libkookie: i3: adding compton and various improvements

infra/libkookie/configuration/workstation/i3/tempest.nix

@@ -7,13 +7,15 @@
   # Then configure it
   libkookie.ui.i3 = {
     compton = true;
+
     # TODO: include these files via git LFS
     wallpaper = /home/Pictures/Wallpapers/small-memory.webp;
+
+    # TODO: hook into the "fonts" module?
     fonts = [ "Iosevka:13" ];
 
-    i3Status = {
-      segments = ["ipv6" "disk" "ethernet _first_" "load" "tztime local"];
-    };
+    term = pkgs.kitty;
+    i3Status.segments = ["ipv6" "disk" "ethernet _first_" "load" "tztime local"];
   };
 
   home.packages = with pkgs; [ iosevka ];

infra/libkookie/modules/workstation/ui/i3/core/compton.conf

@@ -0,0 +1,7 @@
+unredir-if-possible = false;
+vsync = "opengl";
+
+### Opacity
+menu-opacity = 0.90;
+frame-opacity = 0.90;  # i.e. titlebars, borders
+inactive-opacity-override = false;

infra/libkookie/modules/workstation/ui/i3/core/compton.nix

@@ -0,0 +1,9 @@
+{ config, lib, ... }:
+
+let cfg = config.libkookie.ui.i3;
+in
+lib.mkIf cfg.compton {
+  text = ''
+    ${builtins.readFile ./compton.conf}
+  '';
+}

infra/libkookie/modules/workstation/ui/i3/core/config.nix

@@ -16,6 +16,31 @@ rec {
   
   inherit (cfg) fonts;
   
-  keybindings = (import ./keys.nix { inherit modifier;
+  keybindings = (import ./keys.nix { inherit cfg modifier;
                                      pkgs = xtraPkgs; });
+
+  modes = {
+
+    # Explicitly handle the resize mode
+    resize = {
+      "h" = "resize shrink width 5 px or 5 ppt";
+      "j" = "resize grow height 5 px or 5 ppt";
+      "k" = "resize shrink height 5 px or 5 ppt";
+      "l" = "resize grow width 5 px or 5 ppt";
+
+      # same bindings, but for the arrow keys
+      "Left" = "resize shrink width 5 px or 5 ppt";
+      "Down" = "resize grow height 5 px or 5 ppt";
+      "Up" = "resize shrink height 5 px or 5 ppt";
+      "Right" = "resize grow width 5 px or 5 ppt";
+
+      # back to normal: Enter or Escape or $mod+r
+      "Return" = "mode \"default\"";
+      "Escape" = "mode \"default\"";
+      "${modifier}+r" = "mode \"default\"";
+    } ;
+  };
+
+  # The `bars` module does weird stuff so we init it ourselves
+  bars = [];
 }

infra/libkookie/modules/workstation/ui/i3/core/i3status.nix

@@ -4,11 +4,11 @@ let
 
   # Grab settings from the submodule
   cfg = config.libkookie.ui.i3.i3Status;
-  colors = (builtins.toString cfg.colors);
+  colors = if cfg.colors then "true" else "false";
   interval = (builtins.toString cfg.interval);
 
   # Utility functions to build the config
-  append = (seg: "order += ${seg}");
+  append = (seg: "order += \"${seg}\"");
 in
 with lib.mkIf;
 {
@@ -16,7 +16,6 @@ with lib.mkIf;
     general {
       colors = ${colors}
       interval = ${interval}
-      format = ${cfg.format}
     }
 
     ${lib.concatMapStringsSep "\n" (l: append l) cfg.segments}

infra/libkookie/modules/workstation/ui/i3/core/keys.nix

@@ -1,8 +1,9 @@
-{ pkgs, modifier }:
+{ cfg, pkgs, modifier }:
 
 {
   # Start a terminal
-  "${modifier}+Return" = "exec ${pkgs.kitty}/bin/kitty";
+  # TODO: this might fail
+  "${modifier}+Return" = "exec ${cfg.term}/bin/${cfg.term.pname}";
   
   # Area screenshot support
   "${modifier}+9" = "exec ${pkgs.libkookie-i3-scrcap}";
@@ -22,6 +23,7 @@
 
   # Rename workspaces
   "${modifier}+Ctrl+r" = "exec ${pkgs.libkookie-i3-rename}";
+  
   # Move focus around - vim style
   "${modifier}+h" = "focus left";
   "${modifier}+t" = "focus up";

