Ensure slider and text box does not update when adjusting

[mitch-galea]

I have a use case where a parameter is being set at a high rate with a dynamic reconfigure client. I also want to be able to edit the value in the rqt_reconfigure window. However when I click on the slider or text box the value is constantly being updated so I can't edit the text box or move the slider. It would be great if the sliders and text boxes would only update when the user is not interacting with them.

I've attached a video showing the behavior

error.mp4