/*
* Virt Viewer: A virtual machine console viewer
*
* Copyright (c) 2016 Red Hat, Inc.
*
* 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: Cole Robinson <crobinso@redhat.com>
* Author: Fabiano FidĂȘncio <fidencio@redhat.com>
*/
#include <config.h>
#include "virt-viewer-timed-revealer.h"
G_DEFINE_TYPE (VirtViewerTimedRevealer, virt_viewer_timed_revealer, GTK_TYPE_EVENT_BOX)
#define VIRT_VIEWER_TIMED_REVEALER_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), VIRT_VIEWER_TYPE_TIMED_REVEALER, VirtViewerTimedRevealerPrivate))
struct _VirtViewerTimedRevealerPrivate
{
gboolean fullscreen;
guint timeout_id;
GtkWidget *revealer;
};
static void
virt_viewer_timed_revealer_unregister_timeout(VirtViewerTimedRevealer *self)
{
VirtViewerTimedRevealerPrivate *priv = self->priv;
if (priv->timeout_id) {
g_source_remove(priv->timeout_id);
priv->timeout_id = 0;
}
}
static gboolean
schedule_unreveal_timeout_cb(VirtViewerTimedRevealer *self)
{
VirtViewerTimedRevealerPrivate *priv = self->priv;
gtk_revealer_set_reveal_child(GTK_REVEALER(priv->revealer), FALSE);
priv->timeout_id = 0;
return FALSE;
}
static void
virt_viewer_timed_revealer_schedule_unreveal_timeout(VirtViewerTimedRevealer *self,
guint timeout)
{
VirtViewerTimedRevealerPrivate *priv = self->priv;
if (priv->timeout_id != 0)
return;
priv->timeout_id = g_timeout_add(timeout,
(GSourceFunc)schedule_unreveal_timeout_cb,
self);
}
static void
virt_viewer_timed_revealer_grab_notify(VirtViewerTimedRevealer *self,
gboolean was_grabbed,
gpointer user_data G_GNUC_UNUSED)
{
if (was_grabbed)
virt_viewer_timed_revealer_schedule_unreveal_timeout(self, 1000);
}
static gboolean
virt_viewer_timed_revealer_enter_leave_notify(VirtViewerTimedRevealer *self,
GdkEventCrossing *event,
gpointer user_data G_GNUC_UNUSED)
{
VirtViewerTimedRevealerPrivate *priv = self->priv;
GdkDevice *device;
GtkAllocation allocation;
gint x, y;
gboolean entered;
if (!priv->fullscreen)
return FALSE;
device = gdk_event_get_device((GdkEvent *)event);
gdk_window_get_device_position(event->window, device, &x, &y, 0);
gtk_widget_get_allocation(GTK_WIDGET(self), &allocation);
entered = !!(x >= 0 && y >= 0 && x < allocation.width && y < allocation.height);
/*
* Pointer exited the toolbar, and toolbar is revealed. Schedule
* a timeout to close it, if one isn't already scheduled.
*/
if (!entered && gtk_revealer_get_reveal_child(GTK_REVEALER(priv->revealer))) {
virt_viewer_timed_revealer_schedule_unreveal_timeout(self, 1000);
return FALSE;
}
virt_viewer_timed_revealer_unregister_timeout(self);
if (entered && !gtk_revealer_get_reveal_child(GTK_REVEALER(priv->revealer))) {
gtk_revealer_set_reveal_child(GTK_REVEALER(priv->revealer), TRUE);
}
return FALSE;
}
static void
virt_viewer_timed_revealer_init(VirtViewerTimedRevealer *self)
{
self->priv = VIRT_VIEWER_TIMED_REVEALER_GET_PRIVATE(self);
}
static void
virt_viewer_timed_revealer_dispose(GObject *object)
{
VirtViewerTimedRevealer *self = VIRT_VIEWER_TIMED_REVEALER(object);
VirtViewerTimedRevealerPrivate *priv = self->priv;
priv->revealer = NULL;
if (priv->timeout_id) {
g_source_remove(priv->timeout_id);
priv->timeout_id = 0;
}
G_OBJECT_CLASS(virt_viewer_timed_revealer_parent_class)->dispose(object);
}
static void
virt_viewer_timed_revealer_class_init(VirtViewerTimedRevealerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
g_type_class_add_private (klass, sizeof (VirtViewerTimedRevealerPrivate));
object_class->dispose = virt_viewer_timed_revealer_dispose;
}
VirtViewerTimedRevealer *
virt_viewer_timed_revealer_new(GtkWidget *toolbar)
{
VirtViewerTimedRevealer *self;
VirtViewerTimedRevealerPrivate *priv;
self = g_object_new(VIRT_VIEWER_TYPE_TIMED_REVEALER, NULL);
priv = self->priv;
priv->fullscreen = FALSE;
priv->timeout_id = 0;
priv->revealer = gtk_revealer_new();
gtk_container_add(GTK_CONTAINER(priv->revealer), toolbar);
/*
* Adding the revealer to the eventbox seems to ensure the
* GtkEventBox always has 1 invisible pixel showing at the top of the
* screen, which we can use to grab the pointer event to show
* the hidden toolbar.
*/
gtk_container_add(GTK_CONTAINER(self), priv->revealer);
gtk_widget_set_halign(GTK_WIDGET(self), GTK_ALIGN_CENTER);
gtk_widget_set_valign(GTK_WIDGET(self), GTK_ALIGN_START);
gtk_widget_show_all(GTK_WIDGET(self));
g_signal_connect(self,
"grab-notify",
G_CALLBACK(virt_viewer_timed_revealer_grab_notify),
NULL);
g_signal_connect(self,
"enter-notify-event",
G_CALLBACK(virt_viewer_timed_revealer_enter_leave_notify),
NULL);
g_signal_connect(self,
"leave-notify-event",
G_CALLBACK(virt_viewer_timed_revealer_enter_leave_notify),
NULL);
return self;
}
void
virt_viewer_timed_revealer_force_reveal(VirtViewerTimedRevealer *self,
gboolean fullscreen)
{
VirtViewerTimedRevealerPrivate *priv;
g_return_if_fail(VIRT_VIEWER_IS_TIMED_REVEALER(self));
priv = self->priv;
virt_viewer_timed_revealer_unregister_timeout(self);
priv->fullscreen = fullscreen;
gtk_revealer_set_reveal_child(GTK_REVEALER(priv->revealer), fullscreen);
virt_viewer_timed_revealer_schedule_unreveal_timeout(self, 2000);
}