bug#25408: Remove Decorations Around Emacs Frame (NS port)

[Anders Lindgren]

Hi!

 

Anders, I hope it’s OK CCing you in. I think you might appreciate the
following (after applying the patch):

I really appreciate that you are keeping me in the loop!

 

emacs -Q

(set-frame-parameter nil 'undecorated t)
(setq ns-auto-hide-menu-bar t)
(toggle-frame-maximized)

This looks very promising! It's a cleaner solution than the one I use today -- placing the title bar above the top of the screen.

The only issue I've came across was when the bottom edge of a frame was close to the bottom of the display (or when maximized). When `undocorated' goes from t to nil, the window shrinks. When positioned in the middle of the screen, it looks like the frame, for a fraction of a second, increases its size before returning to it's original shape. My guess is that, when at the bottom of the screen, the frame gets truncated when the frame is temporarily increased, and when it tries to return to it's original size, it shrinks.

I made an attempt at adapting/modernizing my "multicolumn" (https://github.com/Lindydancer/multicolumn) package (which, among else, can resize and reposition a frame). Currently, I have hardcoded the title size for various systems -- on macOS I use "24". However, `frame-geometry' says that the title height is 22 pixels. I'm not sure how to account for the missing 2 pixels, any thoughts?

Martin, I also notices that `menu-bar-external' says `nil', but I guess is should say non-nil, right?

    -- Anders