source: trunk/sources/HeuristicLab.Services.WebApp/3.3/WebApp/libs/angularjs/fittext/ng-FitText.js @ 13329

/* ng-FitText.js v3.3.3
 * https://github.com/patrickmarabeas/ng-FitText.js
 *
 * Original jQuery project: https://github.com/davatron5000/FitText.js
 *
 * Copyright 2015, Patrick Marabeas http://marabeas.io
 * Released under the MIT license
 * http://opensource.org/licenses/mit-license.php
 *
 * Date: 06/05/2015
 */

(function (window, document, angular, undefined) {

    'use strict';

    angular.module('ngFitText', [])
      .value('config', {
          'debounce': false,
          'delay': 250,
          'loadDelay': 10,
          'min': undefined,
          'max': undefined
      })

      .directive('fittext', ['$timeout', 'config', 'fitTextConfig', function ($timeout, config, fitTextConfig) {
          return {
              restrict: 'A',
              scope: true,
              link: function (scope, element, attrs) {
                  angular.extend(config, fitTextConfig.config);

                  element[0].style.display = 'inline-block';
                  element[0].style.lineHeight = '1';

                  var parent = element.parent();
                  var compressor = attrs.fittext || 1;
                  var loadDelay = attrs.fittextLoadDelay || config.loadDelay;
                  var nl = element[0].querySelectorAll('[fittext-nl],[data-fittext-nl]').length || 1;
                  var minFontSize = attrs.fittextMin || config.min || Number.NEGATIVE_INFINITY;
                  var maxFontSize = attrs.fittextMax || config.max || Number.POSITIVE_INFINITY;

                  var resizer = function () {
                      element[0].style.fontSize = '10px';
                      var ratio = element[0].offsetHeight / element[0].offsetWidth / nl;
                      element[0].style.fontSize = Math.max(
                        Math.min((parent[0].offsetWidth - 6) * ratio * compressor,
                          parseFloat(maxFontSize)
                        ),
                        parseFloat(minFontSize)
                      ) + 'px';
                  };

                  $timeout(function () { resizer() }, loadDelay);

                  scope.$watch(attrs.ngModel, function () { resizer() });

                  config.debounce
                    ? angular.element(window).bind('resize', config.debounce(function () { scope.$apply(resizer) }, config.delay))
                    : angular.element(window).bind('resize', function () { scope.$apply(resizer) });
              }
          }
      }])

      .provider('fitTextConfig', function () {
          var self = this;
          this.config = {};
          this.$get = function () {
              var extend = {};
              extend.config = self.config;
              return extend;
          };
          return this;
      });

})(window, document, angular);