Selecting text with drag sometimes instantly select all text to previous caret position

[Giganzo]

Tested versions

Godot v4.3.beta2
Godot v4.3.beta3

System information

Godot v4.3.beta3 - Fedora Linux 39 (KDE Plasma) - X11 - Vulkan (Forward+) - nvidia; 555.58.02

Issue description

Selecting text with drag sometimes instantly select all text to previous caret position.

First thought my mouse button was going bad, but don't seem to happen in 4.2.2

Also don't think I have seen this on windows.

Could it be related to?: #94077

Steps to reproduce

Place your caret somewhere in the code.
Then try to select some text at another place.

Minimal reproduction project (MRP)

N/A

[alvinhochun]

Does this happen with 4.3 beta 1?
Perhaps an X11 version of #93078 (possible regression by #92424)?

[Giganzo]

Does this happen with 4.3 beta 1?

I haven't been able to reproduce it in beta 1 when testing now

[kitbdev]

It looks like this is happening because an InputEventMouseMotion with a mouse mask is sent before an InputEventMouseButton pressed event, same as #93078 as mentioned above.

• Fixing this should also fix Code Editor — when dragging the mini-map it also selects code. #94077

• Probably caused by Use current mouse button state instead of saved values. #92424

• Fixing it is not as simple as Windows Input use GetKeyState instead of GetAsyncKeyState #93105, since there is no equivalent non async version that I could find. I think some logic in DisplayServerX11 needs to change to make sure mouse motion does not have the mask set before the mouse pressed event.

This applies to all Controls, but I could make a workaround just for TextEdit if needed.

[akien-mga]

CC @bruvzg