[gnome-calendar] edit-dialog: implement moving events between sources

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

commit 9e17710052dfa2e748b28d6a150ffb2daf921f4f
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Jul 6 17:13:54 2016 -0300

    edit-dialog: implement moving events between sources
    
    After adding the button in the headerbar, it is natural to
    bring back the ability to move events between sources.
    
    This commit finally includes the usage of GcalManager:move_event_to_source
    function, which was implemented ages ago.

 src/gcal-edit-dialog.c |   41 +++++++++++++++++++++++++++++++----------
 1 files changed, 31 insertions(+), 10 deletions(-)
---
diff --git a/src/gcal-edit-dialog.c b/src/gcal-edit-dialog.c
index 186e5b4..81bf8b5 100644
--- a/src/gcal-edit-dialog.c
+++ b/src/gcal-edit-dialog.c
@@ -77,6 +77,7 @@ struct _GcalEditDialog
 
   /* new data holders */
   GcalEvent        *event;
+  ESource          *selected_source;
 
   /* flags */
   gboolean          format_24h;
@@ -191,13 +192,13 @@ on_calendar_selected (GSimpleAction *action,
                       GVariant      *value,
                       gpointer       user_data)
 {
-  GcalEditDialog *dialog;
+  GcalEditDialog *self;
   GList *list;
   GList *aux;
   gchar *uid;
 
-  dialog = GCAL_EDIT_DIALOG (user_data);
-  list = gcal_manager_get_sources (dialog->manager);
+  self = GCAL_EDIT_DIALOG (user_data);
+  list = gcal_manager_get_sources (self->manager);
 
   /* retrieve selected calendar uid */
   g_variant_get (value, "s", &uid);
@@ -217,11 +218,12 @@ on_calendar_selected (GSimpleAction *action,
         get_color_name_from_source (source, &color);
 
         pix = gcal_get_pixbuf_from_color (&color, 16);
-        gtk_image_set_from_pixbuf (GTK_IMAGE (dialog->source_image), pix);
+        gtk_image_set_from_pixbuf (GTK_IMAGE (self->source_image), pix);
         g_object_unref (pix);
 
-        gcal_event_set_source (dialog->event, source);
-        gtk_header_bar_set_subtitle (GTK_HEADER_BAR (dialog->titlebar),
+        self->selected_source = source;
+
+        gtk_header_bar_set_subtitle (GTK_HEADER_BAR (self->titlebar),
                                      e_source_get_display_name (source));
         break;
       }
@@ -589,6 +591,29 @@ gcal_edit_dialog_action_button_clicked (GtkWidget *widget,
       g_clear_pointer (&start_date, g_date_time_unref);
       g_clear_pointer (&end_date, g_date_time_unref);
 
+      /* Update the source if needed */
+      if (dialog->selected_source &&
+          gcal_event_get_source (dialog->event) != dialog->selected_source)
+        {
+          /*
+           * When we're creating the event, it has no source set, so we simply
+           * set the source. When editing the event, however, we're actually
+           * moving it from one source to another.
+           */
+          if (!gcal_event_get_source (dialog->event))
+            {
+              gcal_event_set_source (dialog->event, dialog->selected_source);
+            }
+          else
+            {
+              gcal_manager_move_event_to_source (dialog->manager,
+                                                 dialog->event,
+                                                 dialog->selected_source);
+            }
+        }
+
+      dialog->selected_source = NULL;
+
       /* Send the response */
       gtk_dialog_response (GTK_DIALOG (dialog),
                            dialog->event_is_new ? GCAL_RESPONSE_CREATE_EVENT : GCAL_RESPONSE_SAVE_EVENT);
@@ -955,10 +980,6 @@ gcal_edit_dialog_set_event_is_new (GcalEditDialog *dialog,
   dialog->event_is_new = event_is_new;
 
   gtk_widget_set_visible (dialog->delete_button, !event_is_new);
-
-  /* FIXME: implement moving events to other sources */
-  gtk_widget_set_sensitive (dialog->sources_button, event_is_new);
-  gtk_button_set_relief (GTK_BUTTON (dialog->sources_button), event_is_new ? GTK_RELIEF_NORMAL : 
GTK_RELIEF_NONE);
 }
 
 GcalEvent*