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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 #include "athena/screen/background_controller.h" | |
6 | |
7 #include "base/strings/stringprintf.h" | |
8 #include "base/strings/utf_string_conversions.h" | |
9 #include "extensions/shell/common/version.h" | |
10 #include "third_party/skia/include/core/SkColor.h" | |
11 #include "ui/aura/window.h" | |
12 #include "ui/compositor/layer.h" | |
13 #include "ui/gfx/canvas.h" | |
14 #include "ui/gfx/image/image_skia.h" | |
15 #include "ui/views/controls/label.h" | |
16 #include "ui/views/view.h" | |
17 #include "ui/views/widget/widget.h" | |
18 | |
19 namespace athena { | |
20 | |
21 namespace { | |
22 | |
23 const SkColor kVersionColor = SK_ColorWHITE; | |
24 const SkColor kVersionBackground = SK_ColorTRANSPARENT; | |
25 const SkColor kVersionShadow = 0xB0000000; | |
26 const int kVersionShadowBlur = 10; | |
27 | |
28 class VersionView : public views::Label { | |
29 public: | |
30 VersionView() { | |
31 SetEnabledColor(kVersionColor); | |
32 SetBackgroundColor(kVersionBackground); | |
33 SetShadows(gfx::ShadowValues(1, gfx::ShadowValue(gfx::Point(0, 1), | |
34 kVersionShadowBlur, | |
35 kVersionShadow))); | |
36 SetText(base::UTF8ToUTF16(base::StringPrintf("%s (Build %s)", | |
37 PRODUCT_VERSION, | |
38 LAST_CHANGE))); | |
39 SetBoundsRect(gfx::Rect(gfx::Point(), GetPreferredSize())); | |
40 } | |
41 virtual ~VersionView() { | |
42 } | |
43 | |
44 private: | |
45 DISALLOW_COPY_AND_ASSIGN(VersionView); | |
46 }; | |
47 | |
48 } // namespace | |
49 | |
50 class BackgroundView : public views::View { | |
51 public: | |
52 BackgroundView() { | |
53 AddChildView(new VersionView); | |
54 } | |
55 virtual ~BackgroundView() {} | |
56 | |
57 void SetImage(const gfx::ImageSkia& image) { | |
58 image_ = image; | |
59 SchedulePaint(); | |
60 } | |
61 | |
62 // views::View | |
63 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { | |
64 canvas->DrawImageInt(image_, | |
65 0, | |
66 0, | |
67 image_.width(), | |
68 image_.height(), | |
69 0, | |
70 0, | |
71 width(), | |
72 height(), | |
73 true); | |
74 } | |
75 | |
76 private: | |
77 gfx::ImageSkia image_; | |
78 | |
79 DISALLOW_COPY_AND_ASSIGN(BackgroundView); | |
80 }; | |
81 | |
82 BackgroundController::BackgroundController(aura::Window* container) { | |
83 // TODO(oshima): Using widget to just draw an image is probably | |
84 // overkill. Just use WindowDelegate to draw the background and | |
85 // remove dependency to ui/views. | |
86 | |
87 views::Widget* background_widget = new views::Widget; | |
88 views::Widget::InitParams params( | |
89 views::Widget::InitParams::TYPE_WINDOW_FRAMELESS); | |
90 params.accept_events = false; | |
91 params.parent = container; | |
92 background_widget->Init(params); | |
93 background_widget->GetNativeWindow()->layer()->SetMasksToBounds(true); | |
94 background_view_ = new BackgroundView; | |
95 background_widget->SetContentsView(background_view_); | |
96 background_widget->GetNativeView()->SetName("BackgroundWidget"); | |
97 background_widget->Show(); | |
98 } | |
99 | |
100 BackgroundController::~BackgroundController() { | |
101 // background_widget is owned by the container and will be deleted | |
102 // when the container is deleted. | |
103 } | |
104 | |
105 void BackgroundController::SetImage(const gfx::ImageSkia& image) { | |
106 // TODO(oshima): implement cross fede animation. | |
107 background_view_->SetImage(image); | |
108 } | |
109 | |
110 } // namespace athena | |
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