entry completion: Update popup visibility on manual complete

Currently, calling `gtk_entry_completion_complete()` does not adjust
the visbility of the popup used to show completion entries. This makes
it difficlt to dynamically populate the model based on what is being
entered into the completion's entry.

For example, if the model is being populated from a database, and no
matches have (yet) been added between typing a character and the 100ms
delay before completion is automatically triggered, the popup will not
be shown even after matches have been added.

This patch simply moves the related code from the private timeout method
to the public function and shuffles the position of some functions so as
to keep the compiler happy.

gtk/gtkentrycompletion.c

@@ -953,6 +953,39 @@ gtk_entry_completion_selection_changed (GtkTreeSelection *selection,
     }
 }
 
+static void
+gtk_entry_completion_popup (GtkEntryCompletion *completion)
+{
+  GtkText *text = gtk_entry_get_text_widget (GTK_ENTRY (completion->priv->entry));
+
+  if (gtk_widget_get_mapped (completion->priv->popup_window))
+    return;
+
+  if (!gtk_widget_get_mapped (GTK_WIDGET (text)))
+    return;
+
+  if (!gtk_widget_has_focus (GTK_WIDGET (text)))
+    return;
+
+  /* default on no match */
+  completion->priv->current_selected = -1;
+
+  gtk_widget_realize (completion->priv->popup_window);
+
+  _gtk_entry_completion_resize_popup (completion);
+
+  gtk_popover_popup (GTK_POPOVER (completion->priv->popup_window));
+}
+
+void
+_gtk_entry_completion_popdown (GtkEntryCompletion *completion)
+{
+  if (!gtk_widget_get_mapped (completion->priv->popup_window))
+    return;
+
+  gtk_popover_popdown (GTK_POPOVER (completion->priv->popup_window));
+}
+
 /* public API */
 
 /**
@@ -1158,23 +1191,44 @@ gtk_entry_completion_complete (GtkEntryCompletion *completion)
   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
   g_return_if_fail (GTK_IS_ENTRY (completion->priv->entry));
 
-  if (!completion->priv->filter_model)
-    return;
+  if (completion->priv->filter_model)
+    {
+      gint matches;
+      gint actions;
+      gboolean popup_single;
 
-  g_free (completion->priv->case_normalized_key);
+      g_free (completion->priv->case_normalized_key);
 
-  tmp = g_utf8_normalize (gtk_editable_get_text (GTK_EDITABLE (completion->priv->entry)),
-                          -1, G_NORMALIZE_ALL);
-  completion->priv->case_normalized_key = g_utf8_casefold (tmp, -1);
-  g_free (tmp);
+      tmp = g_utf8_normalize (gtk_editable_get_text (GTK_EDITABLE (completion->priv->entry)),
+                              -1, G_NORMALIZE_ALL);
+      completion->priv->case_normalized_key = g_utf8_casefold (tmp, -1);
+      g_free (tmp);
 
-  gtk_tree_model_filter_refilter (completion->priv->filter_model);
+      gtk_tree_model_filter_refilter (completion->priv->filter_model);
 
-  if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (completion->priv->filter_model), &iter))
-    g_signal_emit (completion, entry_completion_signals[NO_MATCHES], 0);
+      if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (completion->priv->filter_model), &iter))
+        g_signal_emit (completion, entry_completion_signals[NO_MATCHES], 0);
+
+      if (gtk_widget_get_visible (completion->priv->popup_window))
+        _gtk_entry_completion_resize_popup (completion);
+
+      matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
+      actions = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
+
+      g_object_get (completion, "popup-single-match", &popup_single, NULL);
+      if ((matches > (popup_single ? 0: 1)) || actions > 0)
+        {
+          if (gtk_widget_get_visible (completion->priv->popup_window))
+            _gtk_entry_completion_resize_popup (completion);
+          else
+            gtk_entry_completion_popup (completion);
+        }
+      else
+        _gtk_entry_completion_popdown (completion);
+    }
+  else if (gtk_widget_get_visible (completion->priv->popup_window))
+    _gtk_entry_completion_popdown (completion);
 
-  if (gtk_widget_get_visible (completion->priv->popup_window))
-    _gtk_entry_completion_resize_popup (completion);
 }
 
 static void
@@ -1404,39 +1458,6 @@ _gtk_entry_completion_resize_popup (GtkEntryCompletion *completion)
   gtk_native_check_resize (GTK_NATIVE (completion->priv->popup_window));
 }
 
-static void
-gtk_entry_completion_popup (GtkEntryCompletion *completion)
-{
-  GtkText *text = gtk_entry_get_text_widget (GTK_ENTRY (completion->priv->entry));
-
-  if (gtk_widget_get_mapped (completion->priv->popup_window))
-    return;
-
-  if (!gtk_widget_get_mapped (GTK_WIDGET (text)))
-    return;
-
-  if (!gtk_widget_has_focus (GTK_WIDGET (text)))
-    return;
-
-  /* default on no match */
-  completion->priv->current_selected = -1;
-
-  gtk_widget_realize (completion->priv->popup_window);
-
-  _gtk_entry_completion_resize_popup (completion);
-
-  gtk_popover_popup (GTK_POPOVER (completion->priv->popup_window));
-}
-
-void
-_gtk_entry_completion_popdown (GtkEntryCompletion *completion)
-{
-  if (!gtk_widget_get_mapped (completion->priv->popup_window))
-    return;
-
-  gtk_popover_popdown (GTK_POPOVER (completion->priv->popup_window));
-}
-
 static gboolean
 gtk_entry_completion_match_selected (GtkEntryCompletion *completion,
                                      GtkTreeModel       *model,
@@ -1888,31 +1909,8 @@ gtk_entry_completion_timeout (gpointer data)
       g_utf8_strlen (gtk_editable_get_text (GTK_EDITABLE (completion->priv->entry)), -1)
       >= completion->priv->minimum_key_length)
     {
-      gint matches;
-      gint actions;
-      GtkTreeSelection *s;
-      gboolean popup_single;
-
-      gtk_entry_completion_complete (completion);
-      matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
       gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view)));
-
-      s = gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view));
-
-      gtk_tree_selection_unselect_all (s);
-
-      actions = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
-
-      g_object_get (completion, "popup-single-match", &popup_single, NULL);
-      if ((matches > (popup_single ? 0: 1)) || actions > 0)
-        {
-          if (gtk_widget_get_visible (completion->priv->popup_window))
-            _gtk_entry_completion_resize_popup (completion);
-          else
-            gtk_entry_completion_popup (completion);
-        }
-      else
-        _gtk_entry_completion_popdown (completion);
+      gtk_entry_completion_complete (completion);
     }
   else if (gtk_widget_get_visible (completion->priv->popup_window))
     _gtk_entry_completion_popdown (completion);