/*
* Virt Viewer: A virtual machine console viewer
*
* Copyright (C) 2007-2012 Red Hat, Inc.
* Copyright (C) 2009-2012 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 <config.h>
#include <gvnc.h>
#include "virt-viewer-auth.h"
#include "virt-viewer-display-vnc.h"
#include "virt-viewer-util.h"
#include <glib/gi18n.h>
#ifndef VNC_CHECK_VERSION
# define VNC_CHECK_VERSION(a, b, c) 0
#endif
#if VNC_CHECK_VERSION(1, 2, 0)
# define HAVE_VNC_REMOTE_RESIZE
#endif
struct _VirtViewerDisplayVnc {
VirtViewerDisplay parent;
VncDisplay *vnc;
};
G_DEFINE_TYPE(VirtViewerDisplayVnc, virt_viewer_display_vnc, VIRT_VIEWER_TYPE_DISPLAY)
static void virt_viewer_display_vnc_send_keys(VirtViewerDisplay* display, const guint *keyvals, int nkeyvals);
static GdkPixbuf *virt_viewer_display_vnc_get_pixbuf(VirtViewerDisplay* display);
static void virt_viewer_display_vnc_close(VirtViewerDisplay *display);
static void
virt_viewer_display_vnc_finalize(GObject *obj)
{
VirtViewerDisplayVnc *self = VIRT_VIEWER_DISPLAY_VNC(obj);
g_object_unref(self->vnc);
G_OBJECT_CLASS(virt_viewer_display_vnc_parent_class)->finalize(obj);
}
static void
virt_viewer_display_vnc_release_cursor(VirtViewerDisplay *display)
{
VirtViewerDisplayVnc *self = VIRT_VIEWER_DISPLAY_VNC(display);
vnc_display_force_grab(self->vnc, FALSE);
}
static void
virt_viewer_display_vnc_class_init(VirtViewerDisplayVncClass *klass)
{
VirtViewerDisplayClass *dclass = VIRT_VIEWER_DISPLAY_CLASS(klass);
GObjectClass *oclass = G_OBJECT_CLASS(klass);
oclass->finalize = virt_viewer_display_vnc_finalize;
dclass->send_keys = virt_viewer_display_vnc_send_keys;
dclass->get_pixbuf = virt_viewer_display_vnc_get_pixbuf;
dclass->close = virt_viewer_display_vnc_close;
dclass->release_cursor = virt_viewer_display_vnc_release_cursor;
}
static void
virt_viewer_display_vnc_init(VirtViewerDisplayVnc *self G_GNUC_UNUSED)
{
}
static void
virt_viewer_display_vnc_mouse_grab(VncDisplay *vnc G_GNUC_UNUSED,
VirtViewerDisplay *display)
{
g_signal_emit_by_name(display, "display-pointer-grab");
}
static void
virt_viewer_display_vnc_mouse_ungrab(VncDisplay *vnc G_GNUC_UNUSED,
VirtViewerDisplay *display)
{
g_signal_emit_by_name(display, "display-pointer-ungrab");
}
static void
virt_viewer_display_vnc_key_grab(VncDisplay *vnc G_GNUC_UNUSED,
VirtViewerDisplay *display)
{
g_signal_emit_by_name(display, "display-keyboard-grab");
}
static void
virt_viewer_display_vnc_key_ungrab(VncDisplay *vnc G_GNUC_UNUSED,
VirtViewerDisplay *display)
{
g_signal_emit_by_name(display, "display-keyboard-ungrab");
}
static void
virt_viewer_display_vnc_initialized(VncDisplay *vnc G_GNUC_UNUSED,
VirtViewerDisplay *display)
{
gchar *name = NULL;
gchar *uuid = NULL;
VirtViewerSession *session = virt_viewer_display_get_session(display);
VirtViewerApp *app = virt_viewer_session_get_app(session);
g_object_get(app, "guest-name", &name, "uuid", &uuid, NULL);
if (name == NULL || *name == '\0') {
const gchar * vnc_name = vnc_display_get_name(vnc);
if (vnc_name != NULL) {
g_object_set(app, "guest-name", vnc_name, NULL);
}
}
if (uuid == NULL || *uuid == '\0') {
g_object_set(app, "uuid", _("VNC does not provide GUID"), NULL);
}
virt_viewer_display_set_enabled(display, TRUE);
virt_viewer_display_set_show_hint(display,
VIRT_VIEWER_DISPLAY_SHOW_HINT_READY, TRUE);
g_free(name);
g_free(uuid);
}
static void
virt_viewer_display_vnc_send_keys(VirtViewerDisplay* display,
const guint *keyvals,
int nkeyvals)
{
VirtViewerDisplayVnc *self = VIRT_VIEWER_DISPLAY_VNC(display);
g_return_if_fail(self != NULL);
g_return_if_fail(keyvals != NULL);
g_return_if_fail(self->vnc != NULL);
vnc_display_send_keys(self->vnc, keyvals, nkeyvals);
}
static GdkPixbuf *
virt_viewer_display_vnc_get_pixbuf(VirtViewerDisplay* display)
{
VirtViewerDisplayVnc *self = VIRT_VIEWER_DISPLAY_VNC(display);
g_return_val_if_fail(self != NULL, NULL);
g_return_val_if_fail(self->vnc != NULL, NULL);
return vnc_display_get_pixbuf(self->vnc);
}
/*
* Called when desktop size changes.
