admin/view/javascript/d_bootstrap_rating/bootstrap-rating.js

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(function ($, undefined) {
  'use strict';

  var OFFSET = 5;

  function Rating(element, options) {
    this.$input = $(element);
    this.$rating = $('<span></span>').css({
      cursor: 'default'
    }).insertBefore(this.$input);
    // Merge data and parameter options.
    // Those provided as parameter prevail over the data ones.
    this.options = (function (opts) {
      // Sanitize start, stop, step, and fractions.
      // All of them start, stop, and step must be integers.
      opts.start = parseInt(opts.start, 10);
      opts.start = isNaN(opts.start) ? undefined : opts.start;
      // In case we don't have a valid stop rate try to get a reasonable
      // one based on the existence of a valid start rate.
      opts.stop = parseInt(opts.stop, 10);
      opts.stop = isNaN(opts.stop) ?
        opts.start + OFFSET || undefined : opts.stop;
      // 0 step is ignored.
      opts.step = parseInt(opts.step, 10) || undefined;
      // Symbol fractions and scale (number of significant digits).
      // 0 is ignored and negative numbers are turned to positive.
      opts.fractions = Math.abs(parseInt(opts.fractions, 10)) || undefined;
      opts.scale = Math.abs(parseInt(opts.scale, 10)) || undefined;

      // Extend/Override the default options with those provided either as
      // data attributes or function parameters.
      opts = $.extend({}, $.fn.rating.defaults, opts);
      // Inherit default filled if none is defined for the selected symbol.
      opts.filledSelected = opts.filledSelected || opts.filled;
      return opts;
    }($.extend({}, this.$input.data(), options)));

    this._init();
  };

  Rating.prototype = {
    _init: function () {
      var rating = this,
          $input = this.$input,
          $rating = this.$rating;

      var ifEnabled = function (f) {
        return function (e) {
          // According to the W3C attribute readonly is not allowed on input
          // elements with type hidden.
          // Keep readonly prop for legacy but its use should be deprecated.
          if (!$input.prop('disabled') && !$input.prop('readonly') &&
              $input.data('readonly') === undefined) {
            f.call(this, e);
          }
        }
      };

      // Build the rating control.
      for (var i = 1; i <= this._rateToIndex(this.options.stop); i++) {