tray_accessibility.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
1// Copyright (c) 2012 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 "ash/system/tray_accessibility.h"
6
7#include "ash/shell.h"
8#include "ash/shell_delegate.h"
9#include "ash/system/tray/tray_constants.h"
10#include "ash/system/tray/tray_views.h"
11#include "grit/ash_resources.h"
12#include "grit/ash_strings.h"
13#include "ui/base/resource/resource_bundle.h"
14#include "ui/gfx/image/image.h"
15#include "ui/views/controls/image_view.h"
16#include "ui/views/controls/label.h"
17#include "ui/views/layout/box_layout.h"
18#include "ui/views/widget/widget.h"
19
20namespace ash {
21namespace internal {
22
23class DefaultAccessibilityView : public ActionableView {
24 public:
25  DefaultAccessibilityView() {
26    SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal,
27                                          kTrayPopupPaddingHorizontal,
28                                          0,
29                                          kTrayPopupPaddingBetweenItems));
30
31    ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
32    FixedSizedImageView* image =
33        new FixedSizedImageView(0, kTrayPopupItemHeight);
34    image->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_ACCESSIBILITY_DARK).
35                    ToImageSkia());
36
37    AddChildView(image);
38    string16 label = bundle.GetLocalizedString(
39        IDS_ASH_STATUS_TRAY_DISABLE_SPOKEN_FEEDBACK);
40    AddChildView(new views::Label(label));
41    SetAccessibleName(label);
42  }
43
44  virtual ~DefaultAccessibilityView() {}
45
46 protected:
47  // Overridden from ActionableView.
48  virtual bool PerformAction(const ui::Event& event) OVERRIDE {
49    if (Shell::GetInstance()->delegate()->IsSpokenFeedbackEnabled())
50      Shell::GetInstance()->delegate()->ToggleSpokenFeedback();
51    GetWidget()->Close();
52    return true;
53  }
54
55 private:
56
57  DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityView);
58};
59
60TrayAccessibility::TrayAccessibility()
61    : TrayImageItem(IDR_AURA_UBER_TRAY_ACCESSIBILITY),
62      default_(NULL),
63      detailed_(NULL) {
64}
65
66TrayAccessibility::~TrayAccessibility() {}
67
68bool TrayAccessibility::GetInitialVisibility() {
69  return Shell::GetInstance()->delegate() &&
70      Shell::GetInstance()->delegate()->IsSpokenFeedbackEnabled();
71}
72
73views::View* TrayAccessibility::CreateDefaultView(user::LoginStatus status) {
74  if (!Shell::GetInstance()->delegate()->IsSpokenFeedbackEnabled())
75    return NULL;
76
77  CHECK(default_ == NULL);
78  default_ = new DefaultAccessibilityView();
79
80  return default_;
81}
82
83views::View* TrayAccessibility::CreateDetailedView(user::LoginStatus status) {
84  CHECK(detailed_ == NULL);
85  detailed_ = new views::View;
86
87  detailed_->SetLayoutManager(new
88      views::BoxLayout(views::BoxLayout::kHorizontal,
89      kTrayPopupPaddingHorizontal, 10, kTrayPopupPaddingBetweenItems));
90
91  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
92  views::ImageView* image = new views::ImageView;
93  image->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_ACCESSIBILITY_DARK).
94      ToImageSkia());
95
96  detailed_->AddChildView(image);
97  detailed_->AddChildView(new views::Label(bundle.GetLocalizedString(
98      IDS_ASH_STATUS_TRAY_ACCESSIBILITY_TURNED_ON_BUBBLE)));
99
100  return detailed_;
101}
102
103void TrayAccessibility::DestroyDefaultView() {
104  default_ = NULL;
105}
106
107void TrayAccessibility::DestroyDetailedView() {
108  detailed_ = NULL;
109}
110
111void TrayAccessibility::OnAccessibilityModeChanged(bool enabled) {
112  if (tray_view())
113    tray_view()->SetVisible(enabled);
114
115  if (enabled) {
116    PopupDetailedView(kTrayPopupAutoCloseDelayForTextInSeconds, false);
117  } else if (detailed_) {
118    detailed_->GetWidget()->Close();
119  }
120}
121
122}  // namespace internal
123}  // namespace ash
124