Skip cursor tracking when unnecessary

src/lib.rs

@@ -120,41 +120,41 @@ fn update_tooltip_context(
     let _old_state = ctx.state;
 
     // Detect cursor movement.
-    for (camera, camera_gt) in &camera_query {
-        let RenderTarget::Window(window) = camera.target else {
-            continue;
-        };
-        let window = match window {
-            WindowRef::Primary => cq!(primary_window_query.get_single()),
-            WindowRef::Entity(id) => id,
-        };
-        let window = c!(window_query.get(window));
-        cq!(window.focused);
-        let cursor_pos = cq!(window
-            .cursor_position()
-            .and_then(|cursor| camera.viewport_to_world_2d(camera_gt, cursor)));
-
-        // Reset activation delay on cursor move.
-        if ctx.cursor_pos != cursor_pos
-            && matches!(ctx.state, TooltipState::Delayed)
-            && ctx.activation.reset_delay_on_cursor_move
-        {
-            ctx.timer = ctx.activation.delay;
-        }
+    if (matches!(ctx.state, TooltipState::Delayed) && ctx.activation.reset_delay_on_cursor_move)
+        || (matches!(ctx.state, TooltipState::Active) && ctx.activation.radius.is_finite())
+    {
+        for (camera, camera_gt) in &camera_query {
+            let RenderTarget::Window(window) = camera.target else {
+                continue;
+            };
+            let window = match window {
+                WindowRef::Primary => cq!(primary_window_query.get_single()),
+                WindowRef::Entity(id) => id,
+            };
+            let window = c!(window_query.get(window));
+            cq!(window.focused);
+            let cursor_pos = cq!(window
+                .cursor_position()
+                .and_then(|cursor| camera.viewport_to_world_2d(camera_gt, cursor)));
+
+            // Reset activation delay on cursor move.
+            if matches!(ctx.state, TooltipState::Delayed)
+                && ctx.activation.reset_delay_on_cursor_move
+                && ctx.cursor_pos != cursor_pos
+            {
+                ctx.cursor_pos = cursor_pos;
+                ctx.timer = ctx.activation.delay;
+            }
 
-        // Dismiss tooltip if cursor has left the activation radius.
-        if matches!(ctx.state, TooltipState::Active)
-            && ctx.cursor_pos.distance_squared(cursor_pos) > ctx.activation.radius
-        {
-            ctx.state = TooltipState::Dismissed;
-        }
+            // Dismiss tooltip if cursor has left the activation radius.
+            if matches!(ctx.state, TooltipState::Active)
+                && ctx.cursor_pos.distance_squared(cursor_pos) > ctx.activation.radius
+            {
+                ctx.state = TooltipState::Dismissed;
+            }
 
-        // Update cursor position.
-        if !matches!(ctx.state, TooltipState::Active) {
-            ctx.cursor_pos = cursor_pos;
+            break;
         }
-
-        break;
     }
 
     // Tick timer for transfer timeout / activation delay.