uninstall_view.cc revision 9ab5563a3196760eb381d102cbb2bc0f7abc6a50 
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_util.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
26UninstallView::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
39UninstallView::~UninstallView() {
40  // Exit the message loop we were started with so that uninstall can continue.
41  quit_closure_.Run();
42}
43
44void UninstallView::SetupControls() {
45  using views::ColumnSet;
46  using views::GridLayout;
47
48  GridLayout* layout = GridLayout::CreatePanel(this);
49  SetLayoutManager(layout);
50
51  // Message to confirm uninstallation.
52  int column_set_id = 0;
53  ColumnSet* column_set = layout->AddColumnSet(column_set_id);
54  column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
55                        GridLayout::USE_PREF, 0, 0);
56  layout->StartRow(0, column_set_id);
57  confirm_label_ = new views::Label(
58      l10n_util::GetStringUTF16(IDS_UNINSTALL_VERIFY));
59  confirm_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
60  layout->AddView(confirm_label_);
61
62  layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
63
64  // The "delete profile" check box.
65  if (show_delete_profile_) {
66    ++column_set_id;
67    column_set = layout->AddColumnSet(column_set_id);
68    column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
69    column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
70                          GridLayout::USE_PREF, 0, 0);
71    layout->StartRow(0, column_set_id);
72    delete_profile_ = new views::Checkbox(
73        l10n_util::GetStringUTF16(IDS_UNINSTALL_DELETE_PROFILE));
74    layout->AddView(delete_profile_);
75  }
76
77  // Set default browser combo box. If the default should not or cannot be
78  // changed, widgets are not shown. We assume here that if Chrome cannot
79  // be set programatically as default, neither can any other browser (for
80  // instance because the OS doesn't permit that).
81  BrowserDistribution* dist = BrowserDistribution::GetDistribution();
82  if (dist->CanSetAsDefault() &&
83      ShellIntegration::GetDefaultBrowser() == ShellIntegration::IS_DEFAULT &&
84      (ShellIntegration::CanSetAsDefaultBrowser() !=
85          ShellIntegration::SET_DEFAULT_INTERACTIVE)) {
86    browsers_.reset(new BrowsersMap());
87    ShellUtil::GetRegisteredBrowsers(dist, browsers_.get());
88    if (!browsers_->empty()) {
89      layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
90
91      ++column_set_id;
92      column_set = layout->AddColumnSet(column_set_id);
93      column_set->AddPaddingColumn(0, views::kPanelHorizIndentation);
94      column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
95                            GridLayout::USE_PREF, 0, 0);
96      column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
97      column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
98                            GridLayout::USE_PREF, 0, 0);
99      layout->StartRow(0, column_set_id);
100      change_default_browser_ = new views::Checkbox(
101          l10n_util::GetStringUTF16(IDS_UNINSTALL_SET_DEFAULT_BROWSER));
102      change_default_browser_->set_listener(this);
103      layout->AddView(change_default_browser_);
104      browsers_combo_ = new views::Combobox(this);
105      layout->AddView(browsers_combo_);
106      browsers_combo_->SetEnabled(false);
107    }
108  }
109
110  layout->AddPaddingRow(0, views::kRelatedControlSmallVerticalSpacing);
111}
112
113bool UninstallView::Accept() {
114  user_selection_ = content::RESULT_CODE_NORMAL_EXIT;
115  if (show_delete_profile_ && delete_profile_->checked())
116    user_selection_ = chrome::RESULT_CODE_UNINSTALL_DELETE_PROFILE;
117  if (change_default_browser_ && change_default_browser_->checked()) {
118    BrowsersMap::const_iterator i = browsers_->begin();
119    std::advance(i, browsers_combo_->selected_index());
120    base::LaunchOptions options;
121    options.start_hidden = true;
122    base::LaunchProcess(i->second, options, NULL);
123  }
124  return true;
125}
126
127bool UninstallView::Cancel() {
128  user_selection_ = chrome::RESULT_CODE_UNINSTALL_USER_CANCEL;
129  return true;
130}
131
132string16 UninstallView::GetDialogButtonLabel(ui::DialogButton button) const {
133  // Label the OK button 'Uninstall'; Cancel remains the same.
134  if (button == ui::DIALOG_BUTTON_OK)
135    return l10n_util::GetStringUTF16(IDS_UNINSTALL_BUTTON_TEXT);
136  return views::DialogDelegateView::GetDialogButtonLabel(button);
137}
138
139void UninstallView::ButtonPressed(views::Button* sender,
140                                  const ui::Event& event) {
141  if (change_default_browser_ == sender) {
142    // Disable the browsers combobox if the user unchecks the checkbox.
143    DCHECK(browsers_combo_);
144    browsers_combo_->SetEnabled(change_default_browser_->checked());
145  }
146}
147
148string16 UninstallView::GetWindowTitle() const {
149  return l10n_util::GetStringUTF16(IDS_UNINSTALL_CHROME);
150}
151
152int UninstallView::GetItemCount() const {
153  DCHECK(!browsers_->empty());
154  return browsers_->size();
155}
156
157string16 UninstallView::GetItemAt(int index) {
158  DCHECK_LT(index, static_cast<int>(browsers_->size()));
159  BrowsersMap::const_iterator i = browsers_->begin();
160  std::advance(i, index);
161  return i->first;
162}
163
164namespace chrome {
165
166int ShowUninstallBrowserPrompt(bool show_delete_profile) {
167  DCHECK_EQ(base::MessageLoop::TYPE_UI, base::MessageLoop::current()->type());
168  int result = content::RESULT_CODE_NORMAL_EXIT;
169  views::AcceleratorHandler accelerator_handler;
170
171  // Take a reference on g_browser_process while showing the dialog. This is
172  // done because the dialog uses the views framework which may increment
173  // and decrement the module ref count during the course of displaying UI and
174  // this code can be called while the module refcount is still at 0.
175  // Note that this reference is never released, as this code is shown on a path
176  // that immediately exits Chrome anyway.
177  // See http://crbug.com/241366 for details.
178  g_browser_process->AddRefModule();
179
180  base::RunLoop run_loop(&accelerator_handler);
181  UninstallView* view = new UninstallView(&result,
182                                          run_loop.QuitClosure(),
183                                          show_delete_profile);
184  views::DialogDelegate::CreateDialogWidget(view, NULL, NULL)->Show();
185  run_loop.Run();
186  return result;
187}
188
189}  // namespace chrome
190