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/focus/accelerator_handler.h"
  22 #include "ui/views/layout/grid_layout.h"
  23 #include "ui/views/layout/layout_constants.h"
  24 #include "ui/views/widget/widget.h"
  25
  26 UninstallView::UninstallView(int* user_selection,
  27                              const base::Closure& quit_closure,
  28                              bool show_delete_profile)
  29     : confirm_label_(NULL),
  30       show_delete_profile_(show_delete_profile),
  31       delete_profile_(NULL),
  32       change_default_browser_(NULL),
  33       browsers_combo_(NULL),
  34       user_selection_(*user_selection),
  35       quit_closure_(quit_closure) {
  36   SetupControls();
  37 }
  38
  39 UninstallView::~UninstallView() {
  40   // Exit the message loop we were started with so that uninstall can continue.
  41   quit_closure_.Run();
  42
  43   // Delete Combobox as it holds a reference to us.
  44   delete browsers_combo_;
  45 }
  46
  47 void UninstallView::SetupControls() {
  48   using views::ColumnSet;
  49   using views::GridLayout;
  50
  51   GridLayout* layout = GridLayout::CreatePanel(this);
  52   SetLayoutManager(layout);
  53
  54   // Message to confirm uninstallation.
  55   int column_set_id = 0;
  56   ColumnSet* column_set = layout->AddColumnSet(column_set_id);
  57   column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  58                         GridLayout::USE_PREF, 0, 0);
  59   layout->StartRow(0, column_set_id);
  60   confirm_label_ = new views::Label(
  61       l10n_util::GetStringUTF16(IDS_UNINSTALL_VERIFY));
  62   confirm_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  63   layout->AddView(confirm_label_);
  64
  65   layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
  66
  67   // The "delete profile" check box.
  68   if (show_delete_profile_) {
  69     ++column_set_id;
  70     column_set = layout->AddColumnSet(column_set_id);
  71     column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
  72     column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  73                           GridLayout::USE_PREF, 0, 0);
  74     layout->StartRow(0, column_set_id);
  75     delete_profile_ = new views::Checkbox(
  76         l10n_util::GetStringUTF16(IDS_UNINSTALL_DELETE_PROFILE));
  77     layout->AddView(delete_profile_);
  78   }
  79
  80   // Set default browser combo box. If the default should not or cannot be
  81   // changed, widgets are not shown. We assume here that if Chrome cannot
  82   // be set programatically as default, neither can any other browser (for
  83   // instance because the OS doesn't permit that).
  84   BrowserDistribution* dist = BrowserDistribution::GetDistribution();
  85   if (dist->GetDefaultBrowserControlPolicy() !=
  86           BrowserDistribution::DEFAULT_BROWSER_UNSUPPORTED &&
  87       ShellIntegration::GetDefaultBrowser() == ShellIntegration::IS_DEFAULT &&
  88       (ShellIntegration::CanSetAsDefaultBrowser() !=
  89           ShellIntegration::SET_DEFAULT_INTERACTIVE)) {
  90     browsers_.reset(new BrowsersMap());
  91     ShellUtil::GetRegisteredBrowsers(dist, browsers_.get());
  92     if (!browsers_->empty()) {
  93       layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
  94
  95       ++column_set_id;
  96       column_set = layout->AddColumnSet(column_set_id);
  97       column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
  98       column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  99                             GridLayout::USE_PREF, 0, 0);
 100       column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
 101       column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
 102                             GridLayout::USE_PREF, 0, 0);
 103       layout->StartRow(0, column_set_id);
 104       change_default_browser_ = new views::Checkbox(
 105           l10n_util::GetStringUTF16(IDS_UNINSTALL_SET_DEFAULT_BROWSER));
 106       change_default_browser_->set_listener(this);
 107       layout->AddView(change_default_browser_);
 108       browsers_combo_ = new views::Combobox(this);
 109       layout->AddView(browsers_combo_);
 110       browsers_combo_->SetEnabled(false);
 111     }
 112   }
 113
 114   layout->AddPaddingRow(0, views::kRelatedControlSmallVerticalSpacing);
 115 }
 116
 117 bool UninstallView::Accept() {
 118   user_selection_ = content::RESULT_CODE_NORMAL_EXIT;
 119   if (show_delete_profile_ && delete_profile_->checked())
 120     user_selection_ = chrome::RESULT_CODE_UNINSTALL_DELETE_PROFILE;
 121   if (change_default_browser_ && change_default_browser_->checked()) {
 122     BrowsersMap::const_iterator i = browsers_->begin();
 123     std::advance(i, browsers_combo_->selected_index());
 124     base::LaunchOptions options;
 125     options.start_hidden = true;
 126     base::LaunchProcess(i->second, options, NULL);
 127   }
 128   return true;
 129 }
 130
 131 bool UninstallView::Cancel() {
 132   user_selection_ = chrome::RESULT_CODE_UNINSTALL_USER_CANCEL;
 133   return true;
 134 }
 135
 136 base::string16 UninstallView::GetDialogButtonLabel(
 137     ui::DialogButton button) const {
 138   // Label the OK button 'Uninstall'; Cancel remains the same.
 139   if (button == ui::DIALOG_BUTTON_OK)
 140     return l10n_util::GetStringUTF16(IDS_UNINSTALL_BUTTON_TEXT);
 141   return views::DialogDelegateView::GetDialogButtonLabel(button);
 142 }
 143
 144 void UninstallView::ButtonPressed(views::Button* sender,
 145                                   const ui::Event& event) {
 146   if (change_default_browser_ == sender) {
 147     // Disable the browsers combobox if the user unchecks the checkbox.
 148     DCHECK(browsers_combo_);
 149     browsers_combo_->SetEnabled(change_default_browser_->checked());
 150   }
 151 }
 152
 153 base::string16 UninstallView::GetWindowTitle() const {
 154   return l10n_util::GetStringUTF16(IDS_UNINSTALL_CHROME);
 155 }
 156
 157 int UninstallView::GetItemCount() const {
 158   DCHECK(!browsers_->empty());
 159   return browsers_->size();
 160 }
 161
 162 base::string16 UninstallView::GetItemAt(int index) {
 163   DCHECK_LT(index, static_cast<int>(browsers_->size()));
 164   BrowsersMap::const_iterator i = browsers_->begin();
 165   std::advance(i, index);
 166   return i->first;
 167 }
 168
 169 namespace chrome {
 170
 171 int ShowUninstallBrowserPrompt(bool show_delete_profile) {
 172   DCHECK(base::MessageLoopForUI::IsCurrent());
 173   int result = content::RESULT_CODE_NORMAL_EXIT;
 174   views::AcceleratorHandler accelerator_handler;
 175
 176   // Take a reference on g_browser_process while showing the dialog. This is
 177   // done because the dialog uses the views framework which may increment
 178   // and decrement the module ref count during the course of displaying UI and
 179   // this code can be called while the module refcount is still at 0.
 180   // Note that this reference is never released, as this code is shown on a path
 181   // that immediately exits Chrome anyway.
 182   // See http://crbug.com/241366 for details.
 183   g_browser_process->AddRefModule();
 184
 185   base::RunLoop run_loop(&accelerator_handler);
 186   UninstallView* view = new UninstallView(&result,
 187                                           run_loop.QuitClosure(),
 188                                           show_delete_profile);
 189   views::DialogDelegate::CreateDialogWidget(view, NULL, NULL)->Show();
 190   run_loop.Run();
 191   return result;
 192 }
 193
 194 }  // namespace chrome