camera-monitor: move from Empathy to tp-account-widgets

https://bugzilla.gnome.org/show_bug.cgi?id=699492

3 files changed, 366 insertions, 0 deletions

diff --git a/tp-account-widgets/Makefile.am b/tp-account-widgets/Makefile.am
index 7bbe9f1c..26e80340 100644
--- a/tp-account-widgets/Makefile.am
+++ b/tp-account-widgets/Makefile.am
@@ -28,6 +28,7 @@ libtp_account_widgets_sources =            	\
 	tpaw-account-widget-sip.c		\
 	tpaw-builder.c				\
 	tpaw-calendar-button.c			\
+	tpaw-camera-monitor.c			\
 	tpaw-connection-managers.c		\
 	tpaw-contactinfo-utils.c		\
 	tpaw-keyring.c				\
@@ -51,6 +52,7 @@ libtp_account_widgets_headers =			\
 	tpaw-account-widget-sip.h		\
 	tpaw-builder.h				\
 	tpaw-calendar-button.h			\
+	tpaw-camera-monitor.h			\
 	tpaw-connection-managers.h		\
 	tpaw-contactinfo-utils.h		\
 	tpaw-keyring.h				\
diff --git a/tp-account-widgets/tpaw-camera-monitor.c b/tp-account-widgets/tpaw-camera-monitor.c
new file mode 100644
index 00000000..fac91d0e
--- /dev/null
+++ b/tp-account-widgets/tpaw-camera-monitor.c
@@ -0,0 +1,295 @@
+/*
+ * 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 "tpaw-camera-monitor.h"
+
+#include <tp-account-widgets/cheese-camera-device-monitor.h>
+
+#define DEBUG_FLAG EMPATHY_DEBUG_OTHER
+#include "empathy-debug.h"
+
+struct _TpawCameraMonitorPrivate
+{
+  TpawCameraDeviceMonitor *tpaw_monitor;
+  GQueue *cameras;
+  gint num_cameras;
+};
+
+enum
+{
+  PROP_0,
+  PROP_AVAILABLE,
+};
+
+enum
+{
+  CAMERA_ADDED,
+  CAMERA_REMOVED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL];
+
+G_DEFINE_TYPE (TpawCameraMonitor, tpaw_camera_monitor, G_TYPE_OBJECT);
+
+static TpawCameraMonitor *manager_singleton = NULL;
+
+static TpawCamera *
+tpaw_camera_new (const gchar *id,
+    const gchar *device,
+    const gchar *name)
+{
+  TpawCamera *camera = g_slice_new (TpawCamera);
+
+  camera->id = g_strdup (id);
+  camera->device = g_strdup (device);
+  camera->name = g_strdup (name);
+
+  return camera;
+}
+
+static TpawCamera *
+tpaw_camera_copy (TpawCamera *camera)
+{
+  return tpaw_camera_new (camera->id, camera->device, camera->name);
+}
+
+static void
+tpaw_camera_free (TpawCamera *camera)
+{
+  g_free (camera->id);
+  g_free (camera->device);
+  g_free (camera->name);
+
+  g_slice_free (TpawCamera, camera);
+}
+
+G_DEFINE_BOXED_TYPE (TpawCamera, tpaw_camera,
+    tpaw_camera_copy, tpaw_camera_free)
+
+static gint
+tpaw_camera_find (gconstpointer a,
+    gconstpointer b)
+{
+  const TpawCamera *camera = a;
+  const gchar *id = b;
+
+  return g_strcmp0 (camera->id, id);
+}
+
+static void
+tpaw_camera_monitor_free_camera_foreach (gpointer data,
+    gpointer user_data)
+{
+  tpaw_camera_free (data);
+}
+
+static void
+on_camera_added (TpawCameraDeviceMonitor *device,
+    gchar *id,
+    gchar *filename,
+    gchar *product_name,
+    gint api_version,
+    TpawCameraMonitor *self)
+{
+  TpawCamera *camera;
+
+  if (self->priv->cameras == NULL)
+    return;
+
+  camera = tpaw_camera_new (id, filename, product_name);
+
+  g_queue_push_tail (self->priv->cameras, camera);
+
+  self->priv->num_cameras++;
+
