/*
 * Virt Viewer: A virtual machine console viewer
 *
 * Copyright (C) 2007-2009 Red Hat,
 * Copyright (C) 2009 Daniel P. Berrange
 * Copyright (C) 2010 Marc-André Lureau
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

#include "virt-viewer-auth.h"
#include "virt-viewer-session-vnc.h"
#include "virt-viewer-display-vnc.h"

#include <glib/gi18n.h>

G_DEFINE_TYPE(VirtViewerSessionVnc, virt_viewer_session_vnc, VIRT_VIEWER_TYPE_SESSION)

struct _VirtViewerSessionVncPrivate {
	/* XXX we should really just have a VncConnection */
	VncDisplay *vnc;
};

#define VIRT_VIEWER_SESSION_VNC_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), VIRT_VIEWER_TYPE_SESSION_VNC, VirtViewerSessionVncPrivate))

static void virt_viewer_session_vnc_close(VirtViewerSession* session);
static gboolean virt_viewer_session_vnc_open_fd(VirtViewerSession* session, int fd);
static gboolean virt_viewer_session_vnc_open_host(VirtViewerSession* session, char *host, char *port);
static gboolean virt_viewer_session_vnc_channel_open_fd(VirtViewerSession* session,
							VirtViewerSessionChannel* channel, int fd);


static void
virt_viewer_session_vnc_finalize(GObject *obj)
{
	VirtViewerSessionVnc *vnc = VIRT_VIEWER_SESSION_VNC(obj);

	if (vnc->priv->vnc) {
		vnc_display_close(vnc->priv->vnc);
		g_object_unref(vnc->priv->vnc);
	}

	G_OBJECT_CLASS(virt_viewer_session_vnc_parent_class)->finalize(obj);
}


static void
virt_viewer_session_vnc_class_init(VirtViewerSessionVncClass *klass)
{
	VirtViewerSessionClass *dclass = VIRT_VIEWER_SESSION_CLASS(klass);
	GObjectClass *oclass = G_OBJECT_CLASS(klass);

	oclass->finalize = virt_viewer_session_vnc_finalize;

	dclass->close = virt_viewer_session_vnc_close;
	dclass->open_fd = virt_viewer_session_vnc_open_fd;
	dclass->open_host = virt_viewer_session_vnc_open_host;
	dclass->channel_open_fd = virt_viewer_session_vnc_channel_open_fd;

	g_type_class_add_private(oclass, sizeof(VirtViewerSessionVncPrivate));
}

static void
virt_viewer_session_vnc_init(VirtViewerSessionVnc *self G_GNUC_UNUSED)
{
	self->priv = VIRT_VIEWER_SESSION_VNC_GET_PRIVATE(self);
}

static void
virt_viewer_session_vnc_connected(VncDisplay *vnc G_GNUC_UNUSED,
				  VirtViewerSessionVnc *session)
{
	GtkWidget *display = virt_viewer_display_vnc_new(session->priv->vnc);
	g_signal_emit_by_name(session, "session-connected");
        virt_viewer_display_set_show_hint(VIRT_VIEWER_DISPLAY(display),
                                          VIRT_VIEWER_DISPLAY_SHOW_HINT_READY);
	virt_viewer_session_add_display(VIRT_VIEWER_SESSION(session),
					VIRT_VIEWER_DISPLAY(display));
}

static void
virt_viewer_session_vnc_disconnected(VncDisplay *vnc G_GNUC_UNUSED,
				     VirtViewerSessionVnc *session)
{
	g_signal_emit_by_name(session, "session-disconnected");
        /* TODO perhaps? */
        /* virt_viewer_display_set_show_hint(VIRT_VIEWER_DISPLAY(session->priv->vnc), */
        /*                                   VIRT_VIEWER_DISPLAY_SHOW_HINT_HIDE); */
}

static void
virt_viewer_session_vnc_initialized(VncDisplay *vnc G_GNUC_UNUSED,
				    VirtViewerSessionVnc *session)
{
	g_signal_emit_by_name(session, "session-initialized");
}

static void
virt_viewer_session_vnc_cut_text(VncDisplay *vnc G_GNUC_UNUSED,
				 const char *text,
				 VirtViewerSession *session)
{
	g_signal_emit_by_name(session, "session-cut-text", text);
}

static void
virt_viewer_session_vnc_bell(VncDisplay *vnc G_GNUC_UNUSED,
			     VirtViewerSession *session)
{
	g_signal_emit_by_name(session, "session-bell");
}

static void
virt_viewer_session_vnc_auth_unsupported(VncDisplay *vnc G_GNUC_UNUSED,
					 unsigned int authType,
					 VirtViewerSession *session)
{
	char *msg = g_strdup_printf(_("Unsupported authentication type %d"),
				    authType);
	g_signal_emit_by_name(session, "session-auth-failed", msg);
	g_free(msg);
}

