1use gpui::{div, Element, ParentElement};
 2
 3use crate::{Icon, IconElement, IconSize, TextColor};
 4
 5/// Whether the entry is toggleable, and if so, whether it is currently toggled.
 6///
 7/// To make an element toggleable, simply add a `Toggle::Toggled(_)` and handle it's cases.
 8///
 9/// You can check if an element is toggleable with `.is_toggleable()`
10///
11/// Possible values:
12/// - `Toggle::NotToggleable` - The entry is not toggleable
13/// - `Toggle::Toggled(true)` - The entry is toggleable and toggled
14/// - `Toggle::Toggled(false)` - The entry is toggleable and not toggled
15#[derive(Debug, Copy, Clone, PartialEq, Eq)]
16pub enum Toggle {
17    NotToggleable,
18    Toggled(bool),
19}
20
21impl Toggle {
22    /// Returns true if the entry is toggled (or is not toggleable.)
23    ///
24    /// As element that isn't toggleable is always "expanded" or "enabled"
25    /// returning true in that case makes sense.
26    pub fn is_toggled(&self) -> bool {
27        match self {
28            Self::Toggled(false) => false,
29            _ => true,
30        }
31    }
32
33    pub fn is_toggleable(&self) -> bool {
34        match self {
35            Self::Toggled(_) => true,
36            _ => false,
37        }
38    }
39}
40
41impl From<bool> for Toggle {
42    fn from(toggled: bool) -> Self {
43        Toggle::Toggled(toggled)
44    }
45}
46
47pub fn disclosure_control(toggle: Toggle) -> impl Element {
48    match (toggle.is_toggleable(), toggle.is_toggled()) {
49        (false, _) => div(),
50        (_, true) => div().child(
51            IconElement::new(Icon::ChevronDown)
52                .color(TextColor::Muted)
53                .size(IconSize::Small),
54        ),
55        (_, false) => div().child(
56            IconElement::new(Icon::ChevronRight)
57                .color(TextColor::Muted)
58                .size(IconSize::Small),
59        ),
60    }
61}