1 files changed, 46 insertions, 0 deletions
diff --git a/ui/views/drag_utils_gtk.cc b/ui/views/drag_utils_gtk.cc
new file mode 100644
index 0000000..45996e7
--- /dev/null
+++ b/ui/views/drag_utils_gtk.cc
@@ -0,0 +1,46 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/views/drag_utils.h"
+
+#include <gtk/gtk.h>
+
+#include "base/logging.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/base/dragdrop/os_exchange_data.h"
+#include "ui/base/dragdrop/os_exchange_data_provider_gtk.h"
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/gtk_util.h"
+#include "ui/gfx/point.h"
+#include "ui/gfx/size.h"
+
+namespace drag_utils {
+
+void SetDragImageOnDataObject(const SkBitmap& bitmap,
+                              const gfx::Size& size,
+                              const gfx::Point& cursor_offset,
+                              ui::OSExchangeData* data_object) {
+  ui::OSExchangeDataProviderGtk& provider(
+      static_cast<ui::OSExchangeDataProviderGtk&>(data_object->provider()));
+
+  // Convert the bitmap into a GdkPixbuf.
+  GdkPixbuf* canvas_pixbuf = gfx::GdkPixbufFromSkBitmap(&bitmap);
+
+  // Make a new pixbuf of the requested size and copy it over.
+  GdkPixbuf* pixbuf = gdk_pixbuf_new(
+      gdk_pixbuf_get_colorspace(canvas_pixbuf),
+      gdk_pixbuf_get_has_alpha(canvas_pixbuf),
+      gdk_pixbuf_get_bits_per_sample(canvas_pixbuf),
+      size.width(),
+      size.height());
+  gdk_pixbuf_copy_area(canvas_pixbuf, 0, 0, size.width(), size.height(), pixbuf,
+                       0, 0);
+  g_object_unref(canvas_pixbuf);
+
+  // Set the drag data on to the provider.
+  provider.SetDragImage(pixbuf, cursor_offset);
+  g_object_unref(pixbuf);
+}
+
+}  // namespace drag_utils