gnome-control-center/panels/background/bg-wallpapers-source.c
Georges Basile Stavracas Neto c64ab472b6
background: Switch to GtkFlowBox
This is a major rework on how images are loaded and stored.
Unfortunately, this is so entangled that doing each change
as an atomic step is pretty much unfeasible.

The first major change is that BgSource now returns a GListStore
instead of a GtkListStore. This is necessary for us to bind it
to GtkFlowBox, and pretty much signals we're not using any of
the tree/icon views anymore.

Second, the thumbnail factory was moved to BgSource itself. We
only create factories for large thumbnails, so it's not needed
to handle each one of them individually.

At last, switch CcBackgroundChooser to GtkFlowBox, and adjust
the signals we connect to.
2019-05-30 20:01:45 -03:00

139 lines
3.5 KiB
C

/* bg-wallpapers-source.c */
/*
* Copyright (C) 2010 Intel, Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 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: Thomas Wood <thomas.wood@intel.com>
*
*/
#include "bg-wallpapers-source.h"
#include "cc-background-item.h"
#include "cc-background-xml.h"
#include <cairo-gobject.h>
#include <gio/gio.h>
struct _BgWallpapersSource
{
BgSource parent_instance;
CcBackgroundXml *xml;
};
G_DEFINE_TYPE (BgWallpapersSource, bg_wallpapers_source, BG_TYPE_SOURCE)
static void
load_wallpapers (gchar *key,
CcBackgroundItem *item,
BgWallpapersSource *source)
{
GListStore *store = bg_source_get_liststore (BG_SOURCE (source));
gboolean deleted;
g_object_get (G_OBJECT (item), "is-deleted", &deleted, NULL);
if (deleted)
return;
g_list_store_append (store, item);
}
static void
list_load_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
g_autoptr(GError) error = NULL;
if (!cc_background_xml_load_list_finish (CC_BACKGROUND_XML (source_object), res, &error))
g_warning ("Failed to load background list: %s", error->message);
}
static void
item_added (CcBackgroundXml *xml,
CcBackgroundItem *item,
BgWallpapersSource *self)
{
load_wallpapers (NULL, item, self);
}
static void
load_default_bg (BgWallpapersSource *self)
{
const char * const *system_data_dirs;
guint i;
/* FIXME We could do this nicer if we had the XML source in GSettings */
system_data_dirs = g_get_system_data_dirs ();
for (i = 0; system_data_dirs[i]; i++) {
g_autofree gchar *filename = NULL;
filename = g_build_filename (system_data_dirs[i],
"gnome-background-properties",
"adwaita.xml",
NULL);
if (cc_background_xml_load_xml (self->xml, filename))
break;
}
}
static void
bg_wallpapers_source_constructed (GObject *object)
{
BgWallpapersSource *self = BG_WALLPAPERS_SOURCE (object);
G_OBJECT_CLASS (bg_wallpapers_source_parent_class)->constructed (object);
g_signal_connect (G_OBJECT (self->xml), "added",
G_CALLBACK (item_added), self);
/* Try adding the default background first */
load_default_bg (self);
cc_background_xml_load_list_async (self->xml, NULL, list_load_cb, self);
}
static void
bg_wallpapers_source_dispose (GObject *object)
{
BgWallpapersSource *self = BG_WALLPAPERS_SOURCE (object);
g_clear_object (&self->xml);
G_OBJECT_CLASS (bg_wallpapers_source_parent_class)->dispose (object);
}
static void
bg_wallpapers_source_init (BgWallpapersSource *self)
{
self->xml = cc_background_xml_new ();
}
static void
bg_wallpapers_source_class_init (BgWallpapersSourceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = bg_wallpapers_source_constructed;
object_class->dispose = bg_wallpapers_source_dispose;
}
BgWallpapersSource *
bg_wallpapers_source_new (GtkWidget *widget)
{
return g_object_new (BG_TYPE_WALLPAPERS_SOURCE, "widget", widget, NULL);
}