drupal/core/modules/views/js/base.js

/**
 * @file
 * Some basic behaviors and utility functions for Views.
 */
(function ($) {

  "use strict";

  Drupal.Views = {};

  /**
   * Helper function to parse a querystring.
   */
  Drupal.Views.parseQueryString = function (query) {
    var args = {};
    var pos = query.indexOf('?');
    if (pos !== -1) {
      query = query.substring(pos + 1);
    }
    var pairs = query.split('&');
    for(var i in pairs) {
      if (typeof(pairs[i]) === 'string') {
        var pair = pairs[i].split('=');
        // Ignore the 'q' path argument, if present.
        if (pair[0] !== 'q' && pair[1]) {
          args[decodeURIComponent(pair[0].replace(/\+/g, ' '))] = decodeURIComponent(pair[1].replace(/\+/g, ' '));
        }
      }
    }
    return args;
  };

  /**
   * Helper function to return a view's arguments based on a path.
   */
  Drupal.Views.parseViewArgs = function (href, viewPath) {
    var returnObj = {};
    var path = Drupal.Views.getPath(href);
    // Ensure we have a correct path.
    if (viewPath && path.substring(0, viewPath.length + 1) === viewPath + '/') {
      var args = decodeURIComponent(path.substring(viewPath.length + 1, path.length));
      returnObj.view_args = args;
      returnObj.view_path = path;
    }
    return returnObj;
  };

  /**
   * Strip off the protocol plus domain from an href.
   */
  Drupal.Views.pathPortion = function (href) {
    // Remove e.g. http://example.com if present.
    var protocol = window.location.protocol;
    if (href.substring(0, protocol.length) === protocol) {
      // 2 is the length of the '//' that normally follows the protocol
      href = href.substring(href.indexOf('/', protocol.length + 2));
    }
    return href;
  };

  /**
   * Return the Drupal path portion of an href.
   */
  Drupal.Views.getPath = function (href) {
    href = Drupal.Views.pathPortion(href);
    href = href.substring(Drupal.settings.basePath.length, href.length);
    // 3 is the length of the '?q=' added to the url without clean urls.
    if (href.substring(0, 3) === '?q=') {
      href = href.substring(3, href.length);
    }
    var chars = ['#', '?', '&'];
    for (var i in chars) {
      if (href.indexOf(chars[i]) > -1) {
        href = href.substr(0, href.indexOf(chars[i]));
      }
    }
    return href;
  };

})(jQuery);