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home-manager/modules/services/window-managers/i3.nix
2017-11-21 09:14:13 +01:00

646 lines
21 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
with import ../../lib/dag.nix { inherit lib; };
let
cfg = config.xsession.windowManager.i3;
startupModule = types.submodule {
options = {
command = mkOption {
type = types.string;
description = "Command that will be executed on startup.";
};
always = mkOption {
type = types.bool;
default = false;
description = "Whether to run command on each i3 restart.";
};
notification = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable startup-notification support for the command.
See <option>--no-startup-id</option> option description in the i3 user guide.
'';
};
workspace = mkOption {
type = types.nullOr types.string;
default = null;
description = "Launch application on a particular workspace.";
};
};
};
colorSetModule = types.submodule {
options = {
border = mkOption {
type = types.string;
visible = false;
};
childBorder = mkOption {
type = types.string;
visible = false;
};
background = mkOption {
type = types.string;
visible = false;
};
text = mkOption {
type = types.string;
visible = false;
};
indicator = mkOption {
type = types.string;
visible = false;
};
};
};
barModule = types.submodule {
options = {
mode = mkOption {
type = types.enum [ "dock" "hide" "invisible" ];
default = "dock";
description = "Bar visibility mode.";
};
hiddenState = mkOption {
type = types.enum [ "hide" "show" ];
default = "hide";
description = "The default bar mode when 'bar.mode' == 'hide'.";
};
position = mkOption {
type = types.enum [ "top" "bottom" ];
default = "bottom";
description = "The edge of the screen i3bar should show up.";
};
workspaceButtons = mkOption {
type = types.bool;
default = true;
description = "Whether workspace buttons should be shown or not.";
};
statusCommand = mkOption {
type = types.string;
default = "${pkgs.i3status}/bin/i3status";
description = "Command that will be used to get status lines.";
};
};
};
windowCommandModule = types.submodule {
options = {
command = mkOption {
type = types.string;
description = "i3wm command to execute.";
example = "border pixel 1";
};
criteria = mkOption {
type = criteriaModule;
description = "Criteria of the windows on which command should be executed.";
example = { title = "x200: ~/work"; };
};
};
};
criteriaModule = types.attrs;
configModule = types.submodule {
options = {
fonts = mkOption {
type = types.listOf types.string;
default = ["monospace 8"];
description = ''
Font list used for window titles. Only FreeType fonts are supported.
The order here is improtant (e.g. icons font should go before the one used for text).
'';
example = [ "FontAwesome 10" "Terminus 10" ];
};
window = mkOption {
type = types.submodule {
options = {
titlebar = mkOption {
type = types.bool;
default = cfg.package != pkgs.i3-gaps;
defaultText = "xsession.windowManager.i3.package != nixpkgs.i3-gaps (titlebar should be disabled for i3-gaps)";
description = "Whether to show window titlebars.";
};
border = mkOption {
type = types.int;
default = 2;
description = "Window border width.";
};
hideEdgeBorders = mkOption {
type = types.enum [ "none" "vertical" "horizontal" "both" "smart" ];
default = "none";
description = "Hide window borders adjacent to the screen edges.";
};
commands = mkOption {
type = types.listOf windowCommandModule;
default = [];
description = ''
List of commands that should be executed on specific windows.
See <option>for_window</option> i3wm option documentation.
'';
example = [ { command = "border pixel 1"; criteria = { class = "XTerm"; }; } ];
};
};
};
default = {};
description = "Window titlebar and border settings.";
};
floating = mkOption {
type = types.submodule {
options = {
titlebar = mkOption {
type = types.bool;
default = cfg.package != pkgs.i3-gaps;
defaultText = "xsession.windowManager.i3.package != nixpkgs.i3-gaps (titlebar should be disabled for i3-gaps)";
description = "Whether to show floating window titlebars.";
};
border = mkOption {
type = types.int;
default = 2;
description = "Floating windows border width.";
};
modifier = mkOption {
type = types.enum [ "Shift" "Control" "Mod1" "Mod2" "Mod3" "Mod4" "Mod5" ];
default = "Mod1";
description = "Modifier key that can be used to drag floating windows.";
example = "Mod4";
};
criteria = mkOption {
type = types.listOf criteriaModule;
default = [];
description = "List of criteria for windows that should be opened in a floating mode.";
example = [ {"title" = "Steam - Update News";} {"class" = "Pavucontrol";} ];
};
};
};
default = {};
description = "Floating window settings.";
};
focus = mkOption {
type = types.submodule {
options = {
newWindow = mkOption {
type = types.enum [ "smart" "urgent" "focus" "none" ];
default = "smart";
description = ''
This option modifies focus behavior on new window activation.
