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/external_protocol_dialog.h"
6
7#include "base/metrics/histogram.h"
8#include "base/strings/string_util.h"
9#include "base/strings/utf_string_conversions.h"
10#include "chrome/browser/external_protocol/external_protocol_handler.h"
11#include "chrome/browser/tab_contents/tab_util.h"
12#include "chrome/browser/ui/external_protocol_dialog_delegate.h"
13#include "chrome/browser/ui/views/constrained_window_views.h"
14#include "chrome/grit/generated_resources.h"
15#include "content/public/browser/web_contents.h"
16#include "ui/base/l10n/l10n_util.h"
17#include "ui/gfx/text_elider.h"
18#include "ui/views/controls/message_box_view.h"
19#include "ui/views/widget/widget.h"
20
21using content::WebContents;
22
23namespace {
24
25const int kMessageWidth = 400;
26
27}  // namespace
28
29///////////////////////////////////////////////////////////////////////////////
30// ExternalProtocolHandler
31
32// static
33void ExternalProtocolHandler::RunExternalProtocolDialog(
34    const GURL& url, int render_process_host_id, int routing_id) {
35  scoped_ptr<ExternalProtocolDialogDelegate> delegate(
36      new ExternalProtocolDialogDelegate(url,
37                                         render_process_host_id,
38                                         routing_id));
39  if (delegate->program_name().empty()) {
40    // ShellExecute won't do anything. Don't bother warning the user.
41    return;
42  }
43
44  // Windowing system takes ownership.
45  new ExternalProtocolDialog(delegate.PassAs<const ProtocolDialogDelegate>(),
46                             render_process_host_id,
47                             routing_id);
48}
49
50///////////////////////////////////////////////////////////////////////////////
51// ExternalProtocolDialog
52
53ExternalProtocolDialog::~ExternalProtocolDialog() {
54}
55
56//////////////////////////////////////////////////////////////////////////////
57// ExternalProtocolDialog, views::DialogDelegate implementation:
58
59int ExternalProtocolDialog::GetDefaultDialogButton() const {
60  return ui::DIALOG_BUTTON_CANCEL;
61}
62
63base::string16 ExternalProtocolDialog::GetDialogButtonLabel(
64    ui::DialogButton button) const {
65  if (button == ui::DIALOG_BUTTON_OK)
66    return l10n_util::GetStringUTF16(IDS_EXTERNAL_PROTOCOL_OK_BUTTON_TEXT);
67  else
68    return l10n_util::GetStringUTF16(IDS_EXTERNAL_PROTOCOL_CANCEL_BUTTON_TEXT);
69}
70
71base::string16 ExternalProtocolDialog::GetWindowTitle() const {
72  return delegate_->GetTitleText();
73}
74
75void ExternalProtocolDialog::DeleteDelegate() {
76  delete this;
77}
78
79bool ExternalProtocolDialog::Cancel() {
80  // We also get called back here if the user closes the dialog or presses
81  // escape. In these cases it would be preferable to ignore the state of the
82  // check box but MessageBox doesn't distinguish this from pressing the cancel
83  // button.
84  delegate_->DoCancel(delegate_->url(),
85                      message_box_view_->IsCheckBoxSelected());
86
87  // Returning true closes the dialog.
88  return true;
89}
90
91bool ExternalProtocolDialog::Accept() {
92  // We record how long it takes the user to accept an external protocol.  If
93  // users start accepting these dialogs too quickly, we should worry about
94  // clickjacking.
95  UMA_HISTOGRAM_LONG_TIMES("clickjacking.launch_url",
96                           base::TimeTicks::Now() - creation_time_);
97
98  delegate_->DoAccept(delegate_->url(),
99                      message_box_view_->IsCheckBoxSelected());
100
101  // Returning true closes the dialog.
102  return true;
103}
104
105views::View* ExternalProtocolDialog::GetContentsView() {
106  return message_box_view_;
107}
108
109views::Widget* ExternalProtocolDialog::GetWidget() {
110  return message_box_view_->GetWidget();
111}
112
113const views::Widget* ExternalProtocolDialog::GetWidget() const {
114  return message_box_view_->GetWidget();
115}
116
117///////////////////////////////////////////////////////////////////////////////
118// ExternalProtocolDialog, private:
119
120ExternalProtocolDialog::ExternalProtocolDialog(
121    scoped_ptr<const ProtocolDialogDelegate> delegate,
122    int render_process_host_id,
123    int routing_id)
124    : delegate_(delegate.Pass()),
125      render_process_host_id_(render_process_host_id),
126      routing_id_(routing_id),
127      creation_time_(base::TimeTicks::Now()) {
128  views::MessageBoxView::InitParams params(delegate_->GetMessageText());
129  params.message_width = kMessageWidth;
130  message_box_view_ = new views::MessageBoxView(params);
131  message_box_view_->SetCheckBoxLabel(delegate_->GetCheckboxText());
132
133  // Dialog is top level if we don't have a web_contents associated with us.
134  WebContents* web_contents = tab_util::GetWebContentsByID(
135      render_process_host_id_, routing_id_);
136  gfx::NativeWindow parent_window = NULL;
137  if (web_contents)
138    parent_window = web_contents->GetTopLevelNativeWindow();
139  CreateBrowserModalDialogViews(this, parent_window)->Show();
140}
141