ZIm/crates/ui/src/components/button/button_like.rs

451 lines
15 KiB
Rust

use gpui::{relative, DefiniteLength, MouseButton};
use gpui::{rems, transparent_black, AnyElement, AnyView, ClickEvent, Hsla, Rems};
use smallvec::SmallVec;
use crate::prelude::*;
pub trait SelectableButton: Selectable {
fn selected_style(self, style: ButtonStyle) -> Self;
}
pub trait ButtonCommon: Clickable + Disableable {
/// A unique element ID to identify the button.
fn id(&self) -> &ElementId;
/// The visual style of the button.
///
/// Most commonly will be [`ButtonStyle::Subtle`], or [`ButtonStyle::Filled`]
/// for an emphasized button.
fn style(self, style: ButtonStyle) -> Self;
/// The size of the button.
///
/// Most buttons will use the default size.
///
/// [`ButtonSize`] can also be used to help build non-button elements
/// that are consistently sized with buttons.
fn size(self, size: ButtonSize) -> Self;
/// The tooltip that shows when a user hovers over the button.
///
/// Nearly all interactable elements should have a tooltip. Some example
/// exceptions might a scroll bar, or a slider.
fn tooltip(self, tooltip: impl Fn(&mut WindowContext) -> AnyView + 'static) -> Self;
}
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Default)]
pub enum IconPosition {
#[default]
Start,
End,
}
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Default)]
pub enum TintColor {
#[default]
Accent,
Negative,
Warning,
}
impl TintColor {
fn button_like_style(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
TintColor::Accent => ButtonLikeStyles {
background: cx.theme().status().info_background,
border_color: cx.theme().status().info_border,
label_color: cx.theme().colors().text,
icon_color: cx.theme().colors().text,
},
TintColor::Negative => ButtonLikeStyles {
background: cx.theme().status().error_background,
border_color: cx.theme().status().error_border,
label_color: cx.theme().colors().text,
icon_color: cx.theme().colors().text,
},
TintColor::Warning => ButtonLikeStyles {
background: cx.theme().status().warning_background,
border_color: cx.theme().status().warning_border,
label_color: cx.theme().colors().text,
icon_color: cx.theme().colors().text,
},
}
}
}
impl From<TintColor> for Color {
fn from(tint: TintColor) -> Self {
match tint {
TintColor::Accent => Color::Accent,
TintColor::Negative => Color::Error,
TintColor::Warning => Color::Warning,
}
}
}
// Used to go from ButtonStyle -> Color through tint colors.
impl From<ButtonStyle> for Color {
fn from(style: ButtonStyle) -> Self {
match style {
ButtonStyle::Tinted(tint) => tint.into(),
_ => Color::Default,
}
}
}
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Default)]
pub enum ButtonStyle {
/// A filled button with a solid background color. Provides emphasis versus
/// the more common subtle button.
Filled,
/// Used to emphasize a button in some way, like a selected state, or a semantic
/// coloring like an error or success button.
Tinted(TintColor),
/// The default button style, used for most buttons. Has a transparent background,
/// but has a background color to indicate states like hover and active.
#[default]
Subtle,
/// Used for buttons that only change forground color on hover and active states.
///
/// TODO: Better docs for this.