+  if (self->priv->num_cameras == 1)
+    g_object_notify (G_OBJECT (self), "available");
+
+  g_signal_emit (self, signals[CAMERA_ADDED], 0, camera);
+}
+
+static void
+on_camera_removed (TpawCameraDeviceMonitor *device,
+    gchar *id,
+    TpawCameraMonitor *self)
+{
+  TpawCamera *camera;
+  GList *l;
+
+  if (self->priv->cameras == NULL)
+    return;
+
+  l = g_queue_find_custom (self->priv->cameras, id, tpaw_camera_find);
+
+  g_return_if_fail (l != NULL);
+
+  camera = l->data;
+
+  g_queue_delete_link (self->priv->cameras, l);
+
+  self->priv->num_cameras--;
+
+  if (self->priv->num_cameras == 0)
+    g_object_notify (G_OBJECT (self), "available");
+
+  g_signal_emit (self, signals[CAMERA_REMOVED], 0, camera);
+
+  tpaw_camera_free (camera);
+}
+
+const GList *
+tpaw_camera_monitor_get_cameras (TpawCameraMonitor *self)
+{
+  if (self->priv->cameras != NULL)
+    return self->priv->cameras->head;
+  else
+    return NULL;
+}
+
+static void
+tpaw_camera_monitor_get_property (GObject *object,
+    guint prop_id,
+    GValue *value,
+    GParamSpec *pspec)
+{
+  TpawCameraMonitor *self = (TpawCameraMonitor *) 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
+tpaw_camera_monitor_dispose (GObject *object)
+{
+  TpawCameraMonitor *self = TPAW_CAMERA_MONITOR (object);
+
+  tp_clear_object (&self->priv->tpaw_monitor);
+
+  g_queue_foreach (self->priv->cameras,
+      tpaw_camera_monitor_free_camera_foreach, NULL);
+  tp_clear_pointer (&self->priv->cameras, g_queue_free);
+
+  G_OBJECT_CLASS (tpaw_camera_monitor_parent_class)->dispose (object);
+}
+
+static void
+tpaw_camera_monitor_constructed (GObject *object)
+{
+  TpawCameraMonitor *self = (TpawCameraMonitor *) object;
+
+  G_OBJECT_CLASS (tpaw_camera_monitor_parent_class)->constructed (object);
+
+  tpaw_camera_device_monitor_coldplug (self->priv->tpaw_monitor);
+}
+
+static void
+tpaw_camera_monitor_class_init (TpawCameraMonitorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = tpaw_camera_monitor_dispose;
+  object_class->constructed = tpaw_camera_monitor_constructed;
+  object_class->get_property = tpaw_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));
+
+  signals[CAMERA_ADDED] =
+      g_signal_new ("added", G_OBJECT_CLASS_TYPE (klass),
+          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+          0, NULL, NULL,
+          g_cclosure_marshal_generic,
+          G_TYPE_NONE, 1, TPAW_TYPE_CAMERA);
+
+  signals[CAMERA_REMOVED] =
+      g_signal_new ("removed", G_OBJECT_CLASS_TYPE (klass),
+          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+          0, NULL, NULL,
+          g_cclosure_marshal_generic,
+          G_TYPE_NONE, 1, TPAW_TYPE_CAMERA);
+
+  g_type_class_add_private (object_class,
+      sizeof (TpawCameraMonitorPrivate));
+}
+
+static void
+tpaw_camera_monitor_init (TpawCameraMonitor *self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+      TPAW_TYPE_CAMERA_MONITOR, TpawCameraMonitorPrivate);
+
+  self->priv->cameras = g_queue_new ();
+
+  self->priv->tpaw_monitor = tpaw_camera_device_monitor_new ();
+
