configuration.nix/home/gui/keybindings.nix

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{ pkgs, config }:
let
cfg = config.jhome.gui.sway;
passmenu = "${pkgs.jpassmenu}/bin/jpassmenu";
selectAudio = "${pkgs.audiomenu}/bin/audiomenu --menu 'fuzzel --dmenu'";
cacheFile = ''
cache_file() {
cache_dir="''${XDG_CACHE_HOME:-$HOME/.cache}/scripts"
[ -d "$cache_dir" ] || mkdir -p "$cache_dir"
echo "$cache_dir/$1"
}
'';
brightness-notify = pkgs.writeShellScript "birghtness-notify" ''
app='changedBrightness'
icon='brightnesssettings'
# Cache msgid
${cacheFile}
msgid_file="$(cache_file "$app.msgid")"
[ -f "$msgid_file" ] && msgid="$(cat "$msgid_file")"
msgid="''${msgid:-0}"
# Get brightness
brightness="$(xbacklight -perceived -get)"
# Send notification
${pkgs.libnotify}/bin/notify-send -pu low -r "$msgid" -a "$app" -i "$icon" -h int:value:"$brightness" "Brightness: $brightness%" >"$msgid_file"
'';
audio-source-notify = pkgs.writeShellScript "audio-source-notify" ''
app='volumeChanged'
icon='audio-volume'
# Cache msgid
${cacheFile}
msgid_file="$(cache_file "$app.msgid")"
[ -f "$msgid_file" ] && msgid="$(cat "$msgid_file")"
msgid="''${msgid:-0}"
# Process volume info
volume="$(wpctl get-volume @DEFAULT_SINK@)"
if [ "''${volume#*MUTED}" = "$volume" ]; then muted=false; else muted=true; fi
volume="''${volume#Volume: }"
int_volume="$(printf '%.0f' "$(echo "100*$volume" | "${pkgs.bc}/bin/bc")")"
if [ "$int_volume" -eq 0 ]; then muted=true; fi
# Send notification
if [ "$muted" = true ]; then
${pkgs.libnotify}/bin/notify-send -pu low -r "$msgid" -a "$app" -i "$icon-muted" "Volume Muted" >"$msgid_file"
else
${pkgs.libnotify}/bin/notify-send -pu low -r "$msgid" -a "$app" -i "$icon-high" -h "int:value:$int_volume" "Volume: $int_volume%" >"$msgid_file"
fi
'';
swayconf = config.wayland.windowManager.sway.config;
mod = swayconf.modifier;
workspaces = map toString [ 1 2 3 4 5 6 7 8 9 ];
dirs =
map
(dir: {
key = swayconf.${dir};
arrow = dir;
direction = dir;
}) [ "up" "down" "left" "right" ];
joinKeys = builtins.concatStringsSep "+";
# Generate a keybind from a modifier prefix and a key
keycombo = prefix: key: joinKeys (prefix ++ [ key ]);
modKeybind = keycombo [ mod ];
modCtrlKeybind = keycombo [ mod "Ctrl" ];
modShiftKeybind = keycombo [ mod "Shift" ];
modCtrlShiftKeybind = keycombo [ mod "Ctrl" "Shift" ];
dir2resize.up = "resize grow height";
dir2resize.down = "resize shrink height";
dir2resize.right = "resize grow width";
dir2resize.left = "resize shrink width";
# Bind a key combo to an action
genKeybind = prefix: action: key: { "${prefix key}" = "${action key}"; };
genKey = prefix: action: genKeybind ({ key, ... }: prefix key) ({ direction, ... }: action direction);
genArrow = prefix: action: genKeybind ({ arrow, ... }: prefix arrow) ({ direction, ... }: action direction);
genArrowAndKey = prefix: action: key: (genKey prefix action key) // (genArrow prefix action key);
# Move window
moveWindowKeybinds = map (genArrowAndKey modShiftKeybind (dir: "move ${dir}")) dirs;
# Focus window
focusWindowKeybinds = map (genArrowAndKey modKeybind (dir: "focus ${dir}")) dirs;
# Resize window
resizeWindowKeybinds = map (genArrowAndKey modCtrlKeybind (dir: dir2resize.${dir})) dirs;
# Move container to workspace
moveWorkspaceKeybindings = map (genKeybind modShiftKeybind (number: "move container to workspace number ${number}")) workspaces;
# Focus workspace
focusWorkspaceKeybindings = map (genKeybind modKeybind (number: "workspace number ${number}")) workspaces;
# Move container to Workspace and focus on it
moveFocusWorkspaceKeybindings = map (genKeybind modCtrlShiftKeybind (number: "move container to workspace number ${number}; workspace number ${number}")) workspaces;
in
builtins.foldl' (l: r: l // r)
{
"${mod}+Return" = "exec ${swayconf.terminal}";
"${mod}+D" = "exec ${swayconf.menu}";
"${mod}+P" = "exec ${passmenu}";
"${mod}+F2" = "exec qutebrowser";
"${mod}+Shift+Q" = "kill";
"${mod}+F" = "fullscreen toggle";
# Media Controls
"${mod}+F10" = "exec ${selectAudio} select-sink";
"${mod}+Shift+F10" = "exec ${selectAudio} select-source";
"XF86AudioRaiseVolume" = "exec wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%+ && ${audio-source-notify}";
"XF86AudioLowerVolume" = "exec wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%- && ${audio-source-notify}";
"XF86AudioMute" = "exec wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle && ${audio-source-notify}";
"XF86ScreenSaver" = "exec swaylock --image ${cfg.background}";
"XF86MonBrightnessUp" = "exec ${pkgs.light}/bin/light -A 5 && ${brightness-notify}";
"XF86MonBrightnessDown" = "exec ${pkgs.light}/bin/light -U 5 && ${brightness-notify}";
# Floating
"${mod}+Space" = "floating toggle";
"${mod}+Shift+Space" = "focus mode_toggle";
# Scratchpad
"${mod}+Minus" = "scratchpad show";
"${mod}+Shift+Minus" = "move scratchpad";
# Layout
"${mod}+e" = "layout toggle split";
# Session control
"${mod}+r" = "reload";
"${mod}+Shift+m" = "exit";
}
(focusWindowKeybinds
++ moveWindowKeybinds
++ resizeWindowKeybinds
++ focusWorkspaceKeybindings
++ moveWorkspaceKeybindings
++ moveFocusWorkspaceKeybindings)