Consolidate javascript_dialog_manager.h and javascript_dialog_manager_impl.h

components/app_modal/javascript_dialog_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/app_modal/javascript_dialog_manager.h"
 
+#include "base/bind.h"
+#include "base/i18n/rtl.h"
+#include "base/strings/utf_string_conversions.h"
+#include "components/app_modal/app_modal_dialog.h"
+#include "components/app_modal/app_modal_dialog_queue.h"
 #include "components/app_modal/javascript_dialog_extensions_client.h"
-#include "components/app_modal/javascript_dialog_manager_impl.h"
 #include "components/app_modal/javascript_native_dialog_factory.h"
-
-content::JavaScriptDialogManager* GetJavaScriptDialogManagerInstance() {
-  return JavaScriptDialogManagerImpl::GetInstance();
-}
-
-void SetJavaScriptNativeDialogFactory(
-    scoped_ptr<JavaScriptNativeDialogFactory> new_factory) {
-  JavaScriptDialogManagerImpl::GetInstance()->SetNativeDialogFactory(
-      new_factory.Pass());
-}
-
-void SetJavaScriptDialogExtensionsClient(
-    scoped_ptr<JavaScriptDialogExtensionsClient> new_client) {
-  JavaScriptDialogManagerImpl::GetInstance()->SetExtensionsClient(
-      new_client.Pass());
-}
+#include "components/app_modal/native_app_modal_dialog.h"
+#include "content/public/common/javascript_message_type.h"
+#include "grit/components_strings.h"
+#include "net/base/net_util.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace app_modal {
+namespace {
+
+class DefaultExtensionsClient : public JavaScriptDialogExtensionsClient {
+ public:
+  DefaultExtensionsClient() {}
+  ~DefaultExtensionsClient() override {}
+
+ private:
+  // JavaScriptDialogExtensionsClient:
+  void OnDialogOpened(content::WebContents* web_contents) override {}
+  void OnDialogClosed(content::WebContents* web_contents) override {}
+  bool GetExtensionName(content::WebContents* web_contents,
+                        const GURL& origin_url,
+                        std::string* name_out) override {
+    return false;
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(DefaultExtensionsClient);
+};
+
+}  // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+// JavaScriptDialogManager, public:
+
+// static
+JavaScriptDialogManager* JavaScriptDialogManager::GetInstance() {
+  return Singleton<JavaScriptDialogManager>::get();
+}
+
+void JavaScriptDialogManager::SetNativeDialogFactory(
+    scoped_ptr<JavaScriptNativeDialogFactory> factory) {
+  native_dialog_factory_ = factory.Pass();
+}
+
+void JavaScriptDialogManager::SetExtensionsClient(
+    scoped_ptr<JavaScriptDialogExtensionsClient> extensions_client) {
+  extensions_client_ = extensions_client.Pass();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// JavaScriptDialogManager, private:
+
+JavaScriptDialogManager::JavaScriptDialogManager()
+    : extensions_client_(new DefaultExtensionsClient) {
+}
+
+JavaScriptDialogManager::~JavaScriptDialogManager() {
+}
+
+void JavaScriptDialogManager::RunJavaScriptDialog(
+    content::WebContents* web_contents,
+    const GURL& origin_url,
+    const std::string& accept_lang,
+    content::JavaScriptMessageType message_type,
+    const base::string16& message_text,
+    const base::string16& default_prompt_text,
+    const DialogClosedCallback& callback,
+    bool* did_suppress_message)  {
+  *did_suppress_message = false;
+
+  ChromeJavaScriptDialogExtraData* extra_data =
+      &javascript_dialog_extra_data_[web_contents];
+
+  if (extra_data->suppress_javascript_messages_) {
+    *did_suppress_message = true;
+    return;
+  }
+
+  base::TimeDelta time_since_last_message = base::TimeTicks::Now() -
+      extra_data->last_javascript_message_dismissal_;
+  bool display_suppress_checkbox = false;
+  // If a WebContents is impolite and displays a second JavaScript
+  // alert within kJavaScriptMessageExpectedDelay of a previous
+  // JavaScript alert being dismissed, show a checkbox offering to
+  // suppress future alerts from this WebContents.
+  const int kJavaScriptMessageExpectedDelay = 1000;
+
+  if (time_since_last_message <
+      base::TimeDelta::FromMilliseconds(kJavaScriptMessageExpectedDelay)) {
+    display_suppress_checkbox = true;
+  } else {
+    display_suppress_checkbox = false;
+  }
+
+  bool is_alert = message_type == content::JAVASCRIPT_MESSAGE_TYPE_ALERT;
+  base::string16 dialog_title =
+      GetTitle(web_contents, origin_url, accept_lang, is_alert);
+
+  extensions_client_->OnDialogOpened(web_contents);
+
+  AppModalDialogQueue::GetInstance()->AddDialog(new JavaScriptAppModalDialog(
+      web_contents,
+      &javascript_dialog_extra_data_,
+      dialog_title,
+      message_type,
+      message_text,
+      default_prompt_text,
+      display_suppress_checkbox,
+      false,  // is_before_unload_dialog
+      false,  // is_reload
+      base::Bind(&JavaScriptDialogManager::OnDialogClosed,
+                 base::Unretained(this), web_contents, callback)));
+}
+
+void JavaScriptDialogManager::RunBeforeUnloadDialog(
+    content::WebContents* web_contents,
+    const base::string16& message_text,
+    bool is_reload,
+    const DialogClosedCallback& callback) {
+  const base::string16 title = l10n_util::GetStringUTF16(is_reload ?
