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Diffstat (limited to 'src/egg-unique.c')
| -rw-r--r-- | src/egg-unique.c | 151 |
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); +} + |