See <link xlink:href="https://i3wm.org/docs/userguide.html#focus_on_window_activation"/>
'';
example = "none";
};
followMouse = mkOption {
type = types.bool;
default = true;
description = "Whether focus should follow the mouse.";
};
forceWrapping = mkOption {
type = types.bool;
default = false;
description = ''
Whether to force focus wrapping in tabbed or stacked container.
See <link xlink:href="https://i3wm.org/docs/userguide.html#_focus_wrapping"/>
'';
};
mouseWarping = mkOption {
type = types.bool;
default = true;
description = ''
Whether mouse cursor should be warped to the center of the window when switching focus
to a window on a different output.
'';
};
};
};
default = {};
description = "Focus related settings.";
};
assigns = mkOption {
type = types.attrsOf (types.listOf criteriaModule);
default = {};
description = ''
An attribute set that assignes applications to workspaces based
on criteria.
'';
example = literalExample ''
{
"1: web" = [{ class = "^Firefox$"; }];
"0: extra" = [{ class = "^Firefox$"; window_role = "About"; }];
}
'';
};
keybindings = mkOption {
type = types.attrs;
default = {
"Mod1+Return" = "exec i3-sensible-terminal";
"Mod1+Shift+q" = "kill";
"Mod1+d" = "exec ${pkgs.dmenu}/bin/dmenu_run";
"Mod1+Left" = "focus left";
"Mod1+Down" = "focus down";
"Mod1+Up" = "focus up";
"Mod1+Right" = "focus right";
"Mod1+h" = "split h";
"Mod1+v" = "split v";
"Mod1+f" = "fullscreen toggle";
"Mod1+s" = "layout stacking";
"Mod1+w" = "layout tabbed";
"Mod1+e" = "layout toggle split";
"Mod1+Shift+space" = "floating toggle";
"Mod1+1" = "workspace 1";
"Mod1+2" = "workspace 2";
"Mod1+3" = "workspace 3";
"Mod1+4" = "workspace 4";
"Mod1+5" = "workspace 5";
"Mod1+6" = "workspace 6";
"Mod1+7" = "workspace 7";
"Mod1+8" = "workspace 8";
"Mod1+9" = "workspace 9";
"Mod1+Shift+1" = "move container to workspace 1";
"Mod1+Shift+2" = "move container to workspace 2";
"Mod1+Shift+3" = "move container to workspace 3";
"Mod1+Shift+4" = "move container to workspace 4";
"Mod1+Shift+5" = "move container to workspace 5";
"Mod1+Shift+6" = "move container to workspace 6";
"Mod1+Shift+7" = "move container to workspace 7";
"Mod1+Shift+8" = "move container to workspace 8";
"Mod1+Shift+9" = "move container to workspace 9";
"Mod1+Shift+c" = "reload";
"Mod1+Shift+r" = "restart";
"Mod1+Shift+e" = "exec i3-nagbar -t warning -m 'Do you want to exit i3?' -b 'Yes' 'i3-msg exit'";
"Mod1+r" = "mode resize";
};
defaultText = "Default i3 keybindings.";
description = ''
An attribute set that assignes key press to an action using key symbol.
See <link xlink:href="https://i3wm.org/docs/userguide.html#keybindings"/>.
'';
example = literalExample ''
{
"Mod1+Return" = "exec i3-sensible-terminal";
"Mod1+Shift+q" = "kill";
"Mod1+d" = "exec ${pkgs.dmenu}/bin/dmenu_run";
}
'';
};
keycodebindings = mkOption {
type = types.attrs;
default = {};
description = ''
An attribute set that assignes keypress to an action using key code.
See <link xlink:href="https://i3wm.org/docs/userguide.html#keybindings"/>.
'';
example = { "214" = "exec --no-startup-id /bin/script.sh"; };
};
colors = mkOption {
type = types.submodule {
options = {
background = mkOption {
type = types.string;
default = "#ffffff";
description = ''
Background color of the window. Only applications which do not cover
the whole area expose the color.
