[gtksourceview] Completion: use a new model for each population

[SÃbastien Wilmet <swilmet src gnome org>]

commit aee2e81f6c96f67fc2bec42dbab73c3b60b5248c
Author: SÃbastien Wilmet <swilmet gnome org>
Date:   Sun Jan 20 21:37:54 2013 +0100

    Completion: use a new model for each population
    
    At the beginning of a population, we remove the model from the TreeView,
    and we destroy it. A new model is created, which is set to the TreeView
    only when the population is finished.
    
    When the population is finished, we must also show the completion
    window, which is normally done in on_row_inserted_cb(), but the
    "row-inserted" signals are not emitted.

 gtksourceview/gtksourcecompletion.c |   34 ++++++++++++++++++++++++++++++++++
 1 files changed, 34 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcecompletion.c b/gtksourceview/gtksourcecompletion.c
index aa846a7..0571f51 100644
--- a/gtksourceview/gtksourcecompletion.c
+++ b/gtksourceview/gtksourcecompletion.c
@@ -3154,6 +3154,14 @@ update_completion (GtkSourceCompletion        *completion,
 		completion->priv->select_on_show &&
 		(!get_selected_proposal (completion, NULL, NULL, NULL) || completion->priv->select_first);
 
+	/* Create a new CompletionModel */
+	gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view_proposals), NULL);
+	g_object_unref (completion->priv->model_proposals);
+	completion->priv->model_proposals = gtk_source_completion_model_new ();
+
+	gtk_source_completion_model_set_show_headers (completion->priv->model_proposals,
+						      completion->priv->show_headers);
+
 	gtk_source_completion_model_begin_populate (completion->priv->model_proposals,
 						    completion->priv->active_providers);
 
@@ -3192,8 +3200,34 @@ populating_done (GtkSourceCompletion        *completion,
 	}
 	else
 	{
+		gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view_proposals),
+					 GTK_TREE_MODEL (completion->priv->model_proposals));
+
 		update_selection_label (completion);
 
+		if (!gtk_widget_get_visible (completion->priv->window))
+		{
+			if (!completion->priv->remember_info_visibility)
+			{
+				completion->priv->info_visible = FALSE;
+			}
+
+			gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (completion->priv->info_button),
+						      completion->priv->info_visible);
+
+			DEBUG({
+				g_print ("Emitting show\n");
+			});
+
+			g_signal_emit (completion, signals[SHOW], 0);
+		}
+		else
+		{
+			DEBUG({
+				g_print ("Already visible\n");
+			});
+		}
+
 		if (completion->priv->select_on_show)
 		{
 			/* CHECK: does this actually work? */