src/chrome/browser/ui/views/accessibility/invert_bubble_view.cc

   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
  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
  70 InvertBubbleView::~InvertBubbleView() {
  71 }
  72
  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
 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
 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
 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