'';
};
focused = mkOption {
type = colorSetModule;
default = {
border = "#4c7899"; background = "#285577"; text = "#ffffff";
indicator = "#2e9ef4"; childBorder = "#285577";
};
description = "A window which currently has the focus.";
};
focusedInactive = mkOption {
type = colorSetModule;
default = {
border = "#333333"; background = "#5f676a"; text = "#ffffff";
indicator = "#484e50"; childBorder = "#5f676a";
};
description = ''
A window which is the focused one of its container,
but it does not have the focus at the moment.
'';
};
unfocused = mkOption {
type = colorSetModule;
default = {
border = "#333333"; background = "#222222"; text = "#888888";
indicator = "#292d2e"; childBorder = "#222222";
};
description = "A window which is not focused.";
};
urgent = mkOption {
type = colorSetModule;
default = {
border = "#2f343a"; background = "#900000"; text = "#ffffff";
indicator = "#900000"; childBorder = "#900000";
};
description = "A window which has its urgency hint activated.";
};
placeholder = mkOption {
type = colorSetModule;
default = {
border = "#000000"; background = "#0c0c0c"; text = "#ffffff";
indicator = "#000000"; childBorder = "#0c0c0c";
};
description = ''
Background and text color are used to draw placeholder window
contents (when restoring layouts). Border and indicator are ignored.
'';
};
};
};
default = {};
description = ''
Color settings. All color classes can be specified using submodules
with 'border', 'background', 'text', 'indicator' and 'childBorder' fields
and RGB color hex-codes as values. See default values for the reference.
Note that 'i3.config.colors.background' parameter takes a single RGB value.
See <link xlink:href="https://i3wm.org/docs/userguide.html#_changing_colors"/>.
'';
};
modes = mkOption {
type = types.attrsOf types.attrs;
default = {
resize = {
"Left" = "resize shrink width 10 px or 10 ppt";
"Down" = "resize grow height 10 px or 10 ppt";
"Up" = "resize shrink height 10 px or 10 ppt";
"Right" = "resize grow width 10 px or 10 ppt";
"Escape" = "mode default";
"Return" = "mode default";
};
};
description = ''
An attribute set that defines binding modes and keybindings
inside them
Only basic keybinding is supported (bindsym keycomb action),
for more advanced setup use 'i3.extraConfig'.
'';
};
bars = mkOption {
type = types.listOf barModule;
default = [{}];
description = ''
i3 bars settings blocks. Set to empty list to remove bars completely.
'';
};
startup = mkOption {
type = types.listOf startupModule;
default = [];
description = ''
Commands that should be executed at startup.
See <link xlink:href="https://i3wm.org/docs/userguide.html#_automatically_starting_applications_on_i3_startup"/>.
'';
example = literalExample ''
[
{ command = "systemctl --user restart polybar"; always = true; notification = false; }
{ command = "dropbox start"; notification = false; }
{ command = "firefox"; workspace = "1: web"; }
];
'';
};
gaps = mkOption {
type = types.nullOr (types.submodule {
options = {
inner = mkOption {
type = types.nullOr types.int;
default = null;
description = "Inner gaps value.";
example = 12;
};
outer = mkOption {
type = types.nullOr types.int;
default = null;
description = "Outer gaps value.";
example = 5;
};
smartGaps = mkOption {
type = types.bool;
default = false;
description = ''
This option controls whether to disable all gaps (outer and inner)
on workspace with a single container.
'';
example = true;
};
smartBorders = mkOption {
type = types.enum [ "on" "off" "no_gaps" ];
default = "off";
description = ''
This option controls whether to disable container borders on
workspace with a single container.
'';
};
};
});
default = null;
description = ''
i3gaps related settings.
Note that i3-gaps package should be set for this options to take effect.
