[gnome-control-center] region: Make it possible to add an input source by activating its row

[Rui Matos <rtcm src gnome org>]

commit f28e06a4b33d410e90d559ed58c1dde946f33e2a
Author: Rui Matos <tiagomatos gmail com>
Date:   Fri Jul 4 18:10:17 2014 +0200

    region: Make it possible to add an input source by activating its row
    
    Selecting and pressing the Add button continues to work but this
    should streamline the the input chooser dialog for mouse users by
    making it possible to add by double clicking a row.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732720

 panels/region/cc-input-chooser.c |   23 ++++++++++++++++++-----
 1 files changed, 18 insertions(+), 5 deletions(-)
---
diff --git a/panels/region/cc-input-chooser.c b/panels/region/cc-input-chooser.c
index f54f391..bb620f8 100644
--- a/panels/region/cc-input-chooser.c
+++ b/panels/region/cc-input-chooser.c
@@ -393,6 +393,7 @@ show_input_sources_for_locale (GtkWidget   *chooser,
   gtk_list_box_set_header_func (GTK_LIST_BOX (priv->list), update_header, NULL, NULL);
   gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->list));
   gtk_list_box_set_selection_mode (GTK_LIST_BOX (priv->list), GTK_SELECTION_SINGLE);
+  gtk_list_box_set_activate_on_single_click (GTK_LIST_BOX (priv->list), FALSE);
 
   if (gtk_widget_is_visible (priv->filter_entry) &&
       !gtk_widget_is_focus (priv->filter_entry))
@@ -448,6 +449,7 @@ show_locale_rows (GtkWidget *chooser)
   gtk_list_box_set_header_func (GTK_LIST_BOX (priv->list), update_header, NULL, NULL);
   gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->list));
   gtk_list_box_set_selection_mode (GTK_LIST_BOX (priv->list), GTK_SELECTION_NONE);
+  gtk_list_box_set_activate_on_single_click (GTK_LIST_BOX (priv->list), TRUE);
 
   if (gtk_widget_is_visible (priv->filter_entry) &&
       !gtk_widget_is_focus (priv->filter_entry))
@@ -627,6 +629,7 @@ show_filter_widgets (GtkWidget *chooser)
                                 update_header_filter, NULL, NULL);
   gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->list));
   gtk_list_box_set_selection_mode (GTK_LIST_BOX (priv->list), GTK_SELECTION_SINGLE);
+  gtk_list_box_set_activate_on_single_click (GTK_LIST_BOX (priv->list), FALSE);
 
   if (gtk_widget_is_visible (priv->filter_entry) &&
       !gtk_widget_is_focus (priv->filter_entry))
@@ -745,7 +748,9 @@ row_activated (GtkListBox *box,
   data = g_object_get_data (G_OBJECT (row), "name");
   if (data)
     {
-      /* It's an input source, we just want to select it */
+      gtk_dialog_response (GTK_DIALOG (chooser),
+                           gtk_dialog_get_response_for_widget (GTK_DIALOG (chooser),
+                                                               priv->add_button));
       return;
     }
 
@@ -758,13 +763,21 @@ row_activated (GtkListBox *box,
 }
 
 static void
-row_selected (GtkListBox *box,
-              GtkListBoxRow *row,
-              GtkWidget  *chooser)
+selected_rows_changed (GtkListBox *box,
+                       GtkWidget  *chooser)
 {
   CcInputChooserPrivate *priv = GET_PRIVATE (chooser);
+  GtkListBoxRow *row;
+  gpointer data;
 
+  row = gtk_list_box_get_selected_row (box);
   gtk_widget_set_sensitive (priv->add_button, row != NULL);
+  if (!row)
+    return;
+
+  data = g_object_get_data (G_OBJECT (row), "back");
+  if (data)
+    show_locale_rows (chooser);
 }
 
 static void
@@ -1136,7 +1149,7 @@ cc_input_chooser_new (GtkWindow    *main_window,
   gtk_list_box_set_filter_func (GTK_LIST_BOX (priv->list), list_filter, chooser, NULL);
   gtk_list_box_set_sort_func (GTK_LIST_BOX (priv->list), (GtkListBoxSortFunc)list_sort, chooser, NULL);
   g_signal_connect (priv->list, "row-activated", G_CALLBACK (row_activated), chooser);
-  g_signal_connect (priv->list, "row-selected", G_CALLBACK (row_selected), chooser);
+  g_signal_connect (priv->list, "selected-rows-changed", G_CALLBACK (selected_rows_changed), chooser);
 
   g_signal_connect_swapped (priv->filter_entry, "search-changed", G_CALLBACK (filter_changed), chooser);