panel: per-element interactibility

wlx-overlay-s/src/windowing/backend.rs

@@ -3,7 +3,7 @@ use std::sync::Arc;
 use vulkano::{format::Format, image::view::ImageView};
 
 use crate::{
-    backend::input::{Haptics, PointerHit},
+    backend::input::{HoverResult, PointerHit},
     graphics::CommandBuffers,
     state::AppState,
 };
@@ -48,7 +48,7 @@ pub trait OverlayBackend {
     /// Must be true if should_render was also true on the same frame.
     fn frame_meta(&mut self) -> Option<FrameMeta>;
 
-    fn on_hover(&mut self, app: &mut AppState, hit: &PointerHit) -> Option<Haptics>;
+    fn on_hover(&mut self, app: &mut AppState, hit: &PointerHit) -> HoverResult;
     fn on_left(&mut self, app: &mut AppState, pointer: usize);
     fn on_pointer(&mut self, app: &mut AppState, hit: &PointerHit, pressed: bool);
     fn on_scroll(&mut self, app: &mut AppState, hit: &PointerHit, delta_y: f32, delta_x: f32);

wlx-overlay-s/src/windowing/manager.rs

@@ -91,7 +91,9 @@ where
 
         Ok(me)
     }
+}
 
+impl<T> OverlayWindowManager<T> {
     pub fn mut_by_selector(
         &mut self,
         selector: &OverlaySelector,

wlx-overlay-s/src/windowing/window.rs

@@ -63,10 +63,7 @@ where
     }
 }
 
-impl<T> OverlayWindowData<T>
-where
-    T: Default,
-{
+impl<T> OverlayWindowData<T> {
     pub fn init(&mut self, app: &mut AppState) -> anyhow::Result<()> {
         //TODO: load state?