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Diffstat (limited to 'gcr/gcr-union-collection.c')
| -rw-r--r-- | gcr/gcr-union-collection.c | 340 |
1 files changed, 0 insertions, 340 deletions
diff --git a/gcr/gcr-union-collection.c b/gcr/gcr-union-collection.c deleted file mode 100644 index 459fbcc0..00000000 --- a/gcr/gcr-union-collection.c +++ /dev/null @@ -1,340 +0,0 @@ -/* - * gnome-keyring - * - * Copyright (C) 2011 Collabora Ltd. - * - * This program 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 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - * - * Author: Stef Walter <stefw@collabora.co.uk> - */ - -#include "config.h" - -#include "gcr-collection.h" -#include "gcr-internal.h" -#include "gcr-union-collection.h" - -#include <string.h> - -/** - * SECTION:gcr-union-collection - * @title: GcrUnionCollection - * @short_description: A GcrCollection which combines other collections - * - * An implementation of #GcrCollection, which combines the objects in - * other #GcrCollections. Use gcr_union_collection_add() to add and - * gcr_union_collection_remove() to remove them. - */ - -/** - * GcrUnionCollection: - * - * A union implementation of #GcrCollection. - */ - -/** - * GcrUnionCollectionClass: - * @parent_class: The parent class - * - * The class for #GcrUnionCollection. - */ - -struct _GcrUnionCollectionPrivate { - GHashTable *items; - GHashTable *collections; -}; - -static void gcr_collection_iface (GcrCollectionIface *iface); - -G_DEFINE_TYPE_WITH_CODE (GcrUnionCollection, gcr_union_collection, G_TYPE_OBJECT, - G_IMPLEMENT_INTERFACE (GCR_TYPE_COLLECTION, gcr_collection_iface)); - -static void -on_collection_added (GcrCollection *collection, - GObject *object, - gpointer user_data) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (user_data); - gint *count; - - g_object_ref (object); - - count = g_hash_table_lookup (self->pv->items, object); - if (count == NULL) { - count = g_new0 (gint, 1); - *count = 1; - g_hash_table_insert (self->pv->items, object, count); - gcr_collection_emit_added (GCR_COLLECTION (self), object); - } else { - g_assert (*count > 0); - (*count)++; - } - - g_object_unref (object); -} - -static void -on_collection_removed (GcrCollection *collection, - GObject *object, - gpointer user_data) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (user_data); - gint *count; - - g_object_ref (object); - - count = g_hash_table_lookup (self->pv->items, object); - if (count != NULL) { - g_assert (*count > 0); - (*count)--; - - if (*count == 0) { - g_hash_table_remove (self->pv->items, object); - gcr_collection_emit_removed (GCR_COLLECTION (self), object); - } - } else { - g_warning ("Object of type %s that exists in an underlying " - "collection of a GcrUnionCollection appeared without " - "emitting 'added' signal.", G_OBJECT_TYPE_NAME (object)); - } - - g_object_unref (object); - -} - -static void -connect_to_collection (GcrUnionCollection *self, - GcrCollection *collection) -{ - g_signal_connect (collection, "added", G_CALLBACK (on_collection_added), self); - g_signal_connect (collection, "removed", G_CALLBACK (on_collection_removed), self); -} - -static void -disconnect_from_collection (GcrUnionCollection *self, - GcrCollection *collection) -{ - g_signal_handlers_disconnect_by_func (collection, on_collection_added, self); - g_signal_handlers_disconnect_by_func (collection, on_collection_removed, self); -} - -static void -gcr_union_collection_init (GcrUnionCollection *self) -{ - self->pv = G_TYPE_INSTANCE_GET_PRIVATE (self, GCR_TYPE_UNION_COLLECTION, GcrUnionCollectionPrivate); - self->pv->items = g_hash_table_new_full (g_direct_hash, g_direct_equal, - NULL, g_free); - self->pv->collections = g_hash_table_new_full (g_direct_hash, g_direct_equal, - g_object_unref, NULL); -} - -static void -gcr_union_collection_dispose (GObject *obj) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (obj); - GHashTableIter iter; - GcrCollection *collection; - - g_hash_table_iter_init (&iter, self->pv->collections); - while (g_hash_table_iter_next (&iter, (gpointer *)&collection, NULL)) - disconnect_from_collection (self, collection); - g_hash_table_remove_all (self->pv->collections); - g_hash_table_remove_all (self->pv->items); - - G_OBJECT_CLASS (gcr_union_collection_parent_class)->dispose (obj); -} - -static void -gcr_union_collection_finalize (GObject *obj) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (obj); - - g_assert (g_hash_table_size (self->pv->items) == 0); - g_hash_table_destroy (self->pv->items); - - g_assert (g_hash_table_size (self->pv->collections) == 0); - g_hash_table_destroy (self->pv->collections); - - G_OBJECT_CLASS (gcr_union_collection_parent_class)->finalize (obj); -} - -static void -gcr_union_collection_class_init (GcrUnionCollectionClass *klass) -{ - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - gobject_class->dispose = gcr_union_collection_dispose; - gobject_class->finalize = gcr_union_collection_finalize; - g_type_class_add_private (gobject_class, sizeof (GcrUnionCollectionPrivate)); -} - -static guint -gcr_union_collection_real_get_length (GcrCollection *coll) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (coll); - return g_hash_table_size (self->pv->items); -} - -static GList* -gcr_union_collection_real_get_objects (GcrCollection *coll) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (coll); - return g_hash_table_get_keys (self->pv->items); -} - -static gboolean -gcr_union_collection_real_contains (GcrCollection *collection, - GObject *object) -{ - GcrUnionCollection *self = GCR_UNION_COLLECTION (collection); - return g_hash_table_lookup (self->pv->items, object) ? TRUE : FALSE; -} - -static void -gcr_collection_iface (GcrCollectionIface *iface) -{ - iface->get_length = gcr_union_collection_real_get_length; - iface->get_objects = gcr_union_collection_real_get_objects; - iface->contains = gcr_union_collection_real_contains; -} - -/* ----------------------------------------------------------------------------- - * PUBLIC - */ - -/** - * gcr_union_collection_new: - * - * Create a new #GcrUnionCollection. - * - * Returns: (transfer full) (type Gcr.UnionCollection): a newly allocated - * collection, which should be freed with g_object_unref() - */ -GcrCollection * -gcr_union_collection_new (void) -{ - return g_object_new (GCR_TYPE_UNION_COLLECTION, NULL); -} - -/** - * gcr_union_collection_add: - * @self: The union collection - * @collection: The collection whose objects to add - * - * Add objects from this collection to the union - */ -void -gcr_union_collection_add (GcrUnionCollection *self, - GcrCollection *collection) -{ - g_return_if_fail (GCR_IS_UNION_COLLECTION (self)); - g_return_if_fail (GCR_IS_COLLECTION (collection)); - gcr_union_collection_take (self, g_object_ref (collection)); -} - -/** - * gcr_union_collection_take: - * @self: The union collection - * @collection: The collection whose objects to add - * - * Add objects from this collection to the union. Do not add an additional - * reference to the collection. - */ -void -gcr_union_collection_take (GcrUnionCollection *self, - GcrCollection *collection) -{ - GList *objects, *l; - - g_return_if_fail (GCR_IS_UNION_COLLECTION (self)); - g_return_if_fail (GCR_IS_COLLECTION (collection)); - g_return_if_fail (!g_hash_table_lookup (self->pv->collections, collection)); - - g_object_ref (collection); - - g_hash_table_insert (self->pv->collections, collection, collection); - connect_to_collection (self, collection); - - objects = gcr_collection_get_objects (collection); - for (l = objects; l != NULL; l = g_list_next (l)) - on_collection_added (collection, l->data, self); - g_list_free (objects); - - g_object_unref (collection); -} - -/** - * gcr_union_collection_remove: - * @self: The collection - * @collection: The collection whose objects to remove - * - * Remove an object from the collection. - */ -void -gcr_union_collection_remove (GcrUnionCollection *self, - GcrCollection *collection) -{ - GList *objects, *l; - - g_return_if_fail (GCR_IS_UNION_COLLECTION (self)); - g_return_if_fail (GCR_IS_COLLECTION (collection)); - g_return_if_fail (g_hash_table_lookup (self->pv->collections, collection)); - - g_object_ref (collection); - - g_hash_table_remove (self->pv->collections, collection); - disconnect_from_collection (self, collection); - - objects = gcr_collection_get_objects (collection); - for (l = objects; l != NULL; l = g_list_next (l)) - on_collection_removed (collection, l->data, self); - g_list_free (objects); - - g_object_unref (collection); -} - -/** - * gcr_union_collection_have: - * @self: the union collection - * @collection: the collection to check - * - * Check whether the collection is present in the union. - * - * Returns: whether present or not - */ -gboolean -gcr_union_collection_have (GcrUnionCollection *self, - GcrCollection *collection) -{ - g_return_val_if_fail (GCR_IS_UNION_COLLECTION (self), FALSE); - g_return_val_if_fail (GCR_IS_COLLECTION (collection), FALSE); - return g_hash_table_lookup (self->pv->collections, collection) != NULL; -} - -/** - * gcr_union_collection_size: - * @self: the union collection - * - * Return the number of collections in this union. This does not reflect - * the number of objects in the combined collection. - * - * Returns: number of collections inlcuded - */ -guint -gcr_union_collection_size (GcrUnionCollection *self) -{ - g_return_val_if_fail (GCR_IS_UNION_COLLECTION (self), FALSE); - return g_hash_table_size (self->pv->collections); -} |