/*
* Virt Viewer: A virtual machine console viewer
*
* Copyright (C) 2007-2009 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 <math.h>
#include <spice-client-gtk.h>
#include <glib/gi18n.h>
#include "virt-viewer-util.h"
#include "virt-viewer-display-spice.h"
#include "virt-viewer-auth.h"
G_DEFINE_TYPE (VirtViewerDisplaySpice, virt_viewer_display_spice, VIRT_VIEWER_TYPE_DISPLAY)
typedef enum {
AUTO_RESIZE_ALWAYS,
AUTO_RESIZE_FULLSCREEN,
AUTO_RESIZE_NEVER,
} AutoResizeState;
struct _VirtViewerDisplaySpicePrivate {
SpiceChannel *channel; /* weak reference */
SpiceDisplay *display;
AutoResizeState auto_resize;
guint x;
guint y;
};
#define VIRT_VIEWER_DISPLAY_SPICE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), VIRT_VIEWER_TYPE_DISPLAY_SPICE, VirtViewerDisplaySpicePrivate))
static void virt_viewer_display_spice_send_keys(VirtViewerDisplay *display,
const guint *keyvals,
int nkeyvals);
static GdkPixbuf *virt_viewer_display_spice_get_pixbuf(VirtViewerDisplay *display);
static void virt_viewer_display_spice_release_cursor(VirtViewerDisplay *display);
static void virt_viewer_display_spice_close(VirtViewerDisplay *display G_GNUC_UNUSED);
static gboolean virt_viewer_display_spice_selectable(VirtViewerDisplay *display);
static void virt_viewer_display_spice_enable(VirtViewerDisplay *display);
static void virt_viewer_display_spice_disable(VirtViewerDisplay *display);
static void
virt_viewer_display_spice_class_init(VirtViewerDisplaySpiceClass *klass)
{
VirtViewerDisplayClass *dclass = VIRT_VIEWER_DISPLAY_CLASS(klass);
dclass->send_keys = virt_viewer_display_spice_send_keys;
dclass->get_pixbuf = virt_viewer_display_spice_get_pixbuf;
dclass->release_cursor = virt_viewer_display_spice_release_cursor;
dclass->close = virt_viewer_display_spice_close;
dclass->selectable = virt_viewer_display_spice_selectable;
dclass->enable = virt_viewer_display_spice_enable;
dclass->disable = virt_viewer_display_spice_disable;
g_type_class_add_private(klass, sizeof(VirtViewerDisplaySpicePrivate));
}
static SpiceMainChannel*
get_main(VirtViewerDisplay *self)
{
VirtViewerSessionSpice *session;
session = VIRT_VIEWER_SESSION_SPICE(virt_viewer_display_get_session(self));
return virt_viewer_session_spice_get_main_channel(session);
}
static void
virt_viewer_display_spice_monitor_geometry_changed(VirtViewerDisplaySpice *self)
{
g_signal_emit_by_name(self, "monitor-geometry-changed", NULL);
}
static void update_enabled(VirtViewerDisplay *self, gboolean enabled, gboolean send)
{
SpiceMainChannel *main_channel = get_main(self);
guint nth;
/* this may happen when finalizing */
if (!main_channel)
return;
g_object_get(self, "nth-display", &nth, NULL);
spice_main_channel_update_display_enabled(main_channel, nth, enabled, send);
}
static void
show_hint_changed(VirtViewerDisplay *self)
{
/* just keep spice-gtk state up-to-date, but don't send change anything */
update_enabled(self, virt_viewer_display_get_enabled(self), FALSE);
}
static void virt_viewer_display_spice_enable(VirtViewerDisplay *self)
{
virt_viewer_display_set_enabled(self, TRUE);
update_enabled(self, TRUE, TRUE);
}
static void virt_viewer_display_spice_disable(VirtViewerDisplay *self)
{
virt_viewer_display_set_enabled(self, FALSE);
update_enabled(self, FALSE, TRUE);
}
static void
virt_viewer_display_spice_init(VirtViewerDisplaySpice *self G_GNUC_UNUSED)
{
self->priv = VIRT_VIEWER_DISPLAY_SPICE_GET_PRIVATE(self);
self->priv->auto_resize = AUTO_RESIZE_ALWAYS;
g_signal_connect(self, "notify::show-hint", G_CALLBACK(show_hint_changed), NULL);
}
static void
