--- /dev/null
+/*
+ * 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:
+ * @parent: The parent object
+ *
+ * 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: 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, g_object_ref (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);
+}
--- /dev/null
+/*
+ * 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>
+ */
+
+#ifndef __GCR_UNION_COLLECTION_H__
+#define __GCR_UNION_COLLECTION_H__
+
+#include "gcr.h"
+#include "gcr-collection.h"
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GCR_TYPE_UNION_COLLECTION (gcr_union_collection_get_type ())
+#define GCR_UNION_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GCR_TYPE_COLLECTION, GcrUnionCollection))
+#define GCR_UNION_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GCR_TYPE_COLLECTION, GcrUnionCollectionClass))
+#define GCR_IS_UNION_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GCR_TYPE_COLLECTION))
+#define GCR_IS_UNION_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GCR_TYPE_COLLECTION))
+#define GCR_UNION_COLLECTION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GCR_TYPE_COLLECTION, GcrUnionCollectionClass))
+
+typedef struct _GcrUnionCollection GcrUnionCollection;
+typedef struct _GcrUnionCollectionClass GcrUnionCollectionClass;
+typedef struct _GcrUnionCollectionPrivate GcrUnionCollectionPrivate;
+
+struct _GcrUnionCollection {
+ GObject parent;
+
+ /*< private >*/
+ GcrUnionCollectionPrivate *pv;
+};
+
+struct _GcrUnionCollectionClass {
+ GObjectClass parent_class;
+};
+
+GType gcr_union_collection_get_type (void);
+
+GcrCollection* gcr_union_collection_new (void);
+
+void gcr_union_collection_add (GcrUnionCollection *self,
+ GcrCollection *collection);
+
+void gcr_union_collection_take (GcrUnionCollection *self,
+ GcrCollection *collection);
+
+void gcr_union_collection_remove (GcrUnionCollection *self,
+ GcrCollection *collection);
+
+G_END_DECLS
+
+#endif /* __GCR_UNION_COLLECTION_H__ */
projects / platform / upstream / gcr.git / commitdiff