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// 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 "base/scoped_ptr.h"
#include "base/task.h"
#include "chrome/browser/gtk/custom_button.h"
class BackForwardMenuModelGtk;
class Browser;
class MenuGtk;
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 {
public:
BackForwardButtonGtk(Browser* browser, bool is_forward);
virtual ~BackForwardButtonGtk();
// The dropdown menu is no longer showing.
void StoppedShowingMenu();
GtkWidget* widget() { return button_->widget(); }
private:
// Executes the browser command.
static void OnClick(GtkWidget* widget, BackForwardButtonGtk* button);
// Starts a timer to show the dropdown menu.
static gboolean OnButtonPress(GtkWidget* button,
GdkEventButton* event,
BackForwardButtonGtk* toolbar);
// 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.
static gboolean OnMouseMove(GtkWidget* widget,
GdkEventMotion* event,
BackForwardButtonGtk* toolbar);
// 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 delegate.
scoped_ptr<BackForwardMenuModelGtk> 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_
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