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_VIEWS_FRAME_BROWSER_HEADER_PAINTER_ASH_H_
6#define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_HEADER_PAINTER_ASH_H_
7
8#include "ash/frame/header_painter.h"
9#include "base/basictypes.h"
10#include "base/compiler_specific.h"  // OVERRIDE
11#include "base/memory/scoped_ptr.h"
12#include "ui/gfx/animation/animation_delegate.h"
13
14class BrowserView;
15
16namespace ash {
17class FrameCaptionButtonContainerView;
18}
19
20namespace gfx {
21class ImageSkia;
22class Rect;
23class SlideAnimation;
24}
25namespace views {
26class View;
27class Widget;
28}
29
30// Helper class for painting the browser window header.
31class BrowserHeaderPainterAsh : public ash::HeaderPainter,
32                                public gfx::AnimationDelegate {
33 public:
34  BrowserHeaderPainterAsh();
35  virtual ~BrowserHeaderPainterAsh();
36
37  // BrowserHeaderPainterAsh does not take ownership of any of the parameters.
38  void Init(
39    views::Widget* frame,
40    BrowserView* browser_view,
41    views::View* header_view,
42    views::View* window_icon,
43    ash::FrameCaptionButtonContainerView* caption_button_container);
44
45  // ash::HeaderPainter overrides:
46  virtual int GetMinimumHeaderWidth() const OVERRIDE;
47  virtual void PaintHeader(gfx::Canvas* canvas, Mode mode) OVERRIDE;
48  virtual void LayoutHeader() OVERRIDE;
49  virtual int GetHeaderHeightForPainting() const OVERRIDE;
50  virtual void SetHeaderHeightForPainting(int height) OVERRIDE;
51  virtual void SchedulePaintForTitle() OVERRIDE;
52  virtual void UpdateLeftViewXInset(int left_view_x_inset) OVERRIDE;
53
54 private:
55  // gfx::AnimationDelegate override:
56  virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
57
58  // Paints highlight around the edge of the header for restored windows.
59  void PaintHighlightForRestoredWindow(gfx::Canvas* canvas);
60
61  // Paints the title bar, primarily the title string.
62  void PaintTitleBar(gfx::Canvas* canvas);
63
64  // Sets |frame_image| and |frame_overlay_image| to the frame image and the
65  // frame overlay image respectivately which should be used to paint the
66  // header.
67  void GetFrameImages(Mode mode,
68                      gfx::ImageSkia* frame_image,
69                      gfx::ImageSkia* frame_overlay_image) const;
70
71  // Sets |frame_image| and |frame_overlay_image| to the frame image and the
72  // frame overlay image respectively that should be used to paint the header
73  // for tabbed browser windows.
74  void GetFrameImagesForTabbedBrowser(
75      Mode mode,
76      gfx::ImageSkia* frame_image,
77      gfx::ImageSkia* frame_overlay_image) const;
78
79  // Returns the frame image which should be used to paint the header for popup
80  // browser windows and for hosted app windows which show the toolbar.
81  gfx::ImageSkia GetFrameImageForNonTabbedBrowser(Mode mode) const;
82
83  // Updates the images used for the minimize, restore and close buttons.
84  void UpdateCaptionButtonImages();
85
86  // Returns bounds of the region in |view_| which is painted with the header
87  // images. The region is assumed to start at the top left corner of |view_|
88  // and to have the same width as |view_|.
89  gfx::Rect GetPaintedBounds() const;
90
91  // Returns the bounds for the title.
92  gfx::Rect GetTitleBounds() const;
93
94  views::Widget* frame_;
95
96  // Whether the header is for a tabbed browser window.
97  bool is_tabbed_;
98
99  // Whether the header is for an incognito browser window.
100  bool is_incognito_;
101
102  // The header view.
103  views::View* view_;
104
105  views::View* window_icon_;
106  int window_icon_x_inset_;
107  ash::FrameCaptionButtonContainerView* caption_button_container_;
108  int painted_height_;
109
110  // Whether the header is painted for the first time.
111  bool initial_paint_;
112
113  // Whether the header should be painted as active.
114  Mode mode_;
115
116  scoped_ptr<gfx::SlideAnimation> activation_animation_;
117
118  DISALLOW_COPY_AND_ASSIGN(BrowserHeaderPainterAsh);
119};
120
121#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_HEADER_PAINTER_ASH_H_
122