: Option<Message>) -> Self {
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self.on_press = on_press;
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self
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}
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/// Sets the widget to a selected state.
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///
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/// Displays a selection indicator on image buttons.
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pub fn selected(mut self, selected: bool) -> Self {
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self.selected = selected;
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self
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}
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/// Sets the style variant of this [`Button`].
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pub fn style(mut self, style: crate::theme::Button) -> Self {
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self.style = style;
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self
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}
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#[cfg(feature = "a11y")]
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/// Sets the name of the [`Button`].
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pub fn name(mut self, name: impl Into<std::borrow::Cow<'a, str>>) -> Self {
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self.name = Some(name.into());
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self
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}
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#[cfg(feature = "a11y")]
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/// Sets the description of the [`Button`].
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pub fn description_widget<T: iced_accessibility::Describes>(mut self, description: &T) -> Self {
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self.description = Some(iced_accessibility::Description::Id(
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description.description(),
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));
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self
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}
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#[cfg(feature = "a11y")]
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/// Sets the description of the [`Button`].
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pub fn description(mut self, description: impl Into<std::borrow::Cow<'a, str>>) -> Self {
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self.description = Some(iced_accessibility::Description::Text(description.into()));
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self
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}
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#[cfg(feature = "a11y")]
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/// Sets the label of the [`Button`].
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pub fn label(mut self, label: &dyn iced_accessibility::Labels) -> Self {
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self.label = Some(label.label().into_iter().map(|l| l.into()).collect());
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self
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}
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}
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impl<'a, Message: 'a + Clone> Widget<Message, crate::Theme, crate::Renderer>
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for Button<'a, Message>
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{
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fn tag(&self) -> tree::Tag {
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tree::Tag::of::<State>()
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}
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fn state(&self) -> tree::State {
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tree::State::new(State::new())
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}
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fn children(&self) -> Vec<Tree> {
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vec![Tree::new(&self.content)]
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}
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fn diff(&mut self, tree: &mut Tree) {
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tree.diff_children(std::slice::from_mut(&mut self.content));
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}
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fn size(&self) -> iced_core::Size<Length> {
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iced_core::Size::new(self.width, self.height)
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}
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fn layout(
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&self,
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tree: &mut Tree,
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renderer: &crate::Renderer,
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limits: &layout::Limits,
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) -> layout::Node {
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layout(
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renderer,
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limits,
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self.width,
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self.height,
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self.padding,
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|renderer, limits| {
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self.content
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.as_widget()
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.layout(&mut tree.children[0], renderer, limits)
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},
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)
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}
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fn operate(
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&self,
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tree: &mut Tree,
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layout: Layout<'_>,
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renderer: &crate::Renderer,
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operation: &mut dyn Operation<OperationOutputWrapper<Message>>,
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) {
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operation.container(None, layout.bounds(), &mut |operation| {
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self.content.as_widget().operate(
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&mut tree.children[0],
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layout.children().next().unwrap(),
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renderer,
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operation,
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);
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});
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let state = tree.state.downcast_mut::<State>();
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operation.focusable(state, Some(&self.id));
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}
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fn on_event(
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&mut self,
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tree: &mut Tree,
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event: Event,
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layout: Layout<'_>,
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cursor: mouse::Cursor,
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renderer: &crate::Renderer,
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clipboard: &mut dyn Clipboard,
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shell: &mut Shell<'_, Message>,
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viewport: &Rectangle,
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) -> event::Status {
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if let Variant::Image {
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on_remove: Some(on_remove),
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..