+  g_signal_connect (self->priv->tpaw_monitor, "added",
+      G_CALLBACK (on_camera_added), self);
+  g_signal_connect (self->priv->tpaw_monitor, "removed",
+      G_CALLBACK (on_camera_removed), self);
+
+#ifndef HAVE_UDEV
+  /* No udev, assume there are cameras present */
+  self->priv->num_cameras = 1;
+#endif
+}
+
+TpawCameraMonitor *
+tpaw_camera_monitor_dup_singleton (void)
+{
+  GObject *retval;
+
+  if (manager_singleton)
+    {
+      retval = g_object_ref (manager_singleton);
+    }
+  else
+    {
+      retval = g_object_new (TPAW_TYPE_CAMERA_MONITOR, NULL);
+
+      manager_singleton = TPAW_CAMERA_MONITOR (retval);
+      g_object_add_weak_pointer (retval, (gpointer) &manager_singleton);
+    }
+
+  return TPAW_CAMERA_MONITOR (retval);
+}
+
+TpawCameraMonitor *
+tpaw_camera_monitor_new (void)
+{
+  return TPAW_CAMERA_MONITOR (
+      g_object_new (TPAW_TYPE_CAMERA_MONITOR, NULL));
+}
+
+gboolean tpaw_camera_monitor_get_available (TpawCameraMonitor *self)
+{
+  g_return_val_if_fail (TPAW_IS_CAMERA_MONITOR (self), FALSE);
+
+  return self->priv->num_cameras > 0;
+}
diff --git a/tp-account-widgets/tpaw-camera-monitor.h b/tp-account-widgets/tpaw-camera-monitor.h
new file mode 100644
index 00000000..773e19ce
--- /dev/null
+++ b/tp-account-widgets/tpaw-camera-monitor.h
@@ -0,0 +1,69 @@
+/*
+ * 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>
+ */
+
+#ifndef __TPAW_CAMERA_MONITOR_H__
+#define __TPAW_CAMERA_MONITOR_H__
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+#define TPAW_TYPE_CAMERA_MONITOR         (tpaw_camera_monitor_get_type ())
+#define TPAW_CAMERA_MONITOR(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), TPAW_TYPE_CAMERA_MONITOR, TpawCameraMonitor))
+#define TPAW_CAMERA_MONITOR_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), TPAW_TYPE_CAMERA_MONITOR, TpawCameraMonitorClass))
+#define TPAW_IS_CAMERA_MONITOR(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), TPAW_TYPE_CAMERA_MONITOR))
+#define TPAW_IS_CAMERA_MONITOR_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), TPAW_TYPE_CAMERA_MONITOR))
+#define TPAW_CAMERA_MONITOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), TPAW_TYPE_CAMERA_MONITOR, TpawCameraMonitorClass))
+
+typedef struct _TpawCameraMonitor TpawCameraMonitor;
+typedef struct _TpawCameraMonitorClass TpawCameraMonitorClass;
+typedef struct _TpawCameraMonitorPrivate TpawCameraMonitorPrivate;
+
+struct _TpawCameraMonitor
+{
+  GObject parent;
+  TpawCameraMonitorPrivate *priv;
+};
+
+struct _TpawCameraMonitorClass
+{
+  GObjectClass parent_class;
+};
+
+typedef struct
+{
+  gchar *id;
+  gchar *device;
+  gchar *name;
+} TpawCamera;
+
+#define TPAW_TYPE_CAMERA (tpaw_camera_get_type ())
+GType tpaw_camera_get_type (void) G_GNUC_CONST;
+
+GType tpaw_camera_monitor_get_type (void) G_GNUC_CONST;
+
+TpawCameraMonitor *tpaw_camera_monitor_dup_singleton (void);
+TpawCameraMonitor *tpaw_camera_monitor_new (void);
+
+gboolean tpaw_camera_monitor_get_available (TpawCameraMonitor *self);
+
+const GList * tpaw_camera_monitor_get_cameras (TpawCameraMonitor *self);
+
+G_END_DECLS
+#endif /* __TPAW_CAMERA_MONITOR_H__ */