Fix KDE MIME defaults in xmonad session

nixos/home-manager.nix

@@ -6,33 +6,6 @@
   ...
 }: let
   mimeMap = desktopId: mimeTypes: lib.genAttrs mimeTypes (_: [desktopId]);
-in {
-  # Automatic garbage collection of old home-manager generations
-  nix.gc = {
-    automatic = true;
-    dates = "weekly";
-    options = "--delete-older-than 7d";
-  };
-
-  xdg.configFile."greenclip.toml".text = ''
-    [greenclip]
-      history_file = "~/.cache/greenclip.history"
-      max_history_length = 50
-      max_selection_size_bytes = 0
-      trim_space_from_selection = true
-      use_primary_selection_as_input = false
-      blacklisted_applications = []
-      enable_image_support = true
-      image_cache_directory = "~/.cache/greenclip"
-      static_history = []
-  '';
-
-  xdg.configFile."zellij/config.kdl".source =
-    config.lib.file.mkOutOfStoreSymlink
-    "${config.home.homeDirectory}/dotfiles/dotfiles/config/zellij/config.kdl";
-
-  xdg.mimeApps = lib.mkIf nixos.config.myModules.desktop.enable (
-    let
   browser = "google-chrome.desktop";
   imageViewer = "org.kde.gwenview.desktop";
   pdfViewer = "okularApplication_pdf.desktop";
@@ -47,7 +20,6 @@ in {
   wordProcessor = "writer.desktop";
   spreadsheet = "calc.desktop";
   presentation = "impress.desktop";
-
   defaultApplications =
     (mimeMap imageViewer [
       "image/avif"
@@ -163,12 +135,82 @@ in {
       "x-scheme-handler/element" = ["element-desktop.desktop"];
       "x-scheme-handler/magnet" = ["transmission-gtk.desktop"];
     };
-    in {
+  mimeAppsListText = let
+    formatApplications = applications:
+      lib.concatStringsSep "\n" (
+        lib.mapAttrsToList (
+          mimeType: desktopIds: "${mimeType}=${lib.concatStringsSep ";" desktopIds};"
+        )
+        applications
+      );
+  in ''
+    [Added Associations]
+    ${formatApplications defaultApplications}
+
+    [Default Applications]
+    ${formatApplications defaultApplications}
+
+    [Removed Associations]
+  '';
+in {
+  # Automatic garbage collection of old home-manager generations
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 7d";
+  };
+
+  xdg.configFile."greenclip.toml".text = ''
+    [greenclip]
+      history_file = "~/.cache/greenclip.history"
+      max_history_length = 50
+      max_selection_size_bytes = 0
+      trim_space_from_selection = true
+      use_primary_selection_as_input = false
+      blacklisted_applications = []
+      enable_image_support = true
+      image_cache_directory = "~/.cache/greenclip"
+      static_history = []
+  '';
+
+
+  xdg.configFile."zellij/config.kdl".source =
+    config.lib.file.mkOutOfStoreSymlink
+    "${config.home.homeDirectory}/dotfiles/dotfiles/config/zellij/config.kdl";
+
+  xdg.configFile."menus/applications.menu" = lib.mkIf nixos.config.myModules.desktop.enable {
+    source = "${pkgs.kdePackages.plasma-workspace}/etc/xdg/menus/plasma-applications.menu";
+  };
+
+  xdg.configFile."kde-mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.configFile."none+xmonad-mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.configFile."xmonad-mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.configFile."hyprland-mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.dataFile."mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.dataFile."applications/kde-mimeapps.list" = lib.mkIf nixos.config.myModules.desktop.enable {
+    text = mimeAppsListText;
+  };
+
+  xdg.mimeApps = lib.mkIf nixos.config.myModules.desktop.enable {
     enable = true;
     associations.added = defaultApplications;
     inherit defaultApplications;
-    }
+  };
-  );
 
   home.activation.refreshChromeDesktopMimeCache = lib.hm.dag.entryAfter ["writeBoundary"] ''
     applications_dir="$HOME/.local/share/applications"
@@ -180,6 +222,7 @@ in {
       do
         if [ -f "$desktop_file" ]; then
           ${pkgs.gnused}/bin/sed -i \
+            -e 's,application/pdf;,,g' \
             -e 's,image/gif;,,g' \
             -e 's,image/jpeg;,,g' \
             -e 's,image/png;,,g' \
@@ -188,10 +231,34 @@ in {
         fi
       done
 
+      for desktop_file in "$applications_dir"/okular*.desktop "$applications_dir"/vlc*.desktop; do
+        if [ -f "$desktop_file" ]; then
+          ${pkgs.gnused}/bin/sed -i \
+            -e 's,image/avif;,,g' \
+            -e 's,image/bmp;,,g' \
+            -e 's,image/gif;,,g' \
+            -e 's,image/heic;,,g' \
+            -e 's,image/heif;,,g' \
+            -e 's,image/jpeg;,,g' \
+            -e 's,image/jxl;,,g' \
+            -e 's,image/png;,,g' \
+            -e 's,image/svg+xml;,,g' \
+            -e 's,image/svg+xml-compressed;,,g' \
+            -e 's,image/tiff;,,g' \
+            -e 's,image/vnd.microsoft.icon;,,g' \
+            -e 's,image/webp;,,g' \
+            "$desktop_file"
+        fi
+      done
+
       ${pkgs.desktop-file-utils}/bin/update-desktop-database "$applications_dir" >/dev/null 2>&1 || true
     fi
   '';
 
+  home.activation.refreshKdeServiceCache = lib.hm.dag.entryAfter ["refreshChromeDesktopMimeCache"] ''
+    ${pkgs.kdePackages.kservice}/bin/kbuildsycoca6 --noincremental >/dev/null 2>&1 || true
+  '';
+
   xsession = {
     enable = true;
     preferStatusNotifierItems = true;

nixos/imalison.nix

@@ -184,16 +184,11 @@
       type = "Application";
       categories = [ "Network" "WebBrowser" ];
       mimeType = [
-        "application/pdf"
         "application/rdf+xml"
         "application/rss+xml"
         "application/xhtml+xml"
         "application/xhtml_xml"
         "application/xml"
-        "image/gif"
-        "image/jpeg"
-        "image/png"
-        "image/webp"
         "text/html"
         "text/xml"
         "x-scheme-handler/http"