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} = &self.variant
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{
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// Capture mouse/touch events on the removal button
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match event {
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Event::Mouse(mouse::Event::ButtonReleased(mouse::Button::Left))
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| Event::Touch(touch::Event::FingerPressed { .. }) => {
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if let Some(position) = cursor.position() {
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if removal_bounds(layout.bounds(), 4.0).contains(position) {
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shell.publish(on_remove.clone());
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return event::Status::Captured;
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}
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}
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}
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_ => (),
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}
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}
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if self.content.as_widget_mut().on_event(
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&mut tree.children[0],
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event.clone(),
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layout.children().next().unwrap(),
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cursor,
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renderer,
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clipboard,
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shell,
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viewport,
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) == event::Status::Captured
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{
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return event::Status::Captured;
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}
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update(
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self.id.clone(),
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event,
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layout,
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cursor,
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shell,
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&self.on_press,
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&self.on_press_down,
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|| tree.state.downcast_mut::<State>(),
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)
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}
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#[allow(clippy::too_many_lines)]
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fn draw(
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&self,
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tree: &Tree,
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renderer: &mut crate::Renderer,
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theme: &crate::Theme,
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renderer_style: &renderer::Style,
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layout: Layout<'_>,
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cursor: mouse::Cursor,
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_viewport: &Rectangle,
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) {
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let bounds = layout.bounds();
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let content_layout = layout.children().next().unwrap();
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let mut headerbar_alpha = None;
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let is_enabled = self.on_press.is_some() || self.on_press_down.is_some();
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let is_mouse_over = cursor.position().is_some_and(|p| bounds.contains(p));
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let state = tree.state.downcast_ref::<State>();
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let styling = if !is_enabled {
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theme.disabled(&self.style)
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} else if is_mouse_over {
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if state.is_pressed {
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if !self.selected && matches!(self.style, crate::theme::Button::HeaderBar) {
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headerbar_alpha = Some(0.8);
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}
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theme.pressed(state.is_focused, self.selected, &self.style)
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} else {
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if !self.selected && matches!(self.style, crate::theme::Button::HeaderBar) {
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headerbar_alpha = Some(0.8);
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}
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theme.hovered(state.is_focused, self.selected, &self.style)
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}
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} else {
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if !self.selected && matches!(self.style, crate::theme::Button::HeaderBar) {
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headerbar_alpha = Some(0.75);
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}
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theme.active(state.is_focused, self.selected, &self.style)
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};
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let mut icon_color = styling.icon_color.unwrap_or(renderer_style.icon_color);
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// Menu roots should share the accent color that icons get in the header.
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let mut text_color = if matches!(self.style, crate::theme::Button::MenuRoot) {
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icon_color
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} else {
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styling.text_color.unwrap_or(renderer_style.text_color)
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};
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if let Some(alpha) = headerbar_alpha {
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icon_color.a = alpha;
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text_color.a = alpha;
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}
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draw::<_, crate::Theme>(renderer, bounds, &styling, |renderer, _styling| {
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self.content.as_widget().draw(
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&tree.children[0],
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renderer,
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theme,
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&renderer::Style {
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icon_color,
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text_color,
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scale_factor: renderer_style.scale_factor,
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},
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content_layout,
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cursor,
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&bounds,
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);
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});
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if let Variant::Image {
