/*
* Copyright © 2011 William Hua
*
* 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/>.
*
* Author: William Hua <william@attente.ca>
*/
#include "config.h"
#include "gsettingsbackendinternal.h"
#include "gsimplepermission.h"
#include "giomodule.h"
#import <Foundation/Foundation.h>
GType g_nextstep_settings_backend_get_type (void);
#define G_NEXTSTEP_SETTINGS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), g_nextstep_settings_backend_get_type (), GNextstepSettingsBackend))
typedef struct _GNextstepSettingsBackend GNextstepSettingsBackend;
typedef GSettingsBackendClass GNextstepSettingsBackendClass;
struct _GNextstepSettingsBackend
{
GSettingsBackend parent_instance;
/*< private >*/
NSUserDefaults *user_defaults;
GMutex mutex;
};
G_DEFINE_TYPE_WITH_CODE (GNextstepSettingsBackend,
g_nextstep_settings_backend,
G_TYPE_SETTINGS_BACKEND,
g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
g_define_type_id, "nextstep", 90));
static void g_nextstep_settings_backend_finalize (GObject *backend);
static GVariant * g_nextstep_settings_backend_read (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type,
gboolean default_value);
static gboolean g_nextstep_settings_backend_get_writable (GSettingsBackend *backend,
const gchar *key);
static gboolean g_nextstep_settings_backend_write (GSettingsBackend *backend,
const gchar *key,
GVariant *value,
gpointer origin_tag);
static gboolean g_nextstep_settings_backend_write_tree (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag);
static void g_nextstep_settings_backend_reset (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag);
static void g_nextstep_settings_backend_subscribe (GSettingsBackend *backend,
const gchar *name);
static void g_nextstep_settings_backend_unsubscribe (GSettingsBackend *backend,
const gchar *name);
static void g_nextstep_settings_backend_sync (GSettingsBackend *backend);
static GPermission * g_nextstep_settings_backend_get_permission (GSettingsBackend *backend,
const gchar *path);
static gboolean g_nextstep_settings_backend_write_pair (gpointer name,
gpointer value,
gpointer data);
static GVariant * g_nextstep_settings_backend_get_g_variant (id object,
const GVariantType *type);
static id g_nextstep_settings_backend_get_ns_object (GVariant *variant);
static void
g_nextstep_settings_backend_class_init (GNextstepSettingsBackendClass *class)
{
G_OBJECT_CLASS (class)->finalize = g_nextstep_settings_backend_finalize;
class->read = g_nextstep_settings_backend_read;
class->get_writable = g_nextstep_settings_backend_get_writable;
class->write = g_nextstep_settings_backend_write;
class->write_tree = g_nextstep_settings_backend_write_tree;
class->reset = g_nextstep_settings_backend_reset;
class->subscribe = g_nextstep_settings_backend_subscribe;
class->unsubscribe = g_nextstep_settings_backend_unsubscribe;
class->sync = g_nextstep_settings_backend_sync;
class->get_permission = g_nextstep_settings_backend_get_permission;
}
static void
g_nextstep_settings_backend_init (GNextstepSettingsBackend *self)
{
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
self->user_defaults = [[NSUserDefaults standardUserDefaults] retain];
g_mutex_init (&self->mutex);
[pool drain];
}
static void
g_nextstep_settings_backend_finalize (GObject *self)
{
GNextstepSettingsBackend *backend = G_NEXTSTEP_SETTINGS_BACKEND (self);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_mutex_clear (&backend->mutex);
[backend->user_defaults release];
[pool drain];
G_OBJECT_CLASS (g_nextstep_settings_backend_parent_class)->finalize (self);
}
static GVariant *
g_nextstep_settings_backend_read (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type,
gboolean default_value)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
NSString *name;
id value;
GVariant *variant;
if (default_value)
return NULL;
pool = [[NSAutoreleasePool alloc] init];
name = [NSString stringWithUTF8String:key];
g_mutex_lock (&self->mutex);
value = [self->user_defaults objectForKey:name];
g_mutex_unlock (&self->mutex);
variant = g_nextstep_settings_backend_get_g_variant (value, expected_type);
