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 "chrome/browser/ui/views/accessibility/invert_bubble_view.h"
6
7 #include "base/prefs/pref_service.h"
8 #include "chrome/browser/profiles/profile.h"
9 #include "chrome/browser/ui/browser.h"
10 #include "chrome/browser/ui/views/frame/browser_view.h"
11 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
12 #include "chrome/common/pref_names.h"
13 #include "chrome/grit/generated_resources.h"
14 #include "content/public/browser/page_navigator.h"
15 #include "grit/components_strings.h"
16 #include "ui/base/l10n/l10n_util.h"
17 #include "ui/base/resource/resource_bundle.h"
18 #include "ui/base/window_open_disposition.h"
19 #include "ui/gfx/sys_color_change_listener.h"
20 #include "ui/views/bubble/bubble_delegate.h"
21 #include "ui/views/controls/label.h"
22 #include "ui/views/controls/link.h"
23 #include "ui/views/controls/link_listener.h"
24 #include "ui/views/layout/grid_layout.h"
25 #include "ui/views/layout/layout_constants.h"
26 #include "ui/views/widget/widget.h"
27
28 namespace {
29
30 const char kHighContrastExtensionUrl[] =
31 "https://chrome.google.com/webstore/detail/djcfdncoelnlbldjfhinnjlhdjlikmph";
32 const char kDarkThemeSearchUrl[] =
33 "https://chrome.google.com/webstore/search-themes/dark";
34 const char kLearnMoreUrl[] =
35 "https://groups.google.com/a/googleproductforums.com/d/topic/chrome/Xrco2HsXS-8/discussion";
36
37 class InvertBubbleView : public views::BubbleDelegateView,
38 public views::LinkListener {
39 public:
40 InvertBubbleView(Browser* browser, views::View* anchor_view);
41 virtual ~InvertBubbleView();
42
43 private:
44 // Overridden from views::BubbleDelegateView:
45 virtual void Init() OVERRIDE;
46
47 // Overridden from views::LinkListener:
48 virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
49
50 void OpenLink(const std::string& url, int event_flags);
51
52 Browser* browser_;
53 views::Link* high_contrast_;
54 views::Link* dark_theme_;
55 views::Link* learn_more_;
56 views::Link* close_;
57
58 DISALLOW_COPY_AND_ASSIGN(InvertBubbleView);
59 };
60
InvertBubbleView(Browser * browser,views::View * anchor_view)61 InvertBubbleView::InvertBubbleView(Browser* browser, views::View* anchor_view)
62 : views::BubbleDelegateView(anchor_view, views::BubbleBorder::TOP_RIGHT),
63 browser_(browser),
64 high_contrast_(NULL),
65 dark_theme_(NULL),
66 learn_more_(NULL),
67 close_(NULL) {
68 }
69
~InvertBubbleView()70 InvertBubbleView::~InvertBubbleView() {
71 }
72
Init()73 void InvertBubbleView::Init() {
74 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
75 const gfx::FontList& original_font_list =
76 rb.GetFontList(ui::ResourceBundle::MediumFont);
77
78 views::Label* title = new views::Label(
79 base::string16(), original_font_list.Derive(2, gfx::Font::BOLD));
80 title->SetMultiLine(true);
81
82 learn_more_ = new views::Link(l10n_util::GetStringUTF16(IDS_LEARN_MORE));
83 learn_more_->SetFontList(original_font_list);
84 learn_more_->set_listener(this);
85
86 high_contrast_ =
87 new views::Link(l10n_util::GetStringUTF16(IDS_HIGH_CONTRAST_EXT));
88 high_contrast_->SetFontList(original_font_list);
89 high_contrast_->set_listener(this);
90
91 dark_theme_ = new views::Link(l10n_util::GetStringUTF16(IDS_DARK_THEME));
92 dark_theme_->SetFontList(original_font_list);
93 dark_theme_->set_listener(this);
94
95 close_ = new views::Link(l10n_util::GetStringUTF16(IDS_CLOSE));
96 close_->SetFontList(original_font_list);
97 close_->set_listener(this);
98
99 views::GridLayout* layout = views::GridLayout::CreatePanel(this);
100 SetLayoutManager(layout);
101
102 views::ColumnSet* columns = layout->AddColumnSet(0);
103 for (int i = 0; i < 4; i++) {
104 columns->AddColumn(views::GridLayout::LEADING,
105 views::GridLayout::LEADING, 0,
106 views::GridLayout::USE_PREF, 0, 0);
107 }
108
109 layout->StartRow(0, 0);
110 layout->AddView(title, 4, 1);
111 layout->StartRowWithPadding(0, 0, 0,
112 views::kRelatedControlSmallVerticalSpacing);
113 layout->AddView(high_contrast_);
114 layout->AddView(dark_theme_);
115 layout->AddView(learn_more_);
116 layout->AddView(close_);
117
118 // Fit the message to the width of the links in the bubble.
119 const gfx::Size size(GetPreferredSize());
120 title->SetText(l10n_util::GetStringUTF16(IDS_HIGH_CONTRAST_NOTIFICATION));
121 title->SizeToFit(size.width());
122
123 // Switching to high-contrast mode has a nasty habit of causing Chrome
124 // top-level windows to lose focus, so closing the bubble on deactivate
125 // makes it disappear before the user has even seen it. This forces the
126 // user to close it explicitly, which should be okay because it affects
127 // a small minority of users, and only once.
128 set_close_on_deactivate(false);
129 }
130
LinkClicked(views::Link * source,int event_flags)131 void InvertBubbleView::LinkClicked(views::Link* source, int event_flags) {
132 if (source == high_contrast_)
133 OpenLink(kHighContrastExtensionUrl, event_flags);
134 else if (source == dark_theme_)
135 OpenLink(kDarkThemeSearchUrl, event_flags);
136 else if (source == learn_more_)
137 OpenLink(kLearnMoreUrl, event_flags);
138 else if (source == close_)
139 GetWidget()->Close();
140 else
141 NOTREACHED();
142 }
143
OpenLink(const std::string & url,int event_flags)144 void InvertBubbleView::OpenLink(const std::string& url, int event_flags) {
145 WindowOpenDisposition disposition =
146 ui::DispositionFromEventFlags(event_flags);
147 content::OpenURLParams params(
148 GURL(url), content::Referrer(),
149 disposition == CURRENT_TAB ? NEW_FOREGROUND_TAB : disposition,
150 ui::PAGE_TRANSITION_LINK, false);
151 browser_->OpenURL(params);
152 }
153
154 } // namespace
155
156 namespace chrome {
157
MaybeShowInvertBubbleView(BrowserView * browser_view)158 void MaybeShowInvertBubbleView(BrowserView* browser_view) {
159 Browser* browser = browser_view->browser();
160 PrefService* pref_service = browser->profile()->GetPrefs();
161 views::View* anchor = browser_view->toolbar()->app_menu();
162 if (gfx::IsInvertedColorScheme() && anchor && anchor->GetWidget() &&
163 !pref_service->GetBoolean(prefs::kInvertNotificationShown)) {
164 pref_service->SetBoolean(prefs::kInvertNotificationShown, true);
165 InvertBubbleView* delegate = new InvertBubbleView(browser, anchor);
166 views::BubbleDelegateView::CreateBubble(delegate)->Show();
167 }
168 }
169
170 } // namespace chrome
171