Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / ui / libgtk2ui / gtk2_border.h
1 // Copyright 2014 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.
4
5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_GTK2_BORDER_H_
6 #define CHROME_BROWSER_UI_LIBGTK2UI_GTK2_BORDER_H_
7
8 #include "base/scoped_observer.h"
9 #include "ui/gfx/image/image_skia.h"
10 #include "ui/native_theme/native_theme.h"
11 #include "ui/native_theme/native_theme_observer.h"
12 #include "ui/views/border.h"
13 #include "ui/views/controls/button/button.h"
14
15 namespace gfx {
16 class Canvas;
17 }
18
19 namespace views {
20 class LabelButton;
21 class LabelButtonBorder;
22 }
23
24 namespace libgtk2ui {
25 class Gtk2UI;
26
27 // Draws a gtk button border, and manages the memory of the resulting pixbufs.
28 class Gtk2Border : public views::Border, public ui::NativeThemeObserver {
29  public:
30   Gtk2Border(Gtk2UI* gtk2_ui,
31              views::LabelButton* owning_button,
32              scoped_ptr<views::LabelButtonBorder> border);
33   ~Gtk2Border() override;
34
35   // Overridden from views::Border:
36   void Paint(const views::View& view, gfx::Canvas* canvas) override;
37   gfx::Insets GetInsets() const override;
38   gfx::Size GetMinimumSize() const override;
39
40   // Overridden from views::NativeThemeChangeObserver:
41   void OnNativeThemeUpdated(ui::NativeTheme* observed_theme) override;
42
43  private:
44   void PaintState(const ui::NativeTheme::State state,
45                   const ui::NativeTheme::ExtraParams& extra,
46                   const gfx::Rect& rect,
47                   gfx::Canvas* canvas);
48
49   Gtk2UI* gtk2_ui_;
50
51   gfx::ImageSkia button_images_[2][views::Button::STATE_COUNT];
52
53   // The view to which we are a border. We keep track of this so that we can
54   // force invalidate the layout on theme changes.
55   views::LabelButton* owning_button_;
56
57   // The views::Border that we are replacing in native mode. We keep track of
58   // this for inset information.
59   scoped_ptr<views::LabelButtonBorder> border_;
60
61   ScopedObserver<ui::NativeTheme, ui::NativeThemeObserver> observer_manager_;
62
63   DISALLOW_COPY_AND_ASSIGN(Gtk2Border);
64 };
65
66 }  // namespace libgtk2ui
67
68 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_GTK2_BORDER_H_