1 files changed, 44 insertions, 0 deletions
diff --git a/chrome/browser/gtk/focus_store_gtk.cc b/chrome/browser/gtk/focus_store_gtk.cc
new file mode 100644
index 0000000..f61b2ba
--- /dev/null
+++ b/chrome/browser/gtk/focus_store_gtk.cc
@@ -0,0 +1,44 @@
+// 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 "chrome/browser/gtk/focus_store_gtk.h"
+
+#include <gtk/gtk.h>
+
+#include "base/logging.h"
+#include "chrome/browser/platform_util.h"
+
+FocusStoreGtk::FocusStoreGtk() : widget_(NULL) {
+}
+
+FocusStoreGtk::~FocusStoreGtk() {
+  DisconnectDestroyHandler();
+}
+
+void FocusStoreGtk::Store(GtkWidget* widget) {
+  DisconnectDestroyHandler();
+  if (!widget) {
+    widget_ = NULL;
+    return;
+  }
+
+  GtkWindow* window = platform_util::GetTopLevel(widget);
+  if (!window) {
+    widget_ = NULL;
+    return;
+  }
+
+  widget_ = window->focus_widget;
+  if (widget_) {
+    // When invoked, |gtk_widget_destroyed| will set |widget_| to NULL.
+    destroy_handler_id_ = g_signal_connect(widget_, "destroy",
+                                           G_CALLBACK(gtk_widget_destroyed),
+                                           &widget_);
+  }
+}
+
+void FocusStoreGtk::DisconnectDestroyHandler() {
+  if (widget_)
+    g_signal_handler_disconnect(widget_, destroy_handler_id_);
+}