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/*
* Nautilus
*
* Copyright (C) 2011 Red Hat, Inc.
*
* Nautilus 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.
*
* Nautilus 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; see the file COPYING. If not,
* see <http://www.gnu.org/licenses/>.
*
* Author: Cosimo Cecchi <cosimoc@redhat.com>
*/
#include <config.h>
#include "nautilus-progress-info-manager.h"
struct _NautilusProgressInfoManager
{
GObject parent_instance;
GList *progress_infos;
GList *current_viewers;
};
enum
{
NEW_PROGRESS_INFO,
HAS_VIEWERS_CHANGED,
LAST_SIGNAL
};
static NautilusProgressInfoManager *singleton = NULL;
static guint signals[LAST_SIGNAL] = { 0, };
G_DEFINE_TYPE (NautilusProgressInfoManager, nautilus_progress_info_manager,
G_TYPE_OBJECT);
static void remove_viewer (NautilusProgressInfoManager *self,
GObject *viewer);
static void
nautilus_progress_info_manager_finalize (GObject *obj)
{
GList *l;
NautilusProgressInfoManager *self = NAUTILUS_PROGRESS_INFO_MANAGER (obj);
if (self->progress_infos != NULL)
{
g_list_free_full (self->progress_infos, g_object_unref);
}
for (l = self->current_viewers; l != NULL; l = l->next)
{
g_object_weak_unref (l->data, (GWeakNotify) remove_viewer, self);
}
g_list_free (self->current_viewers);
G_OBJECT_CLASS (nautilus_progress_info_manager_parent_class)->finalize (obj);
}
static GObject *
nautilus_progress_info_manager_constructor (GType type,
guint n_props,
GObjectConstructParam *props)
{
GObject *retval;
if (singleton != NULL)
{
return G_OBJECT (g_object_ref (singleton));
}
retval = G_OBJECT_CLASS (nautilus_progress_info_manager_parent_class)->constructor
(type, n_props, props);
singleton = NAUTILUS_PROGRESS_INFO_MANAGER (retval);
g_object_add_weak_pointer (retval, (gpointer) & singleton);
return retval;
}
static void
nautilus_progress_info_manager_init (NautilusProgressInfoManager *self)
{
}
static void
nautilus_progress_info_manager_class_init (NautilusProgressInfoManagerClass *klass)
{
GObjectClass *oclass;
oclass = G_OBJECT_CLASS (klass);
oclass->constructor = nautilus_progress_info_manager_constructor;
oclass->finalize = nautilus_progress_info_manager_finalize;
signals[NEW_PROGRESS_INFO] =
g_signal_new ("new-progress-info",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE,
1,
NAUTILUS_TYPE_PROGRESS_INFO);
signals[HAS_VIEWERS_CHANGED] =
g_signal_new ("has-viewers-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE,
0);
}
NautilusProgressInfoManager *
nautilus_progress_info_manager_dup_singleton (void)
{
return g_object_new (NAUTILUS_TYPE_PROGRESS_INFO_MANAGER, NULL);
}
void
nautilus_progress_info_manager_add_new_info (NautilusProgressInfoManager *self,
NautilusProgressInfo *info)
{
if (g_list_find (self->progress_infos, info) != NULL)
{
g_warning ("Adding two times the same progress info object to the manager");
return;
}
self->progress_infos =
g_list_prepend (self->progress_infos, g_object_ref (info));
g_signal_emit (self, signals[NEW_PROGRESS_INFO], 0, info);
}
void
nautilus_progress_info_manager_remove_finished_or_cancelled_infos (NautilusProgressInfoManager *self)
{
GList *l;
GList *next;
l = self->progress_infos;
while (l != NULL)
{
next = l->next;
if (nautilus_progress_info_get_is_finished (l->data) ||
nautilus_progress_info_get_is_cancelled (l->data))
{
self->progress_infos = g_list_remove (self->progress_infos,
l->data);
}
l = next;
}
}
GList *
nautilus_progress_info_manager_get_all_infos (NautilusProgressInfoManager *self)
{
return self->progress_infos;
}
gboolean
nautilus_progress_manager_are_all_infos_finished_or_cancelled (NautilusProgressInfoManager *self)
{
GList *l;
for (l = self->progress_infos; l != NULL; l = l->next)
{
if (!(nautilus_progress_info_get_is_finished (l->data) ||
nautilus_progress_info_get_is_cancelled (l->data)))
{
return FALSE;
}
}
return TRUE;
}
static void
remove_viewer (NautilusProgressInfoManager *self,
GObject *viewer)
{
self->current_viewers = g_list_remove (self->current_viewers, viewer);
if (self->current_viewers == NULL)
{
g_signal_emit (self, signals[HAS_VIEWERS_CHANGED], 0);
}
}
void
nautilus_progress_manager_add_viewer (NautilusProgressInfoManager *self,
GObject *viewer)
{
GList *viewers;
viewers = self->current_viewers;
if (g_list_find (viewers, viewer) == NULL)
{
g_object_weak_ref (viewer, (GWeakNotify) remove_viewer, self);
viewers = g_list_append (viewers, viewer);
self->current_viewers = viewers;
if (g_list_length (viewers) == 1)
{
g_signal_emit (self, signals[HAS_VIEWERS_CHANGED], 0);
}
}
}
void
nautilus_progress_manager_remove_viewer (NautilusProgressInfoManager *self,
GObject *viewer)
{
if (g_list_find (self->current_viewers, viewer) != NULL)
{
g_object_weak_unref (viewer, (GWeakNotify) remove_viewer, self);
remove_viewer (self, viewer);
}
}
gboolean
nautilus_progress_manager_has_viewers (NautilusProgressInfoManager *self)
{
return self->current_viewers != NULL;
}
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