Transparent,
}
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
pub(crate) enum ButtonLikeRounding {
All,
Left,
Right,
}
#[derive(Debug, Clone)]
pub(crate) struct ButtonLikeStyles {
pub background: Hsla,
#[allow(unused)]
pub border_color: Hsla,
#[allow(unused)]
pub label_color: Hsla,
#[allow(unused)]
pub icon_color: Hsla,
}
impl ButtonStyle {
pub(crate) fn enabled(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
ButtonStyle::Filled => ButtonLikeStyles {
background: cx.theme().colors().element_background,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Tinted(tint) => tint.button_like_style(cx),
ButtonStyle::Subtle => ButtonLikeStyles {
background: cx.theme().colors().ghost_element_background,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Transparent => ButtonLikeStyles {
background: transparent_black(),
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
}
}
pub(crate) fn hovered(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
ButtonStyle::Filled => ButtonLikeStyles {
background: cx.theme().colors().element_hover,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Tinted(tint) => tint.button_like_style(cx),
ButtonStyle::Subtle => ButtonLikeStyles {
background: cx.theme().colors().ghost_element_hover,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Transparent => ButtonLikeStyles {
background: transparent_black(),
border_color: transparent_black(),
// TODO: These are not great
label_color: Color::Muted.color(cx),
// TODO: These are not great
icon_color: Color::Muted.color(cx),
},
}
}
pub(crate) fn active(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
ButtonStyle::Filled => ButtonLikeStyles {
background: cx.theme().colors().element_active,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Tinted(tint) => tint.button_like_style(cx),
ButtonStyle::Subtle => ButtonLikeStyles {
background: cx.theme().colors().ghost_element_active,
border_color: transparent_black(),
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Transparent => ButtonLikeStyles {
background: transparent_black(),
border_color: transparent_black(),
// TODO: These are not great
label_color: Color::Muted.color(cx),
// TODO: These are not great
icon_color: Color::Muted.color(cx),
},
}
}
#[allow(unused)]
pub(crate) fn focused(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
ButtonStyle::Filled => ButtonLikeStyles {
background: cx.theme().colors().element_background,
border_color: cx.theme().colors().border_focused,
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Tinted(tint) => tint.button_like_style(cx),
ButtonStyle::Subtle => ButtonLikeStyles {
background: cx.theme().colors().ghost_element_background,
border_color: cx.theme().colors().border_focused,
label_color: Color::Default.color(cx),
icon_color: Color::Default.color(cx),
},
ButtonStyle::Transparent => ButtonLikeStyles {
background: transparent_black(),
border_color: cx.theme().colors().border_focused,
label_color: Color::Accent.color(cx),
icon_color: Color::Accent.color(cx),
},
}
}
#[allow(unused)]
pub(crate) fn disabled(self, cx: &mut WindowContext) -> ButtonLikeStyles {
match self {
ButtonStyle::Filled => ButtonLikeStyles {
background: cx.theme().colors().element_disabled,
border_color: cx.theme().colors().border_disabled,
label_color: Color::Disabled.color(cx),
icon_color: Color::Disabled.color(cx),
},
ButtonStyle::Tinted(tint) => tint.button_like_style(cx),
ButtonStyle::Subtle => ButtonLikeStyles {
background: cx.theme().colors().ghost_element_disabled,
border_color: cx.theme().colors().border_disabled,
label_color: Color::Disabled.color(cx),
icon_color: Color::Disabled.color(cx),
},
ButtonStyle::Transparent => ButtonLikeStyles {
background: transparent_black(),
border_color: transparent_black(),
label_color: Color::Disabled.color(cx),
icon_color: Color::Disabled.color(cx),
},
}
}
}
/// ButtonSize can also be used to help build non-button elements
/// that are consistently sized with buttons.
#[derive(Default, PartialEq, Clone, Copy)]
pub enum ButtonSize {
Large,
#[default]
Default,
Compact,
None,
}
impl ButtonSize {
fn height(self) -> Rems {
match self {
ButtonSize::Large => rems(32. / 16.),
ButtonSize::Default => rems(22. / 16.),
ButtonSize::Compact => rems(18. / 16.),
ButtonSize::None => rems(16. / 16.),
}
}
}
/// A button-like element that can be used to create a custom button when
/// prebuilt buttons are not sufficient. Use this sparingly, as it is
/// unconstrained and may make the UI feel less consistent.
///
/// This is also used to build the prebuilt buttons.
