2 * Copyright © 2011 William Hua
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the licence, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * Author: William Hua <william@attente.ca>
24 #include "gsettingsbackendinternal.h"
25 #include "gsimplepermission.h"
26 #include "giomodule.h"
30 #import <Foundation/Foundation.h>
34 #define G_NEXTSTEP_SETTINGS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), g_nextstep_settings_backend_get_type (), GNextstepSettingsBackend))
38 typedef struct _GNextstepSettingsBackend GNextstepSettingsBackend;
39 typedef GSettingsBackendClass GNextstepSettingsBackendClass;
43 struct _GNextstepSettingsBackend
45 GSettingsBackend parent_instance;
48 NSUserDefaults *user_defaults;
53 G_DEFINE_TYPE_WITH_CODE (GNextstepSettingsBackend,
54 g_nextstep_settings_backend,
55 G_TYPE_SETTINGS_BACKEND,
56 g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
57 g_define_type_id, "nextstep", 90));
61 static void g_nextstep_settings_backend_finalize (GObject *backend);
63 static GVariant * g_nextstep_settings_backend_read (GSettingsBackend *backend,
65 const GVariantType *expected_type,
66 gboolean default_value);
68 static gboolean g_nextstep_settings_backend_get_writable (GSettingsBackend *backend,
71 static gboolean g_nextstep_settings_backend_write (GSettingsBackend *backend,
76 static gboolean g_nextstep_settings_backend_write_tree (GSettingsBackend *backend,
80 static void g_nextstep_settings_backend_reset (GSettingsBackend *backend,
84 static void g_nextstep_settings_backend_subscribe (GSettingsBackend *backend,
87 static void g_nextstep_settings_backend_unsubscribe (GSettingsBackend *backend,
90 static void g_nextstep_settings_backend_sync (GSettingsBackend *backend);
92 static GPermission * g_nextstep_settings_backend_get_permission (GSettingsBackend *backend,
95 static gboolean g_nextstep_settings_backend_write_pair (gpointer name,
99 static GVariant * g_nextstep_settings_backend_get_g_variant (id object,
100 const GVariantType *type);
102 static id g_nextstep_settings_backend_get_ns_object (GVariant *variant);
107 g_nextstep_settings_backend_class_init (GNextstepSettingsBackendClass *class)
109 G_OBJECT_CLASS (class)->finalize = g_nextstep_settings_backend_finalize;
110 class->read = g_nextstep_settings_backend_read;
111 class->get_writable = g_nextstep_settings_backend_get_writable;
112 class->write = g_nextstep_settings_backend_write;
113 class->write_tree = g_nextstep_settings_backend_write_tree;
114 class->reset = g_nextstep_settings_backend_reset;
115 class->subscribe = g_nextstep_settings_backend_subscribe;
116 class->unsubscribe = g_nextstep_settings_backend_unsubscribe;
117 class->sync = g_nextstep_settings_backend_sync;
118 class->get_permission = g_nextstep_settings_backend_get_permission;
124 g_nextstep_settings_backend_init (GNextstepSettingsBackend *self)
126 NSAutoreleasePool *pool;
128 pool = [[NSAutoreleasePool alloc] init];
130 self->user_defaults = [[NSUserDefaults standardUserDefaults] retain];
138 g_nextstep_settings_backend_finalize (GObject *self)
140 NSAutoreleasePool *pool;
142 pool = [[NSAutoreleasePool alloc] init];
144 [G_NEXTSTEP_SETTINGS_BACKEND (self)->user_defaults release];
148 G_OBJECT_CLASS (g_nextstep_settings_backend_parent_class)->finalize (self);
154 g_nextstep_settings_backend_read (GSettingsBackend *backend,
156 const GVariantType *expected_type,
157 gboolean default_value)
159 NSAutoreleasePool *pool;
167 pool = [[NSAutoreleasePool alloc] init];
168 name = [NSString stringWithUTF8String:key];
169 value = [G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults objectForKey:name];
170 variant = g_nextstep_settings_backend_get_g_variant (value, expected_type);
180 g_nextstep_settings_backend_get_writable (GSettingsBackend *backend,
