[gnome-calendar] edit-dialog: enable selecting source at event creation

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

commit dd17c451679909b4461a6b9a68132106eeda058b
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Dec 5 16:06:51 2014 -0200

    edit-dialog: enable selecting source at event creation
    
    When creating a new event, the user should be able to select in which source it'll be created in. This 
commit implements that.
    
    Moving an event to another source, however, is not allowed at the moment.

 src/gcal-edit-dialog.c |  126 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 126 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-edit-dialog.c b/src/gcal-edit-dialog.c
index f7d0ab0..0969c1b 100644
--- a/src/gcal-edit-dialog.c
+++ b/src/gcal-edit-dialog.c
@@ -43,6 +43,7 @@ typedef struct
   GtkWidget        *delete_button;
   GtkWidget        *done_button;
   GtkWidget        *cancel_button;
+  GtkWidget        *sources_button;
 
   GtkWidget        *summary_entry;
 
@@ -54,6 +55,10 @@ typedef struct
   GtkWidget        *location_entry;
   GtkWidget        *notes_text;
 
+  /* actions */
+  GSimpleAction      *action;
+  GSimpleActionGroup *action_group;
+
   /* new data holders */
   ESource          *source; /* weak reference */
   ECalComponent    *component;
@@ -63,6 +68,12 @@ typedef struct
   gboolean          setting_event;
 } GcalEditDialogPrivate;
 
+static void        fill_sources_menu                      (GcalEditDialog    *dialog);
+
+static void        on_calendar_selected                   (GtkWidget         *menu_item,
+                                                           GVariant          *value,
+                                                           gpointer           user_data);
+
 static void        update_date                            (GtkEntry          *entry,
                                                            gpointer           user_data);
 
@@ -98,6 +109,94 @@ static void        gcal_edit_dialog_all_day_changed       (GtkWidget         *wi
 G_DEFINE_TYPE_WITH_PRIVATE (GcalEditDialog, gcal_edit_dialog, GTK_TYPE_DIALOG)
 
 static void
+fill_sources_menu (GcalEditDialog *dialog)
+{
+  GcalEditDialogPrivate *priv;
+  GList *list;
+  GList *aux;
+  GMenu *menu;
+
+  priv = gcal_edit_dialog_get_instance_private (dialog);
+
+  if (priv->manager == NULL)
+    return;
+
+  list = gcal_manager_get_sources (priv->manager);
+  menu = g_menu_new ();
+
+  for (aux = list; aux != NULL; aux = aux->next)
+    {
+      ESource *source;
+      GMenuItem *item;
+      ESourceSelectable *extension;
+      GdkRGBA color;
+
+      source = E_SOURCE (aux->data);
+
+      /* retrieve color */
+      extension = E_SOURCE_SELECTABLE (e_source_get_extension (source, E_SOURCE_EXTENSION_CALENDAR));
+      gdk_rgba_parse (&color, e_source_selectable_get_color (E_SOURCE_SELECTABLE (extension)));
+
+      /* menu item */
+      item = g_menu_item_new (e_source_get_display_name (source), "edit.select_calendar");
+      g_menu_item_set_icon (item, G_ICON (gcal_get_pixbuf_from_color (&color, 12)));
+
+      /* set insensitive for read-only calendars */
+      if (! e_source_get_enabled (source)||
+          gcal_manager_is_client_writable (priv->manager, source))
+        {
+          g_menu_item_set_action_and_target_value (item, "edit.select_calendar", NULL);
+        }
+      else
+        {
+          g_menu_item_set_action_and_target_value (item, "edit.select_calendar",
+                                                   g_variant_new_string (e_source_dup_uid (source)));
+        }
+
+      g_menu_append_item (menu, item);
+    }
+
+  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (priv->sources_button), G_MENU_MODEL (menu));
+
+  g_list_free (list);
+}
+
+static void
+on_calendar_selected (GtkWidget *menu_item,
+                      GVariant  *value,
+                      gpointer   user_data)
+{
+  GcalEditDialogPrivate *priv;
+  GList *list;
+  GList *aux;
+  gchar *uid;
+
+  priv = gcal_edit_dialog_get_instance_private (GCAL_EDIT_DIALOG (user_data));
+  list = gcal_manager_get_sources (priv->manager);
+
+  /* retrieve selected calendar uid */
+  g_variant_get (value, "s", &uid);
+
+  /* search for any source with the given UID */
+  for (aux = list; aux != NULL; aux = aux->next)
+    {
+      ESource *source;
+      source = E_SOURCE (aux->data);
+
+      if (g_strcmp0 (e_source_get_uid (source), uid) == 0)
+      {
+        priv->source = source;
+        gtk_header_bar_set_subtitle (GTK_HEADER_BAR (priv->titlebar),
+                                     e_source_get_display_name (priv->source));
+        break;
+      }
+    }
+
+  g_free (uid);
+  g_list_free (list);
+}
+
+static void
 update_date (GtkEntry   *entry,
              gpointer    user_data)
 {
@@ -349,6 +448,7 @@ gcal_edit_dialog_class_init (GcalEditDialogClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, done_button);
   gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, cancel_button);
   gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, delete_button);
+  gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, sources_button);
   /* Entries */
   gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, summary_entry);
   gtk_widget_class_bind_template_child_private (widget_class, GcalEditDialog, start_time_entry);
@@ -395,6 +495,19 @@ gcal_edit_dialog_constructed (GObject* object)
   /* titlebar */
   gtk_window_set_titlebar (GTK_WINDOW (object), priv->titlebar);
 
+  /* actions */
+  priv->action_group = g_simple_action_group_new ();
+  gtk_widget_insert_action_group (GTK_WIDGET (object),
+                                  "edit",
+                                  G_ACTION_GROUP (priv->action_group));
+
+  priv->action = g_simple_action_new ("select_calendar", G_VARIANT_TYPE_STRING);
+  g_signal_connect (priv->action,
+                    "activate",
+                    G_CALLBACK (on_calendar_selected), object);
+
+  g_action_map_add_action (G_ACTION_MAP (priv->action_group), G_ACTION (priv->action));
+
   /* bind title & symmary */
   g_object_bind_property (priv->summary_entry,
                           "text",
@@ -498,6 +611,12 @@ gcal_edit_dialog_finalize (GObject *object)
   if (priv->component != NULL)
     g_object_unref (priv->component);
 
+  if (priv->action_group != NULL)
+    g_object_unref (priv->action_group);
+
+  if (priv->action != NULL)
+    g_object_unref (priv->action);
+
   G_OBJECT_CLASS (gcal_edit_dialog_parent_class)->finalize (object);
 }
 
@@ -647,6 +766,10 @@ 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);
+
+  /* FIXME: implement moving events to other sources */
+  gtk_widget_set_sensitive (GTK_WIDGET (priv->sources_button), event_is_new);
+  gtk_button_set_relief (GTK_BUTTON (priv->sources_button), event_is_new ? GTK_RELIEF_NORMAL : 
GTK_RELIEF_NONE);
 }
 
 void
@@ -798,6 +921,9 @@ gcal_edit_dialog_set_manager (GcalEditDialog *dialog,
   priv = gcal_edit_dialog_get_instance_private (dialog);
 
   priv->manager = manager;
+
+  /* sources menu */
+  fill_sources_menu (dialog);
 }
 
 ECalComponent*