1//! # panel
 2use gpui::actions;
 3use ui::{prelude::*, Tab};
 4
 5actions!(panel, [NextPanelTab, PreviousPanelTab]);
 6
 7pub trait PanelHeader: workspace::Panel {
 8    fn header_height(&self, cx: &mut App) -> Pixels {
 9        Tab::container_height(cx)
10    }
11
12    fn panel_header_container(&self, _window: &mut Window, cx: &mut App) -> Div {
13        h_flex()
14            .h(self.header_height(cx))
15            .w_full()
16            .px_1()
17            .flex_none()
18            .border_b_1()
19            .border_color(cx.theme().colors().border)
20    }
21}
22
23/// Implement this trait to enable a panel to have tabs.
24pub trait PanelTabs: PanelHeader {
25    /// Returns the index of the currently selected tab.
26    fn selected_tab(&self, cx: &mut App) -> usize;
27    /// Selects the tab at the given index.
28    fn select_tab(&self, cx: &mut App, index: usize);
29    /// Moves to the next tab.
30    fn next_tab(&self, _: NextPanelTab, cx: &mut App) -> Self;
31    /// Moves to the previous tab.
32    fn previous_tab(&self, _: PreviousPanelTab, cx: &mut App) -> Self;
33}
34
35#[derive(IntoElement)]
36pub struct PanelTab {}
37
38impl RenderOnce for PanelTab {
39    fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement {
40        div()
41    }
42}
43
44pub fn panel_button(label: impl Into<SharedString>) -> ui::Button {
45    let label = label.into();
46    let id = ElementId::Name(label.clone().to_lowercase().replace(' ', "_").into());
47    ui::Button::new(id, label)
48        .label_size(ui::LabelSize::Small)
49        .layer(ui::ElevationIndex::Surface)
50        .size(ui::ButtonSize::Compact)
51}
52
53pub fn panel_filled_button(label: impl Into<SharedString>) -> ui::Button {
54    panel_button(label).style(ui::ButtonStyle::Filled)
55}
56
57pub fn panel_icon_button(id: impl Into<SharedString>, icon: IconName) -> ui::IconButton {
58    let id = ElementId::Name(id.into());
59    ui::IconButton::new(id, icon)
60        .layer(ui::ElevationIndex::Surface)
61        .size(ui::ButtonSize::Compact)
62}
63
64pub fn panel_filled_icon_button(id: impl Into<SharedString>, icon: IconName) -> ui::IconButton {
65    panel_icon_button(id, icon).style(ui::ButtonStyle::Filled)
66}