1 files changed, 151 insertions, 0 deletions
diff --git a/src/egg-unique.c b/src/egg-unique.c
new file mode 100644
index 0000000..41a5182
--- /dev/null
+++ b/src/egg-unique.c
@@ -0,0 +1,151 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 Richard Hughes <[email protected]>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <glib.h>
+#include <unique/unique.h>
+
+#include "egg-unique.h"
+#include "egg-debug.h"
+
+static void egg_unique_finalize (GObject *object);
+
+#define EGG_UNIQUE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), EGG_UNIQUE_TYPE, EggUniquePrivate))
+
+struct EggUniquePrivate
+{
+ UniqueApp *uniqueapp;
+};
+
+enum {
+ ACTIVATED,
+ LAST_SIGNAL
+};
+
+static guint signals [LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE (EggUnique, egg_unique, G_TYPE_OBJECT)
+
+/**
+ * egg_unique_message_cb:
+ **/
+static void
+egg_unique_message_cb (UniqueApp *app, UniqueCommand command, UniqueMessageData *message_data, guint time_s, EggUnique *egg_unique)
+{
+ g_return_if_fail (EGG_IS_UNIQUE (egg_unique));
+ if (command == UNIQUE_ACTIVATE)
+ g_signal_emit (egg_unique, signals [ACTIVATED], 0);
+}
+
+/**
+ * egg_unique_assign:
+ * @egg_unique: This class instance
+ * @service: The service name
+ * Return value: %FALSE if we should exit as another instance is running
+ **/
+gboolean
+egg_unique_assign (EggUnique *egg_unique, const gchar *service)
+{
+ g_return_val_if_fail (EGG_IS_UNIQUE (egg_unique), FALSE);
+ g_return_val_if_fail (service != NULL, FALSE);
+
+ if (egg_unique->priv->uniqueapp != NULL) {
+ g_warning ("already assigned!");
+ return FALSE;
+ }
+
+ /* check to see if the user has another instance open */
+ egg_unique->priv->uniqueapp = unique_app_new (service, NULL);
+ if (unique_app_is_running (egg_unique->priv->uniqueapp)) {
+ egg_debug ("You have another instance running. This program will now close");
+ unique_app_send_message (egg_unique->priv->uniqueapp, UNIQUE_ACTIVATE, NULL);
+ return FALSE;
+ }
+
+ /* Listen for messages from another instances */
+ g_signal_connect (G_OBJECT (egg_unique->priv->uniqueapp), "message-received",
+ G_CALLBACK (egg_unique_message_cb), egg_unique);
+ return TRUE;
+}
+
+/**
+ * egg_unique_class_init:
+ * @egg_unique: This class instance
+ **/
+static void
+egg_unique_class_init (EggUniqueClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ object_class->finalize = egg_unique_finalize;
+ g_type_class_add_private (klass, sizeof (EggUniquePrivate));
+
+ signals [ACTIVATED] =
+ g_signal_new ("activated",
+ G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EggUniqueClass, activated),
+ NULL, NULL, g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+}
+
+/**
+ * egg_unique_init:
+ * @egg_unique: This class instance
+ **/
+static void
+egg_unique_init (EggUnique *egg_unique)
+{
+ egg_unique->priv = EGG_UNIQUE_GET_PRIVATE (egg_unique);
+ egg_unique->priv->uniqueapp = NULL;
+}
+
+/**
+ * egg_unique_finalize:
+ * @object: This class instance
+ **/
+static void
+egg_unique_finalize (GObject *object)
+{
+ EggUnique *egg_unique;
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (EGG_IS_UNIQUE (object));
+
+ egg_unique = EGG_UNIQUE_OBJECT (object);
+ egg_unique->priv = EGG_UNIQUE_GET_PRIVATE (egg_unique);
+
+ if (egg_unique->priv->uniqueapp != NULL)
+ g_object_unref (egg_unique->priv->uniqueapp);
+ G_OBJECT_CLASS (egg_unique_parent_class)->finalize (object);
+}
+
+/**
+ * egg_unique_new:
+ * Return value: new class instance.
+ **/
+EggUnique *
+egg_unique_new (void)
+{
+ EggUnique *egg_unique;
+ egg_unique = g_object_new (EGG_UNIQUE_TYPE, NULL);
+ return EGG_UNIQUE_OBJECT (egg_unique);
+}
+