The focus is not released as expected

[Rindbee]

Godot version

v4.0.alpha4.official [f470979]

System information

Linux Mint 20.3, Vulkan (both), NVIDIA GeForce GTX 1050 Ti

Issue description

The editor cannot switch panels and tabs after a period of use. Now I feel like I have found the reason, the popup context menu.

Steps to reproduce

New/Open a project, and enter the editor.

Right-click on a dock A (for example, the file system dock) to open the context menu A-popup. Then left-click in anywhere, A-popup will be hidden.

After doing this several times, the mouse it may not interact with any other editor/dock anymore, the dock A locks the focus.

This lock will be unlocked when the entire editor loses the focus.

Minimal reproduction project

No response

[Sauermann]

Here is a video of this bug. Linux X11 Debian Xfce:

BugFocus.mp4

[Sauermann]

After bisecting this bug, it looks like it got introduced in #58490.

[akien-mga]

CC @bruvzg

[gregkrsak]

I'm using Lubuntu, and find that if I minimize the Godot app and then maximize it again, this issue clears.

[novaplusplus]

I think I've been getting this too. On KDE + void linux here. I've mostly been noticing it in text editors, but that might just be by chance.

Edit: Yeah, just tried it. Happens anywhere when the context menu is opened. This kiiinddda makes the editor unusable so hopefully this gets fixed soon. (edit 2: ok, I'm learning to use it with fewer context menu uses... but still!)

[nonunknown]

I can confirm in manjaro linux: v4.0.alpha.mono.custom_build [d7d528c]

[jcarlosrc]

It happens in Windows too.

[Sauermann]

I was able to pinpoint the cause of this problem.

This bug appears only with interface/editor/single_window_mode == off.

The following happens:

1. Press the RMB down on the Tree-Item in FileSystem Dock
   1.1. The popup RMB-menu opens
2. Release the RMB
   2.1. The input event is sent from the OS to the currently active window: the popup menu
   2.2. The input event never reaches the main viewport and so the main viewports gui.mouse_focus_mask never gets released.

Also I found the following workaround:

• click anywhere with the RMB.

[Rindbee]

I was able to pinpoint the cause of this problem.

This bug appears only with interface/editor/single_window_mode == off.

The following happens:

1. Press the RMB down on the Tree-Item in FileSystem Dock
   1.1. The popup RMB-menu opens
2. Release the RMB
   2.1. The input event is sent from the OS to the currently active window: the popup menu
   2.2. The input event never reaches the main viewport and so the main viewports gui.mouse_focus_mask never gets released.

Also I found the following workaround:

• click anywhere with the RMB.

I can confirm this. When the option interface/editor/single_window_mode is turned on, there is no problem. a second right click doesn't work, it doesn't affect the visibility of the RMB-menu. Beside this, there is no problem.

When interface/editor/single_window_mode is off (default value), I also find the second RMB-click will open a new RMB-menu, then the second menu will be quickly hidden.

1.mp4