*
* It either tries to resize the main window, or it triggers
* recalculation of the display within existing window size
*/
static void
virt_viewer_display_vnc_resize_desktop(VncDisplay *vnc G_GNUC_UNUSED,
int width, int height,
VirtViewerDisplay *display)
{
g_debug("desktop resize %dx%d", width, height);
virt_viewer_display_set_desktop_size(display, width, height);
}
static void
release_cursor_display_hotkey_changed(VirtViewerApp *app,
GParamSpec *pspec G_GNUC_UNUSED,
VncDisplay *vnc)
{
gboolean kiosk;
gchar *hotkey;
g_object_get(app, "kiosk", &kiosk, NULL);
hotkey = virt_viewer_app_get_release_cursor_display_hotkey(app);
if(kiosk || hotkey == NULL) {
/* disable default grab sequence */
VncGrabSequence *seq = vnc_grab_sequence_new(0, NULL);
vnc_display_set_grab_keys(vnc, seq);
vnc_grab_sequence_free(seq);
} else {
hotkey = spice_hotkey_to_display_hotkey(hotkey);
VncGrabSequence *seq = vnc_grab_sequence_new_from_string(hotkey);
g_free(hotkey);
vnc_display_set_grab_keys(vnc, seq);
vnc_grab_sequence_free(seq);
}
}
#ifdef HAVE_VNC_REMOTE_RESIZE
static void
resize_policy_changed(VirtViewerDisplayVnc *self,
GParamSpec *pspec G_GNUC_UNUSED,
VncDisplay *vnc)
{
gboolean enable = virt_viewer_display_get_auto_resize(VIRT_VIEWER_DISPLAY(self));
vnc_display_set_allow_resize(vnc, enable);
}
static void
zoom_level_changed(VirtViewerDisplay *display,
GParamSpec *pspec G_GNUC_UNUSED,
VncDisplay *vnc)
{
guint zoom = virt_viewer_display_get_zoom_level(display);
vnc_display_set_zoom_level(vnc, zoom);
}
#endif
GtkWidget *
virt_viewer_display_vnc_new(VirtViewerSessionVnc *session,
VncDisplay *vnc)
{
VirtViewerDisplayVnc *self;
VirtViewerApp *app;
self = g_object_new(VIRT_VIEWER_TYPE_DISPLAY_VNC, "session", session, NULL);
g_object_ref(vnc);
self->vnc = vnc;
gtk_container_add(GTK_CONTAINER(self), GTK_WIDGET(self->vnc));
vnc_display_set_keyboard_grab(self->vnc, TRUE);
vnc_display_set_pointer_grab(self->vnc, TRUE);
/*
* In auto-resize mode we have things setup so that we always
* automatically resize the top level window to be exactly the
* same size as the VNC desktop, except when it won't fit on
* the local screen, at which point we let it scale down.
* The upshot is, we always want scaling enabled.
* We disable force_size because we want to allow user to
* manually size the widget smaller too
*/
vnc_display_set_force_size(self->vnc, FALSE);
vnc_display_set_scaling(self->vnc, TRUE);
#ifdef HAVE_VNC_REMOTE_RESIZE
vnc_display_set_keep_aspect_ratio(self->vnc, TRUE);
g_object_set(self, "force-aspect", FALSE, NULL);
#endif
/* When VNC desktop resizes, we have to resize the containing widget */
g_signal_connect(self->vnc, "vnc-desktop-resize",
G_CALLBACK(virt_viewer_display_vnc_resize_desktop), self);
g_signal_connect(self->vnc, "vnc-pointer-grab",
G_CALLBACK(virt_viewer_display_vnc_mouse_grab), self);
g_signal_connect(self->vnc, "vnc-pointer-ungrab",
G_CALLBACK(virt_viewer_display_vnc_mouse_ungrab), self);
g_signal_connect(self->vnc, "vnc-keyboard-grab",
G_CALLBACK(virt_viewer_display_vnc_key_grab), self);
g_signal_connect(self->vnc, "vnc-keyboard-ungrab",
G_CALLBACK(virt_viewer_display_vnc_key_ungrab), self);
g_signal_connect(self->vnc, "vnc-initialized",
G_CALLBACK(virt_viewer_display_vnc_initialized), self);
app = virt_viewer_session_get_app(VIRT_VIEWER_SESSION(session));
virt_viewer_signal_connect_object(app, "notify::release-cursor-display-hotkey",
G_CALLBACK(release_cursor_display_hotkey_changed), self->vnc, 0);
release_cursor_display_hotkey_changed(app, NULL, self->vnc);
#ifdef HAVE_VNC_REMOTE_RESIZE
virt_viewer_signal_connect_object(self, "notify::auto-resize",
G_CALLBACK(resize_policy_changed), self->vnc, 0);
virt_viewer_signal_connect_object(self, "notify::zoom-level",
G_CALLBACK(zoom_level_changed), self->vnc, 0);
resize_policy_changed(self, NULL, self->vnc);
#endif
return GTK_WIDGET(self);
}
static void
virt_viewer_display_vnc_close(VirtViewerDisplay *display)
{
VirtViewerDisplayVnc *self = VIRT_VIEWER_DISPLAY_VNC(display);
/* We're not the real owner, so we shouldn't be letting the container
* destroy the widget. There are still signals that need to be
* propagated to the VirtViewerSession
*/
gtk_container_remove(GTK_CONTAINER(display), GTK_WIDGET(self->vnc));
}