<?php

/*
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed 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.
 */

final class DifferentialHostFieldSpecification
  extends DifferentialFieldSpecification {

  public function shouldAppearOnRevisionView() {
    return true;
  }

  public function renderLabelForRevisionView() {
    return 'Host:';
  }

  public function renderValueForRevisionView() {
    $diff = $this->getDiff();
    $host = $diff->getSourceMachine();
    if (!$host) {
      return null;
    }
    return phutil_escape_html($host);
  }

}