1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_BACK_BUTTON_H_
6 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_BACK_BUTTON_H_
8 #include "chrome/browser/ui/views/toolbar/toolbar_button.h"
19 // A subclass of ToolbarButton to allow the back button's hittest region to
20 // extend all the way to the start of the toolbar (i.e. the screen edge) in
21 // maximized mode, to benefit from Fitt's Law. The button images and focus
22 // border are still drawn with the normal square shape.
23 class BackButton : public ToolbarButton {
25 // Takes ownership of the |model|, which can be null if no menu
27 BackButton(views::ButtonListener* listener, ui::MenuModel* model);
28 ~BackButton() override;
30 void SetLeadingMargin(int margin);
33 gfx::Rect GetThemePaintRect() const override;
34 scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const override;
37 // Any leading margin to be applied. Used when the back button is in
38 // a maximized state to extend to the full window width.
41 DISALLOW_COPY_AND_ASSIGN(BackButton);
44 #endif // CHROME_BROWSER_UI_VIEWS_TOOLBAR_BACK_BUTTON_H_