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GamePad Controlled Launcher

This is a simple application launcher designed to be an initial screen for my home media center. It respects gamepad inputs and displays a list of connected gamepads, a clock and a row of applications to run.

Screenshot

Lucide icons are used for gamepad status indication.

The launcher converts gamepad inputs into keyboard ones.

Gamepad Button(s) Keyboard Key(s) Action
DPad Buttons Arrow Keys Move the focus indicator
Bottom Action Button Enter Run the selected application
Up Action Button F5 Reload configuration

Configuration

The config file should be located at $XDG_CONFIG_HOME/gpcl.toml. You can configure window layout and define application list.

Example config:

[layout]
top_panel_height = 80 # default: 32
clock_height = 540 # default: 270
icon_size = 256 # default: 128

[style]
font = "Liberation" # default: Ubuntu
font_weight = 700 # default: 600
bg_color = "#12781c" # default: #166dbb
panel_color = "#15ff0040" # default: #00000040
text_color = "#d9d9d9" # default: #ffffff

[[items]]
name = "Steam"
icon = "/usr/share/icons/hicolor/256x256/apps/steam.png"
exec = "steam -gamepadui"

[[items]]
name = "Kodi"
icon = "/usr/share/icons/hicolor/256x256/apps/kodi.png"
exec = "kodi"

[[items]]
name = "RetroArch"
icon = "/usr/share/pixmaps/retroarch.svg"
exec = "retroarch"

[[items]]
name = "Reboot"
icon = "/home/user/.local/share/pixmaps/reboot.png"
exec = "dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.Reboot boolean:true"

[[items]]
name = "Shutdown"
icon = "/home/user/.local/share/pixmaps/shutdown.png"
exec = "dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.PowerOff boolean:true"

The layout and style sections and their parameters are optional. Note that layout parameters are defined in logical pixels.

Build

The launcher is written in Rust, so it is built with cargo. It uses Slint as a graphical toolkit and uses winit as a backend (required to work with windowing API not provided by Slint).

You can build it for Wayland, X11 or for both platforms using wayland (default) and x11 features:

  • cargo build --release produces the Wayland-only build,
  • cargo build --release --features x11 produces the universal build that support both Wayland and X11
  • cargo build --release --no-default-features --features x11 produces the X11-only build