namespace Gst.Interfaces {

	using System;
	using System.Runtime.InteropServices;
	using System.Reflection;
	using GLib;
	using Gst;
	using Gst.Interfaces;

	public static class NavigationEvent {
		[DllImport("gstinterfaces-0.10.dll")]
		static extern int gst_navigation_event_get_type(IntPtr evnt);

		public static Gst.Interfaces.NavigationEventType EventGetType(Gst.Event evnt) {
			int raw_ret = gst_navigation_event_get_type(evnt == null ? IntPtr.Zero : evnt.Handle);
			Gst.Interfaces.NavigationEventType ret = (Gst.Interfaces.NavigationEventType) raw_ret;
			return ret;
		}

		[DllImport("gstinterfaces-0.10.dll")]
		static extern bool gst_navigation_event_parse_key_event (IntPtr evnt, out IntPtr key);

		public static bool ParseKeyEvent (Gst.Event evnt, out string key) {
			IntPtr raw_key;
			bool ret = gst_navigation_event_parse_key_event (evnt.Handle, out raw_key);

			key = GLib.Marshaller.Utf8PtrToString (raw_key);

			return ret;
		}

		[DllImport("gstinterfaces-0.10.dll")]
		static extern bool gst_navigation_event_parse_mouse_button_event (IntPtr evnt, out int button, out double x, out double y);

		public static bool ParseMouseButtonEvent (Gst.Event evnt, out int button, out double x, out double y) {
			return gst_navigation_event_parse_mouse_button_event (evnt.Handle, out button, out x, out y);
		}

		[DllImport("gstinterfaces-0.10.dll")]
		static extern bool gst_navigation_event_parse_mouse_move_event (IntPtr evnt, out double x, out double y);

		public static bool ParseMouseMoveEvent (Gst.Event evnt, out double x, out double y) {
			return gst_navigation_event_parse_mouse_move_event (evnt.Handle, out x, out y);
		}

		[DllImport("gstinterfaces-0.10.dll")]
		static extern bool gst_navigation_event_parse_command (IntPtr evnt, out int command);

		public static bool ParseCommand (Gst.Event evnt, out Gst.Interfaces.NavigationCommand command) {
			int raw_command;
			bool ret = gst_navigation_event_parse_command (evnt.Handle, out raw_command);
			
			command = (Gst.Interfaces.NavigationCommand) raw_command;

			return ret;
		}

	}
}