1 files changed, 137 insertions, 0 deletions
diff --git a/app/core/gimpuncancelablewaitable.c b/app/core/gimpuncancelablewaitable.c
new file mode 100644
index 0000000..596efed
--- /dev/null
+++ b/app/core/gimpuncancelablewaitable.c
@@ -0,0 +1,137 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpuncancelablewaitable.c
+ * Copyright (C) 2018 Ell
+ *
+ * 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 3 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "core-types.h"
+
+#include "gimpuncancelablewaitable.h"
+#include "gimpwaitable.h"
+
+
+/*  local function prototypes  */
+
+static void       gimp_uncancelable_waitable_waitable_iface_init (GimpWaitableInterface   *iface);
+
+static void       gimp_uncancelable_waitable_finalize            (GObject                 *object);
+
+static void       gimp_uncancelable_waitable_wait                (GimpWaitable            *waitable);
+static gboolean   gimp_uncancelable_waitable_try_wait            (GimpWaitable            *waitable);
+static gboolean   gimp_uncancelable_waitable_wait_until          (GimpWaitable            *waitable,
+                                                                  gint64                   end_time);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpUncancelableWaitable, gimp_uncancelable_waitable, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GIMP_TYPE_WAITABLE,
+                                                gimp_uncancelable_waitable_waitable_iface_init))
+
+#define parent_class gimp_uncancelable_waitable_parent_class
+
+
+/*  private functions  */
+
+
+static void
+gimp_uncancelable_waitable_class_init (GimpUncancelableWaitableClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gimp_uncancelable_waitable_finalize;
+}
+
+static void
+gimp_uncancelable_waitable_waitable_iface_init (GimpWaitableInterface *iface)
+{
+  iface->wait       = gimp_uncancelable_waitable_wait;
+  iface->try_wait   = gimp_uncancelable_waitable_try_wait;
+  iface->wait_until = gimp_uncancelable_waitable_wait_until;
+}
+
+static void
+gimp_uncancelable_waitable_init (GimpUncancelableWaitable *uncancelable_waitable)
+{
+}
+
+static void
+gimp_uncancelable_waitable_finalize (GObject *object)
+{
+  GimpUncancelableWaitable *uncancelable_waitable =
+    GIMP_UNCANCELABLE_WAITABLE (object);
+
+  g_clear_object (&uncancelable_waitable->waitable);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_uncancelable_waitable_wait (GimpWaitable *waitable)
+{
+  GimpUncancelableWaitable *uncancelable_waitable =
+    GIMP_UNCANCELABLE_WAITABLE (waitable);
+
+  if (uncancelable_waitable->waitable)
+    gimp_waitable_wait (uncancelable_waitable->waitable);
+}
+
+static gboolean
+gimp_uncancelable_waitable_try_wait (GimpWaitable *waitable)
+{
+  GimpUncancelableWaitable *uncancelable_waitable =
+    GIMP_UNCANCELABLE_WAITABLE (waitable);
+
+  if (uncancelable_waitable->waitable)
+    return gimp_waitable_try_wait (uncancelable_waitable->waitable);
+  else
+    return TRUE;
+}
+
+static gboolean
+gimp_uncancelable_waitable_wait_until (GimpWaitable *waitable,
+                                gint64        end_time)
+{
+  GimpUncancelableWaitable *uncancelable_waitable =
+    GIMP_UNCANCELABLE_WAITABLE (waitable);
+
+  if (uncancelable_waitable->waitable)
+    return gimp_waitable_wait_until (uncancelable_waitable->waitable, end_time);
+  else
+    return TRUE;
+}
+
+
+/*  public functions  */
+
+
+GimpWaitable *
+gimp_uncancelable_waitable_new (GimpWaitable *waitable)
+{
+  GimpUncancelableWaitable *uncancelable_waitable;
+
+  g_return_val_if_fail (GIMP_IS_WAITABLE (waitable), NULL);
+
+  uncancelable_waitable = g_object_new (GIMP_TYPE_UNCANCELABLE_WAITABLE, NULL);
+
+  uncancelable_waitable->waitable = g_object_ref (waitable);
+
+  return GIMP_WAITABLE (uncancelable_waitable);
+}