Merge Chromium src@r53293

Change-Id: Ia79acf8670f385cee48c45b0a75371d8e950af34

1 files changed, 71 insertions, 0 deletions

diff --git a/chrome/browser/gtk/back_forward_button_gtk.h b/chrome/browser/gtk/back_forward_button_gtk.h
new file mode 100644
index 0000000..3439a75
--- /dev/null
+++ b/chrome/browser/gtk/back_forward_button_gtk.h
@@ -0,0 +1,71 @@
+// 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.
+
+#ifndef CHROME_BROWSER_GTK_BACK_FORWARD_BUTTON_GTK_H_
+#define CHROME_BROWSER_GTK_BACK_FORWARD_BUTTON_GTK_H_
+
+#include "app/gtk_signal.h"
+#include "base/scoped_ptr.h"
+#include "base/task.h"
+#include "chrome/browser/gtk/custom_button.h"
+#include "chrome/browser/gtk/menu_gtk.h"
+
+class BackForwardMenuModel;
+class Browser;
+
+typedef struct _GtkWidget GtkWidget;
+
+// When clicked, these buttons will navigate forward or backward. When
+// pressed and held, they show a dropdown menu of recent web sites.
+class BackForwardButtonGtk : MenuGtk::Delegate {
+ public:
+  BackForwardButtonGtk(Browser* browser, bool is_forward);
+  virtual ~BackForwardButtonGtk();
+
+  // MenuGtk::Delegate implementation.
+  virtual void StoppedShowing();
+  bool AlwaysShowImages() const;
+
+  GtkWidget* widget() { return button_->widget(); }
+
+ private:
+  // Executes the browser command.
+  CHROMEGTK_CALLBACK_0(BackForwardButtonGtk, void, OnClick);
+
+  // Starts a timer to show the dropdown menu.
+  CHROMEGTK_CALLBACK_1(BackForwardButtonGtk, gboolean, OnButtonPress,
+                       GdkEventButton*);
+
+  // If there is a timer to show the dropdown menu, and the mouse has moved
+  // sufficiently down the screen, cancel the timer and immediately show the
+  // menu.
+  CHROMEGTK_CALLBACK_1(BackForwardButtonGtk, gboolean, OnMouseMove,
+                       GdkEventMotion*);
+
+  // Shows the dropdown menu.
+  void ShowBackForwardMenu();
+
+  // The menu gets reset every time it is shown.
+  scoped_ptr<MenuGtk> menu_;
+
+  scoped_ptr<CustomDrawButton> button_;
+
+  // The browser to which we will send commands.
+  Browser* browser_;
+
+  // Whether this button is a forward button.
+  bool is_forward_;
+
+  // The dropdown menu model.
+  scoped_ptr<BackForwardMenuModel> menu_model_;
+
+  // The y position of the last mouse down event.
+  int y_position_of_last_press_;
+
+  ScopedRunnableMethodFactory<BackForwardButtonGtk> show_menu_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BackForwardButtonGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_BACK_FORWARD_BUTTON_GTK_H_