GNOME.org
 

[empathy] Initial work on a GNOME Online Accounts Mission Control plugin

commit b2c74dfc9854df75ed63ccc9f8eeda6d3f6fc71b
Author: Danielle Madeley <danielle madeley collabora co uk>
Date:   Tue Jun 14 17:18:58 2011 +0100

    Initial work on a GNOME Online Accounts Mission Control plugin

 Makefile.am                             |    7 +-
 configure.ac                            |   31 ++
 goa-mc-plugin/Makefile.am               |   18 ++
 goa-mc-plugin/mcp-account-manager-goa.c |  471 +++++++++++++++++++++++++++++++
 goa-mc-plugin/mcp-account-manager-goa.h |   60 ++++
 goa-mc-plugin/mission-control-plugin.c  |   48 ++++
 6 files changed, 634 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 3b88fe0..f86a3a4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,7 +1,8 @@
 MY_SUBDIRS = tools extensions po data telepathy-yell libempathy libempathy-gtk src help tests
 NST_SUBDIRS = nautilus-sendto-plugin
+GOA_SUBDIRS = goa-mc-plugin
 
-DIST_SUBDIRS = $(MY_SUBDIRS) $(NST_SUBDIRS)
+DIST_SUBDIRS = $(MY_SUBDIRS) $(NST_SUBDIRS) $(GOA_SUBDIRS)
 
 SUBDIRS = $(MY_SUBDIRS)
 
@@ -9,6 +10,10 @@ if HAVE_NST
 SUBDIRS += $(NST_SUBDIRS)
 endif
 
+if HAVE_GOA
+SUBDIRS += $(GOA_SUBDIRS)
+endif
+
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 
 DISTCHECK_CONFIGURE_FLAGS =		\
diff --git a/configure.ac b/configure.ac
index 94ba3fe..2b0d276 100644
--- a/configure.ac
+++ b/configure.ac
@@ -580,6 +580,35 @@ fi
 AM_CONDITIONAL(HAVE_NST, test "x$have_nst" = "xyes")
 
 # -----------------------------------------------------------
+# goa-mc-plugin
+# -----------------------------------------------------------
+AC_ARG_ENABLE(goa,
+              AS_HELP_STRING([--enable-goa=@<:@no/yes/auto@:>@],
+                             [build GOA MC plugin]), ,
+                             enable_goa=auto)
+
+if test "x$enable_goa" != "xno"; then
+   PKG_CHECK_MODULES(GOA,
+    [
+       mission-control-plugins
+       goa-1.0
+    ], have_goa="yes", have_goa="no")
+
+   AC_MSG_CHECKING([Mission Control plugins dir])
+   MISSION_CONTROL_PLUGINS_DIR=`pkg-config --variable=plugindir mission-control-plugins`
+
+   AC_SUBST(MISSION_CONTROL_PLUGINS_DIR)
+else
+   have_goa=no
+fi
+
+if test "x$enable_goa" = "xyes" -a "x$have_goa" != "xyes"; then
+   AC_MSG_ERROR([Could not find GOA dependencies.])
+fi
+
+AM_CONDITIONAL(HAVE_GOA, test "x$have_goa" = "xyes")
+
+# -----------------------------------------------------------
 # new, single-window control center
 # -----------------------------------------------------------
 AC_ARG_ENABLE(control_center_embedding,
@@ -664,6 +693,7 @@ AC_CONFIG_FILES([
    libempathy-gtk/Makefile
    src/Makefile
    nautilus-sendto-plugin/Makefile
+   goa-mc-plugin/Makefile
    help/Makefile
    tests/Makefile
    tests/interactive/Makefile
@@ -697,6 +727,7 @@ Configure summary:
 
