on_button_mouse_entered() not working when LMB is held down

system · June 13, 2019, 9:21pm


	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	LiquidLittle

I’m currently making a on screen keyboard. One of the feature is that when you hold down one of the buttons, new buttons appear around it. By hovering and letting go you can select the new buttons that have appeared.

I setup up a few buttons that are around the main button initially. Then when the button is pressed, the new buttons are set to show. I have connected the signal on_button_mouse_entered to the main scene, but it is not triggering.

After doing some debugging I have found that the mouse_entered() function does not trigger if the LMB is held down. Is there any way to circumvent this issue?

system · June 14, 2019, 2:24pm


	Reply From:	Thomas Karcher

Yes, that’s a known issue, discussed here:

github.com/godotengine/godot

mouse enter signal does not work when the LMB is pressed

opened 08:34AM - 26 Oct 18 UTC

closed 02:04PM - 28 Mar 21 UTC

HamSausage

bug archived topic:input topic:gui

when I tried to implement a bag with drag and drop function, I found that when I… pressed the LMB in the control node. the mouse enter and exited signal does not work. I also found there was a similiar issue right here #6362 which was closed a long time ago. public override void _Ready() { Control cell = (Control)getNode("Cell"); cell.Connect("mouse_entered", this, "onMouseEntered"); cell.Connect("mouse_exited", this, "onMouseExited"); } public void onMouseEntered(){ GD.Print("on mouse enter"); } public void onMouseExited(){ GD.Print("on mouse exit"); } public override void _Input(InputEvent @event){ if (@event.IsActionPressed("mouse_left_button")){ GD.Print("press LMB"): } }

User avencherus offered two possible workarounds for a very similar question back in 2016:
https://forum.godotengine.org/10092/enter-events-triggering-until-other-input-event-completed