#[derive(IntoElement)]
pub struct ButtonLike {
base: Div,
id: ElementId,
pub(super) style: ButtonStyle,
pub(super) disabled: bool,
pub(super) selected: bool,
pub(super) selected_style: Option<ButtonStyle>,
pub(super) width: Option<DefiniteLength>,
size: ButtonSize,
rounding: Option<ButtonLikeRounding>,
tooltip: Option<Box<dyn Fn(&mut WindowContext) -> AnyView>>,
on_click: Option<Box<dyn Fn(&ClickEvent, &mut WindowContext) + 'static>>,
children: SmallVec<[AnyElement; 2]>,
}
impl ButtonLike {
pub fn new(id: impl Into<ElementId>) -> Self {
Self {
base: div(),
id: id.into(),
style: ButtonStyle::default(),
disabled: false,
selected: false,
selected_style: None,
width: None,
size: ButtonSize::Default,
rounding: Some(ButtonLikeRounding::All),
tooltip: None,
children: SmallVec::new(),
on_click: None,
}
}
pub(crate) fn rounding(mut self, rounding: impl Into<Option<ButtonLikeRounding>>) -> Self {
self.rounding = rounding.into();
self
}
}
impl Disableable for ButtonLike {
fn disabled(mut self, disabled: bool) -> Self {
self.disabled = disabled;
self
}
}
impl Selectable for ButtonLike {
fn selected(mut self, selected: bool) -> Self {
self.selected = selected;
self
}
}
impl SelectableButton for ButtonLike {
fn selected_style(mut self, style: ButtonStyle) -> Self {
self.selected_style = Some(style);
self
}
}
impl Clickable for ButtonLike {
fn on_click(mut self, handler: impl Fn(&ClickEvent, &mut WindowContext) + 'static) -> Self {
self.on_click = Some(Box::new(handler));
self
}
}
impl FixedWidth for ButtonLike {
fn width(mut self, width: DefiniteLength) -> Self {
self.width = Some(width);
self
}
fn full_width(mut self) -> Self {
self.width = Some(relative(1.));
self
}
}
impl ButtonCommon for ButtonLike {
fn id(&self) -> &ElementId {
&self.id
}
fn style(mut self, style: ButtonStyle) -> Self {
self.style = style;
self
}
fn size(mut self, size: ButtonSize) -> Self {
self.size = size;
self
}
fn tooltip(mut self, tooltip: impl Fn(&mut WindowContext) -> AnyView + 'static) -> Self {
self.tooltip = Some(Box::new(tooltip));
self
}
}
impl VisibleOnHover for ButtonLike {
fn visible_on_hover(mut self, group_name: impl Into<SharedString>) -> Self {
self.base = self.base.visible_on_hover(group_name);
self
}
}
impl ParentElement for ButtonLike {
fn children_mut(&mut self) -> &mut SmallVec<[AnyElement; 2]> {
&mut self.children
}
}
impl RenderOnce for ButtonLike {
fn render(self, cx: &mut WindowContext) -> impl IntoElement {
let style = self
.selected_style
.filter(|_| self.selected)
.unwrap_or(self.style);
self.base
.h_flex()
.id(self.id.clone())
.group("")
.flex_none()
.h(self.size.height())
.when_some(self.width, |this, width| this.w(width).justify_center())
.when_some(self.rounding, |this, rounding| match rounding {
ButtonLikeRounding::All => this.rounded_md(),
ButtonLikeRounding::Left => this.rounded_l_md(),
ButtonLikeRounding::Right => this.rounded_r_md(),
})
.gap_1()
.map(|this| match self.size {
ButtonSize::Large => this.px_2(),
ButtonSize::Default | ButtonSize::Compact => this.px_1(),
ButtonSize::None => this,
})
.bg(style.enabled(cx).background)
.when(self.disabled, |this| this.cursor_not_allowed())
.when(!self.disabled, |this| {
this.cursor_pointer()
.hover(|hover| hover.bg(style.hovered(cx).background))
.active(|active| active.bg(style.active(cx).background))
})
.when_some(
self.on_click.filter(|_| !self.disabled),
|this, on_click| {
this.on_mouse_down(MouseButton::Left, |_, cx| cx.prevent_default())
.on_click(move |event, cx| {
cx.stop_propagation();
(on_click)(event, cx)
})
},
)
.when_some(self.tooltip, |this, tooltip| {
this.tooltip(move |cx| tooltip(cx))
})
.children(self.children)
}
}