     Extras:
 	Nautilus-sendto plugin......:  ${have_nst}
+	GOA MC plugin...............:  ${have_goa}
 	Salut E-D-S support.........:  ${with_eds}
 	Exp. Call channel handler...:  ${have_call}
 	Exp. Call log support.......:  ${have_call_logs}
diff --git a/goa-mc-plugin/Makefile.am b/goa-mc-plugin/Makefile.am
new file mode 100644
index 0000000..18fc9ea
--- /dev/null
+++ b/goa-mc-plugin/Makefile.am
@@ -0,0 +1,18 @@
+AM_CPPFLAGS = \
+        $(GOA_CFLAGS)
+
+pluginsdir = $(MISSION_CONTROL_PLUGINS_DIR)
+plugins_LTLIBRARIES = \
+        mcp-account-manager-goa.la
+
+mcp_account_manager_goa_la_SOURCES = \
+        mission-control-plugin.c \
+        mcp-account-manager-goa.c mcp-account-manager-goa.h \
+	$(NULL)
+
+mcp_account_manager_goa_la_LIBADD = \
+        $(GOA_LIBS)
+
+mcp_account_manager_goa_la_LDFLAGS = \
+        -module \
+        -avoid-version
diff --git a/goa-mc-plugin/mcp-account-manager-goa.c b/goa-mc-plugin/mcp-account-manager-goa.c
new file mode 100644
index 0000000..b0b86c5
--- /dev/null
+++ b/goa-mc-plugin/mcp-account-manager-goa.c
@@ -0,0 +1,471 @@
+/*
+ * mcp-account-manager-goa.c
+ *
+ * McpAccountManagerGoa - a Mission Control plugin to expose GNOME Online
+ * Accounts with chat capabilities (e.g. Facebook) to Mission Control
+ *
+ * Copyright (C) 2010-2011 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *    Danielle Madeley <danielle madeley collabora co uk>
+ */
+
+#include <glib/gi18n.h>
+
+#include <telepathy-glib/util.h>
+
+#define GOA_API_IS_SUBJECT_TO_CHANGE /* awesome! */
+#include <goa/goa.h>
+
+#include "mcp-account-manager-goa.h"
+
+#define DEBUG g_debug
+#define GET_PRIVATE(self) (((McpAccountManagerGoa *) self)->priv)
+#define DECLARE_GASYNC_CALLBACK(name) \
+  static void name (GObject *, GAsyncResult *, gpointer);
+
+#define PLUGIN_NAME "goa"
+#define PLUGIN_PRIORITY (MCP_ACCOUNT_STORAGE_PLUGIN_PRIO_KEYRING + 10)
+#define PLUGIN_DESCRIPTION "Provide Telepathy Accounts from GOA"
+#define PLUGIN_PROVIDER "org.gnome.OnlineAccounts"
+
+static void account_storage_iface_init (McpAccountStorageIface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (McpAccountManagerGoa,
+    mcp_account_manager_goa,
+    G_TYPE_OBJECT,
+    G_IMPLEMENT_INTERFACE (MCP_TYPE_ACCOUNT_STORAGE,
+      account_storage_iface_init))
+
+struct _McpAccountManagerGoaPrivate
+{
+  gboolean ready;
+
+  GoaClient *client;
+  GHashTable *accounts; /* string -> GoaAccount */
+};
+
+
+static void
+mcp_account_manager_goa_dispose (GObject *self)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+
+  tp_clear_object (&priv->client);
+
+  G_OBJECT_CLASS (mcp_account_manager_goa_parent_class)->dispose (self);
+}
+
+
+static void
+mcp_account_manager_goa_finalize (GObject *self)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+
+  g_hash_table_destroy (priv->accounts);
+
+  G_OBJECT_CLASS (mcp_account_manager_goa_parent_class)->finalize (self);
+}
+
+
+static void
+mcp_account_manager_goa_class_init (McpAccountManagerGoaClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->dispose = mcp_account_manager_goa_dispose;
+  gobject_class->finalize = mcp_account_manager_goa_finalize;
+
+  g_type_class_add_private (gobject_class,
+      sizeof (McpAccountManagerGoaPrivate));
+}
+
+
+// static void
+// _enable_chat_toggled (GConfClient *client,
+//     guint cnxn_id,
+//     GConfEntry *entry,
+//     gpointer user_data)
+// {
+//   McpAccountStorage *self = MCP_ACCOUNT_STORAGE (user_data);
+//   McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+//   gboolean enabled = gconf_value_get_bool (gconf_entry_get_value (entry));
+// 
+//   DEBUG ("%s: %s", G_STRFUNC, enabled ? "enabled" : "disabled");
+// 
+//   if (priv->ready && priv->facebook_available)
+//     {
+//       DEBUG ("Emitting toggled signal");
+// 
+//       g_signal_emit_by_name (self, "toggled", FACEBOOK_ACCOUNT_NAME, enabled);
+//     }
+// }
+
+
+static GHashTable *
