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Side by Side Diff: athena/screen/background_controller.cc

Issue 483363003: [Athena] Add status icons and system time to the desktop background (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 4 months ago
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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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