| // 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. |
| |
| #ifndef CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_ |
| #define CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chrome/browser/ui/gtk/custom_button.h" |
| #include "chrome/browser/ui/gtk/menu_gtk.h" |
| #include "ui/base/gtk/gtk_signal.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() OVERRIDE; |
| virtual bool AlwaysShowIconForCmd(int command_id) const OVERRIDE; |
| |
| 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(int button, guint32 event_time); |
| |
| // 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_; |
| |
| base::WeakPtrFactory<BackForwardButtonGtk> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BackForwardButtonGtk); |
| }; |
| |
| #endif // CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_ |