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/system/background_controller.h"
6
7#include "athena/system/public/system_ui.h"
8#include "ui/aura/window.h"
9#include "ui/compositor/layer.h"
10#include "ui/gfx/canvas.h"
11#include "ui/gfx/image/image_skia.h"
12#include "ui/views/view.h"
13#include "ui/views/widget/widget.h"
14
15namespace athena {
16
17class BackgroundView : public views::View {
18 public:
19  BackgroundView() : system_info_view_(NULL) {
20    system_info_view_ =
21        SystemUI::Get()->CreateSystemInfoView(SystemUI::COLOR_SCHEME_LIGHT);
22    AddChildView(system_info_view_);
23  }
24  virtual ~BackgroundView() {}
25
26  void SetImage(const gfx::ImageSkia& image) {
27    image_ = image;
28    SchedulePaint();
29  }
30
31  // views::View:
32  virtual void Layout() OVERRIDE {
33    system_info_view_->SetBounds(
34        0, 0, width(), system_info_view_->GetPreferredSize().height());
35  }
36
37  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
38    canvas->DrawImageInt(image_,
39                         0,
40                         0,
41                         image_.width(),
42                         image_.height(),
43                         0,
44                         0,
45                         width(),
46                         height(),
47                         true);
48  }
49
50 private:
51  gfx::ImageSkia image_;
52  views::View* system_info_view_;
53
54  DISALLOW_COPY_AND_ASSIGN(BackgroundView);
55};
56
57BackgroundController::BackgroundController(aura::Window* background_container) {
58  views::Widget* background_widget = new views::Widget;
59  views::Widget::InitParams params(
60      views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
61  params.parent = background_container;
62  background_widget->Init(params);
63  background_widget->GetNativeWindow()->layer()->SetMasksToBounds(true);
64  background_view_ = new BackgroundView;
65  background_widget->SetContentsView(background_view_);
66  background_widget->GetNativeView()->SetName("BackgroundWidget");
67  background_widget->Show();
68}
69
70BackgroundController::~BackgroundController() {
71  // background_widget is owned by the container and will be deleted
72  // when the container is deleted.
73}
74
75void BackgroundController::SetImage(const gfx::ImageSkia& image) {
76  // TODO(oshima): implement cross fede animation.
77  background_view_->SetImage(image);
78}
79
80}  // namespace athena
81