nixpkgs/pkgs/desktops/plasma-5/kwin/default.nix

{
  mkDerivation, lib,
  extra-cmake-modules, kdoctools, fetchpatch,

  libepoxy, lcms2, libICE, libSM, libcap, libdrm, libinput, libxkbcommon, mesa,
  pipewire, udev, wayland, xcb-util-cursor, xwayland,
  plasma-wayland-protocols, wayland-protocols, libxcvt,

  qtdeclarative, qtmultimedia, qtquickcontrols2, qtscript, qtsensors,
  qtvirtualkeyboard, qtx11extras,

  breeze-qt5, kactivities, kcompletion, kcmutils, kconfig, kconfigwidgets,
  kcoreaddons, kcrash, kdeclarative, kdecoration, kglobalaccel, ki18n,
  kiconthemes, kidletime, kinit, kio, knewstuff, knotifications, kpackage,
  krunner, kscreenlocker, kservice, kwayland, kwidgetsaddons,
  kwindowsystem, kxmlgui, plasma-framework, libqaccessibilityclient,
  python3
}:

# TODO (ttuegel): investigate qmlplugindump failure

mkDerivation {
  pname = "kwin";
  nativeBuildInputs = [ extra-cmake-modules kdoctools ];
  buildInputs = [
    libepoxy lcms2 libICE libSM libcap libdrm libinput libxkbcommon mesa pipewire
    udev wayland xcb-util-cursor xwayland
    libxcvt plasma-wayland-protocols wayland-protocols

    qtdeclarative qtmultimedia qtquickcontrols2 qtscript qtsensors
    qtvirtualkeyboard qtx11extras

    breeze-qt5 kactivities kcmutils kcompletion kconfig kconfigwidgets
    kcoreaddons kcrash kdeclarative kdecoration kglobalaccel ki18n kiconthemes
    kidletime kinit kio knewstuff knotifications kpackage krunner kscreenlocker
    kservice kwayland kwidgetsaddons kwindowsystem kxmlgui
    plasma-framework libqaccessibilityclient

  ];
  outputs = [ "out" "dev" ];

  postPatch = ''
    patchShebangs src/effects/strip-effect-metadata.py
  '';

  patches = [
    ./0001-follow-symlinks.patch
    ./0002-xwayland.patch
    ./0003-plugins-qpa-allow-using-nixos-wrapper.patch
    ./0001-NixOS-Unwrap-executable-name-for-.desktop-search.patch
    # Pass special environments through arguemnts to `kwin_wayland`, bypassing
    # ld.so(8) environment stripping due to `kwin_wayland`'s capabilities.
    # We need this to have `TZDIR` correctly set for `plasmashell`, or
    # everything related to timezone, like clock widgets, will be broken.
    # https://invent.kde.org/plasma/kwin/-/merge_requests/1590
    (fetchpatch {
      url = "https://invent.kde.org/plasma/kwin/-/commit/9a008b223ad696db3bf5692750f2b74e578e08b8.diff";
      sha256 = "sha256-f35G+g2MVABLDbAkCed3ZmtDWrzYn1rdD08mEx35j4k=";
    })
  ];
  CXXFLAGS = [
    ''-DNIXPKGS_XWAYLAND=\"${lib.getBin xwayland}/bin/Xwayland\"''
  ];
  postInstall = ''
    # Some package(s) refer to these service types by the wrong name.
    # I would prefer to patch those packages, but I cannot find them!
    ln -s ''${!outputBin}/share/kservicetypes5/kwineffect.desktop \
          ''${!outputBin}/share/kservicetypes5/kwin-effect.desktop
    ln -s ''${!outputBin}/share/kservicetypes5/kwinscript.desktop \
          ''${!outputBin}/share/kservicetypes5/kwin-script.desktop
  '';
}