text: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements. See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership. The SFC licenses this file
  // to you under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #include "GoBackCommandHandler.h"
  #include "errorcodes.h"
  #include "../Browser.h"
  #include "../IECommandExecutor.h"
  
  namespace webdriver {
  
  GoBackCommandHandler::GoBackCommandHandler(void) {
  }
  
  GoBackCommandHandler::~GoBackCommandHandler(void) {
  }
  
  void GoBackCommandHandler::ExecuteInternal(
      const IECommandExecutor& executor,
      const ParametersMap& command_parameters,
      Response* response) {
    BrowserHandle browser_wrapper;
    int status_code = executor.GetCurrentBrowser(&browser_wrapper);
    if (status_code != WD_SUCCESS) {
      response->SetErrorResponse(ERROR_NO_SUCH_WINDOW, "Unable to get browser");
      return;
    }
    status_code = browser_wrapper->NavigateBack();
    response->SetSuccessResponse(Json::Value::null);
  }
  
  } // namespace webdriver
  