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Avoid unnecessary code action requests when applying leader updates to an editor

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This commit is contained in:
Max Brunsfeld 2023-05-18 14:46:23 -07:00
parent 2883d6f1ef
commit 58f704abcb
2 changed files with 43 additions and 4 deletions
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40
crates/editor/src/multi_buffer.rs
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@ -1167,6 +1167,9 @@ impl MultiBuffer {
) {
self.sync(cx);
let ids = excerpt_ids.into_iter().collect::<Vec<_>>();
if ids.is_empty() {
return;
}
let mut buffers = self.buffers.borrow_mut();
let mut snapshot = self.snapshot.borrow_mut();
@ -4100,19 +4103,25 @@ mod tests {
let leader_multibuffer = cx.add_model(|_| MultiBuffer::new(0));
let follower_multibuffer = cx.add_model(|_| MultiBuffer::new(0));
let follower_edit_event_count = Rc::new(RefCell::new(0));
follower_multibuffer.update(cx, |_, cx| {
cx.subscribe(&leader_multibuffer, |follower, _, event, cx| {
match event.clone() {
let follower_edit_event_count = follower_edit_event_count.clone();
cx.subscribe(
&leader_multibuffer,
move |follower, _, event, cx| match event.clone() {
Event::ExcerptsAdded {
buffer,
predecessor,
excerpts,
} => follower.insert_excerpts_with_ids_after(predecessor, buffer, excerpts, cx),
Event::ExcerptsRemoved { ids } => follower.remove_excerpts(ids, cx),
Event::Edited => {
*follower_edit_event_count.borrow_mut() += 1;
}
_ => {}
}
})
},
)
.detach();
});
@ -4151,6 +4160,7 @@ mod tests {
leader_multibuffer.read(cx).snapshot(cx).text(),
follower_multibuffer.read(cx).snapshot(cx).text(),
);
assert_eq!(*follower_edit_event_count.borrow(), 2);
leader_multibuffer.update(cx, |leader, cx| {
let excerpt_ids = leader.excerpt_ids();
@ -4160,6 +4170,27 @@ mod tests {
leader_multibuffer.read(cx).snapshot(cx).text(),
follower_multibuffer.read(cx).snapshot(cx).text(),
);
assert_eq!(*follower_edit_event_count.borrow(), 3);
// Removing an empty set of excerpts is a noop.
leader_multibuffer.update(cx, |leader, cx| {
leader.remove_excerpts([], cx);
});
assert_eq!(
leader_multibuffer.read(cx).snapshot(cx).text(),
follower_multibuffer.read(cx).snapshot(cx).text(),
);
assert_eq!(*follower_edit_event_count.borrow(), 3);
// Adding an empty set of excerpts is a noop.
leader_multibuffer.update(cx, |leader, cx| {
leader.push_excerpts::<usize>(buffer_2.clone(), [], cx);
});
assert_eq!(
leader_multibuffer.read(cx).snapshot(cx).text(),
follower_multibuffer.read(cx).snapshot(cx).text(),
);
assert_eq!(*follower_edit_event_count.borrow(), 3);
leader_multibuffer.update(cx, |leader, cx| {
leader.clear(cx);
@ -4168,6 +4199,7 @@ mod tests {
leader_multibuffer.read(cx).snapshot(cx).text(),
follower_multibuffer.read(cx).snapshot(cx).text(),
);
assert_eq!(*follower_edit_event_count.borrow(), 4);
}
#[gpui::test]