components/app_modal/javascript_dialog_manager.cc

   1 // Copyright 2014 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 "components/app_modal/javascript_dialog_manager.h"
   6
   7 #include "base/bind.h"
   8 #include "base/i18n/rtl.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "components/app_modal/app_modal_dialog.h"
  11 #include "components/app_modal/app_modal_dialog_queue.h"
  12 #include "components/app_modal/javascript_app_modal_dialog.h"
  13 #include "components/app_modal/javascript_dialog_extensions_client.h"
  14 #include "components/app_modal/javascript_native_dialog_factory.h"
  15 #include "components/app_modal/native_app_modal_dialog.h"
  16 #include "components/url_formatter/url_formatter.h"
  17 #include "content/public/common/javascript_message_type.h"
  18 #include "grit/components_strings.h"
  19 #include "net/base/net_util.h"
  20 #include "ui/base/l10n/l10n_util.h"
  21
  22 namespace app_modal {
  23 namespace {
  24
  25 class DefaultExtensionsClient : public JavaScriptDialogExtensionsClient {
  26  public:
  27   DefaultExtensionsClient() {}
  28   ~DefaultExtensionsClient() override {}
  29
  30  private:
  31   // JavaScriptDialogExtensionsClient:
  32   void OnDialogOpened(content::WebContents* web_contents) override {}
  33   void OnDialogClosed(content::WebContents* web_contents) override {}
  34   bool GetExtensionName(content::WebContents* web_contents,
  35                         const GURL& origin_url,
  36                         std::string* name_out) override {
  37     return false;
  38   }
  39
  40   DISALLOW_COPY_AND_ASSIGN(DefaultExtensionsClient);
  41 };
  42
  43 bool ShouldDisplaySuppressCheckbox(
  44     ChromeJavaScriptDialogExtraData* extra_data) {
  45   return extra_data->has_already_shown_a_dialog_;
  46 }
  47
  48 }  // namespace
  49
  50 ////////////////////////////////////////////////////////////////////////////////
  51 // JavaScriptDialogManager, public:
  52
  53 // static
  54 JavaScriptDialogManager* JavaScriptDialogManager::GetInstance() {
  55   return Singleton<JavaScriptDialogManager>::get();
  56 }
  57
  58 void JavaScriptDialogManager::SetNativeDialogFactory(
  59     scoped_ptr<JavaScriptNativeDialogFactory> factory) {
  60   native_dialog_factory_ = factory.Pass();
  61 }
  62
  63 void JavaScriptDialogManager::SetExtensionsClient(
  64     scoped_ptr<JavaScriptDialogExtensionsClient> extensions_client) {
  65   extensions_client_ = extensions_client.Pass();
  66 }
  67
  68 ////////////////////////////////////////////////////////////////////////////////
  69 // JavaScriptDialogManager, private:
  70
  71 JavaScriptDialogManager::JavaScriptDialogManager()
  72     : extensions_client_(new DefaultExtensionsClient) {
  73 }
  74
  75 JavaScriptDialogManager::~JavaScriptDialogManager() {
  76 }
  77
  78 void JavaScriptDialogManager::RunJavaScriptDialog(
  79     content::WebContents* web_contents,
  80     const GURL& origin_url,
  81     const std::string& accept_lang,
  82     content::JavaScriptMessageType message_type,
  83     const base::string16& message_text,
  84     const base::string16& default_prompt_text,
  85     const DialogClosedCallback& callback,
  86     bool* did_suppress_message)  {
  87   *did_suppress_message = false;
  88
  89   ChromeJavaScriptDialogExtraData* extra_data =
  90       &javascript_dialog_extra_data_
  91           [JavaScriptAppModalDialog::GetSerializedOriginForWebContents(
  92               web_contents)];
  93
  94   if (extra_data->suppress_javascript_messages_) {
  95     *did_suppress_message = true;
  96     return;
  97   }
  98
  99   bool is_alert = message_type == content::JAVASCRIPT_MESSAGE_TYPE_ALERT;
 100   base::string16 dialog_title =
 101       GetTitle(web_contents, origin_url, accept_lang, is_alert);
 102
 103   extensions_client_->OnDialogOpened(web_contents);
 104
 105   AppModalDialogQueue::GetInstance()->AddDialog(new JavaScriptAppModalDialog(
 106       web_contents,
 107       &javascript_dialog_extra_data_,
 108       dialog_title,
 109       message_type,
 110       message_text,
 111       default_prompt_text,
 112       ShouldDisplaySuppressCheckbox(extra_data),
 113       false,  // is_before_unload_dialog
 114       false,  // is_reload
 115       base::Bind(&JavaScriptDialogManager::OnDialogClosed,
 116                  base::Unretained(this), web_contents, callback)));
 117 }
 118
 119 void JavaScriptDialogManager::RunBeforeUnloadDialog(
 120     content::WebContents* web_contents,
 121     const base::string16& message_text,
 122     bool is_reload,
 123     const DialogClosedCallback& callback) {
 124   ChromeJavaScriptDialogExtraData* extra_data =
 125       &javascript_dialog_extra_data_
 126           [JavaScriptAppModalDialog::GetSerializedOriginForWebContents(
 127               web_contents)];
 128
 129   if (extra_data->suppress_javascript_messages_) {
 130     // If a site harassed the user enough for them to put it on mute, then it
 131     // lost its privilege to deny unloading.
