chosen.js

// Generated by CoffeeScript 1.8.0
(function() {
  var __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };

  angular.module('localytics.directives', []);

  angular.module('localytics.directives').directive('chosen', function() {
    var CHOSEN_OPTION_WHITELIST, NG_OPTIONS_REGEXP, isEmpty, snakeCase;
    NG_OPTIONS_REGEXP = /^\s*(.*?)(?:\s+as\s+(.*?))?(?:\s+group\s+by\s+(.*))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+(.*?)(?:\s+track\s+by\s+(.*?))?$/;
    CHOSEN_OPTION_WHITELIST = ['noResultsText', 'allowSingleDeselect', 'disableSearchThreshold', 'disableSearch', 'enableSplitWordSearch', 'inheritSelectClasses', 'maxSelectedOptions', 'placeholderTextMultiple', 'placeholderTextSingle', 'searchContains', 'singleBackstrokeDelete', 'displayDisabledOptions', 'displaySelectedOptions', 'width'];
    snakeCase = function(input) {
      return input.replace(/[A-Z]/g, function($1) {
        return "_" + ($1.toLowerCase());
      });
    };
    isEmpty = function(value) {
      var key;
      if (angular.isArray(value)) {
        return value.length === 0;
      } else if (angular.isObject(value)) {
        for (key in value) {
          if (value.hasOwnProperty(key)) {
            return false;
          }
        }
      }
      return true;
    };
    return {
      restrict: 'A',
      require: '?ngModel',
      terminal: true,
      link: function(scope, element, attr, ngModel) {
        var chosen, defaultText, disableWithMessage, empty, init, match, options, origRender, removeEmptyMessage, startLoading, stopLoading, update, valuesExpr, viewWatch;
        element.addClass('localytics-chosen');
        options = scope.$eval(attr.chosen) || {};
        angular.forEach(attr, function(value, key) {
          if (__indexOf.call(CHOSEN_OPTION_WHITELIST, key) >= 0) {
            return options[snakeCase(key)] = scope.$eval(value);
          }
        });
        startLoading = function() {
          return element.addClass('loading').attr('disabled', true).trigger('chosen:updated');
        };
        stopLoading = function() {
          return element.removeClass('loading').attr('disabled', false).trigger('chosen:updated');
        };
        chosen = null;
        defaultText = null;
        empty = false;
        init = function() {
          return chosen = element.chosen(options).data('chosen');
        };
        update = function() {
          return element.trigger('chosen:updated');
        };
        removeEmptyMessage = function() {
          empty = false;
          return element.attr('data-placeholder', defaultText);
        };
        disableWithMessage = function() {
          empty = true;
          return element.attr('data-placeholder', chosen.results_none_found).attr('disabled', true).trigger('chosen:updated');
        };
        init();
        if (chosen) {
          if (ngModel) {
            origRender = ngModel.$render;
            ngModel.$render = function() {
              origRender();
              return update();
            };
            if (attr.multiple) {
              viewWatch = function() {
                return ngModel.$viewValue;
              };
              scope.$watch(viewWatch, ngModel.$render, true);
            }
          } else {
            update();
          }
          attr.$observe('disabled', function() {
            return element.trigger('chosen:updated');
          });
          if (attr.ngOptions && ngModel) {
            match = attr.ngOptions.match(NG_OPTIONS_REGEXP);
            valuesExpr = match[7];
            return scope.$watchCollection(valuesExpr, function(newVal, oldVal) {
              if (angular.isUndefined(newVal)) {
                return startLoading();
              } else {
                if (empty) {
                  removeEmptyMessage();
                }
                stopLoading();
                if (isEmpty(newVal)) {
                  return disableWithMessage();
                }
              }
            });
          }
        }
      }
    };
  });

}).call(this);