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Diffstat (limited to 'libempathy/empathy-camera-monitor.c')
-rw-r--r-- | libempathy/empathy-camera-monitor.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/libempathy/empathy-camera-monitor.c b/libempathy/empathy-camera-monitor.c new file mode 100644 index 000000000..702838127 --- /dev/null +++ b/libempathy/empathy-camera-monitor.c @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2011 Collabora Ltd. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Authors: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk> + */ + +#include <config.h> + +#include <string.h> + +#include <telepathy-glib/util.h> + +#include "empathy-camera-monitor.h" +#include "cheese-camera-device-monitor.h" +#include "empathy-utils.h" + +#define DEBUG_FLAG EMPATHY_DEBUG_OTHER +#include "empathy-debug.h" + +struct _EmpathyCameraMonitorPrivate +{ + CheeseCameraDeviceMonitor *cheese_monitor; + gint num_cameras; +}; + +enum +{ + PROP_0, + PROP_AVAILABLE, +}; + +G_DEFINE_TYPE (EmpathyCameraMonitor, empathy_camera_monitor, G_TYPE_OBJECT); + +static EmpathyCameraMonitor *manager_singleton = NULL; + +static void +on_camera_added (CheeseCameraDeviceMonitor *device, + gchar *id, + gchar *filename, + gchar *product_name, + gint api_version, + EmpathyCameraMonitor *self) +{ + self->priv->num_cameras++; + + if (self->priv->num_cameras == 1) + g_object_notify (G_OBJECT (self), "available"); +} + +static void +on_camera_removed (CheeseCameraDeviceMonitor *device, + gchar *id, + EmpathyCameraMonitor *self) +{ + self->priv->num_cameras--; + + if (self->priv->num_cameras == 0) + g_object_notify (G_OBJECT (self), "available"); +} + +static void +empathy_camera_monitor_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EmpathyCameraMonitor *self = (EmpathyCameraMonitor *) object; + + switch (prop_id) + { + case PROP_AVAILABLE: + g_value_set_boolean (value, self->priv->num_cameras > 0); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +empathy_camera_monitor_dispose (GObject *object) +{ + EmpathyCameraMonitor *self = EMPATHY_CAMERA_MONITOR (object); + + tp_clear_object (&self->priv->cheese_monitor); + + G_OBJECT_CLASS (empathy_camera_monitor_parent_class)->dispose (object); +} + +static GObject * +empathy_camera_monitor_constructor (GType type, + guint n_props, + GObjectConstructParam *props) +{ + GObject *retval; + + if (manager_singleton) + { + retval = g_object_ref (manager_singleton); + } + else + { + retval = + G_OBJECT_CLASS (empathy_camera_monitor_parent_class)-> + constructor (type, n_props, props); + + manager_singleton = EMPATHY_CAMERA_MONITOR (retval); + g_object_add_weak_pointer (retval, (gpointer) & manager_singleton); + } + + return retval; +} + +static void +empathy_camera_monitor_constructed (GObject *object) +{ + EmpathyCameraMonitor *self = (EmpathyCameraMonitor *) object; + + G_OBJECT_CLASS (empathy_camera_monitor_parent_class)->constructed (object); + + cheese_camera_device_monitor_coldplug (self->priv->cheese_monitor); +} + +static void +empathy_camera_monitor_class_init (EmpathyCameraMonitorClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->dispose = empathy_camera_monitor_dispose; + object_class->constructor = empathy_camera_monitor_constructor; + object_class->constructed = empathy_camera_monitor_constructed; + object_class->get_property = empathy_camera_monitor_get_property; + + g_object_class_install_property (object_class, PROP_AVAILABLE, + g_param_spec_boolean ("available", "Available", + "Camera available", TRUE, G_PARAM_READABLE)); + + g_type_class_add_private (object_class, + sizeof (EmpathyCameraMonitorPrivate)); +} + +static void +empathy_camera_monitor_init (EmpathyCameraMonitor *self) +{ + self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, + EMPATHY_TYPE_CAMERA_MONITOR, EmpathyCameraMonitorPrivate); + + self->priv->cheese_monitor = cheese_camera_device_monitor_new (); + + g_signal_connect (self->priv->cheese_monitor, "added", + G_CALLBACK (on_camera_added), self); + g_signal_connect (self->priv->cheese_monitor, "removed", + G_CALLBACK (on_camera_removed), self); +} + +EmpathyCameraMonitor * +empathy_camera_monitor_dup_singleton (void) +{ + return g_object_new (EMPATHY_TYPE_CAMERA_MONITOR, NULL); +} |