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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 ASH_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_ | |
6 #define ASH_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "ash/common/frame/header_painter.h" | |
12 #include "base/compiler_specific.h" // override | |
13 #include "base/gtest_prod_util.h" | |
14 #include "base/macros.h" | |
15 #include "third_party/skia/include/core/SkColor.h" | |
16 #include "ui/gfx/animation/animation_delegate.h" | |
17 | |
18 namespace gfx { | |
19 class Rect; | |
20 class SlideAnimation; | |
21 } | |
22 namespace views { | |
23 class View; | |
24 class Widget; | |
25 } | |
26 | |
27 namespace ash { | |
28 class FrameCaptionButtonContainerView; | |
29 | |
30 // Helper class for painting the default window header. | |
31 class ASH_EXPORT DefaultHeaderPainter : public HeaderPainter, | |
32 public gfx::AnimationDelegate { | |
33 public: | |
34 DefaultHeaderPainter(); | |
35 ~DefaultHeaderPainter() override; | |
36 | |
37 // DefaultHeaderPainter does not take ownership of any of the parameters. | |
38 void Init(views::Widget* frame, | |
39 views::View* header_view, | |
40 FrameCaptionButtonContainerView* caption_button_container); | |
41 | |
42 // HeaderPainter overrides: | |
43 int GetMinimumHeaderWidth() const override; | |
44 void PaintHeader(gfx::Canvas* canvas, Mode mode) override; | |
45 void LayoutHeader() override; | |
46 int GetHeaderHeight() const override; | |
47 int GetHeaderHeightForPainting() const override; | |
48 void SetHeaderHeightForPainting(int height) override; | |
49 void SchedulePaintForTitle() override; | |
50 | |
51 // Sets the left header view for the header. Passing NULL removes the view. | |
52 void UpdateLeftHeaderView(views::View* left_header_view); | |
53 | |
54 // Sets the active and inactive frame colors. Note the inactive frame color | |
55 // will have some transparency added when the frame is drawn. | |
56 void SetFrameColors(SkColor active_frame_color, SkColor inactive_frame_color); | |
57 SkColor GetActiveFrameColor() const; | |
58 SkColor GetInactiveFrameColor() const; | |
59 | |
60 private: | |
61 FRIEND_TEST_ALL_PREFIXES(DefaultHeaderPainterTest, TitleIconAlignment); | |
62 FRIEND_TEST_ALL_PREFIXES(DefaultHeaderPainterTest, LightIcons); | |
63 | |
64 // gfx::AnimationDelegate override: | |
65 void AnimationProgressed(const gfx::Animation* animation) override; | |
66 | |
67 // Paints highlight around the edge of the header for inactive restored | |
68 // windows. | |
69 void PaintHighlightForInactiveRestoredWindow(gfx::Canvas* canvas); | |
70 | |
71 // Paints the title bar, primarily the title string. | |
72 void PaintTitleBar(gfx::Canvas* canvas); | |
73 | |
74 // Paints the header/content separator. | |
75 void PaintHeaderContentSeparator(gfx::Canvas* canvas); | |
76 | |
77 // Whether light caption images should be used. This is the case when the | |
78 // background of the frame is dark. | |
79 bool ShouldUseLightImages(); | |
80 | |
81 // Update all the images in the caption buttons. | |
82 void UpdateAllButtonImages(); | |
83 | |
84 // Updates the size button's images. | |
85 void UpdateSizeButtonImages(); | |
86 | |
87 // Returns the header bounds in the coordinates of |view_|. The header is | |
88 // assumed to be positioned at the top left corner of |view_| and to have the | |
89 // same width as |view_|. | |
90 gfx::Rect GetLocalBounds() const; | |
91 | |
92 // Returns the bounds for the title. | |
93 gfx::Rect GetTitleBounds() const; | |
94 | |
95 // Returns whether the frame uses custom frame coloring. | |
96 bool UsesCustomFrameColors() const; | |
97 | |
98 views::Widget* frame_; | |
99 views::View* view_; | |
100 views::View* left_header_view_; // May be NULL. | |
101 SkColor active_frame_color_; | |
102 SkColor inactive_frame_color_; | |
103 FrameCaptionButtonContainerView* caption_button_container_; | |
104 | |
105 // The height of the header to paint. | |
106 int painted_height_; | |
107 | |
108 // Whether the header should be painted as active. | |
109 Mode mode_; | |
110 | |
111 // Whether the header is painted for the first time. | |
112 bool initial_paint_; | |
113 | |
114 std::unique_ptr<gfx::SlideAnimation> activation_animation_; | |
115 | |
116 DISALLOW_COPY_AND_ASSIGN(DefaultHeaderPainter); | |
117 }; | |
118 | |
119 } // namespace ash | |
120 | |
121 #endif // ASH_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_ | |
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