Makes it so that when a folder is open on the bookmark bar and the...

views/screen_gtk.cc

 // Copyright (c) 2009 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 "views/screen.h"
 
 #include <gtk/gtk.h>
 
 #include "base/logging.h"
 
@@ skipping 40 matching lines @@
 
 // static
 gfx::Rect Screen::GetMonitorAreaNearestPoint(const gfx::Point& point) {
   GdkScreen* screen = gdk_screen_get_default();
   gint monitor = gdk_screen_get_monitor_at_point(screen, point.x(), point.y());
   GdkRectangle bounds;
   gdk_screen_get_monitor_geometry(screen, monitor, &bounds);
   return gfx::Rect(bounds);
 }
 
+gfx::NativeWindow Screen::GetWindowAtCursorScreenPoint() {
+  GdkWindow* window = gdk_window_at_pointer(NULL, NULL);
+  if (!window)
+    return NULL;
+
+  gpointer data = NULL;
+  gdk_window_get_user_data(window, &data);
+  GtkWidget* widget = reinterpret_cast<GtkWidget*>(data);
+  if (!widget)
+    return NULL;
+  widget = gtk_widget_get_toplevel(widget);
+  return GTK_IS_WINDOW(widget) ? GTK_WINDOW(widget) : NULL;
+}
+
 }  // namespace