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Introduce ViewContext::on_blur

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Co-Authored-By: Marshall <marshall@zed.dev>
This commit is contained in:
Antonio Scandurra 2023-11-08 19:09:01 +01:00
parent 2fd8b1f489
commit 14b41d657d
2 changed files with 24 additions and 5 deletions
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4
crates/gpui2/src/scene.rs
View file

@ -43,10 +43,6 @@ impl Default for SceneBuilder {
}
impl SceneBuilder {
pub fn new() -> SceneBuilder {
SceneBuilder::default()
}
pub fn build(&mut self) -> Scene {
// Map each layer id to a float between 0. and 1., with 1. closer to the viewer.
let mut layer_z_values = vec![0.; self.layers_by_order.len()];

25
crates/gpui2/src/window.rs
View file

@ -1949,6 +1949,29 @@ impl<'a, V: 'static> ViewContext<'a, V> {
)
}
/// Register a listener to be called when the given focus handle loses focus.
/// Unlike [on_focus_changed], returns a subscription and persists until the subscription
/// is dropped.
pub fn on_blur(
&mut self,
handle: &FocusHandle,
mut listener: impl FnMut(&mut V, &mut ViewContext<V>) + 'static,
) -> Subscription {
let view = self.view.downgrade();
let focus_id = handle.id;
self.window.focus_listeners.insert(
(),
Box::new(move |event, cx| {
view.update(cx, |view, cx| {
if event.blurred.as_ref().map(|blurred| blurred.id) == Some(focus_id) {
listener(view, cx)
}
})
.is_ok()
}),
)
}
/// Register a listener to be called when the given focus handle or one of its descendants loses focus.
/// Unlike [on_focus_changed], returns a subscription and persists until the subscription
/// is dropped.
@ -1966,7 +1989,7 @@ impl<'a, V: 'static> ViewContext<'a, V> {
if event
.blurred
.as_ref()
.map_or(false, |focused| focus_id.contains(focused.id, cx))
.map_or(false, |blurred| focus_id.contains(blurred.id, cx))
{
listener(view, cx)
}