jquery.responsiveText.js

// Generated by CoffeeScript 1.6.3
/*
 *
 *  jQuery ResponsiveText by Gary Hepting - https://github.com/ghepting/jquery-responsive-text
 *  
 *  Open source under the MIT License. 
 *
 *  Copyright © 2013 Gary Hepting. All rights reserved.
 *
*/


(function() {
  var ResponsiveText, delayedAdjust, responsiveTextIndex;

  delayedAdjust = [];

  responsiveTextIndex = 0;

  ResponsiveText = (function() {
    function ResponsiveText(el) {
      this.index = responsiveTextIndex++;
      this.el = el;
      this.compression = $(this.el).data('compression') || 10;
      this.minFontSize = $(this.el).data('min') || Number.NEGATIVE_INFINITY;
      this.maxFontSize = $(this.el).data('max') || Number.POSITIVE_INFINITY;
      this.scrollable = $(this.el).data('scrollable') || false;
      this.scrollSpeed = $(this.el).data('scrollspeed') || 650;
      this.scrollReset = $(this.el).data('scrollreset') || 200;
      this.init();
    }

    ResponsiveText.prototype.init = function() {
      $(this.el).wrapInner('<span class="responsiveText-wrapper" />');
      this.adjustOnLoad();
      this.adjustOnResize();
      if (this.scrollable) {
        return this.scrollOnHover();
      }
    };

    ResponsiveText.prototype.resizeText = function() {
      return $(this.el).css("font-size", Math.floor(Math.max(Math.min($(this.el).width() / this.compression, this.maxFontSize), this.minFontSize)));
    };

    ResponsiveText.prototype.adjustOnLoad = function() {
      var _this = this;
      return $(window).on('load', function() {
        return _this.resizeText();
      });
    };

    ResponsiveText.prototype.adjustOnResize = function() {
      var _this = this;
      return $(window).on('resize', function() {
        clearTimeout(delayedAdjust[_this.index]);
        return delayedAdjust[_this.index] = setTimeout(function() {
          return _this.resizeText();
        }, 20);
      });
    };

    ResponsiveText.prototype.scrollOnHover = function() {
      var _this = this;
      $(this.el).css({
        'overflow': 'hidden',
        'text-overflow': 'ellipsis',
        'white-space': 'nowrap'
      });
      return $(this.el).hover(function() {
        _this.difference = _this.el.scrollWidth - $(_this.el).width();
        if (_this.difference > _this.scrollSpeed) {
          _this.scrollSpeed = _this.difference;
        }
        if (_this.difference > 0) {
          $(_this.el).css('cursor', 'e-resize');
          return $(_this.el).stop().animate({
            "text-indent": -_this.difference
          }, _this.scrollSpeed, function() {
            return $(_this.el).css('cursor', 'text');
          });
        }
      }, function() {
        return $(_this.el).stop().animate({
          "text-indent": 0
        }, _this.scrollReset);
      });
    };

    return ResponsiveText;

  })();

  (function($) {
    var responsiveTextElements;
    responsiveTextElements = [];
    return $.fn.responsiveText = function(options) {
      return this.each(function() {
        return responsiveTextElements.push(new ResponsiveText(this));
      });
    };
  })(jQuery);

}).call(this);