chrome/browser/ui/views/uninstall_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/uninstall_view.h"
   6
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/process/launch.h"
   9 #include "base/run_loop.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/shell_integration.h"
  12 #include "chrome/browser/ui/uninstall_browser_prompt.h"
  13 #include "chrome/common/chrome_result_codes.h"
  14 #include "chrome/installer/util/browser_distribution.h"
  15 #include "chrome/installer/util/shell_util.h"
  16 #include "grit/chromium_strings.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18 #include "ui/views/controls/button/checkbox.h"
  19 #include "ui/views/controls/combobox/combobox.h"
  20 #include "ui/views/controls/label.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 UninstallView::UninstallView(int* user_selection,
  26                              const base::Closure& quit_closure,
  27                              bool show_delete_profile)
  28     : confirm_label_(NULL),
  29       show_delete_profile_(show_delete_profile),
  30       delete_profile_(NULL),
  31       change_default_browser_(NULL),
  32       browsers_combo_(NULL),
  33       user_selection_(*user_selection),
  34       quit_closure_(quit_closure) {
  35   SetupControls();
  36 }
  37
  38 UninstallView::~UninstallView() {
  39   // Exit the message loop we were started with so that uninstall can continue.
  40   quit_closure_.Run();
  41
  42   // Delete Combobox as it holds a reference to us.
  43   delete browsers_combo_;
  44 }
  45
  46 void UninstallView::SetupControls() {
  47   using views::ColumnSet;
  48   using views::GridLayout;
  49
  50   GridLayout* layout = GridLayout::CreatePanel(this);
  51   SetLayoutManager(layout);
  52
  53   // Message to confirm uninstallation.
  54   int column_set_id = 0;
  55   ColumnSet* column_set = layout->AddColumnSet(column_set_id);
  56   column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  57                         GridLayout::USE_PREF, 0, 0);
  58   layout->StartRow(0, column_set_id);
  59   confirm_label_ = new views::Label(
  60       l10n_util::GetStringUTF16(IDS_UNINSTALL_VERIFY));
  61   confirm_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  62   layout->AddView(confirm_label_);
  63
  64   layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
  65
  66   // The "delete profile" check box.
  67   if (show_delete_profile_) {
  68     ++column_set_id;
  69     column_set = layout->AddColumnSet(column_set_id);
  70     column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
  71     column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  72                           GridLayout::USE_PREF, 0, 0);
  73     layout->StartRow(0, column_set_id);
  74     delete_profile_ = new views::Checkbox(
  75         l10n_util::GetStringUTF16(IDS_UNINSTALL_DELETE_PROFILE));
  76     layout->AddView(delete_profile_);
  77   }
  78
  79   // Set default browser combo box. If the default should not or cannot be
  80   // changed, widgets are not shown. We assume here that if Chrome cannot
  81   // be set programatically as default, neither can any other browser (for
  82   // instance because the OS doesn't permit that).
