Some times can't add node in visualshader editor

[CsloudX]

Godot version

v4.2.beta2.official [f8818f8]

System information

Windows 10, 64bit

Issue description

Some times can't add node in visualshader editor

Steps to reproduce

1. Open a VisualShader file for edit.
2. Click the Add Node... button, it will popup menu, it is OK.
3. Direct close the menu.
4. Clikd the Add Node... again, the menu can't popup.
   

Minimal reproduction project

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[Calinou]

I can't reproduce this on 4.2.beta f8818f8 (Linux). I've tried both single-window mode enabled and disabled.

How are you closing the Add Node window? Are you pressing Escape or clicking outside? Clicking outside doesn't close the window for me.

[CsloudX]

Oh, I'm found it, the menu was in backgound.

[CsloudX]

How are you closing the Add Node window? Are you pressing Escape or clicking outside? Clicking outside doesn't close the window for me.

clicking outside

[LiorArbel]

Happened to me too now, pretty confusing, if you started adding a node and then didn't add one, it would make sense to either automatically close the small window when you change the window back to Godot\another program, or to bring this window back to focus if you click add node and it's already open.

[jsjtxietian]

Oh, I'm found it, the menu was in backgound.

Same for me, my pr fixes the problem, you can help test :)

[Zylann]

The same fate seems to have occurred for my graph editor, which uses a similar popup. What happened to the "click outside to close" behavior?
I can set my dialog to exclusive too I guess, just a bit more annoying to aim for the close button.

I also noticed in some circumstances that this popup can now get stuck unresponsive after specific focus changes/clicking around, eventually blocking the whole editor as a result (so far resolving with alt/tab). I haven't found the pattern to make it happen though, but had it occur a few times.

visual_shader_popup_randomly_stuck.mp4