[epiphany/gnome-3-36] Limit number of entries show in url drop down

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 0bfff82556e584505c9852d8923c7e38a4bbf2a0
Author: Jan-Michael Brummer <jan brummer tabos org>
Date:   Sat Feb 29 11:11:50 2020 +0000

    Limit number of entries show in url drop down
    
    Set a limit of 25 for history / bookmark entries in order to improve
    speed of url drop down. Open tabs and search engines are not limited.
    
    Fixes: https://gitlab.gnome.org/GNOME/epiphany/issues/1096
    
    
    (cherry picked from commit 8e3e2886e903ec565bf7fff3f35d6035ea23a7a4)

 src/ephy-suggestion-model.c | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)
---
diff --git a/src/ephy-suggestion-model.c b/src/ephy-suggestion-model.c
index 9e5fdfc58..97965a01a 100644
--- a/src/ephy-suggestion-model.c
+++ b/src/ephy-suggestion-model.c
@@ -36,6 +36,7 @@ struct _EphySuggestionModel {
   GSequence *urls;
   GSequence *items;
   GCancellable *icon_cancellable;
+  guint num_custom_entries;
 };
 
 enum {
@@ -247,6 +248,20 @@ load_favicon (EphySuggestionModel *model,
                                        suggestion);
 }
 
+static gboolean
+append_suggestion (EphySuggestionModel *self,
+                   EphySuggestion      *suggestion)
+{
+  if (self->num_custom_entries < 25) {
+    g_sequence_append (self->items, suggestion);
+    self->num_custom_entries++;
+
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
 static guint
 add_bookmarks (EphySuggestionModel *self,
                const char          *query)
@@ -286,9 +301,10 @@ add_bookmarks (EphySuggestionModel *self,
       load_favicon (self, suggestion, url);
       ephy_suggestion_set_secondary_icon (suggestion, "starred-symbolic");
 
-      new_urls = g_list_prepend (new_urls, g_strdup (url));
-      g_sequence_append (self->items, suggestion);
-      added++;
+      if (append_suggestion (self, suggestion)) {
+        new_urls = g_list_prepend (new_urls, g_strdup (url));
+        added++;
+      }
     }
   }
 
@@ -326,8 +342,8 @@ add_history (EphySuggestionModel *self,
     suggestion = ephy_suggestion_new (markup, title, url->url);
     load_favicon (self, suggestion, url->url);
 
-    g_sequence_append (self->items, suggestion);
-    added++;
+    if (append_suggestion (self, suggestion))
+      added++;
   }
 
   return added;
@@ -390,6 +406,7 @@ add_tabs (EphySuggestionModel *self,
   shell = ephy_embed_shell_get_default ();
   application = G_APPLICATION (shell);
   window = EPHY_WINDOW (gtk_application_get_active_window (GTK_APPLICATION (application)));
+  self->num_custom_entries = 0;
 
   if (!window)
     return 0;