  83   BrowserDistribution* dist = BrowserDistribution::GetDistribution();
  84   if (dist->GetDefaultBrowserControlPolicy() !=
  85           BrowserDistribution::DEFAULT_BROWSER_UNSUPPORTED &&
  86       ShellIntegration::GetDefaultBrowser() == ShellIntegration::IS_DEFAULT &&
  87       (ShellIntegration::CanSetAsDefaultBrowser() !=
  88           ShellIntegration::SET_DEFAULT_INTERACTIVE)) {
  89     browsers_.reset(new BrowsersMap());
  90     ShellUtil::GetRegisteredBrowsers(dist, browsers_.get());
  91     if (!browsers_->empty()) {
  92       layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
  93
  94       ++column_set_id;
  95       column_set = layout->AddColumnSet(column_set_id);
  96       column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
  97       column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  98                             GridLayout::USE_PREF, 0, 0);
  99       column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
 100       column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
 101                             GridLayout::USE_PREF, 0, 0);
 102       layout->StartRow(0, column_set_id);
 103       change_default_browser_ = new views::Checkbox(
 104           l10n_util::GetStringUTF16(IDS_UNINSTALL_SET_DEFAULT_BROWSER));
 105       change_default_browser_->set_listener(this);
 106       layout->AddView(change_default_browser_);
 107       browsers_combo_ = new views::Combobox(this);
 108       layout->AddView(browsers_combo_);
 109       browsers_combo_->SetEnabled(false);
 110     }
 111   }
 112
 113   layout->AddPaddingRow(0, views::kRelatedControlSmallVerticalSpacing);
 114 }
 115
 116 bool UninstallView::Accept() {
 117   user_selection_ = content::RESULT_CODE_NORMAL_EXIT;
 118   if (show_delete_profile_ && delete_profile_->checked())
 119     user_selection_ = chrome::RESULT_CODE_UNINSTALL_DELETE_PROFILE;
 120   if (change_default_browser_ && change_default_browser_->checked()) {
 121     BrowsersMap::const_iterator i = browsers_->begin();
 122     std::advance(i, browsers_combo_->selected_index());
 123     base::LaunchOptions options;
 124     options.start_hidden = true;
 125     base::LaunchProcess(i->second, options, NULL);
 126   }
 127   return true;
 128 }
 129
 130 bool UninstallView::Cancel() {
 131   user_selection_ = chrome::RESULT_CODE_UNINSTALL_USER_CANCEL;
 132   return true;
 133 }
 134
 135 base::string16 UninstallView::GetDialogButtonLabel(
 136     ui::DialogButton button) const {
 137   // Label the OK button 'Uninstall'; Cancel remains the same.
 138   if (button == ui::DIALOG_BUTTON_OK)
 139     return l10n_util::GetStringUTF16(IDS_UNINSTALL_BUTTON_TEXT);
 140   return views::DialogDelegateView::GetDialogButtonLabel(button);
 141 }
 142
 143 void UninstallView::ButtonPressed(views::Button* sender,
 144                                   const ui::Event& event) {
 145   if (change_default_browser_ == sender) {
 146     // Disable the browsers combobox if the user unchecks the checkbox.
 147     DCHECK(browsers_combo_);
 148     browsers_combo_->SetEnabled(change_default_browser_->checked());
 149   }
 150 }
 151
 152 base::string16 UninstallView::GetWindowTitle() const {
 153   return l10n_util::GetStringUTF16(IDS_UNINSTALL_CHROME);
 154 }
 155
 156 int UninstallView::GetItemCount() const {
 157   DCHECK(!browsers_->empty());
 158   return browsers_->size();
 159 }
 160
 161 base::string16 UninstallView::GetItemAt(int index) {
 162   DCHECK_LT(index, static_cast<int>(browsers_->size()));
 163   BrowsersMap::const_iterator i = browsers_->begin();
 164   std::advance(i, index);
 165   return i->first;
 166 }
 167
 168 namespace chrome {
 169
 170 int ShowUninstallBrowserPrompt(bool show_delete_profile) {
 171   DCHECK(base::MessageLoopForUI::IsCurrent());
 172   int result = content::RESULT_CODE_NORMAL_EXIT;
 173
 174   // Take a reference on g_browser_process while showing the dialog. This is
 175   // done because the dialog uses the views framework which may increment
 176   // and decrement the module ref count during the course of displaying UI and
 177   // this code can be called while the module refcount is still at 0.
 178   // Note that this reference is never released, as this code is shown on a path
 179   // that immediately exits Chrome anyway.
 180   // See http://crbug.com/241366 for details.
 181   g_browser_process->AddRefModule();
 182
 183   base::RunLoop run_loop;
 184   UninstallView* view = new UninstallView(&result,
 185                                           run_loop.QuitClosure(),
 186                                           show_delete_profile);
 187   views::DialogDelegate::CreateDialogWidget(view, NULL, NULL)->Show();
 188   run_loop.Run();
 189   return result;
 190 }
 191
 192 }  // namespace chrome