'';
};
};
};
keybindingsStr = keybindings: concatStringsSep "\n" (
mapAttrsToList (keycomb: action: "bindsym ${keycomb} ${action}") keybindings
);
keycodebindingsStr = keycodebindings: concatStringsSep "\n" (
mapAttrsToList (keycomb: action: "bindcode ${keycomb} ${action}") keycodebindings
);
colorSetStr = c: concatStringsSep " " [ c.border c.background c.text c.indicator c.childBorder ];
criteriaStr = criteria: "[${concatStringsSep " " (mapAttrsToList (k: v: ''${k}="${v}"'') criteria)}]";
modeStr = name: keybindings: ''
mode "${name}" {
${keybindingsStr keybindings}
}
'';
assignStr = workspace: criteria: concatStringsSep "\n" (
map (c: "assign ${criteriaStr c} ${workspace}") criteria
);
barStr = { mode, hiddenState, position, workspaceButtons, statusCommand, ... }: ''
bar {
mode ${mode}
hidden_state ${hiddenState}
position ${position}
status_command ${statusCommand}
workspace_buttons ${if workspaceButtons then "yes" else "no"}
}
'';
gapsStr = with cfg.config.gaps; ''
${optionalString (inner != null) "gaps inner ${toString inner}"}
${optionalString (outer != null) "gaps outer ${toString outer}"}
${optionalString smartGaps "smart_gaps on"}
${optionalString (smartBorders != "off") "smart_borders ${smartBorders}"}
'';
floatingCriteriaStr = criteria: "for_window ${criteriaStr criteria} floating enable";
windowCommandsStr = { command, criteria, ... }: "for_window ${criteriaStr criteria} ${command}";
startupEntryStr = { command, always, notification, workspace, ... }: ''
${if always then "exec_always" else "exec"} ${
if (notification && workspace == null) then "" else "--no-startup-id"
} ${
if (workspace == null) then
command
else
"i3-msg 'workspace ${workspace}; exec ${command}'"
}
'';
configFile = pkgs.writeText "i3.conf" ((if cfg.config != null then with cfg.config; ''
font pango:${concatStringsSep ", " fonts}
floating_modifier ${floating.modifier}
new_window ${if window.titlebar then "normal" else "pixel"} ${toString window.border}
new_float ${if floating.titlebar then "normal" else "pixel"} ${toString floating.border}
hide_edge_borders ${window.hideEdgeBorders}
force_focus_wrapping ${if focus.forceWrapping then "yes" else "no"}
focus_follows_mouse ${if focus.followMouse then "yes" else "no"}
focus_on_window_activation ${focus.newWindow}
mouse_warping ${if focus.mouseWarping then "output" else "none"}
client.focused ${colorSetStr colors.focused}
client.focused_inactive ${colorSetStr colors.focusedInactive}
client.unfocused ${colorSetStr colors.unfocused}
client.urgent ${colorSetStr colors.urgent}
client.placeholder ${colorSetStr colors.placeholder}
client.background ${colors.background}
${keybindingsStr keybindings}
${keycodebindingsStr keycodebindings}
${concatStringsSep "\n" (mapAttrsToList modeStr modes)}
${concatStringsSep "\n" (mapAttrsToList assignStr assigns)}
${concatStringsSep "\n" (map barStr bars)}
${optionalString (gaps != null) gapsStr}
${concatStringsSep "\n" (map floatingCriteriaStr floating.criteria)}
${concatStringsSep "\n" (map windowCommandsStr window.commands)}
${concatStringsSep "\n" (map startupEntryStr startup)}
'' else "") + "\n" + cfg.extraConfig);
in
{
options = {
xsession.windowManager.i3 = {
enable = mkEnableOption "i3 window manager.";
package = mkOption {
type = types.package;
default = pkgs.i3;
defaultText = "pkgs.i3";
example = "pkgs.i3-gaps";
description = ''
i3 package to use.
If 'i3.config.gaps' settings are specified, 'pkgs.i3-gaps' will be set as a default package.
'';
};
config = mkOption {
type = types.nullOr configModule;
default = {};
description = "i3 configuration options.";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Extra configuration lines to add to ~/.config/i3/config.";
};
};
};
config = mkIf cfg.enable (mkMerge [
{
home.packages = [ cfg.package ];
xsession.windowManager.command = "${cfg.package}/bin/i3";
xdg.configFile."i3/config".source = configFile;
home.activation.checkI3 = dagEntryBefore [ "linkGeneration" ] ''
if ! cmp --quiet \
"${configFile}" \
"${config.xdg.configHome}/i3/config"; then
i3Changed=1
fi
'';
home.activation.reloadI3 = dagEntryAfter [ "linkGeneration" ] ''
if [[ -v i3Changed && -v DISPLAY ]]; then
echo "Reloading i3"
${cfg.package}/bin/i3-msg reload 1>/dev/null
fi
'';
}
(mkIf (cfg.config != null) {
xsession.windowManager.i3.package = mkDefault (
if (cfg.config.gaps != null) then pkgs.i3-gaps else pkgs.i3
);
})
]);
}