Plugin Interface: Add GUI callbacks

 Rename ext_menubar to a more appropriate plugin_if.

 External menus can be implemented by plugins to present
 additional menus for deep-packet analysis. One side-effect
 of such menus being implemented as plugins is, that they
 are being executed in different threads and therefore can
 only use limited access to the main GUI. Also, there is
 no safe cross-gui (GTK and Qt) way for many features.

 This patch implements a first functionality, by which a
 plugin implemented using ext_menubar can apply a display
 filter to the main view.

 For now the implementation supports filtering, as well as
 saving a preference.

Change-Id: Iffe4caa954bbeb8ce356352de4dae348a50efba9
Reviewed-on: https://code.wireshark.org/review/8773
Reviewed-by: Roland Knall <rknall@gmail.com>
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/ui/preference_utils.c b/ui/preference_utils.c
index 1e358bd7d0..0f80ef6742 100644
--- a/ui/preference_utils.c
+++ b/ui/preference_utils.c
@@ -273,6 +273,48 @@ prefs_main_write(void)
   }
 }
 
+gboolean
+prefs_store_ext(const char * module_name, const char *pref_name, const char *pref_value)
+{
+  module_t * module = NULL;
+  pref_t * pref = NULL;
+  gboolean pref_changed = TRUE;
+
+  if ( ! prefs_is_registered_protocol(module_name))
+    return FALSE;
+
+  module = prefs_find_module(module_name);
+  if ( ! module )
+    return FALSE;
+
+  pref = prefs_find_preference(module, pref_name);
+
+  if (!pref)
+    return FALSE;
+
+  if ( pref->type == PREF_STRING )
+  {
+    g_free((void *)pref->stashed_val.string);
+    pref->stashed_val.string = (gchar *) g_strdup(pref_value);
+    /* unstash - taken from preferences_util */
+    if (strcmp(*pref->varp.string, pref->stashed_val.string) != 0)
+    {
+      pref_changed = TRUE;
+      g_free((void *)*pref->varp.string);
+      *pref->varp.string = g_strdup(pref->stashed_val.string);
+    }
+  }
+
+  if ( pref_changed )
+  {
+    prefs_main_write();
+    prefs_apply_all();
+    prefs_to_capture_opts();
+  }
+
+  return TRUE;
+}
+
 gint
 column_prefs_add_custom(gint fmt, const gchar *title, const gchar *custom_field, gint custom_occurrence)
 {