/**

 * Bilder welche als Klasse open_with_prettyphoto (ohne Anker als Parent) mit prettyphoto öffnen bei klick.

 * siehe ngi-wiki (https://intranet.studcom.ch/ngiwiki/index.php/Eigene_jQuery-Module)

 *

 * This is a jQuery-Plugin (jquery necessary)

 * @copyright 2011 StudCom GmbH

 * @version 2011-06-20

 * @since 1.2

 */

 

  /**

*

*  Base64 encode / decode

*  http://www.webtoolkit.info/

*

**/

 

  var Base64 = {

   

    // private property

    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

   

    // public method for encoding

    encode : function (input) {

      var output = "";

      var chr1, chr2, chr3, enc1, enc2, enc3, enc4;

      var i = 0;

   

      input = input.trim();

      input = Base64._utf8_encode(input);

   

      while (i < input.length) {

   

        chr1 = input.charCodeAt(i++);

        chr2 = input.charCodeAt(i++);

        chr3 = input.charCodeAt(i++);

   

        enc1 = chr1 >> 2;

        enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);

        enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);

        enc4 = chr3 & 63;

   

        if (isNaN(chr2)) {

          enc3 = enc4 = 64;

        } else if (isNaN(chr3)) {

          enc4 = 64;

        }

   

        output = output +

        this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +

        this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

   

      }

   

      return output;

    },

   

    // public method for decoding

    decode : function (input) {

      var output = "";

      var chr1, chr2, chr3;

      var enc1, enc2, enc3, enc4;

      var i = 0;

   

      input = input.trim();

      input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

   

      while (i < input.length) {

   

        enc1 = this._keyStr.indexOf(input.charAt(i++));

        enc2 = this._keyStr.indexOf(input.charAt(i++));

        enc3 = this._keyStr.indexOf(input.charAt(i++));

        enc4 = this._keyStr.indexOf(input.charAt(i++));

   

        chr1 = (enc1 << 2) | (enc2 >> 4);

        chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);

        chr3 = ((enc3 & 3) << 6) | enc4;

   

        output = output + String.fromCharCode(chr1);

   

        if (enc3 != 64) {

          output = output + String.fromCharCode(chr2);

        }

        if (enc4 != 64) {

          output = output + String.fromCharCode(chr3);

        }

   

      }

   

      output = Base64._utf8_decode(output);

   

      return output;

   

    },

   

    // private method for UTF-8 encoding

    _utf8_encode : function (string) {

      string = string.replace(/\r\n/g,"\n");

      var utftext = "";

   

      for (var n = 0; n < string.length; n++) {

   

        var c = string.charCodeAt(n);

   

        if (c < 128) {

          utftext += String.fromCharCode(c);

        }

        else if((c > 127) && (c < 2048)) {

          utftext += String.fromCharCode((c >> 6) | 192);

          utftext += String.fromCharCode((c & 63) | 128);

        }

        else {

          utftext += String.fromCharCode((c >> 12) | 224);

          utftext += String.fromCharCode(((c >> 6) & 63) | 128);

          utftext += String.fromCharCode((c & 63) | 128);

        }

   

      }

   

      return utftext;

    },

   

    // private method for UTF-8 decoding

    _utf8_decode : function (utftext) {

      var string = "";

      var i = 0;

      var c = c1 = c2 = 0;

   

      while ( i < utftext.length ) {

   

        c = utftext.charCodeAt(i);

   

        if (c < 128) {

          string += String.fromCharCode(c);

          i++;

        }

        else if((c > 191) && (c < 224)) {

          c2 = utftext.charCodeAt(i+1);

          string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));

          i += 2;

        }

        else {

          c2 = utftext.charCodeAt(i+1);

          c3 = utftext.charCodeAt(i+2);

          string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));

          i += 3;

        }

   

      }

   

      return string;

    }

   

  }

 

  jQuery.fn.autoPrettyphoto = function(){

  

    var $ = jQuery;

    

    $('img.open_with_prettyphoto', this).each(function(){

    

      if($(this).parent().get(0).tagName != "A")

      {

        var name = $(this).attr('name');

        var src = $(this).attr('src');

        

        if(/thumbnails/.test(src) && name!="")

        {

          name = name.replace(/:/g, '=').replace(/_/g, '/').replace(/-/g, '+');

          src = Base64.decode(name);

        }

        var copy = $(this).clone();

        

        $('<a href="'+src+'" target="_self" rel="prettyPhoto[content_image]" ></a>').append(copy).replaceAll(this); 

      }

    });

    

    return this;

  };