Add our own activatable interface to EomWindow

Improves typesafety by explicitly passing the EomWindow
and allows us to extend the interface if necessary.

https://bugzilla.gnome.org/show_bug.cgi?id=626091

origin commit:
https://gitlab.gnome.org/GNOME/eog/commit/397a6a5

1 files changed, 87 insertions, 0 deletions

diff --git a/src/eom-window-activatable.c b/src/eom-window-activatable.c
new file mode 100644
index 0000000..9acc0ef
--- /dev/null
+++ b/src/eom-window-activatable.c
@@ -0,0 +1,87 @@
+/*
+ * eom-window-activatable.c
+ * This file is part of eom
+ *
+ * Author: Felix Riemann <[email protected]>
+ *
+ * Copyright (C) 2011 Felix Riemann
+ * 
+ * Base on code by:
+ * 	- Steve Frécinaux <[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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "eom-window-activatable.h"
+
+#include <glib-object.h>
+#include "eom-window.h"
+
+G_DEFINE_INTERFACE(EomWindowActivatable, eom_window_activatable, G_TYPE_OBJECT)
+
+void
+eom_window_activatable_default_init (EomWindowActivatableInterface *iface)
+{
+	static gboolean initialized = FALSE;
+
+	if (!initialized) {
+		/**
+		 * EomWindowActivatable:window:
+		 *
+		 * This is the #EomWindow this #EomWindowActivatable instance
+		 * should be attached to.
+		 */
+		g_object_interface_install_property (iface,
+				g_param_spec_object ("window", "Window",
+						     "The EomWindow this "
+						     "instance it attached to",
+						     EOM_TYPE_WINDOW,
+						     G_PARAM_READWRITE |
+						     G_PARAM_CONSTRUCT_ONLY |
+						     G_PARAM_STATIC_STRINGS));
+		initialized = TRUE;
+	}
+}
+
+void
+eom_window_activatable_activate (EomWindowActivatable *activatable)
+{
+	EomWindowActivatableInterface *iface;
+
+	g_return_if_fail (EOM_IS_WINDOW_ACTIVATABLE (activatable));
+
+	iface = EOM_WINDOW_ACTIVATABLE_GET_IFACE (activatable);
+
+	if (G_LIKELY (iface->activate != NULL))
+		iface->activate (activatable);
+}
+
+void
+eom_window_activatable_deactivate (EomWindowActivatable *activatable)
+{
+	EomWindowActivatableInterface *iface;
+
+	g_return_if_fail (EOM_IS_WINDOW_ACTIVATABLE (activatable));
+
+	iface = EOM_WINDOW_ACTIVATABLE_GET_IFACE (activatable);
+
+	if (G_LIKELY (iface->deactivate != NULL))
+		iface->deactivate (activatable);
+}
+