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