virt_viewer_display_spice_send_keys(VirtViewerDisplay *display,
const guint *keyvals,
int nkeyvals)
{
VirtViewerDisplaySpice *self = VIRT_VIEWER_DISPLAY_SPICE(display);
g_return_if_fail(self != NULL);
g_return_if_fail(self->priv->display != NULL);
spice_display_send_keys(self->priv->display, keyvals, nkeyvals, SPICE_DISPLAY_KEY_EVENT_CLICK);
}
static GdkPixbuf *
virt_viewer_display_spice_get_pixbuf(VirtViewerDisplay *display)
{
VirtViewerDisplaySpice *self = VIRT_VIEWER_DISPLAY_SPICE(display);
g_return_val_if_fail(self != NULL, NULL);
g_return_val_if_fail(self->priv->display != NULL, NULL);
return spice_display_get_pixbuf(self->priv->display);
}
static void
update_display_ready(VirtViewerDisplaySpice *self)
{
gboolean ready;
g_object_get(self->priv->display, "ready", &ready, NULL);
virt_viewer_display_set_show_hint(VIRT_VIEWER_DISPLAY(self),
VIRT_VIEWER_DISPLAY_SHOW_HINT_READY, ready);
}
static void
virt_viewer_display_spice_keyboard_grab(SpiceDisplay *display G_GNUC_UNUSED,
int grabbed,
VirtViewerDisplaySpice *self)
{
if (grabbed)
g_signal_emit_by_name(self, "display-keyboard-grab");
else
g_signal_emit_by_name(self, "display-keyboard-ungrab");
}
static void
virt_viewer_display_spice_mouse_grab(SpiceDisplay *display G_GNUC_UNUSED,
int grabbed,
VirtViewerDisplaySpice *self)
{
if (grabbed)
g_signal_emit_by_name(self, "display-pointer-grab");
else
g_signal_emit_by_name(self, "display-pointer-ungrab");
}
static void
virt_viewer_display_spice_size_allocate(VirtViewerDisplaySpice *self,
GtkAllocation *allocation,
gpointer data G_GNUC_UNUSED)
{
GtkRequisition preferred;
if (!virt_viewer_display_get_enabled(VIRT_VIEWER_DISPLAY(self)))
return;
/* ignore all allocations before the widget gets mapped to screen since we
* only want to trigger guest resizing due to user actions
*/
if (!gtk_widget_get_mapped(GTK_WIDGET(self)))
return;
/* when the window gets resized due to a change in zoom level, we don't want
* to re-size the guest display. So if we get an allocation event that
* resizes the window to the size it already wants to be (based on desktop
* size and zoom level), just return early
*/
gtk_widget_get_preferred_size(GTK_WIDGET(self), NULL, &preferred);
if (preferred.width == allocation->width
&& preferred.height == allocation->height) {
return;
}
if (self->priv->auto_resize != AUTO_RESIZE_NEVER)
virt_viewer_display_spice_monitor_geometry_changed(self);
if (self->priv->auto_resize == AUTO_RESIZE_FULLSCREEN)
self->priv->auto_resize = AUTO_RESIZE_NEVER;
}
static void
zoom_level_changed(VirtViewerDisplaySpice *self,
GParamSpec *pspec G_GNUC_UNUSED,
VirtViewerApp *app G_GNUC_UNUSED)
{
if (self->priv->auto_resize != AUTO_RESIZE_NEVER)
return;
virt_viewer_display_spice_monitor_geometry_changed(self);
}
static void
enable_accel_changed(VirtViewerApp *app,
GParamSpec *pspec G_GNUC_UNUSED,
VirtViewerDisplaySpice *self)
{
GtkAccelKey key = {0, 0, 0};
if (virt_viewer_app_get_enable_accel(app))
gtk_accel_map_lookup_entry("<virt-viewer>/view/release-cursor", &key);
if (key.accel_key || key.accel_mods) {
SpiceGrabSequence *seq = spice_grab_sequence_new(0, NULL);
/* disable default grab sequence */
spice_display_set_grab_keys(self->priv->display, seq);
spice_grab_sequence_free(seq);
} else {
spice_display_set_grab_keys(self->priv->display, NULL);
}
}
static void
fullscreen_changed(VirtViewerDisplaySpice *self,
GParamSpec *pspec G_GNUC_UNUSED,
VirtViewerApp *app)
{
if (virt_viewer_display_get_fullscreen(VIRT_VIEWER_DISPLAY(self))) {
gboolean auto_conf;
g_object_get(app, "fullscreen", &auto_conf, NULL);
if (auto_conf)
self->priv->auto_resize = AUTO_RESIZE_NEVER;