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close_icon,
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on_remove,
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} = &self.variant
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{
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let selection_background = theme.selection_background();
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let c_rad = THEME.with(|t| t.borrow().cosmic().corner_radii);
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if self.selected {
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renderer.fill_quad(
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Quad {
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bounds: Rectangle {
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width: 24.0,
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height: 20.0,
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x: bounds.x + styling.border_width,
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y: bounds.y + (bounds.height - 20.0 - styling.border_width),
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},
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border: Border {
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radius: [
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c_rad.radius_0[0],
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c_rad.radius_s[1],
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c_rad.radius_0[2],
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c_rad.radius_s[3],
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]
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.into(),
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..Default::default()
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},
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shadow: Shadow::default(),
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},
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selection_background,
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);
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iced_core::svg::Renderer::draw(
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renderer,
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crate::widget::common::object_select().clone(),
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Some(icon_color),
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Rectangle {
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width: 16.0,
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height: 16.0,
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x: bounds.x + 5.0 + styling.border_width,
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y: bounds.y + (bounds.height - 18.0 - styling.border_width),
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},
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);
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}
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|
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if on_remove.is_some() {
|
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if let Some(position) = cursor.position() {
|
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if bounds.contains(position) {
|
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let bounds = removal_bounds(layout.bounds(), 4.0);
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renderer.fill_quad(
|
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renderer::Quad {
|
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bounds,
|
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shadow: Shadow::default(),
|
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border: Border {
|
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radius: c_rad.radius_m.into(),
|
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..Default::default()
|
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},
|
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},
|
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selection_background,
|
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);
|
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|
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iced_core::svg::Renderer::draw(
|
||
renderer,
|
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close_icon.clone(),
|
||
Some(icon_color),
|
||
Rectangle {
|
||
width: 16.0,
|
||
height: 16.0,
|
||
x: bounds.x + 4.0,
|
||
y: bounds.y + 4.0,
|
||
},
|
||
);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
fn mouse_interaction(
|
||
&self,
|
||
_tree: &Tree,
|
||
layout: Layout<'_>,
|
||
cursor: mouse::Cursor,
|
||
_viewport: &Rectangle,
|
||
_renderer: &crate::Renderer,
|
||
) -> mouse::Interaction {
|
||
mouse_interaction(layout, cursor, self.on_press.is_some())
|
||
}
|
||
|
||
fn overlay<'b>(
|
||
&'b mut self,
|
||
tree: &'b mut Tree,
|
||
layout: Layout<'_>,
|
||
renderer: &crate::Renderer,
|
||
) -> Option<overlay::Element<'b, Message, crate::Theme, crate::Renderer>> {
|
||
self.content.as_widget_mut().overlay(
|
||
&mut tree.children[0],
|
||
layout.children().next().unwrap(),
|
||
renderer,
|
||
)
|
||
}
|
||
|
||
#[cfg(feature = "a11y")]
|
||
/// get the a11y nodes for the widget
|
||
fn a11y_nodes(
|
||
&self,
|
||
layout: Layout<'_>,
|
||
state: &Tree,
|
||
p: mouse::Cursor,
|
||
) -> iced_accessibility::A11yTree {
|
||
use iced_accessibility::{
|
||
accesskit::{Action, DefaultActionVerb, NodeBuilder, NodeId, Rect, Role},
|
||
A11yNode, A11yTree,
|
||
};
|
||
|
||
let child_layout = layout.children().next().unwrap();
|
||
let child_tree = &state.children[0];
|
||
let child_tree = self
|
||
.content
|
||
.as_widget()
|
||
.a11y_nodes(child_layout, &child_tree, p);
|
||
|
||
let Rectangle {
|
||
x,
|
||
y,
|
||
width,
|
||
height,
|
||
} = layout.bounds();
|
||
let bounds = Rect::new(x as f64, y as f64, (x + width) as f64, (y + height) as f64);
|
||
let is_hovered = state.state.downcast_ref::<State>().is_hovered;
|
||
|
||
let mut node = NodeBuilder::new(Role::Button);
|
||
node.add_action(Action::Focus);
|
||
node.add_action(Action::Default);
|
||
node.set_bounds(bounds);
|
||
if let Some(name) = self.name.as_ref() {
|
||
node.set_name(name.clone());
|
||
}
|
||
match self.description.as_ref() {
|
||
Some(iced_accessibility::Description::Id(id)) => {
|
||
node.set_described_by(
|
||
id.iter()
|
||
.cloned()
|
||
.map(|id| NodeId::from(id))
|
||
.collect::<Vec<_>>(),
|
||
);
|
||
}
|
||
Some(iced_accessibility::Description::Text(text)) => {
|
||
node.set_description(text.clone());
|
||
}
|
||
None => {}
|
||
}
|
||
|
||
if let Some(label) = self.label.as_ref() {
|
||
node.set_labelled_by(label.clone());
|
||
}
|
||
|
||
if self.on_press.is_none() {
|
||
node.set_disabled();
|
||
}
|
||
if is_hovered {
|
||
node.set_hovered();
|
||
}
|
||
node.set_default_action_verb(DefaultActionVerb::Click);
|
||
|
||
A11yTree::node_with_child_tree(A11yNode::new(node, self.id.clone()), child_tree)
|
||
}
|
||
|
||
fn id(&self) -> Option<Id> {
|
||
Some(self.id.clone())
|
||
}
|
||
|
||
fn set_id(&mut self, id: Id) {
|
||
self.id = id;
|
||
}
|
||
}
|
||
|
||
impl<'a, Message: Clone + 'a> From<Button<'a, Message>> for crate::Element<'a, Message> {
|
||
fn from(button: Button<'a, Message>) -> Self {
|
||
Self::new(button)
|
||
}
|
||
}
|
||
|
||
/// The local state of a [`Button`].
|
||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
|
||
#[allow(clippy::struct_field_names)]
|
||
pub struct State {
|
||
is_hovered: bool,
|
||
is_pressed: bool,
|
||
is_focused: bool,
|
||
}
|
||
|
||
impl State {
|
||
/// Creates a new [`State`].
|
||
pub fn new() -> Self {
|
||
Self::default()
|
||
}
|
||
|
||
/// Returns whether the [`Button`] is currently focused or not.
|
||
pub fn is_focused(self) -> bool {
|
||
self.is_focused
|
||
}
|
||
|
||
/// Returns whether the [`Button`] is currently hovered or not.
|
||
pub fn is_hovered(self) -> bool {
|
||
self.is_hovered
|
||
}
|
||
|
||
/// Focuses the [`Button`].
|
||
pub fn focus(&mut self) {
|
||
self.is_focused = true;
|
||
}
|
||
|
||
/// Unfocuses the [`Button`].