[pool drain];
return variant;
}
static gboolean
g_nextstep_settings_backend_get_writable (GSettingsBackend *backend,
const gchar *key)
{
return TRUE;
}
static gboolean
g_nextstep_settings_backend_write (GSettingsBackend *backend,
const gchar *key,
GVariant *value,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_mutex_lock (&self->mutex);
g_nextstep_settings_backend_write_pair ((gpointer) key, value, self);
g_mutex_unlock (&self->mutex);
g_settings_backend_changed (backend, key, origin_tag);
[pool drain];
return TRUE;
}
static gboolean
g_nextstep_settings_backend_write_tree (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_mutex_lock (&self->mutex);
g_tree_foreach (tree, g_nextstep_settings_backend_write_pair, self);
g_mutex_unlock (&self->mutex);
g_settings_backend_changed_tree (backend, tree, origin_tag);
[pool drain];
return TRUE;
}
static void
g_nextstep_settings_backend_reset (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
NSString *name;
pool = [[NSAutoreleasePool alloc] init];
name = [NSString stringWithUTF8String:key];
g_mutex_lock (&self->mutex);
[self->user_defaults removeObjectForKey:name];
g_mutex_unlock (&self->mutex);
g_settings_backend_changed (backend, key, origin_tag);
[pool drain];
}
static void
g_nextstep_settings_backend_subscribe (GSettingsBackend *backend,
const gchar *name)
{
}
static void
g_nextstep_settings_backend_unsubscribe (GSettingsBackend *backend,
const gchar *name)
{
}
static void
g_nextstep_settings_backend_sync (GSettingsBackend *backend)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_mutex_lock (&self->mutex);
[self->user_defaults synchronize];
g_mutex_unlock (&self->mutex);
[pool drain];
}
static GPermission *
g_nextstep_settings_backend_get_permission (GSettingsBackend *backend,
const gchar *path)
{
return g_simple_permission_new (TRUE);
}
static gboolean
g_nextstep_settings_backend_write_pair (gpointer name,
gpointer value,
gpointer data)
{
GNextstepSettingsBackend *backend = G_NEXTSTEP_SETTINGS_BACKEND (data);
NSString *key;
id object;
key = [NSString stringWithUTF8String:name];
object = g_nextstep_settings_backend_get_ns_object (value);
[backend->user_defaults setObject:object forKey:key];
return FALSE;
}
static GVariant *
g_nextstep_settings_backend_get_g_variant (id object,
const GVariantType *type)
{
if ([object isKindOfClass:[NSData class]])
return g_variant_parse (type, [[[[NSString alloc] initWithData:object encoding:NSUTF8StringEncoding] autorelease] UTF8String], NULL, NULL, NULL);
else if ([object isKindOfClass:[NSNumber class]])
{
if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
return g_variant_new_boolean ([object boolValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_BYTE))
return g_variant_new_byte ([object unsignedCharValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT16))
return g_variant_new_int16 ([object shortValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT16))
return g_variant_new_uint16 ([object unsignedShortValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
return g_variant_new_int32 ([object longValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT32))
return g_variant_new_uint32 ([object unsignedLongValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT64))
return g_variant_new_int64 ([object longLongValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT64))
return g_variant_new_uint64 ([object unsignedLongLongValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_HANDLE))
return g_variant_new_handle ([object longValue]);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
return g_variant_new_double ([object doubleValue]);
}
else if ([object isKindOfClass:[NSString class]])
{
const char *string;
string = [object UTF8String];
if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
return g_variant_new_string (string);
else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
return g_variant_is_object_path (string) ?
g_variant_new_object_path (string) : NULL;
else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
return g_variant_is_signature (string) ?
