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Enable and disable application menu items based on the active view

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This commit is contained in:
Max Brunsfeld 2022-05-19 16:24:02 -07:00
parent c4554c1720
commit ea85473f4f
4 changed files with 56 additions and 0 deletions
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26
crates/gpui/src/platform/mac/platform.rs
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@ -89,6 +89,10 @@ unsafe fn build_classes() {
sel!(handleGPUIMenuItem:),
handle_menu_item as extern "C" fn(&mut Object, Sel, id),
);
decl.add_method(
sel!(validateMenuItem:),
validate_menu_item as extern "C" fn(&mut Object, Sel, id) -> bool,
);
decl.add_method(
sel!(application:openURLs:),
open_urls as extern "C" fn(&mut Object, Sel, id, id),
@ -107,6 +111,7 @@ pub struct MacForegroundPlatformState {
quit: Option<Box<dyn FnMut()>>,
event: Option<Box<dyn FnMut(crate::Event) -> bool>>,
menu_command: Option<Box<dyn FnMut(&dyn Action)>>,
validate_menu_command: Option<Box<dyn FnMut(&dyn Action) -> bool>>,
open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
finish_launching: Option<Box<dyn FnOnce() -> ()>>,
menu_actions: Vec<Box<dyn Action>>,
@ -237,6 +242,10 @@ impl platform::ForegroundPlatform for MacForegroundPlatform {
self.0.borrow_mut().menu_command = Some(callback);
}
fn on_validate_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
self.0.borrow_mut().validate_menu_command = Some(callback);
}
fn set_menus(&self, menus: Vec<Menu>, keystroke_matcher: &keymap::Matcher) {
unsafe {
let app: id = msg_send![APP_CLASS, sharedApplication];
@ -738,6 +747,23 @@ extern "C" fn handle_menu_item(this: &mut Object, _: Sel, item: id) {
}
}
extern "C" fn validate_menu_item(this: &mut Object, _: Sel, item: id) -> bool {
unsafe {
let mut result = false;
let platform = get_foreground_platform(this);
let mut platform = platform.0.borrow_mut();
if let Some(mut callback) = platform.validate_menu_command.take() {
let tag: NSInteger = msg_send![item, tag];
let index = tag as usize;
if let Some(action) = platform.menu_actions.get(index) {
result = callback(action.as_ref());
}
platform.validate_menu_command = Some(callback);
}
result
}
}
unsafe fn ns_string(string: &str) -> id {
NSString::alloc(nil).init_str(string).autorelease()
}