1use gpui::{AnyView, ClickEvent};
  2
  3use crate::{prelude::*, ButtonLike, ButtonLikeRounding};
  4
  5/// The position of a [`ToggleButton`] within a group of buttons.
  6#[derive(Debug, PartialEq, Eq, Clone, Copy)]
  7pub enum ToggleButtonPosition {
  8    /// The toggle button is first in the group.
  9    First,
 10
 11    /// The toggle button is in the middle of the group (i.e., it is not the first or last toggle button).
 12    Middle,
 13
 14    /// The toggle button is last in the group.
 15    Last,
 16}
 17
 18#[derive(IntoElement)]
 19pub struct ToggleButton {
 20    base: ButtonLike,
 21    position_in_group: Option<ToggleButtonPosition>,
 22    label: SharedString,
 23    label_color: Option<Color>,
 24}
 25
 26impl ToggleButton {
 27    pub fn new(id: impl Into<ElementId>, label: impl Into<SharedString>) -> Self {
 28        Self {
 29            base: ButtonLike::new(id),
 30            position_in_group: None,
 31            label: label.into(),
 32            label_color: None,
 33        }
 34    }
 35
 36    pub fn color(mut self, label_color: impl Into<Option<Color>>) -> Self {
 37        self.label_color = label_color.into();
 38        self
 39    }
 40
 41    pub fn position_in_group(mut self, position: ToggleButtonPosition) -> Self {
 42        self.position_in_group = Some(position);
 43        self
 44    }
 45
 46    pub fn first(self) -> Self {
 47        self.position_in_group(ToggleButtonPosition::First)
 48    }
 49
 50    pub fn middle(self) -> Self {
 51        self.position_in_group(ToggleButtonPosition::Middle)
 52    }
 53
 54    pub fn last(self) -> Self {
 55        self.position_in_group(ToggleButtonPosition::Last)
 56    }
 57}
 58
 59impl Selectable for ToggleButton {
 60    fn selected(mut self, selected: bool) -> Self {
 61        self.base = self.base.selected(selected);
 62        self
 63    }
 64}
 65
 66impl Disableable for ToggleButton {
 67    fn disabled(mut self, disabled: bool) -> Self {
 68        self.base = self.base.disabled(disabled);
 69        self
 70    }
 71}
 72
 73impl Clickable for ToggleButton {
 74    fn on_click(mut self, handler: impl Fn(&ClickEvent, &mut WindowContext) + 'static) -> Self {
 75        self.base = self.base.on_click(handler);
 76        self
 77    }
 78}
 79
 80impl ButtonCommon for ToggleButton {
 81    fn id(&self) -> &ElementId {
 82        self.base.id()
 83    }
 84
 85    fn style(mut self, style: ButtonStyle) -> Self {
 86        self.base = self.base.style(style);
 87        self
 88    }
 89
 90    fn size(mut self, size: ButtonSize) -> Self {
 91        self.base = self.base.size(size);
 92        self
 93    }
 94
 95    fn tooltip(mut self, tooltip: impl Fn(&mut WindowContext) -> AnyView + 'static) -> Self {
 96        self.base = self.base.tooltip(tooltip);
 97        self
 98    }
 99}
100
101impl RenderOnce for ToggleButton {
102    fn render(self, _cx: &mut WindowContext) -> impl IntoElement {
103        let is_disabled = self.base.disabled;
104        let is_selected = self.base.selected;
105
106        let label_color = if is_disabled {
107            Color::Disabled
108        } else if is_selected {
109            Color::Selected
110        } else {
111            self.label_color.unwrap_or_default()
112        };
113
114        self.base
115            .when_some(self.position_in_group, |this, position| match position {
116                ToggleButtonPosition::First => this.rounding(ButtonLikeRounding::Left),
117                ToggleButtonPosition::Middle => this.rounding(None),
118                ToggleButtonPosition::Last => this.rounding(ButtonLikeRounding::Right),
119            })
120            .child(
121                Label::new(self.label)
122                    .color(label_color)
123                    .line_height_style(LineHeightStyle::UiLabel),
124            )
125    }
126}