bevy-inspector-egui does not block picking events unless bevy_egui is explicitly added as a dependency

[fedoraiver]

I ran into a strange issue when using bevy-inspector-egui together with bevy_picking.

The egui inspector UI does not block picking events on lower entities unless I explicitly add bevy_egui as a dependency in my Cargo.toml. If I only include bevy-inspector-egui, the egui windows works , but pointer events will fall through to underlying pickable entities in the world.

Adding bevy_egui to my dependencies (even without using it directly) solves the problem and allows the UI to properly block pointer interaction with the world.

I haven’t read through the plugin’s source code in detail, so I might be missing something obvious. Just wanted to report this in case it’s unexpected behavior or could help improve compatibility out of the box.

Let me know if you need a minimal reproducible example — I’d be happy to provide one.

[jakobhellermann]

I'm assuming this is because I'm depending on bevy_egui without default features.

I'm undecided what the best course of action is here.
I think usage of bevy-inspector-egui shouldn't force you to enable the default features of bevy_egui, but I can see the appeal of adding just bevy-inspector-egui and having a nicely working featureset (including picking).

Of course, bevy-inspector-egui could expose a bevy_egui_default feature (probably on by default) but that feels a bit odd, and maybe writing bevy_egui = "0.36" is a reasonable tradeoff.

I'm open to opinions on that.

[laundmo]

After quite some fumbling, i was able to figure out this monstrosity, which successfully blocks all other picking observers from triggering:

app.add_observer(|t: On<Insert, EguiContext>, mut commands: Commands| {
    commands
        .entity(t.entity)
        .observe(|mut t: On<Pointer<Over>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Move>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Out>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Press>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Release>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Click>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragStart>>| t.propagate(false))
        .observe(|mut t: On<Pointer<Drag>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragEnd>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragEnter>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragOver>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragDrop>>| t.propagate(false))
        .observe(|mut t: On<Pointer<DragLeave>>| t.propagate(false));
});