infra/libkookie/modules/workstation/ui/i3/core/setup.nix

@@ -16,6 +16,42 @@
         enable = true;
         package = pkgs.i3;
         inherit config;
+
+        # TODO: move this into the config module?
+
+        extraConfig = with pkgs; ''
+          # Setup compton compositor
+          exec_always --no-startup-id "${coreutils}/bin/pkill compton; ${compton}/bin/compton --config ~/.config/i3/compton.conf"
+      
+          # Make CAPSLOCK into ESC because it's 2018
+          #
+          # Okay actually this is slightly more complicated than that. I'm binding 
+          # CAPSLOCK to HYPER, so that I can use it as a modifier in emacs, but then 
+          # using xcape(1) to also make short CAPSLOCK presses into ESCAPE.
+
+          exec_always --no-startup-id "${xorg.xmodmap}/bin/setxkbmap -layout us -variant altgr-intl -option caps:hyper"
+          exec ${xcape}/bin/xcape -e "#66=Escape" -t 150
+
+          # Always set a wallpaper
+          # exec_always --no-startup-id ${feh}/bin/feh --bg-fill config.libkookie.ui.i3.wallpaper ?????
+
+          bar {
+              status_command ${i3status}/bin/i3status -c ~/.config/i3/i3status.conf
+              position bottom
+              bindsym button4 nop
+              bindsym button5 nop
+              colors  {
+                  background #0F0F0F
+                  statusline #D5D5D5
+              }
+          }
+
+          focus_follows_mouse no
+
+          # Layout and design settings that should _really_ be in the module
+          default_border pixel 3
+          client.focused #4c7899 #285577 #ffffff #F73E5F #666666
+        '';
       };
 
   xdg.configFile."i3/compton.conf" = (import ./compton.nix args);

infra/libkookie/modules/workstation/ui/i3/core/tools/default.nix

@@ -5,4 +5,5 @@
   libkookie-i3-switch = (import ./i3-switch.nix args);
   libkookie-i3-rename = (import ./i3-rename.nix args);
   libkookie-i3-scrcap = (import ./i3-scrcap.nix args);
+  libkookie-i3-locker = (import ./i3-locker.nix args);
 }

infra/libkookie/modules/workstation/ui/i3/core/tools/i3-locker.nix

@@ -0,0 +1,47 @@
+/**    A utility script to lock the screen
+ *
+ *  This tool relies on i3lock, ./lock.png, fortune, and imagemagic to
+ *  create a picture to fill all available screens
+ */
+
+{ pkgs, ... }:
+with pkgs;
+let
+  lockIcon = "${i3lock-fancy}/share/i3lock-fancy/icons/lock.png";
+  i3lock = "${i3lock}/bin/i3lock";
+  mktemp = "${coreutils}/bin/mktemp";
+  rm = "${coreutils}/bin/rm";
+  fortune = "${fortune}/bin/fortune";
+  xrandr = "${xrandr}/bin/xrandr";
+  convert = "${imagemagick}/bin/convert";
+in
+writeShellScript "libkookie-i3locker" ''
+                 
+  # Create a temp directory to work in
+  TMPDIR=$(${mktemp} -d)
+  BGIMAGE=$TMPDIR/lockbg.png
+  FORTUNE=$(${fortune} | sed -e 's/\t/    /g')
+  TMPRES=$(${xrandr} | grep \* | cut -d' ' -f4 | sed ':a;N;$!ba;s/\n/ /g')
+  RESOLUTION=$(`echo $TMP_RES | sed 's/ /\n/g'`)
+
+  # Create a base image
+  ${convert} -size 0x0 canvas:black $BGIMAGE
+  
+  for mon in "${RESOLUTION[@]}"
+  do
+    echo "Running for monitor $mon"
+    TMPLOCK="$TMPDIR/tmplock.png"
+    ${convert} -size "$mon" canvas:black -font Inconsolata -pointsize 18 \
+               -fill white -gravity center -annotate +0+250 "$FORTUNE" \
+               "${lockIcon}" -gravity center -composite "$TMPLOCK"
+    
+    ${convert} "$IMAGE" "$TMPLOCK" +append "$IMAGE"
+    ${rm} "TMPLOCK"
+  done
+
+  # Lock the screen
+  ${i3lock} -i "$IMAGE"
+
+  # Remove all the temp images
+  ${rm} -rf $TMPDIR
+''

infra/libkookie/modules/workstation/ui/i3/default.nix

@@ -20,7 +20,8 @@ with lib;
       type = with types; listOf str;
       default = [];
       description = ''
-        The set of video drivers to instantiate on a given system
+        The set of video drivers to instantiate on a given system.
+        This setting is passed through to the X11 configuration.
       '';
     };
   };

infra/libkookie/modules/workstation/ui/i3/hm.nix

@@ -27,6 +27,11 @@ in
       '';
     };
 
+    term = mkOption {
+      type = types.package;
+      description = "Terminal emulator to bind to <M-RET>";
+    };
+    
     i3Status = mkOption {
       type = with types; submodule {
         options = {