g_variant_new_signature (string) : NULL;
}
else if ([object isKindOfClass:[NSDictionary class]])
{
if (g_variant_type_is_subtype_of (type, G_VARIANT_TYPE ("a{s*}")))
{
const GVariantType *value_type;
GVariantBuilder builder;
NSString *key;
value_type = g_variant_type_value (g_variant_type_element (type));
g_variant_builder_init (&builder, type);
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
for(key in object)
#else
NSEnumerator *enumerator = [object objectEnumerator];
while((key = [enumerator nextObject]))
#endif
{
GVariant *name;
id value;
GVariant *variant;
GVariant *entry;
name = g_variant_new_string ([key UTF8String]);
value = [object objectForKey:key];
variant = g_nextstep_settings_backend_get_g_variant (value, value_type);
if (variant == NULL)
{
g_variant_builder_clear (&builder);
return NULL;
}
entry = g_variant_new_dict_entry (name, variant);
g_variant_builder_add_value (&builder, entry);
}
return g_variant_builder_end (&builder);
}
}
else if ([object isKindOfClass:[NSArray class]])
{
if (g_variant_type_is_subtype_of (type, G_VARIANT_TYPE_ARRAY))
{
const GVariantType *value_type;
GVariantBuilder builder;
id value;
value_type = g_variant_type_element (type);
g_variant_builder_init (&builder, type);
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
for(value in object)
#else
NSEnumerator *enumerator = [object objectEnumerator];
while((value = [enumerator nextObject]))
#endif
{
GVariant *variant = g_nextstep_settings_backend_get_g_variant (value, value_type);
if (variant == NULL)
{
g_variant_builder_clear (&builder);
return NULL;
}
g_variant_builder_add_value (&builder, variant);
}
return g_variant_builder_end (&builder);
}
}
return NULL;
}
static id
g_nextstep_settings_backend_get_ns_object (GVariant *variant)
{
if (variant == NULL)
return nil;
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_BOOLEAN))
return [NSNumber numberWithBool:g_variant_get_boolean (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_BYTE))
return [NSNumber numberWithUnsignedChar:g_variant_get_byte (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT16))
return [NSNumber numberWithShort:g_variant_get_int16 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT16))
return [NSNumber numberWithUnsignedShort:g_variant_get_uint16 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT32))
return [NSNumber numberWithLong:g_variant_get_int32 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT32))
return [NSNumber numberWithUnsignedLong:g_variant_get_uint32 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT64))
return [NSNumber numberWithLongLong:g_variant_get_int64 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT64))
return [NSNumber numberWithUnsignedLongLong:g_variant_get_uint64 (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_HANDLE))
return [NSNumber numberWithLong:g_variant_get_handle (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_DOUBLE))
return [NSNumber numberWithDouble:g_variant_get_double (variant)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_STRING))
return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_OBJECT_PATH))
return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_SIGNATURE))
return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE ("a{s*}")))
{
NSMutableDictionary *dictionary;
GVariantIter iter;
GVariant *name;
GVariant *value;
dictionary = [NSMutableDictionary dictionaryWithCapacity:g_variant_iter_init (&iter, variant)];
while (g_variant_iter_loop (&iter, "{s*}", &name, &value))
{
NSString *key;
id object;
key = [NSString stringWithUTF8String:g_variant_get_string (name, NULL)];
object = g_nextstep_settings_backend_get_ns_object (value);
[dictionary setObject:object forKey:key];
}
return dictionary;
}
else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_ARRAY))
{
NSMutableArray *array;
GVariantIter iter;
GVariant *value;
array = [NSMutableArray arrayWithCapacity:g_variant_iter_init (&iter, variant)];
while ((value = g_variant_iter_next_value (&iter)) != NULL)
[array addObject:g_nextstep_settings_backend_get_ns_object (value)];
return array;
}
else
return [[NSString stringWithUTF8String:g_variant_print (variant, TRUE)] dataUsingEncoding:NSUTF8StringEncoding];
}