rambox: fix crash when native filesystem dialogs are created

pkgs/applications/networking/instant-messengers/rambox/default.nix

@@ -1,4 +1,6 @@
-{ stdenv, newScope, makeWrapper, electron, xdg_utils, makeDesktopItem
+{ stdenv, newScope, makeWrapper
+, wrapGAppsHook, gnome3, glib
+, electron, xdg_utils, makeDesktopItem
 , auth0ClientID ? "0spuNKfIGeLAQ_Iki9t3fGxbfJl3k8SU"
 , auth0Domain ? "nixpkgs.auth0.com" }:
 
@@ -26,16 +28,25 @@ with self;
 stdenv.mkDerivation {
   name = "rambox-${rambox-bare.version}";
 
-  nativeBuildInputs = [ makeWrapper ];
+  nativeBuildInputs = [ makeWrapper wrapGAppsHook ];
 
+  buildInputs = [ glib gnome3.gsettings_desktop_schemas ];
   unpackPhase = ":";
 
+  dontWrapGApps = true; # we only want $gappsWrapperArgs here
+
   installPhase = ''
-    makeWrapper ${electron}/bin/electron $out/bin/rambox \
+    runHook preInstall
-      --add-flags "${rambox-bare} --without-update" \
-      --prefix PATH : ${xdg_utils}/bin
     mkdir -p $out/share/applications
     ln -s ${desktopItem}/share/applications/* $out/share/applications
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    makeWrapper ${electron}/bin/electron $out/bin/rambox \
+      --add-flags "${rambox-bare} --without-update" \
+      "''${gappsWrapperArgs[@]}" \
+      --prefix PATH : ${xdg_utils}/bin
   '';
 
   inherit (rambox-bare.meta // {