189 g_nextstep_settings_backend_write (GSettingsBackend *backend,
194 NSAutoreleasePool *pool;
196 pool = [[NSAutoreleasePool alloc] init];
198 g_nextstep_settings_backend_write_pair ((gpointer) key, value, backend);
199 g_settings_backend_changed (backend, key, origin_tag);
209 g_nextstep_settings_backend_write_tree (GSettingsBackend *backend,
213 NSAutoreleasePool *pool;
215 pool = [[NSAutoreleasePool alloc] init];
217 g_tree_foreach (tree, g_nextstep_settings_backend_write_pair, backend);
218 g_settings_backend_changed_tree (backend, tree, origin_tag);
228 g_nextstep_settings_backend_reset (GSettingsBackend *backend,
232 NSAutoreleasePool *pool;
233 NSUserDefaults *user_defaults;
238 pool = [[NSAutoreleasePool alloc] init];
239 user_defaults = G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults;
240 name = [NSString stringWithUTF8String:key];
241 value = [user_defaults objectForKey:name];
243 [user_defaults removeObjectForKey:name];
245 default_value = [user_defaults objectForKey:name];
247 if (default_value != value && ![default_value isEqual:value])
248 g_settings_backend_changed (backend, key, origin_tag);
256 g_nextstep_settings_backend_subscribe (GSettingsBackend *backend,
264 g_nextstep_settings_backend_unsubscribe (GSettingsBackend *backend,
272 g_nextstep_settings_backend_sync (GSettingsBackend *backend)
274 NSAutoreleasePool *pool;
276 pool = [[NSAutoreleasePool alloc] init];
278 [G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults synchronize];
286 g_nextstep_settings_backend_get_permission (GSettingsBackend *backend,
289 return g_simple_permission_new (TRUE);
295 g_nextstep_settings_backend_write_pair (gpointer name,
299 GNextstepSettingsBackend *backend;
303 backend = G_NEXTSTEP_SETTINGS_BACKEND (data);
304 key = [NSString stringWithUTF8String:name];
305 object = g_nextstep_settings_backend_get_ns_object (value);
307 [backend->user_defaults setObject:object forKey:key];
315 g_nextstep_settings_backend_get_g_variant (id object,
316 const GVariantType *type)
318 if ([object isKindOfClass:[NSData class]])
319 return g_variant_parse (type, [[[[NSString alloc] initWithData:object encoding:NSUTF8StringEncoding] autorelease] UTF8String], NULL, NULL, NULL);
320 else if ([object isKindOfClass:[NSNumber class]])
322 if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
323 return g_variant_new_boolean ([object boolValue]);
324 else if (g_variant_type_equal (type, G_VARIANT_TYPE_BYTE))
325 return g_variant_new_byte ([object unsignedCharValue]);
326 else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT16))
327 return g_variant_new_int16 ([object shortValue]);
328 else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT16))
329 return g_variant_new_uint16 ([object unsignedShortValue]);
330 else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
331 return g_variant_new_int32 ([object longValue]);
332 else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT32))
333 return g_variant_new_uint32 ([object unsignedLongValue]);
334 else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT64))
335 return g_variant_new_int64 ([object longLongValue]);
336 else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT64))
337 return g_variant_new_uint64 ([object unsignedLongLongValue]);
338 else if (g_variant_type_equal (type, G_VARIANT_TYPE_HANDLE))
339 return g_variant_new_handle ([object longValue]);
340 else if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
341 return g_variant_new_double ([object doubleValue]);
343 else if ([object isKindOfClass:[NSString class]])
347 string = [object UTF8String];
349 if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
350 return g_variant_new_string (string);
351 else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
352 return g_variant_is_object_path (string) ?
