Added support to obtain properties of the event

Added very initial support to handle obtention of the modified properties
of the edited event. There's still some kind of Model implementation to keep
track of the changes made by the user.

src/gcal-edit-dialog.c

@@ -108,6 +108,8 @@ gcal_edit_dialog_constructed (GObject* object)
   GcalEditDialogPrivate *priv;
   GtkWidget *content_area;
   GtkWidget *child;
+
+  GtkSizeGroup *size_group;
   GtkWidget *action_area;
   GtkWidget *button;
 
@@ -244,10 +246,12 @@ gcal_edit_dialog_constructed (GObject* object)
   gtk_widget_show_all (content_area);
 
   /* action area, buttons */
+  size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
   action_area = gtk_dialog_get_action_area (GTK_DIALOG (object));
   gtk_box_set_spacing (GTK_BOX (action_area), 6);
 
   button = gtk_button_new_from_stock (GTK_STOCK_CANCEL);
+  gtk_size_group_add_widget (size_group, button);
   gtk_widget_set_can_default (button, TRUE);
   g_object_set_data (G_OBJECT (button),
                      "response",
@@ -262,6 +266,7 @@ gcal_edit_dialog_constructed (GObject* object)
                                       TRUE);
 
   priv->delete_button = gtk_button_new ();
+  gtk_size_group_add_widget (size_group, priv->delete_button);
   gtk_container_add (
       GTK_CONTAINER (priv->delete_button),
       gtk_image_new_from_icon_name ("user-trash-symbolic",
@@ -281,6 +286,7 @@ gcal_edit_dialog_constructed (GObject* object)
 
   /* done button */
   button = gtk_button_new_with_label (_("Done"));
+  gtk_size_group_add_widget (size_group, button);
   gtk_widget_set_can_default (button, TRUE);
   g_object_set_data (G_OBJECT (button),
                      "response",
@@ -294,6 +300,9 @@ gcal_edit_dialog_constructed (GObject* object)
       "suggested-action");
   gtk_box_pack_end (GTK_BOX (action_area), button, TRUE, TRUE, 0);
 
+  g_object_unref (size_group);
+  g_debug ("Added size_group");
+
   gtk_widget_show_all (action_area);
 
   gtk_widget_pop_composite_child ();
@@ -611,9 +620,10 @@ gcal_edit_dialog_set_event (GcalEditDialog *dialog,
     g_free (priv->event_uid);
   priv->event_uid = g_strdup (event_uid);
 
-  /* Load event data */
+  /* Clear event data */
   gcal_edit_dialog_clear_data (dialog);
 
+  /* Load new event data */
   /* summary */
   text = gcal_manager_get_event_summary (priv->manager,
                                          priv->source_uid,
@@ -791,6 +801,24 @@ gcal_edit_dialog_set_manager (GcalEditDialog *dialog,
   gtk_widget_show_all (GTK_WIDGET (menu));
 }
 
+const gchar*
+gcal_edit_dialog_peek_source_uid (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+
+  priv = dialog->priv;
+  return priv->source_uid;
+}
+
+const gchar*
+gcal_edit_dialog_peek_event_uid (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+
+  priv = dialog->priv;
+  return priv->event_uid;
+}
+
 gchar*
 gcal_edit_dialog_get_event_uuid (GcalEditDialog *dialog)
 {
@@ -805,3 +833,56 @@ gcal_edit_dialog_get_event_uuid (GcalEditDialog *dialog)
     }
   return g_strdup_printf ("%s:%s", priv->source_uid, priv->event_uid);
 }
+
+GList*
+gcal_edit_dialog_get_modified_properties (GcalEditDialog *dialog)
+{
+  /* FIXME: Implement some kind of backend/model here */
+  GList *res;
+
+  /* FIXME: Instead of always add SUMMARY check if was modified
+   by checking against some kind of model */
+  res = NULL;
+  res = g_list_append (res, GINT_TO_POINTER (EVENT_SUMMARY));
+  /* res = g_list_append (res, GINT_TO_POINTER (EVENT_START_DATE)); */
+  res = g_list_append (res, GINT_TO_POINTER (EVENT_LOCATION));
+  res = g_list_append (res, GINT_TO_POINTER (EVENT_DESCRIPTION));
+  return res;
+}
+
+const gchar*
+gcal_edit_dialog_peek_summary (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+
+  priv = dialog->priv;
+
+  return gtk_entry_get_text (GTK_ENTRY (priv->summary_entry));
+}
+
+const gchar*
+gcal_edit_dialog_peek_location (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+
+  priv = dialog->priv;
+
+  return gtk_entry_get_text (GTK_ENTRY (priv->location_entry));
+}
+
+gchar*
+gcal_edit_dialog_get_event_description (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+  GtkTextBuffer *buffer;
+  GtkTextIter start_iter;
+  GtkTextIter end_iter;
+  gchar *desc;
+
+  priv = dialog->priv;
+  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->notes_text));
+  gtk_text_buffer_get_start_iter (buffer, &start_iter);
+  gtk_text_buffer_get_end_iter (buffer, &end_iter);
+  desc = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
+  return desc;
+}