[DRUN] Add option to exclude categories from drun #2102 (#2104)

* Add option to exclude categories from drun

* Fix memory leak when both -drun-categories and -drun-exclude-categories are used

* update docs

config/config.c

@@ -128,6 +128,8 @@ Settings config = {
     .drun_match_fields = "name,generic,exec,categories,keywords",
     /** Only show entries in this category */
     .drun_categories = NULL,
+    /** Exclude entries in this category */
+    .drun_exclude_categories = NULL,
     /** Desktop entry show actions */
     .drun_show_actions = FALSE,
     /** Desktop format display */

doc/rofi.1.markdown

@@ -374,6 +374,10 @@ Tokenize the input.
 
 Only show desktop files that are present in the listed categories.
 
+`-drun-exclude-categories` *category1*,*category2*
+
+Exclude desktop files that are present in the listed categories.
+
 `-drun-match-fields` *field1*,*field2*,...
 
 When using `drun`, match only with the specified Desktop entry fields.

include/settings.h

@@ -119,6 +119,8 @@ typedef struct {
   char *drun_match_fields;
   /** Only show entries in this category */
   char *drun_categories;
+  /** Exclude entries in this category */
+  char *drun_exclude_categories;
   /** Desktop entry show actions */
   unsigned int drun_show_actions;
   /** Desktop format display */

source/modes/drun.c

@@ -215,6 +215,7 @@ struct _DRunModePrivateData {
   unsigned int expected_line_height;
 
   char **show_categories;
+  char **exclude_categories;
 
   // Theme
   const gchar *icon_theme;
@@ -722,6 +723,19 @@ static void read_desktop_file(DRunModePrivateData *pd, const char *root,
     }
   }
 
+  if (pd->exclude_categories) {
+    if (categories == NULL) {
+      categories = g_key_file_get_locale_string_list(
+          kf, DRUN_GROUP_NAME, "Categories", NULL, NULL, NULL);
+    }
+    if (rofi_strv_contains((const char *const *)categories,
+                            (const char *const *)pd->exclude_categories)) {
+      g_strfreev(categories);
+      g_key_file_free(kf);
+      return;
+    }
+  }
+
   size_t nl = ((pd->cmd_list_length) + 1);
   if (nl >= pd->cmd_list_length_actual) {
     pd->cmd_list_length_actual += 256;
@@ -1320,6 +1334,10 @@ static int drun_mode_init(Mode *sw) {
     pd->show_categories = g_strsplit(config.drun_categories, ",", 0);
   }
 
+  if (config.drun_exclude_categories && *(config.drun_exclude_categories)) {
+    pd->exclude_categories = g_strsplit(config.drun_exclude_categories, ",", 0);
+  }
+
   drun_mode_parse_entry_fields();
   drun_mode_parse_display_format();
   get_apps(pd);
@@ -1473,6 +1491,7 @@ static void drun_mode_destroy(Mode *sw) {
 
     g_strfreev(rmpd->current_desktop_list);
     g_strfreev(rmpd->show_categories);
+    g_strfreev(rmpd->exclude_categories);
     g_free(rmpd);
     mode_set_private_data(sw, NULL);
   }

source/xrmoptions.c

@@ -241,6 +241,12 @@ static XrmOption xrmOptions[] = {
      NULL,
      "Only show Desktop entry from these categories",
      CONFIG_DEFAULT},
+    {xrm_String,
+    "drun-exclude-categories",
+    {.str = &config.drun_exclude_categories},
+    NULL,
+    "Exclude Desktop entries from these categories",
+    CONFIG_DEFAULT},
     {xrm_Boolean,
      "drun-show-actions",
      {.num = &config.drun_show_actions},