+get_tp_parameters (GoaAccount *account)
+{
+  GHashTable *params = g_hash_table_new_full (g_str_hash, g_str_equal,
+      NULL, g_free);
+  const char *type = goa_account_get_provider_type (account);
+
+#define PARAM(key, value) g_hash_table_insert (params, key, g_strdup (value));
+
+ // { "param-account", "chat.facebook.com" },
+ // { "param-server", "chat.facebook.com" },
+
+  if (!tp_strdiff (type, "google"))
+    {
+      PARAM ("manager", "gabble");
+      PARAM ("protocol", "jabber");
+      PARAM ("Icon", "im-google-talk");
+      PARAM ("Service", "google-talk");
+
+      PARAM ("param-account", goa_account_get_identity (account));
+      PARAM ("param-server", "talk.google.com");
+    }
+  else
+    {
+      /* unknown account type */
+      g_hash_table_destroy (params);
+      return NULL;
+    }
+
+  /* generic properties */
+  PARAM ("DisplayName", goa_account_get_presentation_identity (account));
+  PARAM ("ConnectAutomatically", "true");
+
+#undef PARAM
+
+  return params;
+}
+
+
+static char *
+get_tp_account_name (GoaAccount *account)
+{
+  GHashTable *params = get_tp_parameters (account);
+  const char *type = goa_account_get_provider_type (account);
+  const char *id = goa_account_get_id (account);
+  char *name;
+
+  if (params == NULL)
+    return NULL;
+
+  name = g_strdup_printf ("%s/%s/goa_%s_%s",
+      (char *) g_hash_table_lookup (params, "manager"),
+      (char *) g_hash_table_lookup (params, "protocol"),
+      type, id);
+
+  g_hash_table_destroy (params);
+
+  return name;
+}
+
+
+static void
+_new_account (McpAccountManagerGoa *self,
+    GoaAccount *account)
+{
+  char *account_name = get_tp_account_name (account);
+
+  if (account_name == NULL)
+    return;
+
+  /* @account_name now is owned by the hash table */
+  g_hash_table_insert (self->priv->accounts, account_name,
+      g_object_ref (account));
+
+  if (self->priv->ready)
+    g_signal_emit_by_name (self, "created", account_name);
+}
+
+DECLARE_GASYNC_CALLBACK (_goa_client_new_cb);
+
+static void
+mcp_account_manager_goa_init (McpAccountManagerGoa *self)
+{
+  DEBUG ("GOA MC plugin initialised");
+
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+      MCP_TYPE_ACCOUNT_MANAGER_GOA, McpAccountManagerGoaPrivate);
+
+  self->priv->accounts = g_hash_table_new_full (g_str_hash, g_str_equal,
+      g_free, g_object_unref);
+
+  goa_client_new (NULL, _goa_client_new_cb, self);
+}
+
+
+static void
+_goa_client_new_cb (GObject *obj,
+    GAsyncResult *result,
+    gpointer user_data)
+{
+  McpAccountManagerGoa *self = user_data;
+  GoaClient *client;
+  GList *accounts, *ptr;
+  GError *error = NULL;
+
+  self->priv->client = goa_client_new_finish (result, &error);
+
+  if (error != NULL)
+    {
+      DEBUG ("Failed to connect to GOA");
+      return;
+    }
+
+  accounts = goa_client_get_accounts (self->priv->client);
+
+  for (ptr = accounts; ptr != NULL; ptr = ptr->next)
+    {
+      GoaAccount *account = goa_object_get_account (ptr->data);
+
+      _new_account (self, account);
+    }
+
+  g_list_free_full (accounts, g_object_unref);
+
+  /* FIXME: track accounts created/destroyed */
+}
+
+
+static GList *
+mcp_account_manager_goa_list (const McpAccountStorage *self,
+    const McpAccountManager *am)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+  GList *accounts = NULL;
+  GHashTableIter iter;
+  gpointer key;
+
+  DEBUG (G_STRFUNC);
+
+  g_hash_table_iter_init (&iter, priv->accounts);
+  while (g_hash_table_iter_next (&iter, &key, NULL))
+    accounts = g_list_prepend (accounts, g_strdup (key));
+
+  return accounts;
+}
+
+
+static void
+get_enabled (const McpAccountStorage *self,
+    const McpAccountManager *am,
+    const gchar *acct)
+{
+  // McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+  // GError *error = NULL;
+  // gboolean enabled;
+  // const char *value;
+
+  // enabled = gconf_client_get_bool (priv->gconf,
