ChromeOS login webui refactoring: split user selection/gaia login screens.

chrome/browser/chromeos/login/screens/user_selection_screen.cc

+// Copyright (c) 2012 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/chromeos/login/screens/user_selection_screen.h"
+
+#include "base/logging.h"
+#include "chrome/browser/chromeos/login/screens/screen_observer.h"
+#include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
+
+namespace chromeos {
+
+UserSelectionScreen::UserSelectionScreen() : handler_(NULL) {
+}
+
+UserSelectionScreen::~UserSelectionScreen() {
+}
+
+void UserSelectionScreen::SetHandler(LoginDisplayWebUIHandler* handler) {
+  handler_ = handler;
+}
+
+void UserSelectionScreen::Init(const UserList& users) {
+  users_ = users;
+}
+
+void UserSelectionScreen::OnBeforeUserRemoved(const std::string& username) {
+  for (UserList::iterator it = users_.begin(); it != users_.end(); ++it) {
+    if ((*it)->email() == username) {
+      users_.erase(it);
+      break;
+    }
+  }
+}
+
+void UserSelectionScreen::OnUserRemoved(const std::string& username) {
+  if (!handler_)
+    return;
+
+  handler_->OnUserRemoved(username);
+  // ToDo(antrim):

[Nikita (slow), 2014/05/20 12:14:29]

nit: Remove this commented code.

+  /*
+    removeUserPod(username);
+    if (getUsers.isEmpty())
+      manager->GaiaToAddUser(std::string()l)
+  */
+}
+
+void UserSelectionScreen::OnUserImageChanged(const User& user) {
+  if (!handler_)
+    return;
+  handler_->OnUserImageChanged(user);
+  // TODO(antrim) : updateUserImage(user.email())
+}
+
+void UserSelectionScreen::ShowUserPodButton(
+    const std::string& username,
+    const std::string& iconURL,
+    const base::Closure& click_callback) {
+  if (!handler_)
+    return;
+  handler_->ShowUserPodButton(username, iconURL, click_callback);
+}
+
+void UserSelectionScreen::HideUserPodButton(const std::string& username) {
+  if (!handler_)
+    return;
+  handler_->HideUserPodButton(username);
+}
+
+const UserList& UserSelectionScreen::GetUsers() const {
+  return users_;
+}
+
+}  // namespace chromeos