move mouse move-scroll exclusivity to hid module

src/backend/input.rs

@@ -370,18 +370,13 @@ where
         );
     }
 
-    let scroll_threshold = 0.1;
-    let mut haptics: Option<Haptics> = None;
-
     // Pass mouse motion events only if not scrolling
     // (allows scrolling on all Chromium-based applications)
-    if app.input_state.pointers[idx].now.scroll.abs() <= scroll_threshold {
-        haptics = hovered.backend.on_hover(app, &hit);
-    }
+    let haptics = hovered.backend.on_hover(app, &hit);
 
     pointer = &mut app.input_state.pointers[idx];
 
-    if pointer.now.scroll.abs() > scroll_threshold {
+    if pointer.now.scroll.abs() > 0.1 {
         let scroll = pointer.now.scroll;
         if app.input_state.pointers[1 - idx]
             .interaction

src/hid/mod.rs

@@ -242,7 +242,7 @@ impl HidProvider for UInputProvider {
         self.desktop_origin = origin;
     }
     fn mouse_move(&mut self, pos: Vec2) {
-        if self.current_action.pos.is_none() {
+        if self.current_action.pos.is_none() && self.current_action.scroll.is_none() {
             self.current_action.pos = Some(pos);
         }
         self.current_action.last_requested_pos = Some(pos);
@@ -256,6 +256,9 @@ impl HidProvider for UInputProvider {
     fn wheel(&mut self, delta: i32) {
         if self.current_action.scroll.is_none() {
             self.current_action.scroll = Some(delta);
+            // Pass mouse motion events only if not scrolling
+            // (allows scrolling on all Chromium-based applications)
+            self.current_action.pos = None;
         }
     }
     fn commit(&mut self) {