 132     callback.Run(true, base::string16());
 133     return;
 134   }
 135
 136   const base::string16 title = l10n_util::GetStringUTF16(is_reload ?
 137       IDS_BEFORERELOAD_MESSAGEBOX_TITLE : IDS_BEFOREUNLOAD_MESSAGEBOX_TITLE);
 138   const base::string16 footer = l10n_util::GetStringUTF16(is_reload ?
 139       IDS_BEFORERELOAD_MESSAGEBOX_FOOTER : IDS_BEFOREUNLOAD_MESSAGEBOX_FOOTER);
 140
 141   base::string16 full_message =
 142       message_text + base::ASCIIToUTF16("\n\n") + footer;
 143
 144   extensions_client_->OnDialogOpened(web_contents);
 145
 146   AppModalDialogQueue::GetInstance()->AddDialog(new JavaScriptAppModalDialog(
 147       web_contents,
 148       &javascript_dialog_extra_data_,
 149       title,
 150       content::JAVASCRIPT_MESSAGE_TYPE_CONFIRM,
 151       full_message,
 152       base::string16(),  // default_prompt_text
 153       ShouldDisplaySuppressCheckbox(extra_data),
 154       true,        // is_before_unload_dialog
 155       is_reload,
 156       base::Bind(&JavaScriptDialogManager::OnDialogClosed,
 157                  base::Unretained(this), web_contents, callback)));
 158 }
 159
 160 bool JavaScriptDialogManager::HandleJavaScriptDialog(
 161     content::WebContents* web_contents,
 162     bool accept,
 163     const base::string16* prompt_override) {
 164   AppModalDialogQueue* dialog_queue = AppModalDialogQueue::GetInstance();
 165   if (!dialog_queue->HasActiveDialog() ||
 166       !dialog_queue->active_dialog()->IsJavaScriptModalDialog() ||
 167       dialog_queue->active_dialog()->web_contents() != web_contents) {
 168     return false;
 169   }
 170   JavaScriptAppModalDialog* dialog = static_cast<JavaScriptAppModalDialog*>(
 171       dialog_queue->active_dialog());
 172   if (accept) {
 173     if (prompt_override)
 174       dialog->SetOverridePromptText(*prompt_override);
 175     dialog->native_dialog()->AcceptAppModalDialog();
 176   } else {
 177     dialog->native_dialog()->CancelAppModalDialog();
 178   }
 179   return true;
 180 }
 181
 182 void JavaScriptDialogManager::ResetDialogState(
 183     content::WebContents* web_contents) {
 184   CancelActiveAndPendingDialogs(web_contents);
 185   javascript_dialog_extra_data_.erase(
 186       JavaScriptAppModalDialog::GetSerializedOriginForWebContents(
 187           web_contents));
 188 }
 189
 190 base::string16 JavaScriptDialogManager::GetTitle(
 191     content::WebContents* web_contents,
 192     const GURL& origin_url,
 193     const std::string& accept_lang,
 194     bool is_alert) {
 195   // If the URL hasn't any host, return the default string.
 196   if (!origin_url.has_host()) {
 197       return l10n_util::GetStringUTF16(
 198           is_alert ? IDS_JAVASCRIPT_ALERT_DEFAULT_TITLE
 199                    : IDS_JAVASCRIPT_MESSAGEBOX_DEFAULT_TITLE);
 200   }
 201
 202   // For extensions, show the extension name, but only if the origin of
 203   // the alert matches the top-level WebContents.
 204   std::string name;
 205   if (extensions_client_->GetExtensionName(web_contents, origin_url, &name))
 206     return base::UTF8ToUTF16(name);
 207
 208   // Otherwise, return the formatted URL.
 209   // In this case, force URL to have LTR directionality.
 210   base::string16 url_string = url_formatter::FormatUrl(origin_url, accept_lang);
 211   return l10n_util::GetStringFUTF16(
 212       is_alert ? IDS_JAVASCRIPT_ALERT_TITLE
 213       : IDS_JAVASCRIPT_MESSAGEBOX_TITLE,
 214       base::i18n::GetDisplayStringInLTRDirectionality(url_string));
 215 }
 216
 217 void JavaScriptDialogManager::CancelActiveAndPendingDialogs(
 218     content::WebContents* web_contents) {
 219   AppModalDialogQueue* queue = AppModalDialogQueue::GetInstance();
 220   AppModalDialog* active_dialog = queue->active_dialog();
 221   for (AppModalDialogQueue::iterator i = queue->begin();
 222        i != queue->end(); ++i) {
 223     // Invalidating the active dialog might trigger showing a not-yet
 224     // invalidated dialog, so invalidate the active dialog last.
 225     if ((*i) == active_dialog)
 226       continue;
 227     if ((*i)->web_contents() == web_contents)
 228       (*i)->Invalidate();
 229   }
 230   if (active_dialog && active_dialog->web_contents() == web_contents)
 231     active_dialog->Invalidate();
 232 }
 233
 234 void JavaScriptDialogManager::OnDialogClosed(
 235     content::WebContents* web_contents,
 236     DialogClosedCallback callback,
 237     bool success,
 238     const base::string16& user_input) {
 239   // If an extension opened this dialog then the extension may shut down its
 240   // lazy background page after the dialog closes. (Dialogs are closed before
 241   // their WebContents is destroyed so |web_contents| is still valid here.)
 242   extensions_client_->OnDialogClosed(web_contents);
 243
 244   callback.Run(success, user_input);
 245 }
 246
 247 }  // namespace app_modal