Re: https://www.gnu.org/software/emacs/manual/html_node/efaq/Fullscreen-mode-on-GNU-Linux.html

[David Hedlund <public@beloved.name>]

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On 9/26/23 21:11, Emanuel Berg wrote:
> David Hedlund wrote:
>
>> So my original email suggest a complete solution, is this
>> something we can add to a new page,
>> https://www.gnu.org/software/emacs/manual/html_node/efaq/Fullscreen-mode-on-GNU-Linux.html
>> and then update it with improved solutions in the future?
> Subject URL was new for me if nothing else :P
>
Methods to always maximize `emacs` (for example, from Alt+F2 in MATE), 
without the slightly distracting visual effect when the default frame 
size is growing to fullscreen. The window will be maximized quickly, 
like "emacs --maximize".


GNU/Linux - proposed new section: 
https://www.gnu.org/software/emacs/manual/html_node/efaq/Fullscreen-mode-on-GNU-Linux.html


As far as I know, this cannot be done entirely with Emacs LISP for 
GNU/Linux, but I found a workaround by combining it with devilspie2.


I've successfully used this recipe for Trisquel 11:

* Step 1 to quickly maximize the window[1]: Install, configure, and 
autostart devilspie2 to nearly maximize emacs[1]. Run this in a terminal 
or as a script:

# Install devilspie2
sudo apt-get -y install devilspie2

# Configure devilspie2
mkdir -p ~/.config/devilspie2/

width="$(xrandr --current | grep '*' | uniq | awk '{print $1}' | cut -d 
'x' -f1)"
height="$(xrandr --current | grep '*' | uniq | awk '{print $1}' | cut -d 
'x' -f2)"

tee ~/.config/devilspie2/emacs.lua /dev/null << EOF
if (get_class_instance_name() == "emacs") then

     set_window_geometry(0, 0, $width, $height);

end
EOF

# Autostart devilspie2
mkdir -p "$HOME/.config/autostart/" # The directory does not exist by 
default
cd "$HOME/.config/autostart/" || exit
file="devilspie-2.desktop"
touch "$file"
desktop-file-edit \
--set-name="Devilspie 2" \
--set-comment="Perform scripted actions on windows as they are created" \
--set-key="Type" --set-value="Application" \
--set-key="Exec" --set-value="devilspie2" \
--set-key="X-MATE-Autostart-Delay" --set-value="0" \
"$file"
desktop-file-validate "$file"

* Step 2 to quickly maximize the window[1]: Add this to ~/.emacs: 
(add-to-list 'default-frame-alist '(fullscreen . maximized))
* Log out and then log back into your desktop environment
* Every time you open `emacs`, regardless how you are opening it, it 
will open the window equally fast as `emacs --maximize`

[1]: Workaround to bug: maximize* commands don't work for Emacs - 
https://savannah.nongnu.org/bugs/index.php?63979



The above steps can of course be rewritten and described for general use 
to make it useful for any GNU/Linux distro.

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