clan-app: prepare icon support on linux

For some reason the icon is not shown when using the gtk backend but at
least the API calls look correct.

pkgs/clan-app/clan_app/app.py

@@ -39,6 +39,8 @@ def app_run(app_opts: ClanAppOptions) -> int:
 
     webview = Webview(debug=app_opts.debug)
     webview.title = "Clan App"
+    # This seems to call the gtk api correctly but and gtk also seems to our icon, but somehow the icon is not loaded.
+    webview.icon = "clan-white"
 
     def cancel_task(
         task_id: str, *, op_key: str

pkgs/clan-app/clan_app/deps/webview/_webview_ffi.py

@@ -88,6 +88,9 @@ class _WebviewLibrary:
         self.webview_set_title = self.lib.webview_set_title
         self.webview_set_title.argtypes = [c_void_p, c_char_p]
 
+        self.webview_set_icon = self.lib.webview_set_icon
+        self.webview_set_icon.argtypes = [c_void_p, c_char_p]
+
         self.webview_set_size = self.lib.webview_set_size
         self.webview_set_size.argtypes = [c_void_p, c_int, c_int, c_int]
 

pkgs/clan-app/clan_app/deps/webview/webview.py

@@ -84,6 +84,15 @@ class Webview:
         _webview_lib.webview_set_title(self._handle, _encode_c_string(value))
         self._title = value
 
+    @property
+    def icon(self) -> str:
+        return self._icon
+
+    @icon.setter
+    def icon(self, value: str) -> None:
+        _webview_lib.webview_set_icon(self._handle, _encode_c_string(value))
+        self._icon = value
+
     def destroy(self) -> None:
         for name in list(self._callbacks.keys()):
             self.unbind(name)

pkgs/webview-lib/default.nix

@@ -11,8 +11,8 @@ pkgs.clangStdenv.mkDerivation {
   src = pkgs.fetchFromGitHub {
     owner = "clan-lol";
     repo = "webview";
-    rev = "33374e1030c5e243dac491e6c0e84d32e895c2e5";
+    rev = "7d24f0192765b7e08f2d712fae90c046d08f318e";
-    sha256 = "sha256-8BgfQL0V3f2n5lq5MDwJCJo6MkVSYvJkwpKCj2tBRz8=";
+    hash = "sha256-yokVI9tFiEEU5M/S2xAeJOghqqiCvTelLo8WLKQZsSY=";
   };
 
   outputs = [
@@ -20,6 +20,12 @@ pkgs.clangStdenv.mkDerivation {
     "dev"
   ];
 
+  enableParallelBuilding = true;
+
+  cmakeFlags = [
+    "-DWEBVIEW_BUILD_TESTS=OFF"
+  ];
+
   # Dependencies used during the build process, if any
   nativeBuildInputs = with pkgs; [
     gnumake