|
||
pub fn unfocus(&mut self) {
|
||
self.is_focused = false;
|
||
}
|
||
}
|
||
|
||
/// Processes the given [`Event`] and updates the [`State`] of a [`Button`]
|
||
/// accordingly.
|
||
#[allow(clippy::needless_pass_by_value)]
|
||
pub fn update<'a, Message: Clone>(
|
||
_id: Id,
|
||
event: Event,
|
||
layout: Layout<'_>,
|
||
cursor: mouse::Cursor,
|
||
shell: &mut Shell<'_, Message>,
|
||
on_press: &Option<Message>,
|
||
on_press_down: &Option<Message>,
|
||
state: impl FnOnce() -> &'a mut State,
|
||
) -> event::Status {
|
||
match event {
|
||
Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left))
|
||
| Event::Touch(touch::Event::FingerPressed { .. }) => {
|
||
if on_press.is_some() || on_press_down.is_some() {
|
||
let bounds = layout.bounds();
|
||
|
||
if cursor.is_over(bounds) {
|
||
let state = state();
|
||
|
||
state.is_pressed = true;
|
||
|
||
if let Some(on_press_down) = on_press_down {
|
||
shell.publish(on_press_down.clone());
|
||
}
|
||
|
||
return event::Status::Captured;
|
||
}
|
||
}
|
||
}
|
||
Event::Mouse(mouse::Event::ButtonReleased(mouse::Button::Left))
|
||
| Event::Touch(touch::Event::FingerLifted { .. }) => {
|
||
if let Some(on_press) = on_press.clone() {
|
||
let state = state();
|
||
|
||
if state.is_pressed {
|
||
state.is_pressed = false;
|
||
|
||
let bounds = layout.bounds();
|
||
|
||
if cursor.is_over(bounds) {
|
||
shell.publish(on_press);
|
||
}
|
||
|
||
return event::Status::Captured;
|
||
}
|
||
} else if on_press_down.is_some() {
|
||
let state = state();
|
||
state.is_pressed = false;
|
||
}
|
||
}
|
||
#[cfg(feature = "a11y")]
|
||
Event::A11y(event_id, iced_accessibility::accesskit::ActionRequest { action, .. }) => {
|
||
let state = state();
|
||
if let Some(Some(on_press)) = (event_id == event_id
|
||
&& matches!(action, iced_accessibility::accesskit::Action::Default))
|
||
.then(|| on_press.clone())
|
||
{
|
||
state.is_pressed = false;
|
||
shell.publish(on_press);
|
||
}
|
||
return event::Status::Captured;
|
||
}
|
||
Event::Keyboard(keyboard::Event::KeyPressed { key, .. }) => {
|
||
if let Some(on_press) = on_press.clone() {
|
||
let state = state();
|
||
if state.is_focused && key == keyboard::Key::Named(keyboard::key::Named::Enter) {
|
||
state.is_pressed = true;
|
||
shell.publish(on_press);
|
||
return event::Status::Captured;
|
||
}
|
||
}
|
||
}
|
||
Event::Touch(touch::Event::FingerLost { .. }) | Event::Mouse(mouse::Event::CursorLeft) => {
|
||
let state = state();
|
||
state.is_hovered = false;
|
||
state.is_pressed = false;
|
||
}
|
||
_ => {}
|
||
}
|
||
|
||
event::Status::Ignored
|
||
}
|
||
|
||
#[allow(clippy::too_many_arguments)]
|
||
pub fn draw<Renderer: iced_core::Renderer, Theme>(
|
||
renderer: &mut Renderer,
|
||
bounds: Rectangle,
|
||
styling: &super::style::Appearance,
|
||
draw_contents: impl FnOnce(&mut Renderer, &Appearance),
|
||
) where
|
||
Theme: super::style::StyleSheet,
|
||
{
|
||
let doubled_border_width = styling.border_width * 2.0;
|
||
let doubled_outline_width = styling.outline_width * 2.0;
|
||
|
||
if styling.outline_width > 0.0 {
|
||
renderer.fill_quad(
|
||
renderer::Quad {
|
||
bounds: Rectangle {
|
||
x: bounds.x - styling.border_width - styling.outline_width,
|
||
y: bounds.y - styling.border_width - styling.outline_width,
|
||
width: bounds.width + doubled_border_width + doubled_outline_width,
|
||
height: bounds.height + doubled_border_width + doubled_outline_width,
|
||
},
|
||
border: Border {
|
||
width: styling.outline_width,
|
||
color: styling.outline_color,
|
||
radius: styling.border_radius,
|
||
},
|
||
shadow: Shadow::default(),
|
||
},
|
||
Color::TRANSPARENT,
|
||
);
|
||
}
|
||
|
||
if styling.background.is_some() || styling.border_width > 0.0 {
|
||
if styling.shadow_offset != Vector::default() {
|
||
// TODO: Implement proper shadow support
|
||
renderer.fill_quad(
|
||
renderer::Quad {
|
||
bounds: Rectangle {
|
||
x: bounds.x + styling.shadow_offset.x,
|
||
y: bounds.y + styling.shadow_offset.y,
|
||
width: bounds.width,
|
||
height: bounds.height,
|
||
},
|
||
border: Border {
|
||
radius: styling.border_radius,
|
||
..Default::default()
|
||
},
|
||
shadow: Shadow::default(),
|
||
},
|
||
Background::Color([0.0, 0.0, 0.0, 0.5].into()),
|
||
);
|
||
}
|
||
|
||
// Draw the button background first.
