home: wm: i3: add configuration
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cdbe16e703
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home/wm/i3.nix
288
home/wm/i3.nix
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@ -1,14 +1,298 @@
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{ config, lib, ... }:
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{ config, lib, pkgs, ... }:
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let
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isEnabled = config.my.home.wm.windowManager == "i3";
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terminal = "i3-sensible-terminal";
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alt = "Mod1"; # `Alt` key
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modifier = "Mod4"; # `Super` key
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movementKeys = [ "Left" "Down" "Up" "Right" ];
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vimMovementKeys = [ "h" "j" "k" "l" ];
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shutdownMode =
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"(l)ock, (e)xit, switch_(u)ser, (h)ibernate, (r)eboot, (Shift+s)hutdown";
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# Takes an attrset of bindings for movement keys, transforms it to Vim keys
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toVimKeyBindings =
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let
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toVimKeys = builtins.replaceStrings movementKeys vimMovementKeys;
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in
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lib.my.renameAttrs toVimKeys;
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# Takes an attrset of bindings for movement keys, add equivalent Vim keys
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addVimKeyBindings = bindings: bindings // (toVimKeyBindings bindings);
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# Generate an attrset of movement bindings, using the mapper function
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genMovementBindings = f: addVimKeyBindings (lib.my.genAttrs' movementKeys f);
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in
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{
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config = lib.mkIf isEnabled {
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home.packages = with pkgs; [
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arandr # Used by a mapping
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flameshot # Used by a mapping, started at startup
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playerctl # Used by a mapping
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];
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xsession.windowManager.i3 = {
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enable = true;
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config = {
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modifier = "Mod4"; # `Super` key
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inherit modifier;
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bars =
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let
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barConfigPath =
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config.xdg.configFile."i3status-rust/config-top.toml".target;
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in
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[
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{
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statusCommand = "i3status-rs ${barConfigPath}";
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trayOutput = "primary";
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position = "top";
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colors = {
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background = "#021215";
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statusline = "#93a1a1";
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separator = "#2aa198";
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focusedWorkspace = {
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border = "#2aa198";
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background = "#073642";
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text = "#eee895";
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};
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activeWorkspace = {
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border = "#073642";
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background = "#002b36";
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text = "#839496";
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};
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inactiveWorkspace = {
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border = "#002b36";
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background = "#021215";
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text = "#586e75";
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};
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urgentWorkspace = {
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border = "#cb4b16";
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background = "#dc322f";
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text = "#fdf6e3";
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};
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};
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}
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];
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floating = {
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inherit modifier;
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criteria = [
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{ class = "^tridactyl_editor$"; }
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{ class = "^Blueman-.*$"; }
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{ title = "^htop$"; }
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{ class = "^Thunderbird$"; instance = "Mailnews"; window_role = "filterlist"; }
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{ class = "^Pavucontrol.*$"; }
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{ class = "^Arandr$"; }
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];
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};
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focus = {
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followMouse = true; # It is annoying sometimes, but useful enough to use
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mouseWarping = true; # Let's moving around when switching screens
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};
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fonts = [
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"DejaVu Sans Mono 8"
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];
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# I don't care for i3's default values, I specify them all explicitly
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keybindings = builtins.foldl' (lhs: rhs: lhs // rhs) { } [
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{
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# The basics
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"${modifier}+Return" = "exec ${terminal}";
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"${modifier}+Shift+Return" = "exec env TMUX=nil ${terminal}";
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"${modifier}+Shift+q" = "kill";
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"${modifier}+f" = "fullscreen toggle";
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"${modifier}+Shift+c" = "reload";
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"${modifier}+Shift+r" = "restart";
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"${modifier}+Shift+e" =
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"exec i3-nagbar -t warning -m 'Do you want to exit i3?' -b 'Yes' 'i3-msg exit'";
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}
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{
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# Splits
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"${modifier}+g" = "split h"; # Horizontally
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"${modifier}+v" = "split v"; # Vertically
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}
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{
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# Layouts
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"${modifier}+s" = "layout stacking";
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"${modifier}+w" = "layout tabbed";
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"${modifier}+e" = "layout toggle split";
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}
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{
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# Toggle tiling/floating
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"${modifier}+Control+space" = "floating toggle";
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# Change focus between tiling/floating
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"${modifier}+space" = "focus mode_toggle";
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}
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{
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# Focus parent container
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"${modifier}+q" = "focus parent";
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# Focus child container
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"${modifier}+a" = "focus child";
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}
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{
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# Rofi tools
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"${modifier}+d" = "exec rofi -show drun -disable-history";
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"${modifier}+Shift+d" = "exec rofi -show run -disable-history";
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"${modifier}+p" = "exec --no-startup-id flameshot gui";
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"${modifier}+Shift+p" = "exec rofi -show emoji";
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}
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(
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# Changing container focus
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genMovementBindings (
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key: lib.nameValuePair
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"${modifier}+${key}"
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"focus ${lib.toLower key}"
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)
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)
