[gnome-calendar] edit-dialog: hide Delete button when creating a new event

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 8f4d6be1bf1b108f6e7233075a3bbfe88628aa38
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Dec 5 00:41:34 2014 -0200

    edit-dialog: hide Delete button when creating a new event
    
    Because we don't want to delete an event that is not created

 src/gcal-edit-dialog.c |    1 +
 src/gcal-window.c      |    3 +++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-edit-dialog.c b/src/gcal-edit-dialog.c
index e437632..f7d0ab0 100644
--- a/src/gcal-edit-dialog.c
+++ b/src/gcal-edit-dialog.c
@@ -646,6 +646,7 @@ gcal_edit_dialog_set_event_is_new (GcalEditDialog *dialog,
 
   priv = gcal_edit_dialog_get_instance_private (dialog);
   priv->event_is_new = event_is_new;
+  gtk_widget_set_visible (GTK_WIDGET (priv->delete_button), !event_is_new);
 }
 
 void
diff --git a/src/gcal-window.c b/src/gcal-window.c
index b253766..f79bee3 100644
--- a/src/gcal-window.c
+++ b/src/gcal-window.c
@@ -713,6 +713,9 @@ event_activated (GcalView        *view,
     init_edit_dialog (GCAL_WINDOW (user_data));
 
   data = gcal_event_widget_get_data (event_widget);
+  gcal_edit_dialog_set_event_is_new (
+      GCAL_EDIT_DIALOG (priv->edit_dialog),
+      FALSE);
   gcal_edit_dialog_set_event_data (
       GCAL_EDIT_DIALOG (priv->edit_dialog),
       data);