@cquiroz/aladin-lite/lib/js/Sesame.js

AladinLite module

// Copyright 2013 - UDS/CNRS
// The Aladin Lite program is distributed under the terms
// of the GNU General Public License version 3.
//
// This file is part of Aladin Lite.
//
//    Aladin Lite is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, version 3 of the License.
//
//    Aladin Lite is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    The GNU General Public License is available in COPYING file
//    along with Aladin Lite.
//

/******************************************************************************
 * Aladin Lite project
 *
 * File Sesame.js
 *
 * Author: Thomas Boch[CDS]
 *
 *****************************************************************************/
import Utils from './Utils';
import Coo from './coo';
import $ from 'jquery';

var Sesame = function () {
  var Sesame = {};
  Sesame.cache = {};
  Sesame.SESAME_URL = "http://cds.u-strasbg.fr/cgi-bin/nph-sesame.jsonp";
  /** find RA, DEC for any target (object name or position)
   *  if successful, callback is called with an object {ra: <ra-value>, dec: <dec-value>}
   *  if not successful, errorCallback is called
   */

  Sesame.getTargetRADec = function (target, callback, errorCallback) {
    if (!callback) {
      return;
    }

    var isObjectName = /[a-zA-Z]/.test(target); // try to parse as a position

    if (!isObjectName) {
      var coo = new Coo();
      coo.parse(target);

      if (callback) {
        callback({
          ra: coo.lon,
          dec: coo.lat
        });
      }
    } // ask resolution by Sesame
    else {
      Sesame.resolve(target, function (data) {
        // success callback
        callback({
          ra: data.Target.Resolver.jradeg,
          dec: data.Target.Resolver.jdedeg
        });
      }, function () {
        // error callback
        if (errorCallback) {
          errorCallback();
        }
      });
    }
  };

  Sesame.resolve = function (objectName, callbackFunctionSuccess, callbackFunctionError) {
    var sesameUrl = Sesame.SESAME_URL;

    if (Utils.isHttpsContext()) {
      sesameUrl = sesameUrl.replace('http://', 'https://');
    }

    $.ajax({
      url: sesameUrl,
      data: {
        "object": objectName
      },
      method: 'GET',
      dataType: 'jsonp',
      success: function success(data) {
        if (data.Target && data.Target.Resolver) {
          callbackFunctionSuccess(data);
        } else {
          callbackFunctionError(data);
        }
      },
      error: callbackFunctionError
    });
  };

  return Sesame;
}();

export default Sesame;