onboard: init at 1.4.1

Add testing reqs, but keep tests disabled

Tests are runnable but still produce errors.

To get tests working, add locale setting, replace killall
and add nose package. To run the tests enable 'doCheck'.

Hunspell needs to be explicitly installed to use.

Patch SpellCheck.py to put hunspell in system datadir location.
For example, '/var/run/current-system/sw/share/hunspell/'
or '${HOME}/.nix-profile/share/hunspell/'

To get rid of atspi errors set
'services.gnome3.at-spi2-core.enable = true'

pkgs/applications/misc/onboard/default.nix

@@ -0,0 +1,156 @@
+{ fetchurl
+, stdenv
+, aspellWithDicts
+, at_spi2_core ? null
+, atspiSupport ? true
+, bash
+, glib
+, glibcLocales
+, gnome3
+, gobjectIntrospection
+, gsettings_desktop_schemas
+, gtk3
+, hunspell
+, hunspellDicts
+, hunspellWithDicts
+, intltool
+, isocodes
+, libcanberra_gtk3
+, libudev
+, libxkbcommon
+, pkgconfig
+, procps
+, python3
+, wrapGAppsHook
+, xorg
+, yelp
+}:
+
+let
+  customHunspell = hunspellWithDicts [hunspellDicts.en-us];
+  majorVersion = "1.4";
+  version = "${majorVersion}.1";
+in python3.pkgs.buildPythonApplication rec {
+  name = "onboard-${version}";
+  src = fetchurl {
+    url = "https://launchpad.net/onboard/${majorVersion}/${version}/+download/${name}.tar.gz";
+    sha256 = "01cae1ac5b1ef1ab985bd2d2d79ded6fc99ee04b1535cc1bb191e43a231a3865";
+  };
+
+  patches = [
+    # Allow loading hunspell dictionaries installed in NixOS system path
+    ./hunspell-use-xdg-datadirs.patch
+  ];
+
+  # For tests
+  LC_ALL = "en_US.UTF-8";
+  doCheck = false;
+  checkInputs = [
+    # for Onboard.SpellChecker.aspell_cmd doctests
+    (aspellWithDicts (dicts: with dicts; [ en ]))
+
+    # for Onboard.SpellChecker.hunspell_cmd doctests
+    customHunspell
+
+    # for Onboard.SpellChecker.hunspell doctests
+    hunspellDicts.en-us
+    hunspellDicts.es-es
+    hunspellDicts.it-it
+
+    python3.pkgs.nose
+  ];
+
+  propagatedBuildInputs = [
+    glib
+    python3
+    python3.pkgs.dbus-python
+    python3.pkgs.distutils_extra
+    python3.pkgs.pyatspi
+    python3.pkgs.pycairo
+    python3.pkgs.pygobject3
+    python3.pkgs.systemd
+  ];
+
+  buildInputs = [
+    bash
+    gnome3.dconf
+    gsettings_desktop_schemas
+    gtk3
+    hunspell
+    isocodes
+    libcanberra_gtk3
+    libudev
+    libxkbcommon
+    wrapGAppsHook
+    xorg.libXtst
+    xorg.libxkbfile
+  ] ++ stdenv.lib.optional atspiSupport at_spi2_core;
+
+  nativeBuildInputs = [
+    glibcLocales
+    intltool
+    pkgconfig
+  ];
+
+  propagatedUserEnvPkgs = [
+    gnome3.dconf
+  ];
+
+  preBuild = ''
+    # Unnecessary file, has been removed upstream
+    # https://github.com/NixOS/nixpkgs/pull/24986#issuecomment-296114062
+    rm -r Onboard/pypredict/attic
+
+    substituteInPlace  ./scripts/sokSettings.py \
+      --replace "#!/usr/bin/python3" "" \
+      --replace "PYTHON_EXECUTABLE," "\"$out/bin/onboard-settings\"" \
+      --replace '"-cfrom Onboard.settings import Settings\ns = Settings(False)"' ""
+
+    chmod -x ./scripts/sokSettings.py
+
+    patchShebangs .
+
+    substituteInPlace  ./Onboard/LanguageSupport.py \
+      --replace "/usr/share/xml/iso-codes" "${isocodes}/share/xml/iso-codes" \
+      --replace "/usr/bin/yelp" "${yelp}/bin/yelp"
+
+    substituteInPlace  ./Onboard/Indicator.py \
+      --replace   "/usr/bin/yelp" "${yelp}/bin/yelp"
+
+    substituteInPlace  ./gnome/Onboard_Indicator@onboard.org/extension.js \
+      --replace "/usr/bin/yelp" "${yelp}/bin/yelp"
+
+    substituteInPlace  ./Onboard/SpellChecker.py \
+      --replace "/usr/lib" "$out/lib"
+
+    substituteInPlace  ./data/org.onboard.Onboard.service  \
+      --replace "/usr/bin" "$out/bin"
+
+    substituteInPlace  ./Onboard/utils.py \
+      --replace "/usr/share" "$out/share"
+    substituteInPlace  ./onboard-defaults.conf.example \
+      --replace "/usr/share" "$out/share"
+    substituteInPlace  ./Onboard/Config.py \
+      --replace "/usr/share/onboard" "$out/share/onboard"
+
+    substituteInPlace  ./Onboard/WordSuggestions.py \
+      --replace "/usr/bin" "$out/bin"
+
+    # killall is dangerous on non-gnu platforms. Use pkill instead.
+    substituteInPlace  ./setup.py \
+      --replace '"killall",' '"${procps}/bin/pkill", "-x",'
+  '';
+
+  postInstall = ''
+    cp onboard-default-settings.gschema.override.example $out/share/glib-2.0/schemas/10_onboard-default-settings.gschema.override
+
+    glib-compile-schemas $out/share/glib-2.0/schemas/
+  '';
+
+  meta = {
+    homepage = https://launchpad.net/onboard;
+    description = "An onscreen keyboard useful for tablet PC users and for mobility impaired users.";
+    maintainers = with stdenv.lib.maintainers; [ johnramsden ];
+    license = stdenv.lib.licenses.gpl3;
+  };
+}

pkgs/applications/misc/onboard/hunspell-use-xdg-datadirs.patch

@@ -0,0 +1,20 @@
+diff --git a/Onboard/SpellChecker.py b/Onboard/SpellChecker.py
+index 6a92757..46e755e 100644
+--- a/Onboard/SpellChecker.py
++++ b/Onboard/SpellChecker.py
+@@ -506,6 +506,10 @@ class hunspell(SCBackend):
+         if dicpath:
+             paths.extend(dicpath.split(pathsep))
+ 
++        datadirs = os.getenv("XDG_DATA_DIRS")
++        if datadirs:
++            paths.extend(map(lambda datadir: os.path.join(datadir, 'hunspell'), datadirs.split(pathsep)))
++
+         paths.extend(LIBDIRS)
+ 
+         home = os.getenv("HOME")
+@@ -723,4 +727,3 @@ class aspell_cmd(SCBackend):
+             _logger.error(_format("Failed to execute '{}', {}", \
+                             " ".join(args), e))
+         return [id for id in dict_ids if id]
+-

pkgs/top-level/all-packages.nix

@@ -1186,6 +1186,8 @@ with pkgs;
 
   nfdump = callPackage ../tools/networking/nfdump { };
 
+  onboard = callPackage ../applications/misc/onboard { };
+
   patdiff = callPackage ../tools/misc/patdiff { };
 
   playerctl = callPackage ../tools/audio/playerctl { };