[Signin Error Dialog] (2/3) Added handlers and UI constructors

chrome/browser/ui/webui/signin/signin_error_ui.cc

+// Copyright 2016 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 "chrome/browser/ui/webui/signin/signin_error_ui.h"
+
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profiles/profile_attributes_entry.h"
+#include "chrome/browser/profiles/profile_attributes_storage.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/webui/signin/login_ui_service.h"
+#include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
+#include "chrome/browser/ui/webui/signin/signin_error_handler.h"
+#include "chrome/common/url_constants.h"
+#include "chrome/grit/generated_resources.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_data_source.h"
+#include "grit/browser_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/webui/web_ui_util.h"
+#include "ui/gfx/text_elider.h"
+
+SigninErrorUI::SigninErrorUI(content::WebUI* web_ui)
+    : SigninErrorUI(web_ui, new SigninErrorHandler) {}
+
+SigninErrorUI::SigninErrorUI(content::WebUI* web_ui,
+                             SigninErrorHandler* handler)
+    : WebDialogUI(web_ui) {
+  Profile* profile = Profile::FromWebUI(web_ui);
+  content::WebUIDataSource* source =
+      content::WebUIDataSource::Create(chrome::kChromeUISigninErrorHost);
+  source->SetJsonPath("strings.js");
+  source->SetDefaultResource(IDR_SIGNIN_ERROR_HTML);
+  source->AddResourcePath("signin_error.js", IDR_SIGNIN_ERROR_JS);
+
+  // Retrieve the last signin error message and email used.
+  LoginUIService* login_ui_service =
+      LoginUIServiceFactory::GetForProfile(profile);
+  base::string16 last_login_result(login_ui_service->GetLastLoginResult());
+  base::string16 email = login_ui_service->GetLastLoginErrorEmail();
+  if (email.empty()) {
+    source->AddLocalizedString("signinErrorTitle", IDS_SIGNIN_ERROR_TITLE);
+  } else {
+    source->AddString(
+        "signinErrorTitle",
+        l10n_util::GetStringFUTF16(IDS_SIGNIN_ERROR_EMAIL_TITLE, email));
+  }
+
+  // Tweak the dialog UI depending on whether the signin error is
+  // username-in-use error.
+  base::string16 existing_name;
+  if (last_login_result.compare(
+          l10n_util::GetStringUTF16(IDS_SYNC_USER_NAME_IN_USE_ERROR)) == 0) {
+    ProfileManager* profile_manager = g_browser_process->profile_manager();
+    if (profile_manager) {
+      std::vector<ProfileAttributesEntry*> entries =
+          profile_manager->GetProfileAttributesStorage()
+              .GetAllProfilesAttributes();
+      DCHECK(!email.empty());
+      for (const ProfileAttributesEntry* entry : entries) {
+        if (gaia::AreEmailsSame(base::UTF16ToUTF8(email),
+                                base::UTF16ToUTF8(entry->GetUserName()))) {
+          handler->set_duplicate_profile_entry(entry);
+          existing_name = entry->GetName();
+        }
+      }
+    }
+    DCHECK(!existing_name.empty());
+    source->AddString(
+        "signinErrorMessage",
+        l10n_util::GetStringFUTF16(
+            IDS_SIGNIN_ERROR_LEARN_MORE_LINK,
+            l10n_util::GetStringFUTF16(IDS_SYNC_USER_NAME_IN_USE_BY_ERROR,
+                                       existing_name)));
+    // Elide the existing name for the switch uer button label.
+    existing_name =
+        gfx::TruncateString(existing_name, 10, gfx::CHARACTER_BREAK);
+  } else {
+    source->AddString("signinErrorMessage",
+                      l10n_util::GetStringFUTF16(
+                          IDS_SIGNIN_ERROR_LEARN_MORE_LINK, last_login_result));
+  }
+
+  // Add button label strings.
+  source->AddString("signinErrorSwitchLabel",
+                    l10n_util::GetStringFUTF16(
+                        IDS_SIGNIN_ERROR_SWITCH_BUTTON_LABEL, existing_name));
+  source->AddLocalizedString("signinErrorOkLabel",
+                             IDS_SIGNIN_ERROR_OK_BUTTON_LABEL);
+
+  base::DictionaryValue strings;
+  webui::SetLoadTimeDataDefaults(g_browser_process->GetApplicationLocale(),
+                                 &strings);
+  source->AddLocalizedStrings(strings);
+
+  content::WebUIDataSource::Add(profile, source);
+  web_ui->AddMessageHandler(handler);
+}