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Code Issues Projects Releases Packages Wiki Activity Actions 9

Make MouseRegion Click handlers, also handle Down events by default.

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This commit is contained in:
K Simmons 2022-09-11 14:19:35 -07:00
parent 6555d6f1c9
commit 28965dc5b6
2 changed files with 28 additions and 9 deletions
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29
crates/gpui/src/presenter.rs
View file

@ -443,6 +443,8 @@ impl Presenter {
//3. Fire region events
let hovered_region_ids = self.hovered_region_ids.clone();
for valid_region in valid_regions.into_iter() {
let mut event_cx = self.build_event_context(&mut invalidated_views, cx);
region_event.set_region(valid_region.bounds);
if let MouseRegionEvent::Hover(e) = &mut region_event {
e.started = valid_region
@ -450,25 +452,34 @@ impl Presenter {
.map(|region_id| hovered_region_ids.contains(&region_id))
.unwrap_or(false)
}
// Handle Down events if the MouseRegion has a Click handler. This makes the api more intuitive as you would
// not expect a MouseRegion to be transparent to Down events if it also has a Click handler.
// This behavior can be overridden by adding a Down handler that calls cx.propogate_event
if let MouseRegionEvent::Down(e) = &region_event {
if valid_region
.handlers
.contains_handler(MouseRegionEvent::click_disc(), Some(e.button))
{
event_cx.handled = true;
}
}
if let Some(callback) = valid_region.handlers.get(&region_event.handler_key()) {
invalidated_views.insert(valid_region.view_id);
let mut event_cx = self.build_event_context(&mut invalidated_views, cx);
event_cx.handled = true;
event_cx.invalidated_views.insert(valid_region.view_id);
event_cx.with_current_view(valid_region.view_id, {
let region_event = region_event.clone();
|cx| {
callback(region_event, cx);
}
});
}
any_event_handled = any_event_handled || event_cx.handled;
// For bubbling events, if the event was handled, don't continue dispatching
// This only makes sense for local events.
if event_cx.handled && region_event.is_capturable() {
break;
}
any_event_handled = any_event_handled || event_cx.handled;
// For bubbling events, if the event was handled, don't continue dispatching
// This only makes sense for local events.
if event_cx.handled && region_event.is_capturable() {
break;
}
}
}

8
crates/gpui/src/scene/mouse_region.rs
View file

@ -196,6 +196,14 @@ impl HandlerSet {
self.set.get(key).cloned()
}
pub fn contains_handler(
&self,
event: Discriminant<MouseRegionEvent>,
button: Option<MouseButton>,
) -> bool {
self.set.contains_key(&(event, button))
}
pub fn on_move(
mut self,
handler: impl Fn(MoveRegionEvent, &mut EventContext) + 'static,