static void
virt_viewer_session_vnc_auth_failure(VncDisplay *vnc G_GNUC_UNUSED,
				     const char *reason,
				     VirtViewerSession *session)
{

	g_signal_emit_by_name(session, "session-auth-refused", reason);
}



static gboolean
virt_viewer_session_vnc_open_fd(VirtViewerSession* session,
				int fd)
{
	VirtViewerSessionVnc *self = VIRT_VIEWER_SESSION_VNC(session);

	g_return_val_if_fail(self != NULL, FALSE);
	g_return_val_if_fail(self->priv->vnc != NULL, FALSE);

	return vnc_display_open_fd(self->priv->vnc, fd);
}

static gboolean
virt_viewer_session_vnc_channel_open_fd(VirtViewerSession* session G_GNUC_UNUSED,
					VirtViewerSessionChannel* channel G_GNUC_UNUSED,
					int fd G_GNUC_UNUSED)
{
	g_warning("channel_open_fd is not supported by VNC");
	return FALSE;
}

static gboolean
virt_viewer_session_vnc_open_host(VirtViewerSession* session,
				  char *host,
				  char *port)
{
	VirtViewerSessionVnc *self = VIRT_VIEWER_SESSION_VNC(session);

	g_return_val_if_fail(self != NULL, FALSE);
	g_return_val_if_fail(self->priv->vnc != NULL, FALSE);

	return vnc_display_open_host(self->priv->vnc, host, port);
}

static void
virt_viewer_session_vnc_close(VirtViewerSession* session)
{
	VirtViewerSessionVnc *self = VIRT_VIEWER_SESSION_VNC(session);

	g_return_if_fail(self != NULL);

	if (self->priv->vnc != NULL) {
		virt_viewer_session_clear_displays(session);
		vnc_display_close(self->priv->vnc);
		g_object_unref(self->priv->vnc);
	}

	self->priv->vnc = VNC_DISPLAY(vnc_display_new());

	g_signal_connect(self->priv->vnc, "vnc-connected",
			 G_CALLBACK(virt_viewer_session_vnc_connected), session);
	g_signal_connect(self->priv->vnc, "vnc-initialized",
			 G_CALLBACK(virt_viewer_session_vnc_initialized), session);
	g_signal_connect(self->priv->vnc, "vnc-disconnected",
			 G_CALLBACK(virt_viewer_session_vnc_disconnected), session);

	g_signal_connect(self->priv->vnc, "vnc-bell",
			 G_CALLBACK(virt_viewer_session_vnc_bell), session);
	g_signal_connect(self->priv->vnc, "vnc-auth-failure",
			 G_CALLBACK(virt_viewer_session_vnc_auth_failure), session);
	g_signal_connect(self->priv->vnc, "vnc-auth-unsupported",
			 G_CALLBACK(virt_viewer_session_vnc_auth_unsupported), session);
	g_signal_connect(self->priv->vnc, "vnc-server-cut-text",
			 G_CALLBACK(virt_viewer_session_vnc_cut_text), session);

	g_signal_connect(self->priv->vnc, "vnc-auth-credential",
			 G_CALLBACK(virt_viewer_auth_vnc_credentials), NULL);

 }

VirtViewerSession *
virt_viewer_session_vnc_new(void)
{
	VirtViewerSessionVnc *session;

	session = g_object_new(VIRT_VIEWER_TYPE_SESSION_VNC, NULL);

	session->priv->vnc = VNC_DISPLAY(vnc_display_new());

	g_signal_connect(session->priv->vnc, "vnc-connected",
			 G_CALLBACK(virt_viewer_session_vnc_connected), session);
	g_signal_connect(session->priv->vnc, "vnc-initialized",
			 G_CALLBACK(virt_viewer_session_vnc_initialized), session);
	g_signal_connect(session->priv->vnc, "vnc-disconnected",
			 G_CALLBACK(virt_viewer_session_vnc_disconnected), session);

	g_signal_connect(session->priv->vnc, "vnc-bell",
			 G_CALLBACK(virt_viewer_session_vnc_bell), session);
	g_signal_connect(session->priv->vnc, "vnc-auth-failure",
			 G_CALLBACK(virt_viewer_session_vnc_auth_failure), session);
	g_signal_connect(session->priv->vnc, "vnc-auth-unsupported",
			 G_CALLBACK(virt_viewer_session_vnc_auth_unsupported), session);
	g_signal_connect(session->priv->vnc, "vnc-server-cut-text",
			 G_CALLBACK(virt_viewer_session_vnc_cut_text), session);

	g_signal_connect(session->priv->vnc, "vnc-auth-credential",
			 G_CALLBACK(virt_viewer_auth_vnc_credentials), NULL);

	return VIRT_VIEWER_SESSION(session);
}




/*
 * Local variables:
 *  c-indent-level: 8
 *  c-basic-offset: 8
 *  tab-width: 8
 * End:
 */