else
self->priv->auto_resize = AUTO_RESIZE_FULLSCREEN;
} else
self->priv->auto_resize = AUTO_RESIZE_ALWAYS;
}
GtkWidget *
virt_viewer_display_spice_new(VirtViewerSessionSpice *session,
SpiceChannel *channel,
gint monitorid)
{
VirtViewerDisplaySpice *self;
VirtViewerApp *app;
gint channelid;
SpiceSession *s;
g_return_val_if_fail(SPICE_IS_DISPLAY_CHANNEL(channel), NULL);
g_object_get(channel, "channel-id", &channelid, NULL);
if (channelid != 0 && monitorid != 0) {
g_warning("Unsupported graphics configuration:\n"
"spice-gtk only supports multiple graphics channels if they are single-head");
return NULL;
}
self = g_object_new(VIRT_VIEWER_TYPE_DISPLAY_SPICE,
"session", session,
// either monitorid is always 0 or channelid
// is, we can't have display (0, 2) and (2, 0)
// for example
"nth-display", channelid + monitorid,
NULL);
self->priv->channel = channel;
g_object_get(session, "spice-session", &s, NULL);
self->priv->display = spice_display_new_with_monitor(s, channelid, monitorid);
g_object_unref(s);
virt_viewer_signal_connect_object(self->priv->display, "notify::ready",
G_CALLBACK(update_display_ready), self,
G_CONNECT_SWAPPED);
update_display_ready(self);
gtk_container_add(GTK_CONTAINER(self), GTK_WIDGET(self->priv->display));
gtk_widget_show(GTK_WIDGET(self->priv->display));
g_object_set(self->priv->display,
"grab-keyboard", TRUE,
"grab-mouse", TRUE,
"resize-guest", FALSE,
"scaling", TRUE,
NULL);
virt_viewer_signal_connect_object(self->priv->display, "keyboard-grab",
G_CALLBACK(virt_viewer_display_spice_keyboard_grab), self, 0);
virt_viewer_signal_connect_object(self->priv->display, "mouse-grab",
G_CALLBACK(virt_viewer_display_spice_mouse_grab), self, 0);
virt_viewer_signal_connect_object(self, "size-allocate",
G_CALLBACK(virt_viewer_display_spice_size_allocate), self, 0);
app = virt_viewer_session_get_app(VIRT_VIEWER_SESSION(session));
virt_viewer_signal_connect_object(app, "notify::enable-accel",
G_CALLBACK(enable_accel_changed), self, 0);
virt_viewer_signal_connect_object(self, "notify::fullscreen",
G_CALLBACK(fullscreen_changed), app, 0);
virt_viewer_signal_connect_object(self, "notify::zoom-level",
G_CALLBACK(zoom_level_changed), app, 0);
fullscreen_changed(self, NULL, app);
enable_accel_changed(app, NULL, self);
return GTK_WIDGET(self);
}
static void
virt_viewer_display_spice_release_cursor(VirtViewerDisplay *display)
{
VirtViewerDisplaySpice *self = VIRT_VIEWER_DISPLAY_SPICE(display);
spice_display_mouse_ungrab(self->priv->display);
}
static void
virt_viewer_display_spice_close(VirtViewerDisplay *display G_GNUC_UNUSED)
{
}
static gboolean
virt_viewer_display_spice_selectable(VirtViewerDisplay *self)
{
gboolean agent_connected;
SpiceMainChannel *mainc;
mainc = get_main(self);
g_object_get(mainc,
"agent-connected", &agent_connected,
NULL);
return agent_connected;
}
void
virt_viewer_display_spice_set_desktop(VirtViewerDisplay *display,
guint x, guint y,
guint width, guint height)
{
VirtViewerDisplaySpicePrivate *priv;
guint desktopWidth, desktopHeight;
g_return_if_fail(VIRT_VIEWER_IS_DISPLAY_SPICE(display));
virt_viewer_display_get_desktop_size(display, &desktopWidth, &desktopHeight);
priv = VIRT_VIEWER_DISPLAY_SPICE(display)->priv;
if (desktopWidth == width && desktopHeight == height && priv->x == x && priv->y == y)
return;
g_object_set(G_OBJECT(display), "desktop-width", width, "desktop-height", height, NULL);
priv->x = x;
priv->y = y;
virt_viewer_display_queue_resize(display);
g_signal_emit_by_name(display, "display-desktop-resize");
}
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/