ZIm/crates/gpui/src/app/menu.rs

99 lines
2.5 KiB
Rust

use crate::{platform::ForegroundPlatform, Action, App, AppContext};
pub struct Menu<'a> {
pub name: &'a str,
pub items: Vec<MenuItem<'a>>,
}
pub enum MenuItem<'a> {
Separator,
Submenu(Menu<'a>),
Action {
name: &'a str,
action: Box<dyn Action>,
os_action: Option<OsAction>,
},
}
impl<'a> MenuItem<'a> {
pub fn separator() -> Self {
Self::Separator
}
pub fn submenu(menu: Menu<'a>) -> Self {
Self::Submenu(menu)
}
pub fn action(name: &'a str, action: impl Action) -> Self {
Self::Action {
name,
action: Box::new(action),
os_action: None,
}
}
pub fn os_action(name: &'a str, action: impl Action, os_action: OsAction) -> Self {
Self::Action {
name,
action: Box::new(action),
os_action: Some(os_action),
}
}
}
#[derive(Copy, Clone, Eq, PartialEq)]
pub enum OsAction {
Cut,
Copy,
Paste,
SelectAll,
Undo,
Redo,
}
impl AppContext {
pub fn set_menus(&mut self, menus: Vec<Menu>) {
self.foreground_platform
.set_menus(menus, &self.keystroke_matcher);
}
}
pub(crate) fn setup_menu_handlers(foreground_platform: &dyn ForegroundPlatform, app: &App) {
foreground_platform.on_will_open_menu(Box::new({
let cx = app.0.clone();
move || {
let mut cx = cx.borrow_mut();
cx.keystroke_matcher.clear_pending();
}
}));
foreground_platform.on_validate_menu_command(Box::new({
let cx = app.0.clone();
move |action| {
let cx = cx.borrow_mut();
!cx.keystroke_matcher.has_pending_keystrokes() && cx.is_action_available(action)
}
}));
foreground_platform.on_menu_command(Box::new({
let cx = app.0.clone();
move |action| {
let mut cx = cx.borrow_mut();
if let Some(main_window_id) = cx.platform.main_window_id() {
let dispatched = cx
.update_window(main_window_id, |cx| {
if let Some(view_id) = cx.focused_view_id() {
cx.handle_dispatch_action_from_effect(Some(view_id), action);
true
} else {
false
}
})
.unwrap_or(false);
if dispatched {
return;
}
}
cx.dispatch_global_action_any(action);
}
}));
}