+  //     BISHO_FB_GCONF_ENABLE_CHAT_KEY, &error);
+  // if (error != NULL)
+  //   {
+  //     g_warning ("Unabled to get value for %s/Enabled from GConf: %s",
+  //         acct, error->message);
+  //     g_clear_error (&error);
+  //   }
+
+  // value = enabled ? "true" : "false";
+
+  // DEBUG ("Facebook Chat enabled = %s", value);
+
+  mcp_account_manager_set_value (am, acct, "Enabled", "true");
+}
+
+
+static gboolean
+mcp_account_manager_goa_get (const McpAccountStorage *self,
+    const McpAccountManager *am,
+    const gchar *acct,
+    const gchar *key)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+  GoaAccount *account;
+
+  DEBUG ("%s: %s, %s", G_STRFUNC, acct, key);
+
+  account = g_hash_table_lookup (priv->accounts, acct);
+
+  if (account == NULL)
+    return FALSE;
+
+  if (key == NULL)
+    {
+      /* load all keys */
+      GHashTable *params = get_tp_parameters (account);
+      GHashTableIter iter;
+      gpointer key, value;
+
+      g_hash_table_iter_init (&iter, params);
+      while (g_hash_table_iter_next (&iter, &key, &value))
+        mcp_account_manager_set_value (am, acct, key, value);
+
+      g_hash_table_destroy (params);
+
+      get_enabled (self, am, acct);
+    }
+  else if (!tp_strdiff (key, "Enabled"))
+    {
+      get_enabled (self, am, acct);
+    }
+  else
+    {
+      /* get a specific key */
+      GHashTable *params = get_tp_parameters (account);
+
+      mcp_account_manager_set_value (am, acct, key,
+          g_hash_table_lookup (params, key));
+
+      g_hash_table_destroy (params);
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+mcp_account_manager_goa_set (const McpAccountStorage *self,
+    const McpAccountManager *am,
+    const gchar *acct,
+    const gchar *key,
+    const gchar *val)
+{
+  GError *error = NULL;
+
+  DEBUG ("%s: (%s, %s, %s)", G_STRFUNC, acct, key, val);
+
+  // if (!tp_strdiff (acct, FACEBOOK_ACCOUNT_NAME))
+  //   {
+  //     if (!tp_strdiff (key, "Enabled"))
+  //       {
+  //         gboolean enabled = !tp_strdiff (val, "true");
+
+  //         DEBUG ("set Enabled to %s", enabled ? "enabled" : "disabled");
+
+  //         gconf_client_set_bool (priv->gconf, BISHO_FB_GCONF_ENABLE_CHAT_KEY,
+  //             enabled, &error);
+  //         if (error != NULL)
+  //           {
+  //             g_warning ("Unable to save %s/Enable state in GConf: %s",
+  //                 acct, error->message);
+  //             g_clear_error (&error);
+  //           }
+
+  //         return TRUE;
+  //       }
+  //     else
+  //       /* pretend we saved everything else */
+  //       return TRUE;
+  //   }
+  // else
+  //   {
+  //     return FALSE;
+  //   }
+}
+
+
+static gboolean
+mcp_account_manager_goa_delete (const McpAccountStorage *self,
+    const McpAccountManager *am,
+    const gchar *acct,
+    const gchar *key)
+{
+  DEBUG ("%s: (%s, %s)", G_STRFUNC, acct, key);
+
+//  if (!tp_strdiff (acct, FACEBOOK_ACCOUNT_NAME))
+//    {
+//      if (!tp_strdiff (key, "Enabled"))
+//        return TRUE;
+//      else
+//        /* pretend we deleted everything else */
+//        return TRUE;
+//    }
+//  else
+//    {
+//      return FALSE;
+//    }
+}
+
+
+static gboolean
+mcp_account_manager_goa_commit (const McpAccountStorage *self,
+    const McpAccountManager *am)
+{
+  DEBUG ("%s", G_STRFUNC);
+
+  return TRUE;
+}
+
+
+static void
+mcp_account_manager_goa_ready (const McpAccountStorage *self,
+    const McpAccountManager *am)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+
+  priv->ready = TRUE;
+}
+
+
+static guint
+mcp_account_manager_goa_get_restrictions (const McpAccountStorage *self,
+    const gchar *account)
+{
+  return TP_STORAGE_RESTRICTION_FLAG_CANNOT_SET_PARAMETERS |
+         TP_STORAGE_RESTRICTION_FLAG_CANNOT_SET_SERVICE;
+}
+
+
+static void
+mcp_account_manager_goa_get_identifier (const McpAccountStorage *self,