|
||
if let Some(background) = styling.background {
|
||
renderer.fill_quad(
|
||
renderer::Quad {
|
||
bounds,
|
||
border: Border {
|
||
radius: styling.border_radius,
|
||
..Default::default()
|
||
},
|
||
shadow: Shadow::default(),
|
||
},
|
||
background,
|
||
);
|
||
}
|
||
|
||
// Then draw the button contents onto the background.
|
||
draw_contents(renderer, styling);
|
||
|
||
// Finish by drawing the border above the contents.
|
||
renderer.fill_quad(
|
||
renderer::Quad {
|
||
bounds,
|
||
border: Border {
|
||
width: styling.border_width,
|
||
color: styling.border_color,
|
||
radius: styling.border_radius,
|
||
},
|
||
shadow: Shadow::default(),
|
||
},
|
||
Color::TRANSPARENT,
|
||
);
|
||
} else {
|
||
draw_contents(renderer, styling);
|
||
}
|
||
}
|
||
|
||
/// Computes the layout of a [`Button`].
|
||
pub fn layout<Renderer>(
|
||
renderer: &Renderer,
|
||
limits: &layout::Limits,
|
||
width: Length,
|
||
height: Length,
|
||
padding: Padding,
|
||
layout_content: impl FnOnce(&Renderer, &layout::Limits) -> layout::Node,
|
||
) -> layout::Node {
|
||
let limits = limits.width(width).height(height);
|
||
|
||
let mut content = layout_content(renderer, &limits.shrink(padding));
|
||
let padding = padding.fit(content.size(), limits.max());
|
||
let size = limits
|
||
.shrink(padding)
|
||
.resolve(width, height, content.size())
|
||
.expand(padding);
|
||
|
||
content = content.move_to(Point::new(padding.left, padding.top));
|
||
|
||
layout::Node::with_children(size, vec![content])
|
||
}
|
||
|
||
/// Returns the [`mouse::Interaction`] of a [`Button`].
|
||
#[must_use]
|
||
pub fn mouse_interaction(
|
||
layout: Layout<'_>,
|
||
cursor: mouse::Cursor,
|
||
is_enabled: bool,
|
||
) -> mouse::Interaction {
|
||
let is_mouse_over = cursor.is_over(layout.bounds());
|
||
|
||
if is_mouse_over && is_enabled {
|
||
mouse::Interaction::Pointer
|
||
} else {
|
||
mouse::Interaction::default()
|
||
}
|
||
}
|
||
|
||
/// Produces a [`Command`] that focuses the [`Button`] with the given [`Id`].
|
||
pub fn focus<Message: 'static>(id: Id) -> Command<Message> {
|
||
Command::widget(operation::focusable::focus(id))
|
||
}
|
||
|
||
impl operation::Focusable for State {
|
||
fn is_focused(&self) -> bool {
|
||
Self::is_focused(*self)
|
||
}
|
||
|
||
fn focus(&mut self) {
|
||
Self::focus(self);
|
||
}
|
||
|
||
fn unfocus(&mut self) {
|
||
Self::unfocus(self);
|
||
}
|
||
}
|
||
|
||
fn removal_bounds(bounds: Rectangle, offset: f32) -> Rectangle {
|
||
Rectangle {
|
||
x: bounds.x + bounds.width - 12.0 - offset,
|
||
y: bounds.y - 12.0 + offset,
|
||
width: 24.0,
|
||
height: 24.0,
|
||
}
|
||
}
|