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feh: add buttons option

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Use `null` to disable keybindings or button mappings.
This commit is contained in:
Michael Hoang 2020-01-30 20:44:54 +11:00 committed by Nikita Uvarov
parent a591e8f9e4
commit 9799d3de2d
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GPG key ID: F7A5FB3A7C10EF96
1 changed files with 30 additions and 8 deletions
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38
modules/programs/feh.nix
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@ -7,7 +7,7 @@ let
cfg = config.programs.feh; cfg = config.programs.feh;
disableBinding = func: key: func; disableBinding = func: key: func;
enableBinding = func: key: "${func} ${key}"; enableBinding = func: key: "${func} ${toString key}";
in in
@ -15,12 +15,25 @@ in
options.programs.feh = { options.programs.feh = {
enable = mkEnableOption "feh - a fast and light image viewer"; enable = mkEnableOption "feh - a fast and light image viewer";
buttons = mkOption {
default = {};
type = with types; attrsOf (nullOr (either str int));
example = { zoom_in = 4; zoom_out = "C-4"; };
description = ''
Override feh's default mouse button mapping. If you want to disable an
action, set its value to null.
See <link xlink:href="https://man.finalrewind.org/1/feh/#x425554544f4e53"/> for
default bindings and available commands.
'';
};
keybindings = mkOption { keybindings = mkOption {
default = {}; default = {};
type = types.attrsOf types.str; type = types.attrsOf (types.nullOr types.str);
example = { zoom_in = "plus"; zoom_out = "minus"; }; example = { zoom_in = "plus"; zoom_out = "minus"; };
description = '' description = ''
Set keybindings. Override feh's default keybindings. If you want to disable a keybinding
set its value to null.
See <link xlink:href="https://man.finalrewind.org/1/feh/#x4b455953"/> for See <link xlink:href="https://man.finalrewind.org/1/feh/#x4b455953"/> for
default bindings and available commands. default bindings and available commands.
''; '';
@ -28,14 +41,23 @@ in
}; };
config = mkIf cfg.enable { config = mkIf cfg.enable {
assertions = [
{
assertion = ((filterAttrs (n: v: v == "") cfg.keybindings) == {});
message = "To disable a keybinding, use `null` instead of an empty string.";
}
];
home.packages = [ pkgs.feh ]; home.packages = [ pkgs.feh ];
xdg.configFile."feh/keys".text = '' xdg.configFile."feh/buttons".text = ''
# Disable default keybindings ${concatStringsSep "\n" (mapAttrsToList disableBinding (filterAttrs (n: v: v == null) cfg.buttons))}
${concatStringsSep "\n" (mapAttrsToList disableBinding cfg.keybindings)} ${concatStringsSep "\n" (mapAttrsToList enableBinding (filterAttrs (n: v: v != null) cfg.buttons))}
'';
# Enable new keybindings xdg.configFile."feh/keys".text = ''
${concatStringsSep "\n" (mapAttrsToList enableBinding cfg.keybindings)} ${concatStringsSep "\n" (mapAttrsToList disableBinding (filterAttrs (n: v: v == null) cfg.keybindings))}
${concatStringsSep "\n" (mapAttrsToList enableBinding (filterAttrs (n: v: v != null) cfg.keybindings))}
''; '';
}; };
} }