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/common/pref_names.h"
  11 #include "content/public/browser/page_navigator.h"
  12 #include "grit/generated_resources.h"
  13 #include "ui/base/l10n/l10n_util.h"
  14 #include "ui/base/resource/resource_bundle.h"
  15 #include "ui/base/window_open_disposition.h"
  16 #include "ui/gfx/sys_color_change_listener.h"
  17 #include "ui/views/bubble/bubble_delegate.h"
  18 #include "ui/views/controls/label.h"
  19 #include "ui/views/controls/link.h"
  20 #include "ui/views/controls/link_listener.h"
  21 #include "ui/views/layout/grid_layout.h"
  22 #include "ui/views/layout/layout_constants.h"
  23 #include "ui/views/widget/widget.h"
  24
  25 namespace {
  26
  27 const char kHighContrastExtensionUrl[] =
  28     "https://chrome.google.com/webstore/detail/djcfdncoelnlbldjfhinnjlhdjlikmph";
  29 const char kDarkThemeSearchUrl[] =
  30     "https://chrome.google.com/webstore/search-themes/dark";
  31 const char kLearnMoreUrl[] =
  32     "https://groups.google.com/a/googleproductforums.com/d/topic/chrome/Xrco2HsXS-8/discussion";
  33 const int kBubbleWidth = 500;
  34
  35 class InvertBubbleView : public views::BubbleDelegateView,
  36                          public views::LinkListener {
  37  public:
  38   InvertBubbleView(Browser* browser, views::View* anchor_view);
  39   virtual ~InvertBubbleView();
  40
  41  private:
  42   // Overridden from views::BubbleDelegateView:
  43   virtual void Init() OVERRIDE;
  44   virtual gfx::Rect GetAnchorRect() OVERRIDE;
  45
  46   // Overridden from views::LinkListener:
  47   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
  48
  49   void OpenLink(const std::string& url, int event_flags);
  50
  51   Browser* browser_;
  52   views::Link* high_contrast_;
  53   views::Link* dark_theme_;
  54   views::Link* learn_more_;
  55   views::Link* close_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(InvertBubbleView);
  58 };
  59
  60 InvertBubbleView::InvertBubbleView(Browser* browser, views::View* anchor_view)
  61     : views::BubbleDelegateView(anchor_view, views::BubbleBorder::TOP_LEFT),
  62       browser_(browser),
  63       high_contrast_(NULL),
  64       dark_theme_(NULL),
  65       learn_more_(NULL),
  66       close_(NULL) {
  67 }
  68
  69 InvertBubbleView::~InvertBubbleView() {
  70 }
  71
  72 void InvertBubbleView::Init() {
  73   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  74   const gfx::FontList& original_font_list =
  75       rb.GetFontList(ui::ResourceBundle::MediumFont);
  76
  77   views::Label* title = new views::Label(
  78       l10n_util::GetStringUTF16(IDS_HIGH_CONTRAST_NOTIFICATION),
  79       original_font_list.Derive(2, gfx::Font::BOLD));
  80   title->SetMultiLine(true);
  81   title->SizeToFit(kBubbleWidth);
  82
  83   learn_more_ = new views::Link(l10n_util::GetStringUTF16(IDS_LEARN_MORE));
  84   learn_more_->SetFontList(original_font_list);
  85   learn_more_->set_listener(this);
  86
  87   high_contrast_ =
  88       new views::Link(l10n_util::GetStringUTF16(IDS_HIGH_CONTRAST_EXT));
  89   high_contrast_->SetFontList(original_font_list);
  90   high_contrast_->set_listener(this);
  91
  92   dark_theme_ =
  93       new views::Link(l10n_util::GetStringUTF16(IDS_DARK_THEME));
  94   dark_theme_->SetFontList(original_font_list);
  95   dark_theme_->set_listener(this);
  96
  97   close_ = new views::Link(l10n_util::GetStringUTF16(IDS_CLOSE));
  98   close_->SetFontList(original_font_list);
  99   close_->set_listener(this);
 100
 101   views::GridLayout* layout = views::GridLayout::CreatePanel(this);
 102   SetLayoutManager(layout);
 103
 104   views::ColumnSet* columns = layout->AddColumnSet(0);
 105   for (int i = 0; i < 4; i++) {
 106     columns->AddColumn(views::GridLayout::LEADING,
 107                        views::GridLayout::LEADING, 0,
 108                        views::GridLayout::USE_PREF, 0, 0);
 109   }
 110
 111   layout->StartRow(0, 0);
 112   layout->AddView(title, 4, 1);
 113   layout->StartRowWithPadding(0, 0, 0,
 114                               views::kRelatedControlSmallVerticalSpacing);
 115   layout->AddView(high_contrast_);
 116   layout->AddView(dark_theme_);
 117   layout->AddView(learn_more_);
 118   layout->AddView(close_);
 119
 120   // Switching to high-contrast mode has a nasty habit of causing Chrome
 121   // top-level windows to lose focus, so closing the bubble on deactivate
 122   // makes it disappear before the user has even seen it. This forces the
 123   // user to close it explicitly, which should be okay because it affects
 124   // a small minority of users, and only once.
 125   set_close_on_deactivate(false);
 126   set_move_with_anchor(true);
 127 }
 128
 129 gfx::Rect InvertBubbleView::GetAnchorRect() {
 130   // Set the height to 0 so we display the bubble at the top of the
 131   // anchor rect.
 132   gfx::Rect rect(BubbleDelegateView::GetAnchorRect());
 133   rect.set_height(0);
 134   return rect;
 135 }
 136
 137 void InvertBubbleView::LinkClicked(views::Link* source, int event_flags) {
 138   if (source == high_contrast_)
 139     OpenLink(kHighContrastExtensionUrl, event_flags);
 140   else if (source == dark_theme_)
 141     OpenLink(kDarkThemeSearchUrl, event_flags);
 142   else if (source == learn_more_)
 143     OpenLink(kLearnMoreUrl, event_flags);
 144   else if (source == close_)
 145     GetWidget()->Close();
 146   else
 147     NOTREACHED();
 148 }
 149
 150 void InvertBubbleView::OpenLink(const std::string& url, int event_flags) {
 151   WindowOpenDisposition disposition =
 152       ui::DispositionFromEventFlags(event_flags);
 153   content::OpenURLParams params(
 154       GURL(url), content::Referrer(),
 155       disposition == CURRENT_TAB ? NEW_FOREGROUND_TAB : disposition,
 156       content::PAGE_TRANSITION_LINK, false);
 157   browser_->OpenURL(params);
 158 }
 159
 160 }  // namespace
 161
 162 namespace chrome {
 163
 164 void MaybeShowInvertBubbleView(Browser* browser, views::View* anchor_view) {
 165   PrefService* pref_service = browser->profile()->GetPrefs();
 166   if (gfx::IsInvertedColorScheme() &&
 167       !pref_service->GetBoolean(prefs::kInvertNotificationShown)) {
 168     pref_service->SetBoolean(prefs::kInvertNotificationShown, true);
 169     InvertBubbleView* delegate = new InvertBubbleView(browser, anchor_view);
 170     views::BubbleDelegateView::CreateBubble(delegate);
 171     delegate->StartFade(true);
 172   }
 173 }
 174
 175 }  // namespace chrome