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/*
* Copyright © 2012 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "hudsourcelist.h"
/**
* SECTION:hudsourcelist
* @title: HudSourceList
* @short_description: a list of #HudSources that is itself a #HudSource
*
* #HudSourceList is a list of #HudSources that functions as a
* #HudSource itself.
*
* Calls to hud_source_search() on the list get turned into searches on
* each source in the list. If any source in the list emits the
* HudSource::changed signal then the list itself will emit it as well.
*
* Sources may be added to the list using hud_source_list_add(). It is
* not possible to remove sources.
**/
/**
* HudSourceList:
*
* This is an opaque structure type.
**/
struct _HudSourceList
{
GObject parent_instance;
GSList *list;
};
typedef GObjectClass HudSourceListClass;
static void hud_source_list_iface_init (HudSourceInterface *iface);
G_DEFINE_TYPE_WITH_CODE (HudSourceList, hud_source_list, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (HUD_TYPE_SOURCE, hud_source_list_iface_init))
static void
hud_source_list_source_changed (HudSource *source,
gpointer user_data)
{
HudSourceList *list = user_data;
hud_source_changed (HUD_SOURCE (list));
}
static void
hud_source_list_use (HudSource *source)
{
HudSourceList *list = HUD_SOURCE_LIST (source);
GSList *node;
for (node = list->list; node; node = node->next)
hud_source_use (node->data);
}
static void
hud_source_list_unuse (HudSource *source)
{
HudSourceList *list = HUD_SOURCE_LIST (source);
GSList *node;
for (node = list->list; node; node = node->next)
hud_source_unuse (node->data);
}
static void
hud_source_list_search (HudSource *source,
GPtrArray *results_array,
HudTokenList *search_string)
{
HudSourceList *list = HUD_SOURCE_LIST (source);
GSList *node;
for (node = list->list; node; node = node->next)
hud_source_search (node->data, results_array, search_string);
}
static void
hud_source_list_finalize (GObject *object)
{
HudSourceList *list = HUD_SOURCE_LIST (object);
/* signals have already been disconnected in dispose */
g_slist_free_full (list->list, g_object_unref);
G_OBJECT_CLASS (hud_source_list_parent_class)
->finalize (object);
}
static void
hud_source_list_init (HudSourceList *list)
{
}
static void
hud_source_list_iface_init (HudSourceInterface *iface)
{
iface->use = hud_source_list_use;
iface->unuse = hud_source_list_unuse;
iface->search = hud_source_list_search;
}
static void
hud_source_list_class_init (HudSourceListClass *class)
{
class->finalize = hud_source_list_finalize;
}
/**
* hud_source_list_new:
*
* Creates a #HudSourceList.
*
* You should probably add some sources to it using
* hud_source_list_add().
*
* Returns: a new empty #HudSourceList
**/
HudSourceList *
hud_source_list_new (void)
{
return g_object_new (HUD_TYPE_SOURCE_LIST, NULL);
}
/**
* hud_source_list_add:
* @list: a #HudSourceList
* @source: a #HudSource to add to the list
*
* Adds @source to @list.
*
* Future hud_source_search() calls on @list will include results from
* @source.
**/
void
hud_source_list_add (HudSourceList *list,
HudSource *source)
{
g_return_if_fail (HUD_IS_SOURCE_LIST (list));
g_return_if_fail (HUD_IS_SOURCE (source));
g_signal_connect_object (source, "changed", G_CALLBACK (hud_source_list_source_changed), list, 0);
list->list = g_slist_prepend (list->list, g_object_ref (source));
hud_source_changed (HUD_SOURCE (source));
}
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