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use crate::{
button::{Button, ButtonVariants as _},
h_flex, v_flex, ActiveTheme as _, Collapsible, Icon, IconName, Sizable as _, StyledExt,
};
use gpui::{
div, percentage, prelude::FluentBuilder as _, AnyElement, App, ClickEvent, ElementId,
InteractiveElement as _, IntoElement, ParentElement as _, RenderOnce, SharedString,
StatefulInteractiveElement as _, StyleRefinement, Styled, Window,
};
use std::rc::Rc;
/// Menu for the [`super::Sidebar`]
#[derive(IntoElement)]
pub struct SidebarMenu {
style: StyleRefinement,
collapsed: bool,
items: Vec<SidebarMenuItem>,
}
impl SidebarMenu {
/// Create a new SidebarMenu
pub fn new() -> Self {
Self {
style: StyleRefinement::default(),
items: Vec::new(),
collapsed: false,
}
}
/// Add a [`SidebarMenuItem`] child menu item to the sidebar menu.
///
/// See also [`SidebarMenu::children`].
pub fn child(mut self, child: impl Into<SidebarMenuItem>) -> Self {
self.items.push(child.into());
self
}
/// Add multiple [`SidebarMenuItem`] child menu items to the sidebar menu.
pub fn children(
mut self,
children: impl IntoIterator<Item = impl Into<SidebarMenuItem>>,
) -> Self {
self.items = children.into_iter().map(Into::into).collect();
self
}
}
impl Collapsible for SidebarMenu {
fn is_collapsed(&self) -> bool {
self.collapsed
}
fn collapsed(mut self, collapsed: bool) -> Self {
self.collapsed = collapsed;
self
}
}
impl Styled for SidebarMenu {
fn style(&mut self) -> &mut StyleRefinement {
&mut self.style
}
}
impl RenderOnce for SidebarMenu {
fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement {
v_flex().gap_2().refine_style(&self.style).children(
self.items
.into_iter()
.enumerate()
.map(|(ix, item)| item.id(ix).collapsed(self.collapsed)),
)
}
}
/// Menu item for the [`SidebarMenu`]
#[derive(IntoElement)]
pub struct SidebarMenuItem {
id: ElementId,
icon: Option<Icon>,
label: SharedString,
handler: Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>,
active: bool,
default_open: bool,
click_to_open: bool,
collapsed: bool,
children: Vec<Self>,
suffix: Option<AnyElement>,
disabled: bool,
}
impl SidebarMenuItem {
/// Create a new [`SidebarMenuItem`] with a label.
pub fn new(label: impl Into<SharedString>) -> Self {
Self {
id: ElementId::Integer(0),
icon: None,
label: label.into(),
handler: Rc::new(|_, _, _| {}),
active: false,
collapsed: false,
default_open: false,
click_to_open: false,
children: Vec::new(),
suffix: None,
disabled: false,
}
}
/// Set the icon for the menu item
pub fn icon(mut self, icon: impl Into<Icon>) -> Self {
self.icon = Some(icon.into());
self
}
/// Set the active state of the menu item
pub fn active(mut self, active: bool) -> Self {
self.active = active;
self
}
/// Add a click handler to the menu item
pub fn on_click(
mut self,
handler: impl Fn(&ClickEvent, &mut Window, &mut App) + 'static,
) -> Self {
self.handler = Rc::new(handler);
self
}
/// Set the collapsed state of the menu item
pub fn collapsed(mut self, collapsed: bool) -> Self {
self.collapsed = collapsed;
self
}
/// Set the default open state of the Submenu, default is `false`.
///
/// This only used on initial render, the internal state will be used afterwards.
pub fn default_open(mut self, open: bool) -> Self {
self.default_open = open;
self
}
/// Set whether clicking the menu item open the submenu.
///
/// Default is `false`.
///
/// If `false` we only handle open/close via the caret button.
pub fn click_to_open(mut self, click_to_open: bool) -> Self {
self.click_to_open = click_to_open;
self
}
pub fn children(mut self, children: impl IntoIterator<Item = impl Into<Self>>) -> Self {
self.children = children.into_iter().map(Into::into).collect();
self
}
/// Set the suffix for the menu item.
pub fn suffix(mut self, suffix: impl IntoElement) -> Self {
self.suffix = Some(suffix.into_any_element());
self
}
/// Set disabled flat for menu item.
pub fn disable(mut self, disable: bool) -> Self {
self.disabled = disable;
self
}
/// Set id to the menu item.
fn id(mut self, id: impl Into<ElementId>) -> Self {
self.id = id.into();
self
}
fn is_submenu(&self) -> bool {
self.children.len() > 0
}
}
impl RenderOnce for SidebarMenuItem {
fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement {
let click_to_open = self.click_to_open;
let default_open = self.default_open;
let open_state = window.use_keyed_state(self.id.clone(), cx, |_, _| default_open);
let handler = self.handler.clone();
let is_collapsed = self.collapsed;
let is_active = self.active;
let is_hoverable = !is_active && !self.disabled;
let is_disabled = self.disabled;
let is_submenu = self.is_submenu();
let is_open = is_submenu && !is_collapsed && *open_state.read(cx);
div()
.id(self.id.clone())
.w_full()
.child(
h_flex()
.size_full()
.id("item")
.overflow_x_hidden()
.flex_shrink_0()
.p_2()
.gap_x_2()
.rounded(cx.theme().radius)
.text_sm()
.when(is_hoverable, |this| {
this.hover(|this| {
this.bg(cx.theme().sidebar_accent.opacity(0.8))
.text_color(cx.theme().sidebar_accent_foreground)
})
})
.when(is_active, |this| {
this.font_medium()
.bg(cx.theme().sidebar_accent)
.text_color(cx.theme().sidebar_accent_foreground)
})
.when_some(self.icon.clone(), |this, icon| this.child(icon))
.when(is_collapsed, |this| {
this.justify_center().when(is_active, |this| {
this.bg(cx.theme().sidebar_accent)
.text_color(cx.theme().sidebar_accent_foreground)
})
})
.when(!is_collapsed, |this| {
this.h_7()
.child(
h_flex()
.flex_1()
.gap_x_2()
.justify_between()
.overflow_x_hidden()
.child(
h_flex()
.flex_1()
.overflow_x_hidden()
.child(self.label.clone()),
)
.when_some(self.suffix, |this, suffix| this.child(suffix)),
)
.when(is_submenu, |this| {
this.child(
Button::new("caret")
.xsmall()
.ghost()
.icon(
Icon::new(IconName::ChevronRight)
.size_4()
.when(is_open, |this| {
this.rotate(percentage(90. / 360.))
}),
)
.on_click({
let open_state = open_state.clone();
move |_, _, cx| {
// Avoid trigger item click, just expand/collapse submenu
cx.stop_propagation();
open_state.update(cx, |is_open, cx| {
*is_open = !*is_open;
cx.notify();
})
}
}),
)
})
})
.when(is_disabled, |this| {
this.text_color(cx.theme().muted_foreground)
})
.when(!is_disabled, |this| {
this.on_click({
let open_state = open_state.clone();
move |ev, window, cx| {
if click_to_open {
open_state.update(cx, |is_open, cx| {
*is_open = true;
cx.notify();
});
}
handler(ev, window, cx)
}
})
}),
)
.when(is_open, |this| {
this.child(
v_flex()
.id("submenu")
.border_l_1()
.border_color(cx.theme().sidebar_border)
.gap_1()
.ml_3p5()
.pl_2p5()
.py_0p5()
.children(
self.children
.into_iter()
.enumerate()
.map(|(ix, item)| item.id(ix)),
),
)
})
}
}