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
UninstallView(int * user_selection,const base::Closure & quit_closure,bool show_delete_profile)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
~UninstallView()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
SetupControls()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
Accept()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
Cancel()131 bool UninstallView::Cancel() {
132 user_selection_ = chrome::RESULT_CODE_UNINSTALL_USER_CANCEL;
133 return true;
134 }
135
GetDialogButtonLabel(ui::DialogButton button) const136 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
ButtonPressed(views::Button * sender,const ui::Event & event)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
GetWindowTitle() const153 base::string16 UninstallView::GetWindowTitle() const {
154 return l10n_util::GetStringUTF16(IDS_UNINSTALL_CHROME);
155 }
156
GetItemCount() const157 int UninstallView::GetItemCount() const {
158 DCHECK(!browsers_->empty());
159 return browsers_->size();
160 }
161
GetItemAt(int index)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
ShowUninstallBrowserPrompt(bool show_delete_profile)171 int ShowUninstallBrowserPrompt(bool show_delete_profile) {
172 DCHECK_EQ(base::MessageLoop::TYPE_UI, base::MessageLoop::current()->type());
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
195