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(
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# Changing screen focus
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genMovementBindings (
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key: lib.nameValuePair
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"${modifier}+${alt}+${key}"
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"focus output ${lib.toLower key}"
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)
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)
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(
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# Moving workspace to another screen
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genMovementBindings (
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key: lib.nameValuePair
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"${modifier}+${alt}+Control+${key}"
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"move workspace to output ${lib.toLower key}"
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)
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)
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(
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# Moving container to another screen
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genMovementBindings (
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key: lib.nameValuePair
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"${modifier}+${alt}+Shift+${key}"
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"move container to output ${lib.toLower key}"
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)
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)
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(addVimKeyBindings {
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# Scroll through workspaces on given screen
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"${modifier}+Control+Left" = "workspace prev_on_output";
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"${modifier}+Control+Right" = "workspace next_on_output";
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# Use scratchpad
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"${modifier}+Control+Up" = "move to scratchpad";
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"${modifier}+Control+Down" = "scratchpad show";
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})
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(
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# Moving floating window
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genMovementBindings (
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key: lib.nameValuePair
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"${modifier}+Shift+${key}"
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"move ${lib.toLower key} 10 px"
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)
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)
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{
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# Media keys
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"XF86AudioRaiseVolume" = "exec amixer -q -D pulse sset Master 5%+";
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"XF86AudioLowerVolume" = "exec amixer -q -D pulse sset Master 5%-";
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"Control+XF86AudioRaiseVolume" = "exec amixer -q -D pulse sset Master 1%+";
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"Control+XF86AudioLowerVolume" = "exec amixer -q -D pulse sset Master 1%-";
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"XF86AudioMute" = "exec amixer -q -D pulse sset Master toggle";
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"XF86AudioPlay" = "exec playerctl play-pause";
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"XF86AudioNext" = "exec playerctl next";
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"XF86AudioPrev" = "exec playerctl previous";
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}
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{
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# Sub-modes
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"${modifier}+r" = "mode resize";
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"${modifier}+Shift+space" = "mode floating";
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"${modifier}+0" = ''mode "${shutdownMode}"'';
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}
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];
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keycodebindings =
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let
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toKeycode = n: if n == 0 then 19 else n + 9;
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createWorkspaceBindings = mapping: command:
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let
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createWorkspaceBinding = num:
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lib.nameValuePair
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"${mapping}+${toString (toKeycode num)}"
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"${command} ${toString num}";
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oneToNine = builtins.genList (x: x + 1) 9;
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in
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lib.my.genAttrs' oneToNine createWorkspaceBinding;
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in
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builtins.foldl' (lhs: rhs: lhs // rhs) { } [
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(createWorkspaceBindings modifier "workspace number")
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(createWorkspaceBindings "${modifier}+Shift" "move container to workspace number")
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];
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modes =
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let
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makeModeBindings = attrs: (addVimKeyBindings attrs) // {
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"Escape" = "mode default";
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"Return" = "mode default";
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};
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in
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{
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resize = makeModeBindings {
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# Normal movements
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"Left" = "resize shrink width 10 px or 10 ppt";
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"Down" = "resize grow height 10 px or 10 ppt";
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"Up" = "resize shrink height 10 px or 10 ppt";
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"Right" = "resize grow width 10 px or 10 ppt";
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# Small movements
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"Control+Left" = "resize shrink width 1 px or 1 ppt";
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"Control+Down" = "resize grow height 1 px or 1 ppt";
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"Control+Up" = "resize shrink height 1 px or 1 ppt";
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"Control+Right" = "resize grow width 1 px or 1 ppt";
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# Big movements
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"Shift+Left" = "resize shrink width 100 px or 100 ppt";
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"Shift+Down" = "resize grow height 100 px or 100 ppt";
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"Shift+Up" = "resize shrink height 100 px or 100 ppt";
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"Shift+Right" = "resize grow width 100 px or 100 ppt";
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};
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floating = makeModeBindings {
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# Normal movements
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"Left" = "move left 10 px";
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"Down" = "move down 10 px";
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"Up" = "move up 10 px";
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"Right" = "move right 10 px";
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# Small movements
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"Control+Left" = "move left 1 px";
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"Control+Down" = "move down 1 px";
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"Control+Up" = "move up 1 px";
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"Control+Right" = "move right 1 px";
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# Big movements
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"Shift+Left" = "move left 100 px";
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"Shift+Down" = "move down 100 px";
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"Shift+Up" = "move up 100 px";
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"Shift+Right" = "move right 100 px";
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};
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${shutdownMode} = makeModeBindings {
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"l" = "exec --no-startup-id loginctl lock-session, mode default";
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"s" = "exec --no-startup-id systemctl suspend, mode default";
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"u" = "exec --no-startup-id dm-tool switch-to-greeter, mode default";
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"e" = "exec --no-startup-id i3-msg exit, mode default";
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"h" = "exec --no-startup-id systemctl hibernate, mode default";
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"r" = "exec --no-startup-id systemctl reboot, mode default";
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"Shift+s" = "exec --no-startup-id systemctl poweroff, mode default";
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};
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};
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startup = [
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# FIXME
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# { commdand; always; notification; }
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{
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command = "flameshot";
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}
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];
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};
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};
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};
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