Adding upstream version 3.38.2.upstream/3.38.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 239 insertions, 0 deletions

diff --git a/src/nautilus-progress-info-manager.c b/src/nautilus-progress-info-manager.c
new file mode 100644
index 0000000..88e76cf
--- /dev/null
+++ b/src/nautilus-progress-info-manager.c
@@ -0,0 +1,239 @@
+/*
+ * 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;
+}