+    const gchar *acct,
+    GValue *identifier)
+{
+  McpAccountManagerGoaPrivate *priv = GET_PRIVATE (self);
+  GoaAccount *account;
+
+  account = g_hash_table_lookup (priv->accounts, acct);
+
+  g_return_if_fail (account != NULL);
+
+  g_value_init (identifier, G_TYPE_STRING);
+  g_value_set_string (identifier, goa_account_get_id (account));
+}
+
+
+static void
+account_storage_iface_init (McpAccountStorageIface *iface)
+{
+  mcp_account_storage_iface_set_name (iface, PLUGIN_NAME);
+  mcp_account_storage_iface_set_desc (iface, PLUGIN_DESCRIPTION);
+  mcp_account_storage_iface_set_priority (iface, PLUGIN_PRIORITY);
+  mcp_account_storage_iface_set_provider (iface, PLUGIN_PROVIDER);
+
+#define IMPLEMENT(x) mcp_account_storage_iface_implement_##x(iface, \
+    mcp_account_manager_goa_##x)
+  IMPLEMENT (get);
+  IMPLEMENT (list);
+  IMPLEMENT (set);
+  IMPLEMENT (delete);
+  IMPLEMENT (commit);
+  IMPLEMENT (ready);
+  IMPLEMENT (get_restrictions);
+  IMPLEMENT (get_identifier);
+#undef IMPLEMENT
+}
diff --git a/goa-mc-plugin/mcp-account-manager-goa.h b/goa-mc-plugin/mcp-account-manager-goa.h
new file mode 100644
index 0000000..bc4cfde
--- /dev/null
+++ b/goa-mc-plugin/mcp-account-manager-goa.h
@@ -0,0 +1,60 @@
+/*
+ * mcp-account-manager-goa.h
+ *
+ * McpAccountManagerGoa - a Mission Control plugin to expose GNOME Online
+ * Accounts with chat capabilities (e.g. Facebook) to Mission Control
+ *
+ * Copyright (C) 2010-2011 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *    Danielle Madeley <danielle madeley collabora co uk>
+ */
+
+#include <mission-control-plugins/mission-control-plugins.h>
+
+#ifndef __MCP_ACCOUNT_MANAGER_GOA_H__
+#define __MCP_ACCOUNT_MANAGER_GOA_H__
+
+G_BEGIN_DECLS
+
+#define MCP_TYPE_ACCOUNT_MANAGER_GOA	(mcp_account_manager_goa_get_type ())
+#define MCP_ACCOUNT_MANAGER_GOA(obj)	(G_TYPE_CHECK_INSTANCE_CAST ((obj), MCP_TYPE_ACCOUNT_MANAGER_GOA, McpAccountManagerGoa))
+#define MCP_ACCOUNT_MANAGER_GOA_CLASS(obj)	(G_TYPE_CHECK_CLASS_CAST ((obj), MCP_TYPE_ACCOUNT_MANAGER_GOA, McpAccountManagerGoaClass))
+#define MCP_IS_ACCOUNT_MANAGER_GOA(obj)	(G_TYPE_CHECK_INSTANCE_TYPE ((obj), MCP_TYPE_ACCOUNT_MANAGER_GOA))
+#define MCP_IS_ACCOUNT_MANAGER_GOA_CLASS(obj)	(G_TYPE_CHECK_CLASS_TYPE ((obj), MCP_TYPE_ACCOUNT_MANAGER_GOA))
+#define MCP_ACCOUNT_MANAGER_GOA_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), MCP_TYPE_ACCOUNT_MANAGER_GOA, McpAccountManagerGoaClass))
+
+typedef struct _McpAccountManagerGoa McpAccountManagerGoa;
+typedef struct _McpAccountManagerGoaClass McpAccountManagerGoaClass;
+typedef struct _McpAccountManagerGoaPrivate McpAccountManagerGoaPrivate;
+
+struct _McpAccountManagerGoa
+{
+  GObject parent;
+
+  McpAccountManagerGoaPrivate *priv;
+};
+
+struct _McpAccountManagerGoaClass
+{
+  GObjectClass parent_class;
+};
+
+GType mcp_account_manager_goa_get_type (void);
+
+G_END_DECLS
+
+#endif
diff --git a/goa-mc-plugin/mission-control-plugin.c b/goa-mc-plugin/mission-control-plugin.c
new file mode 100644
index 0000000..4065305
--- /dev/null
+++ b/goa-mc-plugin/mission-control-plugin.c
@@ -0,0 +1,48 @@
+/*
+ * mission-control-plugin.c
+ *
+ * A Mission Control plugin to expose GNOME Online Accounts with chat
+ * capabilities (e.g. Facebook) to Mission Control
+ *
+ * Copyright (C) 2010-2011 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *    Danielle Madeley <danielle madeley collabora co uk>
+ */
+
+#include <mission-control-plugins/mission-control-plugins.h>
+
+#include "mcp-account-manager-goa.h"
+
+GObject *
+mcp_plugin_ref_nth_object (guint n)
+{
+  static void *plugin_0 = NULL;
+
+  switch (n)
+    {
+      case 0:
+        if (plugin_0 == NULL)
+          plugin_0 = g_object_new (MCP_TYPE_ACCOUNT_MANAGER_GOA, NULL);
+        else
+          g_object_ref (plugin_0);
+
+        return plugin_0;
+
+      default:
+        return NULL;
+    }
+}
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