Add StatusNotifier support to the Notification Area applet

The StatusNotifier part of the implementation is based off
gnome-panel's status-notifier applet.

1 files changed, 91 insertions, 0 deletions

diff --git a/applets/notification_area/na-item.c b/applets/notification_area/na-item.c
new file mode 100644
index 00000000..497e4102
--- /dev/null
+++ b/applets/notification_area/na-item.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ * Copyright (C) 2017 Colomban Wendling <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "na-item.h"
+
+G_DEFINE_INTERFACE_WITH_CODE (NaItem, na_item, GTK_TYPE_WIDGET,
+                              g_type_interface_add_prerequisite (g_define_type_id,
+                                                                 GTK_TYPE_ORIENTABLE);)
+
+static gboolean
+na_item_draw_on_parent_default (NaItem     *item,
+                                GtkWidget  *parent,
+                                cairo_t    *parent_cr)
+{
+  return FALSE;
+}
+
+static void
+na_item_default_init (NaItemInterface *iface)
+{
+  iface->draw_on_parent = na_item_draw_on_parent_default;
+}
+
+const gchar *
+na_item_get_id (NaItem *item)
+{
+  NaItemInterface *iface;
+
+  g_return_val_if_fail (NA_IS_ITEM (item), NULL);
+
+  iface = NA_ITEM_GET_IFACE (item);
+  g_return_val_if_fail (iface->get_id != NULL, NULL);
+
+  return iface->get_id (item);
+}
+
+NaItemCategory
+na_item_get_category (NaItem *item)
+{
+  NaItemInterface *iface;
+
+  g_return_val_if_fail (NA_IS_ITEM (item),
+                        NA_ITEM_CATEGORY_APPLICATION_STATUS);
+
+  iface = NA_ITEM_GET_IFACE (item);
+  g_return_val_if_fail (iface->get_category != NULL,
+                        NA_ITEM_CATEGORY_APPLICATION_STATUS);
+
+  return iface->get_category (item);
+}
+
+/*
+ * Fairly ugly hack because system-tray/NaTrayChild uses a weird hack for
+ * drawing itself.  I'm not sure it's still needed with the current GTK3
+ * drawing where not all widgets have an own window, but well.
+ *
+ * Should return %TRUE if it handled itself, or %FALSE if the parent should
+ * draw normally.  Default is to draw normally.
+ */
+gboolean
+na_item_draw_on_parent (NaItem    *item,
+                        GtkWidget *parent,
+                        cairo_t   *parent_cr)
+{
+  NaItemInterface *iface;
+
+  g_return_val_if_fail (NA_IS_ITEM (item), FALSE);
+  g_return_val_if_fail (GTK_IS_WIDGET (parent), FALSE);
+
+  iface = NA_ITEM_GET_IFACE (item);
+  g_return_val_if_fail (iface->draw_on_parent != NULL, FALSE);
+
+  return iface->draw_on_parent (item, parent, parent_cr);
+}