First try at a user management screen for the desktop

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

+// Copyright (c) 2013 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/user_chooser_ui.h"
+
+#include "base/values.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/webui/signin/user_chooser_screen_handler.h"
+#include "chrome/browser/ui/webui/theme_source.h"
+#include "chrome/common/url_constants.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/resource/resource_bundle.h"
+#include "ui/webui/web_ui_util.h"
+
+namespace {
+  // JS file names.
+  const char kStringsJSPath[] = "strings.js";
+  const char kUserChooserJSPath[] = "user_chooser.js";
+  const char kHeaderBarJSPath[] = "header_bar.js";
+  const char kAccountPickerJSPath[] = "screen_account_picker.js";
+}
+
+UserChooserUI::UserChooserUI(content::WebUI* web_ui)
+  : WebUIController(web_ui) {
+  // The web_ui object takes ownership of the handler, and will
+  // destroy it when it (the WebUI) is destroyed.
+  user_chooser_screen_handler_ = new UserChooserScreenHandler();
+  web_ui->AddMessageHandler(user_chooser_screen_handler_);
+
+  base::DictionaryValue localized_strings;
+  GetLocalizedStrings(&localized_strings);
+
+  Profile* profile = Profile::FromWebUI(web_ui);
+  // Set up the chrome://user-chooser/ source.
+  content::WebUIDataSource::Add(profile, CreateUIDataSource(localized_strings));
+
+#if defined(ENABLE_THEMES)
+  // Set up the chrome://theme/ source
+  ThemeSource* theme = new ThemeSource(profile);
+  content::URLDataSource::Add(profile, theme);
+#endif
+}
+
+UserChooserUI::~UserChooserUI() {
+}
+
+content::WebUIDataSource* UserChooserUI::CreateUIDataSource(
+    const base::DictionaryValue& localized_strings) {
+  content::WebUIDataSource* source =
+      content::WebUIDataSource::Create(chrome::kChromeUIUserChooserHost);
+  source->SetUseJsonJSFormatV2();
+  source->AddLocalizedStrings(localized_strings);
+  source->SetJsonPath(kStringsJSPath);
+
+  source->SetDefaultResource(IDR_USER_CHOOSER_HTML);
+  source->AddResourcePath(kUserChooserJSPath, IDR_USER_CHOOSER_JS);
+
+  return source;
+}
+
+void UserChooserUI::GetLocalizedStrings(
+    base::DictionaryValue* localized_strings) {
+  user_chooser_screen_handler_->GetLocalizedValues(localized_strings);
+  webui::SetFontAndTextDirection(localized_strings);
+
+#if defined(GOOGLE_CHROME_BUILD)
+  localized_strings->SetString("buildType", "chrome");
+#else
+  localized_strings->SetString("buildType", "chromium");
+#endif
+}
+