nixconf/home-manager/plasma.nix

{ pkgs, ... }:
{
  programs.plasma = {
    enable = true;

    hotkeys.commands."launch-konsole" = {
      name = "Launch Konsole";
      key = "Meta+Alt+K";
      command = "konsole";
    };

    fonts = {
      general = {
        family = "JetBrains Mono";
        pointSize = 12;
      };
    };

    desktop.widgets = [
      {
        plasmusicToolbar = {
          position = {
            horizontal = 51;
            vertical = 100;
          };
          size = {
            width = 250;
            height = 250;
          };
        };
      }
    ];

    panels = [
      # Windows-like panel at the bottom
      {
        location = "bottom";
        widgets = [
          # We can configure the widgets by adding the name and config
          # attributes. For example to add the the kickoff widget and set the
          # icon to "nix-snowflake-white" use the below configuration. This will
          # add the "icon" key to the "General" group for the widget in
          # ~/.config/plasma-org.kde.plasma.desktop-appletsrc.
          {
            name = "org.kde.plasma.kickoff";
            config = {
              General = {
                icon = "nix-snowflake-white";
                alphaSort = true;
              };
            };
          }
          # Or you can configure the widgets by adding the widget-specific options for it.
          # See modules/widgets for supported widgets and options for these widgets.
          # For example:
          {
            kickoff = {
              sortAlphabetically = true;
              icon = "nix-snowflake-white";
            };
          }
          # Adding configuration to the widgets can also for example be used to
          # pin apps to the task-manager, which this example illustrates by
          # pinning dolphin and konsole to the task-manager by default with widget-specific options.
          {
            iconTasks = {
              launchers = [
                "applications:org.kde.dolphin.desktop"
                "applications:org.kde.konsole.desktop"
              ];
            };
          }
          # Or you can do it manually, for example:
          {
            name = "org.kde.plasma.icontasks";
            config = {
              General = {
                launchers = [
                  "applications:org.kde.dolphin.desktop"
                  "applications:org.kde.konsole.desktop"
                ];
              };
            };
          }
          # If no configuration is needed, specifying only the name of the
          # widget will add them with the default configuration.
          "org.kde.plasma.marginsseparator"
          # If you need configuration for your widget, instead of specifying the
          # the keys and values directly using the config attribute as shown
          # above, plasma-manager also provides some higher-level interfaces for
          # configuring the widgets. See modules/widgets for supported widgets
          # and options for these widgets. The widgets below shows two examples
          # of usage, one where we add a digital clock, setting 12h time and
          # first day of the week to Sunday and another adding a systray with
          # some modifications in which entries to show.
          {
            digitalClock = {
              calendar.firstDayOfWeek = "sunday";
              time.format = "12h";
            };
          }
          {
            systemTray.items = {
              # We explicitly show bluetooth and battery
              shown = [
                "org.kde.plasma.battery"
                "org.kde.plasma.bluetooth"
              ];
              # And explicitly hide networkmanagement and volume
              hidden = [
                "org.kde.plasma.networkmanagement"
                "org.kde.plasma.volume"
              ];
            };
          }
        ];
        hiding = "none";
      }
      # Application name, Global menu and Song information and playback controls at the top
      {
        location = "top";
        height = 26;
        widgets = [
          {
            applicationTitleBar = {
              behavior = {
                activeTaskSource = "activeTask";
              };
              layout = {
                elements = [ "windowTitle" ];
                horizontalAlignment = "left";
                showDisabledElements = "deactivated";
                verticalAlignment = "center";
              };
              overrideForMaximized.enable = false;
              titleReplacements = [
                {
                  type = "regexp";
                  originalTitle = "^Brave Web Browser$";
                  newTitle = "Brave";
                }
                {
                  type = "regexp";
                  originalTitle = ''\\bDolphin\\b'';
                  newTitle = "File manager";
                }
              ];
              windowTitle = {
                font = {
                  bold = false;
                  fit = "fixedSize";
                  size = 12;
                };
                hideEmptyTitle = true;
                margins = {
                  bottom = 0;
                  left = 10;
                  right = 5;
                  top = 0;
                };
                source = "appName";
              };
            };
          }
          "org.kde.plasma.appmenu"
          "org.kde.plasma.panelspacer"
          {
            plasmusicToolbar = {
              panelIcon = {
                albumCover = {
                  useAsIcon = false;
                  radius = 8;
                };
                icon = "view-media-track";
              };
              playbackSource = "auto";
              musicControls.showPlaybackControls = true;
              songText = {
                displayInSeparateLines = true;
                maximumWidth = 640;
                scrolling = {
                  behavior = "alwaysScroll";
                  speed = 3;
                };
              };
            };
          }
        ];
      }
    ];

    window-rules = [
      {
        description = "Dolphin";
        match = {
          window-class = {
            value = "dolphin";
            type = "substring";
          };
          window-types = [ "normal" ];
        };
        apply = {
          noborder = {
            value = true;
            apply = "force";
          };
          # `apply` defaults to "apply-initially"
          maximizehoriz = true;
          maximizevert = true;
        };
      }
    ];

    powerdevil = {
      AC = {
        powerButtonAction = "lockScreen";
        autoSuspend = {
          action = "shutDown";
          idleTimeout = 1000;
        };
        turnOffDisplay = {
          idleTimeout = 1000;
          idleTimeoutWhenLocked = "immediately";
        };
      };
      battery = {
        powerButtonAction = "sleep";
        whenSleepingEnter = "standbyThenHibernate";
      };
      lowBattery = {
        whenLaptopLidClosed = "hibernate";
      };
    };

    kwin = {
      edgeBarrier = 0; # Disables the edge-barriers introduced in plasma 6.1
      cornerBarrier = false;

      scripts.polonium.enable = true;
    };

    kscreenlocker = {
      lockOnResume = true;
      timeout = 10;
    };

    #
    # Some mid-level settings:
    #
    shortcuts = {
      ksmserver = {
        "Lock Session" = [
          "Screensaver"
          "Meta+Ctrl+Alt+L"
        ];
      };

      kwin = {
        "Expose" = "Meta+,";
        "Switch Window Down" = "Meta+J";
        "Switch Window Left" = "Meta+H";
        "Switch Window Right" = "Meta+L";
        "Switch Window Up" = "Meta+K";
      };
    };

    #
    # Some low-level settings:
    #
    configFile = {
      baloofilerc."Basic Settings"."Indexing-Enabled" = false;
      kwinrc."org.kde.kdecoration2".ButtonsOnLeft = "SF";
      kwinrc.Desktops.Number = {
        value = 8;
        # Forces kde to not change this value (even through the settings app).
        immutable = true;
      };
    };
  };
}