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add 'null' GSettings backend

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This commit is contained in:
Ryan Lortie 2010-04-15 18:22:14 -04:00
parent c2675af4d7
commit 3e36ee3426
3 changed files with 139 additions and 0 deletions
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2
gio/Makefile.am
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@ -81,6 +81,8 @@ gio-marshal.c: gio-marshal.h gio-marshal.list
settings_sources = \
gsettingsbackendinternal.h \
gnullsettingsbackend.h \
gnullsettingsbackend.c \
gsettingsbackend.c
settings_headers = \

107
gio/gnullsettingsbackend.c Normal file
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@ -0,0 +1,107 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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 of the licence, 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include "gnullsettingsbackend.h"
#define G_TYPE_NULL_SETTINGS_BACKEND (g_null_settings_backend_get_type ())
#define G_NULL_SETTINGS_BACKEND(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
G_TYPE_NULL_SETTINGS_BACKEND, \
GNullSettingsBackend))
typedef GSettingsBackendClass GNullSettingsBackendClass;
typedef GSettingsBackend GNullSettingsBackend;
G_DEFINE_TYPE (GNullSettingsBackend,
g_null_settings_backend,
G_TYPE_SETTINGS_BACKEND)
static GVariant *
g_null_settings_backend_read (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type)
{
return NULL;
}
static gboolean
g_null_settings_backend_write (GSettingsBackend *backend,
const gchar *key,
GVariant *value,
gpointer origin_tag)
{
return FALSE;
}
static gboolean
g_null_settings_backend_write_keys (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag)
{
return FALSE;
}
static void
g_null_settings_backend_reset (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag)
{
}
static void
g_null_settings_backend_reset_path (GSettingsBackend *backend,
const gchar *path,
gpointer origin_tag)
{
}
static gboolean
g_null_settings_backend_get_writable (GSettingsBackend *backend,
const gchar *name)
{
return FALSE;
}
static void
g_null_settings_backend_init (GNullSettingsBackend *memory)
{
}
static void
g_null_settings_backend_class_init (GNullSettingsBackendClass *class)
{
GSettingsBackendClass *backend_class = G_SETTINGS_BACKEND_CLASS (class);
backend_class->read = g_null_settings_backend_read;
backend_class->write = g_null_settings_backend_write;
backend_class->write_keys = g_null_settings_backend_write_keys;
backend_class->reset = g_null_settings_backend_reset;
backend_class->reset_path = g_null_settings_backend_reset_path;
backend_class->get_writable = g_null_settings_backend_get_writable;
}
GSettingsBackend *
g_null_settings_backend_new (void)
{
return g_object_new (G_TYPE_NULL_SETTINGS_BACKEND, NULL);
}

30
gio/gnullsettingsbackend.h Normal file
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@ -0,0 +1,30 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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 of the licence, 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __G_NULL_SETTINGS_BACKEND_H__
#define __G_NULL_SETTINGS_BACKEND_H__
#include <gio/gsettingsbackend.h>
G_GNUC_INTERNAL
GSettingsBackend * g_null_settings_backend_new (void);
#endif /* __G_NULL_SETTINGS_BACKEND_H__ */