[gnome-builder] GbPreferencesWindow: hide sections with no search matches

[Christian Hergert <chergert src gnome org>]

commit 8dbdae5575003152e591bfbe2749c54799ba1528
Author: Christian Hergert <christian hergert me>
Date:   Fri Dec 12 03:58:29 2014 -0800

    GbPreferencesWindow: hide sections with no search matches

 src/preferences/gb-preferences-page.c   |    8 ++++++--
 src/preferences/gb-preferences-page.h   |    2 +-
 src/preferences/gb-preferences-window.c |    5 ++++-
 3 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/src/preferences/gb-preferences-page.c b/src/preferences/gb-preferences-page.c
index 52e6253..dee8693 100644
--- a/src/preferences/gb-preferences-page.c
+++ b/src/preferences/gb-preferences-page.c
@@ -48,7 +48,7 @@ gb_preferences_page_match (const gchar *needle,
   return !!strstr (haystack, needle);
 }
 
-void
+guint
 gb_preferences_page_set_keywords (GbPreferencesPage   *page,
                                   const gchar * const *keywords)
 {
@@ -57,6 +57,7 @@ gb_preferences_page_set_keywords (GbPreferencesPage   *page,
   gpointer value;
   gchar **needle;
   gsize size;
+  guint count = 0;
   guint i;
 
   g_return_if_fail (GB_IS_PREFERENCES_PAGE (page));
@@ -64,7 +65,7 @@ gb_preferences_page_set_keywords (GbPreferencesPage   *page,
   if (!keywords || (g_strv_length ((gchar **)keywords) == 0))
     {
       g_hash_table_foreach (page->priv->widgets, (GHFunc)gtk_widget_show, NULL);
-      return;
+      return G_MAXUINT;
     }
 
   size = g_strv_length ((gchar **)keywords) + 1;
@@ -88,6 +89,7 @@ gb_preferences_page_set_keywords (GbPreferencesPage   *page,
         {
           if (gb_preferences_page_match (needle [i], haystack))
             {
+              count++;
               visible = TRUE;
               break;
             }
@@ -97,6 +99,8 @@ gb_preferences_page_set_keywords (GbPreferencesPage   *page,
     }
 
   g_strfreev (needle);
+
+  return count;
 }
 
 void
diff --git a/src/preferences/gb-preferences-page.h b/src/preferences/gb-preferences-page.h
index 35a9ef7..e475859 100644
--- a/src/preferences/gb-preferences-page.h
+++ b/src/preferences/gb-preferences-page.h
@@ -49,7 +49,7 @@ struct _GbPreferencesPageClass
 };
 
 GType gb_preferences_page_get_type                (void);
-void  gb_preferences_page_set_keywords            (GbPreferencesPage   *page,
+guint gb_preferences_page_set_keywords            (GbPreferencesPage   *page,
                                                    const gchar * const *keywords);
 void  gb_preferences_page_set_keywords_for_widget (GbPreferencesPage   *page,
                                                    const gchar         *keywords,
diff --git a/src/preferences/gb-preferences-window.c b/src/preferences/gb-preferences-window.c
index 9008114..35d4427 100644
--- a/src/preferences/gb-preferences-window.c
+++ b/src/preferences/gb-preferences-window.c
@@ -107,7 +107,10 @@ gb_preferences_window_search_changed (GbPreferencesWindow *window,
     {
       GbPreferencesPage *page = GB_PREFERENCES_PAGE (iter->data);
 
-      gb_preferences_page_set_keywords (page, (const gchar * const *)keywords);
+      if (0 == gb_preferences_page_set_keywords (page, (const gchar * const *)keywords))
+        gtk_widget_set_visible (GTK_WIDGET (page), FALSE);
+      else
+        gtk_widget_set_visible (GTK_WIDGET (page), TRUE);
     }
 
   g_list_free (pages);