353 g_variant_new_object_path (string) : NULL;
354 else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
355 return g_variant_is_signature (string) ?
356 g_variant_new_signature (string) : NULL;
358 else if ([object isKindOfClass:[NSDictionary class]])
360 if (g_variant_type_is_subtype_of (type, G_VARIANT_TYPE ("a{s*}")))
362 const GVariantType *value_type;
363 GVariantBuilder builder;
366 value_type = g_variant_type_value (g_variant_type_element (type));
368 g_variant_builder_init (&builder, type);
377 name = g_variant_new_string ([key UTF8String]);
378 value = [object objectForKey:key];
379 variant = g_nextstep_settings_backend_get_g_variant (value, value_type);
383 g_variant_builder_clear (&builder);
388 entry = g_variant_new_dict_entry (name, variant);
389 g_variant_builder_add_value (&builder, entry);
392 return g_variant_builder_end (&builder);
395 else if ([object isKindOfClass:[NSArray class]])
397 if (g_variant_type_is_subtype_of (type, G_VARIANT_TYPE_ARRAY))
399 const GVariantType *value_type;
400 GVariantBuilder builder;
403 value_type = g_variant_type_element (type);
404 g_variant_builder_init (&builder, type);
406 for (value in object)
408 GVariant *variant = g_nextstep_settings_backend_get_g_variant (value, value_type);
412 g_variant_builder_clear (&builder);
417 g_variant_builder_add_value (&builder, variant);
420 return g_variant_builder_end (&builder);
430 g_nextstep_settings_backend_get_ns_object (GVariant *variant)
434 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_BOOLEAN))
435 return [NSNumber numberWithBool:g_variant_get_boolean (variant)];
436 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_BYTE))
437 return [NSNumber numberWithUnsignedChar:g_variant_get_byte (variant)];
438 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT16))
439 return [NSNumber numberWithShort:g_variant_get_int16 (variant)];
440 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT16))
441 return [NSNumber numberWithUnsignedShort:g_variant_get_uint16 (variant)];
442 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT32))
443 return [NSNumber numberWithLong:g_variant_get_int32 (variant)];
444 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT32))
445 return [NSNumber numberWithUnsignedLong:g_variant_get_uint32 (variant)];
446 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_INT64))
447 return [NSNumber numberWithLongLong:g_variant_get_int64 (variant)];
448 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_UINT64))
449 return [NSNumber numberWithUnsignedLongLong:g_variant_get_uint64 (variant)];
450 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_HANDLE))
451 return [NSNumber numberWithLong:g_variant_get_handle (variant)];
452 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_DOUBLE))
453 return [NSNumber numberWithDouble:g_variant_get_double (variant)];
454 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_STRING))
455 return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
456 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_OBJECT_PATH))
457 return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
458 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_SIGNATURE))
459 return [NSString stringWithUTF8String:g_variant_get_string (variant, NULL)];
460 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE ("a{s*}")))
462 NSMutableDictionary *dictionary;
467 dictionary = [NSMutableDictionary dictionaryWithCapacity:g_variant_iter_init (&iter, variant)];
469 while (g_variant_iter_loop (&iter, "{s*}", &name, &value))
474 key = [NSString stringWithUTF8String:g_variant_get_string (name, NULL)];
475 object = g_nextstep_settings_backend_get_ns_object (value);
477 [dictionary setObject:object forKey:key];
482 else if (g_variant_is_of_type (variant, G_VARIANT_TYPE_ARRAY))
484 NSMutableArray *array;
488 array = [NSMutableArray arrayWithCapacity:g_variant_iter_init (&iter, variant)];
490 while ((value = g_variant_iter_next_value (&iter)) != NULL)
491 [array addObject:g_nextstep_settings_backend_get_ns_object (value)];
496 return [[NSString stringWithUTF8String:g_variant_print (variant, TRUE)] dataUsingEncoding:NSUTF8StringEncoding];