img2img resize option

[DarkKuroi]

In img2img it would be good to have another resize option in which longest side of original image resized to the entered value and other short side automatically resized to keep original image aspect ratio.
So in this mode is only one value entered without any slider and nothing cut/fill.

In current verion after I input another image and add mask, then everytime I need to change scale slider in "resize by" to get my optimal maximum size. I think it can be automated.

PS Or I don't understand how to do what I want in current version.