+      IDS_BEFORERELOAD_MESSAGEBOX_TITLE : IDS_BEFOREUNLOAD_MESSAGEBOX_TITLE);
+  const base::string16 footer = l10n_util::GetStringUTF16(is_reload ?
+      IDS_BEFORERELOAD_MESSAGEBOX_FOOTER : IDS_BEFOREUNLOAD_MESSAGEBOX_FOOTER);
+
+  base::string16 full_message =
+      message_text + base::ASCIIToUTF16("\n\n") + footer;
+
+  extensions_client_->OnDialogOpened(web_contents);
+
+  AppModalDialogQueue::GetInstance()->AddDialog(new JavaScriptAppModalDialog(
+      web_contents,
+      &javascript_dialog_extra_data_,
+      title,
+      content::JAVASCRIPT_MESSAGE_TYPE_CONFIRM,
+      full_message,
+      base::string16(),  // default_prompt_text
+      false,       // display_suppress_checkbox
+      true,        // is_before_unload_dialog
+      is_reload,
+      base::Bind(&JavaScriptDialogManager::OnDialogClosed,
+                 base::Unretained(this), web_contents, callback)));
+}
+
+bool JavaScriptDialogManager::HandleJavaScriptDialog(
+    content::WebContents* web_contents,
+    bool accept,
+    const base::string16* prompt_override) {
+  AppModalDialogQueue* dialog_queue = AppModalDialogQueue::GetInstance();
+  if (!dialog_queue->HasActiveDialog() ||
+      !dialog_queue->active_dialog()->IsJavaScriptModalDialog() ||
+      dialog_queue->active_dialog()->web_contents() != web_contents) {
+    return false;
+  }
+  JavaScriptAppModalDialog* dialog = static_cast<JavaScriptAppModalDialog*>(
+      dialog_queue->active_dialog());
+  if (accept) {
+    if (prompt_override)
+      dialog->SetOverridePromptText(*prompt_override);
+    dialog->native_dialog()->AcceptAppModalDialog();
+  } else {
+    dialog->native_dialog()->CancelAppModalDialog();
+  }
+  return true;
+}
+
+void JavaScriptDialogManager::WebContentsDestroyed(
+    content::WebContents* web_contents) {
+  CancelActiveAndPendingDialogs(web_contents);
+  javascript_dialog_extra_data_.erase(web_contents);
+}
+
+base::string16 JavaScriptDialogManager::GetTitle(
+    content::WebContents* web_contents,
+    const GURL& origin_url,
+    const std::string& accept_lang,
+    bool is_alert) {
+  // If the URL hasn't any host, return the default string.
+  if (!origin_url.has_host()) {
+      return l10n_util::GetStringUTF16(
+          is_alert ? IDS_JAVASCRIPT_ALERT_DEFAULT_TITLE
+                   : IDS_JAVASCRIPT_MESSAGEBOX_DEFAULT_TITLE);
+  }
+
+  // For extensions, show the extension name, but only if the origin of
+  // the alert matches the top-level WebContents.
+  std::string name;
+  if (extensions_client_->GetExtensionName(web_contents, origin_url, &name))
+    return base::UTF8ToUTF16(name);
+
+  // Otherwise, return the formatted URL.
+  // In this case, force URL to have LTR directionality.
+  base::string16 url_string = net::FormatUrl(origin_url, accept_lang);
+  return l10n_util::GetStringFUTF16(
+      is_alert ? IDS_JAVASCRIPT_ALERT_TITLE
+      : IDS_JAVASCRIPT_MESSAGEBOX_TITLE,
+      base::i18n::GetDisplayStringInLTRDirectionality(url_string));
+}
+
+void JavaScriptDialogManager::CancelActiveAndPendingDialogs(
+    content::WebContents* web_contents) {
+  AppModalDialogQueue* queue = AppModalDialogQueue::GetInstance();
+  AppModalDialog* active_dialog = queue->active_dialog();
+  if (active_dialog && active_dialog->web_contents() == web_contents)
+    active_dialog->Invalidate();
+  for (AppModalDialogQueue::iterator i = queue->begin();
+       i != queue->end(); ++i) {
+    if ((*i)->web_contents() == web_contents)
+      (*i)->Invalidate();
+  }
+}
+
+void JavaScriptDialogManager::OnDialogClosed(
+    content::WebContents* web_contents,
+    DialogClosedCallback callback,
+    bool success,
+    const base::string16& user_input) {
+  // If an extension opened this dialog then the extension may shut down its
+  // lazy background page after the dialog closes. (Dialogs are closed before
+  // their WebContents is destroyed so |web_contents| is still valid here.)
+  extensions_client_->OnDialogClosed(web_contents);
+
+  callback.Run(success, user_input);
+}
+
+}  // namespace app_modal