--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/core/mouse.h	Tue Jan 21 12:42:33 2020 +0100
@@ -0,0 +1,42 @@
+/*
+ * mouse.h -- mouse definitions
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef MOLKO_MOUSE_H
+#define MOLKO_MOUSE_H
+
+/**
+ * \file mouse.h
+ * \brief Mouse definitions.
+ */
+
+/**
+ * \brief Buttons from mouse.
+ *
+ * This enumeration is used as both flags or constants. For example when the
+ * user press one button on the mouse it generates one constant event. On the
+ * other hand, while moving the mouse the user may have one or more buttons
+ * pressed, thus the OR'ed combination.
+ */
+enum mouse_button {
+	MOUSE_BUTTON_UNKNOWN    = 0,            /*!< No buttons pressed */
+	MOUSE_BUTTON_LEFT       = (1 << 0),     /*!< Left button pressed */
+	MOUSE_BUTTON_MIDDLE     = (1 << 1),     /*!< Middle button pressed */
+	MOUSE_BUTTON_RIGHT      = (1 << 2)      /*!< Right button pressed */
+};
